A wear-resistant blade for a stirring device
By introducing a sliding counterweight and a sliding extension plate structure on the mixer blades, the problem of material jamming and inconvenient cleaning is solved, automatic cleaning is achieved, wear is reduced, and the efficiency and safety of the mixing equipment are improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- QINGDAO CHANGXIN POWER EQUIP CO LTD
- Filing Date
- 2025-07-16
- Publication Date
- 2026-06-09
AI Technical Summary
The blades of existing mixers are prone to getting stuck between the inner walls when materials clump together or the particles are too large, which makes cleaning inconvenient, increases the workload of workers, and affects the performance of the equipment.
A blade structure including a sliding counterweight and a sliding extension plate was designed. It uses centrifugal force to maintain a standard spacing, automatically clears stuck materials, and reduces wear and vibration through wear-resistant stirring blades and buffer rubber pads, making maintenance convenient.
It enables automatic clearing of stuck materials, reduces manual operation steps, lowers labor burden, improves equipment efficiency, reduces wear and vibration, and enhances safety.
Smart Images
Figure CN224331913U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of mixer accessories, and more specifically, it relates to a wear-resistant blade for mixing equipment. Background Technology
[0002] To improve the wear resistance of blades, most existing mixer blades are coated with tungsten carbide coating through processes such as thermal spraying. This increases the hardness and wear resistance of the blade surface, effectively resisting the wear of materials on the blades and extending their service life. A certain gap needs to be maintained between the blade tip and the inner wall of the mixing equipment to avoid friction between the blade and the inner wall of the mixing equipment.
[0003] For example, CN215610651U discloses a mixer blade, which includes a tough matrix, a wear-resistant part, and a wear-resistant layer. The tough matrix has multiple forming holes, and the wear-resistant part is disposed in the forming holes. The wear-resistant layer covers the surface of the tough matrix and the wear-resistant part. It can be seen that the wear-resistant part and the wear-resistant layer have a certain hardness, that is, they have good wear resistance, while the tough matrix has a certain toughness. The toughness is used to compensate for the brittleness of the wear-resistant part and the wear-resistant layer, so as to achieve complementary advantages. This results in the mixer blade having high overall impact toughness, solving the problem of fracture in application, and also having good resistance to abrasive wear.
[0004] Based on the above, when materials clump together or the particles are too large, they are easily stuck between the blades and the inner wall of the mixing equipment. After mixing, the staff needs to manually clean the material in the gaps, which is inconvenient and results in a heavy workload for the staff. It also takes a long time and affects the performance of the mixing equipment. Utility Model Content
[0005] To address the aforementioned technical problems, this utility model provides wear-resistant blades for agitators. This solves the problem that when materials clump together or have excessively large particles, they easily get stuck between the blades and the inner wall of the agitator. After agitation, workers need to manually clean the material from the gaps, which is inconvenient, leads to a heavy workload for workers, and takes a long time, thus affecting the effectiveness of the agitator.
[0006] The purpose and function of this utility model for a wear-resistant blade for a mixing device are achieved by the following specific technical means:
[0007] A wear-resistant impeller for a mixing device includes an impeller mounting shaft, a positioning connecting piece, a buffer rubber pad, a wear-resistant mixing blade, a connecting structure, a gap cleaning structure, a sliding counterweight, and a sliding extension plate. The positioning connecting piece is located outside the impeller mounting shaft. Two buffer rubber pads are provided, each covering the upper and lower sides of the positioning connecting piece. Two wear-resistant mixing blades are provided, each covering the outer side of the two buffer rubber pads. The connecting structure is located outside the impeller mounting shaft. The sliding counterweight is slidably connected to the inner side of the positioning connecting piece. The sliding extension plate is slidably connected to the right side of the two wear-resistant mixing blades. The gap cleaning structure is located to the right side of the positioning connecting piece.
[0008] Furthermore, the connection structure includes a limiting connection socket and a position limiting plug; multiple limiting connection sockets are provided, and the multiple limiting connection sockets are arranged in a circumferential array on the outer side of the blade mounting shaft; the position limiting plug is inserted into the inner side of the limiting connection socket, and the position limiting plug is fixedly connected to the positioning connection piece.
[0009] Furthermore, the connection structure also includes a limiting connection plate and a first connecting bolt; the limiting connection plate is fixedly connected to the outside of the position limiting insert; multiple first connecting bolts are provided, and the limiting connection plate is fixedly connected to the blade mounting shaft through multiple first connecting bolts.
[0010] Furthermore, the connection structure also includes a limiting connection slot, a second connecting bolt, and a tapered alloy strip; two limiting connection slots are provided, both of which are located on the left side of the positioning connecting piece; two second connecting bolts are provided, each passing through the buffer rubber pad, the wear-resistant stirring piece, and the two limiting connection slots respectively, and then threaded with a nut; two tapered alloy strips are provided, and the two tapered alloy strips are bolted to the front and rear sides of the two wear-resistant stirring pieces.
[0011] Furthermore, the gap cleaning structure includes a first reset elastic element and a guide connecting plate; multiple first reset elastic elements are provided, and the sliding counterweight is elastically connected to the positioning connecting piece through multiple first reset elastic elements; the guide connecting plate is fixedly connected to the inner side of the sliding extension plate, and the guide connecting plate is slidably connected to the positioning connecting piece.
[0012] Furthermore, the gap cleaning structure also includes a position limiting plate and a second reset elastic element; two position limiting plates are provided, and the two position limiting plates are respectively fixedly connected to the upper and lower sides of the sliding extension plate; multiple second reset elastic elements are provided, and the two position limiting plates are elastically connected to the wear-resistant stirring plate through multiple second reset elastic elements.
[0013] Compared with the prior art, the present invention has the following beneficial effects:
[0014] This invention utilizes the centrifugal force of the sliding counterweight to push the sliding extension plate closer to the inner wall of the mixing equipment during blade rotation, maintaining a standard distance to prevent material stagnation. When the machine stops, the sliding extension plate automatically resets, widening the gap and allowing stuck materials to fall off automatically. This avoids the need for manual cleaning of materials stuck in the gap, reducing operational steps, lowering the workload of workers, saving significant time, and improving the efficiency of the mixing equipment. The conical alloy strip on the outer side of the wear-resistant mixing blade reduces the resistance encountered during blade operation, while also minimizing impact wear on the blade. The buffer rubber pad absorbs some impact energy, reducing blade vibration. The wear-resistant mixing blade can be disassembled and replaced individually after wear, facilitating blade maintenance. The sliding extension plate moves backward to avoid hard materials, preventing blade jamming and equipment damage, thus improving the safety of the mixing equipment during operation. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model.
[0016] Figure 2 This is a schematic diagram of the limiting connection socket of this utility model.
[0017] Figure 3 This is a schematic diagram showing the positions of the position limiting plug and the limiting connecting plate of this utility model.
[0018] Figure 4 This is a schematic diagram showing the disassembled structure of the buffer rubber pad, wear-resistant stirring plate, and sliding extension plate of this utility model.
[0019] Figure 5 This is a schematic diagram showing the disassembled structure of the positioning connecting piece and the sliding counterweight block of this utility model.
[0020] In the diagram, the correspondence between component names and drawing numbers is as follows:
[0021] 1. Blade mounting shaft; 101. Limiting connection socket; 2. Positioning connection piece; 201. Position limiting block; 202. Limiting connection plate; 203. Limiting connection slot; 204. First connecting bolt; 3. Buffer rubber pad; 4. Wear-resistant stirring plate; 401. Second connecting bolt; 402. Conical alloy strip; 5. Sliding counterweight; 501. First reset elastic element; 6. Sliding extension plate; 601. Position limiting plate; 602. Second reset elastic element; 603. Guide connecting plate. Detailed Implementation
[0022] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples.
[0023] Example 1:
[0024] As attached Figure 1 To be continued Figure 5 As shown:
[0025] This utility model provides a wear-resistant impeller for a mixing device, comprising an impeller mounting shaft 1, a positioning connecting piece 2, a buffer rubber pad 3, a wear-resistant mixing impeller 4, a connecting structure, a sliding counterweight 5, and a sliding extension plate 6; the positioning connecting piece 2 is located on the outside of the impeller mounting shaft 1; two buffer rubber pads 3 are provided, each covering the upper and lower sides of the positioning connecting piece 2 respectively; two wear-resistant mixing impellers 4 are provided, each covering the outside of the two buffer rubber pads 3 respectively; the connecting structure is located on the outside of the impeller mounting shaft 1; the sliding counterweight 5 is slidably connected to the inside of the positioning connecting piece 2; and the sliding extension plate 6 is slidably connected to the right side of the two wear-resistant mixing impellers 4.
[0026] The connection structure includes a limiting connection socket 101 and a position limiting plug 201. Multiple limiting connection sockets 101 are provided, and multiple limiting connection sockets 101 are arranged in a circumferential array on the outside of the blade mounting shaft 1. The position limiting plug 201 is inserted into the inside of the limiting connection socket 101, and the position limiting plug 201 is fixedly connected to the positioning connecting piece 2.
[0027] The connection structure also includes a limiting connection plate 202 and a first connecting bolt 204; the limiting connection plate 202 is fixedly connected to the outside of the position limiting plug 201; multiple first connecting bolts 204 are provided, and the limiting connection plate 202 is fixedly connected to the blade mounting shaft 1 through multiple first connecting bolts 204.
[0028] The connecting structure also includes a limiting connecting slot 203, a second connecting bolt 401, and a tapered alloy strip 402. There are two limiting connecting slots 203, both of which are located on the left side of the positioning connecting piece 2. There are two second connecting bolts 401, which pass through the buffer rubber pad 3, the wear-resistant stirring piece 4, and the two limiting connecting slots 203 respectively, and are threaded with nuts. There are two tapered alloy strips 402, which are bolted to the front and rear sides of the two wear-resistant stirring pieces 4.
[0029] The specific usage and function of this embodiment are as follows: When installing the positioning connecting piece 2 on the blade mounting shaft 1, first insert the position limiting plug 201 into the limiting connecting plug 101. At this time, the limiting connecting plate 202 and the blade mounting shaft 1 are in contact with each other. Tighten the first connecting bolt 204 to fix the positioning connecting piece 2 and the blade mounting shaft 1 together. When stirring the material, the tapered alloy strip 402 on the outside of the wear-resistant stirring piece 4 will reduce the resistance encountered by the blade during rotation. When the blade is subjected to a large impact force, the buffer rubber pad 3 will buffer the impact force on the blade. After the wear-resistant stirring piece 4 is worn, the second connecting bolt 401 can be removed to remove the wear-resistant stirring piece 4. After replacing the new wear-resistant stirring piece 4, the second connecting bolt 401 is passed through the buffer rubber pad 3, the limiting connecting slot 203 and the wear-resistant stirring piece 4 and fixed with a nut to complete the installation of the wear-resistant stirring piece 4. The limiting connecting slot 203 allows the wear-resistant stirring piece 4 to slide slightly after the blade is impacted.
[0030] Example 2:
[0031] As attached Figure 3 To be continued Figure 5 As shown:
[0032] Based on Embodiment 1, a gap cleaning structure is also included; the gap cleaning structure is located on the right side of the positioning connecting piece 2.
[0033] The gap cleaning structure includes a first reset elastic element 501 and a guide connecting plate 603. Multiple first reset elastic elements 501 are provided, and the sliding counterweight 5 is elastically connected to the positioning connecting piece 2 through multiple first reset elastic elements 501. The guide connecting plate 603 is fixedly connected to the inner side of the sliding extension plate 6, and the guide connecting plate 603 is slidably connected to the positioning connecting piece 2.
[0034] The gap cleaning structure also includes a position limiting plate 601 and a second reset elastic element 602. There are two position limiting plates 601, which are fixedly connected to the upper and lower sides of the sliding extension plate 6 respectively. There are multiple second reset elastic elements 602, and the two position limiting plates 601 are elastically connected to the wear-resistant stirring plate 4 through multiple second reset elastic elements 602.
[0035] The specific usage and function of this embodiment are as follows: When the blades begin to rotate, the sliding counterweight 5 slides outward under the action of centrifugal force, stretching the first reset elastic element 501, causing the sliding counterweight 5 to press the guide connecting plate 603 and the sliding extension plate 6 outward, bringing the sliding extension plate 6 close to the inner wall of the mixing equipment. At this time, the sliding extension plate 6 and the inner wall of the mixing equipment maintain a standard distance. The second reset elastic element 602 is stretched. When the equipment stops, the sliding counterweight 5 loses centrifugal force, and the restoring force of the first reset elastic element 501 will pull the sliding counterweight 5 back to its original position. The sliding extension plate 6 returns to its original position under the action of the restoring force of the second reset elastic element 602. The position limiting plate 601 can limit the movement distance of the sliding extension plate 6. At this time, the gap between the sliding extension plate 6 and the inner wall of the mixing equipment becomes larger, and the material stuck in the gap will automatically fall off after losing pressure.
[0036] The following points should be noted in this article:
[0037] 1. The accompanying drawings of this embodiment only involve the structures involved in this embodiment; other structures can refer to the general design.
[0038] 2. Where there is no conflict, this embodiment and the features in the embodiment can be combined with each other to obtain new embodiments.
[0039] The above are merely specific implementations of this embodiment, but the protection scope of this embodiment is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this embodiment should be included within the protection scope of this embodiment. Therefore, the protection scope of this embodiment should be determined by the protection scope of the claims.
Claims
1. A wear-resistant impeller for a mixing device, comprising an impeller mounting shaft (1), a positioning connecting piece (2), a buffer rubber pad (3), a wear-resistant mixing blade (4), a connecting structure, a gap cleaning structure, a sliding counterweight (5), and a sliding extension plate (6); wherein the positioning connecting piece (2) is located outside the impeller mounting shaft (1); characterized in that: Two buffer rubber pads (3) are provided, and the two buffer rubber pads (3) respectively cover the upper and lower sides of the positioning connecting piece (2); two wear-resistant stirring pieces (4) are provided, and the two wear-resistant stirring pieces (4) respectively cover the outer side of the two buffer rubber pads (3); the connecting structure is provided on the outer side of the blade mounting shaft (1); the sliding counterweight (5) is slidably connected to the inner side of the positioning connecting piece (2); the sliding extension plate (6) is slidably connected to the right side of the two wear-resistant stirring pieces (4); the gap cleaning structure is provided on the right side of the positioning connecting piece (2).
2. The wear-resistant blade for a mixing device as described in claim 1, characterized in that: The connection structure includes a limiting connection socket (101) and a position limiting plug (201); multiple limiting connection sockets (101) are provided, and multiple limiting connection sockets (101) are arranged in a circumferential array on the outside of the blade mounting shaft (1); the position limiting plug (201) is inserted into the inside of the limiting connection socket (101), and the position limiting plug (201) is fixedly connected to the positioning connecting piece (2).
3. The wear-resistant blade for a mixing device as described in claim 2, characterized in that: The connection structure further includes a limiting connection plate (202) and a first connecting bolt (204); the limiting connection plate (202) is fixedly connected to the outside of the position limiting plug (201); multiple first connecting bolts (204) are provided, and the limiting connection plate (202) is fixedly connected to the blade mounting shaft (1) through multiple first connecting bolts (204).
4. The wear-resistant blade for a mixing device as described in claim 3, characterized in that: The connection structure also includes a limiting connection slot (203), a second connecting bolt (401), and a tapered alloy strip (402); there are two limiting connection slots (203), both of which are located on the left side of the positioning connecting piece (2); there are two second connecting bolts (401), which pass through the buffer rubber pad (3), the wear-resistant stirring piece (4), and the two limiting connection slots (203) respectively, and are threaded with nuts; there are two tapered alloy strips (402), which are bolted to the front and rear sides of the two wear-resistant stirring pieces (4).
5. The wear-resistant blade for a mixing device as described in claim 1, characterized in that: The gap cleaning structure includes a first reset elastic element (501) and a guide connecting plate (603); multiple first reset elastic elements (501) are provided, and the sliding counterweight (5) is elastically connected to the positioning connecting piece (2) through multiple first reset elastic elements (501); the guide connecting plate (603) is fixedly connected to the inner side of the sliding extension plate (6), and the guide connecting plate (603) is slidably connected to the positioning connecting piece (2).
6. The wear-resistant blade for a mixing device as described in claim 5, characterized in that: The gap cleaning structure further includes a position limiting plate (601) and a second reset elastic element (602); there are two position limiting plates (601), which are fixedly connected to the upper and lower sides of the sliding extension plate (6); there are multiple second reset elastic elements (602), and the two position limiting plates (601) are elastically connected to the wear-resistant stirring plate (4) through multiple second reset elastic elements (602).