CN212564344U - Gear backlash adjusting structure - Google Patents
Gear backlash adjusting structure Download PDFInfo
- Publication number
- CN212564344U CN212564344U CN202021766326.2U CN202021766326U CN212564344U CN 212564344 U CN212564344 U CN 212564344U CN 202021766326 U CN202021766326 U CN 202021766326U CN 212564344 U CN212564344 U CN 212564344U
- Authority
- CN
- China
- Prior art keywords
- flange
- adjusting
- pinion
- slewing bearing
- gear backlash
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Gears, Cams (AREA)
Abstract
The utility model relates to a gear backlash adjusting structure, belonging to the technical field of gear backlash adjusting structures; the technical problem to be solved is as follows: the improvement of a gear backlash adjusting structure is provided; the technical scheme for solving the technical problems is as follows: the adjustable flange type rotary table comprises a platform, wherein a rotary support mounting hole and an adjusting flange mounting hole are formed in the platform, a rotary support is fixedly connected to the rotary support mounting hole, an adjusting flange is fixedly connected to the adjusting flange mounting hole, a transition flange is arranged between the rotary support and the platform, a motor and a speed reducer are fixedly connected to the lower portion of the adjusting flange, a pinion is arranged on the adjusting flange, the center of the pinion is not overlapped with the center of the adjusting flange, the pinion is meshed with the rotary support, a spline of the pinion is fixed to the shaft end of the speed reducer, and a notch is formed in the adjusting flange; the utility model discloses be applied to engineering vehicle gear backlash adjustment.
Description
Technical Field
The utility model relates to a gear backlash adjustment structure belongs to gear backlash adjustment technical field.
Background
At present, a hydraulic motor pinion is meshed with a slewing bearing to drive the slewing bearing to rotate, and the hydraulic motor pinion is a common structural form of a special device for a plurality of engineering vehicles. Too large or too small of a gear backlash has drawbacks for use: the large backlash causes large return stroke error, impact and noise, and the small backlash causes no oil storage space, poor lubrication and gear seizure.
The reason why the gear backlash cannot meet the requirement is as follows: 1) machining errors of the gear; 2) machining error of center hole distance of the platform; 3) And the installation and matching errors of the components.
Theoretically, there are two main methods for adjusting the backlash of the gear: 1) the base tooth thickness is manufactured, namely the limit deviation of the tooth thickness is fixed, and the center distance is adjusted to obtain an ideal side gap; 2) the limit deviation of the center distance is fixed, the gear tooth thickness machining precision is improved, and the ideal side clearance is obtained. However, in the prior art, the backlash adjustment is time-consuming and labor-consuming, and is not generally performed on the engineering vehicle. Therefore, it is desirable to provide a structure that can simply and quickly adjust the backlash of the gears.
SUMMERY OF THE UTILITY MODEL
The utility model discloses an overcome not enough that exists among the prior art, the technical problem that will solve is: an improvement of a gear backlash adjustment structure is provided.
In order to solve the technical problem, the utility model discloses a technical scheme be: the utility model provides a gear backlash adjustment structure, includes the platform, be provided with slewing bearing mounting hole and adjustment flange mounting hole on the platform, fixedly connected with slewing bearing on the slewing bearing mounting hole, fixedly connected with adjustment flange on the adjustment flange mounting hole, be provided with transition flange between slewing bearing and the platform, the below fixedly connected with motor and the speed reducer of adjustment flange, be provided with the pinion on the adjustment flange, the center of pinion does not coincide with the center of adjustment flange, pinion and slewing bearing meshing, the axle head at the speed reducer is fixed to the spline of pinion, be provided with the breach on the adjustment flange, evenly be provided with a plurality of mounting holes on the adjustment flange.
The slewing bearing is arranged in a centering mode through a transition flange and a spigot of the platform.
At least 60 mounting holes are arranged.
A plurality of adjusting holes are uniformly formed in the slewing bearing, and the number of the adjusting holes corresponds to that of the mounting holes.
And the control end of the motor is connected with the controller through a lead.
The utility model discloses beneficial effect for prior art possesses does: the utility model discloses an increase the flange in the middle of slewing bearing and platform, carry out centering, location to improve the installation accuracy, adjustment flange and pinion eccentric settings, through knocking adjustment flange breach, change slewing bearing and the centre-to-centre spacing of pinion, thereby change the gear clearance, simple structure and convenient operation, it is with low costs, greatly improved the adjustment accuracy of gear backlash, improved work efficiency.
Drawings
The present invention will be further explained with reference to the accompanying drawings:
fig. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic structural view of the gear mounting platform of the present invention;
fig. 3 is a schematic view of the mounting structure of the adjusting flange of the present invention;
fig. 4 is a schematic view of the adjustment principle of the gear center distance of the present invention.
In the figure: 1 is a platform, 2 is a slewing bearing mounting hole, 3 is an adjusting flange mounting hole, 4 is a slewing bearing, 5 is an adjusting flange, 6 is a transition flange, 7 is a pinion, 401 is an adjusting hole, and 501 is a mounting hole.
Detailed Description
As shown in fig. 1 to 4, the utility model relates to a gear backlash adjustment structure, including platform 1, be provided with slewing bearing mounting hole 2 and adjustment flange mounting hole 3 on the platform 1, fixedly connected with slewing bearing 4 on the slewing bearing mounting hole 2, fixedly connected with adjustment flange 5 on the adjustment flange mounting hole 3, be provided with transition flange 6 between slewing bearing 4 and the platform 1, the below fixedly connected with motor and the speed reducer of adjustment flange 5, be provided with pinion 7 on the adjustment flange 5, the center of pinion 7 does not coincide with the center of adjustment flange 5, pinion 7 and slewing bearing 4 mesh, the axle head at the speed reducer is fixed to the spline of pinion 7, be provided with the breach on the adjustment flange 5, evenly be provided with a plurality of mounting holes 501 on the adjustment flange 5.
The slewing bearing 4 is arranged in a centering way with a spigot of the platform 1 through a transition flange 6.
At least 60 mounting holes 501 are provided.
A plurality of adjusting holes 401 are uniformly formed in the slewing bearing 4, and the number of the adjusting holes 401 corresponds to the number of the mounting holes 501.
And the control end of the motor is connected with the controller through a lead.
A method of gear backlash adjustment comprising the steps of:
the method comprises the following steps: installing a slewing bearing 4 and a transition flange 6 on a slewing bearing installation hole 2, wherein the slewing bearing 4 is installed after being aligned with a spigot of the platform 1 through the transition flange 6, and fastening the slewing bearing 4;
step two: firstly, a motor and a speed reducer are installed below an adjusting flange 5 and fixed, the adjusting flange 5 is placed in an adjusting flange mounting hole 3 of a platform 1 in a centering mode through a spigot without fastening, a gap of the adjusting flange 5 is placed away from a slewing bearing 4, the center distance between the slewing bearing 4 and a pinion 7 is enabled to be in the range of 655.759 mm-656.2105 mm, finally, a spline of the pinion 7 is installed at the shaft end of the speed reducer in a matching mode, and the pinion 7 is meshed with the slewing bearing 4;
step three: the slewing bearing 4 is manually pushed to rotate or is connected with a controller through a lead to control the motor to rotate at a low speed, then the gear clearance can be measured and quantified through a third-party tool, the current gear clearance is measured through a micrometer, and the measured data is recorded;
step four: according to the third step, the observed size of the current gear clearance is gradually adjusted, the copper bar is used for knocking the notch of the adjusting flange 5 to enable the notch to rotate, and the current gear clearance is measured and recorded by a micrometer every time the notch rotates once, so that the center distance between the slewing bearing 4 and the pinion 7 is gradually reduced, and the ideal gear clearance is achieved;
step five: in order to improve the gear backlash adjustment precision and prevent the gear backlash adjustment error, the adjustment measured value is compared with the gear backlash variation caused by the gear center distance deviation, so that the final gear backlash adjustment amount is obtained;
step six: after the adjustment amount of the gear backlash reaches the optimal data through the steps from the first step to the fifth step, the adjusting flange 5 is fastened.
In the fourth step, the notch of the adjusting flange 5 is knocked by the copper rod to rotate the adjusting flange, and the concrete rotating steps are as follows:
at least 60 mounting holes 501 are uniformly formed in a fluted disc of the adjusting flange 5, when the adjusting flange 5 rotates one mounting hole 501, the rotating angle of the adjusting flange 5 is at most 6 degrees, and the pinion 7 is driven to rotate once through one rotation of the adjusting flange 5, so that the gear clearance is adjusted once.
In the step five, the calculation steps of the gear backlash variation caused by the gear center distance deviation are as follows:
firstly, calculating the actual center distance between the slewing bearing and the pinion, wherein the calculation formula is as follows:
in the above formula: l iso1o2For the center distance between the slewing bearing and the pinion,
in order to adjust the center distance between the flange and the pinion,
for pivoting the support and adjusting the center distance of the flange, theta is
And
an included angle;
and then calculating the center distance deviation of the gear, wherein the calculation formula is as follows: a. thea＝Lo1o2-L′o1o2In the above formula: a. theaIn order to obtain the deviation of the center distance of the gears,
is the theoretical center distance;
and finally, calculating the gear backlash variation caused by the center distance deviation, wherein the calculation formula is as follows:
in the above formula: Δ jaIn the formula, a represents the amount of backlash variationnBeta is the gear helix angle, normal pressure angle.
The utility model discloses a gear backlash adjustment structure specifically is an adjustment structure of engineering vehicle gear backlash, especially an adjustment structure and adjustment method of slewing bearing and motor pinion meshing backlash, the utility model discloses a gear backlash adjustment structure mainly utilizes basic tooth thickness system method, fixes tooth thickness limit deviation promptly, and adjustment centre-to-centre spacing obtains the ideal backlash, obtains the ideal backlash through adjustment slewing bearing 4 and pinion 7 centre-to-centre spacing.
The slewing bearing 4 is aligned with a spigot of the platform 1 through the transition flange 6 and then installed, the motor and the speed reducer are fixed with the adjusting flange 5 at first, the rear adjusting flange 5 is aligned with the spigot of the platform 1, finally the pinion 7 is arranged at the end of the speed reducer in a spline fit mode, the adjusting flange 5 is not overlapped with the center of the pinion 7, the adjusting flange 5 rotates by knocking the notch of the adjusting flange 5 during adjustment, the center distance between the slewing bearing 4 and the pinion 7 is changed, and therefore the size of a side gap is changed.
The utility model discloses an installation and adjustment step specifically as follows:
1) installing a slewing bearing 4 and a transition flange 6, and fastening the slewing bearing 4;
2) the adjusting flange 5 is placed in the adjusting flange mounting hole 3 of the platform 1 and is not fastened, and the gap is away from the slewing bearing 4, so that the center distance between the slewing bearing 4 and the pinion 7 is a larger value;
3) a motor, a speed reducer and an adjusting flange 5 are arranged;
4) manually pushing the slewing bearing 4 to rotate or connecting a pipeline to enable the motor to rotate at a low speed, observing the size of a gap by coating red pigment on a tin wire or teeth, or observing whether the gear is meshed with a gear or not, measuring and recording an observed value of the gear side gap through a micrometer, wherein the tin wire has the characteristics of soft material, easy deformation, difficult damage to the surface of the gear and low cost, and the gap between the teeth is quantized by plugging the tin wire between two teeth to be meshed, so that the measurement is convenient; the red lead powder has the characteristics of strong color identification and low cost, and is used for fully coating the tooth surfaces of the bull gear to be meshed for detecting whether the tooth surfaces of the bull gear and the pinion are completely meshed or not so as to be convenient for visual observation;
5) the copper bar is used for knocking and adjusting the gap of the flange to rotate, the center distance between the slewing bearing 4 and the pinion 7 is reduced, and the distance between the gears is adjusted by 6 degrees when the adjusting flange 5 rotates one mounting opening (60 holes in total), so that the distance between the gears is adjusted, and the side clearance of the gears is finally adjusted;
6) gradually adjusting the center distance between the slewing bearing 4 and the pinion 7 to obtain the final ideal tooth gap;
7) comparing by using a formula (3) to prevent the backlash adjustment error;
8) the adjustment flange 5 is tightened.
The gear backlash variation caused by the gear center distance deviation comprises the following steps:
firstly, calculating the actual center distance by using a formula (1):
wherein L iso1o2For the center distance between the slewing bearing and the pinion,
in order to adjust the center distance between the flange and the pinion,
for pivoting the support and adjusting the center distance of the flange, theta is
And
an included angle;
and then, calculating the center distance deviation:
Aa＝Lo1o2-L′o1o2(2) wherein A isaIn order to obtain the deviation of the center distance of the gears,
in order to obtain the theoretical center distance,
the gear backlash variation caused by the center distance deviation is then calculated:
The utility model discloses a gear backlash adjustment structure is simple structure not only, and also convenient and fast during the adjustment, and through setting up corresponding mounting hole 501 and adjustment hole 401 on adjustment flange 5 and slewing bearing 4, the precision that enables the adjustment is higher, quantity at mounting hole 501 sets up to have 60 at least the time, the adjustment precision of gear backlash can reach 0.3mm-0.5mm, and utilize simple public formula and actual comparison, prevent to appear the adjustment mistake, make the gear backlash be in more suitable position, make the gear well move, thereby guarantee engineering vehicle's good operation.
About the utility model discloses what the concrete structure need explain, the utility model discloses a each part module connection relation each other is definite, realizable, except that the special explanation in the embodiment, its specific connection relation can bring corresponding technological effect to based on do not rely on under the prerequisite of corresponding software program execution, solve the utility model provides a technical problem, the utility model provides a model, the connection mode of parts, module, specific components and parts that appear all belong to the prior art such as the published patent that technical staff can acquire before the application day, published journal paper, or common general knowledge, need not to describe in detail for the technical scheme that the present case provided is clear, complete, realizable, and can be according to this technical means or obtain corresponding entity product.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (5)
1. A gear backlash adjustment structure, includes platform (1), its characterized in that: a slewing bearing mounting hole (2) and an adjusting flange mounting hole (3) are arranged on the platform (1), a slewing bearing (4) is fixedly connected to the slewing bearing mounting hole (2), an adjusting flange (5) is fixedly connected to the adjusting flange mounting hole (3), a transition flange (6) is arranged between the slewing bearing (4) and the platform (1), a motor and a speed reducer are fixedly connected below the adjusting flange (5), a pinion (7) is arranged on the adjusting flange (5), the center of the pinion (7) is not coincident with the center of the adjusting flange (5), the pinion (7) is meshed with the slewing bearing (4), a spline of the pinion (7) is fixed at the shaft end of the speed reducer, the adjustable flange is characterized in that a gap is formed in the adjusting flange (5), and a plurality of mounting holes (501) are uniformly formed in the adjusting flange (5).
2. A gear backlash adjustment structure according to claim 1, wherein: the slewing bearing (4) is arranged in a centering mode through a transition flange (6) and a spigot of the platform (1).
3. A gear backlash adjustment structure according to claim 1, wherein: at least 60 mounting holes (501) are arranged.
4. A gear backlash adjustment structure according to claim 3, wherein: a plurality of adjusting holes (401) are uniformly formed in the slewing bearing (4), and the number of the adjusting holes (401) corresponds to the number of the mounting holes (501).
5. A gear backlash adjustment structure according to claim 1, wherein: and the control end of the motor is connected with the controller through a lead.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021766326.2U CN212564344U (en) | 2020-08-21 | 2020-08-21 | Gear backlash adjusting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021766326.2U CN212564344U (en) | 2020-08-21 | 2020-08-21 | Gear backlash adjusting structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212564344U true CN212564344U (en) | 2021-02-19 |
Family
ID=74627755
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021766326.2U Active CN212564344U (en) | 2020-08-21 | 2020-08-21 | Gear backlash adjusting structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212564344U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112081906A (en) * | 2020-08-21 | 2020-12-15 | 山西航天清华装备有限责任公司 | Gear backlash adjusting structure and adjusting method thereof |
-
2020
- 2020-08-21 CN CN202021766326.2U patent/CN212564344U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112081906A (en) * | 2020-08-21 | 2020-12-15 | 山西航天清华装备有限责任公司 | Gear backlash adjusting structure and adjusting method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN212564344U (en) | Gear backlash adjusting structure | |
| CN111702625B (en) | Online high-precision intelligent grinding device and method for cold welding layer of shaft neck of wind power generator | |
| CN112081906A (en) | Gear backlash adjusting structure and adjusting method thereof | |
| CN111336900A (en) | Non-centering adjustment method for permanent magnet eddy current speed regulator | |
| CN213615284U (en) | Five revolving stages of concatenation formula cradle | |
| CN215980707U (en) | High-precision high-efficiency transmission gear shaft | |
| CN209551195U (en) | Gearbox shaft bearing bore and end face of flange clamp for machining | |
| CN204064659U (en) | Flame-proof electric motor test unit | |
| CN208895732U (en) | A kind of NC dividing head | |
| CN210025866U (en) | Crystal quadrangular frustum pyramid array processing and cutting tool | |
| CN208275969U (en) | The outer tooth positioning device of plate-straightening machine working roll spline | |
| CN209850855U (en) | Servo rotating table for assembling fan hub | |
| CN214218019U (en) | Be applied to lift platform's high accuracy lead screw spiral bevel gear speed reducer | |
| CN219274711U (en) | Gear positioning tool | |
| CN209511067U (en) | A kind of shell mechanism about gearbox | |
| CN215699346U (en) | High-load rotary positioner | |
| CN205341506U (en) | Stand motor encoder fixing device | |
| CN221487498U (en) | Servo electric cylinder with built-in pressure sensor | |
| CN218746081U (en) | Coaxial correcting unit of boring machine workstation subassembly ring gear installation | |
| CN221629441U (en) | Embedded encoder mounting structure in crane shaft | |
| CN215330150U (en) | Excavator rotation mechanism gear engagement backlash detects frock | |
| CN103042620B (en) | Alignment device and alignment method for in-situ tool changing process of extrusion granulation equipment | |
| CN221199706U (en) | Frock is used in gear box speed measurement | |
| CN220568829U (en) | Electric dynamometer chuck | |
| CN118150158B (en) | Gear pair static load test method and gear pair static load test device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |