Gripping horse

Abstract

The utility model relates to the technical field of bearing dismounting tools, and discloses a grabbing horse which comprises a connecting disc, a threaded rod is in threaded connection with the circle center of the connecting disc, a conical top head is fixedly connected to the bottom end of the threaded rod, and a set of connecting bases are fixedly connected to the outer surface of the connecting disc. A small swing arm is hinged to the interior of each connecting base. According to the grabbing horse, the conical ejector head is designed, the grabbing horse can abut against various shaft ends more effectively, it is ensured that a stable supporting point is provided in the dismounting process, and due to the design of the conversion plate, the threaded column, the connecting sleeve and the clamping ball, a user can easily replace and adjust the configuration of the claw arms according to different bearing models and working requirements; and the claw arms and the conversion plate are connected in a hinged and rotating mode, so that the tool can flexibly adapt to different mounting environments of the bearing, it is ensured that even pulling force is applied in the dismounting process, and the dismounting efficiency and the success rate are improved.

Description

Technical Field

[0001] The present application relates to the technical field of bearing removal tools, and in particular to a bearing grabber. Background Art

[0002] A puller, also known as a grabber, is a tool specially designed to remove bearings, gears, pulleys and other parts installed on shafts. This tool can provide a strong pulling force, so that tightly installed bearings or other parts can be easily removed from the shaft, thereby avoiding damage to the shaft or parts.

[0003] An existing patent (publication number: CN217475859U) discloses a puller comprising a base, several connecting rods, a pull claw, and a force screw. One end of the connecting rod is axially connected to the base, the other end of the connecting rod is axially connected to the pull claw, and the force screw is threadedly connected to the base. The pull claws are evenly arranged around the base, and the connecting rod is provided with positioning pins that elastically connect to the connecting rod. The pull claw and the base are each provided with several positioning holes corresponding to the positioning pins. Thus, the present invention arranges positioning holes in a ring around the mounting holes between the connecting rod and the pull claw, and between the base and the connecting rod. The positioning pins cooperate with the positioning holes to maintain a certain angle between the connecting rod and the pull claw, and between the base and the connecting rod, thus preventing the pull claw from rotating arbitrarily, reducing the difficulty of manual operation, and improving ease of use.

[0004] During the use of the above-mentioned pullers and common pullers, the upper surface of the lower end of the pull claw is manually pressed against the lower surface of the bearing, and the force screw is rotated to pull out the bearing. However, in actual situations, the outer ring of some bearings is in close contact with the shaft seat, which makes it impossible for the pull claw to contact the bottom of the bearing, resulting in difficulty in disengagement. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the present application provides a horse-grabbing device with advantages such as easy switching, which solves the problems raised in the background technology.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical solution: a grab horse, comprising a connecting disk, a threaded rod being threadedly connected at the center of the connecting disk, a top head being fixedly connected to the bottom end of the threaded rod, the top head being configured as a cone, a group of connecting seats being fixedly connected to the outer surface of the connecting disk, a small swing arm being hingedly connected to the interior of each connecting seat, a claw arm being provided inside each small swing arm, and the middle end of each claw arm being hingedly connected to the bottom end of the small swing arm adjacent thereto;

[0007] The bottom end of each claw arm is provided with a conversion plate, the middle end of each conversion plate is rotatably connected to the bottom end of the claw arm adjacent to it, the bottom end of each conversion plate is fixedly connected to a threaded column, the outer surface of each threaded column is threadedly connected to a connecting sleeve, the outer surface of each connecting sleeve is rotatably connected to a card ball, and the top end of each conversion plate is fixedly connected to a pulling piece.

[0008] Through the above scheme, by designing a conical head, the claw can more effectively counteract various shaft ends, ensuring a stable support point during the disassembly process. The design of the conversion plate, threaded column, connecting sleeve and card ball allows users to easily replace and adjust the configuration of the claw arm according to different bearing models and work requirements, significantly improving the adaptability and flexibility of the tool. The claw arm and the conversion plate are connected by hinges and rotations, which can flexibly adapt to different installation environments of the bearings, ensuring uniform pulling force during the disassembly process, improving the disassembly efficiency and success rate, and the design of the top plate and the interlocking block allows the claw to be easily connected to power equipment such as handheld drills to realize mechanized operation, which greatly reduces the physical burden of the operator. The application of the extension rod and lever seat can use the lever principle to reduce the required turning force in the absence of electric equipment, further improving the convenience of operation.

[0009] Furthermore, two symmetrically arranged limiting holes are provided on one side of each conversion plate, and the bottom end of one side of each claw arm is fixedly connected to a limiting frame. A limiting rod is slidably inserted inside the two limiting frames, and each limiting rod is inserted into the limiting hole adjacent to it.

[0010] Through the above solution, by setting the limiting rod and the limiting hole, the purpose of limiting the conversion plate can be achieved, and swinging during use can be avoided.

[0011] Furthermore, a spring is installed between one end of each limiting rod and the limiting frame adjacent thereto.

[0012] Through the above solution and the provision of the spring, the stability of the limiting rod's limiting function can be improved.

[0013] Furthermore, the top end of the threaded rod is fixedly connected to a top plate, and the upper surface of the top plate is fixedly connected to a chimeric block.

[0014] Through the above solution, by providing the engaging block, it is possible to easily connect with an external handheld drill to drive the threaded rod to rotate.

[0015] Furthermore, two lever seats are fixedly connected to the outer surface of the top plate, rocking blocks are hingedly connected to the interior of the two lever seats, and extension rods are threadedly connected to the interior of the two rocking blocks.

[0016] Through the above solution, by setting the extension rod, the purpose of extending the length of the rocking block can be achieved, and then the required turning force can be reduced by utilizing the lever principle.

[0017] Furthermore, the top ends of the two extension rods are fixedly connected with handles.

[0018] Through the above solution, the setting of the handle can facilitate the user to hold it.

[0019] Furthermore, the outer surfaces of the two handles are knurled.

[0020] According to the above solution, the knurling of the handle can increase the friction coefficient, thereby improving the user experience.

[0021] Furthermore, each of the connecting sleeves can be separated and disassembled from the threaded column.

[0022] The above solution makes it easier for users to replace balls of different sizes, thereby further improving overall flexibility.

[0023] Compared with the existing technology, the technical solution of this application has the following beneficial effects:

[0024] This kind of claw horse, through the design of conical head, can more effectively counteract various shaft ends, ensuring a stable support point during the disassembly process. The design of conversion plate, threaded column, connecting sleeve and card ball allows users to easily replace and adjust the configuration of the claw arm according to different bearing models and work requirements, significantly improving the adaptability and flexibility of the tool. The claw arm and conversion plate are connected by hinges and rotations, which can flexibly adapt to different installation environments of bearings, ensuring uniform pulling force during the disassembly process, improving disassembly efficiency and success rate. The design of top plate and interlocking block enables this claw horse to be easily connected to power equipment such as handheld drills to realize mechanized operation, which greatly reduces the physical burden of the operator. The application of extension rod and lever seat can use the lever principle to reduce the required rotation force in the absence of electric equipment, further improving the convenience of operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a three-dimensional schematic diagram of the overall structure of this application;

[0026] Figure 2 For this application Figure 1 A schematic diagram of the structure at center A;

[0027] Figure 3 This is the claw arm structure diagram of this application;

[0028] Figure 4 This is the structural diagram of the conversion board for this application.

[0029] In the picture:

[0030] 1. Connecting plate; 2. Threaded rod; 3. Ejector head; 4. Connecting seat; 5. Small swing arm; 6. Claw arm; 7. Conversion plate; 8. Threaded column; 9. Connecting sleeve; 10. Card ball; 11. Lifting piece; 12. Limiting hole; 13. Limiting frame; 14. Limiting rod; 15. Spring; 16. Top plate; 17. Engaging block; 18. Lever seat; 19. Rocker; 20. Extension rod; 21. Handle. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0032] See also Figure 1 、 Figure 3 and Figure 4 , a horse grabber in this embodiment includes a connecting disk 1, a threaded rod 2 is threadedly connected to the center of the connecting disk 1, and a top head 3 is fixedly connected to the bottom end of the threaded rod 2. The top head 3 is set to be conical. Through the setting of the top head 3, it can be easily offset against the external shaft end. A group of connecting seats 4 are fixedly connected to the outer surface of the connecting disk 1, and a small swing arm 5 is hinged inside each connecting seat 4. A claw arm 6 is provided inside each small swing arm 5, and the middle end of each claw arm 6 is hinged to the bottom end of the small swing arm 5 close to it.

[0033] See also Figure 1 、 Figure 3 and Figure 4 The bottom end of each claw arm 6 is provided with a conversion plate 7, and the middle end of each conversion plate 7 is rotatably connected to the bottom end of the claw arm 6 adjacent to it. The bottom end of each conversion plate 7 is fixedly connected to a threaded column 8, and the outer surface of each threaded column 8 is threadedly connected to a connecting sleeve 9, and the outer surface of each connecting sleeve 9 is rotatably connected to a card ball 10. Each connecting sleeve 9 can be separated and disassembled from the threaded column 8, which makes it convenient for users to replace card balls 10 of different sizes, further improving the overall flexibility. The top of each conversion plate 7 is fixedly connected to a lifting piece 11. Through the setting of the lifting piece 11 and the card ball 10, different types of bearings and working requirements under different operations can be replaced and used, thereby improving the overall functionality.

[0034] See also Figure 1 、 Figure 2 and Figure 3Two symmetrically arranged limiting holes 12 are provided on one side of each conversion plate 7, and the bottom end of one side of each claw arm 6 is fixedly connected to a limiting frame 13. The two limiting frames 13 are slidably inserted with limiting rods 14, and each limiting rod 14 is inserted into the limiting hole 12 adjacent to it. Through the setting of the limiting rod 14 and the limiting hole 12, the purpose of limiting the conversion plate 7 can be achieved to avoid swinging during use. A spring 15 is installed between one end of each limiting rod 14 and the limiting frame 13 adjacent to it. Through the setting of the spring 15, the stability of the limiting rod 14 can be improved.

[0035] See also Figure 1 、 Figure 3 and Figure 4 The top of the threaded rod 2 is fixedly connected to a top plate 16, and the upper surface of the top plate 16 is fixedly connected to a chiming block 17. Through the setting of the chiming block 17, it can be convenient to connect with an external handheld drill to drive the threaded rod 2 to rotate. The outer surface of the top plate 16 is fixedly connected to two lever seats 18, and the interior of the two lever seats 18 are hinged with rocking blocks 19. The interior of the two rocking blocks 19 are threadedly connected to an extension rod 20. Through the setting of the extension rod 20, the purpose of extending the length of the rocking block 19 can be achieved, and the required turning force can be reduced by utilizing the lever principle. The tops of the two extension rods 20 are fixedly connected to handles 21. The setting of the handles 21 can facilitate the user to grip. The outer surfaces of the two handles 21 are knurled. The knurled setting of the handles 21 can increase the friction coefficient, thereby improving the user's experience.

[0036] A claw horse in this embodiment, through the design of a conical head 3, can more effectively counteract various shaft ends, ensuring that a stable support point is provided during the disassembly process. The design of the conversion plate 7, threaded column 8, connecting sleeve 9 and card ball 10 allows the user to easily replace and adjust the configuration of the claw arm 6 according to different bearing models and work requirements, significantly improving the adaptability and flexibility of the tool. The claw arm 6 and the conversion plate 7 are connected by hinges and rotations, which can flexibly adapt to different installation environments of the bearings, ensuring that uniform pulling force is applied during the disassembly process, improving the disassembly efficiency and success rate, the design of the top plate 16 and the chimeric block 17 allows the claw horse to be easily connected to power equipment such as handheld drills to realize mechanized operation, which greatly reduces the physical burden of the operator. The application of the extension rod 20 and the lever seat 18 can use the lever principle to reduce the required turning force in the absence of electric equipment, further improving the convenience of operation.

[0037] The working principle of the above embodiment is as follows: first, the operator aligns the conical head 3 of the claw horse with the shaft end where the bearing to be disassembled is located. Since the head 3 is designed to be conical, it can be easily inserted into the small gap between the bearing and the shaft seat, providing a stable support point for subsequent disassembly work. Then, the operator adjusts the configuration of the claw arm 6 according to the model and disassembly requirements of the bearing. The claw arm 6 is hinged inside the small swing arm 5 and can be flexibly rotated and adapted to different shapes and positions of the bearing. The conversion plate 7 is rotatably connected to the bottom end of the claw arm 6, so that the claw arm 6 can adjust the required working end as needed. By rotating the connecting sleeve 9 on the threaded column 8, the operator can easily replace the card balls 10 of different sizes to adapt to bearings of different sizes. After confirming that the claw arm 6 is configured correctly, the operator will claw The ball 10 at the lower end of the arm 6 is engaged with the inside of the bearing, or the lifting piece 11 is in contact with the lower surface of the bearing. Then, the operator connects the handheld drill to the engaging block 17 on the top plate 16, and starts the power equipment to drive the threaded rod 2 to rotate. Since the threaded rod 2 is threadedly connected to the connecting plate 1, the rotation of the threaded rod 2 will generate an upward pulling force, which is transmitted to the bearing through the head 3, the claw arm 6 and the ball 10, causing it to gradually separate from the shaft. If the operator does not have a power device, the disassembly can also be achieved by manually operating the extension rod 20. The extension rod 20 is threadedly connected to the inside of the rocker 19 and the length can be adjusted as needed. The operator holds the handle 21 and uses the lever principle to reduce the required torque. The threaded rod 2 is driven to rotate by rotating the extension rod 20, thereby generating a pulling force.

[0038] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

[0039] Although the embodiments of the present application 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 application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A horse grabber, comprising a connecting plate (1), characterized in that: The center of the connecting disk (1) is threadedly connected to a threaded rod (2), the bottom end of the threaded rod (2) is fixedly connected to a head (3), the head (3) is set to be conical, and the outer surface of the connecting disk (1) is fixedly connected to a group of connecting seats (4), each of the connecting seats (4) is hingedly connected to a small swing arm (5), each of the small swing arms (5) is provided with a claw arm (6), and the middle end of each claw arm (6) is hinged to the bottom end of the small swing arm (5) adjacent to it; The bottom end of each claw arm (6) is provided with a conversion plate (7), the middle end of each conversion plate (7) is rotatably connected to the bottom end of the claw arm (6) adjacent thereto, the bottom end of each conversion plate (7) is fixedly connected to a threaded column (8), the outer surface of each threaded column (8) is threadedly connected to a connecting sleeve (9), the outer surface of each connecting sleeve (9) is rotatably connected to a locking ball (10), and the top end of each conversion plate (7) is fixedly connected to a lifting piece (11).

2. A horse-grabbing device according to claim 1, characterized in that: Two symmetrically arranged limiting holes (12) are provided on one side of each conversion plate (7), and the bottom end of one side of each claw arm (6) is fixedly connected to a limiting frame (13). The limiting rods (14) are slidably inserted into the interiors of the two limiting frames (13), and each limiting rod (14) is inserted into the limiting hole (12) adjacent to it.

3. A horse-grabbing device according to claim 2, characterized in that: A spring (15) is installed between one end of each limiting rod (14) and the limiting frame (13) adjacent thereto.

4. The horse-grabbing device according to claim 1, characterized in that: The top end of the threaded rod (2) is fixedly connected to a top plate (16), and the upper surface of the top plate (16) is fixedly connected to a fitting block (17).

5. The horse-grabbing device according to claim 4, characterized in that: Two lever seats (18) are fixedly connected to the outer surface of the top plate (16), rocking blocks (19) are hingedly connected inside the two lever seats (18), and extension rods (20) are threadedly connected inside the two rocking blocks (19).

6. The horse-grabbing device according to claim 5, characterized in that: The top ends of the two extension rods (20) are fixedly connected to handles (21).

7. The horse-grabbing device according to claim 6, characterized in that: The outer surfaces of the two handles (21) are both knurled.

8. The horse-grabbing device according to claim 1, characterized in that: Each connecting sleeve (9) can be separated and disassembled from the threaded column (8).

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