Three-jaw puller support
By designing a three-jaw pulling bracket with an annular connecting frame, pull plate and pull rod, the problem of unstable connection between the claw arms before positioning is solved, and the simultaneous adjustment and stable connection of the three claw arms is achieved, improving the Installation and work efficiency.
Patent Information
- Application Number
- CN202421009609.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-10
- Publication Date
- 2025-02-25
- Estimated Expiration
- 2034-05-10
AI Technical Summary
The existing three-claw pulling tool has unstable connection with the bearing before positioning the claw arm, causing the claw arm to fall off before positioning, affecting the installation convenience and working efficiency.
A three-claw pulling bracket is designed to achieve simultaneous adjustment of the three claw arms through components such as an annular connecting frame, pull plate and pull rod, so that they can rotate at the same angle at the same time, and pass through arc springs and through groove structures. Maintain stable connection between the claw arm and the workpiece.
It effectively avoids the problem of claw arms falling off before positioning, improves installation efficiency and work efficiency, and makes the connection between claw arms and workpieces more stable and convenient.
Smart Images
Figure CN222521179U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of three-jaw pullers, and in particular relates to a three-jaw puller bracket. Background Art
[0002] The three-jaw puller is a tool frequently used in mechanical maintenance. It is mainly used to remove damaged bearings from the shaft along the axial direction. It is mainly composed of a rotary handle, a spiral rod and a claw, with two claws and three claws. The main dimensions are the claw length, the claw spacing and the screw length to adapt to bearings of different diameters and different axial installation depths. When in use, the top of the screw is positioned at the top hole of the shaft end to adjust the position of the claw so that the claw is hooked on the outer ring of the bearing, and the rotary handle is rotated to make the claw drive the bearing to move axially outward for removal. When connecting the claw arm to the outer ring of the bearing, the claw arm is rotated to connect with the outer ring of the bearing, and the three claw arms are adjusted in turn. Because the connection between the claw arm and the bearing is unstable before positioning, it often happens that when one claw arm is fixed, the other claw arms fall off from the bearing again, or when one of the claw arms is positioned, the other claw arms fall off, making the connection between the claw arm and the bearing relatively unstable before positioning, which makes installation more inconvenient and affects work efficiency. Utility Model Content
[0003] The utility model provides a three-jaw puller bracket, which can adjust the three claw arms at the same time so that they can rotate to the same angle at the same time and be lifted up at the same time to quickly connect with the workpiece, thereby maintaining the stability between the claw arms and the workpiece before positioning, making installation more convenient, and effectively avoiding the problem that when each claw arm is connected to the workpiece in turn, the connection between other claw arms and the workpiece is unstable and falls off, and repeated connections are required, thereby improving the installation efficiency of the bracket body and thus improving work efficiency.
[0004] The utility model provides the following technical solution: a three-jaw puller bracket, comprising a bracket body and a claw arm, a connecting piece is provided on one side of the claw arm, three connecting plates are detachably connected to one end of the bracket body, an arc spring is sleeved on one side of the connecting plate, and a through groove is opened at one end of the connecting plate, the connecting piece is slidably connected to the inside of the through groove, an annular connecting frame is sleeved on the bracket body, the annular connecting frame is rotatably connected to the bracket body, an annular rack is provided on the outer wall of the annular connecting frame, and three extension plates are evenly spaced on the outer periphery of the annular connecting frame, a shift rod is fixedly connected to one side of the annular connecting frame, a traction plate is slidably connected to the top of the extension plate, a linear rack is provided on one side of the traction plate, and a traction rod is provided at one end of the traction plate, and one end of the traction rod is connected to the top of the claw arm.
[0005] The bottom of the traction plate is fixedly connected with a connection block, the top of the extension plate is provided with a connection groove matching the connection block, and the traction plate is slidably connected with the extension plate through the connection block and the connection groove.
[0006] Wherein, a connecting shaft is provided at one end of the traction rod, and the traction rod is rotatably connected to the traction plate through the connecting shaft.
[0007] Wherein, a sliding block is arranged on the inner wall of the annular connecting frame, and the sliding block is arranged as an arc-shaped structure. A sliding groove matching the sliding block is arranged on the bracket body, and the annular connecting frame is rotatably connected with the bracket body through the sliding block.
[0008] Among them, one end of the connecting plate is fixedly connected to an assembly block, the assembly block is detachably connected to the bracket body, one end of the through slot is fixedly connected to one side of the assembly block, and the other side of the through slot abuts against the connecting piece on the adjacent side.
[0009] The beneficial effects of the utility model are:
[0010] The invention can adjust the three claw arms at the same time so that they rotate to the same angle at the same time and are lifted up at the same time to quickly connect with the workpiece. After connecting with the workpiece, the claw arms are positioned by mounting parts to maintain the stability between the claw arms and the workpiece, which is more convenient during installation and effectively avoids the problem that when each claw arm is connected to the workpiece in turn, the connection between other claw arms and the workpiece is unstable and falls off, and repeated connection is required, thereby improving the installation efficiency of the bracket body and thus improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 This is a schematic diagram of the main structure of the utility model;
[0012] Figure 2 It is a schematic diagram of the top view of the structure of the annular connecting frame and the traction plate in the utility model;
[0013] Figure 3 It is a schematic diagram of the dynamic structure of the traction plate in the utility model;
[0014] Figure 4 For this utility model Figure 1 Enlarged view of part A in the middle.
[0015] In the figure: 1, bracket body; 11, claw arm; 12, connecting piece; 2, connecting plate; 21, arc spring; 22, through groove; 23, assembly block; 3, annular connecting frame; 31, annular rack; 32, extension plate; 33, slider; 34, lever; 4, traction plate; 41, linear rack; 42, connecting block; 421, connecting groove; 43, traction rod; 431, connecting shaft. DETAILED DESCRIPTION
[0016] See also Figure 1-Figure 4 The utility model provides the following technical solutions: it includes a bracket body 1 and a claw arm 11, a connecting piece 12 is provided on one side of the claw arm 11, one end of the bracket body 1 is detachably connected with three connecting plates 2, one side of the connecting plate 2 is sleeved with an arc spring 21, and one end of the connecting plate 2 is provided with a through groove 22, the connecting piece 12 is slidably connected to the inside of the through groove 22, an annular connecting frame 3 is sleeved on the bracket body 1, the annular connecting frame 3 is rotatably connected to the bracket body 1, an annular rack 31 is provided on the outer wall of the annular connecting frame 3, and three extension plates 32 are evenly spaced on the outer periphery of the annular connecting frame 3, one side of the annular connecting frame 3 is fixedly connected with a lever 34, the top of the extension plate 32 is slidably connected with a traction plate 4, one side of the traction plate 4 is provided with a linear rack 41, and one end of the traction plate 4 is provided with a traction rod 43, and one end of the traction rod 43 is connected to the top of the claw arm 11.
[0017] In the present embodiment: In the present invention, a connecting piece 12 is provided on one side of the claw arm 11, which can connect the claw arm 11 with the connecting plate 2. Three connecting plates 2 are detachably connected to one end of the bracket body 1. When the three claw arms 11 of the bracket body 1 are adjusted, the claw arms 11 can be supported respectively. An arc spring 21 is provided on one side of the connecting plate 2, and a through groove 22 is sleeved on one end of the connecting plate 2. The connecting piece 12 is slidably connected to the inside of the through groove 22. When the claw arm is adjusted, the claw arm 11 slides inside the arc spring 21 through the connecting piece 12. When the claw arm rotates, one end of the claw arm squeezes the through groove 22, and the through groove 22 is deformed and shortened. Under the action of the squeezing force of the claw arm 11 and the elastic force of the through groove 22, the claw arm 11 is kept in a stable state. The annular connecting frame 3, the annular rack 31, the extension plate 32 and the traction plate 4, the linear rack 41 and the traction rod 43 are arranged to form a component that can simultaneously drive the three claw arms 11 to adjust the angle. When in use, the annular connecting frame 3 is toggled by the lever 34 on one side of the annular connecting frame 3 so that the annular connecting frame 3 rotates on the periphery of one end of the bracket body 1. During the rotation of the annular connecting frame 3, the annular rack 31 on the outer side of the annular connecting frame 3 is meshed and connected with the linear rack 41 on one side of the traction plate 4. When the annular rack 31 rotates, the traction plate 4 is driven to slide on the top of the extension plate 32. During the sliding of the traction plate 4, the traction rod 43 at one end thereof is pulled to move, thereby adjusting the traction plate 4. The claw arm 11 at one end of the guide rod 43 is pulled, so that the annular connecting frame 3 is moved to drive the three claw arms 11 to adjust the same angle at the same time. When the claw arm 11 is connected to the workpiece, it can be connected to the edges of the workpiece at the same time, avoiding the problem that when each claw arm 11 is connected to the workpiece in turn, the remaining claw arms 11 are connected to the workpiece unstably and fall off, and the bracket body 1 cannot be quickly connected to the workpiece. In addition, through the traction of the traction rod 43, one end of the claw arm 11 is squeezed and limited to the through groove 22. When the annular connecting frame 3 stops rotating, the position of the claw arm 11 is limited. Before the angle of the claw arm 11 is positioned by the mounting member, the stability of each claw arm 11 can be maintained. The invention is more convenient for positioning, and the efficiency of installing the bracket body 1 on the workpiece is improved. A linear rack 41 is provided on one side of the traction plate 4, and a traction rod 43 is provided on one end of the traction plate 4, so that the three claw arms 11 can be adjusted at the same time, so that they rotate at the same angle at the same time, and are lifted up at the same time to quickly connect with the workpiece. After connecting with the workpiece, the stability between the claw arm 11 and the workpiece is maintained before the claw arm 11 is positioned by the mounting part, which makes the installation more convenient, and effectively avoids the problem that when each claw arm 11 is connected to the workpiece in turn, the connection between other claw arms 11 and the workpiece is unstable and falls off, and repeated connection is required, thereby improving the installation efficiency of the bracket body 1 and thus improving work efficiency.
[0018] A connecting block 42 is fixedly connected to the bottom of the traction plate 4, and a connecting groove 421 matching the connecting block 42 is provided on the top of the extension plate 32. The traction plate 4 is slidably connected to the extension plate 32 through the connecting block 42 and the connecting groove 421; by providing the connecting block 42 and the connecting groove 421, the traction plate 4 can slide smoothly on the top surface of the extension plate 32, and the traction plate 4 can slide smoothly under the drive of the annular connecting frame 3.
[0019] A connecting shaft 431 is provided at one end of the traction rod 43, and the traction rod 43 is rotatably connected to the traction plate 4 through the connecting shaft 431; by providing the connecting shaft 431, when the traction plate 4 slides to pull the traction rod 43, the traction rod 43 can be rotated and adjusted according to the position between the traction plate 4 and the claw arm 11, so as to match the distance between the traction plate 4 and the claw arm 11.
[0020] A slider 33 is provided on the inner wall of the annular connecting frame 3. The slider 33 is set to an arc structure. A sliding groove matching the slider 33 is opened on the bracket body 1. The annular connecting frame 3 is rotatably connected to the bracket body 1 through the slider 33. By setting the slider 33, the annular connecting frame 3 and the bracket body 1 are connected, so that the annular connecting frame 3 can slide smoothly at the tail of the bracket body 1.
[0021] An assembly block 23 is fixedly connected to one end of the connecting plate 2, and the assembly block 23 is detachably connected to the bracket body 1. One end of the through slot 22 is fixedly connected to one side of the assembly block 23, and the other side of the through slot 22 abuts against the connecting piece 12 on the adjacent side. By providing the assembly block 23, it is convenient to disassemble and assemble the components. The assembly block 23 is snap-connected to the bracket body 1, and disassembly and assembly are faster.
[0022] The working principle and use process of the utility model are as follows: when in use, the annular connecting frame 3 is toggled by the toggle lever 34 on one side of the annular connecting frame 3, so that the annular connecting frame 3 rotates on the periphery of one end of the bracket body 1. During the rotation of the annular connecting frame 3, the annular rack 31 on the outer side of the annular connecting frame 3 is meshed and connected with the linear rack 41 on one side of the traction plate 4. When the annular rack 31 rotates, the traction plate 4 is driven to slide on the top of the extension plate 32. During the sliding of the traction plate 4, the traction rod 43 at one end thereof is towed to move, thereby towing the claw arm 11 at one end of the traction rod 43, so that the toggle of the annular connecting frame 3 drives the three claw arms 11 to adjust the relative positions at the same time. The same angle, when the claw arm 11 is connected to the workpiece, it can be connected to the edges of the workpiece on all sides at the same time, to avoid the problem that when each claw arm 11 is connected to the workpiece in turn, the remaining claw arms 11 are unstable and fall off, and the bracket body 1 cannot be quickly connected to the workpiece. In addition, through the traction of the traction rod 43, one end of the claw arm 11 is squeezed and limited to the through groove 22. When the annular connecting frame 3 stops rotating, the position of the claw arm 11 is limited. Before the angle of the claw arm 11 is positioned by the mounting piece, the stability of each claw arm 11 can be maintained, which makes it more convenient to position the claw arm 11 and improves the efficiency of installing the bracket body 1 on the workpiece.
[0023] The parts not involved in the present invention are the same as the prior art or can be implemented by using the prior art.
Claims
1. A three-jaw puller bracket, comprising a bracket body (1) and a claw arm (11), characterized in that: A connecting piece (12) is provided on one side of the claw arm (11); one end of the bracket body (1) is detachably connected to three connecting plates (2); one side of the connecting plate (2) is sleeved with an arc spring (21); one end of the connecting plate (2) is provided with a through groove (22); the connecting piece (12) is slidably connected to the inside of the through groove (22); an annular connecting frame (3) is sleeved on the bracket body (1); the annular connecting frame (3) is rotatably connected to the bracket body (1); the annular connecting frame (3) is rotatably connected to the bracket body (1); An annular rack (31) is arranged on the outer wall of the connecting frame (3), and three extension plates (32) are arranged at equal intervals on the outer circumference of the annular connecting frame (3). A lever (34) is fixedly connected to one side of the annular connecting frame (3), and a traction plate (4) is slidably connected to the top of the extension plate (32). A linear rack (41) is arranged on one side of the traction plate (4), and a traction rod (43) is arranged at one end of the traction plate (4), and one end of the traction rod (43) is connected to the top of the claw arm (11).
2. A three-jaw puller bracket according to claim 1, characterized in that: A connecting block (42) is fixedly connected to the bottom of the traction plate (4), a connecting groove (421) matching the connecting block (42) is provided on the top of the extension plate (32), and the traction plate (4) is slidably connected to the extension plate (32) via the connecting block (42) and the connecting groove (421).
3. The three-jaw puller bracket according to claim 1, characterized in that: A connecting shaft (431) is provided at one end of the traction rod (43), and the traction rod (43) is rotatably connected to the traction plate (4) via the connecting shaft (431).
4. The three-jaw puller bracket according to claim 1, characterized in that: The inner wall of the annular connecting frame (3) is provided with a sliding block (33), the sliding block (33) is configured as an arc-shaped structure, a sliding groove matching the sliding block (33) is provided on the support body (1), and the annular connecting frame (3) is rotatably connected to the support body (1) via the sliding block (33).
5. The three-jaw puller bracket according to claim 1, characterized in that: One end of the connection plate (2) is fixedly connected to an assembly block (23), and the assembly block (23) is detachably connected to the bracket body (1); one end of the through slot (22) is fixedly connected to one side of the assembly block (23), and the other side of the through slot (22) abuts against the connecting piece (12) on an adjacent side.