Screen hole anti-blocking device and vibrating screen equipment
By using the floating connection between the floating components and the screen fixing frame, and the elastic structural design, the problem of easy screen clogging in the processing of wet and sticky fine granular materials is solved, realizing automated cleaning and improving screening efficiency and reliability.
Patent Information
- Application Number
- CN202422837592.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-20
- Publication Date
- 2025-11-18
- Estimated Expiration
- 2034-11-20
AI Technical Summary
Existing vibrating screens are prone to clogging when processing wet, sticky, fine-particle materials, resulting in reduced screening efficiency, low cleaning efficiency, complex structure, high cost, and incomplete cleaning.
The floating component is connected to the screen fixing frame in a floating manner. The floating component repeatedly hits the screen during vibration, and the screen fixing frame automatically cleans the screen by vibration. The movement trajectory is restricted by the elastic structure and guide shaft to achieve automated cleaning.
It achieves automatic cleaning without the need for an additional vibration source, has a simple structure, high reliability, low cost, excellent cleaning effect, reduces downtime maintenance, and improves screening efficiency.
Smart Images
Figure CN223556488U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to material screening technical field especially is related to a sieve hole anti -blocking device and vibrating screen equipment. BACKGROUND
[0002] Vibrating screen equipment is the common filtering mechanical separation equipment of fine particle material screening classification, has obtained the wide application in the mining, building material, transportation, energy, chemical industry etc. The sieve of existing vibrating screen is blocked by screening material in the screening process of handling wet sticky fine particle, makes the screening effect of sieve greatly decline. Since vibrating screen works under the action of relatively stable vibration force and amplitude, when the heap or hole blocking phenomenon appears, it is difficult to restore automatically, often needs to stop and carries out the manual hole cleaning treatment, not only the cleaning efficiency is low, the labor intensity of worker is big, and directly influences the normal screening operation of vibrating screen.
[0003] At present, the device for cleaning sieve on the market is all through the vibration source such as motor drives cleaning tool to produce forced vibration, to reach the purpose of cleaning sieve surface. The existing device for cleaning sieve needs additional drive to force cleaning tool to drive sieve surface to vibrate, the structure is relatively complex, the reliability is relatively weak, and the cost is high, the weight is big, increases the power consumption of whole machine.
[0004] In addition, the sieve of a part of vibrating screen equipment on the market is inclined, which causes that certain cleaning tool cannot adjust the angle of cleaning tool because it is parallelly arranged, leading to incomplete cleaning, so that the cleaning difficulty is increased. UTILITY MODEL CONTENT
[0005] The first object of the utility model is to provide a sieve hole anti-blocking device to solve the technical problems of the existing device for cleaning sieve, such as complex structure, high cost, heavy weight, high power consumption and poor cleaning effect.
[0006] In order to achieve the above object, the utility model adopts the following technical scheme:
[0007] A sieve hole anti-blocking device, including floating piece, the floating piece is used for and the sieve of vibrating screen equipment is fixed with floating connection, the sieve fixed frame is equipped with sieve on it;
[0008] The floating piece can move with the sieve fixed frame and repeatedly hit the sieve during the vibration of the sieve fixed frame.
[0009] Further, it further includes mounting seat and sliding support, wherein:
[0010] The mounting seat is fixedly connected with the sieve fixed frame;
[0011] The sliding support is floatingly connected to the mounting base, and one end of the sliding support close to the screen is fixed to the floating member.
[0012] Further, the sliding support comprises a sliding plate and a plurality of supporting rods, wherein:
[0013] The sliding plate is floatingly connected to the mounting base.
[0014] One end of the supporting rod is fixed to the floating member, and the other end of the supporting rod is slidingly arranged in the sliding plate, and the supporting rod is provided with locking structure for locking the relative position of the sliding plate and the supporting rod.
[0015] Further, a plurality of counterweights are arranged on the sliding support.
[0016] Further, an elastic structure and a guide shaft are further included, wherein:
[0017] The elastic structure comprises a compression spring or a tension spring, and two ends of the compression spring or the tension spring are connected to the mounting base and the sliding support respectively.
[0018] The guide shaft is arranged in the compression spring or the tension spring and the sliding support, and two ends of the guide shaft are fixed to the mounting base.
[0019] Further, the floating member is arranged below the screen, and is floatingly connected to the screen fixing frame in the direction away from or close to the bottom surface of the screen.
[0020] Further, an elastic structure is further included, and the elastic structure is arranged between the floating member and the screen fixing frame.
[0021] The elastic structure comprises a first elastic member for providing the elastic force for driving the floating member to be close to the screen and / or a second elastic member for providing the elastic force for driving the floating member to be away from the screen.
[0022] Further, the elastic structure comprises at least one of a compression spring, a tension spring, an air bag and an elastic band.
[0023] Further, the floating member is made of flexible material.
[0024] The second object of the utility model is to provide a vibrating screen device, the vibrating screen device includes screen fixing frame, the screen fixed on the screen fixing frame and the screen hole anti-blocking device of any one of the above.
[0025] The utility model has the advantages of:
[0026] The utility model provides a kind of sieve hole anti-blocking device and vibrating screen equipment, the sieve hole anti-blocking device includes floating element, floating element is used to and the sieve net fixing frame floating connection of vibrating screen equipment, sieve net fixing frame is equipped with sieve net;Floating element can move with sieve net fixing frame and repeatedly hit sieve net in the process of sieve net fixing frame vibration.
[0027] The sieve hole anti-blocking device provided by the utility model, the floating element is floatingly connected with the sieve net fixing frame, so that the floating element can be driven by the sieve net fixing frame to vibrate and repeatedly hit the sieve net, without the need for an additional vibration source, thereby making the device have the advantages of simple structure, high reliability, low cost, light weight and low power consumption. Moreover, the floating element can vibrate with the sieve net fixing frame, i.e., the floating element can automatically clean the sieve net during the operation of the vibrating screen equipment, without the need for manual operation of the device, thereby greatly relieving the problem of material stacking or hole blocking. In addition, the angle between the floating element and the sieve net is adjustable, and the floating element and the sieve net can be installed in parallel during installation, so that the floating element hits the sieve net perpendicularly to achieve optimal cleaning effect. BRIEF DESCRIPTION OF DRAWINGS
[0028] In order to more clearly illustrate the specific embodiments of the utility model or the technical solutions in the prior art, the following will briefly introduce the drawings needed to be used in the specific embodiments or the prior art description. Obviously, the drawings described below are some embodiments of the utility model, and those skilled in the art can also obtain other drawings according to these drawings without creative labor.
[0029] Figure 1 It is a front view schematic diagram when the sieve hole anti-blocking device provided by the first embodiment of the utility model is installed on the vibrating screen equipment.
[0030] Figure 2 It is a front view schematic diagram when the sieve hole anti-blocking device provided by the second embodiment of the utility model is installed on the vibrating screen equipment.
[0031] Figure 3 It is a front view schematic diagram when the sieve hole anti-blocking device provided by the third embodiment of the utility model in one form is installed on the vibrating screen equipment.
[0032] Figure 4 It is a front view schematic diagram when the sieve hole anti-blocking device provided by the third embodiment of the utility model in another form is installed on the vibrating screen equipment.
[0033] Figure 5 It is a front view schematic diagram when the sieve hole anti-blocking device provided by the fourth embodiment of the utility model is installed on the vibrating screen equipment.
[0034] Figure 6The principle diagram of the sieve hole anti-blocking device is provided for the fourth embodiment of the utility model;
[0035] Figure 7 The exploded view of the sieve hole anti-blocking device is provided for the fifth embodiment of the utility model;
[0036] Figure 8 The front view schematic diagram of the sieve hole anti-blocking device is provided for the fifth embodiment of the utility model;
[0037] Figure 9 The side view schematic diagram of the sieve hole anti-blocking device is provided for the fifth embodiment of the utility model;
[0038] Figure 10 The Figure 9 The sectional view at A-A;
[0039] Figure 11 The partial attached view schematic diagram of the vibrating screen equipment is provided for the sixth embodiment of the utility model;
[0040] Figure 12 The Figure 11 The sectional view at B-B.
[0041] Icon:
[0042] 1-floater;
[0043] 2-elastic structure; 21-first elastic member; 22-second elastic member;
[0044] 3-mounting seat;
[0045] 4-sliding support; 41-sliding plate; 42-supporting rod; 43-supporting top plate; 44-first guide sleeve; 45-locking nut;
[0046] 5-counterweight;
[0047] 6-guide shaft;
[0048] 7-second guide sleeve;
[0049] 100-sieve net fixing frame; 101-cross beam;
[0050] 200-sieve net. DETAILED DESCRIPTION
[0051] The technical scheme of the utility model will be described clearly and completely in combination with embodiments, obviously, the described embodiments are a part of embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the protection scope of the utility model.
[0052] It should be noted that in the description of the utility model, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model. In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.
[0053] It should be noted that in the description of the utility model, the terms "connection" and "installation" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integral connection, it can be directly connected, or connected through an intermediate medium, it can be mechanical connection, or electrical connection. For those skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific situation.
[0054] Referring to Figures 1 to 10 The utility model provides a sieve hole anti -blocking device, this device includes floating piece 1, floating piece 1 is used for and the sieve net fixed frame 100 of vibrating screen equipment floating connection, be equipped with sieve net 200 on sieve net fixed frame 100;
[0055] Floating piece 1 can move with sieve net fixed frame 100 and repeatedly hit sieve net 200 in the process of the vibration of sieve net fixed frame 100.
[0056] The sieve hole anti-blocking device provided by the utility model includes floating piece 1, floating piece 1 is used for and the sieve net fixed frame 100 of vibrating screen equipment floating connection, in the process of vibrating screen equipment work, sieve net fixed frame 100 drives sieve net 200 to vibrate to carry out screening to material, at the same time, floating piece 1 moves with sieve net fixed frame 100 and repeatedly hits sieve net 200, thereby can prevent sieve hole from being blocked, realizes the purpose of cleaning sieve surface.
[0057] In the screen hole anti-clogging device provided by this utility model, the floating component 1 is floatingly connected to the screen fixing frame 100. This allows the floating component 1 to vibrate and repeatedly strike the screen 200 under the drive of the screen fixing frame 100, eliminating the need for an additional vibration source. This results in advantages such as simple structure, high reliability, low cost, light weight, and low power consumption. Furthermore, the floating component 1 vibrates together with the screen fixing frame 100, meaning it automatically cleans the screen 200 during the operation of the vibrating screen equipment without requiring manual operation, thus significantly alleviating the problems of material accumulation or clogging. In addition, the angle between the floating component 1 and the screen 200 is easily adjustable. During installation, the floating component 1 and the screen 200 can be installed parallel to each other, allowing the floating component 1 to strike the screen 200 perpendicularly for optimal cleaning.
[0058] As an optional embodiment, the floating member 1 is disposed below the screen 200 and is floatingly connected to the screen fixing frame 100 in a direction away from or close to the bottom surface of the screen 200. In the above structure, the floating member 1 is disposed below the screen 200, which can alleviate or avoid the device from obstructing the material; the floating member 1 is floatingly connected to the screen fixing frame 100 in a direction away from or close to the bottom surface of the screen 200, so that the movement trajectory of the floating member 1 is perpendicular to the screen surface of the screen 200, thereby achieving the best cleaning effect.
[0059] It should be noted that in other embodiments, the movement trajectory of the floating member 1 may not be perpendicular to the screen surface of the screen 200; the floating member 1 only needs to be able to vibrate with the screen fixing frame 100 and repeatedly strike the screen 200. Figure 1 As shown, the floating member 1 can move vertically up and down or diagonally up and down, and this application does not limit the movement trajectory of the floating member 1. In addition, the floating member 1 can also be disposed above the screen 200 and float and connected to the screen fixing frame 100 in a direction away from or close to the top surface of the screen 200.
[0060] As an optional embodiment, the screen hole anti-clogging device further includes an elastic structure 2, which is used to connect between the floating member 1 and the screen fixing frame 100.
[0061] The elastic structure 2 includes a first elastic element 21 for providing an elastic force to drive the floating element 1 toward the screen 200 and / or a second elastic element 22 for providing an elastic force to drive the floating element 1 away from the screen 200.
[0062] Optionally, the elastic structure 2 includes at least one of a compression spring, a tension spring, an air bladder, and a rubber band. Specifically, the first elastic element 21 and the second elastic element 22 can be one of a compression spring, a tension spring, an air bladder, and a rubber band, respectively.
[0063] The elastic structure 2 can provide an elastic force for driving the floating member 1 to approach and / or move away from the screen 200, and can form a two-mass vibration system of the floating member 1 and the screen fixing frame 100, so that the floating member 1 spontaneously vibrates under the exciting vibration force generated by the screen fixing frame 100, the vibration amplitude and stability of the floating member 1 are increased by using the two-mass vibration principle, and thus a better cleaning effect on the screen surface is achieved. Specifically, the screen fixing frame 100 provides vibration, and the sub-mass (i.e., the floating member 1) performs secondary vibration under the exciting vibration force of the screen fixing frame 100, so that the floating member 1 continuously hits the screen surface to clean the screen surface, and the screen hole is always kept unblocked.
[0064] Due to the elastic structure 2, when the vibrating screen device is started, the floating member 1 will perform up-and-down floating action along with the exciting vibration force generated by the screen fixing frame 100. When the vibrating screen device is gradually stabilized, the floating member 1 will continuously perform up-and-down hitting action at a certain frequency, so that the screen surface is always hit to prevent the problem of blocked screen holes.
[0065] As an optional embodiment, in order to reduce the damage to the screen surface, the floating member 1 is made of flexible material.
[0066] The screen hole anti-blocking device provided by the utility model will be described in detail in the following specific embodiments.
[0067] Embodiment one
[0068] With reference to Figure 1 In the screen hole anti-blocking device provided by the embodiment, the floating member 1 is connected with the screen fixing frame 100, and the floating member 1 and the screen fixing frame 100 have a relative floating amount.
[0069] In the embodiment, the floating member 1 is arranged below the screen 200. When the screen fixing frame 100 is in a static state, the floating member 1 is also in a static state, at this time, there is a gap between the floating member 1 and the screen 200.
[0070] During the starting of the vibrating screen device, the screen fixing frame 100 is in a vibrating state, at this time, the screen fixing frame 100 drives the screen 200 on it to vibrate. The screen fixing frame 100 pushes the floating member 1 to rise in the rising process, and in the descending process of the screen fixing frame 100, due to the relative floating amount of the floating member 1 and the screen fixing frame 100, the descending speed of the floating member 1 is smaller than that of the screen fixing frame 100 under the action of inertia, so the vibrations of the floating member 1 and the screen fixing frame 100 are different in frequency. The gap between the floating member 1 and the screen 200 and the weight of the floating member 1 are reasonably controlled, so that the floating member 1 can vibrate with the screen fixing frame 100 and repeatedly hit the screen 200 during the vibration of the screen fixing frame 100, and the purpose of cleaning the screen 200 is achieved.
[0071] Further, the screen hole anti-blocking device further comprises a mounting seat 3 and a sliding support 4, wherein:
[0072] The mounting seat 3 is fixedly connected to the screen fixing frame 100.
[0073] The sliding support 4 is floatingly connected to the mounting seat 3, and one end of the sliding support 4 close to the screen 200 is fixedly connected to the floating member 1.
[0074] In the above structure, the mounting seat 3 can be fixed on the screen fixing frame 100 by bolts or other fasteners. The mounting seat 3 facilitates the connection of the screen hole anti-blocking device and the screen fixing frame 100.
[0075] It can be understood that in other embodiments, the screen hole anti-blocking device can not be provided with the mounting seat 3, and the sliding support 4 can be directly floatingly connected to the screen fixing frame 100. Alternatively, the mounting seat 3 and the screen fixing frame 100 are welded as a whole.
[0076] On the basis of the above structure, the number of mounting seats 3 is two and they are respectively arranged on both sides of the sliding support 4; the mounting seat 3 is provided with a groove, and one side edge of the sliding support 4 is arranged in the groove and can move up and down in the groove.
[0077] More specifically, the sliding support 4 comprises a sliding plate 41 and a plurality of supporting rods 42, wherein: one side edge of the sliding plate 41 is arranged in the groove on the mounting seat 3 and can move up and down in the groove; and the two ends of the supporting rod 42 are respectively connected to the floating member 1 and the sliding plate 41.
[0078] Since one side edge of the sliding plate 41 is arranged in the groove on the mounting seat 3 and can move up and down in the groove, the floating member 1 and the screen fixing frame 100 can produce vibrations of different frequencies, so that the floating member 1 can vibrate with the screen fixing frame 100 and repeatedly hit the screen 200, achieving the purpose of cleaning the screen 200.
[0079] Embodiment Two
[0080] The screen hole anti-blocking device provided in this embodiment is an extended scheme on the basis of Embodiment One, and the screen hole anti-blocking device provided in Embodiment One is referred to. Figure 2 The screen hole anti-blocking device provided in this embodiment further comprises a guide shaft 6, the guide shaft 6 is arranged in the sliding support 4, and the two ends of the guide shaft 6 are fixedly connected to the mounting seat 3.
[0081] Specifically, the mounting seat 3 is in a U-shaped structure, which comprises a first horizontal plate, a vertical plate and a second horizontal plate connected in sequence from top to bottom, and a groove is formed between the first horizontal plate, the vertical plate and the second horizontal plate, one side edge of the sliding plate 41 is arranged in the groove and can move up and down in the groove; the guide shaft 6 is arranged in the sliding plate 41, and the two ends of the guide shaft 6 are respectively fixedly connected to the first horizontal plate and the second horizontal plate.
[0082] The guide shaft 6 limits the movement track of the floating member 1, so that the floating member 1 can vibrate in the direction perpendicular to the screen surface of the screen 200, thereby achieving the optimal cleaning effect.
[0083] Embodiment Three
[0084] The screen hole anti-blocking device provided in this embodiment is an extended scheme based on the screen hole anti-blocking device provided in Embodiment One or Embodiment Two, and the screen hole anti-blocking device provided in this embodiment further comprises an elastic structure 2. Figure 3 and Figure 4 The elastic structure 2 comprises a first elastic member 21 for providing an elastic force for driving the floating member 1 to approach the screen 200.
[0085] Optionally, the first elastic member 21 can be one of a compression spring, a tension spring, an air bag, and an elastic band.
[0086] Figure 3 In the illustrated embodiment, the first elastic member 21 is specifically a compression spring or an air bag, and the first elastic member 21 is arranged between the end of the sliding plate 41 away from the screen 200 and the mounting seat 3, and the two axial ends of the first elastic member 21 are respectively abutted against the second horizontal plate below the mounting seat 3 and the sliding plate 41, thereby being able to provide the elastic force for driving the floating member 1 to approach the screen 200.
[0087] Figure 4 In the illustrated embodiment, the first elastic member 21 is specifically a tension spring or an elastic band, and the first elastic member 21 is arranged between the end of the sliding plate 41 close to the screen 200 and the mounting seat 3, and the two axial ends of the first elastic member 21 are respectively connected to the first horizontal plate above the mounting seat 3 and the sliding plate 41, thereby being able to provide the elastic force for driving the floating member 1 to approach the screen 200. When the first elastic member 21 is a tension spring, hooks are arranged at the two ends of the tension spring, and the two ends of the tension spring are respectively hooked on the first horizontal plate and the sliding plate 41.
[0088] When the screen fixing frame 100 is in a static state, the first elastic member 21 will have a certain pre-compression amount or pre-stretching amount under the gravity of the floating member 1 and the sliding support 4, at this time, the floating member 1 is stable at an initial position, and there is a gap between the floating member 1 and the screen 200.
[0089] When the screen fixing frame 100 is in a vibrating state, the floating member 1 will perform the up-and-down floating action with the exciting force generated by the screen fixing frame 100. When the vibrating screen device is gradually stabilized, the floating member 1 will constantly perform the up-and-down hitting action following a certain frequency, thereby repeatedly hitting the screen surface.
[0090] As an optional embodiment, in the embodiment without the guide shaft 6, the two axial ends of the first elastic member 21 can be fixed on the mounting seat 3 and the sliding support 4 through clamping or screws and the like fasteners.
[0091] As an optional embodiment, in the embodiment provided with the guide shaft 6, the first elastic member 21 is a compression spring or a tension spring, and the guide shaft 6 is arranged in the first elastic member 21 and the sliding support 4. The radial displacement of the first elastic member 21 can be limited by the guide shaft 6, thereby improving the reliability of the overall structure of the device.
[0092] Embodiment Four
[0093] The screen hole anti-blocking device provided in the embodiment is an extended solution based on any of the above embodiments, and refers to the screen hole anti-blocking device provided in the above embodiments. Figure 5 and Figure 6 The screen hole anti-blocking device provided in the embodiment further comprises an elastic structure 2, which comprises a first elastic member 21 for providing an elastic force for driving the floating member 1 to approach the screen 200 and a second elastic member 22 for providing an elastic force for driving the floating member 1 to move away from the screen 200.
[0094] Taking an embodiment in which the first elastic member 21 and the second elastic member 22 are both compression springs as an example, the first elastic member 21 is connected between the end face of the sliding plate 41 away from the screen 200 and the mounting seat 3, and the second elastic member 22 is connected between the end face of the sliding plate 41 close to the screen 200 and the mounting seat 3.
[0095] When the screen fixing frame 100 is in a static state, the first elastic member 21 will be pre-compressed under the elastic force of the second elastic member 22 and the gravity of the floating member 1 and the sliding support 4. At this time, the floating member 1 is stable at an initial position, and there is a gap between the floating member 1 and the screen 200.
[0096] Optionally, the number of the first elastic member 21 and / or the second elastic member 22 is one or more; the number of the first elastic member 21 and the second elastic member 22 can be the same or different.
[0097] On the basis of the above structure, the number of the first elastic member 21 and the second elastic member 22 is the same, and the first elastic member 21 and the second elastic member 22 correspond one-to-one and overlap in the axial direction.
[0098] Embodiment Five
[0099] The screen hole anti-blocking device provided in the embodiment is an extended solution based on any of the above embodiments, and refers to the screen hole anti-blocking device provided in the above embodiments. Figures 7 to 10 The screen hole anti-blocking device provided in the embodiment further comprises a mounting seat 3 and a sliding support 4, wherein:
[0100] The mounting seat 3 is fixedly connected to the screen fixing frame 100;
[0101] The sliding support 4 is floatingly connected to the mounting seat 3, and one end of the sliding support 4 close to the screen 200 is fixedly connected to the floating member 1.
[0102] Further, the sliding support 4 comprises a sliding plate 41 and a plurality of support rods 42, wherein:
[0103] The sliding plate 41 is floatingly connected to the mounting base 3;
[0104] One end of the support rod 42 is fixedly connected to the floating member 1, the other end of the support rod 42 is slidingly connected to the sliding plate 41, and the support rod 42 is provided with a locking structure for locking the relative position of the sliding plate 41 and the support rod 42.
[0105] On the basis of the above structure, the locking structure comprises two locking nuts 45 screwed on the support rod 42, and the two locking nuts 45 are respectively arranged on the opposite sides of the sliding plate 41 along the axial direction of the support rod 42. By screwing the two locking nuts 45, the relative position of the sliding plate 41 and the support rod 42 can be adjusted, so as to adjust the distance between the floating member 1 and the screen 200 when the screen fixing frame 100 is in a static state, and further adjust the deformation degree of the screen 200 under the beating of the floating member 1, so as to adapt to different screen surface requirements, avoid damage to the screen surface, and make the device have the optimal cleaning effect.
[0106] Further, the floating member 1 is made of flexible material; the sliding support 4 further comprises a support top plate 43, the support top plate 43 is fixedly connected to the floating member 1, and one end of the support rod 42 is fixedly connected to the support top plate 43.
[0107] Specifically, the floating member 1, the support top plate 43, the support rod 42 and the sliding plate 41 are arranged in sequence in the direction away from the screen 200, wherein: the floating member 1 and the support top plate 43 are fixedly connected by one or more screws; the top of the support rod 42 is provided with a threaded hole, and the support top plate 43 is fixed on the support rod 42 by a screw. The above-mentioned screw is preferably a countersunk screw, which can be hidden in the part to avoid interference between adjacent parts.
[0108] Optionally, the material of the floating member 1 can be rubber, or silicone, or cotton-soft material, etc. The floating member 1 is attached to the side of the support top plate 43 close to the screen 200, and the support top plate 43 is used to support the floating member 1 to avoid deformation of the floating member 1.
[0109] Further, the screen hole anti-blocking device further comprises a plurality of counterweight blocks 5 arranged on the sliding support 4.
[0110] Specifically, the number of counterweight blocks 5 can be one or more, and the number of counterweight blocks 5 can be adjusted according to specific use requirements, so that the device has the optimal cleaning force. The counterweight blocks 5 can be fixed on the sliding plate 41 by bolts; when the number of counterweight blocks 5 is multiple, the multiple counterweight blocks 5 are stacked on the upper end surface and / or the lower end surface of the sliding plate 41.
[0111] On the basis of the above structure, the number of the supporting rods 42 is two, and the two supporting rods 42 are arranged at intervals along the length direction of the sliding plate 41; the counterweight 5 is arranged between the two supporting rods 42.
[0112] With reference to the above Figure 10 , the sieve hole anti-blocking device further comprises an elastic structure 2 and a guide shaft 6, wherein:
[0113] The elastic structure 2 comprises a compression spring or a tension spring, and two ends of the compression spring or the tension spring are respectively connected to the mounting seat 3 and the sliding support 4;
[0114] The guide shaft 6 is arranged through the compression spring or the tension spring and the sliding support 4, and two ends of the guide shaft 6 are fixed to the mounting seat 3.
[0115] Figure 10 In the illustrated embodiment, the elastic structure 2 comprises a plurality of compression springs, and the plurality of compression springs are divided into a plurality of first elastic members 21 for providing an elastic force for driving the floating member 1 to approach the screen 200, and a plurality of second elastic members 22 for providing an elastic force for driving the floating member 1 to move away from the screen 200; the first elastic members 21 and the second elastic members 22 are respectively arranged on the upper and lower sides of the sliding plate 41.
[0116] On the basis of the above structure, the number of the guide shaft 6, the first elastic members 21 and the second elastic members 22 is the same, and the guide shaft 6, the first elastic members 21 and the second elastic members 22 correspond to each other one by one; the guide shaft 6 is arranged through the first elastic members 21, the sliding plate 41 and the second elastic members 22 in sequence, and the end portion of the guide shaft 6 can be fixed to the mounting seat 3 by a nut or other fastener.
[0117] With reference to the above Figure 10 , the sliding support 4 further comprises a first guide sleeve 44, and the first guide sleeve 44 is fixed to the sliding plate 41 and is sleeved on the guide shaft 6;
[0118] and / or, further comprises a second guide sleeve 7 fixed to the mounting seat 3, and the guide shaft 6 is arranged through the second guide sleeve 7.
[0119] The arrangement of the first guide sleeve 44 reduces the friction force suffered by the sliding support 4 when sliding on the guide shaft 6, so that the sliding support 4 can float up and down relative to the mounting seat 3 smoothly. The arrangement of the second guide sleeve 7 facilitates the assembly of the mounting seat 3 and the guide shaft 6.
[0120] In the embodiment, the number of the guide shaft 6 is two, and the two guide shafts 6 are respectively arranged on the two sides of the sliding plate 41 along the length direction. The number of the mounting seat 3 is two, and the two mounting seats 3 are respectively fixed to the two side beams 101 of the screen fixing frame 100. The two sides of the sliding plate 41 along the length direction are respectively connected to the two mounting seats 3 in a floating manner.
[0121] The sieve hole anti-blocking device provided in the embodiment has a symmetrical structure, and the stress is more uniform.
[0122] In summary, the screen hole anti-blocking device provided by the embodiment forms a double-mass vibration system through the first elastic member 21 and the second elastic member 22, so that the floating member 1 and the screen fixing frame 100 vibrate. When the vibrating screen device is gradually stabilized, the floating member 1 will repeatedly hit the screen surface at a certain frequency. The installation seat 3 is arranged to form a whole, thereby facilitating the disassembly and assembly of the device. The distance between the floating member 1 and the screen 200 is adjustable, so that the deformation degree of the screen 200 under the hitting of the floating member 1 can be controlled. One or more counterweights 5 can be installed on the sliding support 4 to adjust the cleaning strength of the device. The guide shaft 6 is arranged to limit the movement track of the floating member 1, so that the movement track of the floating member 1 is perpendicular to the screen surface, thereby achieving the optimal cleaning effect.
[0123] Embodiment six
[0124] The vibrating screen device provided by the embodiment comprises a screen fixing frame 100, a screen 200 fixedly arranged on the screen fixing frame 100, and the screen hole anti-blocking device according to any one of the above embodiments. Figure 11 and Figure 12 The vibrating screen device provided by the embodiment comprises a screen fixing frame 100, a screen 200 fixedly arranged on the screen fixing frame 100, and the screen hole anti-blocking device according to any one of the above embodiments.
[0125] During the operation of the vibrating screen device, the floating member 1 of the screen hole anti-blocking device vibrates up and down with the screen fixing frame 100. Since the floating member 1 is floatingly connected with the screen fixing frame 100, the vibrations of the two are different in frequency, so that the floating member 1 can repeatedly hit the screen 200 during the vibration, thereby achieving the purpose of cleaning the screen surface.
[0126] Optionally, the screen 200 has a flexible screen surface. The floating member 1 is also made of flexible material, so as to avoid damaging the screen surface during the hitting of the screen 200 by the floating member 1.
[0127] As an optional embodiment, the two sides of the floating member 1 along the length direction are floatingly connected with the two side beams 101 of the screen fixing frame 100. The floating member 1 is arranged at the middle position below the screen 200, and the floating member 1 is parallelly arranged with the screen 200. The floating member 1 is floatingly connected with the screen fixing frame 100 in the direction approaching or moving away from the bottom surface of the screen 200, and the movement track of the floating member 1 is perpendicular to the screen surface of the screen 200. Such an arrangement can achieve the optimal cleaning effect.
[0128] Referring to Figure 11 As an optional embodiment, the screen 200 is not provided with screen holes corresponding to the positions of the floating member 1, so as to avoid the accumulation of materials on the floating member 1.
[0129] As an optional embodiment, the screen hole anti-blocking device further comprises an elastic structure 2 connected between the floating member 1 and the support of the screen fixing frame 100, for providing elastic force for driving the floating member 1 to approach and / or move away from the screen 200, which can enable the floating member 1 and the screen fixing frame 100 to form a double-mass vibration system, and increase the vibration amplitude and stability of the floating member 1 by using the double-mass vibration principle, so as to achieve a better cleaning effect on the screen surface.
[0130] With reference to Figure 12 As an optional embodiment, the screen hole anti-blocking device further comprises a mounting seat 3 which can be fixed to the screen fixing frame 100 by bolts, and the elastic structure 2 is connected between the floating member 1 and the mounting seat 3. That is, the floating member 1 is indirectly connected to the screen fixing frame 100 through the mounting seat 3. The mounting seat 3 is arranged to form an integral device, facilitating the disassembly and assembly of the device.
[0131] Further, the number of mounting seats 3 is two, and each is fixed to a lateral beam 101 of the screen fixing frame 100. The floating member 1 is connected to the two mounting seats 3 respectively at the two sides in the length direction.
[0132] In the vibrating screen device provided by the embodiment, the screen hole anti-blocking device is assembled with the screen fixing frame 100 as a whole, and does not need an additional power source to drive the movement of the screen hole anti-blocking device. The floating member 1 vibrates and repeatedly hits the screen 200 by using the driving force of the vibrating screen device itself, achieving a cleaning effect. Since the screen holes of the screen 200 are not easy to be blocked, the screening efficiency of wet sticky materials is greatly improved. In addition, the screen hole anti-blocking device is arranged below the screen 200, and the position of the screen 200 corresponding to the device is not provided with screen holes, so that the material cannot be accumulated on the device, and the device can be operated safely and reliably for a long time.
[0133] The vibrating screen device provided by the embodiment has all the technical effects of the screen hole anti-blocking device described above, and will not be described here.
[0134] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.
Claims
1. A sieve hole anti-clogging device, characterized in that, Includes a floating component (1), which is used to float and connect with the screen fixing frame (100) of the vibrating screen equipment, and the screen fixing frame (100) is provided with a screen (200); The floating component (1) can move with the screen fixing frame (100) and repeatedly strike the screen (200) during the vibration of the screen fixing frame (100).
2. The sieve hole anti-clogging device according to claim 1, characterized in that, It also includes a mounting base (3) and a sliding support (4), wherein: The mounting base (3) is fixedly connected to the screen fixing frame (100); The sliding support (4) is floatingly connected to the mounting base (3), and one end of the sliding support (4) near the screen (200) is fixed to the floating member (1).
3. The sieve hole anti-clogging device according to claim 2, characterized in that, The sliding support (4) includes a sliding plate (41) and several support rods (42), wherein: The sliding plate (41) is floatingly connected to the mounting base (3); One end of the support rod (42) is fixed to the floating member (1), and the other end of the support rod (42) slides through the slide plate (41). The support rod (42) is provided with a locking structure for locking the relative position of the slide plate (41) and the support rod (42).
4. The sieve hole anti-clogging device according to claim 2, characterized in that, It also includes several counterweights (5) mounted on the sliding support (4).
5. The sieve hole anti-clogging device according to claim 2, characterized in that, It also includes an elastic structure (2) and a guide shaft (6), wherein: The elastic structure (2) includes a compression spring or a tension spring, the two ends of which are respectively connected to the mounting base (3) and the sliding support (4); The guide shaft (6) passes through the compression spring or the tension spring and the sliding support (4), and both ends of the guide shaft (6) are fixed to the mounting base (3).
6. The sieve hole anti-clogging device according to any one of claims 1 to 5, characterized in that, The floating component (1) is located below the screen (200) and is floatingly connected to the screen fixing frame (100) in a direction away from or close to the bottom surface of the screen (200).
7. The sieve hole anti-clogging device according to any one of claims 1 to 5, characterized in that, It also includes an elastic structure (2) for connecting the floating member (1) and the screen fixing frame (100); The elastic structure (2) includes a first elastic element (21) for providing an elastic force to drive the floating element (1) toward the screen (200) and / or a second elastic element (22) for providing an elastic force to drive the floating element (1) away from the screen (200).
8. The sieve hole anti-clogging device according to claim 7, characterized in that, The elastic structure (2) includes at least one of a compression spring, a tension spring, an air bladder, and a rubber band.
9. The screen hole anti-clogging device according to any one of claims 1 to 5, characterized in that, The floating component (1) is made of flexible material.
10. A vibrating screen device, characterized in that, It includes a screen holder (100), a screen (200) fixed on the screen holder (100), and a screen hole anti-clogging device as described in any one of claims 1 to 9.