CN111203984A - Attached rotary sealing mixer truck - Google Patents
Attached rotary sealing mixer truck Download PDFInfo
- Publication number
- CN111203984A CN111203984A CN202010198773.0A CN202010198773A CN111203984A CN 111203984 A CN111203984 A CN 111203984A CN 202010198773 A CN202010198773 A CN 202010198773A CN 111203984 A CN111203984 A CN 111203984A
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- Prior art keywords
- ring
- sealing
- sealing cover
- feeding
- mixer truck
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- 238000007789 sealing Methods 0.000 title claims abstract description 130
- 238000003756 stirring Methods 0.000 claims abstract description 52
- 238000007599 discharging Methods 0.000 claims abstract description 47
- 230000007246 mechanism Effects 0.000 claims abstract description 44
- 230000009471 action Effects 0.000 claims abstract description 4
- 230000003068 static effect Effects 0.000 claims abstract description 4
- 239000000463 material Substances 0.000 claims description 40
- 239000000314 lubricant Substances 0.000 claims description 16
- 230000006835 compression Effects 0.000 claims description 10
- 238000007906 compression Methods 0.000 claims description 10
- 238000012423 maintenance Methods 0.000 abstract description 3
- 230000006872 improvement Effects 0.000 description 9
- 230000000694 effects Effects 0.000 description 4
- 230000001050 lubricating effect Effects 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000007779 soft material Substances 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
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
- B28C5/42—Apparatus specially adapted for being mounted on vehicles with provision for mixing during transport
- B28C5/4203—Details; Accessories
- B28C5/4262—Closures; Sealing mechanisms
-
- 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
-
- 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
- B28C5/4206—Control apparatus; Drive systems, e.g. coupled to the vehicle drive-system
- B28C5/422—Controlling or measuring devices
-
- 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
- B28C5/4237—Charging, e.g. hoppers
-
- 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
- B60—VEHICLES IN GENERAL
- B60P—VEHICLES ADAPTED FOR LOAD TRANSPORTATION OR TO TRANSPORT, TO CARRY, OR TO COMPRISE SPECIAL LOADS OR OBJECTS
- B60P3/00—Vehicles adapted to transport, to carry or to comprise special loads or objects
- B60P3/16—Vehicles adapted to transport, to carry or to comprise special loads or objects for carrying mixed concrete, e.g. having rotatable drums
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Transportation (AREA)
- Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)
Abstract
The invention discloses an attached type rotary sealing mixer truck, which comprises a mixing tank and a sealing cover positioned at the rear side of the mixing tank, wherein the mixing tank is connected with the mixing tank through a rotary sealing device; the stirring truck also comprises a stopping mechanism for preventing the sealing cover from rotating along with the stirring barrel, when the stopping mechanism is locked, the sealing cover is static relative to the truck body of the stirring truck, and when the stopping mechanism is released, the sealing cover rotates along with the stirring barrel under the action of the rotary sealing device; the sealing cover is provided with a feeding and discharging mechanism, when the feeding and discharging port of the feeding and discharging mechanism faces upwards, the feeding and discharging port is used as a feeding port, and when the feeding and discharging port faces downwards, the feeding and discharging port is used as a discharging port. The rotary sealing device is used for connecting the sealing cover with the stirring barrel, and the sealing cover is provided with the feeding and discharging mechanism which integrates feeding and discharging, so that the structure is simplified, the weight is reduced, and the rotary stirring device has the advantages of convenience in maintenance, less leakage and the like.
Description
Technical Field
The invention relates to a rotary sealing device for a premixed concrete mixing transport vehicle, which can also be used on dry and wet material transport vehicles of other fluids.
Background
The agitator of traditional concrete mixer truck transport vechicle is mainly uncovered, has the heat preservation and moisturizes not good, easily spills hourglass, and the not good scheduling problem of concrete quality. In order to solve the problems, the tail end of the stirring barrel of the existing stirring vehicle is additionally provided with a sealing cover, the stirring barrel and the sealing cover are sealed through a rotary sealing device, and a rotary supporting device is used for supporting.
The existing mixer truck has the following problems: the afterbody contains mechanisms such as rotary seal, gyration support, feeder hopper and discharge gate, and the structure is complicated, and weight is big.
Disclosure of Invention
The invention provides an attached type rotary sealing mixer truck, which aims to: simplify tail business turn over material mechanism, reduce weight.
The technical scheme of the invention is as follows:
an attached type rotary sealed stirring truck comprises a stirring barrel and a sealing cover positioned on the rear side of the stirring barrel, wherein the stirring barrel is connected with the stirring barrel through a rotary sealing device;
the stirring truck also comprises a stopping mechanism for preventing the sealing cover from rotating along with the stirring barrel, when the stopping mechanism is in a braking position, the sealing cover is static relative to the truck body of the stirring truck, and when the stopping mechanism is in a non-braking position, the sealing cover rotates along with the stirring barrel under the action of the rotary sealing device;
the sealing cover is provided with a feeding and discharging mechanism, when the feeding and discharging port of the feeding and discharging mechanism faces upwards, the feeding and discharging port is used as a feeding port, and when the feeding and discharging port faces downwards, the feeding and discharging port is used as a discharging port.
As a further improvement of the mixer truck: the feeding and discharging mechanism is a chute, and the front end of the chute extends into the central charging barrel of the stirring barrel.
As a further improvement of the mixer truck: a bottom plate is further arranged at the material inlet and outlet; the mixer truck also comprises an opening and closing control mechanism for controlling the opening and closing of the bottom plate.
As a further improvement of the mixer truck: the bottom plate is arranged at the material inlet and the material outlet in a hinged mode; the opening and closing control structure comprises a telescopic cylinder, one end of the telescopic cylinder is rotatably connected with the sealing cover, and the other end of the telescopic cylinder is rotatably connected with the bottom plate.
As a further improvement of the mixer truck: the sealing cover or the rotary sealing device is provided with a convex block, and the stop mechanism is a movable stop block which is arranged on the vehicle body and is used for being matched with the convex block.
As a further improvement of the mixer truck: the rotary sealing device comprises a ring rail arranged at the rear end of the stirring barrel, the inner edge of the ring rail is connected with the rear end of the stirring barrel, and the ring rail is positioned on the front side of the sealing cover;
the rotary sealing device also comprises a connecting ring which is arranged at the front end of the sealing cover and sleeved outside the ring rail, and a fixing ring which is arranged at the front end of the connecting ring and positioned at the front side of the ring rail; the ring rail is located in an annular space defined by the sealing cover, the connecting ring and the fixing ring, the ring rail is in sliding fit with the connecting ring and the fixing ring, and an annular sealing mechanism is further arranged in the annular space.
As a further improvement of the mixer truck: the sealing mechanism in the annular space comprises a sealing ring and a sealing ring;
the cross section of the sealing ring is L-shaped and comprises an annular part and a cylindrical part, wherein the front end of the cylindrical part is connected with the inner edge of the annular part;
the front end surface of the ring rail is in contact with the rear end surface of the fixing ring, and the rear end surface of the ring rail is in contact with the front end surface of the annular part; the inner side of the front end of the connecting ring is provided with an annular groove, and the outer edges of the annular rail and the annular part are both positioned in the annular groove;
the sealing ring is positioned in a space surrounded by the annular part, the cylindrical part, the sealing cover and the connecting ring.
As a further improvement of the mixer truck: a gap is reserved between the outer circular surface of the sealing ring and the connecting ring, a compression ring with a wedge-shaped section is installed in the gap, and the rear end of the compression ring is in contact with the sealing cover.
As a further improvement of the mixer truck: and the top of the connecting ring is also provided with a lubricant cavity which is communicated with the annular groove.
As a further improvement of the mixer truck: the rotary sealing cover is also provided with an arc-shaped plate; when feeding, the arc-shaped plate is positioned above the material inlet and outlet and is used as a shielding plate; during discharging, the arc-shaped plate is positioned below the material inlet and the material outlet and used as a discharging groove.
Compared with the prior art, the invention has the following beneficial effects: (1) according to the invention, the sealing cover is connected with the stirring barrel by using the rotary sealing device, and the sealing cover is provided with the feeding and discharging mechanism which integrates feeding and discharging, so that on one hand, the purpose of rotary sealing is achieved, and on the other hand, after the sealing cover is fixed by using the stopping mechanism, the sealing cover can be stopped at a required position, so that the feeding or discharging function is realized, the structure is simplified, and the weight is reduced; (2) the feeding and discharging port is provided with a bottom plate which can be controlled to open and close, and is opened during feeding and discharging and closed during transportation, so that the material is prevented from being sprayed on the way; (3) the feeding and discharging at any angle can be realized by arranging a plurality of groups of lugs or teeth matched with the stop mechanism, when the material in the stirring barrel is higher than the opening of the stirring barrel, the material can be stopped midway, the material higher than the opening of the stirring barrel is discharged completely, and then the material is gradually rotated downwards for discharging until the material inlet and the material outlet reach the bottom working position; (4) the invention integrates the rotary support and the rotary seal, thereby not only simplifying the structure and lightening the weight, but also facilitating the operation and maintenance and improving the reliability of the system; (5) the sealing device is in rotary connection with the stirring barrel, so that external force damage to the sealing element caused by vehicle bumping and stirring barrel deformation is reduced, abrasion is reduced, and movement resistance is reduced; (6) the lubricating work of the connecting ring as a rotary support, the sealing ring as a rotary seal and the sealing ring can be completed in one cavity, and meanwhile, as the lubricating agent lubricates the connecting ring at first and then lubricates the sealing ring and the sealing ring, the sealing ring can also play a role of a rotary oil seal while being used as a sealing element, thereby achieving multiple purposes, simplifying the structure, increasing the functions, improving the efficiency and reducing the overflow of the lubricating agent; (7) the rotary sealing device can rotate together with the stirring barrel, so that the abrasion of the rotary seal is reduced; (8) the mud penetrating the sealing ring into the rotary support in the stirring barrel can be gathered and discharged at the lubricant cavity, so that the environment can not be polluted by overflowing, and the problem of leakage is thoroughly solved.
Drawings
Fig. 1 is a schematic structural diagram of the first embodiment.
FIG. 2 is a schematic view of the second embodiment in a feeding state.
FIG. 3 is a schematic view of the second embodiment in a discharging state.
Fig. 4 is a schematic structural view of a rotary seal device portion.
Detailed Description
The technical scheme of the invention is explained in detail in the following with the accompanying drawings:
example one
As shown in fig. 1, the attached rotary seal mixer truck comprises a mixing tank 1 and a seal cover 3 located at the rear side of the mixing tank 1, wherein the mixing tank 1 is connected with the mixing tank 1 through a rotary seal device 2.
As shown in fig. 4, the rotary sealing device 2 has the following specific structure: the rear end of the stirring barrel 1 is provided with a circular rail 2-3, the inner edge of the circular rail 2-3 is connected with the rear end of the stirring barrel 1, and the circular rail 2-3 is positioned on the front side of the sealing cover 3.
The front end of the sealing cover 3 is provided with a connecting ring 2-2 sleeved outside the ring rail 2-3, and the sealing cover 3 and the connecting ring 2-2 are directly provided with sealing gaskets 2-4. The front end of the connecting ring 2-2 is provided with a fixing ring 2-1 positioned at the front side of the ring rail 2-3. The fixing ring 2-1 is split and formed by splicing more than two groups of arc-shaped fixing counter rings, and is convenient to disassemble and assemble.
The ring rail 2-3 is positioned in an annular space defined by the sealing cover 3, the connecting ring 2-2 and the fixing ring 2-1, and the ring rail 2-3 is in sliding fit with the fixing ring 2-1 and the connecting ring 2-2.
An annular sealing mechanism is also arranged in the annular space. The sealing mechanism comprises a sealing ring 2-5 clamped between the connecting ring 2-2 and the ring rail 2-3 and a sealing ring 2-6 supported by the sealing ring 2-5. The sealing rings 2-6 are made of fibers or elastic materials, the cross section of each sealing ring is square or rectangular, and the sealing rings are in one group or multiple groups. Also comprises an L-shaped sealing ring 2-5, and the inner edge of the annular part of the L-shaped sealing ring is connected with a cylindrical part.
The front end face of the ring rail 2-3 is in contact with the rear end face of the fixed ring 2-1, and the rear end face of the ring rail 2-3 is in contact with the front end face of the annular part; an annular groove is formed in the inner hole at the front end of the connecting ring 2-2, and the outer edges of the annular rail 2-3 and the annular part are located in the annular groove.
The sealing ring 2-6 is positioned in a space surrounded by the annular part, the cylindrical part, the sealing cover 3 and the connecting ring 2-2 of the sealing ring 2-5. In this embodiment, the front end surface of the seal ring 2-6 is in close contact with the rear end surface of the annular portion, the rear end surface of the seal ring 2-6 is in close contact with the front end surface of the seal cap 3, the inner circular surface of the seal ring 2-6 is in close contact with the outer circular surface of the cylindrical portion, and the outer circular surface of the seal ring 2-6 is in close contact with the inner circular surface of the connection ring 2-2.
The connecting ring 2-2, the fixing ring 2-1 and the annular part jointly limit the position of the annular rail 2-3, and the effect of rotary support is achieved. The sealing ring 2-5 also plays a role in sealing a gap between the connecting ring 2-2 and the ring rail 2-3 and also plays a role in supporting the sealing ring 2-6.
Further, a compression ring 2-7 with a wedge-shaped section is further installed in a gap between the sealing ring 2-6 and the connecting ring 2-2, and the rear end of the compression ring 2-7 is in contact with the sealing cover 3. The compression rings 2-7 are wedged between the sealing rings 2-6 and the connecting rings 2-2, so that the sealing rings 2-6 can be compressed, and the sealing effect is enhanced. A series of compression rings 2-7 with different thicknesses can be arranged, when the sealing rings 2-6 are worn and thinned continuously, the sealing effect is deteriorated, the thicker compression rings 2-7 can be replaced in time to recover the sealing effect, and the maintenance is convenient. The compression rings 2-7 can also be in other structural forms such as annular pads and the like. The clamp rings 2-7 are preferably made of a material that swells in the presence of water or oil or other lubricating medium.
And a lubricant cavity is also formed in the top of the connecting ring 2-2 and communicated with the annular groove. The top of the lubricant cavity is provided with a cover, and the lubricant cavity is also provided with oil pipes 2-8 for injecting a lubricating medium into the lubricant cavity. The lubricating agent firstly lubricates the connecting ring 2-2, and then lubricates the sealing ring 2-5 and the sealing ring 2-6, so that the sealing ring 2-6 can also play a role of rotating an oil seal while serving as a sealing element, thereby achieving multiple purposes, simplifying the structure, increasing the functions, improving the efficiency and reducing the overflow of the lubricating agent.
On the other hand, deposits of infiltrated concrete slurry tend to accumulate in the rotating support and rotating seal cavities, and these deposits can accumulate in the lubricant cavity. A box for containing lubricant can be added in the lubricant cavity, and the box is connected with lubricant pipes 2-8, which are convenient for integral disassembly and convenient for disassembling the box to remove the deposit in the box.
As shown in fig. 1, a feeding and discharging mechanism 4 is mounted on the sealing cover 3. The feeding and discharging mechanism 4 is a semi-open and semi-circular chute, the front end of the chute extends into the central charging barrel of the stirring barrel 1, and the rear end of the chute is a feeding and discharging port.
The mixer truck further comprises a stop mechanism for preventing the sealing cover 3 from rotating along with the mixing barrel 1. The sealing cover 3 is provided with lugs 2-9 or a plurality of groups of uniformly distributed convex teeth. The stop mechanism is a movable stop block which is arranged on the vehicle body and is matched with the bumps 2-9, and is controlled by oil, a cylinder or other machinery. The movable stop block is arranged on one side or both sides of the mixer truck, so that the double-safety function is realized. When the movable stop block extends to block the convex blocks 2-9, the sealing cover 3 is static relative to the body of the mixer truck. When the stop lugs 2-9 are retracted, the sealing cover 3 rotates along with the stirring barrel 1 under the action of the rotary sealing device 2.
By providing a plurality of sets of projections 2-9, the sealing cap 3 can be stopped at a desired position by the stop mechanism and the projections 2-9: when the material inlet and outlet of the material inlet and outlet mechanism 4 is upward, the material inlet and outlet is used as a material inlet; when the sealing cover 3 rotates for 180 degrees and then stops, the material inlet and the material outlet are used as the material outlet when the material inlet and the material outlet face downwards, and function switching is realized.
The specific operation is as follows: a. during discharging, the stirring barrel 1 is stopped rotating, the movable stop block is opened to separate the movable stop block from the convex block 2-9, the stirring barrel 1 is rotated to drive the fixing ring 2-1, the sealing cover 3 and the feeding and discharging mechanism 4 to rotate together for 180 degrees, the stirring barrel 1 is stopped, the movable stop block is locked until the feeding and discharging port faces downwards, and then the stirring barrel 1 is rotated to discharge materials in the discharging direction. b. During feeding, the rotary stirring barrel 1 is stopped, the movable stop dog is opened, the stirring barrel 1 is rotated, the stirring barrel 1 drives the fixing ring 2-1, the sealing cover 3, the feeding and discharging mechanism 4 and the like to rotate together for 180 degrees, the feeding and discharging port faces upwards, the rotary stirring barrel 1 is stopped, and the movable stop dog locks the lug 2-9.
When a plurality of sets of projections 2-9 or even teeth are provided, the sealing cover 3 can be stopped at more positions. The significance lies in that: when the material in the stirring barrel 1 is higher than the barrel opening, the stirring barrel can stop at the middle position between the feeding position and the discharging position, the material higher than the barrel opening is discharged completely, and then the discharging is rotated downwards gradually until the material inlet and outlet reaches the bottom working position.
Example two
As shown in fig. 2 and 3, the present embodiment is different from the first embodiment in that:
the feed inlet and the discharge outlet are also provided with a bottom plate 5 which is composed of a hard side plate, a hard plate and a soft side plate and can also be made of an integral hard or soft material. The bottom plate 5 is manually opened and closed, or is controlled to be opened and closed by an opening and closing control mechanism.
The specific structure of the opening and closing control mechanism is as follows: the bottom plate 5 is arranged at the material inlet and the material outlet in a hinged mode; the opening and closing control structure comprises a telescopic cylinder 6, the telescopic rod is an oil cylinder or an air cylinder, one end of the telescopic cylinder 6 is rotatably connected with the sealing cover 3, and the other end of the telescopic cylinder is rotatably connected with the bottom plate 5.
During the feeding or discharging, the bottom plate 5 is opened. During transportation, the bottom plate 5 is closed, so that the material is prevented from being sprayed out during transportation.
An arc-shaped plate 7 is further mounted on the rotary sealing cover 3. During feeding, the arc-shaped plate 7 is positioned above the feeding and discharging port and used as a shielding plate, so that the wind and rain can be prevented. During discharging, the arc-shaped plate 7 is positioned below the material inlet and outlet and used as a discharging groove.
A semi-open material receiving hopper with two sides heightened to exceed the center line of the opening of the mixing tank 1 is further arranged between the mixing tank 1 and the discharge chute, so that the concrete in the mixing tank 1 is prevented from overflowing in the process that the feeding and discharging mechanism 4 rotates from the feeding position to the discharging position.
Claims (10)
1. The utility model provides an appendage formula rotary seal trucd mixer, includes agitator (1) and sealed lid (3) that are located agitator (1) rear side, its characterized in that: the stirring barrel (1) is connected with the stirring barrel (1) through a rotary sealing device (2);
the stirring truck also comprises a stopping mechanism for preventing the sealing cover (3) from rotating along with the stirring barrel (1), when the stopping mechanism is in a braking position, the sealing cover (3) is static relative to the truck body of the stirring truck, and when the stopping mechanism is in a non-braking position, the sealing cover (3) rotates along with the stirring barrel (1) under the action of the rotary sealing device (2);
install feed and discharge mechanism (4) on sealed lid (3), work as the feed and discharge mouth of feed and discharge mechanism (4) is when up, and the feed and discharge mouth uses as the feed inlet, works as when the feed and discharge mouth is down, the feed and discharge mouth uses as the discharge gate.
2. The enclosed-type rotary seal mixer truck of claim 1, wherein: the feeding and discharging mechanism (4) is a chute, and the front end of the chute extends into the central charging barrel of the stirring barrel (1).
3. The enclosed-type rotary seal mixer truck of claim 1, wherein: a bottom plate (5) is also arranged at the material inlet and outlet; the mixer truck also comprises an opening and closing control mechanism for controlling the opening and closing of the bottom plate (5).
4. The enclosed-type rotary seal mixer truck according to claim 3, wherein: the bottom plate (5) is arranged at the material inlet and the material outlet in a hinged mode; the opening and closing control structure comprises a telescopic cylinder (6), one end of the telescopic cylinder (6) is rotatably connected with the sealing cover (3), and the other end of the telescopic cylinder is rotatably connected with the bottom plate (5).
5. The enclosed-type rotary seal mixer truck of claim 1, wherein: the sealing cover (3) or the rotary sealing device (2) is provided with a convex block (2-9), and the stop mechanism is a movable stop block which is arranged on the vehicle body and is used for being matched with the convex block (2-9).
6. The enclosed-type rotary seal mixer truck of claim 1, wherein: the rotary sealing device (2) comprises a circular rail (2-3) arranged at the rear end of the stirring barrel (1), the inner edge of the circular rail (2-3) is connected with the rear end of the stirring barrel (1), and the circular rail (2-3) is positioned on the front side of the sealing cover (3);
the rotary sealing device (2) further comprises a connecting ring (2-2) which is arranged at the front end of the sealing cover (3) and sleeved outside the ring rail (2-3), and a fixing ring (2-1) which is arranged at the front end of the connecting ring (2-2) and positioned on the front side of the ring rail (2-3); the ring rail (2-3) is positioned in an annular space surrounded by the sealing cover (3), the connecting ring (2-2) and the fixing ring (2-1), the ring rail (2-3), the connecting ring (2-2) and the fixing ring (2-1) are in sliding fit, and an annular sealing mechanism is further arranged in the annular space.
7. The enclosed-type rotary seal mixer truck of claim 6, wherein: the sealing mechanism in the annular space comprises a sealing ring (2-5) and a sealing ring (2-6);
the cross section of the sealing ring (2-5) is L-shaped, and the sealing ring comprises an annular part and a cylindrical part of which the front end is connected with the inner edge of the annular part;
the front end face of the ring rail (2-3) is in contact with the rear end face of the fixing ring (2-1), and the rear end face of the ring rail (2-3) is in contact with the front end face of the annular part; an annular groove is formed in the inner side of the front end of the connecting ring (2-2), and the outer edges of the annular rail (2-3) and the annular part are located in the annular groove;
the sealing ring (2-6) is positioned in a space surrounded by the annular part, the cylindrical part, the sealing cover (3) and the connecting ring (2-2).
8. The enclosed-type rotary seal mixer truck of claim 7, wherein: a gap is reserved between the outer circular surface of the sealing ring (2-6) and the connecting ring (2-2), a compression ring (2-7) with a wedge-shaped section is installed in the gap, and the rear end of the compression ring (2-7) is in contact with the sealing cover (3).
9. The enclosed-type rotary seal mixer truck of claim 8, wherein: the top of the connecting ring (2-2) is also provided with a lubricant cavity, and the lubricant cavity is communicated with the annular groove.
10. The enclosed-type rotary sealed mixer truck according to any one of claims 1 to 9, wherein: an arc-shaped plate (7) is further mounted on the rotary sealing cover (3); when feeding, the arc-shaped plate (7) is positioned above the material inlet and outlet and is used as a shielding plate; during discharging, the arc-shaped plate (7) is positioned below the material inlet and the material outlet and is used as a discharging groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010198773.0A CN111203984A (en) | 2020-03-20 | 2020-03-20 | Attached rotary sealing mixer truck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010198773.0A CN111203984A (en) | 2020-03-20 | 2020-03-20 | Attached rotary sealing mixer truck |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111203984A true CN111203984A (en) | 2020-05-29 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010198773.0A Pending CN111203984A (en) | 2020-03-20 | 2020-03-20 | Attached rotary sealing mixer truck |
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| Country | Link |
|---|---|
| CN (1) | CN111203984A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111761730A (en) * | 2020-07-11 | 2020-10-13 | 山东精砼工程机械股份有限公司 | Self-protection multi-angle sensing device of mixer truck |
| CN112855937A (en) * | 2021-02-08 | 2021-05-28 | 山东精砼工程机械股份有限公司 | Built-in pressure rotary sealing device and control method |
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| CN202764021U (en) * | 2012-09-17 | 2013-03-06 | 盛富春 | Rotary sealing mechanism for feed and discharge port of mixing barrel of concrete mixing transport truck |
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| CN109986698A (en) * | 2019-05-08 | 2019-07-09 | 盛镝 | A kind of spiral rotary seal rotating bucket self-sealing |
| CN211993578U (en) * | 2020-03-20 | 2020-11-24 | 山东精砼工程机械股份有限公司 | Attached rotary sealing mixer truck |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111761730A (en) * | 2020-07-11 | 2020-10-13 | 山东精砼工程机械股份有限公司 | Self-protection multi-angle sensing device of mixer truck |
| CN112855937A (en) * | 2021-02-08 | 2021-05-28 | 山东精砼工程机械股份有限公司 | Built-in pressure rotary sealing device and control method |
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