Pipeline drag chain structure for telescopic boom, telescopic boom and arch frame trolley
By designing a pipeline drag chain structure for telescopic booms, the problem of guide rail spacing caused by the large bending radius of multi-stage telescopic boom pipelines is solved, realizing smooth pipeline movement and aesthetic layout, and is suitable for multi-stage telescopic booms and large-diameter applications.
Patent Information
- Application Number
- CN202422827211.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-20
- Publication Date
- 2025-12-19
- Estimated Expiration
- 2034-11-20
AI Technical Summary
In the existing technology, the multi-stage telescopic boom pipeline layout has problems such as large pipeline bending radius and insufficient spacing between upper and lower drag chain guide rails, which cause the drag chain to extend beyond the boom end or cause interference when it is retracted.
A pipeline drag chain structure is designed, including a first guide rail, a transition component, a first drag chain, an intermediate guide rail, a second drag chain, and a second guide rail. The transition component guides the pipeline bundle into the first guide rail, and the intermediate guide rail reduces the number of guide rail stages. Combined with the idler support and rolling elements, it ensures smooth pipeline movement.
It achieves the required bending radius of the pipeline, reduces the space occupied by the cable chain, improves the service life of the pipeline, and makes the pipeline layout more aesthetically pleasing. It is suitable for multi-stage telescopic booms and large-diameter applications.
Smart Images
Figure CN223688063U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to engineering telescopic arm technical field, especially, relate to a pipe drag chain structure for telescopic jib, telescopic jib and arch frame trolley. BACKGROUND
[0002] The arch frame trolley is also called multifunctional tunnel arch frame installation trolley or tunnel arch frame snatch trolley, and is an engineering machine used for installing steel arch frames and performing other high-altitude operations in tunnel construction. Main components thereof include chassis, front and rear legs, auxiliary frame, sliding platform, mechanical arm, working platform, mechanical hand, auxiliary arm, hydraulic winch and other mechanisms. The arch frame trolley is mainly used for installing steel arch frames in tunnels and assisting in charging, and is an important equipment in tunnel construction. In addition, it can also perform quality detection, air and water pipe installation, defect repair, grouting and other high-altitude operations, and is a new type of multifunctional tunnel high-altitude operation platform integrating multiple high-altitude operation platforms.
[0003] The most widely used multi-stage telescopic arm pipe arrangement form in the prior art is a telescopic rod cooperating with a chain sling, the pipe arrangement is not aesthetically pleasing, the pipes are worn by each other, and the pipes are not protected. Or, a scheme of built-in pipe in the drag chain is adopted, but the number of pipes and the minimum bending radius of the pipes are extremely high, and the scheme is not suitable for occasions where the platform pipe demand is large and the pipe diameter is large. The external pipe drag chain scheme in the prior art also has technical barriers for occasions where the basic arm is short and the telescopic stages are many. First, when the pipe diameter is large, the pipe bending radius is large, and the distance between the upper and lower drag chain guide rails cannot meet the demand, and increasing the distance between the guide rails easily causes the drag chain to exceed the highest point or the lowest point of the jib. When the telescopic stages are many, simply lengthening the guide rail length easily causes the drag chain to exceed the end of the jib when it is retracted, and other interference problems occur. UTILITY MODEL CONTENTS
[0004] The utility model provides a pipe drag chain structure for telescopic jib, telescopic jib and arch frame trolley to solve the technical problem that the pipe bending radius is large when the number of telescopic stages of the pipe drag chain in the prior art is large and the pipe diameter is large, the distance between the upper and lower drag chain guide rails cannot meet the demand, and lengthening the guide rail length easily causes the drag chain to exceed the end of the jib when it is retracted.
[0005] According to one aspect of the utility model, a pipe drag chain structure for telescopic jib is provided, the telescopic jib includes a first-stage arm, a second-stage arm, a third-stage arm, a fourth-stage arm and a final-stage arm, and the pipe drag chain structure includes:
[0006] A first guide rail is connected to one side of the first-stage arm along the length direction of the telescopic jib;
[0007] A transition assembly is arranged on the lower surface of the first guide rail and used for transitionally connecting the pipe bundle of the chassis on which the telescopic jib is located to the first end of the first guide rail;
[0008] a first drag chain, a fixed end of the first drag chain is fixedly connected to a first end of the first guide rail, and is used for transitionally connecting the pipeline bundle to a moving end of the first drag chain;
[0009] a middle guide rail, which is connected to the tertiary arm along a length direction of the telescopic arm support and is located above the first guide rail, comprises a middle layer, the moving end of the first drag chain is connected to a lower part of the middle layer, and the middle guide rail is used for guiding the pipeline bundle to wind around to an upper part of the middle layer through a first end of the middle layer;
[0010] a second drag chain, a fixed end of the second drag chain is connected to a first end of the upper part of the middle layer of the middle guide rail, and is used for guiding the pipeline bundle to a moving end of the second drag chain;
[0011] a second guide rail, which is connected to the quaternary arm along the length direction of the telescopic arm support and is located above the middle guide rail, and the moving end of the second drag chain is connected to the quaternary arm, so as to guide the pipeline bundle to a working platform at a terminal end of the quaternary arm.
[0012] As a further improvement of the above technical solution, a pipe passing hole is arranged at the first end of the middle guide rail, and is used for passing the pipeline bundle to the fixed end of the second drag chain.
[0013] As a further improvement of the above technical solution, the pipe passing hole is provided with a circular arc edge for protecting the pipeline bundle.
[0014] As a further improvement of the above technical solution, the pipeline drag chain structure further comprises a first roller bracket mounted on the secondary arm and a second roller bracket mounted on the quaternary arm, the first roller bracket is provided with a first rolling part for cooperating with a bottom of the middle guide rail, and the second roller bracket is provided with a second rolling part for cooperating with a bottom of the second guide rail.
[0015] As a further improvement of the above technical solution, a rotary reset structure is arranged in each of the first rolling part and the second rolling part.
[0016] As a further improvement of the above technical solution, the transition assembly comprises a steel pipe assembly and a pipe clamp assembly.
[0017] As a further improvement of the above technical solution, the pipeline drag chain structure further comprises a plurality of mounting seats which are connected to the telescopic arm support in a radial direction of the telescopic arm support and are parallel to the telescopic arm support, and the first guide rail, the second guide rail and the assembly guide rail are arranged in the mounting seats.
[0018] As a further improvement of the above technical solution, a first link of the moving end of the first drag chain is connected to the middle guide rail at a preset angle, and a first link of the moving end of the second drag chain is connected to the second guide rail at a preset angle.
[0019] According to another aspect of the utility model, still provide a telescopic jib, it includes above pipeline tow chain structure.
[0020] According to another aspect of the utility model, still provide an arch jib trolley, it includes above telescopic jib.
[0021] The utility model has the following beneficial effects:
[0022] The pipeline tow chain structure can be applied to five-stage and above telescopic arms, the pipeline tow chain structure is in external installation form, the pipeline bundle of the chassis is introduced into the first tow chain installed on the first guide rail through the transition assembly, the first tow chain is connected to the lower part of the middle layer of the intermediate guide rail, the pipeline bundle is introduced to the second guide rail and then to the working platform connected to the terminal end of the last-stage arm after being wound to the upper part of the first end of the middle layer of the intermediate guide rail, the number of guide rail stages and tow chains is reduced through the intermediate guide rail, the overall volume is reduced, the space occupation of the tow chain is reduced, the travel of the tow chain is shorter, the pipeline is smooth, the minimum bending radius requirement of the pipeline is met, the service life of the pipeline is increased, the arm jib pipe arrangement is more beautiful, and the use condition of large demand of the basket platform pipeline or electrical circuit and large bending radius of the pipeline or electrical circuit is met.
[0023] In addition to the purposes, features and advantages described above, the utility model has other purposes, features and advantages. The utility model will be further described below with reference to the drawings. BRIEF DESCRIPTION OF DRAWINGS
[0024] The drawings that form part of the present application are used to provide further understanding of the utility model, and the illustrative embodiments of the utility model and the description thereof are used to explain the utility model and do not constitute improper limitation on the utility model. In the drawings:
[0025] Figure 1 It is the structure schematic drawing of preferred embodiment of the utility model;
[0026] Figure 2 It is the structure schematic drawing of intermediate guide rail of preferred embodiment of the utility model;
[0027] Figure 3 It is the structure schematic drawing of first roller support of preferred embodiment of the utility model;
[0028] Figure 4 It is the structure schematic drawing of second roller support of preferred embodiment of the utility model;
[0029] Figure 5 It is the structure schematic drawing of first roller support of preferred embodiment of the utility model;
[0030] Figure 6It is the structural schematic diagram of the fourth mounting frame of the preferred embodiment of the utility model.
[0031] Legend:
[0032] 1, first mounting frame; 2, second roller support; 3, second rolling member; 4, first roller support; 5, second guide rail; 6, intermediate guide rail; 7, second drag chain; 8, first guide rail; 9, first drag chain; 10, first mounting frame; 11, steel pipe assembly; 12, pipe clamp assembly; 13, second mounting frame; 14, primary arm; 15, secondary arm; 16, third mounting frame; 17, tertiary arm; 18, quaternary arm; 19, final arm. DETAILED DESCRIPTION
[0033] The preferred embodiment of the utility model is described in detail below in combination with the drawings, but the utility model can be implemented in multiple different ways limited and covered by the following.
[0034] Figure 1 It is the structural schematic diagram of the preferred embodiment of the utility model; Figure 2 It is the structural schematic diagram of the intermediate guide rail of the preferred embodiment of the utility model; Figure 3 It is the structural schematic diagram of the first roller support of the preferred embodiment of the utility model; Figure 4 It is the structural schematic diagram of the second roller support of the preferred embodiment of the utility model; Figure 5 It is the structural schematic diagram of the first rolling member or second rolling member of the preferred embodiment of the utility model; Figure 6 It is the structural schematic diagram of the fourth mounting frame of the preferred embodiment of the utility model.
[0035] As Figures 1 to 6 shown, the pipe drag chain structure for telescopic arm support of the embodiment includes primary arm 14, secondary arm 15, tertiary arm 17, quaternary arm 18 and final arm 19, and the pipe drag chain structure includes:
[0036] First guide rail 8 is connected to one side of primary arm 14 along the length direction of telescopic arm support;
[0037] Transition assembly is arranged on the lower surface of first guide rail 8 and is used for transitionally connecting the pipe bundle of the bottom plate where telescopic arm support is located to the first end of first guide rail 8;
[0038] First drag chain 9 is fixedly connected to the first end of first guide rail 8, and is used for transitionally connecting the pipe bundle to the moving end of first drag chain 9;
[0039] Intermediate guide rail 6 is connected to tertiary arm 17 along the length direction of telescopic arm support and is located above first guide rail 8, includes intermediate layer, the moving end of first drag chain 9 is connected to the lower part of intermediate layer, and intermediate guide rail 6 is used for guiding the pipe bundle to be wound to the upper part of intermediate layer through the first end of intermediate layer.
[0040] The second drag chain 7 has a fixed end connected to the first end of the upper part of the middle layer of the intermediate guide rail 6, and is used to guide the pipe bundle to the moving end of the second drag chain 7.
[0041] The second guide rail 5 is connected to the final stage arm 19 in the length direction of the telescopic arm and is located above the intermediate guide rail 6. The moving end of the second drag chain 7 is connected to the final stage arm 19 to guide the pipe bundle to the working platform at the end of the final stage arm 19.
[0042] It can be understood that the pipe drag chain structure can be applied to a five-stage or more telescopic arm. The pipe drag chain structure is in an external installation form. The pipe bundle of the bottom plate is guided to the first drag chain 9 installed on the first guide rail 8 through a transition assembly. The first drag chain 9 is connected to the lower part of the middle layer of the intermediate guide rail 6. The pipe bundle is guided to the working platform at the end of the final stage arm 19 through the second drag chain 7 after being wound to the upper part of the first end of the middle layer of the intermediate guide rail 6. The number of guide rails and the number of drag chains are reduced through the intermediate guide rail 6. The overall volume is reduced. The space occupied by the drag chain is reduced. The drag chain has a shorter stroke. The pipe is smooth. The minimum bending radius requirement of the pipe is met. The service life of the pipe is increased. The arm support pipe is more beautiful. The demand for the pipe or electrical line of the basket platform is met. The bending radius of the pipe or electrical line is large.
[0043] In the embodiment, the first end of the intermediate guide rail 6 is provided with a pipe passing hole for the pipe bundle to pass to the fixed end of the second drag chain 7, so that the pipe bundle meets the minimum bending radius requirement to enter the fixed end of the second drag chain 7.
[0044] Further, the pipe passing hole is provided with an arc edge for protecting the pipe bundle to avoid damage caused by pipe friction and improve the service life.
[0045] In the embodiment, the pipe drag chain structure further includes a first roller bracket 4 installed on the second stage arm 15 and a second roller bracket 2 installed on the fourth stage arm 18. The first roller bracket 4 is provided with a first rolling part for cooperating with the bottom of the intermediate guide rail 6. The second roller bracket 2 is provided with a second rolling part 3 for cooperating with the bottom of the second guide rail 5. The third stage arm 17 drives the intermediate guide rail 6 to move relative to the first roller bracket 4 during the telescopic process of the second stage arm 15. The first rolling part cooperates with the intermediate guide rail 6 to support the movement, so that the movement is more stable and smooth. Similarly, the fifth stage arm drives the second guide rail 5 to move relative to the second roller bracket 2 during the telescopic process of the fourth stage arm 18. The second rolling part 3 cooperates with the lower surface of the second guide rail 5 to have a supporting effect, so that the operation is more stable.
[0046] Further, the first rolling part and the second rolling part 3 are respectively provided with a rotary reset structure. The rotary reset structure can be a reset spring.
[0047] In the embodiment, the transition assembly includes a steel pipe assembly 11 and a pipe clamp assembly 12, and a plurality of steel pipes are evenly arranged under the lower surface of the first guide rail 8 through the pipe clamp assembly 12, and the pipelines can be respectively arranged in each steel pipe to lead to the first drag chain 9 of the first guide rail 8, so as to facilitate maintenance and distinguish the pipelines in the front end lead.
[0048] In the embodiment, the pipeline drag chain structure further includes a plurality of mounting seats connected to the telescopic arm frame in the radial direction and parallel to the telescopic arm frame, and the first guide rail 8 and the second guide rail 5 are arranged in the mounting seats, respectively. The mounting seat includes a first mounting frame 101 connected to the telescopic arm frame for mounting the first guide rail 8, a second mounting frame 13, a third mounting frame 16 connected to the telescopic arm frame for mounting the intermediate guide rail 6, and a fourth mounting frame connected to the telescopic arm frame for mounting the second guide rail 5. After each mounting frame is connected to the telescopic arm frame, the corresponding guide rail is mounted, so that each guide rail is arranged at intervals and is stable and supported. The part of each mounting frame for connecting to the telescopic arm frame is matched with the outer contour shape of the telescopic arm frame. The connection position of each roller support is the same.
[0049] In the embodiment, the first link of the moving end of the first drag chain 9 is connected to the intermediate guide rail 6 at a preset angle, and the first link of the moving end of the second drag chain 7 is connected to the second guide rail 5 at a preset angle. In the case of reducing the distance between the moving end and the fixed end, the pipeline bending radius meets the demand, and the distance between the upper and lower drag chain guide rails is reduced, so that the guide rail occupies less space and has a wider application range.
[0050] On the other hand, the embodiment also provides a telescopic arm frame including the above-mentioned pipeline drag chain structure.
[0051] On the other hand, the embodiment also provides an arch frame trolley including the above-mentioned telescopic arm frame.
[0052] The above only describes preferred embodiments of the present application and is not intended to limit the present application. For those skilled in the art, the present application can be variously changed and modified. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims
1. A pipe drag chain structure for a telescopic boom, characterized by, The telescopic boom includes a first-stage arm (14), a second-stage arm (15), a third-stage arm (17), a fourth-stage arm (18), and a final-stage arm (19), and the pipeline drag chain structure includes: a first guide rail (8) connected to one side of the first-stage arm (14) along the length direction of the telescopic boom; a transition assembly arranged on the lower surface of the first guide rail (8) and used for transitionally connecting a pipeline bundle of a chassis on which the telescopic boom is arranged to the first end of the first guide rail (8); a first drag chain (9) with a fixed end fixedly connected to the first end of the first guide rail (8) and used for transitionally connecting the pipeline bundle to the moving end of the first drag chain (9); an intermediate guide rail (6) connected to the third-stage arm (17) along the length direction of the telescopic boom and located above the first guide rail (8), including an intermediate layer, the moving end of the first drag chain (9) being connected to the lower part of the intermediate layer, the intermediate guide rail (6) being used for guiding the pipeline bundle to the upper part of the intermediate layer through the first end of the intermediate layer; a second drag chain (7) with a fixed end connected to the first end of the upper part of the intermediate layer of the intermediate guide rail (6) and used for guiding the pipeline bundle to the moving end of the second drag chain (7); a second guide rail (5) connected to the final-stage arm (19) along the length direction of the telescopic boom and located above the intermediate guide rail (6), the moving end of the second drag chain (7) being connected to the final-stage arm (19) to guide the pipeline bundle to the working platform at the end of the final-stage arm (19).
2. A pipe drag chain structure for a telescopic boom as claimed in claim 1, characterized in that, The first end of the intermediate guide rail (6) is provided with a pipe passing hole for the pipeline bundle to pass to the fixed end of the second drag chain (7).
3. A pipe drag chain structure for a telescopic boom as claimed in claim 2, characterized in that, The pipe passing hole is provided with a circular arc edge for protecting the pipeline bundle.
4. The pipe drag chain structure for a telescopic boom as claimed in claim 1, characterized by, The pipeline drag chain structure further includes a first roller bracket (4) mounted on the second-stage arm (15) and a second roller bracket (2) mounted on the fourth-stage arm (18), the first roller bracket (4) is provided with a first rolling member for cooperating with the bottom of the intermediate guide rail (6), and the second roller bracket (2) is provided with a second rolling member (3) for cooperating with the bottom of the second guide rail (5).
5. A pipe drag chain structure for a telescopic boom as claimed in claim 4, characterized in that, The first rolling member and the second rolling member (3) are respectively provided with a rotary reset structure.
6. The pipe drag chain structure for a telescopic boom as claimed in claim 1, characterized by, The transition assembly includes a steel pipe assembly (11) and a pipe clamp assembly (12).
7. The pipe drag chain structure for a telescopic boom as claimed in claim 1, characterized by, The pipeline drag chain structure further includes a plurality of mounting seats connected to the telescopic boom in the radial direction of the telescopic boom, and the first guide rail (8), the second guide rail (5), and the assembly guide rail are respectively arranged on the mounting seats.
8. The pipe drag chain structure for a telescoping boom as set forth in claim 1, wherein, The first link of the moving end of the first drag chain (9) is connected to the intermediate guide rail (6) at a preset angle, and the first link of the moving end of the second drag chain (7) is connected to the second guide rail (5) at a preset angle.
9. A telescopic boom characterized in that The pipeline drag chain structure for the telescopic boom is applied.
10. A centering trolley, characterized in that The telescopic boom is applied.