Positioning clamp for maintenance of hydroelectric power generation equipment

Abstract

The utility model relates to the technical field of maintenance equipment, and discloses a positioning fixture for maintenance of hydroelectric power generation equipment, which comprises a universal wheel, a mounting plate is fixedly connected to the top of the universal wheel, and an electric hydraulic rod is fixedly connected to a center shaft of one side, far away from the universal wheel, of the mounting plate. The servo motor is started clockwise, the servo motor operates to drive the threaded rod to rotate, the connecting rods are connected to the left end and the right end of the ball sliding block and the left end and the right end of the connecting rod, and the connecting rods can prevent the ball sliding block from rotating, so that the ball sliding block moves upwards when the threaded rod rotates, and the ball sliding block drives the bottom end of the connecting rod to move upwards; the top end of the connecting rod can push the first sliding blocks to move in the direction away from each other, the first sliding blocks can drive the clamping mechanisms to move, on the contrary, the servo motor is started anticlockwise, the clamping mechanisms can get close to each other, and therefore the distance between the clamping mechanisms can be adjusted according to the damage length of the pipeline or the thickness of a pipeline butt joint opening.

Description

Technical Field

[0001] The utility model relates to the technical field of maintenance equipment, in particular to a positioning fixture for maintaining hydropower equipment. Background Art

[0002] The basic principle of hydroelectric power generation is to build reservoirs or water diversion channels to guide water to power plants equipped with turbines. The water flow rotates through the turbine blades and drives the generator to generate electricity. Hydroelectric power generation is a clean and renewable energy source that does not produce greenhouse gases and pollutants such as carbon dioxide, and has little impact on the environment. During hydroelectric power generation, pipelines may leak or be damaged at the joints due to water pressure or other factors, requiring manual maintenance of the pipelines. During the maintenance process, support fixtures are required to support the pipelines.

[0003] In the existing maintenance process, it is difficult to adjust the distance between the positioning clamps according to the damaged length of the pipeline or the thickness of the pipeline interface, so multiple positioning clamps need to be used to clamp the pipeline, which makes the operation more complicated and affects the work efficiency. Utility Model Content

[0004] In order to solve the above technical problems, the utility model is achieved through the following technical solutions:

[0005] The utility model discloses a positioning fixture for maintaining hydroelectric power generation equipment, comprising a universal wheel, a mounting plate fixedly connected to the top of the universal wheel, an electric hydraulic rod fixedly connected to the middle axis of the mounting plate on a side away from the universal wheel, a plurality of telescopic rods fixedly connected to the side of the mounting plate away from the universal wheel, and also comprising: an adjusting mechanism, wherein the adjusting mechanism comprises a placement plate fixedly connected to the output end of the electric hydraulic rod, the bottom of the placement plate is fixedly connected to the top of the telescopic rod, the side of the placement plate away from the electric hydraulic rod is fixedly connected to two fixing frames, the sides of the two fixing frames close to each other are fixedly connected to two first sliding bars, the outer wall of the first sliding bar is slidably connected to two first sliding blocks, and the middle axis of the first sliding bar is fixedly connected to a fixing plate, so as to drive the adjusting mechanism to rise through the operation of the electric hydraulic rod, thereby adjusting the clamping height.

[0006] Furthermore, a servo motor is fixedly connected to the central axis of the side of the placement plate away from the electric hydraulic rod, and a threaded rod is fixedly connected to the output end of the servo motor. The top end of the threaded rod is rotatably connected to the bottom of the fixed plate, and the outer wall of the threaded rod is threadedly connected to a ball slider, and the left and right ends of the ball slider are rotatably connected to connecting rods, and the top ends of the two connecting rods are rotatably connected to the side of the first slider that is close to each other. This arrangement is to drive the ball slider to move along the threaded rod through the operation of the servo motor, thereby driving the bottom end of the connecting rod to move, causing the position of the top end of the connecting rod to change, thereby driving the fixing mechanism to move.

[0007] Furthermore, a clamping mechanism is provided on the top of the two first sliding blocks, and the clamping mechanism includes a limiting ring fixedly connected to the top of the first sliding block, a groove is provided on the limiting ring, and a second sliding rod is slidably connected inside the limiting ring.

[0008] Furthermore, a placement ring is fixedly connected to the top of the second slide rod, and the shape of the placement ring matches the shape of the groove. The end of the second slide rod away from the placement ring passes through the bottom of the limiting ring and extends. This arrangement is to accommodate the placement ring through the groove so that the pipeline can contact the inside of the limiting ring.

[0009] Furthermore, the end of the second sliding rod away from the placing ring is fixedly connected to a pressure rod, and the pressure rod is fixedly connected to a first spring at the central axis on the side close to the second sliding rod. The top of the first spring is fixedly connected to the bottom of the first sliding block, and the end of the second sliding rod close to the pressure rod is located on the inner side of the first spring. The pressure rod is driven to move by the second sliding rod, and the pressure rod drives the bottom end of the pull rod to move, thereby changing the position of the top end of the pull rod.

[0010] Furthermore, the pressure rod is rotatably connected to two pull rods on one side close to the placement ring, the front and rear ends of the limiting ring are fixedly connected to sliding rails, the two sliding rails are fixedly connected to a third sliding rod, the outer walls of the two third sliding rods are slidably connected to a second slider, the outer wall of the second slider is in contact with the inner wall of the sliding rail, and the bottom of the second slider is rotatably connected to the top of the pull rod. This arrangement is to limit the second slider by the sliding rail to prevent the second slider from rotating.

[0011] Furthermore, the two second sliders are rotatably connected to a fixed rod at one end away from the pull rod, the two fixed rods are rotatably connected to a push rod at one end away from the second slider, the two push rods are fixedly connected to a clamping ring at one side close to each other, and the bottoms of the two clamping rings are rotatably connected to the top of the limit ring. This arrangement is to drive the bottom end of the fixed rod to move by moving the second slider, thereby changing the position of the top end of the fixed rod.

[0012] Furthermore, a self-locking mechanism is provided on the clamping ring, and the self-locking mechanism includes a locking rod fixedly connected to the rear end of the front clamping ring, a limiting groove is provided on the rear clamping ring, and the limiting rod is sleeved inside the rear clamping ring, and the ends of the limiting rods close to each other are located inside the limiting groove, and the part of the limiting rod located inside the limiting groove is an inclined surface. This arrangement is to enable the limiting rod to move when the locking rod contacts the inclined surface on the top of the limiting rod.

[0013] Furthermore, one end of the limit rod away from the limit groove passes through the side wall of the clamping ring and extends, and a second spring is fixedly connected to the side of the clamping ring away from each other, the limit rod is located on the inner side of the second spring, and a pull ring is fixedly connected to the side of the second spring away from the clamping ring, and the side of the pull ring close to the second spring is fixedly connected to the end of the limit rod away from the limit groove, and the diameter of the limit rod is smaller than the diameter of the side of the pull ring close to the second spring. This arrangement is intended to stretch the second spring when the limit rod moves, and the elastic force of the second spring can reset the limit rod.

[0014] The utility model has the following beneficial effects:

[0015] The utility model starts the servo motor clockwise, and the operation of the servo motor drives the threaded rod to rotate. Since the ball slider is connected to the left and right ends of the connecting rod, the connecting rod prevents the ball slider from rotating. Therefore, when the threaded rod rotates, the ball slider moves upward, and the ball slider drives the bottom end of the connecting rod to move upward, and the top end of the connecting rod pushes the first slider to move away from each other, and the first slider drives the clamping mechanism to move. Conversely, starting the servo motor counterclockwise will make the clamping mechanisms approach each other, so that the distance between the clamping mechanisms can be adjusted according to the damaged length of the pipeline or the thickness of the pipeline interface.

[0016] The utility model drives the adjusting mechanism and the clamping mechanism to move upward through the operation of the electric hydraulic rod. During the rising process of the clamping mechanism, the placing ring contacts the pipeline. When the clamping mechanism continues to rise, the pipeline will press the placing ring downward, and the placing ring pushes the pressure rod to descend. The descent of the pressure rod will stretch the first spring, and at the same time, the pressure rod will pull the bottom end of the pull rod to descend. The descent of the bottom end of the pressure rod will pull the second slide block toward the limiting ring, and the second slide block will drive the bottom end of the fixed rod to approach the limiting ring. At this time, the top end of the fixed rod will rise, and during the rising process of the fixed rod, the angle between the fixed rod and the push rod will change, so that the fixed rod pushes the clamping ring to rotate around the connection position with the groove, so that the clamping rings are close to each other, and when the placing ring is located in the groove, the front and rear clamping rings are just in a closed state, so that the pipeline is clamped and positioned.

[0017] When the locking rod is moved below the limit rod, the elastic force of the second spring pulls the pull ring toward the limit groove, and the pull ring drives the limit rod to move, so that the limit rod is reset. At this time, the bottom of the limit rod blocks the locking rod, so as to prevent the clamping ring from opening during maintenance.

[0018] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the top structure of the new placement plate of the present utility model;

[0022] Figure 3 This is a schematic diagram of the structure of the adjustment mechanism of the utility model;

[0023] Figure 4 This is a schematic diagram of the structure of the clamping mechanism of the utility model;

[0024] Figure 5 This is a schematic diagram of the structure of the self-locking mechanism of the utility model;

[0025] Figure 6 For this utility model Figure 5 Schematic diagram of the enlarged structure of part A in the middle.

[0026] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0027] In the figure: 1. universal wheel; 11. mounting plate; 12. electric hydraulic rod; 13. telescopic rod; 2. adjustment mechanism; 201. placement plate; 202. fixing frame; 203. first slide bar; 204. first slider; 205. fixing plate; 206. servo motor; 207. threaded rod; 208. ball slider; 209. connecting rod; 3. clamping mechanism; 301. limit ring; 302. groove; 303. second slide bar; 304. placement ring; 305. pressure rod; 306. first spring; 307. pull rod; 308. slide rail; 309. third slide bar; 310. second slider; 311. fixing rod; 312. push rod; 313. clamping ring; 4. self-locking mechanism; 401. locking rod; 402. limit groove; 403. limit rod; 404. second spring; 405. pull ring. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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.

[0029] See also Figure 1 - Figure 6 As shown, a positioning fixture for maintenance of hydropower equipment includes a universal wheel 1, a mounting plate 11 is fixedly connected to the top of the universal wheel 1, an electric hydraulic rod 12 is fixedly connected to the middle axis of the mounting plate 11 away from the universal wheel 1, and a plurality of telescopic rods 13 are fixedly connected to the side of the mounting plate 11 away from the universal wheel 1, and further includes:

[0030] The adjusting mechanism 2 includes a placing plate 201 fixedly connected to the output end of the electric hydraulic rod 12, the bottom of the placing plate 201 is fixedly connected to the top of the telescopic rod 13, the side of the placing plate 201 away from the electric hydraulic rod 12 is fixedly connected to two fixing frames 202, the side of the two fixing frames 202 close to each other is fixedly connected to two first sliding bars 203, the outer wall of the first sliding bar 203 is slidably connected to two first sliding blocks 204, and the central axis of the first sliding bar 203 is fixedly connected to a fixing plate 205;

[0031] Among them, a servo motor 206 is fixedly connected to the central axis of the side of the placement plate 201 away from the electric hydraulic rod 12, and a threaded rod 207 is fixedly connected to the output end of the servo motor 206. The top of the threaded rod 207 is rotatably connected to the bottom of the fixed plate 205, and the outer wall of the threaded rod 207 is threadedly connected to a ball slider 208. The left and right ends of the ball slider 208 are both rotatably connected to connecting rods 209, and the tops of the two connecting rods 209 are both rotatably connected to the side of the first slider 204 that is close to each other.

[0032] A clamping mechanism 3 is provided on the top of the two first sliders 204 . The clamping mechanism 3 includes a limit ring 301 fixedly connected to the top of the first slider 204 . A groove 302 is provided on the limit ring 301 . A second slide rod 303 is slidably connected inside the limit ring 301 .

[0033] A placement ring 304 is fixedly connected to the top of the second slide bar 303 . The shape of the placement ring 304 matches the shape of the groove 302 . One end of the second slide bar 303 away from the placement ring 304 passes through the bottom of the limiting ring 301 and extends.

[0034] One end of the second slide bar 303 away from the placement ring 304 is fixedly connected to a pressure rod 305, and the pressure rod 305 is fixedly connected to a first spring 306 at the central axis of one side close to the second slide bar 303. The top of the first spring 306 is fixedly connected to the bottom of the first slider 204, and the end of the second slide bar 303 close to the pressure rod 305 is located on the inner side of the first spring 306.

[0035] The pressure rod 305 is rotatably connected to one side of the placement ring 304 with two pull rods 307. The front and rear ends of the limiting ring 301 are fixedly connected to the sliding rails 308. The insides of the two sliding rails 308 are fixedly connected with third sliding rods 309. The outer walls of the two third sliding rods 309 are slidably connected with second sliders 310. The outer walls of the second sliders 310 are in contact with the inner walls of the sliding rails 308, and the bottom of the second slider 310 is rotatably connected to the top of the pull rod 307.

[0036] The two second sliders 310 are rotatably connected to the fixed rod 311 on one side away from the pull rod 307, and the two fixed rods 311 are rotatably connected to the push rod 312 on one end away from the second slider 310. The two push rods 312 are fixedly connected to the clamping ring 313 on the side close to each other, and the bottoms of the two clamping rings 313 are rotatably connected to the top of the limit ring 301.

[0037] A self-locking mechanism 4 is provided on the clamping ring 313, and the self-locking mechanism 4 includes a locking rod 401 fixedly connected to the rear end of the front clamping ring 313, a limiting groove 402 is provided on the rear clamping ring 313, and a limiting rod 403 is sleeved inside the rear clamping ring 313, and the ends of the limiting rods 403 that are close to each other are located inside the limiting groove 402, and the part of the limiting rod 403 located inside the limiting groove 402 is an inclined surface.

[0038] One end of the limiting rod 403 away from the limiting groove 402 passes through the side wall of the clamping ring 313 and extends, and the side of the clamping ring 313 away from each other is fixedly connected with the second spring 404, the limiting rod 403 is located on the inner side of the second spring 404, and the side of the second spring 404 away from the clamping ring 313 is fixedly connected with a pull ring 405, and the side of the pull ring 405 close to the second spring 404 is fixedly connected to the end of the limiting rod 403 away from the limiting groove 402, and the diameter of the limiting rod 403 is smaller than the diameter of the side of the pull ring 405 close to the second spring 404.

[0039] When in use, the device is placed directly below the pipeline, and the servo motor 206 is started clockwise. The operation of the servo motor 206 will drive the threaded rod 207 to rotate. Because the ball slider 208 is connected to the left and right ends of the connecting rod with connecting rods 209, the connecting rod 209 will prevent the ball slider 208 from rotating. Therefore, when the threaded rod 207 rotates, the ball slider 208 will move upward, and the ball slider 208 will drive the bottom end of the connecting rod 209 to move upward, and the top of the connecting rod 209 will push the first slider 204 to move away from each other, and the first slider 204 will drive the clamping mechanism 3 to move. Conversely, starting the servo motor 206 counterclockwise will bring the clamping mechanism 3 closer to each other, so that the damaged length of the pipeline or the thickness of the pipeline interface can be determined. When the distance between the clamping mechanisms 3 is adjusted, the electric hydraulic rod 12 is started, and the electric hydraulic rod 12 will push the adjusting mechanism 2 and the clamping mechanism 3 to move upward. The telescopic rod 13 can ensure the stability of the placement plate 201 device to prevent tilting. During the rising process of the clamping mechanism 3, the placement ring 304 contacts the pipeline. When the clamping mechanism 3 continues to rise, the pipeline will press down the placement ring 304, and the placement ring 304 will push the pressure rod 305 down. The descent of the pressure rod 305 will stretch the first spring 306. At the same time, the pressure rod 305 will pull the bottom end of the pull rod 307 down. The descent of the bottom end of the pressure rod 305 will pull the second slider 310 closer to the limit ring 301. The second slider 310 will drive the bottom end of the fixing rod 311 to move closer to the limit ring 301. At this time, the fixing rod 311 The top end will rise, and the angle between the fixing rod 311 and the push rod 312 will change during the rising process of the fixing rod 311, so that the fixing rod 311 pushes the clamping ring 313 to rotate around the connection position with the groove 302, so that the clamping rings 313 are close to each other. When the placing ring 304 is located in the groove 302, the front and rear clamping rings 313 are just in a closed state, so as to clamp and position the pipe. At the same time, during the closing process of the clamping ring 313, the locking rod 401 will enter the limiting groove 402, and then will contact the limiting rod 403. Because the top of the limiting rod 403 located in the limiting groove 402 is an inclined surface, the locking rod 401 will push the limiting rod 403 to move outward, and the limiting rod 403 will push the pull ring 405 to move outward. The movement of the pull ring 405 will stretch the second spring 404. When the locking rod 401 moves below the limit rod 403, the elastic force of the second spring 404 will pull the pull ring 405 to move in the direction of the limit groove 402. The pull ring 405 drives the limit rod 403 to move, so that the limit rod 403 is reset. At this time, the bottom of the limit rod 403 will block the locking rod 401, which can prevent the clamping ring 313 from opening during the maintenance process. Pull the pull ring 405 to make the limit rod 403 disengage from the limit groove 402, and then start the electric hydraulic rod 12 to retract. The electric hydraulic rod 12 causes the adjustment mechanism 2 and the clamping mechanism 3 to descend. When the clamping mechanism 3 descends, the first spring 306 will contract. Similarly, the clamping ring 313 will gradually be opened during the contraction of the first spring 306, which is more convenient.

[0040] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A positioning fixture for maintenance of hydroelectric power generation equipment, comprising a universal wheel (1), a mounting plate (11) fixedly connected to the top of the universal wheel (1), an electric hydraulic rod (12) fixedly connected to the middle axis of the mounting plate (11) away from the universal wheel (1), and a plurality of telescopic rods (13) fixedly connected to the side of the mounting plate (11) away from the universal wheel (1), characterized in that: Also includes: An adjustment mechanism (2), the adjustment mechanism (2) comprising a placement plate (201) fixedly connected to the output end of the electric hydraulic rod (12), the bottom of the placement plate (201) being fixedly connected to the top of the telescopic rod (13), the side of the placement plate (201) away from the electric hydraulic rod (12) being fixedly connected to two fixing frames (202), the sides of the two fixing frames (202) being fixedly connected to two first sliding bars (203), the outer wall of the first sliding bar (203) being slidably connected to two first sliding blocks (204), and the center axis of the first sliding bar (203) being fixedly connected to a fixing plate (205); A servo motor (206) is fixedly connected to the center axis of a side of the placement plate (201) away from the electric hydraulic rod (12); a threaded rod (207) is fixedly connected to the output end of the servo motor (206); the top end of the threaded rod (207) is rotatably connected to the bottom of the fixed plate (205); the outer wall of the threaded rod (207) is threadably connected to a ball slider (208); the left and right ends of the ball slider (208) are both rotatably connected to connecting rods (209); and the top ends of the two connecting rods (209) are both rotatably connected to the side of the first slider (204) that is close to each other.

2. A positioning fixture for maintenance of hydropower equipment according to claim 1, characterized in that: A clamping mechanism (3) is provided on the top of each of the two first sliders (204), the clamping mechanism (3) comprising a limiting ring (301) fixedly connected to the top of the first slider (204), a groove (302) being provided on the limiting ring (301), and a second sliding rod (303) being slidably connected inside the limiting ring (301).

3. A positioning fixture for maintenance of hydropower equipment according to claim 2, characterized in that: A placement ring (304) is fixedly connected to the top of the second slide bar (303), the shape of the placement ring (304) matches the shape of the groove (302), and one end of the second slide bar (303) away from the placement ring (304) passes through the bottom of the limiting ring (301) and extends.

4. A positioning fixture for maintenance of hydropower equipment according to claim 2, characterized in that: One end of the second sliding rod (303) away from the placement ring (304) is fixedly connected to a pressure rod (305), and the pressure rod (305) is fixedly connected to a first spring (306) at the center axis of a side close to the second sliding rod (303). The top of the first spring (306) is fixedly connected to the bottom of the first sliding block (204), and one end of the second sliding rod (303) close to the pressure rod (305) is located on the inner side of the first spring (306).

5. A positioning fixture for maintenance of hydropower equipment according to claim 4, characterized in that: The pressure rod (305) is rotatably connected to two pull rods (307) on one side close to the placement ring (304); the front and rear ends of the limiting ring (301) are fixedly connected to slide rails (308); the interiors of the two slide rails (308) are fixedly connected to third slide rods (309); the outer walls of the two third slide rods (309) are slidably connected to second sliders (310); the outer walls of the second sliders (310) are in contact with the inner walls of the slide rails (308); and the bottom of the second slider (310) is rotatably connected to the top of the pull rod (307).

6. A positioning fixture for maintenance of hydropower equipment according to claim 5, characterized in that: The two second sliders (310) are rotatably connected to a fixed rod (311) at one end away from the pull rod (307), and the two fixed rods (311) are rotatably connected to a push rod (312) at one end away from the second sliders (310). The two push rods (312) are fixedly connected to a clamping ring (313) at one end close to each other, and the bottoms of the two clamping rings (313) are rotatably connected to the top of the limit ring (301).

7. A positioning fixture for maintenance of hydropower equipment according to claim 6, characterized in that: The clamping ring (313) is provided with a self-locking mechanism (4), the self-locking mechanism (4) comprising a locking rod (401) fixedly connected to the rear end of the front clamping ring (313), a limiting groove (402) being provided on the rear clamping ring (313), the limiting rod (403) being sleeved inside the rear clamping ring (313), the ends of the limiting rods (403) being close to each other being located inside the limiting groove (402), and the portion of the limiting rods (403) located inside the limiting groove (402) being an inclined surface.

8. A positioning fixture for maintenance of hydropower equipment according to claim 7, characterized in that: One end of the limiting rod (403) away from the limiting groove (402) penetrates through the side wall of the clamping ring (313) and extends; a second spring (404) is fixedly connected to the side of the clamping ring (313) away from each other; the limiting rod (403) is located on the inner side of the second spring (404); a pull ring (405) is fixedly connected to the side of the second spring (404) away from the clamping ring (313); a side of the pull ring (405) close to the second spring (404) is fixedly connected to an end of the limiting rod (403) away from the limiting groove (402); and a diameter of the limiting rod (403) is smaller than a diameter of a side of the pull ring (405) close to the second spring (404).

Images