CN213328686U - Suspender tensioning device - Google Patents
Suspender tensioning device Download PDFInfo
- Publication number
- CN213328686U CN213328686U CN202021663230.3U CN202021663230U CN213328686U CN 213328686 U CN213328686 U CN 213328686U CN 202021663230 U CN202021663230 U CN 202021663230U CN 213328686 U CN213328686 U CN 213328686U
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- tensioning
- reaction frame
- suspender
- pin shaft
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- 230000007246 mechanism Effects 0.000 claims abstract description 22
- 230000000149 penetrating effect Effects 0.000 claims abstract description 8
- 239000000725 suspension Substances 0.000 claims description 15
- 238000010276 construction Methods 0.000 abstract description 7
- 230000009467 reduction Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 6
- 210000005069 ears Anatomy 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
The utility model discloses a suspender tensioning device, relating to the technical field of bridge foundation equipment; the device comprises a reaction frame, a tensioning unit and a pushing mechanism, wherein the reaction frame is arranged on a suspender in a penetrating way and is fixedly connected with the suspender; the tensioning units are positioned on two sides of the reaction frame and penetrate through the reaction frame along the vertical direction respectively; a hanger rod fork lug is arranged at the lower end of the hanger rod, and a first pin shaft penetrates through the hanger rod fork lug along the horizontal direction so as to fixedly connect the hanger rod fork lug with the bridge deck lifting lug; two ends of the first pin shaft are respectively provided with a pin shaft hole used for installing a second pin shaft along the horizontal direction, the bottom ends of the tensioning units at two sides of the reaction frame are respectively sleeved on the second pin shaft correspondingly, and the pushing mechanism is arranged at the top end of the tensioning unit and pushes the reaction frame to stretch the suspender; through implementing this technical scheme to solve current jib tensioning equipment structure complicacy and heavy and cause the inconvenient technical problem of stretch-draw, so that carry out the stretch-draw to the jib, shorten construction period, improve the efficiency of construction, show reduction construction cost.
Description
Technical Field
The utility model relates to a bridge foundation equipment technical field, specifically say, relate to a jib tensioning equipment.
Background
A suspension bridge, also called a suspension bridge, refers to a bridge in which a cable (or a steel chain) suspended from a pylon and anchored on both banks (or both ends of the bridge) is used as a main load-bearing member of an upper structure, and a plurality of suspension rods are suspended from the cable, thereby suspending a bridge body; the arch bridge is a bridge which takes an arch beam as a main bearing structure and hangs down a plurality of suspension rods from the arch beam so as to suspend a bridge body.
The lower fork lug of a suspender in the existing suspension bridge or arch bridge structure is hinged with a bridge body through a hinge piece, an adjusting screw rod capable of adjusting the length of the suspender is arranged above the fork lug on the suspender, a truncated cone-shaped anchor cup with an upward small end is arranged on the upper part of the adjusting screw rod, a straight rod with an equal cross section and extending upwards is arranged on the upper part of the anchor cup, the upper part of the straight rod is connected with a bearing structure of the bridge, the length of the suspender is adjusted through the adjusting screw rod for adjusting the suspender in the using process of the bridge, and the stress of each suspender is balanced. However, in the process of implementing the embodiment of the present invention, the inventor of the present application finds that the boom tensioning device at the present stage has the following defects: the existing suspender tensioning device is heavy, needs to be transferred and installed by means of hoisting equipment, needs more people for installation and consumes more time, and has serious waste in time and economy.
SUMMERY OF THE UTILITY MODEL
To the technical problem, an object of the utility model is to provide a jib tensioning equipment to in carry out the stretch-draw to the jib, shorten construction period, in order to show reduction construction cost.
The utility model adopts the technical scheme as follows:
a boom tensioning device, comprising
The reaction frame is arranged on the suspension rod in a penetrating way and is fixedly connected with the suspension rod;
the tensioning units are positioned on two sides of the reaction frame and penetrate through the reaction frame along the vertical direction respectively;
a hanger rod fork lug is arranged at the lower end of the hanger rod, and a first pin shaft is arranged in the hanger rod fork lug in a penetrating manner along the horizontal direction so as to fixedly connect the hanger rod fork lug with the bridge deck lifting lug; pin shaft holes for mounting second pin shafts are respectively formed in two ends of the first pin shaft along the horizontal direction, and the bottom ends of the tensioning units on two sides of the reaction frame are respectively and correspondingly sleeved on the second pin shafts;
and the pushing mechanism is arranged at the top end of the tensioning unit and pushes the reaction frame to realize tensioning of the suspender.
Optionally, the tensioning unit includes a tensioning screw and a tensioning fork arranged at the bottom end of the tensioning screw, so that the tensioning screw penetrates through the reaction frame and is sleeved on the second pin shaft through the tensioning fork. The structure is simple in design and convenient to install.
Optionally, the tensioning screws located on two sides of the reaction frame respectively penetrate through the reaction frame and extend to the upper side of the reaction frame, the pushing mechanisms are respectively arranged on two sides of the suspender, and the pushing mechanisms are respectively installed at the upper ends of the corresponding tensioning screws and act on the reaction frame. According to the technical scheme, the pushing mechanism is arranged at the upper end of the tensioning screw, the tensioning space is large, and the height of the pushing mechanism is not required, so that the suspender can be conveniently tensioned, and the labor cost is saved.
Optionally, the thrusting mechanisms on the two sides of the suspender are symmetrically arranged around the suspender, so that the thrusting mechanisms can balance acting force on the reaction frame.
Optionally, a nut matched with the pushing mechanism is arranged at the top end of the tensioning screw rod, so that the pushing mechanism is fixedly connected with the reaction frame through the nut at the top end of the tensioning screw rod. So utilize nut locking pushing mechanism, prevent that it from taking place reverse motion at the top pushing reaction frame in-process, structural design is simple, nevertheless utilizes nut locking stable, has better practicality.
Optionally, the top of the tensioning fork lug is provided with an internal thread hole, so that the tensioning screw rod extends into the internal thread hole and is fixedly connected with the tensioning fork lug, the tensioning screw rod is convenient to detach and mount, and the structural connection stability is good.
Optionally, the tensioning device is a jack.
Optionally, the connecting sleeve is sleeved on the suspension rod, and the reaction frame is arranged above the connecting sleeve and abutted against the connecting sleeve, so that the suspension rod is fixedly connected with the reaction frame in a limiting manner, and can move synchronously under the action of the pushing mechanism to stretch the suspension rod.
Optionally, the second pin shafts on both sides of the first pin shaft are respectively provided with a stop structure, so that the tensioning fork lugs are respectively sleeved on the second pin shafts on the corresponding sides and are fixed in a limiting manner, and the stability of connection between the tensioning fork lugs and the second pin shafts is ensured, thereby ensuring the safety of the boom in the tensioning process.
Optionally, the backstop structure includes horizontal bolt, sets up in epaxial annular groove of second round pin and locates the baffle in the stretch-draw fork ear outside to make the lower extreme of baffle can insert in the annular groove, just the baffle passes through horizontal bolt with stretch-draw fork ear fixed connection makes the stretch-draw fork ear with second round pin axle fixed connection.
As described above, the present invention has at least the following advantages:
1. the utility model discloses jib tensioning equipment utilizes jack top to push away the reaction frame to make the jib carry out the stretch-draw, the stretch-draw space is big, satisfies jib tensioning force design requirement.
2. The boom tensioning device of the utility model has the advantages of simple structure, simple operation, convenient tensioning of the boom, fast tensioning progress and improved construction efficiency; and time is saved, and labor cost is reduced.
Drawings
The invention will be described by way of example only and with reference to the accompanying drawings, in which
Fig. 1 is a schematic structural diagram of a boom tensioning device according to an embodiment of the present invention;
fig. 2 is a side view of fig. 1 in accordance with an embodiment of the present invention;
fig. 3 is a partially enlarged view of a portion a in fig. 1.
Description of reference numerals: 1-bridge deck lifting lugs; 2-hanger rod fork ear; 3-a first pin shaft; 4-a second pin shaft; 5, tensioning fork ears; 6-reaction frame; 7-a jack; 8-a nut; 9-stretching the screw rod; 10-a boom; 11-a boom connecting sleeve; 12-a baffle plate; 13-horizontal bolt; 14-annular groove.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings.
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments.
Any feature disclosed in this specification may be replaced by alternative features serving equivalent or similar purposes, unless expressly stated otherwise. That is, unless expressly stated otherwise, each feature is only an example of a generic series of equivalent or similar features.
Example one
This embodiment is substantially as shown in figures 1 and 2: the embodiment provides a suspender tensioning device, which comprises a reaction frame 6, a tensioning unit and a pushing mechanism, wherein the reaction frame 6 is arranged on a suspender 10 in a penetrating way and is fixedly connected with the suspender 10, the tensioning unit is positioned on two sides of the reaction frame 6 and respectively arranged on the reaction frame 6 in a penetrating way along the vertical direction, a suspender fork lug 2 is arranged at the lower end of the suspender 10, a first pin shaft 3 is arranged in the suspender fork lug 2 in a penetrating way along the horizontal direction, and the suspender fork lug 2 is fixedly connected with a bridge deck lifting lug 1 through the design of the first pin shaft 3; two ends of the first pin shaft 3 are respectively provided with a pin shaft hole for mounting the second pin shaft 4 along the horizontal direction, and the bottom ends of the tensioning units at two sides of the reaction frame 6 are respectively sleeved on the second pin shaft 4 correspondingly; the pushing mechanism is installed at the top end of the tensioning unit and pushes the reaction frame 6 to realize tensioning of the suspender 10.
Specifically, the tensioning unit comprises a tensioning screw 9 and a tensioning fork 5 arranged at the bottom end of the tensioning screw 9, so that the tensioning screw 9 penetrates through the reaction frame 6 and is sleeved on the second pin shaft 4 through the tensioning fork 5; the structure has simple design and is convenient to install; in order to facilitate the dismounting and mounting, the top of the tensioning fork ear 5 is provided with an internal thread hole in the embodiment, so that the tensioning screw 9 extends into the internal thread hole to be fixedly connected with the tensioning fork ear 5, the dismounting and mounting are convenient, and the structural connection stability is good.
The tensioning device provided by the embodiment is a jack 7 so as to provide enough jacking acting force; furthermore, the tensioning screws 9 positioned at two sides of the reaction frame 6 respectively penetrate through the reaction frame 6 and extend to the upper part of the reaction frame, two sides of the suspender 10 are respectively provided with a jack 7, and the jacks 7 are respectively arranged at the upper ends of the corresponding tensioning screws 9 and act on the reaction frame 6; in the embodiment, the jack 7 is arranged at the upper end of the tensioning screw rod 9, the tensioning space is large, and the height of the jack 7 is not required, so that the suspender 10 can be tensioned conveniently, and the labor cost is saved.
In order to balance the acting force of the jacks 7 on the two sides of the suspender 10 on the reaction frame 6, in the embodiment, the jacks 7 on the two sides of the suspender 10 are preferably symmetrically arranged about the suspender 10, the top ends of the tensioning screws 9 on the two sides of the suspender 10 are provided with nuts 8 matched with the jacks 7, and the jacks 7 penetrate through the corresponding tensioning screws 9, so that the jacks 7 are fixedly connected with the reaction frame 6 through the nuts 8 at the top ends of the tensioning screws 9; by adopting the structure, the jack 7 is locked by the nut 8, so that the reverse motion of the jack in the process of pushing the reaction frame 6 is prevented, the structural design is simple, the locking by the nut 8 is stable, and the practicability is better.
In addition, a connecting sleeve 11 is sleeved on the suspender 10, and the reaction frame 6 is arranged above the connecting sleeve 11 and is abutted against the connecting sleeve 11, so that the suspender 10 and the reaction frame 6 are in limited fixed connection, and can move synchronously under the action of the jack 7, and the suspender 10 is tensioned; of course, the jack 7 is only the preferred embodiment of the present embodiment, and is not particularly limited thereto, and other pushing mechanisms in the prior art may be selected to act on the reaction frame 6 to stretch the suspension rod 10, which is all within the protection scope of the present invention.
The specific implementation manner of this embodiment is: when the suspender 10 is installed for tensioning, firstly, drilling pin shaft holes at two ends of a first pin shaft 3 in a suspender fork lug 2 so as to respectively fix a second pin shaft 4 in the pin shaft holes at two ends of the first pin shaft 3; then, the tensioning fork lugs 5 at two sides of the suspender 10 are respectively fixedly sleeved on the second pin shafts 4 at two ends, the tensioning screw rods 9 are screwed on the tensioning fork lugs 5, then the reaction frame 6 is installed on the connecting sleeve 11 of the suspender 10, and finally the jack 7 is fixed on the top of the tensioning screw rods 9 extending out of the reaction frame 6 and acts on the reaction frame 6; so, when jack 7 has decurrent thrust to reaction frame 6, because stretch-draw screw 9 bottom is through second round pin axle 4 and first round pin axle 3 fixed connection for 7 decurrent effort of jack drive jib 10 downstream, until the pulling force reaches the design value, realize the stretch-draw of jib 10.
Example two
The second embodiment is substantially the same as the first embodiment, except that: as shown in fig. 1 to fig. 3, as a preferred embodiment, in order to ensure the safety of the suspension rod 10 during the tensioning process, in this embodiment, stop structures are respectively disposed on the second pin shafts 4 at two sides of the first pin shaft 3, so that the tensioning fork ears 5 are respectively sleeved on the second pin shafts 4 at the corresponding sides and are fixed to the corresponding side in a limiting manner, so as to ensure the stability of the connection between the tensioning fork ears 5 and the second pin shafts 4, and further ensure the safety of the suspension rod 10 during the tensioning process.
As shown in fig. 3, the stopping structure provided by this embodiment includes a horizontal bolt 13, an annular groove 14 formed in the second pin 4, and a baffle 12 disposed outside the tension fork 5, so that the lower end of the baffle 12 can be inserted into the annular groove 14, and the baffle 12 is fixedly connected to the tension fork 5 through the horizontal bolt 13, so that the tension fork 5 is fixedly connected to the second pin 4.
In summary, in the boom tensioning device of the present embodiment, the jack 7 is used to push the reaction frame 6, so that the boom 10 is tensioned, the tensioning space is large, and the design requirement of the tensioning force of the boom 10 is met; meanwhile, the boom tensioning device is simple in structure and operation, the boom 10 can be conveniently tensioned, the tensioning progress is fast, and the construction efficiency is improved; and time is saved, and labor cost is reduced.
The above description is only for the preferred embodiment of the present invention, and the present invention is not limited thereto, the protection scope of the present invention is defined by the claims, and all structural changes equivalent to the contents of the description and drawings of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A suspender tensioning device is characterized in that: comprises that
The reaction frame is arranged on the suspension rod in a penetrating way and is fixedly connected with the suspension rod;
the tensioning units are positioned on two sides of the reaction frame and penetrate through the reaction frame along the vertical direction respectively;
a hanger rod fork lug is arranged at the lower end of the hanger rod, and a first pin shaft is arranged in the hanger rod fork lug in a penetrating manner along the horizontal direction so as to fixedly connect the hanger rod fork lug with the bridge deck lifting lug; pin shaft holes for mounting second pin shafts are respectively formed in two ends of the first pin shaft along the horizontal direction, and the bottom ends of the tensioning units on two sides of the reaction frame are respectively and correspondingly sleeved on the second pin shafts;
and the pushing mechanism is arranged at the top end of the tensioning unit and pushes the reaction frame to realize tensioning of the suspender.
2. A boom tensioning device according to claim 1, wherein: the tensioning unit comprises a tensioning screw and a tensioning fork lug arranged at the bottom end of the tensioning screw, so that the tensioning screw penetrates through the reaction frame and is sleeved on the second pin shaft through the tensioning fork lug.
3. A boom tensioning device according to claim 2, characterized in that: the tensioning screws positioned on two sides of the reaction frame respectively penetrate through the reaction frame and extend to the upper part of the reaction frame, the pushing mechanisms are respectively arranged on two sides of the suspender, and the pushing mechanisms are respectively arranged at the upper ends corresponding to the tensioning screws and act on the reaction frame.
4. A boom tensioning device according to claim 3, wherein: the pushing mechanisms on the two sides of the suspender are symmetrically arranged around the suspender.
5. A boom tensioning device according to claim 3, wherein: and the top end of the tensioning screw rod is provided with a nut matched with the pushing mechanism, so that the pushing mechanism is fixedly connected with the reaction frame through the nut at the top end of the tensioning screw rod.
6. A boom tensioning device according to claim 2, characterized in that: and the top of the tensioning fork lug is provided with an internal thread hole, so that the tensioning screw rod extends into the internal thread hole to be fixedly connected with the tensioning fork lug.
7. Boom tensioning arrangement according to any of the claims 1-6, characterized in that: the tensioning device is a jack.
8. A boom tensioning device according to claim 6, wherein: the hanger rod is sleeved with a connecting sleeve, and the reaction frame is arranged above the connecting sleeve and is abutted against the connecting sleeve.
9. A boom tensioning device according to claim 2, characterized in that: and the second pin shafts on two sides of the first pin shaft are respectively provided with a stop structure, so that the tensioning fork lugs are respectively sleeved on the second pin shafts on the corresponding sides and are limited and fixed with the second pin shafts.
10. A boom tensioning device according to claim 9, wherein: the backstop structure includes horizontal bolt, sets up in the epaxial annular groove of second round pin and locates the baffle in the stretch-draw fork ear outside to make the lower extreme of baffle can insert in the annular groove, just the baffle passes through horizontal bolt with stretch-draw fork ear fixed connection makes the stretch-draw fork ear with second round pin axle fixed connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021663230.3U CN213328686U (en) | 2020-08-11 | 2020-08-11 | Suspender tensioning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021663230.3U CN213328686U (en) | 2020-08-11 | 2020-08-11 | Suspender tensioning device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213328686U true CN213328686U (en) | 2021-06-01 |
Family
ID=76095392
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021663230.3U Expired - Fee Related CN213328686U (en) | 2020-08-11 | 2020-08-11 | Suspender tensioning device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213328686U (en) |
-
2020
- 2020-08-11 CN CN202021663230.3U patent/CN213328686U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210601 |
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| CF01 | Termination of patent right due to non-payment of annual fee |