CN213836077U - Lifting mechanism for upper cover of pressure screen - Google Patents
Lifting mechanism for upper cover of pressure screen Download PDFInfo
- Publication number
- CN213836077U CN213836077U CN202022467038.3U CN202022467038U CN213836077U CN 213836077 U CN213836077 U CN 213836077U CN 202022467038 U CN202022467038 U CN 202022467038U CN 213836077 U CN213836077 U CN 213836077U
- Authority
- CN
- China
- Prior art keywords
- pressure screen
- cover
- upper cover
- vertical shaft
- screw rod
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Pressure Vessels And Lids Thereof (AREA)
Abstract
The utility model discloses a lifting mechanism for the upper cover of a pressure screen, which comprises a supporting seat fixedly connected with a pressure screen cylinder, wherein the supporting seat is provided with a vertical shaft which is vertically arranged, the upper end of the vertical shaft is sleeved with a rotating sleeve, and the upper end of the rotating sleeve is fixedly connected with an end cover; the screw rod is connected with the end cover in a threaded manner, a positioning boss is fixedly arranged at the part of the screw rod, which upwards penetrates out of the end cover, and a connecting sleeve is sleeved below the positioning boss by the screw rod; the connecting sleeve is in clearance fit with the screw rod and is in limit fit with the positioning boss; the rotary sleeve is fixedly connected with a rocker arm which extends towards the upper cover of the pressure screen and extends towards the upper cover of the pressure screen, the connecting sleeve is fixedly connected with a support arm which extends towards the upper cover of the pressure screen, and the middle position of the support arm is hinged with the rocker arm through a pin shaft to form a lever structure; the other end of the support arm is connected with the upper cover of the pressure screen through a hanging ring. The utility model discloses safe steady, set up in a flexible way, convenient to use, maintenance convenience both can be used for the transformation of current pressure screen, also can be used to the upper cover of a circular cylinder, lid class equipment to promote.
Description
Technical Field
The utility model relates to a papermaking equipment technical field especially relates to a pressure screen upper cover hoist mechanism.
Background
The pressure screen is the most widely used screening equipment in pulping lines in the domestic papermaking industry. The upper cover needs to be lifted when the interior of the pressure screen is maintained and installed, and the lifting mechanism is required to be reliable due to the safety problem, so that the pressure screen is convenient to maintain on the basis of ensuring safety.
The utility model with the publication number of CN208136597U discloses a lifting device for an upper cover of a pressure screen, which comprises a supporting seat fixedly connected with a cylinder of the pressure screen, wherein a vertical shaft is fixedly connected on the supporting seat along the vertical direction, the upper end of the vertical shaft is sleeved with a rotating sleeve which is in sliding fit with the vertical shaft, and the outer wall of the rotating sleeve is connected with the upper cover of the pressure screen through a rocker arm; the top of the rotating sleeve is fixedly provided with a nut support, a threaded hole is formed in the nut support, a vertical screw rod in threaded connection with the threaded hole penetrates through the threaded hole, the vertical screw rod and the vertical shaft are coaxially arranged, a ball is arranged between the lower end of the vertical screw rod and the upper end of the vertical shaft to form supporting cooperation, an upper center hole used for containing the ball is formed in the position, corresponding to the ball, of the lower end of the vertical screw rod, and a lower center hole used for containing the ball is formed in the position, corresponding to the ball, of the upper end of the vertical shaft. The utility model discloses can reduce the frictional force between vertical screw rod and the vertical scroll to alleviate intensity of labour, shorten debugging and maintenance duration.
Utility model discloses a notice number CN208054370U relates to an equipment upper cover elevating gear, its characterized in that: the device comprises an equipment base and a support arranged on the base, wherein a sliding rod is arranged on the support, a sliding sleeve is sleeved on the sliding rod, a hydraulic cylinder is arranged between the support and the sliding sleeve, a rotating pin is hinged on the sliding sleeve, a cantilever rod is hinged to the upper portion of the rotating pin, and the outer end of the cantilever rod is connected with an upper cover of the equipment. The utility model discloses equipment upper cover elevating gear simple structure, reasonable in design are favorable to improving operating personnel's work efficiency and reduce intensity of labour.
Notice No. CN 208200283U's utility model discloses an upper cover lifting devices for filter, including a jar body, upper cover, locking bolt, retaining ring, rocking arm, guide pillar, rocker arm support, worm gear slewing mechanism, hand wheel, drive mechanism support, lead screw, stop screw, lead screw uide bushing and motor, rocker arm support and drive mechanism support set up in jar body a lateral wall, the rocker arm support set up in the upside of drive mechanism support, worm gear drive mechanism set up in drive mechanism support upper end, hand wheel and motor establish respectively both sides with worm gear drive mechanism is connected, the bottom of guide pillar with the rocker arm support is connected. The utility model discloses avoided the rocking arm to break away from the guide pillar, guaranteed the safety that the upper cover promoted, adopted thrust bearing for the rocking arm rotates nimble light, adopts travel switch, makes rocking arm lift automatic control, adopts the fit-up gap, makes the upper cover adjustment position easy, convenient operation, simple structure, the design is exquisite.
However, including the above technical solutions, most of the known lifting forms and structures of the upper cover are that the rocker arm and the upper cover are integrated, and the shaft and the support seat are directly welded on the cylinder body, which has the defects of easy deflection of the shaft, low safety and inconvenient maintenance.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a solve the problem among the prior art, provide a pressure screen upper cover hoist mechanism.
In order to solve the technical problem, the utility model adopts the following technical scheme:
a lifting mechanism for an upper cover of a pressure screen comprises a supporting seat fixedly connected with a pressure screen cylinder, wherein the supporting seat is provided with a vertical shaft which is vertically arranged, the upper end of the vertical shaft is sleeved with a rotating sleeve which is in rotating fit with the vertical shaft, the upper end of the rotating sleeve is fixedly connected with an end cover, and the end cover is in limit fit with the upper end of the vertical shaft;
the end cover is in threaded connection with a vertically arranged screw rod which downwards penetrates through the end cover, and a moving channel is arranged at the upper end of the vertical shaft corresponding to the screw rod; a positioning boss is fixedly arranged at the part of the screw rod, which upwards penetrates out of the end cover, and a connecting sleeve is sleeved below the positioning boss of the screw rod; the connecting sleeve is in clearance fit with the screw rod and is in limit fit with the positioning boss;
the rotary sleeve is fixedly connected with a rocker arm which extends towards the upper cover of the pressure screen and extends upwards, the connecting sleeve is hinged with a support arm which extends towards the upper cover of the pressure screen, and the middle position of the support arm is hinged with the rocker arm through a pin shaft to form a lever structure; the other end of the support arm is connected with the upper cover of the pressure screen through a hanging ring.
And a hand wheel is fixedly arranged at the upper end of the screw rod.
The supporting seats are arranged in the vertical direction at intervals, and the vertical shaft penetrates through the two supporting seats.
The lower end of the vertical shaft is of a stepped shaft structure with the diameter being reduced, the stepped shaft structure comprises a small-diameter section coaxially connected with the vertical shaft, and a step part is formed between the small-diameter section and the vertical shaft; the lower end of the vertical shaft penetrates through the corresponding supporting seat through the small-diameter section, and an adjusting ring is sleeved between the supporting seat on the small-diameter section and the step part.
And an oil cup is arranged at the rotating sleeve and is used for filling lubricating oil to the matching part of the rotating sleeve and the vertical shaft.
And an oil cup is arranged at the end cover and is used for filling lubricating oil to the matching part of the end cover and the screw rod.
The lifting ring is a universal rotary lifting ring.
The lower end of the universal rotary lifting ring is fixed at the center of the upper cover of the pressure screen through a support, and the upper end of the universal rotary lifting ring is connected with a connecting hole at the end part of the support arm through a shackle.
The middle of the support arm is provided with a notch extending in the length direction, and the rocker arm extends into the notch and is hinged with the notch through a pin shaft penetrating through the rocker arm.
The utility model has the advantages that:
the utility model discloses a lever structure that support arm and rocking arm formed promotes the pressure screen upper cover, the during operation: the positive rotation drives the screw rod to move downwards and drives one end of the support arm to move downwards, so that the other end of the support arm moves upwards to lift the upper cover of the pressure screen; the pressure screen upper cover is rotated by taking the vertical shaft as a center, and the rocker arm is driven to rotate the pressure screen upper cover to one side. After maintenance is finished, the pressure screen upper cover is rotated to the position above the pressure screen cylinder through the rocker arm, the screw rod is driven to move upwards through reverse rotation, one end of the support arm is driven to move upwards, and therefore the other end of the support arm moves downwards, and the pressure screen upper cover falls onto the pressure screen cylinder. The utility model discloses utilize lever principle for the axle can not incline and block and retard rotation, safe and reliable.
The utility model discloses safe steady, set up in a flexible way, convenient to use, maintenance convenience both can be used for the transformation of current pressure screen, also can be used to the upper cover of a circular cylinder, lid class equipment to promote.
The utility model discloses can reduce the hoist and mount way, need not to dismantle, a utensil is multi-purpose, reaches convenient, safe, effective, time-saving purpose.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
fig. 2 is a top view of the present invention;
fig. 3 is a schematic perspective view of the present invention.
Detailed Description
The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings.
As shown in fig. 1 to 3, the utility model discloses a pressure screen upper cover hoist mechanism, include with pressure screen barrel 1 fixed connection's supporting seat 17, supporting seat 17 is equipped with vertical arrangement's vertical scroll 16. The upper end of the vertical shaft 16 is sleeved with a rotating sleeve 9 which is in running fit with the vertical shaft, the upper end of the rotating sleeve 9 is fixedly connected with an end cover 14, and the end cover 14 is in limit fit with the upper end of the vertical shaft 16.
The end cover 14 is in threaded connection with a vertically arranged screw 12, the screw 12 penetrates through the end cover downwards, and a moving channel is arranged at the upper end of the vertical shaft 16 corresponding to the screw 12. A positioning boss 6 is fixedly arranged at the part of the screw 12 which penetrates out of the end cover upwards, and a connecting sleeve 13 is sleeved below the positioning boss 6; the connecting sleeve 13 is in clearance fit with the screw 12 and is in limit fit with the positioning boss 6.
A rocker arm 10 extending towards the pressure screen upper cover 2 and extending upwards is fixedly connected at the position of the rotating sleeve 9, a support arm 7 extending towards the pressure screen upper cover 2 is hinged at the position of the connecting sleeve 13, and the middle position of the support arm 7 is hinged with the rocker arm 10 through a pin shaft 8 to form a lever structure; the other end of the support arm 7 is connected with the upper cover of the pressure screen through a hanging ring.
In this embodiment, the upper end of the screw 12 is fixedly provided with a hand wheel 11, which facilitates the rotation of the screw.
In this embodiment, the two supporting seats 17 are arranged at intervals in the vertical direction, and the vertical shaft 16 passes through the two supporting seats to ensure the vertical state of the vertical shaft.
In order to realize vertical height fine adjustment of the vertical shaft, the lower end of the vertical shaft 16 is of a stepped shaft structure with a reduced diameter, the stepped shaft structure comprises a small-diameter section coaxially connected with the vertical shaft, and a step part is formed between the small-diameter section and the vertical shaft; the lower end of the vertical shaft penetrates through the corresponding supporting seat from the small-diameter section, and an adjusting ring 18 is sleeved between the supporting seat on the small-diameter section and the step part.
In this embodiment, an oil cup 15 is disposed at the position of the rotating sleeve 9, and the oil cup 15 is used for filling lubricating oil to the matching position of the rotating sleeve 9 and the vertical shaft 19, so that the rotation is flexible.
In this embodiment, an oil cup 19 is disposed at the end cover 14, and the oil cup 19 is used for filling lubricating oil to the matching position of the end cover 14 and the screw 12, so as to reduce the screw rotation resistance.
In this embodiment, the rings are universal rotary rings 4, the lower ends of the universal rotary rings 4 are fixed at the center of the pressure screen upper cover 2 through the support 3, and the upper ends of the universal rotary rings 4 are connected with the connecting holes at the end parts of the support arms 7 through the shackles 5. This design can make things convenient for bolt hole to align through the relative position of rotatory adjustment pressure screen upper cover and barrel.
In this embodiment, a notch extending in the length direction is formed in the middle of the support arm 7, and the rocker arm 10 extends into the notch and is hinged to the notch through a shaft 8 penetrating through a pin, so that the rocker arm and the support arm can be conveniently butted.
The utility model discloses a lever structure that support arm 7 and rocking arm 10 formed promotes pressure screen upper cover 2. The utility model discloses utilize lever principle for the axle can not incline and block and retard rotation, safe and reliable.
When in work: the forward-rotation hand wheel 11 drives the screw 12 to move downwards and drives one end of the support arm 7 to move downwards, so that the other end of the support arm 7 moves upwards to lift the pressure screen upper cover 2 (because the lifting height of the pressure screen upper cover is generally very small, about 20mm, the pressure screen upper cover is lifted approximately linearly, and meanwhile, the connecting sleeve 13 is in clearance fit with the screw 12 to ensure the displacement of one end of the connecting sleeve).
The pressure screen upper cover 2 is rotated around the vertical shaft 16, and the rocker arm 10 is driven to rotate the pressure screen upper cover 2 to one side.
After maintenance is finished, the pressure screen upper cover 2 is rotated to the position above the pressure screen cylinder 1 through the rocker arm 10, the back-rotating hand wheel 11 drives the screw rod 12 to move upwards and drives one end of the support arm 7 to move upwards, so that the other end of the support arm 7 moves downwards to enable the pressure screen upper cover 2 to fall onto the pressure screen cylinder 1, and the fastening bolt is connected with the pressure screen upper cover 2 and the pressure screen cylinder 1.
The utility model discloses safe steady, set up in a flexible way, convenient to use, maintenance convenience both can be used for the transformation of current pressure screen, also can be used to the upper cover of a circular cylinder, lid class equipment to promote.
The utility model discloses can reduce the hoist and mount way, need not to dismantle, a utensil is multi-purpose, reaches convenient, safe, effective, time-saving purpose.
In the description of the present invention, it should be understood that the terms "front", "back", "upper", "lower", "left", "right", 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 simplification of description, but do not indicate or imply that the device or element to which the description refers must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the scope of the present invention.
The above embodiments are only used for illustrating but not limiting the technical solutions of the present invention, and although the present invention is described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that: the present invention may be modified or substituted with equivalents without departing from the spirit and scope of the invention, which should be construed as being limited only by the claims.
Claims (9)
1. The utility model provides a pressure screen upper cover hoist mechanism, includes the supporting seat with pressure screen barrel fixed connection, the supporting seat is equipped with vertical arrangement's vertical scroll, its characterized in that: the upper end of the vertical shaft is sleeved with a rotating sleeve which is in rotating fit with the vertical shaft, the upper end of the rotating sleeve is fixedly connected with an end cover, and the end cover is in limit fit with the upper end of the vertical shaft;
the end cover is in threaded connection with a vertically arranged screw rod which downwards penetrates through the end cover, and a moving channel is arranged at the upper end of the vertical shaft corresponding to the screw rod; a positioning boss is fixedly arranged at the part of the screw rod, which upwards penetrates out of the end cover, and a connecting sleeve is sleeved below the positioning boss of the screw rod; the connecting sleeve is in clearance fit with the screw rod and is in limit fit with the positioning boss;
the rotary sleeve is fixedly connected with a rocker arm which extends towards the upper cover of the pressure screen and extends upwards, the connecting sleeve is hinged with a support arm which extends towards the upper cover of the pressure screen, and the middle position of the support arm is hinged with the rocker arm through a pin shaft to form a lever structure; the other end of the support arm is connected with the upper cover of the pressure screen through a hanging ring.
2. The pressure screen cover lift mechanism of claim 1, wherein: and a hand wheel is fixedly arranged at the upper end of the screw rod.
3. A pressure screen cover lifting mechanism according to claim 1 or 2, wherein: the supporting seats are arranged in the vertical direction at intervals, and the vertical shaft penetrates through the two supporting seats.
4. A pressure screen cover lift mechanism according to claim 3, wherein: the lower end of the vertical shaft is of a stepped shaft structure with the diameter being reduced, the stepped shaft structure comprises a small-diameter section coaxially connected with the vertical shaft, and a step part is formed between the small-diameter section and the vertical shaft; the lower end of the vertical shaft penetrates through the corresponding supporting seat through the small-diameter section, and an adjusting ring is sleeved between the supporting seat on the small-diameter section and the step part.
5. A pressure screen cover lifting mechanism according to claim 1 or 2, wherein: and an oil cup is arranged at the rotating sleeve and is used for filling lubricating oil to the matching part of the rotating sleeve and the vertical shaft.
6. A pressure screen cover lifting mechanism according to claim 1 or 2, wherein: and an oil cup is arranged at the end cover and is used for filling lubricating oil to the matching part of the end cover and the screw rod.
7. A pressure screen cover lifting mechanism according to claim 1 or 2, wherein: the lifting ring is a universal rotary lifting ring.
8. The pressure screen cover lift mechanism of claim 7, wherein: the lower end of the universal rotary lifting ring is fixed at the center of the upper cover of the pressure screen through a support, and the upper end of the universal rotary lifting ring is connected with a connecting hole at the end part of the support arm through a shackle.
9. A pressure screen cover lifting mechanism according to claim 1 or 2, wherein: the middle of the support arm is provided with a notch extending in the length direction, and the rocker arm extends into the notch and is hinged with the notch through a pin shaft penetrating through the rocker arm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022467038.3U CN213836077U (en) | 2020-10-30 | 2020-10-30 | Lifting mechanism for upper cover of pressure screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022467038.3U CN213836077U (en) | 2020-10-30 | 2020-10-30 | Lifting mechanism for upper cover of pressure screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213836077U true CN213836077U (en) | 2021-07-30 |
Family
ID=77012218
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022467038.3U Active CN213836077U (en) | 2020-10-30 | 2020-10-30 | Lifting mechanism for upper cover of pressure screen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213836077U (en) |
-
2020
- 2020-10-30 CN CN202022467038.3U patent/CN213836077U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112482784B (en) | Installation device applicable to assembly type building wall | |
| CN213836077U (en) | Lifting mechanism for upper cover of pressure screen | |
| CN219156364U (en) | Auxiliary arm bracket of crane | |
| CN215598744U (en) | High-efficient automatic core device | |
| CN211366844U (en) | Engineering vehicle support oil cylinder lifting device | |
| CN113460883A (en) | Metallurgical crane slewing mechanism | |
| CN219689206U (en) | Hand-operated jack device | |
| CN210818069U (en) | Lifting device for be used for automatic assemblage machine of H shaped steel | |
| CN208776228U (en) | A kind of marine machinery boom | |
| CN216443606U (en) | Track switching device of monorail equipment | |
| CN217377123U (en) | Rotating crane for hydropower station | |
| CN220245329U (en) | Hoisting device of electric hoist gantry crane | |
| CN221027244U (en) | Novel car hoist and mount are stable device | |
| CN219044808U (en) | Crane with adjustable arm length | |
| CN210393432U (en) | Lifting hook anti-disengaging mechanism for crane | |
| CN117923348B (en) | Lifting platform for equipment maintenance | |
| CN218671539U (en) | High strength tank filler sleeve baffle | |
| CN214298921U (en) | Lifting appliance convenient to replace and capable of preventing lifting rope from being abraded | |
| CN216231160U (en) | High-efficient stable elevation structure and contain net frame operating system of this structure | |
| CN216141255U (en) | Automatic rotating device of oil receiving hopper | |
| CN211099940U (en) | Two-way winch for dip coating | |
| CN218909677U (en) | Angle-adjustable lifting device | |
| CN220467386U (en) | Hoisting device | |
| CN220578725U (en) | Intelligent control rotary straight shank hook | |
| CN215249144U (en) | Device for preventing bridge type hoisting equipment from swinging |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |