High-speed direct-drive papermaking vacuum pump
By adopting the integrated design of direct drive motor and lubrication system in the paper vacuum pump, the problems of large space, high noise and easy damage of traditional paper vacuum pumps are solved, and an efficient and energy-saving papermaking process is achieved, extending the service life of the equipment and reducing maintenance cost.
Patent Information
- Application Number
- CN202420986078.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-08
- Publication Date
- 2024-12-27
- Estimated Expiration
- 2034-05-08
AI Technical Summary
Traditional paper vacuum pumps use belt connections to cause large equipment space, high noise and lack lubrication functions, resulting in low working efficiency and easy damage.
Design a high-speed direct drive papermaking vacuum pump, integrating direct drive motor, lubrication system, vacuum pump head and frequency converter, adopt direct transmission instead of belt drive, equipped with lubricating oil tank, circulating oil pump and filter device to ensure that the equipment works for a long time at high speeds And prevent wear.
Reduce equipment volume, improve transmission efficiency, reduce the probability of failure, extend the equipment life, reduce construction and operation costs, improve safety and reliability and installation and maintenance convenience.
Smart Images
Figure CN222254373U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of papermaking, in particular to a high-speed direct-drive papermaking vacuum pump. Background Art
[0002] In the wet paper leaf section of the paper machine, the vacuum pump can assist the free flow of wet paper leaves on the net, so that the wet paper leaves form a close contact with the net, so as to better extract moisture. In the pressing part, the vacuum pump can help hold the fibers, control the overall structure of the paper, and ensure good pressing and uniform forming of the paper. In short, the paper machine vacuum pump is one of the indispensable equipment in the production of modern paper machines, and its role is crucial in the production of paper products.
[0003] Traditional vacuum pumps often use belt connections, which results in the equipment space being too large and causing loud noises during use. At the same time, the equipment does not have a lubrication function, which limits its working efficiency and can easily lead to equipment damage if used for a long time. Utility Model Content
[0004] The utility model provides a high-speed direct-drive papermaking vacuum pump to solve the problems of the prior art.
[0005] The purpose of the utility model can be achieved through the following technical solutions: a high-speed direct-drive papermaking vacuum pump, comprising: a truss and a direct-drive motor fixedly arranged on the truss, a lubrication system, a vacuum pump head and a frequency conversion controller, a main shaft is arranged in the direct-drive motor, and the main shaft and the vacuum pump head are drivingly connected, the lubrication system comprises a lubricating oil tank, a circulating oil pump and a circulating oil pipe, the lubricating oil tank is fixedly arranged on the truss, the circulating oil pump is fixedly arranged on the lubricating oil tank, one end of the circulating oil pipe is inserted into the lubricating oil tank, and the other end is connected to the circulating oil pump and the direct-drive motor pipeline in sequence.
[0006] A further improvement is that the vacuum pump head includes an exhaust volute, an air inlet pipe, an air outlet pipe and an impeller. The exhaust volute is fixedly arranged at the upper end of the truss, the air inlet pipe is fixedly arranged at one end of the exhaust volute away from the direct drive motor, the air outlet pipe is arranged at the upper end of the exhaust volute, and the impeller is rotatably arranged in the exhaust volute and is connected to the main shaft transmission.
[0007] As a further improvement, an oil level dipstick is provided on the lubricating oil tank.
[0008] As a further improvement, a plurality of oil pressure gauges are provided on the circulating oil pipe.
[0009] As a further improvement, a filtering device is provided on the circulating oil pipe.
[0010] As a further improvement, two groups of circulating oil pumps and circulating oil pipes are provided correspondingly.
[0011] As a further improvement, the air inlet pipe and the impeller inlet as well as the main shaft and the inner ring of the exhaust volute are both provided with corresponding air sealing rings for sealing.
[0012] Compared with the prior art, the utility model has the following beneficial effects:
[0013] 1. The utility model has a reasonable design. The direct-drive motor, lubrication system, vacuum pump head and frequency conversion controller are all integrated on the same truss, which reduces the size of the equipment and is easy to install. At the same time, the direct-drive motor as the driving mechanism is directly connected to the vacuum pump head, replacing the traditional belt drive, without the speed increase gearbox mechanism and coupling transmission parts, etc., which improves the transmission efficiency while reducing the probability of equipment failures such as belt breakage, etc. It has high efficiency, significant energy saving, lower construction and operation costs, simple structure, safe and reliable use, convenient installation and maintenance, small footprint, and a short investment return period;
[0014] 2. During the use of the utility model, the direct-drive motor is lubricated by the lubrication system. During the lubrication process, the circulating oil pump pumps the lubricating oil from the lubricating oil tank to the inside of the direct-drive motor through the circulating oil pipe for lubrication, so that the direct-drive motor can work for a long time under a higher speed condition, thereby extending the service life of the equipment. At the same time, a cooler can be further provided on the circulating oil pipe. During the circulation of the lubricating oil, part of the heat inside the direct-drive motor is extracted and cooled by the cooler, thereby further extending the service life of the equipment.
[0015] 3. The utility model filters the circulating oil in the circulating oil pipe through the filtering device, so as to prevent the iron filings generated by the wear during the use of the equipment from circulating with the circulating oil and eventually causing damage to the equipment. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a structural schematic diagram of the utility model;
[0017] Figure 2 It is a partial exploded view of the utility model;
[0018] Figure 3 It is a cross-sectional view of the direct drive motor and vacuum pump head of the utility model;
[0019] Figure 4 It is the front view of the utility model.
[0020] In the figure, 1. truss; 2. direct drive motor; 21. main shaft; 3. lubrication system; 31. lubricating oil tank; 311. oil level dipstick; 32. circulating oil pump; 33. circulating oil pipe; 331. oil pressure gauge; 332. filtering device; 4. vacuum pump head; 41 exhaust volute; 42. air inlet pipe; 43. air outlet pipe; 44. impeller; 5. frequency conversion controller; 6. air sealing ring. DETAILED DESCRIPTION
[0021] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.
[0022] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0023] The following is combined with the embodiments and attached Figures 1 to 4 , the technical solution of the utility model is further elaborated.
[0024] Example 1
[0025] A high-speed direct-drive papermaking vacuum pump comprises: a truss 1 and a direct-drive motor 2 fixedly arranged on the truss 1, a lubrication system 3, a vacuum pump head 4 and a frequency conversion controller 5, wherein a main shaft 21 is arranged inside the direct-drive motor 2, and the main shaft 21 is drivingly connected to the vacuum pump head 4, the lubrication system 3 comprises a lubricating oil tank 31, a circulating oil pump 32 and a circulating oil pipe 33, the lubricating oil tank 31 is fixedly arranged on the truss 1, the circulating oil pump 32 is fixedly arranged on the lubricating oil tank 31, one end of the circulating oil pipe 33 is inserted into the lubricating oil tank 31, and the other end is sequentially connected to the circulating oil pump 32 and the direct-drive motor 2 pipeline.
[0026] like Figures 1 to 4 As shown, the utility model has a reasonable design. The direct drive motor 2, the lubrication system 3, the vacuum pump head 4 and the frequency conversion controller 5 are all integrated on the same truss 1, which reduces the size of the equipment and is easy to install. At the same time, the direct drive motor 2 as the driving mechanism is directly connected to the vacuum pump head 4, replacing the traditional belt drive, without the speed increasing gear box mechanism and the coupling transmission parts, etc., which improves the transmission efficiency while reducing the probability of equipment failures such as belt breakage, etc., with high efficiency, significant energy saving, lower construction and operation costs, simple structure, safe and reliable use, convenient installation and maintenance, small footprint, and short investment payback period.
[0027] During use of the utility model, the direct-drive motor 2 is lubricated by the lubrication system 3. During the lubrication process, the circulating oil pump 32 pumps the lubricating oil from the lubricating oil tank 31 to the interior of the direct-drive motor 2 through the circulating oil pipe 33 for lubrication, so that the direct-drive motor 2 can work for a long time under a higher speed condition, thereby extending the service life of the equipment. Furthermore, a cooler can be added to the circulating oil pipe 33. During the circulation of the lubricating oil, part of the heat inside the direct-drive motor 2 is exported and cooled by the cooler, thereby further improving the service life of the equipment.
[0028] As a further preferred embodiment, the vacuum pump head 4 includes an exhaust volute 41, an air inlet pipe 42, an air outlet pipe 43 and an impeller 44. The exhaust volute 41 is fixedly arranged at the upper end of the truss 1, the air inlet pipe 42 is fixedly arranged at one end of the exhaust volute 41 away from the direct drive motor 2, the air outlet pipe 43 is arranged at the upper end of the exhaust volute 41, and the impeller 44 is rotatably arranged on the exhaust volute 41 and is transmission-connected to the main shaft 21.
[0029] As a further preferred embodiment, an oil level dipstick 311 is provided on the lubricating oil tank 31 , and the oil level is visualized by the oil level dipstick 311 , so that the staff can directly and intuitively observe the oil level in the lubricating oil tank 31 .
[0030] As a further preferred embodiment, a plurality of oil pressure gauges 331 are provided on the circulating oil pipe 33 .
[0031] As a further preferred embodiment, a filtering device 332 is provided on the circulating oil pipe 33, and the circulating oil in the circulating oil pipe 332 is filtered by the filtering device 332 to prevent iron filings generated by wear during the use of the equipment from circulating with the circulating oil and eventually causing damage to the equipment.
[0032] As a further preferred embodiment, two groups of the circulating oil pump 32 and the circulating oil pipe 33 are correspondingly provided.
[0033] As a further preferred embodiment, corresponding air sealing rings 6 are provided at the inlet of the air inlet pipe 42 and the impeller 44 as well as at the main shaft 21 and the inner ring of the exhaust volute 41 for sealing, thereby improving the effect of the equipment.
[0034] The preferred specific embodiments of the utility model are described in detail above. It should be understood that ordinary technicians in this field can make many modifications and changes based on the concept of the utility model without creative work. Therefore, all technical solutions that can be obtained by technicians in this technical field based on the concept of the utility model through logical analysis, reasoning or limited experiments on the basis of the existing technology should be within the scope of protection determined by the claims.
Claims
1. A high-speed direct-drive papermaking vacuum pump, characterized in that: include: A truss (1) and a direct drive motor (2) fixedly arranged on the truss (1), a lubrication system (3), a vacuum pump head (4) and a frequency conversion controller (5); a main shaft (21) is arranged inside the direct drive motor (2); the main shaft (21) and the vacuum pump head (4) are transmission-connected; the lubrication system (3) comprises a lubrication oil tank (31), a circulating oil pump (32) and a circulating oil pipe (33); the lubrication oil tank (31) is fixedly arranged on the truss (1); the circulating oil pump (32) is fixedly arranged on the lubrication oil tank (31); one end of the circulating oil pipe (33) is inserted into the lubrication oil tank (31); and the other end is sequentially connected to the circulating oil pump (32) and the direct drive motor (2) pipeline.
2. A high-speed direct-drive papermaking vacuum pump according to claim 1, characterized in that: The vacuum pump head (4) comprises an exhaust volute (41), an air inlet pipe (42), an air outlet pipe (43) and an impeller (44); the exhaust volute (41) is fixedly arranged at the upper end of the truss (1); the air inlet pipe (42) is fixedly arranged at one end of the exhaust volute (41) away from the direct drive motor (2); the air outlet pipe (43) is arranged at the upper end of the exhaust volute (41); and the impeller (44) is rotatably arranged on the exhaust volute (41) and is drivingly connected to the main shaft (21).
3. A high-speed direct-drive papermaking vacuum pump according to claim 1, characterized in that: The lubricating oil tank (31) is provided with an oil level gauge (311).
4. A high-speed direct-drive papermaking vacuum pump according to claim 1, characterized in that: The circulating oil pipe (33) is provided with a plurality of oil pressure gauges (331).
5. A high-speed direct-drive papermaking vacuum pump according to claim 1, characterized in that: The circulating oil pipe (33) is provided with a filtering device (332).
6. A high-speed direct-drive papermaking vacuum pump according to claim 1, characterized in that: The circulating oil pump (32) and the circulating oil pipe (33) are correspondingly provided in two groups.
7. A high-speed direct-drive papermaking vacuum pump according to claim 2, characterized in that: Corresponding air sealing rings (6) are provided at the inlet of the air inlet pipe (42) and the impeller (44) as well as at the inner ring of the main shaft (21) and the exhaust volute (41) for sealing.