阅读说明：本技术 一种反击式矿山破碎机 (Reaction type mine crusher ) 是由 楼黎霞 徐挺 邓小雷 王建臣 徐耀军 郑嘉聪 于 2021-06-24 设计创作，主要内容包括：本发明公开了一种反击式矿山破碎机,包括底座,所述底座的左端内侧和右端内侧分别固定连接有第一锚杆和第二锚杆,所述第二锚杆的顶端固定连接有防护机构,所述防护机构的内侧活动连接有反击机构,所述防护机构的外侧活动连接有防漏机构。本发明涉及破碎机领域。往复杆对挡板进行撞击的过程中,挡板将物料抛洒至安装在第一反击板右侧的反击齿的表面,摆锤旋转过程中将物料分别抛向第一反击板的右侧、第二反击板的右侧和第三反击板的右侧,完成物料的精细化破碎处理,避免了小体积物料遗漏在破碎箱的内侧无法进行破碎处理。这解决了现有的反击式矿山破碎机物料破碎不足、不变拆卸和噪音控制不足的问题。(The invention discloses an impact mine crusher which comprises a base, wherein the inner side of the left end and the inner side of the right end of the base are respectively and fixedly connected with a first anchor rod and a second anchor rod, the top end of the second anchor rod is fixedly connected with a protection mechanism, the inner side of the protection mechanism is movably connected with an impact mechanism, and the outer side of the protection mechanism is movably connected with a leakage-proof mechanism. The present invention relates to the field of crushers. The in-process that the reciprocating rod carries out the striking to the baffle, the baffle is shed the material to the surface of installing the counterattack tooth on first counterattack board right side, and the pendulum rotates the in-process and throws the material respectively to the right side of first counterattack board, the right side of second counterattack board and the right side of third counterattack board, accomplishes the broken handle that becomes more meticulous of material, has avoided little volume material to omit the unable broken handle that carries on in the inboard of broken case. The problems that an existing impact mine crusher is insufficient in material crushing, unchanged in disassembly and insufficient in noise control are solved.)

1. The utility model provides an impact mine breaker, includes base (1), its characterized in that: the anchor rod fixing device is characterized in that the inner side of the left end and the inner side of the right end of the base (1) are respectively fixedly connected with a first anchor rod (2) and a second anchor rod (3), the top end of the second anchor rod (3) is fixedly connected with a protection mechanism (4), the inner side of the protection mechanism (4) is movably connected with a counterattack mechanism (5), and the outer side of the protection mechanism (4) is movably connected with a leakage-proof mechanism (6).

2. An impact mine crusher as defined in claim 1 wherein: the middle part of the base (1) is provided with a discharge hole, and the inner side of the top end of the base (1) is provided with an anchor hole.

3. An impact mine crusher as defined in claim 1 wherein: the protection mechanism (4) comprises a motor base (41) and a crushing mechanism (42), the bottom end of the motor base (41) is fixedly connected to the top end of the second anchor rod (3), the top end of the motor base (41) is fixedly connected with a driving motor (43), and the output end of the driving motor (43) is fixedly connected with a first guide wheel (44);

the crushing mechanism (42) comprises a crushing box (4201), the bottom end of the crushing box (4201) is fixedly connected to the top end of the first anchor rod (2), a support (4202) is fixedly connected to the outer side of the crushing box (4201), a rotating shaft (4203) is rotatably connected to the inner side of the top end of the support (4202), the front end of the rotating shaft (4203) is fixedly connected with a second guide wheel (4204), the outer side of the second guide wheel (4204) is connected with the outer side of the first guide wheel (44) through a belt transmission, the middle part of the rotating shaft (4203) is fixedly connected with a mounting rack (4205), the inner side of the mounting rack (4205) is clamped with a pendulum bob (4206), the left end of the crushing box (4201) is movably connected with a connecting shaft (4207), the outer side of the connecting shaft (4207) is movably connected with a protective shell (4208), the front side of the crushing box (4201) is movably connected with a hydraulic rod (4209), and the top end of the hydraulic rod (4209) is movably connected with the front side of the protective shell (4208).

4. An impact mine crusher as defined in claim 3 wherein: the top end and the bottom end of the crushing box (4201) are respectively provided with a feeding hole and a discharging hole, and the left side of the crushing box (4201) is abutted against the right side of the protective shell (4208).

5. An impact mine crusher as defined in claim 1 wherein: the impact mechanism (5) comprises a first impact plate (51), a second impact plate (52), a third impact plate (53) and a fixed bolt (54), the top end of the first impact plate (51) and the top end of the second impact plate (52) are movably connected to the top and the bottom of the inner side of a protective shell (4208) respectively, the top end of the third impact plate (53) is movably connected to the inner side of the left end of a crushing box (4201), the bottom end of the fixed bolt (54) is in threaded connection with the inner side of the protective shell (4208) and the inner side of the crushing box (4201) respectively, a first hydraulic spring shock absorber (55), a second hydraulic spring shock absorber (56) and a third hydraulic spring shock absorber (57) are fixedly connected to the left side of the first impact plate (51), the left side of the second impact plate (52) and the left side of the third impact plate (53) respectively, and the left end of the first hydraulic spring shock absorber (55) and the left end of the second hydraulic spring shock absorber (56) penetrate through the protective shell (4208) respectively From side to outside, the right end inboard of first counterattack board (51), the right end inboard of second counterattack board (52) and the right end inboard of third counterattack board (53) all threaded connection have counterattack tooth (58), the left end of third hydraulic spring shock absorber (57) runs through in the left end inboard to the outside of broken case (4201), the outside of gim peg (54) is worn to overlap from a left side to the right respectively and is prevented pounding board (59), buckled plate (510) and foamed rubber pad (511).

6. An impact mine crusher as defined in claim 5 wherein: and the left side of the impact teeth (58) is fixedly connected with a positioning bolt, and the top end of the positioning bolt is respectively in threaded connection with the inner side of the right end of the first impact plate (51), the inner side of the right end of the second impact plate (52) and the inner side of the right end of the third impact plate (53).

7. An impact mine crusher as defined in claim 1 wherein: the anti-leakage mechanism (6) comprises a transmission wheel (61) and a baffle (62), the middle of the transmission wheel (61) is movably connected to the right side of the crushing box (4201), the top end of the baffle (62) is rotatably connected to the inner side of the top end of the crushing box (4201), the outer side of the transmission wheel (61) is connected to the outer side of the first guide wheel (44) through a belt in a transmission mode, a connecting pin (63) is fixedly connected to the front end of the transmission wheel (61), a movable rod (64) is movably connected to the outer side of the connecting pin (63), a reciprocating rod (65) is rotatably connected to the top end of the movable rod (64), and the top end of the reciprocating rod (65) abuts against the bottom surface of the baffle (62).

8. An impact mine crusher as defined in claim 7 wherein: the top end of the reciprocating rod (65) penetrates through the outer side to the inner side of the crushing box (4201), the top end of the reciprocating rod (65) is fixedly connected with a cushioning rubber ball head, and the top end of the cushioning rubber ball head abuts against the bottom surface of the baffle (62).

Technical Field

The invention relates to the field of crushers, in particular to a reaction type mine crusher.

Background

The impact crusher is material processing equipment mainly applied to metallurgy, chemical industry, building materials, water and electricity and the like which often need to be moved, the impact crusher utilizes impact energy to complete material crushing, a rotor rotates at a high speed under the driving of a motor, when materials enter a plate hammer action area, the materials are impacted with a plate hammer on the rotor to complete primary crushing, the materials are thrown to an impact plate after being impacted by the plate hammer to perform secondary crushing, and the primary crushed materials and secondary crushed materials are impacted at a high speed and crushed again on the inner side of a crushing box.

In the actual production and use of the existing equipment, the following problems in the prior art are found to be at least solved: 1. when the existing equipment is used, a large amount of materials enter the inner side of the equipment to be crushed, and the materials with small volume have the problems of insufficient crushing and omission; 2. the existing equipment has the problem of inconvenient disassembly in the daily maintenance process, so that the equipment is inconvenient to maintain, and the production plan arrangement of the equipment is slowed down; 3. the existing equipment has the problem of insufficient noise control in the use process, generates great noise and vibration during crushing of materials, and causes great damage to the bodies of operators.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides an impact type mine crusher, which solves the problems of insufficient material crushing, unchanged disassembly and insufficient noise control of the existing impact type mine crusher.

In order to achieve the purpose, the invention is realized by the following technical scheme: the utility model provides an impact mine breaker, includes the base, the inboard first stock of fixedly connected with and second stock of right-hand member inboard respectively of the left end of base, the top fixedly connected with protection machanism of second stock, protection machanism's inboard swing joint has impact mechanism, protection machanism's outside swing joint has leak protection mechanism.

Preferably, the middle part of the base is provided with a discharge hole, and the inner side of the top end of the base is provided with an anchor hole.

Preferably, the protection mechanism comprises a motor base and a crushing mechanism, the bottom end of the motor base is fixedly connected to the top end of the second anchor rod, the top end of the motor base is fixedly connected with a driving motor, and the output end of the driving motor is fixedly connected with a first guide wheel.

Broken mechanism includes broken case, the bottom fixed connection of broken case is on the top of first stock, the outside fixedly connected with support of broken case, the inboard swivelling joint in top of support has the pivot, the front end fixedly connected with second guide pulley of pivot, the outside of second guide pulley is passed through belt transmission and is connected in the outside of first guide pulley, the middle part fixedly connected with mounting bracket of pivot, the inboard joint of mounting bracket has the pendulum, the left end swing joint of broken case has the connecting axle, the outside swing joint of connecting axle has the protecting crust, the front side swing joint of broken case has the hydraulic stem, the top swing joint of hydraulic stem is in the front side of protecting crust.

Preferably, feed inlet and discharge gate have been seted up respectively to the top and the bottom of broken case, the left side of broken case is contradicted on the right side of protecting crust.

Preferably, the impact mechanism comprises a first impact plate, a second impact plate, a third impact plate and a fixed bolt, wherein the top end of the first impact plate and the top end of the second impact plate are respectively and movably connected with the top and the bottom of the inner side of the protective shell, the top end of the third impact plate is movably connected with the inner side of the left end of the crushing box, the bottom end of the fixed bolt is respectively and fixedly connected with the inner side of the protective shell and the inner side of the crushing box by screw threads, the left side of the first impact plate, the left side of the second impact plate and the left side of the third impact plate are respectively and fixedly connected with a first hydraulic spring shock absorber, a second hydraulic spring shock absorber and a third hydraulic spring shock absorber, the left end of the first hydraulic spring shock absorber and the left end of the second hydraulic spring shock absorber are respectively and penetrate through the inner side to the outer side of the protective shell, and the inner sides of the right end of the inner side of the first impact plate, the right end of the second impact plate and the right end of the third impact plate are respectively and threadedly connected with impact teeth, the left end of the third hydraulic spring shock absorber penetrates through the inner side to the outer side of the left end of the crushing box, and the anti-smashing plate, the corrugated plate and the foaming rubber pad are respectively sleeved on the outer side of the fixing bolt from left to right in a penetrating manner.

Preferably, the left side of the impact tooth is fixedly connected with a positioning bolt, and the top end of the positioning bolt is respectively in threaded connection with the inner side of the right end of the first impact plate, the inner side of the right end of the second impact plate and the inner side of the right end of the third impact plate.

Preferably, the leak protection mechanism includes drive wheel and baffle, the middle part swing joint of drive wheel is on the right side of broken case, the top swivelling joint of baffle is inboard at the top of broken case, the outside of drive wheel is passed through belt drive and is connected the outside at first guide pulley, the front end fixedly connected with connecting pin of drive wheel, the outside swing joint of connecting pin has the movable rod, the top swivelling joint of movable rod has the reciprocating lever, the top of reciprocating lever is contradicted in the bottom surface of baffle.

Preferably, the top end of the reciprocating rod penetrates through the outer side to the inner side of the crushing box, the top end of the reciprocating rod is fixedly connected with a cushioning rubber ball head, and the top end of the cushioning rubber ball head is abutted against the bottom surface of the baffle.

Advantageous effects

The invention provides a reaction type mine crusher. Compared with the prior art, the method has the following beneficial effects:

(1) this impact mine breaker solves the problem that little volume material is broken not enough and is omitted through leak protection mechanism, the drive wheel rotates the in-process and drives the movable rod rotation through the connecting pin, the movable rod drives reciprocating lever at the bottom surface reciprocating motion of baffle, the reciprocating lever carries out the in-process of striking to the baffle, the baffle is shed the material to the surface of installing the counterattack tooth on first counterattack board right side, the pendulum is rotatory in-process is thrown the material respectively to the right side of first counterattack board, the right side of second counterattack board and the right side of third counterattack board, accomplish the broken handling that becomes more meticulous of material, simultaneously little volume material is sent down the completion breakage at the throwing of baffle, avoided little volume material to omit the inboard of broken case and carried out broken handling.

(2) This reaction formula mine breaker passes through protection machanism and the quick dismantlement of reaction mechanism realization is maintained, improves the device's maintainability and production efficiency, removes the conflict of protecting crust and broken case through the hydraulic stem, makes things convenient for maintainer to carry out the inspection to broken mechanism, reaction mechanism and the leak protection mechanism of broken incasement internally mounted and maintains, and the leak protection mechanism is when realizing the high crushing efficiency of material, and simple structure conveniently makes and maintains, has reduced the device's later maintenance use cost.

(3) This counterattack formula mine breaker passes through counterattack mechanism and realizes noise control, reduces the device to operation personnel's health injury and to the noise pollution of environment, and the direct striking of material is on the surface of pounding prevention board, provides the protection of pounding prevention through pounding prevention board and the broken case in ripple board position and protecting crust, and noise and vibrations when accomplishing the material breakage through the collocation of buckled plate and foamed rubber pad absorb, improve the device's noise control ability, and simple structure makes things convenient for.

Drawings

FIG. 1 is a front view of the structure of the present invention;

FIG. 2 is a front cross-sectional view of the base structure of the present invention;

FIG. 3 is a front cross-sectional view of the crushing box structure of the present invention;

FIG. 4 is an enlarged view of the structure of FIG. 3A in accordance with the present invention;

FIG. 5 is a front cross-sectional view of the protective shell structure of the present invention;

FIG. 6 is a top view of the base structure of the present invention;

FIG. 7 is a side cross-sectional view of the anti-knock plate structure of the present invention.

In the figure: 1. a base; 2. a first anchor rod; 3. a second anchor rod; 4. a protection mechanism; 41. a motor base; 42. a crushing mechanism; 4201. a crushing box; 4202. a support; 4203. a rotating shaft; 4204. a second guide wheel; 4205. a mounting frame; 4206. a pendulum bob; 4207. a connecting shaft; 4208. a protective shell; 4209. a hydraulic lever; 43. a drive motor; 44. a first guide wheel; 5. a counterattack mechanism; 51. a first reaction plate; 52. a second reaction plate; 53. a third reaction plate; 54. a fixing bolt; 55. a first hydraulic spring damper; 56. a second hydraulic spring shock absorber; 57. a third hydraulic spring damper; 58. counterattack teeth; 59. a smash-proof plate; 510. a corrugated plate; 511. a foamed rubber pad; 6. a leakage prevention mechanism; 61. a driving wheel; 62. a baffle plate; 63. a connecting pin; 64. a movable rod; 65. a reciprocating lever.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-7, a counterattack mine crusher comprises a base 1, wherein a first anchor rod 2 and a second anchor rod 3 are fixedly connected to the inner sides of the left end and the right end of the base 1 respectively, a protection mechanism 4 is fixedly connected to the top end of the second anchor rod 3, a counterattack mechanism 5 is movably connected to the inner side of the protection mechanism 4, and a leakage-proof mechanism 6 is movably connected to the outer side of the protection mechanism 4.

In the invention, the middle part of the base 1 is provided with a discharge hole, and the inner side of the top end of the base 1 is provided with an anchor hole.

In the invention, the protection mechanism 4 comprises a motor base 41 and a crushing mechanism 42, the bottom end of the motor base 41 is fixedly connected to the top end of the second anchor rod 3, the top end of the motor base 41 is fixedly connected with a driving motor 43, and the output end of the driving motor 43 is fixedly connected with a first guide wheel 44.

The crushing mechanism 42 comprises a crushing box 4201, the bottom end of the crushing box 4201 is fixedly connected to the top end of the first anchor rod 2, a support 4202 is fixedly connected to the outer side of the crushing box 4201, a rotating shaft 4203 is rotatably connected to the inner side of the top end of the support 4202, a second guide wheel 4204 is fixedly connected to the front end of the rotating shaft 4203, the outer side of the second guide wheel 4204 is connected to the outer side of the first guide wheel 44 through belt transmission, a mounting frame 4205 is fixedly connected to the middle of the rotating shaft 4203, a pendulum 4206 is clamped to the inner side of the mounting frame 4205, a connecting shaft 4207 is movably connected to the left end of the crushing box 4201, a protective shell 4208 is movably connected to the outer side of the connecting shaft 4207, a hydraulic rod 4209 is movably connected to the front side of the crushing box 4201, and the top end of the hydraulic rod 4209 is movably connected to the front side of the protective shell 4208. It should be noted that the baffle plate 62 throws the material onto the surface of the impact teeth 58 installed on the right side of the first impact plate 51, the material falls back to the outer side of the pendulum 4206 after entering the first-stage crushing, the pendulum 4206 throws the material to the right side of the first impact plate 51, the right side of the second impact plate 52 and the right side of the third impact plate 53 in the rotation process, and the material collides back and forth among the baffle plate 62, the pendulum 4206, the first impact plate 51, the second impact plate 52 and the third impact plate 53, so as to complete the fine crushing treatment of the material.

In the invention, a feed inlet and a discharge outlet are respectively arranged at the top end and the bottom end of a crushing box 4201, and the left side of the crushing box 4201 is abutted against the right side of a protective shell 4208. It should be noted that, the hydraulic rod 4209 is used to release the collision between the protective shell 4208 and the crushing box 4201, so that the maintenance personnel can conveniently check and maintain the crushing mechanism 42, the reaction mechanism 5 and the leakage-proof mechanism 6 installed inside the crushing box 4201.

In the present invention, the impact mechanism 5 includes a first impact plate 51, a second impact plate 52, a third impact plate 53 and a fixing bolt 54, the top end of the first impact plate 51 and the top end of the second impact plate 52 are movably connected to the top and the bottom of the inner side of the protection housing 4208, respectively, the top end of the third impact plate 53 is movably connected to the inner side of the left end of the crushing case 4201, the bottom end of the fixing bolt 54 is respectively screwed to the inner side of the protection housing 4208 and the inner side of the crushing case 4201, the left side of the first impact plate 51, the left side of the second impact plate 52 and the left side of the third impact plate 53 are respectively and fixedly connected to a first hydraulic spring damper 55, a second hydraulic spring damper 56 and a third hydraulic spring damper 57, the left end of the first hydraulic spring damper 55 and the left end of the second hydraulic spring damper 56 respectively penetrate the inner side to the outer side of the protection housing 4208, the right end of the inner side of the first impact plate 51, the inner side of the second impact plate 52 and the right end of the third impact plate 53 are respectively and threadedly connected to an impact plate 58, the left end of the third hydraulic spring damper 57 penetrates from the inner side to the outer side of the left end of the crushing box 4201, and the outer side of the fixing bolt 54 is respectively sleeved with the anti-smashing plate 59, the corrugated plate 510 and the foamed rubber pad 511 from left to right. It should be noted that, the smashing prevention protection is provided by the smashing prevention plate 59, the smashing box 4201 of the corrugated plate 510 and the protection shell 4208, and the noise and vibration absorption during material smashing is completed by matching the corrugated plate 510 and the foamed rubber pad 511, so that the noise control capability of the device is improved, and the structure is simple and convenient to manufacture.

In the present invention, a positioning bolt is fixedly connected to the left side of the impact teeth 58, and the top end of the positioning bolt is screwed to the inside of the right end of the first impact plate 51, the inside of the right end of the second impact plate 52, and the inside of the right end of the third impact plate 53, respectively.

In the invention, the leakage-proof mechanism 6 comprises a transmission wheel 61 and a baffle plate 62, the middle part of the transmission wheel 61 is movably connected to the right side of the crushing box 4201, the top end of the baffle plate 62 is rotatably connected to the inner side of the top end of the crushing box 4201, the outer side of the transmission wheel 61 is connected to the outer side of the first guide wheel 44 through a belt in a transmission manner, the front end of the transmission wheel 61 is fixedly connected with a connecting pin 63, the outer side of the connecting pin 63 is movably connected with a movable rod 64, the top end of the movable rod 64 is rotatably connected with a reciprocating rod 65, and the top end of the reciprocating rod 65 is abutted against the bottom surface of the baffle plate 62. It should be noted that, in the rotation process of the driving wheel 61, the connecting pin 63 drives the movable rod 64 to rotate, the movable rod 64 drives the reciprocating rod 65 to reciprocate on the bottom surface of the baffle plate 62, and in the process that the reciprocating rod 65 impacts the baffle plate 62, the baffle plate 62 throws the material on the surface of the impact teeth 58 arranged on the right side of the first impact plate 51, so that the crushing efficiency of the material is improved.

In the invention, the top end of the reciprocating rod 65 penetrates from the outer side to the inner side of the crushing box 4201, the top end of the reciprocating rod 65 is fixedly connected with a shock absorption rubber ball head, and the top end of the shock absorption rubber ball head is abutted against the bottom surface of the baffle plate 62. It should be noted that, the crushing efficiency of the small-volume material is improved by matching the reciprocating rod 65 and the baffle 62.

In use, when material is introduced into the inner side of the crushing box 4201, the driving motor 43 is started, the driving motor 43 is in belt transmission connection with the first guide wheel 44 and the second guide wheel 4204 through the first guide wheel 44 to complete driving of the rotating shaft 4203, the mounting frame 4205 and the pendulum 4206, the driving motor 43 is in belt transmission connection with the first guide wheel 44 and the transmission wheel 61 through the first guide wheel 44 to complete driving of the transmission wheel 61, the transmission wheel 61 rotates through the connecting pin 63 to drive the movable rod 64, the movable rod 64 drives the reciprocating rod 65 to reciprocate on the bottom surface of the baffle 62, the baffle 62 throws the material on the surface of the counterattack teeth 58 arranged on the right side of the first counterattack plate 51 during rotation, the material falls back to the outer side of the pendulum 4206 after the first-stage crushing, the material is thrown to the right side of the first counterattack plate 51, the right side of the second counterattack plate 52 and the right side of the third counterattack plate 53 during rotation of the pendulum 4206, materials are impacted back and forth among the baffle plate 62, the pendulum bob 4206, the first impact plate 51, the second impact plate 52 and the third impact plate 53, fine crushing treatment of the materials is completed, meanwhile, small-volume materials are crushed under the throwing of the baffle plate 62, and the situation that the small-volume materials are left on the inner side of the crushing box 4201 and cannot be crushed is avoided.

When the device is maintained, the hydraulic rod 4209 is used for releasing the conflict between the protective shell 4208 and the crushing box 4201, so that a maintainer can conveniently inspect and maintain the crushing mechanism 42, the impact mechanism 5 and the leakage-proof mechanism 6 which are arranged inside the crushing box 4201, the left ends of the impact teeth 58 are respectively and conveniently dismounted and maintained at the inner side of the right end of the first impact plate 51, the inner side of the right end of the second impact plate 52 and the inner side of the right end of the third impact plate 53 in a threaded manner, the leakage-proof mechanism 6 is simple in structure and convenient to manufacture and maintain while high crushing efficiency of materials is achieved, and the later maintenance and use cost of the device is reduced.

The noise control of the device is realized through the collocation of the counterattack mechanism 5 and the protection mechanism 4, when materials are collided back and forth between the baffle plate 62, the pendulum bob 4206, the first counterattack plate 51, the second counterattack plate 52 and the third counterattack plate 53, the materials are directly collided on the surface of the anti-smashing plate 59, the anti-smashing protection is provided through the anti-smashing plate 59 and the 510-bit smashing box 4201 of the corrugated plate and the protection shell 4208, the noise and vibration absorption when the materials are smashed is completed through the collocation of the corrugated plate 510 and the foaming rubber pad 511, the noise control capability of the device is improved, the structure is simple and the manufacturing is convenient.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.