CN219932194U - Large hollow trolley structure - Google Patents

Abstract

The utility model discloses a large hollow trolley structure which comprises the following components: comprises a rack, a transport mechanism and a travelling mechanism; the platform frame at least comprises 2 planes with different heights, the plane close to the face is the highest plane, the conveying mechanism is arranged on the upper surface of the platform frame, the conveying mechanism is provided with a grabbing arm structure for grabbing and lifting the arch frame, and the travelling mechanism is connected with the platform frame; in this scheme, the rack passes through running gear and walks along the length direction of tunnel, make the rack can be located all the time and be close to face department position and construct, can sideslip the rack through sideslip mechanism, revise the position of rack, make it can be accurate and be located the position department of waiting to be under construction fast, transport mechanism can lift the bow member to the rack, and transport outside the rack scope, make rack inner space region can carry out other construction operations in step, promote whole tunnel efficiency of construction, simultaneously because transport bow member operation outside the rack scope, can guarantee the security of inside other operations.

Description

Large hollow trolley structure

Technical Field

The utility model relates to the technical field of tunnel engineering, in particular to a large hollow trolley structure.

Background

In tunnel guniting operation, when various methods such as a full-section method, a step method and a core soil excavation method are generally utilized to excavate a tunnel, in order to ensure the stability of the tunnel, the tunnel needs to be initially supported, and in the process, related constructors often use excavation rack equipment to install a steel arch on the inner wall of the tunnel. Before the steel arch is installed, a worker needs to lift the steel arch above the bench in advance, and when the worker uses the device and most of devices on the market for tunnel construction, the worker can only use external hoisting equipment or a winch to transport the steel arch. The external hoisting equipment occupies a larger working area in the tunnel, and other working procedures for influencing tunnel excavation are affected: if the winch is installed on the rack to transport the steel arch, the steel arch is difficult to shake in the lifting process. These not only affect the installation efficiency of the steel arch, but also are highly likely to cause safety accidents; meanwhile, when the tunneling machine is used for tunneling, the tunneling machine needs to perform large-amplitude movement at the tunnel face, and the existing supporting structure can prevent the tunneling mechanism from operating on the tunnel face to a certain extent.

That is, in the prior art, the construction efficiency is low when the arch frame is transported, the progress of other working procedures is influenced, potential safety hazards exist, and meanwhile, the operation of a tunneling mechanism at a tunnel face is influenced by the existing rack structure, so that tunneling construction is influenced.

Disclosure of Invention

The utility model aims to provide a large hollow trolley structure aiming at the defects, solves the problems that in the prior art, when an arch frame is transported, the construction efficiency is low, the progress of other working procedures is influenced, and meanwhile, potential safety hazards exist, and meanwhile, the problem that the operation of a tunneling mechanism at a tunnel face is influenced and tunneling construction is influenced due to the existing trolley structure is solved.

The utility model is realized by the following scheme:

a large hollow trolley structure; comprises a rack, a transport mechanism and a travelling mechanism; the platform frame at least comprises 2 planes with different heights, the plane close to the face is the highest plane, the conveying mechanism is arranged on the upper surface of the platform frame, the conveying mechanism is provided with a grabbing arm structure for grabbing and lifting an arch frame, and the travelling mechanism is connected with the platform frame.

Based on the large hollow trolley structure, the large hollow trolley structure further comprises a transverse moving mechanism, wherein the transverse moving mechanism and the travelling mechanism are arranged at the bottom of the rack, and the transverse moving mechanism can be matched with the travelling mechanism to support to realize the integral transverse moving of the rack.

Based on the large hollow trolley structure, the trolley comprises an upper plane, a connecting frame, telescopic supporting legs and a connecting beam; the upper plane is sleeved in the connecting frame, the telescopic supporting legs are respectively arranged at the periphery of the connecting frame, and the connecting cross beam is arranged between adjacent telescopic supporting legs in the length direction; the traversing mechanisms are respectively arranged at the bottom positions of the telescopic supporting legs, and the travelling mechanisms are arranged at the bottom positions of the connecting cross beams.

Based on the large hollow trolley structure, the upper plane is provided with the high-order plane protruding from the plane where the upper plane is located, the high-order plane is connected with the upper plane through the connecting inclined column, and the upper plane is provided with a cavity structure matched with the high-order plane in size.

Based on the large hollow trolley structure, the transverse moving mechanism comprises a transverse moving base, a transverse moving oil cylinder and a transverse moving sliding frame; the transverse moving base is provided with a guide rail, the transverse moving sliding frame is provided with a sliding groove matched with the guide rail, one side of the upper end face of the transverse moving base is provided with a transverse moving hinging seat, one end of the transverse moving oil cylinder is hinged with the transverse moving hinging seat, the other end of the transverse moving oil cylinder is connected with the transverse moving sliding frame, and the transverse moving sliding frame can move along the length direction of the guide rail under the action of the transverse moving oil cylinder; the telescopic support leg is connected with the transverse sliding frame.

Based on the large hollow trolley structure, the telescopic support leg comprises a support leg bottom frame, a support leg telescopic cylinder and a driven support leg, wherein the support leg bottom frame is arranged on the outer surface of the transverse sliding frame, a telescopic hinge seat is arranged in the support leg bottom frame, the driven support leg is sleeved on the support leg bottom frame, a driven hinge seat is arranged in the end face, away from the telescopic hinge seat, of the driven support leg, two ends of the support leg telescopic cylinder are hinged with the telescopic hinge seat and the driven hinge seat respectively, and the relative distance between the support leg bottom frame and the driven support leg is changed under the action of the support leg telescopic cylinder; and two ends of the connecting cross beam are respectively connected with driven supporting legs of adjacent telescopic supporting legs in the length direction.

Based on the large hollow trolley structure, the conveying mechanism comprises a grabbing arm structure, a rotary seat, a sliding seat, a guide rail frame and a sliding rod; the guide rail frame is arranged in the length direction of the rack, a sliding groove matched with the guide rail frame is formed in the sliding seat, a transmission chain is arranged at the center of the guide rail frame, and a driving wheel which is matched with the transmission chain is arranged on the sliding seat; the slide bar sets up in rack width direction's both sides position, the arm structure sets up on sliding seat.

Based on the large hollow trolley structure, the grabbing arm structure comprises a main supporting arm and a pitching oil cylinder, the main supporting arm is hinged to the rotary seat, the pitching oil cylinder is hinged to one end of the main supporting arm, the other end of the pitching oil cylinder is hinged to the side wall of the main supporting arm, a main arm telescopic oil cylinder and an auxiliary supporting arm are arranged in the main supporting arm in an embedded mode, the auxiliary supporting arm is sleeved at the end portion of the main supporting arm, and the auxiliary supporting arm can move along the length direction of the main supporting arm under the action of the main arm telescopic oil cylinder.

Based on the large hollow trolley structure, the end part of the auxiliary supporting arm is provided with a clamping head, and the clamping head comprises a clamping base, a first adjusting oil cylinder, a second adjusting oil cylinder, a bearing plate and an auxiliary connecting seat; one end of the clamping base is hinged to the first supporting base, one end of the auxiliary connecting base is hinged to the first supporting base, a hinge rod which is hinged to the auxiliary connecting base and the clamping base respectively is arranged on the auxiliary connecting base, the base of the first adjusting oil cylinder is hinged to the second supporting base, and meanwhile the telescopic part of the first adjusting oil cylinder is hinged to the bottom of the auxiliary connecting base.

Based on the large hollow trolley structure, the sliding seat comprises a deceleration arm, a deceleration seat, a deceleration oil cylinder and a driving motor, the output end of the driving motor is connected with a driving wheel, the driving wheel is fixed on the sliding seat through a supporting frame, the deceleration seat is arranged on the side wall of the sliding seat, the deceleration arm is hinged to the sliding seat, the deceleration oil cylinder is arranged on the sliding seat, one end of the deceleration oil cylinder is hinged to the sliding seat, and the other end of the deceleration oil cylinder is hinged to the deceleration arm.

In summary, due to the adoption of the technical scheme, the beneficial effects of the utility model are as follows:

1. in the scheme, because of the existence of the high-order plane on the bench near the face, a larger construction operation space is reserved below the bench, and interference between the heading machine and the bench during working can be effectively avoided; the grabbing arm structure has wide adjusting range, multiple degrees of freedom and flexible arch grabbing, can meet the vertical arch requirements of single arch frames and multiple arch frames, can greatly improve the construction efficiency through the combined use of the grabbing arm structure, the sliding seat and the trolley, enables the vertical frames and tunneling construction to be carried out cooperatively, reduces the working time in a worker hole, reduces the safety risk and can greatly improve the economic benefit.

2. In this scheme, the rack can walk through running gear along the length direction of tunnel, make the rack be located all the time and be close to face department position and construct, can sideslip the rack through sideslip mechanism, revise the position of rack, make it can be accurate and be located the position department of waiting to be under construction fast, transport mechanism can lift the bow member to the rack, and transport outside the rack scope, make rack inner space region can carry out other construction operations in step, promote whole tunnel efficiency of construction, simultaneously because transport bow member operation is outside the rack scope, can guarantee the security of inside other operations.

Drawings

FIG. 1 is a schematic perspective view of the whole structure of the present utility model;

FIG. 2 is a schematic view of the entire walking mechanism of the present utility model with the walking mechanism removed;

FIG. 3 is a schematic side view of the structure of FIG. 2;

FIG. 4 is a schematic diagram of the front view of FIG. 2;

FIG. 5 is an enlarged schematic view of the telescopic leg of the present utility model;

FIG. 6 is an enlarged schematic view of the traversing mechanism of the present utility model;

FIG. 7 is an enlarged schematic view of the travel mechanism of the present utility model;

FIG. 8 is a schematic perspective view of a gripper arm structure according to the present utility model;

FIG. 9 is a schematic perspective view of a clamping head according to the present utility model;

FIG. 10 is a schematic perspective view of a support base according to the present utility model;

FIG. 11 is an enlarged schematic view of the driving wheel according to the present utility model;

FIG. 12 is an enlarged schematic view of the deceleration arm of the present utility model;

FIG. 13 is a schematic side view of the structure of the gripper arm in embodiment 3 of the present utility model;

FIG. 14 is a schematic cross-sectional view of the structure of the gripping arm of the present utility model;

description of the drawings: 1. a stand; 2. a transport mechanism; 3. a traversing mechanism; 4. a walking mechanism; 101. an upper plane; 102. a connection frame; 103. a telescopic support leg; 104. a connecting beam; 105. a high order plane; 106. connecting the inclined columns; 107. a leg bottom frame; 108. a landing leg telescopic oil cylinder; 109. a driven leg; 110. a telescopic hinging seat; 111. a driven hinge seat; 301. traversing the base; 302. a traversing oil cylinder; 303. a sideslip sliding frame; 304. a guide rail; 305. a sliding groove; 306. a traversing hinging seat; 307. the upper end is connected with the contact block; 308. the lower end is connected with the contact block; 309. connecting a vertical plate; 401. a support frame; 402. a sprocket; 403. a sidewall support; 601. a grab arm structure; 602. a rotary base; 603. a sliding seat; 604. a guide rail frame; 605. a slide rod; 606. a drive chain; 607. a driving wheel; 608. a main support arm; 609. a pitching oil cylinder; 610. a clamping head; 611. a first support base; 612. a second support base; 613. clamping a base; 614. a first adjusting cylinder; 6145. a second adjusting cylinder; 616. a receiving plate; 617. a support plate; 618. fixing a limit frame; 619. a movable limit frame; 620. a bidirectional oil cylinder; 621. a clamp arm; 622. a clamp arm supporting seat; 623. an auxiliary support arm; 624. a steering motor; 625. a rotary chassis; 626. a deceleration arm; 627. a speed reducing seat; 628. a deceleration cylinder; 629. a drive motor; 630. a guide roller; 631. an auxiliary connecting seat; 632. and a hinge rod.

Detailed Description

All of the features disclosed in this specification, or all of the steps in a method or process disclosed, may be combined in any combination, except for mutually exclusive features and/or steps.

Any feature disclosed in this specification (including any accompanying claims, abstract) may be replaced by alternative features serving the same, equivalent or similar purpose, unless expressly stated otherwise. That is, each feature is one example only of a generic series of equivalent or similar features, unless expressly stated otherwise.

In the description of the present utility model, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "left", "right", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or element in question must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", etc. may include one or more of the feature, either explicitly or implicitly.

Example 1

As shown in fig. 1 to 7, the present utility model provides a technical solution:

a large hollow trolley structure at least comprises a rack 1, a conveying mechanism 2, a traversing mechanism 3 and a travelling mechanism 4; the rack includes 2 planes of difference in height at least, and the plane that is close to face department is the highest plane, and transport mechanism 2 sets up at rack 1 upper surface, is provided with the arm grabbing structure that is used for grabbing the arch frame on the transport mechanism 2, and sideslip mechanism 3 and running gear 4 set up in rack 1 bottom position, and sideslip mechanism 3 can cooperate running gear 4 to support the whole sideslip of realizing rack 1, and rack 1 is inside to be big hollow structure.

Based on the above-mentioned structure, rack 1 can walk along the length direction of tunnel through running gear 4, make rack 1 can be located all the time and be close to face department position and construct, can carry out the sideslip with rack 1 through sideslip mechanism 3, revise the position of rack 1, make it can be accurate and be located the position department of waiting to be under construction fast, transport mechanism 2 can lift the bow member to rack 1, and transport outside rack 1 scope, make rack 1 inner space region can carry out other construction operations in step, promote whole tunnel efficiency of construction, simultaneously because transport bow member operation is outside rack 1 scope, can guarantee the security of other operations of inside.

Based on the above structure, the stand 1 may include an upper plane 101, a connection frame 102, a telescopic leg 103, and a connection beam 104; the upper plane 101 is sleeved in the connecting frame 102 to form a supporting surface for supporting the transport mechanism 2, the telescopic support legs 103 are respectively arranged around the connecting frame 102, and the connecting cross beam 104 is arranged between the adjacent telescopic support legs 103 in the length direction.

The traversing mechanisms 3 are respectively arranged at the bottom positions of the telescopic supporting legs 103, and the traveling mechanisms 4 are arranged at the bottom positions of the connecting cross beams 104.

Based on the structure, under the cooperation of the telescopic support legs 103, the traversing mechanism 3 and the travelling mechanism 4 are alternately contacted with the ground, when the traversing mechanism 3 is separated from the ground, the oil cylinder in the traversing mechanism 3 acts to change the position of the traversing mechanism 3, and then the whole is traversed when the traversing mechanism is contacted with the ground next time; or when the travelling mechanism 4 is separated from the ground, the oil cylinder in the traversing mechanism 3 acts to change the position of the travelling mechanism 4, and then the whole is traversed when the travelling mechanism contacts the ground next time.

As an example, a higher-order plane 105 protruding from the plane where the higher-order plane 101 is located is provided on the upper plane 101, the higher-order plane 105 is connected to the upper plane 101 through a connecting diagonal column 106, and a cavity structure with a size adapted to that of the higher-order plane 105 is provided on the upper plane 101.

Based on the above structure, through setting up the high order plane 105, make the rack 1 height that is close to face department better, not only can accomplish more construction operations above that like the bow member assembly, beat advance stock etc. simultaneously also make the interior air-drop face scope that rack 1 is close to the face bigger, more convenient construction operations. Avoiding interference with other working procedures at the face.

As an example, the traversing mechanism 3 may include a traversing base 301, a traversing cylinder 302, and a traversing slide frame 303; the transverse moving base 301 is provided with a guide rail 304, the transverse moving sliding frame 303 is provided with a sliding groove 305 matched with the guide rail 304, one side of the upper end surface of the transverse moving base 301 is provided with a transverse moving hinge seat 306, one end of the transverse moving oil cylinder 302 is hinged with the transverse moving hinge seat 306, the other end of the transverse moving oil cylinder 302 is connected with the transverse moving sliding frame 303, and the transverse moving sliding frame 303 can move along the length direction of the guide rail 304 under the action of the transverse moving oil cylinder 302; the telescoping leg 103 is connected to a traversing carriage 303.

Based on the above structure, when the traversing base 301 contacts with the bottom surface, under the action of the traversing cylinder 302, the traversing sliding frame 303 can move along the length direction of the guide rail 304, and at this time, the traversing sliding block drives the telescopic supporting leg 103 to move, and then cooperates with the change of other telescopic supporting legs 103 to realize the traversing operation of the rack 1.

As an example, the sliding groove 305 may include an upper end contact block 307, a lower end contact block 308, and a connection riser 309; the upper end contact block 307 and the lower end contact block 308 are respectively arranged on the connecting riser 309 in parallel, and the guide rail 304 is arranged in a cavity structure formed between the upper end contact block 307 and the lower end contact block 308, so that the guide rail 304 is clamped between the upper end contact block 307 and the lower end contact block 308, and the connecting riser 309 is arranged at the bottom position of the traverse sliding frame 303.

Based on the above structure, the guide rail 304 can be stably limited by the upper end contact block 307 and the lower end contact block 308, so that the traverse sliding frame 303 can be more stable when driven to move.

As an example, the telescopic support 103 may include a support bottom frame 107, a support telescopic cylinder 108 and a driven support 109, where the support bottom frame is disposed on the outer surface of the sideslip sliding frame 303, a telescopic hinge seat 110 is disposed in the support bottom frame, the driven support 109 is sleeved on the support bottom frame 107, a driven hinge seat 111 is disposed in the end surface of the driven support 109 far from the telescopic hinge seat 110, two ends of the support telescopic cylinder 108 are hinged with the telescopic hinge seat 110 and the driven hinge seat 111 respectively, and the relative distance between the support bottom frame and the driven support 109 is changed under the action of the support telescopic cylinder 108; the connecting beam 104 is connected at both ends thereof to driven legs 109 of the adjacent telescopic legs 103 in the longitudinal direction, respectively.

Based on the above structure, the whole process of the transverse movement of the rack 1 is as follows: when the traversing mechanism 3 is separated from the bottom surface, when traversing is needed, traversing cylinders 302 on the same side of the rack 1 synchronously move, traversing cylinders 302 on the opposite side of the rack 1 cooperate to move the traversing base 301 for a preset specific time, then the supporting leg telescopic cylinders 108 move to contact the traversing base 301 with the bottom surface, the travelling mechanism 4 and the rack 1 on the travelling mechanism are lifted, then the supporting leg telescopic cylinders 108 move again, the whole rack 1 is traversed integrally, and if the traversing distance is still insufficient, the traversing steps are repeated until the traversing to the preset position.

By way of example, the running gear 4 may be a track sprocket 402 structure, which includes a support 401 and a sprocket 402, where the sprocket 402 is sleeved on the circumferential position of the support 401, and the connecting beam 104 is connected to the support 401 through a side wall support 403, so that the sprocket 402 does not interfere with the connecting beam 104 during running.

The track sprocket 402 is configured as is common in the art, and this embodiment is not described in detail herein.

Example 2

As shown in fig. 8 to 12, based on the above-described embodiment 1, this embodiment is similar to embodiment 1, except that the transport mechanism may include a gripping arm structure 601, a rotary base 602, a sliding base 603, a rail frame 604, and a slide bar 605; the guide rail frame 604 is arranged at the central position of the rack in the length direction, a sliding groove matched with the guide rail frame 604 is arranged on the sliding seat 603, a transmission chain 606 is arranged at the central position of the guide rail frame 604, and a driving wheel 607 matched with the transmission chain 606 is arranged on the sliding seat 603; the slide bar 605 is provided at both side positions in the rack width direction, and the gripping arm structure 601 is provided on the slide seat 603.

Based on the above structure, the grabbing arm structure 601 is used for grabbing and lifting the folding arch, when the lifting mechanism lifts the folding arch to a preset position, the cross connection with the grabbing arm structure 601 is completed, the grabbing arm structure 601 can firmly clamp the folding arch, then the lifting mechanism can rotate to shift the movable ends on two sides of the folding arch to the sliding rod 605, the grabbing arm structure 601 grabs and lifts the arch to move along the length direction of the track frame, and the driving wheel 607 provides power for the grabbing arm structure, so that the arch is stably transported above the rack. Since only one track and gripping arm structure 601 is provided. Therefore, in the process of transporting the arch, firstly, the arch is grabbed and moved to a preset position (at least half of the length of the track frame) through the grabbing arm structure 601, at this time, the folding arch is positioned at the rear position of the sliding seat 603, then the grabbing arm structure 601 releases the folding arch, the whole folding arch is transversely put on the trolley frame, the grabbing arm structure 601 returns to the preset position and then turns, the folding arch is grabbed again and transported to the next step, at this time, the folding arch is positioned at the front position of the sliding seat 603 until the arch is transported to the position where the tunnel face is to be erected.

As an example, the gripper arm structure 601 may comprise a main support arm 608 and a pitch cylinder 609, the main support arm 608 being hinged to the turret 602, the pitch cylinder 609 being hinged to the turret 602 at one end and to the side wall of the main support arm 608 at the other end, the pitch cylinder 609 being symmetrically arranged about an axis along the length of the main support arm 608;

a main arm telescopic cylinder and an auxiliary supporting arm 623 are embedded in the main supporting arm 608, the auxiliary supporting arm 623 is sleeved at the end part of the main supporting arm 608, and the auxiliary supporting arm 623 can move along the length direction of the main supporting arm 608 under the action of the main arm telescopic cylinder;

the clamp head 610 may be provided on an end of the auxiliary support arm 623, a first support seat 611 and a second support seat 612 may be provided between the clamp head 610 and the auxiliary support arm 623, the first support seat 611 being provided at an end position of the auxiliary support arm 623 and extending a predetermined distance in a direction away from the end of the auxiliary support arm 623, the second support arm being provided on a side wall of the auxiliary support arm 623 and extending a predetermined distance in a direction away from the side wall of the auxiliary support arm 623;

the clamp head 610 may include a clamp base 613, a first adjustment cylinder 614, a second adjustment cylinder 615, and a receiving plate 616; one end of the clamping base 613 is hinged with the first supporting seat 611, the base of the first adjusting oil cylinder 614 is hinged with the second supporting seat 612, and meanwhile, the telescopic part of the first adjusting oil cylinder 614 is hinged with the bottom of the clamping base 613;

the bearing plate 616 is arranged at the top position of the clamping base 613, the bearing plate 616 is hinged with the clamping base 613, the hinged position of the bearing plate 616 and the clamping base 613 is arranged at the central position of the bearing plate 616, the base of the second adjusting oil cylinder 615 is hinged with the side wall of the clamping base 613, a connecting block is arranged between the bearing plate 616 and the telescopic part of the second adjusting oil cylinder 615, and the second adjusting oil cylinder 615 is hinged with the connecting block.

Based on the above structure, when the folding arch needs to be clamped, according to the actual requirement of the site, the length of the auxiliary supporting arm 623 is adjusted, so that the clamping head 610 can be quickly contacted with the folding arch, through the arrangement of the pitching oil cylinders 609 on the main supporting arm 608, when the angle difference is large, the pitching oil cylinders 609 can be adjusted, so that the clamping head 610 initially reaches a preset position, then, the contact angle between the bearing plate 616 and the arch is finely adjusted through the first adjusting oil cylinders 614 on the clamping head 610, so that the bearing plate 616 is contacted with the arch as stably as possible, the swinging angle of the second adjusting oil cylinders 615 can be adjusted, so that the bearing plate 616 can be matched with the arch as closely as possible, the stability of the arch during hinging is increased, in the scheme, 2-fold pitching adjustment is set, telescopic adjustment and swinging adjustment are matched, and finally, the bearing plate 616 can be contacted with the arch stably at any angle position in space, so that the stability, safety and high efficiency during contact are ensured.

As an example, the receiving plate 616 may include a support plate 617, a fixed limit frame 618, and a movable limit frame 619; the fixed limit frame 618 is arranged on the end surface of the support plate 617 far away from the clamping base 613, the fixed limit frame 618 is symmetrically arranged along the center position of the support plate 617 in the length direction, and the movable limit frame 619 is arranged close to the fixed limit frame 618.

Based on the above structure, the limiting frame 618 can limit the limiting position of the arch frame, so as to prevent the arch frame from being separated from the receiving plate 616, and the arch frame can be stably clamped by the movable limiting frame 619.

As an example, the movable limit frame 619 may include a bi-directional cylinder 620, a clamp arm 621, and a clamp arm support 622; the clamping arm support seat 622 is arranged at the bottom of the support plate 617, the clamping arms 621 are respectively hinged with two ends of the clamping arm support seat 622, the two-way oil cylinders 620 are respectively hinged with the clamping arms 621, and the two clamping arms 621 move close to or away from each other under the action of the two-way oil cylinders 620.

Based on the above structure, when the arch is fixed, the receiving plate 616 is controlled to move to a predetermined position, the fixed limiting frame 618 is clamped into the arch, and then the bidirectional cylinder 620 is controlled to act to clamp the arch.

As an example, a cleat may be provided at the contact end of the clip arm 621 with the arch, and a cleat may be provided at the contact portion of the support plate 617 with the arch, and the degree of stability of the clip may be further ensured by providing a cleat.

As an example, the rotary base 602 may include a steering motor 624 and a rotary chassis 625, the rotary chassis 625 is disposed on the sliding base 603, the steering motor 624 is connected with the rotary chassis 625, and the steering motor 624 acts to rotate the rotary chassis 625, thereby rotating the main support arm 608.

As an example, the sliding seat 603 may include a deceleration arm 626, a deceleration seat 627, a deceleration cylinder 628 and a driving motor 629, wherein an output end of the driving motor 629 is connected with the driving wheel 607, the driving wheel 607 is disposed at a center position of the sliding seat, the driving wheel 607 is fixed on the sliding seat 603 through a supporting frame, and the driving wheel 607 can be contacted with the transmission chain 606 under the driving of the driving motor 629 to drive the sliding seat 603 to move along a direction of the guide rail;

the speed reduction seat 627 is arranged on the side wall of the sliding seat 603, the speed reduction arm 626 is hinged with the sliding seat 603, the speed reduction oil cylinder 628 is arranged on the sliding seat 603, one end of the speed reduction oil cylinder 628 is hinged with the sliding seat 603, the other end of the speed reduction oil cylinder 628 is hinged with the speed reduction arm 626, and a wear-resisting layer is arranged on the contact part of the speed reduction arm 626 and the guide rail.

The deceleration arm 626, the deceleration seat 627 and the deceleration cylinder 628 are symmetrically disposed along the center of the sliding seat 603.

Based on the above structure, the driving motor 629 rotates forward to drive the sliding seat 603 to move forward, the driving motor 629 rotates backward to drive the sliding seat 603 to move backward, and when the driving motor 629 stops rotating, the sliding seat 603 stops moving, but due to the inertia of heavy machinery, the decelerating arm 626 is needed to assist deceleration, so that the moving process is safer, when braking is needed, the decelerating cylinders 628 on two sides act, so that the friction resistance of the decelerating arm 626 is in forced contact with the guide rail, the speed of the whole sliding seat 603 is reduced, and the reduction is realized.

As an example, the bottom of the sliding seat 603 may be provided with a guide roller 630, and the guide roller 630 is caught in a guide rail, so that the sliding seat 603 may move more stably and smoothly by the guide roller 630.

In the scheme, because of the existence of the high-order plane on the bench near the face, a larger construction operation space is reserved below the bench, and interference between the heading machine and the bench during working can be effectively avoided; the grabbing arm structure has wide adjusting range, multiple degrees of freedom and flexible arch grabbing, can meet the vertical arch requirements of single arch frames and multiple arch frames, can greatly improve the construction efficiency through the combined use of the grabbing arm structure, the sliding seat and the trolley, enables the vertical frames and tunneling construction to be carried out cooperatively, reduces the working time in a worker hole, reduces the safety risk and can greatly improve the economic benefit.

Example 3

As shown in fig. 13 to 14, based on the above embodiment 1, the present embodiment provides a gripping arm structure different from the structure of embodiment 2, and the gripping arm structure 601 may include a main support arm 608 and a pitch cylinder 609, wherein the main support arm 608 is hinged to the pivoting base 602, the pitch cylinder 609 is hinged to the pivoting base 602 at one end and is hinged to a side wall of the main support arm 608 at the other end, and the pitch cylinders 609 are symmetrically arranged along an axis along a length direction of the main support arm 608;

a main arm telescopic cylinder and an auxiliary supporting arm 623 are embedded in the main supporting arm 608, the auxiliary supporting arm 623 is sleeved at the end part of the main supporting arm 608, and the auxiliary supporting arm 623 can move along the length direction of the main supporting arm 608 under the action of the main arm telescopic cylinder;

the clamp head 610 may be provided on an end of the auxiliary support arm 623, and a first support seat 611 and a second support seat 612 are provided between the clamp head 610 and the auxiliary support arm 623, the first support seat 611 being provided at an end position of the auxiliary support arm 623 and extending a predetermined distance in a direction away from the end of the auxiliary support arm 623, and the second support arm being provided on a side wall of the auxiliary support arm 623 and extending a predetermined distance in a direction approaching the side wall of the auxiliary support arm 623;

the clamping head 610 may include a clamping base 613, a first adjustment cylinder 614, a second adjustment cylinder 615, a receiving plate 616, and an auxiliary connection seat 631; one end of the clamping base 613 is hinged with the first supporting seat 611 to form a first hinge point, one end of the auxiliary connecting seat 631 is hinged with the first supporting seat to form a second hinge point, and the second hinge point is positioned below the first hinge point, so that the clamping base can avoid the auxiliary connecting seat when acting, interference can not occur, a hinge rod 632 which is respectively hinged with the auxiliary connecting seat and the clamping base is arranged on the auxiliary connecting seat, the base of the first adjusting oil cylinder 614 is hinged with the second supporting seat 612, and meanwhile, the telescopic part of the first adjusting oil cylinder 614 is hinged with the bottom position of the auxiliary connecting seat;

when the clamping head performs clamping operation in a low-looking space, the pitch angle of the second adjusting cylinder of the clamping head in embodiment 2 may affect the plane in which the second adjusting cylinder is located, so that the second adjusting cylinder 615, the auxiliary connecting seat 631 and the clamping base 613 form a multi-link structure, which can generate a smaller pitch angle during movement, so as to avoid interference with the plane.

The bearing plate 616 is arranged at the top position of the clamping base 613, the bearing plate 616 is hinged with the clamping base 613, the hinged position of the bearing plate 616 and the clamping base 613 is arranged at the central position of the bearing plate 616, the base of the second adjusting oil cylinder 615 is hinged with the side wall of the clamping base 613, a connecting block is arranged between the bearing plate 616 and the telescopic part of the second adjusting oil cylinder 615, and the second adjusting oil cylinder 615 is hinged with the connecting block.

Based on the above structure, when the folding arch needs to be clamped, according to the actual requirement of the site, the length of the auxiliary supporting arm 623 is adjusted, so that the clamping head 610 can be quickly contacted with the folding arch, through the arrangement of the pitching oil cylinders 609 on the main supporting arm 608, when the angle difference is large, the pitching oil cylinders 609 can be adjusted, so that the clamping head 610 initially reaches a preset position, then, the contact angle between the bearing plate 616 and the arch is finely adjusted through the first adjusting oil cylinders 614 on the clamping head 610, so that the bearing plate 616 is contacted with the arch as stably as possible, the swinging angle of the second adjusting oil cylinders 615 can be adjusted, so that the bearing plate 616 can be matched with the arch as closely as possible, the stability of the arch during hinging is increased, in the scheme, 2-fold pitching adjustment is set, telescopic adjustment and swinging adjustment are matched, and finally, the bearing plate 616 can be contacted with the arch stably at any angle position in space, so that the stability, safety and high efficiency during contact are ensured.

As an example, the receiving plate 616 may include a support plate 617, a fixed limit frame 618, and a movable limit frame 619; the fixed limit frame 618 is arranged on the end surface of the support plate 617 far away from the clamping base 613, the fixed limit frame 618 is symmetrically arranged along the center position of the support plate 617 in the length direction, and the movable limit frame 619 is arranged close to the fixed limit frame 618.

Based on the above structure, the limiting frame 618 can limit the limiting position of the arch frame, so as to prevent the arch frame from being separated from the receiving plate 616, and the arch frame can be stably clamped by the movable limiting frame 619.

As an example, the movable limit frame 619 may include a bi-directional cylinder 620, a clamp arm 621, and a clamp arm support 622; the clamping arm support seat 622 is arranged at the bottom of the support plate 617, the clamping arms 621 are respectively hinged with two ends of the clamping arm support seat 622, the two-way oil cylinders 620 are respectively hinged with the clamping arms 621, and the two clamping arms 621 move close to or away from each other under the action of the two-way oil cylinders 620.

Based on the above structure, when the arch is fixed, the receiving plate 616 is controlled to move to a predetermined position, the fixed limiting frame 618 is clamped into the arch, and then the bidirectional cylinder 620 is controlled to act to clamp the arch.

As an example, a cleat may be provided at the contact end of the clip arm 621 with the arch, and a cleat may be provided at the contact portion of the support plate 617 with the arch, and the degree of stability of the clip may be further ensured by providing a cleat.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.

Claims (7)

1. The utility model provides a big hollow trolley structure which characterized in that: comprises a rack, a transport mechanism and a travelling mechanism; the platform frame at least comprises 2 planes with different heights, the plane close to the face is the highest plane, the conveying mechanism is arranged on the upper surface of the platform frame, the conveying mechanism is provided with a grabbing arm structure for grabbing and lifting the arch frame, and the travelling mechanism is connected with the platform frame; the device comprises a rack, a travelling mechanism, a transverse moving mechanism and a control mechanism, wherein the travelling mechanism is arranged at the bottom of the rack; the rack comprises an upper plane, a connecting frame, telescopic supporting legs and a connecting beam; the upper plane is sleeved in the connecting frame, the telescopic supporting legs are respectively arranged at the periphery of the connecting frame, and the connecting cross beam is arranged between adjacent telescopic supporting legs in the length direction; the transverse moving mechanisms are respectively arranged at the bottom positions of the telescopic supporting legs, and the travelling mechanisms are arranged at the bottom positions of the connecting cross beams; the conveying mechanism comprises a grabbing arm structure, a rotary seat, a sliding seat, a guide rail frame and a sliding rod; the guide rail frame is arranged in the length direction of the rack, a sliding groove matched with the guide rail frame is formed in the sliding seat, a transmission chain is arranged at the center of the guide rail frame, and a driving wheel which is matched with the transmission chain is arranged on the sliding seat; the sliding rods are arranged at two sides of the rack in the width direction, and the grabbing arm structure is arranged on the sliding seat; the travelling mechanism is of a crawler-type chain wheel structure.

2. A large hollow trolley structure as claimed in claim 1, wherein: the upper plane is provided with a high-order plane protruding from the plane where the upper plane is located, the high-order plane is connected with the upper plane through a connecting inclined column, and the upper plane is provided with a cavity structure with the size matched with that of the high-order plane.

3. A large hollow trolley structure as claimed in claim 1, wherein: the transverse moving mechanism comprises a transverse moving base, a transverse moving oil cylinder and a transverse moving sliding frame; the transverse moving base is provided with a guide rail, the transverse moving sliding frame is provided with a sliding groove matched with the guide rail, one side of the upper end face of the transverse moving base is provided with a transverse moving hinging seat, one end of the transverse moving oil cylinder is hinged with the transverse moving hinging seat, the other end of the transverse moving oil cylinder is connected with the transverse moving sliding frame, and the transverse moving sliding frame can move along the length direction of the guide rail under the action of the transverse moving oil cylinder; the telescopic support leg is connected with the transverse sliding frame.

4. A large hollow trolley structure as claimed in claim 1, wherein: the telescopic support leg comprises a support leg bottom frame, a support leg telescopic oil cylinder and a driven support leg, wherein the support leg bottom frame is arranged on the outer surface of the transverse sliding frame, a telescopic hinge seat is arranged in the support leg bottom frame, the driven support leg is sleeved on the support leg bottom frame, a driven hinge seat is arranged in the end face, far away from the telescopic hinge seat, of the driven support leg, two ends of the support leg telescopic oil cylinder are hinged with the telescopic hinge seat and the driven hinge seat respectively, and the relative distance between the support leg bottom frame and the driven support leg is changed under the action of the support leg telescopic oil cylinder; and two ends of the connecting cross beam are respectively connected with driven supporting legs of adjacent telescopic supporting legs in the length direction.

5. A large hollow trolley structure as claimed in claim 1, wherein: the grabbing arm structure comprises a main supporting arm and a pitching oil cylinder, wherein the main supporting arm is hinged with the rotary seat, the pitching oil cylinder is hinged with one end of the main supporting arm, the other end of the pitching oil cylinder is hinged with the side wall of the main supporting arm, a main arm telescopic oil cylinder and an auxiliary supporting arm are embedded into the main supporting arm, the auxiliary supporting arm is sleeved at the end part of the main supporting arm, and the auxiliary supporting arm can move along the length direction of the main supporting arm under the action of the main arm telescopic oil cylinder.

6. A large hollow trolley structure as claimed in claim 5, wherein: the end part of the auxiliary supporting arm is provided with a clamping head, and the clamping head comprises a clamping base, a first adjusting oil cylinder, a second adjusting oil cylinder, a bearing plate and an auxiliary connecting seat; one end of the clamping base is hinged to the first supporting base, one end of the auxiliary connecting base is hinged to the first supporting base, a hinge rod which is hinged to the auxiliary connecting base and the clamping base respectively is arranged on the auxiliary connecting base, the base of the first adjusting oil cylinder is hinged to the second supporting base, and meanwhile the telescopic part of the first adjusting oil cylinder is hinged to the bottom of the auxiliary connecting base.

7. A large hollow trolley structure as claimed in claim 5, wherein: the sliding seat comprises a deceleration arm, a deceleration seat, a deceleration oil cylinder and a driving motor, wherein the output end of the driving motor is connected with a driving wheel, the driving wheel is fixed on the sliding seat through a supporting frame, the deceleration seat is arranged on the side wall of the sliding seat, the deceleration arm is hinged to the sliding seat, the deceleration oil cylinder is arranged on the sliding seat, one end of the deceleration oil cylinder is hinged to the sliding seat, and the other end of the deceleration oil cylinder is hinged to the deceleration arm.