CN214944301U

CN214944301U - Large-space trolley for tunnel secondary lining automatic pouring system

Info

Publication number: CN214944301U
Application number: CN202120501069.8U
Authority: CN
Inventors: 高韬; 王恩阳; 杨立国; 周长新; 迟德超; 范海花; 李宁; 杨红艳; 惠祎; 王远星
Original assignee: Shandong Hi Speed Engineering Construction Group Co Ltd
Current assignee: Shandong Hi Speed Engineering Construction Group Co Ltd
Priority date: 2021-03-09
Filing date: 2021-03-09
Publication date: 2021-11-30
Anticipated expiration: 2031-03-09

Abstract

The utility model relates to a big space platform truck for tunnel secondary lining automatic pouring system, relate to road construction's technical field, it includes the portal, side forms and mechanism of opening and shutting, the mechanism of opening and shutting includes first bracing piece, second bracing piece and first pneumatic cylinder, the one end and the portal of first bracing piece rotate to be connected, the other end and the side forms of first bracing piece rotate to be connected, the one end and the portal of second bracing piece rotate to be connected, the other end and the side forms of second bracing piece rotate to be connected, the one end and the portal of first pneumatic cylinder rotate to be connected, the other end and the side forms of first pneumatic cylinder rotate to be connected, first bracing piece is parallel and equals with the second bracing piece, the plane that first bracing piece and second bracing piece lie in is not parallel with the length direction of portal, the one end that first bracing piece is close to the side forms is not less than the one end that is close to the portal. This application is when packing up the side forms, and ground is kept away from gradually to the bottommost end of side forms, has reduced the probability of the bottommost end of side forms and ground contact, the walking of the two lining platform trucks of being convenient for.

Description

Large-space trolley for tunnel secondary lining automatic pouring system

Technical Field

The application relates to the field of road construction, in particular to a large-space trolley for a tunnel secondary lining automatic pouring system.

Background

The secondary lining is the cast concrete or reinforced concrete lining applied on the inner side of the primary support in the tunnel engineering construction. In contrast, secondary lining and primary support refer to inner lining constructed by concrete and other materials under the condition that the tunnel is subjected to primary support, so as to achieve the effects of reinforcing support, optimizing a route waterproof and drainage system, beautifying appearance, conveniently setting facilities such as communication, illumination, monitoring and the like, and adapt to the requirement of modern highway tunnel construction.

At present, the announcement date is 2019, 10 and 11 days, chinese utility model patent with the announcement number of CN209483382U proposes a big space trolley structure for tunnel secondary lining automatic pouring system, it includes the portal, running gear, the side forms, the cope, the hydro-cylinder that opens and shuts, jacking cylinder and mechanism that opens and shuts, cope fixed connection is on the portal, the side forms set up the both sides at the cope, and the side forms is articulated with the cope, the mechanism that opens and shuts includes force bar a and force bar B, the one end of force bar a is articulated with the portal, the one end of force bar B is articulated with the side forms, the one end that force bar a kept away from people sees is articulated with the one end that force bar B kept away from the side forms, the one end of the hydro-cylinder that opens and shuts is articulated with the portal, the other end of the hydro-cylinder that opens and shuts is articulated with the middle part of force bar a, the one end and the running gear of jacking cylinder are connected, the other end and the portal frame of jacking cylinder are connected. When the top die and the side die need to be retracted, the side die is retracted through the opening and closing oil cylinder, and then the gantry and the top die are lowered through the jacking oil cylinder.

In view of the above-mentioned related art, the inventor believes that the bottommost end of the side form is likely to contact the ground when the top form and the side form are retracted, and thus the walking of the two-liner trolley is not facilitated.

SUMMERY OF THE UTILITY MODEL

In order to reduce the probability that the bottommost end of the side forms contacts with the ground after the side forms are retracted, the application provides a large-space trolley for a tunnel secondary lining automatic pouring system.

The application provides a big space platform truck for tunnel secondary lining automatic casting system adopts following technical scheme:

a large-space trolley for a tunnel secondary lining automatic pouring system comprises a portal frame, a traveling mechanism, a top die, a side die, a jacking mechanism and an opening and closing mechanism, wherein the traveling mechanism, the jacking mechanism and the top die are all arranged on the portal frame, the opening and closing mechanism comprises a first supporting rod, a second supporting rod and a first hydraulic cylinder, one end of the first supporting rod is rotatably connected with the portal frame, the other end of the first supporting rod is rotatably connected with the side die, one end of the second supporting rod is rotatably connected with the portal frame, the other end of the second supporting rod is rotatably connected with the side die, one end of the first hydraulic cylinder is rotatably connected with the portal frame, the other end of the first hydraulic cylinder is rotatably connected with the side die, the first supporting rod is parallel and equal to the second supporting rod, the plane where the first supporting rod and the second supporting rod are located is not parallel to the length direction of the portal frame, one end of the first supporting rod, which is close to the side formwork, is not lower than one end of the first supporting rod, which is close to the door frame.

By adopting the technical scheme, when the piston rod of the first hydraulic cylinder extends out, the side forms are in an unfolded state, the bottommost ends of the side forms are flush with the ground, and one end, close to the side forms, of the first supporting rod is not lower than one end, close to the portal, of the first supporting rod; when the piston rod of first pneumatic cylinder withdrawed, under the effect of parallelogram law, the side forms just slided towards the direction of being close to the portal upwards, and the bottommost of side forms is kept away from ground gradually like this, and then packs up the back at the side forms, reduces the probability of side forms bottommost and ground contact, the walking of the two lining platform trucks of being convenient for.

Optionally, chamfers are respectively arranged at one end of the side forms close to the top form and one end of the top form close to the side forms, and when the side forms and the top forms are completely unfolded, one end of the side forms close to the top forms is abutted to one end of the top forms close to the side forms.

Through adopting above-mentioned technical scheme, when expanding side forms and top mould or packing up side forms and top mould, the difficult emergence of side forms and top mould is collided with, has reduced the dead probability of side forms and top mould card.

Optionally, when the side forms are completely unfolded, the axis of the first hydraulic cylinder is perpendicular to the side forms.

Through adopting above-mentioned technical scheme, when tunnel secondary lining, the concrete is exerted for the pressure perpendicular to side forms of side forms, and the side forms transmits this pressure to first pneumatic cylinder again, and when the side forms expand completely, the axle center perpendicular to side forms of first pneumatic cylinder for the pressure that first pneumatic cylinder bore is on a parallel with the axial of self, and then has reduced the probability that first pneumatic cylinder buckles, has prolonged the life-span of first pneumatic cylinder, has improved the holding power of side forms.

Optionally, the first support rod and the second support rod are respectively arranged at two ends of the side formwork in the circumferential direction, and the first hydraulic cylinder is arranged between the first support rod and the second support rod.

Through adopting above-mentioned technical scheme, first pneumatic cylinder supports in the middle part of side forms, and first bracing piece supports respectively at the both ends of side forms circumference with the second bracing piece, has improved the stability that the side forms was supported, has reduced the probability that the side forms removed when secondary lining.

Optionally, the side forms include template and strengthening rib, strengthening rib fixed connection be in the template, first bracing piece, second bracing piece, first pneumatic cylinder are kept away from the one end of portal all is connected in on the strengthening rib, the strengthening rib is followed the circumference setting of template.

Through adopting above-mentioned technical scheme, under the supporting role of strengthening rib, improved the ascending intensity of template in self circumference, so improved the stability that the side forms was supported, when secondary lining, reduced the probability that the side forms warp.

Optionally, when the side forms are completely unfolded, the first support rod is horizontally arranged, the first support rod is arranged below the second support rod, the first support rod is fixedly connected with a walking board, and the walking board is arranged along the length direction of the gantry.

By adopting the technical scheme, when the side forms are completely unfolded, the first supporting rod is unfolded to be horizontal, and the walking plate is unfolded to be horizontal along with the first supporting rod at the moment, so that constructors can walk on the walking plate, and the space utilization rate in the two-lining trolley is improved; and the channel that constructor walked is separated with the channel that the vehicle walked, has improved constructor's security.

Optionally, a limiting block is fixedly connected to the side formwork and arranged above the walking plate, and when the side formwork is completely unfolded, the limiting block abuts against the walking plate.

Through adopting above-mentioned technical scheme, because first bracing piece is in the horizontality when the side forms expand completely, under the limiting displacement of stopper, has reduced the probability that the one end that first bracing piece is close to the side forms is less than the one end that is close to the portal, when packing up the side forms, has reduced the dead probability of first bracing piece card, has improved the success rate of packing up the side forms.

Optionally, the jacking mechanism is arranged between the top die and the gantry, one end of the jacking mechanism is connected with the gantry, and the other end of the jacking mechanism is connected with the top die.

Through adopting above-mentioned technical scheme, when packing up the top mould, the portal can remain motionless, because the side forms setting is on the portal, consequently pack up the top mould and can not make the side forms descend, further reduced the probability of the bottommost of side forms and ground contact.

Optionally, the jacking mechanism includes a plurality of second pneumatic cylinders, the cylinder body fixed connection of second pneumatic cylinder is in on the portal, the piston rod fixed connection of second pneumatic cylinder is in on the top mould, the second pneumatic cylinder is vertical setting.

Through adopting above-mentioned technical scheme, stretch out the piston rod of second pneumatic cylinder and can rise the top mould, withdraw the piston rod of second mandarin duck pot and can descend the top mould, because the second pneumatic cylinder is vertical setting, when the side forms were packed up, the side forms was difficult for taking place to interfere with the second pneumatic cylinder, had improved the security moreover.

Optionally, the travelling mechanism comprises a travelling wheel and a driving motor, the travelling wheel is rotatably connected to the gantry, the driving motor is fixedly connected to the gantry, and an output shaft of the driving motor is in transmission connection with the travelling wheel.

By adopting the technical scheme, when the top die and the side die are both retracted, the driving motor drives the travelling wheels to rotate, so that the two-lining trolley can move on the ground; because the walking wheel is directly connected on the portal in a rotating way, the stability of the two-lining trolley during moving is improved.

In summary, the present application includes at least one of the following beneficial technical effects:

1. through the setting of opening and shutting the mechanism, when packing up the side forms, under the effect of parallelogram rule, the side forms just slides towards the direction of being close to the portal up, and ground is kept away from gradually to the bottommost of side forms like this, has reduced the probability of the bottommost of side forms and ground contact, the walking of the two lining platform trucks of being convenient for.

2. Through the setting of chamfer, when expanding side forms and top mould or packing up side forms and top mould, the difficult emergence of side forms and top mould is collided with, has reduced the dead probability of side forms and top mould card.

3. Through the arrangement of the walking plate, constructors can walk on the walking plate, and the space utilization rate in the two-lining trolley is improved; and the channel that constructor walked is separated with the channel that the vehicle walked, has improved constructor's security.

4. Through climbing mechanism's setting, can be that the portal keeps motionless when packing up the top mould, because the side forms setting is on the portal, consequently pack up the top mould and can not make the side forms descend, further reduced the probability of the bottommost of side forms and ground contact.

Drawings

FIG. 1 is a schematic front view of the overall structure of an embodiment of the present application;

FIG. 2 is an oblique perspective view of the overall mechanism of an embodiment of the present application.

Description of reference numerals: 110. a gantry; 120. carrying out top die; 130. side forms; 131. a template; 132. reinforcing ribs; 200. a traveling mechanism; 210. a traveling wheel; 220. a drive motor; 300. a jacking mechanism; 310. a second hydraulic cylinder; 400. an opening and closing mechanism; 410. a first support bar; 420. a second support bar; 430. a first hydraulic cylinder; 510. a walking board; 520. a limiting block; 530. and (6) chamfering.

Detailed Description

The present application is described in further detail below with reference to figures 1-2.

The embodiment of the application provides a large-space trolley for a tunnel secondary lining automatic pouring system, and referring to fig. 1, the large-space trolley for the tunnel secondary lining automatic pouring system comprises a portal 110 playing a main supporting role, a top formwork 120 and a side formwork 130 for supporting a secondary lining, a traveling mechanism 200 for driving the portal 110 to travel, a jacking mechanism 300 for unfolding the top formwork 120 and an opening and closing mechanism 400 for unfolding the side formwork 130.

Referring to fig. 1, the traveling mechanism 200 includes a traveling wheel 210 and a driving motor 220, the traveling wheel 210 is rotatably coupled to the lowermost end of the gantry 110, and the traveling wheel 210 rolls on the ground. The driving motor 220 is fixedly connected to the gantry 110 through bolts, an output shaft of the driving motor 220 is in coaxial key connection with the traveling wheels 210, and the driving motor 220 is preferably a speed reducing motor.

Referring to fig. 1, the jacking mechanism 300 includes a plurality of second hydraulic cylinders 310, the second hydraulic cylinders 310 are all vertical, and the cylinder body of the second hydraulic cylinder 310 is fixedly connected to the gantry 110 through a bolt, and the piston rod of the second hydraulic cylinder 310 is fixedly connected to the top mold 120 through a bolt. The piston rod of the second hydraulic cylinder 310 is extended to eject the top mold 120, and the piston rod of the second hydraulic cylinder 310 is retracted to retract the top mold 120.

Referring to fig. 1 and 2, the side form 130 includes a form 131 supporting the secondary lining and reinforcing bars 132 reinforcing the form 131. The cross section of the die plate 131 is arc-shaped, the reinforcing ribs 132 are welded to the inner circumferential surface of the die plate 131, and the reinforcing ribs 132 are arranged along the circumferential direction of the die plate 131. In the embodiment of the present application, reinforcing rib 132 is made by the channel-section steel, and the diapire of channel-section steel is laminated with the inner wall of template 131, and the opening of channel-section steel is towards portal 110.

Referring to fig. 1, the opening and closing mechanism 400 includes a first support bar 410 and a second support bar 420 for guiding the side forms 130, and the first support bar 410 and the second support bar 420 are parallel and equal. One end of the first support rod 410 is hinged with the door frame 110, and the other end of the first support rod 410 is hinged with the reinforcing rib 132; one end of the second support bar 420 is hinged to the door frame 110, the other end of the second support bar 420 is hinged to the reinforcing rib 132, and the plane on which the first support bar 410 and the second support bar 420 are located is not parallel to the length direction of the door frame 110.

Referring to fig. 1, the opening and closing mechanism 400 further includes a first hydraulic cylinder 430, a cylinder body of the first hydraulic cylinder 430 is hinged to the door frame 110, a piston rod of the first hydraulic cylinder 430 is hinged to the reinforcing rib 132, and one end of the first hydraulic cylinder 430 near the door frame 110 is higher than one end near the side form 130. When the first hydraulic cylinder 430 extends or retracts the piston rod, the side forms 130 can be controlled to move, and in the moving process of the side forms 130, one end of the first support rod 410 close to the side forms 130 is not lower than one end close to the door frame 110 all the time; thus, the extension of the piston rod of the first hydraulic cylinder 430 allows the sideform 130 to be deployed, and the retraction of the piston rod of the first hydraulic cylinder 430 allows the sideform 130 to be retracted.

Referring to fig. 1, preferably, the first support bar 410 and the second support bar 420 are respectively disposed at a desired position in the circumferential direction of the side form 130, and the first hydraulic cylinder 430 is disposed between the first support bar 410 and the second support bar 420. When concrete is poured, the bending moment borne by the reinforcing ribs 132 is reduced, and the probability of bending deformation of the template 131 is further reduced.

Referring to fig. 1, since the pressure applied to the sideform 130 by the concrete is perpendicular to the sideform 130 at the time of secondary lining of the tunnel, the sideform 130 transmits the pressure to the first hydraulic cylinder 430 again; therefore, when the side forms 130 are completely unfolded, the axis of the first hydraulic cylinder 430 is perpendicular to the mold plate 131, so that the pressure borne by the first hydraulic cylinder 430 is parallel to the axial direction of the first hydraulic cylinder 430, the bending stress borne by the first hydraulic cylinder 430 is reduced, the probability of leakage or bending deformation of the first hydraulic cylinder 430 is further reduced, and the service life of the first hydraulic cylinder 430 is prolonged.

Referring to fig. 1, when both the top mold 120 and the side mold 130 are completely unfolded, one end of the mold plate 131 close to the top mold 120 abuts one end of the top mold 120 close to the mold plate 131. The end of the die plate 131 close to the top die 120 and the end of the top die 120 close to the die plate 131 are both provided with chamfers 530, in the embodiment of the present application, the end of the inner peripheral surface of the die plate 131 close to the top die 120 is higher than the end of the outer peripheral surface of the die plate 131 close to the top die 120. When the top mold 120 and the side mold 130 are unfolded, the piston rod of the second hydraulic cylinder 310 is firstly extended to unfold the top mold 120, and then the piston rod of the first hydraulic cylinder 430 is extended to unfold the side mold 130; when the top mold 120 and the side mold 130 are retracted, the piston rod of the first hydraulic cylinder 430 is retracted to retract the side mold 130, and then the piston rod of the second hydraulic cylinder 310 is retracted to retract the top mold 120. Due to the arrangement of the chamfer 530, when the side die 130 is unfolded or retracted, the die plate 131 and the top die 120 are not easy to collide, and the probability of clamping of the side die 130 and the top die 120 is reduced.

Referring to fig. 1 and 2, when the side form 130 is completely unfolded, the first support bar 410 and the second support bar 420 are both horizontally disposed, and the first support bar 410 is disposed below the second support bar 420. The upper end surface of the first support bar 410 is welded with a walking plate 510, the width of the walking plate 510 is the same as the length of the first support bar 410, and the length direction of the walking plate 510 is the same as the length direction of the gantry 110.

Since the first support rod 410 is in a horizontal state when the side form 130 is completely unfolded, the walking board 510 is also in a horizontal state. In the construction process, constructors can walk on the walking plates 510, vehicles or other mechanical carriers walk below the portal frame 110, and the space utilization rate in the two-lining trolley is improved; and the channel that constructor walked is separated with the channel that the vehicle walked, has improved constructor's security.

Referring to fig. 1, a stopper 520 is further welded to the reinforcing bar 132, and the stopper 520 is disposed at an upper portion of one end of the traveling plate 510 close to the reinforcing bar 132. When the side forms 130 are fully deployed, the stop blocks 520 abut against the upper surface of the walking plate 510. When the sideforms 130 are completely unfolded, under the action of the gravity of the sideforms 130, the first supporting rod 410 is easy to rotate to a state that one end close to the sideforms 130 is lower than one end close to the door frame 110, the rotation of the first supporting rod 410 is limited through the arrangement of the limiting block 520, and the probability that one end close to the sideforms 130 is lower than one end close to the door frame 110 when the first supporting rod 410 rotates is reduced; and then when the piston rod of first pneumatic cylinder 430 withdraws, can guarantee that the bottommost end of side forms 130 moves upward all the time, reduced the probability that the bottommost end of side forms 130 collides with the ground.

The implementation principle of the large-space trolley for the tunnel secondary lining automatic pouring system in the embodiment of the application is as follows:

when the top mold 120 and the side mold 130 are unfolded, the piston rod of the second hydraulic cylinder 310 is firstly extended, the top mold 120 is unfolded in place, then the piston rod of the first hydraulic cylinder 430 is extended, the side mold 130 is unfolded in place, at the moment, the walking plate 510 is in a horizontal state, constructors can walk from the walking plate 510, and the space utilization rate in the two-lining trolley is improved; when the top mold 120 and the side mold 130 are retracted, the piston rod of the first hydraulic cylinder 430 is retracted first, and the side mold 130 slides upwards and towards the door frame 110 continuously under the action of the parallelogram, so that the bottom end of the side mold 130 can be lifted from the ground; and then the piston rod of the second hydraulic cylinder 310 is retracted to retract the top die 120, and in the process of retracting the top die 120, the portal 110 is kept still, so that the side die 130 is kept still, and the probability of touching the bottom end of the side die 130 to the ground is further reduced. After the side forms 130 and the top form 120 are completely retracted, the driving motor 220 drives the traveling wheels 210 to roll, and further drives the two-lining trolley to move.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The large-space trolley for the tunnel secondary lining automatic pouring system is characterized by comprising a portal (110), a walking mechanism (200), a top die (120), a side die (130), a jacking mechanism (300) and an opening and closing mechanism (400), wherein the walking mechanism (200), the jacking mechanism (300) and the top die (120) are all arranged on the portal (110), the opening and closing mechanism (400) comprises a first supporting rod (410), a second supporting rod (420) and a first hydraulic cylinder (430), one end of the first supporting rod (410) is rotatably connected with the portal (110), the other end of the first supporting rod (410) is rotatably connected with the side die (130), one end of the second supporting rod (420) is rotatably connected with the portal (110), and the other end of the second supporting rod (420) is rotatably connected with the side die (130), one end of the first hydraulic cylinder (430) is rotatably connected with the portal (110), the other end of the first hydraulic cylinder (430) is rotatably connected with the side formwork (130), the first supporting rod (410) is parallel to and equal to the second supporting rod (420), the plane where the first supporting rod (410) and the second supporting rod (420) are located is not parallel to the length direction of the portal (110), and one end, close to the side formwork (130), of the first supporting rod (410) is not lower than one end, close to the portal (110).

2. The large-space trolley for the automatic casting system of the tunnel secondary lining is characterized in that: and chamfers (530) are respectively arranged at one end of the side forms (130) close to the top form (120) and one end of the top form (120) close to the side forms (130), and when the side forms (130) and the top form (120) are completely unfolded, one end of the side forms (130) close to the top form (120) is abutted against one end of the top form (120) close to the side forms (130).

3. The large-space trolley for the automatic casting system of the tunnel secondary lining is characterized in that: when the side forms (130) are completely unfolded, the axis of the first hydraulic cylinder (430) is perpendicular to the side forms (130).

4. The large-space trolley for the automatic casting system of the tunnel secondary lining is characterized in that: the first support rod (410) and the second support rod (420) are respectively arranged at two circumferential ends of the side die (130), and the first hydraulic cylinder (430) is arranged between the first support rod (410) and the second support rod (420).

5. The large-space trolley for the automatic casting system of the tunnel secondary lining is characterized in that: side forms (130) are including template (131) and strengthening rib (132), strengthening rib (132) fixed connection be in on template (131), first bracing piece (410), second bracing piece (420), first pneumatic cylinder (430) are kept away from the one end of portal (110) is all connected on strengthening rib (132), strengthening rib (132) are followed the circumference setting of template (131).

6. The large-space trolley for the tunnel secondary lining automatic pouring system according to any one of claims 1 to 5, wherein: when side forms (130) expand completely, first bracing piece (410) are the level setting, first bracing piece (410) set up the below of second bracing piece (420), fixedly connected with walking board (510) on first bracing piece (410), walking board (510) are followed the length direction setting of portal (110).

7. The large-space trolley for the automatic casting system of the tunnel secondary lining is characterized in that: the side forms (130) are fixedly connected with limiting blocks (520), the limiting blocks (520) are arranged above the walking plates (510), and when the side forms (130) are completely unfolded, the limiting blocks (520) are abutted to the walking plates (510).

8. The large-space trolley for the tunnel secondary lining automatic pouring system according to any one of claims 1 to 5, wherein: the jacking mechanism (300) is arranged between the top die (120) and the portal frame (110), one end of the jacking mechanism (300) is connected with the portal frame (110), and the other end of the jacking mechanism (300) is connected with the top die (120).

9. The large-space trolley for the automatic casting system of the tunnel secondary lining is characterized in that: the jacking mechanism (300) comprises a plurality of second hydraulic cylinders (310), the cylinder bodies of the second hydraulic cylinders (310) are fixedly connected to the gantry (110), the piston rods of the second hydraulic cylinders (310) are fixedly connected to the top die (120), and the second hydraulic cylinders (310) are vertically arranged.

10. The large-space trolley for the tunnel secondary lining automatic pouring system according to any one of claims 1 to 5, wherein: running gear (200) include walking wheel (210) and driving motor (220), walking wheel (210) rotate to be connected on portal (110), driving motor (220) fixed connection be in on portal (110), the output shaft of driving motor (220) with walking wheel (210) transmission is connected.