CN212820235U - Tooth plate of pulverizer - Google Patents

Abstract

The utility model discloses a rubbing crusher pinion rack, include: a plate body, one side of which is provided with a plurality of crushing teeth; the telescoping device, it includes the screw rod, adjusting nut and compresses tightly the seat, the first end of screw rod is equipped with the connecting rod, be equipped with the spout that supplies the connecting rod to stretch into on the plate body, the first end of adjusting nut is equipped with the flange, compress tightly the seat and be used for being connected with the rubbing crusher shell, it is equipped with the accommodation hole that is used for holding the flange to compress tightly the seat and be close to the face of rubbing crusher shell one side, it is equipped with the centre bore that communicates with the accommodation hole to compress tightly the seat and keep away from the face of rubbing crusher shell one side, the second end that accommodation hole. So set up, through twisting adjusting nut soon, thereby adjusting nut and screw rod close each other soon and drive the screw rod along axial displacement, and the connecting rod of the first end of screw rod drives the plate body and rotates around the pin joint of plate body and casing when sliding in the spout on the plate body to reach the effect in clearance between adjustment hammer leaf and the plate body.

Description

Tooth plate of pulverizer

Technical Field

The utility model relates to a hammer mill technical field especially relates to a rubbing crusher pinion rack.

Background

In the prior art, a hammer mill is provided with a casing, the casing is provided with a feed inlet and a discharge outlet, a machine shaft is arranged on a casing seat in the casing, a hammer sheet frame is arranged on a machine shaft, a radial hammer sheet is hinged on the hammer sheet frame, the machine shaft extends out of the casing, a machine shaft head extending out of the casing is provided with a power transmission wheel, and a toothed plate is embedded in the inner wall of a casing cover. When the hammer mill works, the power machine drives the crankshaft of the hammer mill to rotate, the crankshaft rotates to drive the hammer sheets to rotate circumferentially in the shell, materials enter from the feeding hole, are crushed by the impact between the hammer sheets which rotate and the fixed toothed plates, and the materials which are crushed into fine powder are discharged from the discharging hole.

But current rubbing crusher pinion rack is fixed embedding usually on the casing inner wall, and when the spindle rotated and drives the hammer leaf rotatory along the circumference in the casing, the clearance between the circumference that the hammer leaf rotatory place and pinion rack place circumference was fixed, can not adjust, is not suitable for smashing different materials. Therefore, how to solve the problem that the gap between the toothed plate and the hammer sheet of the hammer mill in the prior art cannot be adjusted to crush different materials is urgently needed by the technical personnel in the field.

SUMMERY OF THE UTILITY MODEL

For solving the technical problem, the utility model provides a can adjust the rubbing crusher pinion rack of the clearance size between pinion rack and the hammer leaf.

In order to achieve the above object, the utility model provides a following scheme:

the utility model provides a rubbing crusher pinion rack, include: one end of the plate body is hinged with the crusher shell, and one side of the plate body, which is opposite to the hammer sheet of the crusher, is provided with a plurality of crushing teeth; the telescoping device, it includes screw rod, adjusting nut and compresses tightly the seat, the first end of screw rod be equipped with screw rod looks vertically connecting rod, be equipped with the confession on the plate body the connecting rod stretches into and gliding spout, adjusting nut with screw rod screw-thread fit, be equipped with on the periphery lateral wall of the first end of adjusting nut to the flange of radial extension, it is used for being connected with the rubbing crusher shell to compress tightly the seat, it is used for holding to compress tightly to be equipped with on the seat is close to the face of rubbing crusher shell one side the accommodation hole of flange, compress tightly the seat keep away from be equipped with on the face of rubbing crusher shell one side with the centre bore of accommodation hole intercommunication, the flange is arranged in the accommodation hole just adjusting nut's second end is followed the centre.

Further, a first bearing is installed between the flange and the crusher shell, and a second bearing is installed between the flange and the bottom of the accommodating hole.

Further, the first bearing and the second bearing are both thrust bearings.

Further, a buffer spring is arranged between the second bearing and the bottom of the accommodating hole.

Furthermore, a cushion block is arranged between the first bearing and the crusher shell.

Furthermore, the pressing seat is connected with the crusher shell through a fastener, a through hole for the fastener to penetrate through is formed in the pressing seat, a threaded hole in threaded fit with the fastener is formed in the position, opposite to the through hole, of the crusher shell, and the fastener penetrates through the through hole and is screwed with the threaded hole.

Furthermore, the pressing seat is provided with a set screw for tightly pushing and loosening the adjusting nut.

Furthermore, the peripheral side wall of the adjusting nut is provided with a screwing part, and the cross section of the screwing part perpendicular to the axial direction of the adjusting nut is rectangular or hexagonal.

Furthermore, each smash the tooth and be the triangular prism structure, each the both ends of smashing the tooth respectively with the plate body rotationally is connected, still be equipped with on the plate body and be used for locking and unblock smash the locking mechanism of tooth.

Furthermore, two ends of the crushing teeth are respectively provided with a pivot, and the plate body is provided with mounting holes for the two pivots to extend into and rotate; the locking mechanism comprises a plurality of positioning holes and/or comprises a threaded part at least arranged on one of the two pivots and a fixing nut matched with the threaded part.

The utility model discloses for prior art gain following technological effect:

the utility model discloses a rubbing crusher pinion rack, include: one end of the plate body is hinged with the crusher shell, and one side of the plate body, which is opposite to the hammer sheet of the crusher, is provided with a plurality of crushing teeth; the telescoping device, it includes the screw rod, adjusting nut and compress tightly the seat, the first end of screw rod is equipped with the connecting rod mutually vertically with the screw rod, be equipped with on the plate body and supply the connecting rod to stretch into and gliding spout, adjusting nut and screw rod screw-thread fit, be equipped with the flange of radial extension on the periphery lateral wall of the first end of adjusting nut, it is used for being connected with the rubbing crusher shell to compress tightly the seat, it is equipped with the accommodation hole that is used for holding the flange to compress tightly the seat on being close to rubbing crusher shell one side, it is equipped with the centre bore that communicates with the accommodation hole to compress tightly the seat on keeping away from rubbing crusher shell one side, the second end that accommodation hole. So set up, because the limiting displacement of accommodation hole, adjusting nut only can rotate and can not axial displacement, through twisting adjusting nut soon, thereby adjusting nut and screw rod close each other soon and drive the screw rod along axial displacement, the connecting rod of the first end of screw rod drives the plate body and rotates around the pin joint of plate body and casing when gliding on the spout of plate body to reach the effect in clearance between adjustment hammer leaf and the plate body.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural view of a toothed plate of a crusher in an embodiment of the present invention;

fig. 2 is a schematic structural view of a telescopic device in an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a plate body in an embodiment of the present invention;

FIG. 4 is a schematic structural view of a crushing tooth according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of an adjusting nut according to an embodiment of the present invention.

Description of reference numerals: 1. a plate body; 2. a housing; 3. a screw; 4. adjusting the nut; 5. a pressing seat; 6. a connecting rod; 7. a chute; 8. a flange; 9. a first bearing; 10. a second bearing; 11. a buffer spring; 12. cushion blocks; 13. tightening the screw; 14. a screwing part; 15. a pivot; 16. a set screw; 17. positioning holes; 18. a threaded portion; 19. fixing a nut; 20. a key; 21. a guide groove; 22. and (5) crushing teeth.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The utility model aims at providing a can adjust the rubbing crusher pinion rack of the clearance size between pinion rack and the hammer leaf.

In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description.

As shown in fig. 1-5, the embodiment of the present invention provides a tooth plate of a pulverizer, which comprises a plate body 1 and a telescopic device. Referring to fig. 1, a plate 1 is shown therein having one end adapted to be rotatably, e.g., hingedly, connected to a shredder housing 2. The plate body 1 is provided with a plurality of crushing teeth 22 at one side opposite to the hammer sheet, and the plate body 1 can be of an arc structure. Referring to fig. 2, the telescopic device comprises a screw rod 3, an adjusting nut 4 and a pressing seat 5. The first end of screw rod 3 is equipped with the axial looks vertically connecting rod 6 with screw rod 3, is equipped with on the plate body 1 to supply connecting rod 6 to stretch into and gliding spout 7, when connecting rod 6 slides in spout 7, can drive plate body 1 simultaneously and rotate around the pin joint of plate body 1 with casing 2, and spout 7 can also be crooked arc wall for the straight flute. The adjusting nut 4 is in threaded fit with the screw 3, and a flange 8 extending in the radial direction is arranged on the outer peripheral side wall of the first end of the adjusting nut 4. The pressing seat 5 is used for being connected with the crusher shell 2, an accommodating hole for accommodating the flange 8 is formed in the surface, close to one side of the crusher shell 2, of the pressing seat 5, and the depth of the accommodating hole is larger than or equal to the thickness of the flange 8. The surface of the pressing seat 5, which is far away from one side of the crusher shell 2, is provided with a center hole communicated with the accommodating hole. The flange 8 is placed in the receiving bore and the second end of the adjustment nut 4 protrudes from the central bore.

So set up, because the limiting displacement of accommodation hole, adjusting nut 4 can only rotate and can not axial displacement, through revolving adjusting nut 4 soon, thereby adjusting nut 4 closes with screw rod 3 each other soon and drives screw rod 3 along axial displacement, connecting rod 6 of the first end of screw rod 3 drives plate body 1 and rotates around the pin joint of plate body 1 with casing 2 when gliding in spout 7 on plate body 1 to reach the effect in clearance between adjustment hammer leaf and the plate body 1.

Referring to fig. 2, in order to prevent the screw 3 from rotating with the adjusting nut 4 when the adjusting nut 4 is screwed, a key 20 may be provided in a through hole of the housing 2 through which the screw 3 passes, and a guide groove 21 engaged with the key 20 may be provided in the screw 3, the guide groove 21 extending in the axial direction of the screw 3, and the key 20 and the guide groove 21 may be engaged to position the screw 3 in the circumferential direction, so that the screw 3 may be prevented from rotating with the adjusting nut 4 when the adjusting nut 4 is screwed.

Referring to fig. 2, in some embodiments, a first bearing 9 is mounted between the flange 8 and the shredder housing 2, and a second bearing 10 is mounted between the flange 8 and the bottom of the receiving hole. With this arrangement, the friction between the flange 8 and the bottom of the receiving hole, and between the flange 8 and the surface of the housing 2 can be reduced, thereby facilitating screwing of the adjusting nut 4. Alternatively, the first bearing 9 and the second bearing 10 are both thrust bearings, which are capable of withstanding large axial thrust forces.

Referring to fig. 2, in some embodiments, a buffer spring 11 is disposed between the second bearing 10 and the bottom of the receiving hole. For example, the damper spring 11 may be a disc spring or a general coil compression spring. Through setting up the spring, when the material between hammer leaf and the plate body 1 is harder, plate body 1 promotes screw rod 3, screw rod 3 promotes adjusting nut 4, adjusting nut 4 can compress buffer spring 11, reach the effect in clearance between automatically regulated hammer leaf and the plate body 1, make the great material of size can enter into between hammer leaf and the plate body 1 on the one hand, thereby make the breaker can adapt to the material of more size differences, improve rubbing crusher's crushing effect and efficiency, on the other hand can avoid leading to broken tooth or driving motor on hammer leaf or the plate body 1 to be blocked the problem of damage because the material is too hard.

In some embodiments, a spacer 12 is provided between the first bearing 9 and the shredder housing 2. The depth of the flange 8 and the first bearing 9 entering the accommodating hole can be adjusted by arranging the cushion block 12, and the flange and the first bearing are prevented from falling out of the accommodating hole.

In some embodiments, the pressing base 5 is connected to the crusher housing 2 through a fastening member, a through hole through which the fastening member can penetrate is formed in the pressing base 5, a threaded hole in threaded fit with the fastening member is formed in a position, opposite to the through hole, of the crusher housing 2, and the fastening member penetrates through the through hole and is screwed with the threaded hole. The compression degree of the buffer spring 11 by the compression seat 5 can be adjusted by adjusting the screwing depth of the fastener into the threaded hole.

In some embodiments, the pressing base 5 is provided with a set screw 13 for tightening and loosening the adjusting nut 4. Holding screw 13 with compress tightly 5 screw-thread fit to radially run through along compressing tightly seat 5, through setting up holding screw 13, make its top tighten adjusting nut 4's periphery lateral wall, can prevent at the in-process of broken material, make adjusting nut 4 not hard up because of reasons such as vibration, lead to the problem of clearance change between hammer leaf and the plate body 1.

In some embodiments, the adjusting nut 4 is provided with a screw portion 14 on the outer peripheral side wall, the cross section of the screw portion 14 perpendicular to the axial direction of the adjusting nut 4 is rectangular or hexagonal, and by providing the screw portion 14, an operator can conveniently screw the adjusting nut 4 with a wrench.

Referring to fig. 3 and 4, in some embodiments, each of the crushing teeth 22 has a triangular prism structure, and both ends of each of the crushing teeth 22 are rotatably connected to the plate body 1. The plate body 1 is also provided with a locking mechanism for locking and unlocking the crushing teeth 22. So set up, can loosen locking mechanism on the one hand, adjust the angle of triangular prism structure for the edge of triangular prism structure is relative with the hammer leaf, in order to improve the crushing effect of material, and on the other hand, after a certain edge of triangular prism structure becomes blunt, can change other edges, in order to improve the crushing effect of material, and the life of tooth 22 is smashed in the extension. Referring to fig. 4, in some embodiments, the crushing teeth 22 are provided at both ends thereof with pivots 15, and the plate body 1 is provided with mounting holes for the two pivots 15 to extend and rotate. The locking mechanism may include a positioning screw 16 screwed with the plate body 1 and positioning holes 17 provided on the pivot shaft 15, the number of the positioning holes 17 is plural, for example, three or six, and the positioning holes 17 are uniformly distributed along the circumferential direction of the pivot shaft. By screwing the set screw 16, the crushing teeth 22 are locked when the set screw 16 enters the set hole 17, and the crushing teeth 22 are unlocked when the set screw 16 slides out of the set hole 17. Of course, the locking mechanism may further include a threaded portion 18 provided at least on one of the two pivot shafts 15 and a fixing nut 19 engaged with the threaded portion 18. Referring to fig. 4, the two pivot shafts 15 are provided with screw portions 18 on the outer end surfaces thereof, and fixing nuts 19 are screwed to the nut portions, and the fixing nuts 19 are screwed, so that the crushing teeth 22 are locked when the fixing nuts 19 are abutted against the outer wall of the plate body 1, and the crushing teeth 22 are unlocked when the fixing nuts 19 are separated from the outer wall of the plate body 1. The two locking mechanisms can be used independently or cooperatively.

The principle and the implementation mode of the present invention are explained by applying specific examples in the present specification, and the above descriptions of the examples are only used to help understanding the method and the core idea of the present invention; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the concrete implementation and the application scope. In summary, the content of the present specification should not be construed as a limitation of the present invention.

Claims (10)

1. A rubbing crusher pinion rack, its characterized in that includes:

one end of the plate body is hinged with the crusher shell, and one side of the plate body, which is opposite to the hammer sheet of the crusher, is provided with a plurality of crushing teeth;

the telescoping device, it includes screw rod, adjusting nut and compresses tightly the seat, the first end of screw rod be equipped with screw rod looks vertically connecting rod, be equipped with the confession on the plate body the connecting rod stretches into and gliding spout, adjusting nut with screw rod screw-thread fit, be equipped with on the periphery lateral wall of the first end of adjusting nut to the flange of radial extension, it is used for being connected with the rubbing crusher shell to compress tightly the seat, it is used for holding to compress tightly to be equipped with on the seat is close to the face of rubbing crusher shell one side the accommodation hole of flange, compress tightly the seat keep away from be equipped with on the face of rubbing crusher shell one side with the centre bore of accommodation hole intercommunication, the flange is arranged in the accommodation hole just adjusting nut's second end is followed the centre.

2. The shredder toothed plate according to claim 1, wherein a first bearing is mounted between the flange and the shredder housing and a second bearing is mounted between the flange and the bottom of the receiving hole.

3. The shredder toothed plate of claim 2 wherein the first and second bearings are both thrust bearings.

4. The shredder toothed plate according to claim 2, wherein a damping spring is provided between the second bearing and the bottom of the receiving hole.

5. A shredder plate rack according to claim 2, wherein a spacer is provided between the first bearing and the shredder housing.

6. The tooth plate of the pulverizer as defined in claim 1, wherein the pressing base is connected with the pulverizer housing through a fastener, the pressing base is provided with a through hole through which the fastener can pass, the pulverizer housing is provided with a threaded hole in threaded engagement with the fastener at a position opposite to the through hole, and the fastener passes through the through hole and is screwed into the threaded hole.

7. The crusher toothed plate according to claim 1, characterized in that the pressing seat is provided with a set screw for tightening and loosening the adjusting nut.

8. The crusher toothed plate according to claim 1, characterized in that a screwing part is provided on the peripheral side wall of the adjusting nut, and the cross section of the screwing part perpendicular to the axial direction of the adjusting nut is rectangular or hexagonal.

9. The tooth plate of the pulverizer as defined in claim 1, wherein each of the pulverizing teeth is a triangular prism structure, both ends of each pulverizing tooth are rotatably connected with the plate body, and the plate body is further provided with a locking mechanism for locking and unlocking the pulverizing teeth.

10. The crusher toothed plate according to claim 9, wherein the crushing teeth are provided at both ends thereof with pivots, respectively, and the plate body is provided with mounting holes for the two pivots to extend into and rotate;

the locking mechanism comprises a plurality of positioning holes and/or comprises a threaded part at least arranged on one of the two pivots and a fixing nut matched with the threaded part.

Images