CN112378649B - Speed reducer fixing device for speed reducer comprehensive experiment table - Google Patents

Abstract

The invention relates to a reducer fixing device for a reducer comprehensive test bench, a reducer fixing device for a reducer comprehensive test bench, comprising a fixing bracket, a reducer clamping mechanism, a clamping drive device and a lifting support mechanism, the clamping mechanism of the reducer includes two clamping blocks symmetrically arranged on the left and right sides of the fixed bracket, and the two clamping blocks are installed on the clamping drive device to face each other synchronously under its drive Or move in reverse, and then clamp or loosen the reducer. The lifting support mechanism is installed at the lower part of the fixed bracket to lift the reducer to a set height and assist the installation of the reducer. The device can not only fix and install the reducer on the test bench accurately, conveniently and efficiently, but also can adapt to reducers of different structural sizes.

Description

A reducer fixing device for reducer comprehensive test bench

technical field

The invention belongs to the technical field of reducer testing, and in particular relates to a reducer fixing device used for a reducer comprehensive test bench.

Background technique

The manufacturing industry is the foundation of the national economy, and it is also the main battlefield of "innovation-driven, transformation and upgrading" of my country's economy in the future. The advantages of industrial robots replacing manual work are becoming more and more obvious. In the future, industrial robots will play a more critical role. At the same time, as the core component of an industrial robot, the reducer accounts for 35% of the cost of the whole machine. The design and manufacture of its detection platform are related to the detection accuracy and efficiency of the reducer. The requirements are different, and the dimensions of the reducer are also different. To achieve the accuracy measurement of the multi-scale, high-efficiency precision reducer is one of the key issues in the comprehensive performance test of the reducer at this stage. Therefore, the research on the comprehensive performance test platform of the precision reducer has great engineering application value for the measurement efficiency and production of the drive reducer.

The existing precision reducer comprehensive test platform mainly adopts a horizontal test bench, and the driving motor, torque, reducer and load motor are installed on the same horizontal plane, as shown in patents CN201910012641.1 and CN201210385572.7. The installation of the tested reducer is one of the key steps to realize the test, which directly determines the detection accuracy. There are two difficulties in the installation of the reducer: the first one is the fixation of the reducer. The size of the tested reducer installed on the fixed bracket of the existing test platform is relatively single, and only the reducer whose external dimension is the same as that of the processed mounting hole in the fixed bracket can be installed. However, the external dimensions of the reducer under different working conditions are not the same. To solve this problem, the existing method is to process the corresponding mounting plate according to the external dimensions of the installed reducer before installing the reducer, and then The installation and fixation of the tested reducer is realized through a special mounting plate. If the size of the reducer is too large or too small, the entire fixing bracket can be replaced directly. The second is the positioning of the reducer. Most of the reducers are very heavy, and multiple people are required to coordinate the installation before positioning. Two people lift the reducer, and the other pushes the reducer into the hole to be installed. The installation efficiency is very low, and it is difficult to achieve deceleration. The centering of the reducer in the horizontal direction and the mounting bracket is also a severe challenge to the physical strength and operating experience of the operator. There are also a small number of auxiliary installations using electric hoists, but because the height is difficult to control, it is difficult to ensure the centering of the fixed installation of the reducer It can be seen from the above that due to the different sizes of the tested reducers, and the commonly used horizontal reducer mounting holes are processed fixed holes, it is impossible to realize the installation of multi-size reducers. The measurement of the reducer needs to replace the entire mounting frame, and the manufacturing accuracy and manufacturing cost of the mounting frame are high, which is easy to cause waste of resources.

With the rapid development of reducer design and manufacturing level, the external dimensions of reducers are increasing from 120mm to 500mm in diameter. Although the reducer test system has been effectively improved at home and abroad, it is still necessary to design different types of reducers. Different types of reducer mounting brackets lack an automatic and efficient replacement type precision reducer installation device that can be installed across scales.

Contents of the invention

The purpose of the present invention is to provide a reducer fixing device for the comprehensive test bench of the reducer. device.

In order to achieve the above object, the technical solution adopted in the present invention is: a speed reducer fixing device for the comprehensive test bench of the speed reducer, including a fixed bracket, a speed reducer clamping mechanism, a clamping drive device and a lifting support mechanism, the speed reducer The clamping mechanism of the device includes two clamping blocks symmetrically arranged on the left and right sides of the fixed bracket, and the two clamping blocks are installed on the clamping drive device to move synchronously in opposite directions or in reverse directions driven by it. Then clamp or loosen the reducer, and the lifting support mechanism is installed on the lower part of the fixed bracket to lift the reducer to a set height and assist the installation of the reducer.

Further, the fixed bracket is installed on the reducer comprehensive test bench.

Further, the clamping block is equipped with a variety of speed reducer fixing plates of different shapes and specifications, and a variety of different types of fixing bolt holes are distributed in different positions on the clamping block, and the speed reducer is clamped on the clamping block. Finally, install the reducer fixing plate of the corresponding shape and specification through the corresponding fixing bolts, and the other side of the reducer fixing plate is fixedly connected with the reducer, so as to adapt to fix the reducer with different structural sizes and prevent the reducer from rotating. .

Further, the clamping block has a V-shaped structure, so that the two clamping blocks move towards each other synchronously to form a diamond-shaped clamping space to clamp the reducer.

Further, a guide rod is connected to the middle part of the outside of the clamping block, guide through holes adapted to the guide rods are opened on the left and right sides of the fixed bracket, and the guide rods of the two clamping blocks pass through the corresponding The through hole is guided and slidably matched with it to further guide the movement of the clamping block to ensure the centering during the installation of the reducer.

Further, the clamping driving device is composed of two driving mechanisms arranged symmetrically on the upper and lower sides of the fixed bracket. The driving mechanism includes a slide rail, two sliders, a power unit and a rotating block. The two One slider is installed on the slide rail, one end of the two clamping blocks is respectively installed on the corresponding slider, the middle part of the slide rail is fixed with a fixing seat, and the body of the power unit is installed on one of the sliders The lower part of the push rod, and the front end of the push rod is fixedly connected to the lower part of the fixed seat, the rotating block is connected to the upper part of the fixed seat in rotation, and the two outer parts of the rotating block are respectively hinged to the two sliders through a connecting rod, so as to realize the slider and the rotation Sliding and rotation conversion between blocks; when the push rod is stretched or retracted, one of the sliders is driven away from or close to the middle of the slide rail, and then the rotating block is driven to rotate, thereby driving the other slider to be linked to realize the synchronous reverse of the two sliders or relative motion.

Further, the power unit is an electric push rod or a hydraulic cylinder.

Further, the lifting support mechanism includes a hydraulic lifting top and a support base, the hydraulic lifting top is installed on the lower part of the front end of the fixed bracket, and the support base is installed on the hydraulic lifting top to rise or fall under its driving, and the deceleration The device is transported to the set height.

Compared with the prior art, the present invention has the following beneficial effects: it provides a fixing device that can install various types of reducers with different structural sizes on the reducer comprehensive test bench. The fixed bracket reducer on the test bench has a single type of installation, and the detection and installation efficiency is low, which improves the installation efficiency and installation accuracy, and reduces the requirements for the operator in the installation of the reducer; on the other hand, by adjusting the clamping on the fixed bracket The block can be adapted to the installation and testing of reducers of different dimensions, which greatly improves the utilization rate of the test platform and saves the testing cost of the reducer. Therefore, the present invention has strong practicability and wide application prospect.

Description of drawings

Fig. 1 is a schematic structural diagram of a reducer comprehensive test bench in an embodiment of the present invention.

Fig. 2 is a schematic diagram of the device structure of the embodiment of the present invention.

Fig. 3 is a schematic diagram of the connection structure between the clamping mechanism of the reducer and the clamping driving device in the embodiment of the present invention.

Fig. 4 is a schematic view of the front structure of the clamping drive device in the embodiment of the present invention.

Fig. 5 is a schematic diagram of the back structure of the clamping driving device in the embodiment of the present invention.

Detailed ways

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

In order to better explain the superiority of the present invention, first explain the structure and working process of the reducer comprehensive test bench, as shown in Figure 1, load motor 21, torque sensor 22, grating 23, fixed bracket 1, grating 24, torque sensor 25 1. The load motor 26 is arranged in a line from right to left, and the power is input from the load motor through the transmission shaft to the input end of the reducer, and then the output end of the reducer is connected to a grating, etc., to realize the detection of the input and output signals of the reducer. For the detection of the performance of the above-mentioned reducer, the key lies in the positioning and installation of the reducer. For the installation of the existing reducer, only one or two types of reducer can be installed on the fixed bracket, and it cannot be directly installed on the fixed bracket. Only a specific reducer fixing plate can be installed on the fixed bracket, which increases the cost of the reducer inspection. The existing fixed bracket fixes the tested reducer with problems such as single model; secondly, for the installation of the reducer, most of them are installed manually. It requires the cooperation of multiple people to install the reducer into the fixed bracket. It is difficult to guarantee the installation accuracy and neutrality, and it is also very challenging for the installer's physical strength and installation experience; there are also a few parts that are assisted by electric hoist cranes. However, in During the installation process, the height is difficult to control, which makes it difficult to align the positioning holes between the horizontal axis and the fixing, and there are problems such as low installation efficiency of the reducer. For the problems of single type, low manual installation and positioning accuracy, and low installation efficiency in the installation of the tested reducer by the existing fixed bracket, the present invention provides a reducer fixing device to solve the above problems.

Please refer to Figure 2-5, the reducer fixing device used in the reducer comprehensive test bench of the present invention includes a fixed bracket 1, a reducer clamping mechanism, a clamping drive device and a lifting support mechanism, and the fixed bracket 1 is installed on the reducer On the comprehensive test bench of the reducer, the clamping mechanism of the reducer includes two clamping blocks 2 symmetrically arranged on the left and right sides of the fixed bracket, and the two clamping blocks 2 are installed on the clamping drive device to Driven by it, it moves synchronously in the opposite direction or in the opposite direction, and then clamps or loosens the reducer. The lifting support mechanism is installed at the lower part of the fixed bracket to lift the reducer to the set height, and cooperates with the clamping drive device to realize the installation of the reducer. .

Wherein, the clamping block 2 is equipped with a variety of different shapes and specifications of the reducer fixing plate 3, and there are various types of fixing bolt holes 4 distributed in different positions on the clamping block 2. After tightening the reducer, install the reducer fixing plate of the corresponding shape and specification through the corresponding fixing bolts, and the other side of the reducer fixing plate is fixedly connected with the reducer, so as to adapt to and fix the reducer with different structural sizes and prevent deceleration. The device rotates. In this embodiment, the fixed plate of the reducer is L-shaped and T-shaped, and the corresponding fixed plate of the reducer can be selected according to different types of reducer; the fixed plate of the reducer is provided with different types of fixing holes. The shape can meet the installation of the reducer, which effectively avoids the problem of the reducer rotating under the condition of high torque.

The clamping block 2 has a V-shaped structure, so as to form a diamond-shaped clamping space to clamp the speed reducer through the synchronous movement of the two clamping blocks towards each other. The middle part of the outer side of the clamping block is connected with a guide rod 5, and the left and right sides of the fixed bracket 1 are respectively provided with guide through holes suitable for the guide rod, and the guide rods of the two clamping blocks pass through the corresponding guide rods respectively. The through hole is slidably matched with it to further guide the movement of the clamping block, effectively ensuring the smooth movement of the clamping block of the reducer while improving the rigidity, and ensuring the centering of the reducer during installation.

The clamping driving device is composed of two driving mechanisms symmetrically arranged on the upper and lower sides of the fixed bracket. The driving mechanism includes a slide rail 6, two sliding blocks 7, a power unit 8 and a rotating block 9. Two slide blocks 7 are installed on the slide rail 6, and one end of the two clamping blocks 2 is respectively installed on the corresponding slide block 7, and the middle part of the slide rail 6 is fixedly provided with a fixing seat 10, and the power unit 8 The body of the slider is installed on the lower part of one of the sliders, and the front end of the push rod 11 is fixedly connected to the lower part of the fixed seat 10. The rotating block 9 is rotatably connected to the upper part of the fixed seat 10, and the two outer parts of the rotating block 9 are respectively connected through a connecting rod. 12 is hinged with two sliders 7 to realize the conversion of sliding and rotation between the slider and the rotating block; when the push rod is stretched or contracted, one of the sliders is driven away from or close to the middle of the slide rail, thereby driving the rotating block to rotate, thereby Drive the other slider linkage to realize the synchronous reverse or opposite movement of the two sliders. In this embodiment, the power unit is an electric push rod or a hydraulic cylinder.

In this embodiment, the connection point between the connecting rod and the slider is located at the symmetrical center of the slider. In order to prevent the slider from moving to the dead point of the mechanism and cause the mechanism to "top dead", a limit block can be set on the slide rail to limit the maximum outward displacement of the slider so that the two connecting rods will not have a common line situation. In other embodiments of the present invention, the connection points of the two connecting rods and the corresponding sliders can also be arranged on both sides deviated from the center of symmetry, so that when the slider moves from the outermost to the middle of the slide rail, due to the Lateral force, without "top dead" situation.

The lifting support mechanism includes a hydraulic lifting top 13 and a support base 14, the hydraulic lifting top 13 is installed on the lower part of the front end of the fixed support 1, and the support base 14 is installed on the hydraulic lifting top 13, so as to rise or fall under its driving , to transport the reducer to the set height.

The working principle of the present invention is as follows: firstly, the reducer is placed on the support base, and the reducer to be installed is raised to a preset position by controlling the hydraulic lifting top at the lower end of the support base. Then the clamping drive device controls the clamping block to clamp to the reducer synchronously. When the clamping force of the clamping block reaches the preset clamping force, it is locked, and the fixing bolts set on the mounting hole of the reducer and the clamping block are selected. The reducer fixing plate matched with the hole is used to fix the reducer by bolts. Then, the support seat is lowered to the initial position through the hydraulic lifting top, and the installation of the reducer is completed. The disassembly process is opposite to the installation process. Different types of reducer fixing plates can be used to install coaxial reducers of different dimensions. The installation and disassembly process is easy to operate, saves installation time, and improves the installation efficiency and installation accuracy of the whole machine. After the installation of the reducer is completed, the power input source and detection source of the test bench are respectively connected to the input and output shafts of the reducer, and the comprehensive performance experiment of the reducer can be realized after debugging and verification.

The above is only a preferred embodiment of the present invention, and does not limit the technical scope of the present invention in any way, so any changes or modifications made according to the claims of the present invention and the description should all be covered by the patent of the present invention. within range.

Claims (4)

1. A speed reducer fixing device for a speed reducer comprehensive experiment table is characterized by comprising a fixing support, a speed reducer clamping mechanism, a clamping driving device and a lifting supporting mechanism, wherein the speed reducer clamping mechanism comprises two clamping blocks symmetrically arranged on the left side and the right side in the fixing support, the two clamping blocks are arranged on the clamping driving device and driven by the clamping driving device to synchronously move in opposite directions or in reverse directions so as to clamp or release the speed reducer, and the lifting supporting mechanism is arranged on the lower portion of the fixing support so as to lift the speed reducer to a set height and assist in installation of the speed reducer;

the clamping blocks are of a V-shaped structure, so that a rhombic clamping space is formed by synchronous opposite movement of the two clamping blocks to clamp the speed reducer;

the middle part of the outer side of each clamping block is connected with a guide rod, the left side and the right side of the fixed support are respectively provided with a guide through hole which is matched with the guide rods, and the guide rods of the two clamping blocks respectively penetrate through the corresponding guide through holes and are in sliding fit with the guide through holes so as to further guide the movement of the clamping blocks and ensure the centering property in the installation process of the speed reducer;

the clamping driving device consists of two driving mechanisms which are symmetrically arranged at the upper side and the lower side in the fixed support, each driving mechanism comprises a slide rail, two slide blocks, a power unit and a rotating block, the two slide blocks are arranged on the slide rails, one ends of the two clamping blocks are respectively arranged on the corresponding slide blocks, a fixed seat is fixedly arranged in the middle of each slide rail, the body of each power unit is arranged at the lower part of one slide block, the front end of a push rod of each power unit is fixedly connected with the lower part of the fixed seat, the rotating block is rotatably connected to the upper part of the fixed seat, and the two outer side parts of the rotating block are respectively hinged with the two slide blocks through a connecting rod so as to realize the conversion of sliding and rotating between the slide blocks and the rotating block; when the push rod extends or contracts, one of the slide blocks is driven to be far away from or close to the middle part of the slide rail, so that the rotating block is driven to rotate, the other slide block is driven to be linked, and the two slide blocks synchronously move in the opposite directions or move in the opposite directions;

the fixture block sets the reduction gear fixed plate of multiple different shapes, specification, different positions distribute the fixing bolt hole of multiple different models on the fixture block, after the fixture block presss from both sides tight reduction gear, through the reduction gear fixed plate of corresponding shape, specification of corresponding fixing bolt installation, another lateral part of reduction gear fixed plate and reduction gear fixed connection to the reduction gear of the fixed not unidimensional structure of adaptation prevents that the reduction gear from taking place the rotation.

2. The reducer fixing device for the reducer comprehensive experiment table according to claim 1, wherein the fixing bracket is mounted on the reducer comprehensive experiment table.

3. The reducer fixing device for the reducer comprehensive experiment table according to claim 1, wherein the power unit is an electric push rod or a hydraulic cylinder.

4. The reducer fixing device for the reducer comprehensive experiment table according to claim 1, wherein the lifting support mechanism comprises a hydraulic lifting top and a support base, the hydraulic lifting top is mounted at the lower part of the front end of the fixing support, and the support base is mounted on the hydraulic lifting top to be driven by the hydraulic lifting top to ascend or descend so as to convey the reducer to a set height.

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