Aerial work platform driving wire harness protection structure

Abstract

The utility model discloses an aerial work platform drive wire harness protection structure which comprises a chassis, a steering knuckle, a drive wire harness and a three-dimensional drag chain, the two opposite ends of the three-dimensional drag chain are respectively provided with a connector, the two connectors are respectively provided with a bundling portion, one connector is fixedly connected with the inner side face of the steering knuckle, the other connector is fixedly connected with the chassis, and the steering knuckle is fixedly connected with the chassis. The driving wire harness is arranged on the inner side of the three-dimensional drag chain in a penetrating mode, and the two ends of the driving wire harness are bundled on the two bundling parts respectively. According to the utility model, the technical problem of easy short circuit or open circuit of the driving wire harness in the prior art is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of aerial work platforms, in particular to a driving harness protection structure for aerial work platforms. Background Art

[0002] Aerial work platforms (hereinafter referred to as "equipment") are products that serve mobile aerial operations such as aerial work, equipment installation, and maintenance in various industries.

[0003] For models driven by front motors, since the steering cylinder is also front-mounted, and in order to pursue the flexibility of the equipment, the maximum steering angle will be designed to be as large as possible. This will cause the following problems after the equipment has been used for a long time: the drive harness connecting the drive motor frequently contacts the steering cylinder, which aggravates the wear of the drive harness and shortens the service life of the drive harness; since the drive harness and the drive harness protective cover are relatively compact, when the bending angle of the drive harness protective cover is too large, the stress of the drive harness protective cover will damage the core wire of the drive harness, and even cause the core wire to short-circuit or break. Once a short circuit or break occurs, it is not only cumbersome to replace, but also reduces work efficiency. Utility Model Content

[0004] The purpose of the utility model is to overcome the deficiencies of the prior art and provide a driving harness protection structure for an aerial work platform. The driving harness is passed through the inner side of a three-dimensional drag chain. There is sufficient movable clearance between the driving harness and the three-dimensional drag chain. The driving harness can move in multiple dimensions. Even when the bending angle of the three-dimensional drag chain is too large, the stress of the three-dimensional drag chain will not damage the core wire of the driving harness, thereby preventing the driving harness from short-circuiting or breaking, and ensuring the working efficiency of the equipment. The two ends of the driving harness are respectively tied to two bundling parts to prevent the harness from axial movement.

[0005] To achieve the above-mentioned purpose, the utility model provides a driving harness protection structure for an aerial work platform, including a chassis, a steering knuckle, a driving harness and a three-dimensional drag chain, wherein the opposite ends of the three-dimensional drag chain are respectively provided with joints, and the two joints are respectively provided with binding parts, one of the joints is fixedly connected to the inner side surface of the steering knuckle, and the other joint is fixedly connected to the chassis, the driving harness is passed through the inner side of the three-dimensional drag chain, and the two ends of the driving harness are respectively bound to the two binding parts.

[0006] Furthermore, the joint fixedly connected to the steering knuckle is a first joint, the first joint is provided with two connecting holes, the connecting holes pass through the two opposite radial end surfaces of the first joint, the inner side surface of the steering knuckle is provided with a first connecting plate, one end of the first connecting plate is fixedly connected to the inner side surface of the steering knuckle, the other end of the first connecting plate is bent with a first connecting portion, the first connecting portion is provided with two first through holes, the two connecting holes correspond one-to-one to the two first through holes, the first joint and the first connecting portion are connected by two first bolt pairs, the first bolt pairs pass through the first through hole and the connecting hole of the first joint in sequence.

[0007] Furthermore, a cover plate is provided at the top end of the steering knuckle, the top end of the steering knuckle is fixedly connected to the middle part of the cover plate, and the first connecting portion is located outside the parallel projection range of the cover plate in the top-view direction.

[0008] Furthermore, the joint fixedly connected to the chassis is a second joint, and the second joint and the first joint adopt the same structure. A second connecting plate is provided at the bottom of the chassis, and the top of the second connecting plate is fixedly connected to the chassis. A second connecting portion is bent at the bottom of the second connecting plate, and the second connecting portion is provided with two second through holes. The second joint and the second connecting portion are connected by two second bolt pairs, and the second bolt pairs sequentially penetrate the second through holes and the connecting hole of the second joint.

[0009] Furthermore, the central axis of the first joint and the central axis of the second joint are located in the same horizontal plane.

[0010] Furthermore, the three-dimensional drag chain is formed by connecting multiple chain links.

[0011] Furthermore, the first connector includes a clamping portion and a plug-in portion that can be connected and separated from each other, the clamping portion and the plug-in portion cooperate to form a ring structure and are sleeved on the end of the three-dimensional drag chain, and the bundling portion includes a plurality of columns arranged on the side walls of the clamping portion and / or the plug-in portion, and a limiting protrusion is also provided on the column, and the limiting protrusion limits the axial relative movement of the wiring harness and the column.

[0012] Furthermore, one end of the connecting hole passes through the clamping portion, and the other end of the connecting hole passes through the plug-in portion.

[0013] The beneficial effects of the utility model are:

[0014] The drive harness is placed inside the three-dimensional drag chain. There is enough clearance between the drive harness and the three-dimensional drag chain. The drive harness can move in multiple dimensions. Even when the bending angle of the three-dimensional drag chain is too large, the stress of the three-dimensional drag chain will not damage the core wire of the drive harness, thus preventing the drive harness from short circuit or open circuit, and ensuring the working efficiency of the equipment.

[0015] The two ends of the drive harness are respectively tied to two binding parts to prevent the harness from axial movement. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present application 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 only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0017] Figure 1 This is a schematic diagram of the overall structure of a driving harness protection structure for an aerial work platform according to the utility model;

[0018] Figure 2 This is a partial structural diagram of a driving harness protection structure for an aerial work platform of the utility model;

[0019] Figure 3 It is another partial structural diagram of a driving harness protection structure of an aerial work platform of the utility model;

[0020] Figure 4 The utility model is a schematic diagram of the cooperation between a first joint and a chain link in a driving harness protection structure of an aerial work platform.

[0021] In the figure, 1, chassis; 2, steering knuckle; 3, three-dimensional drag chain; 4, first connecting plate; 5, second connecting plate; 6, first joint; 7, cover plate; 8, second joint; 9, driving steering wheel; 10, steering shaft; 11, column; 12, connecting hole; 13, chain link; 14, clamping part; 15, plug-in part; 16, limiting protrusion. DETAILED DESCRIPTION

[0022] The following is combined with Figure 1 -Attached Figure 4 , the technical solutions in the embodiments of the present application are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present application.

[0023] It should be noted that all directional indications in the embodiments of the present application (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0024] In addition, the descriptions of "first", "second", etc. in this application are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0025] In this application, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0026] In addition, the technical solutions between the various embodiments of the present application can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0027] The utility model provides a driving harness protection structure for an aerial work platform.

[0028] A driving harness protection structure for an aerial work platform includes a chassis 1, a steering knuckle 2, a driving harness and a three-dimensional drag chain 3. The opposite ends of the three-dimensional drag chain 3 are provided with joints, and the two joints are provided with binding parts, one of which is fixedly connected to the inner side of the steering knuckle 2, and the other is fixedly connected to the chassis 1. The driving harness is passed through the inner side of the three-dimensional drag chain 3, and the two ends of the driving harness are respectively bound to the two binding parts. In a specific embodiment, the steering knuckle 2 is installed on the inner side of the driving steering wheel 9, and the side of the steering knuckle 2 facing away from the driving steering wheel 9 is the inner side of the steering knuckle 2.

[0029] In the technical solution proposed in the present application, the driving harness is passed through the inner side of the three-dimensional drag chain 3, and there is sufficient movable gap between the driving harness and the three-dimensional drag chain 3. The driving harness can move in multiple dimensions. Even when the bending angle of the three-dimensional drag chain 3 is too large, the stress of the three-dimensional drag chain 3 will not damage the core wire of the driving harness, thereby preventing the driving harness from short-circuiting or breaking, and ensuring the working efficiency of the equipment. The two ends of the driving harness are respectively tied to two bundling parts to prevent the harness from axial movement.

[0030] The joint fixedly connected to the steering knuckle 2 is the first joint 6, which is provided with two connecting holes 12, and the connecting holes 12 pass through the two opposite radial end surfaces of the first joint 6. The inner side surface of the steering knuckle 2 is provided with a first connecting plate 4, and one end of the first connecting plate 4 is fixedly connected to the inner side surface of the steering knuckle 2. The other end of the first connecting plate 4 is bent with a first connecting portion, and the first connecting portion is provided with two first through holes. The two connecting holes 12 correspond to the two first through holes one by one. The first joint 6 is connected to the first connecting portion by two first bolt pairs, and the first bolt pairs pass through the first through hole and the connecting hole 12 of the first joint 6 in sequence.

[0031] This connection method is adopted between the first joint 6 and the steering knuckle 2, so that there is a certain gap between the first joint 6 and the steering knuckle 2, which is convenient for bundling the drive wire harness on the bundling part of the first joint 6, and also convenient for connecting the drive wire harness with the drive motor on the steering knuckle 2 after bundling.

[0032] A cover plate 7 is provided at the top of the steering knuckle 2, and the top of the steering knuckle 2 is fixedly connected to the middle part of the cover plate 7, and the first connection portion is located outside the parallel projection range of the cover plate 7 in the top view direction. In a specific embodiment, the cover plate 7 is used to install the axial shaft 10. This structure prevents the cover plate 7 from interfering with the winding and connection of the drive harness.

[0033] The joint fixedly connected to the chassis 1 is the second joint 8, and the second joint 8 and the first joint 6 adopt the same structure. A second connecting plate 5 is provided at the bottom of the chassis 1, and the top of the second connecting plate 5 is fixedly connected to the chassis 1. A second connecting portion is bent at the bottom of the second connecting plate 5, and the second connecting portion is provided with two second through holes. The second joint 8 is connected to the second connecting portion by two second bolt pairs, and the second bolt pairs pass through the second through holes and the connecting hole 12 of the second joint 8 in sequence.

[0034] This connection method is used between the second connector 8 and the chassis 1, so that there is a certain gap between the second connector 8 and the bottom of the chassis 1, which is convenient for bundling the drive harness on the bundling part of the second connector 8, and also convenient for connecting the drive harness to the control system of the equipment after bundling.

[0035] The central axis of the first joint 6 and the central axis of the second joint 8 are located in the same horizontal plane.

[0036] The three-dimensional drag chain 3 is connected by multiple chain links 13. The three-dimensional drag chain 3 itself belongs to the scope of the prior art and will not be described in detail here. The working principle of the three-dimensional drag chain 3 can refer to the Chinese invention patent with authorization announcement number CN105313140B.

[0037] The first connector 6 includes a clamping part 14 and a plug-in part 15 that can be connected and separated from each other. The clamping part 14 and the plug-in part 15 are connected to form a ring structure and are sleeved on the end of the three-dimensional drag chain 3. The bundling part includes a plurality of columns 11 arranged on the side walls of the clamping part 14 and the plug-in part 15. The columns 11 are also provided with limiting protrusions 16. The limiting protrusions 16 limit the axial relative movement of the wire harness and the columns 11. One end of the connecting hole 12 passes through the clamping part 14, and the other end of the connecting hole 12 passes through the plug-in part 15. The first connector 6 and the second connector 8 are prior art and will not be described here. The specific working principle can be referred to the Chinese invention patent with application publication number CN107061629 A.

[0038] The above description is only a preferred embodiment of the present application, and does not limit the patent scope of the present application. All equivalent structural changes made by using the contents of the present application specification and drawings under the inventive concept of the present application, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present application.

Claims

1. A driving harness protection structure for an aerial work platform, characterized in that: It includes a chassis, a steering knuckle, a drive harness and a three-dimensional drag chain, wherein the opposite ends of the three-dimensional drag chain are respectively provided with joints, and the two joints are respectively provided with binding parts, one of the joints is fixedly connected to the inner side of the steering knuckle, and the other joint is fixedly connected to the chassis, the drive harness is passed through the inner side of the three-dimensional drag chain, and the two ends of the drive harness are respectively bound to the two binding parts.

2. The aerial work platform drive harness protection structure according to claim 1, characterized in that: The joint fixedly connected to the steering knuckle is a first joint, the first joint is provided with two connecting holes, the connecting holes pass through the two opposite radial end surfaces of the first joint, the inner side surface of the steering knuckle is provided with a first connecting plate, one end of the first connecting plate is fixedly connected to the inner side surface of the steering knuckle, the other end of the first connecting plate is bent with a first connecting portion, the first connecting portion is provided with two first through holes, the two connecting holes correspond one-to-one to the two first through holes, the first joint and the first connecting portion are connected by two first bolt pairs, the first bolt pairs pass through the first through hole and the connecting hole of the first joint in sequence.

3. The driving harness protection structure for an aerial work platform as claimed in claim 2, characterized in that: A cover plate is provided at the top end of the steering knuckle, the top end of the steering knuckle is fixedly connected to the middle part of the cover plate, and the first connecting portion is located outside the parallel projection range of the cover plate in the top-view direction.

4. The driving harness protection structure for an aerial work platform as claimed in claim 3, characterized in that: The joint fixedly connected to the chassis is a second joint, and the second joint and the first joint adopt the same structure. A second connecting plate is provided at the bottom of the chassis, and the top of the second connecting plate is fixedly connected to the chassis. A second connecting portion is bent at the bottom of the second connecting plate, and the second connecting portion is provided with two second through holes. The second joint and the second connecting portion are connected by two second bolt pairs, and the second bolt pairs sequentially penetrate the second through holes and the connecting hole of the second joint.

5. The driving harness protection structure for an aerial work platform as claimed in claim 4, characterized in that: The central axis of the first joint and the central axis of the second joint are located in the same horizontal plane.

6. The driving harness protection structure for an aerial work platform as claimed in claim 1, characterized in that: The three-dimensional drag chain is formed by connecting multiple chain links.

7. The driving harness protection structure for an aerial work platform as claimed in claim 4, characterized in that: The first connector includes a clamping portion and a plug-in portion that can be connected and separated from each other, the clamping portion and the plug-in portion cooperate to form a ring structure and are sleeved on the end of the three-dimensional drag chain, the bundling portion includes a plurality of columns arranged on the side walls of the clamping portion and / or the plug-in portion, and a limiting protrusion is also provided on the column, and the limiting protrusion limits the axial relative movement of the wiring harness and the column.

8. The driving harness protection structure for an aerial work platform as claimed in claim 7, characterized in that: One end of the connecting hole passes through the clamping portion, and the other end of the connecting hole passes through the plug-in portion.

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