CN209569300U - Intermediate adjustable gear and gear assembly - Google Patents
Intermediate adjustable gear and gear assembly Download PDFInfo
- Publication number
- CN209569300U CN209569300U CN201822010004.4U CN201822010004U CN209569300U CN 209569300 U CN209569300 U CN 209569300U CN 201822010004 U CN201822010004 U CN 201822010004U CN 209569300 U CN209569300 U CN 209569300U
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- gear
- positioning
- central axis
- intermediate adjustable
- circular groove
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Abstract
The utility model belongs to gear transmission technology field, and in particular to a kind of intermediate adjustable gear and the gear assembly equipped with the intermediate adjustable gear.Intermediate adjustable gear described in the utility model includes gear, the center of gear is equipped with central axis, gear can be rotated around the axial line of central axis, the end face of central axis is equipped with the circular groove that can run through central axis, intermediate adjustable gear further includes positioning support element, positioning support element can pass through circular groove, and gear can be swung by positioning support element along the course bearing of circular groove.By using intermediate adjustable gear described in the utility model and the gear assembly equipped with the intermediate adjustable gear, can be realized do not change intermediate adjustable gear and camshaft timing gear center away under the premise of, the effective center for adjusting intermediate adjustable gear and intermediate gear is away to realize the adjustable function of backlash.
Description
Technical field
The utility model belongs to gear transmission technology field, and in particular to a kind of intermediate adjustable gear and be equipped with can among this
Adjust the gear assembly of gear.
Background technique
For the size relation of backlash to the NVH and reliability of diesel engine, backlash is too small, and gear is be easy to cause to beat
Tooth, the failures such as locking, backlash is excessive, be easy to cause noise excessive.So backlash the design of (gear centre away from) and
Control is very important.
For overhead camshaft engine, when the parts such as installation for the first time and later period dismounting gland shim, intermediate gear and on
It is both needed to guarantee gear centre between portion's camshaft timing gear and other gears of lower part away from certain zone of reasonableness, the center is away from fair
Perhaps the margin of tolerance is (- 0.15~+0.15) mm.
An intermediate adjustable gear is arranged in existing structure between intermediate gear and top jaw axis timing gears, and in centre
An eccentric pin structure is designed on the gear shaft of adjustable gear.In installation, intermediate gear shaft can be rotated around cam pin, thus
Intermediate adjustable gear rotation is driven, achievees the purpose that adjust intermediate adjustable gear and intermediate gear center away from (i.e. backlash),
3 bolts, bolt presses intermediate gear shaft cover board are fastened after adjustment is suitable, to carry out axial limiting to gear.
Prior art disadvantage are as follows: when rotating intermediate gear shaft, the center of intermediate adjustable gear and intermediate gear is away from adjustable
It is whole to arrive reasonable value；But meanwhile with the variation of intermediate adjustable gear position, cause its center with camshaft timing gear away from hair
Changing deviates from design value.
Utility model content
The purpose of this utility model is that solution drawbacks described above and deficiency, the purpose are achieved through the following technical solutions.
The utility model proposes a kind of intermediate adjustable gears, including gear, the center of the gear
Equipped with central axis, the gear can be rotated around the axial line of the central axis, and the end face of the central axis is equipped with
The circular groove of the central axis can be run through.
Further, such as above-mentioned intermediate adjustable gear, the intermediate adjustable gear further includes positioning support element, described
Positioning support element can pass through the circular groove, and the gear can be by the positioning support element along institute
The course bearing for stating circular groove is swung.
Further, such as above-mentioned intermediate adjustable gear, the positioning support element includes that the first positioning sleeve and second are fixed
Position set, first positioning sleeve and second positioning sleeve are spaced setting in the circular groove.
Further, such as above-mentioned intermediate adjustable gear, the positioning support element further includes the first positioning bolt and the
Two positioning bolts, first positioning bolt and second positioning bolt can be each passed through first positioning sleeve and described
Second positioning sleeve, and the central axis is fixed.
Further, such as above-mentioned intermediate adjustable gear, the positioning support element further includes third positioning bolt, described
Central axis is equipped with the through-hole for matching with the third positioning bolt, and the third positioning bolt can pass through described logical
Simultaneously the central axis is fixed for hole.
Further, such as above-mentioned intermediate adjustable gear, between first positioning sleeve and the circular groove and
Clearance fit is all made of between second positioning sleeve and the circular groove.
The utility model also proposed a kind of gear assembly, including intermediate adjustable gear described above and
First gear and second gear, wherein the first gear and the second gear are passed by the intermediate adjustable gear
It is dynamic.
Further, gear assembly as described above, the corresponding axial line of the circular groove and described first
The corresponding axial line of gear is same straight line.
Further, gear assembly as described above, when the intermediate adjustable gear is moved along the circular groove
When dynamic, the center of the intermediate adjustable gear and the first gear away from numerical value remain unchanged.
Further, gear assembly as described above, the first gear be camshaft timing gear, described second
Gear is intermediate gear.
By using intermediate adjustable gear described in the utility model and the loading drive gear equipped with the intermediate adjustable gear
It sets, swings intermediate adjustable gear along the course bearing of circular groove, can be realized and do not changing intermediate adjustable gear
With camshaft timing gear center away under the premise of, the effective center for adjusting intermediate adjustable gear and intermediate gear away from, thus
Realize the adjustable function of backlash.
Detailed description of the invention
By reading the following detailed description of the preferred embodiment, various other advantages and benefits are common for this field
Technical staff will become clear.The drawings are only for the purpose of illustrating a preferred embodiment, and is not considered as practical to this
Novel limitation.And throughout the drawings, the same reference numbers will be used to refer to the same parts.
Fig. 1 is the positive structure schematic of the utility model embodiment；
Fig. 2 is the structure schematic diagram of embodiment in Fig. 1；
Fig. 3 is the configuration schematic diagram of embodiment in Fig. 1.
Each label is expressed as follows in attached drawing:
10: intermediate adjustable gear, 11: gear, 12: central axis, 121: circular groove, 131: the first positioning sleeves,
132: the second positioning sleeves, 133: the first positioning bolts, 134: the second positioning bolts, 135: third positioning bolt, 136: through-hole；
20: camshaft timing gear；
30: intermediate gear；
40: cover board.
Specific embodiment
The illustrative embodiments of the disclosure are more fully described below with reference to accompanying drawings.Although showing this public affairs in attached drawing
The illustrative embodiments opened, it being understood, however, that may be realized in various forms the disclosure without the reality that should be illustrated here
The mode of applying is limited.It is to be able to thoroughly understand the disclosure on the contrary, providing these embodiments, and can be by this public affairs
The range opened is fully disclosed to those skilled in the art.
Fig. 1 is the overall structure diagram of the utility model embodiment.Fig. 2 is the backside structure signal of embodiment in Fig. 1
Figure.Fig. 3 is the configuration schematic diagram of embodiment in Fig. 1.Gear assembly in the present embodiment includes intermediate adjustable gear
10 and first gear and second gear.Wherein, the first gear in the present embodiment is camshaft timing gear 20, second gear
For intermediate gear 30.Camshaft timing gear 20 and intermediate gear 30 are driven by intermediate adjustable gear 10.
Intermediate adjustable gear 10 in the present embodiment includes gear 11.The center of gear 11 is equipped with central axis
12, gear 10 can be rotated around the axial line of central axis 12, and the end face of central axis 12, which is equipped with, can run through central axis
Circular groove 121.
Wherein, central axis 12 is set at the center of gear 11, and bushing is equipped between gear 11 and central axis 12,
To guarantee when central axis 12 is fixed, gear 11 can be rotated around the axial line of central axis 11.
Further, the intermediate adjustable gear 10 in the present embodiment further includes positioning support element.Positioning support element energy
Enough across circular groove 121, and gear 11 can be by positioning support element along the course bearing of circular groove 121
It is swung.Specifically, positioning support element in the present embodiment includes the first positioning sleeve 131 and the second positioning sleeve 132, first
Positioning sleeve 131 and the second positioning sleeve 132 are spaced setting in circular groove 121.Positioning support element further includes the first positioning
Bolt 133 and the second positioning bolt 134.First positioning bolt 133 and the second positioning bolt 134 can be each passed through the first positioning
Set 131 and the second positioning sleeve 132, and central axis 12 is fixed.
First positioning sleeve 131 and the second positioning sleeve 132 are arranged at intervals in circular groove 121, and fixed using first
Position bolt 133 and the second positioning bolt 134 are each passed through the first positioning sleeve 131 and the second positioning sleeve 132, but do not lock, thus
Guarantee that gear 11 can be moved by positioning support element along the course bearing of circular groove 121.When centre can
After adjusting the position of gear 10 to determine, the first positioning bolt 133 and the second positioning bolt 134 are locked, thus fixed center axis 12
Position, thus the position of fixed intermediate adjustable gear 10.
Further, to guarantee that the position of central axis 12 immobilizes, positioning support element further includes third positioning bolt
135.Central axis 12 is equipped with the through-hole 136 for matching with third positioning bolt 135, and third positioning bolt 135 can be worn
It crosses through-hole 136 and central axis 12 is fixed.Wherein, the diameter dimension of through-hole 136 should be greater than third positioning bolt 135 most
Big radial dimension, so that it is adjustable to guarantee that central axis 12 is able to carry out position.
It further, is the motion profile for guaranteeing intermediate adjustable gear 10 in moving process, the first positioning sleeve 131 and circle
Clearance fit, matching relationship are all made of between arc groove 121 and between the second positioning sleeve 132 and circular groove 121
To be specially H7/h6.
Further, for guarantee the center of camshaft timing gear 20 and intermediate adjustable gear 10 away from remaining unchanged, circular arc
The corresponding axial line of connected in star 121 axial line corresponding with camshaft timing gear 20 is same straight line.That is camshaft timing
The center of gear 20 and intermediate adjustable gear 30 is away from being always 20 reference radius of camshaft timing gear and intermediate adjustable gear
The sum of 10 reference radius.
When carrying out gear assembly and backlash adjustment using the intermediate adjustable gear 10 in the present embodiment, including following step
It is rapid:
It will be in 132 fixing assembling to cylinder cap of the first positioning sleeve 131 and the second positioning sleeve.Wherein, the first positioning sleeve 131 and
The spacing of two positioning sleeves 132 should ensure that in the size range of circular groove 121.
The circular groove 121 of central axis 12 is sleeved on the first positioning sleeve 131 and the second positioning sleeve 132, thus will
Central axis 12 is connected on cylinder cap.
The gear 11 of intermediate adjustable gear 10 is sleeved on the outer ring of central axis 12 by bushing, and is answered after assembling
It can guarantee that gear 11 can be rotated around the axial line of central axis 12.
First positioning bolt 133 and the second positioning bolt 134 are inserted into 131 He of the first positioning sleeve by cover board 40 respectively
In second positioning sleeve 132, while being inserted into third positioning bolt 135.Wherein, the first positioning bolt 133, the second positioning bolt 134
With the pine of third positioning bolt 135 on cylinder cap.
Choose suitable clearance gauge according to designed backlash value, be placed in intermediate adjustable gear 10 and the intermediate gear teeth 30 it
Between.
It rotates intermediate adjustable gear 10 by the first positioning sleeve 131 and the second positioning sleeve 132 and clamps clearance gauge to complete, i.e., it is complete
Work is adjusted away from (backlash) at the center of intermediate adjustable gear 10 and the intermediate gear teeth 30.Meanwhile in intermediate adjustable gear 10
Rotation process in, center between intermediate adjustable gear 10 and camshaft timing gear 20 is away from remaining unchanged.
The first positioning bolt 133, the second positioning bolt 134 and third positioning bolt 135 are locked, and removes clearance gauge, thus
Complete the assembly of gear and the adjustment process of backlash.
By using intermediate adjustable gear described in the utility model and the loading drive gear equipped with the intermediate adjustable gear
It sets, swings intermediate adjustable gear along the course bearing of circular groove, can be realized and do not changing intermediate adjustable gear
With camshaft timing gear center away under the premise of, the effective center for adjusting intermediate adjustable gear and intermediate gear away from, thus
Realize the adjustable function of backlash.
The preferable specific embodiment of the above, only the utility model, but the protection scope of the utility model is not
It is confined to this, anyone skilled in the art within the technical scope disclosed by the utility model, can readily occur in
Change or replacement, should be covered within the scope of the utility model.Therefore, the protection scope of the utility model should be with
Subject to the scope of protection of the claims.
Claims (10)
1. a kind of intermediate adjustable gear, which is characterized in that including gear, the center of the gear is equipped with central axis,
The gear can be rotated around the axial line of the central axis, and the end face of the central axis is equipped with can be through described
The circular groove of central axis.
2. intermediate adjustable gear according to claim 1, which is characterized in that the intermediate adjustable gear further includes positioning branch
Unit is supportted, the positioning support element can pass through the circular groove, and the gear can pass through the positioning
Support unit is swung along the course bearing of the circular groove.
3. intermediate adjustable gear according to claim 2, which is characterized in that the positioning support element includes the first positioning
Set and the second positioning sleeve, first positioning sleeve and second positioning sleeve are spaced setting in the circular groove.
4. intermediate adjustable gear according to claim 3, which is characterized in that the positioning support element further includes first fixed
It is fixed that position bolt and the second positioning bolt, first positioning bolt and second positioning bolt can be each passed through described first
Position set and second positioning sleeve, and the central axis is fixed.
5. intermediate adjustable gear according to claim 4, which is characterized in that the positioning support element further includes that third is fixed
Position bolt, the central axis are equipped with the through-hole for matching with the third positioning bolt, the third positioning bolt energy
It is enough to be fixed across the through-hole and by the central axis.
6. intermediate adjustable gear according to claim 3, which is characterized in that first positioning sleeve with it is described arc-shaped recessed
Clearance fit is all made of between slot and between second positioning sleeve and the circular groove.
7. a kind of gear assembly, which is characterized in that adjustable including centre described in any one of the claims 1~6
Gear and first gear and second gear, wherein the first gear and the second gear pass through the intermediate adjustable tooth
Wheel is driven.
8. gear assembly according to claim 7, which is characterized in that the corresponding axial line of the circular groove with
The corresponding axial line of the first gear is same straight line.
9. gear assembly according to claim 8, which is characterized in that when the intermediate adjustable gear is along the circular arc
When connected in star is mobile, the center of the intermediate adjustable gear and the first gear away from numerical value remain unchanged.
10. the gear assembly according to any one of claim 7~9, which is characterized in that the first gear is convex
Wheel shaft timing gears, the second gear are intermediate gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822010004.4U CN209569300U (en) | 2018-11-30 | 2018-11-30 | Intermediate adjustable gear and gear assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822010004.4U CN209569300U (en) | 2018-11-30 | 2018-11-30 | Intermediate adjustable gear and gear assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209569300U true CN209569300U (en) | 2019-11-01 |
Family
ID=68330143
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822010004.4U Active CN209569300U (en) | 2018-11-30 | 2018-11-30 | Intermediate adjustable gear and gear assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209569300U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112123367A (en) * | 2020-09-12 | 2020-12-25 | 埃夫特智能装备股份有限公司 | Wrist structure of robot and robot |
| CN112815080A (en) * | 2021-01-04 | 2021-05-18 | 东风汽车股份有限公司 | Gear clearance control method |
-
2018
- 2018-11-30 CN CN201822010004.4U patent/CN209569300U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112123367A (en) * | 2020-09-12 | 2020-12-25 | 埃夫特智能装备股份有限公司 | Wrist structure of robot and robot |
| CN112123367B (en) * | 2020-09-12 | 2023-12-15 | 埃夫特智能装备股份有限公司 | Robot wrist structure and robot |
| CN112815080A (en) * | 2021-01-04 | 2021-05-18 | 东风汽车股份有限公司 | Gear clearance control method |
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