A constant power variable pump motor pump unit

Abstract

The utility model discloses a constant power variable pump motor pump group, including a motor and a bell housing coupling arranged on the motor and detachably connected to the motor, and also includes a constant power variable pump detachably connected to the bell housing coupling and used for large flow at low pressure or small flow at high pressure. The beneficial effect of the utility model is that the constant power variable pump of the utility model can ensure that the motor will not be overpowered, large flow at low pressure, and small flow at high pressure. The constant power variable pump is used in the working condition where the required flow decreases as the load of the system increases, ensuring constant power output, so the utility model can make full use of the pump and the motor to better meet the working condition requirements, save costs, and save energy.

Description

Technical Field

[0001] The utility model relates to the technical field of motor pump sets, in particular to a constant power variable pump motor pump set. Background Art

[0002] The traditional metering pump motor pump unit includes a metering pump and a motor. When the metering pump motor pump unit is used for medium-density fiberboard, the metering pump motor pump unit needs to add a low-pressure high-flow pump unit and a high-pressure low-flow pump unit to meet the working conditions, which leads to increased costs and waste of energy.

[0003] Therefore, the applicant has found a solution to the above-mentioned problem through beneficial exploration and research, and the technical solution to be introduced below is produced in this context. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a constant power variable pump motor pump group to solve the above problems in view of the above shortcomings and defects of the prior art.

[0005] The technical problem to be solved by the present invention can be achieved by adopting the following technical solutions:

[0006] A constant power variable pump motor pump group includes an electric motor and a bell housing coupling arranged on the electric motor and detachably connected to the electric motor. The invention is characterized in that it also includes a constant power variable pump detachably connected to the bell housing coupling and used for large flow at low pressure or small flow at high pressure.

[0007] In a preferred embodiment of the utility model, a mounting flange is provided on one side of the motor, and the mounting flange is detachably connected to the bell housing coupling via a bolt assembly.

[0008] In a preferred embodiment of the present invention, the bolt assembly includes a bolt passing through the mounting flange and the bell housing coupling and a nut fixed on the bolt.

[0009] In a preferred embodiment of the present invention, a hanging ring is provided on the top of the motor.

[0010] Due to the adoption of the above technical scheme, the beneficial effect of the utility model is that the constant power variable pump of the utility model can ensure that the motor will not be overpowered, with a large flow rate at low pressure and a small flow rate at high pressure. The constant power variable pump is used in the working condition where the required flow rate decreases as the load of the system increases, ensuring constant power output. Therefore, the utility model can make full use of the pump and the motor to better meet the working conditions, save costs, and save energy. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be 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 paying creative work.

[0012] Figure 1 It is a structural schematic diagram of the utility model. DETAILED DESCRIPTION

[0013] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below with reference to specific illustrations.

[0014] See also Figure 1 A constant power variable pump motor pump unit shown includes a motor 10 and a bell housing coupling 20 disposed on the motor 10 and detachably connected to the motor 10. In this embodiment, a mounting flange 11 is disposed on one side of the motor 10, and the mounting flange 11 is detachably connected to the bell housing coupling 20 via a bolt assembly 1. The bolt assembly 1 includes a bolt 1a passing through the mounting flange 11 and the bell housing coupling 20 and a nut 1b fixed on the bolt 1a.

[0015] It also includes a constant power variable pump 30 which is detachably connected to the bell housing coupling 20 and is used for high flow at low pressure or low flow at high pressure. The constant power variable pump 30 in this embodiment is detachably connected to the bell housing coupling 20 through a bolt assembly.

[0016] In order to facilitate lifting the motor, a lifting ring 12 is provided on the top of the motor 10 .

[0017] The utility model is mainly used for a medium density fiberboard press. When the medium density fiberboard is pressurized, the compression amount is large at the beginning, and the required pressure is small, so the flow rate is large. As the compressible amount of the fiberboard becomes smaller, the pressure of the constant power variable pump 30 element couple increases, and the flow rate is small, so the output power is kept unchanged, thereby meeting the process requirements for pressing the medium density fiberboard.

[0018] In addition, the constant power variable pump 30 is used in the working condition where the required flow rate decreases as the load increases, ensuring constant power output. Therefore, the utility model can make full use of the constant power variable pump 30 and the motor 10 to better meet the working condition requirements, save costs, and save energy.

[0019] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A constant power variable pump motor pump unit, comprising a motor and a bell housing coupling disposed on the motor and detachably connected to the motor, characterized in that: It also includes a constant power variable displacement pump which is detachably connected to the bell housing coupling and is used for high flow at low pressure or low flow at high pressure.

2. A constant power variable pump motor pump set according to claim 1, characterized in that: A mounting flange is provided on one side of the motor, and the mounting flange is detachably connected to the bell housing coupling via a bolt assembly.

3. A constant power variable pump motor pump set according to claim 2, characterized in that: The bolt assembly includes a bolt passing through the mounting flange and the bell housing coupling and a nut fixed on the bolt.

4. A constant power variable pump motor pump set according to claim 1, characterized in that: A hanging ring is arranged on the top of the motor.

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