Reamed hole bolt dismounting device

Abstract

The invention provides a reamed hole bolt dismounting device. The reamed hole bolt dismounting device comprises a clamping base, a pushing oil cylinder and an oil pump. The clamping seat is provided with a clamping groove, a groove opening of the clamping groove is formed in one side, in the first direction, of the clamping seat, the clamping groove penetrates through the clamping seat in the second direction perpendicular to the first direction, the clamping groove is provided with two side groove walls oppositely arranged in the third direction, and the third direction is perpendicular to the first direction and the second direction. The third direction is parallel to the axial direction of the reamed hole bolt; the pushing oil cylinder comprises a cylinder body and a push rod, the cylinder body is connected to one side of the clamping seat in the third direction, the push rod is telescopically arranged on the cylinder body and extends in the third direction, and the push rod is provided with a pushing end extending into the clamping groove; the oil pump is connected to the cylinder through an oil pipe; when the reamed hole bolt dismounting device is used for dismounting the reamed hole bolt, the groove walls of the two sides of the clamping groove abut against the surfaces of the two sides of the workpiece respectively, and the oil pump drives the pushing oil cylinder to enable the push rod to push the reamed hole bolt to deviate from the cylinder body and move out of the workpiece.

Description

Technical Field

[0001] The present disclosure relates to the technical field of production and manufacturing tools for locomotives, and particularly to a device for disassembling clearance fit bolts. Background Art

[0002] When the bogie of a locomotive is hoisted as a whole, the force transmission between the frame of the bogie and the drive device is realized through mechanisms and components such as motor suspension, lifting rings, and clearance fit bolts. After the bogie is hoisted, it is necessary to disassemble the clearance fit bolts. However, due to possible problems such as rust between the clearance fit bolts and structures such as the front cover, relying on traditional manual disassembly methods, there are often difficulties in disassembling the clearance fit bolts, which seriously affects the production efficiency of locomotives. Summary of the Invention

[0003] A main object of the present disclosure is to overcome at least one defect of the above-mentioned prior art, and to provide a device for disassembling clearance fit bolts that can achieve convenient disassembly of clearance fit bolts.

[0004] To achieve the above object, the present disclosure adopts the following technical solutions:

[0005] According to one aspect of the present disclosure, there is provided a device for disassembling clearance fit bolts for disassembling clearance fit bolts installed on a workpiece; wherein, the device for disassembling clearance fit bolts includes a clamping seat, a jacking oil cylinder, and an oil pump; the clamping seat has a clamping groove, the notch of the clamping groove is arranged on one side of the clamping seat in a first direction, the clamping groove penetrates the clamping seat along a second direction perpendicular to the first direction, the clamping groove has two side walls arranged opposite to each other in a third direction, the third direction is perpendicular to the first direction and perpendicular to the second direction, and the third direction is parallel to the axial direction of the clearance fit bolt; the jacking oil cylinder includes a cylinder body and a push rod, the cylinder body is connected to one side of the clamping seat in the third direction, the push rod is telescopically arranged in the cylinder body and extends along the third direction, and the push rod has a pushing end extending into the clamping groove; the oil pump is connected to the cylinder body via an oil pipe; wherein, when the device for disassembling clearance fit bolts disassembles the clearance fit bolts, the two side walls of the clamping groove respectively abut against the two side surfaces of the workpiece, and the oil pump drives the jacking oil cylinder to make the push rod push the clearance fit bolt away from the cylinder body and out of the workpiece.

[0006] According to one embodiment of the present disclosure, the oil pump is a pneumatic oil pump, and the pneumatic oil pump includes an oil pump body and a pneumatic mechanism; the oil pump body is connected to the cylinder body of the jacking oil cylinder via an air pipe; the pneumatic mechanism is connected to the oil pump body, and when the device for disassembling clearance fit bolts disassembles the clearance fit bolts, the operator operates the pneumatic mechanism to deliver compressed air to the oil pump body as a power source.

[0007] According to one embodiment of the present disclosure, the pneumatic mechanism is a pedal-operated pneumatic mechanism.

[0008] According to one embodiment of the present disclosure, the cylinder block of the jacking oil cylinder is provided with an oil inlet for connecting the oil pipe; wherein, a quick connector is provided at the oil inlet, and the oil inlet is connected to the oil pipe via the quick connector.

[0009] According to one embodiment of the present disclosure, the outer diameter of the pushing end portion of the push rod is greater than the outer diameter of the portion of the push rod other than the pushing end portion.

[0010] According to one embodiment of the present disclosure, the two side walls of the clamping groove are respectively a first groove wall and a second groove wall, and the first groove wall is closer to the jacking oil cylinder than the second groove wall; wherein, a relief notch penetrating along the second direction is provided on the second groove wall, the relief notch opens on one side of the clamping seat in the first direction and is connected to the notch of the clamping groove, and the width of the relief notch in the second direction is greater than or equal to the width of the nut portion of the precision reamed bolt in the second direction.

[0011] According to one embodiment of the present disclosure, the clamping seat includes a first seat body and a second seat body, the first seat body and the second seat body jointly form the clamping groove, and the two side walls of the clamping groove are respectively located on the first seat body and the second seat body; wherein, the first seat body and the second seat body are detachably and adjustably fixedly connected via a connecting structure, so that the distance between the two side walls of the clamping groove in the third direction is adjustable.

[0012] According to one embodiment of the present disclosure, the first seat body and the second seat body partially overlap, a first connection hole is provided in the overlapping portion of the first seat body, a second connection hole is provided in the overlapping portion of the second seat body, and the connecting structure passes through the first connection hole and the second connection hole to fixedly connect the first seat body and the second seat body; wherein, at least one of the first connection hole and the second connection hole includes a plurality of spaced apart along the third direction.

[0013] According to one embodiment of the present disclosure, the clamping seat is connected with a handle.

[0014] According to one embodiment of the present disclosure, the clamping seat is welded to the cylinder block of the jacking oil cylinder.

[0015] As can be seen from the above technical solutions, the advantages and positive effects of the precision reamed bolt disassembly device proposed by the present disclosure are as follows:

[0016] The disassembling device for clearance - fit bolts proposed by the present disclosure includes a clamping seat, a jacking cylinder and an oil pump; the clamping seat has a clamping groove, the notch of the clamping groove is arranged on one side of the clamping seat in the first direction, the clamping groove penetrates through the clamping seat along a second direction perpendicular to the first direction, the clamping groove has two side walls arranged oppositely in a third direction, the third direction is perpendicular to the first direction and perpendicular to the second direction, and the third direction is parallel to the axial direction of the clearance - fit bolt; the jacking cylinder includes a cylinder body and a push rod, the cylinder body is connected to one side of the clamping seat in the third direction, the push rod is telescopically arranged in the cylinder body and extends along the third direction, and the push rod has a pushing end extending into the clamping groove; the oil pump is connected to the cylinder body via an oil pipe; when the disassembling device for clearance - fit bolts disassembles the clearance - fit bolt, the two side walls of the clamping groove respectively abut against the two side surfaces of the workpiece, and the oil pump drives the jacking cylinder to make the push rod push against the clearance - fit bolt to move the clearance - fit bolt out of the workpiece away from the cylinder body. Through the above design, the present disclosure uses the clamping seat to position the relative position of the jacking cylinder and the workpiece, and uses the piston rod of the jacking cylinder to push against the clearance - fit bolt to disassemble it from the workpiece, thereby enabling fast and convenient disassembly operation of the clearance - fit bolt and significantly improving the production efficiency of the locomotive. In addition, the disassembling device for clearance - fit bolts proposed by the present disclosure has a simple structure and is easy to implement. Brief Description of the Drawings

[0017] By considering the following detailed description of the preferred embodiments of the present disclosure in conjunction with the accompanying drawings, various objectives, features and advantages of the present disclosure will become more apparent. The drawings are only exemplary diagrams of the present disclosure and are not necessarily drawn to scale. In the drawings, the same reference numerals always represent the same or similar components. Among them:

[0018] Figure 1 is a schematic structural diagram of a disassembling device for clearance - fit bolts shown according to an exemplary embodiment;

[0019] Figure 2 is Figure 1 a partial cross - sectional view of

[0020] The reference numerals are described as follows:

[0021] 100. Disassembling device for clearance - fit bolts;

[0022] 110. Clamping seat;

[0023] 111. Clamping groove;

[0024] 1111. First groove wall;

[0025] 1112. Second groove wall;

[0026] 1113. Avoidance notch;

[0027] 112. Handle;

[0028] 120. Jacking cylinder;

[0029] 121. Cylinder block;

[0030] 1211. Inlet port;

[0031] 1212. Quick - fitting joint;

[0032] 122. Push rod;

[0033] 1221. Pushing end;

[0034] 200. Workpiece;

[0035] 210. Mounting hole;

[0036] 300. Precision - reamed bolt;

[0037] 310. Nut part;

[0038] 320. Thread part;

[0039] 330. Connecting part. Detailed implementation manners

[0040] Typical embodiments embodying the features and advantages of the present disclosure will be described in detail in the following description. It should be understood that the present disclosure can have various variations in different embodiments, all of which do not depart from the scope of the present disclosure, and the descriptions and drawings therein are for illustrative purposes in nature and not for limiting the present disclosure.

[0041] In the following description of different exemplary embodiments of the present disclosure, reference is made to the accompanying drawings, which form a part of the present disclosure, and in which different exemplary structures, systems, and steps that can implement various aspects of the present disclosure are shown by way of example. It should be understood that other specific solutions of components, structures, exemplary devices, systems, and steps can be used, and structural and functional modifications can be made without departing from the scope of the present disclosure. Moreover, although terms such as "above", "between", "inside" etc. may be used in this specification to describe different exemplary features and elements of the present disclosure, these terms are used herein only for convenience, for example, according to the directions of the examples described in the drawings. Nothing in this specification should be construed as requiring a specific three - dimensional direction of the structure to fall within the scope of the present disclosure.

[0042] Refer to Figure 1, which representatively shows the structural schematic diagram of the reamed hole bolt disassembly device 100 proposed by the present disclosure, and further shows the reamed hole bolt 300 therein. In this exemplary embodiment, the present disclosure is described by taking the disassembly of the reamed hole bolt 300 used for the overall lifting of the bogie of a locomotive as an example. It is easy for those skilled in the art to understand that, in order to apply the relevant design of the present disclosure to the disassembly of the reamed hole bolt 300 on other types of workpieces 200 of the locomotive, various modifications, additions, substitutions, deletions or other changes are made to the following specific embodiments, and these changes are still within the scope of the principle of the reamed hole bolt disassembly device 100 proposed by the present disclosure.

[0043] As Figure 1 shown, in an embodiment of the present disclosure, the reamed hole bolt disassembly device 100 proposed by the present disclosure is used to disassemble the reamed hole bolt 300 installed on the workpiece 200 (such as a bogie). Specifically, the reamed hole bolt 300 includes a nut portion 310, a threaded portion 320, and a coupling portion 330 connected between the nut portion 310 and the threaded portion 320, and the reamed hole bolt 300 passes through the workpiece 200 (such as passing through the mounting hole 210 of the workpiece 200 in a clearance fit manner) and is coupled to the workpiece 200 with the coupling portion 330. With reference to Figure 2 , Figure 2 which representatively shows a partial cross-sectional view of the reamed hole bolt 300 that can embody the principle of the present disclosure, in which the reamed hole bolt 300 and the clamping seat 110 are specifically sectioned, and at the same time, the jacking oil cylinder 120 is partially sectioned. In addition, Figure 2 the workpiece 200 is further shown therein. The structures, connection methods, and functional relationships of the main components of the reamed hole bolt disassembly device 100 proposed by the present disclosure will be described in detail below with reference to the above-mentioned drawings.

[0044] As Figure 1 and Figure 2As shown, in an embodiment of the present disclosure, the reamed hole bolt disassembly device 100 proposed by the present disclosure includes a clamping seat 110, a jacking oil cylinder 120, and an oil pump. The clamping seat 110 serves as the main force-bearing component of the disassembly device. The clamping seat 110 has a clamping groove 111. The notch of the clamping groove 111 is provided on one side of the clamping seat 110 in the first direction, and the first direction can refer to the direction D1 shown in the accompanying drawings. Moreover, the clamping groove 111 penetrates the clamping seat 110 in the second direction perpendicular to the first direction, and the second direction can refer to the direction D2 shown in the accompanying drawings. The clamping groove 111 has two side groove walls arranged oppositely in the third direction. The third direction is perpendicular to the first direction and perpendicular to the second direction. The third direction can refer to the direction D3 shown in the accompanying drawings, and the third direction is parallel to the axial direction of the reamed hole bolt 300. The jacking oil cylinder 120 includes a cylinder block 121 and a push rod 122. The cylinder block 121 is connected to one side of the clamping seat 110 in the third direction. The push rod 122 is telescopically arranged in the cylinder block 121 and extends in the third direction. The push rod 122 has a pushing end 1221 extending into the clamping groove 111. Accordingly, the jacking oil cylinder 120, as an actuator, can convert the pressure energy of the hydraulic oil into mechanical energy to realize the linear reciprocating motion of the push rod 122. The oil pump is connected to the cylinder block 121 via an oil pipe. Accordingly, when the reamed hole bolt disassembly device 100 proposed by the present disclosure disassembles the reamed hole bolt 300, the two side groove walls of the clamping groove 111 respectively abut against the two side surfaces of the workpiece 200. The oil pump drives the jacking oil cylinder 120 to make the push rod 122 push against the reamed hole bolt 300 to move it out of the workpiece 200 away from the cylinder block 121. Through the above design, the present disclosure uses the clamping seat 110 to position the relative position of the jacking oil cylinder 120 and the workpiece 200, and uses the cylinder rod of the jacking oil cylinder 120 to push against the reamed hole bolt 300 to disassemble it from the workpiece 200. Accordingly, the rapid and convenient disassembly operation of the reamed hole bolt 300 can be realized, and the production efficiency of the locomotive can be significantly improved. Specifically, based on the hydraulic principle, the jacking oil cylinder 120 can generate sufficient thrust to realize the rapid disassembly of the reamed hole bolt 300, which can shorten the operation time, reduce the operation intensity, improve the operation quality, avoid other losses caused by the difficult disassembly of the reamed hole bolt 300, indirectly reduce the maintenance cost, and at the same time can take into account advantages such as portability. In addition, the reamed hole bolt disassembly device 100 proposed by the present disclosure has a simple structure and is easy to implement.

[0045] In an embodiment of the present disclosure, the oil pump can be a pneumatic oil pump, which can use compressed air as a power source to output hydraulic power to the jacking cylinder 120. Specifically, the pneumatic oil pump includes an oil pump body and a pneumatic mechanism. The oil pump body is connected to the cylinder block 121 of the jacking cylinder 120 via an air duct. The pneumatic mechanism is connected to the oil pump body. When the dowel pin bolt disassembling device 100 disassembles the dowel pin bolt 300, the operator can operate the pneumatic mechanism to deliver compressed air to the oil pump body as a power source. Through the above design, the present disclosure can achieve stable output of the power source of the pneumatic oil pump. On this basis, by adjusting the intake pressure of the compressed air of the pneumatic mechanism, flexible adjustment of the power source can be realized to adapt to different hydraulic drive requirements.

[0046] Based on the design that the oil pump is a pneumatic oil pump and includes a pneumatic mechanism, in an embodiment of the present disclosure, the pneumatic mechanism of the pneumatic oil pump can be a pedal-type pneumatic mechanism. Accordingly, when the dowel pin bolt disassembling device 100 disassembles the dowel pin bolt 300, the operator can output the power source by stepping on the pneumatic mechanism, thereby controlling the pneumatic oil pump to drive the jacking cylinder 120 to work. Through the above design, the present disclosure enables the operator to operate the dowel pin bolt disassembling device 100 more conveniently. For example, since the pedal-type pneumatic mechanism only requires stepping operation, the operator can free both hands to better support the clamping seat 110, thereby more calmly realizing single-person disassembly operation.

[0047] As Figure 1 and Figure 2 shown, in an embodiment of the present disclosure, the cylinder block 121 of the jacking cylinder 120 can be provided with an oil inlet 1211 for connecting an oil pipe. On this basis, the oil inlet 1211 can be provided with a quick connector 1212, and the oil inlet 1211 is connected to the oil pipe via the quick connector 1212. Through the above design, the present disclosure can use the quick connector 1212 to achieve quick connection and disconnection between the jacking cylinder 120 and the oil pipe without the aid of tools, further improving the assembly efficiency of the dowel pin bolt disassembling device 100.

[0048] As Figure 2 shown, in an embodiment of the present disclosure, the outer diameter of the pushing end 1221 of the push rod 122 can be larger than the outer diameter of the part of the push rod 122 other than the pushing end 1221. Through the above design, the present disclosure can further increase the contact area between the pushing end 1221 and the dowel pin bolt 300, improving the stability and reliability during the pushing process. In addition, the design with a larger outer diameter of the pushing end 1221 can also prevent the pushing end 1221 from being overly retracted into the cylinder block 121, ensuring the normal operation of the jacking cylinder 120.

[0049] As Figure 1As shown, in an embodiment of the present disclosure, the two side walls of the clamping groove 111 are respectively a first side wall 1111 and a second side wall 1112. The first side wall 1111 is closer to the jacking oil cylinder 120 than the second side wall 1112, that is, the pushing end portion 1221 of the push rod 122 extends from the first side wall 1111. On this basis, the second side wall 1112 may be provided with an avoidance notch 1113 penetrating in the second direction. The avoidance notch 1113 opens on one side of the clamping seat 110 in the first direction, and the avoidance notch 1113 is connected to the notch of the clamping groove 111. The width of the avoidance notch 1113 in the second direction is greater than or equal to the width of the nut portion 310 of the precision reamed bolt 300 in the second direction. Through the above design, the present disclosure can use the avoidance notch 1113 to avoid the nut portion 310 of the precision reamed bolt 300 located outside the side surface of the workpiece 200, so that the second side wall 1112 (the part without the avoidance notch 1113) can be designed to have a longer length in the first direction, thereby expanding the contact area between the second side wall 1112 and the surface of the workpiece 200 in the first direction, and further improving the stability and reliability during the disassembly process.

[0050] As Figure 1 and Figure 2 shown, in an embodiment of the present disclosure, the clamping seat 110 may be an integral structure. Through the above design, the present disclosure can reduce the number of components and the structural complexity.

[0051] In another embodiment not illustrated in the present disclosure, the clamping seat 110 may include a first seat body and a second seat body. The first seat body and the second seat body jointly form the clamping groove 111, and the two side walls of the clamping groove 111 are respectively located on the first seat body and the second seat body. On this basis, the first seat body and the second seat body are detachably and adjustably fixedly connected via a connection structure, so that the distance between the two side walls of the clamping groove 111 in the third direction is adjustable. Through the above design, the present disclosure provides a clamping seat 110 with adjustable clamping distance, that is, a solution with adjustable distance between the two side walls of the clamping groove 111, thereby being able to meet the clamping and positioning of the clamping seat 110 on workpieces 200 with different thicknesses, and thus expanding the application range of the precision reamed bolt disassembly device 100 proposed by the present disclosure.

[0052] Based on the design that the clamping seat 110 includes a first seat body and a second seat body, in an embodiment of the present disclosure, the first seat body and the second seat body partially overlap. A first connection hole is provided in the overlapping part of the first seat body, and a second connection hole is provided in the overlapping part of the second seat body. Accordingly, the connecting structure passes through the first connection hole and the second connection hole to fixedly connect the first seat body and the second seat body. On this basis, at least one of the first connection hole and the second connection hole may include a plurality of spaced apart in the third direction. Through the above design, the present disclosure can achieve the connection of the first seat body and the second seat body at multiple different positions, so as to realize the adjustment of the distance between the two side walls of the clamping groove 111 in the third direction. In some other embodiments of the present disclosure, in order to achieve the adjustment of the first seat body and the second seat body in the third direction, the present disclosure may also adopt various other possible matching structures, such as the combination of the connecting structure and the long hole, or the combination of the connecting structure and the sliding groove, etc., and is not limited to the above embodiments.

[0053] As Figure 1 shown, in an embodiment of the present disclosure, the clamping seat 110 may be connected with a handle 112. Through the above design, the present disclosure can provide a handle 112 for the operator to hold, further improving the usability of the dowel pin bolt disassembly device 100.

[0054] In an embodiment of the present disclosure, the clamping seat 110 and the cylinder body 121 of the jacking oil cylinder 120 may be welded. Through the above design, the present disclosure can ensure the connection strength between the clamping seat 110 and the cylinder body 121, improve the stability of the mechanical system, and reduce the assembly difficulty of the dowel pin bolt disassembly device 100. In some other embodiments of the present disclosure, the clamping seat 110 and the jacking oil cylinder 120 may also be fixedly connected in other ways, such as being connected through a connecting piece, etc., and is not limited to this embodiment.

[0055] It should be noted here that the dowel pin bolt disassembly device 100 shown in the drawings and described in this specification is only a few examples of many disassembly devices that can adopt the principle of the present disclosure. It should be clearly understood that the principle of the present disclosure is by no means limited to any details or any components of the dowel pin bolt disassembly device 100 shown in the drawings or described in this specification.

[0056] In summary, the reaming bolt disassembly device 100 proposed by the present disclosure includes a clamping seat 110, a jacking oil cylinder 120, and an oil pump. The clamping seat 110 has a clamping groove 111. The notch of the clamping groove 111 is disposed on one side of the clamping seat 110 in the first direction. The clamping groove 111 penetrates the clamping seat 110 in a second direction perpendicular to the first direction. The clamping groove 111 has two side walls disposed opposite to each other in a third direction. The third direction is perpendicular to the first direction and perpendicular to the second direction, and the third direction is parallel to the axial direction of the reaming bolt 300. The jacking oil cylinder 120 includes a cylinder block 121 and a push rod 122. The cylinder block 121 is connected to one side of the clamping seat 110 in the third direction. The push rod 122 is telescopically disposed in the cylinder block 121 and extends in the third direction. The push rod 122 has a pushing end 1221 extending into the clamping groove 111. The oil pump is connected to the cylinder block 121 via an oil pipe. When the reaming bolt disassembly device 100 disassembles the reaming bolt 300, the two side walls of the clamping groove 111 respectively abut against the two side surfaces of the workpiece 200. The oil pump drives the jacking oil cylinder 120 to make the push rod 122 push against the reaming bolt 300 to move it out of the workpiece 200 away from the cylinder block 121. Through the above design, the present disclosure uses the clamping seat 110 to position the relative position of the jacking oil cylinder 120 and the workpiece 200, and uses the cylinder rod of the jacking oil cylinder 120 to push against the reaming bolt 300 to disassemble it from the workpiece 200. Accordingly, the rapid and convenient disassembly operation of the reaming bolt 300 can be realized, and the production efficiency of the locomotive can be significantly improved. In addition, the reaming bolt disassembly device 100 proposed by the present disclosure has a simple structure and is easy to implement.

[0057] The above has described and / or illustrated in detail the exemplary embodiments of the reaming bolt disassembly device proposed by the present disclosure. However, the embodiments of the present disclosure are not limited to the specific embodiments described herein. On the contrary, each component and / or step of each embodiment can be used independently and separately from other components and / or steps described herein. Each component and / or each step of one embodiment can also be combined with other components and / or steps of other embodiments. When introducing the elements / components / etc. described and / or illustrated herein, the terms "a", "one", and "the above" etc. are used to indicate the existence of one or more elements / components / etc. The terms "comprising", "including", and "having" are used to mean an open inclusion and mean that there may be additional elements / components / etc. in addition to the listed elements / components / etc. In addition, the terms "first" and "second" etc. in the claims and the specification are only used as labels and are not numerical limitations on their objects.

[0058] Although the reaming bolt disassembly device proposed by the present disclosure has been described according to different specific embodiments, those skilled in the art will recognize that modifications can be made to the embodiments of the present disclosure within the spirit and scope of the claims.

Claims

1. A device for removing a hole-reamed bolt, used for removing a hole-reamed bolt installed on a workpiece; characterized in that: The reaming hole bolt removal device comprises: A clamping seat, which has a clamping groove, wherein the notch of the clamping groove is arranged on one side of the clamping seat in a first direction, the clamping groove penetrates the clamping seat along a second direction perpendicular to the first direction, and the clamping groove has two side groove walls arranged oppositely in a third direction, the third direction is perpendicular to the first direction and perpendicular to the second direction, and the third direction is parallel to the axial direction of the reaming hole bolt; A push cylinder, comprising a cylinder body and a push rod, wherein the cylinder body is connected to one side of the clamping seat in the third direction, the push rod is telescopically arranged on the cylinder body and extends along the third direction, and the push rod has a push end portion extending into the clamping groove; and an oil pump connected to the cylinder body via an oil pipe; When the hole-reaming bolt disassembly device disassembles the hole-reaming bolt, the two side groove walls of the clamping groove respectively abut against the two side surfaces of the workpiece, and the oil pump drives the push cylinder to make the push rod push the hole-reaming bolt away from the cylinder body and move it out of the workpiece.

2. The device for removing bolts from reamed holes according to claim 1, characterized in that: The oil pump is a pneumatic oil pump, and the pneumatic oil pump comprises: An oil pump body connected to the cylinder body of the push oil cylinder via the air duct; and The pneumatic mechanism is connected to the oil pump body. When the hole-reaming bolt disassembly device disassembles the hole-reaming bolt, the operator operates the pneumatic mechanism to deliver compressed air to the oil pump body as a power source.

3. The device for removing bolts from reamed holes according to claim 2, characterized in that: The pneumatic mechanism is a foot-operated pneumatic mechanism.

4. The device for removing bolts from reamed holes according to claim 1, characterized in that: The cylinder body of the push cylinder is provided with an oil inlet for connecting the oil pipe; wherein the oil inlet is provided with a quick-release connector, and the oil inlet is connected to the oil pipe via the quick-release connector.

5. The device for removing bolts from reamed holes according to claim 1, characterized in that: The outer diameter of the push end portion of the push rod is larger than the outer diameter of a portion of the push rod other than the push end portion.

6. The device for removing bolts from reamed holes according to claim 1, characterized in that: The groove walls on both sides of the clamping groove are respectively the first groove wall and the second groove wall, and the first groove wall is closer to the push cylinder than the second groove wall; wherein the second groove wall is provided with an avoidance gap penetrating along the second direction, and the avoidance gap opens on one side of the clamping seat in the first direction and is connected to the notch of the clamping groove, and the width of the avoidance gap in the second direction is greater than or equal to the width of the nut portion of the hinged hole bolt in the second direction.

7. The device for removing bolts from reamed holes according to claim 1, characterized in that: The clamping seat includes a first seat body and a second seat body, the first seat body and the second seat body together form the clamping groove, and the two side groove walls of the clamping groove are respectively located on the first seat body and the second seat body; wherein, the first seat body and the second seat body are detachably and adjustably fixedly connected via a connecting structure so that the spacing between the two side groove walls of the clamping groove in the third direction is adjustable.

8. The device for removing bolts from reamed holes according to claim 7, characterized in that: The first base body partially overlaps with the second base body, the overlapping portion of the first base body is provided with a first connecting hole, and the overlapping portion of the second base body is provided with a second connecting hole, and the connecting structure passes through the first connecting hole and the second connecting hole to fix the first base body and the second base body together; wherein, at least one of the first connecting hole and the second connecting hole includes a plurality of holes arranged at intervals along the third direction.

9. The device for removing bolts from reamed holes according to claim 1, characterized in that: The clamping seat is connected with a handle.

10. The device for removing bolts from reamed holes according to claim 1, characterized in that: The clamping seat is welded to the cylinder body of the jacking oil cylinder.

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