CN209022687U - Power-driven trundle - Google Patents

Abstract

The utility model discloses a kind of Power-driven trundles, are packed into motor wherein to drive castor, to provide the excellent mobility of mobile device.A kind of Power-driven trundle, including lid, lid include left main body and right main body, and a left side has first shaft hole, and right main body has the second axis hole；The wheel being connected on the outside of lid；Erection bolt is accordingly screwed into the first bushing and the second bushing, and the first bushing and the second bushing are inserted correspondingly into the first shaft hole and the second axis hole of lid by bearing；Shaft portion is fixed to erection bolt for mounting bracket；Lid is provided with driving unit, and driving unit is for driving lid and wheel to rotate；Driving unit includes motor and the retarder that connect with electric-motor drive, and motor is fixed between the first support plate and the second support plate, and the second support plate is connected by bolt with third support plate, and third support plate is mutually fixed with the second bushing.

Description

Power-driven trundle

Technical field

The utility model belongs to castor technical field, concretely relates to a kind of motor-driven castor.

Background technique

In general, conveying castor is mainly used for moving conveyor, for example, hospital bed etc. in the lower part of various forms of transport It provides, such as the materials vehicle for transporting cargo.

Since traditional conveying castor is operated by simple rolling movement, this is needed to apply external force and pushed or It pulls, the elderly, which uses, has certain limitation.

Summary of the invention

The object of the present invention is to provide a kind of Power-driven trundles, are packed into motor wherein to drive castor, to provide shifting The excellent mobility of dynamic device.

Especially since the motor in castor be modular as driving unit, can simple mode assemble, because This assembling productivity is excellent.

In order to solve the above technical problems, purpose of the utility model is realized as follows:

A kind of Power-driven trundle, including lid, lid include left main body and right main body, and a left side has first shaft hole, right main body tool There is the second axis hole；

The wheel being connected on the outside of lid；

Erection bolt is accordingly screwed into the first bushing and the second bushing, and the first bushing and the second bushing are corresponding by bearing Ground is inserted into the first shaft hole and the second axis hole of lid；

Shaft portion is fixed to erection bolt for mounting bracket；

Lid is provided with driving unit, and driving unit is for driving lid and wheel to rotate；

Driving unit includes motor and the retarder that connect with electric-motor drive, motor be fixed on the first support plate and Between second support plate, the second support plate is connected by bolt with third support plate, and third support plate is mutually solid with the second bushing It is fixed.

Preferred embodiment on the basis of above scheme and as above scheme: second bushing includes external bushing and tool There is the neck bush of step, neck bush is inserted in the assembly hole of third support plate, and external bushing insertion neck bush is simultaneously fixedly connected, outer lining Set is connected for an erection bolt.

Preferred embodiment on the basis of above scheme and as above scheme: convex is equipped on the right side of motor It rises, the locating slot being inserted into for positioning protrusion is equipped in third support plate.

Compared with the prior art, the utility model has prominent and beneficial technical effects that:

The Power-driven trundle of the utility model, since motor is incorporated in castor, via motor and retarder with low speed Driving has superior travelling performance.Especially since the motor in castor as driving unit and is passed through by module It assembles motor in a simple manner and manufactures, therefore keep assembling productivity excellent.

Detailed description of the invention

Fig. 1 is the stereoscopic figure of the transfer castor of the utility model.

Fig. 2 is the assembling structure schematic diagram of the utility model.

Fig. 3 is the assembling structure schematic diagram of the utility model.

Fig. 4 is the overall package cross-sectional view of the utility model.

Fig. 5 is the installation diagram of the utility model.

Fig. 6 is the part-structure figure of the utility model.

Fig. 7 is the part-structure figure of the utility model.

Fig. 8 is the part-structure installation diagram of the driving unit of the utility model.

Fig. 9 is the motor of the utility model and the installation diagram of third bushing.

Specific embodiment

To keep the purposes, technical schemes and advantages of the application clearer, below in conjunction with the attached drawing in embodiment, to reality The technical solution applied in example is clearly and completely described, it is clear that described embodiment is only that the application a part is implemented Example, rather than whole embodiments.Based on the embodiment provided, those of ordinary skill in the art are not before making creative work Every other embodiment obtained is put, shall fall in the protection scope of this application.

In the description of the present application, it is to be understood that the orientation or positional relationship of the instructions such as term " on ", "lower" is base In orientation or positional relationship shown in the drawings, it is merely for convenience of description the application and simplifies description, rather than indication or suggestion Signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as to this The limitation of application.

In the description of the present application, term " first ", " second " etc. are used for description purposes only, and should not be understood as instruction or It implies relative importance or implicitly indicates the quantity of indicated technical characteristic.

As shown in Figure 1 to 9, motored transfer castor 100 of the invention includes lid 10, wheel 20, shaft portion 30 With drive part 50.

Lid 10 is divided into left and right main body 11 and 12, and passes through the mutually assembling of bolt ground secured to one another.First shaft hole 11a and Two axis hole 12a are formed in the two sides of lid 10, and driving unit 50 is assembled into lid 10.

Preferably, 20 shape of wheel is annular, is made of Tire rubber material, and has concaveconvex shape on its periphery, Play raising frictional force.

Axle portion 30 is configured to axially be assembled into first shaft hole 11a and the second axis hole 12a at the center of the two sides of lid 10.

Specifically, shaft portion 30 includes the first bushing 31 and the second bushing 32, they are coaxially attached to by bearing 5 On the first shaft hole 11a of lid two sides and the second axis hole 12a, bolt 35 is installed and the two sides of mounting bracket 40 are arranged in 35', with It is engaged with conveying device.In installation bolt 35 and the connecting hole 43 that is formed in mounting leg 42 of 35' insertion and and mounting bracket 40 link together.

Driving unit 50 is assembled as the form of the component of cover inside, and one side is connected to the second bushing 32, another Side is connected to the inside of lid by retarder 60, to transmit the driving force of motor under deceleration regime, makes lid 10 and vehicle 20 rotation of wheel.

In this case, driving unit 50 by by the first, the second and third support plate 51,52 and 53 in left and right directions On be separated from each other and be bolted and assemble between the first and second support plates 51 and 52.Motor M and third support plate 53 and second bushing 32 fit together the rear portion to support motor.

Second bushing 32 includes neck bush 32-1, and neck bush 32-1 is out of, assembly hole 53a inside third support plate 53 Side is inwardly inserted into and is supported by step 32a.Bolt 35' is installed and forms hole 35'a, for being inserted into cable 2, with to motor With the transmission data being configured.

At least two positioning protrusion 57 are formed on the outside of motor M of driving unit 50, and positioning protrusion 57 is set It sets on the second bushing 32, the second bushing 32 contacts the outside of motor M.Second bushing 32 is equipped with locating slot 32b for convex 57 insertions are played, so that the second bushing 32 positions motor M.

Retarder 60 be used as known tooth difference speed reducer, tooth difference speed reducer include be connected to motor drive shaft bias it is convex Part 61, the Cycloidal Wheel 62 being connected on the outside of eccentric cam portion are taken turns, through-hole 62b is formed in the coplanar position of circumferential direction of Cycloidal Wheel 62 It sets, through-hole 62b is formed in through-hole 62a, and ring gear 63 is engaged with gear parts 62a, to reduce the speed rotation of lid 10 Turn.

Tooth difference speed reducer 60 is configured to by with 63 meshed gears part 62a's and 63a of Cycloidal Wheel 62 and ring gear Gear subtractive speed.

Appended drawing reference 70,70 is indicated for keeping support plate spacer separated from each other, and 75 indicate fixing bolt.

Hereinafter, operation and principle of the invention will be described.

In the present invention, driving unit 50 is assembled in lid 10, and driving unit 50 is assembled with modular form.In other words It says, driving unit 50 includes left and right bolted the first, the second and third support plate 51,52 and 53, and motor M is assembled in the One and second between support plate 51,52, and the second bushing 32 for being used to support motor rear portion is assembled into third support plate 53.

Second bushing 32 includes the neck bush 32-1 being inserted into from the inside of the assembly hole 53a of third support plate 53, by step 32a support, neck bush are connected with external bushing.It is formed in the positioning convex platform 57 on the outside of motor M to be inserted into locating slot 32b, lead to It crosses insertion locating slot 32b and is assembled to predetermined position.It is assembled into the erection bolt 35' insertion cable 2 of external bushing 32-2, to pass through The hole 35'a of erection bolt is transmitted to motor and data.

Driving unit 50 is connected to lid 10 through tooth difference speed reducer 60, to slow down and transmit the rotary driving force of motor.

That is, driving unit 50 includes the annular being connected to outside Cycloidal Wheel and engaging with gear parts 62a Gear 63, while Cycloidal Wheel 62 being connected to the outside of the eccentric cam portion 61 of motor drive shaft.Also, it is fixed Pin 65 is screwed into the isosceles position of lid circumference, and the through-hole 62b of equiangular position is formed on the circumference of Cycloidal Wheel 62.

The left and right main body 11 and 12 of group capping 10, and wheel 20 is assembled into the outer of lid after built-in driving unit 50 Portion.

Dress bolt 35 and 35' are screwed to the first and second linings at the left and right side of lid 10 and erection bolt 35 and 35' On set 31 and 32.Mounting bracket 40 by insertion and with connecing in the supporting leg 42 and 42 for the mounting bracket 40 for being formed in fixed installation It closes the engagement of hole 43 and links together.

Therefore, it is completed.

Particularly, driving unit 50 is assembled and installs, so that the two sides of driving unit are poor by the second bushing 32 and tooth Retarder 60 is supported on the two sides of lid 10, and driving unit 50 is assembled into be located on same axis with axis 30.

Ring gear 63 is engaged with the part 62a of Cycloidal Wheel 62, and the circumferential equiangular position by being formed in Cycloidal Wheel 62 Through-hole 62b it is corresponding with the position on lid circumference, by pin 65 be inserted into tooth difference speed reducer 60 through-hole 62b, to connect left main body 11 and Cycloidal Wheel 62, rotate it together with wheel 20, lid 10.

That is, by driving the motor M being built in lid 10, the wheel 20 outside lid 10 and lid is driven It is dynamic to be rotated with reduced speed.

Further, since the structure that there are the driving unit 50 in lid 10 two sides to be pivotally supported, therefore rotary driving force It is smoothly transmitted to lid and wheel, while preventing the eccentric swing of motor and motor reel.

Therefore, according to the present invention, since the motor in castor is by motor drive, the motor in castor is by mould Block turns to driving unit, and the inside by the way that lid is simply assembled manufactures, so as to divide workpiece and assemble production Rate is excellent.Since the two sides of motor reduce and rotate under axis holding state, the rotation of center of gravity and motor is prevented The wobbler action at center, so that sports safety is excellent and improves the durable of the component of such as motor and motor reel Property.

Above-described embodiment is only the preferred embodiment of the utility model, not limits the protection model of the utility model according to this It encloses, therefore: the equivalence changes that all structures, shape, principle according to the utility model are done should all be covered by the protection of the utility model Within the scope of.

Claims (3)

1. a kind of Power-driven trundle, it is characterised in that: including lid, lid includes left main body and right main body, and a left side has first shaft hole, Right main body has the second axis hole；

The wheel being connected on the outside of lid；

Erection bolt is accordingly screwed into the first bushing and the second bushing, and the first bushing and the second bushing are accordingly inserted by bearing Enter in the first shaft hole and the second axis hole of lid；

Shaft portion is fixed to erection bolt for mounting bracket；

Lid is provided with driving unit, and driving unit is for driving lid and wheel to rotate；

Driving unit includes motor and the retarder that connect with electric-motor drive, and motor is fixed on the first support plate and second Between support plate, the second support plate is connected by bolt with third support plate, and third support plate is mutually fixed with the second bushing.

2. Power-driven trundle according to claim 1, it is characterised in that: second bushing include external bushing and have step Neck bush, neck bush is inserted in the assembly hole of third support plate, and external bushing insertion neck bush is simultaneously fixedly connected, and external bushing supplies one Erection bolt is connected.

3. Power-driven trundle according to claim 2, it is characterised in that: positioning protrusion is equipped on the right side of motor, the Three support plates are equipped with the locating slot being inserted into for positioning protrusion.