Metal crusher with bottom grid convenient to replace

Abstract

The utility model provides a metal crusher with a bottom grid convenient to replace. The metal crusher comprises a base, a cover body and a rotor assembly, the fixed end of the cover body is hinged to one end, in the length direction, of the base. The rotor assembly is erected in a working cavity formed by closing the base and the cover body, and at least the rotor assembly is detachably connected with the base; a bottom grid is arranged between the bottom of the base and the rotor assembly in the height direction of the base; in the length direction of the base, the bottom grid is provided with a first end facing the fixed end of the cover body and a second end deviating from the fixed end of the cover body; the second end of the bottom grid abuts against a first limiting part arranged in the base. After the cover body is relatively closed on the base, the top surface, facing the cover body, of the first end of the bottom grating in the height direction of the base abuts against the end surface, facing the base, of the cover body; when the cover body is relatively opened on the base, the top surface of the first end of the bottom grating is separated from the end surface, facing the base, of the cover body.

Description

Technical Field

[0001] The utility model belongs to the technical field of hammer crushers, in particular to a metal crusher which is convenient for replacing a bottom grid. Background Art

[0002] Large scrap metal crusher is a new type of high-efficiency metal crusher. Its working principle is that under the continuous drive of a high-speed, high-torque motor, the hammers on the crusher rotor take turns to hit the scrap metal entering the cavity. Under the strong impact, the scrap metal is torn and squeezed into broken metal of a certain specification. After being processed by sorting equipment, higher-purity broken steel / aluminum / copper and other metals can be obtained.

[0003] Since metal wear sometimes occurs during the operation of the metal crusher, parts that are worn to a certain extent will be replaced. For example, the bottom grille installed inside the crusher is supported by thick and heavy wear-resistant cast steel parts, and the weight of the single unit is also heavy, which undoubtedly increases the difficulty of replacement; secondly, the bottom grille in the prior art is usually installed in two slots, but due to the uncontrollable feeding of the metal crusher during operation, the metal scraps in the crushing process will accumulate in the gap between the slot and the bottom grille, and over time, the bottom grille will be stuck in the slot. The accumulated metal scraps must be cleaned out before the bottom grille can be replaced. At the same time, since the accumulated metal scraps are squeezed more solidly, it takes a long time;

[0004] In addition, although the crusher in the prior art also adopts a split design, when replacing the bottom grid, the cover above it still needs to be opened and the rotor assembly needs to be lifted, which still consumes a lot of manpower, material resources and time. Utility Model Content

[0005] In view of the problems existing in the above-mentioned prior art, the main purpose of the utility model is to provide a metal crusher with an easy-to-replace bottom grid, so as to solve one or more of the above-mentioned problems in the prior art.

[0006] The purpose of the utility model is achieved through the following technical solutions:

[0007] The utility model provides a metal crusher with a convenient bottom grille replacement, comprising a base, a cover and a rotor assembly; wherein:

[0008] The fixed end of the cover is hinged to one end of the base in the length direction; the rotor assembly is mounted in the working cavity formed by the base and the cover, and at least the rotor assembly is detachably connected to the base;

[0009] In the height direction of the base, a bottom grille is provided between the bottom of the base and the rotor assembly; in the length direction of the base, the bottom grille has a first end facing the fixed end of the cover body and a second end facing away from the fixed end of the cover body; the second end of the bottom grille abuts against a first limiting portion provided in the base;

[0010] When the cover body is relatively closed on the base, the first end of the bottom grille faces the top surface of the cover body in the height direction of the base and abuts against the end surface of the cover body facing the base; when the cover body is relatively opened on the base, the top surface of the first end of the bottom grille is separated from the end surface of the cover body facing the base.

[0011] As a further description of the above technical solution, the cross section of the bottom grid along the length direction of the base is an arc shape;

[0012] A circular arc bracket is provided on one side of the base facing the bottom grille to mount the bottom grille.

[0013] As a further description of the above technical solution, a limit block is provided at the end of the arc-shaped bracket away from the fixed end of the cover body along the length direction of the base, and the end surface of the limit block facing the bottom grille abuts against the end surface of the bottom grille facing the limit block.

[0014] As a further description of the above technical solution, the limit block is detachably connected to the base.

[0015] As a further description of the above technical solution, in the width direction of the base, the extension lengths of the limit block, the bottom grid and the arc-shaped bracket are equal.

[0016] As a further description of the above technical solution, the rotor main shaft included in the rotor assembly extends out of the working cavity and is rotatably connected to a bearing seat at both ends, and the bearing seat is detachably connected to the base.

[0017] As a further description of the above technical solution, the cover body includes two side cover parts arranged in parallel in the width direction of the base, and each of the side cover parts is detachably connected to the corresponding bearing seat it covers.

[0018] As a further description of the above technical solution, the side cover portion and the bearing seat are pin-connected by a connecting pin extending along the width direction of the base.

[0019] As a further description of the above technical solution, a handle piece is further provided on the outer side wall of the connecting pin, and the handle piece is located on the side of the side cover portion away from the working cavity in the width direction of the base.

[0020] By means of the above technical solution, the outstanding effects of the utility model are:

[0021] 1. The metal crusher for easy replacement of the bottom grille provided by the utility model adopts a split design, which has a simple and reasonable structure, and can easily and efficiently complete the replacement of the bottom grille, effectively shortening the equipment overhaul and maintenance time and improving the equipment overhaul and maintenance efficiency;

[0022] 2. The metal crusher with easy replacement of the bottom grille provided by the utility model comprises a rotor assembly, a base and a cover body which are all detachably connected, and the fixed end of the cover body is hinged to one end of the length direction of the base. Therefore, not only can the rotor assembly leave the base synchronously with the cover body to expose the bottom grille installed between it and the base, thus realizing efficient replacement of the bottom grille, but also the cover body can be opened relatively to the base to expose the inside of the cover body and the rotor assembly, thereby facilitating the inspection and maintenance of the inside of the cover body and the rotor assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the external structure of a metal crusher that is convenient for replacing the bottom grid in an embodiment of the utility model;

[0024] Figure 2 It is a schematic diagram of an external partial structure of a metal crusher that is convenient for replacing the bottom grid in an embodiment of the utility model;

[0025] Figure 3 It is a schematic diagram of a partial internal structure of a metal crusher that is convenient for replacing the bottom grid in an embodiment of the utility model;

[0026] Figure 4 This is a structural schematic diagram of the cover driving the rotor assembly to synchronously open upward relative to the base in the embodiment of the utility model;

[0027] Figure 5 This is a schematic diagram of the structure in which only the cover is opened upward relative to the base in the embodiment of the utility model;

[0028] Figure 6 A cross-sectional view of the base in the embodiment of the utility model;

[0029] Figure 7 This is a schematic diagram of the structure of the connection between the rotor assembly and the bearing seat in the embodiment of the utility model;

[0030] Figure 8 It is a schematic diagram of the structure of the connecting pin in the embodiment of the utility model.

[0031] Description of Figure Numbers:

[0032] 1. Base; 2. Cover body; 3. Rotor assembly; 4. Bottom grille; 5. First end; 6. Second end; 7. Arc-shaped bracket; 8. Limit block; 9. Rotor main shaft; 10. Bearing seat; 11. Side cover; 12. Connecting pin; 13. Handle piece; 14. First driving piece. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0034] In the description of the present utility model, it should be noted that the terms "upper", "middle", "lower", "inside", "outside", "front", "back", "left", "right" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or component referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. The following describes the implementation method of the present utility model based on its overall structure.

[0035] See also Figures 1 to 8 The utility model discloses a metal crusher which is convenient for replacing a bottom grid 4, comprising a base 1, a cover 2 and a rotor assembly 3; wherein,

[0036] The fixed end of the cover body 2 is hinged to one end of the base 1 in the length direction; the rotor assembly 3 is mounted in the working cavity formed by the base 1 and the cover body 2, and at least the rotor assembly 3 is detachably connected to the base 1;

[0037] In the height direction of the base 1, a bottom grille 4 is provided between the bottom of the base 1 and the rotor assembly 3; in the length direction of the base 1, the bottom grille 4 has a first end 5 facing the fixed end of the cover body 2, and a second end 6 away from the fixed end of the cover body 2; the second end 6 of the bottom grille 4 abuts against a first limit portion provided in the base 1;

[0038] When the cover body 2 is relatively closed on the base 1, the first end 5 of the bottom grille 4 faces the top surface of the cover body 2 in the height direction of the base 1 and abuts against the end surface of the cover body 2 facing the base 1; when the cover body 2 is relatively opened on the base 1, the top surface of the first end 5 of the bottom grille 4 is separated from the end surface of the cover body 2 facing the base 1.

[0039] With the above structure, the metal crusher adopts a split structure, and the cover body 2 included therein can be opened or closed relative to the base 1 by hinged connection between its fixed end and the base 1, and the rotor assembly 3 is set in the working chamber formed by the base 1 and the cover body 2, so as to perform the crushing operation of the metal material when the cover body 2 is closed relative to the base 1. At this time, when the cover body 2 is relatively closed on the base 1, the first end 5 of the bottom grille 4 provided between the bottom of the base 1 and the rotor assembly 3 in the height direction of the base 1 abuts against the end face of the cover body 2 facing the base 1, and the second end 6 thereof abuts against the first limiting portion provided in the base 1 and is stably limited to play the role of screening materials and protecting the base 1. When the cover body 2 is relatively opened on the base 1, the end surface of the cover body 2 facing the base 1 will be separated from the top surface of the first end 5 of the bottom grille 4, thereby releasing the limiting effect on the first end 5 of the bottom grille 4, so that the old bottom grille 4 can be pulled out from the side of its first end 5 by using a lifting tool; and then the new bottom grille 4 can be inserted in the opposite direction (that is, the second end 6 of the new bottom grille 4 gradually slides in from the installation position of the first end 5 until it abuts against the first limiting portion provided in the base 1).

[0040] Since at least the rotor assembly 3 is detachably connected to the base 1, that is, no matter whether the rotor assembly 3 is detachably connected to the cover 2, before the cover 2 is relatively opened to the base 1, only the connection between the rotor assembly 3 and the base 1 can be cancelled, so that when the cover 2 is opened relative to the base 1 by rotating with its fixed end as the center, the rotor assembly 3 will also be synchronously taken away from the original erection position to expose the bottom grille 4, so that the bottom grille 4 with one end limit removed can be removed from the base 1, and the new bottom grille 4 can be easily installed, so that after the cover 2 is closed in place again, the new bottom grille 4 can be stably limited by cooperating with the first limit part provided in the base 1. As a result, the replacement operation of the bottom grille 4 of the metal crusher is more convenient and efficient, which effectively shortens the equipment overhaul and maintenance time and improves the equipment overhaul and maintenance efficiency.

[0041] See also Figure 3 , Figure 4 as well as Figure 6Specifically, in this embodiment, the cross section of the bottom grille 4 along the left-right direction is arc-shaped, and the upper inner wall of the base 1 is provided with an arc-shaped bracket 7 to fit the bottom grille 4, so that when the bottom grille 4 is disassembled and replaced by a lifting tool, the bottom grille 4 can be directly pulled and pushed along the arc-shaped bracket 7, which is equivalent to making the bottom grille 4 gradually slide out or slide into the base 1. This makes the disassembly and replacement of the bottom grille 4 more convenient while reducing the impact on adjacent components (that is, the disassembly of surrounding components can be reduced as much as possible).

[0042] Specifically, in the present embodiment, a long wedge-shaped limit block 8 is provided at the end of the arc-shaped bracket 7 away from the fixed end of the cover body 2 in the left-right direction. More specifically, the inner wall of the base 1 at the end of the arc-shaped bracket 7 away from the fixed end of the cover body 2 in the left-right direction is in the shape of a long step extending in the front-to-back direction to install the limit block 8. After the limit block 8 is installed on the step-shaped inner wall of the base 1, it partially protrudes to the upper side of the second end 6 of the arc-shaped bracket 7, so that after the bottom grille 4 is installed in place, the end surface of the limit block 8 facing the bottom grille 4 abuts against the end surface of the bottom grille 4 facing the limit block 8 to play a limiting role.

[0043] Specifically, in this embodiment, the limit block 8 is detachably connected to the base 1 by 6 wedge bolts, and the purpose of using the wedge bolts is to make them fit the shape of the long wedge-shaped limit block 8. Of course, in other embodiments, the number of wedge bolts can be set according to actual needs.

[0044] Specifically, in the present embodiment, in the front-rear direction, the extension lengths of the limit block 8, the bottom grille 4 and the arc-shaped bracket are equal, so that the bottom grille 4 can be stably limited after being assembled in place, so as to avoid the situation in which the metal crusher moves in position during operation and a gap is formed between the base 1 into which the crushed materials can be stuck.

[0045] See also Figures 1 to 7 Specifically, in this embodiment, the rotor assembly 3 is mounted on the base 1 along the front-to-back direction and is located under the cover 2. The rotor main shaft 9 included therein extends out of the working chamber along the front-to-back direction and is rotatably connected to a bearing seat 10 at both ends. The bearing seat 10 is detachably connected to the base 1, so that when the bottom grille 4 needs to be inspected and replaced, the rotor main shaft 9 can be removed from the bottom grille 4, making the inspection and replacement of the bottom grille 4 more convenient. For example, in this embodiment, each of the bearing seats 10 is connected to the base 1 through 4 sets of fastening components, and each set of the fastening components includes bolts and hydraulic nuts. The hydraulic nuts can be flexibly pressurized and locked and released by hydraulic pressure, making it convenient to connect and disconnect the rotor assembly 3 and the base 1.

[0046] Specifically, in this embodiment, the cover body 2 includes two side cover parts 11 arranged in parallel in the front-back direction, and each side cover part 11 is detachably connected to the corresponding bearing seat 10 covered therewith. Therefore, when it is necessary to inspect and replace the bottom grille 4, the connection between the cover body 2 and the rotor assembly 3 is maintained, so that in the process of the cover body 2 rotating around its fixed end to open relative to the base 1, the rotor assembly 3 can synchronously rotate away from the base 1 to expose the bottom grille 4; and when it is necessary to inspect the rotor assembly 3 and the internal parts of the cover body 2, the connection between the cover body 2 and the rotor assembly 3 is first canceled, so that only the cover body 2 is opened relative to the base 1 by rotating around its fixed end.

[0047] Specifically, in this embodiment, the driving source for driving the cover body 2 to perform a rotational motion with its fixed end as the center is a first driving member 14, such as a hydraulic cylinder, the lower end of which is fixedly connected to the base 1, and the upper end of its piston rod is connected to the side cover portion 11 included in the cover body 2. In order to make the cover body 2 evenly stressed, the first driving members 14 are two symmetrically arranged in the front and rear directions of the metal crusher, and the telescopic direction of the piston rod included in each driving member has a certain inclination angle, so as to drive the cover body 2 to perform a rotational motion with the adapter bracket as the center.

[0048] See also Figure 1 , Figure 2 , Figure 4 , Figure 5 as well as Figures 7 and 8 Specifically, in this embodiment, each of the side cover portions 11 is pin-connected to the bearing seat 10 via two connecting pins 12 extending along the front-to-back direction. The connecting pins 12 can be directly plugged in and out along the front-to-back direction to achieve connection or disconnection between the side cover portion 11 and the bearing seat 10.

[0049] Specifically, in this embodiment, in order to facilitate the insertion and removal of the connecting pin 12, a handle piece 13 is also provided on the outer wall of each connecting pin 12. The handle piece 13 is located on the side of the side cover portion 11 away from the working cavity in the front-to-back direction, that is, the handle piece 13 is located on the outside of the side cover portion 11. The shape of the handle piece 13 includes but is not limited to circular, elliptical, semicircular, etc.

[0050] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not limited to the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any changes, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A metal crusher with easy replacement of bottom grid, characterized in that: It includes a base, a cover and a rotor assembly; wherein, The fixed end of the cover is hinged to one end of the base in the length direction; the rotor assembly is mounted in the working cavity formed by the base and the cover, and at least the rotor assembly is detachably connected to the base; In the height direction of the base, a bottom grille is provided between the bottom of the base and the rotor assembly; in the length direction of the base, the bottom grille has a first end facing the fixed end of the cover body and a second end facing away from the fixed end of the cover body; the second end of the bottom grille abuts against a first limiting portion provided in the base; When the cover body is relatively closed on the base, the first end of the bottom grille faces the top surface of the cover body in the height direction of the base and abuts against the end surface of the cover body facing the base; when the cover body is relatively opened on the base, the top surface of the first end of the bottom grille is separated from the end surface of the cover body facing the base.

2. The metal crusher with easy replacement of bottom grid according to claim 1, characterized in that: The cross section of the bottom grid along the length direction of the base is in an arc shape; A circular arc bracket is provided on one side of the base facing the bottom grille to mount the bottom grille.

3. The metal crusher with easy replacement of bottom grid according to claim 2, characterized in that: A stop block is provided at the end of the arc-shaped bracket away from the fixed end of the cover body along the length direction of the base, and the end surface of the stop block facing the bottom grille abuts against the end surface of the bottom grille facing the stop block.

4. The metal crusher with easy replacement of bottom grid according to claim 3, characterized in that: The limiting block is detachably connected to the base.

5. The metal crusher with easy replacement of bottom grid according to claim 4, characterized in that: In the width direction of the base, the extension lengths of the limit block, the bottom grid and the arc-shaped bracket are equal.

6. The metal crusher with easy replacement of bottom grid according to claim 1, characterized in that: The rotor main shaft included in the rotor assembly extends out of the working cavity and is rotatably connected to a bearing seat at both ends thereof. The bearing seat is detachably connected to the base.

7. The metal crusher with easy replacement of bottom grid according to claim 6, characterized in that: The cover body comprises two side cover parts which are arranged in parallel in the width direction of the base, and each of the side cover parts is detachably connected to the corresponding bearing seat covered by it.

8. The metal crusher with easy replacement of bottom grid according to claim 7, characterized in that: The side cover portion and the bearing seat are pin-connected via a connecting pin extending along the width direction of the base.

9. The metal crusher with easy replacement of bottom grid according to claim 8, characterized in that: A handle is also provided on the outer side wall of the connecting pin, and the handle is located at a side of the side cover part away from the working cavity in the width direction of the base.

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