CN105109394B - Dumper and its loading space sealing mechanism - Google Patents
Dumper and its loading space sealing mechanism Download PDFInfo
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- CN105109394B CN105109394B CN201510583332.1A CN201510583332A CN105109394B CN 105109394 B CN105109394 B CN 105109394B CN 201510583332 A CN201510583332 A CN 201510583332A CN 105109394 B CN105109394 B CN 105109394B
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- loading space
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Abstract
The invention discloses loading space sealing mechanisms, are specifically provided with on-off valve, supercharging device and expanding sealing strips, and expanding sealing strips are hollow structure；When needing to seal the gap between loading space ontology and dump door (such as when loading space cargo transport), supercharging device is connected to by on-off valve with expanding sealing strips, the pressure medium that supercharging device provides enters inside expanding sealing strips, under pressure, expanding sealing strips increase, and then the gap between loading space ontology and dump door is blocked；When without sealing the gap between loading space ontology and dump door (such as unloading or non-loading state), expanding sealing strips are connected to (such as atmosphere) by on-off valve with environment under low pressure, flow out the pressure medium in expanding sealing strips, expanding sealing strips reduce.On this basis, the present invention also proposes a kind of dumper with above-mentioned loading space sealing mechanism.
Description
Technical field
The present invention relates to loading space sealing techniques, and in particular to a kind of dumper and its loading space sealing mechanism.
Background technique
Dumper is a kind of haulage vehicle that can voluntarily unload cargo, has the characteristics that unloading, mobility strong automatically, can
Cargo handling efficiency is improved, labour and time cost is saved, has become one of most important vehicle of current cargo transport, it
It is widely applied in the industries such as urban construction, highway construction, hydraulic engineering and energy industry.
As shown in Figure 1, dumper generally includes chassis 10 (illustrating only a part on chassis in figure), loading space and lifting dress
It sets, loading space and lifting device are arranged on chassis, wherein loading space includes loading space ontology 20 and dump door 30, and dump door 30 pushes up
End is hinged with loading space ontology 20；One end (or side) and the chassis 10 of loading space ontology 20 are rotatably connected, and lifting device is usually
One end of telescopic oil cylinder 40, telescopic oil cylinder 40 is connect with chassis 10, and the other end is connect with 20 bottom of loading space ontology；When unloading, stretch
Contracting oil cylinder 40 extends, and loading space ontology 20 is driven to rotate relative to chassis 10, meanwhile, the bottom end of dump door 30 is detached from and loading space ontology 20
Contact, cargo glides along the bottom plate of loading space ontology under the effect of gravity, finally from loading space ontology 20 and 30 bottom end of dump door it
Between gap unload and drop down onto ground.
When normal operation, dump door is needed through normally open/closing, and cargo is between dump door and loading space ontology in order to prevent
Leakage, sealing strip is arranged in the junction usually between dump door and loading space ontology, i.e., in loading space ontology and dump door contact position
Rubber strip is set, loading space ontology and dump door are compressed by the self weight and latch hook of dump door, realize sealing function, this sealing
Mode is referred to alternatively as passive seal；The shortcomings that sealing structure is: rubber strip setting is too small, then sealing effect cannot ensure,
Rubber strip setting is excessive, then rubber strip abrasion is very fast；In addition, to will lead to rubber strip uneven for abrasion after a period of use,
And then influence sealing effect.
Summary of the invention
In view of this, the present invention proposes a kind of loading space sealing mechanism, it, can be to avoid conventional close using the loading space sealing mechanism
Strip of paper used for sealing is easy the problem of premature failure.On this basis, the present invention also proposes a kind of dumper.
As in a first aspect, specifically including loading space ontology the invention proposes a kind of loading space sealing mechanism, dump door, leading to
Disconnected valve, expanding sealing strips and supercharging device；The top of the dump door and loading space ontology are hinged, and the expanding sealing strips are hollow
Structure is set to the contact position of loading space ontology and dump door；The supercharging device, on-off valve and expanding sealing strips are sequentially gone here and there
Connection, the supercharging device are used to provide pressure medium for expanding sealing strips, and the on-off valve is used to control the increasing of expanding sealing strips
Pressure and decompression, the expanding sealing strips according to its internal pressure for being expanded.
In preferred technical solution, seal groove is provided on the loading space ontology, the expanding sealing strips are set to close
In sealing groove.
In preferred technical solution, the expanding sealing strips are made of rubber.
Loading space sealing mechanism proposed by the present invention is provided with on-off valve, supercharging device and expanding sealing strips, and Expansion sealing
Item is hollow structure；When needing to seal the gap between loading space ontology and dump door (such as when loading space cargo transport), on-off valve will
Supercharging device is connected to expanding sealing strips, and the pressure medium that supercharging device provides enters inside expanding sealing strips, is made in pressure
Under, expanding sealing strips increase, and then the gap between loading space ontology and dump door is blocked；When without sealing loading space ontology
When gap between dump door (such as unloading or non-loading state), expanding sealing strips are connected to by on-off valve with environment under low pressure
(such as atmosphere) flows out the pressure medium in expanding sealing strips, and expanding sealing strips reduce.
Since the sealing strip of conventional structure is prone to wear, aging, swelliong power decaying is very fast, causes sealing effect that can not obtain
To guarantee, it may appear that the problem of premature failure；Loading space sealing mechanism proposed by the present invention, the expansion effect of expanding sealing strips is by it
Internal pressure determines, and the internal pressure can according to need carry out active accommodation；Therefore, compared with conventional sealing strip, benefit
The sealing effect and service life of loading space can be effectively promoted with above-mentioned loading space sealing mechanism.
As second aspect, the invention proposes a kind of dumper, chassis, lifting device and above-mentioned any one are specifically included
The loading space sealing mechanism of item；The loading space ontology is set on the chassis, and one end and chassis are hinged；The lifting device
Between chassis and loading space ontology, for driving loading space ontology to rotate relative to chassis.
In preferred technical solution, the dumper includes controller and lifting sensor；The lifting sensor with
Controller electrical connection, for detecting the lifting state of the loading space；The controller is electrically connected with on-off valve, the controller root
The on-off valve events are controlled according to the lifting state.
In preferred technical solution, the lifting device includes telescopic oil cylinder, and the lifting sensor is displacement sensing
Device；Institute's displacement sensors are set on telescopic oil cylinder, the displacement of the piston rod for detecting the telescopic oil cylinder.
In preferred technical solution, the lifting device includes telescopic oil cylinder, and the lifting sensor is first pressure
Sensor；The first pressure sensor is set on telescopic oil cylinder, the pressure in rodless cavity for detecting the telescopic oil cylinder.
In preferred technical solution, the dumper further includes second pressure sensor；The second pressure sensor
It is electrically connected with the controller, the gravity born for detecting the loading space ontology；The controller is according to the gravity and lifting shape
State controls the on-off valve events.
In preferred technical solution, when the gravity reaches predetermined value and loading space ontology is in non-lifting state, institute
It states controller control on-off valve events and then is connected to supercharging device with expanding sealing strips.
Dumper proposed by the present invention is provided with above-mentioned loading space sealing mechanism, can have using above-mentioned loading space sealing mechanism
Effect promotes the sealing effect and service life of loading space；Therefore, compared with prior art, the using effect of above-mentioned dumper more preferably,
Maintenance cost is lower.
It is especially needed, it is emphasized that in preferred technical solution, the dumper be provided with controller, lifting sensor and
Second pressure sensor can automatically be monitored the state of dumper, and be expanded according to the operating condition adjust automatically of dumper
The state of sealing strip, to achieve the effect that automatic-sealed.
Detailed description of the invention
The attached drawing for constituting a part of the invention is used to provide further understanding of the present invention, schematic reality of the invention
It applies example and its explanation is used to explain the present invention, do not constitute improper limitations of the present invention.In the accompanying drawings:
Fig. 1 is the partial structure diagram of dumper in the related technology；
Fig. 2 is the control principle drawing for the loading space sealing mechanism that the specific embodiment of the invention provides；
Fig. 3 is the partial structure diagram for the loading space that the specific embodiment of the invention provides
Description of symbols:
In Fig. 1:
10-chassis 20-loading space ontology 30-dump door, 40-telescopic oil cylinders
In Fig. 2 to 3:
1-supercharging device 2-pressure reducing valve, 3-on-off valve, 4-expanding sealing strips
5-first pressure sensor 6-second pressure sensor 7-controller, 8-loading space ontologies
9-dump doors
Specific embodiment
It should be noted that in the absence of conflict, the feature in embodiment and embodiment in the present invention can phase
Mutually combination.2 to 3 pairs of specific embodiments of the present invention are described in detail with reference to the accompanying drawing.
The dumper that the specific embodiment of the invention proposes includes chassis, loading space and lifting device, and loading space and lifting device are equal
It is arranged on chassis, wherein as shown in figure 3, loading space includes loading space ontology 8 and dump door 9,9 top of dump door and loading space ontology 8
Hingedly；One end of loading space ontology 8 is rotatably connected with chassis；Lifting device can be telescopic oil cylinder, can also be by telescopic oil cylinder
It is combined with link mechanism；In the present embodiment, lifting device is telescopic oil cylinder, and one end of telescopic oil cylinder is connect with chassis,
The other end is connect with 8 bottom of loading space ontology；When unloading, telescopic oil cylinder elongation drives loading space ontology 8 to rotate relative to chassis, meanwhile,
The bottom end of dump door 9 is detached to glide along the bottom plate of loading space ontology 8 under the effect of gravity with the contact of loading space ontology 8, cargo, finally
It is unloaded from the gap between 9 bottom end of loading space ontology 8 and dump door and drops down onto ground.
The cargo clearance leakage between loading space ontology 8 and dump door 9 during transportation in order to prevent, on the dumper
It is provided with first pressure sensor 5, second pressure sensor 6, controller 7 and loading space sealing mechanism, in addition to loading space ontology 8 and is unloaded
Goods door 9, loading space sealing mechanism are additionally provided with on-off valve 3, expanding sealing strips 4, pressure reducing valve 2 and supercharging device 1；Wherein, it expands close
Strip of paper used for sealing 4 is hollow structure, the contact position of loading space ontology 8 Yu dump door 9 is mounted on, (it should be noted that contact position here is
Refer to dump door 9 and 8 articulated position of loading space ontology hereinafter, when non-lifting state, the position corresponding with dump door 9 of loading space ontology 8
It sets).
As shown in Fig. 2, supercharging device 1, pressure reducing valve 2, on-off valve 3 and expanding sealing strips 4 are sequentially connected in series, controller 7 is distinguished
It is electrically connected with first pressure sensor 5, second pressure sensor 6 and on-off valve 3；First pressure sensor 5 is set to flexible oil
The pressure in rodless cavity on cylinder, for detecting telescopic oil cylinder；Second pressure sensor 6 is set on loading space ontology 8, for examining
Survey the gravity that loading space ontology 8 is born；Controller 7 is according to the feedback control of first pressure sensor 5 and second pressure sensor 6
On-off valve 3 acts；The specific working principle is as follows:
1) during transportation, loading space ontology 8 bears loading space self weight and goods weight, loading space are in non-lifting state, this
When, the gravity that second pressure sensor 6 detects is self-possessed more than loading space, and the pressure that first pressure sensor 5 detects is lower；For
Prevent cargo from leaking between loading space ontology 8 and dump door 9, when gravity that second pressure sensor 6 detects is more than self weight
When certain value (such as three point one of rated load), controller 7 controls the work of the right position of on-off valve 3, at this point, the P port of on-off valve 3
Be connected to A port, supercharging device 1 provide pressure medium through pressure reducing valve 2 decompression after successively through P port, A port enter expansion it is close
Strip of paper used for sealing 4, under pressure, expanding sealing strips 4 swell, to block the gap between loading space ontology 8 and dump door 9.
2) in Discharging Process, loading space is in lifting state, and the stress of telescopic oil cylinder significantly increases, correspondingly, the first pressure
The pressure that force snesor 5 detects also increases, and when the pressure reaches predetermined value, controller 7 controls the work of 3 left position of on-off valve,
At this point, the A port of on-off valve 3 is connected to T port, the pressure medium in expanding sealing strips 4 is successively flowed to through A port, T port
In environment under low pressure, make the pressure reduction in expanding sealing strips 4, finally shrinks expanding sealing strips 4；Expanding sealing strips 4 are reduced to exist
Abrasion in Discharging Process.
In the above-described embodiments, expanding sealing strips 4 may be mounted on loading space ontology 8, also may be mounted at dump door 9
On；In order to facilitate arrangement, preferably expanding sealing strips 4 are mounted on loading space ontology 8.In more preferably embodiment, loading space ontology 8
Tail portion be provided with U-shaped seal groove, expanding sealing strips 4 are mounted in U-shaped seal groove, and U-shaped seal groove can give expanding sealing strips 4
Preferable support is provided, improves its stress, and reduce the bare area of expanding sealing strips 4.
In above-mentioned example, pressure medium specifically can be gas or liquid；Expanding sealing strips 4 are made of elastic material,
Preferably rubber.
It in other embodiments can be using the displacement of the piston rod of displacement sensor detection telescopic oil cylinder, then according to work
The displacement of stopper rod judges whether loading space is in lifting state, is such as in lifting state, and controller 7 controls on-off valve 3 left position work
Make, to make 4 pressure release of expanding sealing strips.Due to the presence of displacement sensor, correspondingly, no setting is required in this embodiment first
Pressure sensor 5.
It needs to be emphasized that in above-described embodiment work can be judged automatically according to the feedback of sensor in controller 7
Condition, and then realize automatic-sealed.Under the thinking of low cost and simplified structure, controller 7 and corresponding biography can also be dispensed
Sensor, when needing to seal, the state of manual switching on-off valve 3, and then achieve the effect that make the pressurization of expanding sealing strips 4 or pressure release.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (6)
1. a kind of dumper, including chassis, lifting device and loading space sealing mechanism, which is characterized in that further include controller (7) and
Lift sensor and second pressure sensor (6)；The loading space sealing mechanism includes loading space ontology (8), dump door (9), on-off
Valve (3), expanding sealing strips (4) and supercharging device (1)；The top and loading space ontology (8) of the dump door (9) are hingedly, described swollen
Swollen sealing strip (4) is hollow structure, is set to the contact position of loading space ontology (8) Yu dump door (9)；The supercharging device (1) is led to
Disconnected valve (3) and expanding sealing strips (4) are sequentially connected, and the supercharging device (1), which is used to provide pressure for expanding sealing strips (4), to be situated between
Matter, the on-off valve (3) are used to control the pressurization and decompression of expanding sealing strips (4), and the expanding sealing strips (4) are used for according to it
Internal pressure is expanded；The loading space ontology (8) is set on the chassis, and one end and chassis are hinged；The lifting
Device is set between chassis and loading space ontology (8), for driving loading space ontology (8) to rotate relative to chassis；The lifting sensor
It is electrically connected with controller (7), for detecting the lifting state of the loading space；The second pressure sensor (6) and controller (7)
Electrical connection, the gravity born for detecting the loading space ontology (8)；The controller (7) is electrically connected with on-off valve (3), described
Controller (7) controls the on-off valve (3) according to the gravity and lifting state and acts.
2. dumper according to claim 1, which is characterized in that it is provided with seal groove on the loading space ontology (8), it is described
Expanding sealing strips (4) are set in seal groove.
3. dumper according to claim 1, which is characterized in that the expanding sealing strips (4) are made of rubber.
4. dumper according to claim 1, which is characterized in that the lifting device includes telescopic oil cylinder, the lifting
Sensor is displacement sensor；Institute's displacement sensors are set on telescopic oil cylinder, for detecting the piston of the telescopic oil cylinder
The displacement of bar.
5. dumper according to claim 1, which is characterized in that the lifting device includes telescopic oil cylinder, the lifting
Sensor is first pressure sensor (5)；The first pressure sensor (5) is set on telescopic oil cylinder, described for detecting
Pressure in the rodless cavity of telescopic oil cylinder.
6. dumper according to claim 1, which is characterized in that reach predetermined value and loading space ontology (8) in the gravity
When in non-lifting state, controller (7) control on-off valve (3) movement is in turn by supercharging device (1) and expanding sealing strips
(4) it is connected to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510583332.1A CN105109394B (en) | 2015-09-14 | 2015-09-14 | Dumper and its loading space sealing mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510583332.1A CN105109394B (en) | 2015-09-14 | 2015-09-14 | Dumper and its loading space sealing mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105109394A CN105109394A (en) | 2015-12-02 |
| CN105109394B true CN105109394B (en) | 2018-12-28 |
Family
ID=54657596
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510583332.1A Active CN105109394B (en) | 2015-09-14 | 2015-09-14 | Dumper and its loading space sealing mechanism |
Country Status (1)
| Country | Link |
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| CN (1) | CN105109394B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105539244B (en) * | 2015-12-29 | 2017-11-24 | 三一汽车制造有限公司 | A kind of active gas-flow closure control system and dumper |
| CN114683990A (en) * | 2022-04-01 | 2022-07-01 | 山东港口科技集团日照有限公司 | Vehicle weighing locking joint control method and related device and system |
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| JPS5699830A (en) * | 1980-01-07 | 1981-08-11 | Kyokuto Kaihatsu Kogyo Co Ltd | Hinge device for dump truck |
| CN2052731U (en) * | 1989-09-09 | 1990-02-14 | 沈阳市环卫汽车改装厂 | Closed garbage self-unloading truck |
| CN2270797Y (en) * | 1996-09-18 | 1997-12-17 | 朱震宇 | Inflatable sealing strip for door and window |
| CN203175345U (en) * | 2013-03-28 | 2013-09-04 | 唐山轨道客车有限责任公司 | Sealing device and sealing door |
| CN203603736U (en) * | 2013-12-09 | 2014-05-21 | 温州维科生物实验设备有限公司 | Inflation rubber strip for air-tight door |
| CN203638469U (en) * | 2013-10-25 | 2014-06-11 | 上海环境工程技术有限公司 | Pneumatic seal device for garbage container |
| CN205022427U (en) * | 2015-09-14 | 2016-02-10 | 湖南汽车制造有限责任公司 | Tipper and goods railway carriage or compartment sealing mechanism thereof |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050040691A1 (en) * | 2003-06-09 | 2005-02-24 | Jones Donald R. | Dual transfer dump trailer set |
| CN102416854B (en) * | 2011-08-23 | 2014-04-23 | 中国北方车辆研究所 | Vehicle door edge inflatable seal system |
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2015
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Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5699830A (en) * | 1980-01-07 | 1981-08-11 | Kyokuto Kaihatsu Kogyo Co Ltd | Hinge device for dump truck |
| CN2052731U (en) * | 1989-09-09 | 1990-02-14 | 沈阳市环卫汽车改装厂 | Closed garbage self-unloading truck |
| CN2270797Y (en) * | 1996-09-18 | 1997-12-17 | 朱震宇 | Inflatable sealing strip for door and window |
| CN203175345U (en) * | 2013-03-28 | 2013-09-04 | 唐山轨道客车有限责任公司 | Sealing device and sealing door |
| CN203638469U (en) * | 2013-10-25 | 2014-06-11 | 上海环境工程技术有限公司 | Pneumatic seal device for garbage container |
| CN203603736U (en) * | 2013-12-09 | 2014-05-21 | 温州维科生物实验设备有限公司 | Inflation rubber strip for air-tight door |
| CN205022427U (en) * | 2015-09-14 | 2016-02-10 | 湖南汽车制造有限责任公司 | Tipper and goods railway carriage or compartment sealing mechanism thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105109394A (en) | 2015-12-02 |
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Effective date of registration: 20190422 Address after: 422002 Shaoyang Shuangqing District, Shaoyang Avenue, Baoqing Industrial Concentration Zone, Sanyi Heavy Industry Area E Office Building, Shaoyang City, Hunan Province Patentee after: Sanyi Special Vehicle Co., Ltd. Address before: 422000 Wuli Brand, Shaoyang City, Hunan Province Patentee before: HUNAN AUTOMOBILE MANUFACTURING CO., LTD. |