Detachable and replaceable wear-resistant impeller

Abstract

The utility model discloses a detachable and replaceable wear-resistant impeller, a whole blade is divided into a blade body, an inlet replacement blade and an outlet replacement blade, and the inlet replacement blade and the outlet replacement blade are detachably arranged at the inlet end and the outlet end of the blade body respectively, so that the blade is simple in structure and convenient to use. The inlet replacement blade and the outlet replacement blade can be detached and replaced from the blade body, and in the working process of the slurry pump, abrasion of the blades mainly occurs near the inlet and the outlet, so that only the inlet and the outlet of the blades need to be replaced, namely the inlet replacement blade and the outlet replacement blade are detached and replaced. Therefore, the cost for replacing the integral blade or the integral impeller is reduced, and the service life of the impeller can be prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of slurry pumps, in particular to a detachable and replaceable wear-resistant impeller. Background Art

[0002] Slurry pumps are widely used in the industrial and mining fields, mainly transporting solid-liquid two-phase flow media containing high-concentration solid particles such as mud. The impeller is the main flow component of the slurry pump. It is subject to long-term impact of gravel during operation, which easily causes wear of the impeller components, seriously affecting the safe and stable operation of the pump. Therefore, existing slurry pumps usually frequently maintain and replace the impeller as a whole, resulting in a high cost of use of existing slurry pumps.

[0003] A Chinese patent with publication number CN 220101604 U discloses a detachable blade-type ceramic auxiliary impeller of a slurry pump, comprising an impeller cover plate and blades, wherein the impeller cover plate comprises a cover plate metal frame and a ceramic cover plate attached to the cover plate metal frame on the end face for mounting the blades; the blades are mounted on the ceramic cover plate by bolts, and the blades are separated from the impeller cover plate to form a detachable blade design and fixed to the impeller cover plate by bolt connection, so that when only a single blade is damaged, the entire auxiliary impeller does not need to be replaced, thereby saving a lot of cost.

[0004] However, when the detachable blade provided by the above solution is used, the entire blade needs to be removed from the impeller cover plate, and then a new blade needs to be installed on the impeller cover plate. The maintenance and replacement costs of the impeller blades are also high, and the installation and removal are cumbersome.

[0005] Therefore, how to effectively reduce the maintenance cost of the impeller of the slurry pump, make the impeller blade structure simple, easy to maintain and replace, and increase the service life of the impeller has become an urgent problem to be solved in this field. Utility Model Content

[0006] In view of the defects of the prior art, the purpose of the utility model is to provide a detachable and replaceable wear-resistant impeller with a simple structure and convenient maintenance and replacement.

[0007] In order to achieve the above-mentioned purpose, the utility model provides a detachable and replaceable wear-resistant impeller, comprising an impeller cover plate,

[0008] connecting the blades of the impeller cover plate, and

[0009] An outlet baffle is arranged at the outlet of the blade,

[0010] The blade comprises a blade body, an inlet replacement blade detachably arranged at an inlet end of the blade body, and an outlet replacement blade detachably arranged at an outlet end of the blade body.

[0011] Furthermore, the blade body and the impeller cover plate are an integrated structure.

[0012] Furthermore, the connection end of the inlet replacement blade is connected to the inlet end of the blade body by a snap-fit ​​connection, and the inlet replacement blade is detachably connected to the impeller cover plate.

[0013] Furthermore, the inlet replacement blade is connected to the impeller cover plate via a first fixing screw.

[0014] Furthermore, the first end of the outlet replacement blade is connected to the outlet end of the blade body through a snap-fit ​​connection, and the second end of the outlet replacement blade is connected to the outlet baffle through a snap-fit ​​connection.

[0015] Furthermore, the outlet replacement blade is detachably connected to the impeller cover plate.

[0016] Furthermore, the outlet replacement blade is connected to the impeller cover plate via a second fixing screw.

[0017] Furthermore, the outlet baffle is connected to the impeller cover plate via a third fixing screw.

[0018] The utility model provides a detachable and replaceable wear-resistant impeller, which divides the blade as a whole into a blade body, an inlet replacement blade and an outlet replacement blade. The inlet replacement blade and the outlet replacement blade are detachably arranged at the inlet end and the outlet end of the blade body respectively, so that the blade structure is simple, and the inlet replacement blade and the outlet replacement blade can be removed and replaced from the blade body. Because the wear of the blade mainly occurs near the inlet and the outlet during the operation of the slurry pump, it is only necessary to replace the inlet and the outlet of the blade, that is, to remove and replace the inlet replacement blade and the outlet replacement blade, thereby reducing the cost of replacing the entire blade or replacing the entire impeller, and can increase the service life of the impeller. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention is further described below in conjunction with the accompanying drawings and specific implementations.

[0020] Figure 1 A schematic diagram of the overall structure of a detachable and replaceable anti-wear impeller provided by the utility model;

[0021] Figure 2 A schematic side view of the structure of a detachable and replaceable anti-wear impeller provided by the utility model;

[0022] Figure 3 It is a schematic diagram of the installation structure of the inlet replacement blade and the outlet replacement blade in the utility model;

[0023] Figure 4It is a schematic diagram of the matching structure of the imported replacement blade and the blade body in the utility model;

[0024] Figure 5 It is a schematic diagram of the matching structure of the outlet replacement blade and the blade body in the utility model;

[0025] Figure 6 This is a schematic diagram of the installation of the outlet baffle in the utility model;

[0026] Reference numerals:

[0027] 1. Impeller cover;

[0028] 2. Blade; 21. Blade body; 22. Inlet end; 221. First convex tooth; 23. Outlet end; 231. Second convex tooth;

[0029] 3. Imported replacement blade; 31. Connecting end; 311. First slot; 32. First fixing screw;

[0030] 4. outlet replacement blade; 41. first end; 411. second slot; 42. second end; 421. third protruding tooth; 43. second fixing screw;

[0031] 5. Exit baffle; 51. Third slot; 52. Third fixing screw. DETAILED DESCRIPTION

[0032] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below with reference to specific illustrations.

[0033] See also Figure 1 and Figure 2 , which shows an example of a detachable and replaceable wear-resistant impeller provided by the utility model.

[0034] As can be seen from the figure, the detachable and replaceable wear-resistant impeller of this example mainly includes an impeller cover plate 1, blades 2, inlet replacement blades 3, outlet replacement blades 4 and an outlet baffle 5.

[0035] The blade 2 is connected to the impeller cover plate 1, and is configured to be composed of a blade body 21, an inlet replacement blade 3 and an outlet replacement blade 4 that are matched and connected to each other. The inlet replacement blade 3 and the outlet replacement blade 4 are respectively detachably arranged at the inlet end 22 and the outlet end 23 of the blade body 21, and the outlet baffle 5 is detachably connected to the outlet replacement blade 4, so that during the operation of the slurry pump, the wear of the blade 2 mainly occurs near the inlet and the outlet, and the inlet replacement blade 3 at the inlet of the blade 2 and the outlet replacement blade 4 at the outlet can be disassembled and replaced, thereby reducing the cost of replacing the entire blade or the entire impeller, and the structure is simple and easy to disassemble and assemble.

[0036] Specifically, combined Figure 3 The blade body 21 in the blade 2 and the impeller cover plate 1 are preferably an integrated structure, so that when the inlet replacement blade 3 and the outlet replacement blade 4 are connected to the blade body 21, it is convenient to form a split structure that is interconnected and coordinated with the impeller cover plate 1, so that the blade body 21, the inlet replacement blade 3 and the outlet replacement blade 4 are interconnected and coordinated to form an integral blade 2, and are stably connected to the impeller cover plate 1, thereby realizing the normal operation of the blade 2.

[0037] Furthermore, the inlet replacement blade 3 and the outlet replacement blade 4 are respectively configured to have the same structural shape as the inlet and outlet of the existing blade, and are adapted to the two ends of the blade body 21, so that when the inlet replacement blade 3 and the outlet replacement blade 4 are respectively connected to the inlet end 22 and the outlet end 23 of the blade body 21, the circumferential surfaces of the inlet replacement blade 3 and the outlet replacement blade 4 can respectively smoothly match the circumferential surfaces of the inlet end 22 and the outlet end 23 of the blade body 21, so that the blade body 21, the inlet replacement blade 3 and the outlet replacement blade 4 can cooperate to form the complete structural shape of the existing blade, so that the constructed blade 2 can work normally and stably.

[0038] Furthermore, combined with Figure 4 The inlet replacement blade 3 is detachably connected to the inlet end 22 of the blade body 21, so as to be easily removed and replaced from the blade body 21. A first card slot 311 is provided on the connection end 31 that matches the blade body 21, and a first convex tooth 221 that matches the first card slot 311 is provided on the inlet end 22 of the blade body 21, so that when the connection end 31 of the inlet replacement blade 3 is connected to the inlet end 22 of the blade body 21, the first convex tooth 221 of the inlet end 22 can be snapped into the first card slot 311 of the connection end 31, so that the inlet replacement blade 3 is stably connected to the inlet end 22 of the blade body 21 through the buckle.

[0039] Here, there is no limitation on the setting manner of the first convex tooth and the first groove. The above is just one manner of this example. In some embodiments, a first convex tooth is provided on the connecting end 31 that cooperates with the blade body 21, and a first groove that matches the first convex tooth is provided on the inlet end 22 of the blade body 21, so that when the connecting end 31 of the inlet replacement blade 3 is connected to the inlet end 22 of the blade body 21, the first convex tooth of the connecting end 31 can be snapped into the first groove of the inlet end 22, so that the inlet replacement blade 3 is stably connected to the inlet end 22 of the blade body 21 through the snap.

[0040] In order to enable the imported replacement blade 3 to rotate stably together with the blade body 21, the imported replacement blade 3 is detachably connected to the impeller cover plate 1. Specifically, after the imported replacement blade 3 is connected to the blade body 21, the two sides of the imported replacement blade 3 that cooperate with the impeller cover plate 1 abut against the impeller cover plate 1 and are connected by a first fixing screw 32, so as to stably connect the imported replacement blade 3, the blade body 21 and the impeller cover plate 1 so that they can rotate stably together.

[0041] When the slurry pump is working, the inlet replacement blade 3 is worn out. The inlet replacement blade 3 and the impeller cover plate 1 can be separated by simply removing the first fixing screw 32 from the inlet replacement blade 3 and the impeller cover plate 1. Then, the first convex tooth 221 of the inlet end 22 of the blade body 21 is pulled out from the first groove 311 of the connecting end 31 of the inlet replacement blade 3, and the inlet replacement blade 3 can be removed from the blade body 21. The inlet replacement blade 3 can be maintained and replaced. The structure is simple and the disassembly and assembly are convenient.

[0042] In conjunction with Figure 5 The outlet end 23 of the blade body 21 is provided with a detachable outlet replacement blade 4, and the first end 41 of the outlet replacement blade 4 is detachably connected to the outlet end 23 of the blade body 21, so as to be easily disassembled and replaced from the blade body 21, and the second end 42 of the outlet replacement blade 4 is detachably connected to the outlet baffle 5, so that the outlet baffle 5 can adjust the flow at the outlet, and the outlet replacement blade 4 can be disassembled and replaced after the outlet baffle 5 is disassembled.

[0043] Specifically, a second card slot 411 is provided on the first end 41 of the outlet replacement blade 4 that cooperates with the blade body 21, and a second convex tooth 231 that matches the second card slot 411 is provided on the outlet end 23 of the blade body 21 to cooperate with it, so that when the first end 41 of the outlet replacement blade 4 is connected to the outlet end 23 of the blade body 21, the second convex tooth 231 of the outlet end 23 can be snapped into the second card slot 411 of the first end 41, so that the outlet replacement blade 4 is stably connected to the outlet end 23 of the blade body 21 through the snap.

[0044] Here, there is no limitation on the setting method of the second convex tooth and the second groove. The above is just one method of this example. In some embodiments, the outlet replacement blade 4 is provided with a second convex tooth on the first end 41 that cooperates with the blade body 21, and the outlet end 23 of the blade body 21 is provided with a second groove that matches the second convex tooth, so that when the first end 41 of the outlet replacement blade 4 is connected to the outlet end 23 of the blade body 21, the second convex tooth of the first end 41 can be snapped into the second groove of the outlet end 23, so that the outlet replacement blade 4 is stably connected to the outlet end 23 of the blade body 21 through the snap.

[0045] In order to enable the outlet replacement blade 4 to rotate stably together with the blade body 21, the outlet replacement blade 4 is detachably connected to the impeller cover plate 1. Specifically, after the outlet replacement blade 4 is connected to the blade body 21, the two sides of the outlet replacement blade 4 that cooperate with the impeller cover plate 1 abut against the impeller cover plate 1 and are connected by a second fixing screw 43 to stably connect the outlet replacement blade 4, the blade body 21 and the impeller cover plate 1 so that they can rotate stably together.

[0046] Thus, the inlet end 22 and the outlet end 23 of the blade body 21 are respectively connected to the inlet replacement blade 3 and the outlet replacement blade 4 to form a complete blade 2. At the same time, the inlet replacement blade 3 and the outlet replacement blade 4 are respectively stably connected to the impeller cover plate 1 so that the constructed blade 2 can work normally and stably.

[0047] Furthermore, the second end 42 of the outlet replacement blade 4 is detachably connected to the outlet baffle 5, so that the outlet baffle 5 can adjust the flow at the outlet and the outlet replacement blade 4 can be disassembled and replaced after the outlet baffle 5 is disassembled.

[0048] Specifically, a third convex tooth 421 is provided on the second end 42 of the outlet replacement blade 4 that cooperates with the outlet baffle 5, and a third card groove 51 adapted to the third convex tooth 421 is provided on the end surface of the outlet baffle 5 that cooperates with the outlet replacement blade 4, so that when the second end 42 of the outlet replacement blade 4 is connected to the outlet baffle 5, the third convex tooth 421 on the second end 42 can be snapped into the third card groove 51 of the outlet baffle 5, so that the outlet replacement blade 4 and the outlet baffle 5 are stably connected by the snap.

[0049] Here, there is no limitation on the setting method of the third protruding tooth and the third slot. The above is just one method of this example. In some embodiments, the second end 42 of the outlet replacement blade 4 that cooperates with the outlet baffle 5 is provided with a third slot, and the outlet baffle 5 is provided with a third protruding tooth that matches the third slot, so that when the second end 42 of the outlet replacement blade 4 is connected to the outlet baffle 5, the third protruding tooth of the outlet baffle 5 can be snapped into the third slot of the second end 42, so that the outlet replacement blade 4 and the outlet baffle 5 are stably connected by the buckle.

[0050] Further, see Figure 6 After the outlet baffle 5 is connected to the outlet replacement blade 4, the end surface of the outlet baffle 5 that cooperates with the impeller cover plate 1 abuts against the impeller cover plate 1 and is connected by a third fixing screw 52 to stably connect the outlet baffle 5 and the impeller cover plate 1.

[0051] Therefore, when the outlet replacement blade 4 is worn during the operation of the slurry pump, the outlet baffle 5 and the impeller cover plate 1 can be disassembled by simply removing the third fixing screw 32 from the outlet baffle 5 and the impeller cover plate 1, and then the third convex tooth 421 on the second end 42 of the outlet replacement blade 4 is pulled out from the third slot 51 of the outlet baffle 5 to remove the outlet baffle 5.

[0052] At this time, the outlet replacement blade 4 can be removed. The second fixing screw 43 can be removed from the outlet replacement blade 4 and the impeller cover plate 1, and the outlet replacement blade 4 and the impeller cover plate 1 can be disassembled. Then the second protruding tooth 231 at the outlet end 23 of the blade body 21 is pulled out from the second card groove 411 at the first end 41 of the outlet replacement blade 4, and the outlet replacement blade 4 can be removed from the blade body 21. The outlet replacement blade 4 can be maintained and replaced. The structure is simple and the disassembly and assembly are convenient.

[0053] The utility model provides a detachable and replaceable wear-resistant impeller, in which the two ends of a blade body 21 are detachably connected to an inlet replacement blade 3 and an outlet replacement blade 4 to form a blade 2. During the operation of the slurry pump, the wear of the blade 2 mainly occurs near the inlet and the outlet. The inlet replacement blade 3 at the inlet of the blade 2 and the outlet replacement blade 4 at the outlet can be disassembled and replaced, thereby reducing the cost of replacing the entire blade or the entire impeller. The utility model has a simple structure and is easy to disassemble and assemble.

[0054] 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 by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, 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 removable and replaceable wear-resistant impeller, comprising: Impeller cover, connecting the blades of the impeller cover plate, and The outlet baffle disposed at the outlet of the blade is characterized in that: The blade comprises a blade body, an inlet replacement blade detachably arranged at an inlet end of the blade body, and an outlet replacement blade detachably arranged at an outlet end of the blade body. The outlet baffle is detachably connected to the outlet replacement blade.

2. The detachable and replaceable wear-resistant impeller according to claim 1, characterized in that: The blade body and the impeller cover plate are an integrated structure.

3. The detachable and replaceable wear-resistant impeller according to claim 2, characterized in that: The connection end of the inlet replacement blade is connected to the inlet end of the blade body through a snap-fit ​​connection, and the inlet replacement blade is detachably connected to the impeller cover plate.

4. The detachable and replaceable wear-resistant impeller according to claim 3, characterized in that: The inlet replacement blade is connected to the impeller cover plate via a first fixing screw.

5. The detachable and replaceable wear-resistant impeller according to claim 1, characterized in that: The first end of the outlet replacement blade is connected to the outlet end of the blade body through a snap-fit ​​connection, and the second end of the outlet replacement blade is connected to the outlet baffle through a snap-fit ​​connection.

6. The detachable and replaceable wear-resistant impeller according to claim 5, characterized in that: The outlet replacement blade is detachably connected to the impeller cover plate.

7. The detachable and replaceable wear-resistant impeller according to claim 6, characterized in that: The outlet replacement blade is connected to the impeller cover plate via a second fixing screw.

8. The detachable and replaceable wear-resistant impeller according to claim 5, characterized in that: The outlet baffle is connected to the impeller cover plate via a third fixing screw.

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