Anti-blocking device for drum screen
By designing a combination device of cross rod, cam, rotating shaft and impact rod, the problem of raw material fertilizer blockage during use of the drum screen is solved, and the prevention of blockage on the drum screen is achieved, reducing the impact of blockage on the screening effect, and through adjustment Function avoids damage to the screen barrel.
Patent Information
- Application Number
- CN202420334211.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-22
- Publication Date
- 2024-12-06
- Estimated Expiration
- 2034-02-22
AI Technical Summary
During the use of the roller screen, raw material fertilizers are prone to clogging into the screen hole of the screen barrel, affecting the screening effect of the raw material.
An anti-blocking device is designed, including a cross rod, a cam, a rotary shaft, a bracket and an impact rod. The transmission shaft is driven by a motor to rotate, and the cam is driven by a gear and a chain to drive the cross rod to fall and hit the impact rod and hit the screen barrel. To prevent clogging, and adjust the impact force by adjusting the screw and spring to avoid damage to the screen barrel.
It effectively reduces the impact of raw material blockage on the screening effect, improves the anti-blocking effect of the screen barrel, and avoids damage to the screen barrel caused by excessive impact force through the adjustment function.
Smart Images
Figure CN222112471U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of drum screens, in particular to a drum screen anti-blocking device. Background Art
[0002] The drum screen is a raw material sorting equipment that controls the sorting of raw materials by controlling the size of particles.
[0003] In the current existing technology, when blended fertilizer is produced, the staff needs to first use a drum screen to screen the raw fertilizer. The drum screen is mainly composed of a box, a reduction motor, a screen drum and a drive shaft; the screen drum is installed on the drive shaft, the drive shaft is connected to the reduction motor drive shaft, and the screen drum is installed on the top of the box. When in use, the raw material is poured into the inside of the screen drum, and then the reduction motor drives the drive shaft and the screen drum to rotate, and the raw fertilizer is screened through the sieve holes on the screen drum.
[0004] However, during use, part of the raw fertilizer will get stuck in the sieve holes of the sieve drum, thereby causing blockage of the sieve holes, thereby affecting the screening of the raw fertilizer; therefore, a drum screen anti-blocking device is proposed to address the above problem. Utility Model Content
[0005] In order to make up for the deficiencies of the prior art and solve at least one technical problem raised in the background technology, the utility model proposes a drum screen anti-clogging device.
[0006] The technical solution adopted by the utility model to solve its technical problems is as follows: the utility model discloses a drum screen anti-blocking device, comprising a box body; a motor is fixedly connected to the side of the box body; a transmission shaft is fixedly connected to the output end of the motor; a screen drum is fixedly connected to the transmission shaft; brackets are fixedly connected to both sides of the top of the box body; a slide groove is provided on the top of the bracket; a cross bar is slidably connected in the slide groove; a plurality of impact rods are provided at the bottom of the cross bar; the impact rod is located at the top of the screen drum; a rotating shaft is rotatably connected to the side of the bracket; a gear is fixedly connected to the rotating shaft and the transmission shaft; a chain is installed on the gear; a cam is fixedly connected to the end of the rotating shaft; the cross bar is located at the top of the cam, and the impact rod is driven to hit the screen drum by the falling of the cross bar, so as to play the role of preventing the screen drum from being blocked and reduce the influence of the mixed fertilizer raw materials blocking the holes of the screen drum on the screening effect.
[0007] Preferably, the top ends of the plurality of impact rods are fixedly connected to a base; the top of the base is detachably fixedly connected to a top seat by fasteners; the base and the top seat are mounted on a cross bar. Relying on the above arrangement, the position of the impact rod can be adjusted before use, so that the staff can adjust it according to the working conditions and carry out targeted strikes on areas prone to blockage, thereby improving the anti-blockage effect.
[0008] Preferably, the top of the bracket is connected to an adjusting screw via a thread; the bottom end of the adjusting screw is rotatably connected to a telescopic rod; the telescopic rod is located inside the slide groove; a spring is sleeved on the telescopic rod; the telescopic rod is located on the top of the cross bar, and during use, the staff can rotate the screw, and the screw will squeeze the telescopic rod, so as to adjust the compression degree of the spring, and then adjust the force with which the spring pushes the cross bar downward.
[0009] Preferably, a guide cylinder is fixedly connected to the bottom of the slide groove; a guide rod is fixedly connected to the bottom side of the cross bar; and the guide rod is inserted into the interior of the guide cylinder and is slidably connected thereto.
[0010] Preferably, a support frame is hinged on the bottom side wall of the bracket; a slider is slidably connected to the middle of the support frame; a screw sleeve is rotatably connected to the middle of the slider; a support screw is rotatably connected to the side of the bracket; the support screw passes through the screw sleeve and is slidably connected thereto; and a round rod is fixedly connected to one end of the cross bar close to the support frame.
[0011] Preferably, the bottom ends of the plurality of impact rods are fixedly connected to a wheel seat; and the bottom of the wheel seat is rotatably connected to a pulley.
[0012] The utility model is beneficial in that:
[0013] 1. The utility model is provided with a cross bar, a cam, a rotating shaft, a bracket and a striking rod. When in use, the motor drives the transmission shaft to rotate, and the transmission shaft drives the rotating shaft and the cam to rotate through gears and chains. The cross bar is lifted upward by the rotation of the cam, and the two ends of the cross bar slide in the chute. Then, when the cam rotates downward, the cross bar falls and drives the striking rod to hit the screen drum, thereby preventing the screen drum from being blocked and reducing the influence of the mixed fertilizer raw materials on the screening effect caused by the holes of the screen drum being blocked;
[0014] 2. The utility model is provided with an adjusting screw, a telescopic rod and a spring. When in use, the spring is located at the top of the cross bar, and the spring can assist in resetting the cross bar. During use, the staff can rotate the screw, and the screw will squeeze the telescopic rod to adjust the compression degree of the spring, and then the force of the spring to push the cross bar downward can be adjusted. Therefore, it can be adjusted according to the blockage situation to reduce the situation where the impact force is too large to damage the screen drum. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0016] Figure 1 It is a schematic diagram of the structure of the utility model;
[0017] Figure 2 This is a schematic diagram of the crossbar structure of the utility model;
[0018] Figure 3 This is a schematic diagram of the support structure of the utility model;
[0019] Figure 4 It is a structural schematic diagram of the support frame of the utility model.
[0020] In the figure: 11, box body; 12, motor; 13, transmission shaft; 14, screen drum; 15, bracket; 16, cross bar; 17, cam; 18, impact rod; 21, base; 22, top seat; 31, adjusting screw; 32, telescopic rod; 41, guide rod; 42, guide cylinder; 51, support frame; 52, support screw; 53, slider; 54, screw sleeve; 61, wheel seat; 62, pulley; 7, roller. DETAILED DESCRIPTION
[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0022] Specific examples are given below.
[0023] See also Figure 1-4As shown, a drum screen anti-blocking device comprises a box body 11; a motor 12 is fixedly connected to the side of the box body 11; a transmission shaft 13 is fixedly connected to the output end of the motor 12; a screen drum 14 is fixedly connected to the transmission shaft 13; brackets 15 are fixedly connected to both sides of the top of the box body 11; a slide groove is provided on the top of the bracket 15; a cross bar 16 is slidably connected in the slide groove; a plurality of impact rods 18 are provided at the bottom of the cross bar 16; the impact rod 18 is located at the top of the screen drum 14; a rotating shaft is rotatably connected to the side of the bracket 15; gears are fixedly connected to the rotating shaft and the transmission shaft 13; the gear A chain is installed on it; a cam 17 is fixedly connected to the end of the rotating shaft; the cross bar 16 is located at the top of the cam 17; when in use, the motor 12 drives the transmission shaft 13 to rotate, and the transmission shaft 13 drives the rotating shaft and the cam 17 to rotate through gears and chains, and the cross bar 16 is pushed up by the rotation of the cam 17. The two ends of the cross bar 16 slide in the slide groove, and then when the cam 17 rotates downward, the cross bar 16 falls and drives the impact rod 18 to hit the screen drum 14, so that the screen drum 14 can be prevented from being blocked, and the influence of the mixed fertilizer raw materials blocking the holes of the screen drum 14 on the screening effect is reduced.
[0024] Further, such as Figure 1-3 As shown, the top ends of the plurality of impact rods 18 are fixedly connected to a base 21; the top of the base 21 is detachably fixedly connected to a top seat 22 by fasteners; the base 21 and the top seat 22 are sleeved on the cross bar 16; when in use, the base 21 and the top seat 22 are sleeved on the cross bar 16 and can slide, and the base 21 and the top seat 22 are tightened and fixed on the cross bar 16 by fasteners, so that the position of the impact rod 18 can be adjusted before use, so that the staff can adjust it according to the working situation, carry out targeted strikes on areas prone to blockage, and improve the anti-blockage effect.
[0025] Further, such as Figure 3 As shown, the top of the bracket 15 is connected to an adjusting screw 31 by a thread; the bottom end of the adjusting screw 31 is rotatably connected to a telescopic rod 32; the telescopic rod 32 is located inside the slide groove; a spring is sleeved on the telescopic rod 32; the telescopic rod 32 is located at the top of the cross bar 16; when in use, by setting the spring at the top of the cross bar 16, the spring can assist the cross bar 16 in resetting. During use, the staff can adjust the compression degree of the spring by rotating the screw, and the screw will squeeze the telescopic rod 32, so as to adjust the force of the spring to push the cross bar 16 downward, so as to adjust according to the blockage situation and reduce the situation where the impact force is too large to damage the screen drum 14.
[0026] Further, such as Figure 3As shown, a guide cylinder 42 is fixedly connected to the bottom of the slide groove; a guide rod 41 is fixedly connected to the bottom side of the cross bar 16; the guide rod 41 is inserted into the interior of the guide cylinder 42 and is slidably connected thereto; when in use, when the cross bar 16 moves up and down, the cross bar 16 will drive the guide rod 41 to move up and down, and the guide rod 41 slides in the guide cylinder 42, thereby guiding the cross bar 16, so that the cross bar 16 can move up and down stably.
[0027] Further, such as Figure 3-4 As shown, a support frame 51 is hinged on the bottom side wall of the bracket 15; a slider 53 is slidably connected to the middle part of the support frame 51; a screw sleeve 54 is rotatably connected to the middle part of the slider 53; a support screw 52 is rotatably connected to the side of the bracket 15; the support screw 52 passes through the screw sleeve 54 and is slidably connected thereto; a round rod is fixedly connected to one end of the cross bar 16 close to the support frame 51; when in use, the staff can drive the screw barrel to move by rotating the support screw 52, and the support screw 52 rotates to drive the screw barrel to move. During the movement of the screw barrel, the slider 53 will be pushed to slide upward, and the screw barrel will rotate inside the slider 53, so as to push the support frame 51 to rotate clockwise, so that the top of the support frame 51 will lift the round rod, thereby lifting the cross bar 16, so that the cam 17 is separated from the cross bar 16, so as to stop the impact. Relying on this setting, the damage to the screen drum 14 caused by long-term impact can be reduced.
[0028] Further, such as Figure 3 As shown, the bottom ends of the plurality of impact rods 18 are fixedly connected to a wheel seat 61; the bottom of the wheel seat 61 is rotatably connected to a pulley 62; when in use, the impact rod 18 strikes downward, and while the impact rod 18 collides with the screen drum 14, a certain sliding friction will be generated between the bottom end of the impact rod 18 and the surface of the screen drum 14, and the rotation of the screen drum 14 will be affected. When in use, this embodiment relies on setting the pulley 62 to roll with the surface of the screen drum 14, thereby reducing friction, reducing wear on the screen drum 14, and facilitating the rotation of the screen drum 14.
[0029] Further, such as Figure 4 As shown, the top of the support frame 51 is rotatably connected to a roller 7. When in use, the roller 7 is arranged at the top of the support frame 51 to contact the round rod, thereby reducing the friction between the top of the support frame 51 and the round rod surface bracket 15, reducing wear, and facilitating the lifting of the cross bar 16.
[0030] Working principle: when in use, the motor 12 drives the transmission shaft 13 to rotate, and the transmission shaft 13 drives the rotating shaft and the cam 17 to rotate through gears and chains. The cam 17 rotates to push up the cross bar 16, and the two ends of the cross bar 16 slide in the slide groove. Then, when the cam 17 rotates downward, the cross bar 16 falls and drives the impact rod 18 to hit the screen drum 14, so as to prevent the screen drum 14 from being blocked and reduce the influence of the mixed fertilizer raw materials on the screening effect caused by the holes of the screen drum 14. The base 21 and the top seat 22 are sleeved on the cross bar 16 and can slide. The base 21 and the top seat 22 are connected by the cross bar 16. The fasteners are tightened and fixed on the cross bar 16, so that the position of the impact rod 18 can be adjusted before use, so that the staff can adjust it according to the working situation, and carry out targeted strikes on the areas that are prone to blockage to improve the anti-blocking effect. By setting a spring at the top of the cross bar 16, the spring can assist the cross bar 16 in resetting. During use, the staff can adjust the compression degree of the spring by rotating the screw, and the screw will squeeze the telescopic rod 32, so as to adjust the force of the spring to push the cross bar 16 downward to impact, so as to adjust according to the blockage situation. , to reduce the situation where the impact force is too large to damage the screen drum 14. When the cross bar 16 moves up and down, the cross bar 16 will drive the guide rod 41 to move up and down. The guide rod 41 slides in the guide cylinder 42, so it can guide the cross bar 16, so that the cross bar 16 can move up and down stably. When in use, the staff can rotate the support screw 52, and the support screw 52 rotates to drive the screw barrel to move. During the movement of the screw barrel, the slider 53 is pushed to slide upward, and the screw barrel rotates inside the slider 53, so as to push the support frame 51 to rotate clockwise, so that the support frame The top of 51 lifts the round rod, thereby lifting the cross bar 16, so that the cam 17 is separated from the cross bar 16, which can stop the impact. Relying on this setting, the damage to the screen drum 14 caused by long-term impact can be reduced. The impact rod 18 hits downward. When the impact rod 18 hits the screen drum 14, a certain sliding friction will be generated between the bottom end of the impact rod 18 and the surface of the screen drum 14, and the rotation of the screen drum 14 will be affected. When this embodiment is in use, the pulley 62 is set to roll with the surface of the screen drum 14, so as to reduce friction, reduce wear on the screen drum 14, and facilitate the rotation of the screen drum 14.
[0031] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.
[0032] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.
Claims
1. A drum screen anti-clogging device, comprising a box body (11); a motor (12) is fixedly connected to the side of the box body (11); a transmission shaft (13) is fixedly connected to the output end of the motor (12); a screen drum (14) is fixedly connected to the transmission shaft (13); the characteristics are: The top sides of the box body (11) are fixedly connected with brackets (15); a slide groove is provided at the top of the bracket (15); a cross bar (16) is slidably connected in the slide groove; a plurality of impact rods (18) are provided at the bottom of the cross bar (16); the impact rod (18) is located at the top of the screen drum (14); a rotating shaft is rotatably connected to the side of the bracket (15); gears are fixedly connected to the rotating shaft and the transmission shaft (13); a chain is installed on the gear; a cam (17) is fixedly connected to the end of the rotating shaft; and the cross bar (16) is located at the top of the cam (17).
2. A drum screen anti-clogging device according to claim 1, characterized in that: The top ends of the plurality of impact rods (18) are all fixedly connected to a base (21); the top of the base (21) is detachably fixedly connected to a top seat (22) via a fastener; the base (21) and the top seat (22) are sleeved on the crossbar (16).
3. The drum screen anti-clogging device according to claim 1, characterized in that: The top of the bracket (15) is connected to an adjusting screw (31) via a thread; the bottom end of the adjusting screw (31) is rotatably connected to a telescopic rod (32); the telescopic rod (32) is located inside the slide groove; a spring is sleeved on the telescopic rod (32); the telescopic rod (32) is located at the top of the cross bar (16).
4. A drum screen anti-clogging device according to claim 3, characterized in that: A guide cylinder (42) is fixedly connected to the bottom of the slide groove; a guide rod (41) is fixedly connected to the bottom side of the cross bar (16); the guide rod (41) is inserted into the guide cylinder (42) and is slidably connected thereto.
5. The drum screen anti-clogging device according to claim 1, characterized in that: A support frame (51) is hingedly connected to the side wall of the bottom of the bracket (15); a slider (53) is slidably connected to the middle of the support frame (51); a screw sleeve (54) is rotatably connected to the middle of the slider (53); a support screw rod (52) is rotatably connected to the side of the bracket (15); the support screw rod (52) passes through the screw sleeve (54) and is slidably connected thereto; and a round rod is fixedly connected to one end of the cross bar (16) close to the support frame (51).
6. The drum screen anti-clogging device according to claim 1, characterized in that: The bottom ends of the plurality of impact rods (18) are all fixedly connected to a wheel seat (61); the bottom of the wheel seat (61) is rotatably connected to a pulley (62).
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