Thrust disc mounting and locking structure

Abstract

The utility model belongs to the technical field of compressors, and particularly discloses a thrust disc mounting and locking structure which comprises a first shaft sleeve, a second shaft sleeve, a displacement measuring disc, a lock washer and a threaded locking piece which are sequentially arranged. Five steps are sequentially arranged on one side of the main shaft, the first shaft sleeve is in interference fit with the first step of the main shaft, the thrust disc is in key connection with the second step of the main shaft, the second shaft sleeve is in interference fit with the third step of the main shaft, the displacement measuring disc is in interference fit with the fourth step of the main shaft, and the thrust disc is in key connection with the third step of the main shaft. The lock washer is in key connection with the fifth step of the main shaft, the fifth step of the main shaft is provided with an external thread, and the thread locking piece is in threaded connection with the external thread; the adjacent sides of the first shaft sleeve, the thrust disc, the second shaft sleeve, the displacement measuring disc, the lock washer and the threaded locking piece abut against each other. And the device can be disassembled without a professional tool, the speed is higher, the structure is simpler, and the assembly requirement is lower.

Description

Technical Field

[0001] This utility model belongs to the field of compressor technology, and in particular relates to a thrust plate mounting and locking structure. Background Technology

[0002] As is well known, a centrifugal compressor is a type of rotating machinery that uses a drive motor to rotate a rotor assembly to perform work on gas. The gas itself exerts an axial thrust on the rotor assembly, and the thrust plate is used to withstand this thrust, ensuring the safe operation of the unit. In some cases, the thrust plate needs to be frequently disassembled and reassembled. Traditionally, thrust plates require hydraulic equipment for hydraulic assembly. Utility Model Content

[0003] The purpose of this utility model is to provide a thrust plate mounting and locking structure that ensures safety and reliability while also enabling quick disassembly.

[0004] To achieve the above objectives, the technical solution of this utility model is as follows: a thrust disc mounting and locking structure, comprising a first bushing, a second bushing, a displacement measuring disc, a stop washer, and a threaded locking component arranged sequentially; five steps are sequentially provided on one side of the main shaft, the first bushing is interference-fitted with the first step of the main shaft, the thrust disc and the second step of the main shaft are connected by a key, the second bushing is interference-fitted with the third step of the main shaft, the displacement measuring disc is interference-fitted with the fourth step of the main shaft, the stop washer and the fifth step of the main shaft are connected by a key, the fifth step of the main shaft is provided with an external thread, and the threaded locking component is threadedly connected to the external thread; the adjacent sides of the first bushing, the thrust disc, the second bushing, the displacement measuring disc, the stop washer, and the threaded locking component abut against each other.

[0005] Furthermore, the threaded locking component is a nut.

[0006] Furthermore, the direction of the external thread is opposite to the direction of the spindle.

[0007] The working principle and beneficial effects of this technical solution are as follows: When the unit is running, the thrust disc bears the axial force exerted by the gas on the rotor. Due to the constant axial friction generated by the nut and the retaining washer, relative movement of the thrust disc is prevented, ensuring that the assembly clearance of the thrust bearing remains unchanged. The first bushing uses a transition fit with the main shaft, the thrust disc is connected to the main shaft with a key, the second bushing uses a transition fit with the main shaft, the displacement measuring disc uses a transition fit with the main shaft, and the retaining washer is connected to the main shaft with a key, ensuring quick disassembly and assembly. Traditional hydraulic assembly requires specialized hydraulic equipment to complete this process. Attached Figure Description

[0008] Figure 1 This is a schematic diagram of a thrust disc mounting and locking structure according to the present invention. Detailed Implementation

[0009] The following detailed description illustrates the specific implementation method:

[0010] The reference numerals in the accompanying drawings include: 1. First bushing; 2. Thrust disc; 3. Main shaft; 4. Second bushing; 5. Displacement measuring disc; 6. Stop washer; 7. Threaded locking element.

[0011] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0012] The basic implementation examples are as follows: Figure 1 The diagram shows a thrust plate mounting and locking structure, comprising a first bushing 1, a second bushing 4, a displacement measuring disc 5, a stop washer 6, and a threaded locking element 7 arranged sequentially. Five steps are sequentially provided on one side of the main shaft 3. The first bushing 1 is interference-fitted with the first step of the main shaft 3. The thrust plate 2 and the second step of the main shaft 3 are connected by a key (facilitating disassembly while ensuring the thrust plate 2 does not move during rotor rotation). The second bushing 4 is interference-fitted with the third step of the main shaft 3. The displacement measuring disc 5 is interference-fitted with the fourth step of the main shaft 3. The stop washer 6 is connected by a key to the fifth step of the main shaft 3. The fifth step of the main shaft 3 has an external thread, the direction of which is opposite to the direction of rotation of the main shaft 3. The threaded locking element 7 is threadedly connected to the external thread and is a nut. The adjacent sides of the first bushing 1, thrust plate 2, second bushing 4, displacement measuring disc 5, stop washer 6, and threaded locking element 7 abut against each other. The thrust plate 2 can be positioned at the bearing center by adjusting the length of the first bushing 1. Nuts and locking washers 6 are used to ensure that the first bushing 1, the thrust plate 2, the second bushing 4, and the displacement measuring plate 5 will not loosen when the thrust plate 2 is under force, and the displacement measuring plate 5 and the probe will not move relative to each other.

[0013] The specific implementation process is as follows:

[0014] When the unit is running, the thrust disc 2 bears the axial force exerted by the gas on the rotor. The axial friction generated by the nut and retaining washer 6 is constant, preventing relative movement of the thrust disc 2 and ensuring a constant assembly clearance of the thrust bearing. The first bushing 1 uses a transition fit with the main shaft 3, the thrust disc 2 is connected to the main shaft 3 by a key, the second bushing 4 uses a transition fit with the main shaft 3, the displacement measuring disc 5 uses a transition fit with the main shaft 3, and the retaining washer 6 is connected to the main shaft 3 by a key, ensuring quick disassembly and assembly. Traditional hydraulic assembly requires specialized hydraulic equipment to complete this process.

[0015] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0016] The above descriptions are merely embodiments of this utility model. Commonly known structures and characteristics are not described in detail here. Those skilled in the art are aware of all common technical knowledge in the field prior to the application date or priority date, are knowledgeable of all existing technologies in that field, and possess the ability to apply conventional experimental methods prior to that date. Therefore, those skilled in the art can, based on the guidance provided in this application, improve and implement this solution in conjunction with their own capabilities. Typical known structures or methods should not be obstacles for those skilled in the art to implement this application. It should be noted that those skilled in the art can make several modifications and improvements without departing from the structure of this utility model. These modifications and improvements should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A thrust disc mounting and locking structure, characterized in that: The assembly includes a first bushing (1), a second bushing (4), a displacement measuring disc (5), a stop washer (6), and a threaded locking element (7), arranged sequentially. Five steps are sequentially provided on one side of the main shaft (3). The first bushing (1) is interference-fitted with the first step of the main shaft (3), the thrust disc (2) and the second step of the main shaft (3) are connected by a key, the second bushing (4) and the third step of the main shaft (3) are interference-fitted, the displacement measuring disc (5) and the fourth step of the main shaft (3) are interference-fitted, the stop washer (6) and the fifth step of the main shaft (3) are connected by a key, and an external thread is provided on the fifth step of the main shaft (3). The threaded locking element (7) is threadedly connected to the external thread. The adjacent sides of the first bushing (1), thrust disc (2), second bushing (4), displacement measuring disc (5), stop washer (6), and threaded locking element (7) abut against each other. The direction of rotation of the external thread is opposite to that of the main shaft (3).

2. The thrust disc mounting and locking structure according to claim 1, characterized in that: The threaded locking component (7) is a nut.

Images