Dredging pump bushing with noise reduction function

Abstract

The dredging pump bushing with the noise reduction function comprises an installation sleeve and a cavity, the cavity is integrally arranged at the middle end in the installation sleeve in an annular direction, the circle center of the cavity in the annular direction and the circle center of the installation sleeve are concentric, and a noise reduction assembly is arranged in the installation sleeve. According to the noise reduction device for the dredge pump, noise in the dredge pump is absorbed through the double sound absorption effect of the sound absorption sleeve and the sound absorption ring, namely, noise reduction treatment is conducted on the noise in the dredge pump in a double sound absorption mode, and therefore the noise reduction effect of the noise reduction device on the dredge pump is greatly improved through the noise reduction device for the dredge pump. Through the design of the telescopic function, the mounting sleeve and the dredge pumps of different specifications and sizes can be quickly disassembled and assembled, the convenience of combining or separating the mounting sleeve and the dredge pumps is improved, and therefore by means of the device, the universality of matched use of the mounting sleeve and the dredge pumps of different models is ensured, and the use effect of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of pump body parts, in particular to a dredging pump bushing with a noise reduction function. Background Art

[0002] The mud pump is the main equipment of the hydraulic dredging engineering ship. It mainly uses the movement of water to achieve the purpose of dredging. It loosens the underwater soil layer through mechanical or high-pressure water cutting, mixes the mud and water, and forms a mud-water mixture (mud) of a certain concentration. The mud is then sucked into the mud pump through the vacuum of the mud pump suction port installed on the ship, and discharged to the mud tank of the dredger or directly discharged to the mud barge beside the side or transported to the filling area through the mud discharge pipeline to achieve the purpose of dredging and filling.

[0003] When a mud pump is in use, the connection between the internal parts is often connected by a bushing, but the existing bushings for mud pumps do not have a noise reduction function, and the noise generated during use is relatively large, causing noise pollution to the working environment. The patent name of the announcement number "CN209129942U" is: A bushing for a slurry pump with shock absorption and noise reduction. The public document solves the above problems, but the device in the public document absorbs the noise inside the pump body by setting a reserved hole. This noise reduction method is too simple and has a poor noise reduction effect. Based on this, the utility model designs a dredging pump bushing with a noise reduction function to solve the above problems. Utility Model Content

[0004] The utility model aims to provide a dredging pump bushing with a noise reduction function to solve the problems raised by the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a dredging pump bushing with noise reduction function, comprising a mounting sleeve and a cavity, the cavity is annular and integrally arranged at the middle end of the mounting sleeve, the center of the annular cavity is concentric with the center of the mounting sleeve, a noise reduction component is arranged inside the mounting sleeve, the noise reduction component comprises a sound-absorbing sleeve fixedly arranged inside the mounting sleeve, a plurality of makeshift holes are integrally arranged at the middle end of the sound-absorbing sleeve, a plurality of avoidance holes are integrally arranged at the middle end of the mounting sleeve, the avoidance holes and the makeshift holes are both through-hole designs, a plurality of sound-absorbing rings are integrally arranged from left to right inside the cavity, a plurality of mounting holes are integrally arranged inside the sound-absorbing ring, and the mounting holes are through-hole designs.

[0006] Furthermore, the sound absorbing sleeve and the sound absorbing ring are composed of a metal plate and a sound absorbing material, and the center of the sound absorbing sleeve and the center of the installation sleeve are in a concentric design state.

[0007] Furthermore, guide grooves are integrally provided at the four corners inside the installation sleeve, and a first sliding block is slidably connected inside the guide groove.

[0008] Furthermore, the outer fixing sleeve of the first sliding block is provided with a connecting ring, and the center of the connecting ring is in a concentric design state with the center of the mounting sleeve.

[0009] Furthermore, a slide groove is integrally provided in a circular shape inside the connecting ring, and the center of the circular slide groove is concentric with the center of the connecting ring.

[0010] Furthermore, second sliding blocks are slidably connected at the upper and lower ends of the slide groove, and the second sliding blocks at the upper and lower ends are mirror-distributed with the axis of the mounting sleeve as the center.

[0011] Furthermore, the outer fixing sleeve of the second sliding block is provided with an internal thread sleeve, and the center of the internal thread sleeve is concentric with the center of the installation sleeve.

[0012] Furthermore, the diameter of the avoidance hole is equal to the diameter of the give-way hole, and the avoidance hole and the give-way hole are designed to correspond to each other one by one, and the sound absorbing ring and the avoidance hole are designed to be staggered with each other.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. The utility model absorbs the noise inside the mud pump through the dual sound-absorbing effect of the sound-absorbing sleeve and the sound-absorbing ring, that is, the present application reduces the noise inside the mud pump through the double sound-absorbing method. It can be seen that by using the device in the present application, the noise reduction effect of the device on the mud pump is greatly improved.

[0015] 2. The utility model can quickly disassemble and assemble the installation sleeve and mud pumps of different specifications and sizes through the design of the telescopic function, thereby improving the convenience of combining or separating the installation sleeve and the mud pump. It can be seen that by using the device in this application, the versatility of the installation sleeve and mud pumps of different models is ensured, that is, the use effect of the device is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 A front perspective view of a dredging pump bushing with noise reduction function according to the utility model;

[0018] Figure 2 A three-dimensional diagram of the internal structure of a dredging pump bushing with noise reduction function according to the utility model;

[0019] Figure 3 This is a side view of the interior of a dredging pump bushing with noise reduction function according to the utility model;

[0020] Figure 4 An exploded perspective view of the internal thread sleeve and the connecting ring;

[0021] Figure 5 It is a three-dimensional diagram of the mounting sleeve, the guide groove and the first sliding block.

[0022] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0023] Mounting sleeve, 2-cavity, 3-noise reduction component, 301-sound-absorbing sleeve, 302-allowance hole, 303-avoidance hole, 304-sound-absorbing ring, 305-mounting hole, 4-guide groove, 5-first slider, 6-connecting ring, 7-slide groove, 8-second slider, 9-inner thread sleeve. DETAILED DESCRIPTION

[0024] 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. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Example 1

[0025] like Figure 1 , Figure 2 , Figure 3 As shown, the device includes a mounting sleeve 1 and a cavity 2, the cavity 2 is annular and integrally arranged at the middle end of the mounting sleeve 1, the center of the annular cavity 2 is concentric with the center of the mounting sleeve 1, a noise reduction component 3 is arranged inside the mounting sleeve 1, the noise reduction component 3 includes a sound-absorbing sleeve 301 fixedly arranged inside the mounting sleeve 1, a plurality of makeshift holes 302 are integrally arranged at the middle end of the sound-absorbing sleeve 301, a plurality of avoidance holes 303 are integrally arranged at the middle end of the mounting sleeve 1, the avoidance holes 303 and the makeshift holes 302 are both through-hole designs, a plurality of sound-absorbing rings 304 are fixedly arranged from left to right inside the cavity 2, a plurality of mounting holes 305 are integrally arranged inside the sound-absorbing ring 304, and the mounting holes 305 are through-hole designs.

[0026] First, the sound entering the interior of the installation sleeve 1 is absorbed by the sound-absorbing sleeve 301, thereby allowing the sound-absorbing sleeve 301 to reduce the noise inside the installation sleeve 1. In addition, through the design of the give way hole 302 and the avoidance hole 303, the interior of the cavity 2 and the interior of the sound-absorbing sleeve 301 are connected. At this time, the sound-absorbing ring 304 inside the cavity 2 absorbs the sound inside the installation sleeve 1, thereby allowing the sound-absorbing ring 304 to reduce the noise inside the installation sleeve 1. At the same time, the installation hole 305 can prevent the sound-absorbing ring 304 from isolating the internal space of the cavity 2, ensuring that the several sound-absorbing rings 304 arranged inside the cavity 2 can absorb the sound inside the installation sleeve 1 at the same time, thereby improving the sound absorption effect of the sound-absorbing ring 304. In the above manner, the sound-absorbing sleeve 301 and the sound-absorbing ring 304 perform multiple noise reduction processes on the sound inside the installation sleeve 1, thereby improving the noise reduction effect on the interior of the installation sleeve 1. Example 2

[0027] like Figure 1 , Figure 2 , Figure 4 , Figure 5 As shown, the sound absorbing sleeve 301 and the sound absorbing ring 304 are composed of a metal plate and a sound absorbing material. The center of the sound absorbing sleeve 301 is in a concentric design state with the center of the installation sleeve 1. The installation sleeve 1 is integrally provided with guide grooves 4 at the four corners inside, and a first slider 5 is slidably connected inside the guide groove 4. A connecting ring 6 is provided on the outer fixed sleeve of the first slider 5. The center of the connecting ring 6 is in a concentric design state with the center of the installation sleeve 1. A slide groove 7 is integrally provided inside the connecting ring 6 in an annular direction. The center of the slide groove 7 is in an annular direction and the center of the connecting ring 6 is in a concentric design state. The center of the ring 6 is in a concentric design, and the second sliders 8 are slidably connected at the upper and lower ends of the slide groove 7. The second sliders 8 at the upper and lower ends are mirror-distributed with the axis of the mounting sleeve 1 as the center. The outer fixed sleeve of the second slider 8 is provided with an internal threaded sleeve 9, and the center of the internal threaded sleeve 9 is in a concentric design with the center of the mounting sleeve 1. The diameter of the avoidance hole 303 is equal to the diameter of the giveway hole 302, and the avoidance hole 303 and the giveway hole 302 are in a one-to-one corresponding design, and the sound-absorbing ring 304 and the avoidance hole 303 are in a mutually staggered design.

[0028] When the staff needs to assemble the installation sleeve 1 inside the mud pump, according to the size of the installation space inside the mud pump, the staff first pulls the internal threaded sleeves 9 on the left and right sides, so that the internal threaded sleeves 9 drive the second slider 8 to move along the direction of the connecting ring 6 together with the first slider 5 along the guide groove 4, until the internal threaded sleeve 9 and the part to be installed inside the mud pump fit each other, and then rotate the internal threaded sleeve 9, so that the internal threaded sleeve 9 drives the second slider 8 to rotate along the direction of the slide groove 7, so that the internal threaded sleeve 9 and the inside of the mud pump are in a threaded connection state. In addition, when the internal threaded sleeve 9 is threadedly connected to the inside of the mud pump, The internal threaded sleeve 9 drives the first slider 5 to move along the outer direction of the guide groove 4, ensuring the stability of the internal threaded connection between the internal threaded sleeve 9 and the internal thread of the mud pump. Through the above method, the overall length of the device can be adjusted, so that the installation sleeve 1 can be assembled with mud pumps of different specifications and sizes. When the installation sleeve 1 is damaged and needs to be replaced, it is only necessary to reverse the internal threaded sleeve 9 to separate the internal threaded sleeve 9 from the connection area inside the mud pump, and then move two internal threaded sleeves 9 towards each other, thereby shortening the length of the device, and the staff can easily take the shortened device out of the mud pump.

Claims

1. A dredging pump bushing with noise reduction function, comprising a mounting sleeve (1) and a cavity (2), characterized in that: The cavity (2) is annularly arranged and integrally provided at the middle end of the interior of the mounting sleeve (1); the center of the annular cavity (2) is concentric with the center of the mounting sleeve (1); a noise reduction component (3) is arranged inside the mounting sleeve (1); the noise reduction component (3) comprises a sound absorbing sleeve (301) fixedly arranged inside the mounting sleeve (1); a plurality of clearance holes (302) are integrally arranged at the middle end of the interior of the sound absorbing sleeve (301); a plurality of avoidance holes (303) are integrally arranged at the middle end of the interior of the mounting sleeve (1); the avoidance holes (303) and the clearance holes (302) are both through-hole designed; a plurality of sound absorbing rings (304) are fixedly arranged from left to right inside the cavity (2); a plurality of mounting holes (305) are integrally arranged inside the sound absorbing ring (304); and the mounting holes (305) are through-hole designed.

2. According to claim 1, a dredging pump bushing with noise reduction function is characterized in that: The sound absorbing sleeve (301) and the sound absorbing ring (304) are composed of a metal plate and a sound absorbing material, and the center of the circle of the sound absorbing sleeve (301) and the center of the circle of the installation sleeve (1) are in a concentric design state.

3. The dredging pump bushing with noise reduction function according to claim 1, characterized in that: The four corners of the installation sleeve (1) are integrally provided with guide grooves (4), and a first sliding block (5) is slidably connected inside the guide groove (4).

4. The dredging pump bushing with noise reduction function according to claim 3, characterized in that: The first sliding block (5) is provided with an external fixing sleeve with a connecting ring (6), and the center of the connecting ring (6) is in a concentric design state with the center of the mounting sleeve (1).

5. A dredging pump bushing with noise reduction function according to claim 4, characterized in that: The connecting ring (6) is provided with a slide groove (7) in an annular shape inside, and the center of the annular slide groove (7) is concentric with the center of the connecting ring (6).

6. The dredging pump bushing with noise reduction function according to claim 5, characterized in that: Second sliding blocks (8) are slidably connected at the upper and lower ends of the slide groove (7), and the second sliding blocks (8) at the upper and lower ends are mirror-distributed with the axis of the mounting sleeve (1) as the center.

7. A dredging pump bushing with noise reduction function according to claim 6, characterized in that: The outer fixing sleeve of the second sliding block (8) is provided with an internal thread sleeve (9), and the center of the circle of the internal thread sleeve (9) is designed to be concentric with the center of the circle of the mounting sleeve (1).

8. The dredging pump bushing with noise reduction function according to claim 1, characterized in that: The diameter of the avoidance hole (303) is equal to the diameter of the clearance hole (302), and the avoidance hole (303) and the clearance hole (302) are designed to correspond to each other one by one, and the sound absorbing ring (304) and the avoidance hole (303) are designed to be staggered with each other.

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