Bridge breaking structure of sludge screw pump

Abstract

A kind of bridge breaking structure of sludge screw pump, including shell, motor group, main shaft, screw, the shell is provided with feed hopper, it is characterized in that: the main shaft is coaxially provided with sludge breaking piece, rotating door piece between screw, the main shaft is provided with key type protruding portion along radial direction, the rotating door piece includes shaft sleeve part, connecting arm, arc baffle part, expansion piece, the shaft sleeve part is equipped with the inner hole with the outer diameter of main shaft adaptation, the inner hole wall is coaxially provided with the annular groove with the diameter of key type protruding portion adaptation, axial width adaptation, the annular groove is provided with several expansion holes around the center of circle equal division, the expansion piece is arranged in expansion hole and does sliding fit, the expansion piece rotates with rotating door piece angle, by gravity, exceeds expansion hole and key type protruding portion and forms synchronous rotation by abutting, or retract in expansion hole and let key type protruding portion pass through;The arc baffle part gradually rotates with the main shaft, intermittently closes, opens feed inlet.

Description

Technical Field

[0001] This utility model relates to the technical field of sludge conveying equipment, specifically to a bridge-breaking structure for a sludge screw pump. Background Technology

[0002] In the field of wastewater treatment, with the acceleration of urbanization and the expansion of industrial scale, the amount of wastewater generated is constantly increasing, and the demand for sludge treatment technology is becoming increasingly urgent. Sludge screw pumps are usually used when treating wastewater. The working principle is to use the rotation of the eccentric single-helix screw in the double-helix bushing to push the sludge wastewater from the suction port to the discharge port along the spiral groove.

[0003] Currently, in order to prevent sludge from clogging or bridging at the feed inlet, sludge screw pumps are usually equipped with a special bridging component to break up sludge bridges and restore the fluidity of the sludge.

[0004] The problem with existing technology is that the traditional structure sets up a feed hopper and a stirring shaft at the feed inlet to form an enlarged space to stir and crush the input sludge, improve its fluidity, and prevent blockage.

[0005] However, with the continuous input of sludge, the feed hopper is also filled with sludge. The sludge is compressed due to the limited space, which still results in the formation of mud clumps and mud bridges.

[0006] Therefore, if the amount of sludge input at the feed hopper can be controlled to allow for relatively ample space during the sludge crushing process, it will prevent the sludge from being squeezed into clumps, thereby effectively crushing the sludge, ensuring smooth screw conveying, and avoiding blockages. Utility Model Content

[0007] To address the shortcomings of the aforementioned technologies, this invention provides a bridge-breaking structure for a sludge screw pump.

[0008] The technical solution of this utility model is as follows: A bridge-breaking structure for a sludge screw pump, comprising a housing, a motor unit, a main shaft, and a screw. The housing is provided with a feed hopper. A sludge crushing component and a rotating gate component are coaxially arranged between the main shaft and the screw. The main shaft is provided with a key-shaped protrusion along the radial direction. The rotating gate component includes a bushing part, a connecting arm, an arc-shaped baffle part, and a telescopic component. The bushing part is provided with an inner hole adapted to the outer diameter of the main shaft. The inner hole wall is coaxially provided with an annular groove adapted to the diameter and axial width of the key-shaped protrusion. A plurality of telescopic holes are equally divided around the center of the annular groove. The telescopic component is disposed in the telescopic holes for sliding engagement. The telescopic component rotates with the rotating gate component and, under the action of gravity, extends out of the telescopic hole to abut against the key-shaped protrusion to form synchronous rotation, or retracts into the telescopic hole to allow the key-shaped protrusion to pass through.

[0009] The feed hopper is provided with a feed inlet and a cavity. The outline of the feed inlet is adapted to the outline of the arc-shaped baffle and is provided with a track groove along the rotation path of the arc-shaped baffle. The arc-shaped baffle rotates gradually with the main shaft, intermittently closing and opening the feed inlet.

[0010] A further feature of this invention is that: the two ends of the sludge crushing component are provided with connecting bushings in the axial direction, the connecting bushings are provided with a first connecting through hole in the radial direction, the main shaft and the screw are respectively inserted into the connecting bushings, and a second connecting through hole is provided corresponding to the first connecting through hole; the main shaft and the screw are detachably bolted to the connecting bushings.

[0011] The sludge crusher is provided with stirring blades on its outer peripheral surface, the key-shaped protrusion is provided on the outer peripheral surface of the sludge crusher, and the rotating door is sleeved on the outer peripheral surface of the sludge crusher.

[0012] A further feature of this invention is that the stirring blade includes a spiral part and a connecting part. The spiral part is coaxially arranged with the sludge crushing component and has a diameter larger than that of the sludge crushing component, forming a gap between the spiral part and the outer peripheral surface of the sludge crushing component. The connecting part connects and fixes the spiral part to the outer peripheral surface of the sludge crushing component, and the spiral part pushes the sludge to move towards one side of the screw.

[0013] A further feature of this invention is that the rotating gate is located in the middle section of the sludge crushing component and the spiral part. The rotating gate is provided with several connecting arms and arc-shaped baffles evenly distributed around the center. The progressive rotation of the connecting arms cooperates with the spiral part to crush the sludge.

[0014] The beneficial effects of this utility model are as follows: as shown in the appendix to the specification. Figure 4 , 5 As shown, the telescopic component rotates with the rotating gate component, and under the action of gravity, it moves out of the telescopic hole and abuts against the key-shaped protrusion to form synchronous rotation, or it retracts into the telescopic hole to allow the key-shaped protrusion to pass through. This creates a speed difference between the rotating gate component and the main shaft. The arc-shaped baffle part intermittently closes and opens the feed inlet of the feed hopper, allowing sludge to enter the feed hopper in parts and blocking subsequent sludge. This prevents the cavity inside the feed hopper from being filled, providing ample space for the sludge crushing process, preventing it from being squeezed and compressed, thereby improving the crushing effect and avoiding screw blockage.

[0015] The gap formed between the spiral section and the outer circumferential surface of the sludge crusher, along with the staggered fit of the connecting arm, further enhances the crushing effect. Attached Figure Description

[0016] Figure 1 The structure of this utility model embodiment Figure 1 ;

[0017] Figure 2 The structure of this utility model embodiment Figure 2 ;

[0018] Figure 3 The structure of this utility model embodiment Figure 3 ;

[0019] Figure 4 The structure of this utility model embodiment Figure 4 ;

[0020] Figure 5 The structure of this utility model embodiment Figure 5 .

[0021] Among them, 1-shell, 11-feed hopper, 12-feed inlet, 2-motor unit, 3-main shaft, 4-screw, 5-sludge crushing component, 51-connecting bushing, 52-spiral part, 53-connecting part, 6-rotating door component, 61-shoulder part, 611-annular groove, 612-telescopic hole, 62-connecting arm, 63-arc baffle part, 64-telescopic component.

[0022] To better illustrate this embodiment, some parts in the accompanying drawings may be omitted, enlarged, or reduced, and do not represent the actual size of the product. Furthermore, the accompanying drawings are for illustrative purposes only and should not be construed as limiting this patent. Detailed Implementation

[0023] To make the technical solution and advantages of this application clearer, the technical solution of this application will be described in a clearer and more complete manner below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some embodiments of this application, and are only used to explain this application, not to limit this application. It should be noted that, for ease of description, only the parts related to this application are shown in the accompanying drawings. Other related parts can be referred to the general design. In the absence of conflict, the embodiments and technical features in the embodiments of this application can be combined with each other to obtain new embodiments.

[0024] The present invention will now be described in detail with reference to the accompanying drawings, such as... Figure 1-4 As shown,

[0025] A bridge-breaking structure for a sludge screw pump (4-type pump) includes a housing 1, a motor unit 2, a main shaft 3, and a screw 4. The housing 1 is provided with a feed hopper 11. A sludge crushing component 5 and a rotating gate component 6 are coaxially arranged between the main shaft 3 and the screw 4. The main shaft 3 has a keyed protrusion 7 arranged radially. The rotating gate component 6 includes a bushing portion 61, a connecting arm 62, an arc-shaped baffle portion 63, and a telescopic component 64. The bushing portion 61 has an inner hole adapted to the outer diameter of the main shaft 3. The inner wall of the bore is coaxially provided with an annular groove 611 that matches the diameter and axial width of the key-shaped protrusion 7. A plurality of telescopic holes 612 are equally distributed around the center of the annular groove 611. The telescopic member 64 is disposed in the telescopic hole 612 for sliding engagement. The telescopic member 64 rotates with the rotating door member 6 and, under the action of gravity, extends out of the telescopic hole 612 to abut against the key-shaped protrusion 7 to form synchronous rotation, or retracts into the telescopic hole 612 to allow the key-shaped protrusion 7 to pass through.

[0026] The feed hopper 11 is provided with a feed inlet 12 and a cavity. The outline of the feed inlet 12 is adapted to the outline of the arc-shaped baffle part 63, and a track groove is provided along the rotation path of the arc-shaped baffle part 63. The arc-shaped baffle part 63 rotates gradually with the main shaft 3, intermittently closing and opening the feed inlet 12.

[0027] The sludge crushing component 5 is provided with connecting bushings 51 at both ends of the axial direction. The connecting bushings 51 are provided with first connecting through holes in the radial direction. The main shaft 3 and the screw 4 are respectively inserted into the connecting bushings 51, and a second connecting through hole is provided corresponding to the first connecting through hole. The main shaft 3 and the screw 4 are detachably bolted to the connecting bushings 51.

[0028] The sludge crusher 5 is provided with stirring blades on its outer peripheral surface, the key-shaped protrusion 7 is provided on the outer peripheral surface of the sludge crusher 5, and the rotating door 6 is sleeved on the outer peripheral surface of the sludge crusher 5.

[0029] The stirring blade includes a spiral part 52 and a connecting part 53. The spiral part 52 is coaxially arranged with the sludge crushing part 5 and its diameter is larger than that of the sludge crushing part 5, forming a gap between the spiral part 52 and the outer peripheral surface of the sludge crushing part 5. The connecting part 53 connects and fixes the spiral part 52 and the outer peripheral surface of the sludge crushing part 5. The spiral part 52 pushes the sludge to move towards one side of the screw 4.

[0030] The rotating gate component 6 is located in the middle section of the sludge crushing component 5 and the spiral part 52. The rotating gate component 6 is provided with a number of connecting arms 62 and arc-shaped baffles 63 evenly distributed around the center. The progressive rotation of the connecting arms 62 cooperates with the spiral part 52 to crush the sludge.

[0031] As per the instruction manual Figure 4 , 5As shown, the telescopic member 64 rotates with the rotating door member 6, and under the action of gravity, it goes out of the telescopic hole 612 and abuts against the key-shaped protrusion 7 to form synchronous rotation, or it retracts into the telescopic hole 612 to allow the key-shaped protrusion 7 to pass through. This creates a speed difference between the rotating door member 6 and the main shaft 3. The arc-shaped baffle 63 intermittently closes and opens the feed port 12 of the feed hopper 11, allowing sludge to enter the feed hopper 11 in parts and blocking subsequent sludge. This prevents the cavity inside the feed hopper 11 from being filled, providing ample space for the sludge crushing process, preventing it from being squeezed and compressed, thereby improving the crushing effect and avoiding blockage of the screw 4.

[0032] The gap formed between the spiral part 52 and the outer peripheral surface of the sludge crusher 5, along with the staggered cooperation with the connecting arm 62, further enhances the crushing effect.

[0033] The technical solution of this application has been described in conjunction with the preferred embodiments shown in the accompanying drawings. Those skilled in the art should understand that the scope of protection of this application is obviously not limited to these specific embodiments. Without departing from the principles of this application, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the scope of protection of this application.

Claims

1. A broken bridge structure of a sludge screw pump, comprising a shell, a motor set, a main shaft and a screw, wherein the shell is provided with a feeding hopper, and characterized in that: A sludge crushing component and a rotating door component are coaxially arranged between the main shaft and the screw. The main shaft has a key-shaped protrusion along the radial direction. The rotating door component includes a bushing, a connecting arm, an arc-shaped baffle, and a telescopic component. The bushing has an inner hole that matches the outer diameter of the main shaft. The inner hole wall has an annular groove that matches the diameter and axial width of the key-shaped protrusion. Several telescopic holes are equally spaced around the center of the annular groove. The telescopic component is set in the telescopic holes for sliding engagement. As the rotating door component rotates, the telescopic component moves out of the telescopic hole under the action of gravity and abuts against the key-shaped protrusion to form synchronous rotation, or it retracts into the telescopic hole to allow the key-shaped protrusion to pass through. The feed hopper is provided with a feed inlet and a cavity. The outline of the feed inlet is adapted to the outline of the arc-shaped baffle and is provided with a track groove along the rotation path of the arc-shaped baffle. The arc-shaped baffle rotates gradually with the main shaft, intermittently closing and opening the feed inlet.

2. The broken bridge structure of a sludge screw pump according to claim 1, characterized in that: The sludge crushing component is provided with connecting bushings at both ends along the axial direction. The connecting bushings are provided with first connecting through holes along the radial direction. The main shaft and the screw are respectively inserted into the connecting bushings, and a second connecting through hole is provided corresponding to the first connecting through hole. The main shaft and the screw are detachably bolted to the connecting bushings. The sludge crusher is provided with stirring blades on its outer peripheral surface, the key-shaped protrusion is provided on the outer peripheral surface of the sludge crusher, and the rotating door is sleeved on the outer peripheral surface of the sludge crusher.

3. The bridge-breaking structure of a sludge screw pump according to claim 2, characterized in that: The stirring blade includes a spiral part and a connecting part. The spiral part is coaxially arranged with the sludge crushing component and has a diameter larger than that of the sludge crushing component, forming a gap between the spiral part and the outer peripheral surface of the sludge crushing component. The connecting part connects and fixes the spiral part to the outer peripheral surface of the sludge crushing component. The spiral part pushes the sludge to move towards one side of the screw.

4. The bridge-breaking structure of a sludge screw pump according to claim 3, characterized in that: The rotating gate is located in the middle section of the sludge crushing component and the spiral section. The rotating gate is provided with several connecting arms and arc-shaped baffles evenly distributed around the center. The progressive rotation of the connecting arms cooperates with the spiral section to crush the sludge.

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