CN115649225A - Railway electric intelligent anti-slip fastener - Google Patents

Abstract

The invention discloses an electric intelligent anti-slip fastening device for railways, comprising: a hook, a tension sensor, a thrust bearing, a lead screw, a sensor box cover, a sensor box body, a nut, a tension hook, a bearing, a first steering gear, a second Two steering gear, steering gear box, sleeve, first driving gear, second driving gear, driven gear, battery, steering gear box cover, circuit board, transparent button switch, indicator light; the right end of the lead screw is fixedly connected There is a driven gear; the tension hook is hinged with the nut; the circuit board is respectively connected with the button switch, the indicator light, the battery, the first steering gear, the second steering gear and the tension sensor; the circuit board includes a buzzer, a communication expansion interface, A power management module, a pulling force acquisition module, a first steering gear control module, a second steering gear control module and a microprocessor. The invention has the function of electric installation and removal, reduces the labor intensity of manual installation and removal of the intelligent anti-slip fastener, improves operation efficiency, and reduces the safety risk of on-site operation in railway stations.

Description

An Electric Intelligent Anti-slip Fastener for Railways

technical field

The invention relates to the anti-slip field of railway vehicles, in particular to an electric intelligent anti-slip fastener for railways.

Background technique

The purpose of the anti-slip fastener is to tighten the brake chain of the human brake of the vehicle, so that the brake shoes are close to the wheel tread, so as to prevent the vehicles staying on the line from slipping. Anti-slip fasteners play a vital role in preventing safety accidents such as derailment, squeezed switches and collisions caused by vehicle slippage.

At present, the operation of installing and removing the fastener is to manually use the crank to rotate the fastener screw in the forward and reverse directions, so as to realize the tensioning or loosening of the brake chain of the vehicle manual brake. The railway industry standard stipulates that the axial tension generated by the fastener on the human brake during the anti-slip process should be within a range. Operators judge whether the tension of traditional fasteners meets the standard through experience, and there is a possibility of anti-slip failure. The smart fastener can remind the on-site workers whether the tension is up to the standard, and provide a remote monitoring function for the tension value, which is convenient for the operators to remotely find the abnormality of the tension and solve it on site. However, there is still the time-consuming and laborious problem of manual installation and removal of the fasteners, and it cannot be automatically processed after the abnormal tension of the brake chain of the manual brake is found. Yi risk.

Chinese invention patent publication CN109724737A, CN112776850A, CN112504528A, CN107621323A and utility model patent disclosure CN207850578U all disclose a kind of intelligent fastening device, have realized on-the-spot pulling force reaching standard prompt and pulling force value remote monitoring function, but all do not realize the fastening device Electric placement and removal, and automatic adjustment of the pulling force value have not been realized.

Contents of the invention

The purpose of the present invention is to provide an electric intelligent anti-slip fastening device for railways, which realizes the electric installation and removal of the anti-slip fastening device, saves manpower, and can automatically monitor and adjust the tension value within a specified range, which is safe and convenient to use.

An electric intelligent anti-slip fastener for railways, comprising: a hook, a tension sensor, a thrust bearing, a lead screw, a sensor box cover, a sensor box body, a nut, a tension hook, a bearing, a first steering gear, a second steering gear, Steering gear box, sleeve, first driving gear, second driving gear, driven gear, battery, steering gear box cover, circuit board, transparent button switch, indicator light;

The hook, tension sensor, thrust bearing and lead screw are fixedly connected in sequence;

The tension sensor is located in the sensor box body, and the sensor box cover is connected with the sensor box body;

The nut is screwed to the lead screw, and a driven gear is fixedly connected to the right end of the lead screw; the tension hook is hinged to the nut;

The left end of the sleeve is fixedly connected to the right end of the sensor box, the right end of the sleeve is fixedly connected to the left end of the steering gear box, and the sleeve is sleeved on the thrust bearing, screw and nut In addition, the front and rear walls of the sleeve are respectively provided with a long hole, and the tension hook passes through a long hole of the sleeve;

The first steering gear, the second steering gear, the battery and the circuit board are installed in the steering gear box body, the steering gear box body is fixedly connected with the lead screw through the bearing, and the steering gear box cover is installed On the steering gear box; the bearing is coaxial with the thrust bearing; the button switch is installed on the outer wall of the steering gear box, and the indicator light is installed behind the button switch;

The output shaft of the first steering gear is fixedly connected with the first driving gear; the output shaft of the second steering gear is fixedly connected with the second driving gear; the first driving gear and the second driving gear are respectively Meshing with the driven gear, the central axes of the first driving gear, the second driving gear and the driven gear are located in the same plane and parallel to each other;

The circuit board is respectively connected with the button switch, the indicator light, the battery, the first steering gear, the second steering gear and the tension sensor; the circuit board includes a buzzer, a communication expansion interface, a power management module, and a tension acquisition module , a first steering gear control module, a second steering gear control module and a microprocessor.

The buzzer is connected with the microprocessor, and is used for sounding to prompt the working state of the fastener and alarm.

The communication expansion interface is connected with the microprocessor, and is used for connecting an external wireless communication module, sending working status and anti-slip abnormal alarm information to the ground monitoring center, and receiving tightening and loosening control commands from the ground monitoring center.

The power management module is respectively connected with the microprocessor, the first steering gear and the second steering gear.

The tension acquisition module is connected with the microprocessor and the tension sensor respectively.

The first steering gear control module is respectively connected with the microprocessor and the first steering gear; the second steering gear control module is respectively connected with the microprocessor and the second steering gear.

The microprocessor adopts STM32L151RCT6 chip or STM32F767IGT6 chip.

The microprocessor is respectively connected with the button switch and the indicator light.

Beneficial effects of the present invention:

The railway electric intelligent anti-slip fastening device of the present invention adopts the above-mentioned technical scheme, drives the lead screw to rotate through the first steering gear and the second steering gear to tighten and loosen the brake chain of the manual brake, and has the functions of electric placement and removal , reduce the labor intensity of manual placement and removal of intelligent anti-slip fasteners, and improve operating efficiency; when the tension value is detected to exceed the specified range, it can be adjusted in time to solve the problem of untimely handling of abnormal tension and reduce on-site operations in railway stations. Security Risk.

Description of drawings

Fig. 1 is a schematic diagram of the disassembled structure of the railway electric intelligent anti-slip fastener of the present invention.

Fig. 2 is a schematic structural diagram of the front view of the railway electric intelligent anti-slip fastener of the present invention.

Fig. 3 is a right-view structure diagram of the railway electric intelligent anti-slip fastener of the present invention (the cover of the steering gear box is not shown).

Fig. 4 is a schematic diagram of the circuit board in the railway electric intelligent anti-slip fastener of the present invention.

Reference signs: 1—hook; 2—tension sensor; 3—sensor box cover; 4—sensor box; 5—thrust bearing; 6—leading screw; 7—tension hook; 8—bearing; 9—first rudder Machine; 10—steering gear box; 11—first driving gear; 12—battery; 13—steering gear box cover; 14—nut; 15—second steering gear; 16—sleeve; 17—second driving gear; 18—driven gear; 19—circuit board; 20—button switch; 21—indicator light; 22—long hole; 191—buzzer; 192—communication expansion interface; 193—power management module; 194—pulse force acquisition module; 195—the first steering gear control module; 196—the second steering gear control module; 197—the microprocessor.

Detailed ways

In order to make the object, technical solution and advantages of the present invention clearer, the implementation manner of the present invention will be further described in detail below in conjunction with the accompanying drawings.

As shown in Figure 1, Figure 2, Figure 3 and Figure 4, the railway electric intelligent anti-slip fastener of the present invention includes: a hook 1, a tension sensor 2, a thrust bearing 5, a lead screw 6, a sensor box cover 3, and a sensor box Body 4, nut 14, tension hook 7, bearing 8, first steering gear 9, second steering gear 15, steering gear box body 10, sleeve 16, first driving gear 11, second driving gear 17, driven Gear 18, battery 12, steering gear box cover 13, circuit board 19, transparent button switch 20, indicator light 21;

The hook 1, the tension sensor 2, the thrust bearing 5 and the lead screw 6 are fixedly connected in turn; the hook 1 is used to hook the brake chain of the manual brake;

The tension sensor 2 is located in the sensor box body 4, and the sensor box cover 3 is connected to the sensor box body 4; the tension sensor 2 is used for real-time measurement of the axial tension value of the manpower brake fastener .

Described nut 14 is screwed with described lead screw 6, and the right end of described lead screw 6 is fixedly connected with a driven gear 18; Described tension hook 7 is hinged with described nut 14, and described tension hook 7 is used for When hooking the position of the vehicle brake lever bearing bracket, etc., the position of the tension hook 7 relative to the vehicle remains unchanged; when the screw 6 rotates, a shaft occurs between the nut 14 and the screw 6 To move, drive the tightening and loosening of the whole mechanism.

The left end of the sleeve 16 is fixedly connected with the right end of the sensor box 4, the right end of the sleeve 16 is fixedly connected with the left end of the steering gear box 10, and the sleeve 16 is sleeved on the thrust bearing 5. Outside the lead screw 6 and the nut 14, the front and rear walls of the sleeve 16 are respectively provided with a long hole, and the tension hook 7 passes through a long hole 22 of the sleeve, and the sleeve is the same as the 16 and the puller. The tight hook 7 cooperates to limit the invalid rotation of the whole mechanism;

The first steering gear 9, the second steering gear 15, the battery 12 and the circuit board 19 are installed in the steering gear box 10, and the steering gear box 10 is fixedly connected with the lead screw 6 through the bearing , the steering gear box cover 13 is installed on the steering gear box body 10; the bearing 8 is coaxial with the thrust bearing 5; the button switch 20 is installed on the outer wall of the steering gear box body 10, The indicator light 21 is installed on the back of the button switch 20; the indicator light 21 is used to display the working state and alarm signal of the fastener;

The output shaft of the first steering gear 9 is fixedly connected with the first driving gear 11; the output shaft of the second steering gear 15 is fixedly connected with the second driving gear 17; the first driving gear 11 and The second driving gear 17 is meshed with the driven gear 18 respectively, and the central axes of the first driving gear 11, the second driving gear 17 and the driven gear 18 are located in the same plane and are parallel to each other; Engine 9 and second steering gear 15 drive driven gear 18 and leading screw 6 to rotate through first driving gear 11 and second driving gear 17, and can guarantee that driven gear both sides are balanced in force.

The circuit board 19 is respectively connected with the push button switch 20, the indicator light 21, the battery 12, the first steering gear 9, the second steering gear 15 and the tension sensor 2; the circuit board 19 includes a buzzer 191, a communication extension interface 192 , power management module 193 , tension acquisition module 194 , first steering gear control module 195 , second steering gear control module 196 and microprocessor 197 . The first steering gear 9 and the second steering gear 15 respectively receive the control signals of the first steering gear control module 195 and the second steering gear control module 196 and control the output shaft of the first steering gear 9 and the output shaft of the second steering gear 15 Rotate clockwise or counterclockwise at the same time. The first steering gear 9 and the second steering gear 15 are high-torque digital steering gears of the SRC-T200 model, and the power supply voltage is 12-24V. torque. The button switch 20 is used to send a long press signal to the microprocessor 197 , and the button switch 20 is transparent for passing through the light of the indicator light 21 .

The buzzer 191 is connected with the microprocessor 197, and is used for sounding to prompt the working state of the fastener and alarm.

The communication extension interface 192 is connected with the microprocessor 197, and is used for connecting an external wireless communication module, sending working status and anti-slip abnormal alarm information to the ground monitoring center, and receiving tightening and loosening control commands from the ground monitoring center. The anti-slip abnormal alarm information means that the tension value exceeds the specified range during the anti-slip process.

The power management module 193 is respectively connected with the microprocessor 197 , the first steering gear 9 and the second steering gear 15 to supply power for the microprocessor 197 , the first steering gear 9 and the second steering gear 15 .

The tension acquisition module 194 is connected to the microprocessor 197 and the tension sensor 2 respectively. The tension collection module 194 is used to collect the tension value of the tension sensor 2 and transmit it to the microprocessor 197 . The microprocessor 197 collects the tension value of the tension sensor 2, and when the tension value exceeds the prescribed range under the anti-slip state, the first steering gear 9 and the second steering gear 9 are automatically controlled by the first steering gear control module 195 and the second steering gear control module 196. The steering gear 15 continues to rotate clockwise and counterclockwise at the same time, so that the pulling force value is in a specified range.

The first steering gear control module 195 is respectively connected with the microprocessor 197 and the first steering gear 9, and is used to send command signals for clockwise continuous rotation, stop rotation, and counterclockwise continuous rotation to the first steering gear 9, It can be a PWM pulse signal; the second steering gear control module 196 is respectively connected with the microprocessor 197 and the second steering gear 15, and is used to send clockwise continuous rotation, stop rotation, counterclockwise rotation to the second steering gear 15. The command signal for continuous rotation can be a PWM pulse signal.

The microprocessor 197 adopts STM32L151RCT6 chip or STM32F767IGT6 chip.

Described microprocessor 197 is connected with described button switch 20 and indicator light 21 respectively, and microprocessor 197 receives the signal of button switch 20, controls power management module 193 to first steering gear 9, second steering gear 15 and microcomputer. Processor 197 provides power.

Technical principle of the present invention:

1. When the fastener is in the off state, long press the button switch to start the operation, and the fastener enters the power-on state. The microprocessor controls the first steering gear and the second steering gear to continuously rotate clockwise through the first steering gear control module and the second steering gear control module, so that the tensioning hook moves toward the hook direction, thereby tightening the manual brake brake chain.

2. During the tensioning process, the microprocessor controls the indicator light to flash yellow, and controls the buzzer to continuously emit the sound of "drip, beep". At the same time, the microprocessor regularly collects the tension value of the tension sensor with a period of 200ms. When it is judged that the tension value is greater than the lower limit of the specified interval by 10KN, the first steering gear and the second steering gear control module are immediately sent to the first steering gear and the second steering gear. The second steering gear issues a stop rotation command. The microprocessor controls the buzzer to sound a long "beep", and the fastener enters the anti-slip state.

3. When the fastener is in the anti-slip state, the microprocessor control indicator light is always green, and at the same time, the microprocessor regularly collects the tension value of the tension sensor with a period of 20 seconds.

When it is judged that the pulling force value is less than the lower limit of the specified interval of 10KN, the microprocessor controls the indicator light to flash red, and controls the buzzer to continuously emit the sound of "drip, beep" to alarm the anti-slip abnormality. The microprocessor immediately controls the No. 1 steering gear and the No. 2 steering gear to rotate clockwise through the first steering gear control module and the second steering gear control module, so that the tensioning hook moves toward the hook direction, thereby tightening the manual brake brake chain. During the tensioning process, the microprocessor controls the indicator light to flash yellow, and controls the buzzer to continuously emit the sound of "drip, beep". At the same time, the microprocessor regularly collects the tension value of the tension sensor with a period of 200 ms. When it is judged that the tension value is greater than the lower limit of the specified interval by 10KN, the first steering gear and the second steering gear control module are immediately sent to the first steering gear and the second steering gear. The second steering gear issues a stop rotation command. The microprocessor controls the indicator light to be green and always on, and controls the buzzer to beep for a long time, and the microprocessor continues to regularly collect the tension value of the tension sensor with a period of 20 seconds;

When it is judged that the pulling force value is greater than the upper limit of the specified interval of 14.7KN, the microprocessor controls the indicator light to flash red, and controls the buzzer to continuously emit the sound of "drip, beep" to alarm the anti-slip abnormality. The microprocessor immediately controls No. 1 steering gear and No. 2 steering gear to rotate counterclockwise through the first steering gear control module and the second steering gear control module, so that the tension hook is far away from the hook, thereby releasing the brake chain of the manual brake. During the release process, the microprocessor controls the indicator light to flash blue, and controls the buzzer to make a continuous sound of "drip, beep". At the same time, the microprocessor regularly collects the tension value of the tension sensor with a cycle of 200ms. When it is judged that the tension value is less than the upper limit of the specified interval of 14.7KN, the first steering gear and the second steering gear control module are sent to the first steering gear and the second steering gear control module immediately. The second steering gear issues a stop rotation command. The microprocessor controls the indicator light to be green and always on, and controls the buzzer to beep for a long time. The microprocessor continues to regularly collect the tension value of the tension sensor with a period of 20 seconds.

4. When the fastener is turned on, press the button switch for a long time, and the microprocessor will judge the tension value.

When the tension value is greater than 0.1KN, the microprocessor controls the indicator light to flash in blue, and controls the buzzer to continuously emit the sound of "drip, beep". The microprocessor immediately controls the first steering gear and the second steering gear to rotate counterclockwise through the first steering gear control module and the second steering gear control module, so that the tension hook is far away from the hook, thereby releasing the brake chain of the manual brake. During the loosening process, the microprocessor regularly collects the tension value of the tension sensor with a period of 200ms. When it is judged that the tension value is less than 0.1KN, the first steering gear and the second steering gear control module are sent to the first steering gear and the second steering gear control module immediately. The second steering gear issues a stop rotation command. The microprocessor controls the buzzer to make a long sound of "beep", and controls to turn off the indicator light, and the fastener enters the shutdown state.

When the tension value is less than 0.1KN, the microprocessor controls the buzzer to make a long beep, and controls to turn off the indicator light, and the fastener enters the shutdown state.

If the wireless communication module is externally connected through the communication expansion interface, the microprocessor can also send the tension value of the fastener, the status of the first steering gear and the second steering gear, and other working status information and anti-slip abnormal alarms to the ground monitoring center through the wireless network. information. The microprocessor can also receive the tightening and loosening control commands of the ground monitoring center through the wireless communication module, and control the first steering gear and the second steering gear simultaneously clockwise and Turn counterclockwise to control the tightener to complete the tightening and loosening action.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection of the present invention. within range.

Claims (8)

1. A railway electric intelligent anti-slip fastener, characterized in that it comprises: a hook, a tension sensor, a thrust bearing, a leading screw, a sensor box cover, a sensor box body, a nut, a tension hook, a bearing, and a first steering gear , second steering gear, steering gear box, sleeve, first driving gear, second driving gear, driven gear, battery, steering gear box cover, circuit board, transparent button switch, indicator light; The hook, tension sensor, thrust bearing and lead screw are fixedly connected in sequence; The tension sensor is located in the sensor box body, and the sensor box cover is connected with the sensor box body; The nut is screwed to the lead screw, and a driven gear is fixedly connected to the right end of the lead screw; the tension hook is hinged to the nut; The left end of the sleeve is fixedly connected to the right end of the sensor box, the right end of the sleeve is fixedly connected to the left end of the steering gear box, and the sleeve is sleeved on the thrust bearing, screw and nut In addition, the front and rear walls of the sleeve are respectively provided with a long hole, and the tension hook passes through a long hole of the sleeve; The first steering gear, the second steering gear, the battery and the circuit board are installed in the steering gear box body, the steering gear box body is fixedly connected with the lead screw through the bearing, and the steering gear box cover is installed On the steering gear box; the bearing is coaxial with the thrust bearing; the button switch is installed on the outer wall of the steering gear box, and the indicator light is installed behind the button switch; The output shaft of the first steering gear is fixedly connected with the first driving gear; the output shaft of the second steering gear is fixedly connected with the second driving gear; the first driving gear and the second driving gear are respectively Meshing with the driven gear, the central axes of the first driving gear, the second driving gear and the driven gear are located in the same plane and parallel to each other; The circuit board is respectively connected with the button switch, the indicator light, the battery, the first steering gear, the second steering gear and the tension sensor; the circuit board includes a buzzer, a communication expansion interface, a power management module, and a tension acquisition module , a first steering gear control module, a second steering gear control module and a microprocessor. 2. The railway electric intelligent anti-slip fastening device according to claim 1, wherein the buzzer is connected to a microprocessor for sounding to prompt the working state of the fastening device and to give an alarm. 3. The railway electric intelligent anti-slip fastener according to claim 1, wherein the communication extension interface is connected with the microprocessor for connecting an external wireless communication module to send working status and Anti-slip abnormal alarm information, and receive tightening and loosening control commands from the ground monitoring center. 4. The railway electric intelligent anti-slip fastener according to claim 1, wherein the power management module is connected to the microprocessor, the first steering gear and the second steering gear respectively. 5. The railway electric intelligent anti-slip fastener according to claim 1, characterized in that, the tension acquisition module is connected to the microprocessor and the tension sensor respectively. 6. The railway electric intelligent anti-slip fastener according to claim 1, wherein the first steering gear control module is connected with the microprocessor and the first steering gear respectively; the second steering gear The control module is respectively connected with the microprocessor and the second steering gear. 7. The railway electric intelligent anti-slip fastening device according to claim 1, characterized in that, said microprocessor adopts STM32L151RCT6 chip or STM32F767IGT6 chip. 8. The railway electric intelligent anti-slip fastener according to claim 1, wherein the microprocessor is connected to the button switch and the indicator light respectively.

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