CN213921025U - Rail trolley guide structure - Google Patents
Rail trolley guide structure Download PDFInfo
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- CN213921025U CN213921025U CN202022396352.7U CN202022396352U CN213921025U CN 213921025 U CN213921025 U CN 213921025U CN 202022396352 U CN202022396352 U CN 202022396352U CN 213921025 U CN213921025 U CN 213921025U
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Abstract
The application discloses small rail car guide structure belongs to track traffic technical field, contains: a steering motor, a bracket and a speed reducer; a reversing shaft is vertically arranged on the speed reducer, a horizontally arranged reversing plate is fixed on the reversing shaft, and a force transmission arm is arranged below the reversing plate and connected with the reversing shaft; one end of the transmission arm is connected with one end of the steering pressure connecting rod through a pin shaft, and the steering pressure connecting rod is connected with a fixed arm pin shaft of the guide wheel; the tension arm is arranged below the transmission arm and connected with the reversing shaft; the tension arm is linked with the reversing plate, the transmission arm and the tension arm; the tension arm is connected with a middle shaft of the frame through a tension device; the reversing assembly comprises a first state and a second state; in a first state: the first guide wheel is abutted to the convex edge of the track on the same side, and when the steering motor applies steering force, the steering assembly is switched from the first state to the second state. The application realizes that the steering assembly can realize reversing by matching with a unilateral road edge.
Description
Technical Field
The application relates to the technical field of rail transit, especially, relate to a small rail car guide structure.
Background
The unmanned driving of the special road right is one of the unmanned driving, and the steering and the turnout steering control are two key technologies. The kerb guide is a guide scheme of the special road right unmanned vehicle.
The curbstone direction adopts the guide pulley contact protruding edge stone direction, and the direction function is realized to both sides way and leading wheel combined action. The convex edge is required to be built and installed with high precision, and the guide wheel is required to be installed with high precision. When the vehicle passes through the turnout, only one side of the convex edge can be used, and the vehicle can be ensured to pass through the turnout smoothly by means of other structures or control systems.
The convex edge stones on two sides and the guide wheels on two sides act together to realize the guide function, and the requirements on the relative position precision of the convex edge stones and the installation precision of the guide wheels are high. In addition, the convex edges on the two sides are used for guiding, and the vehicle is easy to swing left and right. When the vehicle passes through the turnout, because the vehicle guide wheels cannot contact the convex edges on the two sides at the same time, an additional mechanism is needed to ensure that the vehicle passes through the turnout correctly, and the cost is higher.
Disclosure of Invention
In view of this, the technical problem to be solved in the present application is to provide a small rail car guide structure, so as to solve the problems of high requirement for building raised edge stones, complex guide structure, high control cost, and easy vehicle swing in the existing rail transit.
Above-mentioned technical problem is solved in this application, provides a small rail car guide structure, includes:
the rail is provided with two convex edges at two sides and is used for guiding the running direction of the trolley running along the rail;
the trolley is used for bearing passengers and comprises a carriage and a walking device arranged below the carriage;
the walking device comprises a frame, a plurality of walking wheels arranged below the frame, and a first guide wheel and a second guide wheel which are respectively arranged on two sides of the frame, wherein the first guide wheel and the second guide wheel are respectively linked with the walking wheels on the same side;
the frame is also provided with a steering assembly, and the steering assembly comprises a support, a speed reducer and a steering motor; the steering motor is connected with a speed reducer, and the bracket is arranged in the middle of the frame and used for fixing the speed reducer; the speed reducer is vertically provided with a reversing shaft, a horizontally arranged reversing plate is fixed on the reversing shaft, the reversing plate is driven by the speed reducer to rotate back and forth, and a first arc-shaped groove is formed in the reversing plate;
the reversing shaft is connected with the reversing shaft through a transmission arm; one end of the transmission arm is a sector comprising a second arc-shaped groove, the other end of the transmission arm is connected with one end of a steering pressure connecting rod through a pin shaft, and the other end of the steering pressure connecting rod is connected with a fixed arm pin shaft of one of the guide wheels;
the reversing shaft is connected with the reversing shaft through a pull arm; one end of the tension arm is fixedly provided with an alignment pin, and the alignment pin penetrates through the second arc-shaped groove and the first arc-shaped groove to enable the reversing plate, the force transmission arm and the tension arm to form linkage;
the other end of the tension arm is connected with a tension device, and the tension device is connected with a middle shaft of the frame;
the reversing assembly comprises a first state and a second state;
in a first state: the first guide wheel is abutted against the convex edge of the track on the same side, the force transmission arm and the steering pressure connecting rod are positioned on one side, and the tension device tensions the tension arm to enable the force transmission arm to apply continuous tension to the steering pressure connecting rod;
when a steering motor applies steering force, the speed reducer drives the steering shaft to rotate to enable the steering plate to steer to the other side, the steering plate drives the force transmission arm to rotate under the action of the apposition pin, the force transmission arm and the steering pressure rod are located on different sides, the force transmission arm drives the steering pressure connecting rod to displace, so that the first guide wheel swings and is separated from the convex edge of the track until the second guide wheel abuts against the convex edge of the track on the same side, at the moment, the steering assembly completes switching from the first state to the second state, and the tension device tensions the tension arm to enable the force transmission arm to apply continuous thrust to the steering pressure connecting rod until next steering.
The rail trolley guide structure that this application was realized adopts the protruding edge direction technique of unilateral rail, has reduced the road and has built the required precision, has reduced leading wheel installation required precision, when passing through the switch, selects to advance along one side protruding edge, can pass through the switch smoothly, need not increase professional equipment at the switch to reduce system construction cost increases the system reliability.
Drawings
FIG. 1 is a schematic view of an application of the rail car provided in the present application;
FIG. 2 is a schematic view of another application of the rail car provided herein;
FIG. 3 is a perspective view of a guideway structure of a rail car according to an embodiment of the present application;
FIG. 4 is an exploded view of the steering assembly of one embodiment of the present application;
FIG. 5 is an assembled top view of the steering assembly of the embodiment of FIG. 4;
FIG. 6 is a cross-sectional view of the steering assembly shown in FIG. 5;
FIG. 7 is a schematic view of the railcar guide structure of the present application in a first state;
fig. 8 is a schematic view of the railcar guiding structure of the present application in a second state.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present application clearer and clearer, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
The application provides a small rail car guide structure, includes:
the rail is provided with two convex edges at two sides and is used for guiding the running direction of the trolley running along the rail;
the trolley is used for bearing passengers and comprises a carriage and a walking device arranged below the carriage;
the walking device comprises a frame, a plurality of walking wheels arranged below the frame, and a first guide wheel and a second guide wheel which are respectively arranged on two sides of the frame, wherein the first guide wheel and the second guide wheel are respectively linked with the walking wheels on the same side;
the frame is also provided with a steering assembly, and the steering assembly comprises a support, a speed reducer and a steering motor; the steering motor is connected with a speed reducer, and the bracket is arranged in the middle of the frame and used for fixing the speed reducer; the speed reducer is vertically provided with a reversing shaft, a horizontally arranged reversing plate is fixed on the reversing shaft, the reversing plate is driven by the speed reducer to rotate back and forth, and a first arc-shaped groove is formed in the reversing plate;
the reversing shaft is connected with the reversing shaft through a transmission arm; one end of the transmission arm is a sector comprising a second arc-shaped groove, the other end of the transmission arm is connected with one end of a steering pressure connecting rod through a pin shaft, and the other end of the steering pressure connecting rod is connected with a fixed arm pin shaft of one of the guide wheels;
the reversing shaft is connected with the reversing shaft through a pull arm; one end of the tension arm is fixedly provided with an alignment pin, and the alignment pin penetrates through the second arc-shaped groove and the first arc-shaped groove to enable the reversing plate, the force transmission arm and the tension arm to form linkage;
the other end of the tension arm is connected with a tension device, and the tension device is connected with a middle shaft of the frame;
the reversing assembly comprises a first state and a second state;
in a first state: the first guide wheel is abutted against the convex edge of the track on the same side, the force transmission arm and the steering pressure connecting rod are positioned on one side, and the tension device tensions the tension arm to enable the force transmission arm to apply continuous tension to the steering pressure connecting rod;
when a steering motor applies steering force, the speed reducer drives the steering shaft to rotate to enable the steering plate to steer to the other side, the steering plate drives the force transmission arm to rotate under the action of the apposition pin, the force transmission arm and the steering pressure rod are located on different sides, the force transmission arm drives the steering pressure connecting rod to displace, so that the first guide wheel swings and is separated from the convex edge of the track until the second guide wheel abuts against the convex edge of the track on the same side, at the moment, the steering assembly completes switching from the first state to the second state, and the tension device tensions the tension arm to enable the force transmission arm to apply continuous thrust to the steering pressure connecting rod until next steering. Since the steering mechanism is connected to one side guide wheel through the steering pressure link, by changing the state of the steering mechanism, the direction of the steering torque can be changed, which in turn applies a pushing force or a pulling force to the guide wheel. In the reversing process, the reversing plate drives the tension arm through the synchronizing pin to enable the tension arm to move to the other side, the force applied to the tension arm by the tension device can maintain the pushing force or the pulling force applied to the guide wheels by the steering pressure connecting rod, so that the corresponding guide wheels are kept continuously deviated to the same side and the pressure on the road edge is kept, and the raised road edge can continuously apply reverse acting force to the trolley and guide the advancing direction of the trolley.
In an optional embodiment, the vehicle body further comprises a reversing buffer, one end of the reversing buffer is connected with the tension arm, and the other end of the reversing buffer is connected with a middle shaft of the vehicle frame, so that the direction of the reversing buffer is consistent with that of the tension device.
In an alternative embodiment, the reversing damper is a hydraulic damper for providing a counter-resistance when the tension device is extended or retracted.
In an alternative embodiment, two limit pins are arranged on the lower surface of the bracket, and a certain distance is kept between the two limit pins to limit the rotation range of the reversing plate.
In an optional embodiment, the first guide wheel and the second guide wheel are respectively connected with the fixed shaft of the travelling wheel on the same side through an L-shaped fixed arm; and the tail parts of the fixed arms of the first guide wheel and the second guide wheel are connected through a connecting rod pin shaft. The two guide wheels and the walking wheels are linked, namely, when the guide wheels deflect, the walking wheels synchronously deflect in the same direction.
In an optional embodiment, the tension device is fixed on the middle shaft of the frame through a tension adjusting rod, and the tension adjusting rod is used for changing the tension of the tension device.
In an optional embodiment, the tension adjusting rod is a screw rod. By adjusting the tension adjusting rod, the tension of the tension device can be changed. The tension device generates a rotating moment to the tension arm, and the rotating moment is transmitted to the force transmission arm through the synchronizing pin, so that the front road wheels of the vehicle obtain a steering moment.
In an optional embodiment, the road wheels comprise two front road wheels and two rear road wheels; the first guide wheel and the second guide wheel are respectively connected with two traveling wheels positioned in front of the frame.
In an alternative embodiment, the tension device is a spring.
The embodiments are further described below with reference to the accompanying drawings.
Fig. 1 is a schematic application diagram of the rail car provided by the invention, wherein a carriage of the car is omitted, and only the running gear 100 arranged below the carriage is shown; the walking device 100 walks on a track, wherein the track comprises a track surface 301 and convex edges 302 on two sides of the track surface 301; the track is not limited to a cement material or a metal material. Or as shown in fig. 2, a plurality of trolleys run on the track, wherein the trolley running device 401 runs along the trunk road, and the trolley running device 402 runs on the turnout junction steering branch road. Vehicle 401 is traveling straight through the switch and vehicle 402 is turning right through the switch. The tension arm of the steering mechanism of the vehicle 401 can be seen to be on the right, turning the front road wheels to the left. The tension arm of the vehicle 402 is to the right, turning the front road wheels to the right. Since the vehicle 401 runs along a straight road, the front road wheels are turned at a small angle. The vehicle 402 turns into the right lane with a large front road wheel turning angle. When the turning radius of the vehicle is smaller than the radius of the curve, the right guide wheel of the vehicle can contact the convex edge. At this time, the convex edge generates thrust to the guide wheel, so that the turning radius of the vehicle is increased, and the turning radius of the vehicle is close to the same as the radius of the curve.
As shown in fig. 3, the trolley traveling device comprises a frame 201, front traveling wheels 206, guide wheels 205 and rear traveling wheels 207. The front running wheels 206 are steering wheels, and the guide wheels 205 include two guide wheels, namely a guide wheel 2051 and a guide wheel 2052; the two guide wheels are connected to the fixed axle 202 of the front road wheel by a L-shaped fixed arm 202, the ends of said L-shaped fixed arm 202 being connected by a synchronization link 203. Specifically, the L-shaped fixed arm penetrates through the horizontal slotted hole and is fixedly connected with the fixed shaft of the travelling wheel, so that the first guide wheel and the second guide wheel are respectively linked with the travelling wheel on the same side. And an L-shaped fixed arm 204, the horizontal head of which is bent outwards and is provided with a guide wheel 205, and the outer side wheel edge of the guide wheel extends out of the outer side of the front walking wheel.
The front end of the frame 201 is provided with a steering mechanism 209, and the specific structure of the steering mechanism 209 is shown in fig. 4, 5 and 6, and comprises a speed reducer 102, a steering motor 101, a tension arm 109, a transmission arm 107, a reversing plate 106, a reversing shaft 105, a steering pressure connecting rod 108, a tension device 111, a buffer 112, a bracket 103 and a limit pin 104.
The bracket 103 is arranged at the middle position of the frame and used for fixing the speed reducer 102; a reversing shaft 105 is vertically arranged on the speed reducer 102, a horizontally arranged reversing plate 106 is fixed on the reversing shaft 105, the reversing plate 106 is driven by the speed reducer 102 to rotate back and forth, and a first arc-shaped groove 113 is formed in the reversing plate 106; two limiting pins 104 are arranged on the mounting bracket 103, so that the reversing plate has two positioning positions during rotation, namely the leftmost positioning position and the rightmost positioning position, and the left-right rotation range of the reversing plate 106 is limited. After the reversing plate is positioned, the synchronous pin can freely move in the arc-shaped groove of the reversing plate when the front wheel swings in the left-right maximum amplitude.
The transmission arm 107 is arranged below the reversing plate 106 and connected with the reversing shaft 105; one end of the transmission arm 107 is a sector including a second arc-shaped groove 114, the other end of the transmission arm is connected with one end of the steering pressure connecting rod 108 through a pin shaft, and the other end of the steering pressure connecting rod 108 is connected with a fixed arm pin shaft of one of the guide wheels. The transmission arm 107 can swing at a certain angle in the left-right direction, the left-right swing angles of the forward transmission arm 107 are equal, and the maximum swing amplitude can adapt to the maximum steering amplitude of the front traveling wheel. The length of the second arc-shaped slot on the force transmission arm 107 needs to satisfy two conditions, one is to make the angle of the tension arm and the force transmission arm close to 90 degrees, because the movement of the force transmission arm is left-right swing, and the tension arm is front-back swing. The tension device is installed near the front and back direction. The front road wheels turn left or right. The amplitude of the swing of the transmission arm 107 is correlated with the amplitude of the steering of the front road wheels.
The tension arm 109 is arranged below the transmission arm 107 and is connected with the reversing shaft 105; one end of the tension arm 109 is fixedly provided with an alignment pin 110, and the alignment pin 110 passes through the second arc-shaped groove 114 and the first arc-shaped groove 113, so that the reversing plate 106, the force transmission arm 107 and the tension arm 109 are linked; the other end of the tension arm 109 is connected with a tension device 111, the tension device 111 is connected with a middle shaft of the frame 201, and the tension device is preferably a spring or a tension spring; the front end of the tension arm 109 is provided with a buffer 112, the buffer 112 and the tension device are arranged on the same fixed column on the tension arm 109, the other end of the buffer 112 is arranged on the bracket, and the tension arm is damped when swinging. The length of the first arc-shaped groove on the reversing plate ensures that the synchronous pin does not interfere with the reversing plate when the transmission arm is at the leftmost position or the rightmost position. When the direction needs to be changed, the reversing plate rotates, the pulling force arm is driven to rotate through the synchronizing pin, the direction of the pulling force moment of the pulling device is changed after the pulling force arm rotates over the middle point, and the elastic force arm generates pressure with the changed direction on the pulling force arm through the force transmission arm of the synchronizing pin. The tension device is fixed on a middle shaft of the frame 201 through a tension adjusting rod 208, and the tension adjusting rod is used for changing the tension of the tension device. Optionally, the tension adjusting rod is a screw. The center axle of the frame 201 may include a plurality.
The reversing assembly comprises a first state shown in fig. 7 and a second state shown in fig. 8;
in a first state: the first guide wheel 2052 abuts against the convex edge 302 of the track on the same side, and the reversing plate is positioned on one side close to the second guide wheel 2051; the transmission arm 107 and the steering pressure connecting rod 108 are positioned at the same side, so that the steering pressure connecting rod applies tension to the guide wheel, the tension device tensions the tension arm 109, the tension arm 109 is positioned at the same side of the steering pressure connecting rod 108, and the tension applied to the guide wheel by the steering pressure connecting rod 108 is maintained;
when the steering motor applies a steering force, the steering motor 101 drives the reversing shaft 103 through the speed reducer 102, and the reversing plate 104 and the reversing shaft rotate synchronously. The speed reducer 102 drives the reversing shaft 103 to rotate to enable the reversing plate to turn to the other side, the force transmission arm 107 and the tension arm 109 also turn to the other side under the action of the alignment pin, the force transmission arm 107 and the steering pressure connecting rod 108 are positioned on two different sides, and the two different sides are the two sides of a rotating shaft of the force transmission arm and the steering pressure connecting rod; the transmission arm 107 drives the steering pressure link 108 to displace, so that the first guide wheel 2052 swings and is separated from the convex edge of the track until the second guide wheel 2051 abuts against the convex edge 302 of the track on the same side, and at the moment, the steering assembly is switched from the first state shown in fig. 7 to the second state shown in fig. 8; the tension device tensions the tension arm to make the transmission arm apply continuous pushing force to the steering pressure connecting rod until next reversing.
When the vehicle runs, the steering torque generated by the steering mechanism acts on the front road wheels to turn the vehicle to a set side until the guide wheel 205 on the side is contacted with the convex edge 302, the convex edge generates a guide torque opposite to the steering torque on the guide wheel, and when the steering torque and the guide torque are equal, the advancing direction of the trolley is approximately parallel to the tangential direction of the convex edge stone, so that the purpose of guiding the trolley along the convex edge on the side of the track is realized.
Before passing through the separation turnout, the trolley is guided along the left convex edge, and then enters the left branch. The trolley is guided along the right convex edge, and then enters the right branch.
When the turnout is combined, when the trolley enters the turnout from the left branch, the trolley needs to be guided along the left convex edge. When the trolley enters the turnout from the right branch, the trolley needs to be guided along the right convex edge. The pressure torque of the convex edge on the guide wheel is offset with the steering torque of the front road wheel. The vehicle advances along the convex edge and keeps the guide wheel on one side and the convex edge in continuous contact. The vehicle running direction is close to the tangential direction of the convex edge.
The constant pressure steering structure can change the direction of the steering torque, so that the trolley runs along the left convex edge or the right convex edge and smoothly passes through the turnout and enters the left branch or the right branch.
When the reversing plate rotates, the tension arm is pushed, so that the synchronous pin can not contact the transmission arm no matter the front walking wheel turns to the leftmost or rightmost, no steering force is applied to the front walking wheel, the vehicle can run straight, and the direction of the vehicle can not be changed until the side guide wheel touches the convex edge. Generally, the reversing plate has only two positions, the leftmost position or the rightmost position, and the middle position needs to be quickly passed through. Generally, the length of the tension device is long, when the left most and the right most of the front walking wheels change, the tension arm also changes between the front most and the rear most, and the length of the tension device also changes accordingly. The length of the tension device is increased during design, so that the change amount of the length of the tension device is smaller than the total stretching amount of the tension device when the front position and the rear position of the tension arm are changed, and therefore the tension change range of the tension device is smaller, and the steering force of the front walking wheel driven by the front walking wheel keeps a nearly constant value. Numerical values illustrate: assuming that the stretching length of the stretching device is 500mm at the last moment of the stretching arm, which corresponds to 50N of the stretching force, and the stretching length of the stretching device is 600mm at the foremost moment of the stretching arm, which corresponds to 60N of the stretching force. The pulling force is 50 newtons at the minimum and 60 newtons at the maximum, and the variation range is 20%, and is smaller.
The tension device can also be replaced by a constant force coil spring, and the tension change is smaller when the stretching length is changed.
The preferred embodiments of the present application have been described above with reference to the accompanying drawings, and are not intended to limit the scope of the claims of the application accordingly. Those skilled in the art can implement the present application in various modifications, such as features from one embodiment may be used in another embodiment to yield yet a further embodiment, without departing from the scope and spirit of the present application. Any modification, equivalent replacement and improvement made within the technical idea of the application shall fall within the scope of the claims of the application.
Claims (9)
1. A rail car guide structure comprising: the rail is provided with two convex edges at two sides and is used for guiding the running direction of the trolley running along the rail; the trolley is used for bearing passengers and comprises a carriage and a walking device arranged below the carriage; the method is characterized in that:
the travelling device comprises a frame, a plurality of travelling wheels arranged below the frame, and a first guide wheel and a second guide wheel which are respectively arranged on two sides of the frame, wherein the first guide wheel and the second guide wheel are respectively linked with the travelling wheels on the same side;
the frame is also provided with a steering assembly, and the steering assembly comprises a support, a speed reducer and a steering motor; the steering motor is connected with a speed reducer, and the bracket is arranged in the middle of the frame and used for fixing the speed reducer; the speed reducer is vertically provided with a reversing shaft, a horizontally arranged reversing plate is fixed on the reversing shaft, the reversing plate is driven by the speed reducer to rotate back and forth, and a first arc-shaped groove is formed in the reversing plate;
the reversing shaft is connected with the reversing shaft through a transmission arm; one end of the transmission arm is a sector comprising a second arc-shaped groove, the other end of the transmission arm is connected with one end of a steering pressure connecting rod through a pin shaft, and the other end of the steering pressure connecting rod is connected with a fixed arm pin shaft of one of the guide wheels;
the reversing shaft is connected with the reversing shaft through a pull arm; one end of the tension arm is fixedly provided with an alignment pin, and the alignment pin penetrates through the second arc-shaped groove and the first arc-shaped groove to enable the reversing plate, the force transmission arm and the tension arm to form linkage;
the other end of the tension arm is connected with a tension device, and the tension device is connected with a middle shaft of the frame;
the steering assembly includes a first state and a second state;
in a first state: the first guide wheel is abutted against the convex edge of the track on the same side, the force transmission arm and the steering pressure connecting rod are positioned on one side, and the tension device tensions the tension arm to enable the force transmission arm to apply continuous tension to the steering pressure connecting rod;
when a steering motor applies steering force, the speed reducer drives the steering shaft to rotate to enable the steering plate to steer to the other side, the steering plate drives the force transmission arm to rotate under the action of the apposition pin, the force transmission arm and the steering pressure rod are located on different sides, the force transmission arm drives the steering pressure connecting rod to displace, so that the first guide wheel swings and is separated from the convex edge of the track until the second guide wheel abuts against the convex edge of the track on the same side, at the moment, the steering assembly completes switching from the first state to the second state, and the tension device tensions the tension arm to enable the force transmission arm to apply continuous thrust to the steering pressure connecting rod until next steering.
2. The rail car guide structure according to claim 1, wherein: the reversing buffer is characterized by further comprising a reversing buffer, one end of the reversing buffer is connected with the tension arm, and the other end of the reversing buffer is connected with a middle shaft of the frame, so that the direction of the reversing buffer is consistent with that of the tension device.
3. The trolley guide structure according to claim 2, wherein: the reversing buffer is a hydraulic buffer and is used for providing reverse resistance when the tension device stretches or contracts.
4. The rail car guide structure according to claim 1, wherein: two limiting pins are arranged on the lower surface of the support, and a certain distance is kept between the two limiting pins to limit the rotation range of the reversing plate.
5. The rail car guide structure according to claim 1, wherein: the first guide wheel and the second guide wheel are respectively connected with the fixed shaft of the travelling wheel at the same side through an L-shaped fixed arm; and the tail parts of the fixed arms of the first guide wheel and the second guide wheel are connected through a connecting rod pin shaft.
6. The rail car guide structure according to claim 1, wherein: the tension device is fixed on the middle shaft of the frame through a tension adjusting rod, and the tension adjusting rod is used for changing the tension of the tension device.
7. The trolley guide structure according to claim 6, wherein: the tension adjusting rod is a screw rod.
8. The rail car guide structure according to claim 1, wherein: the walking wheels comprise two front walking wheels and two rear walking wheels; the first guide wheel and the second guide wheel are respectively connected with two traveling wheels positioned in front of the frame.
9. The rail car guide structure according to claim 1, wherein: the tension device is a spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022396352.7U CN213921025U (en) | 2020-10-26 | 2020-10-26 | Rail trolley guide structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022396352.7U CN213921025U (en) | 2020-10-26 | 2020-10-26 | Rail trolley guide structure |
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| CN213921025U true CN213921025U (en) | 2021-08-10 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113815658A (en) * | 2021-09-26 | 2021-12-21 | 国能朔黄铁路发展有限责任公司 | Rollover prevention equipment for railway vehicle and flaw detection vehicle |
| CN114803360A (en) * | 2022-06-21 | 2022-07-29 | 南京航空航天大学 | Rail replacing mechanism of rail running trolley and using method |
-
2020
- 2020-10-26 CN CN202022396352.7U patent/CN213921025U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113815658A (en) * | 2021-09-26 | 2021-12-21 | 国能朔黄铁路发展有限责任公司 | Rollover prevention equipment for railway vehicle and flaw detection vehicle |
| CN114803360A (en) * | 2022-06-21 | 2022-07-29 | 南京航空航天大学 | Rail replacing mechanism of rail running trolley and using method |
| CN114803360B (en) * | 2022-06-21 | 2023-02-10 | 南京航空航天大学 | Rail replacing mechanism of rail running trolley and using method |
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