CN114790898A

CN114790898A - Two lining platform trucks are window cloth mechanism and window cloth system by window

Info

Publication number: CN114790898A
Application number: CN202110100180.0A
Authority: CN
Inventors: 丁达兴; 丁颖群
Original assignee: Fujian Zhengfang Machinery Co ltd
Current assignee: Fujian Zhengfang Machinery Co ltd
Priority date: 2021-01-26
Filing date: 2021-01-26
Publication date: 2022-07-26

Abstract

The invention relates to a two-lining trolley window-by-window material distribution mechanism, which comprises a pipe section, a movable joint, a turnover material distribution head and a track, wherein: the plurality of pipe sections are connected through movable joints to form a wave-shaped deployable structure, a group of movable joints at wave crests or wave troughs are positioned on an independent walking trolley, and the walking trolley is abutted against the rail through a guide wheel; the first pipe section is connected with a concrete pipe through a movable joint, the last pipe section is connected with a turnover distributing head through a movable joint, and the window-by-window pouring is completed by the turnover distributing head; the window-by-window material distribution system is characterized in that two window-by-window material distribution mechanisms are respectively arranged on two sides and the top of the window-by-window material distribution system, so that the same section of window-by-window pouring is realized. The invention has the characteristics of ingenious conception, reasonable design, simple structure, flexible operation and control and high construction efficiency; the pipe sections are connected through movable joints, can stretch out and draw back freely to cover the whole workshop section, and are matched with turnover material distributing heads with freedom degrees, so that the requirement of pouring the same section window by window is met.

Description

Two lining platform trucks are window cloth mechanism and window cloth system by window

The technical field is as follows:

the invention belongs to the field of tunnel lining equipment, and particularly relates to a window-by-window distributing mechanism and a window-by-window distributing system of a two-lining trolley, in particular to a wavy expandable distributing pipeline which is connected by adopting movable joints, and can flexibly cope with the full-flow pouring of a workshop section.

The background art comprises the following steps:

the construction of the secondary lining concrete of the tunnel takes a lining trolley as a template system, and then the concrete is pumped into a mold for pouring. The two-lining trolley mainly comprises a portal frame, a bottom beam, a template hydraulic rod, an upper top frame, a top template and a side template; the material distributing system comprises a material distributing machine, a pouring pipe, a pouring window and the like. When the traditional method is adopted for carrying out two-lining concrete construction, in order to realize transverse, left, right, equal-height symmetry and longitudinal layered uniform pouring, a plurality of mold feeding windows (concrete feeding windows) are generally arranged on the left side, the right side, the upper part, the middle part and the lower part of a trolley in a layered mode along the axis direction of a tunnel, and concrete is conveyed to each mold feeding window from a conveying pump discharge port through a detachable conveying pipe. Of course, the act of arranging and removing tubes one by one for each window is inefficient, and various assumptions are made by the manufacturer, such as:

patent application No. 201220331471.7 discloses a distributing device based on two lining concrete construction trolleys in tunnel, including being used for carrying the switching-over pipe of concrete and being connected to the leading-in chute of a plurality of concrete of each income mould window department on the trolley, a plurality of leading-in chute tops of concrete are located to the switching-over pipe, and the exit end of switching-over pipe can change between a plurality of leading-in chutes of concrete. The efficiency problem is solved by installing the leading-in chutes at one time and distributing and pouring one by one, but chutes with different lengths and specifications are prepared, and the trouble in installation is increased.

And patent application number 201721893372.7 discloses a tunnel lining platform truck layering is by window pouring and cleaning system, including template unit, slip casting mouth, sprue gate, pipe-line system and cloth system, a plurality of template units connect gradually and form the domes and form the pouring area in the inboard of domes, wherein: the plurality of grouting ports are arranged at the vault position outside the arch structure and are arranged in the circumferential direction and the axial direction; the pipeline system comprises a plurality of concrete pipelines, one end of each concrete pipeline is respectively communicated with each pouring port, the other end of each concrete pipeline is connected to the corresponding pouring port, the material distribution system comprises a concrete pump, a feeding pipe, a material distribution trolley and a material distribution rack, the concrete pump is connected with the material distribution trolley through the feeding pipe, a rail is arranged on the material distribution rack, the material distribution trolley moves on the rail, a feeding port is formed in the material distribution trolley, and the feeding port corresponds to the pouring ports. The concrete is axially distributed one by one through the distribution trolley, but the troubles of pipe distribution and butt joint of the distribution trolley and each pipeline still exist.

Patent application No. 202010302225.8 discloses a novel hydraulic trolley for casting a tunnel secondary lining. The technical idea that the material distribution system is supported by the mechanical arm and the adjustment of up-down, left-right and stretching is realized by matching with a pipeline rotating joint is provided, but systematic matching details are lacked.

How to overcome the defects of the traditional technology and provide a practicable window-by-window cloth device, which is the object of the research of the invention.

The invention content is as follows:

the invention aims to design a two-lining trolley window-by-window material distribution mechanism, wherein pipe sections are connected into a wave-shaped material distribution pipeline through movable joints and can be unfolded along the pipeline; and the window-by-window distributing mechanism forms a window-by-window distributing system capable of realizing the pouring of the whole workshop section.

The technical scheme of the invention is realized as follows: the utility model provides a two lining platform trucks are window cloth mechanism by window, includes pipeline section, freely movable joint, upset cloth head and can lock solid at the track of two lining platform trucks fixed part, its characterized in that: the plurality of pipe sections are connected through movable joints to form a wave-shaped deployable structure, a group of movable joints at wave crests or wave troughs are positioned on an independent walking trolley, and the walking trolley is abutted against the track through a guide wheel; the pipe section at the beginning is connected with a concrete pipe through a movable joint, and the pipe section at the end is connected with a turnover distributing head through a movable joint; the overturning material distribution head comprises three sections of bent pipe bearings connected end to end, wherein the first section of bent pipe bearing is connected with the pipe section, and the pipe orifice of the tail section of bent pipe bearing is a material distribution port; the movable joint is divided into a driving joint and a driven joint, and each pipe section is connected with the driving joint and the driven joint respectively.

The movable joint is formed by connecting a pair of bent pipe bearings; the driving joint is provided with a driving mechanism, the driving mechanism comprises a joint oil-saving motor positioned on one elbow bearing and a worm wheel fixedly sleeved on the other elbow bearing, and a worm on an output shaft of the joint oil motor is meshed with the worm wheel to drive the pair of elbow bearings to rotate relatively.

The connecting arms for supporting are attached to the pipe sections, are respectively locked at the bent pipe bearings at two ends of the pipe sections and are locked on a supporting shaft bracket of the walking trolley through the connecting arms, and the supporting shaft bracket is positioned on the walking trolley through a shaft.

The track is a pair of parallel polished rods which are connected and supported through a middle square tube; the walking trolley is provided with four pairs of guide wheels which are divided into two rows and clamped on two sides of a pair of polished rods.

And a transition straight pipe is connected between the last pipe section and the overturning distributing head.

And an operating handle is welded on the surface of the bearing of the turning cloth head, middle and tail elbow.

A motorized device is arranged between a first-section bent pipe bearing and a pipe section in the overturning material distribution head and comprises an overturning oil motor and a speed reducer in transmission connection with the overturning oil motor, the motorized device is fixedly locked on the first-section bent pipe bearing, a driving chain wheel on an output shaft of the speed reducer is connected with a fixed chain wheel fixed on the pipe section through a chain, and the overturning oil motor drives a three-section bent pipe bearing to rotate relative to the pipe section.

The fixed chain wheel is fixedly sleeved on the pipe section and is concentric with the pipe section.

The central angle of the elbow bearing is 90 degrees.

A contain above-mentioned two lining platform trucks cloth system window by window of cloth mechanism, characterized by that: the upright columns and the top platform on two sides of the door beam assembly are respectively provided with a set of window-by-window distributing mechanism, and the window-by-window distributing mechanisms are locked on the upright columns and the top platform through square tubes on the tracks; wherein, the concrete pipe connected into the two window-by-window distributing mechanisms is connected with a tee joint after passing through the stop valve, one opening of the tee joint is used as a pump inlet, and the pipe opening of the concrete pipe in the window-by-window distributing mechanism positioned on the top platform is used as the pump inlet.

The invention has the characteristics of ingenious conception, reasonable design, simple structure, flexible operation and control and high construction efficiency; the pipe sections are connected through movable joints, can stretch freely to cover the whole workshop section, and are matched with the turnover cloth head, and the cloth opening has certain degree of freedom, so that the requirement of pouring the same section window by window is met; and two sides and the top of the door beam assembly are respectively provided with a set of window-by-window material distribution mechanism to form a complete window-by-window material distribution system.

Description of the drawings:

the invention is further illustrated with reference to the following specific drawings:

FIG. 1 is a schematic view of a window-by-window cloth mechanism

FIG. 2 is an enlarged view of part A of FIG. 1

FIG. 3 is a schematic view of a portion B of FIG. 1

FIG. 4 is a schematic partial cross-sectional view of a window-by-window cloth mechanism

FIG. 5 is an enlarged view of a portion C of FIG. 4

FIG. 6 is a schematic view of a reversible cloth head

FIG. 7 is a schematic view of a bent-tube bearing

FIG. 8 is a schematic view of a window-by-window cloth system

FIG. 9 is a schematic end view of a window-by-window dispensing system

Wherein

1-pipe segment 11-transition straight pipe 12-connecting arm

2-movable joint 21-driving joint 22-driven joint

23-joint oil motor 24-worm wheel 3-turnover distributing head

31-first section elbow bearing 32-tail section elbow bearing 33-material distribution port

34-handle 35-turnover oil motor 36-speed reducer

37-driving sprocket 38-fixed sprocket 4-walking trolley

41-guide wheel 42-supporting shaft bracket 5-track

51-polished rod 52-square tube 6-concrete pipe

Angle of X-radius

100-window-by-window material distribution mechanism 101-stop valve 102-tee joint

200-door beam assembly 201-upright column 202-top platform

The specific implementation mode is as follows:

referring to fig. 1 to 7, the two-lining-trolley window-by-window material distribution mechanism 100 includes a pipe section 1, a movable joint 2, a turnover material distribution head 3, a traveling trolley 4 and a rail 5, and is locked on a fixed portion of the two-lining-trolley by means of the rail 5 to form an integral telescopic support, and the turnover material distribution head 3 can cover the whole working surface. More specifically, the track 5 is a pair of parallel polish rods 51, which are connected and supported by a middle square tube 52, namely, the polish rods are locked on the two-lining trolley by the square tube 52; the walking trolley 4 is provided with four pairs of guide wheels 41 which are divided into two rows and clamped on two sides of a pair of polished rods 51, and the walking trolley 4 can stably walk no matter which vertical face the track 5 is positioned on.

The plurality of pipe sections 1 are connected through movable joints 2 to form a wave-shaped expandable structure, so that the telescopic adjustment function is completed; a group of movable joints 2 positioned at wave crests or wave troughs are positioned on an independent walking trolley 4, and the movable joints 2 walk on a track 5 by means of the independent walking trolleys 4 respectively, so that the unfolding and folding actions of the waved connected pipe sections are solved; among the pipe sections connected in the wave shape, a pipe section 1 at the beginning is connected with a concrete pipe 6 through a movable joint 2, and a pipe section 1 at the end is connected with a turnover distributing head 3 through a movable joint; of course, a transition straight pipe 11 can be connected between the last pipe section 1 and the overturning distribution head 3 to compensate the occupied space of a concrete vehicle and the like and reduce the number of movable joints.

In order to improve the strength of the connecting pipeline, the connecting arms 12 for supporting are attached to the pipe section 1, the connecting arms 12 are respectively locked at the bent pipe bearings at two ends of the pipe section 1 and are locked on a supporting shaft bracket 42 of the walking trolley through the connecting arms 12, the supporting shaft bracket 42 is positioned on the walking trolley 4 through a shaft, and the supporting shaft bracket 42 is allowed to swing around the shaft relative to the walking trolley 4 without hindering the unfolding and folding actions of the pipe section 1.

The movable joint 2 and the overturning material distribution head 3 are both composed of bent pipe bearings, and the central angles X of the adopted bent pipe bearings are both 90 degrees, as shown in figure 7, so that the adjacent pipe sections 1 can be ensured to be positioned on parallel surfaces. Wherein, the movable joint 2 is formed by connecting a pair of bent pipe bearings; the overturning material distribution head 3 comprises three sections of bent pipe bearings connected end to end, a first section of bent pipe bearing 31 is connected with the pipe section 1, and the pipe orifice of a tail section of bent pipe bearing 32 is a material distribution orifice 33; for this purpose, the inverting cloth head 3 is welded with an operating handle 34 on the surface of the tail elbow bearing 32 for hand-held operation, as shown in fig. 6.

The movable joint 2 has two structures, one is an active joint 21, namely a belt driving mechanism, which can actively drive the adjacent pipe sections 1 to be unfolded or folded; the driven joint 22 only follows the motion; each pipe section 1 is connected with a driving joint 21 and a driven joint 22, namely, one end of each pipe section 1 is connected with the driving joint 21, and the other end of each pipe section 1 is connected with the driven joint 22. In this example, the active joint 21 is disposed at a wave trough to provide a space for installing the driving mechanism in a suspended state; and the slave joint 22 is positioned on the walking trolley 4.

Further, the driving mechanism of the driving joint 21 includes a joint oil motor 23 positioned on one elbow bearing and a worm wheel 24 fixed on the other elbow bearing, and the worm on the output shaft of the joint oil motor 23 is engaged with the worm wheel 24 to drive the pair of elbow bearings to rotate relatively, so as to realize the action of the driving joint 21, as shown in fig. 3, 4 and 5.

Further, a motorized device is arranged between the first-section elbow bearing 31 and the pipe section 1 in the turnover cloth head 3, the motorized device comprises a turnover oil motor 35 and a speed reducer 36 in transmission connection with the turnover oil motor, the motorized device is locked on the first-section elbow bearing 31, namely the turnover oil motor 35 and the speed reducer 36 are fixedly connected and then locked on the first-section elbow bearing 31, a driving sprocket 37 on an output shaft of the speed reducer 36 is connected with a fixed sprocket 38 fixed on the pipe section 1 through a chain, and the turnover oil motor 35 drives the three-section elbow bearing to rotate relative to the pipe section 1, so that motorized and manual matching is realized to complete cloth operation, the weight of carrying the turnover cloth head 3 is reduced, and the rear two-section elbow bearing is more flexibly handled and controlled, as shown in fig. 6.

Then, the fixed chain wheel 38 is fixedly sleeved on the pipe section 1 or the transition straight pipe 11 and is concentric with the pipe section, so that the requirement of 360-degree rotation is met theoretically; of course, the fixed chain wheel 38 can also be fixed on a fixed shaft on the side surface of the pipe section, and the swing within the range of at least 180 degrees can also be realized, so that the actual construction requirement is basically met. In addition, the angle is adjusted by adopting a transmission mode of a chain wheel and a chain, the position can be more flexible and light, and a scheme of meshing gears can be adopted, for example, a driving gear is fixed on an output shaft of the speed reducer 36, a fixed gear or a sector gear is fixed on one side of a pipe section or a transition straight pipe, and the overturning material distribution head 3 is forced to swing by meshing of the fixed gear and the sector gear, as shown in fig. 1 and 6.

Referring to fig. 8 and 9, a window-by-window distributing system includes the above-mentioned two-lining trolley window-by-window distributing mechanism 100 and a door beam assembly 200, a set of window-by-window distributing mechanism 100 is respectively disposed on the upright 201 and the top platform 202 on both sides of the door beam assembly 200, and the window-by-window distributing mechanism 100 is locked on the upright 201 and the top platform 202 through the square tube 52 on the rail 5; the concrete pipe 101 connected into the window-by-window material distribution mechanisms 100 on two sides passes through the stop valve 101 and then is connected with the tee joint 102, one port of the tee joint 102 is used as a pump inlet, when the left side and the right side are constructed, switching can be conveniently carried out only by controlling the stop valve 101 to switch on and off, the trouble of pipe connection is not needed, and window-by-window construction on the same section can be realized; while the mouth of the concrete pipe 101 in the window-by-window distribution mechanism of the top platform 202 is directly the pump inlet.

Claims

1. The utility model provides a two lining platform trucks are window cloth mechanism by window, includes pipeline section, freely movable joint, upset cloth stub bar and can lock solid at the track of two lining platform trucks fixed parts, its characterized in that: the plurality of pipe sections are connected through movable joints to form a wave-shaped deployable structure, a group of movable joints at wave crests or wave troughs are positioned on an independent walking trolley, and the walking trolley is abutted against the track through a guide wheel; the pipe section at the beginning is connected with a concrete pipe through a movable joint, and the pipe section at the end is connected with a turnover distributing head through a movable joint; the overturning material distribution head comprises three sections of bent pipe bearings connected end to end, wherein the first section of bent pipe bearing is connected with the pipe section, and the pipe orifice of the tail section of bent pipe bearing is a material distribution port; the movable joint is divided into a driving joint and a driven joint, and each pipe section is connected with the driving joint and the driven joint respectively.

2. A two-lined trolley window-by-window spreader mechanism according to claim 1, wherein: the movable joint is formed by connecting a pair of bent pipe bearings; the driving joint is provided with a driving mechanism, the driving mechanism comprises a joint oil saving motor positioned on one elbow bearing and a worm wheel fixedly sleeved on the other elbow bearing, and a worm on an output shaft of the joint oil motor is meshed with the worm wheel to drive the pair of elbow bearings to rotate relatively.

3. A two-liner trolley window-by-window spreader mechanism according to claim 1 or 2, wherein: the pipe section is additionally provided with connecting arms for supporting, the connecting arms are respectively locked at the bent pipe bearings at two ends of the pipe section and are locked on a supporting shaft bracket of the walking trolley through the connecting arms, and the supporting shaft bracket is positioned on the walking trolley through a shaft.

4. A two-lined trolley window-by-window spreader mechanism according to claim 1, wherein: the track is a pair of parallel polished rods which are connected and supported through a middle square tube; the walking trolley is provided with four pairs of guide wheels which are divided into two rows and clamped on two sides of a pair of polished rods.

5. A two-lined trolley window-by-window spreader mechanism according to claim 1, wherein: and a transition straight pipe is connected between the last pipe section and the overturning distributing head.

6. A two-lined trolley window-by-window spreader mechanism according to claim 1 or 5, wherein: an operating handle is welded on the surface of the bearing of the elbow at the head, the middle and the tail of the turnover cloth.

7. A two-lined trolley window-by-window spreader mechanism as recited in claim 6, wherein: a motorized device is arranged between a first section of bent pipe bearing and a pipe section in the turnover material distributing head, the motorized device comprises a turnover oil motor and a speed reducer in transmission connection with the turnover oil motor, the motorized device is locked on the first section of bent pipe bearing, a driving chain wheel on an output shaft of the speed reducer is connected with a fixed chain wheel fixed on the pipe section through a chain, and the turnover oil motor drives the three sections of bent pipe bearings to rotate relative to the pipe section.

8. A two-lined trolley window-by-window spreader mechanism according to claim 7, wherein: the fixed chain wheel is fixedly sleeved on the pipe section and is concentric with the pipe section.

9. A two-lined trolley window-by-window spreader mechanism according to claim 1 or 2, wherein: the central angle of the elbow bearing is 90 degrees.

10. A window-by-window dispensing system comprising the two-lined trolley window-by-window dispensing mechanism of any one of claims 1 to 9, wherein: the upright columns and the top platform on two sides of the door beam assembly are respectively provided with a set of window-by-window distributing mechanism, and the window-by-window distributing mechanisms are locked on the upright columns and the top platform through square tubes on the tracks; wherein, the concrete pipe connected into the two window-by-window distributing mechanisms is connected with a tee joint after passing through the stop valve, one opening of the tee joint is used as a pump inlet, and the pipe opening of the concrete pipe in the window-by-window distributing mechanism positioned on the top platform is used as the pump inlet.