CN110202521B - Manual mechanical common-reinforcement dual-purpose puller - Google Patents
Manual mechanical common-reinforcement dual-purpose puller Download PDFInfo
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- CN110202521B CN110202521B CN201910457196.XA CN201910457196A CN110202521B CN 110202521 B CN110202521 B CN 110202521B CN 201910457196 A CN201910457196 A CN 201910457196A CN 110202521 B CN110202521 B CN 110202521B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
- B25B27/02—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same
Abstract
The invention relates to a manual mechanical ordinary-force-increasing dual-purpose puller. The problems that the existing puller cannot solve the field problem due to small tonnage or is large in tonnage, inconvenient and inflexible to use and needs a large working place are mainly solved. The method is characterized in that: a pressure-bearing base penetrates through the outer surface of the push nut, two sides of the pressure-bearing base are respectively connected with push rods through stud bolts, and the push rods on the two sides are respectively connected with one end of a pull rod; the other end of the pull rod, which is close to the pressure-bearing lead screw, is connected with an upper hole of the triangular base, a left lower side hole of the triangular base is connected with the pull piece through a stud, and a right lower side hole of the triangular base is connected with the pressure-bearing body through a cylindrical pin; the lower part of the pulling piece is connected with the joint through a stud bolt, the lower part of the joint is in threaded connection with a drag hook, and the stud bolt for connecting the pulling piece and the joint penetrates through a hole of the pressure bearing body; the cylindrical pin passes through the triangular base and the holes on the pressure-bearing body, and the threaded hole at the central part of the pressure-bearing body is in threaded connection with the pressure-bearing lead screw. The drawing device is convenient and flexible to use and is not limited by a large working space.
Description
Technical Field
The invention relates to the technical field of mechanical application, in particular to a manual mechanical ordinary-force-increasing dual-purpose puller.
Background
At present, a plurality of formed products are produced by a common drawing device, but the drawing force of most drawing devices is smaller (1 ton to 10 tons); the formed large-tonnage drawing machine (100-300 tons) has large floor area, complex system and large self weight and is inconvenient to move and use; and a mechanical hydraulic combined drawing device is arranged, the drawing tonnage is intermediate (1 ton to 50 tons), the single dead weight is large, an independent hydraulic system is required, and the limitation of a large working space is realized.
Disclosure of Invention
The invention aims to solve the technical problem that the existing drawing device in the background technology has small tonnage and cannot solve the field problem or has larger tonnage, inconvenient and inflexible use and needs a large working place, and provides a manual mechanical ordinary-reinforcement dual-purpose drawing device which is convenient and flexible to use and is not limited by a large working space.
The invention can solve the problems by the following technical scheme: the manual mechanical type ordinary-reinforcement dual-purpose puller comprises a pressure-bearing lead screw, wherein a push nut and a central hole of a pressure-bearing body are connected to the pressure-bearing lead screw, and holes A are respectively formed in the left side and the right side of the upper part of the pressure-bearing body; holes B are respectively formed in the left side and the right side of the lower part of the pressure bearing body; the outer surface of the pushing nut is penetrated with a pressure-bearing base, and the pushing nut at the lower part of the pressure-bearing base is in threaded connection with a spare cap; two sides of the pressure-bearing base are respectively connected with a pushing rod through a stud bolt, and the pushing rods at two sides are respectively connected with one end of a pull rod through the stud bolt; the other end of the pull rod, which is close to the pressure-bearing lead screw, is connected with an upper hole of the triangular base through a stud bolt, a left lower side hole of the triangular base is connected with a pull piece through the stud bolt, and a right lower side hole of the triangular base is connected with a pressure-bearing body through a cylindrical pin; the lower part of the pulling piece is connected with the joint through a stud bolt, the lower part of the joint is in threaded connection with a drag hook, and the stud bolt for connecting the pulling piece and the joint penetrates through a hole in the lower part of the pressure bearing body; the cylindrical pin penetrates through holes in the upper parts of the triangular base and the pressure bearing body, so that the triangular base can rotate clockwise around the hole in the pressure bearing body, and the center part of the pressure bearing body is provided with a threaded hole which is in threaded connection with the pressure bearing lead screw.
Compared with the background technology, the invention has the following beneficial effects: the manual mechanical common-reinforcement dual-purpose puller has the following beneficial effects that:
when the four-bar mechanism is pulled by a shear type, the pushing rod generates a horizontal component force and a component force perpendicular to a connecting line of two holes of the pulling rod, when a large pulling force is needed and exceeds the range of manual operation force, the four-bar mechanism cannot act, and at the moment, the length of the two holes of the pulling rod is increased by a certain amount through the elastic deformation (the bending part is straightened) of the metal of the pulling rod, so that the pushing rod moves downwards continuously, the included angle theta between the pushing rod and the pulling rod is continuously reduced, and the horizontal component force is increased;
secondly, the horizontal component force generated by the pushing rod and the component force vertical to the connecting line of the two holes of the pulling rod are superposed on the component moment of the triangular base so that the draw hook obtains a great initial drawing force;
(III) when the included angle theta is reduced to a certain value (such as 10)oDetermined according to the length of each connecting rod), the component moment perpendicular to the connecting line of the two holes of the pull rod is smaller than the horizontal component moment, the pull rod mainly moves horizontally, and the larger horizontal component force of the four-bar mechanism is converted into vertical pulling force through the triangular base.
The invention can effectively solve the problem of large-tonnage drawing machines required in field sites or sites limited by space and emergency places. According to different needs, the adjustable space between two drag hooks, three drag hooks and drag hook is adjusted etc. to the repacking adjustment, improves work efficiency greatly, reduces working cost.
Drawings
FIG. 1 is a schematic structural view of the invention;
FIG. 2 is a schematic diagram of a modified four-bar linkage of the present invention;
FIG. 3 is a schematic diagram of the bending design of the four-bar linkage mechanism of the present invention;
FIG. 4 is a schematic diagram of the four bar linkage of the present invention with springs;
FIG. 5 is a schematic diagram of the operation of the four bar linkage of the present invention;
FIG. 6 is a schematic structural diagram of the pressure-bearing body of the invention;
FIG. 7 is a top view of FIG. 6;
FIG. 8 is a side view of FIG. 6;
figure 9 is a schematic diagram of the structure of the inventive joint.
In the figure: 1. pressure-bearing lead screw, 2, push rod, 3, pull lever, 4, triangular base, 5, pressure-bearing body, 6, pressure-bearing base, 7, push nut, 8, pull piece, 9, joint, 10, spare cap, 11, stud bolt, 12, stud bolt, 13, cylindrical pin, 14, gasket A, 15, gasket B, 16, draw hook, 17, spring, 18, reinforcing plate, 19, hole A, 20, hole B, 21 and central hole.
The specific implementation mode is as follows:
the invention will be further explained with reference to the accompanying drawings:
as shown in the attached figure 1, the manual mechanical type ordinary-reinforcement dual-purpose puller comprises a pressure-bearing lead screw 1, wherein the upper end and the lower end of the pressure-bearing lead screw 1 are in external thread connection with a push nut 7 and a central hole 21 of a pressure-bearing body 5, the structure of the pressure-bearing body 5 is shown in figures 6, 7 and 8, and holes A19 are respectively formed in the left side and the right side of the upper part of the pressure-bearing body 5 in order to increase the local tensile strength; holes B20 are respectively formed in the left side and the right side of the lower part of the pressure bearing body 5; a central hole of the pressure-bearing base 6 penetrates through the outer surface of the push nut 7, the pressure-bearing base 6 can freely rotate on the push nut 7 through the threaded connection of the spare cap 10 and the lower part of the push nut 7, and gaskets A14 are respectively arranged between the upper end and the lower end of the pressure-bearing base 6 and between the top of the push nut 7 and the spare cap 10; the two sides of the pressure-bearing base 6 are respectively connected with the pushing and pressing rods 2 through the stud bolts 11, the pushing and pressing rods 2 on the two sides are respectively connected with one end of the pull lever 3 through the stud bolts 11, the pull lever 3 adopts a bending design, and the pull lever 3 is bent at an angle<15O, the other end of the pull lever 3 close to the pressure-bearing lead screw 1 is connected with an upper hole of the triangular base 4 through a stud bolt 12, a left lower side hole of the triangular base 4 is connected with a pull piece 8 through a stud bolt 11, and a right lower side hole of the triangular base 4 is connected with a hole A19 in the upper part of the pressure-bearing body 5 through a cylindrical pin 13; the lower part of the pull tab 8 is connected with an opening on the upper part of the joint 9 and a hole B20 on the lower part of the pressure-bearing body 5 through a stud bolt 11, and the lower part of the joint 9 is in threaded connection with a draw hook 16, as shown in figure 9; a gasket B15 is arranged between the stud bolt 11 and the pushing rod 2 and the pull rod 3; the cylindrical pin 13 passes through the triangular base 4 and the holes on the pressure-bearing body 5, so that the triangular base 4 can rotate clockwise around the hole A19 on the pressure-bearing body 5, and a threaded hole in the central part of the pressure-bearing body 5 is in threaded connection with the pressure-bearing lead screw 1 and is also a main acting component of a common puller; the two-side push rod 2, the two pull levers 3, the triangular base 4, the pressure bearing body 5, the pull piece 8, the joint 9, the draw hook 16 and connecting parts thereof are connected to form a four-bar labor-saving mechanism; the initial angle of the included angle theta between the push rod 2 and the pull rod 3 is 30O—450(ii) a The lower part of the outer end of the pull lever 3 connected with the push rod 2 is connected with a spring 17 through a connecting rod, the design of adding the spring and the bending are the same, the four-connecting-rod labor-saving mechanism can start to work from a larger angle,the compression spring has an energy storage effect; the length of the pull rod 3 is changed and lengthened, and the initial angle of the included angle theta is mainly considered to be 30O—450When a large pulling force is required, the manual force applied to the push nut 7 cannot overcome the pulling force of the draw hook 16, and the purpose can be achieved by compressing the spring, so that the included angle theta is continuously reduced, and the pulling force of the draw hook 16 can be gradually increased; the pull lever 3 is integrally connected with the reinforcing plate 18, mainly for enhancing the bending strength of the pull lever 3, and the pull lever 3 is made of an elastically deformable metal material, specifically, a metal such as steel, iron, and the like.
Two holes pass through cylindric lock 13 and are connected with the hole of triangle base 4 about 5 upper portions of pressure-bearing body, and two holes are connected with joint 9 about the lower part, and joint 9 is outside to be connected by pulling-on piece 8, and 8 upper portions of pulling-on piece are connected with the hole of triangle base 4 with stud 11, and two holes are the slot hole about 5 lower parts of pressure-bearing body, and stud 11 passes wherein, can reciprocate to drive 8 rebound of pulling-on piece when driving triangle base 4 upset by pull rod 3, thereby drive and connect 9 and the removal of drag hook 16.
The manual mechanical ordinary-reinforcement dual-purpose puller of the invention is based on the theory that: firstly, a rhombic four-bar linkage mechanism applies force to one group of angular points, the other group of angular points obtains a force F1 (as shown in figure 2), when the angle of the obtained F1 force opposite angle is smaller, the F1 is far larger than the force application, and a triangular base 4 is added through mechanism combination to convert a horizontal force F1 into a vertical drawing force of the draw hook; secondly, the triangular base 4 and the pull rod 3 in the mechanism are combined to form a lever system, so that the vertical component F2 can be fully utilized and finally acts on the triangular base 4 and is converted into the pulling force of the draw hook 16. The draw hook 16 obtains a great tensile force.
The manual mechanical type ordinary-reinforcement dual-purpose puller takes a shear type four-connecting-rod labor-saving mechanism as a main carrier, a bolt penetrates through the diagonal angle of the shear type four-connecting-rod labor-saving mechanism, the four-connecting-rod is divided into two symmetrical parts, a nut is rotated, the included angle theta of the four-connecting-rod mechanism (namely the included angle between a push rod 2 and a pull lever 3) is reduced, when the included angle theta is reduced, a larger horizontal component F1 is obtained at the connecting part of the connecting rods, and when the included angle theta is close to 0oWhen it comes to horizontal force F1 approaching infinity. According to the characteristicsThe lower links on the left and right sides are modified (as shown in fig. 2) to convert the horizontal force F1 into a vertical force for the retractor 16. Meanwhile, the design of bending the pull lever 3 (as shown in fig. 3) or the design of adding a spring, which is the same as the design of bending, enables the length of the pull lever 3 to be changed and lengthened, mainly considering that the initial angle of the included angle theta is 30O—450Meanwhile, when a large pulling force is required, the manual force applied to the push nut 7 cannot overcome the pulling force of the draw hook 16, and the purpose can be achieved by compressing the spring, so that the included angle θ is continuously reduced, and the pulling force of the draw hook 16 can be gradually increased (as shown in fig. 4), so that the invention has the following effects: when the four-bar mechanism is pulled by a shear mode, the pushing rod 2 generates a horizontal component force and a component force perpendicular to a connecting line of two holes of the pulling rod 3, when a large pulling force is needed and exceeds the range of manual operation force, the four-bar mechanism cannot act, and at the moment, the length of the two holes of the pulling rod 3 is increased by a certain amount through the elastic deformation (the bending part is straightened) of the metal of the pulling rod 3, so that the pushing rod 2 continuously moves downwards, the included angle theta between the pushing rod 2 and the pulling rod 3 is continuously reduced, and the horizontal component force is increased; secondly, the horizontal component force generated by the pushing rod 2 and the component force vertical to the connecting line of the two holes of the pull rod 3 are superposed on the component moment of the triangular base 4 to ensure that the draw hook 16 obtains great initial drawing force; (III) when the included angle theta is reduced to a certain value (such as 10)oDetermined by the length of each connecting rod), the component moment perpendicular to the connecting line of the two holes of the pull rod 3 is smaller than the horizontal component moment, the pull rod 3 mainly moves horizontally (as shown in figure 5), and the large horizontal component force of the four-bar mechanism is converted into vertical pulling force through the triangular base 4.
As shown in fig. 1, the right side of the pressure-receiving screw will be described as an example. One end of the pull rod 3 close to the pressure-bearing lead screw 1 is connected with an upper hole of the triangular base 4 through a stud 12, and the pull rod is characterized in that: the pull rod 3 is provided with a bayonet which is attached to the side surface of the triangular base 4, and when the tail end of the pull rod 3 is forced downwards, the triangular base 4 and the pull rod 3 keep relatively static; when the pull rod 3 is subjected to a horizontal force, the pull rod 3 tends to move rightward, and when the included angle theta is smaller than a certain value (for example, 10)oIs determined according to the length of each connecting rod) And then move rightwards, simultaneously drive the triangular base 4 to rotate clockwise along the cylindrical pin 13, drive the left lower hole of the triangular base 4 to move circularly upwards, the hole is connected with the pulling piece 8 through the stud bolt 11, the lower part of the hole is connected with the joint 9 through the stud bolt 11, the lower part of the joint 9 is in threaded connection with the drag hook 16, and under the premise of keeping the pressure-bearing lead screw 1 immovable, the matching piece is pulled out by a certain length. The stud bolt connecting the pulling-on piece 8 and the joint 9 passes through the hole of the pressure-bearing body 5, and the linear up-and-down movement of the lower ends of the pulling hook 16 and the pulling-on piece 8 can be ensured.
The using method of the invention comprises the following steps: when the pull hook is used as a common puller, the pull hook 16 is hung on a workpiece, the push nut 7 is ensured not to rotate, and the pressure-bearing lead screw 1 is rotated until the workpiece is taken out; if the drawing force required for detaching the workpiece is large, the rotation of the pressure-bearing lead screw 1 is stopped, the spanner is used for clockwise rotating the pushing nut 7 to drive the pushing rod 2 and the pull rod 3 to move downwards and rightwards, the pull rod 3 adopts a bending design, and mainly, the fact that when the drawing force required is large, along with the downward and rightwards movement of the right end part of the pushing rod 2, the pull rod 3 can be elastically bent to a certain degree is mainly considered, so that the length between two holes in the pull rod 3 is prolonged, the pushing rod 2 is further pressed downwards, the included angle between the pulling rod 3 and the included angle between the pushing rod 2 is reduced (if the pulling rod is not bent, the included angle is not reduced), and when the included angle is reduced to a certain value (for example, 10oDetermined according to the length of each connecting rod), the horizontal component moment generated by the push rod 2 is larger than the rotation moment generated by the pull rod 3, the pull rod 3 mainly moves horizontally and rightwards, so that the horizontal force of the four-bar mechanism is converted into the vertical force, and when the included angle is close to 0oThe horizontal partial moment approaches infinity. Before the horizontal movement to the right, due to the existence of the elastic bending of the pull lever 3, the rotation moment generated by the pull lever 3 is superposed with the horizontal component moment, and the superposed rotation moment and the horizontal component moment jointly act on the triangular base 4 and enable the triangular base to rotate clockwise, so that the draw hook 16 obtains great initial drawing force.
Example 1
As shown in figure 1, when the motor rusty belt pulley of the pumping unit is drawn on site, the pumping unit is in field working site, the replacement frequency of the motor belt pulley is low, so when the motor belt pulley needs to be replaced, the motor belt pulley is often rusted due to severe working environmentIt is serious to corrode, draw with the puller, at first, draw ware drag hook 16 on the belt pulley, rotatory pressure-bearing lead screw 1, make drag hook 16 tightly paste on the belt pulley, continue rotatory pressure-bearing lead screw 1, until taking out the belt pulley, if draw hard or pressure-bearing lead screw 1 is rotatory motionless, then stop rotating, bulldoze nut 7 with spanner clockwise rotation at this moment and make the contained angle that bulldozes pole 2 and draw lever 3 diminish, because the design of bending of draw lever 3, sustainable messenger's contained angle diminishes, the pulling force that obtains can be bigger and bigger, continue to rotate and bulldoze nut 7, until 0oThe pulley is pulled out by a length. The push nut 7 is then rotated anticlockwise to the initial position, and the operation is repeated until the pulley is pulled out, restoring the initial puller position.
Example 2
As shown in figures 1 and 4, when the oil pumping unit is used for drawing the spot and rusting a belt pulley of the oil pumping unit, the oil pumping unit is used for a field working spot, the replacement frequency of the belt pulley of the motor is low, so when the oil pumping unit needs to be replaced, the oil pumping unit is often rusted seriously due to a severe working environment, the drawing unit is used for drawing, firstly, a drawing device draw hook 16 is put on the belt pulley, a pressure-bearing lead screw 1 is rotated, the draw hook 16 is tightly attached on the belt pulley, the pressure-bearing lead screw 1 is continuously rotated until the belt pulley is taken out, if the drawing is hard or the pressure-bearing lead screw 1 is not rotated, the rotation is stopped, at the moment, a spanner is used for clockwise rotating a push nut 7 to reduce the included angle between a push rod 2 and a pull rod 3, and because of the bending and the spring design of the pull rod 3, the push rod 2, or the spring is compressed, the pull rod 3 is lengthened, partial force application and work application are converted into elastic potential energy in the process, the included angle theta of the four-bar mechanism can be continuously reduced due to the increase of the length of the pull rod 3, the angle theta is smaller, the obtained drawing force is larger and larger, and the nut 7 is continuously rotated and pushed until the included angle theta is 0oThe pulley is pulled out by a length. The push nut 7 is then rotated anticlockwise to the initial position, and the operation is repeated until the pulley is pulled out, restoring the initial puller position.
The embodiment can effectively solve the problem of large-tonnage drawing machines required in field sites or sites limited by space and emergency places. The self material load resistance of the drawing device is allowed, the drawing force can be multiplied by a plurality of times, the working efficiency is greatly improved, and the working cost is lower.
Claims (6)
1. The utility model provides a ware is drawn to ordinary-dual-purpose reinforcement of manual machine formula, includes pressure-bearing lead screw (1), and the outer threaded connection of the lower extreme bulldozes the centre bore of nut (7), pressure-bearing body (5) about pressure-bearing lead screw (1), its characterized in that: holes A (19) are respectively formed in the left side and the right side of the upper part of the pressure bearing body (5); holes B (20) are respectively formed in the left side and the right side of the lower part of the pressure bearing body (5); a pressure-bearing base (6) penetrates through the outer surface of the push nut (7), and the push nut (7) at the lower part of the pressure-bearing base (6) is in threaded connection with a spare cap (10); two sides of the pressure-bearing base (6) are respectively connected with the pushing rods (2) through stud bolts, and the pushing rods (2) at two sides are respectively connected with one end of the pull lever (3) through stud bolts; the other end of the pull lever (3) close to the pressure-bearing lead screw (1) is connected with an upper hole of a triangular base (4) through a stud bolt, a left lower side hole of the triangular base (4) is connected with a pull piece (8) through the stud bolt, and a right lower side hole of the triangular base (4) is connected with a hole A (19) in the upper part of the pressure-bearing body (5) through a cylindrical pin (13); the lower part of the pull sheet (8) is connected with the joint (9) through a stud bolt, the lower part of the joint (9) is in threaded connection with a drag hook (16), and the stud bolt for connecting the pull sheet (8) and the joint (9) penetrates through a hole B (20) in the lower part of the pressure bearing body (5); the cylindrical pin (13) passes through the triangular base (4) and the hole A (19) on the pressure-bearing body (5), so that the triangular base (4) can rotate clockwise around the hole on the pressure-bearing body (5).
2. The dual purpose manual mechanical power extractor of claim 1, wherein: the two-side pushing rod (2), the two pull levers (3), the triangular base (4), the pressure-bearing body (5), the pull sheet (8), the joint (9) and the drag hook (16) are connected to form a four-link labor-saving mechanism.
3. The manual mechanical normal-power dual purpose puller according to claim 1 or 2, wherein: the lower part of the end of the pull lever (3) connected with the push rod (2) is connected with a spring (17) through a connecting rod.
4. The dual purpose manual mechanical power extractor of claim 1, wherein: gaskets are respectively arranged between the upper end and the lower end of the pressure-bearing base (6), the top of the push nut (7) and the spare cap (10).
5. The dual purpose manual mechanical power extractor of claim 1, wherein: the pull lever (3) is made of an elastically deformable metal material.
6. The manual mechanical normal-power dual purpose puller according to claim 1 or 2, wherein: gaskets are respectively arranged between the pushing rod (2) and the pull rod (3) and the stud bolts.
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| CN201910457196.XA CN110202521B (en) | 2019-05-29 | 2019-05-29 | Manual mechanical common-reinforcement dual-purpose puller |
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| CN201910457196.XA CN110202521B (en) | 2019-05-29 | 2019-05-29 | Manual mechanical common-reinforcement dual-purpose puller |
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| CN110202521A CN110202521A (en) | 2019-09-06 |
| CN110202521B true CN110202521B (en) | 2021-06-18 |
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| CN114012666B (en) * | 2021-11-22 | 2023-10-10 | 贵州电网有限责任公司 | Screw accessory locking and mounting device |
| CN114516023B (en) * | 2021-12-08 | 2023-08-22 | 电子科技大学长三角研究院(湖州) | Special installation device of bicycle supporting leg spring |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1470310A (en) * | 1922-06-28 | 1923-10-09 | Ernest E Winchell | Wheel and gear remover |
| GB370794A (en) * | 1931-08-24 | 1932-04-14 | Max Schaefer | Improvements in or relating to wheel pullers and the like tools |
| US2681501A (en) * | 1950-04-20 | 1954-06-22 | Schrem Albert | Device for removing articles from their supports |
| US4916791A (en) * | 1989-07-26 | 1990-04-17 | Clouse Mary A | Ball bearing puller attachment |
| RU2050252C1 (en) * | 1992-02-25 | 1995-12-20 | Василий Михайлович Яковлев | Remover |
| CN104802127A (en) * | 2015-05-12 | 2015-07-29 | 中国石油大学(华东) | Differential type bearing removing device |
| CN204954747U (en) * | 2015-09-29 | 2016-01-13 | 陈大才 | Ware is drawn to multi -functional bearing |
| CA2965264A1 (en) * | 2014-10-24 | 2016-04-28 | Tiger Tool International Incorporated | Universal pitman arm puller |
| CN107351019A (en) * | 2017-09-12 | 2017-11-17 | 周楠 | A kind of hybrid multifunctional mechanical pullers |
-
2019
- 2019-05-29 CN CN201910457196.XA patent/CN110202521B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1470310A (en) * | 1922-06-28 | 1923-10-09 | Ernest E Winchell | Wheel and gear remover |
| GB370794A (en) * | 1931-08-24 | 1932-04-14 | Max Schaefer | Improvements in or relating to wheel pullers and the like tools |
| US2681501A (en) * | 1950-04-20 | 1954-06-22 | Schrem Albert | Device for removing articles from their supports |
| US4916791A (en) * | 1989-07-26 | 1990-04-17 | Clouse Mary A | Ball bearing puller attachment |
| RU2050252C1 (en) * | 1992-02-25 | 1995-12-20 | Василий Михайлович Яковлев | Remover |
| CA2965264A1 (en) * | 2014-10-24 | 2016-04-28 | Tiger Tool International Incorporated | Universal pitman arm puller |
| CN104802127A (en) * | 2015-05-12 | 2015-07-29 | 中国石油大学(华东) | Differential type bearing removing device |
| CN204954747U (en) * | 2015-09-29 | 2016-01-13 | 陈大才 | Ware is drawn to multi -functional bearing |
| CN107351019A (en) * | 2017-09-12 | 2017-11-17 | 周楠 | A kind of hybrid multifunctional mechanical pullers |
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| CN110202521A (en) | 2019-09-06 |
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Effective date of registration: 20211221 Address after: 163453 Heilongjiang Province, Daqing City Ranghulu District No. 233 South Central Avenue Patentee after: Daqing Oilfield Co.,Ltd. Patentee after: PetroChina Co Ltd Address before: 163453 Heilongjiang Province, Daqing City Ranghulu District No. 233 South Central Avenue Patentee before: Daqing Oilfield Co.,Ltd. |