CN212479766U - High-frequency vibration heavy-load connecting device - Google Patents
High-frequency vibration heavy-load connecting device Download PDFInfo
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- CN212479766U CN212479766U CN202020632385.4U CN202020632385U CN212479766U CN 212479766 U CN212479766 U CN 212479766U CN 202020632385 U CN202020632385 U CN 202020632385U CN 212479766 U CN212479766 U CN 212479766U
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- frequency vibration
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Abstract
The utility model discloses a high-frequency vibration heavy-load connecting device, which is characterized by comprising a connecting part connected with a connecting rod, wherein the connecting part is of a detachable structure; the connecting part comprises a first connecting part and a second connecting part; the first connecting part and the second connecting part are connected through a fastening device; also discloses a connecting device of the grinding roller pull rod and the oil cylinder piston rod, which adopts a high-frequency vibration heavy-load connecting device. The utility model solves the problem that the high-frequency vibration connecting device is difficult to disassemble because the high-frequency vibration connecting device is meshed together due to the deformation of the threads caused by bearing the push-pull force of the up-and-down impact for a long time, in particular to the problem that the nut between the pull rod thread of the grinding roller and the piston rod of the oil cylinder can not be disassembled; on the premise of not changing a grinding roller pull rod and an oil cylinder, the original connecting device is redesigned and improved, the labor intensity of maintainers is reduced, the replacement time is greatly shortened, and the stop rate of the medium-speed coal mill is reduced.
Description
Technical Field
The utility model discloses be applied to the powder process system of trades such as metallurgy, thermoelectricity, building materials, chemical industry, especially a connection that needs grinding roller pull rod and hydro-cylinder piston rod among the blast furnace coal injection powder process system of a large amount of use soft coals.
Background
When the medium-speed coal mill (MPF2116) grinds coal, the grinding roller is loaded on the grinding disc by the pulling force of the piston rod of the oil cylinder, then the grinding roller rotates back and forth to roll the coal blocks, and the coal blocks are ground into powder for the blast furnace to spray coal. The piston rod of the oil cylinder continuously vibrates in a high-frequency stretching mode in the process because the coal is distributed unevenly and materials with different sizes are mixed in the coal powder; the threads of the connecting device for the grinding roller pull rod and the oil cylinder piston rod bear the push-pull force of up-down impact for a long time, and the threads are deformed and meshed together; the connecting device is difficult to detach when the oil cylinder is replaced, sometimes the connecting device can only be slowly cut off by gas welding without detaching, the process must ensure that the grinding roller pull rod thread and the oil cylinder piston rod thread can not be damaged, otherwise the grinding roller pull rod and the oil cylinder can only be scrapped to increase the replacement workload and the purchase cost.
As shown in figure 1, the connecting device of a grinding roller pull rod 1 and an oil cylinder piston rod 2 of a domestic medium-speed coal grinding mill (MPF2116) is connected by an integral round nut 3; after connecting device used one section, the screw thread can take place to draw the bite and be in the same place, dismantles very difficultly or can't dismantle, leads to changing hydro-cylinder worker intensity of labour big, inefficiency and easily takes place the personal safety problem.
SUMMERY OF THE UTILITY MODEL
The invention of the utility model aims to: aiming at the existing problems, the high-frequency vibration heavy-load connecting device is provided, and the problem that the high-frequency vibration connecting device is difficult to detach due to the fact that threads are deformed and meshed together because the high-frequency vibration connecting device bears the push-pull force of vertical impact for a long time is solved.
The utility model adopts the technical scheme as follows:
the utility model relates to a high-frequency vibration heavy load connecting device, include the adapting unit who is connected with the connecting rod, adapting unit is detachable construction.
Above structure, because adapting unit is detachable construction, can direct convenient dismantlement and change when connecting device needs to be changed.
Further, the connecting part comprises a first connecting part and a second connecting part; the first connecting part and the second connecting part are connected through a fastening device.
In the structure, the first connecting part and the second connecting part are connected through the fastening device to form a detachable structure, and the connecting part and the fastening device are disconnected to be detachable and fastened after connection.
Further, the connecting part comprises a connecting part and a butt joint part; the cross-sectional area of the butt joint part is larger than that of the connecting part.
In the structure, the cross section area of the butt joint part is larger than that of the connecting part, so that part of the butt joint part protrudes out of the connecting part, and when the connecting parts are connected, the fastening device is conveniently connected on the protruding part.
Further, the connecting part and the butt joint part are integrated.
Above structure, connecting portion and butt joint portion formula as an organic whole can connect as a whole, firm in connection.
Furthermore, the connecting part is of a hollow structure, an internal thread is arranged in the hollow structure, and the internal thread is matched and connected with an external thread on the connecting rod.
Above structure, connecting portion carry out threaded connection through hollow structure's internal thread and connecting rod, connect the dismantlement convenience.
Further, the connecting part and the butt joint part are both of hollow structures.
Above structure, connecting portion and butt joint portion all are hollow structure, and the connecting rod can directly go deep into butt joint portion internal connection.
Furthermore, a reinforcing hole is arranged on the butt joint part; the fastening means includes a bolt connecting the reinforcement holes.
With the structure, two ends of the bolt are respectively connected with the reinforcing holes in the two butt joint parts, so that the two butt joint parts are fastened.
Furthermore, the butt joint part is provided with at least two reinforcing holes.
With the structure, the butt joint parts are connected with a plurality of reinforcing holes through a plurality of bolts respectively for reinforcement.
Furthermore, the contact surfaces between the first butt joint part and the second butt joint part are respectively a concave surface and a convex surface, and the convex surface is embedded into the concave surface.
Above structure, because the contact surface is concave surface and convex surface respectively, reduce the injury of horizontal shearing force to the bolt and ensure that the connecting rod is on same straight line.
The utility model relates to a grinding roller pull rod and hydro-cylinder piston rod's connecting device adopts high-frequency vibration heavy load connecting device as connecting device.
Above structure, through high-frequency vibration heavy load connecting device connection grinding roller pull rod and hydro-cylinder piston rod, convenient dismantlement and installation.
To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:
1. the quick connection and the disassembly between the connecting rods are realized, particularly the connection between the grinding roller pull rod and the oil cylinder piston rod is realized, the oil cylinder is easy to disassemble and assemble, the labor intensity of workers is reduced, and the labor productivity is improved.
2. The downtime is reduced, and the energy is saved and the consumption is reduced for enterprises; on the premise of not changing a grinding roller pull rod and an oil cylinder, the original connecting device is redesigned and improved, the labor intensity of maintainers is reduced, the replacement time is greatly shortened, and the stop rate of the medium-speed coal mill is reduced.
3. Reducing personal safety accidents.
Drawings
Fig. 1 is a schematic structural diagram of a conventional grinding roller pull rod and oil cylinder connecting device.
FIG. 2 is a schematic structural diagram of a first connecting part in the embodiment.
FIG. 3 is a schematic structural diagram of a second connecting member in the embodiment.
FIG. 4 is a schematic structural diagram of a grinding roller pull rod and cylinder piston rod connecting device in the embodiment.
The labels in the figure are: the grinding roller pull rod is 1, the oil cylinder piston rod is 2, the round nut is 3, the connecting part I is 4, the connecting part I is 41, the connecting part I is 42, the butt joint part I is 43, the hollow structure I is 44, the reinforcing hole I is 44, the connecting part II is 5, the connecting part II is 51, the butt joint part II is 52, the hollow structure II is 53, and the reinforcing hole II is 54.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings.
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
The utility model discloses a high-frequency vibration heavy load connecting device, include the adapting unit who is connected with the connecting rod, adapting unit is detachable construction.
As shown in fig. 2, 3 and 4, in the embodiment, the connection part of the detachable structure includes a first connection part 4 and a second connection part 5; the first connecting part 4 and the second connecting part 5 are connected through a fastening device.
The first connecting part 4 comprises a first connecting part 41 and a first butting part 42; the first connecting part 41 and the first butting part 42 are integrated; the connecting part I41 and the butting part I42 are both internally provided with a hollow structure I43; at least two reinforcing holes I44 are arranged on the butt joint part I41; the second connecting part 5 comprises a second connecting part 51 and a second butting part 52; the second connecting part 51 and the second butting part 52 are integrated; the connecting part II 51 and the butting part II 52 are both hollow structures II 53; the second butt joint part 52 is provided with at least two reinforcing holes 54; the fastening means includes bolts connecting the reinforcement holes 44 and 54.
In an embodiment, for the convenience of installation and removal of the fastening device, the cross-sectional area of the abutting portion of the connecting member is larger than that of the connecting portion, i.e., the diameter of the abutting portion is larger than that of the connecting portion, and the portion where the reinforcing hole is installed is not on the same horizontal line of the connecting portion, so that the installation and removal of the reinforcing hole and the bolt are not affected when connecting.
For the connection between convenient adapting unit and the connecting rod, general connecting portion are hollow structure, are equipped with the internal thread among the hollow structure, and the external screw thread cooperation on internal thread and the connecting rod is connected.
In order to reduce the damage of the transverse shearing force to the bolts and ensure that the connecting rods are in the same straight line, the contact surfaces between the first butt joint part 42 and the second butt joint part 52 are respectively a convex surface and a concave surface, and the convex surface is embedded into the concave surface.
In one embodiment, the utility model discloses a connecting device of a grinding roller pull rod and an oil cylinder piston rod, which adopts a high-frequency vibration heavy-load connecting device as the connecting device; two ends of the high-frequency vibration heavy-load connecting device are respectively connected with the grinding roller pull rod and the oil cylinder piston rod.
The utility model discloses do not change any size of current grinding roller pull rod and hydro-cylinder, only carry out the re-optimization design improvement to former connecting device, reform transform with low costsly, it is convenient to reform transform.
Effect comparison before and after improvement:
the oil cylinder replacement method has the advantages that the time required for replacing the oil cylinder is shortened to be within 3 hours, and the oil cylinder replacement work can be easily completed by only 4 persons in the past 12 hours or more, so that 8 persons are required originally, and the labor efficiency is improved by more than 50%;
the grinding roller pull rod and the oil cylinder are simply and quickly disassembled and installed; originally, because the diameter of the round nut is large, the pull rod, the round nut and the piston rod of the oil cylinder are difficult to be ensured to be on the same straight line when the threads are screwed, and the screwing is difficult and time-consuming; when the threads of the round nuts are pulled down and meshed together, the round nuts can be cut off slowly only by using the cutting knife, and the workload is multiplied.
And thirdly, due to the matched design of the concave-convex surface of the connecting device, the damage of transverse shearing force to the bolt is reduced, and the pull rod and the oil cylinder are ensured to be on the same straight line.
The utility model discloses an installation use: the improved two connecting devices are respectively arranged at the pull rod end of the grinding roller and the piston rod end of the oil cylinder; the concave-convex surfaces of the connecting devices at the two ends are matched; fastening the connecting devices at the two ends by using high-strength bolts; the connecting device at the oil cylinder end is installed at ordinary times, and when the oil cylinder needs to be replaced at every time, the connecting device does not need to be disassembled, and only the high-strength connecting bolt needs to be disassembled to be replaced in a whole set.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (9)
1. A high-frequency vibration heavy-load connecting device is characterized by comprising a connecting part connected with a connecting rod, wherein the connecting part is of a detachable structure; the connecting member includes a connecting portion and a butting portion.
2. The heavy-duty connector apparatus for high frequency vibration according to claim 1, wherein said connecting member includes a first connecting member and a second connecting member; the first connecting part and the second connecting part are connected through a fastening device; the first connecting part comprises a first connecting part and a first butt joint part; the second connecting part comprises a second connecting part and a second butting part.
3. A heavy-duty connector as set forth in claim 1, wherein said abutment portion has a cross-sectional area greater than that of said connecting portion.
4. A heavy-duty connector as recited in claim 1, wherein said connecting portion and said abutment portion are integral.
5. A heavy-duty connector as recited in claim 1, wherein said connector is a hollow structure having internal threads that are engaged with external threads on the connecting rod.
6. A heavy-duty connector as recited in claim 5, wherein said connecting portion and said abutment portion are both hollow.
7. A high-frequency vibration heavy-duty connecting device according to claim 2, wherein said abutting portion is provided with a reinforcing hole; the fastening means includes a bolt connecting the reinforcement holes.
8. A high-frequency vibration heavy-duty connecting device as recited in claim 7, wherein said abutting portion is provided with at least two reinforcing holes.
9. A high-frequency vibration heavy-duty connecting device as recited in claim 2, wherein said contact surfaces between said first abutting portion and said second abutting portion are respectively a concave surface and a convex surface, and said convex surface is embedded in said concave surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020632385.4U CN212479766U (en) | 2020-04-23 | 2020-04-23 | High-frequency vibration heavy-load connecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020632385.4U CN212479766U (en) | 2020-04-23 | 2020-04-23 | High-frequency vibration heavy-load connecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212479766U true CN212479766U (en) | 2021-02-05 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020632385.4U Active CN212479766U (en) | 2020-04-23 | 2020-04-23 | High-frequency vibration heavy-load connecting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212479766U (en) |
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2020
- 2020-04-23 CN CN202020632385.4U patent/CN212479766U/en active Active
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