Dismounting device for air brake of hydro-generator brake

Abstract

The invention discloses a hydro-generator brake air brake dismounting device, and relates to the technical field of hydro-generator maintenance, the hydro-generator brake air brake dismounting device comprises a main body unit, the main body unit comprises a cylinder body, a lower piston arranged in the cylinder body, an upper piston arranged above the lower piston, and a connecting piece arranged on the upper piston; the dismounting unit comprises a supporting assembly arranged below the cylinder body, an upper connecting assembly arranged on the supporting assembly and a power assembly arranged on the upper connecting assembly. According to the hydro-generator brake air brake dismounting device, the dismounting unit is arranged, the power assembly on the dismounting unit is used for driving the electromagnet to dismount the upper piston and the lower piston, the situations that manual dismounting with brute force lacks of acting points, clamping is prone to occurring, and the inner wall of a cylinder body is prone to being abraded are avoided, air brake equipment is protected against damage, and the service life of the air brake equipment is prolonged. The sealing performance of the inner cavity of the cylinder body is guaranteed, then safe and effective work of a unit is guaranteed, and meanwhile the disassembling efficiency of air brake equipment is improved.

Description

Technical Field

[0001] The invention relates to the technical field of maintenance of a hydraulic generator, in particular to a hydraulic generator brake air brake disassembly device. Background Art

[0002] During the overhaul of the brake of the hydro-turbine generator, the brake damper needs to be disassembled and repaired. However, there are many difficulties in the disassembly process, such as the cylindrical structure of the piston and bushing leads to a lack of a force point during disassembly, the piston and bushing are heavy, and the piston bushing is easy to get stuck with the cylinder body.

[0003] The existing solutions usually involve using handles and multiple people to work together, which is not only time-consuming and laborious, but also easy to damage the internal components of the damper, resulting in reduced sealing effect and even causing uncertain accidents of the unit. Improvements are needed. Summary of the invention

[0004] 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.

[0005] In view of the problems that the existing hydraulic generator brake wind gate disassembly device has a lack of fulcrum, is heavy and is easy to get stuck, the present invention is proposed.

[0006] Therefore, the purpose of the present invention is to provide a hydraulic generator brake wind gate disassembly device, which aims to solve the problems of lack of fulcrum, heavy weight and easy jamming in the existing disassembly process.

[0007] In order to solve the above technical problems, the present invention provides the following technical solutions: comprising a main unit, including a cylinder, a lower piston arranged inside the cylinder, an upper piston arranged above the lower piston, and a connecting piece arranged on the upper piston;

[0008] The disassembly unit comprises a support assembly arranged below the cylinder body, an upper connection assembly arranged on the support assembly, a power assembly arranged on the upper connection assembly, and a magnetic attraction assembly arranged on the power assembly.

[0009] As a preferred solution of the hydraulic generator brake wind gate disassembly device of the present invention, the support assembly includes a base arranged below the cylinder body and six main limbs arranged on the base.

[0010] As a preferred solution of the hydraulic generator brake wind gate disassembly device of the present invention, a rectangular positioning groove matching the cylinder body is arranged on the base, and a circular positioning groove is arranged on the base and located on one side of the rectangular positioning groove.

[0011] As a preferred solution of the hydraulic generator brake damper disassembly device of the present invention, the circular positioning groove is consistent with the shape of the lower piston and the upper piston.

[0012] As a preferred solution of the hydro-turbine generator brake wind gate disassembly device described in the present invention, the upper connecting assembly includes a top frame arranged above the main limb, a positioning sleeve arranged on the main limb, and a protruding rod arranged on the top frame and connected to the positioning sleeve.

[0013] As a preferred solution of the hydraulic generator brake wind gate disassembly device of the present invention, the power assembly includes two connecting rail plates arranged on the top frame, and a positioning trolley arranged on the two connecting rail plates.

[0014] As a preferred solution of the hydro-generator brake wind gate disassembly device of the present invention, the power assembly also includes a hydraulic pump arranged on the positioning trolley, an oil tank arranged on the positioning trolley, and a hydraulic cylinder arranged on the positioning trolley.

[0015] As a preferred solution of the hydraulic generator brake wind gate disassembly device of the present invention, the magnetic attraction component includes an electromagnet arranged on the hydraulic cylinder, and a heat sink arranged on the electromagnet.

[0016] As a preferred solution of the hydraulic generator brake damper disassembly device of the present invention, there are a plurality of heat sinks, which are evenly distributed on the outer surface of the electromagnet.

[0017] As a preferred solution of the hydraulic generator brake damper disassembly device of the present invention, the connecting member includes a bushing arranged on the upper piston and a retaining ring arranged on the bushing.

[0018] The beneficial effects of the present invention are as follows: by setting up a disassembly unit, a power assembly on the disassembly unit is used to drive the electromagnet to disassemble the upper piston and the lower piston, thereby avoiding the lack of fulcrum points for manual disassembly using brute force, easy jamming, and easy wear of the inner wall of the cylinder body, thereby protecting the wind gate equipment from damage, ensuring the sealing of the internal cavity of the cylinder body, and thus ensuring the safe and effective operation of the unit, while improving the efficiency of disassembly of the wind gate equipment, and having strong practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative labor.

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0021] Figure 2 It is a schematic diagram of the structure of the power assembly of the present invention.

[0022] Figure 3 It is a schematic diagram of the structure of the power component and the magnetic attraction component of the present invention.

[0023] Figure 4 It is a schematic structural diagram of the support assembly and the upper connecting assembly of the present invention.

[0024] Figure 5 It is a structural schematic diagram of the main unit of the present invention. DETAILED DESCRIPTION

[0025] 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.

[0026] 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.

[0027] 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.

[0028] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the embodiments of the present invention in detail, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0029] Example 1, reference Figures 1 to 5, which is the first embodiment of the present invention, provides a hydraulic generator brake wind gate disassembly device, which includes a main unit 100, including a cylinder body 101, a lower piston 102 arranged inside the cylinder body 101, an upper piston 103 arranged above the lower piston 102, and a connecting piece 104 arranged on the upper piston 103; a disassembly unit 200, including a supporting assembly 201 arranged below the cylinder body 101, an upper connecting assembly 202 arranged on the supporting assembly 201, a power assembly 203 arranged on the upper connecting assembly 202, and a magnetic attraction assembly 204 arranged on the power assembly 203.

[0030] The main unit 100 has a double-piston three-chamber structure, and an oil chamber and two air chambers are arranged inside the cylinder 101. The upper piston 103 and the lower piston 102 are separated by an air chamber, and the two air chambers are used to receive compressed air. The inlet and outlet of the gas can be controlled by a pneumatic control valve, thereby controlling the movement of the upper piston 103 and the lower piston 102. The oil chamber is used to receive hydraulic oil, and the relative position and pressure of the upper piston 103 and the lower piston 102 can be controlled by controlling the inflow and outflow of the oil.

[0031] When in use, before disassembly, the pressure in the air cavity needs to be released through the pneumatic control valve to ensure that the two pistons can fit together safely, and then the power component 203 drives the magnetic suction component 204 to pull out the upper piston 103 and the lower piston 102 in turn.

[0032] Example 2, reference Figures 1 to 4 , which is the second embodiment of the present invention. This embodiment is different from the first embodiment in that: the supporting assembly 201 includes a base 201a arranged below the cylinder body 101, and six main limbs 201b arranged on the base 201a; wherein the six main limbs 201b are respectively located at the four corners of the top of the base 201a, and the middle part of the front and rear sides of the top of the base 201a, and the bottom of the main limb 201b is fixedly connected to the top of the base 201a.

[0033] Furthermore, a rectangular positioning groove 201c adapted to the cylinder body 101 is provided on the base 201a, and a circular positioning groove 201d is provided on the base 201a and on one side of the rectangular positioning groove 201c; wherein, the rectangular positioning groove 201c and the circular positioning groove 201d are respectively opened on the left and right sides of the top of the base 201a, and the rectangular positioning groove 201c is provided to place and fix the cylinder body 101, thereby facilitating subsequent disassembly work, and the circular positioning groove 201d is provided to place the upper piston 103 and the lower piston 102 pulled out from the cylinder body 101.

[0034] Furthermore, the circular positioning groove 201d matches the shape of the lower piston 102 and the upper piston 103 .

[0035] Furthermore, the upper connecting assembly 202 includes a top frame 202a arranged above the main limb 201b, a positioning sleeve 202b arranged on the main limb 201b, and a protruding rod 202c arranged on the top frame 202a and connected to the positioning sleeve 202b; wherein, the number of the positioning sleeves 202b and the protruding rod 202c is the same as the number of the main limb 201b, and the positions of the positioning sleeves 202b and the protruding rod 202c correspond to the positions of the main limb 201b, so that the top frame 202a is installed and connected to the main limb 201b as a supporting component of the entire device; the positioning sleeve 202b is fixedly connected to the top end of the main limb 201b, and the top frame 202a and the main limb 201b are connected via the positioning sleeve 202b and the protruding rod 202c.

[0036] When in use, place the main unit 100 on the rectangular positioning groove 201c, fix the cylinder body 101, then adjust the position of the power component 203 to make it correspond to the position of the cylinder body 101, and then use the magnetic suction component 204 to pull out the upper piston 103 and the lower piston 102 in turn.

[0037] The remaining structures are the same as those of Example 1.

[0038] Example 3, reference Figures 1 to 5 , which is the third embodiment of the present invention. This embodiment is different from the second embodiment in that: the power component 203 includes two connecting rail plates 203a arranged on the top frame 202a, and a positioning trolley 203b arranged on the two connecting rail plates 203a; wherein, the positioning trolley 203b is slidably connected between the tops of the two connecting rail plates 203a, and the length of the connecting rail plates 203a is the range of the positioning trolley 203b that can move. When the positioning trolley 203b moves to the two extreme positions of the connecting rail plates 203a, the magnetic suction component 204 carried thereon corresponds exactly to the two positions of the rectangular positioning groove 201c and the circular positioning groove 201d, respectively, to facilitate disassembly.

[0039] Furthermore, the power assembly 203 also includes a hydraulic pump 203c arranged on the positioning trolley 203b, an oil tank 203d arranged on the positioning trolley 203b, and a hydraulic cylinder 203e arranged on the positioning trolley 203b; wherein the hydraulic pump 203c, the oil tank 203d, the hydraulic cylinder 203e and the electromagnet 204a are all installed on the positioning trolley 203b, when the positioning trolley 203b travels to two extreme positions on the connecting rail plate 203a, the hydraulic pump 203c, the oil tank 203d, the hydraulic cylinder 203e and the electromagnet 204a are all installed on the positioning trolley 203b, and the hydraulic pump 203c, the oil tank 203d, the hydraulic cylinder 203e and the electromagnet 204a are all installed on the positioning trolley 203b. The hydraulic cylinder 203e and the magnetic assembly 204 are located just above the rectangular positioning groove 201c and the circular positioning groove 201d, so that when the upper piston 103 and the lower piston 102 are pulled out through the hydraulic cylinder 203e and the magnetic assembly 204, the center lines of the hydraulic cylinder 203e, the magnetic assembly 204, the upper piston 103, the lower piston 102 and the cylinder body 101 coincide with each other, thus avoiding the upper piston 103 and the lower piston 102 from getting stuck with the cylinder body 101 when being pulled out;

[0040] Since brute force is used for disassembly, the cylindricity of the upper piston 103, the lower piston 102 and the cylinder body 101 cannot be guaranteed, and the contact surface between the cylinder body 101 and the upper piston 103, the lower piston 102 will be damaged, so that the sealing of the main unit 100 cannot be guaranteed, which will lead to insufficient power during operation, affecting the braking effect and causing accidents of the hydro-turbine generator set. Therefore, by using this device to disassemble the main unit 100, the wind gate equipment can be protected from damage, ensuring good sealing of the oil chamber and the air chamber, thereby ensuring safe and effective operation of the unit.

[0041] Furthermore, the magnetic attraction component 204 includes an electromagnet 204a arranged on the hydraulic cylinder 203e, and a heat sink 204b arranged on the electromagnet 204a; wherein, the bottom end of the hydraulic cylinder 203e is fixedly connected to the top end of the electromagnet 204a, and the center lines of the hydraulic cylinder 203e and the electromagnet 204a coincide with each other. The upper piston 103 and the lower piston 102 are pulled out by the hydraulic cylinder 203e and the electromagnet 204a, which not only eliminates the need to install and disassemble the handle, greatly saving time, but also saves manpower and avoids the inconvenience and waste caused by multiple people exerting force together.

[0042] Furthermore, the number of heat sinks 204b is set to be several and evenly distributed on the outer surface of the electromagnet 204a; wherein, the electromagnet 204a is made of neodymium iron boron magnet steel, which has high magnetic properties and low residual magnetism, and the electromagnet 204a is subjected to surface treatment such as polishing and grinding, which helps to reduce the occurrence of residual magnetism and prevent the electromagnet 204a from affecting the release of the upper piston 103 and the lower piston 102 due to residual magnetism after the device is powered off;

[0043] Since the electromagnet 204a may overheat when powered on for a long time or working under high current, which may affect its performance and life, the electromagnet 204a can be kept at a suitable working temperature by providing a plurality of heat sinks 204b.

[0044] Furthermore, the connecting member 104 includes a bushing 104a arranged on the upper piston 103, and a retaining ring 104b arranged on the bushing 104a; wherein, the bushing 104a is connected to the top of the upper piston 103, and the retaining ring 104b is connected to the top of the bushing 104a. When the main unit 100 is disassembled, the retaining ring 104b and the bushing 104a are located at the top and can be directly taken out by hand. Then, when the disassembly work is performed, the retaining ring 104b and the bushing 104a are directly taken out by hand, and then the electromagnet 204a is used to disassemble the upper piston 103 and the lower piston 102 that are difficult to pull out.

[0045] When in use, before disassembly, the pressure in the air cavity is released through the pneumatic control valve to ensure that the upper piston 103 and the lower piston 102 are fitted together, and then the retaining ring 104b and the bushing 104a are directly taken out manually, and the cylinder body 101 is placed in the rectangular positioning groove 201c and fixed, and the positioning trolley 203b is controlled to move to the extreme position on the left side of the connecting rail plate 203a. At this time, the electromagnet 204a coincides with the center line of the upper piston 103, the lower piston 102, and the cylinder body 101, and the electromagnet 204a is controlled by the hydraulic cylinder 203e to move downward until it fits with the top of the upper piston 103. After the electromagnet 204a is turned on to adsorb the upper piston 103, the hydraulic cylinder 203e is controlled. Drive the electromagnet 204a to move upward to pull out the upper piston 103. After the upper piston 103 is completely pulled out of the cylinder body 101, control the positioning trolley 203b to move to the extreme position on the right side of the connecting rail plate 203a. At this time, the electromagnet 204a coincides with the center line of the circular positioning groove 201d. The hydraulic cylinder 203e drives the electromagnet 204a to move downward until the upper piston 103 is placed in the circular positioning groove 201d. Turn off the electromagnet 204a to release the upper piston 103. After the upper piston 103 is released, control the positioning trolley 203b to move back to the extreme position on the left side of the connecting rail plate 203a, repeat the above steps, and the lower piston 102 can be adsorbed and pulled out.

[0046] The remaining structure is the same as that of Example 2.

[0047] Importantly, it should be noted that the construction and arrangement of the present application shown in a plurality of different exemplary embodiments are only exemplary. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and proportion of various elements, and parameter values ​​(e.g., temperature, pressure, etc.), installation arrangement, use of materials, color, directional changes, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in the application. For example, the element shown as integrally formed can be composed of multiple parts or elements, the position of the element can be inverted or otherwise changed, and the nature or number or position of the discrete element can be changed or changed. Therefore, all such modifications are intended to be included in the scope of the present invention. The order or sequence of any process or method steps can be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure of performing the function described herein, and is not only structurally equivalent but also equivalent structure. Without departing from the scope of the present invention, other replacements, modifications, changes and omissions can be made in the design, operating conditions and arrangement of the exemplary embodiments. Therefore, the invention is not limited to a specific embodiment, but extends to numerous modifications still falling within the scope of the appended claims.

[0048] Additionally, in order to provide a concise description of exemplary embodiments, all features of an actual embodiment (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention) may not be described.

[0049] 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 hydraulic generator brake wind gate disassembly device, characterized in that: include, The main unit (100) comprises a cylinder (101), a lower piston (102) arranged inside the cylinder (101), an upper piston (103) arranged above the lower piston (102), and a connecting piece (104) arranged on the upper piston (103); The disassembly unit (200) comprises a support assembly (201) arranged below the cylinder body (101), an upper connection assembly (202) arranged on the support assembly (201), a power assembly (203) arranged on the upper connection assembly (202), and a magnetic attraction assembly (204) arranged on the power assembly (203).

2. The hydraulic generator brake wind gate disassembly device according to claim 1 is characterized in that: The support assembly (201) comprises a base (201a) arranged below the cylinder body (101), and six main limbs (201b) arranged on the base (201a).

3. The hydraulic generator brake wind gate disassembly device according to claim 2 is characterized in that: The base (201a) is provided with a rectangular positioning groove (201c) adapted to the cylinder body (101), and a circular positioning groove (201d) is provided on the base (201a) and located on one side of the rectangular positioning groove (201c).

4. The hydraulic generator brake wind gate disassembly device according to claim 3 is characterized in that: The circular positioning groove (201d) matches the shapes of the lower piston (102) and the upper piston (103).

5. The hydraulic generator brake wind gate disassembly device according to claim 4 is characterized in that: The upper connection assembly (202) comprises a top frame (202a) arranged above the main limb (201b), a positioning sleeve (202b) arranged on the main limb (201b), and a protruding rod (202c) arranged on the top frame (202a) and connected to the positioning sleeve (202b).

6. The hydraulic generator brake wind gate disassembly device according to claim 5 is characterized in that: The power assembly (203) comprises two connecting rail plates (203a) arranged on the top frame (202a), and a positioning trolley (203b) arranged on the two connecting rail plates (203a).

7. The hydraulic generator brake wind gate disassembly device according to claim 6 is characterized in that: The power assembly (203) further comprises a hydraulic pump (203c) arranged on the positioning trolley (203b), an oil tank (203d) arranged on the positioning trolley (203b), and a hydraulic cylinder (203e) arranged on the positioning trolley (203b).

8. The hydraulic generator brake wind gate disassembly device according to claim 7 is characterized in that: The magnetic attraction component (204) comprises an electromagnet (204a) arranged on the hydraulic cylinder (203e), and a heat sink (204b) arranged on the electromagnet (204a).

9. The hydraulic generator brake wind gate disassembly device according to claim 8 is characterized in that: The number of the heat sinks (204b) is several and they are evenly distributed on the outer surface of the electromagnet (204a).

10. The hydraulic generator brake wind gate disassembly device according to claim 9 is characterized in that: The connecting member (104) comprises a bushing (104a) arranged on the upper piston (103), and a retaining ring (104b) arranged on the bushing (104a).

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