CN204200755U - A kind of linear cylinder - Google Patents
A kind of linear cylinder Download PDFInfo
- Publication number
- CN204200755U CN204200755U CN201420642930.2U CN201420642930U CN204200755U CN 204200755 U CN204200755 U CN 204200755U CN 201420642930 U CN201420642930 U CN 201420642930U CN 204200755 U CN204200755 U CN 204200755U
- Authority
- CN
- China
- Prior art keywords
- cylinder
- spring
- linear
- cylinder block
- pull bar
- 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
The utility model relates to a kind of linear cylinder, belongs to drilling engineering class machinery instrument technical field.This linear cylinder is made up of cylinder block, linear bellows, spring, spring pull bar and recording pen driving head, cylinder block has suction port, seal plug is installed in one end of cylinder block, the other end of cylinder block is connected to bearing plate by linear bellows, bearing plate has central through bore, central through bore internal fixtion is provided with recording pen driving head, is provided with spring pull bar between recording pen driving head and seal plug, and spring pull bar is set with spring.The utility model adopts linear bellows and the box-like structure of cluster spring, resistance is caused to compare with energy loss with cylinder block during piston type pneumatic cylinder working with piston friction, the utility model can reflect the linear relationship between gas pressure and cylinder stroke well under the acting in conjunction of gas pressure, linear bellows and spring, in stroke action, do not produce pressure loss.
Description
Technical field
The utility model relates to a kind of linear cylinder, belongs to drilling engineering class machinery instrument technical field.
Background technique
Drilling machinery instrument, as weight indicator, standpipe pressure table etc., is the indicator of drilling equipment working state, the operating mode of current device can be quantized to show to be supplied to workmen.Workmen is while instant viewing drilling parameter, also require that various drilling parameter data can save by instrument in real time, this is for checking historical record in the future, analyzes work progress, investigation accident cause, dividing first and second side's accident responsibilities has directly perceived and important effect.Drilling machinery instrument requires the recording mode of drilling parameter: the electrical signal of measured parameter is converted to corresponding gas pressure value by electropneumatic transducer, and gas pressure drives cylinder moving, converts electrical signals to cylinder moving stroke.Cylinder stroke is directly proportional to gas pressure linear relationship, and when gas pressure changes, cylinder stroke is corresponding to change, and then reaches an activation record action and to go forward side by side effect of line item.201220163392X discloses a kind of cylinder, this cylinder is made up of cylinder barrel, protecgulum, bonnet, piston rod and piston, piston rod and piston are all loaded in cylinder barrel, the two ends of cylinder barrel are fixed with protecgulum and bonnet, and piston rod one end is positioned at outside cylinder barrel, and the other end passes protecgulum center hole and is fixed with piston, protecgulum is fixedly equipped with enclosing cover away from piston one end, protecgulum has the first suction port, bonnet has the second suction port, cylinder also comprises at least one retarder for reducing piston movement speed.Adopt the cylinder of this structure, piston obtains effective buffering, alleviates the collision to front and rear covers.201220176783.5 disclose a kind of cylinder, this cylinder is by cylinder barrel, protecgulum, bonnet, bolt, pull bar, piston, bearing, wear ring and adjustment screw, protecgulum and bonnet close-fitting are arranged on the left and right two ends of steel cylinder, the exterior edge face of protecgulum and bonnet is provided with protective cover plate, piston is arranged in steel cylinder, piston rod links with piston through protecgulum, the right-hand member of piston rod forms fixed-link by bolt and piston, wear ring is arranged on the outer wall of piston and the joint of cylinder barrel, adjustment screw and the symmetrical side being longitudinally arranged on bonnet of pull bar.Have piston in above two kinds of air cylinder structures, the gas pressure loss that the surface friction drag between cylinder body and piston causes makes the change of gas pressure can not be reflected in the change of piston stroke.Therefore, the cylinder of this structure cannot meet the on-the-spot needs to parameter real time record of drilling engineering.
Summary of the invention
The purpose of this utility model is to overcome the stroke of existing piston-cylinder and gas pressure without linear relationship, is difficult to meet the on-the-spot defect to parameter real time record needs of drilling engineering, and provides a kind of linearly cylinder.
The utility model is achieved through the following technical solutions:
The utility model is made up of cylinder block, linear bellows, spring, spring pull bar and recording pen driving head, cylinder block has suction port, seal plug is installed in one end of cylinder block, the other end of cylinder block is connected to bearing plate by linear bellows, bearing plate has central through bore, central through bore internal fixtion is provided with recording pen driving head, is provided with spring pull bar between recording pen driving head and seal plug, and spring pull bar is set with spring.
Described seal plug has center screw, is provided with vernier knob in screw, and vernier knob one end is fixedly mounted on spring pull bar, by the elastic force of the spring on vernier knob adjustable springs pull bar.
The beneficial effects of the utility model: the utility model adopts linear bellows and the box-like structure of cluster spring, resistance is caused to compare with energy loss with cylinder block during piston type pneumatic cylinder working with piston friction, the utility model can reflect the linear relationship between gas pressure and cylinder stroke well under the acting in conjunction of gas pressure, linear bellows and spring, in stroke action, do not produce pressure loss.
Accompanying drawing explanation
Fig. 1 is linear gas cylinder working condition schematic diagram;
In Fig. 1: 1-vernier knob; 2-seal plug; 3-spring pull bar; 4-spring; 5-suction port; 6-sealed cavity; 7-cylinder block; The linear bellows of 8-; The front position of 9-bearing plate pressure-bearing; 10-bearing plate; Position after 11-recording pen driving head 12-bearing plate pressure-bearing.
Embodiment
The utility model, as shown in Figure 1, be made up of cylinder block 7, linear bellows 8, spring 4, spring pull bar 3 and recording pen driving head 11, cylinder block 7 has suction port 5, seal plug 2 is installed in one end of cylinder block 7, the other end of cylinder block is connected to bearing plate 10 by linear bellows 8, bearing plate 10 has central through bore, its central through bore internal fixtion is provided with recording pen driving head 11, spring pull bar 3 is installed between recording pen driving head 11 and seal plug 2, spring pull bar 3 is set with spring 4.
Described seal plug 2 has center screw, is provided with vernier knob 1 in its center screw, and vernier knob 1 one end is fixedly mounted on spring pull bar 3, by the elastic force of the spring 4 on vernier knob 1 adjustable springs pull bar 3.
During work, the value of electrical signals of surveyed drilling parameter is converted to gas pressure value by electrical equipment transducer, gas enters in sealed cavity 6 by suction port 5, gas pressure acts on bearing plate 10, when gas pressure and linear bellows 8 elastic force sum are greater than the lowest pull that driving spring 4 extends, bearing plate 10 leading linear bellows 8 produces cross extending, bearing plate be in pressure-bearing after position 12; Otherwise when gas pressure reduces, bearing plate 10 makes linear bellows 8 transverse shrinkage by spring 4 and linear bellows 8 its own resilient effect, and bearing plate is in the front position 9 of pressure-bearing, reflects the linear relationship of gas pressure and cylinder stroke thus.When the elasticity coefficient of spring 4 and linear bellows 8 is determined, by the control of vernier knob 1, cylinder is enable to produce proportional cylinder stroke when gas pressure change, thus reach the linear conversion of gas pressure to cylinder stroke, and then an activation record driving head 11 moves, recording pen driving head 11 drive recording pen moving recording lower survey drilling parameter value.
Claims (2)
1. a linear cylinder, it is characterized in that: by cylinder block (7), linear bellows (8), spring (4), spring pull bar (3) and recording pen driving head (11) composition, cylinder block (7) has suction port (5), seal plug (2) is installed in one end of cylinder block (7), the other end of cylinder block is connected to bearing plate (10) by linear bellows (8), bearing plate (10) has central through bore, its central through bore internal fixtion is provided with recording pen driving head (11), spring pull bar (3) is installed between recording pen driving head (11) and seal plug (2), spring pull bar (3) is set with spring (4).
2. the linear cylinder of one according to claim 1, it is characterized in that: described seal plug (2) has center screw, be provided with vernier knob (1) in its center screw, vernier knob (1) one end is fixedly mounted on spring pull bar (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420642930.2U CN204200755U (en) | 2014-10-31 | 2014-10-31 | A kind of linear cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420642930.2U CN204200755U (en) | 2014-10-31 | 2014-10-31 | A kind of linear cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204200755U true CN204200755U (en) | 2015-03-11 |
Family
ID=52658719
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420642930.2U Expired - Fee Related CN204200755U (en) | 2014-10-31 | 2014-10-31 | A kind of linear cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204200755U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110513351A (en) * | 2019-07-15 | 2019-11-29 | 电子科技大学 | It is a kind of based on corrugated sheets without piston-cylinder |
| CN113062896A (en) * | 2021-03-18 | 2021-07-02 | 营口金辰太阳能设备有限公司秦皇岛分公司 | Driving method of ejector pin rod and negative pressure jacking type photovoltaic assembly laminating machine |
-
2014
- 2014-10-31 CN CN201420642930.2U patent/CN204200755U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110513351A (en) * | 2019-07-15 | 2019-11-29 | 电子科技大学 | It is a kind of based on corrugated sheets without piston-cylinder |
| CN113062896A (en) * | 2021-03-18 | 2021-07-02 | 营口金辰太阳能设备有限公司秦皇岛分公司 | Driving method of ejector pin rod and negative pressure jacking type photovoltaic assembly laminating machine |
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Legal Events
| 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: 20150311 Termination date: 20161031 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |