KR100460984B1 - An Auto Lubrication Device for Hydraulic Breaker - Google Patents

Abstract

PURPOSE: An automatic lubricating oil supply device of a hydraulic breaker is provided to improve the convenience of a break user by periodically and quantitatively supplying lubricating oil to necessary parts using the difference of the gas pressure in the upper portion of a breaker piston and to extend the life span of a breaker by supplying optical amount of grease. CONSTITUTION: An automatic lubricating oil supply device of a hydraulic breaker comprises an input unit for transmitting the stroke time and force to a compressor using by performing reciprocation at every stroke of a breaker, a compression unit for compressing a spring of a pumping unit by converting the reciprocating motion of the breaker, a pumping unit compressed by the amplified force of the compression unit and discharging grease at specific stroke interval, and a filling unit for supplying grease to the pumping unit and storing the grease.

Description

Automatic Lubrication Device for Hydraulic Breaker {An Auto Lubrication Device for Hydraulic Breaker}

The present invention relates to an automatic lubrication device for a hydraulic breaker, and in detail, to use a gas pressure difference of the piston upper space in the breaker to supply a predetermined amount of lubricating oil at a predetermined number of strokes to a required place.

The hydraulic breaker uses the hydraulic pressure to break the rock or the like by the piston inside the breaker driving the chisel. In the process of performing this operation, the chisel and the chisel guide surface of the hydraulic breaker are subjected to heavy friction and require lubrication.

Currently, most breakers are equipped with lubricating oil (grease) nipples wherever lubrication is required, and users fill the lubricating oil periodically or as needed. This wastes time for the breaker user, damages the breaker if not filled in time, and shortens the life of the breaker.

Some breakers are equipped with an automatic lubrication pump, which automatically discharges grease where it is needed. Conventional automatic lubrication (grease) pumps draw some of the hydraulic oil to operate the breaker, and with the hydraulic force The structure is complicated and large in the way of discharging, and the grease storage container is disposable, which is expensive.

The present invention has been made in order to solve the above-mentioned conventional problems, an object of the present invention, by using the gas pressure difference of the upper space of the piston in the breaker to supply a predetermined amount of lubricating oil at a predetermined number of strokes to the required place In order to minimize the inconvenience of the breaker user, and to supply the optimum amount of grease at a lower cost than the conventional lubrication (grease) supply device to extend the life of the breaker.

In order to achieve the above object, the present invention is attached to a hydraulic breaker to automatically supply lubricating oil (grease) to a required place at every predetermined number of blows, and the number of blows to the compression means by reciprocating each time the breaker is hit. And an input means for transmitting the force, and a compression means for compressing the spring of the pumping means by converting the reciprocating motion of the input means into a rotational motion, Provided is an automatic lubricating oil supply device comprising a pumping means for pumping and a filling means for supplying grease to the pumping means and storing the grease.

In the present invention, the input means is an input piston for direct movement in response to the gas (air or nitrogen gas) pressure change of the piston upper space in the breaker and transmitting a force to the compression means, and the breaker piston is assembled in the input piston It includes a check ball 1 and a check spring 1 for adjusting the flow direction of air by opening when descending and closing when the breaker piston is raised, and an input socket serving as a guide of the input piston and a connector connecting the breaker and the hose. Is done.

In the present invention, the compression means is a sliding bar for receiving a linear reciprocating motion of the input means to rotate the compression shaft, the clutch bearing for rotating the compression shaft by rotating the left and right rotation of the sliding bar to one direction rotation, pumping means to rotate in one direction It includes a compression shaft for transmitting the pumping force to the pumping piston.

In the present invention, the pumping means is a pumping piston which receives the rotational force of the compression shaft and periodically pumps lubricating oil (grease), a compression spring which is compressed by the rotational force of the compression shaft and pushes the pumping piston with repulsive force, and one direction of grease It consists of a check ball 2 and a check spring 2 which acts as a check valve by forming only a flow, and a discharge nipple connecting the discharged grease to a required place and a hose.

In the present invention, the filling means is a grease filling cylinder, which is connected to a grease pump (body) and constitutes a bottom of the filling cylinder, and is assembled in the filling cylinder base to prevent the grease from flowing down when the grease is filled. For the check ball 3 and the check spring 3, the suction discharge plate for sucking and discharging grease, the sealing plate and seal for preventing grease leakage, and the air discharge for discharging air between the filled grease and the suction discharge plate after grease suction. A spring, a discharge spring which assists when the filled grease is discharged by the pumping means, a filling handle that serves as a handle when filling the grease, a filling cover that guides the filling handle and covers the filling body, and stores the grease Filling body made transparent so that grease amount can be easily recognized and assembled to the base of filling container when filling grease to help filling It comprises a filling connector.

Figure 1a is a cross-sectional view schematically showing the operating principle when applying the automatic lubricant supply device according to the present invention to the A-type breaker,

Figure 1b is a cross-sectional view schematically showing the operating principle when applying the automatic lubricant supply device according to the present invention to the type B breaker,

Figure 2 is an external view of the automatic lubricant supply device according to the present invention, 2a is a plan view, 2b is a side view, 2c is a front view,

3A is a cross-sectional view taken along the line A-A of FIG. 2A,

3B is a cross-sectional view taken along the line BB of FIG. 3A;

3C is a cross-sectional view taken along the line C-C of FIG. 3A,

Figure 4a is a view showing the operation of the input means and compression means of the grease pump when the device is mounted on the type A breaker (Fig. 1a),

Figure 4a is a view showing the operation of the input means and compression means of the grease pump when the device is mounted on a type B breaker (Fig. 1b),

5 is a view showing a pumping operation by the compression means and the pumping means of the present invention device,

6 is a view showing a method of refilling grease of the filling means of the present invention device.

* Explanation of symbols for main parts of the drawings

1: input socket 2: input piston

3: check ball 1 4: spring 1

5: sliding bar 6: spring 2

7: compression shaft 8a: clutch bearing 1

8b: clutch bearing 2 9: body

10 cover 11 pumping piston

12 compression spring 13 pumping housing

14 Nut 15 Compression Adjustment Bolt

16: fixing nut 1 17: check ball 2

18: check spring 2 19: discharge nipple

20: Filling base 21: Check ball 3

22: check spring 3 23: suction discharge plate

24: sealing plate 25: thread

26: air discharge spring 27: discharge spring

28: Filling handle 29: Fixing nut 2

30: filling cover 31: filling body

32: filling connector

Figure 1a and Figure 1b is a circuit diagram showing the operation principle of the present invention, Figure 1a is the breaker piston is connected to the outside space is connected to the outside when the breaker piston in the vertical movement freely the air breaker type of the apparatus 1b is a circuit diagram of applying the apparatus to the type of breaker in which the gas pressure changes every time the breaker piston moves up and down because the upper space of the breaker's piston is blocked from the outside and filled with nitrogen gas. to be.

2A, 2B, and 2C are the top view, side view, and front view of this apparatus, respectively.

As shown in FIG. 1 to FIG. 2, the automatic lubrication apparatus of the present invention is composed of a grease pump (P) and a grease filling cylinder (T).

The grease pump P has an input means (refer to 1,2,3,4 in Fig. 3b) that transmits the number of strikes and the force to the compression means by reciprocating at every stroke of the breaker, and the reciprocation of the input means. A compression means (see 5, 6, 7, 8 of FIGS. 3A and 3B) for compressing the spring of the pumping means by converting the motion into rotational motion, and compressed by the amplified force of the compression means, Pumping means (see 11, 12, 13, 14, 15, 16, 17, 18, 19 of FIG. 3C), each of which is organically assembled in the body (9, 10 of FIG. 3A). It is.

The input means of the present invention is an input piston (2) for direct movement in response to the gas (air or nitrogen gas) pressure change of the piston upper space in the breaker and transmitting a force to the compression means, and the interior of the input piston (2) Check ball 1 (3) and check spring 1 (4), which are opened when the breaker piston is lowered and closed when the breaker piston is raised to adjust the direction of air flow, and guide roles and breakers of the input piston (2). It consists of an input socket (1) that serves as a connector for connecting to the hose.

In the present invention, the compression means receives a linear reciprocating motion of the input means, the sliding bar 5 for rotating the compression shaft, and the clutch bearing for rotating the compression shaft by changing the left and right rotational movement of the sliding bar 5 to one-way rotation (8), a compression shaft (7) which rotates in one direction and transmits a pumping force to the pumping piston of the pumping means, and a spring (2) for returning the sliding bar.

In the present invention, the pumping means receives the rotational force of the compression shaft (7) and the pumping piston (11) for periodically pumping lubricating oil (grease), and is compressed by the rotational force of the compression shaft (7) and the pumping piston repulsion force A compression spring 12 that pushes inwards, a check ball 2 (17) and a check spring 2 (18) serving as a check valve by forming only one-way flow of grease, and a discharge nipple connecting the discharged grease to a necessary place and a hose 19, a pumping housing 13 serving as a guide for the pumping piston 11 and the compression spring 12, a nut 14 for fixing the pumping housing 13, and the compression spring 12 Compression adjustment bolt 15 for adjusting the amount of pumping by adjusting the compression force, and the fixing nut 1 (16) for fixing the compression adjustment bolt (15).

The input means, the compression means and the pumping means are organically assembled in the body 9 and the cover 10.

Further, in the present invention, the filling means is a grease filling cylinder (T), which is connected to a grease pump (body) and constitutes a filling cylinder base 20 constituting a lower portion of the filling cylinder, and is assembled in the filling cylinder base 20. Check ball 3 (21) and check spring 3 (22) to prevent grease from flowing down when filling the grease, suction discharge plate 23 to suck and discharge grease, and sealing plate 24 to prevent leakage of grease. And a seal 25, an air discharge spring 26 for discharging air between the filled grease and the suction discharge plate 23 after the suction of the grease, and discharge to assist the discharged grease when discharged by the pumping means. Spring 27, the filling handle 28 that serves as a handle when filling the grease, the filling handle 28 to guide the filling cover (30), the cover of the filling body, the grease to store and easily recognize the amount of grease Filling body (31) made transparent so that the filling, and filling during grease filling Cylinder is assembled on the base 20 consists of a filling connector (see 32 in FIG. 6) to assist filling.

Operation of the present invention configured as described above will be described sequentially based on each operation order.

<Operation 1-1>

Figure 4a is a cross-sectional view showing in sequence the operation phenomenon of the input means and the compression means of the device when the piston upper space of the breaker is applied to the type A breaker of the type that can freely enter the air according to the vertical movement of the breaker piston to be.

In FIG. 1A, when the breaker piston is raised, the air in the piston upper space is increased in pressure. The compressed air is supplied to the input means of the present invention as g1 through the input socket 1 as shown in FIG. 4A. Push the piston 2 back to rotate the sliding bar 5 by a certain amount in the a direction. At this time, the position of the input piston is changed and the compressed air is discharged as g2 through the air outlet of the open input socket.

When the breaker piston hits (falls), the air in the breaker piston upper space is changed to low pressure, and the outside air is sucked into the upper part of the breaker piston through the air inlet as shown by g3 of FIG. 4A, and at this time, the reaction force of the spring 2 (6) As a result, the input piston 2 and the sliding bar 5 return in opposite directions as shown in b.

<Operation 1-2>

Figure 4b is a piston upper space of the breaker is sealed, this space is filled with nitrogen gas is compressed when the breaker piston is raised when applied to the type B breaker of the type to increase the drag force when rebounding when falling, It is a cross section showing the operation phenomena of the input means and the compression means of the apparatus in order.

In FIG. 1B, when the breaker piston is raised, the pressure of the compressed gas in the piston upper space is increased. The pressure rise of the gas acts on the input means of the present invention through the input socket 1 as shown in FIG. 4B. 2) Push back to rotate the sliding bar (5) by a certain amount in the a direction.

When the breaker piston strikes (falls), the pressure of the compressed gas in the breaker piston upper space decreases and the input piston 2 and the sliding bar 5 are returned in opposite directions by the reaction force of the spring 2 6.

As shown in Figs. 2A, 3B and 4A, the shape of the input socket 1 having the air inlet port and the air outlet port is a shape when it is applied to an A type breaker as in the case of &quot; Operation 1-1 &quot; When applied to the type breaker, the shape of the input socket 1 is sealed as shown in FIG. 4B so that nitrogen gas on the breaker piston can be applied to the input means without leakage.

<Operation 2>

As in the above operations <1-1> and <1-2>, if the sliding bar 5 rotates by a certain amount in the a direction and then rotates in the opposite direction b by the same amount, The clutch bearing 1 8a transmits the movement direction and the force of the sliding bar 5 to the compression shaft 7 only in the a1 direction. Therefore, the compression shaft 7 is fixed by the clutch bearing 2 8b when the sliding shaft 5 rotates by a predetermined amount in the a1 direction and the sliding bar 5 rotates in the opposite direction.

For example, if the sliding bar 5 reciprocates by an angle of 4 ° according to the reciprocating stroke of the input piston 2, the compression shaft 7 has 90 times (360 ° ÷ 4) of the input piston 2. ° = 90) Each round trip is one turn. That is, the breaker makes one revolution every 90 hits.

<Operation 3>

FIG. 5 shows a sequence of pumping lubricating oil (grease) in accordance with the rotation of the compression shaft (7).

As in the operation 2, the compression shaft 7 compresses the pumping piston 11 while rotating at a constant cycle, and when the pumping piston rotates a predetermined amount as shown in the pumping operation 3 of FIG. 5, the pumping piston that is compressed is applied to the repulsion of the compression spring 12. This causes the grease to be pumped in the p direction.

<Action 4>

By repeating operation 1 to operation 3, a predetermined amount of grease is discharged to a required position for every predetermined number of strikes of the breaker.

For example, if the sliding bar 5 has a rotation angle of 4 °, the pumping cross section of the pumping piston 11 at 0.5 cm 2 and the pumping stroke at 0.4 cm as illustrated in operation 2, Every 90 strikes, 0.2cc of grease will be supplied to the required location.

<Operation 5>

6 is a view illustrating a method of refilling a grease in a grease filling container according to a filling order. When most of the grease (lubricating oil) is consumed through the transparent body 31, the filling container is separated from the grease pump (FIG. 2b), and the filling connecting pipe 32 is assembled as in the filling operation 1 and grease is filled as in the filling operation 2. Fill with suction. The sucked grease is not discharged by the check ball 3 (21) and the check spring 3 (22) of the filling container base, and the air in the upper part of the filling container pushes the filling handle 28 in the d direction after the suction of the grease (25). The air discharge spring 26 is pushed to create a space between the seal and the suction discharge plate 23 and falls into the space as g6.

After filling, the filling handle 28 is pushed in and reassembled to the grease pump. At this time, even if the filling handle is pushed in, the sealing plate 24 is pushed by the pressure of the grease, and the sealing plate and the seal adhere to the suction discharge plate 23. Is not leaking.

When supplying lubricating oil to the lubrication necessary point of construction machinery equipment by using the device of the present invention, eliminating the need to periodically fill the lubricating oil by manpower, and operates according to the actual number of blows of the breaker, It can reduce environmental pollution and extend the life of construction equipment. In addition, by using a refilling lubricant storage container (grease filling container) has a useful effect that can be lubricated at a lower cost than the system using a disposable storage container.

Claims (5)

delete delete delete delete It is attached to the hydraulic breaker to automatically supply lubricating oil according to the number of operation of the breaker.The input means transfers the number of hits and the force to the compression device by linear reciprocating movement every time the breaker is hit. A compression means for compressing the spring of the pumping means by converting the motion into a rotational motion, a pumping means compressed by the amplified force of the compression means and discharging grease at a predetermined number of strokes, and supplying grease to the pumping means, In the automatic lubricant supply device for a hydraulic breaker comprising a grease filling container for storing grease, The input means is directly assembled in response to the gas (air or nitrogen gas) pressure change of the piston upper space in the breaker and the input piston (2) for transmitting a force to the compression means, and assembled inside the input piston (2) Check ball 1 (3) and check spring 1 (4), which open when the breaker piston is lowered and close when the breaker piston is raised to adjust the direction of air flow, and guide roles of the input piston (2) and breaker and hose Consists of an input socket (1) that serves as a connector to connect to, The compression means receives a linear reciprocating motion of the input means, and the sliding bar 5 rotates the compression shaft 7, and the left and right rotational movements of the sliding bar 5 are rotated in one direction to rotate the compression shaft 7. And a clutch bearing (8), a compression shaft (7) which rotates in one direction and transmits a pumping force to the pumping piston of the pumping means, and a spring (2) for returning the sliding bar (5) to operate the breaker uniformly. Delivers the compressive force to the pumping means every time, The pumping means receives the rotational force of the compression shaft (7) and the pumping piston (11) for periodically pumping lubricating oil (grease), and is compressed by the rotational force of the compression shaft (7) and then repulsing the pumping piston (11) A compression spring 12 that pushes inwards, a check ball 2 (17) and a check spring 2 (18) serving as a check valve by forming only one-way flow of grease, and a discharge nipple connecting the discharged grease to a necessary place and a hose 19, a pumping housing 13 serving as a guide for the pumping piston 11 and the compression spring 12, a nut 14 for fixing the pumping housing 13, and a compression force of the compression spring 12 Compression adjustment bolt (15) for adjusting the pumping amount by adjusting the made and comprises a fixing nut 1 (16) for fixing the compression adjustment bolt (15), The filling means is a grease filling cylinder (T), which is connected to a grease pump (body) and constitutes a filling cylinder base (20), which is assembled in the filling cylinder base (20) when filling grease. Check ball 3 (21) and check spring 3 (22) to prevent grease from flowing down, suction discharge plate (23) to suck and discharge grease, sealing plate (24) and seal (25) to prevent grease leakage. ), An air discharge spring 26 for discharging air between the filled grease and the suction discharge plate 23 after suctioning the grease, and a discharge spring 27 which assists the filled grease when discharged by the pumping means. And a filling handle 28 serving as a handle when filling grease, a filling cover 30 which guides the filling handle 28 and a cover of the filling body, and a grease to store and easily recognize the amount of grease. Manufactured filling body (31) and filling bay when filling grease Automatic lubricating oil supply for the hydraulic breaker, characterized in that comprises a filling pipe connection (32) that is to help the filling assembly (20).