Buffer structure for screw compressor
By setting top and bottom buffer components on the screw compressor to form a two-way shock absorption structure, the problem that the buffer structure in the prior art cannot absorb the impact force in the vertical direction is solved, thereby achieving equipment stability and reducing wear, reducing noise and improving the structural load-bearing capacity.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WUXI WOYO SUPERDO COMPRESSOR
- Filing Date
- 2025-07-11
- Publication Date
- 2026-05-19
AI Technical Summary
The existing screw compressor's buffer structure cannot effectively absorb the impact force in the vertical direction of the compressor, resulting in radial unbalanced wear of the rotor and insufficient support strength, which affects the stability and positional stability of the equipment.
The compressor is cushioned and damped on both sides by top and bottom buffer components. Combined with the mounting area and buffer zone of the support plate, a two-way damping structure is formed to enhance the stability of the equipment.
It effectively reduces compressor wear, maintains equipment stability, lowers maintenance costs, extends equipment life, reduces noise, and improves structural load-bearing capacity.
Smart Images
Figure CN224260808U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of air compression equipment technology, and in particular to a buffer structure for a screw compressor. Background Technology
[0002] Screw compressors are rotary compressors that rely on the meshing of two helical rotors for compression. They are currently mainly used in large-scale refrigeration systems, air compression, and various industrial processes. Their advantages include high reliability, convenient operation and maintenance, and good dynamic balance.
[0003] Chinese utility model patent application number 201911411659.5 discloses a buffer base for an air compressor. This patent buffers the vibration generated by the compressor by setting a double-layer base at the bottom of the compressor and adding buffer material between the two layers. However, the above structure has low support strength and cannot guarantee the positional stability of the compressor; moreover, it only buffers the bottom of the compressor and cannot absorb the upward impact force of the compressor, which will lead to radial unbalanced wear of the compressor rotor. Utility Model Content
[0004] To address the aforementioned technical problems, this utility model provides a buffer structure for screw compressors. By setting up top and bottom buffer components, the upper and lower sides of the compressor are buffered and vibration-damped, effectively enhancing the operational stability of the equipment.
[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0006] This utility model provides a buffer structure for a screw compressor, including a support plate, a top connecting frame, a top buffer assembly, and a bottom buffer assembly. The support plate includes a first surface and a second surface, the first surface being the upper surface of the support plate and the second surface being the lower surface of the support plate. The first surface includes a mounting area and a buffer zone. The top and bottom ends of the top buffer assembly are both elastic connection ends. The top connecting frame is disposed on the side of the support plate; the top end of the top buffer assembly is elastically connected to the top connecting frame; the bottom end of the top buffer assembly is elastically connected to the buffer zone; the bottom buffer assembly is disposed at the bottom of the support plate; and the bottom buffer assembly is elastically connected to the second surface. The top buffer assembly is configured to buffer the first surface; the bottom buffer assembly is configured to buffer the second surface; and the mounting area is configured to mount the screw compressor.
[0007] The buffer structure for a screw compressor provided by this utility model preferably has a top connecting frame with a frame plate extending above the buffer zone; the top buffer assembly includes a spring, a first mounting ring and a second mounting ring; the first mounting ring is installed at the bottom of the frame plate; the second mounting ring is installed in the buffer zone; and the two ends of the spring are respectively connected to the first mounting ring and the second mounting ring.
[0008] The buffer structure for a screw compressor provided by this utility model preferably includes a guide rod in the top buffer assembly; a guide hole is provided at the bottom of the frame plate; the guide hole is located inside the second mounting ring; the guide rod is located on the inner ring side of the spring; the bottom end of the guide rod is connected to the inner side of the first mounting ring; the top end of the guide rod is located inside the second mounting ring, and the top end of the guide rod extends into the guide hole.
[0009] The buffer structure for a screw compressor provided by this utility model preferably has a guide hole that extends through the frame plate; the diameter of the guide hole is larger than the diameter of the guide rod; the top end of the guide rod extends from the guide hole to the top of the frame plate; and a buffer material is provided between the inner wall of the guide hole and the guide rod.
[0010] The buffer structure for screw compressors provided by this utility model preferably has an air piston as the bottom buffer component.
[0011] The buffer structure for screw compressors provided by this utility model preferably has several fixed corner plates at the edge of the installation area.
[0012] The above technical solution has the following advantages or beneficial effects: This utility model provides a buffer structure for a screw compressor, relating to the field of air compression equipment technology, including a support plate, a top connecting frame, a top buffer assembly, and a bottom buffer assembly; the upper and lower surfaces of the support plate are respectively a first surface and a second surface, the first surface including an installation area and a buffer zone; the top end of the top buffer assembly is elastically connected to the top connecting frame; the bottom end of the top buffer assembly is elastically connected to the buffer zone; the bottom buffer assembly is located at the bottom of the support plate; the bottom buffer assembly is elastically connected to the second surface; the top buffer assembly is configured to buffer the first surface; the bottom buffer assembly is configured to buffer the second surface; the installation area is configured to install the screw compressor. This utility model provides a buffer structure for a screw compressor, which, by setting the top buffer assembly and the bottom buffer assembly, buffers and reduces vibration on both sides of the compressor, effectively enhancing the operational stability of the equipment. Attached Figure Description
[0013] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.
[0014] Figure 1An overall structural diagram of a buffer structure for a screw compressor provided in Embodiment 1 of this utility model;
[0015] Figure 2 A structural diagram of a top buffer assembly for a buffer structure of a screw compressor provided in Embodiment 1 of this utility model;
[0016] Figure 1-2 Includes: 1. Support plate; 11. Mounting area; 12. Buffer zone; 2. Top connecting frame; 21. Frame plate; 3. Top buffer assembly; 31. Spring; 32. First mounting ring; 33. Second mounting ring; 34. Guide rod; 35. Guide hole; 4. Bottom buffer assembly; 5. Corner plate. Detailed Implementation
[0017] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.
[0018] Example 1:
[0019] like Figure 1-2 As shown:
[0020] In the utility model patent with Chinese patent application number 201911411659.5, the compressor can only absorb vertical downward vibrations. If it relies solely on the lower spring for shock absorption, the equipment is prone to shaking or even tilting when subjected to a large external impact or when the operating conditions change abruptly, which will further lead to radial unbalanced wear of the compressor rotor.
[0021] To balance the torsional vibration of a compressor, this utility model provides a buffer structure for a screw compressor, including a support plate 1, a top connecting frame 2, a top buffer assembly 3, and a bottom buffer assembly 4. The support plate 1 includes a first surface and a second surface, the first surface being the upper surface of the support plate 1 and the second surface being the lower surface of the support plate 1. The first surface includes a mounting area 11 and a buffer zone 12. The top and bottom ends of the top buffer assembly 3 are both elastically connected ends. The top connecting frame 2 is located on the side of the support plate 1. The top end of the top buffer assembly 3 is elastically connected to the top connecting frame 2. The bottom end of the top buffer assembly 3 is elastically connected to the buffer zone 12. The bottom buffer assembly 4 is located at the bottom of the support plate 1 and is elastically connected to the second surface. The top buffer assembly 3 is configured to buffer the first surface, and the bottom buffer assembly 4 is configured to buffer the second surface. The mounting area 11 is configured to mount the screw compressor.
[0022] The compressor is fixedly installed in the installation area 11, with the top connecting frame 2 and the bottom buffer assembly 4 both mounted on the ground or other fixed bases. Vibrations generated during compressor operation are transmitted to the top buffer assembly 3 and the bottom buffer assembly 4, which buffer the vibrations, forming a bidirectional shock absorption structure that disperses and absorbs vibration energy from multiple directions. Because the top buffer assembly 3 and the bottom buffer assembly 4 together provide opposing restoring forces, the equipment maintains a stable posture. This not only ensures the relative stability of the compressor's internal components, reducing wear caused by shaking, but also prevents damage to connecting pipes and lines due to equipment instability, extending the overall service life of the equipment and reducing maintenance costs.
[0023] On the other hand, the top buffer assembly 3 can share the load of the bottom buffer assembly 4, thus preventing excessive local stress on the bottom buffer assembly 4 from causing damage.
[0024] The present invention provides a buffer structure for a screw compressor, which buffers the upper and lower sides of the compressor by setting a top buffer assembly 3 and a bottom buffer assembly 4, thereby maintaining the stable posture of the compressor and reducing wear; in addition, the load on the bottom buffer assembly 4 is reduced by suspending the support plate 1 by the top buffer assembly 3, thereby improving the load-bearing capacity of the overall structure.
[0025] In a preferred embodiment of this example, the top connecting frame 2 has a frame plate 21 extending above the buffer zone 12. The top buffer assembly 3 includes a spring 31, a first mounting ring 32, and a second mounting ring 33. The first mounting ring 32 is mounted on the bottom of the frame plate 21, and the second mounting ring 33 is mounted on the buffer zone 12. The two ends of the spring 31 are connected to the first mounting ring 32 and the second mounting ring 33, respectively. The first mounting ring 32 and the second mounting ring 33 are used to mount and position the spring 31, and the frame plate 21 suspends the support plate 1 via the spring 31. Under normal operating conditions, the spring 31 should always be under tension to bear part of the load on the support plate 1. The spring 31 also absorbs the vibration energy generated by the compressor, maintaining the stability of the compressor.
[0026] The present invention provides a buffer structure for a screw compressor, which is elastically suspended from the support plate 1 by the top connecting frame 2. While buffering the vibration of the compressor, it can also bear part of the load.
[0027] If the support plate 1 is suspended solely by the spring 31, the overall buffer structure's resistance to horizontal vibrations of the compressor will be reduced. To improve horizontal stability, in a preferred embodiment, the top buffer assembly 3 further includes a guide rod 34. The bottom of the frame plate 21 has a guide hole 35 located inside the second mounting ring 33. The guide rod 34 is located on the inner ring side of the spring 31. The bottom end of the guide rod 34 is connected to the inner side of the first mounting ring 32. The top end of the guide rod 34 is located inside the second mounting ring 33, and extends into the guide hole 35. In a static state, the guide rod 34 does not fully penetrate the guide hole 35; this allowance provides sufficient space for the upward movement of the guide rod 34 during vibration.
[0028] The present invention provides a buffer structure for a screw compressor, which limits the guide rod 34 in the horizontal direction by setting a guide hole 35, thereby effectively improving the stability of the compressor in the horizontal direction.
[0029] Although the guide hole 35 can limit the support plate 1 through the guide rod 34, the vibration during compressor operation will cause the guide rod 34 to frequently collide or rub against the guide hole 35, generating significant noise. To reduce noise generation, in a preferred embodiment, the guide hole 35 extends through the frame plate 21; the diameter of the guide hole 35 is larger than the diameter of the guide rod 34; the top end of the guide rod 34 extends from the guide hole 35 to the top of the frame plate 21; and a buffer material is provided between the inner wall of the guide hole 35 and the guide rod 34. Providing a buffer material between the guide rod 34 and the inner wall of the guide hole 35 reduces the impact force of their collision, thus lowering noise. The buffer material can be made of nylon, which is soft and also acts as a lubricant, reducing friction.
[0030] The present invention provides a buffer structure for a screw compressor, which reduces the impact force of the collision between the guide rod 34 and the inner wall of the guide hole 35 by setting a buffer material between the two, thereby effectively reducing noise.
[0031] In a preferred embodiment, the bottom buffer assembly 4 is an air piston.
[0032] In a preferred embodiment, the edge of the mounting area 11 is provided with several fixing angle plates 5. The angle plates 5 can provide fixing points for fixing the compressor.
[0033] Other embodiments of this application will readily occur to those skilled in the art upon consideration of the specification and practice of the application filed herein. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and include common knowledge or customary techniques in the art not claimed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this application are indicated by the appended claims.
[0034] It should be understood that this application is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this application is limited only by the appended claims.
Claims
1. A buffer structure for a screw compressor, characterized in that, It includes a support plate, a top connecting frame, a top buffer assembly, and a bottom buffer assembly; the support plate includes a first surface and a second surface, the first surface being the upper surface of the support plate; the second surface being the lower surface of the support plate; the first surface includes a mounting area and a buffer zone; the top and bottom ends of the top buffer assembly are both elastic connecting ends; wherein: The top connection is mounted on the side of the support plate; The top of the top buffer assembly is elastically connected to the top connecting frame; The bottom end of the top buffer assembly is elastically connected to the buffer. The bottom buffer assembly is located at the bottom of the support plate; The bottom buffer assembly is elastically connected to the second surface; The top buffer assembly is configured to buffer the first surface; The bottom buffer assembly is configured to buffer the second surface; The mounting area is configured to mount a screw compressor.
2. The buffer structure for a screw compressor according to claim 1, characterized in that, The top connecting frame is provided with a frame plate extending above the buffer zone; the top buffer assembly includes a spring, a first mounting ring and a second mounting ring; the first mounting ring is installed at the bottom of the frame plate; the second mounting ring is installed in the buffer zone; the two ends of the spring are respectively connected to the first mounting ring and the second mounting ring.
3. The buffer structure for a screw compressor according to claim 2, characterized in that, The top buffer assembly also includes a guide rod; the bottom of the frame plate is provided with a guide hole; the guide hole is located inside the second mounting ring; the guide rod is located on the inner ring side of the spring; the bottom end of the guide rod is connected to the inner side of the first mounting ring; the top end of the guide rod is located inside the second mounting ring, and the top end of the guide rod extends into the guide hole.
4. The buffer structure for a screw compressor according to claim 3, characterized in that, The guide hole extends through the frame plate; the diameter of the guide hole is larger than the diameter of the guide rod; the top end of the guide rod extends from the guide hole to the top of the frame plate; a buffer material is provided between the inner wall of the guide hole and the guide rod.
5. The buffer structure for a screw compressor according to claim 1, characterized in that, The bottom buffer assembly is an air piston.
6. The buffer structure for a screw compressor according to claim 1, characterized in that, Several fixed corner plates are provided at the edge of the installation area.