Scroll compressor

Abstract

The utility model relates to a compressor technical field, specifically disclose a scroll compressor, the scroll compressor includes main bearing seat and static scroll disc and at least two locating pins and fastening assembly, and one end of locating pin is inserted with main bearing seat and is fixed, and the other end of locating pin is inserted with static scroll disc and can slide relatively. Fastening assembly includes pin sleeve and bolt, pin sleeve is inserted with static scroll disc, and bolt is arranged in pin sleeve and tail portion of bolt is connected with main bearing seat threadedly, and the head portion of bolt abuts on the upper end surface of pin sleeve, and locating pin and fastening assembly cooperate, reduce the parallelism requirement between locating pin after installation, and small gap insertion fit can be used between locating pin and static scroll disc, guarantee the positioning accuracy, the threaded hole of normal precision is set up on main bearing seat, and the fixed need of bolt to pin sleeve can be satisfied, reduce the high-precision machining demand of threaded hole on main bearing seat, and assembly is simple, and the manufacturing cost of main bearing seat is reduced.

Description

Technical Field

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

[0002] In scroll compressors, to ensure stable operation of the entire unit, it is necessary to design the stationary scroll plate for positioning and to prevent it from rotating on its own.

[0003] In related technologies, four locating pins are typically used to circumferentially position the stationary scroll plate and prevent its rotation. The pins have a clearance fit with the pin holes of the stationary scroll plate, while they have an interference fit with the pin holes of the main bearing housing. The axes of the four locating pins need to maintain a high degree of parallelism for the stationary scroll plate to be installed. After installation, if there is a deviation in the parallelism between the axes of any two locating pins, the stationary scroll plate will be difficult to align synchronously with the four locating pins or may jam midway, making installation inconvenient. If the clearance between the locating pins and the pin holes of the stationary scroll plate is designed to be small, it will increase the dimensional and positional tolerance requirements of the pin holes on the main bearing housing, leading to increased machining difficulty and a corresponding increase in the manufacturing cost of the main bearing housing. Utility Model Content

[0004] The purpose of this utility model is to provide a scroll compressor to solve the problems in related technologies where the stationary scroll plate is positioned and prevented from rotating by four locating pins, which requires high precision machining of the mounting holes on the main bearing housing and is inconvenient to assemble.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] This utility model provides a scroll compressor, which includes a main bearing housing and a stationary scroll disk. The main bearing housing supports the stationary scroll disk. The scroll compressor also includes:

[0007] At least two locating pins, one end of which is inserted and fixed to the main bearing seat, and the other end of which is inserted and can slide relative to the stationary scroll plate;

[0008] A fastening assembly, comprising at least two locating pins arranged circumferentially on the main bearing housing, the fastening assembly including a pin sleeve and a bolt, the pin sleeve being inserted into the stationary scroll plate, the bolt passing through the pin sleeve with its tail threaded to the main bearing housing, and the head of the bolt abutting against the upper end face of the pin sleeve, the stationary scroll plate being axially slidable along the locating pins and the pin sleeve, and the head of the bolt being used to axially limit the stationary scroll plate.

[0009] In one embodiment, the head of the bolt is spaced axially from the main bearing seat, the outer periphery of the stationary vortex disk has a positioning portion, the pin sleeve is inserted into the positioning portion, the positioning portion can slide along the axial direction of the pin sleeve, and the positioning portion is slidably disposed between the head of the bolt and the main bearing seat.

[0010] In one embodiment, a limiting portion is provided on the outer periphery of the pin sleeve, the limiting portion is spaced apart from the main bearing seat in the axial direction, and the limiting portion abuts against the head of the bolt, and the positioning portion is slidably disposed between the limiting portion and the main bearing seat.

[0011] In one embodiment, the limiting portion is an annular flange, and the head of the bolt abuts against the annular flange.

[0012] In one embodiment, the locating pins are arranged in pairs and at least one pair is provided, with the two locating pins in each pair being symmetrically arranged about the axis of the main bearing housing.

[0013] In one embodiment, the fastening components are arranged in pairs and at least one pair is provided, with the two fastening components in each pair being symmetrically arranged about the axis of the main bearing housing.

[0014] In one embodiment, at least two of the locating pins and at least two of the fastening components are located on the same circle of the cross section, and the center of the circle is located on the axis of the main bearing housing.

[0015] In one embodiment, at least one of the fastening components is provided between any two adjacent locating pins.

[0016] In one embodiment, the bolt and the pin sleeve are either a clearance fit or an elastic interference fit.

[0017] In one embodiment, the pin sleeve and the stationary vortex disk are fitted together with a clearance.

[0018] The beneficial effects of this utility model are as follows:

[0019] This utility model provides a scroll compressor. The scroll compressor utilizes a combination of locating pins and fastening components. When the stationary scroll plate is installed with the main bearing housing, at least two locating pins are fixedly mounted on the main bearing housing, allowing the stationary scroll plate to be inserted for circumferential positioning. Pin sleeves are inserted into the stationary scroll plate and fixed to the main bearing housing with bolts, providing auxiliary support for the stationary scroll plate, distributing the load, and reducing wear on a single mating surface. Specifically, multiple connection points between the stationary scroll plate and the main bearing housing utilize locating pins for some connections and fastening components for others. When the total number of mounting parts required between the stationary scroll plate and the main bearing housing is the same, the number of locating pins is reduced. For example, when the total number of mounting parts required between the stationary scroll plate and the main bearing housing is four, the number of locating pins can be two or three, with the remainder using fastening components. After the locating pins are installed with the main bearing housing, the overall load on the compressor is reduced. The parallelism requirement between the axes of the positioning pins is met. The positioning pins and the stationary scroll can be fitted with a small gap to ensure positioning accuracy. During the bolt tightening process, the pin sleeve can automatically adjust and align. The bolt fixing requirement of the pin sleeve can be met by opening a threaded hole of conventional precision on the main bearing housing. This reduces the high-precision machining requirement of the threaded hole on the main bearing housing, reduces the use of additional positioning fixtures, simplifies the assembly process, and reduces the manufacturing cost of the main bearing housing. Moreover, the fastening component assists in positioning the stationary scroll, reducing the possibility of excessive lateral shaking of the stationary scroll or excessive concentration of load and stress that could easily damage it due to the reduced number of positioning pins. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the connection structure between the positioning pin and the main bearing seat in an embodiment of this utility model;

[0021] Figure 2 This is an exploded view of the stationary vortex disk, main bearing housing, and fastening assembly in an embodiment of this utility model.

[0022] In the picture:

[0023] 1. Main bearing housing;

[0024] 2. Static vortex disk; 21. Positioning unit;

[0025] 3. Positioning pin;

[0026] 4. Fastening components; 41. Pin sleeve; 411. Limiting part; 42. Bolt. Detailed Implementation

[0027] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0028] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0029] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0030] In the description of this embodiment, the terms "upper," "lower," "left," and "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0031] like Figures 1 to 2 As shown, an embodiment of this utility model provides a scroll compressor, which includes a main bearing housing 1 and a stationary scroll disk 2. The main bearing housing 1 supports the stationary scroll disk 2. The scroll compressor also includes at least two locating pins 3 and a fastening assembly 4. One end of the locating pin 3 is inserted into the main bearing housing 1 and the position of the locating pin 3 relative to the main bearing housing 1 is fixed. The other end of the locating pin 3 is inserted into the stationary scroll disk 2 and the locating pin 3 and the stationary scroll disk 2 can slide relative to each other. The fastening assembly 4 and at least two locating pins 3 are arranged circumferentially on the main bearing housing 1. The fastening assembly 4 includes a pin sleeve 41 and a bolt 42. The pin sleeve 41 is inserted into the stationary scroll disk 2. The bolt 42 passes through the pin sleeve 41 and the tail of the bolt 42 is threaded to the main bearing housing 1. The head of the bolt 42 abuts against the upper end face of the pin sleeve 41. The stationary scroll disk 2 can slide axially along the locating pins 3 and the pin sleeve 41, and the head of the bolt 42 is used to axially limit the stationary scroll disk 2.

[0032] With this configuration, when the stationary scroll 2 is installed with the main bearing housing 1, the positioning pin 3 is inserted and fixed on the main bearing housing 1, allowing the stationary scroll 2 to be inserted for positioning. The pin sleeve 41 is inserted into the stationary scroll 2 and fixed to the main bearing housing 1 by bolts 42. The pin sleeve 41 provides auxiliary support for the stationary scroll 2, shares the load, and reduces wear on a single mating surface. In other words, at multiple connection points between the stationary scroll 2 and the main bearing housing 1, some connections are made using positioning pins 3, while others are made using fastening components 4. Given the same total number of mounting components required between the stationary scroll 2 and the main bearing housing 1, the number of positioning pins 3 is reduced in this embodiment. For example, when the total number of mounting components required between the stationary scroll 2 and the main bearing housing 1 is four, the number of positioning pins 3 can be two or three, with the remainder using fastening components 4. After the positioning pins are installed with the main bearing housing, the requirement for the parallelism of the axes between the overall positioning pins 3 can be reduced. The scroll plates 2 can be fitted with a small gap to ensure positioning accuracy. During the tightening of the bolts 42, the pin sleeves 41 can automatically adjust and align. The threaded holes with conventional precision on the main bearing housing 1 are sufficient to meet the fixing requirements of the bolts 42 to the pin sleeves 41. This reduces the high-precision machining requirements of the threaded holes on the main bearing housing 1, reduces the use of additional positioning fixtures, simplifies the assembly process, and reduces the manufacturing cost of the main bearing housing 1. Moreover, the fastening component 4 assists in positioning the stationary scroll plates 2, reducing the possibility of excessive lateral shaking of the stationary scroll plates 2 or excessive concentration of load and stress that could easily damage them due to the reduced number of positioning pins 3. This solves the problem in related technologies where the stationary scroll plates are positioned and prevented from rotating by four positioning pins, which requires high machining accuracy of the mounting holes on the main bearing housing and is inconvenient to assemble.

[0033] Optionally, the fixed connection between the locating pin 3 and the main bearing housing 1 can be, but is not limited to, an interference fit or welding, as long as the position of the locating pin 3 and the main bearing housing 1 is fixed, so as to facilitate the positioning for the installation of the stationary scroll plate 2.

[0034] In this embodiment, the pin sleeve 41 is inserted into the stationary scroll plate 2. The stationary scroll plate 2 can slide axially along the positioning pin 3 and the pin sleeve 41. This means that the stationary scroll plate 2 is provided with an installation hole. The pin sleeve 41 is inserted into and passes through the installation hole and abuts against the main bearing seat 1. The pin sleeve 41 is mainly fixed axially by the threaded connection between the bolt 42 and the main bearing seat 1.

[0035] In some embodiments, the head of the bolt 42 is spaced apart from the main bearing seat 1 in the axial direction. The outer periphery of the stationary vortex disk 2 has a positioning part 21. The pin sleeve 41 is inserted into the positioning part 21. The positioning part 21 can slide along the axial direction of the pin sleeve 41. The positioning part 21 is slidably disposed between the head of the bolt 42 and the main bearing seat 1. That is, the positioning part 21 slides between the head of the bolt 42 and the main bearing seat 1 to adjust its position, thereby reducing the direct transmission of vibration energy to the bolt 42 or the positioning pin 3. The head of the bolt 42 is limited to prevent the axial movement of the stationary vortex disk 2 from exceeding the limit due to vibration, thereby improving long-term reliability. Moreover, the bolt 42 is easy to disassemble. After disassembling the bolt 42, the positioning part 21 can be easily removed along the axial direction, making the operation convenient.

[0036] In this embodiment, the positioning part 21 can be a flange disposed on the outer periphery of the disk body of the stationary vortex disk 2. The flange can be a continuous ring flange or a spaced-apart split flange. The sum of the number of positioning pins 3 and fastening components 4 can be the same as the number of split flanges and their positions can correspond one-to-one. The pin sleeves 41 of the positioning pins 3 and fastening components 4 can be inserted into the split flanges one-to-one.

[0037] like Figures 1 to 2 As shown, in some embodiments, a limiting part 411 is provided on the outer periphery of the pin sleeve 41. The limiting part 411 is spaced apart from the main bearing seat 1 in the axial direction, and the limiting part 411 abuts against the head of the bolt 42. The positioning part 21 is slidably disposed between the limiting part 411 and the main bearing seat 1. That is, on the basis of ensuring that the head of the bolt 42 limits the positioning part 21, the outer periphery of the pin sleeve 41 can also be provided with a limiting part 411 to limit the positioning part 21, which reduces the direct impact of the axial movement of the positioning part 21 on the bolt 42, reduces the possibility of damage to the bolt 42 structure or loosening under force, and improves the stability of the fastening assembly 4 supporting the stationary volute 2.

[0038] Optionally, the limiting part 411 may be, but is not limited to, an annular flange or protrusions spaced circumferentially along the pin sleeve 41, as long as it meets the limiting requirements. The preset distance between the head of the bolt 42 and the main bearing seat 1 in the axial direction may be the same as or different from the preset distance between the limiting part 411 and the main bearing seat 1 in the axial direction, as long as it meets the axial sliding requirements of the stationary vortex disk 2.

[0039] In some embodiments, the limiting part 411 is an annular flange, and the head of the bolt 42 abuts against the annular flange. The limiting part 411 can not only provide a larger axial adjustment distance for the positioning part 21, but also abut against the head of the bolt 42, increasing the contact area between the end of the pin sleeve 41 and the head of the bolt 42, which facilitates strengthening the locking force of the bolt 42 on the pin sleeve 41 and reducing the relative rotation between the bolt 42 and the pin sleeve 41.

[0040] In some embodiments, the locating pins 3 are arranged in groups of two, and at least one group is provided. The two locating pins 3 in each group are symmetrically arranged about the axis of the main bearing housing 1. The symmetrical arrangement of the locating pins 3 in groups can ensure that the stationary scroll plate 2 is subjected to uniform force, avoiding uneven load caused by uneven force on one side. Moreover, the central symmetry of the two locating pins 3 in each group can form a force couple balance, effectively resisting circumferential torque, preventing the stationary scroll plate 2 from rotating, and maintaining stable positioning. Furthermore, the load can be distributed to multiple locating pins 3, reducing the contact stress at individual locating pins 3, reducing wear, and extending service life.

[0041] like Figures 1 to 2 As shown, in some embodiments, the fastening components 4 are arranged in groups of two, and at least one group is provided. The two fastening components 4 in each group are symmetrically arranged about the axis of the main bearing housing 1. The symmetrical arrangement of the fastening components 4 in groups can also make the static scroll 2 evenly stressed, avoiding uneven load caused by uneven stress on one side. The fastening components 4 serve as auxiliary radial positioning, forming multi-point constraints with the positioning pins 3. The symmetrical arrangement in groups can also improve the centering. The central symmetry of the two fastening components 4 in each group can form a force couple balance, effectively resisting circumferential torque, preventing the static scroll 2 from rotating, and maintaining stable positioning. Moreover, the load can be distributed to multiple fastening components 4, reducing the contact stress at a single fastening component 4, avoiding local overload of the pin sleeve 41 and bolt 42, reducing wear, and extending service life.

[0042] Optionally, a set of positioning pins 3 and a set of fastening components 4 are provided. While ensuring the positioning accuracy of the stationary scroll plate 2 and the main bearing housing 1, the redundancy of positioning pins 3 and fasteners is reduced, which further reduces the requirements for machining accuracy and the complexity of assembly process, and also reduces the impact on the structural strength of the main bearing housing 1 and the stationary scroll plate 2.

[0043] In some embodiments, at least two locating pins 3 and at least two fastening components 4 are located on the same circle of the cross section, and the center of the circle is located on the axis of the main bearing housing 1. The machining reference of the mounting pin hole corresponding to the locating pin 3 and the mounting hole corresponding to the fastening component 4 can be unified with the axis of the main bearing housing 1, reducing machining errors. Moreover, the locating pin 3 and the fastening component 4 are located on the same radial dimension, the torque distribution is uniform, local off-center load is reduced, and the center alignment accuracy between the static scroll 2 and the main bearing housing 1 is effectively improved.

[0044] In some embodiments, at least one fastening component 4 is provided between any two adjacent locating pins 3, that is, the locating pins 3 and the fastening components 4 can be staggered. The fastening components 4 of two adjacent locating pins 3 can allow a certain degree of regional differential deformation, reduce the jamming caused by stress concentration, and the fit error of a single locating pin 3 can be compensated by the adjacent fastening components 4, which reduces the form and position tolerance requirements of the pin holes on the main bearing housing 1, thereby reducing the machining difficulty and manufacturing cost.

[0045] Optionally, a set of positioning pins 3 and a set of fastening components 4 are provided, and a fastening component 4 is provided between any two adjacent positioning pins 3, which can further reduce machining difficulty and manufacturing cost while meeting positioning requirements.

[0046] In some embodiments, the connection between the bolt 42 and the pin sleeve 41 may be, but is not limited to, clearance fit or elastic interference fit, both of which can provide a certain radial range of movement between the bolt 42 and the pin sleeve 41.

[0047] Optionally, the bolt 42 and the pin sleeve 41 are fitted with a clearance fit, that is, there is a gap between the outer wall of the bolt 42 and the inner wall of the pin sleeve 41. This not only facilitates the smooth insertion and installation of the bolt 42, but also allows the bolt 42 to be flexibly adjusted radially within the pin sleeve 41, making installation convenient.

[0048] Optionally, the bolt 42 and the pin sleeve 41 are elastically interference-fitted, meaning that at least the inner wall of the pin sleeve 41 that contacts the bolt 42 is elastic. For example, the pin sleeve 41 may be provided with an elastic coating or an elastic bushing. After the bolt 42 is inserted into the pin sleeve 41, it can elastically abut against the inner wall of the pin sleeve 41. This not only allows the bolt 42 to have a certain radial adjustment range within the pin sleeve 41, but also allows the bolt 42 and the pin sleeve 41 to have an elastic centering force, preventing excessive offset between the pin sleeve 41 and the bolt 42.

[0049] In some embodiments, the positioning pin 3 and the main bearing housing 1 are connected by an interference fit, which ensures the positioning accuracy of the positioning pin 3 on the main bearing housing 1 and facilitates the installation of the positioning pin 3. The positioning pin 3 and the stationary scroll plate 2 are connected by a clearance fit, which allows a certain radial clearance between the stationary scroll plate 2 and the positioning pin 3, allows the stationary scroll plate 2 to self-align and compensate for assembly errors, and also facilitates the smooth installation of the stationary scroll plate 2 at the positioning pin 3.

[0050] In some embodiments, the pin sleeve 41 and the stationary scroll plate 2 are fitted together with a clearance, which allows for a certain radial clearance between the stationary scroll plate 2 and the pin sleeve 41. This allows the stationary scroll plate 2 to self-align and compensate for assembly errors, and also facilitates the smooth installation of the pin sleeve 41 on the stationary scroll plate 2.

[0051] In summary, when installing the scroll compressor in any of the above embodiments, the installation method of the scroll compressor may specifically include:

[0052] Step S1: Insert and fix at least two locating pins 3 onto the main bearing seat 1, and insert the stationary scroll 2 onto the locating pins 3;

[0053] Step S2: Insert the pin sleeve 41 of the fastening component 4 into the stationary scroll plate 2;

[0054] Step S3: Insert the bolt 42 of the fastening assembly 4 into the pin sleeve 41, and thread the tail of the bolt 42 to the main bearing seat 1, with the head of the bolt 42 abutting against the upper end face of the pin sleeve 41.

[0055] In this embodiment, the positioning pin 3 is first inserted and fixed on the main bearing housing 1, allowing the stationary scroll plate 2 to be inserted for positioning. The positioning pin 3 and the stationary scroll plate 2 can be fitted with a small gap to ensure positioning accuracy. Then, the stationary scroll plate 2 can be auxiliary supported by the installation pin sleeve 41 and bolt 42 to share the load and limit the axial sliding of the stationary scroll plate 2. This reduces the high-precision machining requirements of the threaded holes on the main bearing housing 1, reduces the use of additional positioning fixtures, simplifies the assembly process, and reduces the manufacturing cost of the main bearing housing 1.

[0056] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A scroll compressor, the scroll compressor comprising a main bearing housing (1) and a stationary scroll disk (2), the main bearing housing (1) for supporting the stationary scroll disk (2), characterized in that, The scroll compressor also includes: At least two locating pins (3), one end of which is inserted and fixed to the main bearing seat (1), and the other end of which is inserted and can slide relative to the stationary scroll plate (2); A fastening assembly (4) and at least two positioning pins (3) are arranged circumferentially on the main bearing housing (1). The fastening assembly (4) includes a pin sleeve (41) and a bolt (42). The pin sleeve (41) is inserted into the stationary scroll plate (2). The bolt (42) passes through the pin sleeve (41) and the tail of the bolt (42) is threaded to the main bearing housing (1). The head of the bolt (42) abuts against the upper end face of the pin sleeve (41). The stationary scroll plate (2) can slide axially along the positioning pins (3) and the pin sleeve (41). The head of the bolt (42) is used to axially limit the stationary scroll plate (2).

2. The scroll compressor according to claim 1, characterized in that, The head of the bolt (42) is spaced apart from the main bearing seat (1) in the axial direction. The outer periphery of the stationary vortex disk (2) has a positioning part (21). The pin sleeve (41) is inserted into the positioning part (21). The positioning part (21) can slide along the axial direction of the pin sleeve (41). The positioning part (21) is slidably disposed between the head of the bolt (42) and the main bearing seat (1).

3. The scroll compressor according to claim 2, characterized in that, The outer periphery of the pin sleeve (41) is provided with a limiting part (411), the limiting part (411) is spaced apart from the main bearing seat (1) in the axial direction, the limiting part (411) abuts against the head of the bolt (42), and the positioning part (21) is slidably disposed between the limiting part (411) and the main bearing seat (1).

4. The scroll compressor according to claim 3, characterized in that, The limiting part (411) is an annular flange, and the head of the bolt (42) abuts against the annular flange.

5. The scroll compressor according to any one of claims 1-4, characterized in that, The positioning pins (3) are arranged in pairs and at least one pair is provided. The two positioning pins (3) in each pair are symmetrically arranged about the axis of the main bearing seat (1).

6. The scroll compressor according to any one of claims 1-4, characterized in that, The fastening components (4) are arranged in pairs and at least one pair is provided. The two fastening components (4) in each pair are symmetrically arranged about the axis of the main bearing housing (1).

7. The scroll compressor according to any one of claims 1-4, characterized in that, At least two of the locating pins (3) and the fastening assembly (4) are located on the same circle of the cross section, and the center of the circle is located on the axis of the main bearing housing (1).

8. The scroll compressor according to claim 7, characterized in that, At least one fastening component (4) is provided between any two adjacent positioning pins (3).

9. The scroll compressor according to any one of claims 1-4, characterized in that, The bolt (42) and the pin sleeve (41) are either a clearance fit or an elastic interference fit.

10. The scroll compressor according to any one of claims 1-4, characterized in that, The pin sleeve (41) and the stationary vortex disk (2) are connected by a clearance fit.

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