CN201280089Y - Self-discharging vehicle - Google Patents
Self-discharging vehicle Download PDFInfo
- Publication number
- CN201280089Y CN201280089Y CNU2008201194112U CN200820119411U CN201280089Y CN 201280089 Y CN201280089 Y CN 201280089Y CN U2008201194112 U CNU2008201194112 U CN U2008201194112U CN 200820119411 U CN200820119411 U CN 200820119411U CN 201280089 Y CN201280089 Y CN 201280089Y
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- Prior art keywords
- back door
- oil cylinder
- compartment
- dumping car
- valve
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- 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.)
- Expired - Fee Related
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- 238000007599 discharging Methods 0.000 title 1
- 230000003028 elevating effect Effects 0.000 claims description 18
- 230000009471 action Effects 0.000 claims description 4
- 239000003921 oil Substances 0.000 description 62
- 230000005484 gravity Effects 0.000 description 5
- 230000007246 mechanism Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 230000008859 change Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000010720 hydraulic oil Substances 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 210000001364 upper extremity Anatomy 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 239000002828 fuel tank Substances 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000007665 sagging Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
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Abstract
The utility model discloses a dumping truck, which comprises a truck box and a hydraulic system driving the truck box, wherein the truck box includes a truck box body and a back door connected with the truck box body; the truck box body includes two side plates, a crossbeam arranged on the rear ends of the two side plates and a back door oil cylinder for driving the back door; one end of the oil cylinder is hinged with the back door of the truck box, and the other end is hinged with the truck box body; and the back door oil cylinder is connected with the hydraulic system through a controlled valve. By arranging the back door oil cylinder to control the opening/closing of the back door and connecting the oil cylinder with the original hydraulic system, the utility model can effectively control the opening/closing of the back door so as to reduce the safety accident risk and has the advantages of simple structure and convenient operation.
Description
Technical field
The utility model relates to a kind of dumping car, relates in particular to the unlatching close mechanism of self dumping lorory back door jack.
Background technology
Dumping car is as a kind of important special vehicle, and it is used more and more widely, is using under the state that increases, and also happens occasionally because the problem of close mechanism initiation is opened at the back door.Existing self dumping lorory back door jack is opened the effect that close mechanism adopts gravity usually.Fig. 1 is the compartment local structure scheme drawing of the dumping car of prior art, back door 11 is hinged with compartment 1 by the sectional type upset connecting panel 111 that is provided with on it, in compartment loading and shipping goods process, back door 11 and compartment 1 are connected by latching device, latching device is made up of snap close 101 that is arranged at the compartment rearward end and the lock shaft 102 that is arranged on the back door 11, snap close 101 is " L " shape structure, and it can snap on the cylindricality lock shaft 102 with locking back door 11.In the practical application, before compartment 1 is by lifting, open snap close 101, in the lifting process, because action of gravity, back door 11 will be also sagging around its jointed shaft rotation with compartment 1; Completion of discharge, in the compartment decline process, same because action of gravity, back door 11 will around jointed shaft rotate up to compartment 1 combination.Except that this common structure, also have a kind of rod-type opener, its principle connects latch hook for adopting chain, steel rope, steel pipe etc., and latch hook utilizes gravity to sway along with the variation of the lifting angle in compartment, thereby reaches the purpose of opening closed back door.
By to above-mentioned analysis of technology and summary production practice, find that prior art exists self dumping lorory back door jack and opens the insecure problem of close mechanism, most gravity by the back door can not overcome its rotational resistance to be caused.This will cause major safety risks, and the back door can't be opened when promptly the compartment was by lifting, in the time of serious even may cause accidents such as overturning, personal casualty.
In sum, existing dumping car technology exists the place that haves much room for improvement, and requires further improvement.
The utility model content
The purpose of this utility model is to provide a kind of dumping car, and it can realize reliable open and close back door, avoids the back door can't open and accident such as the overturning that may cause, personal casualty.
To achieve these goals, the technical scheme of the dumping car that the utility model provides is: comprise the compartment and drive the hydraulic efficiency pressure system that this compartment moves, this compartment comprises envelope and the back door that links to each other with this envelope, described compartment comprise biside plate and fixed mount be located at this biside plate upper rear end crossbeam and with this crossbeam pivotally attached back door, it is characterized in that
Also comprise the back door oil cylinder that drives described back door, the external part of the piston rod that the oil cylinder relatively of this oil cylinder is flexible and the back door in described compartment are hinged, and an end of described oil cylinder is articulated on the envelope in described compartment;
Described back door oil cylinder is connected with described hydraulic efficiency pressure system by Controlled valve.
According to above-mentioned dumping car, wherein, described crossbeam is symmetrically arranged with opening on the two ends, and this opening part is provided with back door bearing and back door cylinder support;
Described back door comprises upset connecting panel and back door body, and an end of this upset connecting panel is connected with the back door body, and the other end and described back door bearing are hinged;
One end of described back door oil cylinder is articulated in described back door cylinder support.
According to above-mentioned dumping car, wherein, the external part of the piston rod that the oil cylinder relatively of described back door oil cylinder is flexible and the hinge-point at described back door are arranged on the described upset connecting panel.
According to above-mentioned dumping car, wherein, described back door oil cylinder is two, and is symmetricly set on described crossbeam openings at two ends place.
According to above-mentioned dumping car, wherein, also comprise latching device, this latching device comprises at least two snap closes and is connected with these snap closes to lock at least two lock cores at described back door; These snap closes are arranged at the biside plate at described envelope, and these lock core correspondences are arranged on the described back door.
According to above-mentioned dumping car, wherein, the elevating ram of described back door oil cylinder and described hydraulic efficiency pressure system is connected by the sequentially-operating control setup.
Dumping car according to claim 6, wherein, described Controlled valve is a Pneumatic reversal valve, this Pneumatic reversal valve is connected with the air receiver of described hydraulic efficiency pressure system by a back door control cock;
Described sequentially-operating control setup is the pneumatic sebific duct of the admission port of the hoist control valve of the air extractor duct that connects described Pneumatic reversal valve and described hydraulic efficiency pressure system.
According to above-mentioned dumping car, wherein, described Controlled valve is in parallel with a safety valve.
The side panel place in the back door of the dumping car that the utility model provides and compartment has increased the control back door and has opened closed back door oil cylinder, and this oil cylinder can effectively overcome extraneous resistance makes the unlatching closure at back door artificially to control.Certainly this hydraulic ram should insert the original hydraulic efficiency pressure system of dumping car, has both lowered productive costs, and it is convenient to use again.Preferably, the flexible order of the elevating ram of back door oil cylinder and hydraulic efficiency pressure system is controlled by the sequentially-operating device, the back door oil cylinder is directly by its Pneumatic reversal valve control as Controlled valve, elevating ram is controlled by hoist control valve, sequence of operation by control Pneumatic reversal valve and hoist control valve, then can control the sequence of operation of back door oil cylinder and elevating ram, the air extractor duct of Pneumatic reversal valve and the admission port of hoist control valve are connected the sequentially-operating that then can realize two oil cylinders with pneumatic sebific duct, the pneumatic sebific duct of bonded assembly then is the sequentially-operating control setup, it makes two oil cylinders have the interlock effect, and this mode that realizes sequence control not only simply but also reliable.By the analysis of technical scheme that the utility model is provided, can learn that the utility model has increased greatly and overcome the ability that closure-resistive is opened at the back door, increase the compartment and risen the safety that open at the back door.Preferred scheme makes back door oil cylinder and elevating ram have correlation, not only makes easy to operately, and has further increased safety performance.
Description of drawings
Fig. 1 is the body of tipper carriage local structure scheme drawing of prior art;
Fig. 2 is the compartment local structure scheme drawing of the utility model preferred embodiment;
Fig. 3 is the schematic top plan view of the back door oil cylinder of the utility model preferred embodiment;
Fig. 4 is the A-A generalized section of Fig. 3;
Fig. 5 looks scheme drawing for the left side of Fig. 3;
Fig. 6 is the hydraulic schematic diagram of the utility model preferred embodiment.
The specific embodiment
Below in conjunction with the description of drawings and the specific embodiment the utility model is described in further details.
Fig. 2 is the compartment local structure scheme drawing of the utility model preferred embodiment, this figure is the structural representation of compartment 1 when being in the lifting state, back door 11 is in opening, the upper limb of the side panel 2 in compartment 1 is a crossbeam 21, the end of crossbeam 21 is provided with opening 12, wherein be provided with back door bearing 121 and back door cylinder support 122, back door 11 comprises upset connecting panel 111 and back door body, back door 11 is articulated in back door bearing 121 by upset connecting panel 111, in this embodiment, upset connecting panel 111 is for being similar to the structure of " L " shape, and it can make the flip angle at back door and upset space increase, and promptly increases its alerting ability.
One end of back door oil cylinder 13 is articulated in back door cylinder support 122, the other end is articulated on the upset connecting panel 111, the hinge-point of back door oil cylinder 13 with back door 11 is arranged on the upset connecting panel 111 by jointed shaft 123, and position near the back door body, make back door oil cylinder 13 be in and crossbeam 21 approaching parallel states, can make full use of the space of opening 12 like this, under the prerequisite that guarantees moment, can make the diameter design-calculated of back door oil cylinder 13 littler, because the angle of the active line of the axis of back door oil cylinder 13 and upset connecting panel 111 may be very little, in order to overcome resistance, need therefore to guarantee that back door oil cylinder 13 acts on the moment of upset connecting panel 111.1 both sides are provided with a back door oil cylinder 13 respectively in the compartment, and this can better control the unlatching closure at back door 11.In other embodiments, can not connect side panel 2 and back door 11 by upset connecting panel 111, can make the two hinged by other modes, in the end of crossbeam 21 beginning 12 needn't be set, 11 upper limb is provided with hole or S. A. and the correspondence position of the side plate 2 of 1 both sides is provided with corresponding S. A. or hole in the compartment at the back door, 11 the outside is drawn pipe link etc. and an end of back door oil cylinder 13 and is realized hingedly at the back door, and the other end of back door oil cylinder 13 then is articulated on the side plate 2.
After the dumping car lade, can use latching device assurance back door 11 to close, in this preferred embodiment, latching device comprises snap close 101 and the lock core 102 that is connected with this snap close 101 with locking back door 11, snap close 10 is arranged on the side panel 2, lock core 102 is arranged on the back door 11, the effect of latching device replaces or guarantees that better back door oil cylinder 13 makes back door 11 tight closure, snap close 101 can be other structures, as falling " U " shape, rotary connection is on side plate 2 on one side, and can up-and-down movement, 102 of lock cores can be for being arranged on a sleeve that cooperates with snap close 101 on the back door 11, and the another side of " U " shape snap close of will falling inserts the purpose that just can realize locking back door 11 in the sleeve.
Fig. 3, Fig. 4 and Fig. 5 have shown the annexation of back door oil cylinder 13 with other parts in compartment 1, back door bearing 121 is arranged on the crossbeam 21, in order to make upset connecting panel 111 stress balances, be set to the clamping plate type structure of symmetry at itself and back door bearing 121 and back door oil cylinder 13 connecting bridges, middle for holding the cavity of back door oil cylinder 13.Back door oil cylinder 13 all adopts jointed shaft 123 to be connected with the hinge-point and the upset connecting panel 111 of upset connecting panel 111 with the hinge-point of back door bearing 121 with hinge-point, the back door oil cylinder 13 of back door cylinder support 122.Back door oil cylinder 13 inserts original hydraulic efficiency pressure system by oil inlet 131 and oil outlet 132, can control the flexible of back door oil cylinder 13 by the mobile direction of the hydraulic oil of control oil inlet 131 and oil outlet 132, and then the rotation of control upset connecting panel 111, it is the unlatching closure at back door, it shows as when oil inlet 131 oil-feeds, the piston rod 133 of back door oil cylinder 13 stretches out, promote of jointed shaft 123 rotations of upset connecting panel 111 around back door bearing 121 places, upset connecting panel 111 drives the back door body and opens, otherwise process, the back door body is then closed, and 134 is the piston of back door oil cylinder 13.
Fig. 6 is the hydraulic schematic diagram of the utility model preferred embodiment, two back door oil cylinders 13 are arranged at the both sides in compartment 1 respectively, the two inserts hydraulic efficiency pressure system by back door reversing valve assembly F1 and hydralic hose Y30, the Y31 as Controlled valve, back door reversing valve assembly F1 wherein comprises back door change-over valve F11 and safety valve F12, this safety valve F12 be arranged at and the oil inlet and oil outlet bonded assembly hydralic hose of back door change-over valve F11 between.Fuel tank Y3 stores hydraulic pressure oil, Hydraulic Pump Y1 provides power for the back door oil cylinder 13 in the hydraulic efficiency pressure system and elevating ram Y2, elevating ram Y2 is used for lifting compartment 1, its control mechanism comprises hoist control valve assembly F2, limit valve F3, elevating ram reversing valve assembly F4, and the oil inlet of the elevating ram change-over valve F41 among the elevating ram reversing valve assembly F4 is connected with the back door change-over valve F11 of back door oil cylinder 13 by hydralic hose Y31 and a check valve.
Air receiver Q1 is the source of the gas of pneumatic element in this hydraulic efficiency pressure system, and the admission port of back door change-over valve F11 is connected with gas receiver Q1 with back door control cock Q2 by the pneumatic sebific duct Q3 that is used for air inlet.In order to make the more convenient operation of this preferred embodiment, can control the elongation and the shortening of back door oil cylinder 13 at operator's compartment with by-pass valve control by the sequence control control setup, and control only ability lifting compartment 1 after open at back door 11 of elevating ram.In the present embodiment, because back door change-over valve F11 is Pneumatic reversal valve, the lifting change-over valve F41 among the lifting reversing valve assembly F4 also is a Pneumatic-control type, and the gas flow direction of controlling this valve is by hoist control valve assembly F2 and limit valve F3 control.Therefore the air extractor duct of the back door change-over valve F11 admission port Q5 by pneumatic sebific duct Q4 and the hoist control valve F21 of hoist control valve assembly F2 is connected, just can realizes the sequentially-operating of back door oil cylinder 13 and Y2, this sequentially-operating control setup is pneumatic sebific duct Q4.For the sequentially-operating control setup various ways can also be arranged, if the back door change-over valve F11 of back door oil cylinder 13 is a pilot operated valve device, and the elevating ram change-over valve also is a pilot operated valve device, and the sequence of operation of then controlling the two also can realize the sequentially-operating of back door oil cylinder 13 and elevating ram Y2.If these two valves are electromagnetic valve, then can on back door oil cylinder 13, stroke sensor be installed, when stretching to certain position, sends by back door oil cylinder 13 energizing signal, control elevating ram reversing valve assembly F4, and then the control elevating ram is flexible, under this mode, the sequentially-operating control setup then comprises stroke sensor, signal receiving/transmission device etc.
In this preferred embodiment, when needing lifting lifting compartment, open back door control cock Q2, back door change-over valve F11 changes to position, a left side, 13 elongations of back door oil cylinder, open at back door 11; Then high pressure gas along pneumatic sebific duct Q4 to hoist control valve assembly F2, the hoist control valve F21 and the limit valve F3 that handle wherein make the lifting change-over valve F41 among the lifting reversing valve assembly F4 change to right position, force value according to safety valve setting, under certain process stage, hydraulic oil will be along hydralic hose Y31 to lifting reversing valve assembly F4, enter elevating ram Y2 then, compartment 1 arrives operation limit valve F3 when needing the position, makes the lifting change-over valve change F41 to meta.
When needing decline compartment 1, then be that control limit valve F3 and hoist control valve assembly F2 make lifting change-over valve F21 change to position, a left side, elevating ram Y2 descends and finishes, operation hoist control valve assembly F2, hoist control valve F21 is wherein changed to meta, high pressure gas make back door change-over valve F11 change to right position then, and at this moment back door oil cylinder 13 begins withdrawal.Close Hydraulic Pump Y1 and back door control cock Q2 at last, the whole sequentially-operating cycle finishes.
In this preferred embodiment, beginning place at two crossbeams in compartment is provided with a back door oil cylinder respectively, improve the back door greatly and opened closed reliability, reduced accident probabilities such as overturning takes place,, made back door oil cylinder and lifting have correlation again by the sequentially-operating control setup, in a heave period, the course of action of the two for the back door oil cylinder stretch-elevating ram stretches-elevating ram contracts-the back door oil cylinder contracts, this operating mode makes that not only safety is higher, and handled easily.
Yet the above only is a preferred embodiment of the present utility model, and unrestricted protection domain of the present utility model, so the equivalent structure that all utilization utility model specification sheetss and accompanying drawing content have been done changes, all is included in the protection domain of the present utility model.
Claims (8)
1, a kind of dumping car, comprise the compartment and drive the hydraulic efficiency pressure system of this compartment action, this compartment comprises envelope and the back door that links to each other with this envelope, described compartment comprise biside plate and fixed mount be located at this biside plate upper rear end crossbeam and and this crossbeam pivotally attached back door, it is characterized in that
Also comprise the back door oil cylinder that drives described back door, the external part of the piston rod that the oil cylinder relatively of this oil cylinder is flexible and the back door in described compartment are hinged, and an end of described oil cylinder is articulated on the envelope in described compartment;
Described back door oil cylinder is connected with described hydraulic efficiency pressure system by Controlled valve.
2, dumping car according to claim 1 is characterized in that, described crossbeam is symmetrically arranged with opening on the two ends, and this opening part is provided with back door bearing and back door cylinder support;
Described back door comprises upset connecting panel and back door body, and an end of this upset connecting panel is connected with the back door body, and the other end and described back door bearing are hinged;
One end of described back door oil cylinder is articulated in described back door cylinder support.
3, dumping car according to claim 2 is characterized in that, the external part of the piston rod that the oil cylinder relatively of described back door oil cylinder is flexible and the hinge-point at described back door are arranged on the described upset connecting panel.
4, dumping car according to claim 2 is characterized in that, described back door oil cylinder is two, and is symmetricly set on described crossbeam openings at two ends place.
5, dumping car according to claim 1 is characterized in that, also comprises latching device, and this latching device comprises at least two snap closes and is connected with these snap closes to lock at least two lock cores at described back door; These snap closes are arranged at the biside plate at described envelope, and these lock core correspondences are arranged on the described back door.
6, dumping car according to claim 1 is characterized in that,
The elevating ram of described back door oil cylinder and described hydraulic efficiency pressure system is connected by the sequentially-operating control setup.
7, dumping car according to claim 6 is characterized in that,
Described Controlled valve is a Pneumatic reversal valve, and this Pneumatic reversal valve is connected with the air receiver of described hydraulic efficiency pressure system by a back door control cock;
Described sequentially-operating control setup is the pneumatic sebific duct of the admission port of the hoist control valve of the air extractor duct that connects described Pneumatic reversal valve and described hydraulic efficiency pressure system.
8, dumping car according to claim 1 is characterized in that,
Described Controlled valve is in parallel with a safety valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201194112U CN201280089Y (en) | 2008-07-30 | 2008-07-30 | Self-discharging vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201194112U CN201280089Y (en) | 2008-07-30 | 2008-07-30 | Self-discharging vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201280089Y true CN201280089Y (en) | 2009-07-29 |
Family
ID=40926974
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201194112U Expired - Fee Related CN201280089Y (en) | 2008-07-30 | 2008-07-30 | Self-discharging vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201280089Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103010066A (en) * | 2013-01-06 | 2013-04-03 | 一汽解放柳州特种汽车有限公司 | Rear door opening and closing device for dump truck |
| CN111516737A (en) * | 2020-05-21 | 2020-08-11 | 贾绍增 | Electric control carrying equipment for barreled water transportation |
-
2008
- 2008-07-30 CN CNU2008201194112U patent/CN201280089Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103010066A (en) * | 2013-01-06 | 2013-04-03 | 一汽解放柳州特种汽车有限公司 | Rear door opening and closing device for dump truck |
| CN103010066B (en) * | 2013-01-06 | 2015-06-17 | 一汽解放柳州特种汽车有限公司 | Rear door opening and closing device for dump truck |
| CN111516737A (en) * | 2020-05-21 | 2020-08-11 | 贾绍增 | Electric control carrying equipment for barreled water transportation |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090729 Termination date: 20120730 |