JPS58193741A - Spin stopper for conical crusher - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a spin stop device for a conical crusher.
In order to prevent the crusher head from being crushed by the eccentric body of the crusher, especially when the crusher is under no load and there is no material to be crushed in the crushing cavity, the deformation and frictional resistance of the elastomer is utilized. and a non-mechanical spin stop device that provides a resistive reverse torque.

A conical rock crusher generally uses a conical crusher head driven by an eccentric.

The head is rotated within a fixed conical crusher bowl, and extends conically between the crusher bowl and the head 0, forming a rotating cavity that alternately contracts and expands. In this cavity, the feed material is crushed during contraction and the crushed material falls towards the bottom of the cavity during expansion, once in a passage along the entire length of the cavity, depending on the rotational speed of the eccentric and other factors. Or exposed to Plow twice. The eccentric body is connected to the crusher directly or via a belt transmission and is rotated by a power IIK such as a log-shaped electric motor or the like via a speed reduction device.

General K, the bowl and head of the crusher are equipped with wear-resistant liners, respectively? It is called Ulliner (or Concape) or Mantle.

The fracturing cavity is effectively defined as the volume between the concave surface of the goal liner and the convex surface of the mantle.

Due to the inherent design of the crusher, when the crusher is under no load, the swiveling head has a tendency to rotate in the direction of rotation of the eccentric, and this is called the "head spin" phenomenon. When the crusher is filled with rock, the crusher head engages with the fixed crusher bowl through the rock particles and is prevented from rotating by its surface wrinkles*.

In some types of rotary crushers, because the radii of the opposing crushing surfaces are different, the crusher head is rotated in a counterclockwise direction, so that the crusher head is rotated in the opposite direction.
What is becoming is also ami. However, if the flow of rock to the crusher is interrupted for some reason, only the friction torque acting on the thrust bearing and journal bearing that support the crusher head in the frame will act to prevent the spin of the crusher head. In this case, in a crusher that uses a large radius spherical bearing for the crusher head, the resistance torque in the opposite direction t provided by this bearing is sufficient to prevent the head from spinning.

However, if the crusher is supported by a low-friction thrust bearing, sufficient reverse torque cannot be obtained and the head cannot be prevented from rotating under the frictional torque generated by the eccentric. , an auxiliary device known as a "spin stop device" is provided to suppress or prevent head spin while at the same time preventing a slow reverse 'f' during normal crushing loads.
It is necessary to make 5 rotations occur. Similarly, in a crusher where the crusher head is supported by a spherical thrust bearing with a relatively small medium diameter, the radius at which the effective friction II resistance acts is small, so it is necessary to obtain sufficient reverse torque from the bearing to prevent head spin. I can't. Therefore,
The device of the present invention can also be applied to such a pusher.

Spin motion of the crusher head is extremely undesirable for the following reasons.

(1) The high centrifugal force generated in the bearing system does not adversely affect the life of the bearing due to changes in the load pattern.

(2) The large radius of the bearing and the high relative speed of the crusher head make the bearing sufficiently smooth.

As a result of the centrifugal force acting on the lubricating oil of the bearing, the lubricating oil tends to run out easily and sufficient lubrication effect cannot be obtained.
If the bearings run out, heat builds up, damaging the bearings and causing seizures, thus requiring expensive repairs.

(3) When the crusher head spins at high speed, rocks that enter the crushing chamber of the conical crusher may fly out of the crusher, causing no harm to nearby construction workers or equipment.

(4) The liner for the crusher cruiser and the mantle for the crusher head are designed for relatively low-speed crushing action. When the rock falls into the crushing chamber, the excessive abrasive action caused by the rock that cracks into the shrinking gap between the crusher head, which spins and rotates at a relatively high speed, and the fixed single wheel, accelerates wear and tear on the head. This will shorten the service life of both the mantle and the liner.

(5) Rocks hitting the spinning crusher head cause surface shear on the mantle and liner, damaging the equipment. As a result, the O connections between the I-U and I-U liners and the head and the mantle tend to separate, loosening both members and causing early breakage.

Many devices have been designed to prevent crusher heads from spinning due to eccentrics during unloaded or free running motions. These K include various one-way clutches, automatic friction clutches, hydraulic transmissions,
I need a speed reducer.

Although such devices are generally effective when in good working order, they suffer from problems in construction complexity, cost, durability, maintainability, and long downtimes for maintenance and inspection.

The most commonly used one-way clutch completely stops rotation of the head under no load, but allows relatively free rotation in the opposite direction. However, if the bearing fails due to wear, oil depletion, contamination, or metal fatigue, the rotational biasing force applied to the head due to friction torque increases even when there is no load, exceeding the torque capacity of the clutch and damaging the clutch components. This not only causes damage to the crusher, but also damages important parts that make up the main structure of the crusher, and often causes external damage. Furthermore, it is necessary to provide a joint between the crusher head and the clutch to allow lateral displacement of the head 12 and prevent damage to the clutch. These fittings are either expensive pieces of equipment or will fail prematurely if installed and operated incorrectly.

The other devices mentioned above suffer from similar drawbacks due to damage or malfunction of the operating mechanism or control device O, which selectively performs the necessary operations depending on whether there is a load in the crusher or not. Also, the mechanical arrangement of each device is similar to that of the conical crusher O.
It is easily damaged by shocks, bumps, ivy, and vibrations caused by falling.

The problems caused by vibrations have not previously been recognized in this field. In the operation of a crusher, vibrations of the pinion cannot be avoided when the rock falls into the crusher and is crushed in the crushing chamber.

This vibration is damped by the additional rock present within the crusher and supported by the crusher's sturdy structure. However, at this time, a certain amount of vibration is also transmitted through the crusher to the transmission device, which is susceptible to vibration, and to the control mechanism and other structures which are susceptible to impact and fatigue damage, resulting in a shortened service life.

For the above reasons, in the field of crusher technology, it is important that the crusher is relatively inexpensive, simple in structure), durable and reliable, easy to maintain, and requires only minimally trained maintenance personnel As can be seen from the table, there has been a long period of effort to develop a spin stopper that would allow equipment maintenance to be performed with the shortest possible downtime.

It is therefore an object of the invention to provide a spin stop device for a conical crusher which is relatively inexpensive, durable and reliable.Another object of the invention is to provide a spin stop device for a conical crusher which is relatively inexpensive, durable and reliable. Therefore, it is an object of the present invention to provide a spin stop device that can be quickly and easily maintained and replaced. Yet another object of the invention is to provide a spin stop device for a conical crusher that does not require a separate joint in connection with the crusher head. It is a further object of the present invention to provide a spin stop device for a conical crusher which is capable of damping vibrations.It is a further object of the present invention to provide a spin stop device for a conical crusher which is capable of damping vibrations. It is an object of the present invention to provide a spin stop device that does not cause damage to the spinner. It is a further object of the present invention to provide a modified spin stop device which eliminates the disadvantages of conventional spin stop devices.

These and other objects of the present invention include an integral elastomer and a relatively rotating retention member, both of which may or may not be lubricated, and a non-lubricating member disposed on an axis parallel to the axis of the crusher. This is achieved by engaging the circumferential boundary surfaces facing each other in the circular shape 04'@ direction. Either one of the elastomer unit and the rotating member is attached to the crusher head, and the other is attached to the frame), so that the resistance silk is connected from the frame to the crusher head via the engaging member and the elastomer unit. is added.

The elastomer integral and the retaining member rotating relative to each other in the crusher are subjected to periodic torque increases and decreases that change in a sine curve shape. This sinusoidal amplitude and frequency depend on the cross-sectional shape of the interface between the retaining member and the elastomer. The amplitude represents the torque, and the frequency represents the relative rotation angle of the two members. However, the actual magnitude of these O values is determined by environmental factors such as the physical characteristics of the elastomer material, its thickness, the size and shape of the interface, temperature and lubrication.

If you decide on a meter that does not affect/compare the resistance silk ability,
Peeta OI! While the width or peak torque resistance is expressed, the distance between torque l-1 represents a one-turn displacement by the angle given by the formula W-360°/n (where I& is the number of sides or pieces of the boundary IiO). ).

Torque J1mm applied from the elastomer to the engaging part
#i, 2) 01 [Cause & occur. With the fluid-like pressure applied from the tazuz toma unit to the related boundary picture, 1) tj
It is the surface friction that acts to prevent the relative m@ between the elastomer body and the engaging member. The latter surface stiffness is influenced by whether the interface is lubricated and the value of the design meter mentioned above. The peak silk resistance is applied in a direction opposite to the direction of relative rotation between the engaging members.

When applying the present invention to an actual cone crusher, the selection of the appropriate /f parameter in the design depends on the different silks of the two forces applied to the head in opposite directions in the negative and unloaded conditions. are doing. In the unloaded state, the spin stop device shall be designed to provide at least an adequate amount of resistance to the frictional torques produced by the rapidly rotating eccentric, whereas in the loaded state, the spin stop device shall be designed to provide at least an adequate resistance silk to the frictional torques produced by the rapidly rotating eccentric, whereas in the loaded state, the lock being crushed will , it is necessary for the spin stop device to generate a torque that slowly rotates the crusher head in the opposite direction.

The knob-designed Nonoraha meter has a peak resistance torque that is greater than the friction torque of the eccentric body under no-load conditions, and is large enough to allow the rock being crushed to overcome the peak resistance torque during normal operation. The peak resistance torque is set to be small enough to apply a torque of 2 to the head, and to cause the heel' to rotate in the opposite direction. Depending on the rock nature and quality of the rock being crushed, the torque applied during crushing may be insufficient to stop the head due to peak torque resistance. 0 or more, which does not rotate in a circular manner but controls rotation in a conical shape while crushing, is a schematic explanation of the case where the present invention is applied to a general operating method.

Another advantage of the present invention is that it has the effect of suppressing head tension that would cause damage to 5-class JrlIIS products in the event of bearing failure. Upon occurrence, the tendency of the head to prematurely synchronize with the eccentric is indicative of crusher bearing failure. This is a rapidly progressing phenomenon that is often detected only after the damage has occurred.In the present invention, the failure condition is recognized by the operator and the crusher is spun out before it is stopped. This acts to generate sufficient deceleration torque on the eccentric to maintain the rotational speed at a low level.

Removal of the heyP spin reduces the crusher's unloaded (self-weight) state. The disadvantage of the spin stop device during crushing is that the reverse rotation is extremely difficult, so it is negligible.Since the word draw is given by the product of torque and rotational speed, Even if the torque increases, the product does not increase.

The elasticity of the elastomer allows the spin stop device to also function as an integral joint.

Therefore, the lateral components inherent in the pivoting movement of the head are easily absorbed by the elastic material of the elastomer and do not cause damage or excessive stress to any of the components of the crusher. In fact, the features of the present invention provide another useful advantage of absorbing and attenuating the impact.

The structure of the invention, its objects and advantages, will become apparent from the following detailed description of the preferred embodiments, taken in conjunction with the accompanying drawings.

In the accompanying drawings, the same reference numerals indicate the same or equivalent O.
Parts shown. Figure 1.2 #'c is from 1980l
U.S. patent application number @196 filed on October 14th
, 509 discloses a conical crusher having a fixed frame 10 with a peripheral mounting 7 flange 12 and mounted on a crimped fixed frame 1OFi support pace (not shown). Fixed. central hub 1
4 is supported on the frame by a series of radial arms 15. A cheek-shaped axially extending cheek 16 formed extending through the central hub 14 in the storage direction receives a similarly tapered end of an axially extending vertical shaft 18. An eccentric body 20 with a bevel ear 21 is attached to the vertical shaft 18, and a bevel gear 2
1 is driven by a bevel pinion 22 attached to one end of a drive shaft 7) 240. The drive shaft 24 is connected to a motor (not shown) via a pulley 26 and a drive belt. Bearing pusher, 2g or eccentric 20
C) installed in the mesh, eccentric 20C) - straight shaft)
A thrust bearing 30 supports the eccentric body 20 in the axial direction.

The shaft 18 has #I slip channels 32, 34 to pump these Fi lubricating oils to the bearings push &28 and thrust bearing 30, so that the eccentric 20 ii. Rotationally driven by friction loss.

The crusher head 36 is located above the vertical shaft 18 m<-
It is mounted on a spherical bearing 38 that is attached to the spherical bearing 38.

The crusher head 34i includes a lower transverse web 40 having an axially projecting central I-slot 42. A cylindrical jaw 44 extends in the axial direction through the central boss 42, and a bearing shaft 46 is lined on the inner periphery of the jaw 44.

As the eccentric body 20 rotates about the vertical shaft 18 within the bearing pusher 46, the axial thruster 44
The axis follows the pivot axis of the eccentric body 20.

Since the axis of the puller 44 coincides with the axis of the crusher head 36, as the eccentric body 20 rotates around the vertical shaft 18, the crusher head 36 performs a pivoting motion. It is supported by a spherical bearing 38aC, and the center of the spherical bearing 38 coincides with the pivot apex of the crusher head 36.

Crusher head 36Fi, crusher frame IO
It rotates in a fixed crusher 48 to which K is fixed.

The spacing between the crusher head 36 and the crusher wheel 48 determines the size of the crushed discharge material, and this spacing can be adjusted by an adjustment mechanism 50 that rotates the crusher wheel 48 within a threaded adjustment ring 52. By actuating the hook υ steel ejection cylinder 53, the adjustment ring 52 and the entire l can be raised and separated from the tenth-shaped support ring s4 provided at the top of the frame lO, 114 and thus without fracturing. 1m-1) Steel and other crushed materials fall between the crusher head and the male wheel.

The material to be crushed, which generally consists of rock for mining or ore for metallurgical extraction, is fed into a hopper 56 mounted on top of the rasher deck 48.

The rock falls into the contracting gear lug between the crusher wheel 48 and the crusher head 36 and is crushed by the pivoting motion of the crusher head. The crushed rock II attachment 7 falls between the flange 12 and the central hub 14 and exits the machine. When the crushing gear lugs are filled, the crusher produces a reaction force from the crusher 48 to the crusher head 36 through the crusher head pivoting L1 rock. This reaction force applied to the crusher head causes the crusher head to rotate in the direction opposite to the 0 rotation direction of the eccentric body 20 with respect to the crusher wheel. Although this reverse rotation is not necessarily required,
This allows the wand to swing into the crusher within the I-cru, thereby preventing excessive abrasion of the liners in both the I-cru and the head, thus extending the life of those liners.

If the supply of rock to the crusher is interrupted for some reason and the hopper 4-56 and the crusher become empty in the crushing gap between the crusher 48 and the crusher head 360, the rotating eccentric 20 and the crusher head bearing bush V &440 is greater than the resisting torque produced by the spherical bearing 38. In such a situation, unless a deliberate attempt is made to prevent it, the crusher head will begin to spin sequentially in the same direction as the rotating eccentric, reaching a speed f approaching or equal to the rotational speed of the RiI/cFi eccentric. . This thing tqFi
The crusher head 36 is extremely undesirable, mainly because it may pose a hazard to operating personnel.
When the rock spins at high speed and falls into the hola t4-55, the rock is violently thrown out of the hopper and is thrown into the air by a member of staff working nearby.
This is because it will collide with the equipment. Also, if the bearing runs out of oil due to the action of centrifugal force due to high speed rotation, the spherical bearing 38
4D damage may also occur. In addition, rocks collide with the crusher head that spins at high speed, and rocks break into the contraction gear lug between the spinning crusher head and the crusher lug, resulting in deep scratches on the wear surfaces of the head and lug. , its removal is facilitated.

The cracking of these rocks under virtually impact conditions is
They tend to generate high shear forces parallel to the liner surface and tend to break the bond between the crusher head and crusher wheel and each liner.

This connection is accomplished by a backing material injected between the crusher head and crusher wheel and each liner, typically overlaying epoxy or zinc. Failure of this bond causes both liners to become loose, resulting in premature failure before the end of their wear life.

In order to prevent the crusher head 36 from spinning under no-load conditions, and to allow the crusher head to yaw (rotate) in the opposite direction to the crusher wheel 48 during crushing operation or to keep it stationary, the crusher head 36 is A spin stop device 60 between the head 36 and the fixed vertical shaft 18
are combined. The spin stop device 60, best illustrated in FIG. 3.4, comprises a spindle 62 which is fixed to the top of the stationary shaft and extends axially upwardly therefrom. The upper end of the spindle 62eD has a reduced diameter at 63), while the lower end of the spindle forms a spindle flange 64. The 7-ring 64 has a plurality of axially extending holes through which suitable fasteners such as screws 65 are passed for fixing the spindle 62 to the fixed vertical shaft 7) 18C) III. 1) The tip of the screw 65 is inserted into a threaded hole jc aligned with the floor surface of the deep counterbore 66 of the m-shaft FIN part into which the spindle flange 64 is received.
[Becomes absorbed.]

The spindle 62 is connected to the lubrication channel 3 of the vertical shaft 18.
having an axial lubrication channel 68 aligned with 2;
Lubricating oil is routed through this channel 68 to the stopper 60, as will be described later. The axial lubrication channel 68 is formed in the floor of the shaft seat 966.
It is sealed by an OO-linda 69 in the ring groove.

The clutch block member 70 is properly installed at the top end KIi where the radius of the spindle 62 is reduced by the mechanism! has been established. This installation is done by attaching the mechanism to the member 70 using screws, etc.
The clutch block member 70 has a square shape with chamfered corners when viewed from a horizontal plane. It has a surface.Of course, it may have a shape other than a corner, for example, a symmetrical or asymmetrical polygon, a triangle with chamfered vertices, a star, a pentagon, a regular hexagon, a hexagon, etc., as those skilled in the art will understand. The clutch 1971 member 70 has an axial groove 74 into which the reduced diameter top end 63 of the spindle 62 is received.

A spindle plate 76 is screwed into the tip of the diameter-reduced top end 63 of the spindle, and the clutch 19 is connected to the spindle as described later.
71 The radial engagement of the member 70 with another O-element of the spin stop device prevents the member 70 from attempting to move upwardly off the spindle. An axial hole 78 drilled in the spindle plate 76 is aligned with a lubrication channel 68 formed in the spindle 62 such that lubricating oil flows through the lubrication channel 68 in the spindle 62.
is adapted to be guided to a multiple spin stop device.

An elastomer monolith 80 having an axial opening 81 is mounted within the crusher head 36C) in radial alignment with the clutch block member 7o. The axial opening 81 has the same shape and dimensions as the clutch block member 70 in a horizontal cross section. As described below, when the crusher head 36-IIX attempts to rotate,
The radial wall of the entrance 81o engages the corresponding radial wall of the clutch block member 70, creating a rounding resistance torque that prevents headspin.

The elastomeric unit 80 is secured to the locking collar 82 and mates with the internal threading 41184 of an axial recess 860 on the top of the locking collar 82Fi crusher head 36. The locking collar 82 has an annular flange 88 protruding into the center 11, and a pair of clamping rings 92.
0 supporting the elastomer unit 80 disposed between 4
Both rings 92, 94 and the elastomeric unit 80 tightened between the rings are secured to the flange 78 by suitable securing means such as a series of screws 96. These screws 96 are threaded through aligned holes in the clamp rings 92, 94 and the elastomer integral 80, one side 90 of the annular 7-run 88! (It is screwed into the inner circumferential threaded hole that is aligned and drilled.A black grating 98 is removably fixed on the top surface of the upper crank ring 92.) It is removably fixed to the top surface of the upper crank ring 92, and at the same time locks out dust, it spins once. The lubricating oil entering the stopper is limited to the inside of the cavity formed by both rings 92, 94!: elastomer integral 80 to prevent the lubricating oil from becoming contaminated.

Either a curved rotter nut 100 having a lower portion 102 with an inner circumference threaded (ioa) or an outer circumference threaded upper portion 102 of a locking collar 82 extending upwardly from the top end of the crusher head 36.
It is interlocked with the part. The top of the Rottanach 1000 is formed as an outwardly protruding radial seven runs 104 to which a feed grate 106 is secured with a suitable fastener such as a gel 108. supply supply) 10
6u, catches the rock falling into the hopper 56 and distributes it evenly VC into the shrinkage crushing gap between the rotating crusher head 36 and the stationary crusher bowl 48. It is of course possible to achieve the same objective by using a combination other than the lock nut and supply grate described above.

Next, the operation of the device configured as above will be explained. Since the crusher head 36 is pivotally supported by the eccentric body 20 and thrust-beared by the spherical bearing 38, it performs a pivoting motion with respect to the crusher bowl 48. If there is a rock in the crushing gap between the rotating head 36 and the fixed I-cru 48, the reaction torque applied from the crusher bowl 48 to the head 36 through the rock in the crushing ear lug will cause the crusher head 36F; Slowly rotates backwards. At this time, the crusher head 36
The inside of the /9shameul 48 is actually swung.

This rocking movement of the crusher head 36 within the crusher 48 is desirable for the following reasons. This is because the abrasive action between the liner of the crusher head and the Gekuru O liner that occurs when the crusher head rotates without rotating backwards can be minimized. be.

The torque generated by the eccentric body 20 in the direction of the eccentric axis of its cylindrical surface is transferred from the crusher wheel 48 to the head 36.
The reaction torque applied to is also much smaller than the magnitude of this torque, I/cs? The significant difference between the elastomeric and elastomeric elements is exploited in the present spin stop device by designing the elastomer monolith 80 as follows. That is, the clutch block member 70
While the torque required to rotate the T-elastomer monolith 80 within the axial opening 81 is greater than the torque applied by the rotating eccentric 20 to the bearing 44 in the gauge 42, the I-cruise through the rock in the crushing gap is 48 to the head 36 is also designed to be small. Therefore, is it possible for the crusher head to rotate in the opposite direction to the rotation direction of the eccentric body 20t?
When the device t is free-rotated with no load, it will not spin in the same direction as the eccentric rotation.

At this time, keep in mind the following points: When the crusher starts rotating, the friction torque applied from the bearing interface to the bearing 44 of the crusher head will be generated when the crusher is rolling under normal temperature. The friction torque of the bird reaches 〕
big. Therefore, in order to prevent or suppress hectospin during start-up, it is necessary to design the spin stop device such that there is some significant resisting torque (such as the torque applied through the bearing interface 20/44).

The second embodiment of the present spin stop device shown in Fig. S utilizes an elastomer body 80' having a special inner circumferential shape that is in contact with a square-shaped clutch locking member 70'.Axial opening 81' is formed on each inner side of 9, totaling 4C
1! ! 111110, and the opening 81' as a whole is symmetrical about the 0 axis of the device. Shirera each time 5 it
o is sharpened while concavely turning each corner of the opening 81'0 and b's narrow neck, and the edges of each side are sharpened at the center. ζ0
The inclined surface of the recess 0 is formed so that the clutch block member 70' can easily rotate in one direction and in the other direction (#, clockwise direction in FIG. 5). This configuration is intended to reduce the resistance torque applied by the spin stop device in the direction opposite to the rotation of the eccentric body.
It is desirable that a smooth reverse rotation can be obtained, and that the zero torque for stopping spin can be increased arbitrarily by changing the material and dimensions.

The aI3 embodiment of the present spin stop device shown in FIG. 6 uses an elastomer integral body 80' similar to the first hook, but a clutch having a cam element biased by a pair of springs with 112% ring pressure. A Zoroku member 70' may be used. Each wheel presser 112 is mounted in a horizontally formed slot 114 of the clutch locking member 70'IC through a pivot pin 116 so as to be freely movable, and is moved outwardly of the slot 114 by a leaf spring 118. is being energized towards. Crusha head rotates eccentrically and in opposite direction 1i
When it is slowly oscillated in the 5th WIO clockwise p direction, as the clutch 20 locking member 7010 rotates, the wheel chock 112 is pressed against the wall surface of the last member integral 80, and the wheel chock 112 is inserted into the slot 114. Inside ita no gune 118
When the elast Y is rotated against the rotation, the elast Y is released from the interfering relationship with the Y 80', so the desired reverse rotation of the head is not impaired by the head stop 112.
On the other hand, when the shaft rotates, the friction torque applied to the head bearing due to the eccentric body force tends to rotate the head and clutch block member 70' counterclockwise in the direction p. However, for this O11 roll, the elastomer is 80#
This is prevented by fitting the wheel stopper 112 into the axial opening 81'4D corner 120 formed in the axial opening 81'4D corner 120.

Of course, other means than the above may also be used for t)K to move the cam element back and forth to obtain an interference state and a non-interference state. s for advancing and retracting cam elements such as crown stops and claws! Rod type, electric type and hydraulic type actuators are well known, and the spin stop device of the present invention can be applied to any of them.

The resiliency of the elastomer unit 80'' supports the slight downward movement of the clutch block member 70'' and wheel chock 112 to prevent damage, while at the same time providing a separate coupling between the clutch block member and the frame. This eliminates the need to calculate tFfi. Similarly, the shocks and vibrations experienced by the device during normal operation, and the resulting micro-movements of the clutch components, are absorbed by the elastomer integral 80' and will not damage the wheel chock 112 or pivot pin 116.

The advantages of the present invention described above are related to the ability of the elastomeric material to absorb and dampen shock and vibrational forces. During crushing operations, when rocks are suddenly crushed, dynamic forces are generated internally, causing micro-movements and micro-deformations between the main JP2 components of the crusher. An example of this phenomenon is 9+! Section 111 ring jumps to the main frame on which it is mounted, fCb,? The ring produces movement relative to a segmented ring which is not threaded and is hydraulically or mechanically clamped. Such movement digs into the surfaces it is in contact with, causing heating, fatigue, and mechanical or structural failure.

The present invention includes a head-supported gills)--
Another mechanism for absorbing vibrations, shocks, and crushing particles generated within the crushing cavity by friction damping between the straight shaft and the clutch block member 700 supported by and bordering the frame. It also has the effect of providing a route. Any vibrations applied to the crusher herald c are damped by the frictional contact and friction losses at the bonded interface.

Maintenance work on the spin stop device according to the invention is very simple and can be easily carried out by the user's maintenance personnel. 106
It is sufficient to remove the cover grate 98 from the top force of the flanging cylinder 92.

In this state, the spin stop device can be inspected and any necessary repairs and parts replaced. Due to long-term use or frequent repeated use, the elastomer unit 80 has deteriorated and needs to be replaced.
When this happens, remove the screw 96 that fixes the crank 1 ring 92 and replace it with a new one made of elastomer (80 flfr).The clutch block member 70 is also a must!
Inspection [7, can be replaced in the same way. The cost of each of these parts is extremely low compared to one-way clutches and joints used in conventional equipment, but they are also highly durable and highly resistant to impact, abrasion, and FIO contamination. If abrasive dirt enters the structure of a one-way clutch,
Although abrasion damage is accelerated, even if similar dust intrusion occurs in the spin stop device of the present invention, the elastomer integrally deforms locally, and the dust particles are transferred to the elastomer that rotates while the clutch block member 70 is in contact with the elastomer. It is buried within the wall and held there temporarily.

When the dust particles pass through a part of the corner of the clutch block member 70 or over the dust particles, the dust particles are discharged from the wall of the elastomer body and are removed from the lubrication channel 6 along with the lubricating oil.
8.74 and down into the spin stop and is washed away.

Based on the above explanation, it is easy to make various modifications to the preferred embodiments of the present invention described above. For example, the relative positions of the clutch block member 70 and the elastomer unit 80 may be exchanged, the elastomer unit 80 may be fixed to a fixed spindle, and the clutch block member 70 may be fixed to the crusher head 36&C so as to rotate together with it. It's okay. Also, the location of the spin stop device within the crusher can be varied. In the above embodiment, a spin stop device is provided at the apex of rotation of the crusher head O (the intersection of the axis of the crusher and the axis of the crusher head), and the motion component in the lateral direction of the relative movable parts of the spin stop device is K so that the bending in the lateral direction to the spindle 62 can be ignored. The head 36 is mainly caused by resistance deformation of the elastomer.
Ktl[) is generated, which spins together with the eccentric body 20. It is preventing. However, the modification method for generating the necessary resistance torque to the head 36 is not limited to this, and it is of course possible to adopt another method without departing from the gist of claim H.

[Brief explanation of the drawing]

Figure 1 is a front sectional view of a crusher including the spin stop device of the present invention, Figure 2 is a plan sectional view of the crusher base shown in Figure 1, and Figure 3 is used in the crusher shown in Figure 1. An enlarged front sectional view showing the top part of the crusher head,
Fig. 4 is a plan view taken along line 4-4* in Fig. 3, Fig. 5 is a plan view partially showing a second embodiment of the present invention having a special shape of an elastomer slender body crab, and Fig. 6. FIG. 7 is a plan view partially showing a third embodiment of the present invention in which the clutch block member is provided with a birdcage stop. <Explanation of symbols> lO...Fixed frame, 12...Mounting flange, 1
4... Central hub, 15 - Radial arm, 16 - Axial direction gear, 18 - Vertical shaft, 20 - Eccentric body,
21 bevel ears, 22... bevel binions, 24...
... Drive shaft, -26... Gooley, 28...
For bearing brush, 30 Thrust bearing, 32.34...
Lubrication channel, 36... Crusher head, 38...
- Spherical bearing, 40... Lower transverse web, 42... Central knife, 44... Axial direction closing a, 46... Bearing pusher, 48... Tarasshagekuru, 50... Adjustment mechanism, 52... ... Gangbushi IJng, 53... Release cylinder,
56...Honno 9-160...Spin stop device, 6
2...Spindle, 63...Spindle relay, 6
4...7 lunge, 65...screw, 66...floor seat, 68...lubrication channel, 69...0-ring, 7
0...Clutch block member, 72...Key, 73
...Slot, 74...Axial direction closing tee, 76...Spindle relay), 78...Opening, 82 River lock collar, 84...Threaded wall, 86...Axis direction recess, 88
... yielding flange, 90... annular surface, 92.94.
... Crank ring, 96 ... Screw, 98 ... Cover grate, 100 ... Concession lock nut, lO2.
・Lower part, 104...Radial direction 7/J, 106・
...Supply grade, 108...Volt, llO...
Recessed portion, 112... Wheel stopper, 114... Slot, 1
16... Pivot pin, 118... Leaf spring, 12G-.
opening corner. Applicant: Rex Nord Inc. Maruyama! 1FIIJ!
228

Claims (5)

[Claims] (1) A spin stop device for a conical crusher having a fixed spindle 62 and a crusher head 36 driven by an eccentric body 20 and a fixed crusher rotating inside a crusher 48, in which either one of the skeleton spindle and the crusher head an elastomer) w integrated 80; fixed to the other of the spindle and the crusher head;
The wrinkled elastomer unit includes a clutch block member 7G coaxially arranged on the telescope 2, and the elastomer unit has an opening 8 that is non-circular and has a constant inner peripheral surface.
1; the clutch block member also has a non-circular, constant curved surface, and has a circumferential surface that is radially opposed to, substantially coaxial with, and in an adjacent relationship with the inner circumferential surface; ; During crushing operation, the elastomer unit is deformed by the reaction torque applied to the crusher head, and during no-load operation, the elastomer unit damps the vibrations generated within the crusher, and provides sufficient resistance torque, causing the crusher head to spin together with the eccentric body. A spin stop device characterized in that it prevents the spin from occurring. (2) The crusher head is positioned such that the crusher head rotates around the apex of rotation, and the adjacent surfaces of the clutch block member and the elastomer integrally cross a horizontal plane passing through the apex of the scissors rotation [-, the elastomer integrally Claim 111 characterized in that amorphous and linear deformations along the direction are minimized, and the action exerted on the elastomer body is primarily a relative angular displacement and associated deformation. Spin stop device as described in section. (3) An axial opening 8 in which the elastomer is fixed to the crusher head and has the inner circumferential surface described above.
1, the clutch block member has a cross-sectional shape similar to the cross-sectional shape of the opening, but with slightly different dimensions, so that the friction and deformation components, which together form the overall resistance torque, have different characteristics. Claim 12 in which the feature 41I is that
Spin stop device as described in section. (4) The clutch block member is fixed to the frame 10 of the crusher and attached to a fixed spindle extending in the axial direction, and the spindle extends in the axial direction for conveying lubricating oil to the interface between the clutch block member and the elastomer. 4. A spin stop device as claimed in claim 3, characterized in that it is provided with a channel 68 that has a cylindrical shape. (5) The spin stop device according to claim 3aK, wherein the cross-sectional shape is a square with chamfered corners. (bJ frame and said frame K) Ijj) A stationary assembly including a crusher bowl attached thereto and a fixed assembly pivoting within the crusher bowl about a pivot apex to crush the reel between the head and the bowl. A crusher head is attached to the crusher head, and an eccentric body is rotatably driven around an axis and has a crushing surface on which a part of the head is pivotally supported. In a spin stop device fIL for a conical crusher which imparts a spin torque to the head that tends to spin the head in the same direction,
an elastomer 1 integrally attached and shouldering the engagement surface; connected to the other of the fixing assembly and the head, and the elastomer 1 integrally shouldering the engagement surface;
．． a clutch block member having an engaging surface that faces and can be secured to the engaging surface of the elastomer integrated therein; A certain amount of torque is required to deform the elastomer unit so that the passing retaining surfaces can rotate relative to each other, and the torque from the bowl is larger than the above-mentioned constant torque required to deform the elastomer unit during load operation. The crusher head can rotate against the crusher bowl due to the reaction torque applied to the head via the crushed rock, and when no load is applied, the elastomer unit provides a resistance torque greater than the above spin torque, and the head acts as an eccentric body. A spin stop device characterized in that it has a lock to prevent it from spinning together.