Home API Product Qualification Quick Order Contact Us  
Chinese | English
 
Elevators
    Drill Pipe Elevator
    Casing Elevator
    Drill Collar Elevator
    Tubing Elevator
    Sucker Rod Elevator
    Slip-Type Elevator
    Single Joint Elevator
Links
    Elevator Link
    Perfection Link
Tongs
    Type B Manual Tong
    Type DB Manual Tong
    Type C Manual Tong
    Casing Tong
Slips
    Power Slip
    Manual Slip
Roller Kelly Bushing
 
Taixing Petroleum Machinery Co., Ltd.>>  Company News
 
 
  Rotary Slips design input and design output table
 

Design input

Design output

Rotary Slips
Product Name: Rotary Slips
Specifications: 3 1/2 ", 4", 4 1/2 ", 5 1/2" 5 "
Maximum Load: 2250kN, 3150kN (250t, 350t)

Assembly drawings: ZCW 3 1/2 · 250 · 00 Rotary Slips
ZCW 5 1/2 · 250 · 00 Rotary Slips
ZCW 4 1/2 ~ 5 1/2 · 250 · 00 Rotary Slips
ZCW 4 1/2 ~ 5 1/2 · 350 · 00 Rotary Slips

⑴ pin materials used 35CrMo,
⑵ Slip body material ZG35CrMo, its mechanical properties after heat in accordance with Table 1.
Table 1

Material category Tensile strength (Mpa) Yield Strength (Mpa) Elongation
%
rate of reduction in area% Impact energy J Quenched hardness HB
35CrMo 686 540 12 25 40 240~281

⑶ Slip tooth material is 20CrMo, shall comply with the provisions of GB / T 3077's. After the final heat treatment should
To achieve: a surface hardness of 58 ~ 62HRc, the depth of 0.8 ~ 1.2mm, the core hardness
34 ~ 44HRc. Metallographic examination by JB 1673 Microstructure of grade-level diagram assessed level of not less than 4. Slip tooth top width of not less than 0.2mm.

Spare: ZCW 5 · 350 · 07 of the hinge axis material is 35CrMo
Spare: ZCW 5 · 350 · 10 Slip the right material for the ZG35CrMo
Inspection procedures: ZCW2500-01-02 Page 3 heat treatment quenching hardness 240 ~ 281HB
ZCW2500-01-02 first four mechanical test
σb 740 MPa
σs 540 MPa
δ5 12%
ψ 25%
Aku 40J
Spare: ZCW 5 · 350 · 08 · 3 Dies technical requirement of Article 2: carburizing 58
~ 62HR, hardening depth of 0.8 ~ 1.2mm, core hardness 33 ~ 44HRc, metallurgical microstructure level is not less than 4 JB1673 regulations.
Incoming inspection procedures: ZCW2500-01-01
Surface hardness: 58 ~ 62HRc
Hardening depth of 0.8 ~ 1.2mm
Core hardness 33 ~ 44HRc
Metallurgical microstructure level is not less than 4 JB1673 regulations.

Slip back cone taper 1:3 (33.333cm / meter), angle is 9 ° 27'45 "± 2'30" Spare: ZCW 5 · 350 · 10 back cone 1:3 (9 ° 27'45 "± 2'30")
Inspection procedures: ZCW2500-01-02 page 10 to test the outer cone taper gauges and gauges to check tapered contact area should be greater than 65%
Slip and Slip equipped with tooth dimensions should be consistent with Table 2
Slip size code 3 1/2″ 5″
Slip tooth size  60.3 73 88.9 101.6 114.3 127
Maximum load (kN) 2250 2250、3150

Spare: ZCW 5 · 350 · 08 · 3 4 "dental plate
R50.8 (φ101.6)
ZCW 5 · 350 · 08 · 3 4 1/2 "dental plate
R57.15 (φ114.3)
Slip body according to the requirements of GB5677 radiographed to assess the result is not less than 3 Requirements

Incoming inspection procedures: requires the supplier to provide ray inspection reports

Slip assembly after each transmission parts should be flexible rotation, no jamming phenomenon.

Assembly process: ZCW2292-01 assembly step 17-2 Article 2
Left, middle and right body mutually rotating flexible without jamming.
First load test
⑴ early carrier added (30% of the rated load), check back with the tapered cone suites should be approached uniformly, the contact surface is not less than 65%.
⑵ added First load (30% of the rated load), check the teeth and string Slip Contact Teeth should be 85% of the total number of teeth, and the teeth marks evenly distributed.
Inspection procedures: ZCW2500-01-02 page 17
First load is applied after Slip back cone should be in contact with the cone suites uniform, the contact area of not less than 65%
First load is applied after Slip teeth and column number of teeth in contact should be at least 85%, and teeth marks evenly distributed.
Design Rating
The maximum load rating in kB in parentheses to the API specified maximum load rating tons (2000 lbs per ton) as the unit;
Ratings rated: 2250kN (250t), 3150kN (350t).
Assembly drawings: ZCW 3 1/2 · 250 · 00
ZCW 3 1/2 / 2250 (250) Rotary Slips

Nst yield strength design safety factor calculated in accordance with Table 3

Maximum load rating Yield strength design safety factor
Pmax ≤ 1350 3.00
1350 < Pmax ≤ 4500 3-0.75(Pmax-1350)/3150
Pmax > 4500 2.25

Type test program:

Maximum load rating Yield strength design safety factor
Pmax ≤ 1350 3.00
1350 < Pmax ≤ 4500 3-0.75(Pmax-1350)/3150
Pmax > 4500 2.25
Maximum test load calculation formula:
Pt = 0.8Pmax · ns but not less than 2 Pmax
Where Pt maximum test load kN
The maximum load rating kN Pmax calculated
ns yield strength design safety factor
Type test program: 2.3.3 The maximum test load is determined by the following formula:
Pt = 0.8Pmax · ns but not less than 2 Pmax
Where Pt maximum test load kN
The maximum load rating kN Pmax calculated
ns yield strength design safety factor
lowest temperature
Minimum operating ambient temperature Drilling slips used is 0 ° C.
Product Owner's Manual: the fourth largest in Article 1 strip
Minimum operating ambient temperature Drilling slips used is 0 ° C.
Measurement, test and calibration
Factory test
⑴ early load test shall be 3.2, and in accordance with the ⑴, ⑵ two provisions 3.2.
⑵ load to the rated load Check Slip body 1.5 fold back cone, horizontal ribs, undercuts, Slip teeth and coupling pins, etc. should be no damage, Slip tooth no chipping teeth, pin flexible rotation.
Process inspection: ZCW2500-01-02 page 17
First load test: Add First load after Slip back cone and the cone should be approached ensuite uniform, the contact area of not less than 65%; Slip teeth and column number of teeth in contact at least 85%.
⑵ load to the rated load Check Slip body 1.5 fold back cone, horizontal ribs, undercuts, Slip teeth and coupling pins, etc. should be no damage, Slip tooth no chipping teeth, pin flexible rotation.
Type Test
⑴ Slip through the maximum test load test, the maximum residual deformation measured shall not exceed 0.2% (2000με), with the test apparatus allows Slip contact region there are local residual deformation.
⑵ materials, structures, the same process, the same rated load, but the specification, different sizes Slip, should be close to the series of intermediate-sized elevator test, the test results are applicable to all of the elevators in the series.
⑶ when one of the following situations, which should elevator type test:
a) new product trial;
b) three years of normal production of the product;
C) After the normal production, structure, processes, materials when great change may affect product performance;
D) After the product long-term shutdown, resumed production;
e) factory inspection results are quite different with the previous test results;
f) the national quality supervision agency when requested.
Type test program:
Section 2.3.2.1 through maximum test load test, the maximum residual deformation measured shall not exceed 0.2% (2000με), with the test apparatus allows Slip contact region there are local residual deformation.
Slip 2.3.5 maximum test load test in 3150kN, 2250kN load two kinds of series
The Slip select one size Slip type testing.
2.3.8 When one of the following situations, which should elevator type test:
a) new product trial;
b) three years of normal production of the product;
C) After the normal production, structure, processes, materials when great change may affect product performance;
D) After the product long-term shutdown, resumed production;
e) factory inspection results are quite different with the previous test results;
f) the national quality supervision agency when requested.
Test Fixture
Test fixture to simulate the working conditions, the sleeve in loaded Slip, Slip clamp simulation column of the pressure tube.

Inspection procedures: ZCW2500-01-02 left page 17

Test Equipment
Pressure testing machine calibration once a year, it can be a Class A calibration equipment calibration, and the error is less than 2.5%.
Strain Gauge error is less than 1%.
Type test program: press YE-1000 error is less than equal to 2.0%
YJ-25 strain gauges accuracy of 1%
Test Procedure
⑴ Slip cone in the back, ribs attached strain gauges for testing.
⑵ by the maximum test load test Slip pin should be flexible switch, without jamming.
Type test program: The first four test methods and procedures:
4.1 should be reviewed before the trial Slip various dimensions, opening and closing the case;
4.2 patch method strain gauge;
4.3 Test loader.

Measuring tools subject to inspection, and regular weekly check.

Gage Management System

personnel
⑴ magnetic particle inspection personnel must obtain the national qualification certificates.
⑵ factory test, type test and mechanical performance testing must obtain provincial (city) level and above qualifications.
⑶ personnel for visual visual examination, uncorrected visual acuity of 5.1.
Process scheme: ZCW0200-01
Article 5 persons: 1 mechanical property test qualification provincial (city) level
2. Magnetic abrasions qualification provincial (city) level
3. factory test, type test qualification provincial (city) level
test
⑴ Incoming Inspection: incoming inspection according to both supply and demand for the contract, the national standard, outsourcing, the Association of acceptance of technical conditions, and incoming inspection records. The supplier shall provide the quality certificate or certificate.
⑵ process inspection: Product inspection parts processing entire process of implementation.
⑶ final inspection: product testing, paints, packaging, labeling inspection.
Inspection procedures:
Incoming Inspection ZCW 2500-01-01
Process inspection ZCW 2500-01-02
Final inspection ZCW2500-01-03
Packaging, storage
paint
After the pressure test assembly, non-processing surface first coated with iron red rust primer coat in orange paint reconcile, processing coated anti-rust oil.
Final inspection procedures: ZCW2500-01-03 page 2
Paint: orange
package
Product packaging with wooden box packaging. And a moisture-proof measures.
Final inspection procedures: ZCW2500-01-03 page 4
Moisture-proof packaging wooden box no mildew, broken.
Mark
⑴ product identification:
In obvious location for permanent identification, identify the content: the production license number, manufacturer name or trademark, product number, date of manufacture. According to API Spec 7K and API Spec Q1 production monogrammed products, it should also be identified Elevators tag, API license number, monogram.
⑵ Packing boxes
The outer surface of the wooden box marked product name, type, size, manufacturer's name, gross (or net) and wooden box dimensions (length × width × height).
Final inspection procedures: ZCW2500-01-03 Page 3
Check trademarks, product models, specifications, product number, date of manufacture.
Playing at the specified location drawing API and API monogram license number.
Final inspection procedures: ZCW2500-01-03 page 4
Product name, size, type, manufacturer name and production date, product number, size packaging size and weight.
 
 
  (C)2012 Taixing Petroleum Machinery Co., Ltd. All rights reserved
Zip Code:225400 │ E-mail:drillingtool@163.com