Compression block grab bucket

Abstract

The utility model provides a compressed block grab bucket, which belongs to the field of machinery and comprises a connecting seat, a support, a left grabhook and a right grabhook, the upper end of the support is connected with the lower end of the connecting seat, the left side of the lower end of the support is hinged with the left grabhook through a first pin shaft, the right side of the lower end of the support is hinged with the right grabhook through a second pin shaft, and the left grabhook and the right grabhook are oppositely arranged. A grabhook oil cylinder is arranged between the left grabhook and the right grabhook, the left end of the grabhook oil cylinder is hinged to the left grabhook through a third pin shaft, the right end of the grabhook oil cylinder is hinged to the right grabhook through a fourth pin shaft, and the grabhook oil cylinder is arranged on the inner side of the support. According to the grab bucket, a sling does not need to penetrate through the bottom of the grab bucket, and rope threading and hooking are not needed, so that auxiliary operation of workers is not needed, the probability of danger is reduced, the loading and unloading efficiency is high, and loading and unloading are easy.

Description

Technical Field

[0001] The utility model relates to the field of machinery, in particular to a compressed bag grab. Background Art

[0002] In the renewable resource recycling industry, before transporting items, they are usually classified and compressed into blocks, and then loaded and unloaded for transportation to save space and facilitate loading and unloading. The common loading and unloading of compressed blocks is to pass a sling through the bottom of the compressed block and lift it with a crane. Due to the large size of compressed blocks (non-steel), it is very inconvenient to thread ropes and hooks. When the compressed blocks are stacked, there are safety hazards for the workers, and the work efficiency is low. Therefore, a compressed block grab is needed. Utility Model Content

[0003] The utility model aims to provide a compressed package grab bucket to solve the technical problem of low loading and unloading efficiency of existing compressed packages. The grab bucket provided in the utility model can load and unload compressed packages, has high loading and unloading efficiency, is easy to load and unload vehicles, does not require the assistance of staff, and ensures the safety of staff.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0005] A compressed bag grab comprises a connecting seat, a bracket, a left gripper and a right gripper, wherein the upper end of the bracket is connected to the lower end of the connecting seat, the left side of the lower end of the bracket is hinged to the left gripper through a first pin shaft, the right side of the lower end of the bracket is hinged to the right gripper through a second pin shaft, the left gripper and the right gripper are arranged opposite to each other, a gripper cylinder is arranged between the left gripper and the right gripper, the left end of the gripper cylinder is hinged to the left gripper through a third pin shaft, the right end of the gripper cylinder is hinged to the right gripper through a fourth pin shaft, and the gripper cylinder is arranged on the inner side of the bracket.

[0006] Furthermore, a plurality of connection holes are respectively arranged on both sides of the upper end of the connection seat, and the connection seat is connected to the front end of the external excavator working arm through the connection holes, and a hydraulic rotary motor and a hydraulic control valve group are respectively arranged on the inner side of the connection seat.

[0007] Furthermore, the hydraulic rotary motor is connected to the connecting seat, the output shaft of the hydraulic rotary motor is arranged downward, and a gear is arranged on the output shaft of the hydraulic rotary motor, and the gear is meshingly connected with the rotary bearing.

[0008] Furthermore, the slewing bearing is arranged between the connecting seat and the bracket, the inner ring of the slewing bearing is connected to the connecting seat through external bolts, and the outer ring of the slewing bearing is connected to the bracket through external bolts.

[0009] Furthermore, a center swivel joint is arranged in the middle of the inner side of the swivel bearing, the upper end of the center swivel joint is connected to the connecting seat, and the upper end of the center swivel joint is connected to the hydraulic control valve group through an oil pipe, and the lower end of the center swivel joint is connected to the gripper cylinder through an oil pipe.

[0010] Furthermore, the left gripper includes a first left gripping finger and a second left gripping finger, the upper ends of the first left gripping finger and the second left gripping finger are respectively hinged to the bracket through a first pin shaft, a left connecting plate is arranged at the upper part between the first left gripping finger and the second left gripping finger, a first left round rod is arranged at the lower part between the first left gripping finger and the second left gripping finger, and a left protective plate is arranged at the lower end between the first left gripping finger and the second left gripping finger.

[0011] Furthermore, a second left round rod is laterally arranged on the left connecting plate, and both ends of the second left round rod are respectively connected to the first left grasping finger and the second left grasping finger, and a first left triangular reinforcement plate and a second left triangular reinforcement plate are respectively vertically arranged on the left connecting plate, the upper ends of the first left triangular reinforcement plate and the second left triangular reinforcement plate are hinged to the left end of the grasping cylinder through a third pin shaft, the lower end of the first left triangular reinforcement plate is connected to the first left grasping finger, and the lower end of the second left triangular reinforcement plate is connected to the second left grasping finger.

[0012] Furthermore, the right gripper includes a first right gripper finger and a second right gripper finger, the upper ends of the first right gripper finger and the second right gripper finger are respectively hinged to the bracket through a second pin shaft, a right connecting plate is arranged at the upper part between the first right gripper finger and the second right gripper finger, a second right round rod is arranged at the lower part between the first right gripper finger and the second right gripper finger, and a right protective plate is arranged at the lower end between the first right gripper finger and the second right gripper finger.

[0013] Furthermore, a first right round rod is transversely arranged on the right connecting plate, and both ends of the first right round rod are respectively connected to the first right grasping finger and the second right grasping finger, and a first right reinforcing plate and a second right reinforcing plate are respectively vertically arranged on the right connecting plate, and the upper ends of the first right reinforcing plate and the second right reinforcing plate are hinged to the right end of the grasping claw cylinder (5) through a fourth pin shaft, and the lower end of the first right reinforcing plate is connected to the first right grasping finger, and the lower end of the second right reinforcing plate is connected to the second right grasping finger.

[0014] Furthermore, a first connecting rod and a second connecting rod are respectively provided on both sides of the gripper cylinder, and the first connecting rod and the second connecting rod are respectively arranged on the inner side of the bracket, the left end of the first connecting rod is hinged to the upper end between the first left gripper and the first left triangular reinforcement plate through a fifth pin shaft, the right end of the first connecting rod is hinged to the upper end between the first right gripper and the first right reinforcement plate through a fourth pin shaft, the left end of the second connecting rod is hinged to the upper end between the second left gripper and the second left triangular reinforcement plate through a sixth pin shaft, and the right end of the second connecting rod is hinged to the upper end between the second right gripper and the second right reinforcement plate through a fourth pin shaft.

[0015] The utility model has the following beneficial effects due to the adoption of the above technical solution:

[0016] 1. The inner clamping surfaces of the left and right grippers of the grab bucket of the utility model are shaped by straight lines intersecting with arc transition lines that are more in line with the square shape. After clamping, the contact area with the compressed package can be increased while maintaining the shape of the package. The lower ends of the left and right grippers are designed with a flat plate to increase the contact area with the compressed package and reduce the damage and deformation of the compressed package caused by clamping.

[0017] 2. The grab bucket provided in the utility model does not need to be passed through the bottom with a sling, nor does it need to be threaded with a rope or a hook, so there is no need for staff to assist in the operation, which reduces the probability of danger, has high loading and unloading efficiency, and is easy to load and unload. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the grab bucket of the utility model;

[0019] Figure 2 It is the internal schematic diagram of the connection seat of the utility model;

[0020] Figure 3 It is a schematic diagram of the connection between the left gripper and the right gripper of the utility model;

[0021] Figure 4 It is a schematic diagram of Embodiment 1 of the present utility model;

[0022] Figure 5 It is a front view of embodiment 1 of the utility model.

[0023] In the accompanying drawings, 1-connecting seat, 11-connecting hole, 2-bracket, 21-first pin, 22-second pin, 23-third pin, 24-fourth pin, 25-fifth pin, 26-sixth pin, 3-left gripper, 31-first left gripper finger, 32-second left gripper finger, 34-first left round rod, 35-left protective plate, 36-second left round rod, 37-first left triangular reinforcement plate, 38-second left triangular reinforcement plate, 4-right gripper, 41-first right gripping finger, 42-second right gripping finger, 43-right connecting plate, 44-second right round rod, 45-right protective plate, 46-first right round rod, 47-first right reinforcing plate, 48-second right reinforcing plate, 5-gripper cylinder, 6-first connecting rod, 61-second connecting rod, 7-hydraulic slewing motor, 71-gear, 8-slewing bearing, 9-hydraulic control valve group, 91-oil pipe, 10-center slewing joint, 100-compression block. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail with reference to the accompanying drawings and preferred embodiments. However, it should be noted that many details listed in the specification are only for the purpose of enabling readers to have a thorough understanding of one or more aspects of the utility model, and these aspects of the utility model can be realized even without these specific details.

[0025] like Figure 1-3 As shown, a compressed bag grab includes a connecting seat 1, a bracket 2, a left gripper 3 and a right gripper 4. The upper end of the bracket 2 is connected to the lower end of the connecting seat 1. The left side of the lower end of the bracket 2 is hinged to the left gripper 3 through a first pin 21, and the right side of the lower end of the bracket 2 is hinged to the right gripper 4 through a second pin 22. The left gripper 3 and the right gripper 4 are arranged opposite to each other. A gripper cylinder 5 is arranged between the left gripper 3 and the right gripper 4. The left end of the gripper cylinder 5 is hinged to the left gripper 3 through a third pin 23, and the right end of the gripper cylinder 5 is hinged to the right gripper 4 through a fourth pin 24. The gripper cylinder 5 is arranged on the inner side of the bracket 2. The gripper cylinder 5 drives the left gripper 3 and the right gripper 4 to realize the retraction or opening of the left gripper 3 and the right gripper 4. Visual windows are arranged on the front and rear sides of the bracket 2 for observing the situation inside the bracket 2. The grab bucket provided in the utility model does not need to be passed through the bottom by a sling, and does not need to be threaded with a rope or a hook, so the auxiliary operation of staff is not required, the probability of danger is reduced, the loading and unloading efficiency is high, and the vehicle is easy to load and unload.

[0026] like Figure 2 As shown, a plurality of connection holes 11 are respectively arranged on both sides of the upper end of the connection seat 1, and the connection seat 1 is connected to the front end of the external excavator working arm through the connection holes 11, and a hydraulic slewing motor 7 and a hydraulic control valve group 9 are respectively arranged on the inner side of the connection seat 1. The hydraulic slewing motor 7 is connected to the connection seat 1 to ensure the stability of the hydraulic slewing motor 7 during the working process. The output shaft of the hydraulic slewing motor 7 is arranged downward, and a gear 71 is arranged on the output shaft of the hydraulic slewing motor 7. The gear 71 is meshed and connected with a slewing bearing 8. The hydraulic slewing motor 7 drives the gear 71 to rotate, so that the slewing bearing 8 meshed with the gear 71 rotates with it, so that the bracket 2 and the left gripper 3 and the right gripper 4 perform a slewing motion, ensuring 360-degree rotation and accurate angle control. The slewing bearing 8 is arranged between the connection seat 1 and the bracket 2, and the inner ring of the slewing bearing 8 is connected to the connection seat 1 by external bolts, and the outer ring of the slewing bearing 8 is connected to the bracket 2 by external bolts. A center swivel joint 10 is provided in the middle of the inner side of the swivel bearing 8, the upper end of the center swivel joint 10 is connected to the connecting seat 1, and the upper end of the center swivel joint 10 is connected to the hydraulic control valve group 9 through the oil pipe 91, and the lower end of the center swivel joint 10 is connected to the gripper cylinder 5 through the oil pipe 91.

[0027] like Figure 3As shown, the left gripper 3 includes a first left gripping finger 31 and a second left gripping finger 32, the upper ends of the first left gripping finger 31 and the second left gripping finger 32 are respectively hinged to the bracket 2 through the first pin shaft 21, a left connecting plate (not shown in the figure) is arranged at the upper part between the first left gripping finger 31 and the second left gripping finger 32, a first left round rod 34 is arranged at the lower part between the first left gripping finger 31 and the second left gripping finger 32, and a left protective plate 35 is arranged at the lower end between the first left gripping finger 31 and the second left gripping finger 32. The first left gripping finger 31 and the second left gripping finger 32 are arranged in an arc-shaped structure, and the left protective plate 35 adopts a flat plate design to increase the contact area with the compressed package block, thereby reducing the damage and deformation of the compressed package block caused by clamping. A second left round rod 36 is laterally arranged on the left connecting plate, and both ends of the second left round rod 36 are respectively connected to the first left grasping finger 31 and the second left grasping finger 32, and a first left triangular reinforcement plate 37 and a second left triangular reinforcement plate 38 are respectively vertically arranged on the left connecting plate, the upper ends of the first left triangular reinforcement plate 37 and the second left triangular reinforcement plate 38 are hinged to the left end of the grasping cylinder 5 through the third pin shaft 23, the lower end of the first left triangular reinforcement plate 37 is connected to the first left grasping finger 31, and the lower end of the second left triangular reinforcement plate 38 is connected to the second left grasping finger 32. The right gripper 4 includes a first right gripping finger 41 and a second right gripping finger 42, the upper ends of the first right gripping finger 41 and the second right gripping finger 42 are respectively hinged to the bracket 2 through the second pin shaft 22, a right connecting plate 43 is arranged at the upper part between the first right gripping finger 41 and the second right gripping finger 42, a second right round rod 44 is arranged at the lower part between the first right gripping finger 41 and the second right gripping finger 42 to ensure that the first right gripping finger 41 and the second right gripping finger 42 are firmly connected, and a right protective plate 45 is arranged at the lower end between the first right gripping finger 41 and the second right gripping finger 42. The first right gripping finger 41 and the second right gripping finger 42 are arranged in an arc-shaped structure, and the right protective plate 45 adopts a flat plate design to increase the contact area with the compressed package block, thereby reducing the damage and deformation of the compressed package block caused by clamping. A first right round rod 46 is horizontally arranged on the right connecting plate 43, and the two ends of the first right round rod 46 are respectively connected to the first right grasping finger 41 and the second right grasping finger 42. A first right reinforcing plate 47 and a second right reinforcing plate 48 are respectively vertically arranged on the right connecting plate 43. The upper ends of the first right reinforcing plate 47 and the second right reinforcing plate 48 are hinged to the right end of the gripper cylinder 5 through the fourth pin 24. The lower end of the first right reinforcing plate 47 is connected to the first right grasping finger 41, and the lower end of the second right reinforcing plate 48 is connected to the second right grasping finger 42. In the utility model, the gripper is set to be connected with two grasping fingers, which can reduce the weight of the gripper. At the same time, a protective plate is set at the lower end of the grasping finger. The protective plate adopts a flat plate design to increase the contact area with the compressed package block, and reduce the damage and deformation of the compressed package block caused by clamping. The inner clamping surface of the gripper adopts a straight line intersecting arc transition line shape that is more in line with the square. After clamping, it can increase the contact area with the compressed package block and maintain the shape of the package block.

[0028] like Figure 1 and 2As shown, the first connecting rod 6 and the second connecting rod 61 are respectively arranged on both sides of the gripper cylinder 5, and the first connecting rod 6 and the second connecting rod 61 are respectively arranged on the inner side of the bracket 2, the left end of the first connecting rod 6 is hinged to the upper end between the first left gripper finger 31 and the first left triangular reinforcing plate 37 through the fifth pin 25, the right end of the first connecting rod 6 is hinged to the upper end between the first right gripper finger 41 and the first right reinforcing plate 47 through the fourth pin 24, the left end of the second connecting rod 61 is hinged to the upper end between the second left gripper finger 32 and the second left triangular reinforcing plate 38 through the sixth pin 26, and the right end of the second connecting rod 61 is hinged to the upper end between the second right gripper finger 42 and the second right reinforcing plate 48 through the fourth pin 24. The first connecting rod 6 and the second connecting rod 61 can ensure that the left gripper 3 and the right gripper 4 move synchronously when they are retracted or opened.

[0029] The utility model adopts the hydraulic power and hydraulic control of the excavator, and the grab bucket clamps the compressed packages for loading and unloading operations. It has a wide operating range and is flexible and maneuverable. It does not need a sling to pass through the bottom, does not have the inconvenience of threading ropes and hooks, does not require auxiliary personnel to assist in the operation, reduces the probability of danger, has high efficiency, and is easier to load and unload vehicles.

[0030] Example 1

[0031] The connection seat 1 of the grab bucket is connected to the front end of the external excavator working arm through the connection hole 11, and the hydraulic power of the excavator is connected to the hydraulic control valve group 9, and a part of it reaches the claw cylinder 5 through the central swivel joint 10, such as Figure 4-5 As shown, the gripper cylinder 5 drives the left gripper 3 and the right gripper 4 to close or open the left gripper 3 and the right gripper 4, so that the left gripper 3 and the right gripper 4 can grab or release the compressed package 100. The inner clamping surface of the left gripper and the right gripper adopts a straight line intersecting arc transition line shape that is more in line with the square. After clamping, the contact area of ​​the compressed package can be increased while maintaining the shape of the package; the lower ends of the left gripper and the right gripper adopt a flat plate design to increase the contact area with the compressed package and reduce the damage and deformation of the compressed package caused by clamping. The other part enters the hydraulic rotary motor 7, which drives the gear 71 to rotate, so that the rotary bearing 8 meshing with the gear 71 rotates with it, so that the bracket 2 and the left gripper 3 and the right gripper 4 perform a rotary motion, so that the bracket 2 and the left gripper 3 and the right gripper 4 can rotate 360 ​​degrees, and accurately control the angle of the left gripper 3 and the right gripper 4 to grab the compressed package 100.

[0032] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A compressed bale grab bucket, characterized by: The invention comprises a connecting seat (1), a bracket (2), a left gripper (3) and a right gripper (4); the upper end of the bracket (2) is connected to the lower end of the connecting seat (1); the left side of the lower end of the bracket (2) is hinged to the left gripper (3) through a first pin shaft (21); the right side of the lower end of the bracket (2) is hinged to the right gripper (4) through a second pin shaft (22); the left gripper (3) and the right gripper (4) are arranged opposite to each other; a gripper oil cylinder (5) is arranged between the left gripper (3) and the right gripper (4); the left end of the gripper oil cylinder (5) is hinged to the left gripper (3) through a third pin shaft (23); the right end of the gripper oil cylinder (5) is hinged to the right gripper (4) through a fourth pin shaft (24); and the gripper oil cylinder (5) is arranged on the inner side of the bracket (2).

2. A compressed bag grab bucket according to claim 1, characterized in that: A plurality of connection holes (11) are respectively arranged on both sides of the upper end of the connection seat (1); the connection seat (1) is connected to the front end of the working arm of an external excavator through the connection holes (11); and a hydraulic rotary motor (7) and a hydraulic control valve group (9) are respectively arranged on the inner side of the connection seat (1).

3. A compressed bag grab bucket according to claim 2, characterized in that: The hydraulic rotary motor (7) is connected to the connecting seat (1), the output shaft of the hydraulic rotary motor (7) is arranged downward, and a gear (71) is arranged on the output shaft of the hydraulic rotary motor (7), and the gear (71) is meshingly connected with the rotary bearing (8).

4. A compressed bag grab bucket according to claim 3, characterized in that: The slewing bearing (8) is arranged between the connecting seat (1) and the bracket (2); the inner ring of the slewing bearing (8) is connected to the connecting seat (1) via external bolts; and the outer ring of the slewing bearing (8) is connected to the bracket (2) via external bolts.

5. The compressed bag grab bucket according to claim 3, characterized in that: A central swivel joint (10) is provided in the middle of the inner side of the swivel bearing (8), the upper end of the central swivel joint (10) is connected to the connecting seat (1), the upper end of the central swivel joint (10) is connected to the hydraulic control valve group (9) through an oil pipe (91), and the lower end of the central swivel joint (10) is connected to the claw oil cylinder (5) through an oil pipe (91).

6. A compressed bag grab bucket according to claim 1, characterized in that: The left gripper (3) comprises a first left gripping finger (31) and a second left gripping finger (32); the upper ends of the first left gripping finger (31) and the second left gripping finger (32) are respectively hinged to the bracket (2) through a first pin shaft (21); a left connecting plate is arranged at the upper part between the first left gripping finger (31) and the second left gripping finger (32); a first left round rod (34) is arranged at the lower part between the first left gripping finger (31) and the second left gripping finger (32); and a left protective plate (35) is arranged at the lower end between the first left gripping finger (31) and the second left gripping finger (32).

7. A compressed bag grab bucket according to claim 6, characterized in that: A second left round rod (36) is transversely arranged on the left connecting plate, and two ends of the second left round rod (36) are respectively connected to the first left grasping finger (31) and the second left grasping finger (32). A first left triangular reinforcing plate (37) and a second left triangular reinforcing plate (38) are respectively vertically arranged on the left connecting plate. The upper ends of the first left triangular reinforcing plate (37) and the second left triangular reinforcing plate (38) are hinged to the left end of the grasping claw cylinder (5) through a third pin shaft (23). The lower end of the first left triangular reinforcing plate (37) is connected to the first left grasping finger (31), and the lower end of the second left triangular reinforcing plate (38) is connected to the second left grasping finger (32).

8. The compressed bale grab bucket according to claim 1, characterized in that: The right gripper (4) comprises a first right gripping finger (41) and a second right gripping finger (42); the upper ends of the first right gripping finger (41) and the second right gripping finger (42) are respectively hinged to the bracket (2) through a second pin shaft (22); a right connecting plate (43) is arranged at the upper part between the first right gripping finger (41) and the second right gripping finger (42); a second right round rod (44) is arranged at the lower part between the first right gripping finger (41) and the second right gripping finger (42); and a right protective plate (45) is arranged at the lower end between the first right gripping finger (41) and the second right gripping finger (42).

9. A compressed bag grab bucket according to claim 8, characterized in that: A first right round rod (46) is horizontally arranged on the right connecting plate (43), and the two ends of the first right round rod (46) are respectively connected to the first right grabbing finger (41) and the second right grabbing finger (42). A first right reinforcing plate (47) and a second right reinforcing plate (48) are respectively vertically arranged on the right connecting plate (43). The upper ends of the first right reinforcing plate (47) and the second right reinforcing plate (48) are hinged to the right end of the grabbing claw cylinder (5) through a fourth pin shaft (24). The lower end of the first right reinforcing plate (47) is connected to the first right grabbing finger (41), and the lower end of the second right reinforcing plate (48) is connected to the second right grabbing finger (42).

10. The compressed bale grab bucket according to claim 1, characterized in that: A first connecting rod (6) and a second connecting rod (61) are respectively arranged on both sides of the gripper oil cylinder (5). The first connecting rod (6) and the second connecting rod (61) are respectively arranged on the inner side of the bracket (2). The left end of the first connecting rod (6) is hinged to the upper end between the first left gripping finger (31) and the first left triangular reinforcing plate (37) through a fifth pin shaft (25). The right end of the first connecting rod (6) is hinged to the upper end between the first right gripping finger (41) and the first right reinforcing plate (47) through a fourth pin shaft (24). The left end of the second connecting rod (61) is hinged to the upper end between the second left gripping finger (32) and the second left triangular reinforcing plate (38) through a sixth pin shaft (26). The right end of the second connecting rod (61) is hinged to the upper end between the second right gripping finger (42) and the second right reinforcing plate (48) through a fourth pin shaft (24).

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