CN214723816U - Handheld mechanical type gear box separator - Google Patents
Handheld mechanical type gear box separator Download PDFInfo
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- CN214723816U CN214723816U CN202023278026.2U CN202023278026U CN214723816U CN 214723816 U CN214723816 U CN 214723816U CN 202023278026 U CN202023278026 U CN 202023278026U CN 214723816 U CN214723816 U CN 214723816U
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- gear box
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Abstract
The utility model provides a handheld mechanical type gear box separator, include: connecting plate, connecting rod, vibratory hammer, handle, gasket, screw, flange and square nut. The connecting plate is the fork form, connects the preceding tip lower surface of two yoke arms, installs locking drift nail, and the connecting plate rear end has one section smooth connecting rod, installs the vibratory hammer on the connecting rod, at connecting rod rear end installation cylindrical handle, uses the vibratory hammer to strike on the connecting rod to the rear end and can separate gear box and engine. The utility model has long service life and simple and convenient use.
Description
Technical Field
The utility model relates to a gear box separator for handheld mechanical type of engine belongs to the aircraft and synthesizes guarantee equipment field.
Background
Gear engine who uses in unmanned aerial vehicle field needs dismantle the gear box when regular maintenance now for spare parts such as the clutch in the inspection or the change gear box, with this guarantee engine whole operating mode good operation for a long time. When the gear box is disassembled, the force balance is ensured, and the parts in the gear box are prevented from being impacted when being disassembled. The mold drawing device widely used at present is a handheld type hammer structure mold drawing tool, the mold drawing tool can only exert force in the axial direction under the influence of the stress direction, and the mold drawing tool needs to be horizontally taken out along the direction of a propeller flange of an engine while avoiding the propeller flange when a gear box is detached.
How to solve the inconvenient problem of old-fashioned draft gear instrument design operation to design a change atress direction and can avoid the ring flange simultaneously, the process of extracting is stable, the draft track keeps inconvenient, easy operation is laborsaving, compact structure is reasonable, long service life, small, light in weight, high-efficient portable, the low price of high quality novel gear box separator, is the subject that needs the research at present.
SUMMERY OF THE UTILITY MODEL
The technical problem of the utility model is solved: overcome not enough that old-fashioned drawing die instrument exists, provide a design advanced, rational in infrastructure, job stabilization, control convenience, efficient, easy operation laborsaving, small and exquisite handy novel gear box separator, the utility model discloses whole materials select for use 30CrMnSiA to make, and heat treatment hardness is 28 ~ 32HRC, and the chromium plating is handled in the surface enhancement.
The technical solution of the utility model is as follows:
a hand-held mechanical gearbox decoupler comprising: the device comprises a connecting plate, a connecting rod, a vibration hammer, a handle, a screw, a flange and a square nut;
the connecting plate is in a U-shaped symmetrical structure; through holes are processed at the two free ends, and the axes of the through holes of the connecting plate are vertical to the surface of the connecting plate;
the connecting plate is connected with one end of the connecting rod through a square nut; the other end of the connecting rod is fixedly connected with a handle;
the vibration hammer is sleeved on the connecting rod and can slide along the connecting rod;
one side of the flange is sunken downwards to form a counter bore structure, and the side wall of the counter bore structure is provided with a notch;
a platform is processed in the middle section of the screw, the platform of the screw is positioned in the counter bore structures of the flanges, the two flanges are respectively and fixedly connected with the two free ends of the connecting plate, and the openings of the gaps of the counter bore structures of the two flanges are oppositely arranged; the platform of the screw is positioned between the flange and the connecting plate, and the screw can rotate around a shaft but cannot be separated;
the stud section of the screw is used for connecting the gear box; the screw head and the square nut of the screw are respectively positioned at two sides of the connecting plate, and the square nut is positioned at one side close to the gear box, so that the axis of the connecting rod is coaxial with the output shaft of the gear box as much as possible.
The handle is impacted by the vibration hammer to separate and disassemble the gear box from the engine main body.
The platform of the screw protrudes outwards along the radial direction, and after the screw penetrates through the through hole in the connecting plate, the flange is pressed on the platform of the screw, so that the screw cannot fall off while rotating around the shaft in the counter bore structure of the flange.
The connecting plate and the connecting rod, and the handle and the connecting rod can be disassembled for transportation.
The middle of connecting rod is smooth section, and both ends are M14 coarse thread around the connecting rod, and rear end screw thread section is used for connecting the handle, and front end screw thread section is used for connecting the square nut, and smooth section is used for connecting the bobbing hammer, and the one end that the connecting rod is connected with the connecting plate has the dog along axial processing, the rear end installation handle of connecting rod, dog and handle cooperation use for prevent that the bobbing hammer from droing.
The vibration hammer is inserted from the rear part of the connecting rod, and through holes are axially processed on the vibration hammer, so that the vibration hammer can move back and forth along the axis on the smooth section of the connecting rod.
The handle is cylindrical, a threaded section is processed at the front end of the handle, and the threaded section of the handle is matched with the threaded section at the rear end of the connecting rod; the rear end of the handle is hollowed, a counter bore is processed inwards from the rear end, and the counter bore of the handle is used for installing a gasket and a nut. The outer surface of the handle is carved with anti-skidding lines.
Compared with the prior art, the utility model beneficial effect be:
the utility model relates to a handheld mechanical type gear box separator can avoid the ring flange, extract the process stability, the draft track keeps inconvenient, easy operation is laborsaving, compact structure is reasonable, long service life, small, light in weight, high-efficient portable, high-quality cheap.
Drawings
FIG. 1 is a schematic front view of a handheld mechanical gearbox separator according to the present invention;
fig. 2 is a schematic front view of the connector of the present invention;
fig. 3 is a left side view of the connector of the present invention;
FIG. 4 is a schematic front view of the connecting rod of the present invention;
FIG. 5 is a schematic front view of the vibration hammer of the present invention;
FIG. 6 is a left side view of the vibration hammer of the present invention;
FIG. 7 is a schematic front view of the handle of the present invention;
FIG. 8 is a schematic view of the gasket in front and left view;
fig. 9 is a front view of the screw of the present invention;
fig. 10 is a schematic front view of the flange of the present invention;
fig. 11 is a left side view of the flange of the present invention;
fig. 12 is a schematic front view of the square nut of the present invention;
fig. 13 is a left side view of the square nut of the present invention.
Detailed Description
The utility model relates to a handheld mechanical type gear box separator uses the vibratory hammer to strike on the connecting rod to the rear end and can separate gear box and engine. The method comprises the following steps: connecting plate 1, connecting rod 2, vibratory hammer 3, handle 4, screw 6, flange 7 and square nut 8.
The connecting plate 1 is in a U-shaped symmetrical structure; through holes are processed at the two free ends, and the axes of the through holes of the connecting plate 1 are vertical to the surface of the connecting plate 1; the connecting plate 1 is connected with one end of the connecting rod 2 through a square nut 8; the other end of the connecting rod 2 is fixedly connected with a handle 4; the vibration hammer 3 is sleeved on the connecting rod 2, and the vibration hammer 3 can slide along the connecting rod 2.
One side of the flange 7 is sunken downwards to form a counter bore structure, and the side wall of the counter bore structure is provided with a notch.
A platform is processed in the middle section of the screw 6, the platform of the screw 6 is positioned in a counter bore structure of the flange 7, the two flanges 7 are respectively and fixedly connected with two free ends of the connecting plate 1, and the openings of the notches of the counter bore structures of the two flanges 7 are oppositely arranged; the platform of the screw 6 is positioned between the flange 7 and the connecting plate 1, and the screw 6 can rotate around the shaft without falling out.
The stud section of the screw 6 is used for connecting a gear box; the screw head and the square nut 8 of the screw 6 are respectively positioned at two sides of the connecting plate 1, and the square nut 8 is positioned at one side close to the gear box, so that the axis of the connecting rod 2 is coaxial with the output shaft of the gear box as much as possible.
The handle 4 is impacted by the vibration hammer 3, so that the gear box is separated and detached from the engine body.
As shown in fig. 9, the platform of the screw 6 protrudes outward in the radial direction, and after the screw 6 passes through the through hole on the connecting plate 1, the flange 7 presses on the platform of the screw 6, so that the screw 6 can rotate around the shaft in the counter bore structure of the flange 7 without falling off.
The connecting plate 1 and the connecting rod 2, and the handle 4 and the connecting rod 2 can be disassembled for transportation.
The middle of connecting rod 2 is smooth section, and both ends are M14 coarse thread around connecting rod 2, and rear end screw thread section is used for connecting handle 4, and front end screw thread section is used for connecting square nut 8, and smooth section is used for connecting vibratory hammer 3, and the one end that connecting rod 2 and connecting plate 1 are connected has the dog along axial processing, and handle 4 is installed to the rear end of connecting rod 2, and dog and handle 4 cooperate the use for prevent that vibratory hammer 3 from droing.
The vibration hammer 3 is inserted from the rear part of the connecting rod 2, and a through hole is axially processed on the vibration hammer 3, so that the vibration hammer 3 can move back and forth along the axis on the smooth section of the connecting rod 2.
The handle 4 is cylindrical in shape, a threaded section is processed at the front end of the handle 4, and the threaded section of the handle 4 is matched with the threaded section at the rear end of the connecting rod 2; the rear end of the handle 4 is hollowed, a counter bore is processed inwards from the rear end, and the counter bore of the handle 4 is used for installing a gasket and a nut. The outer surface of the handle 4 is carved with anti-skid lines.
The embodiment of the utility model provides an use gear box on four jar aviation piston engine of a section as dismantling the object, its and engine butt joint face be the plane, have two screw holes in one side, and the footpath is at the bottom of the screw hole
The middle part of the gear box is provided with a plurality of groups of gears which are connected with a crankshaft of the engine, and the gear box can be taken out only by a plurality of times of axial impacts, so that the engine can be maintained.
Examples
As shown in fig. 1, the handheld mechanical gearbox decoupler of the present embodiment comprises: connecting plate 1, connecting rod 2, vibratory hammer 3, handle 4, gasket 5, screw 6, flange 7 and square nut 8.
The square nut 8 is fixed on the connecting plate 1 through two M6x12 cylindrical head socket head cap screws, and the square nut 8 is connected with the connecting rod 2 through a threaded hole.
The connecting plate 1 is a U-shaped left and right symmetrical part in appearance, two equal-height short arms are arranged on the connecting plate 1 and extend forwards, through holes are formed in the short arms, 1 anti-disassembly screw 6 penetrates into each through hole of the connecting plate 1 through a flange 7, the two screws 6 penetrate from the opposite direction of a square nut 8, the square nut 8 is enabled to be closer to one side of a flange plate of the gear box, and the connecting rod 2 is enabled to be coaxial with an output shaft of the gear box as much as possible. Each flange 7 is fixedly connected with the connecting plate 1 through 3M 5x12 hexagon socket head cap screws.
The vibrating hammer is characterized in that a vibrating hammer 3 is installed on a sliding rail of the connecting rod 2, a handle 4 is fixed on an M14 threaded column at the rear end of the connecting rod 2, and an M8 nut and a gasket 5 are installed at the rearmost end of the connecting rod 2 in the radial direction.
The connecting plate 1 is made of high-strength stainless steel. The front part of the short arm is provided with the same through hole and flange mounting hole in the thickness direction for mounting a small flange for dismounting a screw and closing the screw on a mounting surface; an M6 threaded hole is respectively processed on two sides of the longitudinal vertical middle split surface of the connecting plate, and the square nut is installed on the M6 threaded hole; the mounting direction of the square nut mounting surface is opposite to that of the screw, so that the square nut is closer to one side of the engine propeller flange.
Referring to fig. 2 and 3, the connecting plate 1 of the embodiment is made of high-quality stainless steel 30CrMuSin plate with the length of 120mm, the width of 100mm, the thickness of 8mm and the surface roughness of 3.2 μm, and is subjected to surface chromium plating treatment; the connecting plate 1 is a U-shaped left and right symmetrical part and is used for avoiding the gear box; two equal-length equal-height short arms with the length of 100mm, the width of 15mm and the thickness of 8mm of the connecting plate 1 extend forwards, and the thickness direction of the front parts of the short arms is processed
And 3M 4 female threaded holes for mounting the screws 6 and the flange 7; two sides of the front end of the connecting plate 1 are symmetrically provided with inward R10 chamfers, and the center of the front end is symmetrically provided with two R10 chamfers
An internal threaded hole for connecting the square nut 8;
referring to FIG. 4, the connecting rod 2 of the present embodiment is made of high-quality stainless steel 30CrMuSin plate material, and has a total length of 510mm, a maximum diameter of 25mm, a surface roughness of 3.2 μm, and a surface chromium plating treatment; the connecting rod 2 is cylindrical, the front end of the connecting rod is provided with M14 coarse threads, and a tool withdrawal groove is arranged behind the tool withdrawal groove
The circular truncated cone with the thickness of 4mm is used for limiting the vibration hammer 3 on the smooth section of the middle part of the connecting rod 2; the rear part of the connecting rod 2 is provided with two sections of threads, wherein the two sections of threads are a section of M14 coarse threads at first, and a section of M8 coarse threads at the rear part, and the two sections of threads are used for installing the handle 4 and the gasket 5.
Referring to fig. 5 and 6, the vibration hammer 3 of the present embodiment is made of a high-quality stainless steel 30CrMuSin plate, 110mm in maximum diameter 65mm, 3.2 μm in surface roughness, and is subjected to surface chromium plating treatment; vibration hammer 3 axial directionIs processed with
For docking with the connecting rod 2; diameter 45mm in the middle part of the vibratory hammer 3, length 100, front and back both ends diameter 65mm, long 5mm, the purpose that diameter 65mm is greater than middle part diameter 45mm in the front and back both ends of vibratory hammer 3 can avoid operating personnel hand injury when using the vibratory hammer to strike.
Referring to FIG. 7, the handle 4 of this embodiment is made of high-quality stainless steel 30CrMuSin plate material with a total length of 90mm, a maximum diameter of 40mm, a surface roughness of 3.2 μm, and a surface chromium plating treatment; the front end of the handle 4 is axially processed with M14 coarse thread with the depth of 15mm and is used for installing the connecting rod 2; two sides of the rear end of the handle 4 are provided with symmetrical outward 2-degree oblique angles (namely conical sections), and the rear end of the handle 4 is internally provided with a bevel gear at the axial center
The depth of the counter bore is 75mm, and the purpose of processing the counter bore is to mount a gasket 5 and a fixing nut, and remove redundant materials and reduce the weight of parts; the surface of the handle 4 is processed with anti-skid reticulate patterns.
Fig. 9 shows a screw 6 according to an embodiment of the present invention, in which the screw 6 is made of a high-quality stainless steel 30CrMuSin plate material, the total length is 50mm, the maximum diameter is 15mm, the surface roughness is 3.2 μm, and the surface is subjected to chrome plating. The front end (namely the left part in figure 9) of the screw 6 is provided with a section of M8 external thread, the axial length of the thread section is 16mm, a first polished rod with the length of 4mm and the diameter of 8mm is processed after the tool withdrawal groove, then a platform with the diameter of 11mm and the length of 2.5mm is processed, and then a second polished rod with the diameter of 8mm is processed, and the purpose of processing the platform, the first polished rod and the second polished rod is to press the flange 7 on the platform after the screw is arranged on the connecting plate 1 so as to prevent the screw 6 from falling off from the connecting plate 1; the rear end (corresponding to the right screw head part in fig. 9) of the screw 6 is a section of a reticulate pattern polished rod with the diameter of 15mm and the length of 15mm, and anti-skid reticulate patterns are processed on the reticulate pattern polished rod and used for rotating the screw. As shown in fig. 9, the external thread, the tool withdrawal groove, the first polish rod, the platform, the second polish rod and the reticulated polish rod are arranged from left to right in sequence.
As shown in FIG. 10 and FIG. 11, the flange 7 of this embodiment is made of a high-quality stainless steel 30CrMuSin plate, has a maximum diameter of 30mm, a total thickness of 4.5mm, a surface roughness of 3.2 μm, and is subjected to surface chromium plating treatment; a central through hole with the diameter of 8.3mm is processed in the middle of the flange 7, so that the flange can be arranged on a polished rod of the screw 6; a boss with the top protruding 2mm in thickness and the outer diameter of 14mm is arranged at the top of the flange 7, a counter bore with the diameter of 11.2mm (matched with the outer diameter of the platform of the screw 6) and the depth of 2.6mm is processed upwards in the axis direction (the depth direction of the counter bore is consistent with the protruding direction of the boss), so that the platform of the screw 6 is placed in the counter bore; the flange 7 is respectively provided with a through hole with the diameter of 4.2mm in the upper, left and right directions with the radius of 11mm away from the axis, and the through holes are used for installing the flange 7 on the connecting plate 1.
Referring to fig. 12 and 13, the square nut 8 of the embodiment is made of high-quality stainless steel 30CrMuSin plate, has a length of 52mm, a width of 20mm, a thickness of 26mm, a surface roughness of 3.2 μm, and is subjected to surface chromium plating treatment; the square nuts 8 are respectively processed one by one from top to bottom at the positions 18.5mm away from the center
For mounting on the connection plate 1; two sides of the front end of the square nut 8 in the thickness direction are provided with inward 45-degree oblique angles symmetrically, and an M14 internal thread through hole is processed in the center of the thickness direction and used for installing the connecting rod 2.
By screwing two screws 6 respectively completely into the connecting plate 1
The platforms of two screws 6 are respectively assembled with flanges 7, and then the flanges 7 and the connecting plate 1 are fixedly connected by using 3M 4X12 screws. And (3) mounting the square nuts 8 on the threaded holes of the two M6 of the connecting plate 1, wherein the mounting direction is opposite to the direction of the screw heads of the screws 6, namely the square nuts 8 and the screw heads of the screws 6 are distributed on two sides of the connecting plate 1, and the screw heads of the screws 6 and the top boss of the flange 7 are positioned on the same side of the connecting plate 1.
The M14 threaded column on the connecting rod 2 is screwed into the square nut 8, and the installation direction faces to the rear of the connecting plate 1. After the vibrating hammer 3 is installed on the smooth section of the connecting rod 2, the handle 4 is screwed into the M14 threaded section at the rear end of the connecting rod 2, the gasket 5 is placed in a counter bore at the rear end of the handle 4, and the handle and the gasket 5 are fixed by using an M14 nut. To this end, a handheld mechanical gearbox decoupler of the present embodiment is assembled.
The utility model relates to a hand-held mechanical type gear box separator which is assembled and molded by the above parts, the center distance between two screws 2 is 78mm, the screws extend out of a connecting plate by 114mm, and the stress requirement of the screws 2 is met after the screws are arranged at one side of an engine gear box; the mounting direction of the square nut 8 is opposite to that of the screw 2, so that when the vibration hammer 3 is knocked, the direction of the force is closer to the central position of the gear box, and the uneven stress of the gear box is prevented; two equal-height short arms of the connecting plate 1 extend out by 100mm, and the distance between the two short arms is 90mm, so that the short arms can be prevented from contacting with a flange plate on an engine gear box. The application range of the handheld mechanical gearbox separator is that a flange plate on a gearbox is not larger than that of the handheld mechanical gearbox separator
Or the flange plate contacts the connecting plate 1, the gear box dismounting requirements of most aviation gear engines can be met, and for a very special gear box, the special use requirements can be met only by adjusting the linear size of individual parts on the premise of not changing the appearance and the structural connection form of any part.
Utilize the utility model discloses a special tool dismantles the process of gear box does:
1) two screws 2 are installed in M8 threaded holes on one side of the gear box, and the threaded sections of the screws 2 are completely screwed into the side wall of the gear box.
2) Handle 4 is held by one hand, and vibrohammer 3 is held by the other hand and is forcefully knocked towards handle 4, and the gearbox is slowly separated after being impacted backwards.
3) And (3) continuously repeating the operation of the step 2) to finally finish the disassembly work of the gearbox.
Use the utility model discloses a handheld mechanical type gear box separator dismantles the during operation, need notice following 5 points:
1. when a vibration hammer is used for knocking, the force application direction is kept consistent with the axial direction of the gear box as much as possible;
2. when the vibration hammer is used for knocking, any object cannot be placed in the stroke of the vibration hammer, so that accidental injury is prevented;
3. when the vibration hammer is knocked, the rhythm is not too fast, and the condition of the gear box needs to be observed at any moment to adjust the knocking force;
4. the threaded section of the screw needs to be completely screwed into the gear box;
5. the fixing screws on the gear box must be completely removed;
the foregoing is a detailed description of the present invention in connection with specific preferred embodiments and is not intended to limit the invention to the precise forms disclosed. To technical field's technical personnel, do not deviate from the utility model discloses under the prerequisite of design, right the utility model discloses an each component part, positional relationship and connected mode under the condition that does not change its function, the equivalent transform that goes on or replace also fall into the protection scope of the utility model.
Those skilled in the art will appreciate that the details of the present invention not described in detail herein are well within the skill of those skilled in the art.
Claims (8)
1. A hand-held mechanical gearbox decoupler, comprising: the device comprises a connecting plate (1), a connecting rod (2), a vibration hammer (3), a handle (4), a screw (6), a flange (7) and a square nut (8);
the connecting plate (1) is in a U-shaped symmetrical structure; through holes are processed at the two free ends, and the axes of the through holes of the connecting plate (1) are vertical to the surface of the connecting plate (1);
the connecting plate (1) is connected with one end of the connecting rod (2) through a square nut (8); the other end of the connecting rod (2) is fixedly connected with a handle (4);
the vibration hammer (3) is sleeved on the connecting rod (2), and the vibration hammer (3) can slide along the connecting rod (2);
one side of the flange (7) is sunken downwards to form a counter bore structure, and a gap is formed in the side wall of the counter bore structure;
a platform is processed in the middle section of the screw (6), the platform of the screw (6) is positioned in a counter bore structure of the flange (7), the two flanges (7) are respectively and fixedly connected with two free ends of the connecting plate (1), and the opening directions of gaps of the counter bore structures of the two flanges (7) are oppositely arranged; the platform of the screw (6) is positioned between the flange (7) and the connecting plate (1), and the screw (6) can rotate around a shaft but cannot be separated;
the stud section of the screw (6) is used for connecting the gear box; the screw head and the square nut (8) of the screw (6) are respectively positioned at two sides of the connecting plate (1), and the square nut (8) is positioned at one side close to the gear box, so that the axis of the connecting rod (2) is coaxial with the output shaft of the gear box as much as possible.
2. A hand-held mechanical gearbox decoupler as claimed in claim 1 wherein: the handle (4) is impacted by the vibration hammer (3), so that the gear box is separated and detached from the engine main body.
3. A hand-held mechanical gearbox decoupler as claimed in claim 1 wherein: the platform of the screw (6) protrudes outwards along the radial direction, and after the screw (6) penetrates through the through hole in the connecting plate (1), the flange (7) presses on the platform of the screw (6), so that the screw (6) can rotate around the shaft in the counter bore structure of the flange (7) and cannot fall off.
4. A hand-held mechanical gearbox decoupler as claimed in any one of claims 1 to 3, wherein: the connecting plate (1) and the connecting rod (2), and the handle (4) and the connecting rod (2) can be disassembled for transportation.
5. A hand-held mechanical gearbox decoupler as claimed in claim 4 wherein: the middle of connecting rod (2) is smooth section, and both ends are M14 coarse thread around connecting rod (2), and rear end screw thread section is used for connecting handle (4), and front end screw thread section is used for connecting square nut (8), and smooth section is used for connecting vibratory hammer (3), and the one end that connecting rod (2) and connecting plate (1) are connected has the dog along axial processing, rear end installation handle (4) of connecting rod (2), dog and handle (4) cooperation are used for preventing vibratory hammer (3) to drop.
6. A hand-held mechanical gearbox decoupler as claimed in claim 5 wherein: the vibration hammer (3) is inserted from the rear part of the connecting rod (2), and a through hole is axially processed in the vibration hammer (3), so that the vibration hammer (3) can move back and forth along the axis on the smooth section of the connecting rod (2).
7. A hand-held mechanical gearbox decoupler as claimed in claim 6 wherein: the handle (4) is cylindrical in shape, a threaded section is processed at the front end of the handle (4), and the threaded section of the handle (4) is matched with the threaded section at the rear end of the connecting rod (2); the rear end of the handle (4) is hollowed, a counter bore is processed inwards from the rear end, and the counter bore of the handle (4) is used for installing a gasket and a nut.
8. A hand-held mechanical gearbox decoupler as claimed in claim 7 wherein: the outer surface of the handle (4) is carved with anti-skid lines.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023278026.2U CN214723816U (en) | 2020-12-30 | 2020-12-30 | Handheld mechanical type gear box separator |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202023278026.2U CN214723816U (en) | 2020-12-30 | 2020-12-30 | Handheld mechanical type gear box separator |
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| CN214723816U true CN214723816U (en) | 2021-11-16 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112692782A (en) * | 2020-12-30 | 2021-04-23 | 彩虹无人机科技有限公司 | Handheld mechanical type gear box separator |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112692782A (en) * | 2020-12-30 | 2021-04-23 | 彩虹无人机科技有限公司 | Handheld mechanical type gear box separator |
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