Electric hammer device capable of adjusting impact force

Abstract

The utility model discloses an electric hammer device capable of adjusting impact force, which comprises a motor arranged in an electric hammer, a first gear fixedly arranged at one end of an output shaft of the motor and meshed with a second gear, the second gear is rotatably arranged in a shell of the electric hammer, a rotating rod is fixedly arranged at one end of the second gear, and the rotating rod is meshed with the first gear. A third gear is fixedly installed at one end of the rotating rod and meshed with a fourth gear, the fourth gear is rotatably installed in the electric hammer, a piston column is slidably installed in the fourth gear, and an impact force regulating and controlling mechanism is rotatably installed between the rotating rod and the piston column. Through the design of the impact force regulation and control mechanism, the pushed stroke of the piston column can be regulated and controlled, then the impact force can be regulated, and an operator can precisely regulate the impact force according to actual requirements for materials with different hardness such as wood and concrete; and it is ensured that drilling operation can be efficiently completed on various materials in a high-quality mode.

Description

TECHNICAL FIELD

[0001] The utility model relates to electric hammer technical field, concretely is a kind of electric hammer device capable of adjusting impact force. BACKGROUND

[0002] Electric hammer is a kind of electric rotary hammer drill with safety clutch attached with pneumatic hammering mechanism. Electric hammer is a device that uses the principle of piston movement to let the impact drill bit can drill holes on hard materials such as concrete, brick, stone, etc., thereby improving the drilling efficiency.

[0003] The patent with the state authorization patent announcement No. CN209725009U discloses an electric hammer clutch device. An electric hammer clutch device, comprising an electric hammer body, a cylinder, a rotating shaft, a clutch tooth, a meshing tooth, a first transmission assembly, a second transmission assembly for driving the rotating shaft to rotate and a knob assembly connected with the clutch tooth, one end of the first transmission assembly and the electric hammer body are respectively connected at both ends of the piston of the cylinder, the meshing tooth is installed on the cylinder, the clutch tooth is slidingly arranged on the rotating shaft, the clutch tooth is connected or separated with the other end of the first transmission assembly, the clutch tooth is meshed or separated with the meshing tooth, and the second transmission assembly is arranged at one end of the rotating shaft. The utility model drives the clutch tooth to move along the rotating shaft by rotating the knob assembly, so as to drive the clutch tooth to mesh or separate with the meshing tooth, drive the clutch tooth to connect or separate with the first transmission assembly and drive the knob assembly to mesh or separate with the meshing tooth, thereby facilitating the conversion of four working states of the electric hammer.

[0004] However, the above-mentioned electric hammer clutch device cannot regulate the impact force of the electric hammer, so that when drilling soft wood or plastic, the excessive impact force may cause the material surface to crack, and when drilling hard materials such as concrete, the insufficient impact force will result in low drilling efficiency. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing an electric hammer device capable of adjusting impact force to solve the problem of being unable to regulate the impact force of the electric hammer as mentioned in the background art.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0007] An electric hammer device capable of adjusting impact force, comprising: a motor installed in the electric hammer, a first gear fixedly installed at one end of the output shaft of the motor, the first gear meshing with a second gear, the second gear being rotatably installed in the housing of the electric hammer, a third gear fixedly installed at one end of a rotating rod, the third gear meshing with a fourth gear, the fourth gear being rotatably installed in the electric hammer, a piston column slidingly installed in the fourth gear, and an impact force regulating mechanism rotatably installed between the rotating rod and the piston column.

[0008] Preferably, a chuck is fixedly installed at one end of the piston rod, and a drill bit is inserted into the chuck.

[0009] Preferably, the impact force control mechanism includes a ball bearing and two sets of turntables. The inner ring of the ball bearing is fixedly installed on the outer surface of the rotating rod. A connecting plate is fixedly installed on the upper end of the outer surface of the outer ring of the ball bearing. A turntable is slidably installed inside the connecting plate. The other set of turntables is rotatably installed inside the piston column.

[0010] Preferably, a threaded rod is threaded between the two sets of turntables, and a hexagonal nut is fixedly installed on the outer surface of the middle section of the threaded rod.

[0011] Preferably, the threaded rods installed in the two sets of turntables are in a forward and reverse orientation, respectively.

[0012] Preferably, the ball bearing mounted on the outer surface of the rotating rod is inclined at 30°.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. Through the design of the motor, first gear, second gear, rotating rod, third gear, fourth gear, piston rod, and impact force control mechanism, during the drilling operation, the motor in the electric hammer is started to drive the first gear to mesh with the second gear. The rotating second gear drives the third gear at one end of the rotating rod to mesh with the fourth gear, causing the fourth gear to rotate. This, in turn, causes the piston rod, which is internally slidingly mounted, to rotate. The piston rod then drives the drill bit in the chuck at the other end to rotate. As the rotating rod rotates, it also drives the impact force control mechanism on the outer surface to reciprocate, pushing and pulling the piston rod back and forth within the fourth gear. This allows the rotating piston rod to be impacted... The piston rod reciprocates, causing the drill bit inside the chuck to rotate and impact. The impact force control mechanism regulates the reciprocating stroke of the piston rod, thereby adjusting the impact force. This allows for precise control of the impact force by adjusting the piston rod's reciprocating stroke for different materials such as wood, metal, and concrete. When drilling wood, reducing the stroke lowers the impact force to prevent cracking or damage. Conversely, increasing the stroke enhances the impact force when drilling concrete, ensuring efficient drilling. Adjusting the impact force also reduces drill bit wobbling and deviation, resulting in more regular and accurate holes that meet construction precision requirements.

[0015] 2、Through the design of the ball bearing, the connecting plate, the threaded rod and the rotating disc, in the process of the rotating disc being driven to rotate, the inner ring of the ball bearing with the inclined outer surface is driven to rotate, the outer ring of the ball bearing is connected with the rotating disc through the connecting plate fixedly installed on the outer surface and slides, and the other rotating disc is rotatably installed in the piston column, so that the rotating disc can limit the rotation of the outer ring of the ball bearing, but the inner ring drives the ball to drive the outer ring and the connecting plate on the outer surface to reciprocatingly push and pull the rotating disc, so that the rotating disc drives the other rotating disc to reciprocatingly push and pull in the process of rotating in the piston column, when the pushing stroke of the piston column needs to be regulated, the worker can twist the hexagon nut to drive the threaded rod to screw into or out of the two rotating discs, when the threaded rod screws into the two rotating discs, the distance between the two rotating discs can be reduced, so that the rotating disc in the connecting plate can slide downward in the connecting plate, so that the pushing stroke of the rotating disc can be reduced, when the threaded rod screws out of the two rotating discs, the distance between the two rotating discs can be increased, so that the rotating disc in the connecting plate can slide upward in the connecting plate, so that the pushing stroke of the rotating disc can be increased, so that the worker can accurately control the distance between the two rotating discs by twisting the hexagon nut to drive the threaded rod to screw in or out, so as to accurately adjust the pushing stroke of the piston column, so as to accurately adjust the impact force according to the actual needs, and ensure that the drilling operation can be efficiently and high-quality completed on various materials such as wood and concrete. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a whole structure schematic view of the electric hammer device capable of adjusting impact force of the utility model.

[0017] Figure 2 It is a structure schematic view of the rotating rod of the utility model.

[0018] Figure 3 It is a structure schematic view of the impact force regulating mechanism of the utility model.

[0019] In the figure: 1, motor; 101, first gear; 102, second gear; 103, rotating rod; 104, third gear; 105, fourth gear; 106, chuck; 107, drill bit; 108, piston column; 2, impact force regulating mechanism; 201, ball bearing; 202, connecting plate; 203, hexagon nut; 204, threaded rod; 205, rotating disc. DETAILED DESCRIPTION

[0020] Clearly, the described embodiments are merely a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0021] As shown in Figures 1-2 The present embodiment provides an electric hammer device capable of adjusting impact force, comprising: a motor 1 installed in the electric hammer, a first gear 101 fixedly installed at one end of an output shaft of the motor 1, the first gear 101 engaged with a second gear 102, the second gear 102 rotatably installed in a housing of the electric hammer, a rotating rod 103 fixedly installed at one end of the second gear 102, a third gear 104 fixedly installed at one end of the rotating rod 103, the third gear 104 engaged with a fourth gear 105, the fourth gear 105 rotatably installed in the electric hammer, a piston column 108 slidably installed in the fourth gear 105, and an impact force adjusting mechanism 2 rotatably installed between the rotating rod 103 and the piston column 108.

[0022] One end of the piston column 108 is fixedly installed with a chuck 106, and a drill bit 107 is inserted and installed in the chuck 106.

[0023] By the design of the motor 1, the first gear 101, the second gear 102, the rotating rod 103, the third gear 104, the fourth gear 105, the piston column 108 and the impact force regulating mechanism 2, when the hole opening operation is performed, the motor 1 in the electric hammer can be started to drive the first gear 101 to mesh and drive the second gear 102, the rotating second gear 102 can drive the third gear 104 at one end of the rotating rod 103 to mesh and drive the fourth gear 105 to rotate, and then the fourth gear 105 can drive the internally slidingly installed piston column 108 to rotate, and then the piston column 108 can drive the drill bit 107 in the other end chuck 106 to rotate, and the rotating rod 103 is driven to rotate, which will drive the impact force regulating mechanism 2 on the outer surface to reciprocatingly push and pull the piston column 108 to reciprocate in the fourth gear 105, so that the rotating piston column 108 can be driven to reciprocate, and the piston column 108 can drive the drill bit 107 in the chuck 106 to rotate while performing the impact operation, and the impact force regulating mechanism 2 can regulate the reciprocating stroke of the piston column 108, so as to adjust the impact force, and the reciprocating stroke of the piston column 108 can be adjusted for different materials such as wood, metal, concrete and the like, so as to accurately control the impact force, when drilling wood, the stroke is reduced to reduce the impact force, and the wood is prevented from cracking or being damaged, when processing concrete, the stroke is increased to increase the impact force, and the efficient drilling is ensured, and by adjusting the impact force, the shaking and deviation of the drill bit 107 can be reduced, the drilled hole is more regular and accurate, and the accuracy requirement of construction is met.

[0024] As shown in Figure 3 The impact force regulating mechanism 2 includes a ball bearing 201 and two groups of rotating discs 205, the inner ring of the ball bearing 201 is fixedly installed at the outer surface of the rotating rod 103, the outer ring of the ball bearing 201 is fixedly installed with a connecting plate 202 at the outer surface of the upper end, the rotating disc 205 is slidingly installed in the connecting plate 202, and the other group of rotating discs 205 is rotatably installed in the piston column 108.

[0025] The threaded rod 204 is threadedly installed between the two groups of rotating discs 205, and the hexagonal nut 203 is fixedly installed on the outer surface of the middle segment of the threaded rod 204.

[0026] The threaded rod 204 threadedly installed in the two groups of rotating discs 205 is respectively in a forward direction and a reverse direction.

[0027] The ball bearing 201 installed on the outer surface of the rotating rod 103 is in a 30° inclination.

[0028] Through the design of the ball bearing 201, the connecting plate 202, the threaded rod 204 and the rotating disc 205, in the process of the rotating rod 103 being driven to rotate, the rotating rod 103 will drive the inner ring of the ball bearing 201 with an inclined outer surface to rotate, while the outer ring of the ball bearing 201 is connected with the rotating disc 205 through the connecting plate 202 fixedly installed on the outer surface to slide, and the other group of rotating discs 205 are rotatably installed in the piston column 108, so as to enable the rotating disc 205 to rotate and limit the outer ring of the ball bearing 201, but due to the transmission of the inner ring and the ball, the inner ring can drive the outer ring through the ball to drive the connecting plate 202 on the outer surface to reciprocatingly push and pull the rotating disc 205, so as to enable the rotating disc 205 to drive the other group of rotating discs 205 to reciprocatingly push and pull in the process of rotating in the piston column 108, and when the pushing stroke of the piston column 108 needs to be regulated, the worker can twist the hexagonal nut 203 to drive the threaded rod 204 to screw in or out of the two groups of rotating discs 205, when the threaded rod 204 screws into the two groups of rotating discs 205, the distance between the two groups of rotating discs 205 can be reduced, so that the rotating disc 205 in the connecting plate 202 can slide downward in the connecting plate 202, so that the pushing stroke of the rotating disc 205 can be reduced, when the threaded rod 204 screws out of the two groups of rotating discs 205, the distance between the two groups of rotating discs 205 can be increased, so that the rotating disc 205 in the connecting plate 202 can slide upward in the connecting plate 202, so that the pushing stroke of the rotating disc 205 can be increased, so that the worker can drive the threaded rod 204 to screw in or out by twisting the hexagonal nut 203, so as to accurately control the distance between the two groups of rotating discs 205, and accurately adjust the pushing stroke of the piston column 108, so as to accurately adjust the impact force according to the actual needs of the operator, so as to efficiently and high-quality complete the drilling operation on various materials such as wood, concrete and the like.

[0029] According to the above technical scheme, the working steps of the present scheme are summarized and combed: when the hole opening operation is performed, the motor 1 in the electric hammer can be started to drive the first gear 101 to mesh and transmit the second gear 102, and the rotating second gear 102 can drive the third gear 104 at one end of the rotating rod 103 to mesh and transmit the fourth gear 105 to rotate, thereby enabling the fourth gear 105 to drive the piston column 108 slidingly installed inside to rotate, and thereby enabling the piston column 108 to drive the drill bit 107 in the other end chuck 106 to rotate, and in the process of being driven to rotate, the rotating rod 103 will drive the inner ring of the outer surface inclined ball bearing 201 to rotate, and the outer ring of the ball bearing 201 is slidingly connected with the rotating disc 205 through the outer surface fixedly installed connecting plate 202, and the other group of rotating disc 205 is rotatably installed in the piston column 108, thereby enabling the rotating disc 205 to rotate and limit the outer ring of the ball bearing 201, but due to the transmission of the inner ring and the ball, the inner ring can drive the outer ring through the ball to drive the outer surface connecting plate 202 to reciprocatingly push and pull the rotating disc 205, thereby enabling the rotating disc 205 to drive the other group of rotating disc 205 to reciprocatingly push and pull in the process of rotating in the piston column 108, thereby enabling the rotating piston column 108 to be driven to reciprocate, and thereby enabling the piston column 108 to drive the drill bit 107 in the chuck 106 to rotate while being able to perform impact operation, and when the pushing stroke of the piston column 108 needs to be regulated, the worker can twist the hexagon nut 203 to drive the threaded rod 204 to screw in or out of the two groups of rotating disc 205, and when the threaded rod 204 screws into the two groups of rotating disc 205, the distance between the two groups of rotating disc 205 can be reduced, thereby enabling the rotating disc 205 in the connecting plate 202 to slide downward in the connecting plate 202, thereby enabling the rotating disc 205 to reduce the pushing stroke when being pushed, and when the threaded rod 204 is screwed out of the two groups of rotating disc 205, the distance between the two groups of rotating disc 205 can be increased, thereby enabling the rotating disc 205 in the connecting plate 202 to slide upward in the connecting plate 202, thereby enabling the rotating disc 205 to increase the pushing stroke when being pushed, and precise adjustment of the pushing stroke of the piston column 108 enables the operator to accurately adjust the impact force according to actual needs, and ensures that the drilling operation can be efficiently and high-quality completed on various materials.

[0030] In summary: the pushing stroke of the piston column 108 can be regulated, thereby enabling the impact force to be adjusted, and the operator can accurately adjust the impact force according to actual needs to ensure that the drilling operation can be efficiently and high-quality completed on various materials.

[0031] The parts not involved in the utility model are the same as the prior art or can be realized by using the prior art. Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. An electric hammer device capable of adjusting impact force, characterized in that, include: The motor (1) installed inside the electric hammer has a first gear (101) fixedly installed at one end of its output shaft. The first gear (101) meshes with a second gear (102). The second gear (102) is rotatably installed inside the electric hammer's housing. A rotating rod (103) is fixedly installed at one end of the second gear (102). A third gear (104) is fixedly installed at one end of the rotating rod (103). The third gear (104) meshes with a fourth gear (105). The fourth gear (105) is rotatably installed inside the electric hammer. A piston column (108) is slidably installed inside the fourth gear (105). An impact force adjustment mechanism (2) is rotatably installed between the rotating rod (103) and the piston column (108).

2. The electric hammer device capable of adjusting impact force according to claim 1, characterized in that: A chuck (106) is fixedly installed at one end of the piston rod (108), and a drill bit (107) is inserted into the chuck (106).

3. The electric hammer device capable of adjusting impact force according to claim 1, characterized in that: The impact force control mechanism (2) includes a ball bearing (201) and two sets of turntables (205). The inner ring of the ball bearing (201) is fixedly installed on the outer surface of the rotating rod (103). A connecting plate (202) is fixedly installed on the upper end of the outer ring of the ball bearing (201). A turntable (205) is slidably installed in the connecting plate (202). Another set of turntables (205) is rotatably installed in the piston column (108).

4. The electric hammer device capable of adjusting impact force according to claim 3, characterized in that: A threaded rod (204) is threaded between the two sets of turntables (205), and a hexagonal nut (203) is fixedly installed on the outer surface of the middle section of the threaded rod (204).

5. The electric hammer device capable of adjusting impact force according to claim 4, characterized in that: The threaded rods (204) installed in the two sets of turntables (205) are in the forward and reverse directions, respectively.

6. An electric hammer device capable of adjusting impact force according to any one of claims 3-5, characterized in that: The ball bearing (201) mounted on the outer surface of the rotating rod (103) is inclined at 30°.

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