Power device

Abstract

The utility model provides a power device which is characterized in that the power device comprises a hub, a power device and a driving device, one side of the transmission belt is fixed on the inner ring of the hub; the pressing strip is fixed to the other side of the transmission belt in the circumferential direction of the hub. And the driving wheel is in meshed connection with the transmission belt.

Description

Technical Field

[0001] The present application relates to the field of power drive technology, and in particular, to a power device. Background Art

[0002] With the rapid development of science and technology, the role of power devices in modern equipment has become increasingly prominent. It is not only the key to realize the mechanization and automation of equipment, but also an important driving force for enterprises to improve production efficiency and reduce labor costs.

[0003] Although the existing power device has a large bearing capacity, it has problems such as high transmission noise, difficult maintenance, and complex structure. Therefore, the market needs a power device with high transmission accuracy, simple structure, convenient maintenance and low noise. Utility Model Content

[0004] The present application proposes a power device, which includes: a wheel hub; a transmission belt, one side of which is fixed to the inner ring of the wheel hub; a pressure strip, which is fixed to the other side of the transmission belt along the circumferential direction of the wheel hub; and a driving wheel, which is meshed and connected with the transmission belt.

[0005] According to an embodiment of the present application, two rows of belt teeth are distributed along the circumferential direction of the hub on the other side of the transmission belt, and the pressure strip is fixed in the middle groove of the two rows of belt teeth of the transmission belt.

[0006] According to an embodiment of the present application, the outer peripheral surface of the driving wheel has two rows of gear teeth meshing with the two rows of belt teeth.

[0007] According to an embodiment of the present application, a driving device is also provided inside the driving wheel.

[0008] According to an embodiment of the present application, the power device further comprises a driven support wheel, the driven support wheel comprises a driven support shaft and a retaining ring sleeved on the driven support shaft, and the retaining ring is slidably connected to the transmission belt.

[0009] According to an embodiment of the present application, the driven support wheel also includes a driven bearing group sleeved on both ends of the driven support shaft, the driven bearing group includes a first driven bearing and a second driven bearing, the first driven bearing includes a first driven bearing inner ring fixedly connected to the retaining ring and a first driven bearing outer ring slidably connected to the first driven bearing inner ring; the second driven bearing includes a second driven bearing inner ring fixedly connected to the retaining ring and a second driven bearing outer ring slidably connected to the second driven bearing inner ring. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Other features, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings:

[0011] Figure 1 is a schematic diagram of a power device according to an embodiment of the present application; and

[0012] Figure 2 is a schematic diagram of a driven support wheel according to an embodiment of the present application. DETAILED DESCRIPTION

[0013] In order to better understand the present application, the technical solution of the present application will be described in more detail with reference to the accompanying drawings. It should be understood that these detailed descriptions are only descriptions of exemplary embodiments of the present application and are not intended to limit the scope of the present application in any way. Throughout the specification, the same reference numerals refer to the same elements. The expression "and / or" includes any combination or all combinations of one or more items in the associated listed items.

[0014] It should be noted that in this specification, expressions such as "first", "second", "third", etc. are only used to distinguish one feature from another feature, and do not represent any limitation on the features. Therefore, without departing from the teaching of the present application, the first driven bearing discussed below may also be referred to as the second driven bearing, and the first driven support wheel may also be referred to as the second driven support wheel. And vice versa.

[0015] In the accompanying drawings, the size, proportions and shapes of the figures have been slightly adjusted for ease of illustration. The drawings are for illustration only and are not drawn strictly to scale. As used herein, the terms "substantially," "approximately," and similar terms are used as terms of approximation, not degree, and are intended to account for the inherent deviations in measurements or calculations that would be recognized by one of ordinary skill in the art.

[0016] It should also be understood that expressions such as "including", "comprising", "having", "containing" and / or "comprising" are open rather than closed expressions in this specification, which indicate the presence of the stated features, elements and / or components, but do not exclude the presence of one or more other features, elements, components and / or combinations thereof. In addition, when expressions such as "at least one of..." appear after a list of listed features, they modify the entire list of features rather than just a single feature in the list. In addition, when describing embodiments of the present application, "may" is used to mean "one or more embodiments of the present application". And, the wording "exemplary" is intended to refer to an example or illustration.

[0017] Unless otherwise specified, all words (including engineering terms and scientific and technological terms) used in this article have the same meaning as those commonly understood by ordinary technicians in the field to which this application belongs. It should also be understood that, unless clearly stated in this application, words defined in common dictionaries should be interpreted as having the same meaning as their meaning in the context of the relevant technology, and should not be interpreted in an idealized or overly formal sense.

[0018] It should be noted that, in the absence of conflict, the features in the embodiments and examples of the present application can be combined with each other. In addition, unless explicitly limited or contradictory to the context, the specific steps included in the method described in the present application are not necessarily limited to the order described, but can be performed in any order or in parallel. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0019] Figure 1 is a schematic diagram of a power device 1000 according to an embodiment of the present application.

[0020] refer to Figure 1 The power device 1000 includes a wheel hub 1100, a transmission belt 1200, a pressure strip 1300 and a driving wheel 1400. One side of the transmission belt 1200 is fixed to the inner ring of the wheel hub 1100, the pressure strip 1300 is fixed to the other side of the transmission belt 1200 along the circumferential direction of the wheel hub 1100, and the driving wheel 1400 is meshed and connected with the transmission belt 1200. The power device 1000 of the present application replaces the traditional gear transmission mode, has a simple structure and is easy to maintain.

[0021] refer to Figure 1 The lower left part is an enlarged schematic diagram of the transmission belt 1200. The other side of the transmission belt 1200 is provided with two rows of belt teeth along the circumferential direction of the hub, and the pressure strip 1300 is fixed in the middle groove of the two rows of belt teeth of the transmission belt 1200. In the embodiment of the present application, the pressure strip 1300 can stabilize the transmission belt 1200, that is, when the driving wheel 1400 drives the transmission belt 1200 to move, the pressure strip 1300 can ensure that the transmission belt 1200 does not move left and right, thereby reducing transmission loss.

[0022] refer to Figure 1The lower right part is a partially enlarged schematic diagram of the driving wheel 1400. The outer peripheral surface of the driving wheel 1400 has two rows of gear teeth meshing with the two rows of belt teeth. In this embodiment, the gear tooth grooves on the outer peripheral surface of the driving wheel 1400 match the two rows of belt tooth grooves of the transmission belt 1200. Specifically, by cooperating with the pressure strip 1300, this structure can greatly reduce energy loss and improve transmission efficiency and transmission stability. At the same time, compared with the gear transmission structure, the transmission belt 1200 has a smoother transmission while ensuring transmission accuracy, and does not require lubrication. During operation, the transmission belt 1200 will not generate a lot of noise.

[0023] According to an embodiment of the present application, a driving device is further disposed inside the driving wheel 1400. Optionally, the driving device may be a motor.

[0024] According to an embodiment of the present application, the driving wheel 1400 can rotate clockwise or counterclockwise. For example, when the driving wheel 1400 rotates counterclockwise, the transmission belt 1200 will be driven forward, thereby pushing the wheel hub 1100 forward. This mode is suitable for scenes that require forward propulsion, such as the forward movement of a vehicle. On the contrary, when the driving wheel 1400 rotates clockwise, the transmission belt 1200 will be driven backward, thereby driving the wheel hub to move backward. This mode is suitable for scenes that require retreat or retraction, such as the reversing of a vehicle, the recovery of equipment, etc.

[0025] It can be seen that the embodiments of the present application are applicable to trackless vehicles, especially two-wheeled robots. For example, with the cooperation of dual drive wheels, the wheel hubs on both sides of the two-wheeled robot can move simultaneously in different directions. By controlling the speed and direction of the dual drive wheels, different motion trajectories such as forward, backward and turning of the two-wheeled robot can be achieved.

[0026] Figure 2 is a schematic diagram of a driven support wheel 1500 according to an embodiment of the present application.

[0027] refer to Figure 2 , the power device 1000 also includes a driven support wheel 1500, which has a driven support shaft 1510 and a retaining ring 1520 sleeved on the driven support shaft, and the retaining ring 1520 is slidably connected to the transmission belt 1200. Specifically, the driven support wheel 1500 can play a role in supporting the transmission belt 1200, ensuring the stable operation of the motion device 1000, and avoiding the reduction of transmission efficiency or equipment damage caused by vibration or deviation. Optionally, the power device 1000 can be provided with at least one driven support wheel 1500 to form a continuous support network. In addition, the manner in which the retaining ring 1520 is slidably connected to the transmission belt 1200 can effectively reduce friction and improve transmission efficiency while supporting the transmission belt 1200.

[0028] According to an embodiment of the present application, the driven support wheel 1500 further includes a driven bearing group 1530 sleeved on both ends of the driven support shaft 1510 .

[0029] According to the facts of the present application, the driven bearing group 1530 includes a first driven bearing 1531 and a second driven bearing 1532. The first driven bearing 1531 includes a first driven bearing inner ring 1531a fixedly connected to the retaining ring 1520 and a first driven bearing outer ring 1531b slidably connected to the first driven bearing inner ring 1531a; the second driven bearing 1532 includes a second driven bearing inner ring 1532a fixedly connected to the retaining ring 1520 and a second driven bearing outer ring 1532b slidably connected to the second driven bearing inner ring 1532a.

[0030] Specifically, a rolling body is disposed between the first driven bearing inner ring 1531a and the first driven bearing outer ring 1531b, and correspondingly, a rolling body is also disposed between the second driven bearing inner ring 1532a and the second driven bearing outer ring 1532b, and the rolling body may be a ball, etc. Due to its good rolling performance, the rolling body can reduce the friction between the driven bearing inner ring and the driven bearing outer ring, and at the same time play a supporting role.

[0031] According to the embodiment of the present application, when the transmission belt 1200 moves, the retaining ring 1520 slidably connected thereto will roll accordingly. The rolling of the retaining ring 1520 further drives the rotation of the first driven bearing inner ring 1531a and the second driven bearing inner ring 1532a. The first driven bearing inner ring 1531a and the second driven bearing inner ring 1532a are respectively slidably connected with the first driven bearing outer ring 1531b and the second driven bearing outer ring 1532b through rolling bodies, thereby achieving smooth transmission of power. This design enables the driven bearing group 1530 to maintain good motion performance and stability when subjected to a large load.

[0032] The above description is only an implementation method of the present application and an explanation of the technical principles used. Those skilled in the art should understand that the scope of protection involved in the present application is not limited to the technical solution formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the technical concept. For example, the above features are replaced with (but not limited to) technical features with similar functions disclosed in this application.

Claims

1. A power device, characterized in that: The power unit comprises: Wheel hub; A transmission belt, one side of which is fixed to the inner ring of the wheel hub; A pressure strip, the pressure strip being fixed on the other side of the transmission belt along the circumferential direction of the hub; A driving wheel is meshedly connected with the transmission belt.

2. The power device according to claim 1, characterized in that: The other side of the transmission belt is provided with two rows of belt teeth along the circumferential direction of the hub, and the pressure strip is fixed in the middle groove of the two rows of belt teeth of the transmission belt.

3. The power device according to claim 2, characterized in that: The outer peripheral surface of the driving wheel has two rows of gear teeth meshed with the two rows of belt teeth.

4. The power device according to claim 3, characterized in that: A driving device is also arranged inside the driving wheel.

5. The power device according to claim 4, characterized in that: The power device also includes a driven support wheel, which has a driven support shaft and a retaining ring sleeved on the driven support shaft, and the retaining ring is slidably connected to the transmission belt.

6. The power device according to claim 5, characterized in that: The driven support wheel further comprises a driven bearing group sleeved on both ends of the driven support shaft, and the driven bearing group comprises a first driven bearing and a second driven bearing, wherein: The first driven bearing comprises a first driven bearing inner ring fixedly connected to the retaining ring and a first driven bearing outer ring slidably connected to the first driven bearing inner ring; The second driven bearing comprises a second driven bearing inner ring fixedly connected to the retaining ring and a second driven bearing outer ring slidably connected to the second driven bearing inner ring.

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