CN2280782Y - Unloading protecting mechanism for chain oil-sucking machine - Google Patents
Unloading protecting mechanism for chain oil-sucking machine Download PDFInfo
- Publication number
- CN2280782Y CN2280782Y CN 96203666 CN96203666U CN2280782Y CN 2280782 Y CN2280782 Y CN 2280782Y CN 96203666 CN96203666 CN 96203666 CN 96203666 U CN96203666 U CN 96203666U CN 2280782 Y CN2280782 Y CN 2280782Y
- Authority
- CN
- China
- Prior art keywords
- sucking machine
- centrifugal
- unloading
- oil
- chain oil
- 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 belongs to the field of petroleum field machinery. Any mechanical oil-sucking machine all has the safety problem of unloading. The safety problem of unloading of a chain oil-sucking machine is especially obvious because of longer stroke. The existing chain oil-sucking machine has the disadvantages of complex structure, difficulty installation and debugging, inconvenient maintenance, and high production cost. An unloading protecting mechanism for a chain oil-sucking machine is a safety control mechanism which is used for preventing a balance device from crashing, by using the rate limitation of the centrifugal friction. The utility model has the advantages of simple structure, convenient installation and debugging, convenient operation and maintenance, and low production cost. The utility model can be applied to oil production devices of other mechanisms with longer stroke.
Description
The utility model belongs to the oil field equipment field
In chain drive pumping unit when work,, its Equilibrator (balancing mass) is being done vertical back and forth movement between very big upper and lower two sprocket wheels of distance, and when accident such as rod parting took place, Equilibrator just lost and the getting in touch of external load, and just loses and carries.Pumping unit is a kind of equipment of unmanned guard; in case a year phenomenon takes place to lose; motor load increases suddenly; result or because of the electric prospection function; or because of other; motor can lose tractive force (outage) eventually; this moment, Equilibrator began free fall out of control; under gravitational effect; Equilibrator falls faster and faster; in commutation place just of lower sprocket turning, produce the commutation dynamic load of extraordinary several times even tens times, this dynamic load can reach the degree of destroying driving component (comprising chain) even destroying whole equipment sometimes.Therefore, the equipment that similar chain drive pumping unit is such, equipment lose and carries protection mechanism is vital.
Present U.S. ROTAFLEX pumping unit and homemade QL J12 pumping unit have all been equipped mistake separately and have been carried protection mechanism.Though two kinds lose to carry protection mechanism concrete structures and are not quite similar, and all are to be final purpose with the brake, this is that protection mechanism is carried in the mistake of final purpose with the brake, though be feasible, mechanism is too complicated.With the ROTAFLEX pumping unit is example, its structure and principle are as follows: by the speed of speed monitoring system monitoring pumping unit transmission system, signal input computer is judged, when discovery speed transfinited, the computer instruction jet power unit was carried out brake (data source is in " ROTAFLEX900 I﹠M specification ").Obviously, this mechanism's more complicated, the one, device is many, and the one, part category is many, and machinery is not only arranged, electric in addition, micro computer and pneumatic power etc., Installation and Debugging and working service are inevitable inconvenient, and cost is inevitable high.
The present invention just becomes existing brake protection and is speed-limiting protection by existing the mistake carried the reform that protection mechanism is protected mechanism, reaches to simplify the internal structure of an organization, and makes things convenient for Installation and Debugging, the purpose that makes things convenient for working service and reduce cost.
The present invention realizes the above-mentioned purpose design proposal as shown in the figure: cylinder 2 maintains static, rotating disk 1 is fixed on the speed reducer high speed shaft, rotate synchronously with the speed reducer high speed shaft, be installed in for two centrifugal 3 in two grooves at the center that is symmetrical on the rotating disk, pulling force safety piece 4 two ends connect two centrifugal with bearing pin 5, bearing two centrifugal centrifugal force that under the pumping unit rated speed, produce, guaranteeing two centrifugal and do not contact cylinder.When chain drive pumping unit takes place to lose the accident of carrying, rotary speed rises gradually, centrifugal centrifugal force improves with the rising of rotary speed, when rotary speed rises to the centrifugal force that makes centrifugal and breaks the pulling force safety piece, two centrifugal under the driving of centrifugal force separately, press to cylinder at once, and produce frictional resistance simultaneously, when the resistive torque of rotating disk surpassed the accident moment of torsion of speed reducer high speed shaft, the trend that the speed reducer rotating speed continues to rise just was limited, and is limited on the lower speed.
Angle =0～180 of rotating disk groove ℃, angle point O
1Can overlap with center of turntable O, also can not overlap, be i.e. l 〉=0.The selection of the internal diameter size of cylinder, centrifugal quality and centrifugal and the abrasives of cylinder etc. should be satisfied when taking place to lose the accident of carrying, and under the highest accident rotating speed of pumping unit that limits, guarantees resistive torque that rotating disk the produces accident moment of torsion greater than high speed shaft.The lower limit of the rupture pull force numerical value of pulling force safety piece should guarantee that pumping unit can run well under rated speed, the upper limit should guarantee that the highest accident rotating speed of pumping unit is no more than the rotating speed of qualification.
From conceptual schematic drawing as can be seen; this loses and carries protection mechanism is that speed monitoring, accident judgement, instruction system and actuator are reduced to several mechanical parts; structure is very simple; installation is saved trouble; debugging is simple; safeguard that (just changing later a pulling force safety piece in accident) is convenient, manufacture cost is much lower.
Claims (2)
1, chain drive pumping unit lose to carry protection mechanism and is made up of centrifugal (3) pulling force safety piece of rotating disk (1) cylinder (2) (4) etc.; it is characterized in that: in two grooves that two centrifugal is installed in the center that is symmetrical on the rotating disk, each is connected the two ends of pulling force safety piece with one centrifugal.
2, chain drive pumping unit according to claim 1 loses and carries protection mechanism, it is characterized in that the two ends of pulling force safety piece can directly also can be connected with centrifugal indirectly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96203666 CN2280782Y (en) | 1996-02-04 | 1996-02-04 | Unloading protecting mechanism for chain oil-sucking machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96203666 CN2280782Y (en) | 1996-02-04 | 1996-02-04 | Unloading protecting mechanism for chain oil-sucking machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2280782Y true CN2280782Y (en) | 1998-05-06 |
Family
ID=33889193
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96203666 Expired - Fee Related CN2280782Y (en) | 1996-02-04 | 1996-02-04 | Unloading protecting mechanism for chain oil-sucking machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2280782Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110745727A (en) * | 2019-10-25 | 2020-02-04 | 三一重能有限公司 | Electric hoist and wind driven generator |
-
1996
- 1996-02-04 CN CN 96203666 patent/CN2280782Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110745727A (en) * | 2019-10-25 | 2020-02-04 | 三一重能有限公司 | Electric hoist and wind driven generator |
| CN110745727B (en) * | 2019-10-25 | 2021-12-24 | 三一重能有限公司 | Electric hoist and wind driven generator |
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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 |