阅读说明：本技术 一种隧道支护作业台车 (Tunnel supporting operation trolley ) 是由 张永生 何友香 *** 陶文江 鲁承刚 徐斌 柳兵 王军 王鵾鹏 张高飞 张本敬 于 2019-09-26 设计创作，主要内容包括：本发明涉及隧道施工技术领域,具体是一种隧道支护作业台车,包括平板拖车和设于平板拖车上的承托框架和扩展台架,承托框架上设有拱架安装臂,扩展台架由下至上包括下框架、上框架和载物框架,下框架上对称设置两个伸缩下平台,伸缩下平台可从下框架的长边向外延展,上框架上对称设置两个伸缩上平台,伸缩上平台可从上框架的长边向外延展。扩展台架包括三层结构,靠下的两层结构可延展出水平位置可调的两层施工平台,且收拢后占用空间较小,载物框架作为顶层结构可存放拱架段并作为拱架安装臂的配套设施,因此作业台车整体结构紧凑且布局合理,具备一定的通用性且有助于提高隧道支护作业的施工效率。(The invention relates to the technical field of tunnel construction, in particular to a tunnel supporting operation trolley which comprises a platform trailer, a bearing frame and an extension rack, wherein the bearing frame and the extension rack are arranged on the platform trailer, an arch mounting arm is arranged on the bearing frame, the extension rack comprises a lower frame, an upper frame and a carrying frame from bottom to top, two telescopic lower platforms are symmetrically arranged on the lower frame, the telescopic lower platforms can extend outwards from the long edge of the lower frame, two telescopic upper platforms are symmetrically arranged on the upper frame, and the telescopic upper platforms can extend outwards from the long edge of the upper frame. The expansion rack comprises a three-layer structure, the lower two-layer structure can extend out of the two-layer construction platform with the adjustable horizontal position, the occupied space is smaller after the expansion rack is folded, and the carrying frame can store the arch frame section as a top layer structure and serve as a matched facility of the arch frame mounting arm, so that the operation trolley is compact in overall structure and reasonable in layout, has certain universality and contributes to improving the construction efficiency of tunnel supporting operation.)

1. The utility model provides a tunnel supporting operation platform truck, includes platform trailer and locates last bearing frame and the extension rack of platform trailer, the last bow member installation arm that is equipped with of bearing frame, the extension rack is by supreme underframe, last frame and year thing frame of including down, the underframe with go up the frame and be coaxial setting and for the equal same rectangle frame of shape and size, it sets up perpendicular roof beam in four corners department to go up the frame bottom, the bottom of perpendicular roof beam with underframe fixed connection, it through many spliced poles with go up the frame attach, the underframe in the minor face department with bearing frame connects its characterized in that:

the lower frame is symmetrically provided with two telescopic lower platforms, the telescopic lower platforms can extend outwards from the long edge of the lower frame, each telescopic lower platform comprises a lower bearing frame and at least two lower telescopic arms which are parallel to each other, the lower telescopic arms are arranged on the lower frame and are parallel to the short edges of the lower frame, the bottom of the lower bearing frame is provided with a lower pulley matched with the lower telescopic arms, and the lower telescopic arms can retract into the lower frame;

go up the symmetry and set up two flexible upper mounting boards on the frame, flexible upper mounting board can follow the long limit of upper mounting board outwards extends, flexible upper mounting board includes last carriage and two at least last flexible arms that are parallel to each other, go up flexible arm and locate go up on the frame and be on a parallel with the minor face of upper mounting board, go up the carriage bottom be equipped with go up flexible arm complex upper pulley, go up flexible arm retractile to the frame in.

2. A tunnel support work trolley as claimed in claim 1, wherein:

go up and bear frame bottom and set up spacing roof beam, each along two minor faces set up spacing hole on the spacing roof beam along length direction, go up be equipped with on the frame with spacing roof beam complex linking bridge, linking bridge includes the buttress, the buttress top sets up two otic placodes relatively, spacing roof beam is located two between the otic placode, two the otic placode upper end is in order to pass the spacer pin in spacing hole is connected.

3. A tunnel support work trolley as claimed in claim 2, wherein:

the upper bearing frame comprises an outer frame and an inner frame, the outer frame and the inner frame are rectangular frames with the same length, the outer frame is located on the outer side of the upper frame, the outer frame and the inner frame are hinged at long edges, two ends of the outer frame and two ends of the inner frame are flush, the upper pulleys are mounted at the bottom of the inner frame, and the limit beam is arranged at a short edge of the bottom of the inner frame.

4. A tunnel support work trolley as claimed in claim 3 wherein:

the telescopic upper platform further comprises an upper connecting rod connected with the two adjacent free ends of the upper telescopic arm, wherein the two adjacent free ends of the lower telescopic arm are positioned on the same side of the lower frame.

5. A tunnel support work trolley according to claim 4, wherein:

the upper connecting rod is oppositely provided with two supporting plates perpendicular to the upper connecting rod, an upper roller and an outer roller are arranged between the two supporting plates, the upper roller is positioned above the upper connecting rod, the outer roller is positioned on the outer side of the upper connecting rod, the upper roller is in rolling fit with the outer frame and the inner frame, and the outer roller is in rolling fit with the outer frame.

6. A tunnel support work trolley according to claim 5 wherein:

the width of the outer frame is greater than that of the inner frame.

7. A tunnel support work trolley according to claim 5 wherein:

and a limit baffle matched with the upper roller is arranged at the long edge of the bottom surface of the outer frame.

8. A tunnel support work trolley according to any one of claims 1 to 7, wherein:

the bottom of the lower bearing frame is hinged with the lower connecting rod at the long edge.

Technical Field

The invention relates to the technical field of tunnel construction, in particular to a tunnel supporting operation trolley.

Background

In the tunnel construction process, the tunnel instability and collapse can be prevented only by timely and effectively supporting the excavation section in the excavation link, and the arrangement of the arch center is a common tunnel construction supporting measure at present. In addition, currently, the operation trolley is frequently used as an auxiliary facility for tunnel arch construction in the working procedures of tunnel body excavation and primary support, the operation trolley is high in mobility and can provide a plurality of construction platforms in the tunnel, and the operation efficiency of various manual tunnel constructions is improved.

The tunnel excavation mode mainly comprises a full section, two steps, three steps and the like, and the conventional support operation trolley can only adapt to one excavation mode and can only adapt to the specific tunnel section size, so that the adaptability is poor and the universality is almost unavailable. Meanwhile, tunnel arch construction is still mainly carried out domestically by manpower at present, and the timeliness and effectiveness of excavation section support and the personal safety of constructors are difficult to guarantee.

Disclosure of Invention

The invention mainly aims to provide a tunnel supporting operation trolley which is strong in universality and capable of improving the installation efficiency of an arch frame.

In order to achieve the purpose, the tunnel supporting operation trolley provided by the invention comprises a platform trailer, and a supporting frame and an expansion rack which are arranged on the platform trailer. Be equipped with bow member installation arm on the bearing frame, the extension rack is by supreme underframe down, go up the frame and carry the thing frame, and the underframe just is the equal same rectangle frame of shape and size with last frame for coaxial setting, goes up the frame bottom and sets up perpendicular roof beam in four corners department, and the bottom and the underframe fixed connection of perpendicular roof beam carry the thing frame and pass through many spliced poles and last frame attach, and the underframe is connected with bearing frame in minor face department.

Two telescopic lower platforms are symmetrically arranged on the lower frame, and the telescopic lower platforms can extend outwards from the long edge of the lower frame. The telescopic lower platform comprises a lower bearing frame and at least two lower telescopic arms which are parallel to each other, the lower telescopic arms are arranged on the lower frame and are parallel to the short edges of the lower frame, lower pulleys matched with the lower telescopic arms are installed at the bottom of the lower bearing frame, and the lower telescopic arms can retract into the lower frame.

Two telescopic upper platforms are symmetrically arranged on the upper frame, and the telescopic upper platforms can extend outwards from the long edge of the upper frame. The telescopic upper platform comprises an upper bearing frame and at least two upper telescopic arms which are parallel to each other, the upper telescopic arms are arranged on the upper frame and are parallel to the short edges of the upper frame, upper pulleys matched with the upper telescopic arms are installed at the bottom of the upper bearing frame, and the upper telescopic arms can retract into the upper frame.

According to the scheme, the lower telescopic arm and the upper telescopic arm can better adapt to the section widths of different positions of the tunnel and respectively provide stable support for the lower bearing frame and the upper bearing frame. The lower bearing frame and the upper bearing frame can respectively slide along the lower telescopic arm and the upper telescopic arm, and the upper surface of the lower bearing frame and the upper bearing frame is fully paved with plates or meshes and then slides to a required position to be fixed, so that a stable and reliable construction platform is formed. The lower telescopic arm and the upper telescopic arm can be retracted into the lower frame and the upper frame respectively, so that the occupied space of the expansion platform in a folded state can be reduced as much as possible, and the trolley can move integrally in sections with different widths in the tunnel.

The further scheme is that the bottom of the upper bearing frame is provided with limiting beams along two short edges, each limiting beam is provided with limiting holes along the length direction, the upper frame is provided with a connecting support matched with the limiting beams, the connecting support comprises a buttress, the top of the buttress is relatively provided with two lug plates, the limiting beams are positioned between the two lug plates, and the upper ends of the two lug plates are connected through limiting pins penetrating through the limiting holes.

Therefore, the limiting beam and the connecting support are introduced to strengthen the matching between the upper bearing frame and the upper frame, limit the moving range of the upper bearing frame and prevent the upper bearing frame from slipping off the upper telescopic arm.

The further scheme is that the upper bearing frame comprises an outer frame and an inner frame, the outer frame and the inner frame are rectangular frames with equal length, the outer frame is located on the outer side of the upper frame, the outer frame and the inner frame are hinged at the long edge, the two ends of the outer frame and the two ends of the inner frame are flush, the upper pulley is mounted at the bottom of the inner frame, and the limit beam is arranged at the short edge of the bottom of the inner frame.

The telescopic upper platform further comprises an upper connecting rod connected with the free ends of the two adjacent upper telescopic arms at the same side of the upper frame.

From top to bottom, it can be seen that the synchronous operation of two piece at least last telescopic boom and lower telescopic boom can be guaranteed respectively to introduce upper connecting rod and lower connecting rod, can also improve the structural strength of flexible upper mounting plate and flexible lower mounting plate simultaneously.

The further scheme is that two support plates perpendicular to the upper connecting rod are oppositely arranged on the upper connecting rod, an upper roller and an outer roller are arranged between the two support plates, the upper roller is positioned above the upper connecting rod, the outer roller is positioned on the outer side of the upper connecting rod, the upper roller is in rolling fit with the outer frame and the inner frame, and the outer roller is in rolling fit with the outer frame.

It is from top to bottom seen that flexible upper mounting platform expandes in-process upper idler wheel and takes place the roll cooperation with inside casing and frame in proper order, and the outer idler wheel then takes place the roll cooperation with the frame for flexible upper mounting platform is in the expansion in-process upper telescopic arm can the smooth-going bearing frame of dragging and spreading.

The further proposal is that the width of the outer frame is larger than that of the inner frame.

It is thus clear that the width of frame is greater than the width of inner casing then the weight of frame is greater than the weight of inner casing, goes up the bearing frame and can stabilize the butt with the frame and make and go up flexible arm and drive the inner casing translation to maximum position at the initial stage of the process of spreading, therefore the whole process of expanding of flexible upper mounting plate all need not manual intervention.

The further proposal is that the bottom surface of the outer frame is provided with a limit baffle matched with the upper roller at the long edge.

From top to bottom, spacing baffle and last gyro wheel constitute the spacing mechanism of flexible upper platform outside to last carriage, and it can prevent under the expansion state jointly with spacing roof beam and linking bridge that the carriage system that last telescopic boom and upper connecting rod constitute from taking place relative slip.

The further proposal is that the bottom of the lower bearing frame is hinged with the lower connecting rod at the long edge.

Therefore, the lower bearing frame is hinged with the lower connecting rod, so that the lower bearing frame can move along with the extension and retraction of the lower telescopic arm without being pushed and fixed manually.

Drawings

Fig. 1 is a first perspective view structural view of an embodiment of a tunnel supporting work vehicle of the present invention in a deployed state.

Fig. 2 is a second perspective view structural view of the tunnel supporting work vehicle in the expanded state according to the embodiment of the present invention.

Fig. 3 is an enlarged structural view at a in fig. 2.

Fig. 4 is an enlarged structural view at B in fig. 2.

Fig. 5 is a structural view of the tunnel supporting work vehicle according to the embodiment of the present invention in an unfolded state with the arch mounting arm, the lower carrier frame and the upper carrier frame removed.

Fig. 6 is an enlarged structural view at C in fig. 5.

Fig. 7 is an enlarged structural view at D in fig. 5.

Fig. 8 is a first perspective view structural view of the tunnel supporting operation trolley in a folded state according to the embodiment of the invention.

Fig. 9 is a second perspective view structural view of the tunnel supporting work vehicle according to the embodiment of the present invention in a collapsed state.

The invention is further explained with reference to the drawings and the embodiments.

Detailed Description

Referring to fig. 1 to 9, the tunnel supporting operation trolley provided by the invention comprises a platform trailer 1, and a supporting frame 2 and an extension rack 3 which are arranged on the platform trailer 1, wherein an arch mounting arm 4 is arranged on the supporting frame 2, the extension rack 3 comprises a lower frame 31, an upper frame 32 and a carrying frame 33 from bottom to top, the lower frame 31 and the upper frame 32 are coaxially arranged and are rectangular frames with the same shape and size, vertical beams 34 are arranged at four corners of the bottom of the upper frame 32, the bottom ends of the vertical beams 34 are fixedly connected with the lower frame 31, the carrying frame 33 is connected with the upper frame 32 through a plurality of connecting columns 35, and the lower frame 31 is connected with the supporting frame 2 at the short sides.

Two telescopic lower platforms 36 are symmetrically arranged on the lower frame 31, and the telescopic lower platforms 36 can extend outwards from the long edge of the lower frame 31. The telescopic lower platform 36 includes a lower carriage 361 and at least two lower telescopic arms 362 parallel to each other, the lower telescopic arms 362 are disposed on the lower frame 31 and parallel to the short sides of the lower frame 31, a lower pulley 363 cooperating with the lower telescopic arms 362 is mounted at the bottom of the lower carriage 361, and the lower telescopic arms 362 can be retracted into the lower frame 31.

Two telescopic upper platforms 37 are symmetrically arranged on the upper frame 32, and the telescopic upper platforms 37 can extend outwards from the long edge of the upper frame 32. The telescopic upper platform 37 comprises an upper bearing frame 371 and at least two upper telescopic arms 372 which are parallel to each other, the upper telescopic arms 372 are arranged on the upper frame 32 and are parallel to the short sides of the upper frame 32, an upper pulley 373 matched with the upper telescopic arms 372 is arranged at the bottom of the upper bearing frame 371, and the upper telescopic arms 372 can retract into the upper frame 32.

The lower telescopic arm 362 and the upper telescopic arm 372 can better adapt to the section widths of different positions of the tunnel and respectively provide stable support for the lower bearing frame 361 and the upper bearing frame 371. The lower bearing frame 361 and the upper bearing frame 371 can slide along the lower telescopic arm 362 and the upper telescopic arm 372 respectively, and a stable and reliable construction platform can be formed after plates or meshes are fully paved on the upper surface of the upper bearing frame and then slide to the required positions to be fixed. The lower telescopic arm 362 and the upper telescopic arm 372 can be respectively retracted into the lower frame 31 and the upper frame 32, so that the occupied space of the expansion rack 3 in a folded state can be reduced as much as possible, and the trolley can move in a tunnel integrally.

The operation platform truck contains bow member installation arm 4, and extension platform 3 includes three layer construction, and the two-layer structure that leans on can extend out horizontal position adjustable two-layer construction platform, and draw in back occupation space less, and it can deposit the bow member section and regard as the supporting facility of bow member installation arm 4 as top layer structure to carry thing frame 33, therefore operation platform truck overall structure is compact and rationally distributed, possesses certain commonality and helps improving the efficiency of construction of tunnel supporting operation.