CN212123123U - Centering adjustment and installation tool for large-sized cylindrical splicing piece - Google Patents
Centering adjustment and installation tool for large-sized cylindrical splicing piece Download PDFInfo
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- CN212123123U CN212123123U CN202020329320.2U CN202020329320U CN212123123U CN 212123123 U CN212123123 U CN 212123123U CN 202020329320 U CN202020329320 U CN 202020329320U CN 212123123 U CN212123123 U CN 212123123U
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Abstract
A centering adjustment and installation tool for a large-scale cylindrical splicing member comprises a first stud and a second stud, the centering adjustment and installation tool comprises a retainer, two supporting rollers, two rolling shafts and rolling bearings, the two rolling shafts are respectively and horizontally arranged at the front part and the rear part of the retainer, the supporting rollers are sleeved on the rolling shafts through the rolling bearings and can rotate, the axes of the two supporting rollers are positioned on the same horizontal plane, and the minimum distance between the two supporting rollers is smaller than the diameters of the first stud and the second stud; the supporting rollers of the plurality of centering adjusting and mounting tools reach the same horizontal position after being adjusted, and the first stud and the second stud are respectively placed between the two supporting rollers of the plurality of centering adjusting and mounting tools, so that the centering adjusting and mounting of the large-sized cylindrical splicing piece are realized. The utility model provides a centering adjustment of various large-scale cylinder class concatenation parts and the difficulty of installation, have simple structure, convenient operation, respond well advantage.
Description
Technical Field
The utility model relates to a frock utensil for the machine-building especially relates to a centering adjustment and mounting tool for large-scale cylinder splice, belongs to the machine-building technical field.
Background
In the production and manufacturing process of large-scale equipment, such as marine diesel engines, cleaning, centering, adjusting, disassembling and assembling work of large-scale cylindrical parts is often encountered, and the cylindrical parts of the large-scale engineering machinery equipment are generally heavy or long and have high centering, disassembling and assembling requirements.
For example, a long stud splice, such as that shown in FIG. 1, having an overall length L1 of about 9 meters, requires that the long stud be manufactured in segments and assembled together after manufacture for installation height and manufacturing reasons. The long stud is formed by splicing a first stud a (with the length L2 of about 4.5 meters and the weight of about 120Kg) and a second stud b (with the length L3 of about 4.5 meters and the weight of about 120Kg), wherein the end parts of the first stud a and the second stud b are provided with external threads, and the middle parts of the first stud a and the second stud b are connected through a threaded connecting sleeve c, see fig. 2, and internal threads are arranged inside the threaded connecting sleeve c. When the first stud a and the second stud b are manufactured and assembled, the first stud a and the second stud b are required to be adjusted to be on a same level, and the screw thread at the end part can be smoothly screwed into the screw thread connecting sleeve c; if the first stud a and the second stud b are not on the same level, the thread of the first stud a or the second stud b has an angle difference with the thread connecting sleeve c, and the thread is easy to be locked during screwing, so that the first stud a and the second stud b cannot be spliced together.
To sum up, the following problems easily appear in the centering installation process of the current large-scale cylindrical splicing piece:
1) the first stud a and the second stud b have the centering adjustment problem before installation, the axes of the first stud a and the second stud b need to be adjusted to the same level, otherwise, the problem that the first stud a and the second stud b cannot be connected due to thread jamming easily occurs;
2) the large cylindrical splicers are heavy, so it is difficult to adjust and center the splicers manually.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art not enough, provide a centering adjustment and mounting tool for large-scale cylinder splice, centering adjustment and the difficult problem of installation when solving large-scale cylinder class spare part concatenation reach simple structure, convenient operation's good effect.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a centering adjustment and installation tool for a large cylindrical splice, the large cylindrical splice comprising a first stud and a second stud, characterized in that: the centering adjustment and installation tool comprises a retainer, support rollers, rolling shafts and rolling bearings, wherein the two rolling shafts are respectively and horizontally arranged at the front part and the rear part of the retainer, the two support rollers are respectively sleeved on the two rolling shafts through the rolling bearings and can rotate, the axes of the two support rollers are positioned on the same horizontal plane, and the minimum distance between the two support rollers is smaller than the diameters of the first stud and the second stud; the supporting rollers of the plurality of centering adjusting and installing tools reach the same horizontal position after being adjusted, and the first stud and the second stud are respectively placed between the two supporting rollers of the plurality of centering adjusting and installing tools, so that the centering adjusting and installing of the large-sized cylindrical splicing piece are realized.
Furthermore, the retainer comprises a base, a pair of front brackets and a pair of rear brackets; the front support and the rear support are respectively welded on the front part and the rear part of the base in an upright mode and are symmetrical in position, supporting holes used for penetrating the rolling shafts are respectively formed in the upper portion of the front support and the upper portion of the rear support, and the axes of all the supporting holes are all located on the same horizontal plane.
Further, the rolling shaft comprises a shaft part and a shoulder, the diameter of the shoulder is larger than that of the shaft part, and a retainer groove is formed in the tail part of the shaft part.
Furthermore, the two rolling shafts respectively penetrate through the supporting holes of the front support and the rear support, and elastic check rings are embedded in the check ring grooves.
Furthermore, the supporting roller is a waist drum-shaped component, the periphery of the supporting roller is a drum-shaped curved surface, and two ends of a central inner hole are provided with bearing holes.
Furthermore, the two rolling bearings are respectively embedded into the bearing holes of the supporting roller and sleeved on the rolling shaft, and a gasket is respectively arranged on the outer sides of the two rolling bearings.
Further, the material hardness of the supporting roller is less than that of the large-sized cylindrical splicing piece.
Compared with the prior art, the utility model discloses following effect has been reached:
1) the first stud and the second stud are placed on the centering adjusting and mounting tool which is adjusted to reach the same horizontal position, the center lines of the first stud and the second stud can be quickly and accurately adjusted to the same horizontal line between the two supporting rollers, the concentricity of the stud thread and the threaded connecting sleeve is ensured, the first stud and the second stud can be smoothly screwed into the threaded connecting sleeve, and meanwhile, the splicing straightness of the first stud and the second stud is ensured.
2) The utility model discloses can bear great weight, realize the support to large-scale cylinder splicing.
3) The supporting roller uses a rolling bearing supporting structure, so that the frictional resistance is reduced, and the stable and smooth rotation of the supporting roller is realized.
4) The periphery of the supporting roller adopts a drum-shaped curved surface, so that the contact area with a large-sized cylindrical splicing piece is reduced, and the stud part can easily rotate on the drum-shaped curved surface, so that the effects of labor saving in operation, safety, reliability and convenience in adjustment and installation are achieved.
5) The supporting rollers are made of relatively soft materials, so that the surface quality of the large-sized cylindrical splicing piece is protected, and the surface is prevented from being damaged.
Drawings
FIG. 1 is a schematic structural diagram of a large cylindrical splicing element.
Fig. 2 is an enlarged view of a portion a of fig. 1.
Fig. 3 is a schematic structural diagram of the present invention.
Fig. 4 is a left side view of fig. 3.
Fig. 5 is a schematic structural view of the cage.
Fig. 6 is a schematic view of the structure of the roll axis.
Fig. 7 is a schematic structural view of the support roller.
Fig. 8 is a usage state diagram of the present invention.
Fig. 9 is a transverse view of fig. 8.
In the figure, the position of the upper end of the main shaft,
a-a first stud, b-a second stud, c-a threaded connecting sleeve, L1-total length, L2-length of the first stud, L3-length of the second stud, 01-a centering adjusting and installing tool, 1-a retainer, 11-a base, 12-a front support, 13-a rear support, 14-a supporting hole, 2-a supporting roller, 21-a bearing hole, 22-a crowned surface, 3-an elastic retainer ring, 4-a rolling shaft, 41-a shaft part, 42-a shoulder, 43-a retainer ring groove, 5-a washer and 6-a rolling bearing.
Detailed Description
The following description will be made in detail with reference to the accompanying drawings and examples for the centering adjustment and installation tool for large cylindrical splices, but the scope of the invention should not be limited thereto.
The utility model is used for centering adjustment and installation of large-scale cylinder concatenation piece please refer to and show figure 1, large-scale cylinder concatenation piece includes first double-screw bolt an and second double-screw bolt b, and tip between them is equipped with the external screw thread, and this first double-screw bolt a and second double-screw bolt b are connected through being equipped with internal screw thread adapter sleeve c, see figure 2.
With reference to fig. 3 and 4, the centering adjustment and mounting tool comprises a cage 1, two support rollers 2, two rolling shafts 4 and four rolling bearings 6.
The retainer 1 plays a role in fixing and supporting, the size of the retainer can be manufactured according to the external dimension of the large-sized cylindrical splicing piece, and if the parts are lighter, the retainer 1 can also be manufactured into an adjustable structure. Referring to fig. 5, the holder 1 includes a base 11, a pair of front brackets 12, and a pair of rear brackets 13. The base 11 is placed on a flat ground, the pair of front brackets 12 are vertically welded on the front part of the base 11, the pair of rear brackets 13 are vertically welded on the rear part of the base 11 and are symmetrical to the front brackets 12 in position, the upper parts of the pair of front brackets 12 and the pair of rear brackets 13 are respectively provided with a penetrating support hole 14 for penetrating the rolling shaft 4, and the axes of all the support holes 14 are all positioned on the same horizontal plane.
Referring to fig. 6, the rolling shaft 4 includes a shaft portion 41 and a shoulder 42 connected to a head portion of the shaft portion 41, the shoulder 42 has a diameter larger than that of the shaft portion 41, and a retainer groove 43 is formed at a tail portion of the shaft portion 41.
Referring to fig. 7, the supporting roller 2 is a drum-shaped member, the outer periphery of which is a drum-shaped curved surface 22 with a convex middle, and two ends of the central inner hole are provided with bearing holes 21 for mounting the rolling bearings 6. The drum-shaped curved surface 22 reduces the contact area between the supporting roller 2 and the large-sized cylindrical splicing piece, reduces the friction force between the supporting roller 2 and the large-sized cylindrical splicing piece, enables the splicing piece to easily rotate on the supporting roller 2, and achieves the effects of facilitating the rotation of the splicing piece, saving labor in operation and facilitating the adjustment and installation of the splicing piece. The supporting rollers 2 are made of relatively soft materials, and the hardness of the materials is smaller than that of the materials for manufacturing the large-sized cylindrical splicing piece, so that the surface quality of the large-sized cylindrical splicing piece is protected, and the surface is prevented from being damaged.
Referring to fig. 3, the four rolling bearings 6 are respectively inserted into the bearing holes 21 at the two ends of the two supporting rollers 2. Referring to fig. 3 and 4, one of the rolling shafts 4 passes through the support hole 14 of the front bracket 12 at the front portion of the base 11 and the bearing holes 21 of the two rolling bearings 6 on one of the support rollers 2, a washer 5 is respectively installed on the outer sides of the two rolling bearings 6 to keep the support roller 2 at a central position, the shoulder 42 of the rolling shaft 4 abuts against the side surface of the front bracket 12, the tail portion of the rolling shaft passes through the other support hole 14 of the front bracket 12, and an elastic retainer ring 3 is embedded in the retainer ring groove 43 to axially limit and fix the rolling shaft 4. By means of the rolling bearing 6, the support roller 2 can rotate around the rolling shaft 4 smoothly and smoothly, and has a certain bearing capacity. Likewise, the other rolling shaft 4 is rotatably mounted on the rolling shaft 4 via two rolling bearings 6. After the installation is finished, the supporting roller 2 depends on the rolling shaft 4 and the elastic retainer ring 3 to be connected with the retainer 1, so that the whole device is prevented from loosening and separating due to vibration, movement or acting force and the like. Referring to fig. 4, after assembly, the axes of the two support rollers 2 are in the same horizontal plane, and the minimum distance between the two support rollers 2 is smaller than the diameter of the first stud a and the second stud b, see fig. 9.
In the connection process of the long stud splicing piece of the diesel engine, the utility model discloses an operation as follows:
1) placing a plurality of the centering adjustment and installation tools 01 for the large-sized cylindrical splices on a relatively flat ground, see fig. 8, and then finely adjusting the centering adjustment and installation tools 01 so that the centers of all the supporting rollers 2 are in the same horizontal plane position;
2) horizontally hoisting a first stud a between the support rollers 2 of the two centering adjustment and installation tools 01 on the left side, and stably placing the stud a as shown in FIG. 9;
3) similarly, the second stud b is hung on the supporting rollers 2 of the two centering adjusting and mounting tools 01 on the right side and is placed stably;
4) smoothly screwing the threaded connecting sleeve c onto the end part of the first stud a;
5) adjusting the second stud b to be stably close to the right side of the threaded connecting sleeve c, and adjusting the axis of the threaded connecting sleeve c to be collinear with the axis of the second stud b;
6) and keeping the first stud a still, and stably rotating the second stud b on the centering adjustment and installation tool 01 to enable the thread of the second stud b to be smoothly screwed into the internal thread of the thread connecting sleeve c, so that the centering adjustment and installation of the large-sized cylindrical splicing piece are realized.
The operation of the present invention in the disassembling process of the long stud splicing piece of the diesel engine is described below with reference to fig. 8 and 9:
1) placing a plurality of centering adjusting and installing tools 01 on a relatively flat ground, and then finely adjusting the centering adjusting and installing tools 01 to enable the centers of two supporting rollers 2 to be on the same horizontal plane;
2) the spliced whole long bolt splicing piece is stably placed between the support rollers 2 of the well adjusted centering adjustment and installation tool 01;
3) at the moment, the first stud a and the second stud b are concentric with the axis of the threaded connecting sleeve c, so that the threaded connecting sleeve can be easily disassembled; namely, the first stud a is kept still, and the second stud b is stably rotated on the centering adjustment and installation tool 01, so that the second stud b can be smoothly screwed out of the threaded connecting sleeve c.
The above is a preferred embodiment of the present invention, and the protection scope of the present invention is not limited thereto. The scope of the present invention also includes other modifications and substitutions apparent to those skilled in the art.
The utility model provides a problem of the centering adjustment and the installation of various heavier, longer large-scale cylinder class concatenation parts, be applicable to the cleanness of large-scale cylinder concatenation piece, centering adjustment and installation operation, have simple structure, convenient operation, respond well advantage.
Claims (7)
1. A centering adjustment and installation tool for a large cylindrical splice, the large cylindrical splice comprising a first stud and a second stud, characterized in that: the centering adjustment and installation tool comprises a retainer, support rollers, rolling shafts and rolling bearings, wherein the two rolling shafts are respectively and horizontally arranged at the front part and the rear part of the retainer, the two support rollers are respectively sleeved on the two rolling shafts through the rolling bearings and can rotate, the axes of the two support rollers are positioned on the same horizontal plane, and the minimum distance between the two support rollers is smaller than the diameters of the first stud and the second stud; the supporting rollers of the plurality of centering adjusting and installing tools reach the same horizontal position after being adjusted, and the first stud and the second stud are respectively placed between the two supporting rollers of the plurality of centering adjusting and installing tools, so that the centering adjusting and installing of the large-sized cylindrical splicing piece are realized.
2. A centering adjustment and installation tool for large cylindrical splices, according to claim 1, wherein: the retainer comprises a base, a pair of front brackets and a pair of rear brackets; the front support and the rear support are respectively welded on the front part and the rear part of the base in an upright mode and are symmetrical in position, supporting holes used for penetrating the rolling shafts are respectively formed in the upper portion of the front support and the upper portion of the rear support, and the axes of all the supporting holes are all located on the same horizontal plane.
3. A centering adjustment and installation tool for large cylindrical splices, according to claim 2, wherein: the rolling shaft comprises a shaft part and a shoulder, the diameter of the shoulder is larger than that of the shaft part, and a retainer groove is formed in the tail part of the shaft part.
4. A centering adjustment and installation tool for large cylindrical splices according to claim 3, wherein: the two rolling shafts respectively penetrate through the supporting holes of the front support and the supporting holes of the rear support, and elastic check rings are embedded in the check ring grooves.
5. A centering adjustment and installation tool for large cylindrical splices, according to claim 1, wherein: the supporting rollers are waist drum-shaped components, the peripheries of the supporting rollers are drum-shaped curved surfaces, and two ends of a central inner hole are provided with bearing holes.
6. A centering adjustment and installation tool for large cylindrical splices according to claim 5, wherein: the two rolling bearings are respectively embedded into the bearing holes of the supporting roller and sleeved on the rolling shaft, and a gasket is respectively arranged on the outer sides of the two rolling bearings.
7. A centering adjustment and installation tool for large cylindrical splices, according to claim 1, wherein: the material hardness of the supporting roller is less than that of the large-sized cylindrical splicing piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020329320.2U CN212123123U (en) | 2020-03-17 | 2020-03-17 | Centering adjustment and installation tool for large-sized cylindrical splicing piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020329320.2U CN212123123U (en) | 2020-03-17 | 2020-03-17 | Centering adjustment and installation tool for large-sized cylindrical splicing piece |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212123123U true CN212123123U (en) | 2020-12-11 |
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ID=73673456
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020329320.2U Active CN212123123U (en) | 2020-03-17 | 2020-03-17 | Centering adjustment and installation tool for large-sized cylindrical splicing piece |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212123123U (en) |
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2020
- 2020-03-17 CN CN202020329320.2U patent/CN212123123U/en active Active
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