CN221896828U - Adjusting mechanism for compressor and compressor - Google Patents

Abstract

The utility model discloses an adjusting mechanism for a compressor and the compressor, wherein the adjusting mechanism is used for adjusting the opening degree of a guide vane structure, the adjusting mechanism comprises a driving assembly, a speed reducing assembly and a transmission assembly, the speed reducing assembly is provided with an input shaft and an output shaft, the transmission ratio from the input shaft to the output shaft is smaller than 1, and the input shaft is connected with the driving assembly; the transmission assembly is in transmission connection with the output shaft and is configured for transmission connection with a guide vane structure. According to the adjusting mechanism for the compressor and the compressor, disclosed by the embodiment of the utility model, the output torque can be increased to the required torque, the problem of insufficient torque can be effectively solved, and the design range of the transmission ratio is increased.

Description

Adjusting mechanism for compressor and compressor

Technical Field

The utility model relates to the technical field of heating and ventilation equipment, in particular to an adjusting mechanism for a compressor and the compressor.

Background

In the refrigeration industry, adjustable vane mechanisms are an important means of regulating the load of a unit, and in centrifugal compressors, adjustable vane mechanisms are also important components for preventing surge. In the industry, for a miniaturized compressor, an adjustable air inlet guide vane mechanism is smaller, and driving torque required by guide vane operation is relatively smaller, so that a stepping motor is generally used for driving in the industry, but the output torque of the stepping motor is usually smaller, and the guide vane mechanism needs to be increased by arranging a speed reducer. Meanwhile, the internal space of the miniaturized centrifugal compressor is limited, and the speed reducer is not convenient to add due to the narrow space.

Disclosure of utility model

The present utility model aims to solve at least one of the technical problems in the related art to some extent.

Therefore, an object of the present utility model is to provide an adjusting mechanism for a compressor, which can increase the output torque to a required torque, effectively solve the problem of insufficient torque, and increase the design range of the transmission ratio.

According to the adjusting mechanism for the compressor, which is used for adjusting the opening degree of the guide vane structure, the adjusting mechanism comprises a driving assembly, a speed reducing assembly and a transmission assembly, the speed reducing assembly is provided with an input shaft and an output shaft, the transmission ratio from the input shaft to the output shaft is smaller than 1, and the input shaft is connected with the driving assembly; the transmission assembly is in transmission connection with the output shaft and is configured for transmission connection with a guide vane structure.

According to the adjusting mechanism for the compressor, the speed reducing assembly is arranged between the driving assembly and the transmission assembly, so that the driving assembly can increase the output torque to the required torque after passing through the speed reducing assembly, the problem of insufficient torque can be effectively solved, meanwhile, the design range of the transmission ratio can be enlarged through the speed reducing assembly and the transmission assembly, the output torque of the high-speed low-torque driving assembly can be amplified by tens to thousands times, and the model selection of the driving assembly is facilitated.

In addition, the adjusting mechanism for a compressor according to the above embodiment of the present utility model may have the following additional technical features:

optionally, the speed reducing assembly and the driving assembly are of a split structure, and the speed reducing assembly is arranged outside the driving assembly.

Optionally, the input shaft of the speed reduction assembly is connected with the shaft of the driving assembly through a coupling.

Optionally, the transmission assembly includes a base and a drive worm rotatably connected to the base and configured for connection to a vane structure; the driving worm is in transmission connection with the output shaft.

Optionally, be equipped with first bearing frame and second bearing frame on the base, first bearing frame with the second bearing frame interval arrangement is equipped with the bearing, drive worm's both ends are connected respectively first bearing frame with the bearing on the second bearing frame.

Optionally, the axis of the driving worm forms an included angle with the axis of the output shaft, wherein the transmission assembly further comprises a first bevel gear and a second bevel gear, and the first bevel gear is in transmission connection with the output shaft; the second bevel gear is in transmission connection with the driving worm, and the second bevel gear is meshed with the first bevel gear.

Optionally, the adjusting mechanism further comprises a shaft sleeve and a connecting shaft, and the shaft sleeve is connected with the base; the connecting shaft is rotatably arranged in the shaft sleeve, one end of the connecting shaft is connected with the output shaft, and the other end of the connecting shaft is in transmission connection with the driving worm.

Optionally, the drive assembly comprises a stepper motor.

Another object of the present utility model is to propose a compressor comprising the aforementioned regulation mechanism.

The compressor comprises a compression mechanism, a guide vane structure and any one of the adjusting mechanisms, wherein the guide vane structure is arranged at an inlet of the compression mechanism and is used for adjusting the opening of the inlet; the adjusting mechanism is in transmission connection with the guide vane structure.

According to the compressor provided by the embodiment of the utility model, through the application of the adjusting mechanism, the opening degree of the guide vane can be controlled through the transmission guide vane structure to adjust the inlet gas flow, and the rotating speed and the load can be adjusted according to different working requirements so as to adjust the working state of the compressor, thereby improving the overall performance and the working efficiency of the compressor.

Optionally, the speed reducing assembly is disposed outside the compressor.

Optionally, the driving assembly is disposed outside the compressor.

Drawings

Fig. 1 is a schematic view of an adjustment mechanism for a compressor in accordance with some embodiments of the present utility model.

Fig. 2 is a schematic diagram of a compressor in accordance with some embodiments of the utility model.

FIG. 3 is a schematic illustration of a connection of a vane structure to an adjustment mechanism of a compressor in some embodiments of the utility model.

Reference numerals: the device comprises an adjusting mechanism 100, a driving assembly 110, a speed reducing assembly 120, a transmission assembly 130, an input shaft 121, a speed reducer 122, an output shaft 123, a guide vane structure 210, a coupler 124, a base 131, a driving worm 132, a first bearing seat 133, a second bearing seat 134, a first bearing 135, a second bearing 136, a first bevel gear 137, a second bevel gear 138, a rolling bearing 139, a shaft sleeve 140, a connecting shaft 141, a self-lubricating bearing 142, a sealing ring 143, a stepping motor 111, a compressor 200, a compression mechanism 220, a turbine 211, a driving ring 212, a connecting rod 213 and a guide vane 214.

Detailed Description

The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present application are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly. Furthermore, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact through an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

Furthermore, descriptions such as those referred to as "first," "second," and the like, are provided for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implying an order of magnitude of the indicated technical features in the present disclosure. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.

The present application provides an adjusting mechanism 100 for a compressor 200, which will be described in detail below. It should be noted that the following description order of the embodiments is not intended to limit the preferred order of the embodiments of the present application. In the following embodiments, the descriptions of the embodiments are focused on, and for the part that is not described in detail in a certain embodiment, reference may be made to the related descriptions of other embodiments.

Referring to fig. 1, according to an embodiment of the present utility model, an adjusting mechanism 100 for a compressor 200 is provided, wherein the adjusting mechanism 100 is used for adjusting an opening degree of a guide vane structure 210, the adjusting mechanism 100 includes a driving assembly 110, a speed reducing assembly 120 and a transmission assembly 130, the speed reducing assembly 120 has an input shaft 121 and an output shaft 123, a transmission ratio from the input shaft 121 to the output shaft 123 is less than 1, and the input shaft 121 is connected with the driving assembly 110; the drive assembly 130 is in driving connection with the output shaft 123 and is configured for driving connection with the vane structure 210.

Specifically, the adjustment mechanism 100 of the compressor 200 is configured to adjust the opening of the vane structure 210, and the opening of the vane structure 210 controls the size of the passage of the airflow through the vanes 214, thereby affecting the flow and pressure output of the compressor 200. The adjustment mechanism 100 includes a drive assembly 110, a reduction assembly 120, and a transmission assembly 130. The drive assembly 110 is configured to provide a driving force, which may be an electric motor, a hydraulic cylinder, etc., that is capable of transmitting energy downwardly in a rotational or thrust manner. The components of the reduction assembly 120 used to convert the high speed input from the drive assembly 110 into the low speed output required by the vanes 214 may be a gear drive, belt drive, chain drive, or the like. The speed reducing assembly 120 comprises an input shaft 121 and an output shaft 123, wherein the input shaft 121 is connected with the driving assembly 110, the output shaft 123 is connected with the transmission assembly 130, and the transmission assembly 130 is in transmission connection with the guide vane structure 210. The reduction assembly 120 has a ratio of less than 1 from the input shaft 121 to the output shaft 123, which can increase torque while reducing speed to output power that is transferred through the transmission assembly 130 to the vane structure 210, allowing for more precise control and regulation of the vane structure 210 at lower speeds and greater torque.

According to the adjusting mechanism 100 for the compressor 200 in the embodiment of the utility model, the speed reducing assembly 120 is arranged between the driving assembly 110 and the transmission assembly 130, so that the driving assembly 110 can increase the output torque to the required torque after passing through the speed reducing assembly 120, the problem of insufficient torque can be effectively solved, meanwhile, the design range of the transmission ratio can be enlarged through the speed reducing assembly 120 and the transmission assembly 130, the output torque of the driving assembly 110 with high speed and low torque can be amplified by tens to thousands times, and the model selection of the driving assembly 110 is facilitated.

In some embodiments, the speed reducing assembly 120 and the driving assembly 110 are of a split structure, and the speed reducing assembly 120 is disposed outside the driving assembly 110. Referring to fig. 1, the speed reducing assembly 120 and the driving assembly 110 are independent from each other, and the split structure can place the speed reducing assembly 120 outside the driving assembly 110, so that space can be saved, and meanwhile, different speed reducing assemblies 120 and driving assemblies 110 can be flexibly selected to meet different performance requirements. The split construction also reduces interaction and interference between the reduction assembly 120 and the drive assembly 110, and allows one of the assemblies to be replaced without having to modify the overall system when a malfunction occurs or maintenance is required.

In some embodiments, the input shaft 121 of the reduction assembly 120 is connected to the shaft of the drive assembly 110 by a coupling 124. Referring to fig. 1, a coupling 124 is disposed between the reduction assembly 120 and the driving assembly 110, and the coupling 124 is used to connect the shaft of the driving assembly 110 and the input shaft 121 of the reduction assembly 120, and simultaneously transmit rotational force and torque. In addition, the coupling 124 may provide some axial and radial misalignment capability so that the reduction assembly 120 and the drive assembly 110 may have some tolerance for relative movement and alignment errors, thereby simplifying the installation and adjustment process. Meanwhile, the coupling 124 can also play a role in damping and compensating, so that chatter and damage caused by axis misalignment, shaft torsion, vibration and the like can be reduced.

In some embodiments, the reduction assembly 120 includes a speed reducer 122, the speed reducer 122 being configured to reduce the rotational speed of the drive assembly 110 and increase the output torque. The speed reducer 122 may include a single-stage speed reducer and a multi-stage speed reducer, and when the single-stage speed reducer cannot meet the requirement of the moment of the mechanism or the speed reduction ratio with higher requirement, the multi-stage speed reducer needs to be considered to meet the requirement of use. The multi-stage reducer can meet a wide range of torque and rotational speed demands by combining different gear reduction ratios. By increasing the number of steps, a higher reduction ratio can be achieved, thereby providing a higher output torque.

In some embodiments, the drive assembly 130 includes a base 131 and a drive worm 132, the drive worm 132 rotatably coupled to the base 131 and configured for coupling to the vane structure 210; wherein the drive worm 132 is in driving connection with the output shaft 123. In particular, referring to fig. 1, the base 131 is a basic part of supporting and fixing the transmission assembly 130, and the base 131 provides a supporting point and a fixing structure so that the entire transmission assembly 130 can stably operate and can be connected to other parts or devices. The driving worm 132 is in transmission connection with the output shaft 123 of the speed reducing assembly 120, so that the rotation motion of the output shaft 123 of the speed reducing assembly 120 can be converted into the rotation motion of the driving worm 132, the driving worm 132 is rotatably connected to the base 131 and provided with worm threads, meanwhile, the driving worm 132 is connected with the guide vane structure 210, and the rotation motion of the guide vane structure 210 can be realized in a transmission manner.

In some embodiments, the base 131 is provided with a first bearing seat 133 and a second bearing seat 134, the first bearing seat 133 and the second bearing seat 134 are arranged at intervals, and are provided with bearings, and two ends of the driving worm 132 are respectively connected with the bearings on the first bearing seat 133 and the second bearing seat 134. Specifically, referring to fig. 1, there is an axial space between the first bearing housing 133 and the second bearing housing 134 to ensure that the drive worm 132 has sufficient length and space to fit the bearings. The first bearing housing 133 and the second bearing housing 134 are provided with a first bearing 135 and a second bearing 136, respectively, and the first bearing 135 and the second bearing 136 are used for supporting and transmitting a rotational force to ensure stable rotation of the driving worm 132. The loads borne by the bearings on the two bearing seats are separated, so that the load of each bearing is reduced, and the service life and reliability of the bearing are improved. By providing two bearing blocks, axial displacement and deflection of the drive worm 132 can be limited, reducing driveline shake and wear due to axial displacement. In addition, the bearing is easy to maintain and replace, so that the whole maintenance of the transmission system is simpler and more efficient.

In some embodiments, the bearing and the base 131 employ a certain interference fit. Specifically, the first bearing 135 and the second bearing 136 are connected with the base 131 by adopting a certain interference fit. In order to ensure a secure connection between the bearing and the base 131 during assembly, the outer diameter of the bearing and the aperture of the base 131 are set to a certain size difference such that a certain pressure is required for mounting the bearing into the base 131 during assembly. By forming a tight connection between the bearing and the base 131 through an interference fit, higher strength and stability can be provided, reducing loosening and vibration of the system. Because of tight connection between the interference fit bearing and the base 131, torque and force can be effectively transferred, and efficiency and reliability of the transmission system are improved. In addition, the interference fit can reduce sliding and relative movement of the bearing in the assembly process, reduce friction and abrasion, and prolong the service life of the bearing. Of course, the interference fit between the bearing and the base 131 is moderate, and excessive interference fit may result in difficult assembly, excessive compression, or even increased wear of the bearing and the base 131.

In some embodiments, the axis of the drive worm 132 is at an angle to the axis of the output shaft 123, wherein the drive assembly 130 further comprises a first bevel gear 137 and a second bevel gear 138, the first bevel gear 137 being in driving connection with the output shaft 123; the second bevel gear 138 is in driving connection with the drive worm 132, and the second bevel gear 138 intermeshes with the first bevel gear 137. Specifically, referring to fig. 1, the axis of the driving worm 132 is L1, the axis of the output shaft 123 is L2, and the axis L1 intersects with the axis L2 to form an included angle, that is, the axis of the driving worm 132 and the axis of the output shaft 123 form an included angle, which may be a right angle or a non-right angle. The first bevel gear 137 is in driving connection with the output shaft 123 of the reduction assembly 120, and by engagement therebetween, drive force and motion are transferred to the first bevel gear 137, effecting a speed and torque change in the drive train. The engagement between the second bevel gear 138 and the first bevel gear 137 mutually transmits the driving force and the movement, and a suitable gear ratio can be achieved. The second bevel gear 138 is in driving connection with the drive worm 132, transmitting driving force and movement to the drive worm 132 through engagement therebetween.

In some embodiments, the adjustment mechanism 100 further includes a sleeve 140 and a connecting shaft 141, the sleeve 140 connecting the base 131; the connecting shaft 141 is rotatably disposed in the shaft sleeve 140, one end of the connecting shaft 141 is connected to the output shaft 123, and the other end is in transmission connection with the driving worm 132. Referring to fig. 1 in combination with the foregoing embodiment, one end of the connecting shaft 141 is connected to the output shaft 123 of the reduction assembly 120 through the coupling 124, and the other end is connected to the first bevel gear 137. By transmission of the connecting shaft 141, driving force and motion can be transmitted from the output shaft 123 of the reduction assembly 120 to the first bevel gear 137, and then from the first bevel gear 137 to the driving worm 132. By the combination of the coupling 124 and the connecting shaft 141, flexibility and adjustability in connecting the reduction assembly 120 and the drive worm 132 is possible while maintaining the accuracy and efficiency of the transmission. The connection shaft 141 is rotatably provided in the shaft housing 140, the shaft housing 140 is connected to the base 131, and the shaft housing 140 provides axial support and fixes the connection shaft 141 so that it can rotate in the shaft housing 140 and reduce friction and wear during movement.

In some embodiments, the connecting shaft 141 is supported and restrained by one rolling bearing 139 and two self-lubricating bearings 142. Referring to fig. 1, in combination with the foregoing embodiment, two self-lubricating bearings 142 are disposed at one end of the connecting shaft 141 near the output shaft 123 of the reduction assembly 120, a rolling bearing 139 is disposed at one end near the first bevel gear 137, and the rolling bearing 139 and the self-lubricating bearings 142 are both sleeved outside the connecting shaft 141. The rolling bearing 139 forms rolling friction between the inner ring and the outer ring in the connecting shaft 141 by rolling elements to support and restrict rotation of the connecting shaft 141. The rolling elements roll between the inner and outer rings, receiving axial and radial loads of the connecting shaft 141 at the time of rotation, thereby supporting the rotation of the connecting shaft 141. Meanwhile, the contact decrement or pretightening force control between the inner and outer rings can limit the axial displacement of the connecting shaft 141. The self-lubricating bearing 142 forms a lubricating layer between the inner and outer rings by an internal lubricating material, and reduces friction and wear when the connecting shaft 141 rotates, thereby supporting and restricting the rotation of the connecting shaft 141. The lubrication layer may provide proper lubrication and prevent friction when the connection shaft 141 rotates. The deformation and deformation of the lubricating layer may also act as a limit, thereby limiting the axial displacement of the connecting shaft 141. When the rolling bearing 139 and the self-lubricating bearing 142 are used in combination, a larger load and an instantaneous load can be borne by the rolling bearing 139, and the self-lubricating bearing 142 can be added with a lubricating function, so that maintenance cost is reduced.

In some embodiments, the drive assembly 110 includes a stepper motor 111. The stepper motor 111 has better accuracy and position control capability and can be used to precisely control the position of the guide vanes 214. However, the output torque of the stepper motor 111 is generally small, and may not directly meet the working requirements of the guide vane structure 210, so the stepper motor 111 is used in combination with the speed reduction assembly 120 to realize driving of the adjustable intake guide vane structure 210. This not only maintains the accuracy control capability of the stepper motor 111, but also provides sufficient torque through the reduction assembly 120 to ensure proper operation of the vane structure 210.

Of course, other driving methods of the driving assembly 110 may be adopted, such as a brushless dc motor, an ac motor, an electro-hydraulic driving, etc. The brushless dc motor may be digitally controlled to produce torque and speed control, which may replace the conventional stepper motor 111 in some applications. Ac motors may employ frequency converters to control their speed and torque output.

Another object of the present utility model is to provide a compressor 200, wherein the compressor 200 includes the aforementioned adjusting mechanism 100.

The compressor 200 according to the embodiment of the present utility model includes a compression mechanism 220, a guide vane structure 210, and the adjusting mechanism 100 of any one of the above, where the guide vane structure 210 is disposed at an inlet of the compression mechanism 220, for adjusting an inlet opening; the adjustment mechanism 100 is in driving connection with the vane structure 210. Specifically, referring to fig. 2 and 3, the compression mechanism 220 is a main execution component of the compressor 200 for compressing gas into high-pressure gas. The vane structure 210 is disposed at the inlet of the compressor 200, and controls the amount of gas entering the compressor 200 by adjusting the opening of the vanes 214, thereby controlling the outlet pressure thereof. The adjusting mechanism 100 is in driving connection with the vane structure 210, and can be used for controlling the opening degree of the vane 214.

According to the compressor 200 of the embodiment of the present utility model, by applying the foregoing adjusting mechanism 100, the opening degree of the guide vane 214 can be controlled by the driving guide vane structure 210 to adjust the flow of the inlet gas, and the rotation speed and the load can be adjusted according to different working requirements, so as to adjust the working state of the compressor 200, and improve the overall performance and the working efficiency of the compressor 200.

In some embodiments, the reduction assembly 120 is disposed outside the compressor 200. Referring to fig. 2, for a small centrifugal compressor, the reduction assembly 120 may be provided outside the compressor 200 due to the limitation of the internal space. Transmitting the driving force from the outside to the rotor inside the compressor 200 by means of a transmission provides greater flexibility in the design of the compressor 200 and can accommodate the size constraints of the small compressor 200.

In some embodiments, the drive assembly 110 is disposed outside the compressor 200. Referring to fig. 2, the driving assembly 110 may be disposed outside the compressor 200, and the driving assembly 110 may include a motor, an engine, or other driving means to provide a main driving force. The driving force is transmitted to the rotor inside the compressor 200 through an external transmission device, such as a shaft transmission, a chain transmission, or a belt transmission, etc. Locating the drive assembly 110 outside the compressor 200 may reduce the space occupation of internal components, provide greater flexibility and compactness, and may facilitate maintenance and replacement of the drive assembly 110. Meanwhile, the design of the inside of the compressor 200 can be focused more on achieving efficient compression work, and the driving assembly 110 can be flexibly arranged according to the needs.

In some embodiments, the vane structure 210 includes a turbine 211, a drive ring 212, a connecting rod 213, and a vane 214, and in combination with the foregoing embodiments, the turbine 211 is in driving connection with the drive worm 132, the turbine 211 drives the drive ring 212, and the rotational motion of the drive worm 132 will be transmitted to the drive ring 212 through the turbine 211. The connecting rod 213 has one end connected to the driving ring 212 and the other end connected to the guide vane 214, and the guide vane 214 can be opened or closed to adjust the opening degree. When the driving ring 212 rotates, the connecting rod 213 moves with it, and when the connecting rod 213 moves, the position and opening of the guide vane 214 are affected. By controlling the rotation of the drive worm 132, movement of the turbine 211, the drive ring 212 and the connecting rod 213 can be achieved, thereby controlling the degree of opening or closing of the vanes 214 to achieve regulation of fluid flow and energy.

In some embodiments, a sealing ring 143 is further disposed in the compressor 200 for sealing the airtight space inside the compressor 200. The compressor 200 may generate high pressure and high temperature gas or liquid during operation, and if there is no effective sealing means, these substances may leak to the outside of the compressor 200, resulting in energy loss, reduced system efficiency, and even environmental pollution and safety hazards. The seal 143 may be used to ensure the sealing performance of the compressor 200, preventing high pressure gas or liquid from leaking from within the compressor 200 or into the environment external to the compressor 200. Meanwhile, by using the sealing ring 143, the compressor 200 can effectively maintain the internal pressure and temperature and prevent foreign substances from entering the internal system. The sealing ring 143 may be made of a high temperature resistant and abrasion resistant material such as rubber, polytetrafluoroethylene, etc., and the sealing ring 143 may be installed at a critical portion of the compressor 200 such as a piston, a cylinder, a valve, a shaft seal, etc., to secure a sealing effect.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

The foregoing description is merely illustrative of specific embodiments of the present utility model, it should be understood that the above examples are illustrative and should not be construed as limiting the utility model, and the scope of the utility model is not limited thereto, but is intended to be included in the scope of the utility model by direct/indirect application to other related arts, by way of equivalent structural changes or substitutions made by the specification and drawings of the present utility model under the application concept of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.

Claims (10)

1. An adjustment mechanism (100) for a compressor, the adjustment mechanism (100) being for adjusting an opening degree of a guide vane structure (210), comprising:

a drive assembly (110);

-a reduction assembly (120), the reduction assembly (120) having an input shaft (121) and an output shaft (123), and a transmission ratio from the input shaft (121) to the output shaft (123) being less than 1, the input shaft (121) being connected to the drive assembly (110);

And the transmission assembly (130) is in transmission connection with the output shaft (123) and is configured for transmission connection with the guide vane structure (210).

2. The adjustment mechanism (100) of claim 1, wherein the reduction assembly (120) and the drive assembly (110) are of a split construction, the reduction assembly (120) being disposed outside the drive assembly (110).

3. The adjustment mechanism (100) according to claim 2, characterized in that the input shaft (121) of the reduction assembly (120) is connected to the shaft of the drive assembly (110) by means of a coupling (124).

4. The adjustment mechanism (100) of claim 1, wherein the transmission assembly (130) comprises:

A base (131);

-a drive worm (132), the drive worm (132) being rotatably connected to the base (131) and configured for connection to a vane structure (210);

wherein the driving worm (132) is in transmission connection with the output shaft (123).

5. The adjusting mechanism (100) according to claim 4, wherein the base (131) is provided with a first bearing seat (133) and a second bearing seat (134), the first bearing seat (133) and the second bearing seat (134) are arranged at intervals, and are provided with bearings, and two ends of the driving worm (132) are respectively connected with the bearings on the first bearing seat (133) and the second bearing seat (134).

6. The adjustment mechanism (100) of claim 4, wherein an axis of the drive worm (132) is at an angle to an axis of the output shaft (123), wherein the transmission assembly (130) further comprises:

A first bevel gear (137), the first bevel gear (137) being in driving connection with the output shaft (123);

And the second bevel gear (138), the second bevel gear (138) is in transmission connection with the driving worm (132), and the second bevel gear (138) is meshed with the first bevel gear (137).

7. The adjustment mechanism (100) of claim 4, wherein the adjustment mechanism (100) further comprises:

-a sleeve (140), said sleeve (140) being connected to said base (131);

The connecting shaft (141), the connecting shaft (141) is rotatable to be located in the axle sleeve (140), one end of connecting shaft (141) is connected output shaft (123), the other end transmission is connected driving worm (132).

8. The adjustment mechanism (100) of claim 4, wherein the drive assembly (110) comprises a stepper motor (111).

9. A compressor (200), characterized by comprising:

a compression mechanism (220);

The guide vane structure (210) is arranged at the inlet of the compression mechanism (220) and is used for adjusting the opening of the inlet;

The adjustment mechanism (100) according to any one of claims 1-8, the adjustment mechanism (100) being in driving connection with the guide vane structure (210).

10. The compressor (200) of claim 9, wherein the reduction assembly (120) is disposed external to the compressor (200);

And/or the driving assembly (110) is arranged outside the compressor (200).