CN216800042U - Hammer head quick-changing device of hammer crusher - Google Patents

Abstract

The utility model provides a hammer head quick-changing device of a hammer crusher, which belongs to the technical field of hammer crusher parts and comprises a clamp ring and an end shaft stop block, wherein the clamp ring is fixed on a hammer disc at two ends of a hammer shaft, the end shaft stop block is detachably matched with the clamp ring in a limiting way, the clamp ring and the hammer shaft are coaxially arranged, the end shaft stop block is tightly pressed on the hammer disc through a limiting locking piece, the limiting locking piece is detachably connected with the end part of the hammer shaft, and the end shaft stop block comprises a self-locking piece for locking the limiting locking piece; the utility model not only can realize the quick replacement of the hammer head, but also ensures the stability and reliability of the axial limit of the hammer shaft by forming a self-locking structure through the end shaft stop block, the limit locking piece and the clamping ring.

Description

Hammer head quick-changing device of hammer crusher

Technical Field

The utility model relates to the technical field of hammer crusher parts, in particular to a hammer head quick-changing device of a hammer crusher.

Background

The hammer crusher is used as a crusher for crushing materials by utilizing an impact principle, has the characteristics of simple structure, high reliability, wide application range and the like, and is widely applied to industries such as mines, chemical industry, buildings, railways and the like. However, with the birth and rapid development of various novel crushing devices, the hammer crusher product faces a large competitive pressure, people pay more attention to rapidness and simplicity in later-stage maintenance while pursuing the capacity benefit of the hammer crusher, and strive to improve the comprehensive efficiency of the product and improve the market competitiveness by means of reducing the maintenance difficulty, reducing the equipment downtime, rapidly replacing damaged spare parts and the like.

The hammer crusher rotor is provided with a plurality of rows of hammer disks, the inside of a pin hole on the circumference of the rotor is provided with a hammer shaft in a penetrating way, hammers are arranged on the hammer shaft and distributed among the rows of hammer disks, the hammers are continuously worn in the working process, and the hammers need to be reversed after reaching a certain degree.

The hammer shaft of the existing hammer crusher mainly has two connection and positioning modes, one mode is that the hammer disk pin holes at the two ends of the rotor are counter bores, the hammer shaft is axially positioned through the hammer disks at the two ends, the hammer disk at the outermost side of the rotor needs to be completely removed during reversing, then the reversing is performed on each hammer head in sequence, the process is tedious, a large amount of time is consumed, the service time of equipment is greatly reduced, and the production is influenced. The other type is that the end covers are arranged on the hammer disc pin holes at the two ends of the rotor, so that the hammer shaft can be conveniently disassembled, but the bolts on the end covers are loosened under the vibration of the hammer shaft in the working process, and finally the end covers fall off, so that the use safety of the equipment is seriously influenced.

Therefore, a hammer head replacing device which is reliable in structure, high in operation efficiency and convenient and fast to maintain needs to be designed to improve the equipment replacing and maintaining efficiency of the hammer crusher.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a hammer head quick-changing device of a hammer crusher, which not only can realize quick change of a hammer head, but also ensures stable and reliable axial limiting of a hammer shaft by forming a self-locking structure through an end shaft stop block, a limiting locking piece and a clamping ring.

In view of the above, the present invention provides a hammer head quick-changing device for a hammer crusher, including a snap ring fixed on a hammer disk at two ends of a hammer shaft and an end shaft stop block detachably and limitedly engaged with the snap ring, wherein the snap ring and the hammer shaft are coaxially disposed, the end shaft stop block is pressed on the hammer disk through a limiting locking member, the limiting locking member is detachably connected with an end portion of the hammer shaft, and the end shaft stop block includes a self-locking member for locking the limiting locking member.

Furthermore, two symmetrical limiting flanges are arranged on the end face, far away from the hammer disc, of the clamping ring, and two symmetrical limiting side lugs extending outwards are arranged on the end face, opposite to the clamping ring, of the end shaft stop block.

Furthermore, spacing locking piece includes the round pin axle, the one end of round pin axle is equipped with the round pin axle cap, the center department of end axle dog is equipped with the counter sink with round pin axle, round pin axle cap complex.

Furthermore, a threaded pin is arranged at one end, away from the pin shaft cap, of the pin shaft, and a threaded hole matched with the threaded pin is formed in the end face of the hammer shaft.

Further, the diameter of the threaded pin is smaller than that of the pin shaft.

Furthermore, a U-shaped groove is formed in the limiting blocking edge, pin holes are formed in the centers of two end faces of the end shaft stop block, the limiting side lugs are arranged on the end shaft stop block, the pin holes are communicated with the counter bores, limiting pins penetrate through the pin holes, a limiting groove is formed in the side face of the pin shaft cap, and the width of the limiting groove is larger than the diameter of the limiting pins.

Furthermore, the limiting grooves are at least two symmetrical limiting grooves.

Furthermore, a groove corresponding to the pin hole is formed in the side wall of the counter bore.

The technical scheme of the utility model has the following beneficial effects:

1. according to the utility model, the end shaft stop block, the limiting locking piece and the snap ring are convenient to disassemble, the hammer shaft can be conveniently taken out, and the hammer head can be quickly replaced.

2. According to the utility model, the end shaft stop block, the limiting locking piece and the clamping ring form a self-locking structure, so that the axial limiting stability and reliability of the hammer shaft are ensured, and the operation stability of the whole equipment is improved.

Drawings

FIG. 1 is an exploded view of a hammer head quick change device of a hammer crusher of the present invention;

FIG. 2 is a schematic view of the end stop of the present invention;

FIG. 3 is a schematic structural view of a position limiting latch according to the present invention;

FIG. 4 is an elevational view of the end shaft stop of the present invention in an initial state in which it is installed in engagement with the snap ring;

FIG. 5 is an intermediate state view of the end shaft stop of the present invention installed in cooperation with the snap ring;

FIG. 6 is a front view of the position limiting latch, end shaft stop and snap ring of the present invention shown installed;

fig. 7 is a schematic view of the overall structure of the hammer head quick-change device of the hammer crusher on a hammer breaking rotor.

01. A hammer breaking rotor; 1. a hammer shaft; 11. a threaded hole; 2. a hammer head; 3. a hammer plate; 4. a snap ring; 41. limiting and blocking edges; 42. a U-shaped groove; 5. an end shaft stop block; 51. a pin hole; 52. limiting side lugs; 53. a spacing pin; 54. a countersunk hole; 541. a groove; 6. a limiting locking piece; 61. a pin shaft cap; 62. a pin shaft; 63. and (4) a threaded pin.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to fig. 1 to 7 of the embodiments of the present invention. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the utility model, are within the scope of the utility model.

As shown in fig. 1-3, 7: the utility model provides a hammer head quick change device of hammer crusher, including the snap ring 4 on the hammer disks 3 that is fixed in hammer spindle 1 both ends and can dismantle spacing complex end axle dog 5 with snap ring 4, snap ring 4 is coaxial setting with hammer spindle 1, end axle dog 5 compresses tightly on hammer disks 3 through spacing locking piece 6, can dismantle between the tip of spacing locking piece 6 and hammer spindle 1 and be connected, end axle dog 5 is including the auto-lock spare that is used for locking spacing locking piece 6.

Not only can realize 2 quick replacements of tup, form auto-lock structure through end axle dog 5, spacing locking piece 6 and snap ring 4 moreover, guaranteed the spacing reliable and stable of axial of hammer spindle 1.

According to one embodiment of the present invention, as shown in figures 1-5,

the end face, far away from the hammer disc 3, of the clamping ring 4 is provided with two symmetrical limiting flanges 41, and the end face, opposite to the clamping ring 4, of the end shaft stop block 5 is provided with two symmetrical limiting side lugs 52 extending outwards.

The limiting locking piece 6 comprises a pin shaft 62, a pin shaft cap 61 is arranged at one end of the pin shaft 62, and a counter sink 54 matched with the pin shaft 62 and the pin shaft cap 61 is arranged at the center of the end shaft stop block 5.

And a threaded pin 63 is arranged at one end of the pin shaft 62, which is far away from the pin shaft cap 61, and a threaded hole 11 matched with the threaded pin 63 is arranged on the end surface of the hammer shaft 1.

Wherein the diameter of the threaded pin 63 is smaller than the diameter of the pin shaft 62.

The limiting flange 41 is provided with a U-shaped groove 42, the two end faces of the end shaft stop block 5 provided with the limiting side lugs 52 are provided with pin holes 51 at the centers, the pin holes 51 are communicated with counter bores 54, limiting pins 53 penetrate through the pin holes 51, the side face of the pin shaft cap 61 is provided with a limiting groove 611, and the width of the limiting groove 611 is larger than the diameter of the limiting pins 53.

At least two of the limiting grooves 611 are symmetrical.

The side wall of the counter bore 54 is provided with a groove 541 corresponding to the pin hole 51.

Convenient dismantlement between end axle dog 5, spacing locking piece 6 and the snap ring 4 is convenient for realize hammer spindle 1 and takes out, can realize 2 quick replacements of tup, reduces the degree of difficulty of maintenance, change.

The installation method of the utility model comprises the following steps: as shown in fig. 4, firstly, the shaft end stopper 5 needs to be transversely placed, placed into the snap ring 4, and then rotated by 90 °, as shown in fig. 5, the two limiting side lugs 52 of the shaft end stopper 5 are clamped in the limiting flange 41 of the snap ring 4, and then the limiting pin 53 penetrates out from the pin hole 51 to the direction of the U-shaped groove 42, so that one end of the limiting pin 53 is inserted into the U-shaped groove 42, at this time, as shown in fig. 6, the limiting locking member 6 penetrates through the shaft end stopper 5 and the snap ring 4 respectively to be connected to the end surface of the hammer shaft 1, and at this time, the limiting pin 53 on the shaft end stopper 5 slides downwards under the influence of gravity and is just clamped in the limiting groove 611 of the limiting locking member 6.

As shown in fig. 6, when the rotor rotates 180 °, the lower limit pin 53 rotates to the upper side, and is still clamped in the limit groove 611 of the limit locking member 6 under the influence of gravity, so as to complete self-locking of the limit locking member 6, and prevent the limit locking member 6 from loosening during rotation or vibration.

The limiting pin 53 can simultaneously play a role in stopping rotation and loosening for the shaft end stop block 5 and the limiting locking piece 6. When the shaft end stop block 5 and the limiting locking piece 6 cannot rotate, the axial movement of the shaft end stop block and the limiting locking piece is limited, and the limiting of the axial direction of the hammer shaft 1 is finally completed.

The limiting locking piece 6, the limiting pin 53, the shaft end stop block 5 and the clamping ring 4 form a closed self-locking structure, and the axial limiting stability and reliability of the hammer shaft 1 are guaranteed.

When the hammer head 2 needs to be replaced, the limiting locking piece 6 can be screwed out only by dialing the two limiting pins 53 from the limiting grooves 611 on the limiting locking piece 6, then the limiting pins 53 are respectively taken out, finally, the shaft end stop block 5 is rotated by 90 degrees, the shaft end stop block 5 is separated from the limiting of the limiting retaining edge 41 on the clamping ring 4 and is taken out, the hammer shaft 1 can be taken out from the hammer disc 3, and the reversing or the replacement of the hammer head 2 is completed.

Not only can realize 2 quick replacements of tup, also can realize that the axial of hammer axle 1 is spacing, can bear the impact vibration of hammer axle 1, have very high reliability, greatly reduced 2 intensity of labour of changing of tup, reduced the maintenance duration of equipment, improved the maintenance convenience of equipment, prolonged the live time of equipment.

In the present invention, unless otherwise explicitly specified or limited, for example, it may be fixedly attached, detachably attached, or integrated; can be mechanically or electrically connected; the terms may be directly connected or indirectly connected through an intermediate, and may be communication between two elements or interaction relationship between two elements, unless otherwise specifically limited, and the specific meaning of the terms in the present invention will be understood by those skilled in the art according to specific situations.

While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the utility model as defined in the appended claims.

Claims (7)

1. The utility model provides a quick device of hammer crusher hammer which characterized in that: including snap ring (4) on hammer disks (3) that are fixed in hammer spindle (1) both ends and can dismantle spacing complex end axle dog (5) with snap ring (4), snap ring (4) are coaxial setting with hammer spindle (1), end axle dog (5) compress tightly on hammer disks (3) through spacing locking piece (6), can dismantle between the tip of spacing locking piece (6) and hammer spindle (1) and be connected, end axle dog (5) are including the auto-lock spare that is used for locking spacing locking piece (6).

2. The hammer crusher hammer quick change device of claim 1, wherein: the end face, far away from the hammer disc (3), of the clamping ring (4) is provided with two symmetrical limiting flanges (41), and the end face, opposite to the clamping ring (4), of the end shaft stop block (5) is provided with two limiting side lugs (52) which are symmetrical and extend outwards.

3. The hammer crusher hammer quick change device of claim 2, wherein: the limiting locking piece (6) comprises a pin shaft (62), a pin shaft cap (61) is arranged at one end of the pin shaft (62), and a counter sink (54) matched with the pin shaft (62) and the pin shaft cap (61) is arranged at the center of the end shaft stop block (5).

4. A hammer head quick change device for a hammer crusher according to claim 3, wherein: and a threaded pin (63) is arranged at one end, away from the pin shaft cap (61), of the pin shaft (62), and a threaded hole (11) matched with the threaded pin (63) is formed in the end face of the hammer shaft (1).

5. The hammer crusher hammer quick change device of claim 4, wherein: the diameter of the threaded pin (63) is smaller than that of the pin shaft (62).

6. A hammer head quick change device for a hammer crusher according to claim 3, wherein: be equipped with U type groove (42) on spacing flange (41), two terminal surface centers that are equipped with spacing side ear (52) on end axle dog (5) are equipped with pinhole (51), pinhole (51) and counter bore (54) intercommunication, run through in pinhole (51) spacing round pin (53), the side of round pin axle cap (61) is equipped with spacing groove (611), the width of spacing groove (611) is greater than the diameter of spacing round pin (53).

7. The hammer crusher hammer quick change device of claim 6, wherein: and a groove (541) corresponding to the pin hole (51) is arranged on the side wall of the counter bore (54).

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