CN212389319U

CN212389319U - Anti-drop shifting device for balance block of pumping unit

Info

Publication number: CN212389319U
Application number: CN202021097565.3U
Authority: CN
Inventors: 李西江; 刘晓东; 谷凯; 王涛; 刘志萍; 杨帆; 王学东; 孟向明; 高伟; 侯丽莉
Original assignee: China Petroleum and Chemical Corp; Sinopec Shengli Oilfield Co Xianhe Oil Production Plant
Current assignee: China Petroleum and Chemical Corp; Sinopec Shengli Oilfield Co Xianhe Oil Production Plant
Priority date: 2020-06-15
Filing date: 2020-06-15
Publication date: 2021-01-22
Anticipated expiration: 2030-06-15

Abstract

The utility model discloses an anti-drop shifting device for a balance block of a pumping unit, which is provided with two fixed bases, wherein the two fixed bases are respectively arranged on cranks at two sides of the balance block of the pumping unit; the balance weight shifting assembly is provided with a support frame, a power shaft and a push rod, the power shaft and the push rod are both arranged in the support frame, and a worm in the power shaft is meshed with a worm wheel in a screw rod behind the push rod. The device integrates the functions of quick movement of the balance block, preset position positioning of the balance block and blocking of the balance block from falling off. The safe operation of the balance operation of the oil pumping unit is realized, and in the balance block adjusting operation, the safety of operators can be ensured even if the brake of the oil pumping unit is out of order due to the fact that the fixing base serves as the limiting device.

Description

Anti-drop shifting device for balance block of pumping unit

Technical Field

The utility model relates to an adjusting device of oil industry beam-pumping unit balancing piece specifically is beam-pumping unit balancing piece anticreep shifter.

Background

In the development and production of oil extraction in oil fields, the balance adjustment of the oil pumping unit is the main workload of daily work, and the aims of energy conservation, electricity conservation and safe production can be achieved. Because beam-pumping unit does not have the design and the device that prevent the balancing piece and drop, traditional balancing piece adjustment operation in case the brake is not hard up appears, the balancing piece can lose control, from the landing on the beam-pumping unit crank, causes the damage of operating personnel injures and deaths or equipment.

At present, the most common method for balancing a beam pumping unit in a production field is to stop a well firstly and tension a brake after power failure; cleaning a crank groove in the crank surface where a balancing block moves; calculating the moving distance of a balance block according to the uplink and downlink currents of the beam-pumping unit and a balance weight calculation method, and measuring a preset position of the balance block to be moved on a crank; loosening the balance block locking screw and the balance block fixing screw by using a spanner and a big hammer; and the balance weight is pried by a pry bar to move to a preset position. Then the bolt of the balance block anti-skid locking block is installed, the balance block of the pumping unit is corrected, and then the fixing screw and the bolt of the anti-skid locking block are fastened, and the pumping unit is started. In the operation of prying the balance block to move, because the pumping unit is not provided with a device for preventing the balance block from falling off, the other is the uneven-speed moving factor of the prying bar prying the balance block, and the accident that the balance block slips off from the crank is easily caused. Therefore, the problem needs to be solved, and the safety of operators and production equipment is ensured.

At present, the production site also has the following adjusting devices of the balance weight of the oil pumping unit, but the problem that the balance weight is easy to slip from a crank cannot be solved.

There is a beam-pumping unit balancing piece hydraulic pressure adjusting device at present, patent application no: 201920365088.5, the device comprises a ground hydraulic pump, a working face hydraulic cylinder, a connecting ring and a heightening block, the ground hydraulic pump is connected with the working face hydraulic cylinder through a hydraulic pipeline, the heightening block is supported below the body of the balance block at the position of the balance block fixing bolt, one end of the connecting ring is sleeved on the upper part of the balance block fixing bolt or outside the nut, the other end of the connecting ring is connected with the heightening block, and the front end of the piston rod of the working face hydraulic cylinder is connected with the rear end of the heightening block. The utility model avoids the occurrence of high-altitude falling accidents easily caused by the fact that an operator stands on a crank 2 meters away from the ground to swing a sledge hammer to hammer and pry a balance block; the balance weight is prevented from being shaken by two persons, one person uses the crowbar to move the balance weight, the number of operators is reduced, the labor intensity of workers is reduced, the operation time is shortened, and the application effect and the application value are good.

The following drawbacks still exist: the hydraulic cylinder of the working face of the device has a certain length, and cannot be used when the length of the working face is smaller than that of the hydraulic cylinder due to the limitation of the length of the working face.

A beam-pumping unit balancing piece adjustment tool and adjustable balancing piece subassembly: patent application No.: CN201920338734, this subassembly includes the balancing piece, fixing bolt and the beam-pumping unit balancing piece adjusting tool who is used for adjusting the balancing piece, beam-pumping unit balancing piece adjusting tool is including adjusting the head and being used for driving the solid wrench who adjusts the head action, adjust the head including be used for with the adjusting gear of crank tooth meshing with be in adjusting gear axial side be used for with the spanner stop the complex spanner cooperation section, solid wrench includes spanner body and socket head, be equipped with the crank on the spanner body, the crank swing assembly is on spanner body, the extending direction of the swing axis of crank is perpendicular with the extending direction of spanner body, the crank has the expansion position that is on a parallel with the adjusting gear axis and the position of packing up of perpendicular to adjusting gear axis. The utility model provides a current balancing weight adjusting tool of beam-pumping unit complex operation, the problem of inefficiency when passing through the beam-pumping unit connecting rod.

The following drawbacks still exist: the device adopts the gear as the driving force and does not have the labor-saving property of the worm and gear.

Moving device of beam-pumping unit balancing piece: patent application No.: CN201821899686.2, the mobile device includes fixed bolster, connecting rod and removal gear. When moving the balancing piece, can make the removal gear move along rack extending direction on articulate rack through rotating the connecting rod, because the connecting rod passes the second through-hole of fixed part, consequently, only need rotate the connecting rod and can make the connecting rod produce forward thrust in second through-hole department, and then drive the push pedal of fixed bolster and promote the balancing piece. Therefore, on one hand, the thrust for moving the fixed support can be provided by rotating the connecting rod in the second through hole, and the labor is saved compared with the manual thrust; on the other hand, the position of the connecting rod does not need to be adjusted in the process of pushing the balance block, so that the whole process is time-saving and labor-saving.

The following drawbacks still exist: the device adopts the gear as the driving force, and does not have the characteristic of more labor saving of the worm and gear.

Pumping unit balancing piece shifter: patent application No.: CN201420704182.6, the device includes the power spare, the power spare is fixed in on the fixing base, the fixed plate is placed to the fixing base below, the baffle at fixing base both ends is being pushed against at power spare both ends, power spare one end is connected with the connector, the connector is passed to the bearing axle middle part, the arm-drag is connected respectively at the both ends of bearing axle, the arm-drag inboard is provided with tooth and tooth piece, be provided with the hole that can pass the bearing axle on the tooth piece, be provided with respectively on two arm-drag and prevent opening and detain, be provided with the hole that can alternate T type bolt on the fixed plate. The utility model discloses simple structure, simple to operate is durable, the flexible operation, and small portable.

The following drawbacks still exist: the device adopts the hydraulic cylinder as driving force, is limited by the working length on the crank surface, has certain limitation, and has the design safety defect because of no anti-slip and anti-drop auxiliary device, and once a brake is out of order in the operation process, the balance block can easily slip off to cause an accident.

Disclosure of Invention

The utility model aims at providing a beam-pumping unit balancing piece anticreep gearshift effectively prevents the balancing piece slippage above the crank of beam-pumping unit, makes things convenient for the regulation of balancing piece to shift simultaneously, under the prerequisite of guaranteeing safety in production, improves the work efficiency that the balancing piece was adjusted.

The technical solution of the utility model is that:

the anti-drop shifting device for the pumping unit balance block is provided with two fixed bases which are respectively arranged on cranks at two sides of the pumping unit balance block, a balance block shifting assembly is fixed on one fixed base, and the other fixed base is arranged at a preset position of the pumping unit balance block in the crank; the balance weight shifting assembly is provided with a support frame, a power shaft and a push rod, the power shaft and the push rod are both arranged in the support frame, and a worm in the power shaft is meshed with a worm wheel in a screw rod behind the push rod.

The support frame is internally provided with a fixed base bolt mounting hole, a power shaft mounting lug, a screw rod mounting hole, a fixed bolt and a fixed clamping groove, the fixed bolt and the fixed clamping groove are arranged on the bottom surface of the support frame, and the fixed bolts are positioned on two sides of the fixed base bolt mounting hole and are fixed in the fixed clamping groove; the power shaft is arranged in the power shaft mounting lugs at two sides of the support frame, and the screw rod mounting holes are provided with two screw rods which are all arranged in the frame plate of the support frame below the power shaft mounting lugs.

The screw rod behind the push rod comprises a first screw rod and a second screw rod, and the first screw rod and the second screw rod are fixed on two sides of the rear end of the push rod and are respectively in threaded connection with a central hole of the worm wheel; the first screw rod and the second screw rod are respectively arranged in screw rod mounting holes of the support frame.

Two sections of worms are arranged in the power shaft between the power shaft mounting lugs and are respectively meshed with worm wheels in the first screw rod and the second screw rod.

Rocking handle plugs are arranged at two ends of the power shaft and can be inserted into the rocking handles.

The fixing base is provided with an upper clamping plate, a lower clamping plate and a clamping plate tensioning bolt, the lower clamping plate is welded at the lower end of the clamping plate tensioning bolt, a bolt mounting hole is formed in the middle of the plate body of the upper clamping plate, the clamping plate tensioning bolt can be installed in the bolt mounting hole, a nut is installed on the upper portion of the clamping plate tensioning bolt, and inserting holes are formed in the upper clamping plate on two sides of the bolt mounting hole, and fixing bolts can be inserted into the inserting holes.

Reverse clamping teeth are arranged on the lower end face of the upper clamping plate or on two sides of the lower end face and the upper end face of the lower clamping plate, and the tooth surfaces of the reverse clamping teeth face the direction opposite to the propelling direction of the push rod; the hole wall of the jack is also fixed with a spring buckle.

The width of the lower clamping plate is larger than the width of the upper part of the crank groove in the crank; the distance between the jacks in the upper clamping plate is equal to the distance between the fixing bolts in the supporting frame.

The two sides of the lower end face of the upper clamping plate are respectively provided with a crank rack and reverse clamping teeth, the upper end face of the lower clamping plate is provided with the reverse clamping teeth, and the tooth surface orientation of the reverse clamping teeth is opposite to the propelling direction of the push rod.

The crank rack is meshed with the rack on one side of the upper end face of the crank.

Compared with the prior art, the utility model has the advantages of it is following or beneficial effect:

the utility model discloses installed two unable adjustment bases in the crank groove of beam-pumping unit, a unable adjustment base installation balancing piece aversion assembly, another unable adjustment base can be fixed in the preconditioning position of beam-pumping unit balancing piece, uses as stopper or stop device, and two unable adjustment bases can exchange the use in addition, can follow two directions and adjust the balancing piece. The utility model provides a worm wheel and worm have been matchd in the balancing piece aversion assembly, through the rotation of worm wheel and worm, drive the lead screw and promote the beam-pumping unit balancing piece forward and move, it promotes the balancing piece and removes to use spiral propulsion's theory of operation, rather than prying, changes the beam-pumping unit balancing piece and is promoted the moving mode by prying the moving mode, has realized light steady, the quick travel of balancing piece. On the removal of beam-pumping unit balancing piece itself just steadily and safe basis, the utility model discloses add a unable adjustment base again, fix spacing function on the crank preset position, can control the balancing piece all the time and can only remove according to the adjustment needs, thoroughly stopped beam-pumping unit balance adjusting in-process, beam-pumping unit balancing piece from the risk of landing on the crank, realized the balancing piece safely and removed, stopped the purpose of landing completely. To sum up, the utility model discloses a show the effect and lie in:

1. the device integrates the functions of quick movement of the balance block, preset position positioning of the balance block and blocking of the balance block from falling off.

2. The safe operation of the balance operation of the oil pumping unit is realized, and in the balance block adjusting operation, the safety of operators can be ensured even if the brake of the oil pumping unit is out of order due to the fact that the fixing base serves as the limiting device.

3. The safety of ground matching personnel is also ensured by using the fixed base as a limiting device at the preset position of the balance block of the pumping unit. The balance block shifting assembly can be installed on the two fixing bases in a replaceable mode, and therefore adjustment of the balance block of the oil pumping unit is greatly facilitated. After the balance adjustment work of the pumping unit is finished, the two fixed bases do not need to be disassembled, can be arranged on a crank of the pumping unit and are reserved for next balance adjustment operation.

4. The operation station of the balance adjustment operator is changed from the crank station to the crank outer station, so that the safety of the operator is ensured.

5. The device adopts a split design, the balance block shifting assembly can be conveniently arranged on the fixed base, and the device has the advantages of light weight and simple and convenient operation.

6. The fixing base of the device can be always arranged on the crank of the pumping unit, and can also play a role in preventing the balance block from falling off in the daily operation of the pumping unit.

7. The spring buckle is fixed in the jack of unable adjustment base, and the fixing bolt in the balancing piece aversion assembly can realize quick butt joint and insert the back more firm with the jack.

8. The device does not need to use other power equipment, and the manual work adopts the side face to rotate and shake the mode, thereby being safe and labor-saving.

9. This device adopts two lead screws to promote, has guaranteed the steady atress that the pumping unit balancing piece promotes formula aversion, has avoided the easy drawback of squinting of balancing piece among the pumping unit balancing process.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is the working principle and installation schematic diagram of the present invention.

FIG. 2 is a front view of the weight shifting assembly of FIG. 1.

Fig. 3 is a top view of fig. 2.

Fig. 4 is a front view of a schematic structural diagram of an embodiment of the middle fixing base according to the present invention.

Fig. 5 is a bottom view of fig. 4.

Fig. 6 is a front view of a schematic structural diagram of a middle fixing base according to an embodiment of the present invention.

Fig. 7 is a bottom view of fig. 6.

Detailed Description

The following detailed description of the present invention, taken in conjunction with the accompanying drawings, is not intended to limit the scope of the invention. It is only following do the utility model discloses a preferred embodiment, other applications the utility model discloses the equivalent change that reachs all should belong to the utility model discloses a protection scope.

Referring to fig. 1 to 7, the anti-drop shifting device for the pumping unit balance block is provided with two fixing bases 2, the two fixing bases 2 are respectively installed on cranks 9 on two sides of a pumping unit balance block 10, one fixing base 2 is provided with a balance block shifting assembly 1, and the other fixing base 2 is installed at a preset position of the pumping unit balance block 10 in the crank 9; the balance weight shifting assembly 1 is provided with a support frame 19, a power shaft and a push rod 11, wherein the power shaft and the push rod 11 are both arranged in the support frame 19, a worm 13 in the power shaft is meshed with a worm wheel 12 in a screw rod behind the push rod 11, the power shaft is rotated, and the push rod 11 and the screw rod behind the push rod can push the balance weight 10 of the pumping unit to move to a preset position.

On the basis of the first embodiment, the utility model discloses still have following embodiment:

the support frame 19 is internally provided with a fixed base bolt mounting hole 20, a power shaft mounting lug, a screw rod mounting hole, a fixed bolt 17 and a fixed clamping groove 18, the fixed bolt 17 and the fixed clamping groove 18 are both arranged on the bottom surface of the support frame 19, and the fixed bolts 17 are positioned on two sides of the fixed base bolt mounting hole 20 and are fixed in the fixed clamping groove 18; the power shafts are arranged in power shaft mounting lugs on two sides of the support frame 19, and the screw rod mounting holes are provided with two screw rods which are all arranged in a frame plate of the support frame 19 below the power shaft mounting lugs.

The screw rod behind the push rod 11 comprises a first screw rod 15 and a second screw rod 16, and the first screw rod 15 and the second screw rod 16 are fixed on two sides of the rear end of the push rod 11 and are respectively in threaded connection with a central hole of the worm wheel 12; the first screw rod 15 and the second screw rod 16 are respectively arranged in screw rod mounting holes of the support frame 19.

Two sections of worms 13 are arranged in the power shaft between the power shaft mounting lugs and are respectively meshed with worm wheels 12 in the first screw rod 15 and the second screw rod 16.

Rocking handle plugs 21 are arranged at two ends of the power shaft, and the rocking handle plugs 21 can be inserted into the rocking handle 14. The balance weight shifting assembly 1 can be conveniently installed and used between the two fixed bases 2, and of course, both ends of the power shaft can also be rotated by using a wrench or other tools.

The utility model provides a unable adjustment base 2 has two kinds of embodiments

Example one

Unable adjustment base 2 is equipped with punch holder 3, lower plate 5 and splint tie bolt 4, and the welding of lower plate 5 is at the lower extreme of splint tie bolt 4, and the plate body middle part of punch holder 3 is equipped with the bolt mounting hole, can pack into splint tie bolt 4 in this bolt mounting hole, and the upper portion mounting nut of splint tie bolt 4 is equipped with jack 6 in the punch holder 3 of bolt mounting hole both sides can insert fixing bolt 17 in the jack 6.

The lower end surface or both sides of the lower end surface of the upper clamping plate 3 and the upper end surface of the lower clamping plate 5 are provided with reverse clamping teeth 7, and the tooth surface of each reverse clamping tooth 7 faces to the direction opposite to the propelling direction of the push rod 11; the hole wall of the jack 6 is also fixed with a spring buckle, so that the fast butt joint of the jack 6 and the fixing bolt 7 can be realized, and the fixing bolt 17 is more stable in the jack.

The width of the lower clamping plate 5 is larger than the width of the upper part of the crank groove in the crank 9; the distance between the insertion holes 6 in the upper clamping plate 3 is equal to the distance between the fixing bolts 17 in the supporting frame 19.

Example two

The two sides of the lower end face of the upper clamping plate 3 are respectively provided with a crank rack 8 and a reverse clamping tooth 7, the upper end face of the lower clamping plate 5 is provided with the reverse clamping tooth 7, and the tooth surface of the reverse clamping tooth 7 faces to the direction opposite to the propelling direction of the push rod 11.

The crank rack 8 is meshed with a rack on one side of the upper end face of the crank 9, and other technical characteristics are the same as those of the first embodiment of the fixed base 2.

The use method of the device comprises the following steps:

1. when the device is used, the crank 9 of the oil pumping unit is stopped at a horizontal position, and the safety is ensured when the brake is powered off.

2. One of the fixed bases 2 is arranged on one side of the adjusting direction of the oil pumping machine balance weight 10 in the crank 9, the lower clamping plate 5 of the fixed base 2 penetrates through the crank groove of the crank 9 and is fixed at the preset position of the oil pumping machine balance weight 10 on the crank 9 to be used as a limiting device of the oil pumping machine balance weight 10.

3. Another fixed base 2 is arranged on the other side of the crank 9 and behind the balance weight 10 of the oil pumping unit; the balance weight shifting assembly 1 is installed in the fixed base 2, and the two fixing bolts 17 are inserted into the insertion holes 6 of the upper clamping plate 3 in the fixed base 2, so that the clamping plate tensioning bolts 4 pass through the bolt installation holes 20 of the support bracket 19. And (3) screwing and fixing the lower clamping plate 5, the upper clamping plate 3 and the balance weight displacement assembly 1 through the clamping plate tensioning bolt 4.

4. And (3) loosening the tension bolt of the balance weight 10 of the pumping unit, and removing the anti-skid locking block of the balance weight 10 of the pumping unit until the balance weight 10 of the pumping unit can be moved.

5. And installing a rocking handle 14, rotating the power shaft, pushing the pumping unit balance weight 10 to the other fixed base 2 fixed at the preset position, and adjusting the pumping unit balance weight 10 in place.

6. And installing an anti-skid locking block of the pumping unit balance block 10, and fastening a tension bolt of the pumping unit balance block 10 until the safety standard is met.

7. The balance weight shift assembly 1 is removed from the fixed base 2.

8. The fixed bases 2 can be completely removed or completely left on the crank 9, or only one fixed base 2 can be removed, and the other fixed base can still be used as a limiting device of the balance weight 10 of the pumping unit.

The embodiments described above are merely exemplary embodiments, but the present invention is not limited to these embodiments, and those skilled in the art can make modifications without departing from the spirit and teaching of the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and modifications can be made, and equivalents can be substituted for elements thereof. Any modification, equivalent replacement, improvement and the like made within the spirit and the concept of the present invention should be included in the protection scope of the present invention. The scope of protection is therefore not limited to the description above.

Claims

1. The anti-drop shifting device for the pumping unit balance block is provided with two fixing bases and is characterized in that the two fixing bases are respectively arranged on cranks on two sides of the pumping unit balance block, a balance block shifting assembly is fixed on one fixing base, and the other fixing base is arranged at a preset position of the pumping unit balance block in the crank; the balance weight shifting assembly is provided with a support frame, a power shaft and a push rod, the power shaft and the push rod are both arranged in the support frame, and a worm in the power shaft is meshed with a worm wheel in a screw rod behind the push rod.

2. The anti-drop and displacement device for the balance weight of the pumping unit as claimed in claim 1, wherein the support frame is provided with a fixing base bolt mounting hole, a power shaft mounting lug, a screw rod mounting hole, a fixing bolt and a fixing clamping groove, the fixing bolt and the fixing clamping groove are both arranged on the bottom surface of the support frame, and the fixing bolt is positioned at two sides of the fixing base bolt mounting hole and is fixed in the fixing clamping groove; the power shaft is arranged in the power shaft mounting lugs at two sides of the support frame, and the screw rod mounting holes are provided with two screw rods which are all arranged in the frame plate of the support frame below the power shaft mounting lugs.

3. The anti-drop shifting device for the balance weight of the pumping unit as claimed in claim 2, wherein the screw rod behind the push rod comprises a first screw rod and a second screw rod, and the first screw rod and the second screw rod are fixed on two sides of the rear end of the push rod and are respectively in threaded connection with the central hole of the worm wheel; the first screw rod and the second screw rod are respectively arranged in screw rod mounting holes of the support frame.

4. The anti-drop and displacement device for the balance weight of the pumping unit as claimed in claim 2, wherein two sections of worms are arranged in the power shaft between the power shaft mounting lugs and are respectively meshed with worm wheels in the first screw rod and the second screw rod.

5. The anti-drop and displacement device for the balance weight of the pumping unit as claimed in claim 1, 2 or 4, wherein the two ends of the power shaft are provided with rocking handle plugs, and the rocking handle plugs can be inserted into rocking handles.

6. The anti-drop and shifting device for the balance weight of the pumping unit as claimed in claim 2, wherein the fixing base is provided with an upper clamping plate, a lower clamping plate and a clamping plate tensioning bolt, the lower clamping plate is welded at the lower end of the clamping plate tensioning bolt, the middle part of the plate body of the upper clamping plate is provided with a bolt mounting hole, the clamping plate tensioning bolt can be installed in the bolt mounting hole, a nut is installed at the upper part of the clamping plate tensioning bolt, the upper clamping plate at two sides of the bolt mounting hole is provided with an insertion hole, and a fixing bolt can be inserted in.

7. The anti-drop shifting device for the balance weight of the pumping unit as claimed in claim 6, wherein the lower end surface or both sides of the lower end surface of the upper clamping plate and the upper end surface of the lower clamping plate are provided with reverse clamping teeth, and the tooth surfaces of the reverse clamping teeth face to the direction opposite to the propelling direction of the push rod; the hole wall of the jack is also fixed with a spring buckle.

8. The anti-drop and displacement device for the balance weight of the pumping unit as claimed in claim 6 or 7, wherein the width of the lower clamping plate is larger than the width of the upper part of the crank groove in the crank; the distance between the jacks in the upper clamping plate is equal to the distance between the fixing bolts in the supporting frame.

9. The anti-drop and displacement device for the balance weight of the pumping unit as claimed in claim 6, wherein the upper clamping plate is provided with a crank rack and a reverse clamping tooth on both sides of the lower end surface, and the lower clamping plate is provided with a reverse clamping tooth on the upper end surface, and the tooth surface of the reverse clamping tooth faces to the direction opposite to the pushing direction of the push rod.

10. The anti-dropping and shifting device for the balance weight of the pumping unit as claimed in claim 9, wherein the rack of the crank is engaged with the rack on one side of the upper end surface of the crank.