JP6069443B1 - Crusher equipment - Google Patents

Abstract

An object of the present invention is to more reliably prevent foreign matter from being caught between a pair of rotating rollers of a crusher device, and a first rotating roll 1 rotating around an axis, and a first rotating roll 1 disposed along the first rotating roll 1. A second rotary roll 2 that is movable in a direction approaching and moving away from the first rotary roll 1, a link mechanism 20 that connects the fixed frame F and the second rotary roll 2, and a second rotary roll A crusher device provided with a weight device 30 attached to the link mechanism 20 in order to press 2 toward the first rotating roll 1 side. The weight device 30 gradually presses the second rotary roll 2 toward the first rotary roll 1 as the link mechanism 20 moves due to the second rotary roll 2 moving away from the first rotary roll 1. It is installed in a position where the force is reduced. [Selection] Figure 1

Description

  The present invention relates to a crusher device that is provided on the downstream side of a sorting device or the like that sorts various objects to be processed according to their sizes, and crushes non-processed materials between two rolls.

  In general, a sorting device is used to sort an object to be processed in which objects of different sizes are mixed according to the size. As a sorting device, for example, an object to be processed is placed on a roller with a plurality of rings (rotors) that are rotationally driven, and sent to the discharge side by rotation of the ring, and dropped into a gap formed between the rollers. There is what is called a roller screen that performs sorting operations.

  For example, as shown in FIG. 4, the object to be processed is supplied onto a conveying surface formed by a roller 51 provided in a sorting device (roller screen) 50 and receives a force by rotation of a ring that rotates together with the roller 51. It moves from the supply side to the discharge side along the feed direction. During the movement, those having a small outer shape fall downward from the gap between the rings and are sorted (see, for example, Patent Documents 1 and 2).

  Examples of the object to be processed by the roller screen include ores such as coal, crushed stones, ore, other stone materials, construction waste materials, wood, earth and sand, and the like.

  On the downstream side of the sorting device 50, a crusher device 40 that crushes non-processed material between two rotating rolls 41 and 42 that are rotated by a driving force is provided (for example, see Patent Document 3).

  As the crusher device 40, one rotary roll 42 is suspended through a swingable arm 45, and the distance between the rotary roll 41 and the other rotary roll 41 is variable by the swing. is there.

  When foreign matter enters between the rotary rolls 41, 42, the arm 45 supporting one rotary roll 42 swings, and one rotary roll 42 is separated from the other rotary roll 41, so that foreign matter is not caught. Is prevented. Further, one rotating roll 42 on the swinging side is pressed against the other rotating roll 41 by a pressing device 43 attached between the arm 45 and the like and a fixed frame, and the object to be processed is stably crushed. Is possible.

JP-A-8-71505 JP 2001-334212 A JP 2004-267841 A

  In the crusher device described above, when foreign matter is caught between the rotating rolls, or when biting occurs, depending on the location of the foreign matter, the axial direction of the two rotating rolls is parallel (hereinafter, parallel). May not be maintained, and the axial directions of the two rotating rolls may not be parallel but may have an angle with each other (hereinafter referred to as a non-parallel state).

  For example, when the location of the foreign matter that has entered is in a position that is offset from the axial center of the pair of rotating rollers to one side in the axial direction, the pair of rotating rollers are open in one axial direction and non-parallel with the other axial direction approaching. Prone to state. The occurrence of such a non-parallel state is not preferable because it induces the biting of foreign matter and inhibits the discharge of the bitten foreign matter.

  Accordingly, an object of the present invention is to more reliably prevent foreign matter from being caught between a pair of rotating rollers of a crusher device.

  In order to solve the above-described problems, the present invention provides a first rotating roll that rotates around an axis, and a direction that is disposed along the first rotating roll and approaches and separates from the first rotating roll. A movable second rotating roll, a link mechanism connecting the fixed frame and the second rotating roll, and the link mechanism for pressing the second rotating roll toward the first rotating roll. A crusher device equipped with an attached weight device was adopted.

  The weight device is configured to gradually press the second rotating roll toward the first rotating roll as the link mechanism moves due to the second rotating roll moving away from the first rotating roll. It is possible to employ a configuration that is attached at a position where there is less.

  In addition, it is possible to adopt a configuration in which the rotating shaft of the second rotating roll is attached to a swingable arm, and the link mechanism connects the frame and the second rotating roll via the arm. it can.

  In each of these configurations, it is possible to employ a configuration in which the link mechanism is a link mechanism having two or more nodes connecting the frame and the arm.

  The arms are provided at both axial ends of the second rotating roll, the link mechanisms are provided between the frame and both the arms, respectively, and one of the link mechanisms and the other of the link mechanisms are provided. The structure connected with the connection member is employable.

  Further, the weight device can adopt a configuration attached to the connecting member.

  According to the present invention, it is possible to more reliably prevent foreign matter from being caught between the pair of rotating rollers of the crusher device.

(A) (b) is a front view which shows one Embodiment of this invention Plan view of the same embodiment (A) (b) is a schematic diagram which shows the positional relationship of a pair of rotation roller. Front view showing installation example of crusher device

  An embodiment of the present invention will be described with reference to the drawings. This embodiment is a crusher device 10 with a weight device link mechanism provided on the downstream side of various sorters. The crusher device 10 crushes non-processed objects between two rotating rolls 1 and 2 that are rotated by a driving force. As the sorting device, for example, various devices other than a roller screen can be adopted.

  As shown in FIGS. 1 (a) and 1 (b), the crusher device 10 is disposed along the first rotating roll 1 rotating around the axis of the rotating shaft 1a and the first rotating roll 1, And a second rotating roll 2 that is movable in a direction approaching and moving away from the one rotating roll 1.

  As shown in FIGS. 1 and 2, the first rotary roll 1 is swingable around the swing shaft 1 a provided on the fixed frame F. The position of the axis of the oscillating shaft 1a is unchanged with respect to the frame F.

  The second rotary roll 2 is suspended through a swingable arm 5 around the swing shaft 4 provided on the fixed frame F. The upper ends of the arms 5 are attached to both ends of the swing shaft 4 through bearings, and each arm 5 swings around the swing shaft 4. Further, both ends of the rotary shaft 2a of the second rotary roll 2 are attached to the lower ends of the arms 5 via bearings.

  When the arm 5 swings around the swing shaft 4, the second rotary roll 2 moves in the arc direction around the swing shaft 4. Thereby, the distance between the 2nd rotary roll 2 and the 1st rotary roll 1 is variable. In the figure, reference numerals 3; 3a, 3b denote stoppers for restricting the swing range of the arm 5, and reference numerals 6; 6a, 6b denote shock absorbers.

  The first rotating roll 1 and the second rotating roll 2 are rotated around their rotating shafts 1a and 2a by a driving force supplied from a driving source such as a motor, respectively. The object to be crushed supplied between the first rotating roll 1 and the second rotating roll 2 is crushed by the rotation.

  Depending on the material of the object to be crushed, the surfaces of the first rotating roll 1 and the second rotating roll 2 may be, for example, a cylindrical surface as in this embodiment. A thing with moderate unevenness | corrugation or a sharp convex part may be employ | adopted.

  When a foreign object enters between the first rotating roll 1 and the second rotating roll 2, the arm supporting one rotating roll swings, and one rotating doll is separated from the other rotating roll. , The biting of foreign matter is prevented.

  In this embodiment, the second rotating roll 2 that is the swinging rotating roll has a larger diameter than the first rotating roll 1 that is the fixed rotating roll. The diameter can be set freely, and gradually decreases with wear. For example, at the start of use, the second rotary roll 2 and the first rotary roll 1 may have the same diameter, or the second rotary roll 2 may have a smaller diameter than the first rotary roll 1. Also good.

  The second rotating roll 2 on the swinging side is pressed against the second rotating roll 1 by the gravity of the weight device 30 attached to the arm 5 to enable stable crushing of the workpiece.

  Here, a link mechanism 20 that connects the frame F and the second rotary roll 2 is provided. In this embodiment, the link mechanism 20 has one end attached to the arm 5 that supports the rotary shaft 2 a of the second rotary roll 2 and the other end attached to a fixed frame F. That is, the link mechanism 20 connects the frame F and the second rotary roll 2 via the arm 5.

  The link mechanism 20 is a two-node link mechanism that connects the frame F and the arm 5. Specifically, the link mechanism 20 has a first link bar 21 whose other end is swingable to the bracket 25 of the frame F via the first pin 23a, and one end thereof is third to the bracket 24 of the arm 5. And a second link bar 22 that is swingable via a pin 23c. The other end of the first link bar 21 and one end of the second link bar 22 are swingable via a second pin 23b.

  Corresponding to the relative movement of the position of the second rotary roll 2 relative to the first rotary roll 1 when the second rotary roll 2 swings around the axis of the swing axis 4, the link levers 21, 22 of the link mechanism 20 are As shown in FIGS. 1A and 1B, the link mechanism 20 swings around the pins 23a, 23b, and 23c, and the entire length of the link mechanism 20 expands and contracts in response to a change in the distance between the brackets 24 and 25.

  When the arm 5 including the bracket 24 is considered as one link bar, the link mechanism 20 includes three link levers of the first link bar 21, the second link bar 22, and the arm 5, It can also be considered as a three-joint link mechanism connecting the first pin 23a on the bracket 25 side and the swing shaft 4 of the frame F.

  In this embodiment, a two-joint link mechanism that connects the frame F and the arm 5 is employed as the link mechanism 20, but a link mechanism having another configuration including two or more joints may be employed. For example, a link mechanism having three or four or more link levers in series may be used, or a four-bar crank mechanism having four link levers arranged in parallel may be employed.

  A weight device 30 is attached to the link mechanism 20 in order to press the second rotating roll 2 toward the first rotating roll 1 side.

  The weight device 30 is attached to the first link bar 21, and gradually the second rotary roll 2 as the link mechanism 20 moves due to the second rotary roll 2 moving away from the first rotary roll 1. The force which presses to the 1st rotary roll 1 side decreases.

  Such a change in the pressing force is caused by a change in an angle (elevation angle) with respect to the horizontal direction of the link lever to which the weight device 30 is attached.

  Suppose that the link mechanism 20 has moved from the state shown in FIG. 1A to the state shown in FIG. At this time, as the second rotating roll 2 moves away from the first rotating roll 1, the first link bar 21 to which the weight device 30 is attached is changed from the state close to the horizontal in FIG. The elevation angle with respect to the horizontal direction (however, the elevation angle is an acute angle of less than 90 °) increases to the state close to the vertical of (b).

  Due to the increase of the elevation angle, the force component of the weight device 30 acting on the first link bar 21, that is, the direction orthogonal to the link axis direction connecting the centers of the pins 23 a and 23 b at both ends of the first link bar 21. The component force to becomes smaller. Since the component force acting on the first link bar 21 is reduced, the force for pressing the second rotary roll 2 toward the first rotary roll 1 is reduced. As a result, the biting of the foreign matter and the discharge of the foreign matter work smoothly.

  In addition, although the weight apparatus 30 is attached to the 1st link bar 21 furthest from the 2nd rotary roll 2, you may attach this to another link bar. For example, since the link mechanism 20 has two nodes in this embodiment, the weight device 30 may be attached to the second link bar 22 closest to the second rotary roll 2. Further, when the link mechanism 20 has three or more nodes, it may be attached to an intermediate link bar.

  At this time, the link bar to which the weight device 30 is attached increases the elevation angle with respect to the horizontal direction (however, the elevation angle is an acute angle of less than 90 °) as the second rotary roll 2 moves away from the first rotary roll 1. It only has to be set to do.

  Moreover, in this embodiment, the arm 5 is provided in the axial direction both ends of the rotating shaft 2a of the 2nd rotating roll 2, respectively. Further, the link mechanism 20 including the weight device 30 is provided between both the arms 5 and the frame F, respectively. For this reason, when a foreign object is bitten between the first rotary roll 1 and the second rotary roll 2 or when biting occurs, the first rotary roll 1 and the second rotary roll 2 is suppressed from being in a non-parallel state, and the parallel state is easily maintained.

  Moreover, as shown in FIG. 2, since the one link mechanism 20 and the other link mechanism 20 are connected by the connecting member 31, the first rotating roll 1 and the second rotating roll 2 are in a non-parallel state. Can be more effectively suppressed.

  Here, since the weight device 30 is attached to the connecting member 31, it is easy to cause the gravity of the weight device 30 to act equally on both link mechanisms 20. The weight device 30 can be set to a desired load by combining a plurality of devices having a predetermined weight.

  Further, in this embodiment, a plate-like member that connects the two link mechanisms 20 is adopted as the connecting member 31, and the weight of the weight device 30 is fixed to the plate-like member by a fixing means 32 such as a bolt. You may employ | adopt the rod-shaped member etc. which connect between both the link mechanisms 20 as the connection member 31. FIG. In any case, as the fixing means 32, well-known means can be adopted in addition to the bolts and nuts.

  In this embodiment, the weight device 30 is attached to the connecting member 31, and the gravity of the weight device 30 acts on both link mechanisms 20. However, the weight device 30 is attached to each link mechanism 20, respectively. It may be attached. In this case, a configuration in which the connecting member 31 that connects the two link mechanisms 20 is omitted may be employed.

DESCRIPTION OF SYMBOLS 1 1st rotating roll 2 2nd rotating roll 1a, 2a Rotating shaft 3 Stopper 4 Oscillating shaft 5 Arm 6 Shock absorber 10 Crusher device 20 Link mechanism 21 First link bar 22 Second link bar 23a First pin 23b Second pin 23c Third pin 24 Arm side bracket 25 Frame side bracket 30 Weight device 31 Connecting member 32 Fixing means 40 Crusher device 50 Sorting device F Frame

Claims (3)

A first rotating roll (1) rotating about an axis;
A second rotating roll (2) arranged along the first rotating roll (1) and movable in a direction approaching and moving away from the first rotating roll (1);
A link mechanism (20) connecting the fixed frame (F) and the second rotating roll (2);
A weight device (30) attached to the link mechanism (20) for pressing the second rotary roll (2) toward the first rotary roll (1);
Bei to give a,
The weight device (30) is configured such that the second rotating roll gradually moves with the movement of the link mechanism (20) due to the second rotating roll (2) moving away from the first rotating roll (1). (2) is attached to a position where the force to press the first rotating roll (1) is reduced ,
The rotating shaft (2a) of the second rotating roll (2) is attached to a swingable arm (5), and the link mechanism (20) is connected to the frame (F) and the above via the arm (5). It is connected to the second rotating roll (2) ,
The arm (5) is provided at each axial end of the second rotating roll (2), and the link mechanism (20) is provided between the frame (F) and both the arms (5), A crusher device in which one link mechanism (20) and the other link mechanism (20) are connected by a connecting member (31). The crusher device according to claim 1 , wherein the weight device (30) is attached to the connecting member (31). The crusher device according to claim 1 or 2 , wherein the link mechanism (20) is a link mechanism having two or more nodes connecting the frame (F) and the arm (5).

Images