A tool for verifying self-locking performance of a deceleration mechanism

Abstract

The utility model provides a kind of tool for verifying deceleration mechanism self-locking performance, belong to mechanical structure detection technical field.The utility model is set up mutually perpendicular first slide and second slide on base, and worm wheel installation component and bearing support component are respectively slidably set in first slide and second slide, the worm wheel to be verified is installed on worm wheel installation component and is connected with driving tool, the worm to be verified is respectively installed in the first bearing and second bearing in the first bearing seat and second bearing seat of bearing support component two ends, the interval between the worm wheel to be verified and worm and the interval between the first bearing and second bearing of worm two ends are adjusted by the sliding of worm wheel installation component in first slide and the sliding of bearing support component in second slide, satisfy the verification requirement of verifying different self-locking angle in different shaft distance and different bearing position, so that verification process is more rigorous, and verification result is more accurate.

Description

TECHNICAL FIELD

[0001] The utility model relates to mechanical structure detection technical field, concretely relates to a kind of verification deceleration mechanism self-locking performance tool. BACKGROUND

[0002] With the development and large-scale application of electric drive technology, there are more and more products using electric motors as power sources. In order to realize power output, the electric motor is usually arranged with a deceleration mechanism to increase the output torque through the deceleration mechanism, so as to realize the normal operation of the product.

[0003] At present, the common deceleration mechanisms on the market include straight gear deceleration box and worm gear deceleration box. In the worm gear deceleration box, the worm is connected with the output shaft of the electric motor, and the worm gear is connected with the external load power, i.e. the electric motor drives the worm gear to rotate through the worm, thereby providing power to the load. In addition, due to the mechanical characteristics of the worm gear transmission mechanism, there is a self-locking capability, i.e. power can only be transmitted from the worm to the worm gear, and the worm gear cannot transmit power in the opposite direction to the worm. Therefore, the worm gear deceleration box is widely used in use occasions that require self-locking after stopping. However, due to the influence of factors such as machining process, materials and assembly, the worm gear deceleration box in actual use is difficult to lock the worm under certain conditions, which weakens or even loses the self-locking capability. Therefore, it is necessary to test the self-locking performance to ensure that it can play a stable self-locking role in subsequent use. However, the existing device for testing the self-locking performance of the worm gear deceleration mechanism usually completely simulates the actual installation condition of the worm gear, i.e. a rotating shaft is used to install the worm gear, a rotating shaft is used to install the worm, and the worm gear and the worm are simulated and installed in the actual installation state. Then, a torque wrench or other tool is used to input a predetermined force to rotate the worm gear, and it is determined whether the worm can rotate. If the worm rotates, it is determined that the self-locking performance is poor, and if the worm does not rotate, it is determined that the self-locking performance is good. Although the above structure can verify the self-locking performance, it only simulates the installation condition in the test process, and does not verify the influence of possible position changes such as the change of the distance between the worm gear and the worm during assembly and subsequent use, or the change of the bearing spacing for supporting the two ends of the worm. That is, different self-locking angles are not verified under different shaft distances and different bearing positions. The verification process is not rigorous, which leads to poor accuracy of the verification result. SUMMARY

[0004] In view of the above problems existing in the prior art, the present application provides a tool for verifying the self-locking performance of a speed reduction mechanism, which comprises a base, a worm wheel mounting assembly and a bearing support assembly, wherein the base is provided with two mutually perpendicular sliding channels, the worm wheel mounting assembly is slidably arranged in one of the sliding channels, and the bearing support assembly is slidably arranged in the other sliding channel.

[0005] The specific technical solutions are as follows:

[0006] The tool for verifying the self-locking performance of a speed reduction mechanism has the following characteristics:

[0007] The base is provided with two mutually perpendicular first and second sliding channels;

[0008] The worm wheel mounting assembly is slidably arranged in the first sliding channel, and the worm wheel mounting assembly and the first sliding channel are provided with a first locking assembly, and a worm wheel to be verified is rotatably arranged on the worm wheel mounting assembly;

[0009] The bearing support assembly comprises a first bearing seat, a second bearing seat and a third bearing seat, the first bearing seat, the second bearing seat and the third bearing seat are slidably arranged in the second sliding channel and are provided with a second locking assembly between the second sliding channel, and the two ends of a worm to be verified are rotatably arranged on the first bearing seat and the second bearing seat, respectively, and a rotary structure connected to one end of the worm to be verified extends to the third bearing seat and is rotatably arranged on the third bearing seat, and an angle ruler is arranged on the third bearing seat;

[0010] The driving tool is connected with the worm wheel to be verified and drives the worm wheel to rotate.

[0011] The tool for verifying the self-locking performance of a speed reduction mechanism, wherein the driving tool is a torque wrench, and a connecting sleeve is arranged between the torque wrench and the worm wheel to be verified, one end of the connecting sleeve is provided with a sleeve hole corresponding to the connecting structure of the worm wheel to be verified, the sleeve hole is key-connected with one end of the worm wheel to be verified, and the other end of the connecting sleeve is provided with a matching hole connected with the torque wrench.

[0012] The tool for verifying the self-locking performance of a speed reduction mechanism, wherein the worm wheel mounting assembly comprises a stop bar and a center column, the stop bar is slidably arranged in the first sliding channel, the center column is vertically arranged on the stop bar, and the worm wheel to be verified is rotatably arranged on the center column.

[0013] The verification deceleration mechanism self-locking performance tool, wherein the first locking assembly comprises a first strip-shaped sliding hole, a first locking hole and a first locking bolt, the first strip-shaped sliding hole is arranged in the first sliding channel and is arranged in the same direction as the first sliding channel, the first locking hole is arranged in the worm gear mounting assembly and is communicated with the first strip-shaped sliding hole, and the first locking bolt is arranged in the first locking hole and the first strip-shaped sliding hole.

[0014] The verification deceleration mechanism self-locking performance tool, wherein the first bearing seat comprises a first seat body, a baffle, a first bearing, a buffer column and a brake pad, the bottom of the first seat body is arranged in the second sliding channel in a sliding manner, a first mounting hole is arranged in the first seat body in a penetrating manner along the arrangement direction of the second sliding channel, the baffle is arranged on one side of the first seat body and covers one end of the first mounting hole, and the first bearing, the brake pad and the buffer column are arranged in the first mounting hole in sequence and in the direction of the baffle, one end of the worm to be verified is arranged on the first bearing and abuts against the brake pad.

[0015] The verification deceleration mechanism self-locking performance tool, wherein the second bearing seat comprises a second seat body, a second bearing and a seat cover, the bottom of the second seat body is arranged in the second sliding channel in a sliding manner, the top of the second seat body is provided with a first mounting groove, the seat cover is arranged on the top of the second seat body, the bottom of the seat cover is provided with a second mounting groove corresponding to the first mounting groove, and the second bearing is arranged in the cavity formed by the first mounting groove and the second mounting groove.

[0016] The verification deceleration mechanism self-locking performance tool, wherein the seat cover is provided with a shielding edge on the side close to the worm to be verified, the shielding edge is arranged at the groove opening of the second mounting groove, and one side of the second bearing abuts against the shielding edge.

[0017] The verification deceleration mechanism self-locking performance tool, wherein the third bearing seat comprises a third seat body and a third bearing, the bottom of the third seat body is arranged in the second sliding channel in a sliding manner, the third seat body is provided with a third mounting hole arranged in the same direction as the second sliding channel, the third bearing is arranged in the third mounting hole, and one end of the rotary structure connected with the worm to be verified is arranged in the third bearing in a rotating manner.

[0018] The verification deceleration mechanism self-locking performance tool, wherein the second locking assembly comprises a second strip-shaped sliding hole, a second locking hole and a second locking bolt, three groups of second strip-shaped sliding holes are arranged in the second sliding channel in a spaced manner and arranged in the same direction as the second sliding channel, the three groups of second strip-shaped sliding holes correspond to the first bearing seat, the second bearing seat and the third bearing seat respectively, the first bearing seat, the second bearing seat and the third bearing seat are provided with a second locking hole corresponding to the corresponding second strip-shaped sliding hole, and the second locking hole and the corresponding second strip-shaped sliding hole are provided with a second locking bolt.

[0019] The angle ruler comprises a ruler plate and a support plate, two connecting holes are formed on the third bearing seat and located on the side close to the second bearing seat, one end of each of the two support plates is connected with one of the two connecting holes, and the other end of each of the two support plates is connected with one end of the ruler plate, and a monitoring scale is arranged on the ruler plate.

[0020] The bottom plate is provided with an adjusting scale on the side of the first sliding channel and / or the second sliding channel, and the first bearing seat, the second bearing seat and the third bearing seat each correspond to an adjusting scale when the adjusting scale is arranged on the side of the second sliding channel.

[0021] The technical scheme has the following beneficial effects:

[0022] The first sliding channel and the second sliding channel are arranged on the bottom plate, the worm wheel mounting assembly is slidably arranged in the first sliding channel, the bearing support assembly is slidably arranged in the second sliding channel, the bearing support assembly comprises the first bearing seat, the second bearing seat and the third bearing seat arranged at intervals, the worm wheel to be verified is arranged on the worm wheel mounting assembly and connected with a driving tool, and the first bearing and the second bearing at the two ends of the worm to be verified are arranged in the first bearing seat and the second bearing seat respectively, so that the distance between the worm wheel to be verified and the worm and the distance between the first bearing and the second bearing at the two ends of the worm can be adjusted by moving the worm wheel mounting assembly and the bearing support assembly, different self-locking angles can be verified at different shaft distances and different bearing positions, the verification process is rigorous, and the accuracy of the verification result is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 The structure diagram of the embodiment of the verification device for the self-locking performance of the speed reduction mechanism is shown.

[0024] Figure 2 The structure diagram of the bottom plate of the preferred embodiment of the utility model is shown.

[0025] Figure 3 The structure diagram of the worm wheel mounting assembly of the preferred embodiment of the utility model is shown.

[0026] Figure 4 The sectional view of the first bearing seat of the preferred embodiment of the utility model is shown.

[0027] Figure 5 The sectional view of the second bearing seat of the preferred embodiment of the utility model is shown.

[0028] Figure 6 The sectional view of the third bearing seat of the preferred embodiment of the utility model is shown.

[0029] In the drawings: 1, base; 11, first sliding channel; 12, second sliding channel; 111, adjustment scale; 2, worm installation assembly; 21, blocking strip; 22, center column; 3, first locking assembly; 31, first strip-shaped sliding hole; 32, first locking hole; 4, worm to be verified; 5, bearing support assembly; 51, first bearing seat; 52, second bearing seat; 53, third bearing seat; 511, first seat body; 512, blocking piece; 513, first bearing; 514, buffer column; 515, brake pad; 521, second seat body; 522, second bearing; 523, seat cover; 531, third seat body; 532, third bearing; 5111, first mounting hole; 5211, first mounting groove; 5231, second mounting groove; 5232, shielding edge; 5311, third mounting hole; 5312, bearing fixing seat; 6, second locking assembly; 61, second strip-shaped sliding hole; 62, second locking hole; 7, angle ruler; 71, ruler plate; 72, support plate; 73, pointer; 711, monitoring scale; 8, driving tool; 81, connecting sleeve; 9, worm to be verified; 91, rotating substructure. DETAILED DESCRIPTION

[0030] In order to make the technical means, creative features, purposes and effects of the utility model easy to understand, the following examples are combined with the accompanying drawings to illustrate the utility model. Figure 1 to the accompanying drawings Figure 6 The technical solutions of the utility model are described in detail, but the following content is not a limitation of the utility model.

[0031] Figure 1 The structural diagram of an embodiment of the tool for verifying the self-locking performance of the speed reduction mechanism of the utility model is shown in FIG. 1. Figure 1 and Figure 2 As shown in FIG. 1, the tool for verifying the self-locking performance of the speed reduction mechanism provided by the embodiment includes a base 1, a worm installation assembly 2, a bearing support assembly 5, and a driving tool 8.

[0032] Figure 2 The structural diagram of the base of a preferred embodiment of the utility model is shown in FIG. 1. Figure 1 and Figure 2 As shown in FIG. 1, the base 1 is horizontally arranged, and two first sliding channels 11 and second sliding channels 12 arranged perpendicularly to each other are formed on the base 1. Preferably, the base 1 is in a rectangular plate structure, the first sliding channel 11 is arranged along the width direction of the base 1 and is arranged at one end of the base 1, and the second sliding channel 12 is arranged along the length direction of the base 1. There is enough space for arranging a certain length of the worm 9 to be verified and the rotating substructure 91 connected thereto to form an overall structure, so that the space utilization is more reasonable.

[0033] Figure 3The utility model discloses a structure diagram of worm wheel installation component of a preferred embodiment. Figure 3 As shown, the worm wheel installation component 2 is slidably arranged in the first slide 11, and the worm wheel installation component 2 is away from or close to the second slide 12 by sliding in the first slide 11. Moreover, the first locking component 3 is arranged between the worm wheel installation component 2 and the first slide 11, and the worm wheel installation component 2 is unlocked and locked by the first locking component 3, so that the position adjustment or temporary fixing of the worm wheel installation component 2 in the first slide 11 is realized, and the verification requirement is met. In addition, the worm wheel 4 to be verified is rotatably installed on the worm wheel installation component 2, so that the worm wheel 4 to be verified is away from or close to the second slide 12, and conditions for subsequent adjustment of the distance between the worm wheel 4 to be verified and the worm 9 to be verified are provided, that is, the self-locking angle verification under different shaft distances is met.

[0034] Specifically, the bearing support component 5 further includes a first bearing seat 51, a second bearing seat 52 and a third bearing seat 53. During installation, the first bearing seat 51, the second bearing seat 52 and the third bearing seat 53 are all slidably arranged in the second slide 12, so that the first bearing seat 51, the second bearing seat 52 and the third bearing seat 53 can all slide in the second slide 12, and the sliding directions are uniform. Moreover, the second locking component 6 is arranged between the first bearing seat 51, the second bearing seat 52 and the third bearing seat 53 and the second slide 12, that is, the first bearing seat 51, the second bearing seat 52 and the third bearing seat 53 can all be locked and unlocked in the second slide 12, and the adjustment requirement is met. Moreover, the two ends of the worm 9 to be verified are respectively installed on the first bearing seat 51 and the second bearing seat 52, and the distance between the first bearing 513 and the second bearing 522 of the two ends of the worm 9 to be verified is adjusted by moving the first bearing seat 51 and the second bearing seat 52, that is, the use requirement of verifying the self-locking angle under different bearing positions is met. Meanwhile, the rotary structure 91 connected to one end of the worm 9 to be verified extends to the third bearing seat 53 and is rotatably installed on the third bearing seat 53, and the third bearing seat 53 realizes the support of the rotary structure 91, and maintains the stability of the installation of the worm 9 to be verified. Moreover, the angle ruler 7 is arranged on the third bearing seat 53, that is, the third bearing seat 53 provides a carrier for the installation of the angle ruler 7, and provides convenience for subsequent verification.

[0035] Specifically, the driving tool 8 is connected with the worm wheel 4 to be verified and drives the worm wheel 4 to be verified to rotate, that is, during verification, the operator manually inputs the reverse torque to the worm wheel 4 to be verified by the driving tool 8, and drives the worm wheel 4 to be verified to rotate, and the verification requirement is met. At this time, the driving tool 8 is provided with a torque display, and the size of the input reverse torque can be directly observed, and data conditions for subsequent verification are provided.

[0036] More specifically, the driving tool 8 is a torque wrench, which can be directly purchased and used. Moreover, a connecting sleeve 81 is arranged between the torque wrench and the worm gear 4 to be verified. At one end of the connecting sleeve 81, a sleeve hole corresponding to the connecting structure of the worm gear 4 to be verified is formed. When the sleeve hole of the connecting sleeve 81 is sleeved on one end of the worm gear 4 to be verified, the sleeve hole and the one end of the worm gear 4 to be verified are in key connection, so that the connecting sleeve 81 can stably drive the worm gear 4 to be verified to rotate. In addition, a matching hole for connecting the torque wrench is formed at the other end of the connecting sleeve 81, that is, the tool head of the torque wrench can be inserted into the matching hole. The connecting sleeve 81 is rotated through the torque wrench, so as to realize the rotation of the worm gear 4 to be verified.

[0037] More specifically, the worm gear mounting assembly 2 for mounting the worm gear 4 to be verified further comprises a blocking strip 21 and a center column 22. During installation, the blocking strip 21 is arranged in the first sliding channel 11 in a sliding manner, so that the blocking strip 21 serves as a sliding structure in the first sliding channel 11 and stably slides through cooperation between the outer side of the blocking strip 21 and the first sliding channel 11. In addition, the center column 22 is vertically installed on the blocking strip 21. At this time, the bottom of the center column 22 is fixedly installed on the blocking strip 21, so as to stably install the center column 22 on the blocking strip 21. Then, the worm gear 4 to be verified is sleeved on the center column 22, so that the center column 22 can serve as a support limiting structure for stably rotating the worm gear 4 to be verified, thereby meeting the verification requirement.

[0038] More specifically, the first locking assembly 3 for locking or unlocking the worm gear mounting assembly 2 further comprises a first strip-shaped sliding hole 31, a first locking hole 32 and a first locking bolt. At this time, the first strip-shaped sliding hole 31 is arranged in the first sliding channel 11 and arranged in the same direction as the first sliding channel 11, so that the length direction of the first strip-shaped sliding hole 31 is the sliding direction of the worm gear mounting assembly 2. In addition, the first locking hole 32 is formed in the blocking strip 21 of the worm gear mounting assembly 2 and communicates with the first strip-shaped sliding hole 31. During installation, the first locking bolt is installed in the first locking hole 32 and the first strip-shaped sliding hole 31. That is, when the first locking bolt is tightened, the blocking strip 21 is locked in the first sliding channel 11, so as to temporarily fix the worm gear mounting assembly 2. When the first locking bolt is loosened, the blocking strip 21 is in an unlocked state, so that the worm gear mounting assembly 2 can slide in the first sliding channel 11, thereby adjusting the position of the worm gear mounting assembly 2.

[0039] Figure 4 It is a sectional view of the first bearing seat of a preferred embodiment of the utility model. Figure 1 and Figure 4As shown, the first bearing seat 51 of the bearing support assembly 5 comprises a first seat body 511, a baffle 512, a first bearing 513, a buffer column 514 and a brake pad 515. During installation, the bottom of the first seat body 511 is slidably arranged in the second slide 12, that is, the first seat body 511 can slide in the second slide 12. At the same time, a first mounting hole 5111 is formed through the first seat body 511 along the arrangement direction of the second slide 12, so that the first mounting hole 5111 is consistent with the arrangement direction of the worm 9 to be verified, thereby providing conditions for subsequent adjustment of the spacing between the first bearing 513 and the second bearing 522 installed at both ends of the worm 9 to be verified. In addition, one side of the first seat body 511 is provided with the baffle 512 and covers one end of the first mounting hole 5111, which facilitates the machining of the first mounting hole 5111 and forms a block at one end of the first mounting hole 5111. In addition, the first bearing 513, the brake pad 515 and the buffer column 514 are arranged in the direction of the baffle 512 at the other end of the first mounting hole 5111. During installation, one end of the worm 9 to be verified is installed on the first bearing 513 and abuts against the brake pad 515, thereby simulating the actual installation structure and ensuring the accuracy of the verification result.

[0040] Figure 5 It is a sectional view of the second bearing seat of a preferred embodiment of the utility model. As Figure 1 and Figure 5 As shown, the second bearing seat 52 of the bearing support assembly 5 comprises a second seat body 521, a second bearing 522 and a seat cover 523. During installation, the bottom of the second seat body 521 is slidably arranged in the second slide 12, so that the second seat body 521 can move in the second slide 12, thereby serving as the main structure of the second bearing seat 52 sliding in the second slide 12. At this time, a first mounting groove 5211 is formed in the top of the second seat body 521, and the seat cover 523 is installed on the top of the second seat body 521. At the same time, a second mounting groove 5231 corresponding to the first mounting groove 5211 is formed in the bottom of the seat cover 523. When the seat cover 523 and the second seat body 521 are installed, the second bearing 522 is installed in the cavity formed by the first mounting groove 5211 and the second mounting groove 5231, that is, the second bearing 522 is installed through the cavity formed by the first mounting groove 5211 and the second mounting groove 5231. Preferably, the seat cover 523 and the second seat body 521 are connected by screws, thereby realizing the detachable connection between the seat cover 523 and the second seat body 521. When the worm 9 to be verified and the rotary structure 91 connected thereto form an integral structure, the integral structure can be smoothly installed on the second bearing seat 52 through the second bearing 522, and the structural design is more reasonable.

[0041] More specifically, the seat cover 523 is provided with a shielding edge 5232 close to the worm 9 to be verified, at this time, the shielding edge 5232 is arranged at the slot of the second mounting groove 5231, and when the seat cover 523 is installed on the second seat body 521 and the second bearing 522 is installed in the cavity composed of the first mounting groove 5211 and the second mounting groove 5231, one side of the second bearing 522 abuts on the shielding edge 5232, the movement of the second bearing 522 is limited by the shielding edge 5232, so as to prevent the second bearing 522 from moving forward under the driving of the worm 9 to be verified in the verification process, and improve the accuracy of the verification structure.

[0042] Figure 6 It is a sectional view of the third bearing seat of a preferred embodiment of the utility model. As shown in Figure 1 and Figure 6 The third bearing seat 53 of the bearing support assembly 5 further comprises a third seat body 531 and a third bearing 532. When installed, the bottom of the third seat body 531 is slidably arranged in the second slide 12, so that the third seat body 531 can slide in the second slide 12, serving as the main structure for adjusting the position of the third bearing seat 53 in the second slide 12. At this time, a third mounting hole 5311 is arranged on the third seat body 531 in the same direction as the second slide 12, so that the arrangement direction of the third mounting hole 5311 is consistent with the arrangement direction of the worm 9 to be verified, that is, also consistent with the arrangement direction of the rotary structure 91 connected with the worm 9 to be verified. At the same time, the third bearing 532 is installed in the third mounting hole 5311, and one end of the rotary structure 91 connected with the worm 9 to be verified is rotatably installed on the third bearing 532, so that the third bearing seat 53 realizes the support of the end of the rotary structure 91 connected with the worm 9 to be verified, improving the stability of the worm after installation. Preferably, a bearing fixing seat 5312 is arranged in the third mounting hole 5311, and the third bearing 532 is embedded in the bearing fixing seat 5312, so that the bearing fixing seat 5312 realizes the installation of the third bearing 532 in the third mounting hole 5311. At the same time, the third mounting hole 5311 is a through hole, which facilitates the user to push the bearing fixing seat 5312 through the third mounting hole 5311 to eject the third bearing 532 from the third mounting hole 5311, and facilitates the disassembly and assembly of the third bearing 532.

[0043] More specifically, the second locking assembly 6 for locking or unlocking the first bearing seat 51, the second bearing seat 52 and the third bearing seat 53 comprises a second strip-shaped sliding hole 61, a second locking hole 62 and a second locking bolt. At this time, three groups of second strip-shaped sliding holes 61 are arranged in the second sliding channel 12, preferably, each group of second strip-shaped sliding holes 61 comprises two second strip-shaped sliding holes 61 arranged side by side and spaced apart, and each group of second strip-shaped sliding holes 61 is arranged in the same direction as the second sliding channel 12, so that the length direction of the second strip-shaped sliding hole 61 is consistent with the arrangement direction of the second sliding channel 12, providing conditions for subsequent adaptation of the first bearing seat 51, the second bearing seat 52 and the third bearing seat 53 to slide in the second sliding channel 12. In addition, the three groups of second strip-shaped sliding holes 61 correspond to the first bearing seat 51, the second bearing seat 52 and the third bearing seat 53 respectively, and the first seat body 511 of the first bearing seat 51, the second seat body 521 of the second bearing seat 52 and the third seat body 531 of the third bearing seat 53 are all provided with a second locking hole 62 corresponding to the corresponding second strip-shaped sliding hole 61, and a second locking bolt is arranged between the second locking hole 62 and the corresponding second strip-shaped sliding hole 61, that is, when one of the second locking bolts is tightened, the corresponding one of the first bearing seat 51, the second bearing seat 52 and the third bearing seat 53 is locked in the second sliding channel, and vice versa. When the second locking bolt is loosened, the corresponding one of the first bearing seat 51, the second bearing seat 52 and the third bearing seat 53 can slide in the second sliding channel 12, meeting the adjustment requirement.

[0044] More specifically, the angle ruler 7 mounted on the third bearing seat 53 comprises a ruler plate 71 and a support plate 72. At this time, two connecting holes are formed on the third seat body 531 of the third bearing seat 53 near the second bearing seat 52, and each connecting hole is connected to one end of a support plate 72, that is, one support plate 72 is mounted on the third bearing seat 53 through a connecting hole. The other end of the two support plates 72 is connected to the two ends of the ruler plate 71, that is, the ruler plate 71 is stably mounted on the third bearing seat 53 through the two support plates 72. In addition, a monitoring scale 711 is arranged on the ruler plate 71, providing conditions for subsequent observation of the rotation of the worm 9 to be verified. Preferably, the ruler plate 71 is arranged in a circular arc shape, and when the ruler plate 71 is mounted on the third bearing seat 53 through the support plate 72, the center of the circular arc of the ruler plate 71 coincides with the axis of the third bearing 532. In addition, during verification, a pointer 73 can be mounted on the rotary substructure 91 connected to the worm 9 to be verified, and the pointer 73 corresponds to the monitoring scale 711 on the ruler plate 71, so that when the worm 9 to be verified rotates, the change of the pointer 73 relative to the monitoring scale 711 can be objectively and directly reflected, making verification more convenient.

[0045] More specifically, the adjusting scale 111 is arranged on the base 1 and at the side edge of the first sliding channel 11 and / or the second sliding channel 12, and when the adjusting scale 111 is arranged at the side edge of the second sliding channel 12, the first bearing seat 51, the second bearing seat 52 and the third bearing seat 53 each correspond to the adjusting scale 111, that is, the position adjusting condition of the worm wheel mounting assembly 2 in the first sliding channel 11 can be observed through the adjusting scale 111, and the position adjusting condition of the bearing supporting assembly 5 in the second sliding channel 12 can be observed, and the verification is further facilitated.

[0046] The verification tool for verifying the self-locking performance of the deceleration mechanism provided by the embodiment comprises a base 1, a worm wheel mounting assembly 2, a bearing supporting assembly 5 and a driving tool 8; the first sliding channel 11 and the second sliding channel 12 which are perpendicular to each other are arranged on the base 1, and the worm wheel mounting assembly 2 and the bearing supporting assembly 5 are respectively arranged in the first sliding channel 11 and the second sliding channel 12 in a sliding manner; the worm wheel 4 to be verified is mounted on the worm wheel mounting assembly 2 and connected with the driving tool 8; the worm 9 to be verified is mounted at the first bearing 513 and the second bearing 522 in the first bearing seat 51 and the second bearing seat 52 of the bearing supporting assembly 5 at two ends thereof; the distance between the worm wheel 4 to be verified and the worm and the distance between the first bearing 513 and the second bearing 522 at two ends of the worm are adjusted through the sliding of the worm wheel mounting assembly 2 in the first sliding channel 11 and the sliding of the bearing supporting assembly 5 in the second sliding channel 12, so as to meet the verification requirement of different self-locking angles at different shaft distances and different bearing positions, make the verification process more rigorous, and make the verification result more accurate.

[0047] The above is only the preferable embodiment of the utility model, and does not limit the implementation mode and protection scope of the utility model, and for the person skilled in the art, it should be realized that the scheme obtained by equivalent replacement and obvious change of the utility model specification and drawing content should be contained in the protection scope of the utility model.

Claims

1. A tooling for verifying the self-locking performance of a speed reduction mechanism, characterized in that, include: The base has two mutually perpendicularly arranged first and second slides. A worm gear mounting assembly is slidably disposed within a first slide rail, and a first locking assembly is provided between the worm gear mounting assembly and the first slide rail. The worm gear to be verified is rotatably mounted on the worm gear mounting assembly. A bearing support assembly includes a first bearing housing, a second bearing housing, and a third bearing housing. The first bearing housing, the second bearing housing, and the third bearing housing are all slidably disposed within a second slide rail and are all provided with a second locking assembly between themselves and the second slide rail. The two ends of the worm gear to be verified are respectively mounted on the first bearing housing and the second bearing housing. Meanwhile, a return rotor structure connected to one end of the worm gear to be verified extends to the third bearing housing and is rotatably mounted on the third bearing housing. An angle gauge is provided on the third bearing housing. A driving tool, which is connected to the worm gear to be verified and drives the worm gear to rotate.

2. The tooling for verifying the self-locking performance of the deceleration mechanism according to claim 1, characterized in that, The driving tool is a torque wrench, and a connecting sleeve is provided between the torque wrench and the worm gear to be verified. One end of the connecting sleeve has a sleeve hole corresponding to the connection structure of the worm gear to be verified, and the sleeve hole is keyed to one end of the worm gear to be verified. The other end of the connecting sleeve has a mating hole for connecting with the torque wrench.

3. The tooling for verifying the self-locking performance of the deceleration mechanism according to claim 1, characterized in that, The worm gear mounting assembly includes a stop bar and a center column. The stop bar is slidably disposed in the first slide rail, and the center column is vertically mounted on the stop bar. The worm gear to be verified is rotated and sleeved on the center column.

4. The tooling for verifying the self-locking performance of the deceleration mechanism according to claim 1, characterized in that, The first locking assembly includes a first strip-shaped sliding hole, a first locking hole, and a first locking bolt. The first strip-shaped sliding hole is disposed in the first slide rail and arranged in the same direction as the first slide rail. The worm gear mounting assembly has a first locking hole that communicates with the first strip-shaped sliding hole. The first locking bolt is installed in the first locking hole and the first strip-shaped sliding hole.

5. The tooling for verifying the self-locking performance of the deceleration mechanism according to claim 1, characterized in that, The first bearing housing includes a first seat body, a baffle plate, a first bearing, a buffer column, and a brake pad. The bottom of the first seat body is slidably disposed in the second slide rail. A through first mounting hole is opened on the first seat body along the arrangement direction of the second slide rail. The baffle plate is provided on one side of the first seat body and covers one end of the opening of the first mounting hole. The first bearing, the brake pad, and the buffer column are arranged sequentially at the other end of the opening of the first mounting hole toward the baffle plate. One end of the worm gear to be verified is mounted on the first bearing and abuts against the brake pad.

6. The tooling for verifying the self-locking performance of the deceleration mechanism according to claim 1, characterized in that, The second bearing housing includes a second housing body, a second bearing, and a housing cover. The bottom of the second housing body is slidably disposed in the second slide rail. A first mounting groove is provided on the top of the second housing body. The housing cover is installed on the top of the second housing body, and a second mounting groove corresponding to the first mounting groove is provided on the bottom of the housing cover. The second bearing is installed in the cavity formed by the first mounting groove and the second mounting groove.

7. The tooling for verifying the self-locking performance of the deceleration mechanism according to claim 6, characterized in that, The seat cover has a shielding edge on the side near the worm gear to be verified. The shielding edge is located at the opening of the second mounting groove, and one side of the second bearing abuts against the shielding edge.

8. The tooling for verifying the self-locking performance of the deceleration mechanism according to claim 1, characterized in that, The third bearing housing includes a third housing body and a third bearing. The bottom of the third housing body is slidably disposed within the second slide rail. The third housing body has a third mounting hole arranged in the same direction as the second slide rail. The third bearing is installed in the third mounting hole. Furthermore, one end of the return rotor structure connected to the worm gear to be verified is rotatably mounted on the third bearing.

9. The tooling for verifying the self-locking performance of the deceleration mechanism according to claim 1, characterized in that, The second locking assembly includes a second strip-shaped sliding hole, a second locking hole, and a second locking bolt. Three sets of second strip-shaped sliding holes are spaced apart in the second slide rail and are all arranged in the same direction as the second slide rail. The three sets of second strip-shaped sliding holes correspond to the first bearing seat, the second bearing seat, and the third bearing seat, respectively. The first bearing seat, the second bearing seat, and the third bearing seat are all provided with second locking holes corresponding to the corresponding second strip-shaped sliding holes, and a second locking bolt is provided between the second locking hole and the corresponding second strip-shaped sliding hole.

10. The tooling for verifying the self-locking performance of the deceleration mechanism according to claim 1, characterized in that, The angle ruler includes a ruler plate and a support plate. Two connecting holes are provided on the third bearing seat and on the side close to the second bearing seat. Each of the two connecting holes is connected to one end of the support plate. The other ends of the two support plates are connected to both ends of the ruler plate. The ruler plate is provided with a monitoring scale.

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