Ring hammer assembly convenient to replace and crushing device thereof

Abstract

The utility model relates to the technical field of industrial production, and particularly discloses a ring hammer assembly convenient to replace and a crushing device thereof. The ring hammer assembly comprises a bearing seat, a rotating roller and a ring hammer, and a crushing cavity is formed in the interior of the crushing machine box in a hollow mode. The bearing seats are fixed to the two sides of the crushing cavity, the rotating rollers are installed in the bearing seats through bearings and can rotate freely, and the ring hammers are detachably fixed to the rotating rollers. Preferably, crushing teeth are arranged on the ring hammer, are made of hard alloy or ceramic materials, are triangular or rectangular, and are uniformly distributed along the circumferential direction of the ring hammer. A feeding port, a discharging port, a screen and a discharging port are further arranged in the crushing machine box so that materials can be effectively treated. In addition, the utility model further provides a ring hammer assembly positioning mechanism, rotation of the rotating roller is limited through a positioning block and a positioning pin, and the ring hammer is convenient to replace. The ring hammers are connected and fixed on the rotating roller through bolts and nuts or keys or expansion sleeves, so that the stability and the replaceability of the ring hammers are ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of industrial production devices, in particular to a ring hammer component which is easy to replace and a crushing device thereof. Background Art

[0002] The hammer crusher is a common material crushing equipment, which achieves material crushing through the collision of the high-speed rotating hammer with the material. This type of crusher has the advantages of simple structure, large crushing ratio, and high production efficiency, so it has been widely used in industrial production. However, in actual use, because the crusher works in a special working environment and under uncontrollable conditions, the hammer head is severely worn and may even be damaged. Due to the structural form and assembly conditions of the crusher itself, the replacement and maintenance of the hammer head becomes very difficult, and it is impossible to provide on-site repair and replacement, so that production cannot be operated or even the entire equipment is idle, which causes a waste of resources and increases production costs.

[0003] The patent "A hammer assembly for a hammer crusher" (publication number CN210815489U, hereinafter referred to as prior art 1) discloses a hammer assembly for a hammer crusher. The hammer head described in prior art 1 has a smooth surface and patterns. Such a design can reduce the direct contact area between the hammer head and the crushed material and reduce wear; and on each layer of the positioning group, the first hammer head and the second hammer head are arranged alternately. This arrangement can make the wear of the hammer head more uniform and extend the service life of the hammer head; materials with good wear resistance are selected to manufacture the hammer head to extend the service life; the hammer head is fixedly connected to the positioning seat by means of threaded connection components, etc., to ensure the stability of the hammer head and reduce wear caused by friction, etc.; in comparative document 1, resources are solved and costs are reduced by reducing the wear of the hammer head; but for the hammer head, no matter how its service life is extended, it will be worn, so that the subsequent processing effect is not ideal, and it still needs to be replaced, but the existing hammer assembly does not have a good solution for its replacement. Utility Model Content

[0004] In view of this, an embodiment of the utility model provides an easily replaceable hammer assembly and a crushing device thereof, so as to solve the problem that the hammer is inconvenient to replace after being damaged due to wear during use.

[0005] In the first aspect, an embodiment of the utility model provides an easily replaceable hammer assembly, including a crusher, wherein the crusher is provided with a crushing box; characterized in that it also includes a bearing seat, a roller and a hammer; a crushing chamber is hollow inside the crushing box; the bearing seat includes a first bearing seat and a second bearing seat; the first bearing seat and the second bearing seat are respectively fixed on the opposite sides of the crushing chamber; the first bearing seat and the second bearing seat are respectively detachably connected to the two ends of the roller; the two ends of the roller are respectively mounted in the first bearing seat and the second bearing seat through bearings and can rotate freely in the bearing seats; the hammer is detachably fixed to the roller, and the outer edge of the hammer is tangent to the inner wall of the crushing chamber; the hammer includes a plurality of hammers; a plurality of the hammers are arranged at preset intervals along the circumferential direction of the roller; a plurality of the hammers are staggered in pairs along the axial direction of the roller.

[0006] Preferably, the ring hammer is provided with a plurality of crushing teeth, and the crushing teeth are evenly distributed along the circumference of the ring hammer; the shape of the crushing teeth includes triangle or rectangle.

[0007] Preferably, the crushing teeth are made of cemented carbide or ceramic material and have high wear resistance and impact resistance.

[0008] Preferably, the crusher box is also provided with a feed port and a discharge port, the feed port is located above the crushing chamber, and the discharge port is located at one side of the crushing chamber.

[0009] Preferably, a screen is further provided inside the crusher box, and the screen is located outside the discharge port; a discharge port is also provided at the bottom of the crusher box; and the material is filtered through the screen and then discharged through the discharge port.

[0010] Preferably, it also includes a hammer assembly positioning mechanism; the hammer assembly positioning mechanism includes a positioning block and a positioning pin, the positioning block is fixed on the crusher box, and the positioning pin is fixed on the roller, when the roller rotates to the position of the positioning block, the positioning pin can be inserted into the positioning block to limit the rotation of the roller.

[0011] Preferably, the hammer is fixed by a fastener; the fastener includes a bolt and a nut, and the hammer is fixed to the roller by the bolt and the nut.

[0012] Preferably, the detachable connection is a key connection; a hollow portion is provided at both ends of the roller; the roller is detachably connected to the bearing seat via a key connection with a pair of shaft heads; fixing screws are provided at both ends of the roller at positions matching the key connection; the key of the key connection is fixed by the fixing screws.

[0013] Preferably, the detachable connection is an expansion sleeve connection; a hollow portion is provided at both ends of the roller; the roller is detachably connected to the bearing seat through an expansion sleeve connection with a pair of shaft heads; the roller is also provided with an expansion sleeve protective sleeve outside the installation position of the expansion sleeve; the expansion sleeve protective sleeve extends from the outer ring of the roller to the inner ring, and covers the entire position of the expansion sleeve.

[0014] In a second aspect, a crushing device is provided, comprising a hammer assembly as described in any one of the above items that is easy to replace.

[0015] The utility model provides a ring hammer assembly and a crushing device that is easy to replace, which has the following beneficial effects:

[0016] 1. Efficient crushing: The design of the hammer ring makes the crushing process more efficient. The crushing teeth set on the hammer ring can effectively crush the material, and the shape of the crushing teeth (such as triangle or rectangle) can adapt to different crushing requirements, thereby improving the crushing efficiency.

[0017] 2. Easy maintenance and replacement: The design of the hammer assembly makes it very easy to replace. By adopting a detachable connection (such as a key connection or a sleeve connection), the roller and hammer can be easily removed from the crusher, making it easier to maintain and replace. In addition, the positioning mechanism of the hammer also makes the replacement process more accurate and faster.

[0018] 3. Stable structure: There is a screen inside the crusher box, which can filter out large impurities in the crushed material to ensure the quality of the material at the discharge port. At the same time, there is a discharge port at the bottom of the crusher box for easy cleaning and maintenance.

[0019] In summary, this easily replaceable hammer assembly and its crushing device have multiple advantages such as high efficiency, convenience, durability, adjustability, environmental protection and stability, and are suitable for various occasions where materials need to be crushed. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solution of the embodiment of the utility model, the drawings required for use in the embodiment of the utility model will be briefly introduced below. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work, and these are all within the protection scope of the utility model.

[0021] Figure 1 It is a cross-sectional view of the cross-section structure of a ring hammer assembly that is easy to replace;

[0022] Figure 2 It is a schematic cross-sectional structure diagram of the installation of the rotating roller and the bearing seat of the hammer assembly which is easy to replace;

[0023] Figure 3It is a schematic cross-sectional structure diagram of a rotary roller key connection of a hammer assembly that is easy to replace;

[0024] Figure 4 It is a schematic cross-sectional structure diagram of a rotary roller expansion sleeve connection of a hammer assembly that is easy to replace;

[0025] Parts and numbers in the picture:

[0026] 1-crusher box, 10-crushing chamber, 11-roller, 12-ring hammer, 121-crushing teeth, 131-first bearing seat, 132-second bearing seat, 133-bearing, 14-feed port, 15-discharge port, 16-discharge port, 17-screen, 18-fastening bolts; 201-first shaft head, 202-second shaft head; 21-key, 22-setting screw, 23-screen roller transition ring; 31-expansion sleeve, 32-expansion sleeve protective sleeve. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical scheme and advantages of the embodiment of the utility model clearer, the technical scheme in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. It should be noted that, in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is any such actual relationship or order between these entities or operations. In the description of the utility model, it should be understood that the orientation or position relationship indicated by the terms "center", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the utility model. Moreover, the terms "comprises", "includes" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprises..." do not exclude the presence of other identical elements in the process, method, article or device including the elements. If there is no conflict, the embodiments of the utility model and the various features in the embodiments can be combined with each other, all within the scope of protection of the utility model.

[0028] Example 1

[0029] See also Figures 1 to 4The embodiment of the utility model provides a hammer assembly that is easy to replace, including a crusher, the crusher is provided with a crusher box 1; it is characterized in that it also includes a bearing seat, a roller 11 and a hammer 12; the crusher box 1 is hollow inside and has a crushing chamber 10; the bearing seat includes a first bearing seat 131 and a second bearing seat 132; the first bearing seat 131 and the second bearing seat 132 are respectively fixed on the opposite sides of the crushing chamber 10; the first bearing seat 131 and the second bearing seat 132 are respectively detachably connected to the two ends of the roller 11; the two ends of the roller 11 are respectively mounted on the first shaft through bearings 133 The bearing seat 131 and the second bearing seat 132 are inside and can rotate freely in the bearing seats; the ring hammer 12 is detachably fixed on the roller 11, and the outer edge of the ring hammer 12 is tangent to the inner wall of the crushing chamber 10; the ring hammer 12 includes a plurality of ring hammers 12; a plurality of ring hammers 12 are arranged at preset intervals along the circumferential direction of the roller 11; a plurality of ring hammers 12 are staggered in pairs along the axial direction of the roller 11; the first bearing seat 131 and the second bearing seat 132 are both provided with fastening bolts 18, and the fastening bolts 18 fix the first bearing seat 131 and the second bearing seat 132 to the crusher.

[0030] Preferably, the material of the crushing teeth 121 is hard alloy or ceramic material with high wear resistance and impact resistance. The ring hammer 12 is provided with a plurality of crushing teeth 121, and the crushing teeth 121 are evenly distributed along the circumference of the ring hammer 12; the shape of the crushing teeth 121 includes triangle or rectangle.

[0031] Preferably, the crushing machine box 1 is further provided with a feed port 14 and a discharge port 15 , wherein the feed port 14 is located above the crushing chamber 10 , and the discharge port 15 is located at one side of the crushing chamber 10 .

[0032] Preferably, a screen 17 is further provided inside the crushing box 1, and the screen 17 is located outside the discharge port 15; a discharge port 16 is also provided at the bottom of the crushing box 1; and the material is filtered through the screen 17 and then discharged through the discharge port 16.

[0033] Preferably, it also includes a hammer assembly positioning mechanism; the hammer assembly positioning mechanism includes a positioning block and a positioning pin, the positioning block is fixed on the crusher box 1, and the positioning pin is fixed on the roller 11, when the roller 11 rotates to the position of the positioning block, the positioning pin can be inserted into the positioning block to limit the rotation of the roller 11, and the hammer 12 can also be easily replaced.

[0034] Preferably, the hammer 12 is fixed by a fastener; the fastener includes a bolt and a nut, and the hammer 12 is fixed to the roller 11 by the bolt and the nut.

[0035] Preferably, the detachable connection is a key connection; a hollow portion is provided at both ends of the roller 11; the roller 11 is detachably connected to the bearing seat through a key connection with a pair of shaft heads 20; the shaft heads at both ends of the roller 11 are respectively a first shaft head 201 and a second shaft head 202; the first shaft head 201 and the second shaft head 202 are respectively restricted in the screen roller transition ring 23 at both ends of the roller 11 through a key connection. Both ends of the roller 11 are provided with set screws 22 at positions adapted to the key connection; the key 21 of the key connection is fixed by the set screws 22; the key connection can provide good load-bearing capacity, can withstand large axial and radial loads, and is suitable for engineering applications that need to withstand large forces; the design of the key connection can effectively transmit torque, ensure the reliability and stability of the connection, and perform well in high-torque or high-speed working environments; and the key connection is relatively simple to set up, easy to install and disassemble, and does not require complex equipment or tools. It is more suitable for occasions that require frequent maintenance and replacement, and is convenient for replacing the hammer ring 12; the key connection can also provide better connection tightness, avoid loosening or displacement of the connection part, and ensure the stability and accuracy of the device.

[0036] A pair of the shaft heads are connected in the screen roller transition ring 23 via keys, and at the same time, a set screw 22 is provided at the position of the key 21 to fix the key 21 , thereby further limiting the axial movement of the shaft head 20 .

[0037] Preferably, the detachable connection is an expansion sleeve connection; a hollow portion is provided at both ends of the roller 11; the roller 11 is detachably connected to the bearing seat through an expansion sleeve connection with a pair of shaft heads 20; the roller 11 is also provided with an expansion sleeve protective sleeve 32 outside the installation position of the expansion sleeve 31; the expansion sleeve protective sleeve 32 extends from the outer ring of the roller 11 to the inner ring, and covers the entire position of the expansion sleeve 31 inside.

[0038] Example 2

[0039] Second, see Figures 1 to 4, an embodiment of the utility model provides a crushing device, including a hammer assembly that is easy to replace as described in any of the above embodiments. A motor is also provided on the crusher box 1, and the motor drives the roller 11 to rotate through the connection between the shaft head and the roller 11. The transmission mechanism of the crusher should also include a reducer, a coupling and a drive shaft. After the motor is decelerated by the reducer, it is connected to the drive shaft through the coupling, and the drive shaft is connected to the roller 11 through the bearing seat; an observation window and a cleaning door are also provided on the crusher box 1. The observation window is used to observe the situation in the crushing chamber, and the cleaning door is used to clean up the debris in the crushing chamber. A shock absorbing device is also provided at the bottom of the crusher box 1. The shock absorbing device includes a shock absorber and a support foot. The shock absorber is fixed on the support foot, and the support foot is fixed to the bottom of the crusher box, which can reduce the vibration and noise of the crusher box 1 during operation.

[0040] The crusher box 1 is also provided with a protective member inside, and the protective member includes a protective cover and a protective net. The protective cover covers the top of the crushing teeth, and the protective net is provided at the bottom of the crushing chamber, which can prevent material splashing and dust, and protect the safety of the staff. A control box can also be provided outside the crusher box 1, and a controller and a touch screen are provided in the control box. The controller is used to control the start, stop and speed regulation of the crusher; the hammer assembly also includes fasteners, which are bolts and nuts. The hammer 12 is fixed to the roller 11 by bolts and nuts, which is convenient for disassembly and replacement of the hammer 12.

[0041] Example 3

[0042] See also Figures 1 to 4The embodiment of the utility model provides a ring hammer assembly and a crushing device that are easy to replace. The ring hammer assembly and the crushing device that are easy to replace provided by the utility model have the following beneficial effects: efficient crushing, the design of the ring hammer 12 makes the crushing process more efficient. The crushing teeth arranged on the ring hammer 12 can effectively crush the material, and the shape of the crushing teeth (such as a triangle or a rectangle) can adapt to different crushing requirements, thereby improving the crushing efficiency; easy maintenance and replacement, the design of the ring hammer assembly makes its replacement very simple. By adopting a detachable connection (such as a key connection or an expansion sleeve connection), the roller 11 and the ring hammer 12 can be easily removed from the crusher, thereby facilitating maintenance and replacement. In addition, the positioning mechanism of the hammer 12 also makes the replacement process more accurate and faster; the service life is extended, and the material of the hammer 12 (such as hard alloy or ceramic material) has high wear resistance and impact resistance, which means that the service life of the hammer 12 will be longer, thereby reducing maintenance costs; the crushing effect is adjustable, and by adjusting the number and arrangement of the hammers and the shape and size of the crushing teeth, the crushing effect can be accurately controlled to meet different production needs; energy saving and environmental protection, due to the high crushing efficiency and less dust and noise generated during the crushing process, this crushing device has better environmental performance; the structure is stable, and a screen is provided inside the crusher box to filter out large impurities in the crushed material to ensure the quality of the material at the discharge port. At the same time, a discharge port is also provided at the bottom of the crusher box for easy cleaning and maintenance.

[0043] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A hammer assembly that is easy to replace, comprising a crusher, wherein the crusher is provided with a crusher box (1); characterized in that: It also includes a bearing seat, a rotating roller (11) and a hammer (12); The crushing box (1) is hollow inside and is provided with a crushing chamber; The bearing seat comprises a first bearing seat (131) and a second bearing seat (132); the first bearing seat (131) and the second bearing seat (132) are respectively fixed to two opposite sides of the crushing chamber (10); the first bearing seat (131) and the second bearing seat (132) are respectively detachably connected to two ends of the rotating roller (11); Both ends of the rotating roller (11) are respectively mounted in a first bearing seat (131) and a second bearing seat (132) via bearings (133) and are able to rotate freely in the bearing seats; The ring hammer (12) is detachably fixed to the rotating roller (11), and the outer edge of the ring hammer (12) is tangent to the inner wall of the crushing chamber (10); the ring hammer (12) comprises a plurality of ring hammers; the plurality of ring hammers (12) are arranged at preset intervals along the circumferential direction of the rotating roller (11); and the plurality of ring hammers (12) are staggered in pairs along the axial direction of the rotating roller (11).

2. The easily replaceable hammer assembly according to claim 1, characterized in that: The ring hammer (12) is provided with a plurality of crushing teeth (121), and the crushing teeth are evenly distributed along the circumference of the ring hammer (12); The shape of the crushing teeth (121) includes a triangle or a rectangle.

3. The easily replaceable hammer assembly according to claim 2, characterized in that: The crushing teeth (121) are made of hard alloy or ceramic material and have wear resistance and impact resistance.

4. The easily replaceable hammer assembly according to claim 1, characterized in that: The crushing machine box (1) is also provided with a feed port (14) and a discharge port (15), wherein the feed port (14) is located above the crushing chamber, and the discharge port (15) is located on one side of the crushing chamber (10).

5. The easily replaceable hammer assembly according to claim 4, characterized in that: A screen (17) is also provided inside the crushing box (1), and the screen (17) is located outside the discharge port (15); a discharge port (16) is also provided at the bottom of the crushing box (1); and materials are filtered through the screen (17) and then discharged through the discharge port (16).

6. The easily replaceable hammer assembly according to claim 1, characterized in that: It also includes a hammer assembly positioning mechanism; the hammer assembly positioning mechanism includes a positioning block and a positioning pin, the positioning block is fixed on the crusher box (1), and the positioning pin is fixed on the roller (11), when the roller (11) rotates to the position of the positioning block, the positioning pin can be inserted into the positioning block to limit the rotation of the roller (11).

7. The easily replaceable hammer assembly according to claim 6, characterized in that: The ring hammer (12) is fixed by means of a fastener; the fastener comprises a bolt and a nut, and the ring hammer (12) is fixed to the rotating roller (11) by means of the bolt and the nut.

8. The easily replaceable hammer assembly according to claim 1, characterized in that: The detachable connection is a key connection; a hollow portion is provided at both ends of the roller (11); the roller (11) is detachably connected to the bearing seat via a key connection with a pair of shaft heads (20); fixing screws (22) are provided at both ends of the roller (11) at positions matching the key connection; the key (21) of the key connection is fixed by the fixing screw (22).

9. The easily replaceable hammer assembly according to claim 1, characterized in that: The detachable connection is an expansion sleeve connection; a hollow portion is provided at both ends of the roller (11); the roller (11) is detachably connected to the bearing seat through an expansion sleeve connection with a pair of shaft heads (20); the roller (11) is further provided with an expansion sleeve protective sleeve (32) outside the installation position of the expansion sleeve (31); the expansion sleeve protective sleeve (32) is extended from the outer ring of the roller (11) to the inner ring, and the entire position of the expansion sleeve (31) is covered therein.

10. A crushing device, characterized in that: The invention comprises a ring hammer assembly which is easy to replace as described in any one of claims 1 to 9.

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