CN215824976U - Battery-driven small planetary gear grinding machine - Google Patents

Abstract

The utility model discloses a battery-driven small planetary gear grinding machine which comprises a machine frame group, wherein the back of the machine frame group is provided with a machine frame, the bottom end of the machine frame is provided with wheels and a gear box, the bottom end of the gear box is provided with a coupler and a grinding disc, and an upper-layer large gear, a lower-layer intermediate gear shaft, a planetary gear retainer, a backstop gasket, a lock nut and an end cover are fixedly arranged in the gear box. The device has simple structure and novel design, adopts an improved planetary gear structure, increases the output torque force through multi-stage speed reduction, can easily cut the ground when the machine runs, reaches enough depth and has flat ground without obvious knife lines; the three autorotation grinding discs grind the ground, and the gear box rotates to drive the autorotation grinding discs and the tool bit to revolve, so that the grinding diameter is increased, and the grinding efficiency is high; adopt large capacity lithium cell drive, avoid cable length restriction when inserting the electricity when making the machine construction, potential safety hazard when reducing wet-milling or ground a large amount of ponding has effectively solved current majority problem simultaneously has higher practical value.

Description

Battery-driven small planetary gear grinding machine

Technical Field

The utility model relates to the technical field of grinding machines, in particular to a battery-driven small planetary gear grinding machine.

Background

The terrace grinder utilizes a motor to drive a machine head chassis to grind different grounds. This kind is small-size machine of grinding, mainly used wall sideline and corner grind the repairment. The same type of prior art typically employs a hand-held hand grinder or a plug-in belt drive configuration. The hand-held hand grinder is an angle grinder which is provided with a diamond tool bit and utilizes the diamond tool bit rotating at high speed to grind the ground. It features small size and light weight. But the grinding efficiency is low.

The belt type transmission structure grinding machine utilizes the belt wheel on the motor shaft to rotate at high speed and drives the whole set of machine heads to rotate through the belt, so that the grinding disc rotates to grind the ground. It features simple structure and low cost. But the grinding is easy to be uneven, the cutting depth of the cutter head is not enough, the grinding and connecting effect is not good, and the wall corner with large diameter of the disc is not ground to have too large corner; the plug-in work is needed, and the wire dragging is inconvenient. We have therefore developed this and have proposed a battery-powered small planetary gear grinding machine.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problems, the utility model provides the following technical scheme:

the utility model discloses a battery-driven small planetary gear grinding machine which comprises a machine frame set, wherein a machine frame is arranged on the back of the machine frame set, wheels and a gear box are installed at the bottom end of the machine frame, a coupler and a grinding disc are installed at the bottom end of the gear box, an upper-layer large gear, a lower-layer intermediate gear shaft, a planetary gear retainer, a retaining gasket, a locking nut and an end cover are fixedly installed in the gear box, a direct-current motor is fixedly installed at the top end of the gear box, a lithium battery and a battery fixing seat are fixedly installed in the middle of the machine frame, and a handrail and an electric box are fixedly installed at the top of the machine frame.

According to a preferable technical scheme of the utility model, the wheels are provided with rotating shafts and fixedly mounted on two sides of the bottom end of the rack set, the surfaces of the handrails are provided with rubber sleeves for protection and fixedly mounted on the top end of the rack, and the electrical box is provided with a shell for protection and is fixedly mounted on the back of the rack.

As a preferred technical scheme of the utility model, the battery fixing seat is fixedly arranged in the middle of the front side of the rack, the lithium battery is provided with a shell which is fixedly embedded in the battery fixing seat, the lithium battery is provided with a circuit which is electrically connected with the electric box and the direct current motor, and the direct current motor is in transmission connection with the gear box.

As a preferred technical scheme of the utility model, the bottom of the front side of the rack is provided with a metal support, the gear box is fixedly connected with the rack through the metal support, the direct current motor is provided with an auxiliary support which is fixedly and vertically arranged at the top end of the gear box, and the surface of the direct current motor is protected by a metal shell.

As a preferred technical scheme of the utility model, the coupling is provided with three groups which are fixedly arranged at the bottom end of the gear box and are in meshed connection with the gear group in the gear box, the grinding disc is provided with a plurality of cutter heads, and the grinding disc is provided with components which are in meshed connection with the coupling.

As a preferred technical scheme of the utility model, an upper layer of gear rotating structure cavity and a lower layer of gear rotating structure cavity are arranged in the gear box, the planetary gear retainer is fixedly arranged between the upper layer and the lower layer to separate the cavities, the fixed upper layer large gear is arranged on the upper layer in the gear box, the lower layer intermediate gear shaft is vertically and fixedly arranged in the center in the gear box, and a plurality of gear groups and bearings are arranged in the gear box and are in transmission connection with the fixed upper layer large gear and the lower layer intermediate gear shaft to form a multi-stage speed reduction structure.

As a preferred technical scheme of the utility model, a grinding disc shaft fixing coupler is arranged in the gear box and is in transmission connection, a backstop gasket is arranged on the grinding disc shaft, two ends of the backstop gasket are fixed by locking nuts, and the connection part of the bottom end of the gear box and the coupler is protected by an end cover.

The utility model has the beneficial effects that: the battery-driven small planetary gear grinding machine adopts an improved planetary gear structure, the output torque is increased through multi-stage speed reduction, the ground can be easily cut when the machine runs, the ground reaches a sufficient depth, and the ground is flat and has no obvious knife lines; the three autorotation grinding discs grind the ground, and the gear box rotates to drive the autorotation grinding discs and the tool bit to revolve, so that the grinding diameter is increased, and the grinding efficiency is high; the high-capacity lithium battery is adopted for driving, so that the cable length limitation during power plug is avoided during machine construction, and meanwhile, the potential safety hazard during wet grinding or large-amount water accumulation on the ground is reduced; simple structure is reasonable, and convenient to use has effectively solved current majority problem, has higher practical value.

Drawings

Fig. 1 is a perspective view of a battery-driven small planetary gear grinder of the present invention;

FIG. 2 is an enlarged view of the gear box of a battery-driven small planetary gear grinder of the present invention;

fig. 3 is an exploded view of a frame set structure of a battery-driven small planetary gear grinding machine according to the present invention;

FIG. 4 is a sectional view showing the internal structure of a gear case of a small planetary gear grinding machine driven by a battery according to the present invention;

FIG. 5 is an exploded view of the internal components of the gear box of a battery-powered small planetary grinding machine of the present invention;

fig. 6 is a machine circuit diagram of a battery-driven small planetary gear grinder of the present invention.

In the figure: 1. a gear case; 2. a frame set; 3. a handrail; 4. a direct current motor; 5. a lithium battery; 6. a battery holder; 7. a frame; 8. a wheel; 9. an electrical box; 10. a coupling; 11. a grinding disc; 12. fixing an upper layer gearwheel; 13. a lower intermediate gear shaft; 14. a planetary gear holder; 15. a backstop pad; 16. a lock nut; 17. and (4) end covers.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.

Example (b): as shown in fig. 1-6, the small-sized planetary gear grinding machine driven by a battery of the present invention comprises a frame set 2, a frame 7 is arranged on the back of the frame set 2, wheels 8 and a gear box 1 are mounted at the bottom end of the frame 7, a coupling 10 and a grinding disc 11 are mounted at the bottom end of the gear box 1, a fixed upper-layer large gear 12, a lower-layer intermediate gear shaft 13, a planetary gear holder 14, a backstop gasket 15, a lock nut 16 and an end cover 17 are mounted inside the gear box 1, a dc motor 4 is fixedly mounted at the top end of the gear box 1, a lithium battery 5 and a battery holder 6 are fixedly mounted in the middle of the frame 7, and a handrail 3 and an electric box 9 are fixedly mounted at the top of the frame 7.

Wherein, wheel 8 is equipped with pivot fixed mounting in frame group 2 bottom both sides, and 3 surfaces on the handrail are equipped with the gum cover protection, and fixed mounting is on 7 tops of frame, and electric box 9 is equipped with shell protection and fixed mounting in 7 backs of frame.

Wherein, 6 fixed mounting of battery fixing base are in the middle part of 7 openly in the frame, and lithium cell 5 is equipped with that the shell is fixed to be inlayed and establish and install in battery fixing base 6, and lithium cell 5 is equipped with electric box 9 of circuit electric connection and DC motor 4, and DC motor 4 is connected with the transmission of gear box 1.

Wherein, frame 7 openly bottom is equipped with the metal support, and gear box 1 passes through metal support and frame 7 fixed connection, and direct current motor 4 is equipped with the fixed erection of auxiliary stand and installs on gear box 1 top, and direct current motor 4 surface is equipped with the metal casing protection.

Wherein, the shaft coupling 10 is equipped with three group fixed mounting in 1 bottom of gear box, and with 1 inside tooth group meshing connection of gear box, and mill 11 is equipped with a plurality of tool bits and constitutes, and is equipped with the subassembly and is connected with shaft coupling 10 meshing.

Wherein, two-layer gear revolution mechanic cavity about gear box 1 is inside to be equipped with, and planetary gear holder 14 fixed mounting separates the cavity between upper and lower layer, and fixed upper gear wheel 12 is installed in the inside upper strata of gear box 1, and lower floor's intermediate gear axle 13 erects fixed mounting in the inside center of gear box 1, and gear box 1 is inside to be equipped with a plurality of tooth groups and bearing transmission and to connect fixed upper gear wheel 12 and lower floor's intermediate gear axle 13 and constitute multistage speed reduction structure.

Wherein, the inside fixed shaft coupling 10 transmission of abrasive disc axle that is equipped with of gear box 1 is connected, and the epaxial stopping gasket 15 of installing of abrasive disc, and its both ends are equipped with lock nut 16 and fix, and gear box 1 bottom all is equipped with end cover 17 protection with the shaft coupling 10 junction.

The working principle is as follows: the gear box group 1 is connected with the gear box 1 through a direct current motor 4 to drive a middle driving gear in the gear box body to rotate, the driving gear drives a side shaft driven gear through an idler gear, and the driven gear drives a grinding disc 11 and a tool bit on the side shaft to rotate to form relative motion with the ground, so that the ground is cut; meanwhile, the driving gear drives a pinion on the upper layer of the gear box 1 through an idler wheel, so that the pinion rotates along a fixed large gear to drive the gear box 1 to integrally rotate, the rotation direction is opposite to the rotation direction of the grinding disc, the gear box 1 rotates to drive the self-transmission grinding disc 11 to revolve along a great circle, the rack group 2 is connected with the electric box 9 and the gear box 1 group, and the rack group is provided with a control handrail 3 to facilitate the control of a person;

the internal structure of the gear box 1 is completely new, 4-level speed reduction is realized in a tiny space, and the speed ratio of the grinding disc 11 and the gear box 1 is enlarged as much as possible. The larger the speed ratio of the gear box 1 is, the larger the torque force is, the longer the grinding time of the grinding disc 11 at the same ground position is, the rotation of the gear box 1 is carried out, the grinding depth can be increased, the grinding surface is fine and smooth, the knife lines are not easy to appear, and the grinding effect is better. The grinding disc is small in size and can be ground to the boundary limit of the obstacle more easily;

the novel gear box 1 has more gear reduction structures, and is convenient to assemble by adopting some novel structures. And a grinding disc shaft of the upper gear mechanism is provided with a backstop gasket 15, and then 2 round nuts are arranged for locking 16. After the lower layer structure and the upper layer structure are installed, the gear box 1 is reversely provided with a locking nut 16 for limiting, and after locking, the end cover 17 is used for locking and sealing. The mechanism does not need to consider the error of installation height, does not need to add a clearance piece for adjustment, only needs to screw the lock nut 16, and can only dismantle the bottom end cover 17 if the tightness of the lock nut needs to be adjusted at the later stage. The structures greatly reduce the installation difficulty and improve the installation efficiency;

the large-capacity lithium battery 5 is adopted for driving, and the number of electric parts is reduced by the structure. The problem of drag line when grinding the construction is solved, reduced the potential safety hazard of construction under the condition of humidity and wet grinding.

Finally, it should be noted that: in the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the utility model. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (7)

1. The utility model provides a battery-driven small-size planetary gear grinds machine, includes frame group (2), its characterized in that, frame group (2) back is equipped with frame (7), wheel (8) and gear box (1) are installed to frame (7) bottom, shaft coupling (10) and mill (11) are installed to gear box (1) bottom, gear box (1) internally mounted has fixed upper gear wheel (12), lower floor intermediate gear axle (13), planetary gear holder (14), stopping gasket (15), lock nut (16) and end cover (17), gear box (1) top fixed mounting has direct current motor (4), frame (7) middle part fixed mounting has lithium cell (5) and battery fixing base (6), frame (7) top fixed mounting has handrail (3) and electric box (9).

2. A small-sized battery-driven planetary gear grinding machine according to claim 1, characterized in that the wheels (8) are provided with rotating shafts and fixedly mounted at the two sides of the bottom end of the frame set (2), the surface of the handrail (3) is provided with rubber sleeve protection and fixedly mounted at the top end of the frame (7), and the electrical box (9) is provided with shell protection and fixedly mounted at the back of the frame (7).

3. A small-sized battery-driven planetary gear grinding machine according to claim 1, characterized in that the battery holder (6) is fixedly mounted in the middle of the front surface of the frame (7), and the lithium battery (5) is provided with a housing fixedly embedded in the battery holder (6), the lithium battery (5) is provided with a line electrically connecting the electric box (9) and the direct current motor (4), and the direct current motor (4) is in transmission connection with the gear box (1).

4. A small-sized battery-driven planetary gear grinding machine according to claim 1, characterized in that the bottom of the front surface of the frame (7) is provided with a metal bracket, the gear box (1) is fixedly connected with the frame (7) through the metal bracket, the direct current motor (4) is provided with an auxiliary bracket and fixedly and vertically arranged at the top end of the gear box (1), and the surface of the direct current motor (4) is protected by a metal shell.

5. A battery operated small planetary gear grinding machine according to claim 1, characterized in that the coupling (10) is provided with three sets of teeth fixedly mounted on the bottom of the gear box (1) and engaged with the sets of teeth inside the gear box (1), and the grinding disc (11) is provided with a plurality of cutter heads and is provided with components engaged with the coupling (10).

6. The small-sized battery-driven planetary gear grinding machine according to claim 1, wherein the gear box (1) is internally provided with an upper gear rotating structure chamber and a lower gear rotating structure chamber, the planetary gear holder (14) is fixedly installed between the upper layer and the lower layer to separate the chambers, the fixed upper gear wheel (12) is installed at the upper layer inside the gear box (1), the lower intermediate gear shaft (13) is vertically and fixedly installed at the center inside the gear box (1), and the gear box (1) is internally provided with a plurality of tooth groups and a plurality of bearing transmission connection fixed upper gear wheels (12) and lower intermediate gear shafts (13) to form a multi-stage speed reduction structure.

7. The small-sized battery-driven planetary gear grinding machine according to claim 1, characterized in that a grinding disc shaft fixing coupling (10) is arranged inside the gear box (1) and is in transmission connection with the grinding disc shaft, a retaining gasket (15) is arranged on the grinding disc shaft, locking nuts (16) are arranged at two ends of the grinding disc shaft for fixing, and an end cover (17) is arranged at the connection position of the bottom end of the gear box (1) and the coupling (10).

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