Double-screw pump machine with noise reduction function

Abstract

The utility model relates to the technical field of double-screw pumps, in particular to a double-screw pump with a noise reduction function, which comprises a casing positioned at the outermost part and a noise reduction component embedded in the inner wall of the casing, the machine shell comprises a feeding bin, a discharging bin connected to an opening in the front portion of the feeding bin in a sealed mode, a partition bin installed at the tail of the feeding bin in a matched mode and a machine bin fixed to the other side of the partition bin. The noise reduction assembly comprises corrugated reflection strips, guide vanes arranged on the straight face of the inner wall of the feeding bin, noise reduction exhaust holes formed in the side face of the partition bin and micropore noise reduction plates embedded in the machine bin and the inner wall of the tailstock. By adopting the design of the corrugated reflection strips, the guide vanes, the silencing exhaust holes, the micropore silencing plates and the like, the noise pollution of the pump machine in the operation process is effectively reduced; and meanwhile, the design of the guide vanes can better guide the flowing direction of the fluid, the turbulence phenomenon of the fluid in the conveying process is reduced, and the fluid can more stably pass through the pump machine.

Description

Technical Field

[0001] The utility model relates to the technical field of twin-screw pumps, in particular to a twin-screw pump with a noise reduction function. Background Art

[0002] With the continuous development of industrial production, the market demand for pumps is also changing. Modern industrial production not only pursues efficiency, but also pays more and more attention to environmental protection and employee health. Therefore, the market needs a pump that can not only efficiently complete fluid transportation tasks, but also reduce noise pollution, and is easy to maintain and has higher safety.

[0003] Traditional twin-screw pumps generate a lot of noise during operation, which is mainly caused by the turbulence formed when the fluid flows at high speed in the pump and the vibration of the mechanical parts during operation. High noise not only affects the working environment, but may also cause damage to the hearing health of operators; due to design limitations, traditional pumps may encounter problems of low efficiency or pumping difficulties when conveying certain viscous media or media containing solid particles. The irregular movement of the fluid in the pump will cause energy loss, thereby reducing the working efficiency of the pump.

[0004] To this end, the utility model proposes a twin-screw pump with a noise reduction function, aiming to provide a twin-screw pump that is more efficient, quieter, safer and easier to maintain, so as to solve the above-mentioned problems. Utility Model Content

[0005] The utility model aims to provide a twin-screw pump with a noise reduction function to solve the problem of high operating noise of the existing twin-screw pumps mentioned in the background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a twin-screw pump with noise reduction function, comprising a casing located at the outermost part, a noise reduction component embedded in the inner wall of the casing, and a twin-screw component loaded inside the casing;

[0007] The housing includes a feeding bin, a discharge bin sealedly connected to the front opening of the feeding bin, a partition bin adapted to be installed at the rear of the feeding bin, a machine bin fixed to the other side of the partition bin, a tail seat fixed to the rear of the machine bin, and a buffer support plate fixed to the bottom of the machine bin;

[0008] The noise reduction component includes corrugated reflective strips equidistantly and continuously arranged on the arc surface of the inner wall of the feeding bin, guide vanes arranged on the straight surface of the inner wall of the feeding bin, silencer exhaust holes opened on the side of the partition bin, and microporous silencer plates embedded in the inner walls of the machine bin and the tailstock;

[0009] The twin screw assembly includes screw 1 and screw 2 movably and alternately arranged inside the feeding bin, a sleeve connecting screw 1 and screw 2, shaft rod 1 and shaft rod 2 connected to the sleeve via an intermediate shaft, a driving gear sleeved on the outside of shaft rod 1, and a transmission gear sleeved on the outside of shaft rod 2.

[0010] Preferably, the feeding bin is communicated with the unloading bin, a feeding port is arranged at a middle position on an upper side of the feeding bin, and a discharging port is arranged at a middle position at a front end of the unloading bin.

[0011] Preferably, a transmission shaft is passed through the tailstock, and a controller is installed on the upper side of the tailstock.

[0012] Preferably, one end of the transmission shaft is connected to a coupling, and the other end thereof is connected to an external rotation drive, and the coupling is located inside the tailstock.

[0013] Preferably, the driving gear is meshed with the transmission gear, and the driving gear and the transmission gear are located at the rear of the engine room, and the shaft rod 1 and the shaft rod 2 are movably installed at the rear of the engine room via positioning wheels.

[0014] Preferably, a partition plate is fixed to the edge of the partition chamber, and a bearing seat is embedded and fixed to the edge of the partition plate, and the bearing seat cooperates with the intermediate shaft.

[0015] Preferably, the guide blades are in the direction of the fluid conveying of screw one and screw two, and the corrugated reflection strips surround the circumference of screw one and screw two.

[0016] Preferably, the microporous sound-absorbing plate is provided with a plurality of micropores inside, and the pore size is between 0.1 and 1 mm.

[0017] A method for using a twin-screw pump with a noise reduction function, comprising the following steps:

[0018] a) According to the use requirements, the position of the buffer support plate is fixed. The buffer support plate is used to fix the twin-screw pump and realize the vibration buffering of the whole machine;

[0019] b) Connect the conveying fluid pipeline to the feed port and the discharge port respectively;

[0020] c) Check whether all connections are tight, ensure there is no possibility of leakage, and check whether all electrical connections are correct;

[0021] d) Start the external rotary drive, drive the transmission shaft to rotate through the coupling, and then rotate the driving gear, and drive the transmission gear and the second shaft connected to it to rotate together through the meshing action of the gears;

[0022] e) Observe the operating parameters displayed on the controller to ensure that the pump is in normal working condition and adjust the controller settings if necessary to optimize pump performance;

[0023] f) During the operation of the pump, the guide vanes and corrugated reflective strips are used to guide the fluid flow and reduce turbulence, while the microporous silencer plates and silencer exhaust holes are used to reduce noise;

[0024] g) Check the wear of the partition plate and bearing seat regularly, and replace or maintain them if necessary to ensure the long-term stable operation of the pump;

[0025] h) After the pump is out of use, turn off the external rotary drive, disconnect the power supply, and perform necessary cleaning and maintenance work in accordance with the maintenance manual to ensure that the pump is in good working condition;

[0026] i) For pumps that are not used for a long time, the fluid in the pump body should be drained and appropriate anti-corrosion measures should be taken to prevent rust or corrosion of internal parts.

[0027] Compared with the prior art, the beneficial effects of the utility model are:

[0028] 1. By setting corrugated reflective strips on the inner wall of the feeding bin, sound waves can be effectively reflected and dispersed to reduce the spread of noise. The design of the guide vane helps to guide the fluid to flow smoothly and reduce the noise caused by turbulence. The microporous muffler absorbs sound waves through its internal microporous structure, further reducing the noise level inside the pump. The muffler exhaust hole allows the internal pressure to be released, and also plays a certain role in sound absorption. The above comprehensive noise reduction measures effectively control the noise generated by the pump during operation;

[0029] 2. By optimizing the design of the screw assembly, the material can be smoothly transferred between screw one and screw two, reducing the energy loss caused by fluid turbulence. The arrangement of the guide vanes further improves the fluidity of the fluid, allowing the pump to complete the material conveying task with higher efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0031] Figure 2 This is a schematic diagram of the installation of the microporous sound-absorbing board in the utility model;

[0032] Figure 3 It is a schematic diagram of the position of the transmission shaft in the utility model;

[0033] Figure 4 This is a schematic diagram of the internal structure of the feeding bin in the utility model;

[0034] Figure 5This is a schematic diagram of the internal structure of the partition compartment in the utility model;

[0035] Figure 6 This is a schematic diagram of the cooperation between screw rod 1 and screw rod 2 in the utility model;

[0036] Figure 7 It is a schematic diagram of the cooperation between the driving gear and the transmission gear in the utility model.

[0037] In the figure: 100, casing; 101, feeding bin; 102, unloading bin; 103, discharge port; 104, feed port; 105, partition bin; 106, machine bin; 107, tailstock; 108, controller; 109, buffer support plate; 200, twin-screw assembly; 201, transmission shaft; 202, coupling; 203, driving gear; 204, transmission gear; 205, shaft rod two; 206, shaft rod one; 207, positioning wheel; 208, bushing; 209, screw rod one; 210, screw rod two; 211, partition plate; 212, bearing seat; 300, noise reduction assembly; 301, microporous silencer plate; 302, corrugated reflection strip; 303, guide blade; 304, silencer exhaust hole. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the implementation regulations described are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0039] Example

[0040] See also Figure 1-7, as shown in the figure: This embodiment is a preferred implementation of the technical solution, a twin-screw pump with noise reduction function, including a casing 100 located at the outermost part, a noise reduction component 300 embedded in the inner wall of the casing 100, and a twin-screw component 200 loaded inside the casing 100; the casing 100 includes a feeding bin 101, a discharge bin 102 sealed and connected to the front opening of the feeding bin 101, a partition bin 105 adapted to be installed at the tail of the feeding bin 101, a bin 106 fixed to the other side of the partition bin 105, a tail seat 107 fixed to the tail of the bin 106, and a buffer support plate 109 fixed to the bottom of the bin 106; the noise reduction component 300 includes equidistant and continuous arrangements A corrugated reflective strip 302 on the curved surface of the inner wall of the feeding bin 101, a guide blade 303 arranged on the straight surface of the inner wall of the feeding bin 101, a silencer exhaust hole 304 opened on the side of the partition bin 105, and a microporous silencer plate 301 embedded in the inner wall of the machine bin 106 and the tailstock 107; the twin-screw assembly 200 includes screw 1 209 and screw 2 210 movably and alternately arranged inside the feeding bin 101, a sleeve 208 connecting screw 1 209 and screw 2 210, shaft 1 206 and shaft 2 205 connected to the sleeve 208 via an intermediate shaft, a driving gear 203 sleeved on the outside of shaft 1 206, and a transmission gear 204 sleeved on the outside of shaft 2 205.

[0041] The feeding bin 101 is connected to the unloading bin 102, a feeding port 104 is provided at the middle position of the upper side of the feeding bin 101, and a discharging port 103 is provided at the middle position of the front end of the unloading bin 102; a transmission shaft 201 is passed through the tailstock 107, and a controller 108 is installed on the upper side of the tailstock 107; a coupling 202 is connected to one end of the transmission shaft 201, and the other end is connected to an external rotation drive, and the coupling 202 is located inside the tailstock 107;

[0042] The driving gear 203 is meshed with the transmission gear 204, and the driving gear 203 and the transmission gear 204 are located at the rear of the machine chamber 106, and the shaft rod 1 206 and the shaft rod 205 are movably installed at the rear of the machine chamber 106 via the positioning wheel 207; a partition plate 211 is fixed to the edge of the partition chamber 105, and a bearing seat 212 is embedded and fixed to the edge of the partition plate 211, and the bearing seat 212 is matched with the intermediate shaft; the guide vane 303 is in the direction of the fluid conveying of the screw rod 1 209 and the screw rod 210, and the corrugated reflection strip 302 surrounds the sides of the screw rod 1 209 and the screw rod 210;

[0043] The microporous sound-absorbing plate 301 is provided with a plurality of micropores therein, and the pore size is between 0.1 and 1 mm.

[0044] The detailed description of the above technical solution is as follows:

[0045] In the casing 100, the feed bin 101 is the entrance area of ​​the pump, where the material enters the pump. The feed bin is provided with a feed port 104, through which the material enters; the material in the discharge bin 102 is transported by the screw assembly 200 and discharged from the discharge port 103 at the front end of the discharge bin; the partition bin 105 is located behind the feed bin, and is mainly used to isolate the feeding area and the driving area. The side of the partition bin 105 is provided with a silencer exhaust hole 304; the machine bin 106 is where the power part of the pump is located; the buffer support plate 109 is installed at the bottom of the machine bin 106, and is used to absorb the vibration generated when the pump is running and reduce the impact on the ground or other structures.

[0046] In the noise reduction component 300, the corrugated reflection strip 302 can reflect sound waves and reduce noise. The guide blade 303 helps guide the fluid to flow smoothly along the direction of the screw, reducing the turbulence of the fluid and thus reducing noise. The silencer exhaust hole 304 is arranged on the side of the partition chamber 105 to discharge the internal pressure and also helps to dissipate the sound. The microporous silencer plate 301 can absorb sound waves and further reduce the noise level.

[0047] In the twin-screw assembly 200, screw one 209 and screw two 210 are alternately arranged inside the feeding bin 101, and the materials are pushed forward and pass through the pump through their mutual meshing; the sleeve 208 connects screw one 209 and screw two 210 so that they can operate synchronously; shaft rod one 206 and shaft rod two 205 are connected to the sleeve 208 through an intermediate shaft, and drive the two screws respectively; the driving gear is connected to the transmission shaft 201 through the coupling 202, and the transmission gear is connected to shaft rod two 205, and power is transmitted through the meshing action of gears; the positioning wheel 207 is used to maintain the position of the shaft rods to ensure that they do not deviate from the set path during operation; the partition plate 211 is fixed to the edge of the partition bin 105, and a bearing seat 212 is embedded in it to support the intermediate shaft.

[0048] In addition, a method for using a twin-screw pump with a noise reduction function comprises the following steps:

[0049] a) According to the use requirements, the position of the buffer support plate 109 is fixed. The buffer support plate 109 is used to fix the twin-screw pump and realize the vibration buffering of the whole machine;

[0050] b) connecting the conveying fluid pipeline to the feed port 104 and the discharge port 103 respectively;

[0051] c) Check whether all connections are tight, ensure there is no possibility of leakage, and check whether all electrical connections are correct;

[0052] d) Start the external rotary drive, drive the transmission shaft 201 to rotate through the coupling 202, and then rotate the driving gear 203, and drive the transmission gear 204 and the shaft 205 connected thereto to rotate together through the meshing action of the gears;

[0053] e) Observe the operating parameters displayed by the controller 108 to ensure that the pump is in normal working condition, and adjust the settings of the controller 108 to optimize the pump performance if necessary;

[0054] f) During the operation of the pump, the guide vanes 303 and the corrugated reflective strips 302 are used to guide the flow of the fluid and reduce turbulence, while the microporous muffler plate 301 and the muffler exhaust holes 304 are used to reduce noise;

[0055] g) Regularly check the wear of the partition plate 211 and the bearing seat 212, and replace or maintain them if necessary to ensure long-term stable operation of the pump;

[0056] h) After the pump is out of use, turn off the external rotary drive, disconnect the power supply, and perform necessary cleaning and maintenance work in accordance with the maintenance manual to ensure that the pump is in good working condition;

[0057] i) For pumps that are not used for a long time, the fluid in the pump body should be drained and appropriate anti-corrosion measures should be taken to prevent rust or corrosion of internal parts.

[0058] The detailed explanation of the above usage is:

[0059] 1. First, according to the use environment and requirements of the pump, select a suitable position to fix the buffer support plate 109 to achieve the best shock absorption effect;

[0060] 2. Connect the feed port 104 to the material supply system, and the discharge port 103 to the material receiving system;

[0061] 3. Before starting the pump, carefully check all connections to ensure they are secure and leak-free;

[0062] Fourth, start the external rotary drive (usually an electric motor), drive the transmission shaft 201 to rotate through the coupling 202, and then transmit power to the screw through the gear set to start conveying materials;

[0063] 5. Monitor the working status of the pump, such as temperature, pressure, speed, etc., through the controller 108 to ensure that the pump operates under safe and efficient conditions;

[0064] 6. During the operation of the pump, the noise reduction components play a role, the guide vanes 303 and the corrugated reflective strips 302 reduce the fluid turbulence, while the microporous silencer plate 301 and the silencer exhaust holes 304 reduce the noise;

[0065] 8. Regularly check the wear of key components such as the partition plate 211 and the bearing seat 212, and replace or repair them in time to maintain the good operating condition of the pump;

[0066] 9. When the pump is no longer in use, first turn off the external rotary drive, then cut off the power supply, and clean and maintain the pump according to the requirements of the maintenance manual;

[0067] 10. If the pump needs to be idle for a long time, the residual fluid in the pump body should be drained and appropriate anti-corrosion measures should be taken to prevent rust or corrosion of internal parts.

[0068] The above content is a further detailed description of the utility model in combination with specific implementation methods. It cannot be determined that the specific implementation of the utility model is limited to these descriptions. For ordinary technicians in the technical field to which the utility model belongs, without departing from the concept of the utility model, they can also make some simple deductions or substitutions, which should be regarded as belonging to the scope of protection determined by the claims submitted for the utility model.

Claims

1. A twin-screw pump with noise reduction function, comprising a casing (100) located at the outermost part, a noise reduction component (300) embedded in the inner wall of the casing (100), and a twin-screw component (200) loaded inside the casing (100); characterized in that: The housing (100) comprises a feeding bin (101), a discharge bin (102) sealed and connected to the front opening of the feeding bin (101), a partition bin (105) adapted to be installed at the rear of the feeding bin (101), a machine bin (106) fixed to the other side of the partition bin (105), a tailstock (107) fixed to the rear of the machine bin (106), and a buffer support plate (109) fixed to the bottom of the machine bin (106); The noise reduction component (300) comprises corrugated reflection strips (302) equidistantly and continuously arranged on the curved surface of the inner wall of the feeding bin (101), guide vanes (303) arranged on the straight surface of the inner wall of the feeding bin (101), silencer exhaust holes (304) opened on the side of the partition bin (105), and microporous silencer plates (301) embedded in the inner walls of the machine bin (106) and the tailstock (107); The twin screw assembly (200) includes a screw rod 1 (209) and a screw rod 2 (210) movably and alternately arranged inside the feeding bin (101), a shaft sleeve (208) connecting the screw rod 1 (209) and the screw rod 2 (210), a shaft rod 1 (206) and a shaft rod 2 (205) connected to the shaft sleeve (208) via an intermediate shaft, a driving gear (203) sleeved on the outside of the shaft rod 1 (206), and a transmission gear (204) sleeved on the outside of the shaft rod 2 (205).

2. The twin-screw pump with noise reduction function according to claim 1, characterized in that: The feeding bin (101) is communicated with the unloading bin (102), a feeding port (104) is provided at the middle position of the upper side of the feeding bin (101), and a discharging port (103) is provided at the middle position of the front end of the unloading bin (102).

3. The twin-screw pump with noise reduction function according to claim 1, characterized in that: The tailstock (107) is provided with a transmission shaft (201), and a controller (108) is installed on the upper side of the tailstock (107).

4. The twin-screw pump with noise reduction function according to claim 3, characterized in that: One end of the transmission shaft (201) is connected to a coupling (202), and the other end is connected to an external rotation drive, and the coupling (202) is located inside the tailstock (107).

5. The twin-screw pump with noise reduction function according to claim 1, characterized in that: The driving gear (203) is meshed with the transmission gear (204), and the driving gear (203) and the transmission gear (204) are located at the rear of the machine cabin (106), and the shaft rod 1 (206) and the shaft rod 2 (205) are movably installed at the rear of the machine cabin (106) via a positioning wheel (207).

6. The twin-screw pump with noise reduction function according to claim 1, characterized in that: A partition plate (211) is fixed to the edge of the partition chamber (105), and a bearing seat (212) is embedded and fixed to the edge of the partition plate (211), and the bearing seat (212) is matched with the intermediate shaft.

7. The twin-screw pump with noise reduction function according to claim 1, characterized in that: The guide blades (303) are directed toward the direction in which the screw rod 1 (209) and the screw rod 2 (210) convey fluid, and the corrugated reflection strips (302) surround the circumference of the screw rod 1 (209) and the screw rod 2 (210).

8. The twin-screw pump with noise reduction function according to claim 1, characterized in that: The microporous sound-absorbing plate (301) is provided with a plurality of micropores inside, and the pore diameters are between 0.1 and 1 mm.

Images