Novel lower cylinder body and lower nut matching structure of breaking hammer

Abstract

The utility model relates to the technical field of quartering hammer lower cylinder bodies and lower nuts, in particular to a novel quartering hammer lower cylinder body and lower nut matching structure which comprises a lower cylinder body assembly, a steel chisel is arranged in the lower cylinder body assembly, the outer side of the steel chisel is connected with a flat pin, a groove is formed in the lower cylinder body assembly, a lower nut is arranged in the groove, and the flat pin is connected with the outer side of the steel chisel. The lower nut is provided with an oblique angle, one side of the lower nut is connected with a penetrating bolt, one end of the penetrating bolt is connected with an upper nut, one side of the upper nut is provided with a gasket, and the inner side of the groove is further provided with a circular bead. According to the utility model, the wall thickness is reduced and increased, so that the lower nut is not easy to loosen in the high-strength operation process of the breaking hammer; meanwhile, the contact surface of the lower nut and the lower cylinder body is provided with a fillet, so that the lower cylinder body is prevented from cracking in the operation process of the breaking hammer; and the service life of the breaking hammer is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of a lower cylinder body and a lower nut of a breaker hammer, in particular to a novel matching structure of a lower cylinder body and a lower nut of a breaker hammer. Background Art

[0002] The principle of a breaker hammer is to use hydraulic pressure to push the piston forward, and then use reverse hydraulic pressure to pull the piston back. This process generates a strong impact force, which will break the hard object when it is applied to the hard object. The selection and use of a breaker hammer requires consideration of multiple factors, such as the hardness, size, and shape of the object to be broken. In addition, special attention should be paid to safety when using a breaker hammer, and operating procedures should be followed to prevent casualties and equipment damage.

[0003] The current way of matching the lower cylinder body and the lower nut makes the wall thickness of the lower cylinder body between the two lower nuts thinner. During the high-intensity operation of the breaker hammer, the piston and the steel chisel continue to collide; the thin wall is prone to cracking under high strength, and the breaker hammer cannot work; it also greatly affects the service life of the breaker hammer. For this reason, a new breaker hammer lower cylinder body and lower nut matching structure is proposed. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a novel breaker lower cylinder and lower nut matching structure, which overcomes the deficiencies in the prior art and aims to solve the problems in the background technology.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A novel structure of a lower cylinder and a lower nut matching a breaker hammer comprises a lower cylinder assembly, a steel chisel is arranged inside the lower cylinder assembly, a flat pin is connected to the outer side of the steel chisel, a groove is provided on the lower cylinder assembly, a lower nut is arranged in the groove, an oblique angle is provided on the lower nut, a through bolt is connected to one side of the lower nut, an upper nut is connected to one end of the through bolt, a gasket is arranged on one side of the upper nut, and a fillet is also arranged on the inner side of the groove.

[0007] Preferably, a slot is provided on one side of the lower cylinder assembly, and one end of the steel chisel is inserted into the slot.

[0008] Preferably, two through grooves are symmetrically provided on the top surface of the lower cylinder assembly, two flat pins are provided, and the two flat pins are symmetrically installed in the two through grooves, and clamping grooves are symmetrically provided on the outer surface of the steel chisel, the clamping grooves correspond to the through grooves, and the flat pins are clamped in the clamping grooves.

[0009] Preferably, a plurality of the grooves are symmetrically provided, and the plurality of the grooves are all provided on the lower cylinder assembly. A first through hole is provided on one side of the groove, and the first through hole is provided in the lower cylinder assembly. A plurality of through bolts are provided, and one end of the through bolts is connected in the first through hole.

[0010] Preferably, the upper nut is threadedly connected to the other end of the through bolt, and the gasket is also sleeved on the through bolt.

[0011] Preferably, a second through hole is further provided on the lower nut, the second through hole corresponds to the first through hole, the lower nut is connected to the through bolt, the lower nut is movably connected in the groove, and the bevel and the rounded corner are fitted together.

[0012] The beneficial effects of the utility model are:

[0013] The utility model reduces and strengthens the wall thickness, so that the lower nut is not easy to loosen during the high-intensity operation of the breaker hammer; at the same time, the contact surface between the lower nut and the lower cylinder body is rounded to prevent the lower cylinder body from cracking during the operation of the breaker hammer, thereby increasing the service life of the breaker hammer. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a structural schematic diagram of the new type of breaker hammer lower cylinder body and lower nut matching structure proposed by the utility model;

[0015] Figure 2 It is a schematic top view of the structure of the new type of breaker hammer lower cylinder body and lower nut matching structure proposed by the utility model;

[0016] Figure 3 It is a structural schematic diagram of the lower cylinder assembly;

[0017] Figure 4 It is a structural schematic diagram of the lower nut part.

[0018] In the figure: 1, lower cylinder assembly; 2, steel chisel; 3, flat pin; 4, lower nut; 5, through bolt; 6, upper nut; 7, gasket; 8, groove; 9, first through hole; 10, slot; 11, bevel; 12, second through hole; 13, rounded corner. 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] Reference Figure 1-4 The new type of breaker hammer lower cylinder and lower nut matching structure includes a lower cylinder assembly 1, a steel drill 2 is arranged in the lower cylinder assembly 1, a flat pin 3 is connected to the outer side of the steel drill 2, a groove 8 is opened on the lower cylinder assembly 1, the groove 8 is semicircular, a lower nut 4 is arranged in the groove 8, an oblique angle 11 is opened on the lower nut 4, a through bolt 5 is connected to one side of the lower nut 4, an upper nut 6 is connected to one end of the through bolt 5, a gasket 7 is arranged on one side of the upper nut 6, and a fillet 13 is also arranged on the inner side of the groove 8, a slot 10 is opened on one side of the lower cylinder assembly 1, one end of the steel drill 2 is inserted in the slot 10, two through slots are symmetrically opened on the top surface of the lower cylinder assembly 1, two flat pins 3 are arranged, and the two flat pins 3 are symmetrically installed in the two through slots, and a card slot is symmetrically opened on the outer surface of the steel drill 2, the card slot corresponds to the through slot, the flat pin 3 is clamped in the card slot, and the size of the groove 8 is reduced, so that the wall thickness between the grooves 8 is increased.

[0022] In this embodiment, a plurality of grooves 8 are symmetrically provided, and the plurality of grooves 8 are all provided on the lower cylinder assembly 1. A first through hole 9 is provided on one side of the groove 8, and the first through hole 9 is provided in the lower cylinder assembly 1. A plurality of through bolts 5 are provided, and one end of the through bolts 5 is connected to the first through hole 9. The upper nut 6 is threadedly connected to the other end of the through bolt 5, and the gasket 7 is also sleeved on the through bolt 5. A second through hole 12 is also provided on the lower nut 4, and the second through hole 12 corresponds to the first through hole 9. The lower nut 4 is connected to the through bolt 5, and the lower nut 4 is movably connected in the groove 8, and the bevel 11 and the fillet 13 are fitted together.

[0023] Working principle: during installation, place the steel chisel 2 into the slot 10, and then clamp the flat pin 3 on both sides of the steel chisel 2. When impact crushing is performed, since the groove 8 has increased semicircular arcs and fillets 13, and the lower nut 4 has increased the bevel angle 11, the breaker can prevent the lower cylinder body from cracking during operation, thereby increasing the service life of the breaker. In addition, the wall thickness between the grooves 8 is increased, so that the lower nut 4 is not easy to loosen during the high-intensity operation of the breaker.

[0024] 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.

[0025] 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. The new type of breaker lower cylinder and lower nut matching structure is characterized by: include: A lower cylinder assembly (1), wherein a steel chisel (2) is arranged inside the lower cylinder assembly (1), a flat pin (3) is connected to the outer side of the steel chisel (2), a groove (8) is provided on the lower cylinder assembly (1), a lower nut (4) is arranged in the groove (8), an oblique angle (11) is provided on the lower nut (4), a through bolt (5) is connected to one side of the lower nut (4), an upper nut (6) is connected to one end of the through bolt (5), a gasket (7) is provided on one side of the upper nut (6), and a rounded corner (13) is also provided on the inner side of the groove (8).

2. The new type of breaker hammer lower cylinder and lower nut matching structure according to claim 1 is characterized in that: A slot (10) is provided on one side of the lower cylinder assembly (1), and one end of the steel chisel (2) is inserted into the slot (10).

3. The new type of breaker hammer lower cylinder and lower nut matching structure according to claim 2 is characterized in that: Two through grooves are symmetrically provided on the top surface of the lower cylinder assembly (1), two flat pins (3) are provided, and the two flat pins (3) are symmetrically installed in the two through grooves. A clamping groove is symmetrically provided on the outer surface of the steel chisel (2), and the clamping groove corresponds to the through groove, and the flat pin (3) is clamped in the clamping groove.

4. The new type of breaker hammer lower cylinder and lower nut matching structure according to claim 3 is characterized in that: The grooves (8) are symmetrically provided in plurality, and the plurality of grooves (8) are all provided on the lower cylinder assembly (1). A first through hole (9) is provided on one side of the grooves (8), and the first through hole (9) is provided in the lower cylinder assembly (1). The through bolts (5) are provided in plurality, and one end of each through bolt (5) is connected to the first through hole (9).

5. The new type of breaker hammer lower cylinder and lower nut matching structure according to claim 4 is characterized in that: The upper nut (6) is threadedly connected to the other end of the through bolt (5), and the gasket (7) is also sleeved on the through bolt (5).

6. The new type of breaker hammer lower cylinder and lower nut matching structure according to claim 5 is characterized in that: The lower nut (4) is also provided with a second through hole (12), the second through hole (12) corresponds to the first through hole (9), the lower nut (4) is connected to the through bolt (5), the lower nut (4) is movably connected in the groove (8), and the bevel (11) and the rounded corner (13) are in contact with each other.

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