CN101823667A - Safety clamping device for portal crane - Google Patents
Safety clamping device for portal crane Download PDFInfo
- Publication number
- CN101823667A CN101823667A CN200910096574A CN200910096574A CN101823667A CN 101823667 A CN101823667 A CN 101823667A CN 200910096574 A CN200910096574 A CN 200910096574A CN 200910096574 A CN200910096574 A CN 200910096574A CN 101823667 A CN101823667 A CN 101823667A
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- rail car
- folder rail
- jig arm
- sides
- track
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Abstract
The invention relates to a safety clamping device for a portal crane, which comprises the oil cylinder (1) of a hydraulic lifting shaft (11). The safety clamping device is characterized by also comprising connecting rods (8), clamping arms (2) and a rail clamping vehicle (3), wherein two clamping arms (2) are arranged at both sides of the rail clamping vehicle (3) in a lever type; the number of the connecting rods is two, and one end of each connecting rod can be movably and mutually connected together with the upper end of the hydraulic lifting shaft (11) by a pin shaft (12), and the other end thereof is movably connected together with the upper end (22) of the corresponding clamping arm (2); the lower end surfaces (21) of the clamping arms are located at the positions of the two side surfaces of a rail (5) after being bent; and the rail clamping vehicle (3) and a crane trolley are fixedly connected together. Compared with the prior art, the invention has the advantages that when unforeseen circumstances happen, such as gusts suddenly come and the like, the clamping device can fix the rail clamping vehicle on the rail, whereas the rail clamping vehicle and the crane trolley are fixed together, and therefore, the crane trolley is fixed on the rail and is kept still while the rail clamping vehicle is fixed, and thereby, good safety protection effect is taken.
Description
Technical field
The present invention relates to a kind of safety clamping device that is used for transfer crane.
Background technology
The Chinese utility model patent that existing a kind of patent No. is a CN200420086474.4 title " hydraulic holding fixture of lathe " discloses a kind of structure, the hydraulic holding fixture of this lathe is arranged at the headstock place of lathe, comprise main shaft, chuck and trombone slide, chuck and trombone slide are fixed together, be loaded in the main shaft, trombone slide is in the end of main shaft, the other end of main shaft is equipped with a hydraulic actuating cylinder, piston is arranged in the hydraulic actuating cylinder, piston and trombone slide are connected, and a mandrel passes piston, and two through holes are arranged in mandrel vertically, the inner orifice of these two through holes communicates with the hydraulic actuating cylinder cavity of piston both sides respectively, and the outer aperture of through hole is connected on the hydraulic tubing.This fixing device is owing to realize clamping to workpiece by hydraulic principle, thus easy to operate, work efficiency is high, gripping power is big, and can make the good working accuracy of lathe maintenance, thus prolong its service life.But its shortcoming is to make the safe binding clasp of crane trolley.Up to this point also do not find, when meeting something unexpected happened (arriving), can play the device of good protection effect the safety of crane trolley as fitful wind.
Summary of the invention
Technical matters to be solved by this invention is to provide a kind of safety clamping device that is used for transfer crane ingenious, easy to use and that safety guard-safeguard is effective that designs at above-mentioned prior art present situation.
The present invention solves the problems of the technologies described above the technical scheme that is adopted: the safety clamping device that originally is used for transfer crane, include the oil cylinder of hydraulic lifting axle, it is characterized in that: described safety clamping device also includes connecting rod, jig arm, folder rail car, described folder rail car can place on the track back and forth glidingly, and described jig arm is two and is arranged on the folder rail car both sides with lever, and described connecting rod is two, an end separately of these two connecting rods and the upper end of hydraulic lifting axle interconnect movably by bearing pin, and the other end of two connecting rods links together versatilely with the upper end of corresponding jig arm separately respectively, and the lower surface of jig arm extends to below that presss from both sides the rail car and the position, two sides that is positioned at track after bending respectively, and drive by the hydraulic lifting axle between the lower surface of jig arm and the track side surfaces and realizes clamping or unclamp cooperating, described folder rail car and crane trolley are fixed together.
As improvement, described jig arm with the structure choice that lever is arranged on the folder rail car both sides is: be horizontally arranged with connecting panel respectively on folder rail car two sides, one end of this connecting panel is fixed on the folder rail car, and the other end is rotatably connected to jig arm by pivot pin, makes like this that jig arm can play better, clamping action more flexibly.
Improve, described jig arm is preferably on the both sides that are arranged at folder rail car symmetrically, makes clamping more firm again.
Improve again, an end separately of described two connecting rods and the upper end of hydraulic lifting axle are by the mutual movably tandem arrangement of same bearing pin together, the upper end of two connecting rods and hydraulic lifting axle links together versatilely by bearing and pivot pin, with the power of reducing friction, makes activity more flexible.
Improve described oil cylinder and supporting the linking together of oil pump power pack that is arranged on the folder rail car again.
Improve, described folder rail car can place the structure choice on the track to be back and forth glidingly: described folder rail car can roll by pulley and be arranged on the track again, and folder rail car is more easily moved around in orbit.
Improve again, described folder rail car can place the structure on the track to be preferably back and forth glidingly: the front end of described folder rail car or rear end can vertically be connected with towing plate one end versatilely, and the other end of towing plate and crane trolley are connected to a fixed, and folder rail car rollably places on the track by pulley, this structure can keep dolly can not derail and moves around.
Compared with prior art, the present invention adopts and also include connecting rod in safety clamping device, jig arm, folder rail car, described folder rail car can place on the track back and forth glidingly, and described jig arm is two and is arranged on the folder rail car both sides with lever, and described connecting rod is two, an end separately of these two connecting rods and the upper end of hydraulic lifting axle interconnect movably by same bearing pin, and the other end of two connecting rods links together versatilely with the upper end of corresponding jig arm separately respectively, and the lower surface of jig arm extends to below that presss from both sides the rail car and the position, two sides that is positioned at track after bending respectively, and drive by the liquid lifting shaft between the lower surface of jig arm and the track side surfaces and realizes clamping or unclamp cooperating, described folder rail car and crane trolley are fixed together.The advantage of this structure is when something unexpected happened; suddenly arrive as fitful wind etc.; fixing device can be fixed in folder rail car on the track; and folder rail car and crane trolley are fixed together; keep motionless on the track so when rail vehicle is fixing, the heavy-duty machine driving is fixed in, thereby play good safety guard-safeguard effect.
Description of drawings
Fig. 1 is the structural representation of the embodiment of the invention;
Fig. 2 is along the cutaway view of A-A line among Fig. 1;
Fig. 3 is the constructional drawing of connecting panel among Fig. 2.
The specific embodiment
Embodiment describes in further detail the present invention below in conjunction with accompanying drawing.
As Fig. 1, Fig. 2 and shown in Figure 3, the safety clamping device that is used for transfer crane of present embodiment includes the oil cylinder 1 of hydraulic lifting axle 11.The safety fixing device also includes connecting rod 8, jig arm 2, folder rail car 3, and folder rail car 3 can place on the slide rail 5 back and forth glidingly.And above-mentioned jig arm 2 is two and is arranged on folder rail car 3 both sides with lever, and the lower surface 21 of jig arm 2 extends to the below of folder rail car 3 respectively and be positioned at the position, two sides of track 5 after bending, drive by liquid lifting shaft 11 between the lower surface 21 of jig arm 2 and track 5 sides and realizes clamping or unclamp cooperating, above-mentioned jig arm 2 with the structure that lever is arranged on folder rail car 3 both sides is: be horizontally arranged with connecting panel 31 respectively on folder rail car 3 two sides, one end of this connecting panel 31 is fixed on the folder rail car 3, and the other end is rotatably connected to jig arm 2 by pivot pin 32, and jig arm 2 is on the both sides that are arranged at folder rail car 3 symmetrically.And described connecting rod 8 is two, an end separately of these two connecting rods 8 and the upper end of hydraulic lifting axle 11 interconnect movably by same bearing pin 12, and the other end of two connecting rods 8 links together versatilely with the upper end 22 of corresponding jig arm 2 separately respectively, and above-mentioned folder rail car 3 is fixed together with crane trolley.An end separately of two connecting rods 8 and the upper end of hydraulic lifting axle 11 interconnect movably by same bearing pin 12, and two connecting rods 8 link together by bearing and pivot pin 12 versatilely with the upper end of hydraulic lifting axle 11.Oil cylinder 1 be fixed on the folder rail car 3 and with oil pump power pack 6 supporting the linking together that are arranged on the folder rail car 3.Above-mentioned folder rail car 3 can place the structure on the track 5 to be back and forth glidingly: promptly press from both sides rail car 3 and can roll by pulley 7 and be arranged on the track 5.The front end or the rear end of folder rail car 3 can vertically be connected with towing plate 4 one ends versatilely, and the other end of towing plate 4 and crane trolley are connected to a fixed, and folder rail car 3 rollably places on the track 5 by pulley 7.
This device,
Cylinder diameter φ 70
Oil pressure Pmax=15MPa
Pmin＝10MPa
Gripping power 23000kg/35000kg
Thrust power 10000kg/15000kg
Oil cylinder piston stroke 130mm
Oil cylinder piston upwards operation promotes connecting rod, makes jig arm jaw grip track, on the contrary jaw unclamp, see that the solid line among Fig. 2 is to clamp, dotted line is a releasing orientation.Above-mentioned connecting rod is installed on the folder rail vehicle frame on the crane trolley cross sill, and connection dimension is done by 2464mm, reserves the 25mm cart wheel tread bit shift compensation that is used to drive a vehicle and uses.
Principle of work of the present invention is,
When crane trolley during in normal operation; move back and forth in orbit with folder rail car; when meeting the fitful wind sky; because the crane trolley volume is tall and big, is easy to be blown and turns over, at this moment by fitful wind; can open the jig arm on the folder rail car; jig arm is clamped on the track,, is fixed on the track thereby will press from both sides the rail car because jig arm is fixed on the folder rail car; and folder rail car and crane trolley are fixed together; so in geometrical clamp rail car, crane trolley is fixed on the track, thereby plays installation protective effect to crane trolley; and when the crane trolley needs are mobile; as long as unclamp jig arm, not only safety guard-safeguard is effective, and uses also very convenient.
Claims (6)
1. safety clamping device that is used for transfer crane, include the oil cylinder (1) of hydraulic lifting axle (11), it is characterized in that: described safety clamping device also includes connecting rod (8), jig arm (2), folder rail car (3), described folder rail car (3) can place on the track (5) back and forth glidingly, and described jig arm (2) is two and is arranged on folder rail car (3) both sides with lever, and described connecting rod (8) is two, an end separately of these two connecting rods (8) and the upper end of hydraulic lifting axle (11) interconnect movably by bearing pin (12), and the other end of two connecting rods (8) links together versatilely with the upper end (22) of corresponding jig arm (2) separately respectively, and the lower surface (21) of jig arm (2) extends to below that presss from both sides rail car (3) and the position, two sides that is positioned at track (5) after bending respectively, and drive by hydraulic lifting axle (11) between the lower surface (21) of jig arm (2) and track (5) side and realizes clamping or unclamping cooperating, described folder rail car (3) and crane trolley are fixed together.
2. safety clamping device according to claim 1, it is characterized in that: described jig arm (2) with the structure that lever is arranged on folder rail car (3) both sides is: be horizontally arranged with connecting panel (31) respectively on folder rail car (3) two sides, one end of this connecting panel (31) is fixed on the folder rail car (3), and the other end is rotatably connected to jig arm (2) by pivot pin (32).
3. safety clamping device according to claim 2 is characterized in that: described jig arm (2) is on the both sides that are arranged at folder rail car (3) symmetrically.
4. according to claim 1,2 or 3 described safety clamping devices, it is characterized in that: an end separately of described two connecting rods (8) and the upper end of hydraulic lifting axle (11) are that two connecting rods (8) link together by bearing and pivot pin (12) versatilely with the upper end of hydraulic lifting axle (11) by the mutual movably tandem arrangement of same bearing pin (12) together.
5. according to claim 1,2 or 3 described safety clamping devices, it is characterized in that: described oil cylinder (1) and supporting the linking together of oil pump power pack (6) that is arranged on the folder rail car (3).
6. according to claim 1,2 or 3 described safety clamping devices, it is characterized in that: described folder rail car (3) can place the structure on the track (5) to be back and forth glidingly: the front end of described folder rail car (3) or rear end can vertically be connected with towing plate (4) one ends versatilely, and the other end and the crane trolley of towing plate (4) are connected to a fixed, and folder rail car (3) rollably places on the track (5) by pulley (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910096574A CN101823667A (en) | 2009-03-06 | 2009-03-06 | Safety clamping device for portal crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910096574A CN101823667A (en) | 2009-03-06 | 2009-03-06 | Safety clamping device for portal crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101823667A true CN101823667A (en) | 2010-09-08 |
Family
ID=42687872
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910096574A Pending CN101823667A (en) | 2009-03-06 | 2009-03-06 | Safety clamping device for portal crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101823667A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105540441A (en) * | 2016-01-26 | 2016-05-04 | 刘青建 | Industrial crane protection frame |
-
2009
- 2009-03-06 CN CN200910096574A patent/CN101823667A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105540441A (en) * | 2016-01-26 | 2016-05-04 | 刘青建 | Industrial crane protection frame |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Open date: 20100908 |