CN218616630U - Synchronizing mechanism of large and small wheel rail car - Google Patents
Synchronizing mechanism of large and small wheel rail car Download PDFInfo
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- CN218616630U CN218616630U CN202222899055.3U CN202222899055U CN218616630U CN 218616630 U CN218616630 U CN 218616630U CN 202222899055 U CN202222899055 U CN 202222899055U CN 218616630 U CN218616630 U CN 218616630U
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Abstract
The utility model relates to a railcar technical field specifically is lazytongs of big or small round of railcar, the downside one end of whole skeleton is provided with the bull wheel rear axle, first synchronous belt is installed in the outside of bull wheel rear axle, the outside one end of bull wheel rear axle is located the downside position department of whole skeleton and installs the tensioning regulating plate, the downside position department that the downside of whole skeleton is located the right angle speed reducer is provided with T type wheel rear axle, the upside other end position department of whole skeleton is provided with first speed reduction shaft, the upside of whole skeleton closes on the position department of first speed reduction shaft and is provided with second speed reduction shaft. The utility model discloses a mounting means of two kinds of different wheel footpath big or small wheels realizes two kinds of combinations of difference in height and crosses bank problem, and reduction gearing is not limited to be the two-stage speed reduction, also can be single-stage speed reduction or multistage speed reduction, solves the technical problem that there is synchronism, energy saving, the multiple track adaptation of difference in height walking machinery in track and ground.
Description
Technical Field
The utility model relates to a railcar technical field specifically is big small wheel railcar's lazytongs.
Background
The wheel rail car is a main transport tool for executing tasks by construction departments such as railway equipment maintenance, overhaul, capital construction and the like, and common rail robots and rail cars in a vehicle and rail mechanism directly drive to run on a rail through a running wheel frame and realize running through a driving shaft.
The Chinese patent discloses a railcar for an I-shaped track, (an authorized publication number CN 203739893U), the railcar is automatically operated, the structure is simple and compact, the railcar can run in two directions, a walking mechanism adopts symmetrical gear sets, a detection mechanism is arranged to ensure that all micro wheels run synchronously, and the balance and the accuracy of the railcar are kept. Accordingly, those skilled in the art have provided a synchronizing mechanism for a large and small wheel rail car to solve the problems set forth in the background art described above.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a lazytongs of big small wheel railcar to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme:
the lazytongs of bull wheel railcar, including whole skeleton, right angle speed reducer, driving motor, first motor mounting panel and second motor mounting panel, the right angle speed reducer is located the downside position department of whole skeleton, driving motor is located one side position department of right angle speed reducer, first motor mounting panel is located the front side position department of right angle speed reducer, second motor mounting panel is located the rear end position department of first motor mounting panel, the downside one end of whole skeleton is provided with the bull wheel rear axle, first synchronous belt is installed in the outside of bull wheel rear axle, the downside position department that the outside one end of bull wheel rear axle is located whole skeleton installs the tensioning regulating plate, the downside position department that the downside of whole skeleton is located the right angle speed reducer is provided with T type wheel rear axle, the upside other end position department of whole skeleton is provided with first speed reduction shaft, the upside of whole skeleton closes on the position department of first speed reduction shaft and is provided with the second speed reduction shaft, the other end downside position department of whole skeleton installs the bull wheel front axle, the bull wheel rear axle all installs the big walking wheel with the position department of bull wheel outer end of the outer end of bull wheel front axle, the downside of whole skeleton installs T type wheel rear axle and the outside of second speed reduction shaft the second synchronous belt, the T type wheel rear axle installs the outside of second synchronous belt.
As a further aspect of the present invention: the outer end position department of bull wheel rear axle and bull wheel front axle all is provided with bull wheel mounting flange, first little synchronizing wheel is all installed in the outside of bull wheel rear axle, bull wheel front axle, T type wheel rear axle and T type wheel front axle, big synchronizing wheel is all installed in the outside position department of first speed reduction axle, second speed reduction axle and bull wheel front axle, the little synchronizing wheel of second is all installed in the outside position department of T type wheel front axle, second speed reduction axle and first speed reduction axle, the bearing frame is all installed in the outer end position department of first speed reduction axle and second speed reduction axle.
As a further aspect of the present invention: the bull wheel rear axle passes through the tensioning regulating plate to be installed in the downside position department of whole skeleton, whole skeleton is fixed in the upside position department of whole skeleton through first motor mounting panel and second motor mounting panel, driving motor passes through right angle speed reducer and T type wheel rear axle transmission.
As a further aspect of the present invention: the other end of the first synchronous belt is located at the outer side position of the front big wheel shaft, the rear big wheel shaft and the front big wheel shaft are in transmission through the first synchronous belt, the other end of the second synchronous belt is located at the outer side position of the front T-shaped wheel shaft, and the rear T-shaped wheel shaft and the front T-shaped wheel shaft are in transmission through the second synchronous belt.
As the utility model discloses further scheme again: the other end of the first transmission belt is located at the outer side position of the second speed reducing shaft, the T-shaped wheel front shaft and the second speed reducing shaft are in transmission through the first transmission belt, the other end of the second transmission belt is located at the outer side position of the first speed reducing shaft, the first speed reducing shaft and the second speed reducing shaft are in transmission through the second transmission belt, the other end of the third transmission belt is located at the outer side position of the big wheel front shaft, and the big wheel front shaft and the first speed reducing shaft are in transmission through the third transmission belt.
As the utility model discloses further scheme again: the big walking wheel is fixed at the outer end position of a big wheel rear shaft or a big wheel front shaft through a big wheel mounting flange, and the first speed reduction shaft or the second speed reduction shaft rotates at the upper side position of the whole framework through a bearing seat.
As a further aspect of the present invention: the first synchronous belt is installed at the outer side positions of the large wheel rear shaft and the large wheel front shaft through the first small synchronous wheel, the second synchronous belt is installed at the outer side positions of the T-shaped wheel rear shaft and the T-shaped wheel front shaft through the first small synchronous wheel, the first transmission belt is installed at the outer side positions of the second speed reducing shaft and the T-shaped wheel front shaft through the large synchronous wheel and the second small synchronous wheel, the second transmission belt is installed at the outer side positions of the second speed reducing shaft and the first speed reducing shaft through the large synchronous wheel and the second small synchronous wheel, and the third transmission belt is installed at the outer side positions of the first speed reducing shaft and the large wheel front shaft through the large synchronous wheel and the second small synchronous wheel.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the utility model discloses a walking of synchronizing wheel and first synchronous belt drive front and back wheel makes its synchronization, realize two kinds of combinations of difference in height and cross the bank problem through the mounting means of two kinds of different wheel footpath big and small wheels, the middle big and small synchronizing wheel speed reduction transmission that adopts makes its big wheel when walking on the ground and the linear velocity of steamboat when the track walking reaches the same synchronous advancing retreat, make big wheel and steamboat realize the structure of synchronous motion on ground and track respectively through speed ratio conversion after, speed reduction transmission is not limited to two-stage speed reduction, also can be single-stage speed reduction or multistage speed reduction, just so can not have the phenomenon of pulling hard when the bank is crossed to upper and lower track, thereby realize track and ground and realize synchronous walking, the synchronism of solving track and ground and having the synchronism of difference in height walking machinery, energy consumption, the technical problem of multiple track adaptation, the transmission mode is not limited to first synchronizing belt and synchronizing wheel transmission mode, the arrangement of big and small wheel is not limited to big wheel or back, the appearance of big and small wheel, not limited to T type wheel and round platform wheel also can be the circular wheel of other shapes and sizes;
2. the rail can be automatically fed and discharged from top to bottom without external assistance, the phenomenon that the pit cannot be crossed by a ridge and the like due to side turning can be avoided, mechanical safety accidents can not happen without manual assistance, the improvement of the walking structure when the height difference exists between the rail and the ground is realized, the automation is realized without manual assistance when the rail automatically goes up and down, the labor cost is reduced, the working efficiency is improved, and the mechanical injury is avoided.
Drawings
FIG. 1 is a schematic structural diagram of a synchronizing mechanism of a large and small wheel railcar;
FIG. 2 is a top view of a synchronizing mechanism for a large and small wheel railcar;
FIG. 3 is a side view of the synchronizing mechanism of the large and small wheel railcars;
FIG. 4 is a rear view of the synchronizing mechanism of the large and small wheel railcar;
fig. 5 is a schematic structural diagram of a part a in fig. 1 of a synchronous mechanism of a large and small wheel rail car.
In the figure: 1. an integral framework; 2. a right-angle reducer; 3. a drive motor; 4. a rear large wheel axle; 5. a first synchronization belt; 6. a first small synchronizing wheel; 7. tensioning the adjusting plate; 8. a T-shaped wheel rear axle; 9. a first motor mounting plate; 10. a second motor mounting plate; 11. a large road wheel; 12. a bearing seat; 13. a first reduction shaft; 14. a second reduction shaft; 15. a large synchronizing wheel; 16. a T-shaped wheel; 17. a large wheel mounting flange; 18. a large wheel front axle; 19. a T-shaped wheel front shaft; 20. a second small synchronizing wheel; 21. a first drive belt; 22. a second belt; 23. a third belt; 33. a second timing belt.
Detailed Description
Referring to fig. 1 to 5, in the embodiment of the present invention, the synchronizing mechanism of a large and small wheel rail car includes an integral frame 1, a right angle reducer 2, a driving motor 3, a first motor mounting plate 9 and a second motor mounting plate 10, the right angle reducer 2 is located at a lower side position of the integral frame 1, the driving motor 3 is located at a side position of the right angle reducer 2, the first motor mounting plate 9 is located at a front side position of the right angle reducer 2, the second motor mounting plate 10 is located at a rear side position of the first motor mounting plate 9, a large wheel rear shaft 4 is arranged at a lower side end of the integral frame 1, a first synchronizing belt 5 is arranged at an outer side of the large wheel rear shaft 4, a tensioning adjusting plate 7 is arranged at a lower side position of the integral frame 1, a T-shaped wheel rear shaft 8 is arranged at a lower side position of the right angle reducer 2 at a lower side of the integral frame 1, a first speed reducing shaft 13 is arranged at the other end position of the upper side of the integral framework 1, a second speed reducing shaft 14 is arranged at the position, close to the first speed reducing shaft 13, of the upper side of the integral framework 1, a big wheel front shaft 18 is arranged at the lower side position of the other end of the integral framework 1, big traveling wheels 11 are arranged at the outer end positions of the big wheel rear shaft 4 and the big wheel front shaft 18, a T-shaped wheel front shaft 19 is arranged at the other end of the lower side of the integral framework 1, T-shaped wheels 16 are arranged at the outer end positions of the T-shaped wheel rear shaft 8 and the T-shaped wheel front shaft 19, a first transmission belt 21 is arranged at the outer side of the T-shaped wheel front shaft 19, a second transmission belt 22 is arranged at the outer side of the second speed reducing shaft 14, a third transmission belt 23 is arranged at the outer side of the first speed reducing shaft 13, a second synchronous belt 33 is arranged at the outer side of the T-shaped wheel rear shaft 8, the big wheel rear shaft 4 is arranged at the lower side position of the integral framework 1 through a tensioning adjusting plate 7, the integral framework 1 is fixed at the upper side position of the integral framework 1 through a first motor mounting plate 9 and a second motor mounting plate 10, a driving motor 3 is in transmission with a T-shaped wheel rear shaft 8 through a right-angle speed reducer 2, the other end of a first synchronous belt 5 is positioned at the outer side position of a large wheel front shaft 18, the large wheel rear shaft 4 is in transmission with the large wheel front shaft 18 through the first synchronous belt 5, the other end of a second synchronous belt 33 is positioned at the outer side position of a T-shaped wheel front shaft 19, the T-shaped wheel rear shaft 8 is in transmission with the T-shaped wheel front shaft 19 through the second synchronous belt 33, the other end of a first transmission belt 21 is positioned at the outer side position of a second speed reducing shaft 14, the T-shaped wheel front shaft 19 is in transmission with the second speed reducing shaft 14 through the first transmission belt 21, the other end of the second transmission belt 22 is positioned at the outer side position of the first speed reducing shaft 13, the first speed reducing shaft 13 is in transmission with the second speed reducing shaft 14 through the second transmission belt 22, the other end of the third transmission belt 23 is located at the outer side position of the big wheel front shaft 18, the big wheel front shaft 18 and the first speed reducing shaft 13 are transmitted through the third transmission belt 23, firstly, the device is carried to the using position, when the device is used on a track, the T-shaped wheel front shaft 19 and the T-shaped wheel 16 on the T-shaped wheel rear shaft 8 are clamped on the track, the big walking wheel 11 is supported to the ground to complete installation, then, the driving motor 3 operates to drive the T-shaped wheel rear shaft 8 to rotate through the right-angle speed reducer 2, the T-shaped wheel rear shaft 8 drives the T-shaped wheel front shaft 19 to rotate through the second synchronous belt 33, the T-shaped wheel front shaft 19 drives the second speed reducing shaft 14 to rotate through the first transmission belt 22, the first speed reducing shaft 13 drives the big wheel front shaft 18 to rotate through the third transmission belt 23, the big wheel front shaft 18 drives the first small synchronous wheel 6 outside the big wheel rear shaft 4 to rotate through the first synchronous belt 5, the large wheel rear shaft 4 rotates, and the device is driven to move by the T-shaped wheel rear shaft 8 and the T-shaped wheel 16 outside the T-shaped wheel front shaft 19 rotating on the track, or the large wheel rear shaft 4 and the large road wheel 11 outside the large wheel front shaft 18 move on the ground.
In fig. 2, 5: the outer end positions of the big wheel rear shaft 4 and the big wheel front shaft 18 are respectively provided with a big wheel mounting flange 17, the outer sides of the big wheel rear shaft 4, the big wheel front shaft 18, the T-shaped wheel rear shaft 8 and the T-shaped wheel front shaft 19 are respectively provided with a first small synchronizing wheel 6, the outer side positions of the first speed reducing shaft 13, the second speed reducing shaft 14 and the big wheel front shaft 18 are respectively provided with a big synchronizing wheel 15, the outer side positions of the T-shaped wheel front shaft 19, the second speed reducing shaft 14 and the first speed reducing shaft 13 are respectively provided with a second small synchronizing wheel 20, the outer end positions of the first speed reducing shaft 13 and the second speed reducing shaft 14 are respectively provided with a bearing seat 12, the big traveling wheel 11 is fixed at the outer end position of the big wheel rear shaft 4 or the big wheel front shaft 18 through a big wheel driving belt mounting flange 17, the first speed reducing shaft 13 or the second speed reducing shaft 14 rotates at the upper side position of the whole framework 1 through the bearing seat 12, the first small synchronizing wheel 6 is mounted at the outer side position of the big wheel rear shaft 4 and the big wheel front shaft 18 through a big wheel driving belt mounting flange 17, the T-shaped wheel rear shaft 13 and the second speed reducing shaft 14 are mounted at the outer side position of the big wheel front shaft 15, the T-shaped wheel front shaft 19, the big wheel rear shaft 13 and the second synchronizing wheel front shaft 14 are mounted at the right-angle synchronous wheel rear shaft 15, the big wheel rear shaft 15, the second synchronizing wheel 23, the big wheel rear shaft 15, the big wheel rear shaft 21, the T-shaped wheel front shaft 19 rotates, the second small synchronizing wheel 20 on the outer side of the T-shaped wheel front shaft 19 drives the large synchronizing wheel 15 on the outer side of the second speed reducing shaft 14 to rotate through the first transmission belt 21, the second speed reducing shaft 14 rotates on the upper side of the whole framework 1 through the bearing seat 12, the second small synchronizing wheel 20 on the outer side of the second speed reducing shaft 14 drives the large synchronizing wheel 15 on the outer side of the first speed reducing shaft 13 to rotate through the second transmission belt 22, the first speed reducing shaft 13 rotates on the upper side of the whole framework 1 through the bearing seat 12, the second small synchronizing wheel 20 on the outer side of the first speed reducing shaft 13 drives the large synchronizing wheel 15 on the outer side of the large wheel front shaft 18 to rotate through the third transmission belt 23, the large wheel front shaft 18 rotates, the first small synchronizing wheel 6 on the outer side of the large wheel front shaft 18 drives the first small synchronizing wheel 6 on the outer side of the large wheel rear shaft 4 to rotate through the first synchronizing belt 5, and the large wheel rear shaft 4 rotates.
The utility model discloses a theory of operation is: firstly, when the device is carried to a use position, when the device is used on a track, a T-shaped wheel front shaft 19 and a T-shaped wheel 16 on a T-shaped wheel rear shaft 8 are clamped on the track, a large travelling wheel 11 is supported on the ground to finish installation, then, the device is used, a driving motor 3 runs to drive the T-shaped wheel rear shaft 8 to rotate through a right-angle speed reducer 2, a first small synchronous wheel 6 on the outer side of the T-shaped wheel rear shaft 8 drives a first small synchronous wheel 6 on the outer side of the T-shaped wheel front shaft 19 to rotate through a second synchronous belt 33, the T-shaped wheel front shaft 19 rotates, a second small synchronous wheel 20 on the outer side of the T-shaped wheel front shaft 19 drives a large synchronous wheel 15 on the outer side of a second speed reducing shaft 14 to rotate through a first driving belt 21, the second speed reducing shaft 14 rotates on the upper side of a whole framework 1 through a bearing seat 12, the second small synchronizing wheel 20 outside the second speed reducing shaft 14 drives the large synchronizing wheel 15 outside the first speed reducing shaft 13 to rotate through the second transmission belt 22, the first speed reducing shaft 13 rotates on the upper side of the whole framework 1 through the bearing seat 12, the second small synchronizing wheel 20 outside the first speed reducing shaft 13 drives the large synchronizing wheel 15 outside the large wheel front shaft 18 to rotate through the third transmission belt 23, the large wheel front shaft 18 rotates, the first small synchronizing wheel 6 outside the large wheel front shaft 18 drives the first small synchronizing wheel 6 outside the large wheel rear shaft 4 to rotate through the first synchronous belt 5, the large wheel rear shaft 4 rotates, the T-shaped wheel rear shaft 8 and the T-shaped wheel 16 outside the T-shaped wheel front shaft 19 rotate on the rail, the driving device moves, or the large traveling wheel 11 outside the large wheel rear shaft 4 and the large wheel front shaft 18 moves on the ground.
The above-mentioned, only be the embodiment of the preferred of the present invention, nevertheless the utility model discloses a protection scope is not limited to this, and any technical personnel familiar with this technical field is in the technical scope of the utility model discloses an according to the utility model discloses a technical scheme and utility model design in addition the replacement of equality or change, all should be covered within the protection scope of the utility model.
Claims (7)
1. The synchronizing mechanism of the large-wheel and small-wheel rail car comprises a whole framework (1), a right-angle speed reducer (2), a driving motor (3), a first motor mounting plate (9) and a second motor mounting plate (10), wherein the right-angle speed reducer (2) is positioned at the lower side position of the whole framework (1), the driving motor (3) is positioned at one side position of the right-angle speed reducer (2), the first motor mounting plate (9) is positioned at the front side position of the right-angle speed reducer (2), the second motor mounting plate (10) is positioned at the rear end position of the first motor mounting plate (9), the synchronizing mechanism is characterized in that, a large-wheel rear shaft (4) is arranged at one side end of the whole framework (1), a first synchronizing belt (5) is arranged at the outer side of the large-wheel rear shaft (4), a tensioning adjusting plate (7) is arranged at the lower side position of the whole framework (1), a T-type wheel rear shaft (8) is arranged at the lower side position of the whole framework (2), a first decelerating shaft (13) is arranged at the upper side position of the whole framework (1), and a second decelerating shaft (13) is arranged at the lower side position of the whole framework (13), big wheel rear axle (4) all install big walking wheel (11) with the outer end position department of big wheel front axle (18), T type wheel front axle (19) are installed to the downside other end of whole skeleton (1), T type wheel rear axle (8) all install T type wheel (16) with the outer end position department of T type wheel front axle (19), first drive belt (21) are installed in the outside of T type wheel front axle (19), second drive belt (22) are installed in the outside of second speed reduction axle (14), third drive belt (23) are installed in the outside of first speed reduction axle (13), second hold-in range (33) are installed in the outside of T type wheel rear axle (8).
2. The synchronizing mechanism of the large and small wheel rail cars according to claim 1, characterized in that large wheel mounting flanges (17) are arranged at the outer end positions of the large wheel rear shaft (4) and the large wheel front shaft (18), first small synchronizing wheels (6) are arranged at the outer sides of the large wheel rear shaft (4), the large wheel front shaft (18), the T-shaped wheel rear shaft (8) and the T-shaped wheel front shaft (19), large synchronizing wheels (15) are arranged at the outer side positions of the first decelerating shaft (13), the second decelerating shaft (14) and the large wheel front shaft (18), second small synchronizing wheels (20) are arranged at the outer side positions of the T-shaped wheel front shaft (19), the second decelerating shaft (14) and the first decelerating shaft (13), and bearing seats (12) are arranged at the outer end positions of the first decelerating shaft (13) and the second decelerating shaft (14).
3. The synchronizing mechanism of the large and small wheel rail cars according to claim 1, characterized in that the large wheel rear axle (4) is installed at the lower side position of the integral framework (1) through a tensioning adjusting plate (7), the integral framework (1) is fixed at the upper side position of the integral framework (1) through a first motor mounting plate (9) and a second motor mounting plate (10), and the driving motor (3) is in transmission with the T-shaped wheel rear axle (8) through a right-angle speed reducer (2).
4. The synchronizing mechanism of a large and small wheel rail car according to claim 1, wherein the other end of the first synchronizing belt (5) is located at an outer side position of the large wheel front axle (18), the large wheel rear axle (4) and the large wheel front axle (18) are driven by the first synchronizing belt (5), the other end of the second synchronizing belt (33) is located at an outer side position of the T-shaped wheel front axle (19), and the T-shaped wheel rear axle (8) and the T-shaped wheel front axle (19) are driven by the second synchronizing belt (33).
5. The synchronizing mechanism for large and small wheel railcars according to claim 1, characterized in that the other end of the first transmission belt (21) is located at the outer side position of the second deceleration shaft (14), the T-shaped wheel front shaft (19) and the second deceleration shaft (14) are transmitted through the first transmission belt (21), the other end of the second transmission belt (22) is located at the outer side position of the first deceleration shaft (13), the first deceleration shaft (13) and the second deceleration shaft (14) are transmitted through the second transmission belt (22), the other end of the third transmission belt (23) is located at the outer side position of the large wheel front shaft (18), and the large wheel front shaft (18) and the first deceleration shaft (13) are transmitted through the third transmission belt (23).
6. The synchronizing mechanism of the large and small wheel rail cars according to claim 2, characterized in that the large road wheel (11) is fixed at the outer end position of the large wheel rear axle (4) or the large wheel front axle (18) through a large wheel mounting flange (17), and the first speed reducing shaft (13) or the second speed reducing shaft (14) rotates at the upper side position of the whole frame (1) through a bearing seat (12).
7. The synchronizing mechanism of a large and small wheel rail vehicle according to claim 2, wherein the first synchronizing belt (5) is installed at an outer position of the large wheel rear axle (4) and the large wheel front axle (18) through a first small synchronizing wheel (6), the second synchronizing belt (33) is installed at an outer position of the T-wheel rear axle (8) and the T-wheel front axle (19) through a first small synchronizing wheel (6), the first driving belt (21) is installed at an outer position of the second decelerating axle (14) and the T-wheel front axle (19) through a large synchronizing wheel (15) and a second small synchronizing wheel (20), the second driving belt (22) is installed at an outer position of the second decelerating axle (14) and the first decelerating axle (13) through a large synchronizing wheel (15) and a second small synchronizing wheel (20), and the third driving belt (23) is installed at an outer position of the first decelerating axle (13) and the large decelerating axle (18) through a large synchronizing wheel (15) and a second small synchronizing wheel (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222899055.3U CN218616630U (en) | 2022-11-01 | 2022-11-01 | Synchronizing mechanism of large and small wheel rail car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222899055.3U CN218616630U (en) | 2022-11-01 | 2022-11-01 | Synchronizing mechanism of large and small wheel rail car |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218616630U true CN218616630U (en) | 2023-03-14 |
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ID=85475434
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222899055.3U Active CN218616630U (en) | 2022-11-01 | 2022-11-01 | Synchronizing mechanism of large and small wheel rail car |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218616630U (en) |
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2022
- 2022-11-01 CN CN202222899055.3U patent/CN218616630U/en active Active
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