Piston ring of piston type compressor

Abstract

The utility model relates to the technical field of piston type compressors, in particular to a piston ring of a piston type compressor, which comprises a piston main body, a piston ring main body, a mounting component, a base, an electric telescopic rod, a movable plate, a lifting component, a bidirectional adjusting screw rod, an arc-shaped pressing plate and an adjusting component, an electric telescopic rod is arranged in the middle of the upper surface of the base, a movable plate is arranged at one end of the electric telescopic rod, a lifting assembly is arranged on one side of the movable plate, and a two-way adjusting lead screw is arranged on the inner side of the movable plate. An arc-shaped pressing plate is arranged above the two-way adjusting lead screw, and an adjusting assembly is arranged on the outer side of the two-way adjusting lead screw. The piston ring is tightened and fixed according to the actual size of the piston in a press-fit fixing mode, piston expansion is avoided, the installation position of the piston is accurately positioned, efficient piston installation operation is guaranteed, and therefore the accuracy of piston assembly is effectively enhanced.

Description

Technical Field

[0001] This utility model relates to the field of piston compressor technology, and in particular to a piston ring for a piston compressor. Background Technology

[0002] Piston compressors are a common type of compressor, and piston rings are one of the most important components in piston compressors. Piston rings are installed on pistons, and when pistons move up and down in cylinders, piston rings fit tightly against cylinder walls to prevent compressed gas from leaking out of the gap between pistons and cylinder walls.

[0003] Due to tension, the piston rings of modern reciprocating compressors expand outward when assembled with the piston. During piston installation, the piston rings need to be squeezed to make them fit tightly against the piston, which makes the installation process inconvenient and makes it difficult to ensure accurate and efficient installation.

[0004] Therefore, to address the issue that piston rings in existing reciprocating compressors expand outwards during piston installation, affecting the normal and efficient assembly of the piston, a new piston ring design for reciprocating compressors can be developed. This design uses a compression-fixing method to tighten and fix the piston rings according to the actual size of the piston, preventing piston expansion, accurately positioning the piston installation location, ensuring efficient piston installation operations, and thus effectively enhancing the accuracy of piston assembly. Utility Model Content

[0005] To overcome the problem that the piston rings of most reciprocating compressors expand outward when assembled with the piston, the piston rings need to be squeezed to fit tightly against the piston during installation, making it difficult to ensure accurate and efficient installation.

[0006] The technical solution of this utility model is as follows: a piston ring for a piston compressor, comprising a piston body, a piston ring body, a mounting assembly, a base, an electric telescopic rod, a movable plate, a lifting assembly, a bidirectional adjusting screw, an arc-shaped pressure plate, and an adjusting assembly; the piston ring body is arranged on the outer side of the piston body, and two sets of piston ring bodies are arranged; the mounting assembly is arranged on one side of the piston ring body; the base is arranged below the piston body; the electric telescopic rod is arranged in the middle of the upper surface of the base; a movable plate is arranged at one end of the electric telescopic rod; a lifting assembly is arranged on one side of the movable plate; a bidirectional adjusting screw is arranged on the inner side of the movable plate; an arc-shaped pressure plate is arranged above the bidirectional adjusting screw, and two sets of arc-shaped pressure plates are symmetrically arranged; the adjusting assembly is arranged on the outer side of the bidirectional adjusting screw.

[0007] Preferably, the piston ring body is installed on the piston body using an installation assembly. The piston ring body ensures the sealing of the piston body. The piston body is placed above the movable plate. The adjustment assembly drives the bidirectional adjustment screw to rotate, adjusting the distance between the two sets of arc-shaped pressure plates, so that the arc-shaped pressure plates press the piston ring body tightly. Subsequently, the electric telescopic rod on the telescopic base adjusts the placement height of the movable plate. At the same time, the lifting assembly ensures the stable lifting and lowering of the movable plate, moving the piston body to the designated assembly position on the compressor. The piston body is then pushed into the assembly slot, thereby achieving the effect of tightening and fixing the piston ring according to the actual size of the piston, preventing piston expansion, accurately positioning the piston installation position, and ensuring efficient piston installation operations.

[0008] Preferably, the mounting assembly includes an annular groove and an open groove; the annular groove is provided on the outer side of the piston body, and the open groove is provided on one side of the piston ring body.

[0009] Preferably, two sets of ring grooves are provided, and the piston ring body and the ring grooves are interlocked. The piston ring body is a metal elastic ring.

[0010] Preferably, the lifting assembly includes a guide rail and a connecting plate; the upper surface of the base is provided with a guide rail, and one end of the guide rail is provided with a connecting plate.

[0011] Preferably, multiple sets of guide rails are provided, with the guide rails located at the four corners of the base. Two sets of guide rails are connected and fixed by a connecting plate, and the guide rails pass through the movable plate. The movable plate and the guide rails are slidably connected to each other.

[0012] Preferably, the adjustment assembly includes a groove, a motor, and a support rod; the upper surface of the movable plate has a groove, a motor is provided on one side of the movable plate, a support rod is provided on the outside of the bidirectional adjustment screw, and the other end of the support rod is fixedly connected to the arc-shaped pressure plate.

[0013] Preferably, two sets of grooves are symmetrically provided, and a bidirectional adjusting screw is provided on the inner side of the groove. The output end of the motor is connected to the bidirectional adjusting screw.

[0014] The beneficial effects of this utility model are:

[0015] 1. When installing the piston body, install the piston ring body on the piston body to ensure the piston body's sealing. Place the piston body above the movable plate and rotate the bidirectional adjusting screw to adjust the distance between the two sets of arc-shaped pressure plates, so that the arc-shaped pressure plates press the piston ring body tightly. Then, adjust the placement height of the movable plate with the electric telescopic rod on the telescopic base, move the piston body to the designated assembly position of the compressor, and push the piston body to send it into the assembly slot. This solves the problem that the piston rings of most reciprocating compressors expand outward during piston installation, affecting the normal and efficient assembly of the piston, and ensures efficient piston installation. Attached Figure Description

[0016] Figure 1 The diagram shown is a three-dimensional structural schematic of the piston ring of a piston compressor according to this utility model.

[0017] Figure 2 The diagram shown is a three-dimensional structural schematic of the piston ring body of a piston compressor according to this utility model.

[0018] Figure 3 The diagram shown is a three-dimensional structural schematic of the piston ring lifting assembly of a piston compressor according to this utility model.

[0019] Figure 4 The diagram shown is a three-dimensional structural schematic of the piston ring adjustment assembly of a piston compressor according to this utility model.

[0020] Explanation of reference numerals in the attached drawings: 1. Piston body; 2. Piston ring body; 201. Ring groove; 202. Opening groove; 3. Base; 4. Electric telescopic rod; 5. Movable plate; 501. Guide rail; 502. Connecting plate; 6. Two-way adjusting screw; 601. Arc-shaped pressure plate; 602. Groove; 603. Motor; 604. Support rod. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0022] Please see Figures 1-4 This utility model provides an embodiment: a piston ring for a piston compressor, comprising a piston body 1, a piston ring body 2, a mounting assembly, a base 3, an electric telescopic rod 4, a movable plate 5, a lifting assembly, a bidirectional adjusting screw 6, an arc-shaped pressure plate 601, and an adjusting assembly; the piston ring body 2 is arranged on the outer side of the piston body 1, and two sets of piston ring bodies 2 are arranged; the mounting assembly is arranged on one side of the piston ring body 2; the base 3 is arranged below the piston body 1; the electric telescopic rod 4 is arranged in the middle of the upper surface of the base 3; the movable plate 5 is arranged at one end of the electric telescopic rod 4; the lifting assembly is arranged on one side of the movable plate 5; the bidirectional adjusting screw 6 is arranged on the inner side of the movable plate 5; the arc-shaped pressure plate 601 is arranged above the bidirectional adjusting screw 6, and two sets of arc-shaped pressure plates 601 are symmetrically arranged; the adjusting assembly is arranged on the outer side of the bidirectional adjusting screw 6.

[0023] Please see Figures 1-2In this embodiment, the mounting assembly includes an annular groove 201 and an open groove 202. The annular groove 201 is provided on the outer side of the piston body 1. There are two sets of annular grooves 201. The piston ring body 2 is fitted into the annular groove 201. An open groove 202 is provided on one side of the piston ring body 2. The piston ring body 2 is a metal elastic ring. The annular groove 201 defines the installation position of the piston ring body 2. The open groove 202 facilitates the installation of the piston ring body 2. At the same time, the open groove 202 enhances the elasticity of the piston ring body 2, allowing the piston ring body 2 to expand inside the compressor and ensuring the sealing of the piston body 1.

[0024] Please see Figures 3-4 In this embodiment, the lifting assembly includes a guide rail 501 and a connecting plate 502; the upper surface of the base 3 is provided with guide rails 501, and multiple sets of guide rails 501 are provided. The guide rails 501 are located at the four corners of the base 3. One end of the guide rail 501 is provided with a connecting plate 502, which connects and fixes two sets of guide rails 501. The guide rails 501 pass through the movable plate 5, and the movable plate 5 and the guide rails 501 are slidably connected to each other. The lifting path of the movable plate 5 is defined by the guide rails 501, and the connecting plate 502 is used to connect and fix the guide rails 501 to ensure the stable lifting of the movable plate 5; the adjusting assembly includes a groove 602, a motor 603, and a support rod 604; the upper surface of the movable plate 5 is open A groove 602 is provided, with two sets of grooves symmetrically arranged. A bidirectional adjusting screw 6 is provided on the inner side of the groove 602. A motor 603 is provided on one side of the movable plate 5. The output end of the motor 603 is connected to the bidirectional adjusting screw 6. A support rod 604 is provided on the outer side of the bidirectional adjusting screw 6. The other end of the support rod 604 is fixedly connected to the arc-shaped pressure plate 601. The position of the bidirectional adjusting screw 6 is fixed by the groove 602. The motor 603 drives the bidirectional adjusting screw 6 to rotate. Rotating the bidirectional adjusting screw 6 adjusts the distance between the two sets of support rods 604, thereby driving the arc-shaped pressure plate 601 to press and fix the piston ring body 2 according to the actual size of the piston body 1.

[0025] When assembling the piston ring body 2, the piston ring body 2 is opened by the opening groove 202, and the two sets of piston ring bodies 2 are sequentially embedded into the ring groove 201 of the piston body 1.

[0026] When installing the piston body 1, place the piston body 1 above the movable plate 5. The motor 603 drives the bidirectional adjusting screw 6 in the groove 602 to rotate. Rotating the bidirectional adjusting screw 6 flexibly adjusts the spacing of the arc-shaped pressure plate 601 on the support rod 604, so that the arc-shaped pressure plate 601 presses the piston ring body 2 into the ring groove 201.

[0027] Subsequently, the electric telescopic rod 4 on the telescopic base 3 adjusts the placement height of the movable plate 5, causing the movable plate 5 to rise and fall along the guide rail 501. At the same time, the connecting plate 502 connects to the fixed guide rail 501, moving the piston body 1 to the designated assembly position of the compressor, pushing the piston body 1 to be sent into the assembly slot. After entering the compressor, the piston ring body 2 expands under tension.

[0028] Through the above steps, the piston ring body 2 is installed on the piston body 1 by setting the installation component. The piston ring body 2 ensures the sealing of the piston body 1. The piston body 1 is placed above the movable plate 5. The bidirectional adjusting screw 6 is rotated by the adjusting component. Rotating the bidirectional adjusting screw 6 adjusts the distance between the two sets of arc-shaped pressure plates 601, so that the arc-shaped pressure plates 601 press the piston ring body 2 tightly. Subsequently, the electric telescopic rod 4 on the telescopic base 3 adjusts the placement height of the movable plate 5. At the same time, the lifting component ensures the stable lifting and lowering of the movable plate 5, moving the piston body 1 to the designated assembly position of the compressor. The piston body 1 is pushed and sent into the assembly slot, thereby tightening and fixing the piston ring according to the actual size of the piston, avoiding piston expansion, and accurately positioning the piston installation position.

[0029] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A piston ring for a reciprocating compressor, comprising a piston body (1); characterized in that: It also includes a piston ring body (2), a mounting assembly, a base (3), an electric telescopic rod (4), a movable plate (5), a lifting assembly, a bidirectional adjusting screw (6), an arc-shaped pressure plate (601), and an adjusting assembly; the piston ring body (2) is provided on the outside of the piston body (1), and there are two sets of piston ring bodies (2). The mounting assembly is provided on one side of the piston ring body (2), and the base (3) is provided below the piston body (1). The electric telescopic rod (4) is provided in the middle of the upper surface of the base (3). The movable plate (5) is provided at one end of the electric telescopic rod (4). The lifting assembly is provided on one side of the movable plate (5). The bidirectional adjusting screw (6) is provided on the inside of the movable plate (5). The arc-shaped pressure plate (601) is provided above the bidirectional adjusting screw (6). There are two sets of arc-shaped pressure plates (601). The adjusting assembly is provided on the outside of the bidirectional adjusting screw (6); the mounting assembly includes a ring groove (201) and an opening groove (202); the piston body (1) An annular groove (201) is provided on the outer side of the piston ring body (2), and an opening groove (202) is provided on one side of the piston ring body (2); the lifting assembly includes a guide rail (501) and a connecting plate (502); a guide rail (501) is provided on the upper surface of the base (3), and a connecting plate (502) is provided at one end of the guide rail (501); multiple sets of guide rails (501) are provided, and the guide rails (501) are located at the four corners of the base (3), and the connecting plate (502) connects and fixes two sets of guide rails (501). 501) passes through the movable plate (5), and the movable plate (5) and the guide rail (501) are slidably connected to each other; the adjustment component includes a groove (602), a motor (603) and a support rod (604); the upper surface of the movable plate (5) is provided with a groove (602), a motor (603) is provided on one side of the movable plate (5), a support rod (604) is provided on the outside of the bidirectional adjustment screw (6), and the other end of the support rod (604) is fixedly connected to the arc-shaped pressure plate (601).

2. The piston ring of a piston compressor according to claim 1, characterized in that: Two sets of ring grooves (201) are provided, and the piston ring body (2) and the ring groove (201) are interlocked. The piston ring body (2) is a metal elastic ring.

3. The piston ring of a piston compressor according to claim 1, characterized in that: Two sets of grooves (602) are symmetrically provided. A bidirectional adjusting screw (6) is provided on the inner side of the groove (602). The output end of the motor (603) is connected to the bidirectional adjusting screw (6).

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