Encoder mounting structure
By designing an encoder mounting structure that uses brackets and bearing assemblies to connect the encoder output shaft and the drive shaft, the problem of insufficient coaxiality is solved, the encoder's accuracy and lifespan are improved, and the installation difficulty and maintenance costs are reduced.
Patent Information
- Application Number
- CN202423100880.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-16
- Publication Date
- 2025-10-17
- Estimated Expiration
- 2034-12-16
AI Technical Summary
The existing encoder has poor coaxiality between the output shaft and the drive shaft, resulting in severe vibration after long-term operation, which affects the accuracy and lifespan of the encoder.
An encoder mounting structure is adopted, including an encoder, a bracket, a drive shaft, a bearing housing, and a drive gear. The encoder output shaft and the drive shaft are connected by a coupling. The specific design of the bracket and the bearing assembly are used to ensure coaxiality. The bracket and the bearing housing are fixed by fasteners to increase the connection reliability and reduce vibration.
It achieves coaxiality between the encoder output shaft and the drive shaft, reduces installation requirements, improves encoder accuracy and lifespan, reduces vibration and maintenance costs, and prevents external dust from entering the transmission system.
Smart Images
Figure CN223449261U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to encoder installation technical field, and particularly relates to a kind of encoder installation structure. BACKGROUND
[0002] Encoder is a kind of high-precision detection instrument for detecting the movement speed and position of press machine and numerical control machine tool, and the connecting device of the encoder directly affects the performance and safety performance of press machine or numerical control machine tool.The encoder is mostly fixed and installed by L-shaped support or U-shaped support in the prior art, and the deficiency is that the coaxiality of encoder output shaft and transmission shaft is poor, and the vibration is serious after long time work, which affects the precision and service life of encoder. CONTENT OF UTILITY MODEL
[0003] The utility model aims at providing a kind of encoder installation structure, effectively guarantee the coaxiality of encoder output shaft and transmission shaft, avoid the phenomenon of vibration, to improve the precision and life of encoder.
[0004] The utility model aims at realizing in this way: a kind of encoder installation structure, including encoder, support, transmission shaft, bearing seat and transmission gear on the same axis, the encoder output shaft is inserted into support and is connected with transmission shaft by shaft coupling, the support includes the circular mounting plate, sleeve and annular installation portion sequentially arranged from left to right, the mounting plate is provided with installation through-hole corresponding to encoder, the outer diameter of sleeve is equal with the diameter of mounting plate and the inner diameter of installation portion respectively, a plurality of first through-holes and a plurality of second through-holes are respectively provided on the mounting plate and installation portion, first fastener is arranged in the first through-hole and encoder is fixed on support, second fastener is arranged in the second through-hole and support is fixed on bearing seat, the bearing seat is provided with the installation hole and the avoiding portion corresponding transmission shaft left end and second through-hole respectively, the avoiding portion is provided with the outwardly convex annular step corresponding the second annular interior, bearing assembly is arranged between the inner wall of bearing seat and the outer wall of transmission shaft.
[0005] The utility model discloses when using, first make first fastener pass through first through -hole with encoder and support fixed connection, again through the shaft coupling with encoder output shaft and transmission shaft are connected, can ensure that both are on the same axis, when installing the support, make the installation portion inner wall and the ring step outer wall fit and can ensure that the support and bearing seat are on the same axis, finally make second fastener pass through second through -hole and mounting hole with support and bearing seat fixed connection.
[0006] As a further improvement of the utility model, the transmission shaft comprises a first shaft body and a second shaft body, the diameter of the first shaft body is smaller than that of the second shaft body, and the bearing assembly is arranged outside the second shaft body.
[0007] As a further improvement of the utility model, the bearing assembly comprises a first rolling bearing and a second rolling bearing arranged at intervals, and a spacer sleeve is arranged between the first rolling bearing and the second rolling bearing.
[0008] As a further improvement of the utility model, the bearing seat is provided with a limiting step corresponding to the first rolling bearing, one side of the inner ring of the first rolling bearing outwardly abuts against the first fastening ring, one side of the outer ring of the first rolling bearing outwardly abuts against the limiting step, one side of the inner ring of the second rolling bearing outwardly abuts against the transmission gear, and one side of the outer ring of the first rolling bearing outwardly abuts against the second fastening ring.
[0009] As a further improvement of the utility model, the bearing seat comprises a mounting lug, a fixed through hole is formed in the mounting lug, a third fastener is arranged in the fixed through hole, the third fastener fixes the bearing seat on the end cover, and a positioning hole is formed in the end cover corresponding to the fixed through hole.
[0010] As a further improvement of the utility model, the coaxiality of the mounting through hole and the mounting portion is 0.02, and the perpendicularity of the mounting plate and the sleeve is 0.04.
[0011] As a further improvement of the utility model, the circular mounting plate, the sleeve and the annular mounting portion are integrally manufactured from ZAlCu4 aluminum alloy. BRIEF DESCRIPTION OF DRAWINGS
[0012] Figure 1The utility model discloses a structure schematic drawing.
[0013] Figure 2 For Figure 1 The enlarged view of A in the middle.
[0014] Figure 3 For Figure 1 The enlarged view of B in the middle.
[0015] Figure 4 The utility model discloses a stereoscopic structure schematic drawing of support.
[0016] Wherein, 1 encoder, 2 support, 201 mounting plate, 202 sleeve, 203 installation unit, 204 mounting through -hole, 205 first through -hole, 206 second through -hole, 3 transmission shaft, 301 first axle body, 302 second axle body, 4 bearing seat, 401 avoid department, 402 mounting hole, 403 ring step, 404 limit step, 405 mounting lug, 406 fixed through -hole, 5 transmission gear, 6 bearing assembly, 601 first rolling bearing, 602 second rolling bearing, 603 spacer sleeve, 604 first fastening ring, 605 second fastening ring, 7 end cover, 701 positioning hole, 8 shaft coupling. Specific embodiments
[0017] As Figures 1-4As shown, it is an encoder mounting structure, comprising an encoder 1, a bracket 2, a transmission shaft 3, a bearing seat 4 and a transmission gear 5 on the same axis, in this embodiment, the model of the encoder 1 is ATM60-P1H13X13; the transmission shaft 3 comprises a first shaft body 301 and a second shaft body 302, the diameter of the first shaft body 301 is smaller than that of the second shaft body 302; the output shaft of the encoder 1 extends into the bracket 2 and is connected with the first shaft body 301 through a shaft coupling 8; the bracket 2 comprises a circular mounting plate 201, a sleeve 202 and an annular mounting portion 203 arranged in sequence from left to right, preferably, the circular mounting plate 201, the sleeve 202 and the annular mounting portion 203 are integrally manufactured by ZAlCu4 aluminum alloy; the mounting plate 201 is provided with a mounting through hole 204 corresponding to the encoder 1, the coaxial degree of the mounting through hole 204 and the mounting portion 203 is 0.02, and the perpendicularity of the mounting plate 201 and the sleeve 202 is 0.04; the outer diameter of the sleeve 202 is equal to the diameter of the mounting plate 201 and the inner diameter of the mounting portion 203 respectively; three first through holes 205 and four second through holes 206 are arranged on the mounting plate 201 and the mounting portion 203 respectively, the three first through holes 205 are distributed on the mounting plate 201 at equal intervals in the circumferential direction, and the four second through holes 206 are distributed on the mounting portion 203 at equal intervals in the circumferential direction; a first fastener is arranged in the first through hole 205 to fix the encoder 1 on the bracket 2, a second fastener is arranged in the second through hole 206 to fix the bracket 2 on the bearing seat 4, the bearing seat 4 is provided with an avoiding portion 401 and a mounting hole 402 corresponding to the left end of the first shaft body 301 and the second through hole 206 respectively, the avoiding portion 401 is provided with an outwardly protruding annular step 403 corresponding to the inside of the second annular ring, and a bearing assembly 6 is arranged between the inner wall of the bearing seat 4 and the outer wall of the second shaft body 302; the bearing assembly 6 comprises a first rolling bearing 601 and a second rolling bearing 602 arranged at intervals, and a spacer sleeve 603 is arranged between the first rolling bearing 601 and the second rolling bearing 602; the bearing seat 4 is provided with a limiting step 404 corresponding to the first rolling bearing 601, one side of the inner ring of the first rolling bearing 601 outwardly abuts against a first fastening ring 604, one side of the outer ring of the first rolling bearing 601 outwardly abuts against the limiting step 404, one side of the inner ring of the second rolling bearing 602 outwardly abuts against the transmission gear 5, and one side of the outer ring of the first rolling bearing 601 outwardly abuts against a second fastening ring 605; the bearing seat 4 further comprises a mounting lug 405, the mounting lug 405 is provided with a fixing through hole 406, a third fastener is arranged in the fixing through hole 406, the third fastener fixes the bearing seat 4 on an end cover 7, and the end cover 7 is provided with a positioning hole 701 corresponding to the fixing through hole 406.
[0018] The utility model discloses the advantages lie in: for the guaranteeing of the guidance of encoder 1 output end, sets up bearing assembly 6 between bearing seat 4 and transmission shaft 3, can make encoder 1 run smoothly, has improved its measurement accuracy, through the inner side of two rolling bearings of spacer 603 pressure, again cooperate with the outer side of two rolling bearings of transmission gear 5 pressure of spacing step 404, thereby fixed bearing assembly 6, make transmission shaft 3 more stable in high -speed rotation, and reduce the vibration, thereby improve the life of encoder 1, reduce the maintenance rate of part.
[0019] The utility model discloses not limited to the above -mentioned embodiment, on the basis of the technical scheme disclosed in the utility model, the skilled in the art according to the disclosed technical content, without creative labor can make some replacement and deformation to some technical features among them, these replacements and deformation are all within the protection scope of the utility model.
Claims
1. An encoder installation structure, characterized in that: It includes an encoder, a bracket, a transmission shaft, a bearing seat and a transmission gear on the same axis. The encoder output shaft extends into the bracket and is connected to the transmission shaft through a coupling. The bracket includes a circular mounting plate, a sleeve and an annular mounting portion arranged in sequence from left to right. The mounting plate is provided with a mounting through hole corresponding to the encoder. The outer diameter of the sleeve is equal to the diameter of the mounting plate and the inner diameter of the mounting portion. A plurality of first through holes and a plurality of second through holes are respectively provided on the mounting plate and the mounting portion. A first fastener is provided in the first through hole to fix the encoder on the bracket, and a second fastener is provided in the second through hole to fix the bracket on the bearing seat. The bearing seat is provided with an avoidance portion and a mounting hole corresponding to the left end of the transmission shaft and the second through hole, respectively. The avoidance portion is provided with an outward protruding ring step corresponding to the inside of the second ring. A bearing assembly is provided between the inner wall of the bearing seat and the outer wall of the transmission shaft.
2. An encoder installation structure according to claim 1, characterized in that: The transmission shaft includes a first shaft body and a second shaft body, the diameter of the first shaft body is smaller than the diameter of the second shaft body, and the bearing assembly is arranged outside the second shaft body.
3. The encoder installation structure according to claim 1, characterized in that: The bearing assembly includes a first rolling bearing and a second rolling bearing that are spaced apart, and a spacer sleeve is provided between the first rolling bearing and the second rolling bearing.
4. The encoder installation structure according to claim 3, characterized in that: The bearing seat is provided with a limiting step corresponding to the first rolling bearing, the outward side of the inner ring of the first rolling bearing abuts against the first fastening ring, the outward side of the outer ring of the first rolling bearing abuts against the limiting step, the outward side of the inner ring of the second rolling bearing abuts against the transmission gear, and the outward side of the outer ring of the first rolling bearing abuts against the second fastening ring.
5. The encoder installation structure according to claim 1, characterized in that: The bearing seat includes a mounting ear, a fixing through hole is opened on the mounting ear, a third fastener is arranged in the fixing through hole, the third fastener fixes the bearing seat on the end cover, and the end cover has a positioning hole corresponding to the fixing through hole.
6. An encoder installation structure according to any one of claims 1 to 5, characterized in that: The coaxiality between the mounting through hole and the mounting portion is 0.02, and the verticality between the mounting plate and the sleeve is 0.
04.
7. An encoder installation structure according to any one of claims 1 to 5, characterized in that: The circular mounting plate, sleeve and annular mounting portion are integrally manufactured from ZAlCu4 aluminum alloy.