Jarring type sieve shaker with multi-stage screening structure

Abstract

The utility model discloses a jarring type sieve shaker with a multi-stage screening structure, and relates to the field of jarring type sieve shakers. The vibration screening device comprises a sound insulation cover and a vibration screening device body, the vibration screening device body comprises an installation frame and an eccentric wheel, and a swing disc is installed on the top of the eccentric wheel through an ejector rob. The vibration screening device is provided with a monitoring mechanism and a first installation frame, and an infrared temperature sensor in the monitoring mechanism can monitor the temperature of the connecting position of the eccentric wheel and the ejector rob in real time; by means of the arrangement, the situation that due to long-term bearing of large force and frequent vibration, the temperature rises due to the problems of insufficient lubrication and the like can be detected, when the temperature exceeds a set threshold value, a signal can be effectively sent to an external control terminal, then the two sets of maintenance mechanisms are started, all corners of a connecting part are covered with lubricating oil more evenly, and the service life of the connecting part is prolonged. And the problems of over-high temperature and abrasion acceleration caused by insufficient lubrication are effectively solved.

Description

Technical Field

[0001] This utility model relates to the field of impact vibrating screens, specifically an impact vibrating screen with a multi-stage screening structure. Background Technology

[0002] The impact vibrating screen is a device that uses vibration and impact force to screen materials. It is widely used in laboratories or testing rooms in industries such as construction, geology, metallurgy, chemical, cement, coal, abrasive, food, and medicine. The device is powered by an electric motor, which drives the entire screening machine. The electric motor converts the rotational motion into oscillating motion. The oscillating mechanism consists of a main eccentric shaft, a secondary eccentric shaft, and an oscillating frame. The main eccentric shaft is driven to rotate by the electric motor, which drives the secondary eccentric shaft and the oscillating frame that houses the screen assembly to oscillate in a planar circular motion. The impact mechanism includes a cam, a push rod, and an anvil. The cam is driven to rotate by the electric motor through another pair of worm gears. The push rod rotates with the cam and periodically pushes up the oscillating frame. The oscillating frame falls under its own weight and strikes the anvil, generating an impact force to screen the materials. It is an indispensable screening device in laboratories and testing rooms.

[0003] However, in current impact vibrating screens, the connection between the eccentric wheel and eccentric shaft under the swing disc generates heat during rapid rotation. Over extended use, the lubricating grease inside the bearings at this connection point is continuously consumed, gradually weakening the lubrication effect and increasing frictional resistance. This leads to a gradual increase in heat generation. If not addressed promptly, this can cause the bearing temperature to become too high, accelerating bearing wear and damage. Consequently, it affects the connection stability of the eccentric wheel and eccentric shaft, potentially causing mechanical failures, reducing the lifespan of the screening machine, and in severe cases, even causing equipment shutdown and disrupting normal screening operations. Utility Model Content

[0004] Based on this, the purpose of this utility model is to provide a vibratory screen with a multi-stage screening structure to solve the technical problem that insufficient lubrication of the bearings at the connection position of the eccentric wheel and eccentric shaft leads to excessive temperature and accelerated wear, which in turn affects the connection stability and service life of the equipment, and may even cause mechanical failure and equipment shutdown.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a multi-stage screening structure impact vibrating screen, including a soundproof cover and a vibrating screen device. The vibrating screen device includes a mounting frame and an eccentric wheel. A swing disk is mounted on the top of the eccentric wheel via a top rod. A bearing frame is provided between the eccentric wheel and the swing disk. The bearing inside the bearing frame is connected to the transmission rod at the bottom of the eccentric wheel. A monitoring mechanism and a maintenance mechanism are provided on one side of the top of the bearing frame, and an arc-shaped baffle is provided on the other side of the top of the bearing frame.

[0006] The monitoring mechanism includes a first mounting frame, which is detachably connected to the bearing frame by bolts. The first mounting frame is equipped with an infrared temperature sensor for monitoring the connection between the eccentric wheel and the push rod. Two sets of maintenance mechanisms for maintaining the connection between the eccentric wheel and the push rod are provided on both sides of the monitoring mechanism.

[0007] By adopting the above technical solution, it is convenient to monitor and maintain the connection between the eccentric wheel and the push rod in real time, while effectively preventing lubricating oil from contaminating other parts, thus improving the reliability and stability of the equipment.

[0008] Furthermore, both sets of the maintenance mechanisms include a second mounting bracket, which is detachably connected to the bearing bracket by bolts.

[0009] By adopting the above technical solution, the second mounting bracket of the maintenance mechanism is detachably connected to the bearing bracket by bolts, which facilitates the installation, disassembly and maintenance of the maintenance mechanism, reduces the difficulty and cost of maintenance, and improves the maintainability of the equipment.

[0010] Furthermore, the second mounting bracket is equipped with an atomizing sprayer, and one end of the atomizing sprayer is equipped with a nozzle facing the connection between the eccentric wheel and the top rod.

[0011] By adopting the above technical solution, the atomizing sprayer is set on the second mounting bracket, with the nozzle facing the connection between the eccentric wheel and the top rod. This allows the lubricating oil to be accurately sprayed in atomized form onto the parts that need lubrication, improving the lubrication effect, reducing friction and wear between components, and extending the service life of the equipment.

[0012] Furthermore, the other end of the atomizing sprayer is provided with an oil guide pipe, which passes through the soundproof cover and is connected to an external lubricating oil pump.

[0013] By adopting the above technical solution, the atomizing sprayer is connected to an external lubricating oil pump through an oil guide pipe, realizing the external supply of lubricating oil. This facilitates the control of the flow and pressure of the lubricating oil, ensures the stable operation of the lubrication system, and also facilitates centralized management and replacement of the lubricating oil.

[0014] Furthermore, the two sets of maintenance mechanisms are mirror images of the monitoring mechanism along its central axis.

[0015] By adopting the above technical solution, the two sets of maintenance mechanisms are set up mirror images along the central axis of the monitoring mechanism, which makes the maintenance work at the connection between the eccentric wheel and the push rod more uniform and comprehensive, avoiding problems caused by insufficient maintenance on one side, and improving the overall performance and reliability of the equipment.

[0016] Furthermore, the arc-shaped baffle is used to block the atomized lubricating oil, and the arc-shaped baffle is detachably connected to the bearing bracket by bolts.

[0017] By adopting the above technical solution, the arc-shaped baffle is used to block the atomized lubricating oil, and it is connected to the bearing bracket by bolts. This can effectively prevent the lubricating oil from splashing onto other parts of the vibrating screen equipment, avoid the impact of the lubricating oil on the normal operation of the equipment, reduce the pollution of the working environment by the lubricating oil, and improve the cleanliness and safety of the equipment.

[0018] Furthermore, a motor is provided on one side of the mounting bracket, a drive wheel is provided at the output end of the motor, a driven wheel is provided at the bottom of the transmission rod, and a belt for transmission is sleeved between the drive wheel and the driven wheel, and the diameter of the driven wheel is larger than that of the drive wheel.

[0019] By adopting the above technical solution, a motor is installed on one side of the mounting frame. Through the transmission method of the driving wheel, driven wheel and belt, and the diameter of the driven wheel is larger than that of the driving wheel, the effect of speed reduction and torque increase is achieved, so that the transmission rod can obtain sufficient torque to drive the eccentric wheel to make eccentric motion, ensuring the normal operation and efficient screening of the vibrating screen equipment.

[0020] Furthermore, a swing frame is provided above the swing disk, and a clamping cover for clamping the screen frame is slidably connected to the swing frame via a slide rod. Four sets of screen frames are provided below the clamping cover. Each set of screen frames contains multiple screen frame units, and the screen density inside each set of screen frames is arranged in a manner from large to small from top to bottom.

[0021] By adopting the above technical solution, a swing frame is set above the swing plate, and a clamping cover is slidably connected to the swing frame via a slide rod. Four sets of screen frames are set below the clamping cover, and the screen density inside each set of screen frames is set from large to small from top to bottom, realizing multi-stage screening function, which can meet the screening needs of materials of different particle sizes and improve screening efficiency and accuracy.

[0022] Furthermore, the soundproof cover is disposed on the outside of the vibrating screen equipment. The soundproof cover includes a cover body, and a cover door is rotatably connected to the outer surface of the cover body via a hinge. A handle is provided on the outer surface of the cover door.

[0023] By adopting the above technical solution, the soundproof enclosure is installed on the outside of the vibrating screen equipment, which can effectively reduce the noise generated during equipment operation and reduce the impact on the external environment. The enclosure body is connected to the enclosure door by a hinge, and the enclosure door is equipped with a handle, which makes it convenient for staff to open the enclosure door to maintain and repair the equipment, improving the ease of operation and safety of the equipment.

[0024] In summary, the present invention has the following main advantages:

[0025] This invention comprises a monitoring mechanism, a first mounting bracket, an infrared temperature sensor, a maintenance mechanism, a second mounting bracket, an atomizing sprayer, a nozzle, and an oil guide pipe. The infrared temperature sensor in the monitoring mechanism can monitor the temperature at the connection between the eccentric wheel and the push rod in real time. This design can detect situations where the temperature rises due to insufficient lubrication caused by prolonged exposure to large forces and frequent vibrations. When the temperature exceeds a set threshold, a signal is effectively sent to an external control terminal, which then activates two sets of maintenance mechanisms. Once activated, these mechanisms directly spray lubricating oil in atomized form onto the connection between the eccentric wheel and the push rod. This atomized lubrication method allows the lubricating oil to be more evenly distributed across all corners of the connection, improving lubrication and effectively solving the problems of excessive temperature and accelerated wear caused by insufficient lubrication.

[0026] This utility model, by setting an arc-shaped baffle, prevents some of the lubricating oil from splashing onto the connection between the eccentric wheel and the push rod due to the atomizing sprayer of the maintenance mechanism spraying atomized lubricating oil. The arc-shaped baffle intercepts the splashed lubricating oil, so that the lubricating oil is mainly concentrated near the baffle, forming a relatively independent lubrication area. This avoids polluting the working environment and causing inconvenience to operation and maintenance. Attached Figure Description

[0027] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0028] Figure 2 This is a partial three-dimensional structural diagram of the vibrating screen equipment of this utility model;

[0029] Figure 3 This is a partial cross-sectional three-dimensional structural diagram of the vibrating screen equipment of this utility model;

[0030] Figure 4 This utility model Figure 3 Enlarged structural diagram at point A in the middle.

[0031] In the diagram: 1. Soundproof enclosure; 101. Enclosure body; 102. Enclosure door; 103. Handle; 104. Viewing window; 2. Vibrating screen equipment; 201. Mounting frame; 202. Motor; 203. Drive wheel; 204. Driven wheel; 205. Belt; 206. Transmission rod; 207. Eccentric wheel; 208. Swing disc; 209. Screen frame; 210. Clamping cover; 211. Swing frame; 212. Bearing frame; 3. Monitoring mechanism; 301. First mounting frame; 302. Infrared temperature sensor; 4. Maintenance mechanism; 401. Second mounting frame; 402. Atomizing sprayer; 403. Nozzle; 404. Oil guide pipe; 5. Arc-shaped baffle. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present utility model, and should not be construed as limiting the present utility model.

[0033] Example 1:

[0034] A type of impact vibrating screen with a multi-stage screening structure, such as Figures 1-4 As shown, it includes a soundproof cover 1 and a vibrating screen device 2. The vibrating screen device 2 includes a mounting frame 201 and an eccentric wheel 207. A swing disk 208 is mounted on the top of the eccentric wheel 207 via a top rod. A bearing frame 212 is provided between the eccentric wheel 207 and the swing disk 208. The bearing inside the bearing frame 212 is connected to the transmission rod 206 at the bottom of the eccentric wheel 207. A monitoring mechanism 3 and a maintenance mechanism 4 are provided on one side of the top of the bearing frame 212. An arc-shaped baffle 5 is provided on the other side of the top of the bearing frame 212.

[0035] The monitoring mechanism 3 includes a first mounting frame 301, which is connected to the bearing frame 212 by bolts. An infrared temperature sensor 302 for monitoring the connection between the eccentric wheel 207 and the top rod is installed on the first mounting frame 301. Two sets of maintenance mechanisms 4 for maintaining the connection between the eccentric wheel 207 and the top rod are installed on both sides of the monitoring mechanism 3. By setting the soundproof cover 1 and the overall structure of the vibrating screen 2, in which the vibrating screen 2 includes the mounting frame 201, eccentric wheel 207, swing plate 208, bearing frame 212 and other components, and setting the monitoring mechanism 3 and maintenance mechanism 4 on one side of the top of the bearing frame 212, and the arc-shaped baffle 5 on the other side, the equipment structure is compact and the functional areas are clearly defined. The monitoring mechanism 3 can monitor the connection between the eccentric wheel 207 and the top rod in real time, the maintenance mechanism 4 facilitates maintenance of this part, and the arc-shaped baffle 5 can effectively prevent lubricating oil from splashing and contaminating other parts, thereby improving the reliability and stability of the equipment and ensuring the normal operation of the multi-stage screening structure.

[0036] See Figure 1 , Figure 2 , Figure 3 , Figure 4 The two sets of maintenance mechanisms 4 include a second mounting bracket 401, which is detachably connected to the bearing bracket 212 by bolts. This detachable design greatly facilitates the installation, disassembly, and maintenance of the maintenance mechanism 4. When the maintenance mechanism 4 malfunctions or requires regular maintenance, the staff can quickly remove it from the bearing bracket 212 for repair or replacement of parts without having to disassemble the entire vibrating screen on a large scale, which reduces the difficulty and cost of maintenance and improves the maintainability of the equipment.

[0037] See Figure 1 , Figure 2 , Figure 3 , Figure 4 The second mounting bracket 401 is equipped with an atomizing sprayer 402, and one end of the atomizing sprayer 402 is equipped with a nozzle 403 facing the connection between the eccentric wheel 207 and the top rod. This precise positioning design allows the lubricating oil to be sprayed directly onto the critical parts that need lubrication in the form of atomization. Compared with traditional lubrication methods, atomized lubrication can make the lubricating oil cover the friction surface more evenly, reduce friction and wear between parts, improve the lubrication effect, and extend the service life of the equipment.

[0038] See Figure 1 , Figure 2 , Figure 3 , Figure 4 The other end of the atomizing sprayer 402 is provided with an oil guide pipe 404, which passes through the soundproof cover 1 and is connected to an external lubricating oil pump. The atomizing sprayer 402 is connected to the external lubricating oil pump through the oil guide pipe 404, and the oil guide pipe 404 passes through the soundproof cover 1. This design realizes the external centralized supply and control of lubricating oil. The external lubricating oil pump can accurately control the flow and pressure of lubricating oil, ensuring the stable operation of the lubrication system. At the same time, it facilitates centralized management and replacement of lubricating oil, avoids the inconvenience of operating inside the equipment, and improves the automation level and operating efficiency of the equipment.

[0039] See Figure 1 , Figure 2 , Figure 3 , Figure 4 The two sets of maintenance mechanisms 4 are mirror images of the central axis of the monitoring mechanism 3. This symmetrical layout makes the maintenance work at the connection between the eccentric wheel 207 and the push rod more uniform and comprehensive. No matter which direction the eccentric wheel 207 rotates, the maintenance mechanism 4 can ensure timely lubrication and maintenance, avoiding problems caused by insufficient maintenance on one side and improving the overall performance and reliability of the equipment.

[0040] Example 2:

[0041] See Figure 1 , Figure 2 , Figure 3 , Figure 4The arc-shaped baffle 5 is used to block the atomized lubricating oil. The arc-shaped baffle 5 is detachably connected to the bearing bracket 212 by bolts. When the atomizing sprayer 402 is working, the arc-shaped baffle 5 can effectively prevent the lubricating oil from splashing onto other parts of the vibrating screen equipment 2, such as the transmission rod 206 and the belt 205. This not only avoids the impact of lubricating oil on the normal operation of the equipment, but also reduces the pollution of the working environment by lubricating oil, and improves the cleanliness and safety of the equipment.

[0042] See Figure 1 , Figure 2 , Figure 3 , Figure 4 A motor 202 is installed on one side of the mounting frame 201. A drive wheel 203 is installed at the output end of the motor 202. A driven wheel 204 is installed at the bottom of the transmission rod 206. A belt 205 for transmission is sleeved between the drive wheel 203 and the driven wheel 204. The diameter of the driven wheel 204 is larger than that of the drive wheel 203. The motor 202 is installed on one side of the mounting frame 201. Through the transmission method of the drive wheel 203, the driven wheel 204 and the belt 205, and the fact that the diameter of the driven wheel 204 is larger than that of the drive wheel 203, the effect of speed reduction and torque increase is achieved. This transmission design allows the transmission rod 206 to obtain sufficient torque to drive the eccentric wheel 207 to make eccentric movements, ensuring the normal operation and efficient screening of the vibrating screen 2. At the same time, the belt 205 transmission has the function of buffering and shock absorption, reducing the impact on the equipment when the motor 202 starts and stops, and extending the service life of the equipment.

[0043] See Figure 1 , Figure 2 , Figure 3 , Figure 4 A swing frame 211 is provided above the swing disk 208, and a clamping cover 210 for holding the screen frame 209 is slidably connected to the swing frame 211 via a slide rod. Four sets of screen frames 209 are provided below the clamping cover 210. Each set of screen frames 209 contains multiple screen frame units, and the screen density inside each set of screen frames 209 is set from large to small from top to bottom. The swing frame 211 is provided above the swing disk 208, and the clamping cover 210 is slidably connected to the swing frame 211 via a slide rod. Four sets of screen frames 209 are provided below the clamping cover 210, and the screen density inside each set of screen frames 209 is set from large to small from top to bottom. This multi-stage screening structure can meet the screening requirements of materials of different particle sizes, improve screening efficiency and accuracy. When the material passes through the multi-stage screen frames 209, it will be screened by screens of different densities in sequence, thereby achieving a finer grading effect.

[0044] See Figure 1 , Figure 2 , Figure 3 , Figure 4The soundproof cover 1 is located outside the vibrating screen equipment 2. The soundproof cover 1 includes a cover body 101. The outer surface of the cover body 101 is rotatably connected to the cover door 102 via a hinge. The outer surface of the cover door 102 is provided with a handle 103. The soundproof cover 1 can effectively reduce the noise generated during the operation of the equipment and reduce the impact on the external environment. The hinged design of the cover door 102 and the handle 103 makes it convenient for staff to open the cover door 102 to maintain and repair the equipment, improving the operational convenience and safety of the equipment.

[0045] The implementation principle of this embodiment is as follows: First, the motor 202 starts, and the driving wheel 203 at its output end drives the driven wheel 204 at the bottom of the transmission rod 206 to rotate through the belt 205, thereby causing the transmission rod 206 to rotate. The transmission rod 206 drives the eccentric wheel 207 to make eccentric motion. The eccentric wheel 207 causes the swing disk 208 to swing back and forth through the push rod. The swing frame 211 on the swing disk 208 drives the clamping cover 210 and the four sets of screen frames 209 below to perform vibration screening, thereby realizing the multi-stage screening function.

[0046] During the operation of the vibrating screen, the infrared temperature sensor 302 in the monitoring mechanism 3 monitors the temperature of the connection between the eccentric wheel 207 and the top rod in real time. When the temperature is abnormal, the staff can be notified in time. At the same time, the atomizing sprayer 402 in the maintenance mechanism 4 is connected to the external lubricating oil pump through the oil guide pipe 404. The lubricating oil pump delivers lubricating oil to the atomizing sprayer 402, which sprays the lubricating oil in the form of atomization onto the connection between the eccentric wheel 207 and the top rod through the nozzle 403 for lubrication.

[0047] The arc-shaped baffle 5 is located on the other side of the top of the bearing frame 212. When the atomized lubricating oil is sprayed, it can effectively block the splashed lubricating oil, so that the lubricating oil is mainly concentrated near the baffle, preventing it from contaminating other parts of the vibrating screen equipment 2, such as the transmission rod 206 and belt 205. It also prevents the lubricating oil from dripping onto the ground or operating table, ensuring the normal operation of the equipment and a clean working environment. The soundproof cover 1 plays a role in reducing the noise generated when the vibrating screen is running, reducing the impact on the external environment.

[0048] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.

Claims

1. A vibrating screen with a multi-stage screening structure, characterized in that: The device includes a soundproof cover (1) and a vibrating screen device (2). The vibrating screen device (2) includes a mounting frame (201) and an eccentric wheel (207). The top of the eccentric wheel (207) is mounted with a swing disk (208) via a top rod. A bearing frame (212) is provided between the eccentric wheel (207) and the swing disk (208). The bearing inside the bearing frame (212) is connected to the transmission rod (206) at the bottom of the eccentric wheel (207). A monitoring mechanism (3) and a maintenance mechanism (4) are provided on one side of the top of the bearing frame (212). An arc-shaped baffle (5) is provided on the other side of the top of the bearing frame (212). The monitoring mechanism (3) includes a first mounting frame (301), which is connected to the bearing frame (212) by bolts. The first mounting frame (301) is equipped with an infrared temperature sensor (302) for monitoring the connection between the eccentric wheel (207) and the push rod. Two sets of maintenance mechanisms (4) for maintaining the connection between the eccentric wheel (207) and the push rod are provided on both sides of the monitoring mechanism (3).

2. The impact vibrating screen with a multi-stage screening structure according to claim 1, characterized in that: The two sets of maintenance mechanisms (4) include a second mounting bracket (401), and the second mounting bracket (401) is detachably connected to the bearing bracket (212) by bolts.

3. The impact vibrating screen with a multi-stage screening structure according to claim 2, characterized in that: The second mounting bracket (401) is provided with an atomizing sprayer (402), and one end of the atomizing sprayer (402) is provided with a nozzle (403) facing the connection between the eccentric wheel (207) and the top rod.

4. The impact vibrating screen with a multi-stage screening structure according to claim 3, characterized in that: The other end of the atomizing sprayer (402) is provided with an oil guide pipe (404), which passes through the soundproof cover (1) and is connected to an external lubricating oil pump.

5. The impact vibrating screen with a multi-stage screening structure according to claim 1, characterized in that: The two sets of maintenance mechanisms (4) are mirror images of the monitoring mechanism (3).

6. The impact vibrating screen with a multi-stage screening structure according to claim 1, characterized in that: The arc-shaped baffle (5) is used to block the atomized lubricating oil, and the arc-shaped baffle (5) is detachably connected to the bearing bracket (212) by bolts.

7. The impact vibrating screen with a multi-stage screening structure according to claim 1, characterized in that: A motor (202) is provided on one side of the mounting bracket (201). A drive wheel (203) is provided at the output end of the motor (202). A driven wheel (204) is provided at the bottom of the transmission rod (206). A belt (205) for transmission is sleeved between the drive wheel (203) and the driven wheel (204). The diameter of the driven wheel (204) is larger than that of the drive wheel (203).

8. The impact vibrating screen with a multi-stage screening structure according to claim 1, characterized in that: A swing frame (211) is provided above the swing disk (208), and a clamping cover (210) for clamping the screen frame (209) is slidably connected to the swing frame (211) via a slide rod. Four sets of screen frames (209) are provided below the clamping cover (210). Each set of screen frames (209) contains multiple screen frame units, and the screen density inside each set of screen frames (209) is arranged from large to small from top to bottom.

9. The impact vibrating screen with a multi-stage screening structure according to claim 1, characterized in that: The soundproof cover (1) is located outside the vibrating screen equipment (2). The soundproof cover (1) includes a cover body (101). The outer surface of the cover body (101) is rotatably connected to a door (102) via a hinge. The outer surface of the door (102) is provided with a handle (103).

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