A rotating drum for automatic steering control of built-in pneumatic wheelset turntable

Abstract

The present invention discloses a rotary drum for automatic steering control of a built-in pneumatic wheelset turntable, belonging to the technical field of wheelset steering in railway wheelset production and maintenance enterprises. It comprises a cylinder column, and at least two grooves are opened on the circumference of the cylinder column for rotation, and the grooves include a first groove, a second groove and a third groove; the first groove and the third groove are connected through the second groove. The present invention improves the stability of the device operation by opening a limited stroke groove on the rotary drum, and controls the number of grooves according to the rotation angle of the rotary drum, which is flexible and variable, and increases the application range of the rotary drum.

Description

Technical Field

[0001] The invention belongs to the technical field of wheelset steering in railway wheelset production and maintenance enterprises, and in particular relates to a rotating drum for automatic steering control of a built-in pneumatic wheelset turntable. Background Art

[0002] When railway vehicle wheelset production and maintenance companies change direction through the production and maintenance lines, the turntables used are electric turntables and pneumatic turntables (also called picks). Electric turntables are expensive and have high maintenance costs; pneumatic turntables directly lift the wheelset from the middle of the axle for manual or automatic reversing. It is not suitable for the maintenance of wheelsets with gearboxes and brake discs, as well as passenger cars, urban rails and EMU depot vehicle wheelsets. At the same time, because the pick is higher than the ground, it affects the overall aesthetics of the workshop and safe production, and is gradually being eliminated by the using companies. In the design of the built-in pneumatic wheelset turntable, the design of the drum is the core technology. The optimization of the drum design will minimize the use of various electric and pneumatic devices, thereby simplifying the overall device. Summary of the invention

[0003] The object of the present invention is to provide a rotating drum for automatic steering control of a built-in pneumatic wheelset turntable, and to reduce the complexity of the overall device by optimizing the design of the rotating drum.

[0004] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0005] The present invention is a rotating cylinder for automatic steering control of a built-in pneumatic wheel pair turntable, comprising a cylinder column, at least two grooves are opened on the circumference of the cylinder column, and the grooves include a first groove, a second groove and a third groove; the first groove and the third groove are connected through the second groove.

[0006] Furthermore, there are two grooves, the grooves are "U" shaped, and the two grooves are rotationally symmetrical about the central axis of the column. The first angle formed between the plane where the groove surface of the first groove is located and the plane where the groove surface of the second groove is located is 125° to 165°; the second angle formed between the plane where the groove surface of the second groove is located and the plane where the groove surface of the third groove is located is 25° to 65°; the sum of the first angle and the second angle in the groove is 180°.

[0007] Furthermore, two grooves are provided, the second groove is arc-shaped, and the first groove and the third groove are equal in length.

[0008] Furthermore, the slot holes of the first slot and the slot holes of the third slot are positioned perpendicular to each other.

[0009] The present invention has the following beneficial effects:

[0010] The invention improves the stability of device operation by opening limited stroke grooves on the drum, and controls the number of grooves according to the rotation angle of the drum, which is flexible and increases the application range of the drum.

[0011] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0013] Figure 1 It is a structural schematic diagram of a "U"-shaped channel column of the present invention;

[0014] Figure 2 It is a schematic diagram of the development of the "U"-shaped channel column of the present invention;

[0015] Figure 3 This is a schematic diagram of the structure of the arc-shaped channel cylinder of the present invention;

[0016] Figure 4 This is a schematic diagram of the development of the arc-shaped channel cylinder of the present invention;

[0017] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0018] 1-column, 2-slot, 201-first slot, 202-second slot, 203-third slot. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] In the description of the present invention, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inside", "all around" and the like indicating orientation or positional relationship are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0021] See also Figure 1-4As shown, the present invention is a built-in pneumatic wheel-to-wheel automatic steering control drum, comprising a drum column 1,

[0022] At least two grooves 2 are opened on the circumference of the column 1, and the column 1 can rotate at different angles through the lifting limit. The grooves 2 include a first groove 201, a second groove 202 and a third groove 203; the first groove 201 and the third groove 202 are connected through the second groove 203.

[0023] There are two grooves 2, which are "U"-shaped and rotationally symmetrical about the central axis of the column 1.

[0024] The first angle formed between the plane where a groove surface of the first groove 201 is located and the plane where a groove surface of the second groove 202 is located is 125° to 165°;

[0025] The second angle formed between the plane where a groove surface of the second groove 202 is located and the plane where a groove surface of the third groove 203 is located is 25° to 65°;

[0026] The sum of the first angle and the second angle in the groove 2 is 180°.

[0027] There are two grooves 2, the second groove 202 is arc-shaped, and the first groove 201 and the third groove 203 are of equal length.

[0028] The slot holes of the first slot 201 and the slot holes of the third slot 203 are perpendicular to each other.

[0029] Embodiment 1: A "U"-shaped groove cylinder, wherein a bearing is matched between one end of the "U"-shaped groove cylinder and a piston rod of a hydraulic lift, and four hydraulic telescopic limit rods are arranged on the circumference of the "U"-shaped groove cylinder corresponding to the first groove 201 or the third groove 203, and two adjacent four hydraulic telescopic limit rods are vertically positioned, and two relative hydraulic telescopic limit rods act simultaneously;

[0030] When in use, in the initial state: one of the two hydraulic telescopic limit rods is in an extended state and is simultaneously engaged with one end of one groove in the first groove 201 or the second groove 202, and the other two are in a retracted state;

[0031] In the steering state, the hydraulic lift is controlled at this time, the "U"-shaped groove cylinder moves upward, and the hydraulic telescopic limit rod in the extended state moves relatively along the groove of the first groove 201. When the hydraulic telescopic limit rod is located in the second groove 202, the second groove 202 interacts with the hydraulic telescopic limit rod, and the stationary hydraulic telescopic limit rod will cause the cylinder to rotate. The first groove 201 and the third groove 203 are perpendicular to each other, that is, when the hydraulic telescopic limit rod moves from one end of the second groove 202 to the other end, the cylinder rotates 90°;

[0032] In the reset state, when the hydraulic lift reaches the maximum set stroke, it will be reset, that is, the cylinder 1 is controlled to move downward, and the third groove 203 moves downward along the hydraulic telescopic limit rod to the other end, completing the reset of the longitudinal height of the cylinder;

[0033] In the cycle state, the hydraulic telescopic limit rod in the reset state is retracted, and the other two hydraulic telescopic limit rods in the contracted state are extended to cooperate with the first groove 201, and the hydraulic lift is started again to work. The above state is installed to control the cycle reciprocating steering work.

[0034] Embodiment 2: arc-shaped groove cylinder, the second groove 202 is an arc-shaped groove, a bearing is matched between one end of the arc-shaped groove cylinder and the piston rod of a hydraulic lift, and four hydraulic telescopic limit rods are arranged on the circumference of the arc-shaped groove cylinder corresponding to the first groove 201 or the third groove 203, two adjacent four hydraulic telescopic limit rods are vertically positioned, and two relative hydraulic telescopic limit rods act simultaneously;

[0035] Initial state: one of the two hydraulic telescopic limit rods is in an extended state and is engaged with one end of one of the first groove 201 or the second groove 202, and the other two are in a retracted state;

[0036] Steering state, at this time, the hydraulic lift is controlled, the arc-shaped groove cylinder moves upward, and the hydraulic telescopic limit rod in the extended state moves relative to the groove of the first groove 201. When the hydraulic telescopic limit rod is located in the second groove 202, the second groove 202 interacts with the hydraulic telescopic limit rod. The stationary hydraulic telescopic limit rod will cause the cylinder 1 to rotate. When the end of the hydraulic telescopic limit rod moves to the lowest end of the arc-shaped second groove 202, the hydraulic lift is promptly controlled to move upward. During the rotation, the arc-shaped groove cylinder passes through the bending point of the arc-shaped second groove by inertia, and then continues to interact with the hydraulic telescopic limit rod through the arc-shaped second groove to continuously interact with the arc-shaped groove cylinder, so that the arc-shaped groove cylinder changes from an upward rising rotation to a downward rising rotation. The first groove 201 and the third groove 203 are perpendicular to each other, that is, when the hydraulic telescopic limit rod moves from one end of the second groove 202 to the other end, the cylinder rotates 90°.

[0037] In the reset state, when the hydraulic lift reaches the maximum set stroke, it will reset, that is, move along the turning point of the second groove 202 to the third groove 203, and the third groove 203 moves downward along the hydraulic telescopic limit rod to the other end, completing the reset of the longitudinal height of the column;

[0038] In the cycle state, the hydraulic telescopic limit rod in the reset state is retracted, and the other two hydraulic telescopic limit rods in the contracted state are extended to cooperate with the first groove, and the hydraulic lift is started again to work. The above state is installed to control the reciprocating steering work in the cycle.

[0039] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0040] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A rotating drum for automatic steering control of a built-in pneumatic wheel-to-wheel turntable, comprising a cylinder column (1), characterized in that: At least two grooves (2) are formed on the circumference of the column (1), and the grooves (2) include a first groove (201), a second groove (202), and a third groove (203); the first groove (201) and the third groove (203) are connected through the second groove (202); The grooves (2) are provided with two, the grooves (2) are in a "U" shape, and the two grooves (2) are rotationally symmetrical about the central axis of the cylinder (1); Wherein, a first angle formed between a plane where a groove surface of the first groove (201) is located and a plane where a groove surface in the second groove (202) is located is 125° to 165°; Wherein, a second angle formed between a plane where a groove surface of the second groove (202) is located and a plane where a groove surface in the third groove (203) is located is 25° to 65°; The sum of the first angle and the second angle in the groove (2) is 180°; When in use, in the initial state: one of the two relatively hydraulic telescopic limit rods is in an extended state and is simultaneously engaged with one end of a slot in the first slot (201) or the second slot (202), and the other two are in a retracted state; In the turning state, the hydraulic lift is controlled, the "U"-shaped groove cylinder moves upward, and the hydraulic telescopic limit rod in the extended state moves relatively along the groove of the first groove (201). When the hydraulic telescopic limit rod is located in the second groove (202), the second groove (202) and the hydraulic telescopic limit rod interact with each other, and the stationary hydraulic telescopic limit rod will cause the cylinder to rotate. The first groove (201) and the third groove (203) are parallel to each other in position, that is, when the hydraulic telescopic limit rod moves from one end of the second groove (202) to the other end, the cylinder rotates 90°; In the reset state, when the hydraulic lift reaches the maximum set stroke, it will be reset, that is, the cylinder (1) is controlled to move downward, and the third groove (203) moves downward along the hydraulic telescopic limit rod to the other end, completing the reset of the longitudinal height of the cylinder; In the cycle state, the hydraulic telescopic limit rod in the reset state is retracted, and the other two hydraulic telescopic limit rods in the contracted state are extended to cooperate with the first groove (201), and the hydraulic lift is started again to work. The above state is installed to control the cycle reciprocating steering work.

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