Oil film coating device for telescopic rod

Abstract

The utility model belongs to the technical field of hydraulic oil cylinders, and relates to a telescopic rod oil film coating device which comprises a supporting piece and an oil film supply piece movably arranged at the top of the supporting piece. And the oil film supply piece is annular on the whole. The telescopic rod oil film coating device can effectively prolong the service life of a hydraulic support.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of hydraulic oil cylinder relates to a hydraulic rod protection device, especially relates to a telescopic rod oil film coating device. BACKGROUND

[0002] In coal mine production, coal mine roof accident is one of the main accidents threatening mine safety, hydraulic support is the main means of roof support of the present coal mining face, and the position of the hydraulic support roof beam as the support component directly contacting with the coal seam roof directly affects the roof support effect. The hydraulic cylinder is a very important component in the hydraulic support, and the structural stability directly affects the performance, use state and working life of the hydraulic support. The hydraulic support often works in a working environment with corrosive liquid or gas and a large amount of dust. On the one hand, the corrosive liquid or gas corrodes the outer surface of the hydraulic cylinder of different levels, which seriously affects the service life of the hydraulic cylinder; secondly, there is a gap between the adjacent two levels of hydraulic cylinders, and dust is easy to enter the hydraulic cylinder from the gap, causing the hydraulic cylinder to be stuck or locked, which affects the service life of the hydraulic support. In order to overcome the problem, the surface of the hydraulic cylinder is usually brushed by artificial regularly to protect the hydraulic cylinder, but artificial brushing is time-consuming and laborious, and the efficiency is low, and the high labor cost is also increased. CONTENT OF THE UTILITY MODEL

[0003] In order to solve the above technical problems existing in the background art, the utility model provides a telescopic rod oil film coating device which can effectively prolong the service life of the hydraulic support.

[0004] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0005] A telescopic rod oil film coating device, characterized by: the telescopic rod oil film coating device comprises a support and an oil film supply part movably arranged on the top of the support; the oil film supply part is annular as a whole.

[0006] The oil film supply part is one or more, when the oil film supply part is more, the multiple oil film supply parts are arranged on the top of the support in turn from top to bottom.

[0007] The oil film supply part is an oil-permeable hemp rope, an oil-permeable cloth strip or an oil-permeable cotton which is arranged around.

[0008] The support comprises a closable hoop, and the closable hoop is hollow in structure as a whole; the oil film supply part is movably arranged on the top of the closable hoop.

[0009] The closable hoop comprises a first hoop and a second hoop which is buckled or attached to the first hoop.

[0010] The structure of the first clamp mentioned above is either completely the same as or completely different from that of the second clamp.

[0011] The cross-section of the first clamp mentioned above is semi-circular, tile-shaped, or 1 / 4 arc-shaped.

[0012] The cross-section of the aforementioned second clamp is semi-circular, tile-shaped, or 3 / 4 arc-shaped.

[0013] The aforementioned closable clamp also includes a connecting ear plate, through which the first clamp is connected to the second clamp.

[0014] The aforementioned support also includes hooks disposed on the closable clamp and extending from the side wall of the closable clamp to the top of the closable clamp; the oil film supply component is interlaced and wound around the hooks.

[0015] The advantages of this utility model are:

[0016] This invention provides a telescopic rod oil film coating device, including a support member and an oil film supply member movably disposed on the top of the support member; the oil film supply member is generally annular. The annular oil film supply member is directly wound around the hydraulic cylinder, especially around the connection between the second-stage hydraulic cylinder and the first-stage hydraulic cylinder. The oil film supply member supplies or coats lubricating grease to the outer wall of the second-stage hydraulic cylinder, forming an oil film on the outer surface of the second-stage hydraulic cylinder. This isolates the second-stage hydraulic cylinder from the working environment containing corrosive liquids or gases and a large amount of dust. On the one hand, this reduces the corrosion of the hydraulic cylinder, especially the outer surface of the second-stage hydraulic cylinder, by corrosive liquids or gases, directly extending the service life of the hydraulic cylinder. On the other hand, due to the presence of this oil film, dust in the working environment forms a barrier upon encountering the oil film, delaying or blocking dust from entering the first-stage hydraulic cylinder through the gap between the second-stage and first-stage hydraulic cylinders. This avoids jamming or seizing of the second-stage and first-stage hydraulic cylinders during operation, and also improves the service life of the hydraulic support. Third, when the hydraulic support is in a dust-free working environment, the presence of the oil film provides appropriate lubrication between the second-stage hydraulic cylinder and the first-stage hydraulic cylinder, ensuring the smooth operation of the hydraulic support. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the telescopic rod oil film coating device provided by this utility model;

[0018] Figure 2 This is a bottom view of the telescopic rod oil film coating device provided by this utility model;

[0019] Figure 3 This is a side view of the telescopic rod oil film coating device provided by this utility model;

[0020] Figure 4 is a use state schematic view of the telescopic rod oil film coating device provided by the utility model;

[0021] Among them:

[0022] 1-First clasp; 2-Second clasp; 3-Connecting ear plate; 4-Hook; 5-Oil film supply; 6-Second stage hydraulic cylinder; 7-First stage hydraulic cylinder. DETAILED DESCRIPTION

[0023] Referring to Figure 4 , the utility model provides a telescopic rod oil film coating device, including support spare and the oil film supply 5 of movable setting at the top of support spare, the oil film supply 5 is annular as a whole. The annular oil film supply 5 is directly wound in hydraulic cylinder, especially the connecting place of second stage hydraulic cylinder 6 and first stage hydraulic cylinder 7, supplies or coats lubricating grease to the outer wall of second stage hydraulic cylinder 6 through oil film supply 5, forms oil film on the outer surface of second stage hydraulic cylinder 6, insulates second stage hydraulic cylinder 6 and the working environment of corrosive liquid or gas and the existence of a large number of dust, reduces corrosive liquid or gas to hydraulic cylinder, especially the corrosion of the outer surface of second stage hydraulic cylinder 6 on one hand, directly prolongs the service life of hydraulic cylinder, second, because of the existence of the oil film, the dust in the working environment meets the oil film, forms a barrier wall through the oil film, delays or blocks the dust from entering the inside of first stage hydraulic cylinder 7 through the gap between second stage hydraulic cylinder 6 and first stage hydraulic cylinder 7, avoids the jamming or lockup phenomenon of second stage hydraulic cylinder 6 and first stage hydraulic cylinder 7 in the movement process, also improves the service life of hydraulic support. Third, when the hydraulic support is in the dust-free working environment, the existence of the oil film provides corresponding lubrication between second stage hydraulic cylinder 6 and first stage hydraulic cylinder 7, ensures the smooth work of hydraulic support.

[0024] In order to be able to provide enough oil film, the oil film supply 5 provided by the utility model is one or multiple, when the oil film supply is multiple, the multiple oil film supplies are sequentially arranged on the top of the support from top to bottom. Exemplarily, the oil film supply adopted by the utility model is oil-permeable hemp rope, oil-permeable cloth strip or oil-permeable cotton, which is arranged around. After working for a certain period of time, the oil film supply 5 can be directly replaced, or the oil film supply 5 can be continuously impregnated with oil to continuously provide oil film supply.

[0025] Referring to Figure 1 , Figure 2 and Figure 3 , the support adopted by the utility model includes a closable clasp, which is in a hollow cylindrical structure as a whole. The oil film supply is movably arranged on the top of the closable clasp. Referring to Figure 4The support is arranged around the outside of the first hydraulic cylinder 7, so that the oil film supply part 5 has a stable and continuous oil film supply.

[0026] Referring to Figure 1 , Figure 2 and Figure 3 , the closable hoop adopted by the utility model comprises a first hoop 1 and a second hoop 2 buckled or adhered with the first hoop 1. The structure of the first hoop 1 is completely same or completely different from the structure of the second hoop 2. The cross section of the first hoop 1 is semicircular, tile-shaped or 1 / 4 circular arc-shaped. The cross section of the second hoop 2 is semicircular, tile-shaped or 3 / 4 circular arc-shaped. Referring to Figure 1 , Figure 2 and Figure 3 , the cross section of the second hoop 2 is 3 / 4 circular arc-shaped, the cross section of the first hoop 1 is 1 / 4 circular arc-shaped, and the two are buckled to form a support with a circular cross section.

[0027] In order to make the first hoop 1 and the second hoop 2 have better or more stable supporting effect, the closable hoop adopted by the utility model further comprises a connecting lug plate 3, and the first hoop 1 is connected with the second hoop 2 through the connecting lug plate 3.

[0028] Referring to Figure 4 , the support further comprises a hook 4 arranged on the closable hoop and extending from the side wall of the closable hoop to the top of the closable hoop, and the oil film supply part is wound on the hook 4 alternately.

Claims

1. A telescopic pole oil film coating device characterised in that: The telescopic rod oil film coating device comprises a support and an oil film supply piece (5) movably arranged on the top of the support; the oil film supply piece (5) is annular as a whole; the oil film supply piece (5) is an oil-permeable hemp rope, an oil-permeable cloth strip or an oil-permeable cotton arranged in a surrounding manner.

2. The telescopic pole oiling device of claim 1, wherein: The oil film supply piece (5) is one or multiple, and when the oil film supply piece (5) is multiple, the multiple oil film supply pieces are arranged on the top of the support in sequence from top to bottom.

3. Telescopic pole oil film coating device according to claim 1 or 2, characterized in that: The support comprises a closable hoop, which is hollow and cylindrical as a whole; the oil film supply piece is movably arranged on the top of the closable hoop.

4. The telescopic pole oiling device of claim 3, wherein: The closable hoop comprises a first hoop (1) and a second hoop (2) buckled or attached to the first hoop (1).

5. The telescopic pole oiling device of claim 4, wherein: The structure of the first hoop (1) is completely same or completely different from that of the second hoop (2).

6. The telescopic pole oiling device of claim 5, wherein: The cross section of the first hoop (1) is semicircular, tile-shaped or 1 / 4 circular arc-shaped.

7. A telescopic pole oiling device according to claim 6, characterised in that: The cross section of the second hoop (2) is semicircular, tile-shaped or 3 / 4 circular arc-shaped.

8. A telescopic pole oiling device according to claim 7, characterised in that: The closable hoop further comprises a connecting lug (3), and the first hoop (1) is connected to the second hoop (2) through the connecting lug (3).

9. A telescopic pole oiling device according to claim 8, characterised in that: The support further comprises a hook (4) arranged on the closable hoop and extending from the side wall of the closable hoop to the top of the closable hoop; and the oil film supply piece (5) is interlaced and wound on the hook (4).

Images