CN106198279B - Spring pin force measuring mechanism for rapidly detecting ground strength - Google Patents
Spring pin force measuring mechanism for rapidly detecting ground strength Download PDFInfo
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- CN106198279B CN106198279B CN201610467205.XA CN201610467205A CN106198279B CN 106198279 B CN106198279 B CN 106198279B CN 201610467205 A CN201610467205 A CN 201610467205A CN 106198279 B CN106198279 B CN 106198279B
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- force measuring
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/40—Investigating hardness or rebound hardness
- G01N3/52—Investigating hardness or rebound hardness by measuring extent of rebound of a striking body
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Abstract
The invention discloses a spring pin force measuring mechanism for rapidly detecting ground strength. Belongs to the technical field of pressure measurement. The detection device mainly solves the problems that the existing detection device has large overall dimension of the mechanism, high cost and long detection time. It is mainly characterized in that: the device comprises a spherical support, a pressure sensor, a pressure spring, a guide column plate, a supporting plate, a force measuring pin and a force measuring pin cover plate; the spherical support is fixed with the support plate; the pressure sensor is fixed in a groove at the bottom of the spherical support; the supporting plate opposite to the pressure sensor is provided with an installation through hole; the lower end of the force measuring pin is provided with a radial convex edge, and the lower end of the force measuring pin penetrates through the cover plate of the force measuring pin; the upper end of the pressure spring is sleeved on the guide column plate, and the lower end of the pressure spring is positioned in the force measuring pin cylindrical structure. The invention has the characteristics of improving the working efficiency of special vehicle operation, improving the working reliability, small size, simple structure and quick detection, and is mainly used for quickly detecting the ground pressure-bearing strength.
Description
Technical Field
The invention belongs to the technical field of pressure measurement, and particularly relates to a spring pin force measuring mechanism for quickly detecting ground strength by using a pushing force generated by an electric cylinder or a hydraulic cylinder.
Background
When some special vehicles work, a stable operation platform is needed, and whether the operation platform is stable or not is determined that the ground hardness of the four supporting mechanisms of the vehicle is insufficient. If the ground hardness is too soft, when the settlement value exceeds a specified value in the operation time, basic data of the operation platform is out of alignment or unstable, the operation precision and the operation result are influenced, at the moment, a long time is needed for adjusting the posture of the vehicle, the operation efficiency is influenced, and if the lifting vehicle inclines in the lifting process, the vehicle is damaged and people die.
The existing ground strength detection mechanism is divided into a hydraulic type mechanism and a wedge type mechanism, the two mechanisms are large in overall dimension, high in cost and long in detection time, unqualified ground strength detection mechanisms are detected, the ground strength detection mechanisms need to be repositioned, and time is delayed.
Disclosure of Invention
The invention aims to provide the force measuring device for rapidly detecting whether the ground strength meets the requirement or not by utilizing the spring pin, which can rapidly judge whether the ground strength meets the requirement or not within 3-5 seconds, and if so, the supporting mechanism continues to work; if not, the support mechanism stops working and replaces the station.
The technical solution of the invention is as follows: the utility model provides a spring catch dynamometer for short-term test ground strength which characterized in that: the device comprises a spherical support, a pressure sensor, a pressure spring, a guide column plate, a supporting plate, a force measuring pin and a force measuring pin cover plate; the spherical support is fixed with the support plate; the pressure sensor is fixed in a groove at the bottom of the spherical support, and a pressed point faces downwards; a mounting through hole is arranged on the supporting disk opposite to the pressure sensor, and a force measuring pin cover plate is arranged at the outer end of the mounting through hole; the force measuring pin is a cylindrical structure with a closed lower end, a radial convex edge is arranged at the upper end, and the cylindrical structure with the closed lower end penetrates through a force measuring pin cover plate; the upper end of the pressure spring is sleeved on the guide column plate, and the lower end of the pressure spring is positioned in the force measuring pin cylindrical structure; the upper end of the guide post plate is provided with a plane corresponding to the pressure bearing point of the pressure sensor.
In the technical scheme of the invention, a dust ring is arranged on the contact surface of the force measuring pin cover plate and the force measuring pin, so that dust is prevented from entering the force measuring pin.
The contact surface between the spherical support and the support disc is a spherical surface in the technical scheme of the invention.
In the technical scheme of the invention, the force measuring pin cover plate is fixed with the supporting plate through a screw, so that the pressure spring generates an initial pre-pressure.
The invention adopts the spring pin force measuring mechanism composed of a spherical support, a pressure sensor, a pressure spring, a guide column plate, a support plate, a force measuring pin and a force measuring pin cover plate, and is arranged at the front end of a device for detecting the ground strength, which is composed of an electric cylinder or a hydraulic cylinder, so that the contact end plane of the guide column plate is tightly attached to the acting point of the sensor under the action of the spring, the positive pressure borne by the force measuring pin is transmitted to the pressure sensor through the pressure spring, the control part obtains the ground strength value according to the feedback force and the diameter of the force measuring pin, and the whole process only needs a few seconds. The invention has the characteristics of capability of improving the working efficiency of special vehicle operation, capability of improving the working reliability, small size, simple structure and quick detection. The invention is mainly used for rapidly detecting the ground pressure-bearing strength.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a bottom view of fig. 1.
In the figure: 1-spherical support, 2-pressure sensor, 3-guide column plate, 4-support plate, 5-screw, 6-pressure spring, 7-force measuring pin, 8-dust ring, 9-force measuring pin cover plate.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1 and 2. The invention discloses a spring pin force measuring mechanism for rapidly detecting ground strength, which comprises a spherical support 1, a pressure sensor 2, a pressure spring 6, a guide pillar plate 3, a supporting plate 4, a force measuring pin 7 and a force measuring pin cover plate 9. The appearance of spherical support 1 is spherical, and 4 upper portions of supporting disk are equipped with spherical recess, and the contact surface between spherical support 1 and the supporting disk 4 is spherical face, and spherical support 1 passes through the fix with screw with supporting disk 4 and is in the same place. The pressure sensor 2 is fixed in a groove at the bottom of the spherical support 1, and the pressure point is downward. A through mounting through hole is arranged on the supporting disc 4 opposite to the pressure sensor 2, and a force measuring pin cover plate 9 is fixed on the supporting disc 4 at the outer end of the mounting through hole through a screw 5, so that the pressure spring 6 generates an initial pre-pressure. The pressure spring 6 is vertically arranged in the mounting through hole, the upper end of the pressure spring is sleeved on the guide column plate 3, the pressure spring 6 plays a role in guiding when compressed, and the lower end of the pressure spring is positioned in the force measuring pin 7. The upper end of the guide pillar plate is provided with a plane corresponding to the pressed point so as to be in better contact with the acting point of the pressure sensor 2. The force measuring pin 7 is of a cylindrical structure with the lower end closed, the force measuring pin 7 penetrates through the force measuring pin cover plate 9, and the upper end of the force measuring pin 7 is provided with a radial convex edge for limiting the extending length of the force measuring pin 7. A dust ring 8 is arranged on the contact surface of the force measuring pin cover plate 9 and the force measuring pin 7, and dust is prevented from entering the force measuring pin.
The working principle is as follows:
the ball head support 1 (the electric cylinder or the hydraulic cylinder) moves downwards, the bottom surface of the force measuring pin 7 firstly contacts the ground, the ground generates a reaction force on the force measuring pin 7, if the reaction force is smaller than the initial pressure of the pressure spring 6, the extension length of the force measuring pin 7 is unchanged, and the ball head support 1 (the electric cylinder or the hydraulic cylinder) continues to move downwards (at the moment, the strength of the ground can be judged to be not in accordance with the requirement); if the reaction force is greater than the initial pressure of the pressure spring 6, the pressure spring 6 is compressed, and the force measuring pin 7 moves upwards; as the ball socket 1 moves down continuously, the pressure spring 6 is compressed until the force pin retracts completely, and the bottom surface of the force pin 7 is flush with the force pin cover plate 9.
In the process, the control system calculates the ground strength value according to the force change, the compression amount of the pressure spring 6 and the area of the force measuring pin.
Claims (4)
1. The utility model provides a spring catch dynamometer for short-term test ground intensity which characterized in that: comprises a spherical support (1), a pressure sensor (2), a pressure spring (6), a guide post plate (3), a support plate (4), a force measuring pin (7) and a force measuring pin cover plate (9); the spherical support (1) is fixed with the support plate (4); the pressure sensor (2) is fixed in a groove at the bottom of the spherical support (1), and a pressed point faces downwards; a mounting through hole is arranged on the supporting disk (4) which is opposite to the pressure sensor (2), and a force measuring pin cover plate (9) is fixed on the supporting disk (4) at the outer end of the mounting through hole, so that the pressure spring (6) generates an initial pre-pressure; the force measuring pin (7) is of a cylindrical structure with a closed lower end, a radial convex edge is arranged at the upper end, and the cylindrical structure with the closed lower end of the force measuring pin (7) penetrates through a force measuring pin cover plate (9); the upper end of the pressure spring (6) is sleeved on the guide column plate (3), and the lower end of the pressure spring is positioned in the force measuring pin (7); the upper end of the guide post plate (3) is provided with a plane corresponding to the pressed point.
2. The spring pin force measuring mechanism for rapidly detecting the ground strength as claimed in claim 1, wherein: and a dustproof ring (8) is arranged on the contact surface of the force measuring pin cover plate (9) and the force measuring pin (7).
3. A spring pin force measuring mechanism for rapidly detecting ground strength as claimed in claim 1 or 2, wherein: the contact surface between the spherical support (1) and the support disc (4) is a spherical surface.
4. The spring-loaded pin force-measuring mechanism for rapidly detecting the ground strength as claimed in claim 1 or 2, wherein: the force measuring pin cover plate (9) is fixed with the support plate (4) through a screw (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610467205.XA CN106198279B (en) | 2016-06-24 | 2016-06-24 | Spring pin force measuring mechanism for rapidly detecting ground strength |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610467205.XA CN106198279B (en) | 2016-06-24 | 2016-06-24 | Spring pin force measuring mechanism for rapidly detecting ground strength |
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| Publication Number | Publication Date |
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| CN106198279A CN106198279A (en) | 2016-12-07 |
| CN106198279B true CN106198279B (en) | 2023-03-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610467205.XA Active CN106198279B (en) | 2016-06-24 | 2016-06-24 | Spring pin force measuring mechanism for rapidly detecting ground strength |
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| CN (1) | CN106198279B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109520848B (en) * | 2018-10-24 | 2021-06-11 | 湖北泰和电气有限公司 | Portable ground strength detection equipment |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB8407786D0 (en) * | 1984-03-26 | 1984-05-02 | Pilecon Eng Sdn Bhd | Testing strength of ground |
| SU1101697A1 (en) * | 1983-04-06 | 1984-07-07 | Всесоюзный Ордена Трудового Красного Знамени Научно-Исследовательский Институт Гидротехники Им.Б.Е.Веденеева | Device for testing ground |
| CN85105332A (en) * | 1985-07-10 | 1986-10-29 | 武汉工学院 | Multipurpose test instrument for soil strength |
| JP2006090874A (en) * | 2004-09-24 | 2006-04-06 | Yokohama National Univ | Rapid load testing machine of ground anchor |
| CN1995545A (en) * | 2006-01-06 | 2007-07-11 | 湖北泰和电气有限公司 | Ground intensity detector |
| CN203720020U (en) * | 2014-01-17 | 2014-07-16 | 浙江建设职业技术学院 | Testing equipment for strength of roadbeds and road surfaces |
| CN204373990U (en) * | 2015-02-04 | 2015-06-03 | 中国葛洲坝集团国际工程有限公司 | Sprayed concrete early strength rapid determination device |
| CN105136564A (en) * | 2015-08-24 | 2015-12-09 | 安徽合力股份有限公司 | Forklift steering frame strength testing tool |
| CN205749175U (en) * | 2016-06-24 | 2016-11-30 | 湖北泰和电气有限公司 | A kind of spring catch force measuring machine for quickly detecting ground intensity |
-
2016
- 2016-06-24 CN CN201610467205.XA patent/CN106198279B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1101697A1 (en) * | 1983-04-06 | 1984-07-07 | Всесоюзный Ордена Трудового Красного Знамени Научно-Исследовательский Институт Гидротехники Им.Б.Е.Веденеева | Device for testing ground |
| GB8407786D0 (en) * | 1984-03-26 | 1984-05-02 | Pilecon Eng Sdn Bhd | Testing strength of ground |
| CN85105332A (en) * | 1985-07-10 | 1986-10-29 | 武汉工学院 | Multipurpose test instrument for soil strength |
| JP2006090874A (en) * | 2004-09-24 | 2006-04-06 | Yokohama National Univ | Rapid load testing machine of ground anchor |
| CN1995545A (en) * | 2006-01-06 | 2007-07-11 | 湖北泰和电气有限公司 | Ground intensity detector |
| CN203720020U (en) * | 2014-01-17 | 2014-07-16 | 浙江建设职业技术学院 | Testing equipment for strength of roadbeds and road surfaces |
| CN204373990U (en) * | 2015-02-04 | 2015-06-03 | 中国葛洲坝集团国际工程有限公司 | Sprayed concrete early strength rapid determination device |
| CN105136564A (en) * | 2015-08-24 | 2015-12-09 | 安徽合力股份有限公司 | Forklift steering frame strength testing tool |
| CN205749175U (en) * | 2016-06-24 | 2016-11-30 | 湖北泰和电气有限公司 | A kind of spring catch force measuring machine for quickly detecting ground intensity |
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| CN106198279A (en) | 2016-12-07 |
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