Coupler abrasion inspection device

Abstract

A coupler abrasion checking device comprises a positioning cylinder, an adjusting screw, a pushing pin, a positioning head, a spring, a go end checking block and a not-go end checking block, a screw hole is formed in the middle of the top wall of the positioning cylinder, through holes corresponding to each other in position are formed in the side wall, close to the middle, of the positioning cylinder, and the positioning head is a cylinder with the inner side end face connected with a blocking wall. The two positioning heads are oppositely installed in two through holes in the side wall of the positioning cylinder, the outer sides of the two positioning heads are positioned in the two through holes of the positioning cylinder respectively and protrude out of the through holes, the springs are arranged on the surfaces of the positioning heads on the outer sides of the retaining walls of the two positioning heads and the inner sides of the through holes in a sleeving mode respectively, and the adjusting screw rod is assembled in a screw hole in the top wall of the positioning cylinder. The bottom end of the adjusting screw rod is connected with the upper end of the pushing pin, the lower end of the pushing pin is positioned between the inner sides of the retaining walls of the two positioning heads, the positions of the two positioning heads in the through hole of the positioning cylinder can be adjusted by rotating the adjusting screw rod, and the go-end inspection block and the no-go-end inspection block are connected to the two sides of the upper end of the positioning cylinder respectively. The positioning device is accurate in positioning and convenient to use.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of abrasion inspection devices, in particular to a kind of car coupler abrasion inspection device. BACKGROUND

[0002] In order to protect the train operation safety and the running stability, it is necessary to regularly check the car coupler abrasion, especially whether the car coupler hook body impact platform abrasion is limited is crucial. The car coupler hook body impact platform abrasion can reduce the buffering performance of the car coupler. When the train is impacted, it cannot effectively absorb and disperse energy, resulting in the impact force being directly transmitted to the vehicle and the goods, increasing the risk of damage to vehicle components and the probability of goods damage. In addition, the impact platform abrasion can cause the connection gap between the car couplers to increase, which can easily cause the train to sway and deviate during operation, affecting the stability of the car coupler connection.

[0003] Since the car coupler hook body impact platform outside is provided with a knuckle pin hole, the industry currently uses a pass-stop check block to check whether the car coupler hook body impact platform abrasion is limited, as shown in Figure 1 、 2 The pass-end check block 1 and the stop-end check block 4 are respectively connected on both sides of one end of the same cylinder 15. First, the cylinder 15 is positioned in the knuckle pin hole outside the car coupler hook body impact platform, and then the cylinder 15 is rotated, so that the pass-end check block 1 and the stop-end check block 4 rotate together with the cylinder. The pass-end check block 1 should be able to pass through the hook body impact platform, and the stop-end check block 4 should not be able to pass through (stopped) the hook body impact platform, which is qualified. Conversely, it is unqualified. Although this method of checking is simple, the car coupler hook body impact platform outside the knuckle pin hole will also be worn after a period of use. Since the car coupler hook body knuckle pin hole allows an abrasion of 3mm, the positioning will be unstable and shaking after the knuckle pin hole is worn, which will cause a large error in measurement, and the accuracy of checking the car coupler hook body impact platform abrasion will also be affected. SUMMARY

[0004] The utility model aims at the defects of the prior art, and provides a car coupler abrasion inspection device, which is accurate in positioning, easy to use, and can effectively improve the inspection efficiency.

[0005] The utility model discloses a technical scheme that the utility model discloses a kind of car coupler abrasion inspection devices for achieving the above-mentioned purpose, comprising positioning cylinder, adjusting screw rod, push pin, locating head, spring, through-end inspection block and end inspection block, positioning cylinder is the circular cylinder with top wall in upper end, the top wall middle part of positioning cylinder is equipped with screw hole, positioning cylinder is equipped with through-hole with position corresponding to each other by middle part side wall, locating head is the cylindrical body with baffle connected to inside end face, two locating heads are oppositely installed in the two through-holes of positioning cylinder side wall, two locating heads are respectively positioned in the two through-holes of positioning cylinder and protrude through-hole outside, spring is respectively sleeved in the locating head surface of two locating head baffle outside and through-hole inside, adjusting screw rod is assembled in the screw hole of positioning cylinder top wall, adjusting screw rod bottom end is connected with push pin upper end, push pin lower end is positioned between two locating head baffle insides, rotating adjusting screw rod can adjust the position of two locating heads in the through-hole of positioning cylinder, through-end inspection block and end inspection block are respectively connected on the both sides of positioning cylinder upper end.

[0006] Further technical scheme of the utility model is: the positioning cylinder is the half open cylinder body without bottom wall in bottom end.

[0007] Further technical scheme of the utility model is: the push pin includes lower pin body and upper pin body, lower pin body is located in bottom end, and left and right two sides surfaces are vertical flat surfaces, upper pin body is connected on lower pin body upper end, and upper pin body is the conical structure with left and right two sides surfaces being outwardly inclined, and lower pin body is clamped between two locating heads.

[0008] Further technical scheme of the utility model is: the through-end inspection block and end inspection block are respectively connected on the opposite two sides of positioning cylinder upper end.

[0009] The utility model discloses a kind of car coupler abrasion inspection devices with the following beneficial effects: by installing adjusting screw rod, push pin, locating head in positioning cylinder, rotating adjusting screw rod drives push pin to press two locating heads downwards, so that two locating heads are extruded and positioned in the hole wall of knuckle pin hole, realize that positioning cylinder is automatically centered and positioned, positioning is accurate, improve measurement accuracy and work efficiency.

[0010] The utility model discloses a kind of car coupler abrasion inspection devices with the following beneficial effects: by installing adjusting screw rod, push pin, locating head in positioning cylinder, rotating adjusting screw rod drives push pin to press two locating heads downwards, so that two locating heads are extruded and positioned in the hole wall of knuckle pin hole, realize that positioning cylinder is automatically centered and positioned, positioning is accurate, improve measurement accuracy and work efficiency. DRAWINGS

[0011] Figure 1 It is the structure diagram of prior art car coupler abrasion inspection device;

[0012] Figure 2 It is Figure 1 The top view of

[0013] Figure 3 It is the sectional view of the utility model discloses a kind of car coupler abrasion inspection devices (only cut open positioning cylinder);

[0014] Figure 4 is a kind of car coupler abrasion inspection device of the utility model overhead view;

[0015] Figure 5 It is the structure diagram of the car coupler abrasion inspection device of the utility model whether the impact platform abrasion of car coupler hook body reaches limit is detected;

[0016] Explanation of reference numerals:1-pass end inspection block,2-positioning cylinder,3-adjusting screw,4-stop end inspection block,5-thrust pin,6-through hole,7-spring,8-positioning head,9-block wall,10-lower pin body,11-upper pin body,12-screw hole,13-knuckle pin hole,14-car coupler,15-cylinder. DETAILED DESCRIPTION

[0017] As Figure 3 , Figure 4 indicated, the utility model discloses a kind of car coupler abrasion inspection devices, for checking whether the impact platform abrasion of car coupler hook body reaches limit.The utility model includes positioning cylinder 2, adjusting screw 3, thrust pin 5, positioning head 8, spring 7, pass end inspection block 1 and stop end inspection block 4.

[0018] As Figure 3 indicated, positioning cylinder 2 is the circular cylinder with top wall in upper end, while positioning cylinder 2 is also the half open cylinder with no bottom wall in bottom end, the outer diameter of positioning cylinder 2 is slightly smaller than knuckle pin hole 13 aperture diameter, so that positioning cylinder 2 is easily put into knuckle pin hole 13.Through hole 6 is arranged in the middle part of the top wall of positioning cylinder 2, and the middle part of positioning cylinder 2 is provided with the through hole 6 corresponding in position, and the center line of two through holes 6 is perpendicular to the central axis of positioning cylinder 2.

[0019] As Figure 3As shown, two positioning heads 8 are arranged in the embodiment, and the two positioning heads 8 are completely identical in structure. The positioning head 8 is a cylinder with a blocking wall 9 connected to the inner end face of the positioning head 8, and the cylinder of the positioning head 8 extends in the horizontal direction. The two positioning heads 8 are oppositely arranged in the two through holes 6 of the side wall of the positioning cylinder 2, and the outer sides of the two positioning heads 8 are respectively positioned in the two through holes 6 of the positioning cylinder 2 and protrude out of the through holes 6, and the inner sides of the two positioning heads 8 are respectively abutted against the push rod 5. The spring 7 is sleeved on the surface of the positioning head 8 on the outer side of the blocking wall 9 of the two positioning heads 8 and on the inner side of the through hole 6, and the spring 7 is kept in an elastically compressed state. The adjusting screw 3 is assembled in the screw hole 12 of the top wall of the positioning cylinder 2, the bottom end of the adjusting screw 3 is connected to the upper end of the push rod 5, and the lower end of the push rod 5 is positioned between the inner sides of the blocking walls 9 of the two positioning heads 8. In the embodiment, the push rod 5 comprises a lower pin body 10 and an upper pin body 11. The lower pin body 10 is located at the bottom end and the left and right side surfaces thereof are vertical flat surfaces. The upper pin body 11 is connected to the upper end of the lower pin body 10, and the left and right side surfaces of the upper pin body 11 are tapered structures inclined outward, that is, the upper pin body 11 is a structure with a thin bottom end and gradually increasing thickness upward, and the lower pin body 10 is clamped between the two positioning heads 8. Rotating the adjusting screw 3 can adjust the positions of the two positioning heads 8 in the through holes 6 of the positioning cylinder 2. Rotating the adjusting screw 3 upward can move the push rod 5 upward along with the adjusting screw 3, move the two positioning heads 8 inward in the through holes 6 of the positioning cylinder 2, and shorten the distance between the positioning heads 8 and the outer side of the through holes 6 of the positioning cylinder 2. Rotating the adjusting screw 3 downward can move the push rod 5 downward along with the adjusting screw 3, move the two positioning heads 8 outward in the through holes 6 of the positioning cylinder 2, and lengthen the distance between the positioning heads 8 and the outer side of the through holes 6 of the positioning cylinder 2.

[0020] As shown in Figure 3 , Figure 4 , the through-end inspection block 1 and the dead-end inspection block 4 are respectively connected to the two opposite sides of the upper end of the positioning cylinder 2. The horizontal distance D1 from the outer end of the through-end inspection block 1 to the central axis of the adjusting screw 3 and the horizontal distance D2 from the outer end of the dead-end inspection block 4 to the central axis of the adjusting screw 3 are set according to the impact platform width and the wear limit value of the coupler body, and the values of D1 and D2 are different for different types of couplers.

[0021] The utility model discloses a method for checking whether the wear of the impact platform of the coupler body reaches the limit, and the method comprises the following steps: Figure 5As shown, according to the following steps: 1, rotate the adjusting screw 3 to make the two positioning heads 8 retract inward, place the positioning cylinder 2 of the coupler wear inspection device into the knuckle pin hole 13 of the coupler 14, make the through-end inspection block 1 and the dead-end inspection block 4 respectively contact with the upper end surface of the knuckle pin hole 13 of the coupler 14, rotate the adjusting screw 3 clockwise to make the push pin 5 move downward, compress the spring 7, and then make the two positioning heads 8 contact with the knuckle pin hole 13; 2, rotate the through-end inspection block 1 to be able to pass through, and rotate the dead-end inspection block 4 to be able to stop for being qualified, rotate the dead-end inspection block 4, and the through-end inspection block 1 should be able to pass through for being qualified.

[0022] The above embodiments are only preferred embodiments of the present application, and the structure of the present application is not limited to the forms listed in the above embodiments. Any modification, equivalent replacement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A vehicle coupler wear checking device, characterised in that, The utility model provides a kind of positioner, including positioning cylinder (2), adjusting screw rod (3), push pin (5), positioning head (8), spring (7), through-end inspection block (1) and end inspection block (4), positioning cylinder (2) is the circular cylinder with top wall in upper end, the top wall middle part of positioning cylinder (2) is equipped with screw hole (12), positioning cylinder (2) is equipped with position mutually corresponding through-hole (6) by middle part side wall, positioning head (8) is the cylindrical body with the blocking wall (9) being connected to inside end face, two positioning heads (8) are installed in the two through-holes (6) of positioning cylinder (2) side wall oppositely, and the outside of two positioning heads (8) is positioned in the two through-holes (6) of positioning cylinder (2) respectively and protrudes through-hole (6), spring (7) is respectively sleeved in the surface of positioning head (8) outside blocking wall (9) and through-hole (6) inside positioning head (8), adjusting screw rod (3) is assembled in the screw hole (12) of positioning cylinder (2) top wall, adjusting screw rod (3) bottom end is connected with push pin (5) upper end, push pin (5) lower end is positioned between the inside of two positioning heads (8) blocking wall (9), the position of two positioning heads (8) in positioning cylinder (2) through-hole (6) can be adjusted by rotating adjusting screw rod (3), and through-end inspection block (1) and end inspection block (4) are connected on the two sides of positioning cylinder (2) upper end respectively.

2. A vehicle coupler wear check device as claimed in claim 1, characterised in that The positioning cylinder (2) is a semi-open cylinder with no bottom wall at the bottom end.

3. A vehicle coupler wear check device as claimed in claim 1, characterised in that The push pin (5) includes lower pin body (10) and upper pin body (11), the lower pin body (10) is located at the bottom end, and the left and right side surfaces are vertical flat surfaces, the upper pin body (11) is connected to the upper end of the lower pin body (10), the upper pin body (11) is a conical structure with the left and right side surfaces inclined outward, and the lower pin body (10) is clamped between the two positioning heads (8).

4. A vehicle coupler wear check device as claimed in claim 1, characterised in that The through-end inspection block (1) and the end inspection block (4) are connected on the opposite sides of the upper end of the positioning cylinder (2) respectively.

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