CN203594774U - Locking mechanism of self-adaptive multi-gear automatic transmission counter shaft cone clutch - Google Patents

Abstract

The utility model discloses a locking mechanism of a self-adaptive multi-gear automatic transmission counter shaft cone clutch, which comprises a cirque body axial outer taper sleeve, a cirque body axial inner taper sleeve and a transmission elastic element, wherein the cirque body axial outer taper sleeve is provided with a traction locking structure. The locking mechanism disclosed by the utility model is used for a transmission counter shaft and with the locking mechanism, separation and locking of the clutch in the self-adaptive transmission structure can be realized, the fact that the self-adaptive transmission can be used for multiple gears is possible, full advantages of the cam self-adaptive automatic transmission in the prior art are provided, sensitivity during the gear switching process can be ensured, a frustration feeling and a jamming feeling during the gear switching can be eliminated, comfort during driving can be improved, energy is further saved and consumption is further reduced, and power performance, economy, driving safety and comfort of a vehicle are greatly improved; and matching relationship between cams is used for locking the cone clutch, transmission clearance between transmission parts is eliminated, transmission precision and transmission efficiency are improved, and driving energy is saved.

Description

Locking Mechanism of Countershaft Cone Clutch in Adaptive Multi-speed Automatic Transmission

technical field

The utility model relates to a motor-driven transmission structure, in particular to a locking mechanism for a secondary shaft cone clutch of an adaptive multi-speed automatic transmission. the

Background technique

In the prior art, automobiles, motorcycles, and electric bicycles basically directly control the throttle or current control speed through a speed control handle or an accelerator pedal, or use a manual mechanical automatic transmission mechanism to realize speed change. The operation of the handle or accelerator pedal depends entirely on the driver's operation, which often causes a mismatch between the operation and the driving conditions, resulting in unstable operation of the motor or engine, and engine stalling. the

In motor vehicles, when the driver does not know the driving resistance and only operates the transmission device based on experience, the following problems inevitably exist: 1. When starting, going uphill and with a large load, due to the increase in driving resistance, the motor or engine is forced to The speed drop works in the low efficiency area. 2. Since there is no mechanical transmission to adjust the torque and speed, it can only be popularized and used in plain areas, and cannot be used in mountainous, hilly and heavy-load conditions, which reduces the scope of use; 3. The installation space at the drive wheel is small, and the engine or motor is installed It is difficult to accommodate automatic transmissions and other new technologies in the future; 4. It does not have the function of self-adaptation, and cannot automatically detect, correct and eliminate the driver's operation errors; Resistance is hard to match. 6. The continuation distance is short, the climbing ability is poor, and the adaptability range is small. the

In order to solve the above problems, the utility model of the utility model has developed a series of cam adaptive automatic transmission devices, which drive the cams by driving resistance to achieve the purpose of automatic gear shifting and adaptive matching of vehicle speed output torque according to the driving resistance. Good application effect; although the aforementioned cam adaptive automatic transmission has the above-mentioned advantages, its stability and high efficiency are greatly improved compared with the prior art, but the structure of some parts is relatively complicated, and the transmission volume is relatively large, especially without forming multiple gears. The structure of the transmission is not suitable for trucks; at the same time, due to the long transmission line, especially the slow gear, which affects the transmission efficiency, the stability is still not ideal; and there will be jamming during the process of clutching through the cam, which will affect the automatic shifting process. Smoothness; although the service life has been improved compared with the existing technology, according to the structural analysis, there is still room for improvement in the service life. The main thing is that when used for multi-speed transmission, the discontinuity of the transmission chain will cause the clutch instability of the taper clutch

Therefore, there is a need for an improvement to the above-mentioned cam adaptive automatic transmission device, which is suitable for all automobiles and even heavy-duty automobiles. Small changes cannot meet the problem of road use under complex conditions, and the stability is good, which further improves work efficiency and has better energy-saving and consumption-reducing effects; it can also realize multi-speed automatic transmission according to driving resistance, so that the transmission chain changes with the gear position And change, further reduce frustration and save driving energy consumption; at the same time, the shifting process is smooth without jamming, sensitive response, saving driving energy, reducing energy consumption, and further improving service life. It is suitable for use in all motor vehicles, making the whole The car situation is more stable. the

Utility model content

In view of this, the purpose of this utility model is to provide a locking mechanism for the auxiliary shaft cone clutch of an adaptive multi-speed automatic transmission, which can assist in locking the disengaged state of the tapered clutch, making it possible for the adaptive transmission to form a multi-speed structure. It is suitable for all cars and even heavy-duty cars. It can realize multi-speed automatic transmission according to driving resistance, further reduce the sense of frustration and save driving energy consumption; at the same time, the shifting process is smooth and free of jamming, responsive, saving driving energy and reducing energy consumption , and further improve the service life, suitable for all motor vehicles, making the vehicle situation more stable. the

The locking mechanism of the auxiliary shaft cone clutch of the self-adaptive multi-speed automatic transmission of the utility model includes the axially outer tapered sleeve of the annular body, the axially inner tapered sleeve of the annular body and the variable speed elastic element;

The axial inner tapered sleeve of the annular body is in transmission cooperation with a power input part for receiving the input power, the axial inner tapered sleeve of the annular body is provided with an axial inner tapered surface and is overlaid on the axial outer tapered sleeve of the annular body, The axial outer tapered sleeve of the annular body is provided with an axial outer tapered surface matched with the axial inner tapered surface of the axial inner tapered sleeve of the annular body; the axial outer tapered sleeve of the annular body is output power through the transmission of the cam pair;

The speed-changing elastic element exerts a pretightening force on the axial outer tapered sleeve of the annular body so that the outer tapered surface and the inner tapered surface of the axial inner tapered sleeve of the annular body fit the transmission; when the cam pair outputs power, a circular motion is generated. The axial component force of the axial outer taper sleeve of the ring body, the axial component force is opposite to the pretightening force direction of the variable speed elastic element;

The power input part also cooperates with the axial outer tapered sleeve of the annular body through the locking cam pair, and the axial outer tapered sleeve of the annular body rotates with the locking cam pair in the circumferential direction; An axial component force is applied to the outer tapered sleeve, and the direction of the axial component force is opposite to the pretightening force of the variable speed elastic element. the

Further, the locking cam pair is formed by the cam fit between the locking cam sleeve and the power input part through the locking end surface cam, and the locking cam sleeve and the axial outer taper sleeve of the annular body are in axial contact and rotated in the circumferential direction;

Further, the axial inner taper sleeve of the annular body is provided with a straight section of the axial inner taper sleeve of the annular body for transmission cooperation with the power input part, and the locking cam sleeve is sleeved on the straight section of the axial inner taper sleeve of the annular body And its outer circle has an annular limit groove, at least one limit screw is screwed into the straight section of the inner tapered sleeve of the ring body in the radial direction and pushed into the annular limit groove through the limit ball;

Further, the axial width of the annular limit groove is greater than the diameter of the limit ball;

Further, the detachable connection of the power input part is provided with an end face cam block, and the end face cam block cooperates with the locking cam sleeve to form a locking cam pair;

Further, the locking cam sleeve and the axially outer taper sleeve of the annular body are rotated and matched by balls;

Furthermore, the rotation fit between the axial outer tapered sleeve of the annular body and the locking cam sleeve is located on the step formed on the outer surface of the axial outer tapered sleeve of the annular body. the

Further, the axial outer taper sleeve of the annular body is sleeved on a follow-up support shaft through a spiral cam pair. the

The beneficial effects of the utility model are: the locking mechanism of the auxiliary shaft cone clutch of the self-adaptive multi-speed automatic transmission of the utility model is adopted in the multi-speed self-adaptive shifting structure, and is used for assisting in locking the cone clutch after shifting gears In order to ensure the normal transmission of each gear and avoid mutual interference, it makes the adaptive shifting of the multi-speed transmission possible. It has all the advantages of the existing cam adaptive automatic transmission device and eliminates the frustration and jamming of shifting. Feel, improve driving comfort, further save energy and reduce consumption, greatly improve the power, economy, driving safety and comfort of the vehicle;

At the same time, the utility model utilizes the cam and the matching relationship between the cams to lock the separation of the cone clutch. At the same time, it is also beneficial to eliminate the transmission gap between the transmission parts, improve the transmission accuracy and efficiency, save driving energy, and the structure is simple. Compact, scientific and reasonable transmission chain, good stability, better energy saving and consumption reduction effect, and reduced volume. the

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is described further. the

Fig. 1 is a structural representation of the utility model;

Fig. 2 is the schematic diagram of the structure of the axial outer taper sleeve of the torus;

Fig. 3 is an enlarged view of Fig. 1A. the

Detailed ways

Fig. 1 is a schematic structural diagram of the utility model, Fig. 2 is a schematic structural diagram of the axially outer tapered sleeve of the toroidal body, and Fig. 3 is a schematic structural diagram of the cam sleeve, as shown in the figure: the utility model's self-adaptive multi-speed automatic transmission secondary shaft taper surface The locking mechanism of the clutch includes the axial outer taper sleeve 2 of the annular body, the axial inner taper sleeve 3 of the annular body and the variable speed elastic element 1;

The inner tapered sleeve 3 in the axial direction of the annular body is matched with a power input part 9 for receiving the input power, and transmission methods such as splines can be used, and the power input part 9 can adopt an overrunning clutch to receive the power transmitted by the transmission; the ring The body axially inner taper sleeve 3 is provided with an axially inner tapered surface and is overlaid on the annular body axially outer taper sleeve 2, and the annular body axially outer taper sleeve 2 is provided with an axis with the annular body axially inner taper sleeve 3. The axially outer conical surface matched with the inner conical surface; the axial outer conical sleeve 2 of the annular body is output power through the transmission and cooperation of the cam pair;

The variable speed elastic element 1 exerts a pretightening force on the axial outer tapered sleeve 2 of the annular body so that the outer tapered surface and the inner tapered surface of the axial inner tapered sleeve 3 of the annular body are attached to the transmission; when the cam pair outputs power, The cam pair group generates an axial component force toward the axially outer tapered sleeve of the annular body, and the axial component force is opposite to the pretightening force direction of the variable speed elastic element;

The power input part 9 also cooperates with the axial outer tapered sleeve 2 of the annular body through the locking cam pair, and the axial outer tapered sleeve 2 of the annular body rotates with the locking cam pair in the circumferential direction; The ring body axially outer tapered sleeve exerts an axial component force, which is opposite to the direction of the preload force of the variable speed elastic element; between the annular body axially outer tapered sleeve 2 and the annular body axially inner tapered sleeve 1 When disengaging, use the traction force generated by the power input part to assist in locking the axial outer taper sleeve of the ring body after separation through the axial component force to prevent its reciprocating clutch and ensure the smoothness and stability of gear shifting. the

In this embodiment, the locking cam pair is formed by the cam fit between the locking cam sleeve and the power input part through the locking end face cam, and the locking cam sleeve and the axial outer taper sleeve of the annular body are in axial contact and rotate in the circumferential direction. Coordination; simple and compact structure, responsive and reliable locking. the

In this embodiment, the axial inner taper sleeve of the annular body is provided with a straight section of the axial inner taper sleeve of the annular body for transmission cooperation with the power input part, and the locking cam sleeve is sleeved on the axial inner cone of the annular body. The sleeve is straight and has an annular limit groove on its outer circle. At least one limit screw is screwed into the axial inner taper sleeve straight section of the ring body in the radial direction and pushed into the annular limit groove through the limit ball; in actual use, Multiple limit screws 5 need to be set along the circumferential direction to ensure balance; the locking cam sleeve should be axially limited to avoid excessive axial displacement caused by the locking end face cam at the traction force input end and achieve better stability Sex; as shown in the figure, in this embodiment, a ball is provided between the axial outer taper sleeve of the annular body and the locking cam sleeve to ensure smoothness and stability. the

In this embodiment, the power input part is detachably connected with an end face cam block, the end face cam of the power input part is arranged on the end face cam block, and the end face cam block cooperates with the locking cam sleeve to form a locking cam pair; This structure ensures the relative independence of the power input parts, and can be replaced according to the usage conditions, which is flexible and convenient. the

In this embodiment, the locking cam sleeve and the axially outer taper sleeve of the annular body are rotationally matched by balls; the cooperation is smooth and interference is avoided. the

In this embodiment, the rotation joint between the axial outer tapered sleeve of the annular body and the locking cam sleeve is located on the step formed by the outer surface of the axial outer tapered sleeve of the annular body; the structure is compact and the integrity is strong. the

In this embodiment, the axial outer taper sleeve of the circular ring body is sleeved on a follow-up support shaft through a helical cam pair; follow-up refers to free rotation setting; the rotation direction of the helical cam is related to the power output rotation direction, According to the above-mentioned records, those skilled in the art can know which direction the axial component force can be applied in which direction of the helical cam on the premise of knowing the direction of the power output, and will not repeat them here; although the support shaft is However, the helical cam pair prevents its rebound when the axially outer taper sleeve of the toroidal body and the axially inner taper sleeve of the toroidal body are separated, and together with the locking cam pair and the cam pair group, the clutch is realized. Separate lock. the

The power transmission route of the present embodiment:

Power input part→Axial inner tapered sleeve of annular body→Axial outer tapered sleeve of annular body→Cam pair group→Output;

At this time, other gears overrun (lower speed than this gear) or the clutch is disengaged (higher than this gear speed), and the resistance transmission route: cam subgroup → annular body axial outer tapered sleeve → compression variable speed elastic element;

Through the transmission cam pair, the axial force is applied to the axial outer taper sleeve of the annular body and the variable speed elastic element (speed change disc spring) is compressed. When the driving resistance increases to a certain level, the axial force is greater than the preload set by the speed change disc spring. Force and compress the variable speed disc spring, so that the axial inner taper sleeve of the annular body and the axial outer taper sleeve of the annular body are separated, and the power is output through a lower speed gear than this gear;

At this time, the power of the low-speed gear also passes through the following transmission routes: power output gear → cam pair → annular body axial outer tapered sleeve → compression variable speed elastic element; due to the two-way transmission effect of the cam pair, the power output gear drives the cam pair to the ring The body axially exerts an axial component force on the outer tapered sleeve, and under the action of the axial component force generated by the traction force of the cam pair and the locking cam pair, the axial inner tapered sleeve 3 of the annular body and the inner tapered sleeve 3 of the annular body are kept in low-speed transmission. Separation of the axial outer tapered sleeve 2. the

Finally, it is noted that the above embodiments are only used to illustrate the technical solutions of the present utility model without limitation. Although the utility model has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the utility model can be Modifications or equivalent replacements of the technical solutions without departing from the spirit and scope of the technical solutions of the utility model shall be covered by the claims of the utility model. the

Claims (8)

1. a locking mechanism for self adaption multidrive countershaft conical clutch, is characterized in that: comprise the axial external conical sleeve of cirque body, the axial inner conical drogue of cirque body and speed change elastic element;

The axial inner conical drogue of described cirque body coordinates and is used for receiving input power with a power input component transmission, the axial inner conical drogue of cirque body is provided with axial inner conical surface and is coated at the axial external conical sleeve of cirque body, and the axial external conical sleeve of cirque body is provided with the axial male cone (strobilus masculinus) matching with the axial inner conical surface of the axial inner conical drogue of cirque body; The axial external conical sleeve of cirque body coordinates outputting power by the transmission of the secondary group of cam;

Speed change elastic element applies the pretightening force of the inner conical surface laminating transmission that makes its male cone (strobilus masculinus) and the axial inner conical drogue of cirque body to the axial external conical sleeve of cirque body; When the secondary outputting power of described cam, produce the axial thrust load to the axial external conical sleeve of cirque body, this axial thrust load and speed change elastic element pretightening force opposite direction;

Power input component also coordinates with the axial external conical sleeve of cirque body by locking cam is secondary, and the axial external conical sleeve of cirque body and this locking cam pair are rotatably assorted at circumferencial direction; Locking cam pair applies axial thrust load to the axial external conical sleeve of cirque body, this axial thrust load and speed change elastic element pretightening force opposite direction.

2. the locking mechanism of self adaption multidrive countershaft conical clutch according to claim 1, it is characterized in that: locking cam pair coordinates and forms by locking end face cam by between locking cam cover and power input component, locking cam overlaps axial contact and circumferencial direction is rotatably assorted between the axial external conical sleeve of cirque body.

3. the locking mechanism of self adaption multidrive countershaft conical clutch according to claim 2, it is characterized in that: the axial inner conical drogue of cirque body is provided with the axial inner conical drogue direct tube section of cirque body for coordinating with the transmission of power input component, described locking cam is placed on the axial inner conical drogue direct tube section of cirque body in overlapping and its cylindrical has annular spacing groove, and at least one stop screw radially screws in the axial inner conical drogue direct tube section of cirque body and heads into annular spacing groove by spacing ball.

4. the locking mechanism of self adaption multidrive countershaft conical clutch according to claim 3, is characterized in that: the axial width of described annular spacing groove is greater than spacing ball diameter.

5. the locking mechanism of self adaption multidrive countershaft conical clutch according to claim 4, it is characterized in that: the detachable end cam piece that is connected with of described power input component, described end cam piece coordinates and forms locking cam pair with locking cam cover.

6. the locking mechanism of self adaption multidrive countershaft conical clutch according to claim 5, is characterized in that: between described locking cam cover and the axial external conical sleeve of cirque body, be rotatably assorted by ball.

7. the locking mechanism of self adaption multidrive countershaft conical clutch according to claim 6, is characterized in that: the axial external conical sleeve of cirque body and the locking cam cover place of being rotatably assorted are positioned on the step of the axial external conical sleeve outer surface formation of cirque body.

8. the locking mechanism of self adaption multidrive countershaft conical clutch according to claim 7, is characterized in that: the axial external conical sleeve of described cirque body is coated at a servo-actuated back shaft by a spiral prominence wheel set.

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