Tool for testing transmission efficiency of worm gear and worm

Abstract

The utility model provides a tool for testing the transmission efficiency of a worm gear and a worm, and belongs to the technical field of mechanical transmission structure testing. According to the utility model, the torque input sensor is arranged on the station table, the two ends of the torque input sensor are respectively connected with the torque input meter and the worm connecting shaft, the worm connecting shaft is provided with the worm to be tested, and the torque output sensor is arranged on the station table and is connected with the worm gear to be tested through the worm gear connecting shaft. The auxiliary support is used for supporting the worm connecting shaft and the worm gear to be tested, the stability in the testing process is improved, the worm and the worm gear are directly and independently tested, the influence of other external factors is eliminated, the accuracy of the testing result is improved, and the occupied space is reduced. The installation of a to-be-tested worm and a to-be-tested worm gear can be realized through the worm connecting shaft and the worm gear connecting shaft, the device can still be applied after different products are replaced, corresponding connecting structures do not need to be disassembled and assembled, the operation is more convenient, and the testing efficiency is higher.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical transmission structure testing, in particular to a tool for testing the transmission efficiency of a worm gear. Background Art

[0002] As a type of mechanical transmission structure, worm gear transmission can change the direction of power output and realize power transmission in a smaller space. It has a compact structure. In addition, it can provide a sufficiently large transmission ratio, and the transmission is smooth, with low vibration and impact. At the same time, it can also achieve self-locking, and is widely used in power transmission systems.

[0003] To improve the performance of worm gear structures and avoid wasted power, worm gear designs require transmission efficiency testing to ensure efficient output. Currently, commercially available devices for testing the transmission efficiency of worm gear structures include the worm gear reducer efficiency testing device disclosed in patent CN207036315U, which comprises a test platform sensor, an input motor, an input sensor, a brake, a gear transmission, an output sensor, and a control system. The output sensor is mounted on a first connecting shaft to detect the input torque and first speed of the first connecting shaft when the input motor drives the input end of the worm gear reducer. The output sensor is mounted on a second connecting shaft to detect the output torque and second speed of the second connecting shaft when the input motor drives the input end of the worm gear reducer and drives the output end. The control system calculates the transmission efficiency of the worm gear reducer at different times based on the input torque and first speed values transmitted by the input sensor and the output torque and second speed values transmitted by the output sensor. Although the product tested by the above structure is the worm gear reducer as a whole, the transmission efficiency test is realized and the test requirements can be met, however, the overall test process will be affected by other structures and cannot fully reflect the transmission efficiency of the worm gear structure itself. In addition, during the test, it adopts a direct connection between the input and output ends of the worm gear reducer, which requires a larger test space. At the same time, when testing different products, the corresponding connection structure needs to be completely dismantled and replaced, which has a heavy workload and low efficiency, and still has the problem of inconvenience in use. Summary of the Invention

[0004] In response to the above-mentioned problems existing in the prior art, the present invention aims to provide a tool for testing the transmission efficiency of a worm gear, so that a torque input meter, a torque input sensor, a worm connecting shaft, an auxiliary bracket, a worm gear connecting shaft and a torque output sensor are arranged on a work station, and the two ends of the torque input shaft are respectively connected to the torque input meter and the worm connecting shaft, and a worm is installed on the worm connecting shaft. At the same time, the torque output sensor is installed on the worm gear through the worm gear connecting shaft, and the worm and the worm gear are meshed at the auxiliary bracket. The worm is driven to rotate by the torque input meter, and the values of the torque input sensor and the torque output sensor are monitored, which provides data for calculating the transmission efficiency. Not only is the structure simple, but it also realizes the separate installation and testing of the worm gear and the worm, avoids the test interference problem caused by other structures, and reduces the test space occupancy. In addition, different products can be replaced by directly disassembling and assembling the worm gear without disassembling the corresponding connection structure, which reduces the workload, improves the test efficiency, and is more convenient to use.

[0005] The specific technical solutions are as follows:

[0006] A tool for testing the efficiency of a worm gear transmission has the following characteristics:

[0007] Workstation;

[0008] A torque input meter is mounted on the workbench and has an output shaft;

[0009] A torque input sensor is mounted on the workbench and one end of the torque input sensor is connected to the output shaft of the torque input meter;

[0010] a worm connecting shaft, one end of which is connected to the other end of the torque input sensor, and a worm to be tested is mounted on the worm connecting shaft;

[0011] Torque output sensor, the torque output sensor is installed on the workbench;

[0012] A worm gear connecting shaft, one end of which is connected to one end of the torque output sensor, and the other end of which is mounted with a turbine to be tested;

[0013] The auxiliary bracket is installed on the workbench and is located between the torque input sensor and the torque output sensor, and the worm connecting shaft is rotatably installed on the auxiliary bracket.

[0014] The above-mentioned tooling for testing the transmission efficiency of a worm gear, wherein the worm connecting shaft includes a connecting end, a sleeve end and a quick-release assembly, the connecting end is rotatably mounted on an auxiliary bracket and connected to the other end of a torque input sensor, the worm to be tested is sleeved on the sleeve end, and the quick-release assembly is arranged on the side of the sleeve end away from the connecting end and presses one end of the worm to be tested.

[0015] In the above-mentioned tooling for testing the transmission efficiency of a worm gear, a limiting step is provided on the worm connecting shaft and between the connecting end and the sleeve shaft end, and the end of the worm to be tested that is away from the quick-release assembly rests on the limiting step.

[0016] In the above-mentioned tooling for testing the transmission efficiency of a worm gear, the quick-release assembly is rotatably mounted on the auxiliary bracket on a side away from the worm to be tested, and bearings are provided at the connecting end and between the quick-release assembly and the auxiliary bracket.

[0017] The above-mentioned tooling for testing the efficiency of worm gear transmission, wherein the quick-release assembly includes a fixing nut and a limiting nut, an internal threaded hole is provided at one end of the fixing nut, and an adjusting external thread is provided on the outer wall of the other end of the fixing nut, the internal threaded hole of the fixing nut is threadedly connected to the end of the sleeve shaft end away from the connecting end, one end of the limiting nut is threadedly connected to the adjusting external thread at the other end of the fixing nut, and the other end of the limiting nut is rotatably mounted on the auxiliary bracket.

[0018] In the above-mentioned tooling for testing the transmission efficiency of a worm gear, one end of the limit nut rotatably mounted on the auxiliary bracket is arranged in a conical surface, and the conical surface of the limit nut abuts against the bearing on the auxiliary bracket.

[0019] The above-mentioned tooling for testing the efficiency of worm gear transmission, wherein the torque input meter includes a lifting frame, the bottom of the lifting frame is installed on the workstation table, the lifting frame is provided with a lifting guide rail and a lifting slide, the lifting guide rail is fixedly installed on the lifting frame in the vertical direction, the lifting slide is slidably set on the lifting guide rail, and the lifting slide is provided with a locking part, and the torque input meter is installed on the lifting slide.

[0020] The above-mentioned tooling for testing the efficiency of worm gear transmission, wherein an inwardly concave slide groove is provided on the work station table, a locking hole is provided at the bottom of the slide groove, the bottom of the lifting frame extends into the slide groove, and a strip slide hole is provided on the lifting frame, a threaded fastener is provided in the strip slide hole and connected to the locking hole.

[0021] The above-mentioned tooling for testing the efficiency of worm gear transmission, wherein the torque output sensor is installed on a movable base, the movable base includes a movable slide rail, a movable slider, a movable platform and a mounting frame, the movable slide rail is fixedly installed on the work station table, the movable slider is slidably set on the movable slide rail, the movable platform is installed on the movable slider, and the mounting frame is installed on the movable platform, and the torque output sensor is installed on the mounting frame.

[0022] The above-mentioned tooling for testing the efficiency of worm gear transmission, wherein a stepped shaft is provided on the auxiliary bracket, the stepped shaft is arranged in a direction perpendicular to the worm connecting shaft and one end is fixed on the auxiliary bracket, the other end of the stepped shaft extends to the end of the worm gear connecting shaft away from the torque output sensor, the worm gear to be tested is rotatably sleeved on the stepped shaft, and one end of the worm gear to be tested is dynamically connected to the worm gear connecting shaft.

[0023] In the above-mentioned tooling for testing the transmission efficiency of a worm gear, a square hole is provided on the auxiliary bracket, and one end of the stepped shaft is a square head corresponding to the square hole.

[0024] The above-mentioned tooling for testing the efficiency of worm gear transmission, wherein the auxiliary bracket includes a vertical frame and two support frames, the vertical frame is vertically installed on the workbench, the two support frames are respectively installed on both sides of the vertical frame, the two bearings arranged between the connecting end and the quick-release assembly and the auxiliary bracket are respectively installed on the two support frames, and each support frame can be detachably installed on the vertical frame.

[0025] The positive effects of the above technical solution are:

[0026] The above-mentioned tooling for testing the transmission efficiency of the worm gear is achieved by connecting the two ends of the torque input shaft to the torque input meter and the worm connecting shaft respectively, and installing the worm to be tested on the worm connecting shaft. At the same time, the torque output sensor is connected to the worm gear connecting shaft, and the worm to be tested is installed on the worm gear connecting shaft. In addition, the worm gear connecting shaft is rotatably installed on the auxiliary bracket. After the worm gear and worm to be tested are engaged, the torque input meter is used to drive the worm to be tested to rotate, and the input and output torques are obtained by monitoring the torque input sensor and the torque output sensor, providing data for calculating the transmission efficiency. The structure is simple and the operation is convenient. In addition, independent testing of the worm gear and worm to be tested is realized, interference of other structures on the test results is avoided, and the test space occupancy is reduced. In addition, different products can be replaced by directly disassembling and assembling the worm gear and worm to be tested, without the need to disassemble and replace the corresponding connection structure according to different products. The workload is lighter and the testing efficiency is higher. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a structural diagram of an embodiment of a tool for testing worm gear transmission efficiency according to the present invention;

[0028] Figure 2 This is a structural diagram of an auxiliary bracket according to a preferred embodiment of the present invention;

[0029] Figure 3 This is a cross-sectional view of a worm connecting shaft according to a preferred embodiment of the present invention after being installed on an auxiliary bracket.

[0030] In the accompanying drawings: 1. Work station; 11. Slide; 2. Torque input meter; 21. Lifting frame; 22. Lifting guide rail; 23. Lifting slide; 211. Bar slide hole; 3. Torque input sensor; 4. Worm connecting shaft; 41. Connecting end; 42. Sleeve end; 43. Quick release assembly; 44. Limit step; 45. Bearing; 431. Fixing nut; 432. Limit nut; 5. Torque output sensor; 51. Moving seat; 511. Moving slide rail; 512. Moving slider; 513. Moving table; 514. Mounting frame; 6. Worm gear connecting shaft; 7. Auxiliary bracket; 71. Stepped shaft; 72. Vertical frame; 73. Support frame; 8. Worm to be tested; 9. Turbine to be tested. DETAILED DESCRIPTION

[0031] In order to make the technical means, creative features, objectives and effects of the present invention easier to understand, the following embodiments are combined with the attached Figure 1 To the attached Figure 3 The technical solution provided by the present invention is described in detail, but the following content is not intended to limit the present invention.

[0032] Figure 1 This is a structural diagram of an embodiment of a tool for testing worm gear transmission efficiency according to the present invention; Figure 2 This is a structural diagram of an auxiliary bracket according to a preferred embodiment of the present invention; Figure 3 This is a cross-sectional view of a preferred embodiment of the present invention after the worm connecting shaft is installed on the auxiliary bracket. Figure 1 、 Figure 2 as well as Figure 3 As shown, the tooling for testing the worm gear transmission efficiency provided in this embodiment includes: a work station 1, a torque input meter 2, a torque input sensor 3, a worm connecting shaft 4, a torque output sensor 5, a worm gear connecting shaft 6 and an auxiliary bracket 7.

[0033] Specifically, the workstation 1 is arranged horizontally and used as a base. At this time, the torque input meter 2, torque input sensor 3, worm connecting shaft 4, torque output sensor 5, worm gear connecting shaft 6 and auxiliary bracket 7 are all installed on the workstation 1.

[0034] Specifically, a torque input meter 2 is mounted on the workstation 1. The torque input meter 2 has an output shaft. The torque outputted by the torque input meter 2 drives the worm 8 to rotate, thereby satisfying the power output requirement and providing the necessary conditions for testing. It is worth noting that the torque input meter 2 is a commonly available torque output structure and can be purchased and used directly, representing a direct application of an existing product. Therefore, its specific structure will not be described in detail here.

[0035] Specifically, the torque input sensor 3 is installed on the workstation 1 and one end is connected to the output shaft of the torque input meter 2, so that the power of the torque input meter 2 can be transmitted to the torque input sensor 3. The input torque is detected by the torque input sensor 3, providing data support for subsequent comparison with the output torque.

[0036] Specifically, one end of the worm connecting shaft 4 is connected to the other end of the torque input sensor 3. This means that the torque input sensor 3 can drive the worm connecting shaft 4 to rotate while simultaneously monitoring the torque on the worm connecting shaft 4. Furthermore, a worm 8 to be tested is mounted on the worm connecting shaft 4. This allows the worm 8 to rotate, which in turn allows the worm 8 to subsequently drive the turbine 9 to rotate.

[0037] Specifically, the torque output sensor 5 is installed at the work station, which ensures the stability of the torque output sensor 5 during the test. At the same time, it also enables the torque output sensor 5 to subsequently detect the torque value output by the worm gear to be tested, providing data support for the subsequent calculation of the transmission efficiency.

[0038] Specifically, one end of the worm gear connecting shaft 6 is connected to one end of the torque output sensor 5, and the turbine 9 to be tested is installed on the other end of the worm gear connecting shaft 6, so that when the worm gear to be tested is driven by the worm 8 to be tested to rotate, the worm gear to be tested can drive the worm gear connecting shaft to rotate. At this time, the input torque can be detected by the torque output sensor 5 and compared with the input torque obtained by the above detection, providing data support for calculating the transmission efficiency.

[0039] Specifically, the auxiliary bracket 7 is installed on the work station 1, and the auxiliary bracket 7 is installed between the torque input sensor 3 and the torque output sensor 5. At the same time, the worm connecting shaft 4 is rotatably installed on the auxiliary bracket 7. The auxiliary bracket 7 provides auxiliary support for the worm connecting shaft 4, thereby improving the stability of the worm gear matching to be tested during the detection process and ensuring the accuracy of the test structure.

[0040] More specifically, the worm connecting shaft 4 for mounting the worm 8 to be tested includes a connecting end 41 , a sleeve end 42 and a quick-release assembly 43 . The connecting end 41 and the sleeve end 42 are connected end-to-end to form an integral structure. During installation, the connecting end 41 is rotated and installed on the auxiliary bracket 7 and connected to the other end of the torque input sensor 3, that is, the torque input sensor 3 transmits the torque to the worm connecting shaft 4 through the connecting end 41, and at the same time, the worm 8 to be tested is sleeved on the sleeve shaft end 42, so that the worm 8 to be tested is sleeved and installed on the worm connecting shaft 4, and the quick-release component 43 is set on the side of the sleeve shaft end 42 away from the connecting end 41 and presses one end of the worm 8 to be tested, that is, the worm 8 to be tested is limited and fixed after being sleeved on the worm connecting shaft 4 through the quick-release component 43, which not only facilitates the disassembly and assembly of the worm 8 to be tested on the worm connecting shaft 4, but also makes testing more convenient. At the same time, different worms 8 to be tested can be replaced for testing, which has better adaptability and does not require replacing the corresponding connection structure according to different worms 8 to be tested. The workload is lighter and the testing efficiency is higher.

[0041] More specifically, a limiting step 44 is provided on the worm connecting shaft 4 between the connecting end 41 and the sleeve end 42. This limiting step 44 can be achieved by increasing the diameter of the connecting end 41, i.e., making the diameter of the connecting end 41 larger than the diameter of the sleeve end 42 to form a limiting step 44 between the two, resulting in a more rational structural design. During installation, the end of the worm 8 to be tested that faces away from the quick-release assembly 43 is placed against the limiting step 44, allowing the two ends of the worm 8 to be constrained and compressed by the limiting step 44 and the quick-release assembly 43, respectively. This improves the stability of the worm 8 to be tested after installation on the worm connecting shaft 4, thereby ensuring the accuracy of the test results.

[0042] More specifically, the quick-release assembly 43 is pivotally mounted on the auxiliary bracket 7 on the side facing away from the worm 8 to be tested. That is, both ends of the worm connecting shaft 4, where the worm 8 to be tested is mounted, are pivotally mounted on the auxiliary bracket 7. This further ensures the stability of the worm 8 to be tested during the test, reduces the impact of external factors on the test results, and ensures the accuracy of the test structure. Furthermore, bearings 45 are provided between the connecting end 41 of the worm connecting shaft 4 and the auxiliary bracket 7, as well as between the quick-release assembly 43 and the auxiliary bracket 7, ensuring better rotation of the worm connecting shaft 4, further reducing the consumption of input torque, reducing interference factors during the test process, and improving test accuracy.

[0043] More specifically, the quick-release assembly 43, used to tighten the worm 8 under test, comprises a retaining nut 431 and a retaining nut 432. One end of the retaining nut 431 has an internally threaded hole, while the other end of the retaining nut 431 has an externally adjustable threaded hole. During installation, the internally threaded hole of the retaining nut 431 is threadedly connected to the end of the sleeve end 42 facing away from the connecting end 41. The retaining nut 431 compresses the worm 8 under test, ensuring its stability after installation. In addition, one end of the limiting nut 432 is threadedly connected to the adjusting external thread of the other end of the fixing nut 431. By turning the limiting nut 432, the installation position of the limiting nut 432 on the fixing nut 431 can be adjusted. At the same time, the other end of the limiting nut 432 is rotatably installed on the auxiliary bracket 7, that is, by turning the limiting nut 432, the limiting nut 432 can be made to contact and press against the bearing 45 on the auxiliary bracket 7, thereby realizing the rotational installation of the quick-release assembly 43 and the auxiliary bracket 7. At the same time, the tightness of the pressing against the auxiliary bracket 7 can also be adjusted by turning the limiting nut 432, which facilitates the disassembly and assembly of the worm 8 to be tested, reduces the risk of movement of the worm 8 to be tested during the test, avoids the influence of the axial and radial movement of the worm 8 to be tested on the test results during the test, and ensures the test accuracy. In addition, the installation requirements of different worms 8 to be tested can be adapted to by turning the limit nut 432, ensuring that no matter where the fixing nut 431 is located on the sleeve shaft end 42, the limit nut 432 can be turned to always rest against the bearing 45 on the auxiliary bracket 7. The structure is more flexible and has better adaptability, so that when testing different products, there is no need to disassemble and replace the corresponding connection structure according to different products, which reduces the workload and improves the testing efficiency.

[0044] More specifically, one end of the limit nut 432 rotatably mounted on the auxiliary bracket 7 is arranged in a conical surface, and when the end of the limit nut 432 is connected to the auxiliary bracket 7, the conical surface of the limit nut 432 abuts against the bearing 45 on the auxiliary bracket 7, so that the conical surface of the limit nut 432 can be automatically aligned when contacting the inner ring of the bearing 45, ensuring that the two can fit concentrically, further improving the accuracy of the detection results.

[0045] More specifically, the torque input meter 2 includes a lifting frame 21. The bottom of the lifting frame 21 is mounted on the workstation 1. A lifting guide rail 22 and a lifting slide 23 are provided on the lifting frame 21. During installation, the lifting guide rail 22 is fixedly mounted on the lifting frame 21 in a vertical direction. Meanwhile, the lifting slide 23 is slidably mounted on the lifting guide rail 22, allowing the lifting slide 23 to move vertically on the lifting guide rail 22, thereby adjusting the position of the lifting slide 23. Furthermore, a locking member is provided on the lifting slide 23, and the torque input meter 2 is mounted on the lifting slide 23. Preferably, the locking member is a locking screw, which is threadedly mounted on the lifting slide 23 and has one end that tightens or loosens the lifting guide rail 22. By turning the locking screw, the lifting slide 23 can be temporarily locked or unlocked, thereby adjusting the position of the lifting slide 23, thereby meeting the needs of replacing different torque input meters 2. It is worth pointing out that when testing different input torques or when testing different products, it is necessary to replace torque input meters 2 of different specifications. Since the external dimensions of torque input meters 2 of different specifications are different, after the torque input meter 2 is installed on the lifting slide 23, the position of the torque input meter 2 needs to be adjusted to ensure accurate correspondence with the torque input sensor 3, and the structural design is more reasonable.

[0046] More specifically, a concave chute 11 is provided on the workstation 1, and a locking hole is provided at the bottom of the chute 11. During installation, the bottom of the lifting frame 21 is inserted into the chute 11 and can slide within the lifting frame 21. At the same time, a strip-shaped sliding hole 211 is provided on the lifting frame 21. When the lifting frame 21 is slidably set in the chute 11, a threaded fastener is provided in the strip-shaped sliding hole 211 and connected to the locking hole. When the lifting frame 21 needs to move horizontally, it can be achieved by moving the lifting frame 21 within the chute 11, and the strip-shaped sliding hole 211 adapts to the sliding stroke, ensuring smooth movement of the lifting frame 21. At the same time, after the movement is completed, it is locked by the threaded fastener, thereby improving the stability of the lifting frame 21 during testing.

[0047] More specifically, the torque output sensor 5 is mounted on a movable base 51, and the position of the torque output sensor 5 is adjusted by the movable base 51, thereby facilitating the assembly and disassembly of the worm gear to be tested. The movable base 51 includes a movable rail 511, a movable slider 512, a movable platform 513, and a mounting bracket 514. During installation, the movable slide rail 511 is fixedly installed on the work station 1, and the movable slider 512 is slidably set on the movable slide rail 511. At the same time, the movable platform 513 is installed on the movable slider 512, and the mounting frame 514 is installed on the movable platform 513, and the torque output sensor 5 is installed on the mounting frame 514, so that the movable platform 513 can slide on the movable slide rail 511 through the movable slider 512, thereby realizing the adjustment of the position of the torque output sensor 5 on the mounting frame 514 in the horizontal plane, that is, when the worm gear to be tested needs to be disassembled and assembled, the torque output sensor 5 is moved to a position away from the auxiliary bracket 7 through the movable seat 51, and is moved toward the auxiliary bracket 7 after the disassembly and assembly is completed, so that the worm gear to be tested and the worm 8 to be tested are engaged to realize detection.

[0048] More specifically, a stepped shaft 71 is also provided on the auxiliary bracket 7. At this time, the stepped shaft 71 is arranged in a direction perpendicular to the worm connecting shaft 4 and one end is fixed to the auxiliary bracket 7, so that the arrangement direction of the stepped shaft 71 is consistent with the arrangement direction of the worm gear to be tested. In addition, the other end of the stepped shaft 71 is extended to the end of the worm gear connecting shaft 6 away from the torque output sensor 5. At the same time, the worm gear to be tested is rotatably sleeved on the stepped shaft 71, that is, the stepped shaft 71 provides a support base for the worm gear to be tested, ensuring that the worm gear to be tested can cooperate with the worm 8 to be tested. In addition, one end of the worm gear to be tested is dynamically connected to the worm gear connecting shaft 6, that is, the worm gear to be tested can transmit torque to the torque output sensor 5 through the worm gear connecting shaft 6, thereby meeting the test requirements.

[0049] More specifically, a square hole is provided on the auxiliary bracket 7. At this time, one end of the stepped shaft 71 is set as a square head and corresponds to the square hole, so that when the stepped shaft 71 is installed on the auxiliary bracket 7, the cooperation of the square hole and the square head can prevent the stepped shaft 71 from rotating on the auxiliary bracket 7, thereby improving the stability of the stepped shaft 71 installed on the auxiliary bracket 7 and further improving the accuracy of the test results.

[0050] More specifically, the auxiliary bracket 7 for installing the worm connecting shaft 4 includes a vertical frame 72 and two support frames 73. During installation, the vertical frame 72 is vertically installed on the workstation 1, and the two support frames 73 are respectively installed on both sides of the vertical frame 72, so that there is a gap between the two support frames 73, which provides conditions for the subsequent installation of the worm 8 to be tested. In addition, the bearing 45 set between the connecting end 41 of the worm connecting shaft 4 and the auxiliary bracket 7 and the bearing 45 set between the quick-release assembly 43 and the auxiliary bracket 7 are respectively installed on the two support frames 73, so that the connecting end 41 and the quick-release assembly 43 have corresponding support structures, and the installation stability is higher. In addition, each support frame 73 can be detachably installed on the vertical frame 72, which facilitates the assembly of various structures and also facilitates the installation of the worm 8 to be tested on the worm connecting shaft 4, and the structural design is more reasonable.

[0051] The tooling for testing the worm gear transmission efficiency provided in this embodiment includes a work station 1, a torque input meter 2, a torque input sensor 3, a worm connecting shaft 4, a torque output sensor 5, a worm wheel connecting shaft 6 and an auxiliary bracket 7; by arranging the torque input sensor 3 on the work station 1 and connecting the torque input meter 2 and the worm connecting shaft 4 at both ends respectively, a worm 8 to be tested is installed on the worm connecting shaft 4, and at the same time, the torque output sensor 5 is installed on the work station 1 and connected to the worm wheel to be tested through the worm wheel connecting shaft 6, and the auxiliary bracket 7 is used to support the worm connecting shaft 4 and the worm wheel to be tested, thereby improving the stability during the test process, and directly testing the worm and worm wheel independently, eliminating the influence of other external factors, improving the accuracy of the test results, and reducing space occupancy. In addition, the installation of the worm 8 and the worm wheel to be tested can be achieved through the worm connecting shaft 4 and the worm wheel connecting shaft 6, and it can still be applied after replacing different products, without disassembling the corresponding connection structure, making the operation more convenient and the testing efficiency higher.

[0052] The above are only preferred embodiments of the present invention and do not limit the implementation methods and protection scope of the present invention. Those skilled in the art should be aware that all solutions obtained by equivalent substitutions and obvious changes made using the description and illustrations of the present invention should be included in the protection scope of the present invention.

Claims

1. A tool for testing the efficiency of worm gear transmission, characterized in that: include: Workstation; A torque input meter, the torque input meter is mounted on the workbench, and the torque input meter has an output shaft; a torque input sensor, the torque input sensor being mounted on the workbench and having one end connected to the output shaft of the torque input meter; a worm connecting shaft, one end of which is connected to the other end of the torque input sensor, and a worm to be tested is mounted on the worm connecting shaft; A torque output sensor, the torque output sensor being mounted on the workstation; a worm gear connecting shaft, one end of which is connected to one end of the torque output sensor, and the other end of which is mounted with a turbine to be tested; An auxiliary bracket is installed on the workbench and is located between the torque input sensor and the torque output sensor, and the worm connecting shaft is rotatably installed on the auxiliary bracket.

2. The tool for testing the worm gear transmission efficiency according to claim 1, characterized in that: The worm connecting shaft includes a connecting end, a sleeve end and a quick-release assembly. The connecting end is rotatably mounted on the auxiliary bracket and connected to the other end of the torque input sensor. The worm to be tested is sleeved on the sleeve end. The quick-release assembly is arranged on the side of the sleeve end away from the connecting end and presses one end of the worm to be tested.

3. The tool for testing the worm gear transmission efficiency according to claim 2, characterized in that: A limiting step is provided on the worm connecting shaft and between the connecting end and the sleeve shaft end, and an end of the worm to be tested that is away from the quick-release assembly abuts against the limiting step.

4. The tool for testing the worm gear transmission efficiency according to claim 2 or 3, characterized in that: The quick-release assembly is rotatably mounted on the auxiliary bracket at a side facing away from the worm to be tested, and bearings are provided at the connecting end and between the quick-release assembly and the auxiliary bracket.

5. The tool for testing the worm gear transmission efficiency according to claim 4, characterized in that: The quick-release assembly includes a fixing nut and a limiting nut. An internal threaded hole is provided at one end of the fixing nut, and an adjusting external thread is provided on the outer wall of the other end of the fixing nut. The internal threaded hole of the fixing nut is threadedly connected to the end of the sleeve shaft end away from the connecting end, and one end of the limiting nut is threadedly connected to the adjusting external thread at the other end of the fixing nut. The other end of the limiting nut is rotatably mounted on the auxiliary bracket.

6. The tool for testing the worm gear transmission efficiency according to claim 5, characterized in that: One end of the limiting nut rotatably mounted on the auxiliary bracket is arranged in a conical surface, and the conical surface of the limiting nut abuts against the bearing on the auxiliary bracket.

7. The tool for testing the worm gear transmission efficiency according to claim 1, characterized in that: The torque input meter includes a lifting frame, the bottom of which is installed on the workstation table, and a lifting guide rail and a lifting slide are provided on the lifting frame. The lifting guide rail is fixedly installed on the lifting frame in the vertical direction, and the lifting slide is slidably set on the lifting guide rail. A locking member is provided on the lifting slide, and the torque input meter is installed on the lifting slide.

8. The tool for testing the worm gear transmission efficiency according to claim 7, characterized in that: The workbench is provided with an inwardly concave slide groove, the bottom of the slide groove is provided with a locking hole, the bottom of the lifting frame extends into the slide groove, and the lifting frame is provided with a strip slide hole, a threaded fastener is provided in the strip slide hole and connected to the locking hole.

9. The tool for testing the worm gear transmission efficiency according to claim 1, characterized in that: The torque output sensor is installed on a movable base, which includes a movable slide rail, a movable slider, a movable platform and a mounting bracket. The movable slide rail is fixedly installed on the work station, the movable slider is slidably set on the movable slide rail, the movable platform is installed on the movable slider, and the mounting bracket is installed on the movable platform, and the torque output sensor is installed on the mounting bracket.

10. The tool for testing the worm gear transmission efficiency according to claim 1, characterized in that: A stepped shaft is provided on the auxiliary bracket, and the stepped shaft is arranged in a direction perpendicular to the worm connecting shaft and one end is fixed to the auxiliary bracket. The other end of the stepped shaft extends to the end of the worm gear connecting shaft away from the torque output sensor. The worm gear to be tested is rotatably sleeved on the stepped shaft, and one end of the worm gear to be tested is dynamically connected to the worm gear connecting shaft.

Images