Shallow air floatation rotary positioning mechanism

Abstract

The utility model relates to a shallow air floatation rotary positioning mechanism, which comprises a central seat and a central pipe which is rotatably inserted into the central seat, the center seat comprises a seat ring transversely arranged below the center pipe, a pipe sleeve vertically fixed to the top of the seat ring and concentrically arranged outside the center pipe in a sleeving mode, and a lower backing ring fixedly arranged on the outer wall of the center pipe in a sleeving mode and located in the pipe sleeve. The packing is rotatably connected outside the central pipe in a sleeving manner, is positioned inside the pipe sleeve, and is concentrically arranged above the lower backing ring from top to bottom in sequence; according to the utility model, the matching precision between the water distribution pipe and the water outlet pipe is obviously improved, so that the coaxiality deviation of the water distribution pipe and the water outlet pipe in the relative rotation process is avoided, the relative axial displacement caused by vibration is avoided, and the working stability is ensured; in addition, a good lubricating mechanism is formed between the two, so that friction force is greatly reduced, the abrasion speed of the two is effectively reduced, and the service life is prolonged.

Description

Technical Field

[0001] The utility model relates to the field of shallow air flotation equipment, in particular to a shallow air flotation rotation positioning mechanism. Background Art

[0002] The emergence of shallow flotation equipment is a major breakthrough in flotation water purification technology. It changes the state of water inflow and dynamic water outflow to dynamic water inflow and static water outflow. It uses the "zero speed" principle to make the flotation body float vertically to the water surface in a relatively static environment, reducing the floating distance to a minimum and not being affected by the outlet flow rate. The theoretical pool depth is only about 450mm, and the sewage retention time in the flotation is only 3-5 minutes. The equipment volume is greatly reduced. In addition, the bubbles are evenly distributed, there is no dead zone of flotation, and the sludge scraping device has little disturbance to the water body, which greatly improves the purification rate. Shallow flotation equipment mainly consists of a pool body, a gyroscopic support, a water distribution device and a sludge treatment device. The pool body consists of a circular water tank, a circular separation tank and a circular collecting cylinder which are concentrically arranged from the outside to the inside. The water distribution device and the sludge treatment device are both arranged on a rotary bracket and can revolve around the pool body with the rotary bracket. The function of the water distribution device is to transfer the sewage and rotate continuously during the transfer process. The water distribution device mainly consists of a water outlet pipe vertically fixed at the center of the circular collecting cylinder and a water distribution pipe fixed on the rotary bracket. The opening at one end of the water distribution pipe is interconnected with the area between the circular water tank and the circular separation tank. The other end of the water distribution pipe is rotatably inserted into the water outlet pipe through an elbow joint.

[0003] However, the rotatable connection between the water distribution pipe and the water outlet pipe in the existing technology is too simple, and the matching accuracy between the two is low, which makes it easy for the two to produce coaxial deviation during the relative rotation process and produce relative axial displacement due to vibration, which in turn causes the two to get stuck, deform, or even detach during the relative rotation process, thereby affecting the stability of the work; in addition, the friction between the two is large and there is a lack of effective lubrication, which causes both to wear faster and have a shorter service life, and needs further improvement. Utility Model Content

[0004] In view of the current status of the above-mentioned existing technologies, the technical problem to be solved by the present invention is to provide a shallow air flotation rotary positioning mechanism that optimizes the rotatable connection relationship between the water distribution pipe and the water outlet pipe and significantly improves the matching accuracy between the two, thereby ensuring that the two will not get stuck, deformed, or even separate during the relative rotation process, thereby ensuring the stability of the work, and effectively slowing down the wear rate of the two to extend the service life.

[0005] The technical solution adopted by the present invention to solve the above-mentioned technical problems is: a shallow air flotation rotation positioning mechanism, characterized in that it includes a center seat and a center tube rotatably inserted in the center seat, the center seat includes a seat ring horizontally arranged below the center tube, a pipe sleeve vertically fixed on the top of the seat ring and concentrically sleeved on the outside of the center tube, a lower support ring sleeved and fixed on the outer wall of the center tube and located inside the pipe sleeve, and a plurality of packings rotatably sleeved on the outside of the center tube and all located inside the pipe sleeve and concentrically arranged above the lower support ring from top to bottom.

[0006] The center seat also includes a transparent cover that is sleeved outside the center tube and detachably fixed at the opening of the end of the tube sleeve, an upper pressure ring that is sleeved outside the center tube and located inside the tube sleeve and above a packing on the uppermost side, and a support ring that is rotatably sleeved outside the center tube and embedded inside the tube sleeve and located below the lower support ring.

[0007] The bottom of the transparent cover is pressed against the top of the upper pressure ring so as to be pressed against the top of the lower support ring with the help of each packing layer, and then the bottom of the support ring is pressed against the top of the seat ring with the help of the lower support ring, thereby limiting the lower support ring to prevent axial displacement of the center tube.

[0008] The top and bottom of each packing are provided with a plurality of oil inlet grooves uniformly distributed at equal angles along the circumferential direction, and an oil storage groove is provided between the edge of the inner opening of the bottom surface of each oil inlet groove located at the top of the packing and the edge of the inner opening of the bottom surface of the corresponding oil inlet groove located at the bottom of the packing.

[0009] Preferably, at least one concentrically distributed sealing ring is embedded in the top and bottom of the support ring, and the outer wall of each sealing ring located at the top of the support ring is fitted against the bottom of the lower support ring so that the support ring and the lower support ring are sealed to each other, and the outer wall of each sealing ring located at the bottom of the support ring is fitted against the top of the seat ring so that the support ring and the seat ring are sealed to each other.

[0010] Preferably, a plurality of vertically arranged clamping bolts evenly distributed at equal angles along the circumferential direction are threadedly inserted into the transparent cover, and the threaded end of each clamping bolt is pressed downwardly against the top of the upper pressure ring.

[0011] Preferably, at least one refueling hole is provided in the transparent cover, and the lower opening of the refueling hole is communicated with the interior of the pipe sleeve.

[0012] Preferably, a detachable sealing plug is embedded in each of the refueling holes.

[0013] Preferably, the packing is made of carbon fiber material.

[0014] Compared with the existing technology, the advantages of the present invention are: the present invention optimizes the rotatable connection relationship between the water distribution pipe and the water outlet pipe with the help of the mutually cooperating center tube and center seat, and at the same time significantly improves the matching accuracy between the two, thereby ensuring that the two will neither have coaxiality deviation nor relative axial displacement due to vibration during the relative rotation process, thereby completely avoiding the phenomenon of jamming, deformation, or even separation between the two during the relative rotation process, thereby ensuring the stability of the work; in addition, a good lubrication mechanism is formed between the two to greatly reduce friction, thereby effectively slowing down the wear rate of the two to extend the service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a cross-sectional structural diagram of the utility model;

[0016] Figure 2 This is a top view of the packing of the present invention;

[0017] Figure 3 This is a schematic diagram of the working state of the utility model. DETAILED DESCRIPTION

[0018] Unless otherwise defined, the technical or scientific terms used in this utility model shall have the usual meanings understood by persons of ordinary skill in the field to which this utility model belongs. The words "first", "second" and similar terms used in this utility model do not indicate any order, quantity or importance, but are only used to distinguish different components. Words such as "include" or "comprise" mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. Words such as "connect" or "connected" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0019] In order to keep the following description of the embodiments of the present invention clear and concise, the present invention omits detailed descriptions of known functions and known components.

[0020] like Figures 1-2As shown, a shallow air flotation rotary positioning mechanism includes a center seat 3 and a center tube 1 rotatably inserted into the center seat 3. The center seat 3 includes a seat ring 31 arranged horizontally below the center tube 1, a pipe sleeve 32 vertically fixed to the top of the seat ring 31 and concentrically sleeved on the outside of the center tube 1, a lower support ring 38 sleeved and fixed on the outer wall of the center tube 1 and located inside the pipe sleeve 32, and a plurality of packings 35 rotatably sleeved on the outside of the center tube 1 and all located inside the pipe sleeve 32 and concentrically arranged above the lower support ring 38 from top to bottom.

[0021] The center seat 3 also includes a transparent cover 34 that is sleeved outside the center tube 1 and detachably fixed to the end opening of the sleeve 32, an upper pressure ring 36 that is sleeved outside the center tube 1 and located inside the sleeve 32 and above a packing 35 on the upper side, and a support ring 39 that is rotatably sleeved outside the center tube 1 and embedded in the sleeve 32 and located below the lower support ring 38.

[0022] The bottom of the transparent cover 34 is pressed against the top of the upper pressure ring 36 so as to be laminated on the top of the lower support ring 38 with the help of each packing 35, and then the bottom of the support ring 39 is pressed against the top of the seat ring 31 with the help of the lower support ring 38, thereby limiting the lower support ring 38 to prevent axial displacement of the center tube 1.

[0023] The top and bottom of each packing 35 are provided with a plurality of oil inlet grooves 351 uniformly distributed at equal angles along the circumferential direction. An oil storage groove 352 is also provided between the edge of the inner opening of the bottom surface of each oil inlet groove 351 located at the top of the packing 35 and the edge of the inner opening of the bottom surface of the corresponding oil inlet groove 351 located at the bottom of the packing 35.

[0024] At least one concentrically distributed sealing ring 310 is embedded in the top and bottom of the support ring 39. The outer wall of each sealing ring 310 located at the top of the support ring 39 is fitted against the bottom of the lower support ring 38 so that the support ring 39 and the lower support ring 38 are sealed against each other. The outer wall of each sealing ring 310 located at the bottom of the support ring 39 is fitted against the top of the seat ring 31 so that the support ring 39 and the seat ring 31 are sealed against each other.

[0025] A plurality of vertically arranged clamping bolts 37 evenly distributed at equal angles along the circumferential direction are threadedly inserted into the transparent cover 34 , and the threaded end of each clamping bolt 37 is pressed downwardly against the top of the upper pressing ring 36 .

[0026] At least one oil filling hole 341 is defined in the transparent cover 34 , and the lower opening of the oil filling hole 341 is in communication with the interior of the pipe sleeve 32 .

[0027] A detachable sealing plug 4 is embedded in each refueling hole 341 .

[0028] A flange ring 33 is fixed to the end opening of the pipe sleeve 32 and is concentrically arranged and located below the transparent cover 34 . The flange ring 33 is detachably fixed to the transparent cover 34 .

[0029] The packing 35 is made of carbon fiber material.

[0030] Working principle:

[0031] like Figure 3 As shown, the frame structure of the shallow flotation equipment is mainly composed of a circular water pool 6, a circular separation pool 7 concentrically arranged inside the circular water pool 6, and a circular collecting tube 8 concentrically arranged inside the circular separation pool 7. When the shallow flotation equipment is in operation, sewage exists between the circular water pool 6 and the circular separation pool 7. A swivel bracket 9 is also provided above the circular water pool 6, the circular separation pool 7 and the circular collecting tube 8. The inner side of the swivel bracket 9 is rotatably connected to the top opening of the circular separation pool 7, and the outer side of the swivel bracket 9 is rotatably connected to the top opening of the circular water pool 6; a water distribution device and an inclined sludge treatment device are also provided in the swivel bracket 9. The sludge treatment device is mainly composed of a power motor 10, a skimmer 11 and a mud discharge pipe 12. The power motor 10, the skimmer 11 and the mud discharge pipe 12 are arranged on the swivel bracket from the outside to the inside. 9, the rotating shaft of the power motor 10 is arranged in the direction of the skimmer scoop 11 and fixed at the center of the outer end of the skimmer scoop 11, one end of the mud discharge pipe 12 is concentrically inserted into the inner end of the skimmer scoop 11 and is interconnected with the interior of the skimmer scoop 11, and the middle part of the mud discharge pipe 12 is rotatably mounted above the top opening of the circular separation tank 7 through a supporting mechanism 14; the water distribution device is mainly composed of a water distribution pipe 13, an elbow joint 5 and a water outlet pipe 2. The water distribution pipe 13 is fixed on the rotary bracket 9, and one end opening of the water distribution pipe 13 is downwardly arranged and located between the circular water pool 6 and the circular separation tank 7; the other end of the water distribution pipe 13 is sealed and fixed to one end of the elbow joint 5, and the water outlet pipe 2 is vertically and concentrically inserted into the inside of the circular collecting cylinder 8, and the other end of the elbow joint 5 is rotatably inserted into the inside of the upper end opening of the water outlet pipe 2. The above structure is the prior art.

[0032] Start the power motor 10 to rotate its rotating shaft, thereby driving the skimmer 11 and the mud discharge pipe 12 to rotate together. When the skimmer 11 rotates, the skimmer 11 will scoop the sludge floating on the surface of the sewage into the inside of the skimmer 11 and flow into the mud discharge pipe 12 with the help of the slope of the skimmer 11. The sludge inside the mud discharge pipe 12 eventually flows out into the circular collecting cylinder 8 with the help of its own slope; and the sludge treatment device will also follow the revolving bracket 9 while rotating, so that the skimmer 11 can collect the sludge at every part of the sewage surface, and the water distribution device will follow the revolving bracket 9 to revolve, and the water outlet pipe 2 will always remain stationary. The above principle is the existing technology.

[0033] However, the connection between the other end of the elbow joint 5 and the upper end opening of the water outlet pipe 2 is relatively simple, and the fitting accuracy between the two is low, which makes it easy for the two to produce coaxial deviation and relative axial displacement during relative rotation, thereby causing jamming, deformation, and even detachment; and the friction between the two is also large, the wear rate is fast, and the service life is short.

[0034] The function of the present invention is to weld the seat ring 31 concentrically to the upper opening of the water outlet pipe 2, and then weld the other end of the elbow joint 5 to the upper opening of the center pipe 1. When the elbow joint 5 revolves with the swivel bracket 9, it will drive the center pipe 1 to rotate synchronously. However, the center pipe 1 can always maintain good coaxiality with the water outlet pipe 2 under the limiting action of the multiple packings 35, thereby effectively ensuring the matching accuracy of relative rotation. In addition, lubricating oil can be added to the interior of the pipe sleeve 32 by means of the filling hole 341, and enter the oil storage tank 352 by means of the oil inlet groove 351 on each packing 35, thereby achieving a good lubrication effect between each packing 35 and the center pipe 1. At the same time, each sealing ring 310 on the support ring 39 is used to seal the interior and exterior of the pipe sleeve 32 to prevent lubricating oil leakage, thereby ensuring long-term effectiveness of the lubrication effect. In addition, the support ring 38 fixed on the center pipe 1 is pressed against the support ring 39 by the transparent cover 34 by the multiple packings 35 to effectively prevent axial displacement of the center pipe 1.

[0035] The utility model optimizes the rotatable connection relationship between the water distribution pipe 13 and the water outlet pipe 2 with the help of the mutually cooperating center pipe 1 and center seat 3, and at the same time significantly improves the matching accuracy between the two, thereby ensuring that the two will neither have coaxiality deviation nor relative axial displacement due to vibration during the relative rotation process, thereby completely avoiding the phenomenon of jamming, deformation, or even separation between the two during the relative rotation process, thereby ensuring the stability of the work; in addition, a good lubrication mechanism is formed between the two to greatly reduce friction, thereby effectively slowing down the wear rate of the two to extend the service life.

[0036] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A shallow air flotation rotation positioning mechanism, characterized in that: The center seat comprises a center tube rotatably inserted in the center seat, the center seat comprising a seat ring horizontally arranged below the center tube, a pipe sleeve vertically fixed to the top of the seat ring and concentrically sleeved on the outside of the center tube, a lower support ring sleeved and fixed on the outer wall of the center tube and located inside the pipe sleeve, and a plurality of packings rotatably sleeved on the outside of the center tube and all located inside the pipe sleeve and concentrically arranged above the lower support ring from top to bottom; The center seat also includes a transparent cover that is sleeved outside the center tube and detachably fixed to the end opening of the tube sleeve, an upper pressure ring that is sleeved outside the center tube and located inside the tube sleeve and above the uppermost packing, and a support ring that is rotatably sleeved outside the center tube and embedded in the tube sleeve and located below the lower support ring. The bottom of the transparent cover is pressed against the top of the upper pressure ring so as to be pressed against the top of the lower support ring by means of each packing layer, and then the bottom of the support ring is pressed against the top of the seat ring by means of the lower support ring, thereby limiting the lower support ring to prevent axial displacement of the center tube; The top and bottom of each packing are provided with a plurality of oil inlet grooves uniformly distributed at equal angles along the circumferential direction, and an oil storage groove is provided between the edge of the inner opening of the bottom surface of each oil inlet groove located at the top of the packing and the edge of the inner opening of the bottom surface of the corresponding oil inlet groove located at the bottom of the packing.

2. A shallow air-floating rotation positioning mechanism according to claim 1, characterized in that: At least one concentrically distributed sealing ring is embedded in the top and bottom of the support ring. The outer wall of each sealing ring located at the top of the support ring is fitted on the bottom of the lower support ring so that the support ring and the lower support ring are sealed to each other. The outer wall of each sealing ring located at the bottom of the support ring is fitted on the top of the seat ring so that the support ring and the seat ring are sealed to each other.

3. A shallow air-floating rotation positioning mechanism according to claim 1, characterized in that: The transparent cover is also threaded with a plurality of vertically arranged clamping bolts that are evenly distributed at equal angles along the circumferential direction, and the threaded end of each clamping bolt is pressed downwardly and tightened on the top of the upper pressure ring.

4. A shallow air-floating rotation positioning mechanism according to claim 1, characterized in that: At least one refueling hole is provided in the transparent cover, and the lower end opening of the refueling hole is communicated with the interior of the pipe sleeve.

5. A shallow air-floating rotation positioning mechanism according to claim 4, characterized in that: A detachable sealing plug is also embedded in each of the refueling holes.

6. The shallow air floating rotation positioning mechanism according to claim 1, characterized in that: The packing is made of carbon fiber material.

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