Ore crushing security device and ore crusher with security device

Abstract

The utility model provides an ore crushing security and protection device and an ore crusher with the security and protection device, the ore crushing security and protection device can be mounted on the ore crusher consisting of a crushing box, a grinding roller and a driving motor, and is used for preventing crushed ore from splashing from a feed port of the ore crusher to hurt people and preventing dust from dispersing. The box cover is arranged on the upper portion of a feeding port of the ore crusher in a surrounding and sleeving mode and supported by supporting legs, one side of each cover plate is movably connected to the inner side wall of the box cover through a connecting assembly, and an opening in the upper portion of the box cover can be closed and covered. The cover plate can be opened towards the feeding hole of the ore crusher under the heavy pressure of the ore, so that the ore falls into the feeding hole to be normally crushed; the ore crusher with the security and protection device, which is manufactured on the basis of the ore crushing security and protection device, also has the effects of avoiding personnel injury and reducing environmental influence, and has the characteristics of simple structure, convenience in manufacturing and use, easiness in maintenance and obvious and reliable effect.

Description

Technical Field

[0001] The utility model relates to a security device, in particular to an ore crushing security device and an ore crusher with the security device, belonging to the technical field of production and manufacturing of ore crushers and their safety protection devices. Background Art

[0002] Ore crushing is a routine operation before ore utilization or analysis. Ore crushers are usually used to crush ore. There are many types of ore crushers. The most common and basic ore crusher includes a frame crushing box with a screen at the bottom, rolling rollers and a drive motor. The upper opening of the crushing box constitutes the feed port of the ore crusher, and the lower opening of the crushing box constitutes the discharge port of the ore crusher. At least one group of two rolling rollers are arranged side by side inside the crushing box. The drive motor is installed outside the crushing box and is connected to at least one group of rolling rollers through a coupling to rotate in opposite directions, so that large pieces of ore entering the feed port of the crushing box are crushed and crushed.

[0003] The improved ore crusher, such as the utility model patent "A Ore Crusher" with application number 201920646477.5, has a technical solution including a main machine, the upper surface of which is provided with a feed port, and a roller crushing device is installed at intervals on the inner side. The roller crushing device is composed of a drive motor, a main shaft, a crushing impeller and a gear ring. An extrusion crushing device is provided at the bottom of the roller crushing device. The extrusion crushing device is arranged around the surface of the main machine and is composed of a hydraulic cylinder, an extrusion plate and conical crushing teeth. The traditional flat roller surface structure is replaced by a sharp gear ring. The extrusion force on the ore when the gear ring rotates is more concentrated, which can quickly crush hard ore, improve the ore crushing efficiency, and better protect the crushing impeller. The gravity of the ore when it falls is converted into impact force on the ore itself, making the ore easier to decompose and the cracking efficiency higher.

[0004] It can be seen that the ore crushers in the above-mentioned prior art are usually not equipped with safety protection devices on the upper part of their feed ports. When the ore enters these crushers, the ore is crushed by the high-speed rotating crushing rollers. The crushed ore will not only fall and be discharged from the discharge port of the ore crusher, but part of it will also splash out from the feed port of the crusher at high speed, which is not only very likely to cause harm to the operators or patrol personnel, but also cause a large amount of dust to fly, affecting the surrounding environment. Utility Model Content

[0005] In order to overcome the deficiencies of the prior art, the utility model specially provides an ore crushing security device and an ore crusher with the security device, so as to improve its safety protection capability, avoid harm to personnel and the environment, and eliminate safety hazards in the ore crushing process.

[0006] To achieve the above-mentioned purpose, the present invention first provides an ore crushing safety device, which includes the following technical solutions:

[0007] An ore crushing safety device is used to prevent the crushed ore from splashing out of the feed port of the ore crusher during ore crushing to injure people and disperse dust;

[0008] The ore crusher includes a frame-type crushing box with a screen at the bottom, a crushing roller, and a drive motor, wherein the upper opening and the lower opening of the crushing box respectively constitute the feed port and the discharge port of the ore crusher, at least one group of two crushing rollers are arranged side by side inside the crushing box, and the drive motor is installed outside the crushing box and connects the two crushing rollers in at least one group through a coupling to rotate in opposite directions, so that the ore entering the feed port of the crushing box is crushed;

[0009] The ore crushing safety device includes a box cover, support legs and a cover plate;

[0010] The box cover is enclosed and sleeved on the upper part of the feed port of the crushing box, and the supporting feet are installed at the lower part of the box cover to support the box cover. One side of each of the two cover plates is movably connected to the inner wall of the box cover through a connecting component and can be combined to seal the upper opening of the box cover through the connecting component. Moreover, the two cover plates can each open from their combined position toward the feed port of the ore crusher under the weight of the ore to allow the ore to fall into the feed port.

[0011] Optional:

[0012] The connecting assembly includes a shaft seat, a shaft sleeve, a lifting shaft, a rotating connector, a support spring and a rotating support seat, wherein the shaft seats are respectively arranged at both ends of the surface of the cover plate, the shaft sleeve is sleeved on the lifting shaft, and the two ends of the lifting shaft are respectively inserted into the two shaft seats, the rotating connector is installed on the inner side wall of the box cover and is connected to the shaft sleeve through the support spring, and at least one rotating support seat is arranged on the inner side wall of the box cover and is located at the bottom of the cover plate for supporting the cover plate;

[0013] When the ore falls on the side of any one of the cover plates close to the other cover plate, the side of any one of the cover plates tilts downward under the weight of the ore to allow the ore to fall into the feed port of the ore crusher. After the ore falls into the feed port of the ore crusher, the tilted cover plate returns to its original flat state under the action of the rebound force of the support spring, thereby sealing the upper opening of the box cover.

[0014] Optional:

[0015] The rotating connector includes a fixed member, a rotating member and a rotating shaft, wherein the two fixed members are used to be fixedly mounted on the inner side wall of the box cover, and the rotating member is movably arranged between the two fixed members through the rotating shafts on both sides thereof, and the rotating member is also provided with a fixing hole for fixing the support spring;

[0016] The rotating support seat includes a U-shaped fixed seat and a rotating block connected to the notch of the fixed seat through a through shaft. The fixed seat is used to be fixed on the inner wall of the box cover, and the rotating block is used to be connected to the bottom surface of the cover plate.

[0017] Furthermore, the ore crushing safety device also includes a guide guard plate, the cross-section of which is a right-angled triangle, the right-angled surface of one side of the guide guard plate being a right-angled triangle being connected to the inner wall of the box cover, and the right-angled bottom surface of the guide guard plate being a right-angled triangle being located above the cover plate and shielding the connecting component from the vertical direction.

[0018] Furthermore, the ore crushing safety device also includes a guide slide, two of the guide slides are respectively placed on the inner wall of the box cover below the cover plate, and the lower edges of the two guide slides are obliquely connected to the upper edge of the crushing box of the ore crusher.

[0019] Furthermore, the ore crushing safety device also includes a shock-absorbing guide plate, which is an obliquely folded component. The two shock-absorbing guide plates are each movably connected to the connection between the inner side wall of the box cover and the guide slide through a plug-in hinge set at the oblique fold, and are elastically connected to the inner side wall of the box cover through a side wall spring and elastically connected to the guide slide through a guard plate spring.

[0020] Furthermore, the present invention also provides a ore crusher with a security device, the technical solution of which is as follows:

[0021] An ore crusher with a security device comprises an ore crusher and any one of the above-mentioned ore crushing security devices, wherein:

[0022] The ore crusher includes a frame-type crushing box with a screen at the bottom, a crushing roller and a drive motor. The upper opening of the crushing box constitutes the feed port of the ore crusher, and the lower opening of the crushing box constitutes the discharge port of the ore crusher. At least one group of two crushing rollers are arranged side by side inside the crushing box. The drive motor is installed outside the crushing box and connects the two crushing rollers in at least one group through a coupling to rotate in opposite directions to achieve crushing of the ore.

[0023] The ore crushing safety device is installed on the outside of the ore crusher through its supporting feet, and the box cover and cover plate of the ore crushing safety device are respectively located outside and above the crushing box of the ore crusher.

[0024] Further:

[0025] The ore crusher is suspended below the inner side of the support foot of the ore crushing safety device through an elastic connection between the outer wall of the crushing box and the support foot of the ore crushing safety device;

[0026] The ore crusher is further provided with a crushing ore bucket below the crushing box. The crushing ore bucket is an open rectangular box or an open trapezoidal box whose opening is not smaller than the lower opening of the crushing box.

[0027] Furthermore, a universal wheel is provided at the bottom of the crushed ore bucket, and the crushed ore bucket can move in and out below the discharge port of the ore crusher through the rotation of several universal wheels.

[0028] Furthermore, a handle for pushing and pulling the crushed ore bucket is provided on the outer side wall of the crushed ore bucket.

[0029] Compared with the prior art, the beneficial effects and improvements of the present invention are:

[0030] The ore crushing safety device provided by the utility model can be installed on a conventional ore crusher composed of a frame-type crushing box with a screen at the bottom, a rolling roller and a driving motor, and is used to prevent the crushed ore from splashing from the feed port of the ore crusher to injure people and disperse dust during ore crushing. The device comprises a box cover, supporting legs and a cover plate, wherein the box cover is enclosed and sleeved on the upper part of the feed port of the ore crusher, the supporting legs are installed at the lower part of the box cover to support the box cover, and one side of each of the two cover plates is movably connected to the inner side wall of the box cover through a connecting assembly and can be combined to seal the upper opening of the box cover, and can be opened toward the feed port of the ore crusher under the heavy pressure of the ore to allow the ore to fall into the feed port for normal crushing;

[0031] The ore crushing safety device specially provided by the utility model can effectively prevent the crushed ore from flying out of the feed port of the ore crusher and injuring people during ore crushing, and can also effectively block the dust from diffusing outward from the feed port of the ore crusher during ore crushing. While avoiding personal injury, it can also reduce the adverse impact on the environment and eliminate the safety hazards in the ore crushing process. The device has a simple structure, is easy to manufacture and use, easy to maintain, and has obvious and reliable effects. Compared with the existing technology, it has substantial progress and positive social significance, so it has great promotion and application value.

[0032] The ore crusher with a security device made on the basis of the above-mentioned ore crushing security device can effectively reduce the adverse impact on the environment while avoiding personal injury, eliminating the safety hazards in the ore crushing process, and has a simple structure, easy to manufacture and use, easy to maintain, obvious and reliable effect. Compared with the existing technology, it has substantial progress and positive social significance, so it is also of great value for promotion and application. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the technical solution of the present invention, a brief introduction to the drawings required for the embodiments of the present invention is given below.

[0034] Obviously:

[0035] The drawings described below are only some of the embodiment drawings of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work, but these other drawings also belong to the drawings required for use in the embodiments of the present invention.

[0036] Figure 1 A schematic diagram of the three-dimensional structure of an ore crushing safety device installed on an ore crusher provided in an embodiment of the utility model;

[0037] Figure 2 A schematic diagram of the three-dimensional structure of an ore crushing safety device provided by an embodiment of the present invention, which has been installed on an ore crusher and has its cover plate on one side cut off;

[0038] Figure 3 A schematic diagram of the three-dimensional structure of an ore crushing safety device provided by an embodiment of the present invention, which has been installed on an ore crusher and has its box cover portion and box frame plate cut off;

[0039] Figure 4 for Figure 3 A schematic diagram of the enlarged structure of the middle part A;

[0040] Figure 5 A schematic diagram of the three-dimensional structure of a rotary connector of an ore crushing safety device provided by an embodiment of the present utility model;

[0041] Figure 6 A schematic diagram of the three-dimensional structure of a rotating support seat of an ore crushing safety device provided by an embodiment of the utility model;

[0042] Figure 7 A schematic diagram of the three-dimensional structure of a mineral crusher with a security device provided in an embodiment of the present utility model.

[0043] In the picture:

[0044] 100-ore crusher, 110-crushing box, 120-roller, 130-drive motor;

[0045] 200- ore crushing safety device, 210- box cover, 220- support foot, 230- cover plate, 241- shaft seat, 242- shaft sleeve, 243- lifting shaft, 244- rotating connector, 244a- fixed component, 244b- rotating component, 244c- rotating shaft, 244d- fixing hole, 245- supporting spring, 246- rotating support seat, 246a- fixed seat, 246b- through shaft, 246c- rotating block, 250- guide guard plate, 260- guide slide plate, 270- shock-absorbing guide plate, 271- plug-in hinge, 272- side wall spring, 273- guard plate spring;

[0046] 300-crushed ore bucket, 310-universal wheel, 320-handle. DETAILED DESCRIPTION

[0047] In order to make the purpose, technical solutions, beneficial effects and significant progress of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in combination with the drawings provided for the embodiments of the present invention. Obviously, all the described embodiments are only partial embodiments of the present invention, rather than all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0048] It should be noted that:

[0049] The term "comprise" and any variations thereof in the description and claims of the present utility model are intended to cover non-exclusive inclusions, for example, not only including a series of listed technical features and structural components, but also optionally including unlisted technical features and structural components, or optionally including the connection relationship between these technical features and structural components.

[0050] What needs to be understood is:

[0051] In the description of the embodiments of the present invention, terms such as "upper", "lower", "inside", "outside" and other indicative directions or positions are only based on the directions or positional relationships shown in the drawings of the embodiments of the present invention. They are for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the device or element must have a specific direction, specific direction structure and operation. Therefore, they cannot be understood as limiting the present invention.

[0052] In the present invention, unless otherwise clearly stipulated and limited, the terms "setting", "having" and the like should be understood in a broad sense. For example, it can be a fixed setting, a detachable movable setting, or a fixed connection relationship that becomes one. The connection can be a direct connection, an indirect connection through an intermediate medium, or the internal connection between two structural elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meaning of the above terms in the present invention according to the specific circumstances.

[0053] It should also be noted that the following specific embodiments may be combined with each other, and the same or similar concepts or processes therein may not be repeated in some embodiments.

[0054] The technical solution of the present utility model is described in detail below with reference to specific embodiments.

[0055] Example 1

[0056] This embodiment provides an ore crushing safety device for preventing crushed ore from splashing out of the feed port of an ore crusher to injure people and disperse dust during ore crushing.

[0057] like Figure 1 A schematic diagram of the three-dimensional structure of an ore crushing safety device installed on an ore crusher provided by an embodiment of the utility model, Figure 2 A schematic diagram of the three-dimensional structure of an ore crushing safety device provided by an embodiment of the present invention, which has been installed on an ore crusher and has its one side box cover cut off, Figure 3 A schematic diagram of the three-dimensional structure of an ore crushing safety device provided by an embodiment of the present invention, which has been installed on an ore crusher and has its box cover part and box frame plate cut off, Figure 4 for Figure 3 The enlarged structural diagram of part A is shown in the figure:

[0058] An ore crushing safety device is used to prevent the crushed ore from splashing out of the feed port of the ore crusher to injure people and disperse dust during ore crushing, wherein:

[0059] The ore crusher 100 includes a frame-type crushing box 110 with a screen at the bottom, a crushing roller 120, and a drive motor 130. The upper opening of the crushing box 110 constitutes the feed port of the ore crusher 100, and the lower opening of the crushing box 110 constitutes the discharge port of the ore crusher 100. At least one group of two crushing rollers 120 are arranged side by side inside the crushing box 110. The drive motor 130 is installed outside the crushing box 110 and connects the two crushing rollers 120 in at least one group via a coupling so that they rotate in opposite directions, so that the ore (not shown in the figure) entering the feed port of the crushing box 110 is crushed.

[0060] The ore crushing safety device 200 includes a box cover 210, support legs 220 and a cover plate 230;

[0061] The box cover 210 is enclosed and sleeved on the upper part of the feed port of the crushing box 110, and the support legs 220 are installed on the lower part of the box cover 210 to support the box cover 210. One side of each of the two cover plates 230 is movably connected to the inner wall of the box cover 210 through a connecting assembly and can be combined to seal the upper opening of the box cover 210 through the connecting assembly. Moreover, the two cover plates 230 can each open from their combined position toward the feed port of the ore crusher 100 under the weight of the ore (not shown in the figure) to allow the ore (not shown in the figure) to fall into the feed port.

[0062] From the above description we can see that:

[0063] The ore crushing safety device provided in this embodiment can be installed on a conventional ore crusher composed of a frame crushing box with a screen at the bottom, a rolling roller and a drive motor. Since it includes a box cover and a cover plate, it can effectively prevent the crushed ore from flying out of the feed port of the ore crusher and injuring people during ore crushing. It can also effectively shield the dust from diffusing outward from the feed port of the ore crusher during ore crushing. While avoiding personal injury, it can reduce the adverse impact on the environment and eliminate safety hazards in the ore crushing process. The device has a simple structure, is easy to manufacture and use, easy to maintain, and has obvious and reliable effects. Compared with the existing technology, it has substantial progress and positive social significance, so it is of great value for promotion and application.

[0064] Optionally, in this embodiment, if Figure 3 and Figure 4 As shown:

[0065] The connecting assembly includes a shaft seat 241, a shaft sleeve 242, a lifting shaft 243, a rotating connector 244, a support spring 245 and a rotating support seat 246;

[0066] Two shaft seats 241 are respectively provided at both ends of the surface of the cover plate 230. A shaft sleeve 242 is sleeved on the lifting shaft 243, and the lifting shaft 243 is inserted into the two shaft seats 241 at both ends. A rotary connector 244 is installed on the inner side wall of the box cover 210 and is connected to the shaft sleeve 242 via a support spring 245. At least one rotary support seat 246 is provided on the inner side wall of the box cover 210 and is located at the bottom of the cover plate 230 for supporting the cover plate 230.

[0067] When ore (not shown in the figure) falls on the side of any cover plate 230 close to the other cover plate 230, the side of any cover plate 230 tilts downward under the weight of the ore (not shown in the figure) to allow the ore (not shown in the figure) to fall into the feed port of the ore crusher 100, and after the ore (not shown in the figure) falls into the feed port of the ore crusher 100, the inclined cover plate 230 returns to its original flat state under the action of the rebound force of the support spring 245, thereby sealing the upper opening of the box cover 210.

[0068] Optional, such as Figure 5 The three-dimensional structural diagram of the rotary connector of an ore crushing security device provided by the embodiment of the present utility model is shown as follows:

[0069] The rotating connector 244 includes a fixed component 244a, a rotating component 244b and a rotating shaft 244c. The two fixed components 244a are used to be fixedly installed on the inner wall of the box cover 210. The rotating component 244b is movably placed between the two fixed components 244a through the rotating shafts 244c on both sides thereof, and a fixing hole 244d for fixing the support spring 245 is also provided on the rotating component 244b.

[0070] Optional, such as Figure 6 The three-dimensional structural diagram of the rotating support seat of an ore crushing safety device provided by the embodiment of the utility model is shown as follows:

[0071] The rotating support seat 246 includes a U-shaped fixed seat 246a and a rotating block 246c connected to the notch of the fixed seat 246a through a through shaft 246b. The fixed seat 246a is used to be fixed on the inner wall of the box cover 210, and the rotating block 246c is used to be connected to the bottom surface of the cover plate 230.

[0072] Further, such as Figure 2 As shown, the ore crushing safety device provided in this embodiment also includes:

[0073] deflector guard 250;

[0074] The cross section of the deflector plate 250 is a right triangle. The right-angled surface of one side of the right-angled triangle deflector plate 250 is connected to the inner wall of the box cover 210. The right-angled bottom surface of the right-angled triangle deflector plate 250 is located above the cover plate 230 and blocks the connecting component from the vertical direction.

[0075] It can be seen that:

[0076] The ore crushing safety device with an added guide guard plate can not only better guide the ore to be crushed into the feed port of the ore crusher, but also effectively protect the connecting components of the connecting cover plate from impact damage when the ore is poured in, and maintain the normal opening and closing of the cover plate.

[0077] Further, such as Figure 2 and Figure 3 As shown, the ore crushing safety device provided in this embodiment also includes:

[0078] Guide slide 260;

[0079] The two guide slides 260 are respectively placed on the inner side walls of the box cover 210 below the cover plate 230, and the lower edges of the two guide slides 260 are obliquely connected to the upper edges of the crushing box 110 of the ore crusher 100.

[0080] Obviously, the ore crushing safety device with the addition of a guide slide can better guide the ore to be crushed into the ore crusher, effectively preventing the ore from flowing out from the bottom of the box cover and the crushing box, thereby ensuring the laying of the ore.

[0081] Further, such as Figure 2 and Figure 3 As shown, the ore crushing safety device provided in this embodiment also includes:

[0082] Shock-absorbing deflector 270;

[0083] The shock-absorbing deflector 270 is an obliquely bent component. The two shock-absorbing deflector plates 270 are movably connected to the connection between the inner wall of the box cover 210 and the deflector slide 260 through a plug-in hinge 271 set at the oblique bend, and are elastically connected to the inner wall of the box cover 210 through a side wall spring 272 and elastically connected to the deflector slide 260 through a guard plate spring 273.

[0084] It can be seen that:

[0085] The ore crushing safety device equipped with a shock-absorbing guide plate can not only better guide the ore to be crushed into the ore crusher, but also effectively avoid the impact of the ore on the box cover and the guide slide, effectively protect the box cover and the guide slide, and reduce the noise of the ore crusher during operation, thereby improving the working environment.

[0086] Example 2

[0087] This embodiment provides a ore crusher with a security device.

[0088] like Figure 7 The three-dimensional structural diagram of an ore crusher with a security device provided by an embodiment of the present utility model is shown as follows:

[0089] An ore crusher with a security device includes an ore crusher 100 and the above-mentioned ore crushing security device 200, wherein:

[0090] Ore Crusher 100 Figure 2and Figure 3 As shown, it includes a frame-type crushing box 110 with a screen at the bottom, a crushing roller 120 and a drive motor 130. The upper opening of the crushing box 110 constitutes the feed port of the ore crusher 100, and the lower opening of the crushing box 110 constitutes the discharge port of the ore crusher 100. At least one group of two crushing rollers 120 are arranged side by side inside the crushing box 110. The drive motor 130 is installed outside the crushing box 110 and is connected to the two crushing rollers in at least one group by a coupling so as to rotate in opposite directions to achieve crushing of the ore.

[0091] The ore crushing safety device 200 is installed outside the ore crusher 100 through its support legs 220 , and the box cover 210 and the cover plate 230 of the ore crushing safety device 200 are respectively located outside and above the crushing box 110 of the ore crusher 100 .

[0092] From the above description, we can see that:

[0093] The ore crusher with a security device provided in this embodiment is a new type of ore crusher that combines the security device provided in Example 1, which has the function of preventing crushed ore from splashing out of the feed port of the ore crusher to injure people and disperse dust during ore crushing, with an ore crushing main unit consisting of a frame crushing box with a screen at the bottom, a rolling roller and a drive motor. While effectively avoiding personal injury, it can reduce the adverse impact on the environment and eliminate safety hazards in the ore crushing process. It has a simple structure, is easy to manufacture and use, easy to maintain, and has obvious and reliable effects. Compared with the existing technology, it has substantial progress and positive social significance, so it is also very valuable for promotion and application.

[0094] Further, such as Figure 7 As shown:

[0095] The ore crusher 100 is suspended below the inner side of the support leg 220 of the ore crushing safety device 200 through an elastic connection (not shown) between the outer wall of the crushing box 110 and the support leg 220 of the ore crushing safety device 200;

[0096] The ore crusher 100 is further provided with a crushing ore bucket 300 below the crushing box 110 . The crushing ore bucket 300 is an open rectangular box or an open trapezoidal box whose opening is not smaller than the lower opening of the crushing box 110 .

[0097] Obviously, after the crushing ore bucket is set, when the ore crusher with a safety device provided in this embodiment is used to crush the ore, the collection and removal of the crushed ore will be more convenient and the impact on the environment will be smaller.

[0098] Further, from Figure 7 You can also see:

[0099] A universal wheel 310 may be provided at the bottom of the crushing ore bucket 300, and the crushing ore bucket 300 may be moved in and out below the discharge port of the ore crusher 100 by rotating the plurality of universal wheels 310;

[0100] A handle 320 for pushing and pulling the crushed ore bucket 300 may also be provided on the outer side wall of the crushed ore bucket 300 .

[0101] Obviously, a crushed ore bucket provided with universal wheels or further provided with a handle can be moved more conveniently, thereby facilitating the removal of the crushed ore.

[0102] In summary, we can see that:

[0103] The utility model constructs an ore crushing safety device by enclosing a box cover which is sleeved on the upper part of the feed port of the ore crusher and supported by supporting legs, and two cover plates whose one side is movably connected to the inner side wall of the box cover by a connecting assembly and can be combined to cover the upper opening of the box cover. While ensuring the normal crushing of the ore, it can effectively prevent the crushed ore from flying out of the feed port of the ore crusher and injuring people during the ore crushing, and can also effectively shield the dust from diffusing outwards from the feed port of the ore crusher during the ore crushing, thereby avoiding personal injury, reducing adverse effects on the environment, and eliminating safety hazards in the ore crushing process.

[0104] The ore crusher with a security device manufactured on the basis of the above-mentioned ore crushing security device also has the effect of avoiding personal injury and effectively reducing adverse effects on the environment, eliminating safety hazards in the ore crushing process;

[0105] Moreover, the ore crushing security device and the ore crusher with the security device provided by the present invention have the characteristics of simple structure, easy manufacture and use, easy maintenance, obvious effect and reliability. Therefore, compared with the existing technology, they have substantial progress and positive social significance, and are of great value for promotion and application.

[0106] In the description of the above specification, the terms "this embodiment", "an embodiment of the present utility model", "as shown in", "further", etc., mean that the specific features, structures, materials or characteristics described in the embodiment are included in at least one embodiment of the present utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment, and the specific features, structures, materials or characteristics described can be combined or combined in any appropriate manner in any one or more embodiments;

[0107] In addition, under the premise that no contradiction occurs, a person skilled in the art may combine or combine the different embodiments and features of the different embodiments described in this specification.

[0108] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some or all of the technical features therein, and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions described in the embodiments of the present invention. Non-essential improvements, adjustments or replacements made by those skilled in the art based on the contents recorded in this specification are all within the scope of protection required by the present invention.

Claims

1. An ore crushing safety device is used to prevent the crushed ore from splashing from the feed port of the ore crusher and injuring people and dispersing dust during ore crushing. The ore crusher includes a frame-type crushing box with a screen at the bottom, a crushing roller and a drive motor, wherein: The upper opening and the lower opening of the crushing box respectively constitute the feed port and the discharge port of the ore crusher. At least one group of two rolling rollers are arranged side by side inside the crushing box. The drive motor is installed outside the crushing box and is connected to the two rolling rollers in at least one group through a coupling so as to rotate in opposite directions, so that the ore entering the feed port of the crushing box is crushed and crushed. The invention is characterized in that: The ore crushing safety device includes a box cover, support legs and a cover plate; The box cover is enclosed and sleeved on the upper part of the feed port of the crushing box, and the supporting feet are installed at the lower part of the box cover to support the box cover. One side of each of the two cover plates is movably connected to the inner wall of the box cover through a connecting component and can be combined to seal the upper opening of the box cover through the connecting component. Moreover, the two cover plates can each open from their combined position toward the feed port of the ore crusher under the weight of the ore to allow the ore to fall into the feed port.

2. The ore crushing safety device according to claim 1, characterized in that: The connecting assembly includes a shaft seat, a shaft sleeve, a lifting shaft, a rotating connector, a support spring and a rotating support seat, wherein the two shaft seats are respectively arranged at the two ends of the surface of the cover plate, the shaft sleeve is sleeved on the lifting shaft, and the two ends of the lifting shaft are respectively inserted into the two shaft seats, the rotating connector is installed on the inner side wall of the box cover and is connected to the shaft sleeve through the support spring, and at least one rotating support seat is arranged on the inner side wall of the box cover and is located at the bottom of the cover plate for supporting the cover plate; When the ore falls on the side of any one of the cover plates close to the other cover plate, the side of any one of the cover plates tilts downward under the weight of the ore to allow the ore to fall into the feed port of the ore crusher. After the ore falls into the feed port of the ore crusher, the tilted cover plate returns to its original flat state under the action of the rebound force of the support spring, thereby sealing the upper opening of the box cover.

3. The ore crushing safety device according to claim 2, characterized in that: The rotating connector includes a fixed member, a rotating member and a rotating shaft, wherein the two fixed members are used to be fixedly mounted on the inner side wall of the box cover, and the rotating member is movably arranged between the two fixed members through the rotating shafts on both sides thereof, and the rotating member is also provided with a fixing hole for fixing the support spring; The rotating support seat includes a U-shaped fixed seat and a rotating block connected to the notch of the fixed seat through a through shaft. The fixed seat is used to be fixed on the inner wall of the box cover, and the rotating block is used to be connected to the bottom surface of the cover plate.

4. The ore crushing safety device according to claim 1, characterized in that: It also includes a deflector guard plate, the cross-section of which is a right triangle, the right-angled surface of one side of the deflector guard plate being connected to the inner wall of the box cover, and the right-angled bottom surface of the right-angled triangle deflector guard plate being located above the cover plate and shielding the connecting component from the vertical direction.

5. The ore crushing safety device according to claim 1, characterized in that: It also includes a guide slide, two of which are respectively placed on the inner wall of the box cover below the cover plate, and the lower edges of the two guide slides are obliquely connected to the upper edge of the crushing box of the ore crusher.

6. The ore crushing safety device according to claim 5, characterized in that: It also includes a shock-absorbing deflector plate, which is an obliquely folded component. The two shock-absorbing deflector plates are each movably connected to the connection between the inner side wall of the box cover and the deflector slide plate through a plug-in hinge set at the oblique fold, and are elastically connected to the inner side wall of the box cover through a side wall spring and elastically connected to the deflector slide plate through a guard plate spring.

7. A ore crusher with a security device, characterized in that: The invention comprises an ore crusher and an ore crushing safety device as claimed in any one of claims 1 to 6, wherein: The ore crusher includes a frame-type crushing box with a screen at the bottom, a crushing roller and a drive motor. The upper opening of the crushing box constitutes the feed port of the ore crusher, and the lower opening of the crushing box constitutes the discharge port of the ore crusher. At least one group of two crushing rollers are arranged side by side inside the crushing box. The drive motor is installed outside the crushing box and connects the two crushing rollers in at least one group through a coupling to rotate in opposite directions to achieve crushing of the ore. The ore crushing safety device is installed on the outside of the ore crusher through its supporting feet, and the box cover and cover plate of the ore crushing safety device are respectively located outside and above the crushing box of the ore crusher.

8. The ore crusher with a security device according to claim 7, characterized in that: The ore crusher is suspended below the inner side of the support foot of the ore crushing safety device through an elastic connection between the outer wall of the crushing box and the support foot of the ore crushing safety device; The ore crusher is further provided with a crushing ore bucket below the crushing box. The crushing ore bucket is an open rectangular box or an open trapezoidal box whose opening is not smaller than the lower opening of the crushing box.

9. The ore crusher with a security device according to claim 8, characterized in that: The bottom of the crushed ore bucket is also provided with a universal wheel, and the crushed ore bucket can move in and out below the discharge port of the ore crusher through the rotation of several universal wheels.

10. The ore crusher with a security device according to claim 9, characterized in that: The outer side wall of the crushing ore bucket is also provided with a handle for pushing and pulling the crushing ore bucket to move.

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