CN209059338U - Spiral circular groove type reciprocating transmission mechanism and reciprocating saw - Google Patents
Spiral circular groove type reciprocating transmission mechanism and reciprocating saw Download PDFInfo
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- CN209059338U CN209059338U CN201820167376.5U CN201820167376U CN209059338U CN 209059338 U CN209059338 U CN 209059338U CN 201820167376 U CN201820167376 U CN 201820167376U CN 209059338 U CN209059338 U CN 209059338U
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- actuating sleeve
- transmission mechanism
- annular groove
- reciprocal
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Abstract
The utility model discloses a kind of spiral circular groove type reciprocating transmission mechanism and reciprocating saws, and wherein spiral circular groove type reciprocating transmission mechanism includes body, is set to the intracorporal reciprocal axis of machine and the reciprocal axis driving assembly for driving reciprocal axis to move axially in reciprocal fashion；The reciprocal axis driving assembly includes power input shaft, is axially driven the transmission shaft cooperated and rotating jacket in transmission shaft with reciprocal axis edge and is circumferentially driven the actuating sleeve cooperated with power input shaft, the transmission shaft outer circle is provided with spiral annular groove, the actuator of the actuating sleeve inner circle setting and spiral annular groove form-fit, the power input shaft are moved axially in reciprocal fashion when circumferentially rotatable by actuating sleeve drive transmission shaft；Cooperated by the actuator of actuating sleeve and the spiral annular groove of transmission shaft, actuating sleeve and actuator rotation is driven to realize that transmission shaft drives reciprocal axis to move back and forth using power input shaft, it is good that drive mechanism, reduction volume, easy to process and transmission stability can be simplified, long service life.
Description
Technical field
The utility model relates to a kind of reciprocating transmission mechanism and surgical instruments, and in particular to a kind of spiral circular groove type is reciprocal
Transmission mechanism and reciprocating saw.
Background technique
Orthopaedics reciprocating saw is the relatively conventional Surigical tool of orthopaedics, is completed by orthopaedics saw equipment (handle)；It is existing
In technology, transmission mechanism need to be generally arranged in the equipment of the operation, and rotational motion is switched to move back and forth；The transmission mechanism generally wraps
Reciprocal axis and driving assembly are included, reciprocal axis is set in body and is stretched out by front end；Driving assembly includes power input shaft and sets
It is placed in the bevel gear set of power input shaft front end and is set to the crankshaft of bevel gear set driven wheel of differential, reciprocal shaft rear end transmission is matched
The kidney-shaped axle sleeve for being equipped with and being coated at crankshaft is closed, drives kidney-shaped axle sleeve to realize front-rear reciprocation movement by driving crank rotation；
Existing reciprocating transmission mechanism realizes transmission due to being provided with bevel gear set and crankshaft, so that structure is complicated, body for reciprocating transmission mechanism
The larger, processing difficulties of product and higher cost, meanwhile, transmission mechanism is easy to wear, and stability is poor, service life.
Utility model content
In view of this, providing spiral circular groove type the purpose of the utility model is to overcome defect in the prior art and back and forth passing
Motivation structure and reciprocating saw can simplify drive mechanism, good, the long service life that reduces volume, easy to process and transmission stability.
The spiral circular groove type reciprocating transmission mechanism of the utility model, including body, be set to the intracorporal reciprocal axis of machine and
Reciprocal axis driving assembly for driving reciprocal axis to move axially in reciprocal fashion；The reciprocal axis driving assembly includes power input
Axis is matched with reciprocal axis along the axial transmission shaft for being driven cooperation and rotating jacket in transmission shaft and with power input shaft circumferential direction transmission
The actuating sleeve of conjunction, the transmission shaft outer circle are provided with spiral annular groove, the actuating sleeve inner circle setting and spiral annular groove form-fit
Actuator, drive transmission shaft to move axially in reciprocal fashion by actuating sleeve when the power input shaft is circumferentially rotatable.
Further, the concave surface of the spiral annular groove is the cambered surface with spherical surface form-fit.
Further, the actuator is spin, and it is fixed that the side wall of the actuating sleeve is provided with the spin for positioning to spin
Position slot or spin location hole, the spin is partially submerged into spin locating slot or spin location hole realizes spin positioning.
Further, the spiral annular groove includes the preceding spiral annular groove and rear screw annular groove along axial and column distribution, before described
The rotation direction of spiral annular groove and rear screw annular groove it is oppositely oriented.
Further, protrusion forms connecting screw among the transmission shaft front end face, the reciprocal shaft rear end face be provided with
The connecting screw hole that connecting screw is threadedly engaged.
Further, the actuating sleeve is by being placed on body inner circle in rolling bearing rotation.
Further, the rolling bearing includes positioned at the front roll bearing of actuating sleeve front end and behind actuating sleeve rear end
Rolling bearing；Bearing spacer is provided between the forward and backward rolling bearing.
Further, the front end outer circle of the actuating sleeve is formed for travelling forward the limiting stand of limit to front roll bearing
Rank, the rear end outer circle of actuating sleeve are provided with for the retaining ring to rear rolling bearing sports limiting backward.
Further, the outer circle of the actuating sleeve is provided with axially distributed air channel.
Further, the actuating sleeve and power input shaft are integrally formed.
The invention also discloses a kind of reciprocating saw, the reciprocating saw is provided with past for driving cutter to move back and forth
Multiple transmission mechanism, the reciprocating transmission mechanism are above-mentioned spiral circular groove type reciprocating transmission mechanism.
The beneficial effects of the utility model are: a kind of spiral circular groove type reciprocating transmission mechanism disclosed by the utility model and
Reciprocating saw, is cooperated by the actuator of actuating sleeve and the spiral annular groove of transmission shaft, drives actuating sleeve and drive using power input shaft
Moving part, which rotates, realizes that transmission shaft drives reciprocal axis to move back and forth, and can simplify drive mechanism, reduce volume, easy to process and transmission
Stability is good, long service life.
Detailed description of the invention
The utility model is further described with reference to the accompanying drawings and examples:
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the structural schematic diagram of actuating sleeve and power input shaft in the utility model；
Fig. 3 is the structural schematic diagram of transmission shaft in the utility model；
Each component serial numbers:
1, body；2, reciprocal axis；3, power input shaft；4, transmission shaft；5, actuating sleeve；6, actuator；7, spin location hole；
8, preceding spiral annular groove；9, rear screw annular groove；10, connecting screw；11, front roll bearing；12, rear rolling bearing；13, in bearing every
Set；14, bearing outer separator；15, limited step；16, retaining ring；17, air channel.
Specific embodiment
Fig. 1 is the structural schematic diagram of the utility model, and Fig. 2 is the structure of actuating sleeve and power input shaft in the utility model
Schematic diagram, Fig. 3 is the structural schematic diagram of transmission shaft in the utility model, as shown, the spiral circular groove type in the present embodiment is past
Multiple transmission mechanism, including body 1, the reciprocal axis 2 being set in body 1 and for driving reciprocal axis 2 to move axially in reciprocal fashion
Reciprocal axis driving assembly, the reciprocal axis driving assembly include power input shaft 3, with reciprocal axis 2 along axial transmission cooperation
Transmission shaft 4 and rotating jacket are in transmission shaft 4 and actuating sleeve 5 with the circumferential transmission cooperation of power input shaft 3, the transmission shaft 4
Outer circle is provided with spiral annular groove, and the actuator 6 with spiral annular groove form-fit is arranged in 5 inner circle of actuating sleeve, and the power is defeated
Enter axis 3 it is circumferentially rotatable when by actuating sleeve 5 drive transmission shaft 4 move axially in reciprocal fashion；Specifically, circumferential to indicate transmission shaft 4
Circumferencial direction, certainly, the transmission shaft 4 can be fixed on the realization of reciprocal axis 2 by front end circumferentially to be rotated, or pass through it
He realizes that transmission shaft 4 is only capable of moving forward and backward without being able to rotate by existing circumferential position-limit mechanism；
From the foregoing, it will be observed that cooperating by the actuator 6 of actuating sleeve 5 and the spiral annular groove of transmission shaft 4, power input shaft 3 is utilized
It drives actuating sleeve 5 and the rotation of actuator 6 to realize that transmission shaft 4 drives reciprocal axis 2 to move back and forth, drive mechanism can be simplified, reduced
Volume, easy to process and transmission stability are good, long service life.
In the present embodiment, the part of the surface that the actuator 6 is located at spiral annular groove is spherical surface；The concave surface of the spiral annular groove
For the cambered surface with spherical surface form-fit；It is soft conducive to actuator 6 and spiral annular groove active force, it avoids card from relating to, guarantees that driving is smooth.
In the present embodiment, the actuator 6 is spin, and the side wall of the actuating sleeve 5 is provided with for positioning to spin
Spin locating slot or spin location hole 7, the spin is partially submerged into spin locating slot or spin location hole 7 realizes spin positioning；
As shown, the present embodiment uses spin location hole 7, the outer circle of actuating sleeve 5 is arranged with the inner circle of bearing spacer and bearing spacer
Radially spin is limited, by the setting of spin, is conducive to reduce friction and fever, is conducive to use for a long time.
In the present embodiment, the spiral annular groove includes the preceding spiral annular groove 8 and rear screw annular groove 9 along axial and column distribution,
The rotation direction of the preceding spiral annular groove 8 and rear screw annular groove 9 it is oppositely oriented；The preceding spiral annular groove 8 is with rear screw annular groove 9 along biography
4 radial end face of moving axis is symmetrical arranged, and certainly, preceding spiral annular groove 8 is correspondingly arranged on spin, forward and backward spiral with rear screw annular groove 9
The setting of annular groove 9 is conducive to improve axial load balance, improves conducive to the stability of transmission mechanism.
In the present embodiment, protrusion forms connecting screw 10, reciprocal 2 rear end face of axis among 4 front end face of transmission shaft
It is provided with the connecting screw hole being threadedly engaged with connecting screw 10；The rear end face of the transmission shaft 4, which is provided with, facilitates driving rotation
Flat recess, structure is simple, is convenient to mount and dismount, and is easily changed.
In the present embodiment, the actuating sleeve 5 is by being placed on 1 inner circle of body in rolling bearing rotation；The axis of rolling is contracted
Include the rear rolling bearing positioned at the front roll bearing 11 of 5 front end of actuating sleeve and positioned at 5 rear end of actuating sleeve；The forward and backward axis of rolling
Bearing spacer is provided between holding；The bearing spacer includes bearing inner spacing collar 13 and is covered in outside the bearing of bearing inner spacing collar 13 outside
Spacer 14, conducive to the spacing kept between front roll bearing 11 and rear rolling bearing 12.
In the present embodiment, the front end outer circle of the actuating sleeve 5 is formed for travelling forward limit to front roll bearing 11
Limited step 15, the rear end outer circle of actuating sleeve 5 are provided with for the retaining ring 16 to the sports limiting backward of rear rolling bearing 12；It is described
The rear end outer circle of actuating sleeve 5 is provided with 16 mounting groove of retaining ring, and structure is simple, easy to assembly；The actuating sleeve 5 and power input shaft
3 are integrally formed；Bonding strength is high, easily manufactured.
In the present embodiment, the outer circle of the actuating sleeve 5 is provided with axially distributed air channel 17；Air channel 17 is for arranging
Gas and air inlet prevent from forming closing chamber gas compression and expansion, lead to power loss and fever.
The present embodiment also discloses a kind of reciprocating saw, and the reciprocating saw is provided with reciprocal for driving cutter to move back and forth
Transmission mechanism, the reciprocating transmission mechanism are above-mentioned spiral circular groove type reciprocating transmission mechanism；Structure is simple, easy to process, property
It can stablize.
Finally, it is stated that above embodiments are merely intended for describing the technical solutions of the present application, but not for limiting the present application, although ginseng
The utility model is described in detail according to preferred embodiment, those skilled in the art should understand that, it can be to this
The technical solution of utility model is modified or replaced equivalently, without departing from the objective and model of technical solutions of the utility model
It encloses, should all cover in the scope of the claims of the utility model.
Claims (10)
1. a kind of spiral circular groove type reciprocating transmission mechanism, including body, it is set to the intracorporal reciprocal axis of machine and past for driving
The reciprocal axis driving assembly that multiple axis moves axially in reciprocal fashion, it is characterised in that:
The reciprocal axis driving assembly includes outside power input shaft, the transmission shaft cooperated with the reciprocal axial transmission in axis edge and rotation
It is placed on transmission shaft and is circumferentially driven the actuating sleeve of cooperation with power input shaft, the transmission shaft outer circle is provided with spiral annular groove, institute
State the setting of actuating sleeve inner circle and the actuator of spiral annular groove form-fit, the power input shaft passes through driving when circumferentially rotatable
Set drives transmission shaft to move axially in reciprocal fashion.
2. spiral circular groove type reciprocating transmission mechanism according to claim 1, it is characterised in that: the actuator is located at spiral
The part of the surface of annular groove is spherical surface；The concave surface of the spiral annular groove is the cambered surface with spherical surface form-fit.
3. spiral circular groove type reciprocating transmission mechanism according to claim 2, it is characterised in that: the actuator is spin,
The side wall of the actuating sleeve is provided with spin locating slot or spin location hole for positioning to spin, and the spin is partially submerged into
Spin locating slot or spin location hole realize spin positioning.
4. spiral circular groove type reciprocating transmission mechanism according to claim 1, it is characterised in that: the spiral annular groove includes edge
Axial and column distribution preceding spiral annular groove and rear screw annular groove, the rotation direction of the preceding spiral annular groove and the rotation direction phase of rear screw annular groove
Instead.
5. spiral circular groove type reciprocating transmission mechanism according to claim 1, it is characterised in that: in the transmission shaft front end face
Between protrusion form connecting screw, the reciprocal shaft rear end face is provided with the connecting screw hole being threadedly engaged with connecting screw.
6. spiral circular groove type reciprocating transmission mechanism according to claim 1, it is characterised in that: the actuating sleeve passes through rolling
Body inner circle is placed in bearing rotation.
7. spiral circular groove type reciprocating transmission mechanism according to claim 6, it is characterised in that: the rolling bearing includes position
In the front roll bearing of actuating sleeve front end and rear rolling bearing positioned at actuating sleeve rear end；It is set between the forward and backward rolling bearing
It is equipped with bearing spacer.
8. spiral circular groove type reciprocating transmission mechanism according to claim 7, it is characterised in that: outside the front end of the actuating sleeve
Circle is formed for travelling forward the limited step of limit to front roll bearing, and the rear end outer circle of actuating sleeve is provided with for rear rolling
The retaining ring of dynamic bearing sports limiting backward；The actuating sleeve and power input shaft are integrally formed.
9. spiral circular groove type reciprocating transmission mechanism according to claim 1, it is characterised in that: the outer circle of the actuating sleeve is set
It is equipped with axially distributed air channel.
10. a kind of reciprocating saw, the reciprocating saw is provided with the reciprocating transmission mechanism for driving cutter to move back and forth, and feature exists
In: the reciprocating transmission mechanism is the described in any item spiral circular groove type reciprocating transmission mechanisms of claim 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820167376.5U CN209059338U (en) | 2018-01-31 | 2018-01-31 | Spiral circular groove type reciprocating transmission mechanism and reciprocating saw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820167376.5U CN209059338U (en) | 2018-01-31 | 2018-01-31 | Spiral circular groove type reciprocating transmission mechanism and reciprocating saw |
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| Publication Number | Publication Date |
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| CN209059338U true CN209059338U (en) | 2019-07-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820167376.5U Active CN209059338U (en) | 2018-01-31 | 2018-01-31 | Spiral circular groove type reciprocating transmission mechanism and reciprocating saw |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110919106A (en) * | 2020-02-12 | 2020-03-27 | 北京罗森博特科技有限公司 | Cutting device for tail end of manipulator and manipulator |
| CN113295061A (en) * | 2021-06-16 | 2021-08-24 | 上海汉未科技有限公司 | Missile-borne electronic actuator |
| WO2024008149A1 (en) * | 2022-07-06 | 2024-01-11 | 浙江千机智能科技有限公司 | Reciprocating transmission mechanism and power apparatus |
-
2018
- 2018-01-31 CN CN201820167376.5U patent/CN209059338U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110919106A (en) * | 2020-02-12 | 2020-03-27 | 北京罗森博特科技有限公司 | Cutting device for tail end of manipulator and manipulator |
| CN110919106B (en) * | 2020-02-12 | 2020-06-19 | 北京罗森博特科技有限公司 | Cutting device for tail end of manipulator and manipulator |
| CN113295061A (en) * | 2021-06-16 | 2021-08-24 | 上海汉未科技有限公司 | Missile-borne electronic actuator |
| WO2024008149A1 (en) * | 2022-07-06 | 2024-01-11 | 浙江千机智能科技有限公司 | Reciprocating transmission mechanism and power apparatus |
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