CN113183081B - Harmless dismounting device of sealed apron - Google Patents
Harmless dismounting device of sealed apron Download PDFInfo
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- CN113183081B CN113183081B CN202110350275.8A CN202110350275A CN113183081B CN 113183081 B CN113183081 B CN 113183081B CN 202110350275 A CN202110350275 A CN 202110350275A CN 113183081 B CN113183081 B CN 113183081B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
- B25B27/02—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same
- B25B27/023—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same using screws
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/56—Reuse, recycling or recovery technologies of vehicles
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Abstract
The invention relates to the technical field of disassembly tools and discloses a nondestructive disassembly device for a sealing cover plate, which comprises an installation base, a rotating assembly for power input, a reversing assembly for converting axial rotating motion into radial rotating motion, a plurality of lever lifting assemblies for lifting and a plurality of vacuum pull rod assemblies for adsorbing the sealing cover plate, wherein the rotating assembly is used for converting the axial rotating motion into the radial rotating motion; the reversing assembly, the lever lifting assembly and the vacuum pull rod assembly are respectively arranged on the mounting base; the reversing assembly comprises a large bearing and a main transmission worm which is arranged on the mounting base through the large bearing and can axially rotate. The invention provides multi-point force application and stable lifting force for the sealing cover plate through the uniformly distributed lever lifting assemblies and the vacuum pull rod assemblies, and the sealing cover plate cannot be distorted; and the sealing cover plate is adsorbed by the vacuum pull rod assembly, so that the sealing cover plate can be dismounted without damage.
Description
Technical Field
The invention relates to the technical field of mechanical equipment maintenance, in particular to a nondestructive dismounting device for a sealing cover plate.
Background
In order to ensure the reliability of the operation of the main shaft of the numerical control equipment, a machine tool manufacturer designs an oil-gas lubrication function on key components such as a main shaft bearing, a gear and the like, and on the other hand, in order to facilitate the maintenance and repair of subsequent key components, the machine tool manufacturer designs a maintenance window on the side of an installation cavity body, but the sealing effect of the installation cavity body directly influences the lubrication state of the key components to further influence the operation state of the main shaft, so the integrity and the sealing performance of a sealing cover plate are important indexes for ensuring the reliable operation of the key components of the main shaft.
When the maintenance and inspection of the key parts of the main shaft are carried out, the operation can be effectively carried out only by disassembling the sealing cover plate, and at present, the method for disassembling the sealing cover plate is as follows: and the hexagonal screw is arranged in the pin puller and screwed into the sealing cover plate, the sliding block is used for impacting the base of the pin puller, and the sealing cover plate is pulled out through impact force. This method has several disadvantages: 1) the hexagonal screw can be broken due to overlarge impact force, so that the sealing cover plate is damaged; 2) only single-position operation can be carried out, and symmetrical operation cannot be carried out simultaneously; 3) the single operation causes uneven stress on the sealing cover plate, generates inclination, and causes distortion or strain of the sealing cover plate; 4) the sealing cover plate is inclined due to uneven stress, so that the sealing strip is damaged.
Aiming at the defects of the existing sealing cover plate dismounting method, the sealing cover plate nondestructive dismounting device with symmetrical stress, stable lifting and simple operation is provided, the device adopts symmetrical lever lifting components to realize synchronous lifting function, avoids the problem of unbalanced stress caused by the conventional dismounting method, and is connected with the sealing cover plate to achieve the purpose of nondestructive dismounting by adopting vacuum adsorption.
Disclosure of Invention
Based on the problem that the sealing cover plate or the sealing strip is damaged easily when the sealing cover plate is detached in the prior art, the nondestructive detaching device for the sealing cover plate is provided, and the sealing cover plate is detached quickly and nondestructively.
The invention is realized by the following technical scheme:
a nondestructive dismounting device for a sealing cover plate comprises an installation base, a rotating assembly used for power input, a reversing assembly used for converting axial rotating motion into radial rotating motion, a plurality of lever lifting assemblies used for lifting, and a plurality of vacuum pull rod assemblies used for adsorbing the sealing cover plate; the reversing assembly, the lever lifting assembly and the vacuum pull rod assembly are respectively arranged on the mounting base; the reversing assembly comprises a large bearing and a main transmission worm which is arranged on the mounting base through the large bearing and can axially rotate; the lever lifting assembly comprises a steering worm wheel, a radial telescopic sleeve rod capable of radially telescopic adjusting the length, an oblique telescopic sleeve rod capable of obliquely telescopic adjusting the length, a supporting plate for supporting and mounting the whole nondestructive dismounting device and a universal joint, the steering worm wheel is mounted at the inner end of the radial telescopic sleeve rod, the outer end of the radial telescopic sleeve rod is hinged with the upper end of the oblique telescopic sleeve rod, and the lower end of the oblique telescopic sleeve rod is connected with the supporting plate through the universal joint; the power input end of the main transmission worm is connected with the rotating assembly, and the reversing assembly and the lever lifting assembly are in steering transmission connection through a worm and gear transmission structure consisting of the main transmission worm and a steering worm gear; meanwhile, the lever lifting assemblies and the vacuum pull rod assemblies are uniformly arranged by taking the rotating shaft of the main transmission worm as a central shaft respectively.
Furthermore, in order to better realize the invention, the lever lifting assembly also comprises a fixed base and a guide base which are connected below the installation bases respectively; the radial telescopic sleeve rod comprises a driving rod and a driven rod which are in threaded sleeve joint with each other; the driving rod is installed on the fixed base through a small bearing and can rotate in the fixed base, and the driven rod is installed in the guide base in a sliding mode.
Furthermore, in order to better realize the invention, the driving rod is provided with a limiting step, a key groove, a limiting clamping groove and a main rod thread; the driving rod is limited and installed in the fixed base through a limiting step which is in contact with the fixed base, one end of the driving rod is fixedly provided with a steering worm wheel through a U-shaped key, and the steering worm wheel is axially limited and installed through a worm wheel retainer ring installed in a limiting clamp groove; the driven rod is provided with a driven rod thread, a sliding surface and a lug; the driving rod is in threaded connection with a driven rod provided with a driven rod thread through a main rod thread; the sliding surface of the driven rod is in contact with the sliding profile of the inner cavity of the guide base; and the lug of the driven rod is provided with a pin shaft connecting hole for installing a connecting pin.
Furthermore, in order to better realize the invention, elastic retainer rings for fixing the position of the small bearing are respectively arranged on two sides of the small bearing.
Furthermore, in order to better realize the invention, the oblique telescopic sleeve rod comprises a support leg outer rod and a support leg inner rod which are mutually sleeved; the upper end of the outer support leg rod is hinged with the outer end of the driven rod through a connecting pin; the lower end of the support leg inner rod is hinged with the support plate through a universal joint.
Further, in order to better realize the invention, the vacuum pull rod assembly comprises a lifting sleeve, a lifting connecting rod nut, a pressure release valve and a sucker; the inner cavity of the lifting sleeve is of a through structure, the lower end of the lifting sleeve is provided with a bowl-shaped cambered surface, the middle part of the lifting sleeve is provided with a first thread connected with a lifting connecting rod nut, and the upper end of the lifting sleeve is provided with a second thread; the inner cavity of the lifting connecting rod is an air passage, the lower end of the lifting connecting rod is provided with a third thread connected with the sucker, the upper part of the lifting connecting rod is provided with a fourth thread connected with the lifting sleeve, and the upper end of the lifting connecting rod is provided with a hexagonal boss; and the side surface of the hexagonal boss is provided with a pressure relief hole and a valve mounting groove for mounting the pressure relief valve.
Furthermore, in order to better realize the invention, the pressure release valve is a valve-shaped device and comprises a valve shaft sleeve, a valve shaft adjusting rod, a sealing piston and a valve shaft locking ring; the valve shaft sleeve is a stepped shaft sleeve, the side wall of the stepped shaft sleeve is provided with a pressure relief inclined hole, the large end of the valve shaft sleeve is attached to the side face of the hexagonal boss and provided with a fifth thread, and the small end of the valve shaft sleeve is provided with a sixth thread connected with the valve mounting groove of the hexagonal boss; the middle part of the valve shaft adjusting rod is provided with a seventh thread connected with the valve shaft sleeve, the inner end of the valve shaft adjusting rod is provided with a sealing piston in a limiting mode through a valve shaft locking ring in threaded connection, and the outer end of the valve shaft adjusting rod extends out of the valve shaft sleeve and is provided with a knob.
Furthermore, in order to better realize the invention, the main transmission worm is provided with a limiting shaft shoulder, one side of the limiting shaft shoulder is provided with an optical axis, and the other side of the limiting shaft shoulder is provided with a tooth column; the reversing assembly further comprises a locking nut, an upper washer and a lower washer; the mounting base is provided with a stepped groove for mounting a locking nut, an upper gasket, a large bearing and a lower gasket; the locking nut, the upper washer, the large bearing and the lower washer are sequentially arranged on an optical axis of the main transmission worm, the locking nut is in threaded connection with the upper portion of the stepped groove, and the limiting shaft shoulder of the main transmission worm is located in the stepped groove.
Furthermore, in order to better realize the invention, the rotating assembly comprises a Z-shaped connecting rod and a handle arranged at one end of the Z-shaped connecting rod through a screw, and the other end of the Z-shaped connecting rod, which is not provided with the handle, is an external hexagonal connector; an inner hexagonal groove is formed in the top end of the main transmission worm, and the Z-shaped connecting rod is connected with the main transmission worm through an embedded connection hexagonal boss and the inner hexagonal groove.
Compared with the prior art, the invention has the following advantages and beneficial effects:
(1) the nondestructive dismounting device for the sealing cover plate, disclosed by the invention, provides stable lifting force for applying force at multiple points to the sealing cover plate through the uniformly distributed multiple lever lifting assemblies and vacuum pull rod assemblies, so that the sealing cover plate cannot be distorted; and the sealing cover plate is adsorbed by the vacuum pull rod assembly, so that the sealing cover plate can be dismounted without damage.
(2) According to the nondestructive dismounting device for the sealing cover plate, the rotating assembly is in transmission connection with the reversing assembly through the worm gear transmission structure, and the worm gear transmission structure has a self-locking function and can avoid mechanical rebound.
(3) The nondestructive dismounting device for the sealing cover plate, disclosed by the invention, is simple to operate, fast to dismount and high in practicability.
Drawings
The invention is further described in connection with the following figures and examples, all of which are intended to be open ended and within the scope of the invention.
Fig. 1 is a view showing an assembly use state of the present invention.
Fig. 2 is a schematic view of the overall structure of the present invention.
FIG. 3 is a schematic diagram of the variation of the height lifting position of the present invention.
FIG. 4 is a schematic view of the structure of the active lever according to the present invention.
Fig. 5 is a schematic view of the structure of the driven rod in the present invention.
Fig. 6 is a schematic view of a vacuum tie rod assembly according to the present invention.
Fig. 7 is a schematic structural view of the vacuum tie rod assembly of fig. 6.
Fig. 8 is a schematic structural view of the pressure release valve according to the present invention.
Wherein: 001. sealing the cover plate;
1. a rotating assembly; 2. installing a base; 3. a main drive worm; 4. an upper gasket; 5. a lower gasket; 6. a large bearing; 7. locking the nut; 8. a steering turbine; 9. a fixed base; 10. a driving lever; 11. a driven lever; 12. a guide base; 13. a leg outer bar; 14. a leg inner bar; 15. a support plate; 16. a small bearing; 17. a connecting pin; 18. a first circlip; 19. a U-shaped key; 20. a second circlip; 21. a hoisting sleeve; 22. lifting the connecting rod; 23. a lifting link nut; 24. a pressure relief valve; 25. a suction cup; 26. a universal joint;
1001. a limiting step; 1002. a keyway; 1003. a limiting clamping groove; 1004. main rod threads;
1101. a slave rod thread; 1102. a sliding surface; 1103. a tab; 1104. connecting a pin shaft with a hole;
2101. a bowl-shaped arc surface; 2102. a first thread; 2103. a second thread;
2201. a third thread; 2202. a fourth thread 2203, a hexagonal boss; 2204. a pressure relief channel; 2205. a pressure relief vent;
241. a valve shaft sleeve; 242. a valve shaft adjusting rod; 243. a sealing piston; 244. a valve shaft locking ring; 2411. a fifth thread; 2412. a sixth thread; 2413. a pressure relief inclined hole; 2421. a seventh thread.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "fixed," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally connected; they may be mechanically coupled, directly coupled, indirectly coupled through intervening media, or may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to specific situations.
The present invention will be described in further detail with reference to the accompanying drawings.
Example 1:
the invention relates to a nondestructive dismounting device for a sealing cover plate, which is realized by the following technical scheme, as shown in fig. 1-8, and comprises an installation base 2, a rotating assembly 1 for power input, a reversing assembly for converting axial rotating motion into radial rotating motion, a plurality of lever lifting assemblies for lifting, and a plurality of vacuum pull rod assemblies for adsorbing the sealing cover plate 001.
The main transmission worm 3 is provided with a limiting shaft shoulder, one side of the limiting shaft shoulder is an optical axis, and the other side of the limiting shaft shoulder is a tooth column; the reversing assembly further comprises a locking nut 7, an upper washer 4 and a lower washer 5; the mounting base 2 is provided with a stepped groove for mounting a locking nut 7, an upper washer 4, a large bearing 6 and a lower washer 5; the locking nut 7, the upper washer 4, the large bearing 6 and the lower washer 5 are sequentially arranged on an optical axis of the main transmission worm 3, the locking nut 7 is in threaded connection with the upper portion of the stepped groove, and the limiting shaft shoulder of the main transmission worm 3 is located in the stepped groove.
The rotating assembly 1 comprises a Z-shaped connecting rod and a handle arranged at one end of the Z-shaped connecting rod through a screw, and the other end of the Z-shaped connecting rod, which is not provided with the handle, is an outer hexagonal connector; an inner hexagonal groove is formed in the top end of the main transmission worm 3, and the Z-shaped connecting rod is connected with the main transmission worm 3 through an embedded connection hexagonal boss 2203 and the inner hexagonal groove.
The reversing assembly, the lever lifting assembly and the vacuum pull rod assembly are respectively arranged on the mounting base 2; the reversing assembly comprises a large bearing 6 and a main transmission worm 3 which is arranged on the mounting base 2 through the large bearing 6 and can axially rotate; the lever lifting assembly comprises a steering worm wheel 8, a radial telescopic sleeve rod capable of radially telescopic adjusting the length, an oblique telescopic sleeve rod capable of obliquely telescopic adjusting the length, a supporting plate 15 for supporting and mounting the whole nondestructive dismounting device and a universal joint 26, wherein the steering worm wheel 8 is mounted at the inner end of the radial telescopic sleeve rod, the outer end of the radial telescopic sleeve rod is hinged with the upper end of the oblique telescopic sleeve rod, and the lower end of the oblique telescopic sleeve rod is connected with the supporting plate 15 through the universal joint 26; the power input end of the main transmission worm 3 is connected with the rotating assembly 1, and the reversing assembly and the lever lifting assembly are in steering transmission connection through a worm and gear transmission structure consisting of the main transmission worm 3 and a steering worm wheel 8; meanwhile, the lever lifting assemblies and the vacuum pull rod assemblies are uniformly distributed by taking the rotating shaft of the main transmission worm 3 as a central shaft.
The lever lifting assembly comprises a steering worm wheel 8, a radial telescopic sleeve rod capable of radially stretching and adjusting the length, a slant telescopic sleeve rod capable of slantly stretching and adjusting the length, a supporting plate 15 for supporting and installing the whole lossless dismounting device, a universal joint 26, a fixing base 9 connected below the installation base 2 and a guide base 12.
The radial telescopic sleeve rod comprises a driving rod 10 and a driven rod 11 which are in threaded sleeve joint with each other; the driving rod 10 is mounted on the fixed base 9 through a small bearing 16 and can rotate in the fixed base 9, and the driven rod 11 is slidably mounted in the guide base 12. The driving rod 10 is provided with a limiting step 1001, a key groove 1002, a limiting clamping groove 1003 and a main rod thread 1004; the driving rod 10 is limited and installed in the fixed base 9 through a limiting step 1001 in contact with the fixed base 9, one end of the driving rod 10 is fixedly provided with a steering worm wheel 8 through a U-shaped key 19, and the steering worm wheel 8 is axially limited and installed through a worm wheel retainer ring installed in a limiting clamp groove 1003; the driven rod 11 is provided with a driven rod thread 1101, a sliding surface 1102 and a lug 1103; the driving rod 10 is in threaded connection with a driven rod 11 provided with a driven rod thread 1101 through a main rod thread 1004; the sliding surface 1102 of the driven rod 11 is in contact with the sliding profile of the cavity of the guide base 12; the tab 1103 of the driven lever 11 is provided with a pin shaft coupling hole 1104 for mounting the coupling pin 17. Two elastic check rings, namely a first elastic check ring 18 and a second elastic check ring 20, for fixing the position of the small bearing 16 are further respectively arranged on two sides of the small bearing 16.
The oblique telescopic sleeve rod comprises a support leg outer rod 13 and a support leg inner rod 14 which are mutually sleeved; the upper end of the leg outer rod 13 is hinged with the outer end of the driven rod 11 through a connecting pin 17; the lower end of the leg inner rod 14 is hinged to the support plate 15 by a universal joint 26.
The vacuum pull rod assembly comprises a lifting sleeve 21, a lifting connecting rod 22, a lifting connecting rod nut 23, a pressure release valve 24 and a suction cup 25; the inner cavity of the lifting sleeve 21 is of a through structure, the lower end of the lifting sleeve 21 is provided with a bowl-shaped cambered surface 2101, the middle part of the lifting sleeve 21 is provided with a first thread 2102 connected with the lifting connecting rod nut 23, and the upper end of the lifting sleeve 21 is provided with a second thread 2103; the inner cavity of the lifting connecting rod 22 is an air passage, the lower end of the lifting connecting rod 22 is provided with a third thread 2201 connected with the suction cup 25, the upper part of the lifting connecting rod 22 is provided with a fourth thread 2202 connected with the lifting sleeve 21, and the upper end of the lifting connecting rod is provided with a hexagonal boss 2203; the side surface of the hexagonal boss 2203 is provided with a pressure relief hole 2205 and a valve installation groove for installing the pressure relief valve 24.
The pressure relief valve 24 is a valve-shaped device, and comprises a valve shaft sleeve 241, a valve shaft adjusting rod 242, a sealing piston 243 and a valve shaft locking ring 244; the valve shaft sleeve 241 is a stepped shaft sleeve, a pressure relief inclined hole 2413 is formed in the side wall of the stepped shaft sleeve, the large end of the valve shaft sleeve 241 is attached to the side face of the hexagonal boss 2203 and is provided with a fifth thread 2411, and the small end of the valve shaft sleeve 241 is provided with a sixth thread 2412 connected with a valve installation groove of the hexagonal boss 2203; the middle part of the valve shaft adjusting rod 242 is provided with a seventh thread 2421 connected with the valve shaft sleeve 241, the inner end of the valve shaft adjusting rod 242 is limited and provided with a sealing piston 243 through a valve shaft locking ring 244 in threaded connection, and the outer end of the valve shaft adjusting rod 242 extends out of the valve shaft sleeve 241 and is provided with a knob.
It should be noted that, when assembling: the main transmission worm 3 is firstly installed in the installation base 2, and then the lower washer 5, the large bearing 6 and the upper washer 4 are sequentially installed in the main transmission worm 3 and are pre-tightened by the locking nut 7. And one end of the Z-shaped connecting rod of the rotating component 1 is provided with a handle, and the other end of the Z-shaped connecting rod is connected with the main transmission worm 3 through an outer hexagonal connector and an inner hexagonal groove which are connected in an embedded manner. Then, the first elastic retainer ring 18 is installed in the fixed base 9, the driving rod 10 and the small bearing 16 are assembled and installed in the fixed base 9, the second elastic retainer ring 20 is installed at the end face of the small bearing 16 to limit the position of the small bearing 16, the other end of the driving rod 10 is installed in the steering worm wheel 8 through the U-shaped key 19 installed in the key groove 1002, and the worm wheel elastic retainer ring is installed in the limiting clamping groove 1003 to limit. Furthermore, the driven rod 11 is installed in the guide base 12, and the sliding surface 1102 of the driven rod 11 is in contact with the sliding profile of the inner cavity of the guide base 12, so that the driven rod 11 is slidably installed in the guide base 12; and the driving rod 10 provided with the main rod thread 1004 is screwed into the driven rod 11 provided with the driven rod thread 1101 through screw assembly, so that the connection of the driving rod 10 and the driven rod 11 is completed, and then the fixing base 9 and the guide base 12 are connected with the mounting base 2 by using screws. At the moment, the steering worm wheel 8 is meshed with the main transmission worm 3, so that the transmission reversing of converting axial rotation motion into radial rotation motion is realized. Then, the leg outer rod 13 and the leg inner rod 14 are assembled to form an oblique telescopic sleeve rod, the support plate 15 and the universal joint 26 are connected into a whole through threads, then the leg inner rod 14 and the universal joint 26 are connected, and then the leg outer rod 13 is connected with the driven rod 11 through the connecting pin 17 to form a lever lifting assembly. The above structures together constitute a lever lifting assembly. Finally, the vacuum tie rod assembly is assembled. Firstly, the pressure release valve 24 is arranged on the lifting connecting rod 22, the lifting connecting rod 22 is arranged in the lifting sleeve 21, then the lifting sleeve 21 connected with the lifting connecting rod 22 is arranged in the mounting base 2, the lifting connecting rod nut 23 is used for fixing, finally, the sucker 25 is arranged at the working end of the lifting connecting rod 22, and the whole sealing cover plate 001 lossless dismounting device is assembled.
Power is input through the rotating assembly 1, transmitted to the reversing assembly, converted into radial motion, and transmitted to the lever lifting assemblies through the worm gear mechanism, and along with synchronous motion of the driven rods 11, as shown in the figure, the height of the mounting base 2 in the nondestructive dismounting device for the sealing cover plate 001 is increased, so that the height of the vacuum pull rod assembly sucking disc 25 is also increased. Therefore, the sealing cover plate 001 is lifted upwards under the action of the vacuum pull rod assembly, and the sealing cover plate 001 is dismounted without damage.
In general, two lever lifting assemblies are symmetrically arranged by taking the rotating shaft of the main transmission worm 3 as a central shaft, and two lever lifting assemblies are also symmetrically arranged.
Example 2:
the embodiment is optimized on the basis of the above embodiment, as shown in fig. 2, the rotating assembly 1 is provided with a handle and a Z-shaped connecting rod, the handle is a through shaft and is matched with the optical axis end of the lever connecting assembly; the lever coupling assembling includes stop screw and Z type connecting rod, and Z type connecting rod one end sets up the outer hexagonal connector that is used for being connected with final drive worm 3, and the Z type connecting rod other end is provided with the internal thread that is used for installing the handle and puts. Usually, the rotating assembly 1 is assembled and then installed into the inner hexagonal groove of the end face of the main drive worm 3 according to actual needs.
Other parts of this embodiment are the same as those of the above embodiment, and thus are not described again.
Example 3:
the present embodiment is optimized on the basis of the above embodiment, and as shown in fig. 2, the reversing assembly includes a main drive worm 3, an upper washer 4, a large bearing 6, a lower washer 5, and a lock nut 7.
The main drive worm 3 is provided with a limiting shaft shoulder for preventing the main drive worm 3 from falling off, one side of the limiting shaft shoulder is an optical axis connected with the rotating assembly 1, and the other side of the limiting shaft shoulder is a tooth column connected with the connecting lever lifting assembly. The locking nut 7, the upper washer 4, the large bearing 6 and the lower washer 5 are sequentially arranged on the optical axis of the main transmission worm 3.
Other parts of this embodiment are the same as those of the above embodiment, and thus are not described again.
Example 4:
the present embodiment is optimized on the basis of the above embodiments, as shown in fig. 2, a stepped groove for installing a lock nut 7, an upper washer 4, a large bearing 6 and a lower washer 5 is provided on the installation base 2; the locking nut 7, the upper washer 4, the large bearing 6 and the lower washer 5 are sequentially arranged on the optical axis of the main transmission worm 3. The locking nut 7 is provided with an external thread, the upper thread of the stepped groove is an internal thread, the external thread of the locking nut 7 is in threaded connection with the upper part of the stepped groove, and the limiting shaft shoulder of the main transmission worm 3 is positioned in the stepped groove. The lower end face of the locking nut 7 is in contact with the upper end face of the upper washer 4, the lower end face of the upper washer 4 is in contact with the upper portion of the outer ring of the large bearing 6, the lower portion of the outer ring of the large bearing 6 is in contact with the upper end face of the lower washer 5, and the lower end face of the lower washer 5 is in contact with the bottom face of the stepped groove. By screwing in the locking nut 7, the function of pre-tightening the large bearing 6 is realized.
Other parts of this embodiment are the same as those of the above embodiment, and thus are not described again.
Example 5:
the present embodiment is optimized on the basis of the above-mentioned embodiment, as shown in fig. 2, the number of the lever lifting assemblies is two, and the two lever lifting assemblies are symmetrically distributed on both sides of the main transmission worm 3, for example: are respectively and symmetrically arranged at the front side and the rear side of the main transmission worm 3 to form a left-right symmetrical structure. Each lever lifting assembly is provided with one steering worm wheel 8, so that the two steering worm wheels 8 are symmetrically distributed on two sides of the main transmission worm 3 to convert the axial rotation motion of the main transmission worm 3 into radial rotation motion. The fixed base 9 is provided with a groove cavity for mounting a first circlip 18, a small bearing 16 and a second circlip 20.
It is further explained that the distance between the end face of the external thread arranged on the lock nut 7 and the lower end face is larger than the distance between the upper washer 4 and the step face of the stepped groove, and a clearance of 3mm-5mm is usually reserved, so that the pre-tightening function of the large bearing 6 is ensured to be effective.
On the other hand, the two lever lifting components are symmetrical mechanisms and are respectively and symmetrically arranged on the front side and the rear side of the main transmission worm 3 to form a left-right symmetrical structure. The turning worm wheel 888 in transmission connection with the tooth column of the main transmission worm 3 has the same turning direction, and the lifting movement directions of the lever lifting assemblies symmetrically positioned at the two sides of the main transmission worm 3 can be ensured to be consistent by arranging the thread turning directions of the driving rod 10 and the driven rod 11 in the two lever lifting assemblies. For example: when the rotating assembly 1 rotates clockwise, the simultaneous lifting function is realized, and when the rotating assembly 1 rotates anticlockwise, the simultaneous descending function is realized.
Other parts of this embodiment are the same as those of the above embodiment, and thus are not described again.
Example 6:
the embodiment is optimized on the basis of the above embodiment, and as shown in fig. 2, the lever lifting assembly is a symmetrical mechanism and includes a steering worm wheel 8, a fixed base 9, a driving rod 10, a driven rod 11, a guide base 12, a leg outer rod 13, a universal joint 26, a support plate 15, a small bearing 16, a connecting pin 17, a first elastic washer, a U-shaped key 19, a second elastic retainer ring 20, a leg inner rod 14 and a worm wheel retainer ring. Wherein, the sleeved driving rod 10 and driven rod 11 form a group of radial telescopic sleeve rods; the sleeved outer leg rod 13 and the sleeved inner leg rod 14 form a group of oblique telescopic loop rods.
The driving rod 10 is of a stepped shaft structure and is provided with a limiting step 1001, a key groove 1002, a limiting clamping groove 1003 and a main rod thread 1004. The follower lever 11 is provided with a follower lever thread 1101, a slide surface 1102, and a tab 1103. On one hand, a limiting step 1001 for limiting is in contact with the fixed base 9, the U-shaped key 19 is installed in the key groove 1002, and the worm gear retainer ring is installed in the limiting clamping groove 1003; the main rod thread 1004 using an external thread and the sub-rod thread 1101 using an internal thread are engaged with each other to realize the transmission of the driving rod 10 and the driven rod 11, and the sliding surface 1102 of the driven rod 11 is in contact with the sliding profile of the inner cavity of the guide base 12, so that the rotational motion of the driving rod 10 is converted into the linear motion of the driven rod 11 with respect to the guide base 12. On the other hand, the tab 1103 of the driven link 11 is provided with a pin connecting hole 1104 for mounting the connecting pin 17, and the driven link 11 in the radial telescopic link is hinged to the leg outer link 13 in the diagonal telescopic link. The upper end of the leg outer rod 13 is hinged with the outer end of the driven rod 11 through a connecting pin 17; the lower end of the leg inner rod 14 is hinged to the support plate 15 by a universal joint 26. The big end and the small end of the support leg inner rod 14 are both provided with threads, the threads of the big end are connected with the support leg outer rod 13, and the threads of the small end are connected with the universal joint 26. The universal joint 26 is mounted on the support plate 15.
Usually, the cavity of the guide base 12 is hollow and is a cylindrical cavity or a polygonal cavity, and the inner cavity is provided with a sliding profile which is matched with the sliding surface 1102 and used for limiting the moving direction of the driven rod 11.
It should be noted that, during assembly, the steering worm wheel 8 is first mounted on the driving rod 10 through the U-shaped key 19 mounted in the key slot 1002, and a worm wheel retainer ring for limiting the position of the steering worm wheel 8 is mounted in the limit slot 1003. Then, the driving lever 10 is mounted on the fixed base 9 through the small bearing 16 for supporting the rotation of the driving lever 10; the driven rod 11 is installed in the guide base 12 and is in threaded connection with the driving rod 10 to form a transmission chain. Next, the leg outer bar 13 is hinged to the driven bar 11 via the connecting pin 17, and the leg inner bar 14 is fitted into the leg outer bar 13. Finally, the universal joint 26 and the support plate 15 are connected in sequence, and the assembly of the lever lifting assembly is completed. The driven rod 11 is limited in the guide base 12 by the contact surface of the two, and can move only along the axial direction of the driven rod 11.
Other parts of this embodiment are the same as those of the above embodiment, and thus are not described again.
Example 7:
the present embodiment is optimized based on the above embodiments, and as shown in fig. 6 and fig. 7, the vacuum pull rod assembly includes a lifting sleeve 21, a lifting connecting rod 22, a lifting connecting rod nut 23, a pressure release valve 24, and a suction cup 25; the inner cavity of the lifting sleeve 21 is of a through structure, the lower end of the lifting sleeve 21 is provided with a bowl-shaped cambered surface 2101, the middle part of the lifting sleeve 21 is provided with a first thread 2102 connected with the lifting connecting rod nut 23, and the upper end of the lifting sleeve 21 is provided with a second thread 2103; the inner cavity of the lifting connecting rod 22 is an air passage, the lower end of the lifting connecting rod 22 is provided with a third thread 2201 connected with the suction cup 25, the upper part of the lifting connecting rod 22 is provided with a fourth thread 2202 connected with the lifting sleeve 21, and the upper end of the lifting connecting rod is provided with a hexagonal boss 2203; the side surface of the hexagonal boss 2203 is provided with a pressure relief hole 2205 and a valve installation groove for installing a pressure relief valve 24; an external vacuum pump is connected with the suction cup 25 through an air passage provided with a pressure release valve 24. The sucking disc 25 is made of rubber materials and has a telescopic function.
Further, the pressure relief valve 24 is a valve-shaped device, and includes a valve shaft sleeve 241, a valve shaft adjusting rod 242, a sealing piston 243, and a valve shaft locking ring 244; the valve shaft sleeve 241 is a stepped shaft sleeve, a pressure relief inclined hole 2413 is formed in the side wall of the stepped shaft sleeve, the large end of the valve shaft sleeve 241 is attached to the side surface of the hexagonal boss 2203 and provided with a fifth thread 2411, and the small end of the valve shaft sleeve 241 is provided with a sixth thread 2412 connected with a valve installation groove of the hexagonal boss 2203; the middle part of the valve shaft adjusting rod 242 is provided with a seventh thread 2421 connected with the valve shaft sleeve 241, the inner end of the valve shaft adjusting rod 242 is limited and provided with a sealing piston 243 through a valve shaft locking ring 244 in threaded connection, and the outer end of the valve shaft adjusting rod 242 extends out of the valve shaft sleeve 241 and is provided with a knob. When the pressure relief inclined hole 2413 is opened, the pressure relief hole 2205, the pressure relief inclined hole 2413 and the pressure relief channel 2204 are communicated in sequence; when the pressure relief inclined hole 2413 is blocked, the air passages from the pressure relief hole 2205 to the pressure relief channel 2204 are not communicated.
As shown in fig. 6, 7, and 8, the first thread 2102 is an external thread, the second thread 2103 is an internal thread, the third thread 2201 is an external thread, the fourth thread 2202 is an external thread, the fifth thread 2411 is an internal thread, the sixth thread 2412 is an external thread, and the seventh thread 2421 is an internal thread. The sealing piston 243 and the valve shaft locking ring 244 are screwed to the valve shaft adjustment lever 242 to restrict the position of the valve shaft adjustment lever 242.
During assembly, the lifting connecting rod 22 is first installed in the lifting sleeve 21, then the suction cup 25 is in threaded connection with the lifting connecting rod 22, and then the pressure relief valve 24 is installed, so that the assembly of the vacuum pull rod assembly is completed. Finally, the vacuum tie rod assembly is secured to the mounting base 2 using the lift link nut 23.
When the nondestructive dismounting device is used for dismounting the sealing cover plate 001, the suction cup 25 of the vacuum pull rod assembly is firstly contacted with the sealing cover plate 001, the valve shaft adjusting rod 242 in the pressure release valve 24 is screwed in through the knob, the sealing piston 243 moves to the position of the pressure release inclined hole 2413, and the pressure release channel 2204 is cut off to form sealing. Then, the hexagonal boss 2203 of the lifting connecting rod 22 is rotated to lift the lifting connecting rod 22 relative to the lifting sleeve 21 under the matching of the threads, so that the suction cup 25 is extruded by the bowl-shaped cambered surface 2101 below the lifting sleeve 21, air in the suction cup 25 is evacuated, a pressure difference is formed between the air and the atmospheric pressure, a vacuum state is formed, and an adsorption function is realized. After the sealing cover plate 001 is detached, the valve shaft adjusting rod 242 in the pressure release valve 24 is screwed out, the sealing piston 243 moves to the side edge of the pressure release inclined hole 2413, so that the pressure release hole 2205, the pressure release inclined hole 2413 and the pressure release channel 2204 are communicated, the inside of the suction cup 25 is communicated with the atmosphere, the pressure release function is realized, and then the sealing cover plate 001 is separated from the vacuum pull rod assembly.
Of course, as an extended use method, an external vacuum pump can be used to provide negative pressure when the sealing cover plate 001 is detached. External vacuum pump is connected with sucking disc 25 through the air flue that sets up relief valve 24, and when sucking disc 25 and sealed apron 001 contact, plug up behind the atmospheric pressure release inclined hole 2413 of connection through adjusting relief valve 24, start the vacuum pump and make and produce the negative pressure between sucking disc 25 and the sealed apron 001, realize the adsorption function. After the sealing cover plate 001 is detached, the valve shaft adjusting rod 242 in the pressure release valve 24 is screwed out, the sealing piston 243 moves the side edge of the pressure release inclined hole 2413, so that the pressure release hole 2205 is communicated with the pressure release channel 2204, negative pressure disappears, the pressure release function is realized, and then the sealing cover plate 001 is separated from the vacuum pull rod assembly.
Other parts of this embodiment are the same as those of the above embodiment, and thus are not described again.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and all simple modifications and equivalent variations of the above embodiments according to the technical spirit of the present invention are included in the scope of the present invention.
Claims (7)
1. The utility model provides a harmless dismounting device of sealed apron which characterized in that: the vacuum sealing device comprises a mounting base (2), a rotating assembly (1) for power input, a reversing assembly for converting axial rotating motion into radial rotating motion, a plurality of lever lifting assemblies for lifting and a plurality of vacuum pull rod assemblies for adsorbing a sealing cover plate (001); the reversing assembly, the lever lifting assembly and the vacuum pull rod assembly are respectively arranged on the mounting base (2); the reversing assembly comprises a large bearing (6) and a main transmission worm (3) which is arranged on the mounting base (2) through the large bearing (6) and can axially rotate; the lever lifting assembly comprises a steering worm wheel (8), a radial telescopic sleeve rod capable of radially telescopic adjusting the length, an oblique telescopic sleeve rod capable of obliquely telescopic adjusting the length, a supporting plate (15) used for supporting and mounting the whole nondestructive dismounting device and a universal joint (26), the steering worm wheel (8) is mounted at the inner end of the radial telescopic sleeve rod, the outer end of the radial telescopic sleeve rod is hinged with the upper end of the oblique telescopic sleeve rod, and the lower end of the oblique telescopic sleeve rod is connected with the supporting plate (15) through the universal joint (26); the power input end of the main transmission worm (3) is connected with the rotating assembly (1), and the reversing assembly and the lever lifting assembly are in steering transmission connection through a worm and gear transmission structure consisting of the main transmission worm (3) and a steering worm gear (8); meanwhile, the lever lifting assemblies and the vacuum pull rod assemblies are uniformly distributed by taking a rotating shaft of the main transmission worm (3) as a central shaft;
the vacuum pull rod assembly comprises a lifting sleeve (21), a lifting connecting rod (22), a lifting connecting rod nut (23), a pressure release valve (24) and a sucker (25); the inner cavity of the lifting sleeve (21) is of a through structure, the lower end of the lifting sleeve (21) is provided with a bowl-shaped cambered surface (2101), the middle part of the lifting sleeve is provided with a first thread (2102) connected with the lifting connecting rod nut (23), and the upper end of the lifting sleeve is provided with a second thread (2103); the inner cavity of the lifting connecting rod (22) is an air passage, the lower end of the lifting connecting rod (22) is provided with a third thread (2201) connected with the sucker (25), the upper part of the lifting connecting rod is provided with a fourth thread (2202) connected with the lifting sleeve (21), and the upper end of the lifting connecting rod is provided with a hexagonal boss (2203); the side surface of the hexagonal boss (2203) is provided with a pressure relief hole (2205) and a valve installation groove for installing a pressure relief valve (24);
the pressure release valve (24) is a valve-shaped device and comprises a valve shaft sleeve (241), a valve shaft adjusting rod (242), a sealing piston (243) and a valve shaft locking ring (244); the valve shaft sleeve (241) is a stepped shaft sleeve, a pressure relief inclined hole (2413) is formed in the side wall of the stepped shaft sleeve, the large end of the valve shaft sleeve (241) is attached to the side face of the hexagonal boss (2203) and provided with a fifth thread (2411), and the small end of the valve shaft sleeve (241) is provided with a sixth thread (2412) connected with the valve installation groove of the hexagonal boss (2203); the middle part of the valve shaft adjusting rod (242) is provided with a seventh thread (2421) connected with the valve shaft sleeve (241), the inner end of the valve shaft adjusting rod (242) is in limited installation with a sealing piston (243) through a valve shaft locking ring (244) in threaded connection, and the outer end of the valve shaft adjusting rod (242) extends out of the valve shaft sleeve (241) and is provided with a knob; when the pressure relief inclined hole (2413) is opened, the pressure relief hole (2205), the pressure relief inclined hole (2413) and the pressure relief channel (2204) are communicated in sequence; when the pressure relief inclined hole (2413) is blocked, the air passage from the pressure relief hole (2205) to the pressure relief channel (2204) is not communicated.
2. The device for nondestructively disassembling a sealing cover plate according to claim 1, wherein: the lever lifting assembly also comprises a fixed base (9) and a guide base (12) which are connected below the mounting bases (2) respectively; the radial telescopic sleeve rod comprises a driving rod (10) and a driven rod (11) which are in threaded sleeve joint with each other; the driving rod (10) is mounted on the fixed base (9) through a small bearing (16) and can rotate in the fixed base (9), and the driven rod (11) is slidably mounted in the guide base (12).
3. The device for nondestructively disassembling a sealing cover plate according to claim 2, wherein: the driving rod (10) is provided with a limiting step (1001), a key groove (1002), a limiting clamping groove (1003) and a main rod thread (1004); the driving rod (10) is installed in the fixed base (9) in a limiting mode through a limiting step (1001) in contact with the fixed base (9), one end of the driving rod (10) is fixedly provided with a steering worm wheel (8) through a U-shaped key (19), and the steering worm wheel (8) is installed in an axial limiting mode through a worm wheel retainer ring installed in a limiting clamp groove (1003); the driven rod (11) is provided with a driven rod thread (1101), a sliding surface (1102) and a lug (1103); the driving rod (10) is in threaded connection with a driven rod (11) provided with a driven rod thread (1101) through a main rod thread (1004); the sliding surface (1102) of the driven rod (11) is in contact with the sliding profile of the inner cavity of the guide base (12); the lug (1103) of the driven rod (11) is provided with a pin shaft connecting hole (1104) for installing a connecting pin (17).
4. The device for nondestructively disassembling a sealing cover plate according to claim 2, wherein: elastic retainer rings for fixing the position of the small bearing (16) are further arranged on two sides of the small bearing (16) respectively.
5. The device for nondestructively disassembling a sealing cover plate according to claim 3, wherein: the oblique telescopic sleeve rod comprises a support leg outer rod (13) and a support leg inner rod (14) which are mutually sleeved; the upper end of the supporting leg outer rod (13) is hinged with the outer end of the driven rod (11) through a connecting pin (17); the lower end of the support leg inner rod (14) is hinged with the support plate (15) through a universal joint (26).
6. The device for nondestructively disassembling a sealing cover plate according to claim 1, wherein: the main transmission worm (3) is provided with a limiting shaft shoulder, one side of the limiting shaft shoulder is an optical axis, and the other side of the limiting shaft shoulder is a tooth column; the reversing assembly further comprises a locking nut (7), an upper washer (4) and a lower washer (5); the mounting base (2) is provided with a stepped groove for mounting a locking nut (7), an upper gasket (4), a large bearing (6) and a lower gasket (5); the locking nut (7), the upper washer (4), the large bearing (6) and the lower washer (5) are sequentially arranged on an optical axis of the main transmission worm (3), the locking nut (7) is in threaded connection with the upper portion of the stepped groove, and the limiting shaft shoulder of the main transmission worm (3) is located in the stepped groove.
7. The device for nondestructively disassembling a sealing cover plate according to claim 6, wherein: the rotating assembly (1) comprises a Z-shaped connecting rod and a handle arranged at one end of the Z-shaped connecting rod through a screw, and the other end of the Z-shaped connecting rod, which is not provided with the handle, is an external hexagonal connector; an inner hexagonal groove is formed in the top end of the main transmission worm (3), and the Z-shaped connecting rod is connected with the main transmission worm (3) through an embedded connection hexagonal boss (2203) and the inner hexagonal groove.
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