CN201330505Y - Boom structure and concrete pump truck - Google Patents
Boom structure and concrete pump truck Download PDFInfo
- Publication number
- CN201330505Y CN201330505Y CNU2008201845109U CN200820184510U CN201330505Y CN 201330505 Y CN201330505 Y CN 201330505Y CN U2008201845109 U CNU2008201845109 U CN U2008201845109U CN 200820184510 U CN200820184510 U CN 200820184510U CN 201330505 Y CN201330505 Y CN 201330505Y
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- Prior art keywords
- jib
- hinged
- linear actuator
- oil cylinder
- boom
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Abstract
The utility model discloses a boom structure, which comprises a first boom, a second boom, a first connection rod, a second connection rod, a first linear motion actuating mechanism and a second linear motion actuating mechanism, wherein one end of the first boom is hinged with one end of the second boom, the other end of the first boom is hinged on a main device, one end of the first connection rod is hinged with one end of the second connection rod, the other end of the first connection rod and the other end of the second connection rod are respectively hinged with the first boom and the second boom, one end of the first linear motion actuating mechanism and one end of the second linear motion actuating mechanism are respectively hinged with the first boom, and the other end of the first linear motion actuating mechanism and the other end of the second linear motion actuating mechanism are respectively hinged with the main device and the first connection rod. Moreover, a hinge joint seat is disposed on the first boom, and one end of the first linear motion actuating mechanism and one end of the second linear motion actuating mechanism are both hinged on the hinge joint seat. Further, the first linear motion actuating mechanism and the second linear motion actuating mechanism use the same hinge joint seat, thereby force conditions of the first boom and the hinge joint seat can be improved, and the boom structure can be strengthened. On the basis, the utility model further discloses a concrete pump truck.
Description
Technical field
The utility model relates to the transmission device that mainly contains pull bar or lever, is specifically related to a kind of jib structure jib and concrete mixer.
Background technology
Along with the lasting steady development of global economy, the quickening of especially domestic urbanization pace of construction is for the development of concrete pumping machinery provides excellent opportunity.Under this environment, concrete mixer (abbreviation pump truck) rapid technological improvement, product is gradually improved.At present, longer cloth jib is one of concrete mixer main development tendency.Open for what make jib that the space is lower, topology layout is compacter, the jib of concrete mixer adopts car load folding modes such as Z-shaped, R shape, RZ shape, M shape, and mainly adopts the jib structure of reflexed form.
In pump truck, jib is as mixing the brace summer that earth is carried, and its oil cylinder supporting seat is one of crucial power transmission position, requires to have higher intensity.But, now, can not meet the demands fully with the pumping vehicle arm rack pair oil cylinder seat form of structure that adopt more, be summarized as follows:
See also Fig. 1, this figure is the schematic diagram of an existing jib structure.This jib structure comprises: first jib 3, second jib 6 that are hinged, and the other end of this first jib 3 is hinged on the main equipment (as turntable) 1; The first connecting rod 5 that is hinged, second connecting rod 7, both other ends are hinged with first jib 3, second jib 6 respectively, form four-bar linkage structure; First oil cylinder seat 41 on first oil cylinder, 2, one ends and first jib 3 is hinged, and the other end and main equipment 1 are hinged; Second oil cylinder seat 42 on second oil cylinder, 8, one ends and first jib 3 is hinged, and the other end and first connecting rod 5 are hinged.This jib structure, adjust the inclination angle of first jib 3 by 2 actions of first oil cylinder, realize the stretching, extension, folding of second jib 3 by the action of second oil cylinder 8, operate comparatively easy, there is the low problem of jib structure intensity, this be because: when first oil cylinder 2,8 actions of second oil cylinder, first oil cylinder seat 41, second oil cylinder seat 42 are single load bearing; Because of two direction discontinuity equalizations, easily cause oil cylinder seat and jib cracking.
The utility model content
In view of this, the utility model provides a kind of jib structure, can improve the force-bearing situation of first jib and hinged seat, improves jib structure intensity.On this basis, the present invention also provides a kind of concrete mixer.
For solving above technical problem, the jib structure that the utility model provides comprises: first jib, second jib, and an end is hinged, and the other end of described first jib is hinged on the main equipment; First connecting rod, second connecting rod, an end is hinged, and the other end is hinged with described first jib, second jib respectively; First linear actuator, second linear actuator, an end are connected with described first jib respectively, and the other end is hinged with described main equipment, first connecting rod respectively; On described first jib hinged seat is set; One end of described first linear actuator, second linear actuator all is hinged on the described hinged seat.
Preferably, on the described hinged seat bearing pin is set; One end of described first linear actuator, second linear actuator is hinged by shared described bearing pin and described hinged seat.
Preferably, first bearing pin, second bearing pin are set on the described hinged seat; One end of described first linear actuator, second linear actuator is hinged by described first bearing pin, second bearing pin and described hinged seat respectively.
Preferably, described hinged seat roughly is arranged on the middle part of described first jib.
Preferably, the end of described first linear actuator and/or second linear actuator is fixed with connecting rod, is used to increase the length of described first linear actuator and/or second linear actuator.
Preferably, described first linear actuator, second linear actuator are oil cylinder, cylinder or electric pushrod.
The concrete mixer that the utility model provides comprises above-mentioned jib structure.
Compared with prior art, first linear actuator of the present utility model, the shared hinged seat of second linear actuator can improve the force-bearing situation of first jib and hinged seat, improve jib structure intensity.Particularly: behind shared hinged seat, hinged seat is when being subjected to the active force of a linear actuator, and another linear actuator can be shared a part of active force, thereby makes hinged seat stressed comparatively balanced; This improves the force-bearing situation of oil cylinder seat, can solve the cracking problem of hinged seat; Simultaneously, reduced the rigidity of structure and requirement of strength, made jib structure simple, compact first jib.
Description of drawings
Fig. 1 is the schematic diagram of an existing jib structure;
The schematic diagram of Fig. 2 the utility model jib structure one preferred embodiment;
Fig. 3 is that enlarged drawing is overlooked in the part of Fig. 2;
Fig. 4 is the enlarged drawing of bearing pin among Fig. 3;
The schematic diagram of another preferred embodiment of Fig. 5 utility model jib structure;
Fig. 6 is that enlarged drawing is overlooked in the part of Fig. 5.
Among Fig. 1-6, relevant Reference numeral is as follows:
1, main equipment;
2, first oil cylinder;
3, first jib;
4, hinged seat, 41, first oil cylinder seat, 42, second oil cylinder seat;
5, first connecting rod;
6, second jib;
7, second connecting rod;
8, second oil cylinder;
9, bearing pin, 91, first bearing pin, 92, second bearing pin.
The specific embodiment
Basic design of the present utility model is that first linear actuator, the shared hinged seat of second linear actuator reduce the requirement of strength to first jib and hinged seat.
Describe below in conjunction with accompanying drawing and embodiment.
It should be noted that for the utility model, first linear actuator, second linear actuator can be one of oil cylinder, cylinder or electric pushrod.Being without loss of generality, is that example is described below with the oil cylinder.
See also Fig. 2, Fig. 3, Fig. 4, wherein: the schematic diagram of Fig. 2 the utility model jib structure one preferred embodiment; Fig. 3 is that enlarged drawing is overlooked in the part of Fig. 2; Fig. 4 is the enlarged drawing of bearing pin among Fig. 3.Described jib structure comprises parts such as first jib 3, second jib 6, first connecting rod 5, second connecting rod 7, first oil cylinder 2, second oil cylinder 8, wherein:
First connecting rod 5 is hinged with second connecting rod 7, and pin joint is H; And the other end of first connecting rod 5 and first jib 3 are hinged, and pin joint is E; The other end of second connecting rod 7 and first jib 3 are hinged, and pin joint is G;
Especially, on first jib 3 hinged seat 4 is set; One end of described first oil cylinder 2, second oil cylinder 8 all is hinged on the hinged seat 4.
As shown in Figure 3, Figure 4, a bearing pin 9 is set on the hinged seat 4; Wherein, an end of first oil cylinder 2, second oil cylinder 8 is by shared this bearing pin 9, and hinged with described hinged seat 4, pin joint is C.
In this embodiment, first oil cylinder 2, second oil cylinder, 8 shared hinged seats 4 can improve the force-bearing situation of first jib 3 and hinged seat 4, improve jib structure intensity.Particularly: behind shared hinged seat 4, hinged seat 4 is when being subjected to the active force of an oil cylinder, and another oil cylinder can be shared a part of active force, thereby makes that hinged seat 4 is stressed comparatively balanced; The force-bearing situation that this has improved oil cylinder seat 4 can solve the cracking problem of hinged seat 4; Simultaneously, reduced the rigidity of structure and requirement of strength, and made jib structure simple, compact first jib 3.
In fact, first oil cylinder 2, second oil cylinder 8 also can use bearing pin respectively, are summarized as follows:
See also Fig. 5, Fig. 6, wherein: the schematic diagram of another preferred embodiment of Fig. 5 utility model jib structure; Fig. 6 is that enlarged drawing is overlooked in the part of Fig. 5.Among the figure: first bearing pin 91, second bearing pin 92 are set respectively on the hinged seat 4; One end of first oil cylinder 2 is hinged with hinged seat 4 by first bearing pin 91, and pin joint is C1; One end of second oil cylinder 8 is hinged with hinged seat 4 by second bearing pin 92, and pin joint is C2.
Similar with first embodiment, first oil cylinder 2 of present embodiment, the also shared hinged seat 4 of second oil cylinder 8, thus can improve the force-bearing situation of first jib 3 and hinged seat 4 equally, improve jib structure intensity, do not repeat them here.
In the foregoing description, generally hinged seat 4 roughly is arranged on the middle part of first jib 3, helps the oil cylinder type selecting, also help to improve the force-bearing situation of first jib 3 and hinged seat 4.
Above-mentioned jib structure is particularly suitable for first jib 3 and is the situation of galianconism frame, this be because of oil cylinder can not be oversize cause; When first jib 3 is long-armed, can be at the end fixed connecting rod of first oil cylinder 2 and/or second oil cylinder 8 (figure does not show), thus increase the length of first oil cylinder 2 and/or second oil cylinder 8.Certainly, in such cases, should guarantee to satisfy the structural strength requirement between the connecting rod and first oil cylinder 2 and/or second oil cylinder 8; Usually, can not repeat them here by taking welding manner assurance connection reliability between the two.
Above-mentioned jib structure is particularly suitable for concrete mixer and uses, and its simple in structure, compact in design has application promise in clinical practice.
The above only is a preferred implementation of the present utility model, should be pointed out that above-mentioned preferred implementation should not be considered as restriction of the present utility model, and protection domain of the present utility model should be as the criterion with claim institute restricted portion.For those skilled in the art, in not breaking away from spirit and scope of the present utility model, can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (8)
1, a kind of jib structure comprises: first jib, second jib, and an end is hinged, and the other end of described first jib is hinged on the main equipment; First connecting rod, second connecting rod, an end is hinged, and the other end is hinged with described first jib, second jib respectively; First linear actuator, second linear actuator, an end are connected with described first jib respectively, and the other end is hinged with described main equipment, first connecting rod respectively; It is characterized in that, on described first jib hinged seat is set; One end of described first linear actuator, second linear actuator all is hinged on the described hinged seat.
2, jib structure as claimed in claim 1 is characterized in that, a bearing pin is set on the described hinged seat; One end of described first linear actuator, second linear actuator is hinged by shared described bearing pin and described hinged seat.
3, jib structure as claimed in claim 1 is characterized in that, first bearing pin, second bearing pin are set on the described hinged seat; One end of described first linear actuator, second linear actuator is hinged by described first bearing pin, second bearing pin and described hinged seat respectively.
4, novel jib structure as claimed in claim 1 is characterized in that, described hinged seat roughly is arranged on the middle part of described first jib.
5, jib structure as claimed in claim 1, it is characterized in that, the end of described first linear actuator and/or second linear actuator is fixed with connecting rod, is used to increase the length of described first linear actuator and/or second linear actuator.
As each described jib structure of claim 1-5, it is characterized in that 6, described first linear actuator, second linear actuator are oil cylinder, cylinder or electric pushrod.
7, a kind of concrete mixer is characterized in that, comprises each described jib structure as claim 1-5.
8, concrete mixer as claimed in claim 7 is characterized in that, described first linear actuator, second linear actuator are oil cylinder, cylinder or electric pushrod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201845109U CN201330505Y (en) | 2008-12-26 | 2008-12-26 | Boom structure and concrete pump truck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201845109U CN201330505Y (en) | 2008-12-26 | 2008-12-26 | Boom structure and concrete pump truck |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201330505Y true CN201330505Y (en) | 2009-10-21 |
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ID=41223884
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201845109U Expired - Fee Related CN201330505Y (en) | 2008-12-26 | 2008-12-26 | Boom structure and concrete pump truck |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201330505Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101793092B (en) * | 2010-02-05 | 2011-07-06 | 三一重工股份有限公司 | Concrete pump truck and boom device thereof |
| WO2013044627A1 (en) * | 2011-09-28 | 2013-04-04 | 湖南三一智能控制设备有限公司 | Arm support action control system and concrete pump truck |
| WO2015032049A1 (en) * | 2013-09-05 | 2015-03-12 | 中联重科股份有限公司 | Boom structure and method for manufacturing same, boom and method for arranging same, and pumping device |
-
2008
- 2008-12-26 CN CNU2008201845109U patent/CN201330505Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101793092B (en) * | 2010-02-05 | 2011-07-06 | 三一重工股份有限公司 | Concrete pump truck and boom device thereof |
| WO2013044627A1 (en) * | 2011-09-28 | 2013-04-04 | 湖南三一智能控制设备有限公司 | Arm support action control system and concrete pump truck |
| WO2015032049A1 (en) * | 2013-09-05 | 2015-03-12 | 中联重科股份有限公司 | Boom structure and method for manufacturing same, boom and method for arranging same, and pumping device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SANY AUTOMOBILE MANUFACTURING CO., LTD. Free format text: FORMER OWNER: SANYI HEAVY INDUSTRY CO LTD Effective date: 20130508 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20130508 Address after: 410100 Changsha economic and Technological Development Zone, Hunan City, the 31 industrial city Patentee after: SANY Automobile Manufacturing Co., Ltd. Address before: 410100 Changsha economic and Technological Development Zone, Hunan City, the 31 industrial city Patentee before: Sanyi Heavy Industry Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091021 Termination date: 20161226 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |