Hydraulic power plant oil pump control device

Abstract

The hydraulic power plant oil pump control device comprises a speed regulating unit and a supporting unit, the speed regulating unit comprises a constant-speed motor, a coupling assembly, an oil pumping assembly and a shifting block assembly, the constant-speed motor is arranged on the side edge of the coupling assembly, and the oil pumping assembly is arranged on the other side of the coupling assembly; the shifting block assembly is arranged between the oil pumping assembly and the coupling assembly; the supporting assembly comprises a supporting base, a supporting frame and a supporting rod, the supporting frame is arranged on the side edge of the supporting base, and the supporting rod is arranged in the middle of the supporting base. The phenomenon that the working efficiency is low when a large amount of steam enters the steam turbine when the rotating speed is low during starting of the steam turbine is reduced, meanwhile, the valve can be controlled more accurately, and manual intervention is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of valve speed regulation, in particular to an oil pump control device for a hydropower plant. Background Art

[0002] Hydropower plants mainly use steam to drive steam turbines to generate electricity. Steam turbines, also known as steam turbine engines, are a type of rotary steam power device and are also the main equipment in modern thermal power plants. Its working principle is that high-temperature and high-pressure steam passes through a fixed nozzle to become an accelerated airflow and then is sprayed onto the blades, causing the rotor equipped with blade rows to rotate while performing external work. The speed of the steam turbine is related to the frequency of power generation, so its speed is required to be constant. The realization of its constant speed is generally achieved by adjusting the opening of the nozzle. Generally, an oil pump is used to control the degree of opening of the valve. However, the current valve opening adjustment often has unreasonable designs, resulting in a short service life of the opening adjustment mechanism and the need for frequent maintenance. For the above problems, there is currently a lack of corresponding solutions or equipment. Summary of the invention

[0003] The purpose of this section is to summarize some aspects of embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and the invention title of this application to avoid blurring the purpose of this section, the specification abstract and the invention title, and such simplifications or omissions cannot be used to limit the scope of the present invention.

[0004] In view of the above-mentioned and / or existing problems in the existing oil pump control device of a hydropower plant, the present invention is proposed.

[0005] Therefore, the problem to be solved by the present invention is how to provide an oil pump control device for a hydropower plant.

[0006] To solve the above technical problems, the present invention provides the following technical solutions: a hydropower plant oil pump control device, comprising a speed regulating unit, the speed regulating unit comprising a constant speed motor, a coupling assembly, an oil pump assembly and a shift block assembly, the constant speed motor is arranged on the side of the coupling assembly, the oil pump assembly is arranged on the other side of the coupling assembly, and the shift block assembly is arranged between the oil pump assembly and the coupling assembly; a support assembly, comprising a support base, a support frame and a support rod, the support frame is arranged on the side of the support base, and the support rod is arranged in the middle of the support base.

[0007] As a preferred solution of the oil pump control device of a hydropower plant described in the present invention, the constant speed motor includes an output shaft arranged at its end, the end of the output shaft is provided with an engagement hole, the coupling assembly includes a housing member and a connecting shaft, the connecting shaft is arranged on the side of the housing member, and the connecting shaft and the housing member are coaxially movably matched.

[0008] As a preferred solution of the oil pump control device of a hydropower plant described in the present invention, the outer shell includes a first shell body movably matched with the connecting shaft, and a second shell body movably matched with the output shaft, a first wheel is arranged on the inner side of the first shell body, a first counter-impeller is arranged on the inner side of the first wheel, and a keyway is arranged on the inner side of the first counter-impeller.

[0009] As a preferred solution of the oil pump control device for a hydropower plant described in the present invention, the second housing includes a second wheel arranged on the inner side thereof, the second wheel includes a second counter-impeller arranged on the inner side thereof, and the counter-impeller is fixedly connected to the output shaft.

[0010] As a preferred solution of the oil pump control device of a hydropower plant described in the present invention, the connecting shaft includes a first spline shaft arranged at its end, an engaging shaft is arranged at the end of the first spline shaft, a locking groove is arranged on the other side of the first spline shaft, and a spline sleeve is arranged on the other side of the connecting shaft.

[0011] As a preferred solution of the oil pump control device of the hydropower plant described in the present invention, the oil pump assembly includes an oil pipe, a transmission shaft, a pump casing and a pump cover, the oil pipe is symmetrically arranged on both sides of the oil pump assembly, and the transmission shaft passes through the pump cover and the pump casing.

[0012] As a preferred solution of the oil pump control device of a hydropower plant described in the present invention, wherein: the transmission shaft includes a first shaft arranged on one side of a pump cover, a second shaft arranged on the side of a first housing of the pump, the second shaft includes a splined second shaft arranged at its end, the transmission shaft includes a gear arranged on the inner side of the pump casing, the pump casing includes an oil hole arranged on its side, an arc plate arranged on its inner side, and a synchronous tooth arranged on the inner side of the pump casing, a synchronous ring is arranged on the upper side of the synchronous tooth, and the pump cover includes a through hole arranged on its side.

[0013] As a preferred solution of the oil pump control device of a hydropower plant described in the present invention, the shift block assembly includes a fixed ring arranged on its side, and a movable ring arranged on the other side of the fixed ring, the fixed ring includes a spline ring arranged on its inner side, sliding rods are symmetrically arranged on both sides of the fixed ring, a push spring is arranged at the end of the spline ring, a vertical block is arranged on the side of the sliding rod, a hinge hole is arranged at the end of the sliding rod, and a matching groove is opened in the middle of the hinge hole.

[0014] As a preferred solution of the oil pump control device of a hydropower plant described in the present invention, the movable ring includes a locking ring and a slide groove arranged at its end, and the slide groove is slidably matched with the slide rod. Articulated rods are also arranged on both sides of the movable ring, and movable rings are arranged at the ends of the articulated rods. A moving ring is arranged on the side of the push rod, and a telescopic spring is arranged on the side of the moving ring. The push rod is fixedly connected to the moving ring, and an centrifugal head is arranged on the other side of the articulated rod. The articulated rod is hingedly connected to the centrifugal head, and movable rods are symmetrically arranged on both sides of the centrifugal head, and the movable rods are hingedly connected to the hinge holes.

[0015] As a preferred solution of the oil pump control device for a hydropower plant described in the present invention, the support base includes a bracket arranged on its side, a support ring is arranged on the bracket, and a top ring is arranged at the end of the support rod.

[0016] The beneficial effects of the present invention are as follows: first, the impeller inside the coupler assembly is driven to rotate by the motor, the coupler is filled with oil, and the oil is used as a medium to drive the impeller on the other side to rotate, so that the speed of the impeller connected to one side of the oil pump gradually increases, and then the oil pumping speed of the oil pump is further driven to increase. When the oil pumping speed increases to a set value, the speeds of the impellers on both sides of the coupler tend to be similar. At this time, the external shift block assembly will insert the shaft on the side of the driven impeller into the meshing hole position on the inner side of the active impeller under the action of centrifugal force, so that the motor speed is directly transmitted to the oil pump, so that the oil pump speed is constant, and the turbine valve opening is stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0018] Figure 1 It is a scene diagram of the oil pump control device of the hydropower plant in the embodiment.

[0019] Figure 2 It is a front view of the oil pump control device of the hydropower plant in the embodiment.

[0020] Figure 3 It is an exploded structural diagram of the oil pump control device of the hydropower plant in the embodiment.

[0021] Figure 4 It is a side view of the exploded structure of the oil pump control device of the hydropower plant in the embodiment.

[0022] Figure 5 Schematic diagram of the connection between the motor and the impeller of the oil pump control device of the hydropower plant in the embodiment.

[0023] Figure 6 1 is a pump linkage structure diagram of the oil pump control device of a hydropower plant in the embodiment.

[0024] Figure 7 It is a pump cover opening structure diagram of the oil pump control device of the hydropower plant in the embodiment.

[0025] Figure 8 1 is a structural diagram of a shift block assembly of an oil pump control device for a hydropower plant in an embodiment.

[0026] Fig. 9 This is a schematic diagram of disassembling the shift block assembly of the oil pump control device of the hydropower plant in the embodiment.

[0027] Fig.10 It is the structural diagram of location A of the oil pump control device of the hydropower plant in the embodiment. DETAILED DESCRIPTION

[0028] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0029] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0030] 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 term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0031] Example 1

[0032] Reference Figure 1 and Figure 2 , which is the first embodiment of the present invention, and this embodiment provides a hydropower plant oil pump control device, which includes a speed regulating unit 100 and a support unit 200. The support unit 200 is arranged on the side of the speed regulating unit 100. The speed regulating unit 100 and the support unit 200 can respectively perform their own speed regulating actions and supporting actions.

[0033] Specifically, the speed regulation unit 100 includes a constant speed motor 101, a coupling assembly 102, an oil pump assembly 103 and a shift block assembly 104, the constant speed motor 101 is arranged on the side of the coupling assembly 102, the oil pump assembly 103 is arranged on the other side of the coupling assembly 102, and the shift block assembly 104 is arranged between the oil pump assembly 103 and the coupling assembly 102; the support assembly 200 includes a support base 201, a support frame 202 and a support rod 203, the support frame 202 is arranged on the side of the support base 201, and the support rod 203 is arranged in the middle of the support base 201.

[0034] When in use, first, the constant speed motor 101 is used. The constant speed motor 101 can drive the coupling wheel inside the coupling component 102 to rotate. The coupling component 102 is filled with the oil medium required for transmission. By utilizing the cooperation between the coupling wheel and the oil, when the motor drives the coupling wheel, the coupling wheel on the other side rotates driven by the oil, and the speed gradually increases, and finally increases to be equal to the motor speed. Therefore, the driven coupling gear connected to the oil pumping component 103 through the transmission rod drives the gear inside the oil pumping component 103 to gradually increase its speed, thereby increasing the oil pumping rate of the oil pumping component 103. At this time, the valve controlled by the oil pumping component 103 will increase the valve opening and closing degree when the speed of the oil pumping component 103 gradually increases, thereby affecting the speed of the turbine. The support base 201, the support frame 202 and the support rod 203 mainly provide support for the operation of each component.

[0035] Example 2

[0036] Reference Figures 2 to 7 , which is the second embodiment of the present invention, and is different from the first embodiment in that: it also includes a constant speed motor 101 including an output shaft 101a arranged at its end, and the end of the output shaft 101a is provided with an engagement hole 101a-1, and the coupling component 102 includes a shell member 102a and a connecting shaft 102b, and the connecting shaft 102b is arranged on the side of the shell member 102a, and the connecting shaft 102b and the shell member 102a are coaxially movably matched.

[0037] Preferably, the outer shell 102a includes a first shell 102a-1 movably matched with the connecting shaft 102b, and a second shell 102a-2 movably matched with the output shaft 101a, a first wheel 102a-11 is arranged on the inner side of the first shell 102a-1, a first counter-impeller 102a-12 is arranged on the inner side of the first wheel 102a-11, and a keyway is arranged on the inner side of the first counter-impeller 102a-12.

[0038] Furthermore, the second shell 102a-2 includes a second wheel 102a-21 arranged on the inner side thereof, the second wheel 102a-21 includes a second anti-impeller 102a-22 arranged on the inner side thereof, the anti-impeller 102a-22 is fixedly connected to the output shaft 101a, the connecting shaft 102b includes a first spline shaft 102b-1 arranged at its end, an engaging shaft 102b-11 is arranged at the end of the first spline shaft 102b-1, a locking groove 102b-2 is arranged on the other side of the first spline shaft 102b-1, and a spline sleeve 102b-3 is arranged on the other side of the connecting shaft 102b.

[0039] Preferably, the oil pump assembly 103 includes an oil pipe 103a, a transmission shaft 103b, a pump housing 103c and a pump cover 103d. The oil pipe 103a is symmetrically arranged on both sides of the oil pump assembly 103. The transmission shaft 103b penetrates the pump cover 103d and the pump housing 103c. The transmission shaft 103b includes a first shaft 103b-1 arranged on one side of the pump cover 103d, a second shaft 103b-2 arranged on one side of the pump housing 103c, and the second shaft 103b-2 includes a first shaft 103b-1 arranged on one side of the pump cover 103d, and a second shaft 103b-2 arranged on one end thereof. The transmission shaft 103b includes a gear 103b-3 arranged on the inner side of the pump casing 103c, the pump casing 103c includes an oil hole 103c-1 arranged on its side, an arc plate 103c-2 arranged on the inner side thereof, a synchronous tooth 103c-3 arranged on the inner side of the pump casing 103c, a synchronous ring 103c-31 is arranged on the upper side of the synchronous tooth 103c-3, and the pump cover 103d includes a through hole 103d-1 arranged on its side.

[0040] In the previous embodiment, the oil pump control device of the hydropower plant includes a speed regulating unit 100 and a support unit 200, the speed regulating unit 100 includes a constant speed motor 101, a coupling assembly 102, an oil pump assembly 103 and a shift block assembly 104, the constant speed motor 101 is arranged on the side of the coupling assembly 102, the oil pump assembly 103 is arranged on the other side of the coupling assembly 102, and the shift block assembly 104 is arranged between the oil pump assembly 103 and the coupling assembly 102; the support assembly 200 includes a support base 201, a support frame 202 and a support rod 203, the support frame 202 is arranged on the side of the support base 201, and the support rod 203 is arranged in the middle of the support base 201.

[0041] When in use, first, the constant speed motor 101 is used. The constant speed motor 101 can drive the coupling wheel inside the coupling component 102 to rotate. The coupling component 102 is filled with the oil medium required for transmission. By utilizing the cooperation between the coupling wheel and the oil, when the motor drives the coupling wheel, the coupling wheel on the other side rotates driven by the oil, and the speed gradually increases, and finally increases to the same as the motor speed. Therefore, the driven coupling gear connected to the oil pumping component 103 through the transmission rod drives the gear inside the oil pumping component 103 to gradually increase its speed, thereby increasing the oil pumping rate of the oil pumping component 103. At this time, the valve controlled by the oil pumping component 103 will increase its valve opening and closing degree when the speed of the oil pumping component 103 gradually increases, thereby affecting the speed of the turbine.

[0042] In this embodiment, an engagement hole 101a-1 is provided at the end of the output shaft 101a, and the output shaft 101a is fixedly connected to the second wheel 102a-21. The second wheel 102a-21 drives the oil inside the coupling component 102 to rotate, so that it drives the first wheel 102a-11 to rotate. The first counter-impeller 102a-12 and the second counter-impeller 102a-22 are arranged in opposite directions to the coupling wheel blades, so that the oil can pass through the outer wall inside the coupling component 102 and then return to the coupling wheel at the motor end along the counter-impeller in the shaft, thereby circulating, so that the coupling wheel can continuously transmit torque.

[0043] Furthermore, when the rotational speed of the first wheel 102a-11 is equal to that of the second wheel 102a-21, the engaging shaft 102b-11 is inserted into the engaging hole 101a-1 through the action of the shift block assembly 104, so that the first wheel and the second wheel are hard-connected, and the first spline shaft 102b-1 always remains connected to the first wheel 102a-11, and the engaging groove 102b-2 cooperates with the shift block assembly, so that the shift block assembly 104 pushes the connecting shaft 102b deeper into the motor end.

[0044] Preferably, the spline sleeve 102b-3 meshes with the spline second shaft 103b-21 to transmit torque to the oil pumping assembly. Under the action of the gear 103b-3, the synchronizer ring 103c-31 rotates inside the pump casing 103c. The gear axis position deviates from the center position of the pump casing, so that a cavity structure is formed inside the pump casing. The meshing between the gears is used to change the local volume to form a pressure difference, thereby completing the oil pumping operation. The through hole 103d-1 is used for the placement of the gear shaft.

[0045] Example 3

[0046] Reference Figures 1 to 10, which is the third embodiment of the present invention, and is different from the previous two embodiments in that: the shift block assembly 104 includes a fixed ring 104a arranged on its side, and a movable ring 104b arranged on the other side of the fixed ring 104a, the fixed ring 104a includes a spline ring 104a-1 arranged on the inner side thereof, and slide rods 104a-2 are symmetrically arranged on both sides of the fixed ring 104a, and a push spring 104a-3 is arranged at the end of the spline ring 104a-1, a vertical block 104a-21 is arranged on the side of the slide rod 104a-2, and a hinge hole 104a-22 is arranged at the end of the slide rod 104a-2, and a matching groove 104a-23 is opened in the middle of the hinge hole 104a-22.

[0047] Preferably, the movable ring 104b includes a snap ring 104b-1 and a slide groove 104b-2 arranged at its end, the storytelling slide groove 104b-2 is slidably matched with the slide rod 104a-2, hinged rods 104c are also arranged on both sides of the movable ring 104b, the end of the hinged rod 104c is provided with a movable ring 104b, the side of the push rod 104c-1 is provided with a moving ring 104c-11, the side of the moving ring 104c-11 is provided with a telescopic spring 104c-12, the push rod 104c-1 and the moving ring 1 04c-11 is fixedly connected, a centrifugal head 104c-2 is arranged on the other side of the hinged rod 104c, the hinged rod 104c is hingedly connected to the centrifugal head 104c-2, movable rods 104c-21 are symmetrically arranged on both sides of the centrifugal head 104c-2, the movable rods 104c-21 are hingedly connected to the hinge holes 104a-22, the support base 201 includes a bracket 201a arranged on its side, a support ring 201b is arranged on the bracket 201a, and a top ring 203b is arranged at the end of the support rod 203.

[0048] In the first two embodiments, the oil pump control device of the hydropower plant includes a speed regulating unit 100 and a support unit 200, the speed regulating unit 100 includes a constant speed motor 101, a coupling assembly 102, an oil pump assembly 103 and a shift block assembly 104, the constant speed motor 101 is arranged on the side of the coupling assembly 102, the oil pump assembly 103 is arranged on the other side of the coupling assembly 102, and the shift block assembly 104 is arranged between the oil pump assembly 103 and the coupling assembly 102; the support assembly 200 includes a support base 201, a support frame 202 and a support rod 203, the support frame 202 is arranged on the side of the support base 201, and the support rod 203 is arranged in the middle of the support base 201.

[0049] When in use, first, the constant speed motor 101 is used. The constant speed motor 101 can drive the coupling wheel inside the coupling component 102 to rotate. The coupling component 102 is filled with the oil medium required for transmission. By utilizing the cooperation between the coupling wheel and the oil, when the motor drives the coupling wheel, the coupling wheel on the other side rotates driven by the oil, and the speed gradually increases, and finally increases to the same as the motor speed. Therefore, the driven coupling gear connected to the oil pumping component 103 through the transmission rod drives the gear inside the oil pumping component 103 to gradually increase its speed, thereby increasing the oil pumping rate of the oil pumping component 103. At this time, the valve controlled by the oil pumping component 103 will increase its valve opening and closing degree when the speed of the oil pumping component 103 gradually increases, thereby affecting the speed of the turbine.

[0050] Preferably, an engaging hole 101a-1 is provided at the end of the output shaft 101a, and the output shaft 101a is fixedly connected to the second wheel 102a-21. The second wheel 102a-21 drives the oil inside the coupling component 102 to rotate, so that it drives the first wheel 102a-11 to rotate. The first counter-impeller 102a-12 and the second counter-impeller 102a-22 are arranged in opposite directions to the coupling wheel blades, so that the oil can pass through the outer wall inside the coupling component 102 and return to the coupling wheel at the motor end along the counter-impeller in the shaft, thereby circulating, so that the coupling wheel can continuously transmit torque.

[0051] Furthermore, when the rotational speed of the first wheel 102a-11 is equal to that of the second wheel 102a-21, the engaging shaft 102b-11 is inserted into the engaging hole 101a-1 through the action of the shift block assembly 104, so that the first wheel and the second wheel are hard-connected, and the first spline shaft 102b-1 always remains connected to the first wheel 102a-11, and the engaging groove 102b-2 cooperates with the shift block assembly, so that the shift block assembly 104 pushes the connecting shaft 102b deeper into the motor end.

[0052] Preferably, the spline sleeve 102b-3 meshes with the spline second shaft 103b-21 to transmit torque to the oil pumping assembly. Under the action of the gear 103b-3, the synchronizer ring 103c-31 rotates inside the pump casing 103c. The gear axis position deviates from the center position of the pump casing, so that a cavity structure is formed inside the pump casing. The meshing between the gears is used to change the local volume to form a pressure difference, thereby completing the oil pumping operation. The through hole 103d-1 is used for the placement of the gear shaft.

[0053] In this embodiment, the engaging groove 102b-2 cooperates with the spline ring 104a-1, and during installation, the fixed ring 104a contacts the top ring 203b, and the movable ring 104b cooperates coaxially with the engaging groove 102b-2. The rotation of the connecting shaft 102b causes the shift block assembly 104 to rotate synchronously. Therefore, the centrifugal head 104c-2 will be thrown away by the centrifugal force during rotation, causing the telescopic spring 104c-12 to be compressed, and the push spring 104a-3 pushes the movable ring 104b outward. The engagement of the movable ring 104b with the engaging groove 102b-2 will cause the movable ring 104b to push the connecting shaft to move. Therefore, the meshing shaft 102b-11 at the end of the connecting shaft 102b will mesh with the meshing hole 101a-1 to maintain synchronization. At this time, the entire device is driven by a constant speed motor to pump oil, and the pumping speed is constant, so that the turbine can run stably.

[0054] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A hydropower plant oil pump control device, characterized in that: include, A speed regulating unit (100), the speed regulating unit comprising a constant speed motor (101), a coupling assembly (102), an oil pump assembly (103) and a shifting block assembly (104), the constant speed motor (101) being arranged on a side of the coupling assembly (102), the oil pump assembly (103) being arranged on the other side of the coupling assembly (102), and the shifting block assembly (104) being arranged between the oil pump assembly (103) and the coupling assembly (102); as well as, The support assembly (200) comprises a support base (201), a support frame (202) and a support rod (203), wherein the support frame (202) is arranged on the side of the support base (201), and the support rod (203) is arranged in the middle of the support base (201).

2. The oil pump control device for a hydropower plant according to claim 1, characterized in that: The constant speed motor (101) comprises an output shaft (101a) arranged at its end, the end of the output shaft (101a) being provided with an engagement hole (101a-1), the coupling assembly (102) comprising a housing member (102a) and a connecting shaft (102b), the connecting shaft (102b) being arranged on the side of the housing member (102a), and the connecting shaft (102b) and the housing member (102a) being coaxially movably matched.

3. The oil pump control device for a hydropower plant according to claim 2, characterized in that: The outer shell (102a) comprises a first shell (102a-1) movably matched with the connecting shaft (102b), and a second shell (102a-2) movably matched with the output shaft (101a), a first wheel (102a-11) is arranged on the inner side of the first shell (102a-1), a first counter-impeller (102a-12) is arranged on the inner side of the first wheel (102a-11), and a key groove is arranged on the inner side of the first counter-impeller (102a-12).

4. The oil pump control device for a hydropower plant according to any one of claim 3, characterized in that: The second housing (102a-2) includes a second wheel (102a-21) arranged on the inner side thereof, and the second wheel (102a-21) includes a second counter-impeller (102a-22) arranged on the inner side thereof, and the counter-impeller (102a-22) is fixedly connected to the output shaft (101a).

5. The oil pump control device for a hydropower plant according to any one of claims 2 to 4, characterized in that: The connecting shaft (102b) comprises a first spline shaft (102b-1) arranged at its end, a meshing shaft (102b-11) is arranged at the end of the first spline shaft (102b-1), a locking groove (102b-2) is arranged at the other side of the first spline shaft (102b-1), and a spline sleeve (102b-3) is arranged at the other side of the connecting shaft (102b).

6. The oil pump control device for a hydropower plant according to any one of claims 1 to 3, characterized in that: The oil pump assembly (103) comprises an oil pipe (103a), a transmission shaft (103b), a pump housing (103c) and a pump cover (103d); the oil pipe (103a) is symmetrically arranged on both sides of the oil pump assembly (103); and the transmission shaft (103b) passes through the pump cover (103d) and the pump housing (103c).

7. The oil pump control device for a hydropower plant according to claim 6, characterized in that: The transmission shaft (103b) comprises a first shaft (103b-1) arranged on one side of the pump cover (103d), a second shaft (103b-2) arranged on one side of the pump housing (103c), the second shaft (103b-2) comprising a splined second shaft (103b-21) arranged at its end, the transmission shaft (103b) comprising a gear (103b-3) arranged on the inner side of the pump housing (103c), the pump housing (103c) comprising an oil hole (103c-1) arranged on its side, an arc plate (103c-2) arranged on its inner side, and a synchronous tooth (103c-3) arranged on the inner side of the pump housing (103c), a synchronous ring (103c-31) being arranged on the upper side of the synchronous tooth (103c-3), and the pump cover (103d) comprising a through hole (103d-1) arranged on its side.

8. The oil pump control device for a hydropower plant according to claim 7, characterized in that: The shift block assembly (104) includes a fixed ring (104a) arranged on its side, and a movable ring (104b) arranged on the other side of the fixed ring (104a), the fixed ring (104a) includes a spline ring (104a-1) arranged on the inner side thereof, sliding rods (104a-2) are symmetrically arranged on both sides of the fixed ring (104a), a push spring (104a-3) is arranged at the end of the spline ring (104a-1), a vertical block (104a-21) is arranged on the side of the sliding rod (104a-2), a hinge hole (104a-22) is arranged at the end of the sliding rod (104a-2), and a matching groove (104a-23) is opened in the middle of the hinge hole (104a-22).

9. The oil pump control device for a hydropower plant according to claim 8, characterized in that: The movable ring (104b) comprises a locking ring (104b-1) and a slide groove (104b-2) arranged at its end, the storytelling slide groove (104b-2) is slidably matched with the slide rod (104a-2), hinged rods (104c) are also arranged on both sides of the movable ring (104b), the movable ring (104b) is arranged at the end of the hinged rod (104c), the side of the push rod (104c-1) is provided with a moving ring (104c-11), and the side of the moving ring (104c-11) is provided with a movable ring (104c-11). A telescopic spring (104c-12) is provided, the push rod (104c-1) is fixedly connected to the moving circle (104c-11), an eccentric head (104c-2) is provided on the other side of the hinged rod (104c), the hinged rod (104c) and the eccentric head (104c-2) are hingedly connected, movable rods (104c-21) are symmetrically provided on both sides of the eccentric head (104c-2), and the movable rods (104c-21) are hingedly connected to the hinge hole (104a-22).

10. The oil pump control device for a hydropower plant according to any one of claims 7 to 9, characterized in that: The support base (201) comprises a bracket (201a) arranged on a side thereof, a support ring (201b) is arranged on the bracket (201a), and a top ring (203b) is arranged at the end of the support rod (203).

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