CN212265714U

CN212265714U - Special tool for ensuring concentricity during oil cylinder installation

Info

Publication number: CN212265714U
Application number: CN202020846379.9U
Authority: CN
Inventors: 李艳利; 田伟军; 陈奇
Original assignee: XiAn China Railway Engineering Equipment Co Ltd
Current assignee: XiAn China Railway Engineering Equipment Co Ltd
Priority date: 2020-05-20
Filing date: 2020-05-20
Publication date: 2021-01-01
Anticipated expiration: 2030-05-20

Abstract

The utility model belongs to the technical field of engineering mechanical equipment, and relates to a special tool for ensuring concentricity during oil cylinder installation, which comprises at least two cylinder barrel supports and at least one piston rod support, wherein each cylinder barrel support comprises a first base and a first clamping seat, and the first clamping seat is matched with the first base to realize clamping of a cylinder barrel in the radial direction; the piston rod support comprises a movable base and a second clamping seat, the second clamping seat is matched with the movable base to clamp the piston rod in the radial direction, one end of the piston rod is placed into the cylinder end cover, and the other end of the piston rod is placed on the movable base. When the oil cylinder is assembled, thrust towards the cylinder barrel is applied to the end part of the piston rod, the piston rod support and the piston rod push the cylinder barrel along the axial direction under the action of the thrust, the oil cylinder is assembled, the cylinder barrel and the piston rod can be installed quickly, efficiently and safely, and secondary economic loss caused by damage to other guide rings, sealing elements and the like is avoided.

Description

Special tool for ensuring concentricity during oil cylinder installation

Technical Field

The utility model belongs to the technical field of engineering mechanical equipment, a guarantee endocentric special frock when hydro-cylinder installation is related to.

Background

The oil cylinder is a hydraulic actuating element which converts hydraulic energy into mechanical energy and makes linear reciprocating motion (or swinging motion), and has simple structure and reliable work. When it is used to implement reciprocating motion, it can omit speed-reducing device, and has no transmission gap, and its motion is stable, so that it can be extensively used in various mechanical hydraulic systems.

In the process of repairing and installing the oil cylinder with a slightly large stroke, the reason that the cylinder barrel and the piston rod are not concentric when being installed due to overlarge gravity and inaccurate control of the hoisting height often occurs, the installation process is difficult, and meanwhile, guide rings and sealing parts on the piston head are damaged.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome above-mentioned prior art's shortcoming, provide a guarantee endocentric special frock during hydro-cylinder installation to swiftly, high-efficient, accomplish the installation of hydro-cylinder and piston rod safely, avoided damaging the secondary economic loss that other guide rings, sealing member etc. brought simultaneously.

The utility model aims at solving through the following technical scheme:

the special tool for ensuring concentricity during installation of the oil cylinder comprises at least two cylinder barrel supports and at least one piston rod support, wherein the cylinder barrel supports comprise a first base and a first clamping base, and the first clamping base is matched with the first base to clamp the cylinder barrel in the radial direction; the piston rod support comprises a movable base and a second clamping seat, the second clamping seat is matched with the movable base to clamp the piston rod in the radial direction, one end of the piston rod is placed into the cylinder end cover, and the other end of the piston rod is placed on the movable base.

Further, the first base is provided with a first sunken part for placing the cylinder barrel, the first clamping seat is provided with a second sunken part, a first clamping jaw is mounted on the inner surface of the second sunken part, a first adjusting screw is mounted on the outer surface of the first sunken part, and the first clamping jaw clamps the cylinder barrel along the radial direction by rotating the first adjusting screw.

Further, the upper surface of the first recess and the lower surface of the first claw are provided with rubber pads, so that the surface of a cylinder barrel can be prevented from being scratched when the oil cylinder is assembled.

Further, the cross section of the first concave part is of a U-shaped structure with a large top and a small bottom.

Further, the movable base is provided with a third depressed part for placing the piston rod, the second clamping seat is provided with a fourth depressed part, a second clamping jaw is mounted on the inner surface of the fourth depressed part, a second adjusting screw is mounted on the outer surface of the fourth depressed part, and the second clamping jaw clamps the piston rod along the radial direction by rotating the second adjusting screw.

Furthermore, the upper surface of the third recess and the lower surface of the second jaw are provided with rubber pads, so that the surface of the piston rod can be prevented from being scratched when the oil cylinder is assembled.

Furthermore, the cross-section of the third depressed part is of a U-shaped structure with a large upper part and a small lower part, and the included angle of the two sides of the U-shaped structure is smaller than that of the two sides of the U-shaped structure in the first depressed part, so that the piston rod and the cylinder barrel are at the same horizontal height as far as possible when concentric.

Further, the bottom of the movable base is provided with a roller which is convenient to move, when the oil cylinder is assembled, thrust towards the cylinder barrel is applied to the end part of the piston rod, and the piston rod support and the piston rod push the cylinder barrel along the axial direction under the action of the thrust, so that the oil cylinder is assembled.

Further, the movable base is further provided with a scale used for measuring the distance between the outer wall of the piston rod and the inner wall of the cylinder barrel, and when the movable base is assembled, the numerical value measured by the scale is compared with the assembling requirement of the oil cylinder, so that the concentric installation of the cylinder barrel and the piston rod is ensured.

Further, the bottom of the third sunken part is provided with an adjusting gasket for finely adjusting the height of the piston rod, so that the piston rod and the cylinder barrel are at the same horizontal height as much as possible when concentric.

Furthermore, the initiating terminal of scale and the upper surface parallel and level of removing the base, the operation personnel of being convenient for measure.

Compared with the prior art, the utility model provides a technical scheme includes following beneficial effect: this frock includes cylinder support and piston rod support, cooperate through first chucking seat and first base and realize the chucking of cylinder in radial direction, cooperate through second chucking seat and removal base and realize the chucking of piston rod in radial direction, when carrying out the assembly of hydro-cylinder, exert the thrust towards the cylinder at piston rod tip, piston rod support and piston rod impel the cylinder along the axial under the effect of thrust, accomplish the assembly of hydro-cylinder, can be swift, high-efficient, accomplish the installation of cylinder and piston rod safely, other guide rings have been avoided damaging simultaneously, the secondary economic loss that brings such as sealing member.

On the other hand, when the cylinder barrel is placed in the first sunken part of the first base, the first clamping jaw arranged on the inner surface of the second sunken part and the first adjusting screw arranged on the outer surface are utilized to enable the first clamping jaw to clamp the cylinder barrel along the radial direction by rotating the first adjusting screw; when the piston rod is placed in the third depressed part of the movable base, the second clamping jaw arranged on the inner surface of the fourth depressed part and the second adjusting screw arranged on the outer surface are combined, and the piston rod is clamped by the second clamping jaw along the radial direction by rotating the second adjusting screw.

In another aspect, the rubber pads arranged on the upper surface of the first sunken part and the lower surface of the first claw can prevent the surface of the cylinder barrel from being scratched when the oil cylinder is assembled; the rubber pads arranged on the upper surface of the second concave part and the lower surface of the second claw can prevent the surface of the piston rod from being scratched when the oil cylinder is assembled.

Moreover, the roller which is convenient to move is installed at the bottom of the movable base, when the oil cylinder is assembled, the thrust towards the cylinder barrel is applied to the end part of the piston rod, the piston rod support and the piston rod push the cylinder barrel along the axial direction under the action of the thrust, and the oil cylinder can be assembled quickly and efficiently.

And finally, a scale is arranged on the movable base and used for measuring the distance between the outer wall of the piston rod and the inner wall of the cylinder barrel, and the numerical value measured by the scale is compared with the oil cylinder assembly requirement so as to ensure that the cylinder barrel and the piston rod are concentric when being installed.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description, serve to explain the principles of the invention.

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive labor.

FIG. 1 is a diagram illustrating a state of use of a special tool for ensuring concentricity during installation of an oil cylinder;

fig. 2 is a schematic structural view of the cylinder support provided by the present invention;

fig. 3 is a schematic structural diagram of the piston rod support according to the present invention.

Wherein: 1. a cylinder barrel support; 2. a piston rod support; 3. a first base; 4. a first clamping seat; 5. a cylinder barrel; 6. moving the base; 7. a second clamping seat; 8. a piston rod; 9. a first recess; 10. a second recess; 11. a first jaw; 12. a first adjusting screw; 13. a third recessed portion; 14. a fourth recess; 15. a second jaw; 16. a second adjusting screw; 17. a roller; 18. a scale; 19. and adjusting the gasket.

Detailed Description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Rather, they are merely examples of apparatus consistent with certain aspects of the invention, as detailed in the following claims.

In order to make those skilled in the art better understand the technical solution of the present invention, the present invention will be further described in detail with reference to the accompanying drawings and the embodiments.

Referring to fig. 1-3, the utility model provides a special tool for ensuring concentricity during cylinder installation, which comprises at least two cylinder tube supports 1 and at least one piston rod support 2, wherein the cylinder tube support 1 comprises a first base 3 and a first clamping seat 4, and the first clamping seat 4 is matched with the first base 3 to clamp a cylinder tube 5 in the radial direction; the piston rod support 2 comprises a movable base 6 and a second clamping seat 7, the second clamping seat 7 is matched with the movable base 6 to clamp the piston rod 8 in the radial direction, one end of the piston rod 8 is placed into the cylinder end cover, and the other end of the piston rod is placed on the movable base 6.

Further, the first base 3 is provided with a first recess 9 for placing the cylinder 5, the first clamping seat 4 is provided with a second recess 10, the inner surface of the second recess 10 is provided with a first clamping jaw 11, the outer surface of the second recess 10 is provided with a first adjusting screw 12, and the first clamping jaw 11 is clamped on the cylinder 5 along the radial direction by rotating the first adjusting screw 12.

Further, the upper surface of the first recess 9 and the lower surface of the first claw 11 are provided with rubber pads, so that the surface of the cylinder barrel can be prevented from being scratched when the oil cylinder is assembled.

Further, the cross section of the first recess 9 is formed in a U-shaped structure having a large top and a small bottom.

Further, the moving base 6 is provided with a third recess 13 for placing the piston rod 8, the second clamping base 7 is provided with a fourth recess 14, a second jaw 15 is mounted on the inner surface of the fourth recess 14, a second adjusting screw 16 is mounted on the outer surface of the fourth recess 14, and the second jaw 15 clamps the piston rod 8 in the radial direction by rotating the second adjusting screw 16.

Further, the upper surface of the third recess 13 and the lower surface of the second jaw 15 are provided with rubber pads, which can prevent the surface of the piston rod from being scratched when the cylinder is assembled.

Further, the cross-section of the third depressed part 13 is a U-shaped structure with a large top and a small bottom, and the included angle between two sides of the U-shaped structure is smaller than that between two sides of the U-shaped structure in the first depressed part 9, so that the piston rod 8 and the cylinder barrel 5 are at the same horizontal height as much as possible when concentric.

Further, the bottom of the movable base 6 is provided with a roller 17 which is convenient to move, when the oil cylinder is assembled, thrust towards the cylinder barrel 5 is applied to the end of the piston rod 8, and the piston rod support 2 and the piston rod 8 push the cylinder barrel 5 in the axial direction under the action of the thrust, so that the oil cylinder is assembled.

Further, the movable base 6 is also provided with a scale 18 for measuring the distance between the outer wall of the piston rod and the inner wall of the cylinder barrel, and when the movable base is assembled, the numerical value measured by the scale 18 is compared with the assembling requirement of the oil cylinder, so that the cylinder barrel 5 and the piston rod 8 are ensured to be concentrically installed.

Further, the bottom of the third recess 13 is provided with an adjusting gasket 19 for fine adjustment of the height of the piston rod 8, so as to ensure that the piston rod 8 and the cylinder 5 are at the same level as much as possible when concentric.

Further, the starting end of the scale 18 is flush with the upper surface of the movable base 6, so that the measurement of the operator is facilitated.

To sum up, the utility model provides a guarantee endocentric special frock during installation of this kind of hydro-cylinder selects two hydro-cylinder supports 1, 1 piston rod support 2, and the assembly requirement of hydro-cylinder is: the distance of piston rod outer wall and cylinder inner wall is 35mm, and when using this frock to carry out hydro-cylinder assembly, specific assembling process is as follows: firstly, placing and clamping a cylinder barrel 5 on first bases 3 of two oil cylinder supports 1, vertically rotating first adjusting screws 12 arranged on first clamping seats 4 of the oil cylinder supports 1, and clamping the outer wall of the cylinder barrel 5 along the radial direction by using first clamping claws 11, wherein rubber pads for preventing the surface of the cylinder barrel 5 from being scratched are arranged on the upper surface of the first base 3 and the lower surface of the first clamping claws 11; secondly, the end where the piston head of the piston rod 8 is located is lapped and placed into the cylinder cover end of the cylinder barrel 5, the tail part of the piston rod 8 is placed on the movable base 6 of the piston rod support 2, the piston rod 8 is clamped by downwards rotating a second adjusting screw 16 of a second clamping seat 7 on the upper part of the piston rod support 2, the height of the piston rod 8 can be finely adjusted by changing the number of adjusting gaskets 19 arranged at the bottom of a third sunken part 13, and the piston rod 8 and the cylinder barrel 5 are ensured to be at the same horizontal height as far as possible when concentric; comparing the value measured by the scale 18 with the oil cylinder assembly requirement (the distance between the outer wall of the piston rod 8 and the inner wall of the cylinder barrel 5 is 35mm) to ensure that the cylinder barrel 5 and the piston rod 8 are concentrically arranged, and applying thrust to the end part of the piston rod 8 along the direction F shown in figure 3; and fourthly, the piston rod support 2 and the piston rod 8 can push the cylinder barrel 5 along the axial direction along with the F thrust, and the assembly of the oil cylinder is completed. This frock can be swiftly, high-efficient, accomplish the installation of cylinder 5 and piston rod 8 safely, avoided simultaneously because of damaging the secondary economic loss that other guide rings, sealed etc. brought.

The above description is only exemplary of the invention, and is intended to enable those skilled in the art to understand and implement the invention. The general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention.

It is to be understood that the present invention is not limited to what has been described above, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present invention is limited only by the appended claims.

Claims

1. A special tool for ensuring concentricity during oil cylinder installation is characterized by comprising at least two cylinder barrel supports (1) and at least one piston rod support (2), wherein the cylinder barrel supports (1) comprise a first base (3) and a first clamping base (4), and the first clamping base (4) is matched with the first base (3) to clamp a cylinder barrel (5) in the radial direction; the piston rod support (2) comprises a movable base (6) and a second clamping seat (7), the second clamping seat (7) is matched with the movable base (6) to clamp the piston rod (8) in the radial direction, one end of the piston rod (8) is placed into the cylinder end cover, and the other end of the piston rod is placed on the movable base (6).

2. The special tool for ensuring concentricity during oil cylinder installation according to claim 1, wherein the first base (3) is provided with a first recess (9) for placing the cylinder barrel (5), the first clamping seat (4) is provided with a second recess (10), the inner surface of the second recess (10) is provided with a first clamping jaw (11), the outer surface of the second recess (10) is provided with a first adjusting screw (12), and the first clamping jaw (11) is clamped on the cylinder barrel (5) along the radial direction by rotating the first adjusting screw (12).

3. The special tool for ensuring concentricity during oil cylinder installation according to claim 2, wherein rubber pads are arranged on the upper surface of the first recess (9) and the lower surface of the first clamping jaw (11).

4. The special tool for ensuring concentricity during oil cylinder installation according to claim 2, wherein the cross section of the first concave part (9) is of a U-shaped structure with a large top and a small bottom.

5. The special tool for ensuring concentricity during oil cylinder installation according to claim 1, wherein the moving base (6) is provided with a third recess (13) for placing the piston rod (8), the second clamping seat (7) is provided with a fourth recess (14), a second clamping jaw (15) is installed on the inner surface of the fourth recess (14), a second adjusting screw (16) is installed on the outer surface of the fourth recess (14), and the second clamping jaw (15) clamps the piston rod (8) along the radial direction by rotating the second adjusting screw (16).

6. The special tool for ensuring concentricity during oil cylinder installation according to claim 5, wherein rubber pads are arranged on the upper surface of the third recess (13) and the lower surface of the second jaw (15).

7. The special tool for ensuring concentricity during oil cylinder installation according to claim 5, wherein the cross section of the third recess (13) is of a U-shaped structure with a large top and a small bottom.

8. The special tool for ensuring concentricity during oil cylinder installation according to claim 5, wherein the bottom of the movable base (6) is provided with a roller (17) convenient to move.

9. The special tool for ensuring concentricity during oil cylinder installation according to claim 5, wherein the moving base (6) is further provided with a scale (18) for measuring the distance between the outer wall of the piston rod and the inner wall of the cylinder barrel.

10. The special tool for ensuring concentricity during oil cylinder installation according to claim 5, wherein an adjusting gasket (19) is arranged at the bottom of the third concave part (13).