CN2755184Y - Supporting hinge pin axle weighing device of lifting oil cylinder for loader - Google Patents
Supporting hinge pin axle weighing device of lifting oil cylinder for loader Download PDFInfo
- Publication number
- CN2755184Y CN2755184Y CN 200420120648 CN200420120648U CN2755184Y CN 2755184 Y CN2755184 Y CN 2755184Y CN 200420120648 CN200420120648 CN 200420120648 CN 200420120648 U CN200420120648 U CN 200420120648U CN 2755184 Y CN2755184 Y CN 2755184Y
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- CN
- China
- Prior art keywords
- weighing device
- loader
- pin axle
- supporting
- oil cylinder
- 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.)
- Expired - Fee Related
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Abstract
A hydraulic sensor adopted by the existing loader weighing device or a pressure sensor arranged at the position of a link point N of a supporting skip bucket totally exist the technical malady of low measurement precision. For solving the technical problem, a supporting and hinging pin axle weighing device of a lifting oil cylinder of a loader provided by the utility model is provided with the pressure sensor of a supporting hinge pin axle weighing device in a supporting pin axle of a link point between a lifting oil cylinder and a big arm, pressure electric signals are transformed and transmitted by stress sheets at both ends of the weighing device, and the weighing device is fixed on the big arm by a fixed flange. Because of the execution of the technical scheme, the induction error is decreased, the interference of measurement caused by erratic factors in operation is eliminated, and the measurement precision is improved.
Description
Technical field
The utility model relates to the weighing checkout gear that is arranged at lift arm of loader.
Background technology
Weight sensing detection device in the existing loader meausring apparatus has adopted the fluid pressure type sensor that is installed on big arm lift cylinder place substantially, because the oil pressure value that sensor extracted is subjected to the influence of oil cylinder oil flow speed largely, thereby the oil pressure value instability causes the low of its sensing measurement precision, moreover, also high to the requirement of loader operation stationarity, so its certainty of measurement also only can reach 2%.Replace the hydraulic sensing mode to obtain stable measured value, technician are arranged at pressure sensor and support tipping bucket pin joint N position, and its change value of sending is sent to analysis platform.Near excessively owing to the tipping bucket pin joint, far away with the analysis platform distance apart from operation site, transfer cable wire is longer, the hurried variation that operation collides, the existence of line resistance, all greatly influenced certainty of measurement, cable is severed easily in the operation of shovel dress, what is more important: this hinged strong point is the most frequent node of shovel dress operation, and shaft size is bigger, and it is also big to wear and tear.In sum, existing loader promotes the meausring apparatus technology rational technic relization scheme yet.
The utility model content
Goal of the invention of the present utility model is to provide a kind of can realize that loader lift cylinder stable, high-acruracy survey supports the hinging pin shaft meausring apparatus.The major technique content of the technical program is: the pressure sensor that this loader lift cylinder supports the hinging pin shaft meausring apparatus is arranged in the support bearing pin of pin joint between lift cylinder support piston and big arm, it supports bearing pin is to experience the elasticity axis body of the diameter of axle to pressure, the two ends of elasticity axis body become the stress section of the pressurization pressure signal of telecommunication for induction, seal the axle that is assembled into one by the axle package again, at least one end of this support bearing pin is provided with the flange of fixedlying connected with big arm.
Loader lift cylinder provided by the utility model supports the hinging pin shaft meausring apparatus, selection has been adopted and has been responded to stably that the pressure axis sensor replaces the fluid pressure type sensor, and constitute as the back shaft sensing element design of pin joint between lift piston and big arm, this pin joint is sayed from force analysis, its stress point is concentrated, operating frequency is far below tipping bucket pin joint operating frequency, shaft size is little, it is little to wear and tear, be convenient to transform and install, based on above reason, the enforcement of the technical program has reduced influence error, rejected the interference of the destabilizing factor in the operation to measuring, make its certainty of measurement reach 0.05%, promptly reached three grades of scale indexs of country.
Describe technology contents of the present utility model in detail below in conjunction with the accompanying drawing structure.
Description of drawings
Fig. 1 is the structural representation of loader hoisting mechanism
Fig. 2 is the sectional structure chart that is arranged at this bearing pin meausring apparatus of big arm support node
Fig. 3 is the A-A sectional structure chart of Fig. 2 bearing pin meausring apparatus.
The specific embodiment
Loader lift cylinder of the present utility model supports the hinging pin shaft meausring apparatus, its pressure sensor is arranged in the support bearing pin of lift cylinder support piston 1 and big 8 pin joint M of arm, it supports bearing pin and includes to experiencing the elasticity axis body 4 of the diameter of axle to pressure, the stress section 2 of the signal of telecommunication is sent in the change that the two ends of elasticity axis body 4 change for induction elasticity axis body 4 pressure, 5, and respectively by end cover 20,50 send stress section 2 with change, 5 seal, simultaneously with the middle elasticity axis body 4 support bearing pin that is assembled into one, this support bearing pin is fixed on the big arm 8 by the mounting flange 6 of an end setting, is rotatably assorted with the axle sleeve 3 that is fixed in lift piston 1 formation one by steady pin 7.This is concrete implements structure in order to realize supporting the lubricated of bearing pin and 3 on axle sleeve, as shown in Figure 3, communicates with the oilhole of flange 6 to be provided with and implements and the lubricant passage way 9 that lubricates of 3 on axle sleeve.
Claims (2)
1, a kind of loader lift cylinder supports the hinging pin shaft meausring apparatus, the pressure sensor that it is characterized in that is arranged in the support bearing pin of pin joint (M) between lift cylinder support piston (1) and big arm (8), it supports bearing pin is to experience the elasticity axis body (4) of the diameter of axle to pressure, the two ends of elasticity axis body become the stress section (2,5) of the pressurization pressure signal of telecommunication for induction, sealed and the elasticity axis body bearing pin that is assembled into one by end cover respectively, at least one end of this supports bearing pin is provided with the flange (6) of fixedlying connected with arm greatly.
2, support hinging pin shaft meausring apparatus according to claim 1, it is characterized in that in elasticity axis body (4) communicating with the oilhole of flange (6) is provided with the lubricant passage way (9) that feeds the shaft sleeve lubricating gap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420120648 CN2755184Y (en) | 2004-12-20 | 2004-12-20 | Supporting hinge pin axle weighing device of lifting oil cylinder for loader |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420120648 CN2755184Y (en) | 2004-12-20 | 2004-12-20 | Supporting hinge pin axle weighing device of lifting oil cylinder for loader |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2755184Y true CN2755184Y (en) | 2006-02-01 |
Family
ID=35928813
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420120648 Expired - Fee Related CN2755184Y (en) | 2004-12-20 | 2004-12-20 | Supporting hinge pin axle weighing device of lifting oil cylinder for loader |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2755184Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108779624A (en) * | 2016-06-21 | 2018-11-09 | 株式会社小松制作所 | The control method of working truck, job management system and working truck |
-
2004
- 2004-12-20 CN CN 200420120648 patent/CN2755184Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108779624A (en) * | 2016-06-21 | 2018-11-09 | 株式会社小松制作所 | The control method of working truck, job management system and working truck |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |