Wheel-side speed reducer convenient for electric aerial work platform

Abstract

The utility model relates to the technical field of wheel-side speed reducers for high-altitude operation, in particular to a wheel-side speed reducer convenient for an electric high-altitude operation platform, which comprises a speed reducer body, a first-stage sun gear, a first-stage planet group, a second-stage planet group, a second-stage sun gear, a second-stage planet group, a third-stage planet group, a fourth-stage planet group, a fourth-stage planet group and a fourth-stage planet group, the motor is input through the first-stage sun gear, first-stage speed reduction is carried out through the first-stage planet set, second-stage speed reduction is carried out through the splines, then second-stage speed reduction is carried out through transmission to the second-stage planet set, third-stage speed reduction is carried out through transmission to the third-stage planet set, third-stage speed reduction is carried out through transmission, and finally output is carried out through the shell. By the adoption of the three-planet-set speed reduction structure, the gear, the planet carrier and the gear ring needed by first-stage speed reduction are all placed in the planet carrier needed by third-stage speed reduction, compact three-stage speed reduction is achieved, the structure is compact, space is saved when the whole aerial work platform is arranged, and therefore the working efficiency of the system is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of wheel-side reducers for aerial work, and in particular relates to a wheel-side reducer for an electric aerial work platform. Background Art

[0002] At present, aerial work platforms are facing the transformation of electrification. The existing wheel-side reducers have low deceleration, and the number of deceleration levels is generally 2, which cannot adapt well to the high speed characteristics of the motor. However, the existing aerial work platform solutions are mature. Simply and roughly adding one level of deceleration will greatly increase the length of the reducer, affecting the overall layout of the aerial work platform. Therefore, a wheel-side reducer that is convenient for electrification of aerial work platforms is needed to solve the above problems. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a wheel-side reducer for an electric aerial work platform to solve the problems in the existing market raised in the above background technology.

[0004] In order to achieve the above object, the technical solution of the utility model is as follows:

[0005] A wheel-side reducer for an electric aerial work platform, comprising:

[0006] The reducer body includes a fixed seat arranged in the shell, a primary sun gear arranged in the fixed seat, a primary planetary group arranged at the output end of the primary sun gear, a secondary planetary group connected to the primary planetary group through a spline shaft, and a tertiary planetary group connected to the secondary planetary group.

[0007] Through the above technical solution, the motor is input by the first-stage sun gear, passes through the first-stage planetary group for first-stage reduction, is transmitted to the second-stage planetary group by the spline for second-stage reduction, and then is transmitted to the third-stage planetary group for third-stage reduction, and finally output through the housing. The present application adopts a three-set planetary group reduction structure to place all the gears, planetary carriers and ring gears required for the first-stage reduction inside the planetary carrier of the third-stage reduction, thereby realizing a compact three-stage reduction. The compact structure is convenient for space saving in the overall arrangement of the aerial work platform, thereby improving the working efficiency of the system.

[0008] As a preferred solution of the present utility model, the first-stage planetary group is arranged in the fixed seat, and the fixed seat is used to support the first-stage planetary group.

[0009] As a preferred solution of the utility model, the fixing seat supports the three-stage planetary assembly.

[0010] Through the above technical solution, the ring gear of the first-stage planetary group is integrated on the fixed seat, and the fixed seat also serves as the planet carrier in the third-stage planetary group, making the structure compact.

[0011] As a preferred solution of the present utility model, the spline shaft and the secondary planetary set are meshed with each other.

[0012] As a preferred solution of the utility model, the secondary planetary group is connected to the tertiary planetary group via a connecting plate, the connecting plate is mounted on the tertiary planetary group, and a connecting block is provided on the connecting plate to be fixedly connected to the secondary planetary group.

[0013] Through the above technical solution, the rotation of the secondary planetary group drives the connecting plate to rotate, and the connecting plate drives the tertiary planetary group to rotate.

[0014] As a preferred solution of the utility model, the three-stage planetary set and the spline shaft are meshed with each other.

[0015] As a preferred solution of the utility model, the output end of the spline shaft is connected to the housing through a mounting plate.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] The large reduction ratio can keep the motor in the high-efficiency working area during the operation of the aerial work platform, thereby improving the working efficiency of the system;

[0018] Under the premise of not changing or increasing the length of the traditional hydraulic drive reducer, the wheel-side travel reducer is realized;

[0019] The ring gear of the first-stage planetary set is integrated on the fixed seat, and the fixed seat also serves as the planet carrier in the third-stage planetary set, making the structure compact;

[0020] The motor is input by the primary sun gear, passes through the primary planetary group for primary reduction, is transmitted to the secondary planetary group by the spline for secondary reduction, and then is transmitted to the third planetary group for third reduction, and finally outputs through the housing. The present application adopts a three-set planetary group reduction structure, and all the gears, planetary carriers and gear rings required for the first stage reduction are placed inside the planetary carrier of the third stage reduction, thereby realizing a compact three-stage reduction. The compact structure is convenient for space saving in the overall arrangement of the aerial work platform, thereby improving the working efficiency of the system. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 This is a schematic diagram of the structure of a wheel-side reducer for an electric aerial work platform according to the utility model;

[0023] Figure 2 For the utility model Figure 1 Schematic diagram of the overall structure. DETAILED DESCRIPTION

[0024] The following will be combined with the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] The utility model provides the following embodiments:

[0026] A wheel-side reducer for an electric aerial work platform, comprising: a reducer body 1, comprising a fixed seat 2 arranged in a housing 11, a primary sun gear 3 arranged in the fixed seat 2, a primary planetary group 4 arranged at the output end of the primary sun gear 3, a secondary planetary group 6 connected to the primary planetary group 4 through a spline shaft 5, and a tertiary planetary group 7 connected to the secondary planetary group, the primary planetary group 4 is arranged in the fixed seat 2, the fixed seat 2 is used to support the primary planetary group 4, the fixed seat 2 supports the tertiary planetary group 7, the gear ring of the primary planetary group 4 is integrated on the fixed seat 2, and the fixed seat 2 also serves as a tertiary planetary group 7. The function of the planet carrier in the planetary group 7 makes the structure compact. The motor is input by the primary sun gear 3, passes through the primary planetary group 4 for primary reduction, is transmitted to the secondary planetary group 6 by the spline for secondary reduction, and then is transmitted to the tertiary planetary group 7 for tertiary reduction, and finally output through the housing 11. The present application adopts a three-group planetary group reduction structure, and all the gears, planet carriers and ring gears required for the first stage reduction are placed inside the planet carrier of the third stage reduction, thereby realizing a compact three-stage reduction. The compact structure is convenient for saving space in the overall arrangement of the aerial work platform, thereby improving the working efficiency of the system.

[0027] As a further improvement of the present invention, the spline shaft 5 and the secondary planetary set 6 are meshed with each other.

[0028] As a further improvement of the utility model, the secondary planetary group 6 is connected to the tertiary planetary group 7 through a connecting plate 8. The connecting plate 8 is installed on the tertiary planetary group 7. A connecting block 81 is provided on the connecting plate 8 and is fixedly connected to the secondary planetary group 6. The rotation of the secondary planetary group 6 drives the connecting plate 8 to rotate, and the connecting plate 8 drives the tertiary planetary group 7 to rotate.

[0029] As a further improvement of the present utility model, the three-stage planetary set 7 and the spline shaft 5 are meshed with each other.

[0030] As a further improvement of the present invention, the output end of the spline shaft 5 is connected to the housing 11 through a mounting plate.

[0031] The large reduction ratio (up to 130) can keep the motor in the high-efficiency working area during the operation of the aerial work platform, thereby improving the working efficiency of the system;

[0032] Under the premise of not changing or increasing the length of the traditional hydraulic drive reducer, a reducer with a wheel side travel length of more than 100 can be realized;

[0033] The motor is input by the primary sun gear 3, passes through the primary planetary group 4 for primary reduction, is transmitted to the secondary planetary group 6 by the spline for secondary reduction, and then is transmitted to the tertiary planetary group 7 for tertiary reduction, and finally is output through the housing 11. The present application adopts a three-group planetary group reduction structure, and all the gears, planetary carriers and ring gears required for the first stage reduction are placed inside the planetary carrier of the third stage reduction, thereby realizing a compact three-stage reduction. The compact structure is convenient for space saving in the overall arrangement of the aerial work platform, thereby improving the system work efficiency, reducing complex production processes and processes, and being able to better serve and develop the market.

[0034] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A wheel reducer for an electric aerial work platform, characterized in that ,include: The reducer body (1) comprises a fixed seat (2) arranged in a housing (11), a primary sun gear (3) arranged in the fixed seat (2), a primary planetary group (4) arranged at the output end of the primary sun gear (3), a secondary planetary group (6) connected to the primary planetary group (4) via a spline shaft (5), and a tertiary planetary group (7) connected to the secondary planetary group.

2. The wheel-side reducer for an electric aerial work platform according to claim 1, characterized in that: The first-stage planetary group (4) is arranged in the fixing seat (2), and the fixing seat (2) is used to support the first-stage planetary group (4).

3. The wheel-side reducer for an electric aerial work platform according to claim 2, characterized in that: The fixing seat (2) supports the three-stage planetary assembly (7).

4. The wheel-side reducer for an electric aerial work platform according to claim 3, characterized in that: The spline shaft (5) and the secondary planetary set (6) are meshed with each other.

5. The wheel-side reducer for an electric aerial work platform according to claim 4, characterized in that: The secondary planetary group (6) is connected to the tertiary planetary group (7) via a connecting plate (8); the connecting plate (8) is mounted on the tertiary planetary group (7); and a connecting block (81) is provided on the connecting plate (8) and is fixedly connected to the secondary planetary group (6).

6. The wheel-side reducer for an electric aerial work platform according to claim 5, characterized in that: The three-stage planetary set (7) and the spline shaft (5) are meshed with each other.

7. The wheel-side reducer for an electric aerial work platform according to claim 6, characterized in that: The output end of the spline shaft (5) is connected to the housing (11) via a mounting plate.

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