CN209395017U - The mixer truck rotary seal of roller on-fixed rotating shaft - Google Patents
The mixer truck rotary seal of roller on-fixed rotating shaft Download PDFInfo
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- CN209395017U CN209395017U CN201822101155.0U CN201822101155U CN209395017U CN 209395017 U CN209395017 U CN 209395017U CN 201822101155 U CN201822101155 U CN 201822101155U CN 209395017 U CN209395017 U CN 209395017U
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- agitator
- feeding cylinder
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Abstract
The utility model discloses a kind of mixer truck rotary seals of roller on-fixed rotating shaft, mixer truck includes agitator and moving parts, equipped with the rotary sealing lid turned round with agitator, through-hole is offered in the middle part of rotary sealing lid, through hole is support ring, feed hopper is installed on moving parts, the exit of feed hopper is connected with the feeding cylinder across through-hole, there is gap between support ring and charging drum outer wall, sealing mechanism flexible is fixedly installed in support ring, to realize the sealing between rotary sealing lid and feeding cylinder；The outer wall of feeding cylinder is equipped with ring；It further include hold-down mechanism, moving parts is pressed rotary sealing lid in agitator tail portion by roller hold-down mechanism.The problems such as the utility model breaks through Traditional Thinking, eliminates slewing supporting device, avoids the parts damages of resetting bring, leakage, and reduce later maintenance workload, it reduces costs.
Description
Technical field
The utility model relates to a kind of rotary seals applied in concrete mixer truck.
Background technique
The agitator of traditional concrete mixing and transporting car be it is open, it is poor, easy that there are weatherabilities and travel safety
Spill many disadvantages such as leakage, passability be bad.Applicant in 2010 proposes invention, and " the mixing drum revolution of concrete mixing and transporting car is close
Seal apparatus ", solve the above problem at one stroke, and bring installation weight big, maintenance amount is big, and vulnerable part is more, renewal cost
The problems such as higher.
08 month 2017 filed in 29 days, the patent " coagulation of hollow shaft rotary sealing that notification number is CN107344401A
Native agitator truck ", solve the above problem, but it brings new problem: the outer circle of rotary sealing lid and the stirring again
Bucket is in contact, agitator is followed to turn round, meanwhile, rotary sealing lid is mounted on movable stand by slewing supporting device, that is, is turned round
Sealing cover is positioned by two groups of swing mechanisms, however in practical application, agitator will appear different journeys under concrete gravity effect
The sinking of degree, and mixer truck inevitably jolts in the process of moving, the axis of agitator is not overlapped necessarily with the axis of revolving support,
This is resulted in: (1) sealing element between agitator and rotary sealing lid and slewing supporting device stress are larger, are easily damaged；
(2) closure of rotary sealing lid will receive influence, is easy to appear leakage, influences sealing effect.
On the other hand, revolving support is easily accessible silt, its resistance is caused to increase, until obstruction, and maintenance work itself
Measure larger, higher cost.However slewing supporting device is the essential important spare part of concrete mixer truck, and mixer truck
Use environment is difficult to improve.
Utility model content
The utility model proposes a kind of mixer truck rotary seal of roller on-fixed rotating shaft, purpose exists
In: solve the problems, such as that components rapid wear, poor sealing effect and maintenance cost are high.
Technical solutions of the utility model are as follows:
The mixer truck rotary seal of roller on-fixed rotating shaft, the mixer truck include installing on the car body simultaneously energy
Enough agitators turn round relative to car body and the moving parts that on the car body and can be moved with respect to the car body is installed, is equipped with back
Turn sealing cover, the rotary sealing lid outer edge is in contact with the stirring bucket outlet outer edge so that rotary sealing covers is stirring
It is turned round with agitator relative to moving parts under the driving of bucket；Through-hole is offered in the middle part of the rotary sealing lid；The moving portion
Feed hopper is installed, the exit of the feed hopper is connected with across the rotary sealing lid through-hole and protrudes into the stirring on part
The feeding cylinder of bucket, it is characterised in that: the rotary sealing lid includes the support ring positioned at the through hole, the support ring with into
There is gap between barrel outer wall, move support ring along feeding cylinder, when mixer truck traveling can thus be jolted
The impact force of generation is dissolved, to reduce the adverse effect to sealing effect and component life；
Be fixedly installed with sealing mechanism flexible in the support ring, the sealing mechanism be in contact with the feeding cylinder with
Realize the sealing between rotary sealing lid and feeding cylinder；
The outer wall of the feeding cylinder is equipped with ring, and the ring is located at the front side of support ring；
It further include roller hold-down mechanism, the moving parts is pressed the rotary sealing lid by roller hold-down mechanism
It is pressed in agitator tail portion.
As further improvement of the utility model: the hold-down mechanism is the contact roller of installation on the moving part；Institute
Contact roller is stated to be in contact with the support ring.
As further improvement of the utility model: the sealing mechanism is sealing inner ring, the fixed peace of the sealing inner ring
In support ring, inner hole is in contact with the outer wall of the feeding cylinder.
As further improvement of the utility model: be additionally provided with center barrel in the agitator, the center barrel with
Agitator revolution, the rear end of the center barrel be in contact with the front end face for sealing inner ring or in the sealing
There is gap between the front end face of ring.
As further improvement of the utility model: be additionally provided with center barrel in the agitator, the center barrel with
The agitator revolution；The sealing mechanism includes circumferential sealing ring and end face sealing ring, the inner hole of the circumferential sealing ring with
The outer wall of the feeding cylinder is in contact, and the rear end of the center barrel is in contact with the front end face of the end face sealing ring.
As further improvement of the utility model: being also set up on front side of circumferential sealing ring, between support ring and feeding cylinder
There is baffle ring, effect is played and the lid slid on feeding cylinder is pushed to move back with moving parts when opening lid
It is dynamic.
As further improvement of the utility model: the moving parts offers pilot hole, installation in the pilot hole
There is the electromagnet for adsorbing rotary sealing lid, is also equipped with compressed spring, described compressed spring one end on the inside of the pilot hole
It is connected with moving parts, the other end is connected with the electromagnet, for pushing electromagnet to rear side.
As further improvement of the utility model: being further sleeved with annular offset plate, the annular offset plate on the feeding cylinder
Positioned at the front side of ring, the front end of annular offset plate is located at the front side of feeding cylinder front end, and the inner wall in portion is provided with saw-tooth ring behind,
Play the role of taking the silt being trapped on the charging basket inner wall of center out of when moving parts moves backward.
Compared with the existing technology, the utility model has the positive effect that: (1) the utility model is eliminated moving portion
Fixed and gyroscopic action slewing supporting device is played between part and rotary sealing lid, is set between rotary sealing lid and feeding cylinder
Sealing inner ring flexible is set, and there are gaps between the support ring of rotary sealing lid and the feeding cylinder, and make rotary sealing
Lid can be moved forward and backward, while ensuring rotary sealing lid and stirring using hold-down mechanism along feeding cylinder relative to moving parts
Close contact between bucket, moves rotary sealing lid along the movement of agitator as best one can, avoids resetting bring
The problems such as parts damages and leakage；(2) due to eliminating the slewing supporting device of existing mixer truck indispensability, this field has been broken
Inertial thinking has achieved the purpose that the workload and cost for mitigating weight, reducing production cost, reducing later maintenance, has solved
Around a series of unsolved problems long of revolving support；(3) pressure is applied to rotary sealing lid using roller hold-down mechanism
When, when rotary sealing lid jolts mobile with agitator, contact roller will not influence the rotation of rotary sealing lid；(4) electromagnet is used
Device holds rotary sealing lid, it is ensured that the normal folding of rotary sealing lid；(5) it for the stirring barrel structure for having center barrel, adopts
With the twice fixing seal of the sealing inner ring of the sealing outer ring and central tube nozzle of agitator bung hole, and sealing inner ring and charging
Rotary sealing between cylinder outer circle, has well solved the rotary sealing problem of agitator, and maintenance is few.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of embodiment one.
Fig. 2 is the structural schematic diagram of embodiment two.
Fig. 3 is the structural schematic diagram of embodiment three.
Fig. 4 is the structural schematic diagram of example IV.
Fig. 5 is the structural schematic diagram of electromagnetic gripping mechanism section in embodiment one.
Specific embodiment
The technical solution that according to the present invention will be described in detail below with reference to the accompanying drawings:
Embodiment one
Such as Fig. 1, a kind of mixer truck rotary seal of roller on-fixed rotating shaft, the mixer truck includes being mounted on
And it can be relative to the agitator and installation that car body turns round on the car body and the movement that can move with respect to the car body on car body
Component 11 is equipped with rotary sealing lid 1, and 1 outer edge of rotary sealing lid is in contact with the stirring bucket outlet outer edge, contacts
Place is equipped with sealing outer ring, so that rotary sealing lid 1 is turned round with agitator relative to moving parts 11 under the driving of agitator；Institute
It states and offers through-hole in the middle part of rotary sealing lid 1；Feed hopper 2, the exit of the feed hopper 2 are installed on the moving parts 11
It is connected with across 1 through-hole of rotary sealing lid and protrudes into the feeding cylinder 4 of the agitator.
The rotary sealing lid 1 includes the support ring 7 positioned at the through hole, and the inner headed face of the support ring 7 is equipped with
The wear ring of rubber material has gap between 4 outer wall of the wear ring and the feeding cylinder, so that agitator jolts or sinks
When, rotary sealing lid 1 is mobile with agitator, will not be with the mechanical interferences such as feeding cylinder 4, moving parts 11；When rotary sealing lid 1 to
When moving afterwards, being detached from the contact with agitator, wear ring and 4 sliding contact of feeding cylinder.
Seal aspect is fixedly installed with sealing mechanism flexible, the sealing mechanism and the charging in the support ring 7
Cylinder 4 is in contact to realize the sealing between rotary sealing lid 1 and feeding cylinder 4.
Specifically, the sealing mechanism is sealing inner ring 6, the sealing inner ring 6 is fixedly mounted in support ring 7, inner hole
It is in contact with the outer wall of the feeding cylinder 4.The elasticity modulus of the sealing inner ring 6 is lower than the sealing outer ring, and use is softer
Rubber or with sealing leaf joint sealing ring, with sealing outer ring formed arrange in pairs or groups, sealing outer ring be primary seal, with its compress static seal
Based on, sealing inner ring 6 is slightly soft, the biggish sealing device of decrement, or with sealing leaf joint, is used for movable sealing, and will not
Influence movement of the rotary sealing lid 1 relative to feeding cylinder 4.
When being provided with center barrel 3 in the agitator, the center barrel 3 with the agitator turn round, it is described in
The rear end of heart barrel 3 is equipped with sealing flange, and the inner end of the sealing inner ring 6 is in contact with the sealing flange, realizes feeding cylinder 4
With the sealing between center barrel 3.
Ring 8 is fixed on the outer wall of the feeding cylinder 4, the ring 8 is located at the front side of support ring 7.The ring 8
There is gap between support ring 7, and the gap wants sufficiently large, it is ensured that the compression of rotary sealing lid 1.
In the front end of ring 8, concrete can be prevented along feeding cylinder 4 using the annular offset plate 14 generallyd use now
It overflows in gap between center barrel 3.The front end of the annular offset plate 14 is located at the front side of 4 front end of feeding cylinder.Further,
Lateral saw-tooth ring or wire brush can be increased in the rear portion of annular offset plate 14, the part of close ring 8, in mobile mechanism
When retrogressing, concrete, the sandstone in center barrel 3 are taken out of.
It further include hold-down mechanism, the moving parts 11 is being stirred the rotary sealing lid 1 pressing by hold-down mechanism
Bucket tail portion.
Specifically, the hold-down mechanism is the contact roller 9 being mounted on moving parts 11；The contact roller 9 and the branch
Pushing out ring 7 is in contact.
The hold-down mechanism can also be other devices such as ball of the pressing on rotary sealing lid 1, for transmitting axial direction
Pressure is in close contact rotary sealing lid 1 and agitator, while not limiting the position of rotary sealing lid 1, is allowed to relative to movement
Component 11 is in opposite quick condition, avoids interfering its revolution and movement.
Further, the back side of the support ring 7 can be equipped with ring rail when necessary, and the contact roller 9 matches with the ring rail
It closes, there are appropriate gaps at cooperation, on the one hand do not influence the rotary sealing lid 1 to float and rotate, on the other hand there is certain guiding
Effect.
Moving parts 11 can be movable support body, movable plate or other structures form, between car body by sliding rail or its
The realization of its guiding mechanism is slidably connected, and oil cylinder or cylinder is equipped on car body, moving parts 11 is under the driving of oil cylinder or cylinder
It is moved forward and backward relative to car body, moving parts 11, feed hopper 2, feeding cylinder 4 and ring 8 constitute the entirety being fixedly connected.
Moving parts 11 forward when, be mounted on 11 front end of moving parts contact roller 9 compress rotary sealing lid 1；Moving parts 11 is backward
When, feed hopper 2, feeding cylinder 4 and ring 8 are all synchronized and are moved backward, and ring 8 is in contact with support ring 7, pushes support ring 7 backward,
Rotary sealing lid 1 is set to be detached from agitator, to realize the mobile folding of rotary sealing lid 1.
Further, such as Fig. 5, pilot hole can also be opened up on the moving parts 11, is equipped in the pilot hole
For adsorbing the electromagnet 10 of rotary sealing lid 1, compressed spring 12, the compressed spring 12 are also equipped on the inside of the pilot hole
One end is connected with moving parts 11, and the other end is connected with the electromagnet 10, for pushing electromagnet 10 to leave to rear side
Rotary sealing lid 1 avoids friction and damage between them.The front end of electromagnet 10 is electromagnetic action block, and rear portion is guide rod.It needs
When opening rotary sealing lid 1, agitator stops revolution, and electromagnet 10 is powered, and compressed spring 12 is compressed, electromagnet 10 stretches out
It is adsorbed on rotary sealing lid 1, then moving parts 11 acts under oil cylinder effect, will turn round by the holding power of electromagnet 10
Sealing cover 1 is opened.After rotary sealing lid 1 is closed, 10 power loss of electromagnet, compressed spring 12 withdraw electromagnet 10, rotary sealing lid 1
By hold-down mechanism pressing on agitator, agitator is followed to turn round.
Embodiment two
Such as Fig. 2, the difference between this embodiment and the first embodiment lies in, 3 rear end of center barrel or with the sealing inner ring 6
There is gap between front end face.
Embodiment three
Such as Fig. 3, the difference between this embodiment and the first embodiment lies in, the sealing mechanism is not the sealing inner ring 6 being integrated,
But split type structure, including circumferential sealing ring 61 and end face sealing ring 62, the inner hole of the circumferential sealing ring 61 and it is described into
The outer wall of barrel 4 is in contact, and the rear end of the center barrel 3 is in contact with the front end face of the end face sealing ring 62.
Example IV
Such as Fig. 4, the present embodiment is further improvement on the basis of embodiment three: in 61 front side of circumferential sealing ring, support
It is additionally provided with baffle ring 13 between ring 7 and feeding cylinder 4, all there is gap at 13 inside and outside circle of baffle ring, for preventing concrete from entering circle
At all sealing rings 61.
Claims (9)
1. the mixer truck rotary seal of roller on-fixed rotating shaft, the mixer truck include installation on the car body and can
On the car body and the moving parts (11) that can move with respect to the car body relative to the agitator of car body revolution and installation, it is equipped with
Rotary sealing lid (1), rotary sealing lid (1) outer edge are in contact with the stirring bucket outlet outer edge so that rotary sealing
(1) is covered to turn round with agitator relative to moving parts (11) under the driving of agitator；It is opened up in the middle part of the rotary sealing lid (1)
There is through-hole；It is equipped with feed hopper (2) on the moving parts (11), the exit of the feed hopper (2) is connected with across described
Rotary sealing lid (1) through-hole and the feeding cylinder (4) for protruding into the agitator, it is characterised in that: the rotary sealing lid (1) includes
Support ring (7) positioned at the through hole has gap between the support ring (7) and feeding cylinder (4) outer wall；
It is fixedly installed with sealing mechanism flexible on the support ring (7), the sealing mechanism is in contact with the feeding cylinder (4)
To realize the sealing between rotary sealing lid (1) and feeding cylinder (4)；
The outer wall of the feeding cylinder (4) is equipped with ring (8), and the ring (8) is located at the front side of support ring (7)；
It further include roller hold-down mechanism, the moving parts (11) passes through roller hold-down mechanism for the rotary sealing lid
(1) pressing is in agitator tail portion.
2. the mixer truck rotary seal of roller on-fixed rotating shaft as described in claim 1, it is characterised in that: described
Hold-down mechanism is the contact roller (9) being mounted on moving parts (11)；The contact roller (9) is in contact with the support ring (7).
3. the mixer truck rotary seal of roller on-fixed rotating shaft as described in claim 1, it is characterised in that: described
Sealing mechanism is sealing inner ring (6), and the sealing inner ring (6) is fixedly mounted on support ring (7), inner hole and the feeding cylinder
(4) outer wall is in contact.
4. the mixer truck rotary seal of roller on-fixed rotating shaft as claimed in claim 3, it is characterised in that: described
It is additionally provided in agitator center barrel (3), the center barrel (3) is turned round with the agitator, after the center barrel (3)
It holds and is in contact with the front end face of sealing inner ring (6) or there is gap between the front end face of sealing inner ring (6).
5. the mixer truck rotary seal of roller on-fixed rotating shaft as described in claim 1, it is characterised in that: described
It is additionally provided in agitator center barrel (3), the center barrel (3) is turned round with the agitator；The sealing mechanism includes circle
All sealing rings (61) and end face sealing ring (62), the outer wall phase of the inner hole and the feeding cylinder (4) of the circumferential sealing ring (61)
Contact, the rear end of the center barrel (3) is in contact with the front end face of the end face sealing ring (62).
6. the mixer truck rotary seal of roller on-fixed rotating shaft as claimed in claim 5, it is characterised in that: in circle
Baffle ring (13) are additionally provided on front side of all sealing rings (61), between support ring (7) and feeding cylinder (4).
7. the mixer truck rotary seal of roller on-fixed rotating shaft as described in claim 1, it is characterised in that: described
Moving parts (11) offers pilot hole, and the electromagnet (10) for adsorbing rotary sealing lid (1) is equipped in the pilot hole,
It being also equipped with compressed spring (12) on the inside of the pilot hole, described compressed spring (12) one end is connected with moving parts (11),
The other end is connected with the electromagnet (10), for pushing electromagnet (10) to rear side.
8. the mixer truck rotary seal of the roller on-fixed rotating shaft as described in claim 1 to 7 is any, feature exist
In: it is further sleeved with annular offset plate (14) on the feeding cylinder (4), the annular offset plate (14) is located at the front side of ring (8), annular
The front end of offset plate (14) is located at the front side of feeding cylinder (4) front end.
9. the mixer truck rotary seal of roller on-fixed rotating shaft as claimed in claim 8, it is characterised in that: described
Annular offset plate (14) rear portion is additionally provided with sawtooth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822101155.0U CN209395017U (en) | 2018-12-14 | 2018-12-14 | The mixer truck rotary seal of roller on-fixed rotating shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822101155.0U CN209395017U (en) | 2018-12-14 | 2018-12-14 | The mixer truck rotary seal of roller on-fixed rotating shaft |
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| CN209395017U true CN209395017U (en) | 2019-09-17 |
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| CN201822101155.0U Active CN209395017U (en) | 2018-12-14 | 2018-12-14 | The mixer truck rotary seal of roller on-fixed rotating shaft |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109366736A (en) * | 2018-12-14 | 2019-02-22 | 烟台盛利达工程技术有限公司 | The mixer truck rotary seal of on-fixed rotating shaft |
| CN110625811A (en) * | 2019-10-31 | 2019-12-31 | 河北岳如信息科技有限公司 | Concrete mixing device capable of preventing solidification |
| 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 |
-
2018
- 2018-12-14 CN CN201822101155.0U patent/CN209395017U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109366736A (en) * | 2018-12-14 | 2019-02-22 | 烟台盛利达工程技术有限公司 | The mixer truck rotary seal of on-fixed rotating shaft |
| WO2020119390A1 (en) * | 2018-12-14 | 2020-06-18 | 烟台盛利达工程技术有限公司 | Rotary sealing apparatus for non-fixed rotary axis concrete mixer vehicle |
| 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 |
| CN110625811A (en) * | 2019-10-31 | 2019-12-31 | 河北岳如信息科技有限公司 | Concrete mixing device capable of preventing solidification |
| CN110625811B (en) * | 2019-10-31 | 2021-08-06 | 永州市鑫海混凝土有限公司 | Concrete mixing device capable of preventing solidification |
| 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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