CN210084869U

CN210084869U - Tunnel overhead working truck and grabbing mechanism thereof

Info

Publication number: CN210084869U
Application number: CN201920634595.4U
Authority: CN
Inventors: 谢子云; 温艳东
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-05-06
Filing date: 2019-05-06
Publication date: 2020-02-18
Anticipated expiration: 2029-05-06

Abstract

The utility model relates to a tunnel high altitude construction car and snatch mechanism thereof. Should snatch mechanism includes: one end of the mounting arm is used for being connected with the arm support; two opposite ends of each grabbing piece are respectively provided with a hinged part and a clamping part, the two hinged parts are coaxially hinged to the other end of the mounting arm, and the two clamping parts are oppositely arranged to form a fixing position for clamping a workpiece; the driving assembly is arranged between the mounting arm and each grabbing piece and is used for driving the two grabbing pieces to rotate oppositely around the hinge axis of the hinge part; during the mutual opposite rotation of the two grabbing pieces around the hinge axis of the hinge part, the two clamping parts approach or move away from each other. In the grabbing mechanism, the driving assembly drives the two grabbing pieces to rotate oppositely around the hinge axis of the hinge portion, so that the two clamping portions are close to each other, and the workpiece is clamped and fixed. Therefore, automatic grabbing of the workpiece is achieved, manual loading is avoided, and the efficiency of high-altitude operation construction is improved.

Description

Tunnel overhead working truck and grabbing mechanism thereof

Technical Field

The utility model relates to an engineering machine tool equipment field especially relates to a tunnel high altitude construction car and snatchs mechanism thereof.

Background

When the high-altitude operation is carried out, the crane is required to be used for hoisting personnel and required materials to a designated station for the high-altitude operation. However, when performing high-altitude work in places where the height space is limited, such as tunnels, for example, in the overlapping construction of steel members in tunnels, it is difficult for a crane to function.

In actual tunnel construction, two loaders are generally adopted, wherein one loader is used for hoisting and positioning the steel member at a designated station, and the other loader is used for hoisting and transporting personnel to a proper position, so that welding construction is carried out on the steel member. However, a general loader cannot grab and fix the steel member, and the steel member needs to be manually loaded on the loader, which wastes time and labor, and the construction efficiency is low.

SUMMERY OF THE UTILITY MODEL

Therefore, the tunnel overhead working truck and the grabbing mechanism thereof with the defect improved are needed to solve the problems that steel members need to be loaded on a loader manually, time and labor are wasted, and construction efficiency is low.

A snatch mechanism for tunnel high altitude construction car's cantilever crane, it includes to snatch the mechanism:

one end of the mounting arm is used for being connected with an arm support of the tunnel overhead working truck;

two grabbing pieces, wherein two opposite ends of each grabbing piece are respectively provided with a hinge part and a clamping part, the two hinge parts are coaxially hinged and connected to the other opposite ends of the mounting arms, and the two clamping parts are oppositely arranged to form a fixing position for clamping a workpiece; and

the driving assembly is arranged between the mounting arm and each grabbing piece and used for driving the two grabbing pieces to rotate oppositely around the hinge axis of the hinge part; during the mutual opposite rotation of the two grabbing pieces around the hinge axis of the hinge part, the two clamping parts approach or move away from each other.

Above-mentioned snatch mechanism, when actually snatching the operation, drive assembly drive two and grab the piece and around the articulated axis antiport of articulated portion for two clamping parts keep away from each other, and two clamping parts open this moment promptly. The arm support drives the grabbing mechanism to move, so that the workpiece is located at a fixed position between the two clamping parts. The drive assembly then drives the two gripper members to rotate in opposite directions relative to each other about the hinge axis of the hinge portion, so that the two clamping portions approach each other, i.e., the two clamping portions are closed, thereby clamping and fixing the workpiece. Therefore, automatic grabbing of the workpiece is achieved, manual loading is avoided, and the efficiency of high-altitude operation construction is improved.

In one embodiment, the drive assembly comprises two hydraulic cylinders in one-to-one correspondence with the two grabbers;

the two opposite ends of each hydraulic cylinder are hinged to the corresponding grabbing piece and the corresponding mounting arm so as to drive the two grabbing pieces to rotate oppositely around the hinge axis of the hinge portion.

In one embodiment, the two gripping members are symmetrically arranged with respect to the axis of the mounting arm; the two hydraulic cylinders are symmetrically arranged relative to the axis of the mounting arm.

In one embodiment, two of said hydraulic cylinders are coaxially hingedly connected to said mounting arm.

In one embodiment, the grasping element further comprises a body fixedly connected with the hinge part and the clamping part at two opposite ends respectively;

the hinge portion and the clamping portion both extend to the same side of the body.

In one embodiment, one end of the hydraulic cylinder is hingedly connected to one end of the body near the hinge, and the opposite end is hingedly connected to the middle of the mounting arm.

In one embodiment, the gripping mechanism further comprises two gripping palms which are respectively hinged to the ends of the two clamping parts facing each other;

the sides of the two grabbing palms facing each other are provided with clamping surfaces.

In one embodiment, the hinge axis of the opposite ends of the hydraulic cylinder are parallel to the hinge axis of the hinge.

In one embodiment, the gripping mechanism further comprises a rotary driving device, and the rotary driving device is mounted at one end, away from the gripping member, of the mounting arm and is used for being connected with an arm support of the tunnel high-altitude operation vehicle so as to drive the mounting arm to rotate around an axis of the mounting arm relative to the arm support of the tunnel high-altitude operation vehicle.

A tunnel aerial platform comprising a gripping mechanism as described in any one of the embodiments above.

Drawings

Fig. 1 is a schematic structural view of a tunnel overhead working truck according to an embodiment of the present invention;

FIG. 2 is a schematic structural view of a gripping mechanism of the tunnel aerial platform of FIG. 1;

FIG. 3 is a schematic view of the configuration of the grasping element of the grasping mechanism shown in FIG. 2;

FIG. 4 is a connecting structure of a grabbing mechanism and a fly jib of the tunnel aerial work platform vehicle shown in FIG. 1;

fig. 5 is a schematic structural view of a tunnel overhead working truck according to another embodiment of the present invention;

fig. 6 is a schematic structural view of the tunnel aerial work platform shown in fig. 1 after the fly jib is removed.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Fig. 1 shows a schematic structural diagram of a tunnel aerial work platform in an embodiment of the present invention. Fig. 2 shows a schematic structural view of the gripping mechanism of the tunnel aerial vehicle shown in fig. 1. Fig. 3 shows a schematic view of the gripper mechanism shown in fig. 2. Fig. 4 shows a connecting structure of the gripping mechanism and the fly jib of the tunnel aerial work platform shown in fig. 1. Fig. 5 shows a schematic structural diagram of a tunnel aerial cage in another embodiment of the present invention. Fig. 6 shows a schematic structural view of the tunnel aerial vehicle shown in fig. 1 with the booms removed. For the purpose of illustration, the drawings show only the structures pertinent to the present invention.

As shown in fig. 1, fig. 2 and fig. 3, the grabbing mechanism 60 in an embodiment of the present invention is used for the arm support of the tunnel overhead working truck to move the grabbing mechanism 60 so as to grab the workpiece by the grabbing mechanism 60 by controlling the arm support of the tunnel overhead working truck to move.

The gripper mechanism 60 includes a mounting arm 61, a gripper 62, and a drive assembly 63. One end of the mounting arm 61 is used for being connected with an arm support of the tunnel overhead working truck. The grasping members 62 include two, and each grasping member 62 has a hinge portion 622 (see fig. 3) and a holding portion 624 (see fig. 3) at opposite ends thereof. Two hinge portions 622 are coaxially and hingedly connected to the opposite ends of the mounting arm 61, and two clamping portions 624 are oppositely disposed to form a fixed position for clamping a workpiece.

A drive assembly 63 is provided between the mounting arm 61 and each of the grasping members 62 for driving the two grasping members 62 to rotate in opposite directions relative to each other about the hinge axis of the hinge portion 622. During the mutual opposite rotation of the two grasping members 62 about the hinge axis of the hinge portion 622, the two gripping portions 624 approach or move away from each other. When the two clamping portions 624 are brought close to each other, they can clamp a workpiece in a fixed position therebetween. The fixed position workpiece between the two clamp portions 624 may be released when the two clamp portions are moved away from each other.

In the grasping mechanism 60, during actual grasping operation, the driving assembly 63 drives the two grasping members 62 to rotate in opposite directions around the hinge axis of the hinge portion 622, so that the two holding portions 624 are away from each other, i.e., the two holding portions 624 are opened. The arm support drives the grabbing mechanism 60 to move, so that the workpiece is located at a fixed position between the two clamping portions 624. The driving assembly 63 then drives the two grasping members 62 to rotate in opposite directions about the hinge axis of the hinge portion 622 so that the two holding portions 624 approach each other, i.e., the two holding portions 624 are closed, thereby clamping and fixing the workpiece. Therefore, automatic grabbing of the workpiece is achieved, manual loading is avoided, and the efficiency of high-altitude operation construction is improved.

In an embodiment of the present invention, the driving assembly 63 includes two grabbing hydraulic cylinders 632 corresponding to the two grabbing members 62 one to one. Each of the gripper cylinders 632 is hingedly connected at opposite ends to the corresponding gripper member 62 and mounting arm 61 to drive the two gripper members 62 to counter-rotate with respect to each other about the hinge axis of the hinge 622. In this manner, by extension and retraction of the gripping cylinder 632, a mutual counter-rotation of the two gripping members 62 about the hinge axis of the hinge 622 is achieved.

In a particular embodiment, the two gripping members 62 are arranged symmetrically with respect to the axis of the mounting arm 61. The two gripper cylinders 632 are arranged symmetrically with respect to the axis of the mounting arm 61. Therefore, the workpiece is clamped more stably and reliably.

In the embodiment shown, two grabbing cylinders 632 are coaxially and hingedly connected at one end to the mounting arm 61. Thus, the operation stability of the gripping hydraulic cylinder 632 is good, and the mounting structure of the gripping hydraulic cylinder 632 is simplified.

In particular, in the embodiment, the hinge axis of the opposite ends of each grabbing cylinder 632 is parallel to the hinge axis of the hinge 622. Thus, the grabbing hydraulic cylinder 632 and the grabbing piece 62 can be linked more smoothly, and the grabbing action on the workpiece is more flexible.

In one embodiment, the grasping element 62 further includes a body 626 (see fig. 3) fixedly connected at opposite ends to the hinge portion 622 and the holding portion 624, respectively. The hinge portion 622 and the clamping portion 624 both extend to the same side of the body 626. Thus, the hinge portion 622 and the clamping portion 624 are connected to opposite ends of the body 626 to form a C-shaped structure, which is beneficial to enhancing the structural strength of the grasping member 62 and improving the stability of the grasping mechanism 60. Optionally, the hinge 622, the clip 624, and the body 626 are integrally formed. In this manner, the structural strength of the grasping element 62 is further enhanced.

In particular, in one embodiment, each of the grabbing cylinders 632 is hingedly connected at one end to the body 626 near the hinge 622 and at the opposite end to the middle of the mounting arm 61. Therefore, the grabbing mechanism 60 can grab the workpiece more easily. It should be noted that the middle of the mounting arm 61 is understood to be a range between the longitudinal ends of the mounting arm 61, and is not understood to be located at the middle position in the longitudinal direction of the mounting arm 61.

In particular embodiments, gripper mechanism 60 further includes two gripper fingers 65. The two grasping legs 65 are respectively hinged to the ends of the two holding portions 624 facing each other. The sides of the two gripper fingers 65 facing each other each have a clamping surface 652. Therefore, the workpiece is clamped by the clamping surfaces 652 of the two grabbing palm 65, the stress area is increased, and the stability of clamping the workpiece is enhanced. Further, the clamping surface 652 has anti-slip lines to prevent the workpiece from sliding relative to the grasping palm 65 when clamping the workpiece. It will be appreciated that the gripper fingers 65 will only rotate about their hinge axes under the influence of an external force, so as to prevent the lower gripper members 65 from rotating under the influence of gravity, so that the two gripping surfaces 652 do not correspond to each other, which would affect the gripping of the workpiece.

In the embodiment of the present invention, the grabbing mechanism 60 further includes a rotation driving device 64. The rotary driving device 64 is mounted at one end of the mounting arm 61 far away from the grabbing piece 62 and is used for being connected with the arm support of the tunnel high-altitude operation vehicle so as to drive the mounting arm 61 to rotate around the axis of the mounting arm 61 relative to the arm support of the tunnel high-altitude operation vehicle. In this way, the mounting arm 61 can be rotatably mounted on the arm support of the tunnel overhead working truck around the axis of the mounting arm through the rotary driving device 64, so that the mounting arm 61 can be rotated according to the position of a workpiece to be clamped, the workpiece can be conveniently clamped, and the workpiece can be grabbed.

Alternatively, the swing drive 64 may be a gear-type swing drive, a worm-and-gear type swing drive, or the like, and is not limited thereto.

Based on above-mentioned tunnel high altitude construction car, an embodiment of the utility model provides a still provide a tunnel high altitude construction car, this tunnel high altitude construction car includes as above arbitrary embodiment the mechanism 60 that snatchs.

Referring to fig. 1 and 4 together, in an embodiment of the present invention, the tunnel overhead working truck further includes a traveling chassis 10, a column 20, and an arm support. The arm support comprises a telescopic arm 40, a flying arm 50 and a swing frame 66. The upright 20 is rotatably connected to the running chassis 10 about its axis. One end of the telescopic arm 40 is rotatably connected to the column 20 about a first axis a perpendicular to the axis of the column 20 so that the telescopic arm 40 can swing about the first axis a. One end of the fly arm 50 is rotatably connected to the opposite end of the telescopic arm 40 about a second axis b parallel to the first axis a, so that the fly arm 50 can swing about the second axis b. The swing frame 66 is rotatably connected to the fly arm 50 about a third axis c perpendicular to the second axis b such that the swing frame 66 can swing about the third axis c. The mounting arm 61 is mounted to the swing frame 66.

Thus, the position of the grabbing mechanism 60 can be adjusted to a large extent primarily by controlling the actions of the upright post 20 and the telescopic arm 40 far from the grabbing mechanism 60 (i.e. the upright post 20 rotates around the axis thereof, the telescopic arm 40 rotates around the first axis a, and the telescopic arm 40 extends and retracts), so that the grabbing mechanism 60 moves to a position near the designated station, and then the fly arm 50 close to the grabbing mechanism 60 is controlled to swing around the second axis b and the swing frame 66 swings around the third axis c, so that the position of the grabbing mechanism 60 is accurately adjusted to a small extent, and the grabbing mechanism 60 moves to the designated station. Therefore, the grabbing mechanism 60 has high flexibility in position adjustment, and is beneficial to improving the construction efficiency of high-altitude operation in a tunnel with limited space.

In the embodiment, the tunnel high-altitude operation vehicle further comprises a first rotation driving device 67, and the swing frame 66 is connected to the fly arm 50 through the first rotation driving device 67, so that the swing frame 66 is driven by the first rotation driving device 67 to rotate around the third axis c relative to the fly arm 50. Alternatively, the first rotation driving device 67 may be a driving device that outputs torque, such as a swing cylinder, a hydraulic motor, or the like, and is not limited herein. The driving device for the output torque and the mounting structure thereof are well known in the art and will not be described in detail herein.

In particular embodiments, the pivoting of telescopic arm 40 about first axis a relative to mast 20 and the pivoting of fly arm 50 about second axis b relative to telescopic arm 40 may be actuated by hydraulic cylinders. Namely, a hydraulic cylinder is arranged between the telescopic arm 40 and the upright post 20, and two opposite ends of the hydraulic cylinder are respectively hinged with the telescopic arm 40 and the upright post 20. A hydraulic cylinder is arranged between the flying arm 50 and the telescopic arm 40, and two opposite ends of the hydraulic cylinder are respectively hinged between the flying arm 50 and the telescopic arm 40.

Referring to fig. 5, in another embodiment of the present invention, the telescopic arm 40 is not directly connected to the upright 20, but indirectly connected to the upright 20 through the connecting arm 30. Specifically, one end of the connecting arm 30 is rotatably connected to the upright 20 about a first axis a, and the opposite end is rotatably connected to an end of the telescopic arm 40 remote from the fly arm 50 about a fourth axis d parallel to the first axis a. In this way, the telescopic arm 40 is connected to the upright post 20 through the connecting arm 30, and the arrangement of the connecting arm 30 further improves the flexibility of the position adjustment of the grabbing mechanism 60.

In this embodiment, the rotation of the connecting arm 30 about the first axis a relative to the column 20 and the rotation of the telescopic arm 40 about the fourth axis d relative to the connecting arm 30 are both driven by hydraulic cylinders.

It should be noted that the connecting arm 30 is not essential and in the embodiment shown in figure 1 the tunnel aerial vehicle does not include the connecting arm 30 and the telescopic arm 40 is connected at one end directly to the upright 20 and is rotatable about the first axis a relative to the upright 20. Alternatively, one end of the telescopic arm 40 is hinged to the upright 20, and the axis of the hinged shaft is the first axis a.

Referring to fig. 6, in the embodiment of the present invention, the tunnel aerial cage further includes a mounting frame 72 and a work platform 70 for carrying constructors. The mounting bracket 72 is pivotally connected to the end of the telescopic arm 40 to which the fly jib 50 is connected, about a fifth axis e perpendicular to the axis of the mast 20. The work platform 70 is rotatably connected to the mounting bracket 72 about a sixth axis perpendicular to the fifth axis e. In this manner, work platform 70 is connected to telescopic boom 40 by means of mounting bracket 72, and the position of work platform 70 may be adjusted by controlling mounting bracket 72 to swing about a fifth axis e (i.e., in the up-down direction shown in fig. 6) and work platform 70 to swing about a sixth axis (i.e., in the horizontal plane shown in fig. 6) to facilitate aerial work operations by the constructor. Alternatively, the mounting bracket 72 may be hingedly connected to the end of the telescopic arm 40 to which the fly arm 50 is connected, and the axis of the hinge shaft is the fifth axis e.

In an embodiment, the mounting frame 72 can be driven by a hydraulic cylinder to swing around the fifth axis e relative to the telescopic arm 40, that is, two opposite ends of the hydraulic cylinder are respectively hinged to the mounting frame 72 and the telescopic arm 40, and the telescopic cylinder is extended to drive the mounting frame 72 to swing around the fifth axis e relative to the telescopic arm 40.

In particular embodiments, the work platform 70 may be coupled to the mounting bracket 72 via a second rotational drive 74 such that the work platform 70 may swing about a sixth axis (not shown) relative to the mounting bracket 72. The second rotary drive device 74 may be a drive device that outputs torque, such as a swing cylinder, a hydraulic motor, or the like. The driving device itself and the mounting structure for the output torque are well known in the art and will not be described in detail. In the embodiment shown in fig. 5, the sixth axis is parallel to the vertical direction.

The embodiment of the present invention provides that the traveling chassis 10 can be a crawler chassis, a guide-rail chassis, a wheel chassis, etc., as long as it can be moved, and is not limited herein. Preferably, the traveling chassis 10 may be a crawler-type chassis, so that the tunnel overhead working truck travels flexibly, smoothly and has strong bearing capacity.

Referring to fig. 1 and 4, in an embodiment of the present invention, the tunnel aerial work platform further includes a rotating platform 24, the rotating platform 24 is rotatably mounted on the walking chassis 10 around a vertical axis, and the upright 20 is coaxially mounted on the rotating platform 24 (i.e. the axis of the upright 20 is collinear with the vertical axis of the rotating platform 24) so as to rotate synchronously with the rotating platform 24. In this way, the rotary platform 24 drives the upright post 20 to rotate around the axis of the upright post 20 relative to the walking chassis 10. Alternatively, the mast 20 is bolted to the rotating platform 24.

In the embodiment, an operation room (not shown) is further fixedly installed on the rotary platform 24, and a driver can drive the tunnel overhead working truck or control the spatial attitude of the connecting arm 30, the telescopic arm 40, the flying arm 50 and other components in the operation room, so that the grabbing mechanism 60 can complete the operation.

In the embodiment, the rotary platform 24 is also provided with a balance weight 26 (see fig. 3), which is beneficial to keeping the tunnel high-altitude operation vehicle balanced and improving the stability of the tunnel high-altitude operation vehicle.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. Snatch mechanism for the cantilever crane of tunnel high altitude construction car, its characterized in that snatchs the mechanism and includes:

2. The grasping mechanism according to claim 1, wherein the drive assembly includes two hydraulic cylinders in one-to-one correspondence with the two grasping members;

3. The grasping mechanism according to claim 2, wherein the two grasping members are symmetrically disposed with respect to an axis of the mounting arm; the two hydraulic cylinders are symmetrically arranged relative to the axis of the mounting arm.

4. The grasping mechanism according to claim 2, wherein two of the hydraulic cylinders are coaxially hingedly connected to the mounting arm.

5. The grasping mechanism according to claim 2, wherein the grasping member further comprises a body having opposite ends fixedly connected to the hinge portion and the grip portion, respectively;

6. The grasping mechanism according to claim 5, wherein one end of the hydraulic cylinder is hingedly connected to an end of the body proximate the hinge portion and an opposite end is hingedly connected to a middle portion of the mounting arm.

7. The grasping mechanism according to claim 5, further comprising two grasping legs, each of which is hingedly connected to an end of each of the two holding portions facing each other;

8. The grasping mechanism according to claim 2, wherein the hinge axes of the opposite ends of the hydraulic cylinder are parallel to the hinge axis of the hinge portion.

9. The gripping mechanism of claim 1, further comprising a rotary drive mounted to an end of the mounting arm remote from the gripping member for connection to an arm support of the tunnel aerial vehicle to drive the mounting arm to rotate about an axis of the mounting arm relative to the arm support of the tunnel aerial vehicle.

10. Tunnel aerial vehicle, characterized in that it comprises a gripping mechanism according to any one of claims 1 to 9.