CN2615334Y - Auxiliary donkey head balance connecting rod beam-pumping unit - Google Patents
Auxiliary donkey head balance connecting rod beam-pumping unit Download PDFInfo
- Publication number
- CN2615334Y CN2615334Y CN 03240515 CN03240515U CN2615334Y CN 2615334 Y CN2615334 Y CN 2615334Y CN 03240515 CN03240515 CN 03240515 CN 03240515 U CN03240515 U CN 03240515U CN 2615334 Y CN2615334 Y CN 2615334Y
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- pull bar
- counterweight
- weight
- connecting rod
- compression spring
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Abstract
The utility model relates to an auxiliary horse-head balancing connecting lever beam-pumping unit, which comprises a crank pitman mechanism, a counterbalance weight, a walking beam and a weight frame, wherein the crank pitman mechanism comprises an inertia wheel and a pitman arranged on the inertia wheel, the counterbalance weight comprises an auxiliary horse-head arranged on the walking beam and a weight trolley connected with the auxiliary horse-head by a balancing guiding rope. Since the weight of the pumping unit is forced under the case of linear motion, the acceleration of the motion and the force are changed little, thereby preventing the distortion phenomenon from happening. Compared with a weigh of the traditional pumping unit, the weight is a volumetric trolley capable of loading bulk stone and concrete integration block and can save a plurality of steel. When the utility model is installed, the weight can be adjusted easily, and the weight of the counterbalance weight can be confirmed in several minutes as long as knowing the well depth and the pump-setting case and adjusted by the operating staff with finesse without the calculation of the technical staff.
Description
Technical field
The utility model relates to a kind of pumping unit, specifically, relates to a kind of secondary horse head balanced connecting rod beam pumping unit.
Background technology
Traditional beam pumping unit referring to Fig. 6, mainly comprises motor 1, reductor 2, crank connecting link machine 3, walking beam 4, support 5, horse head 6 and the outstanding rope 7 that horse head 6 is connected with beam hanger 8, sees Fig. 6.Its balance mainly is to realize that by the balancing weight 9 and 10 that is arranged on crank and the walking beam motor 1 provides power for reductor 2, thereby drives crank and connecting rod movement, and the balancing weight on the crank also rotates thereupon.We know that the acceleration of the object of making circular motion and suffered power all are to change by simple harmonic quantity formula rule on crank, thereby the accekeration, gravity that have caused driving link in the component value of crank direction all in a week of rotation, maximum value and minimum value respectively occur twice, cause harmful effect to system, major defect has:
1. counterbalance effect is undesirable, and lifetime of system is shorter.The variation of acceleration has caused the variation of the counterweight driving link inertia of eccentric weight, can cause very big bang to system, all produces additional vibrational loading as bearing, pitch wheel, bearing pin, axle sleeve or the like, and the life-span of paying reduces; The variation of the component value of gravity on the crank-motion direction, make that joining more effective sexual love of piece 7 arrives influence, thereby cause the distortion of the validity of balance, that is: making counterweight reach 5 tons very crosses more than 5 tons, when crank-motion to perpendicular position, ground the time, the virtual value moment of gravity on the crank-motion direction is zero, and this moment, counterweight can not be brought into play balanced action effectively.Because beam balance in the walking beam motion process, is the simple harmonic quantity formula characteristics of motion equally, the shortcoming and defect of crank balance exists equally.
2. manufacturing and installation difficulty
Crank balance and beam balance all adopt the metal material manufacturing based on the reason of aspects such as intensity, promptly make with cast steel or cast iron, and the weight of each crankshaft balance weight all reaches (12 type oil pumper) more than 1 ton, and every machine will be joined four.The balance weight of beam balance is littler than crankshaft balance weight, but accumulative total also reaches between the 0.5-1.0 ton.So heavy counterweight all is quite difficult in manufacturing and installation process.For the installation that makes crank balance firmly and be convenient to adjust, make the structure manufacturing process complexity of crank because the tooth bar shape need be processed in the both sides of crank, and the weight of each crank reaches more than 1.0 tons, its processing and manufacturing cost is very big.
3. no matter crank balance and beam balance, obtain counterweight effect preferably, start with as calculating from theory, have quite numerous and diverse tediously long formula and complicated chart to be used, general technician can not use handyly, if the execute-in-place practice, more need repeated experiments again and again, constantly increase and decrease the counterweight amount, adjust the radius of center of gravity, spend considerable time.Because the situation of every mouthful of well is all different, the situation of oil pumper also all varies, and the trim effect of every mouthful of well can not be identical.Therefore, what cause that motor sends all is rhythm is arranged, to have " rhythm " sound, particularly gas engine directly to drag oil pumper, and the decibels of its noise differs greatly in one-period.
The utility model content
The purpose of this utility model provides a kind of secondary horse head balanced connecting rod beam pumping unit of good balance effect.
Secondary horse head balanced connecting rod beam pumping unit described in the utility model comprises crank-link mechanism, counterweight and walking beam.Described crank-link mechanism comprises flying wheel and the connecting rod of installing on flying wheel, described counterweight comprises secondary horse head that is fixedly mounted on the walking beam and the counterweight dolly that is connected with secondary horse head by the balance traction rope, and the counterweight dolly moves on the counterweight support.
Described secondary horse head is two block plates, is installed in relatively symmetrically on the walking beam by bolt, and its position is near main horse head, and described counterweight support is 1 or 2, and it is provided with the head sheave that has groove on the external cylindrical surface, and the balance traction rope is placed within it.
Described secondary horse head is a whole plate, is arranged on the afterbody of walking beam installing connecting rods one end by support.
The lower end of described counterweight dolly has buffer, and this device comprises compression spring and spring case, and described balance traction rope passes the counterweight dolly and is connected with the bottom of spring.
The weight of described flying wheel can be offset the motional inertia of counterweight dolly and sucker rod as far as possible according to the inertia of the rotating speed generation of wheel.
Oil pumper described in the utility model, also has booster, this device comprises that two one ends connect with the pull bar that the axle sleeve of connecting rod is rotationally connected, the other end is connected with support, when two pull bars during at a straight line, the angle of its pull bar and vertical center line is 70 °-80 °, has block on pull bar, above block, drag link sleeve is equipped with the compression spring, and this compression spring is installed in the sleeve pipe, and this sleeve pipe is installed on the rocker bar bearing.
The advantage of oil pumper described in the utility model is:
1. the counterweight of oil pumper is stressed under straight-line situation, and the acceleration of its motion and the variation of power are little, thereby do not have " distortion " phenomenon.
2. counterweight is the positive displacement dolly, and the interior shape stone that looses of adorning also can be adorned the concrete integrated package, compares with the counterweight of traditional oil pumper, can save great deal of steel.
3. when installing, adjust simply, a few minutes just can accurately be determined the counterweight amount as long as understanding well depth and pump are hung situation (all there is record at the scene), need not the technician and calculate, and the operator can both adjust handyly.
Description of drawings
Fig. 1 is the structural representation of secondary horse head balanced connecting rod beam pumping unit described in the utility model;
Fig. 2 is the left side view of Fig. 1;
Fig. 3 is the structural scheme of mechanism of booster;
Fig. 4 is the lateral view of Fig. 3;
Fig. 5 is the structural representation of another enforcement of secondary horse head balanced connecting rod beam pumping unit described in the utility model;
Fig. 6 is the structural representation of existing connecting-rod beam formula oil pumper.
The specific embodiment
Referring to Fig. 1 and Fig. 2, secondary horse head balanced connecting rod beam pumping unit described in the utility model comprises crank-link mechanism 3, counterweight and walking beam 4.The connecting rod 8 that described crank-link mechanism 3 comprises flying wheel 11 and installs on flying wheel 11.Described counterweight comprises secondary horse head 13 that is fixedly mounted on the walking beam 4 and the counterweight dolly 14 that is connected with secondary horse head 13 by balance traction rope 19, and counterweight dolly 14 moves on counterweight support 15.
Described secondary horse head 13 is two block plates, relatively is installed on the walking beam 4 by bolt, should try one's best near horse head 6 in its position, and described counterweight support 15 is provided with the head sheave 16 that has groove on the external cylindrical surface, and balance traction rope 19 is placed within it.This can be one, also can be two, determines according to the physical features in operation place.Ordinary circumstance is used two, only in the specific place that can not place two, can use a counterweight support.Referring to Fig. 2, when being two, each block plate of secondary horse head 13 all has balance traction rope 19, is connected with a counterweight dolly 14 respectively.If during a counterweight support 15, on same counterweight support, have two head sheaves that stagger mutually, to place balance traction rope 19 respectively, perhaps adopt a balance traction rope 19 to be connected with walking beam 4 or horse head 6.
Referring to Fig. 5, another embodiment of oil pumper described in the utility model is that described secondary horse head 13 is whole plates, be arranged on the afterbody of walking beam 4 installing connecting rods 8 one ends by support 27, the balance traction rope 19 on it is connected with counterweight dolly 14, and the counterweight dolly moves on counterweight support 15.
Various materials can pack into as counterweight in the counterweight dolly 14, as sandstone, iron block or the like, also can be with cement or other material shaping block, cover hangs on the pull rope 4 that passes the counterweight dolly relatively.
The lower end of described counterweight dolly 14 has buffer, and this device comprises compression spring 17 and spring case 18.Described balance traction rope 19 passes counterweight dolly 14 and is connected with the bottom of spring 17.Like this, in the course of the work,, when counterweight dolly 14 moves downward, can alleviate downward impulse force when promoting beam hanger 9; Equally, when beam hanger 9 moves downward, when counterweight dolly 14 is upwards carried, can also alleviate impulse force upwards.
The weight of flying wheel 11 should be able to be offset the motional inertia of counterweight dolly 14 and beam hanger 8 as far as possible according to the inertia of the rotating speed generation of wheel.
Referring to Fig. 3 and Fig. 4, secondary horse head balanced connecting rod beam pumping unit described in the utility model is also had a booster.This device comprises that the axle sleeve 21 of two one ends and connecting rod 8 is rotationally connected, the pull bar 22 of the other end and support 29 hinges, and when the motion of two pull bars was in a straight line, the angle α of its pull bar and vertical center line was 70 °-80 °.Described support is fixedly mounted on the both sides of reductor 2, is used for supporting hinges bearing 26.
Have block 23 on pull bar 22, above block 23, pull bar 22 is set with compression spring 24, and this compression spring 24 is installed in the sleeve pipe 25, and this sleeve pipe 25 is installed on the rocker bar bearing 26.When flying wheel 11 rotates, when the end points of connecting rod 8 moves to A point or C point, pull bar 22 compression springs 32, storage power energization, when turn to two pull bars 22 in line during N-N storage power reach maximum value, flying wheel 11 is rotated further, because pull bar 22 has an angle with vertical center line, and spring 24 this moments of elongation gradually, begin to release energy, thereby the end points of connecting rod 8 arrives when going up dead B or bottom dead centre D, and spring forces connecting rod to spend bottom dead centre B, D.
Claims (8)
1. secondary horse head balanced connecting rod beam pumping unit, comprise crank-link mechanism (3), counterweight and walking beam (4), it is characterized in that described crank-link mechanism (3) comprises flying wheel (11) and goes up the connecting rod (9) of installation at flying wheel (11), described counterweight comprises secondary horse head (2) that is fixedly mounted on the walking beam (4) and the counterweight dolly (14) that is connected with secondary horse head (13) by balance traction rope (19), and counterweight dolly (14) is gone up at counterweight support (15) and moved.
2. oil pumper according to claim 1, it is characterized in that described secondary horse head (2) is two block plates, be installed in relatively symmetrically on the walking beam (4) by bolt, its position is near main horse head (6), described counterweight support (15) is 1 or 2, it is provided with the head sheave (16) that has groove on the external cylindrical surface, and balance traction rope (19) is placed within it.
3. oil pumper according to claim 1 is characterized in that described secondary horse head (13) is a whole plate, is arranged on the afterbody of walking beam (4) installing connecting rods (8) one ends by support (27).
4. according to claim 1 or 2 or 3 described oil pumpers, the lower end that it is characterized in that described counterweight dolly (14) has buffer, this device comprises compression spring (17) and spring case (18), and described balance traction rope (19) passes counterweight dolly (14) and is connected with the bottom of spring (17).
5. oil pumper according to claim 3, the inertia that the weight that it is characterized in that described flying wheel (11) produces according to the rotating speed of wheel can be offset the motional inertia of counterweight dolly (14) and beam hanger (8) as far as possible.
6. according to each described oil pumper among the claim 1-3, it is characterized in that also having booster, this device comprises that two one ends connect with the pull bar (22) that axle sleeve (21) is rotationally connected, the other end is connected with support of connecting rod (9), when two pull bars during at a straight line, the angle of its pull bar and vertical center line (α) is 70 °-80 °, on pull bar (30), has block (23), above block, pull bar (22) is set with compression spring (24), this compression spring is installed in the sleeve pipe (25), and this sleeve pipe is installed on the rocker bar bearing (26).
7. according to each described oil pumper in the claim 5, it is characterized in that also having booster, this device comprises that two one ends connect with the pull bar (22) that axle sleeve (21) is rotationally connected, the other end is connected with support of connecting rod (9), when two pull bars during at a straight line, the angle of its pull bar and vertical center line (α) is 70 °-80 °, on pull bar (30), has block (23), above block, pull bar (22) is set with compression spring (24), this compression spring is installed in the sleeve pipe (25), and this sleeve pipe is installed on the rocker bar bearing (26).
8. according to each described oil pumper in the claim 6, it is characterized in that also having booster, this device comprises that two one ends connect with the pull bar (22) that axle sleeve (21) is rotationally connected, the other end is connected with support of connecting rod (9), when two pull bars during at a straight line, the angle of its pull bar and vertical center line (α) is 70 °-80 °, on pull bar (30), has block (23), above block, pull bar (22) is set with compression spring (24), this compression spring is installed in the sleeve pipe (25), and this sleeve pipe is installed on the rocker bar bearing (26).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03240515 CN2615334Y (en) | 2003-03-12 | 2003-03-12 | Auxiliary donkey head balance connecting rod beam-pumping unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03240515 CN2615334Y (en) | 2003-03-12 | 2003-03-12 | Auxiliary donkey head balance connecting rod beam-pumping unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2615334Y true CN2615334Y (en) | 2004-05-12 |
Family
ID=34250067
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03240515 Expired - Fee Related CN2615334Y (en) | 2003-03-12 | 2003-03-12 | Auxiliary donkey head balance connecting rod beam-pumping unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2615334Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102808602A (en) * | 2012-08-23 | 2012-12-05 | 李兆胜 | Automatic speed-changing wide-swing-angle oil pumping machine |
| CN107725574A (en) * | 2017-10-30 | 2018-02-23 | 濮阳市江源齿轮制造有限公司 | A kind of crank suitable for oil pumper |
-
2003
- 2003-03-12 CN CN 03240515 patent/CN2615334Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102808602A (en) * | 2012-08-23 | 2012-12-05 | 李兆胜 | Automatic speed-changing wide-swing-angle oil pumping machine |
| CN102808602B (en) * | 2012-08-23 | 2014-12-10 | 李兆胜 | Automatic speed-changing wide-swing-angle oil pumping machine |
| CN107725574A (en) * | 2017-10-30 | 2018-02-23 | 濮阳市江源齿轮制造有限公司 | A kind of crank suitable for oil pumper |
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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 |