Sealing pull rod device
By designing a sealing pull rod device including an adjustable long spindle, a sealing sleeve, a thrust member and an elastic member, the problem of difficult maintenance of the sealing performance in the face of temperature and pressure changes is solved, and high efficiency and stability are achieved sealing performance and extended service life.
Patent Information
- Application Number
- CN202311009246.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2023-08-11
- Publication Date
- 2025-02-18
AI Technical Summary
When traditional sealing pull rod devices face changes in temperature and pressure, the sealing performance is difficult to maintain, and the design is complex, the material replacement is difficult, and the life cycle is short, which cannot meet the high sealing requirements of modern industrial equipment.
A sealing tie rod device including a spindle, a first locking device, a sealing sleeve, a base, a thrust member and an elastic member is designed. The spindle is adjustable to suit workpieces of different sizes or shapes, and the thrust and elastic components are used to compensate for internal pressure changes and ensure sealing performance.
Through the adjustable length design of the spindle, the production efficiency and sealing performance of the equipment are improved, the equipment footprint and transformation cost are reduced, the service life is extended, and the sealing state is stabilized through the compensation effect of elastic components.
Smart Images
Figure CN119467524A_ABST
Abstract
Description
Technical Field
[0001] The present application relates to a sealing rod device, and in particular to a sealing rod device applied to mechanical equipment and industrial systems with high sealing requirements. Background Art
[0002] Sealing rod devices are mainly used in high-sealing occasions. With the rapid development of modern industrial technology, the sealing requirements for mechanical equipment and industrial systems are getting higher and higher, and the functions of traditional sealing methods can no longer meet the needs. First, the buffer zone of the original seal has a relatively narrow adjustable range as the adaptive temperature and pressure change, and it is labor-intensive and takes a long time to adjust, with the risk of leakage and seepage. Second, now high-precision machining and cutting technology can meet the design of new sealing rods. When used in them, the rods can be quickly adjusted to save equipment and operation and maintenance costs. Third, the original sealing rod device has to be designed to achieve the same function, and it is more complicated, unable to effectively replace materials, and has a short life cycle.
[0003] Therefore, a sealing rod device with better sealing performance, durability and adaptability to a wider range of application scenarios is a product that is urgently needed to be designed. Unfortunately, there is currently no sealing rod device that can meet many requirements at the same time. Summary of the invention
[0004] In view of the above problems, the present application provides a sealing pull rod device, which can at least solve the above technical problems.
[0005] According to a first aspect of the present application, a sealing rod device is provided, comprising:
[0006] Spindle;
[0007] A first locking device, fixedly disposed on the first end of the main shaft;
[0008] A sealing sleeve, sleeved on the main shaft, with a first end abutting against the first locking device;
[0009] A base, sleeved on the base and arranged at the second end of the sealing sleeve;
[0010] A thrust member, fixedly disposed at a position close to the second end of the main shaft;
[0011] The elastic component is sleeved on the main shaft, located between the base and the thrust piece, and abuts against the base and the thrust piece respectively.
[0012] In some optional embodiments, the main shaft includes at least an outer shaft and an inner shaft, the inner shaft is inserted into the outer shaft, and the inner shaft can move relative to the outer shaft along the axial direction.
[0013] In some optional embodiments, the inner shaft is inserted into the outer shaft, comprising:
[0014] The outer shaft has a cavity for accommodating the inner shaft, an accommodating groove is axially arranged on the inner wall of the cavity, and a protrusion corresponding to the accommodating groove is axially arranged on the outer side of the inner shaft; the protrusion is inserted into the accommodating groove, so that the inner shaft is inserted into the outer shaft.
[0015] In some optional embodiments, the outer shaft and the inner shaft are further provided with radial insertion holes with the same inner diameter;
[0016] The inner shaft and the outer shaft move relative to each other in the axial direction. After the positions of the insertion holes of the outer shaft and the inner shaft are completely matched, a fixing pin penetrates through the outer shaft and the inner shaft to fix the outer shaft and the inner shaft relatively.
[0017] In some optional embodiments, the receiving groove is a dovetail groove.
[0018] In some optional embodiments, the device further comprises:
[0019] The pressure seat is sleeved on the main shaft and located between the thrust piece and the elastic component.
[0020] In some optional embodiments, the device further comprises:
[0021] The second locking device is fixedly arranged at a position close to the second end of the main shaft and is located between the thrust member and the second end of the main shaft.
[0022] In some optional embodiments, the device further comprises:
[0023] The alarm is arranged at the second end of the main shaft, and outputs an alarm message when it detects that the second locking device has been displaced, or a relative displacement has occurred between the alarm and the main shaft.
[0024] In some optional embodiments, the first locking device is fixedly disposed on the first end of the outer shaft.
[0025] In some optional embodiments, a limiting groove is provided in the inner cavity of the first end of the outer shaft; a limiting structure matching the limiting groove is provided on the first locking device; and the first locking device is fixed by matching the limiting groove and the limiting structure.
[0026] The technical solution of the embodiment of the present application, by setting the spindle as a structure with adjustable axial length, the elongated and contracted spindle can quickly adjust the working distance of the equipment by adapting to workpieces of different sizes or shapes, so that the equipment can complete more processing tasks, thereby improving production efficiency, reducing the floor space occupied by the equipment, and reducing the cost of equipment modification or replacement. And by setting thrust pieces and elastic components, the sealing state changes caused by changes in internal pressure can be compensated to a certain extent after the spindle length is adjusted. By setting fasteners at both ends, the axial displacement or axial vibration of the spindle can be avoided, the axial torque can be resolved, stable operation can be ensured, and the service life can be increased.
[0027] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS
[0028] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present application. Moreover, the same reference numerals are used throughout the drawings to represent the same components. In the drawings:
[0029] Figure 1 A schematic diagram of the exploded structure of a sealing pull rod device provided in one embodiment of the present application is shown;
[0030] Figure 2 A schematic cross-sectional structure diagram of a main shaft provided in one embodiment of the present application is shown. DETAILED DESCRIPTION
[0031] The following embodiments of the technical solution of the present application are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application.
[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" in the specification and claims of this application and the above-mentioned figure descriptions and any variations thereof are intended to cover non-exclusive inclusions.
[0033] In the description of the embodiments of the present application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "multiple" is more than two, unless otherwise clearly and specifically defined.
[0034] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.
[0035] In the description of the embodiments of the present application, the term "and / or" is only a description of the association relationship of the associated objects, indicating that there may be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.
[0036] In the description of the embodiments of the present application, the term "multiple" refers to more than two (including two). Similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces).
[0037] In the description of the embodiments of the present application, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the embodiments of the present application.
[0038] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.
[0039] Figure 1 FIG. 1 shows a schematic diagram of the exploded structure of a sealing rod device provided in an embodiment of the present application. Figure 1 As shown, the sealing rod device of the embodiment of the present application includes:
[0040] Spindle 2;
[0041] The first locking device 3 is fixedly arranged at the first end of the main shaft 2; the first locking device 3 can adopt any structure that can be fixed to the end of the main shaft 2, as long as it can be firmly connected to the first end of the main shaft 2 to limit the sealing sleeve 4.
[0042] The sealing sleeve 4 is sleeved on the main shaft 2, and the first end thereof abuts against the first locking device 3; the sealing sleeve 4 is a cylindrical structure and can be sleeved on the main shaft 2. The sealing sleeve 4 is preferably made of insulating material.
[0043] The base 5 is sleeved on the main shaft 2 and is arranged at the second end of the sealing sleeve 4 to provide elastic limitation for the elastic component 6; in the embodiment of the present application, by adjusting the main shaft 2 so that the main shaft 2 is in an extended or compressed state, the length of the sealing insulating sleeve 4 can be adjusted, thereby adjusting the length between the base 5 and the first locking device 3.
[0044] A thrust member 8, fixedly arranged at a position close to the second end of the main shaft, and the thrust member 8 can be a thrust bearing;
[0045] The elastic component 6 is sleeved on the base 5, located between the base and the thrust member, and abuts against the base and the thrust member respectively. When the internal pressure of the extrusion component between the first end and the second end of the main shaft 2 changes due to environmental factors or changes in equipment parameters, the elastic component 6 can be adjusted to produce deformation so that the sealing performance of the sealing structure is not affected.
[0046] As an example, the elastic component 6 can be a spring such as a compression spring.
[0047] Figure 2 FIG. 4 shows a schematic cross-sectional structure diagram of a main shaft provided in an embodiment of the present application. Figure 2 As shown, the main shaft of the embodiment of the present application at least includes an outer shaft 12 and an inner shaft 11, wherein the inner shaft 11 is inserted into the outer shaft 12, and the inner shaft 11 can move relative to the outer shaft along the axial direction.
[0048] Specifically, the outer shaft 12 has a cavity for accommodating the inner shaft 11, and an accommodating groove is axially arranged on the inner wall of the cavity, and a protrusion corresponding to the accommodating groove is axially arranged on the outer side of the inner shaft 11; the protrusion is inserted into the accommodating groove, so that the inner shaft 11 is inserted into the outer shaft 12. As an example, the accommodating groove can be a dovetail groove. The accommodating groove can also be a general groove, as long as it can prevent the outer shaft 12 and the inner shaft 11 from rotating relative to each other and can fix the relative position between the outer shaft 12 and the inner shaft 11.
[0049] like Figure 2 As shown, the outer shaft and the inner shaft are also provided with radial insertion holes with the same inner diameter; the inner shaft 11 and the outer shaft 12 move relative to each other in the axial direction, and after the positions of the insertion holes of the outer shaft 12 and the inner shaft 11 are completely matched, a fixing pin 13 penetrates the outer shaft 12 and the inner shaft 11, so that the outer shaft 12 and the inner shaft 11 are relatively fixed.
[0050] like Figure 1 As shown, the structure in which the relative positions of the outer shaft 12 and the inner shaft 11 of the embodiment of the present application can be adjusted can be applied only to Figure 1 For the left part in the figure, the shaft structure of the connecting part of the fixed component on the right side of the figure can be a conventional shaft structure.
[0051] In the present application embodiment, Figure 1 As shown, the sealing rod device of the embodiment of the present application may also include:
[0052] The pressure seat 7 is sleeved on the main shaft 2 and is located between the thrust member 8 and the elastic component 6 .
[0053] In the present application embodiment, Figure 1 As shown, the sealing rod device of the embodiment of the present application may also include:
[0054] The second locking device 9 is fixedly arranged at a position close to the second end of the main shaft 2 and is located between the thrust member 8 and the second end of the main shaft 2 . Figure 1 In the figure, the second end of the main shaft 2 is the end on the right side of the figure, and the first end of the main shaft 2 is the end on the left side of the figure.
[0055] In the present application embodiment, Figure 1 As shown, the sealing rod device of the embodiment of the present application may also include:
[0056] The alarm device 10 is arranged at the second end of the main shaft 2, and outputs an alarm message when it detects that the second locking device 9 is displaced, or a relative displacement is generated between the alarm device 10 and the main shaft 2.
[0057] like Figure 1As shown, the first locking device 3 of the embodiment of the present application is fixedly disposed at the first end of the outer shaft 12 .
[0058] In some optional embodiments, a limiting groove 1 is provided in the inner cavity of the first end of the outer shaft 12; a limiting structure matching the limiting groove 1 is provided on the first locking device 3; and the first locking device 3 is fixed by matching the limiting groove 1 and the limiting structure.
[0059] like Figure 2 As shown, the main shaft 2 is formed by a split structure of an inner shaft 11 and an outer shaft 12. The inner shaft 11 and the outer shaft 12 can also be nested by an inner slide rail and an outer slide rail to achieve the extension and contraction of the main shaft in the length direction. Figure 2 The nested groove structures shown realize axial sliding. The inner shaft 11 and the outer shaft 12 have counterbores at equal intervals, and are fixed by the fixing pin 13 to prevent the inner shaft from coming out during extrusion sealing. The elongated and retracted pull rod spindle can quickly adjust the working distance of the equipment by adapting to workpieces of different sizes or shapes, so that the sealing pull rod device of the embodiment of the present application can complete more processing tasks, thereby improving production efficiency, reducing the equipment footprint, and reducing the cost of equipment modification or replacement.
[0060] In the embodiment of the present application, the fixing pin 13 can provide a custom countersunk design for connecting the inner shaft 11 and the outer shaft 12, which is convenient for applying insulation, anti-corrosion dressings and sleeve protection to the exposed area of the outer shaft.
[0061] In the embodiment of the present application, the sealing sleeve 4 may also include an insulating sleeve and an insulating gasket, which may be applied to the operation scenario of extruding live components. According to the use scenarios of the main shaft 2 and other components, the main material may be replaced with magnetic, non-magnetic, conductive, non-conductive, and anti-corrosion materials. The sealing sleeve 4 is not limited to the use of a sleeve or an insulating coating.
[0062] The limiting hole 1 serves as an inner limit of the main shaft, which can prevent the first locking device 3 from slipping off the main shaft 2. In a preferred embodiment, the first locking device 3 also includes an external fastener. The external fastener of the first locking device 3 can be set with an outer limit to prevent the fastener from slipping off the main shaft 2, thereby preventing the sealing pull rod device from falling off due to long-term vibration in a vibration environment, resulting in sealing leakage.
[0063] When the extrusion element changes due to parameters such as ambient temperature, medium characteristics, internal pressure, operating status, jitter, the pressure generated by the medium and the expansion and contraction of the local sealing material, the sealing extrusion force provided by the pull rod needs to be buffered and adjusted accordingly. The embodiment of the present application can compensate for the changes in the sealing state caused by the changes in the internal pressure to a certain extent by setting a base 5 and an elastic component 6.
[0064] As the internal pressure floating range increases due to factors such as the number of extrusion elements, the number of bases 5 and elastic components 6 can be increased in multiple directions along the axial direction of the main shaft 2 to increase the compensation range and ensure safe and reliable sealing.
[0065] In the embodiment of the present application, by providing the thrust piece 8, the axial displacement or axial vibration of the sealing rod device in the embodiment of the present application can be avoided, thereby relieving the axial torque, ensuring the stable operation of the sealing rod device and improving its service life.
[0066] The second locking device 9 is a movable end locking device of the sealing rod device of the embodiment of the present application, which can prevent the sealing extrusion force from being released due to pressure caused by environmental factors.
[0067] In the embodiment of the present application, an alarm 10 is also provided at the second end of the main shaft 2, which is installed after the high-strength locking device. When the locking device is loose, an early warning prompt can be issued to adjust the operation of the device in time.
[0068] The sealing rod device of the embodiment of the present application can change the size of the main shaft and related parts according to the required pre-tightening force, and can change the pre-tightening effect. It is also possible to use multiple groups of the same type of rod devices to achieve the required sealing pressure and uniform sealing distribution. The device is simple to operate and is easier to combine, install and adjust in multiple scenarios.
[0069] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should all be included in the scope of the claims and specification of the present application. In particular, as long as there is no structural conflict, the various technical features mentioned in the various embodiments can be combined in any way. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.
Claims
1. A sealing rod device, characterized in that: The device comprises: Spindle; A first locking device, fixedly disposed on the first end of the main shaft; A sealing sleeve, sleeved on the main shaft, with a first end abutting against the first locking device; A base, sleeved on the main shaft and arranged at the second end of the sealing sleeve; A thrust member, fixedly disposed at a position close to the second end of the main shaft; The elastic component is sleeved on the base, located between the base and the thrust piece, and abuts against the base and the thrust piece respectively.
2. The sealing rod device according to claim 1, characterized in that: The main shaft at least includes an outer shaft and an inner shaft. The inner shaft is inserted into the outer shaft, and the inner shaft can move relative to the outer shaft along the axial direction.
3. The sealing rod device according to claim 2, characterized in that: The inner shaft is inserted into the outer shaft, and comprises: The outer shaft has a cavity for accommodating the inner shaft, an accommodating groove is axially arranged on the inner wall of the cavity, and a protrusion corresponding to the accommodating groove is axially arranged on the outer side of the inner shaft; the protrusion is inserted into the accommodating groove, so that the inner shaft is inserted into the outer shaft.
4. The sealing rod device according to claim 3, characterized in that: The outer shaft and the inner shaft are also provided with radial insertion holes with the same inner diameter; The inner shaft and the outer shaft move relative to each other in the axial direction. After the positions of the insertion holes of the outer shaft and the inner shaft are completely matched, a fixing pin penetrates through the outer shaft and the inner shaft to fix the outer shaft and the inner shaft relatively.
5. The sealing rod device according to claim 3, characterized in that: The accommodating groove is a dovetail groove.
6. The sealing rod device according to any one of claims 1 to 5, characterized in that: The device also includes: The pressure seat is sleeved on the main shaft and located between the thrust piece and the elastic component.
7. The sealing rod device according to any one of claims 1 to 5, characterized in that: The device also includes: The second locking device is fixedly arranged at a position close to the second end of the main shaft and is located between the thrust member and the second end of the main shaft.
8. The sealing rod device according to claim 7, characterized in that: The device also includes: The alarm is arranged at the second end of the main shaft, and outputs an alarm message when it detects that the second locking device has been displaced, or a relative displacement has occurred between the alarm and the main shaft.
9. The sealing rod device according to any one of claims 1 to 5, characterized in that: The first locking device is fixedly disposed on the first end of the outer shaft.
10. The sealing rod device according to claim 9, characterized in that: A limiting groove is provided in the inner cavity of the first end of the outer shaft; a limiting structure matching the limiting groove is provided on the first locking device; and the first locking device is fixed by matching the limiting groove and the limiting structure.