CN210650548U

CN210650548U - Multi-mode switching hammer drill tool

Info

Publication number: CN210650548U
Application number: CN201921591537.4U
Authority: CN
Inventors: 吴世清; 张丕泉
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-09-24
Filing date: 2019-09-24
Publication date: 2020-06-02
Anticipated expiration: 2029-09-24

Abstract

A hammer drill tool with multi-mode switching comprises a shell, a drilling component and a hammering component which are matched with the shell, a gear shifting component and a driving motor, wherein the drilling component and the hammering component are matched with the driving motor through a transmission mechanism for transmission, the transmission mechanism comprises a transmission piece, a nested gear set, a drilling driven gear and a hammering driven gear, the lower bottom surface of the hammering driven gear is higher than the upper top surface of the drilling driven gear, the distance between the lower bottom surface of the hammering driven gear and the upper top surface of the drilling driven gear is less than the tooth width of the outer sleeve gear, the distance between the hammering driven gear and the drilling driven gear is less than the diameter of the top circle of the outer sleeve gear, the transmission part is driven by the control gear shifting component to stir the outer sleeve gear to slide up and down on the transmission main gear and to be meshed and matched with the drilling driven gear and/or the hammering driven gear, so that the transmission of the transmission main gear is realized, and the drilling component enters a working state. The design has the advantages of compact and light structure, convenient and stable switching and small vibration of working stability.

Description

Multi-mode switching hammer drill tool

Technical Field

The utility model relates to a hammer drill instrument field, especially a hammer drill instrument that multi-mode switches.

Background

With the continuous development of electromechanical devices, electric tools such as electric drills are increasingly used in civil engineering construction work due to their extremely high working efficiency and operating characteristics that are flexible in use. At present, in order to punch on the surface of concrete with higher strength or building materials with harder texture, an electric hammer or an electric drill is adopted to respectively operate more, tools need to be replaced midway, and the operation is troublesome and wastes precious working time. Present electric drill or electric hammer all carry out driving motor's transmission through the clutch, the great heavier of volume of clutch, and still need some other spare parts to cooperate, whole equipment is comparatively bulky, use the during operation inconvenient relatively, and because spare part is more relatively, it is also comparatively hard to switch at the switch switching in-process, the loss of spare part is also great, on the other hand, in some drilling equipment that have now, cooperate transmission and gear shift through adjusting motor position, this just causes switch switching in-process gear shift comparatively hard and because above-mentioned design causes the motor to be not hard up, the vibrations of whole drilling equipment are also great under high-speed moving state, it is difficult to use, control the performance relatively poor and can bring certain operational risk.

Disclosure of Invention

An object of the utility model is to provide a compact structure is light, switch convenient stable, job stabilization vibrations are little, can punch and can the multi-mode switching's of hammering hammer drill instrument again.

In order to solve the technical problem, the utility model discloses a following technical scheme: a hammer drill tool capable of realizing multi-mode switching comprises a shell, a drilling component and a hammering component which are matched with the shell, a gear shifting component arranged on the shell and a driving motor arranged in the shell, wherein the drilling component and the hammering component are in matched transmission with the driving motor through a transmission mechanism, the transmission mechanism comprises a transmission piece, a nested gear set, a drilling driven gear and a hammering driven gear, one end of the transmission piece is connected with the gear shifting component and is in matched transmission with the driving motor, the drilling driven gear and the hammering driven gear are arranged beside the nested gear set independently and are respectively connected and matched with the drilling component and the hammering component, the nested gear set comprises a column main gear, one end of the column main gear is in matched transmission with the driving motor, and a jacket gear, which is nested outside the column main gear and can slide up and down along a column shaft, is driven by the transmission piece, and the lower bottom surface position of the hammering driven gear is higher than the upper, the distance between the lower bottom surface of the hammering driven gear and the upper top surface of the drilling driven gear is smaller than the tooth width of the outer sleeve gear, when the drilling gear is shifted, the gear shifting assembly stirs the outer sleeve gear through the transmission piece to slide down to the lower section of the column type main gear and is meshed with the drilling driven gear independently, and the column type main gear drives the drilling assembly to realize drilling through the transmission of the outer sleeve gear; when the gear is hammered, the gear shifting component stirs the outer sleeve gear through the transmission part to slide upwards to the upper section of the column type main gear and is meshed with the hammering driven gear independently, and the column type main gear drives the hammering component to realize hammering work through the transmission of the outer sleeve gear; when the hammer drill is shifted, the gear shifting assembly stirs the outer sleeve gear through the transmission part to move to the middle section of the column type main gear, the outer sleeve gear is meshed with the drilling driven gear and the hammering driven gear, and the column type main gear drives the drilling assembly and the hammering assembly to work through the transmission of the outer sleeve gear respectively, so that drilling and hammering are achieved.

Further, the hammer assembly nests within the drilling assembly.

Furthermore, the transmission part clamps the upper surface and the lower surface of the outer sleeve gear and is provided with a matching opening matched with the column type main gear.

Furthermore, a sliding rod parallel to the column shaft of the column master gear is fixedly arranged at the top of the driving motor, a through hole is formed in the transmission piece, the sliding rod penetrates through the through hole and limits the transmission piece to move up and down on the sliding rod, and the transmission piece drives the outer sleeve gear to move up and down through the matching of the sliding rod and the through hole to switch the working state.

Further, the hammering subassembly includes eccentric wheelset, eccentric wheelset includes an eccentric wheel and eccentric transmission shaft, hammering driven gear and eccentric wheel fixed connection, eccentric wheel and eccentric transmission shaft cooperation work, the rotation drive hammering driven gear of overcoat gear rotates, and then the eccentric wheel drives eccentric transmission shaft and carries out the transmission and carry out hammering work.

The utility model has the advantages that: the utility model realizes the flexible switching of three working states by the engagement and the matching of the driving part driving outer sleeve gear controlled by the gear shifting component and the drilling driven gear and the hammering driven gear arranged at the side of the outer sleeve gear, the application of the matching of the gear and the gear replaces the application of the clutch in the prior art, the whole hammering tool has smaller and lighter volume, more stable connection and matching and less possibility of error, the control of the distance between the hammering driven gear and the drilling driven gear in the vertical direction effectively avoids the problem that the hammering driven gear, the drilling driven gear and the outer sleeve gear can not work in a matching way, ensures that the three parts can stably switch the three working states and have less possibility of failure under the condition of controlling the movement of a single part of the outer sleeve gear, and the design transmission and the switching mode of the driving outer sleeve gear driven by the driving part controlled by the gear shifting component are more direct, the switching is convenient easily, reduces among the prior art switching in-process common retardant sense, and whole transmission is simple, and necessary cooperation spare part is less, and the assembly is also simple, reduces substantially to assemble spare part back, and the light in weight and the manufacturing cost of whole hammer drill instrument are lower, on the other hand, the utility model discloses a slide from top to bottom through overcoat gear on the column type master gear and realize overcoat gear and drilling driven gear and hammering driven gear's cooperation transmission, driving motor's vibrations are compared in present most drilling equipment littleer, and the vibration noise of whole hammer drill instrument also diminishes by a wide margin, and the switching convenient operation of three kinds of working methods of whole hammer drill instrument, the operability is stronger, also compares some drilling equipment now, and operating personnel is safer in the use, be difficult to the emergence accident.

Drawings

Fig. 1 is a schematic view of the overall structure of a multi-mode switching hammer drill tool.

Fig. 2 is a schematic view of the overall structure of fig. 1 with a portion of the structure removed.

Fig. 3 is a schematic view of the mating of the nesting gear and the drilling driven gear of fig. 1 with a portion broken away.

Fig. 4 is a schematic view of the nesting gear and hammering driven gear in fig. 1 with part of the structure removed.

Fig. 5 is a schematic view of the nesting gear in cooperation with the drill driven gear and the hammer driven gear of fig. 1 with portions broken away.

The part names numbered in the drawings are as follows: 1. a transmission mechanism; 1.1, nesting gear sets; 1.11, a column type main gear; 1.12, sleeving a gear; 1.2, a transmission piece; 1.3, drilling a driven gear; 1.4, hammering the driven gear; 3. a drilling assembly; 4. a hammer assembly; 5. a shift assembly; 6. a drive motor; 6.1, a slide bar.

Detailed Description

In order to make the utility model realize the technical means, innovative features and functions are easy to understand, and the utility model is further explained below.

As shown in fig. 1, fig. 2, fig. 3, fig. 4 and fig. 5, the multi-mode switching hammer drill tool of the present invention comprises a housing, a drilling assembly 3 and a hammering assembly 4 cooperating with the housing, a gear shifting assembly 5 disposed on the housing, and a driving motor 6 disposed in the housing, wherein the drilling assembly 3 and the hammering assembly 4 cooperate with the driving motor 6 through a transmission mechanism 1, the transmission mechanism 1 comprises a transmission member 1.2 having one end cooperating with the gear shifting assembly 5, a nested gear set 1.1 having one end cooperating with the driving motor 6, a drilling driven gear 1.3, and a hammering driven gear 1.4, the drilling driven gear 1.3 and the hammering driven gear 1.4 are independently disposed beside the nested gear set 1.1 and respectively cooperating with the drilling assembly 3 and the hammering assembly 4, the nested gear set 1.1 comprises a column type main gear 1.11, one end of which cooperates with the driving motor 6 for transmission, The outer sleeve gear 1.12 is nested outside the column main gear 1.11 and driven by the transmission piece 1.2 to slide up and down along a column shaft, in the vertical direction, the lower bottom surface position of the hammering driven gear 1.4 is higher than the upper top surface position of the drilling driven gear 1.3, the distance between the lower bottom surface of the hammering driven gear 1.4 and the upper top surface of the drilling driven gear 1.3 is smaller than the tooth width of the outer sleeve gear 1.12, when a hole is drilled, the gear shifting assembly 5 drives the outer sleeve gear 1.12 to slide down to the lower section of the column main gear 1.11 through the transmission piece 1.2 and is meshed with the drilling driven gear 1.3 independently, and the column main gear 1.11 drives the drilling assembly 3 to drill the hole through the transmission of the outer sleeve gear 1.12; when the gear is hammered, the gear shifting component 5 pulls the outer sleeve gear 1.12 to slide up to the upper section of the column type main gear 1.11 through the transmission piece 1.2 and is meshed with the hammering driven gear 1.4 independently, and the column type main gear 1.11 drives the hammering component 4 to realize hammering work through the transmission of the outer sleeve gear 1.12; when the hammer drill is shifted, the gear shifting assembly 5 pulls the outer sleeve gear 1.12 through the transmission piece 1.2 to move to the middle section of the column type main gear 1.11, the outer sleeve gear 1.12 is meshed with the drilling driven gear 1.3 and the hammering driven gear 1.4, and the column type main gear 1.11 drives the drilling assembly 3 and the hammering assembly 4 to work through the transmission of the outer sleeve gear 1.12 respectively, so that drilling and hammering are achieved.

The utility model discloses in, for further volume that reduces the hammer drill instrument, still carried out nested formula design to hammering subassembly 4 and drilling subassembly 3, promptly hammering subassembly 4 nests in drilling subassembly 3, and this design makes the shell inner space that hammering subassembly 4 and drilling subassembly 3 occupy minimum, and the inside space of make full use of shell has promoted space utilization, has reduced the holistic volume of hammer drill instrument, makes it more portable, uses also more conveniently handy.

The utility model discloses in, in order not to influence overcoat gear 1.12's normal transmission, the design of surface can also make overcoat gear 1.12 carry out operating condition many times for a long time switch under driving medium 1.2's centre gripping steadily under the normal driven circumstances of overcoat gear 1.12 about having adopted driving medium 1.2 centre gripping overcoat gear 1.12, in addition, in order to carry out driving medium 1.2's transmission more steadily, the cooperation opening that sets up on the driving medium 1.2 makes driving medium 1.2 whole more steadily cooperate with column type master gear 1.11, the phenomenon that the displacement pine takes off can not take place after long-time work yet.

In order to ensure that the transmission member 1.2 can accurately move up and down and drive the outer sleeve gear 1.12 to slide up and down, a sliding rod 6.1 parallel to a column shaft of the column main gear 1.11 is fixedly arranged at the top of the driving motor 6, a through hole is formed in the transmission member 1.2, the sliding rod 6.1 penetrates through the through hole and limits the transmission member 1.2 to move up and down on the sliding rod 6.1, and the transmission member 1.2 drives the outer sleeve gear 1.12 to move up and down through the matching of the sliding rod 6.1 and the through hole so as to switch the working state.

The utility model discloses an embodiment, hammering subassembly 4 includes eccentric wheelset, eccentric wheelset includes an eccentric wheel and eccentric transmission shaft, hammering driven gear 1.4 and eccentric wheel fixed connection, eccentric wheel and eccentric transmission shaft cooperation work, overcoat gear 1.12's rotation drive hammering driven gear 1.4 rotates, and then the eccentric wheel drives eccentric transmission shaft and carries out the transmission and carry out hammering work, and eccentric wheelset carries out hammering subassembly 4's transmission and makes hammering driven gear 1.4's transmission ability go on more conveniently steadily, simplifies transmission structure and transmission mode, retrencies the structure of whole hammer drill instrument.

Although the present invention has been described with reference to the specific embodiments, it should be understood that various changes and modifications can be made by those skilled in the art without departing from the spirit and scope of the invention.

Claims

1. A multi-mode switching hammer drill tool, characterized by: including the shell, with shell complex drilling subassembly (3) and hammering subassembly (4), locate gear shift subassembly (5) on the shell, locate driving motor (6) in the shell, drilling subassembly (3) and hammering subassembly (4) are through a drive mechanism (1) and driving motor (6) cooperation transmission, drive mechanism (1) includes that one end is connected complex driving medium (1.2) with gear shift subassembly (5), one end is connected the driven nested gear train (1.1) of cooperation, drilling driven gear (1.3), hammering driven gear (1.4) with driving motor (6), drilling driven gear (1.3), hammering driven gear (1.4) mutually independent setting are at nested gear train (1.1) side and are connected the cooperation respectively with drilling subassembly (3), hammering subassembly (4), nested gear train (1.1) includes one end and driving motor (6) cooperation driven column type master gear (1.11), The outer sleeve gear (1.12) is nested outside the column main gear (1.11) and driven by the transmission piece (1.2) to slide up and down along a column shaft, in the vertical direction, the position of the lower bottom surface of the hammering driven gear (1.4) is higher than the position of the upper top surface of the drilling driven gear (1.3), the distance between the lower bottom surface of the hammering driven gear (1.4) and the upper top surface of the drilling driven gear (1.3) is smaller than the tooth width of the outer sleeve gear (1.12), when a hole is drilled, the gear shifting assembly (5) pulls the outer sleeve gear (1.12) through the transmission piece (1.2) to slide down to the lower section of the column main gear (1.11) and is meshed with the drilling driven gear (1.3) independently, and the column main gear (1.11) drives the drilling assembly (3) to realize the drilling work through the transmission of the outer sleeve gear (1.12; when the gear is hammered, the gear shifting assembly (5) pulls the outer sleeve gear (1.12) to slide up to the upper section of the column type main gear (1.11) through the transmission piece (1.2) and is separately meshed with the hammering driven gear (1.4), and the column type main gear (1.11) drives the hammering assembly (4) to realize hammering work through the transmission of the outer sleeve gear (1.12); when the hammer drill is shifted, the gear shifting assembly (5) pulls the outer sleeve gear (1.12) through the transmission piece (1.2) to move to the middle section of the column type main gear (1.11), the outer sleeve gear (1.12), the drilling driven gear (1.3) and the hammering driven gear (1.4) are meshed, and the column type main gear (1.11) drives the drilling assembly (3) and the hammering assembly (4) to work through the transmission of the outer sleeve gear (1.12) respectively, so that drilling and hammering are realized.

2. A multi-mode switching hammer drill tool according to claim 1, wherein: the hammering assembly (4) is nested in the drilling assembly (3).

3. A multi-mode switching hammer drill tool according to claim 1 or 2, wherein: the transmission piece (1.2) clamps the upper surface and the lower surface of the outer sleeve gear (1.12) and is provided with a matching opening matched with the column type main gear (1.11).

4. A multi-mode switching hammer drill tool according to claim 1 or 2, wherein: the top is fixed on driving motor (6) and is equipped with a slide bar (6.1) parallel with column master gear (1.11) column axis, be equipped with the through-hole on driving medium (1.2), slide bar (6.1) pass through-hole and spacing driving medium (1.2) in slide bar (6.1) up-and-down motion, driving medium (1.2) drive overcoat gear (1.12) up-and-down motion through the cooperation of slide bar (6.1) and through-hole and carry out operating condition's switching.

5. A multi-mode switching hammer drill tool according to claim 3, wherein: the top is fixed on driving motor (6) and is equipped with a slide bar (6.1) parallel with column master gear (1.11) column axis, be equipped with the through-hole on driving medium (1.2), slide bar (6.1) pass through-hole and spacing driving medium (1.2) in slide bar (6.1) up-and-down motion, driving medium (1.2) drive overcoat gear (1.12) up-and-down motion through the cooperation of slide bar (6.1) and through-hole and carry out operating condition's switching.

6. A multi-mode switching hammer drill tool according to claim 1, 2 or 5, wherein: hammering subassembly (4) includes eccentric wheelset, eccentric wheelset includes an eccentric wheel and eccentric transmission shaft, hammering driven gear (1.4) and eccentric wheel fixed connection, eccentric wheel and eccentric transmission shaft cooperation work, the rotation drive hammering driven gear (1.4) of overcoat gear (1.12) rotate, and then the eccentric wheel drives eccentric transmission shaft and carries out the transmission and hammering work.

7. A multi-mode switching hammer drill tool according to claim 3, wherein: hammering subassembly (4) includes eccentric wheelset, eccentric wheelset includes an eccentric wheel and eccentric transmission shaft, hammering driven gear (1.4) and eccentric wheel fixed connection, eccentric wheel and eccentric transmission shaft cooperation work, the rotation drive hammering driven gear (1.4) of overcoat gear (1.12) rotate, and then the eccentric wheel drives eccentric transmission shaft and carries out the transmission and hammering work.

8. A multi-mode switching hammer drill tool according to claim 4, wherein: hammering subassembly (4) includes eccentric wheelset, eccentric wheelset includes an eccentric wheel and eccentric transmission shaft, hammering driven gear (1.4) and eccentric wheel fixed connection, eccentric wheel and eccentric transmission shaft cooperation work, the rotation drive hammering driven gear (1.4) of overcoat gear (1.12) rotate, and then the eccentric wheel drives eccentric transmission shaft and carries out the transmission and hammering work.