Restricting service access to HSI crusher rooms.

Abstract

In a regulating device (160) for controlling access to a crushing chamber (130) of a horizontal shaft crusher (110), a horizontal shaft crusher (110) equipped with the regulating device (160), and a method (600), a first regulating unit (210) has an operating mode for closing an inspection and service hatch (150) for accessing the crushing chamber (130) and an inspection and service mode for allowing the hatch to be opened, and a second regulating unit (220) has an operating mode for not controlling the horizontal shaft (140) and an inspection and service mode for controlling the horizontal shaft (140), and the first and second regulating units (210, 220) are mutually exclusive in the operating modes so that the crushing chamber (130) cannot be accessed through the inspection and service hatch (150) unless the second regulating unit (220) controls the horizontal shaft (140).

Description

Technical Field

[0001] The present invention generally relates to the regulation of access for inspection and repair to a Horizontal Shaft Impactor (HSI) crusher chamber. The present invention particularly relates to, but is not limited to, the regulation of at least one of the access opening and the safety aspect of the HSI rotor.

Background Art

[0002] In this section, useful background information is described, but no technique described in this specification is admitted as representing the prior art.

[0003] The HSI crusher operates on a horizontal axis provided with a plurality of crushing elements extending in the radial direction. The crushing elements crush stones by hitting a member that does not bend significantly against the stones and throwing the stones against a sturdy opposing surface. The HSI crusher has a housing in which crushing is performed.

[0004] For access for inspection and repair, there are also HSI crushers having inspection and repair openings closed by doors, lids, and hatches (collectively referred to as hatches in this specification). The hatch is hinged to the housing. By the hatch, the state of the crushing elements when the crusher is stopped can be confirmed. There are also HSI crushing elements configured to lift the upper part of the housing and open it in the vertical direction. When the entire upper part is opened, the entire horizontal axis can be replaced together with the crushing elements and the wearing parts providing the opposing surface.

[0005] As a safety measure, to prevent the shaft from rotating during inspection and repair, the horizontal shaft is locked with a pin at one of four different positions. For example, when removing a part of the crushing element or when removing residual mineral material that was on one side of the horizontal shaft, the horizontal shaft may suddenly start to rotate. Such a sudden rotation of the horizontal shaft can be dangerous. It is desirable to further improve the safety of maintenance of the HSI crusher and / or to facilitate access for inspection and repair to the HSI crusher, and in particular to provide a compact arrangement for mobile crushing plants where the space for maintenance work is limited. Abstract

[0006] The scope of protection is defined by the appended claims. Examples and technical explanations of devices, products, and / or methods in the description and / or drawings that are not included in the claims are presented not as embodiments of the present invention but as background art or examples useful for understanding the present invention.

[0007] According to a first exemplary aspect of the present invention, there is provided a regulating device for a horizontal shaft crusher comprising a crushing chamber and an inspection and repair hatch for opening and closing an inspection and repair entrance to the crushing chamber. The regulating device a first regulating part movable between a closed state that restricts the opening of the inspection and repair hatch for inspection and repair access and an access state that allows the opening of the inspection and repair hatch, a second regulating part movable between an operating state and a control state and having an engaging member. When the second regulating part is in the control state, the engaging member is in a use position for restricting the rotation of the horizontal shaft, When the second regulating part is in the operating state, the engaging member is in an idle position where it does not restrict the rotation of the horizontal shaft. The first regulating part and the second regulating part cooperate to prevent the first regulating part from moving from the closed state to the access state when the second regulating part is in the operating state, When the first regulating part is in the access state, prevent the second regulating part from moving from the control state to the operating state, enable the first regulating part to move from the access state to the closed state, enable the second regulating part to move from the operating state to the control state, and be configured as such.

[0008] In the closed state, the first regulating part may maintain the hatch in a closed state so as to close access to the crushing chamber through the hatch opening covered by the inspection and repair hatch. In the access state, the first regulating part may enable the opening of the hatch so as to enable access to the crushing chamber through the hatch opening.

[0009] Although it is not necessary to always operate the horizontal axis when the second regulating part is in the operating state, in the operating state, the second regulating part may be enabled to operate the horizontal axis. In the control state, the second regulating part may control the movement of the horizontal axis by braking the horizontal axis or being in a state where it can do so, or by having an inspection and repair drive part connected to the horizontal axis. This inspection and repair drive part may use a drive motor for operating the horizontal axis and may be powered by an inspection and repair power supply. For this inspection and repair power supply, a hydraulic pump different from the pump used to operate the horizontal axis in the operation of crushing mineral materials or the same hydraulic pump may be used, or a low-output drive such as a battery-powered motor may be used.

[0010] The first regulating part may be movable along a first free orbit. The first free orbit may refer to the path along which the first regulating part moves when switching between the access state and the closed state.

[0011] The second regulating part may be movable along a second free orbit. The second free orbit may refer to the path along which the second regulating part moves when switching between the control state and the operating state.

[0012] The first regulating part may be configured to close the second free orbit unless it is in the closed state. The first regulating part may include a first closing member configured to close the second free orbit unless it is in the closed state. The first closing member may include a first main body. The first main body may be formed to include a contact edge configured to contact the second main body of the second regulating part. The first main body may be formed of a plate material, optionally a steel plate. The steel plate may have a thickness of 16 mm ± 10 mm.

[0013] The second regulating part may be configured to close the first free orbit unless it is in the control state. The second regulating part may include a second closing member configured to close the first free orbit unless it is in the control state. The second closing member may include the second main body. The second main body may be formed to include a contact edge configured to contact the first main body of the first regulating part. The second main body may be formed of a plate material, optionally a steel plate. The second main body may be one side surface. The steel plate may have a thickness of 16 mm ± 10 mm.

[0014] When the first regulating part is in the access state, the first regulating part may be configured to form a tread surface on which an operator can ride in order to use the inspection and repair hatch.

[0015] The first regulating part may be connected by a hinge so as to move along the first free orbit. The first regulating part may have a sliding mounting part that enables the first regulating part to slide along the first free orbit.

[0016] The second regulating part may be connected by a hinge so as to move along the second free orbit. The second regulating part may have a sliding mounting part that enables the second regulating part to slide along the second free orbit.

[0017] The first regulating part may be integrated with the inspection and repair hatch. The inspection and repair hatch may be hinged in the horizontal direction. When the inspection and repair hatch is opened, it may be hinged so that the second regulating part is prevented from moving to the operating state by the end of the inspection and repair hatch. The second regulating part may be hinged perpendicularly to the hinge axis of the first regulating part. "Perpendicular" may refer to an angle between 80 degrees and 100 degrees. The hinge axis of the second regulating part may be arranged at a position close to the inspection and repair hatch, whereby the second regulating part may be prevented from rotating more than 1 mm, 5 mm, 1 cm, 2 cm, or 5 cm towards the open state unless it is in the control state.

[0018] The engagement member may be provided with a brake configured to suppress the horizontal axis from starting to rotate due to an unbalanced load. The brake may be a disk brake. The brake may be configured to either brake or not brake the horizontal axis while the second regulating part is in the control state.

[0019] The crushing chamber may be provided with a plurality of crushing elements configured to generate a crushing force on the mineral material object being crushed. The crushing elements may be supported by a horizontal axis.

[0020] The engagement member may be provided with an inspection and repair drive connection part configured to enable controlled inspection and repair rotation of the horizontal axis at an inspection and repair speed. The inspection and repair drive connection part may be provided with gears. The inspection and repair drive connection part may be provided with a belt. The inspection and repair drive connection part may be provided with a clutch part. The inspection and repair speed may be such that the plurality of crushing elements supported by the horizontal axis move at a maximum of 1 cm / second, 2 cm / second, 5 cm / second, or 10 cm / second.

[0021] The inspection and repair drive unit may include a motor. The motor may be a hydraulic motor. The motor may be an electric motor. The inspection and repair drive unit may include a gear assembly configured to engage with the horizontal shaft.

[0022] One side in the radial direction of the horizontal shaft may be configured to withstand an unbalanced load momentum that is at least 1000 Nm, 1500 Nm, 3000 Nm, 5000 Nm, or 10000 Nm greater than the opposite side.

[0023] This regulating device is considered to be particularly useful for a crusher having an enclosure protection part with horizontal shaft drive for crushing mineral materials and access for inspection and repair of the horizontal shaft.

[0024] According to a second exemplary aspect of the present invention, there is provided an inspection and repair access regulation method for a horizontal shaft crusher including a crushing chamber and an inspection and repair hatch for opening and closing an inspection and repair inlet to the crushing chamber. The method includes supporting a first regulating part movably between a closed state for restricting the opening of the inspection and repair hatch for inspection and repair access and an access state for allowing the opening of the inspection and repair hatch, supporting a second regulating part movably between a control state and an operating state, supporting the engagement member movably by the second regulating part such that the engagement member is in a use position for restricting the rotation of the horizontal shaft when the second regulating part is in the control state, and the engagement member is in an idle position for not restricting the rotation of the horizontal shaft when the second regulating part is in the operating state, including. The method further uses the first regulating part and the second regulating part together to prevent the first regulating part from moving from the closed state to the access state when the second regulating part is in the operating state, prevent the second regulating part from moving from the control state to the operating state when the first regulating part is in the access state, enabling the movement of the first regulating unit from the access state to the closed state, including enabling the movement of the second regulating unit from the operating state to the control state.

[0025] According to a third exemplary aspect of the present invention, a horizontal shaft crusher including the regulating device of the first exemplary aspect is provided.

[0026] The horizontal shaft crusher may be a horizontal shaft impactor.

[0027] According to a fourth exemplary aspect of the present invention, a mineral material crushing device including the horizontal shaft crusher of the third exemplary aspect is provided.

[0028] According to a fifth exemplary aspect of the present invention, a mineral material crushing plant including the mineral material crushing device is provided. The mineral material crushing plant may include a housing. The housing may include a plurality of crawlers. The housing may include a plurality of wheels.

[0029] According to a sixth exemplary aspect of the present invention, a regulating device for controlling access to a crushing chamber of a horizontal shaft crusher is provided. The regulating device includes a first regulating unit having an operation mode for closing an inspection and repair hatch for accessing the crushing chamber and an inspection and repair mode for enabling opening, and a second regulating unit having an operation mode for not controlling the horizontal shaft and an inspection and repair mode for controlling the horizontal shaft. The first regulating unit and the second regulating unit are configured to be mutually exclusively usable in the operation mode so that access to the crushing chamber through the inspection and repair hatch is not possible as long as the second regulating unit does not control the horizontal shaft.

[0030] The mineral material crushing plant may be a mobile mineral material crushing plant.

[0031] Various non-limiting exemplary aspects and embodiments of the present invention have been described above. The foregoing embodiments are merely used to illustrate selected aspects or steps that may be utilized in the implementation of the present invention. Some embodiments may be presented only with reference to specific exemplary aspects of the present invention. It should be understood that the corresponding embodiments may also be applicable to other exemplary aspects.

Brief Description of the Drawings

[0032] Some exemplary embodiments of the present invention will be described with reference to the accompanying drawings.

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

[0033] In the following description, like reference numerals indicate like elements or steps.

[0034] FIG. 1 is a schematic diagram showing a crushing plant 100 according to an embodiment. The crushing plant includes a horizontal shaft crusher 110 having a housing 120 surrounding a crushing chamber 130, a horizontal shaft 140, and a plurality of crushing elements 142 supported by the horizontal shaft 140. The horizontal shaft crusher 110 further includes an inspection and repair hatch 150 for opening and closing an inspection and repair entrance to the crushing chamber 130. The horizontal shaft crusher 110 further includes a regulating device 160. The regulating device 160 is configured to control so that the inspection and repair hatch 150 is not opened while the horizontal shaft 140 can be operated for crushing or while it rotates by itself when the balance is lost. The crushing plant further includes crawlers 170 or wheels to provide maneuverability in a quarry, on-site, or on a road.

[0035] In one embodiment, the regulating device 160 is attached to the crushing plant via the main body of the crushing plant. One or more components of the regulating device may be attached to the housing 120.

[0036] FIG. 2 is a schematic diagram of a regulating device according to an embodiment, showing the horizontal shaft 140 and the inspection and repair hatch 150. The regulating device 160 includes a first regulating part 210 movable between a closed state for restricting the opening of the inspection and repair hatch 150 and an access state for allowing it (e.g., using a first hinge 212), and a second regulating part 220 movable between an operating state and a control state (e.g., using a second hinge 222). The second regulating part includes engaging members 224, 530.

[0037] In the control state, the engaging members 224, 530 are in a use position for restricting the rotation of the horizontal shaft 140. In the operating state, the engaging members 224, 530 are in an idle position where they do not restrict the rotation of the horizontal shaft 140.

[0038] Both the first and second regulating parts 210, 220 prevent the first regulating part 210 from moving from the closed state to the access state when the second regulating part 220 is in the operating state, When the first regulating unit 210 is in the access state, it prevents the second regulating unit 220 from moving from the control state to the operating state. It enables the first regulating unit 210 to move from the access state to the closed state. It is configured to enable the second regulating unit 220 to move from the operating state to the control state.

[0039] In FIG. 2, the engagement member 224 includes a brake 224 configured to suppress the horizontal axis 140 from starting to rotate due to an unbalanced load. The brake 224 is, for example, a disc brake.

[0040] In FIG. 1, a plurality of crushing elements 142 such as crushing elements in the crushing chamber for applying a crushing force to the crushed mineral material object are shown. The crushing elements 142 are supported by the horizontal axis 140.

[0041] The first regulating unit 210 is movable along the first free orbit 230. The first free orbit 230 refers to the path along which the first regulating unit 210 moves when switching between the access state and the closed state.

[0042] The second regulating unit 220 is movable along the second free orbit 240. The second free orbit 240 refers to the path along which the second regulating unit 220 moves when switching between the operating state and the control state.

[0043] The first regulating unit 210 in FIG. 2 is hingedly connected so as to move along the first free orbit 230. In another embodiment, the first regulating unit 210 has a sliding mounting portion that enables the first regulating unit 210 to slide along the first free orbit.

[0044] The second regulating unit 220 in FIG. 2 is hingedly connected so as to move along the second free orbit 240. In another embodiment, the second regulating unit 220 has a sliding mounting portion that enables the second regulating unit 220 to slide along the second free orbit.

[0045] In one embodiment, the first restricting portion 210 is integrated with the inspection and repair hatch 150. The inspection and repair hatch 150 may be hingedly connected in the horizontal direction. For example, the inspection and repair hatch 150 can be hingedly connected such that when it is opened, the second restricting portion 220 is prevented from moving to the operating state by the end of the inspection and repair hatch 150. The second restricting portion 220 may be hingedly connected perpendicular to the hinge axis of the first restricting portion 210. The hinge axis of the second restricting portion 220 may be disposed at a position close to the inspection and repair hatch 150, whereby the second restricting portion 220 may be configured such that it cannot rotate more than 1 mm, 5 mm, 1 cm, 2 cm, or 5 cm towards the open state unless it is in the control state.

[0046] In one embodiment, the first restricting portion 210 includes one or more additional components. In one embodiment, the first restricting portion 210 includes a hydraulic circuit or an electric circuit. This circuit may include a hatch latch actuator 154 for operating the hatch latch 152.

[0047] In one embodiment, the second restricting portion 220 includes one or more additional components. In one embodiment, the second restricting portion 220 includes a hydraulic circuit or an electric circuit. This circuit may include a brake actuator.

[0048] In one embodiment, the second restricting portion is configured to release the hatch latch 152 only when the brake 224 restricts the shaft 140. The hatch latch 152 may be configured to forcibly stabilize the shaft 140 before the hatch 150 is opened. The brake 224 may be controllably relaxed or deactivated while the hatch is open so as to be ready for reuse to restrict the shaft 140.

[0049] FIG. 3 is a perspective view of a restricting device according to one embodiment when the first restricting portion 210 is in the closed state and the second restricting portion 220 is in the operating state. FIG. 4 is a perspective view of the restricting device of FIG. 3 when the second restricting portion 220 is in the control state.

[0050] In FIG. 3, the first regulating part 210 includes a first closing member configured to close the second free orbit unless it is in a closed state. Here, the first blocking member has a first main body formed to include a contact edge configured to contact the second main body of the second regulating part 220. The first main body is formed of a plate material, optionally a steel plate. The steel plate has a thickness of, for example, at least 16 mm ± 10 mm.

[0051] The second regulating part 220 in FIG. 3 includes a second closing member configured to close the first free orbit unless it is in a control state. The second closing member may include a second main body. The second main body may be formed to include a contact edge configured to contact the first main body of the first regulating part 210. The second main body may be formed of a plate material, optionally a steel plate. The second main body may be one side surface. The steel plate may have a thickness of at least 16 mm ± 10 mm.

[0052] The first regulating part 210 in FIG. 3 is configured to form a tread surface on which an operator can step to use the inspection and repair hatch 150 when the first regulating part 210 is in an access state (the state in which the first regulating part 210 shown in FIG. 4 rotates and descends) where the first regulating part 210 does not obstruct the inspection and repair hatch 150.

[0053] FIG. 5 is a front view of another regulating device 500 including an inspection and repair driving part instead of or in addition to a brake in order for the second regulating part 220 to enable controlled inspection and repair rotation of the horizontal axis 140 at an inspection and repair speed. The inspection and repair speed may be a speed at which a plurality of crushing elements supported by the horizontal axis move at a maximum of 1 cm / second, 2 cm / second, 5 cm / second, or 10 cm / second.

[0054] As shown in FIG. 5, an actuator 510 for moving the second regulating unit may be provided. The actuator in FIG. 5 is a hydraulic cylinder. In other embodiments, the actuator is a solenoid, a linear motor, a pneumatic cylinder, or a rotary actuator, or includes them. In one embodiment, the first regulating unit 210 also, or the first regulating unit 210 alone, is moved by a second actuator (not shown). The second actuator may be the same as or different from the actuator of the second regulating unit 220.

[0055] In FIG. 5, the inspection and repair drive unit includes a motor 520 such as a hydraulic motor or an electric motor. In FIG. 5, the inspection and repair drive unit includes a gear assembly configured to engage with a horizontal axis. FIG. 5 shows a first cogwheel 530 driven by a motor 520 (e.g., via a gear device) and a second cogwheel 540 attached to the horizontal axis 140.

[0056] The inspection and repair drive unit may include a braking mechanism. This braking mechanism may include one or more check valves when the motor 520 is a hydraulic motor. The braking mechanism may include a gear device having a speed ratio such that the roundness of the rotor of the motor is greater than 7:1, 10:0, or 50:1 with respect to the roundness of the connecting element configured to operate or drive as a connecting member.

[0057] FIG. 6 is a flowchart of an inspection and repair access control method 600 for a horizontal shaft crusher 110 including a crushing chamber 130 and an inspection and repair hatch 150 for opening and closing an inspection and repair inlet 150 to the crushing chamber 130. This method includes the following. 610: Supporting the first regulating unit 210 to be movable between a closed state that restricts the opening of the inspection and repair hatch 150 for inspection and repair access and an access state that permits it. 620: Supporting the second regulating unit 220 to be movable between a control state and an operating state. 630: The second restricting part 220 movably supports the engaging members 224 and 530. Thereby, when the second restricting part 220 is in the control state, the engaging members 224 and 530 are in the use positions for restricting the rotation of the horizontal axis 140, and when the second restricting part 220 is in the operating state, the engaging members 224 and 530 are in the idle positions where they do not restrict the rotation of the horizontal axis 140. 640: Use the first and second restricting parts 210 and 220 together to prevent the first restricting part 210 from moving from the closed state to the access state when the second restricting part 220 is in the operating state. 650: Use the first and second restricting parts 210 and 220 together to prevent the second restricting part 220 from moving from the control state to the operating state when the first restricting part 210 is in the access state. 660: Use the first and second restricting parts 210 and 220 together to enable the first restricting part 210 to move from the access state to the closed state. 670: Use the first and second restricting parts 210 and 220 together to enable the second restricting part 220 to move from the operating state to the control state.

[0058] Various embodiments have been presented. In this specification, it should be understood that the words "comprising", "including", and "containing" are used as open-ended expressions that do not intend exclusivity.

[0059] Through the above description, a complete and detailed description of the best mode currently contemplated by the inventors for implementing the present invention has been provided by way of non-limiting examples of specific implementations and embodiments of the present invention. However, it will be apparent to those skilled in the art that the present invention is not limited to the details of the foregoing embodiments, and that other embodiments using equivalent means or different combinations of a plurality of embodiments can be implemented without departing from the features of the present invention.

[0060] Furthermore, some of the features of the foregoing disclosed embodiments of the present invention can be advantageously used without using other corresponding features. Thus, the foregoing description is merely for explaining the principle of the present invention and should not be considered as limiting it. Therefore, the scope of the present invention is limited only by the appended claims.

Claims

1. A regulating device for a horizontal shaft crusher having a crushing chamber and a service hatch for opening and closing a service entrance to the crushing chamber, the regulating device comprising: a first restricting portion that is changeable between a closed state that restricts the opening of the inspection and repair hatch and an access state that allows the opening of the inspection and repair hatch; a second restriction portion that is changeable between an operating state and a control state and has an engagement member; Equipped with When the second restricting portion is in the control state, the engaging member is in a use position for restricting rotation of the horizontal shaft, When the second restricting portion is in the operating state, the engaging member is in an idle position that does not restrict rotation of the horizontal shaft, The first restriction portion and the second restriction portion cooperate with each other to preventing the first restriction portion from changing from the closed state to the accessed state when the second restriction portion is in the operating state; preventing the second restriction unit from changing from the control state to the operating state when the first restriction unit is in the access state; enabling the first restriction portion to change from the access state to the closed state; enabling the second restricting portion to change from the operating state to the controlled state; It is configured as follows: Regulatory device.

2. The restricting device according to claim 1 , wherein the first restricting portion is capable of changing a state along a first free trajectory.

3. The restricting device according to claim 1 or 2, wherein the second restricting portion is capable of changing a state along a second free trajectory.

4. The restricting device of claim 3 , wherein the first restricting portion is configured to close the second free track unless the first restricting portion is in the closed state.

5. The restricting device of claim 2 , wherein the second restricting portion is configured to close the first free trajectory unless the controlled state is present.

6. The restricting device of claim 1 , wherein the first restricting portion is hinged for change of state along a first free trajectory.

7. A regulating device as described in claim 6, wherein the first regulating portion allows an operator to stand on its upward surface when the first regulating portion is in the access state.

8. The restricting device according to claim 6 or 7, wherein the second restricting portion is hinged to change state along a second free trajectory.

9. A regulating device as described in Claim 8, wherein the second regulating part has a hinge axis perpendicular to the hinge axis of the first regulating part.

10. The restricting device according to claim 1 , wherein the first restricting portion is integrated into the service hatch.

11. The limiting device of claim 1 , wherein the engagement member comprises a brake configured to inhibit the horizontal axis from beginning to rotate due to an unbalanced load.

12. A restricting device according to any preceding claim, wherein the engagement member comprises a servicing drive configured to enable controlled servicing rotation of the horizontal shaft at a servicing speed.

13. A horizontal shaft crusher; A restricting device according to any one of claims 1 to 12, 1. A mineral material crushing device comprising:

14. 1. A method of regulating servicing access for a horizontal shaft crusher having a crushing chamber and a service hatch for opening and closing a service entrance to the crushing chamber, the method comprising: supporting a first restriction portion so as to be capable of changing between a closed state that restricts opening of the inspection and repair hatch and an access state that allows opening of the inspection and repair hatch; Supporting the second restriction portion so as to be capable of changing between an operating state and a control state; supporting the engaging member by the second restricting portion in a state changeable manner such that, when the second restricting portion is in the control state, the engaging member is in a use position for restricting the rotation of the horizontal shaft, and, when the second restricting portion is in the operating state, the engaging member is in an idle position for not restricting the rotation of the horizontal shaft; Including, The first restriction portion and the second restriction portion cooperate with each other to preventing the first restriction portion from changing from the closed state to the accessed state when the second restriction portion is in the operating state; preventing the second restriction unit from changing from the control state to the operating state when the first restriction unit is in the access state; enabling the first restriction portion to change from the access state to the closed state; enabling the second restricting portion to change from the operating state to the controlled state; Methods for controlling access for inspection and repair.

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