Pump cover structure of paper pulp pump

Abstract

The utility model discloses a pump cover structure of a paper pulp pump, which comprises a main shaft and further comprises a symmetrical pump cover component, the symmetrical pump cover component comprises a mounting plate, the mounting plate is of a hexagonal structure, and mounting holes are arranged on the periphery of the mounting plate. According to the symmetrical pump cover assembly, the base plate and the installation plate which are used for being in butt joint with the paper pulp pump are arranged to be of a central symmetry structure, and the pump cover for installing the main shaft and the bearing seat structure are installed on the central shaft of the installation plate. In other words, the main shaft is installed on the center shaft of the device, so that the problem that the main shaft shakes in the rotating process is avoided to the maximum extent, and the device has the advantage in the aspect of dynamic balance.

Description

Technical Field

[0001] This utility model relates to the field of pulp pump cover technology, and in particular to a pulp pump cover structure. Background Technology

[0002] The pump cover of a pulp pump is one of the key components of a pulp pump. It is mainly used to seal the pump body and support transmission components such as bearings. It is usually made of cast iron, stainless steel or wear-resistant alloy materials, and has high strength, corrosion resistance and wear resistance. Its structural design must ensure sealing performance to prevent media leakage, while facilitating installation and maintenance. It is widely used in industries such as papermaking and chemical engineering to transport high-concentration pulp or corrosive liquids.

[0003] Chinese patent CN214887927U discloses a pulp pump cover fixing structure. This patent includes a pump housing, a pump cover, and a pump bracket. An outer stop is provided on the side of the pump cover that contacts the pump housing, and the pump cover is positioned against the pump housing through this stop. An inner stop is provided on the pump bracket, and the outer circle of the pump cover is positioned against this stop. Axially, the pump cover is positioned between the pump housing and the pump bracket, and the pump housing and pump bracket are connected and secured by a fastener. The fastener is a bolt, and the pump housing and pump bracket are secured by bolts. The pump cover is fixed by pressing it against the pump housing. This invention eliminates the need for bolts between the pump housing and the pump cover, reducing the number of fasteners and saving radial space. This makes design and installation more convenient and allows for improvements in pulp pump performance. Furthermore, the pulp pump housing, pump cover, and pulp pump bracket are all optimized, reducing material usage and saving costs.

[0004] In existing technologies, the stress and deformation effects of the pump cover are generally not considered during the structural design of pulp pumps. This means that in actual use, the pump cover, due to its structural asymmetry, is prone to dynamic imbalance. Since the pump cover is a component of the main shaft assembly, this dynamic imbalance can cause the main shaft to wobble, thus requiring improvement. Utility Model Content

[0005] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a pulp pump cover structure.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A pulp pump cover structure includes a main shaft and further includes:

[0008] A symmetrical pump cover assembly includes a mounting plate, which has a hexagonal structure and mounting holes around its perimeter.

[0009] A further technical solution involves mounting a pad on one side of the mounting plate, with holes provided on the surface of the pad.

[0010] A further technical solution involves the holes and mounting holes being positioned to correspond to each other, with bolts installed inside the holes and mounting holes.

[0011] A further technical solution involves mounting a pump cover on one side of the mounting plate, mounting a bearing cover on one side of the pump cover, installing a bearing inside the bearing cover, inserting the main shaft into the bearing, and providing a baffle at the joint between the bearing cover and the bearing.

[0012] A further technical solution involves installing a waterproof gasket on the inner side of the pump cover, corresponding to the main shaft.

[0013] A further technical solution involves fixing reinforcing ribs around the perimeter of the pump cover on the mounting plate.

[0014] A further technical solution involves a key being installed on one side of the spindle, and a chamfer being provided on the other side of the spindle.

[0015] Compared with the prior art, the present invention provides a pulp pump cover structure, which has the following beneficial effects:

[0016] This invention features a symmetrical pump cover assembly. The assembly incorporates a centrally symmetrical structure for the pad and mounting plate used to connect to the pulp pump. The pump cover and bearing housing, which mount the main shaft, are both mounted on the central axis of the mounting plate. In other words, the main shaft is mounted on the central axis of the device, which minimizes the risk of shaft wobbling during rotation and provides an advantage in dynamic balance. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of a pulp pump cover proposed in this utility model;

[0018] Figure 2 This is a schematic diagram of the longitudinal section of a pulp pump cover structure proposed in this utility model;

[0019] Figure 3 This is an exploded view of the structure of a pulp pump cover proposed in this utility model.

[0020] Figure 4 This is a side view of a pulp pump cover structure proposed in this utility model.

[0021] In the diagram: 1. Main shaft; 2. Symmetrical pump cover assembly; 3. Pad; 4. Mounting plate; 5. Hole; 6. Mounting hole; 7. Bolt; 8. Pump cover; 9. Waterproof gasket; 10. Bearing cover; 11. Bearing; 12. Rib; 13. Key; 14. Baffle; 15. Chamfer. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present utility model. In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of the present utility model.

[0023] Example 1: Refer to Figure 1 - Figure 4 A pulp pump cover structure includes a main shaft 1, which is a driving component for the pulp pump impeller, and further includes:

[0024] The symmetrical pump cover assembly 2 includes a mounting plate 4, which is mounted on the surface of the pump body via a pad 3. Both are symmetrical structures, which can avoid dynamic balance problems during installation. The mounting plate 4 has a hexagonal structure and mounting holes 6 are provided around its perimeter.

[0025] In the pulp pump cover structure described above, a pad 3 is installed on one side of the mounting plate 4. The holes 5 on the pad 3 correspond to the mounting holes 6, and are used to install bolts 7. The surface of the pad 3 is provided with holes 5.

[0026] In the pulp pump cover structure, the positions of the hole 5 and the mounting hole 6 correspond to each other, and bolts 7 are installed inside the hole 5 and the mounting hole 6.

[0027] The described pulp pump cover structure includes a pump cover 8 mounted on one side of the mounting plate 4. The pump cover 8 is an extension of the main shaft 1. A bearing cover 10 and a bearing 11 mounted on one side of the pump cover 8 support the rotation of the main shaft 1. A bearing cover 10 is mounted on one side of the pump cover 8, and a bearing 11 is installed inside the bearing cover 10. The main shaft 1 is inserted into the bearing 11. A baffle 14 is provided at the point where the bearing cover 10 and the bearing 11 meet.

[0028] The aforementioned pulp pump cover structure includes a waterproof pad 9 installed on the inner side of the pump cover 8 corresponding to the main shaft 1. The waterproof pad 9 is used to prevent water leakage.

[0029] The pulp pump cover structure described above has a rib plate 12 fixedly installed around the surface of the mounting plate 4. The rib plate 12 is used to increase the structural strength of the device.

[0030] The pulp pump cover structure has a key 13 installed on one side of the main shaft 1, and a chamfer 15 is provided on the other side of the main shaft 1. The chamfer 15 is used to prevent workers from being cut during the installation process.

[0031] Working principle:

[0032] In the actual design process of this utility model, to avoid the following defects existing in the prior art: "In the prior art, the stress and deformation effects of the pump cover are generally not considered in the structural design of pulp pumps. That is to say, in actual use, the pump cover is prone to deviation in dynamic balance due to the asymmetry of its own structure. Since the pump cover is a part of the main shaft assembly, this dynamic balance deviation may cause the main shaft to wobble, so improvement is needed." Therefore, a symmetrical pump cover assembly 2 is specifically proposed.

[0033] Symmetrical pump cover assembly 2:

[0034] The main function of this component is to improve the dynamic balance structure of the pump cover, avoiding spindle wobbling caused by oversights in the structural design process. The structure for docking with the pump body consists of a pad 3 and a mounting plate 4, with the pad 3 providing waterproofing and a tight seal. The mounting holes 6 and 5 on the mounting plate 4 are positioned correspondingly and secured with bolts 7. The pump cover 8 structure is also mounted on the axis of the mounting plate 4, and the bearing 11 inside the bearing cover supports and rotates the spindle 1. The spindle 1 is installed within a symmetrical structure, preventing wobbling during rotation.

[0035] In existing technologies, the stress and deformation effects of the pump cover are generally not considered during the structural design of pulp pumps. This means that in actual use, the pump cover, due to its structural asymmetry, is prone to dynamic imbalance. Since the pump cover is a component of the main shaft assembly, this dynamic imbalance can cause the main shaft to wobble, thus requiring improvement.

[0036] This invention features a symmetrical pump cover assembly. The assembly incorporates a centrally symmetrical structure for the pad and mounting plate used to connect to the pulp pump. The pump cover and bearing housing, which mount the main shaft, are both mounted on the central axis of the mounting plate. In other words, the main shaft is mounted on the central axis of the device, which minimizes the risk of shaft wobbling during rotation and provides an advantage in dynamic balance.

[0037] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. The above description is merely a preferred embodiment of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A pulp pump cover structure, comprising a main shaft (1), characterized in that, Also includes: A symmetrical pump cover assembly (2) includes a mounting plate (4), which has a hexagonal structure and mounting holes (6) are provided around its periphery.

2. The pulp pump cover structure according to claim 1, characterized in that, A pad (3) is installed on one side of the mounting plate (4), and holes (5) are provided on the surface of the pad (3).

3. The pulp pump cover structure according to claim 2, characterized in that, The positions of the hole (5) and the mounting hole (6) correspond to each other, and bolts (7) are installed inside the hole (5) and the mounting hole (6).

4. The pulp pump cover structure according to claim 1, characterized in that, A pump cover (8) is installed on one side of the mounting plate (4), and a bearing cover (10) is installed on one side of the pump cover (8). A bearing (11) is installed inside the bearing cover (10), and the main shaft (1) is inserted into the bearing (11). A baffle (14) is provided at the part where the bearing cover (10) and the bearing (11) are connected.

5. The pulp pump cover structure according to claim 4, characterized in that, A waterproof pad (9) is installed on the inner side of the pump cover (8) at the part corresponding to the main shaft (1).

6. The pulp pump cover structure according to claim 4, characterized in that, The pump cover (8) is fixedly installed with stiffening plates (12) around the surface of the mounting plate (4).

7. The pulp pump cover structure according to claim 5, characterized in that, A key (13) is installed on one side of the spindle (1), and a chamfer (15) is provided on the other side of the spindle (1).

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