Driving wheel and carrying tool

Abstract

The utility model discloses a driving wheel and a carrying tool, and belongs to the technical field of vehicles. Wherein the driving wheel comprises a shell, the shell comprises a fixed shell and a transmission shell rotationally connected with the fixed shell, the wheel body is fixedly arranged on the transmission shell in a sleeving manner, and the driving device is arranged in the shell and is in driving connection with the transmission shell. The wheel body and the transmission shell are integrally arranged, and the driving device directly drives the transmission shell to rotate so as to drive the wheel body to rotate, so that the structure of the driving wheel is simpler.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicles, in particular to a driving wheel and a vehicle. Background Art

[0002] The drive wheel, motor and oil pump of existing forklifts are integrated into the same housing. However, the outer wheel of the drive wheel is still set separately, and the power switching between the motor and the oil pump is complicated, making the overall structure of the drive wheel still relatively complex and large in size. Utility Model Content

[0003] The purpose of the utility model is to provide a driving wheel with a simple structure and a compact size.

[0004] To achieve the above technical objectives, in a first aspect, an embodiment of the present utility model provides a driving wheel, comprising:

[0005] A housing, comprising a fixed housing and a transmission housing rotatably connected thereto;

[0006] The wheel body is fixedly sleeved on the transmission housing;

[0007] The driving device is built into the housing and is drivingly connected to the transmission housing.

[0008] In some embodiments, the driving device includes a stator-rotor assembly, wherein the stator in the stator-rotor assembly is fixedly connected to the inner wall of the fixed housing, and the rotor in the stator-rotor assembly is connected to the clutch assembly;

[0009] The transmission housing is connected to the transmission shaft;

[0010] The clutch assembly is clutch-connected to the transmission shaft to achieve connection or disconnection with the transmission shaft.

[0011] In some embodiments, the driving wheel further includes a gear reducer, which includes a primary planetary gear assembly and a secondary planetary gear assembly transmission-connected thereto, and the secondary planetary gear assembly transmission-connected to the transmission housing to achieve two-stage reduction.

[0012] In some embodiments, the driving wheel further includes an oil pump assembly, and the driving device is driven to connect to the oil pump assembly via a clutch assembly to achieve clutch connection between the driving device and the oil pump assembly.

[0013] In some embodiments, the clutch assembly includes a movable connecting member, and when the movable connecting member is located at the left dead center, the left end of the movable connecting member is spline-connected to the oil pump sleeve; when the movable connecting member is located at the right dead center, the right end of the movable connecting member is spline-connected to the drive shaft.

[0014] In some embodiments, the left end of the movable connecting member is a spline sleeve structure, and the outer periphery of the oil pump shaft sleeve is provided with splines to cooperate with the spline sleeve structure at the left end of the movable connecting member; the right end of the movable connecting member is a spline sleeve structure, and the left end of the transmission shaft is fixedly connected to the spline shaft to cooperate with the spline sleeve structure at the right end of the movable connecting member;

[0015] An elastic member is provided in the cavity of the spline sleeve structure, one end of the elastic member is fixedly connected to the inner wall of the cavity of the spline sleeve structure, and the other end of the elastic member is fixedly connected to the spline shaft. Under the elastic force of the elastic member, the spline sleeve structure at the right end of the movable connecting member is connected to the spline shaft.

[0016] In some embodiments, an attraction component is also included, which is an annular structure and is sleeved on the outer periphery of the left end of the oil pump sleeve; after the attraction component is energized, it can magnetically absorb the movable connecting member, so that the spline sleeve structure at the left end of the movable connecting member is connected to the spline on the outer periphery of the oil pump sleeve.

[0017] In some embodiments, the drive wheel also includes a magnetic brake assembly; the magnetic brake assembly includes a mounting plate and a magnetic brake base plate that are spaced apart and sleeved on the periphery of the drive shaft, a magnetic brake pressure plate is arranged between the mounting plate and the magnetic brake base plate, a brake pad is arranged between the magnetic brake pressure plate and the magnetic brake base plate, and a magnetic brake spring and a magnetic brake coil are arranged on the mounting plate; the magnetic brake spring presses the magnetic brake pressure plate, so that the magnetic brake pressure plate presses the brake pad, and the brake pad presses the magnetic brake base plate, so that the magnetic brake base plate brakes the brake pad, the magnetic brake spline sleeve and the drive shaft; when the magnetic brake coil is energized, the magnetic brake coil magnetically attracts the magnetic brake pressure plate, so that the magnetic brake pressure plate releases the brake pad, and then the brake pad releases the magnetic brake base plate.

[0018] In some embodiments, the driving wheel also includes a cylinder bracket fixedly mounted on a fixed housing, with a clearance between the bracket and the transmission housing for accommodating the wheel body; a cylinder is mounted on the cylinder bracket, and the oil pump assembly is hydraulically driven to connect the cylinder.

[0019] In a second aspect, an embodiment of the present invention further provides a vehicle comprising the aforementioned drive wheel.

[0020] Compared with the prior art, the beneficial effects of the present invention are:

[0021] In one embodiment of the present invention, the drive wheel includes a housing, which includes a fixed housing and a transmission housing rotatably connected thereto. The wheel body is fixedly mounted on the transmission housing, and the drive device is internally mounted in the housing and rotatably connected to the transmission housing. The wheel body and transmission housing are integrally configured, and the drive device directly drives the transmission housing to rotate, thereby driving the wheel body to rotate, thereby simplifying the structure of the drive wheel. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the planar structure of the driving wheel in the embodiment of the present utility model;

[0023] Figure 2 This is a schematic cross-sectional view of the driving wheel in an embodiment of the present utility model;

[0024] Figure 3 This is a schematic diagram of the three-dimensional structure of the first-stage planetary gear assembly in an embodiment of the present utility model from a first angle;

[0025] Figure 4 This is a schematic diagram of the three-dimensional structure of the first-stage planetary gear assembly in the embodiment of the present utility model from a second angle;

[0026] Figure 5 This is a schematic planar structural diagram of a two-stage planetary gear assembly in an embodiment of the present utility model;

[0027] Figure 6 This is a schematic cross-sectional view of the magnetic brake assembly in an embodiment of the present utility model;

[0028] In the figure: fixed housing 11, transmission housing 12, first-stage planetary gear assembly 21, first planetary gear 211, first-stage planet carrier 212, second sun gear 223, second-stage planetary gear assembly 22, second planetary gear 221, inner gear ring 23, stator and rotor assembly 3, transmission shaft 31, elastic member 331, spline shaft 32, movable connecting member 33, suction assembly 34, magnetic brake assembly 35, oil pump assembly 4, oil pump sleeve 41, cylinder bracket 5, cylinder 6, wheel body 7, mounting plate 3501, magnetic brake spring 3503, magnetic brake coil 3504, magnetic brake pressure plate 3506, brake pad 3507, magnetic brake spline sleeve 3508, magnetic brake base plate 3509, bolt 3510, magnetic brake positioning sleeve 3511. DETAILED DESCRIPTION

[0029] 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 embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0030] like Figure 1-6 As shown, on the one hand, a driving wheel in an embodiment of the present invention includes a housing, which includes a fixed housing 11 and a transmission housing 12 rotatably connected thereto. The wheel body 7 is fixedly sleeved on the transmission housing 12, and the driving device is built into the housing and drivingly connected to the transmission housing 12. The wheel body 7 and the transmission housing 12 are integrally arranged. The driving device directly drives the transmission housing 12 to rotate, thereby driving the wheel body 7 to rotate, making the structure of the driving wheel simpler.

[0031] Specifically, the drive device includes a stator-rotor assembly 3, the stator in the stator-rotor assembly 3 is fixedly connected to the inner wall of the fixed housing 11, and the rotor in the stator-rotor assembly 3 is connected to the clutch assembly; the transmission housing 12 is connected to the transmission shaft 31; the clutch assembly is clutched and connected to the transmission shaft 31 to achieve connection or disconnection with the transmission shaft 31.

[0032] Specifically, the driving wheel also includes a gear reducer, which includes a first-stage planetary gear assembly 21 and a second-stage planetary gear assembly 22 transmission-connected thereto, and the second-stage planetary gear assembly 22 transmission-connected to the transmission housing 12 to achieve two-stage reduction.

[0033] More specifically, if Figure 3-5 As shown, the transmission shaft 31 is keyed to the first sun gear (not shown) of the first-stage planetary gear assembly 21. The first sun gear meshes with the first planetary gears 211 of the first-stage planetary gear assembly 21. The first planetary gears 211 mesh with the inner ring gear 23, which is fixedly connected to the stator of the stator-rotor assembly 3. This in turn drives the first-stage planetary carrier 212 and the second sun gear 223 fixedly connected to the first-stage planetary carrier 212. The second sun gear 223 meshes with the second planetary gears 221 of the second-stage planetary gear assembly 22. The second planetary gears 221 mesh with the inner ring gear 23, and the gear shaft of the second planetary gear 221 is fixedly connected to the transmission housing 12. In this way, the transmission shaft 31 is driven by the first and second planetary gear assemblies 21, 22, and then connected to the transmission housing 12. In other embodiments, the inner ring gear 23 can be split into a first inner ring gear meshing with the first planetary gears 211 and a second inner ring gear meshing with the second planetary gears 221.

[0034] Specifically, the driving wheel further includes an oil pump assembly 4 , and the driving device is driven to connect to the oil pump assembly 4 via a clutch assembly to achieve clutch connection between the driving device and the oil pump assembly 4 .

[0035] More specifically, the oil pump assembly 4 includes an oil pump and an oil pump shaft, and an oil pump shaft sleeve 41 is sleeved on the oil pump shaft.

[0036] Specifically, the clutch assembly includes a movable connecting member 33. When the movable connecting member 33 is located at the left dead center, the left end of the movable connecting member 33 is spline-connected to the oil pump sleeve 41; when the movable connecting member 33 is located at the right dead center, the right end of the movable connecting member 33 is spline-connected to the transmission shaft 31.

[0037] Specifically, the left end of the movable connecting member 33 is a splined sleeve structure, and a spline is provided on the outer periphery of the oil pump shaft sleeve 41 to cooperate with the splined sleeve structure at the left end of the movable connecting member 33. The right end of the movable connecting member 33 is a splined sleeve structure, and the left end of the transmission shaft 31 is fixedly connected to the splined shaft 32 to cooperate with the splined sleeve structure at the right end of the movable connecting member 33. An elastic member 331 is provided in the cavity of the splined sleeve structure. One end of the elastic member 331 is fixedly connected to the inner wall of the cavity of the splined sleeve structure, and the other end of the elastic member 331 is fixedly connected to the splined shaft 32. Under the elastic force of the elastic member 331, the splined sleeve structure at the right end of the movable connecting member 33 is connected to the splined shaft 32. The elastic member 331 is preferably a spring.

[0038] Preferably, the spline shaft 32 includes an open cavity, in which a thrust ball bearing is fixedly arranged, one end of the elastic member 331 is rotatably connected to the slot on the inner wall of the cavity of the spline sleeve structure, and the other end of the elastic member 331 is connected to the end face of the thrust ball bearing; so that when the movable connecting member 33 and the spline shaft 32 rotate synchronously after engagement, the elastic member 331 can rotate asynchronously or remain prohibited, thereby realizing the "dynamic and static separation" of the elastic member 331 and the spline shaft 32.

[0039] Specifically, it also includes an attraction component 34, which is an annular structure and is sleeved on the outer periphery of the left end of the oil pump sleeve 41; after the attraction component 34 is energized, it can magnetically absorb the movable connecting part 33, so that the spline sleeve structure at the left end of the movable connecting part 33 is connected to the spline on the outer periphery of the oil pump sleeve 41.

[0040] Specifically, if Figure 6As shown, the drive wheel also includes a magnetic brake assembly 35 to brake the drive device. The magnetic brake assembly 35 includes a mounting plate 3501 and a magnetic brake base plate 3509, which are spaced apart and sleeved on the periphery of the transmission shaft 31. A magnetic brake pressure plate 3506 is provided between the mounting plate 3501 and the magnetic brake base plate 3509. A brake pad 3507 is provided between the magnetic brake pressure plate 3506 and the magnetic brake base plate 3509. A magnetic brake spring 3503 and a magnetic brake coil 3504 are provided on the mounting plate 3501. The magnetic brake spring 3503 presses the magnetic brake pressure plate 3506, so that The magnetic brake pressure plate 3506 presses the brake pad 3507, and the brake pad 3507 presses the magnetic brake base plate 3509, so that the magnetic brake base plate 3509 brakes the brake pad 3507, the magnetic brake spline sleeve 3508 and the transmission shaft 31; when the magnetic brake coil 3504 is energized, the magnetic brake coil 3504 magnetically attracts the magnetic brake pressure plate 3506, so that the magnetic brake pressure plate 3506 releases the brake pad 3507, and then the brake pad 3507 releases the magnetic brake base plate 3509.

[0041] More specifically, a magnetic brake spline sleeve 3508 is sleeved on the transmission shaft 31, and a brake pad 3507 acts on the spline sleeve 3508 to brake the spline sleeve 3508 and the transmission shaft 31. The mounting plate 3501 and the magnetic brake base plate 3509 are fixedly connected to each other by bolts 3510. A magnetic brake locating sleeve 3511 is provided between the mounting plate 3501 and the magnetic brake base plate 3509 to limit the distance between them. The middle portion of the bolt 3510 passes through the magnetic brake locating sleeve 3511.

[0042] Specifically, the drive wheel also includes a cylinder bracket 5 fixedly mounted on a fixed housing 11. A clearance is defined between the bracket 5 and the transmission housing 12 to accommodate the wheel body 7. A cylinder 6 is mounted on the cylinder bracket 5, and the oil pump assembly 4 is hydraulically connected to the cylinder 6. The wheel body 7 is positioned within the clearance, making the overall structure of the drive wheel compact.

[0043] More specifically, the fixed housing 11 includes an oil pump housing and an annular body support. The oil cylinder support 5 is cantilevered on the body support, with the oil pump housing sealed and connected to one end of the body support, and the transmission housing 12 sealed and rotatably connected to the other end of the body support.

[0044] On the other hand, an embodiment of the present invention further provides a vehicle comprising the aforementioned driving wheel.

[0045] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations that come within the meaning and range of equivalents of the claims be embraced within the present invention.

Claims

1. A driving wheel, characterized in that: include: A housing, the housing comprising a fixed housing and a transmission housing rotatably connected thereto; The wheel body is fixedly sleeved on the transmission housing; The driving device is built in the housing and drivingly connected to the transmission housing.

2. The driving wheel according to claim 1, characterized in that: The driving device comprises a stator-rotor assembly, wherein the stator in the stator-rotor assembly is fixedly connected to the inner wall of the fixed housing, and the rotor in the stator-rotor assembly is connected to the clutch assembly; The transmission housing is connected to the transmission shaft; The clutch assembly is clutch-connected with the transmission shaft to achieve connection or disconnection with the transmission shaft.

3. The driving wheel according to claim 2, characterized in that: It also includes a gear reducer, which includes a primary planetary gear assembly and a secondary planetary gear assembly drivingly connected thereto, and the secondary planetary gear assembly drivingly connected to the transmission housing to achieve two-stage reduction.

4. The driving wheel according to claim 2, characterized in that: It also includes an oil pump assembly, and the driving device is driven and connected to the oil pump assembly through a clutch assembly to achieve clutch connection between the driving device and the oil pump assembly.

5. The driving wheel according to claim 4, characterized in that: The clutch assembly includes a movable connecting member. When the movable connecting member is located at the left dead center, the left end of the movable connecting member is spline-connected to the oil pump sleeve; when the movable connecting member is located at the right dead center, the right end of the movable connecting member is spline-connected to the transmission shaft.

6. The driving wheel according to claim 5, characterized in that: The left end of the movable connecting member is a spline sleeve structure, and a spline is arranged on the outer periphery of the oil pump shaft sleeve to cooperate and connect with the spline sleeve structure at the left end of the movable connecting member; the right end of the movable connecting member is a spline sleeve structure, and the left end of the transmission shaft is fixedly connected to the spline shaft to cooperate and connect with the spline sleeve structure at the right end of the movable connecting member; An elastic member is provided in the cavity of the spline sleeve structure, one end of the elastic member is fixedly connected to the inner wall of the cavity of the spline sleeve structure, and the other end of the elastic member is fixedly connected to the spline shaft. Under the elastic force of the elastic member, the spline sleeve structure at the right end of the movable connecting member is connected to the spline shaft.

7. The driving wheel according to claim 6, characterized in that: It also includes an attraction component, which is an annular structure and is sleeved on the outer periphery of the left end of the oil pump sleeve. After the attraction component is energized, it can magnetically absorb the movable connecting member, so that the spline sleeve structure at the left end of the movable connecting member is connected to the spline on the outer periphery of the oil pump sleeve.

8. The driving wheel according to claim 2, characterized in that: It also includes a magnetic brake assembly; the magnetic brake assembly includes a mounting plate and a magnetic brake base plate which are arranged at intervals and sleeved on the periphery of the transmission shaft, a magnetic brake pressure plate is arranged between the mounting plate and the magnetic brake base plate, a brake pad is arranged between the magnetic brake pressure plate and the magnetic brake base plate, and a magnetic brake spring and a magnetic brake coil are arranged on the mounting plate; the magnetic brake spring presses the magnetic brake pressure plate, so that the magnetic brake pressure plate presses the brake pad, and the brake pad presses the magnetic brake base plate, so that the magnetic brake base plate brakes the brake pad, the magnetic brake spline sleeve and the transmission shaft; when the magnetic brake coil is energized, the magnetic brake coil magnetically attracts the magnetic brake pressure plate, so that the magnetic brake pressure plate releases the brake pad, and then the brake pad releases the magnetic brake base plate.

9. The driving wheel according to claim 4, characterized in that: It also includes a cylinder bracket fixedly arranged on the fixed housing, and an accommodating gap for accommodating the wheel body is provided between the bracket and the transmission housing; a cylinder is arranged on the cylinder bracket, and the oil pump assembly is hydraulically driven to connect the cylinder.

10. A vehicle, characterized in that: The invention comprises the driving wheel according to any one of claims 1 to 9.

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