A rotor engine end cover with a wear resistant coating

Abstract

The utility model discloses a rotor engine end cover with wear -resisting coating relates to rotor engine field, including generator, be provided with the main shaft on the generator, and the one side detachable mounting of generator has the end cover, and the end cover movable sleeve sets on the main shaft, still include the primary seal structure of arrangement in the end cover inside for realizing the primary seal between the main shaft and the end cover, the utility model discloses, through the setting of L type sealing washer and arc seal circle no.

Description

Technical Field

[0001] This utility model relates to the field of rotary engine technology, and specifically to a rotary engine end cover with a wear-resistant coating. Background Technology

[0002] The end caps of a rotary engine, also known as side caps or end shells, are metal covers installed on both sides of the rotor. Their main functions are to seal the combustion chamber and support the rotation of the rotor shaft. The quality of the end caps directly affects the engine's sealing performance, reliability, and lifespan.

[0003] In the existing technology, the generator main shaft will rub against the seals for a long time when it rotates. Long-term use will inevitably cause wear and tear, which will reduce the service life of the seals. If used in rainy weather, rainwater may seep in through the connection between the end cover and the main shaft. It is not convenient to remind the staff to check the sealing condition in time when water enters. Utility Model Content

[0004] To address the aforementioned technical shortcomings, the purpose of this utility model is to provide a rotor engine end cover with a wear-resistant coating, thereby solving the problem mentioned in the background art where the generator main shaft rubs against the seals for a long time during rotation, resulting in a reduced service life of the seals. In rainy weather, rainwater may seep in through the connection between the end cover and the main shaft, making it difficult to promptly remind staff to check the sealing condition when water enters.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: A rotor engine end cover with a wear-resistant coating includes a generator, on which a main shaft is mounted, and an end cover is detachably mounted on one side of the generator, the end cover being movably sleeved on the main shaft; it also includes: The primary sealing structure is located inside the end cover and is used to achieve a primary seal between the spindle and the end cover. The secondary sealing structure is located inside the end cap and works in conjunction with the primary sealing structure to achieve a double seal. An alarm structure, located on the end cap, is used to generate an audible and visual alarm when water leaks in.

[0006] Preferably, the primary sealing structure includes: Several fixing bolts are inserted inside the end cover and threaded onto the generator; Support rings are arranged on the inner wall of the end cap; The L-shaped sealing ring is arranged on one side of the support ring and contacts the inner wall of the end cap; The first arc-shaped sealing ring is arranged on the L-shaped sealing ring and is in contact with the surface of the spindle.

[0007] Preferably, the primary sealing structure further includes: An annular airbag is arranged inside the end cap and located between the arc-shaped sealing ring and the L-shaped sealing ring. The connecting tube has one end positioned on the annular airbag and the other end passing through the end cap. One-way intake valve is located at one end of the connecting pipe; An inflatable airbag is positioned on one of the one-way air intake valves; One-way air intake valve two is located on the inflatable airbag.

[0008] Preferably, the secondary sealing structure includes: movable sealing ring; Arc-shaped sealing ring two is arranged on the movable sealing ring and in contact with the surface of the spindle; A ring frame is arranged inside the end cap, and several through holes are provided on the ring frame; The annular slide is slidably installed inside the end cover, and the annular slide is installed on one side of the movable sealing ring; An expansion seal ring is installed inside the annular slide, and the expansion seal ring corresponds to the through hole.

[0009] Preferably, the secondary sealing structure further includes a beveled ring, which is arranged on the inner wall of the end cap, and the beveled surface of the beveled ring is in contact with the arc-shaped sealing ring.

[0010] Preferably, the end cap has a sliding groove inside, and the annular slide and the movable sealing ring are both slidably installed in the sliding groove.

[0011] Preferably, the alarm structure includes: Pressure plates are arranged on the annular carriage; The switch is located on the inner wall of the end cap and on one side of the pressure plate; An audible and visual alarm is installed on the outer surface of the end cap. The control module is electrically connected to the audible and visual alarm and the switch via wires.

[0012] Preferably, the control module includes: The signal acquisition unit is electrically connected to the switch via wires and is used to acquire the action signal output by the switch; The microcontroller is electrically connected to the signal acquisition unit and is used to receive signals transmitted by the signal acquisition unit. The output unit is electrically connected to the audible and visual alarm and the microcontroller. It is used to receive control signals sent by the microcontroller and drive the audible and visual alarm to emit audible and visual alarm signals.

[0013] The beneficial effects of this utility model are as follows: Compared with the prior art, the beneficial effects of this utility model are: This invention, through the combination of an L-shaped sealing ring and an arc-shaped sealing ring, can increase the sealing performance between the end cover and the main shaft, preventing water from entering the connection between the main shaft and the generator. When the L-shaped sealing ring wears out after long-term use, the annular air bladder can be inflated by repeatedly pressing the air bladder, causing the annular air bladder to expand and squeeze the arc-shaped sealing ring, allowing the arc-shaped sealing ring to adhere tightly to the main shaft surface again, improving the fit and sealing performance between the arc-shaped sealing ring and the main shaft. At the same time, the wear of the arc-shaped sealing ring can be adjusted and compensated according to its wear level, extending the service life of the seal.

[0014] In this invention, when the arc-shaped sealing ring is severely worn and water enters the end cover, the water will come into contact with the expansion sealing ring through the through hole, causing the expansion sealing ring to absorb water and expand. The expanded sealing ring will squeeze the annular frame and drive the annular slide, the movable sealing ring, and the second arc-shaped sealing ring to move, so that the movable sealing ring is pressed against the inner wall of the slide groove. At the same time, the second arc-shaped sealing ring will be squeezed by the inclined ring and pressed against the surface of the main shaft, achieving the effect of a two-stage seal. As the annular slide moves, it will drive the pressure plate to squeeze and trigger the switch, thereby activating the audible and visual alarm and issuing an alarm, promptly reminding the staff to check and repair, avoiding the problem from escalating due to undetected leakage. It works in conjunction with the two-stage seal to temporarily block water, buying time for maintenance. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 A schematic diagram of the structure of a rotor engine end cover with a wear-resistant coating provided for an embodiment of this utility model; Figure 2 A cross-sectional structural schematic diagram of a rotor engine end cover with a wear-resistant coating provided for an embodiment of this utility model; Figure 3 This utility model provides a rotary engine end cover with a wear-resistant coating. Figure 2 A schematic diagram of the structure of part A; Figure 4 This is a schematic diagram of the main shaft connection structure of a rotor engine end cover with a wear-resistant coating, provided for an embodiment of this utility model.

[0017] Explanation of reference numerals in the attached figures: 1. Generator; 101. Main shaft; 2. End cover; 201. Fixing bolt; 202. L-shaped sealing ring; 203. Arc-shaped sealing ring one; 204. Annular airbag; 205. Connecting pipe; 206. One-way air intake valve one; 207. Inflatable airbag; 208. One-way air intake valve two; 209. Support ring; 3. Movable sealing ring; 301. Arc-shaped sealing ring two; 302. Annular frame; 303. Through hole; 304. Annular slide; 305. Expansion sealing ring; 306. Inclined ring; 307. Slide groove; 4. Pressure plate; 401. Switch; 402. Audible and visual alarm. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Example 1: Please refer to Figure 1-4 This utility model provides a technical solution: a rotor engine end cover with a wear-resistant coating, including a generator 1, a main shaft 101 on the generator 1, an end cover 2 detachably installed on one side of the generator 1, and the end cover 2 movably sleeved on the main shaft 101; it also includes a primary sealing structure arranged inside the end cover 2 to achieve a primary seal between the main shaft 101 and the end cover 2.

[0020] Furthermore, the primary sealing structure includes several fixing bolts 201 inserted inside the end cover 2 and threaded onto the generator 1, a support ring 209 arranged on the inner wall of the end cover 2, an L-shaped sealing ring 202 arranged on one side of the support ring 209 and in contact with the inner wall of the end cover 2, and an arc-shaped sealing ring 203 arranged on the L-shaped sealing ring 202 and in contact with the surface of the main shaft 101. By utilizing the contact between the arc-shaped sealing ring 203 and the main shaft 101, and the contact between the L-shaped sealing ring 202 and the inner wall of the end cover 2, water can be prevented from entering the interior of the end cover 2.

[0021] Furthermore, the primary sealing structure also includes an annular airbag 204 arranged inside the end cover 2 and located between the arc-shaped sealing ring 203 and the L-shaped sealing ring 202, a connecting pipe 205 arranged on the annular airbag 204, one end of the connecting pipe 205 passing through the end cover 2, a one-way air inlet valve 206 arranged at one end of the connecting pipe 205, an inflatable airbag 207 arranged on the one-way air inlet valve 206, and a one-way air inlet valve 208 arranged on the inflatable airbag 207. Repeatedly pressing the inflatable airbag 207 can continuously inflate the annular airbag 204, opening the annular airbag 204. The one-way air inlet valve 206 can prevent the gas in the connecting pipe 205 and the annular airbag 204 from leaking out, so that the annular airbag 204 will squeeze the arc-shaped sealing ring 203, improving the fit between the arc-shaped sealing ring 203 and the spindle 101.

[0022] Example 2: As Figure 3-4 To further improve the sealing effect of the spindle 101, a two-stage sealing structure was arranged.

[0023] The secondary sealing structure includes a movable sealing ring 3 and an arc-shaped sealing ring 301 arranged on the movable sealing ring 3 and in contact with the surface of the main shaft 101. An annular frame 302 is arranged inside the end cover 2, and several through holes 303 are opened on the annular frame 302. An annular slide 304 is slidably installed inside the end cover 2 and is installed on one side of the movable sealing ring 3. An expansion sealing ring 305 is installed inside the annular slide 304 and corresponds to the through holes 303. If the arc-shaped sealing ring 203 is damaged and water enters the end cover 2, the water will come into contact with the expansion sealing ring 305 through the through holes 303. After absorbing water, the expansion sealing ring 305 expands and will squeeze the annular frame 302 and push the annular slide 304 to move, thereby driving the movable sealing ring 3 and the arc-shaped sealing ring 301 to move.

[0024] The secondary sealing structure also includes a beveled ring 306 arranged on the inner wall of the end cover 2. The beveled surface of the beveled ring 306 contacts the arc-shaped sealing ring 301. A sliding groove 307 is provided inside the end cover 2. The annular slide 304 and the movable sealing ring 3 are both slidably installed in the sliding groove 307. When the arc-shaped sealing ring 301 moves, it will be squeezed by the beveled surface of the beveled ring 306 and stick to the surface of the main shaft 101, while the movable sealing ring 3 will be pressed against the inner wall of the sliding groove 307.

[0025] Example 3: As Figure 1-4 An alarm system was installed to promptly alert staff to check and handle any seal failures.

[0026] The alarm structure includes a pressure plate 4 arranged on a ring slide 304, a switch 401 arranged on the inner wall of the end cover 2 and located on one side of the pressure plate 4, an audible and visual alarm 402 arranged on the outer surface of the end cover 2, and a control module electrically connected to the audible and visual alarm 402 and the switch 401 via wires. The control module includes a signal acquisition unit electrically connected to the switch 401 via wires for acquiring the action signal output by the switch 401, a microcontroller electrically connected to the signal acquisition unit for receiving the signal transmitted by the signal acquisition unit, and the audible and visual alarm 402 and the microcontroller electrically connected to each other. The output unit is used to receive control signals sent by the microcontroller and drive the audible and visual alarm 402 to emit audible and visual alarm signals. When the annular slide 304 moves, it will drive the pressure plate 4 to move. The moving pressure plate 4 will squeeze and trigger the switch 401, causing the switch 401 to send a signal to the control module. The control module controls the audible and visual alarm 402 to emit audible and visual alarms. The control module can also use a controller of model RP-1002P, which is mainly used to receive the signal from the manual alarm button and immediately activate the audible and visual alarm to emit an alarm. The other features are the same as in embodiment 2.

[0027] The working principle is as follows: End cap 2 can be fixed to one side of generator 1 by fixing bolt 201, and simultaneously sleeved on main shaft 101. Alternatively, end cap 2 can be welded to generator 1 to improve the sealing of the connection. The contact between arc-shaped sealing ring 203 and main shaft 101, and the contact between L-shaped sealing ring 202 and inner wall of end cap 2, prevents water from entering the interior of end cap 2. If arc-shaped sealing ring 203 wears down after prolonged use, the inflation bladder 207 can be repeatedly pressed. The pressure of the inflation bladder 207 will deliver its internal gas through one-way inlet valve 206 to connecting pipe 205, and then to the ring... The annular airbag 204 is inflated. The one-way air intake valve 206 prevents gas leakage from the connecting pipe 205 and the annular airbag 204. When the inflatable airbag 207 is released, the inflatable airbag 207 will return to its original shape under its own elasticity. During the process, it will draw in outside air from the one-way air intake valve 208. This process is repeated to inflate the annular airbag 204 and make it stand up. The annular airbag 204 will squeeze the arc-shaped sealing ring 203, causing the arc-shaped sealing ring 203 to deform and stick to the surface of the main shaft 101, thus improving the fit between the arc-shaped sealing ring 203 and the main shaft 101.

[0028] If the arc-shaped sealing ring 203 is damaged, allowing water to enter the end cap 2, the arc-shaped sealing ring 301 can provide a secondary seal. The water will then pass through the through-hole 303 and contact the expansion sealing ring 305. After absorbing water, the expansion sealing ring 305 expands and compresses against the annular frame 302, pushing the annular slide 304 towards the inclined ring 306. The moving annular slide 304 will slide within the groove 307, simultaneously moving the movable sealing ring 3 and the arc-shaped sealing ring 301. When 301 moves, it will be squeezed by the inclined surface of the inclined ring 306 and pressed against the surface of the main shaft 101. The moving movable sealing ring 3 will press against the inner wall of the slide groove 307, thereby improving the sealing effect. When the annular slide 304 moves, it will drive the pressure plate 4 to move. The moving pressure plate 4 will squeeze and trigger the switch 401, causing the switch 401 to send a signal to the control module. The control module will then control the audible and visual alarm 402 to issue an audible and visual alarm, so as to promptly remind the staff to check the sealing status and prevent water from entering the generator 1 and causing damage.

[0029] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A rotor engine end cover with a wear-resistant coating, comprising a generator (1), wherein a main shaft (101) is disposed on the generator (1), and an end cover (2) is detachably mounted on one side of the generator (1), the end cover (2) being movably sleeved on the main shaft (101), and the surface of the end cover (2) being covered with a wear-resistant coating; characterized in that, Also includes: A primary sealing structure is arranged inside the end cover (2) to achieve a primary seal between the spindle (101) and the end cover (2); The secondary sealing structure is arranged inside the end cap (2) and works with the primary sealing structure to achieve a double seal; An alarm structure is arranged on the end cap (2) to generate an audible and visual alarm when water leaks in.

2. The rotor engine end cover with a wear-resistant coating according to claim 1, characterized in that: The primary sealing structure includes: Several fixing bolts (201) are inserted inside the end cover (2) and threaded onto the generator (1); A support ring (209) is arranged on the inner wall of the end cap (2); The L-shaped sealing ring (202) is arranged on one side of the support ring (209) and in contact with the inner wall of the end cap (2); An arc-shaped sealing ring (203) is arranged on the L-shaped sealing ring (202) and in contact with the surface of the main shaft (101).

3. The rotor engine end cover with a wear-resistant coating according to claim 1, characterized in that: The primary sealing structure also includes: An annular airbag (204) is arranged inside the end cap (2) and located between the arc-shaped sealing ring (203) and the L-shaped sealing ring (202); The connecting tube (205) has one end placed on the annular airbag (204) and the other end passes through the end cap (2). One-way intake valve (206) is located at one end of the connecting pipe (205); An inflatable airbag (207) is arranged on a one-way air intake valve (206); One-way air intake valve 2 (208) is arranged on the inflatable airbag (207).

4. The rotor engine end cover with a wear-resistant coating according to claim 1, characterized in that: The secondary sealing structure includes: Active sealing ring (3); Arc-shaped sealing ring 2 (301) is arranged on the movable sealing ring (3) and in contact with the surface of the main shaft (101); A ring frame (302) is arranged inside the end cap (2), and several through holes (303) are provided on the ring frame (302). The annular slide (304) is slidably installed inside the end cover (2), and the annular slide (304) is installed on one side of the movable sealing ring (3); An expansion seal (305) is installed inside the annular slide (304), and the expansion seal (305) corresponds to the through hole (303).

5. A rotor engine end cover with a wear-resistant coating according to claim 1, characterized in that: The secondary sealing structure also includes a beveled ring (306), which is arranged on the inner wall of the end cap (2), and the beveled surface of the beveled ring (306) is in contact with the arc-shaped sealing ring (301).

6. The rotor engine end cover with a wear-resistant coating according to claim 1, characterized in that: The end cap (2) has a sliding groove (307) inside, and the annular slide (304) and the movable sealing ring (3) are both slidably installed in the sliding groove (307).

7. A rotor engine end cover with a wear-resistant coating according to claim 1, characterized in that: The alarm structure includes: Pressure plate (4) is arranged on an annular slide (304); The switch (401) is arranged on the inner wall of the end cap (2) and located on one side of the pressure plate (4); An audible and visual alarm (402) is arranged on the outer surface of the end cap (2); The control module is electrically connected to the audible and visual alarm (402) and the switch (401) via wires.

8. A rotor engine end cover with a wear-resistant coating according to claim 7, characterized in that: The control module includes: The signal acquisition unit is electrically connected to the switch (401) via a wire and is used to acquire the action signal output by the switch (401); The microcontroller is electrically connected to the signal acquisition unit and is used to receive signals transmitted by the signal acquisition unit. The output unit is electrically connected to the audible and visual alarm (402) and the microcontroller. It is used to receive the control signals sent by the microcontroller and drive the audible and visual alarm (402) to emit audible and visual alarm signals.

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