Rotary vane adsorption device with adjustable range

Abstract

The utility model relates to an adsorption device, and particularly discloses a range-adjustable rotary vane adsorption device, which comprises a disc body, a plurality of adsorption areas arranged on the upper surface of the disc body, and a negative pressure device connected with the adsorption areas, the adsorption area comprises a plurality of grooves which are formed in the upper side of the tray body in a criss-cross manner, and negative pressure holes which are communicated with one or more grooves; one workpiece is placed on one adsorption area, the grooves are filled with closed-loop sealing rubber strips, and all the sealing rubber strips are arranged under the workpieces; the negative pressure device is arranged on the lower surface of the disc body and communicated with the multiple negative pressure holes at the same time. According to the range-adjustable rotary vane adsorption device disclosed by the utility model, corresponding adjustment can be efficiently carried out according to the size of a rotary vane, so that a good adsorption effect can be achieved on each type of rotary vane.

Description

Technical Field

[0001] This utility model relates to the technical field of adsorption devices, and more specifically, to a range-adjustable rotary blade adsorption device. Background Technology

[0002] A rotary vane vacuum pump is a type of rotary variable volume vacuum pump in which the rotor, which is eccentrically mounted inside the pump, is tangent to the fixed surface of the stator. Two (or more) vanes slide (usually radially) in the rotor slots and contact the inner wall of the stator, dividing the pump chamber into several variable volumes.

[0003] Rotary vanes are a crucial component of rotary vane vacuum pumps. The vanes themselves are relatively flat, plate-like structures. After rough machining, their surface requires finishing. Before fine machining, the vanes need to be fixed. Since the machining process involves the entire surface of the vanes, fixing devices that press against the vane surface cannot be used. Therefore, negative pressure adsorption can be used to adsorb and fix the vanes. To improve the strength of the negative pressure adsorption and the uniformity of force on the vanes, a large negative pressure zone is usually set on the lower surface of the vanes (i.e., the negative pressure zone should cover as large an area as possible on the lower surface of the vanes). However, the machining process may involve various specifications and models of vanes. Therefore, an adsorption device suitable for one size of vane may not be suitable for other vanes. Designing and manufacturing multiple adsorption devices is not only costly but also cumbersome to switch between during use. Therefore, an adsorption device that can easily switch between multiple vane sizes can be designed. Utility Model Content

[0004] The purpose of this invention is to provide an adjustable rotary blade adsorption device that can be efficiently adjusted according to the size of the rotary blades, so that it can have a good adsorption effect on each type of rotary blade.

[0005] This utility model is achieved through the following technical solution: The adjustable rotary blade adsorption device of this utility model includes a disc body, multiple adsorption zones disposed on the upper surface of the disc body, and a negative pressure device connected to the adsorption zones; the adsorption zone includes multiple grooves crisscrossed on the upper side of the disc body, and a negative pressure hole communicating with one or more of the grooves; a workpiece is placed on one of the adsorption zones, the grooves are filled with closed-loop sealing strips, and all the sealing strips are disposed directly below the workpiece; the negative pressure device is disposed on the lower surface of the disc body, and the negative pressure device is simultaneously connected to multiple negative pressure holes.

[0006] Furthermore, the adsorption zone also includes a positioning rod disposed on the upper surface of the disc; the positioning rod does not coincide with the groove and the negative pressure hole.

[0007] Furthermore, the positioning rod is detachably connected to the disc body.

[0008] Furthermore, the upper surface of the disc body is provided with multiple positioning grooves, and one positioning rod is inserted into one of the positioning grooves.

[0009] Furthermore, the positioning rod is threadedly connected to the positioning groove.

[0010] Furthermore, the lower surface of the disc body is provided with a storage groove, and the negative pressure device is located in the storage groove.

[0011] Furthermore, the negative pressure device includes a main pipe disposed in the storage tank, a negative pressure machine connected to the main pipe, and a plurality of negative pressure pipes disposed on the side wall of the main pipe; the negative pressure hole is connected to the storage tank, and one of the negative pressure pipes is connected to one of the negative pressure holes; the main pipe passes through the side wall of the storage tank and is connected to the negative pressure machine.

[0012] Furthermore, a valve is provided on the negative pressure pipe.

[0013] The technical solution of this utility model has at least the following advantages and beneficial effects: In use, the adjustable-range rotary blade adsorption device of this utility model adsorbs the rotary blade onto the negative pressure hole. Then, according to the shape and size of the rotary blade, a corresponding sealing strip is filled into the groove, making the sealing strip form a closed loop and entirely located below the rotary blade. The negative pressure device can then be activated, generating negative pressure in the negative pressure hole. Since the negative pressure hole and the nearby groove are connected, negative pressure can be generated in the groove within the area enclosed by the sealing strip, thus generating negative pressure over a larger area below the rotary blade, better adsorbing it. Because the negative pressure is only generated in the groove, and the groove width is small, the influence of the suction force of the negative pressure on the rotary blade's deformation is smaller. Furthermore, sealing strips of the corresponding shape can be filled according to the specific shape of the rotary vane (unused sealing strips can be removed directly). This not only firmly fixes the rotary vane and prevents it from shaking during surface processing, but also allows for the adjustment of the sealing strips in the adsorption area according to the specific shape and size of the rotary vane. Attached Figure Description

[0014] Figure 1 A schematic diagram of the adjustable rotary blade adsorption device provided in an embodiment of this utility model from one perspective;

[0015] Figure 2 A two-view structural schematic diagram of the range-adjustable rotary blade adsorption device provided in an embodiment of this utility model;

[0016] Figure 3 A schematic diagram of the adjustable rotary blade adsorption device provided in this embodiment of the present invention during use;

[0017] Figure 4This is a schematic diagram of the structure of the sealing strip after it is separated from the disc body according to an embodiment of the present invention;

[0018] Icons: 11-Disc body, 12-Storage slot, 20-Adsorption area, 21-Groove, 22-Negative pressure hole, 23-Positioning slot, 24-Positioning rod, 25-Sealing strip, 30-Negative pressure device, 31-Main pipe, 32-Negative pressure pipe, 33-Valve, 40-Rotating vane. Detailed Implementation

[0019] Example

[0020] The following description, in conjunction with specific embodiments, further illustrates the points, as shown in the appendix. Figure 1 - Appendix Figure 4 As shown, the adjustable rotary blade adsorption device of this embodiment includes a disc body 11, multiple adsorption zones 20 disposed on the upper surface of the disc body 11, and a negative pressure device 30 connected to the adsorption zones 20. Each adsorption zone 20 includes multiple crisscrossing grooves 21 formed on the upper side of the disc body 11, and negative pressure holes 22 communicating with one or more of the grooves 21. A workpiece is placed on one adsorption zone 20, and the grooves 21 are filled with closed-loop sealing strips 25, all positioned directly below the workpiece. The negative pressure device 30 is disposed on the lower surface of the disc body 11 and simultaneously communicates with multiple negative pressure holes 22. Specifically, in use, the rotary blade 40 is adsorbed onto the negative pressure holes 22, and then, according to the shape and size of the rotary blade 40, corresponding sealing strips 25 are filled into the grooves 21, so that the sealing strips 25 form a closed loop (as shown in the attached diagram). Figure 4 As shown, the sealing strip 25 is removed from the groove 21 and is completely positioned below the rotary vane 40. Then, the negative pressure device 30 can be activated, generating negative pressure in the negative pressure hole 22. Since the negative pressure hole 22 is connected to the nearby groove 21, negative pressure can be generated in the groove 21 within the area enclosed by the sealing strip 25, thus creating negative pressure over a larger area below the rotary vane 40, better holding the vane 40 in place. Because the negative pressure is only generated in the groove 21, and the groove 21 is relatively narrow, the impact of the suction force of the negative pressure on the deformation of the rotary vane 40 is minimal. Furthermore, sealing strips 25 of corresponding shapes can be filled according to the specific shape of the rotary vane 40 (unused sealing strips 25 can be directly removed). This not only firmly fixes the rotary vane 40, preventing it from shaking during surface processing, but also allows for adjustments to the sealing strips 25 in the adsorption area 20 based on the specific shape and size of the rotary vane 40.

[0021] In this embodiment, the adsorption zone 20 also includes a positioning rod 24 disposed on the upper surface of the disk body 11; the positioning rod 24 does not coincide with the groove 21 and the negative pressure hole 22. The positioning rod 24 is detachably connected to the disk body 11. The upper surface of the disk body 11 is provided with multiple positioning grooves 23, and one positioning rod 24 is inserted into one positioning groove 23. The positioning rod 24 is threadedly connected to the positioning groove 23. Specifically, first, install the corresponding positioning rod 24 according to the shape of the rotating plate 40, and then press the side of the rotating plate 40 tightly against the side wall of the positioning rod 24 (it is only necessary to make the adjacent two sides of the rotating plate 40 contact the positioning rod 24), so that the rotating plate 40 can be fixed with the assistance of the positioning rod 24.

[0022] In this embodiment, the lower surface of the disc 11 is provided with a storage groove 12, and the negative pressure device 30 is disposed in the storage groove 12. The negative pressure device 30 includes a main pipe 31 disposed in the storage groove 12, a negative pressure machine connected to the main pipe 31, and a plurality of negative pressure pipes 32 disposed on the side wall of the main pipe 31; a negative pressure hole 22 is connected to the storage groove 12, and one negative pressure pipe 32 is connected to one negative pressure hole 22; the main pipe 31 passes through the side wall of the storage groove 12 and is connected to the negative pressure machine. A valve 33 is provided on the negative pressure pipe 32. Specifically, the negative pressure machine generates negative pressure in the negative pressure hole 22 and the groove 21 through the main pipe 31 and the negative pressure pipes 32, thereby sucking the rotating vane 40. A valve 33 is provided on each negative pressure pipe 32, which can be selected to open or close as needed.

[0023] In summary, the adjustable-range rotary blade adsorption device of this embodiment, when in use, adsorbs the rotary blade 40 onto the negative pressure hole 22, and then fills the groove 21 with a corresponding sealing strip 25 according to the shape and size of the rotary blade 40, so that the sealing strip 25 is in a closed loop and is entirely located below the rotary blade 40. Then the negative pressure device 30 can be turned on, and negative pressure is generated in the negative pressure hole 22 through the negative pressure device 30. Since the negative pressure hole 22 and the nearby groove 21 are connected, negative pressure can be generated in the groove 21 within the area enclosed by the sealing strip 25, thereby generating negative pressure over a larger area below the rotary blade 40, better adsorbing the rotary blade 40. Since the negative pressure is only generated in the groove 21, and the width of the groove 21 is small, the influence of the suction force of the negative pressure on the rotary blade 40 on the deformation of the rotary blade 40 is smaller. Furthermore, the sealing strip 25 of the corresponding shape can be filled according to the specific shape of the rotary vane 40 (unused sealing strips 25 can be directly removed). This not only firmly fixes the rotary vane 40 and prevents the rotary vane 40 from shaking when its surface is processed, but also allows for the corresponding adjustment of the sealing strip 25 in the adsorption area 20 according to the specific shape and size of the rotary vane 40.

[0024] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A range adjustable scroll adsorption device, characterized by: The utility model discloses a disc body (11), a plurality of adsorption area (20) on the upper surface of the disc body (11) and the negative pressure device (30) connected with the adsorption area (20) are provided; The adsorption area (20) includes a plurality of longitudinal and horizontal staggered grooves (21) on the upper side of the disc body (11), and a negative pressure hole (22) in communication with one or more of the grooves (21); a workpiece is placed on one of the adsorption areas (20), the groove (21) is filled with a closed loop sealing rubber strip (25), and the sealing rubber strip (25) is entirely disposed below the workpiece; The negative pressure device (30) is disposed on the lower surface of the disc body (11), and the negative pressure device (30) is in communication with a plurality of negative pressure holes (22) at the same time.

2. A range adjustable scroll adsorption device according to claim 1, characterized in that: The adsorption area (20) further includes a positioning rod (24) disposed on the upper surface of the disc body (11); the positioning rod (24) does not coincide with the groove (21) and the negative pressure hole (22).

3. A range adjustable scroll adsorption device according to claim 2, wherein: The positioning rod (24) is detachably connected with the disc body (11).

4. A range adjustable scroll adsorption device according to claim 3, wherein: The upper surface of the disc body (11) is provided with a plurality of positioning grooves (23), and one positioning rod (24) is inserted into one positioning groove (23).

5. A range adjustable scroll adsorption device according to claim 4, wherein: The positioning rod (24) is threadedly connected with the positioning groove (23).

6. The adjustable range rotary vane adsorbent device of claim 1, wherein: The lower surface of the disc body (11) is provided with a storage groove (12), and the negative pressure device (30) is disposed in the storage groove (12).

7. A range adjustable scroll adsorption device according to claim 6, wherein: The negative pressure device (30) includes a main pipe (31) disposed in the storage groove (12), a negative pressure machine connected with the main pipe (31), and a plurality of negative pressure pipes (32) disposed on the side wall of the main pipe (31); The negative pressure hole (22) is in communication with the storage groove (12), and one negative pressure pipe (32) is in communication with one negative pressure hole (22); the main pipe (31) is in communication with the negative pressure machine after penetrating through the side wall of the storage groove (12).

8. A range adjustable scroll adsorption device according to claim 7, wherein: The negative pressure pipe (32) is provided with a valve (33).

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