CN110542751A - Variable-frequency variable-voltage pulse grouting device - Google Patents
Variable-frequency variable-voltage pulse grouting device Download PDFInfo
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- CN110542751A CN110542751A CN201910875836.9A CN201910875836A CN110542751A CN 110542751 A CN110542751 A CN 110542751A CN 201910875836 A CN201910875836 A CN 201910875836A CN 110542751 A CN110542751 A CN 110542751A
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
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Abstract
The invention discloses a variable-frequency variable-voltage pulse grouting device which comprises a barrel, wherein an upper cover is movably assembled on the barrel in a riveting mode, a grout inlet pipe is arranged on the upper cover in a through connection mode, a grouting pipe is further arranged at the lower end of one side of the barrel in a communicating mode, two groups of pressure control valves which limit opposite flow directions and are used for regulating pressure are further arranged on the upper cover in a connecting mode, the two groups of pressure control valves are communicated with the inside and the outside of the barrel, an exhaust fan and an air blower are respectively arranged at the upper ends of the two groups of pressure control valves in a communicating mode, a uniform structure used for stirring is further arranged in the barrel in a connecting mode, a valve structure used for controlling flow speed through rotation is further arranged in the grouting pipe, and the valve. The invention can control the discharge speed of the slurry by adjusting the driving speed of the second motor, can control the discharge speed of the slurry by selectively starting the exhaust fan or the blower, can flexibly discharge the slurry by matching, and can form a pulse grouting effect according to the requirement.
Description
Technical Field
The invention relates to the technical field of grouting cylinders, in particular to a variable-frequency variable-voltage pulse type grouting device.
Background
In two-dimensional and three-dimensional splitting grouting experiments of a soil body, the two-dimensional splitting crack condition of the soil body and the reinforcement condition of three-dimensional soil body splitting grouting need to be observed. The whole device realizes the control of grouting frequency and grouting pressure through a grouting pump, a grouting barrel and a faucet-shaped grouting valve.
The existing grouting equipment can realize grouting pressure control under constant pressure, but cannot provide stable grouting pressure during pulse grouting. Meanwhile, the grouting time and interval time of the existing pulse pressure are both more than 2 seconds, and the grouting pressure with higher frequency cannot be provided.
Disclosure of Invention
The invention aims to provide a variable-frequency variable-voltage pulse grouting device to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
The utility model provides a pulsed slip casting device of frequency conversion vary voltage, includes the barrel, be provided with the upper cover through riveting mode movable assembly on the barrel, and cover the through connection on and be provided with into thick liquid pipe, barrel one side lower extreme still communicates and is provided with the slip casting pipe, cover still to connect on and be provided with two sets of restriction flow direction opposite and be used for the accuse pressure valve of pressure regulating, two sets of accuse pressure valves all communicate inside and outside the barrel, and two sets of accuse pressure valves's upper end communicates respectively and is provided with air exhauster and air-blower, still connect in the barrel and be provided with the homogeneous structure that is used for the stirring, still be equipped with the valve structure through the rotation control velocity of flow in the slip casting pipe, valve structure is through the second motor drive operation.
Furthermore, the two sides of the lower end of the barrel are connected and supported through the base, a homogenizing structure is arranged in the middle of the barrel and comprises a spiral fan blade which is vertically connected to the middle of the barrel in a rotating mode and a first motor which is fixed to the lower end of the barrel and is connected with the spiral fan blade through an output end in a transmission mode.
Furthermore, the grouting pipe is an L-shaped bent metal pipeline, one end of the grouting pipe is communicated with the inside of the cylinder body, and the opening of the other end of the grouting pipe is downward; and a valve structure is arranged inside the grouting pipe at the bending position in a connecting manner.
Further, the valve structure includes that the pivot of rotation connection in the slip casting pipe and fixed connection are at the peripheral multiunit guide leaf of pivot, the transmission is connected to the output of pivot and second motor, and the pivot rotates and sets up the department of buckling in the slip casting pipe.
Furthermore, the guide blades are arc-shaped and are arranged on multiple groups of arc-shaped blades on the periphery of the rotating shaft in an annular array mode, the upper end face and the lower end face of each guide blade are movably attached to the inner wall of the rotating shaft, and cushion blocks attached to the inner wall of the grouting pipe are symmetrically arranged on the front side and the rear side of each guide blade.
Furthermore, the surface of the cushion block, which is opposite to the material guide leaves and movably attached to the material guide leaves, is an arc-shaped concave surface, and the circle center of the arc-shaped concave surface is coincided with the axis of the rotating shaft.
Furthermore, the pressure control valve is composed of an air duct which is embedded and fixed in the upper cover and a plugging structure which is elastically connected in the air duct, a fixing support is fixedly connected to one end of the air duct, and the fixing support is connected with the plugging structure through an elastic piece.
Further, the plugging structure comprises a sliding support which is arranged in the air duct in a sliding fit mode and a sealing gasket which is connected and arranged through a connecting rod, the size of the sealing gasket is matched with the size of the tail end peripheral size of the air duct, the sealing gasket is attached to the opposite side face of the tail end of the air duct and provided with a soft cushion layer, and the sealing gasket is movably attached to the end face of the air duct when the elastic piece does not have external force.
Furthermore, the fixed support and the sliding support are both of a cross structure.
Furthermore, the sealing gaskets in the two groups of pressure control valves are respectively positioned above and below the upper cover, the upper end of the air duct positioned above the upper cover of the sealing gaskets is communicated with the air inlet end of the exhaust fan, and the upper end of the air duct positioned below the upper cover of the sealing gaskets is communicated with the air outlet end of the air blower.
Compared with the prior art, the invention has the beneficial effects that: after the slurry enters the cylinder body through the slurry inlet pipe, the first motor is started to drive the spiral fan blades to be homogenized so as to maintain the flowability, the second motor is started to drive the rotating shaft to rotate, so that the guide blades synchronously rotate and guide the slurry out, the driving speed of the second motor can be adjusted according to requirements, the discharge speed of the slurry is improved, the structure is simple, the adjusting mode is convenient, and compared with a conventional ball valve, the problem that the slurry cannot be discharged due to the rapid rotation of the conventional ball valve can be solved; when needed, an exhaust fan or an air blower is selected to be started, the exhaust fan can be started to reduce the air pressure in the cylinder body so as to reduce the discharge speed of the slurry, and the air blower is started to improve the air pressure in the cylinder body so as to improve the discharge speed of the slurry; through the cooperation of slip casting pipe and second motor and the cooperation of accuse pressure valve and air exhauster and air-blower, can realize nimble adjustable slip casting mode finally, and can form the slip casting effect of pulsed as required, and can provide higher and controllable slip casting frequency when impulse type slip casting, cooperate the regulation of atmospheric pressure to obtain the technological effect of frequency conversion vary voltage.
Drawings
Fig. 1 is a schematic structural diagram of a variable-frequency variable-voltage pulse grouting device.
Fig. 2 is a schematic structural diagram of a grouting pipe in a variable-frequency variable-voltage pulse grouting device.
Fig. 3 is a schematic sectional view taken along the line a in fig. 2.
Fig. 4 is a schematic structural diagram of a pressure control valve in a variable-frequency variable-pressure pulse grouting device.
Fig. 5 is a schematic structural diagram of a plugging structure in a variable-frequency variable-voltage pulse grouting device.
In the figure: 1-cylinder body, 2-upper cover, 3-pulp inlet pipe, 4-first motor, 5-grouting pipe, 51-rotating shaft, 52-guide vane, 53-cushion block, 6-second motor, 7-pressure control valve, 71-air duct, 72-fixed support, 73-sliding support, 74-elastic piece, 75-connecting rod, 76-sealing gasket, 8-spiral fan blade, 9-base, 10-exhaust fan and 11-blower.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
Referring to fig. 1 to 3, in the embodiment of the invention, a variable-frequency variable-voltage pulse grouting device comprises a cylinder body 1, an upper cover 2 is movably assembled on the cylinder body 1 in a riveting manner, a slurry inlet pipe 3 is arranged on the upper cover 2 in a through connection mode, a grouting pipe 5 is further arranged at the lower end of one side of the cylinder body 1 in a communication manner, two groups of pressure control valves 7 for limiting flow directions to be opposite and regulating pressure are further arranged on the upper cover 2 in a connection manner, the two groups of pressure control valves 7 are both communicated with the inside and the outside of the cylinder body 1, the upper ends of the two groups of pressure control valves 7 are respectively communicated with an exhaust fan 10 and an air blower 11, a homogeneous structure for stirring is further arranged in the cylinder body 1 in a connection manner, a valve structure for controlling flow velocity through rotation is further arranged in the grouting pipe 5, and the valve.
The utility model discloses a cylinder, including barrel 1, base 9, even structure, first motor 4, even structure includes that the perpendicular rotation connects the spiral flabellum 8 at the middle part in barrel 1 and fixes at 1 lower extreme of barrel and connect driven first motor 4 through output and spiral flabellum 8 in barrel 1, can drive spiral flabellum 8 and rotate after first motor 4 starts to make the thick liquids that enter into barrel 1 promote even, thereby do benefit to and maintain the mobility of guaranteeing thick liquids, spiral flabellum 8 is the Archimedes screw structure of stainless steel material.
The slurry inlet pipe 3 is used for injecting slurry, and a sealing cover which is movably assembled is further arranged on the slurry inlet pipe 3.
The grouting pipe 5 is an L-shaped bent metal pipeline, one end of the grouting pipe 5 is communicated with the inside of the cylinder body 1, and the other end of the grouting pipe is opened downwards; and a valve structure is arranged inside the bent position in the grouting pipe 5 in a connected mode.
The valve structure comprises a rotating shaft 51 rotatably connected in the grouting pipe 5 and a plurality of groups of material guide vanes 52 fixedly connected to the periphery of the rotating shaft 51, the rotating shaft 51 is connected with the output end of the second motor 6 for transmission, and the rotating shaft 51 is rotatably arranged at the inner bending part of the grouting pipe 5; guide leaf 52 is curved and is the annular array setting at pivot 51 outlying multiunit arc blade for the arc, the terminal surface all is the activity laminating with pivot 51 inner wall about guide leaf 52, both sides still symmetry is provided with the laminating around the guide leaf 52 and fixes the cushion 53 at slip casting 5 inner walls, the relative and face of activity laminating of cushion 53 and guide leaf 52 is the arc concave surface, and the centre of a circle and the coincidence of pivot 51 axle center of arc concave surface, guide leaf 52 cooperation cushion 53 can form the shutoff to the material when static, can drop the leading-in and perpendicular buckle position from slip casting 5 of material through guide leaf 52 when rotating, and the discharge velocity of thick liquids also can be controlled in the improvement of rotational speed.
Such design can make the thick liquids enter into barrel 1 back through advancing thick liquid pipe 3, start first motor 4 and drive helical fan blade 8 and carry out the homogenization in order to maintain mobility, start second motor 6 and drive pivot 51 and rotate, thereby guide leaf 52 rotates in step and derives thick liquids, can adjust the drive speed of second motor 6 according to the demand, thereby improve the discharge rate of thick liquids, simple structure and regulation mode are convenient, for conventional ball valve, can avoid because of the unable discharged problem of thick liquids of conventional ball valve fast turn.
Example 2
Referring to fig. 4 to 5, in an embodiment of the present invention, on the basis of embodiment 1, the pressure control valve 7 is composed of an air duct 71 embedded and fixed in the upper cover 2 and a blocking structure elastically connected in the air duct 71, one end of the air duct 71 is fixedly connected with a fixing bracket 72, and the fixing bracket 72 is connected with the blocking structure through an elastic member 74; the plugging structure comprises a sliding support 73 arranged in the air duct 71 in a sliding fit manner and a sealing gasket 76 connected and arranged through a connecting rod 75, the fixed support 72 and the sliding support 73 are of a cross structure, the size of the sealing gasket 76 is matched with the size of the tail end of the air duct 71, the sealing gasket 76 is attached to the opposite side face of the tail end of the air duct 71 and provided with a cushion layer, and the sealing gasket 76 is movably attached to the end face of the air duct 71 when the elastic piece 74 has no external force.
The sealing gaskets 76 in the two groups of pressure control valves 7 are respectively positioned above and below the upper cover 2, wherein the upper end of the air duct 71 of the sealing gasket 76 positioned above the upper cover 2 is communicated with the air inlet end of the exhaust fan 10, and the upper end of the air duct 71 of the sealing gasket 76 positioned below the upper cover 2 is communicated with the air outlet end of the air blower 11, so that the exhaust fan 10 or the air blower 11 can be selectively started when needed, the exhaust fan 10 can be started to reduce the air pressure in the barrel 1, thereby reducing the discharge speed of the slurry, and the air blower 11 can be started to improve the air pressure in the barrel 1, thereby improving the.
The working principle of the invention is as follows: after the slurry enters the cylinder body 1 through the slurry inlet pipe 3, the first motor 4 is started to drive the spiral fan blades 8 to be homogenized so as to maintain the fluidity, the second motor 6 is started to drive the rotating shaft 51 to rotate, so that the guide blades 52 synchronously rotate and guide the slurry out, the driving speed of the second motor 6 can be adjusted according to requirements, the discharge speed of the slurry is improved, the structure is simple, the adjusting mode is convenient, and compared with a conventional ball valve, the problem that the slurry cannot be discharged due to the rapid rotation of the conventional ball valve can be solved; when needed, the exhaust fan 10 or the blower 11 is selected to be started, the exhaust fan 10 is started to reduce the air pressure in the barrel body 1 so as to reduce the discharge speed of the slurry, and the blower 11 is started to increase the air pressure in the barrel body 1 so as to increase the discharge speed of the slurry.
The standard parts used in the invention can be purchased from the market, the special-shaped parts can be customized according to the description of the specification and the accompanying drawings, the specific connection mode of each part adopts conventional means such as bolts, rivets, welding and the like mature in the prior art, the machines, the parts and equipment adopt conventional models in the prior art, and the circuit connection adopts the conventional connection mode in the prior art, so that the detailed description is omitted.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (10)
1. a variable-frequency variable-voltage pulse grouting device comprises a cylinder body (1), wherein an upper cover (2) is movably assembled on the cylinder body (1) in a riveting mode, a grout inlet pipe (3) is arranged on the upper cover (2) in a run-through connection mode, a grouting pipe (5) is also arranged at the lower end of one side of the cylinder body (1) in a run-through connection mode, it is characterized in that the upper cover (2) is also connected with two groups of pressure control valves (7) which limit the flow direction to be opposite and are used for regulating pressure, the two groups of pressure control valves (7) are communicated with the inside and the outside of the cylinder body (1), the upper ends of the two groups of pressure control valves (7) are respectively communicated with an exhaust fan (10) and a blower (11), a homogeneous structure for stirring is also connected and arranged in the cylinder body (1), a valve structure for controlling the flow rate through rotation is also arranged in the grouting pipe (5), the valve structure is driven to operate by a second motor (6) connected to the grouting pipe (5).
2. The variable-frequency and variable-voltage pulse type grouting device as claimed in claim 1, wherein two sides of the lower end of the cylinder (1) are connected and supported through a base (9), a homogeneous structure is installed in the middle of the inside of the cylinder (1), and the homogeneous structure comprises a spiral fan blade (8) which is vertically and rotatably connected to the middle of the inside of the cylinder (1) and a first motor (4) which is fixed at the lower end of the cylinder (1) and is connected with the spiral fan blade (8) through an output end for transmission.
3. The variable-frequency variable-voltage pulse type grouting device according to claim 1, wherein the grouting pipe (5) is an L-shaped bent metal pipeline, one end of the grouting pipe (5) is communicated with the inside of the cylinder body (1), and the other end of the grouting pipe is opened downwards; and a valve structure is arranged in the bent position inside the grouting pipe (5).
4. The variable-frequency and variable-voltage pulse type grouting device according to claim 3, wherein the valve structure comprises a rotating shaft (51) rotatably connected in the grouting pipe (5) and a plurality of groups of material guide vanes (52) fixedly connected to the periphery of the rotating shaft (51), the rotating shaft (51) is in transmission connection with the output end of the second motor (6), and the rotating shaft (51) is rotatably arranged at the inner bent part of the grouting pipe (5).
5. The variable-frequency and variable-voltage pulse type grouting device according to claim 4, wherein the material guide vanes (52) are arc-shaped curved and are arranged in a ring array on a plurality of groups of arc-shaped blades on the periphery of the rotating shaft (51), the upper end surface and the lower end surface of each material guide vane (52) are movably attached to the inner wall of the rotating shaft (51), and cushion blocks (53) attached and fixed to the inner wall of the grouting pipe (5) are symmetrically arranged on the front side and the rear side of each material guide vane (52).
6. The variable-frequency and variable-voltage pulse type grouting device as claimed in claim 5, wherein the opposite and movably attached surfaces of the cushion block (53) and the material guide blade (52) are arc-shaped concave surfaces, and the circle center of each arc-shaped concave surface is coincided with the axis of the rotating shaft (51).
7. The variable-frequency and variable-voltage pulse type grouting device according to claim 1, wherein the pressure control valve (7) consists of an air guide pipe (71) embedded and fixed in the upper cover (2) and a blocking structure elastically connected in the air guide pipe (71), one end of the air guide pipe (71) is fixedly connected with a fixing support (72), and the fixing support (72) is connected with the blocking structure through an elastic piece (74).
8. The variable-frequency and variable-voltage pulse type grouting device according to claim 7, wherein the blocking structure comprises a sliding support (73) which is arranged in the air guide pipe (71) in a sliding fit manner and a sealing gasket (76) which is connected and arranged through a connecting rod (75), the size of the sealing gasket (76) is matched with the size of the periphery of the tail end of the air guide pipe (71), the opposite side surfaces of the tail end of the air guide pipe (71) and the sealing gasket (76) are provided with cushion layers in an attached manner, and the sealing gasket (76) is movably attached to the end surface of the air guide pipe (71) when the elastic piece (74) has no external force.
9. A variable frequency and variable voltage pulse grouting device as claimed in claim 7 or 8, characterized in that the fixed support (72) and the sliding support (73) are both cross-shaped structures.
10. The variable-frequency and variable-voltage pulse grouting device according to claim 8, wherein the sealing gaskets (76) in the two groups of pressure control valves (7) are respectively positioned above and below the upper cover (2), wherein the upper ends of the air guide pipes (71) positioned above the upper cover (2) of the sealing gaskets (76) are communicated with the air inlet end of the exhaust fan (10), and the upper ends of the air guide pipes (71) positioned below the upper cover (2) of the sealing gaskets (76) are communicated with the air outlet end of the air blower (11).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910875836.9A CN110542751B (en) | 2019-09-17 | 2019-09-17 | Variable-frequency variable-voltage pulse grouting device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910875836.9A CN110542751B (en) | 2019-09-17 | 2019-09-17 | Variable-frequency variable-voltage pulse grouting device |
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| CN110542751A true CN110542751A (en) | 2019-12-06 |
| CN110542751B CN110542751B (en) | 2020-07-14 |
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Cited By (2)
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| CN111119187A (en) * | 2020-01-07 | 2020-05-08 | 中国地质大学（北京） | Fine sand layer high frequency low pressure gas of powder splits formula slip casting device in advance |
| CN113219156A (en) * | 2021-05-11 | 2021-08-06 | 四川大学 | Air-extracting negative-pressure biological slurry filling device suitable for adhesive soil column and grouting method |
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| CN111119187B (en) * | 2020-01-07 | 2020-10-23 | 中国地质大学（北京） | Fine sand layer high frequency low pressure gas of powder splits formula slip casting device in advance |
| CN113219156A (en) * | 2021-05-11 | 2021-08-06 | 四川大学 | Air-extracting negative-pressure biological slurry filling device suitable for adhesive soil column and grouting method |
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| Publication number | Publication date |
|---|---|
| CN110542751B (en) | 2020-07-14 |
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