Detachable screen roller for crushing device and crushing device thereof

Abstract

The utility model relates to the technical field of industrial manufacturing, and particularly discloses a detachable screen roller for a crushing device and the crushing device thereof, the detachable screen roller comprises a screen roller main body, the screen roller main body consists of a roller and shaft heads arranged at two ends of the roller, and the shaft heads at the two ends of the roller are respectively a first shaft head and a second shaft head and are detachably connected with the two ends of the roller. The roller is of a hollow structure with certain strength and wall thickness; key connection is adopted in the connection mode, screen roller transition rings are arranged at the inner rings at the two ends of the roller and fixed through welding, and the first shaft head and the second shaft head are in key connection at the positions, provided with the screen roller transition rings, of the inner rings at the two ends of the roller respectively, so that the shaft heads are limited in the screen roller transition rings. In addition, set screws are arranged at the two ends of the roller and used for fixing keys connected through the keys. The other detachable connection mode is expansion sleeve connection, and an expansion sleeve protection sleeve is arranged to protect the roller.

Description

Technical Field

[0001] The utility model relates to the technical field of industrial manufacturing devices, in particular to a detachable screen roller for a crushing device and a crushing device thereof. Background Art

[0002] Currently, most of the screen rollers used in crushers are integral. When in use, only the middle part of the screen roller will be worn. The transmission part connected to the bearing and the part that does not wear with the material will not be worn. However, the integral screen roller requires the replacement of the entire screen roller, which greatly increases the cost of using the screen roller.

[0003] At the same time, the length of the overall screen roller is much larger than the width of the crusher, so the screen roller can only be pulled out from one side of the equipment wall when it is replaced. This requires enough space on both sides of the equipment to remove the screen roller from both sides of the equipment, which greatly increases the manufacturing cost of the crusher foundation and maintenance space.

[0004] In the patent "A rolled shaft with high-precision structure" (publication number CN214888336U, hereinafter referred to as prior art 1), a rolled shaft with high-precision structure is disclosed, which mentions many processing and connection details, as well as the material and surface treatment of the shaft body. This method may have the following defects: due to the large number of processing and connection details involved, including keyways, bearings, linings, connection mechanisms, etc., this may increase the complexity of the manufacturing process; and the complex structure of the rolled shaft may increase the difficulty of maintenance and repair. For example, if there is a problem with the gasket, friction plate or ball bearing, it may take more time and cost to repair or replace it; Prior art 1 also mentions that the requirements for the machining accuracy of the shaft body are within a certain range, and that the dynamic balancing requirements are met. This may require high-precision processing equipment and technology, increasing manufacturing costs and process requirements. Utility Model Content

[0005] In view of this, an embodiment of the utility model provides a detachable screen roller for a crushing device and a crushing device thereof, so as to solve the problem that the screen roller is an integral part and the replacement of the integral screen roller requires the replacement of the entire screen roller, which greatly increases the use cost of the screen roller and the inconvenience during replacement.

[0006] In the first aspect, an embodiment of the utility model provides a detachable screen roller for a crushing device, characterized in that it includes a screen roller main body; the screen roller main body is composed of a drum and shaft heads arranged at both ends of the drum; the shaft heads at both ends of the drum are respectively a first shaft head and a second shaft head; the first shaft head and the second shaft head are respectively detachably connected to the two ends of the drum; wherein the detachable connection includes a key connection; the drum is provided with a screen roller transition ring at the inner ring at both ends; the screen roller transition ring is fixed to the inner ring on both sides of the drum by welding; the first shaft head and the second shaft head are respectively key-connected at the inner ring at both ends of the drum where the screen roller transition ring is provided.

[0007] Preferably, the drum is a hollow structure, but has a wall thickness that can withstand a certain strength; the shaft head is detachably connected by arranging the outer ring on the inner ring of the drum; the outer ring of the drum is also provided with a plurality of convex teeth arranged at equal intervals; and the convex teeth are all provided with convex angles.

[0008] Preferably, the first shaft head and the second shaft head are respectively connected by keys so that the first shaft head and the second shaft head are restricted in the screen roller transition rings at both ends of the drum.

[0009] Preferably, both ends of the drum are provided with set screws at positions matching the key connection; the key of the key connection is fixed by the set screws.

[0010] Preferably, the shaft head is limited in axial displacement by matching the shaft head outer diameter with the inner diameter of the screen roller transition ring and fixing the key by a set screw.

[0011] Preferably, the detachable connection is an expansion sleeve connection; the expansion sleeve is arranged between the outer ring of the shaft head and the inner ring of the drum.

[0012] Preferably, the roller is further provided with an expansion sleeve protective sleeve outside the expansion sleeve installation position.

[0013] Preferably, the expansion sleeve protective sleeve is extended from the outer ring to the inner ring of the drum and completely covers the position of the expansion sleeve.

[0014] Preferably, the cross-sectional shape of the protruding teeth includes a trapezoid, a cone, a triangle or a rectangle.

[0015] In a second aspect, a crushing device is provided, comprising a detachable screen roller as described in any one of the above items.

[0016] The detachable screen roller for a crushing device provided by the utility model has the following beneficial effects:

[0017] 1. Easy to maintain and replace: Since the screen roller adopts a detachable design, the operator can easily replace the damaged screen roller with a new one without replacing the entire crushing device; and the drum is a hollow structure, and the inner rings on both sides of the drum are first welded to the screen roller transition ring and then processed as a whole, which can greatly save the materials used for the drum, save maintenance time and cost.

[0018] 2. Prevent loosening: The axial movement of the shaft head is limited by the cooperation between the outer diameter of the shaft head and the inner diameter of the transition ring of the screen roller. At the same time, a set screw is provided at the key position to fix the key. The key connection is fixed by the set screw to avoid loosening of the key connection during use, thereby ensuring the reliability and safety of the device.

[0019] 3. Protective device: The design of the expansion sleeve connection and the expansion sleeve protective sleeve can effectively protect the shaft head and the roller, avoiding the material from entering the expansion sleeve and damaging the expansion sleeve during use, preventing it from external damage or corrosion, and further extending the service life of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solution of the embodiment of the utility model, the following is a brief introduction to the drawings required for use in the embodiment of the utility model. 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 schematic diagram of the structure of a detachable screen roller for a crushing device;

[0022] Figure 2 It is a schematic cross-sectional structure diagram of a detachable screen roller key connection for a crushing device;

[0023] Figure 3 It is a schematic cross-sectional structure diagram of a detachable screen roller expansion sleeve connection for a crushing device;

[0024] Parts and numbers in the picture:

[0025] 10-screen roller body, 11-drum, 12-first shaft head, 13-second shaft head, 14-convex teeth;

[0026] 21-key, 22-set screw, 23-screen roller transition ring;

[0027] 31-Expansion sleeve, 32-Expansion sleeve protective sleeve. DETAILED DESCRIPTION

[0028] 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 present 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.

[0029] Example 1

[0030] See also Figures 1 to 3 The embodiment of the utility model provides a detachable screen roller for a crushing device, characterized in that it includes a screen roller body 10; the screen roller body 10 is composed of a drum 11 and shaft heads arranged at both ends of the drum 11; the shaft heads at both ends of the drum 11 are respectively a first shaft head 12 and a second shaft head 13; the first shaft head 12 and the second shaft head 13 are respectively detachably connected to the two ends of the drum 11; generally in processing, the drum 11 undertakes most of the work for a long time, and the processing and rotation are performed by the drum 11, so the wear of the drum 11 is generally the greatest; when the relative drum 11 is disassembled, the whole needs to be replaced; now this problem is solved by a detachable connection. When the drum 11 is used too much, it only needs to be disassembled and replaced; it is not only convenient to replace but also solves the problem of high cost.

[0031] Preferably, the drum 11 is a hollow structure, but is provided with a wall thickness that can withstand a certain strength; the hollow structure can reduce the weight of the drum 11 to a certain extent, making the entire device lighter and reducing the cost and difficulty of transportation and installation; although the hollow structure reduces the weight, by reasonably designing the wall thickness of the hollow part, it is still possible to ensure that the drum 11 has sufficient strength to withstand the impact and pressure during work, thereby improving the durability of the device; the hollow structure reduces the inertia of the drum 11, thereby reducing energy consumption during operation and improving the energy efficiency performance of the device; the hollow structure is also conducive to the regulation of the internal temperature, especially in applications where the drum temperature needs to be controlled, such as the operation of the device under high or low temperature conditions; the shaft head is detachably connected by arranging the outer ring on the inner ring of the drum 11; the outer ring of the drum 11 is also provided with a plurality of convex teeth 14 arranged at equal intervals; the convex teeth 14 are all provided with convex corners; the convex teeth 14 work by colliding with the material through the convex corners during rotation, and a convex corner is set to enhance its crushing effect.

[0032] Preferably, the detachable connection is a key connection; the drum 11 is provided with a screen roller transition ring 23 at the inner ring at both ends; the screen roller transition ring 23 is fixed to the inner ring on both sides of the drum 11 by welding; the first shaft head 12 and the second shaft head 13 are key-connected at the inner rings at both ends of the drum 11 where the screen roller transition rings 23 are provided; 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, does not require complex equipment or tools, and is more suitable for occasions that require frequent maintenance and replacement; the key connection can also provide better connection tightness, avoid loosening or displacement of the connection parts, and ensure the stability and precision of the device. The first shaft head and the second shaft head are connected in the screen roller transition ring 23 through a key. The axial movement of the shaft head is limited by the cooperation between the outer diameter of the shaft head and the inner diameter of the screen roller transition ring 23. At the same time, a set screw 22 is provided at the key position to fix the key 21, further limiting the axial movement of the shaft head.

[0033] Preferably, the first shaft head 12 and the second shaft head 13 are respectively connected by keys so that the first shaft head 12 and the second shaft head 13 are restricted in the screen roller transition rings at both ends of the drum.

[0034] Preferably, both ends of the drum 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 .

[0035] Preferably, the cross-sectional shape of the protruding teeth 14 includes a trapezoid, a cone, a triangle or a rectangle.

[0036] Example 2

[0037] See also Figures 1 to 3 The embodiment of the utility model provides a detachable screen roller for a crushing device, including a screen roller body 10; the screen roller body 10 is composed of a drum 11 and shaft heads arranged at both ends of the drum 11; the shaft heads at both ends of the drum 11 are respectively a first shaft head 12 and a second shaft head 13; the first shaft head 12 and the second shaft head 13 are respectively detachably connected to the two ends of the drum 11.

[0038] Preferably, the roller 11 is a hollow structure, but has a wall thickness that can withstand a certain strength; the shaft head is detachably connected by arranging the outer ring on the inner ring of the roller 11; the outer ring of the roller 11 is also provided with a plurality of convex teeth 14 arranged at equal intervals; and the convex teeth 14 are all provided with convex corners.

[0039] Preferably, the detachable connection is an expansion sleeve connection; the expansion sleeve 31 is arranged between the outer ring of the shaft head and the inner ring of the roller 11; the expansion sleeve connection can provide greater bearing capacity, is suitable for engineering applications that need to withstand greater forces, and can meet some high-strength working environments; the expansion sleeve connection can provide a very tight connection, effectively prevent the loosening or displacement of the connection part, and ensure the stability and reliability of the device; and the expansion sleeve connection is suitable for the connection of shafts and holes of various shapes and sizes, and has strong versatility and applicability; the expansion sleeve connection does not require the shaft to be processed, and a tight connection can be formed on the surface of the shaft, avoiding surface damage or deformation that may be caused by processing. After the roller 11 is processed, it is connected to the first shaft head 12 and the second shaft head 13 on both sides through the expansion sleeve, and the friction between the expansion sleeve 31 and the inner and outer rings of the roller 11 limits the axial movement of the shaft head, and an expansion sleeve protective sleeve 32 is installed on the outside of the expansion sleeve 31 to avoid materials entering the expansion sleeve and damaging the expansion sleeve during use.

[0040] Preferably, the drum 11 is further provided with an expansion sleeve protection sleeve 32 outside the installation position of the expansion sleeve 31 .

[0041] Preferably, the expansion sleeve protective sleeve 32 is extended from the outer ring to the inner ring of the drum 11 and completely covers the position of the expansion sleeve 31 therein.

[0042] Preferably, the cross-sectional shape of the protruding teeth 14 includes a trapezoid, a cone, a triangle or a rectangle.

[0043] In summary, key connection is suitable for applications with easy installation and frequent maintenance, while expansion sleeve connection is suitable for applications that require greater load-bearing capacity and connection tightness. The selection of the appropriate connection method should be considered based on specific engineering requirements and use environment.

[0044] Example 3

[0045] Second, see Figures 1 to 3 The embodiment of the utility model provides a crushing device, characterized in that it includes a detachable screen roller for a crushing device as described in any of the above embodiments; a detachable screen roller for a crushing device makes the screen roller detachable, combines the drum (11) used for material crushing and the shaft head and other components used for transmission together, and distinguishes the components with significant life differences, thereby greatly saving the cost of using the crusher's wearing parts. During maintenance, the integral screen roller needs to lift the entire screen roller out from one side of the crushing device, which requires maintenance space on both sides of the crushing device that is not less than the length of the screen roller to remove the screen roller. A screen roller for a crushing device can pull out the first shaft head 12 and the second shaft head 13 on both sides from both sides of the device inside the device, and the drum 11 is vertically lifted, which greatly saves space on both sides of the crusher. The vertically lifted drum 11 also greatly reduces the difficulty of repairing the screen roller; this crushing device has many beneficial effects such as easy maintenance, high durability, and good stability.

[0046] Example 4

[0047] See also Figures 1 to 3 The embodiment of the utility model provides a detachable screen roller for a crushing device. In summary, the detachable screen roller for a crushing device provided by the utility model has the following beneficial effects: easy maintenance and replacement. Since the screen roller adopts a detachable design, the operator can easily replace the damaged screen roller with a new one without replacing the entire crushing device as a whole; and the drum is a hollow structure, and the inner rings on both sides of the drum are first welded to the screen roller transition ring and then processed as a whole, which can greatly save the materials used for the drum, save maintenance time and cost; to prevent loosening, the axial movement of the shaft head is limited by the cooperation of the outer diameter of the shaft head and the inner diameter of the screen roller transition ring, and at the same time, a set screw is provided at the position of the key to fix the key, and the key connection is fixed by the set screw, which avoids the loosening of the key connection during use, thereby ensuring the reliability and safety of the device; the protection device, the design of the expansion sleeve connection and the expansion sleeve protection sleeve can effectively protect the shaft head and the drum, avoid the material entering the expansion sleeve and damaging the expansion sleeve during use, prevent it from being damaged or corroded by the outside, and further extend the service life of the device.

[0048] 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 detachable screen roller for a crushing device, characterized in that: It comprises a screen roller body (10); The screen roller body (10) is composed of a roller (11) and shaft heads arranged at both ends of the roller (11); the shaft heads at both ends of the roller (11) are respectively a first shaft head (12) and a second shaft head (13); The first shaft head (12) and the second shaft head (13) are respectively connected to two ends of the roller (11) in a detachable manner; Wherein, the detachable connection comprises a key connection; The inner rings at both ends of the drum (11) are provided with screen roller transition rings (23); the screen roller transition rings (23) are fixed to the inner rings at both sides of the drum (11) by welding; The first shaft head (12) and the second shaft head (13) are key-connected at the inner rings of the two ends of the drum (11) where a screen roller transition ring (23) is provided.

2. A detachable screen roller for a crushing device according to claim 1, characterized in that: The roller (11) is a hollow structure, but has a wall thickness capable of withstanding a certain strength; the shaft head is detachably connected by arranging the outer ring on the inner ring of the roller (11); the outer ring of the roller (11) is also provided with a plurality of convex teeth (14) arranged at equal intervals; and the convex teeth are all provided with convex angles.

3. The detachable screen roller for a crushing device according to claim 1, characterized in that: The first shaft head (12) and the second shaft head (13) are respectively connected by keys so that the first shaft head (12) and the second shaft head (13) are restricted within the screen roller transition rings at both ends of the drum.

4. A detachable screen roller for a crushing device according to claim 3, characterized in that: Both ends of the roller (11) are provided with set screws at positions matching the key connection; the key of the key connection is fixed by the set screws.

5. A detachable screen roller for a crushing device according to claim 4, characterized in that: The shaft head is limited in axial displacement by matching the shaft head outer diameter with the inner diameter of the screen roller transition ring (23) and fixing the key by a set screw.

6. A detachable screen roller for a crushing device according to claim 2, characterized in that: The detachable connection is an expansion sleeve connection; the expansion sleeve (31) is arranged between the outer ring of the shaft head and the inner ring of the roller (11).

7. A detachable screen roller for a crushing device according to claim 6, characterized in that: The roller (11) is further provided with an expansion sleeve protection sleeve (32) outside the installation position of the expansion sleeve (31).

8. A detachable screen roller for a crushing device according to claim 7, characterized in that: The expansion sleeve protective sleeve (32) is extended from the outer ring to the inner ring of the roller (11) and completely covers the position of the expansion sleeve (31) therein.

9. A detachable screen roller for a crushing device according to claim 2, characterized in that: The cross-sectional shape of the protruding teeth (14) includes a trapezoid, a cone, a triangle or a rectangle.

10. A crushing device, characterized in that: A detachable screen roller for a crushing device comprising the steps of:

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