Novel automatic butter device for breaking hammer

Abstract

The utility model discloses a novel automatic butter device for a breaking hammer, which belongs to the technical field of breaking hammers and comprises a shell, a hydraulic oil inlet, a butter cylinder and a butter outlet are fixedly arranged on the shell, the butter cylinder is arranged in the middle of the surface of one side of the shell and extends into the shell, and the butter outlet is communicated with the hydraulic oil inlet. A grease device body is arranged in the shell, and a hydraulic oil cavity, a grease cavity and a buffer cavity are formed in the grease device body; through cooperation of the grease barrel, the first spring, the second spring and the steel ball, it is guaranteed that grease can be continuously and quantitatively injected in the working process, meanwhile, the structure is simple, convenient and practical, the space structure is compact, and the secondary sealing requirement in a limited space can be completely met. Under the condition that the spring force does not need to be too large, shaping of the elastic cushion is fully utilized, and it can be guaranteed that grease does not leak out. According to the structure, on the premise that space is not increased, existing standard parts are utilized, and the sealing requirement is fully met.

Description

Technical Field

[0001] The utility model relates to the technical field of breaker hammers, in particular to a novel automatic grease device for breaker hammers. Background Art

[0002] Hydraulic breaker is a common engineering machine. Its basic principle is to use hydraulic energy to make the piston reciprocate in the cylinder sleeve to repeatedly hammer the drill rod, which performs the crushing function and crushes cement buildings, roads, etc. The working environment of the hydraulic breaker is harsh and the drill rod impacts frequently. Therefore, maintaining automatic and continuous lubrication on the surface of the drill rod is an effective way to increase the service life of the breaker and reduce working noise.

[0003] The automatic grease adding device is a product specially used for lubricating the drill rod of hydraulic breakers. When the drill rod is working, it can force the lubricating grease to enter and pass through the narrow lubrication channel to reach the surface of the drill rod, lubricate the drill rod, improve its wear resistance and increase its service life. There are currently two ways to add grease on the market: manually add grease through the grease inlet end of the breaker hammer; use the vibration of the breaker hammer when working to connect the grease pipe to add grease through the automatic grease adding device.

[0004] However, both of the above two methods of adding butter have hidden dangers: manually adding butter through the grease nipple inlet on the breaker hammer cannot continuously add butter and lubricate, and the breaker hammer needs to be stopped before adding butter, which affects work efficiency and has great safety hazards; using the vibration of the breaker hammer when working, the grease is connected to the grease pipe through the automatic grease adding device. As long as the breaker hammer is working, the grease machine will continuously add butter, which is seriously wasteful and the butter will seep out from the drill rod, affecting the work. In order to be able to reuse, the device also has a grease nipple inlet at the interface as a lubricating grease filling port, which can be replenished when the lubricating grease is exhausted. At the same time, the one-way valve function of the grease nipple inlet itself is used to prevent the lubricating grease from seeping out in the opposite direction. However, this reusable lubricating grease filling device has grease leakage during use. The reason is that the pressure of the lubricating grease chamber is high. When working at high-frequency vibration, the one-way valve performance of the grease nipple inlet alone cannot achieve complete sealing, so grease leakage often occurs, and then there are serious quality risks, which hinders the sales of the whole machine.

[0005] For this reason, we propose a new type of automatic grease device for breaker hammer. Utility Model Content

[0006] In view of the deficiencies in the prior art, the utility model provides a novel automatic grease device for a breaker hammer, which overcomes the deficiencies in the prior art and aims to solve the problems in the background technology.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a new type of automatic grease device for a breaker hammer, comprising a shell, on which a hydraulic oil inlet, a grease cylinder and a grease outlet are fixedly arranged, the grease cylinder is arranged in the middle of one side surface of the shell, and the grease cylinder extends to the interior of the shell, a grease device body is arranged inside the shell, a hydraulic oil chamber, a grease chamber and a buffer chamber are arranged in the grease device body, the grease device body extends to the outside of the shell and a breaker hammer is installed, a core shaft is arranged between the buffer chamber and the grease chamber, and a grease nipple inlet is opened between the end of the core shaft and the grease chamber.

[0008] In a preferred example, the utility model can be further configured as follows: a hydraulic cylinder is provided at the end of the hydraulic oil chamber, a piston rod is fixedly provided on the hydraulic cylinder, the piston rod is arranged to abut against the inner wall of the grease device body, and the piston rod extends to the interior of the grease chamber.

[0009] In a preferred example, the utility model can be further configured as follows: a first spring is provided at the end of the hydraulic cylinder, the other end of the first spring is fixedly connected to the grease device body, and the first spring is provided around the piston rod.

[0010] In a preferred example, the utility model can be further configured as follows: a hydraulic oil pipe is provided between the hydraulic oil chamber and the hydraulic oil inlet, a grease pipe is provided between the grease cylinder and the grease chamber, and an oil outlet pipe is provided between the buffer chamber and the grease outlet.

[0011] In a preferred example, the utility model can be further configured as follows: the interior of the core shaft is hollow, and a steel ball is arranged in abutment with one end of the core shaft near the grease nipple inlet end, a second spring is arranged inside the core shaft, the second spring is fixedly connected to the steel ball, and an orifice is opened at one end of the core shaft away from the grease nipple inlet end, and the orifice is connected to the buffer chamber.

[0012] In a preferred example, the utility model can be further configured as follows: a control button is provided on the outside of the housing, and the control button is electrically connected to the hydraulic cylinder via a PLC programming model S4-400.

[0013] Beneficial effects of the utility model:

[0014] The utility model ensures continuous and quantitative butter filling during operation through the cooperation of the butter cylinder, the first spring, the second spring and the steel ball. At the same time, the structure is simple and practical, the space structure is compact, and the secondary sealing requirements in a limited space can be fully met. In the case that the spring force does not need to be too large, the shaping of the elastic pad is fully utilized to ensure that the butter does not leak. The structure fully meets the sealing requirements by using existing standard parts without increasing the space. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the internal structure of the utility model;

[0017] Figure 3 It is a schematic diagram of the core shaft structure of the utility model.

[0018] In the figure: 1. housing; 2. hydraulic oil inlet; 3. grease cylinder; 4. grease outlet; 5. hydraulic oil chamber; 6. first spring; 7. piston rod; 8. grease chamber; 9. buffer chamber; 10. spindle; 11. breaker; 12. hydraulic cylinder; 14. steel ball; 15. second spring; 16. grease nipple inlet; 17. grease device body. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] Embodiment 1

[0021] See also Figure 1-Figure 3 A novel automatic grease device for a breaker hammer comprises a shell 1, on which a hydraulic oil inlet 2, a grease cylinder 3 and a grease outlet 4 are fixedly arranged. The grease cylinder 3 is arranged in the middle of one side surface of the shell 1, and the grease cylinder 3 extends to the interior of the shell 1. A grease device body 17 is arranged inside the shell 1, and a hydraulic oil chamber 5, a grease chamber 8 and a buffer chamber 9 are arranged in the grease device body 17. The grease device body 17 extends to the outside of the shell 1 and is installed with a breaker hammer 11. A core shaft 10 is arranged between the buffer chamber 9 and the grease chamber 8, and a grease nipple inlet end 16 is opened between the end of the core shaft 10 and the grease chamber 8. The interior of the core shaft 10 is hollow, and a steel ball 14 is arranged in abutment with one end of the core shaft 10 near the grease nipple inlet end 16. A second spring 15 is arranged inside the core shaft 10, and the second spring 15 is fixedly connected to the steel ball 14. An orifice is opened at one end of the core shaft 10 away from the grease nipple inlet end 16, and the orifice is communicated with the buffer chamber 9.

[0022] A hydraulic cylinder 12 is provided at the end of the hydraulic oil chamber 5, and a piston rod 7 is fixedly provided on the hydraulic cylinder 12. The piston rod 7 is arranged to abut against the inner wall of the grease device body 17, and the piston rod 7 extends to the inside of the grease chamber 8. A first spring 6 is provided at the end of the hydraulic cylinder 12, and the other end of the first spring 6 is fixedly connected to the grease device body 17. The first spring 6 is arranged around the piston rod 7.

[0023] In particular, a hydraulic oil pipe is provided between the hydraulic oil chamber 5 and the hydraulic oil inlet 2, a butter pipe is provided between the butter cylinder 3 and the butter chamber 8, and an oil outlet pipe is provided between the buffer chamber 9 and the butter outlet 4. A control button is provided outside the housing 1, and the control button is electrically connected to the hydraulic cylinder 12 through a PLC programming of model S4-400. At the same time, the size of the first spring 6 is larger than that of the second spring 15.

[0024] Working principle: When the device is in use, when the breaker 11 works at a high frequency, the driver operates the button to allow the hydraulic oil to enter the hydraulic oil chamber 5 through the hydraulic oil pipe, pushing the piston rod 7 to slide toward the grease chamber 8, and under the elastic force of the second spring 15, the grease slowly enters the core shaft 10 through the grease nipple inlet end 16, enters the buffer chamber 9 through the hole in the core shaft 10, and then enters the grease nipple outlet end, the grease nipple outlet end is connected to the grease outlet 4 pipeline, and reaches the interior of the breaker 11 through the grease pipe; when the breaker 11 is not working, the hydraulic oil cannot enter the hydraulic oil chamber 5, and under the elastic force of the first spring 6, the piston rod 7 does not slide, and cannot squeeze the grease in the grease chamber 8 into the core shaft 10, and at the same time, the steel ball 14 in the core shaft 10 is pressed tightly against the grease nipple inlet end 16, completely covering the grease nipple inlet end 16 to prevent the high-pressure grease from leaking.

[0025] Finally, it should be noted that in the description of the present invention, it should be noted that the terms "vertical", "up", "down", "horizontal", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0026] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] The above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A new type of automatic grease device for a breaker hammer, characterized in that: The invention comprises a housing (1), wherein a hydraulic oil inlet (2), a grease cylinder (3) and a grease outlet (4) are fixedly arranged on the housing (1), wherein the grease cylinder (3) is arranged in the middle of a surface of one side of the housing (1), and the grease cylinder (3) extends to the interior of the housing (1), wherein a grease device body (17) is arranged inside the housing (1), wherein a hydraulic oil chamber (5), a grease chamber (8) and a buffer chamber (9) are arranged inside the grease device body (17), wherein a breaker hammer (11) is installed on the grease device body (17) extending to the exterior of the housing (1), wherein a core shaft (10) is arranged between the buffer chamber (9) and the grease chamber (8), wherein a grease nipple inlet (16) is provided between the end of the core shaft (10) and the grease chamber (8), wherein a hydraulic cylinder (12) is arranged at the end of the hydraulic oil chamber (5), wherein a piston rod (7) is fixedly arranged on the hydraulic cylinder (12), wherein the piston rod (7) and the inner wall of the grease device body (17) are connected. The piston rod (7) is arranged to abut against the grease chamber (8), and the piston rod (7) extends into the interior of the grease chamber (8). A first spring (6) is arranged at the end of the hydraulic cylinder (12), and the other end of the first spring (6) is fixedly connected to the grease device body (17). The first spring (6) is arranged around the piston rod (7). A hydraulic oil pipe is arranged between the hydraulic oil chamber (5) and the hydraulic oil inlet (2), a grease pipe is arranged between the grease cylinder (3) and the grease chamber (8), and an oil outlet pipe is arranged between the buffer chamber (9) and the grease outlet (4). The interior of the core shaft (10) is arranged hollow, and a steel ball (14) is arranged to abut against the end of the core shaft (10) near the grease nozzle inlet end (16). A second spring (15) is arranged inside the core shaft (10), and the second spring (15) is fixedly connected to the steel ball (14). An orifice is opened at one end of the core shaft (10) away from the grease nozzle inlet end (16), and the orifice is communicated with the buffer chamber (9).

2. A new type of automatic grease device for a breaker hammer according to claim 1, characterized in that: A control button is arranged outside the housing (1), and the control button is electrically connected to the hydraulic cylinder (12) via a PLC programming of model S4-400.

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