CN211661937U - Special wheel puller for conical coupling - Google Patents
Special wheel puller for conical coupling Download PDFInfo
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- CN211661937U CN211661937U CN201921583583.XU CN201921583583U CN211661937U CN 211661937 U CN211661937 U CN 211661937U CN 201921583583 U CN201921583583 U CN 201921583583U CN 211661937 U CN211661937 U CN 211661937U
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Abstract
The utility model provides a special wheel puller of toper pair wheel, two terminal surfaces around the toper pair wheel has, special wheel puller of toper pair wheel two terminal surfaces keep parallel around, two parts about the front end divide into, install fully laminating on the toper pair wheel the cambered surface of toper pair wheel, include: the U-shaped steel plate is formed by overlapping a plurality of U-shaped steel plate splicing pieces, and the U-shaped steel plates are uniformly distributed to form frustum arc surface ribs which are tightly contacted with the conical paired wheel; the I-shaped steel plate is fixed on the rear plane of the frustum cambered surface rib; the jack is a 32T jack, the front end of the jack is a stressed end, and the rear end of the jack is connected with the rear end face of the tapered pair wheel through a lead screw bolt to form a whole; the back end surface of the conical paired wheels is a pillow made of channel steel. Simple, convenient and practical, and can reduce the maintenance cost for overhauling motors of the same types as coal mill motors.
Description
Technical Field
The utility model relates to an electric power industry technical field, concretely relates to special wheel puller of toper pair wheel.
Background
The wheel extractor is a special tool for disassembling wheel parts, and due to the requirement of torque transmission, the wheel and the shaft are usually in transition fit or close fit and are matched with a key for connection, and oxidation and even corrosion are liable to be generated after the wheel extractor is used for a certain time, so that the wheel parts are disassembled from the shaft in maintenance, which often becomes a troublesome problem in maintenance. The traditional wheel extractor generally comprises parts such as a handle, a screw rod, a nut, a cross arm, a pull rod, a tip and the like, when the wheel extractor is used, the rotation of the screw rod is converted into the axial movement of the nut, the cross arm drives the pull rod to pull out a wheel, and the traditional wheel extractor has the following problems for a long time:
1. the screw is jacked in a central hole of the shaft end in a tip mode to convert the thrust of the screw into the tension of the nut, so that the shaft end is required to be provided with the central hole and should be a complete central hole, otherwise, the operation cannot be carried out;
2. in operation, the center is rotated in the center hole and simultaneously transmits all the pulling force of the wheel extractor, so that the working conditions between the center and the center hole are relatively bad. Moreover, since the hardness of the tip is generally designed to be higher than that of the shaft in consideration of the use condition, it is inevitable to damage the center hole of the shaft end during the operation.
3. In the operation, the center hole is deformed to cause top deflection, and the pull rod slips to easily cause injury to people.
4. The transmission efficiency of the screw is low, only 0.3-0.6, so that the traditional wheel extractor is generally heavier and inconvenient to operate.
The units 9 and 10 of the horse-head thermoelectric division company of some power generation Limited companies are newly built into production units, the coal mill motor used is a high-voltage motor of 6kV and is specially constructed, and the mechanical paired wheel connected with the coal mill motor is a conical paired wheel. In the previous maintenance work, the motor pair wheel is a professional maintenance tool corresponding to the traditional pair wheel (see figure 2), and the maintenance tool is also prepared for the traditional pair wheel and does not have the maintenance condition for the novel pair wheel motor. The special structure of the wheel increases the difficulty of the maintenance work and may also cause unnecessary equipment damage. If a manufacturer of the coal mill is contacted to carry out off-plant maintenance, the maintenance time and cost are undoubtedly increased, and the normal operation of the unit cannot be guaranteed. In order to quickly and effectively solve the same problem in the later maintenance work of similar motors, the technical attack on the paired wheels of the novel motor is required.
SUMMERY OF THE UTILITY MODEL
In order to overcome the above-mentioned problem that prior art exists, the utility model provides a special wheel puller of toper pair wheel has two terminal surfaces from beginning to end, special wheel puller of toper pair wheel two terminal surfaces keep parallel from beginning to end, two parts about the front end divide into, install fully laminate on the toper pair wheel the cambered surface of toper pair wheel includes:
the U-shaped steel plate is formed by overlapping a plurality of U-shaped steel plate splicing pieces, and the U-shaped steel plates are uniformly distributed to form frustum arc-surface ribs which are in close contact with the conical paired wheels;
the H-shaped steel plate is fixed on the rear plane of the frustum cambered rib;
the jack is a 32T jack, the front end of the jack is a stressed end, and the rear end of the jack is connected with the rear end face of the tapered pair wheel through a lead screw bolt to form a whole.
Preferably, the rear end faces of the tapered pairs of wheels are pillows made of channel steel.
Preferably, the U-shaped steel plate splicing piece is a steel plate with the thickness of 40 mm.
Preferably, the diameter of the screw bolt is phi 20.
Preferably, the axial center line of the special wheel puller for the conical pair wheel and the axial center line of the jack act on the same straight line and are parallel to the lead screw bolt, and the lead screw bolt and the front end face and the rear end face form a 90-degree space right angle.
Preferably, the tapered pair of wheels has holes of the same diameter on the upper, lower, left, and right sides thereof, respectively, and has a triangular prism-shaped wedge formed to fit the curved surface of the tapered pair of wheels, and the wedge is provided with holes of the same diameter as those of the tapered pair of wheels on the upper, lower, left, and right sides thereof.
Preferably, the special wheel extractor is provided with a hole, and the hole of the conical pair wheel and the hole of the special wheel extractor pass through
The screw rods are connected and are penetrated out and fixed on the conical pair wheel through nuts and gaskets.
Preferably, a first channel steel and a second channel steel are arranged on the side face of the pillow, and a gap is formed between the first channel steel and the second channel steel.
Preferably, the screw is disposed in the gap.
Preferably, a plurality of parallel pairs of gear teeth are provided on the tapered pair of wheels.
The utility model has the advantages that:
simple, convenient and practical, and can reduce the maintenance cost for overhauling motors of the same types as coal mill motors.
The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.
Drawings
Some specific embodiments of the present invention will be described in detail hereinafter, by way of illustration and not by way of limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. The objects and features of the present invention will become more apparent in view of the following description taken in conjunction with the accompanying drawings, in which:
FIG. 1 is a structural view of a tapered pair of wheels according to an embodiment of the present invention;
FIG. 2 is a schematic view of the structure of a conventional pair of wheels according to the prior art;
fig. 3 is a schematic structural view of a special tapered wheel extractor according to an embodiment of the present invention;
fig. 4 is a first side view, a front view, and a second side view of a pillow according to an embodiment of the present invention;
FIG. 5 is a schematic structural view of a U-shaped steel splice according to an embodiment of the present invention;
fig. 6 is a schematic view of a modified tapered pair wheel having a wedge portion in accordance with an embodiment of the present invention;
fig. 7 is a schematic view of a tapered pair wheel structure including a pair of wheel teeth according to an embodiment of the present invention;
fig. 8 is a side cross-sectional view of a modified tapered pair of wheels in accordance with an embodiment of the present invention;
fig. 9 is a top cross-sectional view of a modified tapered pair wheel according to an embodiment of the present invention.
Description of reference numerals in the drawings
1-tapered pair wheel 2-traditional pair wheel 3-U-shaped steel plate 4-32T jack 5-lead screw bolt 6-pillow first side 7-pillow front 8-pillow second side 9-pillow top view 10-first channel steel 11-gap 12-second channel steel 13-U-shaped steel plate splice 14-wedge 15-modified tapered pair wheel 16-modified tapered pair wheel main view 17-modified tapered pair wheel side view section 18-modified tapered pair wheel top view section 19-pair wheel tooth
Detailed Description
The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings, which are not intended to limit the scope of the invention.
Referring to fig. 1 and 7, there is shown a structural view of a tapered pair of wheels 1, wherein a plurality of parallel pair of wheel teeth 19 are provided on tapered pair of wheels 1.
Referring to fig. 3 and 5, a tapered wheel extractor having a front end surface and a rear end surface, the front end surface and the rear end surface of the tapered wheel extractor being parallel, the front end being divided into an upper portion and a lower portion, the front end being mounted on the tapered wheel to substantially fit the arc surface of the tapered wheel, the tapered wheel extractor comprising: the U-shaped steel plates 3 are formed by overlapping a plurality of U-shaped steel plate splicers 13, and the U-shaped steel plates 3 are uniformly distributed to form frustum arc-surface ribs which are in close contact with the conical paired wheels; the I-shaped steel plate is fixed on the rear plane of the frustum cambered surface rib; the jack 4, the jack 4 is 32T jack, and the jack 4 front end is the stress end, and the rear end passes through lead screw bolt 5 and is connected with the toper pair wheel rear end face and forms wholly. The back end surface of the conical paired wheels is provided with a pillow 6 made of channel steel. In this embodiment, the diameter of the lead screw bolt 5 is phi 20
As shown in fig. 5, the U-shaped steel splice 13 is a 40mm steel plate.
As shown in fig. 6, the axial center line of the special wheel puller for the conical pair wheel and the axial center line of the jack act on the same straight line and are parallel to the lead screw bolt 5, and the lead screw bolt 5 forms a 90-degree right angle with the front end face and the rear end face. The upper part, the lower part, the left part and the right part of the conical pair wheel are respectively provided with holes with the same diameter, and the inclined iron is provided with a triangular prism-shaped inclined iron which is formed by adhering the cambered surfaces of the conical pair wheel, and the inclined iron is provided with holes with the same diameter as the holes arranged on the upper part, the lower part, the left part and the right part of the conical pair wheel.
The special wheel puller is provided with a hole, and the hole of the conical pair wheel and the hole of the special wheel puller pass through
The screw rods are connected and are penetrated out and fixed on the conical pair wheel through nuts and gaskets.
As shown in fig. 4, a first channel 10 and a second channel 12 are disposed on the side of the pillow 6, and a gap 11 is formed between the first channel 10 and the second channel 12. The screw is placed in the gap 11.
A schematic illustration of a tapered pair wheel configuration 16 incorporating a pair of gear teeth as shown in figure 7; FIG. 8 shows a side cross-sectional portion 17 of the modified tapered pair of wheels; fig. 9 shows the modified tapered pair wheel top view portion 18.
The using method comprises the following steps: in the repairing process, the special wheel puller is pushed by a jack to realize the disassembly. The opening of the wheel puller is inserted into the middle output shaft of the conical pair wheel and the motor end cover, then the head of the jack 4 is centered on the output shaft of the motor, the base of the jack 4 is abutted against the U-shaped steel plate of the wheel puller, the operating handle of the jack 4 is slowly pressed, the jack 4 pushes the special wheel puller, the wheel puller is used for driving the conical pair wheel to move together, and the dismounting process of separating the wheel shaft is realized. When the belt pulley which is rusted seriously is disassembled, the kerosene is firstly brushed out by matching the pulley with the shaft, and the disassembly is carried out after a period of time, so that the effect is better.
In the embodiment, 3U-shaped steel plate splicers 13 with the thickness of 40mm are adopted for superposition, the steel plates are uniformly distributed to form a frustum arc-surface rib and are in close contact with a conical coupling, the rear plane of the frustum arc-surface rib is fixed with an I-shaped steel plate, the mechanical stress of interference fit of a motor shaft and the coupling is considered, and through field practice, a 32-ton jack shaft system is selected for outputting power, so that the front end of the jack is a stressed end, and the rear end of the jack is connected with the rear plane of the coupling through a phi 20 screw rod to form a whole. The front end face and the rear end face of the wheel puller are kept parallel, the axial center lines of the paired wheels and the jack are guaranteed to act on the same straight line and are parallel to the connecting screw bolt 5, and the screw bolt 5 and the front end face and the rear end face form a 90-degree spatial right angle, so that the output torque vector is consistent with the axial direction, and the maximum output torque is obtained.
The special tool is similar to a U shape, the front end of the special tool is divided into an upper part and a lower part, and the special tool is arranged on the novel pair wheel and can be fully attached to the cambered surface of the pair wheel, so that the pair wheel can be uniformly stressed. The back end is a pillow made of channel steel, which plays a supporting role. When the top shaft is used for applying force, the upper part and the lower part can be simultaneously stressed.
When the conical coupling wheel is contacted for the first time, the manufactured special tool is large in size and has certain difficulty in operation. For later maintenance work to be carried out more quickly and effectively. The wheel is reformed and a corresponding special tool is designed to adapt to the maintenance work under the emergency condition.
According to the field measurement and experimental data of the novel tapered paired wheel, the upper part, the lower part, the left part and the right part of the paired wheel are respectively provided with the same diameter of
The hole of (2). According to the radian measurement data of new pair wheel cambered surface it uses cast iron to make the cambered surface be designed into the oblique iron similar to triangular prism shape, and has
The hole of (2). By using
The screw rod connects the paired wheel with the hole of the special tool, and the screw rod is penetrated out and fixed on the paired wheel by a nut and a gasket. The back end of the pair of wheels is a pillow made of channel steel, and the screw is arranged in the gap of the steel plate. And outputting power by using a 32-ton jack shaft system to enable the front end of the jack to be a stressed end, and connecting the rear end of the jack and the rear plane of the pair wheel through a phi 20 screw rod to form a whole.
The technical solutions provided by the embodiments of the present invention are described in detail above, and the principles and embodiments of the present invention are explained herein by using specific examples, and the descriptions of the above embodiments are only applicable to help understand the principles of the embodiments of the present invention; meanwhile, a person skilled in the art can change the embodiments and the application ranges according to the embodiments of the present invention, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
Claims (10)
1. The utility model provides a special wheel puller of toper pair wheel which characterized in that: two terminal surfaces around toper pair wheel (1) has, two terminal surfaces keep parallel around the special wheel puller of toper pair wheel two terminal surfaces are divided into upper and lower two parts to the front end, install fully laminate on the toper pair wheel the cambered surface of toper pair wheel includes:
the U-shaped steel plates (3) are formed by overlapping a plurality of U-shaped steel plate splicing pieces (13), and the U-shaped steel plates (3) are uniformly distributed to form frustum arc-surface ribs which are tightly contacted with the conical paired wheels;
the H-shaped steel plate is fixed on the rear plane of the frustum cambered rib; and
the lifting jack (4), the lifting jack (4) is 32T lifting jack, the front end of lifting jack (4) is the stress end, and the rear end passes through lead screw bolt (5) and is connected with the toper pair wheel rear end face and forms wholly.
2. The tapered wheel extractor as claimed in claim 1, wherein: the back end surface of the conical paired wheel (1) is provided with a pillow (6) made of channel steel.
3. The tapered wheel extractor as claimed in claim 1, wherein: the U-shaped steel plate splicing pieces (13) are steel plates with the thickness of 40 mm.
4. The tapered wheel extractor as claimed in claim 1, wherein: the diameter of the lead screw bolt (5) is phi 20.
5. The tapered wheel extractor as claimed in claim 1, wherein: the axial center line of the special wheel puller for the conical paired wheel and the axial center line of the jack act on the same straight line and are parallel to the screw bolt (5), and the screw bolt (5) and the front end face and the rear end face form a 90-degree-of-space right angle.
6. The tapered wheel extractor as claimed in claim 2, wherein: the tapered pair wheels (1) are provided with holes with the same diameter respectively at the upper, lower, left and right sides, and are provided with inclined irons which are attached to the cambered surfaces of the tapered pair wheels and form triangular prism shapes, and the inclined irons are provided with holes with the same diameter as the holes arranged at the upper, lower, left and right sides of the tapered pair wheels.
7. The tapered wheel extractor as claimed in claim 6, wherein: the special wheel puller for the conical pair wheel is provided with a hole, and the hole of the conical pair wheel (1) and the hole of the special wheel puller for the conical pair wheel pass through
The screw rods are connected and are penetrated out and fixed on the conical pair wheel through nuts and gaskets.
8. The tapered wheel extractor as claimed in claim 7, wherein: a first channel steel (10) and a second channel steel (12) are arranged on the side face of the pillow (6), and a gap (11) is formed between the first channel steel (10) and the second channel steel (12).
9. The tapered wheel extractor as claimed in claim 8, wherein: the screw is placed in the gap (11).
10. The tapered wheel extractor as claimed in claim 1, wherein: a plurality of parallel gear teeth (19) are arranged on the conical pair of wheels (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921583583.XU CN211661937U (en) | 2019-09-23 | 2019-09-23 | Special wheel puller for conical coupling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921583583.XU CN211661937U (en) | 2019-09-23 | 2019-09-23 | Special wheel puller for conical coupling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211661937U true CN211661937U (en) | 2020-10-13 |
Family
ID=72730344
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921583583.XU Active CN211661937U (en) | 2019-09-23 | 2019-09-23 | Special wheel puller for conical coupling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211661937U (en) |
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2019
- 2019-09-23 CN CN201921583583.XU patent/CN211661937U/en active Active
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