A locomotive handbrake control device

Abstract

This utility model discloses a locomotive handbrake control device, including a handbrake turntable structure, a worm gear transmission mechanism, a lead screw mechanism, a sensor assembly, and a handbrake transmission pull plate mechanism. The worm gear transmission mechanism includes a transmission box, in which a worm and a worm wheel are arranged for meshing transmission. The lead screw mechanism includes a rotating rod and a lead screw coaxially fixed together. The upper end of the rotating rod passes through the transmission box and is connected to the worm gear shaft. The lower end of the rotating rod is fixed to the lead screw, and a lead screw nut is mounted on the lead screw. The handbrake transmission pull plate mechanism is welded to the outer wall of the lead screw nut. The sensor assembly includes a first-stage position sensor and a last-stage position sensor, which are arranged vertically and horizontally and connected to the outer wall of the transmission box via a bracket. This device achieves precise control and timely feedback of handbrake operation through a combination of mechanical transmission and position sensors.

Description

Technical Field

[0001] This utility model relates to the technical field of rail transit braking control equipment, and in particular to a locomotive handbrake control device. Background Technology

[0002] When using the locomotive handbrake, the driver must first rotate the handle from the "brake release" position to the "brake tighten" position to apply braking force. To release the brakes, the driver must rotate the handle back to the "brake release" position. The following points should be noted during use:

[0003] Operating force: Avoid applying excessive braking force to prevent damage to the locomotive brakes.

[0004] Inspection: Before use, check whether the brake is working properly to ensure that it can work normally.

[0005] Maintenance: If the locomotive brakes malfunction, they need to be repaired or replaced promptly.

[0006] In summary, the locomotive handbrake is an indispensable and important component of the locomotive. Drivers need to master its usage and pay attention to operating procedures to ensure driving safety.

[0007] Currently, most handbrakes used in locomotive braking systems rely on direct driver operation, using mechanical levers or electric control systems to apply the brakes. However, traditional handbrake systems can experience problems such as slow operation and untimely feedback, increasing operational risks. Furthermore, due to the lack of precise position signal feedback, drivers cannot easily monitor the handbrake's status in real time, potentially leading to incomplete braking or improper operation. Utility Model Content

[0008] The purpose of this invention is to provide a locomotive handbrake control device that addresses the above-mentioned situation. This device achieves precise control and timely feedback of handbrake operation through a combination of mechanical transmission and position sensors.

[0009] The specific solution of this utility model is: a locomotive handbrake control device, including a handbrake turntable structure, a worm gear transmission mechanism, a lead screw mechanism, a sensor assembly, and a handbrake transmission pull plate mechanism; the worm gear transmission mechanism includes a transmission box, in which a meshing worm and a worm wheel are arranged, wherein the worm is transversely mounted on the side wall of the transmission box and one end extends outward to connect to the handbrake turntable structure; the lead screw mechanism includes a rotating rod and a lead screw coaxially fixed together, wherein the rotating rod is mounted on the bottom surface of the transmission box through a bearing, and the upper end of the rotating rod extends into the transmission box. It is connected to the worm gear shaft, and the lower end of the rotating rod is fixed to the lead screw. The lead screw is equipped with a lead screw nut, and a hand brake transmission pull plate mechanism is welded to the outer wall of the lead screw nut. The hand brake transmission pull plate mechanism is used to connect the brake. The sensor assembly includes a first-stage position sensor and a last-stage position sensor. The first-stage position sensor and the last-stage position sensor are arranged vertically and horizontally and connected to the outer wall of the transmission box through a bracket. The first-stage position sensor and the last-stage position sensor respectively detect the first and last positions of the lead screw nut movement and transmit the detection signals to the monitoring device installed in the cab.

[0010] Furthermore, the handbrake turntable structure described in this utility model includes a rotating plate, which is disposed outside the transmission box. The middle position of the rotating plate is fixed to one end of the worm gear. The rotation of the rotating plate drives the worm gear to rotate together. Each end of the rotating plate is provided with a handle.

[0011] Furthermore, the handbrake transmission pull plate mechanism described in this utility model consists of two transmission pull plates, which are welded to the outer wall of the lead screw nut respectively. The lower ends of the two transmission pull plates are connected as one unit and are connected to the brake together.

[0012] Furthermore, the monitoring device described in this utility model includes an operator console display, a warning light, or an audible and visual alarm.

[0013] Furthermore, both the first-segment position sensor and the last-segment position sensor described in this utility model are position sensors used to align and detect whether the lead screw nut is in place.

[0014] Furthermore, the bracket described in this utility model is made by assembling and welding vertical plates and horizontal plates.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. Precise control: Through the combination of mechanical transmission and position sensors, the driver can control the handbrake system more precisely, reducing the possibility of misoperation.

[0017] 2. Real-time feedback: The signal feedback provided by the position sensor allows the driver to understand the status of the handbrake system in real time, improving the safety of operation.

[0018] 3. Stability and reliability: The use of worm gear mechanisms increases the stability of the system, reduces the failure rate caused by mechanical wear, and extends the service life of the system. Attached Figure Description

[0019] Figure 1 This is a side view structural diagram of this utility model;

[0020] Figure 2 This is a schematic diagram of the structure from another side view of this utility model;

[0021] Figure 3 This is a schematic diagram of the handbrake turntable structure and the worm gear transmission mechanism in this utility model.

[0022] In the diagram: 1—transmission box, 2—rotating plate, 3—handle, 4—lead screw, 5—transmission pull plate, 6—bracket, 7—end position sensor, 8—lead screw nut, 9—first position sensor, 10—worm gear, 11—worm wheel, 12—rotating rod. Detailed Implementation

[0023] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model. In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," etc., indicating orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. They are only for the convenience of describing this utility model or simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed or operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0024] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," and "connect" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0025] See Figures 1-3 This utility model relates to a locomotive handbrake control device, comprising a handbrake turntable structure, a worm gear transmission mechanism, a lead screw mechanism, a sensor assembly, and a handbrake transmission pull plate mechanism. The worm gear transmission mechanism includes a transmission box 1, within which a meshing worm 10 and a worm wheel 11 are arranged. The worm is transversely mounted on the side wall of the transmission box, with one end extending outwards to connect to the handbrake turntable structure. Further, the handbrake turntable structure includes a rotating plate 2, located outside the transmission box. The middle position of the rotating plate is fixed to one end of the worm, and the rotation of the rotating plate causes the worm to rotate. Each end of the rotating plate has a handle 3. The lead screw mechanism includes a rotating rod 12 and a lead screw 4 coaxially fixed together. The rotating rod is mounted on the bottom surface of the transmission box via a bearing, and its upper end passes through... The transmission box is connected to the worm gear shaft. The lower end of the rotating rod is fixed to the lead screw, and a lead screw nut 8 is mounted on the lead screw. A hand brake transmission pull plate mechanism is welded to the outer wall of the lead screw nut. The hand brake transmission pull plate mechanism is used to connect the brake. The sensor assembly includes a first-stage position sensor 9 and a last-stage position sensor 7. The first-stage position sensor and the last-stage position sensor are arranged vertically and vertically and connected to the outer wall of the transmission box through a bracket 6. The first-stage position sensor and the last-stage position sensor respectively detect the first and last positions of the lead screw nut 8 and transmit the detection signals to the monitoring device installed in the cab. Furthermore, the first-stage position sensor and the last-stage position sensor in this utility model are both position sensors used to align and detect whether the lead screw nut is in position. Furthermore, the monitoring device in this utility model includes an operating console display, a warning light, or an audible and visual alarm. Furthermore, the handbrake transmission pull plate mechanism described in this utility model consists of two transmission pull plates 5, which are welded to the outer wall of the lead screw nut respectively. The lower ends of the two transmission pull plates are connected as one unit and jointly connected to the brake. Furthermore, the bracket described in this utility model is assembled and welded from vertical plates and horizontal plates.

[0026] In this embodiment of the invention, the handbrake turntable structure located in the driver's cab is connected to a worm gear transmission mechanism. When the driver rotates the turntable clockwise or counterclockwise, the worm gear transmits the rotational motion of the turntable to the lead screw, causing the lead screw to rotate in the corresponding direction. The rotation of the lead screw further drives the lead screw nut to move up and down, and the up and down movement of the lead screw nut realizes the braking or releasing operation.

[0027] At the upper and lower limit positions of the lead screw nut, a first-stage position sensor and a last-stage position sensor are installed respectively. When the lead screw nut reaches the upper and lower limit positions respectively, the sensors detect the signal and transmit it to the control panel in the cab. The display or warning light on the control panel will prompt the driver whether the current operation is in the braking or releasing state based on the sensor signal. The driver can then clearly know the current braking state based on the signal indicated by the display or warning light, preventing misoperation.

[0028] This invention achieves the following: Precise control: Through the combination of mechanical transmission and position sensors, the driver can more precisely control the handbrake system, reducing the possibility of misoperation. Real-time feedback: The signal feedback provided by the position sensor allows the driver to understand the status of the handbrake system in real time, improving operational safety. Stability and reliability: The use of a worm gear mechanism increases the stability of the system, reduces the failure rate caused by mechanical wear, and extends the service life of the system.

Claims

1. A locomotive hand brake operating device characterized by: The system includes a handbrake turntable structure, a worm gear transmission mechanism, a lead screw mechanism, a sensor assembly, and a handbrake transmission pull plate mechanism. The worm gear transmission mechanism includes a transmission box containing a meshing worm and worm wheel. The worm is laterally mounted on the side wall of the transmission box, with one end extending outwards to connect to the handbrake turntable structure. The lead screw mechanism includes a rotating rod and a lead screw coaxially fixed together. The rotating rod is mounted on the bottom surface of the transmission box via a bearing, and its upper end extends into the transmission box and connects to the worm gear shaft. The lower end of the rotating rod is fixed to the lead screw, and a lead screw nut is mounted on the lead screw. A handbrake transmission pull plate mechanism is welded to the outer wall of the lead screw nut. The handbrake transmission pull plate mechanism is used to connect the brake. The sensor assembly includes a first-stage position sensor and a last-stage position sensor. The first-stage position sensor and the last-stage position sensor are arranged vertically and horizontally and connected to the outer wall of the transmission box through a bracket. The first-stage position sensor and the last-stage position sensor respectively detect the first and last positions of the lead screw nut movement and transmit the detection signals to the monitoring device installed in the driver's cab.

2. A hand brake operating device for a rolling stock according to claim 1, characterized in that: The handbrake turntable structure includes a rotating plate, which is located outside the transmission box. The middle position of the rotating plate is fixed to one end of the worm gear. The rotation of the rotating plate drives the worm gear to rotate together. Each end of the rotating plate is provided with a handle.

3. A hand brake operating device for a locomotive as defined in claim 1, wherein: The handbrake transmission pull plate mechanism consists of two transmission pull plates, which are welded to the outer wall of the lead screw nut respectively. The lower ends of the two transmission pull plates are connected as one unit and are connected to the brake together.

4. A hand brake operating device for a rolling stock according to claim 1, wherein: The monitoring device includes an operator console display, warning lights, or an audible and visual alarm.

5. A hand brake operating device for a rolling stock according to claim 1, wherein: Both the first-segment position sensor and the last-segment position sensor are position sensors used to align and detect whether the lead screw nut is in place.

6. A hand brake operating device for a rolling stock according to claim 1, wherein: The support frame is assembled and welded from vertical and horizontal plates.

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