CN212779826U - Measuring device for overall rigidity value of universal disc spring assembly - Google Patents
Measuring device for overall rigidity value of universal disc spring assembly Download PDFInfo
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- CN212779826U CN212779826U CN202021497372.7U CN202021497372U CN212779826U CN 212779826 U CN212779826 U CN 212779826U CN 202021497372 U CN202021497372 U CN 202021497372U CN 212779826 U CN212779826 U CN 212779826U
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Abstract
The utility model discloses a measuring device for the overall rigidity value of a universal disc spring assembly, which comprises a base, a fixed supporting plate fixed on the base, an adjusting supporting plate in sliding fit with the base and a positioning pull rod, wherein the positioning pull rod passes through the fixed supporting plate and the adjusting supporting plate and is respectively matched with the fixed supporting plate and the adjusting supporting plate through a positioning nut; a hydraulic push rod is arranged on the fixed supporting plate, the end part of the hydraulic push rod is matched with the top of the disc spring assembly, and a sensing system is arranged between the hydraulic push rod and the disc spring assembly; the adjusting support plate is provided with a U-shaped opening matched with the pull rod of the disc spring component; the disc spring fixing device further comprises a supporting block assembly used for supporting the disc spring assembly, and the supporting block assembly is connected to the base in a sliding mode. The utility model discloses can realize supporting the location to the dish spring subassembly of different specifications, effectively improve the product quality of dish spring balanced type corrugated expansion ware. The device structure is comparatively simple, reduces manufacturing cost.
Description
Technical Field
The utility model relates to a compensator test technical field, concretely relates to measuring device of general type dish spring subassembly global rigidity value carries out the measurement and the precompression of global rigidity value to the dish spring subassembly of the balanced type bellows compensator of dish spring for high-pressure combined electrical apparatus.
Background
The disc spring balance type corrugated pipe compensator balances blind plate force generated by the internal pressure of a pipeline cylinder by pre-compressing the disc spring assembly. The disc spring component comprises a disc spring, a disc spring barrel, a barrel seat, a pull rod, a nut, a stop block, a cap and the like (see the metal corrugated pipe compensator 4.3 and figure 3 for GB/T30092-2013 high-voltage combined electrical apparatus in detail). When the pipeline temperature compensation is carried out, when the temperature is reduced, the pipeline cylinder body is contracted, the corrugated pipe is stretched, and the disc spring is compressed; conversely, when the temperature rises, the pipe barrel expands, the corrugated pipe is compressed, and the compressed disc spring is released. Because the stiffness of the bellows is not consistent with the stiffness of the disc spring barrel assembly, the disc spring bellows compensator is an incomplete force balancing structure when the pipeline runs. Although the deformation of the disc spring in the disc spring balance type corrugated pipe compensator offsets partial gas blind plate force in the cylinder body, the requirement on the support still exists, and if the rigidity of the disc spring is too large, great hidden danger can be brought to the safe operation of a pipeline. The disc spring balance type corrugated pipe compensator is usually applied to occasions with limited radial space of a bus support due to the structural characteristics of the disc spring balance type corrugated pipe compensator. However, the stiffness of the disc spring is affected by the processing technology, so that the deviation between the actual stiffness and the theoretical value often occurs. In addition, when the disc spring assembly is actually operated, friction force can be generated between the disc spring pieces and the inner guide rod and between the disc spring pieces and the outer disc spring barrel and between the adjacent disc spring pieces in the deformation process; in addition, due to the influence of coaxiality when the disc spring is installed, the disc spring is not uniformly deformed, and the integral rigidity of the disc spring assembly is also influenced. By combining the multiple influence factors, the problem that the deviation between the actual operation rigidity value of the disc spring assembly and the theoretical calculation is large is often caused, and the design of the disc spring balance type corrugated pipe compensator is difficult. When the prior art is designed, a large safety factor is reserved usually, and is about 30%, so that the waste of materials is caused, and the design stress of the bracket and the improvement of the manufacturing cost are increased. In the past, for detecting the rigidity value of the disc spring assembly, the rigidity value of the disc spring assembly is usually reversely pushed by utilizing multiple times of test data of a corrugated pipe with the disc spring assembly; and when the dish spring subassembly precompresses, often first carry out the precompression with dish spring subassembly theoretical displacement earlier, utilize the bellows to fill into the gas of suitable pressure again, debug the dish spring subassembly and fix a position, production efficiency is extremely low. In this respect, the prior art is mainly embodied in: patent 1. (ZL 201920663424.4), patent 2. (201811132091.9), patent 3. (201910541319.8). Patent 1 can only realize detecting the elasticity coefficient of monolithic dish reed, can not realize measuring the dish spring subassembly that many leaf dish spring constitutes. Patent 2 is through setting up the sensor between dish spring seat and dish spring on current part basis, realizes the dual-purpose of dish spring atress and sensor monitoring, but its application field is limited. In addition, because the axial direction of the disc spring is limited by the original part, the axial guide length is limited, the disc spring is only suitable for the condition that the number of disc springs is small, the disc spring is not suitable for the condition that the number of disc springs is large, and the disc spring is not universal. Patent 3 provides a method and a device for detecting a disc spring, but the disc spring assembly cannot be measured.
Therefore, it is very important to design a general device which can directly display the stiffness value of the disc spring assembly and can realize the pre-compression process for the disc spring assemblies with different specifications.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems in the prior art, the utility model provides a measuring device of general type dish spring subassembly global stiffness value.
The utility model discloses a realize through following technical scheme: the utility model provides a measuring device of general type dish spring subassembly global stiffness value which characterized in that: comprises a base, a fixed supporting plate fixed on the base and an adjusting supporting plate in sliding fit with the base,
the positioning pull rod penetrates through the fixed supporting plate and the adjusting supporting plate and is respectively matched with the fixed supporting plate and the adjusting supporting plate through positioning nuts;
a hydraulic push rod is arranged on the fixed supporting plate, the end part of the hydraulic push rod is matched with the top of the disc spring assembly, and a sensing system is arranged between the hydraulic push rod and the disc spring assembly;
the adjusting support plate is provided with a U-shaped opening matched with the pull rod of the disc spring component;
the disc spring fixing device further comprises a supporting block assembly used for supporting the disc spring assembly, and the supporting block assembly is connected to the base in a sliding mode.
Further: the supporting block assembly comprises a positioning sliding block matched with a sliding rail on the base, a connecting plate is arranged on the positioning sliding block, and an adjusting screw rod is fixed on the connecting plate; the lower part of the supporting block is fixed on a connecting sleeve, and the lower end of the connecting sleeve is in threaded fit with the adjusting screw through an adjusting base; and a fixing bolt matched with the slide rail is arranged on the connecting plate.
Further: the number of the positioning pull rods is four.
The utility model has the advantages that: the compression of the disc spring assembly can be realized through a hydraulic push rod connected with a power source; when the disc spring assembly is compressed, the pre-compression force value of the disc spring assembly and the overall rigidity value of the disc spring assembly can be immediately output and displayed through the sensing system assembly; through adjusting frame subassembly and supporting component, can realize supporting the location to the dish spring subassembly of different specifications. The tool can measure the overall stiffness value of the disc spring assembly, find the deviation value between the overall stiffness of the disc spring assembly and theoretical calculation in time and effectively improve the product quality of the disc spring balance type corrugated pipe compensator. And, the use of hydraulic push rod and sensing system can remove the loaded down with trivial details process that in former dish spring subassembly manufacturing process, will carry out the precompression to dish spring subassembly earlier, and the bellows is recycled and is carried out its precompression power value and adjust, has greatly improved production efficiency. Finally, the base and the frame structure of the device are simple, the machining waste can be used for manufacturing, and the manufacturing cost is greatly reduced.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a view showing the usage state of the present invention;
FIG. 3 is a left side view of FIG. 2;
fig. 4 is a sectional view taken along the line a of fig. 3.
The sequence numbers in the figures illustrate: the device comprises a hydraulic push rod 1, a fixed supporting plate 2, a positioning nut 3, a positioning pull rod 4, a sensing system 5, an adjusting supporting plate 6, a base 7, a supporting block assembly 8, a positioning sliding block 9, a horizontal display instrument 10, a disc spring assembly 11 and a U-shaped opening 12.
Detailed Description
As shown in fig. 1-4, the device for measuring the overall stiffness value of a universal disc spring assembly of the present invention comprises a base 7, a fixed support plate 2 fixed on the base, an adjusting support plate 6 in sliding fit with the base, and a positioning pull rod 4 passing through the fixed support plate and the adjusting support plate and respectively cooperating with the fixed support plate and the adjusting support plate through a positioning nut 3; the hydraulic push rod 1 communicated with a hydraulic system is arranged on the fixed supporting plate, the end part of the hydraulic push rod is matched with the top of the disc spring assembly, and a sensing system 5 is arranged between the hydraulic push rod and the disc spring assembly, the sensing system is traditionally used for measuring the stress and displacement conditions of the hydraulic push rod and comprises a pressure sensor and a displacement sensor which are both arranged at the end part of the push rod, the sensors and the displacement sensor are commercially available products, the common model and the installation mode are known and are not repeated; the adjusting support plate is provided with a U-shaped opening 12 matched with a pull rod of the disc spring component; the disc spring fixing device further comprises a supporting block component 8 used for supporting the disc spring component 11, and the supporting block component is connected to the base in a sliding mode.
Preferably: the support block assembly 8 comprises a positioning slide block 9 which is matched with a slide rail on the base and has a positioning function, a connecting plate 806 is arranged on the positioning slide block, and an adjusting screw 804 is fixed on the connecting plate; the device also comprises a supporting block 801 with a V-shaped upper part, wherein the lower part of the supporting block is fixed on a connecting sleeve 802, and the lower end of the connecting sleeve is in threaded fit with an adjusting screw through an adjusting base 803; the connecting plate is provided with a fixing bolt 805 matched with the slide rail.
Preferably: the four positioning pull rods are positioned at four corners of the fixed supporting plate and the adjusting supporting plate.
Preferably: the disc spring barrel is provided with a detachable level indicator 10 which is detachably connected with the barrel, such as in a bonding or magnetic absorption mode, and is arranged in parallel with the axis of the barrel.
Preferably: and a V-shaped groove is formed above the supporting block.
The utility model discloses the working process of structure as follows:
1. preparing: the position of the adjusting support plate 6 is adjusted according to the length of the disc spring assembly 11 and is fixed by the positioning pull rod 4 and the positioning nut 3. According to the number of the required supporting points, positioning slide blocks are arranged on the two sides of the adjusting supporting plate 6 and at corresponding positions on the linear guide rail and the fixed slide block 9 and are fixed; the height of the back-up plate assembly 8 is coarsely adjusted.
2. Installation and adjustment: a disc spring assembly 11 is installed on the upper portion of the tool, the base portion of the disc spring assembly 11 abuts against the inner side of the adjusting support plate 6, the support height is adjusted by screwing in the support base in the adjusting support plate assembly 8, the disc spring assembly is adjusted horizontally by the aid of the detachable horizontal display instrument 10, and finally the disc spring assembly 11, a hydraulic system and the push rod 1 are horizontally aligned.
3. Rigidity value measurement and pre-compression: hydraulic system and push rod 1 are started, make the push rod continue to feed after withstanding dish spring subassembly 11 dog center, compress dish spring subassembly 11, observe sensing system 5's display reading, make the compressive force value its reach theoretical calculation value, at this moment, hydraulic system and push rod 1 stop work, with bolt locking dish spring subassembly 11, accomplish the precompression process to dish spring subassembly 11.
4. Disassembling: the hydraulic system and the push rod 1 are started to retreat backwards to the original position, the hydraulic system and the push rod 1 stop working, and the pre-compressed disc spring assembly 11 is detached from the upper part.
During dish spring balanced type bellows compensator makes, the great and difficult direct measurement's of dish spring subassembly rigidity power value actual motion and theoretical calculation power value deviation difficult problem, the utility model provides a measuring device of general type dish spring subassembly global rigidity power value realizes measuring the dish spring subassembly rigidity power value of different specifications and realizes visual and completion precompression process to dish spring subassembly precompression power value.
The distance between the adjusting support plate and the fixed support plate can be adjusted by adjusting the positioning pull rod and the positioning nut, so that the mounting of disc spring assemblies with different lengths is met; the height of the supporting plate can be adjusted by adjusting the screwing distance of the adjusting base, and the disc spring support is suitable for supporting disc spring cylinders with different specifications; if dish spring subassembly overlength can increase the quantity of location slider and supporting plate subassembly on linear guide rail suitable position, to sum up, this frock can satisfy the measurement and the precompression of the dish spring subassembly of different specifications, and the commonality is better.
Claims (3)
1. The utility model provides a measuring device of general type dish spring subassembly global stiffness value which characterized in that: comprises a base, a fixed supporting plate fixed on the base and an adjusting supporting plate in sliding fit with the base,
the positioning pull rod penetrates through the fixed supporting plate and the adjusting supporting plate and is respectively matched with the fixed supporting plate and the adjusting supporting plate through positioning nuts;
a hydraulic push rod is arranged on the fixed supporting plate, the end part of the hydraulic push rod is matched with the top of the disc spring assembly, and a sensing system is arranged between the hydraulic push rod and the disc spring assembly;
the adjusting support plate is provided with a U-shaped opening matched with the pull rod of the disc spring component;
the disc spring fixing device further comprises a supporting block assembly used for supporting the disc spring assembly, and the supporting block assembly is connected to the base in a sliding mode.
2. The device for measuring the overall stiffness value of the universal disc spring assembly according to claim 1, wherein: the supporting block assembly comprises a positioning sliding block matched with a sliding rail on the base, a connecting plate is arranged on the positioning sliding block, and an adjusting screw rod is fixed on the connecting plate; the lower part of the supporting block is fixed on a connecting sleeve, and the lower end of the connecting sleeve is in threaded fit with the adjusting screw through an adjusting base; and a fixing bolt matched with the slide rail is arranged on the connecting plate.
3. The device for measuring the overall stiffness value of the universal disc spring assembly according to claim 1, wherein: the number of the positioning pull rods is four.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202021497372.7U CN212779826U (en) | 2020-07-27 | 2020-07-27 | Measuring device for overall rigidity value of universal disc spring assembly |
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| CN202021497372.7U CN212779826U (en) | 2020-07-27 | 2020-07-27 | Measuring device for overall rigidity value of universal disc spring assembly |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113390708A (en) * | 2021-06-29 | 2021-09-14 | 东风耐世特转向系统(武汉)有限公司 | Detection tool for detecting rigidity of riveting structure |
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- 2020-07-27 CN CN202021497372.7U patent/CN212779826U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113390708A (en) * | 2021-06-29 | 2021-09-14 | 东风耐世特转向系统(武汉)有限公司 | Detection tool for detecting rigidity of riveting structure |
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