Locking nut dismounting and mounting device

Abstract

The utility model provides a locking nut dismounting and mounting device which comprises a matching dismounting and mounting piece and a barrel with an opening in the side portion, a first through hole and a second through hole are formed in the positions, on the two sides of the opening and opposite to each other, of the side portion of the barrel respectively, and the first through hole and the second through hole are both flush with a side hole in the side portion of a locking nut. And the two matched disassembly and assembly parts respectively penetrate through the first through hole and the second through hole and enter the side holes aligned with the first through hole and the second through hole. According to the utility model, the disassembly and assembly efficiency of the locking nut can be improved, the side hole of the locking nut is mainly subjected to shearing force applied by a matched disassembly and assembly piece in the process of rotating the barrel, the side hole of the locking nut is prevented from being damaged, the service life of the locking nut is prolonged, and the maintenance cost of a compressor unit is effectively reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to high pressure gas injection compressor unit maintenance technical field, specifically, relate to a locking nut dismounting device. BACKGROUND

[0002] High pressure gas injection compressor unit usually needs regular maintenance inspection, and the specific maintenance items include replacing piston ring and sealing packing, and in the maintenance process, the locking nut of the piston rod usually needs to be dismounted. When dismounting the locking nut, the following method is usually adopted: one end of the cylindrical pin is inserted into the side hole of the round nut, and then the other end of the cylindrical pin is pressed by a jack and rotated. This way of prying the nut by lever force and rotating easily causes the side hole of the locking nut to deform, and after a certain number of times of dismounting, the cylindrical pin cannot be inserted into the side hole of the locking nut to apply lever force, thereby causing the round nut to be unable to be used, and reducing the dismounting efficiency of the locking nut. SUMMARY

[0003] One purpose of the utility model is to provide a locking nut dismounting device, so as to improve the dismounting efficiency of the locking nut, and in the process of rotating the cylinder body, the side hole of the locking nut is mainly subjected to the shearing force applied by the matching dismounting piece, so as to avoid damaging the side hole of the locking nut and improve the service life thereof, thereby effectively reducing the maintenance cost of the compressor unit.

[0004] According to the utility model, a locking nut dismounting device is provided, which comprises: a matching dismounting piece and a cylinder body with an opening in the side portion, the side portion of the cylinder body is provided with a first through hole and a second through hole on the opposite positions on both sides of the opening, the first through hole and the second through hole are aligned with the side hole in the side portion of the locking nut, and the two matching dismounting pieces respectively pass through the first through hole and the second through hole and enter the side hole aligned therewith.

[0005] In a preferred embodiment, the cylinder body is provided with a handle on the side surface opposite to the opening.

[0006] In a preferred embodiment, the handle is fixed to the side surface of the cylinder body by welding.

[0007] In a preferred embodiment, the first through hole and the second through hole are aligned with the side hole in the side portion of the locking nut, and the two matching dismounting pieces respectively pass through the first through hole and the second through hole and enter the side hole aligned therewith.

[0008] In a preferred embodiment, the side portion of the cylinder body is further provided with a third through hole and a fourth through hole on the opposite positions on both sides of the opening, and the axis of the third through hole and the axis of the fourth through hole form a second axis line which is perpendicular to the axis of the cylinder body.

[0009] In a preferred embodiment, the first axis is 135° to the second axis.

[0010] In a preferred embodiment, the diameters of the first, second, third and fourth through holes and the side hole of the lock nut are the same.

[0011] In a preferred embodiment, the fitting dismounting member is a cylindrical pin.

[0012] In a preferred embodiment, the diameter of the fitting dismounting member is the same as the diameter of the first through hole.

[0013] In a preferred embodiment, the height of the fitting dismounting member is greater than or equal to the sum of the thickness of the cylinder and the depth of the side hole of the lock nut.

[0014] The utility model has at least the following technical effects:

[0015] According to the utility model, the cylinder with the opening on the side and the fitting dismounting member are provided. The first through hole and the second through hole are arranged on the opposite positions of the side of the cylinder at the two sides of the opening, the first through hole and the second through hole are aligned with the side hole on the side of the lock nut, and the two fitting dismounting members pass through the first through hole and the second through hole and enter the side hole aligned with the two fitting dismounting members, so that the dismounting efficiency of the lock nut can be improved. In the process of rotating the cylinder, the side hole of the lock nut is mainly subjected to the shearing force of the fitting dismounting member, so that the side hole of the lock nut is prevented from being damaged, the service life of the lock nut is improved, and the maintenance cost of the compressor unit is effectively reduced.

[0016] According to the utility model, the third through hole and the fourth through hole are further arranged on the opposite positions of the side of the cylinder at the two sides of the opening, the axis of the third through hole and the axis of the fourth through hole form the second axis perpendicular to the axis of the cylinder, and the two pairs of through holes can be alternately used in the process of dismounting the lock nut, so that the side hole of the lock nut is further prevented from being damaged, the service life of the lock nut is improved, and the maintenance cost of the compressor unit is effectively reduced.

[0017] According to the utility model, the first axis is 135° to the second axis, so that the lock nut can be dismounted in the most suitable position in the limited operation space without being limited by the position of the side hole of the lock nut. BRIEF DESCRIPTION OF DRAWINGS

[0018] Fig. 1 The structure schematic view of the lock nut dismounting device according to one embodiment of the utility model is schematically shown;

[0019] Fig. 2 Another structure schematic view of the lock nut dismounting device according to one embodiment of the utility model is schematically shown.

[0020] In the present application, all the drawings are schematic drawings, only for illustrating the principle of the utility model, and are not drawn according to actual proportion. DETAILED DESCRIPTION

[0021] The technical scheme of the utility model will be described clearly and completely in combination with the drawings, obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by the ordinary skilled in the art without making creative labor belong to the protection scope of the utility model.

[0022] In the description of the utility model, it is understood that the terms "outer", "inner" and the like indicate the position or location relationship based on the position or location relationship shown in the drawings, only for the convenience of describing the utility model and simplifying the description, and not indicating or implying that the indicated device or element must have a particular orientation, a particular orientation and operation, therefore, it cannot be understood as a limitation on the utility model.

[0023] The terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can be explicitly or implicitly included one or more features. In the description of the utility model, the meaning of "multiple" is two or more.

[0024] In the utility model, unless otherwise explicitly specified and limited, the term "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrated; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium, it can be the internal communication of two elements or the interaction relationship of two elements. For the ordinary skilled in the art, the specific meaning of the above-mentioned term in the utility model can be understood according to the specific situation.

[0025] As Figs. 1-2 shown, the locking nut dismounting device 100 comprises a cylinder body 1 and a matching dismounting piece 4, an opening 11 is formed in the side of the cylinder body 1, so that the piston rod 2 can enter the cylinder body 1 through the opening 11, the locking nut 3 is configured as a cylinder, and a plurality of side holes are formed in the side thereof, the inner wall of the cylinder body 1 is in clearance fit with the outer wall of the locking nut 3, the first through hole 12 and the second through hole 13 are respectively arranged at the opposite positions of the side of the cylinder body 1 on both sides of the opening 11, the first through hole 12 and the second through hole 13 are both aligned with the side holes in the side of the locking nut 3, and the two matching dismounting pieces respectively pass through the first through hole 12 and the second through hole 13 and enter the side holes aligned therewith.

[0026] The use process of the locking nut dismounting device 100 is briefly described as follows. First, the cylinder 1 is sleeved on the outer periphery of the piston rod 2 from the opening 11 and is moved to the locking nut 3; the cylinder 1 is rotated according to the position of the side hole on the side of the locking nut 3, so that the first through hole 12 and the second through hole 13 are aligned with the side hole; the two matched dismounting pieces are respectively placed in the aligned holes, and the cylinder 1 is rotated in different directions (clockwise or counterclockwise), so that the dismounting of the locking nut 3 for the piston rod is realized.

[0027] According to the utility model, the matched dismounting piece and the cylinder 1 with the opening 11 on the side are provided. The first through hole 12 and the second through hole 13 are respectively arranged on the opposite positions of the side of the cylinder 1 on both sides of the opening 11, the first through hole 12 and the second through hole 13 are aligned with the side hole on the side of the locking nut 3, the two matched dismounting pieces respectively pass through the first through hole 11 and the second through hole 12 and enter the side hole aligned with the two holes, so that the dismounting efficiency of the locking nut 3 can be improved. In the process of rotating the cylinder 1, the side hole of the locking nut 3 is mainly subjected to the shearing force applied by the matched dismounting piece 4, so that damage to the side hole of the locking nut 3 is avoided, the service life of the locking nut 3 is improved, and the maintenance cost of the compressor unit is effectively reduced.

[0028] In one or more embodiments, the cylinder 1 is provided with a handle 14 on the side surface opposite to the opening 11, so that the cylinder 1 is conveniently rotated, and the locking nut 3 is further conveniently dismounted.

[0029] In one or more embodiments, the first axis of the first through hole 11 and the second axis of the second through hole 12 form a first axis line, and the first axis line is perpendicular to the axis of the cylinder 1.

[0030] In one or more embodiments, the side of the cylinder 1 is further provided with a third through hole 22 and a fourth through hole 23 on the opposite positions on both sides of the opening 11, and the axis of the third through hole 22 and the axis of the fourth through hole 23 form a second axis line perpendicular to the axis of the cylinder 1.

[0031] According to the utility model, the side of the cylinder 1 is further provided with a third through hole 22 and a fourth through hole 23 on the opposite positions on both sides of the opening 11, and the axis of the third through hole 22 and the axis of the fourth through hole 23 form a second axis line perpendicular to the axis of the cylinder 1. In the process of dismounting the locking nut 3, the two pairs of through holes can be alternately used, so that damage to the side hole of the locking nut 3 is further avoided, the service life of the locking nut 3 is improved, and the maintenance cost of the compressor unit is effectively reduced.

[0032] In one or more embodiments, the first axis line and the second axis line are 135°, so that the locking nut 3 can be dismounted in the most suitable position with force in the limited working space without being limited by the position of the side hole of the locking nut 3.

[0033] In one or more embodiments, the diameters of the first through hole 12, the second through hole 13, the third through hole 22 and the fourth through hole 23 are the same as the diameter of the side hole of the lock nut 3.

[0034] In one or more embodiments, the handle 14 is fixed to the side surface of the barrel 1 by welding.

[0035] In one or more embodiments, the fitting dismounting piece 4 is a cylindrical pin.

[0036] In one or more embodiments, the diameter of the fitting dismounting piece 4 is the same as the diameters of the first through hole 12, the second through hole 13, the third through hole 22, the fourth through hole 23 and the side hole of the lock nut 3.

[0037] In one or more embodiments, the height of the fitting dismounting piece 4 is greater than or equal to the sum of the thickness of the barrel 1 and the depth of the side hole of the lock nut 3.

[0038] Although the utility model has been described with reference to the preferred embodiments, various improvements can be made and equivalent parts can be substituted without departing from the scope of the utility model. In particular, the technical features mentioned in each embodiment can be combined in any way as long as there is no structural conflict. The utility model is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A lock nut dismounting device, characterized in that, The utility model relates to a kind of locking nuts, comprising: Fitting disassembling piece and the barrel with opening in side portion, the side portion of the barrel is respectively provided with first through hole and second through hole in the opposite position of the two sides of the opening, the first through hole, second through hole are aligned with side hole in the side portion of locking nut, two the fitting disassembling piece respectively passes through the first through hole and second through hole and enters the side hole aligned with both; The first axis line is formed by the line of the axis of the first through hole and the axis of the second through hole, and the first axis line is perpendicular to the axis of the barrel;The side portion of the barrel is also respectively provided with third through hole and fourth through hole in the opposite position of the two sides of the opening, and the second axis line is formed by the line of the axis of the third through hole and the axis of the fourth through hole, which is perpendicular to the axis of the barrel;The first axis line and the second axis line are 135 °.

2. The lock nut dismounting device according to claim 1, characterized in that The barrel is provided with a handle on the surface of the side portion opposite to the opening.

3. The lock nut dismounting device according to claim 2, characterized in that The handle and the side surface of the barrel are fixed by welding.

4. The lock nut dismounting device according to claim 1, characterized in that The diameters of the first through hole, second through hole, third through hole, fourth through hole and the side hole of the locking nut are the same.

5. The lock nut dismounting device according to claim 4, characterized in that The fitting disassembling piece is a cylindrical pin.

6. The lock nut dismounting device according to claim 5, characterized in that The diameter of the fitting disassembling piece is the same as the diameter of the first through hole.

7. The lock nut dismounting device according to claim 6, characterized in that The height of the fitting disassembling piece is greater than or equal to the sum of the thickness of the barrel and the depth of the side hole of the locking nut.

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