Pin shaft pulling mechanism

Abstract

A pin shaft pulling mechanism comprises a base, and a front baffle is integrally arranged on the front face of the base. A drawing mechanism is arranged on the base, and a piston of the drawing mechanism penetrates out of the front baffle. A drawing sleeve is arranged on the piston in a pluggable connection mode, and a pin lock piece is arranged between the drawing sleeve and the piston. A screw assembling base is arranged on the front portion of the drawing sleeve, and a screw is arranged on the screw assembling base. The device solves the problem that in the prior art, four sets of shaft bodies are inconvenient to disassemble, the device is suitable for drawing and disassembling of various shaft bodies and shaft sleeves, and particularly, the front baffle and the screw rod are matched with each other, so that the drawing action is stable, and the drawing stroke is correspondingly increased. And the equipment is simple in structure, convenient to maintain, stable in operation and higher in popularization value.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of maintenance equipment, especially a pin shaft pulling mechanism. BACKGROUND

[0002] Coal mining face coal machine and other equipment long time high intensity service, easy to appear various faults. In the rescue or daily maintenance of various mechanical and electrical equipment, the equipment often needs to be disassembled and inspected. Because various motors, shafts, keys, pins and other parts are generally shrink fitted, even if the pin shaft part is configured with an internal thread sleeve, it is still very difficult to remove;

[0003] Specifically, after the pin shaft internal thread tap is inserted into the screw rod, a pulling hammer needs to be welded on the screw rod, and then the pulling mechanism is used for pulling. Because the stroke of the pulling mechanism is limited, the shaft body often needs to be pulled multiple times with the cooperation of pads and other equipment, and the overall maintenance process is very complicated and low in efficiency. UTILITY MODEL CONTENTS

[0004] The utility model aims at overcoming the prior art deficiencies, providing a pin shaft pulling mechanism which is simple in structure, efficient in operation, suitable for separating and pulling various shaft bodies and shaft sleeves with internal threads, and convenient to use.

[0005] The device comprises a base, and the base is a base assembly part of the device;

[0006] A front baffle is integrally arranged on the front of the base;

[0007] A pulling mechanism is arranged on the top of the base, and a piston of the pulling mechanism penetrates through the front baffle;

[0008] A pulling sleeve is connected to the piston by plugging, and a pin locking part is arranged between the pulling sleeve and the piston;

[0009] A screw rod assembly base is arranged at the front of the pulling sleeve, and a screw rod is arranged on the screw rod assembly base.

[0010] Further, the screw rod assembly base is a solid shaft, the screw rod is provided in multiple sizes, and each size of the screw rod is centrally provided with an assembly hole, and the assembly hole is tightly combined with the screw rod assembly base;

[0011] A pin hole is arranged between the screw rod assembly base and the screw rod, and the screw rod assembly base and the screw rod are fixedly connected through the pin.

[0012] The effect achieved is that the screw rod is tapped into the shaft body with an internal thread, and is fixedly connected with the screw rod assembly base, the pulling sleeve is fixedly connected with the piston, the front baffle is limited, the shaft body is combined with the mechanical outer wall, and the pulling mechanism is started to drive the shaft body to move in the piston retraction direction.

[0013] The utility model discloses the beneficial effect is: the utility model solves the inconvenient problem of disassembling four sets of shaft body in the prior art, is applicable to the drawing split between various shaft body, shaft sleeve, especially the front baffle of the equipment cooperates with screw rod, can make drawing action stable, corresponding growth drawing stroke. And the equipment structure is simple, and the maintenance is convenient, and the operation is stable, and more has the popularization value. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is the structure schematic diagram of pin shaft drawing mechanism of the utility model;

[0015] Figure 2 It is based on Figure 1 The side view of the front baffle is based on the perspective view;

[0016] Figure 3 It is Figure 1 The local enlarged view of;

[0017] Reference signs:

[0018] 1-screw rod 2-pin shaft 3-screw rod assembly base 4-drawing sleeve 5-piston 6-pressing screw rod 7-front baffle 8-drawing mechanism 9-drawing mechanism fixed platform 10-base 11-adjustable high connecting rod 12-supporting base

[0019] 71-piston through hole 72-screw hole

[0020] The utility model discloses the realization, functional characteristics and advantages will be combined with embodiment, and further explanation is made with reference to the drawings. DETAILED DESCRIPTION

[0021] With reference to Figure 1 、 Figure 2 And Figure 3 The utility model discloses a pin shaft drawing mechanism, including base 10, the base 10 is the assembly base piece of the equipment of the utility model;

[0022] The front baffle 7 is integrally arranged on the front of the base 10;

[0023] The drawing mechanism 8 is arranged on the base 10, and the piston 5 of the drawing mechanism 8 is arranged through the front baffle 7;

[0024] The drawing sleeve 4 is connected to the piston 5, and the pin lock piece is arranged between the drawing sleeve 4 and the piston 5;

[0025] The screw rod assembly base 3 is arranged in the front of the drawing sleeve 4, and the screw rod 1 is arranged on the screw rod assembly base 3.

[0026] Further, the screw assembly base 3 is a solid shaft, the screw 1 is provided with various size specifications, and each size specification of the screw 1 is centrally provided with an assembly hole, the assembly hole is closely matched with the screw assembly base 3.

[0027] A pin hole is arranged between the screw assembly base 3 and the screw 1, and the screw assembly base 3 and the screw 1 are fixedly connected through the pin shaft 2.

[0028] The effect achieved is that the screw 1 is screwed into the shaft body with internal threads, and is fixedly connected with the screw assembly base 3, and after the pulling sleeve 4 is fixedly connected with the piston 5, the front baffle 7 is limited to make it fit the mechanical outer wall of the shaft body, and the shaft body is displaced in the retraction direction of the piston 5 by starting the pulling mechanism 8.

[0029] Further, the pulling sleeve 4 and the piston 5 are fixedly connected through the pin shaft 2.

[0030] The effect achieved is that the equipment is convenient to disassemble, maintain and assemble.

[0031] Further, the front baffle 7 is provided with a piston passing hole 71, and the piston passing hole 71 is closely matched with the piston 5.

[0032] A plurality of groups of screw holes 72 are uniformly arranged around the piston passing hole 71, and a jacking screw 6 is screwed into the screw hole 72.

[0033] The effect achieved is that the jacking screw 6 is used to jack the outer wall of the equipment, and the screw assembly form can adjust the length of the jacking screw 6 protruding based on the front baffle 7, so that it is jacked on the outer wall of the equipment, and in this case, the pulling mechanism 8 acts to pull the shaft body in the equipment outwards.

[0034] At the same time, by adjusting the protruding length of the jacking screw 6, the pulling length of the pulling mechanism 8 is equivalent to being lengthened, that is, after the shaft body is pulled out for a period of time, the jacking screw 6 is adjusted to have a longer protruding length, and the shaft body can be continuously pulled out according to the above assembly form.

[0035] Further, the pulling mechanism 8 is a hydraulic cylinder.

[0036] Further, the base 10 is provided with a pulling mechanism fixed platform 9, and the pulling mechanism 8 is fixedly arranged on the pulling mechanism fixed platform 9.

[0037] An adjustable height connecting rod 11 is arranged below the base 10, and a supporting base 12 is fixedly arranged on the bottom surface of the connecting rod.

[0038] The effect achieved is that the equipment is convenient to stably configure.

[0039] The basic principle and main features of the present application and the advantages of the present application are shown and described above. For those skilled in the art, it is obvious that the present application is not limited to the details of the above exemplary embodiments, and the present application can be implemented in other specific forms without departing from the spirit or basic characteristics of the present application. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be considered as limiting and the claims.

[0040] In addition, it should be understood that, although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be appropriately combined to form other embodiments that those skilled in the art can understand.

Claims

1. A pin puller mechanism comprising a base, characterised in that: The front baffle is integrally arranged on the front of the base; The pulling mechanism is arranged on the base, and the piston of the pulling mechanism is arranged through the front baffle; The pulling sleeve is arranged on the piston through the plug-in connection, and the pin locking piece is arranged between the pulling sleeve and the piston; The screw assembly base is arranged on the front of the pulling sleeve, and the screw is arranged on the screw assembly base.

2. A pin puller according to claim 1, wherein, The screw assembly base is a solid shaft, the screw is provided in multiple size specifications, and the screw of each size specification is centrally provided with an assembly hole which is tightly arranged with the screw assembly base; The pin hole is arranged between the screw assembly base and the screw, and the screw assembly base and the screw are fixedly connected through the pin shaft.

3. A pin puller as defined in claim 1 wherein, The pulling sleeve and the piston are fixedly connected through the pin shaft.

4. A pin puller as defined in claim 1 wherein, The piston through hole is arranged on the front baffle, and the piston through hole is tightly arranged with the piston; Multiple groups of screw holes are uniformly arranged around the piston through hole, and the top pressing screw is screw-connected in the screw hole.

5. A pin puller as defined in claim 1 wherein, The pulling mechanism is a hydraulic cylinder.

6. A pin puller as defined in claim 1 wherein, The base is provided with a pulling mechanism fixing platform, and the pulling mechanism is fixedly arranged on the pulling mechanism fixing platform; The height-adjustable connecting rod is arranged on the bottom of the base, and the supporting base is fixedly arranged on the bottom surface of the connecting rod.

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