Connecting device for water turbine installation

Abstract

The utility model relates to the technical field of connecting shaft devices of water turbines, in particular to a connecting device for water turbine installation, which comprises a water turbine shaft, a right threaded seat slidably connected to the surface of the water turbine shaft, a telescopic connecting mechanism clamped to the right side of the water turbine shaft, a connecting buckle clamped to the right end of the telescopic connecting mechanism, and a left connecting seat clamped to the right side of the connecting buckle. A left clamping block is fixedly connected to the left end of the left connecting base, a transmission shaft is connected to the right side of the left connecting base in a clamped mode, a left threaded base is slidably connected to the surface of the transmission shaft, and a waterproof fastening mechanism is connected to the surface of a connecting buckle in a threaded mode. The purpose of extending the transmission shaft is achieved, installation is convenient, fastening and waterproof treatment is conducted on the connecting position through the waterproof fastening mechanism, further fastening of the connecting position can be achieved through the waterproof fastening mechanism, the service life of the connecting position is prolonged, and the cost of follow-up maintenance and replacement is also avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of water turbine coupling devices, in particular to a water turbine installation coupling device. Background Art

[0002] A water turbine is a power machine that converts the energy of water flow into rotational mechanical energy. It belongs to the turbine machinery among fluid machinery. Most modern water turbines are installed in hydropower stations to drive generators to generate electricity. In a hydropower station, water from an upstream reservoir is led to the water turbine through a water diversion pipe, which drives the water turbine runner to rotate and drives the generator to generate electricity. When installing the water turbine, it is necessary to connect the shaft of the water turbine with the shaft of the generator through a device to play a role in power transmission. Most existing technologies are connected by welding or flanges. These connection methods are relatively labor-saving during installation, but difficult to disassemble during subsequent maintenance and replacement, which is relatively inconvenient. In this regard, this case provides a connection device for installing a water turbine to improve it. Utility Model Content

[0003] The purpose of the utility model is to provide a connection device for installing a water turbine to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solution: it includes a turbine shaft, a right threaded seat is slidably connected to the surface of the turbine shaft, a telescopic connection mechanism is clamped on the right side of the turbine shaft, a connecting buckle is clamped on the right end of the telescopic connection mechanism, a left connecting seat is clamped on the right side of the connecting buckle, a left clamping block is fixedly connected to the left end of the left connecting seat, a transmission shaft is clamped on the right side of the left connecting seat, a left threaded seat is slidably connected to the surface of the transmission shaft, and a waterproof fastening mechanism is threadedly connected to the surface of the connecting buckle.

[0005] Preferably, the inner end surfaces of the turbine shaft and the transmission shaft are provided with clamping blocks, the surface of the connecting buckle is provided with threads, the surface of the left clamping block is provided with threads corresponding to the connecting buckle, the inner walls of the right thread seat and the left thread seat are provided with thread lines, the right end surface of the left clamping block is provided with a thread groove corresponding to the left thread seat, and the clamping grooves on the left and right sides of the connecting buckle are staggered.

[0006] Preferably, the telescopic connection mechanism includes a cylinder, the left end of the cylinder is clamped in the right end of the turbine shaft, an inner cross rod is fixedly connected to the middle part of the cylinder, a right connecting seat is slidably connected to the inner wall of the cylinder, an inner cross groove is fixedly connected to the middle part of the right connecting seat, a limiting ring is fixedly connected to the right end of the right connecting seat, and a right clamping block is fixedly connected to the right end of the limiting ring.

[0007] Preferably, a thread groove corresponding to the right threaded seat is opened on the left end surface of the cylinder, the inner cross rod is inserted into the inner cross slot, the right clamping block is correspondingly clamped on the left side of the connecting buckle, and a thread groove corresponding to the connecting buckle is opened on the surface of the right clamping block.

[0008] Preferably, the right end of the cylinder is threadedly connected to the inner wall of the right threaded seat, the right clamping block and the left clamping block are staggered, and the right side of the cylinder fits on the left side of the limiting ring.

[0009] Preferably, the waterproof fastening mechanism includes a threaded sleeve, a middle portion of which is threadedly connected to the surface of the connecting buckle, an outer shell is sleeved on the outer side of the threaded sleeve, a sealing ring is fixedly connected to the inner wall of the outer shell, and a nut is threadedly connected to the surface of the outer shell.

[0010] Preferably, the left and right sides of the inner wall of the threaded sleeve are correspondingly threadedly connected to the surfaces of the right block and the left block, the number of the outer shells is two, the two outer shells are symmetrically sleeved on the front and rear sides of the threaded sleeve, and the two threaded sleeves are fixedly connected by nuts.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1. The utility model can adjust the power transmission distance through the telescopic connection mechanism. During installation, there is no need to finely adjust the distance between the turbine shaft and the generator shaft. The telescopic connection mechanism can be extended to achieve the purpose of extending the transmission shaft, thereby saving a lot of time and manpower during installation.

[0013] 2. The utility model fastens and waterproofs the connection through a waterproof fastening mechanism. The waterproof fastening mechanism can not only further fasten the connection to prevent the threaded sleeve from slipping when the turbine shaft rotates, but also seal and waterproof the connection to prevent the connection from rusting due to long-term exposure to high humidity areas, thereby increasing the service life of the connection and avoiding the cost of subsequent maintenance and replacement.

[0014] The utility model provides a connecting device for installing a water turbine. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a front view structural diagram of a water turbine installation connection device of the utility model;

[0016] Figure 2 This is a front expanded structural diagram of a water turbine installation connection device of the utility model;

[0017] Figure 3 This is a schematic structural diagram of a connection buckle expansion diagram of a water turbine installation connection device of the utility model;

[0018] Figure 4 This is a structural schematic diagram of the expanded view of the left connecting seat of a water turbine installation connecting device of the utility model;

[0019] Figure 5 This is a schematic diagram of the structure of a telescopic connection mechanism of a connection device for installing a water turbine according to the utility model;

[0020] Figure 6 The utility model is a schematic diagram of the waterproof fastening mechanism structure of a connection device for installing a water turbine.

[0021] In the figure: 1. turbine shaft; 2. right threaded seat; 3. telescopic connection mechanism; 311. cylinder; 312. inner cross rod; 313. right connecting seat; 314. inner cross groove; 315. limit ring; 316. right clamping block; 4. connecting buckle; 5. left connecting seat; 51. left clamping block; 6. transmission shaft; 7. left threaded seat; 8. waterproof fastening mechanism; 811. threaded sleeve; 812. housing; 813. sealing ring; 814. nut. DETAILED DESCRIPTION

[0022] In order to make the purpose and technical solution of the utility model clearly and completely described, and the advantages more clearly understood, the embodiments of the utility model are further described in detail in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are part of the embodiments of the utility model, not all of the embodiments, and are only used to explain the embodiments of the utility model, and are not used to limit the embodiments of the utility model. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Example

[0023] See also Figures 1 to 6 The utility model provides a technical solution: it includes a turbine shaft 1, a right threaded seat 2 is slidably connected to the surface of the turbine shaft 1, a telescopic connection mechanism 3 is clamped on the right side of the turbine shaft 1, a connecting buckle 4 is clamped on the right end of the telescopic connection mechanism 3, a left connecting seat 5 is clamped on the right side of the connecting buckle 4, a left clamping block 51 is fixedly connected to the left end of the left connecting seat 5, a transmission shaft 6 is clamped on the right side of the left connecting seat 5, a left threaded seat 7 is slidably connected to the surface of the transmission shaft 6, a waterproof fastening mechanism 8 is threadedly connected to the surface of the connecting buckle 4, a clamping block is arranged on the inner end surface of the turbine shaft 1 and the transmission shaft 6, a thread is opened on the surface of the connecting buckle 4, a thread corresponding to the connecting buckle 4 is opened on the surface of the left clamping block 51, a thread line is arranged on the inner wall of the right threaded seat 2 and the left threaded seat 7, a thread groove corresponding to the left threaded seat 7 is opened on the right end surface of the left clamping block 51, and the clamping grooves on the left and right sides of the connecting buckle 4 are staggered. Example

[0024] On the basis of the first embodiment, in order to realize the extension of the power rotation shaft.

[0025] Further, the telescopic connection mechanism 3 includes a cylinder 311, the left end of the cylinder 311 is clamped on the right end of the turbine shaft 1, an inner cross rod 312 is fixedly connected to the middle of the cylinder 311, a right connecting seat 313 is slidably connected to the inner wall of the cylinder 311, an inner cross groove 314 is fixedly connected to the middle of the right connecting seat 313, a limiting ring 315 is fixedly connected to the right end of the limiting ring 315, and a right clamping block 316 is fixedly connected to the right end of the limiting ring 315;

[0026] The left end surface of the cylinder 311 is provided with a thread groove corresponding to the right thread seat 2, the inner cross rod 312 is inserted into the inner cross slot 314, the right clamping block 316 is correspondingly clamped on the left side of the connecting buckle 4, and the surface of the right clamping block 316 is provided with a thread groove corresponding to the connecting buckle 4;

[0027] The right end of the cylinder 311 is threadedly connected to the inner wall of the right threaded seat 2 , the right clamping block 316 and the left clamping block 51 are staggered, and the right side of the cylinder 311 is attached to the left side of the limiting ring 315 .

[0028] It should be noted that when extending the transmission distance, first insert the left end of the cylinder 311 into the right end of the turbine shaft 1 and tighten it through the right threaded seat 2, then insert the transmission shaft 6 into the right end of the left connecting seat 5 and tighten it through the left threaded seat 7. After the fixation of the two ends is completed, the right end of the connecting buckle 4 is clamped with the left clamping block 51 and preliminarily fixed by the threaded sleeve 811. At this time, the right connecting seat 313 can be pulled to the right to move it so that the right connecting seat 313 extends from the inside of the cylinder 311. At the same time, the inner cross rod 312 also partially disengages from the inner cross groove 314, making it easier for the right clamping block 316 to clamp with the left side of the connecting buckle 4, and then the threaded sleeve 811 is rotated to move the threaded sleeve 811 to the left and fit with the right side of the limiting ring 315, thereby fixing the left clamping block 51, the connecting buckle 4 and the right clamping block 316 to extend the transmission shaft. The cross-shaped design of the inner cross rod 312 and the inner cross groove 314 can achieve better power transmission and prevent the right connecting seat 313 from sliding in the cylinder 311 and causing power transmission failure. Example

[0029] On the basis of the second embodiment, in order to achieve fastening and waterproofing of the connection.

[0030] Furthermore, the waterproof fastening mechanism 8 includes a threaded sleeve 811, the middle part of the threaded sleeve 811 is threadedly connected to the surface of the connecting buckle 4, the outer side of the threaded sleeve 811 is sleeved with a shell 812, the inner wall of the shell 812 is fixedly connected with a sealing ring 813, and the surface of the shell 812 is threadedly connected with a nut 814;

[0031] The left and right sides of the inner wall of the threaded sleeve 811 are correspondingly threadedly connected to the surfaces of the right clamping block 316 and the left clamping block 51. There are two outer shells 812, which are symmetrically sleeved on the front and rear sides of the threaded sleeve 811. The two threaded sleeves 811 are fixedly connected by nuts 814.

[0032] It should be noted that when fixing the connection of the connecting buckle 4, because the threads on the surfaces of the right clamping block 316, the connecting buckle 4 and the left clamping block 51 are arranged correspondingly, the threaded sleeve 811 is rotated to move the threaded sleeve 811 to the left, and the three are connected. Then the outer shells 812 on the front and rear sides are covered on the surface of the threaded sleeve 811, and the two outer shells 812 are fixed to the outside of the threaded sleeve 811 by the nut 814 to prevent the threaded sleeve 811 from sliding and falling off during power transmission. At the same time, the sealing ring 813 on the inner wall of the outer shell 812 can prevent water vapor from entering the connection and causing internal rust and damage. During subsequent repairs and maintenance, the parts can be disassembled one by one in the aforementioned manner to facilitate maintenance. At the same time, individual parts can be replaced to reduce maintenance costs.

[0033] In actual use, during installation, first insert the left end of the cylinder 311 into the right end of the turbine shaft 1 and tighten it through the right threaded seat 2, then insert the transmission shaft 6 into the right end of the left connecting seat 5 and tighten it through the left threaded seat 7. After completing the fixation of the two ends, the right end of the connecting buckle 4 is clamped with the left clamping block 51 and preliminarily fixed by the threaded sleeve 811. At this time, the right connecting seat 313 can be moved to the right by pulling the right connecting seat 313 so that the right connecting seat 313 extends from the inside of the cylinder 311. At the same time, the inner cross rod 312 also partially disengages from the inside of the inner cross clamping groove 314, so that the right clamping block 316 is clamped with the left side of the connecting buckle 4, and then the threaded sleeve 811 is rotated to move the threaded sleeve 811 to the left and fit the right side of the limit ring 315. The block 51, the connecting buckle 4 and the right block 316 are fixed together to realize the extension of the transmission shaft. There is no need to accurately calculate the distance between the turbine shaft and the generator shaft, which is convenient for installation. The cross-shaped design of the inner cross rod 312 and the inner cross slot 314 can realize better power transmission and prevent the right connecting seat 313 from sliding in the cylinder 311 and causing power transmission failure. The outer shells 812 on the front and rear sides are then covered on the surface of the threaded sleeve 811, and the two outer shells 812 are fixed to the outside of the threaded sleeve 811 by the nut 814 to prevent the threaded sleeve 811 from sliding and falling off during power transmission. At the same time, the sealing ring 813 on the inner wall of the outer shell 812 can prevent water vapor from entering the connection and causing internal rust and damage, and the installation of the device can be completed.

[0034] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A connection device for installing a turbine, comprising a turbine shaft (1), characterized in that: A right threaded seat (2) is slidably connected to the surface of the turbine shaft (1); a telescopic connection mechanism (3) is clamped on the right side of the turbine shaft (1); a connecting buckle (4) is clamped on the right end of the telescopic connection mechanism (3); a left connecting seat (5) is clamped on the right side of the connecting buckle (4); a left clamping block (51) is fixedly connected to the left end of the left connecting seat (5); a transmission shaft (6) is clamped on the right side of the left connecting seat (5); a left threaded seat (7) is slidably connected to the surface of the transmission shaft (6); and a waterproof fastening mechanism (8) is threadedly connected to the surface of the connecting buckle (4).

2. A water turbine installation connection device according to claim 1, characterized in that: The inner end surfaces of the turbine shaft (1) and the transmission shaft (6) are provided with clamping blocks, the surface of the connecting buckle (4) is provided with threads, the surface of the left clamping block (51) is provided with threads corresponding to the connecting buckle (4), the inner walls of the right thread seat (2) and the left thread seat (7) are provided with thread lines, the right end surface of the left clamping block (51) is provided with a thread groove corresponding to the left thread seat (7), and the clamping grooves on the left and right sides of the connecting buckle (4) are staggered.

3. A water turbine installation connection device according to claim 1, characterized in that: The telescopic connection mechanism (3) comprises a cylinder (311), the left end of the cylinder (311) being clamped to the right end of the turbine shaft (1), an inner cross rod (312) being fixedly connected to the middle of the cylinder (311), a right connecting seat (313) being slidably connected to the inner wall of the cylinder (311), an inner cross clamping groove (314) being fixedly connected to the middle of the right connecting seat (313), a limit ring (315) being fixedly connected to the right end of the limit ring (315), and a right clamping block (316) being fixedly connected to the right end of the limit ring (315).

4. A water turbine installation connection device according to claim 3, characterized in that: The left end surface of the cylinder (311) is provided with a thread groove corresponding to the right thread seat (2); the inner cross rod (312) is inserted into the inner cross clamping groove (314); the right clamping block (316) is correspondingly clamped on the left side of the connecting buckle (4); and the surface of the right clamping block (316) is provided with a thread groove corresponding to the connecting buckle (4).

5. A water turbine installation connection device according to claim 3, characterized in that: The right end of the cylinder (311) is threadedly connected to the inner wall of the right threaded seat (2), the right clamping block (316) and the left clamping block (51) are arranged in a staggered manner, and the right side of the cylinder (311) is attached to the left side of the limiting ring (315).

6. A water turbine installation connection device according to claim 1, characterized in that: The waterproof fastening mechanism (8) comprises a threaded sleeve (811), the middle portion of the threaded sleeve (811) being threadedly connected to the surface of the connecting buckle (4), an outer shell (812) being sleeved on the outer side of the threaded sleeve (811), a sealing ring (813) being fixedly connected to the inner wall of the outer shell (812), and a nut (814) being threadedly connected to the surface of the outer shell (812).

7. A water turbine installation connection device according to claim 6, characterized in that: The left and right sides of the inner wall of the threaded sleeve (811) are correspondingly threadedly connected to the surfaces of the right clamping block (316) and the left clamping block (51). The number of the outer shells (812) is two, and the two outer shells (812) are symmetrically sleeved on the front and rear sides of the threaded sleeve (811). The two threaded sleeves (811) are fixedly connected by nuts (814).

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