CN218644681U - Input shaft with sealing structure - Google Patents
Input shaft with sealing structure Download PDFInfo
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- CN218644681U CN218644681U CN202223027435.4U CN202223027435U CN218644681U CN 218644681 U CN218644681 U CN 218644681U CN 202223027435 U CN202223027435 U CN 202223027435U CN 218644681 U CN218644681 U CN 218644681U
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- sleeve
- input shaft
- ring
- main shaft
- shaft
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Abstract
The utility model discloses an input shaft with seal structure belongs to transmission shaft technical field. The utility model provides an input shaft with seal structure, includes the main shaft, the cardan shaft is installed to the main shaft left end, main shaft outside right part cover is established and is installed the sleeve, the end links are installed to the sleeve right-hand member, the end plate is installed in the crimping between sleeve and the end links, the end links middle part inlays to establish installs wear-resisting cover, wear-resisting cover is established and is installed in the main shaft outside. The utility model discloses a holistic structure setting, sleeve collocation end plate rotate the input shaft spacing to inlay between end plate and the casing and establish and be connected, make area of contact between input shaft and the casing big, guarantee the stable direction to the input shaft, and through the wear-resisting cover of bolt crimping installation between input shaft and end plate, and can carry out the change alone of wear-resisting cover, it is convenient that follow-up maintenance.
Description
Technical Field
The utility model relates to a transmission shaft technical field, more specifically say, relate to an input shaft with seal structure.
Background
The plunger pump is an important device of the hydraulic system. The oil suction and pressure oil pumping device is characterized in that a plunger reciprocates in a cylinder body to change the volume of a sealed working cavity to suck and press oil, an input shaft of a plunger pump needs to be connected with an inclined turntable, and a transmission shaft can be subjected to radial acting force transmitted by the turntable, so that oil leaks at the connecting position of the input shaft and a shell.
The input shaft with the conventional polished surface is used for sealing in a leakproof manner by adopting a sealing bearing at the connecting position of the existing input shaft and a shell, but the bearing is subjected to eccentric wear caused by radial acting force, so that the bearing is quickly worn, the service life is greatly shortened, and the later maintenance is frequent.
SUMMERY OF THE UTILITY MODEL
1. Technical problem to be solved
An object of the utility model is to provide an input shaft with seal structure to the input shaft that proposes current plunger pump among the above-mentioned background art of solution uses sealed bearing to change frequent problem.
2. Technical scheme
An input shaft with a sealing structure comprises a main shaft, wherein a universal shaft is installed at the left end of the main shaft, a sleeve is sleeved and installed at the right part of the outer side of the main shaft, an end ring is installed at the right end of the sleeve, an end plate is installed between the sleeve and the end ring in a compression joint mode, a wear-resistant sleeve is embedded and installed in the middle of the end ring, the wear-resistant sleeve is sleeved and installed at the outer side of the main shaft, a bolt is installed between the end ring and the sleeve, and a screw hole matched with the bolt is formed in the end plate;
the main shaft is installed by rotating between end ring and sleeve, and it is spacing to be rotated between end ring and the sleeve, and contact position sets up wear-resisting cover, can improve the area of contact to and stable rotation direction, and install the end plate between end ring and the sleeve, install the bearing in the hookup location of end ring and sleeve and main shaft, can be with more stable the fixing at the casing tip of end ring and sleeve, improve the installation stability, a plurality of bearings rotate the connection, avoid bearing wear to lead to the oil leak.
Preferably, the right part of the outer side of the universal shaft is provided with convex keys which are arranged at equal intervals, and the left part of the main shaft is provided with a spline groove;
the left end of the universal shaft is connected with the tilting disk, and the tilting disk which tilts can be driven to rotate through the rotation of the main shaft, so that the rotation driving of the plunger pump is realized.
Preferably, a rubber ring is embedded and installed at the left end of the sleeve, a step ring is installed in the middle of the main shaft, and the step ring is in sliding contact with the rubber ring;
the left end of the rubber ring extends out of the left side wall of the sleeve and can deform with the stepped ring in an extrusion manner, and a joint between the left end of the sleeve and the spindle is sealed.
Preferably, grooves are formed in the front side and the rear side of the end plate, and the end plate and the shell a are clamped in an embedded mode;
the end plate and the shell a are embedded and are compressed through screws, stable sealing connection is improved, and the position stability of the sleeve is guaranteed.
Preferably, the left side wall of the end plate is provided with an embedded ring groove, and the right end of the sleeve is inserted and installed in the embedded ring groove;
the annular groove is set up in inlaying of end plate left side wall, can peg graft with the sleeve, and then can improve area of contact, realizes stable sealing.
Preferably, a compression ring is mounted on the inner side of the sleeve, a sealing sliding sleeve is sleeved on the right portion of the compression ring, and the right end of the sealing sliding sleeve abuts against and contacts with the left side wall of the wear-resistant sleeve;
the pressing ring is fixedly connected with the sleeve, the sealing sliding sleeve is sleeved at the left end of the pressing ring, and the sealing sliding sleeve can compress the wear-resistant sleeve rightwards.
Preferably, the compression ring is composed of two concentric lantern rings, and the sealing sliding sleeve and the compression ring are combined to form a sealing air cavity;
the sealing sliding sleeve is in sliding contact with the compression ring to realize sliding sealing, and when the sealing sliding sleeve is in rotating friction, the heat can heat gas in the sealing gas cavity, so that the wear-resistant sleeve can be extruded rightwards to seal a gap in a pressurizing manner.
3. Advantageous effects
Compared with the prior art, the utility model has the advantages of:
1. the utility model discloses a holistic structure setting, sleeve collocation end plate rotate the input shaft spacing to inlay between end plate and the casing and establish and be connected, make area of contact between input shaft and the casing big, guarantee the stable direction to the input shaft, and through the wear-resisting cover of bolt crimping installation between input shaft and end plate, and can carry out the change alone of wear-resisting cover, it is convenient that follow-up maintenance.
2. The utility model discloses a holistic structure sets up, between wear-resisting cover and sleeve, installation clamp ring and sealed sliding sleeve can rotate the friction heat transfer that produces to sealed sliding sleeve with the input shaft, heats the inside gas of clamp ring and sealed sliding sleeve and makes its inflation, and then extrudees wear-resisting cover right for flexible wear-resisting cover is compressed tightly by lasting at the during operation, guarantees that the gap is by compressing tightly that lasts, avoids leading to the leakage because of wearing and tearing.
Drawings
FIG. 1 is a right side schematic view of the overall structure of the present invention;
FIG. 2 is a left side schematic view of the overall structure of the present invention;
FIG. 3 is a schematic view of the present invention showing a partially disassembled structure;
fig. 4 is a partial structure section schematic diagram of the present invention.
The numbering in the figures illustrates: a main shaft 1; a cardan shaft 11; a stepped ring 12; an end plate 2; a sleeve 3; an end ring 31; a wear sleeve 32; a sealing sliding sleeve 33; a clamp ring 34; a rubber ring 35; a bolt 4; a housing a.
Detailed Description
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.
In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "provided", "sleeved/connected", "connected", and the like are to be understood in a broad sense, such as "connected", which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1-4, the present invention provides two technical solutions:
the first embodiment is as follows:
the utility model provides an input shaft with seal structure, includes main shaft 1, universal shaft 11 is installed to 1 left end of main shaft, and 1 outside right part cover of main shaft is established and is installed sleeve 3, and end ring 31 is installed to sleeve 3 right-hand member, and the crimping is installed between sleeve 3 and the end ring 31 and is followed closely to have installed end plate 2, and end ring 31 middle part inlays to establish and installs wear-resisting cover 32, and wear-resisting cover 32 cover is established and is installed in the 1 outside of main shaft, installs bolt 4 between end ring 31 and the sleeve 3, and end plate 2 is inside to be seted up with bolt 4 complex screw.
Specifically, the right part of the outer side of the universal shaft 11 is provided with convex keys which are arranged at equal intervals, and the left part of the main shaft 1 is provided with a spline groove.
Further, the left end of the sleeve 3 is embedded with a rubber ring 35, the middle part of the main shaft 1 is provided with a stepped ring 12, and the stepped ring 12 is in sliding contact with the rubber ring 35.
It is worth to be noted that grooves are formed in the front side and the rear side of the end plate 2, and the end plate 2 and the shell a are clamped in an embedded mode.
The main shaft 1 is rotatably installed between the end ring 31 and the sleeve 3, the end ring 31 and the sleeve 3 are rotatably limited, the contact position is provided with the wear-resistant sleeve 32, the contact area can be increased, stable rotation guiding is realized, the end plate 2 is installed between the end ring 31 and the sleeve 3, the bearing is installed at the connecting position of the end ring 31, the sleeve 3 and the main shaft 1, the end ring 31 and the sleeve 3 can be more stably fixed at the end part of the shell 2, the installation stability is improved, a plurality of bearings are rotatably connected, oil leakage caused by bearing abrasion is avoided, the left end of the universal shaft 11 is connected with the tilting disk, the tilting disk can be driven to rotate by the rotation of the main shaft 1, the rotary driving of the plunger pump is realized, the left end of the rubber ring 35 extends out of the left side wall of the sleeve 3 to be extruded with the stepped ring 12 to be deformed, a joint between the left end of the sleeve 3 and the main shaft 1 is sealed, the end plate 2 is embedded with the shell a, the shell a is pressed by screws, the stable sealing connection is improved, and the stable sealing connection is ensured, and the position stability of the sleeve 3 is stable.
Example two:
the utility model provides an input shaft with seal structure, includes main shaft 1, universal shaft 11 is installed to 1 left end of main shaft, and 1 outside right part cover of main shaft is established and is installed sleeve 3, and end ring 31 is installed to sleeve 3 right-hand member, and the crimping is installed between sleeve 3 and the end ring 31 and is followed closely to have installed end plate 2, and end ring 31 middle part inlays to establish and installs wear-resisting cover 32, and wear-resisting cover 32 cover is established and is installed in the 1 outside of main shaft, installs bolt 4 between end ring 31 and the sleeve 3, and end plate 2 is inside to be seted up with bolt 4 complex screw.
It is worth noting that the left side wall of the end plate 2 is provided with an embedded ring groove, and the right end of the sleeve 3 is inserted and installed in the embedded ring groove.
Besides, a compression ring 34 is installed on the inner side of the sleeve 3, a sealing sliding sleeve 33 is installed on the right portion of the compression ring 34 in a sleeved mode, and the right end of the sealing sliding sleeve 33 is abutted to the left side wall of the wear-resistant sleeve 32 in pressing contact.
It has to be said that the clamp ring 34 is composed of two concentric collars, and the sealing slide 33 and the clamp ring 34 are combined to form a sealing air cavity.
The annular is established in inlaying of end plate 2 left side wall, can peg graft with sleeve 3, and then can improve area of contact, realize stable sealing, clamp ring 34 and sleeve 3 fixed connection, sealed sliding sleeve 33 is established at clamp ring 34 left end cover, sealed sliding sleeve 33 can compress tightly wear-resisting cover 32 right, sealed sliding sleeve 33 and clamp ring 34 sliding contact, realize sliding seal, and when rotating friction, the heat can be with the gaseous heating expansion in the sealed gas chamber, can extrude wear-resisting cover 32 right, with gap pressurization seal.
The foregoing shows and describes the basic principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only the preferred embodiments of the present invention, and is not intended to limit the present invention, and that there may be various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall within the scope of the present invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (7)
1. An input shaft with a sealing structure, comprising a main shaft (1), characterized in that: cardan shaft (11) are installed to main shaft (1) left end, main shaft (1) outside right part cover is established and is installed sleeve (3), end links (31) are installed to sleeve (3) right-hand member, end plate (2) are installed in the crimping between sleeve (3) and end links (31), end links (31) middle part inlays to establish and installs wear-resisting cover (32), wear-resisting cover (32) cover is established and is installed in main shaft (1) outside, install bolt (4) between end links (31) and sleeve (3), end plate (2) inside seted up with bolt (4) complex screw.
2. An input shaft having a seal structure according to claim 1, wherein: the right part of the outer side of the universal shaft (11) is provided with convex keys which are arranged at equal intervals, and the left part of the main shaft (1) is provided with a spline groove.
3. An input shaft having a seal structure according to claim 2, wherein: the left end of the sleeve (3) is embedded with a rubber ring (35), the middle of the main shaft (1) is provided with a stepped ring (12), and the stepped ring (12) is in sliding contact with the rubber ring (35).
4. An input shaft having a seal structure according to claim 3, wherein: both sides are fluted around end plate (2), end plate (2) and casing a inlay and establish the joint.
5. An input shaft having a seal structure according to claim 1, wherein: the left side wall of the end plate (2) is provided with an embedded ring groove, and the right end of the sleeve (3) is inserted and installed in the embedded ring groove.
6. An input shaft having a seal structure according to claim 5, wherein: pressing ring (34) is installed to sleeve (3) inboard, pressing ring (34) right part cover is established and is installed sealed sliding sleeve (33), sealed sliding sleeve (33) right-hand member supports to press the wear-resisting cover of contact (32) left side wall.
7. An input shaft having a seal structure according to claim 6, wherein: the compression ring (34) is composed of two concentric lantern rings, and the sealing sliding sleeve (33) and the compression ring (34) are combined to form a sealing air cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223027435.4U CN218644681U (en) | 2022-11-14 | 2022-11-14 | Input shaft with sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223027435.4U CN218644681U (en) | 2022-11-14 | 2022-11-14 | Input shaft with sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218644681U true CN218644681U (en) | 2023-03-17 |
Family
ID=85496494
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223027435.4U Active CN218644681U (en) | 2022-11-14 | 2022-11-14 | Input shaft with sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218644681U (en) |
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2022
- 2022-11-14 CN CN202223027435.4U patent/CN218644681U/en active Active
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