CN215672252U - Concrete spraying and protecting construction device for tunnel construction - Google Patents
Concrete spraying and protecting construction device for tunnel construction Download PDFInfo
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- CN215672252U CN215672252U CN202122031739.7U CN202122031739U CN215672252U CN 215672252 U CN215672252 U CN 215672252U CN 202122031739 U CN202122031739 U CN 202122031739U CN 215672252 U CN215672252 U CN 215672252U
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Abstract
The utility model discloses a concrete spraying and protecting construction device for tunnel construction, which comprises a base and a crawler belt, wherein a support, a material return box and an injection machine main body are sequentially arranged on the base, the support comprises a lifting mechanism, a rotating mechanism and a supporting mechanism, the lifting mechanism comprises a machine box, a screw rod, a lifting block and a lifting rod, the upper end of the lifting rod is connected with a bedplate, the rotating mechanism comprises a circular plate and a gear ring, the supporting mechanism comprises two symmetrically arranged vertical beams, a rotating shaft is arranged at the upper end between the two vertical beams, a sleeve is arranged in the middle of the rotating shaft, a fixed pipe is sleeved in the sleeve in a matched manner, one end of the fixed pipe is connected with an injection nozzle, the other end of the fixed pipe is connected with a conveying hose, a material receiving cover is arranged on the fixed pipe, a material receiving hose is arranged on the material receiving cover, an exhaust fan is arranged on the material receiving hose, and the end part of the material receiving hose is communicated with the material return box. The utility model has high automation degree and good spraying quality, can recover concrete materials and has obvious economic value and social value.
Description
Technical Field
The utility model relates to the technical field of tunnel construction, in particular to a concrete spraying and protecting construction device for tunnel construction.
Background
In water conservancy projects, closed water delivery channels are constructed by excavating through mountains frequently for water delivery or flood discharge, the closed water delivery channels are called hydraulic tunnels, and in the tunnel construction process, with the popularization and application of a new Austrian construction technology, the sprayed concrete has become a main supporting form of a tunnel engineering structure. The concrete spraying and protecting device is required to be used when concrete is sprayed, the working principle of the device is that high-pressure gas generated by compressed air of an air compressor is utilized to stir the concrete in an accelerating chamber and mix the concrete with the compressed air, the concrete is continuously conveyed into a stirrer along a pipeline at a constant flow rate and is uniformly added with water for atomization and stirring, slurry is continuously and uninterruptedly sprayed onto a construction surface, and the concrete is condensed and hardened on the construction surface, so that a concrete supporting layer is formed, and a tunnel is supported. At present, when the existing concrete spraying and protecting device is used, a worker mostly holds a spraying head to spray concrete, and the following problems still exist: firstly, because the amount of concrete sprayed by the spray head is large, the generated recoil is also large, the weight of the spray pipe is also large, the labor intensity of workers is high, and the problem that the workers are injured easily occurs; secondly, the sprayed concrete has uneven thickness, substandard strength and uneven surface, and the concrete is easy to crack, fall off and collapse, so that the supporting effect is reduced, and the excavation quality of the tunnel is influenced; thirdly, there will always be a lot of concrete resilience when spraying concrete, can waste more concrete material, increases the spraying of concrete and protects the cost, and simultaneously, the resilience of concrete still can produce a large amount of dust, has reduced the environment of construction, can influence constructor's healthy. Therefore, it is objectively needed to develop a concrete spraying construction device for tunnel construction, which has high automation degree and good spraying quality and can recover concrete materials.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a concrete spraying construction device for tunnel construction, which has high automation degree and good spraying quality and can recover concrete materials.
The utility model aims to realize the purpose, which comprises a base and crawler belts arranged on two sides of the base, wherein a bracket, a feed back box and an injector main body are sequentially arranged on the base, the bracket comprises a lifting mechanism, a rotating mechanism and a supporting mechanism, the lifting mechanism comprises a case and a screw rod vertically arranged in the case, the upper end and the lower end of the screw rod are respectively and rotatably connected with the top and the bottom in the case, a driven gear is arranged at the lower part of the screw rod, a lifting motor is arranged on the base outside the case, a driving gear is arranged on an output shaft of the lifting motor, a through hole is processed on the side wall of the case, a chain is arranged in the through hole, two ends of the chain are respectively in transmission connection with the driving gear and the driven gear, a lifting block is screwed on the screw rod above the driven gear, a slide rail is vertically arranged on the inner wall of the case, the side surface of the lifting block is in sliding connection with the slide rail, and a plurality of lifting rods are arranged on the lifting block, the upper end of the lifting rod penetrates through the top of the case and then is connected with a bedplate, the rotating mechanism comprises a circular plate and a gear ring arranged on the side surface of the circular plate, the outer side of the bedplate is provided with a rotating motor, an output shaft of the rotating motor is provided with a driving gear meshed with the gear ring, the center of the lower surface of the circular plate is provided with a vertical rod, the lower end of the vertical rod is rotatably connected with the center of the bedplate, the supporting mechanism comprises two symmetrically arranged vertical beams, the lower ends of the vertical beams are fixed on the circular plate, the upper end between the two vertical beams is provided with a rotating shaft, one end of the rotating shaft is rotatably connected with the vertical beams, the other end of the rotating shaft penetrates through the vertical beams and then is in transmission connection with an adjusting motor arranged on the vertical beams, the middle part of the rotating shaft is provided with a sleeve, a fixed pipe is matched and sleeved in the sleeve, one end of the fixed pipe is connected with an injection nozzle, the other end of the conveying hose is communicated with a concrete outlet of the injection machine main body, be provided with open receipts material cover on the fixed pipe that is close to injection nozzle one side, receive the open end of material cover towards one side of injection nozzle, be provided with the receipts material hose on keeping away from the receipts material cover of injection nozzle one side, receive and be provided with the air exhauster on the material hose, receive the tip and the feed back case intercommunication of material hose, the top of feed back case is provided with the blast pipe.
Furthermore, a damping layer is arranged on the upper surface of the base.
Furthermore, the open end of the material receiving cover is provided with a ring plate, and a plurality of illuminating lamps are uniformly distributed on the circumference of the ring plate.
Furthermore, a camera is installed on the ring plate.
Furthermore, an infrared laser instrument is arranged on the fixed tube.
Furthermore, a screw hole is processed on the side wall of the fixing pipe, and a fastening bolt is screwed in the screw hole.
When the device is used, the device is moved to a position where concrete needs to be sprayed through the crawler belt, the fixing pipe is inserted into the sleeve and fixed, the lifting motor is started, the lifting motor sequentially drives the driving gear, the chain and the driven gear to rotate, the driven gear drives the screw to rotate, and the lifting block cannot perform circular motion along with the screw; the rotating motor is started, the rotating motor drives the driving gear to rotate, the driving gear drives the gear ring and the circular plate to rotate, and the circular plate drives the supporting mechanism to rotate, so that the injection angle of the injection nozzle in the horizontal direction is adjusted; the adjusting motor is started, the adjusting motor drives the rotating shaft to rotate, and the rotating shaft drives the sleeve to rotate, so that the adjustment of the injection angle in the vertical direction is realized, the injection nozzle obtains six degrees of freedom through the adjustment of the three mechanisms, the operability is good, the injection nozzle in the injection state can be kept perpendicular to the working surfaces in all directions, the rebound and collapse are reduced to the maximum extent, and the injection quality of concrete is improved. At the concrete injection in-process, the resilience takes place for some concrete, and the diffusion is in the air, at this moment, open the air exhauster, concrete in the air is to receiving the gathering of material cover under the suction effect, and send into the feed back case through receiving the material hose and collect, can reuse after certain treatment, both can reduce the dust in the air, reduce the pollution of environment, can reduce the waste of concrete material again, improve the rate of utilization of concrete, reduce the injection cost, and finally, this device is when using, do not need the handheld injection pipe of workman, workman's intensity of labour has been reduced, and the power of each mechanism is provided by corresponding machinery, degree of automation is higher, the operability is better. The utility model has high automation degree and good spraying quality, can recover concrete materials and has obvious economic value and social value.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic structural view of a stent 3 according to the present invention;
FIG. 3 is a schematic structural view of the support mechanism of the present invention;
in the figure: 1-base, 2-track, 3-support, 4-material returning box, 5-jet machine body, 6-machine box, 7-screw rod, 8-driven gear, 9-lifting motor, 10-driving gear, 11-chain, 12-lifting block, 13-lifting rod, 14-platen, 15-circular plate, 16-gear ring, 17-rotating motor, 18-driving gear, 19-vertical rod, 20-vertical beam, 21-rotating shaft, 22-sleeve, 23-fixed tube, 24-jet nozzle, 25-conveying hose, 26-material receiving cover, 27-material receiving hose, 28-exhaust fan, 29-shock-absorbing layer, 30-circular plate, 31-illuminating lamp, 32-camera, 33-infrared laser instrument, 34-fastening bolt, 35-adjusting motor.
Detailed Description
The present invention is further described with reference to the drawings, but the present invention is not limited thereto in any way, and any modification or improvement based on the present invention is within the protection scope of the present invention.
As shown in figures 1-3, the utility model comprises a base 1 and caterpillar tracks 2 arranged on two sides of the base 1, wherein the base 1 and the caterpillar tracks 2 are both of the existing structure, a support 3, a feed back box 4 and an injection machine main body 5 are sequentially arranged on the base 1, the injection machine main body 5 is the main body structure of the existing concrete injection machine and comprises a storage hopper, a blowing chamber and the like, the support 3 comprises a lifting mechanism, a rotating mechanism and a supporting mechanism, the lifting mechanism comprises a machine box 6 and a screw 7 vertically arranged in the machine box 6, the upper end and the lower end of the screw 7 are respectively rotatably connected with the top and the bottom in the machine box 6, a driven gear 8 is arranged on the lower part of the screw 7, a lifting motor 9 is arranged on the base 1 outside the machine box 6, a driving gear 10 is arranged on an output shaft of the lifting motor 9, a through hole is processed on the side wall of the machine box 6, a chain 11 is arranged in the through hole, two ends of the chain 11 are respectively connected with the driving gear 10 and the driven gear 8, a screw 7 above a driven gear 8 is screwed with a lifting block 12, the inner wall of a case 6 is vertically provided with a slide rail, the side surface of the lifting block 12 is connected with the slide rail in a sliding way, the lifting block 12 is provided with a plurality of lifting rods 13, the upper end of each lifting rod 13 penetrates through the top of the case 6 and then is connected with a bedplate 14, a rotating mechanism comprises a circular plate 15 and a gear ring 16 arranged on the side surface of the circular plate 15, the outer side of the bedplate 14 is provided with a rotating motor 17, an output shaft of the rotating motor 17 is provided with a driving gear 18 meshed with the gear ring 16, the center of the lower surface of the circular plate 15 is provided with a vertical rod 19, the lower end of the vertical rod 19 is rotatably connected with the center of the bedplate 14, a supporting mechanism comprises two vertical beams 20 which are symmetrically arranged, the lower ends of the vertical beams 20 are fixed on the circular plate 15, the upper end between the two vertical beams 20 is provided with a rotating shaft 21, one end of the rotating shaft 21 is rotatably connected with the vertical beam 20, the other end penetrates through the vertical beam 20 and then is in transmission connection with an adjusting motor 35 arranged on the vertical beam 20, the middle part of pivot 21 is provided with sleeve pipe 22, the fit cover is equipped with fixed pipe 23 in the sleeve pipe 22, the one end of fixed pipe 23 is connected with injection nozzle 24, the other end is connected with delivery hose 25, delivery hose 25's tip and the concrete outlet intercommunication of injection machine main part 5, be provided with open receipts cover 26 on the fixed pipe 23 that is close to injection nozzle 24 one side, receive the open end of cover 26 towards one side of injection nozzle 24, be provided with receipts material hose 27 on receiving cover 26 of keeping away from injection nozzle 24 one side, be provided with air exhauster 28 on receiving hose 27, the tip of receiving hose 27 and feed back case 4 intercommunication, the top of feed back case 4 is provided with the blast pipe, elevator motor 9 in this device, rotating electrical machines 17 and adjusting motor 35 are current motor, can choose on the market, its power, parameters such as rotational speed can be confirmed according to the actual conditions.
When the device is used, the device is moved to a position where concrete needs to be sprayed through the crawler 2, the fixing pipe 23 is inserted into the sleeve 22 and fixed, the lifting motor 9 is started, the lifting motor 9 sequentially drives the driving gear 10, the chain 11 and the driven gear 8 to rotate, the driven gear 8 drives the screw 7 to rotate, and as the lifting block 12 cannot perform circular motion along with the screw 7, the lifting block 12 moves up and down when the screw 7 rotates, the lifting rod 13 and the bedplate 14 are driven to move up and down, so that the rotating mechanism and the supporting mechanism are driven to move up and down, and the adjustment of the spraying nozzle 24 in the height direction is realized; the rotating motor 17 is started, the rotating motor 17 drives the driving gear 18 to rotate, the driving gear 18 drives the gear ring 16 and the circular plate 15 to rotate, and the circular plate 15 drives the supporting mechanism to rotate, so that the adjustment of the injection angle of the injection nozzle 24 in the horizontal direction is realized; the adjusting motor 35 is started, the adjusting motor 35 drives the rotating shaft 21 to rotate, the rotating shaft 21 drives the sleeve 22 to rotate, so that the adjustment of the injection angle in the vertical direction is realized, the injection nozzle 24 obtains six degrees of freedom through the adjustment of the three mechanisms, the operability is good, the injection nozzle 24 in the injection state can be kept perpendicular to the working surfaces in all directions, the rebound and collapse are reduced to the maximum extent, and the injection quality of concrete is improved. In the concrete spraying process, the resilience of partial concrete occurs, and the diffusion is in the air, at this moment, open air exhauster 28, the concrete in the air is to receiving material cover 26 gathering under the suction effect, and send into feed back case 4 through receiving material hose 27 and collect, can reuse after certain processing, both can reduce the dust in the air, reduce the pollution of environment, the protection staff's is healthy, can reduce the waste of concrete material again, improve the rate of utilization of concrete, reduce the injection cost, and finally, this device is when using, do not need the handheld injection pipe of workman, workman's intensity of labour has been reduced, and the power of each mechanism is provided by corresponding machinery, degree of automation is higher, the operability is better.
The shock absorption layer 29 is arranged on the upper surface of the base 1, and the sprayer body 5 can vibrate in the spraying process of concrete, so that the vibration can be absorbed through the shock absorption layer 29, and the vibration caused to the ground is reduced.
Receive the opening end of material cover 26 and be provided with crown plate 30, the circumference equipartition has a plurality of light 31 on the crown plate 30, and light 31 can use the LED lamp for throw light on the injection face to the concrete, be convenient for spray the going on of work.
The ring plate 30 is provided with the camera 32, and the spraying protection process can be monitored more visually and conveniently through the camera 32, so that the control of the spraying protection process is facilitated.
Be provided with infrared laser instrument 33 on the fixed tube 23, infrared laser instrument 33 is current instrument, can produce infrared laser beam to fix a position the injection position of concrete, improve the accuracy nature of this device when the concrete is spouted and is protected.
When concrete sprays, can produce certain vibration and recoil on the fixed pipe 23, can lead to the staple 23 to deviate from sleeve pipe 22, influence the normal operating of spouting the protection work, in order to prevent the emergence of this kind of condition, processing has the screw on the lateral wall of fixed pipe 23, the screw is internal to be twisted into has fastening bolt 34, during the use, screw up fastening bolt 34, fastening bolt 34's screwed end supports on fixed pipe 23 to fix fixed pipe 23 firmly at sleeve pipe 22, improve the stability ability of this device during operation.
Claims (6)
1. The concrete spraying and protecting construction device for tunnel construction is characterized by comprising a base (1) and crawler belts (2) arranged on two sides of the base (1), wherein a support (3), a material returning box (4) and an injection machine main body (5) are sequentially arranged on the base (1), the support (3) comprises a lifting mechanism, a rotating mechanism and a supporting mechanism, the lifting mechanism comprises a case (6) and a screw rod (7) vertically arranged in the case (6), the upper end and the lower end of the screw rod (7) are respectively and rotatably connected with the top and the bottom in the case (6), a driven gear (8) is arranged on the lower portion of the screw rod (7), a lifting motor (9) is arranged on the base (1) on the outer side of the case (6), a driving gear (10) is arranged on an output shaft of the lifting motor (9), a through hole is processed on the side wall of the case (6), a chain (11) is arranged in the through hole, two ends of the chain (11) are respectively connected with a driving gear (10) and a driven gear (8), a lifting block (12) is screwed on a screw rod (7) above the driven gear (8), a slide rail is vertically arranged on the inner wall of the case (6), the side surface of the lifting block (12) is in sliding connection with the slide rail, a plurality of lifting rods (13) are arranged on the lifting block (12), a bedplate (14) is connected after the upper end of the lifting rod (13) penetrates through the top of the case (6), the rotating mechanism comprises a circular plate (15) and a gear ring (16) arranged on the side surface of the circular plate (15), a rotating motor (17) is arranged on the outer side of the bedplate (14), a driving gear (18) meshed with the gear ring (16) is arranged on an output shaft of the rotating motor (17), a vertical rod (19) is arranged at the center of the lower surface of the circular plate (15), the lower end of a vertical rod (19) is rotationally connected with the center of a bedplate (14), the supporting mechanism comprises two vertical beams (20) which are symmetrically arranged, the lower end of each vertical beam (20) is fixed on a circular plate (15), a rotating shaft (21) is arranged at the upper end between the two vertical beams (20), one end of the rotating shaft (21) is rotationally connected with the vertical beam (20), the other end of the rotating shaft passes through the vertical beam (20) and is in transmission connection with an adjusting motor (35) arranged on the vertical beam (20), a sleeve (22) is arranged in the middle of the rotating shaft (21), a fixed pipe (23) is sleeved in the sleeve (22) in a matching way, one end of the fixed pipe (23) is connected with an injection nozzle (24), the other end of the fixed pipe is connected with a conveying hose (25), the end part of the conveying hose (25) is communicated with a concrete outlet of the injection machine main body (5), an open material receiving cover (26) is arranged on the fixed pipe (23) close to one side of the injection nozzle (24), the open end of the material receiving cover (26) faces one side of the injection nozzle (24), a material receiving hose (27) is arranged on the material receiving cover (26) far away from one side of the injection nozzle (24), an exhaust fan (28) is arranged on the material receiving hose (27), the end part of the material receiving hose (27) is communicated with the material returning box (4), and an exhaust pipe is arranged at the top of the material returning box (4).
2. The concrete spraying and protecting construction device for tunnel construction according to claim 1, characterized in that a shock-absorbing layer (29) is arranged on the upper surface of the base (1).
3. The concrete spraying and protecting construction device for tunnel construction according to claim 1, wherein the open end of the material receiving cover (26) is provided with a ring plate (30), and a plurality of illuminating lamps (31) are uniformly distributed on the circumference of the ring plate (30).
4. The concrete spraying and protecting construction device for tunnel construction according to claim 3, wherein the ring plate (30) is provided with a camera (32).
5. The concrete spraying and protecting construction device for tunnel construction according to claim 1, wherein an infrared laser (33) is arranged on the fixed pipe (23).
6. The concrete spraying and protecting construction device for tunnel construction according to claim 1, wherein a screw hole is processed on the side wall of the fixing pipe (23), and a fastening bolt (34) is screwed into the screw hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122031739.7U CN215672252U (en) | 2021-08-27 | 2021-08-27 | Concrete spraying and protecting construction device for tunnel construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122031739.7U CN215672252U (en) | 2021-08-27 | 2021-08-27 | Concrete spraying and protecting construction device for tunnel construction |
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| Publication Number | Publication Date |
|---|---|
| CN215672252U true CN215672252U (en) | 2022-01-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122031739.7U Active CN215672252U (en) | 2021-08-27 | 2021-08-27 | Concrete spraying and protecting construction device for tunnel construction |
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| CN (1) | CN215672252U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116104540A (en) * | 2023-04-13 | 2023-05-12 | 中铁二十二局集团轨道工程有限公司 | Tunnel construction shotcrete platform truck |
-
2021
- 2021-08-27 CN CN202122031739.7U patent/CN215672252U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116104540A (en) * | 2023-04-13 | 2023-05-12 | 中铁二十二局集团轨道工程有限公司 | Tunnel construction shotcrete platform truck |
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