CN206899139U - A kind of laborsaving drawing horse - Google Patents
A kind of laborsaving drawing horse Download PDFInfo
- Publication number
- CN206899139U CN206899139U CN201720663665.XU CN201720663665U CN206899139U CN 206899139 U CN206899139 U CN 206899139U CN 201720663665 U CN201720663665 U CN 201720663665U CN 206899139 U CN206899139 U CN 206899139U
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- China
- Prior art keywords
- gear
- support base
- screw
- worm
- connecting rod
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Abstract
A kind of laborsaving drawing horse is the utility model is related to, belongs to extracting tool technical field.In order to solve the problems, such as that it is laborious that existing drawing horse uses, there is provided a kind of laborsaving drawing horse includes the support base with installation cavity, the bottom of support base has screw shell, screw shell is provided with pulling claw component, run through in screw shell and be provided with screw putter, there is the worm gear one being meshed and worm screw one in the installation cavity of support base, screw putter upper end and one circumferentially positioned connection of worm gear, the both ends of worm screw one are arranged in two opposing sidewalls of support base, also there is baffle plate in installation cavity, the limit chamber of an insertion is formed between baffle plate and a side wall of support base, it is mounted therein with the gear one and gear two being meshed, worm screw one passes through baffle plate and one circumferentially positioned connection of gear, the both ends of gear two are respectively rotatably in the side wall of baffle plate and support base；One end of gear two has rotation head, and the diameter of gear one is more than gear two.This laborsaving drawing saddlery has using the laborsaving and quick effect of reset.
Description
Technical field
A kind of laborsaving drawing horse is the utility model is related to, belongs to extracting tool technical field.
Background technology
Dismounting part is typically required during machinery maintenance, bearing, sprocket wheel are such as dismantled, one during maintenance
As be required to be dismantled using puller (draw horse).At present, the puller of in the market is to use the puller with two pawls or three-jaw.
The structure of this kind of puller, which mainly includes one, has support base, threaded mandrel and the spiral shell to match with threaded mandrel of installation cavity
Line cover or or nut and be hinged supporter on pulling claw, the end of general threaded mandrel also has top.Puller is using
During, the close part being engaged with part to be removed is come directly towards using the end of threaded mandrel, threaded mandrel is rotated and produces
Thrust and pulling force, reach by parts dismounting separation purpose.But current mechanical puller generally existing was dismantled
The shortcomings that laborious time-consuming in journey, and reset is not utilized yet in rollback threaded mandrel.Such as Chinese patent (publication number：
CN101890692A a kind of Worm gear puller disclosed in), including a supporter, a threaded mandrel, one with threaded mandrel phase
The thread bush matched somebody with somebody and at least two pulling claws being hinged on supporter, the ejection end of the threaded mandrel is provided with top, described
Supporter is a box-like body, and the worm and worm wheel for the transmission that is meshed are equipped with the box-like body, and the turn end of worm screw is located at case
Outside body, described thread bush is fixed in the endoporus of worm-wheel shaft, and threaded mandrel runs through the endoporus of worm-wheel shaft, its turn end, pushes away
Top is respectively outside box-like body.But it also compares expense only with the mode rotational efficienty of worm and gear than relatively low, during rotation
Power, and because worm and gear has certain self-locking performance in itself, be unfavorable for resetting；And due to its threaded mandrel directly with worm gear shape
Into positioning, worm and gear need to be driven when threaded mandrel resets while is rotated, is so resetted relatively elaborate etc..
The content of the invention
The utility model proposes a kind of laborsaving drawing horse for defect present in above prior art, solve the problems, such as be
How the pulling force that draws horse and and use labour-saving performance are improved.
The purpose of this utility model technical scheme is that, a kind of laborsaving drawing horse, including with peace
The support base behaveing affectedly, the bottom of the support base have screw shell, and the screw shell is provided with pulling claw component, the screw thread
Through screw putter is provided with sleeve, there is the worm gear one being meshed and worm screw one, the spiral shell in the installation cavity of the support base
The upper end of line push rod and one circumferentially positioned connection of worm gear, the both ends of the worm screw one are rotatably arranged on the two of support base respectively
In individual opposing sidewalls, it is characterised in that also there is baffle plate in the installation cavity of the support base, one of the baffle plate and support base
The limit chamber of an insertion is formed between side wall, the gear one and gear two being meshed, the worm screw are installed in the limit chamber
One is rotatably arranged on baffle plate and support base respectively through baffle plate and one circumferentially positioned connection of gear, the both ends of the gear two
Side wall on；One end of the gear two has a rotation head, and the rotation head is located at the outside of support base side wall, the gear one it is straight
Footpath is more than gear two.
By being mounted with pitch wheel one and gear two in one end of worm screw one, and make location and installation in worm screw one
On gear one diameter be more than gear two diameter, change overall gearratio, so as to well solve individually use snail
The problem of existing transmission efficiency is low during worm and gear, makes in the rotation head of rotate gear two, then be transferred to worm screw by gear one
One, the effect for driving threaded mandrel rotation to pass on worm gear one is then transferred to again, by changing gearratio, so that driving spiral shell
More labour-saving effect when line push rod rotates；Meanwhile by setting a baffle plate in installation cavity, gear one and gear two can be made more
Stable is arranged on worm screw one, occurs the phenomenon slid during the rotation for preventing gear one and gear two, so as to ensure
After increasing the gear two of gear one being meshed, it can also ensure with overall transmission stability and preferable transmission efficiency.
In above-mentioned laborsaving drawing Malaysia and China, the upper end of the screw putter offers detent, is provided with the detent
Connecting rod, slidable connection between the detent and connecting rod, upper end and the one circumferentially positioned peace of worm gear of the connecting rod
Dress, the upper end of the connecting rod passes the upper face of support base.Because connecting rod is removably located in detent, and
Connecting rod is passed the surface of support base after worm gear, screw putter is directly extracted out after use this makes it possible to make connecting rod
Detent, so, when screw putter resets, on the one hand, without driving turning for worm and gear and gear one and gear two
It is dynamic, directly screw putter is rotated and resetted, reduces the resistance of reset, resets labour-saving effect so as to reach；The opposing party
Face, after connecting rod is extracted out, the frictional force between the detent inwall of screw putter and connecting rod can be also reduced,
Resistance is resetted so as to can also have the function that to reduce；Make to reach dual labor-saving effect in drawing horse and reseting procedure is rotated
In above-mentioned laborsaving drawing Malaysia and China, the detent is in square, and the connecting rod is located at one end in detent
In square, the connecting rod and detent slidable connection.Shape between screw putter and worm gear one and connecting rod can be made
Into relatively stable circumferentially positioned effect, make to be not easy to skid in operation, the stability for drawing horse stress is improved, so as to also can
Enough reach labour-saving purpose.
In above-mentioned laborsaving drawing Malaysia and China, the modulus ratio of the gear two and gear one is 1：3-5.Can further it increase whole
The gearratio of body, make to carry out improving the labor-saving effect for drawing horse.
In above-mentioned laborsaving drawing Malaysia and China, the upper end of the connecting rod is provided with positioning hole, and the positioning hole is provided with draw ring.Pass through
Be advantageous to preferably extract connecting rod out provided with draw ring in the upper end of connecting rod, improve the convenience of operation.
In above-mentioned laborsaving drawing Malaysia and China, the upper surface of the screw shell is higher than the bottom interior surface of support base.So can
The bottom surface for the worm gear one for making to be disposed thereon end can be slightly above the lower surface of support base, reduce worm gear one and rubbed with the generation of its surface
Wipe, so as to also can further improve laborsaving ability.
In above-mentioned laborsaving drawing Malaysia and China, the pulling claw component includes fixed seat and at least two pulling claws, the fixed seat and spiral shell
The external screw thread of line sleeve is connected through a screw thread, and the upper end of above-mentioned pulling claw is circumferentially uniformly hinged in fixed seat.By by pulling claw group
Part is arranged on screw shell, due to making, using threaded connection, when in use, can be adjusted according to the size of part to be removed
The position of pulling claw component, improve the stability of pulling claw；And the uniformity of stress can be improved using at least two pulling claws, enable
Enough effects for faster dismantling part.
In summary, the utility model compared with prior art, has advantages below：
1. laborsaving drawing horse by set in one end of worm screw one pitch wheel one and the drive mechanism of gear two come
Increase gearratio, make drawing horse that there is more labour-saving effect in dismounting.
2. laborsaving drawing horse by making specific dismountable connecting rod, can extract out screw putter detent and
Worm gear one, so that drawing horse only to need to reset screw putter by threads turn when resetting, worm gear snail is driven without extra
Rotated while bar and gear transmission structure, so as to greatly improve the efficiency of reset and make reset more labour-saving effect.
Brief description of the drawings
Fig. 1 is the three-dimensional structure diagram after this laborsaving upper lid for drawing horse to decompose support base.
Fig. 2 is this laborsaving front view for drawing horse.
Fig. 3 be in this laborsaving drawing horse Fig. 2 A-A to sectional structure chart.
Fig. 4 is this laborsaving three-dimensional structure diagram drawn after horse removal support base.
In figure, 1, support base；11st, lid；12nd, screw shell；14th, baffle plate；2nd, pulling claw component；21st, fixed seat；22nd, draw
Pawl；3rd, screw putter；31st, detent；4th, worm gear one；5th, worm screw one；6th, gear one；7th, gear two；71st, head is revolved；8th, connect
Bar；81st, positioning hole；9th, draw ring.
Embodiment
Below by specific embodiments and the drawings, the technical solution of the utility model is described in further detail, but
It is that the utility model is not limited to these embodiments.
As depicted in figs. 1 and 2, this laborsaving drawing horse includes the support base 1 with installation cavity, wherein, the bottom tool of support base 1
There is screw shell 12, screw shell 12 is connected with bottom, and pulling claw component 2, screw shell 12 are provided with screw shell 12
It is interior through being provided with screw putter 3, the lower end of screw putter 3 is passed outside screw shell 12, make the lower end of screw shell 12
There is internal thread with the external screw thread on screw putter 3 to match on inwall to be spirally connected, have in the installation cavity of support base 1 and mutually nibble
The worm gear 1 of conjunction and worm screw 1, upper end and the one 4 circumferentially positioned connection of worm gear of screw putter 3, as screw putter 3 can be made
Upper end be directly fixed together with worm gear 1 or it is dismountable it is circumferentially positioned be fixedly connected with mode, make worm screw 1
Both ends are rotatably arranged in two opposing sidewalls of support base 1 respectively, have baffle plate 14, phase in the installation cavity of support base 1
When the installation cavity of support base 1 is divided into two chambers in baffle plate 14, wherein, make between baffle plate 14 and a side wall of support base 1
The limit chamber of an insertion is formed, pitch wheel 1 and gear 27 are installed in limit chamber, wear one end of worm screw 1
Baffle plate 14 and one 6 circumferentially positioned connection of gear are crossed, can such as make that there is positioning key on the relevant position of worm screw 1, make gear 1
Upper to have locating slot, both are engaged the effect for reaching circumferentially positioned installation.The relevant position of baffle plate 14 is set to be provided with a through hole
Worm screw is set to pass through, the both ends of gear 27 are rotatably arranged in the side wall of baffle plate 14 and support base 1 respectively, its
In, one end of gear 27 has rotation first 71, and rotation first 71 is located at the outside of the side wall of support base 1.So, when in use, as long as directly
Rotation first 71 is rotated by spanner or motor, rotation first 71 is advantageous to fix, is less prone to the effect of skidding preferably with square
Fruit；Wherein, the diameter of gear 1 is made to be more than gear 27.By making the different mode of two gear diameters, and diameter is less
There is rotation first 71, it becomes possible to realize increase gearratio to reach labour-saving effect on gear 27.Wherein, the top tool of support base 1
There is lid 11, lid 11 is fixed by screw and covered.
Further, as shown in figure 3, making the upper end of screw putter 3 offer detent 31, in detent 31
Provided with connecting rod 8, slidable connection between detent 31 and connecting rod 8, that is to say, that directly directly plug connecting rod 8
In detent 31, make between connecting rod 8 and detent 31 relatively slidably, between the upper end of connecting rod 8 and worm gear 1
Circumferentially positioned connection is formed, the upper end of connecting rod 8 passes the upper face of support base 1.By making the upper end of connecting rod 8 pass branch
The upper surface of seat 1 is supportted, is advantageous to the extraction of connecting rod 8 and is put into detent 31, is more convenient quickly operation.As entering
One step it is preferred, it is in square to make detent 31, can also the upper part of only detent 31 be in square, while make company
One end that extension bar 8 is located in detent 31 is in square, then connecting rod 8 is slidably connected with detent 31, by using
The shape of square matches, and is advantageous to preferably make to form circumferentially positioned effect between connecting rod 8 and screw putter 3, uses
When, the effect more balanced during the drive rotation of screw putter 3 of connecting rod 8 is made under the rotary action of worm and gear, wherein, screw thread pushes away
The front end of bar 3 is also provided with coming directly towards, and makes have more preferable hardness, improves its service life.
Preferably, the modulus ratio that can make gear 27 and gear 1 is 1：3-5.Make to have more by the Proportionality design
Good gearratio reaches more preferable labor-saving effect.Further, the upper end of connecting rod 8 is made to be provided with positioning hole 81, positioning hole
81 are provided with draw ring 9.It is to be more beneficial for the extraction of connecting rod 8 by setting the purpose of draw ring 9, makes more convenient operation quick.
The upper surface of screw shell 12 can also be made to be higher than the bottom interior surface of support base 1.Make the bottom surface of worm gear 1 will not be with bottom table
Face contacts, and advantageously reduces frictional force when worm gear 1 rotates, can also reach labour-saving effect.
Further, as shown in Figures 1 to 4, wherein, pulling claw component 2 includes fixed seat 21 and at least two pulling claws
22, fixed seat 21 and the external screw thread of screw shell 12 are connected through a screw thread, thus can be solid by rotating according to actual conditions
Reservation 21 adjusts its relative position, makes to be advantageous to more stable pawl to live the part that need to be dismantled；The upper end of above-mentioned pulling claw 22 is circumferential
Uniformly it is hinged in fixed seat 21, it is desirable that in the circumferential using spaced set, wherein, the quantity of pulling claw 22 can root
Multiple pulling claws 22 such as two, three or four are designed to according to being actually needed.
This laborsaving drawing horse when in use, makes pulling claw 22 hook in the outer of part to be dismantled, and makes during screw putter 3 withstands on relatively
The position of the heart is installed on the part of part to be removed, then, is rotated with the rotation of spanner or motor rotate gear 27 first 71, then,
Drive meshed gears 1, worm screw 1 and worm gear 1 to rotate, so as to drive the rotation of screw putter 3 to move forward, push away screw thread
The part of bar 3 to installation part applies pressure, so as to which part slowly be pulled out, reaches the effect of dismounting part.
Specific embodiment described in the utility model is only to the utility model spirit explanation for example.This practicality is new
Type person of ordinary skill in the field can make various modifications or supplement or use to described specific embodiment
Similar mode substitutes, but without departing from spirit of the present utility model or surmounts model defined in appended claims
Enclose.
Although the utility model is made a detailed description and has been cited some specific embodiments, to this area
For those of skill in the art, as long as it is obvious that can make various changes or correct without departing from spirit and scope of the present utility model.
Claims (7)
1. a kind of laborsaving drawing horse, including the support base (1) with installation cavity, the bottom of the support base (1) have screw shell
(12), the screw shell (12) is provided with pulling claw component (2), runs through in the screw shell (12) and is provided with screw putter (3),
There is the worm gear one (4) being meshed and worm screw one (5), the upper end of the screw putter (3) in the installation cavity of the support base (1)
With the circumferentially positioned connection of worm gear one (4), the both ends of the worm screw one (5) are rotatably arranged on two of support base (1) respectively
In opposing sidewalls, it is characterised in that also there is baffle plate (14), the baffle plate (14) and branch in the installation cavity of the support base (1)
Support the limit chamber that an insertion is formed between a side wall of seat (1), be provided with the limit chamber gear one (6) that is meshed and
Gear two (7), the worm screw one (5) is through baffle plate (14) and the circumferentially positioned connection of gear one (6), and the two of the gear two (7)
End is respectively rotatably in side wall of the baffle plate (14) with support base (1)；One end of the gear two (7) has rotation head
(71), the rotation head (71) is located at the outside of support base (1) side wall, and the diameter of the gear one (6) is more than gear two (7).
2. laborsaving drawing horse according to claim 1, it is characterised in that it is recessed that the upper end of the screw putter (3) offers positioning
Groove (31), the detent (31) is interior to be provided with connecting rod (8), between the detent (31) and connecting rod (8) slidably
Connection, upper end and the circumferentially positioned installation of worm gear one (4) of the connecting rod (8), the upper end of the connecting rod (8) passes support base
(1) upper face.
3. laborsaving drawing horse according to claim 2, it is characterised in that the detent (31) is in square, the connection
It is in square that bar (8), which is located at detent (31) interior one end, the connecting rod (8) and detent (31) slidable connection.
4. according to the laborsaving drawing horse of claim 1 or 2 or 3, it is characterised in that the gear two (7) and the mould of gear one (6)
Number is than being 1：3-5.
5. according to the laborsaving drawing horse of claim 1 or 2 or 3, it is characterised in that the upper end of the connecting rod (8) is provided with positioning
Hole (81), the positioning hole (81) are provided with draw ring (9).
6. according to the laborsaving drawing horse of claim 1 or 2 or 3, it is characterised in that the upper surface of the screw shell (12) is high
Bottom interior surface in support base (1).
7. according to the laborsaving drawing horse of claim 1 or 2 or 3, it is characterised in that the pulling claw component (2) includes fixed seat
(21) and at least two pulling claws (22), the fixed seat (21) and the external screw thread of screw shell (12) are connected through a screw thread, above-mentioned
The upper end of pulling claw (22) is circumferentially uniformly hinged in fixed seat (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720663665.XU CN206899139U (en) | 2017-06-08 | 2017-06-08 | A kind of laborsaving drawing horse |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720663665.XU CN206899139U (en) | 2017-06-08 | 2017-06-08 | A kind of laborsaving drawing horse |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206899139U true CN206899139U (en) | 2018-01-19 |
Family
ID=61286245
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720663665.XU Expired - Fee Related CN206899139U (en) | 2017-06-08 | 2017-06-08 | A kind of laborsaving drawing horse |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206899139U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113043209A (en) * | 2021-04-22 | 2021-06-29 | 江西五十铃汽车有限公司 | Tool for simply disassembling steering rocker arm |
-
2017
- 2017-06-08 CN CN201720663665.XU patent/CN206899139U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113043209A (en) * | 2021-04-22 | 2021-06-29 | 江西五十铃汽车有限公司 | Tool for simply disassembling steering rocker arm |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180119 Termination date: 20180608 |