CN219178895U

CN219178895U - Sand spraying test tool for electric locomotive

Info

Publication number: CN219178895U
Application number: CN202320105685.0U
Authority: CN
Inventors: 赵洁; 李吉龙; 张斌; 杜华亮; 李培璐
Original assignee: CRRC Luoyang Locomotive Co Ltd
Current assignee: CRRC Luoyang Locomotive Co Ltd
Priority date: 2023-02-03
Filing date: 2023-02-03
Publication date: 2023-06-13
Anticipated expiration: 2033-02-03

Abstract

The utility model discloses a sand spraying test tool of an electric locomotive, which comprises a bracket trolley; the bracket trolley comprises triangular brackets symmetrically arranged on two sides of the trolley body; the upper parts of the triangular brackets are connected with rotating parts through bolts; the upper parts of the triangular brackets are connected with a sand box through a rotating part; the back of the sand box is provided with an air pressure regulating valve communicated with the air pressure regulating valve, and the lower part of the sand box is provided with a sand separator communicated with the sand box; the lower part of the sand separator is provided with a sand collecting box which is arranged at the bottom of the bracket trolley. According to the utility model, through the matched use of the rotating component and the sand separator, the rotation and fixation of the sand box can be realized, the sand loading and unloading of the sand box and the adjustment of the sand spraying amount are convenient, and the sand spraying valve bottom plates with different types are arranged at the bottom of the sand separator, so that the sand spraying valve tests with different types can be satisfied.

Description

Sand spraying test tool for electric locomotive

Technical Field

The utility model belongs to the technical field of locomotive tools, and particularly relates to an electric locomotive sanding test tool.

Background

The locomotive sanding device refers to a device for sanding a locomotive to a steel rail surface. The sanding device generally comprises a sanding device, a sanding electric air valve, a sand box, a pipeline and the like. The sand spreader and the sand box are arranged on the bogie, a driver operates the sand spreading electric air valve, and sand in the sand box enters the sand spreading pipe to spread sand to the rail surface through the sand spreader under the action of compressed air. Sanding increases the sticking coefficient between the wheel rails to increase sticking traction and prevent wheel spin. The sanding device is widely used for a railway vehicle, and is used for sand blasting between a wheel and a wheel rail so as to increase the adhesion coefficient between the wheel and the wheel rail and prevent the wheel from idling or locking by braking; the sand spraying valve is used as one of media for improving the adhesive force of the locomotive, and the working performance of the sand spraying valve influences the safe operation of the locomotive, so that when the sand spraying valve is manufactured and overhauled, whether the sand spraying valve is used for spraying sand or not meets the design requirement is detected by simulating the sand spraying state of the locomotive before the sand spraying valve is used; because the assembly flanges of the sanding valves of different models are different, the sanding amount in different states is present, and great inconvenience is brought to the test, so that the tooling equipment suitable for the test requirements of the sanding valves of different models is needed.

Disclosure of Invention

The utility model aims to provide a sand spraying test tool for an electric locomotive, which is convenient to operate, can meet the requirements of sand spraying valve tests of different types and the requirements of pressure control of the sand spraying valve tests, greatly improves the accuracy of the sand spraying valve tests, and reduces reworking and repairing after loading.

In order to achieve the purpose of using the novel materials, the utility model adopts the following technical scheme:

the utility model provides an electric locomotive sanding test frock, includes the support dolly; the bracket trolley comprises triangular brackets symmetrically arranged on two sides of the trolley body; the upper parts of the triangular brackets are connected with rotating parts through bolts; the upper parts of the triangular brackets are connected with a sand box through a rotating part; the back of the sand box is provided with an air pressure regulating valve communicated with the air pressure regulating valve, and the lower part of the sand box is provided with a sand separator communicated with the sand box; the lower part of the sand separator is provided with a sand collecting box which is arranged at the bottom of the bracket trolley.

The rotating part comprises a bearing seat clamped at the upper part of the triangular bracket; the bearing seat is internally provided with a rolling bearing, and the rolling bearing is internally provided with a rotating shaft A penetrating through the rolling bearing and pivoted on the side end face of the sand box.

The sand separator is of an inverted Y-shaped structure, an inlet end at the top of the sand separator is connected with the bottom of a sand box through bolts, and outlet ends at the bottom of the sand separator are respectively connected with sand spreading valve bottom plates of different types through bolts; a rotating shaft B is arranged at a Y-shaped fork in the sand separator; the rotating shaft B is fixedly connected with a sand baffle which can rotate along with the rotating shaft B; one side shaft end of the rotating shaft B is connected with a rotating handle arranged on the back surface of the outer side of the sand separator; the front surface of the outer side of the sand separator is connected with a sand separator panel through bolts.

Sand box fixing plates are welded on the end surfaces of two sides of the sand box; the sand box fixing plate is a cross-shaped plate, and positioning holes are formed in four end faces of the plate surface.

A positioning pin penetrating through the bracket is arranged below the bearing seat at the upper part of the triangular bracket; the locating pin is matched with a locating hole on the sand box fixing plate.

The panel of the sand separator is connected with the box body of the sand separator by bolts, and the panel is a transparent visual panel.

The top of the sand box is provided with a sand injection port; and a sand box cover is further arranged on the sand injection port.

Universal wheels with self-locking mechanisms are arranged at four corners of the bottom of the bracket trolley.

Compared with the prior art, the utility model has the beneficial effects that: the rotating component is matched with the sand separator, so that the sand box can be rotated and fixed, the sand loading and unloading of the sand box and the adjustment of the sand scattering amount are facilitated, and the sand scattering valve bottom plates with different types are arranged at the bottom of the sand separator, so that the sand scattering valve tests with different types can be met; meanwhile, in order to further simulate the sand-discharging state of the locomotive, an air pressure regulating valve is arranged on the sand box, the test air pressure of the sand-spraying valve is stable by regulating the air pressure regulating valve, the test pressure is recorded in real time, the test accuracy of the sand-spraying valve is greatly improved, and reworking and repairing after loading are reduced.

Drawings

Fig. 1 is a schematic structural view of the present utility model.

FIG. 2 is a schematic view of a sand separator according to the present utility model.

FIG. 3 is a schematic diagram of a sand separator according to the present utility model.

FIG. 4 is a schematic view of the flask structure of the present utility model.

In the figure: 1. the sand setting device comprises a bracket trolley, 2, a triangular bracket, 3, a sand box, 4, an air pressure regulating valve, 5, a sand separator, 6, a sand collecting box, 7, a bearing seat, 8, a rotating shaft A,9, a sanding valve bottom plate, 10, a rotating shaft B,11, a sand baffle plate, 12, a rotating handle, 13, a sand separator panel, 14, a sand box fixing plate, 15, a locating pin, 16, a sand box cover, 17 and a universal wheel.

Detailed Description

The present utility model will be described below with reference to the accompanying drawings.

The electric locomotive sanding test fixture comprises a bracket trolley 1 as shown in fig. 1-4; the bracket trolley 1 comprises triangular brackets 2 symmetrically arranged on two sides of a trolley body; the upper parts of the triangular brackets 2 are connected with rotating parts through bolts; the sand box 3 is connected between the upper parts of the triangular brackets 2 through a rotating part; the back of the sand box 3 is provided with an air pressure regulating valve 4 communicated with the air pressure regulating valve, and the lower part of the sand box 3 is provided with a sand separator 5 communicated with the sand box; the top of the sand box 3 is provided with a sand injection port; a sand box cover 16 is also arranged on the sand injection port; the top of the sand box 3 is provided with a sand injection port and a sand box cover 16, gravel can be injected into the sand box 3 through the sand injection port, and after sand injection, the sand box cover 16 is closed, so that sealing and moisture prevention of gravel are realized. The lower part of the sand separator 5 is provided with a sand collecting box 6 which is arranged at the bottom of the bracket trolley 1. The air pressure regulating valve 4 is used for controlling the flow rate of air entering the sand box 3, and can regulate proper air pressure according to different process requirements, so that the accuracy of the sand spraying valve test is greatly improved; the rotating part comprises a bearing seat 7 clamped at the upper part of the tripod 2; the bearing seat 7 is internally provided with a rolling bearing, and the rolling bearing is internally provided with a rotating shaft A8 penetrating through the rolling bearing and pivoted on the side end face of the sand box 3. Here, the flask 3 is rotatable about the rotation axis A8. The sand separator 5 is of an inverted Y-shaped structure, the top inlet end of the sand separator 5 is connected with the bottom of the sand box 3 through bolts, and the bottom outlet end of the sand separator is respectively connected with sand spreading valve bottom plates 9 of different types through bolts; a rotating shaft B10 is arranged at the Y-shaped fork in the sand separator 5; the rotating shaft B10 is fixedly connected with a sand baffle 11 which can rotate along with the rotating shaft B10; one side shaft end of the rotating shaft B10 is connected with a rotating handle 12 arranged on the back surface of the outer side of the sand separator 5; the outside front of the sand separator 5 is connected with a sand separator panel 13 through bolts. Here testers can control the sand baffle 11 in the sand separator 5 to swing left and right through the swinging handle 12, so that the sand baffle 11 can separate sand, and sand spreading valve tests of different models can be met.

The sand box fixing plates 14 are welded on the end surfaces of the two sides of the sand box 3; the sand box fixing plate 14 is a cross-shaped plate, and positioning holes are formed in four end faces on the plate surface; a positioning pin 15 penetrating through the bracket is arranged below the bearing seat 7 at the upper part of the triangular bracket 2; the positioning pins 15 are matched with positioning holes in the sand box fixing plate 14. When the position of the sand box 3 needs to be stabilized, the positioning pins 15 can be inserted into the positioning holes on the sand box fixing plate 14 to fix and position, the working environment of the sand box 3 in the orthogonal direction can be realized, and finally the orthogonal direction is fixed through the positioning pins 15; the panel 13 of the sand separator is connected with the box body of the sand separator 5 by bolts, and the panel is a transparent visual panel; the panel is toughened glass or transparent acrylic plate, so that the experimental result that the sand baffle plate is turned over and downward sand spraying is performed in the sand box can be conveniently observed; the four corners of the bottom of the bracket trolley 1 are provided with universal wheels 17 with self-locking mechanisms, and the universal wheels 17 with the self-locking mechanisms can ensure flexible use places and stable and fixed work.

When the sand box fixing device is used, firstly, the sand box 3 is rotated to a certain angle through the rotating shaft A8, and is inserted into the positioning holes on the sand box fixing plate 14 through the positioning pins 15 to be positioned, then, the sanding valve bottom plate 9 with a required test model is arranged at the bottom of the sand separator 5, and after the sand box 3 is arranged, the sand box is returned and positioned and fixed through the positioning pins 15; the sand is injected into the sand box 3 through the sand injection port, the rotating handle 12 is rotated to drive the sand baffle 11 to swing to a required sand discharging channel for sand separation, sand scattering valve tests of different models can be met, meanwhile, the air pressure regulating valve 4 can be opened, the test wind pressure of the sand scattering valve is stable and the test pressure is recorded in real time by regulating the air pressure regulating valve 4, so that the sand passes through one of the sand scattering valve bottom plates 9 and falls into the sand collecting box 6, and the sand scattering test can be completed. The test fixture aims at 3 sand spreaders with the model number HXD1B, HXD1C, HXD D and the like, achieves the purpose of a universal fixture, greatly improves the accuracy of sand spreading valve test, and reduces reworking and repairing after loading.

While the preferred embodiments of the present utility model have been described in detail, the present utility model is not limited to the above embodiments, and various changes may be made without departing from the spirit of the present utility model within the knowledge of those skilled in the art.

Claims

1. The utility model provides an electric locomotive sanding test fixture, includes support dolly (1); the method is characterized in that: the bracket trolley (1) comprises triangular brackets (2) symmetrically arranged on two sides of the trolley body; the upper parts of the triangular brackets (2) are connected with rotating parts through bolts; the sand boxes (3) are connected between the upper parts of the triangular brackets (2) through rotating parts; the back of the sand box (3) is provided with an air pressure regulating valve (4) communicated with the air pressure regulating valve, and the lower part of the sand box (3) is provided with a sand separator (5) communicated with the sand box; the lower part of the sand separator (5) is provided with a sand collecting box (6) which is arranged at the bottom of the bracket trolley (1).

2. The electric locomotive sanding test fixture of claim 1, wherein: the rotating part comprises a bearing seat (7) clamped at the upper part of the triangular bracket (2); the rolling bearing is arranged in the bearing seat (7), and a rotating shaft A (8) penetrating through the rolling bearing is arranged in the rolling bearing and pivoted on the side end face of the sand box (3).

3. The electric locomotive sanding test fixture of claim 1, wherein: the sand separator (5) is of an inverted Y-shaped structure, the top inlet end of the sand separator (5) is connected with the bottom of the sand box (3) through bolts, and the bottom outlet end of the sand separator is respectively connected with sand spreading valve bottom plates (9) of different types through bolts; a rotating shaft B (10) is arranged at a Y-shaped fork in the sand separator (5); the rotating shaft B (10) is fixedly connected with a sand baffle (11) which can rotate along with the rotating shaft B (10); one side shaft end of the rotating shaft B (10) is connected with a rotating handle (12) arranged on the back surface of the outer side of the sand separator (5); the front surface of the outer side of the sand separator (5) is connected with a sand separator panel (13) through bolts.

4. The electric locomotive sanding test fixture of claim 1, wherein: the two side end surfaces of the sand box (3) are welded with sand box fixing plates (14); the sand box fixing plate (14) is a cross-shaped plate, and positioning holes are formed in four end faces of the plate surface.

5. The electric locomotive sanding test fixture as defined in claim 2, wherein: a locating pin (15) penetrating through the bracket is arranged below the bearing seat (7) at the upper part of the triangular bracket (2); the locating pins (15) are matched with locating holes on the sand box fixing plate (14).

6. The electric locomotive sanding test fixture of claim 3, wherein: the panel (13) of the sand separator is connected with the box body of the sand separator (5) by bolts, and the panel is a transparent visual panel.

7. The electric locomotive sanding test fixture of claim 1, wherein: the top of the sand box (3) is provided with a sand injection port; and a sand box cover (16) is further arranged on the sand injection port.

8. The electric locomotive sanding test fixture of claim 1, wherein: universal wheels (17) with self-locking mechanisms are arranged at four corners of the bottom of the bracket trolley (1).