A dust-proof hydraulic breaker

Abstract

The utility model relates to the technical field of hydraulic breakers, and specifically discloses a dustproof hydraulic breaker, comprising an outer shell, a connecting shell is arranged at the top end of the outer shell, a drill rod is passed through the lower part of the outer shell, and a dustproof mechanism is arranged on one side of the drill rod at the bottom end of the outer shell; the dustproof mechanism comprises a sealing shell, the sealing shell is fixed at the bottom end of the outer shell, and a spray hole is opened on the outer wall of the sealing shell, a sponge is arranged inside the sealing shell, and a through hole is opened on the inner wall of the sponge corresponding to the position of the drill rod, a sliding shell is passed through the bottom end of the sealing shell, and a pressure block is fixed on the top end of the sliding shell, and the connection between the drill rod and the outer shell is sealed to prevent dust from entering through the sealing shell and the sponge, in conjunction with a water tank, a conveying pipe and an inlet pipe, and at the same time, through the cooperation of the spray hole, the sliding shell, the limit ring and the pressure block, the sponge can be squeezed, and the water source is sprayed out to absorb the diffused dust and the like, thereby achieving a dust removal effect.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic breakers, in particular to a dustproof hydraulic breakers. Background Art

[0002] Hydraulic breaker, also known as hydraulic breaker or hydraulic stone crusher, is powered by the pressure oil provided by the pump station of the excavator or loader. Hydraulic breaker has become an important working tool of hydraulic excavator. Some people also install hydraulic breaker on excavator loader or wheel loader for crushing.

[0003] In the existing technology, the hydraulic breaker uses the static pressure of liquid as the power to drive the piston rod to drive the drill rod to move. When working, the drill rod continuously strikes the rock at a high frequency of hundreds of times per minute until the rock is broken.

[0004] In the existing technical solutions, the hydraulic breaker raises a large amount of dust, sand and gravel powder during the crushing process. At the same time, there is a gap between the drill rod and the breaker shell. The dust will enter the oil cylinder along the gap along with the reciprocating motion of the drill rod, causing the dust to be adsorbed in the cylinder, destroying the sliding oil film of the piston rod, and even damaging the oil seal and the piston, thereby causing hydraulic oil leakage. Summary of the invention

[0005] The purpose of the utility model is to provide a dustproof hydraulic breaker, which can squeeze the sponge and let the water source spray out to absorb the diffused dust and powder, so as to achieve the effect of dust removal, so as to solve the problems raised in the above background technology.

[0006] To achieve the above object, the utility model provides the following technical solution: a dustproof hydraulic breaker, comprising a shell, a connecting shell is arranged at the top of the shell, a drill rod is passed through the bottom of the shell, and a dustproof mechanism is arranged on one side of the drill rod at the bottom end of the shell;

[0007] The dustproof mechanism includes a sealing shell, which is fixed at the bottom end of the outer shell, and a spray hole is opened on the outer wall of the sealing shell. A sponge is arranged inside the sealing shell, and a through hole is opened on the inner wall of the sponge at the position corresponding to the drill rod. A sliding shell is passed through the bottom end of the sealing shell, and a pressure block is fixed on the top end of the sliding shell. A limiting ring is fixed on the outer wall of one end of the sliding shell that passes through the sealing shell.

[0008] Preferably, a sliding structure is formed between the sliding shell and the sealing shell, and a clamping structure is formed between the sealing shell and the limiting ring.

[0009] Preferably, a water tank is fixed to one side of the outer wall of the shell, a delivery pipe is fixed to the bottom end of the water tank, and an introduction pipe is connected between the delivery pipe and the sealing shell.

[0010] Preferably, a slide groove is provided on one side of the outer wall of the connecting shell, and a pushing mechanism is provided on one side of the slide groove.

[0011] Preferably, the pushing mechanism includes a connecting rod, which is slidably connected to the inside of the slide groove, and a pressing plate is fixed to the axial end of the connecting rod that penetrates into the water tank, and an air leakage hole is opened on the inner wall of the pressing plate.

[0012] Preferably, the pushing mechanism further comprises a blocking rod, the blocking rod is fixed to the bottom end of the pressing plate, a sealing gasket is connected below the blocking rod, and a connecting hole is provided at the position of the sealing gasket at the bottom end of the water tank.

[0013] Preferably, the size of the sealing gasket matches the size of the connecting hole, and a sliding structure is formed between the sealing gasket and the connecting hole.

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

[0015] 1. Through the sealing shell and sponge, in conjunction with the water tank, delivery pipe and introduction pipe, the connection between the drill rod and the shell is sealed to prevent dust from entering. At the same time, through the cooperation of the spray hole, sliding shell, limit ring and pressure block, the sponge can be squeezed, allowing the water source to spray out to absorb the diffused dust and so on, thereby achieving the effect of dust removal;

[0016] 2. Water can be pushed through the connecting rod, pressing plate, sealing rod, sealing gasket and connecting hole, and enter the sealing shell through the delivery pipe and the inlet pipe. Driven by the piston rod in the connecting shell, water is squeezed out according to the frequency of the hydraulic breaker when it is working, so as to avoid the burden on the sealing shell caused by continuous water discharge. The water source entering the sealing shell is extracted through the air vent hole when the pressing plate is reset. 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 structure of the sealing shell of the utility model;

[0020] Figure 3 It is a structural schematic diagram of the sliding shell of the utility model;

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

[0022] Description of reference numerals:

[0023] 1. Shell; 2. Connecting shell; 3. Drill rod; 4. Dust-proof mechanism; 401. Sealing shell; 402. Sponge; 403. Through hole; 404. Spray hole; 405. Sliding shell; 406. Limiting ring; 407. Pressure block; 5. Water tank; 6. Delivery pipe; 7. Inlet pipe; 8. Slide; 9. Pushing mechanism; 901. Connecting rod; 902. Pressing plate; 903. Air vent; 904. Blocking rod; 905. Sealing pad; 906. Connecting hole. 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 4 A dustproof hydraulic breaker comprises a shell 1, a connecting shell 2 is arranged at the top of the shell 1, a drill rod 3 is passed through the bottom of the shell 1, and a dustproof mechanism 4 is arranged on one side of the drill rod 3 at the bottom end of the shell 1; the dustproof mechanism 4 comprises a sealing shell 401, the sealing shell 401 is fixed to the bottom end of the shell 1, a spray hole 404 is opened on the outer wall of the sealing shell 401, a sponge 402 is arranged inside the sealing shell 401, and a through hole 403 is opened on the inner wall of the sponge 402 corresponding to the position of the drill rod 3, and the sealing shell A sliding shell 405 is passed through the bottom end of 401, a pressing block 407 is fixed to the top end of the sliding shell 405, a limiting ring 406 is fixed to the outer wall of one end of the sealing shell 401 through the sliding shell 405, a sliding structure is formed between the sliding shell 405 and the sealing shell 401, and a snap-fit ​​structure is formed between the sealing shell 401 and the limiting ring 406, a water tank 5 is fixed to one side of the outer wall of the outer shell 1, a delivery pipe 6 is fixed to the bottom end of the water tank 5, and an introduction pipe 7 is connected between the delivery pipe 6 and the sealing shell 401.

[0027] By adopting the above technical scheme, the hydraulic cylinder and piston rod and other adapter components of the hydraulic breaker are arranged inside the outer shell 1 and the connecting shell 2, and the crushing operation is carried out in cooperation with the drill rod 3. The sealing shell 401 covers the connection between the outer shell 1 and the drill rod 3 from the bottom to prevent dust from entering. The water tank 5 allows water to enter the sealing shell 401 and soak the sponge 402 through the guidance of the delivery pipe 6 and the introduction pipe 7 to prevent dust from entering and being adsorbed. After the drill rod 3 passes through the sponge 402 through the through hole 403, it passes through the sliding shell 405 and is fixed. The limiting ring 406 is used to prevent the sliding shell 405 from detaching when it moves with the drill rod 3. At the same time, the reciprocating movement of the drill rod 3 allows the pressing block 407 to contact and press the sponge 402, so that the water source is sprayed out through the spray hole 404 to moisten and adsorb the diffused dust and so on, thereby preventing the diffusion and achieving a dust-proof effect.

[0028] Specifically, Figure 1 and Figure 4 As shown, a slide groove 8 is provided on one side of the outer wall of the connecting shell 2, and a pushing mechanism 9 is provided on one side of the slide groove 8. The pushing mechanism 9 includes a connecting rod 901, and the connecting rod 901 is slidably connected to the inside of the slide groove 8. A pressing plate 902 is fixed to the axial end of the connecting rod 901 that penetrates into the water tank 5, and an air leakage hole 903 is provided on the inner wall of the pressing plate 902. The pushing mechanism 9 also includes a blocking rod 904, and the blocking rod 904 is fixed to the bottom end of the pressing plate 902. A sealing gasket 905 is connected to the bottom of the blocking rod 904. A connecting hole 906 is provided at the bottom end of the water tank 5 corresponding to the position of the sealing gasket 905. The size of the sealing gasket 905 matches the size of the connecting hole 906, and a sliding structure is formed between the sealing gasket 905 and the connecting hole 906.

[0029] By adopting the above technical solution, when the piston rod in the connecting shell 2 moves back and forth, it drives the connecting rod 901 to slide stably along the slide groove 8, so that the pressing plate 902 pushes the blocking rod 904, allowing the sealing gasket 905 to enter the connecting hole 906 or pass through the connecting hole 906 to form a piston movement, forming pressure to push the water source into the sealing shell 401 through the delivery pipe 6 and the inlet pipe 7 in a non-stop manner, and following the movement of the drill rod 3 to form a non-stop segmented water supply, avoiding the continuous water supply to fill the sealing shell 401 too much and affect the use. The pressing plate 902 is provided with a connecting hole 906 to avoid the water source entering the sealing shell 401 being extracted when the pressing plate 902 is reset.

[0030] Working principle: The top of the shell 1 is connected to the inside of the shell 2, and the piston rod is used to perform the crushing operation through the cooperation of external equipment such as a hydraulic pump. The connection end of the drill rod 3 and the shell 1 is sealed by the sealing shell 401. The water tank 5 introduces water into the sealing shell 401 through the delivery pipe 6 and the introduction pipe 7, and soaks the sponge 402. The sponge 402 is sprayed out through the spray hole 404 to absorb the floating dust and prevent it from flying. The drill rod 3 is fixed to the sliding shell 405. The sliding shell 405 is prevented from being separated from the sealing shell 401 by the limit ring 406, and follows the sliding of the drill rod 3 to allow the pressure block 407 to press Tighten the sponge 402, squeeze out the water source and spray it out through the spray hole 404. The through hole 403 opened in the sponge 402 is convenient for the drill rod 3 to penetrate. When the piston rod inside the connecting shell 2 moves, it drives the connecting rod 901 to slide along the slide groove 8, so that the pressing plate 902 slides along the water tank 5, so that the blocking rod 904 drives the sealing gasket 905 to penetrate into the connecting hole 906, forming pressure so that the water source can be guided in sections and continuously through the delivery pipe 6 and the introduction pipe 7 to enter the interior of the sealing shell 401. The pressing plate 902 is provided with an air leakage hole 903 to facilitate the resetting of the pressing plate 902.

[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 dustproof hydraulic breaker, comprising a housing (1), characterized in that: A connecting shell (2) is provided at the top of the shell (1), and a drill rod (3) is inserted from the bottom of the shell (1); a dustproof mechanism (4) is provided on one side of the drill rod (3) at the bottom end of the shell (1); The dustproof mechanism (4) comprises a sealing shell (401), the sealing shell (401) being fixed at the bottom end of the outer shell (1), and the outer wall of the sealing shell (401) being provided with a spray hole (404), a sponge (402) being arranged inside the sealing shell (401), and a through hole (403) being provided on the inner wall of the sponge (402) at a position corresponding to the drill rod (3), a sliding shell (405) passing through the bottom end of the sealing shell (401), and a pressing block (407) being fixed at the top end of the sliding shell (405), and a limiting ring (406) being fixed on the outer wall of one end of the sliding shell (405) passing through the sealing shell (401).

2. A dustproof hydraulic breaker according to claim 1, characterized in that: A sliding structure is formed between the sliding shell (405) and the sealing shell (401), and a snap-fit ​​structure is formed between the sealing shell (401) and the limiting ring (406).

3. A dustproof hydraulic breaker according to claim 1, characterized in that: A water tank (5) is fixed to one side of the outer wall of the outer shell (1), a delivery pipe (6) is fixed to the bottom end of the water tank (5), and an introduction pipe (7) is connected between the delivery pipe (6) and the sealing shell (401).

4. A dustproof hydraulic breaker according to claim 1, characterized in that: A sliding groove (8) is provided on one side of the outer wall of the connecting shell (2), and a pushing mechanism (9) is provided on one side of the sliding groove (8).

5. A dustproof hydraulic breaker according to claim 4, characterized in that: The pushing mechanism (9) comprises a connecting rod (901), the connecting rod (901) being slidably connected inside the slide groove (8), and a pressing plate (902) is fixed to the axial end of the connecting rod (901) that penetrates into the water tank (5), and an air leakage hole (903) is provided on the inner wall of the pressing plate (902).

6. A dustproof hydraulic breaker according to claim 5, characterized in that: The pushing mechanism (9) further comprises a blocking rod (904), the blocking rod (904) being fixed to the bottom end of the pressing plate (902), and a sealing gasket (905) being connected below the blocking rod (904), and a connecting hole (906) is provided at the bottom end of the water tank (5) at a position corresponding to the sealing gasket (905).

7. A dustproof hydraulic breaker according to claim 6, characterized in that: The size of the sealing gasket (905) matches the size of the connecting hole (906), and a sliding structure is formed between the sealing gasket (905) and the connecting hole (906).

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