CN107218312B - Hinge type coupling and conveying device - Google Patents
Hinge type coupling and conveying device Download PDFInfo
- Publication number
- CN107218312B CN107218312B CN201710569053.9A CN201710569053A CN107218312B CN 107218312 B CN107218312 B CN 107218312B CN 201710569053 A CN201710569053 A CN 201710569053A CN 107218312 B CN107218312 B CN 107218312B
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- hinge
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- hinged
- conveying
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- 230000008878 coupling Effects 0.000 title claims abstract description 18
- 238000010168 coupling process Methods 0.000 title claims abstract description 18
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 18
- 230000007246 mechanism Effects 0.000 claims description 18
- 230000005540 biological transmission Effects 0.000 claims description 7
- 230000000903 blocking effect Effects 0.000 abstract description 4
- 238000010438 heat treatment Methods 0.000 abstract description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D3/00—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
- F16D3/02—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive adapted to specific functions
- F16D3/06—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive adapted to specific functions specially adapted to allow axial displacement
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G23/00—Driving gear for endless conveyors; Belt- or chain-tensioning arrangements
- B65G23/02—Belt- or chain-engaging elements
- B65G23/04—Drums, rollers, or wheels
- B65G23/06—Drums, rollers, or wheels with projections engaging abutments on belts or chains, e.g. sprocket wheels
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transmission Devices (AREA)
Abstract
The invention provides a hinge type coupling and a conveying device, and belongs to the technical field of heat treatment furnaces. A hinged coupling comprising: the first connecting shaft, the second connecting shaft and at least one hinge group. The first connecting shaft and the second connecting shaft are coaxially arranged. The hinge group comprises at least two hinges, the adjacent hinges are mutually hinged, the hinges are hinged with the first connecting shaft and the second connecting shaft, and the rotation axis of the hinged position is basically vertical to the axis of the first connecting shaft. The axial movement and axial rotation can be transmitted, and the problems of blocking and stopping of the axial movement are overcome. The conveying device comprises the hinged shaft connector, a first conveying sprocket and a second conveying sprocket, wherein the first conveying sprocket is fixedly sleeved on the first connecting shaft, and the second conveying sprocket is fixedly sleeved on the first connecting shaft. Has the characteristic of high conveying efficiency.
Description
Technical Field
The invention relates to the technical field of heat treatment furnaces, in particular to a hinge type coupling and a conveying device.
Background
In a chain-type conveying heat treatment furnace, the distance between two conveying chains needs to be adjusted according to the size of a workpiece to be conveyed. At present, the axial rotation and radial movement of the chain wheel are mainly realized by adopting the forms of an external spline type transmission shaft and an internal spline type conveying chain wheel.
However, in a large heat treatment furnace, the spline shaft is required to be longer than two meters, the machining precision is high, and the machining difficulty is high. And the internal spline of the transmission shaft and the internal spline of the conveying sprocket are easy to wear and deform, so that axial movement is blocked and is blocked. The conveying chain wheel and the transmission shaft need to be replaced at the same time, and the use and maintenance cost is high.
Disclosure of Invention
The invention aims to provide a hinge type coupling which can transmit radial movement and axial rotation and overcome the problems of axial movement blocking and stopping.
Another object of the present invention is to provide a conveying apparatus, which includes the hinge-type coupling described above, and has a characteristic of high conveying efficiency.
The invention is realized in the following way:
a hinged coupling comprising: the first connecting shaft, the second connecting shaft and at least one hinge group.
The first connecting shaft and the second connecting shaft are coaxially arranged.
The hinge group comprises at least two hinges, the adjacent hinges are mutually hinged, the hinges are hinged with the first connecting shaft and the second connecting shaft, and the rotation axis of the hinged position is basically vertical to the axis of the first connecting shaft.
Further, in a preferred embodiment of the present invention, the hinge assembly includes a first hinge and a second hinge, one end of the first hinge is hinged to the first connecting shaft, the second hinge is hinged to the second connecting shaft, and the other end of the first hinge is hinged to the other end of the second hinge.
Further, in a preferred embodiment of the present invention, the length of the first hinge is substantially equal to the length of the second hinge.
Further, in a preferred embodiment of the present invention, the first connecting sleeve is provided with a first connecting disc, the first hinge is hinged with the first connecting disc, the second connecting sleeve is provided with a second connecting disc, and the second hinge is hinged with the second connecting disc.
Further, in the preferred embodiment of the invention, the shape and the size of the first connecting disc are the same as those of the second connecting disc, the hinge joint of the first hinge and the first connecting disc is a first connecting part, the hinge joint of the second hinge and the second connecting disc is a second connecting part, and the position of the first connecting part on the first connecting disc corresponds to the position of the second connecting part on the second connecting disc.
Further, in a preferred embodiment of the present invention, the hinge-type coupling includes four hinge groups, which are uniformly spaced along the circumferences of the first and second coupling plates.
The conveying device comprises the hinged shaft connector, a first conveying sprocket and a second conveying sprocket, wherein the first conveying sprocket is fixedly sleeved on the first connecting shaft, and the second conveying sprocket is fixedly sleeved on the first connecting shaft.
Further, in a preferred embodiment of the present invention, the conveying device further comprises a driving mechanism, wherein a power output shaft of the driving mechanism is in transmission connection with the first connecting shaft, and the driving mechanism is configured to drive the first connecting shaft to rotate.
Further, in a preferred embodiment of the present invention, the conveying device further includes a mounting seat, a guiding portion is disposed on the mounting seat, the second connecting shaft is rotationally connected with the sliding component, and the guiding portion is slidingly connected with the sliding component.
Further, in a preferred embodiment of the invention, the drive mechanism is configured to be fixed relative to the mount.
The beneficial effects of the invention are as follows: a hinge type coupling comprises a first connecting shaft, a second connecting shaft and at least one hinge group, wherein the first connecting shaft and the second connecting shaft are coaxially connected. The hinge group can be driven to rotate along with the rotation of the first connecting shaft by driving the first connecting shaft to rotate, and then the second connecting shaft is driven to rotate, because the first connecting shaft and the second connecting shaft are coaxially arranged, the first connecting shaft and the second connecting shaft are coaxially rotated. The hinge group comprises at least two hinges, the adjacent hinges are hinged with each other, the hinges are hinged with the first connecting shaft and the second connecting shaft, the second connecting shaft is driven to axially move, and the distance between the first connecting shaft and the second connecting shaft can be changed due to the effect of the hinge group. The axial movement and axial rotation can be transmitted, and the problems of blocking and stopping of the axial movement are overcome.
The conveying device comprises the hinged shaft connector and has the characteristic of high conveying efficiency.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some examples of the present invention and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of a hinge coupling according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a conveying device according to an embodiment of the present invention;
fig. 3 is a schematic structural view of a conveying device in a first state according to an embodiment of the present invention
Fig. 4 is a schematic structural view of a conveying device in a second state according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a conveying device according to an embodiment of the present invention.
Icon: 10-a conveying device; 100-hinge type coupling; 110-a first connecting shaft; 111-a first connection disc; 112-a second land; 120-a second connecting shaft; 130-a hinge set; 131-a first hinge; 131 a-a first connection; 132-a second hinge; 132 a-second one a connection part; 140-a driving mechanism; 150-a sliding assembly; 151-a first slider; 152-a second slider; 153-first roller; 154-a second roller; 160-mounting seats; 161-a guide; 171-a first conveying sprocket; 172-a second conveying sprocket; 181-a first bearing; 182-a second bearing; 183-third bearing; 184-fourth bearing; 200-a cross beam; 300-driving means; 310-motor; 311-gear; 320-rack; 330-driven wheel.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, based on the embodiments of the invention, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the invention. Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, based on the embodiments of the invention, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the invention.
In the description of the present invention, it should be understood that the terms "vertical", "lateral", "length", "upper", "lower", "left", "right", "etc. indicate an azimuth or a positional relationship based on that shown in the drawings, it is used merely for convenience in describing the invention and to simplify the description and does not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operate in a particular orientation, and thus should not be construed as limiting the invention.
Furthermore, the terms "first," "second," "third," "fourth" and the like are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", "a third" and a fourth "may explicitly or implicitly include one or more such feature. In the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
In the present invention, unless explicitly specified and limited otherwise, the terms "disposed," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present invention, unless explicitly specified and limited otherwise, a first feature being "under" a second feature includes a first feature being directly under and obliquely under the second feature, or simply means that the first feature is at a level less than the second feature.
Examples
The present embodiment provides a hinge coupling 100, please refer to fig. 1, including: a first connection shaft 110, a second connection shaft 120, and at least one hinge group 130.
The first connection shaft 110 is coaxially disposed with the second connection shaft 120. The hinge group 130 includes at least two hinges, adjacent hinges are hinged to each other, and the hinges are hinged to the first and second connection shafts 110 and 120, and a rotation axis of the hinge is substantially perpendicular to an axis of the first connection shaft 110.
By driving the first connecting shaft 110 to rotate, the hinge assembly 130 can be driven to rotate by the rotation of the first connecting shaft 110, and the second connecting shaft 120 can be driven to rotate by the rotation of the first connecting shaft 110, because the first connecting shaft 110 and the second connecting shaft 120 are coaxially arranged, the first connecting shaft 110 and the second connecting shaft 120 are coaxially rotated. The hinge assembly 130 includes at least two hinges, adjacent hinges are hinged to each other, and the hinges are hinged to the first connection shaft 110 and the second connection shaft 120, and by driving the second connection shaft 120 to move in the axial direction, the distance between the first connection shaft 110 and the second connection shaft 120 can be changed due to the hinge assembly 130. The first connecting shaft 110 and the second connecting shaft 120 may be driven to move in the axial direction at the same time, or the first connecting shaft 110 or the second connecting shaft 120 may be driven to move radially independently. In the present embodiment, it is employed that the second connecting shaft 120 is driven to individually perform radial movement.
Referring to fig. 1, in the present embodiment, the first connecting shaft 110 is located right of the second connecting shaft 120. In other embodiments, the first connection shaft 110 may also be located to the left of the second connection shaft 120.
It should be noted that the hinge group 130 includes at least two hinges, that is, two hinges, three hinges, and the like. In the present embodiment, the hinge group 130 includes two hinges. That is, the hinge group 130 includes a first hinge 131 and a second hinge 132, one end of the first hinge 131 is hinged with the first connection shaft 110, one end of the second hinge 132 is hinged with the second connection shaft 120, and the other end of the first hinge 131 is hinged with the other end of the second hinge 132. By the action of the first hinge 131 and the second hinge 132, coaxial rotation of the first connection shaft 110 and the second connection shaft 120 and a change in the interval between the first connection shaft 110 and the second connection shaft 120 can be achieved.
In the present embodiment, the length of the first hinge 131 is equal to the length of the second hinge 132. This has the advantage that the first and second connecting shafts 110 and 120 are more stable when rotated.
In addition, in the present embodiment, the first connection shaft 110 is sleeved with the first connection plate 111, the first hinge 131 is hinged with the first connection plate 111, the second connection shaft 120 is sleeved with the second connection plate 112, and the second hinge 132 is hinged with the second connection plate 112.
The first connection pad 111 and the second connection pad 112 have the same shape and size, and in this embodiment, the first connection pad 111 and the second connection pad 112 each have a circular cross section, and in other embodiments, the first connection pad 111 and the second connection pad 112 may have a rectangular shape, an elliptical shape, or the like. The hinge between the first hinge 131 and the first connection pad 111 is a first connection portion 131a, the hinge between the second hinge 132 and the second connection pad 112 is a second connection portion 132a, and the first connection portion 131a corresponds to the second connection portion 132a at the position of the first connection pad 111 and the second connection pad 112. That is, the plane of the rotation axis of the hinge is a symmetry plane, and the first hinge 131 and the first connecting portion 131a are symmetrical to the second hinge 132 and the second connecting portion 132a respectively. This has the advantage that axial rotation and movement in the radial direction between the first connection shaft 110 and the second connection shaft 120 can be transmitted more stably.
In the present embodiment, the hinge coupler 100 includes four hinge groups 130, and the four hinge groups 130 are uniformly spaced along the circumferential direction of the first and second connection plates 111 and 112. This also allows for a more stable transmission of axial rotation and movement in the axial direction between the first connection shaft 110 and the second connection shaft 120. It should be noted that, in the embodiment, the hinge type coupling 100 may also include three hinge groups 130 or more hinge groups 130, and the hinge groups 130 may be disposed at uniform intervals along the circumferential directions of the first connection pad 111 and the second connection pad 112, so that the balance of transmission may be increased.
The present embodiment also provides a conveying apparatus 10, referring to fig. 2 and 3, the conveying apparatus 10 includes a hinge shaft 100, a first conveying sprocket 171, a second conveying sprocket 172, a driving mechanism 140, and a mounting base 160.
The first conveying sprocket 171 is fixedly sleeved on the first connecting shaft 110, and the second conveying sprocket 172 is sleeved on the second connecting shaft 120. And the first conveying sprocket 171 is located at the right of the first connection plate 111, and the second conveying sprocket 172 is located at the left of the second connection plate 112.
The power output shaft of the driving mechanism 140 is in driving connection with the first connecting shaft 110, and the driving mechanism 140 is configured to drive the first connecting shaft 110 to rotate. In the present embodiment, the driving mechanism 140 is a speed reducer.
The mounting base 160 is provided with a guide portion 161, the second connecting shaft 120 is rotatably connected with the sliding assembly 150, and the guide portion 161 is slidably connected with the sliding assembly 150.
The first link shaft 110 is driven to rotate by the driving mechanism 140, and the rotation of the first link shaft 110 is transmitted to the second link shaft 120 through the first hinge 131 and the second hinge 132, so that the first link shaft 110 and the second link shaft 120 are coaxially rotated, thereby coaxially rotating the first conveying sprocket 171 and the second conveying sprocket 172. By driving the second connecting shaft 120 to move in the axial direction, the sliding assembly 150 slides in cooperation with the guide portion 161 of the mounting seat 160, smooth movement of the second connecting shaft 120 in the axial direction can be achieved, thereby achieving approaching or separating of the first conveying sprocket 171 and the second conveying sprocket 172 from each other.
In this embodiment, the drive mechanism 140 is configured to be fixed relative to the mount 160. I.e., only the second transfer sprocket 172 can be moved closer to or farther away from the first transfer sprocket 171. In other embodiments, the drive mechanism 140 may be configured to slide relative to the mount 160 such that both the first and second transfer sprockets 171, 172 are moved in an axial direction to effect movement of the first and second transfer sprockets 171, 172 toward and away from each other.
In the present embodiment, the sliding assembly 150 includes a first sliding member 151 and a second sliding member 152, the first sliding member 151 is rotatably connected to the second connection shaft 120 through a first bearing 181, and the second sliding member 152 is rotatably connected to the second connection shaft 120 through a second bearing 182. In addition, a first bearing 181 is provided on the left side of the second conveying sprocket 172, and a second bearing 182 is provided between the second conveying sprocket 172 and the second connecting disc 112.
Further, the first roller 153 is provided below the first slider 151, the second roller 154 is provided below the second slider 152, and the first roller 153, the second roller 154, and the guide portion 161 are engaged with each other to smoothly slide. And both the first bearing 181 and the second bearing 182 can play a certain supporting role on the second connection shaft 120.
In this embodiment, the conveying apparatus 10 further includes a third bearing 183 and a fourth bearing 184, the third bearing 183 and the fourth bearing 184 are rotatably connected to the first connecting shaft 110, and the third bearing 183 and the fourth bearing 184 are fixed on the mounting base 160. Wherein a third bearing 183 is provided between the first coupling disc 111 and the first conveying sprocket 171 and a fourth bearing 184 is provided between the first conveying sprocket 171 and the driving mechanism 140. The third bearing 183 and the fourth bearing 184 can each play a certain supporting role on the first connecting shaft 110.
Referring to fig. 4, the conveying device 10 further includes a cross beam 200 and a driving device 300, the driving device 300 includes a motor 310 and a rack 320, a gear 311 is fixedly sleeved on a power output shaft of the motor 310, and the gear 311 is meshed with the rack 320.
The first sliding member 151 and the second sliding member 152 are fixed to the cross beam 200, and the cross beam 200 is fixedly connected to the rack 320. Wherein the cross beam 200 is disposed horizontally and the rack 320 is disposed vertically. The other end of the cross beam 200 is connected to a driven wheel 330. The gear 311 is driven to rotate by the motor 310, so as to drive the rack 320 to move, and then drive the cross beam 200 and the sliding assembly 150 to move, thereby enabling the second transfer sprocket 172 to be moved closer to or farther away from the first transfer sprocket 171. Wherein the driven wheel 330 can realize the smooth movement of the cross beam 200. The conveying device 10 has the characteristic of high conveying efficiency, and overcomes the problem of axial movement blocking and stopping.
The conveying apparatus 10 of the present embodiment is operated such that the first link shaft 110 is driven to rotate by the driving mechanism 140, the rotation of the first link shaft 110 is transmitted to the second link shaft 120 through the first hinge 131 and the second hinge 132, and the coaxial rotation of the first link shaft 110 and the second link shaft 120 is achieved, thereby achieving the coaxial rotation of the first conveying sprocket 171 and the second conveying sprocket 172. The gear 311 is driven to rotate by the motor 310, so as to drive the rack 320 to move, and then drive the cross beam 200 and the sliding assembly 150 to move, and the sliding assembly 150 and the guiding part 161 of the mounting seat 160 slide in a matched manner, so that the second connecting shaft 120 can smoothly move in the axial direction, and the first conveying sprocket 171 and the second conveying sprocket 172 can be mutually close to or far away from each other.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, and various modifications and variations may be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (4)
1. A conveying device is characterized by comprising a hinged shaft connector, a first conveying chain wheel and a second conveying chain wheel;
the hinge coupling includes:
the first connecting shaft and the second connecting shaft are coaxially arranged; and
at least one hinge group comprising at least two hinges, wherein adjacent hinges are hinged with each other, the hinges are hinged with the first connecting shaft and the second connecting shaft, and the rotation axis of the hinge part is basically vertical to the axis of the first connecting shaft;
the first conveying chain wheel is fixedly sleeved on the first connecting shaft, and the second conveying chain wheel is fixedly sleeved on the first connecting shaft;
the conveying device further comprises a driving mechanism, wherein a power output shaft of the driving mechanism is in transmission connection with the first connecting shaft, and the driving mechanism is configured to drive the first connecting shaft to rotate;
the conveying device further comprises a mounting seat, a guide part is arranged on the mounting seat, the second connecting shaft is rotationally connected with the sliding component, and the guide part is in sliding connection with the sliding component;
the hinge group comprises a first hinge and a second hinge, one end of the first hinge is hinged with the first connecting shaft, the second hinge is hinged with the second connecting shaft, and the other end of the first hinge is hinged with the other end of the second hinge;
the length of the first hinge is basically equal to the length of the second hinge;
the first connecting shaft sleeve is provided with a first connecting disc, the first hinge is hinged with the first connecting disc, the second connecting shaft sleeve is provided with a second connecting disc, and the second hinge is hinged with the second connecting disc.
2. The conveying device according to claim 1, wherein the first connecting disc and the second connecting disc are identical in shape and size, a hinge joint of the first hinge and the first connecting disc is a first connecting portion, a hinge joint of the second hinge and the second connecting disc is a second connecting portion, and the first connecting portion corresponds to the second connecting portion in the position of the first connecting disc and the second connecting portion in the position of the second connecting disc.
3. The conveying device according to claim 2, wherein the hinge type coupling comprises four hinge groups, and the four hinge groups are uniformly spaced along the circumference of the first connecting disc and the second connecting disc.
4. A conveyor apparatus as in any one of claims 1-3 wherein the drive mechanism is configured to be fixed relative to the mount.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710569053.9A CN107218312B (en) | 2017-07-12 | 2017-07-12 | Hinge type coupling and conveying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710569053.9A CN107218312B (en) | 2017-07-12 | 2017-07-12 | Hinge type coupling and conveying device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107218312A CN107218312A (en) | 2017-09-29 |
| CN107218312B true CN107218312B (en) | 2023-12-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710569053.9A Active CN107218312B (en) | 2017-07-12 | 2017-07-12 | Hinge type coupling and conveying device |
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| Country | Link |
|---|---|
| CN (1) | CN107218312B (en) |
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| US4273240A (en) * | 1979-01-26 | 1981-06-16 | Becton, Dickinson And Company | Variable pitch sprockets for conveyor system |
| US4858751A (en) * | 1988-03-14 | 1989-08-22 | Rexnord Corporation | Wide chain conveyor assembly |
| EP0810169A1 (en) * | 1996-05-27 | 1997-12-03 | Tsubakimoto Chain Co. | Assembly of sprockets and a shaft for wide chain conveyor |
| JPH10101245A (en) * | 1996-09-27 | 1998-04-21 | Nippon Kararingu Kk | Printing device |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN107218312A (en) | 2017-09-29 |
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