Self-propelled hydraulic inverted arch trestle overall forward movement and positioning mechanism

Abstract

The present invention discloses a self-propelled hydraulic inverted arch trestle overall forward movement and positioning mechanism, comprising a longitudinal beam, a trestle channel, a cross beam and a controller, wherein two groups of driving blocks are provided at the bottom of the longitudinal beam, each of the two groups of driving blocks is composed of two driving blocks, and a fixing rod is fixedly connected between the two driving blocks, and the end surface of the driving block close to the bottom of the longitudinal beam is fixedly connected with a first driving motor and a third hydraulic push rod. In the present invention, a driving block is provided at the bottom of the longitudinal beam, a first driving motor is provided on the driving block, a driving wheel is provided on the first driving motor, a chute is provided at the bottom of the longitudinal beam, two driving blocks form a group, and two groups of driving blocks are provided at the bottom of the longitudinal beam. The advantage of adopting this design is that the first driving motor is controlled to be turned on by the controller, thereby rotating the driving wheel, and the driving block then moves along the chute, and the two groups of driving blocks move alternately, which can increase the moving speed of the longitudinal beam, thereby helping to improve the construction efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of inverted arch trestle bridges, in particular to a self-propelled hydraulic inverted arch trestle bridge integral forward movement and positioning mechanism. Background Art

[0002] The inverted arch trestle is a professional equipment for the full-width construction and filling of inverted arches in railway and highway tunnels. By using the inverted arch trestle to cross the inverted arch operation section during tunnel construction, various vehicles, equipment and personnel can pass normally on the trestle. At the same time, operations such as tying the steel bars of the tunnel inverted arch and pouring concrete for the inverted arch and filling are carried out under the trestle. This can reduce the interference between the excavation and transportation of the heading face and the construction of the inverted arch, and provide a small-scale flow operation working surface for the inverted arch construction, meeting the needs of one-time molding and rapid construction of the entire width of the tunnel inverted arch concrete.

[0003] At present, there are two types of trestles in China: simple trestles welded by the construction party and self-propelled hydraulic trestles. Simple trestles are low-cost but inconvenient to move; self-propelled trestles have walking devices, do not require external power such as loaders, have good safety, strong practicality, and high degree of automation.

[0004] Inverted arch trestles are often used in existing infrastructure construction, but the existing self-propelled hydraulic inverted arch trestles still have shortcomings. First, the existing trestles move slowly, which makes it take a long time for the trestles to reach the designated position at the construction site, thereby wasting time and reducing construction efficiency; secondly, there is no positioning mechanism on the existing trestles, which leads to a large error in the distance the trestles move. Summary of the invention

[0005] The purpose of the present invention is to solve the above-mentioned problems of the existing self-propelled hydraulic inverted arch trestle, such as slow moving speed and lack of positioning mechanism, and to propose a self-propelled hydraulic inverted arch trestle overall forward movement and positioning mechanism.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] The self-propelled hydraulic inverted arch trestle overall forward movement and positioning mechanism comprises a longitudinal beam, a trestle channel, a cross beam and a controller, two groups of drive blocks are provided at the bottom of the longitudinal beam, each of the two groups of drive blocks is composed of two drive blocks, and a fixed rod is fixedly connected between the two drive blocks, the end surface of the drive block close to the bottom of the longitudinal beam is fixedly connected to the first drive motor and the third hydraulic push rod, the output shaft of the first drive motor is drivingly connected to the drive wheel, the bottom end surface of the longitudinal beam is provided with a slide groove, the drive wheel can roll along the slide groove, and the telescopic end of the third hydraulic push rod is fixedly connected to the pressure block.

[0008] As a further description of the above technical solution:

[0009] The two groups of driving blocks are symmetrically arranged on both sides of the bottom end surface of the longitudinal beam, the driving blocks are slidably connected to the side surface walls of the longitudinal beam, and the driving blocks can move along the axial direction of the longitudinal beam.

[0010] As a further description of the above technical solution:

[0011] The driving wheel is rotatably connected to the driving block via a bearing.

[0012] As a further description of the above technical solution:

[0013] There are two longitudinal beams, and a plurality of cross beams arranged at equal intervals are welded between the two longitudinal beams.

[0014] As a further description of the above technical solution:

[0015] The same end of the two longitudinal beams is rotatably connected to a foldable support plate, and the folded parts of the two support plates are rotatably connected to support rods, the side wall of the longitudinal beam is fixedly connected to a second drive motor, the output shaft of the second drive motor is transmission-connected to the support plate, and a connecting rod is fixedly connected between the two support plates.

[0016] As a further description of the above technical solution:

[0017] Both ends of the longitudinal beam are fixedly connected with a second hydraulic push rod, and the bottom of the driving block is fixedly connected with a first hydraulic push rod.

[0018] As a further description of the above technical solution:

[0019] A groove is arranged on the top of the pressing block, and the pressing block is made of rubber material.

[0020] As a further description of the above technical solution:

[0021] The telescopic ends of the first hydraulic push rod and the second hydraulic push rod are both fixedly connected with a pressing plate.

[0022] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0023] 1. In the present invention, a driving block is arranged at the bottom of the longitudinal beam, a first driving motor is arranged on the driving block, a driving wheel is arranged on the first driving motor, a sliding groove is arranged at the bottom of the longitudinal beam, two driving blocks form a group, and two groups of driving blocks are arranged at the bottom of the longitudinal beam. The advantage of adopting this design is that the first driving motor is controlled to be turned on by a controller, thereby rotating the driving wheel, and the driving block then moves along the sliding groove. The two groups of driving blocks move alternately, which can increase the moving speed of the longitudinal beam, thereby helping to improve construction efficiency.

[0024] 2. In the present invention, a third hydraulic push rod is provided on the driving block, a pressure block is provided at the telescopic end of the third hydraulic push rod, and a groove is provided on the pressure block. The advantage of adopting this design is that when the longitudinal beam moves to a specified position, the third hydraulic push rod pushes the pressure block to fit the longitudinal beam, and then through the action of friction, the longitudinal beam can be quickly stopped, thereby facilitating accurate positioning of the longitudinal beam.

[0025] 3. In the present invention, a support plate is provided on the longitudinal beam, a support rod is provided on the support plate, and a second drive motor is provided on the longitudinal beam. The advantage of adopting this design is that the support rod helps to improve the structural strength of the support plate, and the support plate can be driven to rotate by the second drive motor, thereby shrinking it, which facilitates the transportation and movement of the longitudinal beam.

[0026] 4. In the present invention, the telescopic ends of the first hydraulic push rod and the second hydraulic push rod are both provided with pressure plates. The advantage of adopting this design is that the pressure plates can increase the contact area between the equipment and the ground, thereby preventing the equipment from sinking in soft soil and improving stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall side view structure of the inverted arch trestle in the present invention;

[0028] Figure 2 It is a schematic diagram of the overall top view structure of the inverted arch trestle in the present invention;

[0029] Figure 3 It is a schematic diagram of the connection structure between the driving block and the longitudinal beam in the present invention;

[0030] Figure 4 It is a schematic diagram of the side structure of the driving block in the present invention;

[0031] Figure 5 It is a schematic diagram of the connection structure between the support rod and the longitudinal beam in the present invention.

[0032] Legend:

[0033] 1. Longitudinal beam; 2. Driving block; 3. First driving motor; 4. Driving wheel; 5. Slide; 6. First hydraulic push rod; 7. Fixed rod; 8. Second hydraulic push rod; 9. Third hydraulic push rod; 10. Pressing block; 11. Groove; 12. Pressing plate; 13. Supporting plate; 14. Supporting rod; 15. Trestle channel; 16. Connecting rod; 17. Second driving motor; 18. Crossbeam; 19. Controller. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] Embodiment 1:

[0036] See also Figure 1 , Figure 2 , Figure 3 and Figure 4 The self-propelled hydraulic inverted arch trestle overall forward movement and positioning mechanism comprises a longitudinal beam 1, a trestle channel 15, a cross beam 18 and a controller 19. Two groups of driving blocks 2 are arranged at the bottom of the longitudinal beam 1. Each of the two groups of driving blocks 2 is composed of two driving blocks 2, and a fixing rod 7 is fixedly connected between the two driving blocks 2. The end surface of the driving block 2 close to the bottom of the longitudinal beam 1 is fixedly connected with a first driving motor 3 and a third hydraulic push rod 9. The output shaft of the first driving motor 3 is connected with a driving wheel 4 in a transmission manner. A slide groove 5 is provided on the bottom end surface of the longitudinal beam 1. The driving wheel 4 can roll along the slide groove 5. The telescopic end of the third hydraulic push rod 9 is fixedly connected with a pressing block 10. The two groups of driving blocks 2 are symmetrically arranged on both sides of the bottom end surface of the longitudinal beam 1. The driving blocks 2 are slidably connected to the side surface walls of the longitudinal beam 1, and the driving blocks 2 can move along the axial direction of the longitudinal beam 1. The driving wheel 4 passes The bearing is rotatably connected to the driving block 2, two longitudinal beams 1 are provided, and a plurality of equally spaced cross beams 18 are welded between the two longitudinal beams 1, both ends of the longitudinal beam 1 are fixedly connected with the second hydraulic push rod 8, the bottom of the driving block 2 is fixedly connected with the first hydraulic push rod 6, the top of the pressure block 10 is provided with a groove 11, and the pressure block 10 is made of rubber material, and the telescopic ends of the first hydraulic push rod 6 and the second hydraulic push rod 8 are fixedly connected with a pressure plate 12, so that one group of driving blocks 2 supports and drives the longitudinal beam 1 forward through the first driving motor 3, and the other group of driving blocks 2 moves forward synchronously, and then the two groups of driving blocks 2 exchange working states. In this way, the two groups of driving blocks 2 are alternately moved forward to realize the rapid movement of the trestle, and at the same time, the third hydraulic push rod 9 pushes the pressure block 10 to decelerate, so that the longitudinal beam 1 can be stopped in time and the moving distance error can be reduced.

[0037] Embodiment 2:

[0038] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5, a self-propelled hydraulic inverted arch trestle overall forward movement and positioning mechanism, including a longitudinal beam 1, a trestle channel 15, a cross beam 18 and a controller 19, two groups of drive blocks 2 are provided at the bottom of the longitudinal beam 1, each of the two groups of drive blocks 2 is composed of two drive blocks 2, and a fixed rod 7 is fixedly connected between the two drive blocks 2, and the end surface of the drive block 2 close to the bottom of the longitudinal beam 1 is fixedly connected with a first drive motor 3 and a third hydraulic push rod 9, the output shaft of the first drive motor 3 is connected with a drive wheel 4, a slide groove 5 is provided on the bottom end surface of the longitudinal beam 1, and the drive wheel 4 can roll along the slide groove 5, and the telescopic end of the third hydraulic push rod 9 is fixedly connected with a pressure block 10, the two groups of drive blocks 2 are symmetrically arranged on both sides of the bottom end surface of the longitudinal beam 1, the drive block 2 is slidably connected to the side surface wall of the longitudinal beam 1, and the drive block 2 can move along the axial direction of the longitudinal beam 1, and the drive wheel 4 is rotatably connected with the drive block 2 through a bearing, and the longitudinal beam 1 is provided with two, and the two longitudinal beams A plurality of equally spaced cross beams 18 are welded between the longitudinal beams 1, both ends of the longitudinal beam 1 are fixedly connected with a second hydraulic push rod 8, the bottom of the driving block 2 is fixedly connected with a first hydraulic push rod 6, a groove 11 is provided on the top of the pressure block 10, and the pressure block 10 is made of rubber material, the telescopic ends of the first hydraulic push rod 6 and the second hydraulic push rod 8 are fixedly connected with a pressure plate 12, the same end of the two longitudinal beams 1 is rotatably connected with a foldable support plate 13, and the folding parts of the two support plates 13 are rotatably connected with a support rod 14, the side surface wall of the longitudinal beam 1 is fixedly connected with a second drive motor 17, the output shaft of the second drive motor 17 is transmission-connected with the support plate 13, a connecting rod 16 is fixedly connected between the two support plates 13, the support plate 13 can be driven to rotate by the second drive motor 17, and then the support plate 13 is folded above the trestle channel 15, thereby reducing the volume of the small trestle and facilitating its transportation and movement.

[0039] Working principle: When in use, the electrical equipment on the inverted trestle is supplied with mains electricity. First, when moving the longitudinal beam 1, the controller 19 controls the first hydraulic push rod 6 of a group of driving blocks 2 on the outer side of the bottom of the two longitudinal beams 1 to stretch and prop up the longitudinal beam 1. At the same time, the first driving motor 3 on this group of driving blocks 2 is started, driving the driving wheel 4 to rotate, thereby driving the longitudinal beam 1 to move. At the same time, the first driving motor 3 of another group of driving blocks 2 at the bottom of the longitudinal beam 1 is started, driving the driving block 2 to move in the moving direction of the longitudinal beam 1. When the longitudinal beam 1 moves to the specified position, the third hydraulic push rods of the two groups of driving blocks 2 9 is stretched and the pressing block 10 is pushed to fit the longitudinal beam 1 to stop it, and then the first hydraulic push rod 6 of the driving block 2 on the outer side of the bottom of the longitudinal beam 1 is contracted, and at the same time, the first hydraulic push rod 6 of the driving block 2 on the inner side of the bottom of the longitudinal beam 1 is stretched to play a supporting role, and then the above steps are repeated to make one group of driving blocks 2 support and drive the longitudinal beam 1 forward through the first driving motor 3, and the other group of driving blocks 2 moves forward synchronously. In this way, the two groups of driving blocks 2 are moved forward alternately to realize the rapid movement of the trestle, thereby solving the problems of slow moving speed and lack of positioning mechanism of the existing self-propelled hydraulic inverted arch trestle.

[0040] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A self-propelled hydraulic inverted arch trestle integral forward movement and positioning mechanism, comprising a longitudinal beam, a trestle channel, a cross beam and a controller, characterized in that: Two groups of drive blocks are provided at the bottom of the longitudinal beam, each of the two groups of drive blocks is composed of two drive blocks, and a fixed rod is fixedly connected between the two drive blocks, and the end surface of the drive block close to the bottom of the longitudinal beam is fixedly connected to the first drive motor and the third hydraulic push rod, the output shaft of the first drive motor is drivingly connected to the drive wheel, and a slide groove is provided on the bottom end surface of the longitudinal beam, and the drive wheel can roll along the slide groove, and the telescopic end of the third hydraulic push rod is fixedly connected to the pressure block; Two groups of driving blocks are symmetrically arranged on both sides of the bottom end surface of the longitudinal beam, the driving blocks are slidably connected to the side surface wall of the longitudinal beam, and the driving blocks can move along the axial direction of the longitudinal beam; one group of driving blocks is supported, and the longitudinal beam is driven forward by the first driving motor, and the other group of driving blocks moves forward synchronously, and the two groups of driving blocks exchange working states. In this way, the two groups of driving blocks are alternately moved forward to realize the rapid movement of the trestle, and at the same time, the third hydraulic push rod pushes the pressing block to decelerate, so that the longitudinal beam can be stopped in time; Two longitudinal beams are provided, and a plurality of cross beams arranged at equal intervals are welded between the two longitudinal beams; the support plate can be driven to rotate by the second driving motor, so that the support plate is folded above the trestle channel.

2. The self-propelled hydraulic inverted arch trestle integral forward movement and positioning mechanism according to claim 1 is characterized in that: The driving wheel is rotatably connected to the driving block via a bearing.

3. The self-propelled hydraulic inverted arch trestle integral forward movement and positioning mechanism according to claim 1 is characterized in that: The same end of the two longitudinal beams is rotatably connected to a foldable support plate, and the folding parts of the two support plates are rotatably connected to support rods, the side wall of the longitudinal beam is fixedly connected to a second drive motor, the output shaft of the second drive motor is transmission-connected to the support plate, and a connecting rod is fixedly connected between the two support plates.

4. The self-propelled hydraulic inverted arch trestle integral forward movement and positioning mechanism according to claim 1, characterized in that: Both ends of the longitudinal beam are fixedly connected with the second hydraulic push rod, and the bottom of the driving block is fixedly connected with the first hydraulic push rod.

5. The self-propelled hydraulic inverted arch trestle integral forward movement and positioning mechanism according to claim 1, characterized in that: A groove is arranged on the top of the pressing block, and the pressing block is made of rubber.

6. The self-propelled hydraulic inverted arch trestle integral forward movement and positioning mechanism according to claim 4, characterized in that: The telescopic ends of the first hydraulic push rod and the second hydraulic push rod are both fixedly connected with a pressing plate.

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