Double-oil-cylinder rotary gripping head for hydraulic gripping machine

Abstract

The utility model discloses a double-oil-cylinder rotating gripper for a hydraulic gripping machine, which is applied to the technical field of hydraulic gripping machines, and is characterized in that a rotating mechanism and a claw clamping mechanism are respectively arranged below a lifting lug seat; the claw clamping mechanism comprises a circular shaft, a transverse plate, a vertical plate and a shade, the vertical plate and the shade are fixedly connected to the top of the transverse plate, first hydraulic cylinders are fixedly connected to the outer wall of the vertical plate, and rotating shafts are rotationally connected to the other ends of the first hydraulic cylinders. In the process, the rotating shaft can drive the rotating block to rotate so as to drive the circular shaft to rotate, under the rotation of the circular shaft, the multiple large claw teeth are driven to rotate around the circular shaft fixedly connected with the large claw teeth, and the small claw teeth rotate along with the circular shaft under the assistance of the circular rod, so that the opening and closing effects of the grab bucket are achieved, and the multiple large claw teeth and the multiple small claw teeth are arranged in a staggered mode; the extrusion force of the grab bucket is increased, so that the grabbing efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic grabbers, in particular to a double-cylinder rotating grabber for a hydraulic grabber. Background Art

[0002] Hydraulic grabbers play a vital role in industries such as industry, construction, and agriculture. Driven by hydraulic cylinders, they achieve precise grabbing and releasing movements, significantly improving the efficiency and safety of bulk material handling. They not only increase production efficiency, but also reduce production costs and improve the production environment.

[0003] At present, the gripping head of the hydraulic gripper currently in use cannot rotate and has certain limitations. When the material needs to be placed at any angle as required, the gripping head of the current hydraulic gripper cannot do it. In addition, if the gripped material is accompanied by fine hard particles or corrosive liquids, these substances will fall onto the outer wall of the hydraulic cylinder and may enter the hydraulic cylinder during the extension and retraction process of the hydraulic cylinder, causing damage to the hydraulic cylinder, thereby reducing the service life of the gripping head or increasing the maintenance frequency. Utility Model Content

[0004] The purpose of the utility model is to provide a double-cylinder rotating grab head for a hydraulic grab to solve the problems raised in the above background technology.

[0005] To achieve the above object, the utility model provides the following technical solutions: a double-cylinder rotary gripping head for a hydraulic gripping machine, comprising a lifting lug seat, a rotating mechanism and a claw clamping mechanism are respectively provided below the lifting lug seat;

[0006] The claw clamp mechanism includes a circular shaft, a horizontal plate, and a vertical plate and a cover fixedly connected to the top of the horizontal plate respectively. The outer wall of the vertical plate is fixedly connected to a hydraulic cylinder 1, and the other end of the hydraulic cylinder is rotatably connected to a rotating shaft. The outer walls of both ends of the rotating shaft are rotatably sleeved with rotating blocks, and the rotating blocks are fixedly sleeved on the outer wall of the circular shaft. The outer wall of the circular shaft is fixedly sleeved with a plurality of large claws, and a plurality of round rods are connected between the plurality of large claws, and the outer walls of the round rods are fixedly sleeved with small claws.

[0007] The utility model is further configured as follows: the rotating mechanism includes an annular protrusion fixedly connected to the bottom of the lifting ear seat and a circular rotating drum rotatably connected to the annular protrusion; the outer wall of the circular rotating drum is fixedly connected to a pin shaft 1; the outer wall of the pin shaft 1 is rotatably sleeved with a hydraulic cylinder 2; the other end of the hydraulic cylinder 2 is rotatably connected to a pin shaft 2; the end of the pin shaft 2 away from the lifting ear seat is fixedly connected to a rotating seat.

[0008] Using the above technical solution, the number of hydraulic cylinders 2 is two, and the two hydraulic cylinders 2 are symmetrically arranged about the circular rotating drum, and the two hydraulic cylinders 2 are synchronously controlled. By controlling the extension or shortening of the two hydraulic cylinders 2, the circular rotating drum rotates with the cooperation of the pin shaft 1 and the rotating shaft 2, and then the claw clamping angle of the grab bucket can be changed to realize grabbing of materials placed in different places, and to swing the materials at any angle according to work requirements, thereby improving work efficiency and facilitating use.

[0009] The utility model is further configured as follows: both ends of the horizontal plate and the vertical plate are fixedly connected to the inner wall of the rotating seat.

[0010] By adopting the above technical solution, the horizontal plate and the vertical plate are convenient for fixing and supporting the mask and the hydraulic cylinder, respectively, to ensure the normal operation of the device.

[0011] The utility model is further configured as follows: the two ends of the circular shaft respectively penetrate the inner walls on both sides of the rotating seat, and the outer wall of the circular shaft is rotatably connected to the rotating seat.

[0012] By adopting the above technical solution, the swivel seat supports the circular shaft, and at the same time, under the action of the hydraulic cylinder 1, the circular shaft can rotate relative to the swivel seat.

[0013] The utility model is further configured as follows: a rotation groove is provided on the top of the circular rotating drum, and the circular rotating drum is rotatably connected to the outer wall of the annular protrusion through the rotation groove.

[0014] By adopting the above technical solution, the annular protrusion supports the circular rotating drum under the action of the rotating groove. At the same time, it is convenient for the circular rotating drum to rotate around the center of the annular protrusion under the action of the second hydraulic cylinder, thereby realizing the change of the angle of the grab bucket.

[0015] The utility model is further configured as follows: the mask is in a wavy arc shape.

[0016] By adopting the above technical solution, the wavy arc-shaped shield can effectively protect the hydraulic cylinder 1, preventing corrosive liquids or small hard particles in the grab bucket from falling onto the outer wall of the hydraulic cylinder 1 during operation, thereby causing damage to the hydraulic cylinder 1. This can better protect the hydraulic cylinder 1, extend the service life of the grab bucket and reduce the frequency of maintenance.

[0017] The utility model is further configured as follows: the plurality of large claw teeth and small claw teeth are all staggered.

[0018] By adopting the above technical solution, multiple large claws and small claws are staggered, which not only increases the squeezing force of the grab bucket on the material when closing, thereby improving the grabbing efficiency and ensuring that the material can be firmly grasped, but also helps to reduce the slipping and scattering of the material during the grabbing process, thereby improving the stability of loading.

[0019] The utility model provides a double-cylinder rotating grab head for a hydraulic grab. It has the following beneficial effects:

[0020] (1) The utility model controls the extension or contraction of two hydraulic cylinders to drive the movement of the rotating shafts connected to them respectively. In this process, the rotating shaft drives the rotating block to rotate, and then drives the circular shaft to rotate. Under the rotation of the circular shaft, multiple large claws are driven to rotate around the circular shafts fixed to them. The small claws follow the rotation with the assistance of the round rod, thereby realizing the opening and closing effect of the grab bucket. In addition, the multiple large claws and small claws are staggered, which can not only increase the squeezing force of the grab bucket on the material when closing, thereby improving the grabbing efficiency and ensuring that the material can be firmly grabbed, but also help to reduce the slipping and scattering of the material during the grabbing process, thereby improving the stability of loading. In addition, the wavy arc-shaped shield can effectively protect the hydraulic cylinder one, preventing corrosive liquids or fine hard particles in the grab bucket from falling onto the outer wall of the hydraulic cylinder one during the operation of the grab machine, thereby damaging the hydraulic cylinder one. It can better protect the hydraulic cylinder one, extend the service life of the grab bucket and reduce the frequency of maintenance.

[0021] (2) The utility model controls the extension or contraction of the two hydraulic cylinders 2, and with the cooperation of the pin shaft 1 and the rotating shaft 2, the circular rotating drum rotates, thereby changing the angle of the claws of the grab bucket, so as to grab materials placed in different positions, and to adjust the materials to any angle according to the working requirements, thereby improving the working efficiency and facilitating the use. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a three-dimensional diagram of the utility model;

[0023] Figure 2 This is a top view of the utility model;

[0024] Figure 3 This is an isometric sectional view of the present invention;

[0025] Figure 4 It is a partial exploded view of the utility model;

[0026] Figure 5 This is a three-dimensional diagram of the claw teeth of the utility model.

[0027] In the figure: 1. Lifting ear seat; 2. Claw clamping mechanism; 21. Horizontal plate; 22. Vertical plate; 23. Hydraulic cylinder 1; 24. Rotating shaft; 25. Rotating block; 26. Cover; 27. Circular shaft; 28. Large claw teeth; 29. ​​Round rod; 210. Small claw teeth; 3. Rotating mechanism; 31. Circular ring protrusion; 32. Circular rotating drum; 33. Rotating groove; 34. Hydraulic cylinder 2; 35. Pin 1; 36. Pin 2; 37. Rotating seat. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0029] like Figure 1-5 As shown, the utility model provides a technical solution: a double-cylinder rotary gripping head for a hydraulic gripping machine, comprising a lifting lug seat 1, a rotating mechanism 2 and a claw clamping mechanism 3 are respectively arranged below the lifting lug seat 1;

[0030] The claw clamp mechanism 2 includes a circular shaft 27, a horizontal plate 21, a vertical plate 22 fixedly connected to the top of the horizontal plate 21, and a shield 26. The shield 26 is in a wavy arc shape. The wavy arc-shaped shield 26 can effectively protect the hydraulic cylinder 1 23, preventing corrosive liquids or fine hard particles in the grab bucket from falling onto the outer wall of the hydraulic cylinder 1 23 during operation, thereby damaging the hydraulic cylinder 1 23. It can better protect the hydraulic cylinder 1 23, extend the service life of the grab bucket and reduce the frequency of maintenance. The outer wall of the vertical plate 22 is fixedly connected to the hydraulic cylinder 1 23, and the other end of the hydraulic cylinder 1 23 is rotatably connected to the rotating shaft 24. The rotating shaft 2 The outer walls of both ends are rotatably sleeved with rotating blocks 25, which are fixedly sleeved on the outer wall of the circular shaft 27. A plurality of large claws 28 are fixedly sleeved on the outer wall of the circular shaft 27. A plurality of round rods 29 are connected between the plurality of large claws 28. Small claws 210 are fixedly sleeved on the outer walls of the round rods 29. The plurality of large claws 28 and small claws 210 are staggered. The staggered arrangement of the plurality of large claws 28 and small claws 210 not only increases the squeezing force of the grab bucket on the material when closing, thereby improving the grabbing efficiency and ensuring that the material can be firmly grasped, but also helps to reduce the slipping and scattering of the material during the grabbing process, thereby improving the loading stability.

[0031] The rotating mechanism 3 includes an annular protrusion 31 fixedly connected to the bottom of the lifting ear seat 1 and a circular rotating drum 32 rotatably connected to the annular protrusion 31. A rotating groove 33 is provided on the top of the circular rotating drum 32. The circular rotating drum 32 is rotatably connected to the outer wall of the annular protrusion 31 through the rotating groove 33. The annular protrusion 31 supports the circular rotating drum 32 under the action of the rotating groove 33. At the same time, it is convenient for the circular rotating drum 32 to rotate around the center of the annular protrusion 31 under the action of the hydraulic cylinder 2 34, thereby realizing the change of the angle of the grab bucket. The outer wall of the circular rotating drum 32 is fixedly connected to a pin shaft 1 35, and the outer wall of the pin shaft 1 35 is rotatably sleeved with a hydraulic cylinder 2 34, the other end of the hydraulic cylinder 2 34 is rotatably connected to the pin 2 36, and the end of the pin 2 36 away from the lifting ear seat 1 is fixedly connected to the swivel seat 37, and both ends of the horizontal plate 21 and the vertical plate 22 are fixedly connected to the inner wall of the swivel seat 37. The horizontal plate 21 and the vertical plate 22 are convenient for fixing and supporting the mask 26 and the hydraulic cylinder 1 23 to ensure the normal operation of the device. The two ends of the circular shaft 27 respectively pass through the inner walls on both sides of the swivel seat 37, and the outer wall of the circular shaft 27 is rotatably connected to the swivel seat 37. The swivel seat 37 supports the circular shaft 27. At the same time, under the action of the hydraulic cylinder 1 23, the circular shaft 27 can rotate relative to the swivel seat 37;

[0032] There are two hydraulic cylinders 2 34 , which are symmetrically arranged about the circular drum 32 and are controlled synchronously. By controlling the extension or contraction of the two hydraulic cylinders 2 34 , the circular drum 32 is rotated with the cooperation of the pin 1 35 and the rotating shaft 2 36 , and the claw clamping angle of the grab bucket can be changed to achieve grabbing of materials placed in different places and to swing the materials at any angle according to work requirements, thereby improving work efficiency and facilitating use.

[0033] Working principle: When in use, by controlling the extension or contraction of the two hydraulic cylinders 34, the circular drum 32 rotates with the cooperation of the pin 35 and the rotating shaft 36, and then the angle of the claws of the grab bucket can be changed, so that the grabbing of materials in different places can be realized, and the materials can be moved at any angle according to the working requirements, which improves the working efficiency and is convenient to use.

[0034] When grabbing materials, by controlling the extension or contraction of the two hydraulic cylinders 23, the rotating shafts 24 connected to each other are driven to move, and in this process, the rotating shaft 24 will drive the rotating block 25 to rotate, and then drive the circular shaft 27 to rotate. Under the rotation of the circular shaft 27, the multiple large claws 28 are driven to rotate around the circular shafts 27 to which they are fixed, and the small claws 210 follow the rotation with the assistance of the round rod 29, thereby realizing the opening and closing effect of the grab bucket, and the multiple large claws 28 and small claws 210 are staggered, which not only increases the opening and closing of the grab bucket, but also increases the opening and closing of the grab bucket. The squeezing force on the material during the grabbing process can be increased, thereby improving the grabbing efficiency and ensuring that the material can be firmly grasped. It can also help reduce the slipping and scattering of the material during the grabbing process and improve the stability of loading. In addition, the wave-arc-shaped shield 26 can effectively protect the hydraulic cylinder 23 and prevent corrosive liquids or fine hard particles in the grab bucket from falling onto the outer wall of the hydraulic cylinder 23 during the operation of the grab machine, thereby damaging the hydraulic cylinder 23. This can better protect the hydraulic cylinder 23, extend the service life of the grab bucket and reduce the frequency of maintenance.

[0035] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A double-cylinder rotary gripper for a hydraulic gripper, comprising a lifting lug seat (1), characterized in that: A rotating mechanism (3) and a claw clamping mechanism (2) are respectively provided below the lug seat (1); The claw clamp mechanism (2) comprises a circular shaft (27), a horizontal plate (21), a vertical plate (22) and a shield (26) fixedly connected to the top of the horizontal plate (21), wherein the outer wall of the vertical plate (22) is fixedly connected to a hydraulic cylinder (23), and the other end of the hydraulic cylinder (23) is rotatably connected to a rotating shaft (24), and the outer walls of both ends of the rotating shaft (24) are rotatably sleeved with rotating blocks (25), and the rotating blocks (25) are fixedly sleeved on the outer wall of the circular shaft (27), and the outer wall of the circular shaft (27) is fixedly sleeved with a plurality of large claw teeth (28), and a plurality of round rods (29) are connected between the plurality of large claw teeth (28), and the outer wall of the round rods (29) is fixedly sleeved with small claw teeth (210).

2. The double-cylinder rotating grab head for a hydraulic grab according to claim 1, characterized in that: The rotating mechanism (3) comprises an annular protrusion (31) fixedly connected to the bottom of the lifting lug seat (1) and a circular rotating drum (32) rotatably connected to the annular protrusion (31), wherein the outer wall of the circular rotating drum (32) is fixedly connected to a pin shaft 1 (35), and the outer wall of the pin shaft 1 (35) is rotatably sleeved with a hydraulic cylinder 2 (34), and the other end of the hydraulic cylinder 2 (34) is rotatably connected to a pin shaft 2 (36), and the end of the pin shaft 2 (36) away from the lifting lug seat (1) is fixedly connected to a rotating seat (37).

3. The double-cylinder rotating grab head for a hydraulic grab according to claim 1, characterized in that: Both ends of the horizontal plate (21) and the vertical plate (22) are fixedly connected to the inner wall of the rotating seat (37).

4. The double-cylinder rotating grab head for a hydraulic grab according to claim 1, characterized in that: The two ends of the circular shaft (27) respectively penetrate the inner walls on both sides of the rotating seat (37), and the outer wall of the circular shaft (27) is rotatably connected to the rotating seat (37).

5. The double-cylinder rotating grab head for a hydraulic grab according to claim 2, characterized in that: A rotation groove (33) is provided on the top of the circular rotating drum (32), and the circular rotating drum (32) is rotatably connected to the outer wall of the annular protrusion (31) through the rotation groove (33).

6. The double-cylinder rotating grab head for a hydraulic grab according to claim 1, characterized in that: The mask (26) is in a wavy arc shape.

7. The double-cylinder rotating grab head for a hydraulic grab according to claim 1, characterized in that: The plurality of large claw teeth (28) and small claw teeth (210) are all staggered.

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