Impeller pump

Abstract

The utility model discloses an impeller pump which comprises a shell. The transmission assembly is installed in the shell, the transmission assembly comprises a gearbox, an upper transmission part and a lower transmission part are arranged in the gearbox, and impellers are arranged on the upper transmission part and the lower transmission part; and the driving piece is installed on the outer side of the shell, and the driving end of the driving piece extends into the gearbox to be in transmission connection with the upper transmission piece and the lower transmission piece. An upper transmission part and a lower transmission part are installed in the shell, the driving part is installed on the outer side of the shell, the driving end of the driving part extends into the shell to be in transmission connection with the upper transmission part and the lower transmission part, and the driving part is independently arranged outside the shell. The problem that liquid leaks downwards to damage the driving part due to the fact that an existing motor is installed in the impeller pump and axially coincides with the impeller pump is solved, the driving part is in transmission connection with the upper transmission part and the lower transmission part, the rotating speed of the driving part can be effectively reduced, and the efficient performance of the impeller pump is kept.

Description

Technical Field

[0001] The utility model belongs to the technical field of impeller pumps, and in particular relates to an impeller pump. Background Art

[0002] A pump is a machine that conveys fluids or pressurizes fluids. It is mainly used to convey water, oil, ore pulp, acid and alkali liquids, emulsions, suspensions, gas mixtures and liquid metals. It is a common conveying equipment in industries such as mining, chemical and metallurgy. An impeller pump is a type of pump that transfers mechanical energy to the fluid through a rotating impeller, thereby generating a higher speed and pressure for the fluid. Impeller pumps have simple structures, low noise, easy operation and maintenance, can work continuously, and can convey cryogenic liquids. Impeller pumps have been widely used in various industries due to their various advantages.

[0003] However, the use of an impeller pump requires a prime mover (usually an electric motor) to continuously provide rotational power to drive the impeller to rotate. Due to the dynamic characteristics of the motor, its efficiency is relatively high at high speeds, and its efficiency is low at low speeds, and it generates a lot of heat. However, the best operating speed of the impeller is when the speed is low. When the speed is high, the fluid will produce a large amount of eddy currents, causing a large amount of energy loss. Therefore, under normal circumstances, the power output by the motor needs to be reduced by a reducer before being input into the impeller pump to match the optimal operating speed of the impeller pump, and the reduction ratio of the reducer needs to be large enough. General single-stage gears cannot meet this requirement.

[0004] In the prior art, a planetary gear reducer is generally used to reduce the speed of the motor. Its structural characteristics determine that the motor shaft must coincide with the shaft of the impeller pump, which causes the liquid to leak downward and damage the motor. In severe cases, the leaked liquid can cause the motor to short-circuit and burn, resulting in great property losses. Utility Model Content

[0005] The utility model provides an impeller pump for solving the problem in the prior art that when the impeller pump uses a planetary gear reducer to reduce the speed of the motor, the motor shaft and the impeller pump shaft overlap, causing liquid to leak downward and damage the motor.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] An impeller pump, comprising:

[0008] case;

[0009] A transmission assembly is installed in the housing, the transmission assembly includes a gearbox, an upper transmission member and a lower transmission member are arranged in the gearbox, and impellers are arranged on the upper transmission member and the lower transmission member;

[0010] The driving member is installed on the outer side of the shell, and the driving end of the driving member extends into the gearbox and is drivingly connected with the upper transmission member and the lower transmission member.

[0011] Furthermore, the gearbox includes a gearbox housing, the upper transmission member and the lower transmission member are installed at opposite ends of the gearbox housing, and there is a distance between the upper transmission member and the lower transmission member, and the driving end of the driving member is provided with a driving gear, and the driving gear is respectively meshed and connected with the upper transmission member and the lower transmission member.

[0012] Furthermore, the upper transmission member is an upper end face gear.

[0013] Furthermore, the lower transmission member is a lower end face gear.

[0014] Furthermore, the upper transmission member and the lower transmission member have the same structure.

[0015] Furthermore, the upper transmission member and the lower transmission member have equal diameters.

[0016] Furthermore, a plurality of connecting plates are arranged on the outer circumference of the gearbox, and ends of the connecting plates are fixedly connected to the inner wall of the shell.

[0017] Furthermore, the cross section of the gearbox is annular.

[0018] Furthermore, a support member is provided at the bottom of the shell, a bracket is provided on the support member, and the driving member is arranged on the bracket.

[0019] Furthermore, there are two driving members.

[0020] Compared with the prior art, the utility model has the following beneficial effects:

[0021] 1. An upper transmission member and a lower transmission member are installed in the shell, and a driving member is installed on the outside of the shell. The driving end of the driving member extends into the shell and is transmission-connected with the upper transmission member and the lower transmission member. The driving member is independently arranged outside the shell, which solves the problem that the existing motor is installed in the impeller pump and the axial overlap of the impeller pump causes liquid leakage downward to damage the driving member. The driving member is transmission-connected with the upper transmission member and the lower transmission member, which can effectively reduce the rotation speed of the driving member and maintain the efficient performance of the impeller pump.

[0022] 2. The upper transmission member and the lower transmission member are symmetrically installed at opposite ends of the gearbox and have a certain distance between them. The driving end of the driving member is located between the upper transmission member and the lower transmission member and is meshed with them. This can not only effectively reduce the rotation speed of the driving member and improve the operating efficiency of the impeller pump, but also avoid the problem of damage to the driving member. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 A three-dimensional schematic diagram of an impeller pump provided by the utility model;

[0025] Figure 2 A schematic cross-sectional view of an impeller pump provided by the utility model;

[0026] Figure 3 A first schematic diagram of the meshing connection between the transmission assembly and the driving member in the impeller pump provided by the utility model;

[0027] Figure 4 A second schematic diagram of the meshing connection between the transmission assembly and the driving member in the impeller pump provided by the utility model;

[0028] Figure 5 A schematic diagram of the connection between the gearbox housing and the interior of the housing in the impeller pump provided by the utility model;

[0029] Figure 6 A schematic diagram of a gearbox housing in an impeller pump provided by the utility model;

[0030] Among them: 1. housing; 2. first driving member; 3. first bracket; 4. first impeller; 5. gearbox; 501. gearbox housing; 502. driving gear; 503. upper transmission member; 504. lower transmission member; 505. pinion; 6. second impeller; 7. second driving member; 8. second bracket; 9. supporting member. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0032] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0034] In the description of the embodiments of the present utility model, it should be noted that if the terms "upper", "lower", "horizontal", "inner", etc. indicate an orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the invented product is usually placed when in use, it is only for the convenience of describing the present utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0035] In addition, if the term "horizontal" appears, it does not mean that the component must be absolutely horizontal, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", which does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0036] In the description of the embodiments of the present utility model, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0037] The present embodiment is described in detail below with reference to the accompanying drawings.

[0038] Embodiment 1:

[0039] like Figure 1As shown, this embodiment provides an impeller pump, including a housing 1, which is a cylindrical structure, and a fluid inlet and a fluid outlet are arranged on the outside and top of the housing 1. A transmission assembly is arranged inside the housing 1, and the transmission assembly includes a gearbox 5, and the gearbox 5 includes a gearbox housing 501. A plurality of connecting plates are arranged on the outer circumference of the gearbox housing 501, and the ends of the connecting plates are fixedly connected to the inside of the housing 1, so that the gearbox 5 is located in the middle of the inside of the housing 1, and an upper transmission member 503 and a lower transmission member 504 are arranged on the gearbox housing 501, and impellers are arranged on the upper transmission member 503 and the lower transmission member 504; a driving member is installed on the outside of the housing 1, and the driving end of the driving member extends into the gearbox housing 501 of the gearbox 5 and is connected to the upper transmission member 503 and the lower transmission member 504. The driving member is independently arranged outside the housing 1, which solves the problem that the existing motor is installed in the impeller pump and the impeller pump axial overlaps, causing liquid to leak downward and damage the driving member, and the driving member is connected to the upper transmission member and the lower transmission member, which can effectively reduce the speed of the driving member and maintain the high-efficiency performance of the impeller pump.

[0040] like Figure 2 and Figure 3 As shown, the upper transmission member 503 and the lower transmission member 504 are installed at opposite ends of the gearbox housing 501, and there is a certain distance between the upper transmission member 503 and the lower transmission member 504. The driving end of the driving member is provided with a driving gear 502, and the driving gear 502 is respectively meshed and connected with the upper transmission member 503 and the lower transmission member 504. Specifically, the upper transmission member 503 is an upper end face gear, and the lower transmission member 504 is a lower end face gear. The upper transmission member 503 and the lower transmission member 504 have the same structure, and the diameters of the upper transmission member 503 and the lower transmission member 504 are also equal; the driving member includes a first driving member 2, and the driving end of the first driving member 2 is provided with a driving gear 502, and the driving gear 502 is respectively meshed and connected with the upper transmission member 503 and the lower transmission member 504.

[0041] In this embodiment, Figure 5 and Figure 6 As shown, the cross-section of the gearbox 5 is annular, and mounting holes are provided at both ends of the gearbox 5; the impeller includes a first impeller 4 and a second impeller 6, and one end of the upper transmission member 503 away from the lower transmission member 504 is connected to the first impeller 4 through a first connecting shaft, and the other end of the lower transmission member 504 away from the upper transmission member 503 is connected to the second impeller 6 through a second connecting shaft.

[0042] In this embodiment, a support member 9 is provided at the bottom of the housing 1, a bracket is provided on the support member 9, and a driving member is provided on the bracket. Specifically, the support member 9 is a plate-shaped structure, and the bracket includes a first bracket 3, which is an L-shaped structure. The first bracket 3 is fixedly connected to the support member 9, and the first driving member 2 is provided on the top of the first bracket 3.

[0043] The first driving member 2 transmits power to the upper transmission member 503 and the lower transmission member 504 simultaneously through the driving gear 502. The rotation speeds of the upper transmission member 503 and the lower transmission member 504 are equal, but the rotation directions are opposite, so that the rotation directions of the blades of the first impeller 4 and the second impeller 6 are also opposite. When the first impeller 4 and the second impeller 6 rotate, a negative pressure area is generated in the shell 1, and the fluid is sucked in from the fluid inlet, and then the first impeller 4 and the second impeller 6 push the fluid to flow out from the fluid outlet. In this process, the fluid obtains the power of the first impeller 4 and the second impeller 6, and the flow velocity and pressure will increase, and finally it flows out at high speed and high pressure, thereby improving the kinetic energy conversion efficiency, reducing energy loss, and achieving high efficiency and energy saving.

[0044] Embodiment 2:

[0045] The difference from the first embodiment is that in this embodiment, Figure 4 As shown, the driving member includes a second driving member 7, the first driving member 2 and the second driving member 7 are both arranged on the supporting member 9, the driving end of the first driving member 2 is provided with a driving gear 502, and the driving end of the second driving member 7 is provided with a pinion 505, the driving gear 502 is meshed and connected with the upper transmission member 503 and the lower transmission member 504 on one side of the shell 1, and the pinion 505 is meshed and connected with the upper transmission member 503 and the lower transmission member 504 on the other side of the shell 1, the bracket includes a second bracket 8, and the second driving member 7 is installed on the second bracket 8, and the remaining structure is the same as that of the first embodiment; during operation, twice the power can be transmitted to the upper transmission member 503 and the lower transmission member 504 at the same time, and the first impeller 4 and the second impeller 6 are driven to rotate respectively, thereby making the output fluid flow larger, the speed higher, and the pressure higher.

[0046] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An impeller pump, characterized in that: include: Housing (1); A transmission assembly is installed in the housing (1), the transmission assembly comprising a gearbox (5), an upper transmission member (503) and a lower transmission member (504) are provided in the gearbox (5), and impellers are provided on both the upper transmission member (503) and the lower transmission member (504); A driving member is installed on the outside of the housing (1), and a driving end of the driving member extends into the gearbox (5) and is drivingly connected to an upper transmission member (503) and a lower transmission member (504).

2. The impeller pump according to claim 1, characterized in that: The gearbox (5) comprises a gearbox housing (501), the upper transmission member (503) and the lower transmission member (504) are mounted at opposite ends of the gearbox housing (501), and there is a distance between the upper transmission member (503) and the lower transmission member (504), and a driving gear (502) is provided at a driving end of the driving member, and the driving gear (502) is meshedly connected with the upper transmission member (503) and the lower transmission member (504) respectively.

3. The impeller pump according to claim 1 or 2, characterized in that: The upper transmission member (503) is an upper end face gear.

4. The impeller pump according to claim 1 or 2, characterized in that: The lower transmission member (504) is a lower end face gear.

5. The impeller pump according to claim 1 or 2, characterized in that: The upper transmission member (503) and the lower transmission member (504) have the same structure.

6. The impeller pump according to claim 1 or 2, characterized in that: The upper transmission member (503) and the lower transmission member (504) have the same diameter.

7. The impeller pump according to claim 2, characterized in that: A plurality of connecting plates are arranged on the outer circumference of the gearbox (5), and the ends of the connecting plates are fixedly connected to the inner wall of the housing (1).

8. The impeller pump according to claim 1 or 7, characterized in that: The cross section of the gearbox (5) is annular.

9. The impeller pump according to claim 1, characterized in that: A support member (9) is provided at the bottom of the shell (1), a bracket is provided on the support member (9), and the driving member is arranged on the bracket.

10. The impeller pump according to claim 1, characterized in that There are two driving members.

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