A DHT motor temperature test auxiliary support device

Abstract

The utility model discloses a DHT motor temperature test auxiliary support device, comprising a base plate, a bracket is arranged on the base plate, a mounting motherboard is arranged on one side of the bracket, the mounting motherboard is vertically arranged on the base plate, a bearing seat is arranged on the mounting motherboard, and a transmission mechanism is arranged on the bearing seat. By adopting the DHT motor temperature test auxiliary support device of the utility model, two prototypes can be synchronously operated in the same direction, thereby improving stability and test accuracy.

Description

Technical Field

[0001] The utility model belongs to the technical field of motor performance testing, and specifically relates to a DHT motor temperature testing auxiliary support device. Background Art

[0002] With the rapid development of new energy vehicles, the requirements for core components in new energy vehicles are getting higher and higher, especially key power components such as motors, which need urgent innovation and development. The motor is the core component of the hybrid special transmission DHT, so the research on B2B high and low temperature test of new energy DHT prototypes and the research on key equipment technology are highlighted.

[0003] With current technology, when the DHT prototype is conducting B2B high and low temperature tests, it is inconvenient to connect the test prototype to the dynamometer. The test prototype also does not have a suitable, safe and reliable structure to support it, and the two prototypes are currently connected in opposite directions. The DHT prototype is easily affected by unstable factors that affect the test accuracy, causing difficulties in product development.

[0004] The utility model patent with announcement number CN210744927U disclosed on June 12, 2020, a motor fixing device on a dynamometer, which includes a substrate placed vertically and matched with the dynamometer, a through hole for the motor shaft to pass through, an upper bracket and a lower bracket are provided on the other plate surface of the substrate opposite to the dynamometer, and an installation space for the motor to be placed is formed between the upper bracket and the lower bracket; the upper bracket includes an end plate, a left plate and a right plate, the end plate is parallel to the substrate and directly opposite to the through hole, the left plate and the right plate are respectively connected to the left and right sides of the end plate and connected to the substrate; the left plate is connected to the first adjustment bolt, the right plate is connected to the second adjustment bolt, the end plate is connected to the third adjustment bolt, the lower bracket includes a support plate, the support plate is placed horizontally, the support plate is located directly below the through hole and connected to the substrate, and the support plate is connected to the fourth adjustment bolt. This device cannot be used for DHT motor temperature testing, nor can it achieve synchronous operation of two DHT prototypes in the same direction. Utility Model Content

[0005] The utility model aims to provide a DHT motor temperature test auxiliary support device for realizing the synchronous operation of two prototypes in the same direction and improving the stability and accuracy in view of the deficiencies in the prior art.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] The DHT motor temperature test auxiliary support device comprises a base plate, a bracket is arranged on the base plate, a mounting motherboard is arranged on one side of the bracket, the mounting motherboard is vertically arranged on the base plate, a bearing seat is arranged on the mounting motherboard, and a transmission mechanism is arranged on the bearing seat.

[0008] The transmission mechanism includes a synchronous belt, two bearing seats are provided, a pulley is rotatably connected to the bearing seat, and the synchronous belt cooperates with the pulley; a mounting hole is provided on the mounting motherboard, a plug-in end is provided at one end of the bearing seat, the plug-in end extends into the mounting hole, a main shaft and a connecting seat are respectively provided at both ends of the pulley, the main shaft extends from the bearing seat, and the connecting seat is located in the mounting hole.

[0009] A support is provided at the middle part of the top end of the bracket, a mounting plate is provided on the support, a tensioning wheel is provided on the connecting plate, the tensioning wheel cooperates with the synchronous belt, a waist-shaped hole is provided on the mounting plate, and the support and the mounting plate are connected by bolts.

[0010] A connecting plate is arranged between the two bearing seats, a bearing is arranged between the connecting plate and the pulley, and an edge of the connecting plate has an arc-shaped transition.

[0011] The mounting mother plate is provided with connecting holes, and the connecting holes are symmetrically distributed with respect to the bearing seat.

[0012] The bearing seat is also rotatably connected with an idler wheel, and the idler wheel abuts against the synchronous belt.

[0013] A reinforcing rod is provided on the side of the bracket, and both the bracket and the reinforcing rod are square tubes.

[0014] The bottom plate is provided with fixing holes.

[0015] A positioning groove is provided on the plug-in end.

[0016] The technical effects of the utility model are as follows: the DHT motor temperature test auxiliary support device of the utility model is adopted to provide reliable support for the temperature test of the DHT motor, provide a connection position for the DHT motor and the dynamometer, meet the stability conditions for the DHT prototype test, and ensure the stability and service life of the test prototype; change the traditional test mode of connecting two prototypes in opposite directions through the power transmission of the belt drive mechanism, realize the synchronous operation of the two DHT prototypes in the same direction, realize the synchronization of the operation of the two DHT prototypes in the B2B high and low temperature test, and solve the problem of B2B stable test of the DHT prototype under ultra-high speed and high temperature scenarios by combining the reliable connection and support of the DHT motor by the overall device; the overall structural design is simple, the structure is reasonable, and it has the advantages of compact structure, small space occupation, and easy installation and maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] This specification includes the following drawings, which show the following contents:

[0018] Figure 1 It is a structural schematic diagram of the DHT motor temperature test auxiliary support device of the utility model;

[0019] Figure 2 yes Figure 1 A schematic diagram of the structure from another perspective;

[0020] Figure 3 It is a structural schematic diagram of the bearing seat of the utility model.

[0021] The markings in the figure are: 1. Base plate; 2. Bracket; 3. Mounting motherboard; 4. Bearing seat; 5. Pulley; 6. Synchronous belt; 7. Main shaft; 8. Connecting seat; 9. Mounting hole; 10. Connecting plate; 11. Connecting hole; 12. Bearing; 13. Support; 14. Mounting plate; 15. Tensioner; 16. Fixing hole; 17. Reinforcing rod; 18. Plug-in end; 19. Waist-shaped hole; 20. Opening; 21. Idle wheel; 22. Positioning groove. DETAILED DESCRIPTION

[0022] The specific implementation methods of the utility model are further explained in detail below with reference to the accompanying drawings through the description of embodiments, with the aim of helping those skilled in the art to have a more complete, accurate and in-depth understanding of the inventive concept and technical solution of the present invention and to facilitate their implementation.

[0023] like Figures 1 to 3 As shown, the DHT motor temperature test auxiliary support device includes a base plate 1, a bracket 2 is provided on the base plate 1, a mounting motherboard 3 is provided on one side of the bracket 2, the mounting motherboard 3 is vertically arranged on the base plate 1, a bearing seat 4 is provided on the mounting motherboard 3, and a transmission mechanism is provided on the bearing seat 4. The base plate 1 and the bracket 2 are the support and installation carriers of the entire test device. The overall device has a compact structure, occupies a small space, and is easy to move, and can complete the test work in different venues. The installation operation is convenient, the components do not interfere with each other, and the inspection and maintenance are convenient.

[0024] like Figures 1 to 3As shown, the transmission mechanism includes a synchronous belt 6, two bearing seats 4 are provided, and a pulley 5 is rotatably connected to the bearing seat 4, and the synchronous belt 6 cooperates with the pulley 5; a mounting hole 9 is provided on the mounting motherboard 3, and a plug-in end 18 is provided at one end of the bearing seat 4, and the plug-in end 18 extends into the mounting hole 9, and a main shaft 7 and a connecting seat 8 are respectively provided at both ends of the pulley 5, and the main shaft 7 extends from the bearing seat 4, and the connecting seat 8 is located in the mounting hole 9. The synchronous operation of the two DHT prototypes in the same direction is realized by the transmission method of belt drive, which has a simple structure, low use cost, and more convenient parts maintenance. The two ends of the pulley 5 are respectively connected to the sample and the dynamometer to realize the synchronous rotation of the output shaft of the connected sample, the pulley 5 and the input shaft of the dynamometer. At the same time, with the cooperation of the synchronous belt 6 and the two pulleys 5, the synchronous test of the two DHT prototypes is realized, which meets the test adjustment. The mounting motherboard 3 is provided with a mounting hole 9 for mounting the bearing seat 4. The bearing seat 4 is fixed to the mounting motherboard 3 by bolts. One end of the bearing seat 4 is provided with a plug-in end 18. The plug-in end 18 is provided with a positioning groove 22. The plug-in end 18 is adapted to the mounting hole 9. The bearing seat 4 is provided with an opening 20, which can facilitate the installation of the pulley 5.

[0025] like Figure 2 As shown, a support 13 is provided at the middle of the top of the bracket 2, a mounting plate 14 is provided on the support 13, a tensioning wheel 15 is provided on the connecting plate 10, the tensioning wheel 15 cooperates with the synchronous belt 6, a waist-shaped hole 19 is provided on the mounting plate 14, and the support 13 and the mounting plate 14 are connected by bolts. The above structure is a tensioning device for the synchronous belt 6 of the belt transmission mechanism, which is installed on the bracket 2 to adjust the tightness of the synchronous belt 6. The tightness of the synchronous belt 6 is adjusted by moving the mounting plate 14 up and down on the support 13, which is conducive to ensuring that the gear teeth of the synchronous belt 6 and the pulley 5 do not deviate or disengage, and ensure the stability of the transmission.

[0026] like Figure 2 As shown, a connecting plate 10 is provided between the two bearing seats 4, a bearing 12 is provided between the connecting plate 10 and the pulley 5, and the edge of the connecting plate 10 has an arc transition. The two bearing seats 4 are rigidly connected by the connecting plate 10. Since one end of the bearing seat 4 is fixed by the mounting mother plate 3, the connecting plate 10 is used to fix the other end of the bearing seat 4, thereby enhancing the stability of the operation of the bearing seat 4, reducing the shaking of the bearing seat 4, and improving the stability. The setting of the bearing 12 is used to prevent the rotation of the pulley 5 or the main shaft 7 from affecting the stable fixation of the bearing seat 4.

[0027] like Figure 1 As shown, the mounting motherboard 3 is provided with connection holes 11, and the connection holes 11 are symmetrically distributed about the bearing seat 4. There are multiple groups of connection holes 11, which are adapted to different types of connection rings. According to different models of the tested prototypes, only the corresponding connection rings need to be changed and installed, thereby improving the compatibility of the high and low temperature test device of the prototype.

[0028] like Figure 3As shown, the bearing seat 4 is also rotatably connected with an idler wheel 21, and the idler wheel 21 abuts against the synchronous belt 6. The idler wheel 21 is installed on the housing of the bearing seat 4, and the surface of the idler wheel 21 is smooth, and is used to adjust the angle of the synchronous belt 6.

[0029] like Figure 2 As shown, a reinforcing rod 17 is provided on the side of the bracket 2, and the bracket 2 and the reinforcing rod 17 are both square tubes. The reinforcing rod 17 can improve the strength of the bracket 2, ensure the alignment of the bracket 2 installation, and then ensure that the installation motherboard 3 is accurately installed, and ensure that the sample output shaft, the pulley 5 and the dynamometer input shaft are in the horizontal state, so that the power transmission is more stable. The bracket 2 and the reinforcing rod 17 are connected by square tube welding, which has a stable structure and low manufacturing cost.

[0030] like Figure 1 and Figure 2 As shown, the bottom plate 1 is provided with fixing holes 16. The fixing holes 16 are arranged in pairs and evenly distributed on the bottom plate 1, so that the whole device can be stably mounted on the machine platform.

[0031] like Figure 3 As shown, a positioning groove 22 is provided on the plug-in end 18. The positioning groove 22 can ensure that the bearing seat 4 is installed accurately.

[0032] The implementation process is as follows: the DHT test prototype is installed on the mounting motherboard 3 through a specific connecting ring; the mounting motherboard 3 is installed on the bracket 2; the bearing seat 4 is installed on the bracket 2; the two ends of the bearing seat 4 are respectively connected to the sample spindle 7 and the dynamometer input shaft, and the two pulleys 5 are synchronously driven through the belt drive. The device is placed in the environmental chamber required for high and low temperature testing, and the power test of the two test prototypes of the dynamometer is carried out to obtain the relationship between the power and temperature of the DHT prototype at the extreme temperature. The above technical solution solves the problem of B2B stable testing of DHT prototypes in ultra-high speed and high temperature scenarios, as well as the disadvantages of the opposite connection of traditional test prototypes, which not only shortens the R&D cycle, but also improves the safety and accuracy of DHT prototype development and testing, and saves R&D costs.

[0033] The DHT motor temperature test auxiliary support device provides reliable support for the temperature test of the DHT motor, provides a connection position for the DHT motor and the dynamometer, meets the stability conditions for the DHT prototype test, and also ensures the stability and service life of the test prototype; the two DHT prototypes can be synchronously operated in the same direction through the power transmission of the belt drive mechanism, and the synchronization of the operation of the two DHT prototypes in the B2B high and low temperature test is achieved. Combined with the reliable connection and support of the DHT motor by the overall device, the problem of B2B stable testing of the DHT prototype under ultra-high speed and high temperature scenarios is solved; the overall structural design is simple and reasonable, and has the advantages of compact structure, small space occupation, and easy installation and maintenance.

[0034] The above is an exemplary description of the utility model in conjunction with the accompanying drawings. Obviously, the specific implementation of the utility model is not limited to the above-mentioned method. As long as various non-substantial improvements are made using the method concept and technical solution of the utility model; or the above concept and technical solution of the utility model are directly applied to other occasions without improvement, they are all within the protection scope of the utility model.

Claims

1. A DHT motor temperature test auxiliary support device, characterized in that: The invention comprises a base plate (1), a bracket (2) is provided on the base plate (1), a mounting mother plate (3) is provided on one side of the bracket (2), the mounting mother plate (3) is vertically arranged on the base plate (1), a bearing seat (4) is provided on the mounting mother plate (3), and a transmission mechanism is provided on the bearing seat (4); the transmission mechanism comprises a synchronous belt (6), two bearing seats (4) are provided, a pulley (5) is rotatably connected to the bearing seat (4), and the synchronous belt (6) cooperates with the pulley (5); the mounting mother plate (3 ) is provided with a mounting hole (9), one end of the bearing seat (4) is provided with a plug-in end (18), and the plug-in end (18) extends into the mounting hole (9), and the two ends of the pulley (5) are respectively provided with a main shaft (7) and a connecting seat (8), the main shaft (7) extends from the bearing seat (4), and the connecting seat (8) is located in the mounting hole (9); a connecting plate (10) is provided between the two bearing seats (4), and a bearing (12) is provided between the connecting plate (10) and the pulley (5), and the edge of the connecting plate (10) has an arc transition.

2. The DHT motor temperature test auxiliary support device according to claim 1, characterized in that: A support (13) is provided at the middle of the top end of the bracket (2), a mounting plate (14) is provided on the support (13), a tensioning wheel (15) is provided on the connecting plate (10), the tensioning wheel (15) cooperates with the synchronous belt (6), a waist-shaped hole (19) is provided on the mounting plate (14), and the support (13) and the mounting plate (14) are connected by bolts.

3. The DHT motor temperature test auxiliary support device according to claim 1 or 2, characterized in that: The mounting motherboard (3) is provided with connection holes (11), and the connection holes (11) are symmetrically distributed with respect to the bearing seat (4).

4. The DHT motor temperature test auxiliary support device according to claim 1, characterized in that: An idler wheel (21) is also rotatably connected to the bearing seat (4), and the idler wheel (21) abuts against the synchronous belt (6).

5. The DHT motor temperature test auxiliary support device according to claim 1, characterized in that: A reinforcing rod (17) is provided on the side of the bracket (2), and both the bracket (2) and the reinforcing rod (17) are square tubes.

6. The DHT motor temperature test auxiliary support device according to claim 5, characterized in that: The bottom plate (1) is provided with a fixing hole (16).

7. The DHT motor temperature test auxiliary support device according to claim 1, characterized in that: The plug-in end (18) is provided with a positioning groove (22).

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