Shaft sleeve convenient to machine

Abstract

The utility model discloses a shaft sleeve convenient to machine, which relates to the technical field of machining and comprises a first shaft sleeve. A second shaft sleeve is arranged on the inner side of the first shaft sleeve in an attached mode, a plurality of inserting rods are inserted into the first shaft sleeve in the circumferential direction, the inner side surface of each inserting rod extends into the second shaft sleeve, a clamping block is fixedly installed on the inner side surface of each inserting rod, and the outer side surface of each clamping block is attached to the inner wall of the second shaft sleeve. The outer side surface of each inserting rod extends out of the interior of the first shaft sleeve and is fixedly provided with an adjusting plate, and the inner side surface of each adjusting plate is attached to the outer side surface of the first shaft sleeve. By arranging the first shaft sleeve and the second shaft sleeve, the whole shaft sleeve is divided into two parts, the two parts are connected and fixed through the inserting rods, the clamping blocks and other structures, the first shaft sleeve and the second shaft sleeve are installed, the number of materials used by the whole shaft sleeve is reduced, the use cost is reduced, and the flexibility and maintainability of the shaft sleeve are improved; and machining is facilitated.

Description

Technical Field

[0001] This utility model relates to the field of machining technology, specifically to a bushing that is easy to machine. Background Technology

[0002] Machining refers to the process of changing the shape, size, or properties of a workpiece using mechanical equipment. It can be divided into cutting and pressure processing according to the difference in processing methods. Machining is an indispensable part of modern industry. It not only promotes the development of manufacturing industry but also brings convenience to people's lives. Through machining, workpieces of various shapes, sizes, and properties can be manufactured to meet people's needs in different fields.

[0003] The bushing used in machining is a cylindrical mechanical part that is fitted onto a rotating shaft. As a component of a sliding bearing, it is widely used in various mechanical equipment. The bushing of the fluid-contacting part of the mechanical seal is an important component of the mechanical seal. The bushing provides support and fixation for the dynamic or stationary ring of the mechanical seal, ensuring that the sealing end face can maintain a stable relative position.

[0004] The bushing of the fluid-wet part of a mechanical seal is one of the key components of the mechanical seal. Its design and material selection have a significant impact on the performance and lifespan of the mechanical seal. In the existing technology, the bushing of the fluid-wet part of the mechanical seal is an integral structure. However, this structure can easily limit the flexibility and maintainability of the bushing and affect machining. Therefore, it is necessary to propose a bushing that is easy to machine to solve these problems. Utility Model Content

[0005] The purpose of this utility model is to provide a bushing that is easy to machine, in order to solve the problem that the bushing of the fluid-contacting part of the mechanical seal proposed in the background art is an integral structure, but this structure easily limits the flexibility and maintainability of the bushing and affects the machining.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0007] A machined bushing includes a bushing 1; a bushing 2 is fitted inside the bushing 1; several insert rods are inserted circumferentially inside the bushing 1, the inner surface of each insert rod extends into the interior of the bushing 2, and a locking block is fixedly installed on the inner surface of each insert rod; the outer surface of each locking block is fitted against the inner wall of the bushing 2; an adjusting plate is fixedly installed on the outer surface of each insert rod extending out of the interior of the bushing 1, the inner surface of each adjusting plate is fitted against the outer surface of the bushing 1; a connecting plate is slidably installed inside the bushing 1 at the top of each insert rod; a limiting block is fixedly connected to the outer surface of each connecting plate, the outer surface of each limiting block extends into the interior of each adjusting plate; a spring is fixedly installed on the outer surface of the connecting plate at the top of each limiting block, the outer surface of each spring is fixedly connected to the inner wall of the bushing 1; a connecting post is fixedly installed on the outer surface of the connecting plate at the top of each spring, and the outer surface of each connecting post extends out of the inner wall of the bushing 1.

[0008] The above technical solution addresses the issue that the mechanical seal fluid-contacting bushing in the background art is an integral structure. However, this structure can restrict the flexibility and maintainability of the bushing, affecting machining. In this application, bushing one and bushing two are installed, with the bushing being disassembled into two parts. The diameter of the outer surface of bushing two is smaller than that of bushing one, thereby reducing the amount of material used in the overall bushing and lowering the cost. Furthermore, by inserting a rod into the interior of bushing one and bushing two, and by inserting a locking block into the interior of bushing two, the spring force can lock the limiting block into the interior of the adjusting plate, thus limiting the adjustment plate and connecting and fixing bushing one and bushing two. This improves the flexibility and maintainability of the bushing, facilitating machining.

[0009] A further improvement of this utility model is that: several clips are fixedly installed on the outer surface of the bushing two inside each connecting plate, and the outer surface of each clip is in contact with the inner wall of the bushing one.

[0010] By adopting the above technical solution, several locking strips are installed, and each locking strip is inserted into the interior of bushing one to connect and fix bushing two and bushing one. This reduces the possibility of bushing two rotating inside bushing one and makes it easier to align and insert the insertion rod into the interior of bushing one and bushing two, thereby improving the installation efficiency.

[0011] A further improvement of this utility model is that: the top of the bushing of each connecting plate is provided with an opening larger than the bottom surface of the connecting plate.

[0012] The above technical solution involves opening one to facilitate the alignment and insertion of the clip into bushing one, thereby accelerating the connection between bushing two and bushing one and further improving installation efficiency.

[0013] A further improvement of the present invention is that: each bushing surrounding the limiting block has an opening 2 larger than the outer surface of the limiting block.

[0014] The above technical solution, by opening two openings, facilitates the alignment and insertion of the limiting block into the adjusting plate, thereby accelerating the limiting and fixing of the adjusting plate and further improving the installation efficiency.

[0015] A further improvement of this utility model is that a paddle is fixedly installed on the outer surface of each adjusting plate at the bottom of each limiting block.

[0016] The above technical solution increases the contact area between the operator's hand and the adjustment plate by installing a paddle, thus facilitating the movement and rotation of the adjustment plate.

[0017] A further improvement of this utility model is that a push block is fixedly installed on the outer surface of each connecting column, and each push block is located on the top of each adjusting plate.

[0018] By adopting the above technical solution, the contact area between the operator's hand and the connecting column can be increased by installing the push block, so that the operator can manually press the connecting column and drive the limit block to move.

[0019] A further improvement of this utility model is that the material of bushing one is super duplex steel, and the material of bushing two is 316 stainless steel.

[0020] The above technical solution uses super duplex steel for bushing one and 316 stainless steel for bushing two. 316 stainless steel mainly consists of iron, chromium, nickel, and a certain amount of molybdenum, while super duplex steel contains higher levels of alloying elements such as chromium, nickel, and molybdenum. Some super duplex steels also contain nitrogen, thus exhibiting excellent corrosion resistance. Furthermore, the cost of super duplex steel is higher than that of 316 stainless steel. This material allocation can further reduce usage costs.

[0021] Due to the adoption of the above technical solution, the technological progress achieved by this utility model compared to the prior art is as follows:

[0022] 1. This utility model provides a bushing that is easy to machine. By disassembling the bushing into two parts, bushing one and bushing two, the amount of material used in the whole bushing is reduced as needed, thus reducing the cost of use. Furthermore, by using structures such as insert rods and clamps, bushing one and bushing two can be connected and fixed, thereby improving the flexibility and maintainability of the bushing and facilitating machining.

[0023] 2. This utility model provides a bushing that is easy to machine. By installing several retaining strips and opening one, the retaining strips can be quickly aligned and inserted into bushing one. By inserting each retaining strip into the interior of bushing one, the contact area between bushing two and bushing one is increased, reducing the possibility of bushing two rotating inside bushing one. It also makes it easier to align and insert the insert rod into the interior of bushing one and bushing two, thereby improving the installation efficiency.

[0024] 3. This utility model provides a bushing that is easy to machine. By using super duplex steel and 316 stainless steel as the materials for bushing one and bushing two respectively, the main components of 316 stainless steel include iron, chromium, nickel and a certain amount of molybdenum, while super duplex steel contains a higher content of alloying elements such as chromium, nickel and molybdenum. Some super duplex steels also contain nitrogen. Therefore, super duplex steel has excellent corrosion resistance. This makes the cost of super duplex steel higher than that of 316 stainless steel. This material allocation can effectively utilize the bushing and is less likely to affect its use, further reducing the cost of use. Attached Figure Description

[0025] The present invention will be further described below with reference to the accompanying drawings.

[0026] Figure 1 This is a perspective view of the present utility model;

[0027] Figure 2 This is a schematic diagram of the overall cross-sectional structure of this utility model;

[0028] Figure 3 This is a partial cross-sectional structural diagram of the bushing of this utility model;

[0029] Figure 4 For the present utility model Figure 2 Enlarged structural diagram at point A in the middle;

[0030] Figure 5 This is a partial cross-sectional structural diagram of the adjusting plate of this utility model;

[0031] Figure 6 This is a partial cross-sectional structural diagram of the bushing of this utility model.

[0032] In the diagram: 1. Bushing 1; 2. Bushing 2; 3. Adjusting plate; 4. Insert rod; 5. Clamping block; 6. Connecting plate; 7. Limiting block; 8. Spring; 9. Connecting column; 10. Push block; 11. Clamping strip; 12. Paddle. Detailed Implementation

[0033] The present invention will be further described in detail below with reference to embodiments:

[0034] Example 1

[0035] like Figure 1 , Figure 2 and Figure 4 As shown, this utility model provides a bushing that is easy to machine, including a bushing 1; a bushing 2 is fitted inside the bushing 1; several insert rods 4 are inserted into the bushing 1 in a circumferential direction, the inner surface of each insert rod 4 extends into the bushing 2, and a locking block 5 is fixedly installed on the inner surface of each insert rod 4; the outer surface of each locking block 5 is fitted against the inner wall of the bushing 2; the outer surface of each insert rod 4 extends out of the bushing 1 and is fixedly installed with an adjusting plate 3; the inner surface of each adjusting plate 3 is fitted against the inner wall of the bushing 2. The outer surface of sleeve 1 is fitted together. A connecting plate 6 is slidably installed inside the bushing 1 at the top of each insert rod 4. A limit block 7 is fixedly connected to the outer surface of each connecting plate 6. The outer surface of each limit block 7 extends into the interior of each adjusting plate 3. A spring 8 is fixedly installed on the outer side of the connecting plate 6 at the top of each limit block 7. The outer surface of each spring 8 is fixedly connected to the inner wall of the bushing 1. A connecting post 9 is fixedly installed on the outer side of the connecting plate 6 at the top of each spring 8. The outer surface of each connecting post 9 extends out of the inner wall of the bushing 1.

[0036] In this embodiment, the bushing of the fluid-contacting part of the mechanical seal proposed in the background art is an integral structure. However, this structure easily limits the flexibility and maintainability of the bushing and affects machining. In this application, by installing bushing 1 and bushing 2, the bushing is decomposed into two parts. The diameter of the outer surface of bushing 2 is smaller than that of bushing 1, thereby reducing the amount of material used in the whole bushing as needed and reducing the cost of use. Furthermore, by inserting the insert rod 4 into the interior of bushing 1 and bushing 2, by inserting the locking block 5 into the interior of bushing 2, and by using the elastic force of the spring 8 to lock the limiting block 7 into the interior of the adjusting plate 3, the adjusting plate 3 is limited, thereby achieving the connection and fixation of bushing 1 and bushing 2, thereby improving the flexibility and maintainability of the bushing and facilitating machining.

[0037] Example 2

[0038] like Figure 1 , Figure 3 and Figure 6As shown, based on Embodiment 1, this utility model provides a technical solution: preferably, a number of clips 11 are fixedly installed on the outer surface of the bushing 2 inside each connecting plate 6, the outer surface of each clip 11 is in contact with the inner wall of the bushing 1, and the top of the bushing 2 outside each connecting plate 6 is provided with an opening larger than the bottom surface of the connecting plate 6.

[0039] In this embodiment, by installing several locking strips 11, each locking strip 11 is inserted into the interior of bushing 1 to connect and fix bushing 2 and bushing 1, reducing the possibility of bushing 2 rotating inside bushing 1 and facilitating the subsequent alignment and insertion of the insert rod 4 into bushing 1 and bushing 2, thereby improving installation efficiency; by opening one to facilitate the alignment and insertion of the locking strip 11 into bushing 1, the connection between bushing 2 and bushing 1 is accelerated, further improving installation efficiency.

[0040] Example 3

[0041] like Figure 2 , Figure 4 and Figure 5 As shown, based on Embodiment 2, this utility model provides a technical solution: preferably, each bushing 1 around the periphery of the limiting block 7 has an opening 2 larger than the size of the outer surface of the limiting block 7, each adjusting plate 3 at the bottom of each limiting block 7 has a paddle 12 fixedly installed on its outer surface, and each connecting column 9 has a push block 10 fixedly installed on its outer surface, with each push block 10 located at the top of each adjusting plate 3.

[0042] In this embodiment, by opening the second opening, the limiting block 7 can be aligned and inserted into the adjusting plate 3, thereby speeding up the limiting and fixing of the adjusting plate 3 and further improving the installation efficiency; by installing the paddle 12, the contact area between the operator's hand and the adjusting plate 3 can be increased, so as to facilitate the movement and rotation of the adjusting plate 3; by installing the push block 10, the contact area between the operator's hand and the connecting column 9 can be increased, so that the operator can manually press the connecting column 9 and drive the limiting block 7 to move.

[0043] Example 4

[0044] like Figure 1 , Figure 3 and Figure 6 As shown, based on Embodiment 3, this utility model provides a technical solution: preferably, the material of bushing 1 is super duplex steel, and the material of bushing 2 is 316 stainless steel.

[0045] In this embodiment, the bushing 1 is made of super duplex steel, and the bushing 2 is made of 316 stainless steel. The main components of 316 stainless steel include iron, chromium, nickel and a certain amount of molybdenum, while super duplex steel contains a higher content of alloying elements such as chromium, nickel and molybdenum. Some super duplex steels also contain nitrogen, thus having excellent corrosion resistance. Moreover, the cost of super duplex steel is higher than that of 316 stainless steel. This material allocation can further reduce the cost of use.

[0046] The working principle of this easily machined bushing is explained in detail below.

[0047] like Figures 1-6 As shown, the operator first inserts the retaining strip 11 into bushing 1, and simultaneously inserts bushing 2 into bushing 1, connecting bushing 2 to bushing 1. Then, the retaining block 5 is rotated 90 degrees to the bottom while pressing the push block 10, causing the connecting plate 6 and the limiting block 7 to move inward, inserting the insert rod 4 and retaining block 5 into bushing 1 and bushing 2. After retaining block 5 is fully inserted into bushing 2, it is rotated 90 degrees in the opposite direction. At this point, the operator can release the push block 10, and then the spring 8 can drive the connecting plate 6 to move outward, while simultaneously driving the limiting block 7 into the adjusting plate 3, limiting the insertion rod 4 and retaining block 5, thereby installing and fixing bushing 1 and bushing 2 for subsequent use and machining.

[0048] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A shaft sleeve for facilitating machining, comprising a shaft sleeve (1); characterized in that: The inner side of the shaft sleeve one (1) is provided with the shaft sleeve two (2), the inside of the shaft sleeve one (1) is inserted with a plurality of insertion rods (4) in the circumferential direction, the inner side surface of each insertion rod (4) extends to the inside of the shaft sleeve two (2), and the inner side surface of each insertion rod (4) is fixedly installed with a clamping block (5), the outer side surface of each clamping block (5) is matched with the inner wall of the shaft sleeve two (2), the outer side surface of each insertion rod (4) extends out of the inside of the shaft sleeve one (1) and is fixedly installed with an adjusting plate (3), the inner side surface of each adjusting plate (3) is matched with the outer side surface of the shaft sleeve one (1), the inside of the shaft sleeve one (1) at the top of each insertion rod (4) is slidingly installed with a connecting plate (6), the outer side surface of each connecting plate (6) is fixedly connected with a limiting block (7), the outer side surface of each limiting block (7) extends to the inside of each adjusting plate (3), the outer side of the connecting plate (6) at the top of each limiting block (7) is fixedly installed with a spring (8), the outer side surface of each spring (8) is fixedly connected with the inner wall of the shaft sleeve one (1), the outer side of the connecting plate (6) at the top of each spring (8) is fixedly installed with a connecting column (9), and the outer side surface of each connecting column (9) extends out of the inner wall of the shaft sleeve one (1).

2. A shaft sleeve for ease of machining according to claim 1, characterized in that: The outer surface of the shaft sleeve two (2) on the inner side of each connecting plate (6) is fixedly installed with a plurality of clamping strips (11), and the outer surface of each clamping strip (11) is matched with the inner wall of the shaft sleeve one (1).

3. A shaft sleeve for ease of machining according to claim 2, characterized in that: The top of the shaft sleeve two (2) on the periphery of each connecting plate (6) is provided with an opening one larger than the size of the bottom surface of the connecting plate (6).

4. A shaft sleeve for ease of machining according to claim 1, characterized in that: The inside of the shaft sleeve one (1) on the periphery of each limiting block (7) is provided with an opening two larger than the size of the outer side surface of the limiting block (7).

5. A shaft sleeve for facilitating machining according to claim 4, characterized in that: The outer side surface of each adjusting plate (3) at the bottom of each limiting block (7) is fixedly installed with a pushing piece (12).

6. A shaft sleeve for ease of machining according to claim 5, characterized in that: The outer side surface of each connecting column (9) is fixedly installed with a pushing block (10), and each pushing block (10) is located at the top of each adjusting plate (3).

7. A shaft sleeve for facilitating machining according to claim 1, characterized in that: The material of the shaft sleeve one (1) is super duplex steel material, and the material of the shaft sleeve two (2) is 316 stainless steel material.

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