CN210173459U - U-shaped tension device suitable for positioning bearing of oil transfer pump - Google Patents

U-shaped tension device suitable for positioning bearing of oil transfer pump Download PDF

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Publication number
CN210173459U
CN210173459U CN201920477014.0U CN201920477014U CN210173459U CN 210173459 U CN210173459 U CN 210173459U CN 201920477014 U CN201920477014 U CN 201920477014U CN 210173459 U CN210173459 U CN 210173459U
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screw
bearing
pulling force
tension
shaped
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CN201920477014.0U
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Chinese (zh)
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樊正刚
宋晓林
樊正闻
李晓芳
赵述迟
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樊正刚
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Abstract

The utility model discloses a U type pulling force device suitable for petroleum pump location bearing, draw claw, lead screw, pulling force screw and adapting unit including two, two draw the claw to be connected with the pulling force screw through adapting unit respectively, and the lead screw carries out the screw-in with threaded connection's mode and pulling force screw and is connected. The pull claw is designed into a U-shaped structure, and a connecting part is arranged on the pull claw. The tensile lead screw is provided with a driving end with a plurality of edges and corners, and the tensile screw nut is provided with a clamping groove. The connecting part comprises an upper hook-shaped pressing sheet, a lower hook-shaped pressing sheet and a locking screw. The utility model discloses rational in infrastructure, design benefit, low in manufacturing cost, convenient to carry, easy operation has avoided at the installation or has dismantled the in-process to the damage of positioning bearing, has also improved the assembly work efficiency of bearing simultaneously.

Description

U-shaped tension device suitable for positioning bearing of oil transfer pump
Technical Field
The utility model relates to an oil transfer pump location bearing tension device especially relates to a U type tension device suitable for oil transfer pump location bearing.
Background
The positioning bearing is positioned at the non-driving end of the oil transfer pump and mainly used for axially and radially positioning the pump shaft. At present, a maintainer usually adopts a knocking method to install or disassemble a positioning bearing in daily maintenance work, and the specific operation mode is that one end of a steel bar is enabled to be propped against an inner ring of the bearing, the other end of the steel bar is knocked forcibly by a practical hammer, and the bearing is installed in place or disassembled under strong knocking impact force. The disadvantage of this method of installing or removing the bearing by tapping is that: in the knocking process, impact force directly acts on the bearing, so that the external damage of the bearing is easily caused; because of the material characteristics of the copper rod, the copper rod is easy to slag in the stress process of knocking, installing and disassembling the positioning bearing, and the copper slag falls into the bearing to generate larger friction resistance to influence the normal work of the bearing, thereby reducing the service life of the bearing.
The positioning bearing is disassembled by adopting a common chest expander with three pulling claws sometimes in the process of disassembling the positioning bearing, the upper end cover and the lower end cover of a bearing box are required to be completely disassembled by using the common chest expander, the positioning bearing can be disassembled after being loosened by using a knocking method before the lower end cover is disassembled, and the bearing can still be damaged by knocking impact force; in the process of disassembling the bearing, three pulling claws are required to be in a triangular layout to act on three points of the bearing, so that the operation is complicated; the common chest expander usually uses a jack as a power source of the chest expander, a special hydraulic station needs to be equipped on a construction site, the cost is high, and the environment is easily polluted by leakage and discharge of oil.
SUMMERY OF THE UTILITY MODEL
The utility model aims at the not enough of above-mentioned technique, the utility model aims at providing a U type pulling force device suitable for fuel delivery pump location bearing, the device is rational in infrastructure, design benefit, low in manufacturing cost, convenient to carry, easy operation has avoided the damage to location bearing at the installation or dismantlement in-process, has also improved the assembly work efficiency of bearing simultaneously.
In order to achieve the technical purpose, the utility model adopts the technical proposal that: the U-shaped tension device suitable for the positioning bearing of the oil transfer pump comprises two pulling claws, a tension lead screw, a tension nut and a connecting component, wherein the two pulling claws are respectively connected with the tension nut through the connecting component, and the tension lead screw is connected with the tension nut in a screwing-in manner in a threaded connection mode.
Furthermore, the pulling claw is designed to be of a U-shaped structure, is machined and manufactured by adopting high-quality carbon structural steel, preferably 45# steel, and has excellent comprehensive mechanical properties.
Furthermore, the pull claw is provided with a connecting part, and the connecting part is provided with at least one screw hole.
Further, the tension screw is provided with a driving end with a plurality of edges.
Furthermore, the tension screw is provided with a clamping groove.
Further, the connecting part comprises an upper hook-type pressing sheet, a lower hook-type pressing sheet and a locking screw.
The utility model has the advantages that:
by adopting the above technical scheme, the utility model, solved and adopted the strike method installation or dismantle positioning bearing and cause damage, influence bearing life and adopt ordinary chest expander to dismantle bearing complex operation, with higher costs, cause environmental pollution's a difficult problem easily to it easily. The utility model relates to a draw the claw for two "U" types, direct card has increaseed the lifting surface area who draws between claw and the bearing in the both sides of location bearing during the use, and the application of force is more even. The tension lead screw is matched with the tension screw nut, the bearing is pressurized by rotating the tension lead screw, the puller distance can be freely and rotatably adjusted, and the central point of a pulled workpiece can be quickly found. The pull claw is made of 45# high-quality carbon structural steel, has excellent comprehensive mechanical property, and is low in cost and processing cost.
The utility model discloses rational in infrastructure, design benefit, low in manufacturing cost, convenient to carry, easy operation has avoided at the installation or has dismantled the in-process to the damage of positioning bearing, has also improved the assembly work efficiency of bearing simultaneously.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the structure of the pulling claw of the present invention;
FIG. 3 is a schematic structural view of the connecting member of the present invention;
in the figure: 1-pulling claw, 2-pulling lead screw, 3-pulling screw nut, 4-connecting part, 5-positioning bearing, 6-shaft end, 11-connecting part, 12-screw hole, 21-driving end, 31-clamping groove, 41-upper hook type pressing sheet, 42-lower hook type pressing sheet and 43-locking screw.
Detailed Description
In order to make the technical means, creation features, achievement purposes and effects of the present invention clearer and easier to understand, the present invention will be further described with reference to the accompanying drawings and specific embodiments.
Referring to fig. 1-3, the utility model provides a pair of U type pulling force device suitable for petroleum pump location bearing, including two draw claws 1, lead screw 2, pulling force screw 3 and adapting unit 4, two draw claws 1 to be connected with pulling force screw 3 through adapting unit 4 respectively, and lead screw 2 carries out the screw-in with pulling force screw 3 with threaded connection's mode and is connected.
The pull claw 1 is designed into a U-shaped structure, is processed and manufactured by adopting high-quality carbon structural steel, preferably 45# steel, and has excellent comprehensive mechanical property; the pulling claw 1 is provided with a connecting part 11, and the connecting part 11 is provided with two screw holes 12; the tension lead screw 2 is provided with a driving end 21 with a plurality of edges, so that a special tool is convenient to install, and the tension lead screw 2 rotates; the tension screw nut 3 is provided with a clamping groove 31, and the clamping groove 31 is connected with the connecting part 4 in a sliding manner; the connecting member 4 is composed of upper and lower hook type presser plates 41, 42 and a locking screw 43.
When in use, the distance between the two pulling claws 1 is adjusted according to the diameter of the shaft end 6, the distance is slightly larger than the diameter of the shaft end 6, and the locking screw 43 on the connecting part 4 is fastened after the distance is adjusted; the pulling claws 1 are clamped on the shaft end 6 and hook the two sides of the bearing 5, the pulling screw 2 is rotated by hands, so that the pulling screw 2 props against the center of the shaft end 6, then the driving end 21 of the pulling screw 2 is rotated clockwise by adopting a special tool, pressure is continuously applied to the direction of the shaft end 6, the bearing 5 has strong reverse pulling force under the action of the two pulling claws 1, and the bearing 5 is detached from the shaft end 6.
The utility model discloses direct card has increaseed the lifting surface area between draw claw and the bearing in the both sides of location bearing during the use, and the application of force is more even. The tension lead screw is matched with the tension screw nut, the bearing is pressurized by rotating the tension lead screw, the puller distance can be freely and rotatably adjusted, and the central point of a pulled workpiece can be quickly found. The pull claw is made of 45# high-quality carbon structural steel, has excellent comprehensive mechanical property, and is low in cost and processing cost.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims (6)

1. The utility model provides a U type pulling force device suitable for petroleum pump location bearing, includes that two draw claw, tensile lead screw, pulling force screw and adapting unit, its characterized in that: the two pulling claws are respectively connected with a pulling force nut through the connecting part, and the pulling force screw rod is connected with the pulling force nut in a screwing-in type in a threaded connection mode.
2. The U-shaped tension device for the positioning bearing of the oil transfer pump as claimed in claim 1, wherein: the pull claw is designed to be of a U-shaped structure and is machined and manufactured by 45# carbon structural steel.
3. The U-shaped tension device for the positioning bearing of the oil transfer pump as claimed in claim 1, wherein: the pull claw is provided with a connecting part, and the connecting part is provided with at least one screw hole.
4. The U-shaped tension device for the positioning bearing of the oil transfer pump as claimed in claim 1, wherein: the tension lead screw is provided with a driving end with a plurality of edges.
5. The U-shaped tension device for the positioning bearing of the oil transfer pump as claimed in claim 1, wherein: the tension screw nut is provided with a clamping groove.
6. The U-shaped tension device for the positioning bearing of the oil transfer pump as claimed in claim 1, wherein: the connecting part comprises an upper hook-shaped pressing sheet, a lower hook-shaped pressing sheet and a locking screw.
CN201920477014.0U 2019-04-10 2019-04-10 U-shaped tension device suitable for positioning bearing of oil transfer pump Active CN210173459U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201920477014.0U CN210173459U (en) 2019-04-10 2019-04-10 U-shaped tension device suitable for positioning bearing of oil transfer pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201920477014.0U CN210173459U (en) 2019-04-10 2019-04-10 U-shaped tension device suitable for positioning bearing of oil transfer pump

Publications (1)

Publication Number Publication Date
CN210173459U true CN210173459U (en) 2020-03-24

Family

ID=69830655

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201920477014.0U Active CN210173459U (en) 2019-04-10 2019-04-10 U-shaped tension device suitable for positioning bearing of oil transfer pump

Country Status (1)

Country Link
CN (1) CN210173459U (en)

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