CN115539238A - A quick replacement device for the radial sealing system of a rotary engine - Google Patents

Abstract

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, which comprises a mounting base detachably mounted on a cylinder body, wherein a mounting channel for inserting the mounting base is formed in the cylinder body, the mounting channel is communicated with the inside of the cylinder body, two side walls of the cylinder body in the length direction of the mounting channel are respectively provided with a cylinder cover, and a sealing plug for sealing the end part of the mounting channel is detachably mounted on the cylinder cover; the mounting base includes upper base and lower base, and the mounting groove that supplies radial gasket card to go into is seted up to the upper base, upper base and the vertical sliding connection of lower base, and be equipped with a plurality of elastic components between upper base and the lower base. According to the invention, the radial sealing sheet can be quickly mounted and dismounted only on the cylinder cover surface, the dismounting process is simple to operate, and the use cost is reduced. In addition, the radial sealing piece has a radial elastic compensation function, the abrasion loss of the radial sealing piece is compensated through radial movement after the radial sealing piece is abraded, and the service life of the radial sealing piece is prolonged.

Description

A quick replacement device for the radial sealing system of a 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 rotor engine.

Background technique

The rotary engine has the advantages of large output power and high speed. In the traditional rotary engine, the radial sealing sheet is installed on the rotor. In order to reduce the wear of the radial sealing sheet at this stage, the rolling of the needle roller is used to replace the sliding of the original radial sealing sheet, and then the radial sealing sheet installed on the rotor is replaced. The sheet (needle roller) is transferred to the cylinder body, thereby reducing the wear of the radial sealing sheet (needle roller). However, because the radial seal directly contacts the combustion chamber in the cylinder, the working environment of the radial seal is harsh, and under the condition of insufficient lubrication, the wear of the radial seal is relatively serious. Therefore, the replacement frequency of the radial seal is relatively high. high. However, since the radial sealing sheet is arranged in the cylinder, the rotor engine can only be completely disassembled when replacing the radial sealing sheet, which has the problem of troublesome disassembly and assembly, resulting in low replacement efficiency of the radial sealing sheet. Moreover, it is difficult for non-professional technicians to have disassembly and assembly technology, which greatly increases the cost of use and reduces the use of the rotary engine.

Contents of the invention

The invention aims to provide a quick replacement device for a radial sealing system of a rotor engine to solve the problem that the radial sealing sheet of the existing rotor engine is not easy to disassemble.

In order to achieve the above object, the solution of the present invention is: a quick replacement device for the radial sealing system of a rotary engine, which includes a mounting base detachably mounted on the cylinder body, and a mounting hole for the mounting base to be inserted is provided on the cylinder body. channel, the installation channel communicates with the interior of the cylinder body, and the cylinder body is provided with a cylinder cover on both side walls along the length direction of the installation channel, and a sealing plug for closing the end of the installation channel is detachably installed on the cylinder cover; the installation The base includes an upper base and a lower base. The end of the upper base away from the lower base is provided with a mounting groove for the radial sealing sheet to snap in. The upper base and the lower base are vertically slidably connected, and the upper base is connected to the lower base. Several first elastic pieces are arranged between the bases, one end of the first elastic piece is connected with the upper base, and the other end of the first elastic piece is connected with the lower base.

The working principle and beneficial effects of this scheme are: in this scheme, after the sealing plug on the cylinder head is disassembled, the installation base can be taken out and the radial sealing sheet can be replaced without completely dismantling the rotor engine, and the radial sealing sheet is realized. Quick installation and disassembly, and the disassembly process is easy to operate, which reduces the professional ability requirements of the staff, thereby reducing the cost of use and improving the promotion of use. Moreover, the first elastic member in the installation base can push the upper base and the radial sealing sheet to move radially toward the rotor after the radial sealing sheet is worn, thereby ensuring that the radial sealing sheet still forms a precise fit with the rotor , to realize the radial compensation of the radial sealing sheet, thereby reducing the wear of the radial sealing sheet to a certain extent, prolonging the service life of the radial sealing sheet, and thus prolonging the service life of the rotary engine.

Optionally, the device further includes an installation boss, the installation boss is located in the installation channel, and the outer peripheral wall of the installation boss matches the inner wall of the installation channel, and the installation boss is provided with a A radial chute that slides radially along the cylinder body and a placement cavity for placing the lower base, the cylinder cover closes part of the end of the installation channel, and the part of the installation channel that is closed by the cylinder cover is located above the radial chute , the placement cavity is provided with a raised platform, and the raised platform is used for placing the lower base, and a first cam block and a second cam block are slidably connected in the placement cavity, and the first cam block and the second cam block are connected through a connecting piece. The part is located under the lower base, and a driving assembly for driving the connecting part to move in translation is provided in the cavity; track grooves are provided on the first cam block and the second cam block, and a second cam block is provided on the lower base. A track axis and a second track axis, the first track axis cooperates with the track line groove on the first cam block, and the second track axis cooperates with the track line groove on the second cam block.

In this solution, when the installation base is inserted into the installation boss, the lower base moves axially along the raised platform ("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 slide In the groove, after the installation base is in place, the first trajectory axis and the second trajectory axis on the lower base are respectively located at the starting points of the corresponding trajectory line grooves. In this way, the connecting piece is driven by the driving component, so that the first cam block and the second cam block slide axially, and the first track axis and the second track axis respectively enter into the corresponding track line grooves, forcing the installation base as a whole to move radially Move, so that part of the radial sealing plate enters the cylinder and forms a precise fit with the rotor, and the two adjacent cavities in the cylinder reach a sealed state, realizing the pre-tightening of the installation base. Moreover, when the radial sealing sheet is worn to a certain extent and the elasticity of the first elastic member is not enough to make the radial sealing sheet and the rotor form a seal, the driving assembly is used to continue to drive the connecting member, thereby forcing the entire installation base to further radially Move until the radial sealing sheet forms a seal with the rotor again, realizing radial compensation of the radial sealing sheet and prolonging the service life. In addition, this solution can also alleviate the vibration problem of the radial sealing plate and the generation of vibration marks through the lateral restraint effect of the upper base and the installation boss.

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

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

Optionally, a blind hole for receiving the threaded rod is opened on the sealing plug.

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

Optionally, the driving assembly includes a ball screw pair, and the raised platform is provided with a through hole for the screw of the ball screw pair to pass through, and the screw of the ball screw pair is rotatably connected to the raised platform, and the ball screw The nut of the pair is fixedly connected with the connecting piece; the 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 part and a locking part, and there are holes in the mounting boss for The first sliding chamber for the sliding of the driving part and the second sliding chamber for the sliding of the locking part, the first sliding chamber and the second sliding chamber are vertical, and the second sliding chamber communicates with the placement chamber, the second sliding chamber is provided with a second elastic part, one end of the second elastic part is connected with the inner wall of the second sliding chamber, the other end of the second elastic part is connected with the locking part, and the second elastic part is in a compressed state; the first cam block and the second cam are provided with There are several locking holes through which the locking piece penetrates, and the locking piece breaks away from the locking hole under the action of the driving piece.

In this scheme, when the screw rod of the ball screw pair is rotated, the nut of the ball screw pair drives the connecting piece to move axially. After the first cam block and the second cam block slide into place, the positioning component is used for positioning to ensure that the installation base support effect. Moreover, in this solution, the lead screw of the ball screw pair only rotates but does not move axially, thus 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 realizing the locking of the first cam block. and the locking of the second cam block; and when it is necessary to perform radial compensation on the radial sealing sheet, it is enough to use the driving member to make the locking member disengage from the corresponding locking hole.

Optionally, a third elastic member is provided in the first sliding chamber, one end of the third elastic member is connected with the inner wall of the first sliding chamber, and the other end of the third elastic member is connected with the driving member; A wedge-shaped groove is opened, and the wedge-shaped groove has a first slope facing the placement cavity, and an end of the driving part close to the locking part has a second slope matched with the first slope.

In this solution, when it is necessary to perform radial compensation for the radial sealing piece, press the driving part, the second slope on the driving part will be offset against the first slope on the locking part, and the locking part will be pushed to slide away from the placement cavity, and the locking part will Disengage from the corresponding locking hole, so as to realize the release of the first cam block and the second cam block, and then enter into the radial compensation operation. Then, the driving member returns under the action of the third elastic member.

Optionally, a third elastic member is provided in the first sliding chamber, one end of the third elastic member abuts against the inner wall of the first sliding chamber, and the other end of the third elastic member abuts against the driving member; the locking member is away from One end of the placement cavity is provided with a groove for the driving member to pass through, and a rotating roller is arranged in the groove, and a locking groove is opened on the side of the driving member away from the placement groove, and the locking groove has a second slope, and The second slope is located on the side wall of the slot away from the third elastic member, and the rotating roller is opposite to the bottom of the slot.

In this solution, when it is necessary to perform radial compensation on the radial sealing sheet, press the driving part, the second slope on the driving part will be against the roller, push the locking part to slide away from the placement cavity, and the locking part will break away from the corresponding locking hole , so as to realize the release of the first cam block and the second cam block, and then enter into the radial compensation operation. Then, the driving member automatically resets under the action of the third elastic member.

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

In this solution, the limiting part can prevent the radial sealing sheet from rushing into the cylinder body, and can also limit the upper base to limit 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-fitted in the limiting hole, and a vertical round hole is opened on the lower base, and the diameter of the round hole is the same as that of the positioning pin. The diameters are the same, and the end of the positioning pin away from the limit hole is located in the waist 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 waist hole, and the two ends of the lower base are respectively attached to the two ends of the upper base, so as to ensure that the upper base and the lower base only slide relative to each other in the radial direction .

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

In this solution, the magnetic poles at opposite ends of the first magnetic block and the second magnetic block are the same, and the same-sex repulsion principle is used to reduce the friction force on the end surface of the radial sealing sheet, thereby prolonging the service life of the radial sealing sheet.

Description of drawings

Fig. 1 is a structural schematic diagram of a quick replacement device for a radial sealing system of a rotary engine installed on a rotary engine in Embodiment 1 of the present invention;

Fig. 2 is a structural schematic diagram after the cylinder head on the side wall of the cylinder block in Fig. 1 is hidden;

Fig. 3 is a schematic structural view of the mounting base installed on the cylinder body in Embodiment 1 of the present invention;

Fig. 4 is the front view of Fig. 3;

Fig. 5 is the enlarged schematic view of A in Fig. 4;

6 is a schematic structural view of the sealing plug in Embodiment 1 of the present invention;

Fig. 7 is a schematic structural diagram of the installation base in Embodiment 1 of the present invention;

Fig. 8 is a schematic structural view of the upper base in Embodiment 1 of the present invention;

Fig. 9 is a schematic structural view of the installation boss and the installation base installed on the cylinder body in the second embodiment of the present invention;

Figure 10 is an enlarged schematic view of B in Figure 9;

Fig. 11 is a schematic structural diagram of the mounting boss in Embodiment 2 of the present invention;

Fig. 12 is an assembly drawing of the lower base, the first cam block and the second cam block in the second embodiment of the present invention;

Figure 13 is a rear view of Figure 11;

Fig. 14 is a schematic structural diagram of the sealing plug in Embodiment 2 of the present invention;

Fig. 15 is a schematic structural view of the upper base in Embodiment 2 of the present invention;

Fig. 16 is a schematic structural view of the installation boss in the third embodiment of the present invention;

Figure 17 is a rear view of Figure 16;

Figure 18 is a front view of Figure 16;

Fig. 19 is a partial sectional view of A-A direction in Fig. 18;

Fig. 20 is a partial cross-sectional view of the installation boss according to the direction A-A in Fig. 18 in Embodiment 4 of the present invention;

Fig. 21 is a partial sectional view of B-B direction in Fig. 21;

Fig. 22 is a partial cross-sectional view of the installation boss according to the direction A-A in Fig. 18 in the fifth embodiment of the present invention.

detailed description

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

The marks in the drawings of the specification include: cylinder body 1, installation channel 101, limit part 110, installation base 2, upper base 210, installation groove 211, limit hole 212, positioning pin 213, receiving 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, mounting boss 8, radial slide groove 801, placement cavity 802, pad 9, axial threaded hole 901, first cam block 10 , the second cam block 11, the first chute 12, the second chute 13, the connector 14, the threaded rod 15, the limit piece 151, the track groove 16, the first track axis 17, the second track axis 18, the wire Bar 19, nut 20, driving member 21, card slot 2101, locking member 22, wedge-shaped groove 2201, groove 2202, first sliding chamber 23, second sliding chamber 24, second elastic member 25, third elastic member 26, Lock hole 27, rotating roller 28, gear 29.

Embodiment one

This embodiment is basically shown in Figure 1, Figure 2, Figure 3 and Figure 4: a quick replacement device for the radial sealing system of a rotary engine, including a mounting base 2 detachably mounted on the cylinder body 1, and a cylinder body 1 There is an installation channel 101 for inserting the installation base 2, and the installation channel 101 communicates with the inside of the cylinder body 1, so that the part of the radial sealing sheet 3 on the installation base 2 extends into the interior of the cylinder body 1 and is pressed against the rotor 4 . Cylinder body 1 is provided with cylinder head 5 on both side walls along the length direction of installation passage 101, and cylinder head 5 is detachably installed with the sealing plug 6 that is used to seal the end of installation passage 101, and in the present embodiment, sealing plug 6 threads Connected to cylinder head 5. As shown in Figure 6, the sealing plug 6 includes a threaded column 610 and a plug plate 620, and the side wall of the plug plate 620 facing the threaded column 610 is provided with an annular sealing groove 621, and an annular sealing ring is installed in the annular sealing groove 621 to improve the sealing performance A hexagonal groove 622 is opened on the side wall of the plug plate 620 away from the threaded post 610 so as to apply force to rotate the sealing plug 6 .

As shown in FIG. 7 , the installation base 2 includes an upper base 210 and a lower base 220 . The end of the upper base 210 away from the lower base 220 is provided with an installation groove 211 for the radial seal 3 to snap into. The installation groove 211 The two side walls 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 magnetic pole of the second magnetic block is the same as that of the first magnetic block. The principle of mutual repulsion reduces the frictional force on the end face of the radial sealing sheet 3 . The upper base 210 is vertically slidably connected to the lower base 220. Specifically, as shown in FIG. 7 and FIG. The lower base 220 is provided with a vertical waist hole 221, the diameter of the waist hole 221 is the same as that of the positioning pin 213, and the end of the positioning pin 213 away from the limit hole 212 is located in the waist hole 221; the lower base The two ends of the upper base 220 are in contact with the two ends of the upper base 210 respectively, and the bottom end of the upper base 210 defines 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 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 50 mm, and the first elastic members 230 are springs.

As shown in FIG. 5 , the 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 stopper 110 for preventing the radial sealing sheet 3 from rushing into the interior of the cylinder body 1 . 110 is integrally formed with the cylinder body 1, and the limit part 110 can wrap part of the radial sealing sheet 3 in the circumferential direction of the radial sealing sheet 3, so as to prevent the radial sealing sheet 3 from completely rushing into the cylinder body 1, and also prevent the upper One end of the base 210 close to the rotor 4 protrudes into the cylinder body 1 and collides with the rotor 4 , destroying the structure of the rotor 4 .

When installing the radial seal 3, install the radial seal 3 into the installation 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 installation The overall height of the base 2 becomes smaller, and then the installation base 2 with a reduced height is inserted into the installation channel 101. After the installation base 2 is in place, under the action of the first elastic member 230, the radial seal 3 and the cylinder The rotor 4 inside the body 1 forms a seal, and finally the sealing plug 6 is installed on the cylinder head 5 and tightened to seal the installation passage 101 and prevent the installation base 2 from moving axially ("axial" refers to the The direction parallel to the axial direction of the engine main shaft 7). During the working process of the rotor 4 engine, the rotor 4 rotates, and the friction between the radial sealing sheet 3 in the installation groove 211 and the rotor 4 is rolling friction, and when the radial sealing sheet 3 wears out, the friction between the first elastic member 230 Under the action, the radial sealing sheet 3 can move toward the rotor 4 along the radial direction of the rotor 4, so that the radial sealing sheet 3 can continue to form a seal with the rotor 4, realize radial compensation for the radial sealing sheet 3, and extend the diameter To the service life of the sealing sheet 3.

When the radial sealing sheet 3 needs to be replaced, the workman turns the sealing plug 6 on the cylinder head 5 to disassemble the sealing plug 6 to expose the installation base 2, and then pull out the installation base 2 (if necessary, the two The sealing plug 6 on the side cylinder cover 5 is disassembled so that the installation base 2) is released, and the worn radial sealing sheet 3 is taken out and replaced with a new radial sealing sheet 3. Then reinsert the installation base 2 into the installation channel 101 according to the above operation method, and reinstall the sealing plug 6 on the cylinder head 5 .

To sum up, in this embodiment, the radial seal 3 can be quickly installed and disassembled only on the cylinder head 5, and the disassembly process is easy to operate, which reduces the cost of use and improves the use and promotion of the rotor 4 engine. sex. Moreover, 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 is still in contact with the rotor 4. A seal is formed to realize radial compensation of the radial sealing sheet 3 and prolong the service life of the radial sealing sheet 3 . In addition, in this embodiment, the same-sex repulsion principle is also used to reduce the frictional force on the end faces of the radial sealing plates 3, and the overall cooperation greatly prolongs the service life of the rotor 4 engine.

Embodiment two

The difference between this embodiment and Embodiment 1 is that, as shown in Fig. 9, Fig. 10 and Fig. 11, a quick replacement device for a radial sealing system of a rotary engine in this embodiment also includes an installation boss 8, and the installation boss The platform 8 is located in the installation channel 101, and the outer peripheral wall of the installation boss 8 fits with most of the inner walls of the installation channel 101, and the installation boss 8 is provided with an upper base 210 along the radial direction of the cylinder body 1 ("cylinder body 1 "Radial" refers to the direction parallel to the radial direction of the engine main shaft 7) sliding radial chute 801 and the placement cavity 802 for the lower base 220 to be placed. The cylinder head 5 closes part of the end of the installation passage 101 , and the part of the installation passage 101 closed by the cylinder head 5 is located above the radial sliding groove 801 .

The placement cavity 802 is provided with a raised platform 9, which is used for placing the lower base 220. As shown in Figure 11, Figure 12 and 13, the first cam block 10 and the second cam block are axially slidably connected in the placement cavity 802 11. Specifically, a first slide slot 12 for the first cam block 10 to slide and a second slide slot 13 for the second cam block 11 to slide are opened in the placement cavity 802 . As shown in Fig. 12 and Fig. 13, the first cam block 10 and the second cam block 11 are connected by a connecting piece 14, and the connecting piece 14 can be welded with the first cam block 10 and the second cam block 11, or can be connected with the first cam block The block 10 and the second cam block 11 are movably connected. In this embodiment, the first cam block 10 and the second cam block 11 are provided with shaft pin holes for the connecting piece 14 to pass through, so that the connecting piece 14 can be driven when moving. The first cam block 10 and the second cam block 11 slide at the same time; the connector 14 is located below the lower base 220, and a drive assembly for driving the connector 14 to translate is provided in the placement cavity 802. In this embodiment, the drive assembly includes a screw thread The rod 15 and the raised platform 9 are provided with an axial threaded hole 901 threadedly connected with the threaded rod 15 , one end of the threaded rod 15 is rotationally connected with the connector 14 , and the other end of the threaded rod 15 extends out of the raised platform 9 . As shown in FIG. 13 , in this embodiment, the middle part of the connecting piece 14 is provided with a through hole through which the threaded rod 15 penetrates, and the end of the threaded rod 15 close to the connecting piece 14 is provided with two stoppers 151, and the connecting piece 14 is located on the two sides. Between the sheet limiting sheets 151. In addition, in order to provide more moving space for the threaded rod 15 , as shown in FIG. 14 , the sealing plug 6 is provided with a receiving blind hole 611 for the threaded rod 15 to extend into.

As shown in FIG. 12 , the first cam block 10 and the second cam block 11 are provided with track grooves 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 wire groove 16 on the first cam block 10, and the second track axis 18 cooperates with the track wire 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 installation base 2 is guaranteed to move in the radial direction , the lower base 220 will not rotate around. As shown in FIG. 15 , the sidewall of the lower base 220 is provided with a first limiting slot 215 for radial movement of the first track axis 17 and a second limiting slot 216 for radial movement of the second track axis 18 .

In this embodiment, when installing the radial seal 3, 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. During this process, the lower base 220 moves axially along the raised platform 9, the upper base 210 slides into the radial chute 801, and after the base 2 is installed in place, the first track axis 17 on the lower base 220 is located in the track line groove of the first cam block 10 16, the second trajectory axis 18 on the lower base 220 is located at the starting point of the trajectory groove 16 of the second cam block 11. Then, the worker rotates the threaded rod 15 clockwise, and the threaded rod 15 rotates clockwise while moving out of the placement cavity 802, thereby driving the connecting piece 14 to move towards the direction close to the raised platform 9, and then driving the first cam block 10 and the second cam block 10 The cam block 11 slides 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 installation base 2 moves radially toward the rotor 4, that is, the installation base 2 is forced to approach the rotor 4 until the end of the radial seal 3 close to the rotor 4 enters the interior of the cylinder 1 and forms a seal with the rotor 4. At this time, the first The elastic member 230 is in a compressed state and has radial elastic restoring force. Then, the worker no longer rotates the threaded rod 15, and the threaded rod 15 is still under the limitation of the axial threaded hole 901, so that the connecting piece 14, the first cam block 10, and the second cam block 11 are stationary, thereby ensuring that the lower base 220 It will not move in the radial direction, so as to realize the pre-tightening of the installation base 2 . Finally, workers install the sealing plug 6 on the cylinder head 5. During this process, the part of the threaded rod 15 protruding from the installation boss 8 can extend into the receiving blind hole 611 to ensure that the sealing plug 6 can normally seal the cylinder head 5. During the above process, since the cylinder head 5 closes part of the ends of the installation channel 101 , the installation 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 amount of wear of the radial sealing sheet 3, so that the radial sealing sheet 3 It can still form a precise fit with the rotor 4 to play a sealing role, and when the wear amount of the radial sealing plate 3 cannot be compensated by the first elastic member 230 (that is, during the rotation of the rotor 4, the radial sealing plate 3 cannot be formed with the rotor 4 seal, the first elastic member 230 is not compressed), the worker disassembles 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 piece 14), When the mounting boss 8 is exposed, the worker rotates the threaded rod 15 clockwise, and the threaded rod 15 drives the connecting piece 14 to move towards the direction close to the raised platform 9, thereby driving the first cam block 10 and the second cam block 11 to slide axially. A track shaft 17 continues to move upward along the track axis groove on the first cam block 10, and a 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 upward along the radial direction. The rotor 4 moves in the direction, that is, the installation base 2 is forced to approach the rotor 4 until the end of the radial sealing plate 3 close to the rotor 4 forms a seal with the rotor 4 again. At this time, the first elastic member 230 is in a compressed state again and has radial elastic recovery. force. In this way, the radial compensation of the radial sealing plate 3 can be realized again, the service life of the radial sealing plate 3 can be prolonged, and the replacement frequency of the radial sealing plate 3 can be reduced.

When the radial sealing sheet 3 needs to be replaced, the worker turns the sealing plug 6 on the cylinder head 5 to disassemble the sealing plug 6 to expose the installation boss 8 . The worker rotates the threaded rod 15 counterclockwise, and 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 raised platform 9, and the first track axis 17 is on the track line of the first cam block 10. The second track axis 18 moves downward in the track line slot 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 reconnects with the pad When the high platform 9 touches, the upper base 210 and the radial seal 3 are no longer blocked by the cylinder head 5, and the worker can no longer turn the threaded rod 15 counterclockwise, and take out the installation base 2 and replace it with a new radial seal. After installing sheet 3, reinstall the installation base 2 in place according to the above installation method. In addition, in this embodiment, the installation boss 8 can also be taken out from the installation channel 101 and replaced with a new installation boss 8 . After the replacement of the radial sealing sheet 3 is completed, the sealing plug 6 is reinstalled on the cylinder head 5 .

To sum up, compared with the first embodiment, this embodiment can realize the manual radial compensation of the radial sealing plate 3 , thereby further prolonging the service life of the radial sealing plate 3 .

Embodiment three

The difference between this embodiment and Embodiment 2 is that the drive assembly in this embodiment is different from the drive assembly in Embodiment 2, as shown in Figure 16 and Figure 17, the drive assembly in this embodiment includes a ball screw Auxiliary, raised platform 9 offers the through hole for the leading screw 19 of ball screw pair to run through, and the leading screw 19 of ball screw pair is connected on the raised platform 9 in rotation, and the nut 20 of ball screw pair is welded with connector 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 in this embodiment, the first cam block 10 as an example for description), as shown in Figure 18 and Figure 19, the positioning assembly includes a driver 21 and a locking member 22, and a first slide chamber 23 for the driver 21 to slide and a first slide chamber 23 for the driver 21 to slide are opened in the mounting boss 8. The second sliding chamber 24 where the locking member 22 slides, the first sliding chamber 23 and the second sliding chamber 24 are vertical, and the second sliding chamber 24 communicates with the placement chamber 802, and the second sliding chamber 24 is provided with a second elastic member 25, One end of the second elastic member 25 links to each other with the inner wall of the second sliding cavity 24, and the other end of the second elastic member 25 links to each other 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 piece 22 is against the first cam block 10/the second cam block 11). The first sliding chamber 23 is provided with a third elastic member 26 , one end of the third elastic member 26 is welded to the inner wall of the first sliding chamber 23 , and the other end of the third elastic member 26 is welded to the driving member 21 .

Both the first cam block 10 and the second cam are provided with a plurality of locking holes 27 for the locking member 22 to pass through, and the locking member 22 is released from the locking holes 27 under the action of the driving member 21. Specifically, the locking member 22 is provided with a wedge-shaped groove 2201 , the wedge-shaped groove 2201 has a first inclined surface, the first inclined surface faces the placement cavity 802, and the end of the driving member 21 close to the locking member 22 has a second inclined surface matching the first inclined surface. In this embodiment, the number of locking holes 27 is two, and the second elastic member 25 and the third elastic member 26 are both springs.

In this embodiment, when the installation base 2 is pre-tightened, the worker turns the lead screw 19 clockwise, and the nut 20 drives the connecting piece 14 to move toward the raised platform 9, and the first cam block 10 and the second cam block 11 generate axial tension. Sliding, 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 slot 16 on the second cam block 11, forcing the installation base 2 to move along the Move radially to the direction of 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 facing the locking member 22, so the locking member 22 is in the second position. Under the action of the elastic member 25, it slides towards the placement cavity 802, and the locking member 22 is inserted into the locking hole 27 to realize 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, realizing Preload.

When needing to carry out manual radial compensation to the radial seal 3, the worker presses the driver 21, the driver 21 overcomes the elastic force of the third elastic member 26 and slides, the second slope on the driver 21 and the locking member 22 (wedge-shaped) groove 2201) against the first inclined surface, push the locking piece 22 to slide away from the placement cavity 802, and the locking piece 22 breaks away from the corresponding locking hole 27, thereby realizing the release of the first cam block 10 and the second cam block 11, Then enter the radial compensation operation. Moreover, in 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 locked by the first cam block 10/

The second cam block 11 is blocked, and after the worker no longer presses the driver 21, the driver 21 resets under the action of the third elastic member 26, and the second slope on the driver 21 is no longer in line with the first slope on the locking member 22. offset, so that when the locking piece 22 is facing 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. .

Embodiment four

The difference between this embodiment and the third embodiment is that the structure of the driving member 21 and the locking member 22 in this embodiment is different from that of the driving member 21 and the locking member 22 in the third embodiment, as shown in Figure 20 and Figure 21 , the locking member 22 in this embodiment has a groove 2202 for the driving member 21 to pass through at the end away from the placement cavity 802, and a rotating roller 28 is connected to the groove 2202; the driving member 21 is on the side away from the placement groove A card slot 2101 is opened, and the card slot 2101 has a second slope, and the second slope is located on a side wall of the card slot 2101 away from the third elastic member 26 , and the rotating roller 28 is opposite to the bottom of the card slot 2101 .

In this embodiment, when a locking hole 27 on the first cam piece 10 and the second cam piece 11 is facing the locking piece 22, the locking piece 22 slides toward the placement cavity 802 under the action of the second elastic piece 25, Then, the locking member 22 is drawn into the locking hole 27 to realize the fixing of the first cam block 10 and the second cam block 11 . And when it is necessary to release the first cam block 10 and the second cam block 11, the worker presses the driver 21, the driver 21 overcomes the elastic force of the third elastic member 26 and slides, and the second cam on the driver 21 (drawing groove 2101) The inclined surface is against the rotating roller 28, and the locking member 22 is pushed to slide 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 realizing alignment between the first cam block 10 and the second cam block 11. release. Afterwards, 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 resets under the action of the third elastic member 26 .

Embodiment five

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, as shown in FIG. 22 , this embodiment In an example, the third elastic member 26 is not provided in the first sliding chamber 23, the locking member 22 is a rack, the driving member 21 is a rotating rod, and the rotating rod is provided with a gear 29 meshing with the rack.

When the locking piece 22 is facing the locking hole 27, the locking piece 22 slides in the direction of the placement cavity 802 under the action of the second elastic piece 25, and the locking piece 22 is inserted into the locking hole 27 to realize alignment between the first cam block 10 and the second cam block 10. Locking of the cam block 11. When the first cam block 10 and the second cam block 11 need to be released, the worker turns the rotating rod, and the gear 29 on the rotating rod is engaged with the locking member 22, so that the locking member 22 slides away from the placement cavity 802, and the second elastic member 25 is compressed, and the locking member 22 disengages from the locking hole 27, thereby realizing the release of the first cam block 10 and the second cam block 11.

The above is only an embodiment of the present invention, and the invention is not limited to the field involved in this implementation case. The common knowledge such as the specific structure and characteristics known in the scheme is not described here, and those of ordinary skill in the art know the filing date or priority All ordinary technical knowledge in the technical field to which the invention belongs before the date, can know all the prior art in this field, and have the ability to apply the conventional experimental methods before the date, those of ordinary skill in the art can, under the inspiration given by this application, To perfect and implement this solution in combination with one's own ability, some typical known structures or known methods should not become obstacles for those of ordinary skill in the art to implement this application. It should be pointed out that for those skilled in the art, under the premise of not departing from the structure of the present invention, several modifications and improvements can also be made, and these should also be regarded as the protection scope of the present invention, and these will not affect the implementation of the present invention. Effects and practicability of the present invention. The scope of protection required by this application shall be based on the content of the claims, and the specific implementation methods and other records in the specification may be used to interpret the content of the claims.

Claims (10)

1. The utility model provides a rotary engine radial seal system quick replacement device which characterized in that: the cylinder body is provided with an installation channel for inserting the installation base, the installation channel is communicated with the inside of the cylinder body, two side walls of the cylinder body in the length direction of the installation channel are respectively provided with a cylinder cover, and the cylinder cover is detachably provided with a sealing plug for sealing the end part of the installation channel; the mounting base includes upper base and lower base, and the upper base is kept away from lower base one end and is offered the mounting groove that supplies radial gasket card to go into, upper base and the vertical sliding connection of lower base, and be equipped with a plurality of first elastic components between upper base and the lower base, the one end of first elastic component links to each other with the upper base, and the other end of first elastic component links to each other with lower base.

2. The rotary engine radial seal system quick change device of claim 1, wherein: the device also comprises an installation boss, the installation boss is positioned in the installation channel, the peripheral wall of the installation boss is matched with the inner wall of the installation channel, a radial sliding groove for the upper base to slide along the radial direction of the cylinder body and a placing cavity for the lower base to be placed are formed in the installation boss, part of the end part of the installation channel is sealed by the cylinder cover, the part of the installation channel sealed by the cylinder cover is positioned above the radial sliding groove, a heightening table 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 mode, 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 move horizontally is arranged in the placing cavity; the 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.

3. The rotary engine radial seal system quick change device of claim 2, wherein: the driving assembly comprises a threaded rod, an axial threaded hole in threaded connection with the threaded rod is formed in the heightening table, one end of the threaded rod is rotatably connected with the connecting piece, and the other end of the threaded rod extends out of the heightening table.

4. The rotary engine radial seal system quick change device of claim 3, wherein: and the sealing plug is provided with an accommodating blind hole for the threaded rod to extend into.

5. The rotary engine radial seal system quick change device of claim 2, wherein: the driving assembly comprises a ball screw pair, the heightening table is provided with a through hole for a screw of the ball screw pair to penetrate through, the screw of the ball screw pair is rotationally connected to the heightening table, and a nut of the ball screw pair is fixedly connected with the connecting piece; the mounting boss is provided with a positioning assembly used 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 the driving piece to slide and a second sliding cavity for the locking piece to slide are formed in the mounting boss, the first sliding cavity is perpendicular to the second sliding cavity, 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; a plurality of locking holes for the locking pieces to penetrate are formed in the first cam block and the second cam, and the locking pieces are separated from the locking holes under the action of the driving pieces.

6. The rotary engine radial seal system quick change device of claim 5, 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 last to have seted up the wedge groove, and the wedge groove has first inclined plane, first inclined plane orientation place the chamber, the driving piece be close to the locking piece one end have with first inclined plane complex second inclined plane.

7. The rotary engine radial seal system quick-change device of claim 5, wherein: a third elastic piece is arranged in the first sliding cavity, one end of the third elastic piece is abutted against the inner wall of the first sliding cavity, and the other end of the third elastic piece is abutted against the driving piece; the confession is seted up to the one end that the chamber was kept away from to the locking piece the recess that the driving piece ran through is equipped with in the recess and changes the roller, the driving piece has been seted up on keeping away from one side of standing groove, the draw-in groove has the second inclined plane, and the second inclined plane is located the draw-in groove and keeps 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.

8. The rotary engine radial seal system quick change device of claim 1, wherein: and one end of the mounting channel, which is close to the interior of the cylinder body, is provided with a limiting part for preventing the radial sealing sheet from being flushed into the interior of the cylinder body.

9. The rotary engine radial seal system quick change device of claim 1, wherein: the upper base is provided with a limiting hole, a positioning pin is in interference fit in the limiting hole, the lower base is provided with a vertically arranged waist-round hole, the diameter of the waist-round hole is the same as that of the positioning pin, and one end of the positioning pin, which is far away from the limiting hole, is positioned in the waist-round hole; and two ends of the lower base are respectively attached to two ends of the upper base.

10. The rotary engine radial seal system quick change device of claim 1, wherein: the mounting groove 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 the second magnetic blocks at one ends opposite to the first magnetic blocks are the same.

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