Automatic grease trap for hydraulic breakers

Abstract

This utility model discloses an automatic grease gun for a hydraulic breaker, comprising a housing, a grease can, a high-pressure oil pipe connector, a plug, a spring, a piston, a ball, a grease cylinder, a grease flow regulating valve, and a grease outlet oil pipe connector. The grease can is inserted into the housing and connected to the grease cylinder inside the housing. One end of the grease cylinder is connected to one end of the piston located inside the housing, and the other end of the grease cylinder is connected to the grease outlet oil pipe connector through the grease flow regulating valve. The other end of the piston is connected to the high-pressure oil pipe connector through the plug. This automatic grease gun for a hydraulic breaker uses a right-end oil pipe connector connected to the constant and high pressure of the hydraulic breaker to provide high pressure for the automatic grease gun. This ingenious design not only saves on high-pressure equipment but also greatly simplifies the structure. It can automatically grease the hydraulic breaker during its working intervals. Its simple structure, low manufacturing cost, and wide application range allow for widespread use.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic breaker technology, specifically to an automatic grease device for a hydraulic breaker. Background Technology

[0002] Hydraulic breakers have two grease fitting methods: automatic and manual. Manual grease fitting involves manually injecting grease through the grease nipple on the front cylinder by holding the grease can. However, manual grease fitting requires the excavator operator to stop the machine periodically to manually inject grease, ensuring efficient lubrication. In practice, operators often forget to manually inject grease. Existing manual grease fitting methods have the following problems: 1. They require manual injection by the operator, resulting in low efficiency and the inability to grease while operating the excavator; 2. They have limited application range and poor convenience; 3. Manual grease fitting does not allow for grease flow adjustment, leading to poor lubrication results. Utility Model Content

[0003] The purpose of this utility model is to provide an automatic grease dispenser for a hydraulic breaker. During use, it should be able to automatically dispense grease, allowing for simultaneous grease dispensing while the excavator is operating, resulting in high efficiency and good performance. It should support grease supply devices other than grease cans, requiring only grease to be added through the grease filling port to maintain normal equipment operation. This allows it to handle various emergencies on-site, greatly improving the applicability and convenience of this utility model. Furthermore, the grease flow rate can be adjusted via a screw, ensuring good performance.

[0004] To achieve the above objectives, this utility model provides the following technical solution: an automatic grease device for a hydraulic breaker, comprising a housing, a grease can, a high-pressure oil pipe connector, a plug, a spring, a piston, a ball, a grease cylinder, a grease flow regulating valve, and a grease outlet oil pipe connector; the grease can is inserted into the housing and connected to the grease cylinder inside the housing, one end of the grease cylinder is connected to one end of the piston disposed inside the housing, the other end of the grease cylinder is connected to the grease outlet oil pipe connector through the grease flow regulating valve, the other end of the piston is connected to the high-pressure oil pipe connector through the plug, a plug is also provided between the other end of the piston and the housing, and a spring surrounds the outside of the piston.

[0005] More preferably, a spring retaining cap is provided between the spring and the plug, the spring and the spring retaining cap are fixedly connected, and the spring retaining cap is connected to the other end of the piston by a thread.

[0006] More preferably, a fixing sleeve is provided on the outer side of one end of the piston, the fixing sleeve is fixed to the housing, and the piston slides through the fixing sleeve.

[0007] More preferably, the butter flow regulating valve is provided with an internal spring.

[0008] More preferably, one end of the inner spring contacts the ball, and the other end of the inner spring is connected to the adjusting screw, which is fixed to the housing by a nut.

[0009] More preferably, the grease cylinder is fixed to the housing by a pin.

[0010] A further preferred embodiment includes a manual grease-applying hole, which is inserted into the housing and connected to the grease cylinder.

[0011] A further preferred embodiment includes a grease filling hole, which is inserted into the housing and connected to the grease cylinder.

[0012] In a further preferred embodiment, a sealing ring is provided between the butter container and the shell.

[0013] More preferably, the high-pressure oil pipe joint is connected to the constant high pressure of the hydraulic breaker.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. The automatic grease device for the hydraulic breaker of this utility model uses a right-end oil pipe connector to connect to the constant and high pressure of the hydraulic breaker, which is used to provide high pressure to the automatic grease device. This ingenious design not only saves high-pressure equipment, but also greatly simplifies the structure. In addition, this utility model also uses a piston to move under high pressure to automatically grease, which can automatically grease during the working interval of the hydraulic breaker. Its structure is simple, the manufacturing cost is low, and the application range is wide, so it can be widely promoted and used.

[0016] 2. The automatic grease applicator of this invention connects to the grease hole in the middle cylinder, allowing grease to be injected through the hole. The grease then flows through pipes to the inner and outer sleeves of the front cylinder, providing lubrication. Compared to manual grease application, automatic grease application is simpler to operate, provides better lubrication, increases the service life of the hydraulic breaker, and reduces the failure rate of related equipment.

[0017] 3. This utility model has a plug between the high-pressure oil pipe joint and the piston. This plug design can throttle the flow, reduce the flow rate and pressure reaching the piston, and protect other components.

[0018] 4. The grease cylinder of this utility model is fixed to the shell by a pin, which is convenient for disassembly and installation. It does not require changing the structure of the grease cylinder. Commonly available grease cylinders can be used for quick replacement and installation, thereby greatly improving the application scope and convenience of this utility model.

[0019] 5. The design of the manual grease fitting hole in this utility model can expand its scope, enabling both automatic and manual grease fitting. This can be selected according to the site conditions. When manually grease fitting, the high-pressure oil pipe joint does not need to be connected to the constant high pressure of the hydraulic breaker. It is only necessary to connect the manual grease fitting hole to the manual grease fitting equipment, manually inject pressure into the grease cylinder, press the grease cylinder into the grease flow regulating valve, and then the grease is pressed into the grease outlet oil pipe joint through the grease flow regulating valve to supply grease to the hydraulic breaker.

[0020] 6. This utility model also features a grease filling hole; the grease filling hole is inserted into the housing and connected to the grease cylinder. This design facilitates the replenishment of grease and can also support grease supply devices other than the grease tank. Simply add grease through the grease filling hole to maintain normal operation of the equipment. This can cope with various emergencies on site and greatly improve the application scope of this utility model.

[0021] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0022] Figure 1 This is a diagram of the internal structure of the present invention;

[0023] Figure 2 This is a three-dimensional cross-sectional view of the internal structure of this utility model;

[0024] Figure 3 This is a perspective view of the internal structure of this utility model;

[0025] Figure 4 This is a perspective view of the present utility model;

[0026] Figure 5 This is a front structural view of the present invention.

[0027] The components are as follows: 1. Grease container; 2. High-pressure oil pipe connector; 3. Plug; 4. Plug; 5. Piston; 6. Spring retaining cap; 7. Spring; 8. Retaining sleeve; 9. Ball; 10. Grease cylinder; 11. Inner spring; 12. Nut; 13. Adjusting screw; 14. Grease flow regulating valve; 15. Pin; 16. Grease outlet oil pipe connector; 17. Manual grease filling hole; 18. Grease filling hole; 19. Housing. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0030] Example

[0031] To address the aforementioned problems, this utility model provides a technical solution: an automatic grease device for a hydraulic breaker, such as... Figure 1-5 As shown, the device includes a housing 19, a grease can 1, a high-pressure oil pipe connector 2, a plug 3, a spring 7, a piston 5, a ball 9, a grease cylinder 10, a grease flow regulating valve 14, and a grease outlet oil pipe connector 16. The grease can 1 is inserted into the housing 19 and connected to the grease cylinder 10 inside the housing 19. One end of the grease cylinder 10 is connected to one end of the piston 5 located inside the housing 19. The other end of the grease cylinder 10 is connected to the grease outlet oil pipe connector 16 through the grease flow regulating valve 14. The other end of the piston 5 is connected to the high-pressure oil pipe connector 2 through the plug 3. A plug 4 is also provided between the other end of the piston 5 and the housing 19. A spring 7 surrounds the outside of the piston 5. A spring fixing cap 6 is provided between the spring 7 and the plug 4. The spring 7 and the spring fixing cap 6 are fixedly connected. The spring fixing cap 6 is connected to the other end of the piston 5 through a thread. A fixing sleeve 8 is provided on the outside of one end of the piston 5. The fixing sleeve 8 is fixed to the housing 19. The piston 5 slides through the fixing sleeve 8.

[0032] The grease flow regulating valve 14 has an internal spring 11. One end of the internal spring 11 is in contact with the ball 9, and the other end of the internal spring 11 is connected to the adjusting screw 13. The adjusting screw 13 is fixed to the housing 19 by the nut 12.

[0033] When it is necessary to adjust the grease flow rate, turn the adjusting screw 13. The rotation of the adjusting screw 13 causes the inner spring 11 to move toward the piston 5, which in turn causes the ball 9 to move closer to or further away from the piston 5, thereby changing the distance between the ball 9 and the piston 5 and thus adjusting the grease flow rate. Ultimately, the grease flow rate regulating valve 14 can adjust the amount of grease in the grease cylinder 10 through the adjusting screw 13; the grease can 1 can supply grease to the grease cylinder 10; and the grease cylinder 10 can store grease. This adjustment is very simple and convenient.

[0034] Working principle: Before operation, connect the high-pressure oil pipe connector 2 to the constant-pressure and high-pressure hydraulic breaker. The constant-pressure high-pressure oil passes through the high-pressure oil pipe connector 2 to the automatic grease applicator, then is throttled by the high-pressure oil pipe connector 2, and then passes through the plug 3, applying high-pressure oil to the piston 5, pushing the piston 5 to the left. The other end of the piston 5, i.e., the right end, is connected to the spring retaining cap 6 by threads. When the piston 5 moves to the left, the piston 5 will drive the spring retaining cap 6 to move to the left as well. At this time, the spring 7 is blocked by the retaining sleeve 8, and the spring retaining cap 6 continues to compress the spring 7 to store energy. When piston 5 moves to the left, one end of piston 5, i.e. the left end, compresses the grease, forcing the grease inside the grease cylinder 10 into the grease flow regulating valve 14. At this time, the ball 9 inside the grease flow regulating valve 14 will be pressured by the grease and move to the right, allowing the grease to enter the grease flow regulating valve 14. Subsequently, the grease will pass through the hole on the side of the grease flow regulating valve 14 and enter the grease outlet pipe joint 16 on the other side. The grease outlet pipe joint 16 on this side is connected to the grease pipe, supplying grease to the hydraulic breaker.

[0035] When the hydraulic breaker stops working, the pressure of the constant high pressure will drop to low pressure. At this time, the pressure stored in the spring 7 will be greater than the hydraulic pressure. The spring 7 will recover and push the spring fixing cap 6 to the right. The spring fixing cap 6 will drive the piston 5 to move to the right. At this time, the grease can 1 will replenish the pressure inside the grease cylinder 10. Since the pressure replenished by the grease is small, the force of the inner spring 11 is greater than the grease pressure. Under the action of the inner spring 11, the ball 9 blocks the inlet of the grease flow regulating valve 14, preventing the grease from flowing back.

[0036] This invention features a plug 3 between the high-pressure oil pipe connector 2 and the piston 5. This design allows the plug 3 to throttle the flow, reducing the flow rate and pressure reaching the piston 5 and protecting other components.

[0037] The grease cylinder 10 of this utility model is fixed to the housing 19 by a pin 15, which facilitates disassembly and installation without changing the structure of the grease cylinder 10. It can be quickly replaced and installed by using a common grease cylinder 10 on the market, thereby greatly improving the application range and convenience of this utility model.

[0038] This utility model also includes a manual grease-applying hole 17, which is inserted into the housing 19 and connected to the grease cylinder 10.

[0039] The design of the manual grease hole 17 expands the scope of this invention, enabling both automatic and manual grease application. This can be selected based on site conditions. When manually greaseing, the high-pressure oil pipe connector 2 does not need to be connected to the constant high pressure of the hydraulic breaker. Simply connect the manual grease hole 17 to the manual grease application equipment and manually inject pressure into the grease cylinder 10, forcing the grease cylinder 10 into the grease flow regulating valve 14. The grease then passes through the grease flow regulating valve 14 and is forced into the grease outlet oil pipe connector 16, supplying grease to the hydraulic breaker.

[0040] This utility model also features a grease filling hole 18; the grease filling hole 18 is inserted into the housing 19 and connected to the grease cylinder 10. This design facilitates the replenishment of grease and can also support grease supply devices other than the grease tank 1. Simply adding grease through the grease filling hole 18 is sufficient to maintain normal operation of the equipment. This can cope with various emergencies on site and greatly improve the application scope of this utility model.

[0041] The present invention also includes a sealing ring directly between the butter container 1 and the shell 19, and a high-pressure oil pipe connector 2 connected to the constant pressure of the hydraulic breaker.

[0042] In the description of this utility model, it should be understood that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this utility model and simplifying the description, and is not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0043] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0044] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An automatic grease gun for a hydraulic breaker, comprising a housing (19), characterized in that, It also includes a butter can (1), a high-pressure oil pipe connector (2), a plug (3), a spring (7), a piston (5), a ball (9), a butter cylinder (10), a butter flow regulating valve (14), and a butter outlet oil pipe connector (16); the butter can (1) is inserted into the housing (19) and connected to the butter cylinder (10) inside the housing (19). One end of the butter cylinder (10) is connected to one end of the piston (5) located inside the housing (19). The other end of the butter cylinder (10) is connected to the butter outlet oil pipe connector (16) through the butter flow regulating valve (14). The other end of the piston (5) is connected to the high-pressure oil pipe connector (2) through the plug (3). A plug (4) is also provided between the other end of the piston (5) and the housing (19). A spring (7) surrounds the outside of the piston (5).

2. The automatic grease device for the hydraulic breaker according to claim 1, characterized in that: A spring fixing cap (6) is provided between the spring (7) and the plug (4). The spring (7) and the spring fixing cap (6) are fixedly connected. The other end of the spring fixing cap (6) is connected to the piston (5) by a thread.

3. The automatic grease device for the hydraulic breaker according to claim 1, characterized in that: A fixed sleeve (8) is provided on the outer side of one end of the piston (5). The fixed sleeve (8) is fixed to the housing (19). The piston (5) slides through the fixed sleeve (8).

4. The automatic grease device for the hydraulic breaker according to claim 1, characterized in that: The butter flow regulating valve (14) is equipped with an internal spring (7).

5. The automatic grease device for the hydraulic breaker according to claim 4, characterized in that: One end of the inner spring (7) is in contact with the ball (9), and the other end of the inner spring (7) is connected to the adjusting screw (13). The adjusting screw (13) is fixed to the housing (19) by the nut (12).

6. The automatic grease device for the hydraulic breaker according to claim 1, characterized in that: The grease cylinder (10) is fixed to the housing (19) by a pin (15).

7. The automatic grease device for the hydraulic breaker according to claim 1, characterized in that: It also includes a manual grease hole (17), which is inserted into the housing (19) and connected to the grease cylinder (10).

8. The automatic grease device for the hydraulic breaker according to claim 1 or 7, characterized in that: It also includes a grease filling hole (18), which is inserted into the housing (19) and connected to the grease cylinder (10).

9. The automatic grease device for the hydraulic breaker according to claim 1, characterized in that: The butter jar (1) is also provided with a sealing ring between it and the shell (19).

10. The automatic grease device for the hydraulic breaker according to claim 1, characterized in that: The high-pressure oil pipe joint (2) is connected to the constant high pressure of the hydraulic breaker.

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