CN217874120U - Lead screw self-lubricating protection valve - Google Patents
Lead screw self-lubricating protection valve Download PDFInfo
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- CN217874120U CN217874120U CN202222314252.4U CN202222314252U CN217874120U CN 217874120 U CN217874120 U CN 217874120U CN 202222314252 U CN202222314252 U CN 202222314252U CN 217874120 U CN217874120 U CN 217874120U
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- protective cover
- lead screw
- lubricating
- screw rod
- protection valve
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Abstract
The utility model discloses a lead screw self-lubricating protection valve belongs to the valve equipment field. The device comprises a bearing box, a support, a screw rod, a first protective cover and a second protective cover, wherein one end of the screw rod is inserted into the bearing box and penetrates through and is connected with a bearing, and the support is fixedly arranged on the outer side of the bearing box; the first protective cover is fixedly arranged on the support, and the screw rod penetrates through the first protective cover; one end of the second protective cover extends into the first protective cover and is in sealing sleeve joint with the outer side of the screw rod, the other end of the second protective cover is provided with a lubricating grease injection port, and a plugging device is arranged at the injection port; the second shield is filled with grease. The utility model discloses a set up protection architecture, can protect the lead screw not receive external environment's influence, and to the lubricated effect preferred of lead screw.
Description
Technical Field
The utility model belongs to the valve equipment field, more specifically says, relates to a lead screw self-lubricating protection valve.
Background
Valves are accessories for pipes used to open and close the pipes, control the flow direction, regulate and control the parameters of the medium to be transported (temperature, pressure and flow), and are widely used in various fields. In mine production, the telescopic screw rod of the valve used at present is generally exposed in the air, so that in the working process, the valve screw rod is influenced by the erosion, corrosion and the like of ore pulp, the screw rod is corroded and rusted, the valve is failed or damaged, and the production continuity is influenced.
In addition, the valve telescopic screw rod is exposed in the air, and the following problems can also exist:
(1) Dust and ore pulp are easy to accumulate in the threads of the telescopic screw rod, and time and labor are consumed when the flow of the ore pulp is adjusted;
(2) The service life of the existing valve is short, and the consumption is large;
(3) Some areas on the site have narrow space, and time and labor are wasted during maintenance and replacement.
Therefore, a valve capable of protecting the screw rod is needed to meet the requirement of long-term use in mine production.
The Chinese patent application numbers are: CN201910157022.1, published as: patent literature of 5/10/2019 discloses a leakage-proof control valve, which comprises a valve main body and a control module, wherein the valve main body is provided with the control module, the control module comprises a piston rod, two rollers, a screw rod, a sealing block and a clamping unit, and a sealing chamber is arranged above a liquid outlet; a piston chamber is arranged on one side of the sealing chamber close to the valve main body; a piston rod is connected in the piston chamber in a sliding manner; the piston rod is provided with threads, and the end of the piston rod extends out of the piston chamber and is screwed with one of the rollers; the two rollers are driven by a belt, and the other roller is connected with a lead screw through a ball screw pair; the bottom end of the lead screw is fixedly connected with a sealing block; the bottom of the sealing block is fixedly connected with a clamping unit. As is apparent from the drawings of the proposal, the telescopic screw rod is exposed to the outside, and various problems mentioned above exist in use.
The Chinese patent application numbers are: CN201510819297.9, published as: patent literature 5/31/2017 discloses a vacuum valve, which comprises a linear stepping motor, an upper valve cover, a valve body, a telescopic screw rod, a valve seat, a lower valve cover and a proximity sensor, wherein the upper end and the lower end of the valve body are respectively provided with the upper valve cover and the lower valve cover, and the valve seat is positioned in the valve body; the linear stepping motor is installed on the upper valve cover, the output end of the linear stepping motor is connected with the valve seat through the telescopic screw rod, the proximity sensor which is installed on the lower valve cover and used for measuring the opening degree of the valve is arranged below the valve seat, and the linear stepping motor drives the valve seat to move up and down so as to realize closed-loop control of the opening degree of the valve. Although the telescopic lead screw of the scheme is partially positioned in the shell, the telescopic lead screw can still be partially exposed to the outside in the telescopic process as can be also obtained from the specification and the attached drawings.
In the prior art, if only a form of sleeving a protective sleeve on the outer surface of the screw rod is adopted, the lubricating effect on the screw rod is difficult to ensure, and the service life of the screw rod is short.
Disclosure of Invention
1. Problems to be solved
When using, its lead screw exposes in the external world to current valve, receives external environment influence and influences the problem of valve work easily, the utility model provides a lead screw self-lubricating protective valve can protect the lead screw not receive external environment's influence through setting up protection architecture, and to the lubricated effect preferred of lead screw.
2. Technical scheme
In order to solve the above problems, the utility model adopts the following technical proposal.
A lead screw self-lubricating protection valve comprises a bearing box, a support, a lead screw, a first protection cover and a second protection cover, wherein one end of the lead screw is inserted into the bearing box and penetrates through and is connected with a bearing, and the support is fixedly arranged on the outer side of the bearing box; the first protective cover is fixedly arranged on the support, and the screw rod penetrates through the first protective cover; one end of the second protective cover extends into the first protective cover and is in sealing sleeve joint with the outer side of the screw rod, the other end of the second protective cover is provided with a lubricating grease injection port, and a plugging device is arranged at the injection port; the second shield is filled with grease.
As further improvement of the technical scheme, a screw sleeve is fixedly arranged in the second protective cover, and the second protective cover is fixedly connected with the screw rod through the screw sleeve.
As a further improvement of the technical scheme, the thread bushing is provided with an oil passing hole penetrating through the thread bushing.
As the further improvement of the technical scheme, the device also comprises a first sealing ring and a first gland which are arranged at one end, close to the bearing box, of the second protective cover, wherein the first sealing ring is arranged between a gap between the screw rod and the second protective cover and is pressed and fixed through the first gland.
As a further improvement of the technical scheme, the first gland is fixedly installed at the end part of the second protective cover through a second fastener.
As the further improvement of the technical scheme, the bearing box further comprises a second sealing ring and a second gland which are arranged at one end, far away from the bearing box, of the first protective cover, wherein the second sealing ring is arranged between a gap between the first protective cover and the second protective cover and is pressed and fixed through the second gland.
As a further improvement of the technical scheme, the plugging device comprises a plug rod and a plug which are fixedly connected, and the plug rod extends into the injection port to complete the plugging of the lubricating grease.
As a further improvement of the technical scheme, one end of the screw rod, which is far away from the second protective cover, is provided with a handle.
As a further improvement of the technical scheme, the first protective cover is fixedly connected with the bracket through a first fastener.
3. Advantageous effects
Compared with the prior art, the beneficial effects of the utility model are that:
(1) The utility model relates to a lead screw self-lubricating protection valve, through setting up two-layer protection casing, can realize the dual protection to the valve lead screw, avoid the lead screw to receive the influence of external environment, and pour into lubricating grease into in the second protection casing and then make the lead screw be in good lubricated state in the course of the work, improve the life of lead screw;
(2) The utility model relates to a lead screw self-lubricating protection valve, through setting up first sealing washer and first gland, make the leakproofness between second protection casing and the lead screw good, can prevent the leakage of lubricating grease, and through setting up second sealing washer and second gland, can prevent effectively that ore pulp and dust from getting into the protection casing, protect the work of lead screw and lubricating grease not influenced;
(3) The utility model relates to a lead screw self-lubricating protection valve, wherein a handle is arranged at one end of the lead screw away from a second protection cover, which is convenient for workers to maintain and adjust;
(4) The utility model relates to a lead screw self-lubricating protection valve is through setting up the oilhole on the silk cover for lubricating grease can be smoothly through the other end of crossing oilhole arrival second protection casing when injecting lubricating grease, guarantees the lubricated effect to the lead screw.
Drawings
Fig. 1 is a schematic structural view of the present invention;
in the figure: 1. a handle; 2. a bearing housing; 3. a support; 4. a first fastener; 5. a first shield; 6. a first gland; 7. A second fastener; 8. a first seal ring; 9. lubricating grease; 10. a screw rod; 11. sleeving the silk with a silk sleeve; 12. a second seal ring; 13. a second gland; 14. a second shield; 15. a stopper rod; 16. a plug; 17. and an oil passing hole.
Detailed Description
Exemplary embodiments of the present invention are described in detail below. Although these exemplary embodiments are described in sufficient detail to enable those skilled in the art to practice the invention, it should be understood that other embodiments may be realized and that various changes to the invention may be made without departing from the spirit and scope of the present invention. The following more detailed description of the embodiments of the present invention is not intended to limit the scope of the invention, as claimed, but is presented for purposes of illustration only and not limitation to provide the best mode contemplated for carrying out the invention and to enable any person skilled in the art to practice the invention. Accordingly, the scope of the invention is to be limited only by the following claims.
Examples
The utility model provides a lead screw self-lubricating protection valve, is applicable to the work occasion that has external factors such as ore pulp seepage, air dust, steam, can effectively protect flexible lead screw not harm, carries out detailed description to its concrete structure and theory of operation below.
As shown in fig. 1, the valve mainly comprises a bearing housing 2, a bracket 3, a screw rod 10, a first protective cover 5 and a second protective cover 14. Wherein, one end of the screw rod 10 is inserted into the bearing box 2, passes through and is in transmission connection with the bearing, and the other end of the screw rod 10 is provided with the handle 1, so that the maintenance and adjustment by workers are facilitated. The bracket 3 is fixedly arranged on the outer side of the bearing box 2 and is used as a connecting part and a supporting part of the valve and other devices.
The first protective cover 5 is fixedly arranged on the bracket 3 through a first fastener 4, and the screw rod 10 penetrates through the first protective cover 5. One end of the second protective cover 14 extends into the first protective cover 5 and is sleeved outside the screw rod 10 in a sealing mode, a lubricating grease injection port is formed in the other end of the second protective cover 14, a plugging device is arranged at the injection port, and lubricating grease 9 is filled in the second protective cover 14. In this embodiment, the first fastening member 4 is a screw connection member, the plugging device includes a plug rod 15 and a plug 16 which are fixedly connected, and the plug rod 15 extends into the injection port to complete the plugging of the grease 9. The screw sleeve 11 is fixedly installed in the second protective cover 14, the second protective cover 14 is fixedly connected with the screw rod 10 through the screw sleeve 11, and the screw sleeve 11 is provided with an oil passing hole 17 penetrating through the screw sleeve 11, so that lubricating grease 9 can smoothly pass through the oil passing hole 17 to reach the other end of the second protective cover 14 when the lubricating grease 9 is injected, and the lubricating effect on the screw rod 10 is ensured.
In order to further improve the protection requirement of the screw rod 10, a first sealing ring 8 and a first gland 6 are installed at one end of the second protection cover 14 close to the bearing box 2, the first sealing ring 8 is installed between a gap between the screw rod 10 and the second protection cover 14 and is tightly pressed and fixed through the first gland 6, the first gland 6 is fixedly installed at the end of the second protection cover 14 through a second fastening member 7, and the second fastening member 7 is a screw connection member in the embodiment. By providing the first seal ring 8 and the first gland 6, the sealing property between the second boot 14 and the lead screw 10 is improved, and leakage of grease can be prevented.
The end of the first protection cover 5 far away from the bearing box 2 is provided with a second sealing ring 12 and a second gland 13, and the second sealing ring 12 is arranged between the gap between the first protection cover 5 and the second protection cover 14 and is pressed and fixed by the second gland 13. Through setting up second sealing washer 12 and second gland 13, then can effectively prevent ore pulp and dust to get into in the protection casing, the work of protection lead screw 10 and lubricating grease 9 is not influenced.
To sum up, the lead screw self-lubricating protection valve of this embodiment through setting up two-layer protection casing, can realize the dual protection to the valve lead screw, avoids the lead screw to receive external environment's influence, and injects lubricating grease then to make the lead screw be in good lubricated state in the course of the work in the second protection casing, improves the life of lead screw.
The present invention and its embodiments have been described above schematically, and the description is not limited thereto, and what is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, if the person skilled in the art receives the teaching of the present invention, without departing from the inventive spirit of the present invention, the person skilled in the art should also design the similar structural modes and embodiments without creativity to the technical solution, and all shall fall within the protection scope of the present invention.
Claims (9)
1. The utility model provides a lead screw self-lubricating protection valve, includes bearing box (2), support (3) and lead screw (10), bearing box (2) are inserted to wherein one end of lead screw (10), pass and connect the bearing, support (3) fixed mounting is in the outside of bearing box (2), its characterized in that: the device also comprises a first protective cover (5) and a second protective cover (14); the first protective cover (5) is fixedly arranged on the bracket (3), and the screw rod (10) penetrates through the first protective cover (5); one end of the second protective cover (14) extends into the first protective cover (5) and is sleeved outside the screw rod (10) in a sealing mode, the other end of the second protective cover (14) is provided with a lubricating grease injection port, and a plugging device is arranged at the injection port; the second boot (14) is filled with grease (9).
2. The lead screw self-lubricating protection valve of claim 1, characterized in that: the wire sleeve (11) is fixedly installed in the second protective cover (14), and the second protective cover (14) is fixedly connected with the screw rod (10) through the wire sleeve (11).
3. The lead screw self-lubricating protection valve according to claim 2, characterized in that: an oil passing hole (17) penetrating through the thread sleeve (11) is formed in the thread sleeve (11).
4. The lead screw self-lubricating protection valve according to claim 1, characterized in that: still including installing first sealing washer (8) and first gland (6) that second protection casing (14) are close to bearing box (2) one end, first sealing washer (8) are installed between the clearance of lead screw (10) and second protection casing (14), compress tightly fixedly through first gland (6).
5. The lead screw self-lubricating protection valve of claim 4, characterized in that: the first gland (6) is fixedly arranged at the end part of the second protective cover (14) through a second fastener (7).
6. The lead screw self-lubricating protection valve of claim 4, characterized in that: still including installing second sealing washer (12) and second gland (13) of keeping away from bearing box (2) one end in first protection casing (5), second sealing washer (12) are installed between the clearance of first protection casing (5) and second protection casing (14), compress tightly fixedly through second gland (13).
7. The screw self-lubricating protection valve according to any one of claims 1-6, characterized in that: the plugging device comprises a plug rod (15) and a plug (16) which are fixedly connected, wherein the plug rod (15) extends into the injection port to complete the plugging of the lubricating grease (9).
8. The screw self-lubricating protection valve according to any one of claims 1-6, characterized in that: and a handle (1) is arranged at one end of the screw rod (10) far away from the second protective cover (14).
9. The screw self-lubricating protection valve according to any one of claims 1-6, characterized in that: the first protective cover (5) is fixedly connected with the support (3) through a first fastener (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222314252.4U CN217874120U (en) | 2022-08-31 | 2022-08-31 | Lead screw self-lubricating protection valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222314252.4U CN217874120U (en) | 2022-08-31 | 2022-08-31 | Lead screw self-lubricating protection valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217874120U true CN217874120U (en) | 2022-11-22 |
Family
ID=84081601
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222314252.4U Active CN217874120U (en) | 2022-08-31 | 2022-08-31 | Lead screw self-lubricating protection valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217874120U (en) |
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2022
- 2022-08-31 CN CN202222314252.4U patent/CN217874120U/en active Active
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