A vibrating feeder

Abstract

The application belongs to the technical field of material conveying, and particularly relates to a vibrating feeder, which comprises a working mass and a driving mass. The working mass comprises a conveying groove body for conveying materials. The driving mass comprises a base and a driver installed on the base. A moving part of the driver is fixedly connected to the conveying groove body to drive the conveying groove body to vibrate. A plurality of elastic components are arranged between the base and the conveying groove body. A plurality of counterweight masses for eliminating vibration force of the base are arranged on the base. The application effectively improves the vibration reduction effect through the vibration reduction mode of the counterweight masses, and the counterweight masses are not prone to fatigue and deformation, thereby ensuring normal work and service life of the vibrating feeder.

Description

Technical Field

[0001] This invention belongs to the field of material conveying technology, specifically a vibrating feeder. Background Technology

[0002] A vibrating feeder is a device that can uniformly, regularly and continuously feed block or granular materials from a storage bin to a receiving device. It is widely used in crushing and screening equipment in industries such as metallurgy, coal mining, mineral processing, building materials, chemicals, and abrasives.

[0003] Existing vibrating feeders are generally dual-mass structures, consisting of a working mass and a driving mass. The driver is mounted on the driving mass and is used to drive the working mass to vibrate. The driver is typically a vibrating motor or an electromagnet. The working mass and the driving mass are connected by an elastic component, and the driving mass is connected to the base via a vibration damping device. The vibration damping device in a dual-mass vibrating feeder is usually a rubber damper, used to eliminate the vibration force transmitted from the driving mass to the base, thereby reducing the base's vibration. However, this type of damping is prone to fatigue and deformation, leading to inconsistent vibration patterns. This not only affects normal operation but also significantly shortens the equipment's lifespan. Furthermore, eliminating the vibration force transmitted to the base through the damping device is not very effective, and it still generates considerable noise and vibration. Its application is also limited, only suitable for conveying materials with small amplitudes. If large-amplitude materials are conveyed, it will cause significant damage to the damping device, severely impacting its lifespan. Summary of the Invention

[0004] To address the problems mentioned above, this invention provides a vibrating feeder that effectively improves vibration reduction by using a counterweight, and the counterweight is less prone to fatigue and deformation, thus ensuring the normal operation and service life of the vibrating feeder.

[0005] The present invention provides a vibrating feeder, including a working mass and a driving mass. The working mass includes a conveying trough for conveying materials. The driving mass includes a base and a driver mounted on the base. The moving part of the driver is fixedly connected to the conveying trough to drive the conveying trough to vibrate. Multiple sets of elastic components are arranged between the base and the conveying trough. Multiple counterweights for eliminating the vibration force of the base are arranged on the base.

[0006] By adopting the above technical solution, when the vibrating feeder is working, the driver directly drives the conveying trough to vibrate, so as to realize the vibratory conveying of materials. The vibration of the conveying trough is transmitted to the base through the elastic component. The base is equipped with a counterweight that can eliminate the vibration force of the base. The counterweight cancels out the vibration of the conveying trough on the base, thereby realizing the vibration reduction of the base. The vibration reduction method of using the counterweight effectively improves the vibration reduction effect. Moreover, the counterweight is not prone to fatigue and deformation, ensuring the normal operation and service life of the vibrating feeder.

[0007] Furthermore, the counterweight includes a mounting rod connected to the base, a fixing block fixedly connected to the mounting rod, two guide posts fixedly connected to the fixing block, a limit plate fixedly connected to the end of the guide post away from the fixing block, a counterweight slidably connected to the guide post, and the counterweight slides between the fixing block and the limit plate along the length of the guide post. Each guide post is fitted with two buffer springs, the two buffer springs are located on both sides of the counterweight, one buffer spring abuts between the fixing block and the counterweight, and the other buffer spring abuts between the limit plate and the counterweight.

[0008] By adopting the above technical solution, after the base is vibrated by the conveying trough, the base transmits the vibration to the counterweight through the mounting rod, fixing block, guide column, and limiting plate. The counterweight swings after being vibrated, and the counterweight repeatedly squeezes the buffer springs on both sides to generate a reverse vibration force. This reverse vibration force is then transmitted to the base through the limiting plate, guide column, fixing block, and mounting rod. Therefore, the base is subjected to two driving forces: one is the vibration force transmitted from the conveying trough through the elastic component, and the other is the vibration force transmitted from the counterweight through the buffer spring. Since the driving force of the driver changes periodically and the transmission of force takes time, the two driving forces on the base are opposite. Vibration reduction can be achieved simply by ensuring that the values ​​of the two forces are equal.

[0009] Furthermore, both ends of the mounting rod are fixedly connected to fixing plates, which can be detachably installed on the base by fixing bolts.

[0010] By adopting the above technical solution, the counterweight can be detachably installed on the base by fixing bolts, which facilitates the replacement of the counterweight in the later stage, so as to meet the material conveying work under different working conditions of the vibrating feeder.

[0011] Furthermore, let the mass of the working mass be... acceleration is The amplitude is The frequency is The driving force of the working mass on the driving mass is The mass of the counterweight is acceleration is The amplitude is The frequency is The driving force of the counterweight on the driving mass is ;

[0012] The driving forces of the working mass and the counterweight mass are as follows:

[0013]

[0014] make The mass of the counterweight is:

[0015]

[0016] The net force on the driving mass is zero.

[0017] By adopting the above technical solution, the mass of the working mass is improved. ,amplitude and frequency and the amplitude of the counterweight and frequency These parameters are set according to the material conveying requirements and the overall design requirements of the vibrating feeder. Therefore, the mass of the counterweight can be calculated based on these parameters. At this time, the net force on the driving mass is zero, which realizes vibration reduction. In other words, the vibration reduction effect can be achieved by matching the mass of the corresponding counterweight according to the design requirements. Moreover, the application scenarios of the vibrating feeder are not limited. When conveying materials with large amplitude, it is only necessary to replace the counterweight with a matching mass.

[0018] Furthermore, the elastic component includes two fixing rods. One fixing rod is fixedly connected to the base, and the other fixing rod is fixedly connected to the conveying trough. Each fixing rod is fixedly connected to a pressure block, and a leaf spring is provided between the two pressure blocks. One end of the leaf spring is installed on the conveying trough through the pressure block and the fixing rod, and the other end of the leaf spring is also installed on the base through the pressure block and the fixing rod.

[0019] By adopting the above technical solution and selecting leaf springs as the elastic deformation component in the elastic assembly, the load-bearing capacity of leaf springs is stronger, and the load-bearing capacity can be improved by stacking leaf springs.

[0020] Furthermore, the driver includes two U-shaped electromagnets, which are arranged opposite each other and connected in parallel. Each electromagnet has two coils wound on it, which are connected in series. Two armatures are arranged between the two electromagnets. A fixed base is fixedly connected to the bottom of the armature, and a connecting plate is fixedly connected to the top of the armature. The connecting plate is fixedly connected to the bottom of the conveying trough. The two armatures are fixed between the fixed base and the connecting plate. A certain gap is left between the electromagnets and the armatures. Each electromagnet is covered with a shell. The electromagnet and the coil are fixed inside the shell. The two shells are arranged in a mounting frame. A mounting plate is fixedly connected to the bottom of the mounting frame and is fixedly connected to the base.

[0021] By adopting the above technical solution, when the coil is energized, the coils on the same side of the two electromagnets generate magnetic fields with the same polarity. The two electromagnets and the armature form an induced current, and the current generates an Ampere force in the magnetic field. Since the electromagnets are fixed, the armature moves under the force. Because the coil is energized by alternating current, the armature produces periodic opposite movements in the periodic changes of the current, thereby forming a reciprocating motion, which in turn drives the conveying trough to vibrate.

[0022] Furthermore, the outer casing is movably mounted inside the mounting frame, and the outer casing and the mounting frame are connected together by multiple adjusting bolts, with several pads sandwiched between the outer casing and the mounting frame.

[0023] By adopting the above technical solution, the position of the housing can be adjusted by adjusting the bolts, which means that the gap distance between the electromagnet and the armature can be adjusted. When the driving requirements change, such as when the voltage increases, if the gap distance between the electromagnet and the armature is too small, it will cause the electromagnet and the armature to collide, damaging the driver. The adjustable gap distance between the electromagnet and the armature can prevent this phenomenon from occurring. The pad is sandwiched between the housing and the mounting bracket, and different numbers of pads can be inserted according to the position of the housing, thereby ensuring the accuracy and stability of the housing position.

[0024] Furthermore, multiple ribs are fixedly connected between the mounting bracket and the mounting plate.

[0025] By adopting the above technical solution, the rib plate can increase the connection stability and support strength between the mounting bracket and the mounting plate, thereby improving the installation stability of the driver.

[0026] Furthermore, multiple pairs of support legs are fixedly installed at the bottom of the base.

[0027] By adopting the above technical solution, the support legs can raise the vibrating feeder to a certain height, and support legs of different lengths can meet the material conveying needs at different heights.

[0028] Furthermore, several crossbeams are fixedly connected between each pair of support legs.

[0029] By adopting the above technical solution, the crossbeam can increase the support stability of the support leg.

[0030] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0031] (1) When the vibrating feeder is working, the driver directly drives the conveying trough to vibrate, so as to realize the vibration conveying of materials. The vibration of the conveying trough is transmitted to the base through the elastic component. The base is equipped with a counterweight that can eliminate the vibration force of the base. The counterweight cancels out the vibration of the conveying trough on the base, thereby realizing the vibration reduction of the base. The vibration reduction method of the counterweight effectively improves the vibration reduction effect. Furthermore, the counterweight is not prone to fatigue and deformation, ensuring the normal operation and service life of the vibrating feeder.

[0032] (2) The mass of the working mass ,amplitude and frequency and the amplitude of the counterweight and frequency These parameters are set according to the material conveying requirements and the overall design requirements of the vibrating feeder. Therefore, the mass of the counterweight can be calculated based on these parameters. At this time, the net force on the driving mass is zero, which realizes vibration reduction. In other words, the vibration reduction effect can be achieved by matching the mass of the corresponding counterweight according to the design requirements. Moreover, the application scenarios of the vibrating feeder are not limited. When conveying materials with large amplitude, it is only necessary to replace the counterweight with a matching mass.

[0033] (3) The position of the housing can be adjusted by adjusting the bolts, that is, the gap between the electromagnet and the armature can be adjusted. When the driving requirements change, such as the voltage increases, the gap between the electromagnet and the armature will be too small, which will cause the electromagnet and the armature to collide and damage the driver. The adjustable gap between the electromagnet and the armature can prevent this phenomenon from occurring. The pad is sandwiched between the housing and the mounting bracket, and different numbers of pads can be inserted according to the position of the housing, thereby ensuring the accuracy and stability of the housing position. Attached Figure Description

[0034] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0035] Figure 1 This is a schematic diagram of the overall structure of the vibrating feeder;

[0036] Figure 2 This is a schematic diagram of the structure of the counterweight.

[0037] Figure 3 This is a schematic diagram of the structure of the elastic component;

[0038] Figure 4 Schematic diagram of the driver structure Figure 1 ;

[0039] Figure 5 Schematic diagram of the driver structure Figure 2 ;

[0040] Explanation of reference numerals in the attached drawings: 1. Conveying trough; 2. Base; 3. Driver; 30. Electromagnet; 31. Coil; 32. Armature; 33. Fixing seat; 34. Connecting plate; 35. Housing; 36. Mounting bracket; 37. Mounting plate; 38. Adjusting bolt; 39. Pad; 4. Elastic component; 40. Fixing rod; 41. Pressure block; 42. Leaf spring; 5. Counterweight; 50. Mounting rod; 51. Fixing block; 52. Guide column; 53. Limiting plate; 54. Counterweight; 55. Buffer spring; 56. Fixing plate; 57. Fixing bolt; 6. Rib plate; 7. Support leg; 8. Crossbeam. Detailed Implementation

[0041] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present invention.

[0042] The following is in conjunction with the appendix Figure 1 To be continued Figure 5 The invention is described in detail with specific embodiments.

[0043] Reference Figures 1-5 The present invention provides a vibrating feeder, including a working mass and a driving mass located below the working mass. The working mass includes a conveying trough 1 for conveying materials. The driving mass includes a base 2 and a driver 3 mounted on the base 2. The moving part of the driver 3 is fixedly connected to the conveying trough 1 to drive the conveying trough 1 to vibrate. Multiple sets of elastic components 4 are arranged between the base 2 and the conveying trough 1. Multiple counterweights 5 are arranged on the base 2 to eliminate the vibration force of the base 2.

[0044] When the vibrating feeder is working, the driver 3 directly drives the conveying trough 1 to vibrate, so as to realize the vibration conveying of materials. The vibration of the conveying trough 1 is transmitted to the base 2 through the elastic component 4. The base 2 is provided with a counterweight 5 that can eliminate the vibration force of the base 2. The counterweight 5 cancels out the vibration of the conveying trough 1 on the base 2, thereby realizing the vibration reduction of the base 2. The vibration reduction method of the counterweight 5 effectively improves the vibration reduction effect. Moreover, the counterweight 5 is not prone to fatigue and deformation, ensuring the normal operation and service life of the vibrating feeder.

[0045] Specifically, the counterweight 5 includes a mounting rod 50 connected to the base 2. A fixing block 51 is fixedly connected to the mounting rod 50. Two guide posts 52 are fixedly connected to the fixing block 51. A limit plate 53 is fixedly connected to one end of the guide post 52 away from the fixing block 51. A counterweight 54 is slidably connected to the guide post 52. The counterweight 54 slides between the fixing block 51 and the limit plate 53 along the length of the guide post 52. Two buffer springs 55 are sleeved on each guide post 52. The two buffer springs 55 are located on both sides of the counterweight 54. One buffer spring 55 abuts between the fixing block 51 and the counterweight 54, and the other buffer spring 55 abuts between the limit plate 53 and the counterweight 54.

[0046] After the base 2 is vibrated by the conveying trough 1, the base 2 transmits the vibration to the counterweight 54 through the mounting rod 50, fixing block 51, guide post 52 and limiting plate 53. The counterweight 54 swings after being vibrated, and the counterweight 54 will repeatedly squeeze the buffer springs 55 on both sides to generate a reverse vibration force. This reverse vibration force is then transmitted to the base 2 through the limiting plate 53, guide post 52, fixing block 51 and mounting rod 50. Therefore, the base 2 will be subjected to two driving forces. One is the vibration force transmitted from the conveying trough 1 through the elastic component 4, and the other is the vibration force transmitted from the counterweight 54 through the buffer spring 55. Since the driving force of the driver 3 is periodically changing and the transmission of force takes time, the two driving forces on the base 2 are opposite. As long as the values ​​of the two forces are equal, vibration reduction can be achieved. The specific design process will be given later.

[0047] Both ends of the mounting rod 50 are fixedly connected to the fixing plate 56. The fixing plate 56 can be detachably installed on the base 2 by fixing bolts 57. That is to say, the counterweight 5 can be detachably installed on the base 2 by fixing bolts 57, which facilitates the replacement of the counterweight 5 in the later stage to meet the material conveying work under different working conditions of the vibrating feeder.

[0048] As can be seen from the above analysis, the driving mass is subjected to two opposing driving forces: one is the driving force of the working mass on the driving mass, and the other is the driving force of the counterweight mass 5 on the driving mass. Ensuring that the values ​​of the two driving forces are equal can achieve vibration reduction.

[0049] Let the mass of the working mass be... acceleration is The amplitude is The frequency is The driving force of the working mass on the driving mass is The mass of counterweight 5 is acceleration is The amplitude is The frequency is The driving force of the counterweight 5 on the driving mass is ;

[0050] The driving forces of the working mass and the counterweight 5 are as follows:

[0051]

[0052] make The mass of counterweight 5 can be calculated as follows:

[0053]

[0054] Mass of working mass ,amplitude and frequency and the amplitude of counterweight 5 and frequency All parameters are set according to the material conveying requirements and the overall design requirements of the vibrating feeder. Therefore, the mass of the counterweight 5 can be calculated based on these parameters. At this time, the net force on the driving mass is zero, which realizes vibration reduction. In other words, the vibration reduction effect can be achieved by matching the mass of the corresponding counterweight 54 according to the design requirements. Moreover, the application scenarios of the vibrating feeder are not limited. When conveying materials with large amplitude, it is only necessary to replace the counterweight 54 with a matching mass.

[0055] The elastic component 4 includes two fixing rods 40. One fixing rod 40 is fixedly connected to the base 2, and the other fixing rod 40 is fixedly connected to the conveying trough 1. A pressure block 41 is fixedly connected to each of the two fixing rods 40. A leaf spring 42 is disposed between the two pressure blocks 41. One end of the leaf spring 42 is mounted on the conveying trough 1 via the pressure block 41 and the fixing rod 40, and the other end of the leaf spring 42 is also mounted on the base 2 via the pressure block 41 and the fixing rod 40. This invention selects the leaf spring 42 as the component in the elastic component 4 that undergoes elastic deformation. The leaf spring 42 has a stronger load-bearing capacity, and the load-bearing capacity can be increased by stacking leaf springs 42. This invention does not specifically limit the number of leaf springs 42.

[0056] The driver 3 includes two U-shaped electromagnets 30, which are arranged opposite each other and connected in parallel. Each electromagnet 30 has two coils 31 wound on it, and the two coils 31 are connected in series. Two armatures 32 are arranged between the two electromagnets 30. The bottom of the armature 32 is fixedly connected to a fixed base 33, and the top of the armature 32 is fixedly connected to a connecting plate 34. The connecting plate 34 is fixedly connected to the bottom of the conveying trough 1. The two armatures 32 are fixed between the fixed base 33 and the connecting plate 34. There is a certain gap between the electromagnets 30 and the armatures 32. Each electromagnet 30 is covered with a shell 35. The electromagnet 30 and the coils 31 are fixed inside the shell 35. The two shells 35 are arranged in a mounting bracket 36. The bottom of the mounting bracket 36 is fixedly connected to a mounting plate 37, which is fixedly connected to the base 2.

[0057] When coil 31 is energized, the coils 31 on the same side of the two electromagnets 30 generate magnetic fields with the same polarity. The two electromagnets 30 and armature 32 form an induced current. The current generates Ampere force in the magnetic field. Since the electromagnets 30 are fixed, the armature 32 moves under the force. Because the coil 31 is energized with alternating current, the armature 32 produces periodic opposite movements in the periodic changes of the current, thus forming reciprocating motion, which in turn drives the conveying trough 1 to vibrate.

[0058] The outer casing 35 is movably mounted within the mounting bracket 36. The outer casing 35 and the mounting bracket 36 are connected together by multiple adjusting bolts 38. Several pads 39 are sandwiched between the outer casing 35 and the mounting bracket 36. The position of the outer casing 35 can be adjusted by adjusting the adjusting bolts 38, which means that the gap distance between the electromagnet 30 and the armature 32 can be adjusted. When the driving requirements change, such as when the voltage increases, if the gap distance between the electromagnet 30 and the armature 32 is too small, it will cause the electromagnet 30 and the armature 32 to collide, damaging the driver 3. The adjustable gap distance between the electromagnet 30 and the armature 32 can prevent this phenomenon from occurring. The pads 39 are sandwiched between the outer casing 35 and the mounting bracket 36. Different numbers of pads 39 can be inserted according to the position of the outer casing 35, thereby ensuring the accuracy and stability of the position of the outer casing 35.

[0059] Multiple ribs 6 are fixedly connected between the mounting bracket 36 and the mounting plate 37. The ribs 6 can increase the connection stability and support strength between the mounting bracket 36 and the mounting plate 37, thereby improving the installation stability of the driver 3.

[0060] The bottom of the base 2 is fixedly installed with multiple pairs of support legs 7. The support legs 7 can raise the vibrating feeder to a certain height. The support legs 7 of different lengths can meet the material conveying needs of different heights.

[0061] Several crossbeams 8 are fixedly connected between each pair of support legs 7, and the crossbeams 8 can increase the support stability of the support legs 7.

[0062] The present invention has been further described above with reference to specific embodiments. However, it should be understood that the specific description herein should not be construed as limiting the nature and scope of the present invention. Various modifications made to the above embodiments by those skilled in the art after reading this specification are all within the scope of protection of the present invention.

Claims

1. A vibrating feeder, characterized in that, It includes a working mass and a driving mass. The working mass includes a conveying trough for conveying materials. The driving mass includes a base and a driver mounted on the base. The moving part of the driver is fixedly connected to the conveying trough to drive the conveying trough to vibrate. Multiple sets of elastic components are provided between the base and the conveying trough. Multiple counterweights for eliminating the vibration force of the base are provided on the base. The counterweight includes a mounting rod connected to the base, a fixing block fixedly connected to the mounting rod, two guide posts fixedly connected to the fixing block, a limit plate fixedly connected to the end of the guide post away from the fixing block, a counterweight slidably connected to the guide post, and the counterweight sliding between the fixing block and the limit plate along the length direction of the guide post. Each guide post is fitted with two buffer springs, the two buffer springs are located on both sides of the counterweight, one buffer spring abuts between the fixing block and the counterweight, and the other buffer spring abuts between the limit plate and the counterweight. Let the mass of the working mass be... acceleration is The amplitude is The frequency is The driving force of the working mass on the driving mass is The mass of the counterweight is acceleration is The amplitude is The frequency is The driving force of the counterweight on the driving mass is ; The driving forces of the working mass and the counterweight mass are as follows: make The mass of the counterweight is: The net force on the driving mass is zero.

2. The vibrating feeder according to claim 1, characterized in that, Both ends of the mounting rod are fixedly connected to fixing plates, and the fixing plates are detachably installed on the base by fixing bolts.

3. The vibrating feeder according to claim 1, characterized in that, The elastic component includes two fixing rods. One fixing rod is fixedly connected to the base, and the other fixing rod is fixedly connected to the conveying trough. Each fixing rod is fixedly connected to a pressure block. A leaf spring is provided between the two pressure blocks. One end of the leaf spring is mounted on the conveying trough through the pressure block and the fixing rod, and the other end of the leaf spring is also mounted on the base through the pressure block and the fixing rod.

4. The vibrating feeder according to claim 1, characterized in that, The driver includes two U-shaped electromagnets, which are arranged opposite each other and connected in parallel. Each electromagnet has two coils wound around it, and the two coils are connected in series. Two armatures are arranged between the two electromagnets. A fixed base is fixedly connected to the bottom of each armature, and a connecting plate is fixedly connected to the top of each armature. The connecting plate is fixedly connected to the bottom of the conveying trough. The two armatures are fixed between the fixed base and the connecting plate. A certain gap is left between the electromagnets and the armatures. Each electromagnet is covered with a shell, and the electromagnet and the coils are fixed inside the shell. The two shells are arranged in a mounting frame, and a mounting plate is fixedly connected to the bottom of the mounting frame. The mounting plate is fixedly connected to the base.

5. The vibrating feeder according to claim 4, characterized in that, The outer casing is movably disposed within the mounting frame, and the outer casing and the mounting frame are connected together by multiple adjusting bolts. Several pads are sandwiched between the outer casing and the mounting frame.

6. The vibrating feeder according to claim 4, characterized in that, Multiple ribs are fixedly connected between the mounting bracket and the mounting plate.

7. The vibrating feeder according to claim 1, characterized in that, The base has multiple pairs of support legs fixedly installed at its bottom.

8. The vibrating feeder according to claim 7, characterized in that, Several crossbeams are fixedly connected between each pair of support legs.

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