CN203613805U - Pump truck cantilever crane mechanism and concrete pump truck - Google Patents
Pump truck cantilever crane mechanism and concrete pump truck Download PDFInfo
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- CN203613805U CN203613805U CN201320711240.3U CN201320711240U CN203613805U CN 203613805 U CN203613805 U CN 203613805U CN 201320711240 U CN201320711240 U CN 201320711240U CN 203613805 U CN203613805 U CN 203613805U
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- hinged
- jib
- hydraulic jack
- wallboard
- cantilever crane
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Abstract
The utility model discloses a pump truck cantilever crane mechanism. The pump truck cantilever crane mechanism comprises a first cantilever crane, a second cantilever crane, a hydraulic oil cylinder, a triangular arm and a connecting rod, wherein the second cantilever crane is hinged to the first cantilever crane through a hinged shaft; a cylinder body of the hydraulic oil cylinder is hinged to the first cantilever crane; the first hinged end of the triangular arm is hinged to the second cantilever crane, and the second hinged end of the triangular arm is hinged to a piston rod of the hydraulic oil cylinder; one end of the connecting rod is hinged to the third hinged end of the triangular arm, and the other end of the connecting rod is hinged to the first cantilever crane. According to the pump truck cantilever crane mechanism, the triangular arm and the hydraulic oil cylinder are arranged on the different cantilever cranes; compared with the triangular arm and the hydraulic oil cylinder arranged on the same cantilever crane in the prior art, the vertical distance between the hinged shaft and the hydraulic oil cylinder is greater; under the precondition of equal applied work, mean effort of the hydraulic oil cylinder is reduced, thus the type, size and weight of the hydraulic oil cylinder are reduced, the manufacturing cost is saved, and the economic benefits are improved. The utility model further discloses a concrete pump truck.
Description
Technical field
The utility model relates to concrete mixer technical field, more particularly, relates to a kind of pumping vehicle arm rack mechanism and concrete mixer.
Background technology
Concrete mixer is widely used in building trade, and pumping vehicle arm rack quality is larger, stretches and shrinks and do work to realize by oil cylinder.As shown in Figure 1, the motion of pumping vehicle arm rack mechanism mainly provides active force by hydraulic jack 103, hydraulic jack 103 promotes the four-bar mechanism of connecting rod 102, Triangular Arm 101 and jib (jib comprises the first hinged jib 104 and the second jib 105) composition, make it motion, thereby drive jib to rotate, reach the object that stretches and shrink.
As depicted in figs. 1 and 2, hydraulic jack 103 actings promote jib and launch, hydraulic jack 103 strokes are relatively little, work is certain, mean effort will be larger, maximum force is also larger, and maximum force has determined model and the cylinder diameter of hydraulic jack, therefore must select the oil cylinder of large model.And hydraulic jack is large, cost is just high, and quality and volume are also just large, and portion size that can corresponding increase connecting rod 102, Triangular Arm 101 and jib further increases the weight of pump truck, strengthens load, reduces fuel economy.
In addition, as shown in Figure 3, the connecting rod 102 of existing pump truck beam mechanism is built-in, must slot in the end of jib, install U-shaped stiffener additional, reserve large quantity space for Triangular Arm 101 and connecting rod 102 are installed, make jib structure complexity, end broadens, and has increased jib weight, has strengthened the load of pump truck.
Therefore, how to reduce hydraulic jack maximum force in the course of the work, thereby reduce model, the volume and weight of hydraulic jack, save manufacturing cost, increase economic efficiency, become those skilled in the art's technical problem urgently to be resolved hurrily.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of pumping vehicle arm rack mechanism, to reduce hydraulic jack maximum force in the course of the work, thereby reduces model, the volume and weight of hydraulic jack, saves manufacturing cost, increases economic efficiency;
The purpose of this utility model is to provide a kind of concrete mixer with above-mentioned pump truck beam mechanism.
For achieving the above object, the utility model provides following technical scheme:
One pumping vehicle arm rack mechanism, comprising:
The first jib;
By jointed shaft and hinged the second jib of described the first jib;
Hydraulic jack, the cylinder body of described hydraulic jack is articulated with on described the first jib;
Triangular Arm, the first hinged end of described Triangular Arm and described the second jib are hinged, and the piston rod of the second hinged end and described hydraulic jack is hinged;
Connecting rod, the 3rd hinged end of one end of described connecting rod and described Triangular Arm is hinged, and the other end and described the first jib are hinged.
Preferably, in above-mentioned pump truck beam mechanism, one end of described connecting rod is articulated with on the outer wall of described Triangular Arm, and the other end is articulated with on the outer wall of described the first jib.
Preferably, in above-mentioned pump truck beam mechanism, described Triangular Arm comprises the first wallboard and the second wallboard that are arranged in parallel, described the first wallboard is connected by connecting rod with the second wallboard, described the first wallboard and the second wallboard are held on described the second jib, and pass described the first wallboard, the second jib and the second wallboard by bearing pin and realize the hinged of Triangular Arm and described the second jib.
Preferably, in above-mentioned pump truck beam mechanism, the end of the piston rod of described hydraulic jack is provided with contiguous block, described contiguous block is arranged between described the first wallboard and the second wallboard, and passes described the first wallboard, contiguous block and the second wallboard by bearing pin and realize the hinged of the piston rod of described hydraulic jack and described Triangular Arm.
Preferably, in above-mentioned pump truck beam mechanism, the cylinder body of described hydraulic jack is articulated with on the hinged seat of described the first jib.
Preferably, in above-mentioned pump truck beam mechanism, the distance between described the second hinged end and described the 3rd hinged end is less than the distance between described the 3rd hinged end and described the first hinged end;
Distance between described the second hinged end and described the 3rd hinged end is less than the distance between described the second hinged end and described the first hinged end.
A kind of concrete mixer, comprises pumping vehicle arm rack mechanism, and described pumping vehicle arm rack mechanism is the as above pumping vehicle arm rack mechanism described in any one.
Can find out from above-mentioned technical scheme, the pumping vehicle arm rack mechanism that the utility model provides, piston rod by hydraulic jack stretches out, promote the four-bar mechanism motion of connecting rod, Triangular Arm, the first jib and the second jib composition, thereby drive the first jib and the second jib to relatively rotate, reach the object that stretches and shrink.
The utility model compared with prior art, exchange the position of Triangular Arm and connecting rod, hinged by Triangular Arm and the second jib, and by hinged to connecting rod and the first jib, and hydraulic jack is articulated with on the first jib, and Triangular Arm and hydraulic jack have been installed on different jibs.Along with the extension elongation of the piston rod of hydraulic jack increases gradually, can make jointed shaft increase apart from the vertical distance of hydraulic jack.Because Triangular Arm and hydraulic jack have been installed on different jibs, be installed on identical jib and compared with hydraulic jack with the Triangular Arm of prior art, jointed shaft is larger apart from the vertical distance of hydraulic jack, under the equal prerequisite of acting, the mean effort of hydraulic jack will reduce, thereby reduce model, the volume and weight of hydraulic jack, saved manufacturing cost, improved economic benefit.
In addition, in another technical scheme of the utility model, one end of connecting rod is articulated with on the outer wall of described Triangular Arm, and the other end is articulated with on the outer wall of described the first jib, adopts the external mode of connecting rod, solve jib end and must leave enough spaces because placing connecting rod, Triangular Arm, jib end cross-sectional width is increased, and the problem that jib weight increases, has effectively reduced jib end cross-sectional width, reduce jib weight, and made jib structure more compact.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment 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 embodiment more of the present utility model, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the structural representation of pumping vehicle arm rack of the prior art mechanism;
Fig. 2 is the kinematic sketch of pumping vehicle arm rack of the prior art mechanism;
Fig. 3 is the partial structurtes schematic diagram of pumping vehicle arm rack of the prior art mechanism;
The structural representation of the pumping vehicle arm rack mechanism that Fig. 4 provides for the utility model embodiment;
The kinematic sketch of the pumping vehicle arm rack mechanism that Fig. 5 provides for the utility model embodiment;
The partial structurtes schematic diagram of the pumping vehicle arm rack mechanism that Fig. 6 provides for the utility model embodiment.
Wherein:
101 is Triangular Arm, and 102 is connecting rod, and 103 is hydraulic jack, and 104 is the first jib, and 105 is the second jib;
201 is Triangular Arm, and 202 is connecting rod, and 203 is hydraulic jack, and 204 is the first jib, and 205 is the second jib.
The specific embodiment
Core of the present utility model is to provide a kind of pumping vehicle arm rack mechanism, to reduce hydraulic jack maximum force in the course of the work, thereby reduces model, the volume and weight of hydraulic jack, saves manufacturing cost, increases economic efficiency;
Core of the present utility model is to provide a kind of concrete mixer with above-mentioned pump truck beam mechanism.
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment obtaining under creative work prerequisite, all belong to the scope of the utility model protection.
Refer to Fig. 4 and Fig. 5, the structural representation of the pumping vehicle arm rack mechanism that Fig. 4 provides for the utility model embodiment; The kinematic sketch of the pumping vehicle arm rack mechanism that Fig. 5 provides for the utility model embodiment.
The pumping vehicle arm rack mechanism 1 that the utility model embodiment provides, comprises the first jib 204, the second jib 205, hydraulic jack 203, Triangular Arm 201 and connecting rod 202.
Wherein, the first jib 204 can be fixed arm, and it is relatively motionless, and the second jib 205 is hinged by jointed shaft and the first jib 204, and the second jib 205 is rotatable with respect to the first jib 204, thereby reaches the object that stretches and shrink.
Because the piston rod of hydraulic jack 203 is after stretching out, hydraulic jack 203 can deflect, and therefore the cylinder body of hydraulic jack 203 is articulated with on the first jib 204, thereby reaches enough degree of freedom.Triangular Arm 201 has three hinged ends, and the first hinged end and the second jib 205 are hinged, and the piston rod of the second hinged end and hydraulic jack 203 is hinged.
The 3rd hinged end of one end of connecting rod 202 and Triangular Arm 201 is hinged, and the other end and the first jib 204 are hinged.The 3rd hinged end is with respect to more close the first jib 204 of the second hinged end, and connecting rod 202 is with respect to more close the first jib 204 of the second jib 205.
The pumping vehicle arm rack mechanism that the utility model provides, piston rod by hydraulic jack 203 stretches out, promote the four-bar mechanism motion that connecting rod 202, Triangular Arm 201, the first jib 204 and the second jib 205 form, thereby drive the first jib 204 and the second jib 205 to relatively rotate, reach the object that stretches and shrink.
The utility model compared with prior art, exchange the position of Triangular Arm 201 and connecting rod 202, hinged by Triangular Arm 201 and the second jib 205, and by hinged to connecting rod 202 and the first jib 204, and hydraulic jack 203 is articulated with on the first jib 204, and Triangular Arm 201 and hydraulic jack 203 have been installed on different jibs.Along with the extension elongation of the piston rod of hydraulic jack 203 increases gradually, can make jointed shaft (being the jointed shaft of hinged the first jib 204 and the second jib 205) increase apart from the vertical distance of hydraulic jack 203.Because Triangular Arm 201 and hydraulic jack 203 have been installed on different jibs, be installed on identical jib and compared with hydraulic jack with the Triangular Arm of prior art, jointed shaft is larger apart from the vertical distance of hydraulic jack 203, under the equal prerequisite of acting, the mean effort of hydraulic jack 203 will reduce, thereby reduce model, the volume and weight of hydraulic jack 203, saved manufacturing cost, improved economic benefit.
When hydraulic jack 203 launches two jibs approach parallel, herein just by two jibs when parallel the active force of hydraulic jack 203 be considered as maximum force.Jib stress balance, jointed shaft (being the jointed shaft of hinged the first jib 204 and the second jib 205) is two jib connecting places, jib rotates around it, for jointed shaft, moment is zero, suppose that the moment that the second jib 205 produces is W, jointed shaft is L to the distance of hydraulic jack 203, and cylinder force is Fmax;
Have: W+Fmax × L=0 Fmax=-W/L
Can obtain the distance L 1=180mm of jointed shaft of the present utility model to hydraulic jack 203 by actual measurement;
The in like manner distance L 2=113mm to hydraulic jack for the jointed shaft of prior art;
F1max/F2max=L2/L1=113/118=63%, wherein F1max is cylinder force of the present utility model, the cylinder force that F2max is prior art.
The technical solution of the utility model as can be seen here, the maximum force of hydraulic jack 203 has reduced 37%, and the diameter of hydraulic jack 203 also will reduce greatly, and the volume and weight of hydraulic jack 203 also will reduce greatly, and cost also can reduce.
Refer to Fig. 6, the partial structurtes schematic diagram of the pumping vehicle arm rack mechanism that Fig. 6 provides for the utility model embodiment.
In the utility model one specific embodiment, one end of connecting rod 202 is articulated with on the outer wall of Triangular Arm 201, the other end is articulated with on the outer wall of the first jib 204, adopt the external mode of connecting rod 202, solved jib end because placement connecting rod 202, Triangular Arm 201 must leave enough spaces, jib end cross-sectional width is increased, the problem that jib weight increases, effectively reduce jib end cross-sectional width, reduced jib weight, and made jib structure more compact.
In the utility model one specific embodiment, Triangular Arm 201 comprises the first wallboard and the second wallboard that are arranged in parallel, the first wallboard is connected by connecting rod with the second wallboard, the first wallboard and the second wallboard are held on the second jib 205, the second jib 205 is arranged between the first wallboard and the second wallboard, and passes the first wallboard, the second jib 205 and the second wallboard by bearing pin and realize the hinged of Triangular Arm 201 and the second jib 205.
The utility model, by the first wallboard and the second wallboard that Triangular Arm 201 is designed to connect by connecting rod, can make Triangular Arm 201 have certain width, thereby can improve the intensity of Triangular Arm 201, guarantees that Triangular Arm 201 has certain application life.
In the utility model one specific embodiment, the end of the piston rod of hydraulic jack 203 is provided with contiguous block, contiguous block is arranged between the first wallboard and the second wallboard, and passes the first wallboard, contiguous block and the second wallboard by bearing pin and realize the hinged of the piston rod of hydraulic jack 203 and Triangular Arm 201.It should be noted that, contiguous block also can be set, directly by hinged to piston rod and the first wallboard and the second wallboard.
In the utility model one specific embodiment, the cylinder body of hydraulic jack 203 is articulated with on the hinged seat of the first jib 204.A hinged seat is set on the first jib 204, and the cylinder body of hydraulic jack 203 is articulated with on this hinged seat, can be for the rotation of hydraulic jack 203 provides enough activity spaces, avoid causing stuck with the first jib 204 butts in hydraulic jack 203 rotation processes.
In the utility model one specific embodiment, the distance between the second hinged end and the 3rd hinged end is less than the distance between the 3rd hinged end and the first hinged end; Distance between the second hinged end and the 3rd hinged end is less than the distance between the second hinged end and the first hinged end.
The utility model embodiment also discloses a kind of concrete mixer, comprises pumping vehicle arm rack mechanism, and wherein, pumping vehicle arm rack mechanism is the as above disclosed pumping vehicle arm rack of embodiment mechanism.Owing to adopting the disclosed pumping vehicle arm rack of above-described embodiment mechanism, therefore have all technique effects of above-mentioned pump truck beam mechanism concurrently, do not repeat them here herein.
In this manual, each embodiment adopts the mode of going forward one by one to describe, and what each embodiment stressed is and the difference of other embodiment, between each embodiment identical similar part mutually referring to.
To the above-mentioned explanation of the disclosed embodiments, make professional and technical personnel in the field can realize or use the utility model.To be apparent for those skilled in the art to the multiple modification of these embodiment, General Principle as defined herein can, in the situation that not departing from spirit or scope of the present utility model, realize in other embodiments.Therefore, the utility model 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 (7)
1. a pumping vehicle arm rack mechanism, is characterized in that, comprising:
The first jib (204);
By jointed shaft and hinged the second jib (205) of described the first jib (204);
Hydraulic jack (203), the cylinder body of described hydraulic jack (203) is articulated with on described the first jib (204);
Triangular Arm (201), the first hinged end of described Triangular Arm (201) and described the second jib (205) are hinged, and the piston rod of the second hinged end and described hydraulic jack (203) is hinged;
Connecting rod (202), the 3rd hinged end of one end of described connecting rod (202) and described Triangular Arm (201) is hinged, and the other end and described the first jib (204) are hinged.
2. pumping vehicle arm rack as claimed in claim 1 mechanism, is characterized in that, one end of described connecting rod (202) is articulated with on the outer wall of described Triangular Arm (201), and the other end is articulated with on the outer wall of described the first jib (204).
3. pumping vehicle arm rack as claimed in claim 1 mechanism, it is characterized in that, described Triangular Arm (201) comprises the first wallboard and the second wallboard that are arranged in parallel, described the first wallboard is connected by connecting rod with the second wallboard, described the first wallboard and the second wallboard are held on described the second jib (205), and pass described the first wallboard, the second jib (205) and the second wallboard by bearing pin and realize the hinged of Triangular Arm (201) and described the second jib (205).
4. pumping vehicle arm rack as claimed in claim 3 mechanism, it is characterized in that, the end of the piston rod of described hydraulic jack (203) is provided with contiguous block, described contiguous block is arranged between described the first wallboard and the second wallboard, and passes described the first wallboard, contiguous block and the second wallboard by bearing pin and realize the hinged of the piston rod of described hydraulic jack (203) and described Triangular Arm (201).
5. the pumping vehicle arm rack mechanism as described in claim 1-4 any one, is characterized in that, the cylinder body of described hydraulic jack (203) is articulated with on the hinged seat of described the first jib (204).
6. the pumping vehicle arm rack mechanism as described in claim 1-4 any one, is characterized in that, the distance between described the second hinged end and described the 3rd hinged end is less than the distance between described the 3rd hinged end and described the first hinged end;
Distance between described the second hinged end and described the 3rd hinged end is less than the distance between described the second hinged end and described the first hinged end.
7. a concrete mixer, comprises pumping vehicle arm rack mechanism, it is characterized in that, described pumping vehicle arm rack mechanism is the pumping vehicle arm rack mechanism as described in claim 1-6 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320711240.3U CN203613805U (en) | 2013-11-12 | 2013-11-12 | Pump truck cantilever crane mechanism and concrete pump truck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320711240.3U CN203613805U (en) | 2013-11-12 | 2013-11-12 | Pump truck cantilever crane mechanism and concrete pump truck |
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| Publication Number | Publication Date |
|---|---|
| CN203613805U true CN203613805U (en) | 2014-05-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320711240.3U Expired - Fee Related CN203613805U (en) | 2013-11-12 | 2013-11-12 | Pump truck cantilever crane mechanism and concrete pump truck |
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| CN (1) | CN203613805U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104100822A (en) * | 2014-08-04 | 2014-10-15 | 山东鸿达建工集团有限公司 | Lubrication system for boom and connection rod of concrete pump truck |
| CN106840491A (en) * | 2016-12-24 | 2017-06-13 | 北汽福田汽车股份有限公司 | The stand under load detection method of pumping vehicle arm rack, device and pump truck |
| EP3477018A1 (en) * | 2017-10-26 | 2019-05-01 | Schwing GmbH | Hollow two point lever |
-
2013
- 2013-11-12 CN CN201320711240.3U patent/CN203613805U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104100822A (en) * | 2014-08-04 | 2014-10-15 | 山东鸿达建工集团有限公司 | Lubrication system for boom and connection rod of concrete pump truck |
| CN106840491A (en) * | 2016-12-24 | 2017-06-13 | 北汽福田汽车股份有限公司 | The stand under load detection method of pumping vehicle arm rack, device and pump truck |
| CN106840491B (en) * | 2016-12-24 | 2019-06-11 | 北汽福田汽车股份有限公司 | Loaded detection method, device and the pump truck of pumping vehicle arm rack |
| EP3477018A1 (en) * | 2017-10-26 | 2019-05-01 | Schwing GmbH | Hollow two point lever |
| CN109707168A (en) * | 2017-10-26 | 2019-05-03 | 德国施维英有限公司 | Hollow two point form bar |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140528 Termination date: 20211112 |