CN111747357A - Guide traction mechanism for rope rail type lifting equipment - Google Patents
Guide traction mechanism for rope rail type lifting equipment Download PDFInfo
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- CN111747357A CN111747357A CN202010684247.5A CN202010684247A CN111747357A CN 111747357 A CN111747357 A CN 111747357A CN 202010684247 A CN202010684247 A CN 202010684247A CN 111747357 A CN111747357 A CN 111747357A
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- rope
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F19/00—Hoisting, lifting, hauling or pushing, not otherwise provided for
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Abstract
A guide traction mechanism for rope rail type lifting equipment comprises a base plate, a hook-shaped guide block, a pressing mechanism and a driving traction wheel, wherein a through hole is formed in the center of the base plate, and the driving traction wheel is arranged at the through hole. And two sides of the driving traction wheel are respectively provided with a pressing mechanism, and the pressing mechanisms on the two sides are in mirror symmetry with respect to the center of the driving traction wheel. Hook-shaped guide blocks are respectively arranged at the outer sides of the two pressing mechanisms. The two hook-shaped guide blocks are mirror-symmetrical about the center of the driving traction wheel. The driving traction wheel consists of two wheel discs with mirror symmetry inner surfaces, and a rope groove is formed between the two wheel discs. The active traction wheel has higher load capacity and efficiency; the posture of the equipment can be kept from deflecting when the equipment runs along the rope, so that the requirement that a plurality of pieces of equipment work in series along the same rope is met; the pressing mechanism can limit the connecting rod to be in a dead point position and not to be changed; the contact and separation process of the mechanism along the rope is ensured to be consistent; the rope is installed conveniently and fast.
Description
Technical Field
The invention belongs to the technical field of special lifting equipment, and particularly relates to a guide traction mechanism for rope rail type lifting equipment.
Background
Rope rail type lifting equipment (also called rope climbing/line robot, climbing robot, rope climbing type elevator and the like in other patents) belongs to special lifting equipment, is mainly applied to personnel and material transportation in narrow, high and outdoor environments, such as rescue climbing and escape, mine rescue, field exploration and rescue and the like of urban high-rise fire, and can reduce corresponding manpower and time consumption.
The prior related art can be basically divided into four categories according to the working principle: hoist-like rope hoist (CN 102530760A); relying on wheel mechanisms for friction lifting with ropes (CN101049898, CN102913579A, CN102188796A, US7513334, US 7261278); bionic mechanisms, such as a gripper mechanism (CN 106564068A); depending on the force of engagement (US 6412602).
Most of the existing rope rail type lifting devices adopt friction wheels in different forms as actuating mechanisms thereof and rely on the friction force between the friction wheels and ropes for lifting. However, the existing friction wheel mechanism generally has the problems of low load capacity, low lifting efficiency, complex structure, large volume and weight, low reliability of a rope disengaging link and the like, and the overall performance of the rope rail type lifting equipment is influenced.
In addition, the prior art is designed mainly based on the use of a single rope rail type hoisting device on a vertically suspended rope, and is not considered enough for the case where a plurality of rope rail type hoisting devices are operated in series on the same rope or the case where the lifting devices are operated on a horizontally or obliquely suspended rope. The existing equipment can change the attitude in the air, reduce the efficiency and even cause danger when operating under the condition.
Taking a patent of 2012 (a patent name of a friction device for rope transmission, patent number: CN102913579A, inventor: li crystal; yuenberyin; xu) as an example of the conventional friction wheel mechanism, the mechanism mainly has the following defects: the load capacity of the driving friction wheel in unit radian is limited, and a certain load capacity can be provided only by winding a rope for multiple circles, so that the volume of the mechanism is increased; the mechanism of friction transmission lifting inevitably leads to the elastic sliding of the rope relative to the friction wheel, thus leading to low efficiency; the overall design of the friction mechanism mainly considers the condition that a single rope rail type lifting device runs along a vertical rope, the ground end is limited only by a pressing wheel depending on spring force, and when a plurality of machines work in series and the rope runs along an inclined or horizontal direction, the tension of the tail end rope is greatly increased, so that the rope is possibly separated from the friction mechanism to cause danger; the rope has poor motion reciprocity at the contact part of the mechanism and has low reliability when running in the reverse direction.
Disclosure of Invention
In view of the problems in the prior art, the present invention provides a guiding and pulling mechanism for a rope rail type lifting device, and provides a guiding and pulling device with high load capacity, high efficiency and small volume, which can be used for a rope rail type lifting device and can meet the requirements of attitude keeping and reliability of a plurality of rope rail type lifting devices when the rope rail type lifting devices work in series on the same rope and the devices run along horizontal and inclined ropes.
In order to achieve the purpose, the invention adopts the following technical scheme:
a guide traction mechanism for rope rail type lifting equipment comprises a base plate, a hook-shaped guide block, a pressing mechanism and a driving traction wheel, wherein the base plate is a base for mounting the driving traction wheel, the hook-shaped guide block and the pressing mechanism.
The center of the substrate is provided with a through hole, and the driving traction wheel is arranged at the position of the through hole.
The pressing mechanism comprises a first pressing mechanism and a second pressing mechanism, and the first pressing mechanism and the second pressing mechanism are respectively arranged on two sides of the driving traction wheel. The first pressing mechanism and the second pressing mechanism are in mirror symmetry with respect to the center of the driving traction wheel.
The hook-shaped guide block comprises a hook-shaped guide block I and a hook-shaped guide block II, and the hook-shaped guide block I and the hook-shaped guide block II are respectively arranged on the outer sides of the pressing mechanism I and the pressing mechanism II. The first hook-shaped guide block and the second hook-shaped guide block are in mirror symmetry with respect to the center of the driving traction wheel.
The substrate is provided with two groups of groove structures, and the shapes of the two groups of grooves are in mirror symmetry with respect to a central plane.
The active traction wheel is composed of two wheel discs with mirror symmetry inner surfaces, and a rope groove is formed between the two wheel discs.
The center position of rim plate is equipped with the hole, the rim plate hole of initiative traction wheel has the keyway structure.
The pressing mechanism is composed of a first hinged shaft, a first connecting rod, a second hinged shaft, a third hinged shaft, a pressing wheel, a second connecting rod, a limiting sliding block and a spring.
One end of the first connecting rod is hinged to the base plate through a first hinge shaft, the other end of the first connecting rod is connected with a second connecting rod through a second hinge shaft, and the other end of the second connecting rod is connected with the pressing wheel through a third hinge shaft.
Furthermore, the first connecting rod and the second connecting rod enter dead point positions when the included angle between the two connecting rods is 180 degrees, and the first connecting rod and the second connecting rod are kept at the dead point positions by the blocking of the limiting sliding block.
Furthermore, one end of the first hook-shaped guide block and the second hook-shaped guide block is provided with a hook-shaped characteristic, and the hook-shaped characteristic is provided with a slope, wherein the slope corresponds to the rope groove angle of the driving traction wheel and is generally smaller than the rope groove angle of the driving traction wheel by 1-2 degrees.
Furthermore, the contact sides of the hook-shaped guide block I and the hook-shaped guide block II with the rope are inner sides, the inner side contour lines are arcs at one ends of the hook parts, the radius of the arcs is generally 1/4-1/2 of the radius of the active traction wheel, and the arcs are tangent to the rope groove of the active traction wheel after installation.
Furthermore, the outer diameter of the pressing wheel is generally 4-8 mm smaller than the arc radius of the tail end of the top of the hook of the inner profile line of the hook-shaped guide block, and fine lines are arranged on the outer surface of the pressing wheel to increase the surface contact force between the pressing wheel and a rope.
Further, the inner side profile of the hook-shaped guide block is provided with a groove structure, and the shape of the inner side groove of the hook-shaped guide block is a semicircle with the diameter of 10 +/-2 mm.
Furthermore, the other end of the inner side contour line of the first hook-shaped guide block and the second hook-shaped guide block is a straight line segment or a curve, the extension line of the tangent line of the straight line or the curve at the other end passes through the circle center of the traction wheel, and the extension lines of the tail ends of the first hook-shaped guide block and the second hook-shaped guide block are on the same straight line.
Furthermore, a plurality of regular rib structures are uniformly arranged on the surfaces of the two wheel discs of the driving traction wheel, the height of each rib is 2-5 mm, the height of each rib can be constant and variable along the radial direction, the number of the ribs is 12-20, and the center lines of the ribs are distributed in a radial shape.
Furthermore, the two wheel discs of the driving traction wheel are connected through a plurality of bolts.
Furthermore, the contour lines on the two sides of the cross section of the convex rib of the wheel disc of the driving traction wheel are involute, and the top end of the cross section of the convex rib is subjected to fillet treatment.
Furthermore, the diameter of the rope groove of the driving traction wheel is generally 30 mm-90 mm.
Further, the outer diameter of the traction wheel is generally 50 mm-120 mm.
Furthermore, the groove on the substrate consists of two sections of straight grooves and one section of arc groove, and the radian of the arc groove of the groove on the substrate is pi/3.
Furthermore, articulated shaft two can follow the recess on the base plate with articulated shaft three terminal and slide, spacing slider can slide in the recess straightway of base plate, and spacing slider can imbed in the circular arc section of base plate recess under the spring action of spring, spacing slider upper surface has the structure that the staff application of force of being convenient for pressed.
Furthermore, threaded holes for installing hooks are reserved at the bottom and one side of the base plate, and the centers of the two threaded holes pass through the center of gravity of the whole rope rail type lifting equipment.
Furthermore, the inner surface of each wheel disc is a conical surface, the cone angle is 15 +/-5 degrees, and the rope groove opening angle of the driving traction wheel formed by the wheel discs is 30 +/-10 degrees.
Further, the number of the bolts is 3-6.
Furthermore, after the integral assembly, the inner side contour lines of the first hook-shaped guide block and the second hook-shaped guide block are straight line segments or curved lines at one ends far away from the hook tops, and extension lines of tangent lines of the straight lines or the curved lines at the tail ends are collinear and pass through the center of the driving traction wheel.
The invention has the beneficial effects that:
(1) the active traction wheel provided by the invention has higher load capacity and efficiency;
(2) the guide mechanism provided by the invention can guide the two ends of the rope to the straight line passing through the symmetric center of the active traction wheel, can ensure that the posture of the equipment can be kept not to be deflected when the equipment runs along the rope, and further meets the requirement that a plurality of pieces of equipment work in series along the same rope;
(3) the pressing mechanism comprises a pressing wheel and a connecting rod mechanism with a dead point position, when the connecting rod is located at the dead point position, the pressing wheel can press a rope, the limiting sliding block is pushed into the arc sliding groove under the action of the spring, and the connecting rod is limited to be located at the dead point position and not to be changed;
(4) the rope groove lines of the driving traction wheel are in mirror symmetry, the guide mechanism is composed of two groups of hook-shaped guide blocks which are completely the same or have completely the same working surface, and the two hook-shaped guide blocks are in mirror symmetry relative to the driving traction wheel after assembly. The distribution ensures that the contact and separation processes of the mechanism and the rope are completely consistent when the mechanism runs in the positive and negative directions of the rope;
(5) the rope of the invention is more convenient and faster to install.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a view showing the pressing mechanism;
FIG. 3 is a schematic view of the positional relationship of the guiding and pulling mechanism, i.e., the direction of the rope;
fig. 4 is a structural schematic diagram of the releasing state of the pressing mechanism.
Reference numerals: 1-base plate, 2-hook-shaped guide block I, 3-hold-down mechanism I, 3-1-articulated shaft I, 3-2-connecting rod I, 3-3-articulated shaft II, 3-4-articulated shaft III, 3-5-hold-down wheel, 3-6-connecting rod II, 3-7-limit slider, 3-8-spring, 4-active traction wheel and 5-hold-down mechanism II and 6-hook-shaped guide block II.
Detailed Description
For the convenience of understanding, the technical scheme of the invention is further described in detail by embodiments with reference to the attached drawings:
as shown in fig. 1-4, a guiding traction mechanism for a rope rail type lifting device comprises a base plate 1, a first hook-shaped guide block 2, a first pressing mechanism 3, a driving traction wheel 4, a second pressing mechanism 5 and a second hook-shaped guide block 6.
The base plate 1 is a base for installing the driving traction wheel 4, the first hook-shaped guide block 2, the second hook-shaped guide block 6, the first pressing mechanism 3 and the second pressing mechanism 5.
The central position of the base plate 1 is provided with a through hole, which is convenient for the assembly and connection of a power or transmission device and the driving traction wheel 4.
The driving traction wheel 4 is arranged at the position of the through hole. The first pressing mechanism 3 and the second pressing mechanism 5 are respectively arranged on two sides of the driving traction wheel 4.
The first hook-shaped guide block 2 and the second hook-shaped guide block 6 are respectively positioned at the outer sides of the first pressing mechanism 3 and the second pressing mechanism 5.
The substrate 1 has two sets of grooves, and the shapes of the two sets of grooves are mirror symmetry with respect to the central plane.
Each group of grooves consists of two sections of straight grooves and one section of arc groove, and the radian of the arc groove of each groove is pi/3.
Threaded holes for installing hooks are reserved in the bottom and the left side of the base plate 1, and the centers of the two threaded holes are all through the center of gravity of the whole rope rail type lifting equipment.
The driving traction wheel 4 consists of two wheel discs with mirror symmetry inner surfaces, the inner surface of a single wheel disc is a conical surface, the cone angle is 15 +/-5 degrees, the angle is 15 degrees in the example, the rope groove opening angle of the formed driving traction wheel is 30 +/-10 degrees, and the angle is 30 degrees in the example.
The diameter of the rope groove of the driving traction wheel 4 is generally 30 mm-90 mm, in this case 35mm, and the outer diameter of the traction wheel is generally 50 mm-120 mm, in this case 72 mm.
The surfaces of the two wheel discs of the driving traction wheel 4 are uniformly provided with a plurality of regular rib structures, the height of the ribs is 2 mm-5 mm, the height of the ribs can be constant and variable along the radial direction, in the embodiment, the height of the ribs is 2.5-3.5 mm, the number of the ribs is 12-20, in the embodiment, 12, and the center lines of the ribs are distributed in a radial shape.
The contour lines on the two sides of the cross section of the convex rib of the wheel disc of the driving traction wheel 4 are involute (simplified version can be isosceles acute angle triangle or isosceles trapezoid), and the top end of the cross section of the convex rib is chamfered.
Two wheel discs of the driving traction wheel 4 are connected through a plurality of bolts, the number of the bolts is 3-6, and the number of the bolts is 4 in the embodiment.
The inner hole of the wheel disc of the driving traction wheel 4 is provided with a key groove structure and is used for being connected with a power transmission device and arranged at the central hole of the substrate 1.
The structures of the first hook-shaped guide block 2 and the second hook-shaped guide block 6 are mirror images about the center of the driving traction wheel.
One end of the first hook-shaped guide block 2 and the second hook-shaped guide block 6 has a hook-shaped characteristic, and after the assembly, one end of the hook part extends into the groove of the driving traction wheel 4, and the part has a slope which corresponds to the angle of the rope groove of the driving traction wheel 4 and is generally smaller than the latter by 1-2 degrees.
The contact sides of the hook-shaped guide blocks I2 and II 6 with the rope are inner sides, the inner side contour lines are arcs at one ends of the hook parts, the radius of the arcs is generally 1/4-1/2 of the radius of the active traction wheel 4, and the arcs are tangent to the rope groove of the active traction wheel 4 after installation.
The inner side profiles of the first hook-shaped guide block 2 and the second hook-shaped guide block 6 are provided with groove structures, and the groove shapes are semicircular with the diameters of 10 +/-2 mm.
The other ends of the inner side contour lines of the first hook-shaped guide block 2 and the second hook-shaped guide block 6 are straight line segments or curves, the extension lines of the tangent lines of the straight lines or the curves of the end lines pass through the circle center of the traction wheel, and the extension lines of the tail ends of the first hook-shaped guide block 2 and the second hook-shaped guide block 6 are on the same straight line.
The first pressing mechanism 3 and the second pressing mechanism 5 are composed of a first hinged shaft 3-1, a first connecting rod 3-2, a second hinged shaft 3-3, a third hinged shaft 3-4, a pressing wheel 3-5, a second connecting rod 3-6, a limiting sliding block 3-7 and a spring 3-8.
The first pressing mechanism 3 and the second pressing mechanism 5 are in mirror symmetry.
One end of the first connecting rod 3-2 is hinged on the base plate 1 through a first hinge shaft 3-1, the other end of the first connecting rod 3-2 is connected with the second connecting rod 3-6 through a second hinge shaft 3-3, and the other end of the second connecting rod 3-6 is connected with the pinch roller 3-5 through a third hinge shaft 3-4.
The outer diameter of the pressing wheel 3-5 is generally 4-8 mm smaller than the radius of the arc at the top end of the hook of the inside contour line of the hook-shaped guide block I2 or the hook-shaped guide block II 6, and fine lines are arranged on the outer surface of the pressing wheel 3-5 to increase the surface contact force between the pressing wheel and a rope.
The ends of the second hinge shaft 3-3 and the third hinge shaft 3-4 can slide along the sliding groove on the base plate 1.
The limiting slide blocks 3-7 can slide in straight line sections of the sliding grooves of the substrate 1, the limiting slide blocks 3-7 can be embedded into arc sections of the sliding grooves of the substrate 1 under the action of elastic force of the springs 3-8, and the upper surfaces of the limiting slide blocks 3-7 are provided with structures convenient for being pressed by force applied by hands.
The first connecting rod 3-2 and the second connecting rod 3-6 enter dead point positions when the included angle of the two connecting rods is 180 degrees, and the first connecting rod 3-2 and the second connecting rod 3-6 are kept at the dead point positions by the stop of the limiting sliding blocks 3-7.
After the integral assembly, the inner side contour lines of the first hook-shaped guide block 2 and the second hook-shaped guide block 6 are straight line segments or curved lines at one end far away from the hook top, and extension lines of tangent lines of the straight lines or the curved lines at the tail ends are collinear and pass through the center of the driving traction wheel 4.
The first and second hold-down mechanisms 3 and 5 together with the first and second hook-shaped guide blocks 2 and 6 ensure that the contact angle (theta in fig. 3) of the rope with the driving sheave 4 is not less than pi in radian, thereby ensuring sufficient contact force to move the load.
The operation process of rope installation: firstly, releasing a first pressing mechanism 3, overcoming the elasticity of springs 3-8, and completely pressing limiting sliding blocks 3-7 into a straight groove of a substrate 1; pushing the 3-3 part of the second hinge shaft to separate the 3-2 part of the first connecting rod and the 3-6 part of the second connecting rod from the dead point position; the second connecting rod 3-6 drives the pinch rollers 3-5 to move along the sliding groove of the base plate 1 to the direction far away from the driving traction wheel 4, so that the space required by rope installation is released.
Similar operation can release the second pressing mechanism 5;
the rope 7 is put into a track consisting of a groove at the inner side of a first hook-shaped guide block 2, a second hook-shaped guide block 6 and a rope groove of the driving traction wheel 4, and the rope 7 is combed to be attached to the track; pushing the second hinge shaft 3-3 to enable the pressing wheel 3-5 to press the rope 7, enabling the first connecting rod 3-2 and the second connecting rod 3-6 to recover to the dead point position, and enabling the limiting slide block 3-7 to be embedded into the arc groove of the substrate 1 under the action of the spring 3-8, so that the first connecting rod 3-2 and the second connecting rod 3-6 are limited to the dead point position;
similar operation can restore the second hold-down mechanism 5.
The mechanism operation process: the driving traction wheel 4 rotates under the driving of a power device or a transmission mechanism, and the rope 7 is occluded and rotates along with the rope by the aid of a special rib structure of a rope groove of the driving traction wheel, so that the rope rail type lifting equipment adopting the driving traction wheel as an actuating mechanism moves along the rope 7. In the operation process, the hook-shaped guide block I2 at the rope inlet end guides the rope 7 to smoothly enter the groove of the driving traction wheel 4, and the hook-shaped guide block II 6 at the rope outlet end smoothly shovels the rope 7 away from the groove of the driving traction wheel 4 and guides the rope 7 to be separated from the rope rail type lifting equipment.
Claims (10)
1. A guiding traction mechanism for rope rail type lifting equipment comprises a base plate, a hook-shaped guide block, a pressing mechanism and a driving traction wheel, wherein a through hole is formed in the center of the base plate, and the driving traction wheel is arranged at the position of the through hole;
the pressing mechanism comprises a first pressing mechanism and a second pressing mechanism, the first pressing mechanism and the second pressing mechanism are respectively arranged on two sides of the driving traction wheel, and the structures of the first pressing mechanism and the second pressing mechanism are in mirror symmetry with respect to the center of the driving traction wheel;
the hook-shaped guide block comprises a first hook-shaped guide block and a second hook-shaped guide block, the first hook-shaped guide block and the second hook-shaped guide block are respectively arranged at the outer sides of the first pressing mechanism and the second pressing mechanism, and the first hook-shaped guide block and the second hook-shaped guide block are in mirror symmetry about the center of the driving traction wheel;
the substrate is provided with two groups of groove structures, and the shapes of the two groups of grooves are in mirror symmetry with respect to a central plane;
the active traction wheel consists of two wheel discs with mirror-symmetrical inner surfaces, a rope groove is formed between the two wheel discs, an inner hole is formed in the center of each wheel disc, and the inner hole of each wheel disc of the active traction wheel is provided with a key groove structure;
the pressing mechanism is composed of a first hinged shaft, a first connecting rod, a second hinged shaft, a third hinged shaft, a pressing wheel, a second connecting rod, a limiting sliding block and a spring, wherein one end of the first connecting rod is hinged to the base plate through the first hinged shaft, the other end of the first connecting rod is connected with the second connecting rod through the second hinged shaft, and the other end of the second connecting rod is connected with the pressing wheel through the third hinged shaft.
2. The guiding traction mechanism for a rope rail lifting apparatus of claim 1, wherein: one end of the first hook-shaped guide block and one end of the second hook-shaped guide block are provided with hook-shaped characteristics, and the hook-shaped characteristics are provided with slopes, and the slopes correspond to the rope groove angles of the driving traction wheel.
3. Guide traction mechanism for a rope rail hoisting device according to claim 2, characterized in that: the contact sides of the first hook-shaped guide block and the second hook-shaped guide block with the rope are inner sides, the inner side outline of the hook-shaped guide block is provided with a groove structure, the groove is in a semicircular shape with the diameter of 10 +/-2 mm, the inner side outline is an arc at one end of the hook part, and the radius of the arc is 1/4-1/2 of the radius of the active traction wheel.
4. Guide traction mechanism for a rope rail hoisting device according to claim 3, characterized in that: the outer diameter of the pressing wheel is 4-8 mm smaller than the radius of an arc at the tail end of the hook top of the inner profile line of the hook-shaped guide block, and fine lines are arranged on the outer surface of the pressing wheel.
5. The guiding traction mechanism for a rope rail lifting apparatus of claim 4, wherein: the other end of the inner side contour line of the first hook-shaped guide block and the other end of the inner side contour line of the second hook-shaped guide block are straight line segments or curves, extension lines of tangent lines of the straight lines or the curves of the two ends pass through the circle center of the traction wheel, and the extension lines of the tail ends of the first hook-shaped guide block and the second hook-shaped guide block are on the same straight line.
6. The guiding traction mechanism for a rope rail lifting apparatus of claim 5, wherein: the surfaces of the two wheel discs of the driving traction wheel are uniformly provided with a plurality of regular rib structures, the height of the rib can be constant and variable along the radial direction, and the center lines of the rib are distributed in a radial shape.
7. The guiding traction mechanism for a rope rail lifting apparatus of claim 6, wherein: and the two wheel discs of the driving traction wheel are connected through a plurality of bolts.
8. Guide and traction mechanism for a rope track hoisting device according to claim 7, characterized in that: the groove on the substrate consists of two sections of straight grooves and one section of arc groove, and the radian of the arc groove of the groove on the substrate is pi/3.
9. The guiding traction mechanism for a rope rail lifting apparatus of claim 8, wherein: threaded holes for installing hooks are reserved at the bottom and one side of the base plate, and the centers of the two threaded holes pass through the center of gravity of the whole rope rail type lifting equipment.
10. The guiding traction mechanism for a rope rail lifting apparatus of claim 9, wherein: the inner surface of each wheel disc is a conical surface, the cone angle is 15 +/-5 degrees, and the rope groove opening angle of the driving traction wheel formed by the wheel discs is 30 +/-10 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010684247.5A CN111747357A (en) | 2020-07-16 | 2020-07-16 | Guide traction mechanism for rope rail type lifting equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010684247.5A CN111747357A (en) | 2020-07-16 | 2020-07-16 | Guide traction mechanism for rope rail type lifting equipment |
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| CN111747357A true CN111747357A (en) | 2020-10-09 |
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| CN202010684247.5A Pending CN111747357A (en) | 2020-07-16 | 2020-07-16 | Guide traction mechanism for rope rail type lifting equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114524380A (en) * | 2022-01-26 | 2022-05-24 | 浙江农林大学 | Rope-traction type hanging rope guiding device |
-
2020
- 2020-07-16 CN CN202010684247.5A patent/CN111747357A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114524380A (en) * | 2022-01-26 | 2022-05-24 | 浙江农林大学 | Rope-traction type hanging rope guiding device |
| CN114524380B (en) * | 2022-01-26 | 2024-04-09 | 浙江农林大学 | Rope traction type object hanging rope guiding device |
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