CN222244608U - Special tool for installing pull rod nut of large hydraulic machine - Google Patents
Special tool for installing pull rod nut of large hydraulic machine Download PDFInfo
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- CN222244608U CN222244608U CN202420051698.9U CN202420051698U CN222244608U CN 222244608 U CN222244608 U CN 222244608U CN 202420051698 U CN202420051698 U CN 202420051698U CN 222244608 U CN222244608 U CN 222244608U
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- shaft
- pull rod
- fixing shaft
- large hydraulic
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- 238000009434 installation Methods 0.000 claims abstract description 26
- 230000000694 effects Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000005242 forging Methods 0.000 description 2
- 238000009776 industrial production Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
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Abstract
The application discloses a special tool for installing a pull rod nut of a large hydraulic machine, which is characterized in that a roller is arranged at the bottom of a frame, a hydraulic cylinder is arranged on the frame and is provided with a piston rod which is vertically arranged, a rotating assembly comprises a thrust bearing, a bearing fixing shaft and a bearing seat, the thrust bearing is provided with a first shaft ring and a second shaft ring which can rotate relatively, the bearing fixing shaft is sleeved on the piston rod, the bearing seat is sleeved on the bearing fixing shaft and is matched with the bearing fixing shaft to form a first installation groove with an upward opening, the thrust bearing is sleeved on the bearing fixing shaft, the first shaft ring is installed in the first installation groove and is clamped between the bearing seat and the bearing fixing shaft, and a bearing platform is connected to the first shaft ring and is arranged coaxially with the piston rod.
Description
Technical Field
The application belongs to the technical field of hydraulic presses, and particularly relates to a special tool for installing a pull rod nut of a large hydraulic press.
Background
In industrial production, the installation of large hydraulic press pull rod nuts is an important task. Because the single weight of the pull rod nut of the large-scale multidirectional hydraulic forging press can reach 2 tons, and the large-scale hydraulic forging press is installed in a foundation pit as shown in fig. 4, when one nut positioned at the lower part of the pull rod is installed in the pull rod nut, the pull rod nut is inconvenient to enter by a lifting tool, and the installation is time-consuming and labor-consuming by adopting a common jack, and is unsafe, the installation efficiency of the nut is greatly limited, so that the technical problem is needed to be solved.
Disclosure of Invention
The embodiment of the application aims to provide a special tool for installing a pull rod nut of a large hydraulic machine, which aims to solve the technical problem of high difficulty in installing the pull rod nut of the large hydraulic machine in the prior art.
In order to achieve the purpose, the technical scheme adopted by the application is that the special tool for installing the pull rod nut of the large hydraulic machine comprises the following components:
The bottom of the frame is provided with rollers;
the hydraulic cylinder is arranged on the frame and provided with a piston rod which is vertically arranged;
The rotating assembly comprises a thrust bearing, a bearing fixing shaft and a bearing seat, wherein the thrust bearing is provided with a first shaft collar and a second shaft collar which can rotate relatively, the bearing fixing shaft is sleeved on the piston rod and is provided with a shaft diameter which is matched with the first shaft collar and the bearing seat, the bearing seat is sleeved on the bearing fixing shaft and is matched with the bearing fixing shaft to form a first mounting groove with an upward opening, the thrust bearing is sleeved on the bearing fixing shaft, and the first shaft collar is mounted in the first mounting groove and is clamped between the bearing seat and the bearing fixing shaft;
The object bearing table is connected to the first shaft collar and is coaxially arranged with the piston rod.
Optionally, a second installation groove with a downward opening is formed in the bottom of the object bearing table, and the second shaft is installed in the second installation groove and a rotation gap is reserved between the second shaft and the bearing fixing shaft.
Optionally, the outer diameter of the second collar is adapted to the diameter of the second mounting groove.
Optionally, the bottom of the bearing fixing shaft extends outwards from inside to outside to bear the first positioning flange of the bearing pedestal;
the bearing seat is abutted to the first positioning flange.
Optionally, the rotating assembly further comprises a connecting sleeve and a locking nut which are connected to the piston rod in a threaded manner;
the bottom of the connecting sleeve extends outwards from inside to outside to bear a second positioning flange of the bearing fixing shaft, and the bearing fixing shaft is abutted to the second positioning flange and clamped between the second positioning flange and the locking nut.
Optionally, two lock nuts are provided.
Optionally, the piston rod forms a step surface perpendicular to the axial direction of the piston rod, and the connecting sleeve is abutted on the step surface.
Optionally, the rotating assembly further includes an end cap detachably connected to the bearing fixing shaft, and a space is formed between the end cap and the second shaft;
At least a portion of the carrying platform is movably mounted in the space.
Optionally, the special tool for installing the pull rod nut of the large hydraulic machine further comprises a guide rod which is connected with the frame in a sliding way;
the guide rod is connected to the bearing seat and parallel to the piston rod.
Optionally, the guide rods are uniformly arranged with four rods around the circumference of the piston rod.
Compared with the prior art, the special tool for installing the pull rod nut of the large hydraulic machine has the beneficial effects that the roller is arranged at the bottom of the frame, so that the frame can be conveniently moved. The hydraulic cylinder is arranged on the frame, the piston rod of the hydraulic cylinder is vertically arranged, the object carrying platform is connected to the piston rod through the thrust bearing and can rotate around the central axis of the piston rod, therefore, the special tool can be placed in the foundation pit, the screw cap is hung on the object carrying platform, then the frame is moved to the position right below the pull rod through the roller, the hydraulic cylinder is operated to jack up the screw cap, when the internal screw thread of the screw cap is in contact with the external screw thread of the pull rod, the screw cap is manually rotated, the thrust bearing is arranged below the object carrying platform, the rotating force required by the object carrying platform is greatly reduced, after the screw cap is completely rotated to the pull rod, the piston rod of the hydraulic cylinder can be operated to fall and move away from the frame, the installation difficulty of the screw cap is greatly reduced, and the installation method is far superior to the prior art.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a cross-sectional view of a large hydraulic press pull rod nut installation special tool provided by an embodiment of the application;
FIG. 2 is a schematic diagram showing the overall structure of a tool for installing a pull rod nut of a large hydraulic machine according to an embodiment of the present application;
FIG. 3 is a schematic diagram showing the overall structure of a tool for installing a pull rod nut of a large hydraulic machine according to the embodiment of the application;
Fig. 4 is a schematic diagram of a working state of a tool special for installing a pull rod nut of a large hydraulic machine according to an embodiment of the application.
The hydraulic cylinder comprises a frame, 102, rollers, 201, a hydraulic cylinder, 202, a piston rod, 301, a thrust bearing, 302, a bearing fixing shaft, 303, a bearing seat, 304, a first shaft collar, 305, a second shaft collar, 306, a first mounting groove, 307, a bearing table, 308, a second mounting groove, 309, a first positioning flange, 310, a connecting sleeve, 311, a locking nut, 312, a second positioning flange, 313, a step surface, 314, an end cover, 315, a gap, 400, a guide rod, 500, a pull rod, 600, a foundation pit, 700 and a nut.
Detailed Description
In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the application 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 scope of the application.
It will be understood that when an element is referred to as being "mounted" or "disposed" on another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
It is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are merely for convenience in describing and simplifying the description based on the orientation or positional relationship shown in the drawings, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be construed as limiting the application.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
Referring to fig. 1 to 4, a tool for installing a pull rod nut of a large hydraulic machine according to an embodiment of the present application will be described. The special tool for installing the pull rod nut of the large hydraulic machine comprises a frame 101, a hydraulic cylinder 201, a rotating assembly and a carrying platform 307, wherein:
The bottom of the frame 101 is provided with a roller 102, so that the frame 101 can be conveniently moved by the roller 102. The hydraulic cylinder 201 is mounted on the frame 101 and provided with a piston rod 202 which is vertically arranged, the rotating assembly comprises a thrust bearing 301, a bearing fixing shaft 302 and a bearing seat 303, the thrust bearing 301 is provided with a first shaft collar 304 and a second shaft collar 305 which can rotate relatively, the bearing fixing shaft 302 is sleeved on the piston rod 202 and provided with a shaft diameter which is matched with the first shaft collar 304 and the bearing seat 303, the bearing seat 303 is sleeved on the bearing fixing shaft 302 and forms a first mounting groove 306 which is upwards opened by matching with the bearing fixing shaft 302, the thrust bearing 301 is sleeved on the bearing fixing shaft, the first shaft collar 304 is mounted inside the first mounting groove 306 and clamped between the bearing seat 303 and the bearing fixing shaft, and the bearing table 307 is connected with the first shaft collar 304 and is coaxially arranged with the piston rod 202.
According to the above-described structure provided in the present embodiment, the first collar 304 of the thrust bearing 301 is held between the bearing housing 303 and the bearing fixing shaft 302 and held stationary, and the bearing fixing shaft 302 is mounted on the piston rod 202 and can be raised or lowered in the height direction by the piston rod 202. The mount 307 is connected to the second shaft ring 305 of the thrust bearing 301 and is rotatable about the central axis of the piston rod 202. Therefore, the special tool can be placed in the foundation pit 600, the nut 700 is lifted to the carrying platform 307, then the frame 101 is moved to the position right below the pull rod 500 through the roller, the hydraulic cylinder 201 is operated to jack up the nut 700, when the internal thread of the nut 700 is in contact with the external thread of the pull rod 500, the nut 700 can be manually rotated, the rotating force required by the carrying platform 307 is greatly reduced because of the thrust bearing 301 below the carrying platform 307, namely, the nut 700 can be easily rotated, the hydraulic cylinder 201 can be continuously operated to be properly jacked to be matched with the nut 700 to rotate and lift up so as to further achieve the labor-saving effect while the nut 700 is rotated, and after the nut 700 is completely rotated to the pull rod 500, the piston rod 202 of the hydraulic cylinder 201 can be operated to fall and move away from the frame 101, so that the mounting difficulty of the nut 700 is greatly reduced, and the installation difficulty of the nut 700 is far superior to the prior art.
In another embodiment of the present application, referring to fig. 1 to 4, a second installation groove 308 with a downward opening is provided at the bottom of the carrying platform 307, and the second shaft collar 305 is installed in the second installation groove 308 and a rotation gap is provided between the second shaft collar and the bearing fixing shaft 302. According to the above structure provided in the present embodiment, the bottom of the carrying platform 307 is sleeved on the second shaft collar 305 through the second mounting groove 308, so that the carrying platform 307 can be effectively prevented from being separated from the second shaft collar 305.
In another embodiment of the present application, referring to fig. 1-4 together, the outer diameter of the second collar 305 is adapted to the diameter of the second mounting groove 308. According to the above structure provided in the present embodiment, the second shaft collar 305 can form a tight and stable connection with the carrying table 307, further improving the connection stability therebetween.
In another embodiment of the present application, referring to fig. 1 to 4, the bottom of the bearing fixing shaft 302 extends outwards from inside to outside to support the first positioning flange 309 of the bearing housing 303, and the bearing housing 303 abuts against the first positioning flange 309. According to the above structure provided in the present embodiment, the first positioning flange 309 can significantly improve the mounting stability of the bearing housing 303, enabling the bearing housing 303 and the bearing fixing shaft 302 to have a relatively determined positional relationship.
In another embodiment of the present application, referring to fig. 1 to 4, the rotating assembly further includes a connecting sleeve 310 and a locking nut 311 screwed to the piston rod 202, wherein a second positioning flange 312 for carrying the bearing fixing shaft 302 extends from the bottom of the connecting sleeve 310 to the outside, and the bearing fixing shaft 302 abuts against the second positioning flange 312 and is clamped between the second positioning flange 312 and the locking nut 311. According to the above structure provided in the present embodiment, the second positioning flange 312 can significantly improve the mounting stability of the bearing fixing shaft 302. In addition, according to the above structure provided in the present embodiment, the mass of the bearing fixing shaft 302 can be significantly reduced, so that the hydraulic cylinder 201 can drive the carrying table 307 to rise or fall with less power, and the effects of energy saving and emission reduction are achieved. Further, in another embodiment of the present application, referring to fig. 1 to 4, two lock nuts 311 are provided, which can further improve the installation stability of the bearing fixing shaft 302.
In another embodiment of the present application, referring to fig. 1 to 4, the piston rod 202 forms a step surface 313 perpendicular to the axial direction thereof, and the connecting sleeve 310 abuts against the step surface 313. According to the above structure provided in the present embodiment, the connecting sleeve 310 can be maintained at a fixed position on the piston rod 202, so that the large hydraulic press pull rod nut mounting special tool provided in the present embodiment can be used more stably.
In another embodiment of the present application, referring to fig. 1 to 4, the rotating assembly further includes an end cap 314 detachably connected to the bearing fixing shaft 302, a space 315 is formed between the end cap 314 and the second shaft 305, and at least a portion of the carrying platform 307 is movably mounted in the space 315. According to the structure provided in the present embodiment, the end cover 314 can effectively prevent the object bearing table 307 and the second shaft 305 from being separated, and has a good and stable connection effect. It should be noted that, in order to avoid the end cap 314 affecting the carrying platform 307, the height of the end cap 314 is generally set lower than the surface of the carrying platform 307 for carrying the nut 700, so as to avoid interfering with the placement of the nut 700.
In another embodiment of the present application, referring to fig. 1 to 4, the tool for installing pull rod nuts of a large hydraulic machine further comprises a guide rod 400 slidably connected to the frame 101, wherein the guide rod 400 is connected to the bearing seat 303 and parallel to the piston rod 202. According to the above structure provided in the present embodiment, the guide bar 400 can significantly improve the stability of the up-and-down movement of the stage 307. Further, in another embodiment of the present application, referring to fig. 1 to 4, four guide rods 400 are uniformly arranged around the circumference of the piston rod 202, so as to have a more stable guiding effect.
The foregoing description of the preferred embodiments of the application is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the application.
Claims (10)
1. A large hydraulic press pull rod nut installation specialized tool, comprising:
A frame (101) with rollers (102) arranged at the bottom;
A hydraulic cylinder (201) mounted on the frame (101) and having a piston rod (202) arranged vertically;
The rotating assembly comprises a thrust bearing (301), a bearing fixing shaft (302) and a bearing seat (303), wherein the thrust bearing (301) is provided with a first shaft collar (304) and a second shaft collar (305) which can rotate relatively, the bearing fixing shaft (302) is sleeved on the piston rod (202) and is provided with a shaft diameter which is matched with the first shaft collar (304) and the bearing seat (303), the bearing seat (303) is sleeved on the bearing fixing shaft (302) and is matched with the bearing fixing shaft (302) to form a first mounting groove (306) with an upward opening, the thrust bearing (301) is sleeved on the bearing fixing shaft, and the first shaft collar (304) is mounted inside the first mounting groove (306) and is clamped between the bearing seat (303) and the bearing fixing shaft;
And the object bearing table (307) is connected with the first shaft collar (304) and is arranged coaxially with the piston rod (202).
2. The large hydraulic press pull rod nut installation special tool as set forth in claim 1, wherein:
The bottom of the object bearing table (307) is provided with a second installation groove (308) with a downward opening, and the second shaft (305) is installed in the second installation groove (308) and a rotation gap is reserved between the second shaft and the bearing fixing shaft (302).
3. The large hydraulic press pull rod nut installation special tool of claim 2, wherein:
The outer diameter of the second shaft (305) is adapted to the diameter of the second mounting groove (308).
4. The large hydraulic press pull rod nut installation special tool as set forth in claim 1, wherein:
The bottom of the bearing fixing shaft (302) extends outwards from inside to outside to bear a first positioning flange (309) of the bearing seat (303);
The bearing seat (303) is abutted against the first positioning flange (309).
5. The large hydraulic press pull rod nut installation special tool as set forth in claim 1, wherein:
the rotating assembly further comprises a connecting sleeve (310) and a locking nut (311) which are connected with the piston rod (202) in a threaded manner;
The bottom of the connecting sleeve (310) extends outwards from inside to outside to bear a second positioning flange (312) of the bearing fixing shaft (302), and the bearing fixing shaft (302) is abutted to the second positioning flange (312) and clamped between the second positioning flange (312) and the locking nut (311).
6. The large hydraulic press pull rod nut installation tool of claim 5, wherein:
the lock nuts (311) are arranged in two.
7. The large hydraulic press pull rod nut installation tool of claim 5, wherein:
The piston rod (202) forms a step surface (313) perpendicular to the axial direction of the piston rod, and the connecting sleeve (310) is abutted against the step surface (313).
8. The large hydraulic press pull rod nut installation special tool as set forth in claim 1, wherein:
The rotating assembly further includes an end cap (314) removably coupled to the bearing securing shaft (302), the end cap (314) and the second shaft (305) defining a space (315) therebetween;
at least a portion of the table (307) is movably mounted within the space (315).
9. The large hydraulic press pull rod nut installation special tool as set forth in claim 1, wherein:
the special tool for installing the pull rod nut of the large hydraulic machine further comprises a guide rod (400) which is connected to the frame (101) in a sliding manner;
The guide rod (400) is connected to the bearing housing (303) and is parallel to the piston rod (202).
10. The large hydraulic machine pull rod nut installation tool of claim 9, wherein:
four guide rods (400) are uniformly arranged around the circumference of the piston rod (202).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420051698.9U CN222244608U (en) | 2024-01-10 | 2024-01-10 | Special tool for installing pull rod nut of large hydraulic machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420051698.9U CN222244608U (en) | 2024-01-10 | 2024-01-10 | Special tool for installing pull rod nut of large hydraulic machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN222244608U true CN222244608U (en) | 2024-12-27 |
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ID=93985274
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202420051698.9U Active CN222244608U (en) | 2024-01-10 | 2024-01-10 | Special tool for installing pull rod nut of large hydraulic machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN222244608U (en) |
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2024
- 2024-01-10 CN CN202420051698.9U patent/CN222244608U/en active Active
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