CN203372210U - Device for measuring support force of landing leg and landing leg - Google Patents
Device for measuring support force of landing leg and landing leg Download PDFInfo
- Publication number
- CN203372210U CN203372210U CN201320451416.6U CN201320451416U CN203372210U CN 203372210 U CN203372210 U CN 203372210U CN 201320451416 U CN201320451416 U CN 201320451416U CN 203372210 U CN203372210 U CN 203372210U
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- supporting leg
- liner plate
- positioning framework
- measurement mechanism
- support leg
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Abstract
The utility model provides a device for measuring the support force of a landing leg and the landing leg. The device for measuring the support force of the landing leg comprises a base, a force measurement sensor fixedly arranged on the upper surface of the base and a locating device which is fixedly arranged on the base so as to limit the relative motion of the base and the landing leg in the horizontal direction. According to the device for measuring the support force of the landing leg and the landing leg, the force measurement sensor is arranged on the base, the relative motion of the base and the landing leg in the horizontal direction is limited through the locating device, and namely, the base moves along with the landing leg in the horizontal direction, so that lateral sliding of the landing leg relative to the force measurement sensor is avoided, the force measurement sensor can continuously and reliably measure the support force of the landing leg, and the force measurement precision is improved.
Description
Technical field
The utility model relates to the bearing force fields of measurement, in particular to a kind of supporting leg bearing force measurement mechanism and supporting leg.
Background technology
Large engineering vehicle has several support leg (being generally four), and engineering truck is in operation process, and each supporting leg supports complete vehicle weight jointly, enlarges car load stabilized zone area, improves whole vehicle stability.In operation process, the stressed meeting of each supporting leg changes, and measures the reaction of bearing of ground in the face of each support leg liner plate, and the stressed variation of each supporting leg of observable, reflect the variation of car load center of gravity, judges that whether car load is stable, avoids occurring the car load overthrow accident.
When in prior art, the measurement supporting leg is stressed, as shown in Figure 1, operation supporting leg 10 is directly to lower compression force transducer 1 dynamometry, due to 1 of support leg device (as support leg liner plate 11) and force transducer without any device, the downward power of supporting leg 10 can not ensure vertical stable in addition, produce at any time the power of unbalance loading, the direction of the power of unbalance loading is parallel to horizontal surface.Very easily produce slippage during the supporting leg dynamometry, even slippage goes out the measured zone of force transducer 1, can make car load gravity can not concentrate on the working sensor face, causes to measure and is forbidden maybe can't measure.
The utility model content
The utility model aims to provide a kind of supporting leg bearing force measurement mechanism and supporting leg that prevents the relative force transducer lateral sliding of supporting leg.
The utility model provides a kind of supporting leg bearing force measurement mechanism, comprises base, is fixedly installed on the force transducer of base upper surface, and be fixedly installed on base to limit the registration device of base and the relative motion of supporting leg along continuous straight runs.
Further, registration device comprises positioning framework, and positioning framework vertically extends; The outward flange of the support leg liner plate of supporting leg matches with the inside face of positioning framework, and positioning framework vertically is set in outside support leg liner plate movingly.
Further, registration device also comprises and being arranged on positioning framework to prevent the position limiting structure of support leg liner plate prolapse upwards positioning framework.
Further, supporting leg bearing force measurement mechanism also comprises the fulcrum locating piece, and the fulcrum locating piece is fixedly installed on the lower surface of support leg liner plate.
Further, the upper surface of force transducer is convex globoidal, and the lower surface of fulcrum locating piece has and the arcs of recesses groove of convex globoidal location to the heart.
Further, support leg liner plate is circular, and positioning framework is circular sleeve, the outer peripheral face free-running fit of positioning framework inside face and support leg liner plate.
Further, the nadir of the center of fulcrum locating piece, arcs of recesses groove and the center of circle of support leg liner plate are positioned on the same vertical curve, and the center of force transducer and the vertex of convex globoidal are positioned on the central axis of positioning framework.
Further, base is circular, and positioning framework is set on the outer peripheral face of base, and the lower surface of base is lower than the lower surface of positioning framework.
Further, position limiting structure is a plurality of blocks that are arranged on the positioning framework upper end, and a plurality of blocks arrange along the positioning framework even circumferential.
The utility model also provides a kind of supporting leg, comprises the supporting leg body, is arranged on the support leg liner plate of supporting leg body lower end, also is equipped with aforesaid supporting leg bearing force measurement mechanism on support leg liner plate.
According to supporting leg bearing force measurement mechanism of the present utility model and supporting leg, force transducer is arranged on base, and limits the relative motion of base and supporting leg along continuous straight runs by registration device.In the horizontal direction, base moves with supporting leg, prevents the relative force transducer lateral sliding of supporting leg, guarantees the bearing force that force transducer always can the reliable measurements supporting leg, improves the dynamometry precision.
The accompanying drawing explanation
The accompanying drawing that forms the application's a part is used to provide further understanding of the present utility model, and schematic description and description of the present utility model, for explaining the utility model, does not form improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 is supporting leg bearing force instrumentation plan in prior art;
Fig. 2 is the semi-sictional view structural representation vertically according to supporting leg bearing force measurement mechanism of the present utility model; And
Fig. 3 be in Fig. 2 along A-A to the sectional structure schematic diagram.
The specific embodiment
Describe below with reference to the accompanying drawings and in conjunction with the embodiments the utility model in detail.
As shown in Figure 2, according to supporting leg bearing force measurement mechanism of the present utility model, comprise base 20, be fixedly installed on the force transducer 30 of base 20 upper surfaces, and be fixedly installed on the registration device 40 relatively moved with restriction base 20 and supporting leg 10 along continuous straight runs on base 20.The utility model is by force transducer 30 is arranged on base 20, and the relative motion with supporting leg 10 along continuous straight runs by registration device 40 restriction bases 20.In the horizontal direction, base 20 moves with supporting leg 10, prevents supporting leg 10 and the relative slippage of force transducer 30 side direction, guarantees the bearing force that force transducer 30 always can reliable measurements supporting leg 10, improves the dynamometry precision.
Particularly, as shown in Figure 2, registration device 40 comprises positioning framework 41, and positioning framework 41 vertically extends, the outward flange of the support leg liner plate 11 of supporting leg 10 matches with the inside face of positioning framework 41, and positioning framework 41 vertically is set in outside support leg liner plate 11 movingly.41 pairs of support leg liner plates 11 of positioning framework are spacing, be that support leg liner plate 11 can only move in the scope of positioning framework 41, therefore the distance between the medial surface of the edge of support leg liner plate 11 and positioning framework 41 is less, the relative motion scope is less, thereby assurance supporting leg 10 is aimed at force transducer 30, improves survey precision.The shape of positioning framework 41 is set according to the shape of support leg liner plate 11, and while being square as support leg liner plate 11, to needing that the side's of being complementary positioning framework is set, positioning framework 41 can be integral type, also can be interconnected to form the frame shape for adopting a plurality of poles.
Support leg liner plate 11 vertically can be movable relatively with positioning framework 41, and 41 pairs of support leg liner plates 11 of positioning framework, without supporting role, are also that the application force of support leg liner plate 11 all acts on force transducer 30, prevents 41 pairs of dynamometry results interference of positioning framework.
Preferably, as shown in Figure 2, registration device 40 also comprises and is arranged on positioning framework 41 position limiting structure 42 of deviating from positioning framework 41 when preventing support leg liner plate 11 upward movement, also prevent that supporting leg 10 supporting leg bearing force measurement mechanism when upward movement breaks away from supporting leg 10, thereby, when supporting leg 10 is fallen again, support leg liner plate 11 can align again with force transducer 30.Position limiting structure 42 is detachable, before supporting leg bearing force measurement mechanism dynamometry is installed, first position limiting structure 42 is pulled down, then from the top of positioning framework 41, support leg liner plate 11 is inserted in, make support leg liner plate 11 enter positioning framework 41, and contact force transducer 30, then that position limiting structure 42 is fixing.It should be noted that, when support leg liner plate 11 contacts with force transducer 30, there is gap between position limiting structure 42 and support leg liner plate 11, be that support leg liner plate 11 has certain free-moving stroke, be also that support leg liner plate 11 can simultaneously not contact force transducer 30 and position limiting structure 42, thereby prevent position limiting structure 42, support leg liner plate 11 be pressed on force transducer 30 and cause result of a measurement the situation of error to occur.Position limiting structure 42, according to the shape setting of support leg liner plate 11, meets and prevents that support leg liner plate 11 prolapse upwards positioning frameworks 41 from getting final product.
As shown in Figure 2, supporting leg bearing force measurement mechanism also comprises fulcrum locating piece 50, fulcrum locating piece 50 is fixedly installed on the lower surface of support leg liner plate 11, by fulcrum locating piece 50 is set, block the auxiliary hole on support leg liner plate 11 lower surfaces, avoid force transducer 30 directly to contact with support leg liner plate 11, cause force transducer 30 discontinuity.Usually, fulcrum locating piece 50 is fixed by the auxiliary hole on support leg liner plate 11 lower surfaces, also can adopt other fixed forms, as by being spirally connected, is connected on support leg liner plate 11.
Preferably, the upper surface of force transducer 30 is convex globoidal 31, and the lower surface of fulcrum locating piece 50 has and the arcs of recesses groove 51 of convex globoidal 31 location to the heart.Convex globoidal 31 has the mutual effect to the heart with arcs of recesses groove 51, thereby makes to guarantee that the supporting leg bearing force vertically navigates on force transducer 30.Force transducer 30 also can adopt other fitting surfaces with location centering function with fulcrum locating piece 50, thereby guarantees that the bearing capacity of supporting leg can vertically navigate on force transducer 30.
Particularly, as shown in Figure 3, in preferred embodiment of the present utility model, support leg liner plate 11 is circular, for reliable location, guarantee that supporting leg bearing force measurement mechanism moves with supporting leg, positioning framework 41 is arranged to the circular sleeve shape coordinated with circular support leg liner plate 11, the outer peripheral face free-running fit of circular sleeve inside face and support leg liner plate 11, guarantee that support leg liner plate 11 can be at the inner up-and-down movement of circular sleeve.
Accordingly, base 20 also is set to circle, and circular sleeve is set on the outer peripheral face of base 20, and the lower surface of base 20 is lower than the lower surface of circular sleeve.Be that circular sleeve only plays positioning action, do not bear bearing force.Position limiting structure 42 is for being arranged on a plurality of blocks of circular sleeve upper end, a plurality of blocks arrange along the circular sleeve even circumferential, when supporting leg lifts, supporting leg bearing force measurement mechanism hangs on support leg liner plate 11 by a plurality of blocks, when supporting leg falls again, support leg liner plate 11 aligns again with force transducer.
Preferably, in order to keep bearing force, be centered on the surveying work face of force transducer 30, the nadir of fulcrum locating piece 50 center, arcs of recesses groove 51 and the center of circle of support leg liner plate 11 are positioned on the same vertical curve.Accordingly, the vertex of force transducer 30 center and convex globoidal 31 is positioned on the central axis of circular sleeve, when the arcs of recesses groove 51 of fulcrum locating piece 50 is located the heart with convex globoidal 31 interactions of force transducer 30, the central alignment of support leg liner plate 11 center and force transducer 30, bearing force is centered on the surveying work face of force transducer 30.
The utility model also provides a kind of supporting leg 10, comprises the supporting leg body, is arranged on the support leg liner plate 11 of supporting leg body lower end, also is equipped with aforesaid supporting leg bearing force measurement mechanism on support leg liner plate 11.During the engineering truck operation, the common complete vehicle weight that supports of each supporting leg 10, gravity (bearing force) is centered on force transducer 30 by fulcrum locating piece 50.
When supporting leg is stressed, change, while causing supporting leg 10 that the lateral sliding motion occurs, support leg liner plate 11 retrains mutually with positioning framework 41, thereby makes support leg liner plate 11 drive the motion of supporting leg bearing force measurement mechanism, and the bearing force of supporting leg 10 acts on the surveying work face of force transducer 30 all the time.
When engineering truck during in operation, supporting leg is stressed to change while causing certain supporting leg to lift, support leg liner plate 11 and position limiting structure 42(block) contact, be subject to block constraint support leg liner plate 11 can not break away from whole measurement mechanism, after supporting leg falls, support leg liner plate is centered on the surveying work face of force transducer 30 by fulcrum locating piece 50.In whole measurement process, supporting leg bearing force measurement mechanism is the connection leg backing plate all the time, guarantees that bearing force is centered on the surveying work face of force transducer 30, guarantees survey precision.
As can be seen from the above description, the utility model the above embodiments have realized following technique effect:
According to supporting leg bearing force measurement mechanism of the present utility model and supporting leg, need not carry out any structural change or repacking to engineering truck, force transducer is arranged on base, and limits the relative motion of base and supporting leg along continuous straight runs by registration device.In the horizontal direction, base moves with supporting leg, prevents the relative force transducer lateral sliding of supporting leg, guarantees the bearing force that force transducer always can the reliable measurements supporting leg, improves the dynamometry precision.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (10)
1. a supporting leg bearing force measurement mechanism, it is characterized in that, comprise base (20), be fixedly installed on the force transducer (30) of described base (20) upper surface, and it is upper to limit the registration device (40) of described base (20) and supporting leg (10) along continuous straight runs relative motion to be fixedly installed on described base (20).
2. supporting leg bearing force measurement mechanism according to claim 1, is characterized in that,
Described registration device (40) comprises positioning framework (41), and described positioning framework (41) vertically extends;
The outward flange of the support leg liner plate (11) of described supporting leg (10) matches with the inside face of described positioning framework (41), and described positioning framework (41) vertically is set in outside described support leg liner plate (11) movingly.
3. supporting leg bearing force measurement mechanism according to claim 2, is characterized in that,
Described registration device (40) also comprises that being arranged on positioning framework (41) goes up to prevent the position limiting structure (42) of the described positioning framework of described support leg liner plate (11) prolapse upwards (41).
4. supporting leg bearing force measurement mechanism according to claim 3, is characterized in that,
Described supporting leg bearing force measurement mechanism also comprises fulcrum locating piece (50), and described fulcrum locating piece (50) is fixedly installed on the lower surface of described support leg liner plate (11).
5. supporting leg bearing force measurement mechanism according to claim 4, is characterized in that,
The upper surface of described force transducer (30) is convex globoidal (31), and the lower surface of described fulcrum locating piece (50) has and the arcs of recesses groove (51) of described convex globoidal (31) location to the heart.
6. supporting leg bearing force measurement mechanism according to claim 5, is characterized in that,
Described support leg liner plate (11) is circular, and described positioning framework (41) is circular sleeve, the outer peripheral face free-running fit of described positioning framework (41) inside face and described support leg liner plate (11).
7. supporting leg bearing force measurement mechanism according to claim 6, is characterized in that,
The center of circle of the nadir of the center of described fulcrum locating piece (50), described arcs of recesses groove (51) and described support leg liner plate (11) is positioned on the same vertical curve;
The vertex of the center of described force transducer (30) and described convex globoidal (31) is positioned on the central axis of described positioning framework (41).
8. supporting leg bearing force measurement mechanism according to claim 6, is characterized in that,
Described base (20) is circular, and described positioning framework (41) is set on the outer peripheral face of described base (20), and the lower surface of described base (20) is lower than the lower surface of described positioning framework (41).
9. supporting leg bearing force measurement mechanism according to claim 6, is characterized in that,
Described position limiting structure (42) is for being arranged on a plurality of blocks of described positioning framework (41) upper end, and a plurality of described blocks are along described positioning framework (41) even circumferential setting.
10. a supporting leg (10), comprise the supporting leg body, is arranged on the support leg liner plate (11) of described supporting leg body lower end, it is characterized in that,
Also be equipped with the described supporting leg bearing force of any one measurement mechanism in claim 1 to 9 on described support leg liner plate (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320451416.6U CN203372210U (en) | 2013-07-26 | 2013-07-26 | Device for measuring support force of landing leg and landing leg |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320451416.6U CN203372210U (en) | 2013-07-26 | 2013-07-26 | Device for measuring support force of landing leg and landing leg |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203372210U true CN203372210U (en) | 2014-01-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320451416.6U Expired - Fee Related CN203372210U (en) | 2013-07-26 | 2013-07-26 | Device for measuring support force of landing leg and landing leg |
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| Country | Link |
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| CN (1) | CN203372210U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105241597A (en) * | 2015-09-29 | 2016-01-13 | 北京航天发射技术研究所 | Large-tonnage high-precision platform force measuring system and force measuring method |
| CN111238706A (en) * | 2020-02-14 | 2020-06-05 | 上海上安机械施工有限公司 | Method for detecting supporting force of supporting leg of self-propelled crane |
| CN112414600A (en) * | 2020-11-04 | 2021-02-26 | 中联重科股份有限公司 | Leg force detection device |
| CN113108970A (en) * | 2021-03-03 | 2021-07-13 | 徐州工程学院 | Supporting leg counter-force measuring device and measuring method |
-
2013
- 2013-07-26 CN CN201320451416.6U patent/CN203372210U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105241597A (en) * | 2015-09-29 | 2016-01-13 | 北京航天发射技术研究所 | Large-tonnage high-precision platform force measuring system and force measuring method |
| CN111238706A (en) * | 2020-02-14 | 2020-06-05 | 上海上安机械施工有限公司 | Method for detecting supporting force of supporting leg of self-propelled crane |
| CN111238706B (en) * | 2020-02-14 | 2021-06-01 | 上海上安机械施工有限公司 | Method for detecting supporting force of supporting leg of self-propelled crane |
| CN112414600A (en) * | 2020-11-04 | 2021-02-26 | 中联重科股份有限公司 | Leg force detection device |
| CN112414600B (en) * | 2020-11-04 | 2021-12-10 | 中联重科股份有限公司 | Leg force detection device |
| CN113108970A (en) * | 2021-03-03 | 2021-07-13 | 徐州工程学院 | Supporting leg counter-force measuring device and measuring method |
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| 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 |
Granted publication date: 20140101 Termination date: 20160726 |
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| CF01 | Termination of patent right due to non-payment of annual fee |