Vibration control hammer

Abstract

The utility model belongs to electric hammer technical field, concretely relates to a vibration control electric hammer, including shell and motor, the motor fixed mounting is in the inside of shell, the inside rotation of shell is connected with main shaft and axle cylinder, motor and main shaft transmission connection, main shaft and axle cylinder transmission connection, the inside slide of axle cylinder is connected with hammering subassembly, one end fixed mounting of hammering subassembly has installation end, one end of axle cylinder is provided with transmission assembly, one end of transmission assembly is connected with one end of hammering subassembly. The utility model, main shaft rotation drives swing bearing rotation and drives transmission assembly reciprocating movement, one end of transmission assembly is connected with one end of hammering subassembly, thereby drives hammering subassembly reciprocating movement and hammers the target object, one end of sliding block is connected with one end of hammering block, reduces the impact between hammering block and sliding block in the process of reciprocating motion, to improve the life.

Description

Technical Field

[0001] This utility model belongs to the field of electric hammer technology, specifically relating to a vibration-controlled electric hammer. Background Technology

[0002] A hammer drill is a widely used power tool. It's based on an electric drill, but with the addition of a piston driven by an electric motor and connected by a crankshaft. This piston compresses air reciprocally within a cylinder, causing periodic changes in air pressure. These changing pressures drive a hammer within the cylinder to repeatedly strike the top of the drill bit, essentially striking the drill bit with a hammer – hence the name "hammer drill." In typical use, the hammer's reciprocating motion frequently collides with the drill bit, resulting in significant impact. Over time, this can lead to hammer fatigue and damage, reducing its lifespan. Utility Model Content

[0003] The purpose of this invention is to provide a vibration-controlled electric hammer that reduces the impact between the hammer block and the slider during reciprocating motion, thereby improving its service life and solving the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a vibration-controlled electric hammer, comprising a housing and a motor, wherein the motor is fixedly installed inside the housing, a main shaft and a shaft cylinder are rotatably connected inside the housing, the motor and the main shaft are drive-connected, the main shaft and the shaft cylinder are drive-connected, a hammering assembly is slidably connected inside the shaft cylinder, an installation end is fixedly installed at one end of the hammering assembly, a transmission assembly is provided at one end of the shaft cylinder, one end of the transmission assembly is in contact with one end of the hammering assembly, and a swing bearing is provided in the middle of the side wall of the main shaft, the main shaft being drive-connected to the transmission assembly through the swing bearing.

[0005] Furthermore, a first gear is fixedly sleeved on one end of the main shaft sidewall and the output shaft of the motor, and the two first gears are meshed together. A second gear is fixedly sleeved on the other end of the main shaft sidewall and the sidewall of the shaft cylinder, and the two second gears are meshed together.

[0006] Furthermore, the inner wall of the shaft cylinder is fixedly connected with equally spaced slide rails.

[0007] Furthermore, the hammering assembly includes a hammering block slidably connected inside the shaft cylinder. The sidewall of the hammering block is provided with equidistantly distributed first sliding grooves. A plurality of slide rails are slidably connected inside the plurality of first sliding grooves. A transmission rod is fixedly connected to one end of the first sliding groove, and the transmission rod passes through one end of the shaft cylinder.

[0008] Furthermore, a spring is sleeved on the side wall of the transmission rod, and both ends of the spring are fixedly connected to one end of the inner wall of the shaft cylinder and one end of the hammer block, respectively.

[0009] Furthermore, the transmission assembly includes a slider slidably connected inside the shaft cylinder, the side wall of the slider is provided with equally spaced second slide grooves, a plurality of slide rails are slidably connected inside the plurality of second slide grooves, one end of the slider is provided with an end block, and one end of the end block is rotatably connected to one end of the slider through a bearing.

[0010] Furthermore, a notch is provided in the middle of the end block, and waist-shaped grooves are provided at both ends of the notch. A shaft is slidably connected between the two waist-shaped grooves, and a connecting rod is fixedly connected to the side wall of the shaft. One end of the connecting rod is fixedly connected to a swing bearing.

[0011] Compared with the prior art, the beneficial effects of this utility model are: the rotation of the main shaft drives the rotation of the swing bearing, which in turn drives the transmission component to move back and forth. One end of the transmission component is in contact with one end of the hammering component, thereby driving the hammering component to move back and forth to hammer the target object. One end of the slider is in contact with one end of the hammering block, which reduces the impact between the hammering block and the slider during the reciprocating motion, thereby improving the service life. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the internal structure of the present invention;

[0013] Figure 2 This utility model Figure 1 A magnified structural diagram of part A in the middle.

[0014] The attached diagram lists the components represented by each number as follows:

[0015] 1. Housing; 2. Motor; 3. Main shaft; 31. First gear; 32. Second gear; 4. Shaft cylinder; 41. Slide rail; 5. Hammering assembly; 51. Hammering block; 52. First slide groove; 53. Transmission rod; 54. Spring; 6. Mounting end; 7. Transmission assembly; 71. Slider; 72. Second slide groove; 73. End block; 74. Notched groove; 75. Waist-shaped groove; 76. Shaft; 77. Connecting rod; 8. Swing bearing. Detailed Implementation

[0016] To make the objectives and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the following text is merely used to describe one or more specific embodiments of this utility model and does not strictly limit the scope of protection specifically claimed by this utility model.

[0017] like Figure 1 and 2As shown, a vibration-controlled electric hammer includes a housing 1 and a motor 2. The motor 2 is fixedly installed inside the housing 1. A main shaft 3 and a cylinder 4 are rotatably connected inside the housing 1. The motor 2 and the main shaft 3 are drive-connected, and the main shaft 3 and the cylinder 4 are drive-connected. A hammering assembly 5 is slidably connected inside the cylinder 4. An installation end 6 is fixedly installed at one end of the hammering assembly 5. A transmission assembly 7 is provided at one end of the cylinder 4. One end of the transmission assembly 7 is in contact with one end of the hammering assembly 5. A swing bearing 8 is provided in the middle of the side wall of the main shaft 3. The main shaft 3 is drive-connected to the transmission assembly 7 through the swing bearing 8. A first gear 31 is fixedly sleeved on one end of the side wall of the main shaft 3 and the output shaft of the motor 2. The two first gears 31 are meshed. A second gear 32 is fixedly sleeved on the other end of the side wall of the main shaft 3 and the side wall of the cylinder 4. The two second gears 32 are meshed.

[0018] According to the above structure, when using this electric hammer, the power is turned on and the motor 2 is started. Through the transmission of the two first gears 31, the main shaft 3 is driven to rotate. After the main shaft 3 rotates, it drives the shaft cylinder 4 to rotate through the transmission of the two second gears 32. In turn, it drives the hammering assembly 5 inside the shaft cylinder 4 to rotate. After the hammering assembly 5 rotates, it drives the mounting end 6 to rotate. The rotation of the main shaft 3 drives the swing bearing 8 to rotate, which in turn drives the transmission assembly 7 to move back and forth. One end of the transmission assembly 7 is in contact with one end of the hammering assembly 5, thereby driving the hammering assembly 5 to move back and forth to hammer the target object.

[0019] like Figure 2 As shown, the transmission assembly 7 includes a slider 71 slidably connected inside the shaft cylinder 4. The side wall of the slider 71 is provided with second slide grooves 72 distributed at equal intervals. Several slide rails 41 are slidably connected inside the several second slide grooves 72. One end of the slider 71 is provided with an end block 73. One end of the end block 73 is rotatably connected to one end of the slider 71 through a bearing. The middle part of the end block 73 is provided with a notch 74. Both ends of the notch 74 are provided with waist-shaped grooves 75. A shaft 76 is slidably connected between the two waist-shaped grooves 75. A connecting rod 77 is fixedly connected to the side wall of the shaft 76. One end of the connecting rod 77 is fixedly connected to the swing bearing 8.

[0020] According to the above structure, during use, the main shaft 3 drives the swing bearing 8 to rotate, the swing bearing 8 drives the connecting rod 77 to swing, the connecting rod 77 drives the end block 73 to reciprocate through the shaft 76, the end block 73 drives the slider 71 to reciprocate, and after the shaft cylinder 4 rotates, it drives the slider 71 to rotate through the transmission of the slide rail 41. The slider 71 rotates and reciprocates at the same time.

[0021] like Figure 2As shown, the inner wall of the shaft cylinder 4 is fixedly connected with equally spaced slide rails 41. The hammering assembly 5 includes a hammering block 51 slidably connected inside the shaft cylinder 4. The side wall of the hammering block 51 is provided with equally spaced first slide grooves 52. Several slide rails 41 are slidably connected inside several first slide grooves 52. One end of the first slide groove 52 is fixedly connected to a transmission rod 53. The transmission rod 53 passes through one end of the shaft cylinder 4. A spring 54 is sleeved on the side wall of the transmission rod 53. Both ends of the spring 54 are fixedly connected to one end of the inner wall of the shaft cylinder 4 and one end of the hammering block 51, respectively.

[0022] According to the above structure, the hammer block 51 and the slider 71 rotate synchronously under the drive of the shaft cylinder 4. The slider 71 and the spring 54 work together to drive the hammer block 51 to reciprocate, which in turn drives the transmission rod 53 to reciprocate. One end of the slider 71 is in contact with one end of the hammer block 51. During the reciprocating motion, the impact between the hammer block 51 and the slider 71 is reduced, thereby improving the service life.

[0023] The working principle of this utility model is as follows: When in use, the electric hammer is connected to the power supply, and the motor 2 is started. Through the transmission of two first gears 31, the main shaft 3 is driven to rotate. After the main shaft 3 rotates, it drives the shaft cylinder 4 to rotate through the transmission of two second gears 32. This, in turn, drives the hammering assembly 5 inside the shaft cylinder 4 to rotate. The rotation of the hammering assembly 5 drives the mounting end 6 to rotate. The rotation of the main shaft 3 drives the swing bearing 8 to rotate, which in turn drives the transmission assembly 7 to reciprocate. One end of the transmission assembly 7 is in contact with one end of the hammering assembly 5, thereby driving the hammering assembly 5 to reciprocate and hammer the target object. In use, the main shaft 3 drives the swing bearing 8 to rotate, and the swing... The moving bearing 8 drives the connecting rod 77 to swing. The connecting rod 77 drives the end block 73 to reciprocate through the shaft 76. The end block 73 drives the slider 71 to reciprocate. After the shaft cylinder 4 rotates, it drives the slider 71 to rotate through the slide rail 41. The slider 71 rotates and reciprocates at the same time. Under the drive of the shaft cylinder 4, the hammer block 51 and the slider 71 rotate synchronously. The slider 71 and the spring 54 cooperate to drive the hammer block 51 to reciprocate, which in turn drives the transmission rod 53 to reciprocate. One end of the slider 71 is in contact with one end of the hammer block 51. During the reciprocating motion, the impact between the hammer block 51 and the slider 71 is reduced, thereby improving the service life.

[0024] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the field.

Claims

1. A vibration-controlled electric hammer, comprising a housing (1) and a motor (2), characterized in that: The motor (2) is fixedly installed inside the housing (1). The housing (1) is rotatably connected to the main shaft (3) and the shaft cylinder (4). The motor (2) and the main shaft (3) are connected in a transmission. The main shaft (3) and the shaft cylinder (4) are connected in a transmission. The shaft cylinder (4) is slidably connected to the hammering assembly (5). One end of the hammering assembly (5) is fixedly installed with an installation end head (6). One end of the shaft cylinder (4) is provided with a transmission assembly (7). One end of the transmission assembly (7) is in contact with one end of the hammering assembly (5). The middle part of the side wall of the main shaft (3) is provided with a swing bearing (8). The main shaft (3) is connected in a transmission through the swing bearing (8) to the transmission assembly (7).

2. The vibration-controlled electric hammer according to claim 1, characterized in that: One end of the side wall of the main shaft (3) and the output shaft of the motor (2) are both fixedly fitted with a first gear (31), and the two first gears (31) are meshed together. The other end of the side wall of the main shaft (3) and the side wall of the shaft cylinder (4) are both fixedly fitted with a second gear (32), and the two second gears (32) are meshed together.

3. The vibration-controlled electric hammer according to claim 2, characterized in that: The inner wall of the shaft cylinder (4) is fixedly connected with equally spaced slide rails (41).

4. A vibration-controlled electric hammer according to claim 3, characterized in that: The hammering assembly (5) includes a hammering block (51) slidably connected inside the shaft cylinder (4). The side wall of the hammering block (51) is provided with equidistant first sliding grooves (52). Several slide rails (41) are slidably connected inside several first sliding grooves (52). One end of the first sliding groove (52) is fixedly connected to a transmission rod (53), and the transmission rod (53) passes through one end of the shaft cylinder (4).

5. A vibration-controlled electric hammer according to claim 4, characterized in that: The transmission rod (53) is fitted with a spring (54) on its side wall. Both ends of the spring (54) are fixedly connected to one end of the inner wall of the shaft cylinder (4) and one end of the hammer block (51), respectively.

6. A vibration-controlled electric hammer according to claim 5, characterized in that: The transmission assembly (7) includes a slider (71) slidably connected inside the shaft cylinder (4). The side wall of the slider (71) is provided with second slide grooves (72) distributed at equal intervals. Several slide rails (41) are slidably connected inside several second slide grooves (72). One end of the slider (71) is provided with an end block (73). One end of the end block (73) is rotatably connected to one end of the slider (71) through a bearing.

7. A vibration-controlled electric hammer according to claim 6, characterized in that: The end block (73) has a notch (74) in the middle, and waist-shaped grooves (75) are provided at both ends of the notch (74). A shaft (76) is slidably connected between the two waist-shaped grooves (75). A connecting rod (77) is fixedly connected to the side wall of the shaft (76). One end of the connecting rod (77) is fixedly connected to the swing bearing (8).

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