Slurry pump impeller capable of being disassembled quickly

Abstract

The utility model relates to the technical field of impellers, in particular to a slurry pump impeller capable of being disassembled quickly, which comprises an impeller assembly, and the impeller assembly comprises an impeller main body. The main shaft is inserted into the connecting ring, the nut ring is rotated clockwise to move rightwards along the outer side wall of the circular ring threaded sleeve, the nut ring drives the connecting ring and the circular ring pressing seat to move rightwards, and the conical curved surface part in the circular ring pressing seat extrudes the pin rod; the pin rod is extruded, moves towards the interior of the connecting ring and then is inserted into the pin hole, connection and fixation between the connecting ring and the main shaft are achieved, and therefore the impeller body is installed on the main shaft, when the pin rod is inserted into the pin hole, the spring is extruded and shortened, and when the impeller needs to be disassembled, the nut ring is rotated anticlockwise to move leftwards, and the impeller is disassembled. The nut ring drives the circular ring pressing seat to move leftwards, the pin rod is not extruded any more, the spring extends to drive the pin rod to leave the pin hole, connection and fixation between the connecting ring and the main shaft are removed, and the impeller can be rapidly disassembled.

Description

Technical Field

[0001] The utility model relates to the technical field of impellers, in particular to a quickly disassembled slurry pump impeller. Background Art

[0002] Slurry pump refers to a kind of machine that increases the energy of solid-liquid mixed medium by the action of centrifugal force (rotation of the pump impeller), and converts electrical energy into kinetic energy and potential energy of the medium. It is mainly applicable to: mining, power plants, dredging, metallurgy, chemical industry, building materials and petroleum industries;

[0003] The commonly used connection method between the impeller and the main shaft of a slurry pump is a threaded connection. During continuous long-term and high-load operation, the strong centrifugal force causes the impeller to be tightened and tightened, thereby accumulating strong internal stress, making it extremely difficult to disassemble the impeller during maintenance after the use cycle. In the existing technology, the slurry pump impeller cannot be disassembled quickly, and sometimes destructive disassembly can only be adopted because it is often impossible to disassemble, which brings a large workload and increases unnecessary production costs. Therefore, a slurry pump impeller that can be quickly disassembled is proposed. Utility Model Content

[0004] The utility model aims to provide a quickly disassembled slurry pump impeller to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a quickly disassembled slurry pump impeller, comprising an impeller assembly, the impeller assembly comprising an impeller body, the right side wall of the impeller body is fixedly provided with a connecting ring, the inner side wall of the connecting ring is plugged with a main shaft, the upper part of the outer side wall of the main shaft and the lower part of the outer side wall of the main shaft are both provided with pin holes, the upper part of the outer side wall of the connecting ring and the lower part of the outer side wall of the connecting ring are both slidably connected with a pin rod, the outer side wall of the pin rod is fixedly connected with a fixing ring, a spring is fixedly connected between the fixing ring and the opposite side of the connecting ring, a circular threaded sleeve is fixedly connected to the middle part of the outer side wall of the connecting ring, a nut ring is threadedly connected to the outer side wall of the circular threaded sleeve, the right side wall of the nut ring is fixedly connected with a connecting ring, the right side wall of the connecting ring is fixedly connected with a circular pressure seat, and the inner side wall of the circular pressure seat is provided with a conical curved portion.

[0006] As a further preferred embodiment of the technical solution: one end of the pin rod away from the connecting ring is fixedly connected with a semicircular head.

[0007] As a further preferred embodiment of the present technical solution: the outer side wall of the semicircular head is a smooth curved surface, and the conical curved surface portion is a smooth curved surface.

[0008] As a further preferred embodiment of the technical solution: the front portion of the outer side wall of the main shaft and the rear portion of the outer side wall of the main shaft are both fixedly connected with two positioning strips.

[0009] As a further preferred embodiment of the present technical solution: a positioning groove is provided at a front portion of the right side wall of the connecting ring and a rear portion of the right side wall of the connecting ring, and an outer side wall of the positioning strip is slidably connected to an inner side wall of the positioning groove.

[0010] As a further preferred embodiment of the present technical solution: the outer side wall of the nut ring is evenly and fixedly connected with a grip rod.

[0011] As a further preferred embodiment of the present technical solution: the outer side wall of the grip rod is covered with a sponge cover.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] The utility model inserts the main shaft into the connecting ring, rotates the nut ring clockwise to make the nut ring move to the right along the outer side wall of the circular ring threaded sleeve, the nut ring drives the connecting ring and the circular ring pressure seat to move to the right, and the conical curved surface part inside the circular ring pressure seat squeezes the pin rod, and the pin rod moves toward the inside of the connecting ring after being squeezed and then inserted into the pin hole, thereby realizing the connection and fixation between the connecting ring and the main shaft, thereby installing the impeller body on the main shaft, and when the pin rod is inserted into the pin hole, the spring is squeezed and shortened, and when the impeller needs to be disassembled, the nut ring is rotated counterclockwise to make the nut ring move to the left, the nut ring drives the circular ring pressure seat to move to the left, the pin rod is no longer squeezed, the spring stretches to drive the pin rod to leave the pin hole, and the connection and fixation between the connecting ring and the main shaft are released, so that the impeller can be quickly disassembled, saving time and labor, avoiding destructive disassembly, and helping to save production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0015] Figure 2 It is a cross-sectional structural schematic diagram of the utility model;

[0016] Figure 3 For the utility model Figure 2 A magnified view of the structure of area A;

[0017] Figure 4 It is a structural schematic diagram of the main shaft and the pin hole in the utility model;

[0018] Figure 5 It is a structural schematic diagram of the connecting ring and the annular threaded sleeve in the utility model;

[0019] Figure 6 This is a schematic diagram of the structure of the handle and sponge cover in the utility model;

[0020] Figure 7 It is a structural schematic diagram of the circular ring pressure seat and the conical curved surface portion in the utility model.

[0021] In the figure: 1. impeller body; 2. connecting ring; 3. main shaft; 4. pin hole; 5. pin rod; 6. fixing ring; 7. spring; 8. circular threaded sleeve; 9. nut ring; 10. connecting ring; 11. circular ring pressure seat; 12. conical curved surface; 13. semicircular head; 14. positioning strip; 15. positioning groove; 16. grip rod; 17. sponge sleeve. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Examples of the embodiments are shown in the drawings, where the same or similar reference numerals throughout represent the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present application, and cannot be understood as limitations on the present application. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0023] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", and "set" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0024] See also Figure 1-7The utility model provides a technical solution: a slurry pump impeller for rapid disassembly, including an impeller assembly, the impeller assembly including an impeller body 1, a right side wall of the impeller body 1 is fixedly provided with a connecting ring 2, the inner side wall of the connecting ring 2 is plugged with a main shaft 3, the upper part of the outer side wall of the main shaft 3 and the lower part of the outer side wall of the main shaft 3 are both provided with pin holes 4, the upper part of the outer side wall of the connecting ring 2 and the lower part of the outer side wall of the connecting ring 2 are both slidably connected with a pin rod 5, the outer side wall of the pin rod 5 is fixedly connected with a fixing ring 6, a spring 7 is fixedly connected between the fixing ring 6 and the opposite side of the connecting ring 2, a circular threaded sleeve 8 is fixedly connected to the middle part of the outer side wall of the connecting ring 2, a nut ring 9 is threadedly connected to the outer side wall of the circular threaded sleeve 8, a connecting ring 10 is fixedly connected to the right side wall of the nut ring 9, a circular pressure seat 11 is fixedly connected to the right side wall of the connecting ring 10, and a conical curved portion 12 is provided on the inner side wall of the circular pressure seat 11; when connecting the main shaft 3 and the impeller body 1, The nut ring 9 is rotated clockwise to move the nut ring 9 to the right along the outer wall of the circular threaded sleeve 8, and the nut ring 9 drives the connecting ring 10 and the circular ring pressure seat 11 to move to the right. The conical curved surface 12 inside the circular ring pressure seat 11 squeezes the pin rod 5. After being squeezed, the pin rod 5 moves to the inside of the connecting ring 2 and is then inserted into the pin hole 4 to achieve the connection and fixation between the connecting ring 2 and the main shaft 3, thereby installing the impeller body 1 on the main shaft 3. When the pin rod 5 is inserted into the pin hole 4, the spring 7 is squeezed and shortened. When the impeller needs to be disassembled, the nut ring 9 is rotated counterclockwise to move the nut ring 9 to the left, and the nut ring 9 drives the circular ring pressure seat 11 to move to the left. The pin rod 5 is no longer squeezed, and the spring 7 is extended to drive the pin rod 5 to leave the pin hole 4, thereby releasing the connection and fixation between the connecting ring 2 and the main shaft 3. The impeller can be quickly disassembled, saving time and effort, avoiding destructive dismantling, and saving production costs.

[0025] In this embodiment, specifically: one end of the pin rod 5 away from the connecting ring 2 is fixedly connected with a semicircular head 13 .

[0026] In this embodiment, specifically: the outer wall of the semicircular head 13 is a smooth curved surface, and the conical curved surface portion 12 is a smooth curved surface; this is beneficial to reducing the friction between the semicircular head 13 and the conical curved surface portion 12 .

[0027] In this embodiment, specifically: the front part of the outer wall of the main shaft 3 and the rear part of the outer wall of the main shaft 3 are both fixedly connected with two positioning bars 14 , so that the positioning bars 14 and the main shaft 3 can keep synchronous movement.

[0028] In this embodiment, specifically: a positioning groove 15 is provided at the front of the right side wall of the connecting ring 2 and the rear of the right side wall of the connecting ring 2, and the outer wall of the positioning strip 14 is slidably connected to the inner wall of the positioning groove 15; when the main shaft 3 is inserted into the connecting ring 2, the positioning strip 14 is aligned with the positioning groove 15 and inserted to achieve fast and accurate positioning.

[0029] In this embodiment, specifically: the outer side wall of the nut ring 9 is evenly and fixedly connected with a gripping rod 16 ; it is convenient for the staff to hold the gripping rod 16 to rotate the nut ring 9 .

[0030] In this embodiment, specifically: a sponge cover 17 is provided on the outer wall of the grip rod 16 to improve the comfort of the staff when gripping the grip rod 16 .

[0031] The working principle of the utility model is: when connecting the main shaft 3 and the impeller body 1, the main shaft 3 is inserted into the connecting ring 2, and the nut ring 9 is rotated clockwise to make the nut ring 9 move to the right along the outer wall of the circular threaded sleeve 8, and the nut ring 9 drives the connecting ring 10 and the circular ring pressure seat 11 to move to the right, and the conical curved surface portion 12 inside the circular ring pressure seat 11 squeezes the pin rod 5. After being squeezed, the pin rod 5 moves to the inside of the connecting ring 2 and then inserts into the pin hole 4, so as to realize the connection and fixation between the connecting ring 2 and the main shaft 3. When the impeller body 1 is installed on the main shaft 3 and the pin rod 5 is inserted into the pin hole 4, the spring 7 is squeezed and shortened. When the impeller needs to be disassembled, the nut ring 9 is rotated counterclockwise to move the nut ring 9 to the left. The nut ring 9 drives the annular pressure seat 11 to move to the left, and the pin rod 5 is no longer squeezed. The spring 7 stretches to drive the pin rod 5 to leave the pin hole 4, and the connection between the connecting ring 2 and the main shaft 3 is released. The impeller can be quickly disassembled, saving time and effort, avoiding destructive dismantling, and helping to save production costs.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A quick-disassembly slurry pump impeller, comprising an impeller assembly, characterized in that: The impeller assembly comprises an impeller body (1), a connecting ring (2) is fixedly provided on the right side wall of the impeller body (1), a main shaft (3) is inserted into the inner side wall of the connecting ring (2), a pin hole (4) is provided on the upper part of the outer side wall of the main shaft (3) and the lower part of the outer side wall of the main shaft (3), a pin rod (5) is slidably connected to the upper part of the outer side wall of the connecting ring (2) and the lower part of the outer side wall of the connecting ring (2), the outer side wall of the pin rod (5) is fixedly connected to a fixing ring (6), and the A spring (7) is fixedly connected between the fixing ring (6) and the opposite side of the connecting ring (2); a circular threaded sleeve (8) is fixedly connected to the middle of the outer wall of the connecting ring (2); a nut ring (9) is threadedly connected to the outer wall of the circular threaded sleeve (8); a connecting ring (10) is fixedly connected to the right side wall of the nut ring (9); a circular pressure seat (11) is fixedly connected to the right side wall of the connecting ring (10); and a conical curved surface portion (12) is provided on the inner side wall of the circular pressure seat (11).

2. The quick-disassembly slurry pump impeller according to claim 1, characterized in that: One end of the pin rod (5) away from the connecting ring (2) is fixedly connected with a semicircular head (13).

3. The quick-disassembly slurry pump impeller according to claim 2, characterized in that: The outer side wall of the semicircular head (13) is a smooth curved surface, and the conical curved surface portion (12) is a smooth curved surface.

4. The quick-disassembly slurry pump impeller according to claim 1, characterized in that: The front portion of the outer side wall of the main shaft (3) and the rear portion of the outer side wall of the main shaft (3) are both fixedly connected with two positioning strips (14).

5. The fast disassembly slurry pump impeller according to claim 4, characterized in that: A positioning groove (15) is provided at the front part of the right side wall of the connecting ring (2) and the rear part of the right side wall of the connecting ring (2), and the outer side wall of the positioning strip (14) is slidably connected to the inner side wall of the positioning groove (15).

6. The quick-disassembly slurry pump impeller according to claim 1, characterized in that: The outer side wall of the nut ring (9) is evenly and fixedly connected with a gripping rod (16).

7. The quick-disassembly slurry pump impeller according to claim 6, characterized in that: The outer side wall of the grip rod (16) is covered with a sponge cover (17).

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