CN215854880U - Power unit transfer trolley and power unit maintenance system - Google Patents
Power unit transfer trolley and power unit maintenance system Download PDFInfo
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- CN215854880U CN215854880U CN202122005196.1U CN202122005196U CN215854880U CN 215854880 U CN215854880 U CN 215854880U CN 202122005196 U CN202122005196 U CN 202122005196U CN 215854880 U CN215854880 U CN 215854880U
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Abstract
The utility model discloses a power unit transfer trolley and a power unit maintenance system. The power unit transfer trolley comprises a rack; a scissor lift mechanism; the locking hand lever can do reciprocating linear movement along the axis of the locking hand lever and can rotate around the axis of the locking hand lever, and the locking hand lever is provided with a limiting bulge and a limiting recess; the locking pull rod can perform reciprocating linear movement along the height direction of the rack, and is provided with an unlocking hole and a limiting groove which are sequentially and communicated along the height direction of the rack; the tray is arranged at the top of the shear type lifting mechanism, and the outer side wall of the tray is provided with a collision block; and the elastic element is arranged at the bottom of the locking pull rod. The power unit transfer trolley can realize the locking function after being connected with the cabinet into a whole, reduces the rollover phenomenon of the power unit transfer trolley, protects equipment, ensures the physical health of operators and improves the safety factor of the power unit disassembly and transfer.
Description
Technical Field
The utility model relates to the technical field of power unit transfer, in particular to a power unit transfer trolley and a power unit maintenance system.
Background
The core component of the high-voltage frequency converter is a power unit, and the power unit needs to be frequently replaced and maintained due to high failure rate of the power unit.
At present, because the volume and the weight of the power unit are large and exceed the bearing range of manual operation, the power unit is often transferred through a forklift when being disassembled and assembled. Because the power unit is higher in the mounted position on the high-voltage inverter, the phenomenon of turning on one's side often takes place when fork truck receives and transports the power unit, not only damages equipment, endangers operating personnel's healthy moreover, has reduced the factor of safety that the power unit dismantles and transports.
Therefore, how to increase the safety factor of the power unit disassembly and transportation is a technical problem that needs to be solved by those skilled in the art at present.
SUMMERY OF THE UTILITY MODEL
In view of the above, the present invention is directed to a power unit transfer cart to increase the safety factor of the power unit detachment and transportation.
In order to achieve the purpose, the utility model provides the following technical scheme:
a power unit transfer car comprising:
a movable frame;
the scissor type lifting mechanism is arranged on the rack;
the locking handle rod is arranged on the rack, can perform reciprocating linear movement along the axis of the locking handle rod and can rotate around the axis of the locking handle rod, a limiting protrusion is arranged on one side, close to the cabinet, of the locking handle rod, a gourd hole capable of being matched with the locking handle rod and the limiting protrusion is formed in the cabinet, and two mutually parallel concave parts are cut in the outer side wall of the locking handle rod;
the locking pull rod can perform reciprocating linear movement along the height direction of the rack, an unlocking hole capable of being matched with the locking hand rod and a limiting groove capable of being matched with the recessed part are formed in the locking pull rod, the unlocking hole and the limiting groove are sequentially and communicated along the height direction of the rack, the locking hand rod penetrates through the hoist hole and rotates for a preset angle along a first direction, the locking hand rod can be limited to perform reciprocating movement along the axis of the locking hand rod through the matching of the hoist hole and the limiting protrusion, and meanwhile, the planes of two side walls of the limiting groove are respectively parallel to the planes of the two recessed parts;
the tray is arranged at the top of the scissor type lifting mechanism, the tray can receive and store the power unit, the outer side wall of the tray is provided with a collision block, and the collision block can push the locking pull rod to move downwards; and
and the elastic element is arranged at the bottom of the locking pull rod, and one side of the elastic element, which is far away from the locking pull rod, is contacted with the rack.
Preferably, in the above power unit transfer trolley, the preset angle is 90 °.
Preferably, in the power unit transfer trolley, the recessed portions are rectangular surface contact portions cut out of the locking handle bar, the two recessed portions are symmetrically arranged along the axis of the locking handle bar, and the limiting groove is a rectangular groove capable of being matched with the two recessed portions.
Preferably, in the power unit transfer trolley, the scissor lift mechanism comprises a handle, a screw nut assembly connected with the handle, and a scissor arm connected with a nut of the screw nut assembly.
Preferably, in the power unit transfer trolley, the shear arm includes a first shear arm, a second shear arm, a third shear arm and a fourth shear arm, the first end of the first shear arm and the first end of the second shear arm are both rotatably connected to the frame, the first end of the third shear arm and the first end of the fourth shear arm are both rotatably connected to the tray, the screw-nut assembly includes a screw body connected to the handle, a first nut rotatably connected to the screw body, and a second nut rotatably connected to the screw body, the screw body is provided with a first thread engaged with the first nut and a second thread engaged with the second nut, the first thread and the second thread are opposite threads, and when the screw body rotates, the first nut and the second nut linearly move along the axis of the screw body, and the second end of the first shear arm and the second end of the third shear arm are rotatably connected with the first nut, and the second end of the second shear arm and the second end of the fourth shear arm are rotatably connected with the second nut.
Preferably, in the power unit transfer trolley, the trolley further comprises a traveling wheel arranged at the bottom of the frame.
Preferably, in the power unit transfer trolley, a guide structure for guiding the movement of the locking pull rod is arranged on the frame.
Preferably, in the power unit transfer trolley, the locking pull rod is provided with a descending driving structure which can be matched with the collision block.
Preferably, in the power unit transfer trolley, the elastic element is a spring.
A power unit maintenance system comprising a power unit transfer car as described in any of the above.
When the power unit transfer cart provided by the utility model is used, the tray is arranged at the top of the scissor type lifting mechanism, so that the tray can be driven to lift through the scissor type lifting mechanism, along with the descending of the tray, the collision block arranged on the outer side wall of the tray pushes the locking pull rod to move downwards until the unlocking hole on the locking pull rod is matched with the locking hand rod, at the moment, the locking hand rod can do reciprocating linear movement along the axis of the locking hand rod and can rotate around the axis of the locking hand rod, namely, the locking hand rod is in an unlocking state, the locking pull rod moves downwards, and the elastic element at the bottom of the locking pull rod is in a compression state; because the rack can move, the power unit transfer trolley can be transferred to the vicinity of the cabinet through the movement of the rack, after the power unit transfer trolley is transferred to the vicinity of the cabinet, the locking hand lever is pushed, one end of the locking hand lever, which is provided with the limiting bulge, enters the gourd hole on the cabinet, and is rotated by a preset angle along the first direction, at the moment, the locking hand lever can be limited to reciprocate along the axis of the locking hand lever through the matching of the gourd hole and the limiting bulge, simultaneously, the plane where the two side walls of the limiting groove are positioned is parallel to the plane where the two sunken parts are positioned, the tray is lifted to a required position through the scissor type lifting mechanism, along with the lifting of the tray, the elastic element in a compressed state pushes the locking pull lever to move upwards until the limiting groove of the locking pull lever is matched with the sunken part of the locking hand lever, at the moment, the locking hand lever can not reciprocate along the axis of the locking hand lever under the matching of the gourd hole and the limiting bulge, the power unit transfer trolley can not rotate under the matching of the limiting groove and the concave part, namely the locking hand lever is in a locking state, and the power unit transfer trolley is reliably connected with the cabinet; after the power unit is pulled out from the cabinet to the tray, the scissor type lifting mechanism drives the tray to descend, so that the collision block on the tray pushes the locking pull rod to move downwards until the concave part on the locking hand lever is disengaged from the limiting groove on the locking pull rod, the locking hand lever enters the unlocking hole communicated with the limiting groove, then the locking handle rod is pulled to one side far away from the cabinet after the limiting bulge is aligned with the hoist hole by rotating a preset angle along the direction opposite to the first direction, so that the limiting bulge is separated from the gourd hole of the cabinet, at the moment, the locking hand lever can rotate around the axis of the locking hand lever and can move along the axis of the locking hand lever, the locking hand lever realizes unlocking, namely, the connection relation between the power unit transfer trolley and the cabinet is released, and finally the power unit transfer trolley is moved to a required position through the movement of the rack, so that the power unit disassembly work is completed. Therefore, the power unit transfer trolley provided by the utility model can be connected with the cabinet into a whole, and can realize a locking function after being connected with the cabinet into a whole, so that the side turning phenomenon of the power unit transfer trolley is reduced, the equipment is protected, the physical health of operators is guaranteed, and the safety coefficient of the power unit disassembly and transfer is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic perspective view of a power unit transfer vehicle according to an embodiment of the present invention;
FIG. 2 is a schematic side view of a power unit transfer vehicle according to an embodiment of the present invention;
fig. 3 is a partial structural schematic view of a locking lever in an unlocked state according to an embodiment of the present invention;
fig. 4 is a partial structural schematic view of a locking handle according to an embodiment of the present invention in a locked state.
The device comprises a frame 100, a scissor type lifting mechanism 200, a handle 201, a screw nut assembly 202, a shear arm 203, a first shear arm 2031, a second shear arm 2032, a third shear arm 2033, a fourth shear arm 2034, a locking hand lever 300, a limiting protrusion 301, a concave portion 302, a locking pull rod 400, an unlocking hole 401, a limiting groove 402, a tray 500, a collision block 501, an elastic element 600, a travelling wheel 700, a cabinet 800 and a gourd hole 801.
Detailed Description
In view of the above, the core of the present invention is to provide a power unit transfer vehicle to increase the safety factor of the power unit detachment and transfer.
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1 to 4, the embodiment of the utility model discloses a power unit transfer trolley, which comprises a frame 100, a scissor type lifting mechanism 200, a locking handle 300, a locking pull rod 400, a tray 500 and an elastic element 600.
Wherein the gantry 100 is movable; the scissor lift mechanism 200 is disposed on the frame 100; the locking hand lever 300 is arranged on the rack 100, the locking hand lever 300 can do reciprocating linear movement along the axis of the locking hand lever 300 and can rotate around the axis of the locking hand lever 300, a limiting protrusion 301 is arranged on one side, close to the cabinet 800, of the locking hand lever 300, a gourd hole 801 capable of being matched with the locking hand lever 300 and the limiting protrusion 301 is arranged on the cabinet 800, and two mutually parallel concave parts 302 are cut on the outer side wall of the locking hand lever 300; the locking pull rod 400 can make reciprocating linear movement along the height direction of the rack 100, an unlocking hole 401 capable of being matched with the locking hand rod 300 and a limiting groove 402 capable of being matched with the concave part 302 are arranged on the locking pull rod 400, the unlocking hole 401 and the limiting groove 402 are sequentially and communicated along the height direction of the rack 100, after the locking hand rod 300 passes through the gourd hole 801 and rotates for a preset angle along a first direction, the locking hand rod can be limited to make reciprocating movement along the axis of the locking hand rod through the matching of the gourd hole 801 and the limiting bulge 301, and meanwhile, the planes of two side walls of the limiting groove 402 are respectively parallel to the planes of the two concave parts 302; the tray 500 is arranged at the top of the scissor type lifting mechanism 200, the tray 500 can receive and store the power unit, the collision block 501 is arranged on the outer side wall of the tray 500, and the collision block 501 can push the locking pull rod 400 to move downwards; the elastic member 600 is disposed at the bottom of the locking lever 400, and a side of the elastic member 600 away from the locking lever 400 contacts the housing 100.
When the power unit transfer cart provided by the utility model is used, the tray 500 is arranged at the top of the scissor-type lifting mechanism 200, so that the scissor-type lifting mechanism 200 can drive the tray 500 to lift, and along with the descending of the tray 500, the collision block 501 arranged on the outer side wall of the tray 500 pushes the locking pull rod 400 to move downwards until the unlocking hole 401 on the locking pull rod 400 is matched with the locking hand lever 300, at the moment, the locking hand lever 300 can do reciprocating linear movement along the axis of the locking hand lever and can rotate around the axis of the locking hand lever 300, namely, the locking hand lever 300 is in an unlocking state, the locking pull rod 400 is locked to move downwards, and the elastic element 600 at the bottom of the locking pull rod 400 is in a compression state; because the rack 100 can move, the power unit transfer trolley can be transferred to the vicinity of the cabinet 800 by the movement of the rack 100, after the power unit transfer trolley is transferred to the vicinity of the cabinet 800, the locking hand lever 300 is pushed, one end of the locking hand lever 300 provided with the limiting protrusion 301 enters the gourd hole 801 on the cabinet 800, the locking hand lever 300 is rotated by a preset angle along the first direction, at this time, the locking hand lever 300 can be limited to move back and forth along the self axis by the matching of the gourd hole 801 and the limiting protrusion 301, simultaneously, the plane of the two side walls of the limiting groove 402 is parallel to the plane of the two concave parts 302, the tray 500 is lifted to a required position by the scissor type lifting mechanism 200, along with the lifting of the tray 500, the elastic element 600 in a compressed state pushes the locking pull rod 400 to move upwards until the limiting groove 402 of the locking pull rod 400 is matched with the concave part 302 of the locking hand lever 300, at this time, the locking hand lever 300 cannot make reciprocating movement along the axis of the locking hand lever under the matching of the gourd hole 801 and the limiting protrusion 301, and cannot rotate under the matching of the limiting groove 402 and the concave part 302, namely, the locking hand lever 300 is in a locking state, and the power unit transfer trolley and the cabinet 800 are reliably connected together; after the power unit is pulled out from the cabinet 800 to the tray 500, the scissor type lifting mechanism 200 drives the tray 500 to descend, so that the collision block 501 on the tray 500 pushes the locking pull rod 400 to move downwards until the concave part 302 on the locking hand rod 300 is disengaged from the limiting groove 402 on the locking pull rod 400, the locking hand rod 300 enters the unlocking hole 401 communicated with the limiting groove 402, then the locking hand rod 300 rotates in the reverse direction of the first direction for a preset angle to align the limiting bulge 301 with the gourd hole 801, then the locking hand rod 300 is pulled to one side far away from the cabinet 800 to enable the limiting bulge 301 to be disengaged from the gourd hole 801 of the cabinet 800, at the moment, the locking hand rod 300 can rotate around the axis of the locking hand rod and can move along the axis of the locking hand rod 300 to realize unlocking, namely the connection relationship between the power unit transfer trolley and the cabinet 800 is released, and finally the power unit transfer trolley is moved to a required position through the movement of the rack 100, the disassembling work of the power unit is completed. Therefore, the power unit transfer trolley provided by the utility model can be connected with the cabinet 800 into a whole, and can realize a locking function after being connected with the cabinet 800 into a whole, so that the side turning phenomenon of the power unit transfer trolley is reduced, the equipment is protected, the physical health of operators is guaranteed, and the safety coefficient of the power unit disassembly and transfer is improved.
It should be noted that, when the power unit is installed on the power unit transfer trolley, the operation can be realized by only reversely repeating the above operation steps, and the description is omitted here.
In addition, the preset angle of the locking handle bar 300 rotating along the first direction can be 80 degrees, 90 degrees or 100 degrees, and the like, and the angle of the locking handle bar 300 moving along the axis thereof can be limited by the matching of the limiting protrusion 301 and the gourd hole 801 after the locking handle bar 300 rotates by the preset angle is within the protection scope of the utility model; preferably, the preset angle provided by the embodiment of the present invention is 90 °.
Further, the recessed portion 302 may be a rectangular surface contact portion, a trapezoidal surface contact portion, or a waist surface contact portion cut on the locking handle bar 300, and any type that can meet the use requirement is within the scope of the present invention; preferably, the recess 302 provided by the embodiment of the present invention is a rectangular surface contact part cut on the locking lever 300, and the two recesses 302 are symmetrically arranged along the axis of the locking lever 300 to facilitate manufacturing.
Similarly, the limiting groove 402 may be a rectangular groove, a U-shaped groove, or a wedge-shaped groove, and any type that can be engaged with the two recesses 302 is within the scope of the present invention; preferably, the limiting groove 402 provided by the embodiment of the present invention is a rectangular groove capable of matching with the two recesses 302, and has a simple structure and is convenient for processing and manufacturing.
In addition, the scissor lift mechanism 200 provided by the embodiment of the present invention may be driven by a battery, a hydraulic drive, or a pneumatic drive, and the like, and any driving method that can lift the scissor lift mechanism 200 is within the scope of the present invention; preferably, the scissor lift mechanism 200 provided by embodiments of the present invention is driven by the rotation of the handle 201, eliminating the need for on-site power, and reducing post-maintenance work.
Specifically, as shown in fig. 1 and fig. 2, the scissor lift mechanism 200 includes a handle 201, a screw nut assembly 202 connected to the handle 201, and a shear arm 203 connected to a nut of the screw nut assembly 202, so that a screw of the screw nut assembly 202 is driven to rotate by rotation of the handle 201, and one end of the shear arm 203 is driven to perform reciprocating linear movement by the nut of the screw nut assembly 202, thereby achieving lifting.
More specifically, the shear arm 203 includes a first shear arm 2031, a second shear arm 2032, a third shear arm 2033, and a fourth shear arm 2034, a first end of the first shear arm 2031 and a first end of the second shear arm 2032 are both rotatably connected to the rack 100, a first end of the third shear arm 2033 and a first end of the fourth shear arm 2034 are both rotatably connected to the tray 500, the screw nut assembly 202 includes a screw body connected to the handle 201, a first nut rotatably connected to the screw body, and a second nut rotatably connected to the screw body, the screw body is provided with a first thread engaged with the first nut and a second thread engaged with the second nut, the first thread and the second thread are opposite threads, when the screw body rotates, the first nut and the second nut linearly move along the axis of the screw body, and the second end of the first shear arm 2031 and the second end of the third shear arm 2033 are rotatably connected to the first nut, and the second end of the second shear arm 2032 and the second end of the fourth shear arm 2034 are rotatably connected to the second nut, so that drive the rotation of lead screw body through handle 201, the first nut and the second nut that drive reverse setting screw through the rotation of lead screw body keep away from gradually, perhaps are close to gradually, make the second end of first scissors arm 2031 keep away from gradually or be close to gradually with the second end of second scissors arm 2032, the second end of third scissors arm 2033 keeps away from gradually or is close to gradually with the second end of fourth scissors arm 2034, along with the contained angle between first scissors arm 2031 and the second scissors arm 2032 and the contained angle change between third scissors arm 2033 and the fourth scissors arm 2034, cut formula elevating system 200 and drive tray 500 and make elevating movement.
Furthermore, the power unit transfer trolley can realize the movement of the rack 100 by arranging structures such as a traveling wheel, a sliding block and sliding groove assembly or a pulley and sliding rail assembly at the bottom of the rack 100, and any structure which can enable the rack 100 to move belongs to the protection scope of the utility model; preferably, the power unit transfer vehicle provided by the embodiment of the utility model further comprises a traveling wheel 700 disposed at the bottom of the frame 100, so that the frame 100 is moved by the rotation of the traveling wheel 700.
The traveling wheel 700 may be a directional wheel, a universal wheel or a universal belt brake wheel, and the like, and any type that can meet the use requirement is within the protection scope of the present invention.
In addition, the frame 100 is provided with a guide structure for guiding the locking pull rod 400 to move linearly in a reciprocating manner along the height direction of the frame 100, so as to improve the accuracy of the movement track of the locking pull rod 400 along the height direction of the frame 100.
The guide structure may be a guide groove, a guide rail, a guide rod, or the like, and any structure that can guide the locking lever 400 is within the scope of the present invention.
Further, a descending driving structure which can be matched with the collision block 501 is arranged on the locking pull rod 400, so that when the scissor type lifting mechanism 200 drives the tray 500 to descend, the collision block 501 is matched with the descending driving structure to drive the locking pull rod 400 to move downwards until the locking hand lever 300 enters the unlocking hole 401 in the locking pull rod 400.
Similarly, the descending driving structure may be a hole or a groove adapted to the collision block 501, and any structure that can meet the use requirement is within the scope of the present invention.
In addition, the elastic element 600 according to the present invention may be a spring, a rubber block, or a gel air bag, and the like, and any type that can generate a compression elastic force after being compressed and push the locking rod 400 to move upward is within the protection scope of the present invention; preferably, the elastic element 600 provided by the embodiment of the present invention is a spring, and has a simple structure and is convenient to install.
In addition, the utility model also discloses a power unit maintenance system which comprises the power unit transfer trolley, so that all technical effects of the power unit transfer trolley are considered, and the details are not repeated herein.
The terms "first" and "second," and the like in the description and claims of the present invention and the above-described drawings are used for distinguishing between different objects and not for describing a particular order. Furthermore, the terms "comprising" and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not set forth for a listed step or element but may include steps or elements not listed.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A power unit transfer car (buggy), comprising:
a movable frame;
the scissor type lifting mechanism is arranged on the rack;
the locking handle rod is arranged on the rack, can perform reciprocating linear movement along the axis of the locking handle rod and can rotate around the axis of the locking handle rod, a limiting protrusion is arranged on one side, close to the cabinet, of the locking handle rod, a gourd hole capable of being matched with the locking handle rod and the limiting protrusion is formed in the cabinet, and two mutually parallel concave parts are cut in the outer side wall of the locking handle rod;
the locking pull rod can perform reciprocating linear movement along the height direction of the rack, an unlocking hole capable of being matched with the locking hand rod and a limiting groove capable of being matched with the recessed part are formed in the locking pull rod, the unlocking hole and the limiting groove are sequentially and communicated along the height direction of the rack, the locking hand rod penetrates through the hoist hole and rotates for a preset angle along a first direction, the locking hand rod can be limited to perform reciprocating movement along the axis of the locking hand rod through the matching of the hoist hole and the limiting protrusion, and meanwhile, the planes of two side walls of the limiting groove are respectively parallel to the planes of the two recessed parts;
the tray is arranged at the top of the scissor type lifting mechanism, the tray can receive and store the power unit, the outer side wall of the tray is provided with a collision block, and the collision block can push the locking pull rod to move downwards; and
and the elastic element is arranged at the bottom of the locking pull rod, and one side of the elastic element, which is far away from the locking pull rod, is contacted with the rack.
2. The power unit transfer trolley according to claim 1, characterized in that said preset angle is 90 °.
3. The power unit transfer car (buggy) according to claim 1, wherein said recessed portions are rectangular surface contact portions cut out on said locking handle bar, and two of said recessed portions are symmetrically arranged along the axis of said locking handle bar, and said stopper groove is a rectangular groove capable of fitting with both of said recessed portions.
4. The power unit transfer car (buggy) of claim 1, wherein the scissor lift mechanism comprises a handle, a lead screw nut assembly connected to the handle, and a scissor arm connected to a nut of the lead screw nut assembly.
5. The power unit transfer trolley as claimed in claim 4, wherein the shear arms include a first shear arm, a second shear arm, a third shear arm and a fourth shear arm, the first end of the first shear arm and the first end of the second shear arm are both rotatably connected to the frame, the first end of the third shear arm and the first end of the fourth shear arm are both rotatably connected to the tray, the lead screw nut assembly includes a lead screw body connected to the handle, a first nut rotatably connected to the lead screw body and a second nut rotatably connected to the lead screw body, the lead screw body is provided with a first thread engaged with the first nut and a second thread engaged with the second nut, the first thread and the second thread are opposite threads, and the first nut and the second nut linearly move along an axis of the lead screw body when the lead screw body rotates, and the second end of the first shear arm and the second end of the third shear arm are rotatably connected with the first nut, and the second end of the second shear arm and the second end of the fourth shear arm are rotatably connected with the second nut.
6. The power unit transfer car (buggy) of claim 1, further comprising road wheels provided at the bottom of the frame.
7. The power unit transfer car (buggy) of claim 1, wherein a guide structure is provided on the frame for guiding the movement of the locking tie.
8. The power unit transfer car (buggy) of claim 1, wherein the locking tie-rod is provided with a lowering drive structure that can be adapted to the ram.
9. The power unit transfer car (buggy) of claim 1, wherein said elastic element is a spring.
10. A power unit maintenance system comprising a power unit transfer car according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122005196.1U CN215854880U (en) | 2021-08-24 | 2021-08-24 | Power unit transfer trolley and power unit maintenance system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122005196.1U CN215854880U (en) | 2021-08-24 | 2021-08-24 | Power unit transfer trolley and power unit maintenance system |
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| Publication Number | Publication Date |
|---|---|
| CN215854880U true CN215854880U (en) | 2022-02-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122005196.1U Active CN215854880U (en) | 2021-08-24 | 2021-08-24 | Power unit transfer trolley and power unit maintenance system |
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| Country | Link |
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| CN (1) | CN215854880U (en) |
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- 2021-08-24 CN CN202122005196.1U patent/CN215854880U/en active Active
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