CN109773732B - An adjustable base for transmission test bench - Google Patents

Abstract

The utility model provides an adjustable base for derailleur test bench, includes the rack bottom plate, be provided with the slide rail on the rack bottom plate, slidable is provided with 2 connecting plates on the slide rail, the connecting plate is connected with the lead screw through screw nut, the screw thread of lead screw both sides revolves to opposite in order to drive 2 the connecting plate is separated or opposite, every all be connected with the lift drive structure that can vertically go up and down on the connecting plate, the end connection of lead screw has horizontal drive structure. According to the invention, when testing different types of speed variators, the speed variators can be directly installed without replacing the clamp, but the test can be performed, so that the problem that the clamp is replaced due to the need of adjusting the center height and the distance between each part when testing different speed variators on the same speed variators test bed in the past is solved, and the speed variators test bench has the advantages of simple structure, high working efficiency and the like.

Description

An adjustable base for transmission test bench

Technical field

The invention relates to an adjustable base for a transmission test bench.

Background technique

Nowadays, cars, as the most common means of transportation, increasingly affect people's production and life. A car is composed of many parts, among which the transmission is a component that enables the car to obtain different traction and speed under different working conditions such as starting, climbing, turning, and accelerating. As one of the most important components of a car and the most technical part, its performance directly affects the power and fuel economy of the entire vehicle.

The automobile transmission test bench is a device used to test transmission performance. By evaluating various performance indicators, transmission manufacturers can improve and optimize the transmission and develop higher-quality transmission products. Usually, the base of the transmission test bench mainly includes the driving device, the tested transmission fixture, the load device, the accompanying test transmission fixture, the speed and torque sensor, the speed and torque sensor support seat, the bench bottom plate and various connectors and fasteners, etc. , The speed and torque sensor is generally connected to the transmission and then detects the speed and torque of the transmission under test.

Usually when testing different transmissions on the automobile transmission test bench, it is necessary to first replace the original fixture according to the transmission model and size, and after adjusting the relative position of the fixture, fix the fixture on the base plate, then install the transmission to be tested, and finally install the transmission Fastened to the clamp. It can be seen that the steps are complicated and time-consuming.

Therefore, an adjustable base for a transmission test bench is needed to adjust the center height and the horizontal distance between components, which solves the problem of having to replace the fixture when testing different transmissions on the same transmission test bench in the past. question.

Contents of the invention

In view of the shortcomings of the existing technology, the present invention provides an adjustable base for a transmission test bench, which has the advantages of simple mechanism, convenient operation, high adjustment efficiency, etc., and is beneficial to the transmission detection efficiency.

The specific technical solution of the present invention is as follows: an adjustable base for a transmission test bench, including a bench bottom plate, characterized in that a slide rail is provided on the bench bottom plate, and a slide rail is slidably provided on the slide rail. 2 connecting plates. The connecting plates are connected to a screw rod through a screw nut. The threads on both sides of the screw rod rotate in opposite directions to drive the two connecting plates apart or toward each other. Each connecting plate is connected to There is a lifting drive structure for driving the connecting plate to rise and fall, and the end of the screw rod is connected with a horizontal driving structure for rotating the screw rod to realize horizontal movement of the connecting plate.

When using the adjustable base in this application, the user can respectively set the tested transmission clamp and the accompanying test transmission clamp on the two connecting plates. The tested transmission clamp and the accompanying test transmission clamp clamp the tested transmission and accompanying test respectively. The transmission uses a horizontal drive structure and a lifting drive structure to adjust the horizontal and vertical positions of the tested transmission fixture and companion test transmission fixture for subsequent testing of the transmission, which solves the problem of testing different transmissions on the same transmission test bench in the past. When the fixture needs to be replaced, the movement of the two connecting plates can be realized through a screw rod, using fewer parts, optimizing the space of the adjustable base, making it convenient to replace the transmission to be tested, and it is easy to adjust and has high adjustment efficiency. , which will help improve subsequent detection of the transmission.

Preferably, the lifting drive structure includes a hydraulic cylinder or a pneumatic cylinder.

Preferably, the horizontal driving structure includes a driving motor; in this application, the driving motor drives the screw rod to rotate, which is convenient and effective.

Preferably, a speed and torque sensor for detecting the speed or torque of the transmission is provided between the connecting plates, and the speed and torque sensor is installed between the connecting plates through a sensor support; since the connecting plates are connected to the screw rod, , the lifting and lowering of the connecting plate will inevitably drive the lifting and lowering of the screw rod and the lifting and lowering of the entire platform bottom plate, so the sensor support seat is provided with a screw rod movable opening slot, and the screw rod passes through the screw rod movable opening slot. The base plate of the platform is provided with a corresponding sensor support seat through the notch. The existence of the movable opening slot of the screw rod provides space for the lifting and lowering of the screw rod. The setting of the sensor support seat through the notch prevents the platform bottom plate from contacting with it when it is lifted or lowered. There is interference in the sensor support.

Preferably, the number of said hydraulic cylinders or air cylinders is 4. The adjustable base of this application uses eight hydraulic cylinders or eight pneumatic cylinders to perform lifting and lowering movements at the same time, which can more easily and accurately achieve the purpose of consistent height and horizontal position of the center heights and horizontal positions of the transmissions on both sides and the intermediate speed and torque sensor, making it convenient for the three. connection to ensure detection accuracy.

Preferably, the connecting plate is connected to the slide rail through a slide block.

Preferably, the number of the slide rails is 2, and each slide rail is connected to the corresponding connecting plate through 2 slide blocks.

Preferably, the drive motor includes a control motor, and the control motor is connected to a host computer.

Preferably, the host computer is electrically connected to the lifting drive structure.

This setting makes it possible to directly control the horizontal and vertical positions of the transmission on the transmission fixture under test and the transmission fixture under test by operating the host computer, realizing automated control, simple operation, saving time and effort, thereby improving Test efficiency.

To sum up, the present invention has the following beneficial effects:

1. When testing different types of transmissions, you can install the transmission directly without replacing the fixture, and then you can conduct the test. This solves the problem of needing to adjust the center height and each transmission when testing different transmissions on the same transmission test bench in the past. The problem of replacing the fixture due to the distance between components has the advantages of simple mechanism, convenient operation, and high adjustment efficiency, which greatly improves the transmission detection efficiency.

2. When adjusting the horizontal and vertical positions, it can be controlled directly by controlling the host computer, realizing automatic control, simple operation, saving time and effort, thereby improving test efficiency.

Description of the drawings

Figure 1 is a schematic structural diagram of the adjustable base.

Detailed ways

The present invention will be further described below through specific embodiments in conjunction with the accompanying drawings.

Embodiment, as shown in Figure 1, an adjustable base for a transmission test bench includes a bench bottom plate 1, which is characterized in that a slide rail 2 is provided on the bench bottom plate 1, and the slide rail 2 Two connecting plates 3 are slidably provided on the top. The connecting plates 3 are connected to a screw rod 4 through a screw nut. The threads on both sides of the screw rod 4 rotate in opposite directions to drive the two connecting plates 3 away from each other or toward each other. , each connecting plate 3 is connected with a lifting drive structure 5 for driving the connecting plate 3 to rise and fall, and the end of the screw rod 4 is connected with a structure for rotating the screw rod 4 to achieve the level of the connecting plate 3 Mobile horizontal drive structure7. When using the adjustable base in this application, the user can respectively set the tested transmission clamp and the accompanying test transmission clamp on the two connecting plates. The tested transmission clamp and the accompanying test transmission clamp clamp the tested transmission and accompanying test respectively. For the transmission, the horizontal drive structure 7 and the lifting drive structure 5 are used to realize the horizontal and vertical position adjustment of the tested transmission clamp and the accompanying test transmission clamp, so as to facilitate the subsequent detection of the transmission and solve the problem of previous testing on the same transmission test bench. The problem of needing to replace the clamp when different transmissions are used, and the movement of the two connecting plates can be realized through a screw rod, using fewer parts, optimizing the space of the adjustable base, making it convenient to replace the transmission to be tested, and it is easy to adjust. It is highly efficient and helps improve subsequent detection of the transmission.

In this embodiment, the lifting drive structure 5 includes a hydraulic cylinder or a pneumatic cylinder, which is externally connected to a hydraulic pump or a pneumatic pump. At the same time, the horizontal drive structure 7 includes a drive motor, which drives the screw rod 4 to rotate, which is convenient. efficient.

Preferably, a rotational speed and torque sensor 6 for detecting the transmission rotational speed or torque is provided between the connecting plates 3. The rotational speed and torque sensor 6 is installed between the connecting plates 3 through a sensor support 8. The rotational speed and torque sensor 6 is installed between the connecting plates 3. The position of the sensor 6 is reasonably arranged, making it convenient to connect the transmission under test and the transmission under test, and it is relatively easy to measure the speed and torque of the transmission under test and the transmission under test; since the connecting plate 3 is connected to the screw rod 4, the connecting plate 3 The lifting and lowering will inevitably drive the lifting and lowering of the screw rod 4 and the lifting and lowering of the entire platform bottom plate 1. Therefore, the sensor support base 8 is provided with a screw rod movable opening slot 81, and the screw rod 4 passes through the screw rod movable opening slot. 81. The base plate 1 of the platform is provided with a corresponding sensor support seat through the notch 11. The existence of the movable opening slot 81 of the screw rod provides space for the lifting and lowering of the screw rod. The sensor support seat is provided through the notch 11 to prevent the platform from moving. The frame bottom plate 1 interferes with the sensor support base 8 when it is raised and lowered.

Preferably, the number of said hydraulic cylinders or air cylinders is 4. In other words, the adjustable base of this application uses eight hydraulic cylinders or eight pneumatic cylinders to perform lifting movements at the same time, which can more easily and accurately achieve the purpose of consistent height and horizontal position of the center of the transmission on both sides and the intermediate speed and torque sensor, which is convenient The connection of these three ensures detection accuracy.

Preferably, the connecting plate 3 is connected to the slide rail 2 through a slide block.

Preferably, the number of the slide rails 2 is two, and each slide rail 2 is connected to the corresponding connecting plate 3 through two slide blocks.

In order to further improve the test efficiency, preferably, the drive motor includes a control motor, and the control motor is connected to a host computer. The control motor can be a servo motor or a stepper motor. The host computer can be but is not limited to Siemens CP5611. The upper computer, at the same time, is electrically connected to the lifting drive structure 5. The lifting drive structure 5 can be the above-mentioned hydraulic cylinder or air cylinder. This setting makes it possible to directly control the horizontal and vertical positions of the transmission on the transmission fixture under test and the transmission fixture under test by operating the host computer, realizing automated control, simple operation, saving time and effort, thereby improving Test efficiency.

The above-described embodiments only describe the preferred embodiments of the present invention, and do not limit the concept and scope of the present invention. Without departing from the design concept of the present invention, various modifications and improvements made by ordinary people in the art to the technical solutions of the present invention shall fall within the protection scope of the present invention. All technical contents claimed for protection by the present invention have been stated in the claims.

Claims (8)

1. An adjustable base for a transmission test bench, including a bench bottom plate (1), characterized in that a slide rail (2) is provided on the bench bottom plate (1), and the slide rail (2 ) are slidably provided with 2 connecting plates (3). The connecting plate (3) is connected to a screw rod (4) through a screw nut. The threads on both sides of the screw rod (4) rotate in opposite directions to drive the 2 screw rods (4). The connecting plates (3) are separated or facing each other, and each connecting plate (3) is connected with a lifting drive structure (5) for driving the connecting plate (3) to rise and fall. The screw rod (4) ) is connected to the end with a horizontal driving structure (7) for rotating the screw rod (4) to realize horizontal movement of the connecting plate (3); The two connecting plates (3) are respectively provided with a fixture for the transmission under test and a fixture for the transmission under test, which clamp the transmission under test and the transmission under test respectively; A speed and torque sensor (6) for detecting transmission speed or torque is provided between the connecting plates (3). The speed and torque sensor (6) is installed on the connecting plate (3) through a sensor support seat (8). ); the sensor support seat (8) is provided with a screw rod movable opening slot (81), the screw rod (4) passes through the screw rod movable opening slot (81), and the platform bottom plate ( 1) There is a corresponding notch (11) for the sensor support base to pass through. 2. An adjustable base for a transmission test bench according to claim 1, characterized in that the horizontal drive structure (7) includes a drive motor. 3. An adjustable base for a transmission test bench according to claim 1, characterized in that the lifting drive structure (5) includes a hydraulic cylinder or a pneumatic cylinder. 4. An adjustable base for a transmission test bench according to claim 3, characterized in that the number of the hydraulic cylinders or air cylinders is four. 5. An adjustable base for a transmission test bench according to claim 1, characterized in that the connecting plate (3) is connected to the slide rail (2) through a slider. 6. An adjustable base for a transmission test bench according to claim 5, characterized in that the number of the slide rails (2) is 2, and each slide rail (2) passes through 2 The slider is connected to the corresponding connecting plate (3). 7. An adjustable base for a transmission test bench according to claim 2, wherein the drive motor includes a control motor, and the control motor is connected to a host computer. 8. An adjustable base for a transmission test bench according to claim 7, characterized in that the host computer is electrically connected to the lifting drive structure (5).