CN204737693U - Bidirectional scalability fork - Google Patents

Bidirectional scalability fork Download PDF

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Publication number
CN204737693U
CN204737693U CN201520467583.9U CN201520467583U CN204737693U CN 204737693 U CN204737693 U CN 204737693U CN 201520467583 U CN201520467583 U CN 201520467583U CN 204737693 U CN204737693 U CN 204737693U
Authority
CN
China
Prior art keywords
chain
pedestal
fork
tension wheel
messenger chain
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201520467583.9U
Other languages
Chinese (zh)
Inventor
毕玉玲
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Xinyu Baiheli Electromechanical Technology Co Ltd
Original Assignee
Xinyu Baiheli Electromechanical Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Xinyu Baiheli Electromechanical Technology Co Ltd filed Critical Xinyu Baiheli Electromechanical Technology Co Ltd
Priority to CN201520467583.9U priority Critical patent/CN204737693U/en
Application granted granted Critical
Publication of CN204737693U publication Critical patent/CN204737693U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a bidirectional scalability fork, including the fork body (4), base (1), chain rack (6), driving chain (3), sprocket (7), left take -up pulley (2), right take -up pulley (5), hold in the palm rail (8), be provided with straight line track on base (1), the fork body (4) but slidable mounting on the track of base (1), pull chain rack (6) of installing on the fork body (4) through driving chain (3) and make the guide rail two -way linear motion of the fork body (4) along the base (1) on. Can reduce the wearing and tearing of driving chain, it is more reliable also to enable driving chain and chain rack toothing.

Description

A kind of bi-directional expansion pallet fork
Technical field
The present invention relates to a kind of retractable fork.
Background technology
Existing retractable fork is primarily of rack-and-gear, cylinder or hydraulic oil cylinder driving etc., the distance of stretch out and draw back of pallet fork all can not exceed the length of the kinematic mechanism such as tooth bar or cylinder body itself, in order to increase distance of stretch out and draw back, and the multistage kinematic mechanism of general employing, but multistage kinematic mechanism motion is discontinuous, complex structure.
Summary of the invention
It is simple that technical matters to be solved by this invention is to provide a kind of structure, the bi-directional expansion pallet fork that distance of stretch out and draw back is long.
Technical scheme of the present invention is: a kind of bi-directional expansion pallet fork, comprise fork body, pedestal, chain tooth bar, messenger chain, sprocket wheel, axle drive shaft, left tension wheel, right tension wheel, holder rail, left limit block and right limit block, described pedestal is provided with rectilinear orbit, pallet fork is slidably arranged on the track of pedestal, sprocket wheel is arranged on pedestal bottom by axle drive shaft, left tension wheel is arranged on the left end of pedestal, right tension wheel is arranged on the right-hand member of pedestal, messenger chain is by chain wheel drive and by left tension wheel and right tension wheel tensioning, messenger chain tensioning between left tension wheel and right tension wheel be in line and with the parallel track be arranged on pedestal, chain tooth bar is fixedly mounted on to be pitched on body and engages with messenger chain, holder rail is slidably arranged on fork body, holder rail can hold messenger chain, prevent messenger chain from deviating from from the teeth groove of chain tooth bar, make messenger chain and chain tooth bar positive engagement, left limit block is arranged on the left end of pedestal, for holding in the palm the left limit of rail, right limit block is arranged on the right-hand member of pedestal, for holding in the palm the right limit of rail.
The preferred double messenger chain of described messenger chain.
The invention also discloses a kind of two fork body pallet fork, combined by two above-mentioned bi-directional expansion pallet forks, the axle drive shaft of two bi-directional expansion pallet forks is linked together by coupler.
Bi-directional expansion pallet fork of the present invention is work like this: when fork body needs to left movement, chain wheel drive messenger chain runs left, messenger chain drags the chain tooth bar be arranged on fork body makes fork body along the straight-line motion left of the guide rail on pedestal, under the effect of holder rail, chain tooth bar and messenger chain keep engaging until the right-hand member of chain tooth bar move to the top of left tension wheel, see Fig. 5, now for fork body is to the limit of left movement; When fork body needs to run to the right, chain wheel drive messenger chain runs to the right, messenger chain drags the chain tooth bar be arranged on fork body makes fork body along the straight-line motion to the right of the guide rail on pedestal, under the effect of holder rail, chain tooth bar and messenger chain keep engaging until the left end of chain tooth bar moves to the top of right tension wheel, see Fig. 6, now for pitching the limit that body moves right.
Bi-directional expansion pallet fork of the present invention drags by messenger chain the chain tooth bar be arranged on fork body makes fork body along the guide rail straight-line motion on pedestal, fork body moves to the top of left tension wheel to the right-hand member that the end position of left movement is chain tooth bar, the end position that moves right of fork body is the top that the left end of chain tooth bar moves to right tension wheel, the total move distance of fork body is the length that the width between centers of two tension wheels adds chain tooth bar, has the advantage that move distance is long; In addition, because holder rail is slidably arranged on fork body, holder rail is followed messenger chain and is together moved between left limit block and right limit block, and there is no relative motion between messenger chain, when only having arrival left limit block or right limit block, just there is relative motion between holder rail and messenger chain, the wearing and tearing of messenger chain can be reduced like this, messenger chain also can be made to engage more reliable with chain tooth bar.
Accompanying drawing explanation
Fig. 1 is the constructional drawing of a kind of bi-directional expansion pallet fork of the present invention embodiment.
Fig. 2 is the cutaway view along A-A line in Fig. 1.
Fig. 3 is the left view of Fig. 1.
Fig. 4 is the cutaway view along B-B line in Fig. 3.
Fig. 5 is the schematic diagram that the fork body of bi-directional expansion pallet fork of the present invention moves to left-limit.
Fig. 6 is the schematic diagram that the fork body of bi-directional expansion pallet fork of the present invention moves to limit on the right-right-hand limit.
Fig. 7 is the constructional drawing of a kind of two fork body pallet fork embodiment of the present invention.
In figure, each Reference numeral is: 1, pedestal; 2, left tension wheel; 3, messenger chain; 4, body is pitched; 5, right tension wheel; 6, chain tooth bar; 7, sprocket wheel; 8, rail is held in the palm; 9, protruding rail; 10, recessed rail; 11, roller; 12, guide groove; 13, left limit block; 14, right limit block; 15, axle drive shaft; 16, coupler.
Detailed description of the invention
Below in conjunction with drawings and Examples, the invention will be further described, but embodiment is not construed as limiting the invention.
Fig. 1 to Fig. 4 shows the embodiment of a kind of bi-directional expansion pallet fork of the present invention, comprise fork body 4, pedestal 1, chain tooth bar 6, messenger chain 3, sprocket wheel 7, axle drive shaft 15, left tension wheel 2, right tension wheel 5, holder rail 8, left limit block 13, right limit block 14, the both sides of pedestal 1 are provided with the recessed rail 10 of straight line, fork body 4 is slidably arranged on the recessed rail 10 of pedestal by the protruding rail 9 being arranged on both sides, sprocket wheel 7 is arranged on pedestal 1 bottom by axle drive shaft 15, left tension wheel 2 is arranged on the left end of pedestal 1, right tension wheel 5 is arranged on the right-hand member of pedestal 1, messenger chain 3 is double messenger chains, messenger chain 3 is driven by sprocket wheel 7 and by left tension wheel 2 and right tension wheel 5 tensioning, messenger chain 3 tensioning between left tension wheel 2 and right tension wheel 5 is in line and parallel with the recessed rail 10 be arranged on pedestal 1, chain tooth bar 6 is fixedly mounted on to be pitched on body 4 and engages with messenger chain 3, holder rail 8 both sides are provided with roller 11, holder rail 8 is arranged on by roller 11 on the guide groove 12 of fork body 4 both sides, holder rail 8 can hold messenger chain 3, prevent messenger chain 3 from deviating from from the teeth groove of chain tooth bar 6, make messenger chain 3 and chain tooth bar 6 positive engagement, left limit block 13 is arranged on the left end of pedestal 1, for holding in the palm the left limit of rail 8, right limit block 14 is arranged on the right-hand member of pedestal 1, for holding in the palm the right limit of rail 8.
Fig. 7 shows the embodiment of a kind of two fork body pallet fork of the present invention, is made up of, is linked together between the axle drive shaft 15 of two bi-directional expansion pallet forks by coupler 16 two above-mentioned bi-directional expansion pallet forks.

Claims (3)

1. a bi-directional expansion pallet fork, it is characterized in that: described bi-directional expansion pallet fork comprises fork body, pedestal, chain tooth bar, messenger chain, sprocket wheel, axle drive shaft, left tension wheel, right tension wheel, holder rail, left limit block, right limit block, pedestal is provided with rectilinear orbit, fork body is slidably arranged on the track of pedestal, sprocket wheel is arranged on pedestal bottom by axle drive shaft, left tension wheel is arranged on the left end of pedestal, right tension wheel is arranged on the right-hand member of pedestal, messenger chain is by chain wheel drive and by left tension wheel and right tension wheel tensioning, messenger chain tensioning between left tension wheel and right tension wheel be in line and with the parallel track be arranged on pedestal, chain tooth bar is fixedly mounted on to be pitched on body and engages with messenger chain, holder rail is slidably arranged on fork body, holder rail can hold messenger chain, prevent messenger chain from deviating from from the teeth groove of chain tooth bar, make messenger chain and chain tooth bar positive engagement, left limit block is arranged on the left end of pedestal, for holding in the palm the left limit of rail, right limit block is arranged on the right-hand member of pedestal, for holding in the palm the right limit of rail.
2. bi-directional expansion pallet fork according to claim 1, is characterized in that: described messenger chain is double messenger chain.
3. a two fork body pallet fork, is characterized in that: described two fork body pallet fork is combined by two bi-directional expansion pallet forks according to claim 1, and the axle drive shaft of two bi-directional expansion pallet forks is linked together by coupler.
CN201520467583.9U 2015-07-03 2015-07-03 Bidirectional scalability fork Expired - Fee Related CN204737693U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520467583.9U CN204737693U (en) 2015-07-03 2015-07-03 Bidirectional scalability fork

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520467583.9U CN204737693U (en) 2015-07-03 2015-07-03 Bidirectional scalability fork

Publications (1)

Publication Number Publication Date
CN204737693U true CN204737693U (en) 2015-11-04

Family

ID=54419438

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201520467583.9U Expired - Fee Related CN204737693U (en) 2015-07-03 2015-07-03 Bidirectional scalability fork

Country Status (1)

Country Link
CN (1) CN204737693U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104909308A (en) * 2015-07-03 2015-09-16 新余市百合力机电技术有限公司 Bidirectional telescoping fork
CN106241666A (en) * 2016-08-26 2016-12-21 重庆嘉腾机器人自动化有限公司 Two-way stacking AGV

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104909308A (en) * 2015-07-03 2015-09-16 新余市百合力机电技术有限公司 Bidirectional telescoping fork
CN104909308B (en) * 2015-07-03 2018-11-16 洪真真 A kind of bi-directional expansion pallet fork
CN106241666A (en) * 2016-08-26 2016-12-21 重庆嘉腾机器人自动化有限公司 Two-way stacking AGV

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20151104

Termination date: 20160703

CF01 Termination of patent right due to non-payment of annual fee