Electrically powered dismounting three jaw chuck

Abstract

The utility model relates to a kind of electric dismounting three-jaw chuck, including electric push rod, fixed cylinder, slider block cylinder and three claw parts;Fixed cylinder is fixed on the telescopic end of electric push rod, slider block cylinder is fixed on the fixed end of electric push rod;One end of three claw parts is equipped with connecting block, two pin holes are equipped on three connecting blocks, two pin holes are respectively connected with fixed cylinder and slider block cylinder rotationally;The other end of three claw parts is radially expanded and curved outward, to form the curved claw structure for hooking.Three-jaw structure is realized synchronous, uniform speed opening and closing by precise transmission connection, ensure that force distribution is uniform, and can quickly, stably complete clamping and separation operation, compared with traditional tool can greatly reduce operation time.Meanwhile, its high-rigidity component and reliable linkage mechanism effectively prevent skidding, loosening phenomenon in operation process, both ensure the safety controllable of dismounting process, also improve operation success rate, provide solid guarantee for the engineering application and popularization of the tool.

Description

Technical Field

[0001] This utility model relates to the field of mechanical disassembly tools, specifically to an electric disassembly three-jaw clamp. Background Technology

[0002] In mining conveying systems, idlers are the core units supporting the continuous operation of the conveyor belt, and their operating status directly determines the stable operating efficiency and on-site operational safety of the entire conveying system. In recent years, with the popularization of intelligent monitoring technology, self-powered idler monitoring devices have been widely used. These devices integrate sensor components to achieve online acquisition of key operating parameters such as temperature and vibration, facilitating early fault identification and predictive maintenance. Typically, these monitoring devices are fixed to the idler shaft end through tight assembly or snap-fit ​​methods to adapt to extreme working environments such as high dust and high vibration underground.

[0003] However, existing tools for disassembling such monitoring devices have many limitations during routine maintenance. Traditional manual tools (such as adjustable wrenches and pliers) require operators to precisely align the tools with the structural locking points. Due to limited space and imperfect operating angles, this often leads to uneven force, damage to the locking clips, or even accidental damage to the monitoring device itself. Meanwhile, existing specialized disassembly tools suffer from poor versatility, making them unsuitable for different sizes and models of idler roller monitoring devices, severely limiting their applicability in mining operations. Furthermore, the confined working face and poor lighting conditions underground further increase the difficulty and safety risks of disassembly work.

[0004] Of particular concern is that, due to the long-term operation of the idler rollers in a humid and highly corrosive environment, the connection interface between the rollers and the monitoring device is prone to corrosion and dust accumulation, forming stubborn dirt that makes disassembly difficult and significantly increases the workload and operational complexity of equipment maintenance. Therefore, there is an urgent need to develop a specialized disassembly tool with a reasonable structural design, strong adaptability, and high operational efficiency, capable of quickly and safely completing the disassembly and assembly of the idler roller monitoring device in complex underground environments, thereby improving the maintenance efficiency and safety of mining equipment. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide an electric disassembly three-jaw clamp. This clamp is specially designed for equipment that relies on bayonet connection to achieve rapid disassembly and assembly. It is suitable for the maintenance and repair of such equipment, and can in particular efficiently solve the problem of the difficulty in disassembling the self-powered monitoring device of mining idler roller.

[0006] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: An electrically operated three-jaw clamp for disassembly includes an electric push rod, a fixed cylinder, a sliding cylinder, and three jaws. The slider cylinder is fixed to the telescopic end of the electric push rod, and the fixed cylinder is fixed to the fixed end of the electric push rod; one end of each of the three claws is provided with a connecting block, and the three connecting blocks are provided with two pin holes, which are rotatably connected to the fixed cylinder and the slider cylinder respectively; the other end of the three claws expands and bends outward radially to form a curved claw structure for hooking.

[0007] The beneficial effects of this utility model are as follows: An electric push rod creates a relative displacement between the fixed cylinder and the sliding cylinder. The connecting block of the three claws is rotatably connected to the fixed cylinder and the sliding cylinder through two pin holes. Utilizing the relative displacement between the fixed cylinder and the sliding cylinder, the connecting block drives the three claws to rotate radially. The outwardly expanding and bending three claws then clamp the roller in the monitoring device. The three-claw structure achieves synchronous and uniform opening and closing through precise transmission connections, ensuring uniform force distribution and enabling rapid and stable clamping and separation operations, significantly reducing operation time compared to traditional tools. Simultaneously, its high-rigidity components and reliable linkage mechanism effectively prevent slippage and loosening during operation, ensuring a safe and controllable disassembly process and improving the success rate, providing a solid guarantee for the engineering application and promotion of this tool.

[0008] Based on the above technical solution, the present invention can be further improved as follows.

[0009] Furthermore, the fixed cylinder is connected to three connecting rods, and the sliding cylinder is connected to three locking blocks. The three locking blocks and the three connecting rods are located on the same straight line in a one-to-one correspondence. The two pin holes on the three connecting blocks are respectively rotatably connected to the corresponding connecting rods and locking blocks.

[0010] The advantage of adopting the above-mentioned further solution is that by restricting the position of the connecting rod and the locking block, it can accommodate the effective assembly between the three claws and the slider cylinder and the fixed cylinder.

[0011] Furthermore, all three connecting blocks are triangular block structures, with two pin holes on the connecting blocks located at two adjacent corners of the triangular block structure, and the claw portion located on the horizontal side of the connecting block adjacent to the slider cylinder.

[0012] The beneficial effect of adopting the above-mentioned further solution is that the pin hole connected to the fixed cylinder is used as the rotation point, and the pin hole connected to the slider cylinder is used as the adjustment point. The fixed cylinder, slider cylinder and the two pin holes of the connecting block form an irregular quadrilateral structure. The instability of the quadrilateral prevents the connecting block from getting stuck. By driving the small displacement of the fixed cylinder with the electric push rod, the three claws can be greatly expanded.

[0013] Furthermore, a fixing sleeve is also fixed to the fixed end of the electric push rod, and the fixing sleeve is fixed to the outer wall of the fixing sleeve.

[0014] The advantage of adopting the above-mentioned further solution is that it uses a fixed sleeve to protect the electric actuator.

[0015] Furthermore, multiple limiting rods are fixed around the fixed end of the electric push rod, and a limiting groove is provided inside the fixed sleeve to slide with the limiting rods.

[0016] The beneficial effect of adopting the above-mentioned further solution is that the limiting rod restricts the axial rotation of the fixed sleeve, and the limiting rod also serves as a connection between the fixed end of the electric push rod and the fixed sleeve, thus fixing the fixed sleeve without hindering the axial displacement of the telescopic end.

[0017] Furthermore, the fixed end of the electric push rod is also connected to a handle, and the gripping section of the handle is provided with anti-slip knurling.

[0018] The advantage of adopting the above-mentioned further solution is that it provides the operator with a stable fulcrum for applying force. The handle and the fixed base are rigidly connected to form a stable support structure. When the electric actuator is performing forward and backward transmission operations, it will not interfere with the grip stability of the handle, thus achieving no mutual interference between operation and transmission.

[0019] Furthermore, a slider sleeve is fixed on the inner wall of the slider cylinder. The slider sleeve is fixed on the telescopic end of the electric push rod, and one end of the slider sleeve abuts against or separates from the fixed cylinder.

[0020] The advantage of adopting the above-mentioned further solution is that the initial position of the three claws retracting inward is determined by the abutting of the slider sleeve and the fixed sleeve.

[0021] Furthermore, a push rod is also connected to the axis of the slider sleeve.

[0022] The advantage of adopting the above-mentioned further solution is that the depth position of the clamp is determined by the push rod.

[0023] Furthermore, the push rod and the slider sleeve are connected by a buffer pad.

[0024] The beneficial effect of adopting the above-mentioned further solution is to effectively buffer the impact force during the operation, prevent the electric actuator from being damaged due to direct force, and protect the electric actuator.

[0025] Furthermore, the end of the push rod away from the slider sleeve has an arc-shaped concave surface.

[0026] The beneficial effect of adopting the above-mentioned further solution is that by precisely fitting the arc-shaped concave surface to the central shaft of the idler roller, it can stably impact and apply force during operation, thus ensuring the working effect on the central shaft of the idler roller. Attached Figure Description

[0027] Figure 1 A schematic diagram of the structure of the electric disassembly three-jaw clamp provided by this utility model; Figure 2 A schematic diagram of the operation of the electric disassembly three-jaw clamp provided by this utility model; Figure 3 A schematic diagram of the structure of the electric actuator provided by this utility model; Figure 4 This is a schematic diagram of the structure of the fixing sleeve provided by this utility model; Figure 5 This is a schematic diagram of the structure of the fixing cylinder provided by this utility model; Figure 6 This is a schematic diagram of the structure of the slider cylinder provided by this utility model; Figure 7 This is a schematic diagram of the claw portion provided by this utility model.

[0028] The attached diagram lists the components represented by each number as follows: 1. Electric push rod; 11. Fixed end; 12. Telescopic end; 13. Limiting rod; 2. Fixed sleeve; 21. Limiting groove; 3. Top rod; 4. Handle; 5. Sliding cylinder; 51. Locking block; 6. Fixed cylinder; 61. Connecting rod; 7. Claw part; 71. Connecting block; 72. Pin hole; 8. Idler roller; 9. Monitoring device. Detailed Implementation

[0029] The principles and features of this utility model are described below. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.

[0030] according to Figures 1 to 7 As shown, this utility model provides an electric disassembly three-jaw clamp, including an electric push rod 1, a fixed cylinder 6, a slider cylinder 5, and three jaws 7.

[0031] The slider cylinder 5 is fixed to the telescopic end 12 of the electric push rod 1, and the fixed cylinder 6 is fixed to the fixed end 11 of the electric push rod 1; one end of each of the three claw parts 7 is provided with a connecting block 71, and the three connecting blocks 71 are provided with two pin holes 72, which are rotatably connected to the fixed cylinder 6 and the slider cylinder 5 respectively; the other end of the three claw parts 7 expands and bends outward radially to form a curved claw structure for hooking.

[0032] Specifically, three claws 7 are evenly distributed circumferentially at 120° on the outside of the fixed cylinder 6 and the sliding cylinder 5. The claws 7 are forged from Cr12MoV die steel and precision machined, achieving a hardness of HRC58-62 after quenching and low-temperature tempering. The front end configuration of each claw 7 precisely matches the jaw shape of the device to be disassembled. To further improve tool versatility, the claws 7 adopt a replaceable structure design, facilitating quick replacement of the appropriate claw head for different jaw specifications. The three claws 7 are connected to the fixture body via a hinged or sliding joint, enabling precise radial expansion or contraction relative to the body during operation. This ensures reliable engagement and disengagement during disassembly, preventing uneven loading or jamming.

[0033] In this embodiment, an electric push rod 1 creates a relative displacement between the fixed cylinder 6 and the sliding cylinder 5. The connecting block 71 of the three claw parts 7 is rotatably connected to the fixed cylinder 6 and the sliding cylinder 5 via two pin holes 72. Utilizing the relative displacement between the fixed cylinder 6 and the sliding cylinder 5, the connecting block 71 drives the three claw parts 7 to rotate radially. The outwardly expanding and bending of the three claw parts 7 then clamps the roller 8 in the monitoring device 9. The three-claw structure achieves synchronous and uniform opening and closing through a precise transmission connection, ensuring uniform force distribution and enabling rapid and stable clamping and separation operations, significantly reducing operation time compared to traditional tools. Simultaneously, its high-rigidity components and reliable linkage mechanism effectively prevent slippage and loosening during operation, ensuring a safe and controllable disassembly process and improving the success rate, providing a solid guarantee for the engineering application and promotion of this tool.

[0034] The three-jaw clamp provided by this invention significantly improves the efficiency, ease of operation, and safety of disassembly of bayonet-type devices. It can be widely used in multiple technical fields such as mining machinery maintenance, automobile manufacturing and assembly, industrial equipment repair, and precision instrument assembly, and has outstanding practical value and broad prospects for promotion.

[0035] Based on the above technical solution, the present invention can be further improved as follows.

[0036] Preferably, in this embodiment, the fixed cylinder 6 is connected to three connecting rods 61, and the sliding cylinder 5 is connected to three locking blocks 51. The three locking blocks 51 and the three connecting rods 61 are located on the same straight line, corresponding one-to-one. The two pin holes 72 on the three connecting blocks 71 are rotatably connected to the corresponding connecting rods 61 and locking blocks 51, respectively. By restricting the positions of the connecting rods 61 and locking blocks 51, effective assembly between the three claws 7 and the sliding cylinder 5 and the fixed cylinder 6 is achieved.

[0037] Specifically, according to Figure 5 and Figure 6As shown, both the fixed cylinder 6 and the sliding cylinder 5 are made of 40Cr alloy structural steel. The cylinder wall has a connecting seat composed of three connecting rods 61 and three locking blocks 51 evenly distributed 120° circumferentially. Each connecting seat is connected to two pin holes 72 on the three connecting blocks 71 via pin shafts. When the fixed cylinder 6 moves linearly with the electric push rod 1, the corresponding claw 7 is driven to rotate flexibly around the hinge point through the transmission action of the connecting blocks 71 and the pin shafts, realizing the opening and closing actions of the claw 7 and ensuring that the claw can stably complete the operation process of the electric push rod 1. Furthermore, the connecting rods 61 and locking blocks 51 are paired structures, so that the connecting blocks 71 are embedded between the paired connecting rods 61 and locking blocks 51, forming radial guide grooves and axial limiting surfaces that cooperate with each claw 7. This constrains the movement trajectory of the three claws 7, ensuring stable clamping and providing a structural foundation for the safe and reliable operation of the entire fixture.

[0038] Preferably, in the embodiment, all three connecting blocks 71 are triangular block structures, the two pin holes 72 on the connecting block 71 are located at two adjacent corners of the triangular block structure, and the claw part 7 is located on the horizontal side of the connecting block 71 adjacent to the slider cylinder 5.

[0039] Using the pin hole 72 connected to the fixed cylinder 6 as the rotation point and the pin hole 72 connected to the slider cylinder 5 as the adjustment point, the fixed cylinder 6, the slider cylinder 5, and the two pin holes 72 of the connecting block 71 form an irregular quadrilateral structure. The instability of the quadrilateral prevents the connecting block 71 from getting stuck. By driving the slider cylinder 5 with a small displacement through the electric push rod 1, a large expansion of the three claws 7 can be achieved. In addition, the two pin holes 72 on the connecting block 71 have different diameters to facilitate quick assembly between the connecting block 71 and the fixed cylinder 6 and the slider cylinder 5.

[0040] Preferably, in this embodiment, a fixing sleeve 2 is also fixed to the telescopic end 12 of the electric push rod 1, and the fixing sleeve 6 is fixed to the outer wall of the fixing sleeve 2. The fixing sleeve 2 is used to protect the electric push rod 1. Since the idler roller 8 is in a humid and highly corrosive working environment for a long time, its connection interface with the monitoring device 9 is prone to rust and dust accumulation, forming stubborn dirt. During disassembly, it is inevitable to scrape off the stubborn dirt. By wrapping the telescopic end 12 of the electric push rod 1 with the fixing sleeve 2, the stubborn dirt is prevented from entering the electric push rod 1 and affecting its normal operation.

[0041] Preferably, in this embodiment, multiple limiting rods 13 are fixed around the fixed end 11 of the electric push rod 1, and a limiting groove 21 is provided inside the fixed sleeve 2 to slide with the limiting rods 13. The limiting rods 13 restrict the axial rotation of the fixed sleeve 2, and also serve as a connection between the fixed end 11 of the electric push rod 1 and the fixed sleeve 6, fixing the fixed sleeve 6 without hindering the axial displacement of the telescopic end 12.

[0042] Specifically, the electric actuator 1 is made of 40Cr material, with a surface hardened to a hardness of HRC45-50. A fixing sleeve 2 is fitted around its outer side, and the two are tightly connected as one unit using high-strength adhesive. The fixing sleeve 2 is precision-machined from 40Cr alloy structural steel, undergoing overall tempering (quenching + high-temperature tempering) and surface chrome plating, possessing excellent deformation resistance and corrosion resistance. Its interior is machined with a smooth inner hole that matches the outer diameter of the electric actuator 1, allowing it to fit tightly onto the end of the electric actuator 1 for a stable connection (or direct adhesive connection). One external end is rigidly connected to the fixing sleeve 6 via a flange structure, with a locating pin hole and a fastening screw hole machined at the connection point, providing a reliable fulcrum for the precise movement of the slider cylinder 5 driving the claw 7.

[0043] Preferably, in this embodiment, a handle 4 is also connected to the fixed end 11 of the electric push rod 1. The gripping section of the handle 4 is provided with anti-slip knurling. The handle 4 is made of 6061-T6 aluminum alloy and is CNC machined into an ergonomic shape. The gripping section is provided with anti-slip knurling, which can provide a stable force application point for the operator. The handle 4 is rigidly connected to the fixed base to form a stable support structure. When the electric push rod 1 is performing forward and backward transmission operations, it will not interfere with the gripping stability of the handle 4, so that operation and transmission do not affect each other. The handle 4 is designed according to the ergonomic principle, and its shape fits the hand operation, making it easy for the user to hold and apply force stably. In addition, the electric push rod 1 has a mounting cavity on the side for accommodating the transmission mechanism to ensure the accuracy and reliability of power transmission. The handle 4 can be connected to the transmission mechanism built into the fixture body, and the transmission uses the electric push rod 1 to achieve linear braking. By applying axial tension to the fixture through the handle 4, the monitoring device 9 is separated from the shaft end of the roller 8, and the disassembly operation is completed.

[0044] Preferably, in this embodiment, a slider sleeve is also fixed to the inner wall of the slider cylinder 5. The slider sleeve is fixed to multiple limiting rods 13, and one end of the slider sleeve abuts against or separates from the fixed cylinder 6. The initial position of the three claws 7 retracting inward is determined by the abutment between the slider sleeve and the fixed sleeve 2. When the electric push rod 1 performs an extension and retraction action, it will drive the slider sleeve to slide linearly in sync. Thus, through the connection structure between the slider sleeve and the slider cylinder 5, the displacement change of the slider cylinder 5 is realized, completing the transmission of force and the adjustment of the component position.

[0045] Preferably, in this embodiment, a push rod 3 is also connected to the axis of the slider sleeve, and the push rod 3 extends beyond the slider sleeve. The push rod 3 is connected to the slider sleeve by a buffer pad. The end of the push rod 3 away from the slider sleeve has an arc-shaped concave surface. The top block is a cylindrical structure made of 45# steel. One side center is connected to the telescopic end 12 of the electric push rod 1 by a buffer pad (which can reduce the impact of force on the electric push rod 1), and the other end face is designed as an arc-shaped concave surface adapted to the central shaft of the idler roller 8. The push rod 3 can effectively buffer the impact force during the telescopic transmission of the electric push rod 1, avoiding damage to the electric push rod 1 due to direct force, and playing a role in protecting the electric push rod 1; at the same time, the arc-shaped concave surface can accurately fit the central shaft of the idler roller 8, stably impact and apply force during operation, and ensure the working effect on the central shaft of the idler roller 8.

[0046] Taking the disassembly of the self-powered monitoring device for mining idlers as an example, the monitoring device 9 is equipped with a jaw that matches the three-jaw clamp. The disassembly operation is carried out using the three-jaw clamp provided in this embodiment. Select the appropriate claw 7 according to the specifications of the monitoring device 9 and install it in place; The operator holds the handle 4 at the rear end, aligns the front end of the clamp with the monitoring device 9, and brings the three claws 7 into a retracted state, close to the device's latch. When the electric push rod 1 is turned on, the electric push rod 1 performs back-and-forth transmission, driving the slider sleeve and slider cylinder 5 to move. The front end, through the slider cylinder 5, drives the three claws 7 to rotate around the hinge point with the fixed cylinder 6, so that the front end of the claws 7 opens synchronously and gets into the device slot; Once the claw 7 is fully engaged, apply a pulling force to remove the monitoring device 9 from the idler roller 8.

[0047] Tests have shown that the three-jaw clamp is easy to operate when disassembling the self-powered monitoring device 9 of the mining idler roller 8, and can be completed by a single person. The disassembly efficiency is significantly improved compared with traditional tools, and it can effectively avoid damage to the device's clamping joint. It is suitable for use in complex environments such as underground mines.

[0048] During operation, the operator applies an operating torque through handle 4. This torque is converted into the activation of the electric push rod 1 via an internal transmission mechanism, thereby driving the three claws 7 to move radially. Under the action of the mechanism, the three claws 7 open synchronously and smoothly, and reliably engage with the corresponding slots of the device to be disassembled. Subsequently, by continuously applying axial tension, the monitoring device 9 can be separated from the shaft end of the idler roller 8.

[0049] This three-jaw clamp has a reasonable structural design and the following advantages: 1. Simple operation: alignment, clamping, and disassembly can be completed sequentially with a single rotational motion, significantly reducing the technical requirements and labor intensity for operators; 2. High adaptability: by replacing the seven jaw components of different specifications, it can be widely used for disassembling various devices with bayonet connection structures, demonstrating good versatility; 3. High work efficiency: it can achieve rapid alignment and reliable disassembly, greatly shortening disassembly and assembly time and improving maintenance efficiency compared to traditional hand tools; 4. Stable structure and precise transmission: the high coordination of each actuator effectively avoids slippage and uneven loading during disassembly, ensuring operational safety and reliability.

[0050] In summary, the three-jaw clamp provided by this invention significantly improves the efficiency, ease of operation, and safety of disassembly of bayonet-type devices. It can be widely used in multiple technical fields such as mining machinery maintenance, automobile manufacturing and assembly, industrial equipment repair, and precision instrument assembly, and has outstanding practical value and broad prospects for promotion.

[0051] The three-jaw clamp provided by this invention has the following significant advantages: (1) Excellent ease of operation: The ergonomically designed rear handle 4, combined with a highly efficient built-in transmission mechanism, can directly and smoothly convert the rotational torque applied by the operator into the radial expansion motion of the claw 7. The centering, clamping and disassembly processes can be completed continuously with a single operation. This design significantly reduces the professional skills required of the operator, effectively reduces labor intensity, and makes the disassembly operation more labor-saving and efficient.

[0052] (2) Strong versatility and adaptability: By adopting a modular 7-component jaw that can be quickly replaced, the clamp can be compatible with various specifications and types of bayonet connection structures. The clamp is not only suitable for the disassembly of mining idler roller monitoring devices, but can also be extended to multiple technical fields such as industrial equipment maintenance, automotive assembly and disassembly, and precision electronic equipment assembly, demonstrating excellent functional adaptability and wide application coverage in all aspects.

[0053] (3) Significantly improved work efficiency and reliability: The three-jaw structure achieves synchronous and uniform opening and closing through precise transmission connection, ensuring uniform force distribution and enabling fast and stable completion of clamping and separation operations, which can greatly reduce operation time compared with traditional tools. At the same time, its high rigidity components and reliable linkage mechanism effectively prevent slippage and loosening during operation, ensuring the safety and controllability of the disassembly process and improving the success rate of operation, providing a solid guarantee for the engineering application and promotion of this tool.

[0054] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0055] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0056] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0057] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0058] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0059] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. An electrically operated three-jaw clamp for disassembly, characterized in that, It includes an electric push rod (1), a fixed cylinder (6), a slider cylinder (5), and three claws (7); The slider cylinder (5) is fixed on the telescopic end (12) of the electric push rod (1), and the fixed cylinder (6) is fixed on the fixed end (11) of the electric push rod (1); one end of each of the three claw parts (7) is provided with a connecting block (71), and the three connecting blocks (71) are provided with two pin holes (72), which are rotatably connected to the fixed cylinder (6) and the slider cylinder (5) respectively; the other end of the three claw parts (7) expands and bends outward radially to form a curved claw structure for hooking.

2. The electrically operated three-jaw clamp for disassembly according to claim 1, characterized in that, The fixed cylinder (6) is connected to three connecting rods (61), and the slider cylinder (5) is connected to three locking blocks (51). The three locking blocks (51) and the three connecting rods (61) are located on the same straight line in a one-to-one correspondence. The two pin holes (72) on the three connecting blocks (71) are respectively rotatably connected to the corresponding connecting rods (61) and locking blocks (51).

3. The electrically operated three-jaw clamp for disassembly according to claim 2, characterized in that, All three connecting blocks (71) are triangular block structures. The two pin holes (72) on the connecting block (71) are located at two adjacent corners of the triangular block structure, and the claw (7) is located on the horizontal side of the connecting block (71) adjacent to the slider cylinder (5).

4. An electrically operated three-jaw clamp for disassembly according to any one of claims 1 to 3, characterized in that, A fixing sleeve (2) is also fixed on the fixed end (11) of the electric push rod (1), and the fixing sleeve (6) is fixed on the outer side wall of the fixing sleeve (2).

5. The electrically operated three-jaw clamp for disassembly according to claim 4, characterized in that, The electric push rod (1) has multiple limiting rods (13) on the periphery of the fixed end (11), and the fixed sleeve (2) has a limiting groove (21) that slides with the limiting rods (13).

6. The electrically operated three-jaw clamp according to claim 5, characterized in that, The fixed end (11) of the electric push rod (1) is also connected to a handle (4), and the grip section of the handle (4) is provided with anti-slip knurling.

7. The electrically operated three-jaw clamp for disassembly according to claim 5, characterized in that, A slider sleeve is also fixed on the inner wall of the slider cylinder (5). The slider sleeve is fixed on the telescopic end (12) of the electric push rod (1), and one end of the slider sleeve is abutted or separated from the fixed cylinder (6).

8. The electrically operated three-jaw clamp according to claim 7, characterized in that, A push rod (3) is also connected to the axis of the slider sleeve.

9. The electrically operated three-jaw clamp for disassembly according to claim 8, characterized in that, The top rod (3) is connected to the slider sleeve by a buffer pad.

10. The electrically operated three-jaw clamp according to claim 9, characterized in that, The end of the top rod (3) away from the slider sleeve has an arc-shaped concave surface.

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