CN115142689B - Pulling and pressing dual-purpose support release device capable of sliding laterally and release method - Google Patents
Pulling and pressing dual-purpose support release device capable of sliding laterally and release method Download PDFInfo
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- CN115142689B CN115142689B CN202210916323.XA CN202210916323A CN115142689B CN 115142689 B CN115142689 B CN 115142689B CN 202210916323 A CN202210916323 A CN 202210916323A CN 115142689 B CN115142689 B CN 115142689B
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- sliding support
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/14—Conveying or assembling building elements
- E04G21/16—Tools or apparatus
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/36—Bearings or like supports allowing movement
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/14—Conveying or assembling building elements
- E04G21/16—Tools or apparatus
- E04G21/163—Jacks specially adapted for working-up building elements
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- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
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- Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
Abstract
The invention discloses a pulling and pressing dual-purpose support release device capable of sliding laterally and a release method. The counter-force frame is fixed in the bracket side, and the screw thread steel bar passes through anchor nut and adjusting nut and connects counter-force frame and anchor node, is equipped with slip backing plate and roller bearing between counter-force frame and jack, the adjusting nut. The support is in a temporary fixing state before release, the support is released in a jacking or tensioning mode according to the pre-judging sliding direction, and the jack is arranged on the inner side of the reaction frame when the jack is arranged on the outer side of the reaction frame when the jack is arranged on the inner side of the reaction frame. The device can realize the release of the support with large sliding quantity and lateral sliding by adopting two modes of jacking and tensioning, can accurately control the sliding quantity by stepless adjustment, can be locked at any time in the process, can actively move the support to a designated position when necessary, and even can restore to a pre-release state, and has multiple working condition applicability and accurate controllability.
Description
Technical Field
The invention relates to the field of civil engineering, in particular to a pulling and pressing dual-purpose support release device capable of sliding laterally and a release method.
Background
With the rapid development of modern civil engineering structures, such as large span space cable structures, steel structures and the like, finished product supports are widely applied. In order to reduce the horizontal forces of the upper structure on the lower support structure, such as forming a prestressed self-balancing structure in the cable structure, releasing temperature deformations in the large-span structure, etc., sliding supports are often provided between the upper structure and the lower support structure. When the sliding support of the mounting structure is positioned, in order to avoid disturbance of subsequent construction, measures are generally taken to temporarily fix the support, such as temporarily fixing and welding, setting a limit baffle and the like, and then releasing the support to achieve a designed sliding state when a specific time is needed.
The temporarily fixed support may have a counter force due to the build-up of the construction before releasing the support. In the process of releasing the support, the support can slide, the support counterforce gradually decreases, and the structural form is also automatically changed in a coordinated manner, so that the support is released to influence the important construction link of the structural safety. In some engineering, not only the sliding directions of the supports are different, but also the same support can slide reciprocally, and in addition, the sliding in the radial direction and the sliding in the annular direction can also occur, so that a support release device suitable for multiple conditions is needed.
In the existing engineering, modes such as hot melting temporary fixing welding lines or flame cutting baffles are often adopted, so that the support is free to release under the action of counter force, the sliding process under the mode is in an uncontrolled state, the safety is low, the sliding process is difficult to stop immediately once a problem occurs, and the sliding process is more difficult to recover to a pre-sliding state. When the counter force of the support is large, the support can be released by using the jack in engineering, but the support is often released unidirectionally, and the process controllability is low.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a pulling and pressing dual-purpose support release device capable of sliding laterally and a release method thereof, which can realize the release of a support with large sliding quantity and lateral sliding by adopting two modes of jacking and tensioning, can precisely control the sliding quantity of the support through stepless adjustment, can pause at any time in the process, can actively move the support to a designated position when necessary, and even can restore to a state before release, and has multi-working condition applicability, precise controllability and high safety.
In order to solve the technical problems, the invention adopts the following technical scheme:
a pulling and pressing dual-purpose support release device capable of sliding laterally comprises a structural bracket, a reaction frame, a sliding support limiting cushion block, a sliding support, a threaded steel rod, an adjusting nut, an anchoring joint, an anchoring nut, a sliding support top plate and a jack; the sliding support is arranged at the top of the structural bracket, the sliding support top plate is arranged at the top of the sliding support, the length of the top of the sliding support is smaller than that of the sliding support top plate, and the sliding support limiting cushion blocks are symmetrically arranged in a gap formed between the top of the sliding support and the sliding support top plate; the reaction frame is arranged on one side of the structural bracket, a reaction frame long slot hole is formed in the reaction frame, an anchoring node is arranged at one end, close to the reaction frame, of the top plate of the sliding support, an anchoring node end face round hole penetrating through a threaded steel rod is formed in the end face of the anchoring node, the threaded steel rod penetrates through the reaction frame long slot hole, one end of the threaded steel rod is connected with the anchoring node through an anchoring nut, and the other end of the threaded steel rod is connected with the reaction frame through an adjusting nut; the jack is used for balancing the counter force between the top plate of the sliding support and the sliding support.
In a further preferred aspect of the present invention, when it is determined that the slide holder top plate slides in a direction approaching the reaction frame after the release, the jack is provided between the reaction frame and the slide holder top plate.
As a further preferable mode of the invention, the device further comprises a first sliding base plate, a second sliding base plate and a rolling shaft, wherein the first sliding base plate is arranged between the adjusting nut and the counter-force frame, a sliding base plate round hole is formed in the first sliding base plate, a threaded steel rod penetrates through the first sliding base plate, the second sliding base plate is arranged at the joint of the jack and the counter-force frame, limit baffles are arranged on two sides of the first sliding baffle and the second sliding baffle, and the rolling shaft is arranged in the limit baffles.
In a further preferred aspect of the present invention, when it is determined that the slide holder top plate slides in a direction away from the reaction frame after the release, the release is performed by tensioning, and the jack is placed outside the reaction frame.
As a further preferable mode of the invention, the invention further comprises a second anchoring nut, a supporting tube, a third sliding backing plate and a rolling shaft, wherein the second anchoring nut, the jack, the supporting tube, the adjusting nut, the third sliding backing plate and the counterforce frame are sequentially sleeved on the threaded steel rod, both sides of the third sliding backing plate are respectively provided with a limit baffle, and the rolling shaft is arranged in the limit baffle.
As a further preferred aspect of the invention, the anchor nut is arranged inside the anchor node.
As a further preferable mode of the invention, the central axis of the threaded steel rod, the center of the round hole of the end face of the anchoring node and the center of the long slot hole of the reaction frame are on the same straight line.
As a further preferred aspect of the present invention, the adjusting nut is provided at the inner bottom of the stay tube; and a hole is formed in the side surface of the bottom of the supporting cylinder, so that the manual rotation of the adjusting nut is realized.
A jacking release method of a pulling and pressing dual-purpose support release device capable of sliding laterally comprises the following steps: step (1), judging the sliding direction of the released sliding support top plate: when the sliding support top plate slides to the direction close to the reaction frame after the release is judged, the release is carried out in a jacking mode; step (2), an installation structure: firstly, installing a reaction frame on a structural bracket, and installing an anchoring node on a top plate of a sliding support; then, installing a threaded steel rod, an anchoring nut, an adjusting nut, a first sliding backing plate and a rolling shaft, wherein the anchoring nut is arranged at the outer side of an anchoring node, the first sliding backing plate is arranged at the inner side of a reaction frame, and the adjusting nut is supported on the first sliding backing plate; then, a jack for jacking and a second sliding backing plate are arranged between the counter-force frame and the top plate of the sliding support; step (3), pre-tightening: oil is fed into the jack, the cylinder body of the jack extends to a pre-tightening reaction frame and a top plate of the sliding support, and a second sliding base plate is arranged between the reaction frame and the jack; step (4), disassembling a sliding support limiting cushion block: continuously feeding oil into the jack, formally applying a jacking force until a sliding support limiting cushion block under a sliding support top plate is loosened, wherein the jacking force of the jack is balanced with support counter force of temporary fixing of the support; then, removing the sliding support limiting cushion block under the sliding support top plate; step (5), achieving a free state: the jack slowly returns oil, so that the cylinder body of the jack slowly contracts, the adjusting nut synchronously moves towards the top plate direction of the sliding support, the distance between the counter-force frame and the top plate of the sliding support is gradually shortened in the process until the counter-force of the support is completely released, and the sliding support reaches a free state; and (6) removing the support release device.
A tensioning and releasing method of a pulling and pressing dual-purpose support releasing device capable of sliding laterally comprises the following steps: step (1), judging the sliding direction of the released sliding support top plate: when the sliding support top plate slides to a direction far away from the reaction frame after the release is judged, the release is carried out in a tensioning mode; step (2), an installation structure: firstly, installing a reaction frame on a structural bracket, and installing an anchoring node on a top plate of a sliding support; then, installing a threaded steel rod, an anchoring nut, a second anchoring nut, an adjusting nut, a corresponding third sliding backing plate and a corresponding rolling shaft, wherein the anchoring nut is arranged at the inner side of an anchoring node, the third sliding backing plate is arranged at the outer side of a reaction frame, the adjusting nut is supported on the third sliding backing plate, and then, installing a support tube and a jack for tensioning and the corresponding third sliding backing plate at the outer side of the reaction frame; step (3), pre-tightening: the jack is filled with oil, the cylinder body of the jack is extended to a pre-tightening screw steel rod, and a third sliding base plate is arranged between the reaction frame and the jack; step (4), disassembling a sliding support limiting cushion block: then, continuing oil feeding into the jack, formally applying tension force until the limit cushion block of the sliding support under the top plate of the sliding support is loosened, wherein the tension force is balanced with the counterforce of the support temporarily fixed by the support, and removing the limit cushion block of the sliding support under the top plate of the sliding support; step (5), achieving a free state: then, the jack slowly returns oil, so that the cylinder body of the jack slowly contracts, the adjusting nut synchronously moves towards the outer side direction of the reaction frame, the distance between the reaction frame and the top plate of the sliding support is gradually increased in the process until the counter force of the support is completely released, and the support reaches a free state; and (6) removing the support release device.
The invention has the following beneficial effects:
the pulling and pressing dual-purpose support release device and the release method capable of sliding laterally can realize support release with large sliding quantity and lateral sliding by adopting two modes of pushing and pressing and stretching. In a specific engineering, the device is not only suitable for all supports with different sliding directions, but also suitable for the situation of sliding in two directions of radial and annular directions, and is also suitable for the situation of sliding in a reciprocating manner of the same support, so that the device is suitable for various release working conditions. In the releasing process, the jack is slowly retracted and the adjusting nut is rotated, so that the sliding quantity of the support can be accurately controlled through stepless adjustment; when unexpected faults or other emergency situations of the jack occur, the rotation of the adjusting nut is stopped immediately, and the support enters a temporary locking state, so that the device has accurate controllability and high safety. In addition, the oil can be loaded by the jack when necessary, the support can be actively moved to a designated position and even restored to the state before release, so that the device has initiative and restorability.
Drawings
FIG. 1 is a top pressure release elevation view of the seat release apparatus of the present invention;
FIG. 2 is a top plan view of the support release of the present invention;
FIG. 3 is a tension release elevation view of the seat release apparatus of the present invention;
FIG. 4 is a top view of the tension release of the seat release of the present invention;
FIG. 5 is a front view of the reaction frame of the seat release apparatus of the present invention;
FIG. 6 is a top view of the reaction frame of the support release of the present invention;
FIG. 7 is a left side view of the reaction frame of the support release of the present invention;
FIG. 8 is a schematic view of a first or third sliding pad and roller of the threaded steel bar of the present invention;
fig. 9 is a schematic view of a second sliding pad and roller of the present invention without threading a steel rod.
The method comprises the following steps: reaction frame 1, anchor node 2, screw rod 3, anchor nut 4, adjusting nut 5, first slip backing plate 6, roller bearing 7, jack 8, strut section of thick bamboo 9, structure bracket 10, sliding support roof 11, reaction frame slot 12, anchor node's terminal surface round hole 13, sliding support spacing cushion 14, sliding backing plate round hole 15, second sliding backing plate 16, third sliding backing plate 17, 18, sliding support, 19, second anchor nut.
Description of the embodiments
The invention will be described in further detail with reference to the accompanying drawings and specific preferred embodiments.
In the description of the present invention, it should be understood that the terms "left", "right", "upper", "lower", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and "first", "second", etc. do not indicate the importance of the components, and thus are not to be construed as limiting the present invention. The specific dimensions adopted in the present embodiment are only for illustrating the technical solution, and do not limit the protection scope of the present invention.
Examples
As shown in fig. 1-9, a pulling and pressing dual-purpose support release device capable of sliding laterally comprises a structural bracket 10, a reaction frame 1, a sliding support limiting cushion block 14, a sliding support 18, a threaded steel rod 3, an adjusting nut 5, an anchoring node 2, an anchoring nut 4, a sliding support top plate 11 and a jack 8; the sliding support 18 is arranged at the top of the structural bracket 10, the sliding support top plate 11 is arranged at the top of the sliding support 18, the length of the top of the sliding support is smaller than that of the sliding support top plate 11, and the sliding support limiting cushion blocks 14 are symmetrically arranged in gaps formed between the top of the sliding support 18 and the sliding support top plate 11; the reaction frame 1 is arranged on one side of the structural bracket 10, a reaction frame long groove hole 12 is formed in the reaction frame 1, the reaction frame long groove hole 12 is consistent with the lateral sliding direction of the support and is used for the threaded steel rod 3 to pass through and slide in the circumferential direction, an anchoring node 2 is arranged at one end, close to the reaction frame 1, of the sliding support top plate 11, an anchoring node end face round hole 13 penetrating through the end head of the threaded steel rod 3 is formed in the end face of the anchoring node 2, the threaded steel rod 3 penetrates through the reaction frame long groove hole 12, one end of the threaded steel rod 3 is connected with the anchoring node 2 through an anchoring nut 4, the other end of the threaded steel rod 3 is connected with the reaction frame 1 through an adjusting nut 5, and the anchoring nut 4 is arranged outside the anchoring node 2; the jack 8 is used to balance the reaction force between the shoe top plate 11 and the shoe 18.
The center axis of the threaded steel rod 3, the center of the round hole 13 on the end face of the anchoring node and the center of the long slot hole 12 of the reaction frame are on the same straight line. The sliding support is in a temporary fixing state before release, the support is released in a jacking or tensioning mode according to the pre-judging sliding direction, the jack 8 is arranged on the inner side of the reaction frame 1 when the jacking mode is selected, and is arranged on the outer side of the reaction frame 1 when the tensioning mode is selected. The main sliding direction of the sliding support moves radially, and the secondary sliding direction of the sliding support moves annularly.
Examples
In addition to the above feature, when it is determined that the slide holder top plate 11 slides in the direction approaching the reaction frame 1 after release, the jack 8 is provided between the reaction frame 1 and the slide holder top plate 11. The number of the threaded steel rods 3 is two, and the threaded steel rods are symmetrically arranged. The jack 8 is arranged between the two threaded steel rods 3, so that the reaction frame 1 and the sliding support top plate 11 are uniformly stressed.
In order to ensure the lateral sliding in the support release process, a first sliding base plate 6, a second sliding base plate 16 and a rolling shaft 7 are arranged between the counter-force frame 1 and the jack 8 and between the adjusting nut 5, the first sliding base plate 6 is arranged between the adjusting nut 5 and the counter-force frame 1, a sliding base plate round hole 15 is formed in the first sliding base plate 6, a threaded steel rod 3 penetrates through the sliding base plate round hole 15 on the first sliding base plate 6, the second sliding base plate 16 is arranged at the joint of the jack 8 and the counter-force frame 1, limit baffles are arranged on two sides of the first sliding baffle and the second sliding baffle, the rolling shaft 7 is arranged in the limit baffles, and the rolling shaft 7 is ensured to move along with the first sliding base plate 6 and the second sliding base plate 16. The roller 7, the reaction frame 1, the first sliding backing plate 6 and the second sliding backing plate 16 are coated with lubricant, so that friction force is reduced.
In the release process of the sliding support 18, the jack 8 is slowly retracted and the adjusting nut 5 is rotated, so that the stepless release of the support can be realized, and the release amount of the support can be accurately controlled; in addition, when unexpected trouble occurs in the jack 8, the rotation of the adjusting nut 5 is stopped immediately, the support enters a temporary locking state, and safety in the process is guaranteed.
A jacking release method of a pulling and pressing dual-purpose support release device capable of sliding laterally comprises the following steps:
step (1), judging the sliding direction of the released sliding support top plate 11: when it is determined that the slide holder top plate 11 slides in the direction approaching the reaction frame 1 after the release, the release is performed by the pressing method.
Step (2), an installation structure: firstly, a reaction frame 1 is installed on a structural bracket 10, and an anchoring node 2 is installed on a sliding support top plate 11; then, installing a threaded steel rod 3, an anchoring nut 4, an adjusting nut 5, a first sliding backing plate 6 and a rolling shaft 7, wherein the anchoring nut 4 is arranged on the outer side of the anchoring node 2, the first sliding backing plate 6 is arranged on the inner side of the reaction frame 1, and the adjusting nut 5 is supported on the first sliding backing plate 6; then, the jack 8 for pressing and the second slide pad 16 are installed between the reaction frame 1 and the slide mount top plate 11.
Step (3), pre-tightening: and oil is filled into the jack 8, and the cylinder body of the jack 8 extends to the pre-tightening reaction frame 1 and the sliding support top plate 11, wherein a second sliding base plate 16 is arranged between the reaction frame 1 and the jack 8.
Step (4), disassembling the sliding support limiting cushion block 14: continuously feeding oil into the jack 8, formally applying jacking force until the sliding support limiting cushion block 14 below the sliding support top plate 11 is loosened, wherein the jacking force of the jack 8 is balanced with support counter force temporarily fixed by the support; and then, removing the sliding support limiting cushion block under the sliding support top plate.
Step (5), achieving a free state: the jack 8 slowly returns oil, so that the cylinder body of the jack 8 slowly contracts, the adjusting nut 5 synchronously moves towards the direction of the top plate 11 of the sliding support, the distance between the reaction frame 1 and the top plate 11 of the sliding support is gradually shortened in the process until the counter force of the support is completely released, and the sliding support 18 reaches a free state.
And (6) removing the support release device.
Examples
In addition to the features described in embodiment 1, when it is determined that the sliding support top plate 11 slides away from the reaction frame 1 after release, the release is performed by stretching, and then the jack 8 is placed outside the reaction frame 1, that is, the jack 8 is disposed on the side away from the sliding support top plate 11, and the anchor nut 4 is disposed on the inner side of the anchor node 2. The number of the threaded steel rods 3 is two, and the threaded steel rods are symmetrically arranged.
The device further comprises a second anchoring nut 19, a supporting cylinder 9, a third sliding base plate 17 and a rolling shaft 7, wherein the second anchoring nut 19, a jack 8, the supporting cylinder 9, an adjusting nut 5, the third sliding base plate 17 and the counterforce frame 1 are sequentially sleeved on the threaded steel rod 3, limit baffles are arranged on two sides of the third sliding base plate 17, and the rolling shaft 7 is arranged in the limit baffles. The roller 7 is guaranteed to move with the third sliding pad 17. The roller 7, the reaction frame 1 and the third sliding backing plate 17 are coated with lubricant, so that friction force is reduced. The adjusting nut 5 is arranged at the inner bottom of the supporting cylinder 9; the side surface of the bottom of the supporting cylinder 9 is provided with a hole to realize manual rotation of the adjusting nut 5.
In the release process of the sliding support 18, the jack 8 is slowly retracted and the adjusting nut 5 is rotated, so that the stepless release of the support can be realized, and the release amount of the support can be accurately controlled; in addition, when unexpected trouble occurs in the jack 8, the rotation of the adjusting nut 5 is stopped immediately, the support enters a temporary locking state, and safety in the process is guaranteed.
A tensioning and releasing method of a pulling and pressing dual-purpose support releasing device capable of sliding laterally comprises the following steps:
step (1), judging the sliding direction of the released sliding support top plate 11: when the sliding support top plate slides in the direction away from the reaction frame 1 after the release is judged, the release is carried out in a tensioning mode.
Step (2), an installation structure: firstly, a reaction frame 1 is installed on a structural bracket 10, and an anchoring node 2 is installed on a sliding support top plate 11; then, the threaded steel rod 3, the anchor nut 4, the second anchor nut 19, the adjusting nut 5 and the corresponding third sliding pad 17 and roller 7 are installed, wherein the anchor nut 4 is arranged on the inner side of the anchor joint 2, the third sliding pad is arranged on the outer side of the reaction frame 1, the adjusting nut 5 is supported on the third sliding pad, and then the supporting cylinder 9 for tensioning, the jack 8 and the corresponding third sliding pad are installed on the outer side of the reaction frame 1.
Step (3), pre-tightening: and oil is fed into the jack 8, the cylinder body of the jack 8 extends to the pre-tightening threaded steel rod 3, and a third sliding base plate 17 is arranged between the reaction frame 1 and the jack 8.
Step (4), disassembling the sliding support limiting cushion block 14: and then, continuing oil feeding into the jack 8, formally applying tension force until the sliding support limiting cushion block under the sliding support top plate is loosened, wherein the tension force is balanced with support counter force for temporarily fixing the support, and removing the sliding support limiting cushion block under the sliding support top plate.
Step (5), achieving a free state: then, the jack 8 slowly returns oil, so that the cylinder body of the jack 8 slowly contracts, the adjusting nut 5 synchronously moves towards the outer side direction of the reaction frame 1, the distance between the reaction frame 1 and the top plate of the sliding support is gradually increased in the process until the support counter force is completely released, and the support reaches a free state.
And (6) removing the support release device.
The device can realize the release of the support with large sliding quantity and lateral sliding by adopting two modes of jacking and tensioning, can accurately control the sliding quantity by stepless adjustment, can be locked at any time in the process, can actively move the support to a designated position when necessary, and even can restore to a pre-release state, and has multiple working condition applicability, accurate controllability and high safety.
The preferred embodiments of the present invention have been described in detail above, but the present invention is not limited to the specific details of the above embodiments, and various equivalent changes can be made to the technical solution of the present invention within the scope of the technical concept of the present invention, and all the equivalent changes belong to the protection scope of the present invention.
Claims (10)
1. The utility model provides a but dual-purpose support release is pressed in pulling of side direction slip which characterized in that: the device comprises a structural bracket (10), a reaction frame (1), a sliding support limiting cushion block (14), a sliding support (18), a threaded steel rod (3), an adjusting nut (5), an anchoring node (2), an anchoring nut (4), a sliding support top plate (11) and a jack (8);
the sliding support (18) is arranged at the top of the structural bracket (10), the sliding support top plate (11) is arranged at the top of the sliding support (18), the length of the top of the sliding support (18) is smaller than that of the sliding support top plate (11), and the sliding support limit cushion blocks (14) are symmetrically arranged in a gap formed between the top of the sliding support (18) and the sliding support top plate (11);
the reaction frame (1) is arranged on one side of the structural bracket (10), a reaction frame long slot hole (12) is formed in the reaction frame (1), an anchoring node (2) is arranged at one end, close to the reaction frame (1), of the sliding support top plate (11), an anchoring node end face round hole (13) penetrating through the threaded steel rod (3) is formed in the end face of the anchoring node (2), the threaded steel rod (3) penetrates through the reaction frame long slot hole (12), one end of the threaded steel rod (3) is connected with the anchoring node (2) through an anchoring nut (4), and the other end of the threaded steel rod is connected with the reaction frame (1) through an adjusting nut (5);
the jack (8) is used for balancing the counter force between the sliding support top plate (11) and the sliding support (18).
2. The laterally slidable pull-push dual-purpose support release device according to claim 1, wherein: when it is determined that the released slide mount top plate (11) slides in a direction approaching the reaction frame (1), the jack (8) is provided between the reaction frame (1) and the slide mount top plate (11).
3. A laterally slidable dual-purpose support release device for pulling and pressing according to claim 2, wherein: still include first slip backing plate (6), second slip backing plate (16) and roller bearing (7), first slip backing plate (6) set up between adjusting nut (5) and reaction frame (1), set up slip backing plate round hole (15) on first slip backing plate (6), screw rod (3) run through first slip backing plate (6), second slip backing plate (16) set up in the junction of jack (8) and reaction frame (1), the both sides of first slip backing plate and second slip backing plate all are equipped with limit baffle, roller bearing (7) set up in limit baffle.
4. The laterally slidable pull-push dual-purpose support release device according to claim 1, wherein: when the sliding support top plate (11) slides in the direction away from the reaction frame (1) after the release is judged, the release is carried out in a tensioning mode, and the jack (8) is arranged at the outer side of the reaction frame (1).
5. The laterally slidable pulling and pressing dual-purpose support release device according to claim 4, wherein: the novel self-locking device further comprises a second anchoring nut (19), a supporting tube (9), a third sliding base plate (17) and a rolling shaft (7), wherein the second anchoring nut (19), a jack (8), the supporting tube (9), an adjusting nut (5), the third sliding base plate (17) and a counterforce frame (1) are sequentially sleeved on the threaded steel rod (3), limit baffles are arranged on two sides of the third sliding base plate (17), and the rolling shaft (7) is arranged in the limit baffles.
6. The laterally slidable pulling and pressing dual-purpose support release device according to claim 5, wherein: the anchor nut (4) is arranged on the inner side of the anchor node (2).
7. The laterally slidable pull-push dual-purpose support release device according to claim 1, wherein: the center of the central axis of the threaded steel rod (3), the center of the round hole (13) on the end face of the anchoring node and the center of the long slot hole (12) of the reaction frame are on the same straight line.
8. The laterally slidable pulling and pressing dual-purpose support release device according to claim 5, wherein: the adjusting nut (5) is arranged at the inner bottom of the supporting cylinder (9); the side surface of the bottom of the supporting cylinder (9) is provided with a hole to realize manual rotation of the adjusting nut (5).
9. A method of releasing the pressing force of a laterally slidable dual-purpose support release device according to claim 3, comprising the steps of:
step (1), judging the sliding direction of the released sliding support top plate (11): when the sliding support top plate (11) slides to the direction close to the reaction frame (1) after the release is judged, the release is carried out in a jacking mode;
step (2), an installation structure: firstly, a counterforce frame (1) is installed on a structural bracket (10), and an anchoring node (2) is installed on a top plate (11) of a sliding support; then, installing a threaded steel rod (3), an anchor nut (4), an adjusting nut (5), a first sliding base plate (6) and a rolling shaft (7), wherein the anchor nut (4) is arranged at the outer side of an anchor node (2), the first sliding base plate (6) is arranged at the inner side of a reaction frame (1), and the adjusting nut (5) is supported on the first sliding base plate (6); then, a jack (8) for jacking and a second sliding base plate (16) are arranged between the reaction frame (1) and the sliding support top plate (11);
step (3), pre-tightening: oil is filled into the jack (8), and the cylinder body of the jack (8) extends to a pre-tightening reaction frame (1) and a sliding support top plate (11), wherein a second sliding base plate (16) is arranged between the reaction frame (1) and the jack (8);
step (4), disassembling a sliding support limiting cushion block (14): continuously feeding oil into the jack (8), formally applying jacking force until a sliding support limiting cushion block (14) under a sliding support top plate (11) is loosened, wherein the jacking force of the jack (8) is balanced with support counter force of temporary fixing of a support; then, removing the sliding support limiting cushion block under the sliding support top plate;
step (5), achieving a free state: the jack (8) slowly returns oil, so that the cylinder body of the jack (8) slowly contracts, the adjusting nut (5) synchronously moves towards the direction of the top plate (11) of the sliding support, the distance between the counter-force frame (1) and the top plate (11) of the sliding support is gradually shortened in the process until the counter-force of the support is completely released, and the sliding support (18) reaches a free state;
and (6) removing the support release device.
10. A method of tensioning and releasing a laterally slidable dual-purpose support release device according to claim 5, comprising the steps of:
step (1), judging the sliding direction of the released sliding support top plate (11): when the sliding support top plate slides to a direction far away from the reaction frame (1) after the release is judged, the sliding support top plate is released in a tensioning mode;
step (2), an installation structure: firstly, a reaction frame (1) is installed on a structural bracket (10), and an anchoring node (2) is installed on a sliding support top plate (11); then, installing a threaded steel rod (3), an anchor nut (4), a second anchor nut (19), an adjusting nut (5) and a corresponding third sliding base plate (17) and a roller (7), wherein the anchor nut (4) is arranged on the inner side of an anchor node (2), the third sliding base plate is arranged on the outer side of a reaction frame (1), the adjusting nut (5) is supported on the third sliding base plate, and then, installing a support cylinder (9) for tensioning, a jack (8) and a corresponding third sliding base plate on the outer side of the reaction frame (1);
step (3), pre-tightening: oil is fed into the jack (8), the cylinder body of the jack (8) is extended to pre-jack the threaded steel rod (3), and a third sliding base plate (17) is arranged between the counter-force frame (1) and the jack (8);
step (4), disassembling a sliding support limiting cushion block (14): then, continuing oil feeding into the jack (8), formally applying tension until the limit cushion block of the sliding support under the top plate of the sliding support is loosened, wherein the tension is balanced with the support counter force temporarily fixed by the support, and removing the limit cushion block of the sliding support under the top plate of the sliding support;
step (5), achieving a free state: then, the jack (8) slowly returns oil, so that the cylinder body of the jack (8) slowly contracts, the adjusting nut (5) synchronously moves towards the outer side direction of the reaction frame (1), the distance between the reaction frame (1) and the top plate of the sliding support is gradually increased in the process until the support counter force is completely released, and the sliding support (18) reaches a free state;
and (6) removing the support release device.
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| CN115142689A (en) | 2022-10-04 |
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