CN212524405U - Crusher feed inlet shock absorber - Google Patents

Abstract

The utility model relates to a crusher feed inlet shock absorber, which relates to the technical field of coal crushing equipment and comprises a support frame arranged on the vertical surface of a crushing bin, wherein two horizontal crushing rollers are rotatably arranged in the crushing bin, and the upper end of the crushing bin is provided with a feed inlet; the supporting frame comprises a fixed frame and a movable frame which are arranged on the same side of the rotating shaft of the crushing roller; the fixed frame and the movable frame are arranged oppositely and are respectively positioned at the upper side and the lower side of the rotating shaft of the crushing roller; the side wall of the fixed frame opposite to the movable frame is provided with a damping spring which is circumferentially arranged, the other end of the damping spring is provided with an arc-shaped pressing plate, and a limit groove for the rotating shaft of the crushing roller to pass through is formed between the opposite arc-shaped pressing plates; the rotating shaft of the crushing roller is sleeved with a bearing, and the arc-shaped pressing plate is tightly pressed on the outer side of the bearing; the utility model discloses have the vibrations that can effectively reduce broken storehouse, the good effect of shock attenuation effect.

Description

Crusher feed inlet shock absorber

Technical Field

The utility model belongs to the technical field of coal crushing equipment's technique and specifically relates to a breaker feed inlet shock absorber is related to.

Background

Along with the demand of people for resources, the coal industry is rapidly developed, and the development of coal machinery is rapidly developed along with the development of the coal industry. In the coal mining process, the crushing of coal is an indispensable operation link, and raw coal or bituminous coal can be conveyed to the next link for processing and treatment after being crushed.

A chinese patent with publication number CN207056660 in the prior art discloses a coal crusher, which comprises a crushing bin and two crushing devices arranged on the crushing bin, wherein each crushing device comprises a crushing roller and a motor used for driving the crushing roller to rotate, a bracket is arranged on the crushing bin in an encircling manner, supporting blocks are arranged on the bracket at two sides of the crushing bin in a sliding manner, the crushing roller both ends of one of them breaker rotate and install on the supporting block, be provided with on the broken storehouse and be used for driving the gliding drive assembly of supporting block, drive assembly includes that both ends are connected respectively in the bracing piece of both sides supporting block, the drive block on the fixed stay pole, and the tip rotates the actuating lever of installing on the support, have on the actuating lever with drive block threaded connection in the screw thread section, the bottom downwardly extending in broken storehouse has the installation piece, the installation piece is worn to locate by the actuating lever, be equipped with the spacing subassembly that is used for restricting the rotatory action of actuating lever on the installation piece. The crushing roller can slide in order to adjust the clearance between two crushing rollers under the effect of actuating lever in broken storehouse, and when coal was broken through the clearance between two crushing rollers, reach the purpose of adjusting broken coal particle size to improve this coal breaker to the demand of different coal specifications, improve this coal breaker's practicality.

The above prior art solutions have the following drawbacks: when the crushing roller crushes coal, the crushing roller inevitably generates vibration, and the whole crushing bin shakes when the vibration is severe; the strong shaking can not only lead to the situation that parts on the crushing bin are loosened and even separated, but also influence the crushing effect to cause uneven crushing granularity, and can reduce the service life of the crushing bin to a certain extent.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, one of the purposes of the utility model is to provide a breaker feed inlet shock absorber, have the vibrations that can effectively reduce broken storehouse, the good effect of shock attenuation effect.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:

a crusher feed inlet shock absorber comprises a support frame arranged on the vertical surface of a crushing bin, two horizontal crushing rollers are rotatably arranged in the crushing bin, and a feed inlet is formed in the upper end of the crushing bin; the supporting frame comprises a fixed frame and a movable frame which are arranged on the same side of the rotating shaft of the crushing roller; the fixed frame and the movable frame are arranged oppositely and are respectively positioned at the upper side and the lower side of the rotating shaft of the crushing roller; the side wall of the fixed frame opposite to the movable frame is provided with a damping spring which is circumferentially arranged, the other end of the damping spring is provided with an arc-shaped pressing plate, and a limit groove for the rotating shaft of the crushing roller to pass through is formed between the opposite arc-shaped pressing plates; the crushing roller rotating shaft is sleeved with a bearing, and the arc-shaped pressing plate is tightly pressed on the outer side of the bearing.

By adopting the technical scheme, when the coal crusher works, coal blocks are poured into the coal crusher from the feeding hole above the crushing bin, and the two crushing rollers are driven by the motor to rotate towards the direction close to each other; when the crushing roller generates vibration in the process of crushing the coal blocks, vibration waves are transmitted to the damping spring through the arc-shaped pressing plate; the shock wave can be weakened and blocked through the shock absorption spring, so that the shock of the crushing bin caused by the fact that the shock wave is transmitted to the crushing bin can be effectively reduced; the damping spring effectively avoids the diffusion of shock waves, so that the crushing bin is more stable in working, and the service life of the crushing bin is prolonged to a certain extent; the arc-shaped pressing plate which is pressed outside the bearing can limit and fix the rotating shaft of the crushing roller, so that the rotating shaft of the crushing roller is more stable in working.

The present invention may be further configured in a preferred embodiment as: a vertical slideway is arranged on the inner side wall of the crushing bin, and the lower end of the movable frame is arranged in the slideway in a sliding manner along the vertical direction; a waist-shaped groove communicated with the slide way is formed in the crushing bin, and the waist-shaped groove is arranged along the sliding direction of the movable frame; the side of the movable frame is provided with an adjusting rod which penetrates out of the waist-shaped groove.

By adopting the technical scheme, when the tightness of the arc-shaped pressing plate needs to be adjusted, the movable frame can be driven by the adjusting rod to slide up and down along the length direction of the waist-shaped groove; the movable frame is moved to a proper height along the slide way, so that the tightness between the arc-shaped pressing plate and the bearing can be adjusted to a better position, and a better damping effect is achieved.

The present invention may be further configured in a preferred embodiment as: a gear positioned in the waist-shaped groove is rotatably arranged on the side surface of the movable frame, a first rack meshed with one side of the gear is arranged on a vertical surface of the waist-shaped groove, and the first rack is arranged along the sliding direction of the movable frame; and a vertical second rack is arranged on the other vertical surface of the waist-shaped groove in a sliding manner along the horizontal direction, and the second rack and the first rack are oppositely arranged and are respectively positioned at two sides of the gear.

By adopting the technical scheme, when the position of the movable frame is adjusted, the gear moves up and down along the length direction of the first rack; after the height of the movable frame is adjusted to a proper position, the second rack slides towards the direction close to the first rack gradually along the horizontal direction, and when the second rack moves to be meshed with the other side of the gear, the first rack and the second rack can limit and fix the gear from two sides of the gear; the gear is limited and fixed, so that the movable frame can be fixed, and the movable frame is kept stable; in the same way, the second rack is moved out in the direction away from the first rack, so that the second rack is separated from the gear, and the movable frame can be released from being fixed.

The present invention may be further configured in a preferred embodiment as: one side of the second rack, which is far away from the first rack, is hinged with a connecting rod, and an eccentric wheel close to one side of the second rack is rotatably arranged on the crushing bin; the rotating shaft of the eccentric wheel penetrates out of the outer side wall of the crushing bin, and the other end of the connecting rod is hinged with the long shaft end of the eccentric wheel.

By adopting the technical scheme, when the eccentric wheel rotates towards the direction close to the second rack, the second rack is driven by the connecting rod to gradually move towards the direction close to the first rack; when the rotating shaft of the eccentric wheel rotates in the direction far away from the first rack, the second rack moves in the direction far away from the first rack under the driving of the connecting rod; the position of the second rack can be conveniently adjusted under the mutual matching of the eccentric wheel and the connecting rod.

The present invention may be further configured in a preferred embodiment as: and a coaxial turntable is fixedly mounted on a rotating shaft of the eccentric wheel, and the turntable is positioned on the outer side wall of the crushing bin.

Through adopting above-mentioned technical scheme, the carousel can provide the impetus for the user to can convenience of customers will come to rotate the axis of rotation of eccentric wheel.

The present invention may be further configured in a preferred embodiment as: the upper end of the movable frame is symmetrically provided with rubber cushions which are respectively positioned on two sides of the arc-shaped pressing plate.

By adopting the technical scheme, when the movable frame is upwards and gradually close to the fixed frame, the upper end of the movable frame can be prevented from being in direct contact with the lower end of the fixed frame through the rubber cushion, so that the soft contact between the upper end of the movable frame and the lower end of the fixed frame is realized; thereby reducing the extrusion abrasion between the fixed frame and the movable frame and protecting the fixed frame and the movable frame; meanwhile, the propagation of vibration can be reduced, and the effect of shock insulation is achieved.

The present invention may be further configured in a preferred embodiment as: install in the crushing storehouse and be located crushing roller both sides and vertical thickening plate respectively, all be provided with the shock pad on the relative lateral wall of thickening plate.

By adopting the technical scheme, when the crushing roller crushes the coal blocks, part of the coal blocks can splash everywhere; the structural strength of the inner side wall of the crushing bin can be enhanced through the thickened plate arranged on the inner side of the crushing bin, and the condition that the inner side wall of the crushing bin is impacted and deformed by splashed coal blocks is avoided, so that the side wall of the crushing bin can be well protected; and the shock pad can play a better role in buffering and protecting, thereby avoiding the generation of vibration.

The present invention may be further configured in a preferred embodiment as: one side of the damping plate, which is away from the damping pad, is provided with a plurality of horizontal buffer springs, and the other ends of the buffer springs are fixed with the inner side wall of the crushing bin.

By adopting the technical scheme, when the coal block with larger volume impacts one side of the thickened plate, the thickened plate can extrude the buffer spring to contract the buffer spring; can play the effect of buffering to the coal cinder through buffer spring, buffer spring will produce reverse elasticity afterwards and make the coal cinder pop out towards the direction of central crushing roller to the coal cinder that can help the skew resets fast, and then makes it can be broken smoothly.

To sum up, the utility model discloses a following at least one useful technological effect:

1. when the crushing roller generates vibration in the process of crushing the coal blocks, vibration waves are transmitted to the damping spring through the arc-shaped pressing plate; the shock wave can be weakened and blocked through the shock absorption spring, so that the shock of the crushing bin caused by the fact that the shock wave is transmitted to the crushing bin can be effectively reduced; the damping spring effectively avoids the diffusion of shock waves, so that the crushing bin is more stable in working, and the service life of the crushing bin is prolonged to a certain extent; the rotating shaft of the crushing roller can be limited and fixed through the arc-shaped pressing plate tightly pressed on the outer side of the bearing, so that the rotating shaft of the crushing roller is more stable in work;

2. the structural strength of the inner side wall of the crushing bin can be enhanced through the thickened plate arranged on the inner side of the crushing bin, and the condition that the inner side wall of the crushing bin is impacted and deformed by splashed coal blocks is avoided, so that the side wall of the crushing bin can be well protected; and the shock pad can play a better role in buffering and protecting, thereby avoiding the generation of vibration.

Drawings

FIG. 1 is a schematic view of the overall structure of the crushing bin of the present invention when installed therein;

FIG. 2 is a schematic sectional view of the layout structure of the crushing chamber of the present invention;

FIG. 3 is a schematic view showing a partial structure of the supporting frame of the present invention;

fig. 4 is a schematic sectional view showing a partial structure of the eccentric wheel under the supporting frame.

Reference numerals: 1. a support frame; 2. a crushing roller; 3. a feed inlet; 4. a fixed mount; 5. a movable frame; 6. a limiting groove; 7. a damping spring; 8. an arc-shaped pressing plate; 9. a slideway; 10. a waist-shaped groove; 11. adjusting a rod; 12. a gear; 13. a first rack; 14. a second rack; 15. a connecting rod; 16. an eccentric wheel; 17. a turntable; 18. a rubber cushion; 19. thickening the plate; 20. a shock pad; 21. a buffer spring.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1 and 2, for the utility model discloses a crusher feed inlet shock absorber, which comprises two support frames 1 installed on the same vertical surface of a crushing bin. Two horizontal crushing rollers 2 side by side are installed to the crushing storehouse internal rotation, and the middle part of crushing roller 2 is provided with along 2 length direction align to grid of crushing roller, and the grid between two crushing rollers 2 is crisscross setting each other. The rotating shafts of the two crushing rollers 2 are driven by the motor to rotate in the direction of approaching each other.

As shown in fig. 2 and 3, a feed inlet 3 facing the crushing roller 2 is provided right above the crushing bin, and the two support frames 1 are respectively located at one end of the rotating shaft of the respective crushing roller 2. The supporting frame 1 comprises a fixed frame 4 which is fixedly arranged on the inner side wall of the crushing bin and positioned above the rotating shaft of the crushing roller 2 and a movable frame 5 which is positioned below the rotating shaft of the same crushing roller 2. The fixed frame 4 and the movable frame 5 are arranged oppositely and symmetrically on the upper side and the lower side of the rotating shaft of the same crushing roller 2. The opposite side walls of the fixed frame 4 and the movable frame 5 are in a semi-circular arc shape, and damping springs 7 are circumferentially and circumferentially fixed on the opposite side walls at intervals. The opposite side walls of the fixed frame 4 and the movable frame 5 are respectively and fixedly provided with arc-shaped pressing plates 8 through respective damping springs 7, and the two arc-shaped pressing plates 8 are arranged oppositely. The limiting groove 6 for the rotating shaft of the same crushing roller 2 to pass through is formed between the two opposite arc-shaped pressing plates 8, the bearing positioned between the two arc-shaped pressing plates 8 is sleeved on the rotating shaft of the crushing roller 2, and the arc-shaped pressing plates 8 positioned on two sides are tightly pressed on the outer side wall of the bearing. The upper end of the movable frame 5 is symmetrically provided with rubber cushions 18 which are respectively positioned at two sides of the arc-shaped pressing plate 8, and the upper ends of the rubber cushions 18 are tightly propped against the lower end surface of the fixed frame 4.

As shown in fig. 3 and 4, two vertical slideways 9 are arranged on the inner side wall of the crushing bin and are respectively positioned below the rotating shafts of the opposite crushing rollers 2 (see fig. 2), and the lower ends of the movable frames 5 are arranged in the respective slideways 9 in a sliding manner along the vertical direction. The outer side wall of the crushing bin is also provided with two waist-shaped grooves 10 which are respectively communicated with the respective slide ways 9, and the waist-shaped grooves 10 are arranged along the sliding direction of the movable frame 5. An adjusting rod 11 penetrating out of the waist-shaped groove 10 is fixedly installed on one side, facing the waist-shaped groove 10, of the movable frame 5, and the adjusting rod 11 is perpendicular to the movable frame 5. The side surface of the movable frame 5 is also rotatably provided with a gear 12 positioned in the waist-shaped groove 10, and the gear 12 is positioned above the adjusting rod 11.

As shown in fig. 3 and 4, a first rack 13 engaged with one side of the gear 12 is fixedly disposed on a vertical surface of the kidney-shaped groove 10, and the first rack 13 is disposed along the sliding direction of the movable frame 5. A vertical second rack 14 is arranged on the other vertical surface of the waist-shaped groove 10 in a sliding manner along the horizontal direction, and the first rack 13 and the second rack 14 are arranged oppositely and are respectively positioned at two sides of the gear 12. Two eccentric wheels 16 which are respectively positioned at one side of the adjacent second racks 14 are rotatably arranged on the crushing bin, one side of the second rack 14 departing from the first rack 13 is hinged with a connecting rod 15, and the other end of the connecting rod 15 is hinged with the long shaft end of the adjacent eccentric wheel 16. The rotating shaft of the eccentric wheel 16 penetrates out of the outer side wall of the crushing bin, a coaxial turntable 17 is fixedly mounted on the rotating shaft of the eccentric wheel 16 after the rotating shaft penetrates out, and the turntable 17 is located on the outer side wall of the crushing bin. The connecting rod 15 at one end of the eccentric wheel 16 can be driven by rotating the rotary disc 17 to slide the second rack 14 in the direction close to or far away from the first rack 13.

As shown in FIG. 2, thickened plates 19 are mounted on the inner side walls of a set of vertical surfaces of the crushing bin, which are opposite to each other, and the thickened plates 19 are symmetrically mounted on two sides of the crushing roller 2 respectively. The opposite side walls of the two thickened plates 19 are fixedly paved with shock absorbing pads 20, and one side of each thickened plate 19, which is far away from the shock absorbing pad 20, is fixedly provided with a large number of buffer springs 21 which are uniformly arranged at intervals. Buffer spring 21 is the level and places, and buffer spring 21's the other end and relative broken storehouse inside wall fixed connection.

The implementation principle of the embodiment is as follows:

when the coal crusher works, coal blocks are poured into the coal crusher from a feeding hole 3 above the crushing bin, and the two crushing rollers 2 are driven by the motor to rotate towards the directions close to each other. When the crushing roller 2 generates vibration in the process of crushing coal blocks, the vibration wave is transmitted to the damping spring 7 through the arc-shaped pressing plate 8. Can weaken the separation with the shock wave through damping spring 7 to can effectively reduce the shock wave and transmit to broken storehouse and cause the vibrations in broken storehouse. Damping spring 7 has effectually avoided the diffusion of shock wave for broken storehouse is more stable at the during operation, can also prolong the life in broken storehouse to a certain extent. Can also carry out spacing fixed with the axis of rotation of crushing roller 2 through compressing tightly arc clamp plate 8 in the bearing outside, make the axis of rotation of crushing roller 2 more stable at the during operation.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims (8)

1. A crusher feed inlet shock absorber comprises a support frame (1) arranged on the vertical surface of a crushing bin, two horizontal crushing rollers (2) are rotatably arranged in the crushing bin, and a feed inlet (3) is formed in the upper end of the crushing bin; the method is characterized in that: the supporting frame (1) comprises a fixed frame (4) and a movable frame (5) which are arranged on the same side of the rotating shaft of the crushing roller (2); the fixed frame (4) and the movable frame (5) are arranged oppositely and are respectively positioned at the upper side and the lower side of the rotating shaft of the crushing roller (2); damping springs (7) circumferentially arranged in a surrounding manner are arranged on the side wall of the fixed frame (4) opposite to the movable frame (5), arc-shaped pressing plates (8) are arranged at the other ends of the damping springs (7), and limiting grooves (6) for the rotating shafts of the crushing rollers (2) to pass through are formed between the opposite arc-shaped pressing plates (8); the rotating shaft of the crushing roller (2) is sleeved with a bearing, and the arc-shaped pressing plate (8) is pressed on the outer side of the bearing.

2. The crusher feed inlet damper as claimed in claim 1, wherein: a vertical slideway (9) is arranged on the inner side wall of the crushing bin, and the lower end of the movable frame (5) is arranged in the slideway (9) in a sliding manner along the vertical direction; a waist-shaped groove (10) communicated with the slide way (9) is formed in the crushing bin, and the waist-shaped groove (10) is arranged along the sliding direction of the movable frame (5); an adjusting rod (11) penetrating out of the waist-shaped groove (10) is arranged on the side surface of the movable frame (5).

3. The crusher feed inlet damper as claimed in claim 2, wherein: a gear (12) positioned in the waist-shaped groove (10) is rotatably arranged on the side surface of the movable frame (5), a first rack (13) meshed with one side of the gear (12) is arranged on a vertical surface of the waist-shaped groove (10), and the first rack (13) is arranged along the sliding direction of the movable frame (5); and a vertical second rack (14) is arranged on the other vertical surface of the waist-shaped groove (10) in a sliding manner along the horizontal direction, and the second rack (14) and the first rack (13) are oppositely arranged and are respectively positioned on two sides of the gear (12).

4. A crusher feed inlet damper as claimed in claim 3 wherein: one side of the second rack (14) departing from the first rack (13) is hinged with a connecting rod (15), and an eccentric wheel (16) close to one side of the second rack (14) is rotatably arranged on the crushing bin; the rotating shaft of the eccentric wheel (16) penetrates out of the outer side wall of the crushing bin, and the other end of the connecting rod (15) is hinged with the long shaft end of the eccentric wheel (16).

5. The crusher feed inlet damper as claimed in claim 4, wherein: a coaxial turntable (17) is fixedly mounted on a rotating shaft of the eccentric wheel (16), and the turntable (17) is positioned on the outer side wall of the crushing bin.

6. The crusher feed inlet damper as claimed in claim 1, wherein: the upper end of the movable frame (5) is symmetrically provided with rubber soft pads (18) which are respectively positioned at two sides of the arc-shaped pressing plate (8).

7. The crusher feed inlet damper as claimed in claim 1, wherein: install in the crushing storehouse and be located respectively crushing roller (2) both sides and vertical thickening plate (19), all be provided with shock pad (20) on the relative lateral wall of thickening plate (19).

8. The crusher feed inlet damper as claimed in claim 7, wherein: one side of the thickening plate (19) departing from the shock pad (20) is provided with a plurality of horizontal buffer springs (21), and the other ends of the buffer springs (21) are fixed with the inner side wall of the crushing bin.

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