CN114486237A

CN114486237A - Train gear box no-load test bench

Info

Publication number: CN114486237A
Application number: CN202210017772.0A
Authority: CN
Inventors: 毛蜀渝
Original assignee: Chenglu Chongqing Intelligent Rail Transit Equipment Manufacturing Co ltd
Current assignee: Chenglu Chongqing Intelligent Rail Transit Equipment Manufacturing Co ltd
Priority date: 2022-01-08
Filing date: 2022-01-08
Publication date: 2022-05-13

Abstract

The invention relates to the technical field of gear box tests, and particularly discloses a no-load test bed for a train gearbox, which comprises a base, wherein a supporting assembly for supporting the gearbox is arranged on the base, two supporting seats for supporting an axle bearing are symmetrically arranged on the base, the two supporting seats are respectively arranged on two sides of the supporting assembly, one of the supporting seats is in sliding connection with the base, a first screw is rotatably connected onto the base and in threaded connection with the supporting seats, a test motor for connecting the gearbox is also in sliding connection with the base, the distance between the supporting seats can be changed by arranging the first screw, the test motor can be changed according to the relative position of the axle bearing, the position of the test motor can be changed by arranging a second screw, and the connection shafts of different gearboxes are different in length, and the test motor can be conveniently connected after being adjusted.

Description

Train gear box no-load test bench

Technical Field

The application relates to the technical field of gear box tests, and particularly discloses a train gear box no-load test bed.

Background

With the continuous development of social economy, urban population is rapidly expanded, the passenger capacity is greatly increased, the pressure of urban traffic is increased, and the conventional public traffic system cannot adapt to the actual demand of urban development. Since urban rail transit has great advantages in terms of resource conservation, environmental protection and transportation efficiency, the development of urban rail transit systems is imperative. The operation of the rail vehicle depends on the driving of the locomotive, the power source of the locomotive is a driving motor and a driving gear box which are arranged on a bogie, namely, the driving motor outputs power to the gear box through a coupler, and the gear box drives an axle to rotate, so that the rotation of wheels fixedly connected with the axle is driven, and the front and back operation of the locomotive is realized. In order to ensure the running safety of a vehicle, according to the regulation requirement, the no-load test needs to be carried out on assembled gear boxes one by one, the existing no-load test stand usually carries out the no-load test by arranging bearings at two sides of an axle supported by a supporting seat and connecting a test motor, however, for the gear boxes with different specifications and sizes, the supporting seat cannot be adjusted in height according to the height of the axle, and the installation position of the test motor also needs to be adjusted according to different gear boxes, so that the inventor provides the no-load test stand for the gear boxes of the train so as to solve the problems.

Disclosure of Invention

The invention aims to solve the problems that the height of a supporting seat of a traditional no-load test bed cannot be adjusted and the position of a test motor cannot be adjusted.

In order to achieve the purpose, the basic scheme of the invention provides a train gear box no-load test bed which comprises a base, wherein a supporting assembly used for supporting a gear box is arranged on the base, two supporting seats used for supporting an axle bearing are symmetrically arranged on the base, the two supporting seats are respectively arranged on two sides of the supporting assembly, one of the supporting seats is in sliding connection with the base, a first screw rod is rotatably connected to the base and in threaded connection with the supporting seat, a test motor used for connecting the gear box is further slidably connected to the base, a second screw rod is rotatably connected to the base and in threaded connection with the test motor, handles are rotatably connected to one ends of the first screw rod and one end of the second screw rod, and a controller used for controlling the test motor is arranged on the base.

The principle and effect of this basic scheme lie in:

1. supporting assembly supports the gear box, sets up the supporting seat in supporting assembly both sides and supports the axletree bearing, connects test motor back circular telegram, can carry out no-load test to the gear box, whether test gear box has the leakage, axletree connection unstability scheduling problem.

2. Through setting up a supporting seat fixed, a supporting seat is through first screw rod adjustment position, can adjust according to the position of different gear box axletree bearings installations, uses in the gear box of multiple different specifications size, has increased the practicality.

3. Can be through setting up gliding test motor on the base, rotate through the second screw rod and drive test motor and make linear motion along the second screw rod to change test motor's position, to the position of different gear box connecting axles, can change at will, more have the practicality.

Compared with the prior art, the gear box and the axle bearing are placed on the base through the supporting seat and the supporting assembly, after the fixing is completed, the gear box is tested by arranging the testing motor to be connected with the gear box, aiming at the gear boxes with different specifications, the distance between the supporting seats can be changed by arranging the first screw rod, the change is carried out according to the relative position of the axle bearing, the position of the testing motor can be changed by arranging the second screw rod, and the connection is convenient after the position of the testing motor is adjusted according to different connecting shafts of different gear boxes.

Furthermore, the supporting component comprises a base and a plurality of supporting pulleys arranged on the base. The supporting pulley arranged on the base can be suitable for the gear box with uneven surface.

Further, the supporting seat comprises air cylinders symmetrically arranged on the base, a supporting plate is fixedly connected to the extending end of each air cylinder, an arc-shaped support is connected to the supporting plate through bolts, and the air cylinders are electrically connected with the controller. The horizontal height of the arc-shaped support can be adjusted by arranging the air cylinder, and the adjustment can be carried out according to the size of the gear box.

Furthermore, a first empty groove is formed in the base, a first screw rod is connected to the first empty groove in a rotating mode, a first bottom plate is connected to the first screw rod in a threaded mode, the bottom plate is fixedly connected with the air cylinder, and first guide strips for preventing the bottom plate from deviating are symmetrically and fixedly connected to the bottom of the first empty groove. The first guide strip is arranged in the first empty groove, so that the first bottom plate can be prevented from deflecting along the first screw rod during the movement process of the first bottom plate and the first screw rod.

Furthermore, a second empty groove is formed in the base, a second screw rod is connected to the second empty groove in a rotating mode, a second bottom plate is connected to the second screw rod in a threaded mode and connected with the testing motor through bolts, and second guide strips are symmetrically and fixedly connected to the bottom in the second empty groove. Set up the second gib block in the second dead slot, second gib block and second bottom plate sliding connection move the in-process at the second bottom plate, contact with the second gib block all the time, avoid the second bottom plate to take place to deflect, and the second bottom plate passes through bolted connection, convenient to detach and installation with test motor.

Furthermore, the connection mode of the test motor and the gear box is belt connection. The problem of thereby the alignment that brings of traditional gear box and test motor through the mode of coupling joint is inconvenient, produces vibration, noise easily is solved.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 is a schematic diagram of a no-load test bed for a train gearbox according to an embodiment of the application;

FIG. 2 shows a side view of a no-load test stand for a train gearbox according to an embodiment of the application. .

Detailed Description

To further illustrate the technical means and effects of the present invention adopted to achieve the predetermined objects, the following detailed description of the embodiments, structures, features and effects according to the present invention will be made with reference to the accompanying drawings and preferred embodiments.

Reference numerals in the drawings of the specification include: the device comprises a base 1, a gear box 2, an axle bearing 3, a base 4, a supporting pulley 5, a first empty groove 6, a first screw rod 7, a first bottom plate 8, a cylinder 9, an arc-shaped support 10, a second bottom plate 11, a test motor 12, a belt wheel 13, a belt 14, a second screw rod 15, a guide groove 16, a guide strip 17, a control console 18 and a handle 19.

An idling test bed for a train gearbox is shown in the embodiment of figure 1: comprises a base 1, a supporting component is arranged on the base 1, the supporting component comprises a base 4 and three supporting pulleys 5 arranged on the base 4, the supporting pulleys 5 support a gear box 2 from the bottom of the gear box 2, a supporting seat is arranged on the left side of the supporting component, a supporting seat is arranged on the right side of the supporting component, a first hollow groove 6 is arranged on the base 1 at the bottom of the supporting seat on the right side, a first screw 7 is connected in the first hollow groove 6 in a rotating manner, the right end of the first screw 7 penetrates out of the base 1 and is provided with a handle 19, the first screw 7 is in threaded connection with a cover supporting seat, the supporting seats respectively comprise a bottom plate and air cylinders 9 symmetrically arranged on the bottom plate, the upper ends of the air cylinders 9 are respectively fixedly connected with a supporting plate, arc-shaped supporting seats 10 are respectively in bolted connection on the supporting plates, the arc-shaped supporting seats 10 are matched with the surface of an axle bearing 3, the first screw 7 is in threaded connection with the bottom plate of the supporting seat arranged on the first hollow groove 6, two guide ways 16 have been seted up to bottom plate bottom symmetry, 6 bottom symmetries in first dead slot are seted up the gib block 17 that agrees with guide way 16 mutually, gib block 17 is circular arc type structure with guide way 16, the second dead slot has still been seted up on the base 1, the internal rotation of second dead slot is connected with

second screw rod

15, 15 right-hand members of second screw rod set up with handle 19, threaded connection has second bottom plate 11 on the

second screw rod

15, 11 top bolted connection of second bottom plate have

test motor

12, 12 output coaxial connections of test motor have band pulley 13, be connected with band pulley 13 on the gear box 2 connecting axle, be connected with belt 14 between two band pulley 13, still be provided with control cabinet 18 on the base 1, be equipped with the controller on the control cabinet 18, controller and cylinder 9, test motor 12 electricity is connected.

In the implementation of this embodiment, the technical staff places gear box 2 on supporting component's supporting pulley 5 through mechanical equipment, place the axletree bearing 3 that is close to gear box 2 one side on the arc support 10 of supporting seat, through adjusting cylinder 9 height, change the height of arc support 10, the horizontal position is adjusted through rotating handle 19 on the first screw rod 7 to the supporting seat that keeps away from gear box 2 one side, through cylinder 9 height-adjusting, rotate handle 19 on the second screw rod 15, remove test motor 12 position, be connected with belt 14 through band pulley 13 between test motor 12 and gear box 2, after finishing connecting, energize test motor 12, carry out the no-load test.

Compared with the prior art, the gear box 2 and the axle bearing 3 are placed on the base 1 through the supporting seat and the supporting assembly, after the fixing is completed, the testing motor 12 is arranged to be connected with the gear box 2, so that the gear box 2 is tested, for the gear boxes 2 with different specifications, the distance between the supporting seats can be changed through the arrangement of the first screw 7, the change is carried out according to the relative position of the axle bearing 3, the position of the testing motor 12 can be changed through the arrangement of the second screw 15, the connection shaft for different gear boxes 2 is different in length, the connection is convenient after the position of the testing motor 12 is adjusted, the guide strip 17 and the guide groove 16 are arranged, the first bottom plate 8 and the second bottom plate 11 can be prevented from deflecting in the moving process, and the height of the arc-shaped supporting seat 10 on the supporting seat is adjusted through the arrangement of the air cylinder 9.

Although the present invention has been described with reference to the preferred embodiments, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. The utility model provides a train gear box no-load test platform which characterized in that: including the base, be provided with the supporting component who is used for supporting the gear box on the base, the symmetry is provided with two supporting seats that are used for supporting axletree bearing on the base, two the supporting seat is located the supporting component both sides respectively, and one of them supporting seat and base sliding connection rotate on the base and are connected with first screw rod, first screw rod and supporting seat threaded connection, and it has the test motor who is used for connecting the gear box still to slide connection on the base, rotates on the base and is connected with the second screw rod, second screw rod and test motor threaded connection, and first screw rod all rotates with second screw rod one end and is connected with the handle, is provided with the controller that is used for controlling test motor on the base.

2. The train gearbox no-load test stand of claim 1, wherein the support assembly comprises a base and a plurality of support pulleys disposed on the base.

3. The train gearbox no-load test bed as recited in claim 1 or 2, wherein the supporting seats each comprise a cylinder symmetrically arranged on the base, a supporting plate is fixedly connected to an extended end of the cylinder, an arc-shaped support is connected to the supporting plate through a bolt, and the cylinder is electrically connected with the controller.

4. The no-load test bed for the train gearbox as recited in claim 3, wherein the base is provided with a first hollow groove, the first hollow groove is rotatably connected with a first screw rod, the first screw rod is in threaded connection with a first bottom plate, the bottom plate is fixedly connected with the cylinder, and first guide strips for preventing the bottom plate from deviating are symmetrically and fixedly connected to the bottom of the first hollow groove.

5. The train gearbox no-load test bed according to claim 4, wherein a second empty groove is formed in the base, a second screw rod is rotatably connected in the second empty groove, a second bottom plate is connected to the second screw rod in a threaded manner and is connected with the test motor through bolts, and second guide strips are symmetrically and fixedly connected to the bottom of the second empty groove.

6. The train gearbox no-load test bed according to claim 1, wherein the test motor is connected with the gearbox by a belt.