Speed regulation sealing assembly for diesel generating set

Abstract

The utility model relates to a speed regulation sealing assembly for a diesel generating set, which comprises a ring body and a first sealing strip, the first sealing strip is arranged in the ring body, a second sealing strip is arranged in the ring body, the inner wall of the ring body is provided with a first arc-shaped groove, the inner wall of the ring body is provided with a second arc-shaped groove, and the first arc-shaped groove and the second arc-shaped groove are communicated with each other. The first sealing strip is embedded in the first arc-shaped groove, and the second sealing strip is embedded in the second arc-shaped groove. According to the sealing assembly, the first sealing strip and the second sealing strip are arranged in the ring body and combined with each other, the thickness of the second sealing strip is smaller than that of the first sealing strip, the inner ring diameter of the second sealing strip is smaller than that of the first sealing strip, and the extrusion block is installed on the side face of the second sealing strip, so that when the sealing assembly is used, the sealing effect is good; in this way, the deformation sealing failure time of the second sealing strip is prolonged, the internal sealing performance of the sealing assembly can be greatly improved, and the situation that the sealing performance is insufficient cannot occur easily.

Description

Technical Field

[0001] The utility model relates to the field of generator set sealing, in particular to a speed regulating sealing component for a diesel generator set. Background Art

[0002] A diesel generator set is a power supply device, generally referring to a generator set, which is a power generation device that uses diesel as fuel to operate. When the diesel is ignited, the mixed gas burns violently, the volume expands rapidly, and pushes the piston downward, which is called work, thereby realizing the function of power generation. At the same time, in the process of using the diesel generator set, a speed regulating sealing structure is required to seal the speed regulating mechanism.

[0003] In the process of realizing the present invention, it is found that at least the following problems exist in the prior art and have not been solved: 1. Traditional sealing components are usually simple seals or composite seals. Such sealing components have a single core sealing structure during use, so the continuous sealing time is not long. Once the seal is deformed or aged, the sealing component loses its sealing effect, and its overall sealing performance is not maintained for long enough; 2. When most sealing components need to be replaced with new ones after a long time, they can usually only be replaced as a whole, and individual corresponding components cannot be replaced. This results in a lot of waste during maintenance and is not convenient during maintenance operations. Therefore, it is necessary to design a new technical solution to solve this problem. Utility Model Content

[0004] The purpose of the utility model is to overcome the deficiencies of the prior art, adapt to actual needs, and provide a speed regulating seal assembly for a diesel generator set to solve the technical problem that the current sealing assembly has a short sealing time due to its single sealing structure.

[0005] In order to achieve the purpose of the utility model, the technical solution adopted by the utility model is: to design a speed regulating seal assembly for a diesel generator set, including a ring body and a first sealing strip, a first sealing strip is provided inside the ring body, a second sealing strip is provided inside the ring body, a first arc groove is opened on the inner wall of the ring body, a second arc groove is opened on the inner wall of the ring body, the first sealing strip is embedded in the inside of the first arc groove, the second sealing strip is embedded in the inside of the second arc groove, the inner ring diameter of the second sealing strip is smaller than the inner ring diameter of the first sealing strip, the thickness of the second sealing strip is smaller than the thickness of the first sealing strip, the side of the second sealing strip is fixedly connected to the extrusion block, the interior of the ring body, the first sealing strip and the second sealing strip pass through the threaded rod, and the external thread of the threaded rod is connected to the anti-loosening nut.

[0006] Preferably, the second sealing strip is located between the two first sealing strips, and the bottoms of the first sealing strip and the second sealing strip are both provided with positioning rods. A positioning groove is opened inside the ring body, and the positioning rod is embedded in the positioning groove. The positioning grooves are respectively located inside the first arc groove and the second arc groove.

[0007] Preferably, a through hole is provided inside the ring body, a first insertion hole is provided inside the first sealing strip, a second insertion hole is provided inside the second sealing strip, and the threaded rod passes through the through hole, the second insertion hole and the second insertion hole at the same time.

[0008] Preferably, a magnetic block is provided at the end surface of the ring body, a square groove is opened at the end surface of the ring body, and the magnetic block is embedded in the inside of the square groove.

[0009] Preferably, the side surface of the ring body is fixedly connected to a side plate, a double-headed screw with forward and reverse threads passes through the interior of the side plate, and both ends of the double-headed screw with forward and reverse threads are respectively threadedly connected to butterfly nuts.

[0010] Preferably, the extrusion blocks are symmetrically distributed, and the shape of the extrusion blocks is set to be an inverted trapezoid.

[0011] Compared with the prior art, the beneficial effects of the present invention are:

[0012] 1. The utility model provides a first sealing strip and a second sealing strip inside the ring body, the two are combined with each other, the thickness of the second sealing strip is smaller than the first sealing strip, the inner ring diameter of the second sealing strip is smaller than the first sealing strip, and an extrusion block is installed on the side of the second sealing strip. In this way, when the sealing assembly is used, when the first sealing strip and the second sealing strip simultaneously contact the sealed component and are subjected to extrusion deformation to provide a sealing effect, due to the thinner thickness and smaller inner ring diameter of the second sealing strip, the deformation of the second sealing strip caused by extrusion will be greater than the deformation of the first sealing strip. At the same time, an extrusion block is provided on the side of the second sealing strip. As the second sealing strip is extruded and deformed, the extrusion block will retract and abut against the inner wall of the ring body, thereby in turn providing a reverse supporting force for the second sealing strip, thereby prolonging the time for the deformation and sealing failure of the second sealing strip. In this way, under the mutual combination of the first sealing strip and the second sealing strip, the internal sealing performance of the sealing assembly can be greatly improved, so that the sealing assembly has a longer sealing time and will not easily suffer from insufficient sealing performance.

[0013] 2. The utility model provides independently detachable first and second sealing strips inside the ring body, respectively opens a first insertion hole and a second insertion hole on the surfaces of the first and second sealing strips, and opens a through hole inside the ring body, and simultaneously provides a positioning rod at the bottom of the first and second sealing strips, combined with the positioning groove opened inside the ring body, so that in the process of using the sealing assembly, after a long period of use, when the first or second sealing strip is deformed or worn, resulting in a decrease in sealing performance, it can be disassembled separately and targeted to replace the sealing strip with the decreased sealing performance, so there is no need to replace the entire sealing strip, which effectively reduces the waste during maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the first sealing strip structure of the utility model;

[0016] Figure 3 is a schematic cross-sectional view of the ring body of the present invention;

[0017] Figure 4 This is a schematic diagram of the structure of the second sealing strip of the utility model;

[0018] Figure 5 This is a schematic diagram of the structure of the double-headed screw with positive and negative threads of the present invention.

[0019] In the figure: 1. Ring body; 2. Side panel; 3. Butterfly nut; 4. Double-ended screw with forward and reverse threads; 5. Magnetic block; 6. Square groove; 7. First sealing strip; 8. Second sealing strip; 9. Extrusion block; 10. First arcuate groove; 11. Second arcuate groove; 12. Through hole; 13. Threaded rod; 14. Anti-loosening nut; 15. First socket; 16. Second socket; 17. Positioning rod; 18. Positioning groove. DETAILED DESCRIPTION

[0020] The present invention is further described below with reference to the accompanying drawings and embodiments:

[0021] Example 1: A speed regulating seal assembly for a diesel generator set, see Figures 1 to 5, including a ring body 1 and a first sealing strip 7, the interior of the ring body 1 is provided with a first sealing strip 7, the interior of the ring body 1 is provided with a second sealing strip 8, the inner wall of the ring body 1 is provided with a first arc groove 10, the inner wall of the ring body 1 is provided with a second arc groove 11, the first sealing strip 7 is embedded in the interior of the first arc groove 10, the second sealing strip 8 is embedded in the interior of the second arc groove 11, the inner ring diameter of the second sealing strip 8 is smaller than the inner ring diameter of the first sealing strip 7, the thickness of the second sealing strip 8 is smaller than the thickness of the first sealing strip 7, the side of the second sealing strip 8 is fixedly connected to the extrusion block 9, the interior of the ring body 1, the first sealing strip 7 and the second sealing strip 8 passes through the threaded rod 13, because the threaded rod 13 is connected in a through-type manner to the ring body 1, the first sealing strip 7 and the second sealing strip 8, the three can be well connected and fixed together, and the stability is strong, the external threaded connection nut 14 of the threaded rod 13 is threadedly connected to the anti-loosening nut 14, by providing the first sealing strip 7 and the second sealing strip 8 in the interior of the ring body 1 7, and the second sealing strip 8 is thinner than the first sealing strip 7, and the inner ring diameter of the second sealing strip 8 is smaller than the first sealing strip 7. At the same time, an extrusion block 9 is installed on the side of the second sealing strip 8. In this way, when the first sealing strip 7 and the second sealing strip 8 are in contact with the sealed component at the same time and are subjected to extrusion deformation to provide a sealing effect, due to the thinner thickness and smaller inner ring diameter of the second sealing strip 8, the deformation of the second sealing strip 8 caused by extrusion will be greater than the deformation degree of the first sealing strip 7 caused by extrusion. At the same time, an extrusion block 9 is provided on the side of the second sealing strip 8. As the second sealing strip 8 is extruded and deformed, the extrusion block 9 will retract and rest against the inner wall of the ring body 1, thereby in turn providing a reverse support force for the second sealing strip 8, thereby prolonging the time of deformation and sealing failure of the second sealing strip 8. In this way, under the combination of the first sealing strip 7 and the second sealing strip 8, the internal sealing performance of the sealing assembly can be greatly improved.

[0022] For details, see Figures 1 to 5 The second sealing strip 8 is located between the two first sealing strips 7. A positioning rod 17 is provided at the bottom of the first sealing strip 7 and the second sealing strip 8. A positioning groove 18 is provided inside the ring body 1. The positioning rod 17 is embedded in the positioning groove 18. The positioning grooves 18 are respectively located inside the first arc-shaped groove 10 and the second arc-shaped groove 11. By providing the positioning rod 17 and combining the positioning groove 18 provided inside the ring body 1, it is possible to facilitate positioning when installing a new sealing strip, making it convenient for the staff to install the sealing strip accurately and quickly.

[0023] For further information, see Figures 1 to 5A through hole 12 is provided inside the ring body 1, a first insertion hole 15 is provided inside the first sealing strip 7, a second insertion hole 16 is provided inside the second sealing strip 8, and the threaded rod 13 passes through the through hole 12, the second insertion hole 16 and the second insertion hole 16 at the same time. Since a locking nut 14 is used to fix the outside of the threaded rod 13, the sealing assembly can be prevented from affecting the locking force of the nut due to vibration force during application, and its anti-loosening effect is better.

[0024] It is worth noting that, see Figures 1 to 5 A magnetic block 5 is provided at the end face of the ring body 1, and a square groove 6 is opened at the end face of the ring body 1. The magnetic block 5 is embedded in the inside of the square groove 6. Since the end faces of the two ring bodies 1 are provided with magnetic blocks 5, they can be initially fixed together when spliced, which makes it convenient for the operator to tighten the butterfly nut 3 on the positive and negative double-headed screw 4, and the operation is relatively fast.

[0025] It is worth noting that see Figures 1 to 5 The side of the ring body 1 is fixedly connected to the side plate 2, and the interior of the side plate 2 passes through the double-headed screw 4 with positive and negative threads. The two ends of the double-headed screw 4 are respectively threadedly connected to the butterfly nuts 3. Since the butterfly nuts 3 are used for fixing, the operator does not need to use tools such as wrenches when loading and unloading, which is very practical.

[0026] It is worth mentioning that see Figures 1 to 5 The extrusion blocks 9 are symmetrically distributed, and the shape of the extrusion blocks 9 is set to an inverted trapezoid. The inverted trapezoidal extrusion blocks 9 can make the small head of the extrusion blocks 9 contact the inner wall of the ring body 1 first. As the extrusion blocks 9 are continuously pressurized, the extrusion block 9 at the large end is directly connected to the side of the second sealing strip 8, so it can provide strong supporting force, thereby maintaining the efficient sealing effect of the second sealing strip 8.

[0027] When using the speed regulating seal assembly, it is necessary to first install the seal assembly on the speed regulating structure of the diesel generator set, such as the connection of the speed regulating rod, and respectively sleeve the two sets of ring bodies 1 on the speed regulating rod, and align the ring bodies 1 together. At the same time, since a magnetic block 5 is provided at the end face of the ring body 1, the ring bodies 1 that are docked together can be well connected together due to magnetic adsorption, and then the positive and negative double-headed screw rods 4 are passed through the holes on the side plate 2, and then the butterfly nut 3 is screwed into the outside of the positive and negative double-headed screw rods 4. In this way, the installation of the seal assembly can be completed. At the same time, when the seal assembly takes effect, a first sealing strip 7 and a second sealing strip 8 are provided inside the ring body 1, and the two can be combined with each other. , wherein the thickness of the second sealing strip 8 is smaller than that of the first sealing strip 7, and the inner ring diameter of the second sealing strip 8 is smaller than that of the first sealing strip 7, and an extrusion block 9 is installed on the side of the second sealing strip 8, so that when the first sealing strip 7 and the second sealing strip 8 are in contact with the sealed part at the same time and the sealing effect is provided by the extrusion deformation, due to the thinner thickness and smaller inner ring diameter of the second sealing strip 8, the deformation of the second sealing strip 8 caused by the extrusion will be greater than the deformation degree caused by the extrusion of the first sealing strip 7, and at the same time, an extrusion block 9 is provided on the side of the second sealing strip 8, so that as the second sealing strip 8 is extruded and deformed, the extrusion block 9 will retract and abut against the inner wall of the ring body 1, thereby in turn providing a reverse pressure for the second sealing strip 8 The supporting force of the second sealing strip 8 is used to prolong the time of deformation and sealing failure of the second sealing strip 8. In this way, under the mutual combination of the first sealing strip 7 and the second sealing strip 8, the internal sealing performance of the sealing component can be greatly improved, so that the sealing component has a long sealing time and the sealing performance is not easily insufficient. Finally, when the sealing component has been used for a long time and loaded and unloaded many times, if the first sealing strip 7 or the second sealing strip 8 is worn and needs to be replaced, it can be disassembled separately to replace the sealing strip with reduced sealing performance. The first and second holes 15 and 16 are respectively opened on the surfaces of the first and second sealing strips 7 and 8, and the sealing strips 15 and 16 are respectively opened on the surfaces of the first and second sealing strips 8. A through hole 12 is provided inside the body 1, and the first plug hole 15, the second plug hole 16 and the inside of the through hole 12 pass through the threaded rod 13 at the same time. It is only necessary to unscrew the anti-loosening nut 14 on the outside of the threaded rod 13 to pull out the threaded rod 13, and then the first sealing strip 7 or the second sealing strip 8 can be removed separately. At the same time, since a positioning rod 17 is provided at the bottom of the first sealing strip 7 and the second sealing strip 8, combined with the positioning groove 18 provided inside the ring body 1, it is convenient to position the new sealing strip when installing it, so that the staff can install the sealing strip accurately and quickly, so that there is no need to replace the entire sealing strip during maintenance and replacement, which effectively reduces the waste during maintenance.

[0028] In addition, the components designed in this utility model are all universal standard parts or components known to technical personnel in this field. Their structures and principles can be known to technical personnel through technical manuals or through conventional experimental methods. They can be fully implemented by technical personnel in this field. Needless to say, the content protected by this utility model does not involve improvements to internal structures and methods.

[0029] The embodiments disclosed in the present invention are preferred embodiments, but are not limited to them. Ordinary technicians in this field can easily understand the spirit of the present invention based on the above embodiments and make different extensions and changes. As long as they do not deviate from the spirit of the present invention, they are all within the scope of protection of the present invention.

Claims

1. A speed regulating seal assembly for a diesel generator set, comprising a ring body (1) and a first sealing strip (7), characterized in that: A first sealing strip (7) is provided inside the ring body (1), and a second sealing strip (8) is provided inside the ring body (1). A first arc groove (10) is provided on the inner wall of the ring body (1), and a second arc groove (11) is provided on the inner wall of the ring body (1). The first sealing strip (7) is embedded in the first arc groove (10), and the second sealing strip (8) is embedded in the second arc groove (11). The inner ring diameter of the second sealing strip (8) is smaller than the inner ring diameter of the first sealing strip (7), and the thickness of the second sealing strip (8) is smaller than the thickness of the first sealing strip (7). The side of the second sealing strip (8) is fixedly connected to the extrusion block (9). The interiors of the ring body (1), the first sealing strip (7) and the second sealing strip (8) pass through the threaded rod (13), and the outer thread of the threaded rod (13) is connected to the anti-loosening nut (14).

2. The speed regulating seal assembly for a diesel generator set according to claim 1, wherein: The second sealing strip (8) is located between the two first sealing strips (7), and a positioning rod (17) is provided at the bottom of each of the first sealing strip (7) and the second sealing strip (8). A positioning groove (18) is provided inside the ring body (1), and the positioning rod (17) is embedded in the positioning groove (18). The positioning grooves (18) are respectively located inside the first arc groove (10) and the second arc groove (11).

3. The speed regulating seal assembly for a diesel generator set according to claim 1, wherein: A through hole (12) is provided inside the ring body (1), a first insertion hole (15) is provided inside the first sealing strip (7), a second insertion hole (16) is provided inside the second sealing strip (8), and the threaded rod (13) simultaneously passes through the through hole (12), the second insertion hole (16), and the second insertion hole (16).

4. The speed regulating seal assembly for a diesel generator set according to claim 1, wherein: A magnetic block (5) is provided at the end surface of the ring body (1), a square groove (6) is provided at the end surface of the ring body (1), and the magnetic block (5) is embedded in the interior of the square groove (6).

5. The speed regulating seal assembly for a diesel generator set according to claim 1, wherein: The side surface of the ring body (1) is fixedly connected to the side plate (2), the interior of the side plate (2) is penetrated by a double-headed screw (4), and both ends of the double-headed screw (4) are respectively threadedly connected to butterfly nuts (3).

6. The speed regulating seal assembly for a diesel generator set according to claim 1, wherein: The extrusion blocks (9) are symmetrically distributed, and the shape of the extrusion blocks (9) is set to be an inverted trapezoid.

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