Movable and detachable type telex locomotive axle suspension bush boring device
By designing a mobile detachable boring device on a telex locomotive, adjusting the bearing bushing position using a conical positioning core plate and boring bar, and performing boring tool operation with the controller of the boring host, the coaxiality problem of bearing bushing is solved. Efficient boring and assembly quality is achieved.
Patent Information
- Application Number
- CN202421066705.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-15
- Publication Date
- 2024-12-24
- Estimated Expiration
- 2034-05-15
AI Technical Summary
When repairing the electric-speed locomotive bearing shell, the coaxiality and position of the two bearing shells cannot be guaranteed, resulting in the inability to interchangeably assemble after boring, affecting the locomotive maintenance progress.
A mobile detachable telex locomotive axle-bearing shell boring device is designed, and the boring bar is adjusted to the center position of the bearing shell through the first conical positioning core disc and the second conical positioning core disc, and the control of the boring main machine is used. The device controls the rotation speed and feed rate of the boring tool, realizing the simultaneous machining of two bearing shells.
It ensures the dimensional accuracy of the inner diameter of the bearing shell and the coaxiality of the left and right bearing shells, and improves working efficiency and assembly quality.
Smart Images
Figure CN222221202U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of traction motor bearing bushing maintenance, in particular to a mobile and detachable electric locomotive bearing bushing boring device. Background Art
[0002] The bearing bushings of telex locomotives are worn out during use, and new bushings are replaced during the overhaul process. Since the new bushings are semi-finished products that need secondary processing for assembly, the locomotive bearing bushings are pre-installed on the traction motor to measure the turning size, and then disassembled and installed on a common boring machine for boring. The two bearing bushings on a wheelset can only be bored separately, and then installed on the traction motor to measure the inner diameter. This boring and assembly method cannot guarantee the coaxiality and position of the two bearing bushings, and can only be pre-installed and turned multiple times, which may cause the bearing bushing to be scrapped after turning, and the bearing bushing cannot be interchanged with other wheelsets after boring, which seriously affects the progress of locomotive maintenance. Utility Model Content
[0003] The utility model aims to provide a mobile and detachable electric locomotive bearing bush boring device to solve the problems existing in the above-mentioned prior art, with simple structure, convenient use and effective guarantee of the coaxiality of the bearing bush boring at both ends.
[0004] To achieve the above purpose, the utility model provides the following solutions:
[0005] The utility model provides a mobile and detachable electric locomotive bearing bush boring device, comprising: a traction motor, a boring main machine, a boring rod, a first bearing bush, a second bearing bush, a first conical positioning core disk and a second conical positioning core disk, the boring main machine is fixedly connected to the traction motor, and the boring rod is connected to the boring main machine through a feed screw; the first bearing bush is detachably fixedly connected to one side of the traction motor; the second bearing bush is detachably fixedly connected to a side of the traction motor away from the first bearing bush; a first through hole is provided at the axis center line of the first conical positioning core disk, and the first conical positioning core disk is used to tighten the first inner hole of the first bearing bush; a second through hole is provided at the axis center line of the second conical positioning core disk, and the second conical positioning core disk is used to tighten the second inner hole of the second bearing bush; the boring rod is used to pass through the first through hole and the second through hole so that the boring rod is located on the central axis of the first inner hole and the second inner hole.
[0006] Preferably, the diameter of the end with a smaller cross-sectional area of the first conical positioning core disk is smaller than the diameter of the first inner hole, the diameter of the end with a larger cross-sectional area of the first conical positioning core disk is larger than the diameter of the first inner hole, the diameter of the end with a smaller cross-sectional area of the second conical positioning core disk is smaller than the diameter of the second inner hole, and the diameter of the end with a larger cross-sectional area of the second conical positioning core disk is larger than the diameter of the second inner hole.
[0007] Preferably, it also includes a first locking nut and a second locking nut, the first locking nut being threadedly connected to the boring bar to tighten the first conical positioning core disk against the end of the first inner hole, and the second locking nut being threadedly connected to the boring bar to tighten the second conical positioning core disk against the end of the second inner hole.
[0008] Preferably, it also includes a first mounting bracket and a second mounting bracket, wherein the first mounting bracket and the second mounting bracket are respectively detachably fixedly connected to the two sides of the traction motor, a first bearing is arranged in the middle of the first mounting bracket, and a second bearing is arranged in the middle of the second mounting bracket, and the boring rod is used to pass through the first bearing and the second bearing.
[0009] Preferably, the first mounting bracket includes a first bearing bracket and a plurality of first fine-tuning screws, each of the first fine-tuning screws is threadedly connected to the first bearing bracket in the circumferential direction of the first bearing bracket, and one end of the first fine-tuning screw extending between the first bearings is connected to the first bearing.
[0010] Preferably, the second mounting bracket includes a second bearing bracket and a plurality of second fine-tuning screws, each of the second fine-tuning screws is threadedly connected to the second bearing bracket in the circumferential direction of the second bearing bracket, and one end of the second fine-tuning screw extending between the second bearings is connected to the second bearing.
[0011] Preferably, the traction motor is provided with a plurality of first positioning holes and a plurality of positioning holes, the first mounting bracket is connected to the first positioning hole by bolts, and the second mounting bracket is connected to the second positioning hole by bolts.
[0012] Compared with the prior art, the utility model has achieved the following technical effects:
[0013] The utility model provides a mobile and detachable electric locomotive bearing bush boring device, which adjusts the boring bar to the center position of the first bearing bush and the second bearing bush through the first conical positioning core disk and the second conical positioning core disk, and controls the controller on the boring host to control the rotation speed and feed rate of the boring cutter to complete the inner diameter processing of the first bearing bush and the second bearing bush. In this way, two bearing bushes on the same axis can be processed simultaneously by one boring bar, which ensures the dimensional accuracy of the inner diameter of the bearing bush and the coaxiality of the left and right bearing bushes, improves the work efficiency and ensures the assembly quality. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0015] Figure 1 The utility model provides a structural schematic diagram of a mobile and detachable telex locomotive bearing bush boring device;
[0016] In the figure: 1, boring main machine; 2, feed screw; 3, first locking nut; 4, first mounting bracket; 5, first bearing shell; 6, first conical positioning core disk; 7, second fine-tuning screw; 8, boring rod; 9, second bearing bracket; 10, second mounting bracket; 11, second positioning hole; 12, traction motor; 13, second bearing shell; 14, second conical positioning core disk. DETAILED DESCRIPTION
[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0018] The utility model aims to provide a mobile and detachable electric locomotive bearing bush boring device to solve the problems existing in the above-mentioned prior art, with simple structure, convenient use and effective guarantee of the coaxiality of the bearing bush boring at both ends.
[0019] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.
[0020] The utility model provides a mobile and detachable telex locomotive bearing bush boring device, such as Figure 1 As shown, it includes: a traction motor 12, a boring main machine 1, a boring rod 8, a first bearing bush 5, a second bearing bush 13, a first conical positioning core disk 6 and a second conical positioning core disk 14. The boring main machine 1 is fixedly connected to the traction motor 12, and the boring rod 8 is connected to the boring main machine 1 through a feed screw 2; the first bearing bush 5 is detachably fixedly connected to one side of the traction motor 12; the second bearing bush 13 is detachably fixedly connected to the side of the traction motor 12 away from the first bearing bush 5; a first through hole is provided at the axis center line of the first conical positioning core disk 6, and the first conical positioning core disk 6 is used to tighten the first bearing bush The first inner hole of the bearing 5; the second through hole is arranged at the axis of the second conical positioning core disk 14, and the second conical positioning core disk 14 is used to tighten the second inner hole of the second bearing 13; the boring bar 8 is used to pass through the first through hole and the second through hole so that the boring bar 8 is located on the central axis of the first inner hole and the second inner hole, and the boring bar 8 is adjusted to the center position of the first bearing 5 and the second bearing 13 through the first conical positioning core disk 6 and the second conical positioning core disk 14, and the controller on the boring host 1 is controlled to control the rotation speed and feed rate of the boring cutter to complete the inner diameter processing of the first bearing 5 and the second bearing 13. In this way, two coaxial bearings are processed simultaneously by one boring bar 8, which ensures the dimensional accuracy of the inner diameter of the bearing and the coaxiality of the left and right bearings, improves the work efficiency and ensures the assembly quality.
[0021] In a preferred embodiment, the diameter of the end with a smaller cross-sectional area of the first conical positioning core disk 6 is smaller than the diameter of the first inner hole, the diameter of the end with a larger cross-sectional area of the first conical positioning core disk 6 is larger than the diameter of the first inner hole, the diameter of the end with a smaller cross-sectional area of the second conical positioning core disk 14 is smaller than the diameter of the second inner hole, and the diameter of the end with a larger cross-sectional area of the second conical positioning core disk 14 is larger than the diameter of the second inner hole. The structure is simple and easy to use. The first conical positioning core disk 6 is tightly pressed against the end of the first inner hole, and the second conical positioning core disk 14 is tightly pressed against the end of the second inner hole, so that the boring rod 8 can be adjusted to the center position of the first bearing shell 5 and the second bearing shell 13.
[0022] In a preferred embodiment, the mobile and detachable electric locomotive bearing boring device also includes a first locking nut 3 and a second locking nut. The first locking nut 3 is threadedly connected to the boring rod 8 to tighten the first conical positioning core disk 6 to the end of the first inner hole, and the second locking nut is threadedly connected to the boring rod 8 to tighten the second conical positioning core disk 14 to the end of the second inner hole. The structure is simple and easy to use. The first conical positioning core disk 6 and the second conical positioning core disk 14 can be positioned by rotating the first locking nut 3 and the second locking nut.
[0023] In a preferred embodiment, the mobile and detachable electric locomotive bearing bush boring device also includes a first mounting bracket 4 and a second mounting bracket 10, which are respectively detachably fixedly connected to the two sides of the traction motor 12, a first bearing is arranged in the middle of the first mounting bracket 4, and a second bearing is arranged in the middle of the second mounting bracket 10, and the boring rod 8 is used to pass through the first bearing and the second bearing, the first mounting bracket 4 includes a first bearing bracket and a plurality of first fine-tuning screws, each of which is threadedly connected to the first bearing bracket in the circumferential direction of the first bearing bracket, and one end of the first fine-tuning screw extending between the first bearings is connected to the first bearing, and the second The mounting bracket 10 includes a second bearing bracket 9 and a plurality of second fine-tuning screws 7, each of which is threadedly connected to the second bearing bracket 9 in the circumferential direction of the second bearing bracket 9, and one end of the second fine-tuning screw 7 extending between the second bearings is connected to the second bearing. By accurately measuring the distance between the inner diameters of the first bearing 5 and the second bearing 13 and the boring bar 8 in the upper and lower directions and the left and right directions, the first fine-tuning screw on the first bearing bracket is adjusted to adjust the coincidence accuracy between the center position of the boring bar 8 and the center position of the first bearing 5, and the second fine-tuning screw 7 on the second bearing bracket 9 is adjusted to adjust the coincidence accuracy between the center position of the boring bar 8 and the center position of the second bearing 13. This is the second positioning of the boring bar 8. After the two positionings, the inner diameter of the bearing is processed according to the matching size requirements of the bearing, and the controller on the boring machine 1 is controlled to control the rotation speed and feed rate of the boring cutter to complete the inner diameter processing of the bearing. In this way, two coaxial bearing shells can be processed simultaneously by one boring bar 8, which ensures the dimensional accuracy of the inner diameter of the bearing shell and the coaxiality of the left and right bearing shells, improves work efficiency and ensures assembly quality.
[0024] In a preferred embodiment, a plurality of first positioning holes and a plurality of positioning holes are provided on the traction motor 12, the first mounting bracket 4 is connected to the first positioning hole by bolts, and the second mounting bracket 10 is connected to the second positioning hole 11 by bolts, with a simple structure and convenient connection.
[0025] The present invention uses specific examples to illustrate the principle and implementation of the present invention. The above examples are only used to help understand the method and core idea of the present invention. At the same time, for those skilled in the art, according to the idea of the present invention, there will be changes in the specific implementation and application scope. In summary, the content of this specification should not be understood as limiting the present invention.
Claims
1. A mobile and detachable telex locomotive bearing bush boring device, characterized in that: include: Traction motor, A boring machine, wherein the boring machine is fixedly connected to the traction motor, A boring bar connected to the boring machine via a feed screw; A first bearing bushing, wherein the first bearing bushing is detachably fixedly connected to one side of the traction motor; a second bearing bushing, the second bearing bushing being detachably fixedly connected to a side of the traction motor away from the first bearing bushing; A first conical positioning core disk, wherein a first through hole is provided at the axis of the first conical positioning core disk, and the first conical positioning core disk is used to tighten the first inner hole of the first bearing bush; A second conical positioning core disk, wherein a second through hole is provided at the axis of the second conical positioning core disk, and the second conical positioning core disk is used to tighten the second inner hole of the second bearing bush; The boring bar is used to pass through the first through hole and the second through hole so that the boring bar is located on the central axis of the first inner hole and the second inner hole.
2. The mobile and detachable telex locomotive bearing bush boring device according to claim 1 is characterized in that: The diameter of the end with a smaller cross-sectional area of the first conical positioning core disk is smaller than the diameter of the first inner hole, the diameter of the end with a larger cross-sectional area of the first conical positioning core disk is larger than the diameter of the first inner hole, the diameter of the end with a smaller cross-sectional area of the second conical positioning core disk is smaller than the diameter of the second inner hole, and the diameter of the end with a larger cross-sectional area of the second conical positioning core disk is larger than the diameter of the second inner hole.
3. The movable and detachable telex locomotive bearing bush boring device according to claim 2 is characterized in that: It also includes a first locking nut and a second locking nut, the first locking nut is threadedly connected to the boring bar to tighten the first conical positioning core disk to the end of the first inner hole, and the second locking nut is threadedly connected to the boring bar to tighten the second conical positioning core disk to the end of the second inner hole.
4. The mobile and detachable telex locomotive bearing bush boring device according to claim 1 is characterized in that: It also includes a first mounting bracket and a second mounting bracket, the first mounting bracket and the second mounting bracket are respectively detachably fixedly connected to the two sides of the traction motor, a first bearing is arranged in the middle of the first mounting bracket, and a second bearing is arranged in the middle of the second mounting bracket, and the boring rod is used to pass through the first bearing and the second bearing.
5. The movable and detachable telex locomotive bearing bush boring device according to claim 4 is characterized in that: The first mounting bracket includes a first bearing bracket and a plurality of first fine-tuning screws, each of the first fine-tuning screws is threadedly connected to the first bearing bracket in the circumferential direction of the first bearing bracket, and one end of the first fine-tuning screw extending between the first bearings is connected to the first bearing.
6. The movable and detachable telex locomotive bearing bush boring device according to claim 5 is characterized in that: The second mounting bracket includes a second bearing bracket and a plurality of second fine-tuning screws, each of the second fine-tuning screws is threadedly connected to the second bearing bracket in the circumferential direction of the second bearing bracket, and one end of the second fine-tuning screw extending between the second bearings is connected to the second bearing.
7. The movable and detachable telex locomotive bearing bush boring device according to claim 6 is characterized in that: The traction motor is provided with a plurality of first positioning holes and a plurality of positioning holes, the first mounting bracket is connected to the first positioning hole by bolts, and the second mounting bracket is connected to the second positioning hole by bolts.