A dust removal linear vibrating screen
By setting the peaks and troughs on the screen of the linear vibrating screen and controlling the screen status using the adjustment mechanism, the problem of uneven screening of the linear vibrating screen is solved, and more efficient material screening is achieved.
Patent Information
- Application Number
- CN202411932668.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-26
- Publication Date
- 2025-03-14
- Estimated Expiration
- 2044-12-26
AI Technical Summary
The existing linear vibrating screens have single movement directions when screening materials, resulting in uneven screening and poor effect.
A dust removal linear vibrating screen is designed, with multiple peaks and troughs on the screen. The adjustment mechanism controls the state transition of the screen through visual sensors and adjustment components, increases the contact area between the screen and the material, changes the direction of material movement, and improves the screening efficiency.
By increasing the contact area of the screen and changing the moving direction of the material, more uniform dispersion of the material and better screening effect are achieved, and screening efficiency is improved.
Smart Images
Figure CN119346418B_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of vibrating screens, in particular to a dust removal type linear vibrating screen. Background Art
[0002] Linear vibrating screen generally refers to linear screen, which uses vibration motor excitation as vibration source to make the material be thrown up on the screen and move forward in a straight line. The material enters the feed port of the screening machine evenly from the feeder, passes through multiple layers of screens to produce several specifications of oversize and undersize materials, which are discharged from their respective outlets.
[0003] When the existing linear vibrating screen is screening materials, the moving direction of the materials on the screen is relatively single. When the amount of materials at a certain position is large, it is easy to form accumulation in the forward direction of the materials, resulting in a shortened contact time between the materials and the screen, causing uneven material screening. Summary of the invention
[0004] Based on this, it is necessary to provide a dust removal linear vibrating screen to address the problem that the current traditional linear screens screen materials unevenly, resulting in poor screening effect.
[0005] The above purpose is achieved through the following technical solutions:
[0006] A dust removal linear vibrating screen comprises a bracket, a shell, a screen and an adjusting mechanism, wherein the bracket is fixedly arranged, the shell is movably arranged on the bracket, the screen is arranged in the shell, a first discharge port is arranged on the shell, the first discharge port is located below the screen, the material moves toward the first discharge port on the screen, a plurality of crests and troughs are arranged on the screen, the direction of the crest line is the first direction, the direction of the wave direction line is the second direction, the wave height of the screen is variable, the wave height extends along a third direction, and the first direction, the second direction and the third direction are perpendicular to each other.
[0007] The screen has a first state and a second state. In the first state, two adjacent wave peaks move in opposite directions along a third direction. In the second state, one of the wave peaks is closer to the inner top wall of the shell relative to the other wave peaks, and the distance between the other wave peaks and the inner top wall of the shell increases successively as the distance between the other wave peaks and the wave peak increases.
[0008] The adjustment mechanism includes a visual sensor and an adjustment component. The visual sensor is arranged on the outer shell to monitor the content of the material in the trough. The adjustment component is located below the screen to control the transition between the first state and the second state of the screen according to the data collected by the visual sensor.
[0009] Preferably, the screen has toughness, and the aperture of the screen holes on the screen remains unchanged, and both side surfaces of the screen extending along the first direction are connected to the side walls of the shell.
[0010] Preferably, there are multiple adjustment components, each corresponding to a wave crest, each adjustment component includes a rotating shaft, a first cam, a second cam and a driving motor, the rotating shaft is rotatably arranged on the outer shell, and the axis of the rotating shaft extends along the first direction, the rotating shaft is located directly below one of the wave crests, the first cam and the second cam are fixedly mounted on the rotating shaft, and the first cam and the second cam can respectively abut against the screen, the driving motor is arranged on the outer shell, and the output shaft of the driving motor is connected to the rotating shaft.
[0011] Preferably, the height of the screen lifted by the first cam is greater than the height of the screen lifted by the second cam, and the line connecting the point on the first cam farthest from the rotating shaft and the rotating shaft is not coaxial with the line connecting the point on the second cam farthest from the rotating shaft and the rotating shaft, and when the screen is in the first state, the heights of the screen lifted by the second cams on two adjacent rotating shafts are alternately distributed; when the screen is in the second state, the second cam on one of the rotating shafts abuts against the screen, and the rotating shaft is assumed to be the first shaft, and the height of the screen lifted by the first cam or the second cam on the first shaft is higher than the height of the screen lifted by other rotating shafts, and the height of the screen lifted by the rotating shaft farther from the first axis is lower.
[0012] Preferably, the screen divides the interior of the shell into a first layer and a second layer, a telescopic rod is provided in the first layer, one end of the telescopic rod is fixedly mounted on the inner top wall of the shell, and the other end of the telescopic rod abuts against the trough of the screen, and a support rod is provided in the second layer, the support rod extends along the second direction, and both ends of the support rod are fixedly mounted on the shell, and the screen is located between the telescopic rod and the support rod.
[0013] Preferably, a rotating wheel is installed at one end of the telescopic rod close to the screen, the rotating wheel is rotatably connected to the telescopic rod, and the rotating axis of the rotating wheel extends along the first direction.
[0014] Preferably, an air collecting hood is provided on the top of the shell, a dust collecting device is provided on the bracket, the air collecting hood and the dust collecting device are connected, and the dust collecting device collects dust generated inside the shell through the air collecting hood.
[0015] Preferably, a vibration motor is provided on the outer shell, which is used to provide rotational power for the screen. Two sets of connecting frames are provided between the bracket and the outer shell, and the two ends of the two sets of connecting frames are respectively connected to the bracket and the outer shell. The two sets of connecting frames are arranged along the first direction, and the connecting frames can move along the third direction.
[0016] Preferably, a feed port is provided on the outer shell, and the feed port is located above the screen. The projection of the line between the feed port and the first discharge port on the screen extends along the first direction. There is a spacing between the feed port and the first discharge port, and one end of the screen close to the feed port is higher than the other end of the screen close to the first discharge port.
[0017] Preferably, a second discharge port is provided on the shell, and the second discharge port is used to discharge the material in the second layer.
[0018] The beneficial effects of the present invention are as follows: the screen is provided with crests and troughs, which increases the contact area between the screen and the material in the shell and improves the material screening efficiency; when the material falls onto the screen between the crests and the troughs, the screen can provide the material with a component force in a second direction, thereby changing the moving direction of the material on the screen and making the material more evenly dispersed on the screen; the screens on both sides of a trough provide the material with a force to move toward each other, so that the material can collide during the movement, which has a better breaking up effect on the material bonded together and enables the material to be better screened.
[0019] When the screen is in the first state, the distances between two adjacent peaks and the trough between them are different. The screen area on one side of the trough is larger than that on the other side. When the material falls into the trough, it can be better moved to the adjacent trough through the action of the screen, thereby improving the uniformity of the material above the screen; in the second state, the screen arranges multiple peaks in a stepped manner, which speeds up the dispersion of the material and improves the screening effect. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 A schematic structural diagram of a dust removal linear vibrating screen provided by an embodiment of the present invention;
[0021] Figure 2 A top view of a dust removal linear vibrating screen provided by an embodiment of the present invention;
[0022] Figure 3 for Figure 2 Sectional view along AA direction;
[0023] Figure 4 for Figure 3 Enlarged view of point C in the middle;
[0024] Figure 5 for Figure 2 Cross-sectional view along the BB direction;
[0025] Figure 6 for Figure 5 The enlarged view of point D in the middle;
[0026] Figure 7 A schematic diagram of the structure of an adjustment assembly of a dust removal type linear vibrating screen provided by an embodiment of the present invention;
[0027] Figure 8 A schematic diagram of the structure of the screen mesh and the shell of a dust removal linear vibrating screen provided by an embodiment of the present invention;
[0028] Fig. 9 A left side view of a screen of a dust removal linear vibrating screen provided in an embodiment of the present invention.
[0029] Among them: 100, bracket; 101, shell; 102, screen; 103, first discharge port; 104, rotating shaft; 105, first cam; 106, second cam; 107, driving motor; 108, telescopic rod; 109, rotating wheel; 110, supporting rod; 111, air collecting hood; 112, vibration motor; 113, first connecting rod; 114, second connecting rod; 115, second discharge port; 116, feeding port. DETAILED DESCRIPTION
[0030] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below through embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.
[0031] The serial numbers assigned to the components herein, such as "first", "second", etc., are only used to distinguish the objects described and do not have any order or technical meaning. The "connection" and "coupling" mentioned in the present invention, unless otherwise specified, include direct and indirect connections (couplings). In the description of the present invention, it should be understood that the orientations or positional relationships indicated by the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc. are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.
[0032] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.
[0033] like Figures 1 to 9As shown, a dust removal linear vibrating screen provided by an embodiment of the present invention includes a bracket 100, a shell 101, a screen 102 and an adjustment mechanism, wherein the bracket 100 is fixedly arranged, the shell 101 is movably arranged on the bracket 100, the screen 102 is arranged in the shell 101, a first discharge port 103 is arranged on the shell 101, and the first discharge port 103 is located below the screen 102. The material moves toward the first discharge port 103 on the screen 102, and a plurality of crests and troughs are arranged on the screen 102, and the direction of the crest line is the first direction (i.e. Fig. 9 The direction of the wave direction line is the second direction (i.e. Fig. 9 The wave height of the screen 102 is variable, and the wave height is along the third direction ( Fig. 9 The first direction, the second direction and the third direction extend in pairs.
[0034] The screen 102 has a first state and a second state. In the first state, two adjacent wave peaks move in opposite directions along a third direction. In the second state, one of the wave peaks is closer to the inner top wall of the shell relative to the other wave peaks, and the distance between the other wave peaks and the inner top wall of the shell increases successively as the distance between the wave peak and the inner top wall increases.
[0035] The adjustment mechanism includes a visual sensor and an adjustment component. The visual sensor is arranged on the housing 101 and is used to monitor the content of the material in the trough. The adjustment component is located below the screen 102 and is used to control the transition of the screen 102 between the first state and the second state according to the data collected by the visual sensor. The visual sensor transmits the collected data to the adjustment component. When the material on the screen 102 is unevenly distributed, the adjustment component raises the peak on one side of the trough with the most material, and takes the peak as the dividing point (the screen 102 is divided into two parts, and the material content on the two parts of the screen 102 is different, and the trough is located on a part of the screen 102 with less material) and the peaks on the same side of the trough are successively reduced in height compared with the peak, so that the material can move better from the trough to other troughs, so that the material is dispersed more evenly.
[0036] The material is poured onto the screen 102, which is provided with crests and troughs, so that the contact area between the screen 102 and the material in the housing 101 is increased, and the material screening efficiency is improved. When the material falls onto the screen 102 between the crests and the troughs, the screen 102 can provide a component force in the second direction for the material, and change the moving direction of the material on the screen 102, so that the material can be dispersed more evenly on the screen 102; the screens 102 on both sides of a trough provide the material with a force to move toward each other, so that the material can collide during the movement, which has a better effect of breaking up the material stuck together, so that the material can be better screened.
[0037] When the screen 102 is in the first state, the distances between two adjacent peaks and the trough between them are different. The area of the screen 102 on one side of the trough is larger than that on the other side. When the material falls into the trough, it can be better moved to the adjacent trough through the action of the screen 102, thereby improving the uniformity of the material above the screen 102; in the second state, the screen 102 arranges multiple peaks in a stepped manner, which speeds up the dispersion of the material and improves the screening effect.
[0038] In this embodiment, the screen 102 is tough, and the aperture of the screen holes on the screen 102 remains unchanged. The two side surfaces of the screen 102 extending along the first direction are connected to the side walls of the outer shell 101. The screen 102 has peaks and troughs, and the strength of the screen 102 in the first direction is greater than its strength in the second direction. The material can move on the screen 102 along the first direction to the position of the first discharge port 103, and the size of the screen holes on the screen 102 does not change with the movement of the screen 102 in the second direction and the first direction, thereby avoiding affecting the screening of the material due to the change of the screen holes.
[0039] In this embodiment, there are multiple adjustment components, each of which corresponds to a wave crest. Each adjustment component includes a rotating shaft 104, a first cam 105, a second cam 106 and a driving motor 107. The rotating shaft 104 is rotatably arranged on the housing 101, and the axis of the rotating shaft 104 extends along the first direction. The rotating shaft 104 is located directly below one of the wave crests. The first cam 105 and the second cam 106 are fixedly installed on the rotating shaft 104, and the first cam 105 and the second cam 106 can respectively abut against the screen 102. The driving motor 107 is arranged on the housing 101, and The output shaft of the driving motor 107 is connected to the rotating shaft 104. The driving motor 107 can drive the rotating shaft 104 to rotate. The first cam 105 and the second cam 106 can lift the screen 102, change the wave height of the screen 102, increase the distance that the material moves along the second direction on the screen 102, increase the probability of the materials colliding with each other, and then alleviate the situation where the materials cannot be screened due to sticking together. The first cam 105 and the second cam 106 on the two adjacent rotating shafts 104 contact the screen 102 at different times, so that the heights of the multiple wave peaks on the screen 102 are different.
[0040] A control panel is provided on the housing 101, and a plurality of visual sensors are provided, each visual sensor corresponds to a trough, and each drive motor 107 is electrically connected to each visual sensor and the control panel, and each drive motor 107 can work independently, and each visual sensor transmits the collected data to the control panel, and the control panel controls the plurality of drive motors 107 according to the received data so that the screen 102 is in the first state or the second state.
[0041] In this embodiment, the height of the screen 102 lifted by the first cam 105 is greater than the height of the screen 102 lifted by the second cam 106, and the line between the point on the first cam 105 farthest from the rotating shaft 104 and the rotating shaft 104 is not coaxial with the line between the point on the second cam 106 farthest from the rotating shaft 104 and the rotating shaft 104, that is, the first cam 105 and the second cam 106 on the same rotating shaft 104 can push the screen 102 respectively, and when the screen 102 is in the first state, the second cams 106 on the two adjacent rotating shafts 104 lift the screen 102 to a height of The materials in two adjacent troughs can be exchanged with each other, and the materials are more evenly distributed on the screen 102; when the screen 102 is in the second state, the second cam 106 on one of the rotating shafts 104 abuts against the screen 102, and the rotating shaft 104 is assumed to be the first axis, and the height of the screen 102 lifted by the first cam 105 or the second cam 106 on the first axis is higher than the height of the screen lifted by other rotating shafts 104, and the farther the rotating shaft 104 is from the first axis, the lower the height of the screen 102 lifted by the rotating shaft 104, and the material is dispersed faster on the screen 102 along the second direction.
[0042] In this embodiment, the screen 102 divides the interior of the shell 101 into a first layer and a second layer. A telescopic rod 108 is provided in the first layer. One end of the telescopic rod 108 is fixedly mounted on the inner top wall of the shell 101, and the other end of the telescopic rod 108 abuts against the trough of the screen 102. A compression spring is provided inside the telescopic rod 108, and the telescopic rod 108 will be resisted by the compression spring when compressed. A support rod 110 is provided in the second layer. The support rod 110 extends along the second direction, and both ends of the support rod 110 are fixedly mounted on the shell 101. The screen 102 is located between the telescopic rod 108 and the support rod 110. The telescopic rod 108 can push the trough of the screen 102 to contact the support rod 110; when the trough cannot be connected to the support rod 110, the position of the trough changes, and the compression spring inside the telescopic rod 108 will be compressed, thereby avoiding damage to the screen 102.
[0043] In this embodiment, a rotating wheel 109 is installed at one end of the telescopic rod 108 close to the screen 102. The rotating wheel 109 is rotatably connected to the telescopic rod 108, and the rotation axis of the rotating wheel 109 extends along a first direction. When the wave height of the screen 102 changes, the screen 102 slidingly connected to the rotating wheel 109 moves along a second direction. When the screen 102 moves, it drives the rotating wheel 109 to rotate around its own axis, which can reduce the friction between the rotating wheel 109 and the screen 102, improve the smoothness of the movement of the screen 102, and extend the service life of the screen 102.
[0044] In this embodiment, an air collecting hood 111 is provided on the top of the shell 101, and a dust collecting device is provided on the bracket 100. The air collecting hood 111 is connected to the dust collecting device. The dust collecting device collects dust generated inside the shell through the air collecting hood 111. Specifically, a plurality of air collecting hoods 111 are provided, and the plurality of air collecting hoods 111 are evenly distributed on the upper surface of the shell, and the plurality of air collecting hoods 111 are interconnected, and the air collecting hood 111 and the dust collecting device are connected through a pipe.
[0045] In this embodiment, a vibration motor 112 is provided on the shell 101, and the vibration motor 112 is used to provide rotational power for the screen 102. When the vibration motor 112 rotates, vibration will be generated, and the screen 102 will be driven to vibrate through the shell 101. Two groups of connecting frames are provided between the bracket 100 and the shell 101. The two ends of the two groups of connecting frames are respectively connected to the bracket 100 and the shell 101. The two groups of connecting frames are arranged along a first direction, and the connecting frames can move along a third direction. Each group of connecting frames includes a plurality of first connecting rods 113 and a plurality of second connecting rods 114, each first connecting rod 113 corresponds to a second connecting rod 114, and the first connecting rod 113 is rotatably connected to the second connecting rod 114. The first connecting rod 113 and the second connecting rod 114 are connected by bolts, and the bolts can limit the angle between the first connecting rod 113 and the second connecting rod 114. One end of each first connecting rod 113 away from the second connecting rod 114 is hinged to the bracket 100, and one end of each second connecting rod 114 away from the first connecting rod 113 is hinged to the shell 101.
[0046] In this embodiment, a feed port 116 is provided on the outer shell 101, and the feed port 116 is located above the screen 102. The projection of the line between the feed port 116 and the first discharge port 103 on the screen extends along the first direction. A spacing is provided between the feed port 116 and the first discharge port 103. The end of the screen 102 close to the feed port 116 is higher than the end of the screen 102 close to the first discharge port 103. After the material falls onto the screen 102 from the feed port 116, the material moves to the position of the first discharge port 103 along the inclination direction of the screen 102. By adjusting the angle between the first connecting rod 113 and the second connecting rod 114, the inclination degree of the screen 102 relative to the horizontal plane can be changed, thereby controlling the speed at which the material moves on the screen 102 to the first discharge port 103.
[0047] In this embodiment, a second discharge port 115 is provided on the outer shell 101, and the second discharge port 115 is used to discharge the material in the second layer. The second discharge port 115 is located below the first discharge port 103. The material falling into the second layer after being screened by the screen 102 will move to the second discharge port 115.
[0048] The working principle and working method of a dust removal linear vibrating screen provided in this embodiment are as follows:
[0049] First, tighten the bolts, and then adjust the angle between the first connecting rod 113 and the second connecting rod 114 so that the screen 102 can screen the material at a suitable inclination angle, then start the vibration motor 112 and multiple drive motors 107, the vibration motor 112 drives the housing 101 to vibrate, and each drive motor 107 drives the corresponding rotating shaft 104 to reciprocate, and the rotating shaft 104 drives the first cam 105 and the second cam 106 to swing when rotating, and then pour the material into the housing 101 from the feed port 116, the material falls onto the screen 102, and after being filtered by the screen 102, the materials in the first layer and the second layer move to the first discharge port 103 and the second discharge port 115 respectively.
[0050] When the material falls onto the screen 102, it is monitored by the visual sensor. If the material content in each trough on the screen 102 is relatively uniform, the rotating shaft 104 drives the second cam 106 to abut against the screen 102. After the second cams 106 on multiple rotating shafts 104 cooperate with each other, the screen 102 is in the first state, and the two adjacent peaks on the screen 102 rise and fall alternately. The materials in the trough move along the second direction under the action of the screen 102 and collide with each other, so that the adhered materials can be separated, thereby improving the screening quality. When the wave height between the peaks and troughs of the screen 102 changes, the screen 102 at the trough position drives the runner 109 to rotate, and the screen 102 performs adaptive adjustment. At the same time, the movement of the screen 102 can also drive the movement of the material at the trough position, thereby further improving the screening quality of the material.
[0051] If one of the visual sensors detects that the amount of material in a trough is greater than the amount of material in other troughs, the control panel identifies the average content of material on the screens 102 on both sides of the trough based on the data monitored by all the visual sensors. If the average content of material on the screen 102 on one side of the trough is higher, then the adjacent rotating shaft 104 on this side of the trough is the first shaft, the first shaft rotating rod, and the first cam 105 thereon abuts against the screen 102, and the height of the corresponding peak is increased. The rotating shaft 104 on one side of the first shaft where the trough is located rotates by a corresponding angle driven by their respective corresponding drive motors 107, so that the height of the peak corresponding to each rotating shaft 104 gradually decreases from the first shaft, and the material in the trough is dispersed to the screen 102 on one side of the first shaft, thereby improving the screening effect.
[0052] The materials still on the screen 102 after screening are discharged through the first discharge port 103 , and the materials screened by the screen net and falling to the second layer are discharged through the second discharge port 115 .
[0053] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0054] The above-described embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the attached claims.
Claims
1. A dust removal linear vibrating screen, characterized in that: include: A bracket, a shell, a screen and an adjustment mechanism, wherein the bracket is fixedly arranged, the shell is movably arranged on the bracket, the screen is arranged in the shell, a first discharge port is arranged on the shell, the first discharge port is located below the screen, the material moves toward the first discharge port on the screen, a plurality of wave crests and wave troughs are arranged on the screen, the direction of the wave crest line is the first direction, the direction of the wave direction line is the second direction, the wave height of the screen is variable, the wave height extends along the third direction, and the first direction, the second direction and the third direction are perpendicular to each other; The screen has a first state and a second state. In the first state, two adjacent wave peaks move in opposite directions along a third direction. In the second state, one of the wave crests is closer to the inner top wall of the shell relative to the other wave crests, and the distances between the other wave crests and the inner top wall of the shell increase in sequence as the distances between the other wave crests and the wave crest increase; The adjustment mechanism includes a visual sensor and an adjustment component. The visual sensor is arranged on the outer shell to monitor the content of the material in the trough. The adjustment component is located below the screen to control the transition between the first state and the second state of the screen according to the data collected by the visual sensor.
2. A dust removal linear vibrating screen according to claim 1, characterized in that: The screen has toughness, and the aperture of the screen holes on the screen remains unchanged. Both sides of the screen extending along the first direction are connected to the side walls of the shell.
3. A dust removal linear vibrating screen according to claim 1, characterized in that: There are multiple adjustment components, each corresponding to a wave crest, and each adjustment component includes a rotating shaft, a first cam, a second cam and a driving motor. The rotating shaft is rotatably arranged on the outer shell, and the axis of the rotating shaft extends along the first direction. The rotating shaft is located directly below one of the wave crests. The first cam and the second cam are fixedly mounted on the rotating shaft, and the first cam and the second cam can respectively abut against the screen. The driving motor is arranged on the outer shell, and the output shaft of the driving motor is connected to the rotating shaft.
4. A dust removal linear vibrating screen according to claim 3, characterized in that: The height of the screen lifted by the first cam is greater than the height of the screen lifted by the second cam, and the line connecting the point on the first cam farthest from the rotating shaft and the rotating shaft is not coaxial with the line connecting the point on the second cam farthest from the rotating shaft and the rotating shaft. When the screen is in the first state, the heights of the screen lifted by the second cams on two adjacent rotating shafts are alternately distributed; when the screen is in the second state, the second cam on one of the rotating shafts abuts against the screen, and the rotating shaft is assumed to be the first shaft, and the height of the screen lifted by the first cam or the second cam on the first shaft is higher than the height of the screen lifted by other rotating shafts, and the height of the screen lifted by the rotating shaft farther from the first axis is lower.
5. The dust removal linear vibrating screen according to claim 1, characterized in that: The screen divides the interior of the shell into a first layer and a second layer. A telescopic rod is provided in the first layer, one end of which is fixedly mounted on the inner top wall of the shell, and the other end of the telescopic rod abuts against the trough of the screen. A support rod is provided in the second layer, which extends along the second direction, and both ends of the support rod are fixedly mounted on the shell, and the screen is located between the telescopic rod and the support rod.
6. A dust removal linear vibrating screen according to claim 5, characterized in that: A rotating wheel is installed at one end of the telescopic rod close to the screen, the rotating wheel is rotatably connected to the telescopic rod, and the rotating axis of the rotating wheel extends along the first direction.
7. The dust removal linear vibrating screen according to claim 5, characterized in that: The shell is provided with a second discharge port, and the second discharge port is used for discharging the material in the second layer.
8. The dust removal linear vibrating screen according to claim 1, characterized in that: An air collecting hood is provided on the top of the shell, a dust collecting device is provided on the bracket, the air collecting hood and the dust collecting device are connected, and the dust collecting device collects dust generated inside the shell through the air collecting hood.
9. The dust removal linear vibrating screen according to claim 1, characterized in that: A vibration motor is provided on the outer shell, which is used to provide rotational power for the screen. Two sets of connecting frames are provided between the bracket and the outer shell, and the two ends of the two sets of connecting frames are respectively connected to the bracket and the outer shell. The two sets of connecting frames are arranged along the first direction, and the connecting frames can move along the third direction.
10. The dust removal linear vibrating screen according to claim 1, characterized in that: A feed port is provided on the outer shell, and the feed port is located above the screen. The projection of the line between the feed port and the first discharge port on the screen extends along the first direction. A spacing is provided between the feed port and the first discharge port, and one end of the screen close to the feed port is higher than the other end of the screen close to the first discharge port.
Citation Information
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