CN211006830U - A bucket with replaceable teeth for an excavator - Google Patents

Abstract

The utility model discloses a scraper bowl of removable bucket tooth is used to excavator relates to the construction machinery field. The technical key points are as follows: the utility model provides a scraper bowl of removable bucket tooth for excavator, including the bucket body, the bottom of bucket body can be dismantled and be connected with a plurality of transversal right triangle's of personally submitting connection tooth, two right angle lateral walls of connection tooth are the diapire of connection tooth and a lateral wall that the connection tooth is close to the bucket body respectively, one side that the bucket body was kept away from to the connection tooth can be dismantled in proper order and be connected with a plurality of transversal obtuse triangle's of personally submitting movable teeth, an obtuse lateral wall of movable tooth is the diapire of movable tooth and this lateral wall and connection tooth diapire coplane, between connection tooth and the movable tooth, all be provided with between the adjacent movable tooth and be used for rather than fixed subassembly, one of them connection tooth and rather than can dismantle a plurality of movable teeth of connection and enclose into transversal right triangle's of personally submitting surround.

Description

A bucket with replaceable teeth for an excavator

technical field

The utility model relates to the field of construction machinery, in particular to a bucket with replaceable bucket teeth for excavators.

Background technique

Excavator, also known as excavator, is an earth-moving machine that uses a bucket to excavate materials above or below the bearing surface and load it into a transport vehicle or unload it to a stockyard. It is often used in construction sites. Since the digging function of the excavator is realized by the bucket, the bucket will be in direct contact with the material, resulting in frequent wear and tear of the bucket teeth on the bucket. In order to reduce the replacement cost, a shovel with removable bucket teeth was invented. fight.

A Chinese invention patent with publication number CN107574856A discloses a bucket with replaceable bucket teeth for excavators, which includes a back plate, a hanging lug plate, a water filter, a tooth seat and a bag plate, and the protective plate is fixedly arranged on the bucket At the center of the outer wall of the main body, the top side of the blade is fixedly connected with a side wear plate, and the side wear plate is fixed and connected to the side plate, the bottom of the water filter device is fixed with a bottom wear plate, and the bottom of the bucket main body is fixed A tooth seat plate is installed, the tooth seat is movably connected to the bucket teeth through tooth pins, side teeth are arranged on both sides of the outer wall of the cladding plate, and the tooth seat plate is movably connected with the connecting sleeve plate with bucket teeth through fixing bolts.

Similar to the above-mentioned bucket in the prior art, although the bucket teeth can be replaced, the existing bucket teeth generally need to be replaced after their tips are worn and passivated, and the passivated bucket teeth cannot be used. rate is low.

Utility model content

The purpose of the utility model is to provide a bucket with replaceable teeth for an excavator, which has the advantage of improving the utilization rate of the teeth.

To achieve the above object, the utility model provides the following technical solutions:

A bucket with replaceable bucket teeth for an excavator, comprising a bucket body, the bottom end of the bucket body is detachably connected with a plurality of connecting teeth with a right-angled triangle in cross-section, and the two right-angled side walls of the connecting teeth are respectively connected The bottom wall of the tooth and the side wall of the connecting tooth close to the bucket body, the side of the connecting tooth away from the bucket body is detachably connected with a number of movable teeth whose cross section is an obtuse triangle, and an obtuse side wall of the movable tooth is The bottom wall of the movable tooth and the side wall are coplanar with the bottom wall of the connecting tooth, between the connecting tooth and the movable tooth, and between the adjacent movable teeth, there are fixed components for fixing them, and one of the connecting teeth and a plurality of movable teeth detachably connected with it to form a right-angled triangle in cross section.

By adopting the above technical solutions, firstly, the end of the closing teeth away from the bucket body is a tip, which can be used as a bucket tooth; secondly, when the tip of the closing teeth is worn and aged, the fixed component is removed, and the worn movable teeth are removed. At this time, the end of the closing teeth away from the bucket body is another movable tooth with two acute angles. Therefore, the closing teeth at this time have a new tip, which can not only greatly improve the excavation efficiency of the excavator, but also fully utilize the bucket teeth. , there is no need to replace the entire closing teeth frequently, and the utilization rate of the bucket teeth is improved.

Further, the fixing assembly includes a plurality of threaded grooves, a plurality of fixing bars and a plurality of fastening bolts, the threaded grooves are opened on two opposite side walls of the connecting teeth and two opposite side walls of the movable teeth, and the fixing bars are located on the connecting teeth. and between the movable teeth and between the adjacent movable teeth, the fixing strips respectively close the two thread groove openings and the two thread grooves are respectively located between the connecting teeth and the movable teeth and between the adjacent movable teeth. The bolts pass through the fixing bars and thread into the threaded grooves.

By adopting the above technical solution, after the fastening bolts are unscrewed, the adjacent movable teeth and between the movable teeth and the connecting teeth can be disassembled; after the fastening bolts are tightened, the adjacent movable teeth, the movable teeth and the connection The teeth can be fixed to form a surrounding tooth, which is convenient for disassembly and assembly.

Further, an abutting spring that is pressed against the end of the fastening bolt is coaxially arranged in the thread groove.

By adopting the above technical solution, after the tightening bolt is tightened, the abutting spring will abut against the end of the tightening bolt to prevent the tightening bolt from loosening and improve the stability of the bucket teeth.

Further, the bottom wall of the threaded groove is directed toward the inner coaxially protruding limit post of the pressing spring, and there is a gap between the limit post and the end of the fastening bolt.

By adopting the above technical solution, the limiting column plays a limiting role, and when the tightening bolt is tightened, the non-axial deformation of the abutting spring is less likely to occur, and the stability of the abutting spring is improved.

Further, the tightening bolt includes a tightening screw rod and a tightening head, the tightening head is located outside the threaded groove, and a spring washer is sleeved on one end of the tightening bolt close to the tightening head.

By adopting the above technical solution, firstly, the spring washer has the ability to deform, which improves the tightness between the fastening bolt and the spring washer when the tightening bolt is tightened, so as to avoid the jamming caused by mud entering the threaded groove during the excavation process of the excavator; secondly, Spring washers prevent loosening of the fastening bolts.

Further, the bottom wall of the movable teeth and a side wall near the connecting teeth are provided with positioning grooves, and the connecting teeth and the movable teeth are protruded with positioning blocks toward the adjacent positioning grooves.

By adopting the above technical solution, the positioning block plays a positioning role, which facilitates the disassembly and assembly of the movable teeth; at the same time, the positioning block cooperates with the positioning groove to form a clamping structure, which reduces the force of the fastening bolt and improves the stability of the bucket teeth.

Further, a compression spring is fixed on the bottom wall of the positioning groove toward the opening of the positioning groove, and a cleaning plate is fixed at one end of the compression spring away from the bottom wall of the positioning groove, and the cleaning plate is slidably connected to the inner wall of the positioning groove.

By adopting the above technical solution, the cleaning plate can scrape out the soil in the positioning groove, thereby preventing the fastening bolts from being stuck with the positioning groove.

Further, the cleaning plate is attached to the peripheral side wall of the positioning groove, and a scraper is fixed on the cleaning plate toward the opening direction of the positioning groove.

By adopting the above technical solution, the scraper can easily scrape out the soil in the positioning groove, thereby improving the cleaning efficiency.

Further, a fixing groove is formed on the side of the bucket body close to the connecting teeth, a fixing block protrudes from the connecting tooth toward the fixing groove, and a fixing bolt is arranged on the top of the fixing block, and the fixing bolt passes through the bucket in sequence. The body and the fixing block are screwed together.

By adopting the above technical solution, after unscrewing the fastening bolts, the connecting teeth will be separated from the bucket body; after tightening the fastening bolts, the fixing block and the fixing groove can be relatively fixed, thereby realizing the fixing of the closing teeth and the bucket body.

Compared with the prior art, the beneficial effects of the present utility model are:

(1) By setting the connecting teeth and the movable teeth detachably connected with the connecting teeth, the connecting teeth and the movable teeth are fixed by the fixing component. When the tips of the movable teeth are worn and aged, the worn movable teeth can be removed and replaced with The new movable teeth with two acute angles can not only greatly improve the excavation efficiency of the excavator, but also fully utilize the bucket teeth and improve the utilization rate of the bucket teeth;

(2) By setting up abutting springs and spring washers, the tightening bolts are prevented from loosening, and the stability of the tightening bolts is improved, thereby improving the stability of the fixed components;

(3) By setting the positioning block and the positioning groove, the positioning block plays a positioning role, and at the same time reduces the force of the fastening bolts and improves the stability of the bucket teeth; the cleaning plate and the scraper are set to avoid the fastening bolts and the positioning groove stuck.

Description of drawings

Fig. 1 is the overall schematic diagram of this embodiment;

2 is a schematic cross-sectional view of this embodiment;

Fig. 3 is the enlarged schematic diagram of part A in Fig. 2;

4 is a schematic diagram of the first state after the explosion of the closing teeth in the present embodiment;

5 is a schematic diagram of the second state after the explosion of the closing teeth in the present embodiment;

Fig. 6 is the enlarged schematic diagram of part B in Fig. 3;

FIG. 7 is a three-dimensional cross-sectional view of the present embodiment highlighting the fixing assembly;

FIG. 8 is an enlarged schematic view of part C in FIG. 7 .

Reference numerals: 1, bucket body; 2, connecting teeth; 201, right-angled side wall; 202, right-angled inclined wall; 3, movable tooth; 301, obtuse-angled side wall; 302, obtuse-angled inclined wall; Thread groove; 402, fixing strip; 403, tightening bolt; 4031, tightening head; 4032, tightening screw; 5, closing tooth; 6, pressing spring; 7, limit post; 8, spring washer; 9. Positioning slot; 10. Positioning block; 11. Compression spring; 12. Cleaning plate; 13. Scraper; 14. Fixing block; 15. Fixing bolt.

Detailed ways

The present utility model will be described in detail below with reference to the accompanying drawings and embodiments.

Referring to FIG. 1 , a bucket with replaceable teeth for an excavator includes a bucket body 1 .

Referring to FIG. 2 and FIG. 3 , the bottom end of the bucket body 1 is provided with a plurality of connecting teeth 2 with a right-angled triangle in cross section.

4 and 5 , in this embodiment, the side wall where the right-angled side of the above-mentioned right-angled triangle is located is called the right-angled side wall 201 , and the side wall where the inclined side of the right-angled triangle is located is called the right-angled inclined wall 202 . The side walls 201 are respectively the bottom wall of the connecting teeth 2 and a side wall of the connecting teeth 2 close to the bucket body 1 (refer to FIG. 3 ).

Referring to FIG. 3 , a fixing groove (not shown in the figure) is formed on the side of the bucket body 1 close to the connecting tooth 2 , a fixing block 14 protrudes from the connecting tooth 2 toward the fixing groove, and a fixing bolt 15 is provided on the top of the fixing block 14 . The fixing bolts 15 pass through the bucket body 1 and the fixing block 14 in turn and are screwed together with them. After loosening the fixing bolts 15 , the connecting teeth 2 can be disassembled from the bucket body 1 .

The side of the connecting tooth 2 away from the bucket body 1 is sequentially detachably connected with two movable teeth 3 whose cross section is an isosceles obtuse triangle.

Referring to FIGS. 4 and 5 , in this embodiment, the side wall where the obtuse side of the obtuse triangle is located is called the obtuse side wall 301 , and the side wall where the other side of the obtuse triangle is located is called the obtuse inclined wall 302 . One of the obtuse side walls 301 of the two movable teeth 3 is the bottom wall of the movable teeth 3 and this side wall is coplanar with the bottom wall of the connecting teeth 2, and the other obtuse side walls 301 of the two movable teeth 3 are respectively connected with the right-angled inclined wall 202. And the adjacent obtuse-angled inclined walls 302 fit together. One of the connecting teeth 2 and the two movable teeth 3 that are detachably connected with it form a closing tooth 5 with a right-angled triangle in cross section (refer to FIG. 1 ).

Referring to FIG. 4 , the bottom wall of the movable tooth 3 and the other obtuse side wall 301 are both provided with a positioning groove 9 . Referring to FIG. 6 , the positioning grooves 9 are symmetrically distributed with the center line of the obtuse triangle as the symmetry axis. A compression spring 11 is fixed on the bottom wall of the positioning slot 9 toward the opening of the positioning slot 9 , and a cleaning plate 12 is fixed at the end of the compression spring 11 away from the bottom wall of the positioning slot 9 . A scraper 13 is fixed on the cleaning plate 12 toward the opening of the positioning slot 9 , and the side of the scraper 13 close to the inner wall of the positioning slot 9 is attached to the inner wall of the positioning slot 9 . When the compression spring 11 vibrates, the cleaning plate 12 and the scraper 13 can scrape out the soil in the positioning groove 9 .

3 and 6 , the connecting teeth 2 and the movable teeth 3 have positioning blocks 10 protruding toward the adjacent positioning grooves 9 . The positioning block 10 plays a positioning role and improves the stability of the bucket teeth.

Referring to FIG. 5 , between the connecting teeth 2 and the movable teeth 3 , and between the adjacent movable teeth 3 , a fixing assembly 4 for fixing them is provided. The fixing assembly 4 includes a threaded groove 401 , a fixing bar 402 and a fastening bolt 403 . 4, the threaded groove 401 is opened in the connecting tooth 2 and the two opposite side walls connected with the right-angled side wall 201 and the right-angled inclined wall 202 at the same time, and the threaded groove 401 is also opened in the movable tooth 3. At the same time, it is inclined with the obtuse-angled side wall 301 and the obtuse-angled side wall. The wall 302 connects the two opposite side walls, wherein two thread grooves 401 are formed on the same side wall of each movable tooth 3 .

In the actual installation process, the fixing bar 402 is attached to the side wall of the connecting tooth 2 and the movable tooth 3 where the threaded groove 401 is formed. It is located between the connecting tooth 2 and the movable tooth 3 or between the adjacent movable teeth 3 . Fastening bolts 403 pass through the fixing bars 402 and are threadedly connected with the threaded grooves 401 . After the fastening bolts 403 are unscrewed, the disassembly function can be realized between the adjacent movable teeth 3 and between the movable teeth 3 and the connecting teeth 2 .

7 and 8 , the fastening bolt 403 includes a fastening screw 4032 and a fastening head 4031 . The fastening head 4031 is located outside the threaded groove 401 , and the fastening screw 4032 is screwed into the threaded groove 401 . There is a gap between the tightening screw 4032 and the bottom wall of the threaded groove 401, and a pressing spring 6 is arranged in this gap. The pressing spring 6 is coaxial with the threaded groove 401, and one end of the pressing spring 6 is welded to the bottom of the threaded groove 401. wall, and the other end is pressed against the tightening screw 4032.

The bottom wall of the threaded groove 401 protrudes coaxially toward the restraining spring 6 with a limit post 7 . A spring washer 8 is sleeved at one end of the fastening bolt 403 close to the fastening head 4031 . After the fastening bolt 403 is tightened, the spring washer 8 will abut against the side wall of the fixing bar 402 .

The working process and beneficial effects of the present invention are as follows: First, the end of the closing teeth 5 away from the bucket body 1 is a tip, which can be used as a bucket tooth; when the tips of the closing teeth 5 are worn and aged, the fixing bar 402 is removed, and the The worn movable teeth 3 are removed. At this time, the end of the closing teeth 5 away from the bucket body 1 is another movable tooth 3 with two acute angles. Therefore, the closing teeth 5 at this time have a new tip, which can not only greatly improve the excavation The digging efficiency of the machine is improved, and the bucket teeth can be fully utilized, and the entire closing teeth 5 need not be replaced frequently, thereby improving the utilization rate of the bucket teeth.

The above are only the preferred embodiments of the present invention, and the protection scope of the present invention is not limited to the above-mentioned embodiments, and all technical solutions that belong to the idea of the present invention belong to the protection scope of the present invention. It should be pointed out that for those skilled in the art, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims (9)

1. A bucket with replaceable bucket teeth for an excavator, comprising a bucket body (1), characterized in that the bottom end of the bucket body (1) is detachably connected with a plurality of connecting teeth ( 2), the two right-angled side walls (201) of the connecting tooth (2) are respectively the bottom wall of the connecting tooth (2) and a side wall of the connecting tooth (2) close to the bucket body (1). 2) A plurality of movable teeth (3) with an obtuse triangle in cross section are detachably connected to the side away from the bucket body (1) in turn, and an obtuse side wall (301) of the movable teeth (3) is the movable teeth (3). and this side wall is coplanar with the bottom wall of the connecting teeth (2), between the connecting teeth (2) and the movable teeth (3) and between the adjacent movable teeth (3) are provided for fixing them The fixed assembly (4), wherein one of the connecting teeth (2) and a plurality of movable teeth (3) detachably connected with it form a closing tooth (5) with a right-angled triangle in cross section. 2 . The bucket with replaceable teeth for an excavator according to claim 1 , wherein the fixing assembly ( 4 ) comprises a plurality of threaded grooves ( 401 ), a plurality of fixing bars ( 402 ) and a plurality of tightening bars ( 402 ). 3 . The fixing bolt (403), the thread groove (401) is opened on the two opposite side walls of the connecting tooth (2) and the two opposite side walls of the movable tooth (3), and the fixing strip (402) is located on the connecting tooth (2) Between the movable teeth (3) and the adjacent movable teeth (3), the fixing strips (402) respectively close the openings of the two thread grooves (401) and the two thread grooves (401) are respectively located in the connecting teeth (2). ) and the movable teeth (3) and between the adjacent movable teeth (3), the fastening bolts (403) pass through the fixing bars (402) and are threadedly connected with the threaded grooves (401). 3 . The bucket with replaceable teeth for an excavator according to claim 2 , wherein the thread groove ( 401 ) is coaxially provided with an end portion of the fastening bolt ( 403 ). 4 . Tighten the spring (6). 4 . The bucket with replaceable teeth for an excavator according to claim 3 , wherein the bottom wall of the thread groove ( 401 ) faces the inner coaxially protruding limiting column of the abutting spring ( 6 ). 5 . (7), there is a gap between the limit post (7) and the end of the fastening bolt (403). The bucket with replaceable teeth for an excavator according to claim 3, wherein the fastening bolt (403) comprises a fastening screw (4032) and a fastening head (4031), The fastening head (4031) is located outside the threaded groove (401), and the fastening bolt (403) is close to a spring washer (8) sleeved at one end of the fastening head (4031). 6 . The bucket with replaceable teeth for an excavator according to claim 2 , wherein the bottom wall of the movable teeth ( 3 ) and a side wall close to the connecting teeth ( 2 ) are provided with In the positioning groove (9), the connecting teeth (2) and the movable teeth (3) are protruded with positioning blocks (10) toward the adjacent positioning grooves (9). 7 . The bucket with replaceable teeth for an excavator according to claim 6 , wherein a compression spring ( 11 ) is fixed on the bottom wall of the positioning groove ( 9 ) toward the opening direction of the positioning groove ( 9 ). 8 . A cleaning plate (12) is fixed at one end of the compression spring (11) away from the bottom wall of the positioning groove (9), and the cleaning plate (12) is slidingly connected with the inner wall of the positioning groove (9). 8 . The bucket with replaceable teeth for an excavator according to claim 7 , wherein the cleaning plate ( 12 ) is attached to the peripheral side wall of the positioning groove ( 9 ), and the cleaning plate (12) A scraper (13) is fixed toward the opening direction of the positioning groove (9). 9 . The bucket with replaceable bucket teeth for an excavator according to claim 1 , wherein a fixing groove is provided on the side of the bucket body ( 1 ) close to the connecting teeth ( 2 ). 10 . A fixing block (14) protrudes from the tooth (2) toward the fixing groove, and a fixing bolt (15) is arranged on the top of the fixing block (14), and the fixing bolt (15) passes through the bucket body (1) and the fixing bolt (15) in turn. block (14) and screw them together.

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