阅读说明：本技术 一种过载保护的破碎机 (Overload protection's breaker ) 是由 梁纪民 于 2020-12-14 设计创作，主要内容包括：本发明涉及破碎设备领域,特别涉及一种过载保护的破碎机,包括具有破碎腔的机壳、转子、动力单元,机壳具有进料口,破碎机还包括设置于破碎腔的反击板,反击板的上端与破碎腔铰接下端延伸至转子的侧方,破碎机还包括油缸,油缸的一端伸入破碎腔内并与反击板远离转子的一侧铰接,另一端与机壳铰接；破碎机还包括控制器、设置于油缸的压力传感器、设置于油缸的泄油阀,控制器连接压力传感器和泄油阀,压力传感器的压力大于设定阈值时,泄油阀卸油以使得油缸回缩,本发明能够在破碎机内物料负荷较大时,快速解除油缸对反击板的支撑,以缓解破碎腔内的压力,有利于保护破碎机,本发明有效的解决了现有技术中存在的问题。(The invention relates to the field of crushing equipment, in particular to an overload protection crusher, which comprises a casing with a crushing cavity, a rotor and a power unit, wherein the casing is provided with a feeding hole; the crusher also comprises a controller, a pressure sensor arranged on the oil cylinder and an oil drain valve arranged on the oil cylinder, wherein the controller is connected with the pressure sensor and the oil drain valve, and when the pressure of the pressure sensor is greater than a set threshold value, the oil drain valve discharges oil to enable the oil cylinder to retract.)

1. An overload protection crusher comprises a casing with a crushing cavity, a rotor rotatably arranged in the casing, and a power unit driving the rotor to rotate, wherein the casing is provided with a feeding hole;

the crusher also comprises a controller, a pressure sensor arranged on the oil cylinder, and an oil drain valve arranged on the oil cylinder, wherein the controller is connected with the pressure sensor and the oil drain valve, and when the pressure of the pressure sensor is greater than a set threshold value, the oil drain valve unloads oil so that the oil cylinder retracts.

2. An overload protection crusher as claimed in claim 1 wherein the pressure sensor is located inside the ram.

3. An overload protection crusher as claimed in claim 1 wherein the outer wall of the housing is provided with an articulated seat and the cylinder extends outside the housing and is articulated to the articulated seat.

4. The overload protection crusher according to claim 3, wherein the hinged seat and the casing are of a split structure, the crusher further comprises a pin and a driving assembly, the pin is connected with the hinged seat and the casing, the driving assembly is connected with the pin and the driving assembly is connected with the controller, and the driving assembly can drive the pin to separate the hinged seat and the casing.

5. An overload protection crusher as claimed in claim 4 wherein the casing is provided with a through bore at the hinged seat from which the cylinder enters the crushing chamber;

the casing is in the both sides of through-hole are relative be provided with respectively the boss, the bolt slide set up in the boss, articulated seat is equipped with the confession the bolt male jack.

6. The overload protection crusher of claim 5, wherein the drive assembly includes a spring and an unlocking cylinder, the spring is disposed between the bolt and the housing, and the spring is adapted to drive the bolt to slide out of the insertion hole; the bolt is equipped with only position portion, the unblock hydro-cylinder is connected with locking portion, locking portion with only position portion butt, with the locking the spring drives the bolt removes, the unblock hydro-cylinder can drive locking portion and the separation of ending position portion.

7. The overload protection crusher of claim 6, wherein the stop portion is a stop notch formed in the bolt, the locking portion includes a locking rod, the locking rod has an opening, and the cylinder drives the locking rod to move, so that the opening of the locking rod moves to the bolt, and the bolt passes through the opening.

8. An overload protection crusher as claimed in claim 6 wherein the boss is provided with a plurality of pins, the ends of the pins remote from the hinged seat being connected by a connecting rod, the spring being disposed between the connecting rod and the boss.

9. An overload protection crusher as claimed in claim 5 wherein the drive assembly includes an unlocking cylinder, the unlocking cylinder being connected to the latch.

10. An overload protection crusher as claimed in claim 5 wherein the bosses are provided with respective tie bars at opposite ends thereof, the tie bars and bosses surrounding the hinge mount.

Technical Field

The invention relates to the field of crushing equipment, in particular to an overload protection crusher.

Background

When crushing stone blocks and construction waste, crushers are often used, wherein impact crushers are commonly used types of crushers, in which the material entering the crushing chamber is crushed between the rotor and the impact plate, and the crushed material leaks down through the gap between the impact plate and the rotor. When too much or too large materials or materials which are difficult to crush appear in the crusher, the materials in the crushing cavity are easy to accumulate, so that the loads of the impact plate and the rotor are increased more instantly, and structural parts of the crusher are easy to damage.

Disclosure of Invention

In order to solve the technical problems, the invention provides an overload protection crusher, which can quickly remove the support of an oil cylinder on a counterattack plate when the material load in the crusher is large so as to relieve the pressure in a crushing cavity, is favorable for protecting the crusher and effectively solves the problems in the prior art.

In order to solve the problems, the invention provides an overload protection crusher, which comprises a casing with a crushing cavity, a rotor rotationally arranged in the casing, and a power unit driving the rotor to rotate, wherein the casing is provided with a feeding hole, the crusher also comprises an impact plate arranged in the crushing cavity, the upper end of the impact plate is hinged with the crushing cavity, the lower end of the impact plate extends to the side of the rotor, the crusher also comprises an oil cylinder, one end of the oil cylinder extends into the crushing cavity and is hinged with one side, far away from the rotor, of the impact plate, and the other end of the oil cylinder is hinged with the casing; the crusher also comprises a controller, a pressure sensor arranged on the oil cylinder, and an oil drain valve arranged on the oil cylinder, wherein the controller is connected with the pressure sensor and the oil drain valve, and when the pressure of the pressure sensor is greater than a set threshold value, the oil drain valve unloads oil so that the oil cylinder retracts.

Further, the pressure sensor is arranged on the inner side of the oil cylinder.

Furthermore, the outer wall of the casing is provided with a hinged seat, and the oil cylinder extends out of the outer side of the casing and is hinged to the hinged seat.

Further, articulated seat with the casing is the components of a whole that can function independently structure, the breaker still includes bolt and drive assembly, the bolt connection articulated seat with the casing, drive assembly with the bolt links to each other, just drive assembly with the controller links to each other, drive assembly can drive the bolt separation articulated seat with the casing.

Furthermore, a through hole is formed in the hinged seat of the shell, and the oil cylinder enters the crushing cavity through the through hole; the casing is in the both sides of through-hole are relative be provided with respectively the boss, the bolt slide set up in the boss, articulated seat is equipped with the confession the bolt male jack.

Furthermore, the driving assembly comprises a spring and an unlocking oil cylinder, the spring is arranged between the bolt and the shell, and the spring is suitable for driving the bolt to slide out of the jack; the bolt is equipped with only position portion, the unblock hydro-cylinder is connected with locking portion, locking portion with only position portion butt, with the locking the spring drives the bolt removes, the unblock hydro-cylinder can drive locking portion and the separation of ending position portion.

Furthermore, the position stopping part is arranged on a position stopping notch of the bolt, the locking part comprises a locking rod, the locking rod is provided with an opening, the oil cylinder drives the locking rod to move, so that the opening of the locking rod moves to the bolt, and the bolt passes through the opening.

Furthermore, the boss is provided with a plurality of bolts, each bolt is far away from one end of the hinged seat and is connected through a connecting rod, and the spring is arranged between the connecting rod and the boss.

Furthermore, the driving assembly comprises an unlocking oil cylinder, and the unlocking oil cylinder is connected with the bolt.

Furthermore, two ends of the boss are respectively provided with a connecting rib, and the connecting rib and the boss surround the hinge seat.

The invention has the beneficial effects that the invention provides the overload protection crusher, the support of the oil cylinder on the impact plate can be quickly released when the material load in the crusher is large, so that the pressure in the crushing cavity is relieved, the protection of the crusher is facilitated, and the problems in the prior art are effectively solved.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic structural diagram of a crusher according to an embodiment of the present invention.

Fig. 2 is a schematic view of the internal structure of the impact plate in the embodiment of fig. 1.

Fig. 3 is a schematic structural view of the hinge seat in the embodiment shown in fig. 1.

FIG. 4 is a schematic view of the engagement between the detent lever and the latch of the embodiment of FIG. 1.

Fig. 5 is a control schematic diagram of the controller in the embodiment shown in fig. 1.

Wherein: 1. a housing; 2. a rotor; 3. a feed inlet; 4. a counterattack plate; 5. an oil cylinder; 6. a hinged seat; 7. a bolt; 8. a through hole; 9. a boss; 10. a jack; 11. a spring; 12. unlocking the oil cylinder; 13. a stop notch; 14. a lock lever; 15. an opening; 16. a connecting rod; 17. and connecting ribs.

Detailed Description

In order to more clearly explain the overall concept of the present invention, the following detailed description is given by way of example in conjunction with the accompanying drawings.

It should be noted that in the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and thus the scope of the present invention is not limited by the specific embodiments disclosed below.

In addition, in the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicate orientations and positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; either directly or indirectly through intervening media, either internally or in any other relationship. However, the direct connection means that the two bodies are not connected to each other by the intermediate structure but connected to each other by the connecting structure to form a whole. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

In the invention, as shown in fig. 1-5, an overload protection crusher is provided, which includes a casing 1 having a crushing cavity, a rotor 2 rotatably disposed in the casing 1, and a power unit for driving the rotor 2 to rotate, wherein the casing 1 has a feed port 3, the crusher further includes a reaction plate 4 disposed in the crushing cavity, an upper end of the reaction plate 4 is hinged to the crushing cavity, a lower end of the reaction plate extends to a side of the rotor 2, the crusher further includes an oil cylinder 5, one end of the oil cylinder 5 extends into the crushing cavity and is hinged to a side of the reaction plate 4 away from the rotor 2, and the other end of the oil cylinder is hinged to the casing 1; the crusher also comprises a controller, a pressure sensor arranged on the oil cylinder 5, and an oil drain valve arranged on the oil cylinder 5, wherein the controller is connected with the pressure sensor and the oil drain valve, and when the pressure of the pressure sensor is greater than a set threshold value, the oil drain valve unloads oil so that the oil cylinder 5 retracts.

When the crusher is used, the gap between the lower side of the impact plate 4 and the rotor 2 can be adjusted through the expansion and contraction of the oil cylinder 5, so that the size of a discharge gap of the crusher can be adjusted, and the particle size of materials discharged by the crusher can be adjusted. The monitoring that pressure sensor in the hydro-cylinder 5 implemented to the pressure of hydro-cylinder 5 to the load that monitoring counterattack board 4 received, when counterattack board 4 received the load and is greater than the settlement threshold value, the bleeder valve of controller control hydro-cylinder 5 leaked the oil in the hydro-cylinder 5, and then can open counterattack board 4, with the row material clearance grow of between counterattack board 4 and the rotor 2, discharge the material in the broken intracavity, with protection rotor 2 and counterattack board 4, maintain the normal operating of breaker.

As for the arrangement of the pressure sensor, it is preferable that the pressure sensor is arranged inside the oil cylinder 5.

Further specifically, the outer wall of the machine shell 1 is provided with a hinged seat 6, and the oil cylinder 5 extends out of the outer side of the machine shell 1 and is hinged to the hinged seat 6. By arranging the hinge base 6 outside the housing 1, it is possible to facilitate the installation and adjustment of the oil cylinder 5.

The further optimization point is that the hinged seat 6 and the casing 1 are of a split structure, the crusher further comprises a bolt 7 and a driving assembly, the bolt 7 is connected with the hinged seat 6 and the casing 1, the driving assembly is connected with the bolt 7 and connected with the controller, and the driving assembly can drive the bolt 7 to separate the hinged seat 6 from the casing 1. Therefore, when the pressure value monitored by the pressure sensor is larger than a set threshold value, the controller drives the bolt 7 to separate through the driving assembly, so that the hinged seat 6 and the shell 1 can be separated, the support of the oil cylinder 5 on the impact plate 4 can be quickly removed, the impact plate 4 can be quickly opened, the response speed is higher, and the protection of the structural part of the crusher can be further facilitated.

As for the arrangement of the bolt 7, more specifically, a through hole 8 is formed in the hinged seat 6 of the casing 1, and the oil cylinder 5 enters the crushing cavity through the through hole 8; casing 1 is in the both sides of through-hole 8 are relative be provided with respectively boss 9, bolt 7 slide set up in boss 9, articulated seat 6 is equipped with the confession bolt 7 male jack 10.

As shown, the bosses 9 are arranged on both sides of the through hole 8, and also have a function of positioning the hinge base 6.

More specifically, the driving assembly comprises a spring 11 and an unlocking oil cylinder 12, the spring 11 is arranged between the bolt 7 and the casing 1, and the spring 11 is suitable for driving the bolt 7 to slide out of the insertion hole 10; bolt 7 is equipped with the position portion of ending, unblock hydro-cylinder 12 is connected with locking portion, locking portion with the position portion butt ends, with the locking spring 11 drives bolt 7 removes, unblock hydro-cylinder 12 can drive locking portion separates with the position portion of ending.

Under breaker normal use state, locking portion and the butt of position stopping portion, bolt 7 insert in the jack 10, can realize being connected of articulated seat 6 and casing 1, when needs are relieved articulated seat 6 and casing 1 between be connected, drive locking portion and the separation of position stopping portion through unblock hydro-cylinder 12, can pull out bolt 7 by jack 10 through spring 11 is quick.

Therefore, the locking part and the stopping part can be moved relatively through the small-amplitude action of the unlocking oil cylinder 12, the bolt 7 can be rapidly pulled out through the rapid response of the spring 11, and the response speed of the hinged seat 6 connected with the machine shell 1 is further improved.

Further specifically, the stopping portion is a stopping notch 13 formed in the bolt 7, the locking portion includes a locking rod 14, the locking rod 14 is provided with an opening 15, the oil cylinder 5 drives the locking rod 14 to move, so that the opening 15 of the locking rod 14 moves to the bolt 7, and the bolt 7 passes through the opening 15.

In the illustrated embodiment, more specifically, the boss 9 is provided with a plurality of bolts 7, one end of each bolt 7 away from the hinge seat 6 is connected with a connecting rod 16, and the spring 11 is arranged between the connecting rod 16 and the boss 9. The latch 7 on one side can thus be controlled by a spring 11.

The form of the drive assembly is not limited to that shown in the figures and in alternative embodiments other forms may be used, for example, the drive assembly includes an unlocking cylinder 12, the unlocking cylinder 12 being connected to the bolt 7.

In the illustrated embodiment, it is further preferred that the two bosses 9 are provided with a connecting rib 17 at each end, and the connecting rib 17 and the bosses 9 surround the hinge seat 6. As shown, positioning of the docking station may thereby be achieved.

The embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, for the system embodiment, since it is substantially similar to the method embodiment, the description is simple, and for the relevant points, reference may be made to the partial description of the method embodiment.

The above description is only an example of the present application and is not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.