CN201129413Y - Automatic take-up device of oil pumping machine belt - Google Patents
Automatic take-up device of oil pumping machine belt Download PDFInfo
- Publication number
- CN201129413Y CN201129413Y CNU2007201591733U CN200720159173U CN201129413Y CN 201129413 Y CN201129413 Y CN 201129413Y CN U2007201591733 U CNU2007201591733 U CN U2007201591733U CN 200720159173 U CN200720159173 U CN 200720159173U CN 201129413 Y CN201129413 Y CN 201129413Y
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- control box
- motor
- fixed
- belt
- bracket
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Abstract
An automatic tension device of oil extractor belts comprises a speed reducer, a motor, a control box and a supporting bracket, wherein the speed reducer and the motor is fixed at the left end of a base, the control box is fixed at the right end of the base, the supporting bracket is fixed in the middle portion of the base, the motor and the speed reducer which are controlled by the control box are connected via a coupling, the vertical output shaft of the speed reducer is connected with a screw rod via a universal joint, the upper portion of the screw rod is in threaded engagement with a lower holder, an upper holder which is overlapped with the lower holder is fixed by two spring rods in the middle portion of the lower holder, a roller is fixed at one end of the upper holder, the supporting bracket is movably connected with the lower holder via a hinged shaft structure at the upper end, an upper check switch and a lower check switch are respectively arranged at two ends of the lower bottom face of the lower holder, and a left-middle-right check switch, namely a mechanical stroke switch is arranged on the upper surface at the left end of the upper holder. A motor convertible control circuit is arranged inside the control box. The automatic tension device of oil extractor belts not only realizes online and real time regulation with accuracy and speediness, prolongs the service life of belts, but also has high work efficiency, which can well work even at -50 DEG C.
Description
Technical field
The utility model relates to a kind of device that the elasticity of belt of oil pumping machine is regulated in the oil recovery of oil field, specifically is a kind of belt of oil pumping machine automatic takeup.
Background technique
Pumping unit uses in mechanical oil recovery extensively, its power transfers to speed reducer by motor by belt, driven to do and pumping with crossing connecting rod by crank again, reaching the oil recovery purpose, so the degree of tightness of belt directly affects the efficient and the cost of pumping unit.The big belt pulley of oil pumping unit reduction gearbox is after operation a period of time at present, relaxation phenomenon will appear in the belt on it, just occurs skidding after belt of oil pumping machine is crossed pine, makes belt damaged easily under rubbing action, cause belt short working life, and the oil pumping inefficiency.
At present, regulate measure that the belt of oil pumping machine elasticity adopted and be and carried out fasteningly by the workman according to the degree of tightness situation of belt, obviously labor intensity is big, is unfavorable for the maintenance of belt again.
Summary of the invention
The purpose of this invention is to provide a kind of belt of oil pumping machine automatic takeup, to solve the deficiency in the prior art.
Basic design of the present utility model is detecting the extending amount of the spring of being pressed by running roller as the detecting switch of sensor, thereby obtains the size of belt elasticity.According to setting in advance, the extending amount of spring is limited in the scope of the definite permission change of an actual belt of oil pumping machine of quilt.Like this, diminish in case detecting switch detects the extending amount of spring, promptly belt fluffs, if exceeded the scope that allows, then make motor just change the control running roller and rise, thereby the extending amount of adjusting spring arrives in the scope that allows; If, increased the load of pumping unit owing to the variation of ambient temperature makes excessive belt stretch, then make the motor counter-rotating, running roller descends, and the extending amount of further having adjusted spring is in the scope that allows.Therefore under this adjustment mode, can be implemented in line and adjust in real time, it is accurate, quick to adjust, and can not cause damage to belt or pumping unit.
The technical solution of the utility model: the two ends, the left and right sides on base are fixed with retarder and motor and control box respectively, be fixed with supporting frame in the intermediate portion of base again, the motor that wherein is controlled by control box is connected by shaft joint with retarder, the vertical output beam warp of retarder is connected with screw rod by universal joint, and the top of screw rod is connected with the bottom bracket screw-thread fit, fix the bracket that is superimposed with bottom bracket with two spring pull bars at the middle part of bottom bracket again, and the end in bracket is fixed with running roller, above-mentioned supporting frame flexibly connects by the twisted axis structure and the bottom bracket of upper end, be respectively arranged with detecting switch and following detecting switch at the two ends of the bottom surface of bottom bracket again, the plane is provided with a left side on the bracket left end, in, right three detecting switches, the output signal of 5 detecting switches recited above is connected on the terminal of control box.
5 above-mentioned detecting switches are all selected the mechanical trip switch for use.
The utility model has not only been realized online real-time adjustment, adjust accurately, fast, prolonged belt working life, and high working efficiency, having adopted the detecting switch as sensor besides is the mechanical trip switch, has avoided can adapting to rugged environment owing to the situation that adopts electronic sensor damaged by variation of ambient temperature, still can works fine when even environment is in-50 ℃, satisfy the use of the pumping unit in northern China oil field fully.
Description of drawings
Below in conjunction with accompanying drawing with implement to the further detailed description of doing of the present utility model.
Fig. 1 is a structural front view of the present utility model.
Fig. 2 is the plan view of Fig. 1.
Fig. 3 is control circuit figure of the present utility model.
Fig. 4 is a working principle block diagram of the present utility model.
Among the figure: 1, base; 2, retarder; 3, universal joint; 4, go up detecting switch; 5, bottom bracket; 6, screw rod; 7, left detecting switch; 8, middle detecting switch; 9, right detecting switch; 10, left spring pull bar; 11, right spring pull bar; 12, following detecting switch; 13, running roller; 14, bracket; 15, supporting frame; 16, control box; 17, motor; 18, just changeing relay; 19, counter-rotating relay; 20, switch power
Embodiment
Illustrated in figures 1 and 2, the utility model two ends, the left and right sides on base 1 are fixed with retarder 2 and motor 17 and control box 16 respectively, be fixed with supporting frame 15 in the intermediate portion of base 1 again, (this shaft joint is a standard piece by shaft joint with retarder 2 wherein to be controlled by the motor 17 of control box 16, do not mark among the figure) connect, the vertical output beam warp of retarder 2 is connected with screw rod 6 by universal joint 3, and the top of screw rod 6 is connected with bottom bracket 5 screw-thread fit, fix the bracket 14 that are superimposed with bottom bracket 5 at the middle part of bottom bracket 5 with left spring pull bar 10 and right spring pull bar 11 again, and at the fixing running roller 13 of an end of bracket 14, supporting frame 15 flexibly connects by the twisted axis structure and the bottom bracket 5 of upper end, be respectively arranged with detecting switch 4 and following detecting switch 12 again at the two ends of bottom bracket 5 bottom surfaces, the plane is provided with a left side on bracket 14 left ends, in, right three detecting switches (are respectively left detecting switches 7, middle detecting switch 8, right detecting switch 9), the output signal of 5 detecting switches recited above is connected on the terminal of control box 16.
Circuit in the above-mentioned control box 16 is the motor positive and reverse rotation control circuit, and this control circuit is general existing circuit.
As Fig. 3, the motor positive and reverse rotation control circuit is installed in 16 li of control boxs, power supply is for exchanging 380 volts, just changeing relay 18 all is connected on the incoming line with counter-rotating relay 19 input parts, output all is connected on the motor 17, control circuit is by 24 volts of direct-current switch power supply 20 output control voltage direct currents, output cathode is connected to middle detecting switch 8, middle detecting switch 8 outputs are divided into two-way, one the tunnel is left detecting switch 7, last detecting switch 4 and the control coil that is just changeing relay 18 are connected in series, another road is right detecting switch 9, the control coil of following detecting switch 12 and counter-rotating relay 19 is connected in series, last two-way all tandem constitutes complete loops to the output negative pole of direct-current switch power supply 20.
5 above-mentioned detecting switches are all selected the mechanical trip switch for use.Model is RZ-15GQ21-B3.
During use, base 1 is installed on the ground or framework of belt of oil pumping machine below, and with running roller 13 as far as possible close belt of oil pumping machine, in order that make the scope of conciliation bigger.Running roller 13 is in contact condition all the time with the belt of pumping unit during work, be that pumping unit is when in running order, running roller 13 also is in rotation status always, when belt needed tensioning, motor 17 drove screw rod 6 clockwise and rotates, and drove running roller 13 and did ascending motion, when detected left spring pull bar 10 and right spring pull bar 11 decrements are in the scope of design, also be that belt has been in impaction state this moment, control box shuts down motor by the control of circuit.
Equally, when belt is tightened because of the variation of environment, motor 17 drives screw rod 6 counterclockwise and rotates, drive running roller 13 and do descending motion, when detected left spring pull bar 10 and right spring pull bar 11 decrements are in the scope of design, also be that belt has recovered impaction state this moment, control box shuts down motor by the control of circuit.
Because the self-locking performance between screw rod and the screw, so running roller 13 is adjusted in the scope of belt tension permission all the time, if the elasticity of belt changes once more, then this model utility can be done corresponding the adjustment under the control of itself control circuit, guarantees that belt is in the optimum operating range always.
Basic adjustment working principle of the present utility model such as Fig. 4.
Claims (2)
1, a kind of belt of oil pumping machine automatic takeup, it is characterized in that its two ends, the left and right sides on base (1) is fixed with retarder (2) and motor (17) and control box (16) respectively, be fixed with supporting frame (15) in the intermediate portion of base (1) again, the motor (17) that wherein is controlled by control box (16) is connected by shaft joint with retarder (2), the vertical output beam warp of retarder (2) is connected with screw rod (6) by universal joint (3), and the top of screw rod (6) is connected with bottom bracket (5) screw-thread fit, fix the bracket (14) that is superimposed with bottom bracket (5) at the middle part of bottom bracket (5) with left spring pull bar (10) and right spring pull bar (11) again, and at the fixing running roller (13) of an end of bracket (14), supporting frame (15) flexibly connects by the twisted axis structure and the bottom bracket (5) of upper end, be respectively arranged with detecting switch (4) and following detecting switch (12) at the two ends of bottom bracket (5) bottom surface again, last plane at bracket (14) left end is provided with a left side, in, right three detecting switches (7,8,9), the output signal of 5 detecting switches recited above is connected on the terminal of control box (16).
2, as claim 1 belt of oil pumping machine automatic takeup, it is characterized in that detecting switch (4) and following detecting switch (12), left, center, right detecting switch (7,8,9) all is the mechanical trip switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201591733U CN201129413Y (en) | 2007-12-27 | 2007-12-27 | Automatic take-up device of oil pumping machine belt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201591733U CN201129413Y (en) | 2007-12-27 | 2007-12-27 | Automatic take-up device of oil pumping machine belt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201129413Y true CN201129413Y (en) | 2008-10-08 |
Family
ID=40017256
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201591733U Expired - Fee Related CN201129413Y (en) | 2007-12-27 | 2007-12-27 | Automatic take-up device of oil pumping machine belt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201129413Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102401098A (en) * | 2011-11-16 | 2012-04-04 | 宁波明润瑞达机械科技有限公司 | Transmission adjusting device |
| CN103105828A (en) * | 2011-11-14 | 2013-05-15 | 洪河 | Pumping unit belt tension measuring cluster management system |
| CN105059836A (en) * | 2015-08-07 | 2015-11-18 | 中国建材国际工程集团有限公司 | Synchronous belt tensioning system |
-
2007
- 2007-12-27 CN CNU2007201591733U patent/CN201129413Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103105828A (en) * | 2011-11-14 | 2013-05-15 | 洪河 | Pumping unit belt tension measuring cluster management system |
| CN102401098A (en) * | 2011-11-16 | 2012-04-04 | 宁波明润瑞达机械科技有限公司 | Transmission adjusting device |
| CN105059836A (en) * | 2015-08-07 | 2015-11-18 | 中国建材国际工程集团有限公司 | Synchronous belt tensioning system |
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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 |