Chassis structure of arch bolting and grouting combined operation trolley

Abstract

A chassis structure of an arch bolting and grouting combined operation trolley relates to the technical field of tunnel construction equipment and comprises a trailer body and an operation platform capable of being separated from the trailer body through hydraulic supporting legs, and a stirring and grouting device is connected to the position, corresponding to the position between front and rear wheels of the trailer body, of the bottom of one side of the operation platform in a drawing mode. A supporting frame is connected to the top of a girder of the trailer body in a fastened mode, and a supporting plate used for supporting an operation platform is arranged above the supporting frame. The supporting plate is connected with the supporting frame in a left-right sliding mode through a sliding mechanism, and receding notches are formed in the positions, corresponding to the stirring and grouting device, of the supporting frame and the supporting plate. A guide groove is formed in the top of the supporting plate. A plurality of guide columns capable of being in corresponding sliding fit with the groove wall of the guide groove are arranged at the bottom of the working platform. The working platform is lifted and supported through the four hydraulic supporting legs, so that the working platform is separated from the trailer body; and the trailer body can be converted into a material transfer trolley, so that the trailer has two purposes, and the practicability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of tunnel construction equipment, in particular to a chassis structure of an arch-anchor-grouting combined operation trolley. Background Art

[0002] The arch-anchor trolley used in tunnel construction is a mechanical device designed specifically for tunnel support. It is primarily used for initial support after tunnel excavation, particularly in soft surrounding rock conditions. It can quickly and efficiently complete tasks such as arch installation and anchor bolting. The trolley's design incorporates multiple functions, significantly improving construction efficiency while ensuring worker safety.

[0003] Existing arch anchor trolleys for tunnel construction are mostly dedicated vehicles. In actual use, they often need to remain fixed in the same position for extended periods of time during construction. Furthermore, transporting the necessary materials requires the purchase of specialized material transfer vehicles, which undoubtedly increases project costs. Therefore, those skilled in the art urgently need to develop a trolley with a detachable chassis and work platform, which can be converted into a material transfer vehicle when operating on the work platform, thereby reducing operating costs.

[0004] A Chinese patent (publication number: CN114575898A) discloses an arch-anchor integrated work trolley and a construction method thereof; the patent includes a vehicle body, on which is provided at least one side arm and at least one intermediate arm, the intermediate arm being connected to the vehicle body via a slewing support seat, the free end of the intermediate arm being provided with a first mechanical gripper, and the arm body of the intermediate arm or the side arm being provided with a drill arm capable of moving relative to the arm body; the side arm being connected to the vehicle body via a sliding mechanism, and the free end of the side arm being provided with a second mechanical gripper; the patent solves the problem of the single function of the arch-anchor trolley in the prior art; however, it is also a dedicated vehicle, and the transportation of materials required for construction requires the purchase of a special material transfer vehicle. Utility Model Content

[0005] In order to overcome the deficiencies in the background technology, the utility model discloses a chassis structure of an arch-anchor-grouting combined operation trolley.

[0006] In order to achieve the above-mentioned purpose of the invention, the present invention adopts the following technical solutions:

[0007] A chassis structure of an arch-anchor-grouting combined operation trolley comprises a trailer body and a work platform that can be separated from the trailer body by hydraulic legs; a stirring grouting device is pull-out and connected to the bottom of one side of the work platform at a position corresponding to the position between the front and rear wheels of the trailer body; a support frame is fastened to the top of the beam of the trailer body, and a support plate for supporting the work platform is provided above the support frame; the support plate is slidably connected to the support frame left and right through a sliding mechanism, and the support frame and the support plate are provided with clearance notches at the positions corresponding to the stirring grouting device; a guide groove is provided on the top of the support plate, and a plurality of guide columns that can slide in correspondence with the walls of the guide groove are provided at the bottom of the work platform.

[0008] Preferably, the sliding mechanism includes a support beam arranged at the top of the support frame, with a gap between the top of the support beam and the bottom of the support plate; the support beam body is movably connected with multiple guide rods, and the two ends of the guide rods are respectively fastened to the bottom of the working platform through connecting plates, and the guide rods are provided with springs corresponding to the rod body between the support beam and the connecting plate.

[0009] Preferably, a plurality of support wheels that are in rolling contact with the support frame are spaced apart on both sides of the beam body of the support beam corresponding to the bottom of the support plate.

[0010] Preferably, a telescopic rod is installed between the support beam and the support plate for aligning the support plate with the support frame.

[0011] Preferably, the body of the guide column is rotatably connected to a roller.

[0012] Preferably, the working platform and the support plate are provided with correspondingly overlapping pin holes, and a limit pin is movably inserted into the pin hole.

[0013] Preferably, the support plate is detachably connected with a cover plate corresponding to the notch thereof.

[0014] Preferably, the guide groove has a trumpet-shaped structure at one end corresponding to the rear end of the trailer body.

[0015] Due to the adoption of the above-mentioned technical solution, the utility model has the following beneficial effects:

[0016] The utility model discloses a chassis structure of an arch-anchor-grouting combined operation trolley, which has a simple structure and low production cost. The operation platform can be separated from the trailer body by lifting and supporting the operation platform through four hydraulic legs. The operator can use the trailer body to transport materials required for tunnel construction, and the vehicle can be used for two purposes, thereby improving practicality.

[0017] The utility model further guides the operator to drive the trailer body to the bottom of the working platform through the cooperation of the guide column and the guide groove, thereby reducing the difficulty of operation when the trailer body is combined with the working platform.

[0018] The utility model further enables the support plate to be slidably connected to the support frame left and right through a sliding mechanism, which, on the one hand, avoids applying a large lateral force to the work platform during the process of the trailer body entering the bottom of the work platform, and on the other hand, avoids the operator from having to drive the trailer body out of the work platform and adjust the direction again, effectively reducing the difficulty of operation when the trailer body is combined with the work platform and improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the mixing and grouting device being pulled out from the bottom of the working platform;

[0020] Figure 2 is a top view of the support plate;

[0021] Figure 3 Schematic diagram of the matching state of the guide column and the guide groove;

[0022] Figure 4 This is a bottom view of the support frame.

[0023] In the figure: 1. trailer body; 1-1. support frame; 1-2. support beam; 1-3. support plate; 1-4. guide rod; 1-5. connecting plate; 1-6. spring; 1-7. support wheel; 1-8. telescopic rod; 1-9. guide groove; 1-10. guide column; 1-11. roller; 1-12. limit pin; 1-13. cover plate; 2. working platform; 3. mixing and grouting device. DETAILED DESCRIPTION

[0024] The present invention will be explained in detail through the following embodiments. The purpose of disclosing the present invention is to protect all technical improvements within the scope of the present invention. In the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "front", "back", "left", and "right" indicating directions or positional relationships, they are only corresponding to the drawings of the present application for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific direction.

[0025] Example 1, combined with the attached Figures 1 to 4 The chassis structure of an arch anchor grouting combined operation trolley comprises a trailer body 1 and an operation platform 2 which can be separated from the trailer body 1 by hydraulic legs. A stirring grouting device 3 is connected to the bottom of the operation platform 2 at a position corresponding to the position between the front and rear wheels of the trailer body 1. Figure 1As shown, the four corners of the work platform 2 are equipped with hydraulic outriggers. To separate the work platform 2 from the trailer 1, the mixing and grouting device 3 is first pulled out from the bottom of the work platform 2, clearing the wheels of the trailer 1. The four hydraulic outriggers then lift and support the work platform 2, effectively separating it from the trailer 1. Operators can then use the trailer 1 to transport materials needed for tunnel construction, making it a dual-purpose vehicle and enhancing its practicality.

[0026] A support frame 1-1 is securely connected to the top of the beam of the trailer body 1. A support plate 1-3 for supporting the work platform 2 is located above the support frame 1-1. The support plate 1-3 is slidably connected to the support frame 1-1 via a sliding mechanism. A guide groove 1-9 is located at the top of the support plate 1-3, and a plurality of guide posts 1-10 are located at the bottom of the work platform 2, which are configured to slide in and out of the groove walls of the guide groove 1-9. The cooperation of the guide posts 1-10 and the guide groove 1-9 guides the operator to steer the trailer body 1 under the work platform 2, allowing the support plate 1-3 to overlap with the work platform 2. This facilitates alignment of the central axis of the work platform 2 with the central axis of the trailer body 1, thus preventing the center of gravity of the trailer body 1 from shifting.

[0027] To reduce the operational difficulty of coupling the trailer body 1 with the work platform 2, two guide posts 1-10 are provided at the bottom of the work platform 2, one at each end. To prevent severe friction between the guide posts 1-10 and the walls of the guide groove 1-9 when the trailer body 1 and the work platform 2 are coupled, rollers 1-11 are rotatably connected to the guide posts 1-10. As the trailer body 1 drives the support plate 1-3 into the bottom of the work platform 2, the rollers 1-11 roll along the walls of the guide groove 1-9, effectively reducing friction between the guide posts 1-10 and the walls of the guide groove 1-9.

[0028] When the working platform 2 needs to be transferred through the trailer body 1, the operator can drive the trailer body 1 to the bottom of the working platform 2. Before the trailer body 1 enters the bottom of the working platform 2, the guide groove 1-9 needs to be aligned with the guide post 1-10. The guide groove 1-9 corresponds to the end of the rear of the trailer body 1 and has a trumpet-shaped structure, which facilitates the smooth entry of the guide post 1-10 into the guide groove 1-9. In the process of the trailer body 1 entering the bottom of the working platform 2, if the longitudinal axis of the guide groove 1-9 is not parallel to the longitudinal axis of the working platform 2, the second guide post 1-10 cannot enter the guide groove 1-9. At this time, the operator only needs to adjust the driving direction of the trailer body 1, and the support plate 1-3 can adaptively move left and right under the action of the sliding mechanism, which on the one hand avoids applying a large lateral force to the working platform 2, and on the other hand avoids the operator from having to drive the trailer body 1 out of the working platform 2 and adjust the direction again, effectively reducing the difficulty of operation when the trailer body 1 is combined with the working platform 2 and improving the operating efficiency.

[0029] It should be noted that before the trailer body 1 enters the bottom of the working platform 2, it is necessary to adjust the height of the working platform 2 through the hydraulic legs so that the bottom of the working platform 2 is higher than the top surface of the support plate 1-3, and the bottom end of the guide column 1-10 is located in the guide groove 1-9 to prevent the guide column 1-10 from falling out of the guide groove 1-9 and losing its guiding function.

[0030] Combined with attachment Figure 3 and 4 The sliding mechanism includes a support beam 1-2 provided at the top of the support frame 1-1, and a gap is left between the top of the support beam 1-2 and the bottom of the support plate 1-3. The support beam 1-2 is movably connected with a plurality of guide rods 1-4 running through the beam body. The two ends of the guide rod 1-4 are respectively fastened to the bottom of the working platform 2 through the connecting plate 1-5. The guide rod 1-4 is provided with a spring 1-6 corresponding to the rod body between the support beam 1-2 and the connecting plate 1-5. When the connecting plate 1-5 is not subjected to external force, the connecting plate 1-5 can automatically align with the support frame 1-1 left and right under the action of the spring 1-6. When the guide column 1-10 applies lateral force to the connecting plate 1-5, the connecting plate 1-5 can move left and right along the axis direction of the guide rod 1-4 and the support frame 1-1.

[0031] A plurality of support wheels 1-7 that are in rolling contact with the support frame 1-1 are arranged at intervals on both sides of the beam body of the support beam 1-2 at the bottom of the support plate 1-3. The support plate 1-3 can directly apply its own gravity and bearing capacity to the support frame 1-1 through the support wheels 1-7, thereby preventing the guide rod 1-4 from bending due to a large bending moment.

[0032] A telescopic rod 1-8 is installed between support beam 1-2 and support plate 1-3 to align support plate 1-3 with support frame 1-1. When support plate 1-3 overlaps with work platform 2, there may be a left-right misalignment between support plate 1-3 and support frame 1-1. At this point, the hydraulic outriggers are controlled to shorten, allowing work platform 2 to rest on support plate 1-3. With the hydraulic outriggers fully off the ground, telescopic rod 1-8 drives support plate 1-3 along guide rod 1-4 until support plate 1-3 overlaps support frame 1-1, ensuring that the central axis of work platform 2 is aligned with the central axis of trailer body 1.

[0033] It should be noted that, when the trailer body 1 enters the bottom of the working platform 2, the telescopic rod 1-8 needs to be kept in a freely retractable state to avoid interference with the adaptive movement of the support plate 1-3.

[0034] The positions of the support frame 1-1 and the support plate 1-3 corresponding to the stirring grouting device 3 are both provided with a gap, as shown in the attached Figure 1 and 2When the working platform 2 is transported, the stirring and grouting device 3 can be pushed into the bottom of the working platform 2, and the stirring and grouting device 3 can enter the clearance area, thereby reducing the overall width and making it easier for the operator to drive the trailer body 1 through narrow areas.

[0035] Example 2, combined with the attached Figure 1 A chassis structure for an arch-anchor-injection combined operation trolley differs from Example 1 in that, based on Example 1, the work platform 2 and support plates 1-3 are provided with corresponding and overlapping pin holes, into which limit pins 1-12 are movably inserted. During the transfer of the work platform 2, the limit pins 1-12 can limit the slippage of the work platform 2, preventing misalignment between the work platform 2 and the trailer body 1.

[0036] Example 3, combined with the attached Figure 2 and 4 A chassis structure for an arch-anchor-grouting combined operation trolley, based on Embodiments 1 or 2, features a cover plate 1-13 detachably connected to the support plate 1-3 at its corresponding clearance opening. When the trailer body 1 is used to transport materials for tunnel construction, the clearance opening in the support plate 1-3 can be closed with the cover plate 1-13, effectively increasing the loading area of the support plate 1-3. When the work platform 2 needs to be transferred, the cover plate 1-13 is removed, allowing the mixing and grouting device 3 to be retracted into the bottom of the work platform 2.

[0037] The parts of the present invention that are not described in detail are prior art. It is obvious to those skilled in the art that the present invention is not limited to the details of the above-mentioned exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and it is intended that all changes that fall within the meaning and scope of equivalent elements are included in the present invention.

Claims

1. A chassis structure of an arch anchor grouting combined operation trolley, comprising a trailer body (1) and an operation platform (2) that can be separated from the trailer body (1) by hydraulic legs, wherein a stirring grouting device (3) is retractably connected to the bottom of one side of the operation platform (2) at a position corresponding to the position between the front and rear wheels of the trailer body (1); wherein the structure is characterized by: A support frame (1-1) is fastened to the top of the beam of the trailer body (1), and a support plate (1-3) for supporting the working platform (2) is provided above the support frame (1-1); the support plate (1-3) is slidably connected to the support frame (1-1) left and right via a sliding mechanism, and the support frame (1-1) and the support plate (1-3) are both provided with clearance notches at positions corresponding to the stirring grouting device (3); a guide groove (1-9) is provided at the top of the support plate (1-3), and a plurality of guide columns (1-10) capable of slidingly engaging with the groove walls of the guide groove (1-9) are provided at the bottom of the working platform (2).

2. The chassis structure of the arch-anchor-grouting combined operation trolley according to claim 1 is characterized by: The sliding mechanism comprises a support beam (1-2) arranged at the top of the support frame (1-1), with a gap between the top of the support beam (1-2) and the bottom of the support plate (1-3); a plurality of guide rods (1-4) are movably connected through the beam body of the support beam (1-2), and both ends of the guide rods (1-4) are respectively fastened to the bottom of the working platform (2) through connecting plates (1-5), and a spring (1-6) is provided on the rod body of the guide rod (1-4) corresponding to the support beam (1-2) and the connecting plate (1-5).

3. The chassis structure of the arch-anchor-grouting combined operation trolley according to claim 2 is characterized by: A plurality of support wheels (1-7) that are in rolling contact with the support frame (1-1) are provided at intervals on both sides of the beam body corresponding to the support beam (1-2) at the bottom of the support plate (1-3).

4. The chassis structure of the arch-anchor-grouting combined operation trolley according to claim 2 or 3, characterized in that: A telescopic rod (1-8) for aligning the support plate (1-3) with the support frame (1-1) is installed between the support beam (1-2) and the support plate (1-3).

5. The chassis structure of the arch-anchor-grouting combined operation trolley according to claim 1 is characterized by: The column body of the guide column (1-10) is rotatably connected to a roller (1-11).

6. The chassis structure of the arch-anchor-grouting combined operation trolley according to claim 1 is characterized by: The working platform (2) and the supporting plate (1-3) are provided with correspondingly overlapping pin holes, and a limiting pin (1-12) is movably inserted into the pin hole.

7. The chassis structure of the arch-anchor-grouting combined operation trolley according to claim 1 is characterized by: The support plate (1-3) is detachably connected to a cover plate (1-13) at a position corresponding to the yielding notch thereof.

8. The chassis structure of the arch-anchor-grouting combined operation trolley according to claim 1 is characterized by: One end of the guide groove (1-9) corresponding to the rear of the trailer body (1) is in a trumpet-shaped structure.

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