CN211395333U - Vertical dynamometry ball-type support - Google Patents
Vertical dynamometry ball-type support Download PDFInfo
- Publication number
- CN211395333U CN211395333U CN201922008059.6U CN201922008059U CN211395333U CN 211395333 U CN211395333 U CN 211395333U CN 201922008059 U CN201922008059 U CN 201922008059U CN 211395333 U CN211395333 U CN 211395333U
- Authority
- CN
- China
- Prior art keywords
- pendulum
- vertical
- sensor
- boss
- bottom plate
- Prior art date
- 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.)
- Active
Links
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/04—Bearings; Hinges
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L1/00—Measuring force or stress, in general
- G01L1/20—Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluids; by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress
- G01L1/22—Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluids; by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress using resistance strain gauges
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
The utility model relates to a vertical dynamometry ball-type support, it includes: the device comprises an upper pendulum, a lower pendulum, an inner conical sensor, a strain gauge and a bottom plate; the lower pendulum is positioned between the upper pendulum and the bottom plate, the lower surface of the upper pendulum is a convex spherical surface, the upper surface of the lower pendulum is a concave spherical surface, and the upper pendulum is in spherical contact with the lower pendulum; the inner conical sensor is positioned between the lower hem and the bottom plate, the strain gauge is arranged on the side surface of the inner conical sensor, and the strain gauge can be connected with the data acquisition unit; the lower surface of the lower hem is provided with a boss, the upper surface of the bottom plate is provided with a groove, the boss is in mutual contact with the inner side surface of the groove, and the boss is not in contact with the bottom of the groove. This scheme can shift the transverse force of support to the support on, obtains wrong data by the influence of support transverse force when avoiding interior cone shape sensor dynamometry, prevents simultaneously that the relative rotation of structure and last pendulum from influencing interior cone shape sensor's measurement above the last pendulum, also can realize the function to test automation and remote monitoring when having satisfied the support function, simple structure and precision are high.
Description
Technical Field
The utility model relates to a bridge field mainly relates to a vertical dynamometry ball-type support.
Background
With the rapid development of national economy and the continuous enhancement of comprehensive national power, the construction of the traffic infrastructure network traversing east and west of China and traversing north and south of China obtains remarkable changes and achievements. Among them, in winding and tortuous long rivers, inland lakes, large branches and rivers of the star-and-go chess, bridges like rainbow are in various postures and are not good at sight, and the method plays an extraordinary role of adding tigers to wings in order to accelerate the economic faster development of China.
In order to ensure that a train can safely run on the bridge, it is very important to monitor and know whether each bridge is in a good working state at any time, the beams of most bridges are connected with piers and abutments through supports, the supports play a role in supporting the self weight of the upper structure of the bridge and the load of the train, and meanwhile, the structural deformation of the bridge due to the load effect and the temperature change is coordinated, and the load borne by the supports changes within a certain range. If the abutment of the bridge is abnormally displaced, the abnormal change of the support is inevitably caused, so that the working state of the bridge can be detected by monitoring the reaction force change condition of the bridge support in real time, and whether the bridge is in a normal range or not is judged.
At present, the existing force measuring support can be influenced by the transverse force of a bridge when a train passes by or in windy weather, and cannot be well detected.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
The utility model aims at providing a vertical dynamometry ball-type support for receive the influence of the horizontal power of support when avoiding vertical dynamometry.
(II) technical scheme
In order to achieve the above object, the utility model provides a vertical dynamometry ball-type support, include: the device comprises an upper pendulum, a lower pendulum, an inner conical sensor, a strain gauge and a bottom plate;
the lower pendulum is positioned between the upper pendulum and the bottom plate, the lower surface of the upper pendulum is a convex spherical surface, the upper surface of the lower pendulum is a concave spherical surface, and the upper pendulum is in spherical contact with the lower pendulum;
the inner conical sensor is positioned between the lower pendulum and the bottom plate, the strain gauge is arranged on the side surface of the inner conical sensor, and the strain gauge can be connected with a data acquisition unit;
the lower surface of the lower hem is provided with a boss, the upper surface of the bottom plate is provided with a groove, the boss is in mutual contact with the inner side surface of the groove, and the boss is not in contact with the bottom of the groove.
Preferably, the upper surface of the inner conical sensor is a slope, and the slope is in contact with the lower surface of the lower pendulum.
Preferably, the ramps are provided with a friction reducing layer.
Preferably, the lower surface of the inner conical sensor is a circular plane.
Preferably, the annular plane is provided with a friction reducing layer.
Preferably, a friction reducing layer is arranged between the concave spherical surface and the convex spherical surface.
Preferably, the outer side surface of the inner conical sensor is provided with a groove, the side surface of the groove is an inclined surface, and the strain gauge is located at the bottom of the groove.
Preferably, the boss is cylindrical.
Preferably, the recess is cylindrical.
Preferably, the boss is in interference fit with the inner side surface of the groove.
(III) advantageous effects
The beneficial effects of the utility model are that, through set up boss and recess on the bottom plate, can shift the transverse force of support to the support completely, thereby influenced and then obtain wrong data by the support transverse force when avoiding interior conical sensor dynamometry, spherical last pendulum can rotate on the lower hem, prevent that the relative rotation of structure and last pendulum above the last pendulum influences the measurement of interior conical sensor, also can realize the function to test automation and remote monitoring when having satisfied the support function, simple structure and precision are high.
Drawings
FIG. 1 is a schematic half-sectional view of a vertical dynamometric spherical support of the present invention;
[ description of reference ]
1: swinging upwards; 2: a lower hem; 3: a strain gauge; 4: an inner cone sensor; 5: base plate
Detailed Description
For a better understanding of the present invention, reference will now be made in detail to the present invention, examples of which are illustrated in the accompanying drawings.
It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, descriptions in the present application as to "first", "second", and the like are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present application, unless expressly stated or limited otherwise, the terms "connected" and "fixed" are to be construed broadly, e.g., "fixed" may be fixedly connected or detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
The utility model provides a vertical dynamometry ball-type support, include: the device comprises an upper pendulum 1, a lower pendulum 2, an inner conical sensor 4, a strain gauge 3 and a bottom plate 5. Referring to fig. 1, the lower hem 2 is located between the upper hem 1 and the bottom plate 5, the lower surface of the upper hem 1 is a convex spherical surface, the upper surface of the lower hem 2 is a concave spherical surface, and the upper hem 1 and the lower hem 2 are in spherical contact. In the preferred embodiment, the upper surface of the upper pendulum 1 is a plane, and can be square, circular, etc., the convex spherical surface of the upper pendulum 1 contacts with the concave spherical surface, so that the upper pendulum 1 can rotate in the convex spherical surface of the lower pendulum 2, the support rotating function is realized, meanwhile, the rotating structure of the support is separated from the stress of the inner conical sensor 4, when the object on the upper pendulum 1 rotates, the rotation of the object does not affect the inner conical sensor 4 below the lower pendulum 2, and the measuring accuracy of the inner conical sensor 4 is ensured. The inner conical sensor 4 is characterized in that the section of the sensor is of a trapezoidal structure, one end with shorter length is close to the sphere center of the concave spherical surface, and the whole sensor is arranged between the lower hem and the base in a conical shape.
The lower surface of lower hem 2 is provided with the boss, the upper surface of bottom plate 5 is provided with the recess, the medial surface of boss and recess contacts each other, boss and recess bottom contactless, in order to prevent that interior toper sensor 4 from receiving the influence of transverse load, when the support receives transverse load, after lower hem 2, can all be passed to the bottom plate 5 by the boss on, and then avoid transverse load to pass to interior toper sensor 4 on, influence the measurement accuracy of toper sensor 4. In the present invention, the direction same as the direction of gravity is downward, and the direction opposite to the direction of gravity is upward.
Wherein, interior tapered sensor 4's upper surface is the inclined plane, and the inclined plane contacts with the lower surface of lower hem 2, and tapered sensor 4's inclined plane cooperation lower hem 2 when receiving the load, can be very effectual with the whole bosss that shift to lower hem 2 and set up of transverse load on, and then guarantee to receive vertical load on the tapered sensor 4, has ensured measurement accuracy.
Furthermore, the inclined plane is provided with an antifriction layer, the antifriction layer can be made of antifriction materials with low friction coefficient and good wear resistance, the antifriction materials have the characteristics of good wear resistance, adhesion resistance and running-in property, good compliance and embedding property, sufficient strength, good thermal conductivity, small thermal expansion coefficient, good corrosion resistance and the like, the antifriction materials such as polytetrafluoroethylene materials, ultra-high molecular weight polyethylene materials and modified polytetrafluoroethylene materials can be adopted, the antifriction layer can well reduce the friction force between the inner conical sensor 4 and the lower hem 2, and the influence of the friction force on a measurement result when a load is applied is avoided.
Wherein, interior tapered sensor 4's lower surface can be annular plane, and annular plane is owing to there is not the edges and corners, so when receiving vertical load, interior tapered sensor 4 is whole can evenly be atred, and then guarantees that the power that foil gage 3 received is more even, has guaranteed measuring result's accuracy, if there is the needs that the bridge supported, interior tapered sensor 4 lower surface also can cooperate bottom plate 5 to be different planes, if square, oval etc..
Furthermore, the annular plane is also provided with an antifriction layer, and the antifriction layer can well reduce the friction force between the inner conical sensor 4 and the bottom plate 5, so that the influence of the friction force on the measurement result is avoided when the load is applied.
Wherein, be provided with antifriction layer between concave spherical surface and the convex spherical surface, the frictional force between the concave spherical surface of layer reduction that should rub between should and the convex spherical surface, and then makes pendulum 1 more smooth when the pivoted.
Further, interior tapered sensor 4's lateral surface is provided with the recess, the side of recess is the inclined plane, foil gage 3 is located the bottom of recess, when interior tapered sensor 4 received vertical load and when deformation, the deformation volume evenly distributed in whole side of its side, rather than concentrating on the position at foil gage 3 place, and after seting up the recess, the stress that interior tapered sensor 4 received just concentrates on inside the recess, foil gage 3 is located the stress that interior tapered sensor 4 of measurement that the recess bottom just can be better received, guarantee the accuracy of data.
The lug boss is cylindrical, and when the cylindrical lug boss is subjected to a transverse load, the cylindrical lug boss can uniformly transmit the received transverse load to the bottom plate 5.
Further, the groove is cylindrical, the shape of the boss and the shape of the groove are not limited to cylindrical shapes, the groove can be changed into a square shape or a conical shape according to the actual use condition of the support, the cylindrical groove can be matched with the cylindrical boss to better transmit transverse load to the bottom plate 5, and the boss cannot be broken or damaged due to long-time load bearing due to even stress.
Wherein, the boss is interference fit with the medial surface of recess, and the mutual tight fit of boss and recess, when receiving transverse load, lower hem 2 can not produce the displacement with bottom plate 5, can be better pass to bottom plate 5 with transverse load on, also guaranteed simultaneously that interior toper sensor 4 can not receive transverse load's influence.
The above description is only for the embodiment of the present invention, and is not intended to limit the present invention. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.
Claims (10)
1. The utility model provides a vertical dynamometry ball-type support, its characterized in that, vertical dynamometry ball-type support includes: the device comprises an upper pendulum, a lower pendulum, an inner conical sensor, a strain gauge and a bottom plate;
the lower pendulum is positioned between the upper pendulum and the bottom plate, the lower surface of the upper pendulum is a convex spherical surface, the upper surface of the lower pendulum is a concave spherical surface, and the upper pendulum is in spherical contact with the lower pendulum;
the inner conical sensor is positioned between the lower pendulum and the bottom plate, the strain gauge is arranged on the side surface of the inner conical sensor, and the strain gauge can be connected with a data acquisition unit;
the lower surface of the lower hem is provided with a boss, the upper surface of the bottom plate is provided with a groove, the boss is in mutual contact with the inner side surface of the groove, and the boss is not in contact with the bottom of the groove.
2. The vertical dynamoball-type mount of claim 1 wherein said upper surface of said inner tapered sensor is a ramp, said ramp contacting a lower surface of said skirt.
3. A vertical dynamoball-type mount as recited in claim 2, wherein said ramp is provided with a friction reducing layer.
4. The vertical load cell ball mount of claim 1 wherein the lower surface of said inner conical sensor is an annular flat surface.
5. A vertical dynamoball-type mount, as recited in claim 4, wherein said annular plane is provided with a friction reducing layer.
6. A vertical dynamometric ball-type mount as claimed in any one of claims 1 to 5, wherein a friction reducing layer is disposed between said concave spherical surface and said convex spherical surface.
7. The vertical dynamometric ball-type mount of any one of claims 1-5, wherein an outer side of the inner cone sensor is provided with a groove, a side of the groove is a slope, and the strain gauge is located at a bottom of the groove.
8. The vertical dynamoball-type mount of any one of claims 1-5 wherein said boss is cylindrical.
9. The vertical dynamoball-type mount of any one of claims 1-5 wherein said recess is cylindrical.
10. The vertical dynamoball-type mount of any one of claims 1-5 wherein said boss is an interference fit with an inside surface of said recess.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922008059.6U CN211395333U (en) | 2019-11-20 | 2019-11-20 | Vertical dynamometry ball-type support |
| PCT/CN2019/124052 WO2021097960A1 (en) | 2019-11-20 | 2019-12-09 | Vertical force measurement spherical bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922008059.6U CN211395333U (en) | 2019-11-20 | 2019-11-20 | Vertical dynamometry ball-type support |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211395333U true CN211395333U (en) | 2020-09-01 |
Family
ID=72215948
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922008059.6U Active CN211395333U (en) | 2019-11-20 | 2019-11-20 | Vertical dynamometry ball-type support |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN211395333U (en) |
| WO (1) | WO2021097960A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4206648A4 (en) * | 2020-10-23 | 2024-03-27 | Sichuan Sunlight Inspection and Testing Co., Ltd. | Method for calibrating in-service bridge force-measurement bearing support on basis of accurate determination of coefficient of friction |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100700805B1 (en) * | 2004-11-15 | 2007-03-27 | 주식회사 브이테크 | Bridge bearing with buit-in optic fiber sensor for measurement |
| CN102095539B (en) * | 2010-11-23 | 2012-09-05 | 北京铁科首钢轨道技术有限公司 | Self-height-adjusting multi-directional intelligent force-measuring bracket |
| CN102032959B (en) * | 2010-11-23 | 2012-10-10 | 北京铁科首钢轨道技术有限公司 | Vertical intelligent force measurement support |
| WO2014164689A2 (en) * | 2013-03-12 | 2014-10-09 | The Timken Company | Load sensing bearing assembly |
| CN104294756B (en) * | 2014-10-28 | 2016-08-17 | 中铁二院工程集团有限责任公司 | A kind of multidirectional dynamometry ball shaped steel bearing |
| CN106120547B (en) * | 2016-08-24 | 2018-05-01 | 洛阳双瑞特种装备有限公司 | A kind of vertical force measurement type hyperboloid spheroidal bearer of shock absorption and insulation |
| CN106320166B (en) * | 2016-08-31 | 2018-08-10 | 李连秀 | A kind of cyclic annular rotation body support for surveying load |
| CN208039046U (en) * | 2018-04-08 | 2018-11-02 | 衡水铭科新材料科技有限公司 | A kind of intelligent multi-directional dynamometry drag-line bearing of bridge health |
| CN110106782B (en) * | 2019-04-26 | 2024-03-26 | 中船双瑞(洛阳)特种装备股份有限公司 | Vertical force-measuring bridge support and force-measuring method |
-
2019
- 2019-11-20 CN CN201922008059.6U patent/CN211395333U/en active Active
- 2019-12-09 WO PCT/CN2019/124052 patent/WO2021097960A1/en active Application Filing
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4206648A4 (en) * | 2020-10-23 | 2024-03-27 | Sichuan Sunlight Inspection and Testing Co., Ltd. | Method for calibrating in-service bridge force-measurement bearing support on basis of accurate determination of coefficient of friction |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2021097960A1 (en) | 2021-05-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100445721C (en) | Rail vehicle truck parameter measuring table | |
| CN208594474U (en) | A kind of intelligent spherical Dynamometric support | |
| CN211395333U (en) | Vertical dynamometry ball-type support | |
| CN102095539B (en) | Self-height-adjusting multi-directional intelligent force-measuring bracket | |
| CN104294756A (en) | Multi-direction force measuring ball type steel support | |
| CN102032959B (en) | Vertical intelligent force measurement support | |
| CN107841941A (en) | Distributed intelligence ball-type Dynamometric support | |
| CN201896288U (en) | Rotatable curved surface steel support seat with three-dimensional dynamometer device | |
| CN207714118U (en) | Distributed intelligence ball-type Dynamometric support | |
| CN201016867Y (en) | Railway vehicle steering frame test bench | |
| CN111664838A (en) | Gradient measuring device | |
| CN204185764U (en) | A kind of multidirectional dynamometry ball shaped steel bearing | |
| CN103017707B (en) | Device for accurately measuring displacement | |
| CN205175587U (en) | Load measuring device | |
| CN206223383U (en) | A kind of auto monitoring and measurement system of bridge pad deformation | |
| CN205978135U (en) | Preloading device of bearing assembly and bearing | |
| CN113030017B (en) | Equal-strength beam type fiber bragg grating metal surface corrosion monitoring device | |
| CN203116639U (en) | Weft insertion bearing measuring device | |
| CN211121474U (en) | Wireless water level distance meter for hydraulic engineering | |
| CN203310500U (en) | Novel flexible cup support structure with large-displacement for weighing large-scale object | |
| CN210122693U (en) | Force-measuring basin type rotating center support | |
| CN202853608U (en) | Angle measurer | |
| CN201738345U (en) | Non-contact measuring device of settlement in foundation base static loading test | |
| CN204202519U (en) | Raceway somascope outside a kind of tubular type right angle | |
| CN210166058U (en) | Intelligent force-measuring spherical support |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |