CN215620249U - Rebar preloaded multi-directional die forging hydraulic press frame - Google Patents
Rebar preloaded multi-directional die forging hydraulic press frame Download PDFInfo
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- CN215620249U CN215620249U CN202121685076.4U CN202121685076U CN215620249U CN 215620249 U CN215620249 U CN 215620249U CN 202121685076 U CN202121685076 U CN 202121685076U CN 215620249 U CN215620249 U CN 215620249U
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Abstract
The utility model relates to the technical field of a hydraulic press pre-tightening structure, in particular to a reinforcing steel bar pre-tightening type multidirectional die forging hydraulic press frame which comprises an upper cross beam, a lower cross beam, a press main cylinder, a perforation cylinder, an upright post, a longitudinal reinforcing steel bar pre-tightening assembly and a transverse reinforcing steel bar pre-tightening assembly, wherein the press main cylinder is arranged on the upper cross beam, the perforation cylinder is arranged on the upright post, the upper cross beam is connected with the lower cross beam through the upright post, the longitudinal reinforcing steel bar pre-tightening assembly penetrates through the upper cross beam, the upright post and the lower cross beam, and the upper end and the lower end of the longitudinal reinforcing steel bar pre-tightening assembly are respectively fixed on the upper cross beam and the lower cross beam; the transverse steel bar pre-tightening assembly is fixed on the upright post; the longitudinal steel bar pre-tightening assembly and the transverse steel bar pre-tightening assembly transmit pre-tightening force, so that the overall height of the machine body is reduced, and the problems of uneven radial distribution of load, low material utilization rate and the like are solved.
Description
Technical Field
The utility model relates to the technical field of hydraulic press pre-tightening structures, in particular to a reinforcing steel bar pre-tightening type rack of a multidirectional die forging hydraulic press.
Background
At present, a pre-tightening structure of a multidirectional die forging press mainly adopts a pull rod type and a steel wire winding type; although the steel wire winding type structure has good fatigue strength, high bearing capacity and uniform load distribution of pretightening force in the steel bar, the steel wire winding type multidirectional die forging press needs to utilize a pad beam to transfer the pretightening force, the winding pretightening force needs to be directly applied to the bottom of a cylinder for a main cylinder with larger load through an arch beam and the pad beam, and a winding type rack needs to wrap the cylinder body of the main cylinder, so that the overall height of the press body is increased; the pull rod type is characterized in that a double-end stud transmits pretightening force, an oil cylinder with a long stroke can be arranged in the upper cross beam, the overall height of the machine body is reduced, but in a large-tonnage press, the pretightening pull rod is thick, the load is not uniformly distributed along the circular cross section of the pull rod in the radial direction, the fluctuation is large, and the utilization rate of the pull rod material is low.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the problems, and provides a multidirectional die forging hydraulic press reinforcing steel bar pre-tightening type rack and a pre-tightening method, which avoid the problems of nonuniform distribution and large fluctuation of pre-tightening pull rod load along the radial direction of a cross section.
Utility model solves the problem, the technical scheme who adopts is:
a steel bar pre-tightening type multidirectional die forging hydraulic press frame comprises an upper cross beam, a lower cross beam, a press main cylinder, a perforated cylinder, an upright post, a longitudinal steel bar pre-tightening assembly and a transverse steel bar pre-tightening assembly, wherein the press main cylinder is installed on the upper cross beam, the perforated cylinder is installed on the upright post, the upper cross beam is connected with the lower cross beam through the upright post, the longitudinal steel bar pre-tightening assembly penetrates through the upper cross beam, the upright post and the lower cross beam, and the upper end and the lower end of the longitudinal steel bar pre-tightening assembly are respectively fixed on the upper cross beam and the lower cross beam; the transverse steel bar pre-tightening assembly is fixed on the stand column.
Compared with the prior art, the utility model adopting the technical scheme has the outstanding characteristics that:
the longitudinal steel bar pre-tightening assembly and the transverse steel bar pre-tightening assembly transmit pre-tightening force, so that the overall height of the machine body is reduced, and the problems of uneven radial distribution of load, low material utilization rate and the like are solved.
Preferably, the further technical scheme of the utility model is as follows:
the longitudinal steel bar pre-tightening assembly comprises a first pre-stressed steel bar, an upper anchor backing plate, an upper working anchor plate, a lower anchor backing plate, a lower working anchor plate and two groups of tool clamping pieces; the upper end of the first prestressed reinforcement is fixed on the upper cross beam through an upper working anchor plate, an upper anchor backing plate and a tool clamping piece, and the lower end of the first prestressed reinforcement is fixed on the lower cross beam through a lower working anchor plate, a lower anchor backing plate and a tool clamping piece; the prestressed steel bars are fixed through the working anchor plate, the anchor backing plate and the tool clamping pieces, the stability of the prestressed steel bars during pre-tightening is improved, and all the prestressed steel bars in the two corresponding groups of tool clamping pieces in the upper cross beam, the lower cross beam and the stand columns on the two sides are subjected to the same prestress, so that unbalanced load is prevented.
The transverse steel bar pre-tightening assembly comprises a second pre-stressed steel bar, a left anchor base plate, a left working anchor plate, a right anchor base plate, a right working anchor plate and two groups of tool clamping pieces; the left end of the second prestressed reinforcement is fixed on the left upright post through the left working anchor plate, the left anchor backing plate and the tool clamping piece, and the right end of the second prestressed reinforcement is fixed on the right upright post through the right working anchor plate, the right anchor backing plate and the tool clamping piece; the impact force generated in the moment of unloading after pre-tightening is completed can be relieved through the base plate and the working anchor plate, and the function of the protection device is achieved.
A fixing block is arranged on the upright post, and the transverse steel bar pre-tightening assembly is fixed on the fixing block; the width of the rack is ensured to be unchanged, and the transverse steel bar pre-tightening assembly is stably fixed on the stand column of the rack.
The protective housing is arranged on the outer side of the transverse steel bar pre-tightening assembly, so that external impact is prevented, and the protective housing has the effect of a protective device.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic top view of the present invention;
FIG. 3 is a schematic side view of the present invention;
FIG. 4 is a schematic cross-sectional view at AA in FIG. 1;
FIG. 5 is a schematic cross-sectional view at BB in FIG. 1;
fig. 6 is a schematic cross-sectional view illustrating the left end of the second prestressed reinforcement bar of the present invention being fixed;
fig. 7 is a schematic cross-sectional view illustrating the right end of the second prestressed reinforcement bar according to the present invention.
Labeled as: an upper cross beam 1; a lower cross beam 2; a press master cylinder 3; a perforating cylinder 4; a column 5; a fixed block 501; a protective shell 6; a first prestressed reinforcement 7; an upper anchor pad 801; an upper work anchor plate 802; a lower anchor backing plate 901; a lower work anchor plate 902; a tool jaw 10; a second prestressed reinforcement 11; a left working anchor plate 1201; a left anchor pad 1202; a right work anchor plate 1301; a right anchor pad 1302; a longitudinal steel bar pre-tightening assembly A; a transverse steel bar pre-tightening component B; a tensioning jack 14; a bracket 15; and a stopper plate 16.
Detailed Description
The utility model will be further illustrated by the following examples, which are intended only for a better understanding of the present invention and therefore do not limit the scope of the utility model.
As shown in fig. 1 to 7, a steel bar pre-tightening type multidirectional die forging hydraulic press frame comprises an upper cross beam 1, a lower cross beam 2, a press main cylinder 3, a perforation cylinder 4, an upright post 5, a longitudinal steel bar pre-tightening assembly a and a transverse steel bar pre-tightening assembly B, wherein the press main cylinder 3 is installed in a main cylinder installation hole on the upper cross beam 1, the upright post 5 is provided with the perforation cylinder 4 and a square fixing block 501, the upper cross beam 1 is connected with the lower cross beam 2 through the upright post 5, the longitudinal steel bar pre-tightening assembly a penetrates through the upper cross beam 1, the upright post 5 and the lower cross beam 2, the transverse steel bar pre-tightening assembly B is fixed on the fixing block 501, the square fixing block 501 is provided with a protection shell 6 formed by building a protection plate, and the protection shell 6 is arranged on the outer side of the transverse steel bar pre-tightening assembly B to play a protection role; wherein, the fixing blocks 501 of the upper crossbeam 1, the lower crossbeam 2 and the two side columns 5 are all provided with corresponding conical holes for installing a working anchor plate and an anchor backing plate.
The longitudinal steel bar pre-tightening assembly A comprises a first pre-stressed steel bar 7, an upper anchor backing plate 801, an upper working anchor plate 802, a lower anchor backing plate 901, a lower working anchor plate 902 and two groups of tool clamping pieces 10, and the transverse steel bar pre-tightening assembly B comprises a second pre-stressed steel bar 11, a left anchor backing plate 1202, a left working anchor plate 1201, a right anchor backing plate 1302, a right working anchor plate 1301 and two groups of tool clamping pieces 10; the upper end of the first prestressed reinforcement 7 is bolted on the upper cross beam 1 through an upper working anchor plate 802, an upper anchor backing plate 801 and a tool clamping piece 10, and the lower end is bolted on the lower cross beam 2 through a lower working anchor plate 902, a lower anchor backing plate 901 and the tool clamping piece 10; the left end of the second prestressed reinforcement 11 is bolted on the fixed block 501 of the left upright post 5 through the left working anchor plate 1201, the left anchor backing plate 1201 and the tool clamping piece 10, and the right end is bolted on the fixed block 501 of the right upright post 5 through the right working anchor plate 1301, the right anchor backing plate 1302 and the tool clamping piece 10; all prestressed reinforcements in the two groups of tool clamps corresponding to the upper part and the lower part and the left part and the right part are subjected to the same prestress, so that unbalanced load is prevented, the base plate and the working anchor plate not only fix the prestressed reinforcements, the reinforcement pre-tightening stability is improved, but also impact force generated at the moment of unloading can be relieved, and the effect of a protection device is achieved; the upper working anchor plate, the upper anchor backing plate, the lower working anchor plate and the lower anchor backing plate are circular working anchor plates and anchor backing plates with round holes penetrating through the upper table top and the lower table top, and the left working anchor plate, the left anchor backing plate, the right working anchor plate and the right anchor backing plate are square working anchor plates and anchor backing plates with round holes penetrating through the upper table top and the lower table top.
When in use, the front clamping type tensioning jack 14 is firstly installed at the outer sides of the longitudinal steel bar pre-tightening component A and the transverse steel bar pre-tightening component B; longitudinal prestress and transverse prestress applied to the whole multidirectional die forging hydraulic press by the first prestressed reinforcement 7 and the second prestressed reinforcement 11 are adjusted through a front clamping type tensioning jack 14; after the prestress adjustment is finished, clamping the first prestress reinforcement 7 and the second prestress reinforcement 11 by using a tool clamping piece 10, and shearing the first prestress reinforcement 7 and the second prestress reinforcement 11 at a position 10-20cm away from the top end of the tool clamping piece 10; wherein, the hydraulic tensioning jack 14 can be matched with the limit plate 16 to adjust the longitudinal prestress and the transverse prestress.
This is novel by vertical reinforcing bar pretension subassembly A and horizontal reinforcing bar pretension subassembly B transmission pretightning force, has reduced the whole height of fuselage, has avoided the problem that load radial distribution is inhomogeneous, material utilization is low, has optimized the rack construction of multidirectional die forging hydraulic press, has played the effect of cost reduction increase.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the scope of the present invention, which is defined in the appended claims.
Claims (5)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121685076.4U CN215620249U (en) | 2021-07-23 | 2021-07-23 | Rebar preloaded multi-directional die forging hydraulic press frame |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121685076.4U CN215620249U (en) | 2021-07-23 | 2021-07-23 | Rebar preloaded multi-directional die forging hydraulic press frame |
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| CN215620249U true CN215620249U (en) | 2022-01-25 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114632905A (en) * | 2022-02-14 | 2022-06-17 | 天津市天锻压力机有限公司 | Machine body structure applied to large-tonnage horizontal unilateral load of multidirectional die forging press |
-
2021
- 2021-07-23 CN CN202121685076.4U patent/CN215620249U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114632905A (en) * | 2022-02-14 | 2022-06-17 | 天津市天锻压力机有限公司 | Machine body structure applied to large-tonnage horizontal unilateral load of multidirectional die forging press |
| CN114632905B (en) * | 2022-02-14 | 2024-04-12 | 天津市天锻压力机有限公司 | Be applied to fuselage structure of multidirectional die forging press large-tonnage horizontal unilateral load |
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