Air shroud ring installation auxiliary device for overhauling large water pump

Abstract

The utility model relates to an air shroud ring installation auxiliary device for overhauling a large water pump, which belongs to the technical field of water pump overhauling, and particularly comprises an installation seat and an operation handle installed on the installation seat, and a fixed clamping assembly and a movable clamping assembly are installed at the front end of the installation seat. The movable clamping assembly is installed on the installation base through the transmission mechanism, the transmission mechanism is used for controlling the movable clamping assembly to move, the fixed clamping assembly and the movable clamping assembly are the same in structure and each comprise a guide plate, a movable clamping plate and a clamping control mechanism, baffles are installed at the two ends of the guide plate respectively, and the movable clamping plate and the clamping control mechanism are arranged on the fixed clamping assembly. Wherein the baffle on one side is installed on the installation base, a movable clamping plate is installed on the guide plate, a sliding guide groove installed on the guide plate in a sliding mode is formed in the bottom of the movable clamping plate, and a clamping control mechanism is installed between the movable clamping plate and the baffle on one side. And the mounting efficiency and the air shroud ring gluing quality can be effectively improved.

Description

Technical Field

[0001] The utility model relates to an air belt installation auxiliary device for overhauling a large water pump, belonging to the technical field of overhauling a water pump. Background Art

[0002] The maintenance seal of a large water pump is a sealing device that is put into operation after the water pump stops running. Its function is to prevent the pressure water on the water inlet and outlet sides of the water pump from overflowing into the water pump pit along the gap between the water pump top cover and the large shaft. According to its structural type, it can be divided into air belt type, mechanical type and lifting type maintenance seal. In practice, most of them use air belt maintenance seal. The air belt maintenance seal is mainly composed of a fixed ring and a rubber air belt. When the water pump stops running, 0.4-0.7Mpa compressed air is filled into the air belt to expand the air belt rubber and hold the main shaft tightly to prevent water from overflowing; when the water pump is running, the compressed gas in the air belt is discharged in advance, and the belt shrinks automatically, so that the gap between the air belt and the main shaft is maintained at 1.5-2mm.

[0003] At present, air belts need to be replaced regularly after long-term use. The existing replacement method is to cut the belts on site, wrap them around the main shaft and glue them to form a circular sealing structure. However, due to the narrow installation position of the air belts, it is inconvenient to manually connect the belts, and the gluing requires a certain amount of pressure and time. If it is only controlled manually, it is easy to cause local loose gluing. After a period of operation, the gluing parts are prone to local cracking due to repeated inflation and deflation of the belts. Utility Model Content

[0004] In order to solve the technical problems existing in the prior art, the utility model provides an air belt installation auxiliary device for large water pump maintenance, which has a simple structure, is easy to use, and can effectively improve the installation efficiency and the air belt bonding quality.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is an air belt installation auxiliary device for large water pump maintenance, including a mounting seat and an operating handle installed on the mounting seat, a fixed clamping assembly and a movable clamping assembly are installed at the front end of the mounting seat, the movable clamping assembly is installed on the mounting seat through a transmission mechanism, and the transmission mechanism is used to control the movement of the movable clamping assembly, the fixed clamping assembly and the movable clamping assembly have the same structure, both of which include a guide plate, a movable clamping plate and a clamping control mechanism, baffles are respectively installed at both ends of the guide plate, and the baffle on one side is installed on the mounting seat, and a movable clamping plate is installed on the guide plate, and a sliding guide groove slidably installed on the guide plate is provided at the bottom of the movable clamping plate, and a clamping control mechanism is installed between the movable clamping plate and the baffle on one side.

[0006] Preferably, the clamping control mechanism includes an adjusting connecting plate, an adjusting bolt and a control nut. A limiting long hole is provided at the bottom of the guiding plate. The control nut is installed on the adjusting bolt. The bottom of the adjusting bolt is installed in the limiting long hole, and an upper limiting plate and a lower limiting plate are installed on the adjusting bolt. The upper limiting plate and the lower limiting plate are respectively located at the top and bottom of the guiding plate. The control nut and the movable clamping plate, and the control nut and the baffle are respectively connected through the adjusting connecting plate. The two ends of the adjusting connecting plate are respectively hinged on the movable clamping plate and the baffle.

[0007] Preferably, the transmission mechanism includes an installation groove provided in the installation seat and a driving lead screw and a guiding rod installed in the installation groove. The baffle of the movable clamping assembly is installed on the driving lead screw and the guiding rod through a lead screw nut and a guiding sleeve. A worm gear is installed on the driving lead screw. A transmission rod is installed in the operating handle. A worm is provided at the front end of the transmission rod. The worm is meshed with the worm gear. A rotating handle is installed at the rear of the worm.

[0008] Preferably, buffer rubbers are installed at the bottom of the guiding plate and on the outer surface of one of the baffles.

[0009] Compared with the prior art, the utility model has the following technical effects: The utility model has a simple structure and a reasonable design. The two clamping plate structures are adopted to clamp the air shroud. The clamping plate structure does not occupy space and can clamp and fix the air shroud in a narrow space to complete the butt joint of the air shroud. In this way, during gluing, there is no need for manual butt joint and pressing of the air shroud, which can ensure that the gluing of the air shroud is more convenient and reliable, and further ensure that the installation of the air shroud is more convenient, effectively improving the installation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 is a schematic structural view of the utility model.

[0011] Figure 2 is a schematic internal structural view of the utility model.

[0012] Figure 3 is a schematic structural view of the clamping control mechanism in the utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0013] In order to make the technical problems, technical solutions and beneficial effects to be solved by the utility model clearer, the following further describes the utility model in detail with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the utility model.

[0014] Such as Figures 1 to 3As shown in the figure, an air packing installation auxiliary device for large water pump maintenance includes a mounting base 1 and an operating handle 2 mounted on the mounting base. A fixed clamping assembly 3 and a movable clamping assembly 4 are installed at the front end of the mounting base 1. The movable clamping assembly 4 is installed on the mounting base 1 through a transmission mechanism, and the transmission mechanism is used to control the movement of the movable clamping assembly 4. The fixed clamping assembly 3 and the movable clamping assembly 4 have the same structure, and both include a guide plate 5, a movable clamping plate 7 and a clamping control mechanism. Baffles 6 are installed at both ends of the guide plate 5, and one of the baffles 6 is installed on the mounting base 1. A movable clamping plate 7 is installed on the guide plate 5. A sliding guide groove slidably installed on the guide plate 5 is provided at the bottom of the movable clamping plate 7. A clamping control mechanism is installed between the movable clamping plate 7 and one of the baffles 6.

[0015] The utility model uses a hand-held fixture structure to clamp and fix the air packing, and then completes the docking and gluing work of the air packing. When in use, the two ends of the air packing can be respectively clamped on the fixed clamping assembly 3 and the movable clamping assembly 4, and then the movable clamping assembly 4 is controlled by the transmission mechanism to move closer to the fixed clamping assembly 3, so that the air packing is completed docking. At the same time, the transmission mechanism can also adjust the pressure during the gluing of the air packing, so as to ensure reliable and stable gluing of the air packing. And the whole structure is relatively small and can be used in a narrow space, and the installation is simpler and more convenient. Buffer rubbers are installed on the bottom of the guide plate 5 and the outer surface of one of the baffles. The buffer rubber can play a protective role to avoid bumping during installation and causing damage to the pump shaft of the water pump.

[0016] As Figure 3 shown in the figure, the clamping control mechanism includes an adjusting connecting plate 8, an adjusting bolt 9 and a control nut 10. A limit long hole 11 is provided at the bottom of the guide plate 5. The control nut 10 is installed on the adjusting bolt 9. The bottom of the adjusting bolt 9 is installed in the limit long hole 11, and an upper limit plate 12 and a lower limit plate 13 are installed on the adjusting bolt 9. The upper limit plate 12 and the lower limit plate 13 are respectively located at the top and bottom of the guide plate 5. The control nut 10 and the movable clamping plate 7, the control nut 10 and the baffle 6 are respectively connected through the adjusting connecting plate 8, and both ends of the adjusting connecting plate 8 are respectively hinged on the movable clamping plate 7 and the baffle 6. The clamping control mechanism is controlled by an adjusting bolt. By screwing the adjusting bolt, the two adjusting connecting plates 8 can be unfolded or closed, so as to control the movement of the movable clamping plate 7 and realize the clamping and fixing of the air packing.

[0017] As Figure 2As shown in the figure, the transmission mechanism includes an installation groove 15 provided in the mounting base 1, a driving lead screw 16 and a guide rod 17 installed in the installation groove 15. The baffle of the movable clamping assembly 4 is installed on the driving lead screw 16 and the guide rod 17 through a nut and a guide sleeve. A worm gear 18 is installed on the driving lead screw 16. A transmission rod 14 is installed in the operating handle 2. A worm is provided at the front end of the transmission rod 14. The worm is engaged with the worm gear. A rotating handle 19 is installed at the rear of the worm. The transmission mechanism adopts a worm and worm gear structure. The driving lead screw 16 is driven to rotate through the worm and worm gear, and then the baffle of the movable clamping assembly 4 is driven to move along the driving lead screw 16, so as to realize the approach of the movable clamping assembly 4 to the fixed clamping assembly 3, thereby facilitating the butt joint of the air packing belt.

[0018] The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the scope of the present invention.

Claims

1. An auxiliary device for installing an air belt for overhauling a large water pump, comprising a mounting base and an operating handle mounted on the mounting base, characterized in that: A fixed clamping assembly and a movable clamping assembly are installed at the front end of the mounting seat, and the movable clamping assembly is installed on the mounting seat through a transmission mechanism. The transmission mechanism is used to control the movement of the movable clamping assembly. The fixed clamping assembly and the movable clamping assembly have the same structure and both include a guide plate, a movable clamping plate and a clamping control mechanism. Baffles are respectively installed at both ends of the guide plate, and the baffle on one side is installed on the mounting seat. A movable clamping plate is installed on the guide plate, and a sliding guide groove slidably installed on the guide plate is provided at the bottom of the movable clamping plate, and a clamping control mechanism is installed between the movable clamping plate and the baffle on one side.

2. The air belt installation auxiliary device for large water pump maintenance according to claim 1 is characterized in that: The clamping control mechanism includes an adjusting connecting plate, an adjusting bolt and a control nut. A limited long hole is arranged at the bottom of the guide plate. The control nut is installed on the adjusting bolt. The bottom of the adjusting bolt is installed in the limited long hole. An upper limit plate and a lower limit plate are installed on the adjusting bolt. The upper limit plate and the lower limit plate are respectively located at the top and the bottom of the guide plate. The control nut and the movable splint, and the control nut and the baffle are respectively connected by adjusting connecting plates. The two ends of the adjusting connecting plate are respectively hinged on the movable splint and the baffle.

3. The air belt installation auxiliary device for large water pump maintenance according to claim 1 is characterized in that: The transmission mechanism includes a mounting groove arranged in the mounting seat and a driving screw and a guide rod installed in the mounting groove. The baffle of the movable clamping assembly is installed on the driving screw and the guide rod through a nut and a guide sleeve. A worm gear is installed on the driving screw. A transmission rod is installed in the operating handle. A worm is arranged at the front end of the transmission rod. The worm is meshed with the worm gear. A rotating handle is installed at the rear of the worm.

4. The air belt installation auxiliary device for large water pump maintenance according to claim 1 is characterized in that: Buffer rubber is installed on the bottom of the guide plate and the outer surface of one of the baffles.

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