CN115539238B - Quick replacement device for radial sealing system of rotor engine - Google Patents
Quick replacement device for radial sealing system of rotor engine Download PDFInfo
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- CN115539238B CN115539238B CN202211333764.3A CN202211333764A CN115539238B CN 115539238 B CN115539238 B CN 115539238B CN 202211333764 A CN202211333764 A CN 202211333764A CN 115539238 B CN115539238 B CN 115539238B
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- 238000007789 sealing Methods 0.000 title claims abstract description 121
- 238000009434 installation Methods 0.000 claims description 30
- 230000003028 elevating effect Effects 0.000 claims description 14
- 230000009471 action Effects 0.000 claims description 13
- 230000008859 change Effects 0.000 claims description 11
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 10
- 230000008569 process Effects 0.000 abstract description 7
- 230000002035 prolonged effect Effects 0.000 abstract description 7
- 238000005299 abrasion Methods 0.000 abstract description 3
- 238000005096 rolling process Methods 0.000 description 5
- 230000004308 accommodation Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 3
- 230000006872 improvement Effects 0.000 description 2
- 210000003734 kidney Anatomy 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011017 operating method Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 230000008093 supporting effect Effects 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F11/00—Arrangements of sealings in combustion engines
- F02F11/002—Arrangements of sealings in combustion engines involving cylinder heads
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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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Sealing Devices (AREA)
Abstract
The invention belongs to the technical field of engines, and particularly relates to a quick replacing device for a radial sealing system of a rotary engine, which comprises a mounting base detachably mounted on a cylinder body, wherein the cylinder body is provided with a mounting channel for the mounting base to be inserted, the mounting channel is communicated with the inside of the cylinder body, cylinder covers are arranged on two side walls of the cylinder body along the length direction of the mounting channel, and sealing plugs for sealing the end parts of the mounting channel are detachably mounted on the cylinder covers; the mounting base comprises an upper base and a lower base, the upper base is provided with a mounting groove for clamping the radial sealing piece, the upper base is vertically connected with the lower base in a sliding manner, and a plurality of first elastic pieces are arranged between the upper base and the lower base. According to the invention, the radial sealing piece can be quickly assembled and disassembled only on the cylinder cover surface, the assembly and disassembly process is simple to operate, and the use cost is reduced. The radial elastic compensation device has the radial elastic compensation function, and the abrasion loss of the radial sealing piece is compensated through radial movement after the radial sealing piece is abraded, so that the service life of the radial sealing piece is prolonged.
Description
Technical Field
The invention belongs to the technical field of engines, and particularly relates to a quick replacement device for a radial sealing system of a rotary engine.
Background
The rotary engine has the advantages of high output power, high rotating speed and the like. In a conventional rotary engine, radial sealing plates are mounted on a rotor, and in order to reduce abrasion of the radial sealing plates, rolling of rolling pins is used for replacing sliding of the original radial sealing plates, and then the radial sealing plates (rolling pins) mounted on the rotor are transferred to a cylinder body, so that abrasion of the radial sealing plates (rolling pins) is reduced. However, since the radial seal is in direct contact with the combustion chamber in the cylinder, the radial seal is worn seriously under the conditions of severe working environment and insufficient lubrication, and therefore, the replacement frequency of the radial seal is high. However, since the radial sealing piece is arranged in the cylinder, the rotor engine can only be completely disassembled when the radial sealing piece is replaced, and the problem of troublesome disassembly and assembly exists, so that the replacement efficiency of the radial sealing piece is low. Moreover, non-professional technicians are difficult to have disassembly and assembly technologies, so that the use cost is greatly increased, and the use popularization of the rotary engine is reduced.
Disclosure of Invention
The invention aims to provide a quick replacement device for a radial sealing system of a rotor engine, which aims to solve the problem that radial sealing sheets of the existing rotor engine are difficult to disassemble and assemble.
In order to achieve the above purpose, the scheme of the invention is as follows: the quick replacing device for the radial sealing system of the rotor engine comprises a mounting base which is detachably mounted on a cylinder body, wherein a mounting channel for the mounting base to be inserted is formed in the cylinder body, the mounting channel is communicated with the inside of the cylinder body, cylinder covers are arranged on two side walls of the cylinder body along the length direction of the mounting channel, and sealing plugs for sealing the end parts of the mounting channel are detachably mounted on the cylinder covers; the mounting base comprises an upper base and a lower base, wherein one end of the upper base, far away from the lower base, is provided with a mounting groove for clamping the radial sealing piece, the upper base is vertically connected with the lower base in a sliding manner, a plurality of first elastic pieces are arranged between the upper base and the lower base, one end of each first elastic piece is connected with the upper base, and the other end of each first elastic piece is connected with the lower base.
The working principle and the beneficial effects of the scheme are as follows: in this scheme, after the sealing plug on the cylinder cap is dismantled, can take out the mounting base and change radial sealing piece, need not to dismantle the rotor engine comprehensively, realized radial sealing piece's quick installation and dismantlement, and dismouting process easy operation has reduced the professional ability requirement to the staff to reduced use cost, improved use popularization nature. And moreover, the first elastic piece in the mounting base can push the upper base and the radial sealing piece to move radially towards the direction of the rotor after the radial sealing piece is worn, so that the radial sealing piece is ensured to form precise fit with the rotor, radial compensation of the radial sealing piece is realized, the wear of the radial sealing piece is reduced to a certain extent, the service life of the radial sealing piece is prolonged, and the service life of the rotor engine is prolonged.
Optionally, the device further comprises a mounting boss, the mounting boss is located in the mounting channel, the outer peripheral wall of the mounting boss is matched with the inner wall of the mounting channel, a radial sliding chute for the upper base to slide along the radial direction of the cylinder body and a placing cavity for the lower base to place are formed in the mounting boss, the cylinder cover seals part of the end part of the mounting channel, the part of the mounting channel sealed by the cylinder cover is located above the radial sliding chute, a lifting platform is arranged in the placing cavity and used for placing the lower base, a first cam block and a second cam block are connected in the placing cavity in a sliding manner, the first cam block and the second cam block are connected through a connecting piece, the connecting piece is located below the lower base, and a driving assembly for driving the connecting piece to translate is arranged in the placing cavity; track wire grooves are formed in the first cam block and the second cam block, a first track shaft and a second track shaft are arranged on the lower base, the first track shaft is matched with the track wire grooves in the first cam block, and the second track shaft is matched with the track wire grooves in the second cam block.
In this scheme, when the installation base inserts the installation boss, lower base along backing up bench axial displacement ("axial" refers to the direction parallel with the axial of rotor engine main shaft), in the radial spout of upper base slip, the installation base is in place after, and first orbit axle and the second orbit axle on the lower base are located the initial point of corresponding orbit wire casing respectively. Therefore, the connecting piece is driven by the driving assembly, the first cam block and the second cam block slide along the axial direction, the first track shaft and the second track shaft respectively enter the corresponding track wire grooves, the whole installation base is forced to move along the radial direction, the radial sealing piece part enters the cylinder body and forms precise fit with the rotor, two adjacent cavities in the cylinder reach a sealing state, and the installation base is preloaded. And when the radial sealing piece is worn to a certain degree and the elasticity of the first elastic piece is reduced to be insufficient to enable the radial sealing piece to form sealing with the rotor, the driving assembly is utilized to continuously drive the connecting piece, and then the whole installation base is forced to further radially move until the radial sealing piece forms sealing with the rotor again, so that the radial compensation of the radial sealing piece is realized, and the service life is prolonged. In addition, this scheme can also alleviate radial seal piece's shake and clap the problem and shake the line through the lateral constraint effect of last base and installation boss.
Optionally, the drive subassembly includes the threaded rod, the backing platform offered with threaded rod threaded connection's axial screw hole, the one end of threaded rod with the connecting piece rotates to be connected, the other end of threaded rod stretches out the backing platform.
In this scheme, rotate the threaded rod and can drive connecting piece axial displacement, simple structure.
Optionally, a blind accommodating hole into which the threaded rod extends is formed in the sealing plug.
In this scheme, the accommodation blind hole on the sealing plug supplies the threaded rod to stretch into to after rotating the threaded rod, the sealing plug can normally install on the cylinder cap.
Optionally, the driving assembly comprises a ball screw pair, the elevating platform is provided with a through hole for the screw of the ball screw pair to penetrate, the screw of the ball screw pair is rotationally connected to the elevating platform, and a nut of the ball screw pair is fixedly connected with the connecting piece; the mounting boss is provided with a positioning assembly for fixing the first cam block and the second cam block, the positioning assembly comprises a driving piece and a locking piece, a first sliding cavity for sliding the driving piece and a second sliding cavity for sliding the locking piece are formed in the mounting boss, the first sliding cavity and the second sliding cavity are vertical, the second sliding cavity is communicated with the placing cavity, a second elastic piece is arranged in the second sliding cavity, one end of the second elastic piece is connected with the inner wall of the second sliding cavity, the other end of the second elastic piece is connected with the locking piece, and the second elastic piece is in a compressed state; and the first cam block and the second cam are respectively provided with a plurality of locking holes for the locking piece to penetrate through, and the locking piece is separated from the locking holes under the action of the driving piece.
In this scheme, rotate the vice lead screw of ball, the vice nut of ball drives connecting piece axial displacement, and after first cam piece and the second cam piece slid in place, fix a position by locating component, ensure the supporting effect to the mounting base. In addition, in the scheme, the screw rod of the ball screw pair only rotates and cannot axially move, so that the structure improvement of the sealing plug is avoided. In addition, the second elastic piece is in a compressed state, and when the first cam block and the second cam block slide to a preset position, the locking rod is inserted into the corresponding locking hole under the action of the second elastic piece, so that the first cam block and the second cam block are locked; when the radial sealing piece is required to be radially compensated, the locking piece is separated from the corresponding locking hole by the driving piece.
Optionally, a third elastic piece is arranged in the first sliding cavity, one end of the third elastic piece is connected with the inner wall of the first sliding cavity, and the other end of the third elastic piece is connected with the driving piece; the locking piece is provided with a wedge-shaped groove, the wedge-shaped groove is provided with a first inclined plane, the first inclined plane faces the placing cavity, and one end, close to the locking piece, of the driving piece is provided with a second inclined plane matched with the first inclined plane.
In this scheme, when needing to carry out radial compensation to radial sealing piece, press the driving piece, the second inclined plane on the driving piece offsets with the first inclined plane on the locking piece, promotes the locking piece to keeping away from the direction slip of placing the chamber, and the locking piece breaks away from the locking hole that corresponds to the realization is to the release of first cam piece and second cam piece, and then gets into radial compensation operation. Then, the driving piece is reset under the action of the third elastic piece.
Optionally, a third elastic piece is arranged in the first sliding cavity, one end of the third elastic piece is propped against the inner wall of the first sliding cavity, and the other end of the third elastic piece is propped against the driving piece; the locking piece is kept away from the recess that supplies the driving piece runs through has been seted up to the one end in chamber of placing, is equipped with the commentaries on classics roller in the recess, the draw-in groove has been seted up on the driving piece one side of keeping away from the standing groove, the draw-in groove has the second inclined plane, and the second inclined plane is located the draw-in groove and keep away from on the lateral wall of third elastic component, it is relative with the tank bottom of draw-in groove to change the roller.
In this scheme, when needing to carry out radial compensation to radial sealing piece, press the driving piece, the second inclined plane on the driving piece offsets with the commentaries on classics roller, promotes the locking piece and to keeping away from the direction slip of placing the chamber, and the locking piece breaks away from the locking hole that corresponds to the realization is to the release of first cam piece and second cam piece, and then gets into radial compensation operation. Then, the driving piece is automatically reset under the action of the third elastic piece.
Optionally, one end of the installation channel, which is close to the interior of the cylinder body, is provided with a limiting part for preventing the radial sealing piece from being flushed into the interior of the cylinder body.
In this scheme, spacing portion can prevent that radial seal piece from punching into the cylinder body inside to, also can carry out spacingly to last base, the biggest radial travel of base on the restriction.
Optionally, a limiting hole is formed in the upper base, a positioning pin is in interference fit with the limiting hole, a vertically arranged waist-shaped round hole is formed in the lower base, the diameter of the waist-shaped round hole is the same as that of the positioning pin, and one end, away from the limiting hole, of the positioning pin is located in the waist-shaped round hole; the two ends of the lower base are respectively attached to the two ends of the upper base.
In this scheme, the locating pin takes place radial slip along the kidney round hole, and the both ends of lower base paste with the both ends of last base respectively, ensure to go up and take place relative slip only in radial between base and the lower base.
Optionally, the first magnetic block is embedded to be equipped with in the both sides wall on the mounting groove length direction, radial sealing piece's both ends are embedded to be equipped with the second magnetic block, and the second magnetic block is the same with the relative one end magnetic pole of first magnetic block.
In this scheme, the relative one end magnetic pole of first magnetic path and second magnetic path is the same, utilizes like polarity principle of repulsive force, reduces the frictional force to radial seal piece terminal surface to the life of extension radial seal piece.
Drawings
FIG. 1 is a schematic view of a radial seal system quick-change device for a rotary engine according to a first embodiment of the present invention;
FIG. 2 is a schematic view of the cylinder head on one side wall of the cylinder in FIG. 1 after being hidden;
FIG. 3 is a schematic view of a mounting base of a first embodiment of the present invention when mounted on a cylinder;
FIG. 4 is a front view of FIG. 3;
FIG. 5 is an enlarged schematic view of FIG. 4A;
fig. 6 is a schematic structural view of a sealing plug according to a first embodiment of the present invention;
FIG. 7 is a schematic view of a mounting base according to a first embodiment of the present invention;
FIG. 8 is a schematic view of the structure of the upper base in the first embodiment of the present invention;
FIG. 9 is a schematic view showing a structure in which a mounting boss and a mounting base are mounted on a cylinder block according to a second embodiment of the present invention;
FIG. 10 is an enlarged schematic view of B in FIG. 9;
FIG. 11 is a schematic view of a mounting boss according to a second embodiment of the present invention;
FIG. 12 is an assembly view of a lower base, a first cam block and a second cam block according to a second embodiment of the present invention;
FIG. 13 is a rear view of FIG. 11;
fig. 14 is a schematic structural view of a sealing plug in a second embodiment of the present invention;
FIG. 15 is a schematic view of the structure of the upper base in the second embodiment of the present invention;
FIG. 16 is a schematic view showing the structure of a mounting boss in a third embodiment of the present invention;
FIG. 17 is a rear view of FIG. 16;
FIG. 18 is a front view of FIG. 16;
FIG. 19 is a partial cross-sectional view taken along the direction A-A in FIG. 18;
FIG. 20 is a partial cross-sectional view of a mounting boss according to the direction A-A of FIG. 18 in accordance with a fourth embodiment of the present invention;
FIG. 21 is a partial cross-sectional view taken in the direction B-B of FIG. 21;
FIG. 22 is a partial cross-sectional view of a mounting boss according to the direction A-A of FIG. 18 in a fifth embodiment of the present invention.
Detailed Description
The following is a further detailed description of the embodiments:
The labels in the drawings of this specification include: cylinder 1, mounting channel 101, stopper 110, mounting base 2, upper base 210, mounting groove 211, stopper hole 212, dowel 213, accommodation groove 214, first stopper groove 215, second stopper groove 216, lower base 220, kidney hole 221, first elastic member 230, radial seal piece 3, rotor 4, cylinder head 5, sealing plug 6, threaded post 610, accommodation blind hole 611, plug plate 620, annular seal groove 621, hexagonal groove 622, spindle 7, mounting boss 8, radial runner 801, placement chamber 802, elevating platform 9, axial screw hole 901, first cam block 10, second cam block 11, first runner 12, second runner 13, connecting member 14, threaded rod 15, stopper piece 151, track groove 16, first track shaft 17, second track shaft 18, threaded shaft 19, nut 20, driving member 21, clamping groove 2101, locking member 22, wedge groove 2201, groove 2202, first slide chamber 23, second slide chamber 24, second elastic member 25, third elastic member 26, locking hole 27, rotating roller 28, gear 29.
Example 1
This embodiment is basically as shown in fig. 1,2,3 and 4: the utility model provides a quick replacement device of radial sealing system of rotor engine, includes the mounting base 2 of demountable installation on cylinder body 1, has offered on the cylinder body 1 and has supplied mounting base 2 male installation passageway 101, and the inside intercommunication of mounting passageway 101 and cylinder body 1 to the part of radial sealing piece 3 on the mounting base 2 stretches into cylinder body 1 inside and offsets tightly with rotor 4. Cylinder body 1 all is equipped with cylinder cap 5 on along the both sides wall of installation passageway 101 length direction, and demountable installation is used for sealing plug 6 of seal 101 tip on the cylinder cap 5, and in this embodiment, sealing plug 6 threaded connection is on cylinder cap 5. Referring to fig. 6, the sealing plug 6 includes a threaded column 610 and a plug 620, wherein an annular sealing groove 621 is formed on a side wall of the plug 620 facing the threaded column 610, and an annular sealing ring is installed in the annular sealing groove 621, so that tightness is improved; a hexagonal groove 622 is formed in a side wall of the plug 620 remote from the threaded post 610 to apply force to rotate the sealing plug 6.
Referring to fig. 7, the mounting base 2 includes an upper base 210 and a lower base 220, one end of the upper base 210 far away from the lower base 220 is provided with a mounting groove 211 into which the radial sealing piece 3 is clamped, two side walls of the mounting groove 211 in the length direction are embedded with first magnetic blocks, two ends of the radial sealing piece 3 are embedded with second magnetic blocks, one ends of the second magnetic blocks, which are opposite to the first magnetic blocks, are the same in magnetic poles, and friction force to the end face of the radial sealing piece 3 is reduced by utilizing the principle of homopolar repulsion. The upper base 210 is vertically slidably connected with the lower base 220, specifically, as shown in fig. 7 and 8, a limiting hole 212 is formed in the upper base 210, a positioning pin 213 is in interference fit in the limiting hole 212, a vertically arranged waist round hole 221 is formed in the lower base 220, the diameter of the waist round hole 221 is the same as that of the positioning pin 213, and one end, away from the limiting hole 212, of the positioning pin 213 is located in the waist round hole 221; two ends of the lower base 220 are respectively attached to two ends of the upper base 210, and a receiving groove 214 into which the lower base 220 slides is formed at the bottom end of the upper base 210.
A plurality of first elastic members 230 are disposed between the upper base 210 and the lower base 220, one end of the first elastic members 230 is welded to the upper base 210, and the other end of the first elastic members 230 is welded to the lower base 220. In this embodiment, the distance between two adjacent first elastic members 230 is 50mm, and the first elastic members 230 are springs.
As shown in fig. 5, the end of the installation channel 101 near the inside of the cylinder 1 (the end of the installation channel 101 near the rotor 4) is provided with a limiting part 110 for preventing the radial sealing piece 3 from rushing into the inside of the cylinder 1, the limiting part 110 and the cylinder 1 are integrally formed, and the limiting part 110 can wrap part of the radial sealing piece 3 in the circumferential direction of the radial sealing piece 3, so that the radial sealing piece 3 is prevented from rushing into the inside of the cylinder 1 completely, and the end of the upper base 210 near the rotor 4 is prevented from extending into the inside of the cylinder 1 to collide with the rotor 4, thereby damaging the structure of the rotor 4.
When the radial sealing piece 3 is installed, the radial sealing piece 3 is installed in the installation groove 211, the distance between the upper base 210 and the lower base 220 is shortened by applying force, namely, the whole height of the installation base 2 is reduced by compressing the first elastic piece 230, then the installation base 2 with the reduced height is inserted into the installation channel 101, after the installation base 2 is in place, under the action of the first elastic piece 230, the radial sealing piece 3 forms a seal with the rotor 4 in the cylinder body 1, finally, the sealing plug 6 is installed on the cylinder cover 5 and screwed tightly, the installation channel 101 is sealed, and the axial movement of the installation base 2 is avoided (the axial direction refers to the direction parallel to the axial direction of the main shaft 7 of the engine of the rotor 4). In the working process of the rotor 4 engine, the rotor 4 rotates, friction between the radial sealing piece 3 in the mounting groove 211 and the rotor 4 is rolling friction, and when the radial sealing piece 3 is worn, under the action of the first elastic piece 230, the radial sealing piece 3 can move towards the rotor 4 along the radial direction of the rotor 4, so that the radial sealing piece 3 can continuously form sealing with the rotor 4, radial compensation of the radial sealing piece 3 is realized, and the service life of the radial sealing piece 3 is prolonged.
When the radial sealing sheets 3 need to be replaced, a worker rotates the sealing plugs 6 on the cylinder covers 5, removes the sealing plugs 6, exposes the mounting base 2, then pulls out the mounting base 2 (if necessary, the sealing plugs 6 on the cylinder covers 5 on both sides can be removed to push out the mounting base 2), and takes out the worn radial sealing sheets 3 to replace the worn radial sealing sheets 3. The mounting base 2 is reinserted into the mounting channel 101 and the sealing plug 6 is reinstalled on the cylinder head 5 according to the above-described operating method.
In summary, in this embodiment, the radial sealing piece 3 can be quickly installed and removed only on the surface of the cylinder cover 5, and the assembly and disassembly process is simple to operate, so that the use cost is reduced, and the use popularization of the rotor 4 engine is improved. In addition, in this embodiment, after the radial sealing piece 3 is worn, the first elastic member 230 pushes the upper base 210 and the radial sealing piece 3 to move radially toward the rotor 4, so as to ensure that the radial sealing piece 3 still forms a seal with the rotor 4, realize radial compensation of the radial sealing piece 3, and prolong the service life of the radial sealing piece 3. In addition, the principle of like-pole repulsion is also utilized in the embodiment, so that the friction force on the end face of the radial sealing piece 3 is reduced, the whole assembly is realized, and the service life of the rotor 4 engine is greatly prolonged.
Example two
The present embodiment differs from the first embodiment in that: as shown in fig. 9, 10 and 11, the quick-change device for a radial sealing system of a rotary engine in this embodiment further includes a mounting boss 8, the mounting boss 8 is located in the mounting channel 101, and the outer peripheral wall of the mounting boss 8 is engaged with the inner wall of most of the mounting channel 101, and the mounting boss 8 is provided with a radial sliding groove 801 for sliding the upper base 210 along the radial direction of the cylinder 1 (the radial direction of the cylinder 1 refers to the direction parallel to the radial direction of the main shaft 7 of the transponder) and a placement cavity 802 for placing the lower base 220. The cylinder head 5 closes part of the end of the mounting channel 101, and the part of the mounting channel 101 closed by the cylinder head 5 is located above the radial runner 801.
The placing cavity 802 is provided with a raising platform 9, the raising platform 9 is used for placing the lower base 220, and as shown in fig. 11, 12 and 13, the placing cavity 802 is axially and slidably connected with the first cam block 10 and the second cam block 11, specifically, the placing cavity 802 is provided with a first chute 12 for sliding the first cam block 10 and a second chute 13 for sliding the second cam block 11. As shown in fig. 12 and 13, the first cam block 10 and the second cam block 11 are connected through a connecting piece 14, the connecting piece 14 can be welded with the first cam block 10 and the second cam block 11, and can also be movably connected with the first cam block 10 and the second cam block 11, in this embodiment, shaft pin holes for the connecting piece 14 to penetrate are formed in the first cam block 10 and the second cam block 11, so that the first cam block 10 and the second cam block 11 can be driven to slide simultaneously when the connecting piece 14 moves; the connecting piece 14 is located below the lower base 220, a driving component for driving the connecting piece 14 to translate is arranged in the placing cavity 802, in this embodiment, the driving component comprises a threaded rod 15, an axial threaded hole 901 in threaded connection with the threaded rod 15 is formed in the elevating platform 9, one end of the threaded rod 15 is rotationally connected with the connecting piece 14, and the other end of the threaded rod 15 extends out of the elevating platform 9. Referring to fig. 13, in this embodiment, a through hole through which the threaded rod 15 passes is formed in the middle of the connecting member 14, and two limiting pieces 151 are disposed at one end of the threaded rod 15, which is close to the connecting member 14, and the connecting member 14 is located between the two limiting pieces 151. In addition, in order to provide more space for the threaded rod 15 to move, as shown in fig. 14, the sealing plug 6 is provided with a receiving blind hole 611 into which the threaded rod 15 extends.
Referring to fig. 12, the first cam block 10 and the second cam block 11 are provided with track grooves 16, the lower base 220 is integrally provided with a first track shaft 17 and a second track shaft 18, the first track shaft 17 is matched with the track grooves 16 on the first cam block 10, and the second track shaft 18 is matched with the track grooves 16 on the second cam block 11. In this embodiment, the first track shaft 17 and the second track shaft 18 are not coaxial, and correspondingly, the lengths of the first cam block 10 and the second cam block 11 are different, so that the lower base 220 cannot rotate around the lower base during radial movement of the mounting base 2. As shown in fig. 15, a first limiting groove 215 for the radial movement of the first track shaft 17 and a second limiting groove 216 for the radial movement of the second track shaft 18 are formed on the side wall of the lower base 220.
In this embodiment, when the radial seal 3 is installed, the radial seal 3 is installed in the installation groove 211 of the upper base 210, and then the installation base 2 is inserted into the installation boss 8, in this process, the lower base 220 moves axially along the elevating platform 9, the upper base 210 slides into the radial chute 801, after the installation base 2 is in place, the first track shaft 17 on the lower base 220 is located at the start point of the track slot 16 of the first cam block 10, and the second track shaft 18 on the lower base 220 is located at the start point of the track slot 16 of the second cam block 11. Then, the worker rotates the threaded rod 15 clockwise, the threaded rod 15 rotates clockwise and moves out of the placing cavity 802, so that the connecting piece 14 is driven to move towards the direction close to the elevating platform 9, and the first cam block 10 and the second cam block 11 are driven to axially slide, then the first track shaft 17 moves upwards along the track shaft slot on the first cam block 10, the second track shaft 18 moves upwards along the track shaft slot 16 on the second cam block 11, so that the mounting base 2 is forced to move towards the direction of the rotor 4 along the radial direction, namely, the mounting base 2 is forced to be close to the rotor 4 until one end of the radial sealing piece 3 close to the rotor 4 enters the cylinder body 1 and forms a seal with the rotor 4, and at the moment, the first elastic piece 230 is in a compressed state and has radial elastic restoring force. Then, the worker does not rotate the threaded rod 15 any more, and the threaded rod 15 is stationary under the restriction of the axial threaded hole 901, so that the connecting member 14, the first cam block 10, and the second cam block 11 are stationary, thereby ensuring that the lower base 220 does not move in the radial direction, and pretensioning of the mounting base 2 is achieved. Finally, the worker installs the sealing plug 6 on the cylinder head 5, and in the process, the threaded rod 15 portion extending from the installation boss 8 can extend into the accommodation blind hole 611, so as to ensure that the sealing plug 6 can normally seal the cylinder head 5. In the above process, since the cylinder head 5 closes part of the end of the mounting passage 101, the mounting base 2 does not move in the axial direction.
During the use, when radial seal piece 3 receives wearing and tearing, upper base 210 slides to rotor 4 direction under the effect of first elastic component 230, thereby compensate radial seal piece 3's wearing and tearing volume, make radial seal piece 3 still can form the precision fit with rotor 4 and exert the sealed effect, and when radial seal piece 3's wearing and tearing volume can't be compensated by first elastic component 230 (i.e. rotor 4 rotates the in-process, radial seal piece 3 can't form the seal with rotor 4, first elastic component 230 is not compressed), the workman dismantles sealing plug 6 on cylinder cap 5 (note here "sealing plug 6" is for sealing plug 6 on cylinder cap 5 that is kept away from connecting piece 14) and exposes mounting boss 8, workman clockwise rotation threaded rod 15, threaded rod 15 drives connecting piece 14 to the direction that is close to pad bench 9, thereby drive first cam piece 10 and second cam piece 11 axial slip, then, first track shaft 17 continues upward movement along track shaft wire casing 16 on second cam piece 11, thereby track shaft 18 continues upward movement along track wire casing 16 on second cam piece 11, thereby force mounting 2 is in radial seal piece 4 again in the direction of radial seal 4 is in the state of being forced to install 2 again, namely, radial seal piece 4 is in the state of being in the radial seal 4 is in the direction of restoring to be in the state of being close to rotor 4, radial seal 4 again, radial seal piece 4 is forced to the moment has been in the state to the elastic component 4 is in the direction of mounting and is had. Therefore, the radial compensation of the radial sealing piece 3 can be realized again, the service life of the radial sealing piece 3 is prolonged, and the replacement frequency of the radial sealing piece 3 is reduced.
When the radial sealing piece 3 needs to be replaced, a worker rotates the sealing plug 6 on the cylinder cover 5, and removes the sealing plug 6 to expose the mounting boss 8. The worker rotates the threaded rod 15 anticlockwise, the threaded rod 15 drives the connecting piece 14, the first cam block 10 and the second cam block 11 to move away from the elevating platform 9, the first track shaft 17 moves downwards in the track wire groove 16 of the first cam block 10, and the second track shaft 18 moves downwards in the track wire groove 16 of the second cam block 11, so that the mounting base 2 moves along the radial direction away from the rotor 4 until the lower base 220 is contacted with the elevating platform 9 again, at the moment, the upper base 210 and the radial sealing piece 3 are not blocked by the cylinder cover 5, the worker can not rotate the threaded rod 15 anticlockwise any more, take out the mounting base 2, and install the mounting base 2 in place again according to the mounting method after replacing the new radial sealing piece 3. In this embodiment, the mounting boss 8 may be removed from the mounting passage 101 and replaced with a new mounting boss 8. After the replacement of the radial sealing disc 3 is completed, the sealing plug 6 is reinstalled on the cylinder head 5.
In summary, compared with the first embodiment, the present embodiment can implement manual radial compensation of the radial seal 3, thereby further prolonging the service life of the radial seal 3.
Example III
The difference between this embodiment and the second embodiment is that: the driving assembly in this embodiment is different from the driving assembly in the second embodiment in that, as shown in fig. 16 and 17, the driving assembly in this embodiment includes a ball screw pair, the raising platform 9 is provided with a through hole for the screw 19 of the ball screw pair to penetrate, the screw 19 of the ball screw pair is rotationally connected to the raising platform 9, and the nut 20 of the ball screw pair is welded with the connecting piece 14. The mounting boss 8 is provided with a positioning assembly for fixing the first cam block 10 and the second cam block 11 (the first cam block 10 and the second cam block 11 are provided with respective positioning assemblies, the positioning assembly of the first cam block 10 is described as an example in this embodiment), and referring to fig. 18 and 19, the positioning assembly includes a driving member 21 and a locking member 22, a first sliding cavity 23 for sliding the driving member 21 and a second sliding cavity 24 for sliding the locking member 22 are provided in the mounting boss 8, the first sliding cavity 23 and the second sliding cavity 24 are vertical, the second sliding cavity 24 is communicated with the placing cavity 802, a second elastic member 25 is provided in the second sliding cavity 24, one end of the second elastic member 25 is connected with an inner wall of the second sliding cavity 24, and the other end of the second elastic member 25 is connected with the locking member 22, and the second elastic member 25 is in a compressed state (the second elastic member 25 is in a compressed state because the locking member 22 abuts against the first cam block 10/the second cam block 11). The first sliding cavity 23 is internally provided with a third elastic piece 26, one end of the third elastic piece 26 is welded with the inner wall of the first sliding cavity 23, and the other end of the third elastic piece 26 is welded with the driving piece 21.
The first cam block 10 and the second cam are both provided with a plurality of locking holes 27 for the locking piece 22 to penetrate, the locking piece 22 is separated from the locking holes 27 under the action of the driving piece 21, specifically, the locking piece 22 is provided with a wedge-shaped groove 2201, the wedge-shaped groove 2201 is provided with a first inclined surface facing the placing cavity 802, and one end of the driving piece 21, which is close to the locking piece 22, is provided with a second inclined surface matched with the first inclined surface. In this embodiment, the number of the locking holes 27 is two, and the second elastic member 25 and the third elastic member 26 are springs.
In this embodiment, when the installation base 2 is pre-tightened, the worker rotates the screw rod 19 clockwise, the nut 20 drives the connecting piece 14 to move towards the elevating platform 9, the first cam block 10 and the second cam block 11 slide axially, the first track shaft 17 moves upwards in the track slot 16 on the first cam block 10, and the second track shaft 18 moves upwards in the track slot 16 on the second cam block 11, so that the installation base 2 is forced to move towards the rotor 4 along the radial direction. When the first cam block 10 and the second cam block 11 slide to a certain position, one locking hole 27 on the first cam block 10 and the second cam block 11 is opposite to the locking piece 22, so that the locking piece 22 slides towards the placing cavity 802 under the action of the second elastic piece 25, the locking piece 22 is inserted into the locking hole 27, positioning of the first cam block 10 and the second cam block 11 is achieved, and the lower base 220 is fixed in the radial direction, and pretension is achieved.
When the radial sealing piece 3 needs to be manually and radially compensated, a worker presses the driving piece 21, the driving piece 21 overcomes the elasticity of the third elastic piece 26 to slide, the second inclined surface on the driving piece 21 abuts against the first inclined surface on the locking piece 22 (the wedge-shaped groove 2201), the locking piece 22 is pushed to slide in the direction away from the placing cavity 802, and the locking piece 22 is separated from the corresponding locking hole 27, so that the first cam block 10 and the second cam block 11 are released, and then the radial compensation operation is performed. Furthermore, during the radial compensation, after the first cam block 10 and the second cam block 11 continue to slide axially, the locking member 22 is locked by the first cam block 10 + -
After the second cam block 11 is blocked, the worker does not press the driving piece 21 any more, the driving piece 21 is reset under the action of the third elastic piece 26, and the second inclined surface on the driving piece 21 does not abut against the first inclined surface on the locking piece 22 any more, so that when the locking piece 22 is aligned with the second locking hole 27, the locking piece 22 is inserted into the locking hole 27 under the action of the second elastic piece 25, and the positioning of the first cam block 10 and the second cam block 11 is realized again.
Example IV
The difference between this embodiment and the third embodiment is that: the structures of the driving member 21 and the locking member 22 in this embodiment are different from those of the driving member 21 and the locking member 22 in the third embodiment, and as shown in fig. 20 and 21, the locking member 22 in this embodiment has a groove 2202 formed at one end far from the placement cavity 802 for the driving member 21 to penetrate, and the rotating roller 28 is rotatably connected to the groove 2202; the driving element 21 is provided with a clamping groove 2101 on one side far away from the placing groove, the clamping groove 2101 is provided with a second inclined plane, the second inclined plane is positioned on one side wall of the clamping groove 2101 far away from the third elastic element 26, and the rotating roller 28 is opposite to the groove bottom of the clamping groove 2101.
In this embodiment, when one of the locking holes 27 on the first cam block 10 and the second cam block 11 is aligned with the locking member 22, the locking member 22 slides in the direction of the placement cavity 802 under the action of the second elastic member 25, and then the locking member 22 is drawn into the locking hole 27, thereby achieving the fixation of the first cam block 10 and the second cam block 11. When the first cam block 10 and the second cam block 11 need to be released, the worker presses the driving member 21, the driving member 21 overcomes the elastic force of the third elastic member 26 to slide, the second inclined surface on the driving member 21 (the clamping groove 2101) abuts against the rotating roller 28, the locking member 22 is pushed to slide in the direction away from the placing cavity 802, the second elastic member 25 is compressed, and the locking member 22 is separated from the locking hole 27, so that the release of the first cam block 10 and the second cam block 11 is realized. Thereafter, when the first cam block 10/second cam block 11 closes the second slide chamber 24, the worker no longer presses the driving member 21, and the driving member 21 is reset by the third elastic member 26.
Example five
The difference between this embodiment and the third embodiment is that: in this embodiment, the structures of the driving member 21 and the locking member 22 are different from those of the driving member 21 and the locking member 22 in the third embodiment, as shown in fig. 22, in this embodiment, the third elastic member 26 is not disposed in the first sliding cavity 23, the locking member 22 is a rack, the driving member 21 is a rotating rod, and a gear 29 engaged with the rack is disposed on the rotating rod.
When the locking piece 22 is aligned with the locking hole 27, the locking piece 22 slides towards the placing cavity 802 under the action of the second elastic piece 25, and the locking piece 22 is inserted into the locking hole 27, so that the first cam block 10 and the second cam block 11 are locked. When it is necessary to release the first cam block 10 and the second cam block 11, the worker rotates the rotating lever, the gear 29 on the rotating lever is engaged with the locking piece 22, so that the locking piece 22 slides in a direction away from the placement cavity 802, the second elastic piece 25 is compressed, and the locking piece 22 is disengaged from the locking hole 27, thereby realizing the release of the first cam block 10 and the second cam block 11.
The foregoing is merely an embodiment of the present application, the present application is not limited to the field of this embodiment, and the specific structures and features well known in the schemes are not described in any way herein, so that those skilled in the art will know all the prior art in the field before the application date or priority date of the present application, and will have the capability of applying the conventional experimental means before the date, and those skilled in the art may, in light of the present application, complete and implement the present scheme in combination with their own capabilities, and some typical known structures or known methods should not be an obstacle for those skilled in the art to practice the present application. It should be noted that modifications and improvements can be made by those skilled in the art without departing from the structure of the present application, and these should also be considered as the scope of the present application, which does not affect the effect of the implementation of the present application and the practical applicability of the present application. The protection scope of the present application is subject to the content of the claims, and the description of the specific embodiments and the like in the specification can be used for explaining the content of the claims.
Claims (9)
1. The utility model provides a quick replacement device of rotor engine radial seal system which characterized in that: the cylinder body is provided with a mounting channel for the mounting base to be inserted, the mounting channel is communicated with the interior of the cylinder body, cylinder covers are arranged on two side walls of the cylinder body along the length direction of the mounting channel, and sealing plugs for sealing the end parts of the mounting channel are detachably arranged on the cylinder covers; the mounting base comprises an upper base and a lower base, one end of the upper base, which is far away from the lower base, is provided with a mounting groove for clamping the radial sealing piece in, the upper base is vertically connected with the lower base in a sliding manner, a plurality of first elastic pieces are arranged between the upper base and the lower base, one end of each first elastic piece is connected with the upper base, and the other end of each first elastic piece is connected with the lower base;
The device further comprises a mounting boss, wherein the mounting boss is positioned in the mounting channel, the peripheral wall of the mounting boss is matched with the inner wall of the mounting channel, a radial chute for the upper base to slide along the radial direction of the cylinder body and a placing cavity for the lower base to place are formed in the mounting boss, a part of the end part of the mounting channel is sealed by the cylinder cover, a part of the mounting channel sealed by the cylinder cover is positioned above the radial chute, a heightening platform is arranged in the placing cavity and used for placing the lower base, a first cam block and a second cam block are connected in the placing cavity in a sliding manner, the first cam block and the second cam block are connected through a connecting piece, the connecting piece is positioned below the lower base, and a driving assembly for driving the connecting piece to translate is arranged in the placing cavity; track wire grooves are formed in the first cam block and the second cam block, a first track shaft and a second track shaft are arranged on the lower base, the first track shaft is matched with the track wire grooves in the first cam block, and the second track shaft is matched with the track wire grooves in the second cam block.
2. The rotary engine radial seal system quick change apparatus of claim 1 wherein: the driving assembly comprises a threaded rod, an axial threaded hole in threaded connection with the threaded rod is formed in the elevating platform, one end of the threaded rod is connected with the connecting piece in a rotating mode, and the other end of the threaded rod extends out of the elevating platform.
3. The rotary engine radial seal system quick change apparatus of claim 2, wherein: and a containing blind hole into which the threaded rod extends is formed in the sealing plug.
4. The rotary engine radial seal system quick change apparatus of claim 1 wherein: the driving assembly comprises a ball screw pair, the elevating platform is provided with a through hole for a screw of the ball screw pair to penetrate, the screw of the ball screw pair is rotationally connected to the elevating platform, and a nut of the ball screw pair is fixedly connected with the connecting piece; the mounting boss is provided with a positioning assembly for fixing the first cam block and the second cam block, the positioning assembly comprises a driving piece and a locking piece, a first sliding cavity for sliding the driving piece and a second sliding cavity for sliding the locking piece are formed in the mounting boss, the first sliding cavity and the second sliding cavity are vertical, the second sliding cavity is communicated with the placing cavity, a second elastic piece is arranged in the second sliding cavity, one end of the second elastic piece is connected with the inner wall of the second sliding cavity, the other end of the second elastic piece is connected with the locking piece, and the second elastic piece is in a compressed state; and the first cam block and the second cam are respectively provided with a plurality of locking holes for the locking piece to penetrate through, and the locking piece is separated from the locking holes under the action of the driving piece.
5. The rotary engine radial seal system quick change apparatus of claim 4 wherein: a third elastic piece is arranged in the first sliding cavity, one end of the third elastic piece is connected with the inner wall of the first sliding cavity, and the other end of the third elastic piece is connected with the driving piece; the locking piece is provided with a wedge-shaped groove, the wedge-shaped groove is provided with a first inclined plane, the first inclined plane faces the placing cavity, and one end, close to the locking piece, of the driving piece is provided with a second inclined plane matched with the first inclined plane.
6. The rotary engine radial seal system quick change apparatus of claim 4 wherein: a third elastic piece is arranged in the first sliding cavity, one end of the third elastic piece is propped against the inner wall of the first sliding cavity, and the other end of the third elastic piece is propped against the driving piece; the locking piece is kept away from the recess that supplies the driving piece runs through has been seted up to the one end in chamber of placing, is equipped with the commentaries on classics roller in the recess, the draw-in groove has been seted up on the driving piece one side of keeping away from the standing groove, the draw-in groove has the second inclined plane, and the second inclined plane is located the draw-in groove and keep away from on the lateral wall of third elastic component, it is relative with the tank bottom of draw-in groove to change the roller.
7. The rotary engine radial seal system quick change apparatus of claim 1 wherein: one end of the installation channel, which is close to the interior of the cylinder body, is provided with a limiting part for preventing the radial sealing piece from being flushed into the interior of the cylinder body.
8. The rotary engine radial seal system quick change apparatus of claim 1 wherein: the upper base is provided with a limiting hole, a locating pin is in interference fit in the limiting hole, the lower base is provided with a waist round hole which is vertically arranged, the diameter of the waist round hole is the same as that of the locating pin, and one end of the locating pin, which is far away from the limiting hole, is positioned in the waist round hole; the two ends of the lower base are respectively attached to the two ends of the upper base.
9. The rotary engine radial seal system quick change apparatus of claim 1 wherein: the radial sealing piece is characterized in that first magnetic blocks are embedded in two side walls in the length direction of the mounting groove, second magnetic blocks are embedded in two ends of the radial sealing piece, and magnetic poles of one ends of the second magnetic blocks, opposite to the first magnetic blocks, are identical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211333764.3A CN115539238B (en) | 2022-10-28 | 2022-10-28 | Quick replacement device for radial sealing system of rotor engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211333764.3A CN115539238B (en) | 2022-10-28 | 2022-10-28 | Quick replacement device for radial sealing system of rotor engine |
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| CN115539238A CN115539238A (en) | 2022-12-30 |
| CN115539238B true CN115539238B (en) | 2024-07-26 |
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| CN202211333764.3A Active CN115539238B (en) | 2022-10-28 | 2022-10-28 | Quick replacement device for radial sealing system of rotor engine |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1218579A (en) * | 1967-03-13 | 1971-01-06 | Vish Mashinno Elektro Technitc | Rotary-piston machines |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4012181A (en) * | 1973-02-12 | 1977-03-15 | Andre Brulfert | Engine with rotor, of new type |
| US5127377A (en) * | 1990-12-06 | 1992-07-07 | Yang Chung Chieh | Rotary machine with oval piston in triangular chamber |
| CZ304371B6 (en) * | 2012-06-21 | 2014-04-02 | Knob Engines S.R.O. | Sealing of rotary piston internal combustion engine |
| CN114941568A (en) * | 2022-03-28 | 2022-08-26 | 洛阳北方企业集团有限公司 | Novel aviation rotor engine sealing structure |
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2022
- 2022-10-28 CN CN202211333764.3A patent/CN115539238B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1218579A (en) * | 1967-03-13 | 1971-01-06 | Vish Mashinno Elektro Technitc | Rotary-piston machines |
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