A lifting trolley for pipe gallery construction

Abstract

The present invention discloses a lifting trolley for pipe gallery construction, comprising a frame, a walking mechanism, a hydraulic lifting leg and a translational actuator are arranged on the frame, the hydraulic lifting leg is installed at both ends of the translational actuator, the frame is installed on the translational actuator, the frame is lifted by the hydraulic lifting leg, and then the entire frame is driven to translate horizontally by the translational actuator, so that the frame drives the inner mold frame thereon to move horizontally. By using a lifting trolley to complete the lifting of each inner mold frame one by one, as well as the longitudinal transportation and lateral position adjustment work, the labor intensity of workers can be effectively reduced, and the invention is suitable for use in pipe gallery concrete construction.

Description

Technical Field

[0001] The invention belongs to the technical field of pipe gallery concrete construction, and particularly relates to a lifting trolley for pipe gallery construction. Background Art

[0002] With the rapid development of urbanization, urban land resources are becoming increasingly scarce, while urban construction projects and public facilities are increasing. Especially in the construction of various pipelines, if the planning and design are improper, repeated excavation will occur, which will not only affect the normal traffic in the city, but also affect the service life of various pipelines. By applying comprehensive pipeline corridor construction technology, the above problems can be effectively solved to ensure the safe operation of various pipelines. The existing pipeline corridor concrete construction mostly relies on manual work, which has high labor intensity, high risk factor and low mechanization degree. Summary of the invention

[0003] The purpose of the present invention is to overcome the shortcomings of the prior art and to provide a lifting trolley for pipe gallery construction. The lifting of each inner mold frame, as well as the longitudinal transportation (longitudinal direction refers to the length direction of the pipe gallery) and the lateral position adjustment (lateral direction refers to the width direction of the pipe gallery) can be completed one by one by one through a lifting trolley, which can effectively reduce the labor intensity of workers and is suitable for use in pipe gallery concrete construction.

[0004] The present invention is achieved through the following technical solutions:

[0005] A lifting trolley for pipe gallery construction comprises a frame, on which a walking mechanism, a hydraulic lifting leg and a translational actuator are arranged. The hydraulic lifting legs are mounted at both ends of the translational actuator, and the frame is mounted on the translational actuator. The frame is lifted by the hydraulic lifting legs, and then the entire frame is driven to translate laterally through the translational actuator, thereby realizing the lateral movement of the inner mold frame driven by the frame.

[0006] During construction, each tunnel is equipped with a lifting trolley, and the number of inner mold frames is equipped according to the project requirements. A lifting trolley is used to lift each inner mold frame one by one, and to carry it longitudinally (longitudinal refers to the length direction of the tunnel) and adjust its position transversely (transverse refers to the width direction of the tunnel).

[0007] In the above technical solution, the walking mechanism includes at least four wheels, and the wheels are driven by a motor and a transmission mechanism, so as to control the active walking of the lifting trolley.

[0008] In the above technical solution, four hydraulic lifting legs and two translational actuators are provided on the frame of the lifting trolley, and a hydraulic lifting leg is arranged at both ends of each translational actuator.

[0009] In the above technical scheme, the translation actuator includes a guide sleeve, a guide core and a translation cylinder. The guide core is slidably installed in the guide sleeve. The two ends of the guide core are respectively connected to the hydraulic lifting legs. The tail of the translation cylinder is connected to the guide sleeve, and the action end of the translation cylinder is connected to the hydraulic lifting legs. The frame is fixedly installed on the guide sleeve; when the four hydraulic lifting legs of the lifting trolley are raised, the wheels of the lifting trolley are separated from the ground, and the four hydraulic lifting legs are supported on the ground. Then, the guide sleeve is driven by the translation cylinder to move laterally along the guide core, and then the guide sleeve synchronously drives the frame to translate laterally.

[0010] In the above technical scheme, the translation actuator adopts a linear slide, which includes a housing, a screw, a slide, and a drive motor. The two ends of the housing are respectively connected to the hydraulic lifting legs. The screw is horizontally installed in the housing through two bearing seats. The drive motor is fixedly installed on the housing, and the output shaft of the drive motor is connected to the screw transmission. The frame is fixed on the slide, the slide is slidably installed on the housing through a slide rail, and the slide is connected to the screw through the screw nut at the bottom. When the drive motor drives the screw to rotate, the screw will drive the slide to move laterally, and then the slide drives the frame to move.

[0011] The advantages and beneficial effects of the present invention are:

[0012] During construction, each pipe gallery can be equipped with a lifting trolley, and the number of inner mold frames can be equipped according to the project requirements. Each inner mold frame can be lifted one by one through a lifting trolley, and the longitudinal transportation (longitudinal refers to the length direction of the pipe gallery) and the lateral position adjustment (lateral refers to the width direction of the pipe gallery) can be completed one by one. It can effectively reduce the labor intensity of workers and is suitable for use in pipe gallery concrete construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the lifting trolley of the present invention (bottom view).

[0014] Figure 2 It is a structural schematic diagram (side view) of the lifting trolley of the present invention.

[0015] Figure 3 It is a structural schematic diagram of the lifting trolley of the present invention when the translation actuator adopts a translation cylinder.

[0016] Figure 4 It is a structural schematic diagram of the lifting trolley of the present invention when the translational actuator adopts a linear slide.

[0017] Figure 5 It is a schematic diagram of the cross-sectional structure of the inner mold frame in the fourth embodiment of the present invention.

[0018] Figure 6 It is a schematic diagram of the longitudinal section structure of the inner mold frame in the fourth embodiment of the present invention.

[0019] Figure 7 It is a partial enlarged view of the top of the movable column of the inner mold frame in the fourth embodiment of the present invention.

[0020] Figure 8 It is a structural schematic diagram of the translation driver of the inner mold frame in the fourth embodiment of the present invention.

[0021] Fig. 9 It is a side view of the translation driver of the inner mold frame in the fourth embodiment of the present invention.

[0022] Fig.10 It is an enlarged structural diagram between the rotating nut and the thrust bearing seat of the translation driver of the inner mold frame in the fourth embodiment of the present invention.

[0023] Fig.11 It is a left structural schematic diagram of the transmission assembly of the inner mold frame in the fourth embodiment of the present invention.

[0024] Fig.12 It is a schematic diagram of the right side structure of the transmission assembly of the inner mold frame in the fourth embodiment of the present invention.

[0025] Fig.13 It is a schematic structural diagram of the corner of the inner mold frame in the fourth embodiment of the present invention.

[0026] For ordinary technicians in this field, other relevant drawings can be obtained based on the above drawings without any creative work. DETAILED DESCRIPTION

[0027] In order to enable those skilled in the art to better understand the technical solution of the present invention, the technical solution of the present invention is further described below in conjunction with specific embodiments.

[0028] Embodiment 1

[0029] See attached Figure 1-2 A lifting trolley for pipe gallery construction includes a frame 21-1, and at least four wheels are arranged on the frame 21-1. The wheels are driven by a motor and a transmission mechanism, so as to control the lifting trolley to move actively. A hydraulic lifting leg 21-2 and a translational actuator 21-3 are arranged on the frame 21-1. The hydraulic lifting leg is installed at both ends of the translational actuator 21-3, and the frame 21-1 is installed on the translational actuator 21-3. The frame 21-1 is pushed up by the hydraulic lifting leg to make the wheels leave the ground; and then the entire frame 21-1 is driven to translate horizontally by the translational actuator 21-3, so that the frame 21-1 drives the inner mold frame thereon to translate horizontally.

[0030] During construction, each tunnel is equipped with a lifting trolley, and the number of inner mold frames is equipped according to the project requirements. A lifting trolley is used to lift each inner mold frame one by one, and to carry it longitudinally (longitudinal refers to the length direction of the tunnel) and adjust its position transversely (transverse refers to the width direction of the tunnel).

[0031] Embodiment 2

[0032] On the basis of the first embodiment, further, the frame of the lifting trolley is provided with four hydraulic lifting legs 21-2 and two translation actuators 21-3, and each translation actuator 21-3 is provided with a hydraulic lifting leg 21-2 at both ends. Figure 3 , specifically:

[0033] The translation actuator 21-3 includes a guide sleeve 21-31, a guide core 21-32 and a translation cylinder 21-33. The guide core 21-32 is slidably mounted in the guide sleeve 21-31. Both ends of the guide core 21-32 are respectively connected to the hydraulic lifting legs 21-2. The tail of the translation cylinder 21-33 is connected to the guide sleeve 21-31. The action end of the translation cylinder 21-33 is connected to the hydraulic lifting legs 21-2. The frame is fixedly mounted on the guide sleeve 21-31.

[0034] When the four hydraulic lifting legs 21-2 of the lifting trolley are raised, the wheels of the lifting trolley leave the ground, and the four hydraulic lifting legs 21-2 are supported on the ground. Then, the guide sleeve 21-31 is driven to move laterally along the guide core 21-32 through the translation cylinder 21-33, and then the guide sleeve 21-31 synchronously drives the frame to translate laterally.

[0035] Embodiment 3

[0036] On the basis of the first embodiment, further speaking, the frame of the lifting trolley is provided with four hydraulic lifting legs 21-2 and two translation actuators 21-3, and each translation actuator 21-3 is provided with a hydraulic lifting leg 21-2 at both ends. Figure 4 , specifically:

[0037] The translation actuator 21-3 adopts a linear slide, which includes a housing 21-3a, a lead screw 21-3g, a slide 21-3b, and a drive motor 21-3f. The two ends of the housing 21-3a are respectively connected to the hydraulic lifting legs 21-2, the lead screw 21-3g is horizontally installed in the housing 21-3a through two bearing seats 21-3e, and the drive motor 21-3f is fixedly installed on the housing, and the output shaft of the drive motor 21-3f is connected to the lead screw 21-3 g transmission connection, the frame 21-1 is fixed on the slide 21-3b, the slide 21-3b is slidably installed on the shell 21-3a through the slide rail 21-3d, and the slide 21-3b is connected to the screw 21-3g through the screw nut 21-3c at the bottom. When the driving motor 21-3f drives the screw 21-3g to rotate, the screw 21-3g will drive the slide 21-3b to move horizontally, and then the slide 21-3b drives the frame 21-1 to move.

[0038] Embodiment 4

[0039] This embodiment introduces an inner mold frame used in conjunction with a lifting trolley to fully illustrate the purpose of the lifting trolley.

[0040] See attached Figure 5-13 An inner mold frame includes a door frame 1, a movable column 2, a column lifting support leg 3, a side mold 4, a top mold 5, a translation driver 6, a transmission assembly and a motor 8.

[0041] The door frame 1 is composed of a top door beam 1-1, a bottom cross brace 1-2 and a side vertical brace 1-3. The top door beam is made of H-shaped steel or steel plates welded into an H shape, and can be made of multiple sections bolted together to meet the use of sections with different widths; the side vertical brace 1-3 is fixedly arranged between the top door beam 1-1 and the bottom cross brace 1-2, and plays the role of connecting the top door beam and the bottom cross brace. A side vertical brace 1-3 is arranged on both sides of each bottom cross brace;

[0042] The movable columns 2 are located on both sides of the lateral (width direction) of the door frame 1, that is, a movable column 2 is arranged on each side of each door frame 1; a translation slide 2-1 is provided at the top of the movable column, and the top of the movable column is slidably installed with the outer end flange plate of the top door beam 1-1 of the door frame through the translation slide; further, the movable column is located on the outside of the side vertical support of the door frame.

[0043] The side formwork 4 is installed on the movable column 2, and the top formwork 5 is installed on the top door beam 1-1 of the door frame.

[0044] Each movable column 2 is connected to the door frame inside it through two translation drives 6 (preferably, one translation drive is installed on the side vertical support of the door frame, and the other translation drive is installed on the bottom horizontal support end of the door frame; or both translation drives can be installed on the side vertical supports). The movable column 2 is driven to move in translation by the translation drive 6, thereby realizing the translation movement of the side formwork to meet the positioning and demoulding actions of the side formwork.

[0045] The translation driver 6 includes a lead screw 6-1, a rotating nut 6-2, a thrust bearing seat 6-3 and a transmission sprocket 6-4. The thrust bearing seat 6-3 is fixedly installed on the door frame by bolts, the rotating nut 6-2 is installed in the thrust bearing seat 6-3, the lead screw 6-1 is installed in the rotating nut 6-2, the outer end of the lead screw is connected to the movable column 2, and the transmission sprocket 6-4 is fixedly sleeved on the rotating nut 6-2 by a key a. When the transmission sprocket 6-4 is driven to rotate, the transmission sprocket will drive the rotating nut 6-2 to rotate in the thrust bearing seat 6-3. When the rotating nut rotates, it drives the lead screw 6-1 inside it to perform an axial ejection or contraction movement, and then the lead screw drives the movable column 2 connected thereto to translate.

[0046] The transmission assembly is used to realize the transmission link between the motor 8 and the translation driver 6. Specifically, the transmission assembly includes a transmission shaft 7-1, a transition sprocket 7-2 fixedly installed in the middle of the transmission shaft, end sprockets 7-3 fixedly installed at both ends of the transmission shaft, and a driving sprocket 7-4 installed on the motor shaft. The transmission shaft is horizontally installed on the two side vertical supports of the door frame. The motor 8 is fixed to one of the side vertical supports of the door frame through a motor mounting seat. The driving sprocket 7-4 on the motor shaft is linked to the transition sprocket 7-2 on the transmission shaft through a chain. The end sprockets 7-3 at both ends of the transmission shaft both adopt double-row sprockets (that is, the sprockets have double-row sprocket teeth). Each end sprocket 7-3 is linked to the transmission sprockets 6-4 on the two translation drivers 6 on the same side thereof through two chains. When the motor 8 is started, the active sprocket on the motor shaft drives the transmission shaft 7-1 to rotate through the transition sprocket connected to it, so that the end sprockets at both ends of the transmission shaft rotate synchronously, and the end sprockets drive the transmission sprocket 6-4 on the rotating nut of the translation driver 6 to rotate through the chain. The transmission sprocket will drive the rotating nut 6-2 to rotate in the thrust bearing seat. When the rotating nut rotates, it drives the lead screw 6-1 inside it to perform axial ejection or contraction movement, and then the lead screw drives the movable column 2 connected to it to translate, thereby realizing horizontal movement of the side template.

[0047] A column lifting support leg 3 is provided at the bottom of each movable column 2, and the height of the entire inner mold frame is adjusted by the column lifting support leg.

[0048] During construction, each pipeline corridor only needs to be equipped with a lifting trolley, and the number of inner mold frames can be determined according to project requirements.

[0049] Specifically, the usage is as follows:

[0050] Step 1: The lifting trolley lifts up a single inner mold frame. At this time, the column lifting support legs 3 and the movable columns 2 of the inner mold frame are in a retracted state. The lifting trolley transports the inner mold frame to the steel bar binding and waiting lining station, and then pushes up the frame through the hydraulic lifting legs of the lifting trolley to lift the wheels off the ground, and then drives the entire frame 21-1 to translate horizontally through the translation actuator, and adjusts the positioning posture of the inner mold frame to complete the initial positioning;

[0051] Step 2: Then start the motor 8 of the inner mold frame, drive the movable column 2 to translate outward through the translation driver 6, so that the side template 4 moves to the designated construction position;

[0052] Step 3: Then adjust the column lifting support legs 3 of the inner mold frame so that the column lifting support legs 3 support the ground, thereby fixing the position of the inner mold frame;

[0053] Step 4: Then lift the trolley down and separate the hydraulic lifting legs from the inner mold frame;

[0054] Step 5: Repeat the above construction steps and use the lifting trolley to complete the positioning and support work of the next inner mold frame;

[0055] Step 6: When the inner mold frame completes lining demoulding, the lifting trolley moves to the inner mold frame that needs to be demoulded, raises the hydraulic lifting legs of the lifting trolley so that the top of the lifting trolley is connected with the bottom of the inner mold frame, then retracts the column lifting support legs 3 of the inner mold frame, and then controls the movable columns 2 to drive the side formwork 4 to move horizontally toward the center line of the tunnel to complete the demoulding of the side formwork; then the lifting trolley lowers its hydraulic lifting legs to complete the demoulding of the top formwork 5 of the inner mold frame.

[0056] Furthermore, the inner mold frame can be longitudinally spliced ​​into the required size by multiple inner mold frame units to adapt to different construction needs. Each inner mold frame unit can realize a motor 8 to drive eight translation drivers 6 to move synchronously at the same time. Specifically: each inner mold frame unit includes two door frames 1, four movable columns 2, eight translation drivers 6, a motor 8 and a transmission shaft 7-1. The two door frames are arranged longitudinally at intervals from front to back. A movable column is arranged on each side of the lateral (width direction) of each door frame. The front and rear movable columns on the same side are connected by a longitudinal beam 9 and a scissor brace 10, which plays a role in stabilizing the structure and preventing the inner mold frame unit from being deformed by force. Each movable column 2 is connected to the inner door frame part through two translation drivers 6, that is, four translation drivers 6 are installed on each door frame 1; the motor 8 and the transmission shaft 7-1 are installed on one of the door frames, and the active sprocket 7-4 on the motor shaft is connected to the transmission through a chain. The transition sprocket 7-2 on the shaft is linked, and the end sprockets 7-3 at both ends of the transmission shaft are double-row sprockets, and each end sprocket is connected one-to-one with the transmission sprockets 6-4 on the two translation drivers 6 on the same side through two chains; and the transmission sprockets of the four translation drivers on the gantry on which the motor and the transmission shaft are installed also use double-row sprockets, and these double-row sprockets are respectively connected one-to-one (longitudinally) with the transmission sprockets of the four translation drivers on the other gantry, thereby realizing the synchronous linkage of eight translation drivers under the drive of one motor.

[0057] For further information, see Appendix Fig.10The specific installation structure of the thrust bearing seat 6-3 and the rotating nut 6-2 of the translation driver 6 is as follows: one end of the rotating nut 6-2 has a flange 6-21; the thrust bearing seat 6-3 includes an upper cover 6-31 and a base 6-32, the upper cover 6-31 and the base 6-32 are connected together by bolts, and an installation cavity is formed between the upper cover 6-31 and the base 6-32, and the flange 6-21 of the rotating nut 6-2 is installed in the installation cavity, and a plurality of rollers are arranged between the upper surface of the flange 6-21 of the rotating nut 6-2 and the upper cover 6-31 of the thrust bearing seat 6-3. The rotating nut 6-2 has a plurality of balls 6-3a, and a plurality of balls 6-3b are arranged between the lower surface of the flange 6-21 of the rotating nut 6-2 and the base 6-32 of the thrust bearing seat 6-3. A plurality of balls 6-3c are arranged between the outer side of the flange 6-21 of the rotating nut 6-2 and the upper cover 6-31 of the thrust bearing seat 6-3. This structure allows the rotating nut 6-2 and the thrust bearing seat 6-3 to have balls in both the axial and radial directions, so that the translation driver 6 can not only withstand sufficient axial thrust, but also withstand a certain radial pressure, and can enhance the service life and working stability of the translation driver 6. An oil filling hole 6-33 connected to the internal mounting cavity of the thrust bearing seat 6-3 is arranged on the upper cover 6-31 of the thrust bearing seat 6-3 for injecting lubricating oil, and a sealing nozzle is installed in the oil filling hole. Furthermore, in order to simplify the installation between the thrust bearing seat 6-3 and the rotating nut 6-2, the balls 6-3a, 6-3b and 6-3c may not be provided, and instead, a plurality of circles of lubrication slides may be provided between the upper surface of the flange 6-21 of the rotating nut 6-2 and the upper cover 6-31 of the thrust bearing seat 6-3, a plurality of circles of lubrication slides may be provided between the lower surface of the flange 6-21 of the rotating nut 6-2 and the base 6-32 of the thrust bearing seat 6-3, and a plurality of circles of lubrication slides may be provided between the outer side surface of the flange 6-21 of the rotating nut 6-2 and the upper cover 6-31 of the thrust bearing seat 6-3. This ensures sufficient lubrication between the thrust bearing seat 6-3 and the rotating nut 6-2, simplifies the installation, and saves the manufacturing and processing costs.

[0058] For further information, see Appendix Figure 11-12The structure of the transmission shaft 7-1 is as follows: the transmission shaft 7-1 includes a first rotating shaft 7-11, a second rotating shaft 7-12, a first bearing seat 7-13, a second bearing seat 7-14 and an intermediate connecting shaft 7-15. The first rotating shaft 7-11 is installed on one of the side vertical supports of the door frame through the first bearing seat 7-13, and the second rotating shaft 7-12 is installed on the other side vertical support of the door frame through the second bearing seat 7-14. The outer end of the first rotating shaft 7-11 is fixedly installed with an end sprocket by a key, and the inner end of the first rotating shaft 7-1 is connected to one end of the intermediate connecting shaft 7-15 by a flange b. The transition sprocket 7-2 is fixedly installed on the first rotating shaft 7-11; the outer end of the second rotating shaft 7-12 is fixedly installed with another end sprocket by a key, and the inner end of the second rotating shaft 7-12 is flange-connected to the other end of the intermediate connecting shaft 7-15.

[0059] For further information, see Appendix Fig.13 The side formwork 4 includes a straight formwork 4-1 and a top corner formwork 4-2. The straight formwork is arranged vertically and fixed to the movable column 2 through a back rib (the back rib is made of C-shaped steel). The top corner formwork 4-2 is fixedly connected to the top of the straight formwork 4-1. The top formwork 5 includes a straight formwork 5-1 and a side corner formwork 5-2. The straight formwork is arranged horizontally and fixed to the top door beam 1-1 of the door frame through a back rib (the back rib is made of C-shaped steel). The side corner formwork 5-2 is fixedly connected to the left and right ends of the straight formwork 5-1. A support assembly 11 (combined with the attached Figure 1 ), the support assembly is used to strengthen the support strength of the corner formwork; the support assembly includes a back rib 11-1, a first hinged support 11-2, a second hinged support 11-3 and a connecting rod 11-4, the back rib 11-1 is made of square steel and welded to the back of the top corner formwork 4-2, the top end of the connecting rod 11-4 is mounted on the back rib through the first hinged support, and the bottom end of the connecting rod is mounted on the movable column through the second hinged support. Furthermore, the back rib on the back of the top corner formwork should be exposed for a distance from the top of the top corner formwork. The effect of this is that when the movable column drives the entire side formwork to open outward into place, the exposed part of the back rib can support the side corner formwork of the top formwork, thereby ensuring the support strength of the entire corner formwork.

[0060] For ease of explanation, spatial relative terms such as "upper", "lower", "left", "right" and the like are used in the embodiments to illustrate the relationship of one element or feature shown in the figure relative to another element or feature. It should be understood that, in addition to the orientation shown in the figure, the spatial terms are intended to include different orientations of the device in use or operation. For example, if the device in the figure is inverted, the element described as being "under" other elements or features will be positioned "on" other elements or features. Therefore, the exemplary term "under" can include both upper and lower orientations. The device can be positioned in other ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used here can be interpreted accordingly.

[0061] Furthermore, relational terms such as “first” and “second” and the like are merely used to distinguish one component from another having the same name, but do not necessarily require or imply any such actual relationship or order between these components.

[0062] The present invention is described above by way of example. It should be noted that, without departing from the core of the present invention, any simple deformation, modification or other equivalent replacement that can be made by those skilled in the art without inventive effort falls within the protection scope of the present invention.

Claims

1. A lifting trolley for pipe gallery construction, characterized in that: The vehicle frame comprises a traveling mechanism, a hydraulic lifting leg and a translational actuator, the hydraulic lifting leg is installed at both ends of the translational actuator, the vehicle frame is installed on the translational actuator, the vehicle frame is lifted by the hydraulic lifting leg, and then the entire vehicle frame is driven to translate horizontally through the translational actuator, so that the vehicle frame drives the inner mold frame thereon to translate horizontally; During construction, each pipe gallery is equipped with a lifting trolley, and the number of inner mold frames is equipped according to the project requirements. Each inner mold frame is lifted, transported longitudinally, and adjusted horizontally one by one through a lifting trolley. The longitudinal direction refers to the length direction of the pipe gallery, and the horizontal direction refers to the width direction of the pipe gallery. The walking mechanism includes at least four wheels, which are driven by a motor and a transmission mechanism to control the lifting trolley to move actively; The frame of the lifting trolley is provided with four hydraulic lifting legs and two translation actuators, and a hydraulic lifting leg is arranged at both ends of each translation actuator; Also included is an inner mold frame used in conjunction with a lifting trolley, the inner mold frame comprising a door frame, a movable column, a column lifting support leg, a side mold, a top mold, a translation driver, a transmission assembly and a motor; The door frame is composed of a top door beam, a bottom cross brace and side vertical braces. The top door beam is made of H-shaped steel. The side vertical braces are fixedly arranged between the top door beam and the bottom cross brace to connect the top door beam and the bottom cross brace. A side vertical brace is arranged on both sides of each bottom cross brace. The movable columns are located on both sides of the gantry, that is, one movable column is arranged on each side of each gantry; a translation slide is provided on the top of the movable column, and the top of the movable column is slidably installed with the outer end flange plate of the top door beam of the gantry through the translation slide; the movable column is located on the outer side of the side vertical support of the gantry; The side template is installed on the movable column, and the top template is installed on the top door beam of the door frame; Each movable column is connected to the door frame inside it through two translation drives, and the translation drive drives the movable column to move in translation, thereby driving the translation movement of the side template; The translation driver includes a lead screw, a rotating nut, a thrust bearing seat and a transmission sprocket. The thrust bearing seat is fixedly mounted on the gantry by bolts, the rotating nut is mounted in the thrust bearing seat, the lead screw is mounted in the rotating nut, the outer end of the lead screw is connected to the movable column, and the transmission sprocket is fixedly sleeved on the rotating nut by a key. The transmission assembly is used to realize the transmission link between the motor and the translation driver. The transmission assembly includes a transmission shaft, a transition sprocket fixedly installed in the middle of the transmission shaft, end sprockets fixedly installed at both ends of the transmission shaft, and a driving sprocket installed on the motor shaft. The transmission shaft is transversely installed on the two side vertical supports of the gantry. The motor is fixed on one of the side vertical supports of the gantry through a motor mounting seat. The driving sprocket on the motor shaft is linked to the transition sprocket on the transmission shaft through a chain. The end sprockets at both ends of the transmission shaft adopt double-row sprockets. Each end sprocket is linked to the transmission sprockets on the two translation drivers on the same side through two chains. When the motor is started, the driving sprocket on the motor shaft drives the transmission shaft to rotate through the transition sprocket linked thereto, so that the end sprockets at both ends of the transmission shaft rotate synchronously. The end sprockets drive the transmission sprocket on the rotating nut of the translation driver to rotate through the chain. The transmission sprocket drives the rotating nut to rotate in the thrust bearing seat. When the rotating nut rotates, it drives the lead screw inside it to perform ejection or contraction movement along the axial direction, and then the lead screw drives the movable column connected thereto to translate, thereby realizing the horizontal movement of the side template. The transmission shaft includes a first rotating shaft, a second rotating shaft, a first bearing seat, a second bearing seat and an intermediate connecting shaft. The first rotating shaft is installed on one of the side vertical supports of the portal frame through the first bearing seat, and the second rotating shaft is installed on the other side vertical support of the portal frame through the second bearing seat. An end sprocket is fixedly installed on the outer end of the first rotating shaft through a key, and the inner end of the first rotating shaft is connected to one end of the intermediate connecting shaft through a flange, and the transition sprocket is fixedly installed on the first rotating shaft; another end sprocket is fixedly installed on the outer end of the second rotating shaft through a key, and the inner end of the second rotating shaft is flange-connected to the other end of the intermediate connecting shaft; A column lifting support leg is arranged at the bottom of each movable column, and the height of the entire inner mold frame is adjusted by the column lifting support leg.

2. The lifting trolley for pipe gallery construction according to claim 1 is characterized in that: The translation actuator includes a guide sleeve, a guide core and a translation cylinder. The guide core is slidably installed in the guide sleeve. The two ends of the guide core are respectively connected to the hydraulic lifting legs. The tail of the translation cylinder is connected to the guide sleeve, and the action end of the translation cylinder is connected to the hydraulic lifting legs. The frame is fixedly installed on the guide sleeve. When the four hydraulic lifting legs of the lifting trolley are raised, the wheels of the lifting trolley are separated from the ground, and the four hydraulic lifting legs are supported on the ground. Then, the guide sleeve is driven by the translation cylinder to move laterally along the guide core, and then the guide sleeve synchronously drives the frame to translate laterally.

3. The lifting trolley for pipe gallery construction according to claim 1 is characterized in that: The translational actuator adopts a linear slide, which includes a shell, a screw, a slide, and a drive motor. The two ends of the shell are respectively connected to the hydraulic lifting legs, the screw is horizontally installed in the shell through two bearing seats, the drive motor is fixedly installed on the shell, and the output shaft of the drive motor is connected to the screw transmission. The frame is fixed on the slide, the slide is slidably installed on the shell through a slide rail, and the slide is connected to the screw through the screw nut at the bottom. When the drive motor drives the screw to rotate, the screw drives the slide to move laterally, and then the slide drives the frame to move.

Images