CN111746576A - Guide wheel pressure adjusting device and method, bogie and railway vehicle - Google Patents
Guide wheel pressure adjusting device and method, bogie and railway vehicle Download PDFInfo
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- CN111746576A CN111746576A CN201910230207.0A CN201910230207A CN111746576A CN 111746576 A CN111746576 A CN 111746576A CN 201910230207 A CN201910230207 A CN 201910230207A CN 111746576 A CN111746576 A CN 111746576A
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- hydraulic
- guide wheel
- pressure
- control valve
- hydraulic line
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61F—RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; PREVENTING DERAILING OF RAIL VEHICLES; WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAIL VEHICLES
- B61F5/00—Constructional details of bogies; Connections between bogies and vehicle underframes; Arrangements or devices for adjusting or allowing self-adjustment of wheel axles or bogies when rounding curves
- B61F5/02—Arrangements permitting limited transverse relative movements between vehicle underframe or bolster and bogie; Connections between underframes and bogies
- B61F5/22—Guiding of the vehicle underframes with respect to the bogies
Abstract
The invention provides a guide wheel pressure adjusting device and method, a bogie and a railway vehicle, wherein the guide wheel pressure adjusting device comprises: a wheel axle; a guide wheel disposed below the wheel shaft; the signal receiving device is connected with the wheel shaft; a hydraulic device connected with the axle and the signal receiving device. The pressure adjusting device and method for the guide wheel are beneficial to reducing the manual operation intensity, improving the adjusting precision, reducing the abrasion of the guide wheel and prolonging the service life of the guide wheel.
Description
Technical Field
The invention belongs to the field of rail transit, and particularly relates to a guide wheel pressure adjusting device and method, a bogie and a rail vehicle.
Background
In the guide wheel pressure adjusting device in the related art, after the guide wheel tire is worn and the clamping force is changed, the guide wheel needs to be disassembled manually, adjusting gaskets are added or reduced, the manual operation workload is large, a large amount of manpower, material resources and time need to be consumed, the adjusting precision is determined by the thickness of the adjusting gaskets, and the adjusting precision is poor.
Disclosure of Invention
In order to solve the technical problem, the invention provides a guide wheel pressure adjusting device, a bogie and a railway vehicle. The pressure adjusting device for the guide wheel is beneficial to reducing the manual operation intensity, improving the adjusting precision and reducing the abrasion of the guide wheel.
According to a first aspect of the present invention, there is provided a guide wheel pressure adjustment device, including: a wheel axle; a guide wheel disposed below the wheel shaft; the signal receiving device is connected with the wheel shaft; a hydraulic device connected with the axle and the signal receiving device.
According to the pressure adjusting device for the guide wheel provided by the embodiment of the first aspect of the invention, the pressure of the guide wheel is adjusted through the combined action of the hydraulic device and the signal receiving device, so that the manual operation intensity is reduced, the adjusting precision is improved, and the abrasion of the guide wheel is reduced.
In some examples of the invention, the hydraulic device comprises: a hydraulic line; the piston cylinder is connected with the wheel shaft; the control valve is connected with the piston cylinder through the hydraulic pipeline and is connected with the signal receiving device; and the liquid supply device is connected with the control valve through a hydraulic pipeline. Therefore, through the hydraulic device, the pressure adjusting precision of the guide wheel can be higher, the transverse stability of the vehicle can be kept, and the service life of the guide wheel can be prolonged.
In some examples of the invention, the hydraulic circuit is plural. Therefore, the plurality of hydraulic pipelines can accelerate the liquid flow in the hydraulic device, so that the hydraulic device is adjusted more quickly and reliably.
In some examples of the invention, the number of the hydraulic pipelines is four, and one end of each of the two hydraulic pipelines is connected with the piston cylinder, and the other end of each of the two hydraulic pipelines is connected with the control valve; and one ends of the other two hydraulic pipelines are connected with the liquid supply device, and the other ends of the other two hydraulic pipelines are connected with the control valve. From this, four hydraulic line can carry out automatically regulated according to the control valve control to leading wheel pressure to reduce manual operation intensity, improve the regulation precision, keep rail vehicle lateral stability.
In some examples of the invention, the four hydraulic lines are a first hydraulic line, a second hydraulic line, a third hydraulic line and a fourth hydraulic line, respectively; the first hydraulic pipeline is connected with the liquid supply device and the control valve, the second hydraulic pipeline is connected with the liquid supply device and the control valve, the third hydraulic pipeline is connected with the piston cylinder and the control valve, and the fourth hydraulic pipeline is connected with the piston cylinder and the control valve. Therefore, the action of the piston cylinder can be controlled through the hydraulic pipeline, so that the pressure of the guide wheel can be automatically adjusted, the adjustment precision is improved, and the transverse stability of the rail vehicle is kept.
In some examples of the invention, the piston cylinder comprises a cylinder body connected to the hydraulic line and a piston member located within the cylinder body and connected to the upper end of the axle. From this, through the structure of piston cylinder, realize the automatically regulated to leading wheel pressure, improve the regulation precision.
In some examples of the invention, the clearance between the cylinder body and the piston member constitutes two hydraulic chambers, and the two hydraulic chambers are respectively located at two ends of the piston cylinder.
In some examples of the present invention, a wire harness is further included to connect the hydraulic device and the signal receiving device.
An embodiment according to a second aspect of the invention provides a bogie comprising a guide wheel pressure adjustment arrangement according to any of the above examples.
An embodiment according to a third aspect of the invention proposes a rail vehicle adapted to run on a rail beam provided with a pressure sensor, comprising a bogie according to an embodiment of the second aspect of the invention.
An embodiment according to a fourth aspect of the present invention proposes a guide wheel pressure adjustment method, including: the signal receiving device receives a pressure signal transmitted by the pressure sensor, and transmits the pressure signal to the hydraulic device through a wire harness;
the hydraulic device receives the pressure signal, operates through the pressure signal, drives the wheel shaft to move, and adjusts the contact pressure of the guide wheel connected with the wheel shaft.
In some embodiments, the hydraulic device receives the pressure signal, operates the hydraulic device through the pressure signal, drives the axle to move, and adjusts the contact pressure of a guide wheel connected with the axle, and comprises:
a control valve in the hydraulic device receives the pressure signal, and the control valve controls the liquid supply device to supply liquid through the pressure signal;
the liquid supply device supplies liquid to enable a piston piece in the piston cylinder to move in the cylinder body;
the piston member moves to move the wheel shaft connected to the piston member, thereby moving the guide wheel connected to the wheel shaft to adjust the contact pressure of the guide wheel.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
FIG. 1 is a schematic diagram of a rail transit system provided by an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a guide wheel pressure adjustment device provided by an embodiment of the invention;
FIG. 3 is an exploded view of a guide wheel pressure adjustment device provided in accordance with an embodiment of the present invention;
FIG. 4 is a side view of a guide wheel pressure adjustment mechanism provided by an embodiment of the present invention;
FIG. 5 is a cross-sectional view taken along the plane A-A in FIG. 4;
fig. 6 is a flowchart of a method for adjusting the pressure of the guide wheel according to an embodiment of the present invention.
Reference numerals:
a bogie 100;
a track beam 200;
a guide wheel pressure adjusting device 300;
a hub 10;
a guide wheel 20;
a signal receiving device 30;
a hydraulic device 40;
a hydraulic line 41, a first hydraulic line 411, a second hydraulic line 412, a third hydraulic line 413, a fourth hydraulic line 414;
the piston cylinder 42, the cylinder body 421, the piston member 422, the hydraulic chamber 423, the first hydraulic chamber 4231, the second hydraulic chamber 4232;
a control valve 43;
a liquid supply device 44;
a pressure sensor 50; a wire harness 60;
a fixed frame 70 and a mounting frame 71.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects solved by the present invention more clearly apparent, the present invention 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 invention and are not intended to limit the invention.
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "central", "longitudinal", "lateral", "vertical", "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations and positional relationships based on those shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Wherein the content of the first and second substances,xthe axial direction is a transverse direction,xthe positive direction of the axis is the right direction,xthe axial negative direction is left;ythe axial direction is the longitudinal direction,ythe positive direction of the axis is the front direction,ythe negative axis direction is back;zthe axial direction is vertical or vertical,zthe positive direction of the axis is upward,zthe axial negative direction is lower;xOythe plane is the horizontal plane, and the horizontal plane,yOzthe plane is the vertical plane in the longitudinal direction,xOzi.e. the transverse vertical plane. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; the connection can be mechanical connection or electrical connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
A guide wheel pressure adjusting apparatus 300, a bogie 200, and a railway vehicle according to an embodiment of the present invention will be described in detail with reference to fig. 1 to 5. The rail vehicle is adapted to run on the rail beam 100.
As shown in fig. 1 to 5, the guide wheel pressure adjusting means 300 includes an axle 10, a guide wheel 20, a signal receiving means 30, and a hydraulic means 40. The guide wheel 20 is disposed below the wheel axle 10. The signal receiving means 30 is connected to the hub 10. The hydraulic device 40 is connected with the axle 10 and the signal receiving device 30.
In some embodiments, as shown in fig. 1-2, the guide wheel 20 is fixedly connected to the axle 10 and is fixed below the axle 10. The signal receiving means 30 is fixedly arranged below the wheel axle 10. The hydraulic device 40 is partly fixedly connected to the axle 10 and partly connected to the signal receiving device 30 via a wiring harness 60. In other embodiments, the signal receiving device 30 may be fixedly disposed at any position on the axle 10.
In the running process of the railway vehicle, the guide wheel 20 is worn after running for a period of time, the signal receiving device 30 transmits a signal to the hydraulic device 40 after receiving information about the wear of the guide wheel 20, the hydraulic device 40 acts to drive the wheel shaft 10 fixedly connected with the hydraulic device 40 to move in the left-right direction, the guide wheel 20 is fixedly connected with the wheel shaft 10, and therefore the guide wheel 20 is driven to move in the left-right direction, and the automatic adjustment of the pressure of the guide wheel 20 is achieved. It should be noted that, the left-right direction here is the direction of the X axis in the drawing. Therefore, the guide wheel pressure adjusting device 300 can realize guide wheel pressure adjustment through the combined action of the hydraulic device 40 and the signal receiving device 30, is beneficial to reducing the manual operation intensity, improving the adjusting precision, keeping the transverse stability of the railway vehicle, improving the abrasion of the guide wheel 20 and prolonging the service life of the guide wheel 20.
In some embodiments of the present invention, as shown in fig. 2-5, the hydraulic device 40 includes a hydraulic line 41, a piston cylinder 42, a control valve 43, and a liquid supply 44. The piston cylinder 42 is connected to the axle 10. The control valve 43 is connected to the piston cylinder 42 via the hydraulic line 41, and the control valve 43 is connected to the signal receiving device 30. The liquid supply device 44 is connected to the control valve 43 via the hydraulic line 41.
In some embodiments, as shown in fig. 2-5, the piston cylinder 42 is fixedly attached to the upper end of the axle 10. The control valve 43 is connected to the signal receiving device 30 via a harness 60, and the harness 60 is used for signal transmission between the control valve 43 and the signal receiving device 30. The liquid supply device 44 is connected to the control valve 43 via the hydraulic line 41. The piston cylinder 42 is connected to a control valve 43 via a hydraulic line 41.
The signal receiving device 30 presets a standard pressure value, when the contact pressure between the guide wheel 20 and the track beam 200 is reduced due to abrasion of the guide wheel 20 or the contact pressure between the guide wheel 20 and the track beam 200 is increased due to various errors, the signal receiving device 30 transmits information to a control valve 43 on the hydraulic device 40 through a wiring harness 60, so that the liquid is supplied to a liquid supply device 44 through a hydraulic pipeline 41, a piston cylinder 42 is driven to move, a wheel shaft 10 connected with the piston cylinder 42 moves in the left-right direction, the guide wheel 20 is driven to move in the left-right direction, and automatic adjustment of the pressure of the guide wheel 20 is achieved. It should be noted that, the left-right direction here is the direction of the X axis in the drawing. From this, through hydraulic means 40, can realize leading wheel pressure control, be favorable to reducing manual operation intensity, improve the regulation precision, keep rail vehicle lateral stability, improve the wearing and tearing of leading wheel 20, improve the life of leading wheel 20.
In some embodiments, as shown in fig. 1-3, there are multiple hydraulic lines 41. Thus, the plurality of hydraulic lines 41 can increase the fluid flow rate in the hydraulic device 40 when the hydraulic device 40 is operating, thereby making the adjustment of the hydraulic device 40 more rapid and reliable.
In some embodiments, as shown in fig. 1-3, there are four hydraulic lines 41, two hydraulic lines 41 connected to the piston cylinder 42 at one end and to the control valve 43 at the other end; the other two hydraulic lines 41 are connected at one end to a liquid supply 44 and at the other end to a control valve 43. From this, four hydraulic circuit 41 can carry out automatically regulated according to control valve 43 control, to the pressure of leading wheel 20 to reduce the manual operation degree of difficulty, improve the regulation precision, keep rail vehicle's lateral stability.
In some embodiments, as shown in fig. 1-3, the four hydraulic lines 41 are a first hydraulic line 411, a second hydraulic line 412, a third hydraulic line 413, and a fourth hydraulic line 414, respectively. The first hydraulic line 411 is connected to the liquid supply 44 and the control valve 43, the second hydraulic line 412 is connected to the hydraulic device 44 and the control valve 43, the third hydraulic device 413 is connected to the piston cylinder 42 and the control valve 43, and the fourth hydraulic device 414 is connected to the piston cylinder 42 and the control valve 43.
In some embodiments, the control valve 43 is a three-position, four-way control valve that controls communication between the first, second, third and fourth hydraulic lines 411, 412, 413, 414. The first hydraulic line 411 may be in communication with the third hydraulic line 413 and also with the fourth hydraulic line 414, under the control of the control valve 43; the second hydraulic line 412 may be in communication with the third hydraulic line 413 and may also be in communication with the fourth hydraulic line 414. Thus, the four hydraulic lines 41 can constitute two kinds of conduction circuits. When the first hydraulic line 411 is in communication with the third hydraulic line 413, the second hydraulic line 412 is in communication with the fourth hydraulic line 414; when the first hydraulic line 411 and the fourth hydraulic line 414 are in communication, the second hydraulic line 412 and the third hydraulic line 413 are in communication.
In some embodiments, as shown in fig. 3-5, the piston cylinder 42 includes a cylinder 421 and a piston member 422, the cylinder 421 is connected to the hydraulic line 41, the piston member 422 is slidably disposed within the cylinder 421, and the piston member 422 is connected to the upper end of the axle 10.
In some embodiments, as shown in fig. 3-5, the piston cylinder 42 is disposed within a mounting bracket 70, the mounting bracket 70 having a mounting frame 71, the mounting frame 71 configured to receive the piston cylinder 42. The fixing frame 70 is fixedly connected with the cylinder 421 of the piston cylinder 42 through bolts and nuts. The cylinder 421 is connected to the third and fourth hydraulic lines 413, 414, the piston member 422 is slidably disposed in the cylinder 421, and the piston member 422 is connected to the upper end of the axle 10. From this, piston cylinder 42 can cooperate through cylinder body 421 and piston piece 422, and piston piece 422 slides in cylinder body 421 to drive shaft 10 and move in left and right directions, thereby realize the pressure automatically regulated of leading wheel 20, and carry out the regulation of leading wheel 20 pressure through piston cylinder 42, it is more accurate. It should be noted that, the left-right direction here is the direction of the X axis in the drawing.
In some embodiments, as shown in fig. 4-5, the gap between the cylinder 421 and the piston 422 forms two hydraulic chambers 423, and the two hydraulic chambers 423 are respectively located at two ends of the piston cylinder 42.
In some embodiments, as shown in fig. 4-5, there are two hydraulic chambers 423, a first hydraulic chamber 4231 and a second hydraulic chamber 4232, respectively. The first hydraulic chamber 4231 and the second hydraulic chamber 4232 are located on the left and right sides of the piston cylinder 42, respectively. It should be noted that, the left-right direction here is the direction of the X axis in the drawing. Thus, the liquid supply device 44 supplies liquid, is accommodated in the first hydraulic chamber 4231 and the second hydraulic chamber 4232, and causes the piston member 422 to perform piston movement in the cylinder 421 by liquid compression, thereby moving the wheel shaft 10 in the left-right direction, thereby achieving automatic adjustment of the contact pressure of the guide wheel 20. It should be noted that, the left-right direction here is the direction of the X axis in the drawing.
In some embodiments, the liquid stored in the liquid supply 44 is preferably oil. Thus, the oil can lubricate and drive the piston cylinder 42.
In some embodiments, as shown in fig. 2-5, a wiring harness 60 is further included, the wiring harness 60 being configured to connect the hydraulic device 40 and the signal receiving device 30. The signal receiving device 30 transmits the received pressure signal to the control valve 43 in the hydraulic device 40 through the wiring harness 60, thereby controlling the operation of the hydraulic device 40.
The bogie 100 according to the embodiment of the present invention includes a plurality of guide wheel pressure adjusting devices 300 according to any one of the above-described embodiments of the present invention. Therefore, the bogie 100 can realize automatic adjustment of the contact pressure of the guide wheel 20 by arranging the guide wheel pressure adjusting device 100, has high adjustment precision, is beneficial to prolonging the service life of the guide wheel 20 and is beneficial to keeping the transverse stability of the vehicle.
The railway vehicle according to the embodiment of the present invention, which is adapted to run on the railway beam 200, the railway beam 200 being provided with the pressure sensor 50, includes the bogie 100 according to the above-described embodiment of the present invention. The contact pressure of the guide wheels 20 with the rail beam 200 is detected by providing the pressure sensor 50 on the rail beam 200. The railway vehicle is provided with the bogie 200 provided with the guide wheel pressure adjusting device 300, so that the transverse stability of the railway vehicle is ensured.
A guide wheel pressure adjusting apparatus 300 according to an embodiment of the present invention will be described with reference to fig. 1 to 5.
In some embodiments, as shown in fig. 1-2, the guide wheel 20 is fixedly connected to the axle 10 and is fixed below the axle 10. The signal receiving means 30 is fixedly arranged below the wheel axle 10. The hydraulic device 40 is partly fixedly connected to the axle 10 and partly connected to the signal receiving device 30 via a wiring harness 60.
As shown in fig. 2-5, the hydraulic device 40 includes a hydraulic line 41, a piston cylinder 42, a control valve 43, and a liquid supply 44. The piston cylinder 42 is fixedly connected with the upper end of the wheel axle 10. The control valve 43 is connected to the signal receiving device 30 via a harness 60, and the harness 60 is used for signal transmission between the control valve 43 and the signal receiving device 30. The liquid supply device 44 is connected to the control valve 43 via the hydraulic line 41. The piston cylinder 42 is connected to a control valve 43 via a hydraulic line 41.
As shown in fig. 1 to 3, the hydraulic lines 41 are four, and the four hydraulic lines 41 are a first hydraulic line 411, a second hydraulic line 412, a third hydraulic line 413, and a fourth hydraulic line 414, respectively. The first hydraulic line 411 is connected to the liquid supply 44 and the control valve 43, the second hydraulic line 412 is connected to the hydraulic device 44 and the control valve 43, the third hydraulic device 413 is connected to the piston cylinder 42 and the control valve 43, and the fourth hydraulic device 414 is connected to the piston cylinder 42 and the control valve 43.
The control valve 43 is a three-position, four-way control valve that controls communication among the first, second, third and fourth hydraulic lines 411, 412, 413, 414. The first hydraulic line 411 may be in communication with the third hydraulic line 413 and also with the fourth hydraulic line 414, under the control of the control valve 43; the second hydraulic line 412 may be in communication with the third hydraulic line 413 and may also be in communication with the fourth hydraulic line 414. Thus, the four hydraulic lines 41 can constitute two kinds of conduction circuits. When the first hydraulic line 411 is in communication with the third hydraulic line 413, the second hydraulic line 412 is in communication with the fourth hydraulic line 414; when the first hydraulic line 411 and the fourth hydraulic line 414 are in communication, the second hydraulic line 412 and the third hydraulic line 413 are in communication.
As shown in fig. 3 to 5, the piston cylinder 42 includes a cylinder body 421 and a piston member 422, the cylinder body 421 is connected to the hydraulic line 41, the piston member 422 is slidably disposed in the cylinder body 421, and the piston member 422 is connected to the upper end of the wheel shaft 10.
The piston cylinder 42 is arranged in the fixed frame 70, the fixed frame 70 is provided with a mounting frame 71, and the mounting frame 71 is used for accommodating the piston cylinder 42. The fixing frame 70 is fixedly connected with the cylinder 421 of the piston cylinder 42 through bolts and nuts. The cylinder 421 is connected to the third and fourth hydraulic lines 413, 414, the piston member 422 is slidably disposed in the cylinder 421, and the piston member 422 is connected to the upper end of the axle 10.
As shown in fig. 4 to 5, a clearance between the cylinder 421 and the piston 422 forms two hydraulic chambers 423, and the two hydraulic chambers 423 are a first hydraulic chamber 4231 and a second hydraulic chamber 4232, respectively. The first hydraulic chamber 4231 and the second hydraulic chamber 4232 are located on the left and right sides of the piston cylinder 42, respectively. It should be noted that, the left-right direction here is the direction of the X axis in the drawing.
Therefore, the guide wheel pressure adjusting device 300 can realize guide wheel pressure adjustment through the combined action of the hydraulic device 40 and the signal receiving device 30, is beneficial to reducing the manual operation intensity, improving the adjusting precision, keeping the transverse stability of the railway vehicle, improving the abrasion of the guide wheel 20 and prolonging the service life of the guide wheel 20.
The invention also provides a pressure adjusting method of the guide wheel.
Fig. 6 is a flowchart of a method for adjusting a pressure of a guide wheel according to an embodiment of the present invention. The guide wheel pressure adjusting method of fig. 6 may be implemented by the guide wheel pressure adjusting apparatus 300 of fig. 1 to 5. The guide wheel pressure adjusting means 300 includes an axle 10, a guide wheel 20, a signal receiving means 30, and a hydraulic means 40. The guide wheel 20 is disposed below the wheel axle 10. The signal receiving means 30 is connected to the hub 10. The hydraulic device 40 is connected with the axle 10 and the signal receiving device 30.
As shown in fig. 6, the guide wheel pressure adjusting method includes:
s101, a signal receiving device receives a pressure signal transmitted by a pressure sensor, and the signal receiving device transmits the pressure signal to a hydraulic device through a wire harness.
In one embodiment of the invention, when the guide wheel contacts a pressure sensor arranged on the track beam, the signal receiving device receives a pressure signal transmitted by the pressure sensor, and the signal receiving device transmits the pressure signal to the hydraulic device through a wire harness.
And S102, the hydraulic device receives the pressure signal, operates through the pressure signal, drives the wheel shaft to move, and adjusts the contact pressure of a guide wheel connected with the wheel shaft.
In some embodiments of the invention, the hydraulic device receives the pressure signal, and determines whether the contact pressure between the guide wheel and the track beam is larger or smaller according to the information of the pressure signal, so that the hydraulic device is operated to drive the wheel shaft to move. Because the guide wheel is connected with the wheel shaft, the guide wheel moves along with the wheel shaft, and therefore the contact pressure between the guide wheel and the track beam is adjusted.
In other embodiments of the present invention, a control valve in the hydraulic device receives the pressure signal, and the control valve controls the liquid supply device to supply liquid through the pressure signal; the liquid supply device supplies liquid to enable the piston piece to move in the cylinder body; the piston member moves to move the wheel shaft connected to the piston member, thereby moving the guide wheel connected to the wheel shaft to adjust the contact pressure of the guide wheel.
Referring to fig. 1-6, a method for adjusting the pressure of the guide wheel will be described in detail in conjunction with an embodiment of the present invention.
In some embodiments, the guide wheels 20 may be worn during the running of the rail vehicle, resulting in a low contact pressure between the guide wheels 20 and the rail beam 200; there are also cases where the contact pressure between the guide wheels 20 and the rail beam 200 is excessive due to various errors.
The guide wheels 20 are in contact with the pressure sensors 50 on the track beam 200, and the pressure sensors 50 transmit pressure signals to the signal receiving device 30. The signal receiving device 30 is preset with a standard pressure value to determine the magnitude of the contact pressure.
When the contact pressure is small, the signal receiving device 30 transmits a pressure signal to the control valve 43 of the hydraulic device 40. The control valve 43 is a three-position four-way control valve. The control valve 43 receives the pressure signal and generates a control operation. The control valve 43 communicates the second hydraulic line 412 with the third hydraulic line 413, and communicates the first hydraulic line 411 with the fourth hydraulic line 414. The first hydraulic line 411 is a liquid return line, and the second hydraulic line 412 is a liquid supply line. The liquid supply device 44 infuses liquid into the second hydraulic chamber 4232 through the second and third hydraulic lines 412, 413 to compress the piston member 422, and liquid in the first hydraulic chamber 4231 is compressed back into the liquid supply device 44 through the fourth hydraulic line 414, the first hydraulic line 411, to move the piston member 422 to the right in the cylinder 421. The piston member 422 moves rightward, driving the wheel shaft 10 to move rightward, and in turn driving the guide wheel 20 fixed to the wheel shaft 10 to move rightward, thereby increasing the contact pressure between the guide wheel 20 and the track beam 200. It should be noted that, here, the left-right direction is a direction in which an X axis is located in the drawing, and the positive direction of the X axis is the right.
When the contact pressure is large, the signal receiving device 30 transmits a pressure signal to the control valve 43 of the hydraulic device 40. The control valve 43 is a three-position four-way control valve. The control valve 43 receives the pressure signal and generates a control operation. The control valve 43 communicates the second hydraulic line 412 with the fourth hydraulic line 414 and the first hydraulic line 411 with the third hydraulic line 413. The first hydraulic line 411 is a liquid return line, and the second hydraulic line 412 is a liquid supply line. The liquid supply device 44 pumps liquid into the first hydraulic chamber 4231 through the second and fourth hydraulic lines 412, 414, thereby compressing the piston member 422, and liquid in the second hydraulic chamber 4232 is compressed back into the liquid supply device 44 through the third and first hydraulic lines 414, 411, thereby moving the piston member 422 to the left in the cylinder 421. The piston member 422 is moved leftward to drive the wheel shaft 10 leftward, which in turn drives the guide wheel 20 fixed to the wheel shaft 10 leftward, thereby reducing the contact pressure between the guide wheel 20 and the rail beam 200. It should be noted that, the left-right direction here is the direction of the X axis in the drawing, and the negative direction of the X axis is left.
Other constructions and operations of the guide wheel pressure adjustment apparatus 300 and method according to embodiments of the present invention are known to those of ordinary skill in the art and will not be described in detail herein.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (12)
1. A guide wheel pressure adjustment device, comprising:
a wheel axle;
a guide wheel disposed below the wheel shaft;
the signal receiving device is connected with the wheel shaft;
a hydraulic device connected with the axle and the signal receiving device.
2. The guide wheel pressure adjustment device of claim 1, wherein the hydraulic device comprises:
a hydraulic line;
the piston cylinder is connected with the wheel shaft;
the control valve is connected with the piston cylinder through the hydraulic pipeline and is connected with the signal receiving device;
and the liquid supply device is connected with the control valve through a hydraulic pipeline.
3. The guide wheel pressure adjusting apparatus according to claim 2, wherein the hydraulic line is plural.
4. The guide wheel pressure regulating device according to claim 3, wherein the number of the hydraulic lines is four, and two of the hydraulic lines are connected to the piston cylinder at one end and to the control valve at the other end; and one ends of the other two hydraulic pipelines are connected with the liquid supply device, and the other ends of the other two hydraulic pipelines are connected with the control valve.
5. The guide wheel pressure adjustment device according to claim 4, wherein the four hydraulic lines are a first hydraulic line, a second hydraulic line, a third hydraulic line, and a fourth hydraulic line, respectively; the first hydraulic pipeline is connected with the liquid supply device and the control valve, the second hydraulic pipeline is connected with the liquid supply device and the control valve, the third hydraulic pipeline is connected with the piston cylinder and the control valve, and the fourth hydraulic pipeline is connected with the piston cylinder and the control valve.
6. The guide wheel pressure adjustment device according to claim 2, wherein the piston cylinder includes a cylinder body connected to the hydraulic line and a piston member slidably disposed in the cylinder body and connected to the upper end of the wheel shaft.
7. The guide wheel pressure regulating device according to claim 6, wherein a gap between the cylinder body and the piston member constitutes two hydraulic chambers, and the two hydraulic chambers are respectively located at both ends of the piston cylinder.
8. The guide wheel pressure adjustment device of claim 1, further comprising a wiring harness for connecting the hydraulic device and the signal receiving device.
9. A bogie characterized by comprising a plurality of guide wheel pressure adjustment devices according to any one of claims 1 to 8.
10. A rail vehicle adapted to run on a rail beam provided with a pressure sensor, characterized by comprising a bogie according to claim 9.
11. A guide wheel pressure adjustment method, characterized by comprising:
the signal receiving device receives a pressure signal transmitted by the pressure sensor, and transmits the pressure signal to the hydraulic device through a wire harness;
the hydraulic device receives the pressure signal, operates through the pressure signal, drives the wheel shaft to move, and adjusts the contact pressure of the guide wheel connected with the wheel shaft.
12. The method as claimed in claim 11, wherein the hydraulic device receives the pressure signal, operates the hydraulic device by the pressure signal, drives the axle to move, and adjusts the contact pressure of the guide wheel connected to the axle, comprising:
a control valve in the hydraulic device receives the pressure signal, and the control valve controls the liquid supply device to supply liquid through the pressure signal;
the liquid supply device supplies liquid to enable a piston piece in the piston cylinder to move in the cylinder body;
the piston member moves to move the wheel shaft connected to the piston member, thereby moving the guide wheel connected to the wheel shaft to adjust the contact pressure of the guide wheel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910230207.0A CN111746576A (en) | 2019-03-26 | 2019-03-26 | Guide wheel pressure adjusting device and method, bogie and railway vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910230207.0A CN111746576A (en) | 2019-03-26 | 2019-03-26 | Guide wheel pressure adjusting device and method, bogie and railway vehicle |
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| CN111746576A true CN111746576A (en) | 2020-10-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910230207.0A Pending CN111746576A (en) | 2019-03-26 | 2019-03-26 | Guide wheel pressure adjusting device and method, bogie and railway vehicle |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3119349A (en) * | 1959-05-13 | 1964-01-28 | Pneuways Dev Company Private L | Track-mounted transport means or systems |
| CN105035098A (en) * | 2015-06-25 | 2015-11-11 | 施曼特意大利有限责任公司 | Monorail train and monorail traffic system controllable in adhesive force |
| CN106337848A (en) * | 2016-09-26 | 2017-01-18 | 东洋重工机（大连）有限公司 | Hydraulic power unit |
| CN106985875A (en) * | 2016-12-29 | 2017-07-28 | 比亚迪股份有限公司 | Rail vehicle and the guide wheel device for rail vehicle |
| CN108545093A (en) * | 2018-04-11 | 2018-09-18 | 中车株洲电力机车有限公司 | A kind of track train and its hydraulic lift system |
-
2019
- 2019-03-26 CN CN201910230207.0A patent/CN111746576A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3119349A (en) * | 1959-05-13 | 1964-01-28 | Pneuways Dev Company Private L | Track-mounted transport means or systems |
| CN105035098A (en) * | 2015-06-25 | 2015-11-11 | 施曼特意大利有限责任公司 | Monorail train and monorail traffic system controllable in adhesive force |
| CN106337848A (en) * | 2016-09-26 | 2017-01-18 | 东洋重工机（大连）有限公司 | Hydraulic power unit |
| CN106985875A (en) * | 2016-12-29 | 2017-07-28 | 比亚迪股份有限公司 | Rail vehicle and the guide wheel device for rail vehicle |
| CN108545093A (en) * | 2018-04-11 | 2018-09-18 | 中车株洲电力机车有限公司 | A kind of track train and its hydraulic lift system |
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