Small low-noise self-priming gear pump
By introducing filtration, sound insulation, and lubrication components into the gear pump, the problems of impurity entry and noise have been solved, achieving a low-noise, long-life gear pump design and improving the stability and safety of equipment operation.
Patent Information
- Application Number
- CN202422772910.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-14
- Publication Date
- 2025-11-07
- Estimated Expiration
- 2034-11-14
AI Technical Summary
Traditional gear pumps lack filtration devices, allowing impurities from the sucked liquid to enter, increasing noise and accelerating wear. Furthermore, the lubricating oil between the bearing housing and the motor output shaft dries out, causing noise and rotation problems.
The design incorporates a filtration assembly, a sound insulation assembly, and a lubrication assembly, including a filter box, a filter screen, a collection frame, a sound insulation panel, and a lubrication system. By filtering impurities, reducing noise, and lubricating the system, it prevents impurities from entering the gear pump, thereby reducing noise and extending service life.
It effectively filters impurities, reduces noise, extends the service life of gear pumps, reduces noise hazards, ensures smooth rotation of the output shaft, and protects hearing and equipment health.
Smart Images
Figure CN223523956U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to gear pump technical field especially relates to a small low noise self priming gear pump. BACKGROUND
[0002] Gear pump is the rotary pump that relies on the volume change and movement of the working volume formed between pump cylinder and meshing gear to transport liquid or make it pressurized, is composed of two gears, pump body and front and back cover two closed spaces, when the gear rotates, the volume of the space on the gear disengagement side changes from small to big, forms vacuum, absorbs liquid, the volume of the space on the gear meshing side changes from big to small, and liquid is extruded into the pipeline. The suction chamber and the discharge chamber are separated by the meshing line of the two gears. The pressure of the discharge port of the gear pump depends entirely on the size of the resistance at the pump outlet, and the gear pump has a series of advantages such as small volume, light weight, simple structure, low price, reliable work, good self-priming performance, not sensitive to oil pollution, easy maintenance, etc., and is widely used in industry, agriculture and other industries.
[0003] At present, the gear pump gradually finds the following defects in the process of installation and use:
[0004] (1) The traditional gear pump does not have a filter device, the inhaled liquid may contain impurities, the impurities entering the gear pump not only increase the noise of the gear pump, but also accelerate the wear of the gear inside the pump body, shorten the service life of the gear pump;
[0005] (2) The lubricating oil between the bearing seat and the motor output shaft of the gear pump will be dry after long time use, so that the output shaft will produce noise and affect rotation when rotating. SUMMARY
[0006] In order to overcome the defects of the prior art pointed out above, the utility model person has made deep research, and after paying a lot of creative labor, the utility model is completed.
[0007] Specifically, the technical problem to be solved by the utility model is to provide a small low noise self priming gear pump to solve the technical problem that the traditional gear pump does not have a filter device, the inhaled liquid may contain impurities, the impurities entering the gear pump not only increase the noise of the gear pump, but also accelerate the wear of the gear inside the pump body, shorten the service life of the gear pump.
[0008] To solve the above technical problems, the utility model provides the following technical scheme:
[0009] The utility model provides a small low noise self suction gear pump, including the pump body, one side of the pump body is equipped with motor, the first gear is drivenly connected to the motor output end, the inside of the pump body is equipped with the second gear, the first gear and the second gear correspondingly engage, one end of the pump body is equipped with the liquid inlet channel, the other end of the pump body is equipped with the liquid outlet channel, one end of the liquid inlet channel is equipped with the filter assembly, the outside of the pump body is equipped with the sound insulation assembly, be equipped with lubricating assembly on the sound insulation assembly,
[0010] The filter assembly includes a filter box, one side of the filter box is in communication with the liquid inlet channel, a filter screen is arranged inside the filter box, the filter screen is arranged obliquely, a collection chamber is arranged at one end of the filter box, a collection frame is arranged inside the collection chamber, a filter screen is arranged at the communication part between the collection chamber and the filter box, a cover plate is arranged on the top of the collection frame, and screws are symmetrically arranged on the cover plate.
[0011] As an improved technical solution, the other side of the filter box is provided with an input port, and the collection frame is slidably connected with the collection chamber.
[0012] As an improved technical solution, the sound insulation assembly comprises a first sound insulation plate, the first sound insulation plate is arranged on the outside of the pump body, a first housing is arranged on the outside of the first sound insulation plate, a second sound insulation plate is arranged on the outside of the first housing, and a second housing is arranged on the outside of the second sound insulation plate.
[0013] As an improved technical solution, the motor output shaft penetrates the first housing and the second housing.
[0014] As an improved technical solution, the lubricating assembly comprises an oil storage tank, the oil storage tank is arranged between the first housing and the second housing, a compression channel is arranged on the top of the oil storage tank, a piston is arranged inside the compression channel, a sliding rod is arranged on the top of the piston, the sliding rod extends to the outside of the second housing, a spring is sleeved on the outer surface of the sliding rod, and the spring is arranged between the piston and the second housing.
[0015] As an improved technical solution, one side of the second housing is provided with an oil supplement channel, and the oil supplement channel and the compression channel are in communication.
[0016] After the above technical scheme is adopted, the utility model has the beneficial effects that:
[0017] 1. The utility model discloses a filter screen in the filter box is filtered to the liquid in the gear pump, prevents the impurity from entering the gear pump, and the impurity is collected through the collection frame, and the subsequent cleaning is facilitated, the liquid is filtered through the filter screen, not only the noise of the gear pump is reduced, but also the wear of the gear inside the pump body is slowed down, and the service life of the gear pump is increased.
[0018] 2. The utility model discloses, through the sliding rod drive piston moves downward along the compression channel, through the piston extrudes the lubricating oil in the oil storage tank to the output shaft, lubrication treatment is carried out to the output shaft, makes the bearing pedestal and the motor output shaft between play lubricating effect, reduces the noise emergence and will not influence the rotation problem when the output shaft rotates;
[0019] 3. The utility model discloses, through the first sound insulation board and second sound insulation board carry out the noise reduction treatment to gear pump, through the secondary noise reduction treatment, greatly reduce the noise, effectively protect the hearing of artificial, reduce the harmfulness of noise. DRAWINGS
[0020] In order to make the technical scheme of the embodiments of the utility model clearer, the following will briefly introduce the drawings needed to be used in the embodiment description, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creative labor.
[0021] Figure 1 It is the overall structure schematic diagram of a small low-noise self-suction gear pump of the utility model.
[0022] Figure 2 It is the sectional structure schematic diagram of a small low-noise self-suction gear pump of the utility model.
[0023] Figure 3 It is the filter assembly structure schematic diagram of a small low-noise self-suction gear pump of the utility model.
[0024] Figure 4 It is the filter assembly sectional structure schematic diagram of a small low-noise self-suction gear pump of the utility model.
[0025] Figure 5 It is another sectional structure schematic diagram of a small low-noise self-suction gear pump of the utility model.
[0026] Figure 6 It is the local enlarged structure schematic diagram of a small low-noise self-suction gear pump of the utility model.
[0027] DRAWINGS
[0028] 1, pump body; 2, motor; 3, first gear; 4, second gear; 5, liquid inlet channel; 6, liquid outlet channel; 7, filter assembly; 71, filter box; 72, filter screen; 73, collection chamber; 74, collection frame; 75, filtrate screen; 76, cover plate; 77, screw; 78, input port; 8, lubrication assembly; 81, oil storage tank; 82, compression channel; 83, piston; 84, sliding rod; 85, spring; 86, oil supplement channel; 9, sound insulation assembly; 91, first sound insulation plate; 92, first shell; 93, second sound insulation plate; 94, second shell. DETAILED DESCRIPTION
[0029] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.
[0030] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present application are only used to explain the relative positional relationship, movement condition, etc. between components in a certain posture (as shown in the drawings), and if the certain posture changes, the directional indications will also change accordingly.
[0031] Meanwhile, "and / or" or "and / or" appearing throughout the text means that it includes three schemes. Taking "A and / or B" as an example, it includes A scheme, or B scheme, or A and B schemes that meet at the same time.
[0032] In addition, the description of "first", "second" and the like in the present application is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include at least one of the features. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, and is not within the scope of protection required by the present application.
[0033] For example, Figure 1 and Figure 6As shown in the drawings, the embodiment provides a small low-noise self-suction gear pump, comprising a pump body 1, a motor 2 arranged on one side of the pump body 1, a first gear 3 drivingly connected to an output end of the motor 2, a second gear 4 arranged inside the pump body 1, the first gear 3 corresponding to the second gear 4, a liquid inlet channel 5 arranged at one end of the pump body 1, a liquid outlet channel 6 arranged at the other end of the pump body 1, a filter assembly 7 arranged at one end of the liquid inlet channel 5, and a sound insulation assembly 9 arranged outside the pump body 1, and a lubricating assembly 8 arranged on the sound insulation assembly 9.
[0034] The filter assembly 7 comprises a filter box 71, one side of the filter box 71 being through the liquid inlet channel 5, a filter screen 72 being arranged inside the filter box 71, the filter screen 72 being arranged obliquely, a collection chamber 73 being arranged at one end of the filter box 71, a collection frame 74 being arranged inside the collection chamber 73, a filter screen 75 being arranged at a through portion of the collection chamber 73 and the filter box 71, a cover plate 76 being arranged on the collection frame 74, and screws 77 being symmetrically arranged on the cover plate 76. The filter screen 72 in the filter box 71 filters the liquid entering the gear pump, preventing impurities from entering the gear pump. The collection frame 74 collects the impurities, facilitating subsequent cleaning.
[0035] The filter box 71 is provided with an input port 78 on the other side, and the collection frame 74 is slidingly connected with the collection chamber 73. The collection frame 74 and the collection chamber 73 are slidingly arranged, facilitating the collection frame 74 to be pulled out for cleaning.
[0036] As shown in the drawings, Figure 2 and Figure 5 As shown in the drawings, the sound insulation assembly 9 comprises a first sound insulation plate 91 arranged outside the pump body 1, a first housing 92 arranged outside the first sound insulation plate 91, a second sound insulation plate 93 arranged outside the first housing 92, and a second housing 94 arranged outside the second sound insulation plate 93. The first sound insulation plate 91 and the second sound insulation plate 93 reduce the noise of the gear pump, greatly reducing the noise and effectively protecting the hearing of workers.
[0037] The output shaft of the motor 2 penetrates the first housing 92 and the second housing 94, and the output shaft of the motor 2 is installed in clearance fit with the first housing 92 and the second housing 94, reducing the rotating resistance of the output shaft of the motor 2.
[0038] As shown in the drawings, Figure 5 and Figure 6As shown, the lubricating assembly 8 comprises an oil storage tank 81 arranged between the first housing 92 and the second housing 94, the top of the oil storage tank 81 is provided with a compression channel 82, the inside of the compression channel 82 is provided with a piston 83, the top of the piston 83 is provided with a sliding rod 84, the sliding rod 84 extends to the outside of the second housing 94, the outer surface of the sliding rod 84 is sleeved with a spring 85, the spring 85 is arranged between the piston 83 and the second housing 94, the piston 83 is pushed to move downward along the compression channel 82 by the sliding rod 84, the lubricating oil in the oil storage tank 81 is squeezed onto the output shaft by the piston 83, and the output shaft is lubricated, so that the bearing seat and the motor output shaft are lubricated.
[0039] The second housing 94 is provided with an oil supplement channel 86, the oil supplement channel 86 is communicated with the compression channel 82, and the oil supplement channel 86 is used for supplementing the lubricating oil in the oil storage tank 81 in time.
[0040] In use, the motor 2 drives the first gear 3 to rotate, the first gear 3 drives the second gear 4 to rotate, and the first gear 3 and the second gear 4 drive the liquid in the liquid inlet channel 5 to the other side of the pump body and then discharge from the liquid outlet channel 6, when the liquid enters the liquid inlet channel 5, the liquid enters the filter box 71 from the input port 78, and the impurities in the liquid are filtered through the filter screen 72, preventing impurities from entering the inside of the gear pump, which not only reduces the noise of the gear pump, but also slows down the wear of the gears inside the pump body, increases the service life of the gear pump, and the impurities filtered along the filter screen 72 fall into the collection frame 74, and the liquid entering the collection chamber 73 is further filtered through the filter screen at the bottom of the collection frame 74, and the filtered liquid flows back to the filter box 71 through the filter liquid screen 75, and then the screws 77 are unscrewed, the collection frame 74 is pulled out of the collection chamber 73, and then the impurities in the collection frame 74 are cleaned, the gear pump is noise-reduced through the first sound insulation plate 91 and the second sound insulation plate 93, the noise is greatly reduced through the secondary noise reduction treatment, the hearing of the workers is effectively protected, and the harmfulness of the noise is reduced, then the workers regularly press the sliding rod 84, the sliding rod 84 pushes the piston 83 to move downward along the compression channel 82, and the spring 85 is stretched to generate tension, the piston 83 is driven back to the initial position by the tension of the spring 85, then the lubricating oil in the oil storage tank 81 is squeezed onto the output shaft by the piston 83, the output shaft is lubricated, the bearing seat and the motor output shaft are lubricated, the noise is reduced when the output shaft rotates, and the rotation is not affected.
[0041] It should be understood that the use of these embodiments is by way of illustration only and is not intended to limit the scope of the present application. In addition, it should also be understood that, after reading the technical content of the present application, those skilled in the art can make various modifications, modifications and / or variations to the present application, and all of these equivalent forms also fall within the protection scope defined by the claims attached to the present application.
Claims
1. A small, low-noise, self-priming gear pump, comprising a pump body (1), a motor (2) provided on one side of the pump body (1), the output end of the motor (2) being driven and connected to a first gear (3), a second gear (4) provided inside the pump body (1), the first gear (3) and the second gear (4) meshing correspondingly, a liquid inlet channel (5) provided at one end of the pump body (1), and a liquid outlet channel (6) provided at the other end of the pump body (1), characterized in that: The inlet channel (5) is provided with a filter assembly (7) at one end, the pump body (1) is provided with a sound insulation assembly (9) outside, the sound insulation assembly (9) is provided with a lubricating assembly (8). The filter assembly (7) comprises a filter box (71), one side of the filter box (71) is through the inlet channel (5), the filter box (71) is provided with a filter screen (72) inside, the filter screen (72) is arranged obliquely, one end of the filter box (71) is provided with a collection chamber (73), the collection chamber (73) is provided with a collection frame (74) inside, the collection chamber (73) is through the filter box (71) and is provided with a filtrate screen (75), the collection frame (74) is provided with a cover plate (76) on the top, the cover plate (76) is provided with a screw (77) symmetrically.
2. A small low-noise self-priming gear pump according to claim 1, characterized in that: The filter box (71) is provided with an input port (78) at the other side, and the collection frame (74) is slidably connected with the collection chamber (73).
3. A small low noise self-priming gear pump as claimed in claim 1, wherein: The sound insulation assembly (9) comprises a first sound insulation plate (91), the first sound insulation plate (91) is arranged outside the pump body (1), the first sound insulation plate (91) is provided with a first housing (92) outside, the first housing (92) is provided with a second sound insulation plate (93) outside, and the second sound insulation plate (93) is provided with a second housing (94) outside.
4. A small low noise self-priming gear pump according to claim 3, characterized in that: The motor (2) output shaft penetrates the first housing (92) and the second housing (94).
5. A small low noise self-priming gear pump as claimed in claim 4, wherein: The lubricating assembly (8) comprises an oil storage tank (81), the oil storage tank (81) is arranged between the first housing (92) and the second housing (94), the oil storage tank (81) is provided with a compression channel (82) on the top, the compression channel (82) is provided with a piston (83) inside, the piston (83) is provided with a sliding rod (84) on the top, the sliding rod (84) extends to the outside of the second housing (94), the sliding rod (84) is provided with a spring (85) on the outer surface, and the spring (85) is arranged between the piston (83) and the second housing (94).
6. A small low noise self-priming gear pump according to claim 5, characterized in that: One side of the second housing (94) is provided with an oil supplement channel (86), and the oil supplement channel (86) and the compression channel (82) are in communication with each other.