CN208997329U - A kind of flexible gear-shifting mechanism - Google Patents

Abstract

The utility model relates to gearshift technical fields, disclose a kind of flexible gear-shifting mechanism, including the driver plate being socketed on line shaft, the rear side of driver plate is equipped with perforated pan, perforated pan is hinged on line shaft, multi-pin is fixed on driver plate, pin hole is formed on perforated pan, pin sleeve is in pin hole, annular groove is formed on the outer wall of driver plate, there are two shifting blocks for annular groove socket, two shifting blocks are respectively hinged on shift fork arm, shift fork arm is hinged on a pair of of trunnion of moving arm by pin shaft, torsional spring is socketed in the middle part of pin shaft, the both ends torque arm of torsional spring presses up against on the front side wall of shift fork arm and on the left side wall of moving arm, moving arm is socketed and is fixed on mobile arm axle, it realizes flexible shifting by the design seperated with shifting block of shift fork arm and the buffering return design of torsional spring, overcome in shift process the pin of driver plate with The hole of perforated pan is not aligned with the drawbacks of causing correlated parts deformation or damage.

Description

A kind of flexible gear-shifting mechanism

Technical field:

The utility model relates to gearshift technical fields, and in particular to a kind of flexible gear-shifting mechanism.

Background technique:

Gearshift is the important neck component in transmission control, and function is that driving clutch collar is transported along axial reciprocating It is dynamic to realize shift, and the driving method of selector fork generally pass through shift fork arm driver plate carries out it is axially driving, group Generally using rigid connection between yoke and shift fork axle, but in shift process, the pin on driver plate not necessarily every time can be right The hole of quasi- perforated pan, more jerky into gear process, the shock of driver plate and perforated pan easily causes the associateds such as shift fork arm, shift fork axle The deformation or damage connect.

Utility model content:

The purpose of the utility model is to overcome the deficiencies in the prior art, provide a kind of flexible gear-shifting mechanism, it passes through shift fork Arm design seperated with shifting block and the buffering return design of torsional spring realize flexible shifting, overcome the driver plate in shift process Pin and the hole of perforated pan be not aligned with the drawbacks of causing correlated parts deformation or damage.

The scheme that the utility model solves the technical problem is:

A kind of flexible gear-shifting mechanism, including the driver plate being socketed on line shaft, the rear side of driver plate is equipped with perforated pan, perforated pan It is hinged on line shaft, the pin of multiple circumference uniform distributions is fixed on the rear wall of the driver plate, formed on perforated pan and pin The identical pin hole of quantity of son, pin sleeve form annular groove in pin hole on the outer wall of the driver plate, annular groove Top and bottom are respectively socketed with a shifting block, and two shifting blocks are respectively hinged on shift fork arm, one end of the separate shifting block of shift fork arm It is hinged on a pair of of trunnion of moving arm by pin shaft, torsional spring is socketed in the middle part of the pin shaft, the both ends torque arm of torsional spring is facing forward Setting, one end torque arm of torsional spring are pressed against on the front side wall of shift fork arm, and the other end torque arm of torsional spring is pressed against the left side of moving arm On wall, the end of the nearly moving arm of the shift fork arm rest is fixed with limited block, and limited block is located at the rear side of pin shaft, the right side of limited block Wall pressure leans against on the left side wall of moving arm, and the moving arm is socketed and is fixed on mobile arm axle, the mobile arm axle with it is described Line shaft is arranged in parallel.

The shift fork arm forms semicircular ring, and two ends of semicircular ring respectively form about one perforative through-hole, institute Stating shifting block includes integrally formed rectangular block and hinge bar, and the hinge bar forms card on the outer wall of the extension end of through-hole Spring slot is socketed with circlip in jump-ring slot.

The width of the rectangular block and the groove width clearance fit of annular groove.

The protrusion effect of the utility model is:

Compared with prior art, it is designed by the buffering return of the design seperated with shifting block of shift fork arm and torsional spring and is realized Flexible shifting, overcome in the shift process pin of driver plate and the hole of perforated pan be not aligned with cause correlated parts deform or The drawbacks of damage.

Detailed description of the invention:

Fig. 1 is the top view of the utility model；

Fig. 2 is the front view of the utility model；

Fig. 3 is partial enlarged view of the Fig. 2 about A；

Fig. 4 is partial enlarged view of the Fig. 2 about B.

Specific embodiment:

Embodiment, as shown in Figures 1 to 4, a kind of flexible gear-shifting mechanism are dialled including the driver plate 1 being socketed on line shaft 11 The rear side of disk 1 is equipped with perforated pan 2, and perforated pan 2 is hinged on line shaft 11, and perforated pan 2 can rotate on line shaft 11 but cannot It slides, the pin 101 of multiple circumference uniform distributions is fixed on the rear wall of the driver plate 1, is formed and pin 101 on perforated pan 2 The identical pin hole 201 of quantity, 101 sleeve of pin forms annular groove on the outer wall of the driver plate 1 in pin hole 201 102, the top and bottom of annular groove 102 are respectively socketed with a shifting block 3, and two shifting blocks 3 are respectively hinged on shift fork arm 5, dial Block 3 can rotate freely on shift fork arm 5, and one end of the separate shifting block 3 of shift fork arm 5 is hinged on the one of moving arm 10 by pin shaft 8 To on trunnion 12, shift fork arm 5 can be rotated around pin shaft 8, and the middle part of the pin shaft 8 is socketed with torsional spring 6, the both ends torque arm of torsional spring 6 601 are arranged forward, and one end torque arm 601 of torsional spring 6 is pressed against on the front side wall of shift fork arm 5, and the other end torque arm 601 of torsional spring 6 is pressed On the left side wall for leaning against moving arm 10, the shift fork arm 5 is fixed with limited block 9 close to the end of moving arm 10, and limited block 9 is located at The rear side of pin shaft 8, the right side wall of limited block 9 are pressed against on the left side wall of moving arm 10, and limited block 9 limits shift fork arm 5 backward The amplitude of rotation, the moving arm 10 are socketed and are fixed on mobile arm axle 7, and the mobile arm axle 7 and the line shaft 11 are flat The oil cylinder of row setting, mobile arm axle and automatic controls connects, and oil cylinder is connected by the hydraulic valve of automatic controls.

Further, the shift fork arm 5 forms semicircular ring 501, and two ends of semicircular ring 501 respectively form one A perforative through-hole 502 up and down, the shifting block 3 include integrally formed rectangular block 301 and hinge bar 302, the hinge bar 302 Jump-ring slot is formed on the outer wall of the extension end of through-hole 502, and circlip 4 is socketed in jump-ring slot.

Further, the groove width clearance fit of the width of the rectangular block 301 and annular groove 102.

Working principle: when needing driver plate 1 and perforated pan 2 rotates synchronously, automatic controls is controlled by hydraulic valve Oil cylinder starts, and oil cylinder passes through mobile arm axle 7 and moving arm 10 is driven to move back, and moving arm 10 passes through a pair of of trunnion 12 and pin shaft 8 drives Shift fork arm 5 moves back, shift fork arm 5 by shifting block 3 drive driver plate 1 move backward, but the pin 101 on driver plate 1 not necessarily with it is with holes The alignment of pin hole 201 (but movable block in place) on disk 2, at this point, shift fork arm 5 is since driver plate 1 is withstood, shift fork arm 5 can only be around Pin shaft 8 has rotated an angle, and torsional spring 6 puts aside more elastic potential energys, with driver plate 1 and each spinning of perforated pan 2, driver plate 1 On pin and perforated pan 2 pin hole to upper, set aside yoke 5 in the twisting force of torsional spring and circle round backward in place, driver plate 1 and with holes Disk 2 combines, to realize realization synchronous rotary；When needing the 2 each spinning of driver plate 1 and perforated pan, automatic controls leads to The piston rod for crossing hydraulic valve control oil cylinder is shunk, and mobile arm axle 7 drives the Forward of moving arm 10 to reset, and moving arm is driven by pin shaft The Forward of shift fork arm resets, and shift fork armband is moved driver plate Forward and resetted, and the pin on driver plate is detached from perforated pan, to realize 1 He of driver plate Each spinning of perforated pan 2.

Finally, embodiment of above is merely to illustrate the utility model, and it is not limitation of the utility model, related skill The those of ordinary skill in art field can also make various changes in the case where not departing from the spirit and scope of the utility model Change and modification, therefore all equivalent technical solutions also belong to the scope of the utility model, the patent protection model of the utility model Enclosing should be defined by the claims.

Claims (3)

1. a kind of flexible gear-shifting mechanism, including the driver plate (1) being socketed on line shaft (11), the rear side of driver plate (1) is equipped with holes Disk (2), perforated pan (2) are hinged on line shaft (11), it is characterised in that: are fixed on the rear wall of the driver plate (1) multiple The pin (101) of circumference uniform distribution forms pin hole (201) identical with the quantity of pin (101), pin on perforated pan (2) (101) sleeve forms annular groove (102) on the outer wall of the driver plate (1) in pin hole (201), annular groove (102) Top and bottom are respectively socketed with a shifting block (3), and two shifting blocks (3) are respectively hinged on shift fork arm (5), shift fork arm (5) it is remote One end from shifting block (3) is hinged on a pair of of trunnion (12) of moving arm (10) by pin shaft (8), the middle part of the pin shaft (8) It is socketed with torsional spring (6), the both ends torque arm (601) of torsional spring (6) is arranged forward, and one end torque arm (601) of torsional spring (6) is pressed against shift fork On the front side wall of arm (5), the other end torque arm (601) of torsional spring (6) is pressed against on the left side wall of moving arm (10), the shift fork arm (5) end close to moving arm (10) is fixed with limited block (9), and limited block (9) is located at the rear side of pin shaft (8), limited block (9) Right side wall is pressed against on the left side wall of moving arm (10), and the moving arm (10) is socketed and is fixed on mobile arm axle (7), described Mobile arm axle (7) are arranged in parallel with the line shaft (11).

2. a kind of flexible gear-shifting mechanism according to claim 1, it is characterised in that: the shift fork arm (5) forms semicircle Ring (501), two ends of semicircular ring (501) respectively form about one perforative through-hole (502), and the shifting block (3) includes Integrally formed rectangular block (301) and hinge bar (302), the hinge bar (302) pass through the outer wall of the extension end of through-hole (502) On form jump-ring slot, circlip (4) are socketed in jump-ring slot.

3. a kind of flexible gear-shifting mechanism according to claim 2, it is characterised in that: the width of the rectangular block (301) with The groove width clearance fit of annular groove (102).