阅读说明：本技术 一种可移动工作平台 (Movable working platform ) 是由 崔晓双 谭可可 常正阳 任洪鹏 单海超 张清林 王永涛 严磊 肖星 王瑞亨 张俊 于 2021-08-18 设计创作，主要内容包括：本发明公开了一种可移动工作平台,包括框架平台、滚轮、驱动轮组、伸缩支腿总成、导向槽及行走轨道；导向槽设置在基坑侧边,行走轨道设置在收回状态辅助位处的坑底上；驱动轮组、伸缩支腿总成设置均在框架平台底面,框架平台侧边设有滚轮；日常存放时,工作平台处于收回状态辅助位,伸缩支腿总成收回在框架平台内,且与坑底存在间隙；作业前,驱动轮组沿行走轨道滑动,滚轮沿导向槽滑动,工作平台移动到伸出状态工作位后,由伸缩支腿总成提供支撑；工作平台表面高度始终与基坑上表面齐平。本发明承载能力高,满足特种车作业需要。(The invention discloses a movable working platform which comprises a frame platform, rollers, a driving wheel set, a telescopic supporting leg assembly, a guide groove and a walking track, wherein the rollers are arranged on the frame platform; the guide groove is arranged on the side edge of the foundation pit, and the walking track is arranged on the pit bottom at the auxiliary position in the retraction state; the driving wheel set and the telescopic leg assembly are arranged on the bottom surface of the frame platform, and the side edge of the frame platform is provided with a roller; during daily storage, the working platform is in a retraction state auxiliary position, the telescopic supporting leg assembly is retracted in the frame platform, and a gap is formed between the telescopic supporting leg assembly and the pit bottom; before operation, the driving wheel set slides along the walking track, the roller wheel slides along the guide groove, and the working platform is supported by the telescopic supporting leg assembly after moving to the extended working position; the surface height of the working platform is always flush with the upper surface of the foundation pit. The invention has high bearing capacity and meets the operation requirement of special vehicles.)

1. A movable working platform is characterized by comprising a frame platform, rollers, a driving wheel set, a telescopic leg assembly, a guide groove and a walking track;

dividing the foundation pit into a retracted state auxiliary position and an extended state working position; the shallow part of the foundation pit is a retracted auxiliary position, and the deep part of the foundation pit is an extended working position; the guide groove is arranged on the side edge of the foundation pit, and the walking track is arranged on the pit bottom at the auxiliary position in the retraction state;

the driving wheel set and the telescopic leg assembly are arranged on the bottom surface of the frame platform, and the side edge of the frame platform is provided with a roller; during daily storage, the working platform is in a retraction state auxiliary position, the telescopic supporting leg assembly is retracted in the frame platform, and a gap is formed between the telescopic supporting leg assembly and the pit bottom; before operation, the driving wheel set slides along the walking track, the roller wheel slides along the guide groove, and the working platform is supported by the telescopic supporting leg assembly after moving to the extended working position; the surface height of the working platform is always flush with the upper surface of the foundation pit.

2. The movable work platform of claim 1, wherein the frame platform is a split structure formed by first, second and third frame platform units connected in series by bolts.

3. The movable work platform of claim 1, wherein the rollers comprise a flat roller, a vertical roller; the flat rollers carry vertical loads and the vertical rollers carry horizontal loads.

4. The movable work platform of claim 2, wherein the drive wheel set comprises a main drive wheel, a driven wheel;

the main driving wheel is arranged on the bottom surface of the first frame platform unit, the driven wheel is arranged on the bottom surfaces of the second frame platform unit and the third frame platform unit, and the main driving wheel and the driven wheel are symmetrically arranged along the central axis of the frame platform.

5. A movable work platform as claimed in claim 1, wherein the telescopic leg assembly comprises a main leg, an auxiliary leg, both in the form of scissor legs, and driven by an electric cylinder.

6. The movable work platform of claim 5, wherein the auxiliary legs are provided with rollers at the bottom; when the working platform moves back and forth between the retracted state auxiliary position and the extended state working position, the auxiliary supporting legs extend out and slide along the pit bottom of the extended state working position.

7. The movable work platform of claim 5, wherein four primary legs are used and two secondary legs are used; two main supporting legs are arranged on the second frame platform unit, one main supporting leg is fixed in the middle, and the other main supporting leg is fixed on the side edge; the other two main supporting legs are arranged on the third frame platform unit, and the fixing positions of the two main supporting legs are consistent with those of the two main supporting legs on the second platform unit;

the guide groove is arranged on one side of the foundation pit and is far away from the fixed side edge of the main supporting leg.

8. The movable work platform of claim 1, wherein the upper surface of the guide slot is provided with a latch hole for fixing the work platform in the retracted state auxiliary position and in the extended state after being moved out of position; the two ends of the guide groove are provided with roller limiting blocks for limiting the working platform to move out and retract in place.

Technical Field

The invention relates to the technical field of road operation facilities, in particular to a movable working platform.

Background

For a special working environment with a foundation pit with a certain area, a height difference obstacle exists in the depth direction of the foundation pit, and a special vehicle needs to drive into a temporary working platform above the foundation pit for operation. The operation platform directly covered on the surface of the foundation pit and without a supporting structure is adopted, the bearing capacity is insufficient, and the automation degree of moving covering is low for the operation platform with the supporting structure at the bottom and without a moving device.

Disclosure of Invention

In view of this, the invention provides a movable working platform which has high bearing capacity and meets the operation requirement of special vehicles.

The technical scheme adopted by the invention is as follows:

a movable working platform comprises a frame platform, rollers, driving wheel sets, telescopic leg assemblies, guide grooves and a walking track;

dividing the foundation pit into a retracted state auxiliary position and an extended state working position; the shallow part of the foundation pit is a retracted auxiliary position, and the deep part of the foundation pit is an extended working position; the guide groove is arranged on the side edge of the foundation pit, and the walking track is arranged on the pit bottom at the auxiliary position in the retraction state;

the driving wheel set and the telescopic leg assembly are arranged on the bottom surface of the frame platform, and the side edge of the frame platform is provided with a roller; during daily storage, the working platform is in a retraction state auxiliary position, the telescopic supporting leg assembly is retracted in the frame platform, and a gap is formed between the telescopic supporting leg assembly and the pit bottom; before operation, the driving wheel set slides along the walking track, the roller wheel slides along the guide groove, and the working platform is supported by the telescopic supporting leg assembly after moving to the extended working position; the surface height of the working platform is always flush with the upper surface of the foundation pit.

Furthermore, the frame platform is of a split structure and is formed by sequentially connecting a first frame platform unit, a second frame platform unit and a third frame platform unit through bolts.

Further, the rollers comprise a flat roller and a vertical roller; the flat rollers carry vertical loads and the vertical rollers carry horizontal loads.

Further, the driving wheel set comprises a main driving wheel and a driven wheel;

the main driving wheel is arranged on the bottom surface of the first frame platform unit, the driven wheel is arranged on the bottom surfaces of the second frame platform unit and the third frame platform unit, and the main driving wheel and the driven wheel are symmetrically arranged along the central axis of the frame platform.

Furthermore, the telescopic supporting leg assembly comprises a main supporting leg and an auxiliary supporting leg which are in a scissor fork supporting leg form and are driven by an electric cylinder.

Further, rollers are arranged at the bottoms of the auxiliary supporting legs; when the working platform moves back and forth between the retracted state auxiliary position and the extended state working position, the auxiliary supporting legs extend out and slide along the pit bottom of the extended state working position.

Furthermore, the number of the main supporting legs is four, and the number of the auxiliary supporting legs is two; two main supporting legs are arranged on the second frame platform unit, one main supporting leg is fixed in the middle, and the other main supporting leg is fixed on the side edge; the other two main supporting legs are arranged on the third frame platform unit, and the fixing positions of the two main supporting legs are consistent with those of the two main supporting legs on the second platform unit;

the guide groove is arranged on one side of the foundation pit and is far away from the fixed side edge of the main supporting leg.

Furthermore, the upper surface of the guide groove is provided with a bolt hole for fixing the working platform in a retraction state auxiliary position and in an extension state after the working platform is moved out in place; the two ends of the guide groove are provided with roller limiting blocks for limiting the working platform to move out and retract in place.

Has the advantages that:

1. the telescopic support leg assembly is utilized to overcome the height difference obstacle of the foundation pit, the telescopic support leg assembly slides to a specific position of a deeper foundation pit, and the support leg is supported on the bottom plane of the foundation pit, so that the platform has higher bearing capacity, and the operation requirement of a special vehicle is met. The traveling rail flat car type direct driving mode is adopted, the reciprocating sliding between the working position and the auxiliary position is realized, and the bearing operation requirement of a certain special vehicle is met.

2. The telescopic supporting leg assembly adopts a scissor fork supporting leg form and is driven by the electric cylinder, so that the structure is simple, and automatic operation is realized.

3. The layout form of the guide groove and the main supporting leg simplifies the structure of the working platform, and simultaneously ensures the stress balance of the working platform when the working platform bears the load together with the arrangement states of the auxiliary supporting leg and the main driving wheel.

Drawings

Fig. 1(a) and 1(b) are a front view and a top view of the foundation pit retracted auxiliary position and the foundation pit extended working position, respectively;

FIG. 2 is a schematic view of the working position of the mobile platform in an extended state and the working condition of a special vehicle according to the present invention;

fig. 3(a) and 3(b) are a front view and a top view of the mobile platform in the retracted auxiliary position, respectively;

fig. 4(a) and 4(b) are schematic diagrams of the retracted and extended states of the main leg respectively;

fig. 5(a) and 5(b) are schematic diagrams of the retracted and extended states of the auxiliary leg, respectively;

FIG. 6 is a schematic view of the main drive wheel;

fig. 7 is a schematic view of the driven wheel structure.

Wherein, 1-a retraction state auxiliary position, 2-an extension state working position, 3-a special vehicle, A-a mobile working platform, B-a driving wheel set, C-a main supporting leg, D-a first frame platform unit, E-a second frame platform unit, F-a third frame platform unit, a G-guide groove, an H-a flat roller, an I-a vertical roller, a J-an auxiliary supporting leg, a K-a driven wheel, an M-bolt, an N-a main driving wheel, a CA-a lower slideway I, a CB-an inner arm I, a CC-an outer arm I, a CD-an upper slideway I, a CE-an electric cylinder I, a JA-an electric cylinder II, a JB-an upper slideway II, a JD-an outer arm II, a JE-an inner arm II, a JF-a roller I, an NA-electric speed reduction integrated machine, NB-connecting flange, NC-roller II, ND-walking track, KA-pin shaft and KB-roller III.

Detailed Description

The invention is described in detail below by way of example with reference to the accompanying drawings.

As shown in fig. 1(a), 1(b) and 2, the foundation pit is divided into a retracted auxiliary position 1 and an extended working position 2; the shallow part of the foundation pit is a withdrawing state auxiliary position 1, and the deep part of the foundation pit is an extending state working position 2. Before the special vehicle 3 works, the movable working platform A is moved out from the recovery state auxiliary position 1 to the foundation pit extension state working position 2 to provide a working platform. The embodiment provides a movable working platform, as shown in fig. 3, including a frame platform, a flat roller H, a vertical roller I, a driving wheel set B, a telescopic leg assembly, a guide groove G, and a walking track.

The guide groove G is used for bearing and guiding, is arranged on one side of the foundation pit and is far away from the fixed side edge of the main supporting leg C. The upper surface of the guide groove G is provided with a bolt hole for fixing the movable working platform A in the retraction state auxiliary position 1 and in the extension state working position 2 after being moved out in place; and roller limiting blocks are arranged at two ends of the guide groove G and used for limiting the moving of the working platform A in place and the withdrawing of the working platform A in place. The walking track is arranged on the pit bottom at the auxiliary position 1 in the retraction state and is used for being in sliding fit with the main driving wheel N and the driven wheel K.

The frame platform is of a split structure and is formed by sequentially connecting a first frame platform unit D, a second frame platform unit E and a third frame platform unit F through bolts M. The frame platform and the side of the guide groove G in sliding fit are provided with a flat roller H and a vertical roller I, the flat roller H bears vertical load, and the vertical roller I bears horizontal load.

The telescopic supporting leg assembly comprises a main supporting leg C and an auxiliary supporting leg J, which are in a scissor fork supporting leg form and are driven by an electric cylinder. The main supporting leg C is used for main supporting action of the movable working platform A in a working state, and the auxiliary supporting leg J is used for auxiliary supporting when the movable working platform A moves out. The number of the main supporting legs C is four, and the number of the auxiliary supporting legs J is two; two main supporting legs C are arranged on the second frame platform unit E, one main supporting leg is fixed in the middle, and the other main supporting leg is fixed on the side edge; the other two main legs are arranged on the third frame platform unit F, and the fixing positions of the two main legs are consistent with those of the two main legs on the second platform unit.

As shown in fig. 4(a) and 4(b), the main leg C includes an electric cylinder i CE, an upper slide i CD, an outer arm i CC, a lower slide i CA, and an inner arm i CB. Electronic jar I CE drive outer arm I CC slides in I CD of last slide, drives I CB of inner arm and slides in I CA of glide slope, and the bottom contacts with the foundation ditch bottom surface up to I CA of glide slope.

As shown in fig. 5(a) and 5(b), the auxiliary leg J includes an electric cylinder ii JA, an upper slide ii JB, an outer arm ii JC, a lower slide ii JD, an inner arm ii JE, and a roller i JF. The electric cylinder II JA drives the outer arm II JC to slide in the upper slideway II JB and drives the inner arm II JE to slide in the lower slideway II JD, and the roller I JF can roll on the bottom surface of the foundation pit. When the movable working platform A moves back and forth between the retracted state auxiliary position 1 and the extended state working position 2, the auxiliary supporting leg J extends out and slides along the bottom of the pit of the extended state working position 2.

The driving wheel set B comprises a main driving wheel N and a driven wheel K; the main driving wheel N is arranged on the bottom surface of the first frame platform unit D, the driven wheel K is arranged on the bottom surfaces of the second frame platform unit E and the third frame platform unit F, and the main driving wheel N and the driven wheel K are symmetrically arranged along the central axis of the frame platform.

As shown in fig. 6, the main driving wheel N is composed of an electric reduction all-in-one machine NA, a connecting flange NB, and a roller wheel iinc. The electric speed reduction all-in-one machine NA transmits the rotating torque to the idler wheel II NC through the connecting flange NB, and the idler wheel II NC is driven to roll on the walking track ND.

As shown in fig. 7, the driven wheel K is composed of a pin KA and a roller iii KC. And the roller III KC penetrates into the structure through the pin shaft KA and rolls on the walking track ND along with the movement of the movable working platform A.

The arrangement states of the main supporting leg C, the auxiliary supporting leg J, the guide groove G and the main driving wheel N can ensure the stress balance of the working platform when the working platform bears the load.

When the movable working platform A is stored daily, the movable working platform A is in a withdrawing state auxiliary position 1, the telescopic supporting leg assembly is withdrawn in the frame platform, a gap exists between the telescopic supporting leg assembly and the bottom of the pit, and the telescopic supporting leg assembly does not interfere with the bottom surface of the foundation pit; before the special vehicle 3 works, the movable working platform A is driven to horizontally move on a preset walking track ND through the electric speed reduction integrated machine NA, a driven wheel K is driven to slide on the walking track ND, and meanwhile, a horizontal roller H and a vertical roller I slide along a guide groove G; after a slip end section distance, break away from the walking track from driving wheel K, at this moment, main landing leg C and auxiliary leg J all stretch out, main landing leg C provides the main tributary supporting effect, auxiliary leg J provides the auxiliary supporting effect, it is current on the platform to allow the wheeled vehicle that axle pressure is not more than 13t, auxiliary leg J's gyro wheel I JF slides along 2 hole bottoms in the state of stretching out work position, move to the state of stretching out work position 2 until removing work platform A, provide the support by flexible landing leg assembly, move work platform A surface height and flush with the foundation ditch upper surface all the time under two kinds of position states.

In summary, the above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.