External spraying device for heading machine

Abstract

The utility model discloses an external spraying device for a heading machine. The external spraying device comprises a fixed plate and a circular spraying assembly arranged on the fixed plate, the spraying assembly comprises an upper spraying module and a lower spraying module, the upper spraying module and the lower spraying module are both semicircular, the upper spraying module and the lower spraying module are symmetrically arranged, and each of the upper spraying module and the lower spraying module comprises a semicircular bottom plate piece and a plurality of spraying heads arranged on the bottom plate piece; and the nozzles are distributed in a semicircle shape along the bottom plate part and are arranged towards the outer side of the bottom plate part. The upper spraying module and the lower spraying module are symmetrically arranged to form a hoop structure, so that the spraying device can be conveniently mounted outside the heading machine, and the problems of leakage and small water yield caused by internal mounting of the heading machine in a traditional process are effectively solved; the purposes of optimizing the structure of the spraying device of the heading machine, inhibiting dust generated in the using process of the heading machine, facilitating installation of the spraying device and improving the production efficiency are achieved.

Description

Technical Field

[0001] The utility model relates to supporting equipment for a tunnel boring machine, in particular to an external spray device for a tunnel boring machine. Background Art

[0002] In the prior art, a roadheader is a large-scale engineering machine used for tunnel excavation. At present, roadheaders are mostly used in coal mining and excavation working tunnels in mines to improve efficiency. When the roadheader is working, a large amount of dust will be generated. Since the front working surface is closed, the dust will spread to the rear of the roadheader. If a large amount of water mist is sprayed out from the front excavation cutter head, it will have a great inhibitory effect on the generation of dust. Due to structural limitations, the internal spray device installed on the roadheader at the factory has the disadvantages of leakage and small water output.

[0003] How to effectively solve the above technical problems is a technical problem that needs to be solved urgently at this stage.

[0004] The information disclosed in this background technology section is only intended to deepen the understanding of the overall background technology of the present invention, and should not be regarded as acknowledging or suggesting in any form that the information constitutes the prior art already known to those skilled in the art. Utility Model Content

[0005] In order to solve the above technical problems, the utility model proposes an external spray device for a tunnel boring machine, so as to optimize the structure of the tunnel boring machine spray device, suppress the dust generated during the use of the tunnel boring machine, facilitate the installation of the spray device and improve production efficiency.

[0006] In order to achieve the above object, the technical solution of the utility model is as follows:

[0007] An external spray device for a tunnel boring machine comprises a fixing plate and a circular spray assembly arranged on the fixing plate;

[0008] The two ends of the fixing plate are provided with fixing ears;

[0009] The spray assembly includes an upper spray module and a lower spray module, the upper spray module and the lower spray module are both semicircular, and the upper spray module and the lower spray module are symmetrically arranged, the upper spray module and the lower spray module both include a semicircular bottom plate and a plurality of spray heads arranged on the bottom plate, and the spray heads are distributed in a semicircular shape along the bottom plate, and the spray heads are arranged toward the outside of the bottom plate;

[0010] One end of the bottom plate is provided with a through hole, and the other end is provided with a locking seat, and the through hole is provided with a matching connecting bolt, and the two locking seats are detachably connected by the locking bolt.

[0011] The utility model symmetrically arranges the upper spray module and the lower spray module to form a hoop structure, which facilitates the installation of the spray device on the outside of the tunnel boring machine, effectively solving the problems of leakage and small water output caused by the internal installation of the tunnel boring machine in the traditional process, and achieves the purpose of optimizing the structure of the tunnel boring machine spray device, suppressing the dust generated during the use of the tunnel boring machine, facilitating the installation of the spray device and improving production efficiency.

[0012] Further preferably, the bottom plate comprises a front mounting plate for mounting a nozzle, a back plate for welding a quick-connect plug, and a middle partition plate arranged between the front mounting plate and the back plate, wherein a guide groove is provided on the middle partition plate, and the guide groove is connected to the nozzle and the quick-connect plug;

[0013] The front mounting plate, the middle partition plate and the back plate are all steel plates and are welded together; the front mounting plate and the back plate form a seal for the guide groove;

[0014] The quick-connect plug is connected to an external high-pressure water pipe.

[0015] Further preferably, the front mounting plate is provided with a nozzle protective cover for protecting the nozzle.

[0016] The utility model has the following advantages:

[0017] 1. The utility model symmetrically arranges the upper spray module and the lower spray module to form a hoop structure, which facilitates the installation of the spray device on the outside of the tunnel boring machine, effectively solves the problems of leakage and small water output caused by the internal installation of the tunnel boring machine in the traditional process, and achieves the purpose of optimizing the structure of the tunnel boring machine spray device, suppressing the dust generated during the use of the tunnel boring machine, facilitating the installation of the spray device and improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below.

[0019] Figure 1 It is a front view schematic diagram of an external spray device for a tunnel boring machine disclosed in an embodiment of the utility model;

[0020] Figure 2 It is a rear view schematic diagram of an external spray device for a tunnel boring machine disclosed in an embodiment of the utility model;

[0021] Figure 3 It is a structural schematic diagram of a guide groove in an external spray device for a tunneling machine disclosed in an embodiment of the utility model;

[0022] The numbers and letters in the figure represent the corresponding component names:

[0023] 1.Fixed plate 11.Fixed ear 211.Bottom plate 2111.Front mounting plate 2112.Back plate

[0024] 2113. Middle partition 2114. Guide groove 212. Sprinkler 213. Locking seat 214. Connecting bolt

[0025] 215. Locking bolt 216. Nozzle protection cover 3. Quick connect plug. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0027] The utility model provides an external spray device for a tunnel boring machine. Its working principle is to facilitate the installation of the spray device on the outside of the tunnel boring machine by symmetrically arranging the upper spray module and the lower spray module to form a hoop structure, effectively solving the problems of leakage and small water output caused by the internal installation of the tunnel boring machine in the traditional process, so as to achieve the purpose of optimizing the structure of the tunnel boring machine spray device, suppressing the dust generated during the use of the tunnel boring machine, facilitating the installation of the spray device and improving production efficiency.

[0028] The present invention is further described in detail below in conjunction with embodiments and specific implementation methods.

[0029] like Figure 1-Figure 3 As shown, an external spray device for a tunnel boring machine comprises a fixing plate 1 and a circular spray assembly arranged on the fixing plate;

[0030] The two ends of the fixing plate are provided with fixing ears 11;

[0031] The spray assembly includes an upper spray module and a lower spray module, both of which are semicircular and symmetrically arranged. Both of the upper spray module and the lower spray module include a semicircular bottom plate 211 and a plurality of nozzles 212 arranged on the bottom plate, and the nozzles are distributed in a semicircular shape along the bottom plate. The nozzles are arranged toward the outside of the bottom plate (the specific direction of the nozzles can be arranged outward in the circular shape of the ring formed by the upper and lower spray modules). By arranging the nozzles at an angle (they can also be replaced with nozzles with an inclination), the spray range sprayed by the nozzles can surround the tunneling head.

[0032] One end of the bottom plate is provided with a through hole (not shown), and the other end is provided with a locking seat 213, and the through hole is provided with a matching connecting bolt 214, and the two locking seats are detachably connected by a locking bolt 215.

[0033] Specifically, the bottom plate comprises a front mounting plate 2111 for mounting a nozzle, a back plate 2112 for welding a quick-connect plug 3, and a middle partition plate 2113 disposed between the front mounting plate and the back plate, wherein a guide groove 2114 is disposed on the middle partition plate, and the guide groove is connected to the nozzle and the quick-connect plug;

[0034] The front mounting plate, the middle partition plate and the back plate are all made of steel plates and welded together, making the overall structure more solid; the front mounting plate and the back plate form a seal for the guide groove;

[0035] The quick-connect plug is connected to an external high-pressure water pipe.

[0036] The front mounting plate is provided with a nozzle protection cover 216 for protecting the nozzle.

[0037] The specific use steps of the utility model are as follows: Figure 1-Figure 3 As shown, in actual use, the spray assembly is installed on the cutter head of the tunnel boring machine through the locking seat 213, the connecting bolt 214 and the locking bolt 215, and the stability of the spray assembly after installation is further achieved through the fixing plate and the fixing ear 11 set on the fixing plate, so that the overall structure has high strength and can adapt to the violent impact and strong vibration during the operation of the tunnel boring machine; and the installation is simple and the clamp installation form is adopted to adapt to different tunnel boring machine models. Due to the clamp form, its structure is simple, the reliability is high, and the internal cleaning is convenient.

[0038] During cleaning, the high-pressure pump is connected through the quick-connect plug 3. At this time, after passing through the guide groove and entering the nozzle, the nozzle is sprayed out in the form of a weapon, which can effectively suppress the dust generated by the tunnel boring machine cutter head and prevent the dust from spreading, thereby improving production efficiency.

[0039] Through the above method, the utility model provides an external spray device for a tunnel boring machine, which facilitates the installation of the spray device on the outside of the tunnel boring machine by symmetrically arranging the upper spray module and the lower spray module to form a hoop structure, and effectively solves the problems of leakage and small water output caused by the internal installation of the tunnel boring machine in the traditional process, thereby achieving the purpose of optimizing the structure of the tunnel boring machine spray device, suppressing the dust generated during the use of the tunnel boring machine, facilitating the installation of the spray device and improving production efficiency.

[0040] The above is only a preferred embodiment of an external spray device for a tunnel boring machine disclosed in the utility model. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the creative concept of the utility model, which all belong to the protection scope of the utility model.

Claims

1. An external spray device for a tunnel boring machine, characterized in that: It comprises a fixed plate and a circular spray assembly arranged on the fixed plate; The two ends of the fixing plate are provided with fixing ears; The spray assembly includes an upper spray module and a lower spray module, the upper spray module and the lower spray module are both semicircular, and the upper spray module and the lower spray module are symmetrically arranged, the upper spray module and the lower spray module both include a semicircular bottom plate and a plurality of spray heads arranged on the bottom plate, and the spray heads are distributed in a semicircular shape along the bottom plate, and the spray heads are arranged toward the outside of the bottom plate; One end of the bottom plate is provided with a through hole, and the other end is provided with a locking seat, and the through hole is provided with a matching connecting bolt, and the two locking seats are detachably connected by the locking bolt.

2. The external spray device for a tunnel boring machine according to claim 1, characterized in that: The bottom plate comprises a front mounting plate for mounting a nozzle, a back plate for welding a quick-connect plug, and a middle partition plate arranged between the front mounting plate and the back plate, wherein the middle partition plate is provided with a guide groove, and the guide groove is connected with the nozzle and the quick-connect plug; The front mounting plate, the middle partition plate and the back plate are all steel plates and are welded together; the front mounting plate and the back plate form a seal for the guide groove; The quick-connect plug is connected to an external high-pressure water pipe.

3. The external spray device for a tunnel boring machine according to claim 2, characterized in that: The front mounting plate is provided with a nozzle protection cover for protecting the nozzle.

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