Sliding vane mechanism applied to rotor compressor

Abstract

The slip sheet mechanism comprises a first slip sheet and a second slip sheet, the first slip sheet and the second slip sheet are attached and connected into a whole, one ends, in the same direction, of the first slip sheet and the second slip sheet are always located in an air cylinder to serve as inner ends, and the other ends, in the same direction, of the first slip sheet and the second slip sheet serve as outer ends; the first slip sheet is provided with a plurality of mounting blocks, and the mounting blocks are linearly distributed in the direction from the inner end to the outer end; a plurality of mounting grooves are formed in the second sliding piece, the mounting blocks are clamped into the mounting grooves in a one-to-one correspondence mode, and a through cavity is formed in each mounting block; main oil ways and connecting oil ways are arranged in the positions, corresponding to the mounting blocks, in the first sliding piece, the main oil ways are communicated with one ends of the through cavities in the corresponding mounting blocks through the connecting oil ways, all the main oil ways are sequentially communicated in series to form a series oil way, and the initial end of the first-stage main oil way is arranged on the first sliding piece to form an oil inlet; the last stage of main oil way is arranged at the outer end of the first sliding piece to form an oil outlet. A plurality of oil sealing lines can be formed, and the anti-leakage capacity is higher.

Description

Technical Field

[0001] The invention relates to the field of rotor compressor vanes, and in particular to a vane mechanism applied to a rotor compressor. Background Art

[0002] The rotary compressor is driven by an engine or an electric motor. The compressor rotor rotates along the cylinder wall. The vane is integrated with the compressor rotor. The vane swings back and forth in the middle of the rocking vane. The oil film formed by the lubricating oil between the moving parts is sealed. When the motor drives the crankshaft to move, it will cause the volume of the cavity formed by the outer ring of the compressor roller, the cylinder bore and the vane to change, completing the intake and exhaust process.

[0003] In a vane-type rotary compressor, a specially shaped sealed working chamber is formed between the rotor, vanes and cylinder, wherein the vanes and cylinder are sealed by an oil film formed by lubricating oil. When the rotary compressor is operating, the vanes need to perform reciprocating motion all the time. Over time, the vanes and the cylinder wall may wear and deform, causing the mixture of gas and coolant to leak from between the vanes and the cylinder wall to the outside, reducing the working efficiency of the rotary compressor.

[0004] There is only one sealing line between the side surface of the existing sliding vane and the cylinder wall, and the leakage prevention capability is poor. In addition, the existing sliding vane has a low utilization rate of lubricating oil. Summary of the Invention

[0005] The present invention provides a sliding vane mechanism applied to a rotary compressor, so as to solve the problem of poor anti-leakage capability of the sliding vanes of the rotary compressor in the prior art.

[0006] In order to achieve the above object, the technical solution adopted by the present invention is: A vane mechanism for a rotary compressor comprises a first vane (1) and a second vane (2), wherein one side of the first vane (1) is in contact with one side of the second vane (2), and the first vane (1) and the second vane (2) are connected as one body, and one end of the first vane (1) and the second vane (2) in the same direction is always located in a cylinder, the end of the first vane (1) and the second vane (2) always located in the cylinder is regarded as an inner end, and the other end of the first vane (1) and the second vane (2) in the same direction is regarded as an outer end; A first slide (1) is provided with a plurality of mounting blocks on a side that is in contact with the second slide (2), and each mounting block is distributed in a straight line from the inner end to the outer end of the first slide (1); a second slide (2) is provided with a plurality of mounting grooves on a side that is in contact with the first slide (1), and each mounting block is correspondingly inserted into the mounting groove, and each mounting block has a through cavity that passes through the mounting block; A main oil circuit and a connecting oil circuit are respectively provided inside the first slide (1) corresponding to each mounting block, and the main oil circuit corresponding to each mounting block is connected to one end of the through cavity in the corresponding mounting block through the connecting oil circuit; wherein the starting end of the main oil circuit corresponding to the mounting block closest to the inner end of the first slide (1) is arranged on a side of the first slide (1) facing away from the second slide (2) to form an oil inlet (8), and the ending end of the main oil circuit corresponding to the mounting block closest to the outer end of the first slide (1) is arranged on the outer end of the first slide (1) to form an oil outlet, and the main oil circuits of each mounting block are connected in series in sequence to form a series oil circuit.

[0007] Furthermore, the first sliding plate (1) and the second sliding plate (2) are fixedly connected as one body by bolts.

[0008] Furthermore, the inner ends of the first slide (1) and the second slide (2) are detachably connected via an assembly part (3).

[0009] Furthermore, the assembly part (3) includes a U-shaped part (32), and the inner sides of the two arms of the U-shaped part (32) are respectively provided with a clamping block (31); the first slide (1) and the second slide (2) are respectively provided with a clamping groove (9) on two symmetrical sides of the inner ends, and the clamping grooves (9) on the same side of the inner ends of the first slide (1) and the second slide (2) are connected to form a connecting clamping groove; the U-shaped part (32) is clamped on the inner ends of the first slide (1) and the second slide (2) through the U-shaped mouth, and the clamping blocks (31) on the inner sides of the two arms of the U-shaped part (32) are correspondingly inserted into the connecting clamping grooves on both sides of the inner ends.

[0010] Furthermore, each card block (31) is clearance-matched with the corresponding communicating card slot.

[0011] Furthermore, inside the first slide (1), a one-way valve (12) is provided between the main oil circuit corresponding to the mounting block closest to the inner end of the first slide (1) and the adjacent next-level main oil circuit, and the end of the main oil circuit corresponding to the mounting block closest to the inner end of the first slide (1) is connected to the start of the adjacent next-level main oil circuit through the one-way valve (12).

[0012] Furthermore, inside the first slide (1), a one-way valve (12) is provided between each two adjacent main oil circuits in the series oil circuit. In each of the two adjacent main oil circuits, the end of the upper main oil circuit is connected to the beginning of the lower main oil circuit via the one-way valve (12).

[0013] Compared with the prior art, the present invention has the following advantages: The structure of the present invention is novel and reasonable. Compared with the existing sliding vanes, in the sliding vane mechanism proposed by the present invention, since the first sliding vane has multiple mounting blocks that are inserted into the mounting grooves of the second sliding vane, multiple oil sealing lines can be formed between the sliding vane mechanism of the present invention and the cylinder wall, and the anti-leakage ability is stronger.

[0014] The sliding vane mechanism proposed by the present invention makes more effective use of lubricating oil, so that the oil sealing film between the sliding vane and the cylinder is more stable after forming. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic exploded view of the structure of the sliding vane of the present invention.

[0016] Figure 2 It is a schematic structural plan view of the sliding plate of the present invention. DETAILED DESCRIPTION

[0017] The present invention will be further described below with reference to the accompanying drawings and examples.

[0018] like Figure 1 、 Figure 2 As shown, this embodiment discloses a vane mechanism applied to a rotary compressor, comprising a first vane 1 and a second vane 2. The first vane 1 is located above the second vane 2, with the bottom surface of the first vane 1 in contact with the top surface of the second vane 2.

[0019] The first slide 1 is provided with a plurality of threaded through holes 15 vertically passing through the first slide 1, and the top of the second slide 2 is provided with a plurality of threaded blind holes, and the positions of the threaded blind holes correspond one to one to the threaded through holes 15. After the first slide 1 and the second slide 2 are fitted together, the first slide 1 and the second slide 2 are fixedly connected to form a combined slide by bolts passing through each threaded through hole 15 and the threaded blind hole.

[0020] In the combined sliding vane, the front ends of the first sliding vane 1 and the second sliding vane 2 are always located in the cylinder, the front ends of the first sliding vane 1 and the second sliding vane 2 are always located in the cylinder as the inner ends, and the rear ends of the first sliding vane 1 and the second sliding vane 2 are the outer ends.

[0021] The bottom surface of the first slide 1 is provided with a number of mounting blocks, and the top surface of the second slide 2 is provided with a number of mounting slots. The mounting blocks are arranged in a straight line from front to back on the bottom surface of the first slide 1, and the mounting slots are arranged in a straight line from front to back on the top surface of the second slide 2, with each mounting slot corresponding to the mounting block. When the first slide 1 is attached to the second slide 2, the mounting blocks on the bottom surface of the first slide 1 snap into the mounting slots on the top surface of the second slide 2, and each mounting block has a through cavity that runs vertically through the mounting block.

[0022] A main oil circuit and a connecting oil circuit are provided within the first slide 1, corresponding to each mounting block. The main oil circuit corresponding to each mounting block is connected to the upper end of the through cavity within the corresponding mounting block via the connecting oil circuit. The main oil circuit corresponding to the mounting block closest to the inner end of the first slide 1 begins at the top surface of the first slide 1 facing away from the second slide 2, forming an oil inlet 8. The main oil circuit corresponding to the mounting block closest to the outer end of the first slide 1 ends at the outer end of the first slide 1, forming an oil outlet. The main oil circuits of each mounting block are sequentially connected in series to form a series oil circuit. Within each adjacent series oil circuit, the end of the upper main oil circuit is connected to the beginning of the lower main oil circuit.

[0023] Inside the first slide 1, a one-way valve 12 is provided between the main oil circuit corresponding to the mounting block closest to the inner end of the first slide 1 and the adjacent next-level main oil circuit. The end of the main oil circuit corresponding to the mounting block closest to the inner end of the first slide 1 is connected to the starting end of the adjacent next-level main oil circuit through the one-way valve 12, and the connection direction of the one-way valve 12 is from the main oil circuit corresponding to the mounting block closest to the inner end of the first slide 1 to the adjacent next-level main oil circuit.

[0024] Alternatively, inside the first slide 1, a one-way valve 12 is provided between each two adjacent main oil circuits in the series oil circuit. In each of the two adjacent main oil circuits, the end of the upper main oil circuit is connected to the beginning of the lower main oil circuit through the one-way valve 12, and the connection direction of the one-way valve 12 is from the upper main oil circuit to the lower main oil circuit.

[0025] This embodiment is described by taking the number of mounting blocks and mounting slots as two as an example. Figure 1 、 Figure 2 As shown, the bottom surface of the first slide 1 is provided with a first mounting block 4 and a second mounting block 6. The first mounting block 4 is close to the inner end of the first slide 1, and the second mounting block 6 is close to the outer end of the first slide 1. The top surface of the second slide 2 is provided with a first mounting groove 5 and a second mounting groove 7. The first mounting groove 5 is close to the inner end of the second slide 2, and the second mounting groove 7 is close to the outer end of the second slide 2. The first mounting block 4 and the second mounting block 6 are snapped into the first mounting groove 5 and the second mounting groove 7 in a one-to-one correspondence. The first mounting block 4 and the second mounting block 6 each have a through cavity that vertically passes through the mounting block.

[0026] Correspondingly, a first main oil circuit 11 and a first connecting oil circuit 14 are provided inside the first slide 1 corresponding to the first mounting block 4, and a second main oil circuit 13 and a second connecting oil circuit 10 are provided inside the first slide 1 corresponding to the second mounting block 6. The starting end of the first main oil circuit 11 is provided on the top surface of the first slide 1 to form an oil inlet 8. The upper end of the first connecting oil circuit 14 is connected to the bottom of the first main oil circuit 11, and the lower end of the first connecting oil circuit 14 is connected to the upper end of the through cavity in the first mounting block 4. The end of the first main oil circuit 11 is connected to the starting end of the second main oil circuit 13 through a one-way valve 12, and the connection direction of the one-way valve 12 is from the first main oil circuit 11 to the second main oil circuit 13. The end of the second main oil circuit 13 is provided on the outer end of the first slide 1 to form an oil outlet. The upper end of the second connecting oil circuit 10 is connected to the bottom of the second main oil circuit 13, and the lower end of the second connecting oil circuit 10 is connected to the upper end of the through cavity in the second mounting block 6.

[0027] Thus, the first main oil circuit 11 and the second main oil circuit 13 are connected in series to form a series oil circuit. Lubricating oil is injected into the first main oil circuit 11 through the oil inlet 8. The lubricating oil will first flow into the internal cavity of the first mounting block 4 through the first connecting oil circuit 14, and then the lubricating oil inside the first main oil circuit 11 is injected into the second main oil circuit 13 through the one-way valve 12. In the second main oil circuit 13, it first flows into the internal cavity of the second mounting block 6 through the second connecting oil circuit 10.

[0028] Since the first mounting block 4 close to the inner ends of the first slide 1 and the second slide 2 is filled with lubricating oil earlier than the second mounting block 6, the inner ends of the first slide 1 and the second slide 2, which are always located in the cylinder, first form a sealing oil film with the cylinder wall, and then a sealing oil film is formed between the outer ends of the first slide 1 and the second slide 2 and the cylinder wall. Since the first slide 1 and the second slide 2 need to make reciprocating motion, and the inner ends of the first slide 1 and the second slide 2 are located in the cylinder even when making reciprocating motion, the first slide 1 and the second slide 2 can quickly form a sealing oil film with the cylinder wall, and the lubricating oil spreads from front to back (i.e., from the inner end to the outer end), which can have a better sealing effect.

[0029] Since the first slide 1 and the second slide 2 need to reciprocate during operation, the lubricating oil in the second main oil circuit 13 may flow into the first main oil circuit 11 under the action of inertia, resulting in insufficient lubricating oil at the outer ends of the first slide 1 and the second slide 2. Therefore, in this embodiment, a one-way valve 12 is provided between the first main oil circuit 11 and the second main oil circuit 13 to solve the above problem.

[0030] In this embodiment, by providing multiple mounting blocks, in conjunction with corresponding main and connecting oil circuits, multiple oil seal lines can be formed, thereby enhancing leakage prevention capabilities. It should be noted that although this embodiment uses two mounting blocks and their corresponding main and connecting oil circuits as an example, the number of mounting blocks is not limited to two. Technical solutions based on the present invention and employing other numbers of mounting blocks should also be considered within the scope of protection of the present invention.

[0031] In this embodiment, the inner ends of the first and second slides 1 and 2 are detachably connected via an assembly member 3. Specifically, the assembly member 3 includes a U-shaped member 32, with a retaining block 31 provided on the inner sides of each arm of the U-shaped member 32. Retaining slots 9 are provided on the left and right symmetrical sides of the inner ends of each of the first and second slides 1 and 2, respectively. The retaining slots 9 on the same side of the inner ends of the first and second slides 1 and 2 are connected to form a connecting retaining slot. The U-shaped member 32 is clamped onto the inner ends of the first and second slides 1 and 2 via a U-shaped opening. The retaining blocks 31 on the inner sides of the two arms of the U-shaped member 32 are correspondingly inserted into the connecting retaining slots on both sides of the inner ends, and each retaining block 31 is loosely fitted into the corresponding connecting retaining slot.

[0032] The preferred embodiments of the present invention are described in detail above with reference to the accompanying drawings. The embodiments described in the present invention are merely descriptions of the preferred embodiments of the present invention and do not limit the concept and scope of the present invention. The various specific technical features described in the above specific embodiments can be combined in any suitable manner unless there is any contradiction. Such combinations should also be regarded as the contents disclosed in this disclosure as long as they do not violate the concept of the present invention. In order to avoid unnecessary repetition, the present invention will not further describe various possible combinations.

[0033] The present invention is not limited to the specific details of the above-mentioned embodiments. Within the scope of the technical concept of the present invention and without departing from the design concept of the present invention, various modifications and improvements made to the technical solution of the present invention by those skilled in the art should fall within the scope of protection of the present invention. The technical contents for which protection is sought in the present invention have been fully recorded in the claims.

Claims

1. A vane mechanism used in a rotary compressor, characterized in that: The invention comprises a first slide (1) and a second slide (2), wherein one side of the first slide (1) is fitted with one side of the second slide (2), and the first slide (1) and the second slide (2) are connected as one body, and one end of the first slide (1) and the second slide (2) in the same direction is always located in the cylinder, and the end of the first slide (1) and the second slide (2) that is always located in the cylinder is used as the inner end, and the other end of the first slide (1) and the second slide (2) in the same direction is used as the outer end; A first slide (1) is provided with a plurality of mounting blocks on a side that is in contact with the second slide (2), and each mounting block is distributed in a straight line from the inner end to the outer end of the first slide (1); a second slide (2) is provided with a plurality of mounting grooves on a side that is in contact with the first slide (1), and each mounting block is correspondingly inserted into the mounting groove, and each mounting block has a through cavity that passes through the mounting block; A main oil circuit and a connecting oil circuit are respectively provided inside the first slide (1) corresponding to each mounting block, and the main oil circuit corresponding to each mounting block is connected to one end of the through cavity in the corresponding mounting block through the connecting oil circuit; wherein the starting end of the main oil circuit corresponding to the mounting block closest to the inner end of the first slide (1) is arranged on a side of the first slide (1) facing away from the second slide (2) to form an oil inlet (8), and the ending end of the main oil circuit corresponding to the mounting block closest to the outer end of the first slide (1) is arranged on the outer end of the first slide (1) to form an oil outlet, and the main oil circuits of each mounting block are connected in series in sequence to form a series oil circuit.

2. The vane mechanism used in a rotary compressor according to claim 1, characterized in that: The first sliding plate (1) and the second sliding plate (2) are fixedly connected as one body by bolts.

3. The vane mechanism used in a rotary compressor according to claim 1, characterized in that: The inner ends of the first slide (1) and the second slide (2) are detachably connected via an assembly part (3).

4. The vane mechanism used in a rotary compressor according to claim 3, characterized in that: The assembly part (3) comprises a U-shaped part (32), and a clamping block (31) is respectively provided on the inner sides of the two arms of the U-shaped part (32); a clamping groove (9) is respectively provided on two symmetrical sides of the inner ends of the first slide (1) and the second slide (2), and the clamping grooves (9) on the same side of the inner ends of the first slide (1) and the second slide (2) are connected to form a connecting clamping groove; the U-shaped part (32) is clamped on the inner ends of the first slide (1) and the second slide (2) through the U-shaped mouth, and the clamping blocks (31) on the inner sides of the two arms of the U-shaped part (32) are correspondingly clamped into the connecting clamping grooves on both sides of the inner ends.

5. The vane mechanism used in a rotary compressor according to claim 4, characterized in that: Each card block (31) is clearance-matched with the corresponding communicating card slot.

6. The vane mechanism used in a rotary compressor according to claim 1, characterized in that: Inside the first slide (1), a one-way valve (12) is provided between the main oil circuit corresponding to the mounting block closest to the inner end of the first slide (1) and the adjacent next-level main oil circuit, and the end of the main oil circuit corresponding to the mounting block closest to the inner end of the first slide (1) is connected to the start of the adjacent next-level main oil circuit through the one-way valve (12).

7. The vane mechanism used in a rotary compressor according to claim 1, characterized in that: Inside the first slide (1), a one-way valve (12) is provided between each two adjacent main oil circuits in the series oil circuit. In each of the two adjacent main oil circuits, the end of the upper main oil circuit is connected to the beginning of the lower main oil circuit via the one-way valve (12).

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