CN202629541U

CN202629541U - Automatic lubricating grease injecting device

Info

Publication number: CN202629541U
Application number: CN2012202371534U
Authority: CN
Inventors: 宋飞; 赵卫乐; 傅贻文; 衣胜
Original assignee: Yantai Eddie Precision Machinery Co Ltd
Current assignee: Yantai Eddie Precision Machinery Co Ltd
Priority date: 2012-05-24
Filing date: 2012-05-24
Publication date: 2012-12-26
Anticipated expiration: 2022-05-24

Abstract

The utility model relates to an automatic lubricating grease injecting device, in particular to a vibration type automatic lubricating grease injecting device applied to a hydraulic crushing hammer. The automatic lubricating grease injecting device comprises a valve body assembly and a lubricating grease cup assembly, wherein the valve body assembly comprises a valve block and a lubricating grease output mechanism, a groove is arranged in the middle of the upper surface of the valve block, the lubricating grease output mechanism is arranged inside the valve block, the lubricating grease cup assembly comprises a grease cup and a negative pressure providing mechanism, the negative pressure providing mechanism is fixed on the valve block, and the grease cup is arranged in the groove of the valve block. The automatic lubricating grease injecting device is capable of completely replacing a manual injection method, avoids halt for injection, saves labor force, and is increased in production efficiency; and meanwhile, lubricating grease is uniformly and continuously injected, so that a front housing part and a drill rod of a crushing hammer are lubricated uniformly, therefore, the service life of the crushing hammer is prolonged, and the production cost is lowered.

Description

Automatic lubricating grease filling device

Technical Field

The utility model relates to an automatic filling device of lubricating grease, especially a be applied to automatic filling device of vibrating lubricating grease on hydraulic breaker.

Background

The hydraulic breaking hammer is an engineering breaking device matched with a hydraulic excavator for use, and a drill rod needs to do reciprocating motion with high frequency and high strength in the working process. The size of the mechanical friction between the drill rod of the hydraulic breaking hammer and the front shell bushing determines the service life of the breaking hammer, so that the lubrication between the front shell parts of the breaking hammer is very critical.

At present, most of hydraulic breaking hammer lubricating grease generally adopts a manual filling method, but the manual filling method has the following defects: 1. when manual filling is carried out, the breaking hammer needs to stop working, and the production efficiency is seriously influenced; 2. manual filling can be only added in a small amount at one time, and the uneven lubrication of the front shell and the drill rod of the breaking hammer is easy to cause due to insufficient filling of lubricating grease; 3. due to manual operation, in the actual working process, operators may forget to fill the hammer on time, so that the abrasion of a front shell part and a drill rod of the breaking hammer is aggravated, and the service life of the breaking hammer is shortened.

SUMMERY OF THE UTILITY MODEL

The utility model provides an automatic filling device of vibrating lubricating grease replaces artifical filling, has overcome the various defects that adopt artifical filling method and cause, has prolonged the life of quartering hammer, has reduced manufacturing cost.

The utility model provides a technical scheme as follows: a vibration type lubricating grease automatic filling device comprises a valve body assembly and a lubricating grease oil cup assembly; the valve body assembly comprises a valve block and a lubricating grease output mechanism, wherein a groove is formed in the middle of the upper surface of the valve block, and the lubricating grease output mechanism is installed inside the valve block; the lubricating grease oil cup assembly comprises an oil cup and a negative pressure providing mechanism, the negative pressure providing mechanism is fixed on the valve block, and the oil cup is arranged in the groove of the valve block.

The utility model has the advantages that: manual filling can be completely replaced, stopping filling is avoided, manpower is saved, and production efficiency is improved; meanwhile, lubricating grease is uniformly and continuously filled, so that the shell part of the breaking hammer and the drill rod are uniformly lubricated, the service life of the breaking hammer is prolonged, and the production cost is reduced.

On the basis of the technical scheme, the utility model discloses can also do following improvement.

Furthermore, an external connecting sleeve of an outlet end cover is sleeved outside the oil cup, and the upper part of the oil cup is connected with an oil cup pin.

Furthermore, the left side and the right side of the valve block are respectively connected with a plug and a thread joint, and the outside of the valve block is connected with a grease joint and a regulator for regulating the injection amount of lubricating grease.

Further, the end cap is an inner hexagonal end cap, the connector is a 90-degree wire alignment connector, and at least one grease connector is arranged.

Further, the lubricating grease output mechanism comprises a steel ball, a one-way valve, a plunger and a shifting fork, and the steel ball is arranged in a hollow cavity on the right side of the oil cup; the plunger is arranged below the oil cup, and the left end and the right end of the plunger are respectively connected with the shifting fork and the one-way valve; the shifting fork and the one-way valve are positioned on two sides of the oil cup.

Furthermore, the plunger spring and the plunger sleeve are sequentially connected to the outside of the plunger.

Further, the negative pressure providing mechanism comprises a piston rod, an oil suction pipe, a piston, a spring, an organic glass pipe inner container and a pressing end cover, wherein the piston rod, the oil suction pipe, the piston and the spring are arranged in a hollow cavity formed by the organic glass pipe inner container, the pressing end cover is connected to the top end of the organic glass pipe inner container, the oil suction pipe and the piston are sequentially connected to the outside of the piston rod, and the spring is arranged between the piston and the pressing end cover.

Further, the piston rod is connected with the oil suction pipe through an O-shaped ring fixer, the bottom end of the oil suction pipe is connected with a plugging pin, the top end of the piston rod is provided with a handle, and an inner container outer sleeve is further sleeved outside the inner container of the organic glass pipe.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a three-dimensional perspective view of the present invention.

In the drawings, the components represented by the respective reference numerals are listed below:

1. the device comprises a handle, 2, a locking nut, 3, a compression end cover, 4, an organic glass tube inner container, 5, an inner container outer cover, 6, a spring, 7, a piston, 8, an oil suction tube, 9, a blocking pin, 10, a valve block, 11 and 90-degree screw connectors, 12, a steel ball, 13, a one-way valve, 14, a plunger sleeve, 15, a shifting fork, 16, an inner hexagonal plug, 17, a plunger, 18, a plunger spring, 19, an output end cover outer connecting sleeve, 20, an oil cup pin, 21, an O-shaped ring fixer, 22, a piston rod, 23, a grease connector, 24 and a regulator.

Detailed Description

The principles and features of the present invention are described below in conjunction with the following drawings, the examples given are only intended to illustrate the present invention and are not intended to limit the scope of the present invention.

As shown in fig. 1, the oil cup is embedded in the valve block 10, an output end cover external connecting sleeve 19 is arranged between the oil cup and the valve block, inner hexagonal plugs 16 and 90-degree screw connectors 11 are respectively arranged on the left side and the right side of the valve block 10, a shifting fork 15, a plunger 17 and a one-way valve 13 are sequentially arranged between the inner hexagonal plugs 16 and the 90-degree screw connectors 11, the shifting fork 15 and the plunger 17 are respectively positioned on the left side and the right side of the oil cup, and a plunger spring 18 and a plunger sleeve 14 are sequentially connected to the outside of the plunger 17; a steel ball 12 is arranged in the hollow cavity at the right side of the oil cup, and an oil cup pin 20 is connected to the upper part above the oil cup; the piston rod 22 and the oil suction pipe 8 and the piston 7 which are connected with the outside of the piston rod, and the spring 6 which is arranged between the piston 7 and the compression end cover 3 are all arranged in a hollow cavity formed by the organic glass tube liner 4, the piston rod 22 is connected with the oil suction pipe 8 through an O-shaped ring fixer 21, the bottom end of the oil suction pipe 8 is connected with a plugging pin 9, the top end of the piston rod 22 is provided with a handle 1, the organic glass tube liner 4 is further sleeved with a liner jacket 5, and the compression end cover 3 and the liner jacket 5 are connected by a locking nut 2.

As shown in FIG. 2, the valve block 10 is externally fitted with a regulator 24 and at least one grease fitting 23.

The utility model discloses utilize the invalid vibration that produces in the quartering hammer working process as the power source, the quartering hammer during operation, the vibration of its production makes steel ball 12 among the automatic filling device of vibrating lubricating grease drunkenness about along with the operating frequency of quartering hammer together drunkenness. When the steel ball 12 moves upwards, the steel ball 12 releases the pressure on the shifting fork 15, and the shifting fork 15 also moves upwards due to the movement. Since the pressure of the steel ball 12 on the shift fork 15 has been released, the plunger 17 moves backward under the action of the plunger spring 18. Under the combined action of the vibration force and the plunger thrust, the shifting fork 15 rotates, and the front end of the shifting fork tilts upwards. At this time, due to the movement of the plunger 17, the oil inlet in the middle of the plunger sleeve 14 is opened, and the grease enters the inner cavity of the plunger sleeve 14 through the oil inlet under the pressure of the piston 7. When the steel ball 12 moves downwards, the shifting fork 15 is pressed downwards by the steel ball 12, and the plunger 17 is pushed forwards by the shifting fork 15. The plunger 17 closes the oil inlet while pushing the grease in the plunger sleeve 14 forward when moving forward. Because the plunger 17 moves fast and the check valve 13 at the front end of the plunger is closed, instantaneous high pressure is generated in the closed cavity of the plunger sleeve 14, when the pressure exceeds the limited pressure of the check valve 13, the check valve 13 is opened, lubricating grease is pushed into the oil inlet channel, and the screw joint 11 acts on the breaking hammer through 90 degrees. And then enters the next working cycle.

The function of the regulator 24 on the valve block 10 is to regulate the amount of grease injected into the breaking hammer, and the grease joint 23 is a spare joint for filling the breaking hammer with grease in case of device failure. After the lubricating grease in the oil cup is used up, the lubricating grease can be directly filled into the oil cup through the grease joint 23, the lubricating grease oil cup assembly can be dismounted, and the lubricating grease can be filled into the oil cup by using the self-equipped oil absorption device, and the specific operation process is as follows: the part of the external connecting sleeve 19 of the output end cover on the oil cup is immersed into lubricating grease, then the handle 1 above the oil cup assembly is unscrewed, the piston rod 22 is pushed and pulled back and forth, and when the piston rod 22 is pulled upwards, the plugging pin 9 in the external connecting sleeve 19 of the output end cover is opened under the action of negative pressure in the oil suction pipe 8 to suck the lubricating grease into the oil pipe 8; when the piston rod 22 is pushed down, the O-ring retainer 21 presses the grease in the oil suction pipe 8 downward. At this time, the cup pin 20 is closed, the blocking pin 9 is opened, and the grease smoothly enters the cup. The piston rod 7 is pushed and pulled continuously, the grease enters continuously, and the spring 6 is compressed continuously until the grease is sucked into a limited position. The grease cup assembly is then screwed onto the valve body assembly, at which point the blocking pin 9 is opened and grease can enter the valve block 10.

In addition, in order to obtain an ideal lubricating oil amount at the friction part of the breaking hammer, an oil amount adjusting screw is additionally arranged on the valve block, so that the output amount of the lubricating grease is effectively controlled. The oil quantity observation hole is arranged on the oil cup assembly, the amount of the lubricating grease in the inner container of the organic glass tube can be observed through the oil quantity observation hole, and the lubricating grease can be timely supplemented when the oil quantity is insufficient. In addition, the safety warning line and the warning mark are arranged on the outer cover of the inner container of the oil cup, so that the use safety and the working reliability of the oil feeder are improved.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims

1. An automatic lubricating grease filling device is characterized by comprising a valve body assembly and a lubricating grease cup assembly; wherein,

the valve body assembly comprises a valve block and a lubricating grease output mechanism, wherein a groove is formed in the middle of the upper surface of the valve block, and the lubricating grease output mechanism is arranged inside the valve block;

the lubricating grease oil cup assembly comprises an oil cup and a negative pressure providing mechanism, the negative pressure providing mechanism is fixed on the valve block, and the oil cup is arranged in the groove of the valve block.

2. The automatic lubricating grease filling device according to claim 1, wherein an outlet end cover external connection sleeve is sleeved outside the oil cup, and an oil cup pin is connected to the upper part of the oil cup.

3. The automatic grease filling device according to claim 1, wherein plugs and threading connectors are respectively connected to the left and right sides of the valve block, and a grease connector and a grease injection amount adjuster are connected to the outside of the valve block.

4. The automatic grease filling device according to claim 3, wherein the plug is a hexagon socket plug, the joint is a 90-degree wire-to-wire joint, and at least one grease joint is provided.

5. The automatic lubricating grease filling device according to claim 1 or 2, wherein the lubricating grease output mechanism comprises a steel ball, a one-way valve, a plunger and a shifting fork, and the steel ball is arranged in a hollow cavity on the right side of the oil cup; the plunger is arranged below the oil cup, and the left end and the right end of the plunger are respectively connected with the shifting fork and the one-way valve; the shifting fork and the one-way valve are positioned on two sides of the oil cup.

6. The automatic grease filling device according to claim 5, wherein a plunger spring and a plunger sleeve are connected to the outside of the plunger in this order.

7. The automatic lubricating grease filling device according to claim 1, wherein the negative pressure providing mechanism comprises a piston rod, an oil suction pipe, a piston, a spring, an organic glass tube inner container and a pressing end cover, the piston rod, the oil suction pipe, the piston and the spring are arranged in a hollow cavity formed by the organic glass tube inner container, the pressing end cover is connected to the top end of the organic glass tube inner container, the oil suction pipe and the piston are sequentially connected to the outside of the piston rod, and the spring is arranged between the piston and the pressing end cover.

8. The automatic lubricating grease filling device according to claim 7, wherein the piston rod is connected with an oil suction pipe through an O-shaped ring fixer, the bottom end of the oil suction pipe is connected with a plugging pin, the top end of the piston rod is provided with a handle, and a liner outer sleeve is further sleeved outside the inner container of the organic glass pipe.