Mute type vibrating feeding device for shaking bottom furnace

Abstract

This utility model relates to the field of vibrating hearth furnace technology and discloses a silent vibrating hearth furnace vibrating feeding device, including a servo motor and a drive wheel. An eccentric shaft is fixedly installed on the top of the drive wheel, and a rolling bearing is sleeved on the surface of the eccentric shaft. A buffer block is in contact with the side of the rolling bearing, and a drive plate is fixedly installed on the side of the buffer block. A furnace bottom plate is fixedly installed at one end of the drive plate. This vibrating hearth furnace vibrating feeding device, by adopting an eccentric wheel displacement structure, makes the machinery simpler and more reliable, simplifies the construction of the vibrating equipment, and has a built-in vibration buffer function. It uses non-metallic nylon material as the vibration transmission buffer material, reducing harsh mechanical impacts, making the vibration waves more stable and powerful, and eliminating mechanical noise. The use of a grooved vibrating drive plate makes it easier to position, solving the problems of low transmission efficiency and high failure rate, reducing noise and avoiding noise pollution, while improving the stability of the vibrating hearth furnace feeding effect.

Description

Technical Field

[0001] This utility model relates to the field of vibrating hearth furnace technology, specifically a vibrating feeding device for a silent vibrating hearth furnace. Background Technology

[0002] A vibrating hearth furnace generally refers to a type of furnace where the furnace bottom plate reciprocates under the action of a vibrating mechanism. The bottom plate vibrates back and forth at different speeds in the two directions. Workpieces on the bottom plate move relative to it due to inertia, pulsatingly moving from the feed end to the discharge end. Currently used vibrating mechanisms mainly include electromagnetic, mechanical cam, pneumatic, and hydraulic cylinder types. The electromagnetic type uses a 50Hz AC electromagnet as the vibration source, employing a tilting ejection principle. However, it produces high low-frequency noise and easily causes fatigue in the furnace bottom and flask, leading to upward arching in the middle and forcing a shutdown for maintenance. Mechanical cam furnaces... The bottom uses a cam rotation return stroke, with spring potential energy and a ramp assisting the forward stroke until it touches the cam again and stops. This results in extremely loud collision noise, low transmission efficiency, high failure rate, and very short component lifespan. The ramp structure causes a significant increase in furnace atmosphere and heat loss, failing to achieve the desired energy-saving effect. The cylinder and hydraulic cylinder types use compressed air or a hydraulic station as power. This structure uses a reversing valve to switch the direction of circuit pressure flow to achieve vibration. Because the vibration stroke of the vibrating hearth furnace is short, rapid acceleration and deceleration within the short stroke will cause the pressure cylinder seals to wear too quickly, resulting in a short service life. The low-frequency noise generated by pressure reversal will cause environmental pollution.

[0003] Currently, the advantages of vibrating hearth furnaces, such as simple structure, easy manufacturing, high heating efficiency, and energy saving, are recognized in the industry. However, vibrating hearth furnaces have not been widely promoted. The fundamental reason is that the current vibrating mechanism has too low transmission efficiency and too high failure rate in actual use. Low-frequency noise also leads to poor stability in the feeding effect of the vibrating hearth furnace. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides a vibration feeding device for a silent vibrating hearth furnace, which solves the problem that the low-frequency noise of the vibration feeding device for the silent vibrating hearth furnace leads to poor stability of the feeding effect and low transmission efficiency.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model is implemented through the following technical solution: a silent vibrating hearth furnace vibrating feeding device, including a servo motor and a drive wheel, an eccentric small shaft is fixedly installed on the top of the drive wheel, a rolling bearing is sleeved on the surface of the eccentric small shaft, a buffer block is contacted and fitted on the side of the rolling bearing, a drive plate is fixedly installed on the side of the buffer block, and a furnace bottom plate is fixedly installed at one end of the drive plate.

[0008] Optionally, a speed reducer is fixedly installed at the output end of the servo motor, and the output end of the speed reducer is fixedly installed at one end of the drive wheel.

[0009] Optionally, one end of the eccentric small shaft is fixedly installed to a rolling bearing via a bearing cap, and the rolling bearing is disposed in a slot inside the drive plate.

[0010] Optionally, a positioning module is provided on the side of the drive board.

[0011] Optionally, the positioning module includes a longitudinal positioning wheel and a transverse positioning wheel, wherein the side of the longitudinal positioning wheel contacts and engages with the side of the drive plate, and the side of the transverse positioning wheel contacts and engages with one end of the drive plate.

[0012] Optionally, the positioning module further includes a positioning frame, the side of which is fixedly installed at the central axis position of both the longitudinal positioning wheel and the transverse positioning wheel.

[0013] Optionally, a pair of longitudinal positioning wheels and transverse positioning wheels are symmetrically arranged about the middle of the drive plate.

[0014] Optionally, a position sensor is fixedly mounted on the top of the reducer.

[0015] (III) Beneficial Effects

[0016] This utility model provides a silent vibratory feeding device for a vibratory hearth furnace, which has the following advantages:

[0017] This silent vibrating hearth furnace vibrating feeding device adopts an eccentric wheel displacement structure, making the machinery simpler and more reliable, simplifying the construction of the vibrating equipment, and has a built-in vibration buffer function. It uses non-metallic nylon material as the vibration transmission buffer material, reducing harsh mechanical impacts, making the vibration waves more stable and powerful, and eliminating mechanical noise. The grooved vibration drive plate is easier to position, solving the problems of low transmission efficiency and high failure rate, reducing noise and avoiding noise pollution, while improving the feeding stability of the vibrating hearth furnace. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the furnace bottom plate structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the positioning module structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the servo motor structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the drive wheel structure of this utility model.

[0022] In the diagram: 1. Servo motor; 2. Reducer; 3. Drive wheel; 4. Eccentric shaft; 5. Rolling bearing; 6. Bearing cover; 7. Buffer block; 8. Drive plate; 9. Positioning module; 901. Longitudinal positioning wheel; 902. Transverse positioning wheel; 903. Positioning frame; 10. Position sensor; 11. Furnace bottom plate. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0024] Please see Figures 1 to 4 This utility model provides a silent vibrating hearth furnace vibrating feeding device. This embodiment improves the structure of the vibrating feeding device, simplifying its construction and providing built-in vibration buffering. Specifically, taking the feeding device as an example, as a preferred embodiment, the feeding device is a silent vibrating hearth furnace vibrating feeding device, which reduces mechanical impact during feeding, making the vibration waves more stable and powerful while eliminating mechanical noise.

[0025] Please see Figures 1 to 4 This utility model provides a technical solution: a silent vibrating hearth furnace vibrating feeding device, which is mainly used in the scenario of feeding materials in a vibrating hearth furnace.

[0026] The system includes a servo motor 1 and a drive wheel 3. An eccentric shaft 4 is fixedly mounted on the top of the drive wheel 3. A rolling bearing 5 is fitted on the surface of the eccentric shaft 4. A buffer block 7 is in contact with the side of the rolling bearing 5. A drive plate 8 is fixedly mounted on the side of the buffer block 7. A furnace bottom plate 11 is fixedly mounted on one end of the drive plate 8. The high-torque rotating disk drives the wheel 3 in conjunction with the eccentric shaft 4 of the vibration output section to convert the rotational motion into circular motion. The circumference diameter is twice the eccentricity. The rolling bearing 5 plays a role in motion transmission. Vibration energy is transmitted to the drive plate 8 through the nylon buffer block 7 via rolling friction. The nylon buffer block 7 is used to buffer the energy transmission between the rolling bearing 5 and the drive plate 8, converting the circular motion of the eccentric shaft 4 into linear reciprocating motion to prevent metal impact noise. The drive plate 8 transmits the linear motion from the buffer block 7 to the furnace bottom plate 11. The furnace bottom plate 11 is used to transport the workpiece to the furnace for heating in one direction.

[0027] In the above embodiments, as a preferred option, a reducer 2 is fixedly installed at the output end of the servo motor 1. The output end of the reducer 2 is fixedly installed at one end of the drive wheel 3. The servo motor 1 serves as the power source for the machine, and the reducer 2 plays a torque amplification role. The widely used servo motor 1 is used as the power source, and the digital control principle is applied to give full play to the characteristics of modern digital networked equipment, which is convenient for Internet of Things management.

[0028] In the above embodiment, as a preferred solution, one end of the eccentric small shaft 4 is fixedly installed with the rolling bearing 5 through the bearing cover 6. The rolling bearing 5 is set in the slot inside the drive plate 8. The rolling bearing 5 and the eccentric small shaft 4 are fixed together by the anti-detachment cover of the bearing cover 6 to prevent the rolling bearing 5 from coming off.

[0029] In the above embodiments, as a preferred option, a positioning module 9 is provided on the side of the drive plate 8. The positioning module 9 restricts the running trajectory of the drive plate 8 so that the drive plate 8 can accurately transmit the vibration energy to the furnace bottom plate 11.

[0030] In the above embodiment, as a preferred solution, the positioning module 9 includes a longitudinal positioning wheel 901 and a transverse positioning wheel 902. The side of the longitudinal positioning wheel 901 contacts and engages with the side of the drive plate 8, and the side of the transverse positioning wheel 902 contacts and engages with one end of the drive plate 8. The positioning module 9 also includes a positioning frame. The side of the positioning frame is fixedly installed at the central axis position of both the longitudinal positioning wheel 901 and the transverse positioning wheel 902. A pair of longitudinal positioning wheels 901 and transverse positioning wheels 902 are symmetrically arranged about the middle of the drive plate 8. The position is limited by the rolling contact between the longitudinal positioning wheel 901 and the transverse positioning wheel 902 and the side of the drive plate 8. The positioning frame is fixed to other external components to ensure stable positioning.

[0031] In the above embodiment, as a preferred option, a position sensor 10 is fixedly installed on the top of the reducer 2, and the position sensor 10 is used to detect the origin of the induced vibration.

[0032] All electrical components mentioned in this article are connected to an external main controller and 220V AC mains power, and the main controller can be a conventional known device such as a computer that can control it.

[0033] In this invention, the working steps of the device are as follows:

[0034] 1. The drive wheel 3 is driven by the servo motor 1 and the reducer 2 to rotate once, which is one vibration. When the drive wheel 3 rotates, it drives the eccentric shaft 4 to make a circular motion. The bearing installed on the eccentric shaft 4 transmits the eccentric force to the buffer block 7 fixed on the drive plate 8 and converts it into linear motion. The buffer block 7 drives the drive plate 8 to make a forward and backward motion. This motion is transmitted to the furnace bottom plate 11 which is connected to the drive plate 8 as a whole.

[0035] 2. The material placed on the furnace bottom plate 11 moves forward with acceleration along with the furnace bottom plate 11. After the furnace bottom plate 11 reaches the front end point, it suddenly reverses direction and moves backward. The material continues to slide forward under the action of motion inertia. At the same time, the furnace bottom plate 11 decelerates and moves backward to the starting point and stops. The material finally stops on the furnace bottom plate 11 when the inertial force ends and waits for the next cycle. The material moves forward intermittently by a few centimeters at a time.

[0036] 3. The conveying speed is determined by two parts: vibration speed and vibration frequency. The greater the vibration intensity, the greater the distance the material travels; the faster the vibration frequency, the faster the material travels.

[0037] 4. The PLC's variable speed pulse output command is used to control the rotation of servo motor 1. When the command is driven, the servo operates according to the pulse issued by the PLC. The PLC outputs corresponding signal pulses according to the preset frequency and acceleration time. During the return stroke, it decelerates and stops according to the preset deceleration time and deceleration frequency. The next cycle is started using the built-in timer. A touch screen human-machine interface is used to preset the frequency, acceleration and deceleration time and vibration interval for the PLC. The PLC's mathematical logic operation function is used to calculate the vibration frequency and display it on the touch screen, which is convenient for process engineers to calculate the firing time.

[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A vibration feeding device for a silent shock bottom furnace, comprising a servo motor (1) and a driving wheel (3), characterized in that: An eccentric small shaft (4) is fixedly installed on the top of the drive wheel (3). A rolling bearing (5) is sleeved on the surface of the eccentric small shaft (4). A buffer block (7) is in contact with the side of the rolling bearing (5). A drive plate (8) is fixedly installed on the side of the buffer block (7). A furnace bottom plate (11) is fixedly installed at one end of the drive plate (8).

2. The vibration feeding device for the muffle furnace according to claim 1, wherein: The output end of the servo motor (1) is fixedly mounted with a reducer (2), and the output end of the reducer (2) is fixedly mounted with one end of the drive wheel (3).

3. The vibratory feeding device for a silent vibratory hearth furnace according to claim 1, characterized in that: One end of the eccentric small shaft (4) is fixedly installed with the rolling bearing (5) through the bearing cover (6), and the rolling bearing (5) is set in the slot inside the drive plate (8).

4. The vibratory feeding device for a silent vibratory hearth furnace according to claim 3, characterized in that: The drive board (8) is provided with a positioning module (9) on its side.

5. The vibratory feeding device for a silent vibratory hearth furnace according to claim 4, characterized in that: The positioning module (9) includes a longitudinal positioning wheel (901) and a transverse positioning wheel (902). The side of the longitudinal positioning wheel (901) is in contact with the side of the drive plate (8), and the side of the transverse positioning wheel (902) is in contact with one end of the drive plate (8).

6. The vibratory feeding device for a silent vibratory hearth furnace according to claim 5, characterized in that: The positioning module (9) also includes a positioning frame (903), the side of which is fixedly installed at the central axis position of the longitudinal positioning wheel (901) and the transverse positioning wheel (902).

7. A vibratory feeding device for a silent vibratory hearth furnace according to claim 6, characterized in that: The longitudinal positioning wheel (901) and the transverse positioning wheel (902) are each symmetrically arranged in a pair about the middle of the drive plate (8).

8. The vibratory feeding device for a silent vibratory hearth furnace according to claim 2, characterized in that: A position sensor (10) is fixedly installed on the top of the reducer (2).

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