CN207608789U - Scraper plate conveying system tensioning apparatus, scraper plate conveying system and its paver - Google Patents
Scraper plate conveying system tensioning apparatus, scraper plate conveying system and its paver Download PDFInfo
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- CN207608789U CN207608789U CN201721385581.0U CN201721385581U CN207608789U CN 207608789 U CN207608789 U CN 207608789U CN 201721385581 U CN201721385581 U CN 201721385581U CN 207608789 U CN207608789 U CN 207608789U
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- tensioning
- conveying system
- scraper plate
- type shoe
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Abstract
The utility model scraper plate conveying system tensioning apparatus, scraper plate conveying system and its paver, it is related to a kind of scraper plate conveying system tensioning apparatus, including guide type shoe, the tensioning swivel nut of the length direction setting of the vertical guide type shoe, with the tensioning screw of tensioning swivel nut screw-thread fit, and the tensioning wheel mounted on guide type shoe both sides；It is tensioned unthreaded hole clearance fit of the swivel nut axial limiting on guide type shoe and with guide type shoe, the head of tensioning screw is pressed on vehicle frame back end beam, guide type shoe is slidably disposed on vehicle frame support seat, guide type shoe bottom is provided with guide runner, and the both sides and the side clearance of vehicle frame support seat of guide runner coordinate.Using single screw rod list guide runner structure, reasonably solve the long problem not easy to remove of tensioning screw of rear-mounted tensioning apparatus, solve the problems, such as that tensioning screw easily deforms under alternating bending stress effect simultaneously, the adaptability for effectively raising tensioning apparatus improves the conveying efficiency of scraper plate conveying system.
Description
Technical field
The utility model belongs to Pavement Construction Equipment technical field, and in particular to a kind of scraper plate conveying system tensioning dress
It sets, scraper plate conveying system and its paver.
Background technology
Paver is a kind of common Pavement Construction Equipment, is mainly used for road base layer knead dough layer a variety of materials and paves work
Industry.Scraper plate conveying system is the critical component for ensureing material circulation during construction with paving machine, it mainly by scraper driving device,
The compositions such as paddled conveyor chain, scraper plate tensioning apparatus, scraper bottom plate and backplate assembly.The strainer of scraper plate conveying system plays
The effect of tensioning and guiding to paddled conveyor chain item.
Scraper plate tensioning apparatus is the important component of scraper plate conveying system, there is screw tensioning apparatus and cylinder type tensioning
Device.The highly reliable application of screw tensioning apparatus is the most universal, is commonly divided into forward type tensioning and rear-mounted tensioning.Fig. 1
Show that tensioning apparatus when screw rod is preposition, i.e. tensioning screw A are arranged in 602 side of vehicle frame front beam, relative frame front beam
Tensioning screw is adjusted and realizes that flight chain is elastic, is usually adjusted on front side of vehicle frame front beam with spanner, space is big
It is easily operated, however the easy attachment pitch in outside that one end of tensioning screw is exposed to vehicle frame is difficult to clean up.Fig. 2 shows screw rods
Tensioning apparatus when postposition, i.e. tensioning screw A are arranged in the rear side of vehicle frame front beam 602, relative to vehicle frame back end beam 601 to opening
Tight screw rod, which is adjusted, realizes that flight chain is elastic, after normally open front shroud, is adjusted on front side of tensioning shaft D with spanner,
This arrangement ensure that the cleaning of screw rod, is more highly preferred under the premise of operating space is enough.
In addition, tensioning apparatus in the prior art all uses the double guide block structures of twin-screw.Wherein, patent
CN204212031U and CN202245121U is the double guide pad tensioning apparatus of forward type twin-screw, and structure is as shown in Figure 1, tensioning
Screw rod A and side guide pad B, middle guide pad C or so arrange that this structural stability is good and is easy to tensioning operation, the disadvantage is that tensioning
Screw rod A, which is exposed to outside vehicle frame, is easy the attachment bad cleaning of pitch, and for the requirement on machining accuracy of vehicle frame height；Patent
CN102837935A discloses a kind of double guide pad tensioning apparatus of rear-mounted twin-screw, and structure is as shown in Fig. 2, double guide pads are led
It being tensioned and supports to twin-screw, structural stability is good, and tensioning screw A is arranged under front shroud and can ensure the cleaning of screw rod, and
The machining accuracy problem for considering vehicle frame has installed adjusting nut block E, but tensioning screw A additional in screw rod at vehicle frame back end beam
It also to be penetrated in vehicle frame back end beam 601 behind the holes tensioning shaft D, tensioning screw A length is long, need to be before tensioning shaft D and vehicle frame
Otherwise it is difficult onboard to dismount screw rod, and double nut block acts on play branch simultaneously that prodigious operating space is reserved between end carriage 602
The function of support, screw thread tensioning and gap adjustment, machining accuracy is big, and installation requirement is high.Using of the double guide block structures of twin-screw
Tight device, structure is reliable and stable, the disadvantage is that, it is high to vehicle frame requirement on machining accuracy, and two tensioning screw rates of tension are inconsistent causes
Pulling force suffered by the flight chain of left and right is different, causes front and back sprocket wheel biasing to aggravate between guide pad and vehicle frame side plate 604, chain and sprocket wheel
Between abrasion, and chain guard size can not accomplish most narrow in being limited by the size of middle guide pad, and it is defeated to affect scraper plate conveying system
Expect efficiency, exacerbates the accumulation of mixture nearby of intermediate backplate and longitudinal band-like isolation.
Tensioning apparatus can be tensioned and be oriented to flight chain, be opened to flight chain by tensioning screw realization
Tightly, guide pad realizes the guiding to flight chain.The premise of the steady high-efficiency operation of flight chain be to try to ensure drive sprocket and
Directive wheel does not bias, usually by limiting the gap value in side guide pad B and vehicle frame side plate 604 and two between guide pad C
Ensure, when gap value is excessive, drive sprocket misplaces with directive wheel, and chain easily gets stuck, and causes the abrasion of chain and sprocket wheel,
Under the effect of long-time alternating bending stress fatigue deformation may occur for tensioning screw A, when gap is too small, it is ensured that tensioning screw
Normally penetrate vehicle frame hole, should just improve vehicle frame hole to limit contact surface size machining accuracy.
Invention content
The utility model provides a kind of scraper plate conveying system tensioning to solve technical problem present in known technology
The tensioning device structure of device, scraper plate conveying system and its paver, the machine scraper conveying system that paves is simple, compact, can have
Effect improves the working efficiency of scraper plate conveying system.
The utility model is adopted the technical scheme that solve technical problem present in known technology：
The length direction of a kind of scraper plate conveying system tensioning apparatus, including guide type shoe, the vertical guide type shoe is set
The tensioning swivel nut set, the tensioning screw with the tensioning swivel nut screw-thread fit, and the tensioning mounted on the guide type shoe both sides
Wheel；Unthreaded hole clearance fit of the tensioning swivel nut axial limiting on the guide type shoe and with the guide type shoe, described
The head of tight screw rod is pressed on vehicle frame back end beam.
The guide type shoe is slidably disposed on vehicle frame support seat, and the guide type shoe bottom is provided with guide runner,
The both sides of the guide runner and the side clearance of vehicle frame support seat coordinate.
The outer axial face of the tensioning swivel nut, which is equipped with, will be tensioned first backstop of the swivel nut backstop in the unthreaded hole of guide type shoe
Step and it will be tensioned second catching step of the swivel nut backstop on the outside of guide type shoe, the first catching step and the second catching step are equal
It is abutted with guide type shoe side.
The tensioning apparatus further includes the jam plate one for preventing tensioning swivel nut rotation, and the jam plate one is solid by clamping screw
It is scheduled on guide type shoe.
The tensioning swivel nut is that square toes are tensioned swivel nut, and the jam plate one is equipped with to be opened with the U-shaped of tensioning swivel nut clearance fit
Mouth slot.
The tensioning apparatus further includes the jam plate two for preventing tensioning screw from rotating, and the jam plate two is solid by clamping screw
It is scheduled on vehicle frame back end beam.
The tensioning screw is square toes tensioning screw, and the jam plate two is equipped with to be opened with the U-shaped of tensioning screw clearance fit
Mouth slot.
The contact face of the tensioning screw and vehicle frame back end beam is plane.
A kind of scraper plate conveying system, including motor drive assembly, drive chain, rear axle drive assembly, paddled conveyor chain item
Assembly, tensioning apparatus, floor pan assembly and backplate assembly, the tensioning apparatus are above-mentioned tensioning apparatus, the tensioning apparatus
Tensioning wheel is connect with the sprocket wheel of the rear axle drive assembly by the chain of paddled conveyor chain assembly, the bottom of the floor pan assembly
The upper surface clearance fit of plate and the guide type shoe of the tensioning apparatus, the middle chain guard and side chain guard of the backplate assembly support
It is pressed on bottom plate, and is bolted on vehicle frame.
A kind of paver, including scraper plate conveying system, the scraper plate conveying system are above-mentioned scraper plate conveying system.
The utility model has the advantages and positive effects of：
1, the tensioning apparatus of the utility model realizes tensioning apparatus by being tensioned the screw-thread fit of swivel nut and tensioning screw
Tensioning, reasonably solves the long problem not easy to remove of tensioning screw of rear-mounted tensioning apparatus, while solving tensioning spiral shell
The problem of bar easily deforms under alternating bending stress effect, effectively raises the adaptability of tensioning apparatus.
2, this tensioning apparatus uses single screw rod list guide runner structure, reduces the difficulty of processing and cost of vehicle frame, disappears
In addition to double-screw structure rate of tension it is inconsistent caused by abrasion between guide pad and vehicle frame, chain and sprocket wheel.It is slided using single be oriented to
Block is arranged in guide type shoe bottom so that middle chain guard can be accomplished most narrow, alleviate the buildup and mixture of middle chain guard
Longitudinal band-like isolation, while the width of material scraping plate is increased, improve the conveying efficiency of scraper plate conveying system.
3, tensioning apparatus is arranged in below front shroud, avoids pollution of the pitch to tensioning screw.
Description of the drawings
Fig. 1 is the structural schematic diagram of the double guide pad tensioning apparatus of current forward type twin-screw；
Fig. 2 is the structural schematic diagram of the double guide pad tensioning apparatus of current rear-mounted twin-screw；
Fig. 3 is the structural schematic diagram of the scraper plate conveying system tensioning apparatus of the utility model；
Fig. 4 is the structural schematic diagram of the scraper plate conveying system tensioning apparatus and vehicle frame support seat cooperation of the utility model；
Fig. 5 is the scraper plate conveying system tensioning apparatus of the utility model and the structural schematic diagram of Frame Assembling；
Fig. 6 is the scraper plate conveying system assembling structure schematic diagram of the utility model.
In figure：A- tensioning screws；The sides B- guide pad；Guide pad in C-；D- tensioning shafts；E- adjusting nut blocks；
1- tensioning apparatus, 101- guide type shoes；1001- guide runners；102- is tensioned swivel nut；The first catching steps of 1021-；
The second catching steps of 1022-；103- tensioning screws；104- jam plates one；105- jam plates two；
2- paddled conveyor chain assemblies；3- rear axle drive assembly；4- drive chains；5- motor drive assembly；
601- vehicle frame back end beams；602- vehicle frame front beams；603- vehicle frames support seat；604- vehicle frame side plates；
701- front shrouds；Chain guard in 702-；
8- bottom plates.
Specific implementation mode
For that can further appreciate that the invention, features and effects of the utility model, the following examples are hereby given, and coordinates
Detailed description are as follows for attached drawing：
Shown in Fig. 3~5, a kind of scraper plate conveying system tensioning apparatus, including guide type shoe 101, it is vertically described to lead
The tensioning swivel nut 102 being arranged to the length direction of bearing, the tensioning screw 103 with the tensioning swivel nut screw-thread fit, rotatably
Tensioning wheel 106 mounted on the guide type shoe both sides, jam plate 1 and jam plate 2 105；The guide type shoe 101 is slidably
On vehicle frame support seat 603,101 bottom of the guide type shoe is welded with guide runner 1001 for ground setting, guide runner 1001 about
Tensioning apparatus median plane is arranged symmetrically, and the both sides and the side clearance of vehicle frame support seat 603 of the guide runner 1001 coordinate, described
It is tensioned unthreaded hole clearance fit of 102 axial limiting of swivel nut on the guide type shoe 101 and with the guide type shoe 101, can be protected
The tensioning wheel 106 and the sprocket wheel of rear axle drive assembly 3 for demonstrate,proving tensioning apparatus do not bias in the horizontal direction；The tensioning screw 103
Head be pressed on vehicle frame back end beam 601；The contact face of the tensioning screw 103 and vehicle frame back end beam 601 is plane.
The outer axial face of the tensioning swivel nut 102 is equipped with will be tensioned swivel nut backstop in the unthreaded hole of guide type shoe 101 the
One catching step 1021 and swivel nut backstop will be tensioned in second catching step 1022 in the outside of guide type shoe 101, the first backstop platform
Rank 1021 and the second catching step 1022 are abutted with guide type shoe side.
The tensioning swivel nut 102 is that square toes are tensioned swivel nut, the U-shaped opening slot being arranged on the jam plate 1 and tensioning spiral shell
The square toes clearance fit of set 102, jam plate one is fixedly mounted on guide type shoe 101 by clamping screw, plays locking
The effect of tight swivel nut 102.
The tensioning screw 103 is square toes tensioning screw, the U-shaped opening slot being arranged on the jam plate 2 105 and tensioning spiral shell
Jam plate two is fixedly mounted on vehicle frame back end beam 601 by the square toes clearance fit of bar 103 by clamping screw so that tensioning spiral shell
During being rotated with the tensioning cooperation of swivel nut 102 axial movement relative to vehicle frame back end beam 601 will not occur for bar 103.
When assembly, first tensioning wheel 106 is mounted on guide type shoe 101 in advance, then in integral hoisting to vehicle frame and guiding is made to slide
Block 1001 and two vehicle frames support 603 clearance fit of seat, and tensioning swivel nut 102 is inserted into guide type shoe 101 to catching step and guiding branch
The contact of 101 sides of seat, jam plate 2 105 is mounted on vehicle frame back end beam 601 and makes the opening up of U-shaped opening slot, will be tensioned
Screw rod 103 is screwed into tensioning 102 threaded hole of swivel nut, tensioning apparatus is pushed to 601 direction of vehicle frame back end beam, by tensioning screw 103
Square toes be inserted into the U-shaped opening slot of jam plate 2 105 that 103 square toes of tensioning screw, one side plane to resist vehicle frame back end beam 601 flat
Face.When being tensioned flight chain, the square toes of tensioning swivel nut 102 are turned with spanner, tensioning screw 103 is screwed out from tensioning swivel nut 102,
103 square toes plane of tensioning screw resists 601 plane of vehicle frame back end beam, and the catching step being tensioned on swivel nut 102 pushes tensioning apparatus
Guide type shoe 101, guide runner 1001 supports in the guide groove between seat 603 in two vehicle frames and moved to rack front beam 602,
It is tensioned swivel nut, the final tensioning for realizing flight chain with one 104 locking of jam plate.
It is shown in Figure 6, a kind of scraper plate conveying system, including motor drive assembly 5, drive chain 4, rear axle drive assembly
3, paddled conveyor chain assembly 2, tensioning apparatus 1, floor pan assembly 7 and backplate assembly 8, the tensioning apparatus 1 are above-mentioned tensioning
Device, the tensioning wheel 106 of the tensioning apparatus 1 and the sprocket wheel of the rear axle drive assembly 3 pass through 2 assembly of paddled conveyor chain item
Chain has connected and composed chain drive, and usual rear axle drive assembly 3 is fixedly mounted on vehicle frame, and tensioning apparatus plays flight chain
Tensioning and guiding role, the structure of tensioning apparatus and mounting means relative to vehicle frame are to the chaindriven stationarity of scraper plate and conveying
Efficiency plays decisive role.The tensioning apparatus 1 is arranged in the lower section of the front shroud 701 of the backplate assembly, lies in two
On a vehicle frame support seat 603, the bottom surface of guide type shoe 101 contacts and opposite can slide, the bottom plate with 603 upper surface of vehicle frame support seat
The upper surface clearance fit of the bottom surface of the bottom plate 8 of assembly and the guide type shoe 101 of the tensioning apparatus opposite can simultaneously be slided, described
The middle chain guard 702 and side chain guard of backplate assembly are pressed on bottom plate 8, and are bolted on vehicle frame.
Tensioning apparatus 1 is limited in the vertical direction to be made of the bottom surface of the upper surface of vehicle frame support seat 603 and bottom plate 8
Space in.Tensioning bolt (including tensioning swivel nut 102 and tensioning screw 103) is arranged on the median plane of tensioning apparatus 1, is tensioned
Bolt is withstood on across guide type shoe 101 on vehicle frame back end beam 601, in the space that vehicle frame front beam 602 and tensioning apparatus 1 are constituted
Operation spanner, vehicle frame back end beam 601 generate pressure to tensioning bolt and tensioning apparatus are pushed to realize tensioning.
A kind of paver, including scraper plate conveying system, the scraper plate conveying system are above-mentioned scraper plate conveying system.
The above is only the preferred embodiment to the utility model, is not made in any form to the utility model
Limitation, it is every according to the technical essence of the utility model any simple modification made to the above embodiment, equivalent variations with
Modification, is all within the scope of the technical scheme of the utility model.
Claims (10)
1. a kind of scraper plate conveying system tensioning apparatus, it is characterised in that：Including guide type shoe, the length of the vertical guide type shoe
The tensioning swivel nut for spending direction setting, the tensioning screw with the tensioning swivel nut screw-thread fit, and it is mounted on the guide type shoe two
The tensioning wheel of side；The tensioning swivel nut axial limiting is matched on the guide type shoe and with the unthreaded hole gap of the guide type shoe
It closes, the head of the tensioning screw is pressed on vehicle frame back end beam.
2. scraper plate conveying system tensioning apparatus according to claim 1, it is characterised in that：The guide type shoe is slidably
On vehicle frame support seat, the guide type shoe bottom is provided with guide runner for ground setting, and both sides and the vehicle frame of the guide runner support
The side clearance cooperation of seat.
3. scraper plate conveying system tensioning apparatus according to claim 1, it is characterised in that：The outer shaft of the tensioning swivel nut
Face is equipped with the first catching step by tensioning swivel nut backstop in the unthreaded hole of guide type shoe and is being oriented to tensioning swivel nut backstop
Second catching step of support outer, the first catching step and the second catching step are abutted with guide type shoe side.
4. scraper plate conveying system tensioning apparatus according to any one of claim 1-3, it is characterised in that：The tensioning fills
It further includes jam plate one for preventing tensioning swivel nut rotation to set, and the jam plate one is fixed on by clamping screw on guide type shoe.
5. scraper plate conveying system tensioning apparatus according to claim 4, it is characterised in that：The tensioning swivel nut is square toes
It is tensioned swivel nut, the jam plate one is equipped with the U-shaped opening slot with tensioning swivel nut clearance fit.
6. scraper plate conveying system tensioning apparatus according to any one of claim 1-3, it is characterised in that：The tensioning fills
It further includes jam plate two for preventing tensioning screw from rotating to set, and the jam plate two is fixed on vehicle frame back end beam by clamping screw
On.
7. scraper plate conveying system tensioning apparatus according to claim 6, it is characterised in that：The tensioning screw is square toes
Tensioning screw, the jam plate two are equipped with the U-shaped opening slot with tensioning screw clearance fit.
8. scraper plate conveying system tensioning apparatus according to claim 1, it is characterised in that：The tensioning screw and vehicle frame
The contact face of back end beam is plane.
9. a kind of scraper plate conveying system, including motor drive assembly, drive chain, rear axle drive assembly, paddled conveyor chain item are total
At, tensioning apparatus, floor pan assembly and backplate assembly, it is characterised in that：The tensioning apparatus is any one of claim 1 to 8
The tensioning apparatus, the tensioning wheel of the tensioning apparatus and the sprocket wheel of the rear axle drive assembly are total by paddled conveyor chain item
At chain connection, the upper surface clearance fit of the guide type shoe of the bottom plate of the floor pan assembly and the tensioning apparatus is described
The middle chain guard and side chain guard of backplate assembly are pressed on bottom plate, and are bolted on vehicle frame.
10. a kind of paver, including scraper plate conveying system, it is characterised in that：The scraper plate conveying system is described in claim 9
Scraper plate conveying system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721385581.0U CN207608789U (en) | 2017-10-25 | 2017-10-25 | Scraper plate conveying system tensioning apparatus, scraper plate conveying system and its paver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721385581.0U CN207608789U (en) | 2017-10-25 | 2017-10-25 | Scraper plate conveying system tensioning apparatus, scraper plate conveying system and its paver |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207608789U true CN207608789U (en) | 2018-07-13 |
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ID=62793882
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721385581.0U Active CN207608789U (en) | 2017-10-25 | 2017-10-25 | Scraper plate conveying system tensioning apparatus, scraper plate conveying system and its paver |
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| CN (1) | CN207608789U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107805996A (en) * | 2017-10-25 | 2018-03-16 | 天津工程机械研究院有限公司 | Scraper plate conveying system tensioning apparatus, scraper plate conveying system and its paver |
-
2017
- 2017-10-25 CN CN201721385581.0U patent/CN207608789U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107805996A (en) * | 2017-10-25 | 2018-03-16 | 天津工程机械研究院有限公司 | Scraper plate conveying system tensioning apparatus, scraper plate conveying system and its paver |
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