CN108858783B - Rotary sealing system of mixer truck - Google Patents
Rotary sealing system of mixer truck Download PDFInfo
- Publication number
- CN108858783B CN108858783B CN201811088146.0A CN201811088146A CN108858783B CN 108858783 B CN108858783 B CN 108858783B CN 201811088146 A CN201811088146 A CN 201811088146A CN 108858783 B CN108858783 B CN 108858783B
- Authority
- CN
- China
- Prior art keywords
- cylinder
- overflow
- gyration
- mixer truck
- discharging
- 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.)
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Links
- 238000007789 sealing Methods 0.000 title claims abstract description 46
- 238000007599 discharging Methods 0.000 claims abstract description 27
- 238000003756 stirring Methods 0.000 claims abstract description 18
- 239000000463 material Substances 0.000 claims abstract description 13
- 239000007788 liquid Substances 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 1
- 235000017491 Bambusa tulda Nutrition 0.000 description 1
- 241001330002 Bambuseae Species 0.000 description 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 239000011425 bamboo Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
Classifications
-
- 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
- B28C5/42—Apparatus specially adapted for being mounted on vehicles with provision for mixing during transport
- B28C5/4203—Details; Accessories
- B28C5/4234—Charge or discharge systems therefor
- B28C5/4244—Discharging; Concrete conveyor means, chutes or spouts therefor
-
- 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
- B28C5/42—Apparatus specially adapted for being mounted on vehicles with provision for mixing during transport
- B28C5/4203—Details; Accessories
- B28C5/4268—Drums, e.g. provided with non-rotary mixing blades
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)
Abstract
The invention discloses a rotary sealing system of a mixer truck, which is used for rotary sealing of the mixer truck, wherein the mixer truck comprises a mixing drum and a movable bracket, the bracket is provided with a rotary sealing cover through a rotary bearing, and is also provided with a feed hopper, and the system also comprises an overflow cylinder arranged on the rotary sealing cover and a discharge cylinder arranged at the outlet of the feed hopper; the tail end of the discharging cylinder is positioned in the central charging cylinder of the stirring barrel; the rear end of the overflow cylinder passes through the slewing bearing and is positioned at the rear side of the slewing bearing, and the edge of the rear end of the overflow cylinder is provided with an annular flanging which extends outwards along the radial direction. According to the invention, the axial sealing at the relative rotation position is canceled, the overflow cylinder with the flanging is adopted to directly drain the material at the gap between the overflow cylinder and the discharge cylinder to the outside, or the central sealing ring is arranged at the gap, so that the material which passes through the central sealing ring is drained through the overflow cylinder, the material is prevented from approaching the rotation bearing, and the problem of loose closing of the rotation sealing cover is solved.
Description
Technical Field
The invention relates to a rotary sealing device applied to a concrete mixer truck.
Background
The mixing drum of the traditional concrete mixing transport vehicle is open, and has the defects of poor weather resistance and driving safety, easy spillage, poor trafficability and the like. The invention of the rotary sealing mechanism of the mixing drum of the concrete mixing transport vehicle in 2010 solves the problems at one time, and also brings the problems of large device weight, large maintenance amount, more easily damaged parts, higher replacement cost and the like.
The patent CN107344401a, filed on 29 of 2017, entitled hollow shaft rotary sealed concrete mixer truck, solves the above problems, and also solves the problems that when the mixer drum has a central feeding cylinder, the rotary sealing cover is easy to be closed and the size of the discharging pipe of the feeding hopper is limited, and the feeding speed is affected.
Disclosure of Invention
The invention provides a rotary sealing system of a mixer truck, which aims at: solves the problem of the loose closing of the rotary sealing cover.
The technical scheme of the invention is as follows:
the utility model provides a mixer truck gyration seal system for the gyration seal of mixer truck, the mixer truck is including installing on the automobile body and can be for the agitator of automobile body gyration and install on the automobile body and can be for the support of automobile body removal, install gyration sealed lid through slewing bearing on the support, gyration sealed lid outward flange with the agitator export outward flange contacts so that gyration sealed lid is with the agitator gyration for the support under the drive of agitator, the through-hole has been seted up at gyration sealed lid middle part, still install feeder hopper, its characterized in that on the support: the rotary sealing system of the mixer truck comprises an overflow cylinder arranged on the rotary sealing cover and connected with the through hole and a discharge cylinder arranged at the outlet of the feed hopper; the overflow cylinder sleeved outside the discharging cylinder penetrates through the center hole of the rotary bearing, the rear end of the overflow cylinder is positioned at the rear side of the rotary bearing, and the edge of the rear end of the overflow cylinder is provided with an annular flanging which extends outwards along the radial direction; a gap is formed between the inner wall of the overflow cylinder and the outer wall of the discharge cylinder;
the tail end of the discharging cylinder stretches into the stirring barrel and is used for conveying materials in the feeding hopper into the stirring barrel.
As a further improvement of the invention: still include annular mud guard, mud guard outward flange with the support is connected, mud guard is located the rear side of overflow section of thick bamboo.
As a further improvement of the invention: the bottom of the mud guard is provided with an opening.
As a further improvement of the invention: and a central sealing ring is arranged at the gap between the inner wall of the overflow cylinder and the outer wall of the discharge cylinder.
As a further improvement of the invention: the central sealing ring is inflatable or liquid-filled.
As a further improvement of the invention: the stirring barrel is provided with a central charging barrel, the front end of the discharging barrel is conical, and the front end of the discharging barrel extends into the central charging barrel.
As a further improvement of the invention: the front end of the discharging cylinder is connected with a rubber cylinder matched with the central charging cylinder.
As a further improvement of the invention: the device also comprises a driving device for driving the bracket to translate back and forth relative to the mixer truck body.
As a further improvement of the invention: the driving device comprises a supporting seat arranged on the vehicle body, and an oil cylinder with one end connected with the supporting seat and the other end connected with the bracket.
As a further improvement of the invention: the support seat is provided with a bracket for supporting the cylinder body of the oil cylinder;
or,
the support seat is provided with a sliding block or a pulley support matched with the extending end of the oil cylinder;
or,
and the extending end of the oil cylinder is provided with a sliding block or a pulley support matched with the supporting seat.
Compared with the prior art, the invention has the following positive effects: (1) According to the invention, the axial sealing at the relative rotation position is cancelled, a sleeve type structure is changed, and an overflow cylinder with a flanging is adopted to directly drain the material at the gap between the overflow cylinder and the discharge cylinder to the outside, or a central sealing ring is arranged at the gap, so that the material which passes through the central sealing ring is drained through the overflow cylinder, the material is prevented from approaching the rotary bearing, and the problem of loose closing of the rotary sealing cover is solved; (2) Because the sleeve type structure is adopted, the discharging cylinder of the feeding hopper can be lengthened, the central charging cylinder in the stirring barrel can be removed, the diameter of the feeding position is not limited by the central charging cylinder any more, and the feeding speed is improved; (3) The annular flanging of the mud guard and the overflow cylinder is utilized to form a labyrinth sealing structure, so that earth impurities are prevented from passing through a gap between the overflow cylinder and the bracket to contact the slewing bearing; (4) The bottom of the mud guard is provided with an opening, so that water accumulation in the mud guard is avoided; (5) The tail end of the discharging cylinder adopts a conical structure, so that the discharging cylinder can conveniently enter and exit the central charging cylinder during translation; (6) The rubber cylinder is additionally arranged at the tail end of the discharging cylinder, so that stones and the like can be prevented from being retained at a gap between the discharging cylinder and the central charging cylinder, and translational movement is prevented.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a partial enlarged view of the area a in fig. 1.
Detailed Description
The technical scheme of the invention is described in detail below with reference to the accompanying drawings:
referring to fig. 1, a rotary seal system for a mixer truck is provided. The stirring vehicle adopts a novel hollow shaft rotary sealing structure proposed in a hollow shaft rotary sealed concrete stirring transportation vehicle with publication number of CN 107344401A: the mixer truck comprises a mixer drum 1 which is arranged on a truck body and can rotate relative to the truck body, and a support 10 which is arranged on the truck body and can move relative to the truck body, wherein a rotary sealing cover 3 is arranged on the support 10 through a rotary bearing 8, the outer edge of the rotary sealing cover 3 is contacted with the outer edge of an outlet of the mixer drum 1, a sealing element is arranged at the contact part, on one hand, the sealing is realized, on the other hand, the rotary sealing cover 3 rotates relative to the fixed part of the support 10 along with the mixer drum 1 under the driving of the mixer drum 1, a through hole is formed in the middle of the rotary sealing cover 3, and a feed hopper 7 is arranged on the support 10 in a detachable mode and is used for conveying materials into the mixer drum 1.
The present embodiment is implemented based on the above-described structure, and an object is to improve the rotary seal performance. The concrete structure is as follows:
the rotary sealing system of the mixer truck comprises an overflow cylinder 12 which is arranged on the rotary sealing cover 3 and connected with the through hole, and a discharge cylinder 9 which is arranged at the outlet of the feed hopper 7; the overflow cylinder 12 sleeved outside the discharging cylinder 9 passes through the central hole of the rotary bearing 8, the rear end of the overflow cylinder is positioned at the rear side of the rotary bearing 8, and the edge of the rear end of the overflow cylinder 12 is provided with an annular flanging which extends outwards along the radial direction and is used for guiding out materials; a gap is arranged between the inner wall of the overflow cylinder 12 and the outer wall of the discharging cylinder 9.
The tail end of the discharging cylinder 9 extends into the stirring barrel 1 and is used for conveying materials in the feeding hopper 7 into the stirring barrel 1. Due to the adoption of the sleeve type structure, the stirring barrel 1 can retain the central charging barrel 2, and can remove and lengthen the discharging barrel 9 of the feeding hopper 7, so that the diameter of a feeding position is not limited by the central charging barrel 2 any more, and the feeding speed is improved.
Further, the overflow cylinder 12 also passes through the bracket 10, and a gap is left between the overflow cylinder and the bracket 10.
When the stirring barrel 1 rotates, the rotary sealing cover 3 and the overflow barrel 12 rotate together with the stirring barrel 1, and the bracket 10 is fixed and stationary relative to the vehicle body. After overflowing to the gap between the inner wall of the overflow cylinder 12 and the outer wall of the discharging cylinder 9, the material in the stirring barrel 1 is led to the outer side of the vehicle by the overflow cylinder 12, so that the material is prevented from approaching the slewing bearing 8. Meanwhile, the axial sealing at the relative rotation position is canceled, so that the problem that the rotary sealing cover 3 is not tightly closed is solved.
As shown in fig. 1 and 2, a ring-shaped mud guard 11 is further arranged, the outer edge of the mud guard 11 is connected with the support 10, the mud guard 11 is positioned at the rear side of the overflow cylinder 12, and forms a labyrinth seal structure with the annular flanging of the overflow cylinder 12, so that earth sundries are prevented from contacting the slewing bearing 8 through a gap between the overflow cylinder 12 and the support 10.
Furthermore, an opening is formed in the bottom of the mud guard 11 to prevent water from accumulating in the mud guard 11.
As shown in fig. 1, the rotary sealing cover device further comprises a driving device for driving the bracket 10 to translate back and forth relative to the mixer truck body, and the rotary sealing cover 3 is opened and closed relative to the mixer drum 1 in a translation mode, so that the sleeve-folding butt joint of the central charging drum 2 and the discharging drum 9 is realized in a translation telescopic mode, and smooth and non-outflow feeding is ensured. Preferably, the driving device comprises a supporting seat 6 arranged on the vehicle body and an oil cylinder 5 with one end connected with the supporting seat 6 and the other end connected with the bracket 10. The integrated support frame structure is adopted, the hinged fixed end of the oil cylinder 5 and the support seat 6 are integrated, so that the occupied space is reduced, and the weight is reduced.
The supporting seat 6 is also provided with a bracket for supporting the cylinder body of the oil cylinder 5, and the bracket can also be: the supporting seat 6 is provided with a sliding block or a pulley support matched with the extending end of the oil cylinder 5, or the extending end of the oil cylinder 5 is provided with a sliding block or a pulley support matched with the supporting seat 6, and the purpose of the supporting seat is to bear the weight of the rotary sealing cover 3, reduce the load bearing of the oil cylinder 5, reduce the vibration and the impact on the oil cylinder 5 during feeding, reduce the abrasion of the oil cylinder 5, and improve the service life of the oil cylinder 5 and the reliability and the running stability of the whole system.
When the stirring barrel 1 is provided with the central charging barrel 2, the front end of the discharging barrel 9 can be in a straight barrel type or a cone barrel type. The straight cylinder is easy to enter and exit, but the central charging cylinder 2 and the discharging cylinder 9 are easy to interfere; the cone is convenient to push, but is easy to catch stones. Preferably, the cone-shaped cylinder is adopted, and the front end of the discharging cylinder 9 is connected with the rubber cylinder 4 matched with the central charging cylinder 2, so that the rubber cylinder is in close contact with the central charging cylinder 2, and the retention of stones is avoided.
Example two
As shown in fig. 2, the present embodiment is different from the first embodiment in that: the gap between the inner wall of the overflow cylinder 12 and the outer wall of the discharge cylinder 9 is provided with a central sealing ring 13, and the central sealing ring 13 is of an inflatable type or a liquid filling type and is used for preventing the concrete in the stirring barrel 1 from overflowing. Even if there is an overflow there, a small amount of concrete overflowed will reach the outside of the vehicle along the flange of the overflow cylinder 12 without affecting the normal operation of the mixer truck.
Claims (6)
1. The utility model provides a mixer truck gyration sealing system for the gyration of mixer truck is sealed, the mixer truck is including installing on the automobile body and can be for the agitator (1) of automobile body gyration and install on the automobile body and can be for support (10) of automobile body removal, install gyration sealed lid (3) on support (10) through slewing bearing (8), gyration sealed lid (3) outward flange with agitator (1) export outward flange contacts so that gyration sealed lid (3) revolve for support (10) along with agitator (1) under the drive of agitator (1), the through-hole has been seted up at gyration sealed lid (3) middle part, still install feeder hopper (7) on support (10), its characterized in that: the rotary sealing system of the mixer truck comprises an overflow cylinder (12) which is arranged on the rotary sealing cover (3) and is connected with the through hole, and a discharging cylinder (9) which is arranged at the outlet of the feeding hopper (7); an overflow cylinder (12) sleeved outside the discharging cylinder (9) penetrates through a central hole of the rotary bearing (8), the rear end of the overflow cylinder is positioned at the rear side of the rotary bearing (8), and the edge of the rear end of the overflow cylinder (12) is provided with an annular flanging which extends outwards along the radial direction; a gap is formed between the inner wall of the overflow cylinder (12) and the outer wall of the discharge cylinder (9);
the tail end of the discharging cylinder (9) stretches into the stirring barrel (1) and is used for conveying materials in the feeding hopper (7) into the stirring barrel (1);
the overflow pipe is characterized by further comprising an annular mud guard (11), wherein the outer edge of the mud guard (11) is connected with the bracket (10), and the mud guard (11) is positioned at the rear side of the overflow pipe (12);
an opening is formed in the bottom of the mud guard (11);
a central sealing ring (13) is arranged at the gap between the inner wall of the overflow cylinder (12) and the outer wall of the discharge cylinder (9);
the central sealing ring (13) is inflatable or liquid-filled.
2. The truck swivel seal system of claim 1 wherein: the stirring barrel (1) is provided with a central charging barrel (2), the front end of the discharging barrel (9) is conical, and the front end of the discharging barrel (9) stretches into the central charging barrel (2).
3. The truck swivel seal system of claim 2 wherein: the front end of the discharging cylinder (9) is connected with a rubber cylinder (4) matched with the central charging cylinder (2).
4. A truck swivel seal system according to any one of claims 1 to 3 wherein: the device also comprises a driving device for driving the bracket (10) to translate back and forth relative to the mixer truck body.
5. The truck swivel seal system of claim 4 wherein: the driving device comprises a supporting seat (6) arranged on the vehicle body and an oil cylinder (5) with one end connected with the supporting seat (6) and the other end connected with the bracket (10).
6. The truck swivel seal system of claim 5 wherein: a bracket for supporting the cylinder body of the oil cylinder (5) is arranged on the supporting seat (6);
or,
a sliding block or a pulley support matched with the extending end of the oil cylinder (5) is arranged on the supporting seat (6);
or,
the extending end of the oil cylinder (5) is provided with a sliding block or a pulley support matched with the supporting seat (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811088146.0A CN108858783B (en) | 2018-09-18 | 2018-09-18 | Rotary sealing system of mixer truck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811088146.0A CN108858783B (en) | 2018-09-18 | 2018-09-18 | Rotary sealing system of mixer truck |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108858783A CN108858783A (en) | 2018-11-23 |
| CN108858783B true CN108858783B (en) | 2023-11-21 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811088146.0A Active CN108858783B (en) | 2018-09-18 | 2018-09-18 | Rotary sealing system of mixer truck |
Country Status (1)
| Country | Link |
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| CN (1) | CN108858783B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109366736B (en) * | 2018-12-14 | 2023-08-01 | 烟台盛利达工程技术有限公司 | Rotary sealing device of mixer truck with non-fixed rotary shaft |
| CN109624087B (en) * | 2019-01-29 | 2023-12-29 | 烟台盛利达工程技术有限公司 | Integrated rotary sealing system |
| CN110103339B (en) * | 2019-06-12 | 2024-02-20 | 烟台盛利达工程技术有限公司 | Spiral-compressed clutch type rotary sealing mechanism |
| CN110202695B (en) * | 2019-07-01 | 2023-12-29 | 盛镝 | Portable rotary sealing mechanism |
| CN112497503A (en) * | 2020-11-12 | 2021-03-16 | 山东精砼工程机械股份有限公司 | Rotary sealing mechanism for fixing central cylinder of stirring barrel |
| CN112855937B (en) * | 2021-02-08 | 2022-11-18 | 山东精砼工程机械股份有限公司 | Built-in pressure rotary sealing device and control method |
| CN113386264A (en) * | 2021-07-19 | 2021-09-14 | 湖北四通专用汽车有限公司 | Tunnel concrete tank truck tank body structure |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000263542A (en) * | 1999-03-12 | 2000-09-26 | Showa Jidosha:Kk | Concrete mixer vehicle |
| CN101941244A (en) * | 2010-08-24 | 2011-01-12 | 盛富春 | Concrete mixing truck adopting mixing drum and feed/discharge opening rotary sealing technology |
| CN204799145U (en) * | 2015-05-23 | 2015-11-25 | 嘉兴迪肯特化工机械有限公司 | Agitator with antifouling device |
| CN205766874U (en) * | 2016-05-25 | 2016-12-07 | 山东东岳专用汽车制造有限公司 | A kind of trucd mixer charging feeding back device |
| CN107344401A (en) * | 2017-08-29 | 2017-11-14 | 烟台盛利达工程技术有限公司 | The concrete mixing and transporting car of quill shaft rotary sealing |
| CN209365031U (en) * | 2018-09-18 | 2019-09-10 | 烟台盛利达工程技术有限公司 | Mixer truck rotary sealing system |
-
2018
- 2018-09-18 CN CN201811088146.0A patent/CN108858783B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000263542A (en) * | 1999-03-12 | 2000-09-26 | Showa Jidosha:Kk | Concrete mixer vehicle |
| CN101941244A (en) * | 2010-08-24 | 2011-01-12 | 盛富春 | Concrete mixing truck adopting mixing drum and feed/discharge opening rotary sealing technology |
| CN204799145U (en) * | 2015-05-23 | 2015-11-25 | 嘉兴迪肯特化工机械有限公司 | Agitator with antifouling device |
| CN205766874U (en) * | 2016-05-25 | 2016-12-07 | 山东东岳专用汽车制造有限公司 | A kind of trucd mixer charging feeding back device |
| CN107344401A (en) * | 2017-08-29 | 2017-11-14 | 烟台盛利达工程技术有限公司 | The concrete mixing and transporting car of quill shaft rotary sealing |
| CN209365031U (en) * | 2018-09-18 | 2019-09-10 | 烟台盛利达工程技术有限公司 | Mixer truck rotary sealing system |
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| CN108858783A (en) | 2018-11-23 |
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