Adjustable bidirectional clamping purline and pipeline integrated support for steel structure factory building

Abstract

The invention relates to the technical field of steel structure building components, in particular to an adjustable bi-directional clamping steel structure plant purline and pipeline integrated support which comprises a purline body, a sliding type mounting box, a gear and rack transmission mechanism, a bi-directional clamping box and a pipeline clamping mechanism. A 45-degree inclined plane mechanism is adopted to convert vertical spring force into transverse clamping force, two-way abutting and fixing are formed, an M12 bolt is arranged to adjust the distance between clamping plates, and the pipeline clamping device is suitable for pipelines with the DN ranging from 15 mm to 150 mm. Compared with a traditional welding support, the installation efficiency is improved by 92%, the strength reduction of the purline is controlled to be within 5%, the anti-sliding friction force reaches 205N, the GB50242 standard requirement is met, and the effects that stress concentration of the C-shaped purline body is eliminated, stepless adjustment can be conducted in the length direction of the C-shaped purline body, and the plant layout change requirement is met are achieved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of steel structure building components, in particular to an adjustable two-way clamping steel structure plant purlin pipeline integrated support. BACKGROUND

[0002] At present, the sliding purlin support has three defects: 1. welding reduces the strength of the purlin by 15-20%; 2. poor anti-sliding ability of one-way clamping; and 3. pipeline adaptation requires replacement of the support.

[0003] A purlin support is disclosed in the prior art, which comprises a sliding block formed with a pay-off groove and a fixing bolt. The sliding block is adjusted by sliding along the purlin, and then is secondarily fixed by the fixing bolt. The support is generally clamped in one direction, such as vertically or horizontally. The support is fixed by the friction force between the fixing bolt and the purlin, and has weak anti-sliding ability. After long-term use, the support may slide due to factors such as vibration of the steel structure and expansion of the purlin, thereby affecting the safety in use. SUMMARY

[0004] In order to reduce the possibility of position slippage of the support after being fixed due to external factors, the application provides an adjustable two-way clamping steel structure plant purlin pipeline integrated support.

[0005] The application provides an adjustable two-way clamping steel structure plant purlin pipeline integrated support, which adopts the following technical scheme: An adjustable two-way clamping steel structure plant purlin pipeline integrated support comprises: A C-shaped purlin body, the web height of the C-shaped purlin body is 300 mm, the flange width is 80 mm, the edge curl is 20 mm, and the thickness is 3 mm; A mounting box, a pipeline clamping unit is connected to the mounting box, and a pipeline cavity for the pipeline to pass through is formed on one side of the mounting box; Two clamping boxes located on opposite sides of the mounting box, a first clamping block is slidably connected to the side of the clamping box away from the mounting box, two second clamping blocks are slidably connected to the clamping box, and a spring with an elastic coefficient of 1.2 N / mm is arranged between the clamping box and the first clamping block and the second clamping block to realize resistance amplification through a 45° inclined surface structure; An inclined surface pressing unit for moving the two clamping boxes away from or towards each other, the inclined surface pressing unit is connected with the mounting box, and the inclined surface pressing unit is connected with the clamping box; When the first clamping block is in abutment with the C-shaped purlin body and moves towards one side of the mounting box, the 45° inclined surface structure (first transmission wedge and second transmission wedge) is used to convert the vertical spring force into horizontal clamping force, so that the first clamping block (vertically) and the second clamping block (horizontally) are synchronously pressed in two directions.

[0006] By adopting the technical scheme, the installation box is put into the C-shaped inner cavity of the C-shaped purlin body, then the distance between the two clamping boxes is increased by the inclined surface pressing unit, the clamping box moves towards the side away from the installation box and drives the first clamping block and the second clamping block to move, until the first clamping block abuts against the inner wall of the flange plate of the C-shaped purlin body, and as the inclined surface pressing unit continues to work, the distance between the first clamping block and the installation box is reduced, the first clamping block drives the distance between the two second clamping blocks to increase, so that the second clamping block abuts against the inner wall of the C-shaped purlin body, until the first clamping block and the second clamping block abut against and fix the C-shaped purlin body, the bracket body is installed, and then the pipeline clamping unit is used to clamp and fix the pipeline. The adjustable two-way clamping steel structure plant purlin integrated bracket structure is designed, the installation box can be used as the installation base of the pipeline clamping unit and the inclined surface pressing unit, the pipeline clamping unit can be used to clamp and fix the pipeline, the clamping box can be used as the installation base of the first clamping block and the second clamping block, and the first clamping block and the second clamping block can be used to realize two-way clamping with the C-shaped purlin body, so as to improve the position stability of the whole bracket after the whole bracket is installed, reduce the possibility of position slippage of the bracket after being fixed due to external factors, drive the two installation boxes to move relatively or oppositely through the inclined surface pressing unit, and then realize the fixing or releasing between the bracket and the C-shaped purlin body, so as to facilitate the position fixing or position adjustment of the whole bracket, replace the traditional welding / drilling, eliminate the stress concentration of the C-shaped purlin body, and steplessly adjust along the length direction of the C-shaped purlin body, thereby adapting to the plant layout change requirement.

[0007] In one specific implementation scheme, a first transmission wedge block is connected to the first clamping block, and a second transmission wedge block is connected to the second clamping block, and the first transmission wedge block and the second transmission wedge block are in sliding fit; The inclined angle of the first transmission wedge block and the second transmission wedge block is 45°.

[0008] By adopting the technical scheme, the first transmission wedge block and the second transmission wedge block are designed, which can convert the sliding of the first clamping block into the sliding of the second clamping block, so as to gradually realize the abutment between the two second clamping blocks and the C-shaped purlin body after the first clamping block abuts against the C-shaped purlin body, and then realize the two-way abutment and fixing with the C-shaped purlin body in the horizontal and vertical directions, and the first transmission wedge block and the second transmission wedge block can also convert the elastic force between the first clamping block and the clamping box into the abutting force between the second clamping block and the C-shaped purlin body, so that the total normal pressure reaches 4800N.

[0009] In one specific implementation, the first clamping block and the second clamping block are each slidably connected with a transmission frame through a spring with a coefficient of 0.8 N / mm, and the transmission frame is rotatably connected with a roller.

[0010] By adopting the above technical solution, the transmission frame and the roller are designed to cooperate to facilitate the smoothness of movement when the support overall needs to move along the long side direction of the C-shaped purlin body.

[0011] In one specific implementation, the inclined surface pressing unit comprises: a transmission shaft rotatably connected with the mounting box; two transmission racks located between the transmission shaft, the transmission shaft and the tooth groove section of the transmission shaft extending into the inner cavity of the mounting box are engaged, the light rod section of the transmission rack is slidably connected with the mounting box, and one end of the light rod section of the transmission rack is connected with the clamping box; a limiting mechanism for controlling the rotation direction of the transmission shaft, the limiting mechanism is connected with the mounting box, and the limiting mechanism is connected with the transmission shaft; wherein the transmission ratio of the transmission shaft and the transmission rack is 1:2.

[0012] By adopting the above technical solution, the inclined surface pressing unit is designed to realize the synchronous movement of the two transmission racks towards or away from each other through the transmission shaft, and the rotation of the transmission shaft is converted into the movement of the transmission rack along a straight line to drive the movement of the clamping box.

[0013] In one specific implementation, the limiting mechanism comprises: a ratchet gear ring coaxially sleeved on the transmission shaft; a ratchet block rotatably connected to the mounting box through a spring with a coefficient of 0.5 N / mm, and the ratchet block can extend into the tooth groove of the ratchet gear ring; a lifting rod slidably connected with the mounting box, and one end of the lifting rod extends into the mounting box and is movably connected with the ratchet block; wherein the one-way locking accuracy of the ratchet gear ring and the ratchet block is ≤0.1 mm coaxiality.

[0014] By adopting the above technical solution, the limiting mechanism is designed to realize the one-way rotation of the transmission shaft through the cooperation of the ratchet gear ring and the ratchet block, and the ratchet block can be separated from the tooth groove of the ratchet gear ring through the lifting rod, thereby releasing the reverse rotation restriction of the transmission shaft, and realizing the release between the first clamping block and the second clamping block and the inner side wall of the C-shaped purlin body, so as to realize the position movement of the support overall along the long side direction of the C-shaped purlin body.

[0015] In one specific implementation, the pipeline clamping unit comprises: Two mounting plates connected with the mounting box, and a mounting space is left between the two mounting plates, and the operating end of the inclined pressing unit is in the mounting space; Two arc-shaped clamping plates, the openings of the two arc-shaped clamping plates are oppositely arranged and form a pipeline cavity, and the two arc-shaped clamping plates are respectively connected with the two mounting plates.

[0016] In one specific implementation, at least one guide rod is connected to the arc-shaped clamping plate, the arc-shaped clamping plate moves relative to the mounting plate through the guide rod, and a clamping bolt (34) is threadedly connected to the mounting plate, one end of the clamping bolt (34) is rotatably connected with the arc-shaped clamping plate, and the two arc-shaped clamping plates are adapted to DN15mm to DN150mm pipelines. Wherein, the sliding gap between the guide rod and the mounting plate is ≤1.5mm, the clamping bolt (34) is an M12 bolt, and can realize 15mm to 150mm continuous adjustment.

[0017] By adopting the above technical scheme, the guide rod can adjust the distance between the two arc-shaped clamping plates, thereby forming a pipeline cavity of different sizes, and further realizing the fixed installation of pipelines of different sizes.

[0018] In one specific implementation, a force applying rod is perpendicularly connected to the end of the clamping bolt away from the arc-shaped clamping plate.

[0019] By adopting the above technical scheme, the force applying rod facilitates the operator to apply force to the clamping bolt to adjust the distance between the two arc-shaped clamping plates.

[0020] In one specific implementation, a connecting plate is connected to the outer circular side of the arc-shaped clamping plate, a plurality of support strips are connected between the connecting plate and the arc-shaped clamping plate, and the arc-shaped clamping plate is connected with the clamping bolt and the guide rod through the connecting plate.

[0021] By adopting the above technical scheme, the connecting plate can cooperate with the support strips to improve the shape stability of the arc-shaped clamping plate, thereby reducing the possibility of deformation of the arc-shaped clamping plate due to excessive force during clamping the pipeline.

[0022] In one specific implementation, an inclined support plate is connected between the mounting plate and the mounting box.

[0023] By adopting the above technical scheme, the inclined support plate can improve the connection stability between the mounting box and the mounting plate.

[0024] In summary, the present application includes at least one of the following beneficial technical effects: 1. The adjustable double-direction clamping steel structure plant purlin pipeline integrated support is designed. Through the installation box, the installation basis of the pipeline clamping unit and the inclined surface pressing unit can be provided. Through the pipeline clamping unit, the clamping and fixing of the pipeline can be realized. Through the clamping box, the installation basis of the first clamping block and the second clamping block can be provided. Through the cooperation of the first clamping block and the second clamping block, the double-direction clamping between the support and the C-shaped purlin body can be realized. After the overall installation of the support is completed, the position stability of the overall position is improved, the possibility of position slippage of the support after being fixed due to external factors is reduced, the inclined surface pressing unit can drive the two installation boxes to move relatively or oppositely, and the fixing or release between the support and the C-shaped purlin body is realized, so that the position fixing or position adjustment of the overall position of the support is facilitated, the traditional welding / drilling is replaced, the stress concentration of the C-shaped purlin body is eliminated, and stepless adjustment along the length direction of the C-shaped purlin body is realized, so as to adapt to the layout change requirement of the plant.

[0025] 2. The adjustable double-direction clamping steel structure plant purlin pipeline integrated support is designed. Through the first transmission wedge and the second transmission wedge, the sliding of the first clamping block can be converted into the sliding of the second clamping block, so that the abutment of the two second clamping blocks with the C-shaped purlin body is realized after the abutment of the first clamping block with the C-shaped purlin body, and the double-direction abutment and fixing with the C-shaped purlin body in the horizontal and vertical directions are realized. In addition, the first transmission wedge and the second transmission wedge can also convert the elastic force between the first clamping block and the clamping box into the abutting force between the second clamping block and the C-shaped purlin body.

[0026] 3. The adjustable double-direction clamping steel structure plant purlin pipeline integrated support is designed. Through the cooperation of the ratchet gear ring and the ratchet block, the one-way rotation limitation of the transmission shaft can be realized. Through the lifting rod, the ratchet block can be separated from the tooth groove of the ratchet gear ring, and the reverse rotation limitation of the transmission shaft is released, so that the release between the first clamping block, the second clamping block and the inner side wall of the C-shaped purlin body is realized, and the position movement of the overall support along the long side direction of the C-shaped purlin body is realized. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 is a structural schematic diagram of the adjustable double-direction clamping steel structure plant purlin pipeline integrated support of the embodiment of the present application.

[0028] Figure 2 is a side view of Figure 1 .

[0029] Figure 3 is an internal structure sectional view of the clamping box in Figure 2 .

[0030] Figure 4 isFigure 2 is a sectional view of the internal structure of the mounting box in

[0031] Figure 5 is Figure 4 is a schematic view of the specific structure of the limiting mechanism in

[0032] Figure 6 is Figure 2 is a schematic view of the three-dimensional structure of

[0033] Mark explanation: 1, C purlin body; 2, mounting box; 3, pipeline clamping unit; 31, mounting plate; 32, arc clamping plate; 33, guide rod; 34, clamping bolt; 35, force rod; 36, connecting plate; 37, inclined bracing plate; 4, clamping box; 5, first clamping block; 51, first transmission wedge; 6, second clamping block; 61, second transmission wedge; 7, inclined surface pressing unit; 71, transmission shaft; 72, transmission rack; 73, limiting mechanism; 731, ratchet gear ring; 732, ratchet block; 733, lifting rod; 8, transmission frame; 9, roller. DETAILED DESCRIPTION

[0034] The following will be combined with the Figures 1-6 The application is further described in detail.

[0035] The embodiment of the application discloses a steel structure plant purlin pipeline integrated support capable of adjustable bidirectional clamping.

[0036] Referring to Figure 1 , a steel structure plant purlin pipeline integrated support capable of adjustable bidirectional clamping includes a C-shaped purlin body 1, a mounting box 2, a pipeline clamping unit 3 and a fixing module, the C-shaped purlin body 1 includes an integral web, flange and hem, the cross-sectional shape of the C-shaped purlin body 1 is arranged in a C shape, the web height of the C-shaped purlin body 1 is 300 mm, the flange width is 80 mm, the hem is 20 mm, and the thickness is 3 mm, the mounting box 2 can be in the inner cavity of the C-shaped purlin body 1, and the sliding fit gap between the mounting box 2 and the C-shaped purlin body 1 is 1-2 mm, the outer dimensions of the mounting box 2 are 30 mm*70 mm*60 mm, Q235B steel is rolled, and the pipeline clamping unit 3 is connected to the side, away from the web, of the mounting box 2, a pipeline cavity for the pipeline to pass through is formed on one side of the mounting box 2, the fixing module is connected with the mounting box 2, and the fixing between the mounting box 2 and the C-shaped purlin body 1 is realized through the fixing module.

[0037] Referring to Figure 2 and Figure 3Specifically, the fixing module includes two clamping boxes 4, the two clamping boxes 4 are respectively located at opposite sides of the mounting box 2, and the clamping boxes 4 are arranged close to the flanges, a first clamping block 5 is slidably connected to a side of the clamping box 4 away from the mounting box 2, and two second clamping blocks 6 are slidably connected to the clamping box 4, the two second clamping blocks 6 are respectively arranged close to the web and the hem, and springs are arranged between the clamping box 4 and the first clamping block 5 and the second clamping block 6; in this application, in order to facilitate the distinction, the first clamping block 5 and the clamping box 4 are connected by a first spring, and the clamping box 4 and the second clamping block 6 are connected by a second spring, the first spring and the second spring are both cylindrical helical compression springs (material 65Mn, wire diameter 8mm, free length 50mm, elastic coefficient 1.2N / mm), and the initial pre-tightening force is 50N.

[0038] With reference to Figure 2 and Figure 3 Further, the fixing module further includes a bevel pressing unit 7, the bevel pressing unit 7 is connected with the mounting box 2, and the bevel pressing unit 7 is connected with the clamping box 4, and is used for relatively moving or moving towards the two clamping boxes 4, wherein the first clamping block 5 abuts against the flange and moves towards one side of the mounting box 2, that is, when the distance between the first clamping block 5 and the mounting box 2 decreases, the first clamping block 5 will drive the two second clamping blocks 6 to move away from each other.

[0039] With reference to Figure 3 Specifically, the first clamping block 5 is welded and fixed with a first transmission wedge 51, and the second clamping block 6 is welded with a second transmission wedge 61, and the first transmission wedge 51 and the second transmission wedge 61 are slidably matched; through the first transmission wedge 51 and the second transmission wedge 61, the sliding of the first clamping block 5 can be converted into the sliding of the second clamping block 6, so that the abutment of the two second clamping blocks 6 with the C-shaped purlin body 1 is gradually realized after the abutment of the first clamping block 5 with the C-shaped purlin body 1, thereby realizing the bidirectional abutment and fixation with the C-shaped purlin body 1 in the horizontal and vertical directions, and the first transmission wedge 51 and the second transmission wedge 61 can also convert the elastic force between the first clamping block 5 and the clamping box 4 into the abutting force between the second clamping block 6 and the C-shaped purlin body 1, wherein the bevel angles of the first transmission wedge 51 and the second transmission wedge 61 are both 45°.

[0040] With reference to Figure 3 Specifically, the first spring applies a spring force to the first clamping block 5, and the cooperation of the first transmission wedge 51 and the second transmission wedge 61 can amplify the spring force applied by the first spring to the first clamping block 5 and then act on the second clamping block 6, assuming that the bevel angle of the first transmission wedge 51 is 5 degrees, then the amplification multiple M of the force is 1 / tan5≈11.4 times.

[0041] With reference to Figure 3Further, when the support needs to be slid along the long direction of the C-shaped purlin body 1 to change the position of the support, in order to reduce the frictional resistance between the C-shaped purlin body 1 and the first clamping block 5 and the second clamping block 6, the outer side of the first clamping block 5 and the second clamping block 6 is slidably connected with a transmission frame 8 through a spring, and the transmission frame 8 is rotatably connected with a roller 9, and the roller 9 can be rollingly connected with the inner side of the C-shaped purlin body 1; in this application, in order to facilitate the distinction, the spring between the first clamping block 5 / second clamping block 6 and the transmission frame 8 is a third spring, which is a small compression spring (elastic coefficient 0.8N / mm), the rolling friction between the roller 9 and the C-shaped purlin body 1 is ≤10N, and the light sliding of the installation box 2 is realized.

[0042] With reference to Figure 4 , specifically, the inclined surface pressing unit 7 includes a transmission shaft 71, a transmission rack 72, and a limiting mechanism 73, the transmission shaft 71 is rotatably connected with the installation box 2 through a bearing, and the axial direction of the transmission shaft 71 is perpendicular to the web plate, the number of the transmission rack 72 is two, the transmission shaft 71 extends into the two transmission racks 72, and the transmission rack 72 is engaged with the tooth groove section of the transmission shaft 71 extending into the inner cavity of the installation box 2, the transmission ratio of the transmission shaft 71 and the transmission rack 72 is 1:2, the light rod section of the transmission rack 72 is slidably connected with the installation box 2, and one end of the light rod section of the transmission rack 72 extends out of the installation box 2 and is welded and fixed with the clamping box 4; in this application, the transmission shaft 71 can be manually driven, or can be driven by a gas, such as a miniature pneumatic motor, or can be driven by an electric motor.

[0043] With reference to Figure 4 and Figure 5The limiting mechanism 73 is connected with the mounting box 2, and the limiting mechanism 73 is connected with the transmission shaft 71. In the application, the limiting mechanism 73 can be a buckle type locking structure or a ratchet and pawl structure. Specifically, in the embodiment, the limiting mechanism 73 comprises a ratchet gear ring 731, a ratchet block 732 and a lifting rod 733. The mounting box 2 is provided with a clamping portion outwardly protruding. The ratchet gear ring 731 is coaxially sleeved on the transmission shaft 71, and the ratchet gear ring 731 is located in the inner cavity of the clamping portion. The ratchet block 732 is rotatably connected with the inner cavity of the clamping portion, and a spring is connected between the ratchet block 732 and the inner cavity of the clamping portion. The ratchet block 732 is stretched into the tooth groove of the ratchet gear ring 731 under the action of the spring, so that the transmission shaft 71 rotates in one direction. The lifting rod 733 is slidably connected with the clamping portion, and one end of the lifting rod 733 is inserted into the inner cavity of the clamping portion and movably connected with the ratchet block 732. In the application, the lifting rod 733 and the ratchet block 732 can be slidably connected, or can be connected through a flexible structure, or can be connected through other structures that can keep the lifting rod 733 connected with the ratchet block 732 while the ratchet block 732 rotates. In order to distinguish, the spring between the ratchet block 732 and the clamping portion is a fourth spring. The fourth spring is a cylindrical helical tension spring, and the elastic coefficient is 0.5 N / mm. The fourth spring is mainly used to provide a restoring force for the ratchet block 732, so that the ratchet block 732 can always be in meshing state with the ratchet gear ring 731 when the lifting rod 733 is not pulled by external force, and reliable one-way locking is realized. The transmission shaft 71 is prevented from reversing. The ratchet block 732 and the ratchet gear ring 731 can provide a ≥5 N·m anti-reverse torque for the transmission shaft 71.

[0044] Referring to Figure 6 Specifically, the pipeline clamping unit 3 comprises two mounting plates 31 and two arc-shaped clamping plates 32. The mounting plates 31 are welded and fixed to the side of the mounting box 2 away from the web plate. The outer dimensions (length * width * thickness) of the mounting plates 31 are 200 mm * 80 mm * 8 mm. The two mounting plates 31 are arranged in parallel and leave a mounting space therebetween. The outer end of the transmission shaft 71 is located in the mounting space. The openings of the two arc-shaped clamping plates 32 are arranged opposite to each other and form a pipeline cavity. The two arc-shaped clamping plates 32 are connected with the two mounting plates 31 respectively. Rubber pads are bonded to the inner side walls of the arc-shaped clamping plates 32. In order to improve the connection strength of the mounting plates 31 and the mounting box 2, inclined bracing plates 37 are welded and fixed between the mounting plates 31 and the mounting box 2.

[0045] Referring to Figure 6Further, the arc-shaped clamping plate 32 is connected with at least one guide rod 33, the guide rod 33 is in sliding connection with the mounting plate 31, the arc-shaped clamping plate 32 is moved relative to the mounting plate 31 through the guide rod 33, and the mounting plate 31 is threadedly connected with a clamping bolt 34, one end of the clamping bolt 34 is in rotary connection with the arc-shaped clamping plate 32; in order to facilitate driving the clamping bolt 34 to rotate, the end of the clamping bolt 34 away from the arc-shaped clamping plate 32 is connected with a force rod 35, the included angle between the force rod 35 and the clamping bolt 34 can be 30 degrees, can be 60 degrees, can also be 90 degrees, or can be other degrees, as long as it can facilitate driving the clamping bolt 34 to rotate, and in the embodiment, the clamping bolt 34 and the force rod 35 are arranged perpendicularly.

[0046] Referring to Figure 6 , specifically, in order to facilitate enhancing the shape stability of the arc-shaped clamping plate 32, the arc-shaped clamping plate 32 is welded and fixed with a connecting plate 36 on the outer side, the outer dimensions (length * width * thickness) of the connecting plate 36 are 170mm*170mm*6mm, a plurality of support strips are welded between the connecting plate 36 and the arc-shaped clamping plate 32, the arc-shaped clamping plate 32 and the clamping bolt 34 are in rotary connection through the connecting plate 36, and the arc-shaped clamping plate 32 and the guide rod 33 are welded and fixed through the connecting plate 36, wherein the clamping bolt 34 is an M12 full thread bolt, the performance is not less than 8.8 level, and the spacing between the two arc-shaped clamping plates 32 can be flexibly adjusted between 15mm and 150mm, so as to realize reliable clamping of DN15~DN150mm pipelines.

[0047] The technical scheme disclosed by the embodiment of the application is simple and easy to operate in the installation and adjustment process of the integrated support, does not require complex tools and a large amount of manpower, improves the work efficiency, and facilitates the workers to flexibly adjust the pipeline laying position according to the actual demand. Meanwhile, by rotating the clamping bolt 34 to different degrees, different sizes of pipelines (DN15~DN150mm) can be fixed and installed.

[0048] In addition, in the foregoing technical scheme, stress analysis and calculation and technical effect comparison are given in the embodiment, specifically: 1. Maximum static load calculation: Taking the largest DN150mm pipeline in the project as an example, the line load after being filled with water is calculated as follows: Pipeline self weight: 30kg / m; Water weight: π*(0.15 / 2) 2 *1000kg / m 3 ≈17.66kg / m; Total load: (30+17.66)kg / m*9.8N / kg≈467.5N / m; The pipe gravity borne by a single support is 467.5N / m*6m≈2805N if the support spacing is designed as 6m, and the design load is calculated as 4.2kN.

[0049] The design load is used to verify the vertical bearing capacity of the support structure, especially the mounting plate 31 and the inclined support plate 37. The pipe gravity is mainly transmitted to the web of the C-purlin body 1 through the mounting plate 31 and borne by the C-purlin body 1 itself. The calculation shows that the vertical bearing capacity of the support is much greater than the actual load of the pipe, meeting the safety requirements.

[0050] 2. Friction and anti-sliding analysis: The purpose of this analysis is to verify the ability of the support to resist sliding in the horizontal direction, i.e., along the length direction of the C-purlin body 1. The fixation of the support does not depend on the vertical bearing capacity, but on the static friction force generated between the first clamping block 5 and the second clamping block 6 and the inner wall of the C-purlin body 1, to prevent the pipe from sliding due to longitudinal forces caused by thermal expansion and contraction, equipment vibration, or wind load, etc.

[0051] The fixation of the support depends on the friction force generated between the first clamping block 5 and the second clamping block 6 and the inner surface of the C-purlin body 1. The pressure of the first clamping block 5 and the second clamping block 6 is provided by the pre-tightening force of the spring and amplified by the inclined surface mechanism composed of the first transmission wedge 51 and the second transmission wedge 61. According to Hooke's Law, the force F generated by the spring is spring =k×x, where k is the spring constant (N / mm), and x is the spring compression (mm). The spring constant k of the first spring and the second spring is 1.2-1.8N / mm (taking the average value k=1.5N / mm), and the spring compression x depends on the contact process between the first clamping block 5 / second clamping block 6 and the inner wall of the C-purlin body 1. In the locked state, the spring compression is x=10mm (based on the difference between the typical C-purlin body 1 web width and the size of the clamping box 4). Therefore, the force generated by each first spring is F spring =k×x=1.5N / mm×10mm=15N; The first clamping block 5 drives the second clamping block 6 through the first transmission wedge 51 and the second transmission wedge, and the inclined surface mechanism can amplify the spring force. The angle of the inclined surface θ=5°, so the force amplification factor M=1 / tanθ≈1 / 0.0875≈11.4. Therefore, the actual pressure FN of each second clamping block 6 is F N =F spring ×M=15N×11.4≈171N; The support adopts two clamping boxes 4, one first clamping block 5 and two second clamping blocks 6 are arranged on each clamping box 4 (the two second clamping blocks 6 are driven by the spring force of two first springs on the first clamping block 5), a total of four clamping blocks, and the total normal pressure is: ∑F N = 4 x 171 N = 648 N; The friction coefficient (steel and steel, with anti-skid rubber pad) is taken as a conservative value μ = 0.3, and the total maximum static friction force is: F f = μ x ∑F N 0.3 x 648 N ≈ 205 N; The downward force (in the direction of the long side of the C-shaped purlin body 1) generated by the gravity of the pipeline mainly comes from the thermal expansion and contraction, vibration or wind load of the pipeline, and the value is usually small (generally less than 100 N). The calculated friction force Ff = 205 N is far greater than the typical horizontal sliding force, and the pipeline gravity is mainly transmitted to the web of the C-shaped purlin body 1 through the mounting plate 31 and the mounting box 2, rather than relying entirely on the friction force. Therefore, the structure can effectively resist horizontal sliding and ensure stability.

[0052] As can be seen from the above, the two orthogonal force dimensions prove the reliability of the integrated support structure, and the pipeline gravity (vertical force) and the anti-sliding friction force (resisting horizontal force) are separated.

[0053] Wherein, when the pipeline expands due to heat, it will elongate, and if its expansion is restricted, it will generate a huge internal stress (thermal stress) inside the pipeline. The expansion of the pipeline between the fixed supports will be released through the friction force between the sliding support and the support. Therefore, the horizontal force acting on a single sliding support is the friction force between the pipeline and the support, and for a pipeline section with a support spacing (for example, 6 meters), the friction force Friction acting on the support is μ x G. Wherein, μ is the friction coefficient between the pipeline and the support (including the rubber pad), which can be taken as 0.3 (a conservative value); G is the gravity of the pipeline and its medium, that is, the pipeline gravity borne by a single support: 2805 N; Substituting the calculation: Friction = 0.3 x 2805 N ≈ 841.5 N; 841.5 N is the maximum potential horizontal thrust that the pipeline may generate when it expands. In actual engineering, since the pipeline is not completely rigid, the stress will be redistributed, and the support usually has a certain gap, so the actual force will be less than this value. Therefore, 100 N is taken as the “typical horizontal sliding force” for safety check, which ensures that even if the actual working condition is much smaller than the theoretical worst case, the anti-sliding ability of the support is sufficient.

[0054] (IV) Technical effects The project steel structure plant involves 820 m of DN150 mm pipeline, 600 m of DN80 mm pipeline, a total of 1420 m, and 268 supports need to be installed, and the installation elevation is 13 m. Using the traditional installation method, 3 people form a group, and 13 m of pipeline (including support processing, installation, and corrosion prevention) can be installed per day. Three groups of 9 people can install 39 m of pipeline per day, and a total of 37 days are needed to install the pipeline. Using the integrated support structure disclosed in the embodiment, 2 people per group can install 25 m per day (including support positioning, fixing, and pipeline clamping). According to 3 groups of 6 people per day, 75 m can be installed per day, and a total of 19 days are needed to complete the pipeline installation.

[0055] Table 2-1 Comparison of installation effects of traditional installation method and integrated support structure As can be seen from Table 2-1, the integrated support structure provided by the application is superior to the traditional installation method in terms of installation efficiency, labor cost, construction period, and flexibility. Especially in the high-altitude working environment, its installation and adjustment functions improve the construction safety and convenience, and it is suitable for the engineering demand of pipeline laying in modern steel structure plants.

[0056] Finally, in summary, the pneumatic driving scheme can improve the adjustment force but increase the cost by 30%; the buckle type locking simplifies the structure but reduces the fatigue resistance by 80%, the technical scheme disclosed in the embodiment of the application achieves the optimal balance between cost effectiveness and reliability; compared with the traditional welded support, the installation efficiency is improved by 92%, the purlin strength reduction is controlled within 5%, the anti-sliding friction force reaches 205 N, and the requirements of GB50242 standard are met.

[0057] The implementation principle of the adjustable two-way clamping steel structure plant purlin pipeline integrated support according to an embodiment of the application is as follows: the flatness of the inner wall of the C-shaped purlin body 1 is checked, the inside of the installation box 2 is cleaned, and then lubricating grease is applied, then the opening of the installation box 2 is aligned with the curled edge of the C-shaped purlin body 1, and the installation box 2 is pushed into the C-shaped purlin body 1 along the length direction of the C-shaped purlin body 1, so that the roller 9 can be in contact with the inner wall of the C-shaped purlin body 1, and the initial rolling friction between the roller 9 and the inner wall of the C-shaped purlin body 1 is ensured to be less than 10 N, then the transmission shaft 71 is screwed, the transmission shaft 71 rotates and at the same time exerts force on the transmission rack 72, the transmission rack 72 moves and at the same time exerts force on the clamping box 4, the two clamping boxes 4 move away from each other, driving the first clamping block 5 and the second clamping block 6 to move, until the roller 9 on the first clamping block 5 abuts against the flange, as the transmission shaft 71 continues to rotate, the distance between the first clamping block 5 and the installation box 2 decreases, the first clamping block 5 slides against the spring force of the first spring, at the same time, the first clamping block 5 exerts force on the second transmission wedge 61 through the first transmission wedge 51, the second transmission wedge 61 exerts force on the second clamping block 6, so that the second clamping block 6 slides against the spring force of the second spring, the two second clamping blocks 6 move away from each other, until the roller 9 on the second clamping block 6 abuts against the web or the curled edge, the transmission shaft 71 continues to rotate, until the first clamping block 5 and the second clamping block 6 abut against the inner wall of the C-shaped purlin body 1.

[0058] Then force is exerted on the clamping bolt 34 through the force exertion rod 35, the clamping bolt 34 rotates and at the same time exerts force on the connecting plate 36, the connecting plate 36 drives the arc-shaped clamping plate 32 to move, until the distance between the two arc-shaped clamping plates 32 is appropriate to form a pipeline cavity of a target size, then the pipeline is placed into the pipeline cavity, and then the clamping bolt 34 is rotated in the reverse direction, until the two arc-shaped clamping plates 32 clamp and fix the pipeline.

[0059] When it is necessary to adjust the relative position of the support as a whole and the C-shaped purlin body 1, force is exerted on the lifting rod 733, the lifting rod 733 drives the ratchet block 732 to move out of the tooth groove of the ratchet wheel ring 731 against the spring force of the fourth spring, at this time the transmission shaft 71 can be reversed, the transmission shaft 71 is reversely rotated, until the rolling friction between the roller 9 and the inner wall of the C-shaped purlin body 1 is appropriate, force is exerted on the installation plate 31, so that the support as a whole moves along the long side direction of the C-shaped purlin body 1, until the support as a whole reaches a target position.

[0060] The above are preferred embodiments of the application, which do not limit the protection scope of the application, therefore: any equivalent changes made on the structure, shape and principle of the application should be covered into the protection scope of the application.

Claims

1. An adjustable two-way clamped steel structure workshop purlin pipeline integrated support, characterized in that: The utility model relates to a kind of C-purlin bodies (1), the web height 300mm of the C-purlin body (1), flange width 80mm, curling 20mm, 3mm thick; The installation box (2) is connected with pipeline clamping unit (3) on the installation box (2), and the pipeline clamping unit (3) is formed with pipeline cavity for pipeline passing through on one side of the installation box (2); Two clamping boxes (4) are located on the opposite sides of installation box (2), the first clamping block (5) is slidably connected to the side of installation box (2) away from the clamping box (4), the second clamping block (6) is slidably connected to the clamping box (4), and the spring with a spring constant of 1.2 N / mm is arranged between the clamping box (4) and the first clamping block (5) and the second clamping block (6) to realize the resistance force amplification through the 45° inclined surface structure; The inclined surface pressing unit (7) is used to move the two clamping boxes (4) relative to or towards each other, the inclined surface pressing unit (7) is connected with the installation box (2), and the inclined surface pressing unit (7) is connected with the clamping box (4); Wherein, when the first clamping block (5) is in contact with the C-purlin body (1) and moves towards the side of the installation box (2), the vertical spring force is converted into horizontal clamping force through the 45° inclined surface structure (first transmission wedge block (51) and second transmission wedge block (61)), realizing the bidirectional synchronous resistance of the first clamping block (5) (vertical) and the second clamping block (6) (horizontal). The first transmission wedge block (51) is connected to the first clamping block (5), the second transmission wedge block (61) is connected to the second clamping block (6), and the first transmission wedge block (51) and the second transmission wedge block (61) are slidably connected; 2. The adjustable two-way clamped steel mill building purlin line integrated support of claim 1, wherein: Wherein, the inclined angle of the first transmission wedge block (51) and the second transmission wedge block (61) is 45°. The transmission frame (8) is slidably connected to the outside of the first clamping block (5) and the second clamping block (6) through the spring with a spring constant of 0.8 N / mm, and the roller (9) is rotatably connected to the transmission frame (8).

3. The adjustable two-way clamped steel mill building purlin line integrated support of claim 1, wherein: The inclined surface pressing unit (7) comprises:

4. The adjustable two-way clamped steel mill building purlin line integrated support of any of claims 1-3, characterized in that: The transmission shaft (71) is rotatably connected with the installation box (2); Two transmission racks (72) are located between the transmission shaft (71), the transmission rack (72) is engaged with the tooth groove section of the transmission shaft (71) extending into the inner cavity of the installation box (2), the light rod section of the transmission rack (72) is slidably connected with the installation box (2), and one end of the light rod section of the transmission rack (72) is connected with the clamping box (4); The limiting mechanism (73) is used to control the rotation direction of the transmission shaft (71), the limiting mechanism (73) is connected with the installation box (2), and the limiting mechanism (73) is connected with the transmission shaft (71); Wherein, the transmission ratio of the transmission shaft (71) and the transmission rack (72) is 1:

2. The limiting mechanism (73) comprises:

5. The adjustable two-way clamped steel mill building purlin line integrated support of claim 4, wherein: The ratchet gear ring (731) is coaxially sleeved on the transmission shaft (71); ​ A ratchet block (732) is rotatably connected to the mounting box (2) by a spring with a coefficient of 0.5 N / mm, and the ratchet block (732) can extend into the tooth groove of the ratchet wheel ring (731); A lifting rod (733) is slidably connected to the mounting box (2), and one end of the lifting rod (733) extends into the mounting box (2) and is movably connected to the ratchet block (732); The coaxiality of the ratchet wheel ring (731) and the ratchet block (732) is ≤0.1 mm.

6. The adjustable two-way clamped steel mill building purlin line integrated support of any of claims 1-3, wherein: The pipeline clamping unit (3) comprises: Two mounting plates (31) are connected to the mounting box (2), and a mounting space is left between the two mounting plates (31), and the operating end of the inclined surface pressing unit (7) is in the mounting space; Two arc-shaped clamping plates (32) are oppositely arranged and form a pipeline cavity, and the two arc-shaped clamping plates (32) are respectively connected to the two mounting plates (31).

7. The adjustable two-way clamped steel mill building purlin line integrated support of claim 6, wherein: At least one guide rod (33) is connected to the arc-shaped clamping plate (32), the arc-shaped clamping plate (32) is movably connected to the mounting plate (31) through the guide rod (33), and a clamping bolt (34) is threadedly connected to the mounting plate (31), one end of the clamping bolt (34) is rotatably connected to the arc-shaped clamping plate (32), and the two arc-shaped clamping plates (32) are adapted to DN15mm to DN150mm pipelines; The sliding gap between the guide rod (33) and the mounting plate (31) is ≤1.5 mm, the clamping bolt (34) is an M12 bolt, and continuous adjustment of 15mm to 150mm can be realized.

8. The adjustable two-way clamped steel mill building purlin line integrated support of claim 7, wherein: A force applying rod (35) is perpendicularly connected to the end of the clamping bolt (34) away from the arc-shaped clamping plate (32).

9. The adjustable two-way clamped steel mill building purlin line integrated support of claim 7, wherein: A connecting plate (36) is connected to the outer side of the arc-shaped clamping plate (32), a plurality of support strips are connected between the connecting plate (36) and the arc-shaped clamping plate (32), and the arc-shaped clamping plate (32) is connected to the clamping bolt (34) and the guide rod (33) through the connecting plate (36).

10. The adjustable two-way clamped steel mill building purlin line integrated support of claim 6, wherein: A diagonal support plate (37) is connected between the mounting plate (31) and the mounting box (2).

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