CN218916174U - Axle gear box bearing clearance measuring table for rail transit vehicle - Google Patents
Axle gear box bearing clearance measuring table for rail transit vehicle Download PDFInfo
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- CN218916174U CN218916174U CN202223120280.9U CN202223120280U CN218916174U CN 218916174 U CN218916174 U CN 218916174U CN 202223120280 U CN202223120280 U CN 202223120280U CN 218916174 U CN218916174 U CN 218916174U
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- gear box
- assembly
- pressing
- measuring table
- axle
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Abstract
The utility model discloses a measuring table for the bearing clearance of an axle gear box of a rail transit vehicle, which belongs to the technical field of overhauling equipment of rail transit vehicles and comprises a measuring table for supporting and assisting in measuring an axle gear box assembly, wherein a mounting assembly for fixing a gear box of the axle gear box assembly is arranged above a working table of the measuring table; the utility model adopts a manual hydraulic pump to drive a hydraulic cylinder to provide axial force required by bearing clearance measurement. Thereby achieving the purpose of accurate quantitative output of axial force.
Description
Technical Field
The utility model relates to the technical field of rail transit vehicle maintenance equipment, in particular to a rail transit vehicle axle gear box bearing clearance measuring table.
Background
The bearing in the axle gear box in the rail traffic vehicle is a key rotating component in the whole gear box, and the measurement and adjustment of the axial clearance of the bearing when the gear box is closed again after maintenance play a key role in the performance of the gear box.
The axle gearbox assembly 1 is formed by an axle 1.1 and a gearbox 1.2.
In the measurement phase before the bearing play of the gearbox is adjusted, an axial force needs to be applied to the axle. The magnitude of this force is determined by the process parameters. After the axial force is applied, dial indicators are sequentially placed at different positions on the gear box at 3 positions, and the adjustment amounts of the dial indicators are measured and recorded respectively so as to facilitate the subsequent adjustment of the gap.
In the prior art, a crane is used to hoist the axle gear box assembly 1 in a manner of matching with a lifting appliance to apply the required axial acting force to the axle 1.1. The force is controlled by an electronic hanging scale arranged on the crown block. Thereby bringing the following two technical problems:
problem one: in the prior art, when the bearing clearance of the axle gear box assembly is measured and adjusted, the crown block always needs to lift the axle gear box assembly until the adjustment work is finished. The safety hidden trouble caused by long-time occupation of the crown block and long-time suspension of the heavy objects is caused.
And a second problem: the axial force applied to the axle is controlled quantitatively. The measurement control mode of the electronic hanging scale adopted in the prior art has to be improved in data sampling and control precision. In particular the output of axial forces, lacks a more manageable means.
Therefore, a new scheme is needed, so that the technical equipment for reducing the overhead travelling crane occupation time, reducing the lifting potential safety hazard and improving the force measuring precision is realized;
therefore, we invent a rail vehicle axle gear box bearing clearance measuring table.
Disclosure of Invention
The present utility model has been made in view of the above and/or problems existing in a rail vehicle axle gearbox bearing play measuring station.
Therefore, the utility model aims to provide a rail vehicle axle gear box bearing clearance measuring table which can solve the problems of the existing crown block, namely the problem of potential safety hazards caused by long-time occupation and long-time suspension of heavy objects.
In order to solve the technical problems, according to one aspect of the present utility model, the following technical solutions are provided:
a rail transit vehicle axle box bearing lash measurement station, comprising: the measuring table is used for supporting and assisting in measuring the axle gear box assembly, and a mounting assembly used for fixing the gear box of the axle gear box assembly is arranged above the working table surface of the measuring table;
and a supporting component for supporting the axle gear box assembly and applying upward axial force is arranged at the bottom end of the inner wall of the measuring table.
As a preferred embodiment of the axle gear box bearing play measuring table for a rail vehicle according to the present utility model, wherein: the mounting assembly includes:
the pressing beam assembly is provided with two groups, the pressing beam assembly is respectively and fixedly arranged on two sides of the top end of the workbench surface, each group of pressing beam assembly is provided with two pressing support rods, and the two pressing support rods of the pressing beam assembly of the first group are oppositely arranged.
As a preferred embodiment of the axle gear box bearing play measuring table for a rail vehicle according to the present utility model, wherein: the outer wall fixedly connected with of two relative spinal branch vaulting poles that compress tightly compresses tightly the crossbeam, threaded connection has compression screw on the crossbeam that compresses tightly.
As a preferred embodiment of the axle gear box bearing play measuring table for a rail vehicle according to the present utility model, wherein: the top end of the workbench surface is fixedly provided with a gear box supporting tool and a gear box side positioning tool which are used for positioning a gear box of the axle gear box assembly.
As a preferred embodiment of the axle gear box bearing play measuring table for a rail vehicle according to the present utility model, wherein: the support assembly includes: the hydraulic cylinder is fixedly arranged at the bottom end of the inner wall of the measuring table, the output end of the hydraulic cylinder is connected with a rotary supporting disc, and a weighing sensor is arranged at the joint of the bottom end of the rotary supporting disc and the output end of the hydraulic cylinder.
As a preferred embodiment of the axle gear box bearing play measuring table for a rail vehicle according to the present utility model, wherein: the hydraulic cylinder is connected with a hydraulic pump for controlling the hydraulic cylinder to stretch out and draw back, one side of the measuring table is fixedly connected with an electric control box electrically connected with the weighing sensor, and a digital display is arranged on the electric control box.
Compared with the prior art:
the hydraulic cylinder arranged at the bottom of the working bench is used for outputting axial jacking force to the axle under the drive of the manual hydraulic pump, so that the axial force is obtained by adopting a crane to hoist the axle gear box assembly for a long time in the prior art, and the crane is not required to be always in a hoisting state in the whole operation process, thereby reducing the occupied time of the crane and the potential safety hazard of hoisting;
the axial force required for bearing play measurement is provided by means of a manual hydraulic pump driving the hydraulic cylinder. Thereby achieving the purpose of accurate quantitative output of axial force;
a weighing sensor is arranged between the hydraulic cylinder and the rotary supporting disc and is used for measuring the real-time jacking force applied by the hydraulic cylinder to the axle. So that a timely and accurate measurement of the applied axial thrust can be made.
Drawings
FIG. 1 is a front view of the present utility model;
FIG. 2 is a side view of the present utility model;
fig. 3 is a flow chart of the present utility model.
In the figure: axle gear box assembly 1, axletree 1.1, gear box 1.2, compress tightly crossbeam assembly 2, compress tightly crossbeam 2.1, compress tightly screw 2.2, gear box support frock 3, gear box side location frock 4, table surface 5, gyration supporting disk 6, weighing sensor 7, pneumatic cylinder 8, manual hydraulic pump 9, electrical control box 10, digital display 10.1.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present utility model more apparent, embodiments of the present utility model will be described in further detail below with reference to the accompanying drawings.
The utility model provides a rail transit vehicle axle gear box bearing clearance measuring table, which has the advantages of reducing potential safety hazards and improving detection efficiency, referring to fig. 1-2, after an axle gear box assembly 1 is integrally hoisted by using a crown block, a novel working bench 5 is used in a penetrating way, and the bottom of an axle 1.1 is contacted with a rotary supporting disc 6; the gearbox support tooling 3 and the gearbox side positioning tooling 4 fixed on the workbench 5 are used for positioning the gearbox 1.2.
The pressing beam assembly 2 is used for pressing the gear box 1.2, at the moment, the axle gear box assembly 1 is positioned and clamped, at the moment, the manual hydraulic pump 9 is operated to output pressure to the hydraulic cylinder 8, and the hydraulic cylinder 8 drives the rotary support disc 6 to apply axial jacking force from bottom to top to the bottom end face of the axle 1.1.
Aiming at the problem of insufficient precision caused by the fact that an electronic hanging scale attached to a crown block is adopted to measure and control the axial force in the prior art, the utility model adopts the weighing sensor 7 to directly measure the axial jacking force generated by the hydraulic cylinder 8. The specific scheme is as follows:
a weighing sensor 7 is arranged between the hydraulic cylinder 8 and the rotary supporting disc 6 and is used for measuring the real-time jacking force applied by the hydraulic cylinder 8 to the axle 1.1, in the actual operation process, the jacking force can rise along with the pressing operation of the manual hydraulic pump 9, when a digital display 10.1 positioned on the electric control box 10 shows that the current jacking force value reaches the set technological parameter, the pressing of the manual hydraulic pump 9 is stopped, and the pressure maintaining function of the manual pump is enabled, so that the jacking force is maintained. The subsequent measurement and adjustment work is carried out under the pushing force.
In particular use, one skilled in the art will:
the axle gear box assembly 1 is suspended into the novel workbench frame 5 by using the crown block, so that the bottom of the axle 1.1 is contacted with the rotary supporting disc 6.
After confirming that the bottom of the gear box 1.2 is in full contact with the gear box supporting tool 3 and that the side surface of the gear box 1.2 is in full contact with the gear box side positioning tool 4, the crown block is removed.
The pressing beam 2.1 is combined on the pressing beam assembly 2, and then the pressing screw 2.2 is used for pressing the upper end face of the gear box 1.2, so that the axle gear box assembly 1 finishes positioning and clamping.
The manual hydraulic pump 9 is pressed, the hydraulic cylinder 8 is driven, the rotary support disc 6 is driven to apply axial pushing force from bottom to top to the end face of the bottom of the axle 1.1, and after the numerical value displayed by the digital display 10.1 reaches the set technological parameter, the play measurement and adjustment work is started.
After the play adjustment is completed, the manual hydraulic pump 9 is unloaded, and the numerical value of the digital display 10.1 is confirmed to be zero.
The compression screw 2.2 is loosened, and the compression beam 2.1 is removed from the compression beam assembly 2.
The crown block is used to steer the axle gearbox assembly 1.
Although the utility model has been described hereinabove with reference to embodiments, various modifications thereof may be made and equivalents may be substituted for elements thereof without departing from the scope of the utility model. In particular, the features of the disclosed embodiments may be combined with each other in any manner as long as there is no structural conflict, and the exhaustive description of these combinations is not given in this specification merely for the sake of omitting the descriptions and saving resources. Therefore, it is intended that the utility model not be limited to the particular embodiment disclosed, but that the utility model will include all embodiments falling within the scope of the appended claims.
Claims (6)
1. The utility model provides a rail vehicle axletree tooth case bearing play measurement table, is including being used for supporting and auxiliary measurement's measurement platform to the measurement of axletree gear box assembly (1), its characterized in that: a mounting assembly for fixing a gear box (1.2) of the axle gear box assembly (1) is arranged above a working table surface (5) of the measuring table;
and a supporting component for supporting the axle gear box assembly (1) and applying upward axial force is arranged at the bottom end of the inner wall of the measuring table.
2. The rail vehicle axle housing bearing lash measurement station of claim 1, wherein the mounting assembly comprises:
the device comprises a pressing beam assembly (2), wherein the pressing beam assembly (2) is provided with two groups, the two groups are respectively and fixedly arranged on two sides of the top end of a working table top (5), each group of pressing beam assembly (2) is provided with two pressing support rods, and the two pressing support rods of the pressing beam assembly (2) are oppositely arranged with the two pressing support rods of the pressing beam assembly (2) in a first group.
3. The rail vehicle axle gear box bearing play measuring table according to claim 2, wherein the outer walls of two pressing support rods which are oppositely arranged are fixedly connected with a pressing cross beam (2.1), and the pressing cross beam (2.1) is connected with a pressing screw (2.2) in a threaded manner.
4. A rail vehicle axle gearbox bearing play measuring table according to claim 3, characterized in that the top end of the table top (5) is fixedly provided with a gearbox support tool (3) and a gearbox side positioning tool (4) for positioning the gearbox (1.2) of the axle gearbox assembly (1).
5. A rail vehicle axle gearbox bearing play measurement stand according to claim 1 or 4, wherein said support assembly comprises: the hydraulic cylinder (8), pneumatic cylinder (8) fixed mounting is in the inner wall bottom of measuring table, and the output of pneumatic cylinder (8) is connected with gyration supporting disk (6), and weighing sensor (7) are installed in the junction of the bottom of gyration supporting disk (6) and the output of pneumatic cylinder (8).
6. The measuring table for the bearing play of the axle gear box of the rail vehicle according to claim 5, wherein the hydraulic cylinder (8) is connected with a hydraulic pump (9) for controlling the hydraulic pump to stretch and retract, one side of the measuring table is fixedly connected with an electric control box (10) electrically connected with the weighing sensor (7), and a digital display (10.1) is arranged on the electric control box (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223120280.9U CN218916174U (en) | 2022-11-23 | 2022-11-23 | Axle gear box bearing clearance measuring table for rail transit vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223120280.9U CN218916174U (en) | 2022-11-23 | 2022-11-23 | Axle gear box bearing clearance measuring table for rail transit vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218916174U true CN218916174U (en) | 2023-04-25 |
Family
ID=86043584
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223120280.9U Active CN218916174U (en) | 2022-11-23 | 2022-11-23 | Axle gear box bearing clearance measuring table for rail transit vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218916174U (en) |
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2022
- 2022-11-23 CN CN202223120280.9U patent/CN218916174U/en active Active
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