CN208675773U - Garden instrument - Google Patents

Abstract

The utility model provides a kind of garden instrument, including casing, is set in casing the motor with drive shaft, the speed changer being set to below motor and the Working mechanism being set to below speed changer.Casing is equipped with the partition wall of air inlet, the first ventilation opening and inside projection.Partition wall surrounds the accommodating space of receiving motor.The bottom of motor is equipped with first through hole.The upper end of motor is equipped with ventilation hole.The first air duct of connection air inlet and first through hole is formed in casing.First air duct, the inside of motor, ventilation hole and the first ventilation opening form the first wind path.Cooling down is carried out to motor in the inside of motor so set, realizing, provides more structurally sound guarantee for the continual and steady operating of motor.

Description

Garden instrument

Technical field

The utility model relates to machinery field more particularly to a kind of garden instruments.

Background technique

Grass-mowing machine is as a kind of garden instrument for arranging turf, the just favor by more and more users.Grass-mowing machine is general Including lengthwise extend extension rod, set on extension rod one end moving head, be set to extension rod on and with one spacing of moving head interval The motor of handle and driving moving head rotation from setting.Its working principle is that providing driving force by motor to drive and motor The transmission gear of connection rotates, and then rope rotation of beating the grass is driven to carry out operation of beating the grass.In the grass-mowing machine course of work, motor can be continuous Heat is generated, if the heat generated cannot timely shed, electrical fault is may cause and can not work normally grass-mowing machine.

In view of this, it is necessary to a kind of garden instrument is designed, to solve the above problems.

Utility model content

The purpose of this utility model is to provide the gardens of a kind of complete machine radiating efficiency with higher and job stability Tool.

To realize above-mentioned purpose of utility model, the utility model provides a kind of garden instrument, including casing, is set to institute It states the motor in casing with drive shaft, the speed changer being set to below the motor and is set to below the speed changer Working mechanism, the casing are equipped with the partition wall of air inlet, the first ventilation opening and inside projection；The partition wall surrounds receipts Hold the accommodating space of the motor；The bottom of the motor is equipped with first through hole, and the upper end of the motor is equipped with ventilation hole, described The first air duct for being connected to the air inlet and the first through hole is formed in casing；First air duct, the motor it is interior Portion, the ventilation hole and first ventilation opening form the first wind path.

The bottom of the casing is provided with the second ventilation opening, the partition wall as a further improvement of the utility model, Second including separating the first partition wall of the motor and the speed changer, the left and right sides for being divided into the motor separates It is respectively equipped on wall and third partition wall, second partition wall and the third partition wall and to be connected with the accommodating space Second opening and third opening, interior formed of the casing are connected to the air inlet, second opening, the accommodating space, institute State the second wind path of third opening and second ventilation opening.

The roof of the motor is equipped with the second through-hole as a further improvement of the utility model, goes back in the casing Form the third wind path for being sequentially communicated the air inlet, second through-hole and first ventilation opening.

First ventilation opening setting corresponding with the ventilation hole as a further improvement of the utility model,.

As a further improvement of the utility model, the motor include the motor blower fan being sheathed in the drive shaft, The rotor being set to below the motor blower fan and the motor stator component set on the rotor periphery, described One ventilation opening is arranged close to the motor blower fan.

Second opening is close to the motor turn with third opening as a further improvement of the utility model, It is sub to be arranged with the motor stator component.

The motor further includes housing as a further improvement of the utility model, and the ventilation hole is located at the housing On.

Second opening is opposite with the position that the third is open as a further improvement of the utility model,.

The operation structure is moving head as a further improvement of the utility model, and the moving head includes by described The moving head fan blade and rope of beating the grass, second ventilation opening of speed changer driving are set to the lower section of the moving head fan blade.

The beneficial effects of the utility model are: the garden instrument of the utility model by be arranged in casing the first air duct, First through hole, ventilation hole are set on motor and the first ventilation opening is set on casing, to realize in the inside of motor to electricity Machine carries out cooling down, provides more structurally sound guarantee for the continual and steady operating of motor, motor has obtained better cooling, just Bigger load and higher revolving speed can be born, so that the performance of complete machine obtains bigger promotion, it is easier to obtain client's Favor improves the market competitiveness；Meanwhile better cooling system can make the motor of lower cost play higher cost motor phase Same even better performance improves the price advantage and profit of product so that complete machine cost reduces.

Detailed description of the invention

Fig. 1 is that the utility model garden instrument eliminates the structural schematic diagram after handle.

Fig. 2 is the perspective view of Fig. 1.

Fig. 3 is the structural schematic diagram of an angle of casing in Fig. 2.

Fig. 4 is the structural schematic diagram of motor in Fig. 2.

Specific embodiment

In order to keep the purpose of this utility model, technical solution and advantage clearer, with reference to the accompanying drawing and it is embodied The utility model is described in detail in example.

Shown in please referring to Fig.1 to Fig.4, a kind of garden instrument 100, including casing 1, the motor being set in casing 12, by The speed changer 3 of the driving of motor 2 and the Working mechanism 4 that work is connect and driven by speed changer 3 with speed changer 3.

Motor 2 is that garden instrument 100 provides kinetic energy.In the present embodiment, motor 2 is brush direct current motor, including vertical To the drive shaft 21 of extension, the motor blower fan 22 being sheathed in drive shaft 21, the carbon brush 23, the electricity that are set to the top of motor blower fan 22 Machine rotor (not labeled), set on rotor periphery motor stator component 24 and cover at the housing 25 of 2 periphery of motor.It is fixed The extending direction of adopted drive shaft 21 is up and down direction, and rotor and motor stator component 24 are set under motor blower fan 22 Side, motor stator component 24 include several coils；Drive shaft 21 continues to extend downwardly from motor stator component 24.

Housing 25 includes covering at the upper encloser 251 of 22 periphery of motor blower fan and covering at 24 periphery of motor stator component Lower encioser 252.Upper encloser 251 includes being located on the side wall 2511 of 22 side of motor blower fan and connecting the roof of side wall 2511 (not Label), roof is equipped with several second through-hole (not labeled), and side wall 2511 is equipped with several ventilation holes 250；Lower encioser 252 Bottom wall 2521 is equipped with several first through hole 260.So set, air can be respectively by being arranged in the second of 2 roof of motor Through-hole and the first through hole 260 that 2 bottom of motor is arranged in enter inside motor 2, with to cooling down inside motor 2.

Shown in please refer to figs. 2 and 3, casing 1 includes the week of two side walls 40 being oppositely arranged and connection two side walls 40 Wall 50.Casing 1 be equipped with the air inlet 11 of portion one end disposed thereon, the partition wall formed from the inside projection of side wall 40 of casing 1, First ventilation opening 13 of the close setting of motor blower fan 22 and the second ventilation opening 14 for being set to 1 bottom of casing.

Partition wall includes the first partition wall 121 for separating motor 2 and speed changer 3 in the up-down direction, is divided into motor 2 The left and right sides the second partition wall 122 and third partition wall 123.First partition wall 121, the second partition wall 122 and third Partition wall 123 surrounds the accommodating space 30 of the receiving motor 2 an of upper opening jointly.The bottom wall 2521, second of motor 2 separates The first air duct 10 is formed between the peripheral wall 50 of wall 122, the first partition wall 121 and casing 1；Third partition wall 123 and casing 1 Peripheral wall 50 between be formed with the second air duct 20.

It is equipped between the bottom end of second partition wall 122 and the first partition wall 121 and is connected to the first air duct 10 and accommodating space 30 The first opening 51, the second partition wall 122 is equipped with second opening 52 of the first air duct 10 of connection with accommodating space 30, third point Next door 123 is equipped with the third opening 53 in connection accommodating space 30 and the second air duct 20.Second opening 52 and third opening 53 are equal It is arranged close to rotor and motor stator component 24.Preferably, the second opening 52 is set to same level with third opening 53 On face.

In this way, by the first opening 51, first through hole 260, be formed in casing 1 the first air duct 10 of connection, motor 2 it is interior The first wind path A1 in portion, ventilation hole 250 and the first ventilation opening 13；By the second opening 52, third opening 53, shape in casing 1 At have be sequentially communicated air inlet 11, second opening 52, accommodating space 30, third opening 53 and second ventilation opening 14 the second wind Road A2；By the second through-hole, ventilation hole 250, it is formed with that be sequentially communicated air inlet 11, the second through-hole and first logical in casing 1 The third wind path A3 in air port 13.In accommodating space 30, the first wind path A1 passes through the inside of motor 2, and the second wind path A2 is by electricity The outside of machine 2, the two are independent of each other.

In the present embodiment, operation structure is moving head 4, and moving head 4 includes the moving head fan blade driven by speed changer 3 It 41 and beats the grass rope 42.Second ventilation opening 14 is set to the lower section of moving head fan blade 41.So set, moving head fan blade 41 rotates through Casing 1 is discharged by the second ventilation opening 14 in hot-air in motor 2 by Cheng Zhong.

The working principle of garden instrument 100 is illustrated below: in 100 operation process of garden instrument, 2 not stopping pregnancy of motor Heat amount generates hot-air in casing 1, meanwhile, in 2 course of work of motor, 22 high speed rotation of motor blower fan leads to hot-air It crosses ventilation hole 250 to throw away with the first ventilation opening 13, that is, throw away by third wind path A3, to form low-pressure chamber in casing 1； Cold air outside casing 1 is by the first wind path A1 and third wind path A3 by being supplemented in inside motor 2 come, wherein third wind The carbon brush 23 of the cooling motor 2 of road A3, the coil of the cooling motor 2 of the first wind path A1, the hot-air of generation is immediately by motor blower fan 22 It is discharged through ventilation hole 250 and the first ventilation opening 13.Meanwhile motor 2 drives moving head 4 to rotate by speed changer 3, moving head fan blade 41 throw away hot-air from the second ventilation opening 14, and low-pressure area is formed in casing 1, and the cold air outside casing 1 passes through the second wind Road A2 comes in by the external complement of motor 2, cools down to the housing 25 of motor 2, the heat that the housing 25 of cooling motor 2 generates Air is discharged by the second ventilation opening 14.

In conclusion the garden instrument 100 of the utility model by casing 1 be arranged first opening 51, on motor 2 First through hole 260 is set and the first ventilation opening 13 is set on casing 1, motor is dropped in the inside of motor 2 with realizing Temperature is cooling, provides more structurally sound guarantee for the continual and steady operating of motor 2, motor has obtained better cooling, so that it may hold By bigger load and higher revolving speed, so that the performance of complete machine obtains bigger promotion, it is easier to obtain the favor of client, mention The high market competitiveness；Meanwhile that the motor of lower cost can be made to play higher cost motor is identical even for better cooling system Better performance improves the price advantage and profit of product so that complete machine cost reduces.

Above embodiments are merely intended for describing the technical solutions of the present application, but not for limiting the present application, although referring to preferred embodiment pair The utility model is described in detail, those skilled in the art should understand that, it can be to the technology of the utility model Scheme is modified or replaced equivalently, without departing from the spirit and scope of the technical scheme of the present invention.

Claims (9)

1. a kind of garden instrument, including casing, it is set to motor in the casing with drive shaft, is set under the motor The speed changer of side and the Working mechanism that is set to below the speed changer, it is characterised in that: the casing be equipped with air inlet, First ventilation opening and the partition wall of inside projection；The partition wall surrounds the accommodating space for accommodating the motor；The motor Bottom be equipped with first through hole, the upper end of the motor is equipped with ventilation hole, be formed in the casing connection air inlet with First air duct of the first through hole；First air duct, the inside of the motor, the ventilation hole and first ventilation Mouth forms the first wind path.

2. garden instrument according to claim 1, it is characterised in that: the bottom of the casing is provided with the second ventilation opening, The partition wall includes the first partition wall for separating the motor and the speed changer, the left and right sides for being divided into the motor The second partition wall and third partition wall, be respectively equipped on second partition wall and the third partition wall and receiving sky Between the second opening and third opening that are connected, formed in the casing and be connected to the air inlet, second opening, the receipts Hold second wind path in space, third opening and second ventilation opening.

3. garden instrument according to claim 1, it is characterised in that: the roof of the motor is equipped with the second through-hole, institute State the third wind path for also being formed in casing and being sequentially communicated the air inlet, second through-hole and first ventilation opening.

4. garden instrument according to claim 2, it is characterised in that: first ventilation opening is corresponding with the ventilation hole Setting.

5. garden instrument according to claim 4, it is characterised in that: the motor includes being sheathed in the drive shaft Motor blower fan, the rotor being set to below the motor blower fan and the motor stator group set on the rotor periphery Part, first ventilation opening are arranged close to the motor blower fan.

6. garden instrument according to claim 5, it is characterised in that: second opening is close to third opening The rotor and the motor stator component are arranged.

7. garden instrument according to claim 4, it is characterised in that: the motor further includes housing, and the ventilation hole is set On the housing.

8. garden instrument according to claim 2, it is characterised in that: the position of second opening and third opening Relatively.

9. garden instrument according to claim 2, it is characterised in that: the operation structure is moving head, the moving head Including the moving head fan blade driven by the speed changer and rope of beating the grass, second ventilation opening is set to the moving head fan blade Lower section.