Patent Application
20140319259
The present invention generally relates to an improved structure of crusher, and more particularly to an improved structure of crusher featuring fast gap adjustment and automatic returning.
All buildings are constructed by being built up on ground. Various buildings and facility are constructed with stones and rocks and are thus strong and close to the nature.
Stones and rocks are collected and then crushed to be used in combination with other construction materials to serve as the basic material for construction. Breaking stones or rocks can be done manually and this is time- and labor-consuming. In addition, the sizes of rock pieces so broken are not consistent, making it inconvenient for the subsequent operation.
To cope with such a problem., crushers that are developed for crushing and breaking stones and rocks are available in the market. Rocks are broken by being compressed by a movable plate that is driven by motors. This enhances the operation efficiency and allows of proper control of the size of broken rock pieces.
Referring to
However, the conventional crusher has certain drawbacks and shortcomings that must be improved:
(1) Gap adjustment of the crusher 500 is done by stacking pads 502 to change the initial crushing gap and then using the pull bar 501 to control the crushing gap. The adjustment requires increasing or decreasing the number of pads 502 and this process of adding or removing pads is generally time- and labor-consuming.
(2) When the crusher 500 gets jammed, it again needs removing and installing the pads 502 and changing the pull bar 501. This is also a time- and labor-consuming. Further, since the adjustment of gap is effected by stacking the pads 502, there is always a difference occurring each time returning is made.
(3) The crusher 500 uses the pull bar 501 to control the crushing stroke. The pull bar 501 is an elastic member and thus, the operation of the crusher 500 will cause certain change to the crushing gap during the operation. This leads to imprecise control of crushing quality of the crushed object.
Thus, the present invention aims to overcome the above discussed drawbacks and shortcomings of the prior art.
In view of the above drawbacks and shortcomings of the conventional devices, the present invention provides an improved structure of crusher that features fast gap adjustment and automatic returning.
A primary object of the present invention is that through coordination among an adjustment hydraulic cylinder, a slide block mechanism, and a pull bar hydraulic cylinder, fast adjustment of an initially-set gap and crushing gap can be realized so that through such a technique, the drawbacks of time- and labor-consuming operation of crushing gap adjustment occurring in the conventional crushers that is can be overcome and an advantage of fast adjustment of gap can be provided.
Another object of the present invention is that with an operation control module instructing to start an operation and to handle failure problem, the adjustment hydraulic cylinder and the pull bar hydraulic cylinder can efficiently remove any failure problem of jamming and effect automatic gap returning so that through such a technique, the drawbacks of time- and labor-consuming operation of failure removal and incapability of returning to the original setting of gap occurring in the conventional crushers can be overcome and an advantage of automatic returning can be provided.
To achieve the above objects, the present invention provides an improved structure of crusher that comprises a main body, on which a crushing structure and an adjustment structure are mounted. The adjustment structure comprises an adjustment hydraulic cylinder, which is mounted to the main body, a slide block mechanism, which is operatively coupled to the adjustment hydraulic cylinder, and a pull bar hydraulic cylinder, which is operable in combination with the adjustment hydraulic cylinder and the slide block mechanism.
The adjustment structure comprises an operation control module for adjusting a crushing gap and effecting position returning after an operation problem is removed.
With such an arrangement, to carry out a regular operation, the operation control module carries out setting of an initial gap and crushing gap for the adjustment structure. Coordination between the adjustment hydraulic cylinder and the pull bar hydraulic cylinder enables fast adjustment. When a failure, such as jamming, occurs, the operation control module issues an instruction again to the adjustment structure for removal of the failure by extending/retracting the adjustment hydraulic cylinder to expand the gap to the maximum so as to allow a jamming object to be discharged and subsequently returning back to the originally set gap. This process requires no dismounting/mounting of any component of the crusher and thus, an advantage of fast gap adjustment and automatic returning can be achieved.
The foregoing objectives and summary provide only a brief introduction to the present invention. To fully appreciate these and other objects of the present invention as well as the invention itself, all of which will become apparent to those skilled in the art, the following detailed description of the invention and the claims should be read in conjunction with the accompanying drawings. Throughout the specification and drawings identical reference numerals refer to identical or similar parts.
Many other advantages and features of the present invention will become manifest to those versed in the art upon making reference to the detailed description and the accompanying sheets of drawings in which a preferred structural embodiment incorporating the principles of the present invention is shown by way of illustrative example.
The following descriptions are exemplary embodiments only, and are not intended to limit the scope, applicability or configuration of the invention in any way. Rather, the following description provides a convenient illustration for implementing exemplary embodiments of the invention. Various changes to the described embodiments may be made in the function and arrangement of the elements described without departing from the scope of the invention as set forth in the appended claims.
Referring to
a main body 1;
a crushing structure 2, which is mounted on the main body 1, the crushing structure 2 comprising a power wheel assembly 21, a movable plate 22 that is mounted to the power wheel assembly 21 to effect reciprocal movement, and a fixed plate 23 that cooperates with the movable plate 22 to carry out a crushing operation; and
an adjustment structure 3, which is mounted on the main body 1 and comprises an adjustment hydraulic cylinder 31 mounted to the main body 1, a slide block mechanism 32 that is operatively coupled to the adjustment hydraulic cylinder 31, and a pull bar hydraulic cylinder 33 that is operable in combination with the adjustment hydraulic cylinder 31 and the slide block mechanism 32, the adjustment structure 3 having two ends that are respectively mounted to the main body 1 and the movable plate 22.
The adjustment structure 3 further comprises an operation control module 34 for adjusting a crushing gap and effecting position returning after an operation problem is removed.
The adjustment hydraulic cylinder 31 comprises a sensor element 311 arranged therein for detecting crushing pressure.
With the above described components and arrangement, the operation of the present invention is described as follows by referring to
Thus, as shown in all the drawings attached, the present invention shows various advantages over the prior art. Some of the advantages are listed as follows:
(1) When compared with the conventional way of adjustment that is made through adding and/or removing pads, the adjustment realized through the adjustment hydraulic cylinder 31 is efficient and labor-saving so that an advantage of fast gap adjustment is provided.
(2) Through the precise control provided by the operation control module 34, each time when position returning is made subsequent to removal of jamming or failure, the originally provided initial setting can be preserved with no change or difference occurring so that an advantage of fast gap adjustment and automatic returning is provided.
(3) Through the stable force provided by the pull bar hydraulic cylinder 33, no variation of gap may occur in an operating crusher due to vibration thereof so that an advantage of precise control of the quality of objects-to-be-crushed 4 is provided.
It will be understood that each of the elements described above, or two or more together may also find a useful application in other types of methods differing from the type described above.
While certain novel features of this invention have been shown and described and are pointed out in the annexed claim, it is not intended to be limited to the details above, since it will be understood that various omissions, modifications, substitutions and changes in the forms and details of the device illustrated and in its operation can be made by those skilled in the art without departing in any way from the spirit of the present invention.
