Four-wheel drive device

Abstract

The present invention discloses a four-wheel drive device, comprising a driving wheel and a transmission device, wherein driving wheels are arranged on both sides of the transmission device, a connecting piece is arranged on the top of the transmission device, a transmission port is opened on the rear side of the transmission device, and parallel driven gears are arranged inside the transmission port, and the driven gears are respectively installed at the ends of two roller shafts, and bearing seats are respectively installed on the outside of the two sides of the roller shaft, and a fixing seat is arranged at the bottom of the bearing seat, and a first gear is respectively installed on the other end of the roller shaft, and a clamping sheet is arranged on the outside of the first gear, and a main rotating shaft is respectively installed inside the driving wheel, and a double-ring bearing is installed on the outside of the main rotating shaft joint, and the double-ring bearing is composed of two single-ring bearings fitted together, and the two single-ring bearings share the same outer ring, and second gears are respectively installed on both sides of the main rotating shaft and the double-ring bearing, and the second gear is meshed with the first gear. The present invention can realize four-wheel drive in which the driving wheels share power and do not affect each other.

Description

Technical Field

[0001] The invention relates to the field of driving machinery, in particular to a four-wheel drive device. Background Art

[0002] The driving device of the car is a necessary device to make the car move. It is mostly achieved by the cooperation of the driving motor, gears and belts to realize the forward and backward movement of the car. Some cars used in special sections will adopt four-wheel drive due to poor road conditions. The four-wheel drive can enable the car to continue to move forward in harsh road conditions. As long as one or more driving wheels touch the ground, it can move forward and backward.

[0003] However, most existing four-wheel drive devices are front-to-rear drive, that is, the front drive wheels and the rear drive wheels are driven simultaneously, and single-row drive wheels cannot be driven one by one, making it difficult for the car to steer in bad road conditions.

[0004] So how to design a four-wheel drive device has become our current problem to be solved. Summary of the invention

[0005] The present invention aims at the above-mentioned deficiencies in the prior art and provides a disassembly and recovery device for power lithium batteries, which solves the problem that a vehicle cannot move forward and backward by turning a single driving wheel in harsh road conditions. As a result, each driving wheel of the vehicle is an independent driving device, which can achieve simultaneous driving and provide more operating space for the single driving wheel.

[0006] To achieve the above-mentioned purpose, the invention provides the following technical solutions: a four-wheel drive device, comprising a driving wheel and a transmission device, driving wheels are arranged on both sides of the transmission device, a connecting piece is arranged at the top of the transmission device, a transmission port is opened on the rear side of the transmission device, and parallel driven gears are arranged inside the transmission port, and the driven gears are respectively installed at the ends of two roller shafts, bearing seats are respectively installed on the outside of the two sides of the roller shaft, a fixing seat is arranged at the bottom of the bearing seat, a first gear is respectively installed at the other end of the roller shaft, a clamping sheet is arranged on the outside of the first gear, a main rotating shaft is respectively installed inside the driving wheel, the ends of the main rotating shaft are butt-jointed, and a double-ring bearing is installed on the outside of the main rotating shaft at the joint, the double-ring bearing is composed of two single-ring bearings fitted together, the two single-ring bearings share the same outer ring, and second gears are respectively installed on both sides of the main rotating shaft and the double-ring bearing, and the second gear is meshed with the first gear.

[0007] Preferably, the transmission device is a rectangular parallelepiped and is made of metal.

[0008] Preferably, the connecting member is a groove connecting member, a fixing screw is provided at the bottom of the connecting member and the bottom of the connecting member is tightly fitted and fixed to the transmission device by the fixing screw, and a screw hole is opened on the upper side of the connecting member.

[0009] Preferably, bearings are provided between the driven gears, and the driven gears are tightly welded and fixed to the inner ring and outer ring of the bearings respectively.

[0010] Preferably, the clamping plate fixes the first gear on the end of the roller shaft by means of fixing screws.

[0011] Preferably, the main shaft is provided with a positioning buckle inside the transmission device, and an arched claw is integrally provided outside the positioning buckle, and the end of the arched claw is tightly welded and fixed inside the transmission device.

[0012] Preferably, a connecting disk is integrally provided inside the driving wheel, the connecting disk is sleeved on the end of the main rotating shaft, and the main rotating shaft passes through the connecting disk, a fixing cap is fixed on the outside of the connecting disk, and the connecting disk is tightly fixed to the main rotating shaft through the fixing cap.

[0013] Compared with the prior art, the invention has the following beneficial effects:

[0014] 1. The four-wheel drive device adopts a method of disconnecting the roller shaft and the main shaft and fixing the roller shaft and the main shaft off the running track through specific components, which solves the problem that the trolley cannot move forward and backward by turning a single driving wheel under harsh road conditions. As a result, each driving wheel of the trolley is an independent driving device, which can achieve simultaneous driving and provide more operating space for the single driving wheel.

[0015] 2. In the four-wheel drive device, the main shaft is provided with a positioning buckle inside the transmission device, and the positioning buckle is integrally provided with an arched claw on the outside, which solves the problem that the operation of a single driving wheel of the four-wheel drive device affects the driving wheels of the group during the forward movement, so that each driving wheel of the four-wheel drive device can perform a single operation without interfering with the normal operation of the driving wheels of the group.

[0016] 3. The four-wheel drive device has a screw hole at the top of the connecting piece, which can further secure the drive device and the vehicle body during the installation process, solving the problem of unstable installation of the drive device and the vehicle body, resulting in gear meshing deviation and belt misalignment, thereby improving the firmness of the four-wheel drive device and providing stable conditions for the operation of the gears and belts inside the device.

[0017] 4. The main bearings of the four-wheel drive device are connected by inner double-ring bearings, which solves the problem that traditional bearings cannot realize the single operation of a pair of driving wheels. As a result, the pair of driving wheels do not interfere with each other during operation, and can provide a certain stability to the pair of driving wheels, preventing the parts from being misaligned due to the breakage of the main shaft.

[0018] 5. The four-wheel drive device indirectly transmits the power to the main shaft by meshing the first gear and the second gear, which solves the problem that the speed of the driving wheel is limited and affected by the driving motor when the driving motor is directly driven. The power of the driving motor is transmitted to the main shaft after the gear meshing is stabilized, ensuring the smooth movement of the driving wheel. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 It is a schematic diagram of the back structure of the present invention;

[0021] Figure 3 It is the AA cross-sectional view of the present invention;

[0022] Figure 4 It is an enlarged view of the structure at B of the present invention;

[0023] Figure 5 This is an enlarged view of point B of the second embodiment of the present invention.

[0024] In the figure: 1-driving wheel; 2-connecting piece; 3-transmission device; 4-transmission port; 5-fixed seat; 6-bearing seat; 7-main shaft; 8-positioning buckle; 9-driven gear; 10-bearing; 11-pressure plate; 12-roller; 13-first gear; 14-second gear; 15-single-ring bearing; 16-double-ring bearing; 101-connecting plate; 102-fixing cap; 201-fixing screw. DETAILED DESCRIPTION

[0025] 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. Example 1

[0026] like Figure 1-4As shown, a four-wheel drive device comprises a driving wheel 1 and a transmission device 3, wherein the driving wheels 1 are arranged on both sides of the transmission device 3, a connecting piece 2 is arranged at the top of the transmission device 3, a transmission port 4 is opened at the rear side of the transmission device 3, and parallel driven gears 9 are arranged inside the transmission port 4, and the driven gears 9 are respectively installed at the ends of two roller shafts 12, and bearing seats 6 are respectively installed on the outside of the two sides of the roller shaft 12, and a fixing seat 5 is arranged at the bottom of the bearing seat 6, and a first gear 13 is respectively installed at the other end of the roller shaft 12, and a clamping sheet 11 is arranged on the outside of the first gear 13, and a main rotating shaft 7 is respectively installed inside the driving wheel 1, and the ends of the main rotating shaft 7 are butt-jointed, and a double-ring bearing 16 is installed on the outside of the main rotating shaft 7 at the butt joint, and the double-ring bearing 16 is composed of two single-ring bearings 15 fitted together, and the two single-ring bearings 15 share the same outer ring, and second gears 14 are respectively installed on both sides of the main rotating shaft 7 and the double-ring bearing 16, and the second gear 14 is meshed with the first gear 13. Example 2

[0027] A four-wheel drive device comprises a driving wheel 1 and a transmission device 3, wherein the driving wheels 1 are arranged on both sides of the transmission device 3, a connecting piece 2 is arranged at the top of the transmission device 3, a transmission port 4 is opened at the rear side of the transmission device 3, and parallel driven gears 9 are arranged inside the transmission port 4, and the driven gears 9 are respectively installed at the ends of two roller shafts 12, and bearing seats 6 are respectively installed on the outside of the two sides of the roller shaft 12, and a fixing seat 5 is arranged at the bottom of the bearing seat 6, and a first gear 13 is respectively installed at the other end of the roller shaft 12, and a pressing sheet 11 is arranged on the outside of the first gear 13, and a main rotating shaft 7 is respectively installed inside the driving wheel 1, and the ends of the main rotating shaft 7 are butt-jointed, and a double-ring bearing 16 is installed on the outside of the main rotating shaft 7 at the butt joint, and the double-ring bearing 16 is composed of two single-ring bearings 15 fitted together, and the two single-ring bearings 15 share the same outer ring, and second gears 14 are respectively installed on both sides of the main rotating shaft 7 and the double-ring bearing 16, and the second gear 14 is meshed with the first gear 13.

[0028] Preferably, the transmission device 3 is a rectangular parallelepiped, and the transmission device 3 is made of metal. Example 3

[0029] A four-wheel drive device comprises a driving wheel 1 and a transmission device 3, wherein the driving wheels 1 are arranged on both sides of the transmission device 3, a connecting piece 2 is arranged at the top of the transmission device 3, a transmission port 4 is opened at the rear side of the transmission device 3, and parallel driven gears 9 are arranged inside the transmission port 4, and the driven gears 9 are respectively installed at the ends of two roller shafts 12, and bearing seats 6 are respectively installed on the outside of the two sides of the roller shaft 12, and a fixing seat 5 is arranged at the bottom of the bearing seat 6, and a first gear 13 is respectively installed at the other end of the roller shaft 12, and a pressing sheet 11 is arranged on the outside of the first gear 13, and a main rotating shaft 7 is respectively installed inside the driving wheel 1, and the ends of the main rotating shaft 7 are butt-jointed, and a double-ring bearing 16 is installed on the outside of the main rotating shaft 7 at the butt joint, and the double-ring bearing 16 is composed of two single-ring bearings 15 fitted together, and the two single-ring bearings 15 share the same outer ring, and second gears 14 are respectively installed on both sides of the main rotating shaft 7 and the double-ring bearing 16, and the second gear 14 is meshed with the first gear 13.

[0030] Preferably, the connecting member 2 is a groove connecting member, a fixing screw 201 is provided at the bottom of the connecting member 2 and the bottom of the connecting member 2 is tightly fitted and fixed to the transmission device 3 by the fixing screw 201, and a screw hole is opened on the upper side of the connecting member 2. Example 4

[0031] A four-wheel drive device comprises a driving wheel 1 and a transmission device 3, wherein the driving wheels 1 are arranged on both sides of the transmission device 3, a connecting piece 2 is arranged at the top of the transmission device 3, a transmission port 4 is opened at the rear side of the transmission device 3, and parallel driven gears 9 are arranged inside the transmission port 4, and the driven gears 9 are respectively installed at the ends of two roller shafts 12, and bearing seats 6 are respectively installed on the outside of the two sides of the roller shaft 12, and a fixing seat 5 is arranged at the bottom of the bearing seat 6, and a first gear 13 is respectively installed at the other end of the roller shaft 12, and a pressing sheet 11 is arranged on the outside of the first gear 13, and a main rotating shaft 7 is respectively installed inside the driving wheel 1, and the ends of the main rotating shaft 7 are butt-jointed, and a double-ring bearing 16 is installed on the outside of the main rotating shaft 7 at the butt joint, and the double-ring bearing 16 is composed of two single-ring bearings 15 fitted together, and the two single-ring bearings 15 share the same outer ring, and second gears 14 are respectively installed on both sides of the main rotating shaft 7 and the double-ring bearing 16, and the second gear 14 is meshed with the first gear 13.

[0032] Preferably, bearings 10 are provided between the gears 9 , and the gears 9 are tightly welded and fixed to the inner ring and the outer ring of the bearing 10 , respectively. Example 5

[0033] A four-wheel drive device comprises a driving wheel 1 and a transmission device 3, wherein the driving wheels 1 are arranged on both sides of the transmission device 3, a connecting piece 2 is arranged at the top of the transmission device 3, a transmission port 4 is opened at the rear side of the transmission device 3, and parallel driven gears 9 are arranged inside the transmission port 4, and the driven gears 9 are respectively installed at the ends of two roller shafts 12, and bearing seats 6 are respectively installed on the outside of the two sides of the roller shaft 12, and a fixing seat 5 is arranged at the bottom of the bearing seat 6, and a first gear 13 is respectively installed at the other end of the roller shaft 12, and a pressing sheet 11 is arranged on the outside of the first gear 13, and a main rotating shaft 7 is respectively installed inside the driving wheel 1, and the ends of the main rotating shaft 7 are butt-jointed, and a double-ring bearing 16 is installed on the outside of the main rotating shaft 7 at the butt joint, and the double-ring bearing 16 is composed of two single-ring bearings 15 fitted together, and the two single-ring bearings 15 share the same outer ring, and second gears 14 are respectively installed on both sides of the main rotating shaft 7 and the double-ring bearing 16, and the second gear 14 is meshed with the first gear 13.

[0034] Preferably, the pressing plate 11 fixes the first gear 13 to the end of the roller shaft 12 by fixing screws. Example 6

[0035] A four-wheel drive device comprises a driving wheel 1 and a transmission device 3, wherein the driving wheels 1 are arranged on both sides of the transmission device 3, a connecting piece 2 is arranged at the top of the transmission device 3, a transmission port 4 is opened at the rear side of the transmission device 3, and parallel driven gears 9 are arranged inside the transmission port 4, and the driven gears 9 are respectively installed at the ends of two roller shafts 12, and bearing seats 6 are respectively installed on the outside of the two sides of the roller shaft 12, and a fixing seat 5 is arranged at the bottom of the bearing seat 6, and a first gear 13 is respectively installed at the other end of the roller shaft 12, and a pressing sheet 11 is arranged on the outside of the first gear 13, and a main rotating shaft 7 is respectively installed inside the driving wheel 1, and the ends of the main rotating shaft 7 are butt-jointed, and a double-ring bearing 16 is installed on the outside of the main rotating shaft 7 at the butt joint, and the double-ring bearing 16 is composed of two single-ring bearings 15 fitted together, and the two single-ring bearings 15 share the same outer ring, and second gears 14 are respectively installed on both sides of the main rotating shaft 7 and the double-ring bearing 16, and the second gear 14 is meshed with the first gear 13.

[0036] Preferably, the main shaft 7 is provided with a positioning buckle 8 inside the transmission device 3 , and the positioning buckle 8 is integrally provided with an arched claw outside, and the end of the arched claw is tightly welded and fixed inside the transmission device 3 . Example 7

[0037] A four-wheel drive device comprises a driving wheel 1 and a transmission device 3, wherein the driving wheels 1 are arranged on both sides of the transmission device 3, a connecting piece 2 is arranged at the top of the transmission device 3, a transmission port 4 is opened at the rear side of the transmission device 3, and parallel driven gears 9 are arranged inside the transmission port 4, and the driven gears 9 are respectively installed at the ends of two roller shafts 12, and bearing seats 6 are respectively installed on the outside of the two sides of the roller shaft 12, and a fixing seat 5 is arranged at the bottom of the bearing seat 6, and a first gear 13 is respectively installed at the other end of the roller shaft 12, and a pressing sheet 11 is arranged on the outside of the first gear 13, and a main rotating shaft 7 is respectively installed inside the driving wheel 1, and the ends of the main rotating shaft 7 are butt-jointed, and a double-ring bearing 16 is installed on the outside of the main rotating shaft 7 at the butt joint, and the double-ring bearing 16 is composed of two single-ring bearings 15 fitted together, and the two single-ring bearings 15 share the same outer ring, and second gears 14 are respectively installed on both sides of the main rotating shaft 7 and the double-ring bearing 16, and the second gear 14 is meshed with the first gear 13.

[0038] Preferably, a connecting disk 101 is integrally provided inside the driving wheel 1, and the connecting disk 101 is sleeved on the end of the main shaft 7, and the main shaft 7 passes through the connecting disk 101, and a fixing cap 102 is fixed to the outside of the connecting disk 101, and the connecting disk 101 is tightly fixed to the main shaft 7 through the fixing cap 102. Example 8

[0039] A four-wheel drive device comprises a driving wheel 1 and a transmission device 3, wherein the driving wheels 1 are arranged on both sides of the transmission device 3, a connecting piece 2 is arranged at the top of the transmission device 3, a transmission port 4 is opened at the rear side of the transmission device 3, and parallel driven gears 9 are arranged inside the transmission port 4, and the driven gears 9 are respectively installed at the ends of two roller shafts 12, and bearing seats 6 are respectively installed on the outside of the two sides of the roller shaft 12, and a fixing seat 5 is arranged at the bottom of the bearing seat 6, and a first gear 13 is respectively installed at the other end of the roller shaft 12, and a pressing sheet 11 is arranged on the outside of the first gear 13, and a main rotating shaft 7 is respectively installed inside the driving wheel 1, and the ends of the main rotating shaft 7 are butt-jointed, and a double-ring bearing 16 is installed on the outside of the main rotating shaft 7 at the butt joint, and the double-ring bearing 16 is composed of two single-ring bearings 15 fitted together, and the two single-ring bearings 15 share the same outer ring, and second gears 14 are respectively installed on both sides of the main rotating shaft 7 and the double-ring bearing 16, and the second gear 14 is meshed with the first gear 13.

[0040] Preferably, a second gear 14 is mounted on the outside of the main shaft 7, a first gear 13 is provided on one side of the second gear 14, the second gear 14 is meshed with the first gear 13, the first gear 13 is mounted on both ends of the roller shaft 12, and at least two bearings 10 are mounted on the outside of the roller shaft 12, and the bearings 10 are fixedly connected to the transmission device 3 through the bearing seat 6.

[0041] When in use, first connect the drive motor to the driven gear 9 through a belt or an iron chain, then turn on the drive motor, the rotation of the driven gear 9 drives the first gear 13 and the second gear 14 meshing with the first gear 13 through the roller shaft 12, and the rotation of the second gear 14 drives the rotation of the main shaft 7. Since the main shafts 7 share a double-ring bearing 16 composed of a single-ring bearing 15, the rotation of the drive wheel 1 will not interfere with the rotation of the pair of drive wheels 1, thereby realizing the four-wheel drive in which the drive wheels share power and do not affect each other. 1. The four-wheel drive device adopts the method of breaking the roller shaft 12 and the main shaft 7 and fixing the roller shaft 12 and the main shaft 7 off the running track through specific components, which solves the problem that the trolley cannot achieve forward and backward movement through the steering of a single drive wheel in bad road conditions, so that each drive wheel 1 of the trolley is an independent drive device, which can achieve simultaneous driving while providing more operating space for a single drive wheel. In the four-wheel drive device, the main shaft 7 is provided with a positioning buckle 8 inside the transmission device 3, and the positioning buckle 8 is integrally provided with an arched claw outside, which solves the problem that the single driving wheel 1 affects the driving wheels in the forward process of the four-wheel drive device, so that each driving wheel of the four-wheel drive device can perform a single operation without interfering with the normal operation of the driving wheels in the group. In the four-wheel drive device, the top of the connecting member 2 is provided with a screw hole, which can further strengthen the driving device 3 and the vehicle body during the installation process, solves the problem that the driving device 3 and the vehicle body are not installed firmly, resulting in gear meshing deviation and belt misalignment, thereby improving the firmness of the four-wheel drive device and providing stable conditions for the operation of the gears and belts inside the device. In the four-wheel drive device, the main bearings 7 are connected by inner double ring shafts 16, which solves the problem that traditional bearings cannot realize the single operation of the driving wheels in the group, so that the driving wheels in the group do not interfere with each other during operation, and can provide a certain stability to the driving wheels in the group, and prevent the main shaft from causing parts misalignment due to broken sections. The four-wheel drive device indirectly transmits power to the main shaft 7 by meshing the first gear 13 and the second gear 14, which solves the problem that the rotation speed of the driving wheel 1 is limited and affected by the driving motor when the driving motor is directly driven. The power of the driving motor is transmitted to the main shaft 7 after the gears are meshed firmly, thereby ensuring the drive.

[0042] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A four-wheel drive device, comprising a driving wheel (1) and a transmission device (3), characterized in that: The transmission device (3) is provided with driving wheels (1) on both sides, a connecting piece (2) is provided at the top of the transmission device (3), a transmission port (4) is provided at the rear side of the transmission device (3), and parallel driven gears (9) are provided inside the transmission port (4), and the driven gears (9) are respectively installed at the ends of two roller shafts (12), and the roller shafts (12) are respectively provided with bearing seats (6) on the outside of both sides, and a fixing seat (5) is provided at the bottom of the bearing seat (6), and the other end of the roller shaft (12) is respectively provided with a first gear (13), and the first gear (13) is provided at the bottom of the bearing seat (6). A pressing sheet (11) is provided on the outer side of a gear (13), and a main shaft (7) is installed inside the driving wheel (1), the ends of the main shaft (7) are butt-jointed, and a double-ring bearing (16) is sleeved on the outer side of the butt joint of the main shaft (7), and the double-ring bearing (16) is composed of two single-ring bearings (15) fitted together, and the two single-ring bearings (15) share the same outer ring, and second gears (14) are respectively sleeved on both sides of the main shaft (7) and the double-ring bearing (16), and the second gear (14) is meshed with the first gear (13); A bearing (10) is provided between the driven gears (9), and the driven gears (9) are tightly welded and fixed to the inner ring and the outer ring of the bearing (10) respectively; The pressing plate (11) is used to fix the first gear (13) on the end of the roller shaft (12) by means of fixing screws.

2. A four-wheel drive device as claimed in claim 1, characterized in that: The transmission device (3) is a rectangular parallelepiped and is made of metal.

3. A four-wheel drive device as claimed in claim 1, characterized in that: The connecting piece (2) is a groove connecting piece, a fixing screw (201) is provided at the bottom of the connecting piece (2), and the bottom of the connecting piece (2) is tightly fitted and fixed to the transmission device (3) through the fixing screw (201), and a screw hole is opened on the upper side of the connecting piece (2).

4. A four-wheel drive device as claimed in claim 1, characterized in that: The main rotating shaft (7) is sleeved with a positioning buckle (8) inside the transmission device (3), and the positioning buckle (8) is integrally provided with an arched claw outside, and the end of the arched claw is tightly welded and fixed inside the transmission device (3).

5. A four-wheel drive device as claimed in claim 1, characterized in that: A connecting disk (101) is integrally provided inside the driving wheel (1), the connecting disk (101) is sleeved on the end of the main rotating shaft (7), and the main rotating shaft (7) passes through the connecting disk (101), a fixing cap (102) is fixedly attached to the outside of the connecting disk (101), and the connecting disk (101) is tightly fixed to the main rotating shaft (7) via the fixing cap (102).

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