CN210278383U - Locking and anti-loosening device for filter pressing equipment - Google Patents
Locking and anti-loosening device for filter pressing equipment Download PDFInfo
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- CN210278383U CN210278383U CN201920782794.XU CN201920782794U CN210278383U CN 210278383 U CN210278383 U CN 210278383U CN 201920782794 U CN201920782794 U CN 201920782794U CN 210278383 U CN210278383 U CN 210278383U
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Abstract
The utility model relates to a locking device of filter-pressing equipment belongs to filter-pressing equipment technical field. The utility model discloses do not do corresponding change condition under power device, pressure device, the equipment body etc. that filter pressing equipment normally used, promote the pressure strip during operation at equipment hydraulic system, newly increase pressure strip locking device and come the fixed pressure strip of secondary. After the equipment hydraulic system pushes the pressing plate to a set working state, the pressing plate locking device is rotated to a state parallel to the piston connecting rod through the hinge structure on the pressing plate oil cylinder seat, and the pressing plate is tightly pushed by the pressing plate locking device through the pressing nut barrel and the adjusting threaded connection structure between the pressing screw rods. When the hydraulic system suddenly loses pressure in the operation process of the filter pressing equipment, the equipment can normally operate, qualified products in the equipment cannot flow into a waste material collector due to the fact that the pressing plate is separated, and the continuity of the whole production system and the quality and the quantity of the batch of products are guaranteed.
Description
Technical Field
The utility model relates to a locking device of filter-pressing equipment belongs to the filter-pressing equipment technical field of cellulose acetate production in-process.
Background
In the production process of cellulose acetate, filter pressing equipment is needed to carry out precise filtration on the stock solution of cellulose acetate, so that no impurities are in the stock solution. The filter pressing equipment generally comprises a thrust plate, a filter plate filter frame, a pressing plate, a piston connecting rod and a pressing plate oil cylinder seat, wherein the filter plate filter frame is arranged between the thrust plate and the pressing plate, the thrust plate is fixedly arranged, the pressing plate is connected to the outer end of the piston connecting rod, the piston connecting rod is sleeved in the pressing plate oil cylinder, the pressing plate oil cylinder is arranged on the pressing plate oil cylinder seat, and the pressing plate oil cylinder is provided with a hydraulic system. The hydraulic system generally comprises an electromagnetic directional valve, a hydraulic oil inlet pipe, a hydraulic oil return pipe, a hydraulic pressure adjusting oil return pipe and a hydraulic system power source. The hydraulic system is electrically controlled and automatically maintains pressure, a filter plate and a filter frame are tightly pressed by a pressure plate oil cylinder by means of pressure provided by a high-pressure oil pump, the flowing direction of high-pressure oil is changed by an electromagnetic directional valve after filtration is finished, and the filter plate and the filter frame are loosened. In the whole filtering process, when the pressure of the oil cylinder is reduced, the oil pump is automatically started to supplement the pressure, and the automatic pressure maintaining is realized. Automatic pressurize causes all original paper on the hydraulic system to be on the work load state always, often causes equipment to damage such as sealed original paper, power original paper, solenoid directional valve in the operation process. If the maintaining pressure does not reach the specified pressure value or the pressure maintaining fails in the operation process of the equipment, the continuity of the whole production system cannot be guaranteed. And after the pressure suddenly fails, the filter plate and the filter frame can be loosened, so that qualified stock solution of the batch of products flows into waste stock solution to directly influence the quality and the quantity of the products.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that will solve is: the locking and anti-loosening device for the filter pressing equipment is provided, so that the filter pressing equipment can normally run when a hydraulic system suddenly fails in the running process.
For solving the technical problem the utility model discloses the technical scheme who adopts is: filter pressing equipment locking anti-loosening device, including the thrust plate, the filter plate filter frame, the pressure strip, the piston rod, clamp plate hydro-cylinder seat, the filter plate filter frame sets up between thrust plate and pressure strip, the thrust plate is fixed to be set up, the pressure strip is connected in piston rod's outer end, the pressure strip hydro-cylinder is located to the piston rod cover, the clamp plate hydro-cylinder is installed on clamp plate hydro-cylinder seat, the clamp plate hydro-cylinder has set hydraulic system, still install pressure strip locking device on the clamp plate hydro-cylinder seat, the side of pressure strip hydro-cylinder is located to pressure strip locking device, pressure strip locking device one end is articulated through pivot and pressure strip hydro-cylinder seat, the other end is used for the butt pressure strip, pressure strip locking device is including adjusting the pressure nut section of thick bamboo and adjusting compression screw, adjust the coaxial setting of pressure nut section.
Further, the method comprises the following steps: the pressing plate locking device is provided with a plurality of pressing plates at intervals along the peripheral direction of the pressing plate oil cylinder.
Further, the method comprises the following steps: the pressing plate locking device is provided with three or four pieces at intervals along the peripheral direction of the pressing plate oil cylinder.
Further, the method comprises the following steps: among the two parts of the adjusting and pressing nut barrel and the adjusting and pressing screw rod, one part is used for connecting the pressing plate oil cylinder seat, the other part is used for abutting against the pressing plate, and the adjusting handle is fixedly arranged on the outer side wall of the part used for abutting against the pressing plate.
Further, the method comprises the following steps: the adjusting handles are two pieces and are symmetrically arranged on two sides of the pressing plate locking device.
Further, the method comprises the following steps: the pressing plate locking device is used for abutting against one end of the pressing plate and being clamped with the locking clamping groove on the pressing plate.
Further, the method comprises the following steps: the end of the pressing plate locking device, which is used for abutting against the pressing plate, is provided with a movable dismounting joint, one end of the movable dismounting joint is in threaded connection with the pressing plate locking device, and the other end of the movable dismounting joint is clamped with a locking clamping groove on the pressing plate.
Further, the method comprises the following steps: a pivot hinged between the pressing plate locking device and the pressing plate oil cylinder seat is a movable connecting pin; among the pressing plate locking device and the pressing plate oil cylinder seat, the connecting hole of one forms clearance fit with the movable connecting pin, and the connecting hole of the other forms interference fit with the movable connecting pin.
Further, the method comprises the following steps: the pressing plate locking device is provided with a hook, the pressing plate cylinder base is provided with a pull rod, one end of the pull rod is hinged with the pressing plate cylinder base, and the other end of the pull rod is provided with a drag hook matched with the hook of the pressing plate locking device; when the pressing plate locking device rotates towards the direction far away from the pressing plate, the pressing plate locking device is fixed through the pull rod.
Further, the method comprises the following steps: the pressing plate oil cylinder seat is provided with a support for installing the pressing plate locking device, the support is provided with a positioning baffle, and when the pressing plate locking device rotates to be in contact with the positioning baffle, the axis of the pressing plate locking device is parallel to the axis of the piston connecting rod.
The utility model has the advantages that: under the condition that power devices, pressure devices, equipment bodies and the like which are normally used by the filter pressing equipment do not change correspondingly, when a hydraulic system of the equipment pushes the pressing plate to work, a pressing plate locking device is newly added to secondarily fix the pressing plate. After the equipment hydraulic system pushes the pressing plate to a set working state, the pressing plate locking device is rotated to a state parallel to the piston connecting rod through the hinge structure on the pressing plate oil cylinder seat, and the pressing plate is tightly pushed by the pressing plate locking device through the pressing nut barrel and the adjusting threaded connection structure between the pressing screw rods. Under the condition that the equipment fails due to sudden pressure of a hydraulic system caused by external or internal reasons, the pressing plate locking device forcibly positions the pressing plate, so that the equipment can be prevented from being interrupted, qualified products in the equipment cannot flow into a waste material collector due to the fact that the pressing plate is separated, and the continuity of the whole production system and the quality and quantity of the batch of products are guaranteed.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
fig. 2 is a schematic structural view of the middle pressure plate locking device of the present invention in a locking working position;
FIG. 3 is a schematic A-A diagram of FIG. 2;
fig. 4 is a schematic view of the fixing structure of the middle pressing plate locking device of the present invention when it is not in operation.
The labels in the figure are: 1-thrust plate, 2-filter plate and filter frame, 3-pressure plate, 4-piston connecting rod, 5-pressure plate locking device, 6-pressure plate cylinder seat, 7-electromagnetic directional valve, 8-hydraulic oil inlet pipe, 9-hydraulic oil return pipe, 10-hydraulic pressure regulation oil return pipe, 11-hydraulic system power source, 12-waste material collector, 13-movable disassembly joint, 14-regulation pressure nut barrel, 15-regulation handle, 16-regulation pressure screw, 17-movable connecting pin, 18-support, 19-pull rod, 20-positioning baffle, 21-support plate, 22-backing plate and 23-hinged mounting plate.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
As shown in fig. 1 to 4, the utility model comprises a thrust plate 1, a filter plate and filter frame 2, a pressure plate 3 and a piston connecting rod 4, the clamp plate hydro-cylinder seat 6, filter plate filter frame 2 sets up between thrust plate 1 and pressure strip 3, thrust plate 1 is fixed to be set up, pressure strip 3 is connected in the outer end of piston connecting rod 4, the pressure plate hydro-cylinder is located to the cover of piston connecting rod 4, the pressure strip hydro-cylinder is installed on clamp plate hydro-cylinder seat 6, the pressure strip hydro-cylinder has set hydraulic system, still install pressure strip locking device 5 on the pressure strip hydro-cylinder seat 6, pressure strip locking device 5 locates the side of pressure strip hydro-cylinder, 5 one end of pressure strip locking device is articulated through pivot and pressure strip hydro-cylinder seat 6, the other end is used for butt pressure strip 3, pressure strip locking device 5 is including adjusting pressure nut section of thick bamboo 14 and adjusting compression screw 16, adjust pressure nut section of thick bamboo 14 and the coaxial setting of adjusting compression screw 16, and. Among the two parts of the adjusting and pressing nut barrel 14 and the adjusting and pressing screw rod 16, one part is used for connecting the pressing plate oil cylinder seat 6, the other part is used for abutting against the pressing plate 3, and in order to facilitate the locking of the rotating operation, the one part for abutting against the pressing plate 3 is fixedly provided with an adjusting handle 15 on the outer side wall. In this embodiment, the mode is adopted in which the adjusting pressing screw 16 is used to connect the pressing plate cylinder block 6, the adjusting pressing nut barrel 14 is used to abut against the pressing plate 3, and thus the adjusting handle 15 is mounted on the adjusting pressing nut barrel 14. For further convenience of operation, the adjustment handle 15 is two pieces and is symmetrically arranged on both sides of the pressing plate locking device 5. During specific implementation, the connecting end of the adjusting compression screw 16 is a trapezoidal thread screw, the length of the trapezoidal thread screw can be manufactured according to actual needs of equipment, the trapezoidal thread matched with the adjusting compression screw 16 is arranged inside the adjusting compression nut barrel 14, the length can be manufactured according to actual conditions, and the adjusting handle 15 is welded with the adjusting compression nut barrel 14.
In order to make the structure more reliable, the pressure plate locking device 5 is provided with a plurality of pieces at intervals along the peripheral direction of the pressure plate cylinder. For simple and practical structure, the pressing plate locking device 5 is provided with three or four pieces at even intervals along the peripheral direction of the pressing plate oil cylinder.
For the convenience to exert the effort to pressure strip 3, this one end that pressure strip locking device 5 is used for butt pressure strip 3 is blocked mutually with the locking draw-in groove on the pressure strip 3. For convenient assembly, this one end that pressure strip locking device 5 is used for butt pressure strip 3 is provided with movable joint 13, and movable joint 13 one end is connected with 5 threaded connection of pressure strip locking device, the other end and the locking draw-in groove looks block on the pressure strip 3.
In order to facilitate assembly, a pivot hinged between the pressing plate locking device 5 and the pressing plate cylinder seat 6 is a movable connecting pin 17; in the two of the pressing plate locking device 5 and the pressing plate cylinder base 6, the connecting hole of one forms clearance fit with the movable connecting pin 17, and the connecting hole of the other forms interference fit with the movable connecting pin 17.
To avoid interference with the reciprocating motion of the compression plate 3, the compression plate locking device 5 should be turned outward to provide space for the movement of the compression plate 3 when not in operation. At this time, the pressing plate locking device 5 may be fixed by rope binding or the like. For making simple structure practical, the utility model discloses it is preferable to adopt following mode to realize the fixed of pressure strip locking device 5: the pressing plate locking device 5 is provided with a hook, the pressing plate cylinder base 6 is provided with a pull rod 19, one end of the pull rod 19 is hinged with the pressing plate cylinder base 6, and the other end of the pull rod 19 is provided with a drag hook matched with the hook of the pressing plate locking device 5; when the pressing plate locking device 5 rotates away from the pressing plate 3, the pressing plate locking device 5 is fixed through the pull rod 19. In order to provide the maximum movement space, in the embodiment, the compression plate locking device 5 is vertically arranged after being fixed by the pull rod 19, as shown in fig. 4.
The pressing plate cylinder seat 6 is provided with a support 18 for installing the pressing plate locking device 5, the support 18 is provided with a positioning baffle 20, and when the pressing plate locking device 5 rotates to be in contact with the positioning baffle 20, the axis of the pressing plate locking device 5 is parallel to the axis of the piston connecting rod 4. The positioning baffle 20 can position the working state of the compacting plate locking device 5 so that the applied force is perpendicular to the compacting plate 3. In specific implementation, the support 18 generally includes a positioning baffle 20, a support plate 21, a backing plate 22, and a hinge mounting plate 23, and is fabricated by welding, wherein the support plate 21 functions as a reinforcing rib, the backing plate 22 functions as a connecting member, and finally the backing plate 22 is welded and fixed to the pressing plate cylinder base 6.
When the filter plate filter press is in operation, hydraulic oil is conveyed to the press plate oil cylinder through the hydraulic oil inlet pipe 8 by the hydraulic system power source 11, the press plate oil cylinder pushes the piston connecting rod 4 and the press plate 3, the press plate 3 completely presses the filter plate filter frame 2 under the thrust action of the thrust plate 1, the filter plate filter frame 2 is a stressed filter element, and after the filter plate filter frame is pressed to a pressure value required by the process, the hydraulic oil return pipe 9 and the hydraulic pressure adjusting oil return pipe 10 start to work, so that the hydraulic system is guaranteed to be kept at a set pressure value. The pull rod 19 is put down to clamp the movable dismounting joint 13 on the locking clamping groove on the back surface of the pressing plate 3. The adjusting handle 15 is rotated by a tool such as a force application rod, the pressing plate locking device 5 is completely stressed to support the pressing plate 3 by the interaction force of the adjusting pressing nut barrel 14 and the adjusting pressing screw rod 16, and the pressing plate locking device 5 achieves the protection effect of secondary fixation. The material enters the filter plate and filter frame 2 through the feeding hole on the thrust plate 1 for filtering. And adaptive filter cloth is arranged on the filter plate and the filter frame 2. At which point the device begins normal operation.
The embodiment can ideally achieve the desired result through practical inspection, and is worthy of popularization and application like filter pressing equipment used in a high-pressure pressing pressure and continuous working process.
Claims (10)
1. Locking and loosening preventing device for filter pressing equipment, including thrust plate (1), filter plate filter frame (2), pressure strip (3), piston connecting rod (4), clamp plate hydro-cylinder seat (6), filter plate filter frame (2) set up between thrust plate (1) and pressure strip (3), thrust plate (1) is fixed to be set up, pressure strip (3) are connected in the outer end of piston connecting rod (4), in the clamp plate hydro-cylinder was located in piston connecting rod (4) cover, the clamp plate hydro-cylinder was installed on clamp plate hydro-cylinder seat (6), the clamp plate hydro-cylinder set hydraulic system, its characterized in that: still install pressure strip locking device (5) on clamp plate hydro-cylinder seat (6), the side of clamp plate hydro-cylinder is located in pressure strip locking device (5), pressure strip locking device (5) one end is articulated through pivot and clamp plate hydro-cylinder seat (6), the other end is used for butt pressure strip (3), pressure strip locking device (5) compress tightly nut section of thick bamboo (14) and adjust compression screw (16) including adjusting, adjust and compress tightly nut section of thick bamboo (14) and adjust compression screw (16) coaxial setting, and both threaded connection.
2. A filter press apparatus locking and anti-loosening device as defined in claim 1, wherein: the pressing plate locking device (5) is provided with a plurality of pieces at intervals along the peripheral direction of the pressing plate oil cylinder.
3. A filter press apparatus locking and anti-loosening device as defined in claim 2, wherein: the pressing plate locking devices (5) are evenly arranged in three or four pieces at intervals along the peripheral direction of the pressing plate oil cylinder.
4. A filter press apparatus locking and anti-loosening device as defined in claim 1, wherein: among the two parts of the adjusting and pressing nut barrel (14) and the adjusting and pressing screw rod (16), one part is used for connecting the pressing plate oil cylinder seat (6), the other part is used for abutting against the pressing plate (3), and the one part for abutting against the pressing plate (3) is fixedly provided with an adjusting handle (15) on the outer side wall.
5. A filter press apparatus locking and anti-loosening device as defined in claim 1, wherein: the two adjusting handles (15) are symmetrically arranged on two sides of the pressing plate locking device (5).
6. A filter press apparatus locking and anti-loosening device as defined in claim 1, wherein: the pressing plate locking device (5) is used for abutting against one end of the pressing plate (3) and being clamped with the locking clamping groove on the pressing plate (3).
7. A filter press apparatus locking and anti-loosening device as defined in claim 6, wherein: the end, used for abutting against the compression plate (3), of the compression plate locking device (5) is provided with a movable dismounting joint (13), one end of the movable dismounting joint (13) is in threaded connection with the compression plate locking device (5), and the other end of the movable dismounting joint is clamped with a locking clamping groove in the compression plate (3).
8. A filter press apparatus locking and anti-loosening device as defined in claim 1, wherein: a pivot hinged between the pressing plate locking device (5) and the pressing plate oil cylinder seat (6) is a movable connecting pin (17); in the pressure plate locking device (5) and the pressure plate oil cylinder seat (6), a connecting hole of one forms clearance fit with the movable connecting pin (17), and a connecting hole of the other forms interference fit with the movable connecting pin (17).
9. A filter press apparatus locking and anti-loosening device as defined in claim 1, wherein: a hook is arranged on the pressing plate locking device (5), a pull rod (19) is arranged on the pressing plate oil cylinder base (6), one end of the pull rod (19) is hinged with the pressing plate oil cylinder base (6), and a drag hook matched with the hook of the pressing plate locking device (5) is arranged at the other end of the pull rod (19); when the pressing plate locking device (5) rotates towards the direction far away from the pressing plate (3), the pressing plate locking device (5) is fixed through the pull rod (19).
10. A filter press locking and anti-loosening device as defined in any one of claims 1 to 9, wherein: a support (18) for installing the pressing plate locking device (5) is arranged on the pressing plate oil cylinder seat (6), a positioning baffle (20) is arranged on the support (18), and when the pressing plate locking device (5) rotates to be in contact with the positioning baffle (20), the axis of the pressing plate locking device (5) is parallel to the axis of the piston connecting rod (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920782794.XU CN210278383U (en) | 2019-05-28 | 2019-05-28 | Locking and anti-loosening device for filter pressing equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920782794.XU CN210278383U (en) | 2019-05-28 | 2019-05-28 | Locking and anti-loosening device for filter pressing equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210278383U true CN210278383U (en) | 2020-04-10 |
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ID=70070704
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920782794.XU Active CN210278383U (en) | 2019-05-28 | 2019-05-28 | Locking and anti-loosening device for filter pressing equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210278383U (en) |
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2019
- 2019-05-28 CN CN201920782794.XU patent/CN210278383U/en active Active
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