CN210972767U

CN210972767U - Rail set among automatic sanding device of hydraulic engineering

Info

Publication number: CN210972767U
Application number: CN201921956083.6U
Authority: CN
Inventors: 段吉鸿; 王福义; 张学森; 谢坤; 张录奇; 母龙帮; 刘丽梅
Original assignee: Honghe Hani And Yi Autonomous Prefecture Water Resources And Hydropower Engineering Geological Survey Consultation Planning And Research Institute
Current assignee: Honghe Hani And Yi Autonomous Prefecture Water Resources And Hydropower Engineering Geological Survey Consultation Planning And Research Institute
Priority date: 2019-11-13
Filing date: 2019-11-13
Publication date: 2020-07-10
Anticipated expiration: 2029-11-13

Abstract

The utility model discloses a rail set among automatic sanding device of hydraulic engineering, include: the sand paving track is obliquely arranged and is used for bearing a sand material transport vehicle and a spiral spreading machine; the portal upper supporting leg device is arranged at the upper end of the sanding track and is connected with the sanding track, a winch is arranged on the portal upper supporting leg device and is respectively connected with the sand material transport vehicle and the spiral spreading machine through pull ropes to drive the sand material transport vehicle and the spiral spreading machine to slide on the sanding track; the door-shaped lower supporting leg device is arranged at the lower end of the sanding track and is connected with the sanding track. The track device is applied to an automatic sand paving device, can reduce the labor intensity of the sand paving operation and improve the sand paving efficiency.

Description

Rail set among automatic sanding device of hydraulic engineering

Technical Field

The utility model relates to a hydraulic engineering sanding technical field particularly, relates to a rail set among automatic sanding device of hydraulic engineering.

Background

The method solves the problem of uneven space-time distribution of water resources in order to meet the requirement of rapid development of the economic society, and the water requirements of various regions are increasingly large, so that the utilization rate of the water resources is urgently improved. Engineering water shortage in most areas of Yunnan has become a main factor severely restricting local development, most mountainous areas are karst landforms, karst is developed and is often seen in karst caves, underground rivers and the like, and the existing domestic exploration technology is difficult to completely detect specific leakage positions in all karst caves and underground rivers, so that the leakage phenomenon is caused when the karst caves and the underground rivers are built.

The most common reservoir seepage treatment solution is the laying of geomembranes. Before and after the geomembrane is laid, sand needs to be laid as a cushion layer, a reverse filter layer or a protective layer. The traditional construction method for spreading sand on the geomembrane is to manually pull and spread sand materials, so that the method has the advantages of manpower and material resource consumption, low efficiency, incapability of ensuring uniform sand spreading thickness, easiness in artificial damage to the spread geomembrane and failure of the geomembrane seepage prevention scheme. In order to solve the above problems, it is necessary to provide an automatic sanding device, and the rail device is an important component of the automatic sanding device.

SUMMERY OF THE UTILITY MODEL

A primary object of the utility model is to provide a rail set among the automatic sanding device of hydraulic engineering, this rail set be applied to can reduce the artifical intensity of labour of sanding operation among the automatic sanding device, improve sanding efficiency, this rail set stability is good, be convenient for remove and adjust.

In order to realize the above-mentioned purpose, the utility model provides a rail set among automatic sanding device of hydraulic engineering, include:

the sand paving track is obliquely arranged and is used for bearing a sand material transport vehicle and a spiral spreading machine;

the portal upper supporting leg device is arranged at the upper end of the sanding track and is connected with the sanding track, a winch is arranged on the portal upper supporting leg device and is respectively connected with the sand material transport vehicle and the spiral spreading machine through pull ropes to drive the sand material transport vehicle and the spiral spreading machine to slide on the sanding track;

the door-shaped lower supporting leg device is arranged at the lower end of the sanding track and is connected with the sanding track.

Furthermore, the sanding track comprises a first track and a second track, the second track is located below the first track, and the first track and the second track are connected through a truss structure.

Furthermore, a hopper is arranged above the sanding track on the door-shaped upper supporting leg device, and an electric single-beam suspension travelling crane is arranged above the hopper.

Furthermore, the upper end of the sanding track is connected with the door type upper supporting leg device through a universal joint spherical shaft head, and the lower end of the sanding track is connected with the door type lower supporting leg device through a universal joint.

Furthermore, a plurality of track brackets are arranged on the sanding track, the top of the door-shaped upper supporting leg device is connected with the track brackets through an inclined steel cable, and the top of the door-shaped lower supporting leg device is connected with the track brackets through an inclined steel cable.

Furthermore, landing leg device under landing leg device and the door type all includes a door type landing leg support body on the door type, and door type landing leg support body passes through bolted connection by many connecting rods and constitutes.

Further, the bottom of door type landing leg support body is equipped with landing leg altitude mixture control structure, and landing leg altitude mixture control structure includes:

the lifting nut is fixedly arranged at the bottom of the door-shaped landing leg frame body;

the lifting screw rod is arranged in the lifting nut in a penetrating mode, the lifting screw rod is in threaded connection with the lifting nut, and a universal joint spherical head is arranged at the lower end of the lifting screw rod;

the ball head seat is provided with a hemispherical groove, and the universal joint ball head is arranged in the hemispherical groove;

the ball seat gland is installed on the ball seat through bolt connection, a gland groove is formed in the ball seat gland, and the ball joint ball head is buckled in the hemispherical groove and the gland groove through the ball seat gland.

Further, the bottom of door type landing leg support body is equipped with landing leg moving structure, and landing leg moving structure includes:

the moving structure ball head seat is arranged at the bottom of the door-shaped supporting leg frame body through a passage wheel shaft, and a passage wheel ball head groove is formed in the bottom of the moving structure ball head seat;

the moving structure ball head support is provided with a moving structure universal joint ball head;

the moving structure ball head gland is installed below the moving structure ball head seat through bolt connection, and the moving structure universal joint ball head is buckled in the road wheel ball head groove;

and the walking roller is rotatably arranged on the moving structure ball head bracket.

Furthermore, two walking rollers are arranged on the ball head support of the moving structure in parallel.

Use the technical scheme of the utility model, through setting up the sanding track, landing leg device and portal type lower landing leg device on the portal type, during the application with portal type upper landing leg device and portal type lower landing leg device set up respectively in the upper and lower both sides on the hydraulic engineering inclined plane of waiting the sanding, will sanding orbital upper and lower both ends respectively with portal type upper landing leg device and portal type lower landing leg device be connected, slide sand material transport vechicle and spiral stand flat-bed machine and set up on the sanding track, slide at the sanding track through hoist engine drive sand material transport vechicle and spiral stand flat-bed machine and carry out the sanding. The track device is applied to an automatic sand paving device, can reduce the labor intensity of the sand paving operation and improve the sand paving efficiency.

The present invention will be described in further detail below with reference to the accompanying drawings.

Drawings

The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic structural diagram of a track device according to an embodiment of the present invention.

Fig. 2 is the schematic structural diagram of the sand laying track in the track device of the embodiment of the utility model.

Fig. 3 is a schematic structural diagram of a door-shaped lower leg device in a track device according to an embodiment of the present invention.

Fig. 4 is a schematic structural diagram of a door-shaped upper leg device in a track device according to an embodiment of the present invention.

Fig. 5 is a schematic structural diagram of the other side of the door-shaped upper leg device in the track device according to the embodiment of the present invention.

Fig. 6 is a schematic structural diagram of a leg height adjusting structure in a track device according to an embodiment of the present invention.

Fig. 7 is a schematic view of an internal structure of a leg height adjusting structure in a track device according to an embodiment of the present invention.

Fig. 8 is a schematic structural view of a ball seat of the track device according to the embodiment of the present invention.

Fig. 9 is a schematic top view of a ball seat cover of the track device according to the embodiment of the present invention.

Fig. 10 is a schematic cross-sectional view of a ball seat cover in the track device according to an embodiment of the present invention.

Fig. 11 is a schematic structural view of a lifting nut in the track device according to the embodiment of the present invention.

Fig. 12 is a schematic cross-sectional structural view of a lifting nut in the track device according to the embodiment of the present invention.

Fig. 13 is a schematic cross-sectional structural view of a moving structure of a support leg in a track device according to an embodiment of the present invention.

Fig. 14 is a schematic side view of a moving structure of a support leg in a track device according to an embodiment of the present invention.

Fig. 15 is a schematic structural diagram of the support leg moving structure of the track device according to the embodiment of the present invention after the moving structure ball seat and the moving structure ball gland are removed.

Fig. 16 is a schematic cross-sectional structural view of a moving structure ball head seat and a moving structure ball head gland in the rail device according to the embodiment of the present invention.

Fig. 17 is a schematic cross-sectional view of a ball cup with a moving structure in a track device according to an embodiment of the present invention.

Fig. 18 is a schematic cross-sectional view of the ball seat of the mobile structure in another direction in the track device according to the embodiment of the present invention.

Fig. 19 is a schematic structural view of a moving structure ball head gland in the track device according to the embodiment of the present invention.

Fig. 20 is a schematic cross-sectional structural view of a ball head gland with a moving structure in a track device according to an embodiment of the present invention.

Wherein the figures include the following reference numerals:

10. paving a sand track; 11. a first track; 12. a second track; 13. a truss structure; 14. a rail bracket; 20. a gate style upper leg unit; 30. a gate-type lower leg device; 40. a sand material transport vehicle; 50. a spiral flattening machine; 60. a winch; 70. a hopper; 80. an electric single-beam suspension crane; 90. a diagonal steel cable; 100. a gate-type leg frame body; 110. a leg height adjusting structure; 111. lifting the nut; 112. lifting the screw rod; 113. a ball cup seat; 114. a ball seat gland; 120. a leg moving structure; 121. a moving structure ball head seat; 122. a moving structure ball head bracket; 123. a moving structure ball head gland; 124. a walking roller; 130. a material transportation road; 1121. a universal joint ball head; 1131. a hemispherical recess; 1141. pressing a cover groove; 1211. a road wheel ball head groove; 1221. and moving the structural universal joint ball head.

Detailed Description

To facilitate understanding of the present invention, the present invention will be described more fully and specifically with reference to the accompanying drawings and preferred embodiments, but the scope of the present invention is not limited to the specific embodiments described below. It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.

Unless otherwise defined, all terms of art used hereinafter have the same meaning as commonly understood by one of ordinary skill in the art. The use of "first," "second," and similar terms in the description and in the claims does not indicate any order, quantity, or importance, but rather the intention is merely to facilitate a distinction between corresponding parts. Also, the use of the terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of at least one. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships are changed accordingly.

Referring to fig. 1 to 20, a rail device in an automatic sanding device for hydraulic engineering according to an embodiment of the present invention mainly includes a sanding rail 10, a gate-type upper leg device 20 and a gate-type lower leg device 30. The sand paving track 10 is obliquely arranged along a hydraulic engineering inclined plane to be paved with sand, and the sand paving track 10 is used for bearing a sand material transport vehicle 40 and a spiral paver 50; the portal upper supporting leg device 20 is arranged at the upper end of the sanding track 10 and is connected with the sanding track 10, a winch 60 is arranged on the portal upper supporting leg device 20, and the winch 60 is respectively connected with the sand material transport vehicle 40 and the spiral paver 50 through pull ropes and is used for driving the sand material transport vehicle 40 and the spiral paver 50 to slide on the sanding track 10; the gate-shaped lower leg device 30 is disposed at the lower end of the sanding rail 10 and connected to the sanding rail 10.

The track device is characterized in that the sanding track 10, the door-shaped upper supporting leg device 20 and the door-shaped lower supporting leg device 30 are arranged, the door-shaped upper supporting leg device 20 and the door-shaped lower supporting leg device 30 are respectively arranged on the upper side and the lower side of a hydraulic engineering inclined plane to be sanded when the track device is applied, the upper end and the lower end of the sanding track 10 are respectively connected with the door-shaped upper supporting leg device 20 and the door-shaped lower supporting leg device 30, the sand material transport vehicle 40 and the spiral paver 50 are arranged on the sanding track 10 in a sliding mode, and the sand material transport vehicle 40 and the spiral paver 50 are driven by the winch 60 to slide on the sanding track 10 for sanding. The track device is applied to an automatic sand paving device, can reduce the labor intensity of the sand paving operation and improve the sand paving efficiency.

Referring to fig. 1 and 2, in the present embodiment, the sanding rail 10 includes a first rail 11 and a second rail 12, wherein the second rail 12 is located below the first rail 11, and the first rail 11 and the second rail 12 are connected by a truss structure 13. The truss structure 13 is welded to the first 11 and second 12 rails as a unitary sanding rail 10. A hoist 60 is provided on the gate type upper leg unit 20 corresponding to the first rail 11 and the second rail 12, respectively. By arranging the first track 11 and the second track 12 which are arranged up and down, the sand material transport vehicles 40 on the first track 11 and the second track 12 can alternately run according to time difference according to the principle that the sand material is not on the same straight line at the same time when the sand material is fully loaded according to actual needs. In order to improve the working efficiency, after the sand material of the sand material transport vehicle 40 on the second track 12 is laid, the sand material of the sand material transport vehicle 40 on the first track 11 can be poured into the sand material transport vehicle 40 on the second track 12 in time, the sand material transport vehicle 40 on the second track 12 returns to the position of interrupting the sand laying to continue working, the sand material transport vehicle 40 on the first track 11 returns to receive and transport the sand material in time, and the laying efficiency is improved in a double way. In addition, the sand material transporting vehicle 40 can be used for paving the sand material upwards along the first rail 11, and the spiral flattening machine 50 can be used for flattening the sand material along the second rail 12, so that the sand paving efficiency can be improved.

In order to facilitate loading of the sand into the sand transporter 40, referring to fig. 1 and 4, in the present embodiment, a hopper 70 is further provided above the sanding rail 10 on the gate-type upper leg unit 20, and an electric single-beam overhead traveling crane 80 is provided above the hopper 70. The sand material transports the below of landing leg device 20 in portal type through material transportation road 130, hangs the driving 80 through electronic monospar and hangs the sand material and pour into hopper 70 in, returns the below of hopper 70 with empty sand material transport vechicle 40, can conveniently pack the sand material into sand material transport vechicle 40, has saved the manpower of sand material loading, has reduced artifical intensity of labour.

In this embodiment, the upper end of the sanding rail 10 is connected to the upper gate leg device 20 through a universal joint spherical head, and the lower end of the sanding rail 10 is connected to the lower gate leg device 30 through a universal joint. The universal joint type buckling connection can ensure that the whole device can integrally translate to lay the next surface without disassembly or part separation after one area is laid. In the integral translation process of the device, the upper portal-shaped support leg device 20, the lower portal-shaped support leg device 30 and the sanding track 10 are connected through universal joints, so that the sanding track 10 and the portal are guaranteed to shake to form an included angle, but the connection position of the sanding track 10 and the portal cannot be disconnected. The universal joint spherical shaft head at the joint of the sanding track 10 and the portal upper leg device 20 has large mobility, so that the included angle caused by shaking of the sanding track 10 can be ensured not to separate the sanding track 10 from the portal upper leg device 20. The universal joint at the joint of the sanding track 10 and the door-shaped lower leg device 30 can ensure the stability of connection between the sanding track 10 and the door-shaped lower leg device 30, and can bear certain weight.

Referring to fig. 1 and 2, in the present embodiment, a plurality of rail brackets 14 are provided on the sanding rail 10, the top of the gate-type upper leg unit 20 is connected to the rail brackets 14 by stay-stayed cables 90, and the top of the gate-type lower leg unit 30 is connected to the rail brackets 14 by stay-stayed cables 90. So set up, portal structure about the universal joint is connected at sanding track 10 both ends, utilize cable-stay steel cable 90 to withhold the track bracket 14 of sanding track 10 interlude to one side, divide a plurality of stress points up two directions of portal down to form certain contained angle, will sanding track 10 gravity that receives to the both sides portal structure, will draw the steel cable 90 other end to one side and receive the both sides portal structurally. By the arrangement, the sanding track 10, the door-shaped upper leg device 20 and the door-shaped lower leg device 30 in the automatic sanding device can bear force together, and the stability of the device is improved.

Specifically, referring to fig. 1, 3 to 6, in the present embodiment, each of the gate-type upper leg unit 20 and the gate-type lower leg unit 30 includes a gate-type leg frame body 100, and the gate-type leg frame body 100 is formed by connecting a plurality of connecting rods by bolts. The door-shaped upper supporting leg device 20 and the door-shaped lower supporting leg device 30 are divided into a plurality of connecting rods, and the connecting rods can be flexibly and randomly combined and placed in a transport vehicle and transported to a use place. The connecting rods are different in size, and any single part from small to large does not exceed 4 tons (namely the largest part is not more than 4 tons), so that the transportation and the assembly of the parts are facilitated. When the components are transported to a construction site for assembly or the whole components are disassembled after construction, the components can be assembled or disassembled by lifting with a crane of 8-12 tons. After any single part is transported to a construction site, the high-strength bolts are only combined and connected into a whole without welding on the site; after construction, the whole body is disassembled without gas cutting or cutting, and the bolt at the combined joint can be loosened to be disassembled into single parts. So arranged, the door type upper leg device 20 and the door type lower leg device 30 are convenient to transport, assemble and disassemble.

In engineering application, the height of the sanding track 10 may need to be adjusted according to actual construction conditions, and in order to facilitate height adjustment, referring to fig. 6 to 12, in this embodiment, a leg height adjusting structure 110 is further disposed at the bottom of the gate-shaped leg support frame 100, where the leg height adjusting structure 110 includes a lifting nut 111, a lifting screw 112, a ball seat 113, and a ball seat gland 114. Wherein, the lifting nut 111 is fixedly installed at the bottom of the door-shaped landing leg frame body 100, and the lifting screw 112 is square; the lifting screw rod 112 is arranged in the lifting nut 111 in a penetrating way, and the lifting screw rod 112 is in threaded connection with the lifting nut 111; a universal joint spherical head 1121 is arranged at the lower end of the lifting screw 112; a hemispherical groove 1131 is formed on the ball seat 113, and a universal joint ball 1121 is disposed in the hemispherical groove 1131; the ball seat gland 114 is installed on the ball seat 113 through bolt connection, the ball seat gland 114 is provided with a gland groove 1141, the ball seat gland 114 fastens the universal joint ball head 1121 in the hemispherical groove 1131 and the gland groove 1141; the other side of the ball socket 113 is horizontal and is close to the ground for supporting the leg height adjustment structure 110.

By adopting the above-mentioned leg height adjusting structure 110, the inclination of the upper door-shaped leg device 20 and the lower door-shaped leg device 30 can be flexibly adjusted along with the terrain conditions at multiple angles, so as to achieve the stable effect of being tightly attached to the ground, the universal joint spherical head 1121 and the ball head seat 113 are fastened with each other, and simultaneously, the universal joint spherical head 1121 and the ball head seat 113 can easily and flexibly rotate at will to form a universal joint spherical rotating device, so that four corners of the gantry device can stably stand along with the terrain conditions of unevenness overcome by the vertical adjustment of the leg height adjusting structure 110. When the leg height adjusting structure 110 is adjusted, the portal upper leg device 20 and the portal lower leg device 30 can be jacked up by a jack, or the portal upper leg device 20 and the portal lower leg device 30 are hoisted by a chain block, the hoisting screw 112 is rotated to slide up and down, so that the height of the bottom of the ball head seat 113 is adjusted along with the vertical sliding of the hoisting screw 112, the height adjustment of the four legs at the bottom of the portal leg is completed, the portal upper leg device 20 and the portal lower leg device 30 are fixed on a plane, and the portal leg can stand stably.

When the automatic sand paving device is used in engineering, after one area is paved, the whole device needs to be moved to another area for continuous paving. In order to facilitate the overall movement of the automatic sanding device, referring to fig. 13 to 20, in this embodiment, a leg moving structure 120 is further disposed at the bottom of the gate-type leg frame body 100, and the leg moving structure 120 includes a moving structure ball seat 121, a moving structure ball support 122, a moving structure ball gland 123, and a walking roller 124. The moving structure ball seat 121 is mounted at the bottom of the gate-shaped landing leg frame 100 through a road wheel shaft, and a road wheel ball head groove 1211 is formed at the bottom of the moving structure ball seat 121; a moving structure universal joint ball 1221 is arranged on the moving structure ball support 122; the moving structure ball gland 123 is installed below the moving structure ball seat 121 through bolt connection, and the moving structure universal joint ball 1221 is buckled in the road wheel ball groove 1211; the travel rollers 124 are rotatably mounted on the mobile structure ball mount 122. The leg moving structure 120 is controlled by a ball joint, can be rotated at will at 360 degrees, and can be inclined at any angle to adapt to various terrain conditions, so that the gate-type upper leg device 20 and the gate-type lower leg device 30 can move at will.

Further, referring to fig. 14 and 15, in the present embodiment, two walking rollers 124 are mounted on the moving structure ball bracket 122 in parallel. By installing two walking rollers 124 in parallel on each moving structure ball head bracket 122, the flexibility of the device movement is ensured, and the pressure intensity on unit area is reduced. It has been found that it is right to install two walking rollers 124 in parallel on the moving structure ball bracket 122, and if more walking rollers 124 are installed, it is neither flexible nor wastes material.

Adopted the utility model discloses an application method of track device's automatic sanding device as follows:

respectively installing a door-shaped upper supporting leg device 20 and a door-shaped lower supporting leg device 30 at the upper end and the lower end of a hydraulic engineering inclined plane to be sanded, and respectively connecting the upper end and the lower end of a sanding track 10 with the door-shaped upper supporting leg device 20 and the door-shaped lower supporting leg device 30, so that the sanding track 10 is arranged above the hydraulic engineering inclined plane in an overhead manner;

the sand material is loaded into the hopper 70 through the electric single-beam suspended travelling crane 80, the sand material is poured into the sand material transport vehicle 40 through the hopper 70, and the pull rope of the winch 60 is connected with the sand material transport vehicle 40, so that the sand material transport vehicle 40 loaded with the sand material automatically slides downwards to the lower end of the sand paving track 10 under the action of the self gravity of the sand material transport vehicle;

the sand material transport vehicle 40 is pulled to move upwards along the sand paving track 10 through the winch 60, in the process that the sand material transport vehicle 40 moves upwards, the bag lifting hydraulic push rod 43 is controlled to extend out, the bag 42 is turned backwards, the bag door 421 is driven to rotate through the connecting rod 44 and the rotating arm 45, the rear end of the bag 42 is opened for discharging, and sand materials are paved on the hydraulic engineering inclined plane;

pulling the spiral spreading machine 50 to move upwards along the sanding track 10 through the winch 60, and spreading the sand paved on the hydraulic engineering inclined plane;

after sanding of one area is completed, the door-shaped upper leg device 20 and the door-shaped lower leg device 30 are integrally moved to the next sanding area together with the sanding rail 10 by the leg moving structure 120, and sanding is continued.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a rail set among automatic sanding device of hydraulic engineering which characterized in that includes:

the sand paving track (10) is obliquely arranged, and the sand paving track (10) is used for bearing a sand material transport vehicle (40) and a spiral spreading machine (50);

the portal upper leg device (20) is arranged at the upper end of the sanding track (10) and is connected with the sanding track (10), a winch (60) is arranged on the portal upper leg device (20), the winch (60) is respectively connected with the sand material transport vehicle (40) and the spiral spreader (50) through pull ropes, and the sand material transport vehicle (40) and the spiral spreader (50) are driven to slide on the sanding track (10);

the door-shaped lower supporting leg device (30) is arranged at the lower end of the sanding track (10) and is connected with the sanding track (10).

2. Track arrangement in an automatic sanding device for hydraulic engineering according to claim 1, characterized in that the sanding track (10) comprises a first track (11) and a second track (12), the second track (12) being located below the first track (11), the first track (11) and the second track (12) being connected by a truss structure (13).

3. The track device in the automatic sanding device for hydraulic engineering according to claim 1, wherein a hopper (70) is arranged above the sanding track (10) on the gate-shaped upper leg device (20), and an electric single-beam suspended travelling crane (80) is arranged above the hopper (70).

4. The track device of the automatic sanding device for the hydraulic engineering according to claim 1, wherein the upper end of the sanding track (10) is connected with the portal upper leg device (20) through a universal joint spherical shaft head, and the lower end of the sanding track (10) is connected with the portal lower leg device (30) through a universal joint.

5. The rail device of the automatic sanding device for the hydraulic engineering according to claim 1, wherein a plurality of rail brackets (14) are arranged on the sanding rail (10), the top of the door-shaped upper leg support device (20) is connected with the rail brackets (14) through a diagonal steel cable (90), and the top of the door-shaped lower leg support device (30) is connected with the rail brackets (14) through a diagonal steel cable (90).

6. The rail device of the automatic sanding device for hydraulic engineering according to claim 1, wherein the upper gate-shaped leg support device (20) and the lower gate-shaped leg support device (30) each comprise a gate-shaped leg support body (100), and the gate-shaped leg support body (100) is formed by connecting a plurality of connecting rods through bolts.

7. The rail device of the automatic sanding device for hydraulic engineering according to claim 6, wherein the bottom of the door-shaped leg frame body (100) is provided with a leg height adjusting structure (110), and the leg height adjusting structure (110) comprises:

the lifting nut (111) is fixedly arranged at the bottom of the door-shaped landing leg frame body (100);

the lifting screw rod (112) is arranged in the lifting nut (111) in a penetrating mode, the lifting screw rod (112) is in threaded connection with the lifting nut (111), and a universal joint spherical head (1121) is arranged at the lower end of the lifting screw rod (112);

the ball seat (113) is provided with a hemispherical groove (1131), and the universal joint ball head (1121) is arranged in the hemispherical groove (1131);

the ball seat gland (114) is installed on the ball seat (113) through bolt connection, a gland groove (1141) is formed in the ball seat gland (114), and the universal joint ball head (1121) is buckled in the hemispherical groove (1131) and the gland groove (1141) through the ball seat gland (114).

8. The rail device of the automatic sanding device for hydraulic engineering according to claim 6, wherein the bottom of the gate-shaped leg frame body (100) is provided with a leg moving structure (120), and the leg moving structure (120) comprises:

the movable structure ball seat (121), the movable structure ball seat (121) is installed at the bottom of the door-shaped supporting leg frame body (100) through a road wheel shaft, and a road wheel ball head groove (1211) is formed in the bottom of the movable structure ball seat (121);

the ball head support (122) of the moving structure is provided with a universal joint ball head (1221) of the moving structure;

the moving structure ball head gland (123), the moving structure ball head gland (123) is installed below the moving structure ball head seat (121) through bolt connection, and the moving structure universal joint ball head (1221) is buckled in the road wheel ball head groove (1211);

and the walking roller (124) is rotatably arranged on the moving structure ball head bracket (122).

9. The rail device of the automatic sanding device for hydraulic engineering according to claim 8, wherein two walking rollers (124) are installed on the moving structure ball bracket (122) in parallel.