Straddle carrier for pipeline construction

Abstract

The straddle carrier for pipeline construction comprises a frame, two arc-shaped clamping jaws are arranged at the bottom of the frame, moving mechanisms are arranged on the side faces of the two clamping jaws, each moving mechanism comprises a wheel assembly and a suspension assembly, and a hoisting mechanism is arranged between the outer side of each clamping jaw and the frame. The hoisting mechanism comprises a vertically arranged hoisting assembly and a horizontally arranged clamping assembly, the wheel assembly comprises a plurality of crawler wheels, chain type crawlers are arranged on the outer sides of the crawler wheels, the chain type crawlers are in transmission connection with the crawler wheels, connecting arms are arranged on the inner sides of the crawler wheels, and the crawler wheels are connected with the connecting arms through rotating shafts; the utility model has the advantages that the structure is simple, the stability is better, the stability of advancing on complex terrains is stronger, the pipeline is better protected, and the like.

Description

Technical Field

[0001] The utility model belongs to the technical field of straddle carriers, in particular to a straddle carrier for pipeline construction. Background Art

[0002] At present, the road surface at the construction site of large pipelines is rugged, and the foundations are mostly muddy. There is a lack of foundation for installing large cranes, and straddle carriers are often needed to transport large pipelines.

[0003] Traditional pipeline transportation equipment has certain deficiencies in terms of stability and protection of pipelines on complex terrain. For example, traditional straddle carriers often use fixed or simple mobile mechanisms, which lack the flexibility to adapt to complex terrain, resulting in vibration and damage to pipelines due to terrain fluctuations during driving. In addition, the clamping mechanism of traditional straddle carriers generally scratches the surface of pipelines when clamping pipelines of different diameters, affecting the service life of the pipelines. Utility Model Content

[0004] The utility model aims to provide a straddle carrier for pipeline construction in order to solve the problems of the common pipeline transportation equipment in terms of stability when traveling on complex terrain and the insufficiency of protection for pipelines.

[0005] The utility model achieves the above-mentioned purpose through the following technical scheme: it includes a frame, two arc-shaped clamping claws are arranged at the bottom of the frame, and the sides of the two clamping claws are provided with a moving mechanism, and the moving mechanism includes a wheel assembly and a suspension assembly. A lifting mechanism is arranged between the outer side of the clamping claw and the frame, and the lifting mechanism includes a vertically arranged lifting assembly and a horizontally arranged clamping assembly.

[0006] Furthermore, the wheel assembly includes a plurality of track wheels, a chain track is provided on the outer side of the track wheel, the chain track is transmission-connected to the track wheel, a connecting arm is provided on the inner side of the track wheel, and the track wheel is connected to the connecting arm via a rotating shaft.

[0007] Furthermore, the suspension assembly includes a hydraulic rod, both ends of which are respectively connected to the frame and the connecting arm by screws, a spring is provided on the outside of the hydraulic rod, and both ends of the spring are respectively clamped by the middle of the hydraulic rod and the connecting arm.

[0008] Furthermore, the lifting assembly includes a plurality of screw motors, which are connected to the top of the frame by screws. A screw is provided on the inner side of the screw motor, and the screw passes through the frame. A limit plate is fixed on the top of the screw.

[0009] Furthermore, the clamping assembly includes a mounting block, the top of the mounting block is connected to the bottom of the screw rod by a rotating shaft, the inner side of the mounting block is an arc surface, the outer side of the mounting block is provided with an electric telescopic rod, the electric telescopic rod is connected to the mounting block by screws, and the output end of the electric telescopic rod passes through the mounting block and is connected to the clamp by screws.

[0010] Furthermore, a plurality of arc-shaped teeth are provided at the bottom of the clamping jaw.

[0011] Beneficial effects: The utility model has reasonable design and has the following beneficial effects:

[0012] 1. In the solution of the utility model, by replacing the wheels with chain tracks, the stability and off-road capability of the vehicle are greatly improved. On the complex terrain during the pipeline construction process, the chain tracks can increase the contact area with the ground, so that the straddle carrier can travel smoothly, effectively overcoming the problem of insufficient driving stability of vehicles on complex terrain in the prior art. The design of the suspension assembly enables the straddle carrier to adaptively adjust the height and suspension strength of the wheels according to the changes in the terrain, further improving the stability of the vehicle, reducing the vibration of the pipeline during transportation, and helping to protect the integrity of the pipeline and improve transportation safety;

[0013] 2. In the solution of the utility model, the combined design of the lifting assembly and the clamping assembly provides precise vertical lifting control and horizontal clamping and fixing, ensuring the stability and accuracy of the pipeline during lifting and placement, and has obvious advantages in improving lifting efficiency and reducing manual labor intensity;

[0014] 3. In the present invention, the arc-shaped teeth at the bottom of the clamp can fit closely to pipes of different diameters, reduce scratches on the pipe surface, and effectively protect the outer material of the pipe. At the same time, the arc-shaped teeth help to grasp and fix the pipe, prevent the pipe from slipping during transportation, and greatly improve the safety of the transportation process. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the mobile mechanism of the utility model;

[0017] Figure 3 It is a schematic diagram of the structure of the mobile mechanism of the utility model.

[0018] In the figure: 1-frame, 2-gripper, 3-moving mechanism, 4-lifting mechanism;

[0019] 21-arc teeth, 31-wheel assembly, 32-suspension assembly, 41-lifting assembly, 42-clamping assembly;

[0020] 311-track wheel, 312-chain track, 313-connecting arm, 321-hydraulic rod, 322-spring, 411-screw motor, 412-screw, 413-limiting plate, 421-mounting block, 422-electric telescopic rod. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0022] Combination Figures 1 to 3 A straddle carrier for pipeline construction is shown, comprising a frame 1, two arc-shaped clamping jaws 2 are provided at the bottom of the frame 1, and moving mechanisms 3 are provided on the sides of the two clamping jaws 2. The moving mechanism 3 includes a wheel assembly 31 and a suspension assembly 32. A lifting mechanism 4 is provided between the outer side of the clamping jaws 2 and the frame 1, and the lifting mechanism 4 includes a vertically arranged lifting assembly 41 and a horizontally arranged clamping assembly 42.

[0023] The wheel assembly 31 includes a plurality of track wheels 311, a chain track 312 is provided on the outer side of the track wheel 311, the chain track 312 is connected to the track wheel 311 by transmission, a connecting arm 313 is provided on the inner side of the track wheel 311, the track wheel 311 and the connecting arm 313 are connected by a rotating shaft, and the track wheel 311 is connected to the output end of an external motor or gasoline engine by transmission. The chain track 312 design increases the contact area with the ground, improves the stability and off-road capability of the straddle carrier, and enables it to travel smoothly on complex terrain.

[0024] The suspension assembly 32 includes a hydraulic rod 321, both ends of which are connected to the frame 1 and the connecting arm 313 by screws, a spring 322 is arranged on the outside of the hydraulic rod 321, and both ends of the spring 322 are clamped by the middle of the hydraulic rod 321 and the connecting arm 313, respectively. The combined design of the hydraulic rod 321 and the spring 322 allows the straddle carrier to adaptively adjust the height and suspension strength of the wheels according to changes in the terrain, thereby improving stability and reducing vibration of the pipeline during transportation.

[0025] The lifting assembly 41 includes a plurality of screw motors 411, which are connected to the top of the frame 1 by screws. A screw 412 is provided on the inner side of the screw motor 411, and the screw 412 passes through the frame 1. A limit plate 413 is fixed on the top of the screw 412. The combination of the screw motor 411 and the screw 412 provides precise vertical lifting control to ensure the stability and accuracy of the pipeline during the lifting and placement process.

[0026] The clamping assembly 42 includes a mounting block 421, the top of the mounting block 421 is connected to the bottom of the screw rod 412 via a rotating shaft, the inner side of the mounting block 421 is an arc surface, and an electric telescopic rod 422 is provided on the outer side of the mounting block 421, the electric telescopic rod 422 is connected to the mounting block 421 via screws, and the output end of the electric telescopic rod 422 passes through the mounting block 421 and is connected to the clamping claw 2 via screws. The design of the mounting block 421 and the electric telescopic rod 422 allows the straddle carrier to clamp and fix the pipeline in the horizontal direction, thereby increasing the stability of the pipeline during transportation and preventing the pipeline from shaking or deflecting during driving.

[0027] A plurality of arc-shaped teeth 21 are provided at the bottom of the clamp 2. The arc-shaped clamp 2 can fit closely to pipes of different diameters, while reducing the direct pressure points between the clamp 2 and the pipe, avoiding scratches on the pipe surface, and helping to protect the outer material of the pipe. The arc-shaped teeth 21 at the bottom not only facilitate grasping of the pipe, but also prevent the pipe from slipping during transportation.

[0028] Working principle: When the utility model is in use, the screw motor 411 starts to lower the screw rod 412 and the mounting block 421. When the two clamping jaws 2 reach the outside of the pipeline, the electric telescopic rod 422 starts to drive the clamping jaws 2 and the arc-shaped teeth 21 to clamp the pipeline from both sides. After clamping the pipeline, the screw motor 411 raises the screw rod 412 and the clamping jaws 2, and drives the track wheels 311 and the chain track 312 through an external motor or gasoline engine to drive the straddle carrier to move forward. When encountering a rugged road surface, the combined design of the hydraulic rod 321 and the spring 322 allows the straddle carrier to adaptively adjust the height and suspension strength of the wheels according to changes in the terrain, so that the straddle carrier can move smoothly.

[0029] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0030] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A straddle carrier for pipeline construction, comprising a frame (1), characterized in that: Two arc-shaped clamping jaws (2) are provided at the bottom of the frame (1), and moving mechanisms (3) are provided on the sides of the two clamping jaws (2). The moving mechanisms (3) include a wheel assembly (31) and a suspension assembly (32). A lifting mechanism (4) is provided between the outer side of the clamping jaws (2) and the frame (1), and the lifting mechanism (4) includes a vertically arranged lifting assembly (41) and a horizontally arranged clamping assembly (42).

2. A straddle carrier for pipeline construction according to claim 1, characterized in that: The wheel assembly (31) comprises a plurality of track wheels (311), a chain track (312) is provided on the outer side of the track wheel (311), the chain track (312) is transmission-connected to the track wheel (311), a connecting arm (313) is provided on the inner side of the track wheel (311), and the track wheel (311) and the connecting arm (313) are connected via a rotating shaft.

3. A straddle carrier for pipeline construction according to claim 2, characterized in that: The suspension assembly (32) comprises a hydraulic rod (321), the two ends of the hydraulic rod (321) are respectively connected to the vehicle frame (1) and the connecting arm (313) by screws, a spring (322) is provided on the outside of the hydraulic rod (321), and the two ends of the spring (322) are respectively clamped by the middle of the hydraulic rod (321) and the connecting arm (313).

4. A straddle carrier for pipeline construction according to claim 3, characterized in that: The lifting assembly (41) comprises a plurality of screw motors (411), wherein the screw motors (411) are connected to the top of the frame (1) via screws, a screw rod (412) is provided inside the screw motor (411), the screw rod (412) passes through the frame (1), and a limiting plate (413) is fixedly provided on the top of the screw rod (412).

5. A straddle carrier for pipeline construction according to claim 4, characterized in that: The clamping assembly (42) comprises a mounting block (421), the top of the mounting block (421) is connected to the bottom of the screw rod (412) via a rotating shaft, the inner side of the mounting block (421) is an arc surface, the outer side of the mounting block (421) is provided with an electric telescopic rod (422), the electric telescopic rod (422) is connected to the mounting block (421) via screws, and the output end of the electric telescopic rod (422) passes through the mounting block (421) and is connected to the clamping claw (2) via screws.

6. A straddle carrier for pipeline construction according to claim 5, characterized in that: A plurality of arc-shaped teeth (21) are provided at the bottom of the clamping jaw (2).

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