Trolley counter-pull adjusting mechanism

Abstract

The utility model relates to a trolley counter-pull adjusting mechanism which is used for a trolley device to construct at a bypass channel of a main tunnel, the trolley device comprises a trolley main body and an adjusting frame assembly installed on the trolley main body, the adjusting frame assembly is used for bearing a carrying object, and the carrying object comprises a tunneling main body and / or a sleeve. The trolley counter-pull adjusting mechanism comprises adjusting wheel assemblies which are installed on the trolley body at intervals. The at least two pull rod assemblies are distributed on the two sides of the carrying object, and each pull rod assembly is connected with the trolley body and a tunnel segment; the at least two pull rod assemblies pull the carrying object to move towards a to-be-tunneled area of the tunnel segment. The pull rod assembly is connected with the trolley body and the tunnel segment, the position and angle in the front-back direction are adjusted through stretching and retracting of the pull rod assembly, the trolley body is pulled to move to adjust the angle, and therefore the tunneling body and the to-be-tunneled area can be conveniently aligned, the alignment efficiency is high, and the cost is low.

Description

Technical Field

[0001] This utility model relates to the field of tunnel construction technology, and in particular to a trolley anti-pull adjustment mechanism. Background Technology

[0002] During the construction of bypass tunnels in highway tunnels and other trackless tunnels, the tunneling equipment is moved to the tunneling position using specialized transport equipment. This specialized transport equipment includes liftable flatbed trailers equipped with lifting mechanisms. For example, publication number CN111502714A provides a tunnel boring machine and its tunnel excavation material transport system.

[0003] However, when the tunnel is small, it is difficult to find space within the tunnel to directly install a crane; even if a crane can be installed within the tunnel, the cost of crane installation and commissioning is high, and the installation efficiency is low. Using vehicles for adjustment is problematic due to the difficulty in starting and stopping the vehicles, making it difficult to precisely adjust the position of the load. In particular, there are technical problems with the alignment between the tunneling equipment and the corresponding tunneling position, resulting in high difficulty and low alignment efficiency, thus requiring improvement. Utility Model Content

[0004] To overcome the problems existing in related technologies, this utility model provides a trolley reverse adjustment mechanism to solve the technical problems of high debugging costs and difficulty in aligning the tunneling position.

[0005] According to a first aspect of the present invention, a trolley counter-pull adjustment mechanism is provided for trolley equipment to operate in a side passage of a main tunnel. The trolley equipment includes a trolley body and an adjustment frame assembly mounted on the trolley body. The adjustment frame assembly is used to carry a load, the load including a tunneling body and / or a sleeve. The trolley counter-pull adjustment mechanism includes:

[0006] Adjustable wheel assemblies are installed at intervals on the main body of the trolley, and the direction of movement of the adjustable wheel assemblies intersects the centerline of the load.

[0007] At least two tie rod assemblies are distributed on both sides of the carrier, and each tie rod assembly is connected to the trolley body and the tunnel segment respectively;

[0008] At least two of the tie rod assemblies pull the mount toward the area to be excavated of the tunnel segment.

[0009] In one embodiment, the pull rod assembly includes a pull rod frame and an adjustable connector mounted on the pull rod frame, the adjustable connector driving the pull rod frame to extend or retract.

[0010] In one embodiment, the tie rod assembly is symmetrically connected to the trolley body, and the adjustable connector is configured as a hydraulic device sleeved and installed on the tie rod frame.

[0011] In one embodiment, the trolley anti-pull adjustment mechanism includes a connecting seat fixed to the tunnel segment, and the tie rod frame is detachably connected to the connecting seat.

[0012] In one embodiment, the connecting seat is pre-embedded in the tunnel segment; or,

[0013] The connecting seat is cast and connected to the tunnel segment.

[0014] In one embodiment, the trolley anti-pull adjustment mechanism further includes a support assembly and a support leg assembly. The trolley body is mounted on two sets of the support assemblies spaced apart. The support leg assembly is connected to both ends of the support assemblies respectively. The support leg assembly is used to adjust the lifting height of the trolley body.

[0015] In one embodiment, the leg assembly is detachably mounted to the support assembly; or,

[0016] The support leg assembly is fixedly installed on the support assembly and moves up and down relative to the support assembly.

[0017] In one embodiment, the trolley counter-pull adjustment mechanism further includes a drive component installed on the support assembly, the drive component extending and retracting to push against the trolley body.

[0018] In one embodiment, the adjusting wheel assembly includes at least one set of drive wheels.

[0019] In one embodiment, the trolley body includes a lifting assembly, which drives the trolley device to move up and down as a whole, and the adjustment frame assembly drives the loaded object to swing horizontally.

[0020] The technical solution provided by the embodiments of this utility model can include the following beneficial effects: The adjusting wheel assembly is located at both ends of the trolley body, which can guide the trolley device to move along the center direction of the main tunnel, reducing the structural complexity of the trolley device's movement adjustment. The tie rod assembly connects the trolley body and the tunnel segments. By extending and retracting the tie rod assembly, the position and angle in the forward and backward directions can be adjusted to move and adjust the angle of the trolley body, thereby achieving convenient alignment of the loaded object and the area to be excavated, with high alignment efficiency and low cost. Attached Figure Description

[0021] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with the present invention and, together with the description, serve to explain the principles of the present invention.

[0022] Figure 1This is a schematic diagram showing the connection between the trolley counter-pull adjustment mechanism and the trolley device according to one embodiment.

[0023] Figure 2 This is a side view of the trolley reverse adjustment mechanism driving trolley device according to an embodiment.

[0024] Figure 3 This is a top view schematic diagram of a trolley reverse adjustment mechanism driving trolley device according to an embodiment.

[0025] In the figure, the main body of the trolley is 10; the adjustment frame assembly is 20; the adjustment wheel assembly is 30; the tie rod assembly is 40; the tie rod frame is 41; the adjustable connector is 42; the connecting seat is 43; the support assembly is 50; the support leg assembly is 60; the sleeve assembly is 70; the load is 80; the tunnel segment is 90; and the area to be excavated is 91. Detailed Implementation

[0026] In the accompanying drawings of this utility model, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," "right," "inner," and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this utility model. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0027] like Figures 1 to 3 As shown, this utility model provides a trolley reverse pull adjustment mechanism for trolley devices operating in multiple side passages of the main tunnel. The trolley reverse pull adjustment mechanism adjusts the construction angle and position of the trolley device corresponding to the side passage. A side passage is defined as another tunnel excavated beside the main tunnel, and the excavation direction can be horizontal, vertical, or other angular relative to the horizontal plane. For example, side passages include connecting passages, ventilation shafts, escape passages, etc. The forward direction is defined as the direction of movement of the loaded object 80 towards the area to be excavated 91; the left-right direction is defined as the direction of the centerline of the main tunnel; and the up-down direction is defined as the direction of gravity.

[0028] The trolley device includes a trolley body 10 and an adjustment frame assembly 20 mounted on the trolley body 10. The adjustment frame assembly 20 is used to carry the load 80. Optionally, the load 80 includes a sleeve assembly 70 and / or a tunneling body. The load 80 is placed on the adjustment frame assembly 20 and can swing under the drive of the adjustment frame assembly 20, adjusting the swing angle of the load 80 in the left and right directions. The trolley body 10 is the supporting part of the tunneling equipment, and the trolley body 10 can be moved by a transport vehicle to the periphery of the tunneling area 91 to be excavated.

[0029] The trolley counter-pull adjustment mechanism includes an adjustment wheel assembly 30 and at least two tie rod assemblies 40.

[0030] Adjustable wheel assemblies 30 are spaced apart on the underside of the trolley body 10, and their direction of movement intersects the centerline of the load 80. Optionally, the adjustable wheel assemblies 30 may employ an active traction structure, i.e., some of the adjustable wheel assemblies 30 may use a powered wheel set; optionally, the adjustable wheel assembly 30 may include at least one set of drive wheels. The powered wheel set can pull the trolley body 10 to move, guiding the load 80 for fine-tuning.

[0031] Optionally, the adjusting wheel assembly 30 can employ a passive traction mechanism, that is, the adjusting wheel assembly 30 uses a non-powered wheel set, and an external traction or thrust device drives the trolley body 10 to move, thereby realizing the left and right movement of the loaded object 80. This traction device can be a power trolley, a thrust cylinder, a tension cylinder, etc.

[0032] There is a gap between the carrier 80 and the tunnel segment 90. The trolley device also needs to adjust the position of the carrier 80 in the fore-and-aft direction to bring the carrier 80 closer to the tunnel segment 90. Preferably, the carrier 80 includes a sleeve assembly 70, which is welded and fixed to the tunnel segment 90. The following description uses the sleeve assembly 70 as an example to illustrate the carrier 80.

[0033] At least two tie rod assemblies 40 are distributed on both sides of the sleeve assembly 70. Each tie rod assembly 40 is connected to the trolley body 10 and the tunnel segment 90 respectively. At least two tie rod assemblies 40 pull the sleeve assembly 70 to align with the tunnel segment 90 to be excavated area 91.

[0034] The tie rod assembly 40 has a telescopic function. One end of the tie rod assembly 40 is connected to the tunnel segment 90 to form a fixed end, and the other end is connected to the trolley body 10 to form a movable end. When the tie rod assembly 40 is shortened, the trolley body 10 moves laterally toward the tunnel segment 90. When both tie rod assemblies 40 on both sides move, the trolley body 10 can move in a translational manner.

[0035] The adjusting wheel assembly 30 is located at both ends of the trolley body 10, which can guide the trolley device to move along the center direction of the main tunnel, reducing the structural complexity of the trolley device's movement and adjustment. The tie rod assembly 40 connects the trolley body 10 and the tunnel segment 90. By extending and retracting the tie rod assembly 40, the position and angle in the front and rear directions can be adjusted, thereby pulling the trolley body 10 to move and adjust the alignment angle of the sleeve assembly 70, thus achieving convenient alignment between the sleeve assembly 70 and the area to be excavated 91, with high alignment efficiency and low cost.

[0036] In one embodiment, the tie rod assembly 40 includes a tie rod frame 41 and an adjustable connector 42 mounted on the tie rod frame 41. The adjustable connector 42 drives the tie rod frame 41 to extend and retract. The tie rod frame 41 is a rigid structural component and is connected to the tunnel segment 90 or the trolley body 10. Preferably, the tie rod frame 41 is movably connected to the trolley body 10 to enable angle swing adjustment.

[0037] For example, the tie rod frame 41 includes a base fixed to the trolley body 10 and a connecting rod connected to the base. One end of the connecting rod extends out of the base and is connected to the adjustable connector 42. The connecting rod can rotate around the base and achieve a reliable pull-out connection.

[0038] Adjustable connector 42 is mounted on tie rod frame 41 to provide tension. Adjustable connector 42 is a power-operated telescopic component; for example, it can be configured as a hydraulic device, electric cylinder device, mechanical telescopic device, or other pressure device with adjustable telescopic range. When adjusted connector 42 is shortened, it can push the trolley body 10 towards the tunnel segment 90, thus providing pre-stress and adjusting the swing angle of the trolley body 10 relative to the tunnel segment 90.

[0039] Alternatively, the adjustable connector 42 can be connected to the tie rod frame 41 using a reverse push structure. When the adjustable connector 42 is extended, it can push the trolley body 10 toward the tunnel segment 90.

[0040] In one embodiment, the tie rod assembly 40 is symmetrically connected to the trolley body 10, and the adjustable connector 42 is configured as a hydraulic device sleeved and installed on the tie rod frame 41. The adjustable connector 42 is configured as a hydraulic device, which is sleeved on the tie rod frame 41. The extension and retraction movement of the hydraulic device drives the trolley body 10 to move toward the tunnel segment 90 to achieve position adjustment.

[0041] The hydraulic devices on both sides of the trolley body 10 move alternately, thereby driving the trolley body 10 to move gradually toward the tunnel segment 90 until the tunneling device is aligned with the tunneling position.

[0042] In an optional embodiment, the trolley anti-pull adjustment mechanism includes a connecting seat 43 fixed to the tunnel segment 90, and a tie rod frame 41 or an adjustable connector 42 detachably connected to the connecting seat 43. The connecting seat 43 is fixedly connected to the tunnel segment 90 so that the two are an integral structure.

[0043] Optionally, the connector 43 is pre-embedded in the tunnel segment 90. During the fabrication of the tunnel segment 90, the connector 43 is pre-embedded in the tunnel segment 90, forming part of the tunnel segment 90 to improve the tightness of the connection. Optionally, the connector 43 is configured as a screw hole seat or a screw post; the connector 43 is configured as an installation space with a lateral notch.

[0044] Optionally, the connecting seat 43 is cast and connected to the tunnel segment 90. After the tunnel segment 90 is assembled, a ring beam is cast on the tunnel segment 90, and the connecting seat 43 is located on the cast ring beam to form part of the tunnel segment 90. Optionally, the connecting seat 43 is configured as a bolt hole seat or a bolt post.

[0045] In one embodiment, the trolley anti-pull adjustment mechanism further includes support components 50 and support leg components 60, with the trolley body 10 mounted on two sets of support components 50 spaced apart. The support components 50 are located on the lower side of the trolley body 10 and near both ends, with both ends of the support components 50 extending beyond the width of the trolley body 10. The support components 50 can be configured as a beam structure, a support plate structure, or a support frame structure.

[0046] The support leg assembly 60 is connected to both ends of the support assembly 50, and the support leg assembly 60 supports and adjusts the lifting height of the trolley body 10. The support leg assembly 60 can be raised and lowered to assist the trolley body 10 in detaching from the transport vehicle. The trolley body 10, in conjunction with the tie rod assembly 40, can adjust its posture, enabling fine-tuning.

[0047] In an optional embodiment, the support leg assembly 60 is detachably mounted to the support assembly 50. The support leg assembly 60 is movably supported under the support assembly 50, enabling overlapping support. For example, the support leg assembly 60 is a rigid support leg, which is a rigid structure, supporting under the support assembly 50. Subsequently, the transport vehicle is lowered to suspend the trolley body 10 in the air, facilitating the removal of the transport vehicle.

[0048] In another embodiment, the support leg assembly 60 is fixedly mounted to the support assembly 50 and has a lifting and lowering motion relative to the support assembly 50. The support leg assembly 60 is fixedly mounted below or to one side of the support assembly 50, and has a lifting and lowering motion so that the support leg assembly 60 can lift the trolley body 10. For example, the support leg assembly 60 is configured as a hydraulic mechanism to form a lifting support.

[0049] Optionally, the trolley body 10 is slidably mounted on the support assembly 50 so that the trolley body 10 can move relative to the support assembly 50.

[0050] In a preferred embodiment, the trolley counter-pull adjustment mechanism further includes a drive assembly mounted on the support assembly 50. The drive assembly extends and retracts to push against the trolley body 10. The drive assembly is a hydraulic cylinder assembly. The extension and retraction of the hydraulic cylinder assembly can push the trolley body 10 to slide along the support assembly 50, and can be coordinated with the movement of the pull rod assembly 40 to adjust the movement posture of the trolley body 10.

[0051] Preferably, a thrust reverser is welded and fixed to the support assembly 50, and the drive assembly is mounted on the thrust reverser and abuts against the trolley body 10. The drive assembly pushes the trolley body 10 with thrust, and the pull rod assembly 40 applies a pulling force to the trolley body 10, thereby achieving comprehensive force distribution on the trolley body 10.

[0052] Furthermore, the trolley body 10 includes a lifting assembly, which drives the overall lifting and lowering movement of the trolley device. The adjusting frame assembly 20 drives the sleeve assembly 70 to swing horizontally. The lifting assembly is a built-in lifting structure of the trolley body 10, which can work with the support leg assembly 60 to achieve comprehensive lifting and lowering of the trolley body 10. For example, after the transport vehicle detaches, the lifting assembly extends and raises the trolley body 10, thereby facilitating the retraction of the support leg assembly 60. The lifting assembly can adjust the overall height of the trolley body 10 so that the center height of the sleeve assembly 70 coincides with the center position of the area to be excavated 91. Then, through the combined movement of the tie rod assembly 40 and the drive assembly, the trolley body 10 is moved and its posture adjusted, thereby changing the excavation angle of the trolley body and achieving comprehensive and precise adjustment.

[0053] It should be understood that this application is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. This application is intended to cover any variations, uses, or adaptations of the present invention that follow the general principles of this application and include common knowledge or customary technical means in the art that are not disclosed in this invention.

Claims

1. A trolley counter-pull adjustment mechanism for trolley installations in a side passage of a main tunnel, the trolley installation comprising a trolley body and an adjustment frame assembly mounted on the trolley body, the adjustment frame assembly for supporting a load, the load comprising a tunneling body and / or a sleeve, characterized in that, The trolley anti-pull adjustment mechanism includes: Adjustable wheel assemblies are installed at intervals on the main body of the trolley, and the direction of movement of the adjustable wheel assemblies intersects the centerline of the load. At least two tie rod assemblies are distributed on both sides of the carrier, and each tie rod assembly is connected to the trolley body and the tunnel segment respectively; At least two of the tie rod assemblies pull the mount toward the area to be excavated of the tunnel segment.

2. The trolley reverse adjustment mechanism according to claim 1, characterized in that, The pull rod assembly includes a pull rod frame and an adjustable connector mounted on the pull rod frame, the adjustable connector driving the pull rod frame to extend and retract.

3. The trolley reverse adjustment mechanism according to claim 2, characterized in that, The tie rod assembly is symmetrically connected to the trolley body, and the adjustable connector includes a hydraulic device installed on the tie rod frame.

4. The trolley reverse adjustment mechanism according to claim 2, characterized in that, The trolley anti-pull adjustment mechanism includes a connecting seat fixed to the tunnel segment, and the tie rod frame is detachably connected to the connecting seat.

5. The trolley reverse adjustment mechanism according to claim 4, characterized in that, The connecting seat is pre-embedded in the tunnel segment; or... The connecting seat is cast and connected to the tunnel segment.

6. The trolley reverse adjustment mechanism according to claim 1, characterized in that, The trolley anti-pull adjustment mechanism also includes a support assembly and a support leg assembly. The trolley body is mounted on two sets of support assemblies spaced apart. The support leg assembly is connected to both ends of the support assemblies respectively. The support leg assembly is used to adjust the lifting height of the trolley body.

7. The trolley reverse adjustment mechanism according to claim 6, characterized in that, The support leg assembly is detachably mounted to the support assembly; or... The support leg assembly is fixedly installed on the support assembly and moves up and down relative to the support assembly.

8. The trolley reverse-pull adjustment mechanism according to claim 6, characterized in that, The trolley anti-pull adjustment mechanism also includes a drive component installed on the support assembly, which extends and retracts to push against the trolley body.

9. The trolley reverse adjustment mechanism according to claim 1, characterized in that, The adjusting wheel assembly includes at least one set of drive wheels.

10. The trolley reverse-pull adjustment mechanism according to claim 1, characterized in that, The trolley body includes a lifting assembly, which drives the trolley device to move up and down as a whole, and the adjustment frame assembly drives the loaded object to swing horizontally.

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