CN109973655B - Sealing element for automobile crane - Google Patents
Sealing element for automobile crane Download PDFInfo
- Publication number
- CN109973655B CN109973655B CN201910322226.6A CN201910322226A CN109973655B CN 109973655 B CN109973655 B CN 109973655B CN 201910322226 A CN201910322226 A CN 201910322226A CN 109973655 B CN109973655 B CN 109973655B
- Authority
- CN
- China
- Prior art keywords
- sealing gasket
- lubricating oil
- pad
- air bag
- automobile crane
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 238000007789 sealing Methods 0.000 title claims abstract description 105
- 239000007787 solid Substances 0.000 claims abstract description 44
- 239000000314 lubricant Substances 0.000 claims abstract description 41
- 239000010687 lubricating oil Substances 0.000 claims abstract description 38
- 230000001050 lubricating effect Effects 0.000 claims description 30
- 239000003921 oil Substances 0.000 claims description 25
- 239000007788 liquid Substances 0.000 claims description 17
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 3
- 229910052739 hydrogen Inorganic materials 0.000 claims description 3
- 239000001257 hydrogen Substances 0.000 claims description 3
- 239000012530 fluid Substances 0.000 description 11
- 230000000694 effects Effects 0.000 description 4
- 238000005299 abrasion Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 239000013589 supplement Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
- F15B15/1423—Component parts; Constructional details
- F15B15/1457—Piston rods
- F15B15/1461—Piston rod sealings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/162—Special parts or details relating to lubrication or cooling of the sealing itself
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N11/00—Arrangements for supplying grease from a stationary reservoir or the equivalent in or on the machine or member to be lubricated; Grease cups
- F16N11/04—Spring-loaded devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N15/00—Lubrication with substances other than oil or grease; Lubrication characterised by the use of particular lubricants in particular apparatus or conditions
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Sealing Devices (AREA)
- Fluid-Damping Devices (AREA)
Abstract
The invention discloses a sealing element for an automobile crane, which comprises an upper sealing gasket and a lower sealing gasket, wherein the upper sealing gasket is movably arranged at the upper end of the lower sealing gasket, lubricating oil gaskets are fixedly arranged on the surfaces of the opposite outer ends of the upper sealing gasket and the lower sealing gasket, a cavity is formed in the upper sealing gasket, a plurality of groups of second springs are arranged at the bottom end in the cavity, and a supporting plate is arranged at the upper ends of the springs; the surface of the upper end of the supporting plate is fixedly connected with a screw cap and a pressing sheet, the inner thread of the screw cap is connected with a thread column, and the upper end of the thread column is fixedly connected with a solid lubricant through a gasket.
Description
Technical Field
The invention relates to the technical field of automobile cranes, in particular to a sealing element for an automobile crane.
Background
The crane has the advantages of good mobility and rapid transfer, and is mainly used for plugging the gap of the joint surface of the hydraulic rod, so as to effectively prevent the hydraulic oil from leaking into the atmosphere, and the sealing element is a material or a part for preventing fluid or solid particles from leaking between adjacent joint surfaces and preventing external impurities such as dust, moisture and the like from invading into parts inside the machine equipment.
However, most sealing elements for automobile cranes in the current market have single functionality, are very inconvenient to use, and when the traditional sealing elements for automobile cranes are used, the lubricating oil on the surface of the sealing elements is used up along with the service life, and dry friction between the sealing elements and sealing objects occurs, so that the sealing elements are worn, and the sealing effect is affected.
Disclosure of Invention
The invention aims to provide a sealing element for an automobile crane, which solves the problems in the background technology.
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a sealing member for automobile crane, includes sealed pad and lower sealed pad, go up sealed pad movable mounting in lower sealed pad upper end, go up sealed pad and lower sealed pad's the equal fixed mounting in relative outer end surface has the lubricating oil pad, the cavity has been seted up to the lubricating oil pad inside, the cavity is inside to be close to the tip that goes up sealed pad and lower sealed pad is equipped with No. two springs, no. two springs are equipped with a plurality of groups, no. two springs keep away from the tip that goes up sealed pad and lower sealed pad and are equipped with the backup pad, the backup pad is kept away from the tip surface fixedly connected with nut and the preforming that goes up sealed pad and lower sealed pad, the preforming is located between the nut, nut internal thread connection has the screw thread post, screw thread post upper end is through gasket fixedly connected with solid lubricant, the inside tip that keeps away from of going up sealed pad and lower sealed pad of keeping away from of cavity is inlayed and is had the gasbag, gasbag one end joint has the oil hose.
Preferably, the recess has been seted up to lower sealing gasket upper end surface, the inside bottom of recess is equipped with a spring, a spring is equipped with a plurality of groups, a spring upper end welding has the spring holder, upper sealing gasket lower extreme surface fixed connection lug, and lug slidable mounting is inside the recess.
Preferably, the inside of the air bag is filled with a lubricating liquid.
Preferably, one end of the solid lubricant, which is far away from the threaded column, penetrates through a through hole formed in the surface of the lubricating oil pad and extends to the outside of the lubricating oil pad, and the diameters of the through holes are consistent with those of the solid lubricant and the screw cap.
Preferably, the oil outlet is formed in the surface of the lubricating oil pad, the sponge is embedded in the oil outlet, the end face of the sponge is flush with the end face of the lubricating oil pad, and one end, far away from the air bag, of the oil outlet hose penetrates through the lubricating oil pad and is stopped in the sponge.
Preferably, the position where the air bag is arranged and the position where the pressing sheet is arranged are located on the same vertical axis, the pressing sheet is fixedly connected with the supporting plate through the supporting rod, and one end face of the pressing sheet, which is close to the air bag, is of a circular arc structure and is matched with the circular arc section of the air bag.
Preferably, the height of the nut is consistent with the depth of the through hole.
Preferably, the sum of the length of the second spring in the non-working state and the thickness of the supporting plate is equal to the depth of the cavity.
Preferably, the lubricating fluid is specifically a synthetic hydrogen-resistant lubricating oil.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, the solid lubricant and the air bag are arranged, when the solid lubricant is actually used, the sealing element can be arranged between the hydraulic rods of the automobile crane, meanwhile, the solid lubricant can be extruded into the cavity to move, the second spring can be compressed through the supporting plate, so that the second spring is always in a compressed state, the solid lubricant can be worn along with the second spring along with the use time of the sealing element, when the solid lubricant wears out a little, the supporting plate can be moved upwards by the second spring under the action of elastic force, the end face of the solid lubricant always contacts with a sealing object, the lubricity between the sealing element and the sealing object is ensured, and when the supporting plate is lifted by the second spring, the pressing sheet is driven to extrude the air bag, when the air bag is extruded, the lubricating liquid in the air bag is injected into the oil outlet hose and then flows into the sponge, the sponge can absorb the lubricating liquid, and then the lubricating liquid is transferred to the surface of the lubricating oil pad, so that the lubricating property between the sealing element and the sealing object can be improved, the condition that the lubricating oil on the surface of the sealing element is used up can be avoided, the dry friction between the sealing element and the sealing object can be prevented, and the sealing element can not be caused, and the sealing effect of the sealing element is prevented.
2. According to the invention, through the installed nut, when the sealing piece is used in practice, if the service time is too long, the second spring can prop up the supporting plate under the action of no external force, the nut can be ejected out of the cavity, then the nut passes through the through hole and moves to the surface of the lubricating oil pad, meanwhile, the air bag is flattened, the threaded column in the nut can be turned down, then a new solid lubricant is replaced, the solid lubricant is installed on the nut through the threaded column, then the solid lubricant is pressed downwards, so that the second spring is compressed, the air bag is far away from the surface of the air bag, the air bag is bulged, then the sponge in the oil outlet hole is taken down, the port of the oil outlet hose is aligned by the injector, the lubricating liquid is injected into the air bag through the oil outlet hose, then the sponge is arranged, the supplement and replacement of the solid lubricant and the lubricating liquid in the sealing piece can be completed, the whole sealing piece is not required to be thrown away due to the fact that the solid lubricant and the lubricating liquid is used up, the waste of resources is avoided, and the environment-friendly performance is good.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a schematic view of the internal structure of the present invention;
FIG. 3 is a top view of the present invention;
FIG. 4 is a schematic view of a part of an enlarged structure of a lubricating pad according to the present invention;
fig. 5 is an enlarged schematic view of the structure of fig. 2 at a in the present invention.
In the figure: 1-an upper sealing gasket; 2-a lower gasket; 3-a lubricating oil pad; 4-a solid lubricant; 5-cavity; 6-an air bag; 7-supporting plates; 8-bump; 9-spring number one; 10-grooves; 11-an oil outlet hole; 12-an oil outlet hose; 13-spring II; 14-through holes; 15-a threaded post; 16-nut; 17-lubricating fluid; 18-tabletting; 19-spring seats; 20-sponge.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Embodiment one:
referring to fig. 1-5, the present invention provides a technical solution: the sealing piece for the automobile crane comprises an upper sealing gasket 1 and a lower sealing gasket 2, wherein the upper sealing gasket 1 is movably arranged at the upper end of the lower sealing gasket 2, a lubricating oil pad 3 is fixedly arranged on one end surface of the upper sealing gasket 1 and one end surface of the lower sealing gasket 2, a cavity 5 is formed in the lubricating oil pad 3, a second spring 13 is welded at the end part, close to the upper sealing gasket 1 and the end part, close to the lower sealing gasket 2 in the cavity 5, of the second spring 13, a plurality of groups of springs 13 are arranged, a supporting plate 7 is welded at the end part, far from the upper sealing gasket 1 and the end part, far from the lower sealing gasket 2, of the second spring 13, a nut 16 and a pressing piece 18 are fixedly connected to the end surface, far from the upper sealing gasket 1 and the lower sealing gasket 2, of the pressing piece 18 is positioned between the nuts 16, a threaded column 15 is connected to the inner threads of the nut 16, a solid lubricant 4 is fixedly connected to the upper end of the threaded column 15 through a gasket, an air bag 6 is inlaid at the end part, far from the upper end of the cavity 5, and one end of the air bag 6 is clamped with an oil outlet hose 12; in practical use, the sealing element can be arranged between hydraulic rods of an automobile crane, meanwhile, the solid lubricant 4 can be extruded to move into the cavity 5, the second spring 13 can be compressed through the supporting plate 7, so that the second spring 13 is always in a compressed state, the solid lubricant 4 can be worn along with the increase of the using time of the sealing element, when the solid lubricant 4 is worn a little, the second spring 13 can move the supporting plate 7 upwards under the action of elastic force, so that the end surface of the solid lubricant 4 always contacts with a sealing object, the lubricity between the sealing element and the sealing object is ensured, and when the second spring 13 lifts the supporting plate 7, the pressing sheet 18 is driven to extrude the air bag 6, and when the air bag 6 is extruded, the lubricating liquid 17 in the air bag 6 is injected into the oil outlet hose 12 and then flows into the sponge 20, the sponge 20 can absorb the lubricating liquid 17 and then transfer the lubricating liquid to the surface of the lubricating oil pad 3, so that the lubricating property between the sealing element and a sealed object can be improved, the condition that the lubricating oil on the surface of the sealing element is used up can be avoided, the sealing element and the sealed object can be prevented from dry friction, the abrasion of the sealing element can not be caused, the sealing effect of the sealing element is ensured, the upper end surface of the lower sealing pad 2 is provided with a groove 10, the bottom end inside the groove 10 is welded with a first spring 9, the first spring 9 is provided with a plurality of groups, the upper end of the first spring 9 is welded with a spring seat 19, the lower end surface of the upper sealing pad 1 is fixedly connected with a convex block 8, and the convex block 8 is slidably arranged inside the groove 10; the upper sealing gasket 1 and the lower sealing gasket 2 can be detached, so that the maintenance of people is facilitated, the inside of the air bag 6 is filled with lubricating liquid 17, one end, far away from the screw column 15, of the solid lubricant 4 penetrates through a through hole 14 formed in the surface of the lubricating oil pad 3 and extends to the outside of the lubricating oil pad 3, and the diameters of the through holes 14 are consistent with those of the solid lubricant 4 and the screw cap 16; when the second spring 13 is sprung up, the nut 16 can be ejected out of the through hole 14, the through hole can be sealed after the solid lubricant 4 is used up, dust is prevented from entering the cavity 5, the surface of the lubricating oil pad 3 is provided with the oil outlet 11, the inside of the oil outlet 11 is inlaid with the sponge 20, the end face of the sponge 20 is flush with the end face of the lubricating oil pad 3, and one end, far away from the air bag 6, of the oil outlet hose 12 penetrates through the lubricating oil pad 3 and is stopped in the sponge 20; the lubricating liquid 17 adsorbed in the sponge 20 can smoothly flow into the surface of the lubricating oil pad 3, the position of the air bag 6 is positioned on the same vertical axis as the position of the pressing sheet 18, the pressing sheet 18 is fixedly connected with the supporting plate 7 through a supporting rod, and the end face of the pressing sheet 18, which is close to the air bag 6, is in a circular arc structure and is matched with the circular arc section of the air bag 6; ensure that the tabletting 18 can smoothly extrude the lubricating fluid 17 in the air bag 6, and can not damage the air bag 6, the height of the screw cap 16 is consistent with the depth of the through hole 14, the sum of the length of the second spring 13 in the non-working state and the thickness of the supporting plate 7 is equal to the depth of the cavity 5, and the lubricating fluid 17 is specifically synthetic hydrogen-resistant lubricating oil.
Embodiment two:
referring to fig. 2, 4 and 5, the present invention provides a technical solution: the sealing piece for the automobile crane is characterized in that a second spring 13 is welded at the bottom end inside the cavity 5, a plurality of groups of second springs 13 are arranged, a supporting plate 7 is welded at the upper end of the second spring 13, a nut 16 and a pressing piece 18 are fixedly connected to the surface of the upper end of the supporting plate 7, the pressing piece 18 is positioned between the nuts 16, a threaded column 15 is connected to the inner threads of the nut 16, a solid lubricant 4 is fixedly connected to the upper end of the threaded column 15 through a gasket, an air bag 6 is inlaid at the top end inside the cavity 5, and an oil outlet hose 12 is clamped at one end of the air bag 6; in practical use, if the sealing element is too long in service time, the sealing element can be taken down, the second spring 13 can prop up the supporting plate 7 under the action of no external force, the nut 16 can be ejected out of the cavity 5, then the sealing element passes through the through hole 14 and moves to the surface of the lubricating oil pad 3, meanwhile, the air bag 6 can be flattened by the pressing sheet 18, the threaded column 15 in the nut 16 can be turned down, then a new solid lubricant 4 is replaced, the solid lubricant 4 is installed on the nut 16 through the threaded column 15, then the solid lubricant 4 is pressed downwards, so that the second spring 13 is compressed, meanwhile, the pressing sheet 18 is far away from the surface of the air bag 6, the air bag 6 can bulge, then the sponge 20 in the oil outlet 11 is taken down, the injector is aligned to the port of the oil outlet hose 12, the lubricating fluid 17 is injected into the air bag 6 through the oil outlet hose 12, then the sponge 20 is added, the supplement and replacement of the solid lubricant and the lubricating fluid in the sealing element can be completed, the whole sealing element is not required to be thrown away due to the exhaustion of the solid lubricant and the lubricating fluid, the waste of resources is avoided, the nut 16 has good environmental protection, the height of the nut 16 is consistent with the depth of the through hole 14, and the sum of the length of the second spring 13 in the non-working state and the thickness of the supporting plate 7 is equal to the depth of the cavity 5; the second spring 13 can be pushed out of the through hole 14 when the second spring is in a non-working state, so that people can conveniently take down the threaded column 15 in the second spring 16.
Working principle: in practical use, the sealing element can be arranged between hydraulic rods of an automobile crane, meanwhile, the solid lubricant 4 can be extruded to move into the cavity 5, the second spring 13 can be compressed through the supporting plate 7, so that the second spring 13 is always in a compressed state, the solid lubricant 4 can be worn along with the increase of the use time of the sealing element, when the solid lubricant 4 is worn a little, the second spring 13 can move the supporting plate 7 upwards under the action of elastic force, so that the end surface of the solid lubricant 4 always contacts with a sealing object, the lubricity between the sealing element and the sealing object is ensured, and when the second spring 13 lifts the supporting plate 7, the pressing sheet 18 is driven to extrude the air bag 6, when the air bag 6 is extruded, the lubricating liquid 17 in the air bag 6 is injected into the oil outlet hose 12 and then flows into the sponge 20, the sponge 20 can absorb the lubricating liquid 17 and then transmit the lubricating liquid to the surface of the lubricating oil pad 3, so that the lubricating property between the sealing element and a sealed object can be improved, the condition that the lubricating oil on the surface of the sealing element is used up can be avoided, the occurrence of dry friction between the sealing element and a sealed object can be prevented, the abrasion of the sealing element can not be caused, the sealing effect of the sealing element is ensured, if the sealing element has too long service time, the sealing element can be taken down, the second spring 13 can prop up the supporting plate 7 under the action of no external force, the nut 16 can be ejected out of the cavity 5, then the nut 16 passes through the through hole 14 to move to the surface of the lubricating oil pad 3, meanwhile, the air bag 6 can be flattened by the pressing piece 18, the threaded column 15 in the nut 16 can be rotated down, then a new solid lubricant 4 is replaced, the solid lubricant 4 is installed on the nut 16 through the threaded column 15, and then the solid lubricant 4 is pressed downwards, the second spring 13 is compressed, the pressing piece 18 is far away from the surface of the air bag 6, the air bag 6 is bulged, then the sponge 20 in the oil outlet 11 is taken down, the injector is aligned with the port of the oil outlet hose 12, the lubricating fluid 17 is injected into the air bag 6 through the oil outlet hose 12, then the sponge 20 is arranged, and the replenishment and replacement of the solid lubricant and the lubricating fluid in the sealing element can be completed, so that the whole sealing element is not required to be thrown away due to the exhaustion of the solid lubricant and the lubricating fluid.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The utility model provides a sealing member for automobile crane, includes sealed pad (1) and lower sealed pad (2), go up sealed pad (1) movable mounting in lower sealed pad (2) upper end, its characterized in that: the upper sealing gasket (1) and the lower sealing gasket (2) are fixedly provided with lubricating oil gaskets (3) on the surfaces of the opposite outer ends, the upper end surface of the lower sealing gasket (2) is provided with a groove (10), the inner bottom end of the groove (10) is provided with a plurality of groups of first springs (9), the upper ends of the first springs (9) are fixedly provided with spring seats (19), the lower end surface of the upper sealing gasket (1) is fixedly connected with a convex block (8), the convex block (8) is slidably arranged in the groove (10), the lubricating oil gaskets (3) are internally provided with cavities (5), the inner parts of the cavities (5) are close to the ends of the upper sealing gasket (1) and the lower sealing gasket (2) and are provided with a plurality of groups of second springs (13), the end parts of the second springs (13) away from the upper sealing gasket (1) and the lower sealing gasket (2) are provided with support plates (7), the end surfaces of the support plates (7) away from the upper sealing gasket (1) and the lower sealing gasket (2) are fixedly connected with nuts (16) and pressing pieces (18), the pressing pieces (18) are positioned between the nuts (16) and the nuts (16) are positioned between the nuts (16), the inner parts are connected with a solid threaded gasket (15) through threads, the solid gasket (15), the utility model discloses a lubricating oil filling up device, including cavity (5), sealed pad (1) and sealed pad (2) down, the tip of sealed pad (2) is inlayed down in cavity (5) inside has gasbag (6), gasbag (6) one end joint has oil-out hose (12), oil outlet (11) have been seted up on lubricating oil pad (3) surface, sponge (20) have been inlayed to oil outlet (11) inside, the terminal surface of sponge (20) flushes with the terminal surface of lubricating oil pad (3), the one end that gasbag (6) was kept away from to oil-out hose (12) runs through lubricating oil pad (3) and ends in sponge (20) inside.
2. The sealing member for an automobile crane according to claim 1, wherein: the inside of the air bag (6) is filled with lubricating liquid (17).
3. The sealing member for an automobile crane according to claim 1, wherein: one end of the solid lubricant (4) far away from the threaded column (15) penetrates through a through hole (14) formed in the surface of the lubricating oil pad (3) and extends to the outside of the lubricating oil pad (3), and the diameters of the through hole (14) are consistent with those of the solid lubricant (4) and the screw cap (16).
4. The sealing member for an automobile crane according to claim 1, wherein: the position where the air bag (6) is arranged and the position where the pressing sheet (18) is arranged are located on the same vertical axis, the pressing sheet (18) is fixedly connected with the supporting plate (7) through the supporting rod, and one end face, close to the air bag (6), of the pressing sheet (18) is in a circular arc structure and is matched with the circular arc section of the air bag (6).
5. The sealing member for an automobile crane according to claim 1, wherein: the height of the nut (16) is consistent with the depth of the through hole (14).
6. The sealing member for an automobile crane according to claim 1, wherein: the sum of the length of the second spring (13) in the non-working state and the thickness of the supporting plate (7) is equal to the depth of the cavity (5).
7. A seal for an automobile crane according to claim 2, characterized in that: the lubricating liquid (17) is a synthetic hydrogen-resistant lubricating oil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910322226.6A CN109973655B (en) | 2019-04-22 | 2019-04-22 | Sealing element for automobile crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910322226.6A CN109973655B (en) | 2019-04-22 | 2019-04-22 | Sealing element for automobile crane |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109973655A CN109973655A (en) | 2019-07-05 |
| CN109973655B true CN109973655B (en) | 2024-02-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910322226.6A Active CN109973655B (en) | 2019-04-22 | 2019-04-22 | Sealing element for automobile crane |
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| CN (1) | CN109973655B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112325010A (en) * | 2020-11-16 | 2021-02-05 | 徐如林 | Pipe connecting device for fluid conveying |
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Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB0607623D0 (en) * | 2006-04-19 | 2006-05-31 | Aes Eng Ltd | Bearing protector with air pumps |
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| DE2249201A1 (en) * | 1972-01-12 | 1973-08-02 | Federal Mogul Supertex | SEALING RING FOR ROTATING PARTS, LIKE SHAFTS OR THE LIKE, AND METHOD FOR MANUFACTURING SUCH SEALING RINGS |
| FR2465933A1 (en) * | 1979-09-25 | 1981-03-27 | Nuovo Pignone Spa | IMPROVED PRESS-CUTTING INSERT FOR HIGH-PRESSURE OPERATING PISTON MACHINES |
| CN102564113A (en) * | 2012-02-23 | 2012-07-11 | 合肥天焱绿色能源开发有限公司 | Rotary kiln and sealing device of rotary kiln |
| CN205064500U (en) * | 2015-10-21 | 2016-03-02 | 恩倍力（昆山）机械有限公司 | Self -lubricating round pin axle |
| CN208295367U (en) * | 2018-03-23 | 2018-12-28 | 广州畅业橡胶石油设备有限公司 | A kind of rubber hose facilitating installation |
| CN108716543A (en) * | 2018-05-24 | 2018-10-30 | 江苏海川卓越密封材料有限公司 | A kind of sealing element of bearing |
| CN209990906U (en) * | 2019-04-22 | 2020-01-24 | 扬中市华森密封件有限公司 | Sealing element for automobile crane |
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| CN109973655A (en) | 2019-07-05 |
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