A hydraulic generator set servomotor pressure stroke adjusting device

Abstract

The present application relates to the technical field of hydroelectric power generation, especially to a water turbine unit connecting rod pressure stroke adjusting device, comprising a clamping mechanism, the clamping mechanism comprises a clamping part, the clamping part is provided with a connecting part; a transmission mechanism is arranged on the clamping mechanism; a power mechanism is arranged at one end of the transmission mechanism, and the power mechanism can lift the transmission mechanism; the clamping part and the transmission mechanism are arranged, so that the pressure stroke of the connecting rod can be continuously adjusted; the clamping part and the connecting part are arranged, so that the device is convenient to disassemble; in particular, the convex arc surface is matched with the concave arc surface, so that the first clamping part and the second clamping part do not have to be completely separated, which is convenient for installation and storage of the clamping part.

Description

Technical Field

[0001] This invention relates to the field of hydropower technology, and in particular to a hydropower generator set relay clamping stroke adjustment device. Background Technology

[0002] The servo motor is mainly used to control the opening and closing of the turbine guide vanes, thereby regulating the water flow into the turbine and consequently controlling its speed and output power. It is a crucial device for speed regulation and load control in hydropower systems. The clamping stroke refers to the additional stroke the servo motor continues to close after the guide vanes have closed. This is done to ensure complete closure and prevent slight opening or leakage due to various factors (such as pressurized water inside the volute, component deformation, or gaps at connections). This additional stroke maintains a certain degree of tightness in the guide vanes after closure.

[0003] Currently, the method for adjusting the clamping stroke of unqualified relays during the maintenance of hydro-generators is to manually tap the push-pull rod of the relay with a hammer to further tighten it. Due to environmental space and other issues, this adjustment method requires at least three people to work together. There are significant safety hazards when tapping with a hammer, and the work efficiency is also low. Summary of the Invention

[0004] In view of the inconvenience of adjusting the clamping stroke of the hydroelectric generator set servo in the above-mentioned or existing technologies, the present invention is proposed.

[0005] Therefore, the purpose of this invention is to provide a hydraulic generator set servo clamping stroke adjustment device.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution: including,

[0007] A clamping mechanism, including a clamping component, wherein a connecting component is provided on the clamping component;

[0008] The transmission mechanism is mounted on the clamping mechanism;

[0009] A power mechanism is located at one end of the transmission mechanism, and the power mechanism can lift the transmission mechanism.

[0010] As a preferred embodiment of the hydraulic generator set relay clamping stroke adjustment device of the present invention, the clamping component includes a first clamping member and a second clamping member, wherein the first clamping member and the second clamping member are respectively configured as semi-circular and can be enclosed to form a ring.

[0011] As a preferred embodiment of the hydraulic generator set relay clamping stroke adjustment device of the present invention, wherein: clamping surfaces are provided opposite to each other on the inner arc surface of the first clamping member, and the clamping surfaces are parallel to each other;

[0012] The first clamping member has a first groove circumferentially provided on the outer arc surface, and one end face of the first clamping member is provided as a convex arc surface.

[0013] As a preferred embodiment of the hydraulic generator set relay clamping stroke adjustment device of the present invention, wherein: the side of the first clamping member is provided with a plurality of first locking holes and first connecting holes provided at both ends of the side.

[0014] As a preferred embodiment of the hydraulic generator set relay clamping stroke adjustment device of the present invention, wherein: a second groove is provided along the circumferential direction on the outer arc surface of the second clamping member, and the second groove can be connected and closed with the first groove to form an annular groove;

[0015] One end face of the second clamping member is configured as a concave arc surface, and the convex arc surface is adapted to the concave arc surface.

[0016] As a preferred embodiment of the hydraulic generator set relay clamping stroke adjustment device of the present invention, wherein: the second clamping member is provided with a plurality of second locking holes at intervals on its side and second connecting holes provided at both ends of its side.

[0017] As a preferred embodiment of the hydraulic generator set relay clamping stroke adjustment device of the present invention, the connecting component includes a connecting rib and a pin, wherein the pin is respectively disposed at both ends of the connecting rib.

[0018] As a preferred embodiment of the hydraulic generator set relay clamping stroke adjustment device of the present invention, the transmission mechanism includes a transmission rod and a connector, the connector is C-shaped, and the transmission rod is fixedly connected to the far end of the C-shaped opening of the connector.

[0019] As a preferred embodiment of the hydraulic generator set relay clamping stroke adjustment device of the present invention, the connector is adapted to the first groove and the second groove and rotates along the first groove and the second groove.

[0020] As a preferred embodiment of the hydraulic generator set relay clamping stroke adjustment device of the present invention, the power mechanism includes a support base, and the top of the support base is provided with a plug-in groove.

[0021] The beneficial effects of the hydraulic generator set relay clamping stroke adjustment device of the present invention are as follows: The present invention realizes the continuous operation of the relay clamping stroke through the setting of clamping components and transmission mechanism; the setting of clamping components and connecting components makes the device easy to disassemble; in particular, the convex arc surface and the concave arc surface are adapted to each other, so that the first clamping component and the second clamping component do not need to be completely separated, which facilitates both installation and storage of clamping components. Attached Figure Description

[0022] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the overall adjustment device for the clamping stroke of the hydroelectric generator set servo.

[0024] Figure 2 This is a schematic diagram of the clamping component.

[0025] Figure 3 This is a schematic diagram of the structure of the first clamping component.

[0026] Figure 4 This is a side view of the first clamping component.

[0027] Figure 5 This is a schematic diagram of the second clamping component.

[0028] Figure 6 This is a side view of the second clamping element.

[0029] Figure 7 This is a structural diagram of the connecting components.

[0030] Figure 8 This is a schematic diagram of the transmission mechanism.

[0031] Figure 9 This is a schematic diagram of the power mechanism.

[0032] Figure 10 This is a schematic diagram of the clamping stroke adjustment device of the hydroelectric generator set servo clamped on the push-pull rod. Detailed Implementation

[0033] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0034] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0035] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.

[0036] Example 1, referring to Figures 1 to 7 This is the first embodiment of the present invention, which provides a hydraulic generator set servo clamping stroke adjustment device.

[0037] Specifically, it includes a clamping mechanism 100, which is used to clamp the push-pull rod M and drive the push-pull rod M to rotate.

[0038] It also includes a transmission mechanism 200, which is detachably connected to the clamping mechanism 100, and applies the power output from the power mechanism 300 to the clamping mechanism 100.

[0039] And a power mechanism 300, which is located at one end of the transmission mechanism 200, includes a jack that can lift the transmission mechanism 200.

[0040] Furthermore, the clamping mechanism 100 includes a clamping component 101, and a connecting component 102 is bolted to the clamping component 101, the connecting component 102 fixing the clamping component 101 into a whole.

[0041] Specifically, the clamping component 101 includes a first clamping member 101a and a second clamping member 101b. The first clamping member 101a and the second clamping member 101b are respectively configured as semi-circular and can be enclosed to form a ring.

[0042] The inner arc surface of the first clamping member 101a has clamping surfaces 101a-1 arranged opposite each other, and the clamping surfaces 101a-1 arranged opposite each other are parallel to each other; the clamping surfaces 101a-1 correspond to the anti-rotation surface Ma arranged on the push-pull rod M. When the clamping member 101 is clamped on the push-pull rod M, the clamping surfaces 101a-1 on both sides abut against the anti-rotation surface Ma respectively; when the clamping member 101 rotates around the push-pull rod M, due to the interaction between the clamping surfaces 101a-1 and the anti-rotation surface Ma, the push-pull rod M can rotate synchronously with the clamping member 101.

[0043] Furthermore, a first groove 101a-5 is provided circumferentially on the outer arc surface of the first clamping member 101a, and a second groove 101b-3 is provided circumferentially on the outer arc surface of the second clamping member 101b. When the first clamping member 101a and the second clamping member 101b are joined together to form a complete ring, the first groove 101a-5 and the second groove 101b-3 close to form a complete annular groove, so that the connector 202 can rotate around the clamping member 101 within the complete annular groove formed by the closure of the first groove 101a-5 and the second groove 101b-3.

[0044] It should be noted that, in order to facilitate the docking of the first clamping member 101a and the second clamping member 101b, the two end faces of the first clamping member 101a and the second clamping member 101b are respectively machined into straight faces.

[0045] To facilitate the fixed connection and disassembly of the first clamping member 101a and the second clamping member 101b, the present invention also provides a connecting component 102, which includes a connecting rib 102a and a pin 102b, with the pin 102b respectively disposed at both ends of the connecting rib 102a.

[0046] Specifically, there are two connecting ribs 102a, located on both sides of the first clamping member 101a and the second clamping member 101b respectively. The pin 102b at one end passes through the first connecting hole 101a-4 of the connecting rib 102a and the first clamping member 101a, and the pin 102b at the other end passes through the second connecting hole 101b-2 of the connecting rib 102a and the second clamping member 101b, so that the first clamping member 101a and the second clamping member 101b are fixedly connected by the connecting component 102.

[0047] It is conceivable that the connecting component 102 needs to be set in two sets in order to achieve the purpose of fixing the first clamping component 101a and the second clamping component 101b.

[0048] Example 2, refer to Figure 2 , 3 5. This is the second embodiment of the present invention. Unlike the previous embodiment, this embodiment provides another docking method for the clamping component of the hydraulic generator set relay clamping stroke adjustment device, which further improves the ease of operation of the device.

[0049] Specifically, one end face of the first clamping member 101a is machined as a convex arc surface 101a-3, and the other end face is machined as a flat surface; the end face of the second clamping member 101b corresponding to the convex arc surface 101a-3 is set as a concave arc surface 101b-1, and the other end face is also machined as a flat surface; the convex arc surface 101a-3 and the concave arc surface 101b-1 are mated.

[0050] When the clamping mechanism 100 needs to be clamped onto the push-pull rod M, the connecting part 102 at the straight end of the first clamping member 101a and the second clamping member 101b is removed. The other end is connected by the connecting part 102, so that the concave arc surface 101b-1 and the convex arc surface 101a-3 form a hinge connection, so that the second clamping member 101b rotates relative to the convex arc surface 101a-3, so that the opening of the first clamping member 101a is fully exposed, thus achieving incomplete separation of the first clamping member 101a and the second clamping member 101b. The first clamping member 101a can then be sleeved onto the push-pull rod M.

[0051] Then rotate the second clamping member 101b back along the convex arc surface 101a-3 so that the straight surfaces of the other ends of the two are in contact, and lock the connecting member 102 again to complete the clamping and locking of the clamping mechanism 100 and the push-pull rod M.

[0052] Example 3, referring to Figures 8-10 This is the third embodiment of the present invention. Unlike the previous embodiment, this embodiment provides a transmission method and a power mechanism, which solves the power problem of providing the preload force of the push-pull rod in this device, including the clamping mechanism in the above embodiment.

[0053] Specifically, the device also includes a transmission mechanism 200, which includes a transmission rod 201 and a connector 202. The connector 202 is C-shaped, and the transmission rod 201 is fixedly connected to the opposite direction of the C-shaped opening of the connector 202.

[0054] Furthermore, the first clamping member 101a has first locking holes 101a-2 at equal intervals, and the first locking holes 101a-2 penetrate through the side walls on both sides of the first groove 101a-5. The second clamping member 101b has second locking holes 101b-4 at equal intervals, and the second locking holes 101b-4 penetrate through the side walls on both sides of the second groove 101b-3. At the same time, the first locking holes 101a-2 and the second locking holes 101b-4 are also equally spaced. For ease of description, the first locking holes 101a-2 and the second locking holes 101b-4 are collectively referred to as locking holes below.

[0055] It should be noted that the spacing between the locking holes is equal to the chord length of connector 202.

[0056] Considering the actual situation of the transmission mechanism 200 adjusting the angle, the span of several locking holes can also be set to be equal to the chord length of the connector 202.

[0057] The C-shaped opening of the connector 202 is adapted to the first groove 101a-5 and the second groove 101b-3. After the first clamping member 101a and the second clamping member 101b are fixedly connected, the connector 202 is embedded in the annular through groove formed by the first groove 101a-5 and the second groove 101b-3. When it is necessary to fix the transmission mechanism 200 and the clamping member 101, the bolt is passed through the corresponding first locking hole 101a-2 or second locking hole 101b-4 and the through holes at both ends of the connector 202 and locked to complete the fixed connection between the transmission mechanism 200 and the clamping member 101. When it is necessary to change the relative angle between the transmission mechanism 200 and the clamping member 101, the bolt is unscrewed, and the connector 202 can rotate circumferentially along the annular through groove formed by the first groove 101a-5 and the second groove 101b-3, and then the bolt is locked.

[0058] The device further includes a power mechanism 300, which includes a jack and a support base 301 mounted on the upper part of the jack. The support base 301 has a insertion slot 302 on its top. The power mechanism 300 can provide power for the rotation of the clamping mechanism 100.

[0059] Specifically, after the clamping mechanism 100 is fixedly connected to the transmission mechanism 200, the other end of the transmission rod 201 is inserted into the insertion slot 302 and forms a rotatable connection with the support base 301 through a pin. After the jack is raised, the hinged end of the transmission rod 201 and the support base 301 is raised, and the transmission rod 201 drives the connector 202 to change its current angle. The connector 202 drives the clamping mechanism 100 to rotate synchronously.

[0060] When using the device, first assemble the device; clamp the clamping mechanism 100 onto the push-pull rod M, and make the clamping surface 101a-1 abut against the anti-rotation surface Ma;

[0061] Second, operate the jack to lift the transmission rod 201. Since the other end of the transmission rod 201 is fixedly connected to the clamping component 101 through the connector 202, and the clamping mechanism 100 is fixedly connected to the push-pull rod M, the transmission mechanism 200 and the center of the push-pull rod M are rotatably connected. As the jack pushes the transmission rod 201 upward, the other end of the transmission rod 201 drives the push-pull rod M to rotate through the clamping component 101 to meet the clamping stroke requirements of the relay.

[0062] Third, due to the influence of the assembly relationship, the transmission rod 201 can only rotate at a certain angle; therefore, when the transmission rod 201 rotates to its limit, the bolts between the connector 202 and the first clamping member 101a and / or the second clamping member 101b are unscrewed, so that the connector 202 rotates along the first groove 101a-5 and / or the second groove 101b-3, so as to satisfy the jack driving the transmission rod 201 to reset, and then the bolts are used to lock the connector 202 with the first clamping member 101a and / or the second clamping member 101b;

[0063] Repeat steps two and three until the relay clamping stroke is satisfied; finally, remove the connecting part 102 and remove the clamping part 101 for reuse.

[0064] In summary, the arrangement of the clamping component 101 and the transmission mechanism 200 in this device enables the continuous operation of the relay clamping stroke; the arrangement of the clamping component 101 and the connecting component 102 makes the device easy to disassemble; in particular, the convex arc surface 101a-3 and the concave arc surface 101b-1 are adapted to each other, so that the first clamping component 101a and the second clamping component 101b do not need to be completely separated to perform clamping and installation, which facilitates both installation and storage of the clamping component 101.

[0065] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape, and proportions of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of the invention. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structurally equivalent but also equivalent in structure. Other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments without departing from the scope of the invention. Therefore, the present invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0066] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the invention as currently considered, or those features that are not relevant to implementing the invention) may be omitted.

[0067] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0068] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A hydraulic generator set servo relay clamping stroke adjustment device, characterized in that: include, The clamping mechanism (100) includes a clamping component (101) and a connecting component (102) is provided on the clamping component (101). A transmission mechanism (200) is provided on the clamping component (101); A power mechanism (300) is disposed at one end of the transmission mechanism (200), and the power mechanism (300) can lift the transmission mechanism (200); The clamping component (101) includes a first clamping member (101a) and a second clamping member (101b). The first clamping member (101a) and the second clamping member (101b) are respectively configured as semi-circular and can be enclosed to form a ring. The first clamping member (101a) has clamping surfaces (101a-1) arranged opposite each other on its inner arc surface, and the clamping surfaces (101a-1) are parallel to each other; The first clamping member (101a) has a first groove (101a-5) circumferentially provided on the outer arc surface, and one end face of the first clamping member (101a) is provided as a convex arc surface (101a-3). The first clamping member (101a) has a plurality of first locking holes (101a-2) spaced apart on its side and first connecting holes (101a-4) at both ends of its side. The second clamping member (101b) has a second groove (101b-3) arranged circumferentially on its outer arc surface. The second groove (101b-3) can be connected and closed with the first groove (101a-5) to form an annular groove. One end face of the second clamping member (101b) is configured as a concave arc surface (101b-1), and the convex arc surface (101a-3) is adapted to the concave arc surface (101b-1); The second clamping member (101b) has a plurality of second locking holes (101b-4) spaced apart on its side and second connecting holes (101b-2) at both ends of its side. The connecting component (102) includes a connecting rib (102a) and a pin (102b), wherein the pin (102b) is respectively disposed at both ends of the connecting rib (102a); The transmission mechanism (200) is locked to the clamping component (101) through the first locking hole (101a-2) and the second locking hole (101b-4).

2. The hydraulic generator set servo clamping stroke adjustment device as described in claim 1, characterized in that: The transmission mechanism (200) includes a transmission rod (201) and a connector (202). The connector (202) is C-shaped, and the transmission rod (201) is fixedly connected to the far end of the C-shaped opening of the connector (202).

3. The hydraulic generator set servo clamping stroke adjustment device as described in claim 2, characterized in that: The connector (202) is adapted to the first groove (101a-5) and the second groove (101b-3) and rotates along the first groove (101a-5) and the second groove (101b-3).

4. The hydraulic generator set servo clamping stroke adjustment device as described in any one of claims 1 to 3, characterized in that: The power mechanism (300) includes a support base (301), and the top of the support base (301) is provided with a plug groove (302).

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