A refrigeration screw compressor suction end base structure

Abstract

The utility model relates to the technical field of compressor and disclose a kind of refrigeration screw compressor suction end seat structure, solve the overall casting of compressor suction end seat in prior art and cause wear and tear with rotor, the defect that suction end seat production cycle is long. The refrigeration screw compressor suction end seat structure, including end seat main body: the center of the end seat main body is equipped with bearing block, the inner side of the bearing block is also equipped with clamping groove, the outer side of the bearing block is equipped with second dismounting hole, the center of the bearing block is provided with mounting mechanism, the inner side of the mounting mechanism is provided with bellows spring, the inner side of the bellows spring is connected with elastic pad, modular dismounting maintenance is realized by being provided with detachable mounting mechanism, reduce maintenance time, and fall off in the process of being fixed by being provided with bellows spring to avoid threaded peg, ensure long use.

Description

Technical Field

[0001] This utility model relates to the field of compressor technology, and in particular to a suction end seat structure for a refrigeration screw compressor. Background Technology

[0002] Twin-screw compressors have made leaps and bounds in the past 50 years. Their superior technical characteristics have made them shine in the fields of gas compression and refrigeration systems. However, compared with other traditional compressors, they have higher structural precision, more difficult manufacturing and assembly processes, and higher technical requirements for processing, assembly and maintenance personnel. This has restricted the production of this product by small and medium-sized enterprises, and the production and operating costs are also high.

[0003] The "integrated twin-screw refrigeration compressor" disclosed in the prior art disclosure number "CN201502529U" uses a single body to replace the traditional two- or three-section body, which improves coaxial precision, reduces the workload of processing, assembly, and maintenance, increases efficiency and lifespan, and does not have high requirements for production equipment and personnel. It is a new model with high cost performance, high reliability, and easy production, and is particularly suitable for mass production.

[0004] Regarding the above-mentioned and existing related technologies, the inventors believe that the following defects often exist:

[0005] The suction end seat of the existing refrigeration screw compressor is integrally cast and machined. During the operation of the compressor, if there is an imbalance of axial force or failure of the induction bearing, it is easy to cause wear between the rotor and the end seat, resulting in rotor wear. In severe cases, the suction end seat will be worn out and scrapped. The integrally cast suction end seat has a long processing cycle and high manufacturing cost. In some special chemical processes, the long compressor repair time will cause unnecessary production reduction or shutdown. Utility Model Content

[0006] The technical problem to be solved by this utility model is that the integral casting of the compressor suction end seat in the prior art is prone to wear with the rotor, and the production cycle of the suction end seat is long. To this end, we propose a suction end seat structure for a refrigeration screw compressor.

[0007] To achieve the above objectives, this application adopts the following technical solution: a suction end seat structure for a refrigeration screw compressor, comprising an end seat body: a bearing block is provided at the center of the end seat body, a slot is provided on the inner side of the bearing block, a second disassembly hole is provided on the outer side of the bearing block, an installation mechanism is provided at the center of the bearing block, a corrugated spring is provided on the inner side of the installation mechanism, and an elastic pad is connected to the inner side of the corrugated spring.

[0008] Preferably, bearing blocks are symmetrically distributed on both sides of the center of the end seat body. The bearing blocks are divided into male and female bearing blocks. The bearing blocks are used to limit and fix the rotor, and the rotor is limited by the bearing blocks to facilitate the operation of the compressor.

[0009] Preferably, the installation mechanism includes a disassembly end seat, a wear-resistant block, a first threaded hole, a first disassembly hole, and an elastic retaining ring. The diameter of the disassembly end seat is the same as the diameter of the bearing block. The disassembly end seat drives the overall structure to be disassembled, which facilitates modular disassembly.

[0010] Preferably, the center of the disassembly end seat has a first threaded hole evenly distributed, the first threaded hole and the first disassembly hole are staggered, the length of the first disassembly hole is greater than the length of the first threaded hole, and the first threaded hole is used to fix the threaded nail to ensure the stability of the disassembly end seat.

[0011] Preferably, the first threaded hole and the first disassembly hole are also staggered on the outer side of the bearing block. The first disassembly hole penetrates the bearing block to the position of the retaining groove. The elastic retaining ring is disassembled using the first disassembly hole, thereby quickly completing the disassembly of the disassembly end seat.

[0012] Preferably, the elastic retaining ring and the wear-resistant block are installed as an integral unit. The wear-resistant block is located inside the disassembly end seat. The wear-resistant block and the disassembly end seat are installed as an integral unit. The wear-resistant block reduces the probability of wear on the end seat. When the wear-resistant block is damaged, it can be replaced separately.

[0013] Preferably, the center of the slot coincides with the center of the bearing block, the slot and the elastic retaining ring are interlocked, and the diameter of the slot is slightly larger than the diameter of the elastic retaining ring. The slot is used to fix the elastic retaining ring and prevent the threaded pin from falling off.

[0014] Preferably, the elastic pad forms a spring buffer structure with the corrugated spring and the disassembly end seat. The elastic pad is located inside the receiving groove, which is located on the inner side of the disassembly end seat. The elastic pad is tightly attached to the outer side of the bearing block. Through the cooperation of the elastic pad and the corrugated spring, the buffer of the disassembly end seat is increased, and the fixing effect of the threaded nail is further enhanced.

[0015] The technical effects and advantages of this utility model are as follows:

[0016] In this invention, the worn end seat can be quickly disassembled, reducing maintenance time: by setting an elastic locking block that cooperates with the wear-resistant layer, it is integrated and installed on the top of the disassembly end seat. The wear-resistant block reduces wear, and the elastic locking block is nested inside the bearing block. The nesting structure allows for quick and easy fixing and installation. It is also fixed and installed in conjunction with the threaded nail, which facilitates quick disassembly and maintenance.

[0017] In this invention, the long-term fixation of the threaded nail is ensured and the threaded nail is prevented from falling off: a storage groove is provided on the inner side of the disassembly end seat, which cooperates with an elastic pad. The elastic pad is connected to the disassembly end seat through a corrugated spring. When the disassembly end seat is vibrated during use, the corrugated spring and the elastic pad work together to absorb the vibration, thereby reducing the vibration of the threaded nail and preventing the threaded nail from falling off. Attached Figure Description

[0018] The disclosure of this utility model is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings, the same reference numerals are used to refer to the same parts:

[0019] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention;

[0020] Figure 2 This is a three-dimensional structural diagram of the bearing block of this utility model;

[0021] Figure 3 This is a schematic diagram of the exploded structure of the bearing block of this utility model;

[0022] Figure 4 This is a schematic diagram of the explosive structure of the elastic pad of this utility model.

[0023] Legend: 1. End seat body; 2. Mounting mechanism; 201. Disassemble end seat; 202. Wear-resistant block; 203. First threaded hole; 204. First disassembly hole; 205. Elastic retaining ring; 3. Bearing block; 4. Recess; 5. Elastic pad; 6. Second disassembly hole; 7. Corrugated spring; 8. Storage groove. Detailed Implementation

[0024] It is readily understood that, based on the technical solution of this utility model, those skilled in the art can propose various interchangeable structural methods and implementations without altering the essential spirit of this utility model. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative descriptions of the technical solution of this utility model and should not be considered as the entirety of this utility model or as limitations or restrictions on the technical solution of this utility model.

[0025] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, this utility model provides a technical solution: a suction end seat structure for a refrigeration screw compressor, including an end seat body 1: a bearing block 3 is provided at the center of the end seat body 1, a slot 4 is provided on the inner side of the bearing block 3, a second disassembly hole 6 is provided on the outer side of the bearing block 3, an installation mechanism 2 is provided at the center of the bearing block 3, a corrugated spring 7 is provided on the inner side of the installation mechanism 2, and an elastic pad 5 is connected to the inner side of the corrugated spring 7.

[0026] Reference Figure 1 , Figure 3 and Figure 4 As shown in this embodiment: bearing blocks 3 are symmetrically distributed on both sides of the center of the end seat body 1. The bearing blocks 3 are divided into male and female bearing blocks 3. The bearing blocks 3 are used to limit and fix the rotor. By limiting the rotor through the bearing blocks 3, it is convenient for the compressor to work. The center of the slot 4 coincides with the center of the bearing block 3. The slot 4 and the elastic retaining ring 205 have a mutual locking structure. The diameter of the slot 4 is slightly larger than the diameter of the elastic retaining ring 205. The slot 4 fixes the elastic retaining ring 205 to prevent the threaded nail from falling off.

[0027] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown in this embodiment: the installation mechanism 2 includes a disassembly end seat 201, a wear-resistant block 202, a first threaded hole 203, a first disassembly hole 204, and an elastic retaining ring 205. The diameter of the disassembly end seat 201 is the same as the diameter of the bearing block 3. The disassembly end seat 201 drives the entire structure to be disassembled, facilitating modular disassembly. The first threaded holes 203 are evenly distributed in the center of the disassembly end seat 201. The first threaded holes 203 and the first disassembly holes 204 are staggered. The length of the first disassembly hole 204 is greater than the length of the first threaded hole 203. The first threaded holes 203 are used for threaded fixation to ensure... To ensure the stability of the disassembly end seat 201, the first threaded hole 203 and the first disassembly hole 204 are also staggered on the outside of the bearing block 3. The first disassembly hole 204 penetrates the bearing block 3 to the position of the retaining groove 4. The elastic retaining ring 205 is disassembled using the first disassembly hole 204, thereby quickly completing the disassembly of the disassembly end seat 201. The elastic retaining ring 205 and the wear-resistant block 202 are installed as an integral unit. The wear-resistant block 202 is located inside the disassembly end seat 201 and is installed as an integral unit. The wear-resistant block 202 reduces the probability of wear on the end seat. When the wear-resistant block 202 is damaged, it can be replaced separately.

[0028] Reference Figure 1 , Figure 2 and Figure 4 As shown in this embodiment: the elastic pad 5 forms a spring buffer structure with the corrugated spring 7 and the disassembly end seat 201. The elastic pad 5 is located inside the receiving groove 8, which is located on the inner side of the disassembly end seat 201. The elastic pad 5 is tightly attached to the outer side of the bearing block 3. Through the cooperation of the elastic pad 5 and the corrugated spring 7, the buffer of the disassembly end seat 201 is increased, and the fixing effect of the threaded nail is further strengthened.

[0029] Working principle: First, during installation, align the wear-resistant block 202 and elastic retaining ring 205 on the inner side of the disassembly end seat 201 with the bearing block 3, and push them inward with force to deform the elastic retaining ring 205, thus pushing it to the inner side of the bearing block 3 until it reaches the position of the retaining groove 4. The elastic retaining ring 205 then resets, completing the locking and fixing. Then, rotate the disassembly end seat 201 so that the first disassembly hole 204 aligns with the second disassembly hole 6 of the bearing block 3. Finally, the fixing work is completed by using threaded nails. The inner side of the first disassembly hole 204 is also provided with threads, and threaded nails are also used to insert them. If convenient, a hydraulic press can be used to push the disassembly end seat 201 for quick installation.

[0030] As mentioned above, during use, the rotor wears against the wear-resistant block 202, reducing wear on the disassembly end seat 201 and the bearing block 3. During use, if overload or environmental vibration occurs, the elastic pad 5 and the corrugated spring 7 are located inside the first threaded hole 203 to dampen the threaded pins and prevent them from falling off. When disassembly and replacement are required, multiple threaded pins are removed to expose the first disassembly hole 204 and the second disassembly hole 6. A vertical rod is inserted into the first disassembly hole 204 and the second disassembly hole 6, thereby squeezing the elastic retaining ring 205, causing the elastic retaining ring 205 to deform towards the wear-resistant block 202. Then, the disassembly end seat 201 is pulled out so that the wear-resistant block 202 and the elastic retaining ring 205 slide out of the bearing block 3, thus completing the disassembly work.

[0031] The technical scope of this utility model is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this utility model, and all such modifications and variations should fall within the protection scope of this utility model.

Claims

1. A suction end seat structure for a refrigeration screw compressor, characterized in that, The device includes an end seat body: a bearing block is provided at the center of the end seat body, a slot is provided on the inner side of the bearing block, a second disassembly hole is provided on the outer side of the bearing block, an installation mechanism is provided at the center of the bearing block, a corrugated spring is provided on the inner side of the installation mechanism, and an elastic pad is connected to the inner side of the corrugated spring.

2. The suction end seat structure of a refrigeration screw compressor according to claim 1, characterized in that: The bearing blocks are symmetrically distributed on both sides of the center of the end seat body. The bearing blocks are divided into male and female bearing blocks, and the bearing blocks are used to limit and fix the rotor.

3. The suction end seat structure of a refrigeration screw compressor according to claim 1, characterized in that: The installation mechanism includes a disassembly end seat, a wear-resistant block, a first threaded hole, a first disassembly hole, and an elastic retaining ring. The diameter of the disassembly end seat is the same as the diameter of the bearing block.

4. The suction end seat structure of a refrigeration screw compressor according to claim 3, characterized in that: The center of the disassembly end seat has a first threaded hole evenly distributed, and the first threaded hole and the first disassembly hole are arranged in an alternating structure. The length of the first disassembly hole is greater than the length of the first threaded hole.

5. The suction end seat structure of a refrigeration screw compressor according to claim 4, characterized in that: The first threaded hole and the first disassembly hole are also staggered on the outside of the bearing block, and the first disassembly hole penetrates the bearing block to the position of the slot.

6. The suction end seat structure of a refrigeration screw compressor according to claim 5, characterized in that: The elastic retaining ring and the wear-resistant block are installed as an integral part, and the wear-resistant block is located inside the disassembly end seat.

7. The suction end seat structure of a refrigeration screw compressor according to claim 3, characterized in that: The center of the slot coincides with the center of the bearing block, and the slot and the elastic retaining ring are interlocked. The diameter of the slot is slightly larger than the diameter of the elastic retaining ring.

8. The suction end seat structure of a refrigeration screw compressor according to claim 3, characterized in that: The elastic pad forms a spring buffer structure with the disassembly end seat via a corrugated spring. The elastic pad is located inside the storage groove, which is located on the inner side of the disassembly end seat. The elastic pad is tightly attached to the outer side of the bearing block.

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