High-speed motor test fixing device

Abstract

The utility model provides a high-speed motor test fixing device, a first positioning part and a second positioning part are respectively provided with a base and a bearing surface, the base of the positioning part is detachably and fixedly connected with a bottom plate, and the bearing surface of the first positioning part and the bearing surface of the second positioning part are oppositely and symmetrically arranged and are reversely inclined at a fixed angle. The first threaded rod, the second threaded rod, the first guide rod and the second guide rod are arranged on the two sides of the positioning part respectively and are perpendicularly and fixedly arranged with the bottom plate, the threaded rods and the guide rods penetrate through the pressing plate respectively, the pressing plate is configured to be slidably connected with the guide rods in the extending direction of the axes of the guide rods, and locking pieces are further arranged on the threaded rods and used for locking and connecting the pressing plate and the threaded rods. And the bearing surfaces of the first positioning part and the second positioning part and the bottom surface of the pressing plate form an accommodating space which is used for placing and fixing the high-speed motor. The test fixing device provided by the utility model can adapt to and be compatible with high-speed motors with different diameters, and can guarantee an efficient and stable fixing function.

Description

Technical Field

[0001] The utility model belongs to the technical field of motor testing, and particularly relates to a fixing device for high-speed motor testing. Background Art

[0002] A high-speed motor refers to a motor with a rotational speed reaching 10,000 r / min or above. Due to its extremely high rotational speed, a high-speed motor has the characteristics of high power density, small volume, and light weight, and is suitable for application scenarios requiring high rotational speed and high efficiency, such as centrifugal compressors for air conditioners or refrigerators, hybrid vehicles, aerospace, precision machinery, medical equipment, high-speed tools, high-end pumps, and fans. Since the centrifugal force generated during the high-speed rotation of a high-speed motor is very large, during the production and testing process of a high-speed motor, if it is not fixed, its body is prone to deviation and collision, resulting in inaccurate test data and even causing other personal accidents.

[0003] However, under the existing technology, the fixing effect of conventional fixing devices is generally poor, and they cannot maintain a fixing function with high stability and safety. At the same time, for high-speed motors of various different models and specifications, conventional fixing devices cannot be directly adapted and compatible, resulting in an increase in test costs and a low test efficiency. Summary of the Utility Model

[0004] The utility model aims to provide a fixing device for high-speed motor testing to solve the technical problems that under the existing technology, conventional fixing devices cannot achieve an efficient and stable fixing function and cannot be adapted and compatible with the testing operations of high-speed motors of various different models and specifications.

[0005] To solve the above problems, the technical solution of the utility model is: a fixing device for high-speed motor testing, comprising: a bottom plate, a positioning part, a pressing plate, a screw rod, and a guide rod;

[0006] The positioning part includes a first positioning part and a second positioning part. The first positioning part and the second positioning part are respectively provided with a base and a supporting surface. The base of the positioning part is detachably and fixedly connected to the bottom plate. The supporting surfaces of the first positioning part and the second positioning part are symmetrically arranged facing each other and are inclined in opposite directions at a fixed angle;

[0007] The screw rod includes a first screw rod and a second screw rod. The first screw rod and the second screw rod are respectively arranged on both sides of the first positioning part and the second positioning part and are perpendicular to the bottom plate. The bottom end of the screw rod is fixedly connected to the bottom plate; the guide rod includes a first guide rod and a second guide rod. The first guide rod and the second guide rod are respectively arranged on both sides of the first positioning part and the second positioning part and are perpendicular to the bottom plate. The bottom end of the guide rod is fixedly connected to the bottom plate;

[0008] The pressing plate is arranged in the same vertical plane as the positioning part, the screw rod and the guide rod. The screw rod and the guide rod respectively penetrate through the pressing plate, and the pressing plate is configured to be slidably connected with the guide rod along the axial extension direction of the guide rod. A locking part is further arranged on the screw rod, and the locking part is used for locking and connecting the pressing plate and the screw rod, so as to limit the vertical arrangement height of the pressing plate.

[0009] The supporting surfaces of the first positioning part and the second positioning part and the bottom surface of the pressing plate form an accommodating space therebetween, and the accommodating space is used for placing and fixing a high-speed motor.

[0010] Preferably, a plurality of fixing holes are formed in the bottom plate, and fixing grooves are formed in the base of the positioning part. Bolts can penetrate through the fixing grooves and be threadedly connected with a fixing hole for fixing the positioning part and the bottom plate.

[0011] Preferably, a screw nut is fixedly arranged on the top surface of the bottom plate at the axially extending position of the screw rod, and the bottom end of the screw rod is threadedly connected and fixed with the screw nut.

[0012] Preferably, a fixing block is fixedly arranged on the top surface of the bottom plate at the axially extending position of the guide rod, and the bottom end of the guide rod is fixedly connected with the fixing block.

[0013] Preferably, the locking part includes a plurality of locking nuts which are rotationally threadedly connected with the screw rod, and the locking nuts are respectively arranged on one side of the top and the bottom of the screw rod penetrating through the pressing plate.

[0014] Preferably, a linear bearing is fixedly arranged on the top of the pressing plate. The linear bearing is coaxially arranged with the length extension direction of the guide rod, and the guide rod penetrates through the raceway of the linear bearing and is slidably connected with the linear bearing.

[0015] Preferably, a limiting part is arranged at the top of the guide rod, and the diameter of the limiting part is larger than the diameter of the raceway of the linear bearing.

[0016] Preferably, the length of the screw rod is greater than or equal to the length of the guide rod.

[0017] Preferably, the inclination angle of the supporting surface of the positioning part is defined as 40° to 50°.

[0018] Preferably, a handle is further arranged on the top of the pressing plate.

[0019] Due to the adoption of the above technical solutions, the utility model has the following advantages and positive effects compared with the prior art:

[0020] (1) In a high-speed motor testing and fixing device provided by the present utility model, there are a first positioning portion, a second positioning portion and a pressing plate. The supporting surfaces of the first positioning portion and the second positioning portion are symmetrically arranged facing each other and are inclined in opposite directions at a fixed angle. The supporting surfaces of the first positioning portion and the second positioning portion and the bottom surface of the pressing plate form an accommodating space. During the testing process of the high-speed motor, the high-speed motor is fixed in this accommodating space, and the side walls of the high-speed motor with a circular cross-section are respectively tangent to the supporting surfaces of the first positioning portion and the second positioning portion and the bottom surface of the pressing plate. The fixing device described in the present utility model forms a triangular force application structure for the high-speed motor, ensuring the testing stability of the high-speed motor.

[0021] (2) In a high-speed motor testing and fixing device provided by the present utility model, the first positioning portion and the second positioning portion are respectively detachably and fixedly connected to the bottom plate, that is, the distance between the first positioning portion and the second positioning portion can be quickly adjusted. At the same time, there is a screw rod and a guide rod passing through the pressing plate. The pressing plate can be adjusted in height along the length extension direction of the guide rod and can be locked in height by means of the screw rod, that is, the pressing plate can also quickly adjust its height position. Therefore, it can be seen that the accommodating volume of the accommodating space in the present utility model can be quickly adjusted according to the actual specifications of the high-speed motor, enabling the present utility model to have the function of testing and fixing high-speed motors of different model specifications, and improving the working efficiency of high-speed motor testing operations. Description of the Drawings

[0022] Figure 1 Schematic three-dimensional structure diagram of the high-speed motor testing and fixing device provided by the present utility model;

[0023] Figure 2 Front view of the high-speed motor testing and fixing device provided by the present utility model.

[0024] Description of the reference numerals: 1: bottom plate; 2: first positioning portion; 201: base; 202: supporting surface; 203: fixing groove; 3: second positioning portion; 4: first screw rod; 5: second screw rod; 6: first guide rod; 7: second guide rod; 8: pressing plate; 9: high-speed motor; 10: screw nut; 11: fixing block; 12: locking nut; 13: linear bearing; 14: limiting portion; 15: handle. Detailed Embodiment

[0025] The following further details a high-speed motor testing and fixing device proposed by the present utility model in conjunction with the drawings and specific embodiments. The advantages and features of the present utility model will be clearer according to the following description and the claims.

[0026] Refer to Figures 1 to 2 , this embodiment provides a high-speed motor testing and fixing device for realizing the testing and fixing functions of high-speed motors of different model specifications.

[0027] In this embodiment, the main structure of the high-speed motor test fixing device includes a bottom plate 1, a positioning part, a pressing plate 8, a screw rod, and a guide rod. The positioning part includes a first positioning part 2 and a second positioning part 3. The first positioning part 2 and the second positioning part 3 are respectively provided with a base 201 and a supporting surface 202. The base 201 of the positioning part can be detachably and fixedly connected to the bottom plate 1. At the same time, the supporting surfaces 202 of the first positioning part 2 and the second positioning part 3 are symmetrically arranged facing each other and are inclined in the opposite direction at a fixed angle. The supporting surfaces 202 of the first positioning part 2 and the second positioning part 3 are used to place the high-speed motor 9. Due to the adjustable position of the positioning part, the distance between the supporting surfaces 202 of the first positioning part 2 and the second positioning part 3 can be quickly adjusted.

[0028] The screw rod includes a first screw rod 4 and a second screw rod 5. The first screw rod 4 and the second screw rod 5 are respectively arranged on both sides of the first positioning part 2 and the second positioning part 3 and are perpendicular to the bottom plate 1. At the same time, the bottom ends of the first screw rod 4 and the second screw rod 5 are fixedly connected to the bottom plate 1. The guide rod includes a first guide rod 6 and a second guide rod 7. The first guide rod 6 and the second guide rod 7 are respectively arranged on both sides of the first positioning part 2 and the second positioning part 3 and are perpendicular to the bottom plate 1. At the same time, the bottom ends of the first guide rod 6 and the second guide rod 7 are fixedly connected to the bottom plate 1.

[0029] The positioning part, the screw rod, and the guide rod are all in the same vertical plane. The pressing plate 8 is arranged in the upper space of the positioning part, and 4 groups of vertically arranged holes are provided on the pressing plate 8. The first screw rod 4, the second screw rod 5, the first guide rod 6, and the second guide rod 7 respectively pass through the holes of the pressing plate 8. Among them, the pressing plate 8 is slidably connected to the guide rod along the axial extension direction of the guide rod, that is, the guide rod is used to limit the vertical movement track of the pressing plate 8. A locking part is also provided on the screw rod. Through the locking part, the pressing plate 8 and the screw rod can be locked and connected, thereby limiting the vertical arrangement height of the pressing plate 8 and making the pressing plate 8 maintain a fixed posture.

[0030] A receiving space is formed between the supporting surfaces 202 of the first positioning part 2 and the second positioning part 3 and the bottom surface of the pressing plate 8. The high-speed motor 9 is placed in this receiving space, and it is fixed by the clamping pressure of the supporting surfaces 202 of the first positioning part 2 and the second positioning part 3 and the bottom surface of the pressing plate 8.

[0031] In summary, this embodiment provides a fixing device for high-speed motor testing. The high-speed motor 9 is fixed by the clamping force of the positioning part and the pressing plate 8, so that it is not easy to generate offset and collision during high-speed rotation, improving the accuracy of test data and the safety of the test environment. Among them, the supporting surfaces 202 of the first positioning part 2 and the second positioning part 3 and the bottom surface of the pressing plate 8 are respectively tangent to the side wall of the high-speed motor 9, and a stable triangular structure is formed between the tangent points of the supporting surfaces 202 of the first positioning part 2 and the second positioning part 3 and the bottom surface of the pressing plate 8, thus ensuring the efficient and stable fixing function of this embodiment. At the same time, in this embodiment, the distance between the first positioning part 2 and the second positioning part 3 can be quickly adjusted, and the vertical height of the pressing plate 8 can also be quickly adjusted, that is, the volume of the accommodating space formed by the positioning part and the pressing plate 8 can be adjusted according to different usage requirements. Therefore, the test fixing device provided by this embodiment can be adapted and compatible with high-speed motors 9 of different models and specifications, meeting the positioning and placement requirements of motors with different diameters, and greatly reducing the hardware cost and test line complexity in high-speed motor testing operations.

[0032] Preferably, in one embodiment, a plurality of fixing holes are provided on the bottom plate 1, and internal threads are provided in the fixing holes. A fixing groove 203 is respectively provided on the bases 201 of the first positioning part 2 and the second positioning part 3. Another bolt can pass through the fixing groove 203 and be selectively threadedly connected to any one of the fixing holes. When the bolt is tightened, the position of the positioning part is fixed. By removing the bolt and moving the relative position of the positioning part on the bottom plate 1, the distance between the supporting surfaces 202 of the first positioning part 2 and the second positioning part 3 can be quickly adjusted.

[0033] Preferably, in one embodiment, screw nuts 10 are respectively fixed on the top surface of the bottom plate 1 at the axial extension positions of the first screw rod 4 and the second screw rod 5. The screw nuts 10 are thread-matched with the screw rods, so that the first screw rod 4 and the second screw rod 5 can achieve position and attitude fixation by rotating the screw rods themselves.

[0034] Preferably, in one embodiment, fixing blocks 11 are respectively fixed on the top surface of the bottom plate 1 at the axial extension positions of the first guide rod 6 and the second guide rod 7. The bottom ends of the guide rods are fixedly connected to the fixing blocks 11, thereby ensuring the position and attitude fixation of the first guide rod 6 and the second guide rod 7, and improving the verticality and stability of the guide rod installation.

[0035] Preferably, in one embodiment, the locking member includes four sets of locking nuts 12, which are threadedly and rotatably connected to the first screw rod 4 and the second screw rod 5. The four sets of locking nuts 12 are respectively arranged on the top and one side of the bottom of the pressing plate 8 through which the first screw rod 4 and the second screw rod 5 pass. When it is necessary to adjust the vertical height of the pressing plate 8, the locking nuts 12 on both sides of the pressing plate 8 can be rotated away from the pressing plate 8. The diameter of the hole provided in the pressing plate 8 for the screw rod to pass through is larger than the diameter of the screw rod. Therefore, at this time, the pressing plate 8 can move vertically. When it is necessary to fix the vertical height of the pressing plate 8, the locking nuts 12 on both sides of the pressing plate 8 can be rotated closer to the pressing plate 8 until the locking nuts 12 on both sides of the pressing plate 8 completely fit the top and bottom surfaces of the pressing plate 8, so that the vertical height of the pressing plate 8 is locked and fixed.

[0036] Preferably, in one embodiment, the guide rod is further provided with two sets of linear bearings 13, which are respectively fixed on the top of the pressing plate 8, specifically at the top of the hole provided in the pressing plate 8 for the guide rod to pass through, that is, the linear bearings 13 are arranged coaxially with the length extension direction of the guide rod. The guide rod passes through the raceway of the linear bearing 13 and is slidably connected to the linear bearing 13. Among them, the diameter of the guide rod is adapted to the diameter of the raceway of the linear bearing 13, and the diameter of the guide rod is slightly smaller than the diameter of the hole provided in the pressing plate 8 for the guide rod to pass through. With the help of the linear bearing 13, the pressing plate 8 slides more smoothly and stably during the vertical movement.

[0037] Preferably, in one embodiment, the top of the guide rod is further provided with a limiting portion 14, and the diameter of the limiting portion 14 is larger than the diameter of the raceway of the linear bearing 13, so that when the pressing plate 8 moves upward together with the linear bearing 13, the maximum adjustment limit is the height of the limiting portion 14, preventing the pressing plate 8 from being adjusted too much and causing it to fall off.

[0038] Preferably, in one embodiment, the length of the limiting screw rod is greater than or equal to the length of the guide rod, so as to avoid the situation that when the adjusted height of the pressing plate 8 is higher than the top height of the screw rod, the locking and fixing function of the pressing plate 8 cannot be realized.

[0039] Preferably, in one embodiment, the inclination angle of the supporting surface 202 of the first positioning portion 2 and the second positioning portion 3 is limited to 40° to 50°, preferably 45°. During the process of clamping the high-speed motor 9 by the positioning portion, the supporting surface 202 of the first positioning portion 2 and the second positioning portion 3 can fully tangent to the lower half of the high-speed motor 9, achieving a better supporting effect.

[0040] Preferably, in one embodiment, a handle 15 is further provided on the top of the plate for the operator to grasp when adjusting the vertical height of the pressing plate 8, reducing the operation difficulty of manually adjusting the height of the pressing plate 8.

[0041] Next, the adjustment process of the positioning portion and the pressing plate 8 in this embodiment will be further explained to facilitate a full understanding of the structure of this embodiment.

[0042] Before placing the fixed high-speed motor 9, the distance between the first positioning part 2 and the second positioning part 3 can be adjusted according to the radial dimension of the motor. After the adjustment is completed, the positioning part and the bottom plate 1 are fixed by bolts. Then, the high-speed motor is smoothly placed between the opposite supporting surfaces 202 of the first positioning part 2 and the second positioning part 3 and is in contact with the supporting surface 202. Loosen the four groups of locking nuts 12 at the top and bottom of the pressing plate 8 sufficiently, and hold the handle 15 to slowly press down the pressing plate 8 until the bottom surface of the pressing plate 8 is in full contact with the top side wall of the high-speed motor 9. Subsequently, rotate the four groups of locking nuts 12 at the top and bottom of the pressing plate 8 again until they are fully in contact with the top and bottom surfaces of the pressing plate 8. With the cooperation of the screw rod and the locking nuts 12, the vertical height of the pressing plate 8 is locked and fixed. At this time, the process of fixing and assembling the high-speed motor of the fixing device is completed.

[0043] The embodiments of the present invention have been described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Even if various changes are made to the present invention, provided that these changes fall within the scope of the claims of the present invention and their equivalent technologies, they still fall within the protection scope of the present invention.

Claims

1. A fixing device for high-speed motor testing, characterized in that, Comprising: A bottom plate, a positioning part, a pressing plate, a screw rod and a guide rod; The positioning part includes a first positioning part and a second positioning part. The first positioning part and the second positioning part are respectively provided with a base and a supporting surface. The base of the positioning part is detachably and fixedly connected to the bottom plate. The supporting surfaces of the first positioning part and the second positioning part are symmetrically arranged facing each other and are inclined in opposite directions at a fixed angle; The screw rod includes a first screw rod and a second screw rod. The first screw rod and the second screw rod are respectively arranged on both sides of the first positioning part and the second positioning part and are perpendicular to the bottom plate. The bottom end of the screw rod is fixedly connected to the bottom plate; The guide rod includes a first guide rod and a second guide rod. The first guide rod and the second guide rod are respectively arranged on both sides of the first positioning part and the second positioning part and are perpendicular to the bottom plate. The bottom end of the guide rod is fixedly connected to the bottom plate; The pressing plate is arranged in the same vertical plane as the positioning part, the screw rod and the guide rod. The screw rod and the guide rod respectively penetrate through the pressing plate. The pressing plate is configured to be slidably connected to the guide rod along the axial extension direction of the guide rod; A locking member is further provided on the screw rod. The locking member is used to lock and connect the pressing plate and the screw rod, thereby limiting the vertical arrangement height of the pressing plate; The supporting surfaces of the first positioning part and the second positioning part and the bottom surface of the pressing plate form an accommodating space therebetween. The accommodating space is used for placing and fixing a high-speed motor.

2. The high-speed motor testing and fixing device according to claim 1, characterized in that, A plurality of fixing holes are formed in the bottom plate. A fixing groove is formed in the base of the positioning part. A bolt can penetrate through the fixing groove and be threadedly connected to a fixing hole for fixing the positioning part and the bottom plate.

3. The high-speed motor test fixture according to claim 1, characterized in that, A screw nut is fixedly provided on the top surface of the bottom plate at the axial extension position of the screw rod. The bottom end of the screw rod is threadedly connected and fixed to the screw nut.

4. The high-speed motor testing and fixing device according to claim 1, characterized in that, A fixing block is fixedly provided on the top surface of the bottom plate at the axial extension position of the guide rod. The bottom end of the guide rod is fixedly connected to the fixing block.

5. The high-speed motor test fixing device according to claim 1, wherein The locking member includes a plurality of locking nuts. The locking nuts are rotationally threadedly connected to the screw rod. The locking nuts are respectively arranged on one side of the top and the bottom of the screw rod penetrating through the pressing plate.

6. The high-speed motor testing and fixing device according to claim 1, characterized in that, A linear bearing is fixedly provided on the top of the pressing plate. The linear bearing is coaxially arranged with the length extension direction of the guide rod. The guide rod penetrates through the raceway of the linear bearing and is slidably connected to the linear bearing.

7. The high-speed motor testing and fixing device according to claim 6, characterized in that, A limiting part is provided at the top of the guide rod. The diameter of the limiting part is larger than the diameter of the raceway of the linear bearing.

8. The high-speed motor testing and fixing device according to claim 1, characterized in that, The length of the screw rod is greater than or equal to the length of the guide rod.

9. The high-speed motor testing and fixing device according to claim 1, characterized in that The inclination angle of the supporting surface of the positioning part is defined as 40° to 50°.

10. The high-speed motor test fixing device according to claim 1, characterized in that, A handle is further provided on the top of the pressing plate.

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