CN213017652U

CN213017652U - Self-resetting knob gear shifting control mechanism

Info

Publication number: CN213017652U
Application number: CN202020923444.3U
Authority: CN
Inventors: 王逸云; 张军; 许良兵; 王伟; 鲁秀伟; 陶松; 张海源; 薛琦; 赵建书; 古红晓; 黄巨成
Original assignee: Chery Commercial Vehicle Anhui Co Ltd
Current assignee: Chery Automobile Co Ltd
Priority date: 2020-05-27
Filing date: 2020-05-27
Publication date: 2021-04-20
Anticipated expiration: 2030-05-27

Abstract

A self-reset knob gear-shifting control mechanism belongs to the technical field of automobile gear shifting, and comprises an upper shell, a lower shell, a knob, a reset rotating body, a limiting pin and a reset spring, wherein the reset rotating body is arranged between the upper shell and the lower shell, the reset rotating body comprises a sleeve fixing part and a gear tooth-shaped groove which is circumferentially arranged, the axial direction of the sleeve fixing part is fixedly connected with the knob, the gear tooth-shaped groove is in interference fit with the end part of the limiting pin, the limiting pin is sleeved with the reset spring and then positioned on the lower shell, the self-reset knob gear-shifting control mechanism has the advantages that, this from knob operating mechanism that shifts that restores to throne overall structure is simple, has reduced installation space, can accomplish P, N, R, D through the mode of rotatory operation knob and keep off the free nimble switching of position, has improved the convenience of operation, has strengthened the operation of shifting and has experienced, has satisfied driver's user demand.

Description

Self-resetting knob gear shifting control mechanism

Technical Field

The utility model relates to a car technical field that shifts especially relates to a from knob operating mechanism that shifts that restores to throne.

Background

At present, whether a new energy automobile or a traditional automobile is adopted, most of the automobiles adopt a mechanical gear shifting mechanism of a gear shifting rod type. In the general arrangement of the whole vehicle, the gear shifting mechanism of the gear shifting lever occupies a larger space, so that the difficulty of the general arrangement is increased, and the whole activity space of a cab becomes narrow; meanwhile, the overall aesthetic property in the cab is also reduced. In operation, the shift lever type shifting mechanism needs to be shifted step by step, which makes the operation more complicated.

In order to promote the gear of car, more and more vehicle manufacture manufacturers use the electron selector instead, some electron selectors that have now adopt key control to shift gears the operation, send the instruction of shifting gears by the button and transmit to the PCB board, send electronic signal by the PCB board again and give gearbox control unit TCU, gearbox control unit TCU control actuating mechanism accomplishes the operation of shifting gears, but key operation seems to be the slabby a bit, the experience nature of shifting gears is poor, can not satisfy driver's user demand better.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a from knob operating mechanism that shifts that restores to throne, overall structure is simple, has reduced installation space, and the mode through rotatory operation knob can accomplish the free switching that keeps off the position, has improved the convenience of operation, has strengthened the operation of shifting moreover and has experienced, has satisfied driver's user demand.

In order to achieve the above object, the present invention provides a technical solution for solving the technical problem: from knob operating mechanism that shifts that restores to throne, including last casing, lower casing, knob, the rotor that resets, spacer pin and reset spring, go up and set up between casing and the lower casing the rotor that resets, the rotor that resets is including cup jointing the fender position flute profile that fixed part and circumference set up, cup joint the axial of fixed part with the knob is fixed continuous, keep off the position flute profile with the tip conflict cooperation of spacer pin, cup joint on the spacer pin location is in down on the casing.

Further, cup joint the fixed part and include the section of cup jointing that the integral type set up and shift the location section, cup joint the section through the fixed axle with the knob is fixed continuous, shift the external diameter of location section and be greater than cup joint the external diameter of section, shift the location section and set up a plurality ofly along its circumference keep off the position flute profile.

Further, keep off position flute profile, set up to the open slot that the cross-section is isosceles triangle, including returning position point, the first-order inflection point of shifting and the second-order inflection point of shifting, the top center that keeps off position flute sets up return the position point, the center department that keeps off the both sides of position flute sets up respectively the first-order inflection point of shifting, the both ends that keep off position flute set up respectively the second-order inflection point of shifting.

Furthermore, the downward pressing position of the return point is a P-gear signal position, the first-order gear shifting inflection point is an N-gear signal position, the second-order gear shifting inflection point at one end of the gear tooth-shaped groove is an R-gear signal position, and the second-order gear shifting inflection point at the other end of the gear tooth-shaped groove is a D-gear signal position.

Further, the first-order shifting inflection point and the second-order shifting inflection point are arranged in a smooth transition mode.

Furthermore, a plurality of cylindrical guide cavities are arranged on the lower shell, positioning holes are formed in the bottoms of the cylindrical guide cavities, and one end of the limiting pin is inserted into the cylindrical guide cavities after being sleeved with the reset spring and is connected with the fastening nut after extending out of the positioning holes.

Further, the spacer pin includes the connecting rod and shifts the location head, the one end of connecting rod is connected shift the location head, shift the location head with keep off gear tooth groove sliding positioning cooperation, the middle part of connecting rod cup joints reset spring, reset spring's external diameter is less than shift the external diameter of location head, the other end of connecting rod sets up the external screw thread section, the external screw thread section stretches out link to each other with the fastening nut screw behind the locating hole.

Further, the end of the gear shifting positioning head is arranged to be in a bullet head shape.

The utility model has the advantages that:

1. the utility model drives the reset rotor to rotate by a corresponding angle through the rotary knob, and the limit pin moves downwards due to the gear tooth-shaped groove arranged on the reset rotor, the reset spring is compressed to generate resilience force, when the limit pin is positioned and abutted against a gear signal point of the gear tooth-shaped groove, an angular displacement signal is generated and transmitted to the PCB, then the PCB sends an electronic signal to the gearbox controller, the gearbox controller controls the actuating mechanism to complete gear shifting operation, when the gear shifting is successful and the hand is loosened, the knob automatically returns to a balance position by means of the elasticity of the reset spring and the inclination of the gear tooth-shaped groove, the mode through the rotary operation knob can accomplish the free switching of keeping off the position promptly, and the knob can be from restoring to the throne after shifting successfully moreover, and the operation of shifting in the later stage of being convenient for has strengthened the operation of shifting and has experienced, has improved the convenience of operation, has satisfied driver's user demand.

2. Specifically, the gear tooth-shaped groove is an open groove with an isosceles triangle section, and comprises a return point, a first-order gear shifting inflection point and a second-order gear shifting inflection point, wherein the downward pressing position of the return point is a P-gear signal position, the first-order gear shifting inflection point is an N-gear signal position, the second-order gear shifting inflection point at one end of the gear tooth-shaped groove is an R-gear signal position, the second-order gear shifting inflection point at the other end of the gear tooth-shaped groove is a D-gear signal position, and the initial position of gear shifting is a P-gear, when the P-gear is shifted, the left-hand knob or the right-hand knob enables the limiting pin to be abutted against the first-order gear shifting inflection point, so as to realize the operation of shifting into the N-gear, when the R-gear or the D-gear is shifted, the left-hand knob or the right-hand knob enables the limiting pin to be abutted against the first-order gear shifting inflection point, so as to realize, a flexible shift operation of P, N, R, D is achieved.

To sum up, this from knob operating mechanism that shifts that restores to throne overall structure is simple, has reduced installation space, can accomplish P, N, R, D through the mode of rotatory operation knob and keep off the free nimble switching of position, has improved the convenience of operation, has strengthened the operation of shifting and has experienced, has satisfied driver's user demand.

Drawings

The contents of the various figures of the specification and the labels in the figures are briefly described as follows:

FIG. 1 is an exploded view of the present invention;

FIG. 2 is a longitudinal cross-sectional view of FIG. 1;

fig. 3 is a side view of the reset rotor of fig. 2;

fig. 4 is a schematic diagram of a gear position of the middle knob of the present invention;

the labels in the above figures are: 1. the gear shifting device comprises an upper shell, a lower shell, a cylindrical guide cavity 21, a positioning hole 22, a knob 3, a reset rotating body 4, a sleeve fixing part 41, a sleeve section 411, a shift positioning section 412, a gear tooth-shaped groove 42, a return point 421, a first-order shift inflection point 422, a second-order shift inflection point 423, a limiting pin 5, a connecting rod 51, a shift positioning head 52, a reset spring 6, a fastening nut 7, a PCB board 8 and a signal gear 9.

Detailed Description

To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solutions in the embodiments, and the following embodiments are used for illustrating the present invention, but do not limit the scope of the present invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The utility model discloses specific embodiment does: as shown in fig. 1 and 2, a from knob operating mechanism that shifts that restores to throne, including last casing 1, lower casing 2, knob 3 and including the rotor 4 that restores to throne, spacer pin 5 and reset spring 6's elasticity reset unit, it sets up rotor 4 that restores to throne to go up between casing 1 and the lower casing 2, this rotor 4 that restores to throne is including cup jointing the fender tooth shape groove 42 that fixed part 41 and circumference set up, the axial that cup joints fixed part 41 links to each other with knob 3 is fixed, keep off the conflict cooperation of fender tooth shape groove 42 and spacer pin 5's tip, cup joint reset spring 6 back location on lower casing 2 on the spacer pin 5. The gear-shifting control mechanism also comprises the prior gear signal transmission part, which comprises a PCB (printed circuit board) 8, a gear and a signal gear 9, wherein the PCB 8 is arranged above the upper shell 1, the gear and the signal gear 9 are arranged between the upper shell 1 and the lower shell 2, the PCB 8 is provided with a detection element which can be a Hall sensor, the axial direction of the gear is fixedly connected with the reset rotor 4, the circumferential direction of the gear is meshed with the signal gear 9, the knob 3 rotates to drive the gear to rotate, the gear drives the signal gear 9 to generate angular displacement, the top surface of the signal gear 9 is arranged at the position deviating from the axis of the signal gear, a magnet is coated and installed by adopting a coating process, the magnet can enable the Hall sensor to sense the change of the angular displacement, a wire harness connected with the PCB 8 is led out of the upper shell 1, and the PCB 8 sends out an output gear-shifting, the control signal is transmitted to a transmission control unit TCU, the TCU can determine whether the operation is real and reliable according to other signals on the automobile, such as the engine speed, the vehicle speed, the throttle opening degree, safety belt and door opening and closing signals, and if no problem is confirmed, the TCU can send out an instruction to electrify or cut off a corresponding electromagnetic valve in the transmission to control the on-off of each hydraulic control valve, so that the gear switching function is realized. The utility model discloses a rotatory knob 3 drives reset rotor 4 and rotates corresponding angle, because reset rotor 4 is last to set up fender position flute profile 42, make spacer pin 5 move down, reset spring 6 is compressed and produces the resilience force, when spacer pin 5 location was conflicted in the fender position signal point of fender position flute profile 42, the hall sensor on PCB board 8 senses the angular displacement change signal of signal gear 9 and transmits this signal to gearbox control unit TCU, TCU can send instruction control actuating mechanism and realize the switching operation of fender position, when loosing one's hand after the success of shifting gears, rely on the elasticity of reset spring 6 and the inclination of fender position flute profile 42 to realize that the knob is automatic to the equilibrium position, be convenient for the later stage shift operation, the free switching of fender position has been accomplished through the mode of rotatory operation knob, and the knob can be from restoring to the throne after the success of shifting gears, strengthened the operation experience, the convenience of operation is improved, and the use requirements of a driver are met.

Specifically, as shown in fig. 3 and 4, the socket fixing portion 41 includes a socket section 411 and a shift positioning section 412 that are integrally arranged, the socket section 411 is in interference fit with the knob 3 through a fixing shaft to realize fixed connection, an outer diameter of the shift positioning section 412 is larger than an outer diameter of the socket section 411, the shift positioning section 412 is provided with a plurality of shift tooth-shaped grooves 42 along a circumferential direction thereof, two are symmetrically arranged in fig. 2, and certainly, a plurality of shift tooth-shaped grooves can be uniformly distributed; the gear tooth-shaped groove 42 is provided with an open slot with an isosceles triangle section, and comprises a return point 421, a first-order shift inflection point 422 and a second-order shift inflection point 423, the return point 421 is arranged at the center of the top of the gear tooth-shaped groove 42, the first-order shift inflection points 422 are respectively arranged at the centers of two sides of the gear tooth-shaped groove 42, the second-order shift inflection points 423 are respectively arranged at two ends of the gear tooth-shaped groove 42, the downward pressing position of the return point 421 is a P-shift signal position, the first-order shift inflection point 422 is an N-shift signal position, the second-order shift inflection point 423 at one end of the gear tooth-shaped groove 42 is an R-shift signal position, the second-order shift inflection point 423 at the other end of the gear tooth-shaped groove 42 is a D-shift signal position, the initial position of shifting is a P-shift position, the left-handed or right-handed knob 3 enables the limit pin 5 to abut against the first-order shift inflection point 422 during the P-shift, realize shifting into the operation that R kept off or D kept off, when R kept off or D kept off, levogyration and dextrorotation knob 3 made spacer pin 5 contradict in first-order inflection point 422 department of shifting, realize shifting into the operation that N kept off, realized P, N, R, D's nimble operation of shifting, in addition for reinforcing to shift and feel, make to shift more smoothly, first-order inflection point 422 and second order inflection point 423 smooth and easy transition of shifting set up.

Specifically, as shown in fig. 2, a plurality of cylindrical guide cavities 21 are arranged on the lower housing 2, a positioning hole 22 is formed in the bottom of each cylindrical guide cavity 21, one end of the limit pin 5 is inserted into the cylindrical guide cavity 21 after being sleeved with the reset spring 6 and is connected with the fastening nut 7 after being extended out of the positioning hole 22, the top end of the limit pin 5 is abutted to the gear tooth-shaped groove 42 by adjusting the fastening nut 7, meanwhile, the elasticity of the reset spring 6 is adjusted, the cylindrical guide cavities 21 play a role in elastic guide returning, the effect of automatic returning of the knob 3 is better, and gear switching is more flexible and smooth. Specifically, the limiting pin 5 comprises a connecting rod 51 and a gear shifting positioning head 52, one end of the connecting rod 51 is connected with the gear shifting positioning head 52, the damaged gear shifting positioning head 52 is convenient to repair and replace, the end portion of the gear shifting positioning head 52 is in a bullet head shape, friction generated when the gear shifting positioning head 52 is in contact with the gear tooth-shaped groove 42 is reduced, the sliding and shifting process of the gear shifting positioning head 52 on the gear tooth-shaped groove 42 is smoother, the reset spring 6 is sleeved in the middle of the connecting rod 51, the outer diameter of the reset spring 6 is smaller than that of the gear shifting positioning head 52, the reset spring 6 is clamped between the gear shifting positioning head 52 and the bottom of the cylindrical guide cavity 21, an outer thread section is arranged at the other end of the connecting rod 51 and extends out of the positioning hole 22 to be in threaded connection with the fastening nut.

The working principle of the self-resetting knob gear shifting control mechanism is as follows: the initial position of gear shifting is P gear, when P gear is shifted, the left slight-turning knob or the right slight-turning knob 3 enables the limiting pin 5 to abut against a first-order gear shifting inflection point 422 of the gear tooth-shaped groove 42, the gear rotates by the same angle, the gear drives the signal gear 9 to rotate by the same angle, the Hall sensor on the PCB 8 senses an angular displacement change signal of the signal gear 9 and transmits the angular displacement change signal to the transmission control unit TCU, the TCU makes judgment and controls the gear shifting execution mechanism to realize the operation of shifting into N gear, and after the gear shifting is successful, the hand is released, and the knob 3 automatically returns to the return point 421 by means of the elastic force of the return spring 6 and the inclination of the gear tooth-shaped groove; in the same principle, the left-handed or right-handed knob 3 causes the limit pin 5 to abut against the second-order shift inflection point 423 at the end of the shift notch 42, so that the shift operation to the R shift position or the D shift position can be realized, when the R shift position or the D shift position is performed, the left-handed or right-handed knob 3 causes the limit pin 5 to abut against the first-order shift inflection point 422, so that the shift operation to the N shift position can be realized, and when the N shift position is performed, the P shift position is performed by pressing the knob 3 (i.e., pressing the P shift position).

The foregoing is merely illustrative of some of the principles of the present invention and the description is not intended to limit the invention to the specific constructions and applications shown, so that all modifications and equivalents that may be utilized are within the scope of the invention.

Claims

1. The utility model provides a from knob operating mechanism that shifts that restores to throne, its characterized in that, includes casing (1), casing (2), knob (3) down, rotor (4), spacer pin (5) and reset spring (6) reset, go up casing (1) and set up down between casing (2) rotor (4) resets, rotor (4) resets is including keeping off a position flute profile (42) that cup joints fixed part (41) and circumference and set up, cup joint fixed part (41) axial with knob (3) are fixed continuous, keep off position flute profile (42) with the tip conflict cooperation of spacer pin (5), cup joint on spacer pin (5) location is in down on casing (2) after reset spring (6).

2. The self-resetting knob shift operating mechanism of claim 1, wherein: cup joint fixed part (41) including the integral type setting cup joint section (411) and shift the location section (412), cup joint section (411) through the fixed axle with knob (3) are fixed continuous, the external diameter of shift the location section (412) is greater than the external diameter of cup joint section (411), shift the location section (412) and set up a plurality ofly along its circumference keep off position tooth-shaped groove (42).

3. The self-resetting knob shift operating mechanism of claim 2, wherein: keep off position flute profile (42) and set up to the open slot that the cross-section is isosceles triangle, including returning position point (421), first-order inflection point (422) and the second order inflection point (423) of shifting, the top center that keeps off position flute profile (42) sets up return position point (421), the center department of the both sides that keep off position flute profile (42) sets up respectively first-order inflection point (422) of shifting, the both ends that keep off position flute profile (42) set up respectively inflection point (423) are shifted to the second order.

4. The self-resetting knob shift operating mechanism of claim 3, wherein: the position of pushing down of returning position point (421) keeps off the signal position for P, and first-order inflection point (422) department of shifting keeps off the signal position for N, the second order inflection point (423) of shifting of the one end that keeps off position gullet (42) keeps off the signal position for R, the second order inflection point (423) of shifting of the other end that keeps off position gullet (42) keeps off the signal position for D.

5. The self-resetting knob shift operating mechanism of claim 3, wherein: the first-order shifting inflection point (422) and the second-order shifting inflection point (423) are arranged in a smooth transition mode.

6. The self-resetting knob shift operating mechanism according to any one of claims 2 to 5, characterized in that: the lower shell (2) is provided with a plurality of cylindrical guide cavities (21), the bottoms of the cylindrical guide cavities (21) are provided with positioning holes (22), one end of the limiting pin (5) is sleeved with the reset spring (6) and then inserted into the cylindrical guide cavities (21), and the limiting pin is extended out of the positioning holes (22) and then connected with the fastening nut (7).

7. The self-resetting knob shift operating mechanism of claim 6, wherein: spacer pin (5) are including connecting rod (51) and shift position head (52), the one end of connecting rod (51) is connected shift position head (52), shift position head (52) with keep off position flute profile (42) sliding positioning cooperation, the middle part of connecting rod (51) is cup jointed reset spring (6), the external diameter of reset spring (6) is less than shift position head (52)'s external diameter, the other end of connecting rod (51) sets up the external screw thread section, the external screw thread section stretches out link to each other with fastening nut (7) screw thread behind locating hole (22).

8. The self-resetting knob shift operating mechanism of claim 7, wherein: the end of the gear shifting positioning head (52) is arranged in a bullet head shape.