CN110376521A - A kind of motor clamping device of automobile drive motor testboard bay - Google Patents

Abstract

The invention discloses a motor clamping device of a driving motor test stand for a vehicle, which comprises a motor mounting frame for placing a motor under test and a lifting device connected with the mounting frame; the lifting device includes an adjusting handle and a sliding lead screw , top plate, bottom plate, fixed shaft, translational shaft, pulley and shearing plate; the lifting device drives the upper and lower translational shafts to move in translation by rotating the adjustment handle, and the top plate of the lifting device moves up and down through the movement of the shearing plate; the top plate of the lifting device There is a long waist hole, which can realize the longitudinal adjustment of the motor mounting frame. In summary, the structure provided by the present invention can conveniently and quickly adjust the coaxiality of the motor shaft and the dynamometer shaft, effectively solving the difficulty in adjusting the motor clamping device in the motor test bench, and it is difficult to ensure the coaxiality of the motor shaft and the dynamometer technical problems.

Description

A motor clamping device for a vehicle drive motor test bench

technical field

The invention belongs to the field of new energy automobile motor testing, and in particular relates to a motor clamping device of a vehicle drive motor test bench.

Background technique

In recent years, with the rapid development of the automobile industry, various problems caused by the development of automobiles have become more prominent. In order to solve the problems of environmental pollution and energy shortage, the governments of various countries are actively supporting the development of the new energy automobile industry. As the key power component of pure electric vehicles and hybrid electric vehicles, vehicle drive motors directly affect the power and economy of the vehicle. Therefore, it is very necessary to do a bench test on the vehicle motor.

At present, the motor test bench is generally a drag-type bench. Since the motor used in a vehicle has a high speed, it requires high coaxiality between the motor under test and the dynamometer. In the current motor test bench, the motor under test is only installed on the horizontal iron base through the motor bracket. This installation method can only ensure that the degrees of freedom in two directions can be adjusted. 02-12, a new energy vehicle motor test bench coaxiality adjustment tool is disclosed. The mechanism adjusts the movement of the motor bracket on the horizontal iron base through the adjustment bolt, which can realize the adjustment of the degrees of freedom in two directions. This motor fixing method can only ensure the coaxiality if the height of the motor output shaft is consistent with that of the dynamometer output shaft. It requires high machining accuracy for the motor bracket and other mounting brackets, and cannot realize the adjustment of the height of the motor output shaft.

To sum up, how to improve the installation device of the motor under test so that it can efficiently and conveniently adjust the coaxiality between the output shaft of the motor and the output shaft of the dynamometer is an urgent problem to be solved by those skilled in the art.

Contents of the invention

In order to solve the above technical problems, the present invention provides a motor clamping device for a vehicle drive motor test bench. The clamping device can conveniently and quickly adjust the coaxiality between the motor shaft and the dynamometer shaft, effectively solving the problem of motor testing. It is difficult to adjust the motor clamping device in the bench, and it is difficult to ensure the coaxiality of the motor shaft and the dynamometer.

In order to achieve the above object, the present invention provides the following technical solutions:

A motor clamping device for a drive motor test bench for a vehicle, comprising a motor mounting frame for placing a motor under test and a lifting device connected to the mounting frame, wherein:

The motor mounting frame is installed on the top plate of the lifting device through hexagon head bolts; the lifting device includes an adjusting handle, a sliding screw, a top plate, a bottom plate, an upper fixed shaft, a lower fixed shaft, an upper translation shaft, a lower translation shaft, a pulley and a shear plate The upper fixed shaft and the lower fixed shaft are fixedly connected with the top plate and the bottom plate through screws; the upper translation shaft and the lower translation shaft are connected with pulleys through bearings; the shear plates are connected through movable screws.

Preferably, in the motor clamping device of the above-mentioned vehicle drive motor test bench, one end of the sliding screw is connected to the adjustment handle, the other end is connected to the upper translation shaft through a trapezoidal thread, and the middle support is fixed on the upper axis.

Preferably, in the motor clamping device of the vehicle drive motor test bench described above, the connecting part of the sliding screw and the upper fixed shaft is not threaded, and the sliding screw and the upper fixed shaft are connected through a bushing.

Preferably, in the motor clamping device of the vehicle drive motor test bench, the top plate and the bottom plate are used as moving guide rails for pulleys.

Preferably, in the motor clamping device of the above-mentioned vehicle drive motor test bench, two long-waisted holes are arranged on the top plate, and the distance between the two long-waisted holes is greater than the mounting hole of the motor mounting frame The longitudinal mounting hole distance.

Preferably, in the motor clamping device of the vehicle driving motor test bench, the connection part between the shear plate and the bearing is provided with a shoulder.

Compared with prior art, the beneficial effect of the present invention is:

(1) When the present invention adjusts the coaxiality, it only needs to rotate the adjusting handle and move the installation position of the motor mounting frame, and adopts the sliding screw mechanism, which makes the lifting more stable and has higher precision. For technicians, the adjustment is convenient and fast, saving time saving;

(2) When the motor under test is installed in the present invention, the motor under test and the motor mounting frame are connected by bolts, and the motor mounting frame and the lifting device are also connected by bolts, so the installation is easy and the connection is reliable;

(3) The present invention only needs to change the motor mounting frame when changing the motor to be tested, especially only need to change the position and the diameter of the mounting hole on the vertical baffle in the motor mounting frame, which improves the universality of the vehicle driving motor test stand sex;

(4) The machining precision of the motor mounting frame is low, and the machining is easy.

Description of drawings

Below in conjunction with accompanying drawing, the present invention will be further described:

Fig. 1 is the structural representation of the motor clamping device of a kind of vehicle drive motor test bench provided by the present invention;

Fig. 2 is a left half-sectional view of a motor clamping device of a vehicle drive motor test bench provided by the present invention;

Fig. 3 is a sectional view along line A-A in Fig. 2 of a motor clamping device of a vehicle drive motor test bench provided by the present invention;

FIG. 4 is a structural schematic diagram of a motor mounting frame of a motor clamping device of a vehicle drive motor test bench provided by the present invention.

Among them, 1 is the motor mounting frame, 1-1 is the vertical baffle, 1-2 is the reinforcement rib, 1-3 is the installation bottom plate, 2-1 is the hexagon head bolt, 2-2 is the fastening nut, 3 is the top plate , 4 is the nut, 5 is the bottom plate, 6 is the shear plate, 7 is the handle, 8 is the gasket, 9 is the screw, 10 is the lower translation shaft, 11 is the lower fixed shaft, 12 is the pulley, 13 is the bearing, 14 is Slide screw, 15 are the upper translation shaft, 16 are bearings, 17 are axle sleeves, 18 are upper fixed shafts, 19 are screws, and 20 are gaskets.

Detailed ways:

Below in conjunction with accompanying drawing, the present invention is described in more detail:

As shown in FIG. 1 , the present invention consists of a motor mounting frame 1 for placing a motor under test and a lifting device connected with the mounting frame. Among them, the motor mounting frame 1 is composed of a vertical baffle 1-1, a reinforcing rib 1-2, and an installation base 1-3. As shown in Figure 4, the installation base 1-3 is provided with 4 installation holes, and the vertical baffle There is a central via hole in the middle of 1-1 for the output shaft of the motor under test to pass through, and there are 4 motor installation holes around it. One side of the reinforcement rib 1-2 is connected with the vertical baffle 1-1, and the other side is connected with the installation bottom plate. 1-3 connected, all connected by welding.

As shown in Figure 1, Figure 2, and Figure 3, the lifting device consists of an adjusting handle 7, a sliding screw 14, a top plate 3, a bottom plate 5, an upper fixed shaft 18, a lower fixed shaft 11, an upper translation shaft 15, and a lower translation shaft 10. , Pulley 12 and shearing plate 6 are formed. Wherein, the top plate 3 is provided with two long waist holes, and the hex head bolts 2-1 pass through the long waist holes and the installation holes on the installation base plate 1-3, and are fastened by fastening nuts 2-2. The pitch of the two oblong holes on the top plate 3 is greater than the longitudinal installation pitch of the threaded holes, and the adjustment of the longitudinal degree of freedom can be realized by changing the bolt connection position of the motor mounting frame.

As shown in Fig. 2 and Fig. 3, there are threaded holes at both ends of the upper fixed shaft 18 and the lower fixed shaft 11, and are respectively fixedly connected to the top plate 3 and the bottom plate 5 by screws 9. The two ends of the upper translation shaft 15 and the lower translation shaft 10 are connected with the pulley 12 through the bearing 13, and the top plate 3 and the bottom plate 5 are used as the moving guide rails of the pulley 12. On the upper fixed shaft 18, the lower fixed shaft 11, the upper translation shaft 15 and the lower translation shaft 10, there is a section connected to the bearing 16, the outer ring of the bearing 16 is connected to the shear plate 6, and the installation position of the space orientation is matched, and the same side An X shape is formed between the two shear plates, which are connected by movable screws.

As shown in FIG. 3 , one end of the sliding screw 14 is connected to the adjustment handle 7 , the other end is connected to the upper translation shaft 15 through a trapezoidal thread, and the middle is supported in the upper fixed shaft 18 . The connecting part of the sliding screw 14 and the upper fixed shaft 18 is not threaded, and is connected with the upper fixed shaft 18 through the axle sleeve 17 .

The working principle of the present invention is as follows:

The motor under test is fixed on the vertical baffle 1-1 of the motor mounting frame through bolt connection, the output shaft of the motor passes through the central hole of the vertical baffle 1-1, the motor mounting frame is installed on the lifting device, and the fastening nut 2- 2 Do not lock it temporarily. By turning the adjusting handle 7, the sliding screw 14 is idling in the upper fixed shaft 18. Through the trapezoidal thread transmission, the upper translation shaft 15 moves horizontally, driving the pulley 12 to move in the track formed by the bending of the top plate. The pulley 12 on the translation shaft 10 is driven by the shearing movement to move in the track formed by the bending of the bottom plate 5, and the top plate 3 rises and falls through the coordinated movement of the shearing plates on both sides. When carrying out the motor bench test, the degree of freedom in two directions can be adjusted by rotating the adjustment handle and moving the position of the motor mounting frame, and the degree of freedom in the other direction can be adjusted by changing the transverse position of the dynamometer on the T-slot ground iron. After position adjustment and coaxiality adjustment, tighten the fastening nut 2-2.

Claims (6)

1. a kind of motor clamping device of automobile drive motor testboard bay, which is characterized in that including for placing tested motor Motor mounting rack (1) and the lifting device that is connect with the mounting rack, in which:

Motor mounting rack (1) is mounted on the top plate (3) of lifting device by hexagon-headed bolt (2)；Lifting device includes adjusting Handle (7), lead screw (14), top plate (3), bottom plate (5), upper fixing axle (18), lower fixing axle (11), upper translation shaft (15), Lower translation shaft (10), pulley (12) and shear (6)；The upper fixing axle (18), lower fixing axle (11) by screw (20) with Top plate (3) is fixedly connected with bottom plate (5)；The upper translation shaft (15), lower translation shaft (10) pass through bearing (13) and pulley (12) it connects；It is connected between the shear (6) by activity clencher (4).

2. a kind of motor clamping device of automobile drive motor testboard bay described in accordance with the claim 1, which is characterized in that institute Lead screw (14) one end stated is connect with regulation handle (7), and the other end is connect by trapezoidal thread with upper translation shaft (15), in Between be supported in fixing axle (18).

3. a kind of motor clamping device of automobile drive motor testboard bay described in accordance with the claim 1, which is characterized in that institute The coupling part of the lead screw (14) stated and upper fixing axle (18) does not process screw thread, lead screw (14) and upper fixing axle (18) It is connected by axle sleeve (17).

4. a kind of motor clamping device of automobile drive motor testboard bay described in accordance with the claim 1, which is characterized in that institute The top plate (3) and the moving guide rail of bottom plate (5) as pulley (12) stated.

5. a kind of motor clamping device of automobile drive motor testboard bay described in accordance with the claim 1, which is characterized in that institute There are two long waist-shaped hole, two long waist-shaped hole pitch-row is greater than the vertical of the mounting hole of motor mounting rack (1) for setting on the top plate (3) stated To mounting hole spacing.

6. shining a kind of motor clamping device of automobile drive motor testboard bay described in claim 1, which is characterized in that described Shear (6) and bearing (16) coupling part be provided with hole shoulder.