CN217890856U

CN217890856U - Molecular pump bearing seat dismounting device

Info

Publication number: CN217890856U
Application number: CN202221990117.5U
Authority: CN
Inventors: 龚鹰
Original assignee: Shanghai Lianlong Electronic Technology Co ltd
Current assignee: Shanghai Lianlong Electronic Technology Co ltd
Priority date: 2022-07-29
Filing date: 2022-07-29
Publication date: 2022-11-25
Anticipated expiration: 2032-07-29

Abstract

The utility model discloses a molecular pump bearing frame dismounting device relates to molecular pump maintenance field, including supporting seat and plug-in components, install the screw rod on the supporting seat, the top of plug-in components is provided with the connecting rod, the connector has been seted up on the top of connecting rod, the connecting rod passes through connector and screw rod spiro union, the air cavity has been seted up in the plug-in components, slidable mounting has the depression bar in the connecting rod, the both ends of depression bar insert connector and air intracavity respectively, the holding tank has been seted up to the bottom of plug-in components, slidable mounting has the inserted sheet in the holding tank, adopts the mode that can dismantle plug-in components, can select the plug-in components of adaptation size according to the bearing frame model, conveniently maintains the use to the molecular pump of different models, during the dismantlement, inserts from bearing frame inside to have a plurality of inserted sheet cards to go into the gap between bearing frame and the molecular pump, pass through the screw rod rotation mode in follow-up, can be stable extract the bearing frame from the below.

Description

Molecular pump bearing block dismounting device

Technical Field

The utility model relates to a molecular pump maintenance technical field specifically is a molecular pump bearing frame dismounting device.

Background

The molecular pump is a vacuum pump which utilizes a rotor rotating at a high speed to transmit momentum to gas molecules so as to enable the gas molecules to obtain a directional speed, and then the gas molecules are compressed and driven to an exhaust port and then are pumped away by a front stage.

The bearing frame on the molecular pump adopts interference fit's mode to install, and the installation is firm and inseparable, is difficult to take off, in the installation, when the dislocation condition takes place, the common mode that uses the jackscrew takes off it, but the jackscrew not only can lead to bearing frame edge damage, also can lead to the structural damage that the molecular pump is used for the installation bearing frame to it is difficult to restore, and follow-up can influence the use of molecular pump, for this reason, provides a molecular pump bearing frame dismounting device.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a molecular pump bearing frame dismounting device to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a molecular pump bearing frame dismounting device, includes supporting seat and plug-in components, install the screw rod on the supporting seat, the top of plug-in components is provided with the connecting rod, the connector has been seted up on the top of connecting rod, the connecting rod passes through connector and screw rod spiro union, seted up the air cavity in the plug-in components, slidable mounting has the depression bar in the connecting rod, the both ends of depression bar insert connector and air cavity respectively, the holding tank has been seted up to the bottom of plug-in components, slidable mounting has the inserted sheet in the holding tank, guide slot and air cavity intercommunication have been seted up to the top of holding tank, install the guide piece on the inserted sheet and insert in the guide slot, adopt the mode of dismantling plug-in components, can select the plug-in components of adapted size according to the bearing frame model, conveniently maintain the use to the molecular pump of different models, when dismantling, insert from the inside of bearing frame to there are a plurality of inserted sheet cards to go into the gap between bearing frame and the molecular pump, in follow-up through the screw rod mode of rotating, can be stable follow-up from the bearing frame pull out from the below.

Preferably, the guide slot is T style of calligraphy structure, the first half and the air cavity intercommunication of guide slot, and the curved surface of no matter the plug-in components are worn to the guide slot, avoid lower half and air cavity intercommunication, lead to gas leakage, and the condition that the inserted sheet drops appears in no matter the curved surface is worn to the guide slot outside.

Preferably, the guide member is in a T-shaped structure, and the upper half part of the guide member extends inwards to be inserted into the air cavity, so that the air tightness of the connection between the guide member and the plug-in unit is ensured.

Preferably, a gap is reserved between the end part of the guide member and the end part of the guide groove, and the length of the gap is smaller than the extension length of the guide member, so that gas inside the gas cavity is prevented from leaking from the lower half part of the guide groove.

Preferably, the bottom end of the air cavity is provided with a piston, the piston and the connecting port are both in airtight connection with the air cavity, and when the piston is extruded, air in the air cavity rises to push the guide pieces outwards so as to push the inserting pieces outwards.

Preferably, the top of supporting seat is cross structure, and the tip of cross structure is provided with downwardly extending's spike, and every spike is directly pegged graft and is had a presser foot, facilitates the installation supporting seat.

Preferably, an arc groove is formed in the supporting foot, and an inserting rod is arranged on the pressing foot and inserted into the arc groove to feed the supporting foot which is selected to be matched with the supporting foot in a reversed mode so as to fix the supporting seat.

Compared with the prior art, the beneficial effects of the utility model are that: the mode that adopts the plug-in components of dismantling can select the plug-in components of adaptation size according to the bearing frame model, conveniently maintains the molecular pump of different models and uses, during the dismantlement, inserts from the bearing frame is inside to in having a plurality of inserted sheets card to go into the gap between bearing frame and the molecular pump, in follow-up through the screw rod rotation mode, can be stable follow the below and extract the bearing frame.

Drawings

FIG. 1 is a schematic view of the front appearance structure of the present invention;

FIG. 2 is a schematic view of the bottom outline structure of the present invention;

FIG. 3 is a schematic view of the structure of the insert of the present invention;

fig. 4 is a sectional view of the insert structure of the present invention.

In the figure: 1. a supporting seat; 2. a presser foot; 3. a brace; 4. a plug-in; 5. a connecting rod; 6. a screw; 7. turning a handle; 8. an anchor port; 9. an arc groove; 10. a piston; 11. inserting sheets; 12. a containing groove; 13. a guide groove; 14. a guide; 15. a connection port; 16. a pressure lever 17 and an air cavity.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

Referring to fig. 1 to 4, the present invention provides a technical solution for a molecular pump bearing seat dismounting device: a molecular pump bearing block dismounting device is shown in figures 1 to 4 and comprises a supporting seat 1 and an insert 4, wherein the top of the supporting seat 1 is of a cross structure, downward supporting legs are arranged at the end part of the cross structure, supporting feet 3 are arranged at the tail ends of the supporting legs 3, arc grooves 9 are formed in the supporting feet 3, pressure feet 2 are inserted between the supporting feet 3, a screw opening is formed in the middle position of the top end of the supporting seat 1, a screw rod 6 is installed in the screw opening, a rotating handle 7 is arranged at the top end of the screw rod 6, an anchor opening 8 is formed in the middle position of the rotating handle 7, and the insert 4 is connected below the screw rod 6;

the connecting rod 5 is installed above the plug-in 4, the top end of the connecting rod 5 is provided with a connecting port 15, the tail end of the screw rod 6 is inserted into the connecting port 15, the inside of the plug-in 4 is provided with an air cavity 17, the air cavity 17 penetrates through the bottom end of the plug-in 4, in addition, the bottom end of the air cavity 17 is provided with a piston 10, the inside of the connecting rod 5 is slidably provided with a pressure lever 16, the pressure lever 16 is in airtight connection with the connecting rod 5, one end of the pressure lever 16 is positioned in the connecting port 15, the other end of the pressure lever is positioned in the air cavity 17, the bottom end of the plug-in 4 is uniformly provided with four groups of accommodating grooves 12, the accommodating grooves 12 penetrate through the edge of the plug-in 4, the guide grooves 13 are arranged above the accommodating grooves 12, the guide grooves 13 are in a T-shaped structure, the guide pieces 11 are slidably installed in the accommodating grooves 12, the guide pieces 14 are integrally formed above the guide pieces 14, the guide pieces 14 are also in a T-shaped structure and are matched with the guide grooves 13, only the upper half part of the T-shaped guide pieces 13 is communicated with the air cavity 17, and the upper part of the T-shaped guide pieces 14 extends backwards to be inserted into the air cavity 17.

The working principle is as follows: firstly, an insert 4 which is matched with the size of a bearing groove of a bearing seat is arranged in a supporting seat 1, the insert 4 is screwed to drive a connecting rod 5 to rotate, so that the connecting rod can be fixed with a screw rod 6 in a threaded manner, only a presser foot 2 which is matched with the appearance of the joint of a molecular pump and the bearing seat is selected and inserted into an arc groove 9, two opposite presser feet 2 are arranged to be conveniently clamped into a gap, the clamped gap can be the gap at the joint of the bearing seat and the molecular pump or the corner point which is arranged above the bearing seat and is used for accommodating a rotor shaft circular groove, then a rotating handle 7 is rotated to enable the screw rod 6 to move downwards, so that the insert 4 is gradually inserted into the bearing seat, and a bottom piston 10 is contacted with the molecular pump along with the downward movement of the insert 4, along with the piston 10 is extruded, the air pressure in the air cavity 17 rises, the four groups of guide grooves 13 are pushed outwards to push the guide piece 14 outwards to be clamped into a gap at the joint of the bearing seat and the molecular pump, the rotating handle 7 starts to be screwed reversely at the moment, the guide piece can be manually or manually clamped into the anchor mouth 8 for driving, the reverse screw 6 drives the connecting rod 5 and the plug-in unit 4 to be lifted upwards, the plug-in piece 11 clamped below the bearing seat can pull the bearing seat to lift up at the same time to take down the bearing seat, and the direction of the reverse rotating handle 7 is the same as the screwing direction of the connecting rod 5 and the screw 6, so that the plug-in unit 4 cannot be loosened when the reverse rotating handle 7 is rotated.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise. Furthermore, the terms "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a molecular pump bearing frame dismounting device, includes supporting seat (1) and plug-in components (4), its characterized in that: install screw rod (6) on supporting seat (1), the top of plug-in components (4) is provided with connecting rod (5), connector (15) have been seted up on the top of connecting rod (5), connecting rod (5) pass through connector (15) and screw rod (6) spiro union, air cavity (17) have been seted up in plug-in components (4), slidable mounting has depression bar (16) in connecting rod (5), insert respectively in connector (15) and air cavity (17) the both ends of depression bar (16), appearance groove (12) have been seted up to the bottom of plug-in components (4), slidable mounting has inserted sheet (11) in appearance groove (12), guide slot (13) and air cavity (17) intercommunication have been seted up to the top of appearance groove (12), install on inserted sheet (11) guide member (14) and insert in guide slot (13).

2. A molecular pump bearing housing dismounting device according to claim 1, characterized in that: the guide groove (13) is of a T-shaped structure, the upper half part of the guide groove (13) is communicated with the air cavity (17), and the guide groove (13) penetrates through the curved surface of the plug-in unit (4).

3. A molecular pump bearing housing disassembly apparatus as claimed in claim 1, wherein: the guide piece (14) is in a T-shaped structure, and the upper half part of the guide piece (14) extends inwards to be inserted into the air cavity (17).

4. A molecular pump bearing housing disassembly apparatus as claimed in claim 1, wherein: a gap is reserved between the end part of the guide piece (14) and the end part of the guide groove (13), and the length of the gap is smaller than the extension length of the guide piece (14).

5. A molecular pump bearing housing disassembly apparatus as claimed in claim 1, wherein: the bottom end of the air cavity (17) is provided with a piston (10), and the piston (10) and the connecting port (15) are both connected with the air cavity (17) in an airtight manner.

6. A molecular pump bearing housing dismounting device according to claim 1, characterized in that: the top end of the supporting seat (1) is of a cross structure, the end part of the cross structure is provided with a supporting foot (3) extending downwards, and each supporting foot (3) is directly inserted with one pressing foot (2).

7. A molecular pump bearing housing disassembly apparatus of claim 6, wherein: an arc groove (9) is formed in the supporting foot (3), and an inserting rod is arranged on the presser foot (2) and inserted into the arc groove (9).