Automatic assembly device for cooling water pump shaft connecting bearing

Abstract

The utility model relates to the technical field of bearing assembly, in particular to an automatic assembly device for a cooling water pump shaft connecting bearing, which reduces the resistance when the bearing is pressed on a shaft, reduces the abrasion when the bearing is pressed, and is convenient to use and high in practicability. Comprising a baseplate; the device further comprises a press-fitting mechanism, a heating mechanism, a shaft clamping and moving mechanism and a bearing clamping and moving mechanism, the press-fitting mechanism is installed on the bottom plate and has a pressing function, the heating mechanism is installed on the bottom plate and has a heating function, the shaft clamping and moving mechanism is used for clamping and fixing a shaft, and the bearing clamping and moving mechanism is used for clamping and fixing the bearing. And the bearing clamping and moving mechanism is used for clamping and moving the bearing.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of bearing assembly, in particular to a kind of cooling water pump shaft connecting bearing automatic assembly device. BACKGROUND

[0002] The shaft on the water pump is the driving component of the impeller on the water pump, the impeller is installed on the shaft, and the impeller is rotated by the rotation of the shaft, thereby realizing the delivery of liquid. Before the shaft is installed on the water pump, it needs to be assembled with the bearing first. The shaft on the water pump is generally connected with interference between the bearing, and the bearing needs to be pressed onto the shaft during assembly. In the prior art, the utility model patent with patent application number 201520941977.3 discloses a water pump shaft connecting bearing assembly device, which is mainly composed of a clamp, a guide sleeve and a pressing mechanism. When assembling the bearing and the shaft, the shaft is clamped and fixed by the clamp, and then the bearing is pressed onto the shaft by the pressing mechanism. The inventor believes that the following problems exist in the use process: when the interference between the shaft and the bearing is large, the resistance received by the bearing is large when it is directly pressed onto the shaft by the pressing mechanism, and the wear between the bearing and the shaft is more during the pressing process, which is not convenient to use. SUMMARY

[0003] To solve the above technical problems, the utility model provides a kind of cooling water pump shaft connecting bearing automatic assembly device, which reduces the resistance of bearing when being pressed on the shaft, reduces the wear during pressing, is convenient to use and has high practicability.

[0004] The cooling water pump shaft connecting bearing automatic assembly device of the utility model, comprising a bottom plate, further comprising a pressing mechanism, a heating mechanism, a shaft clamping and moving mechanism and a bearing clamping and moving mechanism, the pressing mechanism is installed on the bottom plate, the pressing mechanism has the function of pressing, the heating mechanism is installed on the bottom plate, the heating mechanism has the function of heating, the shaft clamping and moving mechanism is used for clamping and fixing the shaft, and the bearing clamping and moving mechanism is used for clamping and moving the bearing. When assembling the shaft and the bearing, the shaft is first clamped and fixed by the shaft clamping and moving mechanism, then the bearing is clamped by the bearing clamping and moving mechanism, then the bearing is heated and warmed up in the heating mechanism, the volume of the bearing increases after being heated, then the bearing is moved onto the shaft, and then the bearing is pressed onto the shaft by the pressing mechanism. When the bearing is pressed onto the shaft, the bearing is heated in advance, the volume of the bearing is increased, the resistance of the bearing when being pressed on the shaft is reduced, the wear during pressing is reduced, it is convenient to use and has high practicability.

[0005] Preferably, the heating mechanism comprises a box body and a heater, the box body is provided with a cavity, the heater is installed on the box body, and an output end of the heater is located in the cavity of the box body; the cavity of the box body is provided with heat conducting oil; when the bearing is heated, the bearing clamping and moving mechanism drives the bearing to move into the cavity of the box body, then the heater is turned on, the heat conducting oil in the cavity of the box body is heated, and then the heat conducting oil heats the bearing, so that the volume of the bearing increases after being heated, thereby facilitating the heating of the bearing.

[0006] Preferably, the bearing clamping and moving mechanism comprises a lifting frame, an electric sliding rail A, a sliding plate, a hydraulic cylinder A, a push rod and a three-jaw chuck A, the electric sliding rail A is fixedly installed at the lower end of the lifting frame, the sliding plate is installed on the electric sliding rail A, the electric sliding rail A is used for moving the sliding plate left and right, the hydraulic cylinder A is fixedly installed at the lower end of the sliding plate, the push rod is installed at the output end of the lower part of the hydraulic cylinder A, and the three-jaw chuck A is fixedly installed at the lower end of the push rod; the lifting frame is fixedly hoisted on the support in the workshop; when the bearing is assembled, the bearing is first clamped and fixed by the three-jaw chuck A, then the push rod drives the three-jaw chuck A to descend by the hydraulic cylinder A, the three-jaw chuck A drives the bearing to descend, so that the bearing is immersed in the heat conducting oil in the cavity of the box body for heating, after the bearing is heated to a suitable temperature, the bearing is moved out of the box body, then the electric sliding rail A is turned on, the hydraulic cylinder A drives the push rod and the three-jaw chuck A to move right through the sliding plate, the three-jaw chuck A drives the bearing to move right, so that the bearing moves to the upper end of the shaft, then the bearing is lowered, so that the bearing falls to the upper part of the shaft, and then the three-jaw chuck A is released; the movement of the bearing is facilitated.

[0007] Preferably, the shaft clamping and moving mechanism comprises an electric sliding rail B, a sliding block, a support box and a three-jaw chuck B, the electric sliding rail B is fixedly installed at the upper end of the bottom plate, the sliding block is installed on the electric sliding rail B, the electric sliding rail B is used for moving the sliding block left and right, the support box is fixedly installed at the upper end of the sliding block, and the three-jaw chuck B is fixedly installed in the support box; when the shaft is clamped and fixed, the shaft is placed on the three-jaw chuck B, then the lower part of the shaft is clamped and fixed by the three-jaw chuck B, after the heated bearing is placed on the upper part of the shaft, the electric sliding rail B is turned on, the support box drives the three-jaw chuck B to move through the sliding block of the electric sliding rail B, the three-jaw chuck B drives the bearing and the shaft to move, so that the shaft and the bearing move to the pressing mechanism below for pressing; the convenience is improved.

[0008] Preferably, the pressing mechanism comprises a support frame, a hydraulic cylinder B, a sliding rod, a disc and a plurality of pressing rods, the support frame is fixedly installed on the bottom plate, the hydraulic cylinder B is fixedly installed at the upper end of the support frame, the sliding rod is slidably installed at the upper portion of the support frame, the upper end of the sliding rod is connected with the output end of the hydraulic cylinder B, the disc is fixedly installed at the lower end of the sliding rod, the plurality of pressing rods are all fixedly installed at the lower end of the disc, and the plurality of pressing rods are evenly distributed at the lower end of the disc; when the bearing and the shaft are moved below the plurality of pressing rods, the hydraulic cylinder B is opened, the hydraulic cylinder B drives the disc and the plurality of pressing rods to descend through the sliding rod, the plurality of pressing rods are in contact with the inner ring of the bearing, a downward pressure is applied to the bearing, and the bearing is pressed on the shaft to be in place, thereby facilitating the pressing of the bearing.

[0009] Preferably, the support box is provided with an oil discharge pipe, and the oil discharge pipe is provided with a valve; the heat conducting oil attached to the bearing will drop into the support box, when it is needed to discharge the heat conducting oil in the support box, the valve on the oil discharge pipe is opened, and the heat conducting oil in the support box is discharged through the oil discharge pipe, thereby improving the convenience.

[0010] Preferably, the upper end of the sliding block is provided with a high-temperature-resistant coating; through the above arrangement, the high-temperature-resistant effect of the sliding block is improved, and the service life of the sliding block is improved.

[0011] Compared with the prior art, the bearing has the advantages that: the resistance of the bearing during pressing on the shaft is reduced, the wear during pressing is reduced, the use is convenient, and the practicality is high. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 is the first axial structure schematic view of the utility model;

[0013] Figure 2 is the second axial structure schematic view of the utility model;

[0014] Figure 3 is the structure schematic view of the sliding plate, the hydraulic cylinder A and the push rod etc.;

[0015] Figure 4 is the structure schematic view of the electric sliding rail B, the sliding block and the support box etc.;

[0016] Figure 5 is the structure schematic view of the pressing mechanism;

[0017] Figure 6 is the structure schematic view of the assembled shaft and bearing.

[0018] Marked in the drawing: 1, bottom plate; 2, box; 3, heater; 4, lifting frame; 5, electric sliding rail A; 6, sliding plate; 7, hydraulic cylinder A; 8, push rod; 9, three-jaw chuck A; 10, electric sliding rail B; 11, sliding block; 12, support box; 13, three-jaw chuck B; 14, support frame; 15, hydraulic cylinder B; 16, sliding rod; 17, disc; 18, pressing rod; 19, oil discharge pipe; 20, shaft; 21, bearing. DETAILED DESCRIPTION

[0019] In order to facilitate the understanding of the present application, the present application will be described more fully below with reference to the accompanying drawings. The present application can be realized in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.

[0020] Example 1

[0021] As Figures 1 to 6 , the automatic sliding assembly device for cooling water pump shaft connecting bearing of the present application comprises a bottom plate 1, a pressing mechanism, a heating mechanism, a shaft clamping and moving mechanism and a bearing clamping and moving mechanism. The pressing mechanism is installed on the bottom plate 1 and has the function of pressing. The heating mechanism is installed on the bottom plate 1 and has the function of heating. The shaft clamping and moving mechanism is used for clamping and fixing the shaft. The bearing clamping and moving mechanism is used for clamping and moving the bearing. When assembling the shaft and the bearing, first, the shaft is clamped and fixed by the shaft clamping and moving mechanism. Then the bearing is clamped by the bearing clamping and moving mechanism. After that, the bearing is heated in the heating mechanism to increase its volume after being heated. Then the bearing is moved onto the shaft. Finally, the bearing is pressed onto the shaft by the pressing mechanism. When pressing the bearing onto the shaft, the bearing is heated in advance, the increased volume of the bearing reduces the resistance when the bearing is pressed onto the shaft, and the wear during pressing is reduced. The device is convenient to use and has high practicability.

[0022] As Figure 1 , the heating mechanism comprises a box 2 and a heater 3. The box 2 is provided with a chamber. The heater 3 is installed on the box 2, and the output end of the heater 3 is located in the chamber of the box 2. The chamber of the box 2 is filled with heat conducting oil. When heating the bearing, the bearing clamping and moving mechanism moves the bearing into the chamber of the box 2. Then the heater 3 is turned on to heat the heat conducting oil in the chamber of the box 2, which in turn heats the bearing. The volume of the bearing increases after being heated, which facilitates the heating of the bearing.

[0023] As Figure 1 and Figure 3, the bearing clamping and moving mechanism comprises a lifting frame 4, an electric slide rail A 5, a sliding plate 6, a hydraulic cylinder A 7, a push rod 8 and a three-jaw chuck A 9, the electric slide rail A 5 is fixedly installed at the lower end of the lifting frame 4, the sliding plate 6 is installed on the electric slide rail A 5, the electric slide rail A 5 is used for moving the sliding plate 6 left and right, the hydraulic cylinder A 7 is fixedly installed at the lower end of the sliding plate 6, the push rod 8 is installed at the output end of the lower part of the hydraulic cylinder A 7, and the three-jaw chuck A 9 is fixedly installed at the lower end of the push rod 8; the lifting frame 4 is fixedly hoisted on the support in the workshop; when assembling the bearing, the bearing is first clamped and fixed by the three-jaw chuck A 9, then the push rod 8 drives the three-jaw chuck A 9 to descend through the hydraulic cylinder A 7, the three-jaw chuck A 9 drives the bearing to descend, the bearing is heated by being immersed in the heat-conducting oil in the cavity of the box body 2, after the bearing is heated to a suitable temperature, the bearing is moved out of the box body 2, then the electric slide rail A 5 is opened, the hydraulic cylinder A 7 drives the push rod 8 and the three-jaw chuck A 9 to move right through the sliding plate 6, the three-jaw chuck A 9 drives the bearing to move right, the bearing is moved to the upper end of the shaft, then the bearing is lowered, the bearing falls to the upper part of the shaft 20, and then the three-jaw chuck A 9 is loosened; the bearing is conveniently moved.

[0024] As Figure 1 and Figure 4 , the shaft clamping and moving mechanism comprises an electric slide rail B 10, a sliding block 11, a support box 12 and a three-jaw chuck B 13, the electric slide rail B 10 is fixedly installed at the upper end of the bottom plate 1, the sliding block 11 is installed on the electric slide rail B 10, the electric slide rail B 10 is used for moving the sliding block 11 left and right, the support box 12 is fixedly installed at the upper end of the sliding block 11, and the three-jaw chuck B 13 is fixedly installed in the support box 12; when clamping and fixing the shaft, the shaft is placed on the three-jaw chuck B 13, then the lower part of the shaft is clamped and fixed by the three-jaw chuck B 13, after the heated bearing is placed on the upper part of the shaft, the electric slide rail B 10 is opened, the support box 12 drives the three-jaw chuck B 13 to move through the sliding block 11 of the electric slide rail B 10, the three-jaw chuck B 13 drives the bearing and the shaft to move, and the shaft and the bearing are moved to the pressing mechanism below to be pressed; the convenience is improved.

[0025] As Figure 1 and Figure 5The pressing mechanism comprises a support frame 14, a hydraulic cylinder B 15, a sliding rod 16, a disc 17 and a plurality of pressing rods 18, the support frame 14 is fixedly installed on the bottom plate 1, the hydraulic cylinder B 15 is fixedly installed at the upper end of the support frame 14, the sliding rod 16 is slidably installed at the upper portion of the support frame 14, the upper end of the sliding rod 16 is connected with the output end of the hydraulic cylinder B 15, the disc 17 is fixedly installed at the lower end of the sliding rod 16, the plurality of pressing rods 18 are all fixedly installed at the lower end of the disc 17, and the plurality of pressing rods 18 are evenly distributed at the lower end of the disc 17; when the bearing and the shaft are moved below the plurality of pressing rods 18, the hydraulic cylinder B 15 is opened, the hydraulic cylinder B 15 drives the disc 17 and the plurality of pressing rods 18 to descend through the sliding rod 16, the plurality of pressing rods 18 are in contact with the inner ring of the bearing, and downward pressure is applied to the bearing, so that the bearing is pressed and installed in place on the shaft, and the pressing of the bearing is facilitated.

[0026] The support box 12 is provided with an oil discharge pipe 19, and the oil discharge pipe 19 is provided with a valve; the heat conducting oil attached to the bearing will drop into the support box 12, and when it is necessary to discharge the heat conducting oil in the support box 12, the valve of the oil discharge pipe 19 is opened, so that the heat conducting oil in the support box 12 is discharged through the oil discharge pipe 19, and the convenience is improved.

[0027] The upper end of the sliding block 11 is provided with a high-temperature-resistant coating.

[0028] Embodiment 2

[0029] On the basis of embodiment 1, the heater 3 can also be replaced by a plurality of heating lamps, and the plurality of heating lamps are installed in the box body 2, and when the bearing is heated, the bearing enters the box body 2 and is heated by the plurality of heating lamps.

[0030] The heater 3, the electric sliding rail A 5, the three-jaw chuck A 9, the electric sliding rail B 10 and the oil discharge pipe 19 of the cooling water pump shaft bearing automatic assembly device are all purchased on the market, and the technical personnel in the industry only needs to install and operate according to the attached instruction manual, without the creative labor of the technical personnel in the field.

[0031] The above is only the preferred embodiment of the utility model, and it should be pointed out that, for ordinary technical personnel in the technical field, without departing from the technical principle of the utility model, a plurality of improvements and modifications can be made, and these improvements and modifications should be regarded as the protection range of the utility model.

Claims

1. An automatic assembly device for cooling water pump shaft coupling bearing, comprising a base plate (1); characterized in that, It also includes a pressing mechanism, a heating mechanism, a shaft clamping and moving mechanism, and a bearing clamping and moving mechanism. The heating mechanism includes a box body (2) and a heater (3), the box body (2) is provided with a chamber, the heater (3) is installed on the box body (2), the output end of the heater (3) is located in the chamber of the box body (2), and the chamber of the box body (2) is filled with heat-conducting oil. The pressing mechanism includes a support frame (14), a hydraulic cylinder B (15), a sliding rod (16), a disc (17), and a plurality of pressing rods (18), the support frame (14) is fixedly installed on the bottom plate (1), the hydraulic cylinder B (15) is fixedly installed at the upper end of the support frame (14), the sliding rod (16) is slidably installed at the upper portion of the support frame (14), the upper end of the sliding rod (16) is connected with the output end of the hydraulic cylinder B (15), the disc (17) is fixedly installed at the lower end of the sliding rod (16), and the plurality of pressing rods (18) are fixedly installed at the lower end of the disc (17) and are evenly distributed at the lower end of the disc (17).

2. An apparatus for the automated assembly of a water pump shaft bearing assembly as defined in claim 1 wherein, The bearing clamping and moving mechanism includes a lifting frame (4), an electric sliding rail A (5), a sliding plate (6), a hydraulic cylinder A (7), a push rod (8), and a three-jaw chuck A (9), the electric sliding rail A (5) is fixedly installed at the lower end of the lifting frame (4), the sliding plate (6) is installed on the electric sliding rail A (5), the electric sliding rail A (5) is used for moving the sliding plate (6) left and right, the hydraulic cylinder A (7) is fixedly installed at the lower end of the sliding plate (6), the push rod (8) is installed at the output end of the lower portion of the hydraulic cylinder A (7), and the three-jaw chuck A (9) is fixedly installed at the lower end of the push rod (8).

3. An apparatus for the automated assembly of a water pump shaft bearing assembly as defined in claim 1 wherein, The shaft clamping and moving mechanism includes an electric sliding rail B (10), a sliding block (11), a support box (12), and a three-jaw chuck B (13), the electric sliding rail B (10) is fixedly installed at the upper end of the bottom plate (1), the sliding block (11) is installed on the electric sliding rail B (10), the electric sliding rail B (10) is used for moving the sliding block (11) left and right, the support box (12) is fixedly installed at the upper end of the sliding block (11), and the three-jaw chuck B (13) is fixedly installed in the support box (12).

4. An apparatus for the automated assembly of a water pump shaft bearing assembly as defined in claim 3 wherein, It also includes an oil discharge pipe (19), the support box (12) is provided with the oil discharge pipe (19), and the oil discharge pipe (19) is provided with a valve.

5. An apparatus for the automated assembly of a water pump shaft bearing assembly as defined in claim 4 wherein, The upper end of the sliding block (11) is provided with a high-temperature-resistant coating.

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