CN111559006A - Double-floating sealed stirring device - Google Patents
Double-floating sealed stirring device Download PDFInfo
- Publication number
- CN111559006A CN111559006A CN202010479757.9A CN202010479757A CN111559006A CN 111559006 A CN111559006 A CN 111559006A CN 202010479757 A CN202010479757 A CN 202010479757A CN 111559006 A CN111559006 A CN 111559006A
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- Prior art keywords
- shaft
- shaft coupling
- stirring
- mounting seat
- floating
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
- B28C5/08—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions using driven mechanical means affecting the mixing
- B28C5/10—Mixing in containers not actuated to effect the mixing
- B28C5/12—Mixing in containers not actuated to effect the mixing with stirrers sweeping through the materials, e.g. with incorporated feeding or discharging means or with oscillating stirrers
- B28C5/14—Mixing in containers not actuated to effect the mixing with stirrers sweeping through the materials, e.g. with incorporated feeding or discharging means or with oscillating stirrers the stirrers having motion about a horizontal or substantially horizontal axis
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
- B28C5/08—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions using driven mechanical means affecting the mixing
- B28C5/0806—Details; Accessories
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
- B28C5/08—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions using driven mechanical means affecting the mixing
- B28C5/0806—Details; Accessories
- B28C5/0818—Charging or discharging gates or chutes; Sealing means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
- B28C5/08—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions using driven mechanical means affecting the mixing
- B28C5/0806—Details; Accessories
- B28C5/0831—Drives or drive systems, e.g. toothed racks, winches
- B28C5/085—Hydraulic drives
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Mixers Of The Rotary Stirring Type (AREA)
- Accessories For Mixers (AREA)
Abstract
The invention discloses a double-floating seal stirring device, which solves the problems that in the prior art, when a stirring shaft of a mortar tank stirs a large-diameter mortar tank, the coaxiality error of the stirring shaft is large and the stirring seal structure is easy to lose effectiveness. The invention comprises a stirring blade shaft arranged in a tank body, wherein two ends of the stirring blade shaft are provided with a coupling floating connection mechanism, the coupling floating connection mechanisms are fixed on the tank body, one coupling floating connection mechanism is connected with a hydraulic motor, and the hydraulic motor provides power for the rotation of the stirring blade shaft. The floating connection mechanism of the shaft coupling is additionally arranged at the two ends of the stirring blade shaft, so that the floating connection mechanism is connected with the tank body in a sealing and high-strength manner; the floating connecting mechanism of the coupler effectively compensates the coaxiality problem of the stirring shaft through the coupler assembly and the floating sealing structure, is suitable for stirring mortar in the large-diameter tank body, reduces the failure rate of the stirring sealing structure, and improves the reliability and stability of the stirring shaft.
Description
Technical Field
The invention relates to the technical field of mortar tanks for shields, in particular to a double-floating sealed stirring device.
Background
In the shield construction process, after the shield tail leaves the duct piece, grouting equipment is needed to be used for synchronously grouting a gap between the duct piece and a soil body. The mortar tank of the existing shield tunneling machine is mostly in a horizontal stirring form, a motor reducer is adopted to drive a stirring shaft driving shaft, the stirring shaft is divided into a driving shaft, a stirring blade shaft and a driven shaft, and the shaft are connected through flange bolts. In recent years, with the appearance of a large-diameter shield tunneling machine, the volume of a mortar tank is gradually increased, the total length of a stirring shaft is increased, the length of the stirring shaft of the mortar tank of the existing equipment is as long as about 7 meters, and even longer, but with the increase of the length of the stirring shaft, the requirements on the processing, welding and assembling processes and precision of the stirring shaft are higher and higher, the sealing and supporting device of the stirring shaft of the mortar tank for the shield tunneling machine in the prior art, such as the application number CN201820153472.4, is difficult to meet the design requirements, and the stirring efficiency is low.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a double-floating seal stirring device, which solves the problems that the coaxiality error of a stirring shaft is large and the stirring seal structure is easy to lose effectiveness when the stirring shaft of a mortar tank is used for stirring a large-diameter mortar tank in the prior art.
The technical scheme of the invention is realized as follows: the utility model provides a two floating seal agitating unit, is including setting up the stirring vane axle in the jar body, the both ends of stirring vane axle are equipped with the unsteady coupling mechanism of shaft coupling, and the unsteady coupling mechanism of shaft coupling is fixed on the jar body, and one of them coupling floats and is connected with hydraulic motor on the coupling mechanism, and hydraulic motor provides power for the stirring vane axle is rotatory.
The floating connection mechanism of the coupler comprises a coupler component and a mounting seat, the mounting seat is fixed on the outer wall of the tank body, the coupler component is rotatably arranged in the mounting seat, and the coupler component is connected with the stirring blade shaft.
The shaft coupling subassembly includes the outer axle of shaft coupling and the interior axle of shaft coupling, and the one end of the outer axle of shaft coupling rotates through the bearing and sets up in the mount pad, and the other end of the outer axle of shaft coupling and the interior fixed sealing connection of axle coupling are equipped with first lubrication hole along circumference on the lateral wall of mount pad, and the oil-out of first lubrication hole is corresponding with the cavity that the outer axle of bearing, mount pad and shaft coupling constitutes.
The bearing symmetry sets up on the outer axle of shaft coupling, and carries out axial positioning through bush, lock nut to the bearing, the bush cover is established on the outer axle of shaft coupling, lock nut and the outer threaded connection of axle coupling.
The end cover is arranged at one end of the outer shaft of the coupler, which is connected with the inner shaft of the coupler, the end cover is connected with the outer shaft of the coupler through a first screw, a second sealing ring is arranged between the end cover and the inner shaft of the coupler, a first sealing ring is arranged between the end cover and the outer shaft of the coupler, a floating seal is arranged in a cavity formed by the mounting seat, the outer shaft of the coupler and the end cover, and a floating seal sleeve is arranged on the outer shaft.
And a second lubricating hole is formed in the side wall of the mounting seat along the circumferential direction, and an oil outlet of the second lubricating hole corresponds to a cavity formed by the mounting seat, the shaft coupling outer shaft and the end cover.
The end of the outer shaft of the coupler extending into the mounting seat is provided with a spline groove used for being connected with an output shaft of the hydraulic motor, the inner end face of the spline groove is provided with a sealing end cover, the sealing end cover is connected with the outer shaft of the coupler through a third screw, and a third sealing ring is arranged between the sealing end cover and the outer shaft of the coupler.
And a top cover is arranged on the outer end face of the sealing end cover and is connected with the sealing end cover through a fourth screw.
One end of the mounting seat extending into the tank body is provided with a sealing cover, a J-shaped seal is arranged between the sealing cover and the mounting seat and is connected with the sealing cover through a second screw, and the sealing cover is matched with an inner shaft of the coupler.
The outer wall of the tank body is provided with a connecting flange, the mounting seat is connected with the connecting flange through a connecting bolt, and a fourth sealing ring is arranged between the connecting flange and the mounting seat.
The floating connection mechanism of the shaft coupling is additionally arranged at the two ends of the stirring blade shaft, so that the floating connection mechanism is connected with the tank body in a sealing and high-strength manner; the floating connection mechanism of the coupler effectively compensates the coaxiality problem of the stirring shaft through the coupler assembly and the floating sealing structure, is suitable for stirring mortar in the large-diameter tank body, and realizes efficient and safe stirring. The double-floating seal stirring structure can effectively compensate the problem that the stirring shaft is not coaxial due to processing, welding and assembling errors through the coupler, and can also effectively compensate the coaxiality of the stirring blade shaft through the floating seal, thereby realizing the design of the double-floating seal, reducing the failure rate of the stirring seal structure, improving the reliability and stability of the stirring shaft, being a great innovation of stirring of the mortar tank for the shield and having higher popularization value.
Drawings
In order to illustrate the embodiments of the invention more clearly, the drawings that are needed in the description of the embodiments will be briefly described below, it being apparent that the drawings in the following description are only some embodiments of the invention, and that other drawings may be derived from those drawings by a person skilled in the art without inventive effort.
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a schematic structural diagram of the floating connection mechanism of the coupler of the invention.
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 obtained by a person skilled in the art without inventive effort based on the embodiments of the present invention, are within the scope of the present invention.
As shown in fig. 1, embodiment 1 is a double-floating seal stirring apparatus including a stirring blade shaft 18 provided in a tank 12, the stirring blade shaft 18 being provided with an impeller. The two ends of the stirring blade shaft 18 are provided with floating coupling connection mechanisms which are fixed on the tank body 12 to realize the support and fixation of the stirring blade shaft, one of the floating coupling connection mechanisms is connected with a hydraulic motor 1, and the hydraulic motor 1 provides power for the rotation of the stirring blade shaft 18. The floating connecting mechanism of the coupler effectively compensates the coaxiality problem of the stirring blade shaft, not only effectively solves the problem that the stirring shaft is not coaxial due to processing, welding and assembling errors, but also reduces the failure rate of a stirring sealing structure, and therefore the reliability and stability of the stirring shaft are improved.
Further, the floating connection mechanism of the coupler comprises a coupler assembly 100 and a mounting seat 7, the mounting seat 7 is fixed on the outer wall of the tank body 12 and is used for supporting the stirring blade shaft (when the hydraulic motor is connected, the hydraulic motor is also used for supporting the hydraulic motor, the hydraulic motor is connected with the mounting seat through a mounting bolt 2, a mounting gasket 3 is arranged between the mounting seat and the hydraulic motor), the coupler assembly is rotatably arranged in the mounting seat 7, and the coupler assembly is connected with the stirring blade shaft 18. Under the action of a driving device (a hydraulic motor), the shaft coupling component drives the stirring blade shaft to rotate so as to stir mortar in the tank body. The hydraulic motor is used as a driving source, and has the characteristic of light weight, so that the problems that the stirring shaft driving shaft is deformed in a large deflection manner due to the self weight of the driving source, the stirring sealing structure is invalid and the like can be solved.
As shown in fig. 2, in embodiment 2, the coupling assembly includes a coupling outer shaft 8 and a coupling inner shaft 19, the coupling outer shaft 8 and the coupling inner shaft 19 are fixedly connected or inserted or the coupling outer shaft and the coupling inner shaft are connected by a cambered gear to realize synchronous rotation. One end of the outer shaft 8 of the coupling is rotatably arranged in the mounting seat 7 through the bearing 9, the other end of the outer shaft 8 of the coupling is fixedly and hermetically connected with the inner shaft 19 of the coupling, the inner shaft 19 of the coupling and the outer shaft of the coupling synchronously rotate, and the inner shaft of the coupling is fixedly connected with the stirring blade shaft 18 through the rivet 17, so that the connection of the stirring blade shaft 18 of the coupling assembly is realized. Be equipped with first lubrication hole 26 along circumference on the lateral wall of mount pad 7, first lubrication hole is radial hole, and the oil-out of first lubrication hole 26 is corresponding with the cavity that bearing 9, mount pad 7 and the outer axle 8 of shaft coupling are constituteed, and lubricating oil gets into above-mentioned cavity through first lubrication hole and lubricates bearing etc. improves life.
Preferably, bearing 9 symmetry sets up on axle 8 is outer to the shaft coupling, and carries out axial positioning through bush 6, locknut 4 to bearing 9, is equipped with check washer 5 between bush 6 and the locknut 4, 6 covers of bush are established on axle 8 is outer to the shaft coupling, and locknut 4 and the outer axle 8 threaded connection of shaft coupling carry out axial fixity to bush, bearing through rotating locknut.
Furthermore, an end cover 22 is arranged at one end of the coupling outer shaft 8 connected with the coupling inner shaft 19, the end cover 22 is connected with the coupling outer shaft 8 through a first screw 21, a second sealing ring 20 is arranged between the end cover 22 and the coupling inner shaft 19, and the second sealing ring 20 is sealed by a Glare ring, so that the sealing effect is improved. An inner shaft 19 of the coupler penetrates through an end cover 22, a first sealing ring 23 is arranged between the end cover 22 and an outer shaft 8 of the coupler, the first sealing ring 23 is an O-shaped sealing ring, a floating seal 25 is arranged in a cavity formed by a mounting seat 7, the outer shaft 8 of the coupler and the end cover 22, the floating seal 25 is sleeved on the outer shaft 8 of the coupler, the floating seal is a high-performance seal which integrates floating ring seal, gap seal and comb seal into a whole, and leakage is effectively prevented by using the tension of an oil film. Preferably, a second lubrication hole 32 is formed in the side wall of the mounting seat 7 along the circumferential direction, the second lubrication hole 32 is a radial oil hole, an oil outlet of the second lubrication hole 32 corresponds to a cavity formed by the mounting seat 7, the shaft coupling outer shaft 8 and the end cover 22, and lubricating oil enters the cavity through the second lubrication hole to lubricate the floating seal, so that the service life of the floating seal is prolonged.
The other structure is the same as embodiment 1.
As shown in fig. 2, in embodiment 3, one end of the coupling outer shaft 8 extending into the mounting seat 7 is provided with a spline groove 33 for connecting with the output shaft of the hydraulic motor 1, the spline groove is in key connection with the output shaft of the hydraulic motor, and a sealing ring 31 is arranged between the spline groove and the output shaft of the hydraulic motor. And a sealing end cover 29 is arranged on the inner end face of the spline groove 33, the sealing end cover 29 is connected with the outer shaft 8 of the coupling through a third screw 28, and a third sealing ring 30 is arranged between the sealing end cover 29 and the outer shaft 8 of the coupling, so that the sealing between the sealing end cover 29 and the outer shaft of the coupling is realized.
Further, a top cover 27 is arranged on the outer end face of the end cover 29, and the top cover 27 is connected with the end cover 29 through a fourth screw 24. The top cover and the shaft in the coupler are coaxially arranged, and the top cover protrudes outwards towards one side of the shaft in the coupler to realize the axial limiting effect on the shaft in the coupler.
Furthermore, a sealing cover 15 is arranged at one end of the mounting seat 7 extending into the tank body 12, a J-shaped seal 14 is arranged between the sealing cover 15 and the mounting seat 7, and the J-shaped seal 14 is connected with the sealing cover 15 through a second screw 16 and used for sealing between the sealing cover and the mounting seat. The shaft coupling inner shaft 19 penetrates through the sealing cover 15 to be matched with the sealing cover 15, the sealing cover 15 is pressed on the outer side of the end cover 22, the end cover is supported and positioned, and meanwhile the sealing performance between the shaft coupling inner shaft and the shaft coupling inner shaft is improved.
Further, a connecting flange 11 is welded on the outer wall of the tank body 12, the mounting seat 7 is connected with the connecting flange 11 through a connecting bolt 10, fixing of the mounting seat is achieved, and a fourth sealing ring 13 is arranged between the connecting flange 11 and the mounting seat 7 and used for sealing between the mounting seat and the connecting flange.
The other structure is the same as embodiment 2.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. The utility model provides a two floating seal agitating unit, is including setting up stirring vane axle (18) in jar body (12), its characterized in that: the two ends of the stirring blade shaft (18) are provided with a coupler floating connection mechanism, the coupler floating connection mechanism is fixed on the tank body (12), one coupler floating connection mechanism is connected with a hydraulic motor (1), and the hydraulic motor (1) provides power for rotation of the stirring blade shaft (18).
2. The dual floating seal agitator of claim 1, wherein: the floating connection mechanism of the coupler comprises a coupler component and a mounting seat (7), wherein the mounting seat (7) is fixed on the outer wall of the tank body (12), the coupler component is rotatably arranged in the mounting seat (7), and the coupler component is connected with the stirring blade shaft (18).
3. The dual floating seal agitator of claim 2, wherein: the shaft coupling subassembly includes shaft coupling outer axle (8) and shaft coupling inner axle (19), and the one end of shaft coupling outer axle (8) is passed through bearing (9) and is rotated the setting in mount pad (7), and the other end of shaft coupling outer axle (8) and shaft coupling inner axle (19) fixed sealing connection are equipped with first lubrication hole (26) along circumference on the lateral wall of mount pad (7), and the oil-out of first lubrication hole (26) is corresponding with the cavity that bearing (9), mount pad (7) and shaft coupling outer axle (8) are constituteed.
4. The dual floating seal agitator of claim 3, wherein: bearing (9) symmetry sets up on the outer axle of shaft coupling (8), and carries out axial positioning to bearing (9) through bush (6), lock nut (4), bush (6) cover is established on the outer axle of shaft coupling (8), lock nut (4) and the outer axle of shaft coupling (8) threaded connection.
5. The double floating seal agitator of claim 3 or 4, wherein: the shaft coupling is characterized in that an end cover (22) is arranged at one end, connected with a shaft coupling inner shaft (19), of the shaft coupling outer shaft (8), the end cover (22) is connected with the shaft coupling outer shaft (8) through a first screw (21), a second sealing ring (20) is arranged between the end cover (22) and the shaft coupling inner shaft (19), a first sealing ring (23) is arranged between the end cover (22) and the shaft coupling outer shaft (8), a floating seal (25) is arranged in a cavity formed by the mounting seat (7), the shaft coupling outer shaft (8) and the end cover (22), and the floating seal (25) is sleeved on the shaft coupling outer shaft (8).
6. The dual floating seal agitator of claim 5, wherein: and a second lubricating hole (32) is formed in the side wall of the mounting seat (7) along the circumferential direction, and an oil outlet of the second lubricating hole (32) corresponds to a cavity formed by the mounting seat (7), the shaft coupling outer shaft (8) and the end cover (22).
7. The double floating seal agitator of any one of claims 3, 4, and 6, wherein: the shaft coupling outer shaft (8) stretches into one end in mount pad (7) and is equipped with spline groove (33) that are used for being connected with hydraulic motor (1) output shaft, and the inner end face of spline groove (33) is equipped with end cover (29), and end cover (29) are connected with shaft coupling outer shaft (8) through third screw (28), are equipped with third sealing washer (30) between end cover (29) and the shaft coupling outer shaft (8).
8. The dual floating seal agitator of claim 7, wherein: and a top cover (27) is arranged on the outer end face of the sealing end cover (29), and the top cover (27) is connected with the sealing end cover (29) through a fourth screw (24).
9. The double-floating sealed stirring device of any one of claims 2 to 5, wherein: one end of the mounting seat (7) extending into the tank body (12) is provided with a sealing cover (15), a J-shaped seal (14) is arranged between the sealing cover (15) and the mounting seat (7), the J-shaped seal (14) is connected with the sealing cover (15) through a second screw (16), and the sealing cover (15) is matched with an inner shaft (19) of the coupler.
10. The dual floating seal agitator of claim 9, wherein: the outer wall of the tank body (12) is provided with a connecting flange (11), the mounting seat (7) is connected with the connecting flange (11) through a connecting bolt (10), and a fourth sealing ring (13) is arranged between the connecting flange (11) and the mounting seat (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010479757.9A CN111559006B (en) | 2020-05-29 | 2020-05-29 | Double-floating sealed stirring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010479757.9A CN111559006B (en) | 2020-05-29 | 2020-05-29 | Double-floating sealed stirring device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111559006A true CN111559006A (en) | 2020-08-21 |
| CN111559006B CN111559006B (en) | 2021-11-19 |
Family
ID=72073665
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010479757.9A Active CN111559006B (en) | 2020-05-29 | 2020-05-29 | Double-floating sealed stirring device |
Country Status (1)
| Country | Link |
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| CN (1) | CN111559006B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2203811A1 (en) * | 1971-02-11 | 1972-08-24 | Jakob Faulstroh, Press- und Stanzwerk, 6080 Groß-Gerau | Mixers, in particular for mixing cement with water to produce cement paste |
| CN2724970Y (en) * | 2004-07-22 | 2005-09-14 | 无锡江加建设机械有限公司 | Shaft end sealing and supporting device for horizontal shaft type stirrer mixing shaft |
| CN201190738Y (en) * | 2008-04-04 | 2009-02-04 | 隋建卫 | Straight-coupling type gear oil pump generator with coupler |
| CN203317548U (en) * | 2013-03-12 | 2013-12-04 | 陕西开拓建筑科技有限公司 | Mining continuous discharge type concrete mixer |
| CN205043940U (en) * | 2015-09-06 | 2016-02-24 | 福建群峰机械有限公司 | Aerated concrete slurrying mixer transmission |
| CN205255260U (en) * | 2015-12-30 | 2016-05-25 | 潍坊德霖建材科技有限公司 | Coating mortar mixing apparatus |
| CN206436365U (en) * | 2017-01-16 | 2017-08-25 | 四川益巨交通工程有限责任公司 | A kind of shield grouting case |
| CN209869039U (en) * | 2019-03-27 | 2019-12-31 | 上海远通路桥工程有限公司 | Rotary blade type vibration stirrer |
-
2020
- 2020-05-29 CN CN202010479757.9A patent/CN111559006B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2203811A1 (en) * | 1971-02-11 | 1972-08-24 | Jakob Faulstroh, Press- und Stanzwerk, 6080 Groß-Gerau | Mixers, in particular for mixing cement with water to produce cement paste |
| CN2724970Y (en) * | 2004-07-22 | 2005-09-14 | 无锡江加建设机械有限公司 | Shaft end sealing and supporting device for horizontal shaft type stirrer mixing shaft |
| CN201190738Y (en) * | 2008-04-04 | 2009-02-04 | 隋建卫 | Straight-coupling type gear oil pump generator with coupler |
| CN203317548U (en) * | 2013-03-12 | 2013-12-04 | 陕西开拓建筑科技有限公司 | Mining continuous discharge type concrete mixer |
| CN205043940U (en) * | 2015-09-06 | 2016-02-24 | 福建群峰机械有限公司 | Aerated concrete slurrying mixer transmission |
| CN205255260U (en) * | 2015-12-30 | 2016-05-25 | 潍坊德霖建材科技有限公司 | Coating mortar mixing apparatus |
| CN206436365U (en) * | 2017-01-16 | 2017-08-25 | 四川益巨交通工程有限责任公司 | A kind of shield grouting case |
| CN209869039U (en) * | 2019-03-27 | 2019-12-31 | 上海远通路桥工程有限公司 | Rotary blade type vibration stirrer |
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| Publication number | Publication date |
|---|---|
| CN111559006B (en) | 2021-11-19 |
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