Angle-adjustable gripper of steel gripping machine

Abstract

The utility model relates to the technical field of steel grabbing machines, and discloses an angle-adjustable steel grabbing machine gripper which comprises a connecting seat case, steel claws are hinged to the two sides of a connecting seat, a support is welded to the top end of the connecting seat, a lifting plate is connected to the support in a sliding mode, and the lifting plate is driven by a hydraulic cylinder to ascend and descend. Connecting plates are welded to the two ends of the lifting plate, first connecting rods are hinged to the two sides of the connecting plates through first shaft rods, and second connecting rods are hinged to the bottoms of the first connecting rods through second shaft rods; when the steel claw is supported through the connecting base, the hydraulic cylinder can be supported and located at the top end of the steel claw, the connecting base and the support can protect the hydraulic cylinder, when the steel claw grabs an object, the hydraulic cylinder can be prevented from colliding with the object, the hydraulic cylinder drives the lifting plate to descend, and the first connecting rod and the second connecting rod can transmit pressure; and the effects of toggle reinforcement and lever reinforcement can be achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of steel grabbers, in particular to a steel grabber with adjustable angle. Background Art

[0002] A steel grabber refers to a machine for grabbing steel materials. It is generally evolved from a hydraulic excavator. The large and small arms of a steel grabber are commonly known as "grabbing arms". They are generally longer, and their front end is a steel grabber, also known as a grabber, also called a plum blossom-type hydraulic grab or an orange-peel grab. Its main function is to grab and load various materials such as scrap metal, industrial waste, gravel, construction waste, and domestic waste. It is divided into original steel grabbers and assembled steel grabbers.

[0003] Its application number is "CN202321326273.6". The "angle-adjustable steel grabber gripper" disclosed in it "comprises a clamping mechanism and an angle adjustment mechanism; the clamping mechanism comprises an arm frame, and two groups of first pins are symmetrically connected on both sides of the arm frame. Two groups of clamping jaws are symmetrically installed on one group of output ends of the two groups of first pins, and two groups of rotating swing arms are symmetrically installed on the other group of output ends of the two groups of first pins, and the number of each group of rotating swing arms is two, and an arm pin rod is installed on the top of the clamping jaw of the clamp, and the arm pin rod is fixedly connected to the rotating swing arm, and one group of output ends of the two groups of rotating swing arms are connected to an arm shaft sleeve, and the two groups of rotating swing arms are connected to the hydraulic cylinder through the arm shaft sleeve." In the utility model, by utilizing the angle adjustment mechanism to adjust the left and right swing of the gripper angle, the gripping position of the gripper can be flexibly adjusted. Subsequently, under the hydraulic clamping of the clamping claw mechanism, when the staff drives the steel grabber to grab industrial waste, there is no need to adjust the gripping position of the steel grabber, and scattered industrial waste can be grabbed. On the one hand, it can improve the convenience of grabbing industrial waste and improve the grabbing efficiency. On the other hand, it can save grabbing time and save work costs.

[0004] However, the above method still has the following defects: the clamping jaws can be driven by the hydraulic cylinder, but the hydraulic cylinder needs to be installed between the two clamping jaws. When grabbing an object, it is easy to cause a collision between the hydraulic cylinder and the object, and it is difficult to keep the hydraulic cylinder away from the object and provide protection for it. In addition, the pressure of the hydraulic cylinder is directly transmitted to the clamping jaws, and the clamping force on the object is relatively small. Utility Model Content

[0005] The purpose of the utility model is to provide an angle-adjustable steel grabber to solve the problem in the above-mentioned background technology that when grabbing an object, it is easy to cause a collision between the hydraulic cylinder and the object, and the pressure of the hydraulic cylinder is directly transmitted to the clamping claw, resulting in a small clamping force on the object.

[0006] The utility model provides the following technical solutions: an angle-adjustable steel grabber, comprising a connecting seat chassis, both sides of the connecting seat are hinged with steel claws, the top of the connecting seat is welded with a bracket, the bracket is slidably connected with a lifting plate, the lifting plate is driven by a hydraulic cylinder to be lifted and lowered, connecting plates are welded at both ends of the lifting plate, both sides of the connecting plate are hinged with a connecting rod 1 through an axle rod 1, the bottom of the connecting rod 1 is hinged with a connecting rod 2 through an axle rod 2, the bottom of the connecting rod 2 is welded to the steel claw, the top of the bracket is rotatably connected to the chassis through a support shaft, a worm gear is fixedly provided on the surface of the support shaft, and the worm gear is driven by a driving assembly to rotate inside the chassis, and a mounting group is provided at the top of the chassis.

[0007] As a preferred technical solution of the utility model, sliders are fixedly provided on both sides of the lifting plate, sliding grooves are opened on the inner walls on both sides of the bracket, the sliders are slidably connected to the sliding grooves, the middle part of the bottom end of the lifting plate is fixedly connected to the hydraulic rod of the hydraulic cylinder, and the bottom end of the hydraulic cylinder is fixedly connected to the middle part of the top end of the connecting seat.

[0008] As a preferred technical solution of the utility model, both sides of the connecting plate and the top of connecting rod one are rotatably connected to connecting rod one through axial holes, and the bottom of connecting rod one and the top of connecting rod two are rotatably connected to connecting rod two through axial holes.

[0009] As a preferred technical solution of the utility model, the driving assembly includes a motor and a worm, the output shaft of the motor is connected to the worm, the worm is rotationally connected to the inner wall of the chassis, and the worm is meshingly connected to the worm wheel.

[0010] As a preferred technical solution of the utility model, an angle iron is fixedly connected to the bottom end of the motor, a rib plate is welded to the bottom end of the angle iron, and one side of the angle iron and one side of the rib plate are both welded to the chassis.

[0011] As a preferred technical solution of the utility model, a support plate is welded to the bottom end of the support shaft, and the bottom end of the support plate is fixedly connected to the middle part of the top end of the bracket by bolts.

[0012] As a preferred technical solution of the utility model, the mounting assembly includes a column and a mounting plate, the bottom end of the column is welded to the middle of the top end of the chassis, a plurality of reinforcing plates are welded to the surface of the column, a mounting plate is welded to the top end of the column, and a plurality of mounting holes are opened on the surface of the mounting plate.

[0013] As a preferred technical solution of the utility model, a maintenance passage is provided on one side of the chassis, and a maintenance cover is provided on the surface of the maintenance passage.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] The angle-adjustable steel grabber can support the hydraulic cylinder when the steel claw is supported by the connecting seat, so that the hydraulic cylinder can be located at the top of the steel claw. The connecting seat and the bracket can provide protection for the hydraulic cylinder. When the steel claw grabs an object, it can prevent the hydraulic cylinder from colliding with the object and can keep the hydraulic cylinder away from the object. The rigid connection between the connecting rod one and the connecting plate and the connecting rod two is avoided by the shaft rod one and the shaft rod two. The lifting plate is driven down by the hydraulic cylinder. The connecting rod one and the connecting rod two can transmit pressure, which avoids the force of the hydraulic cylinder being directly transmitted to the steel claw, and can play the effect of elbow force amplification and lever force amplification, so that the two steel claws can clamp the object. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is one of the structural diagrams of the utility model;

[0017] Figure 2 This is the second structural diagram of the utility model;

[0018] Figure 3 It is a schematic diagram of the explosion structure of the utility model;

[0019] Figure 4 It is a schematic diagram of the structure inside the chassis of the utility model;

[0020] Figure 5 It is a structural schematic diagram of the lifting plate of the utility model.

[0021] In the figure: 1. connecting seat; 2. steel claw; 3. bracket; 4. slide; 5. hydraulic cylinder; 6. lifting plate; 7. connecting plate; 8. slider; 9. shaft hole; 10. shaft rod 1; 11. connecting rod 1; 12. shaft rod 2; 13. connecting rod 2; 14. chassis; 15. support shaft; 16. worm gear; 17. drive assembly; 1701. motor; 1702. worm; 1703. angle iron; 1704. rib plate; 18. installation assembly; 1801. column; 1802. reinforcement plate; 1803. installation plate; 1804. installation hole; 19. maintenance channel; 20. maintenance cover; 21. support plate. DETAILED DESCRIPTION

[0022] The present invention will be further described below with reference to the accompanying drawings in the embodiments of the present invention.

[0023] See also Figures 1 to 5In the embodiment of the utility model, the angle-adjustable steel grabber includes a connecting seat 1 chassis 14, both sides of the connecting seat 1 are hinged with steel claws 2, the top of the connecting seat 1 is welded with a bracket 3, the bracket 3 is slidably connected with a lifting plate 6, and the lifting plate 6 is driven by a hydraulic cylinder 5 to lift it up and down. When the steel claw 2 is supported by the connecting seat 1, the hydraulic cylinder 5 can be supported so that the hydraulic cylinder 5 is located at the top of the steel claw 2. The bracket 3 can provide protection for the hydraulic cylinder 5. Both ends of the lifting plate 6 are welded with connecting plates 7, and both sides of the connecting plate 7 are hinged with a connecting rod 11 through a shaft rod 10. The connecting rod 11 The bottom is hinged with a connecting rod 2 13 through a shaft rod 2 12, and the bottom of the connecting rod 2 13 is welded to the steel claw 2. The rigid connection between the connecting rod 1 11 and the connecting plate 7 and the connecting rod 2 13 is avoided through the shaft rod 10 and the shaft rod 2 12. The lifting plate 6 is driven down by the hydraulic cylinder 5, and the pressure can be transmitted through the connecting rod 1 11 and the connecting rod 2 13. The top of the bracket 3 is rotatably connected to the chassis 14 through the support shaft 15. A worm gear 16 is fixedly provided on the surface of the support shaft 15, and the worm gear 16 is driven by the driving component 17 to rotate inside the chassis 14. The top of the chassis 14 is provided with a mounting component 18;

[0024] In this embodiment, preferably, sliders 8 are fixedly provided on both sides of the lifting plate 6, and slide grooves 4 are provided on the inner walls on both sides of the bracket 3. The sliders 8 are slidably connected with the slide grooves 4. The lifting plate 6 can be guided by the sliders 8 and the slide grooves 4 to prevent the lifting plate 6 from tilting. The middle part of the bottom end of the lifting plate 6 is fixedly connected with the hydraulic rod of the hydraulic cylinder 5, and the bottom end of the hydraulic cylinder 5 is fixedly connected with the middle part of the top end of the connecting seat 1. The connecting seat 1 can provide stable support for the bottom end of the hydraulic cylinder 5;

[0025] In this embodiment, preferably, both sides of the connecting plate 7 and the top of the connecting rod 11 are rotatably connected to the shaft rod 10 through the shaft hole 9, and the bottom of the connecting rod 11 and the top of the connecting rod 2 13 are rotatably connected to the connecting rod 2 13 through the shaft hole 9, and the connecting rod 11 and the connecting rod 2 13 can be passed through the shaft hole 9;

[0026] In this embodiment, preferably, the driving assembly 17 includes a motor 1701 and a worm 1702, the output shaft of the motor 1701 is connected to the worm 1702, the worm 1702 is rotatably connected to the inner wall of the chassis 14, and the worm 1702 is meshedly connected to the worm wheel 16. The worm 1702 is driven by the motor 1701, and the worm 1702 can drive the support shaft 15 to rotate through the worm wheel 16, so that the angle of the steel claw 2 can be adjusted;

[0027] In this embodiment, preferably, the bottom end of the motor 1701 is fixedly connected with an angle iron 1703, and the bottom end of the angle iron 1703 is welded with a rib plate 1704, and one side of the angle iron 1703 and one side of the rib plate 1704 are welded to the chassis 14, and the motor 1701 can be supported by the angle iron 1703 and the rib plate 1704, so that the stability of the motor 1701 can be ensured;

[0028] In this embodiment, preferably, a support plate 21 is welded to the bottom end of the support shaft 15, and the bottom end of the support plate 21 is fixedly connected to the middle part of the top end of the bracket 3 by bolts. The bottom end of the support shaft 15 can support the bracket 3 through the support plate 21, and the bracket 3 can be installed and disassembled;

[0029] In this embodiment, preferably, the mounting assembly 18 includes a column 1801 and a mounting plate 1803, the bottom end of the column 1801 is welded to the middle of the top of the chassis 14, a plurality of reinforcing plates 1802 are welded to the surface of the column 1801, a mounting plate 1803 is welded to the top of the column 1801, a plurality of mounting holes 1804 are opened on the surface of the mounting plate 1803, the mounting plate 1803 can support the chassis 14 through the column 1801 and the reinforcing plate 1802, and the column 1801 can be fixed to the arm of the steel grabber through the mounting holes 1804 of the mounting plate 1803;

[0030] In this embodiment, preferably, a maintenance passage 19 is provided on one side of the chassis 14 , and a maintenance cover 20 is provided on the surface of the maintenance passage 19 . By opening the maintenance cover 20 , the interior of the chassis 14 can be inspected through the maintenance passage 19 .

[0031] When in use, the staff first fixes the column 1801 on the arm of the steel grabber through the mounting plate 1803 of the mounting assembly 18, and the steel grabber can support the chassis 14 through the column 1801, and then fixes the bracket 3 to the bottom end of the support shaft 15 through the support plate 21, and the support shaft 15 can support the steel claw 2 through the bracket 3;

[0032] When it is necessary to grab an object, the staff drives the lifting plate 6 to descend through the hydraulic cylinder 5. The slider 8 and the slide groove 4 can guide the lifting plate 6 to prevent it from tilting. The angles of the connecting rod 11 and the connecting rod 2 13 change, which can transmit pressure and avoid the direct transmission of the force of the hydraulic cylinder 5 to the steel claw 2. It can play the role of toggle force and lever force, that is, the two steel claws 2 can clamp the object. When it is necessary to put down the object, the height of the lifting plate 6 is lowered by the hydraulic cylinder 5, and the steel claw 2 can be opened to put down the object.

[0033] When the steel grabbing position of the steel grabber needs to be adjusted, the support shaft 15 is driven by the driving component 17 to adjust the position of the steel claw 2, so as to realize multi-angle grasping of the object. In the process of grasping the object, the connecting seat 1 and the bracket 3 can provide protection for the hydraulic cylinder 5 to prevent the hydraulic cylinder 5 from colliding with the object and keep the hydraulic cylinder 5 away from the object.

[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An angle-adjustable steel grabber, comprising a connecting seat (1) and a chassis (14), characterized in that: Steel claws (2) are hinged on both sides of the connection seat (1), a bracket (3) is welded on the top of the connection seat (1), the bracket (3) is slidably connected to a lifting plate (6), the lifting plate (6) is driven by a hydraulic cylinder (5) to be lifted and lowered, connecting plates (7) are welded on both ends of the lifting plate (6), both sides of the connecting plate (7) are hinged with a connecting rod (11) through a shaft rod (10), the bottom of the connecting rod (11) is hinged with a connecting rod (13) through a shaft rod (12), the bottom of the connecting rod (13) is welded to the steel claws (2), the top of the bracket (3) is rotatably connected to a chassis (14) through a support shaft (15), a worm gear (16) is fixedly provided on the surface of the support shaft (15), and the worm gear (16) is driven by a driving component (17) to rotate inside the chassis (14), and a mounting component (18) is provided on the top of the chassis (14).

2. The angle-adjustable steel grabber gripper according to claim 1, characterized in that: Slide blocks (8) are fixedly provided on both sides of the lifting plate (6), and slide grooves (4) are provided on the inner walls of both sides of the bracket (3). The slide blocks (8) are slidably connected to the slide grooves (4). The middle part of the bottom end of the lifting plate (6) is fixedly connected to the hydraulic rod of the hydraulic cylinder (5), and the bottom end of the hydraulic cylinder (5) is fixedly connected to the middle part of the top end of the connecting seat (1).

3. The angle-adjustable steel grabber gripper according to claim 1, characterized in that: The two sides of the connecting plate (7) and the top of the connecting rod (11) are rotatably connected to the shaft rod (10) through the shaft hole (9), and the bottom of the connecting rod (11) and the top of the connecting rod (13) are rotatably connected to the connecting rod (13) through the shaft hole (9).

4. The angle-adjustable steel grabber gripper according to claim 1, characterized in that: The driving assembly (17) comprises a motor (1701) and a worm (1702), wherein the output shaft of the motor (1701) is connected to the worm (1702), the worm (1702) is rotationally connected to the inner wall of the chassis (14), and the worm (1702) is meshingly connected to the worm wheel (16).

5. The angle-adjustable steel grabber gripper according to claim 4, characterized in that: The bottom end of the motor (1701) is fixedly connected to an angle iron (1703), the bottom end of the angle iron (1703) is welded to a rib plate (1704), and one side of the angle iron (1703) and one side of the rib plate (1704) are both welded to the chassis (14).

6. The angle-adjustable steel grabber gripper according to claim 1, characterized in that: A support plate (21) is welded to the bottom end of the support shaft (15), and the bottom end of the support plate (21) is fixedly connected to the middle part of the top end of the bracket (3) by bolts.

7. The angle-adjustable steel grabber gripper according to claim 1, characterized in that: The mounting assembly (18) comprises a column (1801) and a mounting plate (1803); the bottom end of the column (1801) is welded to the middle of the top end of the chassis (14); a plurality of reinforcing plates (1802) are welded to the surface of the column (1801); the top end of the column (1801) is welded to the mounting plate (1803); and a plurality of mounting holes (1804) are provided on the surface of the mounting plate (1803).

8. The angle-adjustable steel grabber gripper according to claim 1, characterized in that: A maintenance channel (19) is provided on one side of the chassis (14), and a maintenance cover (20) is provided on the surface of the maintenance channel (19).

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