CN111609104B - Lubricating and oiling structure of screw - Google Patents
Lubricating and oiling structure of screw Download PDFInfo
- Publication number
- CN111609104B CN111609104B CN202010474637.XA CN202010474637A CN111609104B CN 111609104 B CN111609104 B CN 111609104B CN 202010474637 A CN202010474637 A CN 202010474637A CN 111609104 B CN111609104 B CN 111609104B
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- China
- Prior art keywords
- oil storage
- storage cavity
- screw
- valve body
- screw rod
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
- F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
- F16H25/20—Screw mechanisms
- F16H25/24—Elements essential to such mechanisms, e.g. screws, nuts
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/048—Type of gearings to be lubricated, cooled or heated
- F16H57/0497—Screw mechanisms
Abstract
The invention discloses a lubricating and oiling structure of a screw, which comprises a sealing piston and a switch valve component; an oil storage cavity and an oil outlet channel are arranged in the screw rod; the oil outlet channel comprises a main channel and a branch channel, and the main channel extends along the axial direction of the screw and is communicated with the closed end of the oil storage cavity; the branch flow channels are provided with a plurality of branch flow channels, one end of each branch flow channel is connected with the main flow channel, and the other end of each branch flow channel extends to the rod wall of the screw; the switch valve component comprises a valve body, a valve core and an elastic piece; the valve body is fixed at the closed end of the oil storage cavity, and the valve body is provided with a sealing section and a conducting section along the axial direction of the valve body, and one end of the conducting section, which is back to the sealing section, is provided with an inner flange; the valve core can be movably matched in the valve body along the axial direction of the valve body, one end of the elastic piece is connected with the valve core, and the other end of the elastic piece is connected with the inner flange and pushes the valve core to the sealing section; the sealing piston is arranged in the oil storage cavity and can move along the axial direction of the oil storage cavity. The invention obviously improves the convenience of oiling and lubricating the screw.
Description
Technical Field
The invention relates to a lubricating and oiling structure of a screw.
Background
The screw rod is a cylinder with a spiral groove cut on the outer surface or a cone with a conical spiral groove cut on the outer surface. The mechanism can be applied to various mechanical matching structures and can achieve the functions of fixing or linear transmission.
In particular, the screws are required to be oiled to maintain their lubricating effect, especially in the case of transmission structures. In the prior art, in many cases, when the screw rod is used in the transmission structure, the rod body of the screw rod is hidden in the protective cover or shielded by the sliding part, and only the end part of the screw rod is exposed in the environment. The screw rod under this structure need just can oil the operation after dismantling protection casing or slider when oiling to lead to oiling the operation fairly loaded down with trivial details, consequently there is the space of improvement.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a lubricating and oiling structure of a screw, which obviously improves the convenience of oiling and lubricating the screw.
In order to achieve the purpose, the invention provides the following technical scheme:
the utility model provides a lubricated structure that oils of screw rod, includes the screw rod, characterized by: the sealing piston and the switch valve component are also included;
an oil storage cavity and an oil outlet channel are arranged in the screw rod; the oil storage cavity extends along the axial direction of the screw rod, one end of the oil storage cavity is closed, and the other end of the oil storage cavity penetrates through the end wall of the screw rod; the oil outlet channel comprises a main channel and a branch channel, and the main channel extends along the axial direction of the screw and is communicated with the closed end of the oil storage cavity; the branch flow channels are provided with a plurality of branch flow channels, one end of each branch flow channel is connected with the main flow channel, and the other end of each branch flow channel extends to the rod wall of the screw;
the switch valve assembly comprises a valve body, a valve core and an elastic piece; the valve body is fixed at the closed end of the oil storage cavity, the valve body is provided with a sealing section and a conducting section along the axial direction of the valve body, and one end of the conducting section, which is back to the sealing section, is provided with an inner flange; the valve core can be movably matched in the valve body along the axial direction of the valve body, one end of the elastic piece is connected with the valve core, and the other end of the elastic piece is connected with the inner flange and pushes the valve core to the sealing section;
the sealing piston is arranged in the oil storage cavity and can move along the axial direction of the oil storage cavity.
Preferably, the conducting section is provided with a plurality of oil outlet grooves.
Preferably, a sealing ring is arranged between the outer side wall of the valve body and the inner side wall of the oil storage cavity.
Preferably, the switching valve assembly further comprises a clamping spring, and the switching valve assembly is fixed at the closed end of the oil storage cavity through the clamping spring.
Preferably, one end of the oil storage cavity corresponding to the end wall of the penetrating screw is provided with a sealing cover.
Preferably, an oil filling hole is formed in the screw, and the oil filling hole is communicated with the oil storage cavity and the outside of the screw.
The invention has the advantages that: when in use, lubricating oil is stored in the oil storage cavity, and the lubricating oil in the oil storage cavity is sealed through the sealing piston seal and the switch valve assembly; when needs oil, utilize the instrument to promote sealed piston and remove towards the ooff valve subassembly in the oil storage intracavity, to the lubricating oil extrusion of oil storage intracavity, the case is extruded simultaneously to lubricating oil, make the case overcome the elasticity orientation of elastic component and switch on the section and remove, after the case removes to switching on the section, the ooff valve subassembly is switched on, lubricating oil in the oil storage intracavity flows to the sprue, flow to the thread groove of screw rod through the sprue at last, realize the effect of oiling, showing the convenience that has promoted the screw rod operation of oiling.
Drawings
FIG. 1 is a schematic diagram of a lubricating and oiling structure of a screw rod provided in the present embodiment;
fig. 2 is a schematic view of the valve body provided in the present embodiment.
Detailed Description
The lubricating and oiling structure of the screw of the present invention is further described with reference to fig. 1 to 2.
The utility model provides a lubricated structure that oils of screw rod, includes screw rod 1, characterized by: also included are a sealing piston 2 and a switch valve assembly 4.
The screw 1 is internally provided with an oil storage cavity 11 and an oil outlet channel 14; the oil storage cavity 11 extends along the axial direction of the screw rod 1, one end of the oil storage cavity 11 is closed, and the other end of the oil storage cavity 11 penetrates through the end wall of the screw rod 1 to form an opening of the oil storage cavity 11; the oil outlet channel 14 comprises a main channel 142 and a branch channel 141, two ends of the main channel 142 are closed, and the main channel 142 extends along the axial direction of the screw 1 and is communicated with the closed end of the oil storage chamber 11; the branch flow channels 141 are provided in plurality and uniformly distributed in the screw 1 along the axial direction of the screw, and one end of each branch flow channel is connected to the main flow channel 142, and the other end extends into the thread groove of the rod wall of the screw 1.
The switch valve assembly 4 comprises a valve body 41, a valve core 43 and an elastic piece 42; the valve body 41 is of a tubular structure and is fixed on the step 111 at the closed end of the oil storage chamber 11, the valve body 41 is provided with a sealing section 411 and a conducting section 412 along the axial direction, the sealing section 411 corresponds to the opening of the oil storage chamber 11, the conducting section 412 faces away from the opening of the oil storage chamber 11, an inner flange 413 is formed on the inner wall of one end of the conducting section 412 facing away from the sealing section 411, and the valve core 43 is movably fitted in the valve body 41 along the axial direction of the valve body 41. The elastic member 42 is a spring, and one end of the spring is connected to the valve core 43 and the other end is connected to the inner flange 413, and pushes the valve core 43 toward the sealing section 411.
The sealing piston 2 is arranged in the oil storage chamber 11 and can move along the axial direction of the oil storage chamber 11.
In specific use, lubricating oil is stored in the oil storage cavity 11, and the lubricating oil in the oil storage cavity 11 is sealed through the sealing piston 2 and the switch valve assembly 4 for ready use. When the needs are lubricated to the screw oiling, utilize the instrument to promote sealed piston 2 and remove towards switch valve subassembly 4 in oil storage chamber 11, to the lubricating oil extrusion in the oil storage chamber 11, lubricating oil extrudees case 43 simultaneously, make case 43 overcome the elasticity orientation of elastic component 42 and switch on the section 412 and remove, after case 43 removed to switch on the section 412, switch valve subassembly 4 was switched on, lubricating oil in the oil storage chamber 11 flows to the sprue, flow to the thread groove of screw rod 1 through sprue 141 at last, the effect of oiling is realized, the convenience of the operation of oiling of screw rod 1 has been showing to be promoted. Since the branch flow channel 141 is provided in plurality and uniformly distributed in the screw 1, the thread groove of the screw 1 can be uniformly oiled by the main flow channel and the branch flow channel 141.
A pull ring 21 is provided on the sealing piston 2, and a tool can be hooked by the pull ring 21 to pull the sealing piston 2 toward the open end of the reservoir chamber 11.
The valve body 41 is further structured such that: the conducting section 412 has a plurality of oil outlet grooves 4121, which penetrate through the end wall of the valve body 41 corresponding to the inner flange 413. When the valve core 43 is positioned in the sealing section 411, the outer wall of the valve core 43 is tightly attached to the inner wall of the sealing section 411 to seal the valve body 41, so that the oil storage cavity 11 is sealed; and a sealing ring is arranged on the outer wall of the valve core 43. When the valve element 43 is pressed to the conducting section 412 by the lubricating oil, the lubricating oil flows out from the oil outlet groove 4121 and flows to the main flow passage and the branch flow passage 141, so that the screw 1 is oiled. After extrusion to sealing piston 2 is stopped, under the effect of spring, case 43 can reset to sealed section 411 again, closes switch valve subassembly 4, restricts oil storage chamber 11 and continues the oil, realizes the storage to lubricating oil for real-time demand.
The valve body 41 is further structured to: a sealing ring is arranged between the outer side wall of the valve body 41 and the inner side wall of the oil storage cavity 11, so that the sealing performance between the valve body 41 and the inner wall of the oil storage cavity 11 is improved, and the problem that lubricating oil seeps out from the inner wall of the oil storage cavity 11 and the outer wall of the valve body 41 is avoided.
The fixing structure of the valve body 41 in the oil storage chamber 11 is as follows: the oil storage device is characterized by further comprising a clamp spring 5, and the switch valve assembly 4 is fixed at the closed end of the oil storage cavity 11 through the clamp spring 5. Namely, the closed end of the oil storage chamber 11 is provided with an inner step 111, one end of the valve body 41 abuts against the inner step 111, and the other end of the valve body 41 is fixed by the clamp spring 5, so that the positioning is realized.
Furthermore, a sealing cover 3 is arranged at one end of the oil storage cavity 11 corresponding to the end wall of the penetrating screw 1. This sealed lid 3 can play the further sealed effect of protecting to oil storage chamber 11, avoids impurity to enter into the problem in the oil storage chamber 11. Meanwhile, in the embodiment, the sealing cover 3 is made of steel material, and when the sealing cover 3 is matched on the opening, the structural strength of the screw rod 1 can be ensured.
Further, an oil filling hole 12 is formed in the screw rod 1, a sealing plug 13 is formed in the oil filling hole 12, and the oil filling hole 12 is communicated with the oil storage cavity 11 and the outside of the screw rod 1. The oil filling operation of the oil reservoir chamber 11 can be facilitated by the oil filler hole 12.
Unless otherwise specified, in the present invention, if there is an orientation or positional relationship indicated by terms of "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., based on the orientation or positional relationship shown in the drawings, it is only for convenience of describing the present invention and simplifying the description, rather than to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore, the terms describing orientation or positional relationship in the present invention are for illustrative purposes only, and should not be construed as limiting the present patent, specific meanings of the above terms can be understood by those of ordinary skill in the art in light of the specific circumstances in conjunction with the accompanying drawings.
Unless expressly stated or limited otherwise, the terms "disposed," "connected," and "connected" are used broadly and encompass, for example, being fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.
Claims (6)
1. The utility model provides a lubricated structure that oils of screw rod, includes the screw rod, characterized by: the sealing piston and the switch valve component are also included;
an oil storage cavity and an oil outlet channel are arranged in the screw rod; the oil storage cavity extends along the axial direction of the screw rod, one end of the oil storage cavity is closed, and the other end of the oil storage cavity penetrates through the end wall of the screw rod; the oil outlet channel comprises a main channel and a branch channel, and the main channel extends along the axial direction of the screw and is communicated with the closed end of the oil storage cavity; the branch flow channels are provided with a plurality of branch flow channels, one end of each branch flow channel is connected with the main flow channel, and the other end of each branch flow channel extends to the rod wall of the screw;
the switch valve assembly comprises a valve body, a valve core and an elastic piece; the valve body is fixed at the closed end of the oil storage cavity, the valve body is provided with a sealing section and a conducting section along the axial direction of the valve body, and one end of the conducting section, which is back to the sealing section, is provided with an inner flange; the valve core can be movably matched in the valve body along the axial direction of the valve body, one end of the elastic piece is connected with the valve core, and the other end of the elastic piece is connected with the inner flange and pushes the valve core to the sealing section;
the sealing piston is arranged in the oil storage cavity and can move along the axial direction of the oil storage cavity.
2. A lubricating and oiling structure for a screw according to claim 1, wherein: the conducting section is provided with a plurality of oil outlet grooves.
3. A lubricating and oiling structure for a screw according to claim 1, wherein: and a sealing ring is arranged between the outer side wall of the valve body and the inner side wall of the oil storage cavity.
4. A lubricating and oiling structure for a screw according to claim 1, wherein: the switching valve assembly is fixed at the closed end of the oil storage cavity through the clamping spring.
5. A lubricating and oiling structure for a screw according to claim 1, wherein: one end of the oil storage cavity, which correspondingly penetrates through the end wall of the screw rod, is provided with a sealing cover.
6. A lubricating and oiling structure for a screw according to claim 1, wherein: an oil filling hole is formed in the screw rod and is communicated with the oil storage cavity and the outside of the screw rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010474637.XA CN111609104B (en) | 2020-05-29 | 2020-05-29 | Lubricating and oiling structure of screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010474637.XA CN111609104B (en) | 2020-05-29 | 2020-05-29 | Lubricating and oiling structure of screw |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111609104A CN111609104A (en) | 2020-09-01 |
| CN111609104B true CN111609104B (en) | 2021-09-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010474637.XA Active CN111609104B (en) | 2020-05-29 | 2020-05-29 | Lubricating and oiling structure of screw |
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| Country | Link |
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| CN (1) | CN111609104B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1048300A (en) * | 1964-05-06 | 1966-11-16 | Derefa Ets | Improvements in arrangements for lubricating nut and screw devices |
| GB1236572A (en) * | 1967-07-14 | 1971-06-23 | Richards & Co Ltd George | Screw and half nut mechanisms |
| JP2001059559A (en) * | 1999-08-20 | 2001-03-06 | Isel Co Ltd | Ball screw device |
| CN102182808A (en) * | 2009-11-23 | 2011-09-14 | 恩格尔奥地利有限公司 | Spindle drive for injection molding machine, has lubrication oil seal that limits lubrication area and lies at spindle, where lubrication oil seal is placed at end of lubrication area |
| CN206159449U (en) * | 2016-08-29 | 2017-05-10 | 重庆红宇精密工业有限责任公司 | Automatic gearbox oil pump with detachable check valve |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207212879U (en) * | 2017-09-07 | 2018-04-10 | 温州国正机械有限公司 | A kind of self-lubricating bearing pin |
-
2020
- 2020-05-29 CN CN202010474637.XA patent/CN111609104B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1048300A (en) * | 1964-05-06 | 1966-11-16 | Derefa Ets | Improvements in arrangements for lubricating nut and screw devices |
| GB1236572A (en) * | 1967-07-14 | 1971-06-23 | Richards & Co Ltd George | Screw and half nut mechanisms |
| JP2001059559A (en) * | 1999-08-20 | 2001-03-06 | Isel Co Ltd | Ball screw device |
| CN102182808A (en) * | 2009-11-23 | 2011-09-14 | 恩格尔奥地利有限公司 | Spindle drive for injection molding machine, has lubrication oil seal that limits lubrication area and lies at spindle, where lubrication oil seal is placed at end of lubrication area |
| CN206159449U (en) * | 2016-08-29 | 2017-05-10 | 重庆红宇精密工业有限责任公司 | Automatic gearbox oil pump with detachable check valve |
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| Publication number | Publication date |
|---|---|
| CN111609104A (en) | 2020-09-01 |
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