CN113202923B

CN113202923B - Parking mechanism capable of realizing emergency P gear access

Info

Publication number: CN113202923B
Application number: CN202110699273.XA
Authority: CN
Inventors: 常亮; 孙家宦; 吴飞
Original assignee: Dongfeng Dingxin Power System Technology Co ltd
Current assignee: Zhixin Technology Co Ltd
Priority date: 2021-06-23
Filing date: 2021-06-23
Publication date: 2022-06-17
Anticipated expiration: 2041-06-23
Also published as: CN113202923A

Abstract

The application relates to a parking mechanism capable of realizing emergent P gear entering and exiting, which relates to the field of parking mechanisms and comprises a gear shifting drum, a rocker arm and an adjusting mechanism, wherein the gear shifting drum is provided with a front end and a rear end which are oppositely arranged; one end of the rocker arm is connected with the power driving part through a connecting piece, the other end of the rocker arm is provided with a cavity, a locking mechanism capable of moving forwards and backwards is arranged in the cavity, and when the locking mechanism moves backwards, the locking mechanism can be clamped into the mounting groove; the adjusting mechanism is detachably connected with the locking mechanism and used for adjusting the locking mechanism to move back and forth. In the emergency situation of the parking mechanism capable of realizing the emergency P-gear access, the locking mechanism can be quickly separated from and enter the mounting groove, the rocker arm is rotated, the pawl and the ratchet wheel are meshed or separated, the P-gear access function is realized, the number of parts required by the whole device is small, and the cost is greatly reduced.

Description

Parking mechanism capable of realizing emergency P gear access

Technical Field

The application relates to the field of parking mechanisms, in particular to a parking mechanism capable of achieving emergency P gear entering and exiting.

Background

With the development of automobile technology, people pay more attention to vehicle safety. The P-gear parking system can lock the vehicle when the vehicle stops or the speed is low, so that safety accidents caused by vehicle sliding when the vehicle runs on a slope are prevented, and the safety performance is improved. Therefore, the parking mechanism is a safety device for preventing the vehicle from sliding, the vehicle can be parked at a certain position reliably without time limitation, and the advantages are very obvious. Therefore, vehicles equipped with the P-range parking system are increasing, and the application is becoming wider and more research is being conducted.

The electronic parking shift type automatic transmission controls the transmission by electrically transmitting a control signal of a shift lever installed in a cab to the automatic transmission. The automatic transmission has a parking mode in which a user or a serviceman can take measures such as dragging only when the parking mode is forcibly released if the vehicle cannot travel due to, for example, a traffic accident or if it is difficult to supply electric power due to discharge of a battery in the parking mode.

The existing electronic parking mechanism is limited by cost or space, and often has no function of entering and exiting the P gear in an emergency. Even if a device for entering and exiting the P gear in an emergency situation exists, the parking mechanism is very complicated, and the cost is increased.

In the related art, as the electronic parking mechanism in fig. 7, the electronic parking mechanism has a function of manually entering and exiting the P-gear, and the electronic parking mechanism includes larger parts such as a connecting arm, a rocker arm and a hook-shaped part, and the normal automatic entering and exiting of the P-gear is completed by driving a pull rod by a shift drum, a pin a of the connecting arm is matched with the shift drum, and the other side B is always matched with the hook-shaped part; in an emergency, the rocker arm C is manually rotated, and the part B of the connecting arm rotates along the axis as shown below, so that the connecting arm is separated from the hook-shaped part, and the aim of disconnecting and shifting the power of the drum is fulfilled.

However, the parking mechanism has many parts, a large structure and complicated matching of a plurality of parts, and the cost is greatly increased by arranging the parts in a narrow space.

Disclosure of Invention

The embodiment of the application provides a parking mechanism capable of entering and exiting a P gear in an emergency, and aims to solve the problems that in the related art, a device for entering and exiting the P gear in an emergency situation is complex in structure and cost is increased.

The utility model provides a can realize urgent business turn over parking mechanism of P shelves which includes:

the gear shifting drum is provided with a front end and a rear end which are oppositely arranged, at least partial area of the edge of the front end of the gear shifting drum radially extends to form a mounting plate, and a mounting groove is formed in the mounting plate along the front-rear direction;

the power driving part is arranged on the upper end of the rocker arm, one end of the rocker arm is connected with the power driving part through a connecting piece, the other end of the rocker arm is provided with a cavity, a locking mechanism capable of moving forwards and backwards is arranged in the cavity, and when the locking mechanism moves backwards, the locking mechanism can be clamped into the mounting groove;

and the adjusting mechanism is detachably connected with the locking mechanism and is used for adjusting the locking mechanism to move back and forth.

In some embodiments, the lock mechanism includes a rod-like member having a lock portion at a rear end thereof, the rod-like member being recessed radially inward by a recess having a guide surface at an upper end of a side wall thereof, the side wall being located adjacent to a side of the shift drum;

adjustment mechanism can follow shaft-like piece radial movement, just adjustment mechanism has joint portion, this joint portion have with guide face complex fitting surface, when joint portion follows shaft-like piece is radial to when shaft-like piece removes, the fitting surface with the guide face pastes mutually, so that locking portion can block in the mounting groove.

In some embodiments, a first shutter plate extends radially outward from a side wall of the shutter plate adjacent to the shift drum, the guide surface is provided on a side of the shutter plate remote from the rod-like member, the rod-like member forms the locking portion at a rear end portion of the shutter plate, and a cross-sectional diameter of the first shutter plate is larger than a cross-sectional diameter of the cavity.

In some embodiments, the cavity includes a first cavity and a second cavity which are arranged in a front-back direction and are communicated with each other, the diameter of the cross section of the first cavity is larger than that of the cross section of the second cavity, an elastic member sleeved on the rod-shaped member is arranged in the first cavity, one end of the elastic member abuts against a transition surface of the first cavity and the second cavity, and the other end of the elastic member is fixedly connected with the rod-shaped member.

In some embodiments, a second baffle plate extends radially from a side of the rod-shaped member away from the shift drum, the elastic member is fixed on the second baffle plate, and the area of the second baffle plate is larger than the cross-sectional area of the first cavity.

In some embodiments, the resilient member is a spring.

In some embodiments, the adjusting mechanism comprises a screw, a column part at the lower end of the screw forms the clamping part, the cross section of the bottom end of the column part is in a V shape, and the matching surface is formed on one surface close to the shift drum.

In some embodiments, an adjusting portion is fixed at the front end of the rocker arm, and the rocker arm can be driven to rotate by rotating the adjusting portion.

In some embodiments, the conditioning portion comprises a hexagonal prism.

In some embodiments, the mounting groove further communicates with a guide passage communicating with the shift drum central region, and the adjustment portion is moved so that the detent mechanism can be snapped into the mounting groove through the guide passage.

In the automatic mode, the locking part of the rod-shaped member is clamped into the mounting groove, the P gear in the automatic mode is irrelevant to the screw, and the screw is only clamped in the groove at the moment, wherein the P gear in the automatic mode is the prior art, and therefore the description is omitted.

When emergent emergency, if be in P shelves this moment, in the mounting groove is gone into to the locking portion card of shaft-like piece promptly, consequently need manually to relieve P shelves, need utilize screwdriver to unscrew the screw this moment, the screw breaks away from in the recess promptly, the spring does not receive the screw influence this moment, drive the quick return of shaft-like piece, and locking portion can break away from the mounting groove, make the power of shift drum disconnected, then rotate the rocking arm, make pawl and ratchet be in the separation state, realize out P shelves function, after play P shelves, utilize fixed plate and bolt to fix the rocking arm.

When the gear shift drum enters a P gear, a bolt on the fixing plate needs to be unscrewed, the fixing plate drives the hexagonal prism to rotate so as to drive the rocker arm to rotate, the screw is screwed down by the screwdriver, in the process that the screw is continuously screwed down, the sharp part at the lower end of the screw is firstly contacted with the guide surface at the upper end of the first baffle plate, the matching surface of the screw is matched and extruded with the guide surface along with the continuous screwing of the screw, the guide surface is subjected to a component force towards the rear end of the gear shift drum and a component force moving downwards, and under the limiting effect of the cavity, the rod-shaped part cannot move downwards and only moves towards the gear shift drum, the matching surface is separated from the guide surface along with the gradual screwing of the screw, the elasticity of the spring is overcome by the screw, at the moment, the locking part needs to be ensured to be attached to the side wall of the central groove of the gear shift drum, when the gear shift drum is rotated, the guide channel and the locking part are released from the locking part, at the moment, the guide channel is introduced into the mounting groove, at the moment, the rocker arm returns to the state when the rocker arm is at the P gear at the beginning, and at the moment, the pawl and the ratchet wheel are engaged and clamped to finish the P gear entering.

The beneficial effect of this application is as follows:

the embodiment of the application provides a parking mechanism that can realize urgent business turn over P shelves, owing to set up adjustment mechanism and locking mechanism, under emergency, when adjusting locking mechanism along the fore-and-aft to the removal through adjustment mechanism, consequently can make locking mechanism break away from or pass in and out in the mounting groove fast, the rocking arm rotates for ratchet and pawl meshing or separation in the power driving piece, realize passing in and out P shelves function fast, and the required part of whole device is few, greatly reduced the cost.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a schematic perspective view of an embodiment of the present disclosure;

fig. 2 is a schematic perspective view of an embodiment of the present disclosure;

FIG. 3 is a right side view of the shift drum in a manual mode with power disengaged as provided by the exemplary embodiment of the present application;

FIG. 4 is a cross-sectional view taken along line A-A of FIG. 3;

FIG. 5 is a right side view of the shift drum in a power connected state as provided by the embodiment of the present application;

FIG. 6 is a cross-sectional view taken along line B-B of FIG. 5;

fig. 7 shows a parking mechanism with emergency P-range in and out in the prior art.

In the figure: 1. a shift drum; 2. mounting a plate; 3. mounting grooves; 4. a rocker arm; 5. a cavity; 51. a first cavity; 52. a second cavity; 6. a locking mechanism; 61. a rod-like member; 62. a lock part; 63. a groove; 7. an adjustment mechanism; 71. a clamping part; 72. a screw; 8. a guide surface; 9. a mating surface; 10. a first baffle plate; 11. an elastic member; 12. a second baffle; 13. an adjustment section; 14. a guide channel.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The embodiment of the application provides a parking mechanism that can realize urgent business turn over P shelves, it can solve among the correlation technique parking mechanism part many, and the structure is bigger, and a plurality of parts cooperation are used very complicacy, set up so many parts in narrow and small space for cost greatly increased.

In order to solve the above problems, the present application provides a parking mechanism capable of entering and exiting P-range urgently as shown in fig. 1-6, and the specific scheme is as follows:

a parking mechanism capable of realizing emergent P-gear entering and exiting comprises a gear shifting drum 1, a rocker arm 4 and an adjusting mechanism 7, wherein the gear shifting drum 1 is provided with a front end and a rear end which are oppositely arranged, at least part of the edge of the front end of the gear shifting drum 1 radially extends to form a mounting plate 2, the mounting plate 2 and the gear shifting drum 1 are of an integral structure, and a mounting groove 3 is arranged in the mounting plate 2 along the front-back direction;

in fig. 1, the side where the adjusting mechanism 7 and the mounting plate 2 are located is a front end, correspondingly, the other end is a rear end, the mounting plate 2 extends radially from a part of the edge area of the front end of the shift drum 1, the mounting plate 2 and the shift drum 1 are of an integral structure, the strength of the structure of the shift drum 1 can be ensured, meanwhile, the bottom of the mounting groove 3 can be in a closed state or an open structure, and in the application, referring to fig. 4, the open structure is preferred, and the lightness of the structure can be ensured.

The rocker arm 4 is connected with the power driving part through a connecting part at one end of the rocker arm 4, the connecting part and the power driving part are in the prior art, so that the explanation is not needed, a cavity 5 is arranged at the other end of the rocker arm 4, a locking mechanism 6 capable of moving forwards and backwards is arranged in the cavity 5, and when the locking mechanism 6 moves backwards, the locking mechanism 6 can be clamped into the mounting groove 3;

it should be understood that, in the prior art, there is also an electronic parking mechanism without a manual P-range emergency entry and exit function, and the structure thereof generally includes a link, a power driver, and a shift drum, except that there is no locking mechanism 6, an adjusting mechanism 7, and the like, and the link is a link having elasticity.

And the adjusting mechanism 7 is detachably connected with the locking mechanism 6 and used for adjusting the locking mechanism 6 to move back and forth.

In an automatic mode, i.e. AUTO mode, in which the adjustment mechanism 7 is engaged with the locking mechanism 6, the locking mechanism 6 is snapped into the mounting groove 3, and the locking mechanism 6 is engaged with the mounting groove 3 to achieve power connection of the shift drum 1, when in an emergency situation, the vehicle cannot travel due to, for example, a traffic accident or if it is difficult to supply electric power due to battery discharge in the parking mode, or otherwise, a user or a serviceman can take measures such as towing only when the parking mode is forcibly released, and it is necessary to separate the locking mechanism 6 from the mounting groove 3, so that the power of the shift drum 1 is disconnected.

In some embodiments, referring to fig. 4, the locking mechanism 6 includes a rod-shaped member 61, the rear end of the rod-shaped member 61 has a locking portion 62, the rod-shaped member 61 is recessed with a groove 63 in a radial direction, the groove 63 may be disposed annularly, or a partial region of the rod-shaped member 61 is recessed downward, which is not limited herein, for convenience of the process, in this application, the groove 63 is designed annularly, the upper end of the side wall of the groove 63 has a guiding surface 8, and the side wall is close to the shift drum 1 side;

the adjusting mechanism 7 can be radially moved along the rod-shaped member 61, and the adjusting mechanism 7 has a clamping portion 71, the clamping portion 71 has a matching surface 9 matched with the guide surface 8, when the clamping portion 71 is radially moved towards the rod-shaped member 61 along the rod-shaped member 61, the matching surface 9 is attached to the guide surface 8, so that the locking portion 62 can be clamped into the mounting groove 3.

In the specific implementation stage, referring to fig. 4, if it is necessary to manually disengage from the P-range, the adjusting mechanism 7 needs to be moved upward to disengage the engaging portion 71 from the groove 63, at this time, the rod-shaped member 61 can be moved leftward by toggling the rod-shaped member 61 to disengage the rod-shaped member 61 from the mounting groove 3, and then the rocker arm 4 is rotated to separate the ratchet from the pawl, thereby achieving the P-range.

When the gear P needs to be entered, referring to fig. 6, the adjusting mechanism 7 moves downward, so that the clamping portion 71 abuts against the guide surface 8, as the adjusting mechanism 7 continues to move downward, the guide surface 8 abuts against the matching surface 9 of the clamping portion 71, then the adjusting mechanism 7 continues to move downward, so that the guide surface 8 is separated from the matching surface 9, and when the clamping portion 71 is clamped into the groove 63, the rod-shaped member 61 can be clamped into the mounting groove 3, so that the matching locking is completed.

In the present application, the guiding surface 8 and the mating surface 9 are uniformly inclined straight surfaces, wherein the guiding surface 8 faces the front upper end of the shift drum 1, and the mating surface faces the rear lower end of the shift drum 1, when the adjusting mechanism 7 moves downwards, i.e. the guiding surface 8 is attached to the mating surface 9, the force applied to the guiding surface 8 can be divided into a downward force and a force applied to the rear end of the shift drum 1, and since the locking mechanism 6 is arranged in the cavity 5, the rod-shaped member 61 is limited by the cavity 5, so that the guiding surface 8 only moves backwards when being pressed, and the rod-shaped member 61 is driven to move backwards, so that the card can be inserted into the mounting groove 3.

On the basis of the above embodiment, referring to fig. 4 and 6, the side wall forming the recessed groove 63 on the side close to the shift drum 1 is extended radially outward by the first shutter 10, the guide surface 8 is provided on the side of the shutter away from the rod-like member 61, the rod-like member 61 forms the locking portion 62 on the rear end portion of the shutter, and the cross-sectional diameter of the first shutter 10 is larger than the cross-sectional diameter of the cavity 5.

And further, the cross-sectional diameter of the first baffle 10 is larger than that of the mounting groove 3, when the guiding surface 8 is pressed, the locking part 62 can be clamped into the mounting groove 3, and the first baffle 10 can be abutted against the side wall of the mounting plate 2 forming the mounting groove 3, and similarly, when the rod-shaped member 61 moves towards the front end, the first baffle 10 can be abutted against the side wall forming the cavity 5, and the specific shape of the first baffle 10 is not limited, and can be cylindrical, square or other shapes in the prior art, and is not limited herein.

Referring to fig. 4 and 6, the cavity 5 includes a first cavity 51 and a second cavity 52 which are arranged in a front-back direction and are communicated with each other, a cross-sectional diameter of the first cavity 51 is larger than a cross-sectional diameter of the second cavity 52, so as to facilitate manufacturing of the first cavity 51 and the second cavity 52, in the present application, the first cavity 51 and the second cavity 52 are both cylindrical, an elastic member 11 sleeved on a rod-shaped member 61 is arranged in the first cavity 51, one end of the elastic member 11 abuts against a transition surface of the first cavity 51 and the second cavity 52, and the other end is fixedly connected with the rod-shaped member 61.

It will be appreciated that the resilient member 11 has a stressed and an unstressed state, wherein figure 4 shows the unstressed state of the resilient member 11, figure 6 shows the stressed state of the resilient member 11, when the adjustment mechanism 7 is gradually moved downwards, the whole rod-like member 61 is now moved towards the rear end, so that the resilient member 11 is forced, when the adjusting mechanism 7 moves upwards, the rod-shaped member 61 is not stressed, the elastic member 11 recovers the elastic force, one end of the elastic element 11 is abutted against the transition surface of the first cavity 51 and the second cavity 52, and the other end is fixedly connected with the rod-shaped element 61, so that the rod-shaped element 61 is automatically driven to move towards the front end, the elastic member 11 will not be separated from the rod-like member 61, and since one end of the elastic member 11 abuts against the transition surface of the first cavity 51 and the second cavity 52 and the cross-sectional diameter of the first baffle 10 is larger than the cross-sectional diameter of the cavity 5, the rod-like member 61 is also restricted from being separated from the cavity 5.

In some embodiments, a second baffle plate 12 extends radially from a side of the rod-like member 61 away from the shift drum 1, the elastic member 11 is fixed on the second baffle plate 12, and the area of the second baffle plate 12 is larger than the cross-sectional area of the first cavity 51.

The structure and shape of the second baffle 12 are not limited, when the locking part 62 can be clamped into the mounting groove 3, the second baffle 12 covers the front end of the first cavity 51, the second baffle 12 can have a certain limiting effect, and meanwhile, because the second baffle 12 covers the front end of the first cavity 51, some dust can be effectively prevented from entering the first cavity 51.

In some embodiments, the elastic member 11 is a spring, that is, one end of the spring abuts against the transition surface between the first cavity 51 and the second cavity 52, and the other end of the spring is fixed on the rod-shaped member 61, the spring in this application is a commercially available product, and is not limited herein, it is understood that the elastic member 11 is not only a choice of a spring, and other elastic materials in the prior art, for example, rubber, may be adopted, and the rubber is disposed in the first cavity 51 and is sleeved on the rod-shaped member 61, and may also play a role in resetting and buffering, and details are not described herein.

Referring to fig. 3 to 6, the adjusting mechanism 7 includes a screw 72, a column portion at a lower end of the screw 72 forms the snap-in portion 71, a cross section of a bottom end of the column portion is "V" shaped, and a surface close to the shift drum 1 forms the matching surface 9.

The screw 72 is a common screw sold on the market, and therefore, detailed description of the model and the brand is omitted, a plate is arranged on the rocker arm 4 to enable the screw 72 to be screwed in and screwed out, wherein the screwing-in state is that the adjusting mechanism 7 moves downwards along the radial direction of the rod-shaped member 61, the screwing-out state is that the adjusting mechanism 7 moves upwards along the radial direction of the rod-shaped member 61, when in the screwing-in state, a sharp part at the bottom end of the screw 72 is firstly contacted with the guide surface 8, as the screw 72 is screwed in continuously, the sharp part at the bottom end of the screw 72 can press the rod-shaped member 61 to move towards the shift drum 1, so that the screw 72 can be inserted into the groove 63, when the screw 72 is gradually inserted into the bottom of the groove 63, the screw 72 is close to one surface of the shift drum 1, namely, the matching surface 9 is pressed with the guide surface 8, so that the rod-shaped member 61 is forced rightwards, and when the screw 72 is inserted into the bottom of the groove 63, when the mating surface 9 and the guide surface 8 are also separated, the side wall of the columnar portion of the screw 72 abuts against the side wall of the side close to the shift drum forming the recessed groove 63, the rear end locking portion 62 of the rod-like member 61 is inserted into the mounting groove 3, and the shift drum 1 is in the power connection state.

When the screw 72 is screwed out, the rod-like member 61 is not restricted at this time, and the locking portion 62 of the rod-like member 61 can be disengaged from the mounting groove 3, and the shift drum 1 is in the power disengaged state.

In the present application, the main function of the screw 72 is to achieve the lifting and overcome the elastic force of the spring, therefore, in another embodiment, another lifting mechanism in the prior art can be adopted, the lifting mechanism adopts a screw rod lifting mode, the bottom of the screw rod adopts a sharp-pointed part structure at the bottom of the screw 72, a spring pressing structure can also be adopted, a pressing rod is arranged in a spring pressing mode, a spring is sleeved on the pressing rod, one end of the spring is connected with the pressing rod, one end of the spring is fixed on the rocker arm 4, an elastic block is arranged on the side wall of the pressing rod, one side of the elastic block facing the rod-shaped member 61 is arc-shaped, the upper side of the elastic block is horizontal, a movable groove convenient for the pressing rod to press is arranged on the rocker arm 4, a clamping groove matched with the elastic block is arranged on the side wall forming the movable groove, when the pressing rod is pressed, the elastic block can be clamped into the clamping groove, when the elastic block is clamped into the clamping groove, in recess 63 was also gone into to the bottom of pressing the depression bar this moment, utilized to press the depression bar to overcome the elasticity of spring, then continued to press the depression bar for the bottom card of pressing the depression bar goes into the bottom of recess 63, and the elasticity piece roll-off and downstream in from the draw-in groove this moment, spring recovery elasticity this moment drives the elasticity piece and kick-backs fast, makes and breaks away from with recess 63 according to depression bar bottom, then rotates rocking arm 4, realizes out P shelves function this moment.

When under emergency state, need the manual P shelves of breaking away from after, shift drum 1 and power disconnection this moment, receive the elastic action of connecting piece this moment for rocking arm 4 can swing, be difficult for making locking mechanism 6 on rocking arm 4 block into in mounting groove 3 again, consequently need break away from the back at locking mechanism 6 from mounting groove 3, break away from P shelves promptly after, fix rocking arm 4, because the gearbox inner space is limited, in order to rotate rocking arm 4 well, rocking arm 4's front end is fixed with regulating part 13, and rotation regulating part 13 can drive rocking arm 4 rotates, as preferred, regulating part 13 includes the hexagonal prism.

Referring to fig. 1 and 2, the hexagonal prism is fixedly connected with the rocker arm 4, a fixing plate matched with the hexagonal prism is sleeved on the hexagonal prism, the whole rocker arm 4 is moved by moving the fixing plate, a bolt is arranged on the fixing plate and is fixed with the gearbox through the bolt, so that the fixing plate is fixed, the rocker arm 4 is fixed, in a normal state, namely, the locking mechanism 6 is clamped into the mounting groove 3, the fixing plate is fixed at another position of the gearbox through the bolt, and only in an emergency state, the rocker arm 4 needs to be fixed under the condition that the rocker arm needs to be separated from the P gear.

In a further embodiment, the adjusting portion 13 is not only a hexagonal prism but also a polygonal prism structure such as a pentagonal prism, a quadrangular prism, etc., and other structures in the prior art may be adopted as long as the fixing plate can be matched with the adjusting portion 13.

Referring to fig. 2, the mounting groove 3 is further communicated with a guide channel 14, the guide channel 14 is communicated with the central area of the shift drum 1, and the adjusting part 13 is moved so that the locking mechanism 6 can be clamped into the mounting groove 3 through the guide channel 14.

When getting into P shelves, need block 6 card into mounting groove 3 in, because whole gearbox inner space is narrow and small, directly block 6 card into the mounting groove 3 in the degree of difficulty than higher, consequently be provided with guide channel 14, this guide channel 14 and mounting groove 3 and shift drum 1 central area intercommunication drive hexagonal prism through the fixed plate and remove, and then drive rocking arm 4 and remove, can make the block 6 in the rocking arm 4 block into in the mounting groove 3 through guide channel 14.

In the present application, the guiding channel 14 is disposed on the mounting plate 2, and in the actual design process of the guiding channel 14, the joint of the guiding channel 14 and the central area of the shift drum 1 is designed to protrude toward the axis of the shift drum 1 along the radial direction, so that when the shift stage P is shifted again, because the locking portion 62 is attached to the side wall of the central groove of the shift drum 1, when the shift drum 1 is rotated, the locking portion 62 can be attached to the side wall to rotate relatively until the locking portion is clamped into the protruding portion of the guiding channel 14, so that the locking mechanism 6 is clamped into the mounting groove 3, at this time, the position of the rocker arm 4 is changed, and at this time, the pawl and the ratchet wheel in the power driving part are in the engaged and locked state, so as to realize the shift stage P function.

The working principle of the application is as follows:

in the automatic mode, when the gear is in the P position, the locking portion 62 of the rod-shaped member 61 is clamped into the mounting groove 3, the gear P in the automatic mode is irrelevant to the screw 72, and the screw 72 is only required to be clamped into the groove 63 at this time, wherein the gear P in the automatic mode is the prior art, and therefore details are not described herein.

When emergency happens, if the gear P is located at the moment, namely the locking part 62 of the rod-shaped member 61 is clamped into the mounting groove 3, the gear P needs to be manually released, at the moment, the screw 72 needs to be unscrewed by a screwdriver, namely, the screw 72 is separated from the groove 63, at the moment, the spring is not influenced by the screw 72, the rod-shaped member 61 is driven to return quickly, the locking part 62 can be separated from the mounting groove 3, the power of the gear shifting drum is disconnected, then the rocker arm 4 can be rotated, the locking part 62 is located in the central groove of the gear shifting drum 1, the power of the connecting piece and the power driving piece is disconnected, namely, the pawl and the ratchet wheel are in a separated state, the gear P function is realized, and after the gear P is located, the rocker arm 4 is fixed by a fixing plate and a bolt.

When entering the P gear, the bolt on the fixing plate needs to be loosened, the fixing plate drives the hexagonal prism to rotate so as to drive the rocker arm 4 to rotate, the screw 72 is screwed down by the screwdriver, in the process that the screw 72 is continuously screwed down, the sharp part at the lower end of the screw 72 is firstly contacted with the guide surface at the upper end of the first baffle plate 10, the matching surface 9 of the screw 72 is matched and extruded with the guide surface 8, so that the guide surface 8 receives a component force towards the rear end of the shift drum 1 and a component force moving downwards, and is limited by the cavity, the rod-shaped member 61 cannot move downwards, only moves towards the shift drum 1, and as the screw 72 is gradually screwed in, the matching surface 9 is separated from the guide surface 8, the elastic force of the spring is overcome by the screw 72, at the moment, the locking part 62 needs to be ensured to be attached to the side wall of the central groove of the shift drum 1, and when the shift drum 1 is rotated, the guide channel 14 is released from the locking part 62, at this time, the locking part 62 is led into the guide channel 14 and further into the mounting groove 3, so that power connection of the gear shift drum 1 is realized, the rocker arm 4 is restored to the state when the gear shift is at the beginning, and the ratchet and the pawl in the power driving piece are engaged and locked at this time, so that the gear shift is realized.

On the other hand, the power connection of the shift drum 1 can also be achieved by moving the rocker arm 4 instead of rotating the shift drum 1, so that the latching portion 62 is introduced into the guide channel 14 and thus into the mounting groove 3.

In the description of the present application, it should be noted that the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience in describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present application. Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

It is noted that, in the present application, relational terms such as "first" and "second", and the like, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The above description is merely exemplary of the present application and is presented to enable those skilled in the art to understand and practice the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The utility model provides a can realize emergent business turn over parking mechanism of P shelves which characterized in that, it includes:

the gear shifting drum (1) is provided with a front end and a rear end which are oppositely arranged, at least partial area of the edge of the front end of the gear shifting drum (1) extends radially to form a mounting plate (2), and a mounting groove (3) is formed in the mounting plate (2) in the front-back direction;

the power driving device comprises a rocker arm (4), one end of the rocker arm (4) is connected with a power driving part through a connecting piece, the other end of the rocker arm (4) is provided with a cavity (5), a locking mechanism (6) capable of moving forwards and backwards is arranged in the cavity (5), and when the locking mechanism (6) moves backwards, the locking mechanism (6) can be clamped into a mounting groove (3);

the adjusting mechanism (7) is detachably connected with the locking mechanism (6) and used for adjusting the locking mechanism (6) to move back and forth;

the locking mechanism (6) comprises a rod-shaped member (61), the rear end of the rod-shaped member (61) is provided with a locking part (62), the rod-shaped member (61) is inwards recessed with a groove (63) along the radial direction, the upper end of the side wall of the groove (63) is provided with a guide surface (8), and the side wall is close to one side of the gear shifting drum (1);

adjustment mechanism (7) can be followed shaft-like piece (61) radial movement, just adjustment mechanism (7) have joint portion (71), and this joint portion (71) have with guide face (8) complex fitting surface (9), when joint portion (71) are followed shaft-like piece (61) radial to when shaft-like piece (61) moves, fitting surface (9) with guide face (8) paste mutually, so that locking portion (62) can be blocked in mounting groove (3).

2. The parking mechanism capable of realizing emergency P-gear access according to claim 1, characterized in that: a first baffle plate (10) extends radially outwards from the side wall of the side close to the shift drum (1) and provided with the groove (63), the guide surface (8) is arranged on the side of the baffle plate far away from the rod-shaped piece (61), the rod-shaped piece (61) is provided with the locking part (62) at the rear end part of the baffle plate, and the section diameter of the first baffle plate (10) is larger than that of the cavity (5).

3. The parking mechanism for enabling emergency entry and exit into P-range according to claim 2, wherein: the cavity (5) comprises a first cavity (51) and a second cavity (52) which are arranged in the front-back direction and are communicated with each other, the diameter of the section of the first cavity (51) is larger than that of the section of the second cavity (52), an elastic piece (11) sleeved on a rod-shaped piece (61) is arranged in the first cavity (51), one end of the elastic piece (11) is abutted to the transition surfaces of the first cavity (51) and the second cavity (52), and the other end of the elastic piece is fixedly connected with the rod-shaped piece (61).

4. The parking mechanism capable of realizing emergency P-gear access according to claim 3, characterized in that: one side of the rod-shaped part (61) far away from the gear shifting drum (1) extends radially to form a second baffle plate (12), the elastic part (11) is fixed on the second baffle plate (12), and the area of the second baffle plate (12) is larger than the cross-sectional area of the first cavity (51).

5. The parking mechanism capable of realizing emergency P-gear access according to claim 3, characterized in that: the elastic piece (11) is a spring.

6. The parking mechanism capable of realizing emergency P-gear access according to claim 1, characterized in that: the adjusting mechanism (7) comprises a screw (72), a columnar part at the lower end of the screw (72) forms the clamping part (71), the cross section of the bottom end of the columnar part is V-shaped, and the matching surface (9) is formed on one surface close to the gear shifting drum (1).

7. The parking mechanism capable of realizing emergency P-range access according to claim 6, characterized in that: the front end of the rocker arm (4) is fixed with an adjusting part (13), and the rotating adjusting part (13) can drive the rocker arm (4) to rotate.

8. The parking mechanism capable of realizing emergency entry and exit of the P range according to claim 7, wherein: the adjustment portion (13) includes a hexagonal prism.

9. The parking mechanism capable of achieving emergency entry and exit of P range according to claim 8, wherein: the mounting groove (3) is further communicated with a guide channel (14), the guide channel (14) is communicated with the central area of the gear shifting drum (1), and the adjusting part (13) is moved to enable the locking mechanism (6) to be clamped into the mounting groove (3) through the guide channel (14).