CN109607412B - Secondary lifting mechanism of assembly trolley - Google Patents
Secondary lifting mechanism of assembly trolley Download PDFInfo
- Publication number
- CN109607412B CN109607412B CN201811539815.1A CN201811539815A CN109607412B CN 109607412 B CN109607412 B CN 109607412B CN 201811539815 A CN201811539815 A CN 201811539815A CN 109607412 B CN109607412 B CN 109607412B
- Authority
- CN
- China
- Prior art keywords
- mounting frame
- arm
- lifting
- wheel set
- scissor arm
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 230000007246 mechanism Effects 0.000 title claims abstract description 23
- 210000000078 claw Anatomy 0.000 claims abstract description 30
- 238000005096 rolling process Methods 0.000 claims abstract description 25
- 238000012423 maintenance Methods 0.000 claims description 4
- 230000003028 elevating effect Effects 0.000 claims description 2
- 238000009434 installation Methods 0.000 abstract description 13
- 238000010008 shearing Methods 0.000 description 12
- 230000006872 improvement Effects 0.000 description 7
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
- B66F7/06—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported by levers for vertical movement
- B66F7/065—Scissor linkages, i.e. X-configuration
- B66F7/0666—Multiple scissor linkages vertically arranged
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25H—WORKSHOP EQUIPMENT, e.g. FOR MARKING-OUT WORK; STORAGE MEANS FOR WORKSHOPS
- B25H1/00—Work benches; Portable stands or supports for positioning portable tools or work to be operated on thereby
- B25H1/14—Work benches; Portable stands or supports for positioning portable tools or work to be operated on thereby with provision for adjusting the bench top
- B25H1/16—Work benches; Portable stands or supports for positioning portable tools or work to be operated on thereby with provision for adjusting the bench top in height
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Structural Engineering (AREA)
- Handcart (AREA)
- Forklifts And Lifting Vehicles (AREA)
Abstract
The invention relates to a secondary lifting mechanism of an assembly trolley, which comprises a bottom mounting frame, wherein the bottom mounting frame is connected with one end of an inner shear arm, the other end of the inner shear arm is connected with an inner shear arm connecting shaft, two ends of the inner shear arm connecting shaft are connected with an inner shear arm rolling wheel set, the upper mounting frame is connected with one end of an outer shear arm, the other end of the outer shear arm is connected with the outer shear arm connecting shaft, two ends of the outer shear arm connecting shaft are connected with an outer shear arm rolling wheel set, the outer shear arm rolling wheel set is positioned between a lower wheel set guide plate and a lower mounting frame, the inner shear arm is connected with one end of a lifting connecting rod, the other end of the lifting connecting rod is fixed on the bottom mounting frame, lifting pulleys are arranged on the side edges of the lifting connecting rod, the middle of the outer shear arm connecting shaft is connected with one end of a fixing arm, and the bottom surface of the other end of the fixing arm is provided with a fixing claw. The invention can reduce the installation space and promote the lifting height.
Description
Technical Field
The invention relates to a secondary lifting mechanism of an assembly trolley, and belongs to the technical field of elevators.
Background
The most used trolley (slide plate) assembly line at present on the automobile assembly line belongs to ground conveying equipment, and workers complete the assembly of related parts on one assembly trolley in the assembly operation process. In modern automotive interiors or assembly lines, in order to improve the production efficiency of a whole automobile assembly workshop, a car body is often required to be lifted, so that assembly operations of seats, front and rear covers and the like are better facilitated for workers. At present, the lifting height of the lifting mechanism is often influenced by the space of the trolley, and the lifting stroke is not very large. The stroke of the lifting mechanism is mainly determined by the mechanical lowest height of the mechanism and the lifting and lifting stroke. The lowest height of the lifting mechanism is high, and the corresponding assembly trolley is also high, so that the trolley is too high, and a worker can not conveniently go up and down the trolley; the lifting stroke has a great relation with the space height below the trolley, and the larger the space is, the higher the lifting stroke is.
For the above reasons, the lifting height of the body on our assembly trolley is often greatly affected. The need for a lifting mechanism that reduces space utilization and also increases the height is becoming increasingly urgent.
Disclosure of Invention
The invention aims to provide a secondary lifting mechanism of an assembly trolley, which can solve the problem of measuring the groove position of a miniature bearing ring and can effectively, accurately and quickly detect the groove position size of the miniature bearing ring.
According to the technical scheme provided by the invention: the utility model provides a secondary elevating system of assembly platform truck, includes bottom mounting frame, the one end of interior arm is cut in bottom mounting frame connection, interior arm connecting axle is cut in the other end of interior arm is connected, interior arm rolling wheel group is connected at interior arm connecting axle's both ends, interior arm rolling wheel group is located between upper portion wheelset baffle and the upper portion mounting frame, the one end of outer arm is cut in upper portion mounting frame connection, outer arm connecting axle is connected to the other end of outer arm, outer arm rolling wheel group is connected at outer arm connecting axle's both ends, outer arm rolling wheel group be located the lower part wheelset baffle with between the lower part mounting frame, interior arm with be connected through intermediate junction axle in the middle of the outer arm, interior arm is last to be installed and lifts the rail wheelset, interior arm is connected and is lifted connecting rod one end, it fixes on bottom mounting frame to lift the connecting rod other end, it sets up the pulley to lift the side, outer arm connecting axle intermediate connection fixed arm one end, the fixed arm other end bottom surface sets up fixed jaw, the fixed jaw sets up with the fixed jaw on the bottom mounting frame.
As a further improvement of the present invention, the bottom mounting frame is connected to one end of the inner scissor arm by a bottom fulcrum assembly that includes a bottom fixed block and a bottom mounting pin.
As a further improvement of the invention, a wear-resistant guide block is arranged between the inner shear arm rolling wheel set and the upper mounting frame.
As a further improvement of the present invention, the upper mounting frame is connected to one end of the outer scissor arm by an upper pivot assembly that includes an upper fixed block and an upper mounting pin.
As a further improvement of the invention, a wear-resistant guide block is arranged between the outer shear arm rolling wheel set and the lower mounting frame.
As a further improvement of the present invention, the fixing claws include a primary rail-lifting fixing claw and a secondary rail-lifting fixing claw, the primary rail-lifting fixing claw being located on the left side of the secondary rail-lifting fixing claw.
As a further improvement of the invention, a limiting block is arranged on the upper mounting frame.
As a further improvement of the invention, a service bar is provided between the bottom mounting frame and the upper mounting frame.
Compared with the prior art, the invention has the following advantages:
1. the invention has simple structure, utilizes the lifting rail to lift the mechanism, and saves the cost of foundation construction.
2. The utility model discloses can reduce installation space, can promote again and rise the height.
Drawings
Fig. 1 is a schematic view of the closing structure of the present invention.
Fig. 2 is a schematic structural view of the present invention in a primary lifting state.
Fig. 3 is a schematic structural view of the present invention in a secondary lifting state.
Fig. 4 is a schematic side view of the present invention.
Fig. 5 is a schematic structural view of the bottom mounting frame 1 of the present invention.
Fig. 6 is a schematic structural view of the upper mounting frame 2 in the present invention.
Fig. 7 is a schematic structural view of the inner scissor arm 8 in the present invention.
Fig. 8 is a schematic side view of fig. 7.
Fig. 9 is a schematic view of the structure of the upper fulcrum assembly 3 of the present invention.
Fig. 10 is a schematic side view of fig. 9.
Fig. 11 is a schematic view of the structure of the bottom fulcrum assembly 4 of the present invention.
Fig. 12 is a schematic side view of fig. 11.
Fig. 13 is a schematic view of the structure of the lifting link 10 according to the present invention.
Fig. 14 is a schematic structural view of the fixing arm 11 in the present invention.
Reference numerals illustrate: the device comprises a bottom mounting frame 1, a bottom fixed block mounting position 1-1, a bottom wheel group guide plate mounting screw hole 1-2, a bottom wear-resistant guide block mounting screw hole 1-3, a lifting connecting rod mounting position 1-4, a claw type fixing pin 1-5, an upper mounting frame, an upper fixed block mounting position 2-1, an upper wheel group guide plate mounting screw hole 2-2, an upper wear-resistant guide block mounting screw hole 2-3, an upper supporting point assembly 3, an upper fixed block 3-1, an upper mounting pin 3-2, a bottom supporting point assembly 4, a bottom fixed block 4-1, a bottom mounting pin 4-2, a middle connecting shaft 5, an inner shear arm rolling wheel group 6, a rail lifting wheel group 7 and a connecting rod the inner shear arm 8, the bottom fixed end 8-1, the rail lifting wheel set mounting position 8-2, the lifting connecting rod mounting hole 8-3, the outer shear arm 9, the lifting connecting rod 10, the inner shear arm connecting shaft 10-1, the bottom plate mounting plate 10-2, the lifting pulley 10-3, the fixed arm 11, the primary rail lifting fixed claw 11-1, the secondary rail lifting fixed claw 11-2, the outer shear arm connecting shaft 12, the inner shear arm connecting shaft 13, the upper wheel set guide plate 14, the bottom wheel set guide plate 15, the wear-resistant guide block 16, the limiting block 17, the primary lifting rail 18, the secondary lifting rail 19, the walking trolley 20, the outer shear arm rolling wheel set 21 and the maintenance rod 22.
Detailed Description
The invention is further described below with reference to the specific drawings: as shown in figure 1, the secondary lifting mechanism of the assembly trolley comprises a bottom mounting frame 1, wherein the bottom mounting frame 1 is used for fixing one end of 2 sets of inner shearing arms 8 through a bottom fulcrum assembly 4 on the left side, the bottom fulcrum assembly 4 is shown in figures 11-12, the inner shearing arms 8 are shown in figures 7-8 and comprise bottom fixing ends 8-1, rail lifting wheel set mounting positions 8-2 and lifting connecting rod mounting holes 8-3, the bottom fixing ends 8-1 of the inner shearing arms 8 are mounted on the bottom fixing blocks 4-1 through bottom mounting pins 4-2, the bottom fixing blocks 4-1 are mounted on the bottom mounting frame 1 through bottom fixing block mounting positions 1-1, and connection between the inner shearing arms 8 and the bottom mounting frame 1 is achieved.
The other ends of the two sets of inner scissor arms 8 are connected through an inner scissor arm connecting shaft 13, two ends of the inner scissor arm connecting shaft 13 are respectively provided with one set of inner scissor arm rolling wheel set 6, an upper wheel set guide plate 14 is connected with an upper wheel set guide plate mounting screw hole 2-2 through a bolt and is fixed on the right side of the upper mounting frame 2, the inner scissor arm rolling wheel set 6 is positioned between the upper wheel set guide plate 14 and the upper mounting frame 2, and the inner scissor arm rolling wheel set can only roll back and forth in the transverse range between the upper wheel set guide plate mounting screw holes 2-2 due to the limit of the bolt. And a wear-resistant guide block 16 is also arranged between the inner shear arm rolling wheel set 6 and the upper mounting frame 2, and the wear-resistant guide block 16 is connected with the upper wear-resistant guide block mounting screw hole 2-3 through a bolt and is fixed on the upper mounting frame 2, so that the effect of reducing the wear of the upper mounting frame 2 is achieved.
The left side of the upper mounting frame 2 is provided with an upper fixing block mounting position 2-1, and as shown in fig. 9-10, the upper fulcrum assembly 3 includes an upper fixing block 3-1, an upper mounting pin 3-2, a bearing, and the like. The upper fixing block 3-1 is arranged on the upper fixing block installation position 2-1, and one end of the outer shearing arm 9 is connected to the upper fixing block 3-1 by the upper installation pin 3-2, so that the outer shearing arm 9 is connected with the upper installation frame 2.
The other ends of the two sets of outer scissor arms 9 are connected through an outer scissor arm connecting shaft 12, two ends of the outer scissor arm connecting shaft 12 are respectively provided with one set of outer scissor arm rolling wheel set 21, a bottom wheel set guide plate 15 is fixed on the right side of the bottom installation frame 1 through a bolt connected with a bottom wheel set guide plate installation screw hole 1-2, the outer scissor arm rolling wheel set 21 is positioned between the bottom wheel set guide plate 15 and the bottom installation frame 1, and the outer scissor arm rolling wheel set can only roll back and forth in the transverse range between the bottom wheel set guide plate installation screw holes 1-2 due to the limit of the bolt. And a wear-resistant guide block 16 is also arranged between the outer shear arm rolling wheel set 21 and the bottom mounting frame 1, and the wear-resistant guide block 16 is fixedly arranged on the bottom mounting frame 1 through a bolt connected with the bottom wear-resistant guide block mounting screw hole 1-3, so that the effect of reducing the wear of the upper mounting frame 2 is achieved.
The middle of the inner shearing arm 8 and the outer shearing arm 9 are connected through the middle connecting shaft 5. The rail lifting wheel set 7 is respectively arranged at the rail lifting wheel set installation positions 8-2 on the 2 sets of inner shearing arms 8.
As shown in fig. 13, the lifting link 10 includes an inner scissor arm connecting shaft 10-1, a floor mounting plate 10-2, and the like. The inner scissor arm 8 is provided with an inner scissor arm connecting shaft 10-1 through a lifting connecting rod mounting hole 8-3. The lifting link 10 is fixed to the bottom mounting frame 1 by a floor mounting plate 10-2 and bolting lifting link mounting locations 1-4. The lifting pulley 10-3 is arranged at the side of the lifting connecting rod 10.
Two sets of fixing arms 11 are arranged in the middle of the outer shear arm connecting shaft 12. As shown in fig. 14, a fixing claw is disposed on the bottom surface of the other end of the fixing arm 11, and the fixing claw includes a primary lifting rail fixing claw 11-1 and a secondary lifting rail fixing claw 11-2, wherein the primary lifting rail fixing claw 11-1 is located at the left side of the secondary lifting rail fixing claw 11-2, and corresponds to a claw-type fixing pin 1-5 disposed on the bottom mounting frame 1, and when the fixing arm 11 can move leftwards against the claw-type fixing pin 1-5, but when the fixing claw is meshed with the claw-type fixing pin 1-5, the fixing arm 11 can only move leftwards continuously at this time and cannot move rightwards. The upper mounting frame 1 is also provided with a limiting block 17, so that the upper and lower mounting frames can be kept at a certain distance. When the mechanism needs to be maintained, the maintenance rod 22 is placed at the corresponding hole sites on the bottom installation frame 1 and the upper installation frame 2, and the mechanism is unfolded, so that the maintenance personnel can conveniently construct the mechanism.
The secondary lifting mechanism of the entire assembly trolley is mounted on the traveling trolley 20 and moves forward with the trolley.
The specific installation application conditions of the invention are as follows: as shown in fig. 1, the secondary lifting mechanism of the assembly trolley is in a closed state in the initial state, and the upper mounting frame 1 is limited down by the limiting block 17. The lifting platform is at the lowest position, at this time, the inner scissor arm connecting shaft 13 is at the position of the upper wheel group guide plate mounting screw hole 2-2 at the right end, the outer scissor arm connecting shaft 12 is at the position of the bottom wheel group guide plate mounting screw hole 1-2 at the right end, the fixed arm 11 arranged in the middle of the outer scissor arm connecting shaft 12 is also at the rightmost end of the travel range, and the distance from the claw type fixed pin 1-5 is farthest.
As shown in fig. 2, when the lifting rail wheel set 7 on the inner scissor arm 8 moves to the position of the primary lifting rail 18 in the forward moving process of the travelling trolley 20, the front inner scissor arm 8 is lifted upwards by the gradient of the primary lifting rail 18, the inner scissor arm 8 drives the outer scissor arm 9 to lift upwards by the middle connecting shaft 5 in the lifting process, the upper mounting frame 2 lifts under the combined action of the inner and outer scissor arms, at this time, the inner scissor arm connecting shaft 13 is positioned in the middle of the upper wheel set guide plate mounting screw hole 2-2, the outer scissor arm connecting shaft 12 is positioned in the middle of the lower wheel set guide plate mounting screw hole 1-2, the fixed arm 11 mounted in the middle of the outer scissor arm connecting shaft 12 is also positioned at the middle end of the travel range, and the primary lifting rail fixed claw 11-1 is meshed with the claw type fixed pin 1-5. At this time, the upper mounting frame cannot descend but can only ascend.
When the rail lifting wheel set 7 is lifted to a certain position, the gradient of the primary lifting rail 18 cannot be lifted, as shown in fig. 3, the lifting pulley 10-3 on the lifting connecting rod assembly 10 is lifted by the secondary lifting rail 19 to perform secondary lifting, when the secondary lifting is up to the highest position, the inner shearing arm connecting shaft 13 is positioned at the left side of the upper wheel set guide plate mounting screw hole 2-2, the outer shearing arm connecting shaft 12 is positioned at the left side of the bottom wheel set guide plate mounting screw hole 1-2, the fixed arm 11 arranged in the middle of the outer shearing arm connecting shaft 12 is also positioned at the left end of the stroke range, and the secondary lifting rail fixed claw 11-2 is meshed with the claw type fixed pin 1-5. The upper mounting frame cannot be lowered at this time.
After the operation of the assembly trolley is finished, the fixed arm 11 is lifted up through angle steel rail lifting, the secondary rail lifting fixed claw 11-2 on the fixed arm 11 is separated from the claw type fixed pin 1-5, and then the lifting mechanism is lowered in the reverse order, so that the primary lifting process is finished.
Claims (5)
1. The utility model provides a secondary elevating system of assembly trolley which characterized in that: the mechanism comprises a bottom mounting frame (1), one end of an inner scissor arm (8) is connected with the bottom mounting frame (1), an inner scissor arm connecting shaft (13) is connected with the other end of the inner scissor arm (8), an inner scissor arm rolling wheel set (6) is connected with the two ends of the inner scissor arm connecting shaft (13), the inner scissor arm rolling wheel set (6) is positioned between an upper wheel set guide plate (14) and an upper mounting frame (2), one end of an outer scissor arm (9) is connected with the upper mounting frame (2), the other end of the outer scissor arm (9) is connected with an outer scissor arm connecting shaft (12), two ends of the outer scissor arm connecting shaft (12) are connected with an outer scissor arm rolling wheel set (21), the outer scissor arm rolling wheel set (21) is positioned between the bottom wheel set guide plate (15) and the bottom mounting frame (1), the middle of the inner scissor arm (8) is connected with the outer scissor arm (9) through an intermediate connecting shaft (5), a rail lifting wheel set (7) is mounted on the inner scissor arm (8), a connecting rod (10) is fixedly connected with one end of the lifting arm (10) on the lifting shaft (10), one end of the lifting shaft (10) is fixedly connected with the lifting arm (10), the bottom surface of the other end of the fixed arm (11) is provided with a fixed claw which is matched with a claw type fixed pin (1-5) arranged on the bottom mounting frame (1); the bottom mounting frame (1) is connected with one end of the inner shear arm (8) through a bottom fulcrum assembly (4), and the bottom fulcrum assembly (4) comprises a bottom fixing block (4-1) and a bottom mounting pin (4-2); the upper mounting frame (2) is connected with one end of the outer shear arm (9) through an upper fulcrum assembly (3), and the upper fulcrum assembly (3) comprises an upper fixing block (3-1) and an upper mounting pin (3-2); the fixing claws comprise primary rail lifting fixing claws (11-1) and secondary rail lifting fixing claws (11-2), and the primary rail lifting fixing claws (11-1) are positioned on the left side of the secondary rail lifting fixing claws (11-2).
2. The secondary lifting mechanism of the assembly trolley according to claim 1, wherein: and a wear-resistant guide block (16) is arranged between the inner shear arm rolling wheel set (6) and the upper mounting frame (2).
3. The secondary lifting mechanism of the assembly trolley according to claim 1, wherein: and a wear-resistant guide block (16) is arranged between the outer shear arm rolling wheel set (21) and the bottom mounting frame (1).
4. The secondary lifting mechanism of the assembly trolley according to claim 1, wherein: and a limiting block (17) is arranged on the upper mounting frame (2).
5. The secondary lifting mechanism of the assembly trolley according to claim 1, wherein: a maintenance rod (22) is arranged between the bottom mounting frame (1) and the upper mounting frame (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811539815.1A CN109607412B (en) | 2018-12-17 | 2018-12-17 | Secondary lifting mechanism of assembly trolley |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811539815.1A CN109607412B (en) | 2018-12-17 | 2018-12-17 | Secondary lifting mechanism of assembly trolley |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109607412A CN109607412A (en) | 2019-04-12 |
| CN109607412B true CN109607412B (en) | 2024-04-02 |
Family
ID=66009372
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811539815.1A Active CN109607412B (en) | 2018-12-17 | 2018-12-17 | Secondary lifting mechanism of assembly trolley |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109607412B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3558103A (en) * | 1966-09-26 | 1971-01-26 | Alois Lodige | Scissor action hoist with components shaped so as to nest within one another |
| CN101700863A (en) * | 2009-02-05 | 2010-05-05 | 崔侃 | Shear v shape aloft work hoist vehicle with compact structure |
| CN201458652U (en) * | 2009-07-31 | 2010-05-12 | 上海一成汽车检测设备科技有限公司 | Secondary approach device of scissor lift |
| CN202864823U (en) * | 2012-11-10 | 2013-04-10 | 烟台开发区海德科技有限公司 | Shearing type lifting machine |
| CN203346007U (en) * | 2013-06-08 | 2013-12-18 | 上海萨逸检测设备制造有限公司 | Large scissor lift provided with approach bridge |
| CN104709845A (en) * | 2015-03-17 | 2015-06-17 | 江苏中一汽车机械设备制造有限公司 | Large shear type secondary hydraulic lifter |
| CN209922790U (en) * | 2018-12-17 | 2020-01-10 | 天奇自动化工程股份有限公司 | Secondary lifting mechanism of assembly trolley |
-
2018
- 2018-12-17 CN CN201811539815.1A patent/CN109607412B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3558103A (en) * | 1966-09-26 | 1971-01-26 | Alois Lodige | Scissor action hoist with components shaped so as to nest within one another |
| CN101700863A (en) * | 2009-02-05 | 2010-05-05 | 崔侃 | Shear v shape aloft work hoist vehicle with compact structure |
| CN201458652U (en) * | 2009-07-31 | 2010-05-12 | 上海一成汽车检测设备科技有限公司 | Secondary approach device of scissor lift |
| CN202864823U (en) * | 2012-11-10 | 2013-04-10 | 烟台开发区海德科技有限公司 | Shearing type lifting machine |
| CN203346007U (en) * | 2013-06-08 | 2013-12-18 | 上海萨逸检测设备制造有限公司 | Large scissor lift provided with approach bridge |
| CN104709845A (en) * | 2015-03-17 | 2015-06-17 | 江苏中一汽车机械设备制造有限公司 | Large shear type secondary hydraulic lifter |
| CN209922790U (en) * | 2018-12-17 | 2020-01-10 | 天奇自动化工程股份有限公司 | Secondary lifting mechanism of assembly trolley |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109607412A (en) | 2019-04-12 |
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