Cooling circulation mechanism

Abstract

The invention discloses a cooling circulation mechanism, which is arranged on a vacuum pump and comprises a main shell, a water inlet pipe and a water outlet pipe, the main shell is internally provided with an accommodating space, and the main shell is provided with a water inlet pipe and a water outlet pipe which are communicated with the accommodating space; the rotating assembly is rotationally connected with the main shell and comprises a connecting body and an impeller arranged on one side of the connecting body, the impeller is arranged in the containing space, the connecting body extends to the outer side of the main shell, and a first magnetic set is arranged on the connecting body; the adapter shell is arranged on the outer side of the connecting body in a surrounding mode, the adapter shell does not make contact with the connecting body, a connecting piece is arranged on the adapter shell, the connecting piece is used for being connected with a rotor shaft of the vacuum pump, a second magnetic set is arranged on the adapter shell, and the first magnetic set and the second magnetic set interact with each other. The circulating mechanism is directly connected with the vacuum pump for use, driving of the circulating mechanism is achieved through rotation of the rotor, external accessories are not needed, and meanwhile the sealing performance is good and leakage is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of vacuum pump accessories, and in particular to a cooling circulation mechanism. Background Art

[0002] A vacuum pump is a device that uses mechanical, physical, chemical or physicochemical methods to evacuate the container to obtain a vacuum. Current vacuum pumps are usually equipped with a water cooling module to cool it down, such as a vacuum pump working water depth cooling device disclosed in patent number CN203239642U, which includes a vacuum pump, a gas-water separator, and a working water cooler, wherein the air outlet of the vacuum pump is connected to the air inlet of the gas-water separator, the separator outlet of the gas-water separator is connected to the inlet of the working water cooler, and the outlet of the working water cooler is connected to the water supply port of the vacuum pump. A working water depth cooling device and a switching valve for switching the working water cooler and the working water depth cooling device to work independently are set on the pipeline between the vacuum pump and the working water cooler. This type of cooling device requires an external water pump to realize the recycling of cooling water, has many external accessories, and occupies a large space, which is insufficient. Summary of the invention

[0003] The present invention aims to avoid the deficiencies of the prior art and provides a cooling circulation mechanism suitable for a vacuum pump.

[0004] The present invention solves the technical problem by adopting the following technical solution: a cooling circulation mechanism is arranged on a vacuum pump, comprising:

[0005] A main shell, wherein the main shell has a containing space, and the main shell is provided with a water inlet pipe and a water outlet pipe connected with the containing space;

[0006] A rotating assembly rotatably connected to the main housing, the rotating assembly comprising a coupling body and an impeller arranged on one side of the coupling body, the impeller being arranged in the accommodating space, the coupling body extending to the outside of the main housing, and a first magnetic group being arranged on the coupling body;

[0007] A transfer shell is arranged around the outside of the coupling body, and there is no contact between the transfer shell and the coupling body. A connecting piece is arranged on the transfer shell, and the connecting piece is used to connect with the rotor shaft of the vacuum pump. A second magnetic group is arranged on the transfer shell, and the first magnetic group interacts with the second magnetic group.

[0008] In several embodiments, a receiving groove is further provided in the main shell, the receiving groove is communicated with the receiving space, a connecting shaft is provided on the receiving groove, and the connecting shaft is used to penetrate the rotating component.

[0009] In several embodiments, the containing tank is coaxially arranged with the containing space, the water inlet pipe is connected to the containing space, and the water outlet pipe is connected to the containing tank.

[0010] In several embodiments, a sealing cover is further included on the main shell, wherein the sealing cover is used to seal the accommodating space, and the rotating assembly is enclosed in the sealing cover.

[0011] In several embodiments, the sealing cover body includes a ring body, a containing shell is disposed on one side of the ring body, the containing shell is communicated with the ring body, and the coupling body can pass through the ring body and penetrate into the containing shell.

[0012] In several embodiments, a positioning protrusion is provided on the ring body, and a positioning groove is provided on the end surface of the main shell body, and the positioning protrusion is plug-fitted with the positioning groove.

[0013] In several embodiments, a plurality of connecting plates are disposed around the ring body, and the connecting plates are connected to the main shell body through locking members.

[0014] In several embodiments, the adapter housing is rotatably disposed outside the accommodating housing.

[0015] The beneficial effects of the present invention are:

[0016] The present invention is directly connected to a vacuum pump for use, and the driving of the circulation mechanism is achieved through the rotation of the rotor without the need for external accessories.

[0017] The present invention realizes contactless transmission between the transfer housing and the rotating assembly through magnetic cooperation between the rotating assembly and the transfer housing when the rotor drives the transfer housing to rotate.

[0018] The invention has good sealing performance and no leakage between transmission parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings described herein are for illustrative purposes only of selected embodiments and do not represent all possible implementations, and should not be considered to limit the scope of the present invention.

[0020] Figure 1 The structure of the cooling cycle mechanism in this embodiment is schematically shown;

[0021] Figure 2 Schematically shows Figure 1 The rear view structure;

[0022] Figure 3 Schematically shows Figure 2 The cross-sectional structure in the AA direction;

[0023] Figure 4 Schematically shows Figure 1 Explosion structure;

[0024] Figure 5 Schematically shows Figure 4 The enlarged structure of the middle sealing cover;

[0025] Figure 6 Schematically shows Figure 4 The enlarged structure of the main shell. DETAILED DESCRIPTION

[0026] Below, embodiments of the present invention are described in detail with reference to the accompanying drawings. To make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0027] Therefore, the following detailed description of the embodiments of the present invention provided in conjunction with the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. All other embodiments obtained by ordinary technicians in the field based on the embodiments of the present invention without making any creative work are within the scope of protection of the present invention.

[0028] like Figure 1-Figure 6 As shown, the cooling circulation mechanism in this embodiment, when used in combination with a vacuum pump, can realize the cooling water circulation of the vacuum pump, and is mainly composed of a main shell 10, a rotating component 20 rotatably connected to the main shell 10, a sealing cover body 40 arranged on the main shell 10 and surrounding the outside of the rotating component 20, and a transfer shell 30 arranged around the rotating component 20 and the outside of the sealing cover body 40.

[0029] Specifically, a accommodating space 11 is provided in the main shell 10, and a water inlet pipe 101 and a water outlet pipe 102 connected to the accommodating space 11 are provided on the main shell 10. A accommodating groove 12 is also provided in the main shell 10, and the accommodating groove 12 is connected to the accommodating space 11. A connecting shaft 13 is provided on the accommodating groove 12, and the connecting shaft 13 is used to penetrate the rotating component 20. The accommodating groove 12 is coaxially arranged with the accommodating space 11, the water inlet pipe 101 is connected to the accommodating space 11, and the water outlet pipe 102 is connected to the accommodating groove 12, thereby realizing effective and stable circulation reflux of cooling water in the accommodating space 11 and the accommodating groove 12.

[0030] In addition, the rotating component 20 includes a coupling body 21 and an impeller 22 arranged on one side of the coupling body 21, the impeller 22 is arranged in the accommodating space 11, the coupling body 21 extends to the outside of the main shell 10, and a first magnetic group is arranged on the coupling body 21, and the first magnetic group is evenly distributed on the outer curved surface of the coupling body 21.

[0031] In addition, the adapter shell 30 is arranged around the outside of the connecting body 21, and there is no contact between the adapter shell 30 and the connecting body 21. The adapter shell 30 is provided with a connecting piece 31, and the connecting piece 31 is used to be connected to the rotor shaft of the vacuum pump. The adapter shell 30 is provided with a second magnetic group, and the second magnetic group is evenly distributed on the inner curved surface of the adapter shell 30, and is located opposite to the first magnetic group. Therefore, the first magnetic group interacts with the second magnetic group to realize contactless transmission.

[0032] Furthermore, the sealing cover 40 is used to seal the accommodating space 11 , and the rotating assembly 20 is sealed inside the sealing cover 40 .

[0033] Among them, the sealing cover body 40 includes a ring body 41, and a accommodating shell 42 is arranged on one side of the ring body 41. The accommodating shell 42 is connected to the ring body 41, and the connecting body 21 can pass through the ring body 41 and penetrate into the accommodating shell 42. The accommodating shell 42 is placed between the connecting body 21 and the adapter shell 30, that is, the adapter shell 30 is rotatably arranged on the outside of the accommodating shell 42, and there is a gap for rotation between the accommodating shell 42 and both.

[0034] Among them, a circle of positioning protrusions 411 is arranged on the ring body 41, and a circle of positioning grooves 103 is arranged on the end surface of the main shell body 10. The positioning protrusions 411 are plug-fitted with the positioning grooves 103 to facilitate the positioning connection between the two.

[0035] In order to improve the connection effect, a plurality of connection plates 411 are arranged around the ring body 41 , and the connection plates 411 are connected to the main housing 10 through locking members such as bolts.

[0036] All the methods described herein can be performed in any suitable order. Any and all examples used, or exemplary language (such as "for example") provided herein are merely to better illustrate the present invention and are not intended to limit the scope of the present invention, unless the claims are included. The language in the detailed description should not be construed as indicating any essential factors for practicing the present invention that are not claimed.

[0037] The present invention describes preferred embodiments, including the best mode of carrying out the invention known to the inventors. Of course, variations of these preferred embodiments will be apparent to those skilled in the art. The inventors anticipate that the skilled artisan may use such variations as appropriate, and the inventors indicate that the present invention may be implemented in other ways than those specifically described herein. Therefore, the present invention includes all modifications encompassed by the spirit and scope of the invention as defined by the claims. Furthermore, unless otherwise stated or clearly contradictory in context, the present invention includes any of the above-described factors and all possible variations thereof.

Claims

1. A cooling circulation mechanism, arranged on a vacuum pump, characterized in that: include: A main shell (10), wherein the main shell (10) has a containing space (11) therein, and the main shell (10) is provided with a water inlet pipe (101) and a water outlet pipe (102) which are connected to the containing space (11); A rotating assembly (20) rotatably connected to the main housing (10), the rotating assembly (20) comprising a coupling body (21) and an impeller (22) arranged on one side of the coupling body (21), the impeller (22) being arranged in the accommodating space (11), the coupling body (21) extending to the outside of the main housing (10), and a first magnetic group being arranged on the coupling body (21); A transfer shell (30) is arranged around the outside of the connecting body (21), and there is no contact between the transfer shell (30) and the connecting body (21). A connecting piece (31) is arranged on the transfer shell (30), and the connecting piece (31) is used to connect to the rotor shaft of the vacuum pump. A second magnetic group is arranged on the transfer shell (30), and the first magnetic group interacts with the second magnetic group.

2. A cooling cycle mechanism according to claim 1, characterized in that: The main housing (10) is also provided with a receiving groove (12), the receiving groove (12) being in communication with the receiving space (11), and the receiving groove (12) is provided with a connecting shaft (13), the connecting shaft (13) being used to penetrate the rotating assembly (20).

3. A cooling cycle mechanism according to claim 2, characterized in that: The containing groove (12) is coaxially arranged with the containing space (11); the water inlet pipe (101) is connected to the containing space (11); and the water outlet pipe (102) is connected to the containing groove (12).

4. A cooling cycle mechanism according to claim 1, characterized in that: It also includes a sealing cover (40) arranged on the main shell (10), wherein the sealing cover (40) is used to seal the accommodating space (11), and the rotating assembly (20) is sealed inside the sealing cover (40).

5. A cooling cycle mechanism according to claim 4, characterized in that: The sealing cover body (40) comprises a ring body (41), a containing shell (42) is provided on one side of the ring body (41), the containing shell (42) is communicated with the ring body (41), and the coupling body (21) can pass through the ring body (41) and penetrate into the containing shell (42).

6. A cooling cycle mechanism according to claim 5, characterized in that: A positioning protrusion (411) is provided on the ring body (41), and a positioning groove (103) is provided on the end surface of the main housing (10), and the positioning protrusion (411) is plug-fitted with the positioning groove (103).

7. A cooling cycle mechanism according to claim 6, characterized in that: The ring body (41) is provided with a plurality of connecting plates (411) around its periphery, and the connecting plates (411) are connected to the main housing (10) via locking members.

8. A cooling cycle mechanism according to claim 5, characterized in that: The adapter housing (30) is rotatably arranged outside the accommodating housing (42).

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