Counterweight and compressor
By designing an adjustable center of mass balance block in the compressor, the problem of inconsistent vibration and noise caused by part machining errors and assembly differences is solved, thereby reducing the consistency of compressor vibration and noise and improving the versatility of the balance block.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD
- Filing Date
- 2025-06-30
- Publication Date
- 2026-07-10
AI Technical Summary
Existing compressors suffer from inconsistent vibration and noise due to machining errors and assembly differences in parts, and the balance block parts have low versatility and high cost.
Design an adjustable center of mass balance block. Adjust the position of the slider in the slider groove by adjusting the adjustment component and fastener to counteract unbalanced forces and torques, achieve optimal vibration and noise conditions, and improve versatility.
This achieves consistent reduction in compressor vibration and noise, lowers costs, and improves the versatility of the balance block.
Smart Images
Figure CN224479247U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of compressor technology, for example to a balance block and a compressor. Background Technology
[0002] Because of the presence of a crankshaft, compressors generate unbalanced forces and torques during rotation, resulting in significant vibration and noise. To reduce these noises, balance weights are typically placed at the top and bottom of the rotor to counteract the unbalanced forces and torques generated by the crankshaft rotation. However, variations in parts manufacturing and assembly, such as misalignment or eccentric assembly clearances, can lead to excessively high compressor vibration and noise.
[0003] The related technology discloses a balance block. By designing and installing balance blocks at the upper and lower ends of the rotor, the unbalanced force and torque generated by the crankshaft rotation system of the compressor can be counteracted, thereby reducing the vibration and noise of the compressor.
[0004] In the process of implementing the embodiments of this disclosure, at least the following problems were found in the related art:
[0005] Due to inherent machining errors and assembly variations in parts, each compressor cannot achieve its theoretically optimal vibration and noise performance, and the vibration and noise characteristics of each compressor differ, resulting in poor consistency. Furthermore, the balance block needs to be redesigned for different compressor models, leading to low parts interchangeability and high costs.
[0006] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this application, and therefore may include information that does not constitute prior art known to those skilled in the art. Utility Model Content
[0007] To provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. This summary is not intended as a general commentary, nor is it intended to identify key / important components or describe the scope of protection of these embodiments, but rather as a prelude to the detailed description that follows.
[0008] This disclosure provides a balance block and a compressor to improve the versatility of parts and reduce costs.
[0009] This disclosure provides a balance block, comprising: a balance block body having a slider groove and an adjustment hole, the adjustment hole penetrating the groove wall of the slider groove; a slider movably located within the slider groove, the adjustment hole communicating with the slider; an adjustment member passing through the adjustment hole and connected to the slider, the adjustment member driving the slider to move within the slider groove to adjust the position of the slider within the slider groove; and a fastener movably located within the slider groove, the fastener fixing the slider when the slider moves to a set position.
[0010] In some optional embodiments, the slider is provided with a connecting hole, which corresponds to and communicates with the adjustment hole. The adjustment member passes through the adjustment hole and is inserted into the connecting hole, and the connecting hole is threadedly connected to the adjustment member. The adjustment member includes an adjustment cap, the cross-sectional area of which is larger than the cross-sectional area of the adjustment hole. When the slider moves to the set position, the adjustment cap can abut against the end face of the adjustment hole away from the slider groove to restrict the slider from moving away from the adjustment hole.
[0011] In some optional embodiments, the balance block body is also provided with a support hole that penetrates the groove wall of the slider groove. The support hole and the adjustment hole are on the same side of the slider groove. The fastener can pass through the support hole and extend into the slider groove. When the slider moves to the set position, the fastener can abut against the end face of the slider facing the support hole to restrict the slider from moving towards the support hole.
[0012] In some alternative embodiments, the adjustment hole extends along the height direction of the balance block body, and the adjustment member can drive the slider to move along the height direction of the balance block body to adjust the position of the slider in the slider groove.
[0013] In some alternative embodiments, in the height direction of the balance block, the height of the slider groove is greater than the height of the slider; wherein the difference between the height of the slider groove and the height of the slider is greater than or equal to 0.5 mm and less than or equal to 15 mm, or the difference between the height of the slider groove and the height of the slider is greater than or equal to 0.5 mm and less than or equal to 10 mm, or the difference between the height of the slider groove and the height of the slider is greater than or equal to 1 mm and less than or equal to 5 mm; and / or, the support hole extends along the height direction of the balance block body, and the support hole is located on at least one side of the adjustment hole circumferentially.
[0014] In some alternative embodiments, the adjustment hole extends radially along the balance block body, and the adjustment member can drive the slider to move radially along the balance block body to adjust the position of the slider in the slider groove.
[0015] In some alternative embodiments, along the radial direction of the balance block body, the width of the slider groove is greater than or equal to the width of the slider; when the slider moves to the first position, the slider abuts against the outer wall of the slider groove; when the slider moves to the second position, the slider abuts against the inner wall of the slider groove; and / or, along the height direction of the balance block body, the height of the slider groove is greater than or equal to the height of the slider; the difference between the height of the slider groove and the height of the slider is greater than or equal to 0 and less than or equal to 5 mm.
[0016] In some alternative embodiments, the support hole extends radially along the balance block and is located on at least one side of the adjustment hole circumferentially; and / or, a countersunk hole is provided at the end of the support hole away from the slider groove, the outer end of the countersunk hole is located on the outer peripheral wall of the balance block body, and the cross-sectional area of the countersunk hole is larger than the cross-sectional area of the support hole; the fastener includes a fastening post and a fastening cap connected to each other, the fastening post is movably located in the support hole, the fastening cap is movably located in the countersunk hole, and the cross-sectional area of the fastening cap is larger than the cross-sectional area of the support hole; wherein, along the radial direction of the balance block body, the difference between the width of the countersunk hole and the width of the fastening cap is greater than the difference between the width of the slider groove and the width of the slider.
[0017] In some alternative embodiments, the balance block body is also provided with rivet holes located outside the slider groove, which are used for connection with the rotor.
[0018] In some alternative embodiments, the balance block body is also provided with rivet holes located outside the slider groove, which are used for connection with the rotor.
[0019] This disclosure also provides a compressor, which includes the balance block described in any of the above embodiments.
[0020] The balance block and compressor provided in this disclosure can achieve the following technical effects:
[0021] In this embodiment, the adjusting component can drive the slider to adjust its position in the slider groove, that is, adjust the position of the slider relative to the main body of the balance block, thereby adjusting the center of gravity position of the balance block. Fasteners then limit and fix the slider, preventing it from moving. This counteracts unbalanced forces and torques caused by differences in part processing and assembly, allowing the compressor to reach its theoretically optimal vibration and noise state, reducing compressor vibration and noise, improving the consistency of compressor vibration and noise, and lowering overall noise levels. Furthermore, due to the adjustability of the balance block's center of gravity, compressors with similar crankshaft designs can use the same balance block; only the center of gravity needs adjustment, improving part versatility and reducing costs.
[0022] The above general description and the description below are exemplary and illustrative only and are not intended to limit this application. Attached Figure Description
[0023] One or more embodiments are illustrated by way of example with reference to the accompanying drawings. These illustrations and drawings do not constitute a limitation on the embodiments. Elements having the same reference numerals in the drawings are shown as similar elements. The drawings are not to be scaled. And wherein:
[0024] Figure 1 This is a schematic diagram of the structure of a compressor provided in an embodiment of this disclosure;
[0025] Figure 2This is a schematic diagram of the structure of a balance block body provided in an embodiment of this disclosure;
[0026] Figure 3 yes Figure 2 Schematic diagram of the cross-sectional structure along the AA direction;
[0027] Figure 4 This is a schematic diagram of the structure of a slider provided in an embodiment of this disclosure;
[0028] Figure 5 yes Figure 4 Schematic diagram of the cross-sectional structure along the BB direction;
[0029] Figure 6 This is a schematic diagram of the structure of a balance block provided in an embodiment of this disclosure;
[0030] Figure 7 yes Figure 6 Schematic diagram of the cross-sectional structure along the CC direction;
[0031] Figure 8 This is a cross-sectional structural schematic diagram of another balance block provided in an embodiment of this disclosure;
[0032] Figure 9 This is a schematic diagram of the structure of another balance block body provided in an embodiment of this disclosure;
[0033] Figure 10 yes Figure 9 Schematic diagram of the cross-sectional structure along the DD direction;
[0034] Figure 11 This is a schematic diagram of another slider provided in an embodiment of this disclosure;
[0035] Figure 12 yes Figure 11 Schematic diagram of the cross-sectional structure along the FF direction;
[0036] Figure 13 This is a schematic cross-sectional view of another slider provided in an embodiment of this disclosure;
[0037] Figure 14 This is a cross-sectional structural schematic diagram of another balance block body provided in an embodiment of this disclosure;
[0038] Figure 15 This is a cross-sectional structural schematic diagram of another balance block provided in an embodiment of this disclosure;
[0039] Figure 16 This is a cross-sectional structural diagram of another balance block provided in an embodiment of this disclosure.
[0040] Figure label:
[0041] 10. Balance block; 11. Balance block body; 12. Slider groove; 13. Adjustment hole; 131. First countersunk hole; 14. Support hole; 141. Second countersunk hole; 15. Rivet hole; 16. Slider; 17. Connecting hole; 18. Adjusting component; 181. Adjusting cap; 182. Adjusting column; 19. Fastener; 191. Fastening column; 192. Fastening cap; 20. Rotor; 21. Rivet; 30. Crankshaft; 40. Cylinder; 41. Main bearing; 42. Secondary bearing. Detailed Implementation
[0042] To provide a more detailed understanding of the features and technical content of the embodiments of this disclosure, the implementation of the embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. The accompanying drawings are for illustrative purposes only and are not intended to limit the embodiments of this disclosure. In the following technical description, for ease of explanation, several details are used to provide a full understanding of the disclosed embodiments. However, one or more embodiments may still be implemented without these details. In other cases, well-known structures and devices may be simplified in their depiction to simplify the drawings.
[0043] The terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this disclosure are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for describing embodiments of this disclosure herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion.
[0044] In this disclosure, the terms "upper," "lower," "inner," "middle," "outer," "front," and "rear," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for better description of the embodiments of this disclosure and their implementations, and are not intended to limit the indicated devices, elements, or components to having a specific orientation, or to require them to be constructed and operated in a specific orientation. Furthermore, some of the aforementioned terms may be used to indicate other meanings besides orientation or positional relationship; for example, the term "upper" may in some cases indicate a dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in the embodiments of this disclosure according to the specific circumstances.
[0045] Furthermore, the terms "set up," "connect," and "fix" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this disclosure according to the specific circumstances.
[0046] Unless otherwise stated, the term "multiple" means two or more.
[0047] The term "and / or" describes an association between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or A and B.
[0048] It should be noted that, unless otherwise specified, the embodiments and features described in the present disclosure can be combined with each other.
[0049] Combination Figures 1 to 16 As shown, this embodiment of the present disclosure provides a balance block 10, which includes a balance block body 11, a slider 16, and an adjusting member 18. The balance block body 11 is constructed with a slider groove 12 and an adjusting hole 13, the adjusting hole 13 penetrating the groove wall of the slider groove 12; the slider 16 is movably located in the slider groove 12, and the adjusting hole 13 is connected to the slider 16; the adjusting member 18 passes through the adjusting hole 13 and is connected to the slider 16; wherein, the adjusting member 18 can drive the slider 16 to move in the slider groove 12 to adjust the position of the slider 16 in the slider groove 12.
[0050] In this embodiment, the balance block body 11 is constructed with a slider groove 12, and a slider 16 is disposed within the slider groove 12 and can slide within the slider groove 12. This allows the position of the slider 16 relative to the balance block body 11 to be changed, thereby adjusting the position of the center of mass of the entire balance block 10. This is used to counteract the unbalanced forces and torques caused by differences in part processing and assembly, so that each compressor can achieve the theoretically optimal vibration and noise state, reducing compressor vibration and noise and improving the consistency of compressor vibration and noise. At the same time, due to the adjustability of the center of mass of the balance block 10, compressors with similar crankshaft 30 designs can use the balance block 10 interchangeably, requiring only adjustment of the center of mass of the balance block 10, improving the versatility of parts and reducing costs.
[0051] The adjusting member 18 extends through the adjusting hole 13 into the slider groove 12 so that the adjusting member 18 can be connected to the slider 16. In this way, by operating the adjusting member 18 outside the slider groove 12, the slider 16 can be driven to move, thereby adjusting the position of the slider 16, thereby adjusting the center of mass of the balance block 10 and improving the versatility of the balance block 10.
[0052] Optionally, the balance block 10 also includes a fastener 19, which is movably disposed in the sliding groove. When the slider moves to the set position, the fastener is used to fix the slider.
[0053] In this embodiment of the disclosure, the set position refers to the position required by the slider calculated based on the structure and performance of the compressor or the position that the user needs to set. When the slider moves to the set position, the fastener can be used to fix the slider and prevent the slider from moving.
[0054] Optionally, the outer end of the adjusting member 18 may be flush with the end face of the balance block body, or the outer end of the adjusting member 18 may protrude from the end face of the balance block body. Any arrangement that facilitates operation of the adjusting member 18 is an optional embodiment of this application.
[0055] Optionally, the cross-sectional area of the balance block body 11 is arc-shaped.
[0056] Optionally, the slider groove 12 extends circumferentially along the balance block 10 and is arc-shaped.
[0057] Optionally, the circumferential length of the slider groove 12 is less than the circumferential length of the balance block body 11.
[0058] Optionally, the slider 16 is provided with a connecting hole 17, which corresponds to and communicates with the adjusting hole 13. The adjusting member 18 passes through the adjusting hole 13 and is inserted into the connecting hole 17. The connecting hole and the adjusting member are threadedly connected. That is, the inner wall surface of the connecting hole 17 is provided with an internal thread, and the outer wall surface of the adjusting member 18 is provided with an external thread. The external thread and the internal thread mesh with each other, and the adjusting member is connected to the connecting hole and can move relative to it.
[0059] In this embodiment, the adjusting member 18 can be inserted into the connecting hole 17 to connect the adjusting member 18 with the slider 16. The external thread on the outer wall of the adjusting member 18 and the internal thread on the inner wall of the connecting hole 17 are engaged, so that the adjusting member 18 can be stably connected with the slider, thereby stably driving the slider 16 to move, realizing the adjustment of the position of the slider 16. The adjustment is more convenient and accurate, and can meet the high-precision balance requirements. At the same time, the threaded connection has good self-locking properties, which can ensure that the slider 16 remains stable after being adjusted to the position and is not easy to be displaced.
[0060] Optionally, the adjusting member 18 includes an adjusting cap 181, the cross-sectional area of which is larger than that of the adjusting hole 13. When the slider 16 moves to the set position, the adjusting cap 181 can abut against the end face of the adjusting hole 13 away from the slider groove 12 to restrict the slider 16 from moving away from the adjusting hole 13.
[0061] In this embodiment, after the adjusting member 18 drives the slider 16 to a set position, the adjusting member 18 is turned to adjust the position of the adjusting member 18 relative to the slider 16. At this time, the position of the slider 16 is fixed. The adjusting member 18 is turned so that the adjusting cap 181 of the adjusting member 18 abuts against the end face of the adjusting hole 13 away from the slider groove 12. In this way, the slider 16 cannot move away from the adjusting hole 13 under the limitation of the adjusting cap 181 and the end face of the adjusting hole 13, thus realizing the limitation and fixation of the slider 16 in the direction away from the adjusting hole 13.
[0062] Optionally, the adjusting member 18 further includes an adjusting post 182, which is connected to the adjusting cap 181. The adjusting post 182 is movably located within the adjusting hole 13. The cross-sectional area of the adjusting post 182 is smaller than that of the adjusting cap 181, so that the adjusting cap 181 will not enter the adjusting hole 13, thereby ensuring that the adjusting cap 181 and the adjusting hole 13 are limited away from the end face of the slider groove 12.
[0063] Optionally, the balance block body 11 is also provided with a support hole 14, which penetrates the groove wall of the slider groove 12. The fastener is movably located in the support hole so that one end of the fastener 19 can be movably located in the slider groove. The fastener 19 can pass through the support hole 14 and abut against the slider 16 to fix the slider 16.
[0064] In this embodiment, the balance block body 11 is provided with support holes 14 and fasteners 19, which can increase the fixing method of the slider 16. After the adjustment is completed, the slider 16 is further fixed by the fasteners 19, which improves the stability of the slider 16 position, prevents the slider 16 from being displaced due to vibration and other factors during the operation of the compressor, and ensures the durability of the balancing effect.
[0065] Optionally, the support hole 14 and the adjustment hole 13 are on the same side of the slider groove 12. The balance block 10 also includes a fastener 19, which can extend into the slider groove 12 through the support hole 14. When the slider 16 moves to the set position, the fastener 19 abuts against the end face of the slider 16 facing the support hole 14 to restrict the slider 16 from moving towards the support hole 14.
[0066] In this embodiment, when the slider 16 moves to the set position, the end face of the fastener 19 abuts against the end face of the slider 16 facing the support hole 14. Thus, the slider 16 is prevented from moving towards the support hole 14 by the fastener 19. Since the support hole 14 and the adjustment hole 13 are on the same side of the slider groove 12, the fastener 19 can restrict the slider 16 from moving towards the adjustment hole 13. In this way, the adjustment cap 181 restricts the slider 16 from moving away from the adjustment hole 13, and the fastener 19 restricts the slider 16 from moving towards the adjustment hole 13. This achieves the fixation of the slider 16 in the direction of movement, ensuring the stability of the slider 16.
[0067] Optionally, the number of support holes 14 is one or more. When the number of support holes 14 is more than one, the multiple support holes 14 are arranged at intervals along the circumference of the slider groove 12. This can increase the contact area between the fastener 19 and the slider 16, thereby improving the degree of fixation of the fastener 19 to the slider 16.
[0068] Optionally, at least two of the plurality of support holes 14 are located on both sides of the adjustment hole 13 in the circumferential direction.
[0069] Optionally, the inner wall of the support hole 14 is provided with an internal thread, and the outer wall of the fastener 19 is provided with an external thread. The internal thread and the external thread mesh with each other. That is, the fastener 19 rotates in the support hole 14 to adjust the length of the fastener 19 extending into the slider groove 12. This allows the fastener 19 to adjust the length of its extension according to the position of the slider 16, so as to ensure that the fastener 19 can abut against the slider 16. Moreover, the position of the fastener 19 can be precisely adjusted by the engagement of the internal and external threads. Furthermore, when the fastener 19 moves into place, it can also prevent the fastener 19 from moving, thus ensuring the connection stability of the fastener 19.
[0070] Optionally, at least two of the plurality of support holes 14 are located on both sides of the adjustment hole 13 in the circumferential direction.
[0071] In some alternative embodiments, such as Figures 2 to 8 As shown, the adjustment hole 13 extends along the height direction of the balance block body 11, and the adjustment member 18 can drive the slider 16 along the height direction of the balance block body 11 (e.g., Figure 7 The slider 16 moves in the direction shown in M to adjust its position within the slider groove 12.
[0072] In this embodiment of the disclosure, the adjusting member 18 can drive the slider 16 to move along the height direction of the balance block body 11, such as... Figure 7 As shown, slider 16 can move to one end of slider groove 12, as... Figure 8 As shown, slider 16 can also move to the center position in the height direction of slider groove 12. This allows slider 16 to be adjusted in the height direction of the balance block body 11, thus adjusting the center of mass of the balance block in the height direction. This enables precise compensation for imbalances in components such as rotor 20 at different positions in the height direction. For example, in multi-layered structures or equipment with uneven mass distribution in the height direction, moving slider 16 to increase or decrease the mass at specific positions makes the overall mass distribution of the equipment more uniform, effectively balancing unbalanced forces such as centrifugal force generated during equipment rotation or operation, reducing vibration and sway. This further improves the adjustment flexibility and adaptability of balance block 10, helping to better compensate for imbalances in components such as rotor 20 in the height direction and optimize the balance performance of the equipment.
[0073] Optionally, such as Figure 3 and Figure 5 As shown, in the height direction of the balance block 10, the height H1 of the slider groove 12 is greater than the height H2 of the slider 16. The difference between the height H1 of the slider groove 12 and the height H2 of the slider 16 is greater than or equal to 0.5 mm and less than or equal to 15 mm. Alternatively, the height H1 of the slider groove 12 and the height H2 of the slider 16 are greater than or equal to 0.5 mm and less than or equal to 10 mm. Or, the height H1 of the slider groove 12 and the height H2 of the slider 16 are greater than or equal to 1 mm and less than or equal to 5 mm.
[0074] In this embodiment, the height of the slider groove 12 is greater than the height of the slider 16. This ensures sufficient movement space for the slider 16 and prevents it from detaching from the slider groove 12. The difference between the height of the slider groove 12 and the height of the slider 16 is within the aforementioned range. This ensures that the slider 16 has sufficient room to move within the slider groove 12 for smooth position adjustment, while also preventing excessive clearance that could cause the slider 16 to wobble or become unstable during movement. This ensures a tight and reliable fit between the slider 16 and the slider groove 12, which is beneficial for improving the adjustment accuracy and stability of the balance block 10.
[0075] Optionally, the difference between the height H1 of the slider groove 12 and the height H2 of the slider 16 is 0.5mm, 1mm, 1.5mm, 2mm, 3mm, 4mm, 5mm, 6mm, 7mm, 8mm, 9mm, 10mm, 11mm, 12mm, 13mm, 14mm, 15mm or any value between 0.5mm and 15mm.
[0076] Optionally, the adjustment hole 13 and the support hole 14 are both located at one end of the slider groove 12 in the height direction. That is, the adjustment hole 13 and the support hole 14 can both be located at the bottom of the slider groove 12, or the adjustment hole 13 and the support hole 14 can both be located at the top of the slider groove 12.
[0077] Optionally, such as Figure 7 and Figure 8 As shown, the end of the adjustment hole 13 away from the slider groove 12 is located on the outer wall surface of the balance block body 11 in the height direction. When the slider 16 moves to the set position, the adjustment cap 181 abuts against the outer wall surface of the balance block body 11 in the height direction, thereby restricting the adjustment cap 181 from moving toward the slider groove 12, and thus restricting the slider 16 from moving away from the adjustment hole 13.
[0078] In other alternative embodiments, such as 9 to Figure 16 As shown, the adjustment hole 13 extends radially along the balance block body 11, and the adjustment member 18 can drive the slider 16 to move radially along the balance block body 11 to adjust the position of the slider 16 in the slider groove 12. Here, it refers to the radial direction of the cross-section of the balance block 10, that is, the direction from the center outward or inward.
[0079] In this embodiment, the adjusting member 18 can also drive the slider 16 to move radially along the balance block body 11. This adjusts the radial center of mass of the balance block, precisely compensating for mass deviations of rotating components such as the rotor 20 at different radial radii. For example, assuming calculations reveal that the rotor 20 has insufficient or excessive mass at a certain radial position, by moving the slider 16 to the corresponding radial position, the effective mass at that point is increased or decreased, thereby precisely offsetting the unbalanced mass and balancing the centrifugal force of the rotor 20 during rotation, significantly improving the balance accuracy of the equipment. When the slider 16 moves radially to the appropriate position, it effectively reduces the vibration generated during the rotation of the rotor 20. Reduced vibration helps lower noise during compressor operation, improves the smoothness of compressor operation, and ensures the quality and pressure stability of the compressed gas.
[0080] Optionally, along the radial direction of the balance block body 11, the width L1 of the slider groove 12 is greater than the width L2 of the slider 16, such as... Figure 16 As shown, when slider 16 moves to the first position, slider 16 abuts against the outer wall of slider groove 12; as Figure 15 As shown, when slider 16 moves to the second position, slider 16 abuts against the inner wall of slider groove 12. Here, the outer side refers to the side of slider groove 12 away from the center, and the inner side refers to the side of slider groove 12 facing the center.
[0081] In this embodiment, the width L1 of the slider groove 12 is greater than the width L2 of the slider 16, so that when the slider 16 moves to different positions, it can abut against the outer groove wall and the inner groove wall respectively. This allows the slider 16 to be positioned at two extreme positions in the radial direction, which facilitates the determination of the adjustment range of the slider 16 and ensures that the slider 16 is in close contact with the groove wall at different positions, thereby better playing the balancing role. At the same time, it prevents the slider 16 from exceeding the range of the slider groove 12, thus improving the reliability and safety of the balance block 10.
[0082] Optionally, along the height direction of the balance block body 11 (e.g.) Figure 10 (In the direction shown by M), the height H3 of the slider groove 12 is greater than or equal to the height H4 of the slider 16, and the difference between the height H3 of the slider groove 12 and the height H4 of the slider 16 is greater than or equal to 0 and less than or equal to 5mm.
[0083] In this embodiment, the height of slider 16 is less than or equal to the height of slider groove 12, so that slider groove 12 provides sufficient space for slider 16 to prevent slider 16 from falling off.
[0084] Optionally, such as Figures 14 to 16As shown, the end of the adjusting hole 13 away from the slider groove 12 is provided with a first countersunk hole 131. The cross-sectional area of the first countersunk hole 131 is larger than the cross-sectional area of the adjusting hole 13. The adjusting member 18 includes an adjusting cap 181 and an adjusting post 182. The adjusting post 182 is movably located inside the adjusting hole 13, and the adjusting cap 181 is movably located inside the first countersunk hole 131. The end face of the adjusting hole 13 away from the slider groove 12 refers to the end face formed at the connection between the first countersunk hole 131 and the adjusting hole 13. When the slider 16 moves to the set position, rotating the adjusting member 18 can cause the adjusting cap 181 to abut against the end face at the connection between the first countersunk hole 131 and the adjusting hole 13, thereby restricting the adjusting cap 181 from moving into the adjusting hole 13, and thus restricting the adjusting member 18 from driving the slider 16 to move away from the adjusting hole 13.
[0085] Optionally, such as Figures 14 to 16 As shown, the end of the support hole 14 away from the slider groove is provided with a countersunk hole (hereinafter referred to as the second countersunk hole for easy distinction). The outer end of the second countersunk hole is located on the outer peripheral wall of the balance block body. The cross-sectional area of the second countersunk hole is larger than the cross-sectional area of the support hole. The fastener includes a fastening post and a fastening cap connected to each other. The fastening post is movably located in the support hole, and the second fastening cap is movably located in the second countersunk hole. The cross-sectional area of the fastening cap is larger than the cross-sectional area of the support hole. Among them, along the radial direction of the balance block body 11, the difference between the width L4 of the second countersunk hole 142 and the width L3 of the fastening cap 192 is greater than the difference between the width L1 of the slider groove and the width L2 of the slider 16.
[0086] In this embodiment, the difference between the width L4 of the second countersunk hole 142 and the width L3 of the fastening cap 192 is greater than or equal to the difference between the width L1 of the sliding groove and the width L2 of the slider 16. This ensures that the fastening cap 192 has sufficient room to move within the second countersunk hole 142 when the slider 16 moves radially, preventing size limitations from affecting the normal adjustment of the slider 16. It also ensures the stability and accuracy of the slider 16's movement within the slider groove 12, enabling coordinated operation among the various components of the balance block 10 and improving the overall performance and service life of the balance block 10. Furthermore, along the radial direction of the balance block body 11, the difference between the width L4 of the second countersunk hole 142 and the width L3 of the fastening cap 192 is greater than the difference between the width L1 of the sliding groove and the width L2 of the slider 16. This ensures that when the slider 16 moves to the first position, the fastening cap 192 will not protrude beyond the outer circumference of the balance block body 11, preventing interference between the adjusting member 18 and the outer ring components of the motor rotor 20.
[0087] Optionally, when the slider 16 moves to the second position, the fastening cap 192 is in contact with the wall surface of the outer end of the support hole 14, or there is a gap between the fastening cap 192 and the wall surface of the outer end of the support hole 14.
[0088] In this embodiment, the structure of the countersunk hole 142 and the support hole 14 facilitates the installation and operation of the fastener 19. The fastening cap 192 moves within the countersunk hole 142, providing convenient space for adjustment. When the slider 16 moves to the second position, the fit or gap between the fastening cap 192 and the outer end wall of the support hole 14 prevents the fastener 19 from being over-screwed and causing damage to the slider 16 and the balance block body 11. At the same time, it allows the adjusting member 18 to be freely adjusted within a certain range, ensuring the smoothness and reliability of the adjustment process.
[0089] Optionally, the inner wall of the adjusting hole 13 is not threaded, which makes it easier for the adjusting member 18 to move through the adjusting hole 13.
[0090] Optionally, the extension direction of the support hole 14 is consistent with the extension direction of the adjustment hole 13.
[0091] Optionally, when the adjustment hole 13 extends along the height direction of the balance block body 11, the support hole 14 extends along the height direction of the balance block body 11.
[0092] Optionally, when the adjustment hole 13 extends radially along the balance block body 11, the support hole 14 extends radially along the balance block body 11.
[0093] Optionally, the balance block body 11 is also provided with rivet holes 15, which are located on the outside of the slider groove 12 and are used to connect with the rotor 20.
[0094] In this embodiment, the balance block 10 is connected to the rotor 20 by providing rivet holes 15, so that the balance block 10 can be firmly installed on the rotor 20, ensuring the reliability of torque transmission and centrifugal force resistance between the balance block 10 and the rotor 20, thereby improving the overall operational stability and safety of the compressor. Furthermore, the rivet holes 15 are located on the balance block body 11 and will not affect the components within the slider 16 and slider groove 12, nor the movement of the slider 16.
[0095] Optionally, the rotor 20 is provided with a rivet 21 connection hole 17, through which the rivet 21 can pass to the rivet hole 15 and the rivet 21 connection hole 17 to connect the rotor 20 and the balance block 10.
[0096] Optionally, the rivet hole 15 is located on one side of the slider groove 12 in the circumferential direction. The number of rivet holes 15 can be one or more. When there are multiple rivet holes 15, at least two rivet holes 15 are located on both sides of the slider groove 12 in the circumferential direction, so as to improve the connection stability between the balance block 10 and the rotor 20.
[0097] Optionally, the connecting hole 17 is located at the center of the circumferential length of the slider 16, so that the adjusting member 18 can stably drive the slider 16 to move in the circumferential direction of the slider 16.
[0098] Optionally, the number of connection holes 17 is one or more.
[0099] Optionally, the adjusting element 18 can be a screw or stud, etc.
[0100] Alternatively, fastener 19 can be a screw or bolt, etc.
[0101] This disclosure also provides a compressor, which includes a balance block 10 as described in any of the above embodiments.
[0102] The compressor provided in this disclosure includes the balance block 10 of any of the above embodiments, and therefore has the beneficial effects of the balance block 10 of any of the above embodiments, which will not be repeated here.
[0103] like Figure 1 As shown, optionally, the compressor includes a rotor assembly, which includes a rotor 20 and a counterweight 10, the counterweight 10 being disposed on the rotor 20.
[0104] Optionally, the balance block 10 is located at the upper end of the rotor 20, or at the lower end of the rotor 20, or at both the upper and lower ends of the rotor 20. In practical applications, the balance block 10 can be configured according to the compressor's structure, displacement, and process.
[0105] Optionally, the compressor also includes a pump body structure, which includes a crankshaft 30, a main bearing 41, and a cylinder 40. The crankshaft 30 passes through and is connected to the rotor 20 to drive the rotor 20 to rotate. The main bearing 41 is located above the cylinder 40 and is sleeved on the outside of the crankshaft 30.
[0106] Optionally, the compressor also includes a secondary bearing 42 located below the cylinder 40, with the crankshaft 30 passing through the cylinder 40 and located inside the secondary bearing 42.
[0107] Optionally, the balance block 10 is connected to the rotor 20 to form a rotor assembly. When the balance block 10 is initially installed on the rotor 20 and the slider 16 can move along the height direction of the slider groove 12, the slider 16 of the balance block 10 is located in the middle of the height direction of the slider groove 12. Then, the connected rotor assembly is installed on the pump body of the compressor. Dynamic balance is checked according to the rotating shaft system of the compressor. By adjusting the position of the slider 16 of the balance block 10 in the height direction of the balance block body 11, the center of mass of the balance block 10 in the height direction is adjusted so that the compressor reaches the optimal vibration level.
[0108] Optionally, the balance block 10 is connected to the rotor 20 to form a rotor assembly. When the balance block 10 is initially installed on the rotor 20 and the slider 16 can move in the radial direction along the slider groove 12, the slider 16 of the balance block 10 is located in the middle of the radial direction of the slider groove 12. Then, the connected rotor assembly is installed on the pump body of the compressor. Dynamic balance is checked according to the rotating shaft system of the compressor. By adjusting the position of the slider 16 of the balance block 10 in the radial direction of the balance block body 11, the radial center of mass of the balance block 10 is adjusted so that the compressor reaches the optimal vibration level.
[0109] The foregoing description and accompanying drawings fully illustrate embodiments of the present disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The embodiments represent only possible variations. Individual components and functions are optional unless explicitly required, and the order of operation may vary. Parts and features of some embodiments may be included or substituted for parts and features of other embodiments. Embodiments of the present disclosure are not limited to the structures described above and shown in the accompanying drawings, and various modifications and changes may be made without departing from its scope. The scope of the present disclosure is limited only by the appended claims.
Claims
1. A balance block, characterized in that, include: The main body of the balance block is constructed with a slider groove and an adjustment hole, with the adjustment hole penetrating through the groove wall of the slider groove; The slider is located within the slider groove, and the adjustment hole is connected to the slider. An adjusting component passes through an adjusting hole and connects to the slider. The adjusting component can drive the slider to move within the slider groove to adjust the position of the slider within the slider groove. The fastener is movably located within the slider groove. When the slider moves to the set position, the fastener is used to fix the slider.
2. The balance block according to claim 1, characterized in that, The slider is provided with a connecting hole, which corresponds to and is connected to the adjustment hole. The adjustment component passes through the adjustment hole and is inserted into the connecting hole. The connecting hole is threadedly connected to the adjustment component so that the adjustment component can move relative to the slider. The adjusting component includes an adjusting cap, the cross-sectional area of which is larger than that of the adjusting hole. When the slider moves to the set position, the adjusting cap can abut against the end face of the adjusting hole away from the slider groove to restrict the slider from moving away from the adjusting hole.
3. The balance block according to claim 2, characterized in that, The main body of the balance block is also provided with a support hole, which penetrates the wall of the slider groove. The support hole and the adjustment hole are on the same side of the slider groove, and the fastener can pass through the support hole and extend into the slider groove. When the slider moves to the set position, the fastener can abut against the end face of the slider facing the support hole to restrict the slider from moving towards the support hole.
4. The balance block according to claim 3, characterized in that, The adjustment hole extends along the height direction of the balance block body, and the adjustment component can drive the slider to move along the height direction of the balance block body to adjust the position of the slider in the slider groove.
5. The balance block according to claim 4, characterized in that, The height of the slider groove is greater than the height of the slider; wherein, the difference between the height of the slider groove and the height of the slider is greater than or equal to 0.5 mm and less than or equal to 15 mm, or, the difference between the height of the slider groove and the height of the slider is greater than or equal to 0.5 mm and less than or equal to 10 mm, or, the difference between the height of the slider groove and the height of the slider is greater than or equal to 1 mm and less than or equal to 5 mm; and / or, The support hole extends along the height direction of the balance block body and is located on at least one side of the adjustment hole circumferentially.
6. The balance block according to claim 3, characterized in that, The adjustment hole extends radially along the main body of the balance block, and the adjustment component can drive the slider to move radially along the main body of the balance block to adjust the position of the slider in the slider groove.
7. The balance block according to claim 6, characterized in that, Along the radial direction of the balance block body, the width of the slider groove is greater than or equal to the width of the slider. When the slider moves to the first position, the slider abuts against the outer wall of the slider groove; when the slider moves to the second position, the slider abuts against the inner wall of the slider groove; and / or, Along the height direction of the balance block body, the height of the slider groove is greater than or equal to the height of the slider, and the difference between the height of the slider groove and the height of the slider is greater than or equal to 0 and less than or equal to 5mm.
8. The balance block according to claim 6, characterized in that, The support hole extends radially along the balance block and is located on at least one side of the adjustment hole circumferentially; and / or, The end of the support hole away from the slider groove is provided with a countersunk hole. The outer end of the countersunk hole is located on the outer peripheral wall of the balance block body. The cross-sectional area of the countersunk hole is larger than that of the support hole. The fastener includes a fastening post and a fastening cap connected to each other. The fastening post is movably located in the support hole, and the fastening cap is movably located in the countersunk hole. The cross-sectional area of the fastening cap is larger than that of the support hole. In particular, along the radial direction of the balance block body, the difference between the width of the countersunk hole and the width of the fastening cap is greater than the difference between the width of the sliding groove and the width of the slider.
9. The balance block according to any one of claims 1 to 8, characterized in that, The main body of the balance block is also provided with rivet holes, which are located on the outside of the slider groove and are used to connect with the rotor.
10. A compressor, characterized in that, Includes the balance block as described in any one of claims 1 to 9.