Measuring device for bolt stretching amount of pumped storage unit

Abstract

The utility model provides a pumped storage unit bolt stretching amount measuring device, which comprises a pumped storage unit, a water turbine shaft and a runner crown of the pumped storage unit are connected through a bolt and a nut, and the top of the bolt is provided with a measuring hole; the telescopic locking piece of the locking assembly is connected with the first bolt hole in the water turbine shaft through the first combining sleeve, so that installation of the telescopic locking piece is achieved, and stable operation of the telescopic locking piece is guaranteed. The wrench is arranged on the nut in a sleeving mode through the second combining sleeve, when the telescopic locking piece jacks the wrench to rotate, the second combining sleeve drives the nut to rotate, and the effect that the wrench locks the nut is achieved. In the process that the wrench locks the nut, the bolt deforms and drives the measuring rod of the measuring tool to jack the measuring end of the measuring meter, so that the tensile force of the bolt can be accurately measured, whether the bolt is locked or not is judged according to the tensile force, and normal and stable operation of the pumped storage unit is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of pumped-storage units, and particularly relates to a carbon emission monitoring system, method, electronic device and storage medium. Background Art

[0002] At present, domestic operating pumped-storage units have successively entered the major overhaul stage. During the major overhaul, some important bolts of the pumped-storage units are judged whether they are locked and tightened in place by the elongation. Whether the measurement of the elongation of the bolts is accurate and reliable is related to the overhaul quality and safety, and is an important inspection point in the overhaul process, which is crucial during the entire overhaul process of the unit. At present, there is a lack of bolt tension measuring tools for pumped-storage units, and it is impossible to accurately measure the elongation of the bolts. Content of the Utility Model

[0003] In view of this, the purpose of the present utility model is to provide a measuring device for the elongation of bolts of a pumped-storage unit to solve the problem that the elongation of bolts of a pumped-storage unit cannot be accurately measured in the background art.

[0004] Based on the above purpose, the present utility model provides a measuring device for the elongation of bolts of a pumped-storage unit, including:

[0005] A pumped-storage unit, including a turbine shaft and a runner crown. A plurality of first bolt holes are arranged in an array on the turbine shaft, and second bolt holes corresponding to the first bolt holes are arranged on the runner crown; bolts penetrate through the first bolt holes and the second bolt holes, and nuts are arranged at the tops of the bolts; measuring holes are arranged at the tops of the bolts;

[0006] A locking assembly, including a telescopic locking member and a wrench. The telescopic locking member is connected to the first bolt hole through a first coupling sleeve, the wrench is sleeved on the nut through a second coupling sleeve, and the telescopic end of the telescopic locking member abuts against the side wall of the wrench;

[0007] A measuring tool, including an installation rod, a measuring gauge and a measuring rod which are connected. The installation rod is arranged in the measuring hole, the measuring rod abuts against the top of the bolt where the nut is located, and when the nut locks the bolt, the measuring rod jacks up the measuring end of the measuring gauge.

[0008] Optionally, the installation rod and the measuring rod are arranged in parallel, and the length of the installation rod is greater than the length of the measuring rod.

[0009] Optionally, an installation groove is arranged at the end of the installation rod, an installation frame matched with the installation groove is vertically arranged on the rear wall of the measuring gauge, the installation frame and the installation rod are vertically installed, the measuring end of the measuring gauge faces the length direction of the installation rod, and the end of the measuring rod abuts against the measuring end.

[0010] Optionally, a first sleeve is provided at the bottom of the first clamping sleeve. The side wall of the first sleeve abuts against the inner wall of the first bolt hole. The inner diameter of the first sleeve is larger than the diameter of the nut. A first protrusion for cooperating with the telescopic locking member is provided at the top of the first clamping sleeve.

[0011] Optionally, the telescopic locking member includes a base and a cylinder. The cylinder is provided on the base. The rod end of the cylinder faces the wrench. A first socket hole for cooperating with the first protrusion of the first clamping sleeve is provided on the base. The first socket hole of the base is sleeved on the first protrusion of the first clamping sleeve.

[0012] Optionally, a slot for installing the cylinder is provided on the base. A stop block and a baffle are arranged around the slot on the base. The stop block is arranged in the width direction of the slot and abuts against the bottom of the cylinder. The baffle is arranged in the length direction of the slot and abuts against the side wall of the cylinder.

[0013] Optionally, a limiting plate is provided at the bottom of the base. The side wall of the limiting plate abuts against the side wall of the water turbine shaft.

[0014] Optionally, a second sleeve is provided at the bottom of the second clamping sleeve. The inner wall shape of the second sleeve matches the shape of the nut, and the outer wall of the second sleeve abuts against the inner wall of the first bolt hole. A second protrusion for cooperating with the wrench is provided at the top of the second clamping sleeve.

[0015] Optionally, a second socket hole for cooperating with the second protrusion is provided on the wrench. The wrench is sleeved on the second clamping sleeve.

[0016] Optionally, a push plate for abutting against the cylinder of the telescopic locking member is provided on the side wall of the wrench.

[0017] As can be seen from the above, a measuring device for the bolt elongation of a pumped-storage unit provided by the present utility model includes a pumped-storage unit, which includes a turbine shaft and an upper crown of a runner. The turbine shaft and the upper crown of the runner are connected by bolts and nuts, and a measuring hole is provided at the top of the bolt; a locking assembly, including a telescopic locking member and a wrench. The telescopic locking member is connected to the first bolt hole on the turbine shaft through a first coupling sleeve to realize the installation of the telescopic locking member. The first coupling sleeve is in interference fit with the first bolt hole. During the telescopic process of the telescopic locking member, the telescopic locking member can displace under the action of the first coupling sleeve and the first bolt hole, ensuring the stable operation of the telescopic locking member. The wrench is sleeved on the nut through a second coupling sleeve. When the telescopic locking member pushes the wrench to rotate, the second coupling sleeve drives the nut to rotate, achieving the effect of the wrench locking the nut. The mounting rod of the measuring tool is installed in the measuring hole of the bolt, and one end of the measuring rod abuts against the measuring end of the measuring gauge, and the other end abuts against the top of the bolt. During the process of the wrench locking the nut, the bolt deforms, driving the measuring rod to lift the measuring end of the measuring gauge, so that the tensile force of the bolt can be accurately measured, and it can be judged whether the bolt is locked according to the tensile force, ensuring the normal and stable operation of the pumped-storage unit. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the present utility model or related technologies, the following will briefly introduce the drawings required for use in the description of the embodiments or related technologies. Obviously, the drawings in the following description are only the embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0019] Figure 1 It is a schematic installation structure diagram of a measuring device for the bolt elongation of a pumped-storage unit according to an embodiment of the present utility model;

[0020] Figure 2 It is an exploded structure schematic diagram of the installation of a measuring device for the bolt elongation of a pumped-storage unit according to an embodiment of the present utility model;

[0021] Figure 3 It is a schematic connection structure diagram of the measuring tool, bolt and nut according to an embodiment of the present utility model;

[0022] Figure 4 It is a schematic diagram of the structure of the measuring tool according to an embodiment of the present utility model;

[0023] Figure 5 It is a schematic diagram of the structure of the telescopic locking member according to an embodiment of the present utility model;

[0024] Figure 6 It is a schematic diagram of the structure of the wrench according to an embodiment of the present utility model.

[0025] Reference numerals:

[0026] 1. Pumped-storage unit; 11. Turbine shaft; 12. Upper crown of runner; 2. Bolt; 21. Measuring hole; 3. Nut; 4. Locking assembly; 41. Telescopic locking member; 42. Wrench; 43. Second mating sleeve; 44. First mating sleeve; 40. Cylinder; 5. Measuring tool; 111. First bolt hole; 112. Second bolt hole; 51. Measuring gauge; 52. Mounting rod; 53. Measuring rod; 411. Base; 412. First sleeve hole; 413. Stopper; 414. Baffle; 415. Groove; 416. Limiting plate; 421. Second sleeve hole; 422. Pusher plate; 423. Lifting lug; 510. Measuring end; 511. Mounting bracket; 522. Mounting groove; 441. First sleeve; 442. First protrusion; 431. Second sleeve; 432. Second protrusion. Detailed implementation manners

[0027] In order to make the objectives, technical solutions and advantages of the present utility model clearer and more understandable, the present utility model will be further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings.

[0028] It should be noted that unless otherwise defined, the technical terms or scientific terms used in the embodiments of the present utility model should have the ordinary meanings understood by those with ordinary skills in the field to which the present utility model belongs. The "first", "second" and similar terms used in the embodiments of the present utility model do not indicate any order, quantity or importance, but are only used to distinguish different components. The terms such as "including" or "comprising" mean that the elements or objects appearing before this word cover the elements or objects listed after this word and their equivalents, without excluding other elements or objects. The terms such as "connected" or "coupled" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. The terms such as "upper", "lower", "left" and "right" are only used to represent relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0029] The embodiments of the present utility model will be described in detail below with reference to the accompanying drawings.

[0030] Referring to Figure 1 , the present utility model provides a measuring device for the tensile amount of bolts 2 of a pumped-storage unit 1, comprising:

[0031] The pumped-storage unit 1 includes a turbine shaft 11 and a runner crown 12. A plurality of first bolt holes 111 are arranged in an array on the turbine shaft 11, and second bolt holes 112 corresponding to the first bolt holes 111 are provided on the runner crown 12. Bolts 2 penetrate through the first bolt holes 111 and the second bolt holes 112, and nuts 3 are provided at the tops of the bolts 2. A measurement hole 21 is provided at the top of the bolt 2.

[0032] The locking assembly 4 includes a telescopic locking member 41 and a wrench 42. The telescopic locking member 41 is connected to the first bolt hole 111 through a first coupling sleeve 44, and the wrench 42 is sleeved on the nut 3 through a second coupling sleeve 43. The telescopic end of the telescopic locking member 41 abuts against the side wall of the wrench 42.

[0033] The measuring tool 5 includes a mounting rod 52, a measuring gauge 51 and a measuring rod 53 which are connected. The mounting rod 52 is arranged in the measurement hole 21, and the measuring rod 53 abuts against the top of the bolt 2. When the nut 3 is tightened onto the bolt 2, the measuring rod 53 jacks up the measuring end 510 of the measuring gauge 51.

[0034] Specifically, the pumped-storage unit 1 includes a turbine shaft 11 and a runner crown 12. The turbine shaft 11 and the runner crown 12 are connected by bolts 2 and nuts 3, and a measurement hole 21 is provided at the top of the bolt 2. The locking assembly 4 includes a telescopic locking member 41 and a wrench 42. The telescopic locking member 41 is connected to the first bolt hole 111 on the turbine shaft 11 through a first coupling sleeve 44 to realize the installation of the telescopic locking member 41. The first coupling sleeve 44 is in interference fit with the first bolt hole 111. During the telescopic process of the telescopic locking member 41, the telescopic locking member 41 can generate displacement under the action of the first coupling sleeve 44 and the first bolt hole 111 to ensure the stable operation of the telescopic locking member 41. The wrench 42 is sleeved on the nut 3 through a second coupling sleeve 43. When the telescopic locking member 41 pushes the wrench 42 to rotate, the second coupling sleeve 43 drives the nut 3 to rotate, realizing the effect of the wrench 42 tightening the nut 3. The mounting rod 52 of the measuring tool 5 is installed in the measurement hole 21 of the bolt 2, and one end of the measuring rod 53 abuts against the measuring end 510 of the measuring gauge 51, and the other end abuts against the top of the bolt 2. During the process of the wrench 42 tightening the nut 3, the bolt 2 deforms, which will drive the measuring rod 53 to jack up the measuring end 510 of the measuring gauge 51, so that the tensile force of the bolt 2 can be accurately measured, and it can be judged whether the bolt 2 is tightened according to the tensile force, ensuring the normal and stable operation of the pumped-storage unit 1.

[0035] The bolt 2 in the present utility model can be a conventional bolt 2 (i.e., a bolt 2 with an edge), or a double-headed bolt 2. Exemplarily, a hexagonal groove is provided at the bottom of the second bolt hole 112 to limit the rotation of the bolt 2 when tightening the nut 3, or other tools can be used to control the rotation of the bolt 2, which can be specifically selected according to the actual situation and is not specifically limited in the present utility model. If a double-headed bolt 2 is used, the nut 3 at the end of the bolt 2 located in the second bolt hole 112 can be tightened first, and the nut 3 at this end can be placed in the hexagonal groove to limit the position of this nut 3. When tightening the upper nut 3, it can be ensured that the bolt 2 does not rotate.

[0036] In some embodiments, such as Figure 1 , Figure 3 and Figure 4 shown, the mounting rod 52 and the measuring rod 53 are arranged in parallel, and the length of the mounting rod 52 is greater than the length of the measuring rod 53.

[0037] Specifically, the measuring table 51 of the measuring tool 5 uses an existing tensile measuring instrument, which will not be introduced in detail in the present utility model. Since a measuring hole 21 is provided at the top of the bolt 2, the mounting rod 52 is arranged in the measuring hole 21, and the measuring rod 53 is connected to the measuring end 510 of the measuring table 51. Therefore, to measure the tensile amount of the bolt 2, the measuring rod 53 needs to abut against the top of the bolt 2. Therefore, the measuring rod 53 and the mounting rod 52 are arranged in parallel, and the length of the mounting rod 52 should be greater than the length of the measuring rod 53 so that the mounting rod 52 can be located in the measuring hole 21 and the measuring rod 53 can abut against the top of the bolt 2, so as to accurately measure the tensile force of the bolt 2.

[0038] In some embodiments, such as Figure 4 shown, an installation groove 522 is provided at the end of the mounting rod 52, and a mounting bracket 511 that cooperates with the installation groove 522 is vertically provided on the rear wall of the measuring table 51. The mounting bracket 511 and the mounting rod 52 are perpendicularly installed, the measuring end 510 of the measuring table 51 faces the length direction of the mounting rod 52, and the end of the measuring rod 53 abuts against the measuring end 510.

[0039] Specifically, the installation groove 522 at the top of the installation rod 52 can be a round hole or a through groove, and no specific limitation is made in the present utility model. Exemplarily, a through groove is adopted in the present utility model. An installation frame 511 that cooperates with the installation groove 522 is vertically provided on the rear wall of the measuring instrument 51. After the installation frame 511 penetrates through the installation groove 522, it is connected with a locking handle. The locking handle is threadedly connected to the installation frame 511. When the locking handle is locked with the installation frame 511, the locking handle abuts against the side wall of the installation rod 52 to ensure the stable installation of the measuring instrument 51. The installation frame 511 is vertically installed with the installation rod 52, which can make the measuring end 510 of the measuring instrument 51 face downward, facilitating the connection between the measuring end 510 and the measuring rod 53, and can ensure that the measuring rod 53 is parallel to the installation rod 52. Only in this way can the installation rod 52 be located in the measuring hole 21, and the measuring rod 53 abuts against the top of the bolt 2, so as to accurately measure the tensile force of the bolt 2.

[0040] In some embodiments, as Figure 2 shown, a first sleeve 441 is provided at the bottom of the first clamping sleeve 44. The side wall of the first sleeve 441 abuts against the inner wall of the first bolt hole 111. The inner diameter of the first sleeve 441 is larger than the diameter of the nut 3. A first protrusion 442 that cooperates with the telescopic locking member 41 is provided at the top of the first clamping sleeve 44.

[0041] Specifically, the first sleeve 441 at the bottom of the first clamping sleeve 44 is inserted into the first bolt hole 111, that is, the side wall of the first sleeve 441 abuts against the inner wall of the first bolt hole 111, and the inner diameter of the first sleeve 441 is larger than the diameter of the nut 3. In this way, it can be ensured that the first clamping sleeve 44 will not affect the nut 3 during the rotation process. For example, when the first clamping sleeve 44 is sleeved in the first bolt hole 111 where the nut 3 has been locked, if the telescopic locking member 41 locks other nuts 3, it will cause the first clamping sleeve 44 to rotate. To prevent the first clamping sleeve 44 from driving the nut 3 to loosen, the inner diameter of the first sleeve 441 at the bottom of the first clamping sleeve 44 is set to be larger than the diameter of the nut 3 to ensure the smooth progress of the work. A first protrusion 442 that cooperates with the telescopic locking member 41 is provided at the top of the first clamping sleeve 44, and the telescopic locking member 41 is sleeved on the first protrusion 442, which can limit the telescopic locking member 41 on the water turbine shaft 11 through the first clamping sleeve 44. When the telescopic locking member 41 pushes the wrench 42 to rotate the nut 3, it is not easy to generate a large displacement, ensuring the stable locking of the nut 3 and the smooth progress of the work.

[0042] In some embodiments, as Figure 1 、 Figure 2 and Figure 5As shown, the telescopic locking member 41 includes a base 411 and a cylinder 40. The cylinder 40 is disposed on the base 411, and the rod end of the cylinder 40 faces the wrench 42. The base 411 is provided with a first socket hole 412 that mates with the first protrusion 442 of the first engaging sleeve 44, and the first socket hole 412 of the base 411 is sleeved on the first protrusion 442 of the first engaging sleeve 44.

[0043] Specifically, the base 411 is provided with a first socket hole 412, and the first socket hole 412 is sleeved on the first protrusion 442 of the first engaging sleeve 44. The first engaging sleeve 44 is inserted into the first bolt hole 111, and then the base 411 is sleeved on the first protrusion 442 of the first engaging sleeve 44. It is equivalent to that the base 411 is installed on the turbine shaft 11 through the first engaging sleeve 44. The cylinder 40 is fixedly installed on the base 411. The wrench 42 can be pushed to rotate by the cylinder 40, and the wrench 42 locks the nut 3. At the same time, the measuring tool 5 measures the tensile amount of the bolt 2.

[0044] In some embodiments, as Figure 1 , Figure 2 and Figure 5 shown, the base 411 is provided with a slot 415 for installing the cylinder 40. A stop block 413 and a baffle 414 are arranged around the slot 415 on the base 411. The stop block 413 is arranged in the width direction of the slot 415 and abuts against the bottom of the cylinder 40, and the baffle 414 is arranged in the length direction of the slot 415 and abuts against the side wall of the cylinder 40.

[0045] Specifically, the slot 415 on the base 411 can be a through slot or a groove. A part of the cylinder 40 is located in the slot 415. A stop block 413 and a baffle 414 are arranged around the slot 415. The stop block 413 is arranged in the width direction of the slot 415 and abuts against the bottom of the cylinder 40, which can limit the bottom of the cylinder 40. When the cylinder 40 pushes the wrench 42, the cylinder 40 will move in the axial direction, so the stop block 413 limits the cylinder 40. A baffle 414 is arranged in the length direction of the slot 415. The baffle 414 can be arranged on both sides of the slot 415. The baffle 414 on the outer side (i.e., the side away from the turbine shaft 11) is higher than the baffle 414 on the inner side. Since when the cylinder 40 pushes the wrench 42, the wrench 42 rotates in the opposite direction of the cylinder 40 and transmits the force in the direction away from the turbine shaft 11 of the cylinder 40, the cylinder 40 will tilt outward. The high baffle 414 can well limit the cylinder 40 and ensure the stable operation of the telescopic locking member 41.

[0046] In some embodiments, as Figure 1 , Figure 2 and Figure 5As shown, a limiting plate 416 is provided at the bottom of the base 411, and the side wall of the limiting plate 416 abuts against the side wall of the water turbine shaft 11.

[0047] Specifically, a limiting plate 416 is provided at the bottom of the base 411, and the limiting plate 416 abuts against the side wall of the water turbine shaft 11. The limiting plate 416 is a straight plate, which is equivalent to the limiting plate 416 being tangent to the side wall of the water turbine shaft 11. When the telescopic locking member 41 pushes the wrench 42, the base 411 needs to rotate. The limiting plate 416 can rotate on the side wall of the water turbine shaft 11 when following the rotation of the first mating sleeve 44 (the rotation angle is limited and can be determined according to the rotation angle of the wrench 42), which can avoid the problem that when the end of the cylinder 40 abuts against the wrench 42 and the position of the cylinder 40 remains unchanged, the cylinder 40 is damaged. A plurality of lifting lugs 423 are provided on the base 411, which can realize the disassembly of the base 411.

[0048] In some embodiments, as Figure 2 shown, a second sleeve 431 is provided at the bottom of the second mating sleeve 43. The inner wall shape of the second sleeve 431 is matched with the shape of the nut 3, and the outer wall of the second sleeve 431 abuts against the inner wall of the first bolt hole 111. A second protrusion 432 matched with the wrench 42 is provided at the top of the second mating sleeve 43.

[0049] Specifically, a second sleeve 431 is provided at the bottom of the second mating sleeve 43. The shape inside the second sleeve 431 is a shape matched with the nut 3 (for example, a hexagonal shape). The outside of the second sleeve 431 is matched with the first bolt hole 111, and the outer wall of the second sleeve 431 abuts against the inner wall of the first bolt hole 111, which is equivalent to the second sleeve 431 being inserted into the first bolt hole 111 for locking the nut 3. A second protrusion 432 matched with the wrench 42 is provided at the top of the second mating sleeve 43. The second protrusion 432 can be hexagonal. A second socket 421 matched with the second protrusion 432 is provided on the wrench 42, and the second socket 421 is also hexagonal. The wrench 42 is sleeved with the second mating sleeve 43. In this way, when the wrench 42 rotates, the second mating sleeve 43 can be rotated, and the second mating sleeve 43 drives the nut 3 to rotate, so as to realize the locking of the bolt 2.

[0050] In some embodiments, as Figure 6 shown, a push plate 422 for abutting against the cylinder 40 of the telescopic locking member 41 is provided on the side wall of the wrench 42.

[0051] Specifically, a push plate 422 is provided on the side wall of the wrench 42 and abuts against the cylinder 40 of the telescopic locking member 41. When the telescopic locking member 41 extends, the cylinder 40 abuts against the push plate 422 of the wrench 42, and the end of the cylinder 40 abuts against the push plate 422. The base 411 can rotate under the interference fit between the first mating sleeve 44 and the first bolt hole 111, so as to stably push the wrench 42 to rotate. Since the bolt 2 is locked, a large-angle rotation is not required. The rotation angle of the wrench 42 is controlled according to the length of the cylinder 40 and the length of the push plate 422. A plurality of lifting lugs 423 are provided on the wrench 42. After reaching the rotation angle, if the locking degree of the bolt 2 still cannot meet the requirements, the wrench 42 can be lifted by the lifting lugs 423 on the wrench 42 and rotated by another angle to continue rotating the nut 3.

[0052] Further, the first bolt hole 111 can be wider at the top and narrower at the bottom, and the second bolt hole 112 can be narrower at the top and wider at the bottom. The specific structure will not be described in detail. It is only necessary to ensure that the nut 3 does not fall off.

[0053] The specific measurement process in this application is as follows:

[0054] Before locking the nut 3 and the bolt 2, the nut 3 and the bolt 2 are processed and locked by large equipment. Then, by a crane or manually, first place the first mating sleeve 44 and the second mating sleeve 43 in the positions to be installed (for example, insert the first mating sleeve 44 into one or two adjacent first bolt holes 111 of the bolt 2 to be locked, and insert the second mating sleeve 43 into the first bolt hole 111 of the bolt 2 to be locked, that is, sleeve the second mating sleeve 43 on the nut 3 to be locked). Then, lift the telescopic locking member 41 by the lifting lug 423 on the telescopic locking member 41, sleeve the first sleeve hole 412 of the telescopic locking member 41 on the first protrusion 442 of the first mating sleeve 44, lift the wrench 42 to the second mating sleeve 43 by the lifting lug 423 on the wrench 42, and sleeve the through second sleeve hole 421 of the wrench 42 on the second protrusion 432 of the second mating sleeve 43. At this time, the limiting plate 416 of the base 411 is tangent to the side wall of the turbine shaft 11, and insert the measuring tool 5 into the measuring hole 21 of the bolt 2. Control the cylinder 40 to push out to the push plate 422 of the wrench, and then continuously apply pressure to control the rotation of the wrench 42. The wrench 42 rotates the nut 3, and the bolt 2 deforms, so as to measure the tensile force of the bolt 2 and judge whether the bolt 2 is locked.

[0055] It should be noted that some embodiments of the present utility model have been described above. Other embodiments are within the scope of the appended claims. In some cases, the acts or steps recited in the claims may be performed in a different order than in the above embodiments and still achieve the desired results. Additionally, the processes depicted in the drawings do not necessarily require the particular order or sequential order shown to achieve the desired results. In certain embodiments, multitasking and parallel processing are also possible or may be advantageous.

[0056] Although the present utility model has been described in connection with specific embodiments thereof, many alternatives, modifications, and variations of these embodiments will be apparent to those of ordinary skill in the art based on the foregoing description. For example, other memory architectures may utilize the embodiments discussed.

[0057] Embodiments of the present utility model are intended to cover all such alternatives, modifications, and variations that fall within the broad scope of the appended claims. Accordingly, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the embodiments of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A device for measuring the tension of bolts of a pumped storage unit, characterized in that: include: A pumped storage unit (1) comprises a turbine shaft (11) and a runner crown (12), wherein a plurality of first bolt holes (111) are arranged in an array on the turbine shaft (11), and a second bolt hole (112) corresponding to the first bolt hole (111) is arranged on the runner crown (12); bolts (2) penetrate through the first bolt hole (111) and the second bolt hole (112), and a nut (3) is arranged on the top of the bolt (2); and a measuring hole (21) is arranged on the top of the bolt (2); A locking assembly (4), comprising a telescopic locking member (41) and a wrench (42), wherein the telescopic locking member (41) is connected to the first bolt hole (111) via a first sleeve (44), the wrench (42) is sleeved on the nut (3) via a second sleeve (43), and the telescopic end of the telescopic locking member (41) abuts against a side wall of the wrench (42); The measuring tool (5) comprises a mounting rod (52), a measuring gauge (51) and a measuring rod (53) which are connected to each other. The mounting rod (52) is arranged in the measuring hole (21). The measuring rod (53) abuts against the top of the bolt (2). When the nut (3) is tightened against the bolt (2), the measuring rod (53) lifts the measuring end (510) of the measuring gauge (51).

2. The device for measuring the bolt tension of a pumped storage unit according to claim 1, characterized in that: The installation rod (52) and the measuring rod (53) are arranged in parallel, and the length of the installation rod (52) is greater than the length of the measuring rod (53).

3. The device for measuring the bolt tension of a pumped storage unit according to claim 1, characterized in that: The end of the mounting rod (52) is provided with a mounting groove (522), and a mounting frame (511) matching with the mounting groove (522) is vertically provided on the rear wall of the measuring meter (51), and the mounting frame (511) and the mounting rod (52) are vertically installed, and the measuring end (510) of the measuring meter (51) faces the length direction of the mounting rod (52), and the end of the measuring rod (53) abuts against the measuring end (510).

4. The device for measuring the bolt tension of a pumped storage unit according to claim 1, characterized in that: A first sleeve (441) is provided at the bottom of the first handle sleeve (44), the side wall of the first sleeve (441) abuts against the inner wall of the first bolt hole (111), the inner diameter of the first sleeve (441) is larger than the diameter of the nut (3), and a first protrusion (442) cooperating with the telescopic locking member (41) is provided at the top of the first handle sleeve (44).

5. The device for measuring the bolt tension of a pumped storage unit according to claim 4, characterized in that: The telescopic locking member (41) comprises a base (411) and a cylinder (40); the cylinder (40) is arranged on the base (411); the cylinder rod end of the cylinder (40) faces the wrench (42); the base (411) is provided with a first set of holes (412) matched with a first protrusion (442) of the first handle sleeve (44); the first set of holes (412) of the base (411) is sleeved on the first protrusion (442) of the first handle sleeve (44).

6. The device for measuring the bolt tension of a pumped storage unit according to claim 5, characterized in that: The base (411) is provided with a slot (415) for mounting the cylinder (40), and the base (411) is provided with a stopper (413) and a baffle (414) around the slot (415); the stopper (413) is arranged in the width direction of the slot (415) and abuts against the bottom of the cylinder (40), and the baffle (414) is arranged in the length direction of the slot (415) and abuts against the side wall of the cylinder (40).

7. The device for measuring the bolt tension of a pumped storage unit according to claim 5, characterized in that: A limiting plate (416) is provided at the bottom of the base (411), and a side wall of the limiting plate (416) abuts against a side wall of the turbine shaft (11).

8. The device for measuring the bolt tension of a pumped storage unit according to claim 5, characterized in that: A second sleeve (431) is provided at the bottom of the second handle sleeve (43), the inner wall shape of the second sleeve (431) matches the shape of the nut (3), and the outer wall of the second sleeve (431) abuts against the inner wall of the first bolt hole (111), and a second protrusion (432) matching the wrench (42) is provided at the top of the second handle sleeve (43).

9. The device for measuring the bolt tension of a pumped storage unit according to claim 8, characterized in that: The wrench (42) is provided with a second hole (421) matched with the second protrusion (432), and the wrench (42) is sleeved with the second sleeve (43).

10. The device for measuring the bolt tension of a pumped storage unit according to claim 7, characterized in that: A push plate (422) is provided on the side wall of the wrench (42) for abutting against the cylinder (40) of the telescopic locking member (41).

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