AU2020103316A4 - A feeding device for coal mine shotcreting machine - Google Patents
A feeding device for coal mine shotcreting machine Download PDFInfo
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- AU2020103316A4 AU2020103316A4 AU2020103316A AU2020103316A AU2020103316A4 AU 2020103316 A4 AU2020103316 A4 AU 2020103316A4 AU 2020103316 A AU2020103316 A AU 2020103316A AU 2020103316 A AU2020103316 A AU 2020103316A AU 2020103316 A4 AU2020103316 A4 AU 2020103316A4
- Authority
- AU
- Australia
- Prior art keywords
- feeding device
- spiral
- batching
- screw
- shotcrete machine
- 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.)
- Ceased
Links
- 239000003245 coal Substances 0.000 title description 3
- 230000007246 mechanism Effects 0.000 claims abstract description 106
- 239000000463 material Substances 0.000 claims abstract description 58
- 239000011378 shotcrete Substances 0.000 claims abstract description 17
- 238000003756 stirring Methods 0.000 claims abstract description 10
- 230000005540 biological transmission Effects 0.000 claims description 15
- 238000007599 discharging Methods 0.000 claims description 4
- 230000005641 tunneling Effects 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 4
- 239000000203 mixture Substances 0.000 abstract description 2
- 239000002002 slurry Substances 0.000 abstract description 2
- 238000007711 solidification Methods 0.000 abstract description 2
- 230000008023 solidification Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 7
- 239000004568 cement Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 241000237942 Conidae Species 0.000 description 1
- 241001124569 Lycaenidae Species 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 230000003245 working effect Effects 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C7/00—Controlling the operation of apparatus for producing mixtures of clay or cement with other substances; Supplying or proportioning the ingredients for mixing clay or cement with other substances; Discharging the mixture
- B28C7/04—Supplying or proportioning the ingredients
- B28C7/0404—Proportioning
- B28C7/0413—Proportioning two or more flows in predetermined ratio
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C7/00—Controlling the operation of apparatus for producing mixtures of clay or cement with other substances; Supplying or proportioning the ingredients for mixing clay or cement with other substances; Discharging the mixture
- B28C7/04—Supplying or proportioning the ingredients
- B28C7/0454—Volumetric measuring devices, e.g. for consecutively delivering predetermined volumes of ingredients
- B28C7/0477—Volumetric measuring devices, e.g. for consecutively delivering predetermined volumes of ingredients by using conveyor screws
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C7/00—Controlling the operation of apparatus for producing mixtures of clay or cement with other substances; Supplying or proportioning the ingredients for mixing clay or cement with other substances; Discharging the mixture
- B28C7/14—Supply means incorporated in, or mounted on, mixers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C7/00—Controlling the operation of apparatus for producing mixtures of clay or cement with other substances; Supplying or proportioning the ingredients for mixing clay or cement with other substances; Discharging the mixture
- B28C7/16—Discharge means, e.g. with intermediate storage of fresh concrete
- B28C7/162—Discharge means, e.g. with intermediate storage of fresh concrete by means of conveyors, other than those comprising skips or containers, e.g. endless belts, screws, air under pressure
- B28C7/167—Discharge means, e.g. with intermediate storage of fresh concrete by means of conveyors, other than those comprising skips or containers, e.g. endless belts, screws, air under pressure by means of a screw conveyor
-
- 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
- E21D11/40—Devices or apparatus specially adapted for handling or placing units of linings or supporting units for tunnels or galleries
Landscapes
- Engineering & Computer Science (AREA)
- Dispersion Chemistry (AREA)
- Structural Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Chemical & Material Sciences (AREA)
- Architecture (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Civil Engineering (AREA)
- Mixers Of The Rotary Stirring Type (AREA)
Abstract
A feeding device for shotcrete machine, which comprises a moving frame mounted on the
mine car, on which a telescopic frame is arranged. A radial material throwing mechanism is
arranged above the telescopic frame, and a spiral material lifting mechanism is arranged on the
radial material throwing mechanism. The lower end of the spiral material lifting mechanism is
hinged with three conical spiral material taking mechanisms which revolve around its axis and
rotate at 120 degrees, and one side of the radial material throwing mechanism is provided with
a worm gear drive mechanism for lifting the spiral material lifting mechanism, while the other
side is provided with a batching mechanism which is connected with the gear power of the
worm gear drive mechanism. The feeding device integrates batching and feeding into a whole,
and can directly complete the on-site batching and feeding of the slurry used by the shotcrete
machine at the underground tunneling working face, thus solving the problems of long-distance
transportation and early solidification of the prepared aggregate during transportation, omitting
the manual stirring process, and greatly improving the speed and quality of shotcrete support.
It has advantages of compact structure, convenient disassembly and assembly, high working
efficiency and stable pulp composition.
-1/8
Fgr7
Figure 1
Description
-1/8
Fgr7
Figure 1
PATENTS ACT 1990
A feeding device for coal mine shotcreting machine
The invention is described in the following statement:-
A feeding device for coal mine shotcreting machine
The invention relates to a material feeding device, in particular to a material feeding
device of a shotcrete machine which is suitable for supporting a mine rock roadway.
Shotcrete support technology has not only become the main form of mine rock
roadway support, but also a widely used lining technology in the fields of transportation,
water conservancy and urban subway. However, due to the lack of suitable mechanical
equipment in this process, the jet machine is mainly fed manually at present, which has
high labor intensity and low work efficiency.On the other hand, because the tunneling
faces under the well are scattered and the roadway space is narrow, dry-mixed bone
materials are often prepared by mixing stations on the ground during infrastructure
construction, and then transported to each tunneling face by harvesters. Because the
tunneling faces are usually far away from the shaft, the aggregates configured on the
ground will solidify in advance during regular transportation, and it is necessary to mix
materials manually when using them, which is laborious and time-consuming, seriously
affecting the speed of support construction and the quality of shotcreting. For this reason,
researchers have developed several models, such as chain bucket feeder, negative
pressure suction machine and wet spray extrusion pump. However, due to complex structure, inconvenient use and difficulty in pigging or transportation, they have not achieved successful application.
The purpose of the invention is to overcome the shortcomings of the prior art, and to
provide a shotcreting machine feeding device with compact structure, easy disassembly,
time-saving and labor-saving, and good effect.
The technical scheme adopted by the invention to solve the technical problem is as
follows: it comprises a mobile frame erected on a tramcar, a telescopic frame is arranged
on the mobile frame, a radial throwing mechanism is arranged on the upper part of the
telescopic frame, a spiral lifting mechanism is arranged on the radial throwing
mechanism, and the lower end of the spiral lifting mechanism is hinged with three
rotating and self rotating rotating axes of the spiral lifting mechanism at the same time.
One side of the radial throwing mechanism is provided with a worm gear driving
mechanism to lift the spiral lifting mechanism; the other side is provided with a
transmission mechanism connected with the gear of the worm gear transmission
mechanism and a batching mechanism connected with the power mechanism; The lower
part of the batching mechanism is provided with a discharge telescopic cylinder.
The moving frame consists of two pairs of rollers symmetrically placed on two side
walls of the mine car and two connecting shafts connecting the two pairs of rollers; The
material throwing mechanism consists of a material barrel with an inner hole in the middle, material mixing blades arranged in a cross-shaped asymmetric row in the material barrel, and a material barrel cover arranged on the feeding barrel; The spiral lifting mechanism consists of a stirring shaft, spiral blades arranged on the stirring shaft and a spiral shell arranged outside the spiral blades; The conical spiral material taking mechanism consists of a conical shell tube, a material taking screw obliquely fixed on the conical shell tube and an outer shell blade arranged at the head of the conical shell tube;
The transmission mechanism consists of a wind motor and an air cylinder; The worm
gear transmission mechanism consists of a screw fixed below the material throwing
mechanism, a worm bearing seat arranged on the screw, a worm wheel arranged on the
worm bearing seat and a worm matched with the worm wheel; The batching mechanism
consists of a batching bin and a large spiral blade and a small spiral blade which are
sequentially arranged in the batching bin, and the large spiral blade and the small spiral
blade are arranged on the same shaft directly driven by the power mechanism.
The feeding device disclosed by the invention integrates batching and feeding into a
whole, which can directly complete on-site batching and feeding of slurry used by a
shotcrete machine on an underground tunneling working face, solves the problems of
long-distance transportation and early solidification of prepared aggregate during
transportation.It saves the working procedure of manual stirring, and greatly improves the
speed and quality of shotcrete support. Moreover, it has compact structure, small size,
convenient disassembly and assembly, stable pulp composition, good working effect and
high production efficiency, and has wide practicability in the technical field
Fig. 1 is the front structural diagram of the present invention;
Fig. 2 is the left structural diagram of the present invention;
Fig. 3 is the structural diagram of the worm gear transmission mechanism of the
present invention;
Fig. 4 is the top view of the material taking mechanism of the present invention;
Fig. 5 is the sectional structural diagram taken along line a-a of Fig. 4;
Fig. 6 is the structural diagram of the displacement device of the present invention;
Fig. 7 is the structural diagram of the material throwing machine of the present
invention;
Fig. 8 is the top structural view of Fig. 7;
Fig. 9 is the structural diagram of the batching mechanism of the present invention.
Components in the drawings: 1-discharging telescopic cylinder; 2-batching
mechanism; 3-power mechanism; 4-spiral lifting mechanism; 5-conical spiral fetching
mechanism; 6-radial throwing mechanism; 7-telescopic frame; 8-moving frame; 9- worm
gear transmission mechanism; 10- mine car; 2-1-large spiral blade; 2-2- small spiral
blade; 4-1- stirring shaft; 4-2- spiral blade; 4-3- spiral shell; 5-1- material taking
screw; 5-2- cone shell tube; 5-3- outer blade of shell; 6-1- bucket cover; 6-2- mixing blade; 6-3- bucket; 9-1- worm; 9-2- worm gear; 9-3- screw; 9-4- worm bearing seat.
The embodiments of the present invention will be further described with reference to
the accompanying drawings:
The feeding device of the shotcrete machine shown in Fig. 1 is composed of a
discharging telescopic cylinder 1, a batching mechanism 2, a power mechanism 3, a
screw lifting mechanism 4, a conical screw material taking mechanism 5, a radial
material throwing mechanism 6, a telescopic frame 7 and a moving frame 8. The moving
frame 8 is composed of two pairs of rollers symmetrically placed on both sides of the
mine car 10 and two connecting shafts connecting the two pairs of rollers. The telescopic
frame 7 is symmetrically arranged on the two connecting shafts of the moving frame 8
through a moving sleeve and can move along the connecting shafts. A radial material
throwing mechanism 6 is arranged above the telescopic frame 7, and the material
throwing mechanism 6 is composed of a material barrel 6-3 with an inner hole in the
middle, material mixing blades 6-2 arranged in a cross-shaped asymmetric arrangement
in the material barrel 6-3, and a material barrel cover 6-1 arranged on the upper material
barrel 6-3.The radial material throwing mechanism 6 is installed at the upper end of the
main shaft of the spiral material lifting mechanism 4, which is composed of a stirring
shaft 4-1, a spiral blade 4-2 arranged on the stirring shaft 4-1 and a spiral shell 4-3
arranged outside the spiral blade 4-2. The stirring shaft 4-1 of the spiral lifting
-'7
mechanism 4 passes through the bucket 6-3 of the radial throwing mechanism 6 and is
connected with the transmission gear, and a bearing set is arranged between the
transmission gear and the bucket 6-3. The lower end of the spiral lifting mechanism 4 is
hinged with three conical spiral material taking mechanisms 5 which revolve around the
axis of the spiral lifting mechanism 4 and rotate at 120 degrees. The conical spiral
material taking mechanism 5 consists of a conical shell tube 5-2, a material taking screw
-1 obliquely fixed on the conical shell tube 5-2 and an outer shell blade 5-3 arranged at
the head of the conical shell tube 5-2. One side of the radial material throwing
mechanism 6 is provided with a worm gear transmission mechanism 9 for lifting the
vertical spiral material lifting mechanism 4. The worm gear transmission mechanism 9 is
composed of a screw 9-3 fixed below the material throwing mechanism 6, a worm
bearing seat 9-4 arranged on the screw 9-3, a worm gear 9-2 arranged on the worm
bearing seat 9-4 and a worm 9-1 matched with the worm gear 9-2. On the other side of
the radial throwing mechanism 6, a power mechanism 3 connected with a worm gear
transmission mechanism 9 and a batching mechanism 2 connected with the power
mechanism 3 are arranged, and a discharging telescopic cylinder 1 is arranged below the
batching mechanism 2. The batching system 2 consists of a batching bin and a large
spiral blade 2-1 and a small spiral blade 2-2 which are sequentially arranged in the
batching bin, and the large spiral blade 2-1 and the small spiral blade 2-2 are arranged on
the same shaft directly driven by the power mechanism 3. The power mechanism 3 is
composed of an air motor and an air cylinder to solve the explosion-proof problem used
underground. The wind motor of the power mechanism 3 drives the batching mechanism
2 and drives the bevel gear drive screw lifting mechanism 4 to rotate, and drives the worm gear drive mechanism 9 through the cylindrical gear fixedly connected with the bevel gear.
Working process: transporting shotcrete aggregate (yellow sand and gravel) to the
heading face by mine car 10, installing the feeding device on the mine car, then starting
the power mechanism 3 to drive the wind motor power to the main shaft of the screw
lifting mechanism 4 by bevel gear, and drive the conical screw material taking
mechanism 5 to pull the aggregate into the lower end of the screw lifting mechanism 4.
Then transporting the aggregate upward by the screw lifting mechanism 4 to the radial
material throwing mechanism 6, and the aggregate enters the distribution bin of the
batching mechanism 2 under the action of the material throwing mechanism 6. At the
same time, cement and accelerator are added from the hopper of the batching mechanism
2. The cement and accelerator which are proportional to aggregate are sent to the
batching bin by the small spiral blade 2-2 in the dosing machine mechanism 2 directly
driven by the wind motor, which are stirred and mixed evenly with aggregate by the large
spiral blade 2-1. Then they are fed to the shotrete machine by the discharge telescopic
cylinder 1. With the continuous feeding of the spiral feeding mechanism 4, the worm gear
transmission mechanism 9 connected with the spiral feeding mechanism 4 drives the
telescopic frame 7 to move downwards, and the moving frame 8 reciprocates along both
sides of the mine car 10 under the action of the air cylinder until the aggregate in the
mine car is emptied.
Claims (8)
1. The feeding device for a shotcrete machine, which is characterized by comprising
a moving frame (8), wherein the moving frame (8) is provided with a telescopic frame
(7), a radial material throwing mechanism (6) is arranged above the telescopic frame (7),
and a spiral material lifting mechanism (4) is arranged on the radial material throwing
mechanism (6). The lower end of the spiral material lifting mechanism (4) is hinged with
a simultaneous spiral material lifting mechanism. One side of the radial material throwing
mechanism (6) is provided with a worm gear transmission mechanism (9) for lifting the
straight spiral material lifting mechanism (4), while the other side is provided with a
power mechanism (3) connected with the worm gear transmission mechanism (9) and a
batching mechanism (2) connected with the power mechanism (3), and a discharging
telescopic cylinder (1) is arranged below the batching mechanism (2).
2. The feeding device of shotcrete machine according to claim 1, which is
characterized in that the moving frame (8) consists of two pairs of rollers symmetrically
riding on both sides of the mine car (10) and two connecting shafts connecting the two
pairs of rollers.
3. The feeding device of the shotcrete machine according to claim 1, which is
characterized in that the material throwing mechanism (6) consists of a material barrel (6
3) with an inner hole in the middle, material mixing blades (6-2) arranged in a cross
shaped asymmetric arrangement in the material barrel (6-3), and a material barrel cover
(6-1) arranged on the upper material barrel (6-3)
4. The feeding device of shotcrete machine according to claim 1, characterized in
that the screw lifting mechanism (4) is composed of a stirring shaft (4-1), a screw blade
(4-2) arranged on the stirring shaft (4-1) and a screw shell (4-3) arranged outside the
screw blade (4-2).
5. The feeding device of shotcrete machine according to claim 1, characterized in
that the conical spiral material taking mechanism (5) consists of a conical shell tube (5-2),
a material taking screw (5-1) obliquely fixed on the conical shell tube (5-2) and an outer
shell blade (5-3) arranged at the head of the conical shell tube (5-2).
6. The feeding device of the shotcrete machine according to claim 1, characterized in
that the power mechanism (3) consists of an air motor and an air cylinder.
7. The feeding device of shotcrete machine according to claim 1, characterized in
that the worm gear transmission mechanism (9) consists of a screw (9-3) fixed below the
material throwing mechanism (6), a worm bearing seat (9-4) arranged on a screw (9-3), a
worm wheel (9-2) arranged on a worm bearing seat (9-4) and a worm (9-1) matched with
the worm wheel (9-2).
8. The feeding device of the shotcrete machine according to claim 1, characterized in
that the batching mechanism (2) is composed of a batching bin and a large spiral blade
(2-1) and a small spiral blade (2-2) which are sequentially arranged in the batching bin,
and the large spiral blade (2-1) and the small spiral blade (2-2) are directly driven by the
power mechanism (3).
-1/8-
Figure 1
-2/8-
Figure 2
-3/8-
Figure 3
-4/8-
Figure 4
-5/8-
Figure 5
-6/8-
Figure 6
-7/8- 09 Nov 2020 2020103316
Figure 7
Figure 8
-8/8-
Figure 9
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU2020103316A AU2020103316A4 (en) | 2020-11-09 | 2020-11-09 | A feeding device for coal mine shotcreting machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU2020103316A AU2020103316A4 (en) | 2020-11-09 | 2020-11-09 | A feeding device for coal mine shotcreting machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AU2020103316A4 true AU2020103316A4 (en) | 2021-01-14 |
Family
ID=74103454
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AU2020103316A Ceased AU2020103316A4 (en) | 2020-11-09 | 2020-11-09 | A feeding device for coal mine shotcreting machine |
Country Status (1)
| Country | Link |
|---|---|
| AU (1) | AU2020103316A4 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113842830A (en) * | 2021-10-29 | 2021-12-28 | 湖南创大玉兔化工有限公司 | Titanium white powder processing is with making beating device |
| CN114856642A (en) * | 2022-06-15 | 2022-08-05 | 青岛纳控智能科技有限公司 | Automatic material loading whitewashing all-in-one |
| CN115446978A (en) * | 2022-09-14 | 2022-12-09 | 刘满 | Concrete production process |
| CN117266887A (en) * | 2023-11-17 | 2023-12-22 | 河南秋创建筑工程有限公司 | Complicated geology railway tunnel construction slip casting device |
-
2020
- 2020-11-09 AU AU2020103316A patent/AU2020103316A4/en not_active Ceased
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113842830A (en) * | 2021-10-29 | 2021-12-28 | 湖南创大玉兔化工有限公司 | Titanium white powder processing is with making beating device |
| CN114856642A (en) * | 2022-06-15 | 2022-08-05 | 青岛纳控智能科技有限公司 | Automatic material loading whitewashing all-in-one |
| CN115446978A (en) * | 2022-09-14 | 2022-12-09 | 刘满 | Concrete production process |
| CN115446978B (en) * | 2022-09-14 | 2024-02-20 | 潮州市潮安区阳光商品混凝土有限公司 | Concrete production process |
| CN117266887A (en) * | 2023-11-17 | 2023-12-22 | 河南秋创建筑工程有限公司 | Complicated geology railway tunnel construction slip casting device |
| CN117266887B (en) * | 2023-11-17 | 2024-02-06 | 河南秋创建筑工程有限公司 | Complicated geology railway tunnel construction slip casting device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FGI | Letters patent sealed or granted (innovation patent) | ||
| MK22 | Patent ceased section 143a(d), or expired - non payment of renewal fee or expiry |