CN209309295U - Bevel gear gap-eliminating structure - Google Patents
Bevel gear gap-eliminating structure Download PDFInfo
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- CN209309295U CN209309295U CN201821811986.0U CN201821811986U CN209309295U CN 209309295 U CN209309295 U CN 209309295U CN 201821811986 U CN201821811986 U CN 201821811986U CN 209309295 U CN209309295 U CN 209309295U
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- bevel gear
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- bearing
- transmission shaft
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Abstract
A kind of bevel gear gap-eliminating structure, including shell, the first transmission shaft, second driving shaft, first bevel gear and second bevel gear；First transmission shaft and second driving shaft are rotatablely arranged at shell respectively, and the axis of the first transmission shaft and the axis of second driving shaft are mutually perpendicular to；First bevel gear is connect with the first transmission axis connection, second bevel gear with second driving shaft, and first bevel gear and second bevel gear are intermeshed；Wherein, the first transmission shaft is set to shell in a manner of axially displaceable, and second driving shaft is set to shell in a manner of being axially fixed；Bevel gear gap-eliminating structure includes helical fastener and spiral moving member；Helical fastener is removably secured with shell and connect；Spiral moving member is connect with helical fastener spiral, and spiral moving member is able to drive the first transmission shaft when relative to helical fastener helical rotation and is axially moveable.The utility model is easily operated, and the bevel gear gap-eliminating structure for the back lash that can be accurately controlled between bevel gear.
Description
Technical field
The utility model relates to a kind of bevel gear gap-eliminating structures.
Background technique
Six joint drives of industrial robot are mainly divided to two kinds by the position of motor, and one is motor direct-connected speed reducers to drive
There is limited space for medium and small robot in dynamic end, this structure；Another kind is motor postposition, passes through a system
The drive mechanisms of column drives end.The drive mechanism of robot usually needs to use bevel gear, in order to guarantee the biography of bevel gear
Dynamic effect, needs to adjust the back lash of bevel gear.The mode of the back lash of existing adjustment bevel gear mainly has washer tune
The adjustment of whole and spring, the mode that washer adjusts bevel gear back lash are mainly come by using washer with different thickness real
It is existing, repeated disassembled and assembled is needed, it is cumbersome；The reaction force that the mode of the whole bevel gear back lash of spring relies primarily on spring comes real
It is existing, and the factors such as the reaction force of spring and the degree of aging of spring, environment temperature are related, it is difficult between realization is accurately controlled
Gap.
Summary of the invention
That the technical problem to be solved by the utility model is to provide a kind of structures is simple, easily operated, can be accurately
Control the bevel gear gap-eliminating structure of the back lash between bevel gear.
In order to solve the above technical problems, the bevel gear gap-eliminating structure of the utility model embodiment includes shell, the first transmission
Axis, second driving shaft, first bevel gear and second bevel gear；First transmission shaft and second driving shaft are rotatablely arranged at respectively
Shell, the axis of the first transmission shaft and the axis of second driving shaft are mutually perpendicular to；First bevel gear and the first transmission axis connection, the
Two bevel gears connect with second driving shaft, and first bevel gear and second bevel gear are intermeshed；Wherein, the first transmission shaft is with can edge
The mode of axial movement is set to shell, and second driving shaft is set to shell in a manner of being axially fixed；Bevel gear disappears gap knot
Structure includes helical fastener and spiral moving member；Helical fastener is removably secured with shell and connect；Spiral moving member and spiral shell
The connection of fixing piece spiral is revolved, spiral moving member is able to drive the first transmission shaft along axis when relative to helical fastener helical rotation
To movement.
Due to the utility model use more than technical solution, generate technical effect be apparent that
The bevel gear gap-eliminating structure of the utility model embodiment can drive the first transmission shaft by rotating spiral moving member
And first bevel gear linear movement, the step-less adjustment to the back lash of bevel gear is realized, is not only simple in structure, is not needed
Repeated disassembled and assembled, more convenient operation, and the back lash that can be precisely controlled between bevel gear, will not be severe because of extraneous operating condition
And generate variation.
Detailed description of the invention
Fig. 1 shows the diagrammatic cross-section of the bevel gear gap-eliminating structure according to an embodiment of the present invention.
Specific embodiment
The utility model is described in detail in the following with reference to the drawings and specific embodiments.
Fig. 1 shows the diagrammatic cross-section of the bevel gear gap-eliminating structure according to the utility model embodiment.Referring to Fig. 1,
According to the bevel gear gap-eliminating structure of the utility model embodiment, including shell 1, the first transmission shaft 21, second driving shaft 22, first
Bevel gear 31, second bevel gear 32, helical fastener 41 and spiral moving member 42.
First transmission shaft 21 and second driving shaft 22 are rotatablely arranged at shell 1, the axis of the first transmission shaft 21 respectively
It is mutually perpendicular to the axis of second driving shaft 22.In the present embodiment, the axis direction of the first transmission shaft 21 is vertical direction, the
The axis direction of two transmission shafts 22 is horizontal direction.Wherein, the first transmission shaft 21 is set to shell in a manner of axially displaceable
Body 1, second driving shaft 22 are set to shell 1 in a manner of being axially fixed.
First bevel gear 31 is connect with the first transmission shaft 21, and second bevel gear 32 is connect with second driving shaft 22, the first cone
Gear 31 and second bevel gear 32 are intermeshed.
Helical fastener 41 is removably secured with shell 1 and connect；Spiral moving member 42 and 41 spiral of helical fastener connect
It connecing, spiral moving member 42 is able to drive the first transmission shaft 21 when relative to 41 helical rotation of helical fastener and is axially moveable,
So as to adjust the back lash between first bevel gear and second bevel gear.
In the present embodiment, helical fastener 41 is spiral fixing sleeve, and spiral moving member 42 is spiral movable sleeving.Spiral is moved
Moving part 42 is detachably connected by multiple screws 91 with helical fastener 41.The inner peripheral surface of spiral fixing sleeve 41 is equipped with interior spiral shell
Line, the outer peripheral surface of spiral movable sleeving 42 are equipped with the external screw thread to match with above-mentioned internal screw thread.Shell 1 is equipped with fixed sets of holes 11, spiral shell
Rotation fixing sleeve 41 penetrates fixed sets of holes 11, and spiral fixing sleeve 41 is detachable by multiple screw (not shown)s and shell 1
Ground is fixedly connected.Spiral movable sleeving 42 penetrates the inner hole of spiral fixing sleeve 41, and the outer peripheral surface of spiral movable sleeving 42 and spiral are solid
Surely the inner circumferential surface helix connection covered.First transmission shaft 21 passes through the inner hole of spiral movable sleeving 42, and the first transmission shaft 21 is arranged with the
One bearing 51 and second bearing 52, first bearing 51 are located at the top of second bearing 52.Spiral movable sleeving 42, which is equipped with, is connected to the
First stopper section 421 of one bearing, 51 lower end surface and the 4th stopper section 424 for being connected to 52 upper surface of second bearing.First transmission
Axis 21, which is equipped with, to be connected to the second stopper section 212 of 51 upper surface of first bearing and is connected to the third of 52 lower end surface of second bearing
Stopper section 213.
Further, the first stopper section 421 and the 4th stopper section 424 are respectively the inner hole hole for being set to spiral movable sleeving 42
The ring-shaped step of wall.Second stopper section 212 is the ring-shaped step for being set to the side wall of the first transmission shaft 21, third stopper section 213
Lower end for pressure cap, the pressure cap and the first transmission shaft 21 is detachably connected.In example in figure, pressure cap and the first transmission shaft
21 lower end is connected with each other by screw 92.
In the present embodiment, shell 1 is equipped with axis hole 12, and second driving shaft 22 passes through axis hole 12.Second driving shaft 22 is arranged
There are 3rd bearing 53, fourth bearing 54 and washer 6.3rd bearing 53 and fourth bearing 54 are set in axis hole 12.Second cone
Gear 32 is set to one end of second driving shaft 12.One end of washer 6 against second bevel gear 32, the other end of washer 6 against
The first end face of 3rd bearing 53, the first end face of the second end face of 3rd bearing 53 against fourth bearing 54.Shell 1 is equipped with and supports
It is against the 5th stopper section 125 of the first end face of 3rd bearing 53 and is resisted against the 6th backstop of the second end face of fourth bearing 54
Portion 126.The outer peripheral surface of second driving shaft 22 is equipped with the 7th stopper section 227 for being resisted against the second end face of fourth bearing 54.In Fig. 1
Example in, the first end face and second end face of 3rd bearing 53 are respectively the left side and right side of 3rd bearing, the 4th axis
Hold 54 first end face and second end face be respectively fourth bearing left side and right side.
Further, the 5th stopper section 125 is made of muti-piece gasket, which passes through screw 93 and axis respectively
Housing parts around hole 12 are connected.6th stopper section 126 is the ring-shaped step for being set to shaft hole inner wall.7th stopper section 227
For the ring-shaped step for being set to 22 side of second driving shaft.
In the present embodiment, first bevel gear 31 is set to the upper end of the first transmission shaft 21, and integrally with the first transmission shaft 21
Molding, thus the step of reducing the quantity of part, reducing assembling.Second bevel gear 32 and second driving shaft 22 are removably
Connection.In example in figure, second bevel gear 32 is connect with second driving shaft 22 by screw 94.
When being applied to robot according to the bevel gear gap-eliminating structure of the utility model embodiment, shell 1 is the pass of robot
Cabinet is saved, which includes box-like body 1a and the cover in the end cap 1b of the side box-like body 1a.First transmission shaft 21 is made
For power input shaft, it is rotatablely arranged at box-like body 1a；Second driving shaft 22 is used as power output shaft, can be rotatably set
In end cap 1b.
When back lash between first bevel gear 31 to be adjusted and second bevel gear 32, it is mobile to rotate clockwise spiral
Part 42, spiral moving member 42 will push the first transmission shaft 21 and first bevel gear 31 moves linearly upwards, until the first cone tooth
Helical member 3, is then locked with screw 91 and is fixed in spiral by wheel 31 and the at a fully engaged no back lash of second bevel gear 32
On part 41.When power passes to first bevel gear 31, it can steadily and accurately be transferred to second bevel gear 32 and second driving shaft
22。
Above description is the further explanation done in conjunction with specific embodiment and attached drawing to the utility model.But this
Utility model obviously can be implemented in a variety of other methods different from this description, those skilled in the art can without prejudice to
It promoted, deduced according to actual use situation in the case where the content of the present invention, therefore, the content of above-mentioned specific embodiment
The protection scope that the utility model determines should not be limited.
Claims (10)
1. a kind of bevel gear gap-eliminating structure, including shell, the first transmission shaft, second driving shaft, first bevel gear and the second cone tooth
Wheel；First transmission shaft and the second driving shaft are rotatablely arranged at the shell, the axis of the first transmission shaft respectively
It is mutually perpendicular to the axis of second driving shaft；The first bevel gear and the first transmission axis connection, the second bevel gear and the
Two transmission axis connections, first bevel gear and second bevel gear are intermeshed；It is characterized in that, first transmission shaft is with can be along axis
It is set to the shell to mobile mode, the second driving shaft is set to the shell in a manner of being axially fixed；
The bevel gear gap-eliminating structure includes helical fastener and spiral moving member；The helical fastener and the shell can
Connection is removedly fixed；The spiral moving member is connect with the helical fastener spiral, and spiral moving member is relative to spiral
First transmission shaft is able to drive when fixing piece helical rotation to be axially moveable.
2. bevel gear gap-eliminating structure according to claim 1, which is characterized in that the axis direction of the first transmission shaft is vertical
Direction, the axis direction of the second driving shaft are horizontal direction.
3. bevel gear gap-eliminating structure according to claim 2, which is characterized in that the helical fastener is fixed for spiral
Set, the spiral moving member are spiral movable sleeving；The inner peripheral surface of spiral fixing sleeve is equipped with internal screw thread, the outer peripheral surface of spiral movable sleeving
Equipped with external screw thread matched with the internal thread；
The shell is equipped with fixed sets of holes, and the spiral fixing sleeve penetrates the fixed sets of holes；It is solid that spiral movable sleeving penetrates spiral
Surely the inner hole covered, and the outer peripheral surface of spiral movable sleeving is connect with the inner circumferential surface helix of spiral fixing sleeve；First transmission shaft is worn
The inner hole of spiral movable sleeving is crossed, the first driving sleeve is equipped with first bearing and second bearing, and first bearing is located at second bearing
Top；Spiral movable sleeving is equipped with the first stopper section for being connected to first bearing lower end surface；First transmission shaft is equipped with and is connected to first
Second stopper section of bearing upper surface and the third stopper section for being connected to second bearing lower end surface.
4. bevel gear gap-eliminating structure according to claim 3, which is characterized in that the spiral movable sleeving, which is equipped with, is connected to the
4th stopper section of two bearing upper surfaces.
5. bevel gear gap-eliminating structure according to claim 4, which is characterized in that stop first stopper section and the described 4th
Stopper is respectively the ring-shaped step for being set to the inner hole hole wall of spiral movable sleeving；
Second stopper section is the ring-shaped step for being set to the side wall of the first transmission shaft；The third stopper section is pressure cap, institute
The lower end for stating pressure cap and the first transmission shaft is detachably connected.
6. bevel gear gap-eliminating structure according to claim 2, which is characterized in that the shell be equipped with axis hole, described second
Transmission shaft passes through the axis hole；Second driving shaft is arranged with 3rd bearing, fourth bearing and washer, 3rd bearing and the 4th axis
It holds and is set in the axis hole；
The second bevel gear is set to one end of second driving shaft；One end of the washer against second bevel gear, washer
First end face of the other end against 3rd bearing, the first end face of the second end face of 3rd bearing against fourth bearing；The shell
Body, which is equipped with the 5th stopper section of the first end face for being resisted against 3rd bearing and is resisted against the 6th of the second end face of fourth bearing, to be stopped
Stopper；
The outer peripheral surface of the second driving shaft is equipped with the 7th stopper section for being resisted against the second end face of fourth bearing.
7. bevel gear gap-eliminating structure according to claim 6, which is characterized in that the 5th stopper section is by muti-piece gasket group
At the muti-piece gasket passes through screw respectively and is connected with the housing parts around the axis hole；6th stopper section is setting
In the ring-shaped step of the shaft hole inner wall；7th stopper section is the ring-shaped step for being set to second driving shaft side.
8. bevel gear gap-eliminating structure according to claim 1, which is characterized in that the spiral moving member and the spiral are solid
It is detachably connected to determine part.
9. bevel gear gap-eliminating structure according to claim 1, which is characterized in that the first bevel gear is set to described first
The upper end of transmission shaft, and be integrally formed with the first transmission shaft.
10. bevel gear gap-eliminating structure according to claim 1, which is characterized in that the shell is the joint of robot
Cabinet, the joint cabinet include box-like body and the cover in the end cap of box-like body side；
First transmission shaft is rotatablely arranged at the box-like body, and the second driving shaft is rotatablely arranged at described
End cap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821811986.0U CN209309295U (en) | 2018-11-05 | 2018-11-05 | Bevel gear gap-eliminating structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821811986.0U CN209309295U (en) | 2018-11-05 | 2018-11-05 | Bevel gear gap-eliminating structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209309295U true CN209309295U (en) | 2019-08-27 |
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ID=67672394
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821811986.0U Active CN209309295U (en) | 2018-11-05 | 2018-11-05 | Bevel gear gap-eliminating structure |
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| Country | Link |
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| CN (1) | CN209309295U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113400340A (en) * | 2021-06-24 | 2021-09-17 | 库卡机器人制造（上海）有限公司 | Gear assembly, artificial joint and robot |
| CN114321282A (en) * | 2021-12-24 | 2022-04-12 | 兰州飞行控制有限责任公司 | Space staggered spiral gear transmission mechanism |
| CN114310866A (en) * | 2022-03-10 | 2022-04-12 | 珞石（北京）科技有限公司 | Robot joint and method for adjusting gear backlash between joints |
-
2018
- 2018-11-05 CN CN201821811986.0U patent/CN209309295U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113400340A (en) * | 2021-06-24 | 2021-09-17 | 库卡机器人制造（上海）有限公司 | Gear assembly, artificial joint and robot |
| CN114321282A (en) * | 2021-12-24 | 2022-04-12 | 兰州飞行控制有限责任公司 | Space staggered spiral gear transmission mechanism |
| CN114310866A (en) * | 2022-03-10 | 2022-04-12 | 珞石（北京）科技有限公司 | Robot joint and method for adjusting gear backlash between joints |
| CN114310866B (en) * | 2022-03-10 | 2022-05-27 | 珞石（北京）科技有限公司 | Robot joint and method for adjusting gear backlash between joints |
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