CN102435291A - Hydraulic plunger auto-compensation spacing device - Google Patents
Hydraulic plunger auto-compensation spacing device Download PDFInfo
- Publication number
- CN102435291A CN102435291A CN2011102679070A CN201110267907A CN102435291A CN 102435291 A CN102435291 A CN 102435291A CN 2011102679070 A CN2011102679070 A CN 2011102679070A CN 201110267907 A CN201110267907 A CN 201110267907A CN 102435291 A CN102435291 A CN 102435291A
- Authority
- CN
- China
- Prior art keywords
- hydraulic
- spacing
- hydraulic plunger
- hydraulic cylinder
- stop means
- 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.)
- Pending
Links
Images
Landscapes
- Fluid-Damping Devices (AREA)
Abstract
The invention discloses a hydraulic plunger auto-compensation spacing device for spacing industrial weighing machinery. The spacing device is formed by arranging a hydraulic regulation device between a foundation and a weighing apparatus baffle, wherein the hydraulic regulation device consists of a hydraulic cylinder fixed on the foundation, hydraulic oil sealed in the hydraulic cylinder, and a hydraulic plunger with one end positioned in the hydraulic cylinder; the other end of the hydraulic plunger contacts with the automobile weighing baffle in clearance fit. By utilizing the hydraulic mechanism, impact force received by a weighing platform can be well absorbed, noise resulting from collision is reduced, friction is well reduced, the spacing device is returned to an initial position, and the effect to accuracy is reduced. The connection between the hydraulic cylinder and the foundation can well resist the impact force of the weighing apparatus; and the spacing device provided by the invention has the advantages of simple structure, convenience in use and durable in use, and the problem that the spacing is needed to be manually regulated frequently is fundamentally solved, thereby ensuring the normal use of the equipment.
Description
Technical field
The present invention relates to the stop means of various industrial weighing machineries, the hydraulic plunger formula that is particularly suitable for the truck scale that highway load transportation vehicle weighing uses compensates stop means automatically.
Background technology
At present; Stop means structure above the weighing apparatus has a variety of both at home and abroad; But the stop means that on truck scale, uses mainly is following structure: spacing adjustment bolt is installed on truck scale two end-stopping plates, is drawn the gap on slope through adjustment bolt and basis and come the motion (Fig. 1) of restricting vehicle weighing apparatus at longitudinal direction.When truck weighed on the whole, automobile emergency brake can produce huge impact power and gravity grinding pressure, through the power transmission, is transmitted to power on the stop means.Because stop means often will bear huge impact power, produce or the flexural deformation of truck scale baffle plate thereby cause adjusting bolt, thereby cause stop means to lose efficacy.When spacing inefficacy, equipment precision is just inaccurate, needs to change adjustment bolt or baffle plate and guarantees spacingly, keep in repair pretty troublesomely, can not guarantee long-term use after the maintenance simultaneously, repeatedly maintain and replace.Also having spacing is to adopt rod-pulling type, but owing to expand with heat and contract with cold, scale body variable quantity is too big, causes pull bar stressed locked, and the scale body can not move automatically, and spacing inefficacy needs the people regularly to adjust pull bar.
Summary of the invention
For solve stop means that present truck scale baffle plate adopts be easy to generate bolt looseness, damage and baffle plate flexural deformation or spacing malfunctioning between topic; The purpose of this invention is to provide a kind of simple in structure; Easy to use; Laborsaving, and spacing hydraulic plunger formula accurate, long service life compensates stop means automatically.
Technical scheme of the present invention is to adopt following manner to realize:
A kind of spacing hydraulic plunger formula of industrial weighing machinery that is used for compensates stop means automatically; It is between ground and weighing apparatus baffle plate, to adorn a hydraulic adjustment device; Wherein, Hydraulic adjustment device by be fixed on hydraulic cylinder on the ground, be sealed in the hydraulic oil in the hydraulic cylinder, the hydraulic plunger that an end is positioned at hydraulic cylinder is formed, the hydraulic plunger other end keeps clearance fit to contact with the truck scale baffle plate.
Described hydraulic plunger head end is a round end.
For reducing the friction force between hydraulic column chock plug and the truck scale baffle plate, be provided with a steel ball between described hydraulic plunger and the weighing apparatus baffle plate.
Described hydraulic plunger head end is a recess, with the corresponding weighing apparatus baffle plate of recess be provided with one with another recess of recess symmetry, steel ball leans on two recesses to be supported between hydraulic column chock plug and the weighing apparatus baffle plate
Be provided with O-ring seal between described hydraulic cylinder and the hydraulic plunger.
Described hydraulic cylinder is provided with an oil hole.
The described hydraulic cylinder part that is connected through the hinge is connected on the ground.
Described hydraulic cylinder directly is fixed on the ground through web member.
Principle of work of the present invention: the concrete operating position of the present truck scale of following basis explains how the present invention realizes.Because truck scale body mainly is to have the steel of Q235 material to be welded into; The thermal expansivity of Q235 is 0.000012/ ℃; Computing formula is that
hydraulic oil is selected antiwear hydraulic oil YN-N68 for use; Its thermal expansivity is 0.00065/ ℃; It is 5000mm that supposition that computing formula is
has 30 tons of truck scale length at present; The serviceability temperature environment is :-20 ℃--+50 ℃; Hydraulic column chock plug diameter is φ 30mm, and the hydraulic cylinder diameter is 100mm.Calculate according to formula: the scale body is in 70 ℃ of variation ranges; Scale body recruitment is 4.2mm; Every limit has increased 2.1mm, needs hydraulic plunger to stretch out 2.1 millimeters variations that guarantee between the two simultaneously so, and calculating needs hydraulic oil volume recruitment according to formula is 1483.65mm
3,, calculate the hydraulic oil volume needs 2282538.5mm in the hydraulic cylinder according to formula
3, because the hydraulic cylinder diameter is very little, the variable quantity of cylinder body is very little, can ignore, like this as long as hydraulic cylinder length is that 290.8mm just can guarantee that hydraulic plunger stretches out 2.1mm.The gap that so just can reach automatically between truck scale baffle plate and the hydraulic column chock plug remains unchanged, and guarantees spacing normal use, plays the spacing effect of automatic compensation.As long as recognize suitable data, through calculating, just can accomplish that steel ball directly contacts with baffle plate, accomplish not influence the measuring accuracy of scale body.
Good effect of the present invention is: science simple in structure, use laborsavingly, and thoroughly changes needs the people constantly to adjust spacing classic method; Adopt hydraulic mechanism can well absorb the impulsive force that the scale body receives simultaneously, well reduce the noise that collision produces, adopt the steel ball contact; The power of can well reducing friction is returned to original position, reduces the influence to precision; Long service life of the present invention, use cost is low.
Description of drawings
Fig. 1 is the structural representation of the present bolt stop means that adopts.
Fig. 2 is a bolt deformed configurations synoptic diagram among Fig. 1.
Fig. 3 is a truck scale baffle plate deformed configurations synoptic diagram among Fig. 1.
Fig. 4 is a structural representation of the present invention.
Fig. 5 is for establishing the structural representation of a steel ball between hydraulic column chock plug among Fig. 4 and the weighing apparatus baffle plate.
Fig. 6 directly is fixed on the structural representation on the ground for the hydraulic cylinder of Fig. 5.
Embodiment:
The knot accompanying drawing is described further the present invention below:
Can be found out by Fig. 4: the present invention adorns a hydraulic adjustment device between ground and weighing apparatus baffle plate 1; Wherein, Hydraulic adjustment device by hinge be connected hydraulic cylinder 6 on the ground, be sealed in the hydraulic oil 4 in the hydraulic cylinder, the hydraulic plunger that an end is positioned at hydraulic cylinder 6 is formed, the hydraulic plunger other end keeps clearance fit to contact with truck scale baffle plate 1.
It can also be seen that by Fig. 4: hydraulic column chock plug 9 is round end.
It can also be seen that by Fig. 5: be provided with steel ball 5 between hydraulic plunger 3 and the weighing apparatus baffle plate 1; The hydraulic plunger head end is a recess; With the corresponding weighing apparatus baffle plate 1 of recess be provided with one with another recess of recess symmetry; Steel ball leans on two recesses to be supported on and avoids directly leaning the hydraulic column chock plug between hydraulic column chock plug and the weighing apparatus baffle plate 1, reduces the friction force between hydraulic column chock plug and the truck scale baffle plate 1.
It can also be seen that by Fig. 4, Fig. 5, Fig. 6, be provided with O-ring seal 7 between hydraulic plunger and the fluid cylinder to guarantee sealing property.It can also be seen that by Fig. 6: hydraulic cylinder 6 directly is fixed on the ground through web member 10.
When the present invention installs; At first hydraulic cylinder 6 firm being connected with ground or directly being fixed on the ground through web member 10 of part 8 that will be connected through the hinge in advance lets truck scale baffle plate 1 and hydraulic column chock plug 9 or steel ball 2 keep in touch then, adds suitable hydraulic oil 4 through oil hole 5; When truck scale receives impulsive force; Conduct power to hydraulic oil 4 through baffle plate 1, hydraulic column chock plug 9 or steel ball 2, owing to do not have air in the hydraulic cylinder 6, hydraulic oil 4 force of compression are very little; When impulsive force stops, revert to original position to truck scale through hydraulic column chock plug or steel ball 2, truck scale baffle plate 1.
Claims (8)
1. one kind is used for the spacing hydraulic plunger formula of industrial weighing machinery and compensates stop means automatically; It is between ground and weighing apparatus baffle plate (1), to adorn a hydraulic adjustment device; It is characterized in that: hydraulic adjustment device by be fixed on hydraulic cylinder (6) on the ground, be sealed in the hydraulic oil (4) in the hydraulic cylinder, the hydraulic plunger (3) that an end is positioned at hydraulic cylinder (6) is formed, hydraulic plunger (3) other end contacts with truck scale baffle plate (1) maintenance clearance fit.
2. the spacing hydraulic plunger formula of industrial weighing machinery that is used for according to claim 1 compensates stop means automatically, and it is characterized in that: described hydraulic plunger head end (9) is a round end.
3. the spacing hydraulic plunger formula of industrial weighing machinery that is used for according to claim 1 compensates stop means automatically, it is characterized in that: be provided with a steel ball (2) between described hydraulic plunger (3) and the weighing apparatus baffle plate (1).
4. the spacing hydraulic plunger formula of industrial weighing machinery that is used for according to claim 3 compensates stop means automatically; It is characterized in that: described hydraulic plunger head end is a recess; With the corresponding weighing apparatus baffle plate of recess (1) be provided with one with another recess of recess symmetry, steel ball (2) leans on two recesses to be supported between hydraulic column chock plug and the weighing apparatus baffle plate (1)
5. compensate stop means automatically according to claim 2 or the 4 described spacing hydraulic plunger formulas of industrial weighing machinery that are used for, it is characterized in that: be provided with O-ring seal (7) between described hydraulic cylinder (6) and the hydraulic plunger (3).
6. the spacing hydraulic plunger formula of industrial weighing machinery that is used for according to claim 5 compensates stop means automatically, and it is characterized in that: described hydraulic cylinder (6) is provided with an oil hole (5).
7. the spacing hydraulic plunger formula of industrial weighing machinery that is used for according to claim 6 compensates stop means automatically, it is characterized in that: described hydraulic cylinder (6) part (8) that is connected through the hinge is connected on the ground.
8. the spacing hydraulic plunger formula of industrial weighing machinery that is used for according to claim 6 compensates stop means automatically, and it is characterized in that: described hydraulic cylinder (6) directly is fixed on the ground through web member (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102679070A CN102435291A (en) | 2011-09-09 | 2011-09-09 | Hydraulic plunger auto-compensation spacing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102679070A CN102435291A (en) | 2011-09-09 | 2011-09-09 | Hydraulic plunger auto-compensation spacing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102435291A true CN102435291A (en) | 2012-05-02 |
Family
ID=45983479
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011102679070A Pending CN102435291A (en) | 2011-09-09 | 2011-09-09 | Hydraulic plunger auto-compensation spacing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102435291A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106768230A (en) * | 2017-01-20 | 2017-05-31 | 宁波大榭招商国际码头有限公司 | A kind of scale limiting adjustment mechanism |
| CN113514138A (en) * | 2021-06-11 | 2021-10-19 | 宁波柯力传感科技股份有限公司 | Truck scale |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3921737A (en) * | 1974-02-27 | 1975-11-25 | Aunt Nellie S Foods Inc | Weighing apparatus |
| CN85200736U (en) * | 1985-04-12 | 1986-07-09 | 邯郸钢铁总厂 | Limit unit for separating railroad balance |
| CN201125902Y (en) * | 2007-11-26 | 2008-10-01 | 常州市第一橡塑设备有限公司 | Oil cylinder buffering device |
| CN101655389A (en) * | 2009-08-26 | 2010-02-24 | 武汉科技大学 | Hydraulic stopper used for weighing apparatus |
| CN201697710U (en) * | 2010-06-21 | 2011-01-05 | 江西众加利高科技有限公司 | Ball-type limiting device of weighing table of weighter |
| CN202255611U (en) * | 2011-09-09 | 2012-05-30 | 郑州恒科实业有限公司 | Hydraulic plunger-type automatically-compensating limiting device |
-
2011
- 2011-09-09 CN CN2011102679070A patent/CN102435291A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3921737A (en) * | 1974-02-27 | 1975-11-25 | Aunt Nellie S Foods Inc | Weighing apparatus |
| CN85200736U (en) * | 1985-04-12 | 1986-07-09 | 邯郸钢铁总厂 | Limit unit for separating railroad balance |
| CN201125902Y (en) * | 2007-11-26 | 2008-10-01 | 常州市第一橡塑设备有限公司 | Oil cylinder buffering device |
| CN101655389A (en) * | 2009-08-26 | 2010-02-24 | 武汉科技大学 | Hydraulic stopper used for weighing apparatus |
| CN201697710U (en) * | 2010-06-21 | 2011-01-05 | 江西众加利高科技有限公司 | Ball-type limiting device of weighing table of weighter |
| CN202255611U (en) * | 2011-09-09 | 2012-05-30 | 郑州恒科实业有限公司 | Hydraulic plunger-type automatically-compensating limiting device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106768230A (en) * | 2017-01-20 | 2017-05-31 | 宁波大榭招商国际码头有限公司 | A kind of scale limiting adjustment mechanism |
| CN113514138A (en) * | 2021-06-11 | 2021-10-19 | 宁波柯力传感科技股份有限公司 | Truck scale |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103487334B (en) | Three-freedom degree dynamic compression and shear testing machine | |
| CN203452813U (en) | Detector for pretightening force of anchor rod | |
| CN103307246B (en) | Stroke-adjustable push rod mechanism | |
| CN101070693A (en) | Built-in air energy-eliminating shock-absorbing damper | |
| CN208830511U (en) | Power amplifying type active tuned mass damper | |
| CN102435291A (en) | Hydraulic plunger auto-compensation spacing device | |
| CN104015753A (en) | Double-clamping flat-pushing non-gravity-type electro-hydraulic vehicle retarder | |
| CN202255611U (en) | Hydraulic plunger-type automatically-compensating limiting device | |
| CN202216756U (en) | Temperature compensation type limit device | |
| CN204784482U (en) | Drive mechanism with adjustable interval | |
| CN103471504A (en) | Method and device for measuring assembly size of internal hole of hydraulic torque converter | |
| CN204037588U (en) | A kind of double fastener horizontal sliding non-gravity formula electrohydraulic vehicle retarder | |
| CN101818768A (en) | Automobile floating shoe-axis mode balancing force amplifying brake | |
| CN202290739U (en) | Hydraulic balancing device | |
| CN202433139U (en) | Fully automatic extrusion force testing machine for parts | |
| CN204148822U (en) | A kind of fluid bearing pressing machine | |
| CN105034443B (en) | Pressure maintaining and pressure unloading stabilization ultralow speed oil press | |
| CN204262235U (en) | Crimping combination bottoming machine | |
| CN203548543U (en) | Adjustable crankshaft | |
| CN208107044U (en) | A kind of external adjustable linear oil damper of high speed motor car | |
| CN207050994U (en) | A kind of guider of flat board brake test bench | |
| CN101722790A (en) | Dead weight wheel | |
| CN204982801U (en) | Connecting structure of flat fixed wheel steel gate and gate wall track | |
| CN201175738Y (en) | Metal plate-belt straightening machine holding-down device | |
| CN203198978U (en) | Multi-cylinder driving synchronizing device for parking anti-slip device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120502 |