Hand braking device of railway engineering vehicle

Abstract

A railway engineering vehicle hand braking device comprises a hand brake, a pulley block, a steel wire rope and a state detection mechanism. The pulley block comprises a detection pulley and more than one guide pulley; the other end of the steel wire rope sequentially penetrates through the detection pulley and the guide pulley to be connected with a vehicle brake rod; the state detection mechanism comprises a pin shaft sensor which is arranged at the detection pulley and is used for detecting the state of the hand brake, an analog quantity input module for collecting a tension signal of the pin shaft sensor, and an alarm device for outputting alarm information; and the control host module is used for receiving and processing the tension signal acquired by the analog quantity input module and then controlling the alarm device to work. The release state of the hand brake of the vehicle can be automatically and effectively monitored, driving of a driver is facilitated, safety accidents caused by checking the release state when the driver gets on and gets off the vehicle on line are avoided, safety risks are reduced, abrasion of brake shoes and wheel treads caused by non-release driving is avoided, and wheels are protected.

Description

TECHNICAL FIELD

[0001] The utility model belongs to railway self-wheel operation equipment operation safety technical field. BACKGROUND

[0002] The hand brake device is simple in structure, easy to operate, high in reliability, wide in applicability and low in accessory cost, and is often used as a parking brake device in the field of railway engineering vehicles. Due to the characteristics of the mechanical components, the limit position is currently judged by hand feeling and visual inspection, which is inconvenient for the driver and increases the safety risk of getting on and off the vehicle. If the vehicle is not relieved due to negligence, the brake shoe and the wheel tread will be worn, which will greatly affect the service life of the wheel. SUMMARY

[0003] The utility model discloses a railway engineering vehicle hand brake device, which effectively monitors the relief state of the vehicle hand brake, avoids safety accidents caused by checking the relief state of the hand brake when getting on and off the vehicle, and prevents the brake shoe and the wheel tread from being worn due to not relieving the vehicle.

[0004] The technical scheme of the utility model discloses a railway engineering vehicle hand brake device, which comprises a hand brake, a pulley set, a steel wire rope and a state detection mechanism.

[0005] The pin shaft sensor is fixedly installed at the detection pulley of the hand brake through a mounting pad, a split pin and a mounting flat pad.

[0006] The detection pulley comprises a pulley and a U-shaped mounting seat.

[0007] The mounting pad is provided with a positioning hole matched with a center bump on the lower surface of the end cover of the pin shaft sensor.

[0008] The positioning hole is in the shape of a waist matched with the center bump on the lower surface of the end cover of the pin shaft sensor.

[0009] The depth of the positioning hole is equal to the height of the bump on the pin shaft sensor.

[0010] The mounting pad is U-shaped, and the mounting pad and the U-shaped mounting seat are fixedly embedded through locking columns, and the hole position and the arc edge of the mounting pad are aligned with the U-shaped mounting seat.

[0011] The direction of the arrow on the upper surface of the pin shaft sensor end cover is consistent with the direction of the tangential tension of the contact point between the steel wire rope and the pulley.

[0012] The state detection mechanism further comprises a driving display screen connected with the control host module and used for displaying the state of the hand brake and alarm information.

[0013] The control host module communicates with the driving display screen and the analog input module through Ethernet.

[0014] The utility model discloses a kind of automatic and effective monitoring vehicle hand brake relief state, to facilitate driver driving, avoid the safety accident caused by on and off vehicle to check hand brake relief state, reduce safety risk.Also avoid the brake shoe, wheel tread abrasion caused by not relieving driving, to guarantee wheel normal service life, reach the purpose of protecting wheel.In a certain extent, promote the development process of railway automation, intelligentization. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or prior art, the following will briefly introduce the drawings needed to be used in embodiment or prior art description, obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can be obtained according to these drawings without creative labor.

[0016] Figure 1 It is the structural schematic diagram of the utility model;

[0017] Figure 2 It is the sectional view of pin shaft sensor mounting structure;

[0018] Figure 3 It is the control principle block diagram of state detection mechanism;

[0019] Figure 4 It is the fixed schematic diagram of sensor mounting pad plate. DETAILED DESCRIPTION

[0020] The technical scheme in the embodiments of the utility model will be described clearly and completely in the following by combining with the drawings in the embodiments of the utility model, obviously, the described embodiments are only some embodiments of the utility model, not all the embodiments.The following description of at least one exemplary embodiment is actually only illustrative, and by no means as any limitation on the utility model and its application or use.Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the utility model.

[0021] Techniques, methods, and apparatus known to those of ordinary skill in the relevant art can not be discussed in detail herein, but should be considered part of the specification for purposes of patentability.

[0022] As Figure 1 The railway engineering vehicle hand brake device comprises a NSW hand brake 20, a pulley set, a steel wire rope 12, and a state detection mechanism. The state detection mechanism comprises a pin shaft sensor 5 for detecting the state of the hand brake, an analog input module 1 for collecting the tension signal of the pin shaft sensor 5, an alarm device 3 for outputting alarm information, and a control host module 1 for receiving and processing the tension signal collected by the analog input module 4 and controlling the operation of the alarm device 3. The state detection mechanism further comprises a driving display screen 2 connected to the control host module 1 for displaying the state of the hand brake and the alarm information. The pulley set comprises a detection pulley 00 and two guide pulleys (01, 02). One end of the steel wire rope 12 is connected to the hand brake, and the other end passes through the detection pulley 00 and the guide pulleys (01, 02) in sequence and is connected to the vehicle brake lever. The pin shaft sensor 5 is fixed to the detection pulley 00 of the hand brake through a split pin 10 and a mounting flat pad 11 and a mounting pad 6.

[0023] Figure 2 The detection pulley 00 is composed of a U-shaped mounting seat 8 and a pulley 9. The mounting pad 6 is fixedly embedded with the U-shaped mounting seat 8 through a locking column 7. The pad hole position and the arc edge are aligned with the U-shaped mounting seat 8. The mounting pad 6 is designed with a nearly waist-shaped positioning hole 61 and a locking column. The waist-shaped positioning hole 61 is matched and installed with the protrusion 51 on the end cover of the pin shaft sensor. The protrusion 51 on the lower surface center of the end cover of the pin shaft sensor 5 is embedded into the positioning hole 61 of the mounting pad 6. The depth of the positioning hole 61 is equal to the height of the protrusion 51. The locking column 7 is embedded with the U-shaped mounting seat 8 to lock the pin shaft sensor 5.

[0024] Figure 3 The pin shaft sensor 5 is used for measuring the tension of the steel wire rope. The monitored tension signal is converted into a 4-20mA current signal, which is collected and received by the analog input module 4 and transmitted to the control host module 1. The control host module 1 processes the received tension signal of the steel wire rope, determines the relationship between the measured tension and the set threshold value through logical judgment, and sets the logical judgment value to 1 if the measured tension is greater than or equal to the set threshold value, indicating that the hand brake device is in an unrelieved state. If the measured tension is less than the set threshold value, the logical judgment value is set to 0, indicating that the hand brake device is in a relieved state. The processed tension data and the logical judgment value are transmitted to the driving display screen 2 and the alarm device 3. The control host module 1 is a PLC controller. The driving display screen 2 receives the data sent from the control host module 1 and displays it on the screen. The alarm device 3 outputs an alarm when it receives the signal transmitted by the control host module. Ethernet communication is used between the control host module, the driving display screen, and the analog input module.

[0025] Figure 4 In particular, Figure A, B, C is a group, Figure D, E, F is a group, which shows the requirements for different force directions, the selection of the installation pad and the installation direction of the sensor. The force direction shown in Figure C, i.e. the direction of the arrow shown in the figure, requires the installation pad shown in Figure B, at this time the sensor and the installation pad are installed as shown in Figure A, and the arrow direction in Figure A represents the installation direction of the sensor. The force direction shown in Figure F, i.e. the direction of the arrow shown in the figure, requires the installation pad shown in Figure E, at this time the sensor and the installation pad are installed as shown in Figure D, and the arrow direction in Figure D represents the installation direction of the sensor.

[0026] In order to better adapt to the structure of the hand brake of the railway engineering vehicle, and facilitate the detection of the tension of the wire rope of the pulley set in different installation modes, the installation pad 6 is designed as a U-shaped base and a waist-shaped opening, the waist-shaped opening is uniformly distributed with locking column holes around, the thickness of the pad is 6 mm, and the thickness can be appropriately adjusted according to the type of the selected pin shaft sensor and the thickness of the pulley set mounting seat; the waist-shaped opening in the middle of the installation pad is provided for cooperation with the protrusion on the end cover of the pin shaft sensor for installation, which can more flexibly adjust the direction of the arrow on the upper cover of the sensor to be consistent with the tangential tension direction (arrow direction) of the contact point of the wire rope and the pulley; the installation pad 6 is designed as a U shape, which is consistent with the shape of the pulley set mounting seat 8, and can better find the installation position and facilitate alignment and installation; the installation pad 6 is embedded with the U-shaped mounting seat 8 through the locking column 7, and is designed in a detachable manner, which is more convenient for on-site construction.

[0027] The pin shaft sensor installation pad 6 is embedded with the U-shaped mounting seat 8 of the detection pulley 00 through the locking column 7, the waist-shaped opening in the middle of the pad is installed in cooperation with the protrusion on the end cover of the pin shaft sensor, the direction of the arrow on the upper cover of the sensor is adjusted to be consistent with the tangential tension direction (arrow direction) of the contact point of the wire rope and the pulley, the pin shaft of the sensor passes through the U-shaped mounting seat 8 and the pulley 9, the tail end is installed with the flat pad 11 on the rear side of the U-shaped mounting seat 8 of the detection pulley 00, and finally is locked through the split pin 10.

[0028] The pin shaft sensor detects the tension of the wire rope of the detection pulley, the tension signal is converted into a 4-20 mA current signal, which is collected by the analog input module and then sent to the control host module, the control host module sends the calculated data to the display screen after logical judgment, when the tension of the wire rope of the detection pulley reaches the set threshold value, it indicates that the brake shoe is still in the state of pressing the wheel tread, and has not reached the relief state of the hand brake, the related alarm information is displayed on the driving screen, the vehicle driving is limited by the related interlocking conditions, the control host module at this time issues an instruction to prohibit the vehicle driving, which can effectively avoid the serious damage of the brake shoe and the wheel tread caused by driving in the state of the hand brake not being relieved, and achieves the purpose of protecting the wheel and the brake shoe, thereby ensuring the normal service life of the wheel.

[0029] The above merely illustrates the exemplary embodiments of the present application, and is not used to limit the present application, and any modification, equivalent replacement, improvement, 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 railway engineering vehicle hand brake apparatus, characterized by: Including hand brake machine, pulley block, steel wire rope, state detection mechanism;The pulley block includes detection pulley, more than one guide pulley;The steel wire rope is connected to the hand brake machine at one end, and the other end is sequentially connected with the vehicle brake lever through the detection pulley, the guide pulley;The state detection mechanism includes pin shaft sensor installed on the detection pulley for detecting the state of the hand brake machine, analog input module for collecting the tension signal of the pin shaft sensor, alarm device for outputting alarm information, control host module for receiving the tension signal collected by the analog input module after processing to control the work of the alarm device.

2. The railway engineering vehicle hand brake apparatus of claim 1, wherein: The pin shaft sensor is fixedly installed on the detection pulley of the hand brake machine through a mounting pad, a split pin and a mounting flat pad.

3. The railway engineering vehicle hand brake apparatus of claim 1, wherein: The detection pulley includes a pulley and a U-shaped mounting seat.

4. The railway engineering vehicle hand brake apparatus of claim 2, wherein: The mounting pad is provided with a positioning hole matched with a center bump on the lower surface of the end cover of the pin shaft sensor.

5. The railway engineering vehicle hand brake apparatus of claim 4, wherein: The positioning hole is in a waist type matched with the center bump on the lower surface of the end cover of the pin shaft sensor.

6. The railway engineering vehicle hand brake apparatus of claim 4, wherein: The depth of the positioning hole is equal to the height of the bump on the pin shaft sensor.

7. The railway engineering vehicle hand brake apparatus of claim 4, wherein: The mounting pad is in a U shape;The mounting pad and the U-shaped mounting seat are fixedly embedded through locking columns, and the hole position and the arc edge of the mounting pad are aligned with the U-shaped mounting seat.

8. The railway engineering vehicle hand brake apparatus of claim 7, wherein: The direction of the arrow on the upper surface of the end cover of the pin shaft sensor is consistent with the direction of the tangential tension of the contact point of the steel wire rope and the pulley.

9. The railway engineering vehicle hand brake apparatus of claim 1, wherein: The state detection mechanism further includes a driving display screen connected with the control host module for displaying the state of the hand brake machine and alarm information.

10. The railway engineering vehicle hand brake apparatus of claim 9, wherein: Ethernet communication is adopted between the control host module and the driving display screen and the analog input module.

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