CN105003812B - A kind of oil piping system of circulating filtration and a kind of fullering tool - Google Patents

Abstract

The invention relates to a circulation filtering oil circuit system and a hammering tool, which are used to circulate and filter the grease at the grease deposit in the hammering tool, including a cavity, a front oil pipe, a cylinder body, a magnetic cover, a rear oil pipe, and the cylinder body It includes a first body and a second body. Both sides of the first body are respectively connected to the front oil pipe and the rear oil pipe. The second body is vertically installed on the first body; the magnetic cover is sleeved on the second body, so that the inside of the second body Form an accommodating space, the accommodating space is connected with the space in the first body, a magnet is embedded in the magnetic cover, the magnet is used to absorb the iron filings mixed in the grease in the oil circuit, and absorb the iron filings in the accommodating space Inside; the cavity is located inside the hammer tool body; one end of the front oil pipe is connected to the downstream of the cavity, and the other end is sleeved on one side of the first body of the cylinder block; one end of the rear oil pipe is connected to the upstream of the cavity, and the other end is sleeved Connected to the other side of the first body of the cylinder block. The invention has good lubricating effect and can effectively avoid grease leakage.

Description

A circulation filtering oil circuit system and a hammering tool

technical field

The invention relates to the technical field of hammering tool accessories, in particular to a circulating filtering oil circuit system and a hammering tool.

Background technique

All current hammering tools, whether pneumatic or electric, do not have a circulating oil circuit device (as shown in Figure 1). However, large-scale hammering tools usually work vertically downwards, so that when the user uses the hammering tool, the lubricating oil in the hammering tool is easy to deposit in a certain place due to gravity (as circled in Figure 2) As shown in the section), that is, it is easy to affect the lubrication effect, and may cause more grease leakage. At the same time, due to the wear and tear of the internal machinery and gear parts of the hammering tool, iron filings are generated. During repeated use, the hammering tool will be worn to a certain extent, and serious parts will be scrapped, which will increase the cost of use and shorten the life of the tool. service life.

Contents of the invention

In order to overcome the above technical problems, the present invention aims to provide a circulating filtering oil circuit system, thereby improving the lubrication effect of the hammering tool and avoiding grease leakage.

In order to achieve the above-mentioned purpose of the invention, the technical solution adopted to solve the technical problems is as follows:

A circulation filtering oil circuit system, which is used to circulate and filter the grease at the grease deposit in the hammering tool, including the front oil pipe, the cylinder body, the magnetic cover and the rear oil pipe, wherein,

The cylinder block includes a first body and a second body, both sides of the first body are respectively connected to the front oil pipe and the rear oil pipe, and the second body is vertically arranged on the first body;

The magnetic cover is sleeved on the second body, thereby forming an accommodating space inside the second body, the accommodating space is connected through the space in the first body, and the magnetic cover A magnet is embedded on the top, and the magnet is used to absorb iron filings mixed in the grease in the oil circuit, and adsorb the iron filings in the accommodating space;

The cavity is located inside the hammer tool body;

One end of the front oil pipe is connected to the downstream of the cavity, and the other end is sleeved on one side of the first body of the cylinder block;

One end of the rear oil pipe is connected to the upstream of the cavity, and the other end is sleeved on the other side of the first body of the cylinder;

The cavity, the front oil pipe, the cylinder block, the magnetic cap and the rear oil pipe are connected in sequence to form a circulating and filtered oil circuit system.

Preferably, it includes a hollow vibration block and two balance springs arranged in the first body, and the two balance springs are a first balance spring and a second balance spring, wherein,

One end of the first balance spring abuts against one end of the first cylinder body, and the other end of the first balance spring is sleeved on one end of the vibrating block;

One end of the second balance spring abuts against the other end of the first cylinder body, and the other end of the second balance spring is sleeved on the other end of the vibration block.

Further, a first one-way valve is arranged in the middle of the vibrating block, which is used for one-way communication with the oil circuit system.

Further, the first one-way valve includes a steel ball, a spring, an elastic cylindrical pin, a first through hole and a second through hole, wherein,

One end of the first through hole is connected to the side of the vibrating block close to the second balance spring, and the other end is connected to the second through hole;

One end of the second through hole is connected to the first through hole, and the other end is through connected to the side of the vibrating block close to the first balance spring;

The steel ball, the spring, and the elastic cylindrical pin are sequentially connected, and the steel ball abuts against a side of the first through hole away from the second balance spring;

The diameter of the steel ball is larger than the diameter of the first through hole and smaller than the diameter of the second through hole.

Further, the connection between the first through hole and the second through hole is a conical surface or a right-angled surface.

Preferably, a second one-way valve is included, the inlet end of the second one-way valve is connected to the hammer tool body, and the outlet end of the second one-way valve is connected to the front oil pipe.

Preferably, the outer side of the second body is provided with external threads, the inner side of the magnetic cover is provided with internal threads, and the two are connected by threads.

Preferably, a pipe joint is also included, and the other end of the rear oil pipe is connected to the hammer tool body through the pipe joint.

The present invention additionally discloses a hammering tool, which includes any one of the above-mentioned circulation filtering oil circuit systems.

Compared with the prior art, the present invention has the following beneficial effects:

1. In the present invention, a vibrating block is set on the premise of no additional power drive, and a balance spring is respectively set on both sides of the vibrating block. Relying on the vibration of the machine itself and the effect of the balancing spring, the vibrating block will vibrate back and forth, thereby forming a piston effect , to drive the grease to produce a circulation effect;

2. The vibrating block in the present invention is hollow so that grease can flow from the middle, and steel balls, balance springs and elastic cylindrical pins are arranged in the middle of the vibrating block to form a one-way valve effect, thereby driving the grease to flow in one direction;

3. In the present invention, a one-way valve needs to be set at the starting point of the oil circuit circulation, and a first one-way valve is arranged in the middle of the hollow oil circuit of the vibrating block, so as to form a driving effect. Make the grease flow from A (the part where the grease is easy to deposit) to B (the part that needs to be lubricated) shown in Figure 3 to form a circulating oil circuit, thereby improving better lubrication effect and avoiding grease leakage;

4. The present invention arranges a magnetic force cover on the cylinder body. The magnetic force cover has a magnet on it. During the flow of grease, it will absorb the mixed iron filings in the grease (the wear of the internal machinery and gear parts will produce iron filings), thereby Play the role of filtering grease, further improving the overall life of the machine;

5. The present invention has simple manufacturing process, reliable structure and low cost.

Description of drawings

Accompanying drawing 1 is the overall structure schematic diagram of the electric pick product in the hammering tool that does not install circulating filtering oil circuit system in the prior art;

Accompanying drawing 2 is the schematic diagram of the place where the grease deposits when the electric pick product in the hammering tool that is not installed with the circulation filter oil circuit system works downwards in the prior art;

Accompanying drawing 3 is the whole structure schematic diagram of the oil circuit system of a kind of circulating filtration of the present invention;

Accompanying drawing 4 is an exploded view of the overall structure of a circulation filtering oil circuit system of the present invention.

【Description of main symbols】

1-magnetic cover; 2-first sealing rubber ring; 3-cylinder body; 4-first balance spring; 5-second sealing rubber ring; 6-vibration block; 7-steel ball; 8-spring; 9-elasticity Straight pin; 10-the third sealing rubber ring; 11-cylinder head; 12-front oil pipe; 13-rear oil pipe; 14-pipe joint; 15-second one-way valve; 16-hammer tool; 17-second balance 18-Accommodating space; 19-Magnet; 20-First through hole; 21-Second through hole; 22-Cavity; 31-First body; 32-Second body.

detailed description

The technical solutions in the embodiments of the present invention will be clearly and completely described and discussed below in conjunction with the accompanying drawings of the present invention. Obviously, what is described here is only a part of the examples of the present invention, not all examples. Based on the present invention All other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

Accompanying drawing 1 is a schematic diagram of the overall structure of an electric pick product in a hammer tool without a circulating filter oil circuit system in the prior art, and Figure 2 is a schematic diagram of the hammer tool in the prior art without a circulating filter oil circuit system The schematic diagram of the grease deposits when the electric pick product is working downward. It can be seen from the figure that there is no circulating and filtering oil circuit device in the prior art, and large hammering tools usually work vertically downward, so that users In the process of using the hammering tool, the lubricating oil in the hammering tool is easy to deposit in the circled part as shown in Figure 2 due to gravity, which easily affects the lubrication effect and may cause more grease leakage.

Aiming at the above defects in the prior art, the present invention proposes an oil circuit system for circulating filtration, and the specific structural diagrams are shown in Figures 3 and 4 .

Specifically, a circulation filtering oil circuit system is used to circulate and filter the grease at the grease deposit in the hammering tool, including the cavity 22, the front oil pipe 12, the cylinder body 3, the magnetic cover 1 and the rear oil pipe 13, wherein,

The cylinder body 3 includes a first body 31 and a second body 32, the two sides of the first body 31 are respectively connected to the front oil pipe 12 and the rear oil pipe 13, and the second body 32 is vertically arranged on the first body 31, the present invention does not specifically limit the position of the second body 32, the second body 32 can be vertically installed on the end of the first body 31 close to the front oil pipe 12, or can be vertically installed on the end of the first body 31. The first body 31 is located at one end close to the rear oil pipe 13 .

The magnetic cover 1 is sleeved on the second body 32 , thereby forming an accommodating space 18 inside the second body 32 , and the accommodating space 18 communicates with the space in the first body 31 connection; the upper part of the magnetic cover 1 is embedded with a magnet 19, the magnet 19 is used to absorb the iron filings mixed in the grease in the oil circuit, and adsorb the iron filings in the accommodating space 18; preferably , the outer side of the second body 32 is provided with external threads, and the inner side of the magnetic cover 1 is provided with internal threads, and the two are connected by threads, which is convenient for regularly unscrewing the magnetic cover 1 and cleaning iron filings. Preferably, a first sealing rubber ring 2 is placed on the top of the second body 32, so that the magnetic cover 1 and the second body 32 are tightened in a tighter process, and the sealing effect is better. The overflow of grease in the accommodating space 18 is prevented. During the flow of grease in the oil circuit, iron filings are mixed in the grease, and the iron filings are produced by the wear of the internal machinery and gear parts of the hammering tool 16. Since the magnet 19 is embedded in the upper part of the magnetic cover 1, the magnet 19 A certain amount of iron filings can be adsorbed, and the iron filings are adsorbed in the accommodating space 18, that is, at position C in FIG. 3 , to play a certain filtering role. During the repeated circulation process, the iron filings in the grease are continuously filtered, thereby improving the overall service life of the hammering tool 16 .

The cavity 22 is located inside the body of the hammering tool 16, one end of the front oil pipe 12 is connected to the downstream of the cavity 22, and the other end is sleeved on one side of the first body 31 of the cylinder block 3; One end of the oil pipe 13 is connected upstream of the cavity 22 , and the other end is sleeved on the other side of the first body 31 of the cylinder 3 . The cavity 22, the front oil pipe 12, the cylinder body 3, the magnetic cover 1 and the rear oil pipe 13 are connected in sequence to form a circulating and filtered oil circuit system. Preferably, a pipe joint 14 is also included, and the other end of the rear oil pipe 13 is connected to the hammer tool 16 body through the pipe joint 14 . In this embodiment, there is no specific limitation on the way of connecting and fixing the rear oil pipe 13 and the hammer tool 16 body, as long as the fixed connection can be realized.

When the hammering tool 16 is working vertically downward, the position where the front oil pipe 12 is connected to the body of the hammering tool 16 is lower than the position where the grease deposits in the body of the hammering tool 16, for Grease is naturally introduced into the front oil pipe 12 . If the hammering tool 16 is an electric pick, the connection between the front oil pipe 12 and the electric pick body is closer to the pick head of the electric pick than the connection between the rear oil pipe 13 and the electric pick body.

In the preferred embodiment, it includes a hollow vibration block 6 and two balance springs arranged on the first body 31 of the cylinder body 3, and the two balance springs are the first balance spring 4 and the second balance spring 17 , wherein, one end of the first balance spring 4 abuts against one end of the first body 31 of the cylinder 3, and the other end of the first balance spring 4 is sleeved on one end of the vibrating block 6; One end of the second balance spring 17 abuts against the other end of the first body 31 of the cylinder 3 , and the other end of the second balance spring 17 is sleeved on the other end of the vibrating mass 6 . Further, it also includes two second sealing rubber rings 5, a third sealing rubber ring 10 and a cylinder head 11, the two second sealing rubber rings 5 are sleeved on both sides of the vibrating block 6 respectively, The third sealing rubber ring 10 is arranged between the second balance spring 17 and the cylinder cover 11, and the cylinder cover 11 vibrates the first balance spring 4, the two second sealing rubber rings 5, The block 6, the steel ball 7, the spring 8, the elastic cylindrical pin 9, the second balance spring 17 and the third sealing rubber ring 10 are covered in the first body 31 of the cylinder. This embodiment can use the vibration of the body of the hammer tool 16 itself during operation and the effect of the balance spring to make the vibrating block 6 oscillate back and forth without additional power drive, thereby forming a piston effect and driving the grease to generate circulation. Effect.

In a preferred embodiment, a first one-way valve is arranged in the middle of the vibration block 6, which is used to conduct the oil circuit system in one direction, so that the grease in the oil circuit can only flow in one direction from the front oil pipe 12 to the rear oil pipe 13, while No grease backflow. In this embodiment, there is no specific structural limitation on the first one-way valve, as long as the first one-way valve can realize the function of one-way conduction, it falls within the scope of protection of this patent. For example, in this embodiment, the first one-way valve includes a steel ball 7, a spring 8, an elastic cylindrical pin 9, a first through hole 20 and a second through hole 21, wherein one end of the first through hole 20 passes through Connect the side of the vibration block 6 close to the second balance spring 17, and the other end is connected with the second through hole 21; one end of the second through hole 21 is connected with the first through hole 20, and the other end is connected with the second through hole 21. One end of the vibration block 6 is connected to the side close to the first balance spring 4; the steel ball 7, the spring 8, and the elastic cylindrical pin 9 are connected in sequence, and the steel ball 7 abuts against the first balance spring 4. The through hole 20 is away from the side of the second balance spring 17 .

The diameter of the steel ball 7 is larger than the diameter of the first through hole 20 and smaller than the diameter of the second through hole 21 . Preferably, the junction of the first through hole 20 and the second through hole 21 is a conical surface or a right-angled surface. When there is grease in the oil passage, the grease in the first through hole pushes the steel ball away, and flows through both sides of the steel ball in the second through hole; and when there is grease backflow in the oil passage, Driven by grease, the steel ball blocks the first through hole. Therefore, the setting of the above structure forms a one-way valve effect, so that the oil circuit system drives the grease to flow in one direction without causing the grease to flow back.

In a preferred embodiment, a second one-way valve 15 is also included, the inlet end of the second one-way valve 15 is connected to the body of the hammering tool 16, and the outlet end of the second one-way valve 15 is connected to the front oil pipe. 12 connections. The setting of the second one-way valve 15 is beneficial to prevent the backflow of grease in the oil circuit.

The present invention additionally discloses a hammering tool, which includes the above-mentioned circulation filtering oil circuit system. Preferably, the hammering tool is any one of electric picks, electric hammers, electric drills, air picks, air hammers and air drills among hammer hammer products. Likewise, the hammering tool may be a plate compactor or a compactor. This embodiment mainly protects related vibration tools that use the principle of vibration to realize the circulation filtering function, and the specific protection of this embodiment is not limited to the hammering tools listed above.

Compared with the previous design scheme, the design scheme of the present invention has the following advantages:

1. In the present invention, a vibrating block is set on the premise of no additional power drive, and a balance spring is respectively set on both sides of the vibrating block. Relying on the vibration of the machine itself and the effect of the balancing spring, the vibrating block will vibrate back and forth, thereby forming a piston effect , to drive the grease to produce a circulation effect;

2. The vibrating block in the present invention is hollow so that grease can flow from the middle, and steel balls, balance springs and elastic cylindrical pins are arranged in the middle of the vibrating block to form a one-way valve effect, thereby driving the grease to flow in one direction;

3. In the present invention, a one-way valve needs to be set at the starting point of the oil circuit circulation, and a one-way valve is arranged in the middle of the hollow oil circuit of the vibrating block, so as to form a driving effect. Make the grease flow from A (the part where the grease is easy to deposit) to B (the part that needs to be lubricated) shown in Figure 3 to form a circulating oil circuit, thereby improving better lubrication effect and avoiding grease leakage;

4. The present invention arranges a magnetic force cover on the cylinder body. The magnetic force cover has a magnet on it. During the flow of grease, it will absorb the mixed iron filings in the grease (the wear of the internal machinery and gear parts will produce iron filings), thereby Play the role of filtering grease, and further improve the overall life of the machine.

The above is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed in the present invention can easily think of changes or Replacement should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be determined by the protection scope of the claims.

Claims (9)

1. An oil circuit system of circulating filtration, which is used for circulating and filtering the grease at the place where the grease deposits in the hammering tool, is characterized in that it comprises a cavity, a front oil pipe, a cylinder block, a magnetic cover and a rear oil pipe, wherein, The cylinder block includes a first body and a second body, both sides of the first body are respectively connected to the front oil pipe and the rear oil pipe, and the second body is vertically arranged on the first body; The magnetic cover is sleeved on the second body, thereby forming an accommodating space inside the second body, the accommodating space is connected through the space in the first body, and the magnetic cover A magnet is embedded on the top, and the magnet is used to absorb iron filings mixed in the grease in the oil circuit, and adsorb the iron filings in the accommodating space; The cavity is located inside the hammer tool body; One end of the front oil pipe is connected to the downstream of the cavity, and the other end is sleeved on one side of the first body of the cylinder block; One end of the rear oil pipe is connected to the upstream of the cavity, and the other end is sleeved on the other side of the first body of the cylinder; The cavity, the front oil pipe, the cylinder block, the magnetic cap and the rear oil pipe are connected in sequence to form a circulating and filtered oil circuit system. 2. A circulation filtering oil circuit system according to claim 1, characterized in that it comprises a hollow vibrating mass and two balance springs arranged in the first body, and the two balance springs The springs are a first balance spring and a second balance spring, wherein, One end of the first balance spring abuts against one end of the first cylinder body, and the other end of the first balance spring is sleeved on one end of the vibrating block; One end of the second balance spring abuts against the other end of the first cylinder body, and the other end of the second balance spring is sleeved on the other end of the vibration block. 3 . The circulating filtering oil circuit system according to claim 2 , wherein a first one-way valve is arranged in the middle of the vibrating block for unidirectionally conducting the oil circuit system. 4 . 4. A circulation filtering oil circuit system according to claim 3, wherein the first one-way valve comprises a steel ball, a spring, an elastic cylindrical pin, a first through hole and a second through hole, wherein , One end of the first through hole is connected to the side of the vibrating block close to the second balance spring, and the other end is connected to the second through hole; One end of the second through hole is connected to the first through hole, and the other end is through connected to the side of the vibrating block close to the first balance spring; The steel ball, the spring, and the elastic cylindrical pin are sequentially connected, and the steel ball abuts against a side of the first through hole away from the second balance spring; The diameter of the steel ball is larger than the diameter of the first through hole and smaller than the diameter of the second through hole. 5 . The circulating filtering oil circuit system according to claim 4 , wherein the connection between the first through hole and the second through hole is a conical surface or a right-angled surface. 6 . 6. A circulation filtering oil circuit system according to claim 1, characterized in that it comprises a second one-way valve, the inlet port of the second one-way valve is connected with the hammer tool body, and the second one-way valve The outlet port of the check valve is connected with the front oil pipe. 7. The circulating and filtering oil circuit system according to claim 1, characterized in that, the outer side of the second body is provided with external threads, and the inner side of the magnetic cover is provided with internal threads, and the two are connected by threads . 8 . The circulation filtering oil circuit system according to claim 1 , further comprising a pipe joint, the other end of the rear oil pipe is connected to the hammer tool body through the pipe joint. 9. A hammering tool, characterized in that it comprises the circulating and filtering oil circuit system according to any one of claims 1 to 8.