Motor torque detection device

Abstract

The utility model discloses a motor torque detection device, which comprises a rack, a torque sensor and a motor positioning structure are respectively arranged on two opposite sides of the mounting surface of the rack, the motor positioning structure comprises a hydraulic push rod group, and the input end of the hydraulic push rod group is inserted in a liquid pipe group in a sliding manner. The liquid pipe set is communicated with liquid channels formed in the positioning frame body through hoses, positioning piston rods are arranged in the liquid channels in a sliding mode, a branch liquid box is integrally arranged at the end, corresponding to a motor shaft, of the positioning frame body, the branch liquid box is communicated with the liquid channels, and shaft body piston rods are arranged in all liquid paths of the branch liquid box in a sliding and limiting mode; according to the utility model, through the arrangement of the motor positioning structure, the positioning piston rods can be pushed out at equal intervals under the action of the hydraulic push rod group in combination with the pressure action of liquid, and the pushing and positioning at the peripheral side of the motor and the centering support and centering limit of the motor shaft are completed.

Description

Technical Field

[0001] The utility model relates to the technical field of motor detection, in particular to a motor torque detection device. Background Art

[0002] An electric motor, commonly known as a motor, refers to an electromagnetic device that converts or transmits electrical energy based on the law of electromagnetic induction. Its main function is to generate driving torque, serving as a power source for electrical appliances or various machines, and driving the operation of electrical appliances or various machines. The development of motor testing technology is closely related to the development of the motor industry. Motor testing is an important link in the comprehensive evaluation of motor assembly quality and technical performance, and is an important process in motor manufacturing and production.

[0003] Current motors need to have their output torque tested during the production process, but conventional motor torque testing equipment does not have the function of quickly positioning the motor body. It needs to be positioned with a special fixture before push testing can be performed, and the efficiency is relatively low. At the same time, current testing equipment does not have a structure for aligning and stabilizing the axis, because the motor mounting frame and the connection end of the torque sensor cannot be guaranteed to be in a facing state. Therefore, sometimes the motor shaft will have offset friction after being connected to the torque sensor, which will cause wear on the shaft.

[0004] Therefore, the present invention provides a motor torque detection device to solve the above problems. Utility Model Content

[0005] In view of the deficiencies in the prior art, the present invention provides a motor torque detection device to solve the above problems.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: A motor torque detection device includes a stand, wherein a torque sensor and a motor positioning structure are respectively installed on two opposite sides of the stand mounting surface;

[0007] The motor positioning structure includes a hydraulic push rod group, the input end of the hydraulic push rod group is slidably inserted into the interior of the liquid pipe group, the liquid pipe group is connected with the liquid channel opened inside the positioning frame through a hose, and a positioning piston rod is slidably provided inside the liquid channel. The positioning frame is integrally provided with a branch liquid tank at one end corresponding to the motor shaft, and the branch liquid tank is connected to the liquid channel, and each liquid channel of the branch liquid tank is slidably limited and provided with a shaft piston rod.

[0008] Preferably, the motor positioning structure includes a positioning frame, which is connected to the upper surface of the sliding mounting frame by bolts, and the bottom surface of the sliding mounting frame is integrally provided with a raised limiting slide corresponding to the slide groove on the surface of the platform, and is slidably connected to the surface of the platform through the slide, and the hydraulic push rod group is fixedly arranged on the surface of the platform between the sliding mounting frame.

[0009] Preferably, the liquid channels are opened in an annular array along the shaft core inside the positioning frame, and a through branch hole is opened on the path of each liquid channel toward the shaft core, and the positioning piston rod is slidably arranged inside each branch hole.

[0010] Preferably, the core-facing end of the positioning piston rod is made of a colloid material, and a spring is sleeved on the rod body, and sliding is limited by the spring.

[0011] Preferably, a spring is also sleeved on the rod body of the shaft piston rod, and sliding is limited by the spring.

[0012] Preferably, the core-facing end of the shaft piston rod is configured as a rolling ball.

[0013] Beneficial effects

[0014] The present invention provides a motor torque detection device. Compared with the prior art, it has the following advantages:

[0015] (1) The motor torque detection device, through the arrangement of the positioning frame, the liquid channel, the hydraulic push rod group, the liquid pipe group, the positioning piston rod and the spring, can, after the motor is placed, under the action of the hydraulic push rod group, push the liquid inside the liquid pipe group into the inside of the liquid channel before pushing the sliding mounting frame, and combine the action of the liquid pressure to achieve the equidistant pushing of the positioning piston rod, completing the pushing positioning on the side of the motor. Compared with the current positioning components, this positioning method is in the same process as the docking, which not only quickly and efficiently positions the motor, but also greatly reduces the time required for detection, thereby improving the efficiency of detection.

[0016] (2) The motor torque detection device, through the arrangement of the positioning frame, the liquid channel, the hydraulic push rod group, the liquid pipe group, the branch liquid tank and the shaft piston rod, can utilize the effect of hydraulic pressure to perform equidistant pushing of the shaft piston rod, so that it is equidistantly pushed on the circumference of the motor shaft, completing the centering support and centering limitation of the motor shaft, thereby ensuring that the connecting end of the motor shaft and the torque sensor are on the same axis, avoiding wear between the shafts. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a three-dimensional diagram of the external structure of the utility model;

[0018] Figure 2 This is the structural front view of the utility model;

[0019] Figure 3 It is a structural side view of the utility model;

[0020] Figure 4 It is a top view of the structure of the present utility model.

[0021] In the figure: 1. Test stand; 2. Torque sensor; 3. Motor positioning structure; 301. Positioning frame; 3011. Liquid channel; 302. Sliding mounting frame; 303. Hydraulic push rod group; 304. Liquid pipe group; 305. Positioning piston rod; 3051. Spring; 306. Branch liquid tank; 307. Axis piston rod. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] Example 1:

[0024] See also Figure 1-4 A motor torque detection device includes a stand 1, a torque sensor 2 and a motor positioning structure 3 are respectively installed on two opposite sides of the stand 1 mounting surface.

[0025] The motor positioning structure 3 includes a positioning frame 301, which is connected to the upper surface of the sliding mounting frame 302 by bolts. The bottom surface of the sliding mounting frame 302 is integrally provided with a raised limiting slide corresponding to the slide groove on the surface of the platform 1, and is slidably connected to the surface of the platform 1 through the slide. A hydraulic push rod group 303 is fixedly provided on the surface of the platform 1 between the sliding mounting frame 302. The input end of the hydraulic push rod group 303 is slidably inserted into the interior of the liquid pipe group 304, and the insertion end is sealed by a sealing ring. The liquid pipe group 304 consists of two main liquid storage pipes and a middle branch pipe, wherein the two main liquid storage pipes are fixedly provided An interface is provided on the surface of the arm plate between the two slides of the sliding mounting frame 302, and the surface of the middle branch pipe is fixedly connected to the hose through the interface, and the other end of the hose is fixedly connected to the input end of the liquid channel 3011 opened inside the positioning frame 301. The liquid channel 3011 is opened along the annular array of the axis core inside the positioning frame 301, and each liquid channel 3011 is provided with a through branch hole toward the axis core on the path, and a positioning piston rod 305 is slidably provided inside each branch hole. The core-facing end of the positioning piston rod 305 is made of colloid material, and a spring 3051 is sleeved on the rod body, and sliding is limited by the spring 3051.

[0026] During operation, the motor to be tested is first pushed into the interior of the positioning frame 301 to ensure that the motor shaft is stably inserted into the center hole of the branch liquid tank 306, and then the hydraulic push rod group 303 is controlled to push the output rod to slide along the inner wall of the liquid pipe group 304, and squeeze the liquid inside the liquid pipe group 304 through the pipeline into the interior of the liquid channel 3011 during the sliding process, and push the positioning piston rod 305 to slide along various pipelines, and compress the spring 3051 during the sliding process until the rubber head end of the positioning piston rod 305 pushes on the side of the motor to center and fix the motor, and then the hydraulic push rod group 303 will push the liquid pipe group 304 and the sliding mounting frame 302, so that the sliding mounting frame 302 moves along the slide groove on the surface of the platform 1 toward the direction of the torque sensor 2 until the motor shaft docks with the detection end of the torque sensor 2, and then the motor can be tested.

[0027] To sum up, through the arrangement of the positioning frame 301, the liquid channel 3011, the hydraulic push rod group 303, the liquid pipe group 304, the positioning piston rod 305 and the spring 3051, after the motor is placed, under the action of the hydraulic push rod group 303, the hydraulic push rod group 303 can push the liquid inside the liquid pipe group 304 into the liquid channel 3011 before pushing the sliding mounting frame 302, and combined with the action of the liquid pressure, the positioning piston rod 305 can be pushed out equidistantly to complete the pushing positioning on the side of the motor. Compared with the current positioning components, this positioning method is in the same process as the docking, which not only quickly and efficiently positions the motor, but also greatly reduces the time required for detection and improves the efficiency of detection.

[0028] Example 2:

[0029] See also Figure 1-4 This embodiment provides a technical solution based on the first embodiment: a branch liquid tank 306 is integrally provided at one end of the positioning frame 301 corresponding to the motor shaft, and each branch pipe of the branch liquid tank 306 is provided corresponding to the liquid channel 3011 and is connected to the liquid channel 3011. Each liquid channel of the branch liquid tank 306 is slidingly limited by a spring 3051 and is provided with a shaft piston rod 307, and the core end of the shaft piston rod 307 is provided with a rolling ball.

[0030] During operation, the liquid entering the branch liquid tank 306 pushes the shaft piston rod 307, causing it to slide toward the core along the branch liquid tank 306 while compressing the spring 3051, until the ball end of the shaft piston rod 307 comes into active contact with the output shaft of the motor.

[0031] In summary, by arranging the positioning frame 301, the liquid channel 3011, the hydraulic push rod group 303, the liquid pipe group 304, the branch liquid tank 306 and the shaft piston rod 307, the effect of the hydraulic pressure can be utilized to perform equidistant pushing of the shaft piston rod 307, so that it is equidistantly pushed on the circumference of the motor shaft, completing the centering support and centering limitation of the motor shaft, thereby ensuring that the connecting end of the motor shaft and the torque sensor 2 are on the same axis, avoiding wear between the shafts.

[0032] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0033] Working principle: When working, first push the motor to be tested into the interior of the positioning frame 301 to ensure that the motor shaft is stably inserted into the center hole of the branch liquid tank 306, and then control the hydraulic push rod group 303 to push the output rod to slide along the inner wall of the liquid pipe group 304, and in the sliding process, squeeze the liquid inside the liquid pipe group 304 through the pipeline into the interior of the liquid channel 3011, and the liquid entering the liquid channel 3011 will also enter the interior of the branch liquid tank 306, and push the positioning piston rod 305 and the shaft piston rod 307 to make them slide along the inner wall of the liquid pipe group 304. The pipeline slides and compresses the spring 3051 during the sliding process until the rubber head end of the positioning piston rod 305 pushes on the peripheral side of the motor and the ball end of the shaft piston rod 307 is in active contact with the output shaft of the motor, thereby realizing the centering and positioning of the motor and the machine shaft. Then the hydraulic push rod group 303 will push the liquid pipe group 304 and the sliding mounting frame 302, so that the sliding mounting frame 302 moves along the slide groove on the surface of the stand 1 toward the direction of the torque sensor 2 until the machine shaft of the motor is docked with the detection end of the torque sensor 2, and then the motor can be tested.

[0034] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0035] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A motor torque detection device, comprising a stand (1), wherein a torque sensor (2) and a motor positioning structure (3) are respectively installed on two opposite sides of the mounting surface of the stand (1), and characterized in that: The motor positioning structure (3) comprises a hydraulic push rod group (303), the input end of the hydraulic push rod group (303) is slidably inserted into the interior of a liquid pipe group (304), the liquid pipe group (304) is connected to a liquid channel (3011) opened inside a positioning frame (301) through a hose, a positioning piston rod (305) is slidably provided inside each of the liquid channels (3011), a branch liquid tank (306) is integrally provided at one end of the positioning frame (301) corresponding to the motor shaft, and the branch liquid tank (306) is connected to the liquid channel (3011), and a shaft piston rod (307) is slidably provided inside each liquid channel of the branch liquid tank (306).

2. The motor torque detection device according to claim 1, characterized in that: The motor positioning structure (3) includes a positioning frame (301), the positioning frame (301) is connected to the upper surface of the sliding mounting frame (302) by bolts, the bottom surface of the sliding mounting frame (302) is provided with a protruding limiting slide in a sliding groove corresponding to the surface of the platform (1), and is slidably connected to the surface of the platform (1) by the slide, and the hydraulic push rod group (303) is fixedly arranged on the surface of the platform (1) between the sliding mounting frame (302).

3. The motor torque detection device according to claim 1, characterized in that: The liquid channels (3011) are opened in a circular array along the axis core inside the positioning frame (301), and each liquid channel (3011) is provided with a through branch hole toward the axis core, and the positioning piston rod (305) is slidably arranged inside each branch hole.

4. The motor torque detection device according to claim 1, characterized in that: The core-facing end of the positioning piston rod (305) is made of a colloid material, and a spring (3051) is sleeved on the rod body, and sliding is limited by the spring (3051).

5. The motor torque detection device according to claim 1, characterized in that: The rod body of the axial piston rod (307) is also sleeved with a spring (3051), and sliding is limited by the spring (3051).

6. The motor torque detection device according to claim 1, characterized in that: The core-facing end of the shaft piston rod (307) is configured as a rolling ball.

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