CN209262227U - A kind of two-gear transmission shifting system - Google Patents
A kind of two-gear transmission shifting system Download PDFInfo
- Publication number
- CN209262227U CN209262227U CN201821559924.5U CN201821559924U CN209262227U CN 209262227 U CN209262227 U CN 209262227U CN 201821559924 U CN201821559924 U CN 201821559924U CN 209262227 U CN209262227 U CN 209262227U
- Authority
- CN
- China
- Prior art keywords
- shift fork
- self
- shift
- speed changer
- locking
- 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
Landscapes
- Gear-Shifting Mechanisms (AREA)
Abstract
The utility model belongs to transmission technology field, and in particular to a kind of two-gear transmission shifting system makes full use of the structural advantages of two-gear transmission, realizes succinct reliable shift.The shifting system includes speed changer front housing, speed changer rear shell, shift fork axle and shift fork, a shift fork shaft mounting hole is respectively equipped on the speed changer front housing and speed changer rear shell, shift fork axle is mounted in two shift fork shaft mounting holes and can slide axially, self-locking grooves there are three being set on the shift fork shaft part that shift fork axle is located in speed changer front housing, speed changer front housing is equipped with self-locking device compatible with three self-locking grooves, two sections of shaft shoulders are provided in shift fork axle, card slot is formed between two sections of shaft shoulders, gear shifting pulling head end is equipped with the shift shifting block with the pocket matches, shift shifting block is stirred shift fork axle and is moved forward and backward by contacting with the shaft shoulder, shift fork is fixed on the shift fork shaft part between self-locking grooves and card slot.
Description
Technical field
The utility model belongs to transmission technology field, and in particular to a kind of two-gear transmission shifting system.
Background technique
The technology path of pure electric coach is gradually directly driven onto motor EMT is added to change by pure electricity at present.Two gear pure electric vehicle speed changes
Device is greatly developed, and two-gear transmission has biggish difference, especially actuating element in configuration aspects with more gear speed transmissions.
Two gears only need three shift fork positions, save block selecting function.Therefore, actuating element can make full use of its feature, to behaviour
Vertical structure is simplified.Traditional method is exactly to do simple segmentation to the manipulation of more gear gearboxes to reduce, and cannot be made full use of
The structural advantages of two-gear transmission.Therefore need to develop a kind of shifting system dedicated for two gear gearboxes, realization succinctly may be used
By shift.
Summary of the invention
The purpose of the utility model is to overcome the deficiencies in the prior art, make full use of the structural advantages of two-gear transmission,
A kind of two-gear transmission shifting system that can be achieved succinctly reliably to shift gears is provided.
In order to complete above-mentioned purpose, the technical solution that the utility model is proposed is:
A kind of two-gear transmission shifting system, including speed changer front housing, speed changer rear shell, shift fork axle and shift fork, it is special
Place is: a shift fork shaft mounting hole is respectively equipped on the speed changer front housing and speed changer rear shell, shift fork axle is mounted on two
In a shift fork shaft mounting hole and can slide axially, set on the shift fork shaft part that shift fork axle is located in speed changer front housing there are three
Self-locking grooves, speed changer front housing are equipped with self-locking device compatible with three self-locking grooves, are provided with two sections of shaft shoulders in shift fork axle, and two
Form card slot between the section shaft shoulder, gear shifting pulling head end is equipped with the shift shifting block with the pocket matches, shift shifting block by with axis
Shoulder grafting touching is stirred shift fork axle and is moved forward and backward, and shift fork is fixed on the shift fork shaft part between self-locking grooves and card slot.
Further, the speed changer front housing is equipped with mounting hole, and the self-locking device is arranged in mounting hole, self-locking dress
Set including plug screw, self-locking spring and self-locking steel ball, self-locking steel ball one end is contacted with the self-locking grooves in shift fork axle, the other end with it is self-locking
Spring contact, self-locking spring are fixed in mounting hole by plug screw.
Further, the cross section of the card slot is circular ring shape, and the cross section for shifting block of shifting gears is semicircle, and the shift is dialled
The semicircle diameter of block port is adapted with the circular ring shape diameter of card slot.
Further, two shift fork shaft mounting holes are blind hole, are equipped with air discharge duct on the wall surface of two blind holes.
Further, shift fork is secured transverse to together by elastic cylindrical pin and shift fork axle.
Further, the self-locking grooves are ball shape structure.
Further, seal washer is equipped between the plug screw and the end face of mounting hole.
Compared with the prior art, the advantages of the utility model are:
1, when the utility model gear shifting pulling head is moved forward and backward, shift fork axle front and back is stirred by contacting with the shaft shoulder at card slot both ends
Movement, shift fork axle movement drives the shift fork being connected in shift fork axle to be moved forward and backward, to realize shift.Shift fork axle is moved forward and backward
When, the resistance of self-locking steel ball can be overcome, self-locking steel ball is contacted with different self-locking grooves, realizes front and back three positions of gear and neutral gear
It is self-locking.The structural advantages of two-gear transmission are taken full advantage of, shift is succinct reliable.
2, it is equipped with air discharge duct on the wall surface of two shift fork shaft mounting holes, keeps chamber air pressure inside and outside shift fork shaft mounting hole identical,
It can prevent shift fork shaft mounting hole inner and outer air pressure imbalance from influencing shift performance when shift fork axle is moved forward and backward.
3, shift shifting block is stirred shift fork axle and is moved forward and backward by contacting with the shaft shoulder at card slot both ends, the cross circular section of card slot
Shape, the cross section for shifting block of shifting gears are semicircle, and the diameter of the shift shifting block port is adapted with the diameter of card slot, can be prevented
Gear shifting pulling head is rotated along itself axis hole in shift process.The shift guide block being connected in shift fork axle in traditional structure is saved, is reduced
Part.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of two-gear transmission shifting system in the utility model embodiment；
Fig. 2 is the explosive view of two-gear transmission shifting system in the utility model embodiment.
In figure: 1-self-locking steel ball, 2-self-locking springs, 3-seal washers, 4-plug screws, 5-speed changer front housings, 6-dial
Fork, 7-shift fork axles, 8-elastic cylindrical pins, 9-gear shifting pulling heads, 10-speed changer rear shells, 11-shift fork shaft mounting holes, 71-
Self-locking grooves, 72-card slots, 91-shift shifting blocks, 111-air discharge ducts.
Specific embodiment
It is practical new below in conjunction with this to keep the objectives, technical solutions, and advantages of the embodiments of the present invention clearer
The technical solution in embodiment is clearly and completely described in attached drawing in type embodiment, and following embodiment is for illustrating this
Utility model, but be not intended to limit the scope of the present invention.
Referring to Fig. 1 and Fig. 2, a kind of two-gear transmission shifting system, including speed changer front housing 5, speed changer rear shell 10, shift fork
Axis 7 and shift fork 6 are respectively equipped with a shift fork shaft mounting hole 11 on the speed changer front housing 5 and speed changer rear shell 10, and two are dialled
Fork shaft mounting hole 11 is blind hole, and air discharge duct 111 is equipped on the wall surface of two blind holes, and shift fork axle 7 is mounted on two shift fork axles
In mounting hole 11 and it can slide axially.Shift fork 6 is secured transverse to together by elastic cylindrical pin 8 with shift fork axle 3.
It is set on the shift fork shaft part that shift fork axle 7 is located in speed changer front housing 5 there are three self-locking grooves 71, the self-locking grooves 71 are
Arc type structure.Speed changer front housing 5 is equipped with self-locking device compatible with three self-locking grooves 71, sets on the speed changer front housing 5
There is a mounting hole, the self-locking device is arranged in mounting hole, and self-locking device includes plug screw 4, self-locking spring 2 and self-locking steel ball 1, from
Lock 1 one end of steel ball is contacted with the self-locking grooves 71 in shift fork axle 7, and the other end and 2 Elastic Contact of self-locking spring, self-locking spring 2 pass through
Plug screw 4 is fixed in mounting hole, and seal washer 3 is equipped between plug screw 4 and the end face of mounting hole.
It is provided with two sections of shaft shoulders in shift fork axle 7, forms card slot 72 between two sections of shaft shoulders, 9 end of gear shifting pulling head is equipped with and institute
The matched shift shifting block of card slot 72 is stated, the cross section of card slot is circular ring shape, and the cross section of shift shifting block 91 is semicircle, and shift is dialled
The semicircle diameter of 91 port of block is adapted with the circular ring shape diameter of card slot 72, and shift shifting block 91 is stirred by contacting with the shaft shoulder
Fork shaft 7 moves forward and backward.
Working principle: when gear shifting pulling head 9 is moved forward and backward, by before being contacted with the shaft shoulder at 72 both ends of card slot and stirring shift fork axle 7
After move, the movement of shift fork axle 7 drives the shift fork 6 that is connected in shift fork axle 7 to be moved forward and backward, to realize shift.7 front and back of shift fork axle
When mobile, the resistance of self-locking steel ball 7 can be overcome, self-locking steel ball 7 is contacted with different self-locking grooves 71, realizes front and back gear and neutral gear
Three positions it is self-locking.
It should be noted that above-described is only preferred embodiments of the present invention, for the ordinary skill of this field
For personnel, without departing from the concept of the present invention, various modifications and improvements can be made, these all belong to
In the protection scope of the utility model.
Claims (7)
1. a kind of two-gear transmission shifting system, including speed changer front housing (5), speed changer rear shell (10), shift fork axle (7) and shift fork
(6), it is characterised in that: be respectively equipped with a shift fork shaft mounting hole in the speed changer front housing (5) and speed changer rear shell (10)
(11), shift fork axle (7) is mounted in two shift fork shaft mounting holes (11) and can slide axially, and shift fork axle (7), which is located at, to be become
It is set on shift fork shaft part in fast device front housing (5) there are three self-locking grooves (71), speed changer front housing (5) is equipped with and three self-locking grooves
(71) compatible self-locking device is provided with two sections of shaft shoulders in shift fork axle (7), forms card slot (72) between two sections of shaft shoulders, shift
Shifting block (9) end, which is equipped with, is dialled with the matched shift shifting block (91) of the card slot (72), shift shifting block (91) by contacting with the shaft shoulder
Dynamic shift fork axle (7) move forward and backward, and shift fork (6) is fixed on the shift fork shaft part between self-locking grooves (71) and card slot (72).
2. two-gear transmission shifting system according to claim 1, it is characterised in that: set on the speed changer front housing (5)
There is mounting hole, the self-locking device is arranged in mounting hole, and self-locking device includes plug screw (4), self-locking spring (2) and self-locking steel ball
(1), self-locking steel ball (1) one end is contacted with the self-locking grooves (71) on shift fork axle (7), and the other end is contacted with self-locking spring (2), self-locking
Spring (2) is fixed in mounting hole by plug screw (4).
3. two-gear transmission shifting system according to claim 1 or 2, it is characterised in that: the card slot (72) it is transversal
Face is circular ring shape, and the cross section of shift shifting block (91) is semicircle, the semicircle diameter and card of described shift shifting block (91) port
The circular ring shape diameter of slot (72) is adapted.
4. two-gear transmission shifting system according to claim 3, it is characterised in that: two shift fork shaft mounting holes (11) are equal
For blind hole, air discharge duct (111) are equipped on the wall surface of two blind holes.
5. two-gear transmission shifting system according to claim 4, it is characterised in that: shift fork (6) passes through elastic cylindrical pin
(8) it is secured transverse to together with shift fork axle (7).
6. two-gear transmission shifting system according to claim 5, it is characterised in that: the self-locking grooves (71) are ball-type
Structure.
7. two-gear transmission shifting system according to claim 2, it is characterised in that: the plug screw (4) and mounting hole
Seal washer (3) are equipped between end face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821559924.5U CN209262227U (en) | 2018-09-25 | 2018-09-25 | A kind of two-gear transmission shifting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821559924.5U CN209262227U (en) | 2018-09-25 | 2018-09-25 | A kind of two-gear transmission shifting system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209262227U true CN209262227U (en) | 2019-08-16 |
Family
ID=67553018
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821559924.5U Active CN209262227U (en) | 2018-09-25 | 2018-09-25 | A kind of two-gear transmission shifting system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209262227U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109084021A (en) * | 2018-09-25 | 2018-12-25 | 陕西法士特齿轮有限责任公司 | A kind of gear shifting of two speed transmission system |
-
2018
- 2018-09-25 CN CN201821559924.5U patent/CN209262227U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109084021A (en) * | 2018-09-25 | 2018-12-25 | 陕西法士特齿轮有限责任公司 | A kind of gear shifting of two speed transmission system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN209262227U (en) | A kind of two-gear transmission shifting system | |
| CN103759006A (en) | Internal expansion plugging device for cam shaft hole | |
| CN107654589B (en) | Two-gear intermediate shaft transmission structure and gear shifting method thereof | |
| CN107830126B (en) | Electrohydraulic control power output device | |
| CN109084021A (en) | A kind of gear shifting of two speed transmission system | |
| CN201326598Y (en) | End-face sealed manual three-position four-way reversing rotary valve | |
| CN107781360B (en) | power shift transmission system | |
| CN203098824U (en) | Gear selecting force sensing device with mistakenly-changing-to-back-gear-resistant function | |
| CN202971870U (en) | Shifting fork of transmission | |
| CN211449246U (en) | Reversing valve | |
| CN203926717U (en) | A kind of speed changer integral type oil pump | |
| CN107061791B (en) | Automobile oil tank change-over valve and operation method | |
| CN202674388U (en) | Four-way reversing valve and priority valve thereof | |
| CN202177265U (en) | Short tube throttle valve for air conditioner | |
| CN204900783U (en) | Oily mechanism is led to hemizonid C font boss | |
| CN214578421U (en) | Constant velocity universal joint | |
| CN109237018A (en) | A kind of speed changer self-locking structure | |
| CN202091485U (en) | Differential shell structure | |
| CN215524927U (en) | Novel blocking piece for detecting air tightness of front shell of transmission | |
| CN202914708U (en) | Gear shifting structure of gear box | |
| CN104791483B (en) | A kind of speed-changer operation device self-locking mechanism | |
| CN201121675Y (en) | Switching torsional spring for differential rear axle of all-terrain vehicle | |
| CN203880065U (en) | Creeper gear and gear shift mechanism installed on lateral face of transmission box of tractor | |
| CN221121306U (en) | Quick connector with two-way sealing structure | |
| CN205226284U (en) | Sliding gear |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |