CN209491721U - A kind of impact electric hammer gear transmission structure - Google Patents

Abstract

The utility model provides a kind of impact electric hammer gear transmission structure, is related to hand-operated tools technical field.It includes that portion is equipped with the motor output shaft of motor output shaft tooth, first axle, first axle is socketed with T-shaped impact gear, bearing fixer and the Oscillating lever bearing in section, the horizontal part of bearing fixer is connected with thrust bearing, the vertical end surface of impact gear is adjacent to thrust bearing end face, motor output shaft tooth is engaged with impact gear, Oscillating lever bearing is connected with clutch, and clutch is connected with the second axis.The utility model solves the technical problem for the high installation maintenance inconvenience of power transmission arrangment complexity manufacturing cost for impacting electric hammer in the prior art.The utility model has the beneficial effect that simple and reasonable, and part is few, and manufacturing cost is low.Installation, easy to maintain, saving use cost.Part connection not only with rigidity but also had flexibility, and impact gear is avoided directly to be impacted, and extended impact electric hammer service life.It is small in size, it is applied widely.

Description

A kind of impact electric hammer gear transmission structure

Technical field

The utility model relates to hand-operated tools technical fields, are driven and tie more particularly, to a kind of impact electric hammer power gear Structure.

Background technique

Universal with building, fitting up, corresponding tool quality requirement also comes higher.Electric hammer can concrete, floor, Aperture on brick wall and stone material hard material.Electric hammer aperture on above-mentioned material is high-efficient, easy to use and flexible and by constructor The favor of member.Chinese patent Authorization Notice No. CN206393572U, authorized announcement date on August 11st, 2017, a kind of entitled " electricity The utility model of hammer ", discloses the variable speed drive of one of electric hammer.The axis center of bevel gear rotor and artificial force side To concentric or dry row；Rotor tooth primary transmission uses Bevel Gear Transmission, including integrated bevel gear and combination bevel gear, auger tooth Wheel is assemblied on eccentric shaft, and the primary transmission of eccentric shaft rotation is driven using bevel gear.Power transmission arrangment is the main of electric hammer Component, its aging effects the service life of electric hammer.The power transmission arrangment is not only complicated, installation, troublesome maintenance, and bores Cost of gear manufacture is also relatively high.

Utility model content

In order to which the high installation maintenance of power transmission arrangment complexity manufacturing cost for solving to impact electric hammer in the prior art is inconvenient The technical issues of, it is simple, convenient for installation and maintenance that the utility model provides a kind of structure, and impact electric hammer gear with long service life passes Dynamic structure.

The technical solution of the utility model is: a kind of impact electric hammer gear transmission structure, it includes motor output shaft, first Axis, first axle are socketed with impact gear, bearing fixer, Oscillating lever bearing, and bearing fixer section is T-shaped, bearing fixer Horizontal part is connected with thrust bearing, and impact teeth wheel cross section is T-shaped, and the vertical end surface and thrust bearing end face for impacting gear paste Tightly, motor output shaft end is equipped with motor output shaft tooth, and motor output shaft tooth is engaged with impact gear, Oscillating lever bearing one end and axis Hold that fixator is adjacent to, the other end is connected with clutch, clutch is connected with the second axis.Simple and reasonable, part is few, installation, Easy to maintain, manufacturing cost is low.It avoids impact gear from directly being impacted, extends impact electric hammer service life.

Preferably, the vertical component effect of impact gear is socketed with partition, partition both ends respectively with impact gear, bearing fixer End face be adjacent to；Slow down impact force, extends the service life of impact gear.

Preferably, motor output shaft outer surface is equipped with insulating layer；Not only rigid shock resistance had been increased, but also insulation meets and motor Cooperation.

Preferably, motor output shaft is socketed with impeller；It is cooling to reinforce motor.

Preferably, the second shaft end portion is equipped with the gib block of several protrusions, it is in spline shaft-like；Facilitate assembly and disassembly drill bit.

Compared with prior art, the utility model has the beneficial effects that simple and reasonable, part is few, and manufacturing cost is low. Installation, easy to maintain, saving use cost.Part connection not only with rigidity but also had flexibility, avoided impact gear by direct Impact extends impact electric hammer service life.It is small in size, it is applied widely.

Detailed description of the invention

Attached drawing 1 is the utility model section view.

In figure: 1- cabinet；2- motor output shaft；3- first axle；4- clutch；The second axis of 5-；21- motor output shaft tooth； 22- insulating layer；23- impeller；31- impacts gear；32- partition；33- bearing fixer；34- Oscillating lever bearing.

Specific embodiment

Below with reference to the embodiments and with reference to the accompanying drawing the technical solutions of the present invention will be further described.

Embodiment 1:

As shown in Figure 1, a kind of impact electric hammer gear transmission structure, it includes cabinet 1, motor output shaft 2, first axle 3.Electricity Machine output shaft 2 is multi-diameter shaft.2 end of motor output shaft is equipped with motor output shaft tooth 21.The tooth position of motor output shaft tooth 21 is in axis End was arranged around side wall one week.Motor output shaft 2 is connect by bearing with cabinet 1.2 outer surface of motor output shaft is equipped with insulation Layer 22.Insulating layer 22 is plastic construction, is coated on 2 side of motor output shaft.Motor output shaft 2 is connected with motor (in figure not Show).Motor output shaft 2 is socketed with impeller 23.Impeller 23 and motor output shaft 2 are fixed.Impeller 23 is located at motor and motor exports Between axis tooth 21.

First axle 3 is socketed with impact gear 31, bearing fixer 33, Oscillating lever bearing 34.Bearing fixer 33 is ladder circle Column, section are T-shaped.Bearing fixer 33 is equipped with bearing fixer connecting hole along axis.Bearing fixer connecting hole penetrates through axis Hold 33 end face of fixator.The horizontal part of bearing fixer 33 is connected with thrust bearing.Bearing fixer connecting hole is stepped hole.Axis It is large aperture that fixator connecting hole, which is held, close to large diameter cylinder one end.The outer ring of thrust bearing and bearing fixer connecting hole are big Diametric hole inner wall is fixed, and the inner ring and first axle 3 of thrust bearing are fixed.

Impact gear 31 is ladder circle column, and section is T-shaped, and large diameter cylinder is gear, and small-diameter circular cylinder is punching Hit the vertical component effect of gear 31.It impacts gear 31 and is equipped with impact pinion attachment holes.Impact pinion attachment holes perforation impact 31 end of gear Face.It impacts pinion attachment holes and first axle 3 is fixed.The vertical end surface of impact gear 31 is adjacent to thrust bearing end face.Impact The vertical component effect of gear 31 is socketed with partition 32.Partition 32 is in the form of annular discs, is equipped with partition connecting hole along central axes.Partition connecting hole passes through Logical 32 end face of partition.The vertical portion exterior surface of partition connecting hole and impact gear 31 is socketed.32 both ends of partition respectively with impact teeth The end face for taking turns 31, bearing fixer 33 is adjacent to.Motor output shaft tooth 21 is engaged with impact gear 31.The end of motor output shaft tooth 21 There are gaps face and 32 end face of partition plays buffer function to eliminate impact force.

34 inner ring of Oscillating lever bearing and first axle 3 are fixed.One end of Oscillating lever bearing 34 and 33 small diameter cylinders of bearing fixer End face is adjacent to, and the other end is connected with clutch 4.Clutch 4 is connected with the second axis 5.Second axis, 5 end is equipped with leading for several protrusions It is in spline shaft-like to item.The smooth end of second axis 5 is fixed with clutch.

Claims (5)

1. a kind of impact electric hammer gear transmission structure, it includes motor output shaft (2), first axle (3), it is characterised in that: described First axle (3) is socketed with impact gear (31), bearing fixer (33), Oscillating lever bearing (34), and the bearing fixer (33) is cut Face is T-shaped, and the horizontal part of bearing fixer (33) is connected with thrust bearing, and impact gear (31) section is T-shaped, impact teeth The vertical end surface of wheel (31) is adjacent to thrust bearing end face, and motor output shaft (2) end is equipped with motor output shaft tooth (21), motor output shaft tooth (21) is engaged with impact gear (31), described Oscillating lever bearing (34) one end and bearing fixer (33) Be adjacent to, the other end is connected with clutch (4), clutch (4) is connected with the second axis (5).

2. a kind of impact electric hammer gear transmission structure according to claim 1, it is characterised in that: the impact gear (31) Vertical component effect be socketed with partition (32), partition (32) both ends respectively with impact gear (31), bearing fixer (33) end face paste Tightly.

3. a kind of impact electric hammer gear transmission structure according to claim 1, it is characterised in that: the motor output shaft (2) outer surface is equipped with insulating layer (22).

4. a kind of impact electric hammer gear transmission structure according to claim 1 or 3, it is characterised in that: motor output shaft (2) It is socketed with impeller (23).

5. a kind of impact electric hammer gear transmission structure according to claim 1, it is characterised in that: the second axis (5) end Portion is equipped with the gib block of several protrusions, is in spline shaft-like.