CN204817838U - Axial compression device of splice and splice - Google Patents
Axial compression device of splice and splice Download PDFInfo
- Publication number
- CN204817838U CN204817838U CN201520406857.3U CN201520406857U CN204817838U CN 204817838 U CN204817838 U CN 204817838U CN 201520406857 U CN201520406857 U CN 201520406857U CN 204817838 U CN204817838 U CN 204817838U
- Authority
- CN
- China
- Prior art keywords
- splice
- straight hole
- screw rod
- reinforcing bar
- axial compression
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Abstract
The utility model relates to an axial compression device of splice and splice, the steel bar connection who adopts at present technique all needs to process the reinforcing bar, causes reinforcing bar intensity to be destroyed. The utility model provides a splice and axial compression connecting device, include 1 screw rod and can connect respectively 2 extrusion covers at screw rod both ends, wherein the both ends of extrusion cover are the cylinder, and one end is held and is held with the straight hole that the reinforcing bar extrusion is connected for being used for, and the other end is for being used for together the screw nose end that the screw rod is connected, the external conjugate diameter of straight hole end is greater than the external conjugate diameter of screw nose end straight hole end open -ended excircle border is equipped with the chamfer, adopts splice and axial compression connecting device, do not process the reinforcing bar, guarantee reinforcing bar intensity is not destroyed, the efficiency of construction is high, connects the steady quality, easy operation is convenient.
Description
Technical field
The utility model belongs to technical field of building construction, is specifically related to the axial compression device of a kind of splice and splice.
Background technology
Current bar connecting generally adopts mechanical connection, and mechanical joining methods mainly contains: (1) cold extrusion connects; (2) cutting cone is threaded; (3) rib rolled thread straight screw connection is shelled; (4) cold-heading jumping-up rolled thread straight screw connection.Wherein cutting cone is threaded, shells rib rolled thread straight screw connection and cold-heading jumping-up rolled thread straight screw connection all needs to process the connecting portion of reinforcing bar, working position easily produces stress and concentrates when Rapid stretching, cause coupling assembling percentage elongation not reach the danger of standard-required with regard to rupturing in advance.It is the splice (also referred to as " sleeve ") of being inserted reinforcing bar by equipment extruding that cold extrusion connects, and is connected after making splice produce plastic deformation with reinforcing bar.When adopting this connected mode, reinforcing bar does not change, and pressed splice part can be kept to be connected with free end portion equal strength, and coupling assembling percentage elongation can meet the demands.The cold extrusion mode great majority adopted in current practical application are radial compression, the splice adopted mostly is monoblock type, extrusion equipment is needed to be transported to bar connecting scene, and splice will extrude repeatedly could be integral with steel bars, extruding efficiency is low, on-the-spot extruding quality is difficult to ensure card, and radial compression still can cause certain deformation to reinforcing bar, and reinforced steel bar strength is reduced.The early stage cold extrusion mode also having the bar connecting of part engineering to adopt axial compression, the impact of this mode on reinforcing bar is minimum, but device therefor complex structure at that time, operation is loaded down with trivial details, so there is no be popularized, there is no at present and adopted in actual applications.
Authorization Notice No. is CN87201173, name is called utility model patent (on 03 30th, 1987 applying date of " Symmestric axial direction extruding reinforcing bar connecting machine ", authorized announcement date on 01 20th, 1988) describe a kind of Symmestric axial direction extruding reinforcing bar connecting machine, this steel bar connecting machine comprises several oil cylinders be parallel to each other, and rear cross beam, moved cross beam and four pull bars form frame, and by the combined oil cylinder body that is made up of an oil cylinder forming even number, this group oil cylinder was both arranged in the bilateral symmetry of the vertical section by combined oil cylinder body longitudinal center line, arrange in the bilateral symmetry of the horizontal profile by combined oil cylinder body longitudinal center line again, combined oil cylinder body is arranged between the rear cross beam of frame and moved cross beam, the longitudinal center line of combined oil cylinder body and the dead in line of the reinforcing bar be connected.
There is following problem in the program:
1. complex structure, front beam is connected by four pull bars with moved cross beam, and crossbeam centering is poor, and during extruding, dummy block easily unbalance loading occurs;
2. steel bar connecting machine is without spike and hanging apparatus, and the level that is not easy to steadily is placed, and is not easy to lifting;
3. adopted splice is monoblock type, needs to extrude at the construction field (site), and efficiency of construction is low, and quality is difficult to ensure card.
Utility model content
For the defect existed in prior art, the purpose of this utility model is to provide the axial compression device of a kind of splice and splice.The axial compression device of this splice and splice can be realized splice and is connected with reinforcing bar by axial compression, and reinforcing bar does not change; Axial compression apparatus structure is simple, is convenient to organize factorial construction, the system easy to control the quality of splice and pressed splice.
For reaching above object, the technical solution adopted in the utility model is: a kind of splice, comprise 1 screw rod and 2 extruded sleeves that can be connected to described screw rod two ends, wherein, the two ends of described extruded sleeve are cylindrical shape, one end be for hold and with the straight hole end of pressed splice, the other end is the screw thread nose end for connecting with described screw rod, the overall diameter of described straight hole end is greater than the overall diameter of described screw thread nose end, is provided with chamfering on the outer circumferential edge edge of described straight hole end opening.
Further, described screw rod two ends are external screw thread, and middle part is cross section is polygonal fastening section of being convenient to screwing operations.
Further, the externally threaded diameter at described screw rod two ends can be inconsistent.
For reaching above object, the utility model additionally provides a kind of axial compression device of splice, comprise the interconnective cylinder component in one end and base, be arranged on the piston component in described cylinder component, be arranged on the top pressure head on described piston component, be arranged on the extrusion die in described base, the extruded sleeve of splice is extruded in described extrusion die, and described cylinder component is provided with inlet nozzle.
Further, described extrusion die inside is funnelform throat structure, is reduced gradually to the diameter of bore away from pressure head one end, described top by the exit orifice near pressure head one end, described top; Described outer bore dia is greater than the overall diameter of the straight hole end of described extruded sleeve; Described diameter of bore is less than the overall diameter of the straight hole end of described extruded sleeve, is greater than the overall diameter of the end of thread of described extruded sleeve.
Further, described cylinder component is also provided with oil return nozzle.
Further, suspension ring and spike is respectively equipped with at the top of axial compression device and bottom.
Effect of the present utility model have following some:
1. reinforcing bar axial compression machine structure is simple, and easy to operate, during extruding, centering is good, can be positioned over ground stably, and lifting is convenient;
2. the connection of extruded sleeve and reinforcing bar can realize once extruded, improves efficiency of construction;
3. extrusion process can complete in factory, is convenient to organize factorial construction, and the squeeze flow quality of extruded sleeve and reinforcing bar is easy to control;
4. only need connect with screw rod during the connecting reinforcement of job site, facilitate site operation;
5. need not process reinforcing bar, bar connecting end and free segment equal strength, reinforcing bar percentage elongation and tensile strength can give full play to;
6. the chamfering on the outer circumferential edge edge of the opening of extruded sleeve straight hole end can well realize seamlessly transitting between extruded sleeve outside dimension and extrusion die hole size, ensures extruding quality;
7. the centering of bar connecting is good;
8. can realize the connection between different-diameter reinforcing bar.
Accompanying drawing explanation
Fig. 1 is the sectional view of splice extruded sleeve in the utility model detailed description of the invention;
Fig. 2 is the structure chart of splice screw rod in the utility model detailed description of the invention;
Fig. 3 is the extruded sleeve of splice and the connection diagram of reinforcing bar in the utility model detailed description of the invention;
Fig. 4 is the connection diagram of splice and reinforcing bar in the utility model detailed description of the invention;
Fig. 5 is the sectional view of axial pressurizing unit in the utility model detailed description of the invention;
Fig. 6 is the extrusion die sectional view of axial pressurizing unit in the utility model detailed description of the invention;
Fig. 7 is the operation principle schematic diagram one of axial pressurizing unit in the utility model detailed description of the invention;
Fig. 8 is the operation principle schematic diagram two of axial pressurizing unit in the utility model detailed description of the invention;
In figure: 1-cylinder component, 2-inlet nozzle, 3-suspension ring, 4-piston component, 5-oil return nozzle, 6-pushes up pressure head, 7-base, 8-extrusion die, 9-spike, 10-reinforcing bar, 11-extruded sleeve, 12-screw rod.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the utility model is further described.
As shown in Figures 1 to 4, a kind of splice, is made up of a screw rod 12 and two extruded sleeves 11.2 extruded sleeves 11 can be connected to the two ends of screw rod 12.
As shown in Figure 2, the two ends of screw rod 12 are external screw thread, and middle part is that the cross section of fastening section is polygon (polygon is n bar limit, wherein n >=2, and comprising two limits is the situation of parallel lines) for facilitating fastened tools to carry out fastening section of screwing operations.Wherein, the external screw thread at screw rod 12 two ends can be processed into identical or different diameter (M >=M1), the extruded sleeve of different-diameter so just can be coordinated to use, realize being interconnected of different-diameter reinforcing bar.
As shown in Figure 1, Figure 3, the two ends of extruded sleeve 11 are respectively straight hole end and screw thread nose end (profile at these two ends is cylindrical shape), wherein straight hole end is for holding reinforcing bar 10 to be connected, and make straight hole end produce plastic deformation, by extruded sleeve 11 together with reinforcing bar 10 compact siro spinning technology by axial compression; The other end is screwed hole, can be connected with the external screw thread on screw rod 12.Wherein, the overall diameter of straight hole end
be greater than the overall diameter of screw thread nose end
and cut chamfering at the edge, outer ring of straight hole end opening, chamfer angle is a, 5 °≤a≤45 °, and chamfering small end is of a size of
(i.e. the overall diameter of straight hole end opening, and
), this chamfered is in order to in the extrusion process of bar connecting, (direction of extrusion is that pressurizing unit promotes extruded sleeve from screw thread nose end to make extruded sleeve 11 can enter extrusion die smoothly, move to straight hole extreme direction, straight hole end enters the extrusion die of pressurizing unit), and then ensure that squeeze flow obtains good effect.
Screw rod 12 and extruded sleeve 11 adopt steel alloy to make, and after Overheating Treatment, make splice intensity higher than reinforcing bar, and the diameter of the reinforcing bar that can connect as required, the adjustment diameter of thread of screw rod 12 and the straight hole end of extruded sleeve 11 and screw thread nose end diameter, ensure that the bonding strength of bar connecting part meets the needs of construction.
In order to better realize the connection of splice and reinforcing bar, the utility model additionally provides a kind of axial compression device of the splice for bar connecting operation.
As shown in Figure 5, this device comprises: the interconnective cylinder component 1 in one end and base 7, be arranged on the piston component 4 in cylinder component 1, be arranged on the top pressure head 6 on piston component 4, be arranged on the extrusion die 8 in base 7, cylinder component 1 is provided with inlet nozzle 2 and oil return nozzle 5, then piston component 4 is to the motion of base 7 direction in inlet nozzle 2 oil-feed, and oil return nozzle 5 oil-feed then piston component 4 moves (reset) to cylinder component 1 direction.
Wherein, extrusion die 8 inside is funnelform throat structure (as shown in Figure 6), and exit orifice one end of extrusion die 8 is near top pressure head 6, and endoporus one end, away from top pressure head 6, is reduced gradually by exit orifice inward hole orient diameter.Wherein, exit orifice (in extrusion operation, extruded sleeve 11 enters the entrance of extrusion die 8) diameter is greater than the overall diameter of the straight hole end of extruded sleeve 11
diameter of bore (diameter of the outlet of funnel-form extrusion die 8)
be less than the overall diameter of the straight hole end of described splice extruded sleeve 11
be greater than the overall diameter of the end of thread of splice extruded sleeve 11
also the overall diameter of straight hole end opening is greater than
(
see Fig. 1).The axial compression device of splice can change the extrusion die of different diameter of bore according to actual needs, to complete the squeeze flow operation of different-diameter reinforcing bar and the extruded sleeve supporting with it.
Top pressure head 6 be solid construction, is arranged on piston component 4, and reciprocates with piston component 4, and top pressure head 6 is coaxial with the extrusion die 8 in base 7, extruded sleeve 11 uniform force when can ensure extrusion operation, and smooth and easyly passes through extrusion die 8.
In addition, the bottom of axial compression device, is provided with some spikes 9, can ensure axial compression device horizontal positioned, facilitate the carrying out of extrusion operation.At the top of axial compression device, be provided with some suspension ring 3, conveniently can compress axially handling and the position adjustment of device.Therefore, the axial compression device that the utility model provides not only can carry out the bar connecting extrusion operation of batch production in factory, and the reserved area that also can be arranged on job site easily carries out scene processing, saves man-hour further, ensures construction speed.
Illustrate the practical application of the axial compression device of splice provided by the utility model and splice below.
As shown in Figure 7, first by the endoporus of one end of reinforcing bar 10 to be connected through the extrusion die 8 of connection pressurizing unit, the straight hole end interior (polish directly can carry out squeeze flow operation without the need to carrying out cutting to the port of reinforcing bar) of the extruded sleeve 11 be arranged between extrusion die 8 and solid top pressure head 6 is inserted.Inlet nozzle 2 oil-feed, solid top pressure head 6 moves to extrusion die 8 direction with piston component 4, and the screw thread nose end that push extruded sleeve 11 makes the straight hole end of extruded sleeve 11 enter (see Fig. 8) in extrusion die 8, through chamfered, (chamfer angle is a at the edge, outer ring of the opening of the straight hole end of extruded sleeve 11,5 °≤a≤45 °, the overall diameter of straight hole end opening, and
), chamfering can make straight hole end enter the endoporus of extrusion die 8 smoothly, make the straight hole end overall diameter of extruded sleeve 11 by
boil down to
make reinforcing bar with extruded sleeve compact siro spinning technology together, thus complete the pressed splice operation of axial compression.After squeeze flow operation terminates, oil return nozzle 5 oil-feed, piston component 4 resets, and the squeeze flow that can prepare to carry out next root reinforcing bar and another extruded sleeve operates.When at the construction field (site) attended operation being carried out to two reinforcing bars being connected with extruded sleeve, only need the two ends screw thread nose end of the extruded sleeve 11 of squeeze flow on two reinforcing bars being tightened on a screw rod 12, just can complete the attended operation (as shown in Figure 4) of two reinforcing bars.
Device described in the utility model is not limited to the embodiment described in detailed description of the invention, and those skilled in the art draw other embodiment according to the technical solution of the utility model, belongs to technological innovation scope of the present utility model equally.
Claims (7)
1. a splice, comprise 1 screw rod (12) and 2 extruded sleeves (11) at described screw rod (12) two ends can be connected to, it is characterized in that: the two ends of described extruded sleeve (11) are cylindrical shape, one end be for hold and with the straight hole end of pressed splice, the other end is the screw thread nose end for connecting with described screw rod (12), the overall diameter of described straight hole end is greater than the overall diameter of described screw thread nose end, is provided with chamfering on the outer circumferential edge edge of described straight hole end opening.
2. a kind of splice as claimed in claim 1, is characterized in that: described screw rod (12) two ends are external screw thread, and middle part is cross section is polygonal fastening section of being convenient to screwing operations.
3. a kind of splice as claimed in claim 1 or 2, is characterized in that: the externally threaded diameter at described screw rod (12) two ends can be inconsistent.
4. one kind for extruding the axial compression device of splice described in claim 1-3, it is characterized in that: comprise the interconnective cylinder component in one end (1) and base (7), be arranged on the piston component (4) in described cylinder component (1), be arranged on the top pressure head (6) on described piston component (4), be arranged on the extrusion die (8) in described base (7), the extruded sleeve (11) of splice is extruded in described extrusion die (8), described cylinder component (1) is provided with inlet nozzle (2).
5. a kind of device as claimed in claim 4, it is characterized in that: described extrusion die (8) inside is funnelform throat structure, is reduced gradually to the diameter of bore away from pressure head (6) one end, described top by the exit orifice near pressure head (6) one end, described top; Described outer bore dia is greater than the overall diameter of the straight hole end of described extruded sleeve (11); Described diameter of bore is less than the overall diameter of the straight hole end of described extruded sleeve (11), is greater than the overall diameter of the end of thread of described extruded sleeve (11).
6. a kind of device as claimed in claim 4, is characterized in that: described cylinder component (1) is also provided with oil return nozzle (5).
7. a kind of device as described in any one of claim 4-6, is characterized in that: be respectively equipped with suspension ring (3) and spike (9) at the top of axial compression device and bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520406857.3U CN204817838U (en) | 2015-06-12 | 2015-06-12 | Axial compression device of splice and splice |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520406857.3U CN204817838U (en) | 2015-06-12 | 2015-06-12 | Axial compression device of splice and splice |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204817838U true CN204817838U (en) | 2015-12-02 |
Family
ID=54675480
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520406857.3U Active CN204817838U (en) | 2015-06-12 | 2015-06-12 | Axial compression device of splice and splice |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204817838U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104985093A (en) * | 2015-06-12 | 2015-10-21 | 中国核电工程有限公司 | Steel bar joint, axial extrusion device of steel joint, and steel bar connection method |
| CN106869818A (en) * | 2017-05-04 | 2017-06-20 | 柳富献 | A kind of hollow rod joint |
-
2015
- 2015-06-12 CN CN201520406857.3U patent/CN204817838U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104985093A (en) * | 2015-06-12 | 2015-10-21 | 中国核电工程有限公司 | Steel bar joint, axial extrusion device of steel joint, and steel bar connection method |
| CN106869818A (en) * | 2017-05-04 | 2017-06-20 | 柳富献 | A kind of hollow rod joint |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104475475B (en) | One turns round crowded shaping dies and manufacturing process | |
| CN105583351B (en) | The medium-sized flat forging process of slip shaft yoke | |
| CN104985093A (en) | Steel bar joint, axial extrusion device of steel joint, and steel bar connection method | |
| CN204817838U (en) | Axial compression device of splice and splice | |
| CN108262435B (en) | A kind of titanium alloy bar stock pulling forging method | |
| CN104438415A (en) | Multi-directional composite multi-channel screw extrusion die for metal blank | |
| CN104368955A (en) | Multifunctional bidirectional hydraulic bearing puller | |
| CN204112606U (en) | The branch sleeve of steel concrete supporting | |
| CN101509302B (en) | Single steel strand stay plant and assembling method thereof | |
| CN106273317A (en) | Screw flight element provision for disengagement | |
| CN103331324B (en) | Direct ECAE (Equal Channel Angular Extrusion) mould | |
| CN104235536B (en) | Connecting tube, hard tube connector structure as well as device and method for machining connecting tube | |
| CN202105868U (en) | Asymmetric forming system and forming device of asymmetric pipe fittings | |
| CN201535037U (en) | Cold extrusion formed steel bar connecting sleeve with straight threads | |
| CN202910093U (en) | Wire drawing machine | |
| CN104148573A (en) | Bolt hexagonal flange surface machining method and device | |
| CN104084438A (en) | Diamond mold specialized for welding wire | |
| CN204023894U (en) | Reinforcing steel bar machinery joint | |
| CN211304276U (en) | Quick detachable aluminium alloy extrusion die | |
| CN201372520Y (en) | Single steel strand inhaul cable complete device | |
| CN206199903U (en) | A kind of split type plug | |
| CN205112328U (en) | Optical cable production mould | |
| CN104191177A (en) | Hot heading straight thread rebar and production device and production technology thereof | |
| CN210436085U (en) | Puller ejector rod extension device | |
| CN103660018B (en) | Rapid clamping and dismounting type beam clamp |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |