Lifting device

Abstract

The utility model provides a lifting device, relates to the technical field of well equipment, and aims to solve the technical problem that the conventional lifting device cannot adapt to the mounting and withdrawing of hydraulic supports with different specifications to a certain extent. The utility model provides a lifting device. The lifting device comprises a first lifting frame, a second lifting frame and a movable lifting frame, the first lifting frame, the second lifting frame and the movable lifting frame are each of a gantry type structure and each comprise a guide section and a telescopic section which extend in the vertical direction, and the telescopic sections are arranged outside the guide sections in a sleeving mode and can stretch out and draw back in the vertical direction relative to the guide sections; the first lifting frame and the second lifting frame are oppositely arranged, the movable lifting frame is located between the first lifting frame and the second lifting frame and comprises a movable frame body and a first telescopic component, one end of the first telescopic component is connected with the first lifting frame, the other end of the first telescopic component is connected with the movable frame body, and the first telescopic component can stretch out and draw back in the horizontal direction.

Description

Technical Field

[0001] The utility model relates to the technical field of well equipment, in particular to a lifting device. Background Art

[0002] With the development and improvement of coal science and technology, its supporting production equipment and auxiliary equipment have undergone major changes. Therefore, the demand for special equipment for the installation and removal of equipment in fully mechanized mining faces has become increasingly obvious. The existing lifting equipment is only a general device with a fixed size, but for the installation and withdrawal of hydraulic supports of different specifications, the fixed-size lifting equipment is not fully competent.

[0003] Therefore, it is urgent to provide a lifting device to solve the problems existing in the prior art to a certain extent. Utility Model Content

[0004] The utility model aims to provide a lifting device, so as to solve the technical problem that the existing lifting device cannot adapt to the installation and withdrawal of hydraulic supports of different specifications to a certain extent.

[0005] The utility model provides a lifting device, including a first lifting frame, a second lifting frame and a movable lifting frame; the first lifting frame, the second lifting frame and the movable lifting frame are all gantry structures, and all include a guide section and a telescopic section extending in the vertical direction, the telescopic section is sleeved on the outside of the guide section, and can be telescoped in the vertical direction relative to the guide section; the first lifting frame and the second lifting frame are arranged opposite to each other, the movable lifting frame is located between the first lifting frame and the second lifting frame, and the movable lifting frame includes a movable frame body and a first telescopic member, one end of the first telescopic member is connected to the first lifting frame, and the other end is connected to the movable frame body, and the first telescopic member can be telescoped in the horizontal direction.

[0006] Among them, the first lifting frame, the second lifting frame and the movable lifting frame each include two oppositely arranged columns and a crossbeam connected between the two opposite columns; a longitudinal beam is also connected between the columns of the first lifting frame and the columns of the second lifting frame, and the longitudinal beam is connected to the top of the columns of the first lifting frame and the top of the columns of the second lifting frame.

[0007] Specifically, the crossbeam is composed of a first opening and closing component and a second opening and closing component, and the first opening and closing component and the second opening and closing component both include an opening and closing section and a second telescopic member, the connecting ends of the opening and closing sections are respectively rotatably connected to the corresponding columns, one end of the second telescopic member is rotatably connected to the column, and the other end is rotatably connected to the butt end of the opening and closing section, and the telescopic movement of the second telescopic member can drive the opening and closing section to rotate relative to the column so that the butt ends of the opening and closing sections are connected or separated.

[0008] Furthermore, the lifting device provided by the utility model also includes a locking assembly, which includes a third telescopic member and a locking member, one end of the third telescopic member is rotatably connected to the first opening and closing assembly, and the other end is rotatably connected to the locking member, one end of the locking member is rotatably connected to the first opening and closing assembly, and the other end is connected to or separated from the second opening and closing assembly.

[0009] Furthermore, a top supporting assembly is connected to the top of the movable lifting frame, and the top supporting assembly can be telescopic in the vertical direction.

[0010] Furthermore, the butt joint ends of the opening and closing sections are both formed with corner cuts, and the corner cuts of the two butt joint opening and closing sections form an opening and closing notch.

[0011] Among them, the lifting device provided by the utility model also includes a walking mechanism, which includes a walking track, a walking drive assembly and a positioning box, the two ends of the positioning box are respectively connected to the bottom of the column of the first lifting frame and the bottom of the column of the second lifting frame, the walking drive assembly is connected to the positioning box and is arranged corresponding to the walking track, driving the positioning box to move along the direction of the walking track; the upper surface of the positioning box is provided with a guide rail, and the bottom of the movable lifting frame is connected with a slider, and the slider is slidably connected to the guide rail.

[0012] Specifically, the travel drive assembly includes a drive motor and a drive wheel. The drive wheel is connected to the output end of the drive motor and can rotate relative to the positioning box. The drive wheel is arranged corresponding to the travel track to drive the positioning box to move along the extension direction of the travel track.

[0013] Furthermore, the travel drive assembly also includes a transmission wheel, which is connected to the output end of the drive motor, and the transmission wheel and the drive wheel are both gears or sprockets, and the transmission wheel is meshed with the drive wheel to transmit the power of the drive motor to the drive wheel; the travel track is formed with tooth grooves to enable the drive wheel to mesh with the travel track.

[0014] Furthermore, the lifting device provided by the utility model also includes a lifting chain assembly, which includes a first pulley, a second pulley, a fourth telescopic member, a lifting chain and a lifting hook; the first pulley is located at the bottom of the column and can rotate relative to the column, the second pulley is located at the end of the beam and can rotate relative to the beam, one end of the lifting chain is connected to one end of the fourth telescopic member, and the other end bypasses the first pulley and the second pulley and is connected to the lifting hook.

[0015] Compared with the prior art, the lifting device provided by the utility model has the following advantages:

[0016] The lifting device provided by the utility model comprises a first lifting frame, a second lifting frame and a movable lifting frame; the first lifting frame, the second lifting frame and the movable lifting frame are all of gantry structure, and all comprise a guide section and a telescopic section extending in a vertical direction, the telescopic section is sleeved on the outside of the guide section, and can be telescoped in a vertical direction relative to the guide section; the first lifting frame and the second lifting frame are arranged opposite to each other, the movable lifting frame is located between the first lifting frame and the second lifting frame, and the movable lifting frame comprises a movable frame body and a first telescopic member, one end of the first telescopic member is connected to the first lifting frame, and the other end is connected to the movable frame body, and the first telescopic member can be telescoped in a horizontal direction.

[0017] From this analysis, it can be seen that by making the first lifting frame, the second lifting frame and the movable lifting frame into a gantry structure, sufficient placement space can be provided for the hydraulic support to be lifted. In the present application, the first lifting frame, the second lifting frame and the movable lifting frame all include a guide section and a telescopic end, and the telescopic end can be telescoped along the extension direction of the guide section. Therefore, the lifting height of the first lifting frame, the second lifting frame and the movable lifting frame can be adjusted, so as to adapt to the height of different types of hydraulic supports.

[0018] The present application further provides a movable lifting frame arranged between the first lifting frame and the second lifting frame, and the movable lifting frame includes a movable frame and a first telescopic member, one end of the first telescopic member is connected to the first lifting frame, and the other end is connected to the movable frame, so that the movable frame can be driven to move toward or away from the second lifting frame through the horizontal extension and contraction of the first telescopic member, and then by adjusting the movable frame, the distance between the movable frame and the first lifting frame and the second lifting frame can be adjusted to adapt to the length of different models of hydraulic supports.

[0019] Therefore, the lifting device provided by the present application can adjust the dimensions in the vertical direction as needed, and can also adjust the dimensions in the horizontal direction, so that it can better adapt to the installation and withdrawal operations of hydraulic supports of different types, improve the flexibility of the lifting device, and save production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 A schematic structural diagram of a lifting device provided by an embodiment of the utility model from a first perspective;

[0022] Figure 2 A schematic structural diagram of a lifting device from a second viewing angle provided by an embodiment of the utility model;

[0023] Figure 3 A schematic structural diagram of a lifting device provided by an embodiment of the utility model in a closed state of a crossbeam from a third viewing angle;

[0024] Figure 4 A schematic structural diagram of the lifting device provided by an embodiment of the utility model in the open crossbeam state from a third viewing angle.

[0025] In the figure: 1-first lifting frame; 2-second lifting frame; 3-movable lifting frame; 301-movable frame; 302-first telescopic member; 4-column; 401-guide section; 402-telescopic section; 5-crossbeam; 501-first opening and closing assembly; 5011-opening and closing section; 5012-second telescopic member; 5013-corner cutting part; 502-second opening and closing assembly; 503-locking assembly; 5031-locking member; 5032-third telescopic member; 6-longitudinal beam; 7-supporting top assembly; 8-travel track; 9-travel driving assembly; 10-positioning box; 11-guide rail; 12-first pulley; 13-second pulley; 14-fourth telescopic member; 15-lifting chain; 16-lifting hook. DETAILED DESCRIPTION

[0026] To make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. The components of the embodiments of the present application generally described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the application claimed for protection, but merely represents the selected embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without making creative work belong to the scope of protection of the present application.

[0027] In the description of the embodiments of the present application, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or are the positions or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0028] In addition, the terms "horizontal", "vertical" and the like do not mean that the components are required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0029] In the description of the embodiments of the present application, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "setting", "installation", "connection", and "connection" should be understood in a broad sense, for example, it 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 it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0030] As used herein, the term "and / or" includes any one of the associated listed items and any combination of any two or more items.

[0031] For ease of description, spatial relative terms such as "above", "upper", "below", and "lower" may be used herein to describe the relationship of one element to another element as shown in the drawings. Such spatial relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the drawings.

[0032] The terms used herein are only used to describe various examples and are not used to limit the present disclosure. Unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. The terms "include", "comprise" and "have" list the stated features, quantities, operations, components, elements and / or their combinations that exist, but do not exclude the existence or addition of one or more other features, quantities, operations, components, elements and / or their combinations.

[0033] Variations in the shapes shown in the drawings may occur due to manufacturing techniques and / or tolerances. Therefore, the examples described herein are not limited to the specific shapes shown in the drawings but include variations in shapes that occur during manufacturing.

[0034] The features of the examples described herein may be combined in various ways that will be apparent after understanding the disclosure of the present application. In addition, although the examples described herein have various configurations, other configurations are possible as will be apparent after understanding the disclosure of the present application. In addition, the technical solutions between the various embodiments may be combined with each other, but must be based on the ability of ordinary technicians in the field to implement. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be considered that the combination of such technical solutions does not exist and is not within the scope of protection required by the present application.

[0035] like Figure 1 As shown, the utility model provides a lifting device, including a first lifting frame 1, a second lifting frame 2 and a movable lifting frame 3; the first lifting frame 1, the second lifting frame 2 and the movable lifting frame 3 are all gantry structures, and all include a guide section 401 and a telescopic section 402 extending in the vertical direction, the telescopic section 402 is sleeved on the outside of the guide section 401, and can be telescoped in the vertical direction relative to the guide section 401; the first lifting frame 1 and the second lifting frame 2 are arranged opposite to each other, the movable lifting frame 3 is located between the first lifting frame 1 and the second lifting frame 2, and the movable lifting frame 3 includes a movable frame body 301 and a first telescopic member 302, one end of the first telescopic member 302 is connected to the first lifting frame 1, and the other end is connected to the movable frame body 301, and the first telescopic member 302 can be telescoped in the horizontal direction.

[0036] Compared with the prior art, the lifting device provided by the utility model has the following advantages:

[0037] The lifting device provided by the utility model can provide sufficient placement space for the hydraulic support to be lifted by making the first lifting frame 1, the second lifting frame 2 and the movable lifting frame 3 have a gantry structure. The first lifting frame 1, the second lifting frame 2 and the movable lifting frame 3 all include a guide section 401 and a telescopic end, and the telescopic end can be telescoped along the extension direction of the guide section 401. Therefore, the lifting heights of the first lifting frame 1, the second lifting frame 2 and the movable lifting frame 3 can be adjusted, thereby being able to adapt to the heights of hydraulic supports of different models.

[0038] The present application further provides a movable lifting frame 3 disposed between the first lifting frame 1 and the second lifting frame 2, and the movable lifting frame 3 includes a movable frame body 301 and a first telescopic member 302, one end of the first telescopic member 302 is connected to the first lifting frame 1, and the other end is connected to the movable frame body 301, so that the movable frame body 301 can be driven to move toward or away from the second lifting frame 2 through the expansion and contraction of the first telescopic member 302 in the horizontal direction, and then by adjusting the movable frame body 301, the distance between the movable frame body 301 and the first lifting frame 1 and the second lifting frame 2 can be adjusted to adapt to the length of hydraulic supports of different models.

[0039] Therefore, the lifting device provided by the present application can adjust the dimensions in the vertical direction as needed, and can also adjust the dimensions in the horizontal direction, so that it can better adapt to the installation and withdrawal operations of hydraulic supports of different types, improve the flexibility of the lifting device, and save production costs.

[0040] It is understandable that in the present application, the reciprocating motion of the guide section 401 and the telescopic section 402 in the vertical direction can be achieved by providing a telescopic drive structure such as an oil cylinder or a pneumatic cylinder in the guide section 401 to achieve the telescopic action of the telescopic section 402 relative to the guide section 401 .

[0041] Accordingly, if Figure 1 Combination Figure 2 As shown, the first lifting frame 1, the second lifting frame 2 and the movable lifting frame 3 in the present application all include two oppositely arranged columns 4 and a crossbeam 5 connected between the two opposite columns 4; a longitudinal beam 6 is also connected between the columns 4 of the first lifting frame 1 and the columns 4 of the second lifting frame 2, and the longitudinal beam 6 is connected to the top of the column 4 of the first lifting frame 1 and the top of the column 4 of the second lifting frame 2.

[0042] Since the first lifting frame 1, the second lifting frame 2 and the movable lifting frame 3 in the present application are all gantry structures, they all include two oppositely arranged columns 4. A crossbeam 5 is connected between the two opposite columns 4, and the crossbeam 5 in the present application is connected to the top of the column 4, so that the stability between the two columns 4 can be guaranteed to a certain extent, and the top ends of the columns 4 can be prevented from moving in a direction close to each other, causing damage to the entire lifting frame.

[0043] Furthermore, by connecting the longitudinal beam 6 between the top of the column 4 of the first lifting frame 1 and the top of the column 4 of the second lifting frame 2, the first lifting frame 1 and the second lifting frame 2 can be connected in series to ensure the stability and structural strength of the overall structure.

[0044] It is understandable that in routine operations, the first lifting frame 1 and the second lifting frame 2 are still responsible for the main lifting operations, and when the model of the hydraulic support changes, the movable lifting frame 3 cooperates with the first lifting frame 1 or the second lifting frame 2 to cope with the lifting work of hydraulic supports of different models and sizes.

[0045] The first telescopic member 302 in the present application can be a structure such as a cylinder, an oil cylinder or a screw rod that can produce telescopic motion in a straight line. Preferably, the first telescopic member 302 in the present application adopts an oil cylinder, so as to stably realize the reciprocating motion of the movable frame 301 in the horizontal direction.

[0046] Preferably, if Figure 3 Combination Figure 4 As shown, the crossbeam 5 in the present application is composed of a first opening and closing component 501 and a second opening and closing component 502, and the first opening and closing component 501 and the second opening and closing component 502 both include an opening and closing section 5011 and a second telescopic member 5012, the connecting ends of the opening and closing sections 5011 are respectively rotatably connected to the corresponding columns 4, one end of the second telescopic member 5012 is rotatably connected to the column 4, and the other end is rotatably connected to the butt end of the opening and closing section 5011, and the telescopic movement of the second telescopic member 5012 can drive the opening and closing section 5011 to rotate relative to the column 4, so that the butt ends of the opening and closing sections 5011 are connected or separated.

[0047] The second telescopic member 5012 in the present application has the same structure as the first telescopic member 302, and both can adopt a cylinder, and the first opening and closing component 501 and the second opening and closing component 502 can be rotated by the extension and contraction of the cylinder. Accordingly, the crossbeam 5 can be moved by the rotation of the first opening and closing component 501 and the second opening and closing component 502. Figure 3 The docking form shown in FIG. Figure 4 The open state is shown in .

[0048] It is understandable that, since there will be transport vehicles or other underground equipment moving during the underground operation, when the transport vehicles or other equipment pass through the lifting device and the height exceeds the height of the above-mentioned cross beam 5, they cannot pass through, and cumbersome lifting or disassembly operations are required to achieve the same. However, the present application makes the cross beam 5 consist of a first opening and closing component 501 and a second opening and closing component 502, and drives the opening and closing section 5011 to rotate relative to the column 4 through the first telescopic member 302, so as to realize the opening or closing of the first opening and closing component 501 and the second opening and closing component 502. When it is necessary to make the equipment pass through, the opening and closing section 5011 is controlled to move closer to the longitudinal beam 6 by the contraction of the first telescopic member 302, so as to open the lifting space and make the equipment pass through. When it is necessary to perform the lifting operation, the first telescopic member 302 is extended to control the butt ends of the opening and closing section 5011 to rotate in the direction of approaching each other, and finally butt, so as to achieve the purpose of supporting the columns 4 at both ends and ensure the stability of the overall structure.

[0049] Alternatively, if Figure 3 Combination Figure 4 As shown, the lifting device provided by the utility model also includes a locking assembly 503, which includes a third telescopic member 5032 and a locking member 5031. One end of the third telescopic member 5032 is rotatably connected to the first opening and closing assembly 501, and the other end is rotatably connected to the locking member 5031. One end of the locking member 5031 is rotatably connected to the first opening and closing assembly 501, and the other end is connected to or separated from the second opening and closing assembly 502.

[0050] The third telescopic member 5032 in the present application has the same structure as the second telescopic member 5012 and the first telescopic member 302, and both adopt a cylinder, so that the third telescopic member 5032 can drive the locking member 5031 to rotate relative to the first opening and closing component 501, and specifically, the locking member 5031 rotates relative to the opening and closing section 5011 of the first opening and closing component 501, and since the locking member 5031 in the present application and the second opening and closing component 502 have a locking hook formed at the mating end, the opening and closing section 5011 of the first opening and closing component 501 and the opening and closing section 5011 of the second opening and closing component 502 can be locked through the cooperation of the locking hook and the opening and closing section 5011 of the second opening and closing component 502.

[0051] In actual operation, when the third telescopic member 5032 is extended, the above-mentioned locking hook can be moved away from the opening and closing section 5011 of the second opening and closing component 502, thereby separating from the opening and closing section 5011 of the second opening and closing component 502, thereby unlocking the opening and closing section 5011 of the first opening and closing component 501 and the opening and closing section 5011 of the second opening and closing component 502, and then the second telescopic member 5012 can drive the opening of the opening and closing section 5011, releasing the space in the middle of the column 4, and realizing the passage of the equipment.

[0052] When the third telescopic member 5032 contracts, the locking hook can move toward the opening and closing section 5011 of the second opening and closing component 502, thereby hooking with the opening and closing section 5011 of the second opening and closing component 502, thereby locking the opening and closing section 5011 of the first opening and closing component 501 and the opening and closing section 5011 of the second opening and closing component 502, thereby achieving stable support between the two columns 4.

[0053] It should be additionally explained here that, when in the supporting state, the second telescopic member 5012 is always kept in the extended state to ensure the supporting force.

[0054] Alternatively, if Figure 3 Combination Figure 4 As shown, the top of the movable lifting frame 3 in the present application is connected to a top supporting assembly 7, and the top supporting assembly 7 can be extended and retracted in the vertical direction.

[0055] When the first opening and closing assembly 501 and the second opening and closing assembly 502 are in the open state, there is no other supporting structure between the columns 4 on both sides, so the problem of tipping over easily occurs. The present application connects the top support assembly 7 to the top of the movable lifting frame 3, and the top support assembly 7 can be extended and retracted in the vertical direction. Therefore, when the first opening and closing assembly 501 and the second opening and closing assembly 502 need to be opened, the top support assembly 7 is first moved toward the top wall and abutted against the top wall, so that the columns 4 on both sides can be supported separately, thereby avoiding the problem of the columns 4 tipping over to the inside to a certain extent.

[0056] It can be understood that the top support assembly 7 in the present application includes a driving member and an abutment member. The driving member can adopt an oil cylinder, an air cylinder or other telescopic structure. One end of the abutment member is connected to the driving end of the driving member, so that through the telescopic movement of the driving member, the other end of the abutment member can abut against the top wall to achieve stable support for the column 4.

[0057] Preferably, if Figure 3 As shown, the butt ends of the opening and closing sections 5011 in the present application are both formed with corner cut portions 5013 , and the corner cut portions 5013 of the two butt-jointed opening and closing sections 5011 form an opening and closing notch.

[0058] Since the first opening and closing component 501 and the second opening and closing component 502 need to rotate to achieve the opening and closing action, the present application forms a cut corner portion 5013 on the end face of the opening and closing section 5011, and forms an opening and closing notch after the two opening and closing sections 5011 are docked, so that the opening and closing notch can provide sufficient space for the rotation of the opening and closing section 5011 of the first opening and closing component 501 and the rotation of the opening and closing section 5011 of the second opening and closing component 502, thereby achieving stable opening and docking of the opening and closing sections 5011.

[0059] Alternatively, if Figure 1 Combination Figure 2 As shown, the lifting device provided by the utility model also includes a traveling mechanism, which includes a traveling track 8, a traveling drive assembly 9 and a positioning box 10. The two ends of the positioning box 10 are respectively connected to the bottom of the column 4 of the first lifting frame 1 and the bottom of the column 4 of the second lifting frame 2. The traveling drive assembly 9 is connected to the positioning box 10 and is arranged corresponding to the traveling track 8 to drive the positioning box 10 to move along the direction of the traveling track 8; a guide rail 11 is provided on the upper surface of the positioning box 10, and a slider is connected to the bottom of the movable lifting frame 3, and the slider is slidably connected to the guide rail 11.

[0060] Since the position of the hydraulic support is not fixed, the present application can realize the movement of the entire lifting device through the further arranged walking mechanism. Accordingly, the walking track 8 can provide a basis and guide for the movement of the lifting device, and the walking drive assembly 9 can provide power for the movement of the lifting device. Furthermore, the positioning box 10 can provide a stable space and position for the setting of the column 4 and the setting of the walking drive assembly 9.

[0061] And, if Figure 1 Combination Figure 2 As shown, the positioning box 10 in the present application is parallel to the longitudinal beam 6 and is located at the bottom end of the column 4. Therefore, it can cooperate with the column 4 and the longitudinal beam 6 to form a rectangular frame structure to ensure the structural strength and operating stability of the overall lifting device.

[0062] It can be understood that the travel drive assembly 9 in the present application includes a drive motor and a drive wheel. The drive wheel is connected to the output end of the drive motor and can rotate relative to the positioning box 10. The drive wheel is arranged corresponding to the travel track 8 to drive the positioning box 10 to move along the extension direction of the travel track 8.

[0063] Preferably, the travel drive assembly 9 in the present application also includes a transmission wheel, which is connected to the output end of the drive motor. The transmission wheel and the drive wheel are both gears or sprockets, and the transmission wheel is meshed with the drive wheel to transmit the power of the drive motor to the drive wheel; the travel track 8 is formed with a tooth groove so that the drive wheel is meshed with the travel track 8.

[0064] Since the driving wheel needs to cooperate with the walking track 8, the present application can facilitate the setting position and direction of the driving motor by adding a transmission wheel between the driving motor and the driving wheel. It can be understood that the transmission wheel and the driving wheel in the present application can both adopt gears or sprockets, and preferably adopt a gear structure to realize power transmission in any direction.

[0065] It should be noted that in order to achieve power transmission in the present application, multiple transmission wheels can be used to achieve meshing with the driving wheel. In actual operation, the driving motor is connected to the transmission wheel through a reducer to achieve power transmission, and the transmission wheel drives the driving wheel to rotate by meshing with the driving wheel. Since the walking track 8 in the present application is formed with multiple tooth grooves, it can achieve meshing with the driving wheel, so that movement along the walking track 8 is achieved through the rotation of the driving wheel.

[0066] Alternatively, if Figure 1 Combination Figure 2 As shown, the lifting device provided by the utility model also includes a lifting chain 15 assembly, and the lifting chain 15 assembly includes a first pulley 12, a second pulley 13, a fourth telescopic member 14, a lifting chain 15 and a lifting hook 16; the first pulley 12 is located at the bottom of the column 4, and can rotate relative to the column 4, the second pulley 13 is located at the end of the beam 5, and can rotate relative to the beam 5, one end of the lifting chain 15 is connected to one end of the fourth telescopic member 14, and the other end bypasses the first pulley 12 and the second pulley 13 and is connected to the lifting hook 16.

[0067] The fourth telescopic member 14 in the present application has the same structure as the third telescopic member 5032 and the second telescopic member 5012, and all adopt a cylinder structure. Since one end of the lifting chain 15 in the present application is connected to the fourth telescopic member 14, the lifting chain 15 can be pulled or released through the extension and contraction of the fourth telescopic member 14, thereby driving the lifting hook 16 connected to the other end of the lifting chain 15 to rise or fall, thereby realizing the lifting action with the lifting member.

[0068] By providing the first pulley 12 and the second pulley 13, on the one hand, the movement of the lifting chain 15 can be limited to ensure the running track, and on the other hand, it can also save more labor and energy consumed in the operation.

[0069] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A lifting device, characterized in that: It includes a first lifting frame, a second lifting frame and a movable lifting frame; The first lifting frame, the second lifting frame and the movable lifting frame are all gantry structures, and all include a guide section and a telescopic section extending in the vertical direction, the telescopic section is sleeved on the outside of the guide section, and can be telescoped in the vertical direction relative to the guide section; The first lifting frame and the second lifting frame are arranged opposite to each other, the movable lifting frame is located between the first lifting frame and the second lifting frame, and the movable lifting frame includes a movable frame body and a first telescopic member, one end of the first telescopic member is connected to the first lifting frame, and the other end is connected to the movable frame, and the first telescopic member can be telescoped in the horizontal direction.

2. The lifting device according to claim 1, characterized in that: The first lifting frame, the second lifting frame and the movable lifting frame each include two oppositely arranged upright posts and a crossbeam connected between the two opposite upright posts; A longitudinal beam is also connected between the columns of the first lifting frame and the columns of the second lifting frame, and the longitudinal beam is connected to the top of the columns of the first lifting frame and the top of the columns of the second lifting frame.

3. The lifting device according to claim 2, characterized in that: The crossbeam is composed of a first opening and closing component and a second opening and closing component, and the first opening and closing component and the second opening and closing component both include an opening and closing section and a second telescopic member, the connecting ends of the opening and closing sections are respectively rotatably connected to the corresponding columns, one end of the second telescopic member is rotatably connected to the column, and the other end is rotatably connected to the butt end of the opening and closing section, and the telescopic movement of the second telescopic member can drive the opening and closing section to rotate relative to the column so that the butt ends of the opening and closing sections can be connected or separated.

4. The lifting device according to claim 3, characterized in that: It also includes a locking assembly, which includes a third telescopic member and a locking member, one end of the third telescopic member is rotatably connected to the first opening and closing assembly, and the other end is rotatably connected to the locking member, one end of the locking member is rotatably connected to the first opening and closing assembly, and the other end is connected to or separated from the second opening and closing assembly.

5. The lifting device according to claim 3, characterized in that: The top of the movable lifting frame is connected with a top supporting assembly, and the top supporting assembly can be telescoped in the vertical direction.

6. The lifting device according to claim 3, characterized in that: The butt joint ends of the opening and closing sections are both formed with corner cuts, and the corner cuts of the two butt joint opening and closing sections form an opening and closing notch.

7. The lifting device according to claim 3, characterized in that: It also includes a walking mechanism, which includes a walking track, a walking drive assembly and a positioning box, the two ends of the positioning box are respectively connected to the bottom of the column of the first lifting frame and the bottom of the column of the second lifting frame, the walking drive assembly is connected to the positioning box and is arranged corresponding to the walking track to drive the positioning box to move along the direction of the walking track; A guide rail is arranged on the upper surface of the positioning box, and a sliding block is connected to the bottom of the movable lifting frame, and the sliding block is slidably connected to the guide rail.

8. The lifting device according to claim 7, characterized in that: The travel drive assembly includes a drive motor and a drive wheel. The drive wheel is connected to the output end of the drive motor and can rotate relative to the positioning box. The drive wheel is arranged corresponding to the travel track to drive the positioning box to move along the extension direction of the travel track.

9. The lifting device according to claim 8, characterized in that: The travel drive assembly also includes a transmission wheel, which is connected to the output end of the drive motor, and the transmission wheel and the drive wheel are both gears or sprockets, and the transmission wheel is meshed with the drive wheel to transmit the power of the drive motor to the drive wheel; The travel track is formed with tooth grooves so that the driving wheel is meshed with the travel track.

10. The lifting device according to claim 2, characterized in that: Also included is a lifting chain assembly, the lifting chain assembly including a first pulley, a second pulley, a fourth telescopic member, a lifting chain and a lifting hook; The first pulley is located at the bottom of the column and can rotate relative to the column. The second pulley is located at the end of the beam and can rotate relative to the beam. One end of the lifting chain is connected to one end of the fourth telescopic member, and the other end bypasses the first pulley and the second pulley and is connected to the lifting hook.

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