New energy automobile speed reducer

Abstract

The utility model discloses a new energy automobile speed reducer which comprises a speed reducer lower shell, a speed reducer upper shell installed at the top end of the speed reducer lower shell, a lubricating cover installed at the center of the top end of the speed reducer upper shell, a cover handle arranged at the center of the top end of the lubricating cover, and threaded pins installed at the corners of the top end of the lubricating cover. An input shaft is rotationally installed on one side in the speed reducer lower shell, one end of the input shaft extends out of the speed reducer lower shell and is provided with a driven wheel, the other end of the input shaft is provided with a first driving gear, and a first driven gear is rotationally installed on the inner wall, on one side of the first driving gear, of the speed reducer lower shell. Transmission parts on the inner side of the speed reducer lower shell can be lubricated through the opening in the top of the speed reducer upper shell, the speed reducer upper shell and the speed reducer lower shell can be detached, the speed reducer can be overhauled, lubricated and maintained easily, and the stability of the speed reducer during operation is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of new energy vehicle transmission, in particular to a new energy vehicle reducer. Background Art

[0002] With the world's increasing attention to environmental protection and energy conservation, new energy vehicles are the future development direction of the automotive industry, and the efficiency and reliability of their core technology transmission systems are particularly important. Therefore, developing a reducer designed specifically for new energy vehicles is of great significance to improving the overall performance of the vehicle.

[0003] A new energy vehicle reducer with reference announcement number CN221170632U includes a reducer end housing assembly, a motor end housing assembly, an input shaft assembly, an intermediate shaft assembly and a differential assembly. The intermediate shaft assembly includes a drive rod, a friction block, an intermediate shaft and an intermediate shaft gear. The drive rod and the friction block are in contact through a certain angle of the inclined surface. The angle can make the friction block and the drive rod self-locking. The movement of the friction block can be achieved by moving the drive rod, and finally the intermediate shaft gear and the intermediate shaft can be connected or rotated separately. Under the premise of meeting the requirements of automobile power, during the normal driving of the whole vehicle, the unnecessary energy loss in the power system is reduced, and the cruising range of the whole vehicle can be improved. It not only meets the consumer's requirements for automobile power, but also improves the cruising range of the whole vehicle. According to the above, although the reducer can be well applied, the corresponding maintenance and lubrication parts are usually not arranged on the reducer housing. When the gears inside the reducer housing need to be lubricated, the reducer housing needs to be disassembled as a whole, which makes the reducer maintenance and lubrication have certain inconveniences, which often troubles users. Utility Model Content

[0004] The purpose of the utility model is to provide a new energy vehicle reducer to solve the problem that although the reducer mentioned in the above background technology can be well applied, the corresponding maintenance and lubrication parts are usually not arranged on the reducer housing. When the gears inside the reducer housing need to be lubricated, the reducer housing needs to be disassembled as a whole, which causes certain inconveniences in the maintenance and lubrication of the reducer.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a new energy vehicle reducer, comprising a reducer lower housing, a reducer upper housing is installed on the top of the reducer lower housing, a lubrication cover is installed at the center position of the top of the reducer upper housing, a cover handle is provided at the center position of the top of the lubrication cover, threaded pins are installed at the corner positions of the top of the lubrication cover, the bottom end of the threaded pin passes through the lubrication cover and is threadedly connected to the top of the reducer upper housing, an input shaft is rotatably installed on one side of the interior of the reducer lower housing, one end of the input shaft extends to the outside of the reducer lower housing and is provided with a driven wheel, and the other end of the input shaft is provided with a first driving gear , one end of the first driving gear away from the input shaft is rotatably connected to the inner wall of the lower housing of the reducer, a first driven gear is rotatably installed on the inner wall of the lower housing of the reducer on one side of the first driving gear, the first driven gear and the first driving gear are meshed with each other, one end of the first driven gear is provided with a second driving gear through a rotating shaft, one end of the second driving gear away from the first driven gear is rotatably connected to the inner wall of the lower housing of the reducer, a second driven gear is rotatably connected on the inner wall of the lower housing of the reducer on one side of the second driving gear, one end of the second driven gear is provided with an output shaft, and one end of the output shaft away from the second driven gear extends to the outside of the lower housing of the reducer.

[0006] Preferably, a plurality of positioning holes are provided at the edge positions of the bottom of the lower shell of the reducer, and the bottom ends of the positioning holes all extend to the outside of the lower shell of the reducer. The reducer is positioned and installed by means of bolts penetrating the positioning holes and screwing them into the threaded grooves reserved on the new energy vehicle mounting platform.

[0007] Preferably, a plurality of pin holes are provided at the edge position of the top of the reducer lower shell and the edge position of the bottom of the reducer upper shell, and locking nuts are fixed to the top of the reducer lower shell at the pin hole positions, so that the lower end of the locking bolt can be tightened and installed through the setting of the locking nut.

[0008] Preferably, a rotating driving member is provided on one side of the driven wheel, and a driving wheel is installed on one end of the rotating driving member, so that the driving wheel can be driven to rotate by the setting of the rotating driving member.

[0009] Preferably, a transmission belt is wound around the outer wall of the driven wheel, and the inner wall of the transmission belt away from one end of the driven wheel touches the outer wall of the driving wheel. The transmission belt is arranged so that when the driving wheel rotates, the driven wheel is driven to rotate via the transmission belt.

[0010] Preferably, a locking bolt is installed at the top of the reducer upper shell at the pin hole position, and the bottom end of the locking bolt passes through the pin hole and is threadedly connected to the locking nut. The bottom end of the locking bolt passes through the pin hole and is screwed into the interior of the locking nut so as to lock the reducer upper shell onto the top of the reducer lower shell.

[0011] Compared with the prior art, the utility model has the following beneficial effects: the new energy vehicle reducer can not only lubricate the transmission components inside the reducer lower housing through the top opening of the reducer upper housing, but also disassemble the reducer upper housing and the reducer lower housing, so as to facilitate the inspection, lubrication and maintenance of the reducer, and ensure the stability of the reducer during operation;

[0012] (1) By using a tool to screw the threaded pin, the lower end of the threaded pin is screwed out to the outside of the reducer upper housing, and then the lubrication cover is pulled upward by holding the cover handle to remove the lubrication cover from the top of the reducer upper housing. At this time, the top of the reducer upper housing is open, and the transmission parts inside the reducer lower housing can be lubricated through the opening, thereby eliminating the need to disassemble the reducer lower housing and the reducer upper housing as a whole, thereby improving the convenience of reducer lubrication maintenance;

[0013] (2) The driving wheel is driven to rotate by a rotating driving member. Since the diameter of the driving wheel is smaller than that of the driven wheel, the driving wheel drives the driven wheel to rotate slowly through the transmission belt, so that the driven wheel drives the first driving gear and other related transmission components to operate through the input shaft. Compared with the traditional direct drive method, the belt transmission mechanism composed of the transmission belt and other related components makes the transmission components of the reducer operate more smoothly, thereby ensuring the stability of the reducer during operation;

[0014] (3) By turning the locking bolt and screwing the lower end of the locking bolt out to the outside of the locking nut, the reducer upper housing can be pulled upward to be detached from the top of the reducer lower housing, thereby facilitating the inspection and maintenance of the components inside the reducer lower housing and the reducer upper housing, thereby further improving the convenience of reducer maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the top view structure of the utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the lower housing of the reducer of the utility model from a top view;

[0018] Figure 4 It is a schematic diagram of the structure of the lower housing of the reducer of the utility model when viewed from above.

[0019] In the figure: 1, reducer lower housing; 101, positioning hole; 2, reducer upper housing; 3, locking bolt; 4, locking nut; 5, rotating drive member; 6, driving wheel; 7, transmission belt; 8, driven wheel; 9, output shaft; 10, lubrication cover; 11, cover handle; 12, threaded pin; 13, input shaft; 14, first driving gear; 15, first driven gear; 16, second driving gear; 17, second driven gear; 18, pin hole. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-4 The utility model provides an embodiment: a new energy vehicle reducer, comprising a reducer lower housing 1, a plurality of positioning holes 101 are arranged at the edge of the bottom of the reducer lower housing 1, and the bottom ends of the positioning holes 101 all extend to the outside of the reducer lower housing 1;

[0022] When in use, the reducer is positioned and installed by passing the bolt through the positioning hole 101 and screwing it into the threaded groove reserved on the new energy vehicle installation platform;

[0023] A plurality of pin holes 18 are provided at the edge of the top of the reducer lower housing 1 and the edge of the bottom of the reducer upper housing 2, and a locking nut 4 is fixed at the top of the reducer lower housing 1 at the position of the pin holes 18;

[0024] When in use, the locking nut 4 is arranged so as to tighten the lower end of the locking bolt 3;

[0025] A locking bolt 3 is installed at the top of the reducer upper housing 2 at the position of the pin hole 18, and the bottom end of the locking bolt 3 passes through the pin hole 18 and is threadedly connected with the locking nut 4;

[0026] When in use, the bottom end of the locking bolt 3 passes through the pin hole 18 and is screwed into the inside of the locking nut 4, so as to lock the reducer upper housing 2 to the top of the reducer lower housing 1;

[0027] The reducer upper housing 2 is installed at the top of the reducer lower housing 1, a lubrication cover 10 is installed at the center of the top of the reducer upper housing 2, a cover handle 11 is provided at the center of the top of the lubrication cover 10, threaded pins 12 are installed at the corners of the top of the lubrication cover 10, the bottom end of the threaded pin 12 penetrates the lubrication cover 10 and is threadedly connected to the top of the reducer upper housing 2, an input shaft 13 is rotatably installed on one side of the interior of the reducer lower housing 1, one end of the input shaft 13 extends to the outside of the reducer lower housing 1 and is provided with a driven wheel 8, a rotating driving member 5 is provided on one side of the driven wheel 8, and a driving wheel 6 is installed at one end of the rotating driving member 5;

[0028] When in use, the driving member 5 is rotated to drive the driving wheel 6 to rotate;

[0029] A transmission belt 7 is wound around the outer wall of the driven wheel 8, and the inner wall of the transmission belt 7 away from the end of the driven wheel 8 touches the outer wall of the driving wheel 6;

[0030] When in use, the transmission belt 7 is arranged so that when the driving wheel 6 rotates, the driven wheel 8 is driven to rotate through the transmission belt 7;

[0031] A first driving gear 14 is provided at the other end of the input shaft 13, and one end of the first driving gear 14 away from the input shaft 13 is rotatably connected to the inner wall of the lower housing 1 of the reducer, and a first driven gear 15 is rotatably installed on the inner wall of the lower housing 1 of the reducer on one side of the first driving gear 14. The first driven gear 15 and the first driving gear 14 are meshed with each other, and one end of the first driven gear 15 is provided with a second driving gear 16 through a rotating shaft, and one end of the second driving gear 16 away from the first driven gear 15 is rotatably connected to the inner wall of the lower housing 1 of the reducer, and a second driven gear 17 is rotatably connected to the inner wall of the lower housing 1 of the reducer on one side of the second driving gear 16, and one end of the second driven gear 17 is provided with an output shaft 9, and one end of the output shaft 9 away from the second driven gear 17 extends to the outside of the lower housing 1 of the reducer.

[0032] When the embodiment of the present application is in use, first, through the setting of the positioning hole 101, the reducer can be positioned and placed by only using a bolt member to penetrate the positioning hole 101 and screw it into the threaded groove body reserved on the new energy vehicle installation platform, and then the driving wheel 6 is driven to rotate by the rotating driving member 5, so that the driving wheel 6 drives the driven wheel 8 to rotate slowly through the transmission belt 7, so that the driven wheel 8 drives the first driving gear 14 and other related transmission components to operate through the input shaft 13. The belt transmission mechanism composed of the transmission belt 7 and other related components is used to make the reducer run more smoothly compared to the traditional direct drive method. Then, the threaded pin 12 is screwed with the help of a tool to screw the lower end of the threaded pin 12 out to the outside of the reducer upper shell 2, and then the cover handle 11 is held to lift the lubrication cover 10 upward to remove the lubrication cover 10 from the top of the reducer upper shell 2. At this time, the top of the reducer upper shell 2 is open, and the transmission part on the inner side of the reducer lower shell 1 can be accessed through this opening. The parts are lubricated, and then the locking bolt 3 is screwed out to the outside of the locking nut 4 by screwing the locking bolt 3, and the upper housing 2 of the reducer can be pulled upward to be disassembled from the top of the lower housing 1 of the reducer, so as to facilitate the inspection and maintenance of the inner parts of the lower housing 1 and the upper housing 2 of the reducer. Finally, the first driving gear 14 is meshed with the first driven gear 15, and the second driving gear 16 is meshed with the second driven gear 17. The diameter of the first driving gear 14 is smaller than the diameter of the first driven gear 15, and the diameter of the second driving gear 16 is smaller than the diameter of the second driven gear 17. When the input shaft 13 rotates, the first driving gear 14 is driven to rotate, so that the first driving gear 14 can drive the second driving gear 16 to rotate slowly through the first driven gear 15, and the second driving gear 16 can drive the output shaft 9 to rotate further slowly through the second driven gear 17, so as to achieve the purpose of multi-stage reduction, thereby completing the use of the reducer.

Claims

1. A new energy vehicle reducer, characterized in that: The invention comprises a reducer lower housing (1), wherein a reducer upper housing (2) is installed at the top of the reducer lower housing (1), a lubrication cover (10) is installed at the center of the top of the reducer upper housing (2), a cover handle (11) is provided at the center of the top of the lubrication cover (10), threaded pins (12) are installed at the corners of the top of the lubrication cover (10), the bottom end of the threaded pin (12) penetrates the lubrication cover (10) and is threadedly connected to the top of the reducer upper housing (2), an input shaft (13) is rotatably installed on one side of the interior of the reducer lower housing (1), one end of the input shaft (13) extends to the outside of the reducer lower housing (1) and is provided with a driven wheel (8), and the other end of the input shaft (13) is provided with a first driving gear (14), and the first driving gear (14) is away from the input shaft (13). ) is rotatably connected to the inner wall of the reducer lower housing (1); a first driven gear (15) is rotatably mounted on the inner wall of the reducer lower housing (1) on the side of the first driving gear (14); the first driven gear (15) and the first driving gear (14) are meshed with each other; a second driving gear (16) is provided at one end of the first driven gear (15) via a rotating shaft; an end of the second driving gear (16) away from the first driven gear (15) is rotatably connected to the inner wall of the reducer lower housing (1); a second driven gear (17) is rotatably connected to the inner wall of the reducer lower housing (1) on the side of the second driving gear (16); an output shaft (9) is provided at one end of the second driven gear (17); an end of the output shaft (9) away from the second driven gear (17) extends to the outside of the reducer lower housing (1).

2. A new energy vehicle reducer according to claim 1, characterized in that: A plurality of positioning holes (101) are provided at the edge of the bottom of the reducer lower housing (1), and the bottom ends of the positioning holes (101) all extend to the outside of the reducer lower housing (1).

3. A new energy vehicle reducer according to claim 1, characterized in that: A plurality of pin holes (18) are provided at the edge position of the top end of the reducer lower housing (1) and at the edge position of the bottom end of the reducer upper housing (2), and locking nuts (4) are fixed to the top of the reducer lower housing (1) at the positions of the pin holes (18).

4. A new energy vehicle reducer according to claim 1, characterized in that: A rotating drive member (5) is provided on one side of the driven wheel (8), and a driving wheel (6) is installed on one end of the rotating drive member (5).

5. A new energy vehicle reducer according to claim 4, characterized in that: A transmission belt (7) is wound around the outer wall of the driven wheel (8), and the inner wall of the transmission belt (7) away from one end of the driven wheel (8) contacts the outer wall of the driving wheel (6).

6. A new energy vehicle reducer according to claim 3, characterized in that: A locking bolt (3) is installed at the top of the reducer upper housing (2) at the position of the pin hole (18), and the bottom end of the locking bolt (3) passes through the pin hole (18) and is threadedly connected to the locking nut (4).

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