CN210661314U - Backlash adjusting structure - Google Patents
Backlash adjusting structure Download PDFInfo
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- CN210661314U CN210661314U CN201921601889.3U CN201921601889U CN210661314U CN 210661314 U CN210661314 U CN 210661314U CN 201921601889 U CN201921601889 U CN 201921601889U CN 210661314 U CN210661314 U CN 210661314U
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- adjusting
- intermediate gear
- gear shaft
- hole
- flange
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Abstract
The utility model discloses a tooth side clearance adjusts structure relates to engine technical field. The tooth side clearance adjusting structure comprises an intermediate gear shaft and an adjusting flange plate connected with a machine body, wherein the adjusting flange plate is provided with a rotating locking structure between the machine body, and the intermediate gear shaft is eccentrically arranged on the adjusting flange plate. The utility model discloses flank clearance adjusts simple structure, and the manufacturability is good, has solved the not good problem of adjusting in a set of gear flank clearance of engaged with.
Description
Technical Field
The utility model relates to the technical field of engines, concretely relates to tooth side clearance adjusts structure.
Background
With the increase of the power and the rotating speed of the engine, the influence of the tooth side clearance on the NVH (English abbreviation of noise, vibration and sound vibration roughness) of the whole engine and the strength of the gear is larger and larger. The gear shafts of the gear pairs of the existing partial design are not arranged on the same part, so that high requirements are put on the machining precision of all matched parts, the tolerance of the center distance between two intermediate gear shafts is increased, and the risk of overlarge tooth side clearance or tooth biting is caused.
In diesel engines, for example, the camshaft is driven by the crankshaft via a transmission, the center distance is generally large, and at the same time, accessories such as an injection pump, an air pressure pump and the like need to be driven, so that an intermediate gear needs to be added. In order to avoid the change of the tooth side clearance between the timing gear and the intermediate gear of the camshaft, a gear shaft with the function of adjusting the tooth side clearance is adopted.
Researchers have taken various measures to adjust the change of the backlash between the timing gear and the intermediate gear of the camshaft, such as adding an auxiliary adjusting device and repeatedly assembling and disassembling and adjusting, but these measures have set a series of requirements on the manufacturability and the economy of products, and the repeated disassembling has a great influence on the overall assembly.
SUMMERY OF THE UTILITY MODEL
To the above defect that prior art exists, the utility model provides a structure is adjusted in flank clearance, this structure is adjusted in flank clearance simple structure, and the manufacturability is good, has solved the not good problem of adjusting in a set of gear flank clearance of engaged with.
In order to solve the technical problem, the utility model discloses a technical scheme is:
the tooth side clearance adjusting structure comprises an intermediate gear shaft and an adjusting flange plate connected with a machine body, wherein the adjusting flange plate is provided with a rotating locking structure between the machine body, and the intermediate gear shaft is eccentrically arranged on the adjusting flange plate.
Wherein, it is in to rotate locking structure including setting up locking hole on the organism sets up regulation hole on the regulation ring flange, and pass the regulation hole with the retaining member that the locking hole is connected, the regulation hole with the axis of regulation ring flange is center pin circumference extension.
The adjusting flange plate is eccentrically provided with a positioning hole, the intermediate gear shaft is axially and convexly provided with a cylindrical positioning block coaxial with the intermediate gear shaft, and the cylindrical positioning block is arranged in the positioning hole.
And a locking structure is also arranged between the intermediate gear shaft and the adjusting flange plate.
The adjusting flange plate is arranged on the machine body, a positioning structure is arranged between the adjusting flange plate and the machine body, and the positioning structure comprises a convex spigot arranged on the adjusting flange plate and a concave spigot arranged on the machine body and matched with the convex spigot.
The lubricating oil channel comprises an axial oil channel and a radial oil channel which are communicated, the axial oil channel axially extends along the axis of the intermediate gear shaft and penetrates through the cylindrical positioning block, a machine body oil channel hole is formed in the concave spigot, and the axial oil channel is communicated with the machine body oil channel hole; the radial oil passage extends in the radial direction of the intermediate gear shaft and penetrates through the intermediate gear shaft.
An end face flange plate is arranged at one end, far away from the adjusting flange plate, of the intermediate gear shaft, and an installation space for installing the intermediate gear is formed between the end face flange plate and the adjusting flange plate.
By adopting the technical scheme, the beneficial effects of the utility model are that:
the utility model provides a tooth side clearance adjustment structure, owing to be provided with the regulation ring flange that is used for being connected with the organism, and be provided with between regulation ring flange and the organism and rotate locking structure, intermediate gear axle eccentric settings is on the regulation ring flange, when using, need not to change spare part, only through rotate connect on the organism the regulation ring flange can reach the purpose of adjusting a set of gear tooth side clearance of meshing, compare with prior art, the utility model discloses tooth side clearance adjustment structure simple structure, the manufacturability is good, has avoided increasing supplementary adjusting device or has relapseed bad influence that dismouting adjustment etc. caused to equipment, has solved the not good problem of adjusting of a set of gear tooth side clearance of meshing, has improved work efficiency.
Drawings
Fig. 1 is a schematic split view of a backlash adjustment structure of the present invention;
FIG. 2 is a schematic view of the connection between the intermediate gear shaft and the adjusting flange in the backlash adjusting structure of the present invention;
3 FIG. 3 3 3 is 3 a 3 cross 3- 3 sectional 3 view 3 A 3- 3 A 3 of 3 FIG. 3 2 3; 3
FIG. 4 is a schematic view of a portion of the structure of FIG. 2 taken in cross-section B-B;
in the figure: 1-machine body, 11-locking hole, 12-female spigot, 13-machine body oil channel hole, 2-intermediate gear shaft, 21-cylindrical positioning block, 22-mounting hole, 23-axial oil channel, 24-radial oil channel, 25-end flange, 3-intermediate gear, 4-adjusting flange, 41-adjusting hole, 42-positioning hole, 43-locking hole, 44-male spigot, 5-locking piece, 6-locking piece and 7-gear.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As shown in fig. 1 to 4, the backlash adjusting structure includes an intermediate gear shaft 2, and further includes an adjusting flange 4 for connecting with the machine body 1, a rotation locking structure is provided between the adjusting flange 4 and the machine body 1, and the intermediate gear shaft 2 is eccentrically disposed on the adjusting flange 4.
As shown in fig. 1 to 3, the rotation locking structure includes a locking hole 11 formed in the machine body 1, an adjusting hole 41 formed in the adjusting flange 4, and a locking member 5 connected to the locking hole 11 through the adjusting hole 41, wherein the adjusting hole 41 extends circumferentially around the axis of the adjusting flange 4. In this embodiment, the intermediate gear 3 is sleeved on the intermediate gear shaft 2, the intermediate gear 3 is in meshing transmission with the gear 7, and the optimal position of the intermediate gear shaft 2 is found by rotating the adjusting flange plate 4, so that the purpose of adjusting the tooth side gap between the intermediate gear 3 and the gear 7 is achieved, and then the adjusting flange plate 4 is locked and fixed with the machine body 1 through the locking member 5. The locking hole 11 in this embodiment is the screw hole, and retaining member 5 is hexagonal flange face bolt, and regulation hole 41 is provided with four, and four regulation holes 41 use the axis of adjusting flange 4 as the circular array of center pin, and in practical application, do not injectd the quantity of adjusting hole 41, the designer can set up according to the demand by oneself, and this embodiment does not do the restriction to this.
As shown in fig. 1, 3 and 4, the adjusting flange 4 is eccentrically provided with a positioning hole 42, the intermediate gear shaft 2 is axially provided with a cylindrical positioning block 21 which is coaxial with the intermediate gear shaft 2 in a protruding manner, and the cylindrical positioning block 21 is arranged in the positioning hole 42. The eccentric positioning of the intermediate gear shaft 2 on the adjusting flange plate 4 is realized through the matching of the positioning hole 42 and the cylindrical positioning block 21.
As shown in fig. 1 to 3, a locking structure is further disposed between the intermediate gear shaft 2 and the adjusting flange 4, the locking structure includes a mounting hole 22 disposed on the intermediate gear shaft 2, a locking hole 43 disposed on the adjusting flange 4, and a locking member 6 passing through the mounting hole 22 and connected to the locking hole 43, and the stability of the connection between the intermediate gear shaft 2 and the adjusting flange 4 is further enhanced by the locking of the locking structure. The mounting holes 22 in this embodiment are preferably counter-bored holes, the locking holes 43 are threaded holes, and the locking members 6 are preferably hex flange face bolts.
As shown in fig. 3, a positioning structure is arranged between the adjusting flange 4 and the machine body 1, and the positioning structure comprises a male spigot 44 arranged on the adjusting flange 4 and a female spigot 12 arranged on the machine body 1 and matched with the male spigot 44. In practical applications, the male end 44 may be disposed on the machine body 1, and the female end 12 may be disposed on the adjusting flange 4, which is not limited in this embodiment.
As shown in fig. 1, 3 and 4, the intermediate gear shaft 2 is provided with a lubricating oil passage, the lubricating oil passage comprises an axial oil passage 23 and a radial oil passage 24 which are communicated, the axial oil passage 23 extends axially along the axis of the intermediate gear shaft 2 and penetrates through the cylindrical positioning block 21, an organism oil passage hole 13 is arranged in the female spigot 12, and the axial oil passage 23 is communicated with the organism oil passage hole 13; the radial oil passage 24 extends in the radial direction of the intermediate gear shaft 2 and penetrates the intermediate gear shaft 2. The lubricating oil flows into the inner cavity of the positioning hole 42 through the body oil passage hole 13, and then sequentially passes through the axial oil passage 23 and the radial oil passage 24 to lubricate the intermediate gear shaft 2 and the intermediate gear 3.
As shown in fig. 1, 3 and 4, an end flange 25 is provided at an end of the intermediate gear shaft 2 away from the adjusting flange 4, an installation space for installing the intermediate gear 3 is formed between the end flange 25 and the adjusting flange 4, and the intermediate gear 3 is located in the installation space between the end flange 25 and the adjusting flange 4. Because the thrust surfaces of the intermediate gear 3 are the end face flange 25 and the adjusting flange 4, the end face flange 25 and the adjusting flange 4 are convenient to carry out heat treatment.
In the operation process of the equipment, if the gear side clearance between the gear 7 and the intermediate gear 3 needs to be adjusted, the adjusting flange plate 4 connected to the machine body 1 can be rotated, the intermediate gear shaft 2 is driven to rotate through the adjusting flange plate 4, and then the intermediate gear 3 sleeved on the intermediate gear shaft 2 is driven to rotate, so that the purpose of adjusting the gear side clearance between the gear 7 and the intermediate gear 3 is achieved.
Therefore, the utility model discloses the flank clearance is adjusted simple structure, and the manufacturability is good, and is with low costs, has solved the problem of the good adjustment in a set of gear flank clearance of engaged with, has improved work efficiency.
The present invention is not limited to the above specific embodiments, and those skilled in the art can make various changes without the labor of creation from the above conception, which falls within the protection scope of the present invention.
Claims (7)
1. The tooth side clearance adjusting structure comprises an intermediate gear shaft and is characterized by further comprising an adjusting flange plate connected with the machine body, a rotating locking structure is arranged between the adjusting flange plate and the machine body, and the intermediate gear shaft is eccentrically arranged on the adjusting flange plate.
2. The backlash adjustment mechanism as claimed in claim 1, wherein the rotary locking mechanism includes a locking hole provided on the housing, an adjusting hole provided on the adjusting flange, and a locking member connected to the locking hole through the adjusting hole, the adjusting hole extending circumferentially around an axis of the adjusting flange as a central axis.
3. The backlash adjusting structure as claimed in claim 1, wherein the adjusting flange is eccentrically provided with a positioning hole, the intermediate gear shaft is axially and convexly provided with a cylindrical positioning block coaxial with the intermediate gear shaft, and the cylindrical positioning block is disposed in the positioning hole.
4. The backlash adjustment mechanism as claimed in claim 3, wherein a locking structure is further provided between the intermediate gear shaft and the adjustment flange.
5. The backlash adjustment structure as claimed in claim 3, wherein a positioning structure is provided between the adjusting flange and the housing, and the positioning structure includes a male spigot provided on the adjusting flange and a female spigot provided on the housing and adapted to the male spigot.
6. The backlash adjustment structure as claimed in claim 5, wherein the intermediate gear shaft is provided with a lubricating oil passage including an axial oil passage and a radial oil passage that are communicated with each other, the axial oil passage extending axially along an axis of the intermediate gear shaft and penetrating through the cylindrical positioning block, the female spigot being provided therein with a body oil passage hole, the axial oil passage being communicated with the body oil passage hole; the radial oil passage extends in the radial direction of the intermediate gear shaft and penetrates through the intermediate gear shaft.
7. The backlash adjustment structure according to any one of claims 1 to 6, wherein an end face flange is provided at an end of the intermediate gear shaft remote from the adjusting flange, and an installation space for installing the intermediate gear is formed between the end face flange and the adjusting flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921601889.3U CN210661314U (en) | 2019-09-24 | 2019-09-24 | Backlash adjusting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921601889.3U CN210661314U (en) | 2019-09-24 | 2019-09-24 | Backlash adjusting structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210661314U true CN210661314U (en) | 2020-06-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921601889.3U Active CN210661314U (en) | 2019-09-24 | 2019-09-24 | Backlash adjusting structure |
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| Country | Link |
|---|---|
| CN (1) | CN210661314U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114856835A (en) * | 2022-05-30 | 2022-08-05 | 淄柴机器有限公司 | Marine diesel engine oil supply timing adjustment transmission device and marine diesel engine |
-
2019
- 2019-09-24 CN CN201921601889.3U patent/CN210661314U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114856835A (en) * | 2022-05-30 | 2022-08-05 | 淄柴机器有限公司 | Marine diesel engine oil supply timing adjustment transmission device and marine diesel engine |
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