CN110614223A - Stretching type tensioning mechanism for screen mesh of vibrating screen and tensioning method thereof - Google Patents
Stretching type tensioning mechanism for screen mesh of vibrating screen and tensioning method thereof Download PDFInfo
- Publication number
- CN110614223A CN110614223A CN201910916548.3A CN201910916548A CN110614223A CN 110614223 A CN110614223 A CN 110614223A CN 201910916548 A CN201910916548 A CN 201910916548A CN 110614223 A CN110614223 A CN 110614223A
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- CN
- China
- Prior art keywords
- screen
- adjusting nut
- coarse
- movable
- shell
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/28—Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
- B07B1/48—Stretching devices for screens
Landscapes
- Combined Means For Separation Of Solids (AREA)
Abstract
A straining type tensioning mechanism of a vibrating screen mesh and a tensioning method thereof are disclosed, the mechanism comprises a coarse adjusting nut, a fine adjusting nut, an adjusting bolt, a shell and a movable clamping finger, wherein an installation cavity is arranged at the outer side end of the shell, a groove is arranged at the outer side end of the coarse adjusting nut, and the movable clamping finger is positioned at the inner side of a screen frame and used for installing the screen mesh; one end of the adjusting bolt extends into the inner side of the screen frame and is fixedly connected with the movable clamping finger, the other end of the adjusting bolt penetrates through the shell and is sequentially in threaded connection with the coarse adjusting nut and the fine adjusting nut, the coarse adjusting nut is located in the mounting cavity of the outer side end of the shell, and the fine adjusting nut is located in the groove of the outer side end of the coarse adjusting nut. The tensioning condition of the screen is adjusted according to actual working requirements by adopting a coarse adjustment mechanism and a fine adjustment mechanism, so that the screen is tightly tensioned, and the service life of the screen is prolonged.
Description
Technical Field
The invention relates to the technical field of vibrating screens, in particular to a tightening type tensioning mechanism and a tightening method for a screen of a vibrating screen.
Background
The vibrating screen is widely used in mine, coal, petroleum, smelting, building material, food processing and other departments, and is used for various technological processes of material screening, sorting, dewatering, medium removing, material conveying and the like. The vibrating screen is used as the first stage solid control equipment for treating the petroleum drilling liquid, and the vibrating screen firstly clearly removes the larger solid phase particles in the drilling liquid returned from the well bottom, so that the vibrating screen is particularly suitable for screening various drilling liquids.
No matter how other mechanical solid control equipment plays a role in improving the performance of drilling fluid, the vibrating screen is always a necessary device in the current drilling equipment. The tensioning mechanism is used as an important component of the vibrating screen and plays an important role in the drilling fluid screening capacity of the vibrating screen.
However, in the drilling fluid vibrating screen used in oil drilling, the screen is fixed, mud leakage can occur when the screen holes are muddy, and the abrasion of the screen can be accelerated when rock debris stays on the screen for a long time.
Disclosure of Invention
Aiming at the problems, the invention provides a tensioning mechanism and a tensioning method for a screen of a vibrating screen.
The technical scheme for solving the problems is as follows:
a straining type tensioning mechanism for a screen of a vibrating screen is characterized by comprising a coarse adjusting nut, a fine adjusting nut, an adjusting bolt, a shell and a movable clamping finger, wherein an installation cavity is arranged at the outer side end of the shell, a groove is arranged at the outer side end of the coarse adjusting nut, and the movable clamping finger is positioned at the inner side of a screen frame and used for installing the screen; one end of the adjusting bolt extends into the inner side of the screen frame and is fixedly connected with the movable clamping finger, the other end of the adjusting bolt penetrates through the shell and is sequentially in threaded connection with the coarse adjusting nut and the fine adjusting nut, the coarse adjusting nut is located in the mounting cavity of the outer side end of the shell, and the fine adjusting nut is located in the groove of the outer side end of the coarse adjusting nut.
Preferably, the movable finger is embedded in the movable finger guide plate and is fixedly connected with the end part of the adjusting bolt.
Preferably, an arc-shaped steel plate spring is arranged between the movable finger-clamping guide plate and the inner wall of the screen frame.
Preferably, the movable finger-clamping plate is fixedly connected with the shell through a nut and a bolt.
Preferably, the outer side wall of the coarse adjustment nut is provided with a circle of boss, and a circle of limiting table matched with the boss is arranged in the shell installation cavity.
Preferably, the adjusting bolt is arranged obliquely, and one end of the adjusting bolt, which is connected with the movable clamping finger, faces upwards.
Preferably, V-shaped grooves are formed between adjacent clamping fingers on the movable clamping fingers.
The adjusting method of the screen tightening type tensioning mechanism of the vibrating screen is characterized by comprising the following steps of:
1) the movable finger clamping plate is embedded and installed on the movable finger clamping plate, and then the movable finger clamping plate is fixedly connected with a shell on the outer side of the screen frame through nuts and bolts;
2) connecting the screen mesh with the clamping fingers on the movable clamping fingers, and installing an arc-shaped steel plate spring between the movable clamping finger guide plate and the inner side wall of the screen frame;
3) one end of an adjusting bolt penetrates through the shell and the screen frame and is fixedly connected with the movable finger clamping plate, and the other end of the adjusting bolt is screwed with a coarse adjusting nut and a fine adjusting nut, so that the coarse adjusting nut is positioned in an installation cavity of the outer side end of the shell, and the fine adjusting nut is positioned in a groove of the outer side end of the coarse adjusting nut;
4) the coarse adjustment nut is rotated to enable the adjusting bolt to move outwards the screen, so that the coarse adjustment of the tensioning of the screen is realized; then, the fine adjustment nut is rotated to drive the adjusting bolt to move outwards the screen mesh, so that the fine adjustment of the tensioning of the screen mesh is realized.
The invention has the beneficial effects that:
the tensioning device is ingenious in structural design, and the steel sheet spring is combined to reduce the deformation of the mechanism; meanwhile, a coarse adjustment mechanism and a fine adjustment mechanism are adopted, the tensioning condition of the screen is adjusted according to actual working requirements, the screen is tightly tensioned, and the service life of the screen is prolonged. The tensioning mechanism is relatively flexible, simple and easy to operate, improves the production efficiency, can reduce the abrasion of the screen and prolongs the service life of the screen.
Drawings
FIG. 1 is a schematic structural view of the tensioning mechanism of the present invention;
FIG. 2 is a left side view of FIG. 1;
in the figure: the device comprises a coarse adjusting nut 1, a fine adjusting nut 2, an adjusting bolt 3, a shell 4, a movable clamping finger 5, a mounting cavity 6, a groove 7, a steel plate spring 8, a nut 9, a boss 10, a limiting table 11, a V-shaped groove 12 and a movable clamping finger guide plate 13.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the patent embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments obtained by a person skilled in the art based on the embodiments in the patent of the invention without any inventive work belong to the protection scope of the patent of the invention.
A tightening type tensioning mechanism for a screen of a vibrating screen comprises a coarse adjustment nut 1, a fine adjustment nut 2, an adjusting bolt 3, a shell 4 and a movable clamping finger 5, wherein an installation cavity 6 is arranged at the outer side end of the shell, a groove 7 is arranged at the outer side end of the coarse adjustment nut, and the movable clamping finger is located on the inner side of a screen frame and used for installing the screen; one end of the adjusting bolt extends into the inner side of the screen frame and is fixedly connected with the movable clamping finger, the other end of the adjusting bolt penetrates through the shell and is sequentially in threaded connection with the coarse adjusting nut and the fine adjusting nut, the coarse adjusting nut is located in the mounting cavity of the outer side end of the shell, and the fine adjusting nut is located in the groove of the outer side end of the coarse adjusting nut.
The movable clamping fingers are embedded in the movable clamping finger guide plate 13 and fixedly connected with the end parts of the adjusting bolts. An arc-shaped steel plate spring 8 is arranged between the movable finger-clamping plate and the inner wall of the screen frame. The movable finger-clamping plate is fixedly connected with the shell through a nut 9 and a bolt.
The outer side wall of the coarse adjustment nut is provided with a circle of bosses 10, and a circle of limiting tables 11 matched with the bosses are arranged in the shell installation cavity, so that excessive tensioning is prevented, and the screen is prevented from being broken. The adjusting bolt is obliquely arranged, and one end of the adjusting bolt, which is connected with the movable clamping finger, faces upwards. And V-shaped grooves 12 are formed between adjacent clamping fingers on the movable clamping fingers.
The adjusting method of the screen tightening type tensioning mechanism of the vibrating screen is characterized by comprising the following steps of:
1) the movable finger clamping plate is embedded and installed on the movable finger clamping plate, and then the movable finger clamping plate is fixedly connected with a shell on the outer side of the screen frame through nuts and bolts;
2) connecting the screen mesh with the clamping fingers on the movable clamping fingers, and installing an arc-shaped steel plate spring between the movable clamping finger guide plate and the inner side wall of the screen frame;
3) one end of an adjusting bolt penetrates through the shell and the screen frame and is fixedly connected with the movable finger clamping plate, and the other end of the adjusting bolt is screwed with a coarse adjusting nut and a fine adjusting nut, so that the coarse adjusting nut is positioned in an installation cavity of the outer side end of the shell, and the fine adjusting nut is positioned in a groove of the outer side end of the coarse adjusting nut;
4) the coarse adjustment nut is rotated to enable the adjusting bolt to move outwards the screen, so that the coarse adjustment of the tensioning of the screen is realized; then, the fine adjustment nut is rotated to drive the adjusting bolt to move outwards the screen mesh, so that the fine adjustment of the tensioning of the screen mesh is realized.
The invention is novel, ingenious, simple and easy to operate, improves the production efficiency, can tightly tension the screen and cause the screen to be subjected to factors such as overlarge extrusion stress to generate larger abrasion, can effectively prolong the service life of the screen, and ensures that the screen is always in the optimal working state.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present invention are included in the protection scope of the present invention.
Claims (8)
1. A straining type tensioning mechanism for a screen of a vibrating screen is characterized by comprising a coarse adjusting nut, a fine adjusting nut, an adjusting bolt, a shell and a movable clamping finger, wherein an installation cavity is arranged at the outer side end of the shell, a groove is arranged at the outer side end of the coarse adjusting nut, and the movable clamping finger is positioned at the inner side of a screen frame and used for installing the screen; one end of the adjusting bolt extends into the inner side of the screen frame and is fixedly connected with the movable clamping finger, the other end of the adjusting bolt penetrates through the shell and is sequentially in threaded connection with the coarse adjusting nut and the fine adjusting nut, the coarse adjusting nut is located in the mounting cavity of the outer side end of the shell, and the fine adjusting nut is located in the groove of the outer side end of the coarse adjusting nut.
2. The taut-type tensioning mechanism according to claim 1, wherein said movable fingers are mounted in said movable finger guide in an embedded manner and are fixedly connected to the ends of said adjusting bolts.
3. The taut tensioning mechanism according to claim 2, wherein said movable finger guide is mounted to the inner wall of the frame by a leaf spring.
4. The taut tensioning mechanism according to claim 2, wherein said movable finger guide is fixedly attached to said housing by means of nuts and bolts.
5. The taut-type tensioning mechanism according to claim 1, wherein a ring of bosses is provided on an outer side wall of said coarse adjustment nut, and a ring of limiting tables is provided in said housing installation cavity and is engaged with said bosses.
6. The taut-type tensioning mechanism according to claim 1, wherein said adjusting bolt is disposed at an angle such that an end thereof connected to said movable finger is directed upward.
7. The taut tensioning mechanism according to claim 1, wherein said movable fingers have V-shaped grooves between adjacent fingers.
8. A method of adjusting a tension mechanism of a shaker screen in accordance with any one of claims 1 to 7, comprising the steps of:
1) the movable finger clamping plate is embedded and installed on the movable finger clamping plate, and then the movable finger clamping plate is fixedly connected with a shell on the outer side of the screen frame through nuts and bolts;
2) connecting the screen mesh with the clamping fingers on the movable clamping fingers, and installing an arc-shaped steel plate spring between the movable clamping finger guide plate and the inner side wall of the screen frame;
3) one end of an adjusting bolt penetrates through the shell and the screen frame and is fixedly connected with the movable finger clamping plate, and the other end of the adjusting bolt is screwed with a coarse adjusting nut and a fine adjusting nut, so that the coarse adjusting nut is positioned in an installation cavity of the outer side end of the shell, and the fine adjusting nut is positioned in a groove of the outer side end of the coarse adjusting nut;
4) the coarse adjustment nut is rotated to enable the adjusting bolt to move outwards the screen, so that the coarse adjustment of the tensioning of the screen is realized; then, the fine adjustment nut is rotated to drive the adjusting bolt to move outwards the screen mesh, so that the fine adjustment of the tensioning of the screen mesh is realized.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910916548.3A CN110614223A (en) | 2019-09-26 | 2019-09-26 | Stretching type tensioning mechanism for screen mesh of vibrating screen and tensioning method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910916548.3A CN110614223A (en) | 2019-09-26 | 2019-09-26 | Stretching type tensioning mechanism for screen mesh of vibrating screen and tensioning method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110614223A true CN110614223A (en) | 2019-12-27 |
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ID=68924225
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910916548.3A Pending CN110614223A (en) | 2019-09-26 | 2019-09-26 | Stretching type tensioning mechanism for screen mesh of vibrating screen and tensioning method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110614223A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4906352A (en) * | 1987-08-13 | 1990-03-06 | Production Engineered Products, Inc. | Improved tensioning assembly for vibratory screens |
| CN201669216U (en) * | 2010-04-30 | 2010-12-15 | 西安科迅机械制造有限公司 | Device for rapidly tensioning screen of vibrating screen |
| CN102896091A (en) * | 2012-10-26 | 2013-01-30 | 扬州大学 | Tensioning mechanism for screen mesh of vibrating screen |
| CN205165182U (en) * | 2015-11-18 | 2016-04-20 | 西安科迅机械制造有限公司 | Quick wire screen tension system of cleaner |
| CN107030000A (en) * | 2017-05-22 | 2017-08-11 | 新乡市振英机械设备有限公司 | A kind of adjustable vibration screen screen cloth strainer |
| CN207981622U (en) * | 2017-12-14 | 2018-10-19 | 江苏俊浩机械有限公司 | A kind of stretching device for oscillating screens |
-
2019
- 2019-09-26 CN CN201910916548.3A patent/CN110614223A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4906352A (en) * | 1987-08-13 | 1990-03-06 | Production Engineered Products, Inc. | Improved tensioning assembly for vibratory screens |
| CN201669216U (en) * | 2010-04-30 | 2010-12-15 | 西安科迅机械制造有限公司 | Device for rapidly tensioning screen of vibrating screen |
| CN102896091A (en) * | 2012-10-26 | 2013-01-30 | 扬州大学 | Tensioning mechanism for screen mesh of vibrating screen |
| CN205165182U (en) * | 2015-11-18 | 2016-04-20 | 西安科迅机械制造有限公司 | Quick wire screen tension system of cleaner |
| CN107030000A (en) * | 2017-05-22 | 2017-08-11 | 新乡市振英机械设备有限公司 | A kind of adjustable vibration screen screen cloth strainer |
| CN207981622U (en) * | 2017-12-14 | 2018-10-19 | 江苏俊浩机械有限公司 | A kind of stretching device for oscillating screens |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20191227 |
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| RJ01 | Rejection of invention patent application after publication |