Tower-type pulley block transmission oil jack
Technical field
The present invention relates to a kind of tower-type pulley block transmission oil jack, relate in particular to a kind of tower-type structure and 4: 1 and above assembly pulley gearratio, belong to the oil exploitation device.
Background technology
The oil rig that present oil exploitation industry is used is varied, wherein tower shelf type oil pumping machine with its reliable structure, efficient is higher occupies more and more critical role in the oil exploitation industry.But because real tower shelf type oil pumping machine need adopt reduction box mechanism, make that manufacture difficulty is big, cost is high, the precision of making directly has influence on the operating efficiency of reduction box, also can produce noise in the running simultaneously, add shortcomings such as leakage of oil problem that reduction box itself exists and difficult in maintenance, cost height, these have become a difficult problem very thorny in the industry, and therefore, solving a series of prior art problems of bringing because of reduction box has become the problem that urgently will solve in the industry.
Referring to accompanying drawing 1, represent the transmission oil pumping machine of traditional pylon band reducer, it generally includes, main frame, oil pumping polish rod, polished rod eye, oil pumping rope, reduction box, reduction gearbox output shaft, pinion, gear wheel, day wheel shaft, day wheel shaft fastener, head sheave, motor, brake, shaft coupling, counterweight, regulator cubicle, head sheave lift rope, the elevator wheel, lift rope, bearing, reduction box power shaft, small cylinder gear, axle, big column gear, bevel pinion, bevel gear wheel.1 people can clearly be seen that prior art exists in conjunction with the accompanying drawings: complex structure, installation and maintenance difficulty, manufacturing cost are high and use shortcomings such as restricted.
The reality oil pumper also has the assembly pulley of employing drive mechanism, but the assembly pulley that is adopted is 2: 1 drive mechanisms, this device has increased the volume and the cost of motor greatly, can not be fit to high-power operating mode, therefore adopts the assembly pulley drive mechanism to need further technological improvement equally.
Chinese patent by retrieval, the patent of relevant recover petroleum equipment aspect is a lot, but up to now, not have discovery that the technology contents that relates to the utility model is arranged.
Summary of the invention
The object of the present invention is to provide a kind of tower-type pulley block transmission oil jack, there is not a reduction box for a kind of, and adopted 4: 1, the recover petroleum device of 6: 1 and above assembly pulley gearratio, thus existing tower-type oil rig thoroughly solved because of a series of problems that reduction box brought; The present invention adopts the design scheme of assembly pulley, realizes that manufacturing is installed easily, low, the noiselessness and safe and reliable of cost; Simultaneously, the form of structure of assembly pulley changes various, can be 4: 1,6: 1,8: 1, perhaps according to the structure that designs different drive ratios as required arbitrarily, makes product more flexible and changeable.
Below in conjunction with Reference numeral technical scheme of the present invention is described, a kind of tower-type pulley block transmission oil jack, comprise, assembly pulley, wire rope or steel band or nylon rope 12, and support 2, brake 3, traction sheave 4, directive wheel 6, brake disc 7, pylon 8, counterweight 9, connector 10 and 11, upper mounting plate 14, fast pulley 15, semi girder 16, the sucker rod 17 of switch board 1, motor 5 and support motor, wherein
Described assembly pulley is made of two or more at least movable pulley 12 and two or more at least fixed pulley 13, and the pulley combination form that described movable pulley and fixed pulley are formed is 4: 1, or 6: 1, or 8: 1, or above collocation form,
When described pulley combination form is 4: 1, one end of described wire rope or steel band or nylon rope 12 is fixed on the counterweight 9 by connector 10-1, walk around traction sheave 4, fast pulley 15, directive wheel 6, movable pulley 11-1, fixed pulley 13-1, movable pulley 11-2 then successively, be connected to a fixed by connector 10-2 and sucker rod 17
Described motor 5 is fixed on the upper mounting plate 14, the axle of motor be connected by support 2 supports and with traction sheave 4,
By 5 rotatings of controller 1 drive motor, make traction sheave 4 drive wire rope 12 described counterweight 9 and sucker rod 17 are up and down reciprocatingly worked.
The present invention has following good effect:
1, the present invention is owing to cancelled expensive reduction box, adopt the simple and flexible pulley block structure, thereby thoroughly solved existing tower-type oil rig because of a series of problems that reduction box brought, greatly reduce cost of production, simplify system architecture, avoided noise, easy to install, safeguard that it has, and cost is low, simple in structure, noise is little easily, easy to use.
2, the variation of assembly pulley gearratio design can be satisfied demands for different power classes of working.
Description of drawings
Fig. 1 is traditional tower-type reducer transmission oil pumping machine system;
Fig. 2 is a structural representation of the present invention;
Fig. 3 is the plan structure schematic diagram of Fig. 2;
Fig. 4 is 6: 1 pulley block structure schematic diagrames among the present invention;
Fig. 5 is 8: 1 pulley block structure schematic diagrames among the present invention.
Indicate among the figure: 1, switch board, 2, support, 3, brake, 4, traction sheave, 5, motor, 6, directive wheel, 7, brake disc, 8, pylon, 9, counterweight, 10, connector, 11-1~11-4 are movable pulley, 12, wire rope or steel band or nylon rope, 13-1~13-3 is a fixed pulley, 14, upper mounting plate, 15, fast pulley, 16, semi girder, 17, sucker rod.
The specific embodiment
Further specify technology contents of the present invention and embodiment below in conjunction with accompanying drawing 2-5.
Accompanying drawing 2, the two sides schematic diagram of 3 expressions structure of the present invention, in conjunction with the accompanying drawings 2,3, contrast the accompanying drawing 1 of prior art again, can clearly be seen that structure of the present invention, reduction box in its cancellation conventional tower posture oil rig, driving wire rope/steel band/nylon rope with assembly pulley substitutes, the tower-type pulley block transmission oil jack that provides, comprise, assembly pulley, wire rope or steel band or nylon rope 12, and switch board 1, the support 2 of motor 5 and support motor, brake 3, traction sheave 4, directive wheel 6, brake disc 7, pylon 8, counterweight 9, connector 10,11, upper mounting plate 14, fast pulley 15, semi girder 16, sucker rod 17, wherein
Described assembly pulley is made of two or more at least movable pulley 12 and two or more at least fixed pulley 13, and the pulley combination form that described movable pulley 12 and fixed pulley 13 are formed is 4: 1, or 6: 1, or 8: 1, or above collocation form,
When described pulley combination form is 4: 1, one end of described wire rope or steel band or nylon rope 12 is fixed on the counterweight 9 by connector 10-1, walk around traction sheave 4, fast pulley 15, directive wheel 6, movable pulley 11-1, fixed pulley 13, movable pulley 11-2 then successively, be connected to a fixed by connector 10-2 and sucker rod 17
Described motor 5 is fixed on the upper mounting plate 14, the axle of motor be connected by support 2 supports and with traction sheave 4,
By 5 rotatings of controller 1 drive motor, make traction sheave 4 drive wire rope 12 described counterweight 9 and sucker rod 17 are up and down reciprocatingly worked.
Described traction sheave 4 and brake disc 7 are for being fastenedly connected, by brake 3 skiddings.
Described upper mounting plate 14 is fixed on pylon 8 tops, is fixed with switch board 1, motor 5 and fast pulley 15 on the upper mounting plate 14.
Accompanying drawing 4 is 6: 1 pulley block structure schematic diagrames among the present invention, be embodiment, its expression is when described pulley combination form is 6: 1 structures, comprise two fixed pulley 13-1 and 13-2 and three movable pulley 11-1,11-2,11-3, pass next wire rope or steel band or nylon rope 12 by directive wheel 6 and walk around movable pulley 11-1 earlier, walk around the fixed pulley 13-1 that is fixed under the semi girder 16 then, again around to movable pulley 11-2, walk around the fixed pulley 13-2 that is fixed under the semi girder 16 then, around to movable pulley 11-3, be connected with sucker rod 17 by connector 10-2 then again.
Accompanying drawing 5 is 8: 1 pulley block structure schematic diagrames among the present invention, be embodiment, its expression is when described pulley combination form is 8: 1 structures, comprise three fixed pulley 13-1,13-2,13-3 and four movable pulley 11-1,11-2,11-3,11-4, pass next wire rope or steel band or nylon rope 12 by directive wheel 6 and walk around movable pulley 11-1 earlier, walk around the fixed pulley 13-1 that is fixed under the semi girder 16 then, again around to movable pulley 11-2, walk around the fixed pulley 13-2 that is fixed under the semi girder 16 then, again around to movable pulley 11-3, again around to movable pulley 11-3, walk around the fixed pulley 13-3 that is fixed under the semi girder 16 then, around to movable pulley 11-4, be connected with sucker rod 17 by connector 10-2 then again.
The present invention adopts the assembly pulley kind of drive, structure shown in frame of broken lines among Fig. 3, replaced traditional reducer transmission device (seeing reduction box in Fig. 1 frame of broken lines, pinion, gear wheel etc.), thereby reached the pumping efficiency that improves whole oil pumping system, reduced cost, simplify system architecture, avoided noise problem and easy to maintenance.
Described wire rope, or steel band, or nylon rope 12 gets a kind ofly for optional, it would be desirable steel band, and steel band is not have employing in the reality technology.
The present invention only is described in detail with regard to a most preferred embodiment of the present invention; but can not be interpreted as restriction to other modes of the invention process; everyly further improve and similar or identical scheme on basis of the present invention, all being considered as is the scope that the present invention asks for protection.