A device for adjusting the pressure regulating valve of auxiliary air compressor of EMU

Abstract

The utility model belongs to the field of overhaul and maintenance technology, and discloses a device for adjusting the pressure regulating valve of the auxiliary air compressor of the EMU, including an outer carrier and an adjusting assembly; the outer carrier includes a ring part and a shaft sleeve, and the ring part is connected to the shaft sleeve; the adjusting assembly includes a gear ring adjusting member and a gear shaft; the gear ring adjusting member is rotatably arranged in the ring part; the gear shaft is rotatably arranged in the shaft sleeve; a gear is arranged at one end of the gear shaft, and the gear is meshed and connected with the gear ring adjusting member; a connecting part is arranged at the other end of the gear shaft, and the connecting part can be connected to an external driving device; the gear ring adjusting member can cooperate with the outer circumference of the pressure regulating valve of the auxiliary air compressor of the EMU. The utility model can accurately control the adjustment amount of the pressure regulating valve, reduce the number of repeated adjustments of the valve, and improve the working efficiency.

Description

Technical Field

[0001] The utility model belongs to the technical field of inspection and maintenance, and in particular relates to a device for adjusting a pressure regulating valve of an auxiliary air compressor of a motor vehicle group. Background Art

[0002] At present, the auxiliary air compressor of CRH6A is a device used for auxiliary air supply when there is no high voltage electricity in the EMU. It is necessary to regularly calibrate whether the working air pressure of the auxiliary air compressor is between ±10kpa of the specified value. Usually, it is necessary to adjust the auxiliary air compressor pressure regulating valve, and the corresponding auxiliary air compressor pressure regulating valve is in a narrow equipment box. Since the pressure regulating valve is large in size and is in a narrow space, it is difficult for maintenance personnel to easily and accurately rotate the pressure regulating valve either by hand or using existing adjustment tools. Therefore, there is currently a lack of a device for adjusting the pressure regulating valve of the auxiliary air compressor of the EMU to accurately control the adjustment amount of the pressure regulating valve, reduce the number of repeated adjustments of the valve, and improve work efficiency.

[0003] Therefore, a new technology is needed to solve the problem that the prior art lacks a device for adjusting the pressure regulating valve of the auxiliary air compressor of the EMU. Utility Model Content

[0004] In order to solve the above problems in the prior art, the utility model provides a device for adjusting the pressure regulating valve of the auxiliary air compressor of the EMU, which can accurately control the adjustment amount of the pressure regulating valve, reduce the number of repeated adjustments of the valve, and improve operating efficiency.

[0005] The utility model adopts the following technical solutions:

[0006] A device for adjusting a pressure regulating valve of an auxiliary air compressor of a multiple unit train comprises an outer carrier and an adjusting assembly; the outer carrier comprises a ring portion and a shaft sleeve, the ring portion being connected to the shaft sleeve; the adjusting assembly comprises a gear ring adjusting member and a gear shaft; the gear ring adjusting member is rotatably disposed in the ring portion; the gear shaft is rotatably disposed in the shaft sleeve; a gear is provided at one end of the gear shaft, the gear is meshingly connected to the gear ring adjusting member; a connecting portion is provided at the other end of the gear shaft, the connecting portion can be connected to an external driving device; the gear ring adjusting member can cooperate with the outer circumference of the pressure regulating valve of the auxiliary air compressor of the multiple unit train.

[0007] Furthermore, the ring portion is an annular shell having an inner ring cavity, and the gear ring adjustment member is rotatably disposed in the inner ring cavity.

[0008] Furthermore, the annular shell is provided with angle engraved lines, and the gear ring adjustment member is provided with indicator lines.

[0009] Furthermore, the gear ring adjustment member is provided with an inner ring portion and an outer ring portion, the inner ring portion can cooperate with the outer circumference of the EMU auxiliary air compressor pressure regulating valve, and the outer ring portion can be meshed and connected with the gear.

[0010] Furthermore, the inner ring portion is provided with a groove.

[0011] Furthermore, a plurality of the grooves form ring teeth.

[0012] Furthermore, the connecting portion is provided with a connecting groove, and the connecting groove can be connected to an external driving device.

[0013] Furthermore, the cross-section of the connecting groove is in a square shape.

[0014] Furthermore, a central axis of the sleeve is perpendicular to a mid-section of the ring portion.

[0015] Furthermore, the connection between the shaft sleeve and the ring portion is rounded.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] The utility model discloses a device for adjusting a pressure regulating valve of an auxiliary air compressor of a multiple unit train, comprising an outer carrier and an adjusting component. The outer carrier can provide a stable carrier for placing the adjusting component. The gear ring adjusting part of the adjusting component can cooperate with the outer circumference of the pressure regulating valve of the auxiliary air compressor of the multiple unit train. People can drive the gear shaft to rotate through an external driving device (such as a ratchet wrench), and then the gear drives the gear ring adjusting part to rotate. The rotation of the gear ring adjusting part drives the pressure regulating valve to rotate, thereby realizing the adjustment of the pressure regulating valve. The utility model can accurately control the adjustment amount of the pressure regulating valve, reduce the number of repeated adjustments of the valve, and improve the working efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The technology of the utility model is further described in detail below in conjunction with the accompanying drawings and specific embodiments:

[0019] Figure 1 It is an exploded view of the device of the utility model;

[0020] Figure 2 yes Figure 1 The assembled three-dimensional diagram;

[0021] Figure 3 yes Figure 2 A top view of

[0022] Figure 4 yes Figure 2 The mid-longitudinal section of .

[0023] Reference numerals:

[0024] 1-outer carrier; 11-ring; 111-inner ring cavity; A-angle score line; 12-sleeve; E-round corner; G-center axis; H-mid-section;

[0025] 2-adjustment assembly; 21-toothed ring adjustment member; 211-inner ring portion; B-groove; C-ring teeth; F-indicator line; 212-outer ring portion; 22-gear shaft; 221-gear; 222-connecting portion; D-connecting groove. DETAILED DESCRIPTION

[0026] The following will be combined with the embodiments and drawings to clearly and completely describe the concept, specific structure and technical effects of the utility model, so as to fully understand the purpose, scheme and effect of the utility model. It should be noted that the embodiments and features in the embodiments in this application can be combined with each other without conflict. The same reference numerals used throughout the drawings indicate the same or similar parts.

[0027] It should be noted that, unless otherwise specified, when a feature is referred to as being "fixed" or "connected" to another feature, it can be directly fixed or connected to the other feature, or it can be indirectly fixed or connected to the other feature. In addition, the descriptions of up, down, left, right, etc. used in the present invention are only relative to the relative positional relationship of the components of the present invention in the accompanying drawings.

[0028] Reference Figures 1 to 4 , a device for adjusting the pressure regulating valve of the auxiliary air compressor of a train, comprising an outer carrier 1 and an adjusting assembly 2; the outer carrier 1 comprises a ring portion 11 and a sleeve 12, the ring portion 11 is connected to the sleeve 12; the adjusting assembly 2 comprises a gear ring adjusting member 21 and a gear shaft 22; the gear ring adjusting member 21 is rotatably arranged in the ring portion 11; the gear shaft 22 is rotatably arranged in the sleeve 12; a gear 221 is provided at one end of the gear shaft 22, the gear 221 is meshed and connected with the gear ring adjusting member 21; a connecting portion 222 is provided at the other end of the gear shaft 22, the connecting portion 222 can be connected to an external driving device; the gear ring adjusting member 21 can cooperate with the outer circumference of the pressure regulating valve of the auxiliary air compressor of the train. Among them, the sleeve 12 also serves as a handle, which can be convenient for people to hold.

[0029] Reference Figures 1 to 4 In one embodiment, the ring portion 11 is an annular shell having an inner ring cavity 111 , and the gear ring adjustment member 21 is rotatably disposed in the inner ring cavity 111 .

[0030] Reference Figures 1 to 3 In one embodiment, an angle mark A is provided on the annular shell, and an indicator line F is provided on the gear ring adjustment member 21.

[0031] Reference Figures 1 to 3 In one embodiment, the gear ring adjustment member 21 is provided with an inner ring portion 211 and an outer ring portion 212 , wherein the inner ring portion 211 can cooperate with the outer circumference of the EMU auxiliary air compressor pressure regulating valve, and the outer ring portion 212 can be meshedly connected with the gear 221 .

[0032] Reference Figures 1 to 3 In one embodiment, the inner ring portion 211 is provided with a groove B.

[0033] Reference Figures 1 to 3 In one embodiment, several of the grooves B form a ring tooth C.

[0034] Reference Figures 1 to 4 In one embodiment, the connecting portion 222 is provided with a connecting slot D, and the connecting slot D can be connected to an external driving device. In one embodiment, the external driving device is a ratchet wrench.

[0035] Reference Figure 3 In this embodiment, the cross-section of the connecting groove 222 is a square.

[0036] Reference Figure 4 In one embodiment, the central axis G of the sleeve 12 is perpendicular to the mid-section H of the ring portion 11 .

[0037] Reference Figure 1 In one embodiment, the connection between the sleeve 12 and the ring portion 11 is transitioned to a rounded corner E.

[0038] In one embodiment, the method of using the utility model comprises the following steps:

[0039] S1. Insert the ring portion 11 of the device with the gear ring adjusting member 21 into the pressure regulating valve, so that the groove B of the inner ring portion 211 matches the outer hexagonal corner of the pressure regulating valve;

[0040] S2, use a ratchet wrench to connect the ratchet wrench to the connecting groove D of the gear shaft 22;

[0041] S3, rotate the ratchet wrench, the connecting portion 222 with the connecting groove D drives the gear shaft 22 to rotate in the shaft sleeve 12, the gear shaft 22 rotates, the gear 221 at the shaft end of the gear shaft 22 also rotates, the rotation of the gear 221 drives the gear ring adjusting member 21 to rotate in the annular housing, and the rotation of the gear ring adjusting member 21 drives the pressure regulating valve to rotate;

[0042] S5. Observe which angle scale line A on the upper surface of the annular housing is indicated by the indicator line F on the upper surface of the gear ring adjusting member 21, and determine the rotation amount of the rotation angle, thereby obtaining the adjustment amount of the pressure regulating valve.

[0043] Through the utility model, the pressure regulating valve of the auxiliary air compressor can be accurately rotated in a narrow space to calibrate the working air pressure of the auxiliary air compressor. The utility model can accurately control the adjustment amount of the pressure regulating valve, reduce the number of repeated valve adjustments, and improve work efficiency.

[0044] For other contents of the device for adjusting the pressure regulating valve of the auxiliary air compressor of a train set described in the utility model, please refer to the prior art and will not be described in detail here.

[0045] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Therefore, any modification, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A device for adjusting the pressure regulating valve of an auxiliary air compressor of a train unit, characterized in that: It comprises an outer carrier and an adjusting assembly; the outer carrier comprises a ring portion and a shaft sleeve, the ring portion is connected to the shaft sleeve; the adjusting assembly comprises a gear ring adjusting member and a gear shaft; the gear ring adjusting member is rotatably arranged in the ring portion; the gear shaft is rotatably arranged in the shaft sleeve; a gear is arranged at one end of the gear shaft, the gear is meshingly connected with the gear ring adjusting member; a connecting portion is arranged at the other end of the gear shaft, the connecting portion can be connected to an external driving device; the gear ring adjusting member can cooperate with the outer circumference of the pressure regulating valve of the auxiliary air compressor of the EMU.

2. The device for adjusting the pressure regulating valve of the auxiliary air compressor of a train set according to claim 1, characterized in that: The ring portion is a ring-shaped shell having an inner ring cavity, and the gear ring adjusting member is rotatably arranged in the inner ring cavity.

3. The device for adjusting the pressure regulating valve of the auxiliary air compressor of a train set according to claim 2, characterized in that: The annular housing is provided with angle engraved lines, and the gear ring adjusting member is provided with indicator lines.

4. The device for adjusting the pressure regulating valve of the auxiliary air compressor of a train set according to claim 1, characterized in that: The gear ring adjustment member is provided with an inner ring portion and an outer ring portion, wherein the inner ring portion can cooperate with the outer circumference of the pressure regulating valve of the auxiliary air compressor of the EMU, and the outer ring portion can be meshed and connected with the gear.

5. The device for adjusting the pressure regulating valve of the auxiliary air compressor of a train set according to claim 4, characterized in that: The inner ring portion is provided with a groove.

6. The device for adjusting the pressure regulating valve of the auxiliary air compressor of a train set according to claim 5, characterized in that: A plurality of the grooves form annular teeth.

7. The device for adjusting the pressure regulating valve of the auxiliary air compressor of a train set according to claim 1, characterized in that: The connecting portion is provided with a connecting groove, and the connecting groove can be connected to an external driving device.

8. The device for adjusting the pressure regulating valve of the auxiliary air compressor of a train set according to claim 7, characterized in that: The cross-section of the connecting groove is in the shape of a square.

9. The device for adjusting the pressure regulating valve of the auxiliary air compressor of a train set according to claim 1, characterized in that: The central axis of the sleeve is perpendicular to the mid-section of the ring portion.

10. The device for adjusting the pressure regulating valve of the auxiliary air compressor of a train set according to claim 1, characterized in that: The connection between the shaft sleeve and the ring portion is rounded.

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