Feed pump shaft form and location tolerance detection device

Abstract

A feed pump shaft form and location tolerance detection device solves the problems that a traditional detection method cannot complete all the items in one-time detection, and in the process of detecting a feed pump shaft, clamping and rotating of the feed pump shaft are incorrect, the positioning precision is poor, and the detection result error is large, the product comprises a rack, a motor is arranged on the rear side of the rack, and the motor is arranged on the rear side of the rack. A motor output shaft is fixedly connected with a second gear, the second gear is meshed with a first gear, the first gear is rotationally connected with a rear conical head and a front conical head of a rack, center holes in the two sides of a water pump shaft are rotationally connected with the rear conical head and the front conical head of the rack, and the axis of the water pump shaft is fixed by the rear conical head and the front conical head; the fixing ring is fixed to the water pump shaft through the fastening bolt, the first gear is connected with the fastening bolt and drives the water pump shaft to rotate through the fastening bolt, the lead screw is in threaded connection with the rack and connected with the front conical head, the first sliding base is slidably connected with the rack, the second sliding base is slidably connected with the first sliding base, and the measuring head fixed to the second sliding base is connected with the surface of the water pump shaft. The device is used for detecting the form and location tolerance of the shaft of the water feeding pump, multiple items can be detected at the same time through one-time clamping, and the detection precision is high.

Description

Technical Field

[0001] The utility model relates to the field of power generation, in particular to a device for detecting the shape and position tolerance of a water supply pump shaft. Background Art

[0002] The feed pump is an important equipment of the generator set. After using it for a period of time, the feed pump needs to be maintained and serviced. The roundness, runout and coaxiality of the feed pump shaft directly reflect the accuracy of the feed pump shaft and determine whether the feed pump shaft needs to be repaired and replaced. The traditional detection method cannot complete all of the above items in one detection. In addition, during the detection process of the feed pump shaft, the clamping and rotation of the feed pump shaft are incorrect, the positioning accuracy is poor, and the detection results have large errors. Summary of the invention

[0003] In view of the above-mentioned deficiencies in the prior art, the utility model provides a water supply pump shaft form and position tolerance detection device with accurate positioning, reasonable rotation mode, one-time clamping and simultaneous detection of multiple items and high detection accuracy.

[0004] The purpose of this utility model is achieved through the following technical solutions:

[0005] A device for detecting the form and position tolerance of a water pump shaft comprises a frame, wherein a motor is provided at the rear side of the frame, the motor output shaft is fixedly connected to a No. 2 gear, the No. 2 gear and the No. 1 gear are meshed with each other, the No. 1 gear is rotatably connected to a rear cone head of the frame, the front cone head is slidably connected to the frame, the center holes on both sides of the water pump shaft are rotatably connected to the rear cone head and the front cone head of the frame, the axis of the water pump shaft is fixed by the rear cone head and the front cone head, the fixing ring is connected to the water pump shaft, the fastening bolt fixes the fixing ring to the water pump shaft, the No. 1 gear is connected to the fastening bolt, the No. 1 gear is connected to the fastening bolt, the No. 1 gear is connected to the water pump shaft via the fastening bolt, the lead screw is threadedly connected to the frame, the lead screw is connected to the front cone head, the No. 1 slide is slidably connected to the frame, the No. 2 slide is slidably connected to the No. 1 slide, and the measuring head fixed on the No. 2 slide is connected to the water pump shaft.

[0006] The rear cone head and the front cone head seat of the frame are coaxial, the front cone head is slidably connected to the front cone head seat, and the axis of the water pump shaft is fixed on the axes of the rear cone head and the front cone head.

[0007] The nut seat of the frame is threadedly connected to the lead screw, one side of the lead screw passes through the front cone head hole of the front cone head, and a nut is placed in the front cone head groove of the front cone head, and the nut fixes the lead screw and the front cone head together.

[0008] The lower part of the No. 1 slide seat and the No. 2 slide slot are made of magnetic materials, and the No. 1 slide seat is slidably connected to the No. 1 slide slot of the frame.

[0009] The No. 2 slide seat is slidably connected to the No. 2 slide groove and is clamped in the micrometer seat of the No. 2 slide seat.

[0010] The end face of the first gear is provided with a shifting rod, and the shifting rod and the fastening bolt are in contact with each other. Beneficial Effects

[0011] This device has accurate positioning, reasonable rotation mode, can detect multiple items at the same time in one clamping, and has high detection accuracy. The center holes on both sides of the water pump shaft are the processing datums of the water pump shaft. When this device is detecting, the rear cone head and the front cone head are against the center holes on both sides of the water pump shaft, so that the processing datum and the measurement datum coincide, ensuring the measurement accuracy. Gear No. 1 drives the water pump shaft to rotate through the fastening bolts and the fixing ring, and the lever can only drive the fixing ring to rotate, so that there will be no motion interference when the water pump shaft rotates, and no additional vibration will be caused by the rotation, thereby ensuring the measurement accuracy.

[0012] This device can measure roundness, circular runout, coaxiality and other items simultaneously during one measurement process, which not only ensures the measurement accuracy but also improves the detection efficiency. The lower part of the No. 1 slide and the No. 2 slide are made of magnetic materials. Under the action of magnetic force, the No. 1 slide and the frame, and the No. 2 slide maintain static relative stillness, while being easy to move, thereby improving the detection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 The utility model is a schematic diagram of the structure of the device for detecting the form and position tolerance of the shaft of a water pump.

[0014] Figure 2 This is a schematic diagram of the frame structure of the utility model.

[0015] Figure 3 This is a structural schematic diagram of the No. 1 slide seat described in the utility model.

[0016] Figure 4 This is a schematic diagram of the structure of the No. 2 slide seat described in the utility model.

[0017] Figure 5 It is a schematic diagram of the front cone head structure described in the utility model. Implementation

[0018] The utility model is further described in detail below according to the accompanying drawings and embodiments:

[0019] refer to Figure 1A water pump shaft form and position tolerance detection device includes a frame 110, a motor 190 is arranged at the rear side of the frame 110, the output shaft of the motor 190 is fixedly connected to the second gear 210, the second gear 210 and the first gear 160 are meshed with each other, the first gear 160 is rotatably connected to the rear cone head 111 of the frame 110, the front cone head 140 is slidably connected to the front cone head seat 112 of the frame 110, the center holes on both sides of the water pump shaft 220 are rotatably connected to the rear cone head 111 and the front cone head 140 of the frame 110, and the axis of the water pump shaft 220 is connected to the rear cone head 111 and the front cone head 140 of the frame 110. 0 is fixed, the fixing ring 170 is connected to the water pump shaft 220, the fastening bolt 180 fixes the fixing ring 170 on the water pump shaft 220, the No. 1 gear 160 is connected to the fastening bolt 180, the No. 1 gear 160 drives the water pump shaft 220 to rotate through the fastening bolt 180, the lead screw 150 is threadedly connected to the frame 110, the lead screw 150 is connected to the front cone head 140, the No. 1 slide 120 is slidably connected to the frame 110, the No. 2 slide 130 is slidably connected to the No. 1 slide 120, 230 is fixed on the No. 2 slide 130, and the measuring head of 230 is connected to the surface of the water pump shaft 220.

[0020] refer to Figure 2 The rear cone head 111 of the frame 110 and the front cone head seat 112 are coaxial, the front cone head 140 is slidably connected to the front cone head seat 112, and the axis of the water pump shaft 220 is fixed on the axes of the rear cone head 111 and the front cone head 140.

[0021] refer to Figure 5 The nut seat 113 of the frame 110 is threadedly connected to the lead screw 150, one side of the lead screw 150 passes through the front cone head hole 142 of the front cone head 140, and a nut is placed in the front cone head groove 141 of the front cone head 140, and the nut fixes the lead screw 150 and the front cone head 140 together.

[0022] refer to Figure 3 The lower part of the No. 1 slide 120 and the No. 2 slide groove 121 are made of magnetic materials, and the No. 1 slide 120 is slidably connected to the No. 1 slide groove 114 of the frame 110.

[0023] refer to Figure 4 The No. 2 slide 130 is slidably connected to the No. 2 slide groove 121 , and the 230 is stuck in the micrometer seat 131 of the No. 2 slide 130 .

[0024] refer to Figure 1 The end surface of the first gear 160 is provided with a lever 161, and the lever 161 and the fastening bolt 180 are in contact with each other.

[0025] When using the device, sleeve the fixing ring 170 on the shaft section on the rear side of the water pump shaft 220, fix the fixing ring 170 and the water pump shaft 220 together with the fastening bolts 180, insert the center hole on the rear side of the water pump shaft 220 into the rear cone head 111, rotate the lead screw 150, the rotation of the lead screw 150 drives the front cone head 140 to move forward, the front cone head 140 is inserted into the center hole on the rear side of the water pump shaft 220, and the water pump shaft 220 is positioned on the axis of the rear cone head 111 and the front cone head 140. The lower part of the No. 1 slide 120 and the No. 2 slide groove 121 are made of magnetic material. Under the action of magnetic force in static state, the positions of the No. 1 slide 120 and the frame 110 are relatively fixed, and the No. 1 slide 120 is pushed, and the No. 1 slide 120 and the frame 110 can move relatively, and the No. 1 slide 120 is pushed to the water pump to be tested. For the shaft segment corresponding to the shaft 220, under the action of magnetic force in static state, the positions of the No. 1 slide 120 and the No. 2 slide 130 are relatively fixed, and the No. 2 slide 130 is pushed so that the measuring head of 230 is pressed on the surface of the shaft segment to be measured and the appropriate pressure is maintained while making the reading of 230 zero, and the motor 190 is started, and the motor 190 drives the No. 1 gear 160 to rotate through the No. 2 gear 210, and the No. 1 gear 160 drives the water pump shaft 220 to rotate through the fastening bolt 180 and the fixing ring 170. When the water pump shaft 220 rotates, if there is a problem with the cylindricity of the shaft segment to be measured, it can be reflected by the reading of 230. During the rotation of the water pump shaft 220, the No. 1 slide 120 is pushed, and the circular runout of 230 can also be measured. By measuring the values ​​of different shaft segments, the coaxiality of each shaft segment can be measured.

[0026] The device has accurate positioning, reasonable rotation mode, can detect multiple items at the same time in one clamping, and has high detection accuracy. The center holes on both sides of the water pump shaft 220 are the processing datums of the water pump shaft 220. When the device is detecting, the rear cone head 111 and the front cone head 140 are against the center holes on both sides of the water pump shaft 220, so that the processing datum and the measurement datum coincide, ensuring the measurement accuracy. The No. 1 gear 160 drives the water pump shaft 220 to rotate through the fastening bolt 180 and the fixing ring 170, and the lever 161 can only drive the fixing ring 170 to rotate, so that the water pump shaft 22 0 There will be no motion interference when it rotates, and there will be no additional jump due to the rotation, which ensures the accuracy of measurement. The device can measure roundness, circular runout, coaxiality and other items at the same time during one measurement process, which not only ensures the accuracy of measurement but also improves the efficiency of detection. The lower part of the No. 1 slide 120 and the No. 2 slide 121 are made of magnetic materials. Under the action of magnetic force, the No. 1 slide 120 and the frame 110, No. 2 slide 130 maintain static relative stillness, while facilitating the movement of 230, thereby improving the detection efficiency.

Claims

1. A water pump shaft shape and position tolerance detection device, comprising a frame, characterized in that : A motor is provided at the rear side of the frame, and the motor output shaft is fixedly connected to the No. 2 gear, the No. 2 gear and the No. 1 gear are meshed with each other, the No. 1 gear is rotatably connected to the rear cone head of the frame, and the front cone head is slidably connected to the frame, the center holes on both sides of the water pump shaft are rotatably connected to the rear cone head and the front cone head of the frame, the axis of the water pump shaft is fixed by the rear cone head and the front cone head, the fixing ring is connected to the water pump shaft, and the fastening bolt fixes the fixing ring to the water pump shaft, the No. 1 gear is connected to the fastening bolt, and the No. 1 gear is connected to the water pump shaft via the fastening bolt, the lead screw is threadedly connected to the frame, the lead screw is connected to the front cone head, the No. 1 slide is slidably connected to the frame, the No. 2 slide is slidably connected to the No. 1 slide, and the measuring head fixed on the No. 2 slide is connected to the water pump shaft.

2. A water pump shaft shape and position tolerance detection device according to claim 1, characterized in that : The rear cone head and the front cone head seat of the frame are coaxial, the front cone head is slidably connected to the front cone head seat, and the axis of the water pump shaft is fixed on the axes of the rear cone head and the front cone head.

3. A water pump shaft shape and position tolerance detection device according to claim 1 or 2, characterized in that : The nut seat of the frame is threadedly connected to the lead screw, one side of the lead screw passes through the front cone head hole of the front cone head, and a nut is placed in the front cone head groove of the front cone head, and the nut fixes the lead screw and the front cone head together.

4. A water pump shaft shape and position tolerance detection device according to claim 1 or 2, characterized in that : The lower part of the No. 1 slide and the No. 2 slide are made of magnetic materials, and the No. 1 slide is slidably connected to the No. 1 slide of the frame.

5. A water pump shaft shape and position tolerance detection device according to claim 1 or 2, characterized in that : The No. 2 slide is slidably connected to the No. 2 slide slot and is stuck in the micrometer seat of the No. 2 slide.

6. A water pump shaft shape and position tolerance detection device according to claim 1 or 2, characterized in that : A shifting rod is provided on the end face of the No. 1 gear, and the shifting rod and the fastening bolt are in contact with each other.

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