Elastic element detection device for speed reducing mechanism
By designing an elastic element detection device for a speed reduction mechanism, and utilizing the working clearance of the left bearing and the lever principle, the device achieves accurate detection of the meshing quality of the worm gear, solving the problems of high detection cost and inconvenient operation in the existing technology, and ensuring that the meshing quality is within the design range.
Patent Information
- Application Number
- CN202422953229.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-02
- Publication Date
- 2025-12-19
- Estimated Expiration
- 2034-12-02
AI Technical Summary
Existing technologies are difficult to efficiently and economically test the meshing quality of worm gears, especially when manufacturing deviations exist. They cannot accurately assess the load on the elastic element, resulting in excessive clearance or transmission resistance at the meshing points. This leads to high testing costs and inconvenient on-site operation.
A detection device for elastic elements in a speed reduction mechanism was designed. By utilizing the working clearance of the left bearing and the lever principle, combined with an integrated fixture for the worm and bearing, the load on the worm at a specific position is measured. The load on the elastic element is calculated using the formula F1=F2*L1/(L1+L2), thus achieving accurate detection.
It enables accurate assessment of the load on the elastic element during worm gear meshing, reduces testing costs, simplifies on-site operations, and ensures that the meshing quality is within the design range.
Smart Images
Figure CN223692026U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a speed reducer technical field more particularly to a kind of elastic element detection device for speed reduction mechanism. BACKGROUND
[0002] As one of common speed reduction and torque increasing mechanisms, worm gear speed reduction mechanism is widely used in mechanical industry, and its main function is to realize speed reduction and torque increasing when worm drive, and to realize transmission mechanism when worm is driven, to realize the purpose of work speed adjustment of mechanism, but no matter which function, it requires higher quality of meshing of worm gear, and the most core requirement is center distance control when worm gear meshes. When center distance is bad in manufacturing or is not controlled properly, there are problems such as too large gap in meshing part or too large meshing transmission resistance. With the progress of technology and the improvement of manufacturing capacity, through more strict manufacturing of worm gear and worm and related parts, it is improved to some extent, but for some precision mechanisms, special designed mechanism is needed to realize the compensation of system performance deviation due to manufacturing deviation. The compensation scheme is to use floating elastic mechanism on one side of worm gear or worm, so that when worm gear or worm is subjected to external load and manufacturing precision of worm gear and worm deviates, the characteristics of meshing part of worm gear are always within the design performance range through the action of elastic mechanism. When this concept is used, due to the particularity of worm gear working mechanism, general elastic components are of special structure, and it is very difficult to accurately evaluate the load in action. In the development stage, external sensor and other detection mechanisms can be used for detection, but in the production process, this detection method increases the manufacturing cost and is not convenient for on-site operation. Therefore, an elastic element detection device for speed reduction mechanism is provided. SUMMARY
[0003] In order to overcome the above-mentioned defects of the prior art, the utility model provides an elastic element detection device for speed reduction mechanism to solve the problems in the above background art.
[0004] The utility model provides the following technical scheme: an elastic element detection device for speed reduction mechanism, comprising a worm gear, a worm is movably connected to the outer side of the worm gear, a left bearing is fixedly connected to one end of the outer side of the worm, a right bearing is fixedly connected to the other end of the outer side of the worm, an elastic mechanism element is fixedly connected to the outer side of the right bearing, a worm gear and worm housing is fixedly connected to the outer side of the left bearing and the elastic mechanism element, a jig is placed on the outer side of the worm, and a locking nut is fixedly connected between the left bearing, the worm gear and worm housing and the jig.
[0005] Preferably, the worm gear and the worm are meshed.
[0006] Preferably, the worm can rotate around the bearing matching point P0 in a small range.
[0007] Preferably, the left bearing has a working play during operation.
[0008] Preferably, the jig is a rigid element integrated with the worm and the left bearing.
[0009] Preferably, the jig can be considered to be rigidly connected with the worm gear housing after being locked by the lock nut.
[0010] The elastic mechanism element utilizes the working play of the left bearing, and the worm can rotate around the bearing matching point P0 in a small range omega. According to the lever principle, as long as the load F2 at the position indicated by F2 can be measured, the load F1 at the working position of the elastic mechanism element can be obtained, where F1=F2*L1 / (L1+L2). In order to measure F2, the working position height of the elastic mechanism element needs to be measured first. The device designed here has a height detection jig which is a rigid element integrated with the worm and the left bearing. After being locked by the lock nut, the height detection jig can be considered to be rigidly connected with the worm gear housing. After the worm gear housing is horizontally installed and fixed, the measuring device is used to measure the "0" position of F2, that is, the position where the measuring device just contacts, which is recorded as the "0" position. Corresponding to the "0" position, the worm gear housing remains stationary, the worm assembly is reassembled according to the device, and the load measurement of F2 position is performed again. The load at the above "0" position is the "working load" F2, and the working load F1 of the spring corresponding position can be calculated according to the formula F1=F2*L1 / (L1+L2). Figure 3 Figure 1 BRIEF DESCRIPTION OF DRAWINGS
[0011] Figure 1 It is a schematic diagram of the overall structure of the utility model.
[0012] Figure 2 It is a working schematic diagram of the utility model.
[0013] Figure 3 It is a jig schematic diagram of the utility model.
[0014] The reference signs are as follows: 1, worm; 2, worm; 3, worm gear housing; 4, left bearing; 5, lock nut; 6, right bearing; 7, elastic mechanism element; 9, jig. DETAILED DESCRIPTION
[0015] The technical solutions in the utility model will be described clearly and completely below in combination with the drawings in the utility model, and additionally, the forms of each structure recorded in the following implementation manners are only examples, and the elastic element detection device for a reduction mechanism disclosed by the utility model is not limited to each structure recorded in the following implementation manners, and all other implementation manners obtained by those skilled in the art without creative work belong to the protection scope of the utility model.
[0016] The utility model provides a kind of elastic element detection device for reduction mechanism, including worm wheel 1, the outside of worm wheel 1 is movably connected with worm 2, one end of the outside of worm 2 is fixedly connected with left bearing 4, the other end of the outside of worm 2 is fixedly connected with right bearing 6, the outside of right bearing 6 is fixedly connected with elastic mechanism element 7, the outside of left bearing 4 and elastic mechanism element 7 is fixedly connected with worm gear housing 3, fixture 9 is placed on the outside of worm 2, left bearing 4 and worm gear housing 3 are fixedly connected with lock nut 5 between fixture 9, to ensure the performance of meshing of worm wheel 1 and worm 2, need to ensure that center distance CDS is in the range set when system works.
[0017] Further, worm wheel 1 and worm 2 are engaged, and elastic mechanism element 7 is a special mechanism designed to ensure meshing performance.
[0018] Further, worm 2 can rotate around the bearing cooperation point within a small range, and the worm 2 will shake when rotating, so that a load F1 is generated at the elastic mechanism element 7.
[0019] Further, left bearing 4 has a working play when working, and elastic mechanism element 7 utilizes the working play and, according to the lever principle, as long as the load F2 at the position indicated by F2 can be measured, the load F1 at the working position of the elastic mechanism element 7 can be obtained.
[0020] Further, fixture 9 is a rigid element integrated with worm 2 and left bearing 4.
[0021] Further, fixture 9 can be considered to be rigidly connected with worm gear housing 3 after being locked by lock nut 5.
[0022] The working principle of the utility model is as follows: elastic mechanism element 7 utilizes the working play of left bearing 4, worm 2 can rotate around the bearing cooperation point P0 within a small range, according to the lever principle, as long as the load F2 at the position indicated by F2 can be measured, the load F1 at the working position of the elastic mechanism element 7 can be obtained, wherein F1=F2*L1 / (L1+L2), in order to achieve the purpose of measuring F2, the working position height of elastic mechanism element 7 needs to be measured first, and here the working position height of elastic mechanism element 7 is designed as L1, and the distance between the working position of elastic mechanism element 7 and the position indicated by F2 is designed as L2. Figure 3The device is that the height detection tool 9 is a rigid element integrated with the worm 2 and the left bearing 4, and after locking by the locking nut 5, the worm and gear housing 3 is rigidly connected with the height detection tool 9, so that only the worm and gear housing 3 is horizontally installed and fixed, the position of the "0" point of the F2 position is measured by the measuring device, that is, the position of the measuring device just contacting is memorized as the 0 position. Figure 1 The worm assembly is reassembled by the device, the load measurement of the F2 position is implemented again, the load at the 0 position is the working load F2, and the working load F1 of the spring corresponding position can be calculated according to the formula F1=F2*L1 / (L1+L2).
[0023] Finally, the following points should be explained: first, in the description of the present application, it should be pointed out that unless otherwise specified and limited, the terms "installation", "connection", "connection" should be understood broadly, which can be mechanical connection or electrical connection, or the communication between two elements, or direct connection, "up", "down", "left", "right" and the like are only used to represent the relative positional relationship, when the absolute position of the described object changes, the relative positional relationship may change;
[0024] Secondly: the present application discloses the drawings in the embodiment, only the structure related to the embodiment of the present application is involved, other structures can be referred to the usual design, in the case of no conflict, the same embodiment and different embodiments of the present application can be combined with each other;
[0025] Finally: the above only for the preferred embodiment of the present application, and does not limit the present application, any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.
Claims
1. A deceleration mechanism elastic element detection device including a worm wheel (1), characterized by: The worm gear (1) is movably connected with a worm (2) on the outside, one end of the worm (2) is fixedly connected with a left bearing (4) on the outside, the other end of the worm (2) is fixedly connected with a right bearing (6) on the outside, the right bearing (6) is fixedly connected with an elastic mechanism element (7) on the outside, the left bearing (4) and the elastic mechanism element (7) are fixedly connected with a worm gear and worm housing (3) on the outside, a jig (9) is placed on the outside of the worm (2), the left bearing (4) and the worm gear and worm housing (3) are fixedly connected with the jig (9) through a locking nut (5).
2. A device for detecting an elastic element of a reduction mechanism according to claim 1, characterized in that: The worm gear (1) and the worm (2) are engaged.
3. The elastic element detection device for a deceleration mechanism according to claim 1, characterized in that: The worm (2) can rotate in a small range around the bearing cooperation point.
4. The elastic element detection device for a deceleration mechanism according to claim 1, characterized in that: The left bearing (4) has a working play when working.
5. The elastic element detection device for a deceleration mechanism according to claim 1, characterized in that: The jig (9) is a rigid element integrated with the worm (2) and the left bearing (4).
6. The elastic element detection device for a deceleration mechanism according to claim 1, characterized by: The jig (9) can be considered as being rigidly connected with the worm gear and worm housing (3) after being locked by the locking nut (5).