A fixing device for motor rotor detection

Abstract

This utility model relates to the field of motor rotor testing technology, specifically disclosing a fixing device for motor rotor testing, including a base, two clamping parts, and an adjusting part. Both clamping parts are mounted on the base, and the adjusting part is installed inside the base. Each clamping part includes a fixing component and a reinforcing component. The fixing component includes a base block positioned above the base, with the bottom of the left-side base block fixedly connected to the base. A bracket is mounted on the top of the base block, and two limiting rods are slidably connected to the inner wall of the bracket. A stop block is fixedly connected to the bottom of the two limiting rods. The reinforcing component includes a pressing block slidably connected to the outer wall of the two limiting rods. A spring is fitted onto the outer wall of each limiting rod, its top fixedly connected to the pressing block, and its bottom fixedly connected to the stop block. This utility model can convert the large instantaneous clamping force generated during clamping into a gradually increasing elastic force, ensuring not only clamping stability but also preventing damage to the object and guaranteeing stability during subsequent testing.

Description

Technical Field

[0001] This utility model belongs to the field of motor rotor testing technology, and in particular relates to a fixing device for motor rotor testing. Background Technology

[0002] As the core of power, electric motors are widely used in industries such as industrial manufacturing and new energy. Their performance directly affects the operating efficiency of equipment. As a key component of the motor, the rotor undertakes the functions of energy conversion and transmission. Its structural precision and surface quality are crucial to the stability of the motor. To ensure rotor quality, defects need to be detected through professional testing. However, during the testing process, the rotor is prone to displacement and vibration due to external forces or its own weight, which can lead to distorted test data. Therefore, a fixing device for motor rotor testing has emerged. By precisely clamping and positioning the rotor, it ensures stability and coaxiality during testing and is a key auxiliary device for improving testing accuracy.

[0003] However, existing fixing devices often use rigid clamping to fix the items to be tested. Rigid clamping will exert a large instantaneous force directly on the surface of the item, causing damage to the surface and affecting subsequent testing. Utility Model Content

[0004] The purpose of this utility model is to provide a fixing device for testing motor rotors. By setting up a clamping part, it solves the problem that existing fixing devices often use rigid clamping to fix the test items during use. Rigid clamping will have a large instantaneous force directly applied to the surface of the item, causing damage to the surface of the item and thus affecting subsequent testing.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution: This utility model relates to a fixing device for testing motor rotors, comprising a base and further comprising: two clamping parts, both of which are disposed on the base; and an adjusting part installed inside the base. Each clamping part includes a fixing component and a reinforcing component. The fixing component is located above the base, and the reinforcing component is disposed on the base. The fixing component includes a base block disposed above the base. The bottom of the base block located on the left side is fixedly connected to the base. A bracket is provided on the top of the base block. Two limiting rods are slidably connected to the inner wall of the bracket. A stop block is fixedly connected to the bottom of the two limiting rods. A telescopic component is disposed inside the base block. The two fixing components are mirror images of each other. The base block is a block with a V-shaped groove on the top, and its depth is shallow, less than the diameter of the motor rotor. The two limiting rods are mirror images of each other. The reinforcement component includes a compression block slidably connected to the outer walls of two limiting rods. A spring is sleeved on the outer walls of both limiting rods. The tops of the two springs are fixedly connected to the compression block, and the bottoms of the two springs are fixedly connected to the abutment block. A rotating component is provided inside the bracket. The two springs are mirror images of each other.

[0006] Furthermore, the telescopic component includes a telescopic rod fixedly connected to the inner wall of one side of the base block, the top of the telescopic rod being fixedly connected to the bracket, and an electric telescopic rod fixedly connected to the inner wall of the other side of the base block, the top of the electric telescopic rod being fixedly connected to the bracket; wherein, the telescopic rod penetrates through the base block, and the electric telescopic rod penetrates through the base block.

[0007] Furthermore, the rotating component includes a threaded rod rotatably connected to the top of the extrusion block. A handle is fixedly connected to the outer wall of the top end of the threaded rod. The threaded rod passes through the bracket, and the outer wall of the threaded rod is threadedly connected to the bracket. The handle is located above the bracket. By rotating the handle, the threaded rod rotates, causing the extrusion block to slide along the limiting rod and compress the spring, thereby enhancing the clamping stability of the item using the spring force.

[0008] Furthermore, the adjustment part includes a sliding component and a locking component, the sliding component being located inside the base and the locking component being disposed on the front side of the base; wherein, the front side of the sliding component extends outside the base and is connected to the locking component.

[0009] Furthermore, the sliding assembly includes a rotating shaft rotatably connected to the inner wall of the base, a slider slidably connected to the inner wall of the base, the top of the slider being fixedly connected to the bottom of the right-side base block, and a transmission component disposed within the base; wherein the front side of the rotating shaft extends outward from the base. Rotating the rotating shaft extending outward from the base, through the meshing of gears and racks, drives the slider and the right-side base block to slide, thereby adjusting the distance between the two clamping parts.

[0010] Furthermore, the transmission component includes a gear fixedly connected to the outer wall of the rotating shaft, a rack slidably connected to the inner wall of the base, the top of the rack being fixedly connected to the slider, and the gear meshing with the rack; wherein the rack is located above the gear.

[0011] Furthermore, the locking assembly includes a locking block 1 fixedly connected to the front side of the base, a handle 2 provided on the inner wall of the locking block 1, the outer wall of the handle 2 being slidably connected to the rotating shaft, and an elastic element provided inside the locking block 1; wherein, the locking block 1 is a hollow annular block, and the inner edge of the locking block 1 away from the base is evenly provided with locking teeth; the outer wall of the handle 2 being slidably connected to the rotating shaft is a hexagonal prism structure, and a hexagonal block is provided at the end to limit and prevent the handle 2 from slipping off, and the inner wall of the rotating shaft is provided with a hexagonal slot that matches the outer wall of the handle 2.

[0012] Furthermore, the elastic element includes a second annular locking block disposed within the first locking block. The front side of the second annular locking block has locking teeth that match those of the first locking block. A second spring is fixedly connected to the rear side of the second locking block, and the rear side of the second spring abuts against the front sidewall of the base. The inner wall of the second locking block is fixedly connected to the second handle. When the locking teeth on the front side of the second locking block match and engage with the locking teeth on the inner edge of the first locking block, the second locking block is locked by the first locking block. When the front side of the second locking block is not engaged with the first locking block, the second locking block moves with the second handle. Pressing the second handle disengages the second locking block from the first locking block to release the lock and adjust the spacing. Releasing the handle pushes the second locking block against the first locking block, thus limiting and fixing the rotating shaft.

[0013] This utility model has the following beneficial effects: 1. By setting up a clamping part, the item to be tested is placed on the V-shaped groove of the two bottom blocks to achieve centered positioning. Activating the electric telescopic rod causes the bracket to move downwards with the help of the telescopic rod. The limiting rod drives the stop block to press against the item. The movement of the stop block compresses the spring to generate elastic force. After closing the electric telescopic rod, turning the handle causes the threaded rod to rotate, causing the squeezing block to move downwards along the limiting rod, further compressing the spring to enhance the elastic force, thereby firmly fixing the item. This method can convert the large instantaneous clamping force generated during clamping into a gradually increasing elastic force, which not only ensures the stability of clamping but also avoids damage to the item, thus ensuring the stability of subsequent testing.

[0014] 2. By setting the adjustment part, pressing the handle two causes the locking block two to move closer to the base and compress the spring two. At this time, the locking block two disengages from the locking block one. Rotating the handle two drives the gear to rotate through the shaft. The gear meshes with the rack, thereby causing the slider and the right-side clamping part to slide, adjusting the distance between the two clamping parts. After adjustment, releasing the handle two causes the spring force of the spring two to reset the locking block two and abut against the locking block one, completing the locking to prevent the shaft from rotating on its own. This allows the distance between the two clamping parts to be adjusted to accommodate items of different sizes, thereby increasing the practicality of the device.

[0015] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2This is a partial cross-sectional view of the clamping part of this utility model; Figure 3 This is a schematic diagram of the overall structure of the slider of this utility model; Figure 4 This utility model Figure 3 A magnified structural diagram of A in the middle; Figure 5 This is a partial cross-sectional view of the locking component of this utility model; Figure 6 This is an exploded structural diagram of the locking component of this utility model.

[0018] The attached diagram lists the components represented by each number as follows: 101. Base; 2. Clamping part; 21. Fixing component; 211. Base block; 212. Telescopic rod; 213. Electric telescopic rod; 214. Bracket; 215. Limiting rod; 216. Abutment block; 22. Reinforcing component; 221. Pressing block; 222. Spring one; 223. Threaded rod; 224. Handle one; 3. Adjusting part; 31. Sliding component; 311. Rotating shaft; 312. Gear; 313. Rack; 314. Slider; 32. Locking component; 321. Locking block one; 322. Locking block two; 323. Spring two; 324. Handle two. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figure 1-6 As shown, this utility model is a fixing device for testing motor rotor, including a base 101, and further including: a clamping part 2, two clamping parts 2 are provided, both clamping parts 2 are provided on the base 101; and an adjusting part 3, the adjusting part 3 is installed in the base 101.

[0021] The clamping part 2 includes a fixing component 21 and a reinforcing component 22. The fixing component 21 is located above the base 101, and the reinforcing component 22 is mounted on the base 101. The fixing component 21 includes a bottom block 211 mounted above the base 101. The bottom of the bottom block 211 located on the left side is fixedly connected to the base 101. A bracket 214 is mounted on the top of the bottom block 211. Two limiting rods 215 are slidably connected to the inner wall of the bracket 214. A stop block 216 is fixedly connected to the bottom of the two limiting rods 215. A telescopic component is mounted inside the bottom block 211. The two fixing components 21 are mirror images of each other. The bottom block 211 is a block with a V-shaped groove on the top and its depth is shallow, smaller than the diameter of the motor rotor. The two limiting rods 215 are mirror images of each other. The telescopic component includes a telescopic rod 212 fixedly connected to the inner wall of one side of the base block 211, the top of the telescopic rod 212 being fixedly connected to the bracket 214, and an electric telescopic rod 213 fixedly connected to the inner wall of the other side of the base block 211, the top of the electric telescopic rod 213 being fixedly connected to the bracket 214; wherein, the telescopic rod 212 passes through the base block 211, and the electric telescopic rod 213 passes through the base block 211; The reinforcing component 22 includes a compression block 221 slidably connected to the outer wall of two limiting rods 215. A spring 222 is sleeved on the outer wall of each of the two limiting rods 215. The top of each spring 222 is fixedly connected to the compression block 221, and the bottom of each spring 222 is fixedly connected to the abutment block 216. A rotating component is provided inside the bracket 214. The two springs 222 are mirror images of each other. The rotating component includes a threaded rod 223 rotatably connected to the top of the extrusion block 221. A handle 224 is fixedly connected to the outer wall of the top end of the threaded rod 223. The threaded rod 223 passes through the bracket 214, and the outer wall of the threaded rod 223 is threadedly connected to the bracket 214. The handle 224 is located above the bracket 214.

[0022] By setting the clamping part 2, the large instantaneous clamping force generated during clamping can be converted into a gradually increasing elastic force, which not only ensures the stability of clamping, but also avoids damage to the item, thereby ensuring the stability of subsequent testing.

[0023] The adjustment unit 3 includes a sliding component 31 and a locking component 32. The sliding component 31 is located inside the base 101, and the locking component 32 is located on the front side of the base 101. The front side of the sliding component 31 extends to the outside of the base 101 and is connected to the locking component 32. The sliding component 31 includes a rotating shaft 311 rotatably connected to the inner wall of the base 101. A slider 314 is slidably connected to the inner wall of the base 101. The top of the slider 314 is fixedly connected to the bottom of the bottom block 211 located on the right side. A transmission component is provided inside the base 101. The front side of the rotating shaft 311 extends to the outside of the base 101. The transmission component includes a gear 312 fixedly connected to the outer wall of the rotating shaft 311, and a rack 313 slidably connected to the inner wall of the base 101. The top of the rack 313 is fixedly connected to the slider 314, and the gear 312 meshes with the rack 313. The rack 313 is located above the gear 312. The locking assembly 32 includes a locking block 321 fixedly connected to the front side of the base 101. The inner wall of the locking block 321 is provided with a handle 324. The outer wall of the handle 324 is slidably connected to the rotating shaft 311. An elastic element is provided inside the locking block 321. The locking block 321 is a hollow annular block. The inner edge of the locking block 321 away from the base 101 is evenly provided with locking teeth. The outer wall of the handle 324, which is slidably connected to the rotating shaft 311, is a hexagonal prism structure. A hexagonal block is provided at the end to limit the handle 324 and prevent it from slipping. The inner wall of the rotating shaft 311 is provided with a hexagonal slot that matches the outer wall of the handle 324. The elastic element includes an annular locking block 322 disposed within locking block 321. The front side of the annular locking block 322 is provided with locking teeth that match locking block 321. A spring 323 is fixedly connected to the rear side of locking block 322. The rear side of spring 323 abuts against the front side wall of base 101. The inner wall of locking block 322 is fixedly connected to handle 324. When the locking teeth on the front side of locking block 322 match and engage with the locking teeth on the inner edge of locking block 321, locking block 322 will be locked by locking block 321. When the front side of locking block 322 is not engaged with locking block 321, locking block 322 will move with handle 324.

[0024] By providing the adjustment part 3, the distance between the two clamping parts 2 can be adjusted to accommodate items of different sizes, thereby increasing the practicality of the device.

[0025] A specific application of this embodiment is as follows: In use, the item to be tested can be placed on the two base blocks 211. The item to be tested will be centered and positioned by the V-shaped groove design on the top of the base block 211. Then, the two electric telescopic rods 213 can be activated, which, together with the two telescopic rods 212, will drive the two supports 214 to move downward. At the same time, the limiting rod 215 will drive the abutment block 216 to press down against the item to be tested. At this time, the abutment block 216 and the limiting rod 215 fixedly connected to it stop moving. As the support 214 continues to move downward, it slides between itself and the limiting rod 215. Because the squeezing block 221 is slidably connected to the limiting rod 215 and is located at the bottom of the support 214, the squeezing block 221 will compress the spring 222 to generate elastic force. At this time, the electric telescopic rod 213 can be turned off, and then the handle 224 can be turned to drive the threaded rod 223 to rotate. When the threaded rod 223 rotates, it will drive the squeezing block 221 to continue to move downward under the action of the limit rod 215, thereby further squeezing the spring 222 and generating greater elastic force, thereby fixing the detection item on the two bottom blocks 211.

[0026] When it is necessary to detect items of different lengths, the handle 324 can be pressed to slide within the rotating shaft 311, causing the locking block 322 to move closer to the base 101, thereby compressing the spring 323 and generating elastic force. At this time, the front side of the locking block 322 is not in contact with the locking block 321. Then, the handle 324 can be rotated to rotate the rotating shaft 311. When the rotating shaft 311 rotates, it will drive the gear 312 to rotate, thereby driving the slider 314 to slide within the base 101 through the rack 313. When the slider 314 slides, it will drive the clamping part 2 on the right side to move towards the base 101. Slide the seat 101 to change the distance between the two clamping parts 2. After the adjustment is completed, the handle 2 324 can be released. At this time, under the action of the spring 2 323, the handle 2 324 will be reset through the locking block 2 322. At this time, the locking block 2 322 will also re-abut against the locking block 1 321 under the action of the spring 2 323, thereby completing the limit (the adjustment of this device is stepped adjustment, each locking tooth is a level, and the distance between each locking tooth is small. The distance between a single locking tooth is not enough to affect the overall distance adjustment), to prevent the rotating shaft 311 from rotating.

[0027] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0028] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A fixing device for testing motor rotor, comprising a base (101), characterized in that, Also includes: Clamping part (2), two clamping parts (2) are provided, and both clamping parts (2) are provided on the base (101); Adjustment part (3), said adjustment part (3) is installed inside the base (101); The clamping part (2) includes a fixing component (21) and a reinforcing component (22), wherein the fixing component (21) is located above the base (101); The reinforcement component (22) is mounted on the base (101); The fixing component (21) includes a bottom block (211) disposed above the base (101). The bottom of the bottom block (211) located on the left side is fixedly connected to the base (101). A bracket (214) is provided on the top of the bottom block (211). Two limiting rods (215) are slidably connected to the inner wall of the bracket (214). A stop block (216) is fixedly connected to the bottom of the two limiting rods (215). A telescopic component is provided inside the bottom block (211). The two fixing components (21) are mirror images of each other. The bottom block (211) is a block with a V-shaped groove on the top. The two limiting rods (215) are mirror images of each other. The reinforcing component (22) includes a compression block (221) slidably connected to the outer wall of two limiting rods (215). A spring (222) is sleeved on the outer wall of each of the two limiting rods (215). The top of each spring (222) is fixedly connected to the compression block (221), and the bottom of each spring (222) is fixedly connected to the abutment block (216). A rotating component is provided inside the bracket (214). The two springs (222) are mirror images of each other.

2. The fixing device for testing motor rotor according to claim 1, characterized in that, The telescopic component includes a telescopic rod (212) fixedly connected to the inner wall of one side of the base block (211), the top of the telescopic rod (212) being fixedly connected to the bracket (214), and an electric telescopic rod (213) fixedly connected to the inner wall of the other side of the base block (211), the top of the electric telescopic rod (213) being fixedly connected to the bracket (214). Among them, the telescopic rod (212) passes through the bottom block (211), and the electric telescopic rod (213) passes through the bottom block (211).

3. The fixing device for testing motor rotor according to claim 1, characterized in that, The rotating component includes a threaded rod (223) rotatably connected to the top of the extrusion block (221). A handle (224) is fixedly connected to the outer wall of the threaded rod (223). The threaded rod (223) passes through the bracket (214). The top outer wall of the threaded rod (223) is threadedly connected to the bracket (214). Among them, handle one (224) is located above bracket (214).

4. The fixing device for testing motor rotor according to claim 1, characterized in that, The adjustment part (3) includes a sliding component (31) and a locking component (32). The sliding component (31) is located inside the base (101); the locking component (32) is located on the front side of the base (101). The front side of the sliding component (31) extends to the outside of the base (101) and is connected to the locking component (32).

5. The fixing device for testing motor rotor according to claim 4, characterized in that, The sliding assembly (31) includes a rotating shaft (311) rotatably connected to the inner wall of the base (101), a slider (314) slidably connected to the inner wall of the base (101), the top of the slider (314) being fixedly connected to the bottom of the base block (211) located on the right side, and a transmission component being provided inside the base (101). The front side of the pivot (311) extends to the outside of the base (101).

6. The fixing device for testing motor rotor according to claim 5, characterized in that, The transmission component includes a gear (312) fixedly connected to the outer wall of the rotating shaft (311), and a rack (313) slidably connected to the inner wall of the base (101). The top of the rack (313) is fixedly connected to the slider (314), and the gear (312) meshes with the rack (313). The rack (313) is located above the gear (312).

7. A fixing device for testing motor rotors according to claim 5, characterized in that, The locking component (32) includes a locking block (321) fixedly connected to the front side of the base (101). The inner wall of the locking block (321) is provided with a handle (324). The outer wall of the handle (324) is slidably connected to the rotating shaft (311). An elastic element is provided inside the locking block (321). Among them, the first locking block (321) is a hollow ring block, and the inner edge of the first locking block (321) away from the base (101) is evenly provided with locking teeth; the outer wall of the second handle (324) which is slidably connected to the rotating shaft (311) is a hexagonal prism structure, and the end is provided with a hexagonal block to limit and prevent the second handle (324) from slipping off. The inner wall of the rotating shaft (311) is provided with a hexagonal slot that matches the outer wall of the second handle (324).

8. A fixing device for testing motor rotors according to claim 7, characterized in that, The elastic element includes a second locking block (322) disposed inside the first locking block (321). The front side of the second locking block (322) is provided with locking teeth that match the first locking block (321). The rear side of the second locking block (322) is fixedly connected to a second spring (323). The rear side of the second spring (323) abuts against the front side wall of the base (101). The inner wall of the second locking block (322) is fixedly connected to a second handle (324). When the front teeth of the second locking block (322) match and fit with the teeth on the inner edge of the first locking block (321), the second locking block (322) will be locked by the first locking block (321). When the front of the second locking block (322) does not fit with the first locking block (321), the second locking block (322) will move with the second handle (324).

Images