Double-screw air compressor main power bearing system with buffer mechanism
By designing a main power bearing system with a buffer mechanism in a twin-screw air compressor, the problems of starting jitter and molded wire wear are solved, extending service life and reducing costs.
Patent Information
- Application Number
- CN202421257589.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-04
- Publication Date
- 2025-02-11
- Estimated Expiration
- 2034-06-04
AI Technical Summary
Twin screw air compressors are prone to jitter and noise during startup, and air pressure fluctuations cause wear of the wire, shortening service life and increasing costs.
A dual screw air compressor main power bearing system with a buffering mechanism is designed, including a driving gear, a bearing seat, an active and driven mechanism, and a buffering mechanism. The buffering mechanism is composed of two opposite discs, and the active disc and the driven disc are matched by the marbles and springs to achieve buffering and driving.
Through the design of the buffer mechanism, the wear of the driven mechanism caused by inertia is reduced, the service life of the air compressor is extended, and the maintenance cost is reduced.
Smart Images
Figure CN222458131U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of air compressor equipment, and in particular to a main power bearing system. Background Art
[0002] Twin-screw air compressors use two profiled (yin and yang) rotors to push air. The main power shaft needs to drive the (yin and yang) rotors to rotate. When the driving (yin and yang) rotors start, it is often accompanied by a huge driving force. However, the profiles of the two profiled shafts used in twin-screw air compressors are precisely matched and fragile.
[0003] At the beginning of the starting process, the motor torque is at its peak, and the (yin and yang) rotors are subjected to huge forces, which may cause shaking and contact, resulting in loud noise or even damage.
[0004] When the air pressure fluctuates greatly, the motor power may not change in coordination, causing wear on the profile, greatly reducing the service life of the twin-screw air compressor and increasing its cost of use. Utility Model Content
[0005] One object of the present application is to provide a twin-screw air compressor main power bearing system with a buffer mechanism to solve at least one of the above-mentioned technical problems.
[0006] The present application provides a twin-screw air compressor main power bearing system with a buffer mechanism, comprising a driving shaft mechanism provided with a driving gear;
[0007] The active rotating shaft mechanism comprises a bearing seat and a bearing arranged on the bearing seat;
[0008] The bearing includes an active mechanism and a driven mechanism;
[0009] The active mechanism is provided with a docking mechanism for docking with the motor;
[0010] The driven mechanism is provided with a driving gear;
[0011] A buffer mechanism is provided between the active mechanism and the driven mechanism;
[0012] The buffer mechanism has two discs facing each other, called the active disc and the driven disc;
[0013] The back side of the active disk is drivingly connected to the active mechanism, and the back side of the driven disk is drivingly connected to the driven mechanism;
[0014] The front side of the active disk is provided with evenly arranged holes, which are called active bead holes. A marble with a hemispherical surface, called an active marble, is provided in the active bead hole. A spring, called an active spring, is provided in the active bead hole. One end of the active spring abuts against the bottom of the active bead hole, and the other end abuts against the active marble. The hemispherical surface of the active marble protrudes from the surface of the active disk.
[0015] The front side of the driven disk is arranged with depressions, which are called passive depressions. The hemispherical surface of the passive depressions is adapted to the hemispherical surface of the active marble, and the two are in contact with each other.
[0016] Preferably, the front side of the driven disk is provided with evenly arranged holes, which are called passive bead holes, and a marble with a hemispherical surface is provided in the passive bead hole, which is called a passive marble; a spring is provided in the passive bead hole, which is called a passive spring, and one end of the passive spring abuts against the bottom of the passive bead hole, and the other end abuts against the passive marble, and the hemispherical surface of the passive marble protrudes from the surface of the driven disk;
[0017] The front side of the active disk is provided with depressions, which are called active depressions. The hemispherical surface of the active depressions is adapted to the hemispherical surface of the passive marbles, and the two are in contact with each other.
[0018] Preferably, the hemispherical surface of the active marble and the hemispherical surface of the passive marble are in contact with each other.
[0019] Preferably, the active bead holes and the passive recesses are arranged in annular intervals along the edge of the active disk or the driven disk.
[0020] Preferably, the distance between the active bead holes is 1.3 to 1.5 times the diameter of the circular cross-section of the active marble.
[0021] Preferably, the ratio of the diameter of the circular cross section of the active bead hole to the diameter of the active disk is 1:8 to 1:12.
[0022] Preferably, the active mechanism is drivingly connected to the active disk via a driving shaft, and the ratio of the diameter of the circular cross-section of the driving shaft to the diameter of the active disk is 1:1.2 to 1:1.8.
[0023] Compared with the prior art, the present application provides a twin-screw air compressor main power bearing system with a buffer mechanism, comprising a driving shaft mechanism provided with a driving gear; the driving shaft mechanism has a bearing seat and a bearing arranged on the bearing seat; the bearing comprises a driving mechanism and a driven mechanism; the driving mechanism is provided with a docking mechanism for docking with the motor; the driven mechanism is provided with a driving gear; a buffer mechanism is provided between the driving mechanism and the driven mechanism; the buffer mechanism has two discs facing each other on the front side, called a driving disc and a driven disc; the back side of the driving disc is drivingly connected to the driving mechanism, and the back side of the driven disc is connected to the driving mechanism. The surface is connected to the driven mechanism by driving; the front of the active disk is provided with holes arranged evenly, which are called active bead holes, and a marble with a hemispherical surface is arranged in the active bead hole, which is called the active marble; a spring is arranged in the active bead hole, which is called the active spring, and one end of the active spring abuts the bottom of the active bead hole, and the other end abuts the active marble, and the hemispherical surface of the active marble protrudes from the surface of the active disk; the front of the driven disk is arranged with depressions, which are called passive depressions, and the hemispherical surface of the passive depression is adapted to the hemispherical surface of the active marble, and the two are in contact. When the active structure is started, the active marble in the active disk extends into the passive depression of the corresponding driven disk to drive the driven disk to rotate. When the driving force is too large, the active marble relies on its own hemispherical surface to slide out of the passive depression and retract into the active bead hole. When it turns back to the passive depression, it relies on the active spring to pop out and embed into the corresponding passive depression, and drives the driven disk again. This allows the driven disk to slowly drive the driven mechanism, preventing the driven mechanism from having a large inertia, which causes wear on the twin-screw air compressor profile, greatly reducing the service life of the twin-screw air compressor, thereby reducing the possibility of profile wear, increasing the service life of the twin-screw air compressor, and reducing the cost of use. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] Other features, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings:
[0025] Figure 1 This is a schematic diagram of one embodiment of a driving gear of a main power bearing system of a twin-screw air compressor with a buffer mechanism described in the present application;
[0026] Figure 2 This is a schematic diagram of one embodiment of the twin-screw air compressor buffer type active power bearing described in this application;
[0027] Figure 3 A schematic diagram of one embodiment of an active disk of a buffer mechanism of a main power bearing system of a twin-screw air compressor with a buffer mechanism described in the present application;
[0028] Figure 4A schematic diagram of one embodiment of a driven disc of a buffer mechanism of a main power bearing system of a twin-screw air compressor with a buffer mechanism described in the present application;
[0029] Figure 5 A front view of one embodiment of the active disk of the buffer mechanism of the active power bearing system of the twin-screw air compressor with a buffer mechanism described in the present application;
[0030] Figure 6 A cross-sectional view of one embodiment of the buffer mechanism of the main power bearing system of the twin-screw air compressor with a buffer mechanism described in the present application;
[0031] The same or similar reference numerals in the drawings represent the same or similar components. DETAILED DESCRIPTION
[0032] Combine the following Figure 1 The above method of the present application is further elaborated.
[0033] The present application provides a twin-screw air compressor main power bearing system with a buffer mechanism, comprising a driving shaft mechanism provided with a driving gear 4, the driving shaft mechanism having a bearing seat, and a bearing arranged on the bearing seat; the bearing comprises a driving mechanism 2 and a driven mechanism 3; the driving mechanism 2 is provided with a docking mechanism for docking with the motor; the driven mechanism 3 is provided with a driving gear 4; a buffer mechanism 1 is provided between the driving mechanism 2 and the driven mechanism 3; the buffer mechanism 1 has two discs facing each other on the front side, namely a driving disc 11 and a driven disc 12; the back side of the driving disc 11 is drivingly connected to the driving mechanism 2, and the back side of the driven disc 12 is drivingly connected to the driven mechanism 3;
[0034] The front side of the active disk is provided with evenly arranged holes, which are called active bead holes. A marble with a hemispherical surface, called an active marble, is provided in the active bead hole. A spring, called an active spring, is provided in the active bead hole. One end of the active spring abuts against the bottom of the active bead hole, and the other end abuts against the active marble. The hemispherical surface of the active marble protrudes from the surface of the active disk.
[0035] The front side of the driven disk is arranged with depressions, which are called passive depressions. The hemispherical surface of the passive depressions is adapted to the hemispherical surface of the active marble, and the two are in contact with each other.
[0036] The buffer mechanism 1 is connected between the driven mechanism 3 and the active mechanism 2, and has an active disk 11 and a driven disk 12. The active disk 11 is provided with an active marble 111 that can be retracted and extended in the active bead hole, and the driven disk 12 is provided with a passive depression adapted to the active pop-up. When the active mechanism 2 is started, the active marble 111 in the active disk 11 extends into the passive depression of the corresponding driven disk 12 to drive the driven disk 12 to rotate. When the driving force is too large, the active marble 111 relies on its own hemispherical surface to slide out of the passive depression and retract into the active bead hole. When it turns back to the passive depression, it relies on the active spring 113 to pop out and embed into the corresponding passive depression, thereby driving the driven disk 12 again. Thereby, the driven disk 12 can slowly drive the driven mechanism 3, preventing the female screw rotor 4 from being unable to follow the driven mechanism 3 in time due to its large inertia, causing the rotation speed of the two screws to be inconsistent, resulting in profile wear, and greatly reducing the service life of the twin-screw air compressor. This reduces the possibility of profile wear, increases the service life of the twin-screw air compressor, and reduces the cost of use.
[0037] In some embodiments of the present application, the front side of the driven disk 12 is provided with evenly arranged holes, which are called passive bead holes. A marble with a hemispherical surface, called a passive marble, is provided in the passive bead hole. A spring, called a passive spring, is provided in the passive bead hole. One end of the passive spring abuts against the bottom of the passive bead hole, and the other end abuts against the passive marble. The hemispherical surface of the passive marble protrudes from the surface of the driven disk 12.
[0038] The front side of the active disk 11 is provided with depressions, called active depressions 112 . The hemispherical surface of the active depressions 112 is adapted to the hemispherical surface of the passive marble, and the two are in contact with each other.
[0039] The driven disk 12 can be configured accordingly, and the passive marble on the driven disk 12 is embedded in the active recess 112 so that the active disk 11 drives the driven disk 12 to rotate. When the driving force is too large, the passive marble slides out of the active recess 112 and retracts into the passive bead hole by relying on its own hemispherical surface. When it returns to the active recess 112, it is ejected by relying on the passive spring and embedded in the corresponding active and passive recesses to drive the driven disk 12 again. In this way, there are more contact surfaces between the active disk 11 and the driven disk 12, which increases the friction between the two and makes the transmission efficiency between the two higher.
[0040] In some embodiments of the present application, the hemispherical surface of the active marble 111 and the hemispherical surface of the passive marble are in contact with each other.
[0041] The transmission can be achieved not only through the cooperation between the active marble 111 and the passive depression, or the cooperation between the passive marble and the active depression 112, but also through the cooperation between the active marble 111 and the passive marble. Both the active marble 111 and the passive marble have hemispherical surfaces. The contact between the hemispherical surfaces of the two can increase a certain friction force. When the driving force of the active mechanism 2 is too large, the active marble 111 or the passive marble can be retracted into the corresponding active bead hole or passive bead hole, so that the two are staggered with each other. After staggering, they rely on their corresponding active spring 113 or passive spring to pop out, and stagger again when they meet next time. Through the cooperation between the active marble 111 and the passive marble, the contact area between the active disk 11 and the driven disk 12 is further increased, the friction between the two is increased, and the transmission efficiency between the two is further improved.
[0042] In some embodiments of the present application, the active bead holes and the active recesses 112 are arranged in a ring-shaped manner at intervals along the edge of the active disk 11 .
[0043] The active bead holes and the active recesses 112 can be arranged in a ring shape and spaced apart from each other, so that the driven disk 12 can rotate with the active disk 11, and the passive marbles can continuously contact different active recesses 112 and different active marbles 111, and the driven disk 12 can also have the same corresponding settings, thereby further increasing the contact between the active disk 11 and the driven disk 12 and further improving the transmission efficiency between the two.
[0044] In some embodiments of the present application, the distance between the active bead holes is 1.3 to 1.5 times the diameter of the circular cross-section of the passive marble.
[0045] When the active disk 11 rotates, the passive marble is in continuous contact between the active depression 112 and the active marble 111 until the rotation speed of the active disk 11 and the driven disk 12 is consistent. In this process, because the passive marble needs to move between the active depression 112 and the active marble 111, the passive spring reciprocates in the passive bead hole. If the passive marble cannot rebound in time between two adjacent active marbles 111, it cannot be embedded in the active depression 112. Therefore, there needs to be a sufficient distance between two adjacent active bead holes. However, too large a distance will affect the arrangement number of the active bead holes and the transmission effect. After testing, the distance between the active bead holes is 1.3 to 1.5 times the diameter of the circular cross-section of the passive marble, which can make the passive marble embedded in the active depression 112 at the normal working speed of the active disk 11 without affecting the arrangement density of the active bead holes, thereby ensuring the transmission efficiency.
[0046] In some embodiments of the present application, the ratio of the diameter of the circular cross section of the active bead hole to the diameter of the active disk 11 is 1:8 to 1:12.
[0047] During use, it was found that when the hemispherical surface of the active marble 111 and the hemispherical surface of the passive marble come into contact, the two rely on the corresponding active spring 113 and the passive spring to support each other and slide on each other's hemispherical surface. The sliding distance determines the friction time between the active disk 11 and the driven disk 12, thereby affecting the transmission efficiency between the active disk 11 and the driven disk 12. If the sliding distance is too short, the transmission efficiency is low, and if it is too long, the arrangement of the active bead holes is too small, which will also reduce the transmission efficiency. After testing, the ratio of the diameter of the circular cross-section of the active bead hole to the diameter of the active disk 11 is configured to be 1:8 to 1:12, which can achieve a better balance, and the transmission efficiency will not be affected by the short sliding distance or the small distribution of the active marbles 111.
[0048] In some embodiments of the present application, the active mechanism 2 has a driving shaft, and the ratio of the diameter of the circular cross-section of the driving shaft to the diameter of the active disk 11 is 1:1.2 to 1:1.8.
[0049] In actual use, under the same power consumption, the smaller the ratio of the diameter of the circular cross-section of the driving shaft to the diameter of the active disk 11, the lower the transmission efficiency of the buffer mechanism 1, because an oversized active disk 11 will increase energy consumption. If the ratio of the diameter of the circular cross-section of the driving shaft to the diameter of the active disk 11 is too large, the arrangement of the active marbles 111 and the passive depressions between the active disk 11 and the driven disk 12 will be reduced, thereby reducing the contact area between the two. Therefore, setting the ratio of the diameter of the circular cross-section of the driving shaft to the diameter of the active disk 11 to 1:1.2 to 1:1.8 can further improve the transmission efficiency and avoid excessive energy consumption, thereby further reducing the cost of use.
[0050] Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to include these modifications and variations.
[0051] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any figure mark in the claims should not be regarded as limiting the claims involved. In addition, it is obvious that the word "comprising" does not exclude other units or steps, and the singular does not exclude the plural. Multiple units or devices stated in the device claim can also be implemented by one unit or device through software or hardware. The words first, second, etc. are used to indicate names, and do not indicate any particular order.
Claims
1. A twin-screw air compressor main power bearing system with a buffer mechanism, comprising a driving shaft mechanism provided with a driving gear, characterized in that: The active rotating shaft mechanism comprises a bearing seat and a bearing arranged on the bearing seat; The bearing includes an active mechanism and a driven mechanism; The active mechanism is provided with a docking mechanism for docking with the motor; The driven mechanism is provided with a driving gear; A buffer mechanism is provided between the active mechanism and the driven mechanism; The buffer mechanism has two discs facing each other, called the active disc and the driven disc; The back side of the active disk is drivingly connected to the active mechanism, and the back side of the driven disk is drivingly connected to the driven mechanism; The front side of the active disk is provided with evenly arranged holes, which are called active bead holes. A marble with a hemispherical surface, called an active marble, is provided in the active bead hole. A spring, called an active spring, is provided in the active bead hole. One end of the active spring abuts against the bottom of the active bead hole, and the other end abuts against the active marble. The hemispherical surface of the active marble protrudes from the surface of the active disk. The front side of the driven disk is arranged with depressions, which are called passive depressions. The hemispherical surface of the passive depressions is adapted to the hemispherical surface of the active marble, and the two are in contact with each other.
2. The twin-screw air compressor main power bearing system with a buffer mechanism according to claim 1, characterized in that: The front side of the driven disk is provided with evenly arranged holes, which are called passive bead holes. A marble with a hemispherical surface, which is called a passive marble, is provided in the passive bead hole. A spring, which is called a passive spring, is provided in the passive bead hole. One end of the passive spring abuts against the bottom of the passive bead hole, and the other end abuts against the passive marble. The hemispherical surface of the passive marble protrudes from the surface of the driven disk. The front side of the active disk is provided with depressions, which are called active depressions. The hemispherical surface of the active depressions is adapted to the hemispherical surface of the passive marbles, and the two are in contact with each other.
3. The twin-screw air compressor main power bearing system with a buffer mechanism according to claim 2, characterized in that: The hemispherical surface of the active marble and the hemispherical surface of the passive marble are in contact with each other.
4. The twin-screw air compressor main power bearing system with a buffer mechanism according to claim 1, characterized in that: The active bead holes and the passive recesses are arranged in annular patterns at intervals along the edge of the active disk or the driven disk.
5. The twin-screw air compressor main power bearing system with a buffer mechanism according to claim 4, characterized in that: The distance between the active bead holes is 1.3 to 1.5 times the diameter of the circular cross section of the active marble.
6. The twin-screw air compressor main power bearing system with a buffer mechanism according to claim 1, characterized in that: The ratio of the diameter of the circular cross section of the active bead hole to the diameter of the active disk is 1:8 to 1:
12.
7. The twin-screw air compressor main power bearing system with a buffer mechanism according to claim 1, characterized in that: The active mechanism is drivingly connected to the active disk via a driving shaft, and the ratio of the diameter of the circular cross section of the driving shaft to the diameter of the active disk is 1:1.2 to 1:1.8.