Gear box structure for pedal motor

Abstract

The present application relates to a gearbox structure for a pedal motor, belonging to the technical field of gearboxes. The gearbox structure for a pedal motor includes a gearbox body, the gearbox body includes a first shell, a second shell and a third shell, the first shell is used to connect with the motor housing, an oil storage tank is slidably arranged in the second shell, the oil storage tank is located on one side of the transmission shaft in the second shell, a sliding member for driving the oil storage tank to slide is arranged outside the second shell, an oil outlet is provided on the side of the oil storage tank close to the transmission shaft in the second shell, the oil storage tank is provided with an opening and closing member for opening and closing the oil outlet, the oil outlet is connected to a brush tube through a retractable bellows, and a transmission member is arranged on the oil storage tank for moving the brush tube toward the direction close to the transmission shaft in the second shell when the opening and closing member opens the oil outlet. The present application has the effect of facilitating the operator to lubricate the transmission mechanism.

Description

Technical Field

[0001] The present application relates to the technical field of gear boxes, and in particular to a gear box structure for a pedal motor. Background Art

[0002] A car electric pedal usually refers to a pedal that can be automatically rotated out or retracted through a motor and a transmission mechanism, which can provide convenience for getting on and off high-chassis cars.

[0003] In order to protect the transmission mechanism, the transmission mechanism of the pedal motor is generally arranged in a gear box. When the transmission mechanism in the gear box needs to be lubricated, the gear box usually needs to be opened, which is a rather troublesome operation. Summary of the invention

[0004] In order to facilitate the operator to lubricate the transmission mechanism in the gear box body, the present application provides a gear box structure for a pedal motor.

[0005] The present application provides a gearbox structure for a pedal motor using the following technical solution:

[0006] A gearbox structure for a pedal motor includes a gearbox body, the gearbox body includes a first shell, a second shell and a third shell, the first shell is used to be connected to the motor housing, an oil storage tank is slidably arranged in the second shell, the oil storage tank is located on one side of the transmission shaft in the second shell, the sliding direction of the oil storage tank is parallel to the rotation axis of the transmission shaft in the second shell, a sliding member for driving the oil storage tank to slide is arranged outside the second shell, an oil outlet is opened on the side of the oil storage tank close to the transmission shaft in the second shell, the oil storage tank is provided with an opening and closing member for opening and closing the oil outlet, the oil outlet is connected to a brush tube through a retractable bellows, and a transmission member is provided on the oil storage tank for moving the brush tube toward the direction close to the transmission shaft in the second shell when the opening and closing member opens the oil outlet.

[0007] Preferably, the opening and closing part includes an opening and closing plate, a first spring, an iron block and a first magnet, the opening and closing plate is slidably arranged in the oil storage tank, the sliding direction of the opening and closing plate is perpendicular to the depth direction of the oil outlet, the sliding direction of the opening and closing plate is perpendicular to the rotation axis of the transmission shaft in the second shell, an adjusting hole is opened on the opening and closing plate, the first spring is arranged between the inner wall of the oil storage tank and the opening and closing plate, the first spring is used to push the opening and closing plate to make the adjusting hole slide in the direction away from the oil outlet, when the first spring is in a natural state, the adjusting hole and the oil outlet are offset, and the opening and closing plate closes the oil outlet; the iron block is arranged on the opening and closing plate, a fixed plate is arranged in the second shell, the first magnet is arranged on the fixed plate at intervals along the sliding direction of the oil storage tank, the first magnet is used to be adsorbed and cooperated with the iron block separated by the outer wall of the oil storage tank, and the adsorption force between the iron block and the first magnet is greater than the thrust of the first spring.

[0008] Preferably, the transmission member includes a second spring, an iron sheet, a second magnet, a third spring and a pull rope, the second spring is arranged between the brush tube and the oil storage tank, the second spring is used to push the brush tube to slide in the direction close to the transmission shaft in the second shell, the iron sheet is arranged on the side of the opening and closing plate away from the iron block, the second magnet is slidably arranged on the side of the oil storage tank close to the transmission shaft, the sliding direction of the second magnet is parallel to the sliding direction of the opening and closing plate, the second magnet is located on the side of the bellows away from the first magnet, the second magnet is used to be adsorbed and cooperated with the outer wall of the oil storage tank separated by the iron sheet, the third spring is arranged between the oil storage tank and the second magnet, the third spring is used to push the second magnet to move in the direction away from the bellows, the thrust of the third spring is greater than the thrust of the second spring, the adsorption force between the second magnet and the iron sheet is greater than the thrust of the third spring, one end of the pull rope is fixedly connected to the brush tube, and the other end is fixedly connected to the second magnet.

[0009] Preferably, a weight-reducing groove is provided on a side of the first shell close to the motor, the second shell is arranged on the first shell and communicated with the first shell, and the third shell is arranged on a side of the second shell away from the first shell and communicated with the second shell.

[0010] Preferably, a butt joint is threadedly connected to the second shell, and the butt joint is used for butt-fitting with the transmission shaft in the second shell.

[0011] Preferably, a sealing ring is provided on a side of the abutment joint away from the transmission shaft in the second housing, and the sealing ring is arranged along the circumference of the abutment joint.

[0012] Preferably, the first shell is provided with a protective sleeve for covering a driving shaft connected to the motor, and a notch is provided on a side wall of the protective sleeve.

[0013] Preferably, a wire take-up tube is provided on a side of the first shell away from the motor, and a waterproof connector for enhancing waterproof performance is provided between the wire take-up tube and the first shell.

[0014] Preferably, the waterproof connector includes a connecting tube and a plurality of protrusions arranged on the connecting tube, the end of the connecting tube close to the protrusion is connected to the first shell, and the end of the connecting tube away from the first shell is connected to the wire take-up tube by wrapping with tape.

[0015] Preferably, the first shell is provided with an assembly hole for plugging with the connecting tube, the protrusion abuts against the inner wall of the assembly hole, and the inner wall of the first shell close to the assembly hole is provided with an avoidance groove, and the avoidance groove is located on the side of the first shell close to the motor.

[0016] In summary, this application includes the following beneficial technical effects:

[0017] The oil storage tank is driven to slide by an external sliding member, and the oil outlet is opened by the opening and closing member. When the oil outlet is opened by the transmission member, the brush tube slides toward the direction close to the transmission shaft, and the lubricating oil is brushed onto the transmission shaft through the oil outlet, the bellows and the brush tube. The oil outlet is then closed by the opening and closing member, and the brush tube is moved away from the transmission shaft by the transmission member. In this reciprocating manner, the transmission shaft can be lubricated without opening the gear box body, thereby facilitating the operator to lubricate the transmission mechanism in the gear box body. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application.

[0019] Figure 2 It is an exploded diagram of the overall structure of an embodiment of the present application.

[0020] Figure 3 It is a partial structural cross-sectional view of an embodiment of the present application.

[0021] Figure 4 yes Figure 3 Enlarged view of part A.

[0022] Figure 5 It is a cross-sectional view of the overall structure of the oil storage tank in the embodiment of the present application.

[0023] Explanation of reference numerals: 1. gearbox body; 101. first housing; 102. second housing; 103. third housing; 2. weight reduction groove; 3. abutment; 4. sealing ring; 5. hexagonal stud; 6. protective cover; 7. notch; 8. wire take-up tube; 9. waterproof connector; 91. connector; 92. protrusion; 10. assembly hole; 11. avoidance groove; 12. oil storage tank; 13. guide block; 14. guide rod; 15. oil outlet; 16. brush tube; 17. screw rod; 18. transmission rod; 19. first bevel gear; 20. second bevel gear ; 21. Connecting block; 22. Hexagonal column; 23. Support plate; 24. Opening and closing plate; 25. First spring; 26. Iron block; 27. First magnet; 28. Adjusting hole; 29. ​​Telescopic rod; 30. Second spring; 31. Iron sheet; 32. Second magnet; 33. Third spring; 34. Pull rope; 35. Support rod; 36. Guide pulley; 37. Brush; 38. Oil inlet hole; 39. Sealing plate; 40. Fourth spring; 41. Oil delivery hole; 42. Block; 43. Adjusting block; 44. Connecting seat; 45. Fixing plate; 46. Bellows. DETAILED DESCRIPTION

[0024] The following is combined with Figure 1-5 This application is described in further detail.

[0025] The present application embodiment discloses a gearbox structure for a pedal motor. Figure 1 and Figure 2 The gearbox structure for the pedal motor includes a gearbox body 1, which includes a first shell 101, a second shell 102 and a third shell 103. The first shell 101 is connected to the motor housing by bolts, and the cross-section of the first shell 101 is circular. The second shell 102 is integrally formed on the first shell 101 and is connected to the first shell 101. The longitudinal section of the second shell 102 is circular. The third shell 103 is integrally formed on a side of the second shell 102 away from the first shell 101 and is connected to the second shell 102. The cross-section of the third shell 103 is circular.

[0026] Reference Figure 3 and Figure 4 An oil storage tank 12 is slidably arranged in the second shell 102. The oil storage tank 12 is located on one side of the transmission shaft in the second shell 102. The sliding direction of the oil storage tank 12 is parallel to the rotation axis of the transmission shaft in the second shell 102. A guide block 13 is fixed on one side of the oil storage tank 12. A guide rod 14 is fixed in the second shell 102. The length direction of the guide rod 14 is parallel to the sliding direction of the oil storage tank 12. The guide block 13 is slidably sleeved on the guide rod 14 to guide the sliding of the oil storage tank 12; a sliding member for driving the oil storage tank 12 to slide is arranged outside the second shell 102.

[0027] Reference Figure 3 and Figure 4 In order to facilitate the sliding of the oil storage tank 12, the sliding member includes a screw 17, a transmission rod 18, a first bevel gear 19 and a second bevel gear 20. Support plates 23 are relatively fixed in the second housing 102. The screw 17 is rotatably arranged on the support plates 23 on both sides. The rotation axis of the screw 17 is parallel to the sliding direction of the oil storage tank 12. The screw 17 is located on the side of the oil storage tank 12 away from the guide block 13. A connecting block 21 (refer to Figure 5), the connecting block 21 is threadedly connected to the screw 17; the transmission rod 18 is rotatably penetrated on the second shell 102, so that the transmission rod 18 extends outside the second shell 102, and the rotation axis of the transmission rod 18 is perpendicular to the rotation axis of the screw 17. The first bevel gear 19 is fixedly sleeved on the end of the screw 17 away from the abutment head 3, and the second bevel gear 20 is fixedly sleeved on the end of the transmission rod 18 located in the second shell 102. The first bevel gear 19 is meshed with the second bevel gear 20. A hexagonal column 22 is fixed on the end of the transmission rod 18 located outside the second shell 102, and a sealing gasket (not shown in the figure) is fixed along the circumferential direction on the side of the transmission rod 18 away from the screw 17. The sealing gasket abuts against the inner wall of the second shell 102, which helps to enhance the sealing between the transmission rod 18 and the second shell 102. In other embodiments, the screw 17, the transmission rod 18, the first bevel gear 19 and the second bevel gear 20 can be replaced by a screw that is rotatably inserted into the second housing 102, a drive motor that is fixedly mounted on the outer wall of the second housing 102 and a controller mounted on the second housing 102, the drive motor is electrically connected to the controller, the screw is coaxially fixed to the output shaft of the drive motor, and the connecting block 21 is threadedly sleeved on the screw. The drive motor is started by the controller, and the drive motor drives the screw to rotate, which can also drive the connecting block 21 to drive the oil storage tank 12 to slide.

[0028] Reference Figure 3 and Figure 5 An oil outlet 15 is provided on the side of the oil storage tank 12 close to the transmission shaft in the second shell 102, and an opening and closing member for opening and closing the oil outlet 15 is provided on the oil storage tank 12. The oil outlet 15 is connected to a brush tube 16 through a retractable bellows 46, one end of the bellows 46 is connected to the oil outlet 15, and the other end is connected to the brush tube 16; the oil storage tank 12 is provided with a transmission member for moving the brush tube 16 toward the direction close to the transmission shaft in the second shell 102 when the opening and closing member opens the oil outlet 15.

[0029] Reference Figure 3 and Figure 5In order to facilitate opening and closing of the oil outlet 15, the opening and closing member includes an opening and closing plate 24, a first spring 25, an iron block 26 and a first magnet 27. The opening and closing plate 24 is slidably arranged on the inner wall of the oil storage tank 12 near the oil outlet 15. The sliding direction of the opening and closing plate 24 is perpendicular to the depth direction of the oil outlet 15. The sliding direction of the opening and closing plate 24 is perpendicular to the rotation axis of the transmission shaft in the second housing 102. An adjusting hole 28 is opened on the opening and closing plate 24. A telescopic rod 29 is fixed between the opening and closing plate 24 and the inner wall of the second housing 102. The telescopic direction of the telescopic rod 29 is parallel to the sliding direction of the opening and closing plate 24. The telescopic rod 29 is located at the opening and closing plate 24 away from the adjusting hole 28. On one side of the node hole 28, in the present embodiment, two telescopic rods 29 are relatively arranged, and the telescopic rod 29 is located on the side of the opening and closing plate 24 close to the screw 17. The first spring 25 is movably sleeved on the telescopic rod 29. The extension direction of the first spring 25 is parallel to the extension direction of the telescopic rod 29. One end of the first spring 25 is fixed to the inner wall of the oil storage tank 12, and the other end is fixed to the opening and closing plate 24. The first spring 25 is used to push the opening and closing plate 24 to make the adjustment hole 28 slide in the direction away from the oil outlet 15. When the first spring 25 is in a natural state, the adjustment hole 28 and the oil outlet 15 are offset, and the opening and closing plate 24 closes the oil outlet 15.

[0030] Reference Figure 3 and Figure 5 The iron block 26 is fixed to the side of the opening and closing plate 24 close to the telescopic rod 29, the iron block 26 is located between the two telescopic rods 29, and a fixed plate 45 is fixed between the two side support plates 23. The fixed plate 45 is located on the side of the screw 17 away from the oil storage tank 12. The first magnet 27 is arranged on the fixed plate 45 at intervals along the sliding direction of the oil storage tank 12. The first magnet 27 is located below the screw 17 and the connecting block 21. The first magnet 27 is flush with the iron block 26 and is used to be adsorbed and cooperated with the iron block 26 on the outer wall of the oil storage tank 12. The adsorption force between the iron block 26 and the first magnet 27 is greater than the thrust of the first spring 25. When the oil storage tank 12 is located at the end of the screw 17, the iron block 26 is separated from the first magnet 27.

[0031] Reference Figure 3 and Figure 5In order to facilitate the brush tube 16 to move toward the direction close to the transmission shaft when the opening and closing member opens the oil outlet 15, the transmission member includes a second spring 30, an iron sheet 31, a second magnet 32, a third spring 33 and a pull rope 34. The second spring 30 is sleeved on the bellows 46, one end of the second spring 30 is fixed on the brush tube 16, and the other end is fixedly arranged on the outer wall of the oil storage tank 12. The second spring 30 is used to push the brush tube 16 to slide toward the direction close to the transmission shaft in the second shell 102; the iron sheet 31 is fixed to the side of the opening and closing plate 24 away from the iron block 26 through the support rod 35, and the second magnet 32 ​​is slidably arranged on the side of the oil storage tank 12 close to the transmission shaft, and the sliding direction of the second magnet 32 ​​is parallel to the sliding direction of the opening and closing plate 24. The second magnet 32 ​​is located on the bellows 46 away from the first magnet 2 On one side of 7, the second magnet 32 ​​and the iron sheet 31 are adsorbed and matched with each other across the outer wall of the oil storage tank 12, the third spring 33 is arranged between the outer wall of the oil storage tank 12 and the second magnet 32, the extension direction of the third spring 33 is parallel to the sliding direction of the second magnet 32, the third spring 33 is used to push the second magnet 32 ​​to move in the direction away from the bellows 46, the thrust of the third spring 33 is greater than the thrust of the second spring 30, the adsorption force between the second magnet 32 ​​and the iron sheet 31 is greater than the thrust of the third spring 33, one end of the pull rope 34 is fixedly connected to the brush tube 16, and the other end is fixedly connected to the second magnet 32, a guide pulley 36 is installed on the side of the oil storage tank 12 close to the bellows 46, and the pull rope 34 between the brush tube 16 and the second magnet 32 ​​is slidably overlapped on the guide pulley 36.

[0032] Reference Figure 3 and Figure 5 A plurality of through holes (not shown) are provided on one side of the brush tube 16 close to the transmission shaft in the second shell 102 . The through holes are connected to the bellows 46 . Bristles 37 are provided in the through holes for contacting the transmission shaft in the second shell 102 .

[0033] In the initial state, the oil storage tank 12 is located at one end of the screw 17 close to the transmission rod 18; the iron block 26 is disengaged from the first magnet 27, the opening and closing plate 24 closes the oil outlet 15 under the push of the first spring 25, and the second magnet 32 ​​is moved away from the first magnet 27 under the thrust of the third spring 33. The brush tube 16 is pulled away from the transmission shaft in the second shell 102 by the pull rope 34, so that the bristles 37 are disengaged from the transmission shaft in the second shell 102, thereby facilitating the rotation of the transmission shaft for work.

[0034] When it is necessary to supply oil to the transmission shaft in the second housing 102, an external tool is used to rotate the hexagonal column 22, and the hexagonal column 22 drives the transmission rod 18 to rotate, and the transmission of the first bevel gear 19 and the second bevel gear 20 drives the screw 17 to rotate, and then the screw 17 drives the connecting block 21 to drive the oil storage tank 12 to slide in the direction away from the transmission rod 18, and then the oil storage tank 12 moves to the first magnet 27, and the iron block 26 moves in the direction away from the iron sheet 31 under the adsorption force of the first magnet 27, compressing the first spring 25, and the adjustment hole 28 is close to the oil outlet 15 and aligned with the oil outlet 15 to open the oil outlet 15. At this time, the iron sheet 31 drives the second magnet 32 ​​to slide in the direction close to the bellows 46 to compress the third spring 33, thereby reducing the pulling force on the pull rope 34, and the brush tube 16 moves towards the transmission shaft under the action of the second spring 30. The lubricating oil flows from the oil outlet 15, the bellows 46 and the brush tube 16 from the through hole to the bristles 37. The lubricating oil on the bristles 37 is brushed onto the transmission shaft. Then the oil storage tank 12 moves between the two first magnets 27 to disengage the iron block 26 from the first magnet 27. The opening and closing plate 24 closes the oil outlet 15 under the push of the first spring 25. The second magnet 32 ​​moves away from the first magnet 27 under the thrust of the third spring 33. The brush tube 16 is pulled away from the transmission shaft by the pull rope 34 to disengage the bristles 37 from the transmission shaft. This reciprocating process is repeated until the oil storage tank 12 moves to one end of the screw rod 17 away from the transmission rod 18. The transmission rod 18 is then rotated in the opposite direction to move the oil storage tank 12 to the initial position. The oil outlet 15 is closed, thereby realizing lubrication of the transmission shaft. There is no need to open the second housing 102, which facilitates the operator's oil supplying work.

[0035] Reference Figure 4 and Figure 5 An oil inlet hole 38 is provided on the side of the oil tank 12 away from the transmission shaft in the second housing 102. A blocking plate 39 is slidably connected to the side of the oil tank 12 away from the transmission shaft in the second housing 102. The sliding of the blocking plate 39 is parallel to the sliding direction of the oil tank 12. A fourth spring 40 is provided on the oil tank 12 for pushing the blocking plate 39 to slide in a direction close to the oil inlet hole 38. One end of the fourth spring 40 is fixedly provided on the oil tank 12, and the other end is fixedly provided on the blocking plate 39. The fourth spring 40 is located at a position where the blocking plate 39 is away from the transmission rod 1 8; an oil delivery hole 41 is opened on the side of the second shell 102 close to the transmission rod 18, and a blocking block 42 is threadedly connected to the oil delivery hole 41 of the second shell 102. An adjusting block 43 is fixed to the inner wall of the second shell 102, and the adjusting block 43 is aligned with the oil delivery hole 41. The oil delivery hole 41 passes through the adjusting block 43, and the adjusting block 43 is located on the side of the blocking plate 39 close to the transmission rod 18. The adjusting block 43 is used to abut against the blocking plate 39. When the oil storage tank 12 is located at one end of the screw rod 17 close to the first bevel gear 19, the oil inlet hole 38 is aligned with the oil delivery hole 41.

[0036] When the screw rod 17 rotates to drive the oil storage tank 12 to move toward the direction close to the transmission rod 18 for reset, the blocking plate 39 gradually approaches the adjusting block 43, and then the blocking plate 39 abuts against the adjusting block 43. As the oil storage tank 12 continues to move, the oil storage tank 12 and the blocking plate 39 slide relative to each other, compressing the fourth spring 40, and the blocking plate 39 gradually opens the oil inlet hole 38 until the oil inlet hole 38 is aligned and connected with the oil delivery hole 41. By rotating the blocking block 42, the blocking block 42 is removed from the second shell 102, which helps to replenish the lubricating oil in the oil storage tank 12 for continuous use.

[0037] Reference Figure 1 and Figure 2 The first housing 101 is provided with a weight-reducing groove 2, which is located on the side of the first housing 101 close to the motor. The setting of the weight-reducing groove 2 effectively reduces the weight of the gearbox body 1, facilitates the transportation and use of the gearbox body 1, and reduces the manufacturing cost; the weight-reducing groove 2 is located on the side of the first housing 101 close to the motor, so that the weight-reducing groove 2 is highly concealed, ensuring the flatness of the outer surface of the gearbox body 1.

[0038] Reference Figure 1 and Figure 2 There are multiple weight-reducing grooves 2, which are spaced apart on the first housing 101 along the circumferential direction of the motor axis. In this embodiment, there are three weight-reducing grooves 2, which are close to each other and located on the same side of the motor, and the cross-sectional area of ​​the weight-reducing groove 2 in the middle position is larger than the cross-sectional area of ​​the weight-reducing grooves 2 on both sides. In other embodiments, the number of weight-reducing grooves 2 can be set according to the actual cross-sectional area of ​​the first housing 101. The spaced-apart weight-reducing grooves 2 help to improve the structural stability and balance of the first housing 101.

[0039] Reference Figure 1 A protective cover 6 is integrally formed on the first housing 101. The protective cover 6 is located on the side of the first housing 101 away from the motor and extends toward the side away from the motor. The protective cover 6 is located on the side of the second housing 102 away from the third housing 103. The protective cover 6 corresponds to the output shaft of the pedal motor and is used to cover the drive shaft connected to the motor. The drive shaft connected to the motor rotates and passes through the first housing 101 and extends into the protective cover 6 to protect the drive shaft connected to the motor. A notch 7 is provided on the side wall of the protective cover 6. The notch 7 can be provided to avoid the automobile pedal mounting bracket and reduce the wear of the protective cover 6 during use.

[0040] Reference Figure 1 and Figure 2A connecting seat 44 is integrally formed on the side of the first shell 101 away from the motor. The connecting seat 44 is located on the side of the protective cover 6 away from the notch 7. The connecting seat 44 is located on the side of the second shell 102 away from the third shell 103. A wire take-up tube 8 is provided on the connecting seat 44. The wire take-up tube 8 is used to wrap and protect the cables connected to the PCB on the motor. PCB refers to a printed circuit board. A waterproof connector 9 for enhancing the waterproof performance is provided between the wire take-up tube 8 and the connecting seat 44.

[0041] Reference Figure 1 and Figure 2 In order to enhance the waterproof performance between the wire take-up tube 8 and the connecting seat 44, the waterproof connector 9 includes a connecting tube 91 and a multi-section protrusion 92. The connecting seat 44 is provided with an assembly hole 10 for plugging with the connecting tube 91. The assembly hole 10 passes through the gear box body 1. The multi-section protrusion 92 is fixed on the connecting tube 91 along the circumference of the connecting tube 91. The connecting tube 91 is inserted into the assembly hole 10. The multi-section protrusion 92 on the connecting tube 91 abuts against the inner wall of the assembly hole 10. The end of the connecting tube 91 close to the protrusion 92 is connected to the connecting seat 44, and the end of the connecting tube 91 away from the first shell 101 is tied and connected to the wire take-up tube 8 by wrapping with tape.

[0042] When in use, the cable connected to the PCB on the motor passes through the connector tube 91 and is located in the take-up tube 8, which protects the cable; the protrusion 92 on the side of the connector tube 91 close to the take-up tube 8 abuts against the assembly hole 10 on the connecting seat 44, which helps to reduce the entry of external water into the first shell 101 and the motor. The tape is wrapped around the connection between the connector tube 91 and the take-up tube 8, which can reduce the entry of external water into the connector tube 91 or the take-up tube 8, thereby effectively protecting the cable.

[0043] Reference Figure 1 and Figure 2 An avoidance groove 11 is provided on the inner wall of the first housing 101 on the side close to the assembly hole 10. The avoidance groove 11 is located on the side of the first housing 101 close to the motor, and the avoidance groove 11 is located on the side of the assembly hole 10 away from the motor output shaft. Since the distance between the assembly hole 10 and the motor output shaft is small during molding, it is not easy to cut, and the setting of the avoidance groove 11 provides a position for the connection between the connector 91 and the assembly hole 10.

[0044] Reference Figure 1 and Figure 3, a butt joint 3 is threadedly connected to one side of the second housing 102, and the butt joint 3 is located on the side of the second housing 102 away from the connecting seat 44. The rotation axis of the butt joint 3 is parallel to the rotation axis of the transmission shaft in the second housing 102, and the butt joint 3 is used to abut and cooperate with the outer ring of the bearing on the transmission shaft in the second housing 102. The threaded connection between the butt joint 3 and the second housing 102 helps to open or close the second housing 102. The butt joint 3 abuts against the outer ring of the bearing on the transmission shaft in the second housing 102, which can limit the axial position of the bearing and the transmission shaft, and prevent the transmission shaft in the second housing 102 from axial movement. A hexagonal stud 5 is fixed on the side of the butt joint 3 away from the second housing 102, which is convenient for rotating the butt joint 3 with a wrench.

[0045] Reference Figure 1 and Figure 3 A sealing ring 4 is embedded on the side of the abutment 3 away from the transmission shaft in the second housing 102, and the sealing ring 4 is arranged along the circumference of the abutment 3. The sealing ring 4 helps to improve the sealing performance between the abutment 3 and the second housing 102, and reduces the possibility of external water entering the gearbox body 1.

[0046] The implementation principle of the embodiment of the present application is as follows: when it is necessary to supply oil to the transmission shaft in the second housing 102, an external tool is used to rotate the hexagonal column 22, the hexagonal column 22 drives the transmission rod 18 to rotate, and the screw 17 is driven to rotate through the transmission of the first bevel gear 19 and the second bevel gear 20, and then the screw 17 drives the connecting block 21 to drive the oil storage tank 12 to slide in the direction away from the transmission rod 18, and the blocking plate 39 gradually closes the oil inlet hole 38 under the action of the fourth spring 40, and then the oil storage tank 12 moves to the first magnet 27, and the iron block 26 moves in the direction away from the iron sheet 31 under the adsorption force of the first magnet 27, and the adjustment hole 28 is aligned with the oil outlet 15 close to the oil outlet 15, and the oil outlet 15 is opened. At this time, the iron sheet 31 drives the second magnet 32 ​​to slide in the direction close to the bellows 46, and the brush tube 16 slides in the direction close to the transmission shaft in the second shell 102 under the action of the second spring 30. The lubricating oil flows from the through hole to the bristles 37 through the oil outlet 15, the bellows 46, and the brush tube 16, and the lubricating oil on the bristles 37 is brushed onto the transmission shaft.

[0047] Then the oil storage tank 12 moves between the two first magnets 27, so that the iron block 26 is disengaged from the first magnet 27, and the opening and closing plate 24 closes the oil outlet 15 under the push of the first spring 25. The second magnet 32 ​​is away from the first magnet 27 under the thrust of the third spring 33, and the brush tube 16 is pulled away from the transmission shaft by the pull rope 34, so that the bristles 37 are disengaged from the transmission shaft, and this reciprocating process is repeated until the oil storage tank 12 moves to the end of the screw rod 17 away from the transmission rod 18, and then the transmission rod 18 is rotated in the opposite direction to drive the oil storage tank 12 to move to the initial position, thereby realizing lubrication of the transmission mechanism in the gear box body 1, without opening the gear box body 1, providing convenience for the operator's oiling and lubrication work.

[0048] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A gearbox structure for a pedal motor, Features: The invention comprises a gearbox body (1), wherein the gearbox body (1) comprises a first shell (101), a second shell (102) and a third shell (103), wherein the first shell (101) is used to be connected to a motor housing, an oil storage tank (12) is slidably arranged in the second shell (102), the oil storage tank (12) is located on one side of a transmission shaft in the second shell (102), the sliding direction of the oil storage tank (12) is parallel to the rotation axis of the transmission shaft in the second shell (102), a sliding member for driving the oil storage tank (12) to slide is arranged outside the second shell (102), and the oil storage tank (12) is arranged on the outside of the second shell (102). An oil outlet (15) is provided on one side of the oil storage tank (12) close to the transmission shaft in the second housing (102); the oil storage tank (12) is provided with an opening and closing member for opening and closing the oil outlet (15); the oil outlet (15) is connected to a brush tube (16) via a retractable bellows (46); the oil storage tank (12) is provided with a transmission member for moving the brush tube (16) toward the direction close to the transmission shaft in the second housing (102) when the opening and closing member opens the oil outlet (15); the opening and closing member comprises an opening and closing plate (24), a first spring (25), an iron block (26) and a first magnet (27); The opening and closing plate (24) is slidably arranged in the oil storage tank (12), the sliding direction of the opening and closing plate (24) is perpendicular to the depth direction of the oil outlet (15), the sliding direction of the opening and closing plate (24) is perpendicular to the rotation axis of the transmission shaft in the second housing (102), the opening and closing plate (24) is provided with an adjustment hole (28), the first spring (25) is arranged between the inner wall of the oil storage tank (12) and the opening and closing plate (24), the first spring (25) is used to push the opening and closing plate (24) to make the adjustment hole (28) slide in a direction away from the oil outlet (15), and when the first spring (25) is in In a natural state, the regulating hole (28) and the oil outlet (15) are arranged in a staggered manner, and the opening and closing plate (24) closes the oil outlet (15); the iron block (26) is arranged on the opening and closing plate (24), a fixing plate (45) is arranged in the second shell (102), the first magnet (27) is arranged on the fixing plate (45) at intervals along the sliding direction of the oil storage tank (12), the first magnet (27) is used to be adsorbed and matched with the iron block (26) separated by the outer wall of the oil storage tank (12), and the adsorption force between the iron block (26) and the first magnet (27) is greater than the thrust of the first spring (25).

2. A gearbox structure for a pedal motor according to claim 1, Features: The transmission member comprises a second spring (30), an iron sheet (31), a second magnet (32), a third spring (33) and a pull rope (34); the second spring (30) is arranged between the brush tube (16) and the oil storage tank (12); the second spring (30) is used to push the brush tube (16) to slide in a direction close to the transmission shaft in the second shell (102); the iron sheet (31) is arranged on a side of the opening and closing plate (24) away from the iron block (26); the second magnet (32) is slidably arranged on a side of the oil storage tank (12) close to the transmission shaft; the sliding direction of the second magnet (32) is parallel to the sliding direction of the opening and closing plate (24); the second magnet (32) is located at the bellows ( 46) is on a side away from the first magnet (27), the second magnet (32) is used to be adsorbed and cooperated with the iron sheet (31) on the outer wall of the oil storage tank (12), the third spring (33) is arranged between the oil storage tank (12) and the second magnet (32), the third spring (33) is used to push the second magnet (32) to move in a direction away from the bellows (46), the thrust of the third spring (33) is greater than the thrust of the second spring (30), the adsorption force between the second magnet (32) and the iron sheet (31) is greater than the thrust of the third spring (33), one end of the pull rope (34) is fixedly connected to the brush tube (16), and the other end is fixedly connected to the second magnet (32).

3. The gearbox structure for a pedal motor according to claim 1, Features: A weight-reducing groove (2) is provided on a side of the first shell (101) close to the motor; the second shell (102) is arranged on the first shell (101) and is in communication with the first shell (101); and the third shell (103) is arranged on a side of the second shell (102) away from the first shell (101) and is in communication with the second shell (102).

4. The gear box structure for a pedal motor according to claim 1, Features: The second housing (102) is threadedly connected with an abutment joint (3), and the abutment joint (3) is used for abutting and cooperating with a transmission shaft in the second housing (102).

5. A gearbox structure for a pedal motor according to claim 4, Features: A sealing ring (4) is provided on the side of the abutment joint (3) away from the transmission shaft in the second housing (102), and the sealing ring (4) is arranged along the circumference of the abutment joint (3).

6. The gear box structure for a pedal motor according to claim 1, Features: The first housing (101) is provided with a protective sleeve (6) for covering a driving shaft connected to the motor, and a notch (7) is provided on a side wall of the protective sleeve (6).

7. The gear box structure for a pedal motor according to claim 1, Features: A wire take-up tube (8) is arranged on a side of the first housing (101) away from the motor, and a waterproof connector (9) for enhancing waterproof performance is arranged between the wire take-up tube (8) and the first housing (101).

8. The gear box structure for a pedal motor according to claim 7, Features: The waterproof connector (9) comprises a connector tube (91) and a plurality of protrusions (92) arranged on the connector tube (91); one end of the connector tube (91) close to the protrusion (92) is connected to the first shell (101); and one end of the connector tube (91) away from the first shell (101) is connected to the wire take-up tube (8) by winding with tape.

9. The gear box structure for a pedal motor according to claim 8, Features: The first shell (101) is provided with an assembly hole (10) for plugging with the connecting tube (91), the protrusion (92) is in abutment with the inner wall of the assembly hole (10), and the first shell (101) is provided with an avoidance groove (11) on the inner wall of the side close to the assembly hole (10), and the avoidance groove (11) is located on the side of the first shell (101) close to the motor.

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