Cylinder body of hydraulic rock drill

Abstract

The utility model belongs to the technical field of rock drills, and particularly relates to a hydraulic rock drill cylinder body which comprises a hydraulic cylinder body shell, a commutator detachably arranged on the top of the hydraulic cylinder body shell, an energy accumulator and a hydraulic pump detachably arranged on the two sides of the hydraulic cylinder body shell, a booster arranged at one end of the hydraulic cylinder body shell, and a hydraulic pump arranged at the other end of the hydraulic cylinder body shell. An oil leakage detection device is arranged below the booster; a piston rod is transversely arranged in the hydraulic cylinder body shell, and the end, corresponding to the piston rod and close to the booster, of the hydraulic cylinder body shell is fixedly connected with an isolation disc. According to the hydraulic booster, hydraulic oil permeating into the hydraulic chamber can flow out through the design of the leakage hole, and the design of the air blocking ring and the oil guide hole can be carried out under the condition that the booster is not affected; through the design of the oil leakage detection device, permeated hydraulic oil can be collected, an alarm is given according to the permeation amount of the hydraulic oil, and the oil leakage detection device can be installed at the position below the booster to facilitate cleaning.

Description

TECHNICAL FIELD

[0001] The utility model belongs to rock drill technology field, concretely relates to a hydraulic rock drill cylinder body. BACKGROUND

[0002] The cylinder body of the hydraulic rock drill is one of the core components in its hydraulic system, usually referring to the shell part of the hydraulic cylinder. The hydraulic cylinder is a key device that converts hydraulic energy into mechanical energy, responsible for providing thrust or power to push the rock drill head or other working components for rock breaking work. The cylinder body of the hydraulic rock drill needs to consider high strength, high wear resistance, and pressure resistance requirements during design and manufacturing to cope with the huge pressure and impact force generated during rock drilling work.

[0003] Problems existing in the prior art:

[0004] The existing hydraulic rock drill cylinder body has a piston rod installed inside, which reciprocates under the action of the reverser and gear pump to perform rock drilling work. A gas bag is often designed at the end of the piston rod to push and impact it. The hydraulic oil in the hydraulic oil chamber adjacent to the gas bag chamber can easily leak into the gas bag chamber when the isolation sleeve is damaged and aged. This is not easily detected from the outside, resulting in waste of hydraulic oil and reduced gas bag pushing effect. Utility model content

[0005] The utility model aims to provide a hydraulic rock drill cylinder body, which can make the hydraulic oil in the hydraulic chamber seep out through the design of the leakage hole. The design of the air barrier ring and the oil guide hole can be performed without affecting the booster. The design of the oil leakage detection setting can collect the seeped hydraulic oil, alarm according to the seepage amount of the hydraulic oil, and be installed at a position below the booster for easy cleaning.

[0006] The technical solutions adopted by the utility model are as follows:

[0007] A hydraulic rock drill cylinder body comprises a hydraulic cylinder body shell, a reverser is detachably arranged on the top of the hydraulic cylinder body shell, an energy accumulator and a hydraulic pump are detachably arranged on both sides of the hydraulic cylinder body shell, a booster is arranged at one end of the hydraulic cylinder body shell, and an oil leakage detection setting is arranged below the booster.

[0008] The inside of the hydraulic cylinder shell is transversely provided with a piston rod, and the hydraulic cylinder shell is fixedly connected with a partition disc at the end close to the booster corresponding to the piston rod, the piston rod is slidingly inserted with the partition disc, the hydraulic cylinder shell is provided with an oil collecting groove at the side close to the booster corresponding to the partition disc, the bottom of the oil collecting groove is provided with an oil seepage hole, an air blocking ring is installed in the oil seepage hole, the bottom of the air blocking ring is provided with an oil guiding hole, the oil guiding hole is in communication with the oil seepage hole, and the oil leakage detection device is provided with an oil receiving groove at the position below the oil guiding hole.

[0009] The oil leakage detection device is slidingly installed with the hydraulic cylinder shell, one side of the oil leakage detection device is provided with a limiting assembly, and the oil leakage detection device is also provided with an oil leakage detection assembly at the position corresponding to the oil receiving groove.

[0010] The limiting assembly comprises a T-shaped strip, the T-shaped strip is located at the position of both ends of the top of the oil leakage detection device and is fixedly connected with the oil leakage detection device, the hydraulic cylinder shell is provided with a T-shaped sliding groove at the position corresponding to the T-shaped strip, the T-shaped strip is slidingly connected with the T-shaped sliding groove, the top of the oil leakage detection device is provided with a limiting cap, the oil leakage detection device is provided with a vertical sliding groove at the position corresponding to the limiting cap, the limiting cap is slidingly installed with the vertical sliding groove, a limiting spring is fixedly connected between the limiting cap and the vertical sliding groove, the hydraulic cylinder shell is provided with a limiting insertion hole at the position corresponding to the limiting cap, and the limiting cap is connected with the limiting insertion hole.

[0011] The bottom of the limiting cap is fixedly connected with a connecting rod, one side of the oil leakage detection device is transversely slidingly installed with a dismounting button, one side of the dismounting button close to the connecting rod is fixedly connected with an inclined sliding block, the end of the connecting rod extends to the inside of the inclined sliding block and is fixedly connected with an inclined plate, the top of the inclined sliding block is provided with an inclined groove, and the inclined plate is slidingly installed with the inclined groove.

[0012] The oil leakage detection assembly comprises an inclined cavity, the inclined cavity is located at one side of the oil receiving groove and is in communication with the middle position thereof, a plurality of detection columns are vertically arranged in the inclined cavity, the plurality of detection columns are arrayed and the lengths thereof are sequentially increased, a limiting conductive frame is fixedly connected with the inclined cavity at the position corresponding to the detection columns, and the limiting conductive frame is arranged on the outer side of the detection columns and the detection columns are slidingly installed with the limiting conductive frame.

[0013] The bottom of the detection column is fixedly connected with a floating sleeve, the top of the detection column is provided with an electric receiving plate, the detection column is connected with weak electricity through the limiting conductive frame, the electric receiving plate is also connected with weak electricity, and the oil leakage detection device is provided with a warning lamp at the position above the dismounting button.

[0014] The technical effects achieved by the utility model are as follows:

[0015] The utility model discloses, through the design of leakage hole, can make the hydraulic oil that permeates in the hydraulic chamber flow out, wherein the design of air barrier ring and oil guide hole can be carried out under the condition of not influencing the booster.

[0016] The utility model discloses, through the design of oil leakage detection setting can collect the hydraulic oil that permeates, according to the permeation of hydraulic oil alarm, and can be installed in the position below the booster convenient to clean. DRAWINGS

[0017] Figure 1 It is the whole structure schematic diagram of the utility model;

[0018] Figure 2 It is the whole structure sectional view in the utility model;

[0019] Figure 3 It is the structure sectional view of hydraulic cylinder body shell in the utility model;

[0020] Figure 4 It is the structure schematic diagram of air barrier ring in the utility model;

[0021] Figure 5 It is the structure schematic diagram of oil leakage detection setting in the utility model;

[0022] Figure 6 It is the structure sectional view of oil leakage detection setting in the utility model;

[0023] Figure 7 It is the structure diagram of limit component in the utility model;

[0024] Figure 8 It is the structure diagram of oil leakage detection component in the utility model.

[0025] In the drawings, the component list that each sign represents is as follows:

[0026] 1, hydraulic cylinder body shell;2, reversing device;3, energy accumulator;4, booster;5, oil leakage detection setting;6, hydraulic pump;101, piston rod;102, isolation disc;103, oil collecting groove;501, air barrier ring;502, oil guide hole;503, oil collecting groove;504, T-shaped strip;505, limit cap;506, dismounting button;507, limit spring;508, inclined sliding block;509, connecting rod;5010, warning light;510, oil leakage detection component;511, inclined cavity;512, detection column;514, limit conductive frame;515, electric connection plate;516, floating sleeve. DETAILED DESCRIPTION

[0027] In order to make the purpose and advantages of the utility model more clearly, the utility model is specifically described below in combination with examples. It should be understood that the following text is only used to describe one or several specific embodiments of the utility model and does not strictly limit the protection scope of the utility model specifically requested.

[0028] As Figures 1-6 shown, a hydraulic rock drill cylinder body comprises a hydraulic cylinder body shell 1, a reversing device 2 is detachably arranged on the top of the hydraulic cylinder body shell 1, an energy accumulator 3 and a hydraulic pump 6 are detachably arranged on the two sides of the hydraulic cylinder body shell 1, a booster 4 is arranged at one end of the hydraulic cylinder body shell 1, and an oil leakage detection device 5 is arranged at the lower position of the booster 4; a piston rod 101 is horizontally arranged inside the hydraulic cylinder body shell 1, a partition disc 102 is fixedly connected to the end of the piston rod 101 close to the booster 4, the piston rod 101 and the partition disc 102 are slidingly inserted and connected, an oil collecting groove 103 is formed on the side of the hydraulic cylinder body shell 1 close to the booster 4 corresponding to the partition disc 102, an oil seepage hole is formed in the bottom of the oil collecting groove 103, an air blocking ring 501 is arranged inside the oil seepage hole, an oil guiding hole 502 is formed in the bottom of the air blocking ring 501, the oil guiding hole 502 is in communication with the oil seepage hole, and an oil receiving groove 503 is formed in the lower position of the oil leakage detection device 5 corresponding to the oil guiding hole 502.

[0029] When the piston rod 101 reciprocates, the partition disc 102 sleeved on the outer side thereof rubs more, the sealing ring inside is often easy to wear, and when the sealing ring wears, the oil leakage is prone to occur; since the booster 4 is internally filled with booster air, when the hydraulic oil seeps therein, the volume of the booster 4 is reduced, and the pressure in the hydraulic oil chamber is also reduced, which affects the power of the piston rod 101; when the hydraulic oil seeps into the other side of the partition disc 102 through the sealing ring, it first flows into the oil collecting groove 103 and then seeps into the inside of the air blocking ring 501 and the oil guiding hole 502; the air blocking ring 501 is relatively dense, and when the booster 4 assists the piston rod 101, only a small amount of gas can pass through the air blocking ring 501, and the influence can be ignored; when the hydraulic oil passes through the oil guiding hole 502, it drips into the inside of the oil receiving groove 503 under the action of gravity.

[0030] Referring to the drawings Figures 5-7, the limiting component includes a T-shaped strip 504, the T-shaped strip 504 is located at both ends of the top of the oil leakage detection device 5 and is fixedly connected with the oil leakage detection device 5, the hydraulic cylinder body shell 1 is provided with a T-shaped sliding groove corresponding to the position of the T-shaped strip 504, the T-shaped strip 504 is slidably connected with the T-shaped sliding groove, the top of the oil leakage detection device 5 is provided with a limiting cap 505, the oil leakage detection device 5 is provided with a vertical sliding groove corresponding to the position of the limiting cap 505, the limiting cap 505 is slidably installed in the vertical sliding groove, a limiting spring 507 is fixedly connected between the limiting cap 505 and the vertical sliding groove, the hydraulic cylinder body shell 1 is provided with a limiting insertion hole corresponding to the position of the limiting cap 505, and the limiting cap 505 is connected with the limiting insertion hole; the bottom of the limiting cap 505 is fixedly connected with a connecting rod 509, one side of the oil leakage detection device 5 is slidably provided with a dismounting button 506, one side of the dismounting button 506 close to the connecting rod 509 is fixedly connected with an inclined sliding block 508, the end of the connecting rod 509 extends into the interior of the inclined sliding block 508 and is fixedly connected with an inclined plate, and the top of the inclined sliding block 508 is provided with an inclined groove, and the inclined plate is slidably installed in the inclined groove.

[0031] According to the above structure, the oil leakage detection device 5 can be slidably installed through the T-shaped strip 504 and the T-shaped sliding groove provided in the hydraulic cylinder body shell 1 corresponding to the T-shaped strip 504, when the oil leakage detection device 5 is inserted into the lower part of the hydraulic cylinder body shell 1, the limiting cap 505 is connected with the limiting insertion hole under the action of the limiting spring 507, so that the oil leakage detection device 5 is limited, when it is necessary to dismount the oil leakage detection device 5 for cleaning, the dismounting button 506 only needs to be pressed to move towards the limiting cap 505, and the inclined sliding block 508 also moves, since the top of the inclined sliding block 508 is inclined, under the sliding action of the inclined plate, the limiting cap 505 moves downward to be disconnected with the limiting insertion hole, so that the oil leakage detection device 5 can be taken out.

[0032] Referring to the drawings Figure 8 The oil leakage detection assembly 510 includes an inclined cavity 511, the inclined cavity 511 is located on one side of the oil receiving groove 503 and is communicated with the middle position, a plurality of detection columns 512 are vertically arranged in the interior of the inclined cavity 511, the plurality of detection columns 512 are arrayed and the lengths are sequentially increased, a limiting conductive frame 514 is fixedly connected with the inclined cavity 511 corresponding to the positions of the detection columns 512, the limiting conductive frame 514 is sleeved outside the detection columns 512 and the detection columns 512 are slidably installed in the limiting conductive frame 514; a floating sleeve 516 is fixedly connected with the bottom of the detection column 512, and a power receiving plate 515 is arranged at the top of the detection column 512, the detection column 512 is connected with weak electricity through the limiting conductive frame 514, and the power receiving plate 515 is also connected with weak electricity, and the oil leakage detection device 5 is provided with a warning lamp 5010 corresponding to the position above the dismounting button 506.

[0033] According to the above structure, when hydraulic oil drops into the oil receiving groove 503, the hydraulic oil moves to the middle position of the oil receiving groove 503, and then enters the inclined cavity 511, and since the bottom of the inclined cavity 511 is a slope, the hydraulic oil is concentrated at the bottom end, at this time, the floating sleeve 516 at the bottom of the detection column 512 at the bottom end is in contact with the hydraulic oil, and is pushed upward by the buoyancy, when the top of the detection column 512 is in contact with the power receiving plate 515, a path is formed, an electrical signal is transmitted to the warning lamp 5010 to light up a warning lamp 5010, and as the hydraulic oil increases, more and more floating sleeves 516 are in contact with the hydraulic oil and float up to light up the warning lamp 5010, and an alarm signal can be sent when a preset warning lamp 5010 is lit by PLC programming control.

[0034] The working principle of the utility model is: when the piston rod 101 reciprocates, the isolation disc 102 sleeved outside it rubs more, and the sealing ring inside is often easy to wear, and when the sealing ring wears, oil leakage is easy to occur, when hydraulic oil drops into the oil receiving groove 503, the hydraulic oil moves to the middle position of the oil receiving groove 503, and then enters the inclined cavity 511, and since the bottom of the inclined cavity 511 is a slope, the hydraulic oil is concentrated at the bottom end, at this time, the floating sleeve 516 at the bottom of the detection column 512 at the bottom end is in contact with the hydraulic oil, and is pushed upward by the buoyancy, when the top of the detection column 512 is in contact with the power receiving plate 515, a path is formed, an electrical signal is transmitted to the warning lamp 5010 to light up a warning lamp 5010, and as the hydraulic oil increases, more and more floating sleeves 516 are in contact with the hydraulic oil and float up to light up the warning lamp 5010, and an alarm signal can be sent when a preset warning lamp 5010 is lit by PLC programming control.

[0035] The above is only the preferred embodiment of the utility model, and it should be pointed out that for ordinary skilled persons in the technical field, some improvements and refinements can be made without departing from the principle of the utility model, and these improvements and refinements should also be regarded as the protection range of the utility model. The structures, devices and operation methods not specifically described and explained in the utility model are implemented according to conventional means in the field without special description and limitation.

Claims

1. A hydraulic rock drill cylinder, characterized in that Include: Hydraulic cylinder shell (1), the top of the hydraulic cylinder shell (1) is detachably provided with a reversing device (2), both sides of the hydraulic cylinder shell (1) are detachably provided with an energy accumulator (3) and a hydraulic pump (6), one end of the hydraulic cylinder shell (1) is provided with a booster (4), and the lower position of the booster (4) is provided with an oil leakage detection device (5); The inside of the hydraulic cylinder shell (1) is transversely provided with a piston rod (101), and the end of the hydraulic cylinder shell (1) close to the booster (4) is fixedly connected with a isolation disc (102) corresponding to the piston rod (101), the piston rod (101) and the isolation disc (102) are slidingly inserted and connected, and the side of the hydraulic cylinder shell (1) close to the booster (4) is provided with an oil collecting groove (103) corresponding to the isolation disc (102), the bottom of the oil collecting groove (103) is provided with an oil seepage hole, the oil seepage hole is internally provided with an air blocking ring (501), the bottom of the air blocking ring (501) is provided with an oil guide hole (502), the oil guide hole (502) is communicated with the oil seepage hole, and the lower position of the oil leakage detection device (5) is provided with an oil receiving groove (503) corresponding to the oil guide hole (502). The oil leakage detection device (5) and the hydraulic cylinder shell (1) are slidingly installed, one side of the oil leakage detection device (5) is provided with a limiting assembly, and the position of the oil leakage detection device (5) corresponding to the oil receiving groove (503) is further provided with an oil leakage detection assembly (510).

2. A hydraulic rock drill cylinder according to claim 1, characterized in that: The limiting assembly comprises a T-shaped strip (504), the T-shaped strip (504) is located at the position of both ends of the top of the oil leakage detection device (5) and is fixedly connected with the oil leakage detection device (5), the hydraulic cylinder shell (1) is provided with a T-shaped sliding groove corresponding to the position of the T-shaped strip (504), the T-shaped strip (504) and the T-shaped sliding groove are slidingly connected, a limiting cap (505) is arranged on the top of the oil leakage detection device (5), a vertical sliding groove is formed in the oil leakage detection device (5) corresponding to the position of the limiting cap (505), the limiting cap (505) and the vertical sliding groove are slidingly installed, a limiting spring (507) is fixedly connected between the limiting cap (505) and the vertical sliding groove, and a limiting insertion hole is arranged in the hydraulic cylinder shell (1) corresponding to the position of the limiting cap (505).

3. A hydraulic rock drill cylinder according to claim 2, characterized in that: The bottom of the limiting cap (505) is fixedly connected with a connecting rod (509), a dismounting button (506) is slidingly installed on one side of the oil leakage detection device (5), an inclined sliding block (508) is fixedly connected to one side of the dismounting button (506) close to the connecting rod (509), the end of the connecting rod (509) extends into the inside of the inclined sliding block (508) and is fixedly connected with an inclined plate, an inclined groove is formed in the top of the inclined sliding block (508), and the inclined plate and the inclined groove are slidingly installed.

4. A hydraulic rock drill cylinder according to claim 1, characterized in that: The oil leakage detection assembly (510) comprises an inclined cavity (511) located at one side of the oil receiving groove (503) and communicating with the middle position thereof, a plurality of detection columns (512) vertically arranged inside the inclined cavity (511), the plurality of detection columns (512) being arrayed and sequentially increasing in length, a limiting conductive frame (514) fixedly connected to the position corresponding to the detection column (512) inside the inclined cavity (511), and the limiting conductive frame (514) being sleeved outside the detection column (512) and the detection column (512) being slidingly installed on the limiting conductive frame (514).

5. A hydraulic rock drill cylinder according to claim 4, characterized in that: The bottom of the detection column (512) is fixedly connected with a floating sleeve (516), the top of the detection column (512) is provided with an electric receiving plate (515), the detection column (512) is connected with weak current through the limiting conductive frame (514), the electric receiving plate (515) is also connected with weak current, and the oil leakage detection assembly (5) is provided with a warning lamp (5010) above the position corresponding to the dismounting button (506).

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