Hydraulic jacking moving trolley

Abstract

The invention provides a hydraulic jacking moving trolley which is provided with two balance beams for bearing heavy objects, each balance beam is jacked by a plurality of jacking oil cylinders which are arranged at equal intervals, and enough jacking bearing capacity for large heavy objects is guaranteed. The buttress structures are arranged below the first balance beam and the second balance beam, the cushion block driving structures capable of being inserted into and retreated from the buttress structures are arranged, after cushion blocks are inserted into the buttress structures, the jacking oil cylinders can relieve pressure, and the cushion blocks and the buttress structures form a hard support to stably and powerfully support the balance beams. The structure of the first cushion block and the second cushion block which are stacked up and down is adopted, so that the first cushion block and the second cushion block can be stacked up and down in the space between the first balance beam and the second balance beam in a non-supporting state, the occupied area between the first balance beam and the second balance beam is reduced, and the occupied space is reduced; therefore, the width of the first balance beam and the width of the second balance beam can be increased, and the heavy object bearing effect is improved.

Description

Technical Field

[0001] This invention belongs to the technical field of rail transport devices, specifically relating to a hydraulic lifting and transferring trolley. Background Technology

[0002] Rail-mounted transport trolleys are handling equipment that travels on tracks laid on the ground to transport heavy objects. For large precast concrete components (such as precast concrete caissons, precast concrete piers, and precast concrete bridges), their weight is enormous, reaching thousands or even tens of thousands of tons. Therefore, ensuring sufficient load-bearing and transport capacity for large precast concrete components, and guaranteeing stability and safety during transportation, is a technical problem that needs to be solved. Summary of the Invention

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a hydraulic lifting and transfer trolley.

[0004] This invention is achieved through the following technical solution: A hydraulic lifting and transport trolley includes a trolley body, with two rows of track wheels symmetrically arranged on the bottom of the trolley body, and a first balance beam and a second balance beam arranged on the upper part of the trolley body. Each balance beam is connected to the trolley body through multiple spaced lifting cylinders, and the lifting and lowering of the balance beam is controlled by the lifting cylinders. A first upper support and a first lower support are provided between two adjacent lifting cylinders below the first balance beam, and a second upper support is provided between two adjacent lifting cylinders below the second balance beam; the first upper support is fixedly connected to the lower part of the first balance beam, the first lower support is fixedly connected to the top plate of the trolley body; the second upper support is fixedly connected to the lower part of the second balance beam. A first pad and a second pad are provided in the area between the first balance beam and the second balance beam. The first pad and the second pad are stacked on top of each other, and the width of the first lower support is greater than the width of the first upper support. The left end of the first pad slides onto the upper surface of the first lower support, and the second pad slides on the top plate of the trolley body. The number of the first pads is multiple, and they are arranged at equal intervals along the length of the trolley body. Each first pad is located in the space between two adjacent lifting cylinders of the first balance beam, and all the first pads are connected by a first connecting frame structure. The two ends of the first connecting frame structure are connected to the first pad drive cylinders, which are used to drive all the first pads to insert outward between the first upper support and the first lower support or to withdraw inward between the first upper support and the first lower support. The number of the second pads is multiple, and they are arranged at equal intervals along the length of the trolley body. Each second pad is located in the space between two adjacent lifting cylinders of the second balance beam, and all the second pads are connected by a second connecting frame structure. The two ends of the second connecting frame structure are connected to the second pad drive cylinders, which are used to drive all the second pads to insert outward between the second upper support and the top plate of the trolley body or to withdraw inward between the second upper support and the top plate of the trolley body.

[0005] In the above technical solution, the trolley body adopts a long box-shaped body as its base.

[0006] In the above technical solution, a retaining flange is provided on the inner side of the track wheel to prevent the trolley body from derailing.

[0007] In the above technical solution, both the first pad block drive cylinder and the second pad block drive cylinder are arranged along the width direction of the trolley body.

[0008] In the above technical solution, when the first pad is inserted outward between the first upper support and the first lower support, the support structure composed of the first upper support, the first pad, and the first lower support provides stable and strong support for the first balance beam.

[0009] In the above technical solution, when the second pad is inserted outward between the second upper support and the top plate of the trolley body, the support structure composed of the second upper support and the second pad provides stable and strong support for the second balance beam.

[0010] In the above technical solution, the height of the second upper support is equal to the sum of the height of the first upper support and the height of the first lower support, and the height of the first pad block and the second pad block are equal. This ensures that the height of the first balance beam and the second balance beam are equal whether they are in a falling state or in a raised support state.

[0011] In the above technical solution, the entire hydraulic lifting and transport trolley is composed of multiple trolley bodies spliced ​​together.

[0012] In the above technical solution, an end plate is provided at the end of the trolley body, and then the end plates of two adjacent trolley bodies are connected by bolts to realize the splicing of the two trolley bodies.

[0013] The advantages and beneficial effects of this invention are as follows: The hydraulic lifting and transport trolley of the present invention has two load-bearing platforms (i.e., a first balance beam and a second balance beam). Each balance beam is lifted by multiple lifting cylinders arranged at equal intervals, ensuring sufficient lifting and load-bearing capacity for large heavy objects.

[0014] Support structures are installed below the first and second balance beams, along with a pad drive structure capable of inserting and retracting the support structures. When a pad is inserted into the support structure, the lifting cylinder can release pressure, and the pad and support structures form a "rigid support" that provides stable and strong support to the balance beams. The key design feature of this invention is that the support structures below the first and second balance beams are different (the first balance beam has a first upper support and a first lower support, while the second balance beam only has a second upper support). Furthermore, a stacked first and second pad structure is used, allowing the first and second pads to be stacked in the space between the first and second balance beams in an unsupported state. This reduces the floor space occupied between the first and second balance beams, thereby increasing their width (i.e., less space is needed to accommodate the first and second pads, allowing for a larger design width), thus improving the load-bearing capacity. Attached Figure Description

[0015] Figure 1 This is a front view of the hydraulic lifting and transport trolley of the present invention.

[0016] Figure 2 This is a top view of the hydraulic lifting and transport trolley of the present invention.

[0017] Figure 3 This is a right-side sectional view of the hydraulic lifting and transport trolley of the present invention (the lifting cylinder is in the retracted rotation state).

[0018] Figure 4 This is a right-side sectional view of the hydraulic lifting and transport trolley of the present invention (the lifting cylinder is in the lifting and rotating state).

[0019] Figure 5 This is a right-side sectional view of the hydraulic lifting and transport trolley of the present invention (the first pad and the second pad are in a supporting state). Detailed Implementation

[0020] To enable those skilled in the art to better understand the present invention, the technical solution of the present invention will be further described below with reference to specific embodiments.

[0021] This invention designs a hydraulic lifting and transfer trolley, see appendix. Figure 1 and attached Figure 5 The system includes a trolley body 1, which is based on a long box-shaped body. Two rows of track wheels 2 are symmetrically arranged on the bottom of the trolley body 1. These two rows of track wheels 2 are respectively mounted on two parallel steel rails 100, thus enabling the trolley body 1 to move smoothly on the steel rails 100. Furthermore, flanges are provided on the inner side of the track wheels 2 (see appendix). Figure 3To prevent the trolley body 1 from derailing, two balance beams, namely the first balance beam 31 and the second balance beam 32, are installed on the upper part of the trolley body 1. These two balance beams are located directly above the two steel rails 100, respectively. The two balance beams are used to support the object to be transported (i.e., the object to be transported is placed on the balance beams). Each balance beam is connected to the trolley body 1 through multiple spaced lifting cylinders 4. The lifting of the balance beam is controlled by the lifting cylinders 4. These lifting cylinders 4 are connected to the hydraulic station in parallel to ensure that the load on each lifting cylinder is consistent and to ensure the stability of the balance beam.

[0022] Furthermore, pads are provided on the top surfaces of the first balance beam 31 and the second balance beam 32 to prevent damage to the objects to be transported.

[0023] A first upper support 51 and a first lower support 52 are provided between two adjacent lifting cylinders 4 below the first balance beam 31, and a second upper support 53 is provided between two adjacent lifting cylinders 4 below the second balance beam 32. The first upper support 51 is fixedly connected to the lower part of the first balance beam 31, and the first lower support 52 is located below the first upper support 51, but the two are not connected. The first lower support 52 is fixedly connected to the top plate 11 of the trolley body 1. The second upper support 53 is fixedly connected to the lower part of the second balance beam 32, but the second upper support 53 is not connected to the top plate 11 of the trolley body 1.

[0024] A first pad 61 and a second pad 62 are provided in the area between the first balance beam 31 and the second balance beam 32. The first pad 61 and the second pad 62 are stacked on top of each other (i.e., the first pad 61 is located on the upper layer of the second pad 62). The width of the first lower support 52 is greater than the width of the first upper support 51 (the width here refers to the width direction along the rail 100) so that the left end of the first pad 61 slides onto the upper surface of the first lower support 52, while the second pad 62 is slidably set on the top plate 11 of the trolley body 1. The height of the second pad 62 is the same as the height of the first lower support 52.

[0025] There are multiple first pad blocks 61, arranged at equal intervals along the length of the rail 100. Each first pad block 61 is located in the space between two adjacent lifting cylinders 4 of the first balance beam 31, and all the first pad blocks 61 are connected by a first connecting frame structure 71. The two ends of the first connecting frame structure 71 are connected to first pad block drive cylinders 81. The first pad block drive cylinders 81 are arranged along the width of the trolley body 1 and are used to drive the first connecting frame structure 71 and all the first pad blocks 61 to insert outward into the first upper support. Between the first upper support 51 and the first lower support 52 (when the first balance beam 31 is in the raised state) or between the first upper support 51 and the first lower support 52, when the first pad 61 is inserted outward between the first upper support 51 and the first lower support 52, the lifting cylinder 4 of the first balance beam 31 is depressurized and lowered, causing the first upper support 51 to fall on the first pad 61. At this time, the support structure composed of the first upper support 51, the first pad 61 and the first lower support 52 provides stable and strong support for the first balance beam 31.

[0026] Similarly, there are multiple second pad blocks 62, arranged at equal intervals along the length of the rail 100. Each second pad block 62 is located in the space between two adjacent lifting cylinders 4 of the second balance beam 32, and all the second pad blocks 62 are connected by a second connecting frame structure 72. The two ends of the second connecting frame structure 72 are connected to second pad block drive cylinders 82. The second pad block drive cylinders 82 are arranged along the width of the trolley body 1 and are used to drive the second connecting frame structure 72 and all the second pad blocks 62 to insert outwards into the first... Between the second upper support 53 and the top plate 11 of the trolley body 1 (when the second balance beam 32 is in the raised state) or between the second upper support 53 and the top plate 11 of the trolley body 1, when the second pad 62 is inserted outward between the second upper support 53 and the top plate 11 of the trolley body 1, the lifting cylinder 4 of the second balance beam 32 is depressurized and lowered, so that the second upper support 53 falls on the second pad 62. At this time, the support structure composed of the second upper support 53 and the second pad 62 provides stable and strong support for the second balance beam 32.

[0027] The height of the second upper support 53 is equal to the sum of the heights of the first upper support 51 and the first lower support 52. Since the heights of the first pad 61 and the second pad 62 are equal, the heights of the first balance beam 31 and the second balance beam 32 are equal whether they are in a falling state or in a raised support state.

[0028] Furthermore, the length of the trolley body 1 and the number of lifting cylinders 4 for each balance beam are determined according to actual needs; such as Figure 1 As shown, exemplarily, an implementation is illustrated where each balance beam is supported by seven lifting cylinders 4. The entire hydraulic lifting and transfer trolley can be assembled from multiple trolley bodies 1, as... Figure 1As shown, an end plate 91 is provided at the end of a single trolley body 1, and then the end plates of two adjacent trolley bodies 1 are connected by bolts to realize the splicing of two trolley bodies 1.

[0029] Furthermore, one end of the trolley body 1 is provided with a connecting lug 92 for connecting a translation cylinder, the other end of which is connected to a hydraulic rail clamp. During operation, the hydraulic lifting and transport trolley of this invention lifts the large precast component from the pedestal to the required height, then drives the first pad 61 and the second pad 62 to push outwards, providing stable support for the first balance beam 31 and the second balance beam 32 (the lifting cylinder 4 can be depressurized), thereby stably supporting the large precast component. Then, after the hydraulic rail clamp clamps and fixes the rail 100, the translation cylinder extends, pushing the hydraulic lifting and transport trolley of this invention forward along the rail 100. Then, the hydraulic rail clamp releases, the translation cylinder retracts and resets, driving the hydraulic rail clamp forward. Then, the hydraulic rail clamp clamps and fixes the rail 100 again, the translation cylinder extends, and continues to push the hydraulic lifting and transport trolley of this invention forward along the rail 100. Thus, the on-rail step-by-step movement of the hydraulic lifting and transport trolley is realized.

[0030] For ease of explanation, spatial relative terms such as “up,” “down,” “left,” and “right” are used in the embodiments to describe the relationship of one element or feature shown in the figures relative to another element or feature. It should be understood that, in addition to the orientations shown in the figures, spatial terms are intended to include different orientations of the device in use or operation. For example, if the device in the figures is inverted, an element described as being “down” of other elements or features would be positioned “up” of those other elements or features. Therefore, the exemplary term “down” can encompass both up and down orientations. The device may be positioned in other ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0031] Moreover, relational terms such as “first” and “second” are used merely to distinguish one component from another that has the same name, without necessarily requiring or implying any such actual relationship or order between the components.

[0032] The present invention has been described above by way of example. It should be noted that any simple modifications, alterations or other equivalent substitutions that can be made by those skilled in the art without creative effort without departing from the core of the present invention fall within the protection scope of the present invention.

Claims

1. A hydraulic jacking transfer trolley characterised by: The trolley body includes two rows of track wheels symmetrically arranged on the bottom of the trolley body. A first balance beam and a second balance beam are arranged on the upper part of the trolley body. Each balance beam is connected to the trolley body through multiple spaced lifting cylinders. A first upper support and a first lower support are provided between two adjacent lifting cylinders below the first balance beam, and a second upper support is provided between two adjacent lifting cylinders below the second balance beam; the first upper support is fixedly connected to the lower part of the first balance beam, the first lower support is fixedly connected to the top plate of the trolley body; the second upper support is fixedly connected to the lower part of the second balance beam. A first pad and a second pad are provided in the area between the first balance beam and the second balance beam. The first pad and the second pad are stacked on top of each other, and the width of the first lower support is greater than the width of the first upper support. The left end of the first pad slides onto the upper surface of the first lower support, and the second pad slides on the top plate of the trolley body. The number of the first pads is multiple, and they are arranged at equal intervals along the length of the trolley body. Each first pad is located in the space between two adjacent lifting cylinders of the first balance beam, and all the first pads are connected by a first connecting frame structure. The two ends of the first connecting frame structure are connected to the first pad drive cylinder. The number of the second pads is multiple, and they are arranged at equal intervals along the length of the trolley body. Each second pad is located in the space between two adjacent lifting cylinders of the second balance beam, and all the second pads are connected by a second connecting frame structure. The two ends of the second connecting frame structure are connected to the second pad drive cylinders.

2. The hydraulic jacking transfer trolley as claimed in claim 1, wherein: The trolley body is based on a long box-shaped body.

3. The hydraulic lift and transport pallet according to claim 1, characterized in that: An inner flange is provided on the track wheel to prevent the trolley body from derailing.

4. The hydraulic lift and transport pallet according to claim 1, characterized in that: The first and second pad block drive cylinders are both arranged along the width direction of the trolley body.

5. The hydraulic lift and transport pallet according to claim 1, characterized in that: When the first pad is inserted outward between the first upper support and the first lower support, the support structure composed of the first upper support, the first pad, and the first lower support provides stable and strong support for the first balance beam.

6. The hydraulic lift and transport pallet according to claim 1, characterized in that: When the second pad is inserted outward between the second upper support and the top plate of the trolley body, the support structure composed of the second upper support and the second pad provides stable and strong support for the second balance beam.

7. The hydraulic lift and transport pallet according to claim 1, characterized in that: The height of the second upper support is equal to the sum of the height of the first upper support and the height of the first lower support, and the heights of the first pad block and the second pad block are equal.

8. The hydraulic lift and transport pallet according to claim 1, characterized in that: The entire hydraulic lifting and transport trolley is composed of multiple trolley bodies spliced ​​together.

9. The hydraulic jacking transfer pallet according to claim 8, characterized in that: End plates are installed at the ends of the trolley body, and then the end plates of two adjacent trolley bodies are connected by bolts to achieve splicing of the two trolley bodies.

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