A rotary template capable of detecting the locking position limit surface of the automatic coupler hook body

Abstract

The present invention belongs to the technical field of automatic coupler hook body detection devices, and specifically relates to a rotating template that can detect the limit surface of the locking position of the automatic coupler hook body. The technical scheme is: a rotating template that can detect the limit surface of the locking position of the automatic coupler hook body, including a positioning shaft, two circular plates are sleeved on the positioning shaft, and a template body is connected between the two circular plates through angle irons, and the template body is respectively connected to an upper impact rotating body, a lower impact rotating body, an upper traction rotating body and a lower traction rotating body, and the upper impact rotating body, the lower impact rotating body, the upper traction rotating body and the lower traction rotating body are respectively connected to the template body. The sides of the upper impact rotating body, the lower impact rotating body, the upper traction rotating body and the lower traction rotating body are aligned with the edge of the template body; the center line of the template body in the top view direction passes through the center of the circular plate. The present invention provides a rotating template that can detect the limit surface of the locking position of the automatic coupler hook body.

Description

Technical Field

[0001] The invention belongs to the technical field of automatic coupler hook body detection devices, and in particular relates to a rotary template capable of detecting a locking position limit surface of an automatic coupler hook body. Background Art

[0002] At present, all the railway freight car couplers of the national railway are automatic couplers. The hook tongue and other parts are assembled in the hook body with the required structure to form a coupler. The three-state function of the coupler is a major performance requirement of the coupler. The three-state function of the coupler includes fully open, locked, and unlocked. The locked position is when the hook tongue rotates counterclockwise to the fully closed state, and the impact shoulder of the hook tongue completely enters the impact platform of the hook body. At this time, the hook tongue rotation limit surface contacts the hook body locking position limit surface, so that the hook tongue cannot continue to rotate counterclockwise. Fig.12 As shown, the center line of the template body of the traditional hook body rotation template is h away from the center line of the holes in the upper and lower circular plates, and is behind the center line, while the hook body limit surface is 3mm to 6mm in front of the center line of the holes in the upper and lower circular plates. That is to say, the traditional hook body rotation template cannot detect the hook body limit surface and the space within 6mm from it. Summary of the invention

[0003] In order to solve the above problems existing in the prior art, the object of the present invention is to provide a rotary template which can detect the limit surface of the locking position of the hook body of an automatic coupler.

[0004] The technical solution adopted by the present invention is:

[0005] A rotary template for detecting the locking position limit surface of an automatic coupler hook body comprises a positioning shaft, two circular plates are sleeved on the positioning shaft, a template body is connected between the two circular plates via angle irons, an upper impact rotary body, a lower impact rotary body, an upper traction rotary body and a lower traction rotary body are respectively connected to the template body, and one side of the upper impact rotary body, the lower impact rotary body, the upper traction rotary body and the lower traction rotary body respectively connected to the template body are all aligned with the edge of the template body; the center line of the template body in the top view direction passes through the center of the circular plate.

[0006] When the positioning shaft is inserted into the hook body's axial hole, the center of the hook body's axial hole coincides with the center of the circular plate. Since the center line of the sample body in the top view passes through the center of the circular plate, and the hook body's limiting surface is 3 to 6 mm in front of the center of the hook body's axial hole, half of the sample body's thickness can just make up for the gap between the hook body's limiting surface and the hook body's axial hole's center line, ensuring that the sample body can contact the hook body's limiting surface during detection, and accurate detection of the hook body's limiting surface is achieved.

[0007] As a preferred embodiment of the present invention, the center of the outer edge of the cross section of the upper impact rotor and the lower impact rotor is located behind the center of the circular plate. The center of the impact arc surface of the hook body is eccentrically backward by a certain distance relative to the center line of the hook body shaft hole, forming a space that is larger at the back and smaller at the front; accordingly, the shape of the impact shoulder of the hook tongue is the same as the impact arc surface of the hook body, forming a shape that is larger at the back and smaller at the front. When the hook tongue is rotated, the front ends of the impact shoulders are respectively inserted from the rear sides of the corresponding impact spaces, which facilitates accurate insertion. In order to simulate the shape of the hook tongue, the center of the outer edge of the cross section of the upper impact rotor and the lower impact rotor of the present invention is located behind the center of the circular plate, forming a shape that is larger at the back and smaller at the front, which facilitates the smooth insertion of the upper impact rotor and the lower impact rotor into the impact space of the hook body during detection.

[0008] As a preferred embodiment of the present invention, the inner center of the cross section of the upper traction rotating body and the lower traction rotating body is located in front of the center of the circular plate. The center of the traction arc surface of the hook body is eccentrically forward by a certain distance relative to the center line of the hook body shaft hole, forming a shape that is smaller at the back and larger at the front; accordingly, the shape of the traction flange of the hook tongue is the same as the impact arc surface of the hook body, forming a space that is smaller at the back and larger at the front. When the hook tongue is rotated, the traction flange of the hook tongue can bypass the hook body traction platform, so that the present invention can rotate counterclockwise smoothly to avoid interference. In order to simulate the shape of the hook tongue, the inner center of the cross section of the upper traction rotating body and the lower traction rotating body of the present invention is located in front of the center of the circular plate, forming a space that is smaller at the back and larger at the front, ensuring that the upper traction rotating body and the lower traction rotating body can bypass the hook body traction platform.

[0009] As a preferred embodiment of the present invention, the slope ratios of the inner and outer sides of the upper impact rotor and the inner and outer sides of the lower impact rotor are both 1:12, simulating the shape of the hook tongue, making it convenient for the present invention to detect the slopes of the inner and outer sides of the impact space of the hook body.

[0010] As a preferred solution of the present invention, the upper impact rotator and the lower impact rotator are both provided with countersunk holes, and the upper impact rotator and the lower impact rotator are respectively connected to the template body by screws at the countersunk holes. By tightening the screws into the countersunk holes, the screws are prevented from protruding out of the template body, so that when the present invention is rotated, the template body can be rotated to a position close to the locking position limit surface of the hook body, ensuring that the locking position limit surface can be accurately detected.

[0011] As a preferred solution of the present invention, a handle is connected between the two circular plates through an angle steel. When the present invention is rotated, the two circular plates and the template body are rotated accordingly by holding the handle, and the rotation of the template body can be more stable by operating the handle.

[0012] As a preferred embodiment of the present invention, the radius of the horizontal projection of the outer corner of the upper impact rotator and the outer corner of the lower impact rotator connected to the template body is 8 to 15 mm, and the radius of the horizontal projection of the inner corner of the upper impact rotator and the inner corner of the lower impact rotator connected to the template body is 8 to 15 mm. The present invention can also simulate the shape of the inner corner and the outer corner of the hook tongue impact shoulder, ensuring that the corners of the impact space of the hook body can also be accurately detected.

[0013] As a preferred embodiment of the present invention, the radius of the longitudinal projection of the template body connecting the upper impact rotor and the lower impact rotor is 15 to 20 mm.

[0014] As a preferred embodiment of the present invention, the height of the arc segment of the template body connecting the upper impact rotor and the lower impact rotor is 55 to 75 mm.

[0015] As a preferred embodiment of the present invention, the thickness of the template body is 6 to 9 mm.

[0016] The beneficial effects of the present invention are:

[0017] After the positioning shaft of the present invention is inserted into the axial hole of the hook body, the center of the axial hole of the hook body coincides with the center of the circular plate. Since the center line of the top view of the template body passes through the center of the circular plate, and the hook body limiting surface is 3 to 6 mm in front of the center of the hook body axial hole, half of the thickness of the template body can just make up for the distance between the hook body limiting surface and the center line of the hook body axial hole, ensuring that the template body can contact the hook body limiting surface during detection, and accurate detection of the hook body limiting surface is achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a front view of the present invention;

[0019] Figure 2 is a top view of the present invention;

[0020] Figure 3 It is a front view of the present invention after being assembled with the hook body;

[0021] Figure 4 is a top view of the present invention after being assembled with the hook body;

[0022] Figure 5 It is the front view of the hook body;

[0023] Figure 6 It is a top view of the hook body;

[0024] Figure 7 It is a top view of the hook tongue;

[0025] Figure 8 It is the assembly diagram of the hook body and hook tongue;

[0026] Fig. 9 It is the main view of the template body;

[0027] Fig.10 It is a top view of the main body of the sample;

[0028] Fig.11 It is the right view of the main body of the sample;

[0029] Fig.12 This is a top view of the existing rotary template.

[0030] In the figure, 1-positioning shaft; 2-circular plate; 3-sample body; 4-handle; 5-hook body; 6-hook tongue; 31-upper impact rotary body; 32-lower impact rotary body; 33-upper traction rotary body; 34-lower traction rotary body; 35-countersunk hole; 51-upper impact platform; 52-lower impact platform; 53-upper traction platform; 54-lower traction platform; 55-locking position limit surface; 61-rotation limit surface; 62-traction flange; 63-impact shoulder. DETAILED DESCRIPTION

[0031] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0032] like Figure 5 and Figure 6 As shown, the hook body 5 is provided with an upper impact platform 51, a lower impact platform 52, an upper traction platform 53 and a lower traction platform 54, respectively, and a locking position limiting surface 55 is provided in the impact space of the hook body 5. Figure 7 As shown, the hook tongue 6 is provided with a rotation limit surface 61, a traction flange 62 and an impact shoulder 63. Figure 8 As shown, when the hook body 5 and the hook tongue 6 are assembled, the axial hole of the hook body 5 and the axial hole of the hook tongue 6 are overlapped and connected by a rotating shaft. When the hook tongue 6 rotates to the locking position, the impact shoulder 63 of the hook tongue 6 is inserted into the impact space of the hook body 5, the traction flange 62 of the hook tongue 6 is inserted into the traction space of the hook body 5, and the rotation limit surface 61 of the hook tongue 6 contacts the locking position limit surface 55 of the hook body 5 and is limited.

[0033] like Figure 1 to Figure 4As shown, the rotary template of the present embodiment which can detect the locking position limit surface of the automatic coupler hook body comprises a positioning shaft 1, on which two circular plates 2 are sleeved, and a template body 3 is connected between the two circular plates 2 by angle irons, and an upper impact rotating body 31, a lower impact rotating body 32, an upper traction rotating body 33 and a lower traction rotating body 34 are respectively connected to the template body 3, and one side of the upper impact rotating body 31, the lower impact rotating body 32, the upper traction rotating body 33 and the lower traction rotating body 34 respectively connected to the template body 3 are all aligned with the edge of the template body 3; the center line of the template body 3 in the top view direction passes through the center of the circular plate 2.

[0034] When the positioning shaft 1 is inserted into the axial hole of the hook body 5, the center of the axial hole of the hook body 5 coincides with the center of the circular plate 2. Since the center line of the top view of the template body 3 passes through the center of the circular plate 2, and the limit surface of the hook body 5 is 3 to 6 mm in front of the center of the axial hole of the hook body 5, half of the thickness of the template body 3 can just make up for the distance between the limit surface of the hook body 5 and the center line of the axial hole of the hook body 5, ensuring that the template body 3 can contact the limit surface of the hook body 5 during detection, and realize accurate detection of the limit surface of the hook body 5.

[0035] In order to facilitate the smooth insertion of the upper impact rotator 31 and the lower impact rotator 32 into the impact space of the hook body 5, the outer edge of the cross section of the upper impact rotator 31 and the lower impact rotator 32 is located behind the center of the circular plate 2. The center of the impact arc surface of the hook body 5 is eccentrically located at a distance m from the center line of the axial hole of the hook body 5, forming a space that is larger at the back and smaller at the front; accordingly, the shape of the impact shoulder 63 of the hook tongue 6 is the same as the impact arc surface of the hook body 5, forming a shape that is larger at the back and smaller at the front. When the hook tongue 6 is rotated, the front end of the impact shoulder 63 is inserted from the rear side of the corresponding impact space, respectively, to facilitate accurate insertion. In order to simulate the shape of the hook tongue 6, the outer edge of the cross section of the upper impact rotator 31 and the lower impact rotator 32 of the present invention is located behind the center of the circular plate 2, and the distance is m, forming a shape that is larger at the back and smaller at the front, which facilitates the smooth insertion of the upper impact rotator 31 and the lower impact rotator 32 into the impact space of the hook body 5 during detection.

[0036] In order to enable the upper traction rotating body 33 and the lower traction rotating body 34 to bypass the traction platform of the hook body 5, the inner center of the cross section of the upper traction rotating body 33 and the lower traction rotating body 34 is located in front of the center of the circular plate 2. The center of the traction arc surface of the hook body 5 is eccentrically forward by a distance n relative to the center line of the axial hole of the hook body 5, forming a shape that is small at the back and large at the front; accordingly, the shape of the traction flange 62 of the hook tongue 6 is the same as the impact arc surface of the hook body 5, forming a space that is small at the back and large at the front. When the hook tongue 6 is rotated, the traction flange 62 of the hook tongue 6 can bypass the traction platform of the hook body 5, so that the present invention can rotate counterclockwise smoothly to avoid interference. In order to simulate the shape of the hook tongue 6, the inner center of the cross section of the upper traction rotating body 33 and the lower traction rotating body 34 of the present invention is located in front of the center of the circular plate 2, and the distance is n, forming a space that is small at the back and large at the front, ensuring that the upper traction rotating body 33 and the lower traction rotating body 34 can bypass the traction platform of the hook body 5.

[0037] Furthermore, the slope ratios of the inner and outer sides of the upper impact rotator 31 and the inner and outer sides of the lower impact rotator 32 are both 1:12, simulating the shape of the hook tongue 6, making it convenient for the present invention to detect the slopes of the inner and outer sides of the impact space of the hook body 5.

[0038] In order to avoid interference between the screws of the upper impact rotator 31 and the lower impact rotator 32 and the template body 3, the upper impact rotator 31 and the lower impact rotator 32 are connected to the template body 3 by screws at the countersunk holes 35. By tightening the screws into the countersunk holes 35, the screws are prevented from protruding from the template body 3, so that when the present invention is rotated, the template body 3 can be rotated to a position close to the locking position limit surface 55 of the hook body 5, ensuring that the locking position limit surface 55 can be accurately detected.

[0039] Furthermore, a handle 4 is connected between the two circular plates 2 through an angle steel. When the present invention is rotated, the handle 4 is held and rotated, and the two circular plates 2 and the template body 3 rotate accordingly. The handle 4 is used to operate the template body 3 so that the rotation is more stable.

[0040] Specifically, Figures 9 to 11As shown, the radius R2 of the horizontal projection of the outer corner of the upper impact rotator 31 and the outer corner of the lower impact rotator 32 of the template body 3 is 8 to 15 mm, and the radius R1 of the horizontal projection of the inner corner of the upper impact rotator 31 and the inner corner of the lower impact rotator 32 of the template body 3 is 8 to 15 mm. The present invention can also simulate the shape of the inner corner and the outer corner of the impact shoulder 63 of the hook tongue 6 to ensure that the corner of the impact space of the hook body 5 can also be accurately detected. The radius R3 of the longitudinal projection of the template body 3 connecting the upper impact rotator 31 and the lower impact rotator 32 is 15 to 20 mm. The height H of the arc section of the template body 3 connecting the upper impact rotator 31 and the lower impact rotator 32 is 55 to 75 mm. The thickness of the template body 3 is 6 to 9 mm.

[0041] Working principle:

[0042] The upper impact rotator 31, the lower impact rotator 32, the upper traction rotator 33 and the lower traction rotator 34 are respectively connected to the template body 3 by screws, and the upper and lower ends of the template body 3 are respectively connected between the two circular plates 2 by angle irons. The angle irons are respectively connected to the template body 3 and the circular plates 2 by bolts. The two circular plates 2 connected to the template body 3 are placed inside the hook body 5, and the center of the circular plate 2 is aligned with the center of the axial hole of the hook body 5. Insert the positioning shaft 1 into the axial hole of the hook body 5, then the circular plate 2 is installed, and the center of the circular plate 2 is aligned with the center of the axial hole of the hook body 5. During the inspection, turn the handle 4, and the template body 3, the upper impact rotator 31, the lower impact rotator 32, the upper traction rotator 33 and the lower traction rotator 34 rotate accordingly. After being rotated to the right position, the inner side of the template body 3 reaches the position of the locking position limit surface 55 of the hook body 5, the upper impact swivel 31 and the lower impact swivel 32 are respectively inserted into the corresponding impact space of the hook body 5, and the upper traction swivel 33 and the lower traction swivel 34 are engaged in the traction space of the hook body 5. Therefore, the present invention can simulate the shape of the hook tongue 6 as much as possible, ensure that all positions of the hook body 5 can be detected, and ensure the accuracy of the detection.

[0043] The present invention is not limited to the above-mentioned optional implementation modes. Anyone can derive other various forms of products under the inspiration of the present invention. However, no matter what changes are made in the shape or structure, all technical solutions that fall within the scope defined by the claims of the present invention fall within the protection scope of the present invention.

Claims

1. A rotary template capable of detecting the limit surface of the locking position of an automatic coupler, characterized in that: The invention comprises a positioning shaft (1), two circular plates (2) are sleeved on the positioning shaft (1), a template body (3) is connected between the two circular plates (2) via angle irons, an upper impact rotating body (31), a lower impact rotating body (32), an upper traction rotating body (33) and a lower traction rotating body (34) are respectively connected to the template body (3), and the sides of the upper impact rotating body (31), the lower impact rotating body (32), the upper traction rotating body (33) and the lower traction rotating body (34) respectively connected to the template body (3) are aligned with the edge of the template body (3); the center line of the template body (3) in the top view direction passes through the center of the circular plates (2); the limiting surface of the hook body (5) is 3 to 6 mm in front of the center of the axial hole of the hook body (5), and half of the thickness of the template body (3) makes up for the distance between the limiting surface of the hook body (5) and the center line of the axial hole of the hook body (5).

2. A rotary template for detecting the limit surface of the locking position of the automatic coupler according to claim 1, characterized in that: The centers of the outer edges of the cross sections of the upper impact rotating body (31) and the lower impact rotating body (32) are located behind the center of the circular plate (2).

3. A rotary template for detecting the limit surface of the locking position of the automatic coupler according to claim 1, characterized in that: The inner edges of the cross sections of the upper traction rotating body (33) and the lower traction rotating body (34) are centered in front of the center of the circular plate (2).

4. A rotary template for detecting the limit surface of the locking position of the automatic coupler according to claim 1, characterized in that: The slope ratios of the inner side and outer side of the upper impact rotating body (31) and the inner side and outer side of the lower impact rotating body (32) are both 1:

12.

5. The rotary template for detecting the limit surface of the locking position of the automatic coupler according to claim 1 is characterized in that: The upper impact rotating body (31) and the lower impact rotating body (32) are both provided with countersunk holes (35), and the upper impact rotating body (31) and the lower impact rotating body (32) are respectively connected to the template body (3) at the countersunk holes (35) by screws.

6. A rotary template for detecting the limit surface of the locking position of the automatic coupler according to claim 1, characterized in that: A handle (4) is connected between the two circular plates (2) via an angle steel.

7. A rotary template for detecting the limit surface of the locking position of the automatic coupler according to claim 1, characterized in that: The radius of the horizontal projection of the template body (3) connecting the outer corner of the upper impact rotor (31) and the outer corner of the lower impact rotor (32) is 8 to 15 mm, and the radius of the horizontal projection of the template body (3) connecting the inner corner of the upper impact rotor (31) and the inner corner of the lower impact rotor (32) is 8 to 15 mm.

8. The rotary template for detecting the limit surface of the locking position of the automatic coupler according to claim 1, characterized in that: The radius of the longitudinal projection of the template body (3) connecting the upper impact rotating body (31) and the lower impact rotating body (32) is 15 to 20 mm.

9. The rotary template capable of detecting the limit surface of the locking position of the automatic coupler according to claim 1, characterized in that: The height of the arc section of the template body (3) connecting the upper impact rotating body (31) and the lower impact rotating body (32) is 55 to 75 mm.

10. A rotary template for detecting the limit surface of the locking position of the automatic coupler according to any one of claims 1 to 9, characterized in that: The thickness of the template body (3) is 6 to 9 mm.

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