Lifting mechanism for assembly type maintenance platform

Abstract

The utility model provides a lifting mechanism for an assembly type maintenance platform. The lifting mechanism comprises a supporting frame, an upper working platform, a lower working platform and a lifting assembly. The upper operation platform is fixedly installed on one side of the upper end of the supporting frame, and lifting assemblies are arranged at the two ends of the upper operation platform correspondingly. The two lifting assemblies are connected with the lower working platform below through transmission lead screw bolts arranged downwards on the lifting assemblies correspondingly. The lower working platform is installed on the upper working platform through the lifting assembly, the vertical lifting action of the lower working platform can be achieved, and the lifting platform has the advantages of being high in lifting speed, good in lifting stability, easy to operate and the like. The lifting mechanism adopts a motor and a speed reducer, so that stable and efficient power output can be provided; the lifting mechanism is simple in structure, low in manufacturing cost, convenient to maintain, adjustable in lifting height and suitable for various special scenes.

Description

Technical Field

[0001] The utility model relates to the field of construction and engineering operation equipment, in particular to a lifting mechanism for an assembled maintenance platform. Background Art

[0002] In traditional railway vehicle maintenance operations, the work platform needs to meet multiple functional requirements, such as carrying operating equipment, ensuring operational safety, and providing a comfortable working environment. In order to adapt to different operational requirements, the work platform is generally equipped with a lifting mechanism. The traditional lifting mechanism is mainly composed of a walking mechanism, a hydraulic mechanism, an electric control mechanism, and a supporting mechanism. These mechanisms work together to enable the lift to complete the task of vertical lifting.

[0003] However, the main disadvantages of traditional lifting mechanisms are that they are usually complex, have high manufacturing costs, are difficult to maintain, and have limited lifting heights, which cannot meet the needs of some special scenarios. In addition, during the lifting process, the platform of the traditional lifting mechanism has poor stability and is prone to shaking, posing a safety hazard to the operator. Therefore, it is necessary to improve the existing lifting mechanism. Utility Model Content

[0004] The purpose of the utility model is to provide a lifting mechanism for an assembled maintenance platform in view of the problems of poor lifting stability and complicated operation of the existing maintenance platform.

[0005] The utility model adopts the following technical solutions to solve the above technical problems:

[0006] A lifting mechanism for an assembled maintenance platform comprises a support frame, an upper working platform, a lower working platform and a lifting assembly, wherein:

[0007] The upper working platform is fixedly installed at one side of the upper end of the supporting frame, and the lifting components are respectively arranged at both ends thereof; the two lifting components are respectively connected to the lower working platform below through transmission screw bolts arranged downwardly on the upper parts.

[0008] Preferably, the support frame comprises a support column, a support frame, a first connecting beam, a second connecting beam, an upper platform bracket and a lower platform bracket, wherein:

[0009] There are at least two supporting columns, which are arranged at intervals on the left and right and installed vertically on the construction site;

[0010] There are at least two support frames, which are arranged vertically on the left and right sides at the outer sides of the corresponding support columns;

[0011] The first connecting crossbeam and the second connecting crossbeam are at least two groups, which are arranged in an upper and lower interval, and the two ends thereof are respectively connected to the corresponding supporting columns and supporting frames;

[0012] The upper platform bracket and the lower platform bracket are at least two groups, which are respectively installed on the outer side walls of the upper and lower ends of the supporting frame, and are used to install the upper working platform and the lower working platform respectively.

[0013] More preferably, the supporting frame is arranged overhead, and the middle part and the lower end of the inner wall thereof are fixedly mounted on the outer wall of the lower middle part of the supporting column by using the first connecting beam and the second connecting beam respectively.

[0014] More preferably, screw mounting plates extending inward are respectively provided at the bottom of both ends of the lower platform bracket, and each of the screw mounting plates is connected to the corresponding lower end of the transmission screw through a bearing provided thereon.

[0015] More preferably, both ends of the upper working platform are fixedly mounted on the top ends of the two upper platform brackets; and both ends of the lower working platform are movably mounted between the two lower platform brackets.

[0016] Preferably, the upper working platform comprises an upper supporting beam bottom beam, an upper supporting connecting beam, an upper bottom plate and an upper panel, wherein:

[0017] The upper support beam bottom beam and the upper support connecting beam are both two, connected end to end in sequence to form a rectangular upper platform frame structure;

[0018] The upper base plate and the upper panel are respectively fixedly mounted at the bottom and top positions of the upper platform frame structure to form an equipment accommodating space for installing the lifting assembly therebetween.

[0019] Preferably, the lower working platform comprises a lower support beam bottom beam, a lower support connecting beam and a lower panel, wherein:

[0020] The bottom beam of the lower support beam and the lower support connecting beam are both two, connected end to end in sequence to form a rectangular lower platform frame structure;

[0021] The lower panel is fixedly mounted at the top position of the lower platform frame structure.

[0022] More preferably, the upper working platform and the lower working platform are at least two groups, which are spliced ​​left and right and installed between the supporting frames of two adjacent supporting frames.

[0023] Preferably, the lifting assembly includes a driving motor, a reducer, a gear commutator, a transmission screw and a threaded sleeve, wherein:

[0024] The output shaft of the driving motor and the reducer, as well as the output shaft of the reducer and the gear commutator are both connected via a coupling.

[0025] The output shaft on the gear commutator is arranged vertically downward, and is fixedly connected to the upper end of the vertically arranged transmission screw by a coupling;

[0026] The lower end of the transmission screw passes through the threaded sleeve and is installed on the screw mounting plate of the support frame through a bearing;

[0027] The threaded sleeve is fixedly mounted on the lower supporting connecting beams at both ends of the lower working platform and is threadedly connected to the transmission screw.

[0028] More preferably, the reducer is a double-axis output reducer, both ends of which are connected to the transmission screw through the gear commutator.

[0029] The utility model adopts the above technical solution, and compared with the prior art, has the following technical effects:

[0030] The utility model is a lifting mechanism for an assembled maintenance platform. The lower working platform is installed on the upper working platform by using a lifting component, which can realize the up and down lifting actions of the lower working platform. It has the advantages of fast lifting speed, good lifting stability, and simple operation. The lifting mechanism adopts a motor and a reducer, which can provide stable and efficient power output. The lifting mechanism has a simple structure, low manufacturing cost, easy maintenance, and adjustable lifting height, and is suitable for various special scenes. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a three-dimensional structural schematic diagram of a lifting mechanism for an assembled maintenance platform of the utility model;

[0032] Figure 2 It is a partial enlarged structural schematic diagram of part A in a lifting mechanism for an assembled maintenance platform of the utility model;

[0033] Figure 3 It is a partial enlarged structural schematic diagram of part B in a lifting mechanism for an assembled maintenance platform of the utility model;

[0034] Figure 4 It is a side structural schematic diagram of a lifting mechanism for an assembled maintenance platform of the utility model;

[0035] Figure 5 The utility model is a schematic diagram of the top view of the lifting component in the lifting mechanism of the assembled maintenance platform. DETAILED DESCRIPTION

[0036] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0037] Based on the embodiments of the present utility model, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present utility model.

[0038] In some embodiments, Figure 1 and Figure 4 As shown, a lifting mechanism for an assembled maintenance platform is provided, which mainly includes a support frame 100 and an upper working platform 200, a lower working platform 300 and a lifting assembly 400 installed on the support frame 100. The upper working platform 200 and the lower working platform 300 are arranged up and down.

[0039] Specifically, the upper working platform 200 is fixedly installed at one side of the upper end of the supporting frame 100, and the lifting components 400 are respectively arranged at both ends; the two lifting components 400 are respectively bolted to the lower working platform 300 below through the transmission screw rods 405 arranged downward on the upper ends. In other words, the lower working platform 300 is installed on the upper working platform 200 through the lifting components 400 at both ends, and the upper working platform 200 can be driven to achieve up and down lifting by starting the lifting components 400.

[0040] In some of the embodiments, Figure 1 and Figure 4 As shown, the support frame 100 includes a support column 101, a support frame 102, a first connecting beam 103, a second connecting beam 104, an upper platform bracket 105, and a lower platform bracket 106. The support column 101, the support frame 102, the first connecting beam 103, the second connecting beam 104, the upper platform bracket 105, and the lower platform bracket 106 are all made of I-beam structure, and are detachably connected to each other by angle plates and bolts, and have sufficient structural strength and support strength, and can meet the requirements of installing and supporting the upper working platform 200, the lower working platform 300, and the lifting assembly 400.

[0041] Specifically, there are at least two support columns 101, which are arranged at intervals on the left and right and installed vertically on the construction site as the main support columns. There are at least two support frames 102, which are arranged vertically on the left and right sides at the outer sides of the corresponding support columns 101, as the mounting frames of the upper working platform 200. The support columns 101 and the support frames 102 are connected to form an integrated structure by the first connecting beam 103 and the second connecting beam 104 arranged at intervals on the upper and lower sides, forming the overall structure of the support frame 100.

[0042] In order to achieve the installation limit of the upper working platform 200 and the lower working platform 300, the upper platform bracket 105 is at least two groups, which are respectively installed on the outer side wall of the upper end of the supporting frame 102, and are used to fix the upper working platform 200. Correspondingly, the lower platform bracket 106 is at least two groups, which are respectively installed on the outer side wall of the lower end of the supporting frame 102, and are used to limit the installation of the lower working platform 300.

[0043] Specifically, the two ends of the upper working platform 200 are fixedly mounted on the top of the two upper platform brackets 105; and the two ends of the lower working platform 300 are movably mounted between the two lower platform brackets 106, and the lower working platform 300 is movably mounted between the left and right lower platform brackets 106 and can be lifted up and down, while the upper working platform 200 is fixedly mounted.

[0044] It is worth noting that Figure 1 and Figure 4 As shown, the support frame 102 is arranged in an overhead manner relative to the support column 101 fixedly installed on the foundation, and the middle and lower ends of the inner walls thereof are fixedly installed on the outer walls of the middle and lower parts of the support column 101 by using the first connecting beam 103 and the second connecting beam 104 respectively, so as to realize the installation and fixation of the support frame 102.

[0045] In addition, in order to realize the limited installation of the transmission screw 405 on the lifting assembly 400, screw mounting plates 107 extending inward are respectively arranged at the bottom of both ends of the lower platform bracket 106, and each of the screw mounting plates 107 is connected to the lower end of the corresponding transmission screw 405 through the bearings arranged thereon. The transmission screw 405 is driven by the driving motor 401 to rotate forward and reverse, so as to synchronously drive the lower working platform 300 to rise and fall by using the threaded sleeve 406 sleeved thereon.

[0046] In some of the embodiments, Figure 1 and Figure 2As shown, the upper working platform 200 mainly includes an upper support beam bottom beam 201, an upper support connecting beam 202, an upper base plate 203 and an upper panel 204. The upper support beam bottom beam 201 and the upper support connecting beam 202 are made of I-beams, and the upper base plate 203 and the upper panel 204 are made of steel plate structures, which have sufficient structural strength and supporting strength. Specifically, the upper support beam bottom beam 201 and the upper support connecting beam 202 are both two, which are connected end to end in sequence to form a rectangular upper platform frame structure. The upper base plate 203 and the upper panel 204 are respectively fixedly installed at the bottom and top positions of the upper platform frame structure to form an equipment accommodating space for installing the lifting assembly 400 therebetween, and a detachable cover is provided on the top of the equipment accommodating space to facilitate the installation and maintenance of the lifting assembly 400. As needed, the upper panel 204 can adopt an anti-slip plate.

[0047] In some of the embodiments, Figure 1 and Figure 3 As shown, the lower working platform 300 mainly includes a lower supporting beam bottom beam 301, a lower supporting connecting beam 302 and a lower panel 303. The lower supporting beam bottom beam 301 and the lower supporting connecting beam 302 are made of I-beams, and the lower panel 303 is made of a steel plate structure, which has sufficient structural strength and supporting strength.

[0048] Specifically, the lower support beam bottom beam 301 and the lower support connecting beam 302 are both two, connected end to end in sequence to form a rectangular lower platform frame structure. The lower panel 303 is fixedly installed at the top position of the lower platform frame structure. The lower panel 303 can be an anti-slip plate as needed.

[0049] As some preferred embodiments, the upper working platform 200 and the lower working platform 300 are at least two groups, which are spliced ​​left and right and installed between the supporting frames 102 of two adjacent supporting frames 100. That is to say, two adjacent groups of upper working platforms 200 and lower working platforms 300 share a supporting column 101 and a supporting frame 102, and the adjacent upper working platforms 200 and lower working platforms 300 are connected to form a working corridor.

[0050] In some of the embodiments, Figure 1 and Figure 2 and Figure 5 As shown, as a driving mechanism for realizing the up and down lifting of the lower working platform 300, the lifting assembly 400 is mainly composed of a driving motor 401, a reducer 403, a gear commutator 404, a transmission screw 405 and a threaded sleeve 406, which are sequentially connected to each other and assembled into an integrated structure. The driving motor 401 is used to provide lifting power;

[0051] Specifically, the output shaft of the drive motor 401 and the reducer 403, as well as the output shaft of the reducer 403 and the gear commutator 404 are both connected by a coupling 402. The lifting mechanism uses the drive motor 401 and the reducer 403 to provide stable and efficient power output.

[0052] In order to transfer the power outputted horizontally by the reducer 403 to the vertically arranged transmission screw 405, the purpose of power output reversal is achieved. A gear commutator 404 is used, and the output shaft on the gear commutator 404 is arranged vertically downward, and the output shaft is fixedly connected to the upper end of the vertically arranged transmission screw 405 by a coupling. The gear commutator 404 is used to achieve power reversal, so as to drive the vertically arranged transmission screw 405 to rotate around itself.

[0053] like Figure 1 and Figure 2 As shown, in order to realize the up and down lifting of the lower working platform 300 by using the rotating transmission screw 405, the lower end of the transmission screw 405 is installed on the screw mounting plate 107 of the support frame 100 through the threaded sleeve 406 through the bearing; the threaded sleeve 406 is fixedly installed on the lower support connecting beam 302 at both ends of the lower working platform 300, and is threadedly connected with the transmission screw 405. By controlling the transmission screw 405 to rotate clockwise or counterclockwise, the threaded sleeve 406 is used to synchronously drive the lower working platform 300 to rise or fall.

[0054] Specifically, in order to ensure the stability of the up and down lifting action of the lower working platform 300, the reducer 403 adopts a double-axis output reducer, and its two ends are respectively connected to the transmission screw 405 through the gear commutator 404. In other words, a set of driving motor 401 and reducer 403 is equipped with two sets of gear commutators 404, transmission screw 405 and threaded sleeve 406 to achieve dual output of power.

[0055] Two sets of transmission screw rods 405 are installed at both ends of the lower working platform 300 at intervals on the left and right, which not only plays the role of power transmission to realize up and down lifting, but also the four transmission screw rods 405 are connected to the upper working platform 200 at four corners, which effectively ensures the stability of the limited lower working platform 300 and prevents it from shaking left and right during use.

[0056] In addition, in some of the embodiments, the lifting mechanism for the assembled maintenance platform further includes a PLC control system and a position sensor installed on the support frame 100 for detecting the lifting height of the lower working platform 300. The PLC control system is connected to the drive motor 401 and the position sensor, and is used to control the power output of the drive motor 401 and the motion state of the lower working platform 300. The PLC control system controls the speed and direction of the drive motor 401 according to the feedback signal of the position sensor, thereby controlling the motion speed and direction of the lower working platform 300.

[0057] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change;

[0058] Secondly, the drawings of the embodiments disclosed in the present utility model only involve structures related to the embodiments disclosed in the present utility model, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;

[0059] Finally, 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 mechanism for an assembled maintenance platform, characterized in that: It includes a support frame, an upper working platform, a lower working platform and a lifting assembly, wherein: The upper working platform is fixedly installed at one side of the upper end of the supporting frame, and the lifting components are respectively arranged at both ends; the two lifting components are respectively connected to the lower working platform below through the transmission screw bolts arranged downwards on the upper parts; The lifting assembly includes a driving motor, a reducer, a gear commutator, a transmission screw and a threaded sleeve, wherein: The output shaft of the driving motor and the reducer, as well as the output shaft of the reducer and the gear commutator are both connected via a coupling. The output shaft on the gear commutator is arranged vertically downward, and is fixedly connected to the upper end of the vertically arranged transmission screw by a coupling; The lower end of the transmission screw passes through the threaded sleeve and is installed on the screw mounting plate of the support frame through a bearing; The threaded sleeve is fixedly mounted on the lower supporting connecting beams at both ends of the lower working platform and is threadedly connected to the transmission screw.

2. The lifting mechanism for the assembled maintenance platform according to claim 1, characterized in that: The support frame includes a support column, a support frame, a first connecting beam, a second connecting beam, an upper platform bracket and a lower platform bracket, wherein: There are at least two supporting columns, which are arranged at intervals on the left and right and installed vertically on the construction site; There are at least two support frames, which are arranged vertically on the left and right sides at the outer sides of the corresponding support columns; The first connecting crossbeam and the second connecting crossbeam are at least two groups, which are arranged in an upper and lower interval, and the two ends thereof are respectively connected to the corresponding supporting columns and supporting frames; The upper platform bracket and the lower platform bracket are at least two groups, which are respectively installed on the outer side walls of the upper and lower ends of the supporting frame, and are used to install the upper working platform and the lower working platform respectively.

3. The lifting mechanism for the assembled maintenance platform according to claim 2, characterized in that: The support frame is arranged overhead, and the middle part and the lower end of the inner wall thereof are fixedly mounted on the outer wall of the lower middle part of the support column by using the first connecting cross beam and the second connecting cross beam respectively.

4. The lifting mechanism for the assembled maintenance platform according to claim 2, characterized in that: The bottoms of both ends of the lower platform bracket are respectively provided with screw mounting plates extending inwards, and each of the screw mounting plates is connected to the corresponding lower end of the transmission screw through a bearing arranged thereon.

5. The lifting mechanism for the assembled maintenance platform according to claim 2, characterized in that: The two ends of the upper working platform are fixedly mounted on the top ends of the two upper platform brackets; and the two ends of the lower working platform are movably mounted between the two lower platform brackets.

6. The lifting mechanism for the assembled maintenance platform according to claim 1, characterized in that: The upper working platform comprises an upper supporting beam bottom beam, an upper supporting connecting beam, an upper bottom plate and an upper panel, wherein: The upper support beam bottom beam and the upper support connecting beam are both two, connected end to end in sequence to form a rectangular upper platform frame structure; The upper base plate and the upper panel are respectively fixedly mounted at the bottom and top positions of the upper platform frame structure to form an equipment accommodating space for installing the lifting assembly therebetween.

7. The lifting mechanism for an assembled maintenance platform according to claim 1, characterized in that: The lower working platform comprises a lower supporting beam bottom beam, a lower supporting connecting beam and a lower panel, wherein: The bottom beam of the lower support beam and the lower support connecting beam are both two, connected end to end in sequence to form a rectangular lower platform frame structure; The lower panel is fixedly mounted at the top position of the lower platform frame structure.

8. The lifting mechanism for the assembled maintenance platform according to claim 6, characterized in that: The upper working platform and the lower working platform are at least two groups, which are spliced ​​left and right and installed between the supporting frames of two adjacent supporting frames.

9. The lifting mechanism for an assembled maintenance platform according to claim 1, characterized in that: The reducer adopts a double-axis output reducer, and both ends of the reducer are connected to the transmission screw through the gear commutator.

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