JPH0592484U - Work vehicle with squeeze pump - Google Patents

Abstract

(57) [Summary] [Structure] The squeeze pump 6 is mounted on the rear ends of the main frames 1 and 2 of the automobile, and the support arm portions 20 and 21 are provided on the rear ends of the pair of left and right main frames 1 and 2. The hopper 13 for supplying the slurry to the pump 6 is connected to the mounting members 22 and 23 which are guided by the support arms 20 and 21 and whose position can be adjusted in the front-rear direction. [Effect] The attachment structure of the hopper 13 to the main frames 1 and 2 of the automobile can be simplified to reduce the weight, and the work of attaching and detaching the hopper 13 to the main frames 1 and 2 can be easily performed.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 This invention relates to a work vehicle equipped with a squeeze pump.

[0002]

[Prior Art]

 As a conventional work vehicle equipped with a squib pump, a work vehicle disclosed in Japanese Patent Publication No. 58-50891 has been proposed. This work vehicle is extended on the inner wall surface of the cylindrical pump case, and the pumping tube is designed so that both ends of the discharge port and the inlet are projected rearward from the upper and lower sides of the pump case. A squeeze pump designed to generate a pumping action is mounted on the main frame between the rear wheel of the vehicle and the rear end of the main frame, and the lower part of the pump is stored below the main frame. On the other hand, a hopper that is lower than the main frame above the ground and has a lateral width larger than that between the main frames and that feeds ready-mixed concrete to the pump is installed on an extension frame that extends rearward from the rear end of the main frame. It is configured to connect the suction side of the pumping tube to the outlet of the hopper.

[0003]

[Problems to be solved by the device]

 However, the conventional work vehicle described above has a problem that the structure for mounting the hopper on the extension frame is complicated, the number of parts increases, the weight increases, and the hopper mounting work is troublesome.

An object of the present invention is to provide a work vehicle equipped with a squeeze pump that simplifies the mounting structure of the hopper to the main frame to reduce the weight and allows the hopper to be easily attached and detached.

[0005]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the present invention provides a pumping tube along a circular arc shape on the inner wall surface of a cylindrical pump case, and opens the lower suction port and the upper discharge port of the tube rearward so that the inside of the pump case A squeeze pump, in which a pressing roller rolls in contact with the pumping tube to perform a pumping action, is mounted at the rear end of the main frame of the automobile, and a support arm is provided at the rear end of the pair of left and right main frames. A means for connecting a mounting member that is provided in the hopper for supplying slurry to the pump and is positionally adjustable in the front-rear direction by being guided by the support arm, and further connecting the outlet of the hopper to the suction port of the pumping tube. Is taking.

[0006]

[Action]

 According to this invention, a supporting arm is provided at the rear end of a main frame of an automobile, while a mounting member is provided at a position corresponding to the supporting arm on the hopper, and the mounting member is fitted to the supporting arm. Since they are connected together, the hopper mounting structure can be simplified to reduce the weight and the hopper can be easily attached and detached.

[0007]

【Example】

 An embodiment of a work vehicle equipped with a squeeze pump embodying the present invention will be described below with reference to FIGS. 1 to 4.

Subframes 3 and 4 are provided corresponding to a pair of left and right main frames 1 and 2 of an automobile, and a squeeze pump 6 described later is mounted on the subframes 3 and 4. 5 is a rear wheel.

The squeeze pump 6 has a pumping tube 8 accommodated in an arc shape along an inner wall surface of a horizontal cylindrical pump case 7, and two sets of pressing members that roll while pinching the pumping tube 8 from the side. It is composed of rollers 9 and 10 and an arm plate 12 that transmits the rollers 9 and 10 to the rollers 9 and 10 through a support shaft 11 by the rotational force of an unillustrated hydraulic motor or the like. The lower opening of the pumping tube 8 horizontally extends rearward as a suction port and is connected to a discharge pipe 14 attached to the central part of a hopper 13, which will be described later, and the upper opening is It can be connected to a tube (not shown) as a discharge port. The squeeze pump 6 is supported by fixed brackets 15 and 16 mounted on the subframes 3 and 4.

Next, the mounting structure of the hopper 13 will be described. At the rear ends of the main frames 1 and 2, supporting arm portions 20 and 21 having a lateral channel-shaped cross section are integrally formed so as to project rearward, so that the supporting arm portions 20 and 21 correspond to the supporting arm portions 20 and 21. At the lower side of the hopper 13, mounting members 22 and 23 having a lateral channel shape in the same cross section are fixed by welding or the like via an arc-shaped reinforcing plate 24. Flange portions 22a and 23a are integrally formed on the upper and lower edges of the mounting members 22 and 23, respectively, so as to correspond to the flange portions 26 formed on the upper and lower side portions of the support arm portions 20 and 21, respectively. Then, both mounting members 22 and 23 are fitted to the outer side surfaces of the support arm portions 20 and 21 from the rear, and the bolt 27 is inserted into the bolt insertion holes 23a and 26a formed in the flange portions 23a and 26, respectively. The support arms 20 and 21 and the attachment members 22 and 23 are tightened and fixed to support the hopper 13 at a predetermined position. The bolt insertion holes 26a of the flange portion 26 are formed at a plurality of positions, and the position of the hopper 13 in the front-rear direction can be adjusted by changing the position corresponding to the bolt insertion holes 23a.

A hydraulic cylinder (not shown) may be interposed between the hopper 13 and the main frames 1 and 2 so that the hopper 13 can reciprocate in the front-rear direction. Next, the operation of the work vehicle equipped with the squeeze pump configured as described above will be described.

When the arm plate 12 of the squeeze pump 6 and the pressing rollers 9 and 10 are rotated by a hydraulic motor in a state where the fresh concrete is stored in the hopper 13, the fresh concrete is transferred from the suction port to the discharge port in the pumping tube 8. It is pressed and moved toward and is supplied from the discharge port to a tube (not shown).

In the above embodiment, the mounting members 22 and 23 attached to the hopper 13 are fitted to the supporting arm portions 20 and 21 located at the rear end portions of the main frames 1 and 2, and the flange portions 23a and 26 are provided. Since the bolt 27 is inserted into the bolt insertion holes 23a and 26a of the hopper 13 to fix the hopper 13 at a predetermined position, the number of parts supporting the hopper 13 is reduced, and the weight of the mounting structure can be reduced. The work of mounting or removing the hopper 13 can be performed by a simple operation of fitting the mounting members 22 and 23 to the support arm portions 20 and 21 and tightening the bolts.

The present invention is not limited to the above-described embodiment, and may be implemented as follows, for example. (1) As shown in FIG. 5, the tip end portions of the mounting members 22 and 23 formed in a step shape with respect to the hopper 13 are fitted and locked to the support arm portions 20 and 21. In this case, since the ground height of the hopper 13 can be reduced, it is possible to easily carry out the operation of charging the raw corn into the hopper 13.

(2) If necessary, the mounting members 22 and 23 may be displaced upward to increase the ground height of the hopper 13. (3) The tips of the mounting members 22 and 23 may be inserted and locked inside the support arms 20 and 21.

[0016]

[Effect of the device]

 As described in detail above, the present invention simplifies the mounting structure of the hopper to the main frame of the automobile, can reduce the weight of the device, and facilitates the attachment and detachment work of the hopper to the main frame. effective.

[Brief description of drawings]

FIG. 1 is a side view showing an embodiment of a work vehicle equipped with a squeeze pump embodying the present invention.

FIG. 2 is a sectional view taken along the line AA of FIG.

FIG. 3 is a sectional view taken along line BB of FIG.

FIG. 4 is a partially enlarged perspective view showing a mounting structure.

FIG. 5 is a side view showing another embodiment of the present invention.

[Explanation of symbols]

1, 2 ... Main frame, 6 ... Squeeze pump, 13 ... Hopper, 20, 21 ... Support arm part, 22, 23 ... Mounting member, 23a, 26 ... Flange part, 23b, 26a ... Bolt insertion hole, 27 ... Bolt.

Claims (1)

[Scope of utility model registration request] 1. A pumping tube is provided along an arcuate shape on an inner wall surface of a cylindrical pump case, and a lower suction port and an upper discharge port of the tube are opened rearward so that the pressure roller in the pump case is pumped by the pumping roller. A squeeze pump that rolls into contact with a tube to perform a pumping action is mounted on the rear end of the main frame of an automobile, and support arms are provided on the rear end of a pair of left and right main frames. A squeeze pump equipped with a hopper for supplying slurry, which is connected to a mounting member whose position can be adjusted in the front-rear direction by being guided by the support arm portion, and further has an outlet of the hopper connected to an inlet of the pumping tube. Work vehicle.