CN211740497U

CN211740497U - Piston pin leakage testing device

Info

Publication number: CN211740497U
Application number: CN202020533916.4U
Authority: CN
Inventors: 冉瑞志
Original assignee: Suzhou Kaihui Railway Electromechanical Co ltd
Current assignee: Suzhou Kaihui Railway Electromechanical Co ltd
Priority date: 2020-04-13
Filing date: 2020-04-13
Publication date: 2020-10-23
Anticipated expiration: 2030-04-13

Abstract

The utility model discloses a piston pin leakage test device, including backup pad and piston pin, the first rubber pad of one end fixedly connected with of backup pad, the equal fixedly connected with water injection pipe in middle part of first rubber pad and backup pad, the one end of backup pad and the one end activity laminating of piston pin are kept away from to first rubber pad, the fixed plate that is equipped with of one end that first rubber pad was kept away from to the piston pin, and the one end fixedly connected with second rubber pad of the corresponding piston pin of fixed plate. The utility model discloses a place the piston pin between first rubber pad and second rubber pad to with threaded rod and screw hole threaded connection, through the electric putter shrink, make backup pad and fixed plate drive first rubber pad and second rubber pad respectively and extrude the both ends of piston pin, thereby make the leakproofness at piston pin both ends better, can realize the work of installation piston pin, easy operation convenient to use.

Description

Piston pin leakage testing device

Technical Field

The utility model relates to a piston pin technical field specifically is a piston pin leakage test device.

Background

The wrist pin is a cylindrical pin mounted on the skirt of the piston. The middle part of the connecting rod passes through a small end hole of the connecting rod and is used for connecting the piston and the connecting rod, and the function of the connecting rod is to transmit the gas acting force borne by the piston to the connecting rod or to enable the small end of the connecting rod to drive the piston to move together. In order to reduce weight, piston pins are generally made of high-quality alloy steel and are hollow, and must be strictly leak tested during use.

However, in the prior art, the piston pin is inconvenient to install in actual use, so that the leakage test time is long.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a piston pin leakage test device to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: including backup pad and piston pin, the first rubber pad of one end fixedly connected with of backup pad, the equal fixedly connected with water injection pipe in middle part of first rubber pad and backup pad, the one end of backup pad and the one end activity laminating of piston pin are kept away from to first rubber pad, the fixed plate that is equipped with of one end that first rubber pad was kept away from to the piston pin, and the corresponding piston pin one end fixedly connected with second rubber pad of fixed plate, the one end that the fixed plate was kept away from to the second rubber pad is laminated with the one end activity of piston pin, the screw hole is seted up at the middle part of fixed plate, the inner wall threaded connection of screw hole has the threaded rod, the one end fixedly connected with electric putter of the corresponding backup pad position of threaded rod.

Preferably, the interior of the piston pin is in communication with the interior of the water injection tube.

Preferably, the number of the electric push rods is two, and the two electric push rods are symmetrically arranged at one end of the support plate corresponding to the position of the fixing plate by taking a horizontal axis of a midpoint of the support plate as a symmetry axis.

Preferably, one end of the supporting plate corresponding to the position of the fixing plate is fixedly connected with a positioning rod, a positioning hole is formed in the middle of the fixing plate corresponding to the position of the positioning rod, and the surface of the positioning rod is in sliding connection with the inner wall of the positioning hole.

Preferably, the surface of the positioning rod is slidably connected with a movable sleeve, the surface of the movable sleeve is slidably connected with a driving ring, the inner wall of the driving ring corresponding to the position of the movable sleeve is provided with a limiting groove, the inner wall of the limiting groove is slidably connected with a limiting head, and the limiting head is fixedly connected to the surface of the movable sleeve.

Preferably, a driving groove is formed in the middle of the inside of the driving ring, a positioning block is meshed with the inner wall of the driving groove, the positioning block is rotatably connected to the surface of the positioning rod through a bearing, the number of the positioning rods is four, and the four positioning rods are fixedly connected to one end of the supporting plate corresponding to the position of the piston pin in an annular mode.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the piston pin is placed between the first rubber pad and the second rubber pad, the threaded rod is in threaded connection with the threaded hole, and the electric push rod is contracted, so that the supporting plate and the fixing plate respectively drive the first rubber pad and the second rubber pad to extrude the two ends of the piston pin, the sealing performance of the two ends of the piston pin is better, the work of installing the piston pin can be realized, and the operation is simple and convenient;

2. the utility model discloses still fix a position the position of backup pad and fixed plate through locating lever cooperation locating hole simultaneously, and rotate the drive ring for the drive ring rotates along the surface of locating lever under the effect of movable sleeve and spacing head, and when the drive ring rotates, can drive the locating piece through the drive groove and use the locating lever to rotate as the pivot, and make and fix a position the piston pin through the locating piece.

Drawings

FIG. 1 is a front sectional view of the whole structure of a piston pin leakage testing device of the present invention;

FIG. 2 is an enlarged view of the structure at A in FIG. 1 of the leakage testing device for piston pins according to the present invention;

fig. 3 is a side view of the utility model discloses a piston pin leak test device fixed plate structure.

In the figure: 1. a support plate; 2. a piston pin; 3. a first rubber pad; 4. a water injection pipe; 5. an electric push rod; 6. a fixing plate; 7. a second rubber pad; 8. a threaded hole; 9. a threaded rod; 10. positioning a rod; 11. positioning holes; 12. a movable sleeve; 13. a drive ring; 14. a limiting groove; 15. a limiting head; 16. a drive slot; 17. and (5) positioning the blocks.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: including backup pad 1 and piston pin 2, the one end fixed mounting of backup pad 1 has first rubber pad 3, the equal fixed mounting in middle part of first rubber pad 3 and backup pad 1 has water injection pipe 4, the one end that backup pad 1 was kept away from to first rubber pad 3 is laminated with the one end activity of piston pin 2, the fixed plate 6 that is equipped with of one end that first rubber pad 3 was kept away from to piston pin 2, and the one end fixed mounting of the corresponding piston pin 2 of fixed plate 6 has second rubber pad 7, the one end that fixed plate 6 was kept away from to second rubber pad 7 is laminated with the one end activity of piston pin 2, threaded hole 8 has been seted up at the middle part of fixed plate 6, threaded hole 8's inner wall threaded connection has threaded rod 9, the one end fixed mounting of the corresponding backup pad 1 position of threaded rod 9.

The interior of the piston pin 2 communicates with the interior of the water injection pipe 4.

The number of the electric push rods 5 is two, and the two electric push rods 5 are symmetrically arranged at one end of the supporting plate 1 corresponding to the position of the fixing plate 6 by taking the horizontal axis of the midpoint of the supporting plate 1 as a symmetry axis.

A positioning rod 10 is fixedly mounted at one end of the supporting plate 1 corresponding to the position of the fixing plate 6, a positioning hole 11 is formed in the middle of the fixing plate 6 corresponding to the position of the positioning rod 10, and the surface of the positioning rod 10 is in sliding connection with the inner wall of the positioning hole 11.

The surface of the locating rod 10 is connected with a movable sleeve 12 in a sliding mode, the surface of the movable sleeve 12 is connected with a driving ring 13 in a sliding mode, a limiting groove 14 is formed in the inner wall of the driving ring 13 corresponding to the position of the movable sleeve 12, the inner wall of the limiting groove 14 is connected with a limiting head 15 in a sliding mode, and the limiting head 15 is fixedly installed on the surface of the movable sleeve 12.

Drive ring 13 inside middle part has been seted up drive groove 16, and the inner wall meshing of drive groove 16 has locating piece 17, locating piece 17 passes through the bearing and rotates the surface of connecting at locating lever 10, the quantity of locating lever 10 is four, and four locating levers 10 are the one end of annular fixed mounting in the corresponding gudgeon pin 2 position of backup pad 1, position backup pad 1 and fixed plate 6's position through locating lever 10 cooperation locating hole 11, and rotate drive ring 13, make drive ring 13 rotate along locating lever 10's surface under the effect of movable sleeve 12 and spacing head 15, and when drive ring 13 rotates, can drive locating piece 17 through drive groove 16 and use locating lever 10 to rotate as the pivot, and make and fix a position gudgeon pin 2 through locating piece 17.

The working principle is as follows: when using, the utility model discloses a place piston pin 2 between backup pad 1 and fixed plate 6, and seal piston pin 2's both ends through first rubber pad 3 and second rubber pad 7, with threaded rod 9 threaded connection at the inner wall of screw hole 8 this moment, and through the distance between 5 shrink regulation backup pad 1 of electric putter 1 and fixed plate 6, thereby make backup pad 1 and fixed plate 6 drive first rubber pad 3 and second rubber pad 7 respectively and extrude piston pin 2's both ends, thereby make the leakproofness at piston pin 2 both ends better, only need place piston pin 2 between first rubber pad 3 and second rubber pad 7, and with threaded rod 9 and 8 threaded connection of screw hole, can realize the work of installation piston pin 2 through 5 shrink of electric putter, easy operation convenient to use.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a piston pin leakage test device which characterized in that: including backup pad (1) and piston pin (2), the first rubber pad of one end fixedly connected with (3) of backup pad (1), the equal fixedly connected with water injection pipe (4) in middle part of first rubber pad (3) and backup pad (1), the one end that backup pad (1) was kept away from in first rubber pad (3) is laminated with the one end activity of piston pin (2), the fixed plate (6) that is equipped with in one end that first rubber pad (3) was kept away from in piston pin (2), and the one end fixedly connected with second rubber pad (7) of corresponding piston pin (2) of fixed plate (6) is kept away from in second rubber pad (7), screw hole (8) is seted up at the middle part of fixed plate (6), the inner wall threaded connection of screw hole (8) has threaded rod (9), the one end fixedly connected with electric putter (5) of corresponding backup pad (1) position of threaded rod (9) And one end of the electric push rod (5) close to the support plate (1) is rotatably connected to the middle part of the support plate (1) through a bearing.

2. The piston pin leakage test device according to claim 1, wherein: the interior of the piston pin (2) is communicated with the interior of the water injection pipe (4).

3. The piston pin leakage test device according to claim 1, wherein: the number of the electric push rods (5) is two, and the two electric push rods (5) are symmetrically arranged at one end of the support plate (1) corresponding to the position of the fixing plate (6) by taking the horizontal axis of the midpoint of the support plate (1) as a symmetry axis.

4. The piston pin leakage test device according to claim 1, wherein: one end of the supporting plate (1) corresponding to the position of the fixing plate (6) is fixedly connected with a positioning rod (10), the middle part of the fixing plate (6) corresponding to the position of the positioning rod (10) is provided with a positioning hole (11), and the surface of the positioning rod (10) is in sliding connection with the inner wall of the positioning hole (11).

5. The piston pin leakage test device according to claim 4, wherein: the positioning device is characterized in that a movable sleeve (12) is connected to the surface of the positioning rod (10) in a sliding mode, a driving ring (13) is connected to the surface of the movable sleeve (12) in a sliding mode, a limiting groove (14) is formed in the inner wall, corresponding to the position of the movable sleeve (12), of the driving ring (13), a limiting head (15) is connected to the inner wall of the limiting groove (14) in a sliding mode, and the limiting head (15) is fixedly connected to the surface of the movable sleeve (12).

6. The piston pin leakage test device according to claim 5, wherein: the middle part of the inside of the driving ring (13) is provided with a driving groove (16), the inner wall of the driving groove (16) is meshed with a positioning block (17), the positioning block (17) is rotatably connected to the surface of the positioning rod (10) through a bearing, the number of the positioning rods (10) is four, and the four positioning rods (10) are fixedly connected to one end of the supporting plate (1) corresponding to the position of the piston pin (2) in an annular mode.