CN219176349U - Wet spraying equipment for tunnel - Google Patents
Wet spraying equipment for tunnel Download PDFInfo
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- CN219176349U CN219176349U CN202320592533.8U CN202320592533U CN219176349U CN 219176349 U CN219176349 U CN 219176349U CN 202320592533 U CN202320592533 U CN 202320592533U CN 219176349 U CN219176349 U CN 219176349U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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Abstract
The utility model relates to wet spraying equipment for a tunnel, which comprises a travelling trolley, wherein a push-out type operation unit is arranged at the front end of the travelling trolley, an injection unit is arranged in the push-out type operation unit, a pumping unit and an air compressor are arranged in the injection unit, the pumping unit is connected to a charging bucket, and the push-out type operation unit, the pumping unit and the air compressor are arranged in a matched mode; and a sensing mechanism is arranged in cooperation with the push-out type operation unit. The whole equipment is transported and supported by the walking trolley, so that the stability of the whole equipment is ensured; the push-out type operation unit is used for replacing a manipulator in the prior art, the single injection range is large in the injection process, the controllability is high, the injection strength is stable, and the injection surface is completely covered; the spraying surface is relatively smooth, the rebound rate is in a controllable range, and only simple treatment is needed after wet spraying is finished, so that the working efficiency is high.
Description
Technical Field
The utility model belongs to the technical field of drilling of soil layers or rocks, and particularly relates to wet spraying equipment for tunnels.
Background
Wet spraying means that cement, sand, stone and water are mixed and stirred into concrete in a certain ratio, and the stirred concrete is pumped to a nozzle through a delivery pipe, mixed with a liquid quick setting mixture, and injected onto a surface to be sprayed by energy supplemented by pressurized air.
Along with the development of engineering construction, the technical construction method of construction is continuously innovated, in the development of tunnel engineering, the tunnel construction technology has unprecedented development, the shotcrete construction method gradually replaces the original concrete construction mode, the shotcrete construction method has advantages of high speed, timely support, good support quality, high strength and the like, the shotcrete has good compactness and waterproof performance, the construction flexibility is high, and the design requirement and the quality requirement of engineering construction are met. Meanwhile, in tunnel engineering operation, the wet spraying method has low comprehensive cost, good social benefit and low environmental pollution, can greatly improve tunnel construction environment and shortens the operation period of sprayed concrete.
In the prior art, wet spraying manipulators are quite common to realize primary lining concrete construction, upward and downward spraying operations are completed, the nozzles at the end parts of the manipulators are required to be perpendicular to a rock surface as much as possible during the operations, the distance between the nozzles and a surface to be constructed is controlled, under the condition of large space limitation, the manipulator is quite easy to have the conditions of unstable spraying strength, incomplete spraying surface coverage, shaking and the like in the spraying process, and further the problems of uneven spraying surface, high rebound rate and the like are easy to occur in the primary supporting stage of a tunnel, the rework rate is high, and the working efficiency is low.
Disclosure of Invention
The utility model aims to overcome the defects in the prior art and provides wet spraying equipment for tunnels.
In order to achieve the technical aim, the utility model adopts the following technical scheme that the wet spraying equipment for the tunnel comprises a walking trolley, wherein a push-out type operation unit is arranged at the front end of the walking trolley, an injection unit is arranged in the push-out type operation unit, a pumping unit and an air compressor are arranged in the injection unit, the pumping unit is connected to a charging bucket, and the push-out type operation unit, the pumping unit and the air compressor are arranged in a matched manner; and a sensing mechanism is arranged in cooperation with the push-out type operation unit.
Preferably, the push-out type operation unit comprises a sleeve hole arranged at the top of the front end of the walking trolley, a push rod is arranged in the sleeve hole in a penetrating manner, a rotating mechanism is arranged in cooperation with the push rod, and a push-out mechanism is arranged in cooperation with the push rod and the rotating mechanism; one end of the extension rod is arranged at the front end part of the push rod, and a jacking mechanism is arranged in cooperation with the extension rod; the other end of the extension rod is provided with a detachable arch support, and a spraying unit is arranged in cooperation with the arch support; the sensing mechanism comprises a distance sensor matched with the arched bracket.
Preferably, the rotating mechanism comprises a stepping motor arranged on the walking trolley.
Preferably, the pushing mechanism comprises a pushing cylinder arranged on the walking trolley, and the pushing cylinder is matched with the air compressor.
Preferably, the sensing mechanism includes a travel sensor disposed in cooperation with the push-out cylinder.
Preferably, the jacking mechanism comprises a telescopic cylinder matched with the front end part of the push rod and the end part of the extension rod, and the telescopic cylinder is matched with the air compressor.
Preferably, the spraying unit comprises a nozzle arranged on the arch-shaped bracket, any nozzle is connected to the pumping unit through a spray pipe, any nozzle is connected to the air compressor through an air pipe, and a proportional valve is arranged between the nozzle and the pumping unit.
Preferably, the sensing means comprises a pressure sensor arranged in cooperation with the trachea.
Preferably, the walking trolley comprises a portal, a plurality of platforms are arranged in cooperation with the portal, and a walking wheel is arranged at the bottom of the portal.
Preferably, an auxiliary lifting mechanism is arranged at the bottom of the portal frame.
The utility model provides wet spraying equipment for a tunnel, which comprises a travelling trolley, wherein a push-out type operation unit is arranged at the front end of the travelling trolley, an injection unit is arranged in the push-out type operation unit, a pumping unit and an air compressor are arranged in the injection unit, the pumping unit is connected to a charging bucket, and the push-out type operation unit, the pumping unit and the air compressor are arranged in a matched mode; and a sensing mechanism is arranged in cooperation with the push-out type operation unit.
The utility model has the beneficial effects that:
(1) The whole equipment is transported and supported by a traveling trolley, so that the stability of the whole equipment is ensured;
(2) The push-out type operation unit is used for replacing a manipulator in the prior art, the single injection range is large in the injection process, the controllability is high, the injection strength is stable, and the injection surface is completely covered;
(3) The spraying surface is relatively smooth, the rebound rate is in a controllable range, and only simple treatment is needed after wet spraying is finished, so that the working efficiency is high.
Drawings
FIG. 1 is a schematic diagram of a front view structure of the present utility model;
FIG. 2 is a schematic side view of the present utility model;
FIG. 3 is a schematic view of the structure of the trepanning part of the present utility model;
fig. 4 is a schematic structural diagram of the ejector unit, the pumping unit and the air compressor according to the present utility model, wherein the broken line is signal transmission.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
The utility model relates to wet spraying equipment for a tunnel, which comprises a traveling trolley 1, wherein a push-out type operation unit is arranged at the front end of the traveling trolley 1, an injection unit is arranged in the push-out type operation unit, a pumping unit and an air compressor are arranged in the injection unit, the pumping unit is connected to a charging bucket, and the push-out type operation unit, the pumping unit and the air compressor are arranged in a matched manner; and a sensing mechanism is arranged in cooperation with the push-out type operation unit.
The walking trolley 1 comprises a portal 11, a plurality of platforms 12 are arranged in cooperation with the portal 11, and a walking wheel 13 is arranged at the bottom of the portal 11.
In the utility model, the travelling trolley 1 is taken as the integral bearing of equipment, in the practical application process, the travelling trolley 1 takes the portal 11 as an integral moving member, the bottom of the portal is matched with the travelling wheel 13, and the travelling of the travelling wheel 13 is controlled by a control end; in this embodiment, the travelling of the travelling wheel 13 is a step, that is, under the preset control of the control end, the travelling distance of each time can be consistent, so as to ensure the uniformity of spraying.
In the utility model, a push-out type operation unit is arranged at the front end of a traveling trolley 1, wherein the front is the traveling direction of the traveling trolley 1 during operation; the pushing-out type operation unit is used for pushing-out and withdrawing the injection unit, the occupied area of equipment is small in a non-working stage, a certain distance can be kept between the injection unit and the portal frame 11 of the walking trolley 1 in a working stage, and the walking trolley 1 and surrounding staff are effectively protected.
According to the utility model, the pumping unit and the air compressor are arranged in cooperation with the injection unit, so that wet injection materials are pumped from the charging bucket by the pumping unit, and the air compressor is used for assisting in injection and adjusting the injection working condition; in the practical application process, the multistage pumping unit can be arranged based on the practical working state, so that the materials are ensured to be pumped to the injection unit smoothly.
In the utility model, the matched push-out type operation unit is provided with a sensing mechanism, and sensing signals fed back by the sensing mechanism are sent to the control end, so that the matched operation among the push-out type operation unit, the injection unit, the pumping unit and the air compressor is completed; the control end is set by a person skilled in the art, and can be set by the person skilled in the art according to the requirements and the actual operation completed by the device.
The pushing-out type operation unit comprises a sleeve hole 4 arranged at the top of the front end of the traveling trolley 1, a push rod 5 is arranged in the sleeve hole 4 in a penetrating manner, a rotating mechanism is arranged in cooperation with the push rod 5, and a pushing-out mechanism is arranged in cooperation with the push rod 5 and the rotating mechanism; one end of the extension rod 6 is arranged at the front end part of the push rod 5, and a jacking mechanism is arranged in cooperation with the extension rod 6; the other end of the extension rod 6 is provided with a detachable arch support 7, and a spraying unit is arranged in cooperation with the arch support 7; the sensing means comprise a distance sensor (not shown) arranged in cooperation with the arched bracket 7.
The rotating mechanism comprises a stepping motor 8 arranged on the walking trolley 1.
The pushing mechanism comprises a pushing cylinder 9 arranged on the traveling trolley 1, and the pushing cylinder 9 is matched with the air compressor.
The sensing mechanism includes a stroke sensor (not shown) provided in cooperation with the push-out cylinder 9.
The jacking mechanism comprises a telescopic cylinder 10 which is matched with the front end part of the push rod 5 and the end part of the extension rod 6, and the telescopic cylinder 10 is matched with the air compressor.
In the utility model, a sleeve hole 4 is arranged at the top of the front end of a traveling trolley 1, a push rod 5 is arranged in the sleeve hole 4 in a penetrating way, the push rod 5 can move back and forth in the sleeve hole 4, and the push rod 5 is matched with the extension and retraction of an extension rod 6 at the front end of the push rod 5; the sleeve hole 4 is arranged in a double-layer manner, the wall of the inner layer is provided with a sliding groove 41, the outer part of the push rod 5 is matched with the sliding groove 41 to be provided with a sliding block (not shown in the figure), meanwhile, a bearing 42 is matched between the inner layer and the outer layer of the sleeve hole 4, during the rotation of the rotating mechanism, the inner layer and the outer layer of the sleeve hole 4 are in fact in relative motion, and during the pushing or withdrawing process of the pushing mechanism, the inner layer of the sleeve hole 4 and the push rod 5 are in relative motion; in order to facilitate the overall wet spraying control, the stepping motor 8 is used as a rotating mechanism, the stepping motor 8 can control the push rod 5 to rotate only by a determined angle each time, meanwhile, the pushing cylinder 9 is used as a pushing mechanism, and a stroke sensor is arranged in cooperation with the pushing cylinder 9 to ensure that the pushing distance is fixed.
In the utility model, the front end part of the push rod 5 is provided with the extension rod 6, and the push rod 5 and the push rod are matched with each other to form a jacking mechanism, namely the push rod can extend and retract during construction in a tunnel, so that a spraying unit of the extension rod 6, which is opposite to the other end of the jacking mechanism, can finish spraying operation under the condition of keeping a proper distance from a spraying surface of the tunnel; generally, the lifting mechanism is a telescopic cylinder 10.
In the utility model, the detachable arch support 7 is arranged at the other end of the extension rod 6, which is opposite to the jacking mechanism, and the detachable structure ensures that different spraying surfaces can be realized for tunnels with different structures; in the practical application process, one or more arched supports 7 can be used for realizing the wet spraying operation of a single row or an array surface, and simultaneously, the arched supports can be parallel to the section of a tunnel or can be vertical to realize the wet spraying of a common tunnel or a variable-diameter tunnel; in the application process, the distance between the arched bracket 7 and the working surface can be timely fed back through the distance sensor arranged on the arched bracket, and the wet spraying effect is ensured.
In the utility model, in order to ensure the supporting force of the arch support 7, the number of the extension rods 6 can be generally 2, and the end part of the push rod 5 matched with each extension rod 6 is a bevel, which is used for sleeving the telescopic cylinder 10 and the extension rod 6, so that the telescopic cylinder 10 and the extension rod 6 are conveniently arranged, and in the process, only the part moving in the horizontal direction is the push rod 5 as a whole.
The spraying unit comprises a nozzle 2 arranged on an arch support 7, any nozzle 2 is connected to the pumping unit through a spray pipe, any nozzle 2 is connected to the air compressor through an air pipe, and a proportional valve is arranged between the nozzle 2 and the pumping unit in a matching manner.
The sensing mechanism comprises a pressure sensor matched with the air pipe.
According to the utility model, the spraying of the material at the nozzle 2 is completed through the cooperation of the pumping unit and the air compressor, meanwhile, a proportional valve is arranged between the nozzle 2 and the pumping unit, and the pressure and flow parameters between the pumping unit and the nozzle 2 are regulated or continuously controlled, so that the spraying can realize feeding according to the preset change speed, and the material can be pumped in place in time; the proportional valve can be set on demand by itself.
In the utility model, the pressure sensor is matched with the control end to transmit pressure data to the control end, and the control end controls the air compressor to output.
An auxiliary lifting mechanism 3 is arranged at the bottom of the door frame 11.
In the utility model, in order to ensure a sufficient working surface of the equipment, the auxiliary lifting mechanism 3 is arranged at the bottom of the portal 11, and in the implementation process, the auxiliary lifting mechanism can be provided with a structure comprising supporting legs, a jacking cylinder matched with the supporting legs, and an output end of the jacking cylinder propped against the bottom of the portal 11.
The working principle of the utility model is as follows:
step 1: all the working units are properly configured and placed in an initial position, and the walking rack 1 advances to a target position of the tunnel;
step 2: the air compressor outputs, the pushing mechanism works, the pushing push rod 5 and the rotating mechanism are pushed to a preset position, the pushing mechanism is stopped, the rotating mechanism is prepared, the arched bracket 7 is lifted to the preset position by the jacking mechanism, the pumping unit is controlled to work by the air compressor, and the nozzle 2 is prepared;
step 3: as the rotating mechanism starts to rotate, the nozzle 2 realizes material injection at a preset change speed, and the air quantity at the pumping unit and the nozzle 2 is controlled in the process; after finishing the operation of a tunnel section, the pushing mechanism works, the pushing rod and the rotating mechanism are continuously pushed out to a preset position, the pushing mechanism is stopped, and the step 3 is repeated;
step 4: in the process, after the pushing mechanism pushes out to a certain safety distance, the pushing mechanism is retracted, and the traveling trolley 1 advances by the retracted distance; repeating the step 2; in the process, if the ejection distance still cannot be met after the ejection of the ejection mechanism, the auxiliary lifting mechanism 3 is lifted, and the step 2 is repeated.
Claims (10)
1. A wet blasting apparatus for a tunnel, characterized in that: the device comprises a walking trolley, wherein a push-out type operation unit is arranged at the front end of the walking trolley, an injection unit is arranged in the push-out type operation unit, a pumping unit and an air compressor are arranged in the injection unit, the pumping unit is connected to a charging bucket, and the push-out type operation unit, the pumping unit and the air compressor are arranged in a matched mode; and a sensing mechanism is arranged in cooperation with the push-out type operation unit.
2. A wet blasting apparatus for tunnels according to claim 1, wherein: the pushing-out type operation unit comprises a sleeve hole arranged at the top of the front end of the traveling trolley, a push rod penetrates through the sleeve hole, a rotating mechanism is arranged in cooperation with the push rod, and a pushing-out mechanism is arranged in cooperation with the push rod and the rotating mechanism; one end of the extension rod is arranged at the front end part of the push rod, and a jacking mechanism is arranged in cooperation with the extension rod; the other end of the extension rod is provided with a detachable arch support, and a spraying unit is arranged in cooperation with the arch support; the sensing mechanism comprises a distance sensor matched with the arched bracket.
3. A wet blasting apparatus for tunnels according to claim 2, wherein: the rotating mechanism comprises a stepping motor arranged on the walking trolley.
4. A wet blasting apparatus for tunnels according to claim 2, wherein: the pushing mechanism comprises a pushing cylinder arranged on the walking trolley, and the pushing cylinder is matched with the air compressor.
5. A wet blasting apparatus for tunnels according to claim 4, wherein: the sensing mechanism comprises a stroke sensor matched with the pushing-out cylinder.
6. A wet blasting apparatus for tunnels according to claim 2, wherein: the jacking mechanism comprises a telescopic cylinder which is matched with the front end part of the push rod and the end part of the extension rod, and the telescopic cylinder is matched with the air compressor.
7. A wet blasting apparatus for tunnels according to claim 2, wherein: the spraying unit comprises a nozzle arranged on the arch-shaped bracket, any nozzle is connected to the pumping unit through a spray pipe, any nozzle is connected to the air compressor through an air pipe, and a proportional valve is arranged between the nozzle and the pumping unit.
8. The wet blasting apparatus for tunnels as claimed in claim 7, wherein: the sensing mechanism comprises a pressure sensor matched with the air pipe.
9. A wet blasting apparatus for tunnels according to claim 1, wherein: the walking trolley comprises a portal frame, a plurality of platforms are arranged in cooperation with the portal frame, and a walking wheel is arranged at the bottom of the portal frame.
10. A tunnel wet blasting apparatus according to claim 9, wherein: and an auxiliary lifting mechanism is arranged at the bottom of the portal frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320592533.8U CN219176349U (en) | 2023-03-23 | 2023-03-23 | Wet spraying equipment for tunnel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320592533.8U CN219176349U (en) | 2023-03-23 | 2023-03-23 | Wet spraying equipment for tunnel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219176349U true CN219176349U (en) | 2023-06-13 |
Family
ID=86660003
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320592533.8U Active CN219176349U (en) | 2023-03-23 | 2023-03-23 | Wet spraying equipment for tunnel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219176349U (en) |
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2023
- 2023-03-23 CN CN202320592533.8U patent/CN219176349U/en active Active
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