Liquid-gas combined breaking hammer with adjustable impact force

Abstract

The utility model relates to the technical field of liquid-gas combined type breaking hammers, in particular to an impact-force-adjustable liquid-gas combined type breaking hammer which comprises a shell, a gas shell is arranged in the shell, a breaking rod penetrates out of the bottom end of the shell, a fixed shell is fixed to the lower portion of the outer wall of the shell, a connecting shell is arranged at the front end of the fixed shell, and the connecting shell is connected with a hydraulic cylinder. An adjusting mechanism is arranged in the connecting shell; the adjusting mechanism comprises an electric telescopic rod, the electric telescopic rod is fixed to one side of the interior of the fixing shell, the power output end of the electric telescopic rod is connected with a plugging block, and when impact force is adjusted, input and output of hydraulic oil can be singly controlled through the electric telescopic rod, the plugging block, a first circulating hole and a second circulating hole; the crushing rod is closed under the working condition, backflow of hydraulic oil is avoided, input and output of the hydraulic oil are controlled through cooperation of the pump machine, the conveying pipe and the oil tank, and therefore the impact force is adjusted.

Description

Technical Field

[0001] The utility model relates to the technical field of liquid-gas combined breaking hammers, in particular to a liquid-gas combined breaking hammer with adjustable impact force. Background Art

[0002] There are three types of breakers: pure hydraulic, liquid-gas and nitrogen explosion. The most widely used type is the combined liquid-gas hydraulic breaker. Most breakers belong to this type of product. Some people also install hydraulic breakers on excavators or wheel loaders for breaking operations.

[0003] The hydraulic-gas combined breaker in the prior art relies on the expansion of hydraulic oil and rear compressed nitrogen to push the piston at the same time;

[0004] In the existing technical solutions, objects can be crushed by a breaker, but in the crushing process, the impact force during impact crushing is a fixed impact energy, which is inconvenient to adjust the size of the impact energy individually. It often cannot adapt well to the complex and changeable working conditions in reality, and will cause a lot of energy waste. Summary of the invention

[0005] The purpose of the utility model is to provide a hydraulic-gas combined breaker with adjustable impact force, which can control the input and output of hydraulic oil, thereby adjusting the impact force, so as to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a hydraulic-gas combined breaker hammer with adjustable impact force, comprising a shell, a gas shell is arranged inside the shell, a breaker rod is passed through the bottom end of the shell, a fixed shell is fixed below the outer wall of the shell, a connecting shell is arranged at the front end of the fixed shell, and an adjustment mechanism is arranged inside the connecting shell;

[0007] The adjusting mechanism includes an electric telescopic rod, which is fixed to one side of the interior of the fixed shell, and a blocking block is connected to the power output end of the electric telescopic rod, a first flow hole is opened on the outer wall of the blocking block, and a second flow hole is arranged on one side of the first flow hole on the outer wall of the blocking block, a pump is fixed inside the connecting shell, and a delivery pipe is connected to the output end of the pump, and an oil tank is installed at the bottom end of the connecting shell.

[0008] Preferably, the fixed shell is communicated with the oil tank through a pump and a delivery pipe, and the fixed shell is communicated with the casing.

[0009] Preferably, the blocking block forms a sliding structure with the fixed shell through the electric telescopic rod, and the blocking block is connected with the conveying pipe through the first flow hole.

[0010] Preferably, a receiving groove is provided inside the fixed shell, and a flow groove is provided on the outer wall of the fixed shell facing the shell body.

[0011] Preferably, a cleaning mechanism is provided inside the storage groove, and the cleaning mechanism includes a support rod, the support rod is fixed inside the storage groove, and a rotating rod passes through the inside of the support rod, one end of the rotating rod is connected to a blade, and a cleaning scraper is installed on the other end of the rotating rod, and a filter is embedded in the inside of the second flow hole.

[0012] Preferably, the rotating rod penetrates into the interior of the supporting rod, and a rotating structure is formed between the rotating rod and the supporting rod.

[0013] Preferably, the cleaning blade is tightly fitted to the filter screen, and a rotating structure is formed between the cleaning blade and the filter screen.

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

[0015] 1. Through the electric telescopic rod, the blocking block, the first flow hole and the second flow hole, when adjusting the impact force, the input and output of the hydraulic oil can be controlled in a single way, and the hydraulic oil can be sealed when the breaker rod is working to prevent the hydraulic oil from flowing back. Through the cooperation of the pump, the delivery pipe and the oil tank, the input and output of the hydraulic oil can be controlled, thereby adjusting the impact force;

[0016] 2. Impurities are filtered out of the extracted hydraulic oil through the second flow hole and the filter to prevent it from entering the oil tank and causing pollution. The filter can be cleaned and scraped with the support rod, rotating rod, blades and cleaning scraper to avoid blockage and affect circulation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 This is the overall structural view of the utility model;

[0019] Figure 2 This is a schematic diagram of the internal structure of the fixed shell of the utility model;

[0020] Figure 3 This is a schematic diagram of the internal structure of the connection shell of the utility model;

[0021] Figure 4 It is a schematic diagram of the internal structure of the blocking block of the utility model.

[0022] Description of reference numerals:

[0023] 1. Shell; 2. Air shell; 3. Crushing rod; 4. Fixed shell; 5. Connecting shell; 6. Adjusting mechanism; 601. Electric telescopic rod; 602. Blocking block; 603. First flow hole; 604. Second flow hole; 605. Pump; 606. Delivery pipe; 607. Oil tank; 7. Storage tank; 8. Flow tank; 9. Cleaning mechanism; 901. Filter; 902. Support rod; 903. Rotating rod; 904. Blade; 905. Cleaning scraper. DETAILED DESCRIPTION

[0024] 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.

[0025] The utility model provides a technical solution:

[0026] See also Figures 1 to 3 A hydraulic-gas combined breaker with adjustable impact force comprises a shell 1, a gas shell 2 is arranged inside the shell 1, a breaker rod 3 is passed through the bottom end of the shell 1, a fixed shell 4 is fixed below the outer wall of the shell 1, a connecting shell 5 is arranged at the front end of the fixed shell 4, and an adjusting mechanism 6 is arranged inside the connecting shell 5; the adjusting mechanism 6 comprises an electric telescopic rod 601, the electric telescopic rod 601 is fixed to one side of the inner part of the fixed shell 4, a blocking block 602 is connected to the power output end of the electric telescopic rod 601, and a first flow hole 60 is opened on the outer wall of the blocking block 602 3. A second flow hole 604 is provided on one side of the first flow hole 603 on the outer wall of the blocking block 602. A pump 605 is fixed inside the connecting shell 5. The output end of the pump 605 is connected to a delivery pipe 606. An oil tank 607 is installed at the bottom end of the connecting shell 5. The fixed shell 4 is communicated with the oil tank 607 through the pump 605 and the delivery pipe 606. The fixed shell 4 is communicated with the shell 1. The blocking block 602 forms a sliding structure with the fixed shell 4 through the electric telescopic rod 601. The blocking block 602 is communicated with the delivery pipe 606 through the first flow hole 603.

[0027] By adopting the above technical solution, the hydraulic oil in the shell 1 and the nitrogen in the gas shell 2 are combined to make the breaker rod 3 of the liquid-gas combined breaker hammer work. The two pumps 605 inside the connecting shell 5 cooperate with the delivery pipe 606 and the oil tank 607 to deliver or extract the hydraulic oil inside the shell 1, thereby effectively controlling the impact force. The electric telescopic rod 601 pushes the blocking block 602 to work. When the impact force is increased, the blocking block 602 moves to connect the first flow hole 603 with the feeding delivery pipe 606, so that the liquid The hydraulic oil required for increasing the impact force is pressed into the oil. When the impact force is reduced, the electric telescopic rod 601 continues to push the blocking block 602 to close the first flow hole 603, allowing the second flow hole 604 to communicate with the material extraction and conveying pipe 606, so as to facilitate the extraction of hydraulic oil according to the impact force. When the extraction is completed, the blocking block 602 is reset through the electric telescopic rod 601, so that the first flow hole 603 and the second flow hole 604 are misaligned with the corresponding conveying pipe 606, so as to avoid the vibration during the crushing operation causing the hydraulic oil to flow back and affect the work.

[0028] Specifically, Figure 2 and Figure 4 As shown, a receiving groove 7 is provided inside the fixed shell 4, and a circulation groove 8 is provided on the outer wall of the fixed shell 4 facing the shell body 1. A cleaning mechanism 9 is provided inside the receiving groove 7. The cleaning mechanism 9 includes a support rod 902, and the support rod 902 is fixed inside the receiving groove 7. A rotating rod 903 passes through the inside of the support rod 902, and a blade 904 is connected to one end of the rotating rod 903. A cleaning blade 905 is installed on the other end of the rotating rod 903. A filter screen 901 is embedded in the inside of the second circulation hole 604, and the rotating rod 903 passes through the inside of the support rod 902. A rotating structure is formed between the rotating rod 903 and the support rod 902, and the cleaning blade 905 is tightly fitted with the filter screen 901, and a rotating structure is formed between the cleaning blade 905 and the filter screen 901.

[0029] By adopting the above technical solution, the sealing block 602 allows the hydraulic oil to enter through the opened flow groove 8, and allows the hydraulic oil to flow to the first flow hole 603 and the second flow hole 604 through the receiving groove 7. The second flow hole 604 is embedded with the filter screen 901 to prevent the extracted hydraulic oil containing impurities from entering the oil tank 607 and causing pollution. When the hydraulic oil is extracted, the circulating hydraulic oil impacts the blade 904, thereby driving the rotating rod 903 to rotate under the support of the support rod 902, so that the cleaning scraper 905 can rotate in contact with the filter screen 901 to scrape off the adsorbed dust and impurities to avoid blockage.

[0030] Working principle: First, the hydraulic oil inside the shell 1 and the nitrogen inside the gas shell 2 are matched to allow the crushing rod 3 to perform the crushing operation. Through the oil tank 607 fixed by the connecting shell 5, two groups of pumps 605 and the delivery pipe 606, one group delivers hydraulic oil and the other group extracts hydraulic oil, so as to adjust the impact force according to the control of the hydraulic oil amount. When delivering, the electric telescopic rod 601 embedded in the fixed shell 4 pushes the blocking block 602, so that the first flow hole 603 is connected with the feeding delivery pipe 606 to allow the hydraulic oil to enter. When extracting, the electric telescopic rod 601 continues to extend, so that the second flow hole 604 corresponds to the extraction delivery pipe 606, and the sealing The first flow hole 603 is closed to avoid influence. When it is normal, the electric telescopic rod 601 is reset, and the first flow hole 603 and the second flow hole 604 are closed to prevent backflow. The hydraulic oil enters the storage groove 7 of the blocking block 602 through the flow groove 8, which is convenient for docking with the first flow hole 603 and the second flow hole 604. When extracting, the impurities inside the hydraulic oil are filtered through the filter 901 to avoid entering the oil tank 607 and causing pollution. Under the impact of extracting hydraulic oil, the top blade 904 drives the rotating rod 903 to rotate under the support of the support rod 902, so that the cleaning scraper 905 can scrape off the dust impurities adsorbed by the filter 901 to avoid clogging.

[0031] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A hydraulic-gas combined breaker with adjustable impact force, comprising a housing (1), characterized in that: An air shell (2) is arranged inside the shell (1), and a crushing rod (3) is inserted through the bottom end of the shell (1); a fixed shell (4) is fixed below the outer wall of the shell (1), and a connecting shell (5) is arranged at the front end of the fixed shell (4); an adjusting mechanism (6) is arranged inside the connecting shell (5); The adjustment mechanism (6) comprises an electric telescopic rod (601), the electric telescopic rod (601) being fixed to one side of the interior of the fixed shell (4), and the power output end of the electric telescopic rod (601) being connected to a blocking block (602), the outer wall of the blocking block (602) being provided with a first flow hole (603), and a second flow hole (604) being provided on one side of the first flow hole (603) on the outer wall of the blocking block (602), a pump (605) being fixed inside the connecting shell (5), and the output end of the pump (605) being connected to a delivery pipe (606), and an oil tank (607) being installed at the bottom end of the connecting shell (5).

2. The hydraulic-gas combined breaker with adjustable impact force according to claim 1, characterized in that: The fixed shell (4) is in communication with the oil tank (607) via the pump (605) and the delivery pipe (606), and the fixed shell (4) is in communication with the housing (1).

3. The hydraulic-gas combined breaker with adjustable impact force according to claim 1, characterized in that: The blocking block (602) forms a sliding structure with the fixed shell (4) through the electric telescopic rod (601), and the blocking block (602) is connected to the conveying pipe (606) through the first flow hole (603).

4. The hydraulic-gas combined breaker with adjustable impact force according to claim 1, characterized in that: The interior of the fixed shell (4) is provided with a receiving groove (7), and the outer wall of the fixed shell (4) facing the housing (1) is provided with a circulation groove (8).

5. The hydraulic-gas combined breaker with adjustable impact force according to claim 4, characterized in that: A cleaning mechanism (9) is arranged inside the storage groove (7), and the cleaning mechanism (9) comprises a support rod (902), the support rod (902) is fixed inside the storage groove (7), and a rotating rod (903) passes through the inside of the support rod (902), one end of the rotating rod (903) is connected to a blade (904), and the other end of the rotating rod (903) is installed with a cleaning scraper (905), and a filter screen (901) is embedded inside the second flow hole (604).

6. The hydraulic-gas combined breaker with adjustable impact force according to claim 5, characterized in that: The rotating rod (903) penetrates into the interior of the supporting rod (902), and a rotating structure is formed between the rotating rod (903) and the supporting rod (902).

7. The hydraulic-gas combined breaker with adjustable impact force according to claim 5, characterized in that: The cleaning scraper (905) is tightly fitted to the filter screen (901), and a rotating structure is formed between the cleaning scraper (905) and the filter screen (901).

Images