Rotor positioning pin mounting tool for dry vacuum pump

Abstract

The utility model discloses a dry vacuum pump rotor positioning pin installation tool which comprises a tool body, the left end of the tool body is provided with a shaft end positioning part, the shaft end positioning part is arranged on a rotor shaft to be installed in a sleeved mode, the top face of the middle of the tool body is provided with a sliding groove, a sliding block is installed in the sliding groove in a sliding mode in the length direction, and the sliding block is connected with the tool body. A pin positioning installation opening is formed in the side, close to the shaft end positioning part, of the sliding block, the pin positioning installation opening is used for installing and fixing a positioning pin to be installed, a lead screw pair is arranged at the right end of the sliding groove and pushes the sliding block to move towards one side of the shaft end positioning part in the moving process, and a rocking handle is connected to the tail end of the lead screw pair. The technical problems that in the prior art, a positioning pin is inaccurate in installation and positioning, low in installation precision and inconvenient to operate are solved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to mechanical technical field especially relates to a dry vacuum pump rotor positioning pin installation tool. BACKGROUND

[0002] With the development of economy, the progress of society, in photovoltaic semiconductor, chemical industry, medicine and other industries, the application range of vacuum pump is more and more wide, and the operation environment is more and more rigorous, so more strict requirements are put forward to the installation condition and precision of vacuum pump. At present, the positioning pin tool of vacuum pump rotating shaft is usually installed manually, so that positioning is difficult, and the operation is inconvenient, which can cause deviation after the positioning pin is installed, and then affect the phase of rotor, cause the uneven clearance between rotors. And because the clearance between vacuum pump rotors is very small, it is difficult to find the error, and in the assembly test stage, due to high-speed rotation of parts and thermal expansion and other factors, it can further amplify the influence, finally cause the rotor to rub and hang, cause the pump body to be stuck. INNOVATION CONTENT

[0003] The utility model discloses a dry vacuum pump rotor positioning pin installation tool, and solves the technical problems of inaccurate positioning, low installation precision and inconvenient operation of the positioning pin in the prior art.

[0004] The utility model discloses a dry vacuum pump rotor positioning pin installation tool, and solves the technical problems of inaccurate positioning, low installation precision and inconvenient operation of the positioning pin in the prior art.

[0005] A kind of dry vacuum pump rotor positioning pin installation tool, including: tool main body, the tool main body left end has shaft end positioning part, the shaft end positioning part sleeve is on the rotor shaft to be installed, the top surface of the tool main body middle part has sliding slot, sliding block is slidably installed in the sliding slot along the length direction, the sliding block is close to the one side of shaft end positioning part and is provided with pin positioning installation mouth, the pin positioning installation mouth is used to install fixed positioning pin to be installed, the right end of the sliding slot is provided with screw pair, the screw pair is moved during movement and pushes sliding block to the one side of shaft end positioning part, the end of screw pair is connected with crank handle.

[0006] The utility model discloses a dry vacuum pump rotor positioning pin installation tool, the shaft end positioning part is the stepped hole structure, the shaft end positioning part includes positioning part and limit portion from bottom to top.

[0007] The utility model discloses a dry vacuum pump rotor positioning pin installation tool, the limit portion makes the bottom of pin positioning installation mouth and the pin hole bottom of rotor shaft to be installed even.

[0008] The utility model discloses a dry vacuum pump rotor positioning pin installation tool, the right end of the sliding slot is provided with limit boss, the limit boss limits the stroke of screw

[0009] The utility model discloses a kind of dry vacuum pump rotor positioning pin installation tool, the screw pair includes lead screw nut and lead screw, the lead screw nut is connected with tool body by bolt, the lead screw is connected with handle.

[0010] The utility model discloses a kind of dry vacuum pump rotor positioning pin installation tool, the top of slider is equipped with slider homing handle.

[0011] The utility model discloses a kind of dry vacuum pump rotor positioning pin installation tool, the top of the pin positioning installation mouth is provided with positioning mouth cover plate.

[0012] The utility model discloses a kind of dry vacuum pump rotor positioning pin installation tool, the top of the pin positioning installation mouth is provided with positioning mouth cover plate. The utility model discloses a kind of dry vacuum pump rotor positioning pin installation tool, the top of the pin positioning installation mouth is provided with positioning mouth cover plate.

[0013] The utility model discloses a kind of dry vacuum pump rotor positioning pin installation tool, the top of the pin positioning installation mouth is provided with positioning mouth cover plate.

[0014] Fig. 1 It is the schematic diagram of the utility model;

[0015] Fig. 2 It is the sectional view of the utility model;

[0016] Fig. 3 It is the use state diagram of the utility model. Specific implementation

[0017] To make the purpose, technical scheme and advantage of the utility model embodiment more clear, the technical scheme in the utility model embodiment will be clearly and completely described in the following with the drawings in the utility model embodiment, obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiment.Obviously, the specific embodiment described here is only used to explain the utility model, and is not used to limit the utility model. Based on the embodiment in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the scope of the utility model protection.

[0018] As Figs. 1-3As shown in the figure, a kind of dry vacuum pump rotor positioning pin installation tool includes: tool body 1, the left end of the tool body 1 has shaft end positioning part 2, the shaft end positioning part 2 is sleeved on the rotor shaft to be installed, the top surface of the middle part of the tool body 1 has sliding groove 3, the sliding block 4 is slidably installed in the sliding groove 3 along the length direction, the sliding block 4 is provided with pin positioning installation port 5 on the side close to the shaft end positioning part 2, the pin positioning installation port 5 is used to install and fix the positioning pin to be installed, the right end of the sliding groove 3 is provided with screw pair 6, the screw pair 6 moves to push the sliding block 4 to move to the side of the shaft end positioning part 2, the end of the screw pair 6 is connected with crank 7.

[0019] It should be noted that the sliding block 4 and the side of the sliding groove 3 are connected by sliding groove, so as to limit the vertical movement of the sliding block 4, and the positioning pin to be installed has a square head, the square head cooperates with the pin positioning installation port 5 to realize horizontal positioning, and then vertical positioning is realized by contacting with the bottom of the sliding groove 3.

[0020] As a preferred embodiment, the shaft end positioning part 2 is in stepped hole structure, and the shaft end positioning part 2 includes positioning part 21 and limiting part 22 from bottom to top. The positioning part 2 cooperates with the side of the shaft, and the positioning part 21 cooperates with the end face of the stepped shaft to realize positioning and limiting.

[0021] As a preferred embodiment, the limiting part 22 makes the bottom of the pin positioning installation port 5 flush with the bottom of the pin hole of the rotor shaft to be installed, and the size control of the limiting part makes the positioning pin and the position of the pin hole guided and positioned.

[0022] As a preferred embodiment, the right end of the sliding groove 3 is provided with limiting boss 63, and the limiting boss 63 limits the stroke of the screw 62. Such arrangement can accurately control the installation depth of the positioning pin.

[0023] As a preferred embodiment, the screw pair 6 includes screw nut 61 and screw 62, the screw nut 61 is connected with the tool body 1 by bolt, and the screw 62 is connected with crank 7.

[0024] As a preferred embodiment, the top of the sliding block 4 is provided with sliding block homing handle 41, and such structure can manually push the sliding block 4 back to the initial position when installing the positioning pin, so as to initially position the positioning pin in the pin positioning installation port 5.

[0025] As a preferred embodiment, the top of the pin positioning installation port 5 is provided with positioning port cover plate 51.

[0026] Brief working principle:

[0027] During installation, the slider 4 is pushed to the right first, then the positioning pin of the rotor is installed in the pin positioning installation port 5, thereby limiting the angle of the positioning pin; then the whole tool is slowly placed on the shaft to be installed from top to bottom, the positioning part 21 and the limiting part 22 are matched with the cylindrical stepped surface of the shaft to be installed, the positioning cutting pin to be installed is flush with the pin hole, thereby ensuring the horizontal dimension. Then the handle 7 is shaken, the lead screw 62 drives the slider 4 to move horizontally, the positioning pin of the slider 4 is slowly pushed into the pin hole on the shaft, and the installation purpose is achieved.

[0028] In the description of the utility model, it is explained that, the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only used for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model. In addition, the terms "first" and "second" are only used for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0029] In the description of the utility model, it is explained that, unless otherwise specified and limited, the terms "installation", "connection", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integral connection; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or the communication between two elements. For ordinary skilled persons in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances. In addition, in the description of the utility model, unless otherwise stated, the meaning of "multiple" is two or more.

[0030] It should be understood that, for ordinary skilled persons in the art, the above description can be improved or changed, and all these improvements and changes should belong to the protection scope of the claims of the utility model.

Claims

1. A fixture for installing a rotor positioning pin of a dry vacuum pump, characterized in that, include: The tooling body (1) has a shaft end positioning part (2) at the left end, which is sleeved on the rotor shaft to be installed. The tooling body (1) has a groove (3) on the top surface in the middle, and a slider (4) is slidably installed in the groove (3) along the length direction. The slider (4) has a pin positioning installation port (5) on the side near the shaft end positioning part (2), which is used to install and fix the positioning pin to be installed. The groove (3) has a lead screw pair (6) at the right end, which pushes the slider (4) to move towards the shaft end positioning part (2) during the movement. The end of the lead screw pair (6) is connected to a rocker arm (7).

2. The dry vacuum pump rotor positioning pin installation fixture according to claim 1, characterized in that, The shaft end positioning part (2) has a stepped hole structure, and the shaft end positioning part (2) includes a positioning part (21) and a limiting part (22) from bottom to top.

3. The dry vacuum pump rotor positioning pin installation fixture according to claim 2, characterized in that, The limiting part (22) aligns the bottom of the pin positioning mounting port (5) with the bottom of the pin hole of the rotor shaft to be installed.

4. The dry vacuum pump rotor positioning pin installation fixture according to claim 3, characterized in that, The right end of the slide (3) has a limiting boss (63), which limits the stroke of the lead screw (62).

5. The dry vacuum pump rotor positioning pin installation fixture according to claim 4, characterized in that, The lead screw assembly (6) includes a lead screw nut (61) and a lead screw (62). The lead screw nut (61) is connected to the tooling body (1) by bolts, and the lead screw (62) is connected to the crank handle (7).

6. The dry vacuum pump rotor positioning pin installation fixture according to claim 5, characterized in that, The top of the slider (4) is provided with a slider return handle (41).

7. The dry vacuum pump rotor positioning pin installation fixture according to claim 6, characterized in that, The top of the pin positioning mounting port (5) is provided with a positioning port cover plate (51).

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