CN210461237U - Hydraulic cylinder pull rod pin shaft assembly - Google Patents
Hydraulic cylinder pull rod pin shaft assembly Download PDFInfo
- Publication number
- CN210461237U CN210461237U CN201921418548.2U CN201921418548U CN210461237U CN 210461237 U CN210461237 U CN 210461237U CN 201921418548 U CN201921418548 U CN 201921418548U CN 210461237 U CN210461237 U CN 210461237U
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- shaft
- pull rod
- bearing section
- axle
- pin shaft
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Abstract
The utility model discloses a solve and be the shoulder shaft between the main aspects of round pin axle and the intermediate bearing section, the round pin axle stress concentration and the condition such as fracture appear easily, disclose a hydraulic cylinder pull rod pin axle subassembly, including round pin axle and two location end covers, sell epaxial two end shafts and the bearing section of being equipped with, the diameter of two end shafts is less than the diameter of bearing section respectively, the both ends of bearing section are connected with two end shafts through circular cone transition portion respectively, be equipped with axle sleeve portion and cap on the location end cover, during the mounting hole on the hydraulic pull rod is packed into to axle sleeve portion, two end shafts are packed into respectively in axle sleeve portion, the location end cover pass through the threaded connection mode respectively with the hydraulic pull rod, two end shaft fixed connection. The conical transition part improves the problem of stress concentration at the original step of the pin shaft, and the shaft sleeve part can absorb the impact force between the two end shafts and the mounting hole of the hydraulic pull rod, so that the stress concentration on the two end shafts can be relieved, and the problem of pin shaft fracture is solved. The utility model relates to a grind technical field of equipment immediately.
Description
Technical Field
The utility model relates to a grind the technical field of equipment immediately, especially relate to a pneumatic cylinder pull rod pin shaft subassembly.
Background
In the prior art, a pull rod pin shaft of a CKP vertical mill hydraulic cylinder is one of components of a vertical mill hydraulic system, and is mainly used for transmitting the grinding pressure of the cylinder to a grinding roller and keeping the cylinder to synchronously transmit load, so that materials are ground. In order to facilitate installation, two ends of the pin shaft are respectively arranged as a large-diameter end, a large end for short, and a small-diameter end, a small end for short, the diameter of the large end can be adapted to and fixed with the aperture of the hydraulic pull rod, the diameter of the small end is smaller than the aperture of the hydraulic pull rod, and a pin shaft positioning end cover is needed to position and fix the small end, so that the pin shaft is conveniently installed in the aperture of the hydraulic pull rod.
SUMMERY OF THE UTILITY MODEL
The utility model discloses aim at solving one of the above-mentioned technical problem at least, a pneumatic cylinder pull rod pin axle subassembly is provided, circular cone transition portion and first end axle are passed through respectively at the both ends of selling epaxial bearing section, the second end axle is connected, improve the problem of the stress concentration of the original ladder department of round pin axle, first end axle and second end axle are equipped with the axle sleeve portion of location end cover respectively simultaneously, can absorb a part of impact force between the mounting hole of two end axles and hydraulic pull rod, be favorable to alleviating the epaxial stress concentration of first end axle and second end, the double-barrelled is together, solve the cracked problem of round pin axle effectively.
The utility model discloses a realize through following technical scheme: the utility model provides a hydraulic cylinder pull rod pin axle subassembly, including round pin axle and two location end covers, sell epaxial first end axle that is equipped with, second end axle and be used for connecting the bearing section of founding the mill rocking arm, the diameter of first end axle and second end axle is less than the diameter of bearing section respectively, the both ends of bearing section are respectively through circular cone transition portion and first end axle, second end axle connection, be equipped with axle sleeve portion and cap on the location end cover, in the mounting hole on the hydraulic pressure pull rod can be packed into to axle sleeve portion, first end axle and second end axle can be packed into respectively in the axle sleeve portion, the location end cover pass through the threaded connection mode respectively with the hydraulic pressure pull rod, first end axle and second end axle fixed connection. The beneficial effects are that: the two ends of the bearing section on the pin shaft are respectively connected with the first end shaft and the second end shaft through the conical transition parts, the problem of stress concentration of the original step of the pin shaft is solved, meanwhile, the first end shaft and the second end shaft are respectively sleeved with the shaft sleeve parts of the positioning end covers, part of impact force between the two end shafts and the mounting holes of the hydraulic pull rod can be absorbed, the stress concentration of the first end shaft and the second end shaft is favorably relieved, and the problem of breakage of the pin shaft is effectively solved under the condition of double pipes.
According to the preferred technical scheme, the diameters of the first end shaft and the second end shaft are both 112 mm, and the diameter of the bearing section is 120 mm. The beneficial effects are that: the diameter proportion is better, the strength of each part of the pin shaft is coordinated, and the stress is dispersed.
In a preferred technical scheme, the axial height of the conical transition part is 21 mm, and the angle of the bevel is 15 degrees. The beneficial effects are that: and an optimal transition connection structure is adopted, so that the overall strength of the pin shaft is enhanced, and the stress is dispersed.
According to the preferable technical scheme, the lengths of the first end shaft and the second end shaft are equal. The beneficial effects are that: the two ends are symmetrical, the direction does not need to be confirmed, and the installation is convenient.
The beneficial effects are that: compared with the prior art, the utility model discloses through circular cone transition portion and first end axle, second end hub connection respectively at the both ends of selling epaxial bearing section, improve the problem of the stress concentration of selling the original ladder department of axle, first end axle and second end axle overlap respectively simultaneously and are equipped with the axle sleeve portion of location end cover, can absorb a part impact force between the mounting hole of two end axles and hydraulic pull rod, be favorable to alleviating the stress concentration on first end axle and the second end axle, the double-barrelled is together, solve the cracked problem of round pin axle effectively.
Drawings
The following detailed description of embodiments of the invention is provided in conjunction with the accompanying drawings, in which:
FIG. 1 is a schematic diagram of the specific location of an embodiment of the present invention in a vertical mill apparatus;
FIG. 2 is a cross-sectional view taken along line A-A of an embodiment of the present invention;
fig. 3 is a schematic view of a preferred embodiment of the pin shaft of the present invention;
the reference numbers in the figures are: 10. a pin shaft; 101. a first end shaft; 102. a second end shaft; 103. a bearing section; 104. a conical transition section; 20. Positioning the end cover; 201. a boss portion; 202. a cover portion; 30. a vertical mill rocker arm; 40. and (4) a hydraulic pull rod.
Detailed Description
As shown in fig. 1-3, a hydraulic cylinder tie rod pin shaft assembly includes a pin shaft 10 and two positioning end caps 20, the pin shaft 10 is provided with a first end shaft 101, a second end shaft 102 and a bearing section 103 for connecting a vertical grinding rocker arm 30, the diameters of the first end shaft 101 and the second end shaft 102 are respectively smaller than the diameter of the bearing section 103, in a preferred embodiment, the diameters of the first end shaft 101 and the second end shaft 102 are both D1=112 mm, and the diameter of the bearing section 103 is D2=120 mm, so as to form a better diameter ratio, coordinate the strength of each part of the pin shaft 10, and disperse the stress concentration at the original step. The two ends of the bearing section 103 are respectively connected with the first end shaft 101 and the second end shaft 102 through a conical transition part 104 to form the rigid pin shaft 10, the preferred embodiment is that the axial height of the conical transition part 104 is H =21 mm, the angle of the oblique angle is B =15 degrees, and an optimal transition connection structure is adopted, so that the overall strength of the pin shaft 10 is favorably enhanced, and the stress is dispersed. The positioning end cover 20 is provided with a shaft sleeve portion 201 and a cover portion 202, the shaft sleeve portion 201 can be installed in an installation hole in the hydraulic pull rod 40, the first end shaft 101 and the second end shaft 102 can be installed in the shaft sleeve portion 201 respectively, and the positioning end cover 20 is fixedly connected with the hydraulic pull rod 40, the first end shaft 101 and the second end shaft 102 respectively in a threaded connection mode. The two ends of the bearing section 103 on the pin shaft 10 are respectively connected with the first end shaft 101 and the second end shaft 102 through the conical transition parts 104, so that the problem of stress concentration of the original step of the pin shaft 10 is solved, meanwhile, the first end shaft 101 and the second end shaft 102 are respectively sleeved with the shaft sleeve parts 201 of the positioning end covers 20, the shaft sleeve parts 201 are located between the shaft sections and the mounting holes of the hydraulic pull rod 40, part of impact force between the two end shafts and the mounting holes of the hydraulic pull rod 40 can be absorbed, the stress concentration on the first end shaft 101 and the second end shaft 102 is favorably relieved, and the problem of breakage of the pin shaft 10 is effectively solved under the condition of double pipes.
According to the preferable technical scheme, the first end shaft 101 and the second end shaft 102 are equal in length and symmetrical at two ends, direction does not need to be confirmed, and installation is facilitated.
The above embodiments are not limited to the technical solutions of the embodiments themselves, and the embodiments may be combined with each other into a new embodiment. The above embodiments are only used for illustrating the technical solutions of the present invention and are not limited thereto, and any modification or equivalent replacement that does not depart from the spirit and scope of the present invention should be covered by the scope of the technical solutions of the present invention.
Claims (4)
1. The hydraulic cylinder pull rod pin shaft assembly is characterized by comprising a pin shaft (10) and two positioning end covers (20), wherein a first end shaft (101), a second end shaft (102) and a bearing section (103) used for being connected with a vertical grinding rocker arm (30) are arranged on the pin shaft (10), the diameters of the first end shaft (101) and the second end shaft (102) are respectively smaller than the diameter of the bearing section (103), two ends of the bearing section (103) are respectively connected with the first end shaft (101) and the second end shaft (102) through conical transition portions (104), a shaft sleeve portion (201) and a cover portion (202) are arranged on the positioning end covers (20), the shaft sleeve portion (201) can be arranged in a mounting hole in a hydraulic pull rod (40), the first end shaft (101) and the second end shaft (102) can be respectively arranged in the shaft sleeve portion (201), and the positioning end covers (20) are respectively connected with the hydraulic pull rod (40) in a threaded manner, The first end shaft (101) and the second end shaft (102) are fixedly connected.
2. The hydraulic cylinder drawbar pin shaft assembly of claim 1, wherein the first end shaft (101) and the second end shaft (102) each have a diameter of 112 mm and the bearing segment (103) has a diameter of 120 mm.
3. The hydraulic cylinder tie rod pin shaft assembly of claim 2, wherein the conical transition (104) has an axial height of 21 mm and an oblique angle of 15 degrees.
4. The hydraulic cylinder drawbar pin shaft assembly according to any of claims 1-3, wherein the first end shaft (101) and the second end shaft (102) are of equal length.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921418548.2U CN210461237U (en) | 2019-08-29 | 2019-08-29 | Hydraulic cylinder pull rod pin shaft assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921418548.2U CN210461237U (en) | 2019-08-29 | 2019-08-29 | Hydraulic cylinder pull rod pin shaft assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210461237U true CN210461237U (en) | 2020-05-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921418548.2U Active CN210461237U (en) | 2019-08-29 | 2019-08-29 | Hydraulic cylinder pull rod pin shaft assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210461237U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113305153A (en) * | 2021-05-31 | 2021-08-27 | 安徽马钢重型机械制造有限公司 | Pull rod device of plate and strip hot rolling line fixed-width press |
-
2019
- 2019-08-29 CN CN201921418548.2U patent/CN210461237U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113305153A (en) * | 2021-05-31 | 2021-08-27 | 安徽马钢重型机械制造有限公司 | Pull rod device of plate and strip hot rolling line fixed-width press |
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