Novel two-gear AMT gear shifting executing mechanism

Abstract

The invention discloses a novel two-gear AMT (automated mechanical transmission) gear shifting executing mechanism, which relates to the technical field of gear shifting executing mechanisms and comprises a shell, a gear shifting motor driver, a lead screw, a lead screw nut and a sliding shifting block which are arranged on a two-gear AMT gear shifting executing mechanism body. According to the novel two-gear AMT gear shifting executing mechanism, when jamming occurs in the gear shifting process, jamming can be found in time, an alarm is given, meanwhile, stalling of a gear shifting motor driver can be avoided, and the using effect and the service life of the gear shifting motor driver are guaranteed; in the gear shifting process, lubricating oil can be used for automatically washing the surface of the lead screw, impurities attached to the surface of the lead screw can be cleaned, the lubricating effect can be achieved, therefore, the annular cover moves more smoothly, and then gear shifting operation is smoother and more stable; in the gear shifting process, lubricating oil in the gearbox is automatically filtered, impurities such as scraps are collected, use is more convenient and faster, and the use effect of the lubricating oil is guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of shift actuators, and in particular to a novel two-speed AMT shift actuator. Background Art

[0002] The two-speed AMT (automatic mechanical transmission) shift actuator is a key component in the AMT system. It is responsible for realizing the gear switching during the automatic shifting process. The DC motor is used as the shifting action power device. The motor output shaft is connected to the lead screw, thereby driving the rotational motion of the lead screw. There is a nut on the lead screw, which can convert the rotational motion of the lead screw into linear motion. The nut is connected to the sliding shift head, thereby realizing the shifting action of the shift fork.

[0003] However, when the existing two-speed AMT shift actuator is in use, some debris and other impurities are easily adhered to the lead screw. At the same time, it is easy to lack lubricating oil, which can easily cause the nut to move unsmoothly and unstably, affecting the reliability and stability of the shift. In addition, when the gear shift is stuck, the motor will be blocked, which not only makes it difficult to detect the abnormal gear shifting problem in time, but also affects the service life of the motor.

[0004] To this end, we propose a new two-speed AMT shift actuator. Summary of the invention

[0005] The object of the present invention is to provide a novel two-speed AMT shift actuator to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solutions: a novel two-speed AMT shift actuator, comprising a housing, a shift motor driver, a lead screw, a lead screw nut and a sliding dial head arranged on a body of the two-speed AMT shift actuator, wherein the sliding dial head is threadedly connected to the lead screw nut, and a dial head rod is arranged on the sliding dial head for shifting a shift fork, a telescopic mechanism is arranged between the sliding dial head and the lead screw nut, and a flushing mechanism for flushing and lubricating the lead screw is arranged on a side wall of the lead screw nut;

[0007] The flushing mechanism includes two symmetrically arranged annular covers fixedly connected to the side walls of the screw nut, the inner side wall of each annular cover is provided with a plurality of oil outlet holes arranged in an array, and the inner side wall of the shell is provided with an oil supply mechanism for supplying oil to the oil outlet holes.

[0008] Preferably, the telescopic mechanism includes two symmetrically arranged sleeves fixedly connected to the side walls of the sliding dial head, and a sliding disk is slidably connected in the sleeve, the end of the sliding disk is fixedly connected to a sleeve rod, and the other end of the sleeve rod is fixed to the side wall of the screw nut, a first reset mechanism is arranged between both sides of the sliding disk and the sleeve, and a detection mechanism is arranged between the sliding disk and both ends of the sleeve.

[0009] Preferably, each of the first resetting mechanisms comprises a fixing ring fixedly connected to the end of the sleeve, and the end of the fixing ring is fixedly connected to a first spring, and the other end of the first spring is fixedly connected to a movable ring.

[0010] Preferably, the detection mechanism comprises a mounting frame fixedly inserted in each fixing ring, the mounting frame is fixed to the end of the sleeve, and a distance sensor is fixedly inserted on the side wall of the mounting frame.

[0011] Preferably, the oil supply mechanism includes a fixed block fixedly connected to the inner wall of the shell, and the side wall of the fixed block is fixedly connected to a filter box, the side wall of the filter box is fixedly connected to an L-shaped tube, and the lower end of the L-shaped tube is provided with an oil pumping mechanism, the bottom of each annular cover is fixedly connected to a first connecting tube, and the lower end of the first connecting tube is fixedly connected to a second connecting tube, a first one-way valve is provided in the second connecting tube, and the other end of the second connecting tube is fixedly connected to a third connecting tube, the other end of the third connecting tube is fixedly connected to a fourth connecting tube, and a telescopic tube is fixedly connected between the fourth connecting tube and the filter box, a second one-way valve is provided in the fourth connecting tube, the side wall of the third connecting tube is fixedly connected to a working tube, and a piston is connected to the working tube through a moving mechanism, the side wall of the piston is provided with a sealing mechanism, and a filtering mechanism is provided in the filter box.

[0012] Preferably, the moving mechanism includes a moving rod fixedly connected to the end of the piston, and the other end of the moving rod is fixedly connected to a moving block, the moving block is connected to the side wall of the third connecting tube through a second reset mechanism, and the side wall of the moving block is fixedly connected to a connecting plate, the other end of the connecting plate is fixedly connected to the triangular block, and the inner side wall of the shell is provided with a plurality of triangular grooves arranged in an array.

[0013] Preferably, the second reset mechanism includes two symmetrically arranged T-shaped guide rods fixedly connected to the side wall of the third connecting tube, and the moving block is sleeved on the side wall of the T-shaped guide rod, the side wall fixed sleeve of each T-shaped guide rod is provided with a ring, and the side wall sleeve of each T-shaped guide rod is provided with a second spring.

[0014] Preferably, the filtering mechanism comprises a collecting box slidably connected in the filtering box, and two opposite side walls of the collecting box are provided with through holes, and a filter screen is fixedly inserted in the through hole close to the telescopic tube.

[0015] Preferably, the oil pumping mechanism comprises a movable tube inserted at the lower end of the L-shaped tube, a hollow gravity ball is fixedly connected to the lower end of the movable tube, and a plurality of circular holes arranged in an array are formed on the side wall of the gravity ball.

[0016] Preferably, the sealing mechanism comprises an annular groove formed on the side wall of the piston, and a sealing ring is sleeved in the annular groove.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] The present invention sets a telescopic mechanism, etc., and when shifting gears, the shift motor driver is started. The rotation of the shift motor driver drives the rotation of the lead screw, thereby moving the lead screw nut, and driving the sliding dial head and the dial head rod to move through the telescopic mechanism, thereby realizing the shifting operation. When a jam occurs during the shifting process, one of the moving rings will be pushed by the sliding disk, so that one of the first springs will be compressed, thereby preventing the shift motor driver from being blocked, ensuring its use effect and lifespan, and the movement of the sliding disk can be detected by the distance sensor, and an alarm can be sounded by an external alarm, thereby ensuring the reliability of the shifting.

[0019] The present invention is provided with a flushing mechanism, etc., when shifting, when the lead screw nut moves, it drives the triangular block to move synchronously, when the triangular block slides out of the triangular groove and slides on the inner wall of the shell, the piston is pushed to move in the direction close to the third connecting pipe through the connecting plate and the moving rod, and at the same time, the second spring is compressed, and when the triangular block is aligned with the triangular groove, the triangular block is moved into the triangular groove under the action of the second spring, and at the same time, the piston can move in the direction away from the third connecting pipe under the action of the second spring, and so on and so forth, so that the piston can reciprocate in the working pipe, and when the piston moves in the direction away from the third connecting pipe, negative pressure is generated in the third connecting pipe, and at the same time, the second one-way valve is opened and the first one-way valve is closed, at this time, the gearbox The lubricating oil at the bottom enters the filter box through the oil pumping mechanism and the L-shaped tube for filtration, and the filtered lubricating oil enters the third connecting tube through the telescopic tube and the fourth connecting tube. When the piston moves in the direction close to the third connecting tube, the lubricating oil in the third connecting tube can be squeezed. At the same time, the second one-way valve is closed and the first one-way valve is opened. At this time, the lubricating oil in the third connecting tube is squeezed and enters the annular cover through the second connecting tube and the first connecting tube, and impacts the surface of the screw rod through the oil outlet hole. This reciprocating process can automatically flush the surface of the screw rod during the gear shifting process, which can not only clean the impurities adhering to the surface, but also have a lubricating effect, thereby making the movement of the annular cover smoother, and then making the gear shifting operation smoother and more stable.

[0020] The present invention provides a filtering mechanism, etc., and after the two-speed AMT shift actuator body and the gearbox are installed and fixed, under the action of gravity, the moving tube slides downward along the L-shaped tube, and the gravity ball moves to the bottom of the gearbox. When shifting gears, the lubricating oil at the bottom of the gearbox can be absorbed through the multiple circular holes on the side wall of the gravity ball, and enters the collection box in the filter box through the L-shaped tube. Under the action of the filter, impurities such as debris in the lubricating oil can be filtered and retained in the collection box for collection. The filtered lubricating oil enters the third connecting tube through the telescopic tube and the fourth connecting tube, and so on and so forth. During the shifting process, the lubricating oil in the gearbox can be automatically filtered and impurities such as debris can be collected. The use is more convenient and quick, and the use effect of the lubricating oil is guaranteed. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 It is a schematic diagram of the position of the moving mechanism in the present invention;

[0023] Figure 3 It is a structural schematic diagram of the flushing mechanism in the present invention;

[0024] Figure 4 It is a partial cross-sectional structural schematic diagram of the casing and the filter box in the present invention;

[0025] Figure 5 for Figure 2 Enlarged view of point A in the middle;

[0026] Figure 6 for Figure 4 Enlarged view of point B in the middle;

[0027] Figure 7 for Figure 5 Enlarged view of point C in the middle;

[0028] Figure 8 for Figure 6 Enlarged view of point D in the middle;

[0029] Fig. 9 for Figure 6 Enlarged view of point E in the middle;

[0030] Fig.10 for Fig. 9 Enlarged view of point F in the middle.

[0031] In the figure: 1. Two-speed AMT shift actuator body; 101. Housing; 102. Shift motor driver; 103. Screw; 104. Sliding head; 105. Head rod; 106. Screw nut; 2. Telescopic mechanism; 201. Casing; 202. Sliding plate; 203. Sleeve rod; 3. Oil supply mechanism; 301. Fixed block; 302. Filter box; 303. L-shaped pipe; 304. First connecting pipe; 305. Second connecting pipe; 306. First non-return valve; 307. Third connecting pipe; 308. Fourth connecting pipe; 309. Second non-return valve; 310. Telescopic pipe; 311. Working pipe; 312. Piston; 4. Moving mechanism; 401. Moving rod; 402 , moving block; 403, connecting plate; 404, triangular block; 405, triangular groove; 5, second reset mechanism; 501, T-shaped guide rod; 502, circular ring; 503, second spring; 6, oil pumping mechanism; 601, moving tube; 602, gravity ball; 603, circular hole; 7, filtering mechanism; 701, collecting box; 702, through hole; 703, filter; 8, first reset mechanism; 801, fixed ring; 802, first spring; 803, moving ring; 9, detection mechanism; 901, mounting bracket; 902, distance sensor; 10, flushing mechanism; 1001, annular cover; 1002, oil outlet; 11, sealing mechanism; 1101, annular groove; 1102, sealing ring. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] See also Figure 1-Figure 10 A novel two-speed AMT shift actuator shown in the figure comprises a housing 101, a shift motor driver 102, a lead screw 103, a lead screw nut 106 and a sliding dial head 104 arranged on a two-speed AMT shift actuator body 1, the sliding dial head 104 is threadedly connected with the lead screw nut 106, and a dial head rod 105 is arranged on the sliding dial head 104 for shifting the shift fork to realize the shift operation, a telescopic mechanism 2 is arranged between the sliding dial head 104 and the lead screw nut 106, and a flushing mechanism 10 for flushing and lubricating the lead screw 103 is arranged on the side wall of the lead screw nut 106;

[0034] The flushing mechanism 10 includes two symmetrically arranged annular covers 1001 fixedly connected to the side walls of the screw nut 106, and the inner wall of each annular cover 1001 is provided with a plurality of oil outlet holes 1002 arranged in an array, and the inner wall of the shell 101 is provided with an oil supply mechanism 3 for supplying oil to the oil outlet holes 1002. When a jam occurs during the gear shifting process, it can be discovered in time and an alarm can be sounded. At the same time, the gear shifting motor driver 102 can be prevented from being blocked, thereby ensuring its use effect and life; during the gear shifting process, the surface of the screw rod 103 can be automatically flushed with lubricating oil, which can not only clean the impurities adhered to its surface, but also have a lubricating effect, thereby making the movement of the annular cover 1001 smoother, and then making the gear shifting operation smoother and more stable; during the gear shifting process, the lubricating oil in the gearbox is automatically filtered and impurities such as debris are collected, which is more convenient and quick to use and ensures the use effect of the lubricating oil.

[0035] The telescopic mechanism 2 includes two symmetrically arranged sleeves 201 fixedly connected to the side walls of the sliding dial head 104, and a sliding disk 202 is slidably connected in the sleeve 201, a sleeve rod 203 is fixedly connected to the end of the sliding disk 202, and the other end of the sleeve rod 203 is fixed to the side wall of the screw nut 106, a first reset mechanism 8 is arranged on both sides of the sliding disk 202 and between the sleeve 201, and a detection mechanism 9 is arranged between the sliding disk 202 and both ends of the sleeve 201. When jamming occurs during the gear shifting process, the sliding disk 202 and the sleeve rod 203 slide in the sleeve 201.

[0036] Each first reset mechanism 8 includes a fixed ring 801 fixedly connected to the end of the sleeve 201, and the end of the fixed ring 801 is fixedly connected to a first spring 802, and the other end of the first spring 802 is fixedly connected to a movable ring 803. When a jam occurs during the gear shifting process, one of the movable rings 803 will be pushed by the sliding disk 202, so that one of the first springs 802 is compressed, thereby avoiding the gear shifting motor driver 102 from being stuck and ensuring its use effect and life.

[0037] The detection mechanism 9 includes a mounting frame 901 fixedly inserted in each fixing ring 801, the mounting frame 901 is fixed to the end of the sleeve 201, and a distance sensor 902 is fixedly inserted on the side wall of the mounting frame 901. The movement of the sliding plate 202 is detected by the distance sensor 902, and an alarm is sounded through an external alarm, thereby ensuring the reliability of gear shifting.

[0038] The oil supply mechanism 3 includes a fixed block 301 fixedly connected to the inner wall of the housing 101, and the side wall of the fixed block 301 is fixedly connected to a filter box 302, the side wall of the filter box 302 is fixedly connected to an L-shaped pipe 303, and the lower end of the L-shaped pipe 303 is provided with an oil pumping mechanism 6, the bottom of each annular cover 1001 is fixedly connected to a first connecting pipe 304, and the lower end of the first connecting pipe 304 is fixedly connected to a second connecting pipe 305, and a first one-way valve 306 is provided in the second connecting pipe 305, and the conducting direction of the first one-way valve 306 is from the third connecting pipe 307 to the annular cover 1001, and the other end of the second connecting pipe 305 is fixedly connected to the inner wall of the housing 1001. A third connecting pipe 307 is fixedly connected, and the other end of the third connecting pipe 307 is fixedly connected to a fourth connecting pipe 308, and a telescopic pipe 310 is fixedly connected between the fourth connecting pipe 308 and the filter box 302, and a second one-way valve 309 is arranged in the fourth connecting pipe 308, and the conducting direction of the second one-way valve 309 is from the telescopic pipe 310 to the third connecting pipe 307, and a working pipe 311 is fixedly connected to the side wall of the third connecting pipe 307, and a piston 312 is connected to the working pipe 311 through a moving mechanism 4, and a sealing mechanism 11 is arranged on the side wall of the piston 312, and a filtering mechanism 7 is arranged in the filter box 302, when shifting. When the piston 312 moves back and forth in the working tube 311 through the moving mechanism 4 and the second reset mechanism 5, when the piston 312 moves in the direction away from the third connecting tube 307, negative pressure is generated in the third connecting tube 307. At the same time, the second one-way valve 309 is opened and the first one-way valve 306 is closed. At this time, the lubricating oil at the bottom of the gearbox enters the filter box 302 through the oil pumping mechanism 6 and the L-shaped tube 303 for filtration. The filtered lubricating oil enters the third connecting tube 307 through the telescopic tube 310 and the fourth connecting tube 308. When the piston 312 moves in the direction close to the third connecting tube 307, negative pressure can be generated in the third connecting tube 307. The lubricating oil in the three-way connecting pipe 307 is squeezed, and at the same time, the second one-way valve 309 is closed and the first one-way valve 306 is opened. At this time, the lubricating oil in the third connecting pipe 307 is squeezed and enters the annular cover 1001 through the second connecting pipe 305 and the first connecting pipe 304, and impacts the surface of the screw rod 103 through the oil outlet hole 1002. In this way, the surface of the screw rod 103 can be automatically flushed during the gear shifting process, which can not only clean the impurities adhering to the surface, but also have a lubricating effect, thereby making the movement of the annular cover 1001 smoother, and then making the gear shifting operation smoother and more stable.

[0039] The moving mechanism 4 includes a moving rod 401 fixedly connected to the end of the piston 312, and the other end of the moving rod 401 is fixedly connected to a moving block 402, the moving block 402 is connected to the side wall of the third connecting tube 307 through the second reset mechanism 5, and the side wall of the moving block 402 is fixedly connected to a connecting plate 403, the other end of the connecting plate 403 is fixedly connected to a triangular block 404, and the inner side wall of the housing 101 is provided with a plurality of triangular grooves 405 arranged in an array. When shifting, when the lead screw nut 106 moves, the triangular block 404 is driven to move synchronously, and when the triangular block 404 When sliding out from the triangular groove 405 and sliding on the inner wall of the shell 101, the piston 312 is pushed to move toward the third connecting tube 307 through the connecting plate 403 and the moving rod 401. At the same time, the second spring 503 is compressed. When the triangular block 404 is aligned with the triangular groove 405, the triangular block 404 is moved into the triangular groove 405 under the action of the second spring 503. At the same time, the piston 312 can move away from the third connecting tube 307 under the action of the second spring 503. This reciprocating process can make the piston 312 move back and forth in the working tube 311.

[0040] The second reset mechanism 5 includes two symmetrically arranged T-shaped guide rods 501 fixedly connected to the side wall of the third connecting tube 307, and the moving block 402 is sleeved on the side wall of the T-shaped guide rod 501. The side wall of each T-shaped guide rod 501 is fixedly sleeved with a ring 502, and the side wall of each T-shaped guide rod 501 is sleeved with a second spring 503, which guides and resets the movement of the moving block 402 and the piston 312.

[0041] The filtering mechanism 7 includes a collecting box 701 slidably connected to the filter box 302, and two opposite side walls of the collecting box 701 are provided with through holes 702. A filter screen 703 is fixedly inserted in the through hole 702 near the telescopic tube 310. When shifting gears, the lubricating oil at the bottom of the gearbox can be absorbed through the multiple circular holes 603 on the side wall of the gravity ball 602, and enter the collecting box 701 in the filter box 302 through the L-shaped tube 303. Under the action of the filter screen 703, impurities such as debris in the lubricating oil can be filtered and retained in the collecting box 701 for collection. The filtered lubricating oil enters the third connecting tube 307 through the telescopic tube 310 and the fourth connecting tube 308. This reciprocating process can automatically filter the lubricating oil in the gearbox and collect impurities such as debris during the shifting process. The use is more convenient and quick, and the use effect of the lubricating oil is guaranteed.

[0042] The oil pumping mechanism 6 includes a movable tube 601 inserted at the lower end of the L-shaped tube 303, and the lower end of the movable tube 601 is fixedly connected with a hollow gravity ball 602, and the side wall of the gravity ball 602 is provided with a plurality of circular holes 603 arranged in an array. After the two-speed AMT shift actuator body 1 and the gearbox are installed and fixed, under the action of gravity, the movable tube 601 slides downward along the L-shaped tube 303, and the gravity ball 602 moves to the bottom of the gearbox.

[0043] The sealing mechanism 11 includes an annular groove 1101 formed on the side wall of the piston 312 , and a sealing ring 1102 is sleeved in the annular groove 1101 to ensure the sealing between the piston 312 and the working tube 311 .

[0044] Working principle: When in use, when shifting gears, the shift motor driver 102 is started, and the rotation of the shift motor driver 102 drives the rotation of the lead screw 103, so that the lead screw nut 106 moves, and the sliding dial head 104 and the dial head rod 105 are driven to move through the telescopic mechanism 2, so as to realize the shifting operation. When a jam occurs during the shifting process, one of the moving rings 803 will be pushed by the sliding disk 202, so that one of the first springs 802 is compressed, so as to avoid the shift motor driver 102 from being blocked, thereby ensuring its use effect and life, and the movement of the sliding disk 202 can be detected by the distance sensor 902, and an alarm can be sounded through an external alarm, so as to ensure the reliability of the shifting;

[0045] At the same time, when shifting, when the lead screw nut 106 moves, the triangular block 404 is driven to move synchronously. When the triangular block 404 slides out of the triangular groove 405 and slides on the inner wall of the housing 101, the piston 312 is pushed to move in the direction close to the third connecting tube 307 through the connecting plate 403 and the moving rod 401. At the same time, the second spring 503 is compressed. When the triangular block 404 is aligned with the triangular groove 405, under the action of the second spring 503, the triangular block 404 moves into the triangular groove 405. At the same time, the piston 312 can move in the direction away from the third connecting tube 307 under the action of the second spring 503. In this way, the piston 312 can move back and forth in the working tube 311.

[0046] When the piston 312 moves in a direction away from the third connecting pipe 307, negative pressure is generated in the third connecting pipe 307. At the same time, the second one-way valve 309 opens and the first one-way valve 306 closes. At this time, the lubricating oil at the bottom of the gearbox enters the filter box 302 through the oil pumping mechanism 6 and the L-shaped pipe 303 for filtration. The filtered lubricating oil enters the third connecting pipe 307 through the telescopic pipe 310 and the fourth connecting pipe 308. When the piston 312 moves in a direction close to the third connecting pipe 307, the lubricating oil in the third connecting pipe 307 can be squeezed. , the second one-way valve 309 is closed, and the first one-way valve 306 is opened. At this time, the lubricating oil in the third connecting pipe 307 is squeezed and enters the annular cover 1001 through the second connecting pipe 305 and the first connecting pipe 304, and impacts the surface of the screw rod 103 through the oil outlet hole 1002. In this way, the surface of the screw rod 103 can be automatically flushed during the gear shifting process, which can not only clean the impurities adhering to the surface, but also have a lubricating effect, so that the movement of the annular cover 1001 is smoother, and the gear shifting operation is smoother and more stable;

[0047] Furthermore, after the two-speed AMT shift actuator body 1 is installed and fixed to the gearbox, under the action of gravity, the moving tube 601 slides downward along the L-shaped tube 303, and the gravity ball 602 moves to the bottom of the gearbox. When shifting gears, the lubricating oil at the bottom of the gearbox can be absorbed through the multiple circular holes 603 on the side wall of the gravity ball 602, and enters the collecting box 701 in the filter box 302 through the L-shaped tube 303. Under the action of the filter 703, impurities such as debris in the lubricating oil can be filtered and remain in the collecting box 701 for collection. The filtered lubricating oil enters the third connecting tube 307 through the telescopic tube 310 and the fourth connecting tube 308. This reciprocating process can automatically filter the lubricating oil in the gearbox and collect impurities such as debris during the shifting process, making it more convenient and quick to use and ensuring the use effect of the lubricating oil.

[0048] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0049] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A novel two-speed AMT shift actuator, comprising a housing (101) arranged on a two-speed AMT shift actuator body (1), a shift motor driver (102), a lead screw (103), a lead screw nut (106) and a sliding dial head (104), wherein the sliding dial head (104) is threadedly connected to the lead screw nut (106), and a dial head rod (105) is arranged on the sliding dial head (104), characterized in that: A telescopic mechanism (2) is provided between the sliding dial head (104) and the lead screw nut (106), and a flushing mechanism (10) for flushing and lubricating the lead screw (103) is provided on the side wall of the lead screw nut (106); The flushing mechanism (10) comprises two symmetrically arranged annular covers (1001) fixedly connected to the side wall of the lead screw nut (106), the inner side wall of each annular cover (1001) being provided with a plurality of oil outlet holes (1002) arranged in an array, and the inner side wall of the housing (101) being provided with an oil supply mechanism (3) for supplying oil to the oil outlet holes (1002).

2. A novel two-speed AMT shift actuator according to claim 1, characterized in that: The telescopic mechanism (2) comprises two symmetrically arranged sleeves (201) fixedly connected to the side walls of the sliding dial head (104), and a sliding disk (202) is slidably connected inside the sleeve (201), a sleeve rod (203) is fixedly connected to the end of the sliding disk (202), and the other end of the sleeve rod (203) is fixed to the side wall of the lead screw nut (106), a first reset mechanism (8) is arranged between both sides of the sliding disk (202) and the sleeve (201), and a detection mechanism (9) is arranged between the sliding disk (202) and both ends of the sleeve (201).

3. A novel two-speed AMT shift actuator according to claim 2, characterized in that: Each of the first reset mechanisms (8) comprises a fixed ring (801) fixedly connected to the end of the sleeve (201), and the end of the fixed ring (801) is fixedly connected to a first spring (802), and the other end of the first spring (802) is fixedly connected to a movable ring (803).

4. A novel two-speed AMT shift actuator according to claim 2, characterized in that: The detection mechanism (9) comprises a mounting frame (901) fixedly inserted in each fixing ring (801), the mounting frame (901) is fixed to the end of the sleeve (201), and a distance sensor (902) is fixedly inserted on the side wall of the mounting frame (901).

5. The novel two-speed AMT shift actuator according to claim 1 is characterized in that: The oil supply mechanism (3) comprises a fixed block (301) fixedly connected to the inner wall of the housing (101), and the side wall of the fixed block (301) is fixedly connected to a filter box (302), the side wall of the filter box (302) is fixedly connected to an L-shaped tube (303), and the lower end of the L-shaped tube (303) is provided with an oil pumping mechanism (6), the bottom of each annular cover (1001) is fixedly connected to a first connecting tube (304), and the lower end of the first connecting tube (304) is fixedly connected to a second connecting tube (305), the second connecting tube (305) is provided with a first one-way valve (306), and the other end of the second connecting tube (305) is fixedly connected to the first connecting tube (304). A third connecting pipe (307) is fixedly connected to one end of the third connecting pipe (307), a fourth connecting pipe (308) is fixedly connected to the other end of the third connecting pipe (307), a telescopic pipe (310) is fixedly connected between the fourth connecting pipe (308) and the filter box (302), a second one-way valve (309) is arranged in the fourth connecting pipe (308), a working pipe (311) is fixedly connected to the side wall of the third connecting pipe (307), a piston (312) is connected to the working pipe (311) via a moving mechanism (4), a sealing mechanism (11) is arranged on the side wall of the piston (312), and a filtering mechanism (7) is arranged in the filter box (302).

6. A novel two-speed AMT shift actuator according to claim 5, characterized in that: The moving mechanism (4) comprises a moving rod (401) fixedly connected to the end of the piston (312), and the other end of the moving rod (401) is fixedly connected to a moving block (402), the moving block (402) is connected to the side wall of the third connecting tube (307) through a second reset mechanism (5), and the side wall of the moving block (402) is fixedly connected to a connecting plate (403), the other end of the connecting plate (403) is fixedly connected to a triangular block (404), and the inner side wall of the shell (101) is provided with a plurality of triangular grooves (405) arranged in an array.

7. A novel two-speed AMT shift actuator according to claim 6, characterized in that: The second reset mechanism (5) comprises two symmetrically arranged T-shaped guide rods (501) fixedly connected to the side wall of the third connecting tube (307), and the moving block (402) is sleeved on the side wall of the T-shaped guide rod (501), and the side wall of each T-shaped guide rod (501) is fixedly sleeved with a ring (502), and the side wall of each T-shaped guide rod (501) is sleeved with a second spring (503).

8. The novel two-speed AMT shift actuator according to claim 5 is characterized in that: The filtering mechanism (7) comprises a collecting box (701) slidably connected in the filtering box (302), and two opposite side walls of the collecting box (701) are provided with through holes (702), and a filter screen (703) is fixedly inserted in the through hole (702) on the side close to the telescopic tube (310).

9. The novel two-speed AMT shift actuator according to claim 5 is characterized in that: The oil pumping mechanism (6) comprises a movable tube (601) inserted at the lower end of the L-shaped tube (303), the lower end of the movable tube (601) is fixedly connected to a hollow gravity ball (602), and the side wall of the gravity ball (602) is provided with a plurality of circular holes (603) arranged in an array.

10. The novel two-speed AMT shift actuator according to claim 5, characterized in that: The sealing mechanism (11) comprises an annular groove (1101) formed on the side wall of the piston (312), and a sealing ring (1102) is sleeved in the annular groove (1101).

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