CN115539238B - Quick replacement device for radial sealing system of rotor engine - Google Patents

Abstract

The present invention belongs to the technical field of engines, and specifically relates to a quick replacement device for a radial sealing system of a rotary engine, comprising a mounting base detachably mounted on a cylinder body, a mounting channel for inserting the mounting base on the cylinder body, the mounting channel being connected to the interior of the cylinder body, a cylinder cover being provided on both side walls of the cylinder body along the length direction of the mounting channel, a sealing plug for closing the end of the mounting channel being detachably mounted on the cylinder cover; the mounting base comprises an upper base and a lower base, the upper base being provided with a mounting groove for inserting a radial sealing sheet, the upper base being vertically slidably connected to the lower base, and a plurality of first elastic members being provided between the upper base and the lower base. In the present invention, the radial sealing sheet can be quickly installed and removed only on the cylinder head surface, and the disassembly and assembly process is simple to operate, thereby reducing the use cost. In addition, the present invention has a radial elastic compensation function, and after the radial sealing sheet is worn, its wear amount is compensated by radial movement, thereby extending the service life of the radial sealing sheet.

Description

A quick replacement device for radial sealing system of rotary engine

Technical Field

The invention belongs to the technical field of engines, and in particular relates to a quick replacement device for a radial sealing system of a rotary engine.

Background technique

The rotary engine has the advantages of high output power and high speed. In the traditional rotary engine, the radial sealing sheet is installed on the rotor. At present, in order to reduce the wear of the radial sealing sheet, the rolling of the needle roller replaces the sliding of the original radial sealing sheet, and then the radial sealing sheet (needle roller) installed on the rotor is transferred to the cylinder body, thereby reducing the wear of the radial sealing sheet (needle roller). However, since the radial sealing sheet directly contacts the combustion chamber in the cylinder, the working environment of the radial sealing sheet is harsh. Under the condition of insufficient lubrication, the wear of the radial sealing sheet is more serious. Therefore, the replacement frequency of the radial sealing sheet is high. However, since the radial sealing sheet is arranged in the cylinder, the rotary engine can only be completely disassembled when replacing the radial sealing sheet, which is troublesome to disassemble and assemble, resulting in low replacement efficiency of the radial sealing sheet. In addition, it is difficult for non-professional technicians to have disassembly and assembly technology, which greatly increases the cost of use and reduces the promotion of the use of rotary engines.

Summary of the invention

The present invention aims to provide a quick replacement device for a radial sealing system of a rotary engine, so as to solve the problem that radial sealing sheets of the existing rotary engine are difficult to disassemble and assemble.

In order to achieve the above-mentioned purpose, the scheme of the present invention is: a quick replacement device for the radial sealing system of a rotary engine, comprising a mounting base detachably mounted on a cylinder body, a mounting channel for inserting the mounting base being opened on the cylinder body, the mounting channel being connected to the interior of the cylinder body, cylinder covers being provided on both side walls of the cylinder body along the length direction of the mounting channel, a sealing plug for closing the end of the mounting channel being detachably mounted on the cylinder cover; the mounting base comprises an upper base and a lower base, a mounting groove for inserting a radial sealing sheet being opened on one end of the upper base away from the lower base, the upper base is vertically slidably connected to the lower base, and a plurality of first elastic members are provided between the upper base and the lower base, one end of the first elastic member is connected to the upper base, and the other end of the first elastic member is connected to the lower base.

The working principle and beneficial effects of this solution are as follows: in this solution, after the sealing plug on the cylinder head is removed, the mounting base can be taken out and the radial sealing sheet can be replaced, without completely disassembling the rotary engine, thus realizing the rapid installation and removal of the radial sealing sheet, and the disassembly and assembly process is simple to operate, which reduces the professional ability requirements for the staff, thereby reducing the use cost and improving the use promotion. In addition, the first elastic member in the mounting base can push the upper base and the radial sealing sheet to move radially toward the rotor direction after the radial sealing sheet is worn, thereby ensuring that the radial sealing sheet still forms a precise match with the rotor, realizing radial compensation of the radial sealing sheet, thereby reducing the wear of the radial sealing sheet to a certain extent, extending the service life of the radial sealing sheet, and further extending the service life of the rotary engine.

Optionally, the device also includes a mounting boss, the mounting boss is located in the mounting channel, and the outer peripheral wall of the mounting boss fits with the inner wall of the mounting channel, the mounting boss is provided with a radial slide groove for the upper base to slide radially along the cylinder body, and a placement cavity for the lower base to be placed, the cylinder head closes a partial end of the mounting channel, the portion of the mounting channel closed by the cylinder head is located above the radial slide groove, a pad is provided in the placement cavity, the pad is for the lower base to be placed, a first cam block and a second cam block are slidably connected in the placement cavity, the first cam block and the second cam block are connected by a connecting piece, the connecting piece is located below the lower base, and a driving component for driving the connecting piece to translate is provided in the placement cavity; the first cam block and the second cam block are both provided with a track line groove, the lower base is provided with a first track shaft and a second track shaft, the first track shaft cooperates with the track line groove on the first cam block, and the second track shaft cooperates with the track line groove on the second cam block.

In this solution, when the mounting base is inserted into the mounting boss, the lower base moves axially along the pad ("axial" refers to the direction parallel to the axial direction of the main shaft of the rotor engine), and the upper base slides into the radial slot. After the mounting base is in place, the first track axis and the second track axis on the lower base are respectively located at the starting points of the corresponding track line grooves. In this way, the driving assembly drives the connecting member, so that the first cam block and the second cam block slide axially, and the first track axis and the second track axis enter the corresponding track line grooves respectively, forcing the mounting base to move radially as a whole, so that part of the radial sealing sheet enters the cylinder body and forms a precise fit with the rotor, and the two adjacent chambers in the cylinder reach a sealed state, realizing the pre-tightening of the mounting base. In addition, when the radial sealing sheet is worn to a certain extent and the elasticity of the first elastic member decreases to a level that is insufficient to form a seal between the radial sealing sheet and the rotor, the driving assembly is used to continue to drive the connecting member, thereby forcing the mounting base to move further radially as a whole, until the radial sealing sheet forms a seal with the rotor again, thereby realizing radial compensation of the radial sealing sheet and extending the service life. In addition, this solution can also reduce the vibration problem of the radial sealing sheet and the generation of vibration marks through the lateral restraint effect of the upper base and the mounting boss.

Optionally, the driving assembly includes a threaded rod, the elevation platform is provided with an axial threaded hole threadedly connected to the threaded rod, one end of the threaded rod is rotatably connected to the connecting piece, and the other end of the threaded rod extends out of the elevation platform.

In this solution, the connecting piece can be driven to move axially by rotating the threaded rod, and the structure is simple.

Optionally, the sealing plug is provided with a blind hole for the threaded rod to extend into.

In this solution, the accommodating blind hole on the sealing plug allows the threaded rod to extend into, so that after the threaded rod is rotated, the sealing plug can be normally installed on the cylinder head.

Optionally, the driving assembly includes a ball screw pair, the raising platform is provided with a through hole for the screw of the ball screw pair to pass through, the screw of the ball screw pair is rotatably connected to the raising platform, and the nut of the ball screw pair is fixedly connected to the connecting member; a positioning assembly for fixing the first cam block and the second cam block is provided on the mounting boss, the positioning assembly includes a driving member and a locking member, a first sliding cavity for the driving member to slide and a second sliding cavity for the locking member to slide are provided in the mounting boss, the first sliding cavity and the second sliding cavity are perpendicular, and the second sliding cavity is connected to the placement cavity, a second elastic member is provided in the second sliding cavity, one end of the second elastic member is connected to the inner wall of the second sliding cavity, and the other end of the second elastic member is connected to the locking member, and the second elastic member is in a compressed state; a plurality of locking holes for the locking member to pass through are provided on the first cam block and the second cam, and the locking member disengages from the locking hole under the action of the driving member.

In this solution, the screw of the ball screw pair is rotated, and the nut of the ball screw pair drives the connecting member to move axially. After the first cam block and the second cam block slide into place, they are positioned by the positioning assembly to ensure the support effect on the mounting base. In addition, in this solution, the screw of the ball screw pair only rotates and does not move axially, avoiding structural modification of the sealing plug. In addition, the second elastic member is in a compressed state. When the first cam block and the second cam block slide to the preset position, the locking rod is inserted into the corresponding locking hole under the action of the second elastic member, thereby locking the first cam block and the second cam block; and when radial compensation of the radial sealing sheet is required, the driving member can be used to disengage the locking member from the corresponding locking hole.

Optionally, a third elastic member is provided in the first sliding cavity, one end of the third elastic member is connected to the inner wall of the first sliding cavity, and the other end of the third elastic member is connected to the driving member; a wedge-shaped groove is provided on the locking member, the wedge-shaped groove has a first inclined surface, the first inclined surface faces the placement cavity, and the end of the driving member close to the locking member has a second inclined surface matching the first inclined surface.

In this solution, when radial compensation is required for the radial sealing sheet, the driving member is pressed, and the second inclined surface on the driving member abuts against the first inclined surface on the locking member, pushing the locking member to slide away from the placement cavity, and the locking member disengages from the corresponding locking hole, thereby releasing the first cam block and the second cam block, and then entering the radial compensation operation. Then, the driving member is reset under the action of the third elastic member.

Optionally, a third elastic member is provided in the first sliding cavity, one end of the third elastic member is against the inner wall of the first sliding cavity, and the other end of the third elastic member is against the driving member; a groove for the driving member to pass through is provided at one end of the locking member away from the placement cavity, a roller is provided in the groove, a card slot is provided on the side of the driving member away from the placement slot, the card slot has a second inclined surface, and the second inclined surface is located on a side wall of the card slot away from the third elastic member, and the roller is opposite to the bottom of the card slot.

In this solution, when radial compensation is required for the radial sealing sheet, the driving member is pressed, and the second inclined surface on the driving member abuts against the roller, pushing the locking member to slide away from the placement cavity, and the locking member disengages from the corresponding locking hole, thereby releasing the first cam block and the second cam block, and then entering the radial compensation operation. Then, the driving member automatically resets under the action of the third elastic member.

Optionally, a limiting portion for preventing the radial sealing sheet from rushing into the cylinder body is provided at one end of the installation channel close to the interior of the cylinder body.

In this solution, the limiting portion can prevent the radial sealing sheet from rushing into the interior of the cylinder body, and can also limit the upper base to restrict the maximum radial movement stroke of the upper base.

Optionally, a limiting hole is provided on the upper base, and a positioning pin is interference fit in the limiting hole. A vertically arranged waist-shaped hole is provided on the lower base, and the diameter of the waist-shaped hole is the same as the diameter of the positioning pin. One end of the positioning pin away from the limiting hole is located in the waist-shaped hole; the two ends of the lower base are respectively attached to the two ends of the upper base.

In this solution, the positioning pin slides radially along the oval hole, and the two ends of the lower base are respectively attached to the two ends of the upper base, ensuring that relative sliding only occurs in the radial direction between the upper base and the lower base.

Optionally, a first magnetic block is embedded in both side walls of the installation groove in the length direction, and a second magnetic block is embedded in both ends of the radial sealing sheet, and the second magnetic block has the same magnetic pole as the end opposite to the first magnetic block.

In this solution, the magnetic poles of the opposite ends of the first magnetic block and the second magnetic block are the same, and the friction force on the end surface of the radial sealing plate is reduced by using the principle of like charges repelling each other, thereby extending the service life of the radial sealing plate.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic structural diagram of a quick replacement device for a rotary engine radial sealing system in a first embodiment of the present invention when it is installed on a rotary engine;

FIG2 is a schematic diagram of the structure of FIG1 with the cylinder cover on one side wall of the cylinder body hidden;

FIG3 is a schematic structural diagram of a mounting base installed on a cylinder body in Embodiment 1 of the present invention;

FIG4 is a front view of FIG3 ;

FIG5 is an enlarged schematic diagram of A in FIG4 ;

FIG6 is a schematic diagram of the structure of the sealing plug in the first embodiment of the present invention;

FIG7 is a schematic structural diagram of a mounting base in Embodiment 1 of the present invention;

FIG8 is a schematic structural diagram of an upper base in Embodiment 1 of the present invention;

9 is a schematic structural diagram of the mounting boss and the mounting base when they are mounted on the cylinder body in the second embodiment of the present invention;

FIG10 is an enlarged schematic diagram of B in FIG9 ;

FIG11 is a schematic diagram of the structure of the mounting boss in the second embodiment of the present invention;

FIG12 is an assembly diagram of the lower base, the first cam block and the second cam block in the second embodiment of the present invention;

FIG13 is a rear view of FIG11 ;

FIG14 is a schematic diagram of the structure of the sealing plug in the second embodiment of the present invention;

FIG15 is a schematic diagram of the structure of the upper base in Embodiment 2 of the present invention;

FIG16 is a schematic diagram of the structure of the mounting boss in the third embodiment of the present invention;

FIG17 is a rear view of FIG16;

FIG18 is a front view of FIG16;

Fig. 19 is a partial cross-sectional view taken along the A-A direction in Fig. 18;

FIG20 is a partial cross-sectional view of the mounting boss in the fourth embodiment of the present invention along the A-A direction in FIG18 ;

Fig. 21 is a partial cross-sectional view taken along the B-B direction in Fig. 21;

Figure 22 is a partial cross-sectional view of the mounting boss in the fifth embodiment of the present invention along the A-A direction in Figure 18.

Detailed ways

The following is further described in detail through specific implementation methods:

The symbols in the drawings of the specification include: cylinder body 1, installation channel 101, limiting portion 110, installation base 2, upper base 210, installation groove 211, limiting hole 212, positioning pin 213, accommodating groove 214, first limiting groove 215, second limiting groove 216, lower base 220, waist hole 221, first elastic member 230, radial sealing sheet 3, rotor 4, cylinder head 5, sealing plug 6, threaded column 610, accommodating blind hole 611, plug plate 620, annular sealing groove 621, hexagonal groove 622, main shaft 7, installation boss 8, radial slide groove 8 01, placement cavity 802, raising platform 9, axial threaded hole 901, first cam block 10, second cam block 11, first slide groove 12, second slide groove 13, connecting piece 14, threaded rod 15, limit plate 151, track line groove 16, first track axis 17, second track axis 18, lead screw 19, nut 20, driving piece 21, slot 2101, locking piece 22, wedge groove 2201, groove 2202, first slide cavity 23, second slide cavity 24, second elastic piece 25, third elastic piece 26, locking hole 27, roller 28, gear 29.

Embodiment 1

This embodiment is basically as shown in Figures 1, 2, 3 and 4: a quick replacement device for a radial sealing system of a rotary engine, comprising a mounting base 2 detachably mounted on a cylinder body 1, a mounting channel 101 for inserting the mounting base 2 is provided on the cylinder body 1, and the mounting channel 101 is communicated with the interior of the cylinder body 1, so that part of the radial sealing sheet 3 on the mounting base 2 extends into the interior of the cylinder body 1 and abuts against the rotor 4. Cylinder heads 5 are provided on both side walls of the cylinder body 1 along the length direction of the mounting channel 101, and a sealing plug 6 for closing the end of the mounting channel 101 is detachably mounted on the cylinder head 5. In this embodiment, the sealing plug 6 is threadedly connected to the cylinder head 5. As shown in Figure 6, the sealing plug 6 includes a threaded column 610 and a plug plate 620. An annular sealing groove 621 is provided on the side wall of the plug plate 620 facing the threaded column 610, and an annular sealing ring is installed in the annular sealing groove 621 to improve the sealing performance; a hexagonal groove 622 is provided on the side wall of the plug plate 620 away from the threaded column 610 to facilitate the application of force to rotate the sealing plug 6.

As shown in Figure 7, the mounting base 2 includes an upper base 210 and a lower base 220. The upper base 210 is provided with a mounting groove 211 at one end away from the lower base 220 for the radial sealing sheet 3 to be inserted into. The two side walls of the mounting groove 211 in the length direction are embedded with a first magnetic block, and the two ends of the radial sealing sheet 3 are embedded with a second magnetic block. The second magnetic block has the same magnetic pole as the end opposite to the first magnetic block, and the friction force on the end face of the radial sealing sheet 3 is reduced by utilizing the principle of like charges repelling each other. The upper base 210 is vertically slidably connected to the lower base 220. Specifically, as shown in Figures 7 and 8, a limiting hole 212 is provided on the upper base 210, and a positioning pin 213 is interference fit in the limiting hole 212. A vertically arranged waist-shaped hole 221 is provided on the lower base 220, and the diameter of the waist-shaped hole 221 is the same as the diameter of the positioning pin 213. The end of the positioning pin 213 away from the limiting hole 212 is located in the waist-shaped hole 221; the two ends of the lower base 220 are respectively attached to the two ends of the upper base 210, and the bottom end of the upper base 210 is provided with a receiving groove 214 for the lower base 220 to slide into.

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 member 230 is welded to the upper base 210, and the other end of the first elastic member 230 is welded to the lower base 220. In this embodiment, the distance between two adjacent first elastic members 230 is 50 mm, and the first elastic member 230 is a spring.

As shown in Figure 5, one end of the installation channel 101 close to the interior of the cylinder body 1 (the end of the installation channel 101 close to the rotor 4) is provided with a limiting portion 110 for preventing the radial sealing sheet 3 from rushing into the interior of the cylinder body 1. The limiting portion 110 is integrally formed with the cylinder body 1. The limiting portion 110 can wrap a portion of the radial sealing sheet 3 in the circumferential direction of the radial sealing sheet 3, thereby preventing the radial sealing sheet 3 from completely rushing into the interior of the cylinder body 1, and can also prevent the end of the upper base 210 close to the rotor 4 from extending into the interior of the cylinder body 1 and colliding with the rotor 4, thereby destroying the structure of the rotor 4.

When installing the radial sealing sheet 3, install the radial sealing sheet 3 into the mounting groove 211, and then apply force to shorten the distance between the upper base 210 and the lower base 220, that is, the first elastic member 230 is compressed, and the overall height of the mounting base 2 becomes smaller. Subsequently, the mounting base 2 with a reduced height is inserted into the mounting channel 101. After the mounting base 2 is in place, under the action of the first elastic member 230, the radial sealing sheet 3 forms a seal with the rotor 4 inside the cylinder body 1. Finally, the sealing plug 6 is installed on the cylinder head 5 and tightened to seal the mounting channel 101 and prevent the mounting base 2 from axial movement ("axial" refers to the direction parallel to the axial direction of the rotor 4 engine main shaft 7). During the operation of the rotor 4 engine, the rotor 4 rotates, and the friction between the radial sealing sheet 3 in the mounting groove 211 and the rotor 4 is rolling friction. Moreover, when the radial sealing sheet 3 is worn, under the action of the first elastic member 230, the radial sealing sheet 3 can move in the radial direction of the rotor 4 toward the rotor 4, so that the radial sealing sheet 3 can continue to form a seal with the rotor 4, thereby achieving radial compensation for the radial sealing sheet 3 and extending the service life of the radial sealing sheet 3.

When the radial sealing sheet 3 needs to be replaced, the worker rotates the sealing plug 6 on the cylinder head 5, removes the sealing plug 6, exposes the mounting base 2, and then pulls out the mounting base 2 (if necessary, the sealing plugs 6 on both sides of the cylinder head 5 can be removed to push out the mounting base 2), takes out the worn radial sealing sheet 3, and replaces it with a new radial sealing sheet 3. Then, according to the above operation method, reinsert the mounting base 2 into the mounting channel 101, and reinstall the sealing plug 6 on the cylinder head 5.

In summary, in this embodiment, the radial sealing sheet 3 can be quickly installed and disassembled only on the surface of the cylinder head 5, and the disassembly process is simple to operate, which reduces the use cost and improves the use promotion of the rotor 4 engine. In addition, in this embodiment, after the radial sealing sheet 3 is worn, the first elastic member 230 pushes the upper base 210 and the radial sealing sheet 3 to move radially toward the rotor 4, thereby ensuring that the radial sealing sheet 3 still forms a seal with the rotor 4, achieving radial compensation of the radial sealing sheet 3, and extending the service life of the radial sealing sheet 3. In addition, in this embodiment, the principle of like repels like is also used to reduce the friction force on the end face of the radial sealing sheet 3, and the overall coordination greatly extends the service life of the rotor 4 engine.

Embodiment 2

The difference between this embodiment and the first embodiment is that: as shown in FIG9, FIG10 and FIG11, a quick replacement device of a radial sealing system of a rotary engine in this embodiment also 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 matched with the inner wall of most of the mounting channel 101, and the mounting boss 8 is provided with a radial slide groove 801 for the upper base 210 to slide along the radial direction of the cylinder body 1 ("the radial direction of the cylinder body 1" refers to the direction parallel to the radial direction of the rotary engine main shaft 7) and a placement cavity 802 for the lower base 220 to be placed. 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 slide groove 801.

A raising platform 9 is provided in the placement cavity 802, and the raising platform 9 is used to place the lower base 220. As shown in Figures 11, 12 and 13, a first cam block 10 and a second cam block 11 are axially slidably connected in the placement cavity 802. Specifically, a first sliding groove 12 for the first cam block 10 to slide and a second sliding groove 13 for the second cam block 11 to slide are provided in the placement cavity 802. As shown in Figures 12 and 13, the first cam block 10 and the second cam block 11 are connected by a connecting piece 14. The connecting piece 14 can be welded to the first cam block 10 and the second cam block 11, or can be movably connected to the first cam block 10 and the second cam block 11. In this embodiment, the first cam block 10 and the second cam block 11 are both provided with an axle pin hole for the connecting piece 14 to pass through, so that when the connecting piece 14 moves, it can drive the first cam block 10 and the second cam block 11 to slide simultaneously; the connecting piece 14 is located below the lower base 220, and a driving component for driving the connecting piece 14 to translate is provided in the placement cavity 802. In this embodiment, the driving component includes a threaded rod 15, and the raising platform 9 is provided with an axial threaded hole 901 threadedly connected to the threaded rod 15. One end of the threaded rod 15 is rotatably connected to the connecting piece 14, and the other end of the threaded rod 15 extends out of the raising platform 9. As shown in FIG13 , in this embodiment, a through hole is provided in the middle of the connecting member 14 for the threaded rod 15 to pass through, and two stopper plates 151 are provided at one end of the threaded rod 15 close to the connecting member 14, and the connecting member 14 is located between the two stopper plates 151. In addition, in order to provide more moving space for the threaded rod 15, as shown in FIG14 , a blind hole 611 is provided on the sealing plug 6 for the threaded rod 15 to extend into.

As shown in FIG12 , the first cam block 10 and the second cam block 11 are both provided with a track line groove 16, and the lower base 220 is integrally formed with a first track axis 17 and a second track axis 18, the first track axis 17 cooperates with the track line groove 16 on the first cam block 10, and the second track axis 18 cooperates with the track line groove 16 on the second cam block 11. In this embodiment, the first track axis 17 and the second track axis 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 is ensured not to rotate during the radial movement of the mounting base 2. As shown in FIG15 , the side wall of the lower base 220 is provided with a first limiting groove 215 for radial movement of the first track axis 17 and a second limiting groove 216 for radial movement of the second track axis 18.

In this embodiment, when installing the radial sealing sheet 3, the radial sealing sheet 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. During this process, the lower base 220 moves axially along the raising platform 9, and the upper base 210 slides into the radial slide groove 801. After the installation base 2 is in place, the first trajectory axis 17 on the lower base 220 is located at the starting point of the trajectory line groove 16 of the first cam block 10, and the second trajectory axis 18 on the lower base 220 is located at the starting point of the trajectory line groove 16 of the second cam block 11. Next, the worker rotates the threaded rod 15 clockwise, and the threaded rod 15 moves out of the placement cavity 802 while rotating clockwise, thereby driving the connecting member 14 to move toward the direction close to the pad 9, and then driving the first cam block 10 and the second cam block 11 to slide axially, so that the first track shaft 17 moves upward along the track axis groove on the first cam block 10, and the second track shaft 18 moves upward along the track line groove 16 on the second cam block 11, thereby forcing the mounting base 2 to move radially toward the rotor 4, that is, forcing the mounting base 2 to approach the rotor 4, until the end of the radial sealing sheet 3 close to the rotor 4 enters the cylinder body 1 and forms a seal with the rotor 4, at which time the first elastic member 230 is in a compressed state and has a radial elastic restoring force. Then, the worker stops rotating the threaded rod 15, and the threaded rod 15 is stationary under the limiting effect 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 will not move in the radial direction, and realizing the pre-tightening of the mounting base 2. Finally, the worker installs the sealing plug 6 on the cylinder head 5. During this process, the portion of the threaded rod 15 extending out of the mounting boss 8 can extend into the receiving blind hole 611 to ensure that the sealing plug 6 can normally seal the cylinder head 5. In the above process, since the cylinder head 5 closes a portion of the end of the mounting channel 101, the mounting base 2 will not move in the axial direction.

During use, when the radial sealing sheet 3 is worn, the upper base 210 slides toward the rotor 4 under the action of the first elastic member 230, thereby compensating for the wear of the radial sealing sheet 3, so that the radial sealing sheet 3 can still form a precise fit with the rotor 4 to play a sealing role. When the wear of the radial sealing sheet 3 cannot be compensated by the first elastic member 230 (that is, during the rotation of the rotor 4, the radial sealing sheet 3 cannot form a seal with the rotor 4, and the first elastic member 230 is not compressed), the worker removes the sealing plug 6 on the cylinder head 5 (note that the "sealing plug 6" here is the sealing plug 6 on the cylinder head 5 away from the connecting member 14) to expose the mounting boss 8. , the worker rotates the threaded rod 15 clockwise, and the threaded rod 15 drives the connecting piece 14 to move toward the direction close to the pad 9, thereby driving the first cam block 10 and the second cam block 11 to slide axially, so that the first track shaft 17 continues to move upward along the track axis groove on the first cam block 10, and the second track shaft 18 continues to move upward along the track line groove 16 on the second cam block 11, thereby forcing the mounting base 2 to move radially toward the rotor 4, that is, forcing the mounting base 2 to approach the rotor 4, until the end of the radial sealing piece 3 close to the rotor 4 forms a seal with the rotor 4 again, at this time, the first elastic piece 230 is in a compressed state again, and has a radial elastic restoring force. In this way, the radial compensation of the radial sealing piece 3 can be achieved again, the service life of the radial sealing piece 3 can be extended, and the replacement frequency of the radial sealing piece 3 can be reduced.

When the radial sealing sheet 3 needs to be replaced, the worker rotates the sealing plug 6 on the cylinder head 5, removes the sealing plug 6, and exposes the mounting boss 8. The worker rotates the threaded rod 15 counterclockwise, and the threaded rod 15 drives the connecting member 14, the first cam block 10, and the second cam block 11 to move away from the raised platform 9, and the first track shaft 17 moves downward in the track line groove 16 of the first cam block 10, and the second track shaft 18 moves downward in the track line groove 16 of the second cam block 11, so that the mounting base 2 moves radially away from the rotor 4 until the lower base 220 contacts the raised platform 9 again, at which time the upper base 210 and the radial sealing sheet 3 are no longer blocked by the cylinder head 5, and the worker can stop rotating the threaded rod 15 counterclockwise, and take out the mounting base 2, replace the new radial sealing sheet 3, and reinstall the mounting base 2 in place according to the above-mentioned installation method. In addition, in this embodiment, the mounting boss 8 can also be taken out of the mounting channel 101 and replaced with a new mounting boss 8. After the radial sealing sheet 3 is replaced, the sealing plug 6 is reinstalled on the cylinder head 5 .

In summary, compared with the first embodiment, the present embodiment can realize manual radial compensation of the radial sealing sheet 3 , thereby further extending the service life of the radial sealing sheet 3 .

Embodiment 3

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. As shown in Figures 16 and 17, the driving assembly in this embodiment includes a ball screw pair, and the raised platform 9 is provided with a through hole for the screw 19 of the ball screw pair to pass through, the screw 19 of the ball screw pair is rotatably connected to the raised platform 9, and the nut 20 of the ball screw pair is welded to 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 have their own positioning assemblies, and the positioning assembly of the first cam block 10 is taken as an example for description in this embodiment). As shown in Figures 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 perpendicular, and the second sliding cavity 24 is connected to the placement 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 to the inner wall of the second sliding cavity 24, and the other end of the second elastic member 25 is connected to the locking member 22. 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 is against the first cam block 10/the second cam block 11). A third elastic member 26 is disposed in the first sliding cavity 23 . One end of the third elastic member 26 is welded to the inner wall of the first sliding cavity 23 , and the other end of the third elastic member 26 is welded to the driving member 21 .

The first cam block 10 and the second cam are both provided with a plurality of locking holes 27 for the locking member 22 to penetrate. The locking member 22 is disengaged from the locking hole 27 under the action of the driving member 21. Specifically, the locking member 22 is provided with a wedge-shaped groove 2201, which has a first inclined surface, which faces the placement cavity 802. The end of the driving member 21 close to the locking member 22 has a second inclined surface that matches the first inclined surface. In this embodiment, there are two locking holes 27, and the second elastic member 25 and the third elastic member 26 are both springs.

In this embodiment, when the mounting base 2 is pre-tightened, the worker rotates the lead screw 19 clockwise, and the nut 20 drives the connecting member 14 to move toward the bolster 9, and the first cam block 10 and the second cam block 11 slide axially, and the first track shaft 17 moves upward in the track line groove 16 on the first cam block 10, and the second track shaft 18 moves upward in the track line groove 16 on the second cam block 11, forcing the mounting base 2 to move radially toward the rotor 4. When the first cam block 10 and the second cam block 11 slide to a certain position, a locking hole 27 on the first cam block 10 and the second cam block 11 is opposite to the locking member 22, so that the locking member 22 slides toward the placement cavity 802 under the action of the second elastic member 25, and the locking member 22 is inserted into the locking hole 27 to achieve the positioning of the first cam block 10 and the second cam block 11, so that the lower base 220 is fixed in the radial direction to achieve pre-tightening.

When manual radial compensation is required for the radial sealing sheet 3, the worker presses the driving member 21, and the driving member 21 overcomes the elastic force of the third elastic member 26 and slides. The second inclined surface on the driving member 21 abuts against the first inclined surface on the locking member 22 (wedge-shaped groove 2201), pushing the locking member 22 to slide away from the placement cavity 802, and the locking member 22 disengages from the corresponding locking hole 27, thereby releasing the first cam block 10 and the second cam block 11, and then entering the radial compensation operation. Moreover, during the radial compensation process, after the first cam block 10 and the second cam block 11 continue to slide axially, the locking member 22 is moved by the first cam block 10/

After the second cam block 11 is blocked and the worker no longer presses the driving member 21, the driving member 21 is reset under the action of the third elastic member 26, and the second inclined surface on the driving member 21 no longer abuts against the first inclined surface on the locking member 22, so that when the locking member 22 is opposite to the second locking hole 27, the locking member 22 is inserted into the locking hole 27 under the action of the second elastic member 25, thereby realizing the positioning of the first cam block 10 and the second cam block 11 again.

Embodiment 4

The difference between this embodiment and the third embodiment lies in that the structures of the driving member 21 and the locking member 22 in this embodiment are different from those in the third embodiment. As shown in Figures 20 and 21, the locking member 22 in this embodiment has a groove 2202 for the driving member 21 to pass through at one end away from the placement cavity 802, and a roller 28 is rotatably connected in the groove 2202; a slot 2101 is provided on the side of the driving member 21 away from the placement groove, and the slot 2101 has a second inclined surface, and the second inclined surface is located on a side wall of the slot 2101 away from the third elastic member 26, and the roller 28 is opposite to the bottom of the slot 2101.

In this embodiment, when a locking hole 27 on the first cam block 10 and the second cam block 11 is directly opposite to the locking member 22, the locking member 22 slides toward 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 to fix 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, and the driving member 21 overcomes the elastic force of the third elastic member 26 and slides, and the second inclined surface on the driving member 21 (slot 2101) abuts against the roller 28, pushing the locking member 22 to slide away from the placement cavity 802, the second elastic member 25 is compressed, and the locking member 22 is separated from the locking hole 27, thereby releasing the first cam block 10 and the second cam block 11. Thereafter, when the first cam block 10/the second cam block 11 blocks the second sliding cavity 24, the worker no longer presses the driving member 21, and the driving member 21 is reset under the action of the third elastic member 26.

Embodiment 5

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 in the third embodiment. As shown in Figure 22, in this embodiment, the third elastic member 26 is not provided in the first sliding cavity 23, the locking member 22 is a rack, and the driving member 21 is a rotating rod, on which a gear 29 meshing with the rack is provided.

When the locking member 22 is directly opposite to the locking hole 27, the locking member 22 slides toward the placement cavity 802 under the action of the second elastic member 25, and the locking member 22 is inserted into the locking hole 27, thereby locking 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 rotates the rotating rod, and the gear 29 on the rotating rod meshes with the locking member 22, so that the locking member 22 slides away from the placement cavity 802, the second elastic member 25 is compressed, and the locking member 22 is disengaged from the locking hole 27, thereby releasing the first cam block 10 and the second cam block 11.

The above are only embodiments of the present invention. The invention is not limited to the fields involved in this implementation case. The common sense such as the known specific structures and characteristics in the scheme is not described in detail here. The ordinary technicians in the relevant field know all the common technical knowledge in the technical field to which the invention belongs before the application date or priority date, can obtain all the existing technologies in the field, and have the ability to apply the conventional experimental means before that date. The ordinary technicians in the relevant field can improve and implement this scheme in combination with their own abilities under the enlightenment given by this application. Some typical known structures or known methods should not become obstacles for ordinary technicians in the relevant field to implement this application. It should be pointed out that for those skilled in the art, without departing from the structure of the present invention, several deformations and improvements can be made, which should also be regarded as the protection scope of the present invention, which will not affect the effect of the implementation of the present invention and the practicality of the present invention. The protection scope required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to explain 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.