Walking device and self-walking lifting equipment

Abstract

The utility model belongs to the field of lifting equipment, and particularly relates to a walking device and self-walking lifting equipment, according to the walking device, a driving wheel and a driving motor are arranged on a turnover mechanism, and the driving wheel can be switched between being in contact with the ground and being separated from the ground under the action of the turnover mechanism. When the self-walking lifting equipment is in a walking state, the linear driving part drives the mounting seat to rotate around the rotating shaft, so that the driving wheel is always in contact with the ground, and the whole self-walking lifting equipment is driven to move by utilizing the rolling of the driving wheel on the ground; when the equipment lifts goods, the driving wheels are switched to be separated from the ground under the action of the turnover mechanism, at the moment, the bottom of the rear end of the base makes contact with the ground, the two bearing wheels and the rear end of the base are used for providing support, the driving wheels are not stressed when being separated from the ground, and the service life of the driving wheels is prolonged; the number of wheels used at the bottom of the base can be reduced according to the equipment load condition, and cost is saved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of lifting equipment, in particular to a walking device and a self-walking lifting equipment. BACKGROUND

[0002] In the current engineering machinery and automobile repair industry, most of the lifting equipment has a self-walking function, and the self-walking function is realized based on a walking device arranged at the lower end of the lifting equipment. The walking device generally includes a plurality of walking wheels, at least one of which is driven by a motor. When the lifting equipment is in a walking state (moving position) and a working state (lifting goods to a certain height), each walking wheel in the walking driving mechanism is always in contact with the walking surface (such as the ground or the track). Since the weight of the goods on the lifting equipment acts on the walking wheels when the lifting equipment is in the working state, in order to meet the carrying function of the lifting equipment, the number of walking wheels needs to be considered according to the load in the working state and the maximum load that can be borne by the walking wheels themselves during design. As a result of such design, the number of walking wheels is large, and the cost is high. CONTENT OF THE UTILITY MODEL

[0003] The embodiment of the present application provides a walking device and a self-walking lifting equipment, which aims to reduce the number of wheels used, improve the service life of the wheels, and reduce the cost.

[0004] Therefore, according to one aspect of the present application, a walking device is provided, which comprises:

[0005] a base having a front end and a rear end arranged oppositely;

[0006] two carrying wheels rotatably arranged at the bottom of the front end of the base, and the two carrying wheels are in rolling contact with the ground;

[0007] a turnover mechanism comprising a mounting seat and a linear driving member, one side of the mounting seat is hingedly connected to the rear end of the base through a rotating shaft, one end of the linear driving member is hingedly connected to the base, and the other end is hingedly connected to the mounting seat, and the linear driving member is used to drive the mounting seat to rotate around the rotating shaft to approach or move away from the ground; and

[0008] a driving assembly comprising a driving wheel rotatably arranged on the mounting seat and a driving motor arranged on the mounting seat and connected to the driving wheel, the driving wheel can be switched between contacting the ground and being separated from the ground under the action of the turnover mechanism, and when the driving wheel is separated from the ground, the bottom of the rear end of the base is in contact with the ground.

[0009] Optionally, the linear driving member comprises an oil cylinder or an electric cylinder, the cylinder body of the oil cylinder or the electric cylinder is hingedly connected to the base, and the telescopic rod of the oil cylinder or the electric cylinder is hingedly connected to the mounting seat.

[0010] Optionally, the rear end of the base is spaced apart upward and downward by a first hinge seat and a second hinge seat, the mounting seat is provided with a third hinge seat near one side of the base, the upper end of the mounting seat is provided with a fourth hinge seat, and the third hinge seat is rotationally connected with the second hinge seat through the rotating shaft.

[0011] Optionally, the base comprises a seat body and a stand, the seat body comprises a cross beam and two longitudinal beams respectively arranged at two ends of the cross beam, the two longitudinal beams are formed with the front end of the base at the ends away from the cross beam, and two bearing wheels are rotationally arranged at the bottoms of the two longitudinal beams away from the cross beam; the lower end of the stand is fixedly connected with the middle part of the cross beam, the cross beam and the stand form the rear end of the base, and the first hinge seat and the second hinge seat are arranged on the side of the stand away from the longitudinal beams.

[0012] Optionally, a reinforcing rib is arranged between the lower end of the stand and the cross beam.

[0013] Optionally, the diameter of the driving wheel is greater than the diameter of the bearing wheel, and the wheel width of the driving wheel is greater than the wheel width of the bearing wheel.

[0014] Optionally, the bearing wheel is made of metal, and the outer peripheral wall of the driving wheel is covered with rubber.

[0015] According to another aspect of the present application, a self-walking lifting device is provided, comprising a lifting mechanism, a fork and a walking device as described above, the lifting mechanism is arranged on the base, and the fork is arranged on the lifting mechanism and can move up and down under the action of the lifting mechanism.

[0016] The walking device and the self-walking lifting device provided by the present application have the following beneficial effects: compared with the prior art, the walking device of the present application sets the driving wheel and the driving motor on the turnover mechanism, and the driving wheel can be switched between contacting the ground and being separated from the ground under the action of the turnover mechanism. In the walking state of the self-walking lifting device, the mounting seat is driven to rotate around the rotating shaft by the linear driving member, so that the driving wheel always contacts the ground, the driving wheel rolls on the ground, and the whole self-walking lifting device is driven to move; in the state of lifting goods, the driving wheel is switched to be separated from the ground under the action of the turnover mechanism, at this time, the bottom of the rear end of the base contacts the ground, the two bearing wheels and the rear end of the base provide support, the driving wheel is not stressed when separated from the ground, the service life of the driving wheel is increased, and the number of wheels used at the bottom of the base can be reduced according to the load of the device, thereby saving costs.

[0017] Meanwhile, the walking device has relatively simple structure, high practicability and low manufacturing cost, and can effectively reduce the overall cost of the equipment. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative effort on the basis of these drawings.

[0019] Wherein:

[0020] Figure 1 is a structural schematic diagram of a walking device according to an embodiment of the present application;

[0021] Figure 2 is a structural schematic diagram of a self-walking lifting equipment according to an embodiment of the present application;

[0022] Figure 3 is a side view of the self-walking lifting equipment in a walking state according to an embodiment of the present application;

[0023] Figure 4 is a side view of the self-walking lifting equipment in a working state according to an embodiment of the present application.

[0024] Explanation of reference signs:

[0025] 10, goods;

[0026] 100, base; 111, cross beam; 112, longitudinal beam; 120, stand column; 130, reinforcing rib; 101, first hinge seat; 102, second hinge seat;

[0027] 200, bearing wheel;

[0028] 310, mounting seat; 320, linear driving member; 330, rotating shaft; 312, fourth hinge seat;

[0029] 410, driving wheel; 420, driving motor;

[0030] 500, lifting mechanism;

[0031] 600, fork. DETAILED DESCRIPTION

[0032] For the purpose of promoting an understanding of the application, the application will be described in greater detail below with reference to the drawings. The preferred embodiments of the application are shown in the drawings. However, the application can be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and fully convey the scope of the application to those skilled in the art.

[0033] It should be noted that when an element is referred to as being "fixed" or "attached" to another element, it can be directly on the other element or indirectly on the other element, with one or more intervening elements. When an element is referred to as being "connected" or "linked" to another element, it can be directly connected or linked to the other element or indirectly connected or linked to the other element, with one or more intervening elements.

[0034] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, specify relative positions or orientations based on the orientations or positions shown in the drawings, and are used only for the purpose of describing the application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the application.

[0035] In addition, the terms "first", "second", etc. are used only for descriptive purposes and should not be construed as indicating or implying relative importance or an indicated number of technical features. Therefore, features defined as "first", "second", etc. can explicitly or implicitly include one or more of the features.

[0036] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the application belongs. The terminology used in the specification of the application herein is only for the purpose of describing specific embodiments and is not intended to limit the application.

[0037] According to one aspect of the application, embodiments of the application provide a walking device, as shown in Figure 1 The walking device includes a base 100, two bearing wheels 200, a turnover mechanism, and a driving assembly. The base 100 has opposite front and rear ends, and the two bearing wheels 200 are rotatably arranged at the bottom of the front end of the base 100, and are in rolling contact with the ground. The turnover mechanism includes a mounting seat 310 and a linear driving member 320. One side of the mounting seat 310 is hingedly connected to the rear end of the base 100 through a rotating shaft 330, and one end of the linear driving member 320 is hingedly connected to the base 100 and the other end is hingedly connected to the mounting seat 310, as shown in Figures 3-4As shown, the linear driving member 320 is used to drive the mounting seat 310 to rotate around the rotating shaft 330 to approach or move away from the ground. The driving assembly comprises a driving wheel 410 rotatably arranged on the mounting seat 310 and a driving motor 420 arranged on the mounting seat 310 and connected with the driving wheel 410, and the driving wheel 410 can be switched between contacting the ground and being separated from the ground under the action of the turnover mechanism. When the driving wheel 410 is separated from the ground, the bottom of the rear end of the base 100 contacts the ground.

[0038] In the embodiment of the present application, the walking device is provided with the driving wheel 410 and the driving motor 420 arranged on the turnover mechanism, and the driving wheel 410 can be switched between contacting the ground and being separated from the ground under the action of the turnover mechanism. As shown in Figure 3 As shown, in the walking state of the self-walking lifting equipment with the walking device, the mounting seat 310 is driven to rotate around the rotating shaft 330 by the linear driving member 320, so that the driving wheel 410 always contacts the ground, and the whole self-walking lifting equipment is driven to move by rolling of the driving wheel 410 on the ground; as shown in Figure 4 As shown, in the state of lifting the goods 10 by the equipment, the driving wheel 410 is switched to be separated from the ground under the action of the turnover mechanism, at this time, the bottom of the rear end of the base 100 contacts the ground, and the two bearing wheels 200 and the rear end of the base 100 are used to provide support, the driving wheel 410 is not forced when it is separated from the ground, which increases the service life of the driving wheel 410, and the number of the wheels at the bottom of the base 100 can be reduced according to the load of the equipment, thereby saving the cost.

[0039] Meanwhile, the structure of the walking device is relatively simple, practical and low in manufacturing cost, which can effectively reduce the overall cost of the equipment.

[0040] In one embodiment, the linear driving member 320 comprises an oil cylinder or an electric cylinder, the cylinder body of the oil cylinder or the electric cylinder is hinged to the base 100, and the telescopic rod of the oil cylinder or the electric cylinder is hinged to the mounting seat 310.

[0041] In one embodiment, as shown in Figure 1 As shown, the rear end of the base 100 is provided with the first hinge seat 101 and the second hinge seat 102 in an up-down interval, the side of the mounting seat 310 close to the base 100 is provided with the third hinge seat (hidden and not shown), the upper end of the mounting seat 310 is provided with the fourth hinge seat 312, and the third hinge seat is rotatably connected with the second hinge seat 102 through the rotating shaft 330; one end of the linear driving member 320 is rotatably connected with the first hinge seat 101, and the other end is rotatably connected with the fourth hinge seat 312.

[0042] Specifically, the base 100 comprises a seat body and a column 120, the seat body comprises a cross beam 111 and two longitudinal beams 112 respectively arranged at two ends of the cross beam 111, that is, the seat body as a whole is in the shape of "U", the two longitudinal beams 112 form a front end of the base 100 at the ends away from the cross beam 111, and two load wheels 200 are respectively rotationally arranged at the bottoms of the two longitudinal beams 112 at the ends away from the cross beam 111; the lower end of the column 120 is fixedly connected with the middle part of the cross beam 111, the cross beam 111 and the column 120 form a rear end of the base 100, and the first and second hinge seats 101 and 102 are arranged on the side of the column 120 away from the longitudinal beams 112.

[0043] In a specific embodiment, as shown in Figure 1 , a reinforcing rib 130 is arranged between the lower end of the column 120 and the cross beam 111. The reinforcing rib 130 is used to improve the strength and stability of the connection between the lower end of the column 120 and the cross beam 111.

[0044] Preferably, one reinforcing rib 130 is arranged on each of the left and right sides of the lower end of the column 120, and the reinforcing rib 130 is in the shape of a right triangle.

[0045] In an embodiment, as shown in Figure 1 , the diameter of the drive wheel 410 is greater than the diameter of the load wheel 200, and the wheel width of the drive wheel 410 is greater than the wheel width of the load wheel 200.

[0046] Further, the load wheel 200 is made of metal and has high strength and load capacity. The outer peripheral wall of the drive wheel 410 is covered with rubber to improve the friction between the drive wheel 410 and the ground in the walking state and avoid slipping during movement.

[0047] According to another aspect of the present application, the embodiments of the present application also provide a self-walking lifting device, as shown in Figures 2-4 , the self-walking lifting device comprises a lifting mechanism 500, a load fork 600 and the walking device in any of the above embodiments, the lifting mechanism 500 is arranged on the base 100, and the load fork 600 is arranged on the lifting mechanism 500 and can move up and down under the action of the lifting mechanism 500.

[0048] It can be understood that, since the self-walking lifting device adopts the walking device provided in the embodiments of the present application, the self-walking lifting device also has the advantages and benefits brought by the walking device.

[0049] Specifically, as shown in Figure 3 , in the walking state of the self-walking lifting device, the drive wheel 410 contacts the ground under the action of the turnover mechanism, the drive motor 420 drives the drive wheel 410 to roll on the ground, and the whole self-walking lifting device is driven to move to a new position; as shown in Figure 4As shown, in the state of lifting the goods 10 by the device, the driving wheel 410 is separated from the ground under the action of the turnover mechanism, at this time, the bottom of the rear end of the base 100 is in contact with the ground, the weight of the goods 10 is mainly transmitted to the ground through the rear end of the base 100, the driving wheel 410 is not forced to separate from the ground, the service life of the driving wheel 410 is prolonged, and the cost is saved.

[0050] The technical features of the above embodiments can be combined in any manner. In order to make the description simple, all possible combinations of the technical features in the above embodiments are not described, but as long as the combinations of the technical features do not contradict, they should be considered as the scope of the present application.

[0051] The above embodiments only express several implementation manners of the present application, and the description is relatively specific and detailed, but it should not be understood as a limitation on the scope of the application. It should be pointed out that for ordinary skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which are all within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the appended claims.

Claims

1. A walking device, characterized by The application relates to a walking device for a forklift truck, which comprises a base with oppositely arranged front and rear ends, two load wheels rotatably arranged at the bottom of the front end of the base and in rolling contact with the ground, a turnover mechanism comprising a mounting seat and a linear driving element, one side of the mounting seat being hingedly connected to the rear end of the base through a rotating shaft, one end of the linear driving element being hingedly connected to the base and the other end being hingedly connected to the mounting seat, the linear driving element being used for driving the mounting seat to rotate around the rotating shaft to approach or move away from the ground, and a driving assembly comprising a driving wheel rotatably arranged on the mounting seat and a driving motor arranged on the mounting seat and connected to the driving wheel, the driving wheel being capable of switching between contact with the ground and separation from the ground under the action of the turnover mechanism, and the bottom of the rear end of the base being in contact with the ground when the driving wheel is separated from the ground. The linear driving element comprises an oil cylinder or an electric cylinder, the cylinder body of the oil cylinder or the electric cylinder being hingedly connected to the base, and the telescopic rod of the oil cylinder or the electric cylinder being hingedly connected to the mounting seat. The rear end of the base is provided with a first hinged seat and a second hinged seat in an up-down interval, the side of the mounting seat close to the base is provided with a third hinged seat, the upper end of the mounting seat is provided with a fourth hinged seat, and the third hinged seat is rotatably connected to the second hinged seat through the rotating shaft; one end of the linear driving element is rotatably connected to the first hinged seat, and the other end is rotatably connected to the fourth hinged seat. The base comprises a seat body and a stand, the seat body comprises a cross beam and two longitudinal beams arranged at the two ends of the cross beam respectively, the ends of the two longitudinal beams away from the cross beam form the front end of the base, and the two load wheels are rotatably arranged at the bottoms of the ends of the two longitudinal beams away from the cross beam respectively; the lower end of the stand is fixedly connected to the middle part of the cross beam, the cross beam and the stand form the rear end of the base, and the first hinged seat and the second hinged seat are arranged on the side of the stand away from the longitudinal beams. A reinforcing rib is arranged between the lower end of the stand and the cross beam. The diameter of the driving wheel is larger than that of the load wheel, and the wheel width of the driving wheel is larger than that of the load wheel.

2. The walking device of claim 1, wherein, The load wheel is made of metal, and the outer peripheral wall of the driving wheel is covered with rubber.

3. The walking device of claim 1, wherein, The application further relates to a forklift truck comprising a lifting mechanism, a fork and the walking device as claimed in any one of claims 1-7, the lifting mechanism being arranged on the base, and the fork being arranged on the lifting mechanism and capable of moving up and down under the action of the lifting mechanism.

4. The walking device of claim 3, wherein, ​ 5. The walking device of claim 4, wherein, ​ 6. The walking device of claim 1, wherein, ​ 7. The walking device of claim 1, wherein, ​ 8. A self-climbing hoisting apparatus, characterized by ​

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