Loading device and heading machine

Abstract

The utility model discloses a loading device and a heading machine, the loading device is used for being arranged at the front part of the heading machine and arranged below a cutting device of the heading machine, the loading device comprises a shovel plate used as a structural carrier, the rear part of the shovel plate is used for being hinged to the front part of the heading machine, and mounting structures are symmetrically distributed on the shovel plate; the star wheel assembly is mounted in the mounting structure of the shovel plate and is used for gathering cut materials; the conveying mechanism is arranged in the middle of the shovel plate, is connected with a scraper device of the heading machine and is used for conveying the gathered materials to the scraper device; the lifting mechanism is connected to the shovel plate and the heading machine and used for driving the shovel plate to rotate relative to the heading machine.

Description

Technical Field

[0001] The utility model relates to the technical field of tunnel boring machines, in particular to a loading device and a tunnel boring machine. Background Art

[0002] The loading device of a traditional tunnel boring machine is mainly composed of left and right shovel plates, star wheels, driven wheels, lifting cylinders, extension cylinders and drive devices. It is an important component of the tunnel boring machine. One of its functions is to transport materials. The received materials are transferred to the scraper chute through the shovel plate. Secondly, when the tunnel boring machine is stuck in the mud and cannot move or when the crawler is being repaired, the lifting cylinder is extended to drop the shovel plate to the ground and contact the bottom plate of the tunnel. The shovel plate lifting cylinder is continued to be lifted. The tunnel boring machine will be lifted to a certain height under the action of the shovel plate and the rear support, so that materials such as rail sleepers can be cushioned under the crawler walking part to create conditions for the normal movement of the tunnel boring machine, or the crawler is suspended in the air for easy maintenance.

[0003] At present, there are many water diversion tunnels in the southern region of China, which have the characteristics of small cross-sectional size, short single-tunnel construction mileage, and mainly soft surrounding rock and mudstone. Traditional large-scale tunnel boring machines are limited by their external size and overall machine cost and cannot meet the equipment requirements for water diversion tunnel construction. Utility Model Content

[0004] The utility model provides a loading device and a tunnel boring machine, so as to solve the technical problem that the existing tunnel boring machine cannot meet the construction requirements of a water diversion tunnel due to size limitation.

[0005] The technical solution adopted by the utility model is as follows:

[0006] A loading device is used to be arranged at the front of a roadheader and arranged below a cutting device of the roadheader, the loading device comprising:

[0007] A shovel plate is used as a structural carrier, the rear portion of the shovel plate is used to be hinged to the front portion of the tunnel boring machine, and the shovel plate is symmetrically provided with mounting structures;

[0008] A star wheel assembly is installed in the installation structure of the shovel plate and is used to gather the cut materials;

[0009] A conveying mechanism, arranged in the middle of the shovel plate and connected to the scraper device of the tunneling machine, for conveying the gathered materials to the scraper device;

[0010] The lifting mechanism is respectively connected to the shovel plate and the tunnel boring machine, and is used for driving the shovel plate to rotate relative to the tunnel boring machine.

[0011] As a further improvement of the above technical solution, the star wheel assembly includes a mounting seat arranged on the shovel plate, a star wheel base member arranged on the mounting seat, rake claws arranged on the star wheel base member and evenly distributed circumferentially, and a driving mechanism arranged on the mounting seat for driving the star wheel base member to rotate.

[0012] As a further improvement of the above technical solution, the mounting structure includes a sunken structure arranged on the shovel plate for accommodating the driving mechanism, the first surface of the mounting seat is flush with the surface of the shovel plate, the star wheel base is arranged on the first surface of the mounting seat, and the driving mechanism is arranged on the second surface of the mounting seat.

[0013] As a further improvement of the above technical solution, a baffle is provided on one side edge of the surface of the rake claw to increase the contact area between the rake claw and the material.

[0014] As a further improvement of the above technical solution, the conveying mechanism includes a chute arranged in the middle of the shovel plate.

[0015] As a further improvement of the above technical solution, the conveying mechanism also includes a driven wheel assembly transmission-connected to the driving mechanism and a scraper chain connected to the driven wheel assembly, and slots for installing the driven wheel assembly are provided on both sides of the chute.

[0016] As a further improvement of the above technical solution, the surface of the chute is provided with a wear-resistant layer, or the bottom plate of the chute is a wear-resistant plate.

[0017] As a further improvement of the above technical solution, the rear part of the shovel plate is respectively provided with a first hinge point for being hinged to the tunnel boring machine and a second hinge point for being hinged to the output end of the lifting mechanism.

[0018] As a further improvement of the above technical solution, a hose bracket is provided on one side of the rear portion of the shovel plate or on both sides of the rear portion of the shovel plate.

[0019] On the other hand, a tunnel boring machine is also provided, which is applied with any of the loading devices described above.

[0020] The utility model has the following beneficial effects:

[0021] The loading device is arranged at the front of the tunnel boring machine and located at the lower part of the cutting device. The lifting mechanism can adjust the angle of the shovel plate and thus adjust the height of its front part relative to the tunnel ground. When the shovel plate is close to the ground, the tunnel boring machine can move forward to clean the floating coal on the bottom plate, and the cleaning effect is better. When the shovel plate is lifted, the overall passability of the equipment can be improved and maintenance is convenient, avoiding the need to set a supporting structure at the front of the tunnel boring machine and reducing the size of the equipment. The star wheel assembly gathers the cut materials and transfers them to the conveying mechanism, and the conveying mechanism transfers the materials. The shovel plate An installation structure is arranged on the top to install the star wheel assembly, so that the loading device structure is more compact and the space occupancy is reduced to adapt to the construction of small water diversion tunnels; on the other hand, when the tunnel boring machine is stuck in the mud and cannot move or the track of the tunnel boring machine needs to be tightened or repaired, the lifting cylinder is extended to drop the shovel to the ground and contact the bottom plate of the tunnel, and the shovel lifting cylinder is continued to be lifted. The tunnel boring machine will be lifted to a certain height under the action of the shovel and the rear support, so as to inspect the track or place support pads such as sleepers under the track so as to pass through muddy sections and improve adaptability.

[0022] In addition to the above-described purposes, features and advantages, the present invention has other purposes, features and advantages. The present invention will be further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The drawings constituting a part of this application are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0024] Figure 1 It is a structural schematic diagram of a preferred embodiment of the utility model;

[0025] Figure 2 This is a front view of a shovel board of a preferred embodiment of the utility model;

[0026] Figure 3 This is a top view of a shovel plate of a preferred embodiment of the utility model;

[0027] Figure 4 This is a front view of the star wheel assembly of the preferred embodiment of the utility model;

[0028] Figure 5 This is a schematic diagram of the structure of the star wheel assembly of the preferred embodiment of the utility model;

[0029] 1. Shovel board 11, sinking structure 12, first hinge point 13, second hinge point 2, star wheel assembly 21, mounting seat 22, star wheel base 23, rake claw 231, baffle 24, drive mechanism 3, conveying mechanism 31, chute 32, scraper chain 33, guard 4, lifting mechanism 5, hose bracket. DETAILED DESCRIPTION

[0030] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present utility model will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0031] Reference Figures 1 to 5 The preferred embodiment of the utility model provides a loading device, which is arranged at the front of the tunnel boring machine and arranged below the cutting device of the tunnel boring machine, and the loading device includes:

[0032] The shovel plate 1 is used as a structural carrier, the rear part of the shovel plate 1 is used to be hinged to the front part of the tunnel boring machine, and the shovel plate 1 is symmetrically provided with mounting structures;

[0033] The star wheel assembly 2 is installed in the installation structure of the shovel plate 1 and is used to gather the cut materials;

[0034] The conveying mechanism 3 is arranged in the middle of the shovel plate 1 and connected to the scraper device of the tunnel boring machine, and is used to convey the gathered materials to the scraper device;

[0035] The lifting mechanism 4 is connected to the shovel plate 1 and the tunneling machine respectively, and is used to drive the shovel plate 1 to rotate relative to the tunneling machine.

[0036] It can be understood that the loading device is arranged at the front of the tunnel boring machine and is located at the bottom of the cutting device. The lifting mechanism 4 can adjust the angle of the shovel plate 1 and thus adjust the height of its front relative to the ground of the tunnel. When the shovel plate 1 is close to the ground, the tunnel boring machine can move forward to clean the floating coal on the bottom plate, and the cleaning effect is better. When the shovel plate 1 is lifted, the overall passability of the equipment can be improved and maintenance is convenient, avoiding the need to set a support structure at the front of the tunnel boring machine and reducing the size of the equipment. The cut materials are gathered through the star wheel assembly 2 and transferred to the conveying mechanism 3, and then transferred by the conveying mechanism 3. Materials, a mounting structure is set on the shovel plate 1 to install the star wheel assembly 2, so that the loading device structure is more compact, reducing the space occupancy to adapt to the construction of small water diversion tunnels; on the other hand, when the tunnel boring machine is stuck in the mud and cannot move or the tunnel boring machine crawler needs to be tightened or repaired, the lifting cylinder is extended to extend the shovel plate 1 to the ground and contact the tunnel bottom plate, and the shovel plate 1 lifting cylinder is continued to be lifted. The tunnel boring machine will be lifted to a certain height under the action of the shovel plate 1 and the rear support, so as to inspect the crawler or place support pads such as sleepers under the crawler so as to pass through muddy sections and improve adaptability.

[0037] In this embodiment, the star wheel assembly 2 includes a mounting seat 21 disposed on the shovel plate 1, a star wheel base member 22 disposed on the mounting seat 21, rake claws 23 disposed on the star wheel base member 22 and evenly distributed in the circumferential direction, and a driving mechanism 24 disposed on the mounting seat 21 for driving the star wheel base member 22 to rotate. The driving mechanism 24 drives the star wheel base member 22 to rotate, drives the rake claws 23 to rotate, and then gathers the materials between the two star wheel assemblies 2;

[0038] Specifically, the installation structure includes a sunken structure 11 arranged on the shovel board 1 for accommodating the driving mechanism 24. The first surface of the mounting seat 21 is flush with the surface of the shovel board 1, the star wheel base 22 is arranged on the first surface of the mounting seat 21, and the driving mechanism 24 is arranged on the second surface of the mounting seat 21; the driving mechanism 24 is integratedly installed in the shovel board 1, and the mounting seat 21 after installation is flush with the shovel board 1. It has a compact structure and a protective function, and is more suitable for the construction of small water diversion tunnels.

[0039] In this embodiment, a baffle 231 is provided on one side edge of the surface of the claw 23 to increase the contact area between the claw 23 and the material, thereby improving the material gathering efficiency.

[0040] In this embodiment, the conveying mechanism 3 includes a chute 31 arranged in the middle of the shovel plate 1, and the star wheel assembly 2 is arranged on both sides of the chute 31. When the rake claw 23 moves, it passes above the front part of the chute 31. The overall structure is compact, which improves the material transportation efficiency and reduces the space occupation.

[0041] Furthermore, the conveying mechanism 3 also includes a driven wheel assembly that is transmission-connected to the driving mechanism 24 and a scraper chain 32 that is connected to the driven wheel assembly. Slots for installing the driven wheel assembly are provided on both sides of the chute 31, and a guard 33 is provided on the driven wheel for protection. The driving mechanism 24 can simultaneously drive the star wheel base 22 to rotate and drive the scraper chain 32 to transport materials, making the overall structure of the device more compact, reducing space occupancy, and adapting to the construction of small water diversion tunnels.

[0042] In this embodiment, the surface of the chute 31 is provided with a wear-resistant layer, or the bottom plate of the chute 31 is a wear-resistant plate, so as to reduce the wear of the part in contact with the material and increase the service life.

[0043] In this embodiment, the rear part of the shovel board 1 is respectively provided with a first hinge point 12 for hinged connection with the tunnel boring machine and a second hinge point 13 for hinged connection with the output end of the lifting mechanism 4. The lifting mechanism 4 can drive the shovel board 1 to rotate based on the first hinge point 12; it can be understood that the lifting mechanism 4 is a hydraulic cylinder.

[0044] In this embodiment, a hose bracket 5 is provided on one side of the rear of the shovel board 1 or on both sides of the rear of the shovel board 1, which is detachably connected by bolts, centrally arranges the hydraulic oil pipes required for the power of the shovel board 1 and plays a protective role.

[0045] On the other hand, this embodiment also provides a tunnel boring machine, which is applied with the above-mentioned loading device.

[0046] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A loading device, characterized in that: Used to be arranged at the front of the tunnel boring machine and arranged below the cutting device of the tunnel boring machine, the loading device comprises: A shovel plate (1) is used as a structural carrier, the rear portion of the shovel plate (1) is used to be hinged to the front portion of the tunnel boring machine, and the shovel plate (1) is provided with mounting structures symmetrically distributed; The star wheel assembly (2) is installed in the installation structure of the shovel plate (1) and is used to gather the cut materials: A conveying mechanism (3) is arranged in the middle of the shovel plate (1) and is connected to the scraper device of the tunneling machine, and is used to convey the gathered materials to the scraper device; The lifting mechanism (4) is respectively connected to the shovel plate (1) and the tunneling machine, and is used to drive the shovel plate (1) to rotate relative to the tunneling machine.

2. The loading device according to claim 1, characterized in that: The star wheel assembly (2) comprises a mounting seat (21) arranged on the shovel plate (1), a star wheel base member (22) arranged on the mounting seat (21), rake claws (23) evenly distributed in the circumferential direction and arranged on the star wheel base member (22), and a driving mechanism (24) arranged on the mounting seat (21) for driving the star wheel base member (22) to rotate.

3. The loading device according to claim 2, characterized in that: The mounting structure comprises a sinking structure (11) arranged on the shovel plate (1) for accommodating the drive mechanism (24); the first surface of the mounting seat (21) is flush with the surface of the shovel plate (1); the star wheel base member (22) is arranged on the first surface of the mounting seat (21); and the drive mechanism (24) is arranged on the second surface of the mounting seat (21).

4. The loading device according to claim 2, characterized in that: A baffle (231) is provided on one side edge of the surface of the rake claw (23) to increase the contact area between the rake claw (23) and the material.

5. The loading device according to claim 2, characterized in that: The conveying mechanism (3) comprises a chute (31) arranged in the middle of the shovel plate (1).

6. The loading device according to claim 5, characterized in that: The conveying mechanism (3) further comprises a driven wheel assembly drivingly connected to the driving mechanism (24) and a scraper chain (32) connected to the driven wheel assembly, and slots for mounting the driven wheel assembly are provided on both sides of the chute (31).

7. The loading device according to claim 5, characterized in that: The surface of the chute (31) is provided with a wear-resistant layer, or the bottom plate of the chute (31) is a wear-resistant plate.

8. The loading device according to claim 1, characterized in that: The rear part of the shovel plate (1) is respectively provided with a first hinge point for being hinged to the tunnel boring machine and a second hinge point for being hinged to the output end of the lifting mechanism (4).

9. The loading device according to claim 1, characterized in that: A hose bracket (5) is provided on one side of the rear portion of the shovel plate (1) or on both sides of the rear portion of the shovel plate (1).

10. A tunnel boring machine, characterized in that: The loading device according to any one of claims 1 to 9 is used.

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