Grease pipeline structure of hydraulic breaking hammer

Abstract

The utility model discloses a butter pipeline structure of a hydraulic breaking hammer, which comprises a high-pressure connector, a valve connector, a butter connector, a butter input pipeline, a rear cylinder butter pipeline, a middle cylinder butter pipeline and a front cylinder butter pipeline. The grease input pipeline is communicated with one end of a rear cylinder body grease pipeline arranged on the lower portion of the rear cylinder body, the other end of the rear cylinder body grease pipeline is communicated with one end of a middle cylinder body grease pipeline arranged on the lower portion of the middle cylinder body, and the other end of the middle cylinder body grease pipeline is communicated with one end of a front cylinder body grease pipeline arranged on the lower portion of the front cylinder body. And the other end of the front cylinder body grease pipeline is communicated with the inner sleeve pipeline. The reversing valve is simple in structure, low in cost, convenient to maintain, attractive and safe, high-pressure gas generated by working of the reversing valve is output to the automatic butter beating machine, the structure is greatly simplified, a normal-high-pressure driving device can be prevented from being additionally arranged, cost is reduced, the structure is more reasonable, and functions are utilized to the maximum extent.

Description

Technical Field

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

[0002] The existing grease piping structure of a hydraulic breaker consists of one grease hole on the middle cylinder, two grease holes on the front cylinder, and related connecting pipes. The two grease holes on the front cylinder are plugged with grease fittings. The grease system for hydraulic breakers has both automatic and manual operation methods. Manual grease application involves manually injecting grease through the grease fittings on the front cylinder by holding the grease can and inserting it manually. Manual grease application requires the excavator operator to stop the excavator periodically to ensure lubrication efficiency, and in practice, operators often forget to manually inject grease. Automatic grease application, on the other hand, uses a grease fitting device connected to the grease hole on the middle cylinder. Grease is injected through the grease hole, and the grease flows through pipes to the inner and outer sleeves of the front cylinder, providing lubrication. Automatic grease application is simpler to operate and provides better lubrication than manual grease application, which helps increase the service life of the hydraulic breaker and reduce the failure rate of related equipment. Currently, a hydraulically driven automatic grease application requires a high-pressure oil input to achieve the automatic grease application effect, and the above-mentioned grease piping cannot provide such driving oil pressure.

[0003] However, in practice, it has been found that if the automatic grease dispenser is located in the middle cylinder, the grease pipes of the automatic grease dispenser need to be connected to the middle cylinder, and the pipes are exposed. This is not aesthetically pleasing, and the hydraulic breaker may hit the grease pipes when working, causing damage to the grease pipes or even the automatic grease dispenser. In addition, an external constant high pressure drive device is required, which is complex in structure, costly, and inconvenient to maintain. Utility Model Content

[0004] The purpose of this invention is to provide a grease piping structure for a hydraulic breaker. The grease piping on the front, middle, and rear cylinders has been redesigned, simplifying the complex front cylinder piping into a single front cylinder grease piping and a process hole. A through-type middle cylinder grease piping has been added to the middle cylinder, directly connecting to the rear cylinder grease piping. This design is simple, low-cost, and easy to maintain. Furthermore, the piping is not exposed, making it both aesthetically pleasing and safe. The hydraulic breaker will not come into contact with or damage the grease piping during operation, nor will it harm the automatic grease applicator. A high-pressure connection port and a valve connection port are provided to output the high-pressure gas generated by the reversing valve to the automatic grease applicator, serving as its constant-pressure drive device. This ingenious design not only greatly simplifies the structure but also avoids the need for a separate constant-pressure drive device, reducing costs and making the structure more rational and maximizing functionality.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a grease piping structure for a hydraulic breaker, comprising a front cylinder, a middle cylinder, a rear cylinder, and a grease piping structure. The grease piping structure includes a high-pressure connection port, a valve connection port, a grease connection port, a grease input pipe, a grease piping system for the rear cylinder, a grease piping system for the middle cylinder, and a grease piping system for the front cylinder. The input end of the high-pressure connection port is connected to the valve connection port, and the output end of the high-pressure connection port is connected to the high-pressure chamber of an external automatic grease dispenser. The input end of the grease connection port is connected to the external automatic grease dispenser... The grease fitting is connected to the grease inlet. The output end of the grease fitting is connected to the grease inlet pipe. The grease inlet pipe is connected to one end of the rear cylinder grease pipe located at the bottom of the rear cylinder block. The other end of the rear cylinder grease pipe is connected to one end of the middle cylinder grease pipe located at the bottom of the middle cylinder block. The other end of the middle cylinder grease pipe is connected to one end of the front cylinder grease pipe located at the bottom of the front cylinder block. The other end of the front cylinder grease pipe is connected to the inner sleeve pipe. A process hole is provided at the connection between the front cylinder grease pipe and the inner sleeve pipe, and a plug is provided in the process hole.

[0006] In a further preferred embodiment, the high-pressure connection port, valve connection port, grease connection port, grease input pipeline, and rear cylinder block grease pipeline are located on the rear cylinder block.

[0007] Preferably, the grease inlet line is located behind the nitrogen chamber in the rear cylinder block.

[0008] In a further preferred embodiment, the valve connection port is connected to the reversing valve chamber located in the middle cylinder body, and the reversing valve chamber is provided with a reversing valve assembly.

[0009] In a further preferred embodiment, the directional valve assembly includes a valve sleeve, a directional valve, and a valve cover, with the valve cover disposed between the valve connection port and the valve sleeve, and the directional valve disposed inside the valve sleeve and valve cover assembly.

[0010] A further preferred embodiment includes a sealing ring between the grease lines of the rear cylinder block and the grease lines of the middle cylinder block.

[0011] A further preferred embodiment includes a sealing ring between the grease lines of the middle cylinder block and the grease lines of the front cylinder block.

[0012] In a further preferred embodiment, the inner sleeve pipe is connected to the inner sleeve cavity located in the front cylinder body.

[0013] A further preferred embodiment has an inner sleeve disposed within the inner sleeve cavity.

[0014] A further preferred design features an outer cover next to the inner cover.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. This utility model redesigns the grease lines on the front cylinder, middle cylinder, and rear cylinder, simplifying the complex grease lines on the front cylinder into a single front cylinder grease line and a process hole. A through-type grease line is added to the middle cylinder, directly connecting to the grease line on the rear cylinder. This design is simple, low-cost, and easy to maintain. Furthermore, the lines are not exposed, making it both aesthetically pleasing and safe. The hydraulic breaker will not come into contact with or damage the grease lines during operation, nor will it harm the automatic grease applicator.

[0017] 2. This utility model is equipped with a high-pressure connection port and a valve connection port, which outputs the high-pressure gas generated by the operation of the reversing valve to the automatic grease machine as a constant high-pressure drive device for the automatic grease machine. This ingenious design not only greatly simplifies the structure, but also avoids the need to configure a separate constant high-pressure drive device, reducing costs and making the structure more reasonable and maximizing the utilization of functions.

[0018] 3. This utility model adopts a rear-mounted automatic grease applicator, which makes the maintenance of hydraulic breakers more convenient.

[0019] 4. This utility model has a process hole for installing a plug at the connection between the grease pipe and the inner sleeve pipe in the front cylinder block. This design not only achieves sealing, but also facilitates the installation and cleaning of the grease pipe.

[0020] 5. For ease of connection and maintenance, the high-pressure connection port, valve connection port, grease connection port, grease input line, and rear cylinder grease line are located on the rear cylinder block.

[0021] 6. For ease of maintenance, the grease inlet line is located behind the nitrogen chamber in the rear cylinder block.

[0022] 7. For sealing purposes, sealing rings are provided between the grease lines of the rear cylinder block and the grease lines of the middle cylinder block, and between the grease lines of the middle cylinder block and the grease lines of the front cylinder block.

[0023] 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

[0024] Figure 1 This is an exploded schematic diagram of the grease piping structure of the hydraulic breaker of this utility model.

[0025] Figure 2 This is a three-dimensional cross-sectional view of the internal structure of the grease pipe of the hydraulic breaker of this utility model.

[0026] Figure 3 for Figure 2 Frontal 3D illustration;

[0027] Figure 4 This is a three-dimensional structural diagram of the rear cylinder block of this utility model;

[0028] Figure 5 for Figure 4 Front structural diagram;

[0029] Figure 6 for Figure 5 Sectional view of section AA;

[0030] Figure 7 for Figure 6 A schematic diagram of the three-dimensional structure;

[0031] Figure 8 for Figure 5 BB and Figure 6 Schematic diagram of the common cross section of the C-CC;

[0032] Figure 9 for Figure 8 A three-dimensional schematic diagram;

[0033] Figure 10 This is a three-dimensional structural diagram of the rear cylinder block of this utility model;

[0034] Figure 11 This is a three-dimensional structural diagram of the middle cylinder of this utility model;

[0035] Figure 12 for Figure 11 Front view;

[0036] Figure 13 for Figure 11 The diagram behind;

[0037] Figure 14 for Figure 13 Schematic diagram after the DD section;

[0038] Figure 15 for Figure 14 A schematic diagram of the three-dimensional structure;

[0039] Figure 16 This is a three-dimensional schematic diagram of the front cylinder block structure of this utility model;

[0040] Figure 17 for Figure 16 The diagram behind;

[0041] Figure 18 for Figure 17 Schematic diagram of the EE section;

[0042] Figure 19 for Figure 18 A schematic diagram of the three-dimensional structure;

[0043] The components are as follows: 1. Front cylinder block; 2. Middle cylinder block; 3. Rear cylinder block; 4. Outer sleeve; 5. Inner sleeve; 6. Valve sleeve; 7. Valve cover; 801. High-pressure connection port; 802. Grease connection port; 803. Grease inlet pipe; 804. Rear cylinder block grease pipe; 805. Middle cylinder block grease pipe; 806. Front cylinder block grease pipe; 807. Valve connection port; 808. Process hole; 809. Sealing ring; 810. Inner sleeve pipe; 9. Reversing valve; Detailed Implementation

[0044] 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.

[0045] 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.

[0046] Example

[0047] To address the aforementioned problems, this utility model provides a technical solution: a grease piping structure for a hydraulic breaker, such as... Figure 1-19 As shown, the structure includes a front cylinder block 1, a middle cylinder block 2, a rear cylinder block 3, and a grease piping system. The front cylinder block 1 is connected to the middle cylinder block 2, and the middle cylinder block 2 is connected to the rear cylinder block 3. A reversing valve assembly is provided in the reversing valve chamber of the middle cylinder block 2. The reversing valve assembly includes a valve sleeve 6, a reversing valve 9, and a valve cover 7. The valve cover 7 is located between the valve connection port 807 and the valve sleeve 6, and the reversing valve 9 is located inside the assembly of the valve sleeve 6 and the valve cover 7. An inner sleeve 5 is provided in the inner sleeve cavity of the front cylinder block 1, and an outer sleeve 4 is provided next to the inner sleeve 5.

[0048] The grease piping structure includes a high-pressure connection port 801, a valve connection port 807, a grease connection port 802, a grease input pipe 803, a rear cylinder block grease pipe 804, a middle cylinder block grease pipe 805, and a front cylinder block grease pipe 806. The input end of the high-pressure connection port 801 is connected to the valve connection port 807, which is connected to the reversing valve chamber located in the middle cylinder block 2. The output end of the high-pressure connection port 801 is connected to the high-pressure chamber of an external automatic greaseer. The input end of the grease connection port 802 is connected to the grease interface of an external automatic greaseer, and the output end of the grease connection port 802 is connected to the grease input... The grease inlet pipe 803 is connected to one end of the rear cylinder grease pipe 804 located at the lower part of the rear cylinder block 3. The other end of the rear cylinder grease pipe 804 is connected to one end of the middle cylinder grease pipe 805 located at the lower part of the middle cylinder block 2. The other end of the middle cylinder grease pipe 805 is connected to one end of the front cylinder grease pipe 806 located at the lower part of the front cylinder block 1. The other end of the front cylinder grease pipe 806 is connected to the inner sleeve 5 pipe. The inner sleeve 5 pipe is connected to the inner sleeve cavity. A process hole 808 is provided at the connection between the front cylinder grease pipe 806 and the inner sleeve 5 pipe. A plug is provided in the process hole 808.

[0049] Working principle: When automatic grease application is required, connect the high-pressure connection port 801 to the high-pressure chamber of the external automatic greaseer, and connect the grease connection port 802 to the grease interface of the external automatic greaseer. During operation, the reversing valve 9 will pressurize the high-pressure gas from the valve connection port 807, and then input high pressure to the high-pressure chamber of the external automatic greaseer through the high-pressure connection port 801 to compensate for the need for constant high pressure to drive the automatic greaseer. After driving, the automatic greaseer will deliver grease from the grease connection port 802 to the grease input pipeline 803, and then output it sequentially from the grease input pipeline 803 to the rear cylinder grease pipeline 804, the middle cylinder grease pipeline 805, and the front cylinder grease pipeline 806. Finally, it flows into the inner sleeve cavity through the process hole 808 and the inner sleeve 5 pipeline, allowing the inner sleeve 5 and the outer sleeve 4 to be automatically lubricated when the hydraulic breaker is running. This reduces the friction between the chisel and the inner sleeve 5 and the outer sleeve 4, and also increases the service life of the chisel, the inner sleeve 5, the outer sleeve 4, and the automatic greaseer. The use of a rear-mounted automatic grease dispenser makes the maintenance of hydraulic breakers more convenient.

[0050] This utility model redesigns the grease lines on the front cylinder block 1, the middle cylinder block 2, and the rear cylinder block 3. The complex grease lines on the front cylinder block 1 are simplified into a front cylinder block grease line 806 and a process hole 808. A through-type middle cylinder block grease line 805 is added to the middle cylinder block 2, which is directly connected to the rear cylinder block grease line 804 of the rear cylinder block 3. The structure is simple, the cost is low, and it is easy to maintain.

[0051] This utility model is equipped with a high-pressure connection port 801 and a valve connection port 807, which outputs the high-pressure gas generated by the operation of the reversing valve 9 to the automatic grease machine as a constant high-pressure drive device for the automatic grease machine. This ingenious design not only greatly simplifies the structure, but also avoids the need for a separate constant high-pressure drive device, reducing costs and making the structure more reasonable and maximizing the utilization of functions.

[0052] For ease of connection and maintenance, the high-pressure connection port 801, valve connection port 807, grease connection port 802, grease inlet pipe 803, and rear cylinder grease pipe 804 are located on the rear cylinder 3.

[0053] For ease of maintenance, the grease inlet line 803 is located behind the nitrogen chamber of the rear cylinder block 3.

[0054] For sealing purposes, a sealing ring 809 is provided between the rear cylinder block grease line 804 and the middle cylinder block grease line 805.

[0055] For sealing purposes, a sealing ring 809 is provided between the grease line 805 in the middle cylinder block and the grease line 806 in the front cylinder block.

[0056] 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.

[0057] 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.

[0058] 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. A grease piping structure for a hydraulic breaker, comprising a front cylinder (1), a middle cylinder (2), and a rear cylinder (3); characterized in that, It also includes a grease piping structure, which includes a high-pressure connection port (801), a valve connection port (807), a grease connection port (802), a grease input pipe (803), a rear cylinder block grease pipe (804), a middle cylinder block grease pipe (805), and a front cylinder block grease pipe (806). The input end of the high-pressure connection port (801) is connected to the valve connection port (807), and the output end of the high-pressure connection port (801) is connected to the high-pressure chamber of an external automatic greaseer. The input end of the grease connection port (802) is connected to the grease interface of an external automatic greaseer, and the output end of the grease connection port (802) is connected to the grease input pipe (803). The oil input line (803) is connected to one end of the rear cylinder grease line (804) located at the lower part of the rear cylinder block (3), and the other end of the rear cylinder grease line (804) is connected to one end of the middle cylinder grease line (805) located at the lower part of the middle cylinder block (2). The other end of the middle cylinder grease line (805) is connected to one end of the front cylinder grease line (806) located at the lower part of the front cylinder block (1). The other end of the front cylinder grease line (806) is connected to the inner sleeve line (810). A process hole (808) is provided at the connection between the front cylinder grease line (806) and the inner sleeve line (810). A plug is provided in the process hole (808).

2. The grease piping structure of the hydraulic breaker according to claim 1, characterized in that: The high-pressure connection port (801), valve connection port (807), grease connection port (802), grease input pipeline (803), and rear cylinder grease pipeline (804) are installed on the rear cylinder (3).

3. The grease piping structure of the hydraulic breaker according to claim 1, characterized in that: The grease inlet pipe (803) is located behind the nitrogen chamber of the rear cylinder block (3).

4. The grease piping structure of the hydraulic breaker according to claim 1, characterized in that: The valve connection port (807) is connected to the reversing valve chamber located in the middle cylinder (2), and the reversing valve chamber is provided with a reversing valve assembly.

5. The grease piping structure of the hydraulic breaker according to claim 4, characterized in that: The reversing valve assembly includes a valve sleeve (6), a reversing valve (9), and a valve cover (7). The valve cover (7) is disposed between the valve connection port (807) and the valve sleeve (6), and the reversing valve (9) is disposed inside the valve sleeve (6) and valve cover (7) assembly.

6. The grease piping structure of the hydraulic breaker according to claim 1, characterized in that: A sealing ring is provided between the rear cylinder grease pipe (804) and the middle cylinder grease pipe (805).

7. The grease piping structure of the hydraulic breaker according to claim 1, characterized in that: A sealing ring (809) is provided between the grease pipe (805) of the middle cylinder block and the grease pipe (806) of the front cylinder block.

8. The grease piping structure of the hydraulic breaker according to claim 1, characterized in that: The inner sleeve pipe (810) is connected to the inner sleeve cavity located in the front cylinder (1).

9. The grease piping structure of the hydraulic breaker according to claim 8, characterized in that: An inner sleeve (5) is provided inside the inner sleeve cavity.

10. The grease piping structure of the hydraulic breaker according to claim 9, characterized in that: The inner sleeve (5) is provided with an outer sleeve (4) next to it.

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