Test board for gearbox efficiency test

Abstract

The utility model discloses a testboard for gearbox efficiency testing, and particularly relates to the technical field of new energy automobile gearbox testing, which comprises a basic assembly, a testing assembly for testing a new energy automobile gearbox is fixedly mounted at the rear end of the top surface of the basic assembly, and a butt joint assembly is fixedly mounted on the front surface of the basic assembly. The basic assembly comprises a machine table, a back plate is fixedly installed at the edge of the rear end of the top face of the machine table, and a sliding groove is formed in the edge of the front end of the top face of the machine table. The bottom mounting base of the gearbox can be just located between the two centering baffles, the gearbox centering effect can be achieved while the gearbox is adaptively mounted, subsequent alignment and butt joint with a test assembly are facilitated, the mounting efficiency of the gearbox is effectively improved, the test efficiency is improved, and practicability is higher.

Description

Technical Field

[0001] The utility model relates to the technical field of new energy vehicle transmission testing, and particularly relates to a test bench for testing the efficiency of a transmission. Background Technique

[0002] With the rapid development of the new energy electric vehicle industry, how to quickly and accurately test and assess newly developed vehicle drive motor system products has increasingly attracted the attention of research institutions and production enterprises. Completing various performance assessments of the drive motor system on a test bench has become an indispensable means. In the process of powertrain design, the motor and the transmission must undergo multiple rounds of development testings. The efficiency of the transmission is an important factor affecting the performance of the powertrain. Efficiency testing is an essential part of the transmission design process. A transmission is an automotive component used to change the speed and torque from the engine and can fixedly or shiftably change the transmission ratio between the output shaft and the input shaft. It is usually composed of a speed-changing transmission mechanism and a control mechanism and can be divided into stepped, continuously variable, and compound transmissions, with functions such as realizing reverse driving, interrupting power transmission, and changing the transmission ratio.

[0003] The existing Chinese patent with the patent application number 202323152476.0, a transmission factory test bench, includes a test bench body. The test bench body includes a fixed seat. A support seat is welded to the bottom of the fixed seat. A movable seat is movably installed on the fixed seat. A mounting seat is welded to the movable seat. A fixing groove is formed on the side of the movable seat. A fixing rod is movably installed inside the fixing groove. One end of the fixing rod is welded to a support rod. A motor box is fixedly installed on the fixed seat. A heat dissipation component is fixedly installed on the top of the motor box. When this transmission factory test bench is in use, the transmission is clamped and fixed by the support rod, and the transmission is limited and fixed from the side. In addition, the support rods are distributed on the side of the transmission to protect the side of the transmission and prevent the danger caused by the transmission falling off the movable seat. However, this test bench still has deficiencies in actual use. For example, when placing and installing the transmission, the alignment steps are relatively cumbersome, the installation difficulty is relatively high, and it is rather inconvenient. Content of the Utility Model

[0004] The purpose of the utility model is to provide a test bench for testing the efficiency of a transmission to solve the problems raised in the above background technique.

[0005] To achieve the above object, the present utility model provides the following technical solutions: A test bench for testing the efficiency of a transmission, including a basic component. At the rear end of the top surface of the basic component, a test component for testing the transmission of a new energy vehicle is fixedly installed. At the front of the basic component, a docking component is fixedly installed. The basic component includes a machine table. At the rear end edge of the top surface of the machine table, a back plate is fixedly installed. At the front end edge of the top surface of the machine table, a chute is provided.

[0006] The docking component includes a U-shaped plate. In the middle of the bottom surface of the U-shaped plate, a second motor is fixedly installed. In the middle of the bottom surface of the U-shaped groove of the U-shaped plate, a threaded vertical rod is rotatably installed. Between the inner walls on both sides of the U-shaped groove, a threaded lifting plate is slidably installed. The threaded lifting plate is threadedly sleeved on the threaded vertical rod. On both sides of the middle of the top surface of the threaded lifting plate, transmission inclined rods are rotatably installed. On the top surface of the U-shaped plate, a through groove is provided. At both ends of the through groove, sliding blocks are slidably installed. The two transmission inclined rods correspond to the two sliding blocks one by one. The top end of the transmission inclined rod is rotatably connected to the bottom surface of the sliding block. At the top of the back of the two sliding blocks, second linear motors are fixedly installed. On the top surface of the sliders of the two second linear motors, a cylinder is fixedly installed. At the top end of the piston rod of the two cylinders, a positioning pin is fixedly installed. On the outer side surfaces of the two second linear motors, centering baffles are fixedly installed.

[0007] Preferably, the test component includes a first linear motor. On the front of the slider of the first linear motor, a first motor is fixedly installed.

[0008] Preferably, at one end of the output shaft of the first motor, a disc is fixedly installed. On the front of the disc, a plurality of docking pins are fixedly installed. The plurality of docking pins are annularly distributed on the front of the disc.

[0009] Preferably, the U-shaped plate is fixedly installed on the front of the machine table, and the first linear motor is fixedly installed in the middle of the front of the back plate.

[0010] Preferably, on the bottom surfaces of the two second linear motors, connecting sliders are fixedly installed. The connecting sliders are slidably installed in the chute.

[0011] Preferably, the two centering baffles are symmetrically arranged, and the bottom end of the threaded vertical rod is fixedly connected to the top end of the output shaft of the second motor.

[0012] Compared with the prior art, the beneficial effects of the present utility model are:

[0013] The test bench for testing the efficiency of the gearbox can adjust the distance between the two second linear motors and the centering baffle according to the size of the tested gearbox, so that the bottom mounting base of the gearbox can be exactly centered between the two centering baffles. While adapting to install the gearbox, it can also center the gearbox, facilitating subsequent alignment and docking with the test components, effectively improving the installation efficiency of the gearbox, enhancing the test efficiency, and having stronger practicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic three-dimensional structure diagram of the whole of the present utility model;

[0015] Figure 2 is a schematic three-dimensional structure diagram of the basic components of the present utility model;

[0016] Figure 3 is a schematic three-dimensional structure diagram of the test components of the present utility model;

[0017] Figure 4 is a schematic three-dimensional structure diagram of the docking components of the present utility model.

[0018] In the figure: 1. Basic components; 101. Machine table; 102. Back plate; 103. Slide groove; 2. Test components; 201. First linear motor; 202. First motor; 203. Disc; 204. Docking pin; 3. Docking components; 301. U-shaped plate; 302. Second motor; 303. Threaded vertical rod; 304. Threaded lifting plate; 305. Transmission inclined rod; 306. Sliding block; 307. Second linear motor; 308. Cylinder; 309. Positioning pin; 310. Centering baffle; 311. Connecting slider. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0020] As Figures 1-4 shown, the present utility model provides a technical solution: including basic components 1, a test component 2 for testing a new energy vehicle gearbox is fixedly installed at the rear end of the top surface of the basic components 1, a docking component 3 is fixedly installed on the front surface of the basic components 1, the basic components 1 include a machine table 101, a back plate 102 is fixedly installed at the rear end edge of the top surface of the machine table 101, and a slide groove 103 is opened at the front end edge of the top surface of the machine table 101;

[0021] The docking component 3 includes a U-shaped plate 301. In the middle of the bottom surface of the U-shaped plate 301, a second motor 302 is fixedly installed. In the middle of the inner bottom surface of the U-shaped groove of the U-shaped plate 301, a threaded vertical rod 303 is rotatably installed. Between the inner walls on both sides of the U-shaped groove, a threaded lifting plate 304 is slidably installed. The threaded lifting plate 304 is threadedly sleeved on the threaded vertical rod 303. On both sides of the middle of the top surface of the threaded lifting plate 304, a transmission inclined rod 305 is rotatably installed. Through grooves are formed in the top surface of the U-shaped plate 301. At both ends of the through grooves, sliding blocks 306 are slidably installed. The two transmission inclined rods 305 correspond to the two sliding blocks 306 one by one. The top end of the transmission inclined rod 305 is rotatably connected to the bottom surface of the sliding block 306. On the top of the back of the two sliding blocks 306, a second linear motor 307 is fixedly installed. On the top surface of the sliders of the two second linear motors 307, a cylinder 308 is fixedly installed. On the top end of the piston rod of the two cylinders 308, a positioning pin 309 is fixedly installed. On the outer side of the two second linear motors 307, a central baffle 310 is fixedly installed.

[0022] In this embodiment, the testing component 2 includes a first linear motor 201. On the front of the slider of the first linear motor 201, a first motor 202 is fixedly installed.

[0023] One end of the output shaft of the first motor 202 is fixedly installed with a disc 203. On the front of the disc 203, a plurality of docking pins 204 are fixedly installed. The plurality of docking pins 204 are annularly distributed on the front of the disc 203. By controlling the docking pins 204 to be inserted into the round holes formed on the surface of the connection disc, the docking of the testing component 2 and the gearbox can be completed.

[0024] The U-shaped plate 301 is fixedly installed on the front of the machine table 101. The first linear motor 201 is fixedly installed in the middle of the front of the back plate 102, which is convenient for adjusting the height of the disc 203 so that it can be docked with the connection discs of gearboxes of different sizes.

[0025] On the bottom surface of the two second linear motors 307, a connection slider 311 is fixedly installed. The connection slider 311 is slidably installed in the chute 103, which improves the moving stability of the second linear motor 307.

[0026] The two central baffles 310 are symmetrically arranged. The bottom end of the threaded vertical rod 303 is fixedly connected to the top end of the output shaft of the second motor 302. The cylinder 308 is located in the inner groove of the second linear motor 307. Insert the square convex base of the gearbox between the two central baffles 310. The edges on both sides of the bottom surface of the square convex base will overlap on the top surface of the second linear motor 307. Then, manually pushing the gearbox can make the gearbox move in a fixed direction and stably towards the testing component 2.

[0027] During use, the distance between the two second linear motors 307 and the centering baffle 310 can be adjusted according to the size of the new energy vehicle transmission to be tested, so that the bottom mounting base of the transmission can be exactly centered between the two centering baffles 310. While adapting to install the transmission, it can also achieve the centering effect of the transmission, facilitating subsequent alignment and docking with the test component 2. The specific adaptation steps are as follows. Start the second motor 302, and the second motor 302 drives the threaded vertical rod 303 to rotate. The rotation of the threaded vertical rod 303 can drive the threaded lifting plate 304 to lift and lower. The lifting and lowering of the threaded lifting plate 304 can drive the bottom end of the transmission inclined rod 305 to lift and lower. Since the sliding block 306 rotatably connected to the top end of the transmission inclined rod 305 is slidably installed in the through groove, the lifting and lowering of the bottom end of the transmission inclined rod 305 can drive the sliding block 306 to slide in the chute 103. The movement of the sliding block 306 can drive the two second linear motors 307 and the two centering baffles 310 to approach or move away from each other, thereby adapting to transmissions of different sizes. The steps for installing the transmission are as follows. Insert the square convex base of the transmission between the two centering baffles 310. The bottom edges on both sides of the square convex base will overlap on the top surfaces of the second linear motors 307. Subsequently, manually push the transmission to make it move in a directional and stable manner towards the test component 2. Start the first linear motor 201 to lift and lower the first motor 202 and the disc 203. The lifting and lowering of the disc 203 makes the connection disc of the transmission be oppositely installed to the disc 203. During the opposition process, control the docking pin 204 to insert into the circular opening formed on the surface of the connection disc. Subsequently, control the movement of the slider of the second linear motor 307 to drive the cylinder 308 to move. The cylinder 308 moves to the docking hole formed on the bottom surface of the square convex seat. Subsequently, driven by the cylinder 308, the positioning pin 309 will protrude from the inner groove of the second linear motor 307 and insert into the docking hole formed on the bottom surface of the square convex seat, thereby quickly completing the limit of the transmission. Later, start the first motor 202 to drive the disc 203 to rotate for testing. The output disc 203 drives the transmission to rotate for testing. By changing the rotation speed of the first motor 202, the shift speed switching test of the transmission can be realized. During the above process, an external power supply provides the required electrical energy for the electrical appliances inside this test bench.

[0028] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A test bench for gearbox efficiency testing, comprising a basic component (1), characterized in that A test assembly (2) for testing a gearbox of a new energy vehicle is fixedly mounted on the rear end of the top surface of the basic assembly (1); a docking assembly (3) is fixedly mounted on the front of the basic assembly (1); the basic assembly (1) comprises a machine platform (101); a back plate (102) is fixedly mounted on the rear end edge of the top surface of the machine platform (101); and a slide groove (103) is provided on the front end edge of the top surface of the machine platform (101); The docking assembly (3) comprises a circular plate (301), a second motor (302) is fixedly mounted in the middle of the bottom surface of the circular plate (301), a threaded vertical rod (303) is rotatably mounted in the middle of the bottom surface of the circular groove of the circular plate (301), a threaded lifting plate (304) is slidably mounted between the inner walls of both sides of the circular groove, the plate body of the threaded lifting plate (304) is threadedly sleeved on the threaded vertical rod (303), transmission inclined rods (305) are rotatably mounted on both sides of the middle of the top surface of the threaded lifting plate (304), and a through groove is opened on the top surface of the circular plate (301), and both ends of the through groove are slidably mounted. A sliding block (306) is installed, the two transmission oblique rods (305) correspond to the two sliding blocks (306) one by one, the top of the transmission oblique rod (305) is rotatably connected to the bottom of the sliding block (306), a No. 2 linear motor (307) is fixedly installed on the top of the back of the two sliding blocks (306), a cylinder (308) is fixedly installed on the top of the slider of the two No. 2 linear motors (307), a positioning pin (309) is fixedly installed on the top of the piston rod of the two cylinders (308), and a center baffle (310) is fixedly installed on the outer side of the two No. 2 linear motors (307).

2. A test bench for gearbox efficiency testing according to claim 1, characterized in that: The test assembly (2) comprises a number one linear motor (201), and a number one motor (202) is fixedly mounted on the front face of a slider of the number one linear motor (201).

3. A test bench for gearbox efficiency testing according to claim 2, characterized in that: A disc (203) is fixedly mounted on one end of the output shaft of the first motor (202), and a plurality of docking pins (204) are fixedly mounted on the front of the disc (203). The plurality of docking pins (204) are distributed in a ring shape on the front of the disc (203).

4. A test bench for gearbox efficiency testing according to claim 2, characterized in that: The circular plate (301) is fixedly mounted on the front of the machine platform (101), and the first linear motor (201) is fixedly mounted on the middle of the front of the back plate (102).

5. A test bench for gearbox efficiency testing according to claim 1, characterized in that: The bottom surfaces of the two second linear motors (307) are both fixedly mounted with connecting sliders (311), and the connecting sliders (311) are slidably mounted in the slide grooves (103).

6. A test bench for gearbox efficiency testing according to claim 1, characterized in that: The two center baffles (310) are symmetrically arranged, and the bottom end of the threaded vertical rod (303) is fixedly connected to the top end of the output shaft of the second motor (302).

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