CN218818020U - Coaxial double-power transmission and sewage lifting device - Google Patents

Abstract

The application discloses coaxial double dynamical derailleur and sewage hoisting device, including the shell body, connect drive arrangement and be used for power input's primary shaft, be connected the secondary shaft that is used for power take off with the primary shaft drive, still include with the coaxial setting of secondary shaft is rotated the cover and is established the third axle in the secondary shaft outside, the primary shaft pass through the gear train with the third axle drive is connected, rotate between primary shaft, secondary shaft and third axle and the shell body and be connected. The application provides a coaxial double dynamical derailleur can distribute same power supply to two independent output shafts, is used for the circulation of sewage to promote respectively and stirs the aeration, realizes single energy consumption, economic benefits. The application provides a sewage hoisting device adopts low-lift, and large-traffic helical blade promotes, compares in current centrifugal water pump, and the rotational speed of work is lower, and the resistance is littleer, and the flow is bigger, is suitable for sewage aeration more.

Description

Coaxial double-power transmission and sewage lifting device

Technical Field

The utility model relates to a sewage treatment plant technical field especially relates to a mechanical aeration device for sewage aeration, particularly is a coaxial double dynamical derailleur and sewage hoisting device.

Background

An aeration tank (aeration basin) is a biochemical reactor designed according to the characteristics of microorganisms, and the degradation degree of organic pollutants mainly depends on the designed aeration reaction conditions. The aeration tank utilizes an activated sludge process to treat sewage, and certain sewage retention time is provided in the tank to meet the oxygen quantity required by aerobic microorganisms and the mixing condition of full contact of sewage and activated sludge. The aeration tank mainly comprises a tank body, an aeration system and a water inlet and a water outlet. The tank body is generally made of reinforced concrete, and the plane shape of the tank body is rectangular, square, circular and the like.

Mechanical aeration generally involves the rotation of a mechanical impeller mounted in an aeration tank to vigorously agitate the wastewater in the tank to dissolve oxygen in the air into the water. The impeller is arranged on the surface of the waste water in the tank for aeration, which is called surface aeration. The device promotes the continuous circular flow of the waste water in the pool through the water lifting action of the impeller, and continuously updates the gas-liquid contact surface to increase the oxygen absorption amount. The existing mechanical aeration adopts an impeller stirring mode to stir water at fixed points only and can not carry out uniform aeration on sewage in the whole aeration tank, so that the sewage aeration is uneven. In order to improve this problem, need circulate the promotion to sewage in the aeration, in order to avoid setting up sewage alone and promote and sewage mixs the increase cost, lead to the energy consumption to increase simultaneously, the utility model provides a coaxial double dynamical gearbox can satisfy the demand that same power supply realized sewage promotion and mix two aspects to can be at the compatibility of sewage aeration degree of consistency and energy-conserving two aspects.

SUMMERY OF THE UTILITY MODEL

In order to uniformly stir the sewage in the aeration tank and reduce the aeration energy consumption as much as possible, the application provides a coaxial dual-power transmission and a sewage lifting device. The application provides a coaxial double dynamical derailleur can distribute same power supply to two independent output shafts, is used for the circulation of sewage to promote respectively and stirs the aeration, realizes single energy consumption, economic benefits. The application provides a sewage hoisting device adopts low-lift, and large-traffic helical blade promotes, compares in current centrifugal water pump, and the rotational speed of work is lower, and the resistance is littleer, and the flow is bigger, is suitable for sewage aeration more.

In order to achieve the purpose, the technical scheme adopted by the application is as follows:

the utility model provides a coaxial double dynamical derailleur, includes the shell body, connects drive arrangement and is used for the primary shaft of power input, is connected the secondary shaft that is used for power take off with the primary shaft drive, still include with the coaxial setting of secondary shaft rotates the cover and establishes the third axle in the secondary shaft outside, the primary shaft pass through the gear train with the third axle drive is connected, rotate between primary shaft, secondary shaft and third axle and the shell body and be connected. The first shaft position input shaft is used for being connected with a power device such as a most commonly used motor, the second shaft is a first output shaft and used for being connected with a sewage lifting mechanism, and the third shaft is a second output shaft and used for being connected with a water stirring device to realize sewage aeration. Because the primary shaft pass through the gear train with third axle drive connection, can realize acceleration rate or speed reduction according to actual demand between primary shaft and the third axle to realize single power and realize two-way technological effect.

As one of the possible arrangements of the gear set, preferably, the gear set includes a fifth shaft rotatably connected to the outer housing, the fifth shaft is respectively provided with a fifth gear and a sixth gear, and the sixth gear is meshed with a seventh gear arranged on the first shaft; the fifth gear is engaged with a first gear fixedly mounted on the third shaft. The sizes of the fifth gear, the sixth gear, the seventh gear and the first gear can be adjusted according to an actual application scenario to achieve a speed increasing ratio or a speed reducing ratio suitable for the application scenario, and the speed increasing ratio or the speed reducing ratio adjustment should follow the following principle: firstly, whether the torque of a power device in driving connection with the first shaft can meet the requirements of application scenes or not should be considered; secondly, whether the actual power/rotating speed output is insufficient or surplus or not should be considered, and therefore the phenomenon that the structure is damaged due to overload or unnecessary energy consumption waste is caused due to surplus power is avoided.

As another possible embodiment of the gear set, preferably, the gear set includes a fifth shaft and a fourth shaft rotatably connected to the outer housing, the fifth shaft is provided with a fifth gear and a sixth gear, and the sixth gear is engaged with a seventh gear provided on the first shaft; the fifth gear is fixedly mounted on the fourth shaft, and a second gear meshed with the first gear on the third shaft is fixedly arranged on the fourth shaft.

For better realization of coaxial dual-power output, preferably, the first shaft and the second shaft adopt coaxial fixed connection, the second shaft is rotationally connected with the third shaft through a plurality of first bearings, the third shaft outer side wall is rotationally connected with the outer shell through the second bearing, the outer shell is further towards the third shaft is located the inside one end of the outer shell and extends to form a convex part for supporting the end of the third shaft, and the convex part is internally provided with a third bearing for fixing the position of the third shaft.

As the extension scheme of this application, preferably, still including rotating the sixth axle that sets up inside the shell body, on the sixth axle fixedly be provided with seventh gear engagement's eighth gear, and with the first bevel gear of the coaxial setting of eighth gear, it is connected with the seventh axle still to rotate on the shell body, seventh axle one end fixedly connected with and first bevel gear engagement's second bevel gear, the seventh axle other end extends to the shell body is outside, be provided with a plurality of fifth bearings between shell body and the seventh axle.

The application also provides a sewage lifting device which is used for lifting the sewage of a sewage aeration tank and comprises the coaxial dual-power transmission disclosed above, a motor in driving connection with the first shaft, a spiral blade which is used for lifting the sewage and a water suction pipe which is adapted to the spiral blade and accommodates the spiral blade to form a sewage circulation channel, wherein the second shaft is fixedly connected with the spiral blade; and a plurality of water stirring mechanisms distributed in a circular array are fixedly arranged on the circumferential side wall of the third shaft, and the water stirring mechanisms are positioned on the outer peripheral side of the water outlet end of the water suction pipe.

In order to further increase the aeration effect, it is preferable that a blower for sending air into the water suction pipe is drivingly connected to the seventh shaft.

Has the beneficial effects that:

the application provides a coaxial double dynamical derailleur can distribute same power supply to two independent output shafts, is used for the circulation of sewage to promote respectively and stirs the aeration, realizes single energy consumption, economic benefits. The sewage lifting device provided by the application adopts the low-lift and large-flow helical blades for lifting, and compared with the existing centrifugal water pump, the sewage lifting device has the advantages that the working rotating speed is lower, the resistance is smaller, the flow is larger, and the sewage lifting device is more suitable for sewage aeration; meanwhile, air can be mixed in before stirring and aeration, so that sewage can have more aeration opportunities, and the aeration efficiency is greatly improved.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without inventive exercise.

Figure 1 is the utility model discloses derailleur structure axonometric diagram.

Fig. 2 isbase:Sub>A schematic view of fig. 1 taken in full section along the cut-away symbolbase:Sub>A-base:Sub>A.

FIG. 3 is a schematic view of FIG. 1 taken along the cut line B-B.

Fig. 4 is a schematic view of fig. 3 taken in full section along section C-C.

Fig. 5 is a schematic view of the sewage lifting device of the utility model.

Fig. 6 is a front view of fig. 5.

Fig. 7 is a schematic view of fig. 6 taken along the cut line D-D.

Fig. 8 is a schematic structural view of a belt water stirring mechanism of the sewage lifting device.

In the figure: 1-an outer shell; 2-a first axis; 3-a second axis; 4-a third axis; 5-a first bearing; 6-a second bearing; 7-a third bearing; 8-a first gear; 9-a second gear; 10-a third gear; 11-fourth axis; 12-fifth gear; 13-sixth gear; 14-fifth axis; 15-seventh gear; 16-eighth gear; 17-sixth axis; 18-a first bevel gear; 19-a second bevel gear; 20-a fifth bearing; 21-seventh axis; 100-a transmission; 200-a motor; 201-a suction pipe; 202-helical blades; 203-a blower; 204-water stirring mechanism.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without making any creative effort belong to the protection scope of the present application.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined or explained in subsequent figures.

In the description of the present application, it should be noted that if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are used for indicating the orientation or positional relationship based on the orientation or positional relationship shown in the drawings or the orientation or positional relationship which is usually placed when the product of the application is used, the description is only for convenience and simplicity, and the indication or suggestion that the referred device or element must have a specific orientation, be constructed in a specific orientation and be operated, and thus, should not be construed as limiting the present application. Furthermore, the appearances of the terms "first," "second," and the like in the description herein are only used for distinguishing between similar elements and are not intended to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical" and the like when used in the description of the present application do not require that the components be absolutely horizontal or overhanging, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present application, it should also be noted that unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" should be construed broadly and may include, for example, a fixed connection, a detachable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

Example 1:

with reference to the accompanying drawings of the specification, fig. 1-4 show a coaxial dual-power transmission 100, which comprises an outer shell 1, a first shaft 2 connected with a driving device for power input, a second shaft 3 connected with the first shaft 2 in a driving manner and used for power output, and a third shaft 4 coaxially arranged with the second shaft 3 and rotatably sleeved on the outer side of the second shaft 3, wherein the first shaft 2 is in driving connection with the third shaft 4 through a gear set, and the first shaft 2, the second shaft 3, the third shaft 4 and the outer shell 1 are rotatably connected. The first shaft 2-position input shaft is used for being connected with a power device such as a most commonly used motor, the second shaft 3 is a first output shaft and is used for being connected with a sewage lifting mechanism, and the third shaft 4 is a second output shaft and is used for being connected with a water stirring device to achieve sewage aeration. Because the first shaft 2 pass through the gear train with the third shaft 4 drive connection, can realize acceleration rate or speed reduction according to actual demand between first shaft 2 and the third shaft 4 to realize single power and realize two-way technological effect.

Example 2:

referring to fig. 1 to 4, the present embodiment of the invention shows a reduction gear set structure, specifically, the gear set includes a fifth shaft 14 rotatably connected to the outer housing 1, a fifth gear 12 and a sixth gear 13 are respectively mounted on the fifth shaft 14, and the sixth gear 13 is meshed with a seventh gear 15 disposed on the first shaft 2; the fifth gear wheel 12 meshes with the first gear wheel 8 fixedly mounted on the third shaft 4. The sizes of the fifth gear 12, the sixth gear 13, the seventh gear 15 and the first gear 8 can be adjusted according to the actual application scenario to reach a speed increasing ratio or a speed reducing ratio suitable for the application scenario, and the speed increasing ratio or the speed reducing ratio adjustment should follow the following principle: firstly, whether the torque of the power device in driving connection with the first shaft 2 can meet the requirements of application scenarios or not should be considered; secondly, whether the actual power/rotating speed output is insufficient or surplus or not should be considered, and therefore the phenomenon that the structure is damaged due to overload or unnecessary energy consumption waste is caused due to surplus power is avoided.

Example 3:

as an alternative to embodiment 2, the present embodiment is designed with a further speed reduction structure, compared to embodiment 2, a set of speed reduction gears is added in the present embodiment, specifically, as shown in fig. 1 to fig. 4 in conjunction with the description, the gear set includes a fifth shaft 14 and a fourth shaft 11 rotationally connected to the outer shell 1, a fifth gear 12 and a sixth gear 13 are respectively mounted on the fifth shaft 14, and the sixth gear 13 is meshed with a seventh gear 15 disposed on the first shaft 2; fifth gear 12 with fixed mounting be in the meshing of the last third gear 10 of fourth axle 11, still fixed be provided with on the fourth axle 11 with the last second gear 9 that meshes of the last first gear 8 of third axle 4.

Referring to fig. 2 and 4, when power is input from the seventh gear 15, the power sequentially passes through the sixth gear 13, the fifth gear 12, the third gear 10 and the second gear 9, and finally is output through the first gear 8 to reduce the speed step by step, so that the effects of reducing the speed and increasing the torque are realized, and the water stirring mechanism with larger driving resistance is facilitated.

In order to better realize coaxial dual-power output, in this embodiment, the first shaft 2 and the second shaft 3 are connected in a coaxial fixed manner, the second shaft 3 is connected with the third shaft 4 in a rotating manner through a plurality of first bearings 5, the outer side wall of the third shaft 4 is connected with the outer shell 1 in a rotating manner through the second bearing 6, the outer shell 1 further extends to the end head of the end of the third shaft 4 located inside the outer shell 1 to form a convex part for supporting the end head of the third shaft 4, and the convex part is internally provided with a third bearing 7 for fixing the position of the third shaft 4, as shown in fig. 2.

Example 4:

as an extension of the present application, referring to fig. 2 in the specification, the transmission in this embodiment further includes a sixth shaft 17 rotatably disposed inside the outer housing 1, an eighth gear 16 engaged with the seventh gear 15 and a first bevel gear 18 coaxially disposed with the eighth gear 16 are fixedly disposed on the sixth shaft 17, a seventh shaft 21 is further rotatably connected to the outer housing 1, one end of the seventh shaft 21 is fixedly connected with a second bevel gear 19 engaged with the first bevel gear 18, the other end of the seventh shaft 21 extends to the outside of the outer housing 1, and a plurality of fifth bearings 20 are disposed between the outer housing 1 and the seventh shaft 21. The seventh shaft 21 can be used to additionally drive a small load device, such as a blower, so that the sewage can be firstly contacted with the air in the lifting process, and the aeration effect is improved.

Example 5:

the present embodiment provides a sewage lifting device, which is shown in fig. 5-8 in detail, and is used for lifting sewage in a sewage aeration tank, and comprises the above-mentioned coaxial dual-power transmission, and further comprises a motor 200 in driving connection with a first shaft 2, wherein a helical blade 202 for lifting sewage is fixedly connected to the second shaft 3, and a water suction pipe 201 which is adapted to the helical blade 202 and accommodates the helical blade 202 to form a sewage flow channel; a plurality of water stirring mechanisms 204 distributed in a circular array are fixedly mounted on the circumferential side wall of the third shaft 4, and the water stirring mechanisms 204 are positioned on the outer circumferential side of the water outlet end of the water suction pipe 201. In order to further increase the aeration effect, in the embodiment, a blower 203 for sending air into the water suction pipe 201 is drivingly connected to the seventh shaft 21.

The working principle is as follows: the motor 200 is used as a power device to provide motive power so as to drive the second shaft 3, the third shaft 4 and the seventh shaft 21 of the transmission 100 to rotate simultaneously according to a preset rotating speed, respectively drive the helical blades 202 to rotate to lift sewage, drive the water stirring mechanism 204 to stir and aerate the sewage lifted by the helical blades 202, and drive the air blower 203 to rotate to pump air into the water suction pipe 201, so that the sewage can be mixed and contacted with air in advance in the lifting process, and the aeration efficiency is improved. The technical advantage of this embodiment is that the excellent low lift of the helical blade 202 is fully utilized, and the ability of large-flow sewage lifting lifts the sewage at different positions at the bottom of the aeration tank to the water stirring mechanism 204 for water stirring, so as to achieve the effect of full aeration.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims (7)

1. A coaxial dual-power transmission comprises an outer shell (1), a first shaft (2) connected with a driving device for power input, and a second shaft (3) connected with the first shaft (2) in a driving mode for power output, and is characterized in that: still include with second shaft (3) coaxial setting and rotate the cover and establish third axle (4) in the second shaft (3) outside, first axle (2) through the gear train with third axle (4) drive connection, rotate between first axle (2), second shaft (3) and third axle (4) and shell body (1) and be connected.

2. The coaxial dual-power transmission of claim 1, wherein: the gear set comprises a fifth shaft (14) which is rotationally connected with the outer shell (1), a fifth gear (12) and a sixth gear (13) are respectively arranged on the fifth shaft (14), and the sixth gear (13) is meshed with a seventh gear (15) arranged on the first shaft (2); the fifth gear (12) meshes with a first gear (8) fixedly mounted on the third shaft (4).

3. The coaxial dual-power transmission of claim 1, wherein: the gear set comprises a fifth shaft (14) and a fourth shaft (11) which are rotationally connected with the outer shell (1), a fifth gear (12) and a sixth gear (13) are respectively installed on the fifth shaft (14), and the sixth gear (13) is meshed with a seventh gear (15) arranged on the first shaft (2); fifth gear (12) with fixed mounting third gear (10) meshing on fourth shaft (11), still fixed be provided with on fourth shaft (11) with first gear (8) on third shaft (4) meshing second gear (9).

4. The coaxial dual-power transmission of claim 1, wherein: coaxial fixed connection is adopted in primary shaft (2) and secondary shaft (3), rotate through a plurality of first bearings (5) between secondary shaft (3) and third axle (4) and be connected, rotate through second bearing (6) between third axle (4) lateral wall and shell body (1) and be connected, shell body (1) still to third axle (4) are located the inside one end of shell body (1) and extend and form and are used for supporting the convex part at third axle (4) end, install in the convex part and be used for fixing third bearing (7) of third axle (4) position.

5. A coaxial dual-power transmission according to any one of claims 2 to 3, wherein: the novel gear transmission mechanism is characterized by further comprising a sixth shaft (17) rotatably arranged inside the outer shell (1), an eighth gear (16) meshed with the seventh gear (15) and a first bevel gear (18) coaxially arranged with the eighth gear (16) are fixedly arranged on the sixth shaft (17), a seventh shaft (21) is further rotatably connected onto the outer shell (1), one end of the seventh shaft (21) is fixedly connected with a second bevel gear (19) meshed with the first bevel gear (18), the other end of the seventh shaft (21) extends to the outside of the outer shell (1), and a plurality of fifth bearings (20) are arranged between the outer shell (1) and the seventh shaft (21).

6. A sewage lifting device for lifting sewage in a sewage aeration tank, comprising the coaxial dual-power transmission of claim 5, wherein: the sewage treatment device also comprises a motor (200) in driving connection with the first shaft (2), wherein the second shaft (3) is fixedly connected with a helical blade (202) used for lifting sewage, and a water suction pipe (201) which is adaptive to the helical blade (202) and accommodates the helical blade (202) to form a sewage flow channel; a plurality of water stirring mechanisms (204) distributed in a circular array are fixedly mounted on the circumferential side wall of the third shaft (4), and the water stirring mechanisms (204) are positioned on the outer peripheral side of the water outlet end of the water suction pipe (201).

7. The sewage lifting device of claim 6, wherein: a blower (203) for sending air into the water suction pipe (201) is connected to the seventh shaft (21) in a driving manner.

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