CN211651981U - Air tightness detection device for lubricating track - Google Patents
Air tightness detection device for lubricating track Download PDFInfo
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- CN211651981U CN211651981U CN202020574687.0U CN202020574687U CN211651981U CN 211651981 U CN211651981 U CN 211651981U CN 202020574687 U CN202020574687 U CN 202020574687U CN 211651981 U CN211651981 U CN 211651981U
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- top plate
- joint
- track
- ball valve
- bottom plate
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Abstract
The utility model belongs to the technical field of lubricated track, concretely relates to air tightness detection device for lubricated track, which comprises an air source, a regulating valve, a ball valve and a connecting assembly which are connected in sequence, wherein the connecting assembly comprises a top plate, a joint is clamped in the middle of the top plate, studs are fixed on the top plates at two sides of the joint through outer hexagon nuts, the other ends of the two studs are respectively fixed with a bottom plate, and the top plate and the bottom plate are tightly pressed on the track; the air outlet of the ball valve passes through the joint through a pipeline and extends into the hollow hole of the pin shaft, and a sealing ring is arranged between the joint and the hollow hole of the pin shaft; and a pressure gauge is arranged on a pipeline of the air outlet of the ball valve. The detection device is simple in structure, can achieve the positive pressure air tightness detection function of the lubricating track, and can serve as the oil injection head of the vacuumizing oil injection process.
Description
Technical Field
The utility model belongs to the technical field of lubricated track, concretely relates to device that airtightness was detected for lubricated track.
Background
The lubricated track is different from a common track, liquid lubricating oil is adopted between the shaft and the sleeve, when the lubricated track is used, the shaft and the sleeve transmit traction force through an oil film and rotate mutually, and the service life of the lubricated track is greatly prolonged compared with that of a common sealed track and a dry track. However, the liquid lubricating oil has good fluidity, and is more prone to oil leakage and oil leakage market faults, so that after the crawler belt is pressed and before oil injection, the positive pressure air tightness detection of the lubricating caterpillar track through the oil injection hole is of great importance. At present, the commonly used positive pressure air tightness detection device is complex in structural form, high in manufacturing cost and suitable for batch production, positive pressure air tightness detection is carried out through sealing of the end portion of the pin shaft, the requirement on the roughness of the end portion of the pin shaft is high, and the manufacturing cost of a lubricating caterpillar track is increased.
Disclosure of Invention
In order to overcome above-mentioned prior art's weak point, the utility model provides a device that air tightness detected for lubricated track, the device simple structure can realize lubricated track's positive pressure air tightness and detect the function, and the joint can also regard as the oiling head of evacuation oiling process simultaneously.
The utility model discloses a realize through following technical scheme: a device for detecting air tightness for lubricating a track comprises an air source, a regulating valve, a ball valve and a connecting assembly which are sequentially connected, wherein the connecting assembly comprises a top plate, the middle part of the top plate is clamped with a joint, double-end studs are fixed on the top plates on two sides of the joint through outer hexagon nuts, the other ends of the two double-end studs are respectively fixed with a bottom plate, and the top plate and the bottom plate are tightly pressed on the track; the air outlet of the ball valve passes through the joint through a pipeline and extends into the hollow hole of the pin shaft, and a sealing ring is arranged between the joint and the hollow hole of the pin shaft; and a pressure gauge is arranged on a pipeline of the air outlet of the ball valve.
Furthermore, a threaded hole is formed in the bottom plate, and the stud is in threaded connection with the bottom plate; the top plate is provided with a unthreaded hole, the screw portion of the outer hexagon nut extends into the unthreaded hole of the top plate to be in threaded connection with the stud, and the outer hexagon nut clamps the top plate on the shaft shoulder of the stud.
Further, the sealing ring is an O-shaped sealing ring.
The utility model has the advantages that: the detection device is simple in structure, can achieve the positive pressure air tightness detection function of the lubricating track, and can serve as the oil injection head of the vacuumizing oil injection process.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the usage state of the present invention;
fig. 3 is a schematic view of the connection assembly of the present invention;
in the figure, 1, a gas source, 2, a pressure regulating valve, 3, a ball valve, 4, a pressure gauge, 5, a connecting assembly, 51, a bottom plate I, 52, a top plate, 53, a stud I, 54, an outer hexagon nut I, 55, a joint, 56, a sealing ring, 57, a stud II, 58, an outer hexagon nut II, 59, a bottom plate II, 6, a caterpillar track section I, 7, a pin shaft, 8, a lubricating caterpillar track sealing ring, 9, a pin sleeve, 10 and a caterpillar track section II.
Detailed Description
The invention will be further explained below with reference to the drawings and examples.
As shown in fig. 1 to fig. 3, the pressed lubricated caterpillar track (at least two sections) is placed on a test bench, in this embodiment, two sections of caterpillar track sections are taken as an example for explanation, a pin 7 is sleeved in a pin sleeve 9, and a caterpillar section i 6 and a caterpillar section ii 10 are connected into a whole, and a lubricated caterpillar track sealing ring 8 is further sleeved on the pin 7. An air source 1, a pressure regulating valve 2, a ball valve 3 and a pressure gauge 4 are connected by using an air pipe and a joint according to the figure 1; an O-shaped sealing ring 56 is arranged in a groove on a joint 55, the joint 55 is inserted into a pin shaft 7, a top plate 52 is arranged on the joint 55, a stud I53 penetrates through the top plate 52 to be connected with a bottom plate I51 through threads, and an outer hexagonal nut I54 is screwed on the stud I53; similarly, the stud II 57 penetrates through the top plate 52 to be connected with the bottom plate II 59 through threads, the outer hexagon nut II 58 is screwed to the stud II 57, and the top plate 52 is clamped on the joint 55 through the outer hexagon nut I54 and the outer hexagon nut II 58. And setting positive pressure detection pressure and positive pressure detection time, and performing a positive pressure air tightness detection test. Setting air pressure through the pressure regulating valve 2, taking 0.4MPa as an example, closing the ball valve 3, manually timing, taking 1min as an example, within a specified time, and judging that the positive pressure air tightness detection of the current section of the lubricating track is qualified if the reading of the pressure gauge 4 is not higher than a specified value. And when the detection is qualified, the air pipe of the joint 55 can be replaced by a vacuumizing oil injection pipeline, the vacuum degree and the oil injection amount are set, and a vacuumizing oil injection test button is started to inject oil.
Claims (3)
1. The utility model provides a device that lubricated for track gas tightness detected which characterized in that: the device comprises an air source (1), a regulating valve (2), a ball valve (3) and a connecting assembly (5) which are sequentially connected, wherein the connecting assembly (5) comprises a top plate (52), a joint (55) is clamped in the middle of the top plate (52), double-end studs are fixed on the top plate (52) on two sides of the joint (55) through outer hexagon nuts, the other ends of the two double-end studs are fixed with a bottom plate, and the top plate (52) and the bottom plate are tightly pressed on a crawler; an air outlet of the ball valve (3) penetrates through the joint (55) through a pipeline and extends into a hollow hole of the pin shaft (7), and a sealing ring (56) is arranged between the joint (55) and the hollow hole of the pin shaft (7); a pressure gauge (4) is arranged on the pipeline of the air outlet of the ball valve (3).
2. The apparatus for detecting airtightness for lubricating a crawler according to claim 1, wherein: the bottom plate is provided with a threaded hole, and the stud is in threaded connection with the bottom plate; the top plate (52) is provided with a unthreaded hole, the screw rod part of the outer hexagon nut extends into the unthreaded hole of the top plate (52) to be in threaded connection with the stud, and the outer hexagon nut clamps the top plate (52) on the shaft shoulder of the stud.
3. The apparatus for detecting airtightness for lubricating a crawler according to claim 1, wherein: the sealing ring (56) is an O-shaped sealing ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020574687.0U CN211651981U (en) | 2020-04-17 | 2020-04-17 | Air tightness detection device for lubricating track |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020574687.0U CN211651981U (en) | 2020-04-17 | 2020-04-17 | Air tightness detection device for lubricating track |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211651981U true CN211651981U (en) | 2020-10-09 |
Family
ID=72688988
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020574687.0U Active CN211651981U (en) | 2020-04-17 | 2020-04-17 | Air tightness detection device for lubricating track |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211651981U (en) |
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2020
- 2020-04-17 CN CN202020574687.0U patent/CN211651981U/en active Active
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