Wear-resistant blade

Abstract

The utility model discloses a wear-resistant blade which comprises a blade body, the blade body comprises a substrate, a wear-resistant sheet is pasted on the substrate, the back face of the wear-resistant sheet is provided with an outer side barrier strip close to the outer side of an impeller, and the back face of the wear-resistant sheet is further provided with an inner side barrier strip close to the inner side of the impeller. A clamping groove is formed by the outer side blocking strip, the inner side blocking strip and the back face of the wear-resisting piece, the substrate is clamped in the clamping groove, and the front face of the wear-resisting piece faces the rotating direction of the impeller. The substrate is clamped in the clamping groove, so that the bonding area of the substrate and the wear-resistant sheet is increased, the problem that the wear-resistant sheet falls off is effectively solved, and the enterprise cost is saved.

Description

Technical Field

[0001] The utility model relates to a wear-resistant blade. Background Art

[0002] In the prior art, for materials with high requirements for whiteness and purity, polymer material impellers, patch impellers or integral ceramic impellers are usually used as crushing and grading equipment, such as grading wheels. However, these materials generally have some problems: polymer impellers (such as nylon impellers) are not wear-resistant and have a short service life. The cost of integral ceramic impellers is too high, the price can reach tens of thousands of yuan, and the production cycle is long, which is not suitable for mass production. The design concept of the patch impeller is to use carbon steel or stainless steel for the upper and lower blades and sleeves of the impeller, and the surface of the blade in contact with the material is protected by a patch. In the prior art, patches are mostly made of alumina. Due to its high cost-effectiveness, the patch impeller is used in large quantities. However, due to the high-speed rotation of the impeller, the patch is easy to fall off, resulting in the destruction of the dynamic balance of the impeller. It is necessary to stop the machine to disassemble the grading impeller, replace the fallen patch, and install it on the equipment after dynamic balancing again, which will reduce the operation rate of the equipment. Utility Model Content

[0003] In order to make up for the above deficiencies, the utility model provides a wear-resistant blade that can effectively avoid falling off and ensure the normal operation of the equipment.

[0004] The technical solution of the utility model is: a wear-resistant blade, comprising a blade body, the blade body comprising a base sheet, a wear-resistant sheet pasted on the base sheet, the back of the wear-resistant sheet is provided with an outer baffle adjacent to the outer side of the impeller, the back of the wear-resistant sheet is also provided with an inner baffle adjacent to the inner side of the impeller, the outer baffle, the inner baffle and the back of the wear-resistant sheet form a slot, the base sheet is stuck in the slot, and the front of the wear-resistant sheet faces the rotation direction of the impeller.

[0005] The outer baffle, the inner baffle and the wear-resistant sheet are an integrated structure.

[0006] The width of the outer baffle is greater than the width of the inner baffle.

[0007] The depth of the card slot gradually increases from the inside to the outside.

[0008] The front side of the substrate has an inclined surface matched with the card slot.

[0009] The inner baffles are divided into multiple sections, and gaps are provided between adjacent inner baffles.

[0010] The substrate is provided with a protrusion which is inserted into the gap.

[0011] The wear-resistant sheet is an aluminum oxide sheet.

[0012] An inner snap-fitting protrusion is arranged at the bottom of the snap-fitting slot, and an inner snap-fitting slot cooperating with the inner snap-fitting protrusion is arranged on the base sheet.

[0013] End gaps are arranged between the two ends of the inner clamping protrusion and the outer stop and the inner stop strip.

[0014] Due to the adoption of the above technical scheme, a wear-resistant blade includes a blade body, the blade body includes a base sheet, a wear-resistant sheet is pasted on the base sheet, the back of the wear-resistant sheet is provided with an outer baffle adjacent to the outer side of the impeller, the back of the wear-resistant sheet is also provided with an inner baffle adjacent to the inner side of the impeller, the outer baffle, the inner baffle and the back of the wear-resistant sheet form a slot, the base sheet is stuck in the slot, and the front of the wear-resistant sheet faces the rotation direction of the impeller; the base sheet is stuck in the slot, which increases the bonding area between the base sheet and the wear-resistant sheet, effectively solves the problem of the wear-resistant sheet falling off, and saves enterprise costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The following is a brief introduction to the drawings required for use in the embodiments or descriptions of the prior art. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0016] Figure 1 It is a schematic diagram of the structure of the wear-resistant sheet in the first embodiment of the utility model;

[0017] Figure 2 It is a cross-sectional view of the wear-resistant sheet in the first embodiment of the utility model;

[0018] Figure 3 This is a reference diagram of the use state of the blade body in the first embodiment of the utility model;

[0019] Figure 4 It is a cross-sectional view of the wear-resistant sheet in the second embodiment of the utility model;

[0020] Figure 5 is a cross-sectional view of the substrate in the second embodiment of the utility model;

[0021] Figure 6 It is a structural schematic diagram of the third embodiment of the utility model;

[0022] Figure 7 It is a schematic diagram of the structure of the wear-resistant sheet in the fourth embodiment of the utility model;

[0023] Figure 8 It is a schematic structural diagram of the substrate in the fourth embodiment of the utility model. DETAILED DESCRIPTION

[0024] Embodiment 1: Figures 1 to 3As shown, a wear-resistant blade includes a blade body, the blade body includes a substrate 1, a wear-resistant sheet 2 is pasted on the substrate 1, the back of the wear-resistant sheet 2 is provided with an outer baffle 4 adjacent to the outer side of the impeller 3, the back of the wear-resistant sheet 2 is also provided with an inner baffle 5 adjacent to the inner side of the impeller 3, the outer baffle 4, the inner baffle 5 and the back of the wear-resistant sheet 2 form a slot 6, the substrate 1 is stuck in the slot 6, and the front of the wear-resistant sheet 2 faces the rotation direction of the impeller. Preferably, the wear-resistant sheet 2 is an aluminum oxide sheet. The substrate is stuck in the slot, which increases the bonding area between the substrate and the wear-resistant sheet. After this technical upgrade and transformation. The alumina sheet patch impeller can successfully operate at 50Hz once before leaving the factory, saving corporate costs and effectively solving the problem of wear-resistant sheet falling off.

[0025] Preferably, the outer baffle 4, the inner baffle 5 and the wear-resistant sheet 2 are an integrated structure.

[0026] The width of the outer baffle 4 is greater than the width of the inner baffle 2. Thus, the weight of the outer baffle 4 is greater than the weight of the inner baffle 2. When rotating, the substrate is more closely attached to the inner baffle under the inertia of the outer baffle 4, further preventing the substrate from falling off. The outer baffle 4 is close to the outside of the impeller 3, and the inner baffle 5 is close to the inside of the impeller 3.

[0027] Embodiment 2:

[0028] The structure of the second embodiment is basically the same as that of the first embodiment, except that: Figure 4 and Figure 5 As shown, the depth of the slot 6 gradually increases from the inside to the outside. The inside refers to the side close to the inside of the impeller 3, that is, the side close to the inner baffle 5, and the outside refers to the side close to the outside of the impeller 3. The depth of the slot 6 gradually increases from the inside to the outside, further increasing the bonding area between the base sheet 1 and the wear-resistant sheet 2, ensuring that the wear-resistant sheet 2 is firmly installed.

[0029] Correspondingly, the front side of the substrate 1 has an inclined surface 7 that matches the slot.

[0030] Embodiment three:

[0031] The structure of the third embodiment is basically the same as that of the first embodiment, except that: Figure 6 As shown, the bottom of the card slot 6 is provided with an inner card protrusion 11, and the base sheet 1 is provided with an inner card slot 12 that cooperates with the inner card protrusion 11. The inner card protrusion 11 and the inner card slot cooperate with each other to play a role of limiting and connecting, so that the installation and fixation of the base sheet and the wear-resistant sheet are more firm and reliable.

[0032] In order to further improve the strength of installation and fixing, end gaps are provided between the two ends of the inner clamping protrusion 11 and the outer baffle 4 and the inner baffle strip 5 .

[0033] Embodiment 4:

[0034] The structure of the fourth embodiment is basically the same as that of the first embodiment, except that: Figure 7 and Figure 8 As shown, the inner baffle 5 is multi-segmented, and gaps 8 are provided between adjacent inner baffles. The substrate 1 is provided with protrusions 9 that are inserted into the gaps 8. Reducing the use of inner baffles is conducive to reducing costs.

[0035] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model.

[0036] Under the premise of the scope of protection, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A wear-resistant blade, characterized in that: The blade body comprises a base sheet, a wear-resistant sheet is pasted on the base sheet, an outer baffle adjacent to the outer side of the impeller is arranged on the back side of the wear-resistant sheet, an inner baffle adjacent to the inner side of the impeller is arranged on the back side of the wear-resistant sheet, a slot is formed by the outer baffle, the inner baffle and the back side of the wear-resistant sheet, the base sheet is stuck in the slot, and the front side of the wear-resistant sheet faces the rotation direction of the impeller.

2. The wear-resistant blade according to claim 1, characterized in that: The outer baffle, the inner baffle and the wear-resistant sheet are an integrated structure.

3. The wear-resistant blade according to claim 1, characterized in that: The width of the outer baffle is greater than the width of the inner baffle.

4. The wear-resistant blade according to claim 1, characterized in that: The depth of the card slot gradually increases from the inside to the outside.

5. The wear-resistant blade according to claim 4, characterized in that: The front side of the substrate has an inclined surface matched with the card slot.

6. The wear-resistant blade according to claim 1, characterized in that: The inner baffles are divided into multiple sections, and gaps are provided between adjacent inner baffles.

7. The wear-resistant blade according to claim 6, characterized in that: The substrate is provided with a protrusion which is inserted into the gap.

8. The wear-resistant blade according to claim 1, characterized in that: The wear-resistant sheet is an aluminum oxide sheet.

9. The wear-resistant blade according to claim 1, characterized in that: An inner snap-fitting protrusion is arranged at the bottom of the snap-fitting slot, and an inner snap-fitting slot cooperating with the inner snap-fitting protrusion is arranged on the base sheet.

10. The wear-resistant blade according to claim 9, characterized in that: End gaps are arranged between the two ends of the inner clamping protrusion and the outer stop and the inner stop strip.

Images