Pin shaft dismounting tool

Abstract

The utility model discloses a pin shaft dismounting tool which comprises a supporting bottom plate, a supporting top plate, a connecting part, a pressing part and a telescopic part. The supporting top plate is arranged on the top surface of the pre-dismounting pin shaft part; the supporting bottom plate is arranged on the bottom surface of the pre-dismounting pin shaft part; the connecting part is used for connecting the supporting top plate and the supporting bottom plate and fixing the supporting top plate and the supporting bottom plate to the pre-disassembled pin shaft part; the pair of pressing components are arranged on the two sides of the supporting bottom plate respectively and located on the two sides of the supporting top plate at the same time, the middles of the pressing components are hinged to the supporting bottom plate, and the front ends of the pressing components are located above the disassembled pin shaft; the telescopic component is arranged between the tail of the pressing component and the supporting bottom plate, the telescopic component gradually ejects upwards to drive the pressing component to rotate around the hinge point, and the front end of the pressing component gradually extrudes downwards till the pin shaft is extruded out. The tool has the advantages of being suitable for a narrow space, large in dismounting force, convenient to carry, simple in structure and low in operation intensity.

Description

Technical Field

[0001] The utility model relates to a tooling used for pin shaft disassembly operations in a narrow space with a large disassembly force, and belongs to the technical field of engineering machinery manufacturing. Background Art

[0002] The overall structure of construction machinery is complex, the size and weight of parts are generally large, and the assembly relationship is complicated. When repairing a certain part, it is difficult to completely disassemble the part for repair, resulting in the frequent encounter of working conditions of repair in a small space during the repair process. At the same time, due to the generally poor working conditions of construction machinery, the pin shaft, as a commonly used transmission part, is a problem often encountered in the repair process of construction machinery. The poor working conditions often cause the pin shaft to require a large disassembly force due to rust and other reasons. Traditional disassembly methods such as hammering, bolt ejection, jack ejection, etc. are no longer applicable due to the limitation of small space, resulting in a general lack of effective disassembly means, and the pin shaft component has to be removed from the whole machine before repair work is carried out, which has the problems of low efficiency and high labor intensity. Summary of the invention

[0003] The purpose of the utility model is to overcome the deficiencies in the prior art and provide a pin shaft disassembly tool, which has the advantages of adapting to narrow spaces, having large disassembly force, being easy to carry, having a simple structure, and having low operating intensity; and solves the problem in the prior art that general tools cannot be used or the disassembly force is insufficient when disassembling the pin shaft in a narrow space.

[0004] The utility model is implemented according to the following technical solutions:

[0005] The utility model provides a pin shaft disassembly tool, comprising:

[0006] A supporting top plate is arranged on the top surface of the pre-disassembled pin shaft portion;

[0007] A supporting bottom plate is arranged at the bottom surface of the pre-disassembled pin shaft portion;

[0008] A connecting component, used to connect the supporting top plate and the supporting bottom plate, and fix the supporting top plate and the supporting bottom plate on the pre-disassembly pin shaft position;

[0009] A pair of clamping components, respectively arranged on both sides of the supporting bottom plate, and also located on both sides of the supporting top plate, the middle part of the clamping component is hinged to the supporting bottom plate, and the front end of the clamping component is located above the disassembled pin shaft;

[0010] The telescopic component is arranged between the tail of the clamping component and the supporting bottom plate. The telescopic component is gradually pushed upward to drive the clamping component to rotate around the hinge point, and the front end of the clamping component is gradually pressed downward until the pin shaft is pressed out.

[0011] In some embodiments, the connecting component is a bolt, the support bottom plate is provided with a plurality of through holes, the support top plate is provided with threaded holes corresponding one to one with the plurality of through holes, the bolts pass through the through holes and cooperate with the threaded holes to fix the support top plate and the support bottom plate on the pre-disassembly pin shaft position.

[0012] In some embodiments, an adjustment component is installed between the support top plate and the support bottom plate for adjusting the position of the support bottom plate to ensure that the front end of the clamping component is in a concentric position with the pin to be removed.

[0013] In some embodiments, the adjustment component is composed of a plurality of top screws, and the support base plate is provided with threaded holes corresponding to the plurality of top screws one by one. The top screws are screwed into the threaded holes, and the pre-disassembly pin shaft is tightened by the top screws to ensure that the position of the clamping component will not be deviated during the removal of the pin shaft.

[0014] In some embodiments, the pressing component comprises:

[0015] The rotating pressing block is composed of a pressing plate and a single-ear hinge plate located in the middle of the bottom surface of the pressing plate, and the single-ear hinge plate is used to connect with the supporting bottom plate;

[0016] A pressure head, installed at the front end of the bottom of the rotating pressure block, used for pressing the pin to be removed;

[0017] A cushion block is installed at the tail of the bottom surface of the rotating pressing block and is used for contacting the telescopic component.

[0018] In some embodiments, the rotating pressing block is generally of a structure that is narrow at the front and wide at the back, and a top surface at the front end of the rotating pressing block is configured as a slope that is low at the front and high at the back.

[0019] In some embodiments, the telescopic component is composed of a jack and a power pump connected thereto; the jack is arranged between the tail of the clamping component and the supporting base plate, and the jack is driven upward by the power pump.

[0020] In some embodiments, the support base comprises:

[0021] The flat bottom plate is formed by bending opposite ends toward the same side, and is divided into a middle area for assembling the supporting top plate and two side bending areas for assembling the clamping components;

[0022] Two double-ear hinge plates are respectively fixed on the bending areas on both sides, and the overall structure is an eight-shaped structure. The double-ear hinge plate is used to cooperate with the single-ear hinge plate on the clamping component, and the two are hinged by inserting the pin shaft.

[0023] In some embodiments, the supporting top plate is an overall U-shaped structure and is arranged above the middle portion of the supporting bottom plate.

[0024] In some embodiments, the supporting top plate, the supporting bottom plate, the connecting component and a pair of clamping components are assembled to form a bilaterally symmetrical structure as a whole, and the two clamping components are distributed in an eight-shaped structure.

[0025] Beneficial effects of the utility model:

[0026] The utility model provides a pin shaft disassembly tool, which has the advantages of adapting to narrow space, large disassembly force, easy carrying, simple structure and low operation intensity; it solves the technical problem in the prior art that there is a lack of effective means when disassembling the pin shaft due to narrow space and large disassembly force requirement. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The accompanying drawings are part of the present invention and are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention, but do not constitute an improper limitation on the present invention. Obviously, the accompanying drawings described below are only some embodiments. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without creative work.

[0028] In the attached picture:

[0029] Figure 1 This is a schematic diagram of the structure of the pin disassembly tool of the utility model;

[0030] Figure 2 This is a working schematic diagram of the pin disassembly tool of the utility model;

[0031] Figure 3 This is a schematic diagram of the structure of the support base plate of the utility model;

[0032] Figure 4 This is a schematic diagram of the structure of the support top plate of the utility model;

[0033] Figure 5 This is a schematic diagram of the structure of the rotary pressing block of the utility model;

[0034] Figure 6 It is a structural schematic diagram of the main body of the pin shaft disassembly tooling of the utility model.

[0035] In the figure: 1. supporting bottom plate, 2. cushion block, 3. rotating pressure block, 4. pressure head, 5. supporting top plate, 6. hydraulic jack, 7. high-pressure hand pressure pump, 8. bolts, 9. jacking screw, 10. pin shaft.

[0036] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but rather to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. Implementation

[0037] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. The following embodiments are used to illustrate the utility model but are not used to limit the scope of the utility model.

[0038] In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0039] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0040] like Figure 1 , Figure 2 , Figure 6 As shown, a pin shaft disassembly tool comprises a support base plate 1, a support top plate 5, a connecting component, a clamping component and a telescopic component; the support top plate 5 is arranged at the top surface of the pre-disassembly pin shaft position; the support base plate 1 is arranged at the bottom surface of the pre-disassembly pin shaft position; the connecting component is used to connect the support top plate 5 and the support base plate 1, and fix the support top plate 5 and the support base plate 1 on the pre-disassembly pin shaft position; a pair of clamping components are respectively arranged on both sides of the support base plate 1, and are also located on both sides of the support top plate 5, the middle part of the clamping component is hinged to the support base plate 1, and the front end of the clamping component is above the disassembled pin shaft; the telescopic component is arranged between the tail of the clamping component and the support base plate 1, the telescopic component is gradually pushed upward to drive the clamping component to rotate around the hinge point, and the front end of the clamping component is gradually squeezed downward until the pin shaft is pressed out.

[0041] Further solutions: Figure 1 , Figure 6 As shown, the connecting component is a bolt 8, a plurality of through holes are provided on the support base plate 1, and a threaded hole corresponding to the plurality of through holes is provided on the support top plate 5. The bolt 8 passes through the through holes and cooperates with the threaded holes to fix the support top plate 5 and the support base plate 1 on the pre-disassembly pin shaft position.

[0042] Further solutions: Figure 1 , Figure 2 , Figure 6 As shown, an adjustment component is installed between the support top plate 5 and the support bottom plate 1 for adjusting the position of the support bottom plate 1 to ensure that the front end of the clamping component is in a concentric position with the pin to be removed.

[0043] Preferred solution: Figure 1 , Figure 2 , Figure 6 As shown, the adjustment component is composed of multiple top screws 9, and the support base plate 1 is provided with threaded holes corresponding to the multiple top screws 9. The top screws 9 are screwed into the threaded holes. The top screws 9 are used to tighten the pre-disassembly pin shaft to ensure that the position of the clamping component will not be deviated during the removal of the pin shaft.

[0044] Further solutions: Figure 1 , Figure 2 , Figure 5 , Figure 6 As shown, the clamping component includes a rotating pressure block 3, a pressure head 4 and a cushion block 2; the rotating pressure block 3 is composed of a pressure plate and a single-ear hinge plate located in the middle of the bottom surface of the pressure plate, and the single-ear hinge plate is used to be connected to the supporting bottom plate 1; the pressure head 4 is installed at the front end of the bottom of the rotating pressure block 3, and is used to squeeze the pin shaft to be disassembled; the cushion block 2 is installed at the tail of the bottom surface of the rotating pressure block 3, and is used to contact the telescopic component.

[0045] Further solutions: Figure 5 As shown, the rotating pressing block 3 is generally of a structure that is narrow at the front and wide at the back, and the top surface of the front end of the rotating pressing block 3 is set as a slope that is low at the front and high at the back.

[0046] It should be noted that the rotating pressing block 3 is not limited to the above-mentioned shape. The structure of the rotating pressing block 3 can be designed into different structural types to meet the space requirements based on space limitations while retaining the space required for the hinge rotation.

[0047] Further solutions: Figure 1 , Figure 2 As shown, the extending component is composed of a jack and a power pump connected thereto; the jack is arranged between the cushion block 2 and the supporting base plate 1, and the jack is driven upward by the power pump.

[0048] Preferred solution: The jack is preferably a hydraulic jack 6, which is equipped with a high-pressure hand pump 7 as a power source; of course, the hydraulic jack 6 can be a pneumatic jack, etc., and the high-pressure hand pump 7 can be a pneumatic hydraulic pump, an electric hydraulic pump, etc.

[0049] Further solutions: Figure 3As shown, the supporting bottom plate 1 includes a bottom plate that is bent twice on the same side and two double-ear hinge plates. The bottom plate is divided into a middle area for assembling the supporting top plate 5 and two side bending areas for assembling the clamping component; the two double-ear hinge plates are respectively fixed to the bending areas on both sides, and the whole is an eight-shaped structure. The double-ear hinge plate is used to cooperate with the single-ear hinge plate on the clamping component, and the two are hinged by inserting the pin shaft 10.

[0050] It should be noted that the support base plate 1 is not limited to the above-mentioned shape. The structure of the support base plate 1 can be designed into different structural types to meet space requirements based on space limitations while retaining the space required for hinge rotation, top screw locking, and connecting the support top plate.

[0051] Further solutions: Figure 4 As shown, the supporting top plate 5 is a U-shaped structure as a whole and is arranged above the middle portion of the supporting bottom plate 1 .

[0052] It should be noted that the support top plate 5 is not limited to the above-mentioned shape. The structure of the support top plate 5 can be designed into different structural types to meet space requirements based on space limitations while retaining the space required for connecting the support bottom plate.

[0053] Further solutions: Figure 6 As shown, after the support top plate 5, the support bottom plate 1, the connecting component and a pair of clamping components are assembled, the overall structure is bilaterally symmetrical, and the two clamping components are distributed in an "eight" structure.

[0054] As can be seen from the above, the utility model is suitable for the working conditions of disassembling the pin shaft in a narrow space and with a large disassembly force.

[0055] The disassembly method is: disassembly by squeezing the pressure head 4.

[0056] The transmission method is: by rotating the pressure block 3 around the hinge point of the supporting base plate 1, the downward extrusion force of the pressure head 4 required for the pin shaft disassembly is converted into the upward ejection force of the cushion block 2, thereby realizing the extrusion power output through the cooperation of the hydraulic jack 6 and the high-pressure hand pressure pump 7.

[0057] The fixing method is: the support bottom plate 1 and the support top plate 5 are fixed by bolts 8, and the top screw 9 is adjusted to ensure that the position of the pressure head 4 that outputs the disassembly force can maintain a relative position relationship concentric with the disassembled pin shaft. Further, the pressure head 4 and the support bottom plate 1 are staggered in the axial direction of the disassembled pin shaft.

[0058] like Figure 2As shown, the working process of the pin disassembly tool is as follows: first, the support base plate 1 and the support top plate 3 are clamped to the frame as a whole through multiple bolts 6, and then the cushion block 2, the rotating pressure block 3, and the pressure head 4 are assembled and installed on the support base plate 1 as a whole through the pin 10. At this time, the position of the support base plate 1 is adjusted by adjusting the top screw 5 and the bolt 6 to ensure that the pressure head 4 and the pin to be disassembled are in a concentric position. Finally, the bolt 6 is tightened and the top screw 5 is tightened to ensure that the position of the pressure head 4 will not be deflected during the disassembly process. After that, the hydraulic jack 6 is inserted between the support base plate 1 and the cushion block 2, and the high-pressure hand pressure pump 7 is connected to the hydraulic jack 6 and manually pressurized. When the piston rod of the hydraulic jack 6 is pushed out, it will push the cushion block 2, and then push the rotating pressure block 3 to rotate around the hinge point of the support base plate 1, so that the pressure head 4 can achieve a downward extrusion action to press out the pin to complete the disassembly.

[0059] The utility model provides a pin shaft disassembly tool suitable for a narrow space. The direction of the input disassembly force is converted by rotating the pressure block to compress the space required for disassembly. The output of the disassembly force is increased by using a hydraulic jack + a high-pressure hand pump, thereby solving the technical problems of limited space and insufficient disassembly force encountered when disassembling the pin shaft in a narrow space.

[0060] In the description provided herein, a large number of specific details are described. However, it is understood that embodiments of the present invention can be practiced without these specific details. In some instances, well-known methods, structures and techniques are not shown in detail so as not to obscure the understanding of this description.

[0061] In addition, those skilled in the art will understand that, although some embodiments described herein include certain features included in other embodiments but not other features, the combination of features of different embodiments also means being within the scope of protection of the present utility model and forming different embodiments. For example, in the above embodiments, those skilled in the art can use them in combination according to the known technical solutions and the technical problems to be solved by the present application.

[0062] The above is only a preferred embodiment of the utility model, and does not limit the utility model in any form. Although the utility model has been disclosed as a preferred embodiment as above, it is not used to limit the utility model. Any technician familiar with this patent can make some changes or modify the technical content suggested above into an equivalent embodiment with equivalent changes without departing from the scope of the technical solution of the utility model. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the utility model without departing from the content of the technical solution of the utility model still falls within the scope of the solution of the utility model.

Claims

1. A pin disassembly tool, characterized in that: include: A supporting top plate is arranged on the top surface of the pre-disassembly pin shaft portion; A supporting bottom plate is arranged at the bottom surface of the pre-disassembled pin shaft portion; A connecting component, used to connect the supporting top plate and the supporting bottom plate, and fix the supporting top plate and the supporting bottom plate on the pre-disassembly pin shaft position; A pair of clamping components, respectively arranged on both sides of the supporting bottom plate, and also located on both sides of the supporting top plate, the middle part of the clamping component is hinged to the supporting bottom plate, and the front end of the clamping component is located above the disassembled pin shaft; The telescopic component is arranged between the tail of the clamping component and the supporting bottom plate. The telescopic component is gradually pushed upward to drive the clamping component to rotate around the hinge point, and the front end of the clamping component is gradually pressed downward until the pin shaft is pressed out.

2. The pin disassembly tool according to claim 1, characterized in that: The connecting component is a bolt, the supporting bottom plate is provided with a plurality of through holes, the supporting top plate is provided with threaded holes corresponding to the plurality of through holes one by one, the bolts pass through the through holes and cooperate with the threaded holes to fix the supporting top plate and the supporting bottom plate on the pre-disassembly pin shaft position.

3. The pin disassembly tool according to claim 1, characterized in that: An adjusting component is also installed between the supporting top plate and the supporting bottom plate, and is used to adjust the position of the supporting bottom plate to ensure that the front end of the clamping component is in a concentric position with the pin shaft to be disassembled.

4. The pin disassembly tool according to claim 3, characterized in that: The adjustment component is composed of a plurality of top screws, and the support base plate is provided with threaded holes corresponding to the plurality of top screws one by one. The top screws are screwed into the threaded holes, and the pre-disassembly pin shaft parts are tightened by the top screws to ensure that the position of the clamping component will not be deflected during the removal of the pin shaft.

5. The pin disassembly tool according to claim 1, characterized in that: The pressing component comprises: The rotating pressing block is composed of a pressing plate and a single-ear hinge plate located in the middle of the bottom surface of the pressing plate, and the single-ear hinge plate is used to connect with the supporting bottom plate; A pressure head, installed at the front end of the bottom of the rotating pressure block, used for pressing the pin to be removed; A cushion block is installed at the tail of the bottom surface of the rotating pressing block and is used for contacting the telescopic component.

6. The pin disassembly tool according to claim 5, characterized in that: The rotating pressing block is generally of a structure that is narrow at the front and wide at the rear, and a top surface at the front end of the rotating pressing block is configured as a slope that is low at the front and high at the rear.

7. The pin disassembly tool according to claim 1, characterized in that: The telescopic component is composed of a jack and a power pump connected thereto; the jack is arranged between the tail of the pressing component and the supporting bottom plate, and the jack is driven upward by the power pump.

8. The pin disassembly tool according to claim 1, characterized in that: The supporting base plate comprises: The flat bottom plate is formed by bending opposite ends toward the same side, and is divided into a middle area for assembling the supporting top plate and two side bending areas for assembling the clamping components; Two double-ear hinge plates are respectively fixed on the bending areas on both sides, and the overall structure is an eight-shaped structure. The double-ear hinge plate is used to cooperate with the single-ear hinge plate on the clamping component, and the two are hinged by inserting the pin shaft.

9. The pin disassembly tool according to claim 1, characterized in that: The supporting top plate is an overall U-shaped structure and is arranged above the middle portion of the supporting bottom plate.

10. The pin disassembly tool according to claim 1, characterized in that: The supporting top plate, the supporting bottom plate, the connecting component and a pair of clamping components are assembled to form a bilaterally symmetrical structure as a whole, and the two clamping components are distributed in an "eight" structure.

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