A gap adjustable step wheel
By designing an adjustable-gap grading wheel, the blade spacing and thickness can be adjusted, solving the problems of insufficient applicability and precision of traditional grading wheels, improving grading accuracy and equipment stability, and reducing maintenance costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- KUNSHAN DEMIJIA PRECISION MASCH CO LTD
- Filing Date
- 2025-05-22
- Publication Date
- 2026-05-29
AI Technical Summary
Traditional grading wheel designs cannot adjust the blade spacing, resulting in low grading accuracy, limited applicability, and high replacement costs.
An adjustable-gap grading wheel was designed. The blade spacing is adjusted by an adjustment mechanism. A combination structure of blade one and blade two is adopted. The blade thickness is adjusted by an adjustment sleeve and an adjustment slider to enhance the blade strength and wear resistance.
This technology allows for adjustment of blade gaps based on material particle size, improving grading accuracy and applicability, reducing maintenance costs, and extending equipment lifespan.
Smart Images

Figure CN224293951U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of grading wheel technology, specifically a grading wheel with adjustable gap. Background Technology
[0002] A classifying wheel is a widely used device in industrial production, primarily used for classifying materials to separate them into different particle sizes. In many industrial sectors, such as mineral processing, chemical engineering, building materials, and food processing, the performance of the classifying wheel directly impacts production efficiency and product quality. However, traditional classifying wheel designs have some problems and shortcomings, which may lead to low classification accuracy, rapid equipment wear, high maintenance costs, and limited applicability in practical applications.
[0003] Traditional classifying wheels typically employ a fixed-gap design, where the spacing between the blades cannot be adjusted. While this design is simple in structure, it struggles to meet classification accuracy requirements when dealing with materials of varying particle sizes. Furthermore, any change in material properties necessitates replacing the entire classifying wheel, increasing production costs. Therefore, a classifying wheel with adjustable gaps is proposed to address these issues. Utility Model Content
[0004] The technical problem to be solved by this utility model is to provide a grader with adjustable gap, which addresses the shortcomings of the prior art.
[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a grading wheel with adjustable gap, comprising:
[0006] Outer rim and inner rim;
[0007] Multiple blades are disposed on the inner wall of the outer ring and the outer wall of the inner ring;
[0008] An adjustment mechanism, located on the outer ring, is used to adjust the spacing between the blades;
[0009] A circular ring is fixedly connected to one side of the inner rim and fits against the outer rim.
[0010] Preferably, each of the blades comprises:
[0011] Blade one is fixedly connected to the inner wall of the outer ring, and the other side of blade one is in contact with the outer wall of the inner ring;
[0012] Blade 2 is fixedly connected to the outer wall of the inner rim, and the other side of blade 2 is in contact with the inner wall of the outer rim;
[0013] The adjusting slider is fixedly connected to one side of the first blade;
[0014] An adjusting sleeve is fixedly connected to one side of the second blade, and the adjusting sleeve is fitted onto the outer wall of the adjusting slider to adjust the distance between the first blade and the second blade.
[0015] Preferably, the outer circumferential outer wall of the outer ring is provided with multiple through holes, and a reinforcing rod is fixedly connected in the through holes to improve the strength of the outer ring;
[0016] Multiple reinforcing plates are fixedly connected to the inner side of the reinforcing rod, and the reinforcing plates are connected to blade one to strengthen the strength of blade one.
[0017] Preferably, the adjustment mechanism includes:
[0018] A groove is formed on the outer ring and the annular ring, and an annular slider is fixedly connected to the inner wall of the groove, and the annular slider slides within the groove of the annular ring.
[0019] Preferably, the adjustment mechanism further includes:
[0020] Multiple adjustment slots are formed on the annular slider and the outer ring;
[0021] Multiple adjusting rods are disposed within the adjusting groove, passing through the circular ring and extending outward;
[0022] The extension end of the adjusting rod has a threaded groove and is connected by a lock nut.
[0023] Preferably, a T-shaped groove is formed at the bottom of the inner wall of the adjusting groove, and the bottom of the adjusting rod is slidably connected in the T-shaped groove.
[0024] The present invention adopts the above technical solution, which can bring the following beneficial effects:
[0025] 1. This adjustable-gap classifier allows users to flexibly adjust the gap between the blades according to actual needs through the design of the adjustment mechanism. This adjustability enables the classifier to adapt to the classification requirements of materials with different particle sizes, improving the versatility and applicability of the classifier.
[0026] 2. This adjustable-gap grading wheel features two blades, Blade 1 and Blade 2, with their thickness adjusted via an adjusting sleeve and slider. Increasing the blade thickness significantly improves its strength and wear resistance, enabling stability during high-speed rotation and reducing grading errors caused by blade deformation or vibration, thereby enhancing grading accuracy. Attached Figure Description
[0027] Figure 1 This is a schematic diagram of the structure of this utility model;
[0028] Figure 2 This is a schematic diagram of the rear structure of the present invention;
[0029] Figure 3 This utility model Figure 2 Enlarged structural diagram at point A in the middle;
[0030] Figure 4 This is a schematic diagram of the exploded structure of this utility model;
[0031] Figure 5 This utility model Figure 4 Enlarged structural diagram at point B.
[0032] In the diagram: 1. Outer ring; 2. Reinforcing rod; 3. Ring; 4. Inner ring; 5. Adjusting mechanism; 51. Slide groove; 52. Annular slider; 53. Adjusting rod; 54. Locking nut; 55. Adjusting groove; 6. Blade; 61. Blade 1; 62. Blade 2; 63. Adjusting slider; 64. Adjusting sleeve; 7. Reinforcing plate. Detailed Implementation
[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0034] Please see Figure 1-5 One embodiment of this utility model is: a grading wheel with adjustable gap, comprising:
[0035] Outer rim 1 and inner rim 4;
[0036] Multiple blades 6 are disposed on the inner wall of the outer ring 1 and the outer wall of the inner ring 4;
[0037] Adjustment mechanism 5, located on outer ring 1, is used to adjust the spacing of blades 6;
[0038] The ring 3 is fixedly connected to one side of the inner rim 4 and fits against the outer rim 1.
[0039] Each blade 6 includes:
[0040] Blade 61 is fixedly connected to the inner wall of the outer ring 1, and the other side of blade 61 is in contact with the outer wall of the inner ring 4.
[0041] Blade 2 62 is fixedly connected to the outer wall of the inner ring 4, and the other side of blade 2 62 is in contact with the inner wall of the outer ring 1;
[0042] Adjusting slider 63 is fixedly connected to one side of blade 61;
[0043] The adjusting sleeve 64 is fixedly connected to one side of the second blade 62, and the adjusting sleeve 64 is sleeved on the outer wall of the adjusting slider 63, and is used to adjust the distance between the first blade 61 and the second blade 62.
[0044] The outer circumferential outer wall of the outer ring 1 has multiple through holes, and a reinforcing rod 2 is fixedly connected inside the through holes to improve the strength of the outer ring 1.
[0045] Multiple reinforcing plates 7 are fixedly connected to the inner side of the reinforcing rod 2, and the reinforcing plates 7 are connected to the blade 61 to strengthen the blade 61. The design of the reinforcing rod 2 and the reinforcing plates 7 further enhances the strength of the outer ring 1 and the blade 61. This structural design not only improves the overall stability of the grading wheel, but also extends its service life and reduces maintenance costs.
[0046] Adjustment mechanism 5 includes:
[0047] A groove 51 is formed on the outer ring 1 and the ring 3, and an annular slider 52 is fixedly connected to the inner wall of the groove 51, and the annular slider 52 slides in the groove 51 of the ring 3.
[0048] The regulating mechanism 5 also includes:
[0049] Multiple adjustment slots 55 are provided on the annular slider 52 and the outer ring 1;
[0050] Multiple adjusting rods 53 are disposed in the adjusting groove 55, and pass through the ring 3 and extend outward;
[0051] The extension end of the adjusting rod 53 has a threaded groove and is connected by a locking nut 54.
[0052] The bottom of the inner wall of the adjusting groove 55 is provided with a T-shaped sliding groove, and the bottom of the adjusting rod 53 is slidably connected in the T-shaped sliding groove.
[0053] Working principle: When using the grading wheel, it is necessary to adjust the gap of the grading wheel. At this time, simply loosen the multiple locking nuts 54 on the ring 3. The locking nuts 54 will release the restriction of the ring 3. Simply rotate the outer wheel ring 1 and the inner wheel ring 4 in opposite directions. This will directly drive the adjusting rod 53 to move in the adjusting groove 55. When it moves to the appropriate position, simply tighten the locking nuts 54 again to restrict the ring 3 and restore its fixing function.
[0054] Meanwhile, as the outer ring 1 and the inner ring 4 move relative to each other, they will drive the first blade 61 and the second blade 62 to rotate relative to each other. When the second blade 62 moves away from the first blade 61, it will simultaneously drive the adjusting sleeve 64 to slide on the adjusting slider 63, thereby changing the thickness of the blade 6. After the blade 6 becomes thicker, its strength and wear resistance will be increased, making it more stable when rotating at high speed, reducing the grading error caused by blade deformation or vibration, and helping to improve the grading accuracy. At the same time, the thicker blade 6 will occupy more space, which will reduce the gap between the blades and make the gap adjustable, thereby narrowing the material channel inside the grading wheel. Under the same feeding speed, the material flow rate may be reduced, thus affecting the processing capacity of the grading machine.
[0055] Furthermore, the reinforcing plate 7 provides even better support for the blade 6, improving the stability of the blade 6 during rotation.
[0056] This utility model provides a grader wheel with adjustable gap. There are many methods and approaches to implement this technical solution. The above description is only a preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model. All components not explicitly stated in this embodiment can be implemented using existing technology.
Claims
1. A grading wheel with adjustable gap, characterized in that, include: Outer rim (1) and inner rim (4); Multiple blades (6) are disposed on the inner wall of the outer ring (1) and the outer wall of the inner ring (4); An adjustment mechanism (5) is provided on the outer ring (1) for adjusting the spacing of the blades (6); The ring (3) is fixedly connected to one side of the inner rim (4) and fits against the outer rim (1).
2. The adjustable-gap grading wheel according to claim 1, characterized in that: Each of the blades (6) comprises: Blade 1 (61) is fixedly connected to the inner wall of the outer ring (1), and the other side of blade 1 (61) is attached to the outer wall of the inner ring (4); Blade 2 (62) is fixedly connected to the outer wall of the inner ring (4), and the other side of blade 2 (62) is attached to the inner wall of the outer ring (1); Adjusting slider (63) is fixedly connected to one side of blade one (61); An adjusting sleeve (64) is fixedly connected to one side of the second blade (62), and the adjusting sleeve (64) is sleeved on the outer wall of the adjusting slider (63) for adjusting the distance between the first blade (61) and the second blade (62).
3. The adjustable-gap grading wheel according to claim 2, characterized in that: The outer circumferential outer wall of the outer ring (1) is provided with multiple through holes, and a reinforcing rod (2) is fixedly connected in the through holes to improve the strength of the outer ring (1). Multiple reinforcing plates (7) are fixedly connected to the inner side of the reinforcing rod (2), and the reinforcing plates (7) are connected to the blade (61) to strengthen the blade (61).
4. The adjustable-gap grading wheel according to claim 3, characterized in that: The adjustment mechanism (5) includes: A groove (51) is formed on the outer ring (1) and the ring (3), and an annular slider (52) is fixedly connected to the inner wall of the groove (51), and the annular slider (52) slides in the groove (51) of the ring (3).
5. The adjustable-gap grading wheel according to claim 4, characterized in that: The adjustment mechanism (5) further includes: Multiple adjustment slots (55) are formed on the annular slider (52) and the outer ring (1); Multiple adjusting rods (53) are disposed in the adjusting groove (55), and pass through the ring (3) and extend outward; The extension end of the adjusting rod (53) has a threaded groove and is connected by a locking nut (54).
6. The adjustable-gap grading wheel according to claim 5, characterized in that: The bottom of the inner wall of the adjustment groove (55) is provided with a T-shaped sliding groove, and the bottom of the adjustment rod (53) is slidably connected in the T-shaped sliding groove.