CN210218013U - Hydraulic double-liquid grouting pump - Google Patents
Hydraulic double-liquid grouting pump Download PDFInfo
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- CN210218013U CN210218013U CN201921218973.7U CN201921218973U CN210218013U CN 210218013 U CN210218013 U CN 210218013U CN 201921218973 U CN201921218973 U CN 201921218973U CN 210218013 U CN210218013 U CN 210218013U
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Abstract
The utility model provides a hydraulic pressure biliquid grouting pump, the plunger moves left, and the thick liquid jar produces the negative pressure inside, is influenced by the negative pressure, and flexible thick liquid absorbing valve core is opened, and flexible thick liquid discharging valve core is pressed by the negative pressure and is closed fast under the promotion of compression spring simultaneously, and thick liquid is inhaled to the thick liquid jar by inhaling the thick liquid mouth; the plunger moves rightwards, the slurry in the slurry cylinder is extruded to generate pressure, the flexible slurry suction valve core is rapidly closed under the pushing of liquid pressure and a compression spring, meanwhile, the flexible slurry discharge valve core is opened under the pushing of the slurry, the slurry is discharged from the slurry discharge port, and one-time slurry suction and discharge is completed; adopt the utility model discloses an inhale thick liquid, arrange thick liquid sealed check valve and not only improved efficiency, the steel ball seal structure that the relative prior art in life adopted has increased 3-5 times, and this structure passes through flexonics, compression spring buffering boosting, has reduced the noise, adopts the utility model discloses a V type end face seal circle's sealing pressure can reach 85Mpa at most, satisfies the slip casting operation demand that is higher than 30 MPa.
Description
Technical Field
The utility model belongs to the technical field of industrial and mining machinery, especially, hydraulic pressure biliquid grouting pump.
Background
The hydraulic double-liquid grouting pump for coal mine (hereinafter referred to as grouting pump) is used for accurately injecting easily solidified substances or mixture into cracks and cavities of rock strata or soil by using pressure so as to achieve the purposes of reducing water seepage and consolidating the rock strata and the soil. The method is mainly suitable for coal mine containing gas, well construction and underground waterproof engineering, and can also be used for tunnel excavation and maintenance, foundation treatment for building dams, large bridges and high-rise buildings, various underground engineering and the like.
The reinforcing and grouting of the mountain tunnel construction is mainly realized by a grouting pump, and the surrounding rock is supported by using a grouting operation method, so that the phenomena of stratum settlement and serious leakage above the tunnel and on the tunnel face are prevented. The pressure of the grouting pump in China is generally 10-20MPa at present, which cannot guarantee the stability of the tunnel excavation surface, and the influence of underground water and mudstone on the stability of the excavation surface cannot be reliably controlled, so that a grouting pump with higher pressure level needs to be researched.
At present, a domestic grouting pump generally adopts a piston structure, and the end face sealing form is generally O-shaped ring sealing.
At present, the grouting pump adopting a piston structure and a plunger structure cannot meet the grouting operation higher than 30MPa due to the limitation of the structure and the end face sealing form;
at present, the structure of the slurry suction and discharge check valve is generally in a sealing form of a steel ball, a valve seat and a valve cover, although the structure has good sealing performance, strong impact is generated when the structure falls back under a high-pressure state to cause serious damage to the valve seat, the service life is short, the check valve is frequently replaced in the operation process, time and labor are consumed, the maintenance cost is increased, and the grouting progress is influenced.
SUMMERY OF THE UTILITY MODEL
In view of the above-mentioned shortcomings of the prior art, it is an object of the present invention to provide a hydraulic dual-fluid grouting pump.
In order to realize the purpose of the utility model, the utility model discloses technical scheme as follows:
a hydraulic dual fluid grouting pump comprising: the hydraulic grouting device comprises an oil cylinder, a hydraulic loop, a reversing mechanism and a transversely arranged slurry cylinder 6, wherein the right end of the slurry cylinder 6 is connected with a longitudinally arranged small cylinder cover 14, the oil cylinder drives a plunger 1 to transversely move in the slurry cylinder 6 through a reciprocating piston rod, a large cylinder cover 4 is sleeved outside the middle section of the plunger 1, the end surface of the slurry cylinder 6 and the large cylinder cover 4 are sealed by a first V-shaped end surface sealing ring 5, a sealing gland 2 is arranged on the left side of the large cylinder cover 4, a V-shaped combined sealing ring 3 is arranged between the plunger 1 and the large cylinder cover 4 on the right side of the sealing gland 2, a grouting channel is arranged inside the small cylinder cover, the bottom of the grouting channel is communicated with a slurry suction port 16, the top of the grouting channel is communicated with a slurry discharge port 7, a slurry suction sealing one-way valve is arranged below the grouting channel, when the slurry suction sealing one-way valve is opened, slurry is sucked into the slurry cylinder 6 through the slurry, a grout discharging sealing one-way valve is arranged above the inner part of the grouting channel, grout in the grout cylinder 6 is discharged from the grout discharging port 7 when the grout discharging sealing one-way valve is opened, and a second V-shaped end face sealing ring 11 is adopted for sealing between the grouting channel and the small cylinder cover 14;
the slurry suction sealing one-way valve comprises a valve seat 13 at the bottom, a flexible slurry suction valve core 15 movably arranged in a cavity in the valve seat 13, and a valve cover 9 above the flexible slurry suction valve core 15, wherein a compression spring 10 is sleeved outside the flexible slurry suction valve core 15, and the flexible slurry suction valve core is made of flexible materials;
the slurry discharging sealing one-way valve comprises a valve seat 13 at the bottom, a flexible slurry discharging valve core 12 movably arranged in a cavity in the valve seat 13, and a valve cover 9 above the flexible slurry discharging valve core 12, wherein a compression spring 10 is sleeved outside the flexible slurry discharging valve core 12, and the flexible slurry discharging valve core is made of flexible materials;
the first V-shaped end face seal ring 5 and the second V-shaped end face seal ring 11 are made of flexible materials, and the left end and the right end of each V-shaped end face seal ring are symmetrical V-shaped seal parts 17; the V-shaped sealing part is a flexible pressure contact surface, the contact is tighter when the grouting pressure is larger, the sealing effect is ensured by utilizing the pressure, and the V-shaped end surface sealing ring adopting the structure and the material can bear the grouting pressure of 40 Mpa.
The V-shaped combined sealing ring 3 is a plurality of V-shaped sealing rings which are transversely and tightly stacked.
Preferably, the flexible slurry suction valve core 15 and the flexible slurry discharge valve core 12 are both polyurethane valve cores.
Preferably, the first V-shaped end face seal ring 5 and the second V-shaped end face seal ring are both polyurethane seal rings.
Preferably, the flexible slurry discharge valve core 12 is guided by the rubber guide sleeve 8.
The hydraulic oil pump is characterized by further comprising a motor, the motor drives the plunger pump to rotate through the coupler, hydraulic oil in the oil tank is sucked into the plunger pump, and discharged high-pressure oil is sent into the oil cylinder through the overflow valve, the reversing valve and the high-pressure oil pipe to push the piston rod and the plunger to reciprocate.
Preferably, the reversing mechanism is of an electromagnetic induction type and comprises a position inductor and an electromagnetic reversing valve, wherein the position inductor is arranged on the plunger, and the inductor is electrically connected with the electromagnetic reversing valve of the reversing mechanism.
As a preferred mode, the oil cylinder is connected with a water cooler through an oil return pipe of the reversing valve, and the water cooler is connected with an oil tank.
Preferably, the plunger, the piston rod, and the seal ring in the slurry cylinder are manufactured separately.
The slurry suction and discharge method using the hydraulic double-liquid grouting pump comprises the following steps: the plunger moves leftwards along with the piston rod of the oil cylinder, negative pressure is generated inside the slurry cylinder and is influenced by the negative pressure, the flexible slurry suction valve core is opened, meanwhile, the flexible slurry discharge valve core is quickly closed under the pushing of the compression spring under the negative pressure, slurry is sucked into the slurry cylinder through the slurry suction port, when the plunger moves leftwards to the limit, the flexible slurry suction valve core is reversed to move rightwards through the reversing valve, the slurry in the slurry cylinder is squeezed to generate pressure, the flexible slurry suction valve core is quickly closed under the pushing of liquid pressure and the compression spring, meanwhile, the flexible slurry discharge valve core is opened under the pushing of the slurry, the slurry is discharged through the slurry discharge port, and one-time slurry suction and discharge is completed.
The utility model has the advantages that:
(1) the noise that the check valve inhales under the high pressure state and arranges the thick liquid is higher relatively, and the impact force is great, and continuous use can influence the sealed effect of check valve and life under this condition, adopts the utility model discloses an inhale thick liquid, arrange the sealed check valve of thick liquid and not only improved efficiency, the steel ball seal structure that the life-span adopted relative prior art has increased 3-5 times, has solved high noise and high impact force problem under the high pressure, and this structure is through flexible contact, compression spring buffering boosting, has reduced the noise, has improved sealing performance.
(2) The O type circle sealing form pressure that adopts among the prior art is less than or equal to 30MPa, adopts the utility model discloses a V type end face seal's sealing pressure can reach 85MPa the most, satisfies the slip casting operation demand that is higher than 30 MPa.
(3) The grouting pump is a full-hydraulic single-fluid and double-fluid dual-purpose grouting pump with adjustable pressure. Has the characteristics of small volume, light weight, flexibility, reliability, wide application and the like. The working medium is water, cement paste, water glass, etc.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic structural view of a slurry discharge sealing check valve;
FIG. 3 is a schematic structural diagram of a V-shaped end face seal ring;
the sealing structure comprises a plunger 1, a sealing gland 2, a V-shaped combined sealing ring 3, a large cylinder cover 4, a first V-shaped end face sealing ring 5, a slurry cylinder 6, a slurry discharge port 7, a rubber guide sleeve 8, a valve cover 9, a compression spring 10, a second V-shaped end face sealing ring 11, a flexible slurry discharge valve core 12, a valve seat 13, a small cylinder cover 14, a flexible slurry suction valve core 15, a slurry suction port 16 and a V-shaped sealing portion 17.
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will be readily apparent to those skilled in the art from the disclosure herein. The present invention can also be implemented or applied through other different specific embodiments, and various details in the present specification can be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention.
Example 1
As shown in fig. 1, a hydraulic dual fluid grouting pump includes: the hydraulic grouting device comprises an oil cylinder, a hydraulic loop, a reversing mechanism and a transversely arranged slurry cylinder 6, wherein the right end of the slurry cylinder 6 is connected with a longitudinally arranged small cylinder cover 14, the oil cylinder drives a plunger 1 to transversely move in the slurry cylinder 6 through a reciprocating piston rod, a large cylinder cover 4 is sleeved outside the middle section of the plunger 1, the end surface of the slurry cylinder 6 and the large cylinder cover 4 are sealed by a first V-shaped end surface sealing ring 5, a sealing gland 2 is arranged on the left side of the large cylinder cover 4, a V-shaped combined sealing ring 3 is arranged between the plunger 1 and the large cylinder cover 4 on the right side of the sealing gland 2, a grouting channel is arranged inside the small cylinder cover, the bottom of the grouting channel is communicated with a slurry suction port 16, the top of the grouting channel is communicated with a slurry discharge port 7, a slurry suction sealing one-way valve is arranged below the grouting channel, when the slurry suction sealing one-way valve is opened, slurry is sucked into the slurry cylinder 6 through the slurry, a grout discharging sealing one-way valve is arranged above the inner part of the grouting channel, grout in the grout cylinder 6 is discharged from the grout discharging port 7 when the grout discharging sealing one-way valve is opened, and a second V-shaped end face sealing ring 11 is adopted for sealing between the grouting channel and the small cylinder cover 14;
the slurry suction sealing one-way valve comprises a valve seat 13 at the bottom, a flexible slurry suction valve core 15 movably arranged in a cavity in the valve seat 13, and a valve cover 9 above the flexible slurry suction valve core 15, wherein a compression spring 10 is sleeved outside the flexible slurry suction valve core 15, and the flexible slurry suction valve core is made of flexible materials;
as shown in fig. 2, the slurry discharging sealing one-way valve comprises a valve seat 13 at the bottom, a flexible slurry discharging valve core 12 movably arranged in a cavity inside the valve seat 13, and a valve cover 9 above the flexible slurry discharging valve core 12, wherein a compression spring 10 is sleeved outside the flexible slurry discharging valve core 12, and the flexible slurry discharging valve core is made of a flexible material;
as shown in fig. 3, the first V-shaped end face seal ring 5 and the second V-shaped end face seal ring 11 are both made of flexible materials, and the left and right ends of the V-shaped end face seal rings 5 and 11 are symmetrical V-shaped seal portions 17; the V-shaped sealing part is a flexible pressure contact surface, the contact is tighter when the grouting pressure is larger, the sealing effect is ensured by utilizing the pressure, and the V-shaped end surface sealing ring adopting the structure and the material can bear the grouting pressure of 40 Mpa.
The V-shaped combined sealing ring 3 is a plurality of V-shaped sealing rings which are transversely and tightly stacked.
Specifically, the flexible slurry suction valve core 15 and the flexible slurry discharge valve core 12 are both polyurethane valve cores.
Specifically, the first V-shaped end face seal ring 5 and the second V-shaped end face seal ring are both polyurethane seal rings.
Specifically, the flexible slurry discharge valve core 12 is guided by the rubber guide sleeve 8.
The hydraulic oil pump is characterized by further comprising a motor, the motor drives the plunger pump to rotate through the coupler, hydraulic oil in the oil tank is sucked into the plunger pump, and discharged high-pressure oil is sent into the oil cylinder through the overflow valve, the reversing valve and the high-pressure oil pipe to push the piston rod and the plunger to reciprocate.
Specifically, the reversing mechanism is of an electromagnetic induction type and comprises a position inductor and an electromagnetic reversing valve, wherein the position inductor is arranged on the plunger, and the inductor is electrically connected with the electromagnetic reversing valve of the reversing mechanism.
Specifically, the oil cylinder is connected with a water cooler through an oil return pipe of the reversing valve, and the water cooler is connected with an oil tank.
Specifically, the plunger, the piston rod and the sealing ring in the slurry cylinder are manufactured in a split mode.
The utility model discloses a theory of operation does: when the plunger moves leftwards along with the piston rod of the oil cylinder, negative pressure is generated inside the slurry cylinder and is influenced by the negative pressure, the flexible slurry suction valve core is opened, meanwhile, the flexible slurry discharge valve core is quickly closed under the pushing of the compression spring under the negative pressure, slurry is sucked into the slurry cylinder through the slurry suction port, when the plunger moves leftwards to the limit, the flexible slurry suction valve core is reversed to move rightwards through the reversing valve, the slurry in the slurry cylinder is extruded to generate pressure, the flexible slurry suction valve core is quickly closed under the pushing of the liquid pressure and the compression spring, meanwhile, the flexible slurry discharge valve core is opened under the pushing of the slurry, the slurry is discharged from the slurry discharge port, and one-time slurry suction and discharge are completed.
The slurry suction and discharge method using the hydraulic double-liquid grouting pump comprises the following steps: the plunger moves leftwards along with the piston rod of the oil cylinder, negative pressure is generated inside the slurry cylinder and is influenced by the negative pressure, the flexible slurry suction valve core is opened, meanwhile, the flexible slurry discharge valve core is quickly closed under the pushing of the compression spring under the negative pressure, slurry is sucked into the slurry cylinder through the slurry suction port, when the plunger moves leftwards to the limit, the flexible slurry suction valve core is reversed to move rightwards through the reversing valve, the slurry in the slurry cylinder is squeezed to generate pressure, the flexible slurry suction valve core is quickly closed under the pushing of liquid pressure and the compression spring, meanwhile, the flexible slurry discharge valve core is opened under the pushing of the slurry, the slurry is discharged through the slurry discharge port, and one-time slurry suction and discharge is completed.
The above embodiments are merely illustrative of the principles and effects of the present invention, and are not to be construed as limiting the invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (8)
1. A hydraulic dual fluid grouting pump, comprising: the hydraulic cylinder, the hydraulic circuit, the reversing mechanism, the thick liquid jar (6) that transversely sets up, the small cylinder cap (14) that vertically sets up is connected to thick liquid jar (6) right-hand member, the piston rod that the hydro-cylinder passed through reciprocating motion drives plunger (1) lateral motion in thick liquid jar (6), big cylinder cap (4) are established to the middle section outside cover of plunger (1), adopt first V type terminal surface sealing washer (5) to seal between the terminal surface of thick liquid jar (6) and big cylinder cap (4), big cylinder cap (4) left side is sealing gland (2), adopt V type combination sealing washer (3) to seal between plunger (1) and big cylinder cap (4) on sealing gland (2) right side, the inside of small cylinder cap is equipped with the slip casting passageway, the bottom and the thick liquid mouth (16) of slip casting passageway communicate, the top and the row of slip casting passageway communicate (7), the inside below of slip casting passageway is equipped with inhales the sealed check valve of thick liquid, when the slurry suction sealing one-way valve is opened, slurry is sucked into the slurry cylinder (6) through the slurry suction port (16), the middle section of the grouting channel is communicated with the slurry cylinder (6), a slurry discharge sealing one-way valve is arranged above the inside of the grouting channel, when the slurry discharge sealing one-way valve is opened, the slurry in the slurry cylinder (6) is discharged through the slurry discharge port (7), and a second V-shaped end face sealing ring (11) is adopted for sealing between the grouting channel and the small cylinder cover (14);
the slurry suction sealing one-way valve comprises a valve seat (13) at the bottom, a flexible slurry suction valve core (15) movably arranged in a cavity in the valve seat (13), and a valve cover (9) above the flexible slurry suction valve core (15), wherein a compression spring (10) is sleeved outside the flexible slurry suction valve core (15), and the flexible slurry suction valve core is made of a flexible material;
the slurry discharging sealing one-way valve comprises a valve seat (13) at the bottom, a flexible slurry discharging valve core (12) movably arranged in a cavity in the valve seat (13), and a valve cover (9) above the flexible slurry discharging valve core (12), wherein a compression spring (10) is sleeved outside the flexible slurry discharging valve core (12), and the flexible slurry discharging valve core is made of a flexible material;
the first V-shaped end face sealing ring (5) and the second V-shaped end face sealing ring (11) are made of flexible materials, and the left end and the right end of each V-shaped end face sealing ring (5) and each V-shaped end face sealing ring (11) are symmetrical V-shaped sealing parts (17);
the V-shaped combined sealing rings (3) are a plurality of V-shaped sealing rings which are transversely and tightly stacked.
2. The hydraulic dual fluid grouting pump of claim 1, wherein: the flexible slurry suction valve core (15) and the flexible slurry discharge valve core (12) are both polyurethane valve cores.
3. The hydraulic dual fluid grouting pump of claim 1, wherein: the first V-shaped end face seal ring (5) and the second V-shaped end face seal ring are both polyurethane seal rings.
4. The hydraulic dual fluid grouting pump of claim 1, wherein: the flexible slurry discharge valve core (12) is guided by the rubber guide sleeve (8).
5. The hydraulic dual fluid grouting pump of claim 1, wherein: the motor drives the plunger pump to rotate through the coupler.
6. The hydraulic dual fluid grouting pump of claim 1, wherein: the reversing mechanism is of an electromagnetic induction type and comprises a position inductor and an electromagnetic reversing valve, wherein the position inductor is arranged on the plunger, and the inductor is electrically connected with the electromagnetic reversing valve of the reversing mechanism.
7. The hydraulic dual fluid grouting pump of claim 1, wherein: the oil cylinder is connected with a water cooler through an oil return pipe of the reversing valve, and the water cooler is connected with an oil tank.
8. The hydraulic dual fluid grouting pump of claim 1, wherein: the plunger, the piston rod and the sealing ring in the slurry cylinder are manufactured in a split way.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921218973.7U CN210218013U (en) | 2019-07-31 | 2019-07-31 | Hydraulic double-liquid grouting pump |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921218973.7U CN210218013U (en) | 2019-07-31 | 2019-07-31 | Hydraulic double-liquid grouting pump |
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| CN210218013U true CN210218013U (en) | 2020-03-31 |
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| CN201921218973.7U Active CN210218013U (en) | 2019-07-31 | 2019-07-31 | Hydraulic double-liquid grouting pump |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111608903A (en) * | 2020-06-24 | 2020-09-01 | 北京华海基业机械设备有限公司 | Liquid suction and discharge valve and working method thereof |
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2019
- 2019-07-31 CN CN201921218973.7U patent/CN210218013U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111608903A (en) * | 2020-06-24 | 2020-09-01 | 北京华海基业机械设备有限公司 | Liquid suction and discharge valve and working method thereof |
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