CN210318425U - Gear shifting gear limiting structure convenient to mount - Google Patents
Gear shifting gear limiting structure convenient to mount Download PDFInfo
- Publication number
- CN210318425U CN210318425U CN201921160826.9U CN201921160826U CN210318425U CN 210318425 U CN210318425 U CN 210318425U CN 201921160826 U CN201921160826 U CN 201921160826U CN 210318425 U CN210318425 U CN 210318425U
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- gear
- hole
- gear shifting
- spacing
- screw
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Abstract
The utility model provides a gear shifting gear limit structure easy to assemble, includes variable speed shaft, gear shifting gear, and gear shifting gear inner wall is opened there are idle groove and the groove of putting into gear, and it has spacing hole to open on the arbitrary clearance of the spline of the relative both sides on the variable speed shaft that corresponds the idle groove position, is equipped with spring and spacing steel ball in the spacing hole, gear shifting gear on open and to have the screw through-hole, wherein be equipped with matched with screw with it. When installing spring and spacing steel ball in spacing hole, only need with the spacing hole alignment shift gear on the gear shift gear with the epaxial spacing hole of variable speed when assembling shift gear and change shaft, then can pack into the spring in proper order, spacing steel ball pack into the screw at last can, when dismantling shift gear and change shaft pull out, then screw out can take out spacing steel ball and spring, need not to install spacing steel ball and spring at narrow and small shift gear hole within a definite time, can improve the efficiency of earlier stage installation and later stage maintenance shift gear greatly, and the popularization and application value has.
Description
Technical Field
The utility model belongs to the technical field of mechanical gear shifting mechanism technique and specifically relates to a gear shifting gear limit structure easy to assemble.
Background
In the mechanical gear shifting mechanism, when a speed changing shaft in a gearbox is installed along the vertical direction, the weight of the gear shifting gear can be always pressed on a shifting fork device for shifting the gear shifting gear, a plurality of holes are formed in proper positions of a spline groove of the speed changing shaft in the prior art, a spring and a limiting steel ball are installed in the holes, and two grooves (namely an idle groove and a hanging groove) are formed in proper positions of a spline inner hole of the gear shifting gear.
The gear shifting gear structure with the limiting device has the following working principle: when the gear shifting gear is in a neutral position, the limiting steel ball is propped by the spring and clamped in a neutral groove of the gear shifting gear, pressure changed by the weight of the gear shifting gear can be completely pressed on the limiting steel ball, the shifting fork device cannot receive the pressure changed by the weight of the gear shifting gear, and the gear shifting gear cannot slide up and down without the action of external force.
When rotatory declutch shift shaft, the revolving force transmits the shift fork through the declutch shift shaft, transmit shift round pin axle and gear shift bearing again through the shift fork on, gear shift bearing withstands gear shift gear upward movement, when the ascending power of gear shift gear is greater than the tension of spring, spacing steel ball can be pressed into the epaxial downthehole of variable speed, when gear shift gear meshes with the fixed gear completely, spacing steel ball can be under the effect of spring tension, block to gear shift gear's the groove of hanging, stop rotatory declutch shift shaft, accomplish the action of hanging gear. At this time, the pressure changed by the weight of the gear shifting gear is still completely pressed on the limiting steel ball, and the shifting fork device is not subjected to the pressure changed by the weight of the gear shifting gear.
Although the gear shifting gear structure with the limiting device solves the problem that the weight of the gear shifting gear can be always pressed on a shifting fork device for shifting the gear shifting gear, and can smoothly complete gear shifting action, the structure has the problem of inconvenient installation. During installation, the limiting steel balls on two sides are required to be pressed simultaneously so that the limiting steel balls cannot protrude out of the bottom diameter arc surface of the spline groove of the speed change shaft, and the limiting steel balls can be smoothly installed in the inner hole of the spline groove of the gear shift gear; if the retainer balls or springs need to be replaced after a longer period of time, it is more difficult to replace both parts in the transmission.
Disclosure of Invention
The utility model aims at overcoming the not enough of prior art, and provide a gear shifting gear limit structure easy to assemble.
The technical scheme of the utility model is that: the utility model provides a gear shifting gear limit structure easy to assemble, including change shaft, gear shifting gear, shift fork control gear shifting gear along change shaft axial displacement with matched with fixed gear engagement, separation, the radial division of gear shifting gear inner wall corresponding neutral gear position has a round idle groove, the radial division of position corresponding to putting into gear has a round groove, it has spacing hole to open on the arbitrary clearance of the spline of the epaxial relative both sides of change gear that corresponds neutral gear position, be equipped with spring and spacing steel ball from inside to outside in the spacing hole, characterized by, gear shifting gear on correspond the position of gear shifting shaft idle gear time spacing hole and open threaded through hole, wherein be equipped with matched with screw with it.
The further scheme is as follows: and a plurality of limiting holes with opposite positions are formed in the gaps of the splines on the speed change shaft according to the number of the gaps of the splines.
Further, the method comprises the following steps: the length of the screw is smaller than that of the thread through hole, and the tail end of the screw does not exceed the cambered surface of the inner wall of the gear shifting gear.
Further, the method comprises the following steps: the axis of the limiting hole is perpendicular to the central axis of the speed changing shaft.
The utility model adopts the above technical scheme: when installing spring and spacing steel ball in spacing hole, only need with the spacing hole alignment shift gear on the gear shift gear with the epaxial spacing hole of variable speed when assembling shift gear and change shaft, then can pack into the spring in proper order, spacing steel ball pack into the screw at last can, when dismantling shift gear and change shaft pull out, then screw out can take out spacing steel ball and spring, need not to install spacing steel ball and spring at narrow and small shift gear hole within a definite time, can improve the efficiency of earlier stage installation and later stage maintenance shift gear greatly, and the popularization and application value has.
Drawings
FIG. 1 is a schematic view of a prior art neutral configuration;
FIG. 2 is a schematic view of a prior art gear engagement configuration;
FIG. 3 is a cross-sectional view A-A of FIG. 1;
FIG. 4 is a schematic view of the neutral position structure of the present invention;
fig. 5 is a schematic view of the structure of the gear engaging structure of the present invention;
fig. 6 is a sectional view a-a of fig. 4.
Detailed Description
The invention will be further described with reference to the following drawings and specific embodiments:
as shown in the figure, the gear shifting gear limiting structure convenient to install comprises a speed changing shaft 3, a gear shifting gear 1 and a shifting fork 4, wherein two ends of the shifting fork 4 are connected with a shifting fork pin shaft 9 through nuts 10, the shifting fork pin shaft 9 is movably connected with the outer wall of the gear shifting gear 1 through a shifting fork bearing 8, the shifting fork shaft 5 at the tail of the shifting fork 4 is rotated to control the gear shifting gear 1 to move axially along the speed changing shaft 3 to be meshed with and separated from a matched fixed gear 2, a circle of idle stop groove 19 is radially formed in the inner wall of the gear shifting gear 1 corresponding to an idle stop position, a circle of hanging stop groove 18 is radially formed in the corresponding hanging stop position, a limiting hole 20 is formed in any gap of splines on two opposite sides on the speed changing shaft 3 corresponding to the idle stop groove 19, a spring 12 and a limiting steel ball 11 are arranged in the limiting hole 20 from inside to outside, a threaded through hole 21 is formed in the position, corresponding to the idle stop hole 20, on, in which screws 13 are provided for cooperation therewith.
Further, the method comprises the following steps: and a plurality of limiting holes 20 with opposite positions are formed in the gaps of the splines on the speed change shaft 3 according to the number of the gaps of the splines.
Further, the method comprises the following steps: the length of the screw 13 is smaller than that of the threaded through hole 21, and the tail end of the inner side of the screw 13 does not exceed the inner wall cambered surface of the gear shifting gear 1.
Further, the method comprises the following steps: the axis of the limiting hole 20 is perpendicular to the central axis of the speed changing shaft 3.
Claims (5)
1. The utility model provides a gear shifting gear limit structure easy to assemble, including change shaft, gear shifting gear, shift fork control gear shifting gear along change shaft axial displacement with matched with fixed gear engagement, separation, the radial division of gear shifting gear inner wall corresponding neutral gear position has a round idle groove, the radial division of position corresponding to putting into gear has a round groove, it has spacing hole to open on the arbitrary clearance of the spline of the epaxial relative both sides of change gear that corresponds neutral gear position, be equipped with spring and spacing steel ball from inside to outside in the spacing hole, characterized by, gear shifting gear on correspond the position of gear shifting shaft idle gear time spacing hole and open threaded through hole, wherein be equipped with matched with screw with it.
2. The easy-to-install gear shifting gear limiting structure of claim 1, wherein: and a plurality of limiting holes with opposite positions are formed in the gaps of the splines on the speed change shaft according to the number of the gaps of the splines.
3. The easy-to-install gearshift gear position limiting structure of claim 1 or 2, wherein: the length of the screw is smaller than that of the thread through hole, and the tail end of the screw does not exceed the cambered surface of the inner wall of the gear shifting gear.
4. The easy-to-install gearshift gear position limiting structure of claim 1 or 2, wherein: the axis of the limiting hole is perpendicular to the central axis of the speed changing shaft.
5. The easy-to-install gear shifting gear limiting structure of claim 3, wherein: the axis of the limiting hole is perpendicular to the central axis of the speed changing shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921160826.9U CN210318425U (en) | 2019-07-23 | 2019-07-23 | Gear shifting gear limiting structure convenient to mount |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921160826.9U CN210318425U (en) | 2019-07-23 | 2019-07-23 | Gear shifting gear limiting structure convenient to mount |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210318425U true CN210318425U (en) | 2020-04-14 |
Family
ID=70125094
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921160826.9U Active CN210318425U (en) | 2019-07-23 | 2019-07-23 | Gear shifting gear limiting structure convenient to mount |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210318425U (en) |
-
2019
- 2019-07-23 CN CN201921160826.9U patent/CN210318425U/en active Active
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