Method for inserting steel strand into hydraulic lifting cylinder
By using the traction steel casing with an outer diameter matched with the steel strand and the end of the steel strand with sharp angles, the problem of the traditional hydraulic lift cylinder requiring multiple people to cooperate in the steel strand through the steel strand through the traditional hydraulic lift cylinder, achieving efficient and damage-free insertion Effects improve work efficiency.
Patent Information
- Application Number
- CN202411538725.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-31
- Publication Date
- 2025-01-07
AI Technical Summary
The traditional hydraulic lift cylinder needs three people to work together to penetrate steel stranded wire, which can easily cause cracks in the end of the steel stranded wire and damage to the clamping lock, which is inefficient.
The traction steel casing with the same outer diameter as the steel strand diameter is used. By polishing the end of the steel strand, the traction steel casing is pushed along the direction of the steel strand, and gradually penetrates the clamping hole of the hydraulic lift cylinder. .
It realizes fast and efficient interpolation of steel strands, reduces labor intensity, avoids damage to steel strands and clamps, and improves work efficiency.
Smart Images
Figure CN119263087A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of metallurgical engineering, and in particular to a method for inserting a steel strand into a hydraulic lifting cylinder. Background Art
[0002] In engineering projects, when installing large-scale factory building components and large equipment, under the conditions of site, space and crane load limitations, the steel strand hydraulic continuous lifting method is mostly used for hoisting. Before the steel strand hydraulic lifting cylinder is used, the corresponding steel strand must be inserted into the clamping hole of the hydraulic lifting cylinder according to the length, load size, inner diameter and number of the clamping holes of the hydraulic lifting cylinder (that is, insert the steel strand of corresponding diameter into dozens of clamping holes of the hydraulic lifting cylinder). In the conventional steel strand insertion and assembly operation, there is a certain spacing distance between the upper clamping hole of the lifting cylinder, the middle hydraulic cylinder and the lower clamping hole, and because the steel strand has a certain degree of softness, when the steel strand is inserted, when the steel strand passes through the lower clamping hole and is about to enter the middle hydraulic cylinder hole, there will be a jam at the end of the steel strand, and someone needs to transfer it before it can be inserted. When the steel strand passes through the middle hydraulic cylinder hole and enters the upper locking hole, it will encounter a jam again, and it needs to be transferred before it can enter the upper locking hole. Therefore, the traditional assembly operation of inserting steel strands into hydraulic lifting cylinders requires the joint efforts of three people. If the three people do not cooperate synchronously, it is easy to cause the end of the steel strand to crack and be unable to be inserted, and it will bump against the clamp and lock buckle, causing damage to the clamp and lock buckle. There are many disadvantages and low efficiency. Summary of the invention
[0003] In view of the above-mentioned problems, the present invention discloses a method for inserting a steel strand through a hydraulic lifting cylinder, so as to solve the problems in the prior art that the insertion of the steel strand through the hydraulic lifting cylinder requires the joint efforts of three people and is prone to cause cracking of the steel strand end and damage to the hydraulic lifting cylinder clamp lock.
[0004] A method for inserting a steel strand through a hydraulic lifting cylinder, comprising the following steps:
[0005] Step S1, providing a traction steel casing, wherein the outer diameter of the traction steel casing is the same as the diameter of the steel strand, and the wall thickness of the traction steel casing is 0.8-1.2 mm;
[0006] Step S2, grinding the insertion ends of each steel strand to be inserted into a sharp angle;
[0007] Step S3, placing the hydraulic lifting cylinder horizontally on the ground;
[0008] Step S4, inserting the middle portion of the traction steel casing into the steel strand through-hole of the hydraulic lifting cylinder;
[0009] Step S5, inserting an insertion end of the steel strand to be inserted into an end of the traction steel casing adjacent to the lower clamp locking hole of the hydraulic lifting cylinder;
[0010] Step S6, pushing the steel strand to be inserted to push the traction steel casing to move along the direction of the steel strand inserted into the steel strand through hole, until the insertion end of the steel strand to be inserted passes through the upper clamp lock hole of the hydraulic lifting cylinder to reach a predetermined length, and the insertion of the steel strand to be inserted is completed;
[0011] Step S7, repeating steps S4 to S6 until all the steel strands on the hydraulic lifting cylinder are inserted.
[0012] In some embodiments, the traction steel casing is formed by connecting at least two steel casings in sequence, and adjacent steel casings are connected together by threads.
[0013] In some of the embodiments, the traction steel casing is formed by connecting three steel casings in sequence, and the lengths of the three steel casings are equal.
[0014] In some of the embodiments, the traction steel casing is a galvanized steel pipe.
[0015] In some of the embodiments, in step S2, a grinding machine is used to grind the insertion end of each steel strand to be inserted into a sharp angle.
[0016] In some embodiments, step S4 is specifically:
[0017] One end of the traction steel casing is passed through the upper clamping hole of the hydraulic lifting cylinder into the middle hydraulic cylinder hole of the hydraulic lifting cylinder and out of the lower clamping hole of the hydraulic lifting cylinder, so that the middle part of the traction steel casing is passed through a steel strand through-hole of the hydraulic lifting cylinder.
[0018] In some of the embodiments, the exposed length of one end of the traction steel casing adjacent to the lower clamp locking hole of the hydraulic lifting cylinder is 50 to 150 mm.
[0019] In some of the embodiments, the exposed length of one end of the traction steel casing adjacent to the upper clamp lock hole of the hydraulic lifting cylinder is 250 to 350 mm.
[0020] In some of the embodiments, in step S6: one person holds the traction steel casing from one end of the traction steel casing adjacent to the upper clamp locking hole of the hydraulic lifting cylinder, and another person pushes the steel strand to be inserted.
[0021] In some embodiments, in step S6, the predetermined length is 2900-3100 mm.
[0022] Compared with the prior art, the above invention has at least one of the following advantages or beneficial effects:
[0023] The invention discloses a method for inserting a steel strand through a hydraulic lifting cylinder. A traction steel casing with an outer diameter the same as the diameter of the steel strand is adopted to cooperate with the steel strand to insert into the hydraulic lifting cylinder, thereby realizing fast and efficient insertion of the steel strand without damaging the steel strand and the clamping and locking buckle. This method not only overcomes the problem of low efficiency caused by the need for cooperation of multiple persons during the traditional insertion of the steel strand, but also reduces labor intensity, improves work efficiency, and avoids damage to the clamping and locking buckle. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] The present invention and its features, appearance and advantages will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings. The same reference numerals indicate the same parts in all the drawings. The drawings are not drawn to scale, and emphasis is placed on illustrating the subject matter of the present invention.
[0025] Figure 1 It is a schematic diagram of the structure of the traction steel casing in an embodiment of the present invention;
[0026] Figure 2 It is a structural schematic diagram of inserting a traction steel casing into a hydraulic lifting cylinder in an embodiment of the present invention;
[0027] Figure 3 Schematic diagram of the structure of the hydraulic lifting cylinder interlaced with steel strands in the embodiment of the present invention
[0028] Among them, 1 is a traction steel casing; 11 is a first steel casing; 12 is a second steel casing; 13 is a third steel casing; 2 is a hydraulic lifting cylinder; 21 is a lower clamp locking hole; 22 is an upper clamp locking hole; and 3 is a steel strand. DETAILED DESCRIPTION
[0029] The present invention is further described below with reference to the accompanying drawings and specific embodiments, but is not intended to be a limitation of the present invention.
[0030] This embodiment discloses a method for inserting a steel strand through a hydraulic lifting cylinder. Specifically, the method comprises the following steps:
[0031] Step S1, providing a traction steel casing 1, and the outer diameter of the traction steel casing 1 is the same as the diameter of the steel strand 3 (because the outer diameter of the steel strand 3 and the inner diameter of the clamping hole have a small gap, the difference between the two is no more than 1mm, so the outer diameter of the traction steel casing 1 is the same as the diameter of the steel strand 3), the wall thickness of the traction steel casing 1 is 0.8-1.2mm (for example, 0.8mm, 1mm, 1.1mm or 1.2mm, etc.); specifically, the traction steel casing 1 adopts a galvanized steel pipe with a diameter of ø18.5mm*wall thickness of 1mm, and the length of the traction steel casing 1 is 2400mm. In order to facilitate carrying, the traction steel casing 1 can be connected in sequence by a first steel casing 11, a second steel casing 12 and a third steel casing 13, and adjacent steel casings are connected together by threads. Specifically, the length of each steel casing is 800mm, and the traction steel casing 1 is divided into steel casings, so that the traction steel casing 1 is easy to carry and not easy to bend; Figure 1 The structure shown.
[0032] Step S2, grind the insertion ends of each steel strand 3 to be inserted into a sharp angle; that is, the end of the steel strand 3 to be inserted into the hydraulic lifting cylinder 2 is grinded with a grinding machine to ensure that one end of the steel strand 3 is grinded into a sharp angle to facilitate subsequent insertion into the traction steel casing 1.
[0033] Step S3, placing the hydraulic lifting cylinder 2 horizontally on the ground; under normal conditions, the hydraulic lifting cylinder 2 is placed vertically, so the hydraulic lifting cylinder 2 needs to be laid down and placed horizontally on the ground to facilitate subsequent operations.
[0034] Step S4, inserting the middle portion of the traction steel casing 1 into the steel strand penetration hole of the hydraulic lifting cylinder 2.
[0035] Specifically, Figure 2 As shown, one end of the traction steel casing 1 is passed through the upper clamp lock hole 22 of the hydraulic lifting cylinder 2 into the middle hydraulic cylinder hole of the hydraulic lifting cylinder 2 and out of the lower clamp lock hole 21 of the hydraulic lifting cylinder 2, so that the middle part of the traction steel casing 1 passes through a steel strand through-hole of the hydraulic lifting cylinder 2, and both ends of the traction steel casing 1 are located on the outside of the hydraulic lifting cylinder 2 (that is, the two ends of the traction steel casing 1 are respectively exposed from the two sides of the hydraulic lifting cylinder 2), and the exposed length of one end of the traction steel casing 1 adjacent to the lower clamp lock hole 21 of the hydraulic lifting cylinder 2 is 50 to 150 mm (for example, 50 mm, 60 mm, 100 mm or 150 mm, etc.) for subsequent operation; the exposed length of one end of the traction steel casing 1 adjacent to the upper clamp lock hole 22 of the hydraulic lifting cylinder 2 is 250 to 350 mm (for example, 250 mm, 300 mm, 310 mm or 350 mm, etc.) for subsequent operator hand-holding.
[0036] Step S5, insert the insertion end (i.e. the pointed end) of the steel strand 3 to be inserted into the end of the traction steel casing 1 adjacent to the lower clamping lock hole 21 of the hydraulic lifting cylinder 2, such as Figure 3 The structure shown.
[0037] Step S6, push the steel strand 3 to be inserted to push and pull the steel casing 1 along the direction of the steel strand insertion into the steel strand penetration hole, the steel strand 3 to be inserted will smoothly pass through the lower clamp lock hole 21, the middle hydraulic cylinder hole and the upper clamp lock hole 22 of the hydraulic lifting cylinder 2, until the insertion end of the steel strand 3 to be inserted passes through the upper clamp lock hole 22 of the hydraulic lifting cylinder 2 to reach about 3000mm, and the insertion of the steel strand 3 to be inserted is completed.
[0038] Specifically, two people are respectively located on both sides of the hydraulic lifting cylinder 2, one person holds the traction steel casing 1 from one end of the traction steel casing 1 adjacent to the upper clamp lock hole 22 of the hydraulic lifting cylinder 2, and the other person pushes the steel strand 3 to be inserted along the steel strand penetration direction.
[0039] Step S7, repeating steps S4 to S6 until all the steel strands 3 on the hydraulic lifting cylinder 2 are inserted, and the other steel strands 3 are also inserted in the same way.
[0040] Specifically, after the hydraulic lifting cylinder 2 is placed horizontally on the ground, one person stands at each end of the hydraulic lifting cylinder 2. One person first assembles and connects the three steel casings that form the traction steel casing 1 into a whole, and then passes the traction steel casing 1 along the upper clamping lock hole 22 of the hydraulic lifting cylinder 2 to the middle hydraulic cylinder hole and out of the lower clamping lock hole 21 until the lower clamping lock hole 21 is exposed to 50 to 150 mm. Then another person inserts the end of the steel strand 3 to be inserted that is polished into a sharp angle into the traction steel casing 1. At this time, two people cooperate with each other, one person holds the traction steel casing 1, and the other person holds the steel strand 3 to be inserted and pushes it forward, so that the steel strand 3 to be inserted and the traction steel casing 1 move simultaneously along the direction of the steel strand inserted into the steel strand perforation, and the steel strand 3 to be inserted will be smoothly inserted into the hydraulic lifting cylinder 2 until the steel strand 3 to be inserted passes through the upper clamp lock hole 22 of the hydraulic lifting cylinder 2 by about 3000mm. Other steel strands 3 are also inserted in the same way. Finally, all the steel strands 3 that need to be inserted are adjusted to be the same, and then the upper and lower clamp lock buckles are adjusted. At this time, the entire steel strand 3 insertion work is completed.
[0041] In summary, the present invention designs a traction steel casing to cooperate with the insertion of the steel strand, and the traction of the traction steel casing enables the steel strand to smoothly pass through the hydraulic lifting cylinder; the traditional steel strand insertion hydraulic lifting cylinder process is improved, the insertion efficiency of the steel strand is improved, and the labor intensity is reduced. The method can quickly and efficiently insert the steel strand without damaging the steel strand and the clamp lock buckle, which overcomes the problem that the traditional insertion of the steel strand requires the cooperation of multiple people and the difficulty of threading. It not only reduces the labor intensity, but also improves the work efficiency.
[0042] Those skilled in the art should understand that those skilled in the art can implement variations by combining the prior art and the above embodiments, which will not be described in detail here. Such variations do not affect the essential content of the present invention, and will not be described in detail here.
[0043] The above describes the preferred embodiments of the present invention. It should be understood that the present invention is not limited to the above-mentioned specific embodiments, and the devices and structures that are not described in detail should be understood to be implemented in a common manner in the art; any technician familiar with the art can use the above-disclosed methods and technical contents to make many possible changes and modifications to the technical solutions of the present invention without departing from the scope of the technical solutions of the present invention, or modify them into equivalent embodiments of equivalent changes, which does not affect the essential content of the present invention. Therefore, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solutions of the present invention are still within the scope of protection of the technical solutions of the present invention.
Claims
1. A method for inserting a steel strand into a hydraulic lifting cylinder, characterized in that: The steps include: Step S1, providing a traction steel casing, wherein the outer diameter of the traction steel casing is the same as the diameter of the steel strand, and the wall thickness of the traction steel casing is 0.8-1.2 mm; Step S2, grinding the insertion ends of each steel strand to be inserted into a sharp angle; Step S3, placing the hydraulic lifting cylinder horizontally on the ground; Step S4, inserting the middle portion of the traction steel casing into the steel strand through-hole of the hydraulic lifting cylinder; Step S5, inserting an insertion end of the steel strand to be inserted into an end of the traction steel casing adjacent to the lower clamp locking hole of the hydraulic lifting cylinder; Step S6, pushing the steel strand to be inserted to push the traction steel casing to move along the direction of the steel strand inserted into the steel strand through hole, until the insertion end of the steel strand to be inserted passes through the upper clamp lock hole of the hydraulic lifting cylinder to reach a predetermined length, and the insertion of the steel strand to be inserted is completed; Step S7, repeating steps S4 to S6 until all the steel strands on the hydraulic lifting cylinder are inserted.
2. The method for inserting a steel strand into a hydraulic lifting cylinder according to claim 1, characterized in that: The traction steel casing is formed by connecting at least two steel casings in sequence, and adjacent steel casings are connected together by threads.
3. The method for inserting a steel strand into a hydraulic lifting cylinder as claimed in claim 2, characterized in that: The traction steel casing is formed by connecting three steel casings in sequence, and the lengths of the three steel casings are equal.
4. The method for inserting a steel strand into a hydraulic lifting cylinder according to claim 1, characterized in that: The traction steel casing is made of galvanized steel pipe.
5. The method for inserting a steel strand into a hydraulic lifting cylinder according to claim 1, characterized in that: In step S2, the insertion end of each steel strand to be inserted is grinded into a sharp angle using a grinding machine.
6. The method for inserting a steel strand into a hydraulic lifting cylinder according to claim 1, characterized in that: The specific steps in step S4 are as follows: One end of the traction steel casing is passed through the upper clamping hole of the hydraulic lifting cylinder into the middle hydraulic cylinder hole of the hydraulic lifting cylinder and out of the lower clamping hole of the hydraulic lifting cylinder, so that the middle part of the traction steel casing is passed through a steel strand through-hole of the hydraulic lifting cylinder.
7. The method for inserting a steel strand into a hydraulic lifting cylinder as claimed in claim 5, characterized in that: The exposed length of one end of the traction steel casing adjacent to the lower clamping lock hole of the hydraulic lifting cylinder is 50 to 150 mm.
8. The method for inserting a steel strand into a hydraulic lifting cylinder as claimed in claim 5, characterized in that: The exposed length of one end of the traction steel casing adjacent to the upper clamping lock hole of the hydraulic lifting cylinder is 250-350 mm.
9. The method for inserting a steel strand into a hydraulic lifting cylinder according to claim 1, characterized in that: In step S6: one person holds the traction steel casing from one end of the traction steel casing adjacent to the upper clamp locking hole of the hydraulic lifting cylinder, and another person pushes the steel strand to be inserted.
10. The method for inserting a steel strand into a hydraulic lifting cylinder according to claim 1, characterized in that: In the step S6, the predetermined length is 2900-3100 mm.