An anti-roll device

Abstract

The application discloses an anti-rolling device, which comprises a first telescopic rod, a second telescopic rod and a tension-compression rod, the first telescopic rod is vertically installed on one side of a bogie and a vehicle body, the second telescopic rod and the tension-compression rod are vertically installed on the other side of the bogie and the vehicle body, two ends of the first telescopic rod are respectively hinged to the vehicle body and the bogie, one end of the second telescopic rod is hinged to the vehicle body, the other end is hinged to one end of a swing arm, the other end of the swing arm is hinged to the bogie, one end of the tension-compression rod is hinged to the middle part of the swing arm, the other end of the tension-compression rod is hinged to the vehicle body, and the inner cavities of the first telescopic rod and the second telescopic rod are respectively communicated with the pressure medium cavities of pressure medium cylinders through pipelines, a piston is installed in the pressure medium cylinder, one side of the piston is arranged as the pressure medium cavity, and the other side is provided with a spring. The application cancels the difficult-to-install torsion bar, but still can realize the anti-rolling and does not limit the floating and sinking movement of the vehicle body.

Description

Technical Field

[0001] The invention relates to a rail transit vehicle bogie, in particular to an anti-rolling device. Background Art

[0002] The anti-roll device of the traditional rail transit vehicle bogie relies on the reaction force generated by the torsional deformation of the torsion bar to limit the roll angle of the vehicle body, while leaving the sinking and floating movement of the vehicle body unaffected.

[0003] like Figure 1 As shown, a conventional anti-roll device typically consists of two links (a) and a torsion bar (b) connected between the two links. The torsion bar (b) is relatively long and mounted on the vehicle body or bogie. Due to space limitations, the torsion bar is difficult to install and may interfere with other features on the vehicle body or bogie. Summary of the Invention

[0004] The technical problem to be solved by the present invention is that, in view of the shortcomings that the torsion bar of the anti-roll device is difficult to install and easily interferes with the vehicle body or the bogie, the present invention provides an anti-roll device that eliminates the torsion bar but can still achieve anti-roll without restricting the floating and sinking movement of the vehicle body.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0006] 14. The swiftly and minutely adjusting device for a wood-planer working table as claimed in claim 13, wherein said linking rod and said adjusting base are pivotally connected to each other with respect to the front of said frame, and said linking rod and said adjusting base are pivotally connected to each other with respect to the front of said frame.

[0007] Preferably, the first telescopic rod, the second telescopic rod, and the tension and compression rods are respectively installed on the outside of the bogie.

[0008] Preferably, one end of the spring is connected to the piston, and the other end is connected to the cylinder body of the pressure medium cylinder.

[0009] Preferably, the pressure medium is liquid or gas.

[0010] The first and second telescopic rods can change in length with the movement of the car body relative to the bogie. If the distance between the car body and the bogie increases, the first and second telescopic rods are elongated. If the distance between the car body and the bogie decreases, the first and second telescopic rods are shortened. When the car body rolls relative to the bogie, the first and second telescopic rods are simultaneously elongated or shortened due to the existence of the fixed-length tension-compression rods and the swing arm, so that the spring in the pressure medium cylinder is compressed or stretched, the spring generates a counter force to make the pressure medium move reversely and limit the roll movement of the car body relative to the bogie. When the car body floats relative to the bogie, the first telescopic rod is elongated / shortened, the distance between the swing arm and the bogie and the car body increases / decreases, the second telescopic rod is shortened / elongated, the pressure medium in the pressure medium cylinder is not relaxed / compressed, the pressure medium flows freely in the second telescopic rod, the first telescopic rod and the pipeline, and the spring is not deformed, so that the present application does not limit the floating movement of the car body relative to the bogie.

[0011] Compared with the prior art, the present application has the following advantages:

[0012] 1. The present application limits the roll movement of the car body relative to the bogie, and does not limit the floating movement of the car body relative to the bogie.

[0013] 2. The present application cancels the torsion bar of the traditional anti-roll device, so that the problems of arrangement and installation of the torsion bar are solved, and the pipeline and the pressure medium cylinder have no special requirements for the installation position, and can be arranged more flexibly according to the structure of the bogie and the car body. BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without any creative effort on the basis of these drawings.

[0015] Figure 1 It is a structural diagram of the traditional anti-roll device.

[0016] Figure 2 It is a three-dimensional structural schematic diagram of the anti-roll device of the present application.

[0017] Figure 3 It is a principle diagram of the anti-roll device of the present application.

[0018] In the figure: 1, second telescopic rod; 2, first telescopic rod; 3, tension and compression rod; 4, swing arm; 5, pipeline; 6, pressure medium cylinder; 6-1, piston; 6-2, spring; 7, bogie; 8, vehicle body. DETAILED DESCRIPTION

[0019] The application will be further described below in connection with specific preferred embodiments, but the scope of protection of the application is not limited by the same.

[0020] In the description of the application, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the application. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0021] In the description of the application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected; it can be directly connected, or indirectly connected through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the application can be understood according to the specific circumstances.

[0022] Please refer to Figure 2 , Figure 3The anti-rolling device of the present application comprises a first telescopic rod 2, a second telescopic rod 1 and a tension-compression rod 3 which are respectively arranged on the outer side of the bogie 7, wherein the first telescopic rod 2 and the second telescopic rod 1 can be elongated or shortened under the action of pressure medium and can also be elongated or shortened along with the relative movement between the vehicle body and the bogie, and the length of the tension-compression rod 3 is fixed. The first telescopic rod 2 is vertically arranged on one side of the bogie 7 and the vehicle body 8, and the second telescopic rod 1 and the tension-compression rod 3 are vertically arranged on the other side of the bogie 7 and the vehicle body 8. The two ends of the first telescopic rod 2 are respectively hinged to the vehicle body 8 and the bogie 7, one end of the second telescopic rod 1 is hinged to the vehicle body 8, and the other end is hinged to one end of the swing arm 4, the other end of the swing arm 4 is hinged to the bogie 7, one end of the tension-compression rod 3 is hinged to the middle part of the swing arm 4, and the other end is hinged to the vehicle body 8, and the inner cavities of the first telescopic rod 2 and the second telescopic rod 1 are respectively communicated with the pressure medium cavity of the pressure medium cylinder 6 through the pipeline 5, a piston 6-1 is arranged in the pressure medium cylinder 6, one side of the piston 6-1 is arranged as the pressure medium cavity, and the other side is provided with a spring 6-2. One end of the spring 32 is connected with the piston 6-1, and the other end is connected with the cylinder body of the pressure medium cylinder 6.

[0023] The technical concept of the anti-rolling device of the present application is as follows:

[0024] 1) The second telescopic rod 1, the first telescopic rod 2 and the tension-compression rod 3 are vertically arranged on both sides of the longitudinal center line of the bogie. The upper and lower ends of the first telescopic rod 2 are respectively hinged to the vehicle body 8 and the bogie 7, the upper ends of the second telescopic rod 1 and the tension-compression rod 3 are hinged to the vehicle body 8, and the lower ends of the second telescopic rod 1 and the tension-compression rod 3 are respectively hinged to one end and the middle position of the swing arm 4, and the other end of the swing arm 4 is hinged to the bogie 7.

[0025] 2) When the vehicle body 8 has a rolling motion relative to the bogie 7, the first telescopic rod 2 will be elongated or shortened because the two ends of the first telescopic rod 2 are directly hinged to the vehicle body 8 and the bogie 7, the distance between the hinged point B of the swing arm 4 on the other side of the bogie 7 and the vehicle body 8 will be shortened or elongated by an equal amount, the length of the tension-compression rod 3 is fixed because the lower part of the tension-compression rod 3 is hinged to the middle position of the swing arm 4, and the second telescopic rod 1 will be elongated or shortened by an equal amount with the first telescopic rod 2 according to the lever action.

[0026] 3) When the second telescopic rod 1 and the first telescopic rod 2 are elongated or shortened by equal amount, the second telescopic rod 1 and the first telescopic rod 2 will relax or compress the pressure medium in the pressure medium cylinder 6. The piston 6-1 in the pressure medium cylinder 6 will move along the pressure medium cylinder 6 under the action of the pressure medium. The spring 6-2 has two ends connected with the piston 6-1 and the cylinder body respectively, thus the spring 6-2 will be deformed to stretch or compress. The reaction force generated by the deformation of the spring 6-2 is transmitted to the second telescopic rod 1 and the first telescopic rod 2 through the piston 6-1 and the pressure medium, thus limiting the elongation or shortening of the second telescopic rod 1 and the first telescopic rod 2, i.e. an anti-rolling moment is generated between the car body 8 and the bogie 7.

[0027] 4) Conversely, when the car body 8 moves up and down relative to the bogie 7, the first telescopic rod 2 will be elongated or shortened accordingly since its two ends are directly hinged to the car body 8 and the bogie 7, and the distance between the swing arm 4 on the other side of the bogie 7 and the hinged point B of the bogie 7 to the car body 8 will also be elongated or shortened by equal amount. Since the lower part of the tension-compression rod 3 and the middle position of the swing arm 4 are hinged, the length of the tension-compression rod 3 is fixed, and according to the lever action, the second telescopic rod 1 will be shortened or elongated by equal amount. In this way, the pressure medium in the pressure medium cylinder 6 will not be relaxed or compressed, and the pressure medium will flow freely in the second telescopic rod 1, the first telescopic rod 2 and the pipeline 5 without driving the piston 6-1 to move and without deforming the spring 6-2, thus not limiting the up-and-down movement of the car body 8 relative to the bogie 7.

[0028] It should be noted that the pressure medium in the present application can be liquid or gas. The second telescopic rod 1 and the first telescopic rod 2 preferably adopt hydraulic rods.

[0029] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited thereto, any person skilled in the art can make many possible changes and modifications to the technical solution of the present application or modify it into equivalent embodiments with equivalent changes without departing from the scope of the technical solution of the present application, thus any simple modification, equivalent change and modification made to the above embodiment according to the technical essence of the present application should fall within the protection scope of the technical solution of the present application.

Claims

1. An anti-roll device, characterized in that: The cam is connected to the chassis and the chassis is connected to the support frame, and the cam is connected to the support frame by the support frame.

2. The anti-roll device according to claim 1, characterized in that: The first telescopic rod, the second telescopic rod, and the tension and compression rods are respectively installed on the outside of the bogie.

3. The anti-roll device according to claim 1, characterized in that: One end of the spring is connected to the piston, and the other end is connected to the cylinder body of the pressure medium cylinder.

4. The anti-roll device according to any one of claims 1 to 3, characterized in that: The pressure medium is liquid or gas.

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