Slurry pump overflowing part

Abstract

The utility model relates to the field of slurry pumps, in particular to a slurry pump overflowing part which comprises a wheel carrier and a mounting mechanism. A mounting groove is coaxially formed in the wheel carrier; the installation mechanism comprises a reinforcing ring arranged in the installation groove, six clamping blocks distributed in the installation groove in an annular array mode, an installation ring connected with the clamping blocks in an abutting mode, a sleeve arranged on the installation ring and a fixing assembly used for connecting the sleeve and the installation ring, and taper trapezoidal threads are arranged on the inner ring face of the sleeve. The inner wall of the mounting groove of the impeller is prevented from being abraded, the impact resistance and the deformation resistance of the impeller can be improved, and the service life of equipment is prolonged.

Description

Technical Field

[0001] The utility model relates to the field of slurry pumps, in particular to a flow component of a slurry pump. Background Art

[0002] The wetted parts of a slurry pump refer to the components inside the pump used to transport liquids containing solid particles. These components include the impeller, pump casing, liner, etc. In different applications, the material and structure of the wetted parts of the slurry pump will vary to adapt to slurry media of different concentrations and hardness.

[0003] Chinese patent publication number CN203670299U discloses a heavy-duty slurry pump with a quickly removable flow assembly, comprising a transmission assembly and a flow assembly. The transmission assembly comprises a pump shaft with a tapered trapezoidal thread at the front end. The impeller hub of the flow assembly has an internal thread with a tapered trapezoidal thread that matches the threaded section at the front end of the pump shaft. The auxiliary impeller has an annular positioning platform at the front end of the through hole that matches the outer circumference of the impeller hub. The impeller hub is fitted with a rear guard plate, and the auxiliary impeller is fitted onto the impeller hub end through the annular positioning platform at the front end of the through hole, radially positioning the three components. The three components are then encapsulated into a single unit by the rear pump casing, volute, front guard plate, and front pump casing. One end of the auxiliary impeller of the flow assembly is fitted onto the pump shaft and secured to the rear pump casing and bracket by bolts. This utility model makes replacement of flow components more convenient and quick, shortens the time required to replace flow components in a slurry pump, reduces the number of spare pumps, and lowers related costs.

[0004] However, the above technical solution has the following shortcomings: although the slurry pump can shorten the time for replacing the flow components, when the pump shaft head of the slurry pump is directly threadedly connected to the impeller, during long-term use, the inner wall of the impeller installation groove will cause obvious wear. At this time, the pump shaft needs to be disassembled and the inner wall of the installation groove needs to be processed, which is cumbersome to operate and not conducive to use. Utility Model Content

[0005] The purpose of the utility model is to address the problems existing in the background technology and propose a slurry pump flow part, which not only prevents the inner wall of the impeller installation groove from being worn, but also improves the impeller's impact resistance and deformation resistance, thereby increasing the service life of the equipment.

[0006] The technical solution of the utility model is a slurry pump flow part, including a wheel frame and a mounting mechanism; a mounting groove is coaxially arranged on the wheel frame; the mounting mechanism includes a reinforcement ring arranged inside the mounting groove, six blocks distributed in an annular array inside the mounting groove, a mounting ring abutting the blocks, a sleeve arranged on the mounting ring, and a fixing assembly for connecting the sleeve and the mounting ring, and a tapered trapezoidal thread is arranged on the inner ring surface of the sleeve.

[0007] Preferably, six limiting grooves for the card blocks to be embedded in are provided inside the installation groove, and six grooves for the card blocks to be embedded in are provided on the reinforcement ring and the installation ring.

[0008] Preferably, the fixing assembly includes three limit blocks distributed in a circular array on the sleeve and six fixing bolts distributed in a circular array on the mounting ring. The fixing bolts pass through the mounting ring and are threadedly connected to the sleeve. The mounting ring is provided with three positioning grooves for the limit blocks to be embedded.

[0009] Preferably, a sealing ring is provided at the gap opening between the mounting ring and the reinforcement ring, and the outer ring surface of the reinforcement ring abuts against the mounting groove.

[0010] Preferably, the end faces of the reinforcement ring and the mounting ring are welded to the bottom surface of the mounting groove.

[0011] Preferably, the wheel frame is provided with a plurality of shifting blades distributed in an annular array.

[0012] Preferably, a rear protective cover and a front protective cover are provided on the outer side of the wheel frame, and a rear guard plate and a front guard plate are provided on the rear protective cover and the front protective cover respectively.

[0013] Preferably, a decompression cover and a pump cover are provided on the outside of the rear protective sleeve and the front protective sleeve, a connecting pipe housing is provided on the decompression cover and the pump cover, and a placement through hole is provided on the decompression cover.

[0014] Compared with the prior art, the present invention has the following beneficial technical effects:

[0015] 1. The utility model improves the impact resistance and deformation resistance of the wheel frame when it rotates under the action of the pump shaft by welding the reinforcement ring and the clamping block inside the installation groove and interlocking with each other, thereby increasing the service life of the equipment.

[0016] 2. The utility model is connected to the pump shaft through a threaded connection through a sleeve. When the sleeve is worn, the sleeve can be directly replaced through a fixing assembly. There is no need to spend a lot of time processing the installation groove. The operation is simple and convenient, and it has good practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic structural diagram of an embodiment of the present utility model;

[0018] Figure 2 A schematic diagram of the overall structure.

[0019] Figure 3 This is a schematic diagram of the disassembled internal structure of the wheel frame;

[0020] Figure 4 Schematic diagram of the cross-sectional structure of the wheel frame.

[0021] Figure markings: 1. pressure reducing cover; 2. placement through hole; 3. connecting pipe housing; 4. rear sleeve; 5. rear guard plate; 6. wheel frame; 7. front sleeve; 8. front guard plate; 9. pump cover; 10. toggle blade; 11. sleeve; 12. mounting ring; 13. reinforcement ring; 14. block; 15. mounting groove; 16. limit groove; 17. limit block; 18. sealing ring; 19. fixing bolt. DETAILED DESCRIPTION

[0022] Example 1

[0023] like Figures 1-4 As shown, a slurry pump flow component proposed in this embodiment includes a wheel frame 6 and a mounting mechanism; a mounting groove 15 is coaxially provided on the wheel frame 6.

[0024] like Figure 3 and Figure 4 As shown, the mounting mechanism includes a reinforcement ring 13 arranged inside the mounting groove 15, six blocks 14 distributed in an annular array inside the mounting groove 15, a mounting ring 12 abutting against the block 14, a sleeve 11 arranged on the mounting ring 12, and a fixing assembly for connecting the sleeve 11 and the mounting ring 12. A tapered trapezoidal thread is provided on the inner annular surface of the sleeve 11, and the tapered trapezoidal thread is used to screw with the external thread at the end of the pump shaft.

[0025] Six limiting grooves 16 for the clamping block 14 to be embedded in are provided inside the installation groove 15 , and six grooves for the clamping block 14 to be embedded in are provided on both the reinforcement ring 13 and the installation ring 12 .

[0026] The fixing assembly includes three limit blocks 17 distributed in a circular array on the sleeve 11 and six fixing bolts 19 distributed in a circular array on the mounting ring 12. The fixing bolts 19 pass through the mounting ring 12 and are threadedly connected to the sleeve 11. The mounting ring 12 is provided with three positioning grooves for the limit blocks 17 to be embedded.

[0027] In this embodiment, the reinforcement ring 13 and the clamping block 14 are provided to improve the impact resistance and deformation resistance of the wheel frame 6 when it rotates under the action of the pump shaft.

[0028] When installing the mounting ring 12 and the reinforcement ring 13, first put the block 14 into the limit groove 16 and weld it, then slide the reinforcement ring 13 along the inner wall of the mounting groove 15 and align the groove of the reinforcement ring 13 with the block 14 and embed it, then weld the reinforcement ring 13 with the mounting groove 15 and the block 14, then align the groove on the mounting ring 12 with the block 14 and embed it, then weld the mounting ring 12, and finally embed the limit block 17 of the sleeve 11 into the positioning groove, and then pass the fixing bolt 19 through the mounting ring 12 and screw it into the sleeve 11, thus completing the fixed installation of the sleeve 11, thereby avoiding direct contact between the pump shaft and the mounting groove 15, and when the sleeve 11 is severely worn, the sleeve 11 can be directly replaced, and there is no need to spend a lot of time processing the mounting groove 15, and the operation is simple and convenient, with good practicality.

[0029] Example 2

[0030] like Figure 3 and Figure 4 As shown, the present embodiment proposes a slurry pump flow component. Compared to the first embodiment, in this embodiment, a sealing ring 18 is provided at the gap opening between the mounting ring 12 and the reinforcement ring 13. The outer ring surface of the reinforcement ring 13 abuts the mounting groove 15, and the end surfaces of the reinforcement ring 13 and the mounting ring 12 are welded to the bottom surface of the mounting groove 15. The sealing ring 18 is used to seal the gap between the mounting ring 12 and the reinforcement ring 13. Welding the reinforcement ring 13 and the mounting ring 12 to the interior of the mounting groove 15 can improve the connectivity and tightness of the reinforcement ring 13, the mounting ring 12, and the wheel frame 6, as opposed to fixing them with threaded fasteners.

[0031] Example 3

[0032] like Figure 1 and Figure 2 As shown, this embodiment proposes a slurry pump flow member. Compared with the first embodiment, in this embodiment, the wheel frame 6 is provided with a plurality of annular array-distributed paddles 10. The paddles 10 on the slurry pump wheel frame 6 can discharge solid particles from the pump body. A rear sheath 4 and a front sheath 7 are provided on the outside of the wheel frame 6. The rear sheath 4 and the front sheath 7 are respectively provided with a rear guard plate 5 and a front guard plate 8. A pressure reducing cover 1 and a pump cover 9 are provided on the outside of the rear sheath 4 and the front sheath 7. The pressure reducing cover 1 and the pump cover 9 are both provided with a connecting pipe housing 3. The pressure reducing cover 1 is provided with a placement through hole 2 for inserting the pump shaft.

[0033] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the purpose of the present invention.

Claims

1. A slurry pump flow part, characterized in that: include: A wheel frame (6) having a mounting groove (15) coaxially arranged thereon; The mounting mechanism comprises a reinforcement ring (13) arranged inside a mounting groove (15), six clamping blocks (14) distributed in an annular array inside the mounting groove (15), a mounting ring (12) abutting against the clamping blocks (14), a sleeve (11) arranged on the mounting ring (12), and a fixing assembly for connecting the sleeve (11) and the mounting ring (12), wherein a tapered trapezoidal thread is provided on the inner annular surface of the sleeve (11).

2. A slurry pump flow component according to claim 1, characterized in that: Six limiting grooves (16) for the card block (14) to be embedded are provided inside the installation groove (15), and six grooves for the card block (14) to be embedded are provided on the reinforcement ring (13) and the installation ring (12).

3. A slurry pump flow component according to claim 1, characterized in that: The fixing assembly comprises three limiting blocks (17) distributed in an annular array on the sleeve (11) and six fixing bolts (19) distributed in an annular array on the mounting ring (12). The fixing bolts (19) pass through the mounting ring (12) and are threadedly connected to the sleeve (11). The mounting ring (12) is provided with three positioning grooves for the limiting blocks (17) to be embedded.

4. A slurry pump flow component according to claim 1, characterized in that: A sealing ring (18) is provided at the gap opening between the mounting ring (12) and the reinforcement ring (13), and the outer ring surface of the reinforcement ring (13) abuts against the mounting groove (15).

5. The slurry pump flow component according to claim 1, characterized in that: The end faces of the reinforcement ring (13) and the mounting ring (12) are all welded to the bottom surface of the mounting groove (15).

6. A slurry pump flow component according to claim 1, characterized in that: A plurality of shifting blades (10) distributed in a ring array are provided on the wheel frame (6).

7. A slurry pump flow component according to claim 6, characterized in that: The outer side of the wheel frame (6) is provided with a rear protective cover (4) and a front protective cover (7), and the rear protective cover (4) and the front protective cover (7) are respectively provided with a rear guard plate (5) and a front guard plate (8).

8. A slurry pump flow component according to claim 7, characterized in that: A decompression cover (1) and a pump cover (9) are provided on the outside of the rear protective sleeve (4) and the front protective sleeve (7), a connecting pipe housing (3) is provided on the decompression cover (1) and the pump cover (9), and a placement through hole (2) is provided on the decompression cover (1).

Images