A vibrating feeder

Abstract

The present invention belongs to the technical field of material conveying, specifically a vibrating feeder, including a working mass and a driving mass, the working mass including a conveying trough for conveying materials, a fixed mounting seat for supporting the conveying trough is provided below the conveying trough, the conveying trough is installed on the fixed mounting seat through a plurality of shock absorbing parts, the driving mass includes a support seat and a driver installed on the support seat, the support seat is provided below the conveying trough, and a plurality of groups of elastic components are provided between the conveying trough and the support seat. The driver in the present invention is in a stationary state, does not vibrate with the conveying trough, will suffer less vibration damage, prolongs the service life, can also appropriately increase the amplitude of the conveying trough, and can reduce the mass of the counterweight on the fixed mounting seat, reducing the manufacturing cost and operating cost of the entire equipment.

Description

Technical Field

[0001] The invention belongs to the technical field of material transportation, in particular to a vibrating feeder. Background Art

[0002] Vibrating feeder is a kind of equipment which can feed block and granular materials from storage bin to receiving device evenly, regularly and continuously. It is widely used in crushing and screening equipment in metallurgy, coal mining, mineral processing, building materials, chemical industry, abrasive and other industries.

[0003] The existing vibrating feeder drivers are generally divided into motor drivers and electromagnetic drivers. Regardless of which driver is used, the driver is usually directly installed on the conveying trough body used to convey materials. Therefore, when the driver drives the conveying trough body to vibrate, the driver will also vibrate along with the conveying trough body.

[0004] Since the driver vibrates along with the conveying trough, the vibration of the conveying trough will also damage the driver during material conveying. In order to reduce the damage to the driver, a smaller amplitude has to be used, which limits the conveying speed of the feeder. Moreover, the driver and the conveying trough vibrate together, and the overall mass is relatively large. Therefore, it is necessary to increase the counterweight mass on the fixed mounting seat to offset the vibration force transmitted from the driver and the conveying trough. The counterweight mass also increases the manufacturing cost and operating cost of the entire equipment. Summary of the invention

[0005] In order to solve the above problems in the background technology, the present invention provides a vibrating feeder.

[0006] The present invention provides a vibrating feeder, comprising a working mass and a driving mass, the working mass comprising a conveying trough body for conveying materials, a fixed mounting seat for supporting the conveying trough body is provided below the conveying trough body, the conveying trough body is installed on the fixed mounting seat through a plurality of shock absorbing parts, the driving mass comprises a support seat and a driver installed on the support seat, the support seat is provided below the conveying trough body, and a plurality of groups of elastic components are provided between the conveying trough body and the support seat.

[0007] By adopting the above technical solution, the driver is in a stationary state and does not vibrate along with the conveying trough body. Therefore, it will be subject to less vibration damage and can extend its service life. At the same time, it can also appropriately increase the amplitude of the conveying trough body, so that it can be suitable for more application scenarios. Secondly, when the equipment is working, only the conveying trough body is vibrating. Therefore, only a small amount of counterweight mass needs to be added to the fixed mounting seat to offset the vibration force transmitted from the conveying trough body, that is, the counterweight mass is reduced, thereby reducing the manufacturing cost and operating cost of the entire equipment.

[0008] Furthermore, assuming the mass of the working mass is , the motion amplitude is expressed as The mass of the driving mass is , its motion displacement is The stiffness of the shock absorber is expressed as , the stiffness of the elastic component is , the amplitude of the driver is , the driving frequency is ;

[0009] The motion amplitudes of the working mass and the driving mass are as follows:

[0010]

[0011] make , the driving frequency of the driver is:

[0012]

[0013] The driving mass is in a stationary state during operation.

[0014] By adopting the above technical solution, the value of the driving frequency when the driving mass is in a stationary state can be obtained.

[0015] Furthermore, the elastic component includes two connecting plates, one connecting plate is fixedly connected to the conveying trough body, and the other connecting plate is fixedly connected to the support seat. Each connecting plate is provided with multiple pressure blocks, and a leaf spring is provided between two adjacent pressure blocks. One end of the leaf spring is installed on the conveying trough body through the pressure block and the connecting plate, and the other end of the leaf spring is also installed on the support seat through the pressure block and the connecting plate.

[0016] By adopting the above technical solution, a leaf spring is selected as the component that undergoes elastic deformation in the elastic component, the load-bearing capacity of the leaf spring is stronger, and the load-bearing capacity can be improved by stacking leaf springs.

[0017] Furthermore, one end of the support seat is fixedly connected to a driver connecting frame, and the driver is detachably mounted on the driver connecting frame by bolts.

[0018] By adopting the above technical solution, the later maintenance and replacement of the driver are facilitated.

[0019] Furthermore, the driver is installed at an angle, and a waist-shaped hole is opened on the driver connecting frame, and a bolt for installing the driver passes through the waist-shaped hole.

[0020] By adopting the above technical solution, the setting of the waist-shaped hole can adjust the inclined installation angle of the driver when installing the driver. Since the driver is installed at an angle, the exciting force of the driver is also inclined, and the inclined exciting force can be decomposed into horizontal conveying force and vertical vibration force. The horizontal conveying force is used to control the moving speed of the material, and the vertical vibration force is used to control the bounce height of the material. When the exciting force of the driver remains unchanged and the inclined installation angle of the driver changes, the horizontal conveying force and the vertical vibration force will both change, so the moving speed and bounce height of the material will change, so that the inclined installation angle of the driver can be adjusted according to the movement requirements of different materials.

[0021] Furthermore, a bottom plate for increasing the ground contact area is fixedly connected to the lower end of the fixed mounting seat, and a plurality of reinforcing ribs are provided between the fixed mounting seat and the bottom plate.

[0022] By adopting the above technical solution, the base plate can increase the contact area between the fixed mounting seat and the ground, thereby improving the stability of the fixed mounting seat; the reinforcing ribs can, on the one hand, improve the connection stability between the fixed mounting seat and the base plate, and on the other hand, can provide a certain lateral support force for the fixed mounting seat, thereby improving the support stability of the fixed mounting seat.

[0023] Furthermore, the shock-absorbing component is a shock-absorbing rubber block, the upper end of which is fixedly connected to the conveying trough body, an adjustment groove is laterally opened at the upper end of the fixed mounting seat, and the lower end of the shock-absorbing rubber block is movably arranged in the adjustment groove and fixed to the fixed mounting seat by a nut.

[0024] By adopting the above technical solution, the shock-absorbing rubber block can reduce the vibration of the conveying trough body transmitted to the fixed mounting seat, thereby reducing the vibration damage to the fixed mounting seat and extending the service life. In addition, the setting of the adjustment groove can adjust the installation position of the conveying trough body in the horizontal direction.

[0025] Furthermore, an inclined diffusion plate is fixedly connected to the inner wall of one end of the conveying trough body. The diffusion plate is located in the middle of the conveying trough body and diffuses in a fan shape to all sides.

[0026] By adopting the above technical solution, when pouring materials into the conveying trough body, it is only necessary to pour them onto the diffusion plate. The diffusion plate can diffuse the concentrated materials to the surroundings, thereby ensuring the uniformity of material transportation.

[0027] Furthermore, a plurality of guide plates are fixedly connected to the inner bottom wall of the conveying trough body, and the guide plates are inclinedly arranged from the diffusion plate toward the side walls of both sides of the conveying trough body.

[0028] By adopting the above technical solution, after the diffusion plate diffuses the material to the surroundings, the guide plate can guide the material to move to the two sides of the conveying trough, making the material more dispersed, further improving the uniformity of material transportation, and the diffusion plate and the guide plate are used together for better effect.

[0029] Furthermore, a plurality of hooks for hoisting the conveying trough body are fixedly connected to the outer walls on both sides of the conveying trough body.

[0030] By adopting the above technical solution, when installing the entire equipment, it is necessary to first fix the fixed mounting seat, and then lift the conveying trough body onto the fixed mounting seat. The setting of the hook can provide a lifting position for the lifting of the conveying trough body, thereby ensuring the lifting stability of the conveying trough body.

[0031] Compared with the prior art, the present invention has the following beneficial effects:

[0032] (1) The driver is in a stationary state and does not vibrate with the conveyor trough body. Therefore, it will be less damaged by vibration, which can extend its service life. At the same time, it can also appropriately increase the amplitude of the conveyor trough body, so that it can be used in more application scenarios. Secondly, when the equipment is working, only the conveyor trough body is vibrating. Therefore, only a small amount of counterweight mass needs to be added to the fixed mounting seat to offset the vibration force transmitted by the conveyor trough body, that is, the counterweight mass is reduced, thereby reducing the manufacturing cost and operating cost of the entire equipment.

[0033] (2) The setting of the waist-shaped hole can adjust the tilted installation angle of the driver when installing the driver. Since the driver is installed at an angle, the exciting force of the driver is also tilted, and the tilted exciting force can be decomposed into horizontal conveying force and vertical vibration force. The horizontal conveying force is used to control the moving speed of the material, and the vertical vibration force is used to control the bounce height of the material. When the exciting force of the driver remains unchanged and the tilted installation angle of the driver changes, the horizontal conveying force and the vertical vibration force will both change, so the moving speed and bounce height of the material will change, so the tilted installation angle of the driver can be adjusted according to the movement requirements of different materials.

[0034] (3) After the diffusion plate diffuses the material to the surroundings, the guide plate can guide the material to move to the two sides of the conveying trough, making the material more dispersed and further improving the uniformity of material transportation. The diffusion plate and the guide plate work together to achieve better results. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0036] Figure 1 It is a schematic diagram of the overall structure of a vibrating feeder;

[0037] Figure 2 It is a schematic diagram of the installation of the fixed mounting seat and the shock absorbing member;

[0038] Figure 3 It is a structural schematic diagram of a support seat and an elastic component;

[0039] Figure 4 It is a schematic diagram of the structure of the drive connecting frame;

[0040] Explanation of the reference numerals in the accompanying drawings: 1. Conveying trough body; 2. Fixed mounting seat; 3. Shock-absorbing member; 30. Shock-absorbing rubber block; 31. Adjusting groove; 4. Support seat; 5. Elastic component; 50. Connecting plate; 51. Pressure block; 52. Leaf spring; 6. Driver; 7. Driver connecting frame; 70. Waist-shaped hole; 8. Bottom plate; 9. Reinforcing rib; 10. Diffuser plate; 11. Drainage plate; 12. Hook. DETAILED DESCRIPTION

[0041] The following will be combined with the accompanying drawings in the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work belong to the protection scope of the present invention.

[0042] The following is combined with Figure 1 To Attachment Figure 4 The present invention is described in detail with reference to specific embodiments.

[0043] Reference Figure 1-Figure 4 A vibrating feeder provided by the present invention includes a working mass and a driving mass. The working mass includes a conveying trough body 1 for conveying materials. A fixed mounting seat 2 for supporting the conveying trough body 1 is provided below the conveying trough body 1. The conveying trough body 1 is installed on the fixed mounting seat 2 through a plurality of shock absorbing members 3. The driving mass includes a support seat 4 and a driver 6 installed on the support seat 4. The support seat 4 is provided below the conveying trough body 1. A plurality of elastic components 5 are provided between the conveying trough body 1 and the support seat 4.

[0044] It should be noted that the driver 6 can be a motor driver or an electromagnetic driver, but is not limited to these two types of drivers. The present invention does not specifically limit the type of the driver 6.

[0045] Specifically, the conveying trough body 1 is installed on the fixed mounting seat 2 through the shock absorbing member 3. When the equipment is working, the conveying trough body 1 will vibrate. The shock absorbing member 3 can reduce the vibration of the conveying trough body 1 transmitted to the fixed mounting seat 2, thereby reducing the vibration damage to the fixed mounting seat 2 and extending the service life of the fixed mounting seat 2; in addition, the driver 6 is not directly installed on the conveying trough body 1, but is fixedly installed on the support seat 4. Therefore, the driver 6 and the support seat 4 can be regarded as a whole, and an elastic component 5 is provided between the support seat 4 and the conveying trough body 1, so it can be understood that the driver 6 is installed on the conveying trough body 1 through the elastic component 5. Analysis shows that when the equipment is working, the support seat 4 will be subjected to the exciting force of the driver 6 with periodic and reciprocating directions, and then the support seat 4 will transmit this exciting force to the elastic component 5 , so the elastic component 5 will be subjected to the exciting force of the driver 6. After being subjected to the exciting force, the elastic component 5 will generate a restoring force to resist deformation. This restoring force is also periodic and in the opposite direction to the exciting force. The two ends of the elastic component 5 are respectively connected to the support seat 4 and the conveying trough body 1, so the support seat 4 and the conveying trough body 1 will both be subjected to the restoring force from the elastic component 5; therefore, the support seat 4 is subjected to the exciting force of the driver 6 and the restoring force of the elastic component 5 to resist the exciting force. Through the design of specific parameters, the two forces are made equal and opposite, so that the stationary state of the support seat 4 during the working process can be achieved, and the driver 6 is fixedly mounted on the support seat 4, so the driver 6 is also in a stationary state; when the conveying trough body 1 is subjected to the restoring force of the elastic component 5, it will vibrate, thereby driving the material in the conveying trough body 1 to move.

[0046] Next, the calculation method for achieving the stationary state of the driving mass is given: Assume that the mass of the working mass is , its motion displacement is The mass of the driving mass is , its motion displacement is To express, the stiffness of the shock absorber 3 is , the stiffness of the elastic component is , the exciting force of driver 6 is ,in is the amplitude, is the driving frequency, For time.

[0047] The differential equation of motion used to describe the present invention is as follows:

[0048]

[0049] Assume that the displacement responses of the working mass and the driving mass are: and ,in and are the motion amplitudes of the working mass and the driving mass, respectively.

[0050] Will and Substituting into the differential equation of motion, we can obtain the characteristic equation of the system:

[0051]

[0052] By solving the characteristic equation of the system, the motion amplitudes of the working mass and the driving mass can be obtained as follows:

[0053]

[0054] when When , it indicates that the driving mass body is in a static state during the working process, and its realization conditions are as follows:

[0055]

[0056] The above conditions indicate the relationship between the frequency of the driver 6 and the system structural parameters. The calculation method can be used to ensure that the driving mass is in a stationary state during the working process.

[0057] In addition, the present invention is a dual-mass system, namely a working mass and a driving mass. The dual-mass system has two natural frequencies. By solving the system characteristic equation, the two-order natural frequencies of the present invention can be obtained.

[0058] The first order natural frequency is:

[0059]

[0060] The second order natural frequency is:

[0061]

[0062] The driving frequency used in the present invention is between the first-order natural frequency and the second-order natural frequency. In order to prevent resonance during the startup process, the interval between the first-order natural frequency and the second-order natural frequency should be increased as much as possible.

[0063] The installation method in which the driver 6 is installed on the conveying trough body 1 through the elastic component 5 has the following advantages: first, the driver 6 is in a stationary state and does not vibrate with the conveying trough body 1, so it will be less damaged by vibration and can extend its service life. At the same time, it can also appropriately increase the amplitude of the conveying trough body 1, so that it can be suitable for more application scenarios; secondly, when the equipment is working, only the conveying trough body 1 vibrates, so only a small amount of counterweight mass needs to be added to the fixed mounting seat 2 to offset the vibration force transmitted from the conveying trough body 1, that is, the counterweight mass is reduced, thereby reducing the manufacturing cost and operating cost of the entire equipment.

[0064] As a preferred embodiment, the elastic component 5 includes two connecting plates 50, one connecting plate 50 is fixedly connected to the conveying trough body 1, and the other connecting plate 50 is fixedly connected to the support seat 4. A plurality of pressing blocks 51 are arranged on each connecting plate 50, and a leaf spring 52 is arranged between two adjacent pressing blocks 51. One end of the leaf spring 52 is installed on the conveying trough body 1 through the pressing block 51 and the connecting plate 50, and the other end of the leaf spring 52 is also installed on the support seat 4 through the pressing block 51 and the connecting plate 50. The present invention selects the leaf spring 52 as the elastically deformed component in the elastic component 5. The leaf spring 52 has a stronger bearing capacity, and the bearing capacity can be improved by superimposing the leaf springs 52. The present invention does not specifically limit the number of leaf springs 52.

[0065] As a preferred embodiment, one end of the support seat 4 is fixedly connected to a driver connecting frame 7, and the driver 6 is detachably mounted on the driver connecting frame 7 by bolts, thereby facilitating the later maintenance and replacement of the driver 6.

[0066] As a preferred embodiment, the driver 6 is installed at an angle, and a waist-shaped hole 70 is opened on the driver connecting frame 7. The bolts for installing the driver 6 pass through the waist-shaped hole 70. The setting of the waist-shaped hole 70 can adjust the tilted installation angle of the driver 6 when installing the driver 6. Since the driver 6 is installed at an angle, the exciting force of the driver 6 is also tilted, and the inclined exciting force can be decomposed into a horizontal conveying force and a vertical vibration force. The horizontal conveying force is used to control the moving speed of the material, and the vertical vibration force is used to control the bounce height of the material. When the exciting force of the driver 6 remains unchanged and the tilted installation angle of the driver 6 changes, the horizontal conveying force and the vertical vibration force will both change, so the moving speed and the bounce height of the material will change, so that the tilted installation angle of the driver 6 can be adjusted according to the movement requirements of different materials.

[0067] As a preferred embodiment, a bottom plate 8 for increasing the ground contact area is fixedly connected to the lower end of the fixed mounting seat 2. The bottom plate 8 can increase the contact area between the fixed mounting seat 2 and the ground, thereby improving the stability of the fixed mounting seat 2.

[0068] As a preferred embodiment, a plurality of reinforcing ribs 9 are provided between the fixed mounting seat 1 and the bottom plate 8. The reinforcing ribs 9 can improve the connection stability between the fixed mounting seat 2 and the bottom plate 8 on the one hand, and can provide a certain lateral support force for the fixed mounting seat 2 on the other hand, thereby improving the support stability of the fixed mounting seat 2.

[0069] As a preferred embodiment, the shock absorbing member 3 is a shock absorbing rubber block 30, the upper end of the shock absorbing rubber block 30 is fixedly connected to the conveying trough body 1, and an adjustment groove 31 is transversely opened at the upper end of the fixed mounting seat 2, and the lower end of the shock absorbing rubber block 30 is movably arranged in the adjustment groove 31 and fixed to the fixed mounting seat 2 by a nut. In the present invention, the shock absorbing member 3 uses the shock absorbing rubber block 30, but is not limited to this method. The present invention does not specifically limit the type of the shock absorbing member 3, and other components that can play a shock absorbing role are also within the protection scope of the present invention. The shock absorbing rubber block 30 can reduce the vibration of the conveying trough body 1 transmitted to the fixed mounting seat 2, thereby reducing the vibration damage to the fixed mounting seat 2 and extending the service life. In addition, the setting of the adjustment groove 31 can adjust the installation position of the conveying trough body 1 in the horizontal direction.

[0070] As a preferred embodiment, an inclined diffusion plate 10 is fixedly connected to the inner wall of one end of the conveying trough body 1. The diffusion plate 10 is located in the middle of the conveying trough body 1 and diffuses in a fan-shaped manner. When pouring materials into the conveying trough body 1, it is only necessary to pour them on the diffusion plate 10. The diffusion plate 10 can diffuse the concentrated materials in all directions, thereby ensuring uniform material transportation.

[0071] As a preferred embodiment, a plurality of guide plates 11 are fixedly connected to the inner bottom wall of the conveying trough body 1, and the guide plates 11 are inclined from the diffusion plate 10 toward the side walls of the conveying trough body 1. After the diffusion plate 10 diffuses the material to the surroundings, the guide plates 11 can guide the material to move to the two sides of the conveying trough body 1, making the material more dispersed, further improving the uniformity of material transportation, and the diffusion plate 10 and the guide plate 11 are used together for better effect.

[0072] As a preferred embodiment, multiple hooks 12 for hoisting the conveying trough body 1 are fixedly connected to the outer walls on both sides of the conveying trough body 1. When installing the entire equipment, it is necessary to first fix the fixed mounting seat 2, and then hoist the conveying trough body 1 onto the fixed mounting seat 2. The setting of the hooks 12 can provide a hoisting position for the hoisting of the conveying trough body 1, thereby ensuring the hoisting stability of the conveying trough body 1.

[0073] The present invention is further described above with the aid of specific embodiments. However, it should be understood that the specific description here should not be construed as limiting the essence and scope of the present invention. Various modifications made to the above embodiments by ordinary technicians in the field after reading this specification are all within the scope of protection of the present invention.

Claims

1. A vibrating feeder, characterized in that: It comprises a working mass and a driving mass, wherein the working mass comprises a conveying trough body for conveying materials, a fixed mounting seat for supporting the conveying trough body is provided below the conveying trough body, the conveying trough body is installed on the fixed mounting seat through a plurality of shock absorbing members, the driving mass comprises a support seat and a driver installed on the support seat, the support seat is provided below the conveying trough body, and a plurality of groups of elastic components are provided between the conveying trough body and the support seat; Assume the mass of the working mass is , the motion amplitude is expressed as The mass of the driving mass is , its motion displacement is To express, the stiffness of the shock absorber is , the stiffness of the elastic component is , the amplitude of the driver is , the driving frequency is ; The motion amplitudes of the working mass and the driving mass are as follows: make , the driving frequency of the driver is: The driving mass is in a stationary state during operation.

2. The vibrating feeder according to claim 1, characterized in that: The elastic component includes two connecting plates, one of which is fixedly connected to the conveying trough body, and the other of which is fixedly connected to the support seat. Each of the connecting plates is provided with a plurality of pressure blocks, and a leaf spring is provided between two adjacent pressure blocks. One end of the leaf spring is installed on the conveying trough body through the pressure block and the connecting plate, and the other end of the leaf spring is also installed on the support seat through the pressure block and the connecting plate.

3. The vibrating feeder according to claim 1, characterized in that: One end of the support seat is fixedly connected to a driver connecting frame, and the driver is detachably mounted on the driver connecting frame by bolts.

4. The vibrating feeder according to claim 3, characterized in that: The driver is installed obliquely, and a waist-shaped hole is opened on the driver connecting frame. The bolt used to install the driver passes through the waist-shaped hole.

5. The vibrating feeder according to claim 1, characterized in that: The lower end of the fixed mounting seat is fixedly connected with a bottom plate for increasing the ground contact area, and a plurality of reinforcing ribs are arranged between the fixed mounting seat and the bottom plate.

6. The vibrating feeder according to claim 1, characterized in that: The shock absorbing component is a shock absorbing rubber block, the upper end of which is fixedly connected to the conveying trough body, an adjustment groove is transversely opened at the upper end of the fixed mounting seat, and the lower end of the shock absorbing rubber block is movably arranged in the adjustment groove and fixed to the fixed mounting seat through a nut.

7. The vibrating feeder according to claim 1, characterized in that: An inclined diffusion plate is fixedly connected to the inner wall of one end of the conveying trough body. The diffusion plate is located in the middle of the conveying trough body and diffuses in a fan shape to all sides.

8. The vibrating feeder according to claim 7, characterized in that: A plurality of guide plates are fixedly connected to the inner bottom wall of the conveying trough body, and the guide plates are arranged obliquely from the diffusion plate toward the side walls of both sides of the conveying trough body.

9. The vibrating feeder according to claim 1, characterized in that: A plurality of hooks for hoisting the conveying trough body are fixedly connected to the outer walls on both sides of the conveying trough body.

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