Railway vehicle wheel set measuring, positioning and rotating mechanism

Abstract

The utility model discloses a railway vehicle wheel set measuring, positioning and rotating mechanism, which belongs to the technical field of railway vehicle wheel set measurement, aims to solve the problems of rotation eccentricity and large measurement deviation caused by unstable movement during detection due to the fact that a shaft body is driven to rotate to enable a wheel set to rotate, and comprises a base and a mounting frame. The mounting rack is mounted on the surface of the base, a track for supporting a wheel set to be measured is mounted on the base below the mounting rack, center holes are formed in two ends of the wheel set to be measured, the wheel set is tightly propped and fixed by centers in the positioning driven end and the positioning driving end, and then the wheel set is positioned through the positioning driving end. According to the technical scheme, the wheel set to be detected is driven to rotate, so that the wheel set to be detected is detected, a traditional driving structure is replaced, the influence of the precision of the axial surface on a precision groove of the wheel set is avoided, and the problems of eccentric rotation and unstable movement during detection are solved.

Description

Technical Field

[0001] The utility model discloses a railway vehicle wheelset measurement, positioning and rotating mechanism. The utility model belongs to the technical field of railway vehicle wheelset measurement, and particularly relates to the technical field of railway vehicle wheelset measurement, positioning and rotating mechanism. Background Art

[0002] The existing technology generally positions the wheelset axle body by using a cylinder to lift the axle body, lifting the wheelset to the upper limit, and then using a motor to drive the wheel to rub the wheelset axle body to rotate it, thereby completing the entire positioning and rotation action.

[0003] The defects are low axle body processing accuracy, low positioning accuracy when the axle body is positioned, and the wheelset is processed on a lathe with the centers at both ends for positioning and turning. After the axle body is positioned, the coaxiality of the axle diameter and the axle body cannot be guaranteed. The eccentric rotation and unstable movement lead to large measurement deviations. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the existing defects and provide a railway vehicle wheelset measurement and positioning rotation mechanism, thereby solving the problem of large measurement deviation caused by rotation eccentricity and unstable movement during detection by driving the axle body to rotate and then causing the wheelset to rotate.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] A railway vehicle wheelset measurement, positioning and rotation mechanism comprises a base and a mounting frame, wherein the mounting frame is mounted on the surface of the base, a rail for supporting the wheelset to be measured is mounted on the base below the mounting frame, and top holes are provided at both ends of the wheelset to be measured. A positioning driven end is mounted on one side of the mounting frame at the position of the top hole on one end of the wheelset to be measured, and a positioning driving end is mounted on the other side of the mounting frame at the position of the top hole on the other end of the wheelset to be measured.

[0007] As an optimal technical solution of the present invention, the positioning driven end includes a support sleeve 1 installed inside the mounting frame, a connecting sleeve is fixed to the surface of the support sleeve 1 away from the wheelset to be measured by bolts, a connecting sleeve 1 is slidably installed inside the connecting sleeve, one end of the connecting sleeve 1 is arranged inside the connecting sleeve, a rotary top is rotatably installed inside the connecting sleeve 1 in the connecting sleeve, a secondary positioning cylinder is installed outside the connecting sleeve, the top end of the secondary positioning cylinder is arranged inside the connecting sleeve 1, and a connecting hole is opened inside the connecting sleeve 1 at a position corresponding to the top end of the secondary positioning cylinder.

[0008] As an optimal technical solution of the present invention, the positioning drive end includes a supporting sleeve 2 installed inside the mounting frame, a connecting sleeve 2 is slidably installed inside the supporting sleeve 2, and a driving top is installed inside the connecting sleeve 2 through a bearing.

[0009] As an optimal technical solution of the present invention, a mounting sleeve is fixed to the surface of the support sleeve 2 away from the wheelset to be measured by bolts, and a main positioning cylinder is installed on the outside of the mounting sleeve. The output shaft of the main positioning cylinder passes through and extends to the interior of the mounting sleeve and is connected to a motor sliding retaining seat. The motor sliding retaining seat is slidably arranged inside the mounting sleeve, and a hydraulic motor is installed on the surface of the motor sliding retaining seat corresponding to the wheelset to be measured. The end of the driving tip away from the wheelset to be measured passes through and extends to the outside of the mounting sleeve and is connected to the output shaft of the hydraulic motor through a coupling.

[0010] Compared with the prior art, the beneficial effect of the present invention is that the wheelset is tightened and fixed by the center point in the positioning driven end and the positioning driving end, and then the wheelset to be measured is driven to rotate by working through the positioning driving end, so as to perform the detection operation on the wheelset to be measured, thereby replacing the traditional driving structure, thereby avoiding the influence of the accuracy of the axial surface on the precision groove of the wheelset, so that the problems of rotation eccentricity and unstable movement will not occur during detection. Moreover, the center hole is used for positioning, the processing reference and the measurement reference are unified, which reduces the subsequent measurement error, and the rotation is smooth and reliable, with little impact on subsequent measurement. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a front view of the utility model;

[0012] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model;

[0013] Figure 3 It is a top view of the utility model;

[0014] Figure 4 This is a partial enlarged view of the A1 end of the present utility model;

[0015] 1-base; 2-mounting frame; 3-wheel set to be measured; 31-center hole; 4-track; 5-positioning driven end; 51-support sleeve 1; 52-rotating center; 53-connecting sleeve; 54-auxiliary positioning cylinder; 55-connecting sleeve 1; 6-positioning driving end; 61-support sleeve 2; 62-driving center; 63-mounting sleeve; 64-hydraulic motor; 65-coupling; 66-motor sliding retaining seat; 67-main positioning cylinder; 68-connecting sleeve 2; 69-bearing. DETAILED DESCRIPTION

[0016] 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 embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0017] See also Figure 1-4 , the utility model provides a technical solution:

[0018] A railway vehicle wheelset measurement, positioning and rotation mechanism includes a base 1 and a mounting frame 2. The mounting frame 2 is mounted on the surface of the base 1. A track 4 for supporting the wheelset 3 to be measured is mounted on the base 1 below the mounting frame 2. Top holes 31 are provided at both ends of the wheelset 3 to be measured. A positioning driven end 5 is mounted on one side of the mounting frame 2 at the position of the top hole 31 on one end of the wheelset 3 to be measured. A positioning driving end 6 is mounted on the other side of the mounting frame 2 at the position of the top hole 31 on the other end of the wheelset 3 to be measured. The wheelset 3 to be measured is first fixed by the cooperation of the positioning driven end 5 and the positioning driving end 6. Then, when the detection is performed, the positioning driving end 6 works to drive the wheelset 3 to be measured to rotate, thereby performing the detection operation of the wheelset 3 to be measured.

[0019] The positioning driven end 5 includes a support sleeve 51 installed inside the mounting frame 2, and a connecting sleeve 53 is fixed to the surface of the support sleeve 51 away from the wheelset 3 to be measured by bolts, and a connecting sleeve 55 is slidably installed inside the connecting sleeve 53, and one end of the connecting sleeve 55 is arranged inside the connecting sleeve 53, and a rotary center 52 is rotatably installed in the connecting sleeve 55 in the connecting sleeve 53, and an auxiliary positioning cylinder 54 is installed outside the connecting sleeve 53, and the top of the auxiliary positioning cylinder 54 is arranged inside the connecting sleeve 55, and a connecting hole is opened inside the connecting sleeve 55 at a position corresponding to the top of the auxiliary positioning cylinder 54, and the operation of the auxiliary positioning cylinder 54 is controlled by an external electronic control device, thereby making the auxiliary positioning cylinder 54 extend, driving the driving center 62 to move toward the wheelset 3 to be measured, and finally making the rotary center 52 in close contact with the center hole 31 at one end of the wheelset 3 to be measured.

[0020] The positioning drive end 6 includes a second support sleeve 61 installed inside the mounting frame 2 , a second connecting sleeve 68 is slidably installed inside the second support sleeve 61 , and a driving tip 62 is installed inside the second connecting sleeve 68 through a bearing 69 .

[0021] The surface of the support sleeve 2 61 away from the wheelset 3 to be measured is fixed with a mounting sleeve 63 by bolts, and the outside of the mounting sleeve 63 is installed with a main positioning oil cylinder 67, and the output shaft of the main positioning oil cylinder 67 passes through and extends to the inside of the mounting sleeve 63 and is connected to a motor sliding retaining seat 66, and the motor sliding retaining seat 66 is slidably arranged inside the mounting sleeve 63. A hydraulic motor 64 is installed on the surface of the motor sliding retaining seat 66 corresponding to the wheelset 3 to be measured, and the end of the driving tip 62 away from the wheelset 3 to be measured passes through and extends to the outside of the mounting sleeve 63 and is connected to the output shaft of the hydraulic motor 64 through a coupling 65. The electronic control device controls the operation of the main positioning cylinder 67, so that the main positioning cylinder 67 is extended, thereby making the driving center point 62 in close contact with the center point hole 31 at the other end of the wheelset 3 to be measured, thereby limiting the wheelset 3 to be measured. When the wheelset 3 to be measured needs to be rotated, the hydraulic motor 64 is operated to drive the driving center point 62 to rotate under the transmission of the coupling 65. Since the rotating center point 52 and the driving center point 62 press the wheelset 3 to be measured tightly, the wheelset 3 to be measured can be driven to rotate when the driving center point 62 rotates, thereby replacing the transmission structure of the driving wheelset 3 to be measured.

[0022] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A railway vehicle wheelset measurement and positioning rotation mechanism, comprising a base (1) and a mounting frame (2), wherein the mounting frame (2) is mounted on the surface of the base (1), and a rail (4) for supporting a wheelset to be measured (3) is mounted on the base (1) below the mounting frame (2), characterized in that: A top hole (31) is provided at both ends of the wheelset to be measured (3); a positioning driven end (5) is installed on one side of the mounting frame (2) at the position of the top hole (31) on one end of the wheelset to be measured (3); and a positioning driving end (6) is installed on the other side of the mounting frame (2) at the position of the top hole (31) on the other end of the wheelset to be measured (3).

2. The railway vehicle wheelset measurement, positioning and rotation mechanism according to claim 1, characterized in that: The positioning driven end (5) includes a support sleeve (51) installed inside the mounting frame (2), a connecting sleeve (53) is fixed to the surface of the support sleeve (51) away from the wheelset (3) to be measured by bolts, a connecting sleeve (55) is slidably installed inside the connecting sleeve (53), one end of the connecting sleeve (55) is arranged inside the connecting sleeve (53), a rotary top (52) is rotatably installed inside the connecting sleeve (55) in the connecting sleeve (53), an auxiliary positioning oil cylinder (54) is installed outside the connecting sleeve (53), the top end of the auxiliary positioning oil cylinder (54) is arranged inside the connecting sleeve (55), and a connecting hole is opened inside the connecting sleeve (55) at a position corresponding to the top end of the auxiliary positioning oil cylinder (54).

3. The railway vehicle wheelset measurement, positioning and rotation mechanism according to claim 1, characterized in that: The positioning drive end (6) includes a second support sleeve (61) installed inside the mounting frame (2), a second connecting sleeve (68) is slidably installed inside the second support sleeve (61), and a driving top (62) is installed inside the second connecting sleeve (68) through a bearing (69).

4. The railway vehicle wheelset measurement, positioning and rotation mechanism according to claim 3, characterized in that: The second support sleeve (61) is fixed with a mounting sleeve (63) by bolts on the surface away from the wheelset to be measured (3), and a main positioning oil cylinder (67) is installed on the outside of the mounting sleeve (63). The output shaft of the main positioning oil cylinder (67) passes through and extends to the inside of the mounting sleeve (63) and is connected to a motor sliding retaining seat (66). The motor sliding retaining seat (66) is slidably arranged inside the mounting sleeve (63), and a hydraulic motor (64) is installed on the surface of the motor sliding retaining seat (66) corresponding to the wheelset to be measured (3). The end of the driving tip (62) away from the wheelset to be measured (3) passes through and extends to the outside of the mounting sleeve (63) and is connected to the output shaft of the hydraulic motor (64) through a coupling (65).

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