Pulp pump impeller gap adjusting device

Abstract

The utility model belongs to the technical field of paper pulp pumps, and particularly relates to a paper pulp pump impeller gap adjusting device which comprises a pump body, a pump shell, a sealing cover arranged on one side of the pump shell, a feeding port formed in one side of the top of the pump shell and a discharging port formed in one side of the bottom of the pump shell. The gap adjusting assembly comprises a hollow shaft arranged on one side of an inner cavity of the pump shell, a fixed impeller arranged on the surface of the hollow shaft, a movable shaft arranged in the inner cavity of the hollow shaft, a movable impeller arranged on the surface of the movable shaft, a rotating sleeve arranged in the middle of the sealing cover and connected with the other end of the movable shaft, and a threaded pin arranged on one side of the rotating sleeve. The sound insulation and noise reduction assembly comprises a sound insulation layer arranged on the surface of the pump shell, a honeycomb layer arranged on the outer wall of the sound insulation layer and a protection layer arranged on the outer wall of the honeycomb layer; the impeller is reasonable in structure, the gap between the impellers can be conveniently adjusted in the using process, meanwhile, the functions of sound insulation and noise reduction are achieved, and practicability is high.

Description

Technical Field

[0001] The utility model relates to the technical field of pulp pumps, in particular to an impeller clearance regulating device for a pulp pump. Background Art

[0002] The two-phase flow pulp pump adopts the principle of "relative suction and relative blocking" in the two-phase flow theory to carry out the hydraulic design of the pump, so that the hydraulic performance of the pump flow components conforms to the law of solid-liquid two-phase flow, thereby reducing the scouring and wear of the flow components by the slurry, greatly improving the working efficiency and service life of the pump. The existing pulp pump technology has the following problems: At present, the impeller form of the pulp pump can adopt closed, semi-open and fully open structures as needed. Due to some limitations in the self-structure and pump body structure of various impeller structures, the impeller clearance cannot be effectively adjusted in the pump body. At the same time, the existing pulp is noisy during use.

[0003] Based on the above problems, we propose a new pulp pump impeller clearance adjustment device. Utility Model Content

[0004] The purpose of this section is to summarize some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract of the specification and the name of the utility model of this application to avoid blurring the purpose of this section, the abstract of the specification and the name of the utility model, and such simplifications or omissions cannot be used to limit the scope of the utility model.

[0005] In view of the problems existing in the prior art, the present utility model is proposed.

[0006] Therefore, the purpose of the utility model is to provide a pulp pump impeller gap adjustment device, which can facilitate the adjustment of the gap between the impellers during use, and also has the function of sound insulation and noise reduction, and is highly practical.

[0007] In order to solve the above technical problems, according to one aspect of the present invention, the present invention provides the following technical solutions:

[0008] A pulp pump impeller clearance adjustment device, comprising:

[0009] The pump body comprises a pump casing, a sealing cover arranged on one side of the pump casing, a feed inlet arranged on one side of the top of the pump casing, and a discharge outlet arranged on one side of the bottom of the pump casing;

[0010] The clearance adjustment assembly comprises a hollow shaft arranged at one side of the inner cavity of the pump casing, a fixed impeller arranged on the surface of the hollow shaft, a movable shaft arranged in the inner cavity of the hollow shaft, a movable impeller arranged on the surface of the movable shaft, a rotating sleeve arranged in the middle of the sealing cover and connected to the other end of the movable shaft, and a threaded pin arranged at one side of the rotating sleeve;

[0011] The sound insulation and noise reduction component comprises a sound insulation layer arranged on the surface of a pump casing, a honeycomb layer arranged on the outer wall of the sound insulation layer, and a protective layer arranged on the outer wall of the honeycomb layer.

[0012] As a preferred solution of the pulp pump impeller clearance adjustment device described in the utility model, wherein: the inner cavity of the feed port is provided with a mesh grille.

[0013] As a preferred solution of the pulp pump impeller clearance adjustment device described in the utility model, a sealing ring is provided at the connection between the pump casing and the sealing cover.

[0014] As a preferred solution of the pulp pump impeller clearance adjustment device described in the utility model, a positioning block is arranged on the end surface of the movable shaft close to the hollow shaft, and a matching positioning groove is arranged in the inner cavity of the hollow shaft.

[0015] As a preferred solution of the pulp pump impeller clearance adjustment device described in the utility model, a threaded hole matching with a threaded pin is arranged on the end surface of the movable shaft close to the rotating sleeve.

[0016] As a preferred solution of the pulp pump impeller clearance adjustment device described in the utility model, the sound insulation layer is a sound insulation cotton woven layer.

[0017] As a preferred solution of the pulp pump impeller clearance adjustment device described in the utility model, honeycomb holes are arranged inside the honeycomb layer.

[0018] Compared with the prior art, the beneficial effects of the utility model are:

[0019] 1. A fixed impeller is arranged on the surface of the hollow shaft, a movable shaft is arranged in the inner cavity of the hollow shaft, and a movable impeller is arranged on the movable shaft. By adjusting the length of the movable shaft inserted into the inner cavity of the hollow shaft, the distance between the movable impeller and the fixed impeller can be adjusted, and the flexibility is high;

[0020] 2. In addition, by arranging a sound insulation layer, a honeycomb layer and a protective layer on the outer wall of the pump housing, the device and the sound insulation and noise reduction performance are improved, and the practicality is strong. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solution of the implementation of the utility model, the utility model will be described in detail below in combination with the drawings and detailed implementation. Obviously, the drawings described below are only some implementations of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0022] Figure 1It is a schematic diagram of the structure of the utility model;

[0023] Figure 2 This is a schematic diagram of the structure of the gap adjustment component of the utility model;

[0024] Figure 3 This is a schematic diagram of the structure of the sound insulation and noise reduction component of the utility model.

[0025] In the figure; 100 pump body, 110 pump casing, 120 sealing cover, 130 feed port, 140 discharge port, 200 gap adjustment component, 210 hollow shaft, 220 fixed impeller, 230 movable shaft, 240 movable impeller, 250 rotating sleeve, 260 threaded pin, 300 sound insulation and noise reduction component, 310 sound insulation layer, 320 honeycomb layer, 330 protective layer. DETAILED DESCRIPTION

[0026] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings.

[0027] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific implementation methods disclosed below.

[0028] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the implementation of the present invention, for the sake of convenience, the cross-sectional diagram showing the device structure will not be partially enlarged according to the general proportion, and the schematic diagram is only an example, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0029] In order to make the purpose, technical solution and advantages of the present invention more clear, the implementation mode of the present invention will be further described in detail below with reference to the accompanying drawings.

[0030] The utility model provides the following technical solutions: a pulp pump impeller clearance adjustment device, which is convenient for adjusting the clearance between the impellers during use, and also has the function of sound insulation and noise reduction, and is highly practical;

[0031] Figures 1 to 3 The figure shows a schematic structural diagram of an embodiment of a pulp pump impeller clearance adjustment device of the utility model, the main body of which includes a pump body 100, a clearance adjustment component 200 and a sound insulation and noise reduction component 300;

[0032] The pump body 100 includes a pump casing 110, a sealing cover 120 installed on one side of the pump casing 110, a feed port 130 installed on one side of the top of the pump casing 110, and a discharge port 140 installed on one side of the bottom of the pump casing 110. The inner cavity of the feed port 130 is installed with a mesh grille, and a sealing ring is installed at the connection between the pump casing 110 and the sealing cover 120. Further, the pump casing 110 is used to carry components such as the hollow shaft 210, the sealing cover 120 is used to seal the pump casing 110, the feed port 130 is used for material entry, and the discharge port 140 is used for material discharge;

[0033] The clearance adjustment assembly 200 includes a hollow shaft 210 installed on one side of the inner cavity of the pump housing 110, a fixed impeller 220 installed on the surface of the hollow shaft 210, a movable shaft 230 installed in the inner cavity of the hollow shaft 210, a movable impeller 240 installed on the surface of the movable shaft 230, a rotating sleeve 250 installed in the middle of the sealing cover 120 and connected to the other end of the movable shaft 230, and a threaded pin 260 installed on one side of the rotating sleeve 250. A positioning block is installed on the surface of one end of the movable shaft 230 close to the hollow shaft 210, a matching positioning groove is provided in the inner cavity of the hollow shaft 210, and a threaded hole matching the threaded pin 260 is provided on the surface of one end of the movable shaft 230 close to the rotating sleeve 250. Further, the hollow shaft 210 is used to carry the movable shaft 230 and the fixed impeller 220, the movable shaft 230 is used to drive the movable impeller 240 to move left and right to achieve spacing adjustment, the rotating sleeve 250 is used to connect the movable shaft 230, and the threaded pin 260 is used to fix the position of the movable shaft 230.

[0034] The sound insulation and noise reduction component 300 includes a sound insulation layer 310 installed on the surface of the pump housing 110, a honeycomb layer 320 installed on the outer wall of the sound insulation layer 310, and a protective layer 330 installed on the outer wall of the honeycomb layer 320. The sound insulation layer 310 is a sound insulation cotton woven layer, and the honeycomb layer 320 is provided with honeycomb holes inside. Furthermore, the sound insulation layer 310 and the honeycomb layer 320 are used for sound insulation and noise reduction, and the protective layer 330 is used to improve the protection performance.

[0035] Combination Figure 1-Figure 3 The present embodiment is a pulp pump impeller clearance adjustment device, and the specific operation is as follows: a fixed impeller 220 is arranged on the surface of a hollow shaft 210, a movable shaft 230 is arranged in the inner cavity of the hollow shaft 210, and a movable impeller 240 is arranged on the movable shaft 230. By adjusting the length of the movable shaft 230 inserted into the inner cavity of the hollow shaft 210, it is convenient to adjust the distance between the movable impeller 240 and the fixed impeller 220, and the flexibility is high; in addition, by arranging a sound insulation layer 310, a honeycomb layer 320 and a protective layer 330 on the outer wall of the pump housing 110, the device and the sound insulation and noise reduction performance are improved, and the practicability is strong.

[0036] Although the present invention has been described above with reference to the embodiments, various modifications may be made thereto and parts thereof may be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the various features in the embodiments disclosed in the present invention may be used in combination with each other in any manner, and the fact that these combinations are not exhaustively described in this specification is only for the sake of omitting space and saving resources. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A pulp pump impeller clearance adjustment device, characterized in that: include: A pump body (100) comprises a pump casing (110), a sealing cover (120) arranged on one side of the pump casing (110), a feed inlet (130) arranged on one side of the top of the pump casing (110), and a discharge outlet (140) arranged on one side of the bottom of the pump casing (110); A clearance adjustment assembly (200) comprises a hollow shaft (210) arranged at one side of the inner cavity of a pump housing (110), a fixed impeller (220) arranged on the surface of the hollow shaft (210), a movable shaft (230) arranged in the inner cavity of the hollow shaft (210), a movable impeller (240) arranged on the surface of the movable shaft (230), a rotating sleeve (250) arranged in the middle of a sealing cover (120) and connected to the other end of the movable shaft (230), and a threaded pin (260) arranged on one side of the rotating sleeve (250); A sound insulation and noise reduction component (300) comprises a sound insulation layer (310) arranged on the surface of a pump housing (110), a honeycomb layer (320) arranged on the outer wall of the sound insulation layer (310), and a protective layer (330) arranged on the outer wall of the honeycomb layer (320).

2. A pulp pump impeller clearance adjustment device according to claim 1, characterized in that: The inner cavity of the feed port (130) is provided with a mesh grille.

3. The pulp pump impeller clearance adjustment device according to claim 1, characterized in that: A sealing ring is provided at the connection between the pump housing (110) and the sealing cover (120).

4. The pulp pump impeller clearance adjustment device according to claim 1, characterized in that: A positioning block is provided on one end surface of the movable shaft (230) close to the hollow shaft (210), and a matching positioning groove is provided in the inner cavity of the hollow shaft (210).

5. The pulp pump impeller clearance adjustment device according to claim 1, characterized in that: A threaded hole matching with the threaded pin (260) is provided on one end surface of the movable shaft (230) close to the rotating sleeve (250).

6. A pulp pump impeller clearance adjustment device according to claim 1, characterized in that: The sound insulation layer (310) is a sound insulation cotton woven layer.

7. The pulp pump impeller clearance adjustment device according to claim 1, characterized in that: The honeycomb layer (320) is provided with honeycomb holes inside.

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