CN115448194A - Winch dragging device capable of preventing steel wire rope from deflecting - Google Patents
Winch dragging device capable of preventing steel wire rope from deflecting Download PDFInfo
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- CN115448194A CN115448194A CN202211178654.4A CN202211178654A CN115448194A CN 115448194 A CN115448194 A CN 115448194A CN 202211178654 A CN202211178654 A CN 202211178654A CN 115448194 A CN115448194 A CN 115448194A
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- rectangular ring
- wire rope
- sliding body
- roller
- steel wire
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 111
- 239000010959 steel Substances 0.000 title claims abstract description 111
- 238000005096 rolling process Methods 0.000 claims description 14
- 238000004804 winding Methods 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract description 5
- 230000008569 process Effects 0.000 abstract description 5
- 230000006872 improvement Effects 0.000 description 7
- 238000005056 compaction Methods 0.000 description 6
- 230000008859 change Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000003014 reinforcing effect Effects 0.000 description 2
- QNRATNLHPGXHMA-XZHTYLCXSA-N (r)-(6-ethoxyquinolin-4-yl)-[(2s,4s,5r)-5-ethyl-1-azabicyclo[2.2.2]octan-2-yl]methanol;hydrochloride Chemical compound Cl.C([C@H]([C@H](C1)CC)C2)CN1[C@@H]2[C@H](O)C1=CC=NC2=CC=C(OCC)C=C21 QNRATNLHPGXHMA-XZHTYLCXSA-N 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 230000003028 elevating effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
- B66D1/28—Other constructional details
- B66D1/36—Guiding, or otherwise ensuring winding in an orderly manner, of ropes, cables, or chains
- B66D1/38—Guiding, or otherwise ensuring winding in an orderly manner, of ropes, cables, or chains by means of guides movable relative to drum or barrel
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Guides For Winding Or Rewinding, Or Guides For Filamentary Materials (AREA)
Abstract
The invention relates to a winch dragging device capable of preventing a steel wire rope from deflecting, which comprises: the length of the sliding rail is greater than or equal to that of a winch drum, the longitudinal axis of the sliding rail is perpendicular to the movement direction of the towed object and parallel to the rotation central axis of the winch drum, a sliding body capable of moving along the longitudinal axis of the sliding rail is arranged on the sliding rail, and the sliding body is connected with a rope head of a steel wire rope wound by the winch drum. The invention utilizes a slide rail which is vertical to the moving direction of the object to be dragged and the steel wire rope head which moves on the slide rail to ensure that the steel wire rope is always vertical to the winding drum in the dragging process, thereby reducing or even completely eliminating the harmful axial force caused by the inclination of the steel wire rope, eliminating the hidden trouble and creating conditions for unmanned operation.
Description
Technical Field
The invention relates to a winch dragging device capable of preventing a steel wire rope from deflecting, which is a mechanical device and is auxiliary equipment for improving the stress state of the steel wire rope of a winch.
Background
In some industrial scenarios where a winch drags an object to move, such as a chute of an automatic loading station, a compaction drum of the automatic loading station, etc., which are lifted by the winch, a connection position of a winch cable and the object (the chute or the compaction drum) to be dragged (i.e., a fixed point of a cable head on the object to be dragged) is usually fixed, while when a drum of the winch to roll the cable rolls the cable, the cable is naturally arranged on the drum, and since the drum has a certain length in an axial direction, a rolling position of the drum to roll the cable is changed. That is to say, the wire rope head is fixed, and the stress point of the wire rope on the reel is changed, the law of the change of the stress point is along the axial movement of the reel, and due to the axial movement of the stress point, the dragging direction of the wire rope can not be always perpendicular to the rotation axis of the reel in the dragging process. When the object to be towed is far away from the winding drum, the angle of inclination between the towing direction of the steel wire rope and the winding drum is not large, and therefore, the effect is not caused. However, when the object to be towed is very close to the drum (chute or compacting drum is raised), the wire rope may be inclined at a large angle. When the inclination angle is large, the steel wire rope and the dragged object are influenced to a certain extent, firstly, the connection point of the steel wire rope head and the dragged object is easy to generate fatigue failure, so that the steel wire rope is broken, and on the other hand, the reel of the winch and the dragged object are subjected to unnecessary oblique tension due to the inclination of the steel wire rope, and the oblique tension is finally applied to bearings of rotating shafts (a swinging shaft of a chute and a rotating shaft of a compaction roller) of the winch reel and the dragged object to form axial force. In general, the bearings used for the rotating shaft of the towed object can only bear limited axial force, and if the bearings repeatedly bear additional axial force during the operation, the service life of the bearings is affected. In the manual operation period, the problem is not obvious, but in the process of realizing unmanned operation, the integral full-automatic process is influenced by the unobtrusive harmful axial force, so that the problem to be solved is how to avoid the over-inclination of the steel wire rope during rolling so as to overcome the harmful axial force.
Disclosure of Invention
In order to overcome the problems of the prior art, the invention provides a winch dragging device capable of preventing a steel wire rope from deflecting. The device solves the problem of inclination of the steel wire rope by arranging the slide rail and the steel wire rope head capable of moving on the slide rail, avoids harmful axial force generated by inclination of the steel wire rope, eliminates fault hidden danger and creates conditions for unmanned operation.
The purpose of the invention is realized as follows: a winch tow arrangement capable of preventing wire rope deflection, comprising: the length of the sliding rail is greater than or equal to that of a winch drum, the longitudinal axis of the sliding rail is perpendicular to the movement direction of the towed object and parallel to the rotation central axis of the winch drum, a sliding body capable of moving along the longitudinal axis of the sliding rail is arranged on the sliding rail, and the sliding body is connected with a rope head of a steel wire rope wound by the winch drum.
Furthermore, the slide rail is a round steel rod with a round cross section.
Furthermore, the sliding body is a large circular ring surrounding the round steel rod, and a small circular ring fixedly connected with the rope end is sleeved on the large circular ring.
Furthermore, the slider be around the rectangle ring of circle steel pole, the rectangle ring is equipped with one and follows the rolling gyro wheel of circle steel pole, the outer fringe of gyro wheel for with round steel pole matched with semicircle spill, the rectangle ring with the fag end is connected.
Furthermore, the slider be around the rectangle ring of circle steel pole, two symmetrical limits of rectangle ring are equipped with a gyro wheel respectively, two the gyro wheel set up and form the centre gripping to circle steel pole with the position that differs 180 degrees relatively, the outer fringe of gyro wheel for with round steel pole matched with semicircle spill, the rectangle ring with the fag end connect.
Furthermore, the slide rail is a square steel rod with a rectangular cross section.
Furthermore, the sliding body is a rectangular ring surrounding the square steel rod, and the rectangular ring is connected with the rope end.
Furthermore, the sliding body is a rectangular ring surrounding the square steel rod, the rectangular ring is provided with a roller capable of rolling along the square steel rod, the outer edge of the roller is in a linear shape matched with the square steel rod, and the rectangular ring is connected with the rope end.
Furthermore, the sliding body is a rectangular ring surrounding the square steel rod, two symmetrical edges of the rectangular ring are respectively provided with a roller, the two rollers are oppositely arranged at positions with a 180-degree difference and form clamping of the square steel rod, the outer edge of each roller is in a linear shape matched with the square steel rod, and the rectangular ring is connected with the rope head.
Furthermore, a lifting lug is arranged on the rectangular ring, and a small circular ring fixedly connected with the rope end is sleeved in a lifting hole of the lifting lug.
The invention has the advantages and beneficial effects that: the invention utilizes a slide rail which is vertical to the moving direction of the object to be dragged and the steel wire rope head which moves on the slide rail to ensure that the steel wire rope is always vertical to the winding drum in the dragging process, thereby reducing or even completely eliminating the harmful axial force caused by the inclination of the steel wire rope, eliminating the hidden trouble and creating conditions for unmanned operation.
Drawings
The invention is further illustrated by the following examples in conjunction with the drawings.
FIG. 1 is a schematic diagram of a conventional winch drum and towed article relationship;
FIG. 2 is a schematic structural diagram of an apparatus according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a second and third round steel rod and a sliding body according to the second embodiment of the present invention, which is a view along the direction C-C in FIG. 2;
FIG. 4 is a schematic structural view of a round steel rod and a sliding body with a semi-concave round outer edge roller according to the fourth embodiment of the present invention, which is a view along the direction C-C in FIG. 2;
FIG. 5 is a schematic structural view of a round steel rod and a sliding body with two semi-concave round rollers at the outer edge according to the fifth embodiment of the present invention, which is a view from C-C in FIG. 2;
fig. 6 is a schematic structural view of the slide bodies of the square steel bar slide rail and the rectangular ring matched with the slide rail according to the fifth and sixth embodiments of the present invention, which is a view from C-C direction in fig. 2;
FIG. 7 is a schematic view of the eight square steel bar slides and a roller with a linear outer edge according to the embodiment of the present invention, which is a view from C-C in FIG. 2;
fig. 8 is a schematic structural view of a square steel bar slide rail and two rollers with linear outer edges matched with the square steel bar slide rail according to the ninth embodiment of the invention, which is a view along the direction C-C in fig. 2.
Detailed Description
The first embodiment is as follows:
the embodiment is a winch dragging device capable of preventing a steel wire rope from deflecting.
The relationship between a conventional winch drum and the towed article is shown in FIG. 1. In fig. 1, the towed object 1 is usually constrained by some constraints (a swing shaft or a guide rail) and can only move (swing or translate) along the direction of an arrow a, the rope end 201 of the steel wire rope 2 is usually fixed at the middle part of the towed object, the rotation central axis 301 of the winch drum 3 is usually vertical to the moving direction of the towed object, and the position of the winch drum is usually arranged symmetrically with the towed object, namely the axial middle point 302 of the winch drum is opposite to the fixed position of the steel wire rope end of the towed object. When the winch drum rolls the steel wire rope, the acting point 202 of the steel wire rope rolled on the winch drum is constantly changed, and the change rule of the acting point is that the acting point moves in the direction parallel to the rotation central axis of the winch drum. When the acting point of the steel wire rope rolled by the winch drum deviates from the middle point, the steel wire rope inclines to generate a deviation angleαA large angle of departure occurs when the towed object approaches the winch drum and the point of application of force of the wire rope on the winch drum is well at the most deviated position from the midpoint, as shown in fig. 1. It can be seen from the force analysis of the X and Y planes of fig. 1 (the X and Y planes in fig. 1 are schematic projection planes), that the force component Y of the Y axis is the drag force, and the force component X of the X axis is the additional force component formed to the whole structure, especially the support bearing of the drum and the slewing bearing or guide rail of the object to be draggedPressure, which is harmful. The force is roughly calculated as the drag force multiplied by sinα. In the loading station practice of this embodiment, the drag force is typically the sum of the weight of the swing chute and the material in the chute, typically in the tens of tons, or several tons of weight of the compaction drum, and in general this drag force is in the order of at least thousands of kilograms. The component force in the x-axis direction can reach thousands of kilograms, and the pressure on the whole structure and the supporting bearing is not small. Although a relatively extreme condition is shown in fig. 1, it does exist in reality. In reality, the harmful pressure repeatedly occurs, additional pressure is caused to a loading system, including swinging chutes, compaction drums and other facilities, and the failure rate is increased. This embodiment eliminates this detrimental pressure by a simple means.
The device described in this embodiment includes: a sliding rail 4 fixed to the object to be towed, see fig. 2, the length of said sliding raillGreater than or equal to the length of the winch drumLThe longitudinal axis 401 of the slide rail is perpendicular to the moving direction a of the towed object and parallel to the rotation central axis of the winch drum, the slide rail is provided with a sliding body 5 capable of moving along the longitudinal axis of the slide rail, and the sliding body is connected with the rope end of the steel wire rope wound up by the winch drum, as shown in fig. 2.
The sliding rail provided by the embodiment can enable the position of the steel wire rope head on the towed object to slide back and forth instead of being fixed at the midpoint position, and keep a symmetrical position with the acting point on the winding drum, namely, the deviation angle of the steel wire ropeαApproaching zero and trying to avoid deviation angleαAnd the generated component force in the x direction eliminates the potential safety hazard.
The core of the embodiment is a slide rail parallel to the rotation central axis of the winch drum, and the slide rail is arranged at the position of the original fixed wire rope head of the towed object. In an embodiment of the invention, the sliding rail can be fixed on the pivot axis of the compacting drum and parallel to the pivot axis of the compacting drum or in the vicinity of the outlet of the swing chute, or in any case the preferred lifting force point of the swing element. The length of the slide rail is larger than the distance between the two end surfaces of the winch drum, so that the slide rail can be conveniently usedThe wire rope end can slide in this range, as indicated by arrow B in FIG. 2, without producing a deviation angle in the direction of movement of the sliding bodyαAs shown in fig. 2.
The slide rail can be in various forms, for example, the slide rail can be a round steel rod with a round section shape, and the section shape can also be other shapes, such as square, rectangular, rhombic and other square steel rods. The cross-sectional shape is selected mainly considering the strength, cost and other factors, and whether the slider is convenient to restrain is also considered.
The sliding body can adopt various forms, for example, an annular body sleeved on the sliding rail is adopted, the annular body can freely slide on the sliding rail with the circular cross section, so that the position of the steel wire rope head can track the position change of the acting point of the steel wire rope on the winding drum, and the deviation angle of the steel wire rope is reduced or even eliminated. However, because the sliding friction exists between the annular body and the sliding rail, the movement of the annular body has larger sliding resistance, and the function of eliminating the deviation angle of the steel wire rope can be better realized.
The friction force between the sliding body and the sliding rail can be changed into rolling friction, if a pulley is adopted, the outer edge section shape of the pulley is matched with the section shape of the sliding rail to form axial restraint, so that the pulley can roll along the sliding rail, and a rolling bearing is arranged in the pulley to reduce the friction force.
The connection between the wire rope end and the sliding body can achieve better effect if a direct fixed connection mode is adopted, but because of rigid fixed connection, some stress concentration always occurs between the wire rope end and the sliding body due to various reasons, therefore, the connection between the wire rope end and the sliding body is best in a flexible connection mode, for example, two steel rings are adopted for connection, one of the steel rings is fixed on the sliding body, the other steel ring buckled with the steel ring is fixedly connected with the wire rope end, and the two buckled steel rings form flexible connection similar to a chain.
Example two:
the embodiment is an improvement of the first embodiment, and is a refinement of the cross-sectional shape of the slide rail of the first embodiment. The slide rail described in this embodiment is a round steel rod with a circular cross section, as shown in fig. 3, 4, and 5.
The round steel rod with the circular section can adopt the most common rod, the diameter of the round steel rod is checked by strength to be enough to bear the drag force, and the hardness of the round steel rod after surface heat treatment can bear the pressure of the sliding body on the surface. Round tubes can also be used in case the strength is satisfactory.
Example three:
this embodiment is a modification of the above embodiment, and is a refinement of the above embodiment with respect to the sliding body. The sliding body in this embodiment is a large circular ring 501 surrounding a round steel rod, and a small circular ring 502 fixedly connected with the rope end 201 is sleeved on the large circular ring, as shown in fig. 3.
In the embodiment, a small ring is sleeved in a large ring and fixedly connected with a rope head of a steel wire rope for traction, and the small ring is flexibly connected with a buckled lifting lug so as to eliminate stress concentration influencing the strength of the steel wire rope.
The embodiment has the advantages of simple structure, convenient use and maintenance and low cost, but because all the rings are in point contact, the stress state is severer, and pitting corrosion is easy to generate, so the embodiment is better applied to the working condition with smaller stress, such as a compaction roller.
Example four:
the embodiment is an improvement of the second embodiment, and is a refinement of the second embodiment on the sliding body, the sliding body in this embodiment is a rectangular ring 503 surrounding the round steel rod, the rectangular ring is provided with a roller 504 capable of rolling along the round steel rod, the outer edge of the roller is in a semicircular concave shape matched with the round steel rod, and the rectangular ring is connected with the rope end, as shown in fig. 4.
The present embodiment is provided with a roller rolling on the sliding rail, and the roller may be provided with a rolling bearing support (the rolling bearing is not shown in fig. 4). Because the rolling friction force is small, the force application points of the wire rope head and the wire rope on the winch drum can easily reach the balanced position, and the wire rope is prevented from deviating from the angle.
The outer edge of the roller is in a semicircular concave shape, and the axial direction of the roller can be restrained by the sliding rail of the round steel rod, so that the roller can only move along the sliding rail and cannot derail.
The roller is arranged to enable the sliding body to move with smaller resistance during dragging, especially when the dragging force is larger, so that the embodiment is suitable for the working condition with larger dragging force.
Example five:
the embodiment is an improvement of the second embodiment, and is a refinement of the second embodiment about a sliding body, the sliding body described in the present embodiment is a rectangular ring 505 surrounding a round steel rod, two rollers 506 and 507 are symmetrically arranged on the rectangular ring with a 180-degree difference, the two rollers form a clamp for the square steel rod, the outer edge of the roller is in a linear shape matched with the square steel rod, and the rectangular ring is connected with the rope end, as shown in fig. 5.
In some operating modes, for example when pulling the chute, the chute all can have the effect to act on the slide rail from top to bottom, therefore this embodiment sets up a pair of gyro wheel to set up two gyro wheels into 180 degrees, form the centre gripping to the round steel pole, no matter like this wire rope has the effort to that direction, can both make the slider nimble motion on the slide rail.
Example six:
the embodiment is an improvement of the first embodiment, and is a refinement of the cross-sectional shape of the slide rail of the first embodiment. The slide rail described in this embodiment is a square steel rod with a non-circular cross-sectional shape, as shown in fig. 6, 7, and 8.
The rectangular cross section can be in various forms, such as square, rectangular, diamond (square turns 45 degrees) and the like. Shown in figures 6, 7 and 8 are square tracks. The cross section can also be hollow, and under the condition that the strength meets the requirement, a square tube can also be used.
Since the sliding body moves on the sliding rail, in order that the sliding body does not depart from the sliding rail, the sliding rail has a certain constraint on the sliding body, and when the cross-sectional shape of the sliding rail is square or rectangular, a rib 401 (see fig. 7) can be arranged on one side or two opposite sides of the rectangle to constrain the sliding body with the pulley.
Example seven:
this embodiment is an improvement of the sixth embodiment, and is a refinement of the sixth embodiment with respect to the sliding body. The sliding body of this embodiment is a rectangular ring 507 surrounding the square steel bar, and the rectangular ring is connected with the rope end, as shown in fig. 6.
The sliding body of this embodiment is a rectangular ring, and is in line contact with the square steel bar, and although the force state is improved, the frictional resistance is increased. But this simple structure is easy to use, is applicable to the operating mode that the drag force is less.
Example eight:
this embodiment is an improvement of the sixth embodiment, and is a refinement of the sixth embodiment with respect to the sliding body. The slider described in this embodiment is a rectangular ring 508 surrounding the square steel rod, the rectangular ring is provided with a roller 509 capable of rolling along the square steel rod, the outer edge of the roller is linear and matched with the square steel rod, and the rectangular ring is connected with the rope end, as shown in fig. 7.
The contact of circle steel pole and semicircle concave gyro wheel still basically is the point contact, produces the pitting and destroys easily, and the square steel pole that this embodiment described and gyro wheel outer fringe be linear contact, and the contact state is superior to circle steel pole and semicircle concave gyro wheel contact state, can bear bigger load, consequently can use in the elevating system of chute.
Example nine:
this embodiment is an improvement of the sixth embodiment, and is a refinement of the sixth embodiment with respect to the sliding body. The slider described in this embodiment is a rectangular ring 510 around the steel pole, two rollers 500, 512 are symmetrically arranged on the rectangular ring with a 180-degree difference, two rollers form the clamp of the opposite steel pole, the outer edge of the roller is linear with the square steel pole, and the rectangular ring is connected with the rope end.
Because the outer edge linear rollers of the two clamping slide rails can well control the lifting of the towed objects and the like and have strong load bearing capacity, the device can be used in occasions with large loads, such as the lifting of chutes and the like.
Example ten:
this embodiment is a modification of the above embodiment, and is a refinement of the above embodiment regarding the rectangular ring. The rectangular ring of this embodiment is provided with a lifting lug 513, and a small circular ring fixedly connected with the rope end is sleeved in a lifting hole of the lifting lug, as shown in fig. 4-8.
The lifting lug is a part with a lifting hole and a reinforcing edge, and the reinforcing plate can be directly welded with the rectangular frame into a whole or connected with the rectangular frame into a whole through bolts.
Finally, it should be noted that the above only illustrates the technical solution of the present invention, and not by way of limitation, and although the present invention has been described in detail with reference to preferred arrangements, it should be understood by those skilled in the art that modifications and equivalent substitutions can be made to the technical solution of the present invention (such as in the form of a trailer, a winch, a slide and a slider, etc.) without departing from the spirit and scope of the technical solution of the present invention.
Claims (10)
1. A winch towing arrangement capable of preventing wire rope deflection, comprising: the length of the sliding rail is greater than or equal to that of a winch drum, the longitudinal axis of the sliding rail is perpendicular to the movement direction of the towed object and parallel to the rotation central axis of the winch drum, a sliding body capable of moving along the longitudinal axis of the sliding rail is arranged on the sliding rail, and the sliding body is connected with a rope head of a steel wire rope wound by the winch drum.
2. The device of claim 1, wherein the rail is a round steel rod having a circular cross-section.
3. The device as claimed in claim 2, wherein the sliding body is a large ring surrounding the steel rod, and a small ring fixedly connected with the rope end is sleeved on the large ring.
4. The device as claimed in claim 2, wherein the sliding body is a rectangular ring surrounding the round steel rod, the rectangular ring is provided with a roller capable of rolling along the round steel rod, the outer edge of the roller is in a semicircular concave shape matched with the round steel rod, and the rectangular ring is connected with the rope end.
5. The device as claimed in claim 2, wherein the sliding body is a rectangular ring surrounding the round steel rod, two symmetrical edges of the rectangular ring are respectively provided with a roller, the two rollers are oppositely arranged at positions 180 degrees apart and form a clamping for the round steel rod, the outer edge of each roller is in a semicircular concave shape matched with the round steel rod, and the rectangular ring is connected with the rope head.
6. The device of claim 1, wherein the slide rail is a square steel rod having a rectangular cross-sectional shape.
7. The apparatus as claimed in claim 6, wherein the sliding body is a rectangular ring surrounding the square steel bar, the rectangular ring being connected to the rope end.
8. The apparatus as claimed in claim 6, wherein the sliding body is a rectangular ring surrounding the square steel bar, the rectangular ring having a roller capable of rolling along the square steel bar, the outer edge of the roller being in a linear shape matching the square steel bar, the rectangular ring being connected to the rope end.
9. The device as claimed in claim 6, wherein the sliding body is a rectangular ring surrounding the square steel bar, two symmetrical edges of the rectangular ring are respectively provided with a roller, the two rollers are oppositely arranged at positions 180 degrees apart and form a clamp for the square steel bar, the outer edge of each roller is in a linear shape matched with the square steel bar, and the rectangular ring is connected with the rope head.
10. The device according to any one of claims 4 to 9, wherein the rectangular ring is provided with a lifting lug, and a small circular ring fixedly connected with the rope end is sleeved in a lifting hole of the lifting lug.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211178654.4A CN115448194A (en) | 2022-09-27 | 2022-09-27 | Winch dragging device capable of preventing steel wire rope from deflecting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211178654.4A CN115448194A (en) | 2022-09-27 | 2022-09-27 | Winch dragging device capable of preventing steel wire rope from deflecting |
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| CN115448194A true CN115448194A (en) | 2022-12-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211178654.4A Pending CN115448194A (en) | 2022-09-27 | 2022-09-27 | Winch dragging device capable of preventing steel wire rope from deflecting |
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| CN113250504A (en) * | 2021-04-07 | 2021-08-13 | 安徽鸿杰威尔停车设备有限公司 | Traction lifting transmission system for intelligent parking garage and working method thereof |
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2022
- 2022-09-27 CN CN202211178654.4A patent/CN115448194A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2908680Y (en) * | 2006-04-28 | 2007-06-06 | 张谦 | Lifting garage |
| CN102951569A (en) * | 2012-09-03 | 2013-03-06 | 南阳二机石油装备(集团)有限公司 | Automatic rope arrangement control device for roller |
| CN204063907U (en) * | 2014-08-14 | 2014-12-31 | 王海宝 | A kind of rotary kiln body checkout gear |
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