Supporting device

Abstract

The utility model provides a supporting device on a driving wheel, which is characterized in that the supporting device comprises a wheel hub frame, the wheel hub frame is in an annular shape and is of a hollow structure, the inner diameter of the wheel hub frame is D1, and the outer diameter of the wheel hub frame is D2; the spring steel band is arranged in the hollow structure of the hub frame and is in sliding connection with the hub frame, and the diameter D3 of the spring steel band is larger than D1 and smaller than D2; and the plurality of supporting legs are arranged on the outer side of the spring steel band.

Description

Technical Field

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

[0002] With the rapid development of science and technology, the support device, as an important component of the driving wheel, plays an increasingly prominent role in modern equipment. 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] The existing support device often contacts the ground at a single point, which results in a small force area, which in turn leads to poor ground grip and poor balance of the equipment equipped with the support device. Therefore, a support device that is easy to maintain, has uniform force and is stable is needed in the market. Utility Model Content

[0004] The present application proposes a support device on a driving wheel, the support device comprising: a hub frame, the hub frame having an annular shape and a hollow structure, the inner diameter of the hub frame being D1, and the outer diameter of the hub frame being D2; a spring steel belt, the spring steel belt being arranged in the hollow structure of the hub frame and being slidably connected to the hub frame, the diameter D3 of the spring steel belt being greater than D1 and smaller than D2; and a plurality of support feet, the plurality of support feet being arranged on the outside of the spring steel belt.

[0005] According to an embodiment of the present application, the supporting device further includes: a fixing pin, which passes through the wheel hub frame and some of the supporting feet among the plurality of supporting feet and is fixedly connected to the wheel hub frame.

[0006] According to an embodiment of the present application, the supporting foot has a hole extending in the radial direction of the hub carrier at a portion in contact with the fixing pin.

[0007] According to an embodiment of the present application, the support foot has a groove on a side facing away from the spring steel strip.

[0008] According to an embodiment of the present application, the wheel hub carrier further has a clamping portion, and a side of the supporting foot close to the spring steel strip is clamped with the clamping portion.

[0009] According to an embodiment of the present application, the supporting device further includes: a first protection belt and a second protection belt, the first protection belt is fixedly connected to one side of the hub frame, and the second protection belt is fixedly connected to the other side of the hub frame.

[0010] According to an embodiment of the present application, the driving wheel is additionally equipped with a supporting device according to any one of claims 1-6. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] 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:

[0012] Figure 1 is a cross-sectional schematic diagram of a support device according to an embodiment of the present application;

[0013] Figure 2 is a schematic diagram of a support foot according to an embodiment of the present application; and

[0014] Figure 3 It is a schematic diagram of a driving wheel and a supporting device according to an embodiment of the present application. DETAILED DESCRIPTION

[0015] 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.

[0016] 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 this application, the first guard band discussed below may also be referred to as the second guard band. And vice versa.

[0017] 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.

[0018] 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.

[0019] 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.

[0020] 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.

[0021] Figure 1 is a cross-sectional schematic diagram of a support device 1000 according to an embodiment of the present application, Figure 3 It is a schematic diagram of a driving wheel 2000 and a supporting device 1000 according to an embodiment of the present application.

[0022] refer to Figure 1 and Figure 3 The supporting device 1000 includes: a hub frame 1100, a spring steel belt 1200 and a supporting foot 1300. The hub frame 1100 has a ring shape and a hollow structure, the inner diameter of the hub frame 1100 is D1, and the outer diameter of the hub frame 1100 is D2. The spring steel belt 1200 is arranged in the hollow structure of the hub frame 1100 and is slidably connected to the hub frame 1100, and the diameter D3 of the spring steel belt 1200 is greater than D1 and less than D2. The spring steel belt 1200 is roughly concentric with the hub frame 1100, so there is a roughly uniform gap between the spring steel belt 1200 and the hub frame 1100. The supporting foot 1300 is arranged on the outside of the spring steel belt 1200. According to the present application, the thickness of the spring steel belt 1200 can be ignored. Since D3 is greater than D1 and less than D2 , the spring steel strip 1200 can undergo elastic deformation in the hollow structure of the hub carrier 1100 .

[0023] In addition, the support foot 1300 can be made of materials such as rubber and polyurethane. The support foot 1300 with good elasticity can reduce the vibration of the support device 1000 when encountering bumpy ground, thereby achieving the function of maintaining balance and maintaining the equipment.

[0024] refer to Figure 1 The supporting device 1000 further includes a fixing pin 1400. The fixing pin 1400 penetrates the hub frame 1100 and the supporting foot 1300 and is fixedly connected to the hub frame 1100.

[0025] Generally speaking, the fixing pin 1400 has a fixing function. Since the fixing pin 1400 passes through the hub frame 1100 and the support leg 1300 and is fixedly connected to the hub frame 1100, the support leg 1300 will not shake left and right in the hub frame 1100, which helps to maintain the stability of the driving wheel 2000 and the device carried by the driving wheel 2000.

[0026] Figure 2 is a schematic diagram of a support foot 1300 according to an embodiment of the present application. Figure 2 The support foot 1300 has a hole 1301 extending in the radial direction of the hub carrier 1100 at the portion in contact with the fixing pin 1400. According to the present application, the support foot 1300 can move in the radial direction of the hub carrier 1100 under the restriction of the fixing pin 1400 and the hole 1301.

[0027] refer to Figure 3 In the enlarged schematic diagram, since the support foot 1300 is designed to be continuously and closely arranged, when the support device 1000 passes through the horizontal ground, the support foot 1300 can be slightly deformed, and the closely arranged layout can ensure that the support device 1000 is always in contact with the ground, and can provide stable support even on slightly uneven roads. However, when facing more complex and uneven road conditions or when it is necessary to cross steps, the advantages of this application will be more obvious. Specifically, on an uneven road surface, the support foot 1300 passing through the raised ground will retract and squeeze the spring steel belt 1200 under the restriction of the fixing pin 1400, and the elastic deformation of the spring steel belt 1200 will absorb and store the elastic potential energy, and the other support feet 1300 that have not passed through the raised ground will continue to maintain contact with the ground, ensuring the overall stability of the support device 1000. When the support foot 1300 passes through the raised ground and returns to the flat ground, the elastic potential energy stored in the spring steel belt 1200 is released and converted into kinetic energy, which reversely squeezes the support foot 1300 back to its original position.

[0028] Similarly, when the support device 1000 needs to cross a step, the support foot 1300 that first contacts the edge of the step will retract and squeeze the spring steel belt 1200 to adapt to the height difference, so that the support foot 1300 can quickly return to its original position after contacting the ground, and the support feet 1300 arranged behind will repeat the above-mentioned retraction and recovery process in turn, thereby achieving the purpose of multiple support feet 1300 contacting the ground at the same time and stably crossing the steps.

[0029] According to the present application, the side of the support foot 1300 away from the spring steel strip 1200 has a groove 1302. The groove 1302 can increase the friction force, increase the contact area between the support foot 1300 and the ground, and prevent the support device 1000 from slipping. In the present application, the depth, width and direction of the groove 1302 can be adaptively changed according to the actual terrain. For example, in the case where greater friction force is required, the depth and width of the groove 1302 can be increased.

[0030] refer to Figure 1 The hub carrier 1100 also has a clamping portion 1101, and the side of the support foot 1300 close to the spring steel strip 1200 is clamped with the clamping portion 1101. The design of the clamping portion 1101 is matched with the hole 1301 of the support foot 1300. On the one hand, not all holes 1301 are slidably connected with the fixing pin 1400. The design of the clamping portion 1101 can prevent the support foot 1300 from having a large displacement in the vertical direction, which leads to the instability of the support device 1100. On the other hand, even if there is an error in the size of the hole 1301 or the design of the fixing pin 1400, the design of the clamping portion 1101 can also limit the displacement of the support foot 1300 in the vertical direction, so that the support foot 1300 can stably perform continuous movement.

[0031] refer to Figure 1 and Figure 3 The supporting device 1000 further includes: a first protection belt 1501 and a second protection belt 1502, wherein the first protection belt 1501 is fixedly connected to one side of the hub frame 1100, and the second protection belt 1502 is fixedly connected to the other side of the hub frame 1100. The first protection belt 1501 and the second protection belt 1502 can maintain the stability of the hub frame 1100 and protect the hub frame 1100 from being affected by other devices.

[0032] Figure 3 A schematic diagram showing the driving wheel 2000 equipped with the supporting device 1000 according to an embodiment of the present application in motion and crossing a step is shown.

[0033] The driving wheel 2000 equipped with the supporting device 1000 according to the embodiment of the present application has stronger gripping ability and step climbing ability than ordinary wheeled robots or ordinary supporting leg robots. When climbing stairs, the cooperation of the spring steel belt 1200 and the supporting leg 1300 prevents the supporting device 1000 from being difficult to maintain balance due to single-point force, and at the same time realizes stable multi-point contact between the supporting device 1000 and the plane or step.

[0034] In addition, due to the presence of the grooves 1302, the support device 1000 can set different types of grooves 1302 according to the terrain, so that the driving wheel 2000 of the support device 1000 according to the embodiment of the present application can be suitable for different complex road conditions, and the support foot 1300 that is easy to load and unload can achieve the purpose of easy maintenance of the support device 1000.

[0035] 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 the technical features with similar functions disclosed in this application (but not limited to) by each other.

Claims

1. A support device on a driving wheel, characterized in that: The supporting device comprises: A hub frame, wherein the hub frame has an annular shape and a hollow structure, the inner diameter of the hub frame is D1, and the outer diameter of the hub frame is D2; A spring steel belt, the spring steel belt is arranged in the hollow structure of the hub carrier and is slidably connected to the hub carrier, and the diameter D3 of the spring steel belt is greater than D1 and smaller than D2; A plurality of supporting feet are arranged on the outer side of the spring steel strip.

2. The support device according to claim 1, characterized in that: The supporting device further comprises: a fixing pin, wherein the fixing pin penetrates through the wheel hub frame and some of the supporting legs among the plurality of supporting legs, and is fixedly connected to the wheel hub frame.

3. The supporting device according to claim 2, characterized in that: The supporting foot has a hole extending in the radial direction of the hub carrier at a portion contacting the fixing pin.

4. The supporting device according to claim 1, characterized in that: The side of the supporting foot facing away from the spring steel strip has a groove.

5. The supporting device according to claim 3, characterized in that: The hub frame also has a clamping portion, and a side of the supporting foot close to the spring steel strip is clamped with the clamping portion.

6. The supporting device according to claim 5, characterized in that: The supporting device further comprises: a first protection belt and a second protection belt, wherein the first protection belt is fixedly connected to one side of the hub frame, and the second protection belt is fixedly connected to the other side of the hub frame.

7. A driving wheel, characterized in that: The driving wheel is equipped with a supporting device according to any one of claims 1-6.

Images