A form moving trolley device for longitudinal sliding of a cast-in-situ box girder outer side steel form

Abstract

A kind of shift trolley device for longitudinal sliding of cast-in-place box girder outer side steel form, including shift trolley, sliding track and winch, the sliding track is correspondingly set on steel form longitudinal sliding axis, shift trolley is set on the sliding track, steel form can be received on the shift trolley, the end of the shift trolley away from steel form is connected for the winch used to drag shift trolley;In the utility model, the sliding track is laid according to the position of steel form longitudinal sliding axis, therefore, the route of shift trolley conveying steel form is determined, compared with crane hoisting steel form, construction risk is smaller, efficiency is high, compared with using mobile mould frame, it can be used in more different structure cast-in-place box girder;It is convenient to use in the construction section of multiple changes of box girder structure.

Description

Technical Field

[0001] This utility model relates to the field of bridge technology, and in particular to a formwork trolley device for longitudinal sliding of the outer steel formwork of cast-in-place box girders. Background Technology

[0002] The cast-in-place box girder project involves a large amount of work, and the outer steel formwork involves many points and needs to be moved multiple times. When the outer steel formwork of the cast-in-place box girder is rotated for construction, the steel formwork is heavy and is blocked by the completed box girder structure, making it difficult to dismantle and move.

[0003] In existing technologies, steel formwork is often dismantled and transported by segmented assembly and hoisting or by using mobile formwork. The former is limited by the weight of the steel formwork and the hoisting range, requiring frequent adjustments to the crane position, resulting in numerous hoisting operations, higher construction risks, and lower efficiency. The latter does not require multiple hoisting and assembly operations, but it is limited by the formwork structure and has certain requirements for the uniformity of the box girder structure. Furthermore, both methods are inconvenient in construction sections where the box girder structure changes multiple times.

[0004] Based on the above problems, there is an urgent need to develop a formwork transfer trolley device for longitudinal sliding of the outer steel formwork of cast-in-place box girders. This device would solve the problems of low efficiency and cumbersome operation in the transfer of steel formwork, shorten the construction period, and simplify construction. Utility Model Content

[0005] The present invention aims to overcome the defects in the prior art by providing a formwork transfer trolley device for longitudinal sliding of the outer steel formwork of cast-in-place box girders. This device solves the problems of low efficiency and cumbersome operation in steel formwork transfer, shortens the construction period, and simplifies construction.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is: a formwork trolley device for longitudinal sliding of the outer steel formwork of a cast-in-place box girder, comprising a formwork trolley, a sliding track and a winch, wherein the sliding track is correspondingly arranged on the longitudinal sliding axis of the steel formwork, the formwork trolley is arranged on the sliding track, the formwork trolley can support the steel formwork, and the end of the formwork trolley away from the steel formwork is connected to a winch for dragging the formwork trolley.

[0007] As a preferred embodiment of this utility model, the sliding track includes at least two parallel H-beam assemblies, each H-beam assembly comprising a plurality of H-beams, with adjacent H-beams welded together.

[0008] As a preferred embodiment of this utility model, the mold-moving trolley includes a trolley main frame and roller assemblies located around the trolley main frame. The trolley main frame includes a transverse main rod, a longitudinal main rod, a transverse secondary rod, and a longitudinal secondary rod. Two transverse main rods arranged symmetrically on the left and right are connected by two longitudinal main rods arranged symmetrically on the front and back. The transverse main rods and transverse secondary rods are connected by longitudinal secondary rods. A space for accommodating the roller assembly is formed between the longitudinal main rods and the transverse secondary rods.

[0009] As a preferred embodiment of this utility model, the mold moving trolley further includes a reinforcing member and a connecting block. The reinforcing member is disposed between the inner wall of the transverse main rod and the inner wall of the longitudinal main rod, and the connecting block is fixedly disposed on the transverse secondary rod.

[0010] In a preferred embodiment of this utility model, the transverse main rod, longitudinal main rod, transverse secondary rod, longitudinal secondary rod, reinforcing member, and connecting block are welded together.

[0011] As a preferred embodiment of this utility model, the distance between the two symmetrically arranged transverse main rods is less than 1 / 2 of the length of the trolley's main frame.

[0012] As a preferred embodiment of this utility model, the roller assembly includes an outer connecting plate, an inner connecting plate, a roller, a bearing, and a connecting shaft. The bearing is located inside the roller, and the connecting shaft passes through the bearing and is fixed at both ends to the outer connecting plate and the inner connecting plate, respectively. The two ends of the outer connecting plate are respectively disposed on the outer walls of the longitudinal main rod and the transverse secondary rod, and the two ends of the inner connecting plate are respectively disposed on the inner walls of the longitudinal main rod and the transverse secondary rod.

[0013] As a preferred embodiment of the present invention, the roller includes a main roller portion and abutment portions located on both sides of the main roller portion. The main roller portion abuts against the top of the I-beam, and the abutment portions abut against the sidewalls of the I-beam.

[0014] In a preferred embodiment of this utility model, the bottom of the main roller portion is lower than the bottom of the trolley's main frame.

[0015] The beneficial effects of this utility model are: 1. In this utility model, the sliding track is laid according to the longitudinal sliding axis of the steel formwork. Therefore, the route of the formwork trolley to transport the steel formwork is fixed. Compared with the crane lifting the steel formwork, the construction risk is smaller and the efficiency is higher. Compared with the use of mobile formwork, it can be used for more cast-in-place box girders with different structures. It is beneficial to use the formwork trolley device in construction sections where the box girder structure changes multiple times.

[0016] 2. The structure of the steel formwork is not easily damaged when it is transported. Therefore, the steel formwork can be reused in other cast-in-place box girders.

[0017] 3. This utility model divides the mold-moving trolley into two parts: the trolley main frame and the roller assembly. On the one hand, the roller assembly can be adjusted on the trolley main frame without affecting the structure of the trolley main frame. On the other hand, it ensures that the trolley main frame formed by the integral connection has stable strength.

[0018] 4. This utility model ensures the strength of the trolley main frame by connecting the transverse main rod, longitudinal main rod, transverse secondary rod and longitudinal secondary rod. The reinforcement parts on it further strengthen the trolley main frame. The connecting blocks on the trolley main frame facilitate the dragging of the mold moving trolley.

[0019] 5. The rollers of this utility model can be locked onto the I-beams, which helps the mold-moving trolley to move stably along the sliding track.

[0020] 6. The formwork moving trolley device of this utility model can simplify the construction steps of the traditional cast-in-place box girder outer formwork turnover, improve construction efficiency, and can be used multiple times to reduce costs.

[0021] 7. The mold moving trolley device of this utility model is processed, manufactured and assembled in the processing workshop, and no further adjustments are required on site, thus ensuring a certain level of structural strength.

[0022] 8. The mold moving trolley and sliding track of this utility model are both welded, and the traction equipment is a winch. The mechanical parts and power parts are arranged separately, the force is clear, the setting is simple, and it is easy to use and maintain.

[0023] 9. This utility model has good practicality, economic benefits, and social benefits, and has broad market prospects. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the structure of the mold-moving trolley of this utility model; Figure 3 This is a schematic diagram of the roller assembly of this utility model; Figure 4 This is a cross-sectional view of the roller assembly of this utility model; The attached figures are labeled as follows: 1. Shifting trolley; 2. Sliding track; 3. Winch; 11. Main frame of the trolley; 12. Roller assembly; 13. Reinforcing member; 14. Connecting block; 21. I-beam assembly; 111. Horizontal main rod; 112. Longitudinal main rod; 113. Horizontal secondary rod; 114. Longitudinal secondary rod; 115. Accommodation space; 121. Outer connecting plate; 122. Inner connecting plate; 123. Roller; 124. Bearing; 125. Connecting shaft; 211. I-beam; 1231. Main roller part; 1232. Abutment part. Detailed Implementation

[0025] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0026] like Figures 1-4 As shown, a formwork trolley device for longitudinal sliding of steel formwork on the outer side of a cast-in-place box girder includes a formwork trolley 1, a sliding track 2, and a winch 3. The sliding track 2 is correspondingly arranged on the longitudinal sliding axis of the steel formwork. The formwork trolley 1 is arranged on the sliding track 2. The formwork trolley 1 can support the steel formwork. The end of the formwork trolley 1 away from the steel formwork is connected to the winch 3 for dragging the formwork trolley 1.

[0027] Specifically, after one section of the steel formwork on the outside of the cast-in-place box girder is loosened, it can be lowered onto the formwork moving trolley 1. Driven by the winch 3, the formwork moving trolley 1 can detach the steel formwork section from the cast-in-place box girder along the sliding track 2 and transport it to the predetermined position. Furthermore, the formwork trolley 1 then travels along the sliding track 2 to transport the next section of steel formwork to the cast-in-place box girder, and cyclically transports steel formwork at different positions; the steel formwork moved to the predetermined position can then be reused in other cast-in-place box girders.

[0028] In this utility model, the sliding track 2 is laid according to the longitudinal sliding axis position of the steel formwork. Therefore, the route of the formwork trolley 1 to transport the steel formwork is determined. Compared with the crane lifting the steel formwork, the construction risk is smaller and the efficiency is higher. Compared with the use of mobile formwork, it can be used for more cast-in-place box girders with different structures. It is beneficial to use the formwork trolley device in construction sections where the box girder structure changes multiple times.

[0029] The structure of the steel formwork is not easily damaged when it is handled, so the steel formwork can be reused in other cast-in-place box girders.

[0030] like Figures 2-4 As shown, the structure of the mold-moving trolley 1 is explained in detail.

[0031] The mold transfer trolley 1 includes a trolley main frame 11 and roller assemblies 12 located around the trolley main frame 11. The trolley main frame 11 includes a transverse main rod 111, a longitudinal main rod 112, a transverse secondary rod 113, and a longitudinal secondary rod 114. The two transverse main rods 111, which are symmetrically arranged from left to right, are connected by two longitudinal main rods 112, which are symmetrically arranged from front to back. The transverse main rods 111 and the transverse secondary rods 113 are connected by the longitudinal secondary rods 114. A receiving space 115 for mounting the roller assemblies 12 is formed between the longitudinal main rods 112 and the transverse secondary rods 113.

[0032] The mold moving trolley 1 also includes a reinforcing member 13 and a connecting block 14. The reinforcing member 13 is disposed between the inner wall of the transverse main rod 111 and the inner wall of the longitudinal main rod 112. The connecting block 14 is fixedly disposed on the transverse secondary rod 113. The connecting block 14 is also provided with a round hole for easy pulling of the hoisting rope of the winch 3.

[0033] The transverse main rod 111, the longitudinal main rod 112, the transverse secondary rod 113, the longitudinal secondary rod 114, the reinforcing member 13, and the connecting block 14 are welded together.

[0034] The distance between the two symmetrically arranged transverse main rods 111 is less than 1 / 2 of the length of the trolley main frame 11.

[0035] The roller assembly 12 is installed after the main frame 11 of the vehicle is assembled. When the two are not assembled, the main frame 11 of the vehicle and the roller assembly 12 are independent entities. They do not affect the strength and stability of the main frame 11 of the vehicle itself, and the roller assembly 12 is convenient to adjust its vertical position on the main frame 11 of the vehicle.

[0036] Specifically, the trolley main frame 11 is formed by connecting the transverse main rod 111, the longitudinal main rod 112, the transverse secondary rod 113, and the longitudinal secondary rod 114. The connection of the transverse main rod 111 and the transverse secondary rod 113 through the longitudinal secondary rod 114 enhances the strength of the trolley main frame 11. At the same time, it also makes the trolley main frame 11 longer so that it can support steel formwork of various sizes. Furthermore, the spacing between the symmetrical transverse main rods 111 is limited, so that there are no large gaps inside the main frame 11 of the trolley, making it less likely for the steel formwork supported by the main frame 11 of the trolley to fall out from the gaps between the various components. Furthermore, the reinforcement 13 strengthens the strength between the transverse main rod 111 and the longitudinal main rod 112, improving the overall strength of the trolley main frame 11 and ensuring the stability of the trolley main frame 11 during transportation.

[0037] This utility model divides the mold transfer carriage 1 into two parts: the carriage main frame 11 and the roller assembly 12. On the one hand, the roller assembly 12 can be adjusted on the carriage main frame 11 without affecting the structure of the carriage main frame 11. On the other hand, it ensures that the carriage main frame 11 formed by the integral connection has stable strength.

[0038] This utility model forms a trolley main frame 11 by connecting a transverse main rod 111, a longitudinal main rod 112, a transverse secondary rod 113, and a longitudinal secondary rod 114, which ensures the strength of the trolley main frame 11. The reinforcing parts 13 on it further strengthen the trolley main frame 11, and the connecting block 14 located on the trolley main frame 11 facilitates the dragging of the mold moving trolley 1.

[0039] like Figures 1-4 As shown, the structure of the sliding track 2 and the roller assembly 12 and their cooperative use are explained in detail.

[0040] The sliding track 2 includes at least two parallel H-beam assemblies 21, each H-beam assembly 21 comprising a plurality of H-beams 211, with adjacent H-beams 211 welded together.

[0041] The roller assembly 12 includes an outer connecting plate 121, an inner connecting plate 122, a roller 123, a bearing 124, and a connecting shaft 125. The bearing 124 is located inside the roller 123. The connecting shaft 125 passes through the bearing 124 and its two ends are fixed to the outer connecting plate 121 and the inner connecting plate 122, respectively. The two ends of the outer connecting plate 121 are respectively disposed on the outer walls of the longitudinal main rod 112 and the transverse secondary rod 113. The two ends of the inner connecting plate 122 are respectively disposed on the inner walls of the longitudinal main rod 112 and the transverse secondary rod 113.

[0042] Preferably, the two ends of the connecting shaft 125 are fixed on the outer connecting plate 121 and the inner connecting plate 122, respectively. One end of the connecting shaft 125 passes through the outer connecting plate 121 and the inner connecting plate 122, and one end is limited by a fixing member located on the outer connecting plate 121 or the inner connecting plate 122. Correspondingly, the other end of the connecting shaft 125 is also fixed.

[0043] The roller 123 includes a main roller portion 1231 and abutment portions 1232 located on both sides of the main roller portion 1231. The main roller portion 1231 abuts against the top of the I-beam 211, and the abutment portions 1232 abut against the side wall of the I-beam 211.

[0044] The bottom of the main roller section 1231 is lower than the bottom of the trolley main frame 11.

[0045] Specifically, by adjusting the connecting shaft 125 on the outer connecting plate 121 and the inner connecting plate 122, the roller 123 and bearing 124 connected to it are also adjusted accordingly. Consequently, the positions of the roller 123 and the main frame 11 of the trolley are also changed, so that the roller 123 can contact the sliding track 2 before the main frame 11 of the trolley, and so that the main frame 11 of the trolley can move on the sliding track 2 under the drive of the roller 123. Secondly, the roller 123 includes a main roller part 1231 and an abutment part 1232 with different diameters, which makes it easy for the roller 123 to be locked on the I-beam 211 and facilitates the stable movement of the mold moving trolley 1 along the sliding track 2.

[0046] The roller 123 of this invention can be locked onto the I-beam 211, which is beneficial for the mold moving trolley 1 to move stably along the sliding track 2.

[0047] Specifically, a formwork transfer trolley device for longitudinal sliding of the outer steel formwork of a cast-in-place box girder includes the following steps: Step 1: Determine the installation position of the outer steel formwork and design the longitudinal sliding axis of the steel formwork according to the design drawings of the cast-in-place box girder; Step 2: The machining workshop completes the cutting and assembly of each component of the mold transfer trolley 1, and completes the on-site acceptance. Step 3: Based on the longitudinal sliding axis of the steel formwork and the wheel track of the formwork trolley 1, the sliding track 2 is laid using I-beams 211. The formwork trolley 1 is required to be sturdy and able to smoothly match the longitudinal sliding axis of the steel formwork. The winch 3 is fixed at the end of the sliding track 2. Step 4: Lift the formwork moving trolley 1 onto the sliding track 2, slide it under the steel formwork to be transferred, loosen the steel formwork backing structure, and lower the steel formwork onto the formwork moving trolley 1; Step 5: Start the winch 3 to transport the formwork trolley 1 along with the steel formwork to the predetermined position. After the transportation of this section of steel formwork is completed, the formwork trolley 1 returns to transport the next section of steel formwork. Step 6: After completing the longitudinal movement of the steel formwork, lift the formwork trolley 1 away and remove the winch 3 and the original sliding track 2.

[0048] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention; therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

[0049] Although this document uses numerous reference numerals from the accompanying drawings, such as: 1. Mold-moving trolley; 2. Sliding track; 3. Winch; 11. Trolley main frame; 12. Roller assembly; 13. Reinforcing member; 14. Connecting block; 21. I-beam assembly; 111. Transverse main rod; 112. Longitudinal main rod; 113. Transverse secondary rod; 114. Longitudinal secondary rod; 115. Accommodating space; 121. Outer connecting plate; 122. Inner connecting plate; 123. Roller; 124. Bearing; 125. Connecting shaft; 211. I-beam; 1231. Main roller part; 1232. Abutment part, etc., the possibility of using other terms is not excluded. These terms are used merely for the convenience of describing and explaining the essence of this utility model; interpreting them as any additional limitation would contradict the spirit of this utility model.

Claims

1. A formwork trolley device for longitudinal sliding of the outer steel formwork of a cast-in-place box girder, characterized in that, It includes a formwork moving trolley (1), a sliding track (2) and a winch (3). The sliding track (2) is correspondingly set on the longitudinal sliding axis of the steel formwork. The formwork moving trolley (1) is set on the sliding track (2). The formwork moving trolley (1) can support the steel formwork. The end of the formwork moving trolley (1) away from the steel formwork is connected to the winch (3) for dragging the formwork moving trolley (1).

2. The formwork trolley device for longitudinal sliding of the outer steel formwork of a cast-in-place box girder according to claim 1, characterized in that, The sliding track (2) includes at least two parallel I-beam assemblies (21), each I-beam assembly (21) comprising a plurality of I-beams (211), which are welded together with each other.

3. The formwork trolley device for longitudinal sliding of the outer steel formwork of a cast-in-place box girder according to claim 1, characterized in that, The moving mold trolley (1) includes a trolley main frame (11) and roller assemblies (12) located around the trolley main frame (11). The trolley main frame (11) includes a transverse main rod (111), a longitudinal main rod (112), a transverse secondary rod (113), and a longitudinal secondary rod (114). The two transverse main rods (111) arranged symmetrically on the left and right are connected by two longitudinal main rods (112) arranged symmetrically on the front and back. The transverse main rod (111) and the transverse secondary rod (113) are connected by the longitudinal secondary rod (114). A receiving space (115) for installing the roller assembly (12) is formed between the longitudinal main rod (112) and the transverse secondary rod (113).

4. A formwork trolley device for longitudinal sliding of the outer steel formwork of a cast-in-place box girder according to claim 3, characterized in that, The mold moving trolley (1) also includes a reinforcing member (13) and a connecting block (14). The reinforcing member (13) is disposed between the inner wall of the transverse main rod (111) and the inner wall of the longitudinal main rod (112). The connecting block (14) is fixedly disposed on the transverse secondary rod (113).

5. A formwork trolley device for longitudinal sliding of the outer steel formwork of a cast-in-place box girder according to claim 4, characterized in that, The transverse main rod (111), longitudinal main rod (112), transverse secondary rod (113), longitudinal secondary rod (114), reinforcement (13), and connecting block (14) are welded together.

6. A formwork trolley device for longitudinal sliding of the outer steel formwork of a cast-in-place box girder according to claim 3, characterized in that, The distance between the two symmetrically arranged transverse main rods (111) is less than 1 / 2 of the length of the main frame (11) of the trolley.

7. A formwork trolley device for longitudinal sliding of the outer steel formwork of a cast-in-place box girder according to claim 3, characterized in that, The roller assembly (12) includes an outer connecting plate (121), an inner connecting plate (122), a roller (123), a bearing (124), and a connecting shaft (125). The bearing (124) is located inside the roller (123). The connecting shaft (125) passes through the bearing (124) and its two ends are fixed on the outer connecting plate (121) and the inner connecting plate (122), respectively. The two ends of the outer connecting plate (121) are respectively set on the outer walls of the longitudinal main rod (112) and the transverse secondary rod (113). The two ends of the inner connecting plate (122) are respectively set on the inner walls of the longitudinal main rod (112) and the transverse secondary rod (113).

8. A formwork trolley device for longitudinal sliding of the outer steel formwork of a cast-in-place box girder according to claim 7, characterized in that, The roller (123) includes a main roller portion (1231) and abutment portions (1232) located on both sides of the main roller portion (1231). The main roller portion (1231) abuts against the top of the I-beam (211), and the abutment portions (1232) abut against the side wall of the I-beam (211).

9. A formwork trolley device for longitudinal sliding of the outer steel formwork of a cast-in-place box girder according to claim 8, characterized in that, The bottom of the main roller section (1231) is lower than the bottom of the main frame (11) of the trolley.

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