Special tool for mounting machine seal and bearing bush of waste heat turbo expander

Abstract

The utility model discloses a special tool for mounting a mechanical seal and a bearing bush of a waste heat turbo expander, which comprises a [-shaped workbench, a sleeve is mounted on the lower surface of the [-shaped workbench in a penetrating manner, a working barrel is mounted in the sleeve, teeth are arranged on the side surface of the working barrel, the teeth are meshed with a gear, and the gear is meshed with the working barrel. The gear is connected with a forward and reverse motor through a rotating shaft, a fixing base is arranged on the side surface of the [-shaped workbench, and an electric cylinder is installed on the fixing base. A bearing bush is placed in the working barrel, a mechanical seal is placed on the [-shaped working table, then the electric cylinder and the forward and backward motor are started front and back, the electric cylinder pushes the limiting plate, the limiting plate rotates around the hinge piece till the limiting plate is tightly attached to the mechanical seal, and therefore the mechanical seal is limited; under the action of the gear and the teeth, the working barrel is driven to move upwards, then the bearing bush is pushed, the bearing bush is pressed into the mechanical seal, and the bearing bush of the mechanical seal is not prone to being damaged.

Description

Technical Field

[0001] The utility model relates to the technical field of installation tools, and more specifically, to a special tool for installing the mechanical seal and bearing bush of a waste heat turbine expander. Background Technique

[0002] The turbine expander is a key component necessary for obtaining cold energy in air separation equipment, natural gas (petroleum gas) liquefaction separation equipment, cryogenic crushing equipment, etc., and is a device to ensure the stability of the entire set of equipment. Its mechanical seal and bearing bush are the main components of the turbine expander.

[0003] Due to the extremely small clearance between the mechanical seal and the bearing bush, and the lack of a special installation tool for the mechanical seal bearing bush, a hammer or a copper bar is needed to knock the bearing bush into the installation hole of the mechanical seal, resulting in inevitable rough construction during the installation process of the mechanical seal bearing bush, which may damage the mechanical seal bearing bush.

[0004] In response to the problems in the related art, no effective solution has been proposed yet. Content of the Utility Model

[0005] (I) Technical Problems to be Solved

[0006] In view of the deficiencies of the prior art, the utility model provides a special tool for installing the mechanical seal and bearing bush of a waste heat turbine expander to solve the problem of inevitable rough construction during the installation process of the mechanical seal bearing bush and possible damage to the mechanical seal bearing bush mentioned in the above background technique.

[0007] (II) Technical Solutions

[0008] To solve the problem of inevitable rough construction during the installation process of the mechanical seal bearing bush and possible damage to the mechanical seal bearing bush mentioned in the above background technique, the specific technical solution adopted by the utility model is as follows:

[0009] A special tool for installing the mechanical seal and bearing bush of a waste heat turbine expander includes a U-shaped workbench. A sleeve is installed through the lower surface of the U-shaped workbench. A working cylinder is installed inside the sleeve. Tooth teeth are arranged on the side surface of the working cylinder, and the tooth teeth are meshed with a gear. The gear is connected to a positive and negative motor through a rotating shaft. A fixed seat is arranged on the side surface of the U-shaped workbench. An electric cylinder is installed at the fixed seat. A driving ring is installed at the end of the electric cylinder. The driving ring is connected to a limiting plate. The limiting plate is installed on the upper surface of the U-shaped workbench through a hinge.

[0010] Further, a bearing bottom rod is arranged inside the working cylinder. A lead screw is connected to the lower surface of the bearing bottom rod, and a handle is installed at the end of the lead screw.

[0011] Further, a rubber pad is arranged on the lower surface of the limiting plate.

[0012] Further, mounting holes are formed in the upper surface of the U-shaped workbench, and a limiting block is installed at the mounting holes through positioning bolts. The side surface of the limiting block is of a bevel structure.

[0013] Further, an arc sticker is arranged between the two mounting holes.

[0014] Further, feet are arranged on the lower surface of the U-shaped workbench.

[0015] Further, a control panel is arranged on the front surface of the U-shaped workbench.

[0016] (III) Beneficial effects

[0017] Compared with the prior art, the present utility model provides a special tool for installing a mechanical seal and a bearing bush of a waste heat turbine expander, and has the following beneficial effects:

[0018] (1) By adopting a U-shaped workbench, a sleeve, a working cylinder, a gear, teeth, a forward and reverse motor, a fixed seat, an electric cylinder and a limiting plate, the present utility model solves the problem that rough construction is inevitable during the installation of the mechanical seal and the bearing bush, which may damage the mechanical seal and the bearing bush. During use, the bearing bush is placed in the working cylinder, and the mechanical seal is placed on the U-shaped workbench. Then, the electric cylinder and the forward and reverse motor are started. The electric cylinder pushes the limiting plate, so that the limiting plate rotates around the hinge until the limiting plate is in close contact with the mechanical seal, thereby limiting the mechanical seal. The forward and reverse motor drives the gear to rotate. Under the action of the gear and the teeth, the working cylinder is driven to move upward, thereby pushing the bearing bush and pressing the bearing bush into the mechanical seal, and it is not easy to damage the mechanical seal and the bearing bush.

[0019] (2) By adopting a working cylinder, a bearing bottom rod, a lead screw and a handle, the present utility model drives the lead screw by rotating the handle, and then drives the bearing bottom rod to adjust the position of the bearing bottom rod to adapt to bearing bush mechanisms of different lengths. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the following described drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0021] Figure 1 is a schematic structural diagram of a special tool for installing a mechanical seal and a bearing bush of a waste heat turbine expander proposed by the present utility model;

[0022] Figure 2It is a schematic internal structure diagram of a sleeve of a special tool for installing the mechanical seal and bearing bush of a waste heat turbine expander proposed by the present utility model;

[0023] Figure 3 It is a schematic top view structure diagram of a U-shaped workbench of a special tool for installing the mechanical seal and bearing bush of a waste heat turbine expander proposed by the present utility model;

[0024] Figure 4 It is a schematic overall structure diagram of a limit plate of a special tool for installing the mechanical seal and bearing bush of a waste heat turbine expander proposed by the present utility model.

[0025] In the figure:

[0026] 1. U-shaped workbench; 2. Sleeve; 3. Working cylinder; 4. Gear; 5. Teeth; 6. Reversible motor; 7. Bearing bottom rod; 8. Lead screw; 9. Handle; 10. Fixed seat; 11. Electric cylinder; 12. Limit plate; 13. Rubber pad; 14. Limit block; 15. Installation hole; 16. Arc sticker; 17. Support leg; 18. Control panel. Specific embodiments

[0027] To further illustrate the embodiments, the present utility model provides accompanying drawings. These drawings are a part of the disclosure of the present utility model, mainly used to illustrate the embodiments, and can be used in conjunction with the relevant descriptions in the specification to explain the operating principle of the embodiments. With reference to these contents, those of ordinary skill in the art should be able to understand other possible implementation manners and the advantages of the present utility model. The components in the figures are not drawn to scale, and similar component symbols are usually used to represent similar components.

[0028] According to an embodiment of the present utility model, there is provided a special tool for installing the mechanical seal and bearing bush of a waste heat turbine expander.

[0029] Now, the present utility model will be further described in conjunction with the accompanying drawings and specific embodiments. As Figure 1-4 shown, a special tool for installing the mechanical seal and bearing bush of a waste heat turbine expander according to an embodiment of the present utility model includes a U-shaped workbench 1. A sleeve 2 is installed through the lower surface of the U-shaped workbench 1. A working cylinder 3 is installed inside the sleeve 2. Teeth 5 are provided on the side surface of the working cylinder 3, and the teeth 5 are meshed with a gear 4. The gear 4 is connected to a reversible motor 6 through a rotating shaft. A fixed seat 10 is provided on the side surface of the U-shaped workbench 1. An electric cylinder 11 is installed at the fixed seat 10. A driving ring is installed at the end of the electric cylinder 11. The driving ring is connected to a limit plate 12. The limit plate 12 is installed on the upper surface of the U-shaped workbench 1 through a hinge.

[0030] In one embodiment, during use, the bearing bush is placed in the working cylinder 3, and the mechanical seal is placed on the C-shaped workbench 1. Then, the electric cylinder 11 and the forward and reverse motor 6 are started successively. The electric cylinder 11 pushes the limiting plate 12, causing the limiting plate 12 to rotate around the hinge until the limiting plate 12 is in close contact with the mechanical seal, thereby limiting the mechanical seal. The forward and reverse motor 6 drives the gear 4 to rotate. Under the action of the gear 4 and the teeth 5, the working cylinder 3 is driven to move upward, and then the bearing bush is pushed, and the bearing bush is pressed into the mechanical seal, which is not likely to damage the mechanical seal bearing bush.

[0031] Specifically, a bearing bottom rod 7 is arranged inside the working cylinder 3. A lead screw 8 is connected to the lower surface of the bearing bottom rod 7, and a handle 9 is installed at the end of the lead screw 8.

[0032] In one embodiment, by rotating the handle 9, the lead screw 8 is driven, and then the bearing bottom rod 7 is driven to adjust the position of the bearing bottom rod 7 to adapt to bearing bush mechanisms of different lengths.

[0033] Specifically, a rubber pad 13 is arranged on the lower surface of the limiting plate 12.

[0034] In one embodiment, it plays a buffering role and will not damage the mechanical seal.

[0035] Specifically, mounting holes 15 are formed on the upper surface of the C-shaped workbench 1, and a limiting block 14 is installed at the mounting holes 15 through positioning bolts. The side surface of the limiting block 14 is of a bevel structure.

[0036] In one embodiment, the limiting block 14 adopts a detachable structure and can adapt to mechanical seals of different specifications.

[0037] Specifically, an arc-shaped sticker 16 is arranged between the two mounting holes 15.

[0038] In one embodiment, by providing the arc-shaped sticker 16, it is convenient to install the limiting block 14.

[0039] Specifically, feet 17 are arranged on the lower surface of the C-shaped workbench 1.

[0040] In one embodiment, it plays a supporting role for the C-shaped workbench 1.

[0041] Specifically, a control panel 18 is arranged on the front surface of the C-shaped workbench 1.

[0042] In one embodiment, by providing the control panel 18, it is used to install tools for control.

[0043] Working principle: During use, place the bearing bush in the working cylinder 3 and place the mechanical seal on the U-shaped workbench 1. Then, start the electric cylinder 11 and the forward and reverse motor 6 successively. The electric cylinder 11 pushes the limit plate 12, causing the limit plate 12 to rotate around the hinge until the limit plate 12 is in close contact with the mechanical seal, thereby limiting the mechanical seal. The forward and reverse motor 6 drives the gear 4 to rotate. Under the action of the gear 4 and the teeth 5, the working cylinder 3 is driven to move upward, and then the bearing bush is pushed, and the bearing bush is pressed into the mechanical seal, which is not easy to damage the mechanical seal bearing bush. By rotating the handle 9, the lead screw 8 is driven, and then the bearing bottom rod 7 is driven to adjust the position of the bearing bottom rod 7 to adapt to bearing bush mechanisms of different lengths.

[0044] In the present utility model, unless otherwise clearly specified and defined, terms such as "installation", "setting", "connection", "fixation", "swivel connection", etc. shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components. Unless otherwise clearly defined, for those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0045] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A special tool for installing the mechanical seal and bearing bush of a waste heat turbine expander, including a U-shaped workbench (1), characterized in that, A sleeve (2) is installed through the lower surface of the U-shaped workbench (1). A working cylinder (3) is installed inside the sleeve (2). Tooth teeth (5) are arranged on the side surface of the working cylinder (3), and the tooth teeth (5) are meshed and connected with a gear (4). The gear (4) is connected with a positive and negative motor (6) through a rotating shaft. A fixed seat (10) is arranged on the side surface of the U-shaped workbench (1). An electric cylinder (11) is installed at the fixed seat (10). A driving ring is installed at the end of the electric cylinder (11). The driving ring is connected with a limiting plate (12), and the limiting plate (12) is installed on the upper surface of the U-shaped workbench (1) through a hinge.

2. A special tool for installing a seal and a bearing of a waste heat turbine expander according to claim 1, characterized in that: A bearing bottom rod (7) is arranged inside the working cylinder (3). A lead screw (8) is connected to the lower surface of the bearing bottom rod (7), and a handle (9) is installed at the end of the lead screw (8).

3. A special tool for installing a seal and a bearing of a waste heat turbine expander according to claim 1, characterized in that: A rubber pad (13) is arranged on the lower surface of the limiting plate (12).

4. A special tool for installing a seal and a bearing of a waste heat turbine expander according to claim 1, characterized in that: Installation holes (15) are formed in the upper surface of the U-shaped workbench (1), and a limiting block (14) is installed at the installation holes (15) through positioning bolts. The side surface of the limiting block (14) is of a bevel structure.

5. A special tool for installing seal and bearing of waste heat turbine expander according to claim 4, characterized in that: An arc sticker (16) is arranged between the two installation holes (15).

6. A special tool for installing a seal and a bearing of a waste heat turbine expander according to claim 1, characterized in that: Support feet (17) are arranged on the lower surface of the U-shaped workbench (1).

7. A special tool for installing a seal and a bearing of a waste heat turbine expander according to claim 1, characterized in that: A control panel (18) is arranged on the front surface of the U-shaped workbench (1).

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