CN112317069A - Safe operating system of impact crusher - Google Patents

Safe operating system of impact crusher Download PDF

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Publication number
CN112317069A
CN112317069A CN202011298047.2A CN202011298047A CN112317069A CN 112317069 A CN112317069 A CN 112317069A CN 202011298047 A CN202011298047 A CN 202011298047A CN 112317069 A CN112317069 A CN 112317069A
Authority
CN
China
Prior art keywords
safety
limit switch
shell
impact crusher
observation door
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202011298047.2A
Other languages
Chinese (zh)
Inventor
刘守瑞
冯敏
朱振
薛峰
樊学勇
张海锋
齐行森
李明超
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Xuzhou XCMG Mining Machinery Co Ltd
Original Assignee
Xuzhou XCMG Mining Machinery Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Xuzhou XCMG Mining Machinery Co Ltd filed Critical Xuzhou XCMG Mining Machinery Co Ltd
Priority to CN202011298047.2A priority Critical patent/CN112317069A/en
Publication of CN112317069A publication Critical patent/CN112317069A/en
Pending legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B02CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02CCRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C13/00Disintegrating by mills having rotary beater elements ; Hammer mills
    • B02C13/26Details
    • B02C13/31Safety devices or measures

Abstract

The invention belongs to the technical field of impact crushers, and particularly relates to a safe operating system of an impact crusher, which comprises an observation door safety system, a cover opening safety system, a rotor maintenance safety system and a feeding hole safety system; the observation door safety system comprises a limit switch I arranged below the observation door, the limit switch I is used for being in signal connection with the control system, the observation door is completely locked through the insertion plate, and when the observation door is closed, the lower end of the insertion plate touches a contact of the limit switch I; the cover opening safety system comprises a limit switch II arranged on the upper shell, and when the upper shell and the lower shell are locked by a lock catch hinged on the lower shell, the lock catch is contacted with a contact of the limit switch II; the rotor maintenance safety system comprises a limiting pin shaft for limiting the rotation of the rotor body; the feed inlet safety system comprises a protection chain and protection rubber which are arranged at the feed inlet of the impact crusher. The system can comprehensively cover the safety setting in the overhaul operation process of the impact crusher.

Description

Safe operating system of impact crusher
Technical Field
The invention belongs to the technical field of impact crushers, and particularly relates to a safe operating system of an impact crusher.
Background
The impact crusher is one of main crushing equipment, mainly aims at crushing materials with the hardness below the medium hardness, is widely applied to mining, road construction, tunnel construction, construction waste recovery and the like, can be used for rough crushing and medium crushing, and has the characteristics of large crushing ratio, high yield, good product grain shape, reliable work, convenient maintenance, low operation cost and the like.
When the impact crusher is used for checking a discharge opening and wearing parts, an observation door needs to be opened for observation, the crushing main machine is ensured to stop working at the moment, otherwise, materials fly out of the observation door to cause damage to operators; when the interior of the impact crusher is overhauled, the upper shell needs to be opened for uncovering, the crushing main machine is ensured to stop working completely and the upper shell is limited mechanically, otherwise, once an operator enters the shell, the operator is injured on the human body; when the rotor needs to be overhauled or the plate hammer needs to be replaced, the rotor cannot rotate freely and be locked completely, otherwise, when the rotor is unbalanced due to the disassembly of rotor parts, the rotor can rotate at a high rotating speed due to the inertia effect, and the damage is caused to operating workers in the crusher; in the working process of the impact crusher, the rotor collides with the raw material at a high rotating speed to crush the raw material, at the moment, the feed port is prevented from flying out of the crushed material, otherwise, the material splashed at a high speed causes damage to crusher equipment, feeding equipment and operators.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides a safe operation system of an impact crusher, which can comprehensively cover the safe setting of the impact crusher in the maintenance operation process, prevent stones from flying out of a feeding hole to damage equipment and operators in the working process of the equipment and improve the safety of field operation.
The invention is realized by the following technical scheme: a safe operation system of an impact crusher comprises an observation door safety system, a cover opening safety system, a rotor maintenance safety system and a feeding hole safety system;
the observation door safety system comprises a limit switch I arranged below the observation door, the limit switch I is used for being in signal connection with the control system, the observation door is completely locked through the insertion plate, and when the observation door is closed, the lower end of the insertion plate touches a contact of the limit switch I;
the cover opening safety system comprises a limit switch II arranged on the upper shell, and when the upper shell and the lower shell are locked by a lock catch hinged on the lower shell, the lock catch is contacted with a contact of the limit switch II;
the rotor maintenance safety system comprises a limiting pin shaft for limiting the rotation of the rotor body;
the feed inlet safety system comprises a protection chain and protection rubber which are arranged at the feed inlet of the impact crusher.
Furthermore, the uncovering safety system further comprises a safety rod, a limiting pin and a limiting plate, the limiting pin is arranged on the upper casing, the limiting plate is arranged on the lower casing, the upper casing is prevented from continuously tipping backwards when the limiting pin is in contact with the limiting plate, one end of the safety rod is hinged to the lower casing, and when the limiting pin is in contact with the limiting plate, the other end of the safety rod is supported with the upper casing to prevent the upper casing from tipping forwards.
Further, the protection chain is provided with one layer, and the protection rubber is provided with three layers.
Further, three layers of the protective rubber are assembled in a staggered mode.
The observation door safety system mainly has the main function of ensuring that the power source of the impact crusher is cut off when the observation door is opened; the uncovering safety system is mainly used for ensuring that a power source of the impact crusher is cut off after the upper shell is uncovered, and setting mechanical limit on the upper shell; the rotor overhauling safety system mainly has the function of ensuring that the rotor is completely locked when the rotor is overhauled; the feed inlet safety system mainly has the advantages that multilayer protection is added on the feed inlet, and high-speed materials are prevented from flying out.
The invention has the beneficial effects that: in the process of checking, overhauling and maintaining the impact crusher, the crushing main machine is ensured to stop working completely, the upper shell after being opened is ensured to be mechanically limited and locked, the rotor which is possibly rotated is ensured to be completely locked, and the safety of equipment and operators is ensured. In the working process of the impact crusher, a plurality of layers of protection are applied to a feeding hole with the possibility of flying out of high-speed materials, so that the materials are prevented from harming equipment and personnel.
Drawings
FIG. 1 is a schematic view of the present invention showing the door closed;
FIG. 2 is a schematic view of the present invention showing the door open;
FIG. 3 is a schematic view of the locking mechanism of the present invention;
FIG. 4 is a schematic view of the structure of the present invention showing the lock opened;
FIG. 5 is a schematic view of the mechanical stops of the lid opening safety system of the present invention;
FIG. 6 is an enlarged view of the mechanical stops of the lid opening safety system of the present invention;
FIG. 7 is a schematic view of the rotor service safety system of the present invention;
FIG. 8 is a schematic view of the inlet safety system of the present invention;
FIG. 9 is a schematic view of the arrangement of the protective rubber of the present invention;
in the figure, 1, an observation door, 2, limit switches I and 3, a plug-in board, 4, an upper casing, 5, a lower casing, 6, limit switches II and 7, a lock catch, 8, a safety rod, 9, a limit pin, 10, a limit plate, 11, a limit pin shaft, 12, a rotor body, 13, a protection chain, 14 and protection rubber.
Detailed Description
The invention is further illustrated below with reference to the figures and examples.
As shown in fig. 1 to 9, a safe operating system of an impact crusher includes an observation door safety system, a cover opening safety system, a rotor maintenance safety system, and a feed inlet safety system;
as shown in fig. 1 and 2, the observation door safety system comprises a limit switch i 2 arranged below an observation door 1, wherein the limit switch i 2 is used for signal connection with a control system, the observation door 1 is completely locked through a plug-in board 3, and when the observation door 1 is closed, the lower end of the plug-in board 3 touches a contact of the limit switch i 2; when the observation door 1 is closed, the observation door 1 needs to be completely locked by the insertion plate 3, at the moment, the lower end of the insertion plate 3 touches a contact of the limit switch I2, the limit switch I2 obtains an electric signal, a power source (an engine or a motor or a clutch) of the impact crusher is cut off by the control system to shield the signal, and the equipment can normally run; when observation door 1 was opened, need tear plugboard 3 open, the I2 contact of limit switch is kept away from to plugboard 3 lower extreme this moment, and limit switch I2 obtains the signal, resets impact crusher power supply cutting signal through control system, ensures that equipment no longer operates.
As shown in fig. 3 and 4, the cover opening safety system comprises a limit switch ii 6 arranged on the upper housing 4, and when the latch 7 hinged on the lower housing 5 locks the upper housing 4 and the lower housing 5, the latch 7 contacts with a contact of the limit switch ii 6; when the lower shell 5 is closed, the lock catch 7 needs to be installed in place, at the moment, the lock catch 7 touches a contact of the limit switch II 6, the limit switch II 6 obtains an electric signal, a control system cuts off a power source (an engine or a motor or a clutch) of the impact crusher to shield the signal, and the equipment can normally run; when the upper shell 4 is opened, the lock catch 7 needs to be detached, the lock catch 7 is far away from a contact of the limit switch II 6, the limit switch II 6 obtains a signal, and the power source cut-off signal of the impact crusher is reset through the control system, so that the operation of the equipment is guaranteed. Further, as shown in fig. 5 and 6, the lid opening safety system further includes a safety lever 8, a limit pin 9 and a limit plate 10, the limit pin 9 is disposed on the upper casing 4, the limit plate 10 is disposed on the lower casing 5, the limit pin 9 prevents the upper casing 4 from continuously tipping backwards when contacting the limit plate 10, one end of the safety lever 8 is hinged to the lower casing 5, and when the limit pin 9 contacts the limit plate 10, the other end of the safety lever 8 is supported by the upper casing 4 to prevent the upper casing 4 from tipping forwards. When the upper shell 4 is opened, the limit pin 9 of the upper shell 4 moves to the limit plate 10 of the lower shell 5 along with the upper shell 4, so that the upper shell 4 is prevented from tipping backwards, and a mechanical limit effect is achieved; meanwhile, the other end of the safety rod 8 is supported on the upper shell 4 to prevent the upper shell 4 from tipping forwards, so that the mechanical limiting effect is achieved.
As shown in fig. 7, the rotor service safety system includes a limit pin 11 for limiting the rotation of the rotor body 12; when rotor maintenance is needed, the casing is opened, so that the equipment is ensured not to operate any more, namely, when the rotor maintenance is needed, the cover opening safety system is opened. Because the rotor body 12 part is demolishd or the unbalance that leads to when increasing, rotor body 12 has the rotation risk, consequently, after uncapping, rotor overhauls preceding installation spacing round pin axle 11, is connected lower casing 5 and rotor body 12, prevents that the rotor from rotating.
As shown in fig. 8 and 9, the feed inlet safety system includes a guard chain 13 and a guard rubber 14 provided at the feed inlet of the impact crusher. When the impact crusher works, high-speed materials in the crusher easily fly out of the feeding hole, so that one layer of the protective chain 13 and three layers of the protective rubber 14 are added at the feeding hole. In order not to influence the material entering the crushing cavity, the three layers of the protective rubber 14 are assembled in a staggered mode.

Claims (4)

1. A safe operating system of an impact crusher, characterized in that: the system comprises an observation door safety system, an uncovering safety system, a rotor overhauling safety system and a feeding hole safety system;
the observation door safety system comprises a limit switch I (2) arranged below an observation door (1), wherein the limit switch I (2) is used for being in signal connection with a control system, the observation door (1) is completely locked through an insertion plate (3), and when the observation door (1) is closed, the lower end of the insertion plate (3) touches a contact of the limit switch I (2);
the cover opening safety system comprises a limit switch II (6) arranged on the upper shell (4), and when a lock catch (7) hinged to the lower shell (5) locks the upper shell (4) and the lower shell (5), the lock catch (7) is contacted with a contact of the limit switch II (6);
the rotor overhauling safety system comprises a limiting pin shaft (11) for limiting the rotation of a rotor body (12);
the feed inlet safety system comprises a protection chain (13) and protection rubber (14) which are arranged at the feed inlet of the impact crusher.
2. A safe operating system of an impact crusher as claimed in claim 1, characterized in that: the uncovering safety system further comprises a safety rod (8), a limiting pin (9) and a limiting plate (10), the limiting pin (9) is arranged on the upper casing (4), the limiting plate (10) is arranged on the lower casing (5), the limiting pin (9) and the limiting plate (10) prevent the upper casing (4) from continuously tilting backwards when in contact, one end of the safety rod (8) is hinged on the lower casing (5), and when the limiting pin (9) is in contact with the limiting plate (10), the other end of the safety rod (8) is mutually supported with the upper casing (4) to prevent the upper casing (4) from tilting forwards.
3. A safe operating system of an impact crusher as claimed in claim 1, characterized in that: the protection chain (13) is provided with one layer, and the protection rubber (14) is provided with three layers.
4. A safe operating system of an impact crusher according to claim 3, characterized in that: the three layers of the protective rubber (14) are assembled in a staggered mode.
CN202011298047.2A 2020-11-19 2020-11-19 Safe operating system of impact crusher Pending CN112317069A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202011298047.2A CN112317069A (en) 2020-11-19 2020-11-19 Safe operating system of impact crusher

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202011298047.2A CN112317069A (en) 2020-11-19 2020-11-19 Safe operating system of impact crusher

Publications (1)

Publication Number Publication Date
CN112317069A true CN112317069A (en) 2021-02-05

Family

ID=74320908

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202011298047.2A Pending CN112317069A (en) 2020-11-19 2020-11-19 Safe operating system of impact crusher

Country Status (1)

Country Link
CN (1) CN112317069A (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105854991A (en) * 2016-05-04 2016-08-17 四川省品信机械有限公司 Novel energy-saving smashing machine
CN206604589U (en) * 2017-02-16 2017-11-03 应剑 A kind of uncovering power-off protection structure of pulverizer
CN207680700U (en) * 2017-11-01 2018-08-03 徐工集团工程机械有限公司 Pan feeding mouth structure and impact breaker
CN208512673U (en) * 2018-06-19 2019-02-19 河南旭盛重工机械有限公司 A kind of impact crusher rotor portion maintenance locking device
CN208711827U (en) * 2018-07-27 2019-04-09 张会见 A kind of new type crushing machine
CN209476447U (en) * 2018-10-10 2019-10-11 新兴铸管股份有限公司 A kind of safety fastening device of wet coal crushing chamber of crusher

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105854991A (en) * 2016-05-04 2016-08-17 四川省品信机械有限公司 Novel energy-saving smashing machine
CN206604589U (en) * 2017-02-16 2017-11-03 应剑 A kind of uncovering power-off protection structure of pulverizer
CN207680700U (en) * 2017-11-01 2018-08-03 徐工集团工程机械有限公司 Pan feeding mouth structure and impact breaker
CN208512673U (en) * 2018-06-19 2019-02-19 河南旭盛重工机械有限公司 A kind of impact crusher rotor portion maintenance locking device
CN208711827U (en) * 2018-07-27 2019-04-09 张会见 A kind of new type crushing machine
CN209476447U (en) * 2018-10-10 2019-10-11 新兴铸管股份有限公司 A kind of safety fastening device of wet coal crushing chamber of crusher

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