CN110983877A - Rail stone construction equipment - Google Patents
Rail stone construction equipment Download PDFInfo
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- CN110983877A CN110983877A CN201911163138.2A CN201911163138A CN110983877A CN 110983877 A CN110983877 A CN 110983877A CN 201911163138 A CN201911163138 A CN 201911163138A CN 110983877 A CN110983877 A CN 110983877A
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- gear
- scraper
- blocks
- fixed shaft
- connecting rod
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B27/00—Placing, renewing, working, cleaning, or taking-up the ballast, with or without concurrent work on the track; Devices therefor; Packing sleepers
- E01B27/02—Placing the ballast; Making ballastway; Redistributing ballasting material; Machines or devices therefor; Levelling means
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B27/00—Placing, renewing, working, cleaning, or taking-up the ballast, with or without concurrent work on the track; Devices therefor; Packing sleepers
- E01B27/02—Placing the ballast; Making ballastway; Redistributing ballasting material; Machines or devices therefor; Levelling means
- E01B27/023—Spreading, levelling or redistributing ballast already placed
- E01B27/026—Spreading, levelling or redistributing ballast already placed by means of driven tools, e.g. rotating brooms or digging devices
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Processing Of Stones Or Stones Resemblance Materials (AREA)
Abstract
The invention belongs to the technical field of stone construction, and particularly relates to rail stone construction equipment which comprises a construction vehicle and a scraper, wherein the rail stone construction equipment disclosed by the invention controls the extension of a scraping block by adjusting the rotating angles of a third connecting rod and a front arm frame, so that stones which are not scraped by the scraper on the lower side of a rail are scraped; compared with the method described in the background, the method is simpler to operate; the scraping strips do not need to be specially lifted and rotated by 90 degrees and then inserted into the lower sides of two rails to scrape off the un-scraped stones of the scrapers on the lower sides of the rails; the invention designs the crank-slider mechanism, on one hand, the third connecting rod and the front arm frame can swing in a small amplitude in the specified scraper working angle switching process, on the other hand, when the third connecting rod and the front arm frame swing in a large amplitude, the transmission mechanism on the scraper cannot generate the phenomena of interference and damage, and the reciprocating motion of the slider, namely the reciprocating motion of the scraper block, is generated.
Description
Technical Field
The invention belongs to the technical field of stone construction, and particularly relates to rail stone construction equipment.
Background
With the continuous development of the rail technology in China, the rails are mainly divided into high-speed rail, bullet train rail, train rail and subway rail.
The rails are laid on the ground because the contact area between the rails and the wheels of the train is small, but the train is very heavy, and therefore the pressure to which the rails are subjected is considerably large, and therefore, sleepers and stones must be laid under the rails to disperse the weight of the train and prevent the rails from sinking. In addition, when a train passes through a rail at a high speed, noise and high heat are generated, and two other important tasks of crushed stones are noise absorption and heat absorption.
For stone paving, an auxiliary paving device for an excavating vehicle is available, firstly, a scraper is arranged on the excavating vehicle to scrape stones between two rails and on two sides of the two rails, then a scraping strip is grabbed by a grabbing shovel to be placed on the lower side of the rails at an angle parallel to the direction of the rails, then the grabbing shovel is rotated to adjust the scraping strip to be perpendicular to the direction of the rails, and then the stones on the lower side of the rails which are not scraped by the scraper are scraped; however, this method is cumbersome to operate; therefore, it is necessary to design a stone construction device which can scrape all stones on the lower side of the rail and is simple to operate.
The invention designs a rail stone construction device to solve the problems.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention discloses a rail stone construction device which is realized by adopting the following technical scheme.
A rail stone construction device comprises a construction vehicle and a scraper, wherein the front end of a front arm support of the construction vehicle is provided with a four-bar linkage consisting of a first connecting bar, a second connecting bar, a third connecting bar and the front arm support, one end of the first connecting bar is arranged on the front arm support in a hinged mode, one end of the second connecting bar is hinged with the other end of the first connecting bar, one end of the third connecting bar is arranged on the front arm support in a hinged mode, and the other end of the third connecting bar is hinged with the other end of the second connecting bar; the front arm support is also provided with a hydraulic rod for controlling the four-bar mechanism to work, one end of the hydraulic rod is arranged on the front arm support in a hinged mode, and the other end of the hydraulic rod is fixedly connected with a hinged shaft of the first connecting rod and the second connecting rod; the scraper is provided with two symmetrically distributed square openings and is fixedly arranged on the third connecting rod through the mounting frame; the method is characterized in that: the lower side of the front end of the scraper is symmetrically provided with two scraping blocks in a sliding fit manner, and the two scraping blocks are correspondingly matched with the lower sides of two square openings formed in the scraper one by one; the front end of the scraping plate is provided with a transmission mechanism, the transmission mechanism utilizes the swinging of the third connecting rod relative to the front arm frame to generate relative displacement, and the transmission controls the sliding of the two scraping blocks.
The construction vehicle in the construction equipment designed by the invention has the same working principle as the front arm support and the rear arm support in the traditional excavator, the chemical energy of diesel oil is converted into mechanical energy through the diesel engine, the mechanical energy is converted into hydraulic energy through the hydraulic plunger pump, the hydraulic energy is distributed to each execution element (a hydraulic oil cylinder, a rotary motor + a speed reducer, a walking motor + a speed reducer) through the hydraulic system, and the hydraulic energy is converted into the mechanical energy through each execution element, so that the movement of a working device, the rotary movement of a rotary platform and the walking movement of a whole machine are realized. The included angle between the front and rear arm supports can be adjusted by an auxiliary connecting rod or a hydraulic cylinder, and although the structure operation is complicated, the included angle between the upper and lower movable arms can be adjusted greatly at any time in the operation of the excavator, so that the operation performance of the excavator is improved.
When the hydraulic rod drives the four-bar mechanism to work, the third connecting rod can swing relative to the front arm frame.
As a further improvement of the technology, a fixed pin shaft of the third connecting rod hinged with the front arm frame is fixed on the front arm frame.
The transmission mechanism comprises a first gear, a chain, a second gear, a third gear, a first chain wheel, a second chain wheel, a fourth gear, a sixth gear and a fifth gear, wherein the first gear is fixedly arranged on the fixed pin shaft; the second fixed shaft is arranged on the third connecting rod in a rotating fit manner, the fourth gear is fixedly arranged at one end of the second fixed shaft, the first chain wheel is fixedly arranged at the other end of the second fixed shaft, the first fixed shaft is arranged on the third connecting rod in a rotating fit manner, the second chain wheel is fixedly arranged at one end of the first fixed shaft, and the second chain wheel is connected with the first chain wheel through a chain; the third gear is fixedly arranged at the other end of the first fixed shaft, the fourth fixed shaft is fixedly arranged at the front side of the scraper plate through a fixed support, the second gear is rotatably arranged on the fourth fixed shaft, and the second gear is meshed with the third gear; the fifth gear is rotatably arranged on the front side of the scraper through a third fixed shaft and is meshed with the second gear; the fifth fixed shaft is arranged on the front side of the scraping plate in a rotating fit mode, the sixth gear is fixedly arranged at one end of the fifth fixed shaft, and the sixth gear is meshed with the fifth gear; the fifth fixed shaft controls the two scraping blocks to slide through a crank sliding block mechanism.
When the third connecting rod swings relative to the front arm support, a fourth gear installed on the third connecting rod rotates under the driving of a first gear fixedly installed on a fixed pin shaft, the fourth gear rotates to drive a second fixed shaft to rotate, the second fixed shaft rotates to drive a first chain wheel to rotate, the first chain wheel rotates to drive a second chain wheel to rotate through a chain, the second chain wheel rotates to drive the first fixed shaft to rotate, the first fixed shaft rotates to drive a third gear to rotate, the third gear rotates to drive the second gear to rotate, the second gear rotates to drive a fifth gear to rotate, the fifth gear rotates to drive a sixth gear to rotate, and the sixth gear rotates to drive the fifth fixed shaft to rotate.
The diameter of the first gear is larger than that of the fourth gear, and the diameters of the fourth gear, the second gear, the third gear, the fourth gear, the fifth gear and the sixth gear are equal. The diameter of the first gear is larger than that of the fourth gear, and the reason is that under the condition that the third connecting rod swings for a certain angle relative to the front arm frame, the crank needs to swing for 180 degrees, so that the two scraping blocks can be just moved to be matched with the lower ends of the two square openings on the scraping plate, and the channels of the two square openings are blocked.
As a further improvement of the technology, the crank-slider mechanism comprises a rocker, a connecting block, a crank, a first connecting plate, a second connecting plate and a slider, wherein one end of the crank is fixedly arranged at the other end of the fifth fixed shaft, and one end of the rocker is arranged at the other end of the crank in a rotating fit manner; the two sliding blocks are arranged on the front side of the scraping plate in a vertically distributed manner through sliding fit, and one of the two sliding blocks is connected with the other end of the rocker through rotating fit; the two sliding blocks are respectively provided with a first connecting plate and a second connecting plate in a rotating fit mode, the first connecting plates and the second connecting plates positioned on the same sliding block are symmetrically distributed in a splayed mode, one ends, far away from the sliding block, of the two first connecting plates arranged on the two sliding blocks are hinged with each other through a driving shaft, and one ends, far away from the sliding block, of the two second connecting plates arranged on the two sliding blocks are hinged with each other through a driving shaft; two connecting blocks are symmetrically installed on the two driving shafts, and the two scraping blocks are symmetrically and fixedly installed on the two connecting blocks.
The invention designs a crank slide block and aims to realize the motion of a scraping block through a first connecting plate and a second connecting plate, wherein the crank slide block comprises a crank slide block body, a first connecting plate and a second connecting plate, and the crank slide block body comprises a crank slide block body, a first connecting plate and a second connecting plate: the working state of the scraper is divided into two states of the scraper block not extending out and the scraper block extending out, but in order to solve the complex operation problem proposed in the background, the extension of the scraper block is realized by the swinging of a third connecting rod and a front arm frame, because the movement approaching horizontal movement when the scraper works scrapes or scrapes the stone, the positions of the two working states of the scraper are most suitable for approaching vertical, the angle change of the third connecting rod and the front arm frame is very small by the switching of the two working states of the scraper, that is to say, the switching of the two working states of the scraper only needs the third connecting rod and the front arm frame to rotate a very small angle, but because the four connecting rod and front arm frame structure of the traditional excavator is adopted, the rotation amplitude of the scraper under the action of the third connecting rod and a hydraulic rod is very large, the rotation amplitude of the third connecting rod and the front arm frame is very large and approaches 180 degrees, a very large driving angle exists here, while the required drive angle is small. If the limit for the swinging of the third connecting rod and the front arm frame is adopted, the universality of the third connecting rod and the front arm frame to other auxiliary equipment is reduced, so that the crank-slider mechanism is designed, on one hand, the third connecting rod and the front arm frame can swing in a small amplitude in the specified scraper working angle switching process, on the other hand, when the third connecting rod and the front arm frame swing in a large amplitude, the phenomenon of interference and damage of a transmission mechanism on the scraper cannot occur, and the reciprocating motion of the slider, namely the reciprocating motion of the scraper block, occurs. Guarantee through designing two sliders, two first connecting plates and two second connecting plates that the connecting block only receives the power along connecting block direction of motion at the slider-crank adjustment in-process, and the stability of piece operation is scraped in the reinforcing.
As a further improvement of the technology, the front side of the scraper is fixedly provided with a guide rail, and the two sliders are symmetrically arranged in the guide rail through sliding fit.
As a further improvement of the technology, two guide grooves are symmetrically formed in the inner side surface of the guide rail, two guide blocks are symmetrically arranged on two sides of the sliding block, and the two sliding blocks are arranged in the guide rail through the sliding fit of the guide blocks and the guide grooves; the corresponding sliding blocks are guided by the sliding fit of the guide blocks and the guide grooves.
As a further improvement of the technology, the front end face of the scraper blade is symmetrically provided with two trapezoidal guide grooves, one end of the scraping block is provided with a trapezoidal guide block, and the two scraping blocks are arranged on the front side of the scraper blade through the sliding fit of the trapezoidal guide blocks and the trapezoidal guide grooves; the corresponding scraping block is guided by the sliding fit of the trapezoidal guide block and the trapezoidal guide groove.
As a further improvement of this technique, above-mentioned adjusting gear passes through the eighth fixed axle and installs in the guide rail, and two pinion racks are installed on two sliders symmetrically, and two pinion racks all mesh with adjusting gear, and two pinion racks are located adjusting gear's both sides. According to the invention, the two sliding blocks keep synchronous sliding in the moving process through the transmission of the two toothed plates and the adjusting gear, namely, the expansion and the retraction of the two first connecting plates and the two second connecting plates keep synchronous.
As a further improvement of the present technology, the scraper is mounted on the mounting bracket by the cooperation of the screw and the nut, and the mounting bracket is fixedly mounted on the third link by welding. The squeegee and the mounting bracket are removed together when the squeegee is replaced.
As a further improvement of the present technology, the scraper is fixedly mounted on the mounting bracket by welding, and the mounting bracket is mounted on the third link by the cooperation of the screw and the nut.
According to the construction equipment designed by the invention, when the scraper is in a vertical alignment state, two scraping blocks arranged on the scraper are distributed in a staggered manner at two square openings on the scraper, and the hinged end of the crank and the rocker is at the highest point.
Compared with the traditional stone construction technology, the beneficial effects of the design of the invention are as follows:
1. according to the rail stone construction equipment designed by the invention, the extension of the scraping block is controlled by adjusting the rotation angles of the third connecting rod and the front arm frame, so that stones which are not scraped by the scraper at the lower side of the rail are scraped; compared with the method described in the background, the method is simpler to operate; the scraping strips do not need to be specially hung and rotated by 90 degrees and then inserted into the lower sides of two rails to scrape off the stones which are not scraped by the scraping plates on the lower sides of the rails.
2. The invention designs the crank-slider mechanism, on one hand, the third connecting rod and the front arm frame can swing in a small amplitude in the specified scraper working angle switching process, on the other hand, when the third connecting rod and the front arm frame swing in a large amplitude, the transmission mechanism on the scraper cannot generate the phenomena of interference and damage, and the reciprocating motion of the slider, namely the reciprocating motion of the scraper block, is generated.
3. Guarantee through designing two sliders, two first connecting plates and two second connecting plates that the connecting block only receives the power along connecting block direction of motion at the slider-crank adjustment in-process, and the stability of piece operation is scraped in the reinforcing.
Drawings
Fig. 1 is an external view of an entire part.
Fig. 2 is a schematic view of the overall component distribution.
Fig. 3 is a first gear mounting schematic.
Fig. 4 is a chain installation schematic.
FIG. 5 is a schematic view of the blade installation.
Fig. 6 is a schematic diagram of the transmission arrangement.
Fig. 7 is a schematic diagram of the transmission mechanism.
Fig. 8 is a schematic view of the first and second connector plates being installed.
Fig. 9 is a schematic view of a slider installation.
Number designation in the figures: 1. a front arm support; 2. a hydraulic lever; 3. a first link; 4. a second link; 5. a third link; 6. a squeegee; 7. a transmission mechanism; 8. scraping the block; 9. fixing a pin shaft; 10. a first gear; 11. a chain; 12. a mounting frame; 13. a second gear; 14. a third gear; 15. a first fixed shaft; 16. a first chain wheel; 17. a second chain wheel; 18. a second fixed shaft; 19. a fourth gear; 20. a square opening; 21. a trapezoidal guide groove; 22. an adjusting gear; 23. a fifth gear; 24. a rocker; 25. a guide rail; 26. connecting blocks; 27. a third fixed shaft; 28. a fourth fixed shaft; 29. fixing and supporting; 30. a fifth fixed shaft; 31. a sixth gear; 33. a trapezoidal guide block; 34. a drive shaft; 35. a crank; 36. a sixth fixed shaft; 37. a seventh fixed shaft; 38. a first connecting plate; 40. a second connecting plate; 41. a slider; 42. an eighth fixed shaft; 43. a toothed plate; 44. a guide groove; 45. and a guide block.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples or figures are illustrative of the present invention and are not intended to limit the scope of the present invention.
As shown in fig. 1 and 2, the construction vehicle comprises a construction vehicle and a scraper 6, wherein a four-bar linkage composed of a first connecting bar 3, a second connecting bar 4, a third connecting bar 5 and a front arm frame 1 is arranged at the front end of the front arm frame 1 of the construction vehicle, as shown in fig. 3, one end of the first connecting bar 3 is installed on the front arm frame 1 in a hinged manner, one end of the second connecting bar 4 is hinged with the other end of the first connecting bar 3, one end of the third connecting bar 5 is installed on the front arm frame 1 in a hinged manner, and the other end of the third connecting bar 5 is hinged with the other end of the second connecting bar 4; the front arm support 1 is also provided with a hydraulic rod 2 for controlling the four-bar linkage to work, one end of the hydraulic rod 2 is arranged on the front arm support 1 in a hinged manner, and the other end of the hydraulic rod 2 is fixedly connected with hinged shafts of the first connecting rod 3 and the second connecting rod 4; as shown in fig. 5 and 6, the scraper 6 has two symmetrically distributed square openings 20, and as shown in fig. 1 and 5, the scraper 6 is fixedly mounted on the third link 5 through the mounting frame 12; the method is characterized in that: as shown in fig. 1 and 2, two scraping blocks 8 are symmetrically installed on the lower side of the front end of the scraping plate 6 through sliding fit, and the two scraping blocks 8 are correspondingly matched with the lower sides of two square openings 20 formed in the scraping plate 6 one by one; the front end of the scraping plate 6 is provided with a transmission mechanism 7, the transmission mechanism 7 utilizes the third connecting rod 5 to swing relative to the front arm support 1 to generate relative displacement, and the two scraping blocks 8 are controlled to slide in a transmission mode.
The working principle of a construction vehicle in the construction equipment designed by the invention is the same as that of a front arm support 1 and a rear arm support in a traditional excavator, chemical energy of diesel oil is converted into mechanical energy through a diesel engine, the mechanical energy is converted into hydraulic energy through a hydraulic plunger pump, the hydraulic energy is distributed to each execution element (a hydraulic oil cylinder, a rotary motor + speed reducer, a walking motor + speed reducer) through a hydraulic system, and then the hydraulic energy is converted into mechanical energy through each execution element, so that the movement of a working device, the rotary movement of a rotary platform and the walking movement of a whole machine are realized. The included angle between the front and rear arm supports can be adjusted by an auxiliary connecting rod or a hydraulic cylinder, and although the structure operation is complicated, the included angle between the upper and lower movable arms can be adjusted greatly at any time in the operation of the excavator, so that the operation performance of the excavator is improved.
When the hydraulic rod 2 drives the four-bar mechanism to work, the third connecting rod 5 swings relative to the front arm support 1.
As shown in fig. 3, as a further improvement of the present technology, a fixed pin 9, where the third link 5 is hinged to the front arm support 1, is fixed on the front arm support 1.
As shown in fig. 7 and 8, the transmission mechanism 7 includes a first gear 10, a chain 11, a second gear 13, a third gear 14, a first chain wheel 16, a second chain wheel 17, a fourth gear 19, a sixth gear 31, and a fifth gear 23, wherein as shown in fig. 4, the first gear 10 is fixedly mounted on the fixed pin 9; the second fixed shaft 18 is installed on the third connecting rod 5 through a rotating fit, the fourth gear 19 is fixedly installed at one end of the second fixed shaft 18, the first chaining wheel 16 is fixedly installed at the other end of the second fixed shaft 18, the first fixed shaft 15 is installed on the third connecting rod 5 through a rotating fit, the second chaining wheel 17 is fixedly installed at one end of the first fixed shaft 15, and the second chaining wheel 17 is connected with the first chaining wheel 16 through the chain 11; the third gear 14 is fixedly arranged at the other end of the first fixed shaft 15, the fourth fixed shaft 28 is fixedly arranged at the front side of the scraping plate 6 through a fixed support 29, the second gear 13 is rotatably arranged on the fourth fixed shaft 28, and the second gear 13 is meshed with the third gear 14; a fifth gear 23 is rotatably installed at the front side of the squeegee 6 by a third fixed shaft 27, and the fifth gear 23 is engaged with the second gear 13; the fifth fixed shaft 30 is installed at the front side of the scraping plate 6 through a rotating fit, the sixth gear 31 is fixedly installed at one end of the fifth fixed shaft 30, and the sixth gear 31 is meshed with the fifth gear 23; the fifth fixed shaft 30 controls the sliding of the two scraping blocks 8 through a crank 35 and a slider 41 mechanism.
When the third link 5 swings relative to the front arm support 1, the fourth gear 19 mounted on the third link 5 is driven by the first gear 10 fixedly mounted on the fixed pin 9 to rotate, the fourth gear 19 rotates to drive the second fixed shaft 18 to rotate, the second fixed shaft 18 rotates to drive the first sprocket 16 to rotate, the first sprocket 16 rotates to drive the second sprocket 17 to rotate through the chain 11, the second sprocket 17 rotates to drive the first fixed shaft 15 to rotate, the first fixed shaft 15 rotates to drive the third gear 14 to rotate, the third gear 14 rotates to drive the second gear 13 to rotate, the second gear 13 rotates to drive the fifth gear 23 to rotate, the fifth gear 23 rotates to drive the sixth gear 31 to rotate, and the sixth gear 31 rotates to drive the fifth fixed shaft 30 to rotate.
The diameter of the first gear 10 is larger than that of the fourth gear 19, and the diameters of the fourth gear 19, the second gear 13, the third gear 14, the fourth gear 19, the fifth gear 23 and the sixth gear 31 are equal. The diameter of the first gear 10 designed by the invention is larger than that of the fourth gear 19, and the reason is that under the condition that the third connecting rod 5 swings for a certain angle relative to the front arm support 1, the crank 35 needs to swing for 180 degrees, so that the two scraping blocks 8 can just move to be matched with the lower ends of the two square openings 20 on the scraping plate 6, and the passages of the two square openings 20 are blocked.
As shown in fig. 7 and 8, as a further improvement of the present technology, the crank 35 and slider 41 mechanism includes a rocker 24, a connecting block 26, a crank 35, a first connecting plate 38, a second connecting plate 40, and a slider 41, wherein one end of the crank 35 is fixedly mounted on the other end of the fifth fixed shaft 30, and one end of the rocker 24 is mounted on the other end of the crank 35 through a rotation fit; the two sliding blocks 41 are arranged on the front side of the scraping plate 6 in a vertically distributed manner through sliding fit, and one sliding block 41 of the two sliding blocks 41 is connected with the other end of the rocker 24 through rotating fit; the two sliding blocks 41 are respectively provided with a first connecting plate 38 and a second connecting plate 40 in a rotating fit manner, the first connecting plate 38 and the second connecting plate 40 on the same sliding block 41 are symmetrically distributed in a splayed manner, one ends, far away from the sliding block 41, of the two first connecting plates 38 arranged on the two sliding blocks 41 are hinged with each other through a driving shaft 34, and one ends, far away from the sliding block 41, of the two second connecting plates 40 arranged on the two sliding blocks 41 are hinged with each other through a driving shaft 34; the two connecting blocks 26 are symmetrically mounted on the two drive shafts 34, and the two scraper blocks 8 are symmetrically fixedly mounted on the two connecting blocks 26.
The invention designs the crank 35 slide block 41 and realizes the purpose of the movement of the scraping block 8 through the first connecting plate 38 and the second connecting plate 40, and the purpose is as follows: the working state of the scraper 6 is divided into two states of the scraper block 8 not extending out and the scraper block 8 extending out, but in order to solve the complicated operation problem proposed in the background, the extension of the scraper block 8 is realized by the swinging of the third connecting rod 5 and the front arm support 1, because the movement of the scraper 6 approaching the horizontal movement scrapes or scrapes the stone when working, the positions of the two working states of the scraper 6 are most suitable for approaching the vertical direction, so the angle change of the third connecting rod 5 and the front arm support 1 is very small by the switching of the two working states of the scraper 6, that is, the switching of the two working states of the scraper 6 only needs the third connecting rod 5 and the front arm support 1 to rotate a very small angle, but because the structure of the four connecting rods and the front arm support 1 of the traditional excavator is adopted, the rotation amplitude of the scraper 6 under the action of the third connecting rod 5 and the hydraulic rod 2 is very large, and the rotation amplitude of the third connecting rod 5 and the front arm, close to 180 degrees, there will be a large drive angle and a small drive angle will be required. If the third connecting rod 5 and the front arm support 1 are limited in swinging, the universality of the third connecting rod 5 and the front arm support 1 to other auxiliary equipment is reduced, so that the crank 35 and the slider 41 mechanism are designed, on one hand, the third connecting rod 5 and the front arm support 1 can swing in a small amplitude in the specified working angle switching process of the scraping plate 6, on the other hand, when the third connecting rod 5 and the front arm support 1 swing in a large amplitude, the transmission mechanism 7 on the scraping plate 6 cannot generate the phenomena of interference and damage, and the reciprocating motion of the slider 41, namely the reciprocating motion of the scraping block 8, is generated. The design of the two sliding blocks 41, the two first connecting plates 38 and the two second connecting plates 40 ensures that during the adjustment of the sliding blocks 41 of the crank 35, the connecting block 26 is only subjected to a force in the movement direction of the connecting block 26, thereby enhancing the stability of the operation of the scraper block 8.
As a further improvement of this technique, as shown in fig. 9, the guide rail 25 is fixedly attached to the front side of the squeegee 6, and the two sliders 41 are symmetrically attached to the guide rail 25 by sliding engagement.
As a further improvement of the present technology, as shown in fig. 9, two guide grooves 44 are symmetrically formed on the inner side surface of the guide rail 25, two guide blocks 45 are symmetrically installed on both sides of the slider 41, and the two sliders 41 are installed in the guide rail 25 by the sliding fit of the guide blocks 45 and the guide grooves 44 thereon; the corresponding slide block 41 is guided by the sliding fit of the guide block 45 and the guide groove 44.
As a further improvement of the present technology, as shown in fig. 5, the front end surface of the scraper 6 is symmetrically provided with two trapezoidal guide grooves 21, one end of the scraper 8 is provided with a trapezoidal guide block 33, and the two scraper blocks 8 are arranged on the front side of the scraper 6 through the sliding fit of the trapezoidal guide blocks 33 and the trapezoidal guide grooves 21 thereon; the sliding fit of the trapezoidal guide block 33 and the trapezoidal guide groove 21 guides the corresponding scraping block 8.
As a further improvement of the present technology, the above-mentioned adjusting gear 22 is mounted in the guide rail 25 by an eighth fixed shaft 42, two toothed plates 43 are symmetrically mounted on the two sliders 41, and both toothed plates 43 are engaged with the adjusting gear 22, and the two toothed plates 43 are located at both sides of the adjusting gear 22. The two sliding blocks 41 keep synchronous sliding in the moving process through the transmission of the two toothed plates 43 and the adjusting gear 22, namely, the unfolding and the folding of the two first connecting plates 38 and the two second connecting plates 40 keep synchronous.
As a further improvement of the present technology, the scraper 6 is mounted on the mounting bracket 12 by the engagement of a screw and a nut, and the mounting bracket 12 is fixedly mounted on the third link 5 by welding. The screed 6 is removed together with the mounting frame 12 when the screed 6 is replaced.
As a further improvement of the present technology, the scraper 6 is fixedly mounted on the mounting bracket 12 by welding, and the mounting bracket 12 is mounted on the third link 5 by the engagement of a screw and a nut.
According to the construction equipment designed by the invention, when the scraper 6 is in a vertical alignment state, the two scraping blocks 8 arranged on the scraper 6 are distributed on the two square openings 20 on the scraper 6 in a staggered manner, and the hinged end of the crank 35 and the rocker 24 is at the highest point.
The specific working process is as follows: when the construction equipment designed by the invention is used, the four-bar mechanism is controlled by the hydraulic rod 2 to enable the scraper 6 to be in a state close to vertical alignment, then the scraper 6 is inserted between two rails, two square ports 20 on the scraper 6 are just matched with the two rails, after the scraper is inserted, a construction vehicle is controlled to run backwards or the scraper 6 is controlled to move horizontally by controlling two arm supports, and stones between the two rails and on two sides are scraped by the scraper 6; then, the hydraulic rod 2 is used for controlling the third connecting rod 5 to swing relative to the front arm support 1, when the third connecting rod 5 swings relative to the front arm support 1, the fourth gear 19 arranged on the third connecting rod 5 is driven to rotate by the first gear 10 fixedly arranged on the fixed pin shaft 9, the fourth gear 19 rotates to drive the second fixed shaft 18 to rotate, the second fixed shaft 18 rotates to drive the first chain wheel 16 to rotate, the first chain wheel 16 rotates to drive the second chain wheel 17 to rotate through the chain 11, the second chain wheel 17 rotates to drive the first fixed shaft 15 to rotate, the first fixed shaft 15 rotates to drive the third gear 14 to rotate, the third gear 14 rotates to drive the second gear 13 to rotate, the second gear 13 rotates to drive the fifth gear 23 to rotate, the fifth gear 23 rotates to drive the sixth gear 31 to rotate, and the sixth gear 31 rotates to drive the fifth fixed shaft 30 to rotate; the fifth fixed rotating shaft drives the crank 35 to rotate, the crank 35 rotates to drive the rocker 24 to swing, the rocker 24 swings to drive the sliding block 41 hinged with the rocker to slide, the sliding block 41 slides to drive the corresponding first connecting plate 38 and the second connecting plate 40 to swing and unfold, and the other first connecting plate 38 and the other second connecting plate 40 are unfolded simultaneously in the unfolding process; the other first connecting plate 38 and the other second connecting plate 40 are unfolded to drive the other sliding block 41 to slide, the two connecting blocks 26 are driven to transversely slide through the two driving shafts 34 in the unfolding process of the two first connecting plates 38 and the two second connecting plates 40, and the two scraping blocks 8 are driven to transversely slide by the two connecting blocks 26; so that the two scraping blocks 8 arranged on the front side of the scraping plate 6 slide to the two square openings 20 formed in the scraping plate 6, the lower ends of the square openings 20 are sealed, then the construction vehicle is controlled to run backwards or the scraping plate 6 is moved horizontally by controlling the two arm supports, and stones which are not scraped by the scraping plate 6 on the lower side of the rail are scraped.
Whether the scraping block 8 is stretched or not can be determined by an operator according to the operation habit, and the following operations can be performed besides the operations: the scraper 6 is inserted into the stone before the scraper block 8 is not extended to ensure that the extending position of the scraper block 8 is at the lower side of the rail, then the third connecting rod 5 and the front arm frame 1 are controlled to swing to enable the scraper block 8 to extend, and then the scraping operation on the stone is carried out.
Claims (9)
1. A rail stone construction device comprises a construction vehicle and a scraper, wherein the front end of a front arm support of the construction vehicle is provided with a four-bar linkage consisting of a first connecting bar, a second connecting bar, a third connecting bar and the front arm support, one end of the first connecting bar is arranged on the front arm support in a hinged mode, one end of the second connecting bar is hinged with the other end of the first connecting bar, one end of the third connecting bar is arranged on the front arm support in a hinged mode, and the other end of the third connecting bar is hinged with the other end of the second connecting bar; the front arm support is also provided with a hydraulic rod for controlling the four-bar mechanism to work, one end of the hydraulic rod is arranged on the front arm support in a hinged mode, and the other end of the hydraulic rod is fixedly connected with a hinged shaft of the first connecting rod and the second connecting rod; the scraper is provided with two symmetrically distributed square openings and is fixedly arranged on the third connecting rod through the mounting frame; the method is characterized in that: the lower side of the front end of the scraper is symmetrically provided with two scraping blocks in a sliding fit manner, and the two scraping blocks are correspondingly matched with the lower sides of two square openings formed in the scraper one by one; the front end of the scraping plate is provided with a transmission mechanism, the transmission mechanism utilizes the swinging of the third connecting rod relative to the front arm frame to generate relative displacement, and the transmission controls the sliding of the two scraping blocks.
2. A rail stone working apparatus as claimed in claim 1, wherein: the third connecting rod is fixed on the front arm frame through a fixed pin shaft hinged with the front arm frame;
the transmission mechanism comprises a first gear, a chain, a second gear, a third gear, a first chain wheel, a second chain wheel, a fourth gear, a sixth gear and a fifth gear, wherein the first gear is fixedly arranged on the fixed pin shaft; the second fixed shaft is arranged on the third connecting rod in a rotating fit manner, the fourth gear is fixedly arranged at one end of the second fixed shaft, the first chain wheel is fixedly arranged at the other end of the second fixed shaft, the first fixed shaft is arranged on the third connecting rod in a rotating fit manner, the second chain wheel is fixedly arranged at one end of the first fixed shaft, and the second chain wheel is connected with the first chain wheel through a chain; the third gear is fixedly arranged at the other end of the first fixed shaft, the fourth fixed shaft is fixedly arranged at the front side of the scraper plate through a fixed support, the second gear is rotatably arranged on the fourth fixed shaft, and the second gear is meshed with the third gear; the fifth gear is rotatably arranged on the front side of the scraper through a third fixed shaft and is meshed with the second gear; the fifth fixed shaft is arranged on the front side of the scraping plate in a rotating fit mode, the sixth gear is fixedly arranged at one end of the fifth fixed shaft, and the sixth gear is meshed with the fifth gear; the fifth fixed shaft controls the two scraping blocks to slide through a crank sliding block mechanism;
the diameter of the first gear is larger than that of the fourth gear, and the diameters of the fourth gear, the second gear, the third gear, the fourth gear, the fifth gear and the sixth gear are equal.
3. A rail stone working apparatus as claimed in claim 2, wherein: the crank sliding block mechanism comprises a rocker, a connecting block, a crank, a first connecting plate, a second connecting plate and a sliding block, wherein one end of the crank is fixedly arranged at the other end of the fifth fixed shaft, and one end of the rocker is arranged at the other end of the crank in a rotating fit manner; the two sliding blocks are arranged on the front side of the scraping plate in a vertically distributed manner through sliding fit, and one of the two sliding blocks is connected with the other end of the rocker through rotating fit; the two sliding blocks are respectively provided with a first connecting plate and a second connecting plate in a rotating fit mode, the first connecting plates and the second connecting plates positioned on the same sliding block are symmetrically distributed in a splayed mode, one ends, far away from the sliding block, of the two first connecting plates arranged on the two sliding blocks are hinged with each other through a driving shaft, and one ends, far away from the sliding block, of the two second connecting plates arranged on the two sliding blocks are hinged with each other through a driving shaft; two connecting blocks are symmetrically installed on the two driving shafts, and the two scraping blocks are symmetrically and fixedly installed on the two connecting blocks.
4. A rail stone working apparatus as claimed in claim 3, wherein: the front side of the scraper is fixedly provided with a guide rail, and the two sliding blocks are symmetrically arranged in the guide rail through sliding fit.
5. A rail stone working apparatus as claimed in claim 4, wherein: two guide grooves are symmetrically formed in the inner side face of the guide rail, two guide blocks are symmetrically arranged on two sides of the sliding block, and the two sliding blocks are arranged in the guide rail through the sliding fit of the guide blocks and the guide grooves.
6. A rail stone working apparatus as claimed in claim 2, wherein: two trapezoidal guide grooves are symmetrically formed in the front end face of the scraper, a trapezoidal guide block is installed at one end of each scraping block, and the two scraping blocks are installed on the front side of the scraper through sliding fit of the trapezoidal guide blocks and the trapezoidal guide grooves.
7. A rail stone working apparatus as claimed in claim 6, wherein: the adjusting gear is installed in the guide rail through the eighth fixed shaft, the two toothed plates are symmetrically installed on the two sliding blocks, the two toothed plates are meshed with the adjusting gear, and the two toothed plates are located on two sides of the adjusting gear.
8. A rail stone working apparatus as claimed in claim 1, wherein: the scraper is installed on the installation frame through the matching of the screw and the nut, and the installation frame is fixedly installed on the third connecting rod in a welding mode.
9. A rail stone working apparatus as claimed in claim 1, wherein: the scraper plates are fixedly installed on the installation frame in a welding mode, and the installation frame is installed on the third connecting rod through the matching of the screw rods and the nuts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911163138.2A CN110983877A (en) | 2019-11-25 | 2019-11-25 | Rail stone construction equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911163138.2A CN110983877A (en) | 2019-11-25 | 2019-11-25 | Rail stone construction equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110983877A true CN110983877A (en) | 2020-04-10 |
Family
ID=70086334
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911163138.2A Withdrawn CN110983877A (en) | 2019-11-25 | 2019-11-25 | Rail stone construction equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110983877A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111906928A (en) * | 2020-07-24 | 2020-11-10 | 华北水利水电大学 | Continuous stirring machine for gelled sand gravel dam |
| CN113403895A (en) * | 2021-06-04 | 2021-09-17 | 中南大学 | Railway ballast cleaning and laying device |
-
2019
- 2019-11-25 CN CN201911163138.2A patent/CN110983877A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111906928A (en) * | 2020-07-24 | 2020-11-10 | 华北水利水电大学 | Continuous stirring machine for gelled sand gravel dam |
| CN113403895A (en) * | 2021-06-04 | 2021-09-17 | 中南大学 | Railway ballast cleaning and laying device |
| CN113403895B (en) * | 2021-06-04 | 2022-03-01 | 中南大学 | Railway ballast cleaning and laying device |
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| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20200410 |
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| WW01 | Invention patent application withdrawn after publication |