CN212399429U - Shaft pin dismounting mechanism - Google Patents

Abstract

The utility model discloses a shaft pin dismouting mechanism, this shaft pin dismouting mechanism are used for the dismouting pivot, are equipped with radial through-hole on the pivot and with the axial hole of radial through-hole intercommunication, the pivot sets up on external device, this shaft pin dismouting mechanism includes coupling assembling, lead screw subassembly and driving piece. The two ends of the connecting component are respectively connected with an external device. One end of the screw rod assembly penetrates through the axial hole and is matched with the radial through hole, and the other end of the screw rod assembly penetrates through the connecting assembly. The driving piece is located the junction of lead screw subassembly and coupling assembling, and driving piece and lead screw subassembly screw-thread fit can drive the lead screw subassembly when the driving piece rotates and move along the length direction of lead screw subassembly. The shaft pin dismounting mechanism can improve the mounting efficiency of shaft pin dismounting, reduces the damage to the shaft pin caused by the dismounting process, and improves the applicability of the shaft pin dismounting mechanism.

Description

Shaft pin dismounting mechanism

Technical Field

The utility model relates to a machinery dismouting technical field especially relates to a pivot dismouting mechanism.

Background

The assembly and disassembly of landing gear assemblies is a common task in aircraft assembly and maintenance service. The landing gear assembly has the characteristics of large volume, heavy weight, complex appearance of intersection points, high requirement on positioning accuracy and the like, so that the shaft pins connecting the intersection points and the airplane body on the landing gear assembly are very difficult to disassemble and assemble.

In the prior art, dismounting tools such as a copper bar and a wood bar are generally used for prying out a lubricating injection core of a shaft pin and scrapping off a sealing ring sleeved on the shaft pin, the structure of a landing gear assembly is adjusted so as to be convenient for dismounting the shaft pin, the shaft pin is adjusted to be coaxial with a mounting hole so as to enable the shaft pin to have no obvious load, the shaft pin is knocked by using tools such as the copper bar and the wood bar so as to be dismounted, a new lubricating injection core and a new sealing ring are required to be mounted when the shaft pin is mounted again, and the shaft pin is knocked to the mounting hole of an external device by. In addition, when the mounting hole is a blind hole, the mounting hole cannot be detached by knocking, and only a tool such as a crowbar or a hammer can be used for prying out the shaft pin. When the dismounting of the shaft pin is completed by using a common dismounting tool, the landing gear jacking equipment needs to be finely adjusted to the shaft pin and the mounting hole are coaxial so as to reduce the stress of the shaft pin, the dismounting and mounting are often manually carried out after manual fine adjustment at every time in the actual dismounting and mounting process, but the dismounting difficulty of the shaft pin is easily and obviously increased even if the stress of the shaft pin is small, so that an operator needs to carry out frequent debugging. Therefore, the shaft pin is assembled and disassembled by using a common assembling and disassembling tool, time and labor are wasted, the working efficiency is extremely low, the lubricating injection core and the sealing ring are extremely easy to damage, a large amount of unnecessary cost waste is caused, the shaft pin is required to be knocked by using a tool in the assembling and disassembling process, the shaft pin is also extremely easy to damage, parts are deformed, the performance of the shaft pin is seriously influenced, and the service life of the shaft pin is shortened.

In the prior art, other tools for completing the shaft pin disassembly are used, but the shaft pin is only suitable for the shaft pin on an external device with a specific size and a regular shape, for example, the end surface is flat and is vertical to the shaft pin in the axial direction, a large operation space with good openness is required, and the disassembly and assembly process is still inconvenient and low in efficiency.

Therefore, a shaft pin dismounting mechanism is needed, which can improve the mounting efficiency of shaft pin dismounting, reduce the damage to the shaft pin caused by the dismounting process, and improve the applicability of the shaft pin dismounting mechanism.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a pivot dismouting mechanism can improve the installation effectiveness of pivot dismouting, reduces the damage that the dismouting process caused to the pivot, improves the suitability of pivot dismouting mechanism.

For realizing the technical effect, the utility model discloses a technical scheme of pivot dismouting mechanism as follows:

a shaft pin dismounting mechanism for dismounting a shaft pin, the shaft pin being provided with a radial through hole and an axial hole communicating with the radial through hole, the shaft pin being provided on an external device, the shaft pin dismounting mechanism comprising: the two ends of the connecting component are respectively connected with the external device; one end of the screw rod assembly penetrates through the axial hole and is matched with the radial through hole, and the other end of the screw rod assembly penetrates through the connecting assembly; the driving piece, the driving piece is located the lead screw subassembly with coupling assembling's junction, the driving piece with lead screw subassembly screw-thread fit, the driving piece can drive when rotating the lead screw subassembly is followed the length direction motion of lead screw subassembly.

Further, the lead screw subassembly includes: a fixing piece fitted in the radial through hole; the lead screw, the lead screw is worn to establish in the axial hole, the one end of lead screw with the mounting is connected, and the other end is worn to establish in the coupling assembling, the driving piece cooperation is in on the lead screw.

Furthermore, the screw rod is in threaded connection with the fixing piece, and the screwing direction of the screw rod and the fixing piece is the same as the rotating direction in which the driving piece drives the screw rod to move towards the direction far away from the external device.

Further, the screw rod assembly further comprises a fastener, the fastener is sleeved on the screw rod, and the fastener is used for reinforcing the connection relation between the screw rod and the fixing piece.

Further, the connection assembly includes: the screw rod assembly penetrates through the connecting piece; the two supporting pieces are respectively arranged on two sides of the shaft pin, which are opposite to each other, one end of each supporting piece is arranged in the corresponding connecting piece in a penetrating mode, and the other end of each supporting piece is connected with the external device.

Further, the support piece comprises a support rod and a matching portion, one end of the support rod penetrates through the connecting piece, the other end of the support rod penetrates through the matching portion, and the matching portion is matched with the external device to be connected with the support piece and the external device.

Further, the cross section of the matching part of the supporting piece and the connecting piece is non-circular.

Furthermore, a square hole is formed in the supporting piece, and the part, matched in the square hole, of the connecting piece is a square rod.

Further, the pivot dismouting mechanism still includes the closure, the closure wears to establish support piece with the junction of connecting piece, the closure is used for preventing the connecting piece is relative support piece rotates.

Further, the driving member is a nut.

The utility model has the advantages that: use the utility model discloses a when pivot dismouting mechanism carries out the dismouting to the pivot, wear to establish the one end of lead screw subassembly in radial through-hole, connect the both ends of coupling assembling on external device, the lead screw subassembly is worn to establish in the coupling assembling simultaneously for pivot dismouting mechanism install on external device and with the pivot connection. After the installation is finished, the driving piece is rotated manually or by using a tool to drive the screw rod to move along the length direction of the screw rod, so that the shaft pin is driven by the screw rod to move along the length direction of the screw rod, and the shaft pin is assembled and disassembled on an external device. The connecting assembly can be connected to external devices with different structures, and one end of the screw rod assembly can be detachably connected to the shaft pins with different internal structures, so that the shaft pin dismounting structure has strong universality and needs a small operation space. In addition, because the connecting assembly has lower structural requirements on the external device, the dismounting process of the shaft pin does not need to carry out early preparation so that the structure of the external device is convenient for mounting and dismounting the shaft pin. In the dismouting in-process, need not to dismantle lubricated notes instrument such as core or use jimmy alone, also can not damage the sealing washer on the pivot in the dismouting in-process, can make pivot and external device atress even to can not damage parts such as the sealing washer of pivot and lubricated notes core in the dismouting in-process, so that the pivot that the dismantlement finishes can directly load on external device. Therefore, the damage of the shaft pin to parts and external devices in the shaft pin dismounting process is greatly reduced, the product quality is ensured, the repeated utilization rate of the shaft pin is improved, and the service life of the external devices is prolonged. Use the utility model discloses a when pivot on the aircraft landing gear subassembly is dismantled to pivot dismouting mechanism, external device is the aircraft, and operating personnel only need simply operate landing gear jacking instrument and can install pivot dismouting structure when making the pivot atress less and realize the dismouting, need not to dismantle aircraft body structure, has effectively reduced the earlier stage preparation work of pivot dismouting, has improved the dismouting efficiency of pivot.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

Fig. 1 is a schematic perspective view of a shaft pin mounting and dismounting mechanism according to an embodiment of the present invention;

fig. 2 is an exploded view of a shaft pin mounting and dismounting mechanism according to an embodiment of the present invention;

fig. 3 is a schematic perspective view of the shaft pin assembling and disassembling mechanism of the present invention cooperating with the shaft pin and the external device;

FIG. 4 is a schematic view of the internal structure of the shaft pin detaching mechanism for detaching the shaft pin from the external device according to the embodiment of the present invention;

fig. 5 is a schematic diagram of an internal structure of the shaft pin assembling and disassembling mechanism according to the embodiment of the present invention, which is used for assembling the shaft pin into the external device.

Reference numerals

1. A connecting assembly; 11. a connecting member; 12. a support member; 121. a support bar; 122. a fitting portion; 123. a square hole;

2. a screw assembly; 21. a fixing member; 22. a screw rod; 23. a fastener;

3. a drive member;

100. a shaft pin; 101. a radial through hole; 102. an axial bore; 103. and an external device.

Detailed Description

In order to make the technical problem solved by the present invention, the technical solution adopted by the present invention and the technical effect achieved by the present invention clearer, the technical solution of the present invention will be further explained by combining the drawings and by means of the specific implementation manner.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "right", "left", and the like are used in the orientation or positional relationship shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.

The specific structure of the shaft pin detaching and attaching mechanism according to the embodiment of the present invention will be described below with reference to fig. 1 to 5.

As shown in fig. 1-3, the shaft pin dismounting mechanism of the embodiment of the present invention is used for dismounting a shaft pin 100, the shaft pin 100 is provided with a radial through hole 101 and an axial hole 102 communicated with the radial through hole 101, the shaft pin 100 is provided on an external device 103, and the shaft pin dismounting mechanism includes a connection assembly 1, a screw rod assembly 2 and a driving member 3. The two ends of the connecting component 1 are respectively connected with an external device 103. One end of the screw rod component 2 penetrates through the axial hole 102 and is matched with the radial through hole 101, and the other end of the screw rod component is arranged in the connecting component 1 in a penetrating mode. The driving piece 3 is located the junction of lead screw subassembly 2 and coupling assembling 1, and driving piece 3 and 2 screw-thread fit of lead screw subassembly can drive lead screw subassembly 2 when driving piece 3 rotates and move along the length direction of lead screw subassembly 2.

It can be understood that, as shown in fig. 4 and 5, when the shaft pin 100 is assembled and disassembled by using the shaft pin assembling and disassembling mechanism of the present embodiment, one end of the screw rod assembly 2 is inserted into the radial through hole 101, the two ends of the connecting assembly 1 are connected to the external device 103, and the screw rod assembly 2 is inserted into the connecting assembly 1, so that the shaft pin assembling and disassembling mechanism is mounted on the external device 103 and connected to the shaft pin 100. After the installation is finished, the driving member 3 is rotated manually or by using a tool to drive the screw rod 22 to move along the length direction thereof, so that the shaft pin 100 is driven by the screw rod 22 to move along the length direction of the screw rod 22, and the shaft pin 100 is assembled and disassembled on the external device 103.

Specifically, the connecting assembly 1 can be connected to external devices 103 having different structures, and one end of the screw rod assembly 2 can be detachably connected to a shaft pin 100 having different internal structures, so that the shaft pin 100 mounting and dismounting structure has strong universality and small operation space. In addition, because the connecting assembly 1 has low structural requirements on the external device 103, no preliminary preparation is needed in the process of disassembling the shaft pin 100 so that the structure of the external device 103 facilitates the assembly and disassembly of the shaft pin 100.

In the dismounting process, the lubricating injection core does not need to be dismounted independently or tools such as a crowbar and the like are not used, the sealing ring on the shaft pin 100 is not damaged in the dismounting process, the shaft pin 100 and the external device 103 can be stressed uniformly, parts such as the sealing ring of the shaft pin 100 and the lubricating injection core are not damaged in the dismounting process, and the dismounted shaft pin 100 can be directly loaded on the external device 103. Therefore, the damage to parts and the external device 103 in the shaft pin 100 dismounting process is greatly reduced, the product quality is ensured, the repeated utilization rate of the shaft pin 100 is improved, and the service life of the external device 103 is prolonged.

More specifically, when the shaft pin 100 on the landing gear assembly is dismounted by using the shaft pin dismounting mechanism of the embodiment, the external device 103 is an airplane, and an operator only needs to simply operate the landing gear jacking tool to mount the shaft pin 100 dismounting structure to realize dismounting when the shaft pin 100 is stressed less, so that the airplane body structure is not required to be dismounted, the earlier preparation work of shaft pin 100 dismounting is effectively reduced, and the dismounting efficiency of shaft pin 100 is improved. Of course, the assembling and disassembling of the shaft pin 100 on the landing gear assembly is only used as a specific embodiment of the external device 103 to illustrate the convenience of use of the shaft pin assembling and disassembling mechanism of the present embodiment, in the practical use process of the present embodiment, the shaft pin assembling and disassembling mechanism of the present embodiment can also complete the assembling and disassembling of the shaft pin 100 on other external devices 103, and the external device 103 is not limited to the landing gear assembly.

In some embodiments, as shown in fig. 1 and 2, the lead screw assembly 2 includes a fixing member 21 and a lead screw 22. The fixing member 21 is fitted in the radial through hole 101. The screw rod 22 is arranged in the axial hole 102 in a penetrating manner, one end of the screw rod 22 is connected with the fixing part 21, the other end of the screw rod 22 is arranged in the connecting component 1 in a penetrating manner, and the driving part 3 is matched on the screw rod 22.

It can be understood that the detachable connection of the screw rod 22 and the fixing member 21 can facilitate the operator to mount the screw rod assembly 2 on the shaft pin 100, and facilitate the screw rod 22 driving the fixing member 21 to move and thus the shaft pin 100 to move, so as to achieve the mounting and dismounting of the shaft pin 100 on the external device 103. Meanwhile, the size of the fixing member 21 can be flexibly adjusted according to different shaft pins 100, thereby improving the applicability of the shaft pin dismounting mechanism.

In some embodiments, the screw 22 is screwed to the fixing member 21, and the screw 22 and the fixing member 21 are screwed in the same direction as the driving member 3 drives the screw 22 to move away from the external device 103.

It is understood that the threaded connection can facilitate the operator to connect the lead screw 22 with the fixing member 21 loaded on the shaft pin 100, and of course, in other embodiments of the present invention, other connecting structures can be used to achieve the connection between the lead screw 22 and the fixing member 21, which is not limited in detail herein.

In some embodiments, as shown in fig. 1 and fig. 2, the screw rod assembly 2 further includes a fastener 23, the fastener 23 is disposed on the screw rod 22, and the fastener 23 is used for reinforcing the connection relationship between the screw rod 22 and the fixing member 21.

It can be understood that the fastener 23 can improve the connection effect between the screw rod 22 and the fixing piece 21 and effectively reduce the possibility that the screw rod 22 is separated from the fixing piece 21, thereby improving the use effect and the use efficiency of the shaft pin dismounting mechanism.

In some embodiments, as shown in fig. 1-3, the connection assembly 1 includes a connector 11 and two support members 12. The screw rod assembly 2 is arranged in the connecting piece 11 in a penetrating way. Two supporting members 12 are respectively disposed at two opposite sides of the shaft pin 100, one end of each supporting member 12 is inserted into the connecting member 11, and the other end is connected to an external device 103.

It can be understood that, since the two supporting members 12 are both inserted into the connecting member 11, the two supporting members 12 can be away from and close to each other along the length direction of the connecting member 11, so that the connecting assembly 1 can be loaded on external devices 103 with different structural sizes to complete the assembling and disassembling of the shaft pin 100, thereby improving the applicability of the shaft pin assembling and disassembling mechanism.

In some embodiments, as shown in fig. 1 to 3, the supporting member 12 includes a supporting rod 121 and a matching portion 122, one end of the supporting rod 121 is inserted into the connecting member 11, the other end is inserted with the matching portion 122, and the matching portion 122 is matched with the external device 103 to connect the supporting member 12 and the external device 103.

It will be appreciated that the provision of the engagement portion 122 can facilitate the quick connection of the support member 12 to the external device 103, thereby improving the efficiency of use of the pin removal mechanism and the experience of the operator. Specifically, in this embodiment, the matching portion 122 is a T-shaped block, one end of the T-shaped block is connected to the supporting rod 121, the other end of the T-shaped block is embedded in the external device 103, and when two spaced T-shaped blocks are embedded in the external device 103, the connection assembly 1 can be stably connected to the external device 103 without providing a screw bolt, so that the use efficiency of the shaft pin dismounting mechanism is improved.

In some embodiments, the cross-section of the mating of the support member 12 and the connector 11 is non-circular.

It can be understood that, can prevent through the above-mentioned setting that connecting piece 11 from rotating relative support piece 12, make connecting piece 11 can fix and be located same horizontal position in the motion process of lead screw 22 stably, simultaneously because lead screw 22 wears to establish in connecting piece 11, make lead screw 22 can stable along its length direction motion, effectively prevent lead screw 22 from driving the skew lead screw 22's in the pivot 100 motion process length direction, greatly reduced because of the skew direction of motion of lead screw 22 and to the torsion and the destruction that coupling assembling 1 caused, the life of pivot dismouting mechanism and the dismouting effect to pivot 100 have been improved.

In some embodiments, as shown in fig. 2, the supporting member 12 is provided with a square hole 123, and the portion of the connecting member 11 fitting in the square hole 123 is a square rod.

It can be understood that the square rod and the square hole 123 can effectively prevent the connecting member 11 from rotating relative to the supporting member 12, thereby prolonging the service life of the shaft pin dismounting mechanism and improving the dismounting effect of the shaft pin 100.

In some embodiments, the pin removal mechanism further comprises a locking element (not shown) disposed at the connection between the support member 12 and the connecting member 11, the locking element being configured to prevent the connecting member 11 from rotating relative to the support member 12.

It can be understood that the locking member can lock the supporting member 12 and the connecting member 11 at the joint of the supporting member 12 and the connecting member 11, thereby effectively preventing the connecting member 11 from rotating relative to the supporting member 12, and thus improving the service life of the shaft pin removing and mounting mechanism and the effect of removing and mounting the shaft pin 100. Specifically, in this embodiment, the locking member may be a screw rod and a nut which are inserted into the supporting member 12 and the joint, and of course, in other embodiments of the present invention, the locking member can also use other connecting and locking structures, which is not specifically limited herein.

In some embodiments, the driver 3 is a nut.

It can be appreciated that the drive member 3 is provided as a nut which facilitates the removal and installation of the shaft pin 100 by an operator via the lead screw 22, which also reduces the cost of the shaft pin removal and installation mechanism and improves the production efficiency of the shaft pin removal and installation mechanism. Of course, in other embodiments of the present invention, other driving tools capable of driving the screw rod 22 to move along the length direction thereof by rotation may be used, and are not limited in this respect.

Example (b):

the shaft pin mounting and dismounting mechanism according to an embodiment of the present invention will be described with reference to fig. 1 to 5.

The shaft pin dismounting mechanism of the embodiment is used for dismounting a shaft pin 100, the shaft pin 100 is provided with a radial through hole 101 and an axial hole 102 communicated with the radial through hole 101, and the shaft pin 100 is arranged on an external device 103. The shaft pin dismounting mechanism comprises a connecting assembly 1, a screw rod assembly 2 and a driving piece 3.

The connecting assembly 1 comprises a connecting piece 11 and two supporting pieces 12. The screw rod assembly 2 is arranged in the connecting piece 11 in a penetrating way. Two supporting members 12 are respectively disposed at two opposite sides of the shaft pin 100, one end of each supporting member 12 is inserted into the connecting member 11, and the other end is connected to an external device 103. The supporting member 12 includes a supporting rod 121 and a matching portion 122, one end of the supporting rod 121 is inserted into the connecting member 11, the other end is inserted with the matching portion 122, and the matching portion 122 is matched with the external device 103 to connect the supporting member 12 and the external device 103. The supporting member 12 is provided with a square hole 123, and the part of the connecting member 11 fitted in the square hole 123 is a square rod.

The lead screw assembly 2 includes a fixing member 21 and a lead screw 22. The fixing member 21 is fitted in the radial through hole 101. The screw rod 22 is arranged in the axial hole 102 in a penetrating manner, one end of the screw rod 22 is connected with the fixing part 21, the other end of the screw rod 22 is arranged in the connecting component 1 in a penetrating manner, and the driving part 3 is matched on the screw rod 22.

The driving member 3 is a nut. The screwing direction of the screw 22 and the fixing member 21 is the same as the rotation direction of the nut driving the screw 22 to move away from the external device 103.

The shaft pin attaching and detaching mechanism of the present embodiment attaches and detaches the shaft pin 100 to and from the external device 103 as follows:

as shown in fig. 4 and 5, the fixing member 21 is inserted into the radial through hole 101, the engaging portion 122 at one end of the two supporting members 12 of the connecting member 1 is engaged with the external device 103, so that the connecting member 1 is connected to the external device 103, the lead screw 22 is inserted into the connecting member 11 and connected to the fixing member 21, and the shaft pin attaching and detaching mechanism is attached to the external device 103 and connected to the shaft pin 100. The nut is rotated manually or by using a tool to drive the lead screw 22 to move along the length direction thereof, so that the shaft pin 100 is driven by the lead screw 22 to move along the length direction of the lead screw 22, and the shaft pin 100 is assembled and disassembled on the external device 103.

The above-mentioned disassembling and assembling process can be adapted to the disassembling and assembling of the external device 103 with different structures, the shaft pin 100 with different sizes and the shaft pin 100 with different internal structures, so that the disassembling and assembling structure of the shaft pin 100 has strong universality.

In the dismounting process, tools such as a lubricating injection core or a crowbar are not required to be dismounted independently, the bearing pin 100 and the external device 103 can be stressed uniformly, and a sealing ring scrapped due to the dismounting of the bearing pin 100 is not required to be dismounted independently, so that the sealing ring and the lubricating injection core of the dismounted bearing pin 100 are complete and undamaged, and can be directly loaded on the external device 103 again. Therefore, the damage to parts and an external device 103 in the process of assembling and disassembling the shaft pin 100 is greatly reduced, and the product quality is ensured.

Meanwhile, the process of dismounting and mounting the shaft pin 100 by the shaft pin 100 dismounting and mounting structure is simple and convenient, the dismounting and mounting external device 103 is not needed, so that the dismounting and mounting process is suitable for the dismounting and mounting process, the dismounting and mounting structure of the shaft pin 100 can be mounted to realize dismounting and mounting when the shaft pin 100 is stressed by simply operating the landing gear jacking tool during specific implementation, the early preparation work of dismounting and mounting the shaft pin 100 is effectively reduced, and the dismounting and mounting efficiency of the shaft pin 100 is improved.

In the description herein, references to the description of "some embodiments," "other embodiments," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above description is only for the preferred embodiment of the present invention, and for those skilled in the art, there are variations on the detailed description and the application scope according to the idea of the present invention, and the content of the description should not be construed as a limitation to the present invention.

Claims (10)

1. A shaft pin dismounting mechanism for dismounting a shaft pin (100), the shaft pin (100) being provided with a radial through hole (101) and an axial hole (102) communicating with the radial through hole (101), the shaft pin (100) being provided on an external device (103), characterized in that the shaft pin dismounting mechanism comprises:

the two ends of the connecting component (1) are respectively connected with the external device (103);

one end of the screw rod assembly (2) penetrates through the axial hole (102) and is matched with the radial through hole (101), and the other end of the screw rod assembly (2) is arranged in the connecting assembly (1) in a penetrating mode;

driving piece (3), driving piece (3) are located lead screw subassembly (2) with the junction of coupling assembling (1), driving piece (3) with lead screw subassembly (2) screw-thread fit, driving piece (3) can drive when rotating lead screw subassembly (2) are followed the axial motion of pivot (100).

2. Shaft pin dismounting mechanism according to claim 1, characterized in that the screw assembly (2) comprises:

a fixing piece (21), the fixing piece (21) being fitted in the radial through hole (101);

the screw rod (22), screw rod (22) wear to establish in axial hole (102), the one end of screw rod (22) with mounting (21) are connected, and the other end wears to establish in coupling assembling (1), driving piece (3) cooperation is in on the screw rod (22).

3. Shaft pin dismounting mechanism according to claim 2, characterized in that the screw (22) is screwed to the fixing part (21), the screwing direction of the screw (22) and the fixing part (21) being the same as the rotation direction in which the driving part (3) moves the screw (22) away from the external device (103).

4. The axle pin dismounting mechanism according to claim 2, characterized in that, the screw rod assembly (2) further comprises a fastener (23), the fastener (23) is sleeved on the screw rod (22), the fastener (23) is used for reinforcing the connection relationship between the screw rod (22) and the fixing member (21).

5. Shaft pin dismounting mechanism according to claim 1, characterized in that the connection assembly (1) comprises:

the screw rod assembly (2) is arranged in the connecting piece (11) in a penetrating mode;

the two supporting pieces (12) are respectively arranged on two sides of the shaft pin (100) which are opposite to each other, one end of each supporting piece (12) penetrates through the connecting piece (11), and the other end of each supporting piece (12) is connected with the external device (103).

6. Shaft pin dismounting mechanism according to claim 5, characterized in that the support (12) comprises a support rod (121) and an engagement portion (122), one end of the support rod (121) is penetrated in the connection piece (11) and the other end is penetrated with the engagement portion (122), the engagement portion (122) is engaged with the external device (103) to connect the support (12) and the external device (103).

7. Shaft pin dismounting mechanism according to claim 5, characterized in that the cross section of the cooperation of the support (12) and the connection piece (11) is non-circular.

8. The axle pin dismounting mechanism according to claim 7, characterized in that said support member (12) is provided with a square hole (123), and the portion of said connecting member (11) fitted in said square hole (123) is a square rod.

9. The axle pin dismounting mechanism according to claim 5, characterized in that it further comprises a locking element provided through the junction of the support (12) and the connecting piece (11), said locking element being adapted to prevent rotation of the connecting piece (11) relative to the support (12).

10. Shaft pin dismounting mechanism according to any of claims 1-9, characterized in that the driving member (3) is a nut.

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