Fan impeller press-fitting device for pressure monitoring

Abstract

The utility model relates to the technical field of fan assembly, and discloses a fan impeller press-fitting device for pressure monitoring, which comprises a rack, and a hydraulic pump, a hydraulic valve block, a hollow jack and a press-fitting tool which are sequentially arranged on the rack in series, the press-fitting tool is connected with an impeller to be press-fitted and used for press-fitting the impeller to a motor shaft of a motor. And a pressure sensor is arranged on the hydraulic valve block. According to the hollow jack and the press fitting tool, the impeller is pressed on a motor shaft, the force for pressing the impeller is detected in real time, and when the force reaches a set value, the digital display pressure switch controls the buzzer to give an alarm to remind an operator to stop pressurizing and controls the pressure relief electromagnetic valve to operate the pressure relief valve block to relieve pressure, so that the impeller is pressed on the motor shaft. The impeller is prevented from being stuck on the motor shaft due to improper assembly or overlarge pressure, the paperless recorder can store pressure data, convenience is brought to checking after the event, pressure monitoring during assembly is realized, the assembly quality is ensured, and the cost of manpower and material resources is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of fan assembly, and in particular relates to a fan impeller press-assembly device for pressure monitoring. Background Art

[0002] During the press-fitting process of the fan impeller, the impeller and the motor shaft need to be pressed into the appropriate position of the motor shaft for various reasons. This requires controlling the press-fitting pressure during the assembly process. Moreover, in the face of increasingly high requirements for processing and assembly accuracy, the existing press-fitting methods and press-fitting equipment use a simple manually operated hydraulic pump to assemble the two together, which is difficult to achieve the set assembly accuracy and requirements. In particular, due to improper operation by workers, it is easy to cause excessive or insufficient pressure during assembly, resulting in unqualified assembly, and a waste of time and labor costs.

[0003] Therefore, there is an urgent need for a fan impeller press-fitting device capable of performing pressure monitoring to solve the problem that the assembly pressure is difficult to control in the prior art. Utility Model Content

[0004] The purpose of the utility model is to provide a fan impeller press-fitting device for pressure monitoring, and its specific technical scheme is as follows:

[0005] A fan impeller press-fitting device for pressure monitoring comprises a frame, and a hydraulic pump, a hydraulic valve block, a hollow jack and a press-fitting tool which are sequentially arranged in series on the frame;

[0006] The press-fitting tool is connected to the impeller to be press-fitted, and is used to press-fit the impeller onto the motor shaft of the motor;

[0007] The hydraulic valve block is provided with a pressure sensor for detecting the pressure of the hydraulic oil therein.

[0008] Preferably, it also includes a pressure relief solenoid valve, which is connected to the hydraulic valve block and is used to control the pressure relief of the hydraulic valve block.

[0009] Preferably, it also includes a digital pressure switch, which is connected to the pressure sensor and the pressure relief solenoid valve at the same time, for receiving signals from the pressure sensor and displaying the pressure value in real time, and for controlling the pressure relief of the pressure relief solenoid valve according to the pressure size.

[0010] Preferably, the hydraulic pump is a manual hydraulic pump, and the digital pressure switch is also connected to a buzzer to control the pressure relief solenoid valve to release pressure and trigger a buzzer alarm at the same time.

[0011] Preferably, the hollow jack comprises a hollow rod and a screw rod, one end of the hollow rod is connected to the hydraulic valve block, and the other end is connected to the press fitting;

[0012] The hollow jack and the motor shaft are fixedly connected via a screw rod.

[0013] Preferably, it also includes a paperless recorder, which is used to store and record the pressure data of the pressure sensor.

[0014] Preferably, the frame is also provided with rollers for driving the frame to move.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] The utility model is a fan impeller press-fitting device for pressure monitoring, comprising a frame and a hydraulic pump, a hydraulic valve block, a hollow jack and a press-fitting tooling arranged in series on the frame; the press-fitting tooling is connected to the impeller to be press-fitted, and is used to press-fit the impeller onto the motor shaft of the motor; the hydraulic valve block is provided with a pressure sensor, which is used to detect the pressure of the hydraulic oil therein. Through the utility model, the press-fitting pressure can be monitored in real time when the impeller is press-fitted, so that the operator can control the pressure size conveniently, and avoid the impeller being damaged and unable to be disassembled due to inadequate press-fitting or excessive pressure.

[0017] Other features and advantages of the present invention will become apparent from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the fan impeller press-fitting device of the utility model when in use;

[0019] Figure 2 It is a partial cross-sectional view of the press-fitting device when the impeller is press-fitted.

[0020] In the figure: 1. Frame; 2. Hydraulic pump; 3. Hydraulic valve block; 3.1. Pressure sensor; 4. Pressure relief solenoid valve; 5. Hollow jack; 5.1. Hollow rod; 5.2. Screw rod; 5.3. Hydraulic oil inlet; 6. Press-fitting tool; 7. Digital pressure switch; 8. Impeller; 9. Motor; 9.1. Motor shaft; 10. Buzzer; 11. Paperless recorder. DETAILED DESCRIPTION

[0021] The embodiments of the present invention are described in detail below with reference to the accompanying drawings. However, the present invention can be implemented in many different ways as defined and covered by the claims.

[0022] Example:

[0023] like Figure 1The present embodiment provides a fan impeller press-fitting device for pressure monitoring, comprising a frame 1 and a hydraulic pump 2, a hydraulic valve block 3, a hollow jack 5 and a press-fitting tool 6 which are sequentially arranged in series on the frame 1; the press-fitting tool 6 is connected to an impeller 8 to be press-fitted, and is used to press-fit the impeller 8 onto a motor shaft 9.1 of an electric motor 9; a pressure sensor 3.1 is provided on the hydraulic valve block 3 for detecting the pressure of the hydraulic oil therein.

[0024] See also Figure 2 In this embodiment, a pressure relief solenoid valve 4 is further included, which is connected to the hydraulic valve block 3 and is used to control the pressure relief of the hydraulic valve block 3. Through the pressure relief solenoid valve, there is no need to manually operate and control the hydraulic valve block, and it is convenient to realize the automatic control of the pressure relief action later.

[0025] The device of this embodiment also includes a digital pressure switch 7, which is connected to the pressure sensor 3.1 and the pressure relief solenoid valve 4 at the same time, and is used to receive the signal from the pressure sensor 3.1 and display the pressure value in real time, and is also used to control the pressure relief solenoid valve 4 to release pressure according to the pressure. Through the digital pressure switch, the required pressure value can be set in advance, and when the set pressure is reached, the pressure relief solenoid valve is controlled to operate, so that the pressure relief solenoid valve controls the hydraulic valve block to release pressure, further saving manpower, and at the same time, through the above-mentioned automated operation, the assembly accuracy is further improved.

[0026] The hydraulic pump 2 is a manual hydraulic pump, and the digital pressure switch 7 is also connected to the buzzer 10, which is used to control the pressure relief solenoid valve 4 to release pressure and trigger the buzzer 10 to alarm. The hollow jack 5 includes a hollow rod 5.1 and a screw 5.2. One end of the hollow rod 5.1 is connected to the hydraulic valve block 3, and the other end is connected to the pressing tool 6; the hollow jack 5 and the motor shaft 9.1 are fixedly connected by the screw 5.2. Through the above arrangement, when the hydraulic pump is pressurized, the hydraulic oil enters the hollow jack through the hydraulic valve block. Due to the action of the hydraulic oil, the hollow rod in the middle of the hollow jack extends out, and the screw of the hollow jack is pulled and screwed into the threaded hole of the motor shaft. The hollow rod pushes the tooling for pressing the impeller to move toward the motor shaft, so that the impeller can be quickly pressed onto the motor shaft.

[0027] In this embodiment, a paperless recorder 11 is also included, and the paperless recorder 11 is used to store and record the pressure data of the pressure sensor 3.1. When the pressure detected by the pressure sensor reaches the set value, the digital pressure switch controls the pressure relief solenoid valve to operate the pressure relief valve block to relieve pressure, and also controls the buzzer to sound an alarm to remind the operator to stop pressurizing to prevent the impeller from getting stuck on the motor shaft due to excessive pressure. The paperless recorder can save the pressure data for easy viewing afterwards, realizes pressure monitoring during assembly, ensures assembly quality, and reduces manpower and material resources.

[0028] The frame 1 is also provided with rollers for driving the frame 1 to move.

[0029] See also Figure 2 The operation method and principle of the device of this embodiment are as follows: when the worker operates the manual hydraulic pump, the hydraulic oil enters the hollow jack through the hydraulic valve block. Due to the action of the hydraulic oil, the hollow rod in the middle of the hollow jack extends out, and the screw of the hollow jack is pulled and screwed into the threaded hole of the motor shaft. The hollow rod pushes the tooling of the impeller to move toward the motor shaft, so that the impeller is pressed into the motor shaft. In order to avoid the impeller being stuck on the motor shaft due to insufficient pressure and excessive pressure, and the impeller cannot be pulled out when the impeller needs to be repaired later, the force pressing the impeller is monitored and limited in real time, and the pressure sensor is fed back to the digital pressure switch. While displaying the pressure, when the pressure reaches the set value, the buzzer sounds an alarm to remind the operator to stop pressurizing. At the same time, the digital pressure switch also controls the pressure relief solenoid valve to relieve pressure, thereby operating the pressure relief valve block to relieve pressure, and the paperless recorder can save the pressure data for easy viewing afterwards. Through this embodiment, pressure monitoring during assembly is realized, assembly quality is guaranteed, and the cost of manpower and material resources is reduced.

[0030] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A fan impeller press-fitting device for pressure monitoring, characterized in that: It comprises a frame (1), and a hydraulic pump (2), a hydraulic valve block (3), a hollow jack (5) and a press-fitting tool (6) which are sequentially arranged in series on the frame (1); The press-fitting tool (6) is connected to the impeller (8) to be press-fitted, and is used to press-fit the impeller (8) onto the motor shaft (9.1) of the motor (9); The hydraulic valve block (3) is provided with a pressure sensor (3.1) for detecting the pressure of the hydraulic oil therein.

2. A fan impeller press-fitting device for pressure monitoring according to claim 1, characterized in that: It also comprises a pressure relief solenoid valve (4), which is connected to the hydraulic valve block (3) and is used to control the pressure relief of the hydraulic valve block (3).

3. A fan impeller press-fitting device for pressure monitoring according to claim 2, characterized in that: The device also comprises a digital pressure switch (7), which is connected to the pressure sensor (3.1) and the pressure relief solenoid valve (4) at the same time, and is used to receive a signal from the pressure sensor (3.1) and display the pressure in real time, and is also used to control the pressure relief solenoid valve (4) to release pressure when a set pressure is reached.

4. A fan impeller press-fitting device for pressure monitoring according to claim 3, characterized in that: The digital pressure switch (7) is also connected to a buzzer (10) and is used to control the pressure relief solenoid valve (4) to release pressure and trigger the buzzer (10) to sound an alarm.

5. A fan impeller press-fitting device for pressure monitoring according to claim 1, characterized in that: The hydraulic pump (2) is a manual hydraulic pump.

6. A fan impeller press-fitting device for pressure monitoring according to claim 1, characterized in that: The hollow jack (5) comprises a hollow rod (5.1) and a screw rod (5.2); One end of the hollow rod (5.1) is connected to the hydraulic valve block (3) via a hydraulic oil inlet (5.3), and the other end is connected to a press fitting (6); The hollow jack (5) and the motor shaft (9.1) are fixedly connected via a screw rod (5.2).

7. A fan impeller press-fitting device for pressure monitoring according to claim 1, characterized in that: It also includes a paperless recorder (11), which is used to store and record the pressure data of the pressure sensor (3.1).

8. A fan impeller press-fitting device for pressure monitoring according to claim 1, characterized in that: The frame (1) is also provided with rollers for driving the frame (1) to move.

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