CN107814156B - Rail bending device suitable for monorail conveyor - Google Patents
Rail bending device suitable for monorail conveyor Download PDFInfo
- Publication number
- CN107814156B CN107814156B CN201711245908.9A CN201711245908A CN107814156B CN 107814156 B CN107814156 B CN 107814156B CN 201711245908 A CN201711245908 A CN 201711245908A CN 107814156 B CN107814156 B CN 107814156B
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- jack
- supporting rod
- guide rail
- rollers
- rail
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- 238000005452 bending Methods 0.000 title claims abstract description 52
- 238000000034 method Methods 0.000 claims abstract description 13
- 230000008569 process Effects 0.000 claims abstract description 12
- 229910003460 diamond Inorganic materials 0.000 claims abstract description 11
- 239000010432 diamond Substances 0.000 claims abstract description 11
- 230000008859 change Effects 0.000 claims description 7
- 238000005096 rolling process Methods 0.000 claims description 6
- 230000009471 action Effects 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 2
- 229910052782 aluminium Inorganic materials 0.000 claims description 2
- 238000012544 monitoring process Methods 0.000 claims description 2
- 239000010959 steel Substances 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 238000003860 storage Methods 0.000 description 4
- 238000001125 extrusion Methods 0.000 description 3
- 239000002420 orchard Substances 0.000 description 3
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011896 sensitive detection Methods 0.000 description 1
- 238000012876 topography Methods 0.000 description 1
Classifications
-
- 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
- B65G35/00—Mechanical conveyors not otherwise provided for
Abstract
The invention discloses a rail bending device suitable for a monorail conveyor, which comprises an isosceles trapezoid working frame, rollers, a jack and a level meter, wherein two rollers are fixed at two ends of a long side of the working frame, the level meter is fixed on a short side of the working frame, the jack is a diamond jack, the jack is arranged on the short side of the working frame, a power output end of the jack is positioned on a symmetrical central plane of the isosceles trapezoid working frame, and the power output end moves along the direction of a symmetrical axis of the jack. The device is used for manufacturing the bent rail, has simple process and high yield, and the formed bent rail has diversified bending radiuses, high rail precision and good strength, and ensures the stability of the rail in conveying work.
Description
Technical Field
The invention relates to a construction auxiliary device for rail transportation, in particular to a detachable portable rail bending device.
Background
With the continuous development of science and technology in recent years, single-track and double-track conveyors are widely used in orchards. However, the orchards are often in hilly and hilly areas and have complex topography, and the straight transportation rail often cannot meet the requirement of transportation, so that a curved rail structure matched with a conveyor is inevitably required to be arranged. The complex terrains of the orchard have high requirements on the track size and the size and curvature of the bent rail, the whole bent section moment of the traditional track bent rail is large, the manufacturing process is difficult, and the yield is low; the bending rail structure formed by combining the separated bending rail parts is difficult and complex in process, low in precision, poor in rail strength and the like. Therefore, the rail bending device in the prior art has the advantages of complex structure, high manufacturing cost, easy damage and high later maintenance cost; the operability is poor, and a plurality of people or professional technicians are required to operate the device, so that the device is inconvenient to use.
Patent ZL2016209663372 discloses a logistics conveying track bending device, in particular to a sub-section track which is arranged on a fixed split track structure, and the sub-section track is aligned, twisted and fastened by utilizing bolt connecting pieces on a plurality of corresponding mounting holes which are uniformly distributed, so that the sub-section track is clung to two inner side cambered surfaces of the fixed split track structure; however, the split-section track is split, a plurality of parts are required to be assembled, and the matching precision is difficult to ensure; the splicing parts are standard parts, namely the bending angles of the parts are fixed, the track formed by the splicing parts is a track with a preset angle, the flexibility is poor, and the bending angles can not be adjusted according to actual conditions; the combined device has the advantages of complex structure, difficult operation, high manufacturing cost and poor strength and stability of the combined bent rail; for farms with complex terrain structures, the device is difficult to meet the requirements.
The patent 2012207051763 discloses a spiral rail bending machine, including operation panel, fixing base, screw jack, jack fixation card, square piece, arc piece, scale, when carrying out the bending action, place the track between arc piece 6 and square piece 5, utilize screw jack's pressure to carry out crooked track, change the arc piece according to different track models. However, the rail manufactured by the invention has low precision and poor bending stability, and the operation process is unstable and is easy to be interfered and influenced by the outside, so that the bending quality is influenced.
Disclosure of Invention
In order to solve the problems, the invention provides the rail bending device which is simple in manufacturing process, high in yield, high in precision, high in strength and low in cost and is suitable for the monorail conveyor.
The technical scheme for solving the technical problems is as follows: the utility model provides a curved rail device suitable for monorail transport machine, the device includes isosceles trapezoid work frame, gyro wheel, jack and spirit level, the long limit both ends of work frame are fixed with two gyro wheels, be fixed with the spirit level on the minor face of work frame, the jack is diamond jack, the jack sets up in the minor face of work frame, the power take off end of jack is located on the symmetry central plane of isosceles trapezoid work frame, and the power take off end removes along the symmetry axis direction of jack.
Further, isosceles trapezoid work frame includes first bracing piece, second bracing piece, third bracing piece and fourth bracing piece, and first bracing piece and fourth bracing piece level set up, and the both ends of first bracing piece link to each other with the one end of second bracing piece and third bracing piece respectively through the hex bolts, and the length of second bracing piece and third bracing piece equals and outside slope sets up, and the both ends of fourth bracing piece are connected with the other end of second bracing piece and third bracing piece through the hex bolts, and four spinal branch vaulting poles are connected into isosceles trapezoid work frame structure.
Further, the material of the supporting rod is steel material or aluminum material.
Further, the second support rod and the third support rod are arranged in the same plane, the first support rod and the fourth support rod are respectively arranged on two sides of the second support rod and the third support rod, the level gauge is fixed in a central groove on the side edge of the first support rod, and the two rollers are arranged on the same side as the first support rod.
Further, the level gauge is fixed in the central groove of the side edge of the first supporting rod, the idler wheels are connected with the two ends of the fourth supporting rod through hexagon bolts, and the center of the level gauge is positioned on the symmetrical center plane of the two idler wheels.
Further, the jack is a diamond electric jack and comprises a motor, a plug, four supporting arms and a screw rod structure, wherein the plug comprises an upper plug and a lower plug, and the four supporting arms are sequentially hinged end to form a diamond; the upper ends of the two upper supporting arms are hinged with the upper plug, and the lower ends of the two lower supporting arms are hinged with the lower plug; the left two support arms are hinged through a left hinge shaft, and the right two support arms are hinged through a right hinge shaft; the screw rod structure comprises a screw rod and a threaded hole arranged on the right hinge shaft; the motor is fixed on the left hinge shaft, one end of the screw rod is connected with the main shaft of the motor, and the other end of the screw rod penetrates through a threaded hole on the right hinge shaft to be in threaded connection with the screw rod; the upper top is fixedly connected with the short side of the working frame, and the lower top forms a power output end of the jack.
Further, the device still includes battery and signal receiver, be equipped with the mounting panel on the left side articulated shaft, the battery is installed in one side of left side articulated shaft, and the motor is fixed in the opposite side of mounting panel, and signal receiver passes through hexagonal bolt fastening in one side of motor, this signal receiver and motor signal connection.
Further, the lower top of the jack is provided with a fixed groove, the wheel body of the idler wheel is provided with a groove, and the widths of the fixed groove and the groove are matched with the side surface of the guide rail in height.
The invention also includes a method for bending a track by a rail bending device suitable for a monorail conveyor, comprising the steps of: before the track bending operation is executed, the track bending device is placed above the guide rail in parallel, and the two side surfaces of the guide rail are respectively aligned with the power output end of the jack and the roller; starting the jack, wherein the power output end of the jack moves towards the direction close to the guide rail until the power output end acts on the inner side surface of the guide rail, and the two rollers act on the outer side surface of the guide rail; along with the further forward movement of the power output end of the jack, the guide rail takes the two idler wheels as fulcrums and gradually bends towards one side of the power output end of the jack, in the bending process, the contact position of the idler wheels and the guide rail changes, and the rolling realizes the position change by rolling on the guide rail; in the bending operation process, a level gauge is used for detecting whether the guide rail is in a horizontal state.
Compared with the prior art, the invention can realize the following beneficial effects:
1. the bending rail manufactured by the device has high precision, the bending rail is ensured to be positioned in an absolute horizontal position in the bending process by the level gauge, the power output end of the jack and the two rollers form a closed triangular force application mechanism, the double-sided extrusion effect on the rail is realized, the labor is saved, the rail can be synchronously bent by taking the power output end of the jack as a center point and the rollers on the two sides, compared with the bending mode in which one end is taken as a fixed point and the other end is taken as a free bending point in the prior patent 2012207051763, the bending mode has the advantages that the swing amplitude of the guide rail is smaller, the efficiency is higher, the bending part is smoother, the curvature is consistent, and the local abrupt bending mode does not appear, so that the service life of the guide rail is shortened due to stress concentration is avoided.
2. The component parts of this device are all commonly used mechanical parts, and its cost is low and easily obtains, and the person skilled in the art can install by oneself and assemble this part to can be according to the specification of guide rail, after the spare part of different specifications is selected by oneself, assemble the use. The assembled rail bending device is of an integral structure, good in portability and easy to operate, and automatic control and operability of the machine are further improved.
3. The device is used for manufacturing the bent rail, has simple process and high yield, the formed bent rail has diversified bending radius, high rail precision and good strength, and can synchronously bend the top surface, the side surface and the bottom surface of the rail, thereby ensuring the stability of the rail in conveying work.
Drawings
FIG. 1 is a schematic diagram of the operation of a rail bending apparatus of the present invention adapted for use with a monorail transport;
FIG. 2 is an isometric view of a rail bending apparatus of the present invention adapted for use with a monorail transport;
FIG. 3 is a left side view of a track bending device of the present invention suitable for use with a monorail conveyor.
Detailed Description
The invention will be described in further detail with reference to the drawings and specific embodiments.
The rail bending device for the monorail conveyor is shown in fig. 1-3, and comprises a first supporting rod 1, a second supporting rod 2, a third supporting rod 3, a fourth supporting rod 4, a level meter 5, an electric jack 6, a storage battery 7, a roller 8, a roller 9, a motor 10, a signal receiver 11 and the like. A guide rail 12 and a supporting leg 13 are also arranged, and the guide rail 12 is fixed on the ground through the supporting leg 13.
The first bracing piece 1 level sets up, and the both ends of first bracing piece 1 pass through the hex bolts respectively with the one end of second bracing piece 2 and third bracing piece 3 link to each other, and the length of second bracing piece 2 and third bracing piece 3 equals and outside slope setting, and the level setting of fourth bracing piece 4, and the both ends of fourth bracing piece 4 are connected with the other end of second bracing piece 2 and third bracing piece 3 through the hex bolts, and four spinal branch vaulting poles are connected into isosceles trapezoid work frame structure. The second support rod 2 and the third support rod 3 are arranged in the same plane, and the first support rod 1 and the fourth support rod 4 are respectively arranged on the same side or two sides of the second support rod 2 and the third support rod 3. The level 5 is fixed in the central groove at the side of the first support bar 1.
The top of the electric jack 6 is fixed in the mounting plate at the bottom of the first supporting rod 1. The jack is a diamond electric jack and comprises an upper top 19, a lower top 18, an upper left support arm 15, a lower left support arm 16, an upper right support arm 14 and a lower right support arm 17 (shown in figure 3), and the four support arms are sequentially hinged end to form a diamond. The upper ends of the upper left support arm 15 and the upper right support arm 14 are hinged with an upper plug, and the lower ends of the lower left support arm 16 and the lower right support arm 17 are hinged with a lower plug 18; the lower end of the upper left supporting arm 15 is hinged with the upper end of the lower left supporting arm 16 through a left hinging shaft, and the lower end of the upper right supporting arm 14 is hinged with the upper end of the lower right supporting arm 17 through a right hinging shaft; the left hinge shaft and the right hinge shaft are connected by a screw 20. The left hinge shaft of the jack is provided with a mounting plate, the storage battery is fixed on the side face of the jack through the mounting plate, the motor 10 is fixed on the other side of the mounting plate, one end of the screw rod 20 is connected with a main shaft of the motor, the other end of the screw rod is connected with the right hinge shaft through threads, the motor 10 can drive the screw rod 20 to rotate, and the shrinkage of the diamond jack is further controlled. The upper top 19 of the jack is fixedly connected with the short side of the working frame, and the lower top 18 forms a power output end of the jack.
A signal receiver 11 is further arranged, the signal receiver 11 is fixed on one side of the motor through a hexagonal bolt, and the signal receiver is in signal connection with the motor. The signal receiver 11 is arranged to realize remote control operation, specifically, when in operation, a starting action instruction is sent out through the remote controller, the signal receiver 11 controls the motor to work after receiving remote sensing signals of the remote controller, and in the bending process, after the guide rail is bent to a required degree, the motor can be controlled to stop working through the remote controller, so that the bending radius of the guide rail can be controlled more conveniently, and the bending operation is more convenient.
The lower top of jack department is provided with the fixed slot, and the width of fixed slot and the high phase-match of guide rail side to make lower top and guide rail can better cooperation and location when crooked operation, make the crooked more accurate.
The rollers 8 and 9 are connected to the joints of the second support rod 2, the third support rod 3 and the fourth support rod 4 through hexagon bolts, the connecting lines of the two rollers are parallel to the fourth support rod 4, and the two rollers are arranged on the same side as the first support rod 1. The groove is formed in the wheel body of the roller, the width of the groove is matched with the side face height of the guide rail, the roller can be accurately matched with the guide rail, and bending accuracy is improved. And, the first bracing piece 1 sets up to the minor face for fixed spirit level, make the center of spirit level be in the symmetry central plane of two gyro wheels on, whether sensitive detection extrusion structure and curved track are in horizontal position in the course of the work. The fourth supporting rod 4 is arranged to be a long side, the roller is arranged on the long side, and the limitation of the extrusion force to the bending rail direction is realized to the maximum extent.
The working principle of the device is as follows:
the device is placed in parallel above the guide rail 12 such that the second support bar 2, the third support bar 3 and the fourth support bar 4 are placed in the upper space of the guide rail. The power output end of the jack and the idler wheels are located on two sides of the guide rail, one side of the guide rail is embedded into the fixed groove at the bottom of the jack, the other side of the guide rail is embedded into the groove of the idler wheels, and the first support rod 1 is arranged in the horizontal direction.
When the track bending operation is executed, a starting action command is sent out through the remote controller to control the start of the operation, the signal receiver 11 receives remote sensing signals of the remote controller, the electric jack is driven by the storage battery to start to operate, the shape of the diamond jack is changed, the distance between the power output end of the jack and the roller is continuously reduced, the power output end of the jack moves towards the direction close to the guide rail until acting on the inner side surface of the guide rail, the two rollers act on the outer side surface of the guide rail, and along with the further forward movement of the power output end of the jack, the guide rail gradually bends towards one side of the power output end of the jack by taking the two roller positions as fulcrums until the guide rail is extruded. In the clamping process of the jack and the rollers, continuously monitoring the information of the level, adjusting the horizontal placement position of the device according to the information, ensuring that the guide rail defined by the rollers and the fixed grooves of the jack is in an absolute horizontal position, and adjusting the relative position relation between the two rollers and the guide rail of the device according to the shape and the direction of the guide rail required to be bent, so that the contact position of the rollers and the guide rail is changed, and the position change is realized by rolling on the guide rail; the limitation of the bending direction of the guide rail is realized through the combined action of the power output end of the jack and the grooves of the roller. When the roller and the jack adjust the guide rail to a predetermined curvature, the positional relationship is maintained for a certain time until the degree of curvature of the guide rail is stabilized. After the bending operation at a certain position is completed, a stopping instruction is sent out through the remote controller, the signal receiver 11 receives remote sensing signals of the remote controller, and the storage battery drives the electric jack to change shape, so that the distance between the power output end of the jack and the roller is continuously increased until the guide rail is not extruded. At this time, the device can slide on the guide rail to the next working position through the roller, and also can move out of the guide rail device, and the device is directly placed at the next working position to start the next bending operation.
The embodiments of the present invention are not limited thereto, and the present invention may be modified, replaced or altered in various other ways by using the general knowledge and conventional means in the art according to the above-mentioned aspects of the present invention without departing from the basic technical idea of the present invention, and all the modifications and alterations fall within the scope of the present invention.
Claims (3)
1. The utility model provides a curved rail device suitable for monorail transport machine, the device includes isosceles trapezoid work frame, gyro wheel, jack and spirit level, its characterized in that: two rollers are fixed at two ends of the long side of the working frame, a level meter is fixed on the short side of the working frame, the jack is a diamond jack, the jack is arranged on the short side of the working frame, the power output end of the jack is positioned on the symmetry center plane of the isosceles trapezoid working frame, and the power output end moves along the symmetry axis direction of the jack;
the isosceles trapezoid working frame comprises a first supporting rod, a second supporting rod, a third supporting rod and a fourth supporting rod, wherein the first supporting rod and the fourth supporting rod are horizontally arranged, two ends of the first supporting rod are respectively connected with one ends of the second supporting rod and one end of the third supporting rod through hexagonal bolts, the lengths of the second supporting rod and the third supporting rod are equal, the second supporting rod and the third supporting rod are arranged in an outward inclined mode, two ends of the fourth supporting rod are connected with the other ends of the second supporting rod and the third supporting rod through hexagonal bolts, and the four supporting rods are connected into an isosceles trapezoid working frame structure;
the level gauge is fixed in a central groove at the side edge of the first supporting rod, the idler wheels are connected with the two ends of the fourth supporting rod through hexagon bolts, and the center of the level gauge is positioned on the symmetrical center plane of the two idler wheels;
the jack is a diamond electric jack and comprises a motor, a plug, four supporting arms and a screw rod structure, wherein the plug comprises an upper plug and a lower plug, and the four supporting arms are sequentially hinged end to form a diamond; the upper ends of the two upper supporting arms are hinged with the upper plug, and the lower ends of the two lower supporting arms are hinged with the lower plug; the left two support arms are hinged through a left hinge shaft, and the right two support arms are hinged through a right hinge shaft; the screw rod structure comprises a screw rod and a threaded hole arranged on the right hinge shaft; the motor is fixed on the left hinge shaft, one end of the screw rod is connected with the main shaft of the motor, and the other end of the screw rod penetrates through a threaded hole on the right hinge shaft to be in threaded connection with the screw rod; the upper jack is fixedly connected with the short side of the working frame, and the lower jack forms a power output end of the jack;
the lower top of the jack is provided with a fixed groove, the wheel body of the roller is provided with a groove, and the widths of the fixed groove and the groove are matched with the heights of the side surfaces of the guide rail;
the second supporting rod and the third supporting rod are arranged in the same plane, the first supporting rod and the fourth supporting rod are respectively arranged at two sides of the second supporting rod and the third supporting rod, the level gauge is fixed in a central groove at the side edge of the first supporting rod, and the two rollers are arranged at the same side as the first supporting rod;
before the track bending operation is executed, the track bending device is placed above the guide rail in parallel, and the two side surfaces of the guide rail are respectively aligned with the power output end of the jack and the roller; starting the jack, wherein the power output end of the jack moves towards the direction close to the guide rail until the power output end acts on the inner side surface of the guide rail, and the two rollers act on the outer side surface of the guide rail; along with the forward movement of the power output end of the jack, the guide rail gradually bends towards one side of the power output end of the jack by taking the positions of the two rollers as fulcrums, and in the bending process, the contact positions of the rollers and the guide rail change, and the rolling realizes the position change by rolling on the guide rail; in the bending operation process, detecting whether the guide rail is in a horizontal state by using a level gauge;
in the clamping process of the jack and the rollers, continuously monitoring the information of the level, adjusting the horizontal placement position of the device according to the information, ensuring that the rollers are positioned at the horizontal position with the guide rail defined by the fixed groove of the jack, and adjusting the relative position relationship between the two rollers of the device and the guide rail according to the shape and the direction of the guide rail required to be bent, so that the contact position of the rollers and the guide rail is changed, and the rollers realize position change by rolling on the guide rail; the limitation of the bending direction of the guide rail is realized through the combined action of the power output end of the jack and the grooves of the roller; when the rollers and jacks adjust the guide rail to a predetermined curvature, the positional relationship is maintained for a while until the degree of curvature of the guide rail reaches a steady state.
2. A rail bending apparatus for a monorail transport as defined in claim 1, wherein: the supporting rod is made of steel materials or aluminum materials.
3. A rail bending apparatus for a monorail transport as defined in claim 1, wherein: the device still includes battery and signal receiver, be equipped with the mounting panel on the left side articulated shaft, the battery is installed in one side of mounting panel, and the motor is fixed in the opposite side of mounting panel, and signal receiver passes through hexagon bolt fastening in one side of motor, this signal receiver and motor signal connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711245908.9A CN107814156B (en) | 2017-11-30 | 2017-11-30 | Rail bending device suitable for monorail conveyor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711245908.9A CN107814156B (en) | 2017-11-30 | 2017-11-30 | Rail bending device suitable for monorail conveyor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107814156A CN107814156A (en) | 2018-03-20 |
| CN107814156B true CN107814156B (en) | 2023-12-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711245908.9A Active CN107814156B (en) | 2017-11-30 | 2017-11-30 | Rail bending device suitable for monorail conveyor |
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| CN (1) | CN107814156B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109573496A (en) * | 2018-11-14 | 2019-04-05 | 江苏肯帝亚木业有限公司 | Floor processing guide rail transfer device |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2111877A (en) * | 1981-12-23 | 1983-07-13 | Stuart Basil Sherman | Curtain track |
| CN201049872Y (en) * | 2007-03-07 | 2008-04-23 | 合肥天健科技有限公司 | Remote control device for electric jack |
| CN202199634U (en) * | 2011-07-15 | 2012-04-25 | 天津曹氏传动机械制造有限公司 | Reinforced pipe bender |
| CN202343667U (en) * | 2011-08-15 | 2012-07-25 | 刘全义 | Tube rolling machine |
| CN202984377U (en) * | 2012-12-25 | 2013-06-12 | 济宁市众力矿山设备制造有限公司 | Mine rail-bending operation machine |
| CN105195573A (en) * | 2015-10-27 | 2015-12-30 | 高忠青 | Automated steel pipe bending machining device |
| CN206343484U (en) * | 2016-12-16 | 2017-07-21 | 绍兴上虞九阳风机有限公司 | A kind of veneer reeling machine |
| CN207737985U (en) * | 2017-11-30 | 2018-08-17 | 华东交通大学 | A kind of bending track device suitable for monorail conveyer |
-
2017
- 2017-11-30 CN CN201711245908.9A patent/CN107814156B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2111877A (en) * | 1981-12-23 | 1983-07-13 | Stuart Basil Sherman | Curtain track |
| CN201049872Y (en) * | 2007-03-07 | 2008-04-23 | 合肥天健科技有限公司 | Remote control device for electric jack |
| CN202199634U (en) * | 2011-07-15 | 2012-04-25 | 天津曹氏传动机械制造有限公司 | Reinforced pipe bender |
| CN202343667U (en) * | 2011-08-15 | 2012-07-25 | 刘全义 | Tube rolling machine |
| CN202984377U (en) * | 2012-12-25 | 2013-06-12 | 济宁市众力矿山设备制造有限公司 | Mine rail-bending operation machine |
| CN105195573A (en) * | 2015-10-27 | 2015-12-30 | 高忠青 | Automated steel pipe bending machining device |
| CN206343484U (en) * | 2016-12-16 | 2017-07-21 | 绍兴上虞九阳风机有限公司 | A kind of veneer reeling machine |
| CN207737985U (en) * | 2017-11-30 | 2018-08-17 | 华东交通大学 | A kind of bending track device suitable for monorail conveyer |
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| CN107814156A (en) | 2018-03-20 |
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