Balanced beam-pumping unit with adjustable crank

Abstract

The utility model relates to the technical field of pumping units, and discloses an adjustable crank balance type beam-pumping unit, which comprises an equipment main body, a crank mechanism and a connecting rod mechanism, the equipment main body comprises a bottom plate, a driving motor, a support frame, a cross beam and a horse head, the top end of the bottom plate is fixedly connected with a speed reducer, the crank mechanism comprises a mounting plate, and the mounting plate is fixedly connected with the support frame. The side face of the mounting plate is fixedly connected with an output shaft of the speed reducer, a sliding groove is formed in the side face of the mounting plate, the side face of the sliding groove is movably sleeved with a threaded rod, the side face of the threaded rod is in threaded connection with a sliding block, and the side face of the sliding block is movably sleeved with the bottom end of the connecting rod mechanism through a pin. The threaded rod is rotated according to use requirements to drive the sliding block to slide along the sliding groove through the threads, so that the distance between the bottom of the connecting rod mechanism and the output shaft of the speed reducer is adjusted, the swing amplitude of the cross beam is adjusted, and the flexibility of equipment is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to pumping unit technical field more particularly to adjustable crank balance type beam pumping unit. BACKGROUND

[0002] Beam pumping unit is one of the main pumping unit types used in oil field at present, mainly by horse head - beam - connecting rod - crank mechanism, reduction gearbox, power equipment and auxiliary equipment four parts, when working, the rotation of motor becomes the up-down movement of horse head through speed changer, crank connecting rod mechanism, horse head drives downhole beam pumping unit's plunger to make up-down movement through polished rod, pumping rod, thereby continuously pumping the crude oil in wellbore.

[0003] Prior art deficiencies: the crank and connecting rod connection of the existing beam pumping unit are mostly fixed structure, the up-down swing amplitude of horse head is fixedly unchanged when driving through crank and connecting rod in use process, therefore the stroke of pumping cannot be adjusted according to use demand, and the flexibility of pumping unit is poor. UTILITY MODEL CONTENT

[0004] In order to overcome the above-mentioned defects of the prior art, the utility model provides a adjustable crank balance type beam pumping unit to solve the problems in the above background art.

[0005] In order to achieve the above-mentioned purpose, the utility model provides the following technical scheme: a adjustable crank balance type beam pumping unit, including equipment main body, still including: crank mechanism and connecting rod mechanism, the side surface of equipment main body is fixedly connected with the side surface of crank mechanism, the bottom end of connecting rod mechanism is movably sleeved with the side surface of crank mechanism, the top end of connecting rod mechanism is movably sleeved with the bottom end of equipment main body, the equipment main body includes bottom plate, the top end of bottom plate is fixedly connected with driving motor, the top end of bottom plate is fixedly connected with support frame, the top end of support frame is movably sleeved with crossbeam through pin, the side surface of crossbeam is equipped with horse head, the top end of bottom plate is fixedly connected with speed reducer, the output shaft of driving motor is connected with the input shaft of speed reducer through transmission belt, the crank mechanism includes mounting plate, the side surface of mounting plate is fixedly connected with the output shaft of speed reducer, the side surface of mounting plate is equipped with sliding slot, the side surface of sliding slot is movably sleeved with threaded rod, the side surface of threaded rod is screw connected with sliding block, the side surface of sliding block is movably sleeved with the bottom end of connecting rod mechanism, the top end of connecting rod mechanism is movably sleeved with the bottom end of crossbeam through pin.

[0006] Further, the sliding block and sliding slot are T-shaped structure, and the side surface of sliding slot is movably connected with the side surface of sliding block.

[0007] Further, the side inner wall of the mounting plate movably sleeves with a mounting shaft, the side of the mounting shaft fixedly sleeves with a worm, the side of the threaded rod fixedly sleeves with a worm wheel, and the bottom end of the worm wheel is engaged with the top end of the worm.

[0008] Further, the side of the mounting shaft is provided with a six-rib clamping groove, the side of the mounting shaft is threadedly connected with a fastening nut, and the side of the mounting shaft movably connects with an anti-skid pad, and the anti-skid pad is located between the side of the mounting plate and the side of the fastening nut.

[0009] Further, the connecting rod mechanism comprises a connecting rod body, the top end of the connecting rod body is fixedly connected with a connecting head, the top end of the connecting head movably sleeves with a pin and the bottom end of the cross beam, the side inner wall of the connecting rod body is threadedly connected with a threaded shaft, the bottom end of the threaded shaft is fixedly connected with a clamping block, the bottom end of the clamping block movably sleeves with a connecting seat, and the side of the connecting seat movably sleeves with a pin and the side of the sliding block.

[0010] Further, the side of the threaded shaft fixedly sleeves with a clamping block, the side of the threaded shaft is threadedly connected with a fixed nut, and the bottom end of the connecting rod body is fixedly connected with an anti-skid seat.

[0011] Further, the top end of the mounting plate is fixedly connected with a counterweight through bolts.

[0012] Further, the side of the mounting plate is provided with a scale corresponding to the side of the sliding groove, and the side of the sliding block is provided with a mark line corresponding to the position of the scale.

[0013] The technical effects and advantages of the present application are as follows:

[0014] 1. According to the use requirement, the threaded rod is rotated to drive the sliding block to slide along the sliding groove, so as to adjust the distance between the bottom of the connecting rod mechanism and the output shaft of the speed reducer, the driving motor is operated to drive the speed reducer to rotate through the transmission belt, so as to drive the mounting plate to rotate along the output shaft of the speed reducer, and the bottom of the connecting rod mechanism is moved up and down while rotating along the side pin of the sliding block, so as to drive the cross beam to reciprocatingly rotate along the top pin of the supporting frame, and the distance between the bottom of the connecting rod mechanism and the output shaft of the speed reducer is adjusted, so as to adjust the swing amplitude of the cross beam, and the flexibility of the equipment is improved.

[0015] 2. The mounting plate is rotated to keep horizontal, the fixed nut is loosened, the wrench is clamped on the clamping block to drive the threaded shaft to rotate, the connecting rod body is moved up and down through the thread, the cross beam is rotated along the top pin of the supporting frame, the cross beam is kept horizontal, the up and down swing amplitudes of the cross beam are the same, and the stability of the equipment is improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1The whole structure schematic view of the utility model is shown in the figure.

[0017] Figure 2 The crank mechanism structure schematic view of the utility model is shown in the figure.

[0018] Figure 3 The utility model is a kind of adjustable crank balance type beam pumping unit. Figure 2 A structure schematic view is shown in the figure.

[0019] Figure 4 The installation plate internal structure schematic view of the utility model is shown in the figure.

[0020] Figure 5 The connecting rod mechanism structure schematic view of the utility model is shown in the figure.

[0021] The figure mark is: 1, equipment main body;101, bottom plate;102, driving motor;103, support frame;104, crossbeam;105, speed reducer;2, crank mechanism;201, installation plate;202, threaded rod;203, counterweight;204, sliding slot;205, mounting shaft;206, sliding block;207, worm wheel;208, worm;209, six edge clamping groove;210, fastening nut;211, antiskid pad;3, connecting rod mechanism;301, connecting rod main body;302, connecting seat;303, connecting head;304, antiskid seat;305, threaded shaft;306, fixed nut;307, clamping block. Specific implementation

[0022] The technical scheme in the utility model will be described clearly and completely in the figure in the utility model, and in addition, the form of each structure recorded in the following embodiment is only example, a kind of adjustable crank balance type beam pumping unit involved in the utility model is not limited to each structure recorded in the following embodiment, all other embodiments obtained by the ordinary skill in the art without making creative labor belong to the range of protection of the utility model.

[0023] Refer to Figures 1 to 5The utility model provides a kind of adjustable crank balance type beam pumping unit, including equipment main body 1, still include: crank mechanism 2 and connecting rod mechanism 3, the side surface of equipment main body 1 is fixedly connected with the side surface of crank mechanism 2, the bottom end of connecting rod mechanism 3 is movably sleeved with the side surface of crank mechanism 2, the top end of connecting rod mechanism 3 is movably sleeved with the bottom end of equipment main body 1, equipment main body 1 includes bottom plate 101, the top end of bottom plate 101 is fixedly connected with driving motor 102, the top end of bottom plate 101 is fixedly connected with support frame 103, support frame 103 is movably sleeved with crossbeam 104 at the top end by pin, the side surface of crossbeam 104 is equipped with horse head, the top end of bottom plate 101 is fixedly connected with speed reducer 105, the output shaft of driving motor 102 is connected with the input shaft of speed reducer 105 by transmission belt, crank mechanism 2 includes mounting plate 201, the side surface of mounting plate 201 is fixedly connected with the output shaft of speed reducer 105, the side surface of mounting plate 201 is equipped with sliding slot 204, sliding slot 204 is movably sleeved with threaded rod 202 on the side surface, the side surface of threaded rod 202 is threadedly connected with sliding block 206, the side surface of sliding block 206 is movably sleeved with the bottom end of connecting rod mechanism 3 by pin, the top end of connecting rod mechanism 3 is movably sleeved with the bottom end of crossbeam 104 by pin, according to the distance between the bottom of connecting rod mechanism 3 and the output shaft of speed reducer 105 is adjusted by rotating threaded rod 202 by thread and sliding block 206 along sliding slot 204, when equipment runs, driving motor 102 runs and drives speed reducer 105 to rotate by transmission belt, so as to drive mounting plate 201 to rotate along the output shaft of speed reducer 105, make the bottom of connecting rod mechanism 3 move up and down while rotating along the side pin of sliding block 206, make connecting rod mechanism 3 drive crossbeam 104 to reciprocatingly rotate along the pin of the top end of support frame 103, because the distance between the bottom of connecting rod mechanism 3 and the output shaft of speed reducer 105 is adjusted, the swing amplitude of crossbeam 104 is adjusted.

[0024] Wherein, sliding block 206 and sliding slot 204 are all T-shaped structure, the side surface of sliding slot 204 is movably connected with the side surface of sliding block 206.

[0025] Wherein, the side surface inner wall of mounting plate 201 is movably sleeved with mounting shaft 205, mounting shaft 205 is fixedly sleeved with worm 208 on the side surface, threaded rod 202 is fixedly sleeved with worm gear 207 on the side surface, the bottom end of worm gear 207 and the top end of worm 208 are mutually engaged, drive worm 208 to rotate by rotating mounting shaft 205, drive threaded rod 202 to rotate by worm 208 and worm gear 207 mutually engaging, and worm gear 207 can drive worm 208 to rotate by worm 208, worm gear 207 cannot drive worm 208 to rotate characteristics to fix threaded rod 202.

[0026] The side of the mounting shaft 205 is provided with a six-sided clamping groove 209, the side of the mounting shaft 205 is threadedly connected with a fastening nut 210, and the side of the mounting shaft 205 is movably connected with an anti-skid pad 211, and the anti-skid pad 211 is located between the side of the mounting plate 201 and the side of the fastening nut 210. When the crank mechanism 2 needs to be adjusted, the fastening nut 210 is loosened, the six-sided wrench is inserted into the six-sided clamping groove 209 to drive the mounting shaft 205 to rotate, after adjustment, the fastening nut 210 is tightened to make the fastening nut 210 tightly adhere to the side of the mounting plate 201 to fix the mounting shaft 205, and the six-sided wrench is removed.

[0027] The connecting rod mechanism 3 comprises a connecting rod body 301, a connecting head 303 fixedly connected to the top end of the connecting rod body 301, the top end of the connecting head 303 movably sleeved with the bottom end of the cross beam 104 through a pin, a threaded shaft 305 threadedly connected to the side inner wall of the connecting rod body 301, a clamping block 307 fixedly connected to the bottom end of the threaded shaft 305, and a connecting seat 302 movably sleeved with the side of the sliding block 206. According to the use requirement, after the crank mechanism 2 is adjusted, the mounting plate 201 is rotated to keep it horizontal, the threaded shaft 305 is rotated to push the connecting rod body 301 up and down, so that the cross beam 104 also keeps horizontal, thereby ensuring that the amplitude of the bottom plate 101 is the same when it swings up and down, and ensuring the stability of the equipment.

[0028] The side of the threaded shaft 305 is movably sleeved with the clamping block 307, the side of the threaded shaft 305 is threadedly connected with a fixed nut 306, and the bottom end of the connecting rod body 301 is fixedly connected with an anti-skid seat 304. When the connecting rod mechanism 3 needs to be adjusted, the fixed nut 306 is loosened, the wrench is clamped on the clamping block 307 to facilitate the rotation of the threaded shaft 305, after adjustment, the fixed nut 306 is tightened to make the fixed nut 306 tightly adhere to the bottom of the anti-skid seat 304 to fix the threaded shaft 305.

[0029] The top end of the mounting plate 201 is fixedly connected with a counterweight 203 through bolts.

[0030] The side of the mounting plate 201 is provided with a scale corresponding to the side of the sliding groove 204, and the side of the sliding block 206 is provided with a mark line corresponding to the position of the scale. The position of the mark line on the scale facilitates determination of the amplitude of the up and down swing of the cross beam 104.

[0031] The working principle of the utility model is: according to the use demand, the fastening nut 210 is loosened, the six-pronged spanner is inserted into the six-pronged clamping groove 209 inside to drive the installation shaft 205 to rotate, the worm 208 and the worm wheel 207 are mutually engaged to drive the threaded rod 202 to rotate, the sliding block 206 is driven to slide along the sliding groove 204 through the thread, thereby adjusting the distance between the bottom of the connecting rod mechanism 3 and the output shaft of the speed reducer 105, after the adjustment is completed, the fastening nut 210 is tightened to make the fastening nut 210 closely adhere to the side surface of the mounting plate 201 to fix the installation shaft 205, and the six-pronged spanner is removed; the mounting plate 201 is rotated to keep it horizontal, the fixed nut 306 is loosened, the spanner is clamped on the clamping block 307 to drive the threaded shaft 305 to rotate, the connecting rod main body 301 is driven to move up and down through the thread, thereby pushing the cross beam 104 to rotate along the top pin of the support frame 103, making the cross beam 104 keep horizontal, thereby making the up and down swing amplitude of the cross beam 104 same, then the fixed nut 306 is tightened to make the fixed nut 306 closely adhere to the bottom of the antiskid base 304 to fix the threaded shaft 305, the equipment running drive motor 102 runs to drive the speed reducer 105 to rotate through the transmission belt, thereby driving the mounting plate 201 to rotate along the output shaft of the speed reducer 105, making the bottom of the connecting rod mechanism 3 rotate along the side pin of the sliding block 206 while moving up and down, making the connecting rod mechanism 3 drive the cross beam 104 to reciprocatingly rotate along the pin at the top of the support frame 103.

[0032] The above only is the preferred embodiment of the utility model, and does not limit the utility model, and any modification, equivalent replacement, improvement, etc. within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. An adjustable crank counterbalanced type beam pumping unit comprising a device body (1), characterized in that, Also includes: Crank mechanism (2) and connecting rod mechanism (3), the side of the device body (1) and the side of the crank mechanism (2) are fixedly connected, the bottom end of the connecting rod mechanism (3) is movably sleeved with the side of the crank mechanism (2), the top end of the connecting rod mechanism (3) is movably sleeved with the bottom end of the device body (1), the device body (1) comprises a bottom plate (101), the top end of the bottom plate (101) is fixedly connected with a driving motor (102), the top end of the bottom plate (101) is fixedly connected with a support frame (103), the top end of the support frame (103) is movably sleeved with a cross beam (104) through a pin, the side of the cross beam (104) is provided with a horse head, the top end of the bottom plate (101) is fixedly connected with a speed reducer (105), the output shaft of the driving motor (102) is drivingly connected with the input shaft of the speed reducer (105) through a transmission belt, the crank mechanism (2) comprises a mounting plate (201), the side of the mounting plate (201) is fixedly connected with the output shaft of the speed reducer (105), the side of the mounting plate (201) is provided with a sliding groove (204), the side of the sliding groove (204) is movably sleeved with a threaded rod (202), the side of the threaded rod (202) is threadedly connected with a sliding block (206), the side of the sliding block (206) is movably sleeved with the bottom end of the connecting rod mechanism (3) through a pin, and the top end of the connecting rod mechanism (3) is movably sleeved with the bottom end of the cross beam (104) through a pin.

2. An adjustable crank counterbalance type beam pumping unit as claimed in claim 1, characterized in that: The sliding block (206) and the sliding groove (204) are both T-shaped structures, and the side of the sliding groove (204) is movably connected with the side of the sliding block (206).

3. An adjustable crank counterbalance type beam pumping unit as recited in claim 1 wherein: The side of the mounting plate (201) is movably sleeved with a mounting shaft (205), the side of the mounting shaft (205) is fixedly sleeved with a worm (208), the side of the threaded rod (202) is fixedly sleeved with a worm wheel (207), and the bottom end of the worm wheel (207) is meshed with the top end of the worm (208).

4. An adjustable crank counterbalance type beam pumping unit as claimed in claim 3 wherein: The side of the mounting shaft (205) is provided with a six-rib clamping groove (209), the side of the mounting shaft (205) is threadedly connected with a fastening nut (210), the side of the mounting shaft (205) is movably connected with an anti-skid pad (211), and the anti-skid pad (211) is located between the side of the mounting plate (201) and the side of the fastening nut (210).

5. An adjustable crank counterbalance type beam pumping unit as recited in claim 1 wherein: The connecting rod mechanism (3) comprises a connecting rod body (301), the top end of the connecting rod body (301) is fixedly connected with a connecting head (303), the top end of the connecting head (303) is movably sleeved with the bottom end of the cross beam (104) through a pin, the side inner wall of the connecting rod body (301) is threadedly connected with a threaded shaft (305), the bottom end of the threaded shaft (305) is fixedly connected with a clamping block (307), the bottom end of the clamping block (307) is movably sleeved with a connecting seat (302), and the side of the connecting seat (302) is movably sleeved with the side of the sliding block (206) through a pin.

6. An adjustable crank counterbalance type beam pumping unit as claimed in claim 5 wherein: The side surface of the threaded shaft (305) is sleeved with a clamping block (307), the side surface of the threaded shaft (305) is threadedly connected with a fixed nut (306), and the bottom end of the connecting rod body (301) is fixedly connected with an antiskid base (304).

7. An adjustable crank counterbalance type beam pumping unit as recited in claim 1 wherein: The top end of the mounting plate (201) is fixedly connected with a counterweight (203) through bolts.

8. An adjustable crank counterbalance type beam pumping unit as recited in claim 1 wherein: The side surface of the mounting plate (201) is provided with a scale corresponding to the side surface of the sliding groove (204), and the side surface of the sliding block (206) is provided with a mark line corresponding to the position of the scale.

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