Dismounting device for annular workpiece

Abstract

The utility model discloses an annular workpiece dismounting device which comprises a stroke rod, one end of the stroke rod is coaxially and fixedly connected with a threaded rod, the end, away from the stroke rod, of the threaded rod is coaxially and fixedly connected with a conical block, the small-diameter end of the conical block is fixedly connected with the threaded rod, the outer side of the conical block is sleeved with a columnar locking unit, and the outer side of the threaded rod is provided with an adjusting nut. The end, away from the threaded rod, of the stroke rod is fixedly connected with a first limiting block, the joint of the threaded rod and the stroke rod is fixedly connected with a second limiting block, the section, between the first limiting block and the second limiting block, of the stroke rod is sleeved with a driving hammer, and the length of the driving hammer is smaller than that of the stroke rod between the first limiting block and the second limiting block. According to the device, the conical block is matched with the locking unit, connection with the annular workpiece is achieved through friction force, the problem that no fixing point exists on the inner wall of the annular workpiece is solved, meanwhile, when the conical block moves along with the threaded rod, the conical block can further extrude the locking unit, and connection between the locking unit and the annular workpiece is more stable.

Description

TECHNICAL FIELD

[0001] The utility model belongs to mechanical equipment spare part dismantling technical field relates to annular work piece dismantling device. BACKGROUND

[0002] In the production process of mechanical equipment, in order to meet the relevant requirements need to install annular work piece in the hole, for example, install bearing, sealing ring etc. in the hole, in order to guarantee the connection effect, the inner wall between annular work piece and hole is often shrink fit. When the mechanical equipment needs to be maintained, annular work piece is often difficult to dismantle, because of the shrink fit between annular work piece and the inner wall of hole, the compression force between the two is larger, and the surface of annular work piece is relatively smooth without force point, which further improves the difficulty of dismantling.

[0003] In the prior art, there are two ways to dismantle annular work piece, one is to knock annular work piece and its connecting piece, so that the connection between the two is loose, and then the annular work piece is taken down, and the other method is to heat the annular work piece, so that the connection between the two is loose, and then the annular work piece is taken down. But the two ways are easy to damage the mechanical equipment, and also easy to hurt the dismantling personnel, so a kind of annular work piece dismantling device is needed to solve the above problems. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing annular work piece dismantling device, solves the problem that the annular work piece in the hole in the prior art is difficult to take out because of the too large compression force and the inner wall of annular work piece without force point.

[0005] The utility model adopts the technical scheme, including stroke lever, the one end of stroke lever is fixedly connected with the coaxial threaded rod, the one end away from stroke lever of threaded rod is fixedly connected with the coaxial taper block, and the one end of taper block with small diameter is fixedly connected with threaded rod, the outside of taper block is sleeved with the columnar locking unit, the outside of threaded rod is provided with adjusting nut, the one end away from threaded rod of stroke lever is fixedly connected with first limit block, the connecting place of threaded rod and stroke lever is fixedly connected with second limit block, the outside of stroke lever between first limit block and second limit block is sleeved with hammer, and the length of hammer is less than the length of stroke lever between first limit block and second limit block.

[0006] The utility model has the characteristics that:

[0007] The locking unit is composed of several smaller locking blocks, and the side of each locking block towards the taper block is attached to the outer surface of the taper block. A through groove is formed on the side of each locking block away from the taper block. The extension direction of the through groove is perpendicular to the axis of the taper block. The through grooves on the surface of each locking block are connected to each other to form an annular groove on the surface of the locking unit. A rubber ring is arranged in the annular groove.

[0008] When the rubber ring is contained in the annular groove, a protrusion is formed on the surface of the locking unit.

[0009] The locking spring is sleeved outside the threaded rod between the adjusting nut and the locking unit.

[0010] A gasket is arranged between the locking spring and the locking unit.

[0011] The energy storage spring is fixedly connected to the slide block at the other end, a sliding groove is formed in the surface of the stroke rod, the slide block is fixedly connected to the hammer through the sliding groove, the compression assembly is fixedly connected to one side of the first limiting block away from the stroke rod, and the buckle assembly is fixedly connected to the side of the second limiting block.

[0012] The inner wall of the first limiting block in communication with the stroke rod is provided with a thread, the compression assembly comprises a positioning block in threaded connection with the first limiting block, a lead screw is in threaded connection with the positioning block, the lead screw extends into the stroke rod and abuts against the slide block, a handle is fixedly connected to one end of the lead screw outside the stroke rod, and the handle is perpendicular to the axis of the lead screw.

[0013] The buckle assembly comprises a limiting groove formed in the side of the second limiting block, a rotating shaft is fixedly connected in the limiting groove, the rotating shaft is located at the middle section of the limiting groove, the rotating shaft is perpendicular to the axis of the stroke rod, an unlocking rod is sleeved on the outside of the rotating shaft, the hammer is fixedly connected to a clamping block on the side close to the second limiting block, the clamping block corresponds to the position of the limiting groove, and the clamping block is in the shape of a hook and is bent to one side of the stroke rod.

[0014] The utility model discloses the beneficial effect is:

[0015] 1. The utility model discloses a taper block and locking unit realize the connection of device and annular workpiece, realize the connection between the both through the friction between locking unit and annular workpiece inner wall, to adapt to the smooth inner wall of annular workpiece. Meanwhile in the dismounting process, the taper block will follow the threaded rod and depart from annular workpiece, at this moment, the taper block can further extrude locking unit, make the connection between locking unit and annular workpiece more stable.

[0016] 2. The utility model discloses the energy storage spring in the stroke rod is used for driving hammer movement, and simultaneously sets up the compression assembly to the compression of energy storage spring, and the energy storage spring after compression can provide greater impact force, thereby promoting annular workpiece to come off from the installation position, reduced the labor intensity of staff. DRAWINGS

[0017] Figure 1 It is the structure schematic diagram of the utility model annular workpiece dismounting device;

[0018] Figure 2 It is the structure schematic diagram of locking unit in the utility model;

[0019] Figure 3It is the structure schematic view of the stroke rod inside the utility model;

[0020] Figure 4 It is the structure schematic view of the compression assembly in the utility model;

[0021] Figure 5 It is the structure schematic view of the buckle assembly in the utility model.

[0022] In the figure: 1, stroke rod;2, threaded rod;3, taper block;4, locking unit;5, adjusting nut;6, first limit block;7, second limit block;8, hammer;9, locking block;10, through slot;11, rubber ring;12, locking spring;13, energy storage spring;14, sliding block;15, sliding slot;16, compression assembly;17, buckle assembly;18, positioning block;19, screw;20, handle;21, limit slot;22, rotating shaft;23, unlocking rod;24, clamping block. DETAILED DESCRIPTION

[0023] The utility model will be explained in detail below in combination with the drawings and specific embodiments.

[0024] Example one:

[0025] As Figure 1 shown, including stroke rod 1, one end of stroke rod 1 is coaxially fixedly connected with threaded rod 2, the end away from stroke rod 1 of threaded rod 2 is coaxially fixed with taper block 3, and the small-diameter end of taper block 3 is fixedly connected with threaded rod 2, the outside of taper block 3 is sleeved with cylindrical locking unit 4, threaded rod 2 outside is provided with adjusting nut 5, the end away from threaded rod 2 of stroke rod 1 is fixedly connected with first limit block 6, the connecting place of threaded rod 2 and stroke rod 1 is fixedly connected with second limit block 7, the outside of the section of stroke rod 1 between first limit block 6 and second limit block 7 is sleeved with hammer 8, and the length of hammer 8 is less than the length of stroke rod 1 between first limit block 6 and second limit block 7.

[0026] In the process of disassembling annular workpiece, the slope design of taper block 3 can change the outer diameter of locking unit 4, adjusting nut 5 can be rotated to make locking unit 4 move to the end with larger radius of taper block 3, the outer diameter of locking unit 4 gradually increases under the action of the slope of taper block 3, and the device is connected with annular workpiece through the friction force between locking unit 4 and the inner wall of annular workpiece.

[0027] When hammer 8 moves and collides with first limit block 6, recoil force can be formed, annular workpiece is pulled outward through the recoil force, so that the disassembly of annular workpiece is realized.Simultaneously, since the end with smaller radius of taper block 3 is connected with threaded rod 2, when taper block 3 moves to the side of hammer 8 following threaded rod 2 under the influence of recoil force, taper block 3 further extrudes locking unit 4, so that the connection between locking unit 4 and annular workpiece is more stable.

[0028] Embodiment Two

[0029] As shown in Figure 1 and Figure 2 , comprising a stroke rod 1, one end of the stroke rod 1 is coaxially fixedly connected with a threaded rod 2, the end away from the stroke rod 1 of the threaded rod 2 is coaxially fixedly connected with a taper block 3, and the end with a small diameter of the taper block 3 is fixedly connected with the threaded rod 2, the outside of the taper block 3 is sleeved with a cylindrical locking unit 4, the outside of the threaded rod 2 is provided with an adjusting nut 5, the end away from the threaded rod 2 of the stroke rod 1 is fixedly connected with a first limiting block 6, the connecting place of the threaded rod 2 and the stroke rod 1 is fixedly connected with a second limiting block 7, the outside of a section of the stroke rod 1 between the first limiting block 6 and the second limiting block 7 is sleeved with a hammer 8, and the length of the hammer 8 is less than the length of the stroke rod 1 between the first limiting block 6 and the second limiting block 7.

[0030] The locking unit 4 is composed of a plurality of small locking blocks 9, one side of each locking block 9 towards the taper block 3 is in close contact with the outer surface of the taper block 3, and the side away from the taper block 3 of each locking block 9 is provided with a through groove 10, the extension direction of the through groove 10 is perpendicular to the axis of the taper block 3, and the through grooves 10 on the surface of each locking block 9 are communicated with each other to form an annular groove on the surface of the locking unit 4, and a rubber ring 11 is arranged in the annular groove.

[0031] The locking unit 4 composed of a plurality of locking blocks 9 has strong deformation ability, can be expanded by equal ratio when the outer diameter of the locking unit 4 is expanded, can make the side surface of the locking unit 4 fully contact with the inner wall of the annular workpiece, and can improve the friction between the two, and through the arrangement of the rubber ring 11, the locking unit 4 can maintain the basic form during the deformation process, and after the disassembly work is completed, the locking unit 4 can be restored to the original state by relying on the elastic force of the rubber ring 11, so as to carry out the next disassembly work.

[0032] Embodiment Three

[0033] As shown in Figure 1 and Figure 2 , comprising a stroke rod 1, one end of the stroke rod 1 is coaxially fixedly connected with a threaded rod 2, the end away from the stroke rod 1 of the threaded rod 2 is coaxially fixedly connected with a taper block 3, and the end with a small diameter of the taper block 3 is fixedly connected with the threaded rod 2, the outside of the taper block 3 is sleeved with a cylindrical locking unit 4, the outside of the threaded rod 2 is provided with an adjusting nut 5, the end away from the threaded rod 2 of the stroke rod 1 is fixedly connected with a first limiting block 6, the connecting place of the threaded rod 2 and the stroke rod 1 is fixedly connected with a second limiting block 7, the outside of a section of the stroke rod 1 between the first limiting block 6 and the second limiting block 7 is sleeved with a hammer 8, and the length of the hammer 8 is less than the length of the stroke rod 1 between the first limiting block 6 and the second limiting block 7.

[0034] The locking unit 4 is composed of several smaller locking blocks 9, each of which is attached to the outer surface of the taper block 3 on one side, and each of which is provided with a through groove 10 on the side away from the taper block 3, the extension direction of the through groove 10 being perpendicular to the axis of the taper block 3, and the through grooves 10 on the surface of each locking block 9 being connected to each other to form an annular groove on the surface of the locking unit 4, and a rubber ring 11 being arranged in the annular groove.

[0035] When the rubber ring 11 is accommodated in the annular groove, a protrusion is formed on the surface of the locking unit 4.

[0036] A locking spring 12 is arranged between the locking unit 4 and the adjusting nut 5, and the locking spring 12 is sleeved on the outer side of the threaded rod 2.

[0037] A gasket is arranged between the locking spring 12 and the locking unit 4.

[0038] When the locking unit 4 is connected to the annular workpiece, the rubber ring 11 can deform by itself and fully adhere to the inner wall of the annular workpiece, thereby improving the friction between the two and making the connection between the two more stable.

[0039] The locking spring 12 transmits pressure between the locking unit 4 and the adjusting nut 5, and when the adjusting nut 5 is rotated towards the taper block 3, the locking spring 12 deforms and accumulates elastic potential energy while transmitting pressure. When the adjusting nut 5 is loosened during disassembly, the locking spring 12 can support the locking unit 4 by its own elastic force, preventing the connection between the locking unit 4 and the annular workpiece from loosening.

[0040] Since the locking unit 4 is composed of multiple locking blocks 9, when the locking spring 12 applies pressure to the locking unit 4, a single locking block 9 is more likely to be affected by the pressure first, causing the locking unit 4 to deform unevenly. Therefore, a gasket is arranged between the locking unit 4 and the locking spring 12 to evenly distribute the force on the locking blocks 9 in the locking unit 4.

[0041] Embodiment Four:

[0042] As shown in Figs. Figure 1 and Figure 3 , it comprises a stroke rod 1, one end of the stroke rod 1 being coaxially fixedly connected with a threaded rod 2, the threaded rod 2 being coaxially fixedly connected with a taper block 3 at the end away from the stroke rod 1, the taper block 3 being fixedly connected with the threaded rod 2 at the end with a smaller diameter, a cylindrical locking unit 4 being sleeved on the outer side of the taper block 3, an adjusting nut 5 being arranged on the outer side of the threaded rod 2, a first limiting block 6 being fixedly connected with the end of the stroke rod 1 away from the threaded rod 2, a second limiting block 7 being fixedly connected with the connection between the threaded rod 2 and the stroke rod 1, a hammer 8 being sleeved on the outer side of the stroke rod 1 between the first limiting block 6 and the second limiting block 7, the length of the hammer 8 being less than the length of the stroke rod 1 between the first limiting block 6 and the second limiting block 7.

[0043] The inner side of the stroke rod 1 close to the second limiting block 7 is fixedly connected with an energy storage spring 13 in the axial direction, the other end of the energy storage spring 13 is fixedly connected with a sliding block 14, the surface of the stroke rod 1 is provided with a sliding groove 15, the surface of the sliding block 14 is fixedly connected with the hammer 8 through the sliding groove 15, the side away from the stroke rod 1 of the first limiting block 6 is fixedly connected with a compression assembly 16, and the side of the second limiting block 7 is fixedly connected with a buckle assembly 17.

[0044] The hammer 8 can accumulate energy by compressing the energy storage spring 13 during movement to the side of the second limiting block 7, the compression assembly 16 can help the energy storage spring 13 accumulate potential energy, and the buckle assembly 17 can temporarily store energy, when the energy storage spring 13 releases potential energy, it can drive the hammer 8 to move to the side of the first limiting block 6, and the elastic potential energy is converted into kinetic energy, so that the speed of the hammer 8 is faster, and the recoil force generated when the hammer 8 hits the first limiting block 6 is larger, which is helpful for the disassembly of the annular workpiece.

[0045] Example five

[0046] As shown in Figure 1 , Figure 3 and Figure 4 , including stroke rod 1, one end of stroke rod 1 is coaxially fixedly connected with threaded rod 2, one end away from stroke rod 1 of threaded rod 2 is coaxially fixedly connected with taper block 3, and one end of taper block 3 with small diameter is fixedly connected with threaded rod 2, the outer side of taper block 3 is sleeved with cylindrical locking unit 4, the outer side of threaded rod 2 is provided with adjusting nut 5, one end away from threaded rod 2 of stroke rod 1 is fixedly connected with first limiting block 6, the connection between threaded rod 2 and stroke rod 1 is fixedly connected with second limiting block 7, the outer side of stroke rod 1 between first limiting block 6 and second limiting block 7 is sleeved with hammer 8, and the length of hammer 8 is less than the length of stroke rod 1 between first limiting block 6 and second limiting block 7.

[0047] The inner side of the stroke rod 1 close to the second limiting block 7 is fixedly connected with an energy storage spring 13 in the axial direction, the other end of the energy storage spring 13 is fixedly connected with a sliding block 14, the surface of the stroke rod 1 is provided with a sliding groove 15, the surface of the sliding block 14 is fixedly connected with a hammer 8 through the sliding groove 15, the side away from the stroke rod 1 of the first limiting block 6 is fixedly connected with a compression assembly 16, and the side of the second limiting block 7 is fixedly connected with a buckle assembly 17.

[0048] The inner wall of the first limiting block 6 in communication with the stroke rod 1 is provided with a thread, the compression assembly 16 includes a positioning block 18 threadedly connected with the first limiting block 6, a lead screw 19 is threadedly connected in the positioning block 18, the lead screw 19 extends into the stroke rod 1 and abuts against the sliding block 14, one end of the lead screw 19 outside the stroke rod 1 is fixedly connected with a handle 20, and the handle 20 is perpendicular to the axis of the lead screw 19.

[0049] The rotation of the screw rod 19 in the positioning block 18 can gradually compress the energy storage spring 13, accumulate elastic potential energy and reduce the physical exertion of the operator. The positioning block 18 is arranged between the first limiting block 6 and the screw rod 19, and after the energy storage spring 13 is compressed to a specified position, the positioning block 18 only needs to be taken out from the first limiting block 6 to complete the disassembly of the screw rod 19, without the need to rotate the screw rod out, thereby reducing repeated operations and improving the disassembly efficiency.

[0050] Embodiment six:

[0051] As shown in Figure 1 , Figure 3 and Figure 5 , it comprises a stroke rod 1, one end of the stroke rod 1 is coaxially fixedly connected with a threaded rod 2, the end of the threaded rod 2 away from the stroke rod 1 is coaxially fixedly connected with a taper block 3, and the end of the taper block 3 with a small diameter is fixedly connected with the threaded rod 2, the outside of the taper block 3 is sleeved with a cylindrical locking unit 4, the outside of the threaded rod 2 is provided with an adjusting nut 5, the end of the stroke rod 1 away from the threaded rod 2 is fixedly connected with a first limiting block 6, the connecting place of the threaded rod 2 and the stroke rod 1 is fixedly connected with a second limiting block 7, the outside of the stroke rod 1 between the first limiting block 6 and the second limiting block 7 is sleeved with a hammer 8, and the length of the hammer 8 is less than the length of the stroke rod 1 between the first limiting block 6 and the second limiting block 7.

[0052] The inside of the stroke rod 1 close to the second limiting block 7 is fixedly connected with an energy storage spring 13 in the axial direction, the other end of the energy storage spring 13 is fixedly connected with a sliding block 14, the surface of the stroke rod 1 is provided with a sliding groove 15, the surface of the sliding block 14 is fixedly connected with the hammer 8 through the sliding groove 15, one side of the first limiting block 6 away from the stroke rod 1 is fixedly connected with a compression assembly 16, and the side of the second limiting block 7 is fixedly connected with a buckle assembly 17.

[0053] The buckle assembly 17 comprises a limiting groove 21 provided in the side of the second limiting block 7, a rotating shaft 22 fixedly connected in the limiting groove 21, the rotating shaft 22 located at the middle segment of the limiting groove 21, and the rotating shaft 22 perpendicular to the axis of the stroke rod 1, the outside of the rotating shaft 22 is sleeved with an unlocking rod 23, one side of the hammer 8 close to the second limiting block 7 is fixedly connected with a clamping block 24, and the clamping block 24 corresponds to the position of the limiting groove 21, and the end of the clamping block 24 is hook-shaped and curved to one side of the stroke rod 1.

[0054] In the compression process of the energy storage spring 13, the hammer 8 moves to one side of the second limiting block 7, the hook-shaped structure of the clamping block 24 extends into the limiting groove 21 to limit the movement of the hammer 8. When the clamping block 24 extends into the limiting groove 21, one end of the unlocking rod 23 is pressed down, and the other end of the unlocking rod 23 is pressed to release the locking state of the hammer 8.

[0055] The device is connected with the ring-shaped workpiece to be disassembled through the connection between the taper block 3 and the locking unit 4, and the connection between the locking unit 4 with the enlarged diameter and the ring-shaped workpiece is realized by the friction force between them to adapt to the smooth inner wall of the ring-shaped workpiece. At the same time, the device accumulates potential energy through the energy storage spring 13 to drive the hammer 8 to hit the first limiting block 6, and a greater impact force can be realized by replacing the spring with different stiffness coefficients, and the ring-shaped workpiece can be taken out by single impact, thereby improving the disassembly efficiency.

[0056] Method for use:

[0057] When the disassembly work of the ring-shaped workpiece is performed, first, the taper block 3 connected with the locking unit 4 is put into the hole of the ring-shaped workpiece to be disassembled, and then the adjusting nut 5 is screwed to the side of the ring-shaped workpiece until the adjusting nut cannot be rotated, so that the disassembly device is connected with the ring-shaped workpiece to be disassembled through the friction force.

[0058] After the disassembly device is connected with the ring-shaped workpiece, the positioning block 18 is screwed into the first limiting block 6, and then the handle 20 is used to screw the lead screw 19 into the stroke rod 1, so that the energy storage spring 13 is compressed while driving the hammer 8 to move to the side close to the first limiting block 6. When the hammer 8 moves to the limit position, the clamping block 24 extends into the limiting groove 21 to limit the movement of the hammer 8 to the side of the first limiting block 6, and the clamping block 24 presses the one end of the unlocking rod 23 into the bottom end of the limiting groove 21.

[0059] After the hammer 8 is fixed, the positioning block 18 is rotated together with the lead screw 19 to be taken out from the stroke rod 1. Then the first limiting block 6 is held to keep the device coaxial with the ring-shaped workpiece, and the unlocking rod 23 is pressed down to push the clamping block 24 out of the limiting groove 21 through the lever principle. Under the action of the energy storage spring 13, the hammer 8 moves quickly to the side of the first limiting block 6 and collides with the first limiting block 6, so that the device moves away from the ring-shaped workpiece, thereby taking out the ring-shaped workpiece.

[0060] After the ring-shaped workpiece is taken out, the adjusting nut 5 is rotated to the side of the second limiting block 7 to release the extrusion of the locking spring 12 on the locking unit 4, and at this time the ring-shaped workpiece can be taken off from the locking unit 4, and the disassembly is completed.

Claims

1. A ring workpiece dismounting device, characterized by The utility model provides a kind of trip lever, including trip lever (1), one end of the trip lever (1) is coaxially fixedly connected with threaded rod (2), the threaded rod (2) is coaxially fixed with taper block (3) away from trip lever (1) one end, and the taper block (3) diameter small one end is fixedly connected with threaded rod (2), the outside of the taper block (3) is sleeved with cylindrical locking unit (4), the threaded rod (2) outside is provided with adjusting nut (5), the trip lever (1) is fixedly connected with first limit block (6) away from threaded rod (2) one end, the threaded rod (2) is fixedly connected with second limit block (7) with the junction of trip lever (1), the trip lever (1) is sleeved with hammer (8) between first limit block (6) and second limit block (7) one side, the length of the hammer (8) is less than the length of trip lever (1) between first limit block (6) and second limit block (7).

2. The ring workpiece dismounting device according to claim 1, characterized in that The locking unit (4) is composed of several smaller locking blocks (9), one side of each locking block (9) towards the taper block (3) is attached to the outer surface of the taper block (3), a through groove (10) is formed on the side of each locking block (9) away from the taper block (3), the extension direction of the through groove (10) is perpendicular to the axis of the taper block (3), and the through grooves (10) on the surface of each locking block (9) are interconnected to form an annular groove on the surface of the locking unit (4), and a rubber ring (11) is arranged in the annular groove.

3. The ring workpiece dismounting device according to claim 2, characterized in that The rubber ring (11) forms a protrusion on the surface of the locking unit (4) when contained in the annular groove.

4. The ring workpiece dismounting device according to claim 2, characterized in that A locking spring (12) is arranged between the adjusting nut (5) and the locking unit (4), and the locking spring (12) is sleeved on the outside of the threaded rod (2).

5. The ring workpiece dismounting device according to claim 4, characterized in that A gasket is arranged between the locking spring (12) and the locking unit (4).

6. The ring workpiece disassembly apparatus according to claim 1, wherein An energy storage spring (13) is fixedly connected to the inside of the trip lever (1) near the second limit block (7) in the axial direction, the other end of the energy storage spring (13) is fixedly connected with a sliding block (14), a sliding groove (15) is formed on the surface of the trip lever (1), the sliding block (14) is fixedly connected with the hammer (8) by penetrating the sliding groove (15), a compression assembly (16) is fixedly connected to the side of the first limit block (6) away from the trip lever (1), and a buckle assembly (17) is fixedly connected to the side of the second limit block (7).

7. The ring workpiece dismounting device according to claim 6, characterized in that The inner wall of the first limit block (6) in communication with the trip lever (1) is provided with a thread, the compression assembly (16) includes a positioning block (18) threadedly connected with the first limit block (6), a lead screw (19) is threadedly connected in the positioning block (18), the lead screw (19) extends into the trip lever (1) and abuts against the sliding block (14), a handle (20) is fixedly connected to the end of the lead screw (19) outside the trip lever (1), and the axis of the handle (20) is perpendicular to the lead screw (19).

8. The ring workpiece dismounting device according to claim 6, characterized in that The buckle assembly (17) comprises a limiting groove (21) formed in the side surface of the second limiting block (7), a rotating shaft (22) is fixedly connected in the limiting groove (21), the rotating shaft (22) is located at the middle section of the limiting groove (21), the rotating shaft (22) is perpendicular to the axis of the stroke lever (1), an unlocking lever (23) is sleeved on the outer side of the rotating shaft (22), a clamping block (24) is fixedly connected to the side of the hammer (8) close to the second limiting block (7), the clamping block (24) corresponds to the position of the limiting groove (21), and the end of the clamping block (24) is hook-shaped and is bent to the side of the stroke lever (1).

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