CN114986439A - Pin pulling device - Google Patents
Pin pulling device Download PDFInfo
- Publication number
- CN114986439A CN114986439A CN202210851243.0A CN202210851243A CN114986439A CN 114986439 A CN114986439 A CN 114986439A CN 202210851243 A CN202210851243 A CN 202210851243A CN 114986439 A CN114986439 A CN 114986439A
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- pin
- pull rod
- limiting plate
- side plate
- plate
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- 210000000078 claw Anatomy 0.000 claims description 34
- 238000009434 installation Methods 0.000 abstract description 9
- 238000000034 method Methods 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 3
- 230000008569 process Effects 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
- B25B27/02—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same
- B25B27/023—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same using screws
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Insertion Pins And Rivets (AREA)
- Mutual Connection Of Rods And Tubes (AREA)
Abstract
The invention provides a pin pulling device which is used for pulling out a pin and comprises a distance adjusting assembly and a pin pulling assembly; the distance adjusting assembly comprises an installation frame, a limiting plate and a lug, wherein the limiting plate and the installation frame are arranged at intervals and are movably connected with the installation frame along the axial direction of the pin; the convex block is positioned on the surface of one side of the limiting plate, which faces the mounting frame, and the convex block can extend into the pin hole at one end of the tail of the pin; the pin pulling assembly comprises a first pull rod and a fixing piece which can be connected with the head of the pin, the first pull rod is movably connected with the mounting frame along the axial direction of the pin, and the fixing piece is positioned at the bottom of the first pull rod, close to the limiting plate, and opposite to the lug; the first pull rod is detachably and fixedly connected with the fixing piece. The method is simple to operate, remarkable in effect and worthy of popularization.
Description
Technical Field
The invention relates to the field of equipment assembly and disassembly, in particular to a pin pulling device.
Background
The pin shaft is a standard fastener, can be used for static fixed connection and connection between relative moving parts, can form hinge connection, and is widely applied to equipment.
When maintaining or disassembling the part, in open space, the accessible knocks round pin axle afterbody usually and takes out, but this method limitation is very strong, mainly has following drawback:
firstly, when the running time is longer, the pin shaft is stressed, and the taking-out difficulty is larger; when the pin shaft is applied to a narrow space, the pin shaft is difficult to take out in a tail knocking mode; secondly, the method has low utilization efficiency of force, has high requirements on the physical strength of operators, and easily damages parts and influences the precision of positioning holes by forcefully knocking with one taste, thereby causing unnecessary loss; finally, the knocking device is generally heavy and complex in structure and inconvenient to carry.
In conclusion, the pin pulling device is designed.
Disclosure of Invention
The invention provides a pin pulling device, which aims to solve the technical problems that a pin shaft in a narrow space is difficult to take out, the taking-out process is extremely labor-consuming, the structure is complex and not portable and the like, and comprises a distance adjusting assembly and a pin pulling assembly; wherein,
the distance adjusting assembly comprises an installation frame, a limiting plate and a convex block, wherein the limiting plate and the installation frame are arranged at intervals and are movably connected with the installation frame along the axial direction of the pin; the lug is positioned on the surface of one side of the limiting plate, which faces the mounting rack, and the lug can extend into the pin hole at one end of the tail of the pin;
the pin pulling assembly comprises a first pull rod and a fixing piece which can be connected with the head of the pin, the first pull rod is movably connected with the mounting frame along the axial direction of the pin, and the fixing piece is positioned on one side of the first pull rod, close to the limiting plate, and is arranged opposite to the bump; the first pull rod is detachably and fixedly connected with the fixing piece.
Furthermore, the first pull rod is movably connected with the mounting frame through threads.
Furthermore, the fixing piece comprises a first hook claw, a second hook claw and a connecting part, wherein the first hook claw and the second hook claw are arranged in parallel and are positioned at two ends of the surface, facing the limiting plate, of the connecting part;
the first pull rod is connected to the surface of the connecting part, which faces away from the limiting plate.
The maximum distance between the first hook claw and the second hook claw is larger than the outer diameter of the head of the pin, and the head of the pin is buckled at the opening of the two hook claws.
Furthermore, the connecting portion is provided with a notch formed in the edge, and one side, close to the limiting plate, of the first pull rod is provided with a clamping groove matched with the notch.
Furthermore, the mounting rack comprises a main board, a first side board and a second side board are oppositely arranged along two ends of the main board, the second side board is close to and parallel to the limiting board relative to the first side board, a through hole opposite to the pin is formed in the second side board, and the diameter of the through hole is larger than the outer diameter of the head of the pin; the first pull rod is movably connected with the first side plate through threads and is sleeved in the second side plate in a sliding mode.
Furthermore, the mounting bracket still includes the slide bar, and the slide bar sets up perpendicularly in the surface of second curb plate orientation limiting plate, and the limiting plate slip cap is established on the slide bar, and the activity journey is limited in between the tip that second curb plate and slide bar kept away from the second curb plate.
Further, the roll adjustment subassembly is still including the second pull rod, and the second pull rod is perpendicular and fixed connection in limiting plate, and through screw thread swing joint in first curb plate.
Furthermore, a first nut is arranged at the joint of the second pull rod and the first side plate to adjust and fix the distance between the mounting frame limiting plates.
Further, the movable stroke length of the first pull rod is not less than the length of the pin.
Compared with the prior art, the invention at least comprises the following advantages:
1. the pin pulling assembly and the distance adjusting assembly are used and matched with each other to pull out the pin, so that the structure is exquisite and portable, and the pin pulling device can be applied to narrow environments;
2. the limiting plate contacting the bottom of the pin shaft is provided with the convex block, so that the originally balanced stress of the pin shaft becomes uneven, and the difficulty in taking out the pin shaft is reduced.
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 structures shown in the drawings without creative efforts.
FIG. 1 is a schematic view illustrating a state of pin pulling of the pin pulling apparatus according to an embodiment of the present invention;
FIG. 2 is a front view of the pin remover without the pin removed in one embodiment of the present invention;
FIG. 3 is a rear view of the pin remover without the pin removed in one embodiment of the present invention;
FIG. 4 is a front view of the pin extractor with the pin removed according to one embodiment of the present invention;
FIG. 5 is a rear view of the pin remover with the pin removed according to one embodiment of the present invention;
FIG. 6 is a schematic view of a pin in a narrow part according to an embodiment of the present invention;
FIG. 7 is a schematic view of a pin pulling apparatus applied to a narrow part according to an embodiment of the present invention.
Reference numerals are as follows: 1. a mounting frame; 2. a limiting plate; 3. a bump; 4. a first pull rod; 5. a pin; 6. a fixing member; 7. a main board; 8. a first side plate; 9. a second side plate; 10. a slide bar; 11. a second pull rod; 12. a first nut; 13. a second nut; 14. and a through hole.
It should also be noted that the device of the invention does not include pins, which are shown in the block diagram only to make the device more intuitive.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is apparent 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 obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
Moreover, the technical solutions in the embodiments of the present invention may be combined with each other, but it is necessary to be able to be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent, and is not within the protection scope of the present invention.
When numerical ranges are given in the examples, it is understood that both endpoints of each of the numerical ranges and any value therebetween can be selected unless the invention otherwise indicated. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs and the description of the present invention, and any methods, apparatuses, and materials similar or equivalent to those in the embodiments of the present invention may be used to practice the present invention.
Referring to fig. 1-5, the present invention provides a pin pulling apparatus for pulling out a pin 5, including a distance adjusting assembly and a pin pulling assembly. The distance adjusting assembly comprises an installation frame 1, a limiting plate 2 and a convex block 3, wherein the limiting plate 2 and the installation frame 1 are arranged at intervals and movably connected with the installation frame 1 along the axial direction of a pin 5; the lug 3 is located the limiting plate 2 towards the surface of mounting bracket 1 one side, and the lug 3 can stretch into the pinhole at the place of the afterbody one end of pin 5.
The pin 5 is mounted in the pin hole. The pin comprises two ends extending along the self axial direction, wherein one end is a head part, the other end is a tail part, and the diameter of the head part is larger than that of the tail part.
The projection 3 can extend into the pin hole at the tail end of the pin 5. Illustratively, the diameter of the portion of the projection 3 away from the limit plate 2 is smaller than the diameter of the pin hole, for example, the projection 3 may have a cylindrical shape, a conical shape, a stepped shape, and the like, and the specific shape is not limited.
The limiting plate 2 and the mounting rack 1 are arranged at intervals, specifically, when the pin is to be pulled out, the limiting plate 2 is positioned on one side of the tail of the pin, the convex block 3 abuts against the pin 5 or extends into a pin hole where the pin 5 is positioned, and the mounting rack 1 is positioned on one side of the head of the pin. Adjust the interval of limiting plate 2 and mounting bracket 1, along with the reduction of interval, drive limiting plate 2 along the axial of pin towards mounting bracket 1 motion, so, lug 3 exerts an axial thrust to pin 5 for pin 5 is to the position displacement of mounting bracket 1, makes the head of pin 5 release from the pinhole.
Referring to fig. 2, the protruding block 3 extends into the positioning hole, an axial thrust is independently added to the pin 5, the original balanced stress of the pin 5 is broken, and compared with a mode of knocking the tail of the pin 5 (force is simultaneously applied to the pin 5 and a part, the pin 5 moves relatively, and the pin 5 is loosened), the effect of protecting the part is achieved while the force is saved.
The pulling pin assembly comprises a first pull rod 4 and a fixing piece 6 which can be connected with the head of the pin 5, the first pull rod 4 is movably connected with the mounting frame 1 along the axial direction of the pin 5, and the fixing piece 6 is located at the bottom of the first pull rod 4 close to the limiting plate 2 and is arranged opposite to the bump 3.
In some embodiments, the first pull rod 4 is movably connected with the mounting frame 1 through a thread, so that the first pull rod 4 can be unscrewed from the mounting frame 1, the rotary motion of the first pull rod 4 is converted into the axial motion of the pin 5, and the pulling-out process is more labor-saving.
In some embodiments, the fixing member 6 includes a first hook claw, a second hook claw and a connecting portion, the first hook claw and the second hook claw are arranged in parallel and are located at two ends of the surface of the connecting portion facing the limiting plate 2; the first pull rod 4 is connected to a surface of the connecting portion facing away from the limiting plate 2.
In some embodiments, the maximum distance between the first hook claw and the second hook claw is larger than the outer diameter of the head of the pin 5, and the opening of the two hook claws is buckled on the head of the pin 5.
When the special use, can collude the relative setting of claw along the direction that is on a parallel with limiting plate 2 with two, will collude the claw and detain 5 heads of pin from the side, the two realizes fixed connection. It will be appreciated that the claws may also be snapped onto the head of the pin 5 from above or below.
As another embodiment of the present invention, two hooks may be provided in a direction perpendicular to the stopper plate 2.
In other embodiments, the fixing member 6 may also be multi-claw shaped, and four hook claws may be provided, wherein an opening and closing range of one of the hook claws is not less than 90 degrees, so that the pin 5 enters a wrapping range of the hook claw, and when the pin 5 is buckled by the other three hook claws, the movable hook claw is closed to realize fixed connection.
The structural concrete dimensions of the fixing element 6 can be adapted accordingly depending on the dimensions of the pin 5. The width of the hook claw can be larger than the outer diameter of the head of the pin 5, and when the width and the farthest distance of the hook claw are larger than the outer diameter of the head of the pin 5, the pin 5 can be ensured not to rotate along with the fixing piece 6 (when the fixing piece 6 rotates along with the rotation of the first pull rod 4).
Referring to fig. 3, it can be seen that in some embodiments, the connecting portion has a notch formed from an edge thereof, the bottom of the first pull rod 4 has a notch matching with the notch, and the fixing member 6 laterally fastens the notch to the notch. Wherein, the edge both includes connecting portion and colludes the edge that the claw meets, include connecting portion again not with collude the edge that the claw meets.
The clamping groove can be an annular groove, the outer diameter of the bottom of the first pull rod 4 is larger than that of the annular groove, and the fixing piece 6 clamped into the annular groove is firmly buckled.
When the notch and the clamping groove are not tightly connected, the fixing piece cannot rotate along with the rotation of the first pull rod 4.
When the fixing piece 6 is used specifically, the head of the pin 5 can be buckled by the fixing piece 6, and meanwhile, the notch of the hook claw connecting part is clamped into the clamping groove at the bottom of the first pull rod 4, so that the pin 5, the fixing piece 6 and the first pull rod 4 are fixedly connected, and specifically, see fig. 4 and 5.
Illustratively, the first pull rod 4 may also be detachably and fixedly connected with the fixing member 6 by magnetic attraction or the like.
In some embodiments, the mounting frame 1 includes a main plate 7, the main plate 7 is provided with a first side plate 8 and a second side plate 9 along two opposite ends, the second side plate 9 is close to and parallel to the limiting plate 2 relative to the first side plate 8, the second side plate 9 is provided with a through hole 14 opposite to the pin 5, and the diameter of the through hole 14 is greater than the outer diameter of the head of the pin 5; the first pull rod 4 is movably connected with the first side plate 8 through threads and is slidably sleeved in the second side plate 9.
The first side plate 8 and the second side plate 9 are oppositely arranged along two ends of the main plate 7, so that the mounting frame 1 can be in a U shape.
The diameter of the through hole 14 is larger than the outer diameter of the head of the pin 5 to enable the pin 5 to protrude from the second side plate. Utilize the mounting to realize behind pin 5, mounting 6, the fixed connection of first pull rod 4 three, can utilize the spanner to constantly unscrew first pull rod 4 from first curb plate 8.
In some embodiments, the mounting bracket 11 further includes a sliding rod 10, the sliding rod 10 is vertically disposed on a surface of the second side plate 9 facing the limiting plate 2, the limiting plate 2 is slidably sleeved on the sliding rod 10, and the moving stroke is limited between the second side plate 9 and an end of the sliding rod 10 far away from the second side plate 9, so that the limiting plate 2 is parallel to the mounting bracket.
Limiting holes can be further formed in the limiting plates 2, the sliding rods 10 are sleeved in the limiting plates, and the sliding rods can also play a guiding role, so that the limiting plates and the mounting rack are prevented from being deviated.
Furthermore, the limiting hole can be additionally provided with an anti-skidding shaft sleeve or a foam layer, so that friction is increased, and sliding is stabilized.
In some embodiments, the distance adjustment assembly further includes a second pull rod 11, and the second pull rod 11 is perpendicular to and fixedly connected to the limiting plate 2, and is movably connected to the first side plate 8 through a thread.
For example, the second pull rod 11 may further include a shaft sleeve and a second nut 13, where the shaft sleeve may be stepped, and the shaft sleeve and the second nut cooperate to fix the position of the position limiting plate 2 and prevent deviation.
Further exemplary, the second tie rod 11 may also be welded directly to the limit plate 2.
Can support the pinhole at lug 3 in the time, the second pull rod 11 of screwing for limiting plate 2 constantly is close to mounting bracket 1, and meanwhile, slide bar 10 on mounting bracket 1 also slides in limiting plate 2 thereupon, guarantees limiting plate 2's displacement stability.
In some embodiments, a first nut 12 is disposed at the connection position of the second pull rod 11 and the first side plate 8 to adjust and fix the distance between the plates 2 of the mounting bracket 11.
In some embodiments, the active stroke length of the first pull rod 4 is not less than the length of the pin 5.
That is, the length of the thread on the first pull rod 4 and the length of the main plate 7 are not less than the length of the pin 5, so that the first pull rod 4 can be screwed out by a sufficient length to take out the pin 5 and the mounting frame 1 has a sufficient space to accommodate the pin 5.
Referring to fig. 5, in a specific use, when the first pull rod 4 is pulled to the bottom of the thread in the direction close to the limit plate 2, the pin 5 is completely taken out, and the pin pulling is completed.
To facilitate a further understanding of the invention by those skilled in the art, reference will now be made to the following examples:
as shown in fig. 6 and 7, when the pin pulling device is specifically used in a narrow part, the first nut 12 is firstly unscrewed, the second pull rod 11 is screwed to the outermost end, the first pull rod 4 is screwed to the innermost end, and the second nut 13 is tightly fixed on the limiting plate 2 without looseness, namely, the second pull rod 11 is fixedly connected with the limiting plate 2. And then the convex block 3 is abutted against the pin hole, the first nut 12 is screwed by a spanner, so that the distance between the mounting frame 1 and the limiting plate 2 is continuously reduced, and the pin 5 is pressed out of the pin hole by the convex block 3. When the head of the pin 5 protrudes out of the through hole 14, the fixing piece 6 is sleeved on the head of the pin 5 from the side. Meanwhile, the notch of the connecting part of the fixing part 6 is fastened with the clamping groove on the first pull rod 4, and the second pull rod 11 is screwed out by using a wrench to complete the pin pulling process.
In the description of the present invention, it is to be understood that the indicated orientations or positional relationships are based on the orientations or positional relationships shown in the drawings, which are merely for convenience in describing the present invention and for simplicity in description, and are not intended to indicate or imply that the indicated devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
In the present invention, unless otherwise explicitly specified or limited, for example, it may be fixedly attached, detachably attached, or integrated; can be mechanically or electrically connected; the terms may be directly connected or indirectly connected through an intermediate, and may be communication between two elements or interaction relationship between two elements, unless otherwise specifically limited, and the specific meaning of the terms in the present invention will be understood by those skilled in the art according to specific situations.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. The pin pulling device is characterized by being used for pulling out a pin, and comprising a distance adjusting assembly and a pin pulling assembly; wherein,
the distance adjusting assembly comprises a mounting frame, a limiting plate and a convex block, wherein the limiting plate and the mounting frame are arranged at intervals and movably connected with the mounting frame along the axial direction of the pin; the lug is positioned on the surface of one side, facing the mounting rack, of the limiting plate, and the lug can extend into the pin hole at one end of the tail of the pin;
the pin pulling assembly comprises a first pull rod and a fixing piece which can be connected with the head of the pin, the first pull rod is movably connected with the mounting frame along the axial direction of the pin, and the fixing piece is positioned on one side, close to the limiting plate, of the first pull rod and is arranged opposite to the lug; the first pull rod is detachably and fixedly connected with the fixing piece.
2. The pin pulling apparatus according to claim 1, wherein the first pull rod is movably connected to the mounting frame by a screw thread.
3. The pin pulling device according to claim 1, wherein the fixing member comprises a first hooking claw, a second hooking claw and a connecting portion, the first hooking claw and the second hooking claw are arranged in parallel and are located at two ends of the surface, facing the limiting plate, of the connecting portion;
the first pull rod is connected to the surface of the connecting portion, which faces away from the limiting plate.
4. The pin pulling device according to claim 3, wherein the maximum distance between the first hook claw and the second hook claw is larger than the outer diameter of the head of the pin, and the opening of the two hook claws buckles the head of the pin.
5. The pin pulling device according to claim 3, wherein the connecting portion is provided with a notch formed from an edge, and a slot matched with the notch is formed in one side of the first pull rod close to the limit plate.
6. The pin pulling device according to claim 1, wherein the mounting frame comprises a main plate, a first side plate and a second side plate are oppositely arranged along two ends of the main plate, the second side plate is close to and parallel to the limiting plate relative to the first side plate, a through hole opposite to the pin is arranged on the second side plate, and the diameter of the through hole is larger than the outer diameter of the head of the pin;
the first pull rod is movably connected with the first side plate through threads and is sleeved in the second side plate in a sliding mode.
7. The pin pulling device according to claim 6, wherein the mounting bracket further comprises a sliding rod vertically disposed on a surface of the second side plate facing the limiting plate, the limiting plate is slidably sleeved on the sliding rod, and a moving stroke is limited between the second side plate and an end of the sliding rod far away from the second side plate.
8. The pin pulling apparatus according to claim 6, wherein the distance adjusting assembly further comprises a second pull rod, and the second pull rod is perpendicular to and fixedly connected to the position limiting plate and movably connected to the first side plate through a thread.
9. The pin pulling device according to claim 8, wherein a first nut is arranged at a joint of the second pull rod and the first side plate to adjust and fix the distance between the mounting rack and the limiting plate.
10. The pin pulling apparatus according to claim 8, wherein the movable stroke length of the first pull rod is not less than the length of the pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210851243.0A CN114986439B (en) | 2022-07-19 | 2022-07-19 | Pin pulling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210851243.0A CN114986439B (en) | 2022-07-19 | 2022-07-19 | Pin pulling device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114986439A true CN114986439A (en) | 2022-09-02 |
| CN114986439B CN114986439B (en) | 2023-08-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210851243.0A Active CN114986439B (en) | 2022-07-19 | 2022-07-19 | Pin pulling device |
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| Country | Link |
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| CN (1) | CN114986439B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102328196A (en) * | 2011-05-30 | 2012-01-25 | 泰安力博机电科技有限公司 | Vibration type pin pulling device |
| CN105171668A (en) * | 2015-08-20 | 2015-12-23 | 北京无线电测量研究所 | Inserting and pulling device |
| CN108312105A (en) * | 2018-04-23 | 2018-07-24 | 霍州煤电集团鑫钜煤机装备制造有限责任公司白龙设备修配分公司 | A kind of Multifunctional mobile pin pulling out device |
| AU2020101899A4 (en) * | 2020-08-20 | 2020-09-24 | East China University Of Technology | A Geological Exploration Equipment |
| CN212825105U (en) * | 2020-07-01 | 2021-03-30 | 甘肃酒钢集团宏兴钢铁股份有限公司 | Transmission chain extracting tool |
| CN112917429A (en) * | 2021-03-26 | 2021-06-08 | 中国人民解放军陆军航空兵学院 | Special dismounting tool of helicopter horizontal stabilizer connecting pin puller formula |
-
2022
- 2022-07-19 CN CN202210851243.0A patent/CN114986439B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102328196A (en) * | 2011-05-30 | 2012-01-25 | 泰安力博机电科技有限公司 | Vibration type pin pulling device |
| CN105171668A (en) * | 2015-08-20 | 2015-12-23 | 北京无线电测量研究所 | Inserting and pulling device |
| CN108312105A (en) * | 2018-04-23 | 2018-07-24 | 霍州煤电集团鑫钜煤机装备制造有限责任公司白龙设备修配分公司 | A kind of Multifunctional mobile pin pulling out device |
| CN212825105U (en) * | 2020-07-01 | 2021-03-30 | 甘肃酒钢集团宏兴钢铁股份有限公司 | Transmission chain extracting tool |
| AU2020101899A4 (en) * | 2020-08-20 | 2020-09-24 | East China University Of Technology | A Geological Exploration Equipment |
| CN112917429A (en) * | 2021-03-26 | 2021-06-08 | 中国人民解放军陆军航空兵学院 | Special dismounting tool of helicopter horizontal stabilizer connecting pin puller formula |
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| Publication number | Publication date |
|---|---|
| CN114986439B (en) | 2023-08-22 |
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