阅读说明：本技术 一种自动液力变速器换档装置 (Automatic hydraulic transmission gear shifting device ) 是由 罗雨 秦龚玉 杨汉明 于 2020-11-27 设计创作，主要内容包括：本发明提供一种自动液力变速器换档装置,包括换档轴、档位棘爪和滚轴,滚轴可转动地支承于汽车内部的弹性部件上,档位棘爪边沿设置有多个棘齿,任意相邻两个棘齿之间形成档位槽,档位棘爪上还铆接有转轴,转轴固定套接于换档轴上,换档轴一端可转动地支承于汽车变速箱壳体上,当对换档轴另一端施加作用力使其旋转时,滚轴在相邻两个档位槽之间切换。采用本发明的技术方案,使汽车车速档位能够通过机械力进行切换,弹性部件提供的弹性力使汽车车速能够限定保持在特定档位位置上,通过选档阀上安装的滑销与档位棘爪上相应的滑槽的配合连接,将档位位置切换信息反馈给选档阀,从而将汽车行驶档位锁定特定档位上,保证汽车行驶安全。(The invention provides a gear shifting device of an automatic hydraulic transmission, which comprises a gear shifting shaft, a gear pawl and a rolling shaft, wherein the rolling shaft is rotatably supported on an elastic component in an automobile, a plurality of ratchets are arranged at the edge of the gear pawl, a gear groove is formed between any two adjacent ratchets, a rotating shaft is also riveted on the gear pawl and fixedly sleeved on the gear shifting shaft, one end of the gear shifting shaft is rotatably supported on the shell of the automobile transmission, and when acting force is applied to the other end of the gear shifting shaft to enable the gear shifting shaft to rotate, the rolling shaft is switched between two adjacent gear grooves. By adopting the technical scheme of the invention, the automobile speed gears can be switched by mechanical force, the elastic force provided by the elastic component can limit the automobile speed to be kept at a specific gear position, and the gear position switching information is fed back to the gear selection valve by matching and connecting the sliding pin arranged on the gear selection valve and the corresponding sliding groove on the gear pawl, so that the automobile driving gears are locked on the specific gears, and the automobile driving safety is ensured.)

1. The utility model provides an automatic hydraulic transmission gearshift, includes gear shift (3), gear pawl (5) and roller bearing (11), roller bearing (11) rotationally supports on the inside elastomeric element (10) of car, gear pawl (5) border is provided with a plurality of ratchets, forms gear groove (51) between two arbitrary adjacent ratchets, it has pivot (6) still to rivet on gear pawl (5), pivot (6) are fixed cup joint in on gear shift (3), gear shift (3) one end rotationally supports on automobile transmission casing (16), and is right when gear shift (3) other end is applyed the effort and is made its rotation, roller bearing (11) switch between two adjacent gear grooves (51).

2. The automatic hydraulic transmission shifter of claim 1, wherein: the elastic component (10) is a brake spring plate.

3. The automatic hydraulic transmission shifter of claim 1, wherein: the other end of the gear shifting shaft (3) is also fixedly connected with a gear shifting plectrum (1) which is used for applying acting force to the gear shifting shaft (3) through the gear shifting plectrum (1) when a user needs the gear shifting plectrum.

4. The automatic hydraulic transmission shifter of claim 3, wherein: the gear shifting plectrum (1) is fixedly connected with the gear shifting shaft (3) through a locking nut (2).

5. The automatic hydraulic transmission shifter of claim 1, wherein: the rotating shaft (6) is fixedly sleeved on the shift shaft (3) through a fastening bolt (8).

6. The automatic hydraulic transmission shifter of claim 1, wherein: automatic hydraulic transmission gearshift still includes interior mode switch (4) and response rotor (7), and fixed suit in response rotor (7) is in on pivot (6), interior mode switch (4) one end pass through fixed pin (12) with elastomeric element (10) fixed connection is in the same place, and interior mode switch (4) other end cup joints in on pivot (6), interior mode switch (4) inserts car electrical control system, and interior mode switch (4) are used for sensing its and the response rotor (7) between the relative position variation and transmit for car electrical control system after changing this relative position variation into the signal of telecommunication.

7. The automatic hydraulic transmission shifter of claim 1, wherein: the automatic hydraulic transmission gear shifting device further comprises a gear selecting valve (15) arranged inside the automobile, a sliding pin (14) is fixedly connected to a valve core of the gear selecting valve (15), a sliding groove (52) is further formed in the gear pawl (5), and the sliding pin (14) is sleeved in the sliding groove (52).

8. The automatic hydraulic transmission shifter of claim 1, wherein: the gear shifting shaft (3) is further provided with an annular groove, the automobile gearbox is further provided with a positioning pin (9), and the tail end of the positioning pin (9) extends into the annular groove to enable the gear shifting shaft (3) to be rotatably supported on the automobile gearbox.

9. The automatic hydraulic transmission shifter of claim 1, wherein: the number of the gear grooves (51) is more than 4.

Technical Field

The invention belongs to the technical field of automobile transmissions, and particularly relates to a gear shifting device of an automatic hydraulic transmission.

Background

At present, automobile models widely sold in the market are mainly divided into a manual transmission and an automatic transmission according to the type of a speed change mechanism adopted by the automobile models, automobiles equipped with the automatic transmission are increasingly popularized, an automatic transmission gear shifting device is an important part in the automobile, the automatic transmission gear shifting device mainly comprises a gear shifting handle, a transmission control unit, a gear shifting electromagnetic valve and other modules, gears in the automobile speed change mechanism are switched according to the current running speed of the automobile through a corresponding electric control system, however, when the electric control system of the automobile loses power supply, the gear shifting of the automatic transmission fails, the gears in the automobile speed change mechanism cannot be correspondingly switched, the running safety of the automobile is affected, meanwhile, when in a power failure state, each gear in the automatic gear model cannot be locked at a corresponding gear position after switching so that the automobile can always keep running under the speed of one gear, the optimal matching between the speed and the gear of the automobile cannot be achieved.

Disclosure of Invention

In order to solve the technical problem, the invention provides a gear shifting device of an automatic hydraulic transmission.

The invention is realized by the following technical scheme.

The invention provides a gear shifting device of an automatic hydraulic transmission, which comprises a gear shifting shaft, a gear pawl and a rolling shaft, wherein the rolling shaft is rotatably supported on an elastic component in an automobile, a plurality of ratchets are arranged at the edge of the gear pawl, a gear groove is formed between any two adjacent ratchets, a rotating shaft is also riveted on the gear pawl and fixedly sleeved on the gear shifting shaft, one end of the gear shifting shaft is rotatably supported on the shell of the automobile transmission, and when acting force is applied to the other end of the gear shifting shaft to enable the gear shifting shaft to rotate, the rolling shaft is switched between two adjacent gear grooves.

The elastic component is a brake spring plate.

The other end of the gear shifting shaft is also fixedly connected with a gear shifting plectrum which is used for applying acting force to the gear shifting shaft through the gear shifting plectrum when a user needs.

The gear shifting plectrum is fixedly connected with the gear shifting shaft through a locking nut.

The rotating shaft is fixedly sleeved on the gear shifting shaft through a fastening bolt.

The automatic hydraulic transmission gear shifting device further comprises an inner mode switch and an induction rotor, the induction rotor is fixedly sleeved on the rotating shaft, one end of the inner mode switch is fixedly connected with the elastic part together through a fixing pin, the other end of the inner mode switch is sleeved on the rotating shaft, the inner mode switch is connected into an automobile electrical control system, and the inner mode switch is used for sensing the relative position variation between the inner mode switch and the induction rotor and converting the relative position variation into an electrical signal and then transmitting the electrical signal to the automobile electrical control system.

The automatic hydraulic transmission gear shifting device further comprises a gear selecting valve arranged inside the automobile, a sliding pin is fixedly connected to a valve core of the gear selecting valve, a sliding groove is further formed in the gear pawl, and the sliding pin is sleeved in the sliding groove.

The gear shift shaft is further provided with an annular groove, the automobile gearbox is further provided with a positioning pin, and the tail end of the positioning pin extends into the annular groove to enable the gear shift shaft to be rotatably supported on the automobile gearbox.

The number of the gear grooves is more than 4.

The invention has the beneficial effects that: by adopting the technical scheme of the invention, when acting force is applied to the other end of the gear shift shaft to rotate, the roller shaft is switched between two adjacent gear slots, so that the automobile speed gears can be switched through mechanical force, meanwhile, the elastic force provided by the elastic component can limit the automobile speed to be kept at a specific gear position, the automobile driving safety is ensured, in addition, the gear position switching information is fed back to the gear selection valve through the matching connection of the sliding pin arranged on the gear selection valve and the corresponding sliding slot on the gear pawl, so that the gear selection valve position is driven to change, the hydraulic oil circuit of the transmission is changed, the specific gear clutch is separated or combined, the automobile driving gear is locked at the specific gear, the automobile driving safety is ensured, the relative position variation between the gear selection valve and the induction rotor is sensed through the internal mode switch, and is converted into an electric signal to be transmitted to the automobile electric control system, the user can visually observe and master the current automobile gear information through the display screen of the automobile control system.

Drawings

FIG. 1 is a front view of the present invention;

FIG. 2 is a right side view of the present invention;

FIG. 3 is a top view of the present invention;

FIG. 4 is a schematic view of the connection structure of the selector valve and the slide pin according to the present invention;

FIG. 5 is a schematic view of the shift position pawl of the present invention;

in the figure: 1-gear shifting plectrum, 2-lock nut, 3-gear shifting shaft, 4-internal mode switch, 5-gear pawl, 6-rotating shaft, 7-induction rotor, 8-fastening bolt, 9-positioning pin, 10-elastic component, 11-rolling shaft, 12-fixing pin, 14-sliding pin, 15-gear selecting valve, 16-gearbox shell, 51-gear groove and 52-sliding groove.

Detailed Description

The technical solution of the present invention is further described below, but the scope of the claimed invention is not limited to the described.

As shown in fig. 1 to 5, the present invention provides an automatic hydraulic transmission shifting device, which includes a shift shaft 3, a gear pawl 5 and a roller 11, wherein the roller 11 is rotatably supported on an elastic component 10 inside an automobile, a plurality of ratchets are arranged on the edge of the gear pawl 5, a gear groove 51 is formed between any two adjacent ratchets, the gear pawl 5 is further riveted with a rotating shaft 6, the rotating shaft 6 is fixedly sleeved on the shift shaft 3, one end of the shift shaft 3 is rotatably supported on an automobile transmission case 16, and when an acting force is applied to the other end of the shift shaft 3 to rotate the shift shaft, the roller 11 is switched between two adjacent gear grooves 51.

Further, it is preferable that the elastic member 10 is a brake spring plate. The elastic part 10 can also be replaced by a brake valve, so that the driving gear position of the automobile is locked.

In addition, a shift paddle 1 is fixedly connected to the other end of the shift shaft 3, and is used for applying an acting force to the shift shaft 3 through the shift paddle 1 when a user needs the acting force. The shifting plectrum 1 is fixedly connected with a shifting shaft 3 through a lock nut 2. The rotary shaft 6 is fixedly sleeved on the shift shaft 3 through a fastening bolt 8.

In addition, the automatic hydraulic transmission gear shifting device further comprises an inner mode switch 4 and an induction rotor 7, the induction rotor 7 is fixedly sleeved on the rotating shaft 6, one end of the inner mode switch 4 is fixedly connected with the elastic part 10 through a fixing pin 12, the other end of the inner mode switch 4 is sleeved on the rotating shaft 6, the inner mode switch 4 is connected to an automobile electrical control system, and the inner mode switch 4 is used for sensing the relative position variation between the inner mode switch 4 and the induction rotor 7, converting the relative position variation into an electrical signal and transmitting the electrical signal to the automobile electrical control system.

Further, the automatic hydraulic transmission gear shifting device further comprises a gear selecting valve 15 arranged inside the automobile, a sliding pin 14 is fixedly connected to a valve core of the gear selecting valve 15, a sliding groove 52 is further formed in the gear pawl 5, and the sliding pin 14 is sleeved in the sliding groove 52. The shift shaft 3 is also provided with an annular groove, the automobile gearbox is also provided with a positioning pin 9, and the tail end of the positioning pin 9 extends into the annular groove to enable the shift shaft 3 to be rotatably supported on the automobile gearbox. The number of the shift grooves 51 is 4 or more. Generally, an existing automatic-gear automobile is usually provided with P, R, N, D gears, corresponding gear grooves 51 are corresponding to all gears arranged on the automobile one by one, and meanwhile, the gears D1, D2 and D3 are additionally arranged, so that the gear range which is used for locking a transmission at a certain common gear or selecting and calibrating the most suitable actual use of the whole automobile according to vehicle matching calculation is enriched.

By adopting the technical scheme of the invention, when acting force is applied to the other end of the gear shifting shaft to rotate the gear shifting shaft, the roller shaft is switched between two adjacent gear slots, so that the speed gears of the automobile can be switched through mechanical force, meanwhile, the elastic force provided by the elastic component can limit the speed of the automobile to be kept at a specific gear position, thereby ensuring the driving safety of the automobile, in addition, the gear position switching information is fed back to the gear selecting valve through the matching connection of a sliding pin arranged on the gear selecting valve and a corresponding sliding slot on a gear pawl, thereby driving the position change of the gear selecting valve, changing a hydraulic oil circuit of a transmission, separating or combining a clutch of the specific gear, locking the driving gear of the automobile on the specific gear, ensuring the driving safety of the automobile, sensing the relative position variation between the gear selecting valve and an induction rotor through an internal mode switch, converting the relative position variation into an electric signal and then transmitting, the user can visually observe and master the current automobile gear information through the display screen of the automobile control system.