CN204004222U - Automobile speed variator reverse gear synchromesh gear - Google Patents

Automobile speed variator reverse gear synchromesh gear Download PDF

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Publication number
CN204004222U
CN204004222U CN201420473929.1U CN201420473929U CN204004222U CN 204004222 U CN204004222 U CN 204004222U CN 201420473929 U CN201420473929 U CN 201420473929U CN 204004222 U CN204004222 U CN 204004222U
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CN
China
Prior art keywords
gear
shifting
reverses
boss
shifting block
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Withdrawn - After Issue
Application number
CN201420473929.1U
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Chinese (zh)
Inventor
李昌炎
黄�俊
孔文凯
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SAIC Automotive Transmission Liuzhou Co Ltd
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SAIC Automotive Transmission Liuzhou Co Ltd
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Priority to CN201420473929.1U priority Critical patent/CN204004222U/en
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Abstract

The utility model discloses a kind of automobile speed variator reverse gear synchromesh gear, relate to field of automobile, include output shaft, input shaft, the idler shaft that reverses gear, gear reverse declutch shift shaft, five gear declutch shift shafts, end is provided with the shifting axle of changing lever, and changes lever and has reverse gear shifting block and the forward gear shifting block that is located at shaft sleeve part front end; Shaft sleeve part tail end in the shifting block that reverses gear is provided with presynchronization shifting block; Shifting axle is installed with shifting cover for seat and by torsion spring, is moved the plectrum that reverses gear is housed between the two in the rear of changing lever, the plectrum that reverses gear has the angle of dialling and dials gear boss; Five gear shifting blocks have the extension boss stretching out to shifting axle side, have curve bath and by this curve bath and the shaft sleeve part phase clamping of changing lever on extension boss; Five gear shifting blocks are provided with the shifting block boss rearward stretching out, and shifting block boss is provided with guiding surface in nearly shifting axle one side.Compared to prior art, the utility model can solve reversing gear of existing manual-gear vehicle put into gear abnormal sound and the problem of irregularity of putting into gear.

Description

Automobile speed variator reverse gear synchromesh gear
Technical field
The utility model relates to field of automobile, especially a kind of gearshift that reverses gear for manual-gear vehicle speed changer.
Background technique
Growing along with automobile industry, client has also had higher requirement to the performance of vehicle, and it is one of problem of being concerned about of client that the smoothness while wherein putting into gear is especially hung smoothness while reversing gear.Traditional manual transmission is hung and is reversed gear after vehicle is brought to a halt, driver Chang Hui hears that gear beats the sound of tooth, cause client's complaint, time has been grown and also can make the life-span of vehicle greatly reduce, analyze its reason, mainly because manual transmission cost is lower, the part of reversing gear does not substantially all have synchronizer mechanisms, and employing is with the shifting slide gear of Mei Jiao, after such structural requirement vehicle is brought to a halt, treating that transmission input shaft stops operating could smooth-going extension to reverse gear, and common driver is after brake, reversing moves in the process of storehouse especially repeatedly, usually hang fast into reversing gear, cause the abnormal sound that reverses gear.
Model utility content
The problem that the utility model solves is to provide a kind of automobile speed variator reverse gear synchromesh gear that can realize five gear presynchronization, to solve reversing gear of existing manual-gear vehicle put into gear abnormal sound and the problem of irregularity of putting into gear.
In order to address the above problem, the technical solution adopted in the utility model is: this automobile speed variator reverse gear synchromesh gear comprises that movable sheath is housed successively has the five gear synchronous gear hubs, five of five gear synchronous gear sleeves to keep off the output shaft that synchronizing tooth rings, five keep off driven gears and the driven gear that reverses gear; Be provided with successively the five gear driving gears and the input shaft of driving gear of reversing gear that are connected with a joggle with described five gear driven gears; The idler shaft that reverses gear of the idle pulley that reverses gear is equipped with in activity; The gear reverse declutch shift shaft of dialling retaining groove mouth that is provided with of back fork is housed, in the circular groove of the idle pulley bottom of reversing gear described in described back fork is installed on; Be provided with five gear declutch shift shafts of five gear shifting blocks, at five gear declutch shift shaft tops, be provided with the five gear wishbone levers with described five gear synchronous gear sleeve phase clampings by shift fork pin; Front end is provided with the shifting axle of changing lever, described in reverse gear shifting block and the forward gear shifting block of changing lever and thering is shaft sleeve part and being located in opposite directions its shaft sleeve part front end; Described shaft sleeve part tail end in described shifting block one side of reversing gear is provided with presynchronization shifting block; Described shifting axle is installed with shifting cover for seat and by torsion spring activity, the plectrum that reverses gear is housed between the two in the described rear of changing lever, described in reverse gear plectrum have be located at described forward gear shifting block one side dial angle and be located at described in reverse gear shifting block one side dial gear boss; Described five gear shifting blocks have the extension boss stretching out to described shifting axle side, on described extension boss, have curve bath and by this curve bath with described in the shaft sleeve part phase clamping of changing lever; Described five gear shifting blocks are provided with in nearly described angle one side of dialling the shifting block boss rearward stretching out, and described shifting block boss is provided with guiding surface in nearly described shifting axle one side.
In above-mentioned automobile speed variator reverse gear synchromesh gear technological scheme, technological scheme can also be more specifically: described shifting cover for seat has torsion spring positioning hole in the gear boss side of dialling of the described plectrum that reverses gear, and at the center of dialling gear boss of the described plectrum that reverses gear, is provided with spacing hole; The two ends of described torsion spring be inserted into respectively described shifting cover for seat torsion spring positioning hole and described in reverse gear in the spacing hole of plectrum.
Front end of the present utility model refers to one end of the nearly input shaft of gear-shifting rocker arm.
Owing to having adopted technique scheme, the utility model compared with prior art has following beneficial effect: because this device by having set up gearshift cover for seat, being contained in the plectrum that reverses gear on shifting axle by torsion spring on shifting axle, on changing lever, set up presynchronization shifting block, on five gear shifting blocks, set up shifting block boss, and set up at the plectrum that reverses gear group gear boss of dialling angle and matching with the presynchronization shifting block of changing lever matching with the shifting block boss of five gear shifting blocks; Change while reversing gear; rocking arm first turns clockwise and drives five gear shifting blocks up by dialling angle; make five gear wishbone levers by five gear synchronous gear hubs, five gear synchronizing tooth rings be pressed down and make and produce friction with the cone positioning part of five gear driven gears, make five gear driven gears and five keep off driving tooths and reach synchronizing direct to input shaft and stop the rotation; Rocking arm promote to be dialled in the plane that gear boss rides over extension boss and is made five gear shifting blocks descending by presynchronization shifting block again, the five gear wishbone levers that are located at five gear declutch shift shaft tops upwards depart from five gear synchronizing tooth rings by five gear synchronizing tooth rings, gear reverse declutch shift shaft is descending under the shifting block that reverses gear drives simultaneously, smooth-going the moving down respectively of the idle pulley that makes to reverse gear is connected with a joggle with reverse gear driving tooth and the driven tooth of reversing gear, and completes the gearshift of reversing; Because gearshift has made input shaft stop the rotation, therefore, the put into gear generation of abnormal sound phenomenon that having eliminated reverses gear, this device affects less on the gear shifting force reversing gear simultaneously; Guarantee the synchronous and off-gear process of whole five gear synchronizers, guaranteed the smoothness reversing gear and the reliability of putting into gear.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model example.
Fig. 2 is the structural representation of the shifting axle of the utility model example.
Fig. 3 is five gear declutch shift shafts of the utility model example and the structural representation of a plurality of gears on output shaft.
Fig. 4 is input shaft, the gear reverse declutch shift shaft of the utility model example and the structural representation of the idler shaft that reverses gear.
Fig. 5 is that the utility model embodiment's gearshift plectrum is at initial neutral position state schematic diagram.
Fig. 6 is that the utility model embodiment's gearshift plectrum is at synchronous finishing stage schematic diagram.
Fig. 7 is that the utility model embodiment's gearshift plectrum is at the extension state schematic diagram that reverses gear.
Fig. 8 is that the utility model embodiment's gearshift plectrum is in the gear view of making the return trip empty.
Embodiment
Below in conjunction with accompanying drawing example, the utility model is described in further detail:
The automobile speed variator reverse gear synchromesh gear of putting as shown in Figure 1 and Figure 4 comprises that fixed cover is equipped with the output shaft (not shown) that five gear synchronous gear hubs 20, five keep off synchronizing tooth rings 18, are provided with five gear driven gears 17 and the driven gear 13 that reverses gear successively, five gear synchronizing tooth rings 18 are sleeved on the cone positioning part of five gear driven gears 17, are movably installed with the five gear synchronous gear sleeves 19 that its outer rim has positioning ring groove outside five gear synchronous gear hubs 20; Be set with successively the five gear driving gears 23 that are connected with a joggle with five gear driven gears 17 and the input shaft 31 of the driving gear 311 that reverses gear; Be movably installed with the idler shaft 24 that reverses gear that bottom has the idle pulley 25 that reverses gear of circular groove, the idle pulley 25 that reverses gear can move up and down on the idler shaft 24 that reverses gear; Be set with the gear reverse declutch shift shaft 28 of back fork 26, back fork 26 is fixed on gear reverse declutch shift shaft 28 by resilient key 27, on gear declutch shift shaft 28, has and dials retaining groove mouth 281; Back fork 26 is installed in the circular groove of idle pulley 25 bottoms of reversing gear, when the idler shaft 24 that reverses gear is moved downward to reverse gear driving gear 311 and the driven gear 13 that reverses gear in highly corresponding position by back fork 26 by the idle pulley 25 that reverses gear, the driving gear 311 that reverses gear is connected with a joggle with the driven gear 13 that reverses gear by the idle pulley 25 that reverses gear, as shown in Figure 2.In output shaft one side, five gear declutch shift shafts 12, the five gear shifting blocks 9 that are set with five gear shifting blocks 9 being housed is fixed on five gear declutch shift shafts 12 by resilient key 8; Between five gear declutch shift shafts 12 and output shaft, frame is equipped with five gear wishbone levers 14, five gear wishbone levers 14 have the shift fork of U-shaped and the contiguous block linking with this shift fork, five gear wishbone levers 14 are hinged on five gear shift fork bearings 16 by two bearing pins 15 that are through on shift fork both sides, and five gear shift fork bearings 16 are fixedly mounted on casing; The both sides of five gear wishbone lever 14 shift forks are installed in the positioning ring groove of five gear synchronous gear sleeves 19 by two shift fork pin 22, and the contiguous block of five gear wishbone levers 14 is installed in the draw-in groove at five gear declutch shift shaft 12 tops, as shown in Figure 3.
During work, the shifting axle 3 of the gear-shifting rocker arm 1 being connected with car load drag-line is housed, gear-shifting rocker arm 1 is fixed on the tail end of shifting axle 3 by resilient key 2; At shifting axle 3 front ends, be fixed with successively and change lever 7 and shifting cover for seat 4, shifting cover for seat 4 is fixed on shifting axle 3 by resilient key 30, changes lever 7 by resilient key 29, to be fixed on shifting axle 3; Changing lever 7 has shaft sleeve part and is located in opposite directions reverse gear shifting block 703 and the forward gear shifting block 702 of its shaft sleeve part front end, in the shaft sleeve part tail end of shifting block 703 1 sides of reversing gear, is provided with presynchronization shifting block 701; In shifting cover for seat 4 and change lever and by torsion spring 5 activities, the plectrum 6 that reverses gear is housed between 7, the plectrum 6 that reverses gear have be located at forward gear shifting block 702 1 sides dial angle 601 and be located at shifting block 703 1 sides of reversing gear dial gear boss 602; Shifting cover for seat 4 has torsion spring positioning hole 401 in the front end of dialling gear boss 602 1 sides, in the central position of dialling gear boss 602 of the plectrum 6 that reverses gear, has spacing hole; The two ends of torsion spring 5 are inserted into respectively in the torsion spring positioning hole 401 of shifting cover for seat 4 and the spacing hole of the plectrum 6 that reverses gear.Five gear shifting blocks 9 have the extension boss stretching out to shifting axle 3 sides, on extension boss, have curve bath 902 and by this curve bath 902 with change lever 7 shaft sleeve part phase clamping; Five gear shifting blocks 9 are provided with in the nearly angle 601 1 side end faces of dialling the shifting block boss 904 rearward stretching out, and shifting block boss 904 is provided with the guiding surface of dialling angle 601 in nearly shifting axle 3 one sides.
Vehicle is when preparing reversing, be vehicle when static neutral position state, owing to reversing gear, idle pulley 25 and the driven tooth 13 of reversing gear are separated from each other, therefore the idle pulley 25 that reverses gear does not rotate with the driven gear 13 that reverses gear, meanwhile, the gear driving tooth 23 of five on input shaft 31 and five gear driven tooth 17 are connected with a joggle, because five gear synchronous gear sleeves 19 are in neutral position state, now, five gear synchronous gear sleeves 19 and five gear synchronous gear hubs 20 remain static.When vehicle is stepped on clutch, input shaft 31 still has the rotation time of certain hour, speed changer continues to hang into reversing gear; rocking arm 1 drives shifting axle 3 axial advancement; the shifting block 703 that reverses gear of shifting lever 7 moves to dialling in retaining groove mouth 281 of gear reverse declutch shift shaft 28, and forward gear shifting block 702 shifts out the shifting block notch 901 of five gear shifting blocks 9 simultaneously, and the plectrum 6 that now reverses gear is along with block selecting operation axial advancement; until dial the bottom surface of the shifting block boss 904 of angle 601 and five gear shifting blocks 9, connect, as schematic diagram 5.
Next, rocking arm 1 drives shifting axle 3 to clockwise rotate, the shifting block 703 that reverses gear of shifting lever 7 is stirred gear reverse declutch shift shaft 28 and is moved down, and be moved downward to reverse gear driven gear 13 and the driving gear 311 that reverses gear and be connected with a joggle by back fork 26 idle pulley 25 that will reverse gear, while presynchronization shifting block 701 is dialled gear boss 602 by promotion and is driven the plectrum 6 that reverses gear to clockwise rotate, making to dial angle 601 promotion shifting block boss 904 moves up, make five gear wishbone levers 14 rotate and drive five gear synchronous gear sleeve 19 towards five gear driven tooth 17 and five gear synchronizing tooth rings 18 to move around bearing pin 15, speed changer is equivalent to and has entered speed changer five gear presynchronization operating modes, now owing to only having five gear synchronous gear hubs 20 to be connected with output shaft, vehicle remains static, therefore five gear synchronous gear sleeves 1 are staticly not rotate, and five gear driven tooth 17 and five gear driving tooths 23 are connected with a joggle, therefore five gear driven tooth 17 are by five gear driving tooth 23 driven rotary, due to five gear synchronizing tooth rings 18 and five gear driven tooth 17 exist relatively rotate poor, under the downward effect of five gear synchronous gear sleeves 19, five gear synchronizing tooth rings 18 produce friction until synchronize with the cone positioning part of five gear driven tooth 17, five keep off driven tooth 17, five gear driving tooths 23 and input shaft 31 all stop operating, as shown in Figure 6.
Along with gearshift is proceeded, the plectrum 6 that reverses gear continues to clockwise rotate, when turning to shifting block boss 904 disengagings of dialling angle 601 and five gear shifting blocks 9, the gear boss 602 of dialling of plectrum 6 of simultaneously reversing gear connects with five planes 903 of keeping off the extension boss of shifting blocks 9, and promote five gear shifting blocks 9 and move down, the gear face Mei Jiao of the idle pulley 25 that now reverses gear starts to connect with the driving tooth 311 gear upper-end surfaces of reversing gear; Each gear all stops operating thus.When rocking arm 1 drives the plectrum 6 that reverses gear, continue to clockwise rotate, five gear shifting blocks 9 move down under the drive of dialling gear boss 602 of the plectrum 6 that reverses gear, and make five gear wishbone levers 14 drive five gear synchronous gear sleeves 19 separated with five gear synchronizing tooth rings 18; Simultaneously gear reverse declutch shift shaft 28 moves down under the shifting block 703 that reverses gear of shifting lever 7 drives, and by back fork 26, drives the idle pulley 25 that reverses gear to slip into smoothly with reverse gear driving gear 311 and the driven gear 13 that reverses gear to be connected with a joggle.Now, driver lets the clutch be slipped, and engine power completes reversing by reverse gear idle pulley 25 and driven tooth 13 normal delivery to the output shaft that reverses gear, as shown in Figure 7.
After having moveed backward, driver will put in place and get back to neutral, be that rocking arm 1 rotates counterclockwise, under the shifting block 703 of reversing gear of the plectrum 6 that reverses gear drives, the driving tooth 311 that reverses gear that back fork 26 drives the idle pulley 25 that reverses gear slowly to depart from, elected 7 rotations of changing lever are to dialling that angle 601 and five guiding surfaces that keep off shifting block 9 shifting block boss 904 connect and under the twisting force of torsion spring 5, shifting lever 7 twists relatively, until reverse gear, idle pulley 25 departs from the driven tooth 13 of reversing gear completely, gets back to neutral, as shown in Figure 8.Last shifting lever 7 moves to neutral gear position after along with shifting 3, and the presynchronization shifting block 701 of shifting lever 7 departs from the shifting block boss 904 of five gear shifting blocks 9, and the plectrum 6 that reverses gear pops into position under the twisting force of torsion spring 5, and completing reverses gear moves back gear process, as shown in Figure 5.

Claims (2)

1. an automobile speed variator reverse gear synchromesh gear, comprises that movable sheath is housed successively the output shaft of five gear synchronous gear hubs (20) of five gear synchronous gear sleeves (19), five gear synchronizing tooth rings (18), five gear driven gears (17) and the driven gear that reverses gear (13); Be provided with successively the input shaft (31) of five gear driving gears (23) and the driving gears that reverse gear (311) that are connected with a joggle with described five gear driven gears (17); The idler shaft that reverses gear (24) of the idle pulley that reverses gear (25) is equipped with in activity; The gear reverse declutch shift shaft (28) of dialling retaining groove mouth (281) that is provided with of back fork (26) is housed, in the circular groove of idle pulley (25) bottom of reversing gear described in described back fork (26) is installed on; Be provided with five gear declutch shift shafts (12) of five gear shifting blocks (9), at five gear declutch shift shaft (12) tops, be provided with the five gear wishbone levers (14) with described five gear synchronous gear sleeve (19) phase clampings by shift fork pin (22); Front end is provided with the shifting axle (3) of change lever (7), described in change lever (7) there is shaft sleeve part and be located in opposite directions the shifting block that reverses gear (703) and the forward gear shifting block (702) of its shaft sleeve part front end; It is characterized in that: in the described described shaft sleeve part tail end that reverses gear shifting block (703) one sides, be provided with presynchronization shifting block (701); Described shifting axle (3) is installed with shifting cover for seat (4) and by torsion spring (5) activity, the plectrum that reverses gear (6) is housed between the two in described changing lever (7) rear, described in reverse gear plectrum (6) have be located at described forward gear shifting block (702) one sides dial angle (601) and be located at described in the reverse gear group gear boss (602) of shifting block (703) one sides; Described five gear shifting blocks (9) have the extension boss stretching out to described shifting axle (3) side, on described extension boss, have curve bath (902) and by this curve bath (902) with described in the change lever shaft sleeve part phase clamping of (7); Described five gear shifting blocks (9) are provided with in nearly described angle (601) one sides of dialling the shifting block boss (904) rearward stretching out, and described shifting block boss (904) is provided with guiding surface in nearly described shifting axle (3) one sides.
2. automobile speed variator reverse gear synchromesh gear according to claim 1, it is characterized in that: described shifting cover for seat (4) has torsion spring positioning hole (401) in gear boss (602) side of dialling of the described plectrum that reverses gear (6), at the center of dialling gear boss (602) of the described plectrum that reverses gear (6), is provided with spacing hole; The two ends of described torsion spring (5) be inserted into respectively described shifting cover for seat (4) torsion spring positioning hole (401) and described in reverse gear in the spacing hole of plectrum (6).
CN201420473929.1U 2014-08-21 2014-08-21 Automobile speed variator reverse gear synchromesh gear Withdrawn - After Issue CN204004222U (en)

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CN201420473929.1U CN204004222U (en) 2014-08-21 2014-08-21 Automobile speed variator reverse gear synchromesh gear

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104154188A (en) * 2014-08-21 2014-11-19 柳州上汽汽车变速器有限公司 Reverse gear synchronizer device of automobile speed changer
CN106151506A (en) * 2015-05-15 2016-11-23 通用汽车环球科技运作有限责任公司 Shifting of transmission fork and the system of manufacture
CN104154188B (en) * 2014-08-21 2017-01-04 柳州上汽汽车变速器有限公司 Automotive transmission reversing-gear synchronizer device
CN107290088A (en) * 2017-06-29 2017-10-24 柳州上汽汽车变速器有限公司 The measuring method of shift fork bushing withdrawal force

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104154188A (en) * 2014-08-21 2014-11-19 柳州上汽汽车变速器有限公司 Reverse gear synchronizer device of automobile speed changer
CN104154188B (en) * 2014-08-21 2017-01-04 柳州上汽汽车变速器有限公司 Automotive transmission reversing-gear synchronizer device
CN106151506A (en) * 2015-05-15 2016-11-23 通用汽车环球科技运作有限责任公司 Shifting of transmission fork and the system of manufacture
CN107290088A (en) * 2017-06-29 2017-10-24 柳州上汽汽车变速器有限公司 The measuring method of shift fork bushing withdrawal force

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C14 Grant of patent or utility model
GR01 Patent grant
AV01 Patent right actively abandoned

Granted publication date: 20141210

Effective date of abandoning: 20161019

C25 Abandonment of patent right or utility model to avoid double patenting