CN108398264A - RV speed reducers and testing stand connecting tooling and RV speed reducer testing stands - Google Patents

Abstract

The present invention discloses a kind of RV speed reducers and testing stand connecting tooling and RV speed reducer testing stands.The RV speed reducers include main shaft with testing stand connecting tooling and the bearing block that is connect by bearing with the main shaft, the side of the bearing block is connected with the transition connecting disc being fixedly connected with bearing block side for that will be tested speed reducer, and the main shaft is directed toward experiment input gear axle of one end rigid connection of subject speed reducer for being connect with subject speed reducer by the other end.The present invention, which is tested, to be rigidly connected with input gear axle with the main shaft installed in driving bearing block, and adjustment of balance is more superior, and vibration and noise are all controllable and smaller；And input gear axle uses mandrel tight-holding type connection type, concentricity good with main shaft.

Description

RV reducer and test bench connection tooling and RV reducer test bench

technical field

The invention relates to the technical field of test benches, in particular to a connecting tool between an RV reducer and a test bench and a test bench for an RV reducer.

Background technique

With the rapid development of the robot industry, the requirements of robot reducers in terms of transmission accuracy, vibration, noise, and life are getting higher and higher. This puts forward higher requirements for the reducer test bench.

Traditional test benches usually arrange motors, accelerators, sensors, etc. in sequence for testing. In order to complete the relevant tests of the RV reducer on the test bench, such as overspeed test, overload test and efficiency test, and to record the temperature rise, vibration and noise data during the test, the test piece is usually installed on the test bench, The test bench usually includes a drive system and a loading system; the test piece needs to be fixedly installed on the drive system, and connected to the torque sensor of the drive system through a connecting tool. It leads to low installation accuracy and has a great impact on the analysis of the experimental results of the reducer, so it needs to be improved.

Contents of the invention

The object of the present invention is to provide a tool for connecting an RV reducer to a test bench and a test bench for an RV reducer aiming at the technical defects existing in the prior art.

The technical scheme adopted for realizing the purpose of the present invention is:

A tool for connecting an RV reducer to a test bench, including a main shaft and a bearing seat connected to the main shaft through bearings, one side of the bearing seat is connected with a transition connection for fixedly connecting the tested reducer to one side of the bearing seat One end of the main shaft pointing to the tested reducer is rigidly connected to the test input gear shaft connected to the tested reducer through the other end.

The test input gear shaft is connected to the main shaft through a shaft clamping structure.

The two ends of the transition connection plate have positioning internal spigots, so as to achieve positioning and connection with the bearing seat and the tested reducer and then fix it.

The transition connection plate is connected with the bearing seat and the tested reducer by screws.

Another aspect of the present invention is to provide a RV reducer test bench, including a bed, a drive motor installed on the bed through a first slide, a drive side torque sensor and a connecting tool for the RV reducer, the drive The motor is connected to the drive side torque sensor with the shaft center, the drive side torque sensor is connected to the RV reducer connection tool with the shaft center drive connection; and the loading motor installed on the bed through the second slide, A reducer connected to the loading motor and a load-side torque sensor connected to the other end of the reducer, the RV reducer connection tool adopts the RV reducer and test bench connection tool.

Both ends of the load-side torque sensor have diaphragm couplings respectively, one of which is connected to the reducer, and the other diaphragm is used to connect to the output connection shaft installed on the tested reducer.

The connection end of the diaphragm coupling used to connect with the output connection shaft installed on the tested reducer has an internal spline structure, and is connected with the output connection shaft through the internal spline structure.

The first slide table is a cross slide table capable of moving in X and Y directions, and the second slide table is a slide table capable of axial movement.

Both the first slide and the second slide are provided with adjusting handwheels.

The RV speed reducer of the present invention is connected to the test bench. The input gear shaft for the test is rigidly connected to the main shaft installed in the drive bearing seat. Compared with the floating connection of the elastic coupling connection mode, the high-speed balance is better, and the vibration and noise can be reduced. controlled and small;

In addition, the input gear shaft and the main shaft adopt the mandrel-hugging connection method, which has good coaxiality, and the coaxiality error after assembly can be less than 0.006mm through the calibration method of the process mandrel, and the structure is simple;

The tested reducer is connected to the bearing seat through a ring-shaped transition connection plate. Both ends of the transition connection connection plate are positioned by internal seams. Since the internal seams at both ends can be processed in one clamping, it is easy to ensure high coaxiality. The coaxiality error is less than 0.005mm, which can realize the fast and accurate connection between the tested reducer and the drive end, and can ensure that the coaxiality error between the main shaft of the bearing seat and the tested reducer is within 0.02mm;

Among them, the bearing seat can adopt SKF self-lubricating bearing or SKF oil spray lubrication method, which can ensure that the bearing seat has good thermal stability and stability under high-speed working conditions.

Description of drawings

Figure 1 is a schematic structural diagram of the connection tooling between the RV reducer and the test bench;

Fig. 2 is a schematic structural view of the RV reducer test bench installed with the connecting tool shown in Fig. 1 .

Detailed ways

The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

Referring to Fig. 1, a tool for connecting an RV reducer to a test bench includes a main shaft 40 and a bearing housing 20 connected to the main shaft through a bearing 21, bearing end covers 22 on both sides of the bearing housing, and the bearing housing One side is connected with a transition connection plate 10 for fixedly connecting the tested reducer 100 to one side of the bearing seat, and the main shaft is directed to one end of the tested reducer 100, which is rigidly connected for connecting with the tested reducer 100 through the other end. The input gear shaft 30 is used for the test, and the transition output shaft 110 is connected to the speed reducer under test.

Wherein, the other end of the main shaft is connected to the drive-side torque sensor 2 through a shaft coupling, and the drive-side torque sensor 2 is connected to the output shaft of the drive motor 1 , as shown in FIG. 1 .

Wherein, the input gear shaft for the test and the main shaft may be rigidly connected through an existing shaft clamping structure for shaft connection.

Wherein, the two ends of the transition connection plate have positioning internal spigots, so as to realize positioning and connection with the bearing seat and the tested reducer and then fix it.

Wherein, the transition connection plate is connected with the bearing seat and the tested reducer through axial screws, that is, the transition connection plate, the bearing seat and the tested reducer are respectively positioned through corresponding positioning notches, and then respectively connected by screws.

It should be noted that in order to meet the tests of different types of reducers, different adapter transition connection plates and adapter connection shafts can be used specifically. Among them, the output end adapts the connection shaft to take into account the installation of the output shaft grating measurement system. In order to avoid introducing errors due to deformation, the output end connection shaft is required to have sufficient rigidity.

The RV speed reducer of the present invention is connected to the test bench. The input gear shaft for the test is rigidly connected to the main shaft installed in the drive bearing seat. Compared with the floating connection of the elastic coupling connection mode, the high-speed balance is better, and the vibration and noise can be reduced. controlled and small;

In addition, the input gear shaft and the main shaft adopt the mandrel-hugging connection method, which has good coaxiality, and the coaxiality error after assembly can be less than 0.006mm through the calibration method of the process mandrel, and the structure is simple;

The tested reducer is connected to the bearing seat through a ring-shaped transition connection plate. Both ends of the transition connection connection plate are positioned by internal seams. Since the internal seams at both ends can be processed in one clamping, it is easy to ensure high coaxiality. The coaxiality error is less than 0.005mm, which can realize the fast and accurate connection between the tested reducer and the drive end, and can ensure that the coaxiality error between the main shaft of the bearing seat and the tested reducer is within 0.02mm;

Among them, the bearing seat can adopt SKF self-lubricating bearing or SKF oil spray lubrication method, which can ensure that the bearing seat has good thermal stability and stability under high-speed working conditions.

Referring to Fig. 2, another aspect of the present invention is to provide a RV reducer test bench, including a bed 200, a drive motor 1 and a drive side torque sensor 2 mounted on the bed through a first slide 210 And the RV reducer connecting tool 300 for fixing the RV reducer on the driving end, the driving motor is connected with the drive side torque sensor with the same axis, and the driving side torque sensor is connected with the RV reducer connecting tool Shaft center transmission connection; and the loading motor 4 installed on the bed through the second slide table 220, the speed reducer 3 connected with the loading motor and the loading side torque sensor 5 connected with the other end of the speed reducer, wherein, The RV reducer connection tool adopts the RV reducer and test bench connection tool described in the above embodiment.

Wherein, there are diaphragm couplings 6 at both ends of the load-side torque sensor, one of which is connected to the speed reducer, and the other diaphragm coupling is used to connect with the output connection shaft 110 installed on the tested speed reducer. connected.

Wherein, the connection end of the diaphragm coupling 6 used to connect with the output connection shaft installed on the tested reducer has an internal spline structure, and is connected with the output connection shaft through the internal spline structure. Wherein, the output connection shaft of the tested reducer is connected to the tested reducer by a flange, and is connected to the loading end by a spline structure, that is, the diaphragm coupling on the left side of the torque sensor 5 at the loading end is connected to the output One side of the shaft connection is designed as an internal spline structure to realize connection with the output connection shaft 110, so that the output connection shaft and the diaphragm separator can be easily separated and connected through the axial movement of the output connection shaft.

Wherein, the first slide table is a cross slide table capable of moving in X and Y directions, and the second slide table is a slide table capable of axial movement.

Wherein, both the first sliding table and the second sliding table are provided with adjusting handwheels 230 .

The test bench of the present invention has low vibration sensitivity and high reliability, the driving end can move in X and Y directions, and can simultaneously adapt to the test of RV-E, N series and RV-C series reducers.

The bed adopts a cast iron structure. Due to the high driving speed, the design of the bed needs to avoid resonance and carry out anti-vibration and vibration isolation design. For this reason, the bed is designed to have a thickness of 300 mm, which can effectively prevent tremors during the test. In order to have high guiding precision and ensure high rigidity of the system, the sliding table of the loading adjustment mechanism adopts high-precision sliding guide rails, and the guiding precision of the guide rails is not less than 0.01mm/m.

In the test bench of the present invention, the input gear shaft for the test is rigidly connected to the main shaft installed in the drive bearing seat, and compared with the floating connection of the elastic coupling connection mode, the high-speed balance is superior, and the vibration and noise are controllable and small;

In addition, the input gear shaft and the main shaft adopt the mandrel-hugging connection method, which has good coaxiality, and the coaxiality error after assembly can be less than 0.006mm through the calibration method of the process mandrel, and the structure is simple;

The tested reducer is connected to the bearing seat through a ring-shaped transition connection plate. Both ends of the transition connection connection plate are positioned by internal seams. Since the internal seams at both ends can be processed in one clamping, it is easy to ensure high coaxiality. The coaxiality error is less than 0.005mm, which can realize the fast and accurate connection between the tested reducer and the drive end, and can ensure that the coaxiality error between the main shaft of the bearing housing and the main shaft of the tested reducer is within 0.02mm;

Among them, the bearing seat can adopt SKF self-lubricating bearing or SKF oil spray lubrication method, which can ensure that the bearing seat has good thermal stability and stability under high-speed working conditions.

The above is only a preferred embodiment of the present invention, it should be pointed out that, for those of ordinary skill in the art, without departing from the principle of the present invention, some improvements and modifications can also be made, these improvements and Retouching should also be regarded as the protection scope of the present invention.

Claims (9)

1. A tool for connecting an RV reducer to a test bench, characterized in that it includes: The main shaft and the bearing seat connected to the main shaft through bearings, one side of the bearing seat is connected with a transition connection plate for fixedly connecting the tested reducer with one side of the bearing seat, and the main shaft points to one end of the tested reducer The rigid connection is used for the test input gear shaft connected to the tested reducer through the other end. 2 . The connection tool between the RV reducer and the test bench according to claim 1 , wherein the test input gear shaft is connected to the main shaft through a shaft clamping structure. 3 . 3. According to claim 2, the connection tool between the RV reducer and the test bench is characterized in that, the two ends of the transition connection plate have positioning internal spigots, so as to realize positioning and connection with the bearing seat and the tested reducer. fixed. 4 . The connection tool between the RV reducer and the test bench according to claim 3 , wherein the transition connection plate is connected to the bearing seat and the tested reducer by screws. 5. A RV reducer test bench, comprising a bed, a drive motor installed on the bed through a first slide, a drive side torque sensor and an RV reducer connection tool, the drive motor and the drive side torque The sensor is connected with the shaft center transmission, the driving side torque sensor is connected with the RV reducer connection tooling with the shaft center transmission connection; and the loading motor installed on the bed through the second sliding table, and the speed reducer connected with the loading motor And the load-side torque sensor connected to the other end of the reducer, characterized in that, the RV reducer connection tool adopts the RV reducer and test bench connection tool described in any one of claims 1-4. 6. The RV reducer test bench according to claim 5, characterized in that, the two ends of the loading side torque sensor have diaphragm couplings respectively, wherein one diaphragm connecting shaft is connected with the reducer, and the other diaphragm is connected to the reducer. The coupling is used to connect with the output connection shaft installed on the tested reducer. 7. The RV reducer test bench according to claim 6, characterized in that, the connecting end of the diaphragm coupling used to be connected to the output connection shaft installed on the tested reducer has an internal spline structure, through which The internal spline structure is connected with the output connecting shaft. 8. The RV reducer test bench according to claim 6, wherein the first slide table is a cross slide table capable of moving in X and Y directions, and the second slide table is a slide table that moves axially . 9. The RV reducer test bench according to claim 6, characterized in that, both the first sliding table and the second sliding table are provided with adjustment handwheels.