CN110886172A

CN110886172A - Sprocket case and paver

Info

Publication number: CN110886172A
Application number: CN201911187902.XA
Authority: CN
Inventors: 夏锦阳; 梁颂斌; 张勇
Original assignee: Hunan Sany Intelligent Control Equipment Co Ltd
Current assignee: Hunan Sany Intelligent Control Equipment Co Ltd; Sany Automobile Manufacturing Co Ltd
Priority date: 2019-11-28
Filing date: 2019-11-28
Publication date: 2020-03-17

Abstract

The invention relates to the technical field of paving equipment, and particularly provides a chain wheel box and a paver, wherein the chain wheel box comprises: a box body; the supporting frame is positioned in the box body and connected with the box body, and the supporting frame comprises a supporting sleeve; the first driven chain wheel partially extends into the supporting sleeve; the second driven chain wheel is arranged opposite to the first driven chain wheel, and the part of the second driven chain wheel extends into the supporting sleeve; wherein, support the cover and support first driven sprocket with the second driven sprocket, and first driven sprocket with the second driven sprocket with support cover and rotate and be connected. According to the invention, the support sleeve is arranged in the box body to simultaneously support the two driven chain wheels, so that the driven chain wheels on each side are mutually independent, and the two driving chains can approach each other according to the minimum distance, thereby reducing the width size of the box body, improving the segregation phenomenon at the box body and improving the paving quality.

Description

Sprocket case and paver

Technical Field

The invention relates to the technical field of paving equipment, in particular to a chain wheel box and a paving machine.

Background

Paver is used for realizing the operation of paving, and at present, some paver are through setting up sprocket case to drive. The sprocket case includes box, two initiative rotating assembly and two driven rotating assembly, and wherein, driven rotating assembly passes through the chain and is connected with initiative rotating assembly, and two driven rotating assembly install relatively on two relative lateral walls of box.

In the related art, the sprocket box assembly 100 'of the spreading machine adopts a structure that the middle support shaft 120' is compatible with the driven sprocket shafts on both sides as shown in fig. 1. Middle back shaft 120 'is located between two driven sprocket, has brought the problem of the width that increases the box, specifically, is provided with the back shaft with the coaxial setting of two driven runner subassemblies between two driven runner subassemblies, is equipped with the notch on two driven runner subassemblies, and the back shaft both ends are inserted the notch and are connected with two driven runner subassemblies through rolling bearing and rotation, and middle back shaft 120' rethread backup pad and box fixed connection, above-mentioned structure mainly has following shortcoming: 1) the middle support shaft 120' is compatible with the support of the driven rotating assemblies at the two sides, so that the coaxiality of the chain wheels at the two sides fixed on the driven rotating assemblies is mutually influenced, the installation precision of the actual central shaft of each chain wheel is difficult to ensure in processing, namely, the eccentric phenomenon is generated, and finally the tension degree in one circle of the operation of the chain is influenced to be inconsistent, so that the chain has a large swinging phenomenon; 2) because the existence of back shaft for the interval between two chains is great, has increaseed the width size of box, and the segregation phenomenon of box department pitch material has been aggravated to the wide box, influences the paving quality. In addition, some chain wheel box assemblies 100 of the paver adopt the hanging seats 120 'as shown in fig. 2, so that the box body, the hanging seats 120' and the driven chain wheel shaft are integrated and then fixed on the lifting connecting plate or the rack, and because the hanging seat body and the box body are integrated, a middle driving shaft and the hanging seats cannot be detached, and the existence of the middle hanging seat body can generate segregation and material blocking phenomena, thereby influencing the paving quality.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides a chain wheel box and a paver to improve the technical problems in the background art.

To this end, a first object of the present invention is to provide a sprocket box.

A second object of the invention is to provide a paver.

To achieve the first object of the present invention, an embodiment of the present invention provides a sprocket box including: a box body; the supporting frame is positioned in the box body and connected with the box body, and the supporting frame comprises a supporting sleeve; the first driven chain wheel part extends into the supporting sleeve; the second driven chain wheel is arranged opposite to the first driven chain wheel, and the second driven chain wheel partially extends into the supporting sleeve; wherein the support sleeve supports the first driven sprocket and the second driven sprocket, and the first driven sprocket and the second driven sprocket are rotatably connected with the support sleeve.

First driven sprocket and second driven sprocket stretch into the inside of same support cover after stretching into the box respectively, have reduced the distance between two chain teeth of two driven sprockets to can reduce the width of box, can improve the segregation phenomenon of box department, finally improve the quality of paving.

In addition, the technical scheme provided by the invention can also have the following additional technical characteristics:

among the above-mentioned technical scheme, support the cover and include: an annular body; the first bearing matching hole is arranged on the annular body; the second bearing matching hole is arranged on the annular body and is opposite to the first bearing matching hole; wherein the first driven sprocket extends to an interior of the first bearing engagement hole and the second driven sprocket extends to an interior of the second bearing engagement hole.

The first driven chain wheel and the second driven chain wheel respectively extend into the supporting sleeve through the matching surface of the first bearing hole and the matching surface of the second bearing hole so as to realize the common support on one supporting sleeve.

In any one of the above technical solutions, the sprocket box further includes: a first inner bearing disposed between the first driven sprocket and the annular body and having a first bearing inner race and a first bearing outer race; a second inner bearing disposed between the second driven sprocket and the annular body and having a second bearing inner race and a second bearing outer race; the first bearing inner ring is connected with the first driven chain wheel, and the first bearing outer ring is connected with the annular body; the second bearing inner ring is connected with the second driven chain wheel, and the second bearing outer ring is connected with the annular body.

First driven sprocket and second driven sprocket all stretch into through an inner bearing and support the cover and be connected with supporting the cover, especially when the coaxial setting of first bearing mating holes and second bearing mating holes, the inner bearing is the standard and buys the piece outward, consequently can guarantee the coaxial setting of first driven sprocket or second driven sprocket, and stable in structure when making first driven sprocket or second driven sprocket independent rotation has avoided the swing of chain.

In any one of the above technical solutions, the support sleeve further includes: and the separation ring protrudes out of the inner wall of the annular body and is arranged between the first bearing matching hole and the second bearing matching hole so as to separate the first bearing outer ring from the second bearing outer ring.

The arrangement of the separating ring can separate the first bearing outer ring from the second bearing outer ring, so that the first driven chain wheel and the second driven chain wheel are separated, the first driven chain wheel and the second driven chain wheel are guaranteed not to collide, and the first driven chain wheel and the second driven chain wheel are enabled to keep independence.

In any one of the above technical solutions, the case includes: two side walls arranged oppositely; the two mounting holes are respectively arranged on the two side walls; the mounting hole on one side and the first bearing matching hole are coaxially arranged, the fire speed mounting hole on the other side and the second bearing matching hole are coaxially arranged, and part of the first driven chain wheel or part of the second driven chain wheel is supported in the mounting hole.

The two mounting holes can ensure the coaxiality of machining, and can also ensure the coaxiality of machining with the first bearing matching hole and the second bearing matching hole, so that the coaxial arrangement of the two driven chain wheels can be realized.

In the above-mentioned technical scheme, sprocket case still includes: the first bearing seat is arranged in the mounting hole; the first outer bearing is arranged in the first bearing seat, is provided with a third bearing inner ring and a third bearing outer ring, and is connected with the first driven chain wheel; the second bearing block is arranged in the mounting hole; and the second outer bearing is arranged in the second bearing seat, is provided with a fourth bearing inner ring and a fourth bearing outer ring, and is connected with the second driven sprocket.

First bearing frame and second bearing frame support first driven sprocket or second driven sprocket's rotation jointly, on the basis of guaranteeing first driven sprocket or second driven sprocket axiality, can improve driven sprocket pivoted stability and reliability.

In any one of the above technical solutions, the support frame includes: two ends of the connecting pipe are respectively connected with the box body; and one end of the suspender is connected with the connecting pipe, and the other end of the suspender extends out of the outer surface of the connecting pipe and is connected with the supporting sleeve.

The jib is located between first driven sprocket's the chain tooth and the chain tooth of second driven sprocket, makes the overall dimension of jib satisfy this requirement as far as possible, can guarantee the width minimize of box, can guarantee the running width of chain again.

In the above-mentioned technical scheme, sprocket case still includes: the power transmission device comprises a first power input device, a second power input device, a first input shaft connected with the first power input device and a second input shaft connected with the second power input device, wherein the first power input device is arranged at one outer side of the box body, the second power input device is arranged at the other outer side of the box body, the first input shaft and the second input shaft respectively extend into the box body, a first driving chain wheel and a second driving chain wheel are arranged in the box body, the first driving chain wheel is sleeved on the first input shaft, the second driving chain wheel is sleeved on the second input shaft, a first driven shaft and a second driven shaft are further arranged in the box body, the first driven chain wheel is sleeved on the first driven shaft, the second driven chain wheel is sleeved on the second driven shaft, and the first driven shaft and the second driven shaft are arranged at intervals, the first driving chain wheel is connected with the first driven chain wheel through a first chain, and the second driving chain wheel is connected with the second driven chain wheel through a second chain.

Simple structure and high transmission efficiency.

In any of the above technical solutions, the sprocket box further includes a shaft end plate disposed on an end surface of the first driven shaft or the second driven shaft in the box body, and an edge of the shaft end plate is connected to the first driven sprocket or the second driven sprocket; and the positioning bolt penetrates through the first driven shaft or the second driven shaft to be connected with the shaft end plate. The utility model discloses a take-up and take-up device, including box, lifting connection plate, tensioning bolt, lifting connection plate, driven sprocket, lifting connection plate, the outside laminating of box has the lifting connection plate, be equipped with the through-hole on the face of lifting connection plate for wear to establish first input shaft or with the second input shaft the lifting connection plate is being close to driven sprocket one end sets up the screw hole, be equipped with the tensioning plate on the lateral wall between lifting connection plate and the driven sprocket, be equipped with the through-hole on the tensioning plate, make in order to wear to establish the tensioning bolt the screw hole that.

The tensioning degree of the chain can be adjusted by adjusting the lifting connecting plate through the tensioning bolt.

To achieve the second object of the present invention, an embodiment of the present invention provides a paving machine including: a sprocket case; the spiral material distributing devices are arranged on two sides of the chain wheel box; the first driven shaft and the second driven shaft of the chain wheel box are respectively connected with the spiral material distributing device on the corresponding side so as to drive the spiral material distributing device to act. The paver provided by the embodiment of the invention comprises the sprocket box of any embodiment of the invention, so that the whole beneficial effects of the sprocket box of any embodiment of the invention are achieved, and the details are not repeated.

Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Drawings

FIG. 1 is a cross-sectional structural schematic view of one of the related art sprocket boxes;

FIG. 2 is a cross-sectional view of another related art sprocket cassette;

FIG. 3 is a front cross-sectional structural schematic view of a sprocket cassette (without a drive assembly installed) according to one embodiment of the present invention;

FIG. 4 is a side view of the structure of FIG. 3;

FIG. 5 is a front cross-sectional structural schematic view of a sprocket cassette in accordance with one embodiment of the present invention;

FIG. 6 is a side view of the structure of FIG. 5;

FIG. 7 is a partially enlarged schematic view of FIG. 5;

fig. 8 is a schematic diagram of the components of a paving machine according to one embodiment of the invention.

Wherein, the correspondence between the reference numbers and the component names in fig. 1 and fig. 2 is:

100': sprocket housing assembly, 120': middle support shaft, 100 ": sprocket housing assembly, 120 ": a hanging seat.

The correspondence between reference numerals and part names in fig. 3 to 8 is:

10: paver, 12: sprocket case, 14: feed divider, 110: case, 112: side walls, 114: mounting hole, 116: case end plate, 118: lifting connecting plate, 120: tension plate, 122: tension bolt, 130: bearing seat, 132: first bearing housing, 134: second bearing housing, 140: input shaft, 142: first input shaft, 144: second input shaft, 210: drive sprocket, 212: first drive sprocket, 214: second drive sprocket, 310: driven sprocket, 312: first driven sprocket, 314: second driven sprocket, 410: chain, 412: first chain, 414: second chain, 510: power input device, 512: first power input device, 514: second power input device, 610: inner bearing, 612: first inner bearing, 614: second inner bearing, 710: outer bearing, 712: first outer bearing, 714: second outer bearing, 716: gland, 810: driven shaft, 812: first driven shaft, 814: second driven shaft, 816: shaft end plate, 818: positioning bolt, 820: oil seal, 910: support frame, 912: support tube, 914: boom, 916: a seal plate, 918: a support bar, 920: support cover, 922: first bearing fitting hole, 924: second and bearing-fitting holes, 926: spacer ring, 928: an annular body.

Detailed Description

In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.

The technical solutions of some embodiments of the present invention are described below with reference to the accompanying drawings.

Example 1:

as shown in fig. 3 to 8, the present embodiment provides a sprocket box 12 for cooperating with a paving machine 10, and an output end of the sprocket box 12 is connected to a material-dividing device 14 to drive the material-dividing device 14 to pave a road surface.

In the related art, the sprocket box assembly 100' of the paver adopts a structure that the middle support shaft 120' as shown in fig. 1 is compatible with supporting the driven sprocket shafts on both sides, and the middle support shaft 120' is positioned between two driven sprockets, which brings about a problem of increasing the width of a box body. In addition, some chain wheel box assemblies 100 of the paver adopt the hanging seats 120 'as shown in fig. 2, so that the box body, the hanging seats 120' and the driven chain wheel shafts are fixed on the lifting connecting plate or the rack after being integrated, each driven chain wheel needs to be close to the inner wall of the box body, the gap between the two driven chain wheels is enlarged, and although the problem of independence of the two driven chain wheels is solved, the width of the box body still can be increased.

Because the case body width size of sprocket box subassembly can directly influence the quality of paving of paver, if case body width is great, will add the segregation phenomenon of the asphalt material of case body department to influence the quality of paving of paver.

For convenience of description and clarity of illustration in the following embodiments, the bearing housing 130 is divided into a first bearing housing 132 and a second bearing housing 134, the input shaft 140 is divided into a first input shaft 142 and a second input shaft 144, the driving sprocket 210 is divided into a first driving sprocket 212 and a second driving sprocket 214, the driven sprocket 310 is divided into a first driven sprocket 312 and a second driven sprocket 314, the chain 410 is divided into a first chain 412 and a second chain 414, the power input device 510 is divided into a first power input device 512 and a second power input device 514, the inner bearing 610 is divided into a first inner bearing 612 and a second inner bearing 614, the outer bearing 710 is divided into a first outer bearing 712 and a second outer bearing 714, and the driven shaft 810 is divided into a first driven shaft 812 and a second driven shaft 814. Wherein, the first and the second are just convenient for distinguishing and have no practical significance.

In view of this, the present embodiment provides a sprocket box 12, which includes a box body 110, a supporting frame 910, a first driven sprocket 312 and a second driven sprocket 314, wherein the supporting frame 910 is located in the box body 110, and the supporting frame 910 is connected to the box body 110 and is provided with a supporting sleeve 920. The first driven sprocket 312 partially protrudes into the case 110 and extends to the inside of the support sleeve 920, the second driven sprocket 314 is disposed opposite to the first driven sprocket 312, and the second driven sprocket 314 partially protrudes into the case 110 and extends to the inside of the support sleeve 920, wherein the support sleeve 920 supports the first driven sprocket 312 and the second driven sprocket 314.

As shown in fig. 3, 4, 5 and 6, the box body 110 has two opposite side walls 112, the two side walls 112 are connected at one end near the driven sprocket 310 by a bottom plate, a top plate (none of which is shown), and a box body end plate 116, and the box body end plate 116 is an arc-shaped plate.

One end of the case 110 in the length direction is provided with a power input device 510 and a driving sprocket 210, wherein the first power input device 512 is connected with the first driving sprocket 212 through a first input shaft 142, the second power input device 514 is connected with the second driving sprocket 214 through an input shaft 144, and the first driving sprocket 212 and the second driving sprocket 214 are both located in the case 110. The power input device 510 is a speed reducer, and the output shaft of the speed reducer is the input shaft 140.

The other end of the case 110 in the length direction is provided with a driven shaft 810 and a driven sprocket 310, the power input device 510 drives the driven sprocket 310 to rotate through the driving sprocket 210 and the chain 410, wherein a part of the first driven shaft 812 extends into the case 110, and the first driven sprocket 312 is assembled with the first driven shaft 812 in a key connection manner, for example, a spline connection. A portion of the second driven shaft 814 extends into the housing 110, and the second driven sprocket 314 is splined, such as by a spline connection, to the second driven shaft 814.

First power input device 512 drives first drive sprocket 212 to rotate, first drive sprocket 212 drives first driven sprocket 312 to rotate through first chain 412, first driven sprocket 312 drives first driven shaft 812 to rotate, thereby make first driven shaft 812 output torque, simultaneously, second power input device 514 drives second drive sprocket 214 to rotate, second drive sprocket 214 drives second driven sprocket 314 to rotate through second chain 414, second driven sprocket 314 drives second driven shaft 814 to rotate, thereby make second driven shaft 814 output torque. The feed divider 14 is connected to the first driven shaft 812 or the second driven shaft 814 for real-time paving operations.

As shown in fig. 5, the outer side of the box body 110 is attached with a lifting connection plate 118, a through hole is formed in a plate surface of the lifting connection plate 118 and used for penetrating through the first input shaft 142 or the second input shaft 144, the lifting connection plate 118 has a certain thickness so as to form a threaded hole at one end close to the driven sprocket 310, a tension plate 120 is arranged on the side wall 112 between the lifting connection plate 118 and the driven sprocket 310, and a through hole is formed in the tension plate 120 so as to penetrate through the tension bolt 122 and enable the tension bolt 122 to extend into the threaded hole of the lifting connection plate 118. The height of the lifting link plate 118 can be adjusted by the tension bolt 122 to adjust the tension of the chain 410.

In which the support frame 910 is located inside the casing 110 to replace the intermediate support shaft 120' or the hanger 120 ″ as more commonly used in the related art as shown in fig. 1 or 2, and the support sleeve 920 simultaneously supports the first driven sprocket 312 and the second driven sprocket 314 so that the first driven sprocket 312 and the second driven sprocket 314 at both sides are independent from each other. The first driven sprocket 312 and the second driven sprocket 314 are respectively provided with chain teeth meshed with the chain 410, the first driven sprocket 312 and the second driven sprocket 314 are oppositely arranged on the box body 110, a part of the first driven sprocket 312 and a part of the second driven sprocket 314 extend into the box body 110 and extend to the inside of the support sleeve 920, so that the first chain 412 and the second chain 414 can be close to each other according to the minimum distance, the distance between the two chain teeth is shortened, the width size of the box body 110 is reduced, the segregation phenomenon at the position of the box body 110 is improved, and the paving quality is improved.

Example 2:

the present embodiment provides a sprocket box, and includes the following technical features in addition to the technical features of the above-described embodiments.

Continuing with fig. 3, support sleeve 920 includes: annular body 928, first bearing cooperation hole 922 and second bearing cooperation hole 924, wherein, first bearing cooperation hole 922 locates on annular body 928, and second bearing cooperation hole 924 locates on annular body 928, and sets up with first bearing cooperation hole 922 is coaxial, and first driven sprocket 312 extends to the inside of first bearing cooperation hole 922, and second driven sprocket 314 extends to the inside of second bearing cooperation hole 924.

First driven sprocket 312 can assemble with first bearing cooperation hole 922 through first inner bearing 612, second driven sprocket 314 can assemble with second bearing cooperation hole 924 through second inner bearing 614, make first driven sprocket 312 and second driven sprocket 314 mutually independent, and when first bearing cooperation hole 922 and the coaxial setting of second bearing cooperation hole 924, also can realize the axiality of first driven sprocket 312 and second driven sprocket 314, further avoid the eccentricity of first chain 412 and second chain 414, guaranteed that first driven sprocket 312 and second driven sprocket 314 can not collide, thereby guarantee mutually independent between the two. A spacer ring 926 is circumferentially disposed on an inner wall of the annular body 928 to separate the first bearing engagement hole 922 and the second bearing engagement hole 924. A first bearing outer race is installed in the first bearing engagement hole 922, a second bearing outer race is installed in the second bearing engagement hole 924, and the partition ring 926 may be replaced with a baffle plate, which only causes trouble when the inner bearing 610 is installed.

The first driven sprocket 312 and the second driven sprocket 314 respectively extend into the box body 110 and respectively extend to the inner part of the first bearing matching hole 922 and the inner part of the second bearing matching hole 924 to realize the rotating matching, so as to realize the common support on the support sleeve 920, and the purpose of reducing the width of the box body is achieved by sharing one support sleeve 920.

Example 3:

As shown in continuing reference to fig. 5 and 7, the sprocket housing 12 further includes: a first inner bearing 612 and a second inner bearing 614, the first inner bearing 612 being disposed between the first driven sprocket 312 and the annular body 928, the first inner bearing 612 having a first inner bearing ring and a first outer bearing ring. A second inner bearing 614 is disposed between the second driven sprocket 314 and the annular body 928, the second inner bearing 614 having a second bearing inner race and a second bearing outer race. Wherein, the first bearing inner ring is connected with first driven sprocket 312, the first bearing outer ring is connected with first bearing mating hole 922, the second bearing inner ring is connected with second driven sprocket 314, the second bearing outer ring is connected with first bearing mating hole 922.

The first driven sprocket 312 rotates with the first bearing outer ring through the first bearing inner ring, so that the first driven sprocket 312 drives the first driven shaft 812 to rotate, and the first driven shaft 812 outputs torque. Similarly, the second driven sprocket 314 rotates with the second bearing outer ring through the second bearing inner ring, so that the second driven sprocket 314 drives the second driven shaft 814 to rotate, so that the second driven shaft 814 outputs torque.

Example 4:

The structure of the middle support shaft 120' as shown in fig. 1, which supports the driven sprocket shafts on both sides, not only increases the width of the box 110, but also the coaxiality of the driven sprockets fixed on the driven sprocket shafts on both sides is affected by each other, and it is difficult to ensure the installation accuracy of the actual central axis of each driven sprocket in processing, i.e. the eccentric phenomenon occurs, and finally the operation of the chain is affected, so that the tensioning degree in the circumference is inconsistent, and the chain has a large swing phenomenon. In addition, although there is a case structure in which a hanger 120 ″ shown in fig. 2 is used, the case, the hanger and the driven sprocket are integrally fixed to a lifting link plate or a frame. Due to the processing deformation of the frame (welding machine) and the hanging seat body (welding machine), the deformation generated after actual operation and the assembly error caused by bolt installation, the coaxiality of the two driven chain wheel shafts is greatly influenced, and the chain can be enlarged and swung. And because the hanging seat 120 'and the box body are integrated, the driven chain wheel shaft and the hanging seat can not be detached, the existence of the hanging seat 120' can generate the phenomena of segregation and material blocking, and the paving quality is finally influenced.

In view of this, it is necessary to ensure the coaxiality of the first driven sprocket 312 and the second driven sprocket 314, and therefore, the casing 110 includes: two opposite side walls 112 and two mounting holes 114, as shown in fig. 3, the two mounting holes 114 are respectively disposed on the two side walls 112, wherein the mounting hole 114 and the first bearing matching hole 922 on one side are coaxially disposed, the mounting hole 114 and the second bearing matching hole 924 on the other side are coaxially disposed, and a part of the first driven sprocket 312 or a part of the second driven sprocket 314 is supported in the mounting hole 114, so that the coaxiality of the first driven sprocket 312 or the second driven sprocket 314 supported in the mounting hole 114 can be ensured, the swinging of the first chain 412 and the second chain 414 is avoided, the segregation and blocking phenomena are avoided, and the paving quality of the paver is ensured.

Example 5:

the present embodiment provides a sprocket case 12, and includes the following technical features in addition to the technical features of the above-described embodiment.

While the width of the housing 110 can be reduced, it is necessary to ensure the stability of torque transmission of the driven shaft 810, that is, the stability of rotation of the driven sprocket 310, and therefore, the sprocket housing 12 further includes: first outer bearing 712, first bearing seat 132, second outer bearing 714, and second bearing seat 134 are shown with continued reference to fig. 5 and 7, wherein first bearing seat 132 is disposed within mounting hole 114 and has an edge that extends out of mounting hole 114 for attachment to sidewall 112 with a fastener, such as a bolt or screw, for example, to sidewall 112. The first outer bearing 712 is disposed within the first bearing housing 132, has a third bearing inner race and a third bearing outer race, and is connected with the first driven sprocket 312. The second bearing housing 134 is disposed in the other mounting hole 114, and the second outer bearing 714 is disposed in the second bearing housing 134, has a fourth bearing inner race and a fourth bearing outer race, and is connected to the second driven sprocket 314. In order to ensure the stability of the mounting structure of the first bearing seat 132 or the second bearing seat 134, the first driven shaft 812 or the second driven shaft 814 is connected with the first bearing seat 132 or the second bearing seat 134 through a gland 716, the gland 716 may be a flange cover plate, a through hole is provided in the center of the gland 716 so that one end of the driven shaft 810 located outside the case 110 is penetrated, the gland 716 is connected with the bearing seat 130 through a fastener, such as a bolt or a screw, and the bearing seat 130 may be connected with the sidewall 112 of the case 110 through a fastener so as to further connect the bearing seat 130 with the case 110 through the gland 716.

The stability of the rotating structure of the driven sprocket 310 can be ensured by the support of the two bearing seats.

Example 6:

As shown in fig. 5 and 7, the sprocket box 12 further includes a first driven shaft 812, a second driven shaft 814, a shaft end plate 816 and a positioning bolt 818, wherein one end of the first driven shaft 812 extends into the box 110 and is connected to the first driven sprocket 312, and the other end of the first driven shaft extends out of one end of the box 110 to output torque. One end of the second driven shaft 814 extending into the box body 110 is connected with the second driven sprocket 314, and one end extending out of the box body 110 outputs torque. A shaft end plate 816 is provided on an end face of the first driven shaft 812 or the second driven shaft 814 in the case 110, and an edge of the shaft end plate 816 is connected to the first driven sprocket 312 or the second driven sprocket 314. A set bolt 818 is inserted through the first driven shaft 812 or the second driven shaft 814 to connect the shaft end plate 816. Such a structure makes the connection structure of the driven shaft first driven shaft 812 and the first driven sprocket 312 more compact, and provides a further reliable guarantee for reducing the width of the casing 110, especially for the positioning bolt 818, besides further connecting the shaft end plate 816 with the first driven shaft 812 or the shaft end plate 816 with the second driven shaft 814, at the same time the positioning bolt 818 also has the function of axially positioning the driven shaft 812 or the second driven shaft 814. The end of the positioning bolt 818 adjacent the sidewall 112 is also provided with an oil seal 820.

Example 7:

As shown in fig. 3, 5 and 7, the supporting frame 910 has a symmetrical structure with the center line of the width of the casing 110 as the center of symmetry, so that the supporting frame 910, especially the supporting sleeve 920, is not shifted during long-term use, thereby further ensuring the coaxiality of the first driven sprocket 312 and the second driven sprocket 314. Specifically, the support frame 910 includes: a connecting pipe 912 and a hanger bar 914, wherein the connecting pipe 912 is a hollow tubular structure, which can reduce the dead weight, two ends of the connecting pipe 912 are provided with sealing plates 916 for sealing to prevent impurities from entering the box body 110, and two ends of the connecting pipe 912 are respectively connected with the box body 110. One end of the hanger bar 914 is welded to the middle of the connection pipe 912, and the other end of the hanger bar 914 is welded to the support sleeve 920. The extending direction of the suspension rod 914 is perpendicular to the extending direction of the connecting pipe 912 and the supporting sleeve 920, the suspension rod 914 is located between the chain teeth of the first driven sprocket 312 and the chain teeth of the second driven sprocket 314, the distance between the two chains is shortened as much as possible, that is, the width of the box body 110 can be reduced under the condition that the operation of the chains can be ensured, and meanwhile, the stability of the supporting structure of the supporting frame 910 to the driven sprockets on both sides can be further ensured due to the symmetrical structure.

In order to increase the structural strength of the support frame 910 to support the support sleeve 920, the support sleeve 920 is further connected to the box end plate 116 through a support rod 918.

Example 8:

with continued reference to fig. 5, 6 and 7, the present embodiment provides a sprocket box 12, which includes a box body 110, a supporting frame 910, a first bearing seat 132, a second bearing seat 134, a first driven sprocket 312, a first driven shaft 812, a second driven sprocket 314, a second driven shaft 814, a first driving sprocket 212, a second driving sprocket 214, a first chain 412, a second chain 414, a first power input device 512, a second power input device 514, a first input shaft 142 connected to the first power input device 512, and a second input shaft 144 connected to the second power input device 514, wherein the first power input device 512 is disposed at one outer side of the box body 110, the second power input device 514 is disposed at the other outer side of the box body 110, the first input shaft 142 and the second input shaft 144 respectively extend into the box body 110, the first driving sprocket 212 and the second driving sprocket 214 are disposed in the box body 110, the first driving sprocket 212 is sleeved on the first input shaft 142, the second driving sprocket 214 is sleeved on the second input shaft 144, a first driven shaft 812 and a second driven shaft 814 are further arranged in the box body 110, the first driven sprocket 312 is sleeved on the first driven shaft 812, the second driven sprocket 314 is sleeved on the second driven shaft 814, the first driven shaft 812 and the second driven shaft 814 are arranged at intervals, the first driving sprocket 212 is connected with the first driven sprocket 312 through a first chain 412, and the second driving sprocket 214 is connected with the second driven sprocket 314 through a second chain 414. The casing 110 has two opposite side walls 112, the two side walls 112 are connected to the casing end plate 116 at one end near the driven sprocket 310 by a bottom plate, a top plate (neither shown), and two mounting holes 114 are respectively formed in the two opposite side walls 112 of the casing 110, a portion of the first driven sprocket 312 is supported in one of the mounting holes 114, and a portion of the second driven sprocket 314 is supported in the other mounting hole 114.

The first bearing housing 132 and the second bearing housing 134 are respectively provided in the two mounting holes 114 to respectively support the first driven sprocket 312 and the second driven sprocket 314.

Support frame 910 is equipped with and supports cover 920, supports cover 920 and includes: annular body 928, first bearing cooperation hole 922 and second bearing cooperation hole 924, wherein, first bearing cooperation hole 922 locates on annular body 928, and second bearing cooperation hole 924 locates on annular body 928, and sets up with first bearing cooperation hole 922. The first bearing engagement hole 922 is provided coaxially with the corresponding mounting hole 114, and the second bearing engagement hole 924 is provided coaxially with the corresponding mounting hole 114.

A first inner bearing 612 is disposed between the first driven sprocket 312 and the annular body 928, the first inner bearing 612 having a first bearing inner race and a first bearing outer race. A second inner bearing 614 is disposed between the second driven sprocket 314 and the annular body 928, the second inner bearing 614 having a second bearing inner race and a second bearing outer race. Wherein, the first bearing inner ring is connected with first driven sprocket 312, the first bearing outer ring is connected with first bearing mating hole 922, the second bearing inner ring is connected with second driven sprocket 314, the second bearing outer ring is connected with first bearing mating hole 922.

The first driven sprocket 312 is matched with the first bearing outer ring through the first bearing inner ring, so that the first driven sprocket 312 rotates and drives the first driven shaft 812 to rotate, and the first driven shaft 812 outputs torque. Similarly, the second driven sprocket 314 is engaged with the second bearing outer ring through the second bearing inner ring, so that the second driven sprocket 314 rotates and drives the second driven shaft 814 to rotate, so that the second driven shaft 814 outputs torque.

The first driven sprocket 312 can be fitted with the first bearing fitting hole 922 through the first inner bearing 612, the second driven sprocket 314 can be fitted with the second bearing fitting hole 924 through the second inner bearing 614, since the first inner bearing 612 is positioned in the first bearing engagement hole 922, the second inner bearing 614 is positioned in the second bearing engagement hole 924, and the first bearing engagement hole 922 and the second bearing engagement hole 924 are independent from each other, thereby making the first driven sprocket 312 and the second driven sprocket 314 independent from each other, when the first bearing engagement hole 922 and the second bearing engagement hole 924 are coaxially disposed, the coaxiality of the first driven sprocket 312 and the second driven sprocket 314 can be further ensured, the eccentricity of the first chain 412 and the second chain 414 is avoided, in order to ensure the mutual independence between the two driven sprockets, a spacer ring 926 is disposed axially within the annular body 928 to separate the first bearing engagement bore 922 from the second bearing engagement bore 924.

A support sleeve 920 is coupled to an end of the suspension bar 914 to replace the intermediate support shaft 120 'and the hanger bracket 120' which are more commonly used, the support sleeve 920 has a first bearing coupling hole 922 and a second bearing coupling hole 924, and a separation ring 926 is circumferentially provided in the support sleeve 920 to separate the first bearing coupling hole 922 and the second bearing coupling hole 924. Mounting hole 114, first bearing mating holes 922 and the coaxial setting of second bearing mating holes 924 to this can guarantee the coaxial setting of first driven sprocket 312 and second driven sprocket 314, has avoided the swing of chain, thereby has avoided producing the segregation and has hindered the material phenomenon, has guaranteed the quality of paving of paver.

The supporting frame 910 is located in the box body 110, and the supporting frame 910 includes: the connecting pipe 912 and the hanger bar 914, wherein the connecting pipe 912 is a hollow tubular structure, which can reduce the weight, both ends of the connecting pipe 912 are provided with sealing plates 916 for sealing to prevent impurities from entering the tank 110, and both ends of the connecting pipe 912 are respectively connected with the tank 110. One end of the hanger bar 914 is welded to the middle of the connection pipe 912, and the other end of the hanger bar 914 extends out of the outer surface of the connection pipe 912 and is welded to the support sleeve 920. The extending direction of the hanging rod 914 is perpendicular to the extending direction of the connecting pipe 912 and the supporting sleeve 920, the hanging rod 914 is positioned between the chain teeth of the first driven chain wheel 312 and the chain teeth of the second driven chain wheel 314, so that the appearance sizes of the hanging rod 914 and the supporting sleeve 920 do not exceed the requirement of the internal installation size during the operation of the chain, the internal space of the box body 110 only needs to consider the requirement of the chain passage and the installation, and the width size of the box body 110 is reduced. To increase the structural strength of the support frame 910, a support sleeve 920 is connected to the end plate 116 via a support rod 918.

One end of the first driven shaft 812 extends into the case 110 and is connected to the first driven sprocket 312, and the other end thereof extends out of one end of the case 110 to output torque. One end of the second driven shaft 814 extending into the box body 110 is connected with the second driven sprocket 314, and one end extending out of the box body 110 outputs torque. A shaft end plate 816 is provided on an end face of the first driven shaft 812 or the second driven shaft 814 in the case 110, and an edge of the shaft end plate 816 is connected to the first driven sprocket 312 or the second driven sprocket 314. A set bolt 818 is inserted through the first driven shaft 812 or the second driven shaft 814 to connect the shaft end plate 816. Such a structure makes the connection structure of the first driven shaft 812 and the first driven sprocket 312 more compact, and provides a further reliable guarantee for reducing the width of the casing 110, especially for the positioning bolt 818, besides further connecting the shaft end plate 816 with the first driven shaft 812 or the shaft end plate 816 with the second driven shaft 814, the positioning bolt 818 also has the function of axially positioning the driven shaft 812 or the second driven shaft 814. The end of the positioning bolt 818 adjacent the sidewall 112 is also provided with an oil seal 820.

Example 9:

referring to fig. 8, a paver includes: a sprocket box 12 and a spiral feed divider 14 arranged on both sides of the sprocket box 12. The first driven shaft 812 and the second driven shaft 814 of the sprocket box 12 are respectively connected with the spiral feed divider 14 on the corresponding sides to drive the spiral feed divider 14 to operate. Specifically, a screw shaft is disposed inside the spiral material distributor 14, and the screw shaft is connected to the first driven shaft 812 or the second driven shaft 814 to distribute and distribute the paving materials entering the spiral material distributor 14, so as to implement the paving operation.

In the invention, the sprocket wheel box 12 with the box body with small width is applied to the spreading machine 10, so that the spreading quality of the spreading machine 10 is improved.

In summary, the embodiment of the invention has the following beneficial effects:

1. the outer dimension of the hanger bar 914 of the support frame 910 can be selected smaller than the minimum inner dimension of the chain, so that the two driving chains can be close to each other at the minimum distance, thereby reducing the width dimension of the box body 110 and improving the segregation phenomenon at the box body 110.

2. The support frame 910 is welded in the box body 110 to replace a middle support shaft and a support plate, so that the driving wheels on each side are mutually independent, the possibility of reducing the width size of the box body 110 is provided, and the processing coaxiality of the mounting holes 114 on the two side walls 112 of the box body 110 can be ensured.

3. The sprocket case 12 having a case body with a small width is applied to the paver 10, improving the paving quality of the paver 10.

In the present invention, the term "plurality" means two or more unless explicitly defined otherwise. The terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred devices or units must have a specific direction, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description herein, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A sprocket cassette, comprising:

a box body;

the supporting frame is positioned in the box body and connected with the box body, and the supporting frame comprises a supporting sleeve;

the first driven chain wheel partially extends into the supporting sleeve;

the second driven chain wheel is arranged opposite to the first driven chain wheel, and the part of the second driven chain wheel extends into the supporting sleeve;

wherein the support sleeve supports the first driven sprocket and the second driven sprocket, and the first driven sprocket and the second driven sprocket are rotatably connected with the support sleeve.

2. The sprocket cassette of claim 1, wherein the support sleeve comprises:

an annular body;

the first bearing matching hole is arranged on the annular body;

the second bearing matching hole is arranged on the annular body and is opposite to the first bearing matching hole;

wherein the first driven sprocket extends to an interior of the first bearing engagement hole and the second driven sprocket extends to an interior of the second bearing engagement hole.

3. The sprocket cassette of claim 2, further comprising:

a first inner bearing disposed between the first driven sprocket and the annular body and having a first bearing inner race and a first bearing outer race;

a second inner bearing disposed between the second driven sprocket and the annular body and having a second bearing inner race and a second bearing outer race;

the first bearing inner ring is connected with the first driven chain wheel, and the first bearing outer ring is connected with the annular body; the second bearing inner ring is connected with the second driven chain wheel, and the second bearing outer ring is connected with the annular body.

4. The sprocket cassette of claim 3, wherein the support sleeve further comprises:

and the separation ring protrudes out of the inner wall of the annular body and is arranged between the first bearing matching hole and the second bearing matching hole so as to separate the first bearing outer ring and the second bearing outer ring.

5. The sprocket cassette of claim 2, wherein the cassette body comprises:

two side walls arranged oppositely;

the two mounting holes are respectively arranged on the two side walls;

the mounting hole on one side and the first bearing matching hole are coaxially arranged, the mounting hole on the other side and the second bearing matching hole are coaxially arranged, and one part of the first driven chain wheel or one part of the second driven chain wheel is supported in the mounting hole.

6. The sprocket cassette of claim 5, further comprising:

the first bearing seat is arranged in the mounting hole;

the first outer bearing is arranged in the first bearing seat, is provided with a third bearing inner ring and a third bearing outer ring, and is connected with the first driven chain wheel;

the second bearing block is arranged in the mounting hole;

and the second outer bearing is arranged in the second bearing seat, is provided with a fourth bearing inner ring and a fourth bearing outer ring, and is connected with the second driven sprocket.

7. The sprocket cassette according to any one of claims 1 to 6, wherein the support bracket comprises:

two ends of the connecting pipe are respectively connected with the box body;

and one end of the hanging rod is connected with the middle part of the connecting pipe, and the other end of the hanging rod is connected with the supporting sleeve.

8. The sprocket cassette according to any one of claims 1 to 6, further comprising: the power transmission device comprises a first power input device, a second power input device, a first input shaft connected with the first power input device and a second input shaft connected with the second power input device, wherein the first power input device is arranged at one outer side of the box body, the second power input device is arranged at the other outer side of the box body, the first input shaft and the second input shaft respectively extend into the box body, a first driving chain wheel and a second driving chain wheel are arranged in the box body, the first driving chain wheel is sleeved on the first input shaft, the second driving chain wheel is sleeved on the second input shaft, a first driven shaft and a second driven shaft are further arranged in the box body, the first driven shaft and the second driven shaft are arranged at intervals, the first driven chain wheel is sleeved on the first driven shaft, the second driven chain wheel is sleeved on the second driven shaft, the first driving chain wheel is connected with the first driven chain wheel through a first chain, and the second driving chain wheel is connected with the second driven chain wheel through a second chain.

9. The sprocket cassette of claim 8, further comprising:

the end plate is arranged on the end face of the first driven shaft or the second driven shaft in the box body, and the edge of the end plate is connected with the first driven chain wheel or the second driven chain wheel so as to limit the axial displacement of the first driven shaft or the second driven shaft;

the positioning bolt penetrates through the first driven shaft or the second driven shaft to be connected with the shaft end plate;

the utility model discloses a take-up and take-up device, including box, lifting connecting plate, tensioning bolt, lifting connecting plate, driven sprocket, lifting connecting plate, the laminating of the outside of box has the lifting connecting plate, be equipped with the through-hole on the face of lifting connecting plate for wear to establish first input shaft or the second input shaft, the lifting connecting plate is being close to driven sprocket one end sets up the screw hole, be equipped with the tensioning plate on the lateral wall between lifting connecting plate and the driven sprocket, be equipped with the through-hole on the tensioning plate, make with wearing to establish tensioning bolt the tensioning bolt stretches into.

10. A paving machine, comprising:

a sprocket box according to any one of claims 1 to 9;

the spiral material distributing devices are arranged on two sides of the chain wheel box;

the first driven shaft and the second driven shaft of the chain wheel box are respectively connected with the spiral material distributing device on the corresponding side so as to drive the spiral material distributing device to act.