CN109322974B - Tensioning device - Google Patents
Tensioning device Download PDFInfo
- Publication number
- CN109322974B CN109322974B CN201811383827.XA CN201811383827A CN109322974B CN 109322974 B CN109322974 B CN 109322974B CN 201811383827 A CN201811383827 A CN 201811383827A CN 109322974 B CN109322974 B CN 109322974B
- Authority
- CN
- China
- Prior art keywords
- fixing frame
- steel wire
- wire rope
- adjusting unit
- bottom plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 60
- 239000010959 steel Substances 0.000 claims abstract description 60
- 230000000149 penetrating effect Effects 0.000 claims description 10
- 230000001105 regulatory effect Effects 0.000 abstract description 13
- 238000000034 method Methods 0.000 description 13
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000001174 ascending effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16G—BELTS, CABLES, OR ROPES, PREDOMINANTLY USED FOR DRIVING PURPOSES; CHAINS; FITTINGS PREDOMINANTLY USED THEREFOR
- F16G11/00—Means for fastening cables or ropes to one another or to other objects; Caps or sleeves for fixing on cables or ropes
- F16G11/12—Connections or attachments, e.g. turnbuckles, adapted for straining of cables, ropes, or wire
Abstract
The invention relates to the technical field of mechanical equipment, and discloses a tensioning device. The tensioning device includes: a fixing frame (1); the number of the primary adjusting units is at least two, and each primary adjusting unit is penetrated through the fixing frame and fixedly connected with the corresponding steel wire rope (2) so as to be used for adjusting the tension of the steel wire rope; a bottom plate (3); and one end of the secondary adjusting unit is penetrated through the bottom plate, and the other end of the secondary adjusting unit is connected with the fixing frame so as to be used for adjusting the distance between the fixing frame and the bottom plate along the length direction of the steel wire rope. According to the invention, the tightness of the steel wire ropes is regulated by the two-stage regulating units, so that the regulating allowance of the steel wire ropes is larger, and as each steel wire rope is correspondingly provided with the one-stage regulating units, when the number of the steel wire ropes is multiple, the initial lengths of all the steel wire ropes can be regulated to be consistent by the one-stage regulating units, so that the stress balance of all the steel wire ropes is ensured.
Description
Technical Field
The invention relates to the technical field of mechanical equipment, in particular to a tensioning device.
Background
At present, the wire rope tensioning device is generally capable of only performing primary length adjustment, specifically, a closed joint of a wire rope is rotationally connected to a fixing frame, and the purpose of adjusting the tightness of the wire rope is achieved by adjusting the position of the fixing frame.
When the number of the steel wire ropes is two or more, the lengths of all the steel wire ropes can be adjusted in an integral and synchronous way through the structure, so that when the initial lengths of the plurality of steel wire ropes are inconsistent, the initial positions of the tensioning devices are inclined, and the length adjusting units such as screw rods are stressed and unbalanced; the inconsistent elongation of the steel wire rope also further leads to inconsistent length of the steel wire rope in the use process, so that unbalanced load can be aggravated, and the screw rod can be deformed and bent due to unbalanced load.
Disclosure of Invention
The invention aims to solve the problem that unbalanced loading and damage of a device are caused by inconsistent initial lengths of steel wires in the prior art, and provides a tensioning device which can adjust the initial lengths of all the steel wires to be consistent by using a primary adjusting unit so as to ensure that all the steel wires are stressed and balanced.
In order to achieve the above object, the present invention provides a tensioning device including:
a fixing frame;
the number of the primary adjusting units is at least two, and each primary adjusting unit is penetrated through the fixing frame and fixedly connected with the corresponding steel wire rope so as to be used for adjusting the tension of the steel wire rope;
a bottom plate;
and one end of the secondary adjusting unit is arranged on the bottom plate in a penetrating manner, and the other end of the secondary adjusting unit is connected with the fixing frame so as to be used for adjusting the distance between the fixing frame and the bottom plate along the length direction of the steel wire rope.
Preferably, the primary adjusting unit comprises a first screw rod, and the first screw rod penetrates through the fixing frame and is positioned relative to the fixing frame through a first nut.
Preferably, the secondary adjusting unit comprises a second screw rod, one end of the second screw rod penetrates through the bottom plate and is positioned relative to the bottom plate through a second nut, and the other end of the second screw rod is hinged with the fixing frame.
Preferably, the fixing frame comprises two connecting plates which are oppositely arranged in parallel, and a pin shaft which is used for being hinged with the secondary adjusting unit is vertically arranged between the two connecting plates.
Preferably, a rotating shaft is vertically arranged between the two connecting plates, two ends of the rotating shaft are respectively connected with the two connecting plates in a rotating way, a through hole for penetrating the primary adjusting unit is formed in the middle of the rotating shaft, and the center line of the through hole is vertical to the axis of the rotating shaft.
Preferably, the pin shafts are located in the middle of the connecting plate, the number of the rotating shafts is at least two, and at least two rotating shafts are symmetrically arranged on two sides of the pin shafts.
Preferably, the rotating shaft has cambered surfaces and planes alternately arranged in the circumferential direction, and the through holes penetrate through the oppositely arranged planes.
Preferably, the bottom plate includes a plane portion, one end of which is vertically bent to form a mounting portion for penetrating the secondary adjusting unit.
Preferably, the fixing frame is located above the plane portion of the bottom plate.
Preferably, the plane part of the bottom plate is provided with a pulley for guiding the steel wire rope.
According to the technical scheme, the tightness of the steel wire ropes is commonly regulated through the primary regulating units and the secondary regulating units, the regulating allowance of the steel wire ropes is larger through two-stage regulation, and as each steel wire rope is correspondingly provided with the primary regulating units for independently regulating the tightness, when the number of the steel wire ropes is multiple, the primary regulating units can be utilized to regulate the initial lengths of all the steel wire ropes to be consistent, so that the stress balance of all the steel wire ropes is ensured, the problem that the tension device is unbalanced due to the fact that the elongation is different in the use process due to the fact that the initial lengths of the steel wire ropes are inconsistent is solved, and the deformation of the device is effectively prevented.
Drawings
FIG. 1 is a schematic view of a tensioner according to an embodiment of the present invention;
FIG. 2 is a schematic view of the structure of the secondary adjustment unit and the mount of FIG. 1;
FIG. 3 is a front view of FIG. 2;
FIG. 4 is a cross-sectional view taken along the A-A plane in FIG. 3;
fig. 5 is a sectional view taken along the B-B plane in fig. 3.
Description of the reference numerals
1-mount, 2-wire rope, 3-bottom plate, 4-first screw rod, 5-first nut, 6-second screw rod, 7-second nut, 8-connecting plate, 9-round pin axle, 10-axis of rotation, 11-through-hole, 12-montant, 13-pulley.
Detailed Description
The following describes specific embodiments of the present invention in detail with reference to the drawings. It should be understood that the detailed description and specific examples, while indicating and illustrating the invention, are not intended to limit the invention.
In connection with fig. 1, the present invention provides a tensioner comprising:
a fixing frame 1;
the number of the primary adjusting units is at least two, and each primary adjusting unit is penetrated through the fixing frame 1 and fixedly connected with the corresponding steel wire rope 2 so as to be used for adjusting the tension of the steel wire rope 2;
a bottom plate 3;
the second grade adjusting unit, second grade adjusting unit's one end wears to locate bottom plate 3, second grade adjusting unit's the other end connect in mount 1 is used for adjusting between mount 1 with bottom plate 3 is followed wire rope 2 length direction's distance.
Through above-mentioned technical scheme, adopt this device can realize the regulation to many wire rope 2 elasticity, at concrete regulation in-process, at first utilize every the one-level adjusting unit adjusts the rate of tension of its wire rope 2 that corresponds for the initial length of many wire ropes 2 keeps unanimous, later available second grade adjusting unit adjusts between mount 1 with the bottom plate 3 is followed the ascending distance of wire rope 2 length, because all wire ropes 2 all connect in mount 1, through the change the position of mount 1, thereby realized the rate of tension of all wire ropes 2 in step and adjusted.
Therefore, the invention can jointly adjust the tightness of the steel wire ropes through the primary adjusting unit and the secondary adjusting unit, the adjusting allowance of the steel wire ropes is larger through two-stage adjustment, and as each steel wire rope is correspondingly provided with the primary adjusting unit which is used for independently adjusting the tightness of the steel wire ropes, when the number of the steel wire ropes is multiple, the primary adjusting units can be used for adjusting the initial lengths of all the steel wire ropes to be consistent, so that the stress balance of all the steel wire ropes is ensured, the problem that the tension device is unbalanced due to the fact that the elongation rate is different in the use process due to the inconsistent initial lengths of the steel wire ropes is solved, and the deformation of the device is effectively prevented.
The primary adjusting unit and the secondary adjusting unit may have any suitable structure, so long as the distance adjusting function along the length direction of the steel wire rope 2 can be achieved. Specifically, in this embodiment, the primary adjusting unit includes a first screw 4, and the first screw 4 is disposed through the fixing frame 1 and is positioned with respect to the fixing frame 1 by a first nut 5. Therefore, the first nut 5 is rotated to adjust the extension length of the first screw 4 relative to the fixing frame 1, and the first screw 4 is directly fixedly connected with the steel wire rope 2, so that the movement of the first screw 4 can pull the steel wire rope 2 to loosen or tighten the steel wire rope 2, thereby realizing the adjustment of the tightness of the steel wire rope 2. Wherein, the steel wire rope 2 can be fixedly connected to the first screw 4 by winding, welding, etc.
Likewise, the secondary adjusting unit comprises a second screw rod 6, one end of the second screw rod 6 is arranged on the bottom plate 3 in a penetrating manner and is positioned relative to the bottom plate 3 through a second nut 7, and the other end of the second screw rod 6 is hinged with the fixing frame 1.
It can be appreciated that the second nut 7 is rotated to adjust the extension length of the second screw 6 relative to the bottom plate 3, so that the second screw 6 performs displacement movement, and further pulls the fixing frame 1, and as all the steel wire ropes 2 are connected to the fixing frame 1, synchronous tension adjustment of all the steel wire ropes 2 can be achieved. Normally, when the steel wire rope 2 is stressed, the fixing frame 1 and the second screw rod 6 are mutually abutted to realize positioning through the second nut 7 and the bottom plate 3, so that in the use process, the second nut 7 is always abutted to the bottom plate 3 through the traction of the steel wire rope 2 to the fixing frame 1 and the second screw rod 6, and the second screw rod 6 is prevented from axial displacement after adjustment. Of course, to further prevent the second screw rod 6 from being displaced after adjustment, the second screw rod 6 may be limited at the same time on the other side of the bottom plate 3 opposite to the second screw rod 7, that is, a limiting nut is disposed on the second screw rod 6 on the side, and by the combined action of the limiting nut and the second screw rod 7, the second screw rod 6 may be kept in a fixed position even when the wire rope 2 is not stressed.
It should be noted that, will set up the second screw rod 6 with set up to articulated between the mount 1, in order to be in the rate of tension in wire rope 2 adjusts the in-process, make things convenient for the positional deviation of mount 1 in each direction makes it have more flexibility, satisfies the wire rope 2 in the application demand on the different direction atress that can appear in the in-service use. If the second screw rod 6 is fixedly connected with the fixing frame 1, there is no relative movement between the two, and when the steel wire rope 2 receives forces in different directions in the use process, the fixing frame 1 cannot rotate adaptively along with the force application direction, so that the situation that the device is damaged due to overlarge stress received by the fixing frame 1 easily occurs, and normal use cannot be ensured. The fixing frame 1 and the second screw 6 form a hinge axis after being hinged, and in order to facilitate the adjustment process, the second screw 6 is preferably perpendicular to the hinge axis.
Of course, the fixing frame 1 may have any suitable structure, so long as the primary adjusting unit and the secondary adjusting unit can be connected together. Referring to fig. 2-4, in this embodiment, the fixing frame 1 includes two parallel connection plates 8 disposed opposite to each other, and a pin 9 hinged to the second screw 6 is vertically disposed between the two connection plates 8. The second screw rod 6 is provided with a through hole for penetrating through the pin shaft 9, so that the second screw rod 6 can be sleeved on the pin shaft 9 through the through hole to form hinge joint between the second screw rod and the pin shaft, the fixing frame 1 can be rotated adaptively in the process of convenient adjustment, and convenience is brought to the use of the steel wire rope 2. Here, the axial direction of the pin 9 is the above-mentioned hinge axis direction.
In order to further improve flexibility in the use process of the steel wire rope 2 and ensure that the steel wire rope 2 can rotate adaptively in all directions in the use process, in the embodiment, a connection mode suitable for the fixing frame 1 and the primary adjusting unit is provided. Specifically, a rotating shaft 10 is vertically arranged between the two connecting plates 8, two ends of the rotating shaft 10 are respectively connected with the two connecting plates 8 in a rotating way, a through hole 11 for penetrating the primary adjusting unit is formed in the middle of the rotating shaft 10, and the central line of the through hole 11 is vertical to the axis of the rotating shaft 10. Therefore, the rotating shaft 10 can rotate relative to the fixing frame 1, so as to drive the primary adjusting unit and the corresponding steel wire ropes 2 to rotate, so as to adapt to the stress demands in different directions. Further, the axial direction of the rotation shaft 10 is perpendicular to the longitudinal direction of the wire rope 2.
Referring to fig. 5, in this embodiment, the connection manner between the rotation shaft 10 and the connection plate 8 is specifically: the two connecting plates 8 are oppositely provided with mounting holes along the direction perpendicular to the connecting plates 8, and two ends of the rotating shaft 10 are respectively provided with a vertical rod 12 correspondingly penetrating through the mounting holes so that the rotating shaft 10 is in rotating connection with the connecting plates 8. Wherein, in order to ensure structural stability, there is no relative movement between the two connection plates 8, and the two connection plates can be fixed by threaded connection or welding connection parts.
According to the invention, all the steel wire ropes 2 are driven to rotate through the hinging between the fixing frame 1 and the second screw rod 6, so that the adjustment in the initial large direction can be realized in the tightness adjusting process, and meanwhile, each first screw rod 4 is connected with the fixing frame 1 through the rotating shaft 10 in a rotating way, so that the steel wire ropes 2 can be respectively driven to independently adjust in different directions, and therefore, the operation in different directions of the steel wire ropes 2 can be realized, or the different operation requirements can be further met, and the application range of the tensioning device is wider.
It will be appreciated that, in order to satisfy the force balance in the adjustment process, the pin shaft 9 is disposed in the middle of the connecting plate 8, the number of the rotating shafts 10 is at least two, and at least two rotating shafts 10 are symmetrically disposed on two sides of the pin shaft 9. For example, if the number of the rotation shafts 10 is four, two rotation shafts are respectively disposed on each side of the pin shaft 9, and the number of the steel wire ropes 2 is four, which is of course that the specific number can be set according to the needs, and the limitation is not excessive.
To facilitate the rotation of the rotation shaft 10, the rotation shaft has arc surfaces and planes alternately arranged in the circumferential direction to reduce resistance during rotation, so that the direction adjustment is more flexible. In this embodiment, the rotation shaft 10 is circumferentially surrounded by four surfaces, and specifically includes two cambered surfaces and two planes, where the two cambered surfaces are oppositely disposed, the two planes are also oppositely disposed, so as to facilitate punching, and the through hole 11 is disposed through the oppositely disposed planes.
The bottom plate 3 may be provided in any shape, and as one embodiment, the bottom plate 3 includes a plane portion, and one end of the plane portion is vertically bent to form an installation portion for penetrating the secondary adjusting unit, so that the secondary adjusting unit, that is, the second screw 6 in this embodiment, adjusts a distance between the fixing frame 1 and the bottom plate 3 along a length direction of the wire rope, that is, by adjusting a distance between the fixing frame 1 and the installation portion, the fixing frame 1 pulls the wire rope 2, so as to adjust a tension degree of the wire rope 2.
For convenience, the fixing frame 1 is located above the plane portion of the bottom plate 3. It should be noted that, because the second screw 6 is hinged to the fixing frame 1, in order to implement the rotation of the fixing frame 1, the fixing frame 1 is not connected to the bottom plate 3, but is only placed on the bottom plate 3, so as to avoid binding the movement of the fixing frame 1.
In the present embodiment, a pulley 13 for guiding the wire rope 2 is provided on the planar portion of the base plate 3. Here, the pulley 13 may be disposed in any manner, in some embodiments, the pulley 13 may rotate relative to the base plate 3, the wire rope 2 is erected on the pulley 13 so as to guide the wire rope 2, specifically, a pair of brackets may be extendably disposed at the bottom of the base plate 3, a rotation shaft for sleeving the pulley 13 is penetrated through the brackets, and a strip-shaped through hole for extending the top of the pulley 13 is disposed on the base plate 3 so as to facilitate the erection of the wire rope 2; in other embodiments, referring to fig. 1, the pulley 13 has a semicircular structure, and the pulley 13 is directly fixed to the base plate 3, and the pulley 13 has no rotation function and only a fixing and guiding function. Of course, the pulley 13 of the present invention is not limited to the above two arrangements, and may be changed as appropriate on the basis of ensuring the guiding effect.
The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited thereto. Within the scope of the technical idea of the invention, a number of simple variants of the technical solution of the invention are possible, including combinations of individual specific technical features in any suitable way. The various possible combinations of the invention are not described in detail in order to avoid unnecessary repetition. Such simple variations and combinations are likewise to be regarded as being within the scope of the present disclosure.
Claims (6)
1. A tensioner, comprising:
a fixing frame (1);
the number of the primary adjusting units is at least two, and each primary adjusting unit is penetrated through the fixing frame (1) and fixedly connected with the corresponding steel wire rope (2) so as to be used for adjusting the tension of the steel wire rope (2);
the primary adjusting unit comprises a first screw (4), and the first screw (4) penetrates through the fixing frame (1) and is positioned relative to the fixing frame (1) through a first nut (5);
a bottom plate (3);
one end of the secondary adjusting unit is arranged on the bottom plate (3) in a penetrating mode, and the other end of the secondary adjusting unit is connected to the fixing frame (1) and used for adjusting the distance between the fixing frame (1) and the bottom plate (3) along the length direction of the steel wire rope (2); wherein,
the fixing frame (1) comprises two connecting plates (8) which are arranged in parallel and opposite to each other, and a pin shaft (9) which is used for being hinged with the secondary adjusting unit is vertically arranged between the two connecting plates (8);
a rotating shaft (10) is vertically arranged between the two connecting plates (8), two ends of the rotating shaft (10) are respectively connected with the two connecting plates (8) in a rotating way, a through hole (11) for penetrating the primary adjusting unit is formed in the middle of the rotating shaft (10), and the central line of the through hole (11) is vertical to the axis of the rotating shaft (10);
the rotating shaft (10) is provided with cambered surfaces and planes which are alternately arranged along the circumferential direction, and the through holes (11) are penetrated in the planes which are oppositely arranged.
2. Tensioner according to claim 1, characterized in that the secondary adjustment unit comprises a second screw (6), one end of the second screw (6) being threaded through the base plate (3) and being positioned with respect to the base plate (3) by means of a second nut (7), the other end of the second screw (6) forming a hinge with the fixing frame (1).
3. Tensioner according to claim 1, characterized in that the pin (9) is located in the middle of the connection plate (8), the number of the rotation shafts (10) is at least two, and at least two rotation shafts (10) are symmetrically arranged on both sides of the pin (9).
4. A tensioning device according to claim 1, characterized in that the base plate (3) comprises a planar portion, one end of which is bent perpendicularly to form a mounting portion for the threading of the secondary adjustment unit.
5. A tensioning device according to claim 4, characterized in that the fixing frame (1) is located above the planar portion of the base plate (3).
6. A tensioning device according to any one of claims 1-5, characterized in that the planar portion of the base plate (3) is provided with pulleys (13) for guiding the wire rope (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811383827.XA CN109322974B (en) | 2018-11-20 | 2018-11-20 | Tensioning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811383827.XA CN109322974B (en) | 2018-11-20 | 2018-11-20 | Tensioning device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109322974A CN109322974A (en) | 2019-02-12 |
| CN109322974B true CN109322974B (en) | 2024-02-20 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811383827.XA Active CN109322974B (en) | 2018-11-20 | 2018-11-20 | Tensioning device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109322974B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111422738A (en) * | 2020-03-16 | 2020-07-17 | 中铁大桥局第七工程有限公司 | Cable rope anchoring device and using method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60157773U (en) * | 1984-03-30 | 1985-10-21 | 工業技術院長 | lifting equipment |
| JP2001226064A (en) * | 2000-02-17 | 2001-08-21 | Kawasaki Steel Corp | Suspending device |
| JP2003182936A (en) * | 2001-12-21 | 2003-07-03 | Mitsubishi Heavy Ind Ltd | Tensile force adjusting mechanism and method therefor |
| CN206308845U (en) * | 2016-11-25 | 2017-07-07 | 广东坚朗五金制品股份有限公司 | Stretcher |
| CN209054032U (en) * | 2018-11-20 | 2019-07-02 | 中联重科股份有限公司 | Tensioning apparatus |
-
2018
- 2018-11-20 CN CN201811383827.XA patent/CN109322974B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60157773U (en) * | 1984-03-30 | 1985-10-21 | 工業技術院長 | lifting equipment |
| JP2001226064A (en) * | 2000-02-17 | 2001-08-21 | Kawasaki Steel Corp | Suspending device |
| JP2003182936A (en) * | 2001-12-21 | 2003-07-03 | Mitsubishi Heavy Ind Ltd | Tensile force adjusting mechanism and method therefor |
| CN206308845U (en) * | 2016-11-25 | 2017-07-07 | 广东坚朗五金制品股份有限公司 | Stretcher |
| CN209054032U (en) * | 2018-11-20 | 2019-07-02 | 中联重科股份有限公司 | Tensioning apparatus |
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| Publication number | Publication date |
|---|---|
| CN109322974A (en) | 2019-02-12 |
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Effective date of registration: 20201231 Address after: 410010 room 4110, 4th floor, office building, 677 Lugu Avenue, high tech Development Zone, Changsha City, Hunan Province Applicant after: Hunan Zoomlion intelligent aerial work machinery Co.,Ltd. Address before: 410013 No. 361 South silver basin, Changsha, Hunan, Yuelu District Applicant before: Zoomlion Heavy Industry Science and Technology Co.,Ltd. |
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Country or region after: China Address after: 410010 No. 701 Xulong South Road, Xiangjiang New District, Changsha City, Hunan Province Applicant after: Hunan Zoomlion intelligent aerial work machinery Co.,Ltd. Address before: 410010 room 4110, 4th floor, office building, 677 Lugu Avenue, high tech Development Zone, Changsha City, Hunan Province Applicant before: Hunan Zoomlion intelligent aerial work machinery Co.,Ltd. Country or region before: China |
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