CN213197372U - Hydraulic mechanism dismouting device - Google Patents

Abstract

The utility model discloses a hydraulic mechanism dismounting device which can be used for dismounting a main shaft component of a hydraulic mechanism, comprising a transfer piece, a fixing piece and a clamping piece; the adapter comprises a connecting part and an extending part which is arranged on the connecting part and extends outwards, and the adapter is connected with the connecting part through the connecting part and is clamped through the extending part; the fixing piece is connected with the bottom and/or the periphery of the clamping ring so as to limit the clamping ring to rotate along with the main shaft; the clamping piece comprises an operation part and a clamping part at least arranged at one end of the operation part, and the clamping piece can clamp the extension part and the spindle through the clamping part and rotate or fixedly operate through the operation part. When the clamping ring is specifically implemented, the connecting piece is matched with the clamping piece to complete the disassembly and assembly of the connecting part, and the fixing piece is matched with the clamping clip to complete the disassembly and assembly of the clamping ring.

Description

Hydraulic mechanism dismouting device

Technical Field

The utility model relates to a hydraulic pressure mechanism technical field, in particular to hydraulic pressure mechanism dismouting device.

Background

In the prior art, a spindle assembly of a hydraulic mechanism is connected with a housing, for example, an FB2T type hydraulic mechanism is adopted in an ultrahigh-voltage circuit breaker hydraulic mechanism in a bay high-voltage switching station, and the spindle assembly is connected with the housing through an adapter. Knowing, hydraulic pressure mechanism mainly accomplishes the effect that kinetic energy transmission and be connected with the circuit breaker action bars through main shaft assembly's main shaft. Because the main shaft is pushed by the high-pressure oil loop to move at a high speed in the action process of the main shaft, the breaker operating rod is driven to complete the opening and closing operation, the pressure is high and the speed is high in the whole process, so that the requirements on the firmness and the stability of the hydraulic mechanism are very high, and the hydraulic mechanism needs to be disassembled periodically and sealing parts need to be replaced according to the maintenance requirements of equipment.

Because the field installation torque requirement value of the fixed snap ring of the connecting piece at the top of the main shaft of the hydraulic mechanism and the fixed snap ring of the main shaft sleeve at the bottom is 660Nm, and thread fastening glue is smeared on threads, the related parts are very difficult to disassemble and assemble, and the existing common tools cannot be disassembled and assembled.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model lies in, to the aforesaid of prior art utilize the existing tool can't carry out the connecting piece of hydraulic pressure mechanism and the installation of snap ring and the defect of dismantlement, provide a press mechanism dismouting device.

The utility model provides a technical scheme that its technical problem adopted is: the utility model provides a structure pressure mechanism dismouting device is applied to the main shaft assembly of dismouting hydraulic pressure mechanism, main shaft assembly includes main shaft, connecting piece, main shaft cover and snap ring, the main shaft is equipped with connecting piece connecting portion, draw-in groove, boss and snap ring connecting portion in proper order on its axial length direction, the connecting piece spiro union is in on the connecting piece connecting portion, the snap ring spiro union is in on the snap ring connecting portion, in order to cooperate the boss will the main shaft cover is fixed on the main shaft, hydraulic pressure mechanism dismouting device includes:

the adapter comprises a connecting part and an extending part which is arranged on the connecting part and extends outwards, and the adapter is connected with the connecting part through the connecting part and is clamped through the extending part;

the fixing piece is connected with the bottom and/or the periphery of the clamping ring so as to limit the clamping ring to rotate along with the main shaft;

the clamping piece comprises an operation part and a clamping part at least arranged at one end of the operation part, and the clamping piece can clamp the extension part and the spindle through the clamping part and rotate or fixedly operate through the operation part.

Preferably, the connecting portion includes a first end corresponding to the attachment of the connecting member and a second end opposite to the first end, the extending portion is disposed at the second end, and the connecting portion is connected to the connecting member through a first locking structure.

Preferably, the first locking structure includes a second bolt hole penetrating through the first end and the second end of the connecting part and correspondingly matching with a first bolt hole on the connecting part, and a first bolt passing through the second bolt hole and the first bolt hole to lock the connecting part and the connecting part.

Preferably, the fixing part is provided with a sleeve-joint through hole for sleeve joint on the main shaft, two sides of the sleeve-joint through hole are raised to form a limiting part, the limiting part is nested on the periphery of the clamping part of the clamping ring, and the fixing part is fixed through the second locking structure.

Preferably, the second locking structure includes a third bolt hole penetrating through the limiting portion, and a second bolt penetrating through the third bolt hole and being provided in a fourth bolt hole of the fixing mechanism to lock the fixing member to the fixing mechanism.

Preferably, the clamping portion is provided with a clamping through hole which can be sleeved on the periphery of the extension portion, the outer edge of the extension portion is polygonal, and the cross section of the clamping through hole is polygonal matched with the extension portion.

Preferably, the outer edge of the extension part is in a regular hexagon shape, and the cross section of the clamping through hole is in a regular hexagon shape.

Preferably, the clamping part is provided with a clamping through hole which can be sleeved on the periphery of the clamping groove, the cross section of the clamping groove is in a regular hexagon shape, and the cross section of the clamping through hole is in a regular hexagon shape matched with the clamping groove.

Preferably, the clamping portion comprises a clamping main body connected with the operating portion and a head portion, and the clamping main body and the head portion are connected through a third locking structure to enclose the clamping through hole.

Preferably, the head portion is disposed opposite to the operating portion, and the third locking structure includes a fifth bolt hole penetrating through both sides of the head portion, a sixth bolt hole opened on both sides of the free end of the clamping body, and a third bolt penetrating through the fifth bolt hole and the sixth bolt hole to connect the head portion and the clamping body.

Implement the utility model discloses a hydraulic pressure mechanism dismouting device has following beneficial effect:

when the connecting part is disassembled and assembled, the connecting part of the adapter is connected with the connecting piece, the extending part of the adapter is clamped by the clamping part of one clamping piece, and the clamping groove of the main shaft is clamped by the other clamping piece, so that the disassembling and the assembling of the connecting part are completed by rotating at least one operating part; when the fixing piece is disassembled and assembled, the clamping ring is fixed through the fixing piece, the main shaft is clamped through the clamping part of the clamping piece, the clamping ring is disassembled and assembled by rotating the operation part, and the clamping device has the characteristic of being simple and convenient to operate.

Drawings

The invention will be further explained with reference to the drawings and examples, wherein:

FIG. 1 is a schematic structural view of a spindle assembly of a prior art hydraulic machine;

FIG. 2 is a schematic structural view of a spindle of the spindle assembly shown in FIG. 1;

fig. 3 is a schematic structural view of an embodiment of the adapter of the present invention;

fig. 4 is a schematic structural view of an embodiment of a first locking structure of the present invention;

fig. 5 is a schematic structural view of an embodiment of the fixing member of the present invention;

FIG. 6 is a schematic view of an embodiment of a clamp of the present invention;

FIG. 7 is a schematic view of the structure of the holder of FIG. 6 in another state;

FIG. 8 is a schematic structural view of the adapter of FIG. 3 after it has been connected to the coupling portion of the spindle assembly of FIG. 1;

FIG. 9 is a schematic view of the adapter connected to the connection portion after the clamp of FIG. 6 is connected to the clamp of FIG. 8;

FIG. 10 is a schematic view of the spindle assembly shown in FIG. 1 after the attachment portion has been removed;

FIG. 11 is a schematic structural view of the fixing member shown in FIG. 5 coupled to the spindle assembly shown in FIG. 10 after the coupling portion is removed;

fig. 12 is a schematic view showing a coupling structure of the clamping member shown in fig. 6 and the fixing member shown in fig. 11 coupled to the spindle assembly after the coupling portion is removed.

In the drawing, 1 is a main shaft, 11 is a connecting piece connecting part, 12 is a clamping groove, 13 is a boss, 14 is a clamping ring connecting part, 2 is a connecting piece, 21 is a first bolt hole, 3 is a main shaft sleeve, 4 is a sealing gasket, 5 is a clamping ring, 51 is a clamping part, 6 is an adapter piece, 61 is a connecting part, 611 is a first end, 612 is a second end, 62 is an extending part, 621 is an outer edge, 7 is a fixing piece, 71 is a sleeving through hole, 72 is a limiting part, 721 is a third bolt hole, 8 is a clamping piece, 81 is an operating part, 82 is a clamping part, 821 is a clamping main body, 8211 is a sixth bolt hole, 822 is a head part, 8221 is a fifth bolt hole, 823 is a clamping through hole, 10 is a first locking structure, 101 is a second bolt hole, 102 is a first bolt, 20 is a third locking structure, 201 is a third bolt.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the following description, in conjunction with the examples and the accompanying drawings, is intended to illustrate the present invention in further detail, and the exemplary embodiments and the description thereof are only used for explaining the present invention, and are not intended to limit the present invention.

The utility model discloses a hydraulic pressure mechanism dismouting device is applicable to the main shaft subassembly of dismouting hydraulic pressure mechanism, specifically is applicable to the dismouting of the hydraulic pressure mechanism of models such as FB2T, FB1T, FB2TD among the prior art, as shown in FIG. 1, the main shaft subassembly of the hydraulic pressure mechanism of this model includes main shaft 1, connecting piece 2, spindle sleeve 3, sealed 4 and snap ring 5 of filling up. Referring to fig. 2, the main shaft 1 is sequentially provided with a connecting member connecting portion 11, a clamping groove 12, a boss 13, and a snap ring connecting portion 14 in a length direction thereof, wherein the connecting member connecting portion 11 and the snap ring connecting portion 14 are provided with threads (not shown), the connecting member 2 is fixed to the connecting member connecting portion 11 by screw connection, the snap ring 5 is fixed to the snap ring connecting portion 14 by screw connection, and the main shaft sleeve 3 and the seal gasket 4 are fixed to the main shaft 1 by the boss 13.

It will be appreciated that the coupling member 2 is fixed to the coupling member connecting portion 11 by screwing, the main shaft 1 is connected to the hydraulic mechanism housing, and the packing 4 needs to be replaced periodically, so that the removal of the coupling member 2 and the clamp ring 5 from the main shaft is a necessary step for the disassembly of the hydraulic mechanism. The utility model discloses in, adopt hydraulic pressure mechanism dismouting device, with connecting piece 2, the cooperation of snap ring 5 to through fixed or rotation operation, can accomplish main shaft assembly's dismantlement and installation operation, thereby solve the unable dismouting of main shaft unit and carry out the difficult problem of big power school tightly.

The hydraulic mechanism dismounting device comprises an adapter 6, a fixing piece 7 and a clamping piece 8. As can be understood, the connecting piece 2 and the snap ring 5 are screwed on the main shaft 1, in order to prevent the connecting piece 2 and the snap ring 5 from rotating together with the main shaft 1 during the installation or disassembly process, in this embodiment, the connecting piece 2 is matched with at least one clamping piece 8 to disassemble and assemble the connecting piece 2, and the snap ring 5 is matched with the clamping piece 8 to disassemble and assemble the snap ring 5.

As shown in fig. 3, the adaptor 6 includes a connecting portion 61 and an extending portion 62, the connecting portion 61 is used for being connected with the connecting member 2, the extending portion 62 is disposed on the connecting portion 61 and extends outwards, and is used for clamping to perform rotation or fixing operation when the connecting portion 61 is connected with the connecting member 2, so that the connecting member 2 is assembled and disassembled by being matched with the connecting member 2. Wherein, the connecting portion 61 includes a first end 611 for fitting with the connecting member 2 and a second end 612 opposite to the first end 611, the extending portion 62 can be disposed on the second end 612 or any position between the first end 611 and the second end 612, for facilitating the operations of clamping, rotating, fixing, etc., preferably, the extending portion 62 is disposed on the second end 612, and the connecting portion 61 is connected with the connecting member 2 through the first locking structure 10. In some embodiments, the connecting portion 61 may adopt other fixing structures, for example, the connecting portion 61 is provided with a plurality of teeth on the periphery thereof, and is connected with the connecting member 2 by grabbing the connecting member 2.

To improve the convenience of operation, the first locking structure adopts a bolt fixing structure, and as shown in fig. 4, the first locking structure includes a first bolt hole 21, a second bolt hole 101, and a first bolt 102. The first bolt hole 21 is formed in the connecting member 2, and is used for being mounted on equipment and connected with a main shaft of a circuit breaker, a thread is arranged in the first bolt hole 21, the second bolt hole 101 is formed in the connecting portion 61, the first end 611 and the second end 612 penetrating through the connecting portion 61 are correspondingly matched with the first bolt hole 21, and the first bolt 102 is used for passing through the second bolt hole 101 and the first bolt hole 21 to lock the connecting portion 61 and the connecting member 2. Since the number of the first bolt holes 21 provided in the connecting member 2 is 6, in order to ensure the connection firmness of the two, the second bolt holes 101 are arranged at intervals along the circumferential direction of the connecting portion 61 so as to correspond to the first bolt holes 21 one by one, and it can be understood that the number of the second bolt holes 101 may also be a smaller number. Preferably, the connecting portion 61 is cylindrical and has the same diameter as the connecting member 2, and the first bolt 102 is an M121 bolt.

As shown in fig. 5, the fixing member 7 is adapted to be coupled to the bottom and/or outer periphery of the snap ring 5 to restrict the snap ring 5 from rotating with the main shaft 1. In this embodiment, the fixing member 7 is provided with a sleeve through hole 71 for being sleeved on the spindle 1, two sides of the sleeve through hole 71 are protruded to form a limiting portion 72, the limiting portion 72 is used for being nested on the periphery of the clamping portion 51 of the snap ring 5, and the fixing member 7 is fixed through the second locking structure.

It can be understood that the snap ring 5 includes a first ring member corresponding to the spindle sleeve 3 and a second ring member fixedly connected to the first ring member, and the second ring member is recessed inward on two sides symmetrical in the circumferential direction to form a flat snap-in portion 51. Correspondingly, the end faces of the limiting portions 72 on the sides corresponding to the clamping portions 51 are flatly arranged to be matched with the clamping portions 51, and the distance between the end faces of the limiting portions 72 on the two sides of the fixing member 7 is equal to the distance between the clamping portions 51 on the two sides of the clamping ring 5, so that the fixing effect of the fixing member 7 on the clamping ring 5 is ensured. Preferably, the height of the limiting portion 72 is less than or equal to the height of the clamping portion 51. In some embodiments, the fixing member 7 may be connected to the bottom of the snap ring 5 by a fixing structure, thereby fixing the snap ring 5; in other embodiments, the fixing pieces 7 are provided on both sides of the snap ring 5, and the snap ring 5 is fixed from both sides by abutting against the snap-in portions 51 on both sides.

In this embodiment, the fixing member 7 is fixed to the fixing mechanism, and the rotation of the snap ring 5 along with the main shaft 1 is limited by fixing the snap ring 5 by the fixing member 7. Wherein, the fixing member 7 is fixed by a second locking structure, and the second locking structure adopts a bolt fixing structure. Specifically, the second locking structure includes a third bolt hole 721, a fourth bolt hole, and a second bolt. The third bolt hole 721 is disposed on the fixing member 7, and penetrates through the limiting portions 72 disposed on both sides, the fourth bolt hole is disposed on the fixing mechanism, and the second bolt is used to pass through the third bolt hole 721 and the fourth bolt hole to lock the fixing member 7 on the fixing mechanism. Wherein, the fixing mechanism is a special worktable and the like, and the second bolt adopts an M14 bolt.

In order to prevent that in the installation or dismantlement process, because of connecting piece 2, snap ring 5 follow main shaft 1 and rotate together, and lead to unable dismouting. In this embodiment, the adapter 6 is matched with at least one clamping piece 8 to disassemble and assemble the connecting piece 2, and the fixing piece 7 is matched with the clamping piece 8 to disassemble and assemble the snap ring 5. Specifically, the clamping member 8 can be used for fixing or rotating the adaptor 6 and for fixing or rotating the spindle 1 by clamping the adaptor 6 and the spindle 1.

The clamping member 8 includes an operation portion 81 and a clamping portion 82 at least disposed at one end of the operation portion 81, and the clamping member 8 can clamp the extension portion 62 and the spindle 1 through the clamping portion 82 and perform a rotating or fixing operation through the operation portion 81. As shown in fig. 6, the clamping portion 82 is provided with a clamping through hole 823 for being sleeved on the outer edge 621 of the extending portion 62 or the outer periphery of the main shaft 1, in the embodiment for being sleeved on the outer edge 621 of the extending portion 62, in order to improve the clamping fixing effect, the outer edge 621 of the extending portion 62 is provided with a polygon, and the cross section of the clamping through hole 823 is provided with a polygon matched with the outer edge 621 of the extending portion 62.

In the embodiment for being fitted around the outer periphery of the spindle 1, the clamping through hole 823 is adapted to the shape of the part clamped on the spindle 1. For improving the fastness of centre gripping, centre gripping through-hole 823 realizes main shaft 1's centre gripping on the periphery of draw-in groove 12 through the centre gripping, because the cross section of draw-in groove 12 is regular hexagon, the cross section of centre gripping through-hole 823 sets up to be regular hexagon with draw-in groove 12 complex. Further, the outer edge 621 of the extension portion 62 is disposed in a regular hexagon shape in accordance with the shape of the slot 12, so that the clamping through hole 823 is commonly used for clamping the extension portion 62 and the slot 12 of the spindle 1. It will be appreciated that the cooperating action of the plurality of gripping portions 82 may be employed during the disassembly and assembly process.

Understandably, the clamping through hole 823 of the clamping piece 8 is in a regular hexagon arrangement, and the mode that all the six surfaces are stressed and clamped is in contact with the extending part 62 and the clamping groove 12, so that the stress surfaces are more, the clamping through part 82 can be effectively prevented from slipping off from the clamping surface due to overlarge torque in the clamping process, and further the clamping surface is damaged, and the connecting piece 2 cannot be normally detached.

As shown in fig. 7, in order to facilitate the socket arrangement of the clamping portion 82 to the relevant portion, the clamping portion 82 includes a clamping main body 821 connected with the operation portion 81 and a head portion 822, and the clamping main body 821 and the head portion 822 are connected through the third locking structure 20 to enclose a clamping through hole 823. Wherein, the third locking structure 20 adopts a bolt fixing structure, specifically, the third locking structure 20 includes a fifth bolt hole 8221, a sixth bolt hole 8211 and a third bolt 201, the fifth bolt hole 8221 penetrates through the two sides of the head portion 822, the sixth bolt hole 8211 is opened on the two sides of the free end of the clamping main body 821, and the third bolt 201 is used for penetrating through the fifth bolt hole 8221 and the sixth bolt hole 8211 to connect the head portion 822 and the clamping main body 821. It will be appreciated that the clamping portion 82 can be sleeved directly on the outer edge 621 of the extending portion 62, and the connecting portion 61 can be disassembled and assembled through the third locking structure 20 to be sleeved on the card slot 12. Preferably, the height of the holding portion 82 is smaller than that of the card slot 12, and the head portion 822 is disposed opposite to the operation portion 81.

Use the utility model discloses a hydraulic pressure mechanism dismouting device dismouting main shaft assembly's application method as follows:

s1, taking out the adaptor 6, corresponding the first end 611 of the adaptor 6 to the free side of the connector 2, adjusting the adaptor 6 to have the second bolt holes 101 thereof corresponding to the first bolt holes 21 on the connector 2 one by one, and locking the adaptor 6 on the connector 2 by using a plurality of first bolts 102, as shown in fig. 8;

s2, two clamping members 8 are adopted, wherein one clamping member 8 is directly sleeved on the outer edge 621 of the extension portion 62 through the clamping portion 82 thereof, and the other clamping member 8 is sleeved on the card slot 12 through the third locking mechanism for detaching the head portion 822 and the clamping main body 821, as shown in fig. 9;

the connecting piece 2 is disassembled and assembled by rotating at least one clamping clip; wherein, the method comprises fixing one operation part 81, rotating the other operation part 81, or simultaneously rotating the two operation parts 81 in opposite directions, so as to detach the connecting piece 2 from the main shaft assembly, as shown in fig. 10, the main shaft assembly shown in fig. 10 can be disassembled from the hydraulic mechanism main body;

s3, taking out the fixing member 7, making the end surfaces of the limiting parts 72 on the two sides of the fixing member 7 correspond to the end surfaces of the clamping parts 51 of the snap ring 5, and performing matched clamping, as shown in fig. 11; then the fixing piece 7 is locked on the fixing mechanism through a second bolt to complete the fixation of the clamping ring 5;

s4, using a clamping member 8, and as in the above step S2, sleeving the clamping portion 82 of the clamping member 8 on the clamping groove 12 to clamp the spindle 1, as shown in fig. 12, and driving the spindle 1 to rotate by the operation portion 81 of the clamping member 8, detaching the snap ring 5 from the spindle 1, and taking out the spindle cover 3 and the sealing pad 4 to obtain the spindle 1, as shown in fig. 2;

s5, the seal 4 can be replaced and the inside of the main shaft 1 can be cleaned after the disassembly.

It is understood that the above steps are exemplified by disassembling the spindle assembly, and the method of using the hydraulic mechanism device is explained, and it is understood that the method of using the same is also applicable to the mounting of the corresponding components and the large moment tightening, wherein the rotating or fixing operation of the operation portion 81 of the clamp 8 can be performed manually or by machine.

The utility model discloses in, adopt adaptor 6 and an at least holder 8 cooperation, mounting 7 and holder 8 complex mode, effectively carry out the dismantlement and the installation of hydraulic pressure mechanism's main shaft assembly, have convenient operation, safe characteristics.

It is to be understood that the foregoing examples merely represent preferred embodiments of the present invention, and that the description thereof is more specific and detailed, but not intended to limit the scope of the invention; it should be noted that, for those skilled in the art, the above technical features can be freely combined, and several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention; therefore, all changes and modifications that come within the meaning and range of equivalency of the claims are to be embraced within their scope.

Claims (10)

1. The utility model provides a hydraulic pressure mechanism dismouting device, is applied to the main shaft assembly of dismouting hydraulic pressure mechanism, main shaft assembly includes main shaft (1), connecting piece (2), main shaft cover (3) and snap ring (5), main shaft (1) is equipped with connecting piece connecting portion (11), draw-in groove (12), boss (13) and snap ring connecting portion (14) in proper order on its axial length direction, connecting piece (2) spiro union is in on connecting piece connecting portion (11), snap ring (5) spiro union is in on snap ring connecting portion (14), in order to cooperate boss (13) will main shaft cover (3) are fixed on main shaft (1), its characterized in that, hydraulic pressure mechanism dismouting device includes:

the adapter (6) comprises a connecting part (61) and an extending part (62) which is arranged on the connecting part (61) and extends outwards, and the adapter (6) is connected with the connecting part (2) through the connecting part (61) and is clamped through the extending part (62);

the fixing piece (7) is connected with the bottom and/or the periphery of the clamping ring (5) to limit the clamping ring (5) to rotate along with the main shaft (1);

the clamping piece (8) comprises an operation part (81) and a clamping part (82) at least arranged at one end of the operation part (81), the clamping piece (8) can clamp the extension part (62) and the spindle (1) through the clamping part (82), and the operation part (81) is used for rotating or fixing operation.

2. The hydraulic mechanism attaching and detaching device according to claim 1, characterized in that:

the connecting part (61) comprises a first end (611) corresponding to the attachment of the connecting part (2) and a second end (612) opposite to the first end (611), the extension part (62) is arranged on the second end (612), and the connecting part (61) is connected with the connecting part (2) through a first locking structure (10).

3. The hydraulic mechanism attaching and detaching device according to claim 2, characterized in that:

the first locking structure (10) comprises a second bolt hole (101) penetrating through the first end (611) and the second end (612) of the connecting part (61) and correspondingly matching with a first bolt hole (21) on the connecting part (2), and a first bolt (102) passing through the second bolt hole (101) and the first bolt hole (21) to lock the connecting part (61) and the connecting part (2).

4. The hydraulic mechanism attaching and detaching device according to claim 1, characterized in that:

be equipped with on mounting (7) and supply to cup joint through-hole (71) on main shaft (1), cup joint the protruding spacing portion (72) that forms in both sides of through-hole (71), spacing portion (72) are nested in on the periphery of joint portion (51) of snap ring (5), mounting (7) carry out fixed operation through second locking structure.

5. The hydraulic mechanism attaching and detaching device according to claim 4, characterized in that:

the second locking structure comprises a third bolt hole (721) penetrating through the limiting part (72) and a second bolt penetrating through the third bolt hole (721) and a fourth bolt hole arranged on a fixing mechanism so as to lock the fixing piece (7) on the fixing mechanism.

6. The hydraulic mechanism attaching and detaching device according to claim 1, characterized in that:

the clamping portion (82) is provided with a clamping through hole (823) which can be sleeved on the periphery of the extension portion (62), the outer edge (621) of the extension portion (62) is polygonal, and the cross section of the clamping through hole (823) is polygonal in fit with the extension portion (62).

7. The hydraulic mechanism attaching and detaching device according to claim 6, characterized in that:

the outer edge (621) of the extension part (62) is in a regular hexagon shape, and the cross section of the clamping through hole (823) is in a regular hexagon shape.

8. The hydraulic mechanism attaching and detaching device according to claim 1, characterized in that:

the clamping portion (82) is provided with a clamping through hole (823) which can be sleeved on the periphery of the clamping groove (12), the cross section of the clamping groove (12) is in a regular hexagon shape, and the cross section of the clamping through hole (823) is in a regular hexagon shape matched with the clamping groove (12).

9. The hydraulic mechanism attachment/detachment apparatus according to any one of claims 6 to 8, characterized in that:

the clamping part (82) comprises a clamping main body (821) connected with the operation part (81) and a head part (822), and the clamping main body (821) and the head part (822) are connected through a third locking structure (20) to enclose the clamping through hole (823).

10. The hydraulic mechanism attaching and detaching device according to claim 9, characterized in that:

the head portion (822) is disposed opposite to the operation portion (81), and the third locking structure (20) includes a fifth bolt hole (8221) penetrating through the head portion (822) on both sides thereof, a sixth bolt hole (8211) opened on both sides of a free end of the clamp body (821), and a third bolt (201) penetrating through the fifth bolt hole (8221) and the sixth bolt hole (8211) to connect the head portion (822) and the clamp body (821).

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