Liftable prefabricated beam prestress tension trolley

Abstract

The utility model discloses a liftable precast beam prestress tension trolley, including car body, vertical height adjusting rod, transverse track, longitudinal track and electric hoist, vertical height adjusting rod is respectively first vertical height adjusting rod and second vertical height adjusting rod, and the first vertical height adjusting rod top is bent into horizontal rod and is connected with the second vertical height adjusting rod top in the middle part of horizontal rod, and the transverse track is arranged respectively in the longitudinal both sides of horizontal rod, and the longitudinal both sides of longitudinal track are all installed on two transverse tracks through electric car respectively, and the electric hoist is installed on longitudinal track through electric car, vertical height adjusting rod includes outer pole and inner pole, and the inner pole is installed in the outer pole and is fixed through bolt structure, and the outer pole and inner pole are all composed of two channel steel and a plurality of patch plate. The utility model has the advantages of: the height adjustment of trolley is realized, can adapt to different types and different height's precast beam, guarantees the smooth operation of construction.

Description

Technical Field

[0001] This utility model relates to the technical field of prestressed tensioning equipment for precast beams, and in particular to a liftable prestressed tensioning trolley for precast beams. Background Technology

[0002] A prestressed tensioning trolley for precast beams is a specialized mobile device used to apply prestress during the construction of precast beams. It tensions the prestressed steel strands through a hydraulic or mechanical system, inducing compressive stress in the concrete beam before it bears a load, thereby improving the structure's crack resistance and load-bearing capacity. This equipment is commonly used on-site for the production of large precast components such as bridges and buildings, and is characterized by high efficiency, precision, and mobility.

[0003] The existing prestressed tensioning trolley for precast beams mainly consists of a main frame, a walking system, a tensioning device, a control system, an auxiliary support structure, safety devices, and a guiding and positioning system. The main frame is a rigid frame welded from high-strength steel and is usually designed as a modular structure for easy transportation and assembly. However, the main frame generally cannot be height-adjusted, making it unsuitable for different types and heights of precast beams, which in turn affects the construction progress. Summary of the Invention

[0004] The purpose of this utility model is to address the shortcomings of the existing technology by providing a liftable prestressed beam tensioning trolley. The trolley consists of a car body, a vertical height adjustment rod, a transverse track, a longitudinal track, and an electric hoist. The vertical height adjustment rod enables the adjustment of the trolley's height, allowing it to adapt to different types and heights of precast beams and ensuring smooth construction.

[0005] The objective of this utility model is achieved through the following technical solution: A liftable prestressed beam tensioning trolley includes a car body, vertical height adjusting rods, transverse rails, longitudinal rails, and an electric hoist. The vertical height adjusting rods are a first vertical height adjusting rod and a second vertical height adjusting rod. Multiple first vertical height adjusting rods are spaced laterally along the horizontal direction and are all located on one longitudinal side of the top of the car body. Multiple second vertical height adjusting rods are also spaced laterally along the horizontal direction and are all located on the other longitudinal side of the top of the car body. The top of each first vertical height adjusting rod is bent into a horizontal bar, and the middle of this horizontal bar connects to the top of the second vertical height adjusting rod. The transverse rails are respectively located on the... The horizontal bar has two longitudinal sides, and the longitudinal rail is mounted on the two transverse rails via electric trolleys. The electric hoist is mounted on the longitudinal rail via an electric trolley. The vertical height adjustment rod includes an outer rod and an inner rod. The inner rod is installed inside the outer rod and fixed by bolts. Both the outer rod and the inner rod are composed of two channel steels and several connecting plates. The two channel steels of the outer rod and the inner rod are arranged opposite each other. The relative arrangement direction of the two channel steels of the outer rod is perpendicular to the relative arrangement direction of the two channel steels of the inner rod. The two channel steels of the outer rod and the inner rod are connected by the connecting plates. Hand holes are provided on the two channel steels of the inner rod.

[0006] Fixed support legs are provided at the four corners of the vehicle body.

[0007] The fixed support leg includes a vertical hydraulic rod, a horizontal hydraulic rod, and an oblique hydraulic rod. The fixed end of the vertical hydraulic rod is fixedly connected to the moving end of the horizontal hydraulic rod. The moving end and the fixed end of the oblique hydraulic rod are respectively hinged to the moving end of the vertical hydraulic rod and the fixed end of the horizontal hydraulic rod.

[0008] A wire mesh is provided between the first vertical height adjusting rods.

[0009] The first vertical height adjustment rod is equipped with an infrared early warning device.

[0010] The top of the first vertical height adjustment rod is equipped with a rainproof canopy.

[0011] The vehicle body is equipped with wheels at the bottom and a drive motor at the top for driving the wheels.

[0012] Each of the first vertical height adjusting rods and the corresponding second vertical height adjusting rods is connected and fixed by four reinforcing longitudinal rods. The four reinforcing longitudinal rods are, from top to bottom, the first reinforcing longitudinal rod, the second reinforcing longitudinal rod, the third reinforcing longitudinal rod, and the fourth reinforcing longitudinal rod. The first reinforcing longitudinal rod and the second reinforcing longitudinal rod are connected by an X-shaped reinforcing rod. A tool placement platform is provided on the third reinforcing longitudinal rod.

[0013] The advantages of this invention are: it enables height adjustment of the trolley, which can adapt to different types and heights of precast beams, ensuring smooth construction. Attached Figure Description

[0014] Fig. 1 This is a front view of the liftable prestressed tensioning trolley for precast beams of this utility model; Fig. 2 This is a side view of the liftable prestressed tensioning trolley for precast beams of this utility model. Fig. 3 This is a plan view of the vertical height adjustment rod of this utility model; Fig. 4 This is an elevation view of the outer rod of this utility model; Fig. 5 This is a plan view of the outer rod of this utility model; Fig. 6 This is an elevation view of the inner rod of this utility model; Fig. 7 This is a plan view of the inner rod of this utility model; like Figs. 1-7 As shown in the figure, the markings represent: Vehicle body 10, traveling wheels 101, drive motor 102, vertical height adjustment rod 20, horizontal rod 201, outer rod 202, inner rod 203, channel steel 204, connecting plate 205, hand hole 206, bolt hole 207, bolt structure 208, transverse track 30, longitudinal track 40, electric hoist 50, electric trolley 60, fixed outrigger 70, vertical hydraulic rod 701, horizontal hydraulic rod 702, diagonal hydraulic rod 703, wire mesh 80, rainproof canopy 90, reinforcing longitudinal rod 100, X-shaped reinforcing rod 110, tool placement platform 120; Infrared scanning area a. Detailed Implementation

[0015] The features of this utility model and other related features will be further described in detail below with reference to the accompanying drawings and embodiments, so as to facilitate the understanding of those skilled in the art: Example: Figs. 1-7As shown, this embodiment relates to a liftable prestressed beam tensioning trolley. The trolley mainly includes a body 10, vertical height adjusting rods 20, a transverse track 30, a longitudinal track 40, and an electric hoist 50. The bottom of the body 10 is provided with traveling wheels 101, and the top of the body 10 is provided with a drive motor 102 for driving the traveling wheels 101. The vertical height adjusting rods 20 are divided into first vertical height adjusting rods and second vertical height adjusting rods. Three first vertical height adjusting rods are arranged at a horizontal interval, and all three first vertical height adjusting rods are located on one longitudinal side of the top of the body 10. Three second vertical height adjusting rods are arranged at a horizontal interval, and all three second vertical height adjusting rods are located on the other longitudinal side of the top of the body 10. The number and position of the second vertical height adjusting rods correspond to the number and position of the first vertical height adjusting rods, respectively. The top of the first vertical height adjusting rod is bent into a horizontal rod 201, and the middle of the horizontal rod 201 is connected to the top of the second vertical height adjusting rod. The vertical height adjustment rod 20 includes an outer rod 202 and an inner rod 203. The inner rod 203 is installed inside the outer rod 202 and fixed by a bolt structure 208, which includes bolts and nuts. Both the outer rod 202 and the inner rod 203 are composed of two channel steels 204 and several connecting plates 205. The two channel steels 204 of the outer rod 202 and the inner rod 203 are arranged opposite to each other. The relative arrangement direction of the two channel steels 204 of the outer rod 202 is perpendicular to the relative arrangement direction of the two channel steels 204 of the inner rod 203. That is, the two channel steels 204 of the outer rod 202 are arranged relatively longitudinally (or relatively laterally), and the two channel steels 204 of the inner rod 203 are arranged relatively laterally (or relatively laterally). (Vertically arranged), the two channel steels 204 of the outer rod 202 and the inner rod 203 are welded together by a connecting plate 205. Bolt holes 207 are opened on the connecting plate 205 and the channel steel 204 of the outer rod 202, and bolt holes 207 are opened on the channel steel 204 of the inner rod 203. The bolts pass through the bolt holes 207 of the connecting plate 205 of the outer rod 202, the bolt holes 207 of the channel steel 204 of the outer rod 202, and the bolt holes 207 of the channel steel 204 of the inner rod 203 in sequence, and cooperate with the nuts to fix the outer rod 202 and the inner rod 203. Hand holes 206 are opened on the two channel steels 204 of the inner rod 203 to facilitate the installation and removal of the bolt structure 208.

[0016] like Figs. 1-2As shown, each first vertical height adjusting rod and its corresponding second vertical height adjusting rod are connected and fixed by four reinforcing longitudinal rods 100. The four reinforcing longitudinal rods 100, from top to bottom, are the first, second, third, and fourth reinforcing longitudinal rods. The first and second reinforcing longitudinal rods are connected by an X-shaped reinforcing rod 110 for reinforcement. A tool placement platform 120 is provided on the third reinforcing longitudinal rod for placing tools. A wire mesh 80 is installed between the first vertical height adjusting rods to prevent accidents during tensioning from endangering personnel and equipment outside the trolley, and also to reduce wind resistance and improve the stability of the trolley. An infrared early warning device is installed on the first vertical height adjusting rod. During prestressing tensioning, no personnel are allowed in front of the tensioning equipment. When someone is detected in front of the tensioning equipment, the infrared early warning device can issue a timely warning. The infrared scanning area a of the infrared early warning device is shown in the image. Fig. 2 As shown. The top of the first vertical height adjustment rod is equipped with a rain shelter 90, which can protect against rain and dust and provide a comfortable operating space for tensioning operators.

[0017] like Figs. 1-2 As shown, there are two transverse rails 30, which are respectively located on both sides of the three horizontal bars 201. There are also two longitudinal rails 40, each of which is mounted on one of the two transverse rails 30 via an electric trolley 60. An electric hoist 50 is mounted on the longitudinal rail 40 via the electric trolley 60. The electric hoist 50 is used to lift the tensioning jack. The electric hoist 50 moves longitudinally along the longitudinal rail 40 to adjust the longitudinal position of the tensioning jack, and the longitudinal rail 40 moves laterally along the transverse rails 30 to adjust the lateral position of the tensioning jack.

[0018] like Fig. 2 As shown, fixed support legs 70 are provided at the four corners of the vehicle body 10. Each fixed support leg 70 includes a vertical hydraulic rod 701, a horizontal hydraulic rod 702, and an oblique hydraulic rod 703. The fixed end of the vertical hydraulic rod 701 is fixedly connected to the moving end of the horizontal hydraulic rod 702. The moving end and fixed end of the oblique hydraulic rod 703 are hinged to the moving end of the vertical hydraulic rod 701 and the fixed end of the horizontal hydraulic rod 702, respectively. When the trolley moves, the vertical hydraulic rod 701, horizontal hydraulic rod 702, and oblique hydraulic rod 703 are all in a retracted state, and the vertical hydraulic rod 701 is not in contact with the ground. When it is necessary to fix the trolley, the vertical hydraulic rod 701, horizontal hydraulic rod 702, and oblique hydraulic rod 703 extend (or both the vertical hydraulic rod 701 and oblique hydraulic rod 703 extend), allowing the vertical hydraulic rod 701 to support the ground, thereby lifting the traveling wheels 101 off the ground and fixing the trolley. The fixed support leg 70 in this embodiment has a triangular structure, which provides good stability. Furthermore, the support position of the fixed support leg 70 can be adjusted to adapt to different ground conditions.

[0019] The beneficial technical effects of this embodiment are: it enables the height adjustment of the trolley, which can adapt to different types and heights of precast beams, ensuring the smooth progress of construction.

[0020] Although the above embodiments have described the concept and embodiments of the present invention in detail with reference to the accompanying drawings, those skilled in the art will recognize that various improvements and modifications can still be made to the present invention without departing from the scope of the claims, and therefore will not be elaborated here.

Claims

1. A liftable prestressed tensioning trolley for precast beams, characterized in that... The system includes a vehicle body, vertical height adjusting rods, transverse rails, longitudinal rails, and an electric hoist. The vertical height adjusting rods are a first vertical height adjusting rod and a second vertical height adjusting rod. Multiple first vertical height adjusting rods are spaced laterally along the horizontal direction, and all are located on one longitudinal side of the top of the vehicle body. Multiple second vertical height adjusting rods are also spaced laterally along the horizontal direction, and all are located on the other longitudinal side of the top of the vehicle body. The top of each first vertical height adjusting rod is bent into a horizontal bar, and the middle of this horizontal bar connects to the top of the second vertical height adjusting rod. The transverse rails are respectively located on both longitudinal sides of the horizontal bar. On the side, both sides of the longitudinal track are respectively mounted on the two transverse tracks via electric trolleys, and the electric hoist is mounted on the longitudinal track via an electric trolley; the vertical height adjustment rod includes an outer rod and an inner rod, the inner rod is installed inside the outer rod and fixed by a bolt structure, the outer rod and the inner rod are both composed of two channel steels and several connecting plates, the two channel steels of the outer rod and the inner rod are arranged opposite each other, the relative arrangement direction of the two channel steels of the outer rod is perpendicular to the relative arrangement direction of the two channel steels of the inner rod, the two channel steels of the outer rod and the inner rod are connected by the connecting plates, and the two channel steels of the inner rod are provided with hand holes.

2. The liftable prestressed tensioning trolley for precast beams as described in claim 1, characterized in that... Fixed support legs are provided at the four corners of the vehicle body.

3. The lifting prestressed tensioning trolley for precast beams as described in claim 2, characterized in that... The fixed support leg includes a vertical hydraulic rod, a horizontal hydraulic rod, and an oblique hydraulic rod. The fixed end of the vertical hydraulic rod is fixedly connected to the moving end of the horizontal hydraulic rod. The moving end and the fixed end of the oblique hydraulic rod are respectively hinged to the moving end of the vertical hydraulic rod and the fixed end of the horizontal hydraulic rod.

4. The lifting prestressed tensioning trolley for precast beams as described in claim 1, characterized in that... A wire mesh is provided between the first vertical height adjusting rods.

5. A liftable prestressed tensioning trolley for precast beams as described in claim 1, characterized in that... The first vertical height adjustment rod is equipped with an infrared early warning device.

6. A liftable prestressed tensioning trolley for precast beams as described in claim 1, characterized in that... The top of the first vertical height adjustment rod is equipped with a rainproof canopy.

7. A liftable prestressed tensioning trolley for precast beams as described in claim 1, characterized in that... The vehicle body is equipped with wheels at the bottom and a drive motor at the top for driving the wheels.

8. A liftable prestressed tensioning trolley for precast beams as described in claim 1, characterized in that... Each of the first vertical height adjusting rods and the corresponding second vertical height adjusting rods is connected and fixed by four reinforcing longitudinal rods. The four reinforcing longitudinal rods are, from top to bottom, the first reinforcing longitudinal rod, the second reinforcing longitudinal rod, the third reinforcing longitudinal rod, and the fourth reinforcing longitudinal rod. The first reinforcing longitudinal rod and the second reinforcing longitudinal rod are connected by an X-shaped reinforcing rod. A tool placement platform is provided on the third reinforcing longitudinal rod.

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