Hydraulic breaking hammer with high-strength limiting mechanism

Abstract

The hydraulic breaking hammer with the high-strength limiting mechanism comprises a limiting protection mechanism, a hammer body assembly is arranged in the limiting protection mechanism, two pin body assemblies are fixedly arranged on one side of the limiting protection mechanism, the limiting protection mechanism comprises two outer protection plates, one end of one side of each outer protection plate is fixedly provided with a U-shaped limiting plate, and the other end of one side of each outer protection plate is fixedly provided with a hydraulic cylinder. A plurality of evenly-distributed U-shaped limiting rods are fixedly arranged at the other end of one side of each outer protection plate, and connecting rings are fixedly arranged in two connecting holes formed in the other side of each outer protection plate. According to the hydraulic breaking hammer, the connecting pin is arranged in the connecting ring connected with the outer protective plate, in the pin body assembly, the worm gear acts on the worm, then the driving screw rod drives the movable block, limiting of the connecting pin by the limiting pin on the driving screw rod is guaranteed, workers can disassemble and assemble the limiting pin more conveniently, the hydraulic breaking hammer is convenient to assemble and disassemble, and operation of the workers is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic breakers, in particular to a hydraulic breaker with a high-strength limiting mechanism. Background Technique

[0002] The hydraulic breaker is an important tool for crushing operations, and its power source is the pressure oil provided by the pump station of an excavator or a loader. At present, the hydraulic breaker has been widely used in the fields of construction, forestry, etc.

[0003] In view of this, the utility model patent with the authorization announcement number of CN205557629U discloses a hydraulic breaker, which includes a front cylinder block, a middle cylinder block, a rear cylinder block, a reversing valve, a piston and a drill rod. The two ends of the middle cylinder block are respectively connected with the front cylinder block and the rear cylinder block. The drill rod is arranged on the front cylinder block, and the piston is connected with the drill rod. The reversing valve is arranged on the middle cylinder block and is used in cooperation with the piston. A pressure relief oil groove is arranged on the middle cylinder block and is used in cooperation with the piston. The advantages are that the structure of the utility model is simple, the failure rate is low and the service life is long.

[0004] However, there are still some problems with the hydraulic breaker in the above patent application: At present, when the hydraulic breaker is in use, the hydraulic breaker needs to be connected to an excavator. During the installation and disassembly process of the hydraulic breaker, the limiting operation of the connecting pin is relatively inconvenient, resulting in inconvenient use for personnel. Content of the Utility Model

[0005] In order to solve the above problems, the purpose of the utility model is to provide a hydraulic breaker with a high-strength limiting mechanism to solve the problems mentioned in the above background technique.

[0006] To achieve the above purpose, the utility model provides a hydraulic breaker with a high-strength limiting mechanism, which includes a limiting protection mechanism. A hammer body assembly is arranged inside the limiting protection mechanism, and two pin body assemblies are fixedly arranged on one side of the limiting protection mechanism.

[0007] The limiting protection mechanism includes two outer protection plates. At one end of each side of each outer protection plate, a U-shaped limiting plate is fixedly arranged, and at the other end of each side of each outer protection plate, a plurality of uniformly distributed U-shaped limiting rods are fixedly arranged. Connection rings are fixedly arranged in two connection holes opened on the other side of each outer protection plate, and connection pins are inserted between every two corresponding connection rings. The pin body assembly includes a driving box. One side of the inner wall of the driving box is rotatably connected with a driving screw rod. A worm gear is fixedly arranged at the bottom of the outer wall of the driving screw rod. The other side of the inner wall of the driving box is rotatably connected with a worm. The worm is meshed with the worm gear. A movable block is threadedly connected to the top of the outer wall of the driving screw rod, and a limiting pin is fixedly arranged at the top end of the movable block.

[0008] As a preferred technical solution of the present utility model, a protective strip is fixedly arranged on the outer wall of each of the outer protection plates, and a plurality of first long bolts evenly distributed are arranged between the two U-shaped limiting plates, and a second long bolt is arranged between every two opposite U-shaped limiting rods.

[0009] As a preferred technical solution of the present utility model, first limiting pin holes are formed on both sides of two of the connecting rings, and limiting pins are inserted between every two of the first limiting pin holes.

[0010] As a preferred technical solution of the present utility model, a limiting slider is fixedly arranged at one end of each of the movable blocks, a limiting sliding groove is formed on the inner wall surface of the driving box, and the limiting slider is slidably connected in the limiting sliding groove.

[0011] As a preferred technical solution of the present utility model, the hammer body assembly includes a lower cylinder body, and a plurality of uniformly distributed through studs are fixedly arranged at one end of the lower cylinder body.

[0012] As a preferred technical solution of the present utility model, a middle cylinder body is arranged on one side of the outer wall of the through stud, and an upper cylinder body is arranged in the middle of the outer wall of the through stud, and a locking nut is threadedly connected to one end of each of the through studs.

[0013] The hydraulic breaker with a high-strength limiting mechanism proposed by the present utility model can bring the following beneficial effects:

[0014] 1. For the hydraulic breaker with a high-strength limiting mechanism, a connecting pin is arranged in the connecting ring connected by the outer protection plate. In the pin body assembly, the worm gear acts on the worm, and then the driving screw drives the movable block, so as to ensure the limiting of the connecting pin by the upper limiting pin thereon. It is more convenient for personnel to disassemble and assemble the limiting pin, which is convenient for the installation and disassembly of the hydraulic breaker and convenient for personnel to operate.

[0015] 2. For the hydraulic breaker with a high-strength limiting mechanism, a hammer body assembly is arranged in the limiting protection mechanism, the outer protection plate is connected with a U-shaped limiting plate, the hammer body assembly is acted on by the first long bolt between the U-shaped limiting plates, the outer protection plate is connected with a U-shaped limiting rod, and the hammer body assembly is acted on by the second long bolt between the U-shaped limiting rods, so as to ensure the high-strength limiting of the hammer body assembly and ensure the stability of the hydraulic breaker during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings described herein are used to provide a further understanding of the present utility model and constitute a part of the present utility model. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation to the present utility model. In the drawings:

[0017] Figure 1 is a structural schematic diagram of the present utility model;

[0018] Figure 2 This is an enlarged schematic view of the position A of the present utility model Figure 1 in the middle;

[0019] Figure 3 This is a structural schematic view of the pin body assembly of the present utility model;

[0020] Figure 4 This is a connection structural schematic view of the hammer body assembly of the present utility model;

[0021] Figure 5 This is a back structural schematic view of the U-shaped limit plate of the present utility model.

[0022] In the figure: 1. Limit protection mechanism; 101. Outer protection plate; 102. Protection strip; 103. U-shaped limit plate; 104. U-shaped limit rod; 2. Hammer body assembly; 201. Lower cylinder body; 202. Middle cylinder body; 203. Upper cylinder body; 204. Through stud; 3. Pin body assembly; 301. Driving box; 302. Driving screw; 303. Worm gear; 304. Worm; 305. Movable block; 306. Limit pin; 307. Limit slider; 4. Connecting ring; 5. Connecting pin. Specific embodiments

[0023] In order to more clearly explain the overall concept of the present utility model, the following will be described in detail by way of examples in conjunction with the specification drawings.

[0024] As Figures 1 to 5 shown, the embodiment of the present utility model provides a hydraulic breaker with a high-strength limiting mechanism, including a limit protection mechanism 1, a hammer body assembly 2 is arranged inside the limit protection mechanism 1, and two pin body assemblies 3 are fixedly arranged on one side of the limit protection mechanism 1;

[0025] The limit protection mechanism 1 includes two outer protection plates 101. At one end of each outer protection plate 101, a U-shaped limit plate 103 is fixedly provided. The U-shaped limit plate 103 is provided with a U-shaped limit groove, which can act on the lower cylinder body 201 to ensure its limit. At the other end of each outer protection plate 101, a plurality of uniformly distributed U-shaped limit rods 104 are fixedly provided. Connection rings 4 are fixedly provided in two connection holes opened on the other side of each outer protection plate 101. A connection pin 5 is inserted between every two corresponding connection rings 4. The pin body assembly 3 includes a drive box 301. One side of the inner wall of the drive box 301 is rotatably connected with a drive screw 302. At the bottom of the outer wall of the drive screw 302, a worm gear 303 is fixedly provided. The other side of the inner wall of the drive box 301 is rotatably connected with a worm 304. The worm 304 meshes with the worm gear 303. One end of the worm 304 is provided with a hexagonal drive groove, which is convenient for personnel to drive the worm 304. The top of the outer wall of the drive screw 302 is threadedly connected with a movable block 305. The top end of the movable block 305 is fixedly provided with a limit pin 306. A protective strip 102 is fixedly provided on the outer wall of each outer protection plate 101. A plurality of uniformly distributed first long bolts are arranged between the two U-shaped limit plates 103. Second long bolts are arranged between every two opposite U-shaped limit rods 104. First limit pin holes are opened on both sides of two of the connection rings 4. The limit pin 306 is inserted between every two first limit pin holes. The limit pin 306 is inserted and connected with a second limit pin hole opened on the connection pin 5 to ensure the limit of the connection pin 5. One end of each movable block 305 is fixedly provided with a limit slider 307. A limit chute is opened on the surface of the inner wall of the drive box 301. The limit slider 307 is slidably connected in the limit chute.

[0026] The hammer body assembly 2 includes a lower cylinder body 201. At one end of the lower cylinder body 201, a plurality of uniformly distributed through studs 204 are fixedly provided. A middle cylinder body 202 is arranged on one side of the outer wall of the through studs 204, and an upper cylinder body 203 is arranged in the middle of the outer wall of the through studs 204. A locking nut is threadedly connected to one end of each through stud 204.

[0027] Working principle: During use, in the limit protection mechanism 1, the outer protection plate 101 is connected with a U-shaped limit plate 103 and U-shaped limit rods 104, which are fixed by first long bolts and second long bolts respectively, and can act on the hammer body assembly 2. The U-shaped limit plate 103 acts on the bottom of the lower cylinder body 201 to ensure the high-strength limit of the hammer body assembly 2. When separating the hydraulic breaker from the excavator, personnel can act on the hexagonal drive groove on the worm 304 with a hexagonal wrench, and then drive the worm 304 to act on the worm gear 303. The worm gear 303 drives the drive screw 302 in the drive box 301 to rotate, and then drives the movable block 305 to move away from the connection ring 4, so that the limit pin 306 can be separated from the first limit pin hole opened on the connection ring 4, and personnel can remove the connection pin 5, thus ensuring the separation of the hydraulic breaker from the excavator.

[0028] The above are only embodiments of the present utility model and are not intended to limit the present utility model. For those skilled in the art, various modifications and variations can be made to the present utility model. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the scope of the claims of the present utility model.

Claims

1. A hydraulic breaker with a high-strength limiting mechanism, including a limiting and protecting mechanism (1), a hammer body assembly (2) is arranged inside the limiting and protecting mechanism (1), and two pin body assemblies (3) are fixedly arranged on one side of the limiting and protecting mechanism (1), characterized in that: The limiting and protecting mechanism (1) includes two outer protection plates (101). One end of each side of each outer protection plate (101) is fixedly provided with a U-shaped limiting plate (103), and the other end of each side of each outer protection plate (101) is fixedly provided with a plurality of uniformly distributed U-shaped limiting rods (104). Connecting rings (4) are fixedly arranged in two connecting holes opened on the other side of each outer protection plate (101). A connecting pin (5) is inserted between every two corresponding connecting rings (4). The pin body assembly (3) includes a driving box (301). One side of the inner wall of the driving box (301) is rotatably connected with a driving screw rod (302). A worm gear (303) is fixedly arranged at the bottom of the outer wall of the driving screw rod (302). The other side of the inner wall of the driving box (301) is rotatably connected with a worm (304). The worm (304) is meshed with the worm gear (303). An active block (305) is threadedly connected to the top of the outer wall of the driving screw rod (302). A limiting pin (306) is fixedly arranged at the top end of the active block (305).

2. A hydraulic breaker having a high-strength limiting mechanism according to claim 1, characterized in that: A protective strip (102) is fixedly arranged on the outer wall of each outer protection plate (101). A plurality of uniformly distributed first long bolts are arranged between the two U-shaped limiting plates (103). Second long bolts are arranged between every two opposite U-shaped limiting rods (104).

3. The hydraulic breaker with a high-strength limiting mechanism according to claim 1, characterized in that: First limiting pin holes are opened on both sides of two of the connecting rings (4). A limiting pin (306) is inserted between every two first limiting pin holes.

4. A hydraulic breaker with a high-strength limiting mechanism according to claim 1, wherein: A limiting slider (307) is fixedly arranged at one end of each active block (305). A limiting chute is opened on the surface of the inner wall of the driving box (301). The limiting slider (307) is slidably connected in the limiting chute.

5. The hydraulic breaker with a high-strength limiting mechanism according to claim 1, characterized in that: The hammer body assembly (2) includes a lower cylinder body (201). A plurality of uniformly distributed through studs (204) are fixedly arranged at one end of the lower cylinder body (201).

6. The hydraulic breaker with a high-strength limiting mechanism according to claim 5, characterized in that: A middle cylinder body (202) is arranged on one side of the outer wall of the through stud (204), and an upper cylinder body (203) is arranged in the middle of the outer wall of the through stud (204). A locking nut is threadedly connected to one end of each through stud (204).

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