Braking device for dead-in-tow movement of GOST standard locomotive, and GOST standard locomotive

Abstract

A braking device for dead-in-tow movement of a GOST standard locomotive, and a GOST standard locomotive. The braking device comprises a distribution valve module; the distribution valve module comprises a pressure reducing valve (4); the pressure reducing valve (4) has an input end communicated with a train pipe (7) of a GOST standard locomotive, and an output end communicated with a pre-control pipe (8) of the GOST standard locomotive, and is used for adjusting output pressure of the train pipe (7) to form input pressure of the pre-control pipe (8), and enabling the input pressure of the pre-control pipe (8) to reach a preset value range.

Description

Unpowered return brake device of GOST standard locomotive and GOST standard locomotive Technical Field

[0001] The present disclosure relates to the technical field of locomotives, and in particular to an unpowered return braking device of a GOST standard locomotive and a GOST standard locomotive. Background Art

[0002] The locomotive's braking system generates air pressure from the brake cylinder, which pushes the actuator on the locomotive bogie. Braking is achieved by venting the brake cylinder pressure to atmosphere. Chinese railway standards require that the brake cylinder output pressure for unpowered return locomotives be within the range of 200-250 kPa, and the braking and release times of the locomotives be consistent with those of domestic locomotives. Since the brake cylinder output pressure of locomotives using the GOST standard braking system is 380-400 kPa, the original brake cylinder pressure must be adjusted to the domestic specified range while also ensuring synchronization with the braking and release times of domestic locomotives.

[0003] In the prior art, the distribution valve module typically outputs the pre-control pipe pressure based on the pressure changes in the train pipe. The pre-control pipe then controls the brake cylinder relay valve to control the air source pressure of the main air duct according to the pre-control pipe pressure, thereby outputting the corresponding brake cylinder pressure. When the locomotive needs to relieve, the pre-control pipe pressure drops, and the output brake cylinder pressure is discharged to the atmosphere through the relay valve, thereby achieving relief. However, the pressure reducing valve of the prior art distribution valve module is installed at the output end of the brake cylinder relay valve. Both braking and relief of the locomotive must pass through the pressure reducing valve. If the pressure reducing valve fails, the locomotive will be unable to brake or relieve, and the brake cylinder shut-off valve installed in the original system will also lose its function. Furthermore, to meet the synchronization of the braking relief time with domestic locomotives, the GOST standard brake system needs to be set to a mode to match domestic locomotives. First, the passenger-freight transfer valve is set to passenger mode, second, the passenger distribution valve is adjusted to the short marshaling position, and third, the freight distribution valve is adjusted to plain mode. Therefore, the prior art suffers from poor reliability and cumbersome operation.

[0004] Based on this, the existing technology needs to be improved.

[0005] Summary of the Invention

[0006] In order to solve the above technical problems, one aspect of the embodiments of the present disclosure provides an unpowered return braking device for a GOST standard locomotive, including: a distribution valve module, the distribution valve module includes a pressure reducing valve, the input end of the pressure reducing valve is connected to the train pipe of the GOST standard locomotive, and the output end of the pressure reducing valve is connected to the pre-control pipe of the GOST standard locomotive, so as to adjust the output pressure of the train pipe to form the input pressure of the pre-control pipe, and make the input pressure of the pre-control pipe reach within a preset value range.

[0007] Furthermore, the distribution valve module also includes an acting air cylinder, which is connected to the output end of the train pipe to adjust the output pressure of the train pipe.

[0008] Furthermore, the distribution valve module also includes a working air cylinder, which is connected to the input end of the pressure reducing valve for storing compressed air for the pre-control pipe.

[0009] Furthermore, the distribution valve module also includes a three-way valve, and the output end of the train pipe is connected to the pressure reducing valve and the working air cylinder through the three-way valve.

[0010] Furthermore, the distribution valve module also includes a cut-off valve, and the output end of the pressure reducing valve is connected to the pre-control pipe through the cut-off valve.

[0011] Furthermore, the three-way valve includes three pressure mechanism valves.

[0012] Furthermore, it also includes a gas circuit board, and the distribution valve module is installed on the gas circuit board.

[0013] Furthermore, the output pressure of the pre-control pipe is 200-250 kPa.

[0014] Another aspect of the embodiments of the present disclosure provides a GOST standard locomotive, including the above-mentioned unpowered return braking device of the GOST standard locomotive.

[0015] Furthermore, it also includes an existing distribution valve module, and the existing distribution valve module is connected in parallel with the distribution valve module.

[0016] According to the above technical solution, the present invention provides a GOST standard locomotive unpowered return braking device and a GOST standard locomotive, which controls the pre-control pressure through a distribution valve module so that the final brake cylinder pressure meets the domestic unpowered return requirements; by arranging the pressure reducing valve before the pre-control pipe, it avoids the unpowered return locomotive braking not being relieved due to a pressure reducing valve failure, resulting in delays in the entire train; by connecting the existing distribution valve module in parallel with the distribution valve module, the operating steps during the unpowered return of the locomotive are simplified. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0018] FIG1 is a schematic diagram of a distribution valve module disclosed in an embodiment of the present invention;

[0019] FIG2 is a schematic diagram of an air path plate disclosed in an embodiment of the present invention.

[0020] Figure numerals: 1. Three-way valve; 2. Working air cylinder; 3. Action air cylinder; 4. Pressure reducing valve; 5. Shut-off valve; 6. Air circuit board; 7. Train pipe; 8. Pre-control pipe. DETAILED DESCRIPTION

[0021] It should be understood that the embodiments of the present invention shown in the exemplary embodiments are merely illustrative. Although only a few embodiments have been described in detail in the present invention, it is readily apparent to those skilled in the art that various modifications are feasible without departing substantially from the teachings of the subject matter of the present invention. Accordingly, all such modifications should be included within the scope of the present invention. Without departing from the gist of the present invention, other replacements, modifications, variations, and deletions may be made to the design, operating conditions, and parameters of the following exemplary embodiments.

[0022] As shown in FIG1 , the present invention provides an unpowered return brake device for a GOST standard locomotive, comprising: a distribution valve module, the distribution valve module including a pressure reducing valve 4, the input end of the pressure reducing valve 4 being connected to a train pipe 7 of a GOST standard locomotive, and the output end of the pressure reducing valve 4 being connected to a pre-control pipe 8 of a GOST standard locomotive, for adjusting the output pressure of the train pipe 7 to form an input pressure of the pre-control pipe 8, and ensuring that the input pressure of the pre-control pipe 8 reaches within a preset value range.

[0023] The above technical solution of the present invention controls the pre-control pressure through the distribution valve module so that the final brake cylinder pressure meets the domestic requirements for unpowered return; by arranging the pressure reducing valve 4 before the pre-control pipe 8, it avoids the failure of the pressure reducing valve 4 to cause the brake of the unpowered return locomotive to not be relieved, resulting in delay of the entire train.

[0024] In the above device, as shown in FIG1 , the distribution valve module further includes an acting air cylinder 3 , which is connected to the output end of the train pipe 7 for adjusting the output pressure of the train pipe 7 .

[0025] In the above device, as shown in FIG1 , the distribution valve module further includes a working air cylinder 2 , which is connected to the input end of the pressure reducing valve 4 for storing compressed air for the pre-control pipe 8 .

[0026] In the above device, as shown in FIG1 , the distribution valve module further includes a three-way valve 1 , and the output end of the train pipe 7 is connected to the pressure reducing valve 4 and the working air cylinder 3 through the three-way valve 1 .

[0027] In the above device, as shown in FIG1 , the distribution valve module further includes a cut-off valve 5 , and the output end of the pressure reducing valve 4 is connected to the pre-control pipe 8 through the cut-off valve 5 .

[0028] In the above device, as shown in FIG1 , the three-way valve 1 includes three pressure mechanism valves.

[0029] In the above device, as shown in FIG. 2 , a gas circuit board 6 is further included, and the distribution valve module is mounted on the gas circuit board 6 .

[0030] Furthermore, the output pressure of the pre-control pipe 8 is 200-250 kPa.

[0031] Another aspect of the present invention provides a GOST standard locomotive, comprising the above-mentioned unpowered return braking device for the GOST standard locomotive.

[0032] The locomotive further includes an existing distribution valve module, and the existing distribution valve module is connected in parallel with the distribution valve module.

[0033] The above technical solution of the present invention is described in detail below through the implementation process.

[0034] The working air cylinder 2, three-way valve 1, acting air cylinder 3, pressure reducing valve 4 and shut-off valve 5 are all plate-mounted and integrated on the air circuit board 6. The communication between the various components is achieved through the internal air circuit of the air circuit board 6. The air circuit board 6 is also provided with a train pipe 7 inlet and a pre-control pipe 8 outlet.

[0035] Three-way valve 1 is a three-pressure mechanism valve. The acting air cylinder 3 and the working air cylinder 2 are connected to the three-way valve 1. The three-way valve 1 outputs pre-controlled pressure based on the changes in the inlet pressure of the train pipe 7 and the pressure of the two air cylinders. The pre-controlled pressure then passes through the pressure reducing valve 4 to form the final pressure of the pre-controlled pipe 8, which controls the brake cylinder relay valve. The brake cylinder output pressure of the GOST standard locomotive is adjusted from 380-400kPa to 200-250kPa to meet the brake cylinder output pressure requirements of domestic non-powered return locomotives.

[0036] The distribution valve module is connected in parallel with the existing distribution valve module in the GOST standard locomotive, and the function is converted through the cut-off valve 5 at the outlet of the pre-control pipe 8 on each module, thereby simplifying the operating steps when the locomotive is sent back without power.

[0037] The above description is only a preferred embodiment of the present invention and is not intended to limit the scope of implementation of the present invention. If the present invention is modified or replaced with equivalents without departing from the spirit and scope of the present invention, it should be included in the scope of protection of the claims of the present invention.

Claims

1. A non-powered return brake device for a GOST standard locomotive, characterized in that: include: A distribution valve module, the distribution valve module comprising a pressure reducing valve (4), the input end of the pressure reducing valve (4) being connected to a train pipe (7) of a GOST standard locomotive, and the output end of the pressure reducing valve (4) being connected to a pre-control pipe (8) of a GOST standard locomotive, so as to adjust the output pressure of the train pipe (7) to form the input pressure of the pre-control pipe (8), and to make the input pressure of the pre-control pipe (8) reach within a preset value range.

2. The unpowered return brake device for GOST standard locomotive according to claim 1, characterized in that: The distribution valve module further comprises an acting air cylinder (3), wherein the acting air cylinder (3) is connected to the output end of the train pipe (7) to adjust the output pressure of the train pipe (7).

3. The unpowered return brake device for GOST standard locomotive according to claim 2, characterized in that: The distribution valve module also includes a working air cylinder (2), which is connected to the input end of the pressure reducing valve (4) to store compressed air for the pre-control pipe (8).

4. The unpowered return brake device for GOST standard locomotive according to claim 3, characterized in that: The distribution valve module also includes a three-way valve (1), and the output end of the train pipe (7) is connected to the pressure reducing valve (4) and the working air cylinder (3) through the three-way valve (1).

5. The unpowered return brake device for GOST standard locomotive according to claim 4, characterized in that: The distribution valve module further comprises a cut-off valve (5), and the output end of the pressure reducing valve (4) is connected to the pre-control pipe (8) via the cut-off valve (5).

6. The unpowered return brake device for GOST standard locomotive according to claim 5, characterized in that: The three-way valve (1) comprises three pressure mechanism valves.

7. The unpowered return brake device for GOST standard locomotive according to claim 6, characterized in that: It also comprises a gas circuit board (6), and the distribution valve module is mounted on the gas circuit board (6).

8. The unpowered return brake device for GOST standard locomotive according to claim 1, characterized in that: The output pressure of the pre-control pipe (8) is 200-250 kPa.

9. A GOST standard locomotive, characterized in that: A non-powered return brake device for a GOST standard locomotive comprising any one of claims 1-8.

10. The GOST standard locomotive according to claim 9, characterized in that: Also included is an existing distribution valve module, which is connected in parallel with the distribution valve module.

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