A pump shaft sealing ring mounting tool

Abstract

The utility model belongs to the field of installation frock, specifically is a kind of pump shaft sealing ring installation frock, including pump shaft body;Sealing ring groove is set in pump shaft body side wall;Sealing ring groove is set in pump shaft body top end position;Jig is provided in pump shaft body top end;Feeding end is provided in jig top end;Discharge end is provided in jig bottom end;Inclined surface is set in jig side wall;Through the diameter of feeding end less than discharge end, when sealing ring is set from one end of feeding end, forcibly open sealing ring is reduced, just sealing ring is set from feeding end, and it can be easily slid into jig middle part, the smooth and labor-saving of further increasing sealing ring groove middle part when setting sealing ring using jig, the setting of sealing ring is quickly completed, and the operation difficulty is greatly reduced, when sealing ring is directly taken and set in pump shaft body top, sealing ring still needs to be applied to pull force and open, to set in sealing ring groove middle part, cause sealing ring installation difficulty.

Description

Technical Field

[0001] This utility model relates to the field of installation fixtures, specifically a pump shaft seal ring installation fixture. Background Technology

[0002] The pump shaft is the core transmission and load-bearing component of pump equipment. It is usually a cylindrical metal rod structure, with one end connected to a power source such as a motor, and the other end extending into the pump body and installing working parts such as impellers and gears. Its main function is to transmit the rotational motion of the power source to the internal components, drive the impeller to rotate at high speed to generate suction and pressure, and realize the transportation of liquid.

[0003] When installing the pump shaft, first clean the mounting contact surfaces between the pump shaft and the pump body, and check the journal for scratches or wear. Next, place the bearings in the designated positions on the pump shaft, gently tap them in with a special tool, and ensure the clearance meets the requirements. Then, slowly install the pump shaft and bearings into the pump body bearing housing, adjusting the position to align the center line of the shaft with the center line of the pump body. Next, install the sealing ring or mechanical seal at the sealing part between the pump shaft and the pump body, and evenly tighten the sealing cover screws to prevent leakage. Finally, install the impeller, coupling, and other components on the corresponding ends of the pump shaft, tighten the fixing nuts, and manually rotate the pump shaft to confirm that there is no jamming or abnormal noise. After installation, a test run is required to check for problems such as leakage and excessive vibration.

[0004] With the increasing popularity of multistage pumps, the pump shaft is becoming longer and longer, making the installation of sealing rings on the pump shaft very difficult and inefficient. Therefore, a pump shaft sealing ring installation fixture is proposed to address the above problems. Utility Model Content

[0005] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: A pump shaft sealing ring installation fixture, comprising a pump shaft body; a sealing ring groove is formed on the side wall of the pump shaft body; the sealing ring groove is located at the top end of the pump shaft body; a fixture is provided at the top end of the pump shaft body; a feeding end is provided at the top end of the fixture; a discharging end is provided at the bottom end of the fixture; and an inclined surface is formed on the side wall of the fixture. Because the diameter of the feeding end is smaller than that of the discharging end, when the sealing ring is fitted from the feeding end, it reduces the need to forcibly open the sealing ring. The sealing ring can easily slide into the middle of the fixture simply by fitting it from the feeding end. This reduces the risk of the feeding end diameter and the sealing ring diameter mismatch, which could cause jamming when fitted onto the top of the fixture. Using the fixture further increases the smoothness and effort required when fitting the sealing ring into the middle of the sealing ring groove, quickly completing the installation of the sealing ring and significantly reducing the difficulty of operation. It also reduces the difficulty of installing the sealing ring, which previously required applying a pulling force to open it when directly picking it up and fitting it onto the top of the pump shaft body.

[0007] Preferably, a fixing seat is provided at the top of the feeding end; a hook is fixedly connected to the top of the fixing seat; the hook is L-shaped; the sealing ring can be directly hooked up by the hook, reducing the risk of the sealing ring falling off during the process of directly picking up the sealing ring and causing contamination of the sealing ring surface. After the sealing ring is hooked up by the hook, it can be directly aligned with the middle of the feeding end and fitted, eliminating the intermediate step of manual picking and alignment, and quickly completing the picking, placement and fitting of multiple sets of sealing rings.

[0008] Preferably, a slot is provided at the top of the inclined surface; the slot is located near the fixed base; a pin is slidably connected to the top of the slot; after the pin is inserted into the slot, it forms a block on the side of the inclined surface, which can prevent the sealing ring from slipping from the fixture, reduce the chance of the sealing ring falling off from the middle of the fixture, and prevent the sealing ring from splashing due to elasticity, which would require repeated removal and re-installation.

[0009] Preferably, the inclined sidewall is provided with an anti-slip pad; the anti-slip pad wraps around the inclined sidewall; by wrapping the inclined sidewall with the anti-slip pad, the surface roughness can increase the friction between the hand and the fixture, making the grip on the fixture more stable, reducing operational errors caused by slippage after applying lubricating oil to the fixture surface, and improving the controllability of the installation process.

[0010] Preferably, a screw is threadedly connected to the top of the feeding end; a fixed seat is fixedly connected to the top of the screw; through the threaded connection between the screw and the feeding end, the hook-picking component can be disassembled simply by rotating the fixed seat, allowing for quick replacement of hooks of different specifications for different sizes of sealing rings, thus ensuring smooth hooking of the sealing rings.

[0011] Preferably, the fixture has a groove on its side wall; the groove is located at one end of the unloading end; the groove serves as a buffer position for the sealing ring, so that when the sealing ring is fitted in the middle of the sealing ring groove, it can be fitted individually, reducing the stacking of multiple sealing rings in the middle of the sealing ring groove due to applying tension to multiple sets of rubber rings at one time, and ensuring that each sealing ring can be installed independently in the sealing ring groove position.

[0012] The advantages of this utility model are:

[0013] 1. The pump shaft seal ring installation fixture of this utility model reduces the need to forcibly open the seal ring when it is fitted from the loading end to the unloading end. The seal ring can be easily slid into the middle of the fixture simply by fitting it from the loading end. This reduces the need for the loading end diameter to be mismatched with the seal ring diameter, which could cause jamming when fitting it to the top of the fixture. Using the fixture further increases the smoothness and effort required when fitting the seal ring to the middle of the seal ring groove, allowing for quick installation of the seal ring and significantly reducing the difficulty of operation. It also eliminates the need to apply a pulling force to open the seal ring when directly picking it up and fitting it to the top of the pump shaft body, which makes the installation of the seal ring difficult.

[0014] 2. The pump shaft seal ring installation fixture of this utility model can directly hook the seal ring with a hook, reducing the risk of the seal ring falling off during the direct handling process and causing contamination of the seal ring surface. After the seal ring is hooked, it can be directly aligned with the middle of the feeding end and fitted, eliminating the intermediate step of manual handling and alignment, and quickly completing the picking, placing and fitting of multiple sets of seal rings. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the main body of this utility model;

[0017] Figure 2 This is a schematic diagram of the sealing ring groove in this utility model;

[0018] Figure 3 This is a schematic diagram of the fixture in this utility model;

[0019] Figure 4 This is a schematic diagram of the hook structure in this utility model;

[0020] Figure 5 This is a schematic diagram of the groove structure in this utility model.

[0021] In the diagram: 1. Pump shaft body; 11. Sealing ring groove; 12. Fixture; 13. Feeding end; 14. Discharging end; 15. Inclined surface; 2. Fixed seat; 21. Hook; 3. Slot; 31. Pin; 4. Anti-slip pad; 5. Screw; 6. Groove. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0023] Specific implementation examples are given below.

[0024] like Figures 1 to 5As shown in the figure, a pump shaft seal ring installation fixture according to an embodiment of the present invention includes a pump shaft body 1; a seal ring groove 11 is formed on the side wall of the pump shaft body 1; the seal ring groove 11 is located at the top end of the pump shaft body 1; a fixture 12 is provided at the top end of the pump shaft body 1; a loading end 13 is provided at the top end of the fixture 12; a unloading end 14 is provided at the bottom end of the fixture 12; an inclined surface 15 is formed on the side wall of the fixture 12; during operation, multiple sets of seal rings are loaded from the loading end. The feed end 13 is fitted with a diameter smaller than the discharge end 14, ensuring smooth installation of the sealing ring. After passing the inclined surface 15, it stops at the side of the fixture 12. Multiple sets of sealing rings are then fitted around the fixture 12. Before fitting, lubricant can be applied to the surface of the fixture 12. The fixture 12 can then be moved to the top of the pump shaft body 1. The top of the pump shaft body 1 is then aligned with the discharge end 14, and the top of the pump shaft body 1 is inserted into the discharge end 14, where the sealing ring will remain. At the groove 11, the pump shaft body 1 and the fixture 12 are connected as a whole. Then, a pulling force is applied to the sealing ring fitted around the fixture 12, which can move the sealing ring from the top of the fixture 12 to the sealing ring groove 11, separating the unloading end 14 from the pump shaft body 1, thus completing the installation of the sealing ring on the pump shaft body 1. Since the diameter of the loading end 13 is smaller than that of the unloading end 14, when the sealing ring is fitted from the loading end 13, it is less necessary to forcibly open the sealing ring; it is sufficient to simply fit the sealing ring from the loading end 13. The material can easily slide into the middle of the fixture 12, reducing the risk of mismatch between the diameter of the feeding end 13 and the diameter of the sealing ring, which could cause jamming when the sealing ring is fitted onto the top of the fixture 12. Using the fixture 12 can further increase the smoothness and effort required when fitting the sealing ring into the middle of the sealing ring groove 11, allowing for quick fitting of the sealing ring and significantly reducing the difficulty of operation. This also reduces the difficulty of installing the sealing ring, which is caused by the need to apply a pulling force to the sealing ring to open it when directly picking it up and fitting it onto the top of the pump shaft body 1.

[0025] like Figures 3 to 4 As shown, a fixed seat 2 is provided at the top of the feeding end 13; a hook 21 is fixedly connected to the top of the fixed seat 2; the hook 21 is L-shaped; during operation, when multiple sets of sealing rings need to be fitted onto the middle of the fixture 12, the sealing rings need to be picked up one by one. At this time, a gripping force can be applied to the fixture 12, and then the hook 21 can be aligned with the sealing ring. The hook 21 can hook up the sealing ring, and then directly fit it onto the middle of the feeding end 13; the hook 21 can directly hook up the sealing ring, reducing the chance of the sealing ring falling off during the process of directly picking up the sealing ring, causing the surface of the sealing ring to be contaminated. After the hook 21 hooks up the sealing ring, it can be directly aligned with the middle of the feeding end 13 for fitting, eliminating the intermediate step of manual picking and alignment, and quickly completing the picking, placing and fitting of multiple sets of sealing rings.

[0026] like Figure 4As shown, a slot 3 is provided at the top of the inclined surface 15; the slot 3 is located on the side near the fixed base 2; a pin 31 is slidably connected to the top of the slot 3; during operation, after the sealing ring is fitted in the middle of the fixture 12, the pin 31 can be inserted into the slot 3. The slot 3 and the pin 31 will form a magnetic attraction, fixing the pin 31 so that when the sealing ring fitted in the middle of the fixture 12 slips and falls from the loading end 13, the pin 31 can block the sealing ring; after the pin 31 is inserted into the slot 3, it forms a barrier on the side of the inclined surface 15, which can stop the sealing ring from slipping from the fixture 12, reducing the chance of the sealing ring falling off from the middle of the fixture 12 and causing the sealing ring to splash due to elasticity, requiring repeated removal and refitting.

[0027] like Figure 3 As shown, the inclined surface 15 is provided with an anti-slip pad 4 on its side wall; the anti-slip pad 4 wraps around the side wall of the inclined surface 15; during operation, the feeding end 14 is connected to the top of the pump shaft body 1, and when the sealing ring is installed in the sealing ring groove 11, the anti-slip pad 4 can be held, which can increase the friction and make the fixture 12 stable when the sealing ring is fitted; by wrapping the side wall of the inclined surface 15 with the anti-slip pad 4, its surface roughness can increase the friction between the hand and the fixture 12, making the grip on the fixture 12 more stable, reducing operational errors caused by slippage after the surface of the fixture 12 is coated with lubricating oil, and improving the controllability of the installation process.

[0028] like Figure 4 As shown, a screw 5 is threadedly connected to the top of the feeding end 13; a fixed seat 2 is fixedly connected to the top of the screw 5; during operation, a rotational force can be applied to the fixed seat 2 to drive the screw 5 to rotate at the top of the feeding end 13, thereby disassembling and installing the hook 21 from the top of the feeding end 13 as a whole; through the threaded connection between the screw 5 and the feeding end 13, the hook 21 hooking component can be disassembled simply by rotating the fixed seat 2, allowing for quick replacement of hooks 21 of different specifications for different sizes of sealing rings, making the hooking of sealing rings smooth.

[0029] like Figure 5 As shown, the jig 12 has a groove 6 on its side wall; the groove 6 is located at one end of the unloading end 14; during operation, when a pulling force is applied to the sealing ring at the top of the jig 12, the sealing ring near the unloading end 14 will first enter the middle of the groove 6, so that when the sealing ring is fitted in the middle of the sealing ring groove 11, one sealing ring is fitted in one sealing ring groove 11; by using the groove 6 as a buffer position for the sealing ring fitting, when the sealing ring is fitted in the middle of the sealing ring groove 11, it can be fitted individually, reducing the stacking of multiple sealing rings in the middle of the sealing ring groove 11 due to applying a pulling force to multiple sets of rubber rings at one time, ensuring that each sealing ring can be independently installed in the sealing ring groove 11 position.

[0030] Working principle: Multiple sets of sealing rings are fitted from the feeding end 13, whose diameter is smaller than that of the unloading end 14, to ensure smooth fitting of the sealing rings. After passing the inclined surface 15, the rings stop at the side of the fixture 12. Before fitting, lubricating oil can be applied to the surface of the fixture 12. The fixture 12 can then be moved to the top of the pump shaft body 1. The top of the pump shaft body 1 is then aligned with the unloading end 14, and the top of the pump shaft body 1 is inserted into the unloading end 14. Internally, the unloading end 14 will stop at the sealing ring groove 11, forming an overall docking between the pump shaft body 1 and the fixture 12. Then, a pulling force is applied to the sealing ring fitted around the fixture 12, moving the sealing ring from the top of the fixture 12 to the sealing ring groove 11, separating the unloading end 14 from the pump shaft body 1, thus completing the installation of the sealing ring on the pump shaft body 1. When multiple sets of sealing rings need to be fitted into the middle of the fixture 12, each sealing ring needs to be removed individually. At this time, a gripping force can be applied to the fixture 12, and then... Align hook 21 with the sealing ring. Hook 21 can hook the sealing ring up and then directly slip it onto the middle of the loading end 13. After the sealing ring is slipped onto the middle of the fixture 12, the pin 31 can be inserted into the slot 3. The slot 3 and the pin 31 will form a magnetic attraction, fixing the pin 31 in place. When the sealing ring slips off the middle of the fixture 12 and falls from the loading end 13, the pin 31 can block the sealing ring. The unloading end 14 is connected to the top of the pump shaft body 1. When the sealing ring is installed in the sealing ring groove 11... The anti-slip pad 4 can be gripped, which increases friction and makes the fixture 12 stable when the sealing ring is fitted. A rotational force can be applied to the fixed seat 2, which drives the screw 5 to rotate at the top of the feeding end 13. The hook 21 can be disassembled and installed from the top of the feeding end 13. When a pulling force is applied to the sealing ring at the top of the fixture 12, the sealing ring near the unloading end 14 will enter the middle of the groove 6 first, so that when the sealing ring is fitted in the middle of the sealing ring groove 11, one sealing ring is fitted in one sealing ring groove 11.

[0031] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A pump shaft seal ring installation fixture, characterized in that: The pump shaft body (1) includes a pump shaft body (1); a sealing ring groove (11) is provided on the side wall of the pump shaft body (1); the sealing ring groove (11) is located at the top of the pump shaft body (1); a fixture (12) is provided at the top of the pump shaft body (1); a feeding end (13) is provided at the top of the fixture (12); a discharging end (14) is provided at the bottom of the fixture (12); and an inclined surface (15) is provided on the side wall of the fixture (12).

2. The pump shaft seal ring installation fixture according to claim 1, characterized in that: The top of the feeding end (13) is provided with a fixed seat (2); the top of the fixed seat (2) is fixed with a hook (21); the hook (21) is L-shaped.

3. The pump shaft seal ring installation fixture according to claim 2, characterized in that: The inclined surface (15) has a slot (3) at its top; the slot (3) is located on the side near the fixed base (2); the top of the slot (3) is slidably connected to a pin (31).

4. The pump shaft seal ring installation fixture according to claim 3, characterized in that: The inclined surface (15) sidewall is provided with an anti-slip pad (4); the anti-slip pad (4) wraps around the inclined surface (15) sidewall.

5. The pump shaft seal ring installation fixture according to claim 4, characterized in that: The top end of the feeding end (13) is threaded with a screw (5); the top end of the screw (5) is fixed with a fixing seat (2).

6. The pump shaft seal ring installation fixture according to claim 5, characterized in that: The jig (12) has a groove (6) on its side wall; the groove (6) is located at one end of the unloading end (14).

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