CN218228637U

CN218228637U - Driving wheel with high protection grade

Info

Publication number: CN218228637U
Application number: CN202220207337.XU
Authority: CN
Inventors: 董军; 曹运明; 谷增祥; 白珍珍; 黄洁茵
Original assignee: Kinetek Desheng Motor Foshan Shunde Co ltd
Current assignee: Kinetek Desheng Motor Foshan Shunde Co ltd
Priority date: 2022-01-25
Filing date: 2022-01-25
Publication date: 2023-01-06
Anticipated expiration: 2032-01-25

Abstract

The utility model discloses a driving wheel with high protection level, which comprises a bracket, a motor component and a wheel body, wherein the bracket is provided with a supporting part, and the wheel body is rotatably arranged outside the supporting part; the supporting part is provided with a through cavity, the motor assembly comprises a stator fixed on the inner side wall of the cavity, a rotor is arranged in the cavity, one end of a rotating shaft on the rotor is rotatably connected with the support and penetrates out of one side of the support, a half shell is fixed at the end part of the supporting part, the other end of the rotating shaft is rotatably connected with the half shell, the end of the rotating shaft, which penetrates out of the support, is in transmission with the gear group between the wheel body, a gear cover is arranged on one side of the support, which is opposite to the supporting part, a plane matched with the gear cover is arranged on one side of the support, which is opposite to the supporting part, the gear cover is fixed on the plane, and the gear group is covered in the gear cover; the end face of the wheel body is provided with the protective cover, the center of the protective cover is provided with the wire outlet hole, the center of the half shell is provided with the wire outlet ring, and the wire outlet ring is rotatably connected with the wire outlet hole and is in sealing fit with the wire outlet hole.

Description

Driving wheel with high protection level

Technical Field

The utility model belongs to the technical field of the drive wheel and specifically relates to a drive wheel of high protection level is related to.

Background

The shell material of the motor used in the mobile driving electric driving wheel for material handling at present is thick seamless steel pipe or cast iron, and the starting point is that the motor shell bears the gravity of the driving wheel, for example, the shell comprises a speed reducing box body, a transmission assembly, a driving motor and a wheel which is rotationally installed outside the driving motor, wherein the speed reducing box body comprises a lateral installation part and a transverse installation part connected to the top of the lateral installation part, an installation space is formed between the lateral installation part and the transverse installation part, the speed reducing box body also comprises an inner gear ring which is matched with the transmission assembly for transmission, the end surfaces of two sides of the inner gear ring are respectively abutted against the transmission assembly and the wheel, and the outer circumferential surface of the inner gear ring is abutted against the inner wall of the wheel; the wheel passes through the bearing rotation and installs on driving motor, and the block is provided with the circlip subassembly between this wheel and the driving motor.

The motor casing is as the atress main part of drive wheel among the above-mentioned structure, and the requirement that bears external force to motor casing is higher, just so leads to increasing by a wide margin of motor cost.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the application provides a driving wheel with high protection level, which can reduce the cost of a motor and has more reasonable structure.

In order to solve the technical problems, the following technical scheme is adopted in the application:

a high-protection-level driving wheel comprises a support, a motor assembly and a wheel body, wherein the support is provided with a supporting part, and the wheel body is rotatably arranged outside the supporting part; the supporting part is provided with a through cavity, the motor assembly comprises a stator fixed on the inner side wall of the cavity, a rotor is arranged in the cavity, one end of a rotating shaft on the rotor is rotatably connected with the support and penetrates out of one side of the support, a half shell is fixed at the end part of the supporting part, the other end of the rotating shaft is rotatably connected with the half shell, the half shell and the cavity are jointly assembled to form a shell of the motor assembly, the end of the rotating shaft penetrating out of the support is in transmission with a gear set between wheel bodies, a gear cover is arranged on one side of the support, which is back to the supporting part, a plane matched with the gear cover is arranged on one side of the support, which is back to the supporting part, the gear cover is fixed on the plane, and the gear set is covered by the gear cover; the terminal surface of wheel body is equipped with the protective cover, and the protective cover center is equipped with the wire hole, and the center of half shell is equipped with the wire ring, and the wire ring rotates with the wire hole to be connected and sealed cooperation.

By adopting the technical scheme, the supporting part arranged on the bracket is used for mounting the wheel body, so that the acting force acts on the supporting part and does not act on the motor directly; the support can be directly formed by casting, and when the support is cast, the support can be synchronously cast without separately producing the motor, so that the cost can be effectively reduced; in order to facilitate the wheel body to be exactly assembled on the supporting part, the outer part of the supporting part can be columnar; the cavity arranged on the supporting part is used for installing the motor assembly, the cavity is used as a part of the motor shell, high integration between the motor shell and the motor shell is realized, and the length of the motor is usually longer than the axial size of the wheel body according to the power setting of the driving wheel, so that the axial sizes of the supporting part and the wheel body are matched, the end parts of the stator and the rotor, which extend out of the cavity of the supporting part, are covered by the half shell, and the cost of the support can be further reduced; meanwhile, one side directly matched with the gear cover adopts a planar design, and when the support is produced, a blank piece of the support is milled flat, so that the processing is simple, the cost is further reduced, and the structure is more reasonable; the protective cover that wheel body terminal surface set up for protect the motor, reduce the influence of dust or water to the motor, the setting up of ring that goes out the line can make the electric wire avoid with protective cover direct friction, play the guard action to the electric wire.

The application is further configured to: the gear cover is provided with the shaft hole corresponding to the position of the rotating shaft, the rotating shaft penetrates through the shaft hole and extends out of the gear cover, the end portion of the rotating shaft is provided with a brake, and the brake and the gear cover are fixedly arranged.

Through adopting above-mentioned technical scheme, the stopper is fixed in the gear lid, and it is comparatively convenient that its installation is dismantled, is also reducing the comprehensive length that the drive wheel has motor one side simultaneously, and the drive wheel can adapt to more installation situations, arranges in the support both sides through with protective cover and stopper, and the distance that makes the outside extension in support both sides is less relatively.

The application is further configured to: a first oil seal is arranged between the rotating shaft and the bracket, and a sealing gasket is arranged between the gear cover and the bracket; the gear cover is provided with a shaft hole corresponding to the position of the rotating shaft, and a third oil seal is arranged between the shaft hole and the rotating shaft.

By adopting the technical scheme, the first oil seal, the third oil seal and the sealing gasket can further increase the sealing performance, reduce the oil leakage situation, ensure the long-time use of the driving wheel and avoid the oil leakage phenomenon.

The application is further configured to: the gear train is equipped with rotatable transmission shaft including installing in the driving gear of motor on the support, and the transmission shaft runs through the support, and the one end of transmission shaft is provided with first drive gear, and the other end of transmission shaft is provided with second drive gear, and first drive gear is located the both sides of support with second drive gear respectively. The first transmission gear is meshed with the driving gear; and a gear ring is fixed on one side of the wheel body close to the bracket, and the gear ring is meshed with the second transmission gear.

The application is further configured to: the gear train is equipped with rotatable transmission shaft including installing in the driving gear of motor on the support, and the transmission shaft runs through the support, and the one end of transmission shaft is provided with first drive gear, and the other end of transmission shaft is provided with second drive gear, and first drive gear is located the both sides of support respectively with second drive gear. The first transmission gear is meshed with the driving gear; and a gear ring is fixed on one side of the wheel body close to the bracket, and the gear ring is meshed with the second transmission gear.

Through adopting above-mentioned technical scheme, through the mutual transmission between each gear, have the effect of speed reduction on the one hand, on the other hand can be effectual with the moment of torsion transmission of motor to wheel body, because the driving gear lies in the same one side of support with first drive gear, according to the difference of using the scene, through changing driving gear and first drive gear, change the gear ratio and further realize the transform of drive wheel moment of torsion.

The application is further configured to: and a second oil seal is arranged between the gear ring and the support, and a bearing with a dust cover is arranged between the wheel body and the supporting part.

By adopting the technical scheme, the bearing with the dustproof cover and the second oil seal are arranged, so that the relative sealing of the space where the gear ring and the second transmission gear are located can be kept, the lubrication between the gear ring and the second transmission gear is ensured, grease can be added between the gear ring and the second gear, and the lubricating effect of the gear ring and the second transmission gear is improved.

The application is further configured to: the side face of the bracket mounting gear is provided with a circle of annular bulges matched with the shape of the gear cover, the annular bulges are provided with a plurality of screw holes, the gear cover is fixed on the annular bulges through screws, a sealing gasket is arranged between the gear cover and the annular bulges, and the height of the annular bulges can be 3-5mm.

Through adopting above-mentioned technical scheme, through setting up annular arch in order to cooperate the gear cover at the support, the support of being convenient for like this needs the scope of milling when machining little, and the precision is controlled more easily also, is convenient for keep the plane degree on annular protruding surface to make the sealed effect between gear cover and the support better.

The application is further configured to: the gear cover is formed by plastic injection molding or metal punch forming.

Through adopting above-mentioned technical scheme, the gear cover adopts injection moulding or stamping forming, and its processing degree of difficulty is little, further reduces the overall cost of drive wheel.

This application compares with prior art's beneficial effect has, because the wheel body is rotatable installs in the support and does not act on the motor, the cost of the motor that makes reduces greatly, need not additionally to design motor housing that structural strength is high, can directly purchase the motor installation that the specification accords with can, maintenance, replacement cost are lower.

Drawings

Fig. 1 is a configuration diagram of an external form of a high protection grade drive wheel.

Fig. 2 is a sectional view of fig. 1.

Description of reference numerals:

1. a support; 11. a support portion; 12. an installation part; 13. a cavity; 14. a first oil seal; 2. a motor assembly; 21. a rotating shaft; 22. a driving gear; 23. a stator; 24. a rotor; 25. half shells; 3. a drive shaft; 31. a first drive gear; 32. a second transmission gear; 4. a wheel body; 41. a bearing; 42. a ring gear; 43. a second oil seal; 5. a gear cover; 51. a gasket; 52. an oil filler hole; 6. a brake; 61. a third oil seal; 7. a protective cover; 71. an outlet ring; 72. a fourth oil seal; 73. a seal ring; 74. and (7) a wire outlet hole.

Detailed Description

A high-protection-level driving wheel comprises a support 1, wherein the support 1 is provided with a mounting part 12 and a columnar supporting part 11, a rotatable wheel body 4 is mounted outside the supporting seat, and a bearing 41 is arranged between the wheel body 4 and the mounting part 12; the supporting part 11 is provided with the cavity 13 that link up, the cavity 13 in install motor element 2, motor element 2 is including being fixed in the stator 23 of cavity 13 inside wall, is provided with rotor 24 in the cavity 13, the one end of the last pivot 21 of rotor 24 rotates with support 1 to be connected and pivot 21 wears out one side of support 1. The end fixing of supporting part 11 has half shell 25, the other end and the half shell 25 of pivot 21 rotate to be connected, be provided with first oil blanket 14 between shell pivot 21 and the support 1 that form the motor is assembled jointly to half shell 25 and cavity 13, the end fixing that support 1 was worn out to pivot 21 has driving gear 22, be equipped with rotatable transmission shaft 3 on the support 1, transmission shaft 3 runs through support 1, the one end of transmission shaft 3 is provided with first transmission gear 31, the other end of transmission shaft 3 is provided with second drive gear 32, first transmission gear 31 is located the both sides of support 1 respectively with second drive gear 32 promptly. The first transmission gear 31 is meshed with the driving gear 22; a gear ring 42 is fixed on one side of the wheel body 4 close to the bracket 1, and the gear ring 42 is meshed with the second transmission gear 32. Wherein a second oil seal 43 is arranged between the gear ring 42 and the bracket 1, and a bearing 41 arranged between the wheel body 4 and the supporting part 11 is provided with a dustproof cover, so that the gear ring 42 and the second transmission gear 32 have better dustproof effect.

One side that support 1 kept away from the motor can be a plane, and one side that support 1 kept away from the motor just is fixed with gear cover 5, and gear cover 5 can adopt plastics injection moulding, also can adopt metal stamping forming, selects according to the applied scene and the service behavior of drive wheel. A closed space is formed by the gear cover 5 and the side surface of the driving bracket 1, and the gear cover 5 is provided with an oil injection hole 52 for injecting lubricating oil into the closed space so as to fully lubricate the gear; it should be noted here that, a circle of annular protrusion having the same shape as the gear cover 5 may be provided on the side surface of the bracket 1 where the gear is mounted, a plurality of screw holes are provided on the annular protrusion, the gear cover 5 is fixed to the annular protrusion by screws, and a sealing gasket 51 is provided between the gear cover 5 and the annular protrusion to increase the sealing performance, preferably, the height of the annular protrusion may be-mm, so that when the sealing surface of the bracket 1 is machined, only the flatness of the annular protrusion is ensured, the machining time is reduced, and the precision control is facilitated.

The position that gear cover 5 corresponds pivot 21 is provided with the shaft hole, and pivot 21 runs through the shaft hole and extends gear cover 5, is equipped with third oil blanket 61 between shaft hole and the pivot 21, the tip of pivot 21 is provided with stopper 6, and stopper 6 sets up with gear cover 5 is fixed.

A protective cover 7 is fixed on one side of the wheel body 4, which is far away from the support 1, a sealing ring 73 is used for sealing between the protective cover 7 and the end surface of the wheel body 4, the protective cover 7 is provided with a wire outlet hole 74, a wire outlet ring 71 is arranged at the center of the half shell 25, the wire outlet hole 74 is rotatably connected with the protective cover 7, a fourth oil seal 72 is arranged between the wire outlet hole 74 and the wire outlet ring 71, and the outer ring of the wire outlet ring 71 is matched with the inner diameter of the fourth oil seal 72; the wire outlet ring 71 is used for allowing an electric wire connected with the motor assembly 2 to pass through, and when the wheel body 4 and the protective cover 7 rotate, mutual friction between the electric wire and the protective cover 7 can be avoided due to the arrangement of the wire outlet ring 71, so that the electric wire is protected.

The working principle of the application, support 1 is provided with cylindrical supporting portion 11 and is used for installing wheel body 4, and the motor is installed in the cavity 13 of supporting portion 11 for effort on the wheel body 4 is exerted in supporting portion 11, and does not act on the motor, and to motor housing's structural strength, the requirement greatly reduced of material rigidity like this makes the manufacturing cost of motor reduce greatly. The brake 6 fixedly attached to the gear cover 5 can brake the drive wheels. When the driving wheel is used, the driving wheel is installed on a vehicle body through the support 1, the driving gear 22 on the motor rotating shaft 21 drives the first transmission gear 31 to rotate by controlling the motor to rotate, the second transmission gear 32 is further driven to transmit through the transmission of the transmission shaft 3, and the second transmission gear 32 is meshed with the gear ring 42 fixed on the wheel body 4, so that the wheel body 4 is driven to rotate on the supporting part 11. Because the protective cover 7 that the wheel body 4 tip set up can promote the protection level of drive wheel, can make the drive wheel can adapt to more abominable service behavior.

Claims

1. The utility model provides a high protection level's drive wheel, includes support (1), motor element (2), wheel body (4), its characterized in that: the support (1) is provided with a supporting part (11), and the wheel body (4) is rotatably arranged outside the supporting part (11); the supporting part (11) is provided with a through cavity (13), the motor assembly (2) comprises a stator (23) fixed on the inner side wall of the cavity (13), a rotor (24) is arranged in the cavity (13), one end of a rotating shaft (21) on the rotor (24) is rotatably connected with the support (1) and penetrates out of one side of the support (1), a half shell (25) is fixed at the end part of the supporting part (11), the other end of the rotating shaft (21) is rotatably connected with the half shell (25), the half shell (25) and the cavity (13) are jointly assembled to form a shell of the motor assembly (2), one end of the rotating shaft (21) penetrating out of the support (1) is in transmission with a gear set and a wheel body (4), one side of the support (1) back to the supporting part (11) is provided with the gear cover (5), one side of the support (1) back to the supporting part (11) is provided with a plane matched with the gear cover (5), the gear cover (5) is fixed on the plane, and the gear set is covered by the gear cover (5); the terminal surface of wheel body is equipped with protective cover (7), and protective cover (7) center is equipped with wire hole (74), and the center of half shell is equipped with outlet ring (71), and outlet ring (71) rotate with wire hole (74) to be connected and sealed cooperation.

2. A high protection class drive wheel according to claim 1, wherein: the gear cover (5) is provided with shaft hole (53) corresponding to the position of the rotating shaft (21), the rotating shaft (21) penetrates through the shaft hole (53) and extends out of the gear cover (5), the brake (6) is arranged at the end part of the rotating shaft (21), and the brake (6) and the gear cover (5) are fixedly arranged.

3. A high protection class drive wheel according to claim 1, wherein: a first oil seal (14) is arranged between the rotating shaft (21) and the bracket (1), and a sealing gasket (51) is arranged between the gear cover (5) and the bracket (1); a shaft hole (53) is formed in the position, corresponding to the rotating shaft (21), of the gear cover (5), and a third oil seal (61) is arranged between the shaft hole (53) and the rotating shaft (21).

4. A high protection class drive wheel according to claim 1, wherein: the gear set comprises a driving gear (22) installed on the motor assembly (2), a rotatable transmission shaft (3) is arranged on the support (1), the transmission shaft (3) penetrates through the support (1), a first transmission gear (31) is arranged at one end of the transmission shaft (3), a second transmission gear (32) is arranged at the other end of the transmission shaft (3), the first transmission gear (31) and the second transmission gear (32) are respectively located on two sides of the support (1), and the first transmission gear (31) is meshed with the driving gear (22); a gear ring (42) is fixed on one side of the wheel body (4) close to the support (1), and the gear ring (42) is meshed with the second transmission gear (32).

5. A high protection class drive wheel according to claim 1, wherein: a second oil seal (43) is arranged between the gear ring (42) and the support (1), and a bearing (41) with a dustproof cover is arranged between the wheel body (4) and the supporting part (11).

6. A high protection class drive wheel according to claim 1, wherein: the side of the bracket (1) for mounting the gear is provided with a circle of annular bulges matched with the shape of the gear cover (5), the annular bulges are provided with a plurality of screw holes, the gear cover (5) is fixed on the annular bulges through screws, a sealing gasket (51) is arranged between the gear cover (5) and the annular bulges, and the height of the annular bulges can be 3-5mm.

7. A high protection class drive wheel according to claim 1, wherein: the gear cover (5) is formed by plastic injection molding or metal punch forming.