Vertical heavy-load driving wheel assembly

Abstract

The utility model discloses a vertical heavy-load driving wheel assembly which is characterized by comprising a reduction gearbox, the reduction gearbox comprises a box body, a box cover, a side cover, two sets of gears and an output shaft, and the box cover and the side cover are fixedly connected with the box body; the two sets of gears comprise a straight gear set which is arranged in parallel and a bevel gear set which is vertically distributed, the bevel gear set comprises a large bevel gear and a bevel gear shaft, the bevel gear shaft is fixedly connected with a driven gear in the straight gear set, a bevel gear shaft bearing is connected with the box body, and the large bevel gear is meshed with the bevel gear shaft; the output shaft is fixedly connected with the large bevel gear, the output shaft is fixedly connected with an inner ring of a first bearing, and an outer ring of the first bearing is fixedly connected with the box cover and the box body. The utility model relates to the technical field of driving wheels, in particular to a vertical heavy-load driving wheel assembly. The technical problem to be solved by the utility model is to provide a vertical heavy-load driving wheel assembly which is beneficial to heavy-load driving.

Description

TECHNICAL FIELD

[0001] The utility model relates to drive wheel technical field, specifically, relates to a vertical heavy load drive wheel assembly. BACKGROUND

[0002] The heavy load drive wheel assembly is the core component of the electric industrial vehicle, and integrates the walking motor, the steering motor, the reduction gearbox, the drive wheel, the brake and the rotary gear, and determines the good or bad of the vehicle power and operation performance.

[0003] At present, the market development direction tends to the heavy load drive wheel assembly, and therefore a heavy load large wheel diameter drive wheel assembly is designed according to the market demand; the heavy load drive wheel mainly has the reduction gearbox, is simple and reliable in structure, and is convenient to maintain. UTILITY MODEL CONTENTS

[0004] The utility model solves the technical problem to provide a vertical heavy load drive wheel assembly, and is favorable to heavy load driving.

[0005] The utility model adopts the following technical scheme to realize the invention purpose:

[0006] A vertical heavy load drive wheel assembly, characterized by comprising: a reduction gearbox, the reduction gearbox comprising a box body, a box cover, a side cover, two groups of gears and an output shaft, the box cover and the side cover being fixedly connected with the box body respectively; the two groups of gears comprising a group of parallelly arranged spur gear sets and a group of perpendicularly distributed bevel gear sets, the bevel gear set comprising a large bevel gear and a bevel gear shaft, the bevel gear shaft being fixedly connected with driven gears in the spur gear set, the bevel gear shaft being bearing-connected with the box body, and the large bevel gear being engaged with the bevel gear shaft; the output shaft being fixedly connected with the large bevel gear, the output shaft being fixedly connected with the inner ring of bearing one, the outer ring of bearing one being fixedly connected with the box cover box body, and the shaft head of the output shaft being fixedly connected with a wheel.

[0007] As a further limitation of the technical solution, the driving gear in the spur gear set is fixedly connected with the output shaft of the walking motor, the walking motor is fixedly connected with a mounting plate, and the output shaft of the walking motor passes through the mounting plate and the box cover.

[0008] As a further limitation of the technical solution, the brake is installed on the walking motor to realize the brake of the drive assembly.

[0009] As a further limitation of the technical solution, the box cover is fixedly connected with a steering gear disc, the steering gear disc is fixedly connected with an inner ring of a slewing bearing, and the slewing bearing is connected with the mounting plate through bolts.

[0010] As a further limitation of the technical solution, the mounting plate is provided with an encoder.

[0011] As a further limitation of the technical solution, the output shaft is arranged in parallel with the large bevel gear in the box through the spline, and the large bevel gear is locked with the output shaft through a nut.

[0012] As a further limitation of the technical solution, the output shaft is fixedly connected with an inner ring of a bearing two, and an outer ring of the bearing two is fixedly connected with the side cover.

[0013] Compared with the related art, the vertical heavy load driving wheel assembly has the following advantages

[0014] Advantages:

[0015] (1) The device has simple and reliable structure, low failure rate, and is convenient to maintain; the reduction gearbox is provided with two groups of different types of gear combination, and the internal structure is compact, so that the reduction gearbox has small size, and the maximum size of the slewing radius is located at the outer edge of the gear disc and the reduction gearbox, so that the size and the slewing radius are not too large due to the heavy load driving wheel.

[0016] (2) The output shaft of the device is lengthened, and the mounting mode is split type; one side of the shaft head is mounted on the side cover of the reduction gearbox through the shaft head, so that the force arm is lengthened; this design not only ensures that a larger force is borne to realize heavy load, but also makes the size of the reduction gearbox smaller than that of the existing heavy load driving wheel in the market.

[0017] (3) The mounting plate of the device has simple layout, and has no too many electrical elements and simple and neat lines; the electrical elements, such as the walking motor and the steering motor, mounted on the mounting plate do not rotate with the wheel, so that the motor power line and the signal line are not damaged due to movement. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 The figure is a structural schematic view of the utility model.

[0019] In the figure: 1, brake, 2, walking motor, 3, steering motor, 4, steering reducer, 5, straight gear set, 6, bevel gear shaft, 7, large bevel gear, 8, output shaft, 9, bearing one, 10, wheel, 11, bearing two, 12, steering gear, 13, slewing bearing, 14, slewing pinion, 15, mounting plate, 16, box cover, 17, box, 18, side cover. DETAILED DESCRIPTION

[0020] The utility model will be further described below in connection with the drawings and embodiments.

[0021] Embodiment one: a vertical heavy load driving wheel assembly, comprising: a reduction gearbox, the reduction gearbox comprises a box body 17, a box cover 16, a side cover 18, two sets of gears and an output shaft 8, the box cover 16 and the side cover 18 are fixedly connected with the box body 17 respectively; two sets of gears include a set of parallelly arranged straight gear set 5 and a set of vertically distributed bevel gear set, the bevel gear set includes large bevel gear 7 and bevel gear shaft 6, the bevel gear shaft 6 is fixedly connected with the driven gear in the straight gear set 5, the bevel gear shaft 6 is bearing connected with the box body 17, the large bevel gear 7 is engaged with the bevel gear shaft 6; the output shaft 8 is fixedly connected with the large bevel gear 7, the output shaft 8 is fixedly connected with the inner ring of bearing one 9, the outer ring of the bearing one 9 is fixedly connected with the box cover 17, and the shaft head of the output shaft 8 is fixedly connected with the wheel 10. The device is simple in structure, reliable, low in failure rate and convenient to maintain; the reduction gearbox part adopts two sets of different types of gear combination form, the internal structure is compact, so that the reduction gearbox is small in size.

[0022] The driving gear in the straight gear set 5 is fixedly connected with the output shaft of the walking motor 2, the walking motor 2 is fixedly connected with the mounting plate 15, and the output shaft of the walking motor 2 penetrates the mounting plate 15 and the box cover 16.

[0023] The brake 1 is installed on the walking motor 2 to realize the stop brake of the driving assembly.

[0024] The output shaft 8 is arranged in parallel in the box body 17 through the spline of the large bevel gear 7, and the large bevel gear 7 is locked with the output shaft 8 through a nut.

[0025] The output shaft 8 is fixedly connected with the inner ring of bearing two 11, and the outer ring of the bearing two 11 is fixedly connected with the side cover 18. The output shaft 8 of the device is lengthened, and the mounting mode is split type, one side shaft head is mounted on the side cover 18 of the reduction gearbox through the shaft head to lengthen the force arm. This design not only ensures that a greater force is borne to realize heavy load, but also makes the reduction gearbox smaller in size than the existing heavy load driving wheel in the market under the condition of realizing heavy load.

[0026] The working principle of the vertical heavy load driving wheel assembly is as follows:

[0027] When the walking motor 2 rotates, the output shaft of the walking motor 2 drives the driving gear in the spur gear set 5 to rotate, the driving gear meshes with the driven gear, so that the driven gear drives the bevel gear shaft 6 to rotate, the bevel gear shaft 6 drives the large bevel gear 7 to rotate, and the large bevel gear 7 drives the output shaft 8 to rotate, thereby driving the wheel 10 to rotate and realizing the driving wheel walking function.

[0028] The brake 1 is installed on the walking motor 2 to realize the stopping and braking of the driving assembly.

[0029] In the embodiment, the box cover 16 is fixedly connected with the steering gear disc 12, the inner ring of the slewing bearing 13 is fixedly connected with the steering gear disc 12 by bolts, the outer ring of the slewing bearing 13 is fixedly connected with the mounting plate 15 by bolts, the mounting plate 15 is fixedly connected with the steering reducer 4, the output shaft of the steering motor 3 is fixedly connected with the input shaft of the steering reducer 4, the output shaft of the steering reducer 4 penetrates through the mounting plate 15, the output shaft of the steering reducer 4 is fixedly connected with the slewing pinion 14, and the slewing pinion 14 meshes with the steering gear disc 12.

[0030] The mounting plate 15 is provided with an encoder.

[0031] The mounting plate 15 of the device is simple in layout and does not have too many electrical elements, and the circuit is simple and neat; the mounting plate is fixed, so that the electrical elements, i.e., the walking motor 2 and the steering motor 3, mounted thereon do not rotate with the wheel 10, thereby avoiding damage of motor power lines and signal lines due to movement.

[0032] The working principle of the vertical heavy-duty driving wheel assembly is as follows:

[0033] When steering, the mounting plate 15 is fixed, the steering motor 3 rotates, drives the steering reducer 4 to move, the output shaft of the steering reducer 4 drives the slewing pinion 14 to rotate, the slewing pinion 14 drives the steering gear disc 12 to rotate, the steering gear disc 12 drives the reducer to rotate, and thus the driving assembly is steered.

[0034] The above is only an embodiment of the utility model, and does not limit the patent range of the utility model, and any equivalent structure or equivalent process conversion or direct or indirect application in other related technical fields by using the contents of the utility model specification and drawings is also included in the patent protection range of the utility model.

Claims

1. A vertical heavy duty drive wheel assembly characterized by, The application relates to a reduction gearbox. The gearbox comprises a gearbox body (17), a gearbox cover (16), a side cover (18), two groups of gears and an output shaft (8), the gearbox cover (16) and the side cover (18) are fixedly connected with the gearbox body (17) respectively. The two groups of gears comprise a group of parallel arranged spur gear sets (5) and a group of vertically distributed bevel gear sets, the bevel gear set comprises a large bevel gear (7) and a bevel gear shaft (6), the bevel gear shaft (6) is fixedly connected with driven gears in the spur gear set (5), the bevel gear shaft (6) is bearing connected with the gearbox body (17), the large bevel gear (7) is engaged with the bevel gear shaft (6). The output shaft (8) is fixedly connected with the large bevel gear (7), the inner ring of bearing one (9) is fixedly connected with the output shaft (8), the outer ring of the bearing one (9) is fixedly connected with the gearbox cover (17), the shaft head of the output shaft (8) is fixedly connected with wheels (10).

2. The vertical heavy duty drive wheel assembly of claim 1, wherein: The driving gears in the spur gear set (5) are fixedly connected with the output shaft of a walking motor (2), the walking motor (2) is fixedly connected with a mounting plate (15), the output shaft of the walking motor (2) penetrates through the mounting plate (15) and the gearbox cover (16).

3. The vertical heavy duty drive wheel assembly of claim 2, wherein: A brake (1) is mounted on the walking motor (2).

4. The vertical heavy duty drive wheel assembly of claim 2, wherein: The gearbox cover (16) is fixedly connected with a steering gear disc (12), the inner ring of a slewing bearing (13) is fixedly connected with the steering gear disc (12), the outer ring of the slewing bearing (13) is fixedly connected with the mounting plate (15), the mounting plate (15) is fixedly connected with a steering reduction machine (4), the steering reduction machine (4) is fixedly connected with a steering motor (3), the output shaft of the steering motor (3) is fixedly connected with the input shaft of the steering reduction machine (4), the output shaft of the steering reduction machine (4) penetrates through the mounting plate (15), the output shaft of the steering reduction machine (4) is fixedly connected with a slewing pinion (14), the slewing pinion (14) is engaged with the steering gear disc (12).

5. The vertical heavy duty drive wheel assembly of claim 4, wherein: An encoder is mounted on the mounting plate (15).

6. The vertical heavy duty drive wheel assembly of claim 1, wherein: The output shaft (8) is arranged in parallel in the gearbox body (17) through the spline of the large bevel gear (7), the large bevel gear (7) and the output shaft (8) are locked through a nut.

7. The vertical heavy duty drive wheel assembly of claim 1, wherein: The inner ring of bearing two (11) is fixedly connected with the output shaft (8), the outer ring of the bearing two (11) is fixedly connected with the side cover (18).

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