Utility model content
The one side of the utility model is designed to provide a kind of improved screwing tool.
A kind of improved automobile of being designed to provide of the another aspect of the utility model changes electric installation.
In order to realize that foregoing purpose, the first aspect of the utility model provide a kind of screwing tool, wherein described to screw
Tool includes motor, retarder and screws head, and the motor is connect with the retarder, and the motor passes through the deceleration
Head is screwed described in device driving, wherein
The motor and the retarder are arranged to angled with the axis for screwing head.
Optionally, in foregoing screwing tool, 90 degree be the angle ranging from.
Optionally, in foregoing screwing tool, the screwing tool also has crossed-axes gear drive mechanism, the friendship
The setting of wrong shaft transmission the retarder and it is described screw head between, and the crossed-axes gear drive mechanism have with it is described
The first component and the second component coaxially to connect with the retarder that head coaxially connects are screwed, the first component is suitable for and institute
It states second component engagement and realizes crossed-axes gear drive.
Optionally, in foregoing screwing tool, the first end of the direction for the screwing head first component
With drive rod, between the drive rod and the first component for shape coordinate, to limit the first component with it is described
Circumferentially rotating relatively, guiding axially sliding relative between the first component and the drive rod between drive rod.
Optionally, in foregoing screwing tool, the crossed-axes gear drive mechanism is bevel gear mechanism, also, institute
It is first bevel gear to state first component, and the second component is second bevel gear, and the size of the first bevel gear is more than described
Second bevel gear.
Optionally, in foregoing screwing tool, the crossed-axes gear drive mechanism is worm gear mechanism, also,
Head is screwed described in worm gear connection in the worm gear mechanism, the worm screw in the worm gear mechanism connects the deceleration
Device.
Optionally, in foregoing screwing tool, the screwing tool, which also has described in bias in opposite direction, to be revolved
Twist the biasing member of head and the first component.
Optionally, in foregoing screwing tool, the biasing member is helical spring.
Optionally, in foregoing screwing tool, the second end far from the first component for screwing head
With the engagement recess for screwing, it is provided with pin in the engagement recess, and the pin and described screws between recess portion
It is provided with biasing member, pin described in bias screws recess portion with described in opposite direction.
In order to realize foregoing purpose, the second aspect of the utility model provides a kind of automobile and changes electric installation, wherein described
Automobile, which changes, is equipped at least one screwing tool as described in any one of aforementioned first aspect on electric installation.
Specific implementation mode
Explain specific embodiment of the present utility model in detail with reference to the accompanying drawings.In the drawings, identical attached drawing
Label indicates identical or corresponding technical characteristic.
Fig. 1 schematically shows a kind of screwing tool of embodiment according to the present utility model with exploded view.
As shown in the figure, which may include motor 1, retarder 2 and screws first 3.In the shown embodiment,
Motor 1 can be used for providing power for screwing tool.Retarder 2 can reduce motor speed, while increasing output torque and transmitting
To screwing first 3.First 3 are screwed to be suitable for screwing waiting for screwing element(Such as bolt, it is not shown), to be tightened or be unscrewed to it.
It will be seen that screwing first 3 can have complementary shape with the joint portion of screwing element is waited for.For example, when waiting screwing
When the joint portion of component is protrusion, the joint portion for screwing head can be recess portion;When the joint portion of screwing element is recess portion, rotation
The joint portion for twisting head can be protrusion.
In this application, it is not particularly limited the concrete type of motor 1.It will be seen that in alternative embodiments, can
To select the motor of suitable type according to specific needs(Such as servo motor)To realize driving function.As an example, by control
System indicates to control the screwing action for screwing head.As a more specific example, make motor by the control to motor
Action to retarder, screws first action, realizes the screwing action for screwing head.It will be appreciated that control refers to as mentioned herein
Show and usually realize in a software form, and can be implemented in the equipment using the screwing tool.
Similarly, in various embodiments, various forms of retarders 2 can be selected as needed.For example, can basis
The needs of application scenarios select the retarder with desired reduction ratio.In the example of the application, it is understood that
In optional embodiment, it is not excluded that the deceleration transmission mode of any other form.In alternative embodiments, using band
Transmission can protect product from intense impact.
As shown in the figure, motor 1 is connect with retarder 2, and the output of motor 1 can directly or indirectly be input to retarder
2.Example and without limitation, be set to the connecting shaft of motor 1(It does not identify)It can extend into the shaft coupling in retarder 2(It does not mark
Know), to realize the connection of motor 1 and retarder 2.The rotating speed of motor is changed by retarder 2, then again by slowing down
Device 2, which directly or indirectly drives, screws first 3, realizes and treats tightening or unscrewing for screwing element.Bolt is wait for screwing element one
A typical case.However, it is possible to understand, other than bolt, first 3 portions that can be used for screwing any required torquing operations are screwed
Part;Only it is desirable that being designed to and waiting for that the joint portion shape of screwing element coordinates by the end that screws for screwing first 3.
In the shown embodiment, motor 1 and retarder 2 are arranged to and screw first 3 axis into 90 degree of angle.This makes
It obtains motor and retarder is not arranged on the extending direction for the axis for screwing first 3, be conducive to the longitudinal direction for reducing whole screwing tool
Length is suitable for the bolt in tight space(Or it is other wait for screwing element, similarly hereinafter)Carry out torquing operations.It will be seen that can
In the embodiment of choosing, can also motor and retarder be arranged to and be screwed the axis of head into other angles, such as but unlimited
In 30 degree, 45 degree, 60 degree or 0 degree to other any angles between 180 degree, it can also reduce whole rotation to a certain extent
The longitudinal length for the tool of twisting.It will be appreciated that, can between retarder 2 and second component 42 be arranged universal shaft by way of come
Realize above-mentioned other angles, it is other to realize that the mode of above-mentioned angular transformation also may be used.It is appreciated that other angles herein can
Not include straight line angle, i.e., the angle of 0 degree or 180 degree, to ensure motor and retarder not prolonging in the axis for screwing head
It stretches on direction.
In all examples of the application, length of the screwing tool along the axial direction for screwing first 3 is described with " longitudinal direction "
Degree.The application is intended to explanation, angled by the axis for motor 1 and retarder 2 being arranged to and being screwed first 3(Example
Such as 90 degree), screwing tool is reduced along the length of the axial direction of 2 the two of motor 1 and retarder, this to screw using this
When tool carries out torquing operations to the object to be operated, the axial length along 2 the two of motor 1 and retarder reduces.It is empty in operation
Between a direction have certain limitation in the case of, especially had the advantage that according to the screwing tool of the application.For example, more
When renewing the battery of energy automobile, using the screwing tool according to the application, the lift height of automobile subtracts when replacing battery operation
Small, exchange level platform space requirement reduces, and can reduce the dubious zone of cloth displacement level platform and can reduce manufacture
Cost.
In the illustrated embodiment, directly output power but is provided with to screwing first 3 retarder 2 therebetween
Crossed-axes gear drive mechanism 4.As can be seen that the output shaft of retarder 2 with to screw first 3 interlaced, the crossed-axes gear drive mechanism 4 is real
Transmission between the two is showed.It is to be appreciated that herein may include staggeredly that intersection in coplanar and antarafacial are staggered, that is,
The input shaft of crossed-axes gear drive mechanism 4 and the axis of output shaft are antarafacials.
As shown, crossed-axes gear drive mechanism 4 can be arranged in retarder 2 and between screwing first 3, and crossed-axes gear drive
Mechanism 4 can have and screw the first component 41 and the second component 42 coaxially to connect with retarder 2 that first 3 coaxially connect, the
One component 41, which is suitable for engaging with second component 42, realizes crossed-axes gear drive.In order to protect first component 41 and second component 42, such as
Shell 43 is also shown in figure, first component 41 and second component 43 engage each other inside shell 43.
In alternative embodiments, the transmission that can be arranged as required between first component 41 and second component 43
Than.
In the specific example of diagram, crossed-axes gear drive mechanism 4 can be arranged to the form of bevel gear mechanism.It can see
Go out, first component 41 is first bevel gear, and second component 42 is second bevel gear.This bevel gear mechanism will can effectively subtract
The rotation output change direction of fast device, which passes to, screws head.
The size for illustrating first bevel gear in example is more than second bevel gear.This design is suitable for the output to retarder into one
Step is slowed down, while increasing the output of torque.It, can by motor to retarder, retarder to the double reduction of bevel gear mechanism
The wheel of motor is effectively gone out torque suitably to increase, with meet demand.As it can be seen that by the screwing tool so designed, only
Need what the motor for being equipped with output torque very little can be realized as large torque to screw output.
It is appreciated that the crossed-axes gear drive mechanism that can also be taken other form in alternative embodiments.For example, handing over
Wrong shaft transmission can be worm gear mechanism.In this case, the worm gear in worm gear mechanism is as first component
41 connections screw head, and the worm screw in worm gear mechanism connects retarder 2 as second component 42.As it can be seen that worm gear mechanism
It can also realize similar deceleration and increase the effect of torque, help to realize large torque output using micro-machine.
In the case of the above-mentioned realization large torque output using micro-machine, be conducive to further reduce screwing tool
Fitted position, manufacturing cost etc..
It will be seen that in alternative embodiments, it is also contemplated that crossed-axes gear drive mechanism is saved, and in retarder 2
With screw first 3 between be directly realized by staggeredly axis connection.In this way so that the structure of screwing tool is compacter, be conducive to the small of product
Type saves operating space, reduces manufacturing cost.
As shown in the figure, there can be drive rod 31 in the first end towards first component 41 for screwing first 3.It is illustrating
Can be that shape coordinates in embodiment, between drive rod 31 and first component 41 so that drive rod 31 and first component 41 it
Between can only slide along longitudinal direction relative to each other, opposite to limit between first component 41 and drive rod 31 circumferentially rotate,
Axially sliding relative between guiding first component 41 and drive rod 31.
Specifically, in the illustrated embodiment, drive rod 31 is illustratively shown as the section for having rectangular, and
There is the matched square hole 411 of shape in first component 41, to which drive rod 31 is inserted into square hole 411 so that driving
Bar 31 and first component 41 can only be slided along longitudinal direction relative to each other.
For the ease of screwing tool when carrying out torquing operations can shock absorbing, while can ensure its always with wait revolving
Stubborn component engagement, screwing tool can also screw the biasing member 5 of first 3 and first component 41 with bias in opposite direction.
In certain situations, biasing member 5 may be necessary.For example, in one case, waiting for screwing element such as spiral shell
Bolt etc. is preloaded onto in battery pack, after the battery installation position that battery pack is snapped to new-energy automobile sets place, is needed in advance
Compression waits for that screwing element effectively could carry out torquing operations to it.It is also possible to understand, in certain specific embodiments
In, in the case where screwing element progress compression in advance need not be treated, it is convenient to omit the biasing member.
In the shown embodiment, biasing member 5 can be helical spring, be wound on outside drive rod 31, two ends
It can abut respectively and screw head and first component 41.It will be seen that in optional other embodiment, can also select other
The bias piece of form, especially resilient bias, no longer repeat one by one herein.
The second end of first 3 separate first component 41 is screwed with the engagement recess 32 for screwing, screws first 3 at this time
In the form of screwing sleeve.There is the interior shape for being suitable for and waiting for that screwing element matches, in order to the two in engagement recess 32
It circumferentially engages, torquing operations is carried out to treat screwing element.For example, when screwing element is hexagon-headed bolt, engagement is recessed
It is in interior hexagonal recess portion that portion 32, which then has, is suitable for engaging with the bolt head of hexagonal.It will be seen that the shape of engagement recess and bolt head
Shape is not limited to hexagonal configuration, and any other non-circular shapes are applicable.
It can be provided with pin 6 in engagement recess 32, and pin 6 and biasing member can also be provided between screwing first 3
7, biased pin 6 and screw first 3 in opposite direction.Biasing member 7 can also be helical spring.It clearer can see in fig. 2
Go out engagement of the pin 6 in engagement recess.
In alternative embodiments, the second end for screwing first 3 separate first component 41 can alternatively have use
In the engagement projections screwed.It is appreciated that in this case, waiting for that screwing element has corresponding matched shape, in order to nibble
It closes protrusion driving and waits for screwing element, realize torquing operations.
Fig. 2 schematically shows the screwing tool in Fig. 1 with assembling figure.
It can be seen from the figure that in this embodiment, motor 1, retarder 2, sleeve 3 and the alternating axis of screwing tool pass
Motivation structure 4 collectively forms L-type.This shows compared with motor 1, retarder 2 and sleeve 3 etc. are along straight line screwing tool in one line
So reduces longitudinal size, reduces occupied space.
According to Fig. 2, first component 41 is mounted on by bearing 9 in the shell 43 of crossed-axes gear drive mechanism 4.It revolves in order to prevent
The drive rod for twisting head 3 falls off out of first component 41 hole, ensures the functional reliability of screwing tool, can be at the end of drive rod
End is equipped with gasket 8.It is appreciated that gasket 8 both can be bonded to driving by spiral shell peg or pin etc. in various embodiments
The end of bar, or can also be fastened in the circumferential recess of drive rod end, play the role of anti-dropout.Further,
In alternative embodiments, can also same effect be realized using bolt, clamp spring radially etc..
Slot 33 is formed at the side for screwing first 3 from can also be seen that in Fig. 2.When pin 6 is from the engagement for screwing first 3
After recess portion 32 is inserted into, bolt can be inserted into from slot 33(It is not shown), so that the end of bolt is reached the longitudinal direction on the side of pin 6 sliding
Slot(It is not shown)It is interior, to pin 6 can in the engagement recess 32 for screwing first 3 straight skidding without falling off.What this was biased against
Pin 6 can be further ensured that and wait for the engagement of screwing element, enhance operating reliability.
The another aspect of the utility model additionally provides a kind of automobile and changes electric installation, which changes on electric installation and can equip
There is at least one screwing tool as described in any one of aforementioned embodiment.It will be seen that the automobile of such setting changes Denso
Set will have the advantages that it is corresponding.For example, it can be a kind of battery changing trolley that the automobile, which changes electric installation, may be adapted to change level platform with
It is round-trip between battery storage storehouse, the battery for needing complementary energy on new-energy automobile is unloaded by screwing tool and transports to battery storage
Storehouse, and completed the battery of charging from battery storage storehouse docked and transported to change level platform and then install to new-energy automobile.
In various embodiments, this battery changing trolley can be the rail-free trolley of rail battery changing trolley or intelligent control.
The technical scope of the utility model is not limited solely to the content in above description, and those skilled in the art can be
Under the premise of not departing from the utility model technological thought, many variations and modifications are carried out to the above embodiment, and these are deformed
It should all belong in the scope of the utility model with modification.