Railway motor train unit bearing press-fitting assembling device

Abstract

The invention discloses a railway motor train unit bearing press-fitting assembling device, and belongs to the technical field of bearing press-fitting, the railway motor train unit bearing press-fitting assembling device comprises a base, a transmission bin and two positioning mechanisms, the transmission bin is arranged in the base, the positioning mechanisms are arranged at the upper end of the base, and the two positioning mechanisms are symmetrically arranged at the upper end of the base. According to the bearing press-fitting assembling device for the railway motor train unit, by arranging the positioning mechanism, when people need to position a bearing to be press-fitted, the bearing to be press-fitted only needs to be in lap joint with the interior of a first positioning clamp, then a first threaded column is driven to rotate by rotating a rotary knob, and under the cooperation of the first threaded column and a threaded pipe, the bearing to be press-fitted is positioned; and when the first positioning clamp and the second positioning clamp complete positioning of the bearing needing press fitting, people only need to stop rotating the rotary knob, so that the purpose of positioning the bearing needing press fitting is achieved, and the practicability of the device is improved.

Description

Technical Field

[0001] The invention relates to the technical field of bearing press-fitting, and more specifically, to a railway EMU bearing press-fitting assembly device. Background Art

[0002] The wheelset bearing axle box device is the core component of the bogie, which mainly bears all the loads and impacts of the interaction between the car body and the track, and transmits traction and braking force. In the wheelset bearing axle box device, the rolling bearing is a key component, supporting the high-speed rotation of the wheelset. Therefore, the quality of the bearing press-fitting directly affects the manufacturing quality and driving safety of the bogie.

[0003] In the prior art, the axle box bearing assembly method mainly uses pressure to press the bearings onto both ends of the shaft. However, the existing device is inconvenient when positioning the bearings, which affects people's work efficiency. To solve the above problems, we have introduced the following device. Summary of the invention

[0004] (1) Technical issues to be solved

[0005] In view of the shortcomings of the prior art, the object of the present invention is to provide a railway EMU bearing press-fit assembly device, which has the characteristic of facilitating the positioning of the bearing.

[0006] (2) Technical solution

[0007] To achieve the above-mentioned purpose, the present invention provides a railway EMU bearing press-fitting assembly device, comprising a base, a transmission compartment and a positioning mechanism, the transmission compartment is opened inside the base, the positioning mechanism is arranged at the upper end of the base, there are two groups of the positioning mechanisms and they are symmetrically arranged at the upper end of the base, the positioning mechanism comprises a support platform, the support platform is arranged at the upper end of the base, the upper surface of the support platform is fixedly connected with a support frame, a first bearing is passed through the surface of the support frame, a first rotating shaft is passed through the first bearing, a knob is fixedly connected to the upper end of the first rotating shaft, a first threaded column is fixedly connected to the lower end of the first rotating shaft, a threaded tube is threadedly connected to the lower end of the first threaded column, a movable platform is fixedly connected to the upper surface of the support platform, a second positioning clamp is inlaid on the lower surface of the movable platform, the first positioning clamp and the second positioning clamp match, the upper surface of the base is fixedly connected with a fixed platform, a positioning seat is arranged at the upper end of the fixed platform, a shaft body is arranged inside the positioning seat, and the position of the shaft body corresponds to the position of the positioning mechanism.

[0008] When using a railway EMU bearing press-fitting assembly device of the present technical solution, by setting a positioning mechanism, when people need to position the bearing to be press-fitted, they only need to overlap the bearing to be press-fitted inside the first positioning clamp, and then turn the knob to drive the first threaded column to rotate, and with the cooperation of the first threaded column and the threaded tube, the movable platform carrying the second positioning clamp is driven to move. When the first positioning clamp and the second positioning clamp have completed positioning of the bearing to be press-fitted, people only need to stop turning the knob, thereby achieving the purpose of positioning the bearing to be press-fitted, thereby improving the practicability of the device, and at the same time, with the cooperation of the sliding rod and the sliding sleeve, the movable platform can be moved in a directional manner during the movement.

[0009] Furthermore, a dual-axis motor is fixedly connected inside the transmission warehouse, and the other end of the output shaft of the dual-axis motor is fixedly connected to a second threaded column, and the other end of the second threaded column is fixedly connected to a second rotating shaft. A second bearing is fixedly connected to the inner wall of the transmission warehouse, and the other end of the second rotating shaft is inserted into the second bearing. A second threaded nut is threadedly connected to the surface of the second threaded column, and a connecting rod is fixedly connected to the side of the second threaded nut. A movable groove is opened on the surface of the transmission warehouse, and the connecting rod is inserted in the movable groove, and the upper end of the connecting rod is fixedly connected to the lower surface of the support platform.

[0010] Furthermore, a sliding sleeve is provided on the surface of the movable platform, a sliding rod is fixedly connected to the upper surface of the support platform, the upper end of the sliding rod is fixedly connected to the lower surface of the support frame, the sliding sleeve is slidably connected to the surface of the sliding rod, and there are two groups of sliding rods and sliding sleeves, which are symmetrically arranged on both sides of the movable platform.

[0011] Furthermore, a slider is fixedly connected to the lower surface of the support platform, a slide groove is provided on the upper surface of the base, the slider is slidably connected in the slide groove, and there are two groups of sliders and slide grooves, which are symmetrically arranged at the lower end of the support platform.

[0012] Furthermore, a control switch is fixedly connected to the front side of the base.

[0013] (3) Beneficial effects

[0014] In summary, the present invention has the following beneficial effects:

[0015] 1. A bearing press-fitting assembly device for a railway EMU, by setting a positioning mechanism, when people need to position the bearing to be press-fitted, they only need to overlap the bearing to be press-fitted inside the first positioning clamp, and then turn the knob to drive the first threaded column to rotate, and under the cooperation of the first threaded column and the threaded tube, the movable table carrying the second positioning clamp is driven to move. When the first positioning clamp and the second positioning clamp have completed the positioning of the bearing to be press-fitted, people only need to stop turning the knob, so as to achieve the purpose of positioning the bearing to be press-fitted, thereby improving the practicality of the device, and at the same time, under the cooperation of the sliding rod and the sliding sleeve, the movable table can be directional moved during the movement;

[0016] 2. This kind of railway EMU bearing press-fitting assembly device is equipped with a dual-axis motor, a second threaded column and a threaded nut. When people need to press-fit, they only need to control the operation of the dual-axis motor through a control switch to drive the second threaded column to rotate. With the cooperation of the second threaded column and the threaded nut, the positioning mechanism carrying the bearing to be press-fitted is driven to move, thereby pressing the bearing to be press-fitted on the surface of the shaft body. With the cooperation of the slider and the slide groove, the positioning mechanism can be moved in a directional manner to avoid jamming of the positioning mechanism during movement. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the specific implementation of the present invention or the technical solution in the prior art, the drawings required for describing the specific implementation or the prior art will be briefly introduced below. Obviously, the drawings described below are only one implementation of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a schematic diagram of the structure of the present invention in a frontal stereoscopic cross-section;

[0019] Figure 2 It is a schematic diagram of the structure of the present invention in a front view;

[0020] Figure 3 It is a schematic diagram of a three-dimensionally enlarged structure of the positioning mechanism in the present invention.

[0021] The markings in the accompanying drawings are:

[0022] 1. Base; 2. Transmission compartment; 3. Positioning mechanism; 301. Support platform; 302. Support frame; 303. First bearing; 304. First rotating shaft; 305. Knob; 306. First threaded column; 307. Threaded tube; 308. Movable platform; 309. First positioning clamp; 310. Second positioning clamp; 311. Slide rod; 312. Slide sleeve; 4. Fixed platform; 5. Positioning seat; 6. Shaft body; 7. Sliding block; 8. Slide groove; 9. Dual-axis motor; 10. Second threaded column; 11. Second rotating shaft; 12. Second bearing; 13. Threaded cap; 14. Connecting rod; 15. Movable groove; 16. Control switch. DETAILED DESCRIPTION

[0023] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the technical scheme in the specific implementation mode of the present invention is clearly and completely described below to further illustrate the present invention. Obviously, the specific implementation mode described is only a part of the implementation mode of the present invention, rather than all styles.

[0024] Example:

[0025] The following is combined with Figure 1-3 The present invention is described in further detail.

[0026] See also Figure 1-3 The present invention provides a technical solution: a railway EMU bearing press-fitting assembly device, comprising a base 1, a transmission compartment 2 and a positioning mechanism 3, wherein the transmission compartment 2 is arranged inside the base 1, the positioning mechanism 3 is arranged at the upper end of the base 1, and there are two groups of positioning mechanisms 3, which are symmetrically arranged at the upper end of the base 1, and the positioning mechanism 3 comprises a support platform 301, the support platform 301 is arranged at the upper end of the base 1, a support frame 302 is fixedly connected to the upper surface of the support platform 301, a first bearing 303 is penetrated on the surface of the support frame 302, a first rotating shaft 304 is penetrated in the first bearing 303, and a knob is fixedly connected to the upper end of the first rotating shaft 304 305, the lower end of the first rotating shaft 304 is fixedly connected with the first threaded column 306, the lower end of the first threaded column 306 is threadedly connected with the threaded tube 307, the lower end of the threaded tube 307 is fixedly connected with the movable platform 308, the upper surface of the support platform 301 is inlaid with the first positioning clamp 309, the lower surface of the movable platform 308 is inlaid with the second positioning clamp 310, the first positioning clamp 309 and the second positioning clamp 310 match, the upper surface of the base 1 is fixedly connected with the fixed platform 4, the upper end of the fixed platform 4 is provided with a positioning seat 5, the interior of the positioning seat 5 is provided with a shaft 6, and the position of the shaft 6 corresponds to the position of the positioning mechanism 3.

[0027] By adopting the above technical scheme, the railway EMU bearing press-fitting assembly device, by setting the positioning mechanism 3, when people need to position the bearing to be press-fitted, they only need to overlap the bearing to be press-fitted inside the first positioning clamp 309, and then rotate the knob 305 to drive the first threaded column 306 to rotate, and with the cooperation of the first threaded column 306 and the threaded tube 307, the movable platform 308 carrying the second positioning clamp 310 is driven to move. When the first positioning clamp 309 and the second positioning clamp 310 have completed the positioning of the bearing to be press-fitted, people only need to stop rotating the knob 305, so as to achieve the purpose of positioning the bearing to be press-fitted, thereby improving the practicability of the device, and at the same time, with the cooperation of the sliding rod 311 and the sliding sleeve 312, the movable platform 308 is stuck during the movement.

[0028] Specifically, a dual-axis motor 9 is fixedly connected inside the transmission warehouse 2, and the other end of the output shaft of the dual-axis motor 9 is fixedly connected to a second threaded column 10, and the other end of the second threaded column 10 is fixedly connected to a second rotating shaft 11. A second bearing 12 is fixedly connected to the inner wall of the transmission warehouse 2, and the other end of the second rotating shaft 11 is passed through the second bearing 12. The surface of the second threaded column 10 is threadedly connected to a second threaded cap 13, and the side of the second threaded cap 13 is fixedly connected to a connecting rod 14. A movable groove 15 is opened on the surface of the transmission warehouse 2, and the connecting rod 14 is passed through the movable groove 15. The upper end of the connecting rod 14 is fixedly connected to the lower surface of the support platform 301.

[0029] By adopting the above technical solution, a railway EMU bearing press-fitting assembly device is provided with a dual-axis motor 9, a second threaded column 10 and a threaded cap 13. When people need to perform press-fitting, they only need to control the dual-axis motor 9 through the control switch 16 to drive the second threaded column 10 to rotate. With the cooperation of the second threaded column 10 and the threaded cap 13, the positioning mechanism 3 carrying the bearing to be press-fitted is driven to move, so that the bearing to be press-fitted is press-fitted on the surface of the shaft body 6. With the cooperation of the slider 7 and the slide groove 8, the positioning mechanism 3 can be moved in a directional manner to avoid jamming of the positioning mechanism 3 during movement.

[0030] Specifically, a sliding sleeve 312 is provided on the surface of the movable platform 308, a sliding rod 311 is fixedly connected to the upper surface of the support platform 301, the upper end of the sliding rod 311 is fixedly connected to the lower surface of the support frame 302, the sliding sleeve 312 is slidably connected to the surface of the sliding rod 311, and there are two groups of sliding rods 311 and sliding sleeves 312, which are symmetrically arranged on both sides of the movable platform 308.

[0031] Specifically, a slider 7 is fixedly connected to the lower surface of the support platform 301 , a slide groove 8 is provided on the upper surface of the base 1 , and the slider 7 is slidably connected in the slide groove 8 . There are two groups of sliders 7 and slide grooves 8 , and they are symmetrically arranged at the lower end of the support platform 301 .

[0032] Specifically, a control switch 16 is fixedly connected to the front side of the base 1 .

[0033] The working principle of the present invention is as follows: when in use, people first move the device to a position suitable for the use of the device, and then electrically connect the device to an external power supply. When people need to position the bearing to be press-fitted, they only need to overlap the bearing to be press-fitted inside the first positioning clamp 309, and then rotate the knob 305 to drive the first threaded column 306 to rotate. With the cooperation of the first threaded column 306 and the threaded tube 307, the movable platform 308 carrying the second positioning clamp 310 is driven to move. When the first positioning clamp 309 and the second positioning clamp 310 have completed positioning of the bearing to be press-fitted, people only need to stop rotating the knob 305, thereby achieving the desired positioning. The purpose of positioning the bearings that need to be pressed in is to improve the practicality of the device. At the same time, with the cooperation of the slide rod 311 and the sleeve 312, the movable table 308 is prevented from getting stuck during the movement. When people need to press in, they only need to control the operation of the dual-axis motor 9 through the control switch 16, thereby driving the second threaded column 10 to rotate. With the cooperation of the second threaded column 10 and the threaded cap 13, the positioning mechanism 3 carrying the bearings that need to be pressed in is driven to move, thereby pressing the bearings that need to be pressed in on the surface of the shaft body 6. With the cooperation of the slider 7 and the slide groove 8, the positioning mechanism 3 can be moved in a directional manner to avoid the positioning mechanism 3 from getting stuck during the movement.

[0034] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed. However, as long as they are within the scope of the claims of the present invention, they are protected by the patent law.

Claims

1. A railway EMU bearing press-fit assembly device, comprising a base (1), a transmission compartment (2) and a positioning mechanism (3), characterized in that: The transmission bin (2) is disposed inside the base (1); the positioning mechanism (3) is disposed at the upper end of the base (1); there are two groups of the positioning mechanism (3) which are symmetrically disposed at the upper end of the base (1); the positioning mechanism (3) comprises a support platform (301); the support platform (301) is disposed at the upper end of the base (1); a support frame (302) is fixedly connected to the upper surface of the support platform (301); a first bearing (303) is passed through the surface of the support frame (302); a first rotating shaft (304) is passed through the first bearing (303); a knob (305) is fixedly connected to the upper end of the first rotating shaft (304); a first screw (305) is fixedly connected to the lower end of the first rotating shaft (304); The threaded column (306) is threadedly connected to a threaded tube (307) at the lower end of the first threaded column (306), and the lower end of the threaded tube (307) is fixedly connected to a movable platform (308). The upper surface of the support platform (301) is inlaid with a first positioning clamp (309), and the lower surface of the movable platform (308) is inlaid with a second positioning clamp (310). The first positioning clamp (309) and the second positioning clamp (310) match each other. The upper surface of the base (1) is fixedly connected to a fixed platform (4), and a positioning seat (5) is provided at the upper end of the fixed platform (4). A shaft (6) is provided inside the positioning seat (5), and the position of the shaft (6) corresponds to the position of the positioning mechanism (3).

2. A railway EMU bearing press-fitting assembly device according to claim 1, characterized in that: A dual-axis motor (9) is fixedly connected inside the transmission bin (2); the other end of the output shaft of the dual-axis motor (9) is fixedly connected to a second threaded column (10); the other end of the second threaded column (10) is fixedly connected to a second rotating shaft (11); a second bearing (12) is fixedly connected to the inner wall of the transmission bin (2); the other end of the second rotating shaft (11) is inserted into the second bearing (12); a second threaded cap (13) is threadedly connected to the surface of the second threaded column (10); a connecting rod (14) is fixedly connected to the side of the second threaded cap (13); a movable groove (15) is provided on the surface of the transmission bin (2); the connecting rod (14) is inserted into the movable groove (15); the upper end of the connecting rod (14) is fixedly connected to the lower surface of the support platform (301).

3. The railway EMU bearing press-fitting assembly device according to claim 1, characterized in that: A sliding sleeve (312) is provided on the surface of the movable platform (308); a sliding rod (311) is fixedly connected to the upper surface of the support platform (301); the upper end of the sliding rod (311) is fixedly connected to the lower surface of the support frame (302); the sliding sleeve (312) is slidably connected to the surface of the sliding rod (311); and there are two groups of the sliding rod (311) and the sliding sleeve (312), which are symmetrically arranged on both sides of the movable platform (308).

4. The railway EMU bearing press-fitting assembly device according to claim 1, characterized in that: The lower surface of the support platform (301) is fixedly connected with a slider (7), the upper surface of the base (1) is provided with a slide groove (8), the slider (7) is slidably connected in the slide groove (8), and the slider (7) and the slide groove (8) each have two groups, and are symmetrically arranged at the lower end of the support platform (301).

5. The railway EMU bearing press-fitting assembly device according to claim 1, characterized in that: A control switch (16) is fixedly connected to the front side of the base (1).

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