CN210068101U

CN210068101U - Movable machine abdicating non-beam pumping unit

Info

Publication number: CN210068101U
Application number: CN201920729076.6U
Authority: CN
Inventors: 马丹丹; 于金涛
Original assignee: Daqing Dannuo Petroleum Technology Development Co ltd
Current assignee: Daqing Dannuo Petroleum Technology Development Co ltd
Priority date: 2019-05-21
Filing date: 2019-05-21
Publication date: 2020-02-14
Anticipated expiration: 2029-05-21

Abstract

The utility model belongs to no beam-pumping unit field especially relates to a can move quick-witted no beam-pumping unit who steps down, including base, body of tower and actuating mechanism, the body of tower install on the base, actuating mechanism installs on the platform at body of tower top, the body of tower be the posture structure of four stands, but the body of tower passes through the bearing relative base and slides, the body of tower passes through fixing bolt with the base and realizes the fastening, fixedly connected with silk braid on the base, has connect the lead screw soon in the silk braid, lead screw one end is connected with the body of tower, the carousel that is used for rotatory lead screw is installed to the lead screw other end, reduction gears be planetary gear reduction gears, the platform on install the hoist engine, the hoist engine is connected with the balancing weight through wire rope. Compare with conventional no beam-pumping unit, the utility model discloses a structure safe and reliable more has the function that wholly moves the machine and step down when workover, need not the crane cooperation simultaneously before the operation and can unload well head load by oneself.

Description

Movable machine abdicating non-beam pumping unit

Technical Field

The utility model belongs to no beam-pumping unit field especially relates to a can move no beam-pumping unit that quick-witted stepping down.

Background

In the oil exploitation process, the pumping unit is the most common oil extraction equipment, most pumping units used in the prior art are beam pumping units, and due to the limitation of the physical structure of the pumping unit, the pumping unit has the problems of low mechanical transmission efficiency, large power consumption, difficulty in mechanical maintenance, high mechanical failure rate and the like. In order to solve the problems, researchers design a non-beam pumping unit.

Current no beam-pumping unit generally includes the base, body of a tower and actuating mechanism, the body of a tower is installed on the base, actuating mechanism installs on the platform at body of a tower top, actuating mechanism includes the motor, the cylinder, belt and balancing weight, the both ends of belt are connected with polished rod eye and the balancing weight of beam-pumping unit respectively, the belt encircles on the cylinder from the upside of cylinder, the motor passes through reduction gears drive drum rotation, the rotary motion of cylinder makes polished rod eye and the balancing weight at belt both ends translate from top to bottom under the drive of belt, thereby realize the oil pumping action of beam-pumping unit. However, most of the existing tower bodies are of a double-column structure, a protective diagonal draw bar is connected between the upper end of the tower body and the base, and the stability of the tower body is directly influenced by the connection strength of the protective diagonal draw bar, so that the stability of the tower body needs to be improved; in addition, the existing tower body cannot be integrally moved to move and yield during well repair, so that the space for mounting and dismounting the pump hanger is limited, and the work efficiency is not improved.

SUMMERY OF THE UTILITY MODEL

For the not enough problem of tower body stability among the solution background art to and the tower body can not wholly move the machine problem of stepping down, the utility model provides a can move the no beam-pumping unit that the machine stepped down, the utility model discloses stability is good, can wholly step down, can let out the characteristics of well head load by oneself.

The utility model provides a technical scheme is: a movable machine abdicating walking-beam-free oil pumping machine comprises a base, a tower body and a driving mechanism, wherein the base is arranged on a ground of a ground concrete structure through an anchoring bolt, the tower body is arranged on the base, the driving mechanism is arranged on a platform at the top of the tower body, the driving mechanism comprises a motor, a speed reducing mechanism, a roller, a belt and a balancing weight, two ends of the belt are respectively connected with the balancing weight and a rope hanger of the oil pumping machine, the belt surrounds the roller from the upper side of the roller, the motor drives the roller to rotate through the speed reducing mechanism, the rotating motion of the roller enables the rope hanger and the balancing weight at two ends of the belt to translate up and down under the driving of the belt, so that the oil pumping action of the oil pumping machine is realized, the tower body is of a frame structure with four upright posts, bearings are respectively arranged at four bottom corners of the tower body, the tower body can slide relative to the base, the fixing bolt hole on the base is a long hole, a screw sleeve is fixedly connected to the base at one end far away from the well mouth, a screw rod is screwed in the screw sleeve, one end of the screw rod is connected with the tower body, and a turntable for rotating the screw rod is installed at the other end of the screw rod; the speed reducing mechanism is a planetary gear speed reducing mechanism, the planetary gear speed reducing mechanism is positioned in the roller, a high-speed input shaft of the planetary gear speed reducing mechanism is positioned in the center of the roller, a low-speed output shaft of the planetary gear speed reducing mechanism is the roller, an output shaft of the motor is connected with the high-speed input shaft through a coupler, and two ends of the roller are provided with dustproof sealing covers; the platform on install the hoist engine, the hoist engine is connected with the balancing weight through wire rope.

The length of the long hole is not less than 1 meter; the coupler is a drum coupler, and a protective cover is sleeved outside the coupler; the thread sleeve and the screw rod are both made of No. 45 steel and are quenched.

The utility model has the advantages that:

1. the utility model discloses a body of the tower adopts integral four-column posture structure, and the line of gravity of body of the tower and the line of gravity of balancing weight coincide basically, compare with the triangle-shaped body of the tower that has oblique pull rod commonly used among the prior art, more stable focus has stronger bearing capacity, safe and reliable more in the use.

2. The utility model discloses a tower body combines with the lead screw tractor through the four mouthfuls of bearings of bottom and can carry out whole machine that moves and step down, for the well workover with adorn, unload the pump and hang and provide sufficient space, be favorable to very much accelerating well workover work efficiency.

3. The utility model discloses with reduction gears embeds in the cylinder, to cylinder and reduction gear integration together, the cylinder not only transmits power but also governing speed to equipment structure has been simplified. Simultaneously, compared with the prior art, above-mentioned structure has two aspects advantage: on one hand, the speed reducing mechanism is accommodated in the closed space in the roller, so that the damage of natural environments such as sand blown by the wind, rain, sunlight and the like to the speed reducing mechanism can be avoided, the service life and the maintenance period of the speed reducing mechanism are prolonged, and the running stability of equipment is improved; on the other hand, compared with the belt transmission speed reducing mechanism in the prior art, the planetary gear speed reducing mechanism has the characteristics of more stable operation, higher motion precision and larger bearing torque. Therefore, compared with the prior art, the utility model discloses there is obvious superiority.

4. The utility model discloses before the operation, can rise through the balancing weight that the hoist engine will be located the low point, with on the beam-pumping unit on whole well head loads hands over to the polished rod eye fender card, then the hoist engine is transferring the balancing weight, this in-process, no longer need special crane help to unload the load, saved the expense of crane, also stopped the potential safety hazard in the crane use.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural diagram of the present invention above the middle platform.

Fig. 3 is a cross-sectional view of the lower end bearing of the tower body of the present invention.

Fig. 4 is a partially enlarged view of a portion a in fig. 1.

Fig. 5 is a schematic structural view of the planetary gear reduction mechanism.

In the figure: 1-foundation, 2-base, 3-windlass, 4-motor, 5-speed reducing mechanism, 6-belt, 7-tower body, 8-counterweight, 9-roller, 10-bearing, 11-wire sleeve, 12-rotary table, 13-screw rod, 14-planetary gear, 15-gear rack, 16-sun gear, 17-high speed input shaft and 18-elongated hole.

Detailed Description

The invention is further described below with reference to the accompanying drawings:

with reference to the drawings, the embodiment comprises a base 2, a tower body 7 and a driving mechanism, the base 2 is installed on a ground 1 of a concrete structure on the ground through anchoring bolts, the tower body 7 is installed on the base 2, the driving mechanism is installed on a platform at the top of the tower body 7, the driving mechanism comprises a motor 4, a speed reducing mechanism 5, a roller 9, a belt 6 and a balancing weight 8, two ends of the belt 6 are respectively connected with the balancing weight 8 and a rope hanger of an oil pumping unit, the belt 6 surrounds the roller 9 from the upper side of the roller 9, the motor 4 drives the roller 9 to rotate through the speed reducing mechanism 5, the rotating motion of the roller 9 enables the rope hanger and the balancing weight 8 at two ends of the belt 6 to translate up and down under the driving of the belt 6, so that the oil pumping action of the oil pumping unit is realized, a fence is installed around the platform, and a. The above is the structure existing in the prior art, and is not described in detail herein.

The utility model discloses an innovation point lies in: the tower body 7 is a frame structure with four upright posts, the whole tower body 7 is a whole body, assembly is not needed, and the structure is more reliable. The gravity center line of the tower body 7 is basically coincident with the gravity center line of the balancing weight 8, and compared with a triangular tower body with diagonal draw bars commonly used in the prior art, the tower body has stronger bearing capacity, more stable gravity center and more safety and reliability in the use process. The four bottom corners of the tower body 7 are respectively provided with a bearing 10, the tower body 7 can slide relative to the base 2 through the bearing 10, the tower body 7 and the base 2 are fastened through a fixing bolt, the tower body 7 and the base 2 are kept relatively motionless in the fastening state of the fixing bolt, a fixing bolt hole on the base 2 is an elongated hole 18, the length of the elongated hole 18 is not less than 1 meter, enough space is reserved for mounting and dismounting a pump hanger, a screw sleeve 11 is fixedly connected on the base 2 at one end far away from a well mouth, a screw rod 13 is screwed in the screw sleeve 11, one end of the screw rod 13 is connected with the tower body 7, the screw rod 13 can rotate relative to the tower body 7, but the tower body 7 limits the axial displacement of the screw rod 13, the axial movement of the screw rod 13 is performed synchronously with the tower body 7, a rotary table 12 for rotating the screw rod 13 is arranged at the other end of the screw rod 13, the screw rod 13 can pull, furthermore, the tower body 7 abdicating function is realized, it should be noted that before moving the machine and abdicating, the fixing bolt for connecting the tower body 7 and the base 2 is loosened, but is not taken down, the fixing bolt slides in the elongated hole 18 of the base 2, so as to guide the movement of the tower body 7, prevent the tower body 7 from sliding and deviating, facilitate the reset of the tower body 7, and enable the moving machine of the tower body 7 to abdicate in a controllable range.

The speed reducing mechanism 5 is a planetary gear speed reducing mechanism, the planetary gear speed reducing mechanism is positioned in the roller 9, a high-speed input shaft 17 of the planetary gear speed reducing mechanism is positioned in the center of the roller 9, a low-speed output shaft of the planetary gear speed reducing mechanism is the roller 9, an output shaft of the motor 4 is connected with the high-speed input shaft 17 through a coupler, and two ends of the roller 9 are provided with dustproof sealing covers; the utility model discloses with 5 inbuilt in cylinder 9 of reduction gears, to

cylinder

9 and 5 integrations of reduction gears together, cylinder 9 both transmits power and governing speed to simplified equipment structure, high-speed input shaft 17 on install electromagnetic brake ware, can realize stopping at any point, the convenient operation of changing the packing.

Planetary gear reduction mechanisms are a type of reduction mechanism commonly used in the mechanical field, and only one of the common structures is briefly described herein as an example: as shown in fig. 5, the planetary gear speed reducing mechanism includes a sun gear 16 and planetary gears 14, the sun gear 16 is mounted on a high-speed input shaft 17, the planetary gears 14 are fixedly mounted on a carrier 15, the carrier 15 is fixed, and an inner ring gear is provided inside the drum 9.

The utility model discloses with 5 built-in cylinder 9 of reduction gears, have two aspects advantages: on one hand, the speed reducing mechanism 5 is accommodated in the closed space in the roller 9, so that the damage of natural environments such as sand blown by the wind, rain, sunlight and the like to the speed reducing mechanism 5 can be avoided, the service life and the maintenance period of the speed reducing mechanism 5 are prolonged, and the running stability of equipment is improved; on the other hand, compared with the belt transmission speed reducing mechanism in the prior art, the planetary gear speed reducing mechanism has the characteristics of more stable operation, higher motion precision and larger bearing torque. Therefore, compared with the prior art, the utility model discloses there is obvious superiority.

It should be noted that, before the operation of the prior belt friction type walking-beam-free pumping unit, when the load of the wellhead is discharged, the matching of a crane is needed, the crane firstly lifts the counterweight block 8 to a certain height, when the counterweight block 8 is lifted, the load of the wellhead such as a polished rod, a sucker rod and the like descends, a rope hanger blocking card is installed at the wellhead, the blocking card acts between the wellhead and the rope hanger, the connecting point of the belt 6 of the pumping unit and the rope hanger is disassembled, and the whole load of the wellhead is applied to the rope hanger blocking card, therefore, the matching of the crane is needed before each operation, the calling of the crane needs certain waiting time and use cost, and has certain potential safety hazard, which is not beneficial to improving the working efficiency, in order to overcome the above problems, the utility model is characterized in that the winch 3 is installed on the platform, the winch 3 is connected with the counterweight block 8 through a steel wire rope, before the operation, the counterweight block, all wellhead loads on the oil pumping unit are transferred to the rope hanger blocking clamp, then the hoist 3 transfers the balancing weight 8, a special crane is not needed to arrive on the ground to help unloading the loads, the cost of using the crane is saved, and potential safety hazards in the using process of the crane are also avoided.

The coupling is a drum-shaped tooth coupling, different from a common flange coupling, the drum-shaped tooth coupling has the axial deviation compensation capability in the radial direction, the axial direction and the angular direction, has the advantages of compact structure, small turning radius, large bearing capacity, high transmission efficiency, low noise, long maintenance period and the like, and is particularly suitable for complex use conditions of a non-beam pumping unit. The coupling overcoat has the guard shield, and the invasion of sand blown by the wind can be avoided to the guard shield, does benefit to the life who prolongs the coupling.

In order to fully ensure that the screw rod 13 and the screw sleeve 11 deform or are not cracked in the using process, the screw rod 13 and the screw sleeve 11 are both made of No. 45 steel and are subjected to quenching treatment.

Claims

1. A movable machine abdicating walking-beam-free oil pumping machine comprises a base (2), a tower body (7) and a driving mechanism, wherein the base (2) is installed on a foundation (1) of a ground concrete structure through an anchoring bolt, the tower body (7) is installed on the base (2), the driving mechanism is installed on a platform at the top of the tower body (7), the driving mechanism comprises a motor (4), a speed reducing mechanism (5), a roller (9), a belt (6) and a balancing weight (8), two ends of the belt (6) are respectively connected with the balancing weight (8) and a rope hanger of the oil pumping machine, the belt (6) surrounds the roller (9) from the upper side of the roller (9), the motor (4) drives the roller (9) to rotate through the speed reducing mechanism (5), the rope hanger and the balancing weight (8) at two ends of the belt (6) are driven by the belt (6) to move up and down through the rotation of the speed reducing mechanism (5), thereby realize the oil pumping action of beam-pumping unit, its characterized in that: the tower body (7) is of a frame structure with four upright posts, bearings (10) are respectively mounted at four bottom corners of the tower body (7), the tower body (7) can slide relative to the base (2) through the bearings (10), the tower body (7) and the base (2) are fastened through fixing bolts, a fixing bolt hole in the base (2) is an elongated hole (18), a screw sleeve (11) is fixedly connected to the base (2) at one end far away from a well mouth, a screw rod (13) is screwed in the screw sleeve (11), one end of the screw rod (13) is connected with the tower body (7), and a rotary disc (12) for rotating the screw rod (13) is mounted at the other end of the screw rod (13); the speed reducing mechanism (5) is a planetary gear speed reducing mechanism, the planetary gear speed reducing mechanism is positioned in the roller (9), a high-speed input shaft (17) of the planetary gear speed reducing mechanism is positioned in the center of the roller (9), a low-speed output shaft of the planetary gear speed reducing mechanism is the roller (9), an output shaft of the motor (4) is connected with the high-speed input shaft (17) through a coupler, and two ends of the roller (9) are provided with dustproof sealing covers; the platform on install hoist engine (3), hoist engine (3) are connected with balancing weight (8) through wire rope.

2. The walking-beam-free pumping unit capable of moving for concessional purposes according to claim 1, wherein: the length of the long hole (18) is not less than 1 meter.

3. The walking-beam-free pumping unit capable of moving for concessional purposes according to claim 1, wherein: the coupler is a drum coupler, and a protective cover is sleeved outside the coupler.

4. The walking-beam-free pumping unit capable of moving for concessional purposes according to claim 1, wherein: the thread sleeve (11) and the screw rod (13) are both made of No. 45 steel and are subjected to quenching treatment.