Core of breaking hammer

Abstract

The utility model discloses a breaking hammer machine core which comprises a machine core body, a front cylinder body assembled on the machine core body and a drill rod detachably assembled on the front cylinder body through an installation unit. The installation unit comprises a pair of flat pins arranged in parallel, a connecting piece with the two ends fixedly connected with the ends of the pair of flat pins respectively and a pair of installation bases which are symmetrically arranged relative to the connecting piece and assembled on the outer wall of the front cylinder body, and the pair of flat pins is located between the pair of installation bases. A strip-shaped groove in the same length direction is formed in the outer wall, away from the other flat pin, of each flat pin in a sunken mode, cylindrical parts inserted into the strip-shaped grooves in a sliding mode are arranged on the installation bases in a protruding mode, the connecting piece is detachably connected with the pair of installation bases through the installation pieces, and the cylindrical parts on the pair of installation bases are inserted into the corresponding strip-shaped grooves in a sliding mode respectively. Therefore, the pair of flat pins is limited and prevented from falling on the ground, the flat pins are prevented from being stained with soil and dust, and the flat pins can also be prevented from being lost.

Description

Technical Field

[0001] This utility model relates to the technical field of hydraulic breakers, specifically to a hydraulic breaker mechanism. Background Technology

[0002] A hydraulic breaker is a device used for crushing. Powered by pressurized hydraulic fluid supplied by the pump station of an excavator or loader, it more effectively removes loose rocks and mud from rock crevices during the excavation of building foundations. By increasing the piston and cylinder stroke and using the same diameter for both the piston and chisel, the hydraulic breaker achieves optimal matching with the main unit, rationally utilizing maximum output energy, saving energy, and maximizing work efficiency.

[0003] The existing hydraulic breaker's chisel is assembled to the front cylinder by a pair of flat pins, which are then secured to the front cylinder by a pair of limiting pins. For example, the Chinese patent application CN202221797153.X, entitled "A Hydraulic Breaker Mechanism," discloses a hydraulic breaker mechanism. When replacing the chisel, the limiting pins need to be removed first, and then the flat pins need to be pushed out of the front cylinder. At this time, the flat pins will fall to the ground. Because the flat pins are in contact with the inner cavity of the front cylinder, the outer wall of the flat pins will be covered with grease, which will cause the flat pins to be contaminated with dirt and dust. This is not only difficult to clean, but if soil and dust enter the inner cavity of the front cylinder, it will also affect the sliding of the chisel. Therefore, a hydraulic breaker mechanism needs to be designed. Utility Model Content

[0004] In view of the above-mentioned technical problems, the purpose of this utility model is to overcome the problem in the prior art that when the flat pin falls to the ground during the replacement of the drill rod, it will get covered with mud and dust.

[0005] To achieve the above objectives, this utility model provides a hydraulic breaker mechanism, comprising: a mechanism body, a front cylinder mounted on the mechanism body, and a chisel detachably mounted on the front cylinder via an installation unit;

[0006] The mounting unit includes a pair of parallel flat pins, a connector whose two ends are fixedly connected to the ends of the pair of flat pins, and a pair of mounting seats that are symmetrically arranged about the connectors and are both mounted on the outer wall of the front cylinder body. The pair of flat pins are located between the pair of mounting seats. The outer wall of each flat pin away from the other flat pin has a strip-shaped groove of the same length. The mounting seat has a cylindrical part that slidably inserts into the strip-shaped groove. The connectors are detachably connected to the pair of mounting seats through the mounting seats.

[0007] Preferably, each of the mounting bases is provided with mounting holes, the mounting component is a mounting bolt that can be detachably assembled on a pair of mounting holes, and the connector is provided with a first mounting portion that matches the mounting bolt.

[0008] Preferably, a mounting bracket is provided protruding on the outer wall of the front cylinder block, located above the mounting seat and between a pair of flat pins. The mounting bracket is provided with a second mounting part that matches the mounting bolt. The mounting bolt is assembled on the mounting bracket so that the flat pin fits against the outer wall of the front cylinder block.

[0009] Preferably, the end of the flat pin away from the connector is an arc end that is coaxial with the end of the strip groove away from the connector.

[0010] Preferably, the distance between the flat pin, the connecting piece, and the outer wall of the front cylinder block is set to form an operating space after the flat pin is assembled on the front cylinder block.

[0011] Preferably, the mounting base is detachably assembled to the outer wall of the front cylinder body by a number of bolts.

[0012] According to the above technical solution, the beneficial effects of the hydraulic breaker mechanism provided by this utility model in use are as follows: when the chisel needs to be replaced, the mounting parts are removed from the pair of mounting seats, and the flat pin is pulled or pushed from another direction to separate the flat pin from the front cylinder. Since the cylindrical parts on the pair of mounting seats slide into the corresponding strip grooves respectively, the pair of flat pins are prevented from falling to the ground, avoiding dirt and dust from sticking to the flat pins, and also preventing the flat pins from being lost.

[0013] Other features and advantages of this utility model will be described in detail in the following detailed description section; and all parts not covered in this utility model are the same as or can be implemented using existing technology. Attached Figure Description

[0014] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the following detailed description to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0015] Figure 1 This utility model provides a three-dimensional structural diagram of a hydraulic breaker mechanism. Figure 1 ;

[0016] Figure 2 This utility model provides a three-dimensional structural diagram of a hydraulic breaker mechanism. Figure 2 ;

[0017] Figure 3 This is a partial three-dimensional structural diagram of a hydraulic breaker mechanism provided in this utility model. Figure 1 ;

[0018] Figure 4 This is a partial three-dimensional structural diagram of a hydraulic breaker mechanism provided in this utility model. Figure 2 .

[0019] Explanation of reference numerals in the attached figures

[0020] 1. Front cylinder block; 2. Chisel rod; 3. Flat pin; 4. Connector; 5. Mounting seat; 6. Strip groove; 7. Cylindrical part; 8. Mounting part; 9. Mounting hole; 10. First mounting part; 11. Mounting bracket; 12. Second mounting part; 13. Bolt. Detailed Implementation

[0021] The specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the scope of this utility model.

[0022] In this utility model, unless otherwise stated, directional words such as "upper," "lower," "inner," and "outer" included in the terminology only represent the orientation of the term in its conventional use or are common terms understood by those skilled in the art, and should not be regarded as limitations on the term.

[0023] like Figure 1-4 As shown, a hydraulic breaker mechanism includes: a mechanism body, a front cylinder 1 mounted on the mechanism body, and a chisel 2 detachably mounted on the front cylinder 1 via an installation unit;

[0024] The mounting unit includes a pair of parallel flat pins 3, a connector 4 whose two ends are fixedly connected to the ends of the pair of flat pins 3 respectively, and a pair of mounting seats 5 that are symmetrically arranged about the connector 4 and are both mounted on the outer wall of the front cylinder block 1. The pair of flat pins 3 are located between the pair of mounting seats 5. The outer wall of the flat pin 3 away from the other flat pin 3 is recessed with a strip groove 6 of the same length direction. The mounting seat 5 is provided with a cylindrical part 7 that is slidably inserted into the strip groove 6. The connector 4 can be detachably connected to the pair of mounting seats 5 through the mounting part 8.

[0025] When the chisel 2 needs to be replaced, the mounting part 8 is removed from the pair of mounting seats 5, and the flat pin 3 is pulled or pushed from another direction to separate the flat pin 3 from the front cylinder 1. Since the cylindrical part 7 on the pair of mounting seats 5 slides into the corresponding strip groove 6, the pair of flat pins 3 are prevented from falling to the ground, avoiding dirt and dust from getting on the flat pins 3, and also preventing the flat pins 3 from being lost.

[0026] Each of the mounting bases 5 is provided with mounting holes 9, and the mounting member 8 is a mounting bolt 13 that can be detachably assembled on a pair of mounting holes 9. The connector 4 is provided with a first mounting part 10 that matches the mounting bolt 13.

[0027] After the chisel 2 is inserted into the front cylinder 1, the flat pin 3 is then inserted into the front cylinder 1. The mounting bolt 13 is then assembled onto a pair of mounting seats 5. The mounting bolt 13 passes through a pair of mounting holes 9 and the first mounting part 10, which prevents the flat pin 3 from separating from the front cylinder 1.

[0028] A mounting bracket 11 is provided on the outer wall of the front cylinder block 1, located above the mounting seat 5 and between a pair of flat pins 3. The mounting bracket 11 is provided with a second mounting part 12 that matches the mounting bolt 13. The mounting bolt 13 is assembled on the mounting bracket 11 so that the flat pin 3 fits against the outer wall of the front cylinder block 1.

[0029] After the flat pin 3 is pulled out from the front cylinder block 1, the end of the strip groove 6 away from the connector 4 coincides with the cylindrical part 7. The flat pin 3 is rotated upward around the axis of the cylindrical part 7 so that the flat pin 3 fits against the outer wall of the front cylinder block 1. Then the removed mounting bolt 13 is assembled on the second mounting part 12. At this time, the flat pin 3 is located between the mounting bolt 13 and the outer wall of the front cylinder block 1, thereby restricting the flat pin 3 from rotating and preventing the flat pin 3 from constantly shaking and colliding with the outer wall of the front cylinder block 1 during the replacement process.

[0030] The end of the flat pin 3 away from the connector 4 is an arc end that is coaxial with the end of the strip groove 6 away from the connector 4.

[0031] After the flat pin 3 is pulled out of the front cylinder 1, the arc end of the flat pin 3 is conducive to the rotation of the flat pin 3 so that the flat pin 3 fits against the outer wall of the front cylinder 1.

[0032] The flat pin 3 is assembled on the front cylinder block 1, and the distance between the rear connector 4 and the outer wall of the front cylinder block 1 is set to form an operating space.

[0033] After removing the mounting bolts 13 from the pair of mounting seats 5, the existence of the operating space allows the connector 4 to act as a handle. The flat pin 3 can be pulled out of the front cylinder block 1 by pulling the connector 4; or a tool such as a pry bar can be used to insert it into the operating space, thereby applying a force to the connector 4 away from the front cylinder block 1.

[0034] The mounting base 5 is detachably assembled to the outer wall of the front cylinder block 1 by a number of bolts 13.

[0035] When it is necessary to replace the flat pin 3, the bolt 13 must be loosened first, the pair of mounting seats 5 must be removed, and the old flat pin 3 must be removed and replaced.

[0036] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the specific details of the above embodiments. Within the scope of the technical concept of the present invention, various simple modifications can be made to the technical solution of the present invention, and these simple modifications all fall within the protection scope of the present invention.

[0037] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable way without contradiction. In order to avoid unnecessary repetition, this utility model will not describe the various possible combinations separately.

[0038] Furthermore, various different embodiments of this utility model can be combined in any way, as long as they do not violate the spirit of this utility model, they should also be regarded as the content disclosed by this utility model.

Claims

1. A breaking hammer core, characterized in that, include: The movement body, the front cylinder (1) mounted on the movement body, and the drill rod (2) detachably mounted on the front cylinder (1) via the mounting unit; The mounting unit includes a pair of parallel flat pins (3), a connector (4) whose two ends are fixedly connected to the ends of the pair of flat pins (3) respectively, and a pair of mounting seats (5) arranged symmetrically about the connector (4) and both mounted on the outer wall of the front cylinder (1). The pair of flat pins (3) are located between the pair of mounting seats (5). The outer wall of the flat pin (3) away from the other flat pin (3) is recessed with a strip groove (6) of the same length direction. The mounting seat (5) is provided with a cylindrical part (7) that slides into the strip groove (6). The connector (4) can be detachably connected to the pair of mounting seats (5) through the mounting part (8).

2. A hammer mechanism according to claim 1, wherein Each of the mounting bases (5) is provided with mounting holes (9), the mounting member (8) is a mounting bolt (13) that can be detachably assembled on a pair of mounting holes (9), and the connector (4) is provided with a first mounting part (10) that matches the mounting bolt (13).

3. A hammer mechanism according to claim 2, wherein A mounting bracket (11) is provided on the outer wall of the front cylinder (1), which is located above the mounting seat (5) and between a pair of flat pins (3). The mounting bracket (11) is provided with a second mounting part (12) that matches the mounting bolt (13). The mounting bolt (13) is assembled on the mounting bracket (11) so that the flat pin (3) fits against the outer wall of the front cylinder (1).

4. A hammer mechanism according to claim 1, wherein The end of the flat pin (3) away from the connector (4) is an arc end that is coaxial with the end of the strip groove (6) away from the connector (4).

5. A hammer mechanism according to claim 1, wherein The flat pin (3) is assembled on the front cylinder block (1), and the distance between the rear connector (4) and the outer wall of the front cylinder block (1) is set to form an operating space.

6. A hammer mechanism according to claim 1, wherein The mounting base (5) is detachably mounted on the outer wall of the front cylinder block (1) by a number of bolts (13).

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