Energy-saving forklift hub motor

Abstract

The utility model relates to the technical field of forklift motors, in particular to an energy-saving forklift hub motor, which comprises a main shaft, a hub rotatably mounted on the main shaft, a motor and a planetary reduction mechanism, the motor and the planetary reduction mechanism are arranged in the hub, the main shaft is sleeved with the motor and the planetary reduction mechanism, and the planetary reduction mechanism is arranged on one side of the motor. The planetary speed reducing mechanism comprises a sun gear, a planet carrier assembly and at least one planet gear assembly installed on the planet carrier assembly. The motor drives the sun gear to rotate, the sun gear drives the planet gear assembly to rotate, then the gear ring is driven to rotate, and the gear ring outputs to drive the hub to rotate; compared with a traditional motor, the motor provided by the utility model is larger in output torque and sufficient in power, saves more electric energy, prolongs the service life, and reduces the operation cost.

Description

Technical Field

[0001] This utility model relates to the field of forklift motor technology, and in particular to an energy-saving forklift wheel hub motor. Background Technology

[0002] Forklifts are industrial material handling vehicles powered by electric motors, with a load capacity of 1.0 to 3.0 tons. Due to their low pollution and noise levels, they are widely used in indoor operations and other environmentally demanding work conditions, such as the pharmaceutical and food industries. The wheels of electric forklifts are mounted on the forks via a main shaft; however, existing forklift motors have low torque and insufficient power, thus increasing energy consumption and reducing production and work efficiency. Therefore, this application aims to design an energy-saving forklift wheel hub motor to solve the aforementioned technical problems. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings of existing technologies by proposing an energy-saving forklift wheel hub motor that has high output torque, sufficient power, energy saving, long service life, and reduced operating costs.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] An energy-saving forklift wheel hub motor includes a main shaft, a wheel hub rotatably mounted on the main shaft, and a motor and a planetary reduction mechanism disposed within the wheel hub. The motor and the planetary reduction mechanism are both sleeved on the main shaft, and the planetary reduction mechanism is disposed on one side of the motor.

[0006] The planetary reduction mechanism includes a sun gear, a planet carrier assembly, and at least one set of planetary gear assemblies mounted on the planet carrier assembly. The sun gear is fixedly connected to the motor output shaft, and the planet carrier assembly is arranged around the main shaft. The planetary gear assembly includes a large planetary gear and a small planetary gear. The small planetary gear is sleeved on the spindle of the large planetary gear. The large planetary gear meshes with the sun gear, and the small planetary gear meshes with the ring gear. The ring gear is mounted on the inner sidewall of the motor end cover, and the motor end cover is fixedly connected to the hub.

[0007] Preferably, the planetary gear assembly comprises 1-4 groups.

[0008] Preferably, the planetary carrier assembly includes an outer planetary carrier, an inner planetary carrier, and a plurality of connecting posts, wherein the plurality of connecting posts are disposed between the outer planetary carrier and the inner planetary carrier and are used to connect the outer planetary carrier and the inner planetary carrier.

[0009] Preferably, there are four connecting posts, which are arranged in a ring at uniform intervals.

[0010] Preferably, the motor end cover is fixedly connected to the wheel hub by a number of bolts.

[0011] This utility model has the following beneficial effects: The energy-saving forklift wheel hub motor of this utility model includes a main shaft, a hub rotatably mounted on the main shaft, and a motor and a planetary reduction mechanism disposed within the hub. Both the motor and the planetary reduction mechanism are sleeved on the main shaft, with the planetary reduction mechanism located on one side of the motor. The planetary reduction mechanism includes a sun gear, a planetary carrier assembly, and at least one set of planetary gear assemblies mounted on the planetary carrier assembly. In this utility model, the motor drives the sun gear to rotate, which in turn drives the planetary gear assembly to rotate, thereby driving the ring gear to rotate, and the ring gear output drives the hub to rotate. Compared with traditional motors, this utility model has a larger output torque, more power, saves more energy, extends service life, and reduces operating costs. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0013] Figure 2 for Figure 1 A partial sectional view.

[0014] Figure 3 for Figure 2 A sectional view along the AA direction.

[0015] Figure 4 for Figure 2 A sectional view along the BB direction.

[0016] In the diagram: 1. Main shaft, 2. Hub, 3. Motor, 4. Sun gear, 5. Large planetary gear, 6. Small planetary gear, 7. Gear ring, 8. Motor end cover, 9. Outer planetary carrier, 10. Inner planetary carrier, 11. Connecting column. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0018] Reference Figures 1-4 An energy-saving forklift wheel hub motor includes a main shaft 1, a wheel hub 2 rotatably mounted on the main shaft 1, and a motor 3 and a planetary reduction mechanism disposed in the wheel hub 2. The motor 3 and the planetary reduction mechanism are both sleeved on the main shaft 1, and the planetary reduction mechanism is disposed on one side of the motor 3.

[0019] The planetary reduction mechanism includes a sun gear 4, a planet carrier assembly, and at least one set of planetary gear assemblies mounted on the planet carrier assembly. The sun gear 4 is fixedly connected to the motor output shaft, and the planet carrier assembly is arranged around the main shaft 1. The planetary gear assembly includes a large planetary gear 5 and a small planetary gear 6. The small planetary gear 6 is sleeved on the spindle of the large planetary gear 5. The large planetary gear 5 meshes with the sun gear 4, and the small planetary gear 6 meshes with the gear ring 7. The gear ring 7 is mounted on the inner side wall of the motor end cover 8, and the motor end cover 8 is fixedly connected to the hub 2.

[0020] In this embodiment, the motor 3 drives the sun gear 4 to rotate, the sun gear 4 drives the planetary gear assembly to rotate, which in turn drives the gear ring 7 to rotate, and the gear ring 7 outputs to drive the hub 2 to rotate.

[0021] Specifically, the planetary gear assembly consists of 1 to 4 groups.

[0022] In this embodiment, the planetary gear assembly is preferably a single planetary gear assembly, which has been proven in practice to have more stable transmission performance and better transmission effect.

[0023] Reference Figure 4 Specifically, the planetary carrier assembly includes an outer planetary carrier 9, an inner planetary carrier 10, and a plurality of connecting posts 11, wherein the plurality of connecting posts 11 are disposed between the outer planetary carrier 9 and the inner planetary carrier 10 and are used to connect the outer planetary carrier 9 and the inner planetary carrier 10.

[0024] There are four connecting posts 11, which are arranged in a ring at uniform intervals.

[0025] In this embodiment, when the motor 3 drives the sun gear 4 to rotate, the sun gear 4 drives the planetary gear assembly to rotate, which in turn drives the gear ring 7 to rotate. The gear ring 7 outputs to drive the hub 2 to rotate. Neither the outer planetary carrier 9 nor the inner planetary carrier 10 of the planetary carrier assembly rotates.

[0026] Specifically, the motor end cover 8 is fixedly connected to the hub 2 by several bolts.

[0027] In this embodiment, several bolts are used to reliably connect the motor end cover 8 and the wheel hub 2. Since the gear ring 7 is installed on the motor end cover 8, when the gear ring 7 rotates, it drives the wheel hub 2 to rotate through the output of the gear ring 7, and its transmission performance is stable and reliable.

[0028] The working principle of this embodiment is as follows: When the motor 3 rotates, the output shaft of the motor 3 is connected to the sun gear 4, thereby driving the sun gear 4 to rotate. Since the sun gear 4 meshes with the large planetary gear 5 of the planetary gear assembly, and the small planetary gear 6 is sleeved on the spindle of the large planetary gear 5, and the small planetary gear 6 meshes with the ring gear 7, the sun gear 4 drives the large planetary gear 5 to rotate, and the small planetary gear 6 also rotates accordingly. In turn, the small planetary gear 6 drives the ring gear 7 to rotate. The ring gear 7 is mounted on the motor end cover 8, and the motor end cover 8 is fixedly connected to the hub 2 by several bolts. Finally, the output of the ring gear 7 drives the motor end cover 8 to rotate, which in turn drives the hub 2 to rotate. The outer planetary carrier 9 and the inner planetary carrier 10 of the planetary carrier assembly do not rotate.

[0029] In addition, it should be noted that the motors and other components involved in this embodiment are not fundamentally different from existing technologies, so their structure and working principle will not be described in detail here.

[0030] In summary, this energy-saving forklift wheel hub motor drives the sun gear to rotate, which in turn drives the planetary gear assembly to rotate, which in turn drives the ring gear to rotate, and the ring gear output drives the wheel hub to rotate. Compared with traditional motors, it has a larger output torque, more power, saves more energy, extends service life, and reduces operating costs.

[0031] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An energy-saving forklift wheel hub motor, comprising a main shaft (1), a wheel hub (2) rotatably mounted on the main shaft (1), and a motor (3) and a planetary reduction mechanism disposed within the wheel hub (2), characterized in that, The motor (3) and the planetary reduction mechanism are both sleeved on the main shaft (1), and the planetary reduction mechanism is located on one side of the motor (3); The planetary reduction mechanism includes a sun gear (4), a planet carrier assembly, and at least one set of planetary gear assemblies mounted on the planet carrier assembly. The sun gear (4) is fixedly connected to the motor output shaft, and the planet carrier assembly is arranged around the main shaft (1). The planetary gear assembly includes a large planetary gear (5) and a small planetary gear (6). The small planetary gear (6) is sleeved on the spindle of the large planetary gear (5). The large planetary gear (5) meshes with the sun gear (4), and the small planetary gear (6) meshes with the gear ring (7). The gear ring (7) is mounted on the inner side wall of the motor end cover (8), and the motor end cover (8) is fixedly connected to the hub (2).

2. The energy-saving forklift wheel hub motor according to claim 1, characterized in that, The planetary gear assembly consists of 1 to 4 groups.

3. The energy-saving forklift wheel hub motor according to claim 1, characterized in that, The planetary carrier assembly includes an outer planetary carrier (9), an inner planetary carrier (10), and a plurality of connecting posts (11), which are located between the outer planetary carrier (9) and the inner planetary carrier (10) and are used to connect the outer planetary carrier (9) and the inner planetary carrier (10).

4. The energy-saving forklift wheel hub motor according to claim 3, characterized in that, There are four connecting posts (11), which are arranged in a ring at uniform intervals.

5. An energy-saving forklift wheel hub motor according to claim 1, characterized in that, The motor end cover (8) is fixedly connected to the hub (2) by several bolts.

Images