CN104002775A - Concrete pump truck and support device thereof - Google Patents
Concrete pump truck and support device thereof Download PDFInfo
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- CN104002775A CN104002775A CN201410253703.5A CN201410253703A CN104002775A CN 104002775 A CN104002775 A CN 104002775A CN 201410253703 A CN201410253703 A CN 201410253703A CN 104002775 A CN104002775 A CN 104002775A
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- oil cylinder
- supporting leg
- bracing
- pump truck
- concrete pump
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Abstract
The invention discloses a concrete pump truck and a support device thereof. The support device comprises an external support leg, an internal support leg telescopically arranged in the external support leg, a first oil cylinder, a second oil cylinder and a support mechanism, wherein an end part of a piston rod of the first oil cylinder is used for being connected with a stand of the concrete pump truck; the extending-out direction of a piston rod of the second oil cylinder is opposite to that of the piston rod of the first oil cylinder, and a casing of the second oil cylinder and a casing of the first oil cylinder are arranged in parallel and are fixedly connected; an end part of the piston rod of the second oil cylinder is connected with the internal support leg; the support mechanism is connected with a cylinder seat of the first oil cylinder; when the internal support leg extends out from the external support leg, the support mechanism is pressed against the internal support leg. Through the arrangement, the support device of the concrete pump truck, provided by the invention, can effectively prevent the problem that the oil cylinders are deformed.
Description
Technical field
The present invention relates to technical field of engineering machinery, particularly a kind of concrete pump truck and bracing or strutting arrangement thereof.
Background technology
In prior art, the bracing or strutting arrangement of concrete pump truck comprises outer supporting leg, interior supporting leg and vertical legs, wherein, outer supporting leg is connected with the front pallet of concrete pump truck, and interior leg sleeve is supporting leg inside outside, vertical legs one end is connected with interior supporting leg, and the other end is used for being supported in ground.
Between front pallet and interior supporting leg, be provided with multi-stage oil cylinder, while starting operation, first multi-stage oil cylinder makes interior supporting leg stretch out in front pallet together with outer supporting leg, and then the piston rod of multi-stage oil cylinder continues to extend, interior supporting leg is stretched out in outer supporting leg, to be stretched over the supporting leg span needing.
But, after multi-stage oil cylinder launches completely, multi-stage oil cylinder one end is fixed on front pallet, and the other end is fixed on interior supporting leg, middle unsettled, start operation front in the time that complete vehicle weight acts on bracing or strutting arrangement completely, can cause multi-stage oil cylinder to send out meeting flexural deformation, span is larger, and oil cylinder amplitude of deformation is larger, in serious situation, can there is oil cylinder fracture, cause the pump truck can not normal operation.
Therefore, how to solve in prior art, the problem that multi-stage oil cylinder amplitude of deformation is larger, becomes those skilled in the art's important technological problems to be solved.
Summary of the invention
The invention provides a kind of bracing or strutting arrangement of concrete pump truck, the problem that it can effectively avoid oil cylinder to deform.The present invention also provides a kind of concrete pump truck that comprises above-mentioned bracing or strutting arrangement.
The bracing or strutting arrangement of concrete pump truck provided by the invention, comprising:
Outer supporting leg;
Telescopically is arranged at the interior supporting leg in described outer supporting leg;
The first oil cylinder, the end of its piston rod is for being connected with the pallet of concrete pump truck;
The second oil cylinder, the direction of stretching out of the piston rod that stretches out direction and described the first oil cylinder of its piston rod oppositely arranges, the shell of described the second oil cylinder be arranged in parallel and is fixedly connected with the shell of described the first oil cylinder, and the end of the piston rod of described the second oil cylinder is connected with described interior supporting leg;
Supporting mechanism, described supporting mechanism is connected on the cylinder seat of described the first oil cylinder, and in the time that described interior supporting leg is stretched out by described outer supporting leg, described supporting mechanism is pressed on described interior supporting leg.
Preferably, described supporting mechanism comprises bracing frame and be arranged at the roller on support frame as described above, and the cylinder seat of described the first oil cylinder is connected with support frame as described above, and described interior supporting leg is when stretching out in described outer supporting leg, and described roller compression is on described interior supporting leg.
Preferably, the shell of described the first oil cylinder is provided with the first fixed block, the shell of described the second oil cylinder is provided with the second fixed block, and described the first fixed block is mutually stacked with described the second fixed block, and is connected by the screw or the pin that are plugged in described the first fixed block and described the second fixed block.
Preferably, the cylinder seat of described the first oil cylinder is fixedly connected with support frame as described above by screw or pin.
The present invention also provides a kind of concrete pump truck, comprises the bracing or strutting arrangement described in as above any one.
The bracing or strutting arrangement of concrete pump truck provided by the invention, comprising: outer supporting leg; Telescopically is arranged at the interior supporting leg in described outer supporting leg; The first oil cylinder, the end of its piston rod is for being connected with the pallet of concrete pump truck; The second oil cylinder, the direction of stretching out of the piston rod that stretches out direction and described the first oil cylinder of its piston rod oppositely arranges, the shell of described the second oil cylinder be arranged in parallel and is fixedly connected with the shell of described the first oil cylinder, and the end of the piston rod of described the second oil cylinder is connected with described interior supporting leg; Supporting mechanism, described supporting mechanism is connected on the cylinder seat of described the first oil cylinder, and in the time that described interior supporting leg is stretched out by described outer supporting leg, described supporting mechanism is pressed on described interior supporting leg.So arrange, bracing or strutting arrangement provided by the invention, concrete pump truck is in the time of operation, first the first oil cylinder moves, and outer supporting leg is launched to then the second cylinder action, interior supporting leg is launched, and after interior supporting leg launches, the supporting mechanism that is arranged at the cylinder seat of the first oil cylinder is supported on interior supporting leg.Due to bracing or strutting arrangement provided by the invention, when the piston rod of the first oil cylinder and the second oil cylinder is in the time stretching out state, the first oil cylinder is fixedly connected with the shell of the second oil cylinder, and main body section is positioned at the middle part of outer supporting leg and supporting leg, its bulk strength is larger, even in the time that complete vehicle weight acts on bracing or strutting arrangement completely, the first oil cylinder and the second oil cylinder are also not easy to occur deformation.In addition, because the cylinder seat end of the first oil cylinder provided by the invention is close to interior supporting leg, and after interior supporting leg launches, on the cylinder seat of the first oil cylinder, be also provided with the supporting mechanism being supported on interior supporting leg, the middle part of the first oil cylinder and the second oil cylinder is not in unsettled state, supporting mechanism can play good supporting role, and then has avoided the problem of the first oil cylinder and the second oil cylinder generation deformation.
The present invention also provides a kind of concrete pump truck that comprises above-mentioned bracing or strutting arrangement, and concrete pump truck provided by the invention, the problem that can effectively avoid multi-stage oil cylinder to deform are so set.
Brief description of the drawings
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the first oil cylinder and the second oil cylinder connection diagram in the specific embodiment of the invention;
Fig. 2 is bracing or strutting arrangement schematic diagram in the specific embodiment of the invention;
Fig. 3 is supporting mechanism schematic diagram in the specific embodiment of the invention;
In Fig. 1-Fig. 3:
Outer supporting leg-11, interior supporting leg-12, the first oil cylinder-13, the second oil cylinder-14, supporting mechanism-15, bracing frame-16, roller-17.
Detailed description of the invention
This detailed description of the invention provides a kind of bracing or strutting arrangement of concrete pump truck, the problem that it can effectively avoid oil cylinder to deform.This detailed description of the invention also provides a kind of concrete pump truck that comprises above-mentioned bracing or strutting arrangement.
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiment.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
Please refer to Fig. 1-Fig. 3, the bracing or strutting arrangement of the concrete pump truck that this detailed description of the invention provides, comprising:
Outer supporting leg 11;
Telescopically is arranged at the interior supporting leg 12 in outer supporting leg 11;
The first oil cylinder 13, the end of its piston rod is for being connected with the pallet of concrete pump truck;
The second oil cylinder 14, the direction of stretching out of the piston rod that stretches out direction and the first oil cylinder 13 of its piston rod oppositely arranges, the shell of the second oil cylinder 14 be arranged in parallel and is fixedly connected with the shell of the first oil cylinder 13, and the end of the piston rod of the second oil cylinder 14 is connected with interior supporting leg 12;
Supporting mechanism 15, supporting mechanism 15 is connected on the cylinder seat of the first oil cylinder 13, and in the time that interior supporting leg 12 is stretched out by outer supporting leg 11, supporting mechanism 15 is pressed on interior supporting leg 12.
So arrange, the bracing or strutting arrangement that this detailed description of the invention provides, concrete pump truck is in the time of operation, first the first oil cylinder 13 moves, outer supporting leg 11 is launched in pallet, and then the second oil cylinder 14 moves, by interior supporting leg 12 from the interior expansion of outer supporting leg 11, after interior supporting leg 12 launches, the supporting mechanism 15 that is arranged at the cylinder seat of the first oil cylinder 13 is supported on interior supporting leg 12.
The bracing or strutting arrangement providing due to this detailed description of the invention, when the piston rod of the first oil cylinder 13 and the second oil cylinder 14 is in the time stretching out state, the first oil cylinder 13 is fixedly connected with the shell of the second oil cylinder 14, and first entirety that forms of oil cylinder 13 and the second oil cylinder 14, the main body section that this is overall, the main body section being formed by the shell of the first oil cylinder 13 and the second oil cylinder 14, be positioned at the middle part of outer supporting leg 11 and supporting leg 12, main body section intensity is larger, even in the time that complete vehicle weight acts on bracing or strutting arrangement completely, the first oil cylinder 13 and the second oil cylinder 14 are also not easy to occur deformation.
In addition, the cylinder seat end of the first oil cylinder 13 providing due to this detailed description of the invention is close to interior supporting leg 12, and after interior supporting leg 12 launches, on the cylinder seat of the first oil cylinder 13, be also provided with the supporting mechanism 15 being supported on interior supporting leg 12, the middle part of the first oil cylinder 13 and the second oil cylinder 14 is not in unsettled state, supporting mechanism 15 can play good supporting role, and then has avoided the first oil cylinder 13 and the second oil cylinder 14 that the problem of deformation occurs.
In the preferred version of this detailed description of the invention, supporting mechanism 15 comprises bracing frame 16 and is arranged at the roller 17 on bracing frame 16, the cylinder seat of the first oil cylinder 13 is connected with bracing frame 16, and interior supporting leg 12 is when stretching out in outer supporting leg 11, and roller 17 is pressed on interior supporting leg 12.
So arrange, when interior supporting leg 12 stretch out in process or withdrawal process in, the roller 17 of supporting mechanism 15 rolls on the bearing surface of interior supporting leg 12, and the friction between supporting mechanism 15 and interior supporting leg 12 is less, and internally the expansion of supporting leg 12 or withdrawal do not cause obstruction.
In addition, in this detailed description of the invention, the first oil cylinder 13 and the second oil cylinder 14 can be connected together in the following way:
The shell of the first oil cylinder 13 is provided with the first fixed block, and the shell of the second oil cylinder 14 is provided with the second fixed block, and the first fixed block is mutually stacked with the second fixed block, and is connected by the screw or the pin that are plugged in the first fixed block and the second fixed block.
Above-mentioned the first fixed block and the second fixed block can be fixed on the first oil cylinder 13 and the second oil cylinder 14 by the mode of welding respectively, so arrange, and together with only need the first oil cylinder 13 can being fixedly connected on the second oil cylinder 14 by screw or pin, handled easily.
In addition, it should be noted that, above-mentioned bracing frame 16 also can be connected by pin or screw with the cylinder seat of the first oil cylinder 13, certainly, also can pass through alternate manner, such as welding, clamping etc., only needs the two to be connected together reliably.
This detailed description of the invention also provides a kind of concrete pump truck that comprises above-mentioned bracing or strutting arrangement, and the concrete pump truck that this detailed description of the invention provides, the problem that can effectively avoid multi-stage oil cylinder to deform are so set.The derivation of the beneficial effect that the derivation of this beneficial effect and above-mentioned bracing or strutting arrangement bring is substantially similar, therefore repeat no more herein.
To the above-mentioned explanation of the disclosed embodiments, make professional and technical personnel in the field can realize or use the present invention.To be apparent for those skilled in the art to the multiple amendment of these embodiment, General Principle as defined herein can, in the situation that not departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention will can not be restricted to these embodiment shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (5)
1. a bracing or strutting arrangement for concrete pump truck, is characterized in that, comprising:
Outer supporting leg;
Telescopically is arranged at the interior supporting leg in described outer supporting leg;
The first oil cylinder, the end of its piston rod is for being connected with the pallet of concrete pump truck;
The second oil cylinder, the direction of stretching out of the piston rod that stretches out direction and described the first oil cylinder of its piston rod oppositely arranges, the shell of described the second oil cylinder be arranged in parallel and is fixedly connected with the shell of described the first oil cylinder, and the end of the piston rod of described the second oil cylinder is connected with described interior supporting leg;
Supporting mechanism, described supporting mechanism is connected on the cylinder seat of described the first oil cylinder, and in the time that described interior supporting leg is stretched out by described outer supporting leg, described supporting mechanism is pressed on described interior supporting leg.
2. bracing or strutting arrangement as claimed in claim 1, it is characterized in that, described supporting mechanism comprises bracing frame and is arranged at the roller on support frame as described above, the cylinder seat of described the first oil cylinder is connected with support frame as described above, described interior supporting leg is when stretching out in described outer supporting leg, and described roller compression is on described interior supporting leg.
3. bracing or strutting arrangement as claimed in claim 1, it is characterized in that, the shell of described the first oil cylinder is provided with the first fixed block, the shell of described the second oil cylinder is provided with the second fixed block, described the first fixed block is mutually stacked with described the second fixed block, and is connected by the screw or the pin that are plugged in described the first fixed block and described the second fixed block.
4. bracing or strutting arrangement as claimed in claim 2, is characterized in that, the cylinder seat of described the first oil cylinder is fixedly connected with support frame as described above by screw or pin.
5. a concrete pump truck, is characterized in that, comprises the bracing or strutting arrangement as described in claim 1-4 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410253703.5A CN104002775A (en) | 2014-06-09 | 2014-06-09 | Concrete pump truck and support device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410253703.5A CN104002775A (en) | 2014-06-09 | 2014-06-09 | Concrete pump truck and support device thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104002775A true CN104002775A (en) | 2014-08-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410253703.5A Pending CN104002775A (en) | 2014-06-09 | 2014-06-09 | Concrete pump truck and support device thereof |
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| CN (1) | CN104002775A (en) |
Citations (8)
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|---|---|---|---|---|
| CN101028910A (en) * | 2007-04-11 | 2007-09-05 | 三一重工股份有限公司 | Front leg of mobile engineering machinery and mobile engineering machinery therewith |
| CN201587395U (en) * | 2010-01-04 | 2010-09-22 | 徐州彭城重型机械有限公司 | Fixed device for horizontal support oil cylinder of autocrane |
| CN201670212U (en) * | 2010-02-04 | 2010-12-15 | 徐工集团工程机械股份有限公司建设机械分公司 | Engineering machine and support leg retractor device |
| CN202729666U (en) * | 2012-08-24 | 2013-02-13 | 徐州徐工随车起重机有限公司 | Three-stage telescopic support leg structure of lorry-mounted crane |
| WO2013060232A1 (en) * | 2011-10-24 | 2013-05-02 | 中联重科股份有限公司 | Leg device for engineering machinery and concrete pump truck |
| CN203111148U (en) * | 2013-01-15 | 2013-08-07 | 华菱星马汽车（集团）股份有限公司 | Concrete pump truck and circumferential limiting device for oil cylinder |
| CN103303269A (en) * | 2012-03-14 | 2013-09-18 | 徐州徐工施维英机械有限公司 | Extension and retraction mechanism and support leg extension and retraction system for concrete pump truck |
| CN203958094U (en) * | 2014-06-09 | 2014-11-26 | 安徽星马专用汽车有限公司 | A kind of concrete pump truck and bracing or strutting arrangement thereof |
-
2014
- 2014-06-09 CN CN201410253703.5A patent/CN104002775A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101028910A (en) * | 2007-04-11 | 2007-09-05 | 三一重工股份有限公司 | Front leg of mobile engineering machinery and mobile engineering machinery therewith |
| CN201587395U (en) * | 2010-01-04 | 2010-09-22 | 徐州彭城重型机械有限公司 | Fixed device for horizontal support oil cylinder of autocrane |
| CN201670212U (en) * | 2010-02-04 | 2010-12-15 | 徐工集团工程机械股份有限公司建设机械分公司 | Engineering machine and support leg retractor device |
| WO2013060232A1 (en) * | 2011-10-24 | 2013-05-02 | 中联重科股份有限公司 | Leg device for engineering machinery and concrete pump truck |
| CN103303269A (en) * | 2012-03-14 | 2013-09-18 | 徐州徐工施维英机械有限公司 | Extension and retraction mechanism and support leg extension and retraction system for concrete pump truck |
| CN202729666U (en) * | 2012-08-24 | 2013-02-13 | 徐州徐工随车起重机有限公司 | Three-stage telescopic support leg structure of lorry-mounted crane |
| CN203111148U (en) * | 2013-01-15 | 2013-08-07 | 华菱星马汽车（集团）股份有限公司 | Concrete pump truck and circumferential limiting device for oil cylinder |
| CN203958094U (en) * | 2014-06-09 | 2014-11-26 | 安徽星马专用汽车有限公司 | A kind of concrete pump truck and bracing or strutting arrangement thereof |
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Application publication date: 20140827 |
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