Limiting device for hopper lifting arm of self-loading vehicle

Abstract

The utility model relates to the technical field of hopper lifting arms, in particular to a hopper lifting arm limiting device of a self-loading truck, which comprises an adjusting structure and a truck hopper, the lower end of a lifting arm in the adjusting structure is connected with the rear end of a connecting frame through a second hinge shaft, and the upper end of the connecting frame is connected with a limiting cushion block through a limiting block. One side of the lifting arm is connected with a second electric hydraulic telescopic rod through a second connecting block, the upper end of the second electric hydraulic telescopic rod is connected with a third connecting block through a fourth hinged shaft in the truck hopper, and the inner side of the third connecting block is connected to the two sides of the feeding hopper through bolts; and a fourth hinged shaft connected with one side of a third connecting block can be connected with a second electric hydraulic telescopic rod, so that the second electric hydraulic telescopic rod can abut against the lower end of the feeding hopper, the feeding hopper can swing, and a fifth hinged shaft can be connected with a third electric hydraulic telescopic rod, so that the fourth electric hydraulic telescopic rod can swing.

Description

Technical Field

[0001] This utility model relates to the field of hopper lifting arm technology, specifically a self-loading hopper lifting arm limiting device. Background Technology

[0002] When a loader lifts its bucket, it raises the boom first and then retracts the arm. This allows the loader to move forward again and insert the bucket deeper into the material pile. Retracting the bucket without raising the boom would obstruct movement, which is less noticeable when scooping soft materials, but significantly different when scooping hard materials. When the boom and bucket cannot be retracted simultaneously, retracting the boom first allows the loader to move forward again and insert the bucket deeper into the material pile, scooping up more material into the bucket. Raising the boom first and then retracting the arm prevents the loader from tipping over.

[0003] However, due to manufacturing errors in self-loading vehicles, the lifting arm is likely to have insufficient or excessive lifting height after being raised. To solve this problem, a lifting arm limit device for self-loading vehicles is added.

[0004] Therefore, in order to solve the above problems, a self-loading hopper lifting arm limit device is proposed. Utility Model Content

[0005] The purpose of this utility model is to provide a limiting device for the lifting arm of a self-loading hopper, so as to solve the problem mentioned in the background art that the manufacturing error of the self-loading hopper in the prior art causes the lifting arm to likely have insufficient or excessive lifting height after lifting.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a self-loading hopper lifting arm limiting device, comprising: an adjusting structure and a hopper, wherein the lower end of the lifting arm in the adjusting structure is connected to the rear end of a connecting frame via a second hinge shaft, the upper end of the connecting frame is connected to a limiting block and a limiting pad via a limiting block, one side of the lifting arm is connected to a second electro-hydraulic telescopic rod via a second connecting block, the upper end of the second electro-hydraulic telescopic rod is connected to a third connecting block via a fourth hinge shaft in the hopper, and the inner side of the third connecting block is bolted to both sides of the feeding hopper.

[0007] Preferably, in the adjustment structure, the inner side of the lifting arm is bolted to a pad, the inner side of the pad is bolted to both sides of the connecting column, the outer side of the connecting column is bolted to the upper end of the first connecting block, the lower end of the first connecting block is connected to the first electro-hydraulic telescopic rod with a bearing, and the rear end of the first electro-hydraulic telescopic rod is connected to one side of the connecting frame with a first hinge.

[0008] Preferably, the two sides of the connecting frame are connected to the second hinge shaft with hinge pins, the upper side of the connecting frame is connected to the limiting block with bolts, the inside of the limiting block is connected to the limiting pad with bolts, the limiting pad is provided with metal washers and polyurethane, and the lifting arm is connected to one side of the limiting pad with bolts.

[0009] Preferably, the upper ends of the lifting arm are bolted to the inner side of the second connecting block, one side of the second connecting block is connected to the lower end of the second electro-hydraulic telescopic rod by a hinge pin, and the upper end of the lifting arm is connected to the third hinge pin by a hinge pin.

[0010] Preferably, the lower ends of the feed hopper in the hopper are bolted to the inner side of the third connecting block on both sides, and the fourth hinge shaft is bolted to one side of the third connecting block.

[0011] Preferably, a fifth hinge shaft is bolted to one side of the feed hopper, a third electro-hydraulic telescopic rod is connected to one side of the fifth hinge shaft with a hinge pin, the lower end of the third electro-hydraulic telescopic rod is connected to a sixth hinge shaft with a hinge pin, and a sliding plate is bolted to the inner side of the sixth hinge shaft.

[0012] Preferably, the feed hopper is bolted to one side of the chute, and the lower end of the feed hopper is bolted to the upper end of the discharge port.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. This utility model comprises a lifting arm, a pad, a connecting column, a first connecting block, a first electro-hydraulic telescopic rod, a first hinge shaft, a connecting frame, a second hinge shaft, a limiting block, a limiting pad, a second connecting block, a second electro-hydraulic telescopic rod, and a third hinge shaft. The pad can be connected to both sides of the connecting column to support it. The first connecting block and the first electro-hydraulic telescopic rod can support the lifting arm. The connecting frame can be connected to the vehicle frame. The limiting block can be connected to the limiting pad, and the limiting block has multiple threaded holes inside to adjust the height of the lifting arm. The second connecting block can be connected to the second electro-hydraulic telescopic rod to drive the feeding hopper to swing. The third hinge shaft allows the feeding hopper to swing.

[0015] 2. This utility model comprises a feeding hopper, a third connecting block, a fourth hinge shaft, a fifth hinge shaft, a third electro-hydraulic telescopic rod, a sixth hinge shaft, a sliding plate, a chute, and a discharge port. The feeding hopper collects materials. The fourth hinge shaft, connected to one side of the third connecting block, connects to the second electro-hydraulic telescopic rod, allowing the second electro-hydraulic telescopic rod to press against the lower end of the feeding hopper, enabling the feeding hopper to swing. The fifth hinge shaft connects to the third electro-hydraulic telescopic rod, allowing the fourth electro-hydraulic telescopic rod to swing. The fourth electro-hydraulic telescopic rod drives the sliding plate to move up and down, allowing the discharge port to be blocked or opened. The chute movably connects to the sliding plate, and the discharge port discharges materials. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0017] Figure 2 This is a side view of the structure of this utility model;

[0018] Figure 3 This is a front view schematic diagram of the structure of the limiting block of this utility model;

[0019] Figure 4 This is a side view sectional diagram of the structure of the limiting pad block of this utility model.

[0020] In the diagram: 1. Adjustment structure; 101. Lifting arm; 102. Pad; 103. Connecting column; 104. First connecting block; 105. First electro-hydraulic telescopic rod; 106. First hinge shaft; 107. Connecting frame; 108. Second hinge shaft; 109. Limiting block; 110. Limiting pad; 111. Second connecting block; 112. Second electro-hydraulic telescopic rod; 113. Third hinge shaft; 2. Car hopper; 201. Feed hopper; 202. Third connecting block; 203. Fourth hinge shaft; 204. Fifth hinge shaft; 205. Third electro-hydraulic telescopic rod; 206. Sixth hinge shaft; 207. Sliding plate; 208. Slide groove; 209. Discharge port. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1-4 One embodiment provided by this utility model:

[0023] The self-loading hopper lifting arm limiting device includes: an adjusting structure 1 and a hopper 2. The lower end of the lifting arm 101 in the adjusting structure 1 is connected to the rear end of the connecting frame 107 by a second hinge shaft 108. The upper end of the connecting frame 107 is connected to the limiting pad block 110 by a limiting block 109. One side of the lifting arm 101 is connected to the second electro-hydraulic telescopic rod 112 by a second connecting block 111. The upper end of the second electro-hydraulic telescopic rod 112 is connected to the third connecting block 202 by a fourth hinge shaft 203 in the hopper 2. The inner side of the third connecting block 202 is bolted to both sides of the feeding hopper 201.

[0024] Furthermore, in the adjustment structure 1, the inner side of the lifting arm 101 is bolted to the pad 102, the inner side of the pad 102 is bolted to both sides of the connecting column 103, the outer side of the connecting column 103 is bolted to the upper end of the first connecting block 104, the lower end of the first connecting block 104 is connected to the first electro-hydraulic telescopic rod 105 with a bearing, and the rear end of the first electro-hydraulic telescopic rod 105 is connected to one side of the connecting frame 107 with the first hinge shaft 106. The pad 102 is used to connect to both sides of the connecting column 103 so that the connecting column 103 can be supported. The first connecting block 104 and the first electro-hydraulic telescopic rod 105 are used to support the lifting arm 101, and the connecting frame 107 is used to connect to the vehicle frame.

[0025] Furthermore, the two sides of the connecting frame 107 are connected to the second hinge shaft 108 with hinge pins, and the upper side of the connecting frame 107 is connected to the limiting block 109 with bolts. The limiting block 109 is connected to the limiting pad 110 with bolts. The limiting pad 110 is provided with a metal washer and polyurethane inside. The lifting arm 101 is connected to one side of the limiting pad 110 with bolts. The limiting block 109 is used to connect with the limiting pad 110, and the limiting block 109 is provided with multiple threaded holes inside, so that the limiting block 109 can adjust the height of the lifting arm 101.

[0026] Furthermore, the upper ends of the lifting arm 101 are bolted to the inner sides of the second connecting block 111. One side of the second connecting block 111 is connected to the lower end of the second electro-hydraulic telescopic rod 112 by a hinge. The upper end of the lifting arm 101 is connected to the third hinge 113 by a hinge pin. The second connecting block 111 is used to connect with the second electro-hydraulic telescopic rod 112 so that the second electro-hydraulic telescopic rod 112 can drive the feed hopper 201 to swing. The third hinge 113 is used to enable the feed hopper 201 to swing.

[0027] Furthermore, the lower ends of the feed hopper 201 in the hopper 2 are bolted to the inner side of the third connecting block 202 on both sides. The fourth hinge shaft 203 is bolted to one side of the third connecting block 202. The feed hopper 201 is used to collect materials. The fourth hinge shaft 203 connected to one side of the third connecting block 202 is used to connect to the second electro-hydraulic telescopic rod 112, so that the second electro-hydraulic telescopic rod 112 can hold the lower end of the feed hopper 201, so that the feed hopper 201 can swing.

[0028] Furthermore, the fifth hinge shaft 204 is bolted to one side of the feed hopper 201, and the third electro-hydraulic telescopic rod 205 is connected to one side of the fifth hinge shaft 204 with a hinge pin. The lower end of the third electro-hydraulic telescopic rod 205 is connected to the sixth hinge shaft 206 with a hinge pin. The sliding plate 207 is bolted to the inner side of the sixth hinge shaft 206. The fifth hinge shaft 204 is used to connect with the third electro-hydraulic telescopic rod 205, so that the fourth electro-hydraulic telescopic rod 205 can swing. The fourth electro-hydraulic telescopic rod 205 is used to drive the sliding plate 207 to move up and down, so that the discharge port 209 can be blocked or opened.

[0029] Furthermore, the feed hopper 201 is bolted to one side of the slide 208, and the lower end of the feed hopper 201 is bolted to the upper end of the discharge port 209. The slide 208 is used to movably connect the sliding plate 207, and the discharge port 209 is used to discharge materials.

[0030] Working principle: When in use, first install the connecting frame 107 on the upper end of the vehicle frame, then use bolts to connect the limiting block 109 and the limiting pad 110. Then, activate the second electric hydraulic telescopic rod 112 to make the feeding hopper 201 swing and level with the ground. Then, use the feeding hopper 201 to scoop in the required material, and activate the second electric hydraulic telescopic rod 112 to make the feeding port of the feeding hopper 201 face upward so that the material will not easily leak. Then, start the vehicle to transport the material to the required position, and activate the third electric hydraulic telescopic rod 205 to make the sliding plate 207 slide upward so that the material can be discharged from the discharge port 209.

[0031] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any way. Those skilled in the art can readily implement this utility model based on the accompanying drawings and the above description. However, any modifications, alterations, or equivalent variations made by those skilled in the art without departing from the scope of the utility model's technical solution, utilizing the disclosed technical content, are considered equivalent embodiments of this utility model. Furthermore, any equivalent changes, alterations, or variations made to the above embodiments based on the essential technology of this utility model are still within the protection scope of this utility model's technical solution.

Claims

1. A self-loading vehicle hopper lift arm limiter device comprising: The adjusting structure (1) and the hopper (2) are characterized in that: the lower end of the lifting arm (101) in the adjusting structure (1) is connected to the rear end of the connecting frame (107) by a second hinge shaft (108), the upper end of the connecting frame (107) is connected to the limiting pad (110) by a limiting block (109), one side of the lifting arm (101) is connected to the second electro-hydraulic telescopic rod (112) by a second connecting block (111), the upper end of the second electro-hydraulic telescopic rod (112) is connected to the third connecting block (202) by a fourth hinge shaft (203) in the hopper (2), and the inner side of the third connecting block (202) is bolted to both sides of the feed hopper (201).

2. The self-loading vehicle hopper lift arm stop device of claim 1, wherein: The inner side of the lifting arm (101) in the adjustment structure (1) is bolted to the pad (102), the inner side of the pad (102) is bolted to both sides of the connecting column (103), the outer side of the connecting column (103) is bolted to the upper end of the first connecting block (104), the lower end of the first connecting block (104) is connected to the first electro-hydraulic telescopic rod (105) with a bearing, and the rear end of the first electro-hydraulic telescopic rod (105) is connected to one side of the connecting frame (107) with a first hinge shaft (106).

3. The self-loading carriage hopper lift arm stop device of claim 2, wherein: The connecting frame (107) is connected to the second hinge shaft (108) on both sides by hinge pins. The upper end of the connecting frame (107) is connected to the limiting block (109) by bolts. The limiting block (109) is connected to the limiting pad (110) by bolts. The limiting pad (110) is provided with a metal washer and polyurethane inside. The lifting arm (101) is connected to one side of the limiting pad (110) by bolts.

4. The self-loading carriage hopper lift arm stop device of claim 3, wherein: The upper ends of the lifting arm (101) are connected to the inner side of the second connecting block (111) by bolts on both sides. The second connecting block (111) is connected to the lower end of the second electric hydraulic telescopic rod (112) by a hinge shaft on one side. The upper end of the lifting arm (101) is connected to the third hinge shaft (113) by a hinge pin.

5. The self-loading carriage hopper lift arm stop device of claim 1, wherein: The lower ends of the feed hopper (201) in the hopper (2) are connected to the inner side of the third connecting block (202) by bolts on both sides, and the fourth hinge shaft (203) is connected to one side of the third connecting block (202) by bolts.

6. The self-loading carriage hopper lift arm stop device of claim 5, wherein: The feed hopper (201) is bolted to one side of the fifth hinge shaft (204), and the fifth hinge shaft (204) is bolted to one side of the third electric hydraulic telescopic rod (205). The lower end of the third electric hydraulic telescopic rod (205) is bolted to the sixth hinge shaft (206), and the inner side of the sixth hinge shaft (206) is bolted to the sliding plate (207).

7. The self-loading carriage hopper lift arm stop device of claim 6, wherein: The feed hopper (201) is bolted to one side of the slide groove (208), and the lower end of the feed hopper (201) is bolted to the upper end of the discharge port (209).

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