CN106640141A - Pumping mechanism and mine-used wet spraying machine - Google Patents
Pumping mechanism and mine-used wet spraying machine Download PDFInfo
- Publication number
- CN106640141A CN106640141A CN201710040493.5A CN201710040493A CN106640141A CN 106640141 A CN106640141 A CN 106640141A CN 201710040493 A CN201710040493 A CN 201710040493A CN 106640141 A CN106640141 A CN 106640141A
- Authority
- CN
- China
- Prior art keywords
- hopper
- pumping
- pumping mechanism
- cylinder
- mechanism according
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000005086 pumping Methods 0.000 title claims abstract description 77
- 238000005507 spraying Methods 0.000 title claims abstract description 18
- 238000009434 installation Methods 0.000 claims description 27
- 238000005065 mining Methods 0.000 claims description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- 239000004744 fabric Substances 0.000 claims description 6
- 238000003756 stirring Methods 0.000 claims 1
- 238000010276 construction Methods 0.000 abstract description 16
- 239000000463 material Substances 0.000 description 9
- 238000007599 discharging Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/04—Lining with building materials
- E21D11/10—Lining with building materials with concrete cast in situ; Shuttering also lost shutterings, e.g. made of blocks, of metal plates or other equipment adapted therefor
- E21D11/105—Transport or application of concrete specially adapted for the lining of tunnels or galleries ; Backfilling the space between main building element and the surrounding rock, e.g. with concrete
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Architecture (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
- Road Paving Machines (AREA)
Abstract
The invention relates to the field of underground construction machinery, in particular to a pumping mechanism and a mine-used wet spraying machine. The pumping mechanism comprises a hopper and a pumping device, wherein the pumping device is connected with the hopper; the pumping mechanism further comprises an adjustable supporting device used for adjusting the height of the hopper, wherein the adjustable supporting device is movably connected with the hopper and the pumping device respectively. The mine-used wet spraying machine comprises a vehicle frame and further comprises the pumping mechanism, wherein the pumping mechanism is connected with the vehicle frame. The height of the hopper in the pumping mechanism of the wet spraying machine can be flexibly adjusted by using the arranged adjustable supporting device according to different construction sites and different heights of concrete tank trucks, so as to adapt to unloading heights of the concrete tank trucks. Therefore, the construction efficiency is improved.
Description
Technical field
The present invention relates to underground construction mechanical field, and in particular to a kind of pumping mechanism and mining wet-spraying machine.
Background technology
The in-car concrete of concrete tank is mainly collected and stirred by wet-spraying machine pumping mechanism, and by concrete conveyance extremely
At injection hand.At present all there is feeding height height in mining wet-spraying machine on the market, not be suitable for coagulation in narrow and small mine working
Native tank car feeding.
The content of the invention
For the problems referred to above, the present invention proposes a kind of adjustable pumping mechanism of hopper height and mining wet-spraying machine can be with
Adapt to different construction sites.
Pumping mechanism according to the present invention includes hopper and pumping installations.Pumping installations is connected with hopper.Also include for
Adjust the adjustable support of hopper height.Adjustable support is flexibly connected respectively with hopper and pumping installations.
By the adjustable support for arranging, can be according to different construction sites and differing heights concrete tank come flexibly
The height for adjusting hopper in wet-spraying machine pumping mechanism adapts to concrete tank discharging height, so as to improve efficiency of construction.
Preferably, adjustable support includes support cylinder and the pendulous device for controlling pumping installations pivot angle.Support
Oil cylinder is flexibly connected with hopper.Pendulous device for controlling pumping installations pivot angle is flexibly connected with pumping installations.
Under the control action of hydraulic system, hopper is controlled by the cooperation of the flexible and pendulous device of support cylinder
Swing so as to adjust the height of hopper.
Preferably, the pendulous device for controlling pumping installations pivot angle includes axle, oscillating bearing, bearing block.Axle and pumping
Device is fixedly connected.Oscillating bearing is located between axle and bearing block.
The spherical sliding contact area of oscillating bearing is big, and inclination angle is big, there is larger load-carrying ability and impact resistance, and
With anticorrosive, wear-resistant, Self-aligning, lubricated the characteristics of, even if install dislocation also can normal work.
Preferably, pumping installations include it is coaxially arranged interconnect ground pumping oil cylinder and concrete conveying cylinder, be arranged in it is mixed
Water tank, oscillating oil cylinder on solidifying soil conveying cylinder, conveying pipe valve.Concrete conveying cylinder is connected with hopper.Oscillating oil cylinder and hopper
Rear wall plate connects.Conveying pipe valve is arranged in hopper and is connected with oscillating oil cylinder.
Pumping oil cylinder, concrete conveying cylinder, water tank are coaxially arranged, can be while being installed to vehicle frame when being installed on car load
Inside guarantee compact conformation.By the effect of hydraulic control system, oscillating oil cylinder can drive conveying pipe valve one end to swing.Pumping
When, the conveying pipe valve mouth of pipe replaces connection with the cylinder mouth of two concrete conveying cylinders, is directed at which cylinder mouth, and which conveying cylinder is just
The discharge into delivery pipe, while the then suction from hopper of another concrete conveying cylinder.
Preferably, screen cloth, electromagnetic shaker, agitator, shedding mechanism are provided with hopper.
By screen cloth, can prevent from entering in material bin more than the aggregate of given size, while can also be to the supplied materials poured into
Play cushioning effect, it is to avoid material moment pours in blocking concrete conveying cylinder.Electromagnetic shaker may further ensure that supplied materials is put down
It is slow to fall in hopper.Agitator is continuously stirred prevents concrete setting, precipitation.
Preferably, electromagnetic shaker is pneumatic vibrator device.
Using pneumatic vibrator device, not only safety but also energy-conservation.
Preferably, pumping mechanism according to the present invention also includes hopper locking system.Hopper locking system is connected with hopper.
Can be realized by locking system locked in hopper operating position and transportation, it is to avoid adjustable support
Vibrations stress, with the reliability and service life that ensure safety and improve whole equipment.
Preferably, hopper locking system includes the locking seat and lock pin of detachable.Locking seat is connected with hopper.Locking seat
It is provided with the fraising for laying the lock pin.
The locking seat of detachable simple and fast in installation and removal.The fraising arranged on locking seat simultaneously can be according to lock
Stop bit puts difference to arrange, and coordinates with locking pin and ensures that the reliability in required lock position is fixed.
Mining wet-spraying machine according to the present invention, including vehicle frame, also including pumping mechanism described above.Pumping mechanism and car
Frame connects.
Because pumping mechanism described above can be by the adjustable support of setting come the height of flexible modulation hopper
Adapt to concrete tank discharging and highly improve efficiency of construction, therefore the mining wet-spraying machine including this pumping mechanism can also be adapted to
The concrete tank discharging of different construction sites and differing heights is highly improving efficiency of construction.
Description of the drawings
Hereinafter the present invention will be described in more detail based on embodiment and refer to the attached drawing.Wherein：
Fig. 1 is the pumping mechanism structural representation of the embodiment of the present invention.
Fig. 2 is the pumping mechanism structural representation of the embodiment of the present invention.
Fig. 3 is the pumping installations and pendulous device structural representation of the embodiment of the present invention.
Fig. 4 is the locking system structural representation of the embodiment of the present invention.
Fig. 5 is the mining wet-spraying machine structural representation of the embodiment of the present invention.
In the accompanying drawings, identical part uses identical reference.Accompanying drawing is not according to actual ratio.Respectively mark in figure
Number represent：1st, pumping mechanism；10th, hopper；100th, screen cloth, 101, electromagnetic shaker；102nd, agitator；103rd, shedding mechanism；11st, pump
Device；110th, oil cylinder is pumped；111st, concrete conveying cylinder；112nd, water tank；113rd, oscillating oil cylinder；114th, pipe valve is conveyed；2nd, it is adjustable
Support meanss；21st, support cylinder；22nd, pendulous device；221st, axle；222nd, oscillating bearing；223rd, bearing block；3rd, hopper locking dress
Put；31st, locking seat；32nd, lock pin；33rd, ream；4th, vehicle frame；5th, mining wet-spraying machine.
Specific embodiment
Below in conjunction with accompanying drawing, the invention will be further described.
As depicted in figs. 1 and 2, the pumping mechanism 1 in the present embodiment includes hopper 10 and pumping installations 11.Pumping installations 11
It is connected with hopper 10.Also include the adjustable support 2 for adjusting the height of hopper 10.Adjustable support 2 respectively with hopper
10 and pumping installations 11 be flexibly connected.
The adjustable support of setting is adjusted according to different construction sites and differing heights concrete tank, can be with spirit
The height for adjusting hopper in wet-spraying machine pumping mechanism living adapts to concrete tank discharging height, so as to improve efficiency of construction.
Preferably, as shown in Fig. 2 the adjustable support 2 in the present embodiment includes support cylinder 21 and for controlling pump
Send the pendulous device 22 of device pivot angle.Support cylinder 21 is flexibly connected with hopper 10.For controlling the swing of pumping installations pivot angle
Device 22 is flexibly connected with pumping installations 22.
Under the control action of hydraulic system, hopper is controlled by the cooperation of the flexible and pendulous device of support cylinder
Swing so as to adjust the height of hopper.
As shown in Figure 3, it is preferable that being used to control the pendulous device 22 of pumping installations pivot angle in the embodiment of the present invention includes axle
221st, oscillating bearing 222, bearing block 223.Axle 221 is fixedly connected with pumping installations 11.Oscillating bearing 222 is located at axle 221 and axle
Between bearing 223.
The spherical sliding contact area of oscillating bearing is big, and inclination angle is big, there is larger load-carrying ability and impact resistance, and
With anticorrosive, wear-resistant, Self-aligning, lubricated the characteristics of, even if install dislocation also can normal work.
Preferably, as shown in figure 3, the pumping installations 11 in the present embodiment includes that the coaxially arranged ground that interconnects pumps oil cylinder
110 and concrete conveying cylinder 111, be arranged on concrete conveying cylinder water tank 112, oscillating oil cylinder 113, conveying pipe valve 114.It is mixed
Solidifying soil conveying cylinder 111 is connected with hopper 10.Oscillating oil cylinder 113 is connected with the rear wall plate of hopper 10.Conveying pipe valve 114 is arranged in material
It is connected with oscillating oil cylinder 113 in bucket 10.
Specifically he, concrete conveying cylinder 111 be connected by water tank 112 with the piston rod of pumping oil cylinder 110, oily by pumping
The stretching motion of the piston rod of cylinder 110 realizes that the row of concrete inhales work.Water tank 112 is to concrete conveying cylinder 111 and pumping oil
Cylinder 113 plays connection supporting role, while the piston of pumping oil cylinder 110 can also be played cooling and cleaning action.
Pumping oil cylinder, concrete conveying cylinder, water tank are coaxially arranged, can be while being installed to vehicle frame when being installed on car load
Inside guarantee compact conformation.By the effect of hydraulic control system, oscillating oil cylinder can drive conveying pipe valve one end to swing.Pumping
When, the conveying pipe valve mouth of pipe replaces connection with the cylinder mouth of two concrete conveying cylinders, is directed at which cylinder mouth, and which conveying cylinder is just
The discharge into delivery pipe, while the then suction from hopper of another concrete conveying cylinder.
Specifically, the adjustable supports in the embodiment of the present invention fill the piston rod of the support cylinder 21 in 2 and hopper 10 is hinged.
The cylinder barrel of support cylinder 21 is articulated with vehicle frame 4.The bearing block 223 in pendulous device 22 in the embodiment of the present invention and vehicle frame 4
Welding, one end connection water tank 112 of axle 221, between the other end and bearing block 223 of axle 221 oscillating bearing 222 is provided with.
Hopper can form adjustable supports fulcrum by swing mechanism and vehicle frame, and support cylinder is movable with hopper and vehicle frame respectively
Connection, can control the flexible of support cylinder by hydraulic control system makes hopper around adjustable supports spot wobble.So as to flexible
Adjust the discharging height that hopper height meets different construction sites differing heights concrete tank height.
As shown in Figure 2, it is preferable that be provided with screen cloth 100, electromagnetic shaker 101, agitator in the hopper 10 in the present embodiment
102nd, shedding mechanism 103.
By screen cloth, can prevent from entering in material bin more than the aggregate of given size, while can also be to the supplied materials poured into
Play cushioning effect, it is to avoid material moment pours in blocking concrete conveying cylinder.Electromagnetic shaker may further ensure that supplied materials is put down
It is slow to fall in hopper.Agitator is continuously stirred prevents concrete setting, precipitation.
Preferably, the electromagnetic shaker 101 in the present embodiment is pneumatic vibrator device.
Using this pneumatic vibrator device, not only safety but also energy-conservation.
Preferably, as shown in figure 4, the pumping mechanism 1 in the present embodiment also includes hopper locking system 3.Hopper locking is filled
Put 3 to be connected with hopper 10.
Can be realized by locking system locked in hopper operating position and transportation, it is to avoid adjustable support
Vibrations stress, with the reliability and service life that ensure safety and improve whole equipment.
Preferably, the device of hopper locking 3 includes the locking seat 31 and lock pin 32 of detachable.Locking seat 31 connects with hopper 10
Connect.Locking seat 31 is provided with the fraising 33 for laying the lock pin 32.
The locking seat of detachable simple and fast in installation and removal.The fraising arranged on locking seat simultaneously can be according to lock
Stop bit puts difference to arrange, and coordinates with locking pin and ensures that the reliability in required lock position is fixed.
As shown in figure 5, mining wet-spraying machine 5 according to the present invention, including vehicle frame 4, also including pumping mechanism described above
1.Pumping mechanism 1 is connected with vehicle frame 4.
Because pumping mechanism described above can be by the adjustable support of setting come the height of flexible modulation hopper
Adapt to concrete tank discharging and highly improve efficiency of construction, therefore the mining wet-spraying machine including this pumping mechanism can also be adapted to
The concrete tank discharging of different construction sites and differing heights is highly improving efficiency of construction.
Although by reference to preferred embodiment, invention has been described, in the situation without departing from the scope of the present invention
Under, various improvement can be carried out to it and part therein can be replaced with equivalent.Especially, as long as there is no structure punching
Prominent, the every technical characteristic being previously mentioned in each embodiment can combine in any way.The invention is not limited in text
Disclosed in specific embodiment, but including all technical schemes for falling within the scope of the appended claims.
Claims (9)
1. a kind of pumping mechanism, including hopper and pumping installations；The pumping installations is connected with the hopper, it is characterised in that
Also include the adjustable support for adjusting hopper height；The adjustable support respectively with the hopper and pumping installations
It is flexibly connected.
2. pumping mechanism according to claim 1, it is characterised in that the adjustable support includes support cylinder and use
In the pendulous device of control pumping installations pivot angle；The support cylinder is flexibly connected with the hopper；It is described to pump for control
The pendulous device of device pivot angle is flexibly connected with the pumping installations.
3. pumping mechanism according to claim 2, it is characterised in that the swing for controlling pumping installations pivot angle is filled
Put including axle, oscillating bearing, bearing block；The axle is fixedly connected with the pumping installations；The oscillating bearing is located at the axle
Between the bearing block.
4. pumping mechanism according to any one of claim 1 to 3, it is characterised in that the pumping installations includes coaxial
Arrangement interconnect ground pumping oil cylinder and concrete conveying cylinder, be arranged on the concrete conveying cylinder water tank, oscillating oil cylinder,
Conveying pipe valve；The concrete conveying cylinder is connected with the hopper；The oscillating oil cylinder is connected with the rear wall plate of the hopper；Institute
State conveying pipe valve and be arranged in hopper and be connected with the oscillating oil cylinder.
5. pumping mechanism according to claim 4, it is characterised in that screen cloth, electromagnetic shaker, stirring are provided with the hopper
Device, shedding mechanism.
6. pumping mechanism according to claim 5, it is characterised in that the electromagnetic shaker is pneumatic vibrator device.
7. pumping mechanism according to any one of claim 1 to 6, it is characterised in that also including hopper locking system；Institute
State hopper locking system to be connected with the hopper.
8. pumping mechanism according to claim 7, it is characterised in that the hopper locking system includes the locking of detachable
Seat and lock pin；The locking seat is connected with the hopper；The locking seat is provided with the fraising for laying the lock pin.
9. a kind of mining wet-spraying machine, including vehicle frame, it is characterised in that also including the pumping any one of claim 1 to 8
Mechanism；The pumping mechanism is connected with vehicle frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710040493.5A CN106640141A (en) | 2017-01-20 | 2017-01-20 | Pumping mechanism and mine-used wet spraying machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710040493.5A CN106640141A (en) | 2017-01-20 | 2017-01-20 | Pumping mechanism and mine-used wet spraying machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106640141A true CN106640141A (en) | 2017-05-10 |
Family
ID=58841649
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710040493.5A Pending CN106640141A (en) | 2017-01-20 | 2017-01-20 | Pumping mechanism and mine-used wet spraying machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106640141A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108953257A (en) * | 2018-08-21 | 2018-12-07 | 西安长大智能装备研究所有限公司 | A kind of hydraulic system of concrete spraying machine |
| CN114382673A (en) * | 2021-12-31 | 2022-04-22 | 河南和远机械科技有限公司 | Hopper cavity prevention device of concrete wet spraying machine |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4045345B2 (en) * | 2003-08-22 | 2008-02-13 | 飛島建設株式会社 | Pump pulsation-linked quick setting agent supply system |
| CN201610755U (en) * | 2010-02-10 | 2010-10-20 | 山东科技大学 | Novel underground wet-spraying machine used in coal mine |
| CN102587935A (en) * | 2012-03-27 | 2012-07-18 | 四川省御翔劳务分包有限公司 | Tunnel spray anchor vehicle |
| CN102862232A (en) * | 2012-08-28 | 2013-01-09 | 山西晋煤集团金鼎煤机矿业有限责任公司 | Movable wet shotcrete mixing station |
| CN203463243U (en) * | 2013-08-14 | 2014-03-05 | 山东鲁科自动化技术有限公司 | Full-hydraulic concrete pump |
| JP6009293B2 (en) * | 2012-09-20 | 2016-10-19 | 鹿島建設株式会社 | Tunnel construction method |
| CN106193612A (en) * | 2016-08-09 | 2016-12-07 | 郭颂怡 | Towed concrete pump car |
| CN206419036U (en) * | 2017-01-20 | 2017-08-18 | 中国铁建重工集团有限公司 | A kind of pumping mechanism and mining wet-spraying machine |
-
2017
- 2017-01-20 CN CN201710040493.5A patent/CN106640141A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4045345B2 (en) * | 2003-08-22 | 2008-02-13 | 飛島建設株式会社 | Pump pulsation-linked quick setting agent supply system |
| CN201610755U (en) * | 2010-02-10 | 2010-10-20 | 山东科技大学 | Novel underground wet-spraying machine used in coal mine |
| CN102587935A (en) * | 2012-03-27 | 2012-07-18 | 四川省御翔劳务分包有限公司 | Tunnel spray anchor vehicle |
| CN102862232A (en) * | 2012-08-28 | 2013-01-09 | 山西晋煤集团金鼎煤机矿业有限责任公司 | Movable wet shotcrete mixing station |
| JP6009293B2 (en) * | 2012-09-20 | 2016-10-19 | 鹿島建設株式会社 | Tunnel construction method |
| CN203463243U (en) * | 2013-08-14 | 2014-03-05 | 山东鲁科自动化技术有限公司 | Full-hydraulic concrete pump |
| CN106193612A (en) * | 2016-08-09 | 2016-12-07 | 郭颂怡 | Towed concrete pump car |
| CN206419036U (en) * | 2017-01-20 | 2017-08-18 | 中国铁建重工集团有限公司 | A kind of pumping mechanism and mining wet-spraying machine |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108953257A (en) * | 2018-08-21 | 2018-12-07 | 西安长大智能装备研究所有限公司 | A kind of hydraulic system of concrete spraying machine |
| CN114382673A (en) * | 2021-12-31 | 2022-04-22 | 河南和远机械科技有限公司 | Hopper cavity prevention device of concrete wet spraying machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB03 | Change of inventor or designer information |
Inventor after: Liu Feixiang Inventor after: Guo Aijun Inventor after: Zheng Daqiao Inventor after: Liu Zaizheng Inventor after: Zhao Jun Inventor after: Zhu Bin Inventor after: Gong Jiawen Inventor after: Pang Le Inventor before: Liu Feixiang Inventor before: Cheng Yongliang Inventor before: Zheng Daqiao Inventor before: Liu Zaizheng Inventor before: Luo Jianli Inventor before: Zhao Jun Inventor before: Zhu Bin |
|
| CB03 | Change of inventor or designer information | ||
| CB02 | Change of applicant information |
Address after: 410100 No. 88 East 7 Line, Changsha Economic and Technological Development Zone, Hunan Province Applicant after: China Railway Construction Heavy Industry Group Co., Ltd. Address before: 410100 No. 88 Dongqi Road, Jingkai District, Changsha City, Hunan Province Applicant before: China Railway Construction Heavy Industry Co.,Ltd. |
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| CB02 | Change of applicant information | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170510 |
|
| RJ01 | Rejection of invention patent application after publication |