CN101862932A - Welding tool for assembling electric hoist roller stand - Google Patents
Welding tool for assembling electric hoist roller stand Download PDFInfo
- Publication number
- CN101862932A CN101862932A CN 201010227286 CN201010227286A CN101862932A CN 101862932 A CN101862932 A CN 101862932A CN 201010227286 CN201010227286 CN 201010227286 CN 201010227286 A CN201010227286 A CN 201010227286A CN 101862932 A CN101862932 A CN 101862932A
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- tailstock
- bearing
- supporting mechanism
- gripper shoe
- plate
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Abstract
The invention relates to a welding tool for assembling an electric hoist roller stand. The welding tool is characterized by comprising a bed body, a bed body guide rail, a spindle box, a lead screw, a carriage, and a tailstock device, wherein the lead screw is connected with the spindle box; the carriage is arranged on the lead screw; the tailstock device is connected with the carriage; the tailstock device and a tailstock hook plate are arranged on the bed body guide rail through a tailstock connecting plate; a bearing side supporting mechanism is arranged on a headstock disc of the spindle box through a locking nut, a locking disc, and a connecting shaft; the bearing side supporting mechanism corresponds to a positioning device on the bed body guide rail on the lower part of the bearing side supporting mechanism; a reducer side supporting mechanism is arranged on the tailstock device through a locking nut, a locking disc, and a connecting shaft; and a positioning device is arranged on the tailstock device corresponding to the upper part of the reducer side supporting mechanism. Therefore, the spindle box can drive a workpiece to rotate during assembly, each welding surface of the workpiece is made at a downward welding position, the concentricity of a bearing side supporting plate and a reducer side supporting plate on two sides of the electric hoist roll stand is ensured, the welding quality is improved, the labor intensity of the operator is greatly reduced simultaneously, the operation safety is guaranteed, and the production cost is saved.
Description
Technical field
The invention belongs to crane manufacturing technology field, particularly a kind of welding tooling that is used for assembling electric hoist roller stand.
Background technology
The roller stand device is considerable parts in the electric block product, it is the parts that connect motor reducer, reel, electric appliance box and running trolley, it is a rectangle lead frame, link together by the decelerator side bearing plate and the bearing side bearing plate of crossbeam assembling with both sides, the assembly precision of roller stand directly influences the quality of whole electric block.For fear of using the large scale computer process equipment, reduce the postwelding machined, reduce production costs, the machined of each part part is all finished before weldering on the roller stand, therefore how to guarantee the concentric of roller stand device two end supports plate, reduce whole post welding distortion, just become anxious problem to be solved.The AS electric block has 5 kinds of series substantially at present, 4 kinds of subseries, lifting capacity is 0.32～50t, lifting altitude is 3.5～120m, so large-scale lifting altitude, determined the corresponding increase of length range of roller stand device, the roller stand length range of an AS2～AS5 series just by 465mm to 1766mm, this has just more increased the production difficulty of these parts.
Summary of the invention
The present invention for solve the technical problem that exists in the known technology provide a kind of assembly precision height, easy and simple to handle, stability is strong, safety coefficient is high, the welding tooling that is used for assembling electric hoist roller stand that can reduce operator's labour intensity greatly.
The technical scheme that the present invention takes for the technical problem that exists in the solution known technology is: a kind of welding tooling that is used for assembling electric hoist roller stand, it is characterized in that: this welding tooling comprises lathe bed, bed ways, main spindle box, the leading screw that is connected with main spindle box, the tailstock device that is installed in slip crate on the leading screw and is connected with slip crate, the tailstock device is installed on the bed ways by tailstock connecting plate and tailstock hook plate, pass through locking nut on the headstock dish of described main spindle box, locking plate and connecting axle are equipped with bearing side supporting mechanism, positioner on the below bed ways of corresponding bearing side supporting mechanism, described tailstock device passes through locking nut, locking plate and connecting axle are equipped with decelerator side supporting mechanism, and the top tailstock device of corresponding decelerator side supporting mechanism is provided with positioner.
The present invention can also adopt following technical scheme: described tailstock device comprises the housing that is connected with slip crate, bearing block is installed on the housing, spring bearing is installed in the bearing block, spring bearing supports the tailstock main shaft, the main shaft of tailstock main shaft and main spindle box is positioned on the same axis, the end mounted tailstock terminal pad of tailstock main shaft.
Described bearing side supporting mechanism comprises the terminal pad that is connected with main spindle box headstock dish, by securing member connector is installed on the terminal pad, pass through securing member installation side gripper shoe on the connector, both sides, lower end in the side gripper shoe are arranged with pressing plate by hold-down bolt, the outside of side gripper shoe is provided with supporting pad, supporting pad is connected by bearing pin with the side gripper shoe, the outside of supporting pad is provided with circular pressing plate, circular pressing plate is connected with bearing pin by hold-down bolt, the lower surface of side gripper shoe is provided with the positioning seat that is connected with positioner, and positioning seat is provided with locating hole.
Described side gripper shoe also is provided with alignment pin and locating piece.
The positioner of described installation bearing side supporting mechanism side comprises fixed mount, and fixed mount is installed on the fuselage guide rail by connecting plate and hook plate, and positioning sleeve is installed in the upper end of fixed mount, and shop bolt is installed in the positioning sleeve.
Described decelerator side supporting mechanism comprises the terminal pad that is connected with the tailstock terminal pad, pass through securing member installation side gripper shoe on the terminal pad, bracing ring and back-up block are installed by securing member in the outside of side gripper shoe, pressing plate is installed by hold-down bolt in the outside of bracing ring, the both sides, lower end of terminal pad are symmetrically installed with pressing plate by hold-down bolt, the securing member erection support is passed through in upper end in the side gripper shoe, bearing is provided with and the corresponding locating hole of tailstock device top positioner, also is provided with alignment pin on the described side gripper shoe.
On the described back-up block alignment pin is installed.
The described positioner that is installed in tailstock device top comprises the horizontal installing plate that is installed in tailstock device upper end, and positioning sleeve is installed in the end of horizontal installing plate, and shop bolt is installed in the positioning sleeve.
Be equipped with regulating tank on described two locking plates, not isometrical arc structure is adopted at the two ends of described regulating tank.
The two ends of described two connecting axles are threaded portion, and an end is connected with terminal pad, and an end passes locking plate, pass the equipped locking nut of locking plate end, and the middle part of connecting axle is an optical axis, and optical axis passes the headstock dish.
Advantage and good effect that the present invention has are: because the present invention adopts technique scheme, utilize the engine lathe design principle, make full use of lathe rigidity foot, bed ways move steadily, the latching characteristics of slip crate leading screw, but characteristics such as Lathe Spindle Box electric turnover cooperate this frock bearing side gripper shoe mechanism, decelerator side gripper shoe mechanism, tailstock device and positioner, and the length range that satisfies the different series electric block is by the roller stand installation accuracy of 465mm to 1766mm.This frock can drive the workpiece upset by main spindle box when assembling, realize that each solder side of workpiece is the downhand position, the bearing side gripper shoe and the decelerator gripper shoe that guarantee the electric hoist roller stand both sides are concentric, improve welding quality, greatly reduce operator's labour intensity simultaneously, guarantee the security of operation, saved production cost.
Description of drawings
Fig. 1 is a structural representation of the present invention; Fig. 2 be among Fig. 1 A to view; Fig. 3 is a bearing side supporting mechanism structural representation; Fig. 4 is an A-A cutaway view among Fig. 3; Fig. 5 is a B-B cutaway view among Fig. 3; Fig. 6 is a C-C cutaway view among Fig. 3; Fig. 7 be among Fig. 1 B to view; Fig. 8 is a decelerator side supporting mechanism structural representation; Fig. 9 is an A-A cutaway view among Fig. 8; Figure 10 is a B-B cutaway view among Fig. 8; Figure 11 is a C-C cutaway view among Fig. 8; Figure 12 is a tailstock apparatus structure schematic diagram; Figure 13 is the locking plate structural representation.
Among the figure: 1, lathe bed; 2, bed ways; 3, main spindle box; 3-1, main shaft; 3-2, headstock dish; 3-3, locking nut; 3-4, connecting axle; 3-5, locking plate; 4, leading screw; 5, slip crate; 6, tailstock device; 6-1, housing; 6-2, bearing block; 6-3, spring bearing; 6-4, tailstock main shaft; 6-5, tailstock terminal pad; 7, tailstock connecting plate; 8, tailstock hook plate; 9, bearing side supporting mechanism; 9-1, terminal pad; 9-2, bolt; 9-3, connector; 9-4, bolt; 9-5, side gripper shoe; 9-6, pressing plate; 9-7, supporting pad; 9-8, bearing pin; 9-9, hold-down bolt; 9-10, positioning seat; 9-10-1, locating hole; 9-11, alignment pin; 9-12, locating piece; 9-13, circular pressing plate; 9-14, clamp nut; 10, positioner; 10-1, fixed mount; 10-2, connecting plate; 10-3, hook plate; 10-4, positioning sleeve; 10-5, shop bolt; 11, decelerator side supporting mechanism; 11-1, locking nut; 11-2, terminal pad; 11-3, bolt; 11-4, side gripper shoe; 11-5, bolt; 11-6, bracing ring; 11-7, back-up block; 11-8, clamp nut; 11-9, pressing plate; 11-10, clamp nut; 11-11, pressing plate; 11-12, bolt; 11-13, bearing; 11-13-1, locating hole; 11-14, alignment pin; 11-15, alignment pin; 11-16, connecting axle; 11-17, locking plate; 12, positioner; 12-1, horizontal installing plate; 12-2, positioning sleeve; 12-3, shop bolt; 13, roller stand.
The specific embodiment
For further understanding summary of the invention of the present invention, characteristics and effect, exemplify following examples now, and conjunction with figs. is described in detail as follows: see also Fig. 1, Fig. 2 and Fig. 7; A kind of welding tooling that is used for assembling electric hoist roller stand, comprise lathe bed 1, bed ways 2, main spindle box 3, the leading screw 4 that is connected with main spindle box 3, the tailstock device 6 that is installed in slip crate 5 on the leading screw 4 and is connected with slip crate 5, tailstock device 6 is installed on the bed ways 2 by tailstock connecting plate 7 and tailstock hook plate 8, the headstock dish 3-2 of described main spindle box goes up by locking nut 3-3, locking plate 3-5 and connecting axle 3-4 are equipped with bearing side supporting mechanism 9, positioner 10 on the below bed ways 2 of corresponding bearing side supporting mechanism 9, described tailstock device passes through locking nut, locking plate and connecting axle are equipped with decelerator side supporting mechanism 11, and the top tailstock device 6 of corresponding decelerator side supporting mechanism 11 is provided with positioner 12.
See also Figure 12, described tailstock device 6 comprises the housing 6-1 that is connected with slip crate 5, bearing block 6-2 is installed on the housing 6-1, spring bearing 6-3 is installed in the bearing block 6-2, spring bearing 6-3 supports tailstock main shaft 6-4, the main shaft 3-1 of tailstock main shaft 6-4 and main spindle box 3 is positioned on the same axis, the end mounted tailstock terminal pad 6-5 of tailstock main shaft 6-4.
In the said structure, the tailstock device guarantees that through accurate machined tailstock main shaft 6-4 is coaxial with the main shaft 3-1 of main spindle box, guarantees the bearing side supporting mechanism 9 at two ends and the axiality between the decelerator side supporting mechanism 11 thus.Because tailstock device 6 is installed on the slip crate 5, therefore driving slip crate can drive tailstock device 6 and move along bed ways 2, adjust the spacing of bearing side bearing plate and decelerator side bearing plate, realize the assembling of each serial roller stand of electric block, the acting in conjunction of colluding plate 8 because of tailstock connecting plate 7 and tailstock again can guarantee that tailstock device 6 moves to guarantee simultaneously that steadily it is all coaxial with main spindle box on each position.Slip crate 5 is to adopt leading screw 4 to drive, and because of leading screw 4 has the characteristic of self-locking, can guarantee that tailstock device 6 is non-slip in the course of the work, guarantees the installation accuracy of workpiece.
See also Fig. 2 to Fig. 6, described bearing side supporting mechanism 9 comprises the terminal pad 9-1 that is connected with main spindle box headstock dish 3-2, terminal pad 9-1 goes up by fastener bolt 9-2 connector 9-3 is installed, connector 9-3 goes up by fastening bolt 9-4 installation side gripper shoe 9-5, both sides, lower end at side gripper shoe 9-5 are arranged with pressing plate 9-6 by clamp nut 9-14, the outside of side gripper shoe 9-5 is provided with supporting pad 9-7, supporting pad 9-7 is connected by bearing pin 9-8 with side gripper shoe 9-5, the outside of supporting pad 9-7 is provided with circular pressing plate 9-13, circular pressing plate 9-13 is connected with bearing pin 9-8 by hold-down bolt 9-9, the lower surface of side gripper shoe 9-5 is provided with the positioning seat 9-10 that is connected with positioner 10, and positioning seat 9-10 is provided with locating hole 9-10-1; Described side gripper shoe 9-5 also is provided with alignment pin 9-11 and locating piece 9-12.Be connected by the articulation hole on the bearing side bearing plate of alignment pin 9-11 and processed roller stand 13, realize the accurate location of workpiece, and can limit workpiece moving along Y-axis and Z axle; By support pads 9-7 and locating piece 9-12, the restriction workpiece moves along X-axis; By circular pressing plate 9-8 and pressing plate 9-6, the rotation of restriction workpiece Y-axis and Z axle, and realize reliable grip; Cooperate with positioning seat 9-10 on being installed on side bearing plate 9-5 by the positioner 10 that is installed on the bed ways 2, the restriction workpiece is along the rotation of X-axis.Because the special construction of locking plate 3-5 and connecting axle 3-4 sees also Figure 13, promptly be equipped with regulating tank 3-5-1 on locking plate 3-5 in the said structure, not isometrical arc structure is adopted at the two ends of regulating tank; The two ends of described connecting axle 3-4 are threaded portion, one end is connected with terminal pad 9-1, one end passes locking plate 3-5, pass the equipped locking nut 3-3 of locking plate end, the middle part of connecting axle 3-4 is an optical axis, optical axis passes the headstock dish, when connecting axle rotates to the path arc end, lock by locking nut, when rotating at rotating shaft greatly through end, be implemented under the situation of not dismantling connecting axle and locking nut bearing side gripper shoe mechanism integral demounting is changed, alleviated the difficulty that the workman changes frock.
See also Fig. 1 and Fig. 2, the positioner 10 of described installation bearing side supporting mechanism 9 sides comprises fixed mount 10-1, fixed mount 10-1 is installed on the fuselage guide rail 2 by connecting plate 10-2 and hook plate 10-3, positioning sleeve 10-4 is installed in the upper end of fixed mount 10-1, shop bolt 10-5 is installed in the positioning sleeve 10-4, and shop bolt 10-5 is inserted in the locating hole 9-10-1 on the positioning seat 9-10.
See also Fig. 7 to Figure 11, described decelerator side supporting mechanism 11 comprises the terminal pad 11-2 that is connected with tailstock terminal pad 6-5 by locking nut 11-1, locking plate 11-17 and connecting axle 11-16, terminal pad 11-2 goes up by fastener bolt 11-3 installation side gripper shoe 11-4, bracing ring 11-6 and back-up block 11-7 are installed by fastener bolt 11-5 in the outside of side gripper shoe 11-4, and alignment pin 11-15 is installed on back-up block 11-7.Pressing plate 11-9 is installed by clamp nut 11-8 in the outside of bracing ring 11-6, the both sides, lower end of terminal pad 11-4 are symmetrically installed with pressing plate 11-11 by clamp nut 11-10, fastener bolt 11-12 erection support 11-13 is passed through in upper end at side gripper shoe 11-4, bearing 11-13 is provided with and the corresponding locating hole 11-13-1 of tailstock device 6 top positioners 12, also is provided with alignment pin 11-14 on the described side gripper shoe 11-3.The described positioner 12 that is installed in tailstock device 6 tops comprises the horizontal installing plate 12-1 that is installed in tailstock device 6 upper ends, positioning sleeve 12-2 is installed in the end of horizontal installing plate 12-1, shop bolt 12-3 is installed in the positioning sleeve 12-2, and shop bolt 12-3 is inserted in the locating hole 11-13-1 on the bearing 11-13.Be connected with the articulation hole of processed decelerator side bearing plate by alignment pin 11-14, realize the accurate location of workpiece, and can limit workpiece moving along Y-axis and Z axle; By back-up block 11-7 and bracing ring 11-6, the restriction workpiece moves along X-axis; By pressing plate 11-9 and pressing plate 11-11, the rotation of restriction workpiece Y-axis and Z axle, and realize reliable grip; Cooperate with bearing 11-13 on being installed on side bearing plate 11-4 by the positioner 12 that is installed on the tailstock device, the restriction workpiece is along the rotation of X-axis.The principle that dismounting decelerator side supporting mechanism is adopted is consistent with above-mentioned dismounting bearing side supporting mechanism.
The present invention utilizes the design principle of engine lathe, drives the workpiece upset by main spindle box when assembling, realizes that each solder side of workpiece is the downhand position, improve welding quality, greatly reduce operator's labour intensity simultaneously, guarantee the security of operation, saved production cost.
Claims (10)
1. welding tooling that is used for assembling electric hoist roller stand, it is characterized in that: this welding tooling comprises lathe bed, bed ways, main spindle box, the leading screw that is connected with main spindle box, the tailstock device that is installed in slip crate on the leading screw and is connected with slip crate, the tailstock device is installed on the bed ways by tailstock connecting plate and tailstock hook plate, pass through locking nut on the headstock dish of described main spindle box, locking plate and connecting axle are equipped with bearing side supporting mechanism, positioner on the below bed ways of corresponding bearing side supporting mechanism, described tailstock device passes through locking nut, locking plate and connecting axle are equipped with decelerator side supporting mechanism, and the top tailstock device of corresponding decelerator side supporting mechanism is provided with positioner.
2. the welding tooling that is used for assembling electric hoist roller stand according to claim 1, it is characterized in that: described tailstock device comprises the housing that is connected with slip crate, bearing block is installed on the housing, spring bearing is installed in the bearing block, spring bearing supports the tailstock main shaft, the main shaft of tailstock main shaft and main spindle box is positioned on the same axis, the end mounted tailstock terminal pad of tailstock main shaft.
3. the welding tooling that is used for assembling electric hoist roller stand according to claim 1, it is characterized in that: described bearing side supporting mechanism comprises the terminal pad that is connected with main spindle box headstock dish, by securing member connector is installed on the terminal pad, pass through securing member installation side gripper shoe on the connector, both sides, lower end in the side gripper shoe are arranged with pressing plate by hold-down bolt, the outside of side gripper shoe is provided with supporting pad, supporting pad is connected by bearing pin with the side gripper shoe, the outside of supporting pad is provided with circular pressing plate, circular pressing plate is connected with bearing pin by hold-down bolt, the lower surface of side gripper shoe is provided with the positioning seat that is connected with positioner, and positioning seat is provided with locating hole.
4. the welding tooling that is used for assembling electric hoist roller stand according to claim 3 is characterized in that: described side gripper shoe also is provided with alignment pin and locating piece.
5. the welding tooling that is used for assembling electric hoist roller stand according to claim 1, it is characterized in that: the positioner of described installation bearing side supporting mechanism side comprises fixed mount, fixed mount is installed on the fuselage guide rail by connecting plate and hook plate, positioning sleeve is installed in the upper end of fixed mount, and shop bolt is installed in the positioning sleeve.
6. the welding tooling that is used for assembling electric hoist roller stand according to claim 1, it is characterized in that: described decelerator side supporting mechanism comprises the terminal pad that is connected with the tailstock terminal pad, pass through securing member installation side gripper shoe on the terminal pad, bracing ring and back-up block are installed by securing member in the outside of side gripper shoe, pressing plate is installed by hold-down bolt in the outside of bracing ring, the both sides, lower end of terminal pad are symmetrically installed with pressing plate by hold-down bolt, the securing member erection support is passed through in upper end in the side gripper shoe, bearing is provided with and the corresponding locating hole of tailstock device top positioner, also is provided with alignment pin on the described side gripper shoe.
7. the welding tooling that is used for assembling electric hoist roller stand according to claim 6 is characterized in that: on the described back-up block alignment pin is installed.
8. the welding tooling that is used for assembling electric hoist roller stand according to claim 1, it is characterized in that: the described positioner that is installed in tailstock device top comprises the horizontal installing plate that is installed in tailstock device upper end, positioning sleeve is installed in the end of horizontal installing plate, and shop bolt is installed in the positioning sleeve.
9. the welding tooling that is used for assembling electric hoist roller stand according to claim 1 is characterized in that: be equipped with regulating tank on described two locking plates, not isometrical arc structure is adopted at the two ends of described regulating tank.
10. the welding tooling that is used for assembling electric hoist roller stand according to claim 1, it is characterized in that: the two ends of described two connecting axles are threaded portion, one end is connected with terminal pad, one end passes locking plate, pass the equipped locking nut of locking plate end, the middle part of connecting axle is an optical axis, and optical axis passes the headstock dish.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010227286 CN101862932B (en) | 2010-07-15 | 2010-07-15 | Welding tool for assembling electric hoist roller stand |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010227286 CN101862932B (en) | 2010-07-15 | 2010-07-15 | Welding tool for assembling electric hoist roller stand |
Publications (2)
| Publication Number | Publication Date |
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| CN101862932A true CN101862932A (en) | 2010-10-20 |
| CN101862932B CN101862932B (en) | 2013-01-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010227286 Expired - Fee Related CN101862932B (en) | 2010-07-15 | 2010-07-15 | Welding tool for assembling electric hoist roller stand |
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| CN (1) | CN101862932B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104014966A (en) * | 2014-06-06 | 2014-09-03 | 重庆吉替起重设备有限公司 | Mounting support assembly tool |
| CN107745220A (en) * | 2017-10-17 | 2018-03-02 | 广东骏驰科技股份有限公司 | A kind of rotating device for auto parts and components positioning welding |
| CN108465969A (en) * | 2018-06-05 | 2018-08-31 | 法兰泰克重工股份有限公司 | A kind of device of the adjustable welding of the hoist roller holder support plate assembly total space |
| CN108622629A (en) * | 2018-05-30 | 2018-10-09 | 中国联合工程有限公司 | A kind of transplanting positioning tool |
| CN108622629B (en) * | 2018-05-30 | 2024-04-23 | 中国联合工程有限公司 | Transplanting positioning tool |
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| CN201023176Y (en) * | 2007-05-10 | 2008-02-20 | 江阴市液压油管有限公司 | Oil pipe double-gun ring seam automatic welding machine |
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| CN201711713U (en) * | 2010-07-15 | 2011-01-19 | 天津起重设备有限公司 | Welding tool used for assembling winding drum support of electric hoist |
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| CN2165948Y (en) * | 1993-09-03 | 1994-05-25 | 李学廉 | Special machine tool for processing flat secondary ring surface enveloping worm |
| CN1483550A (en) * | 2002-09-20 | 2004-03-24 | 李瑞茂 | Multi-function machine-tool |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104014966A (en) * | 2014-06-06 | 2014-09-03 | 重庆吉替起重设备有限公司 | Mounting support assembly tool |
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| CN107745220A (en) * | 2017-10-17 | 2018-03-02 | 广东骏驰科技股份有限公司 | A kind of rotating device for auto parts and components positioning welding |
| CN108622629A (en) * | 2018-05-30 | 2018-10-09 | 中国联合工程有限公司 | A kind of transplanting positioning tool |
| CN108622629B (en) * | 2018-05-30 | 2024-04-23 | 中国联合工程有限公司 | Transplanting positioning tool |
| CN108465969A (en) * | 2018-06-05 | 2018-08-31 | 法兰泰克重工股份有限公司 | A kind of device of the adjustable welding of the hoist roller holder support plate assembly total space |
| CN108465969B (en) * | 2018-06-05 | 2024-01-26 | 法兰泰克重工股份有限公司 | Full-space adjustable welding device for assembling support plate of crane drum support |
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| Publication number | Publication date |
|---|---|
| CN101862932B (en) | 2013-01-02 |
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Inventor after: Wang Lijun Inventor before: Tian Yingxin |
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Effective date of registration: 20170918 Address after: 075000, No. 1, row 1, East dormitory, Worker Village, Qiaodong District, Hebei, Zhangjiakou Patentee after: Wang Lijun Address before: 300381 Tianjin Nankai District City West Binshui Road No. 333 Marriott building C block 11 layer Patentee before: Tianjin Hoisting Equipment Co., Ltd. |
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Granted publication date: 20130102 Termination date: 20180715 |