CN104891381A - Shiftable mechanical jack - Google Patents
Shiftable mechanical jack Download PDFInfo
- Publication number
- CN104891381A CN104891381A CN201510305355.6A CN201510305355A CN104891381A CN 104891381 A CN104891381 A CN 104891381A CN 201510305355 A CN201510305355 A CN 201510305355A CN 104891381 A CN104891381 A CN 104891381A
- Authority
- CN
- China
- Prior art keywords
- gear
- drive link
- axle sleeve
- movable axle
- bolt
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F3/00—Devices, e.g. jacks, adapted for uninterrupted lifting of loads
- B66F3/08—Devices, e.g. jacks, adapted for uninterrupted lifting of loads screw operated
- B66F3/16—Devices, e.g. jacks, adapted for uninterrupted lifting of loads screw operated actuated through bevel-wheel gearings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F3/00—Devices, e.g. jacks, adapted for uninterrupted lifting of loads
- B66F3/08—Devices, e.g. jacks, adapted for uninterrupted lifting of loads screw operated
- B66F3/20—Devices, e.g. jacks, adapted for uninterrupted lifting of loads screw operated actuated through multiple or change-speed gearings
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Gear Transmission (AREA)
Abstract
The invention discloses a shiftable mechanical jack comprising a shift transmission mechanism and a lifting mechanism. The shift transmission mechanism is mounted on one side of the lifting mechanism and comprises a mounting shell, a first transmission rod, a second transmission rod and a rocker; the lifting mechanism comprises a lifting member, a first bevel gear, a second bevel gear, a lifting screw, an upper screw nut and a bottom plate; the mounting shell is mounted on one side of the lifting member; a support plate is mounted in the lifting member; the support plate is provided with a gear seat; the second bevel gear is mounted on the gear seat; the first bevel gear is mounted on the first transmission rod; the first bevel gear and the second bevel gear are mounted in a vertical meshing manner. The shiftable mechanical jack has the advantages that lifting speed of a container can be well controlled, handling the container is easier, less force is required by the rocker during handling, equipment structure is simple, stability is good, the lifting screw is high in strength, and the service life is longer.
Description
[technical field]
The present invention relates to the technical field of jack, particularly a kind of technical field of mechanical jack of shift-variable.
[background technology]
Jack is the highly little the simplest weight-lifting equipment of a kind of lifting, lifts part as equipment, the light little weight-lifting equipment of jacking weight in stroke by top bracket or bottom claw with rigidity top.Divide mechanical type and fluid pressure type two kinds, jack is mainly used in the department such as factories and miness, communications and transportation as Mechanical Help and other work such as lifting, support.Its light structure is firm, flexibility and reliability, and a people can carry and operate.Jack, as a kind of range of use instrument widely, have employed top quality cast, ensure that quality and the service life of jack.Need to use jack pair freight container to load and unload in the lifting of freight container, but existing jack lacks actv. gearshift transmission device, can not the rising or falling speed of good domination set vanning, it is larger to load and unload difficulty.
[summary of the invention]
Object of the present invention solves the problems of the prior art exactly, a kind of mechanical jack of shift-variable is proposed, the first drive link and the second drive link can be optionally controlled by controlling rocking bar, first drive link and the second drive link have different transmitting ratios, can be good at the rising or falling speed of domination set vanning, reduce the handling difficulty of freight container, and gear laterally between distance shorter, application force needed for rocking bar when reducing handling, device structure is simple, have good stability, the intensity of lift-bolt is high, and service life is longer.
For achieving the above object, the present invention proposes a kind of mechanical jack of shift-variable, comprise gearshift transmission device and hoist mechanism, described gearshift transmission device is installed on the side of hoist mechanism, gearshift transmission device comprises holder housing, first drive link, second drive link and rocking bar, in described holder housing to the first drive link is installed successively, second drive link and rocking bar, described first drive link is provided with the first gear, second drive link is provided with the second gear and the 3rd gear, rocking bar is provided with the 4th gear and the 5th gear, first gear and the second gears meshing are installed, second gear and the 4th gears meshing are installed, 3rd gear and the 5th gears meshing are installed, described 4th gear offers internal spline, the size of internal spline and the measure-alike of the 5th gear, first movable axle sleeve is installed in described holder housing, one end of described rocking bar is installed in the first movable axle sleeve, hoist mechanism comprises lifting body, first cone gear, second cone gear, lift-bolt, upper stem nut and base plate, described holder housing is installed on lifting body side, in lifting body, stay bearing plate is installed, described stay bearing plate is provided with pinion stand, second cone gear is installed on pinion stand, first cone gear is installed on the first drive link, first cone gear and the second cone gear Vertical Meshing are installed, described lift-bolt is installed on bottom pinion stand, upper boom nut sleeve is loaded on lift-bolt outside, it is outside that lifting body is installed on stem nut, upper stem nut is installed on base plate.
As preferably, be provided with the second movable axle sleeve in described holder housing, one end of the first drive link is connected with the second movable axle sleeve, and the other end of the first drive link stretches out holder housing, and the two ends of the second drive link are connected respectively at the second movable axle sleeve.
As preferably, the gear teeth quantity of described first gear, the 3rd gear and the 4th gear is 33, and the gear teeth quantity of the second gear and the 5th gear is 12, and the spacing between the second gear and the 3rd gear is 11 ~ 15mm.
As preferably, the front end of described first movable axle sleeve is provided with annular stop plate, the end of rocking bar is provided with the annular stop projection of integrative-structure, the internal diameter of annular stop plate is less than the internal diameter of the first movable axle sleeve, the external diameter of annular stop projection equals the internal diameter of the first movable axle sleeve, and the degree of depth of the first movable axle sleeve is more than or equal to the distance bottom the 5th gear end to internal spline.
As preferably, the top of described lift-bolt is provided with disc structure, and pinion stand is installed on disc structure, and the bottom of described disc structure is connected with lift-bolt by stirrup, described lift-bolt is provided with spacing plectane, and spacing plectane is positioned at the end of stirrup.
As preferably, described pinion stand is through stay bearing plate, the end of pinion stand is provided with about the two pieces bearing plates distributed, between two pieces of bearing plates, shock ring is installed, installation ring is provided with bottom described upper stem nut, described base plate is symmetrically installed with two pieces of risers, upper stem nut is installed on riser by installation ring, and the size of base plate cross-sectional plane is greater than the size of lifting body cross-sectional plane.
Beneficial effect of the present invention: the present invention can optionally control the first drive link and the second drive link by controlling rocking bar, first drive link and the second drive link have different transmitting ratios, can be good at the rising or falling speed of domination set vanning, reduce the handling difficulty of freight container, and gear laterally between distance shorter, application force needed for rocking bar when reducing handling, device structure is simple, have good stability, the intensity of lift-bolt is high, and service life is longer.
Feature of the present invention and advantage will be described in detail by reference to the accompanying drawings by embodiment.
[accompanying drawing explanation]
Fig. 1 is the main TV structure figure of the mechanical jack of a kind of shift-variable of the present invention;
Fig. 2 is that the present invention shifts gears the main TV structure figure of transmission device;
Fig. 3 is A portion enlarged drawing in Fig. 2;
Fig. 4 is the main TV structure figure of hoist mechanism of the present invention.
[detailed description of the invention]
Consult Fig. 1, Fig. 2, Fig. 3 and Fig. 4, the mechanical jack of a kind of shift-variable of the present invention, comprise gearshift transmission device 1 and hoist mechanism 2, described gearshift transmission device 1 is installed on the side of hoist mechanism 2, gearshift transmission device 1 comprises holder housing 11, first drive link 12, second drive link 13 and rocking bar 14, in described holder housing 11 to the first drive link 12 is installed successively, second drive link 13 and rocking bar 14, described first drive link 12 is provided with the first gear 151, second drive link 13 is provided with the second gear 153 and the 3rd gear 153, rocking bar 14 is provided with the 4th gear 154 and the 5th gear 155, first gear 151 engages with the second gear 152 and installs, second gear 152 engages with the 4th gear 154 and installs, 3rd gear 153 engages with the 5th gear 155 and installs, described 4th gear 154 offers internal spline 156, the size of internal spline 156 and the measure-alike of the 5th gear 155, first movable axle sleeve 16 is installed in described holder housing 11, one end of described rocking bar 14 is installed in the first movable axle sleeve 16, hoist mechanism 2 comprises lifting body 21, first cone gear 23, second cone gear 24, lift-bolt 25, upper stem nut 26 and base plate 27, described holder housing 11 is installed on lifting body 21 side, stay bearing plate 211 is installed in lifting body 21, described stay bearing plate 211 is provided with pinion stand 28, second cone gear 24 is installed on pinion stand 28, first cone gear 23 is installed on the first drive link 12, first cone gear 23 and the second cone gear 24 Vertical Meshing are installed, described lift-bolt 25 is installed on bottom pinion stand 28, it is outside that upper stem nut 26 is set in lift-bolt 25, it is outside that lifting body 21 is installed on stem nut 26, upper stem nut 26 is installed on base plate 27.
Second movable axle sleeve 111 is installed in described holder housing 11, one end of first drive link 12 is connected with the second movable axle sleeve 111, the other end of the first drive link 12 stretches out holder housing 11, the two ends of the second drive link 13 are connected respectively at the second movable axle sleeve 111, described first gear 151, the gear teeth quantity of the 3rd gear 153 and the 4th gear 154 is 33, the gear teeth quantity of the second gear 152 and the 5th gear 155 is 12, spacing between second gear 152 and the 3rd gear 153 is 11 ~ 15mm, the front end of described first movable axle sleeve 16 is provided with annular stop plate 161, the end of rocking bar 14 is provided with the annular stop projection 141 of integrative-structure, the internal diameter of annular stop plate 161 is less than the internal diameter of the first movable axle sleeve 16, the external diameter of annular stop projection 141 equals the internal diameter of the first movable axle sleeve 16, the degree of depth of the first movable axle sleeve 16 is more than or equal to the distance bottom the 5th gear 155 end to internal spline 156, the top of described lift-bolt 25 is provided with disc structure 251, pinion stand 28 is installed on disc structure 251, the bottom of described disc structure 251 is connected with lift-bolt 25 by stirrup 252, described lift-bolt 25 is provided with spacing plectane 253, spacing plectane 253 is positioned at the end of stirrup 252, described pinion stand 28 is through stay bearing plate 211, the end of pinion stand 28 is provided with about the two pieces bearing plates distributed 281, between two pieces of bearing plates 281, shock ring 282 is installed, installation ring 261 is provided with bottom described upper stem nut 26, described base plate 27 is symmetrically installed with two pieces of risers 271, upper stem nut 26 is installed on riser 271 by installation ring 261, the size of base plate 27 cross-sectional plane is greater than the size of lifting body 21 cross-sectional plane.
Working process of the present invention:
The mechanical jack of a kind of shift-variable of the present invention in the course of the work, gearshift transmission device 1 can optionally control the first drive link 12 and the second drive link 13 by controlling rocking bar 14, both first drive link 12 and the second drive link 13 have different transmitting ratios, can be good at the rising or falling speed of domination set vanning, when freight container needs fast lifting, rocking bar 14 is advanced inward, the 5th gear 155 is made to imbed internal spline 156 on the 4th gear 154, the 4th gear 154 is driven by rocking bar 14, rocking bar 14 is made directly to drive the first drive link 12, rising or falling speed block, when freight container needs to reduce rising or falling speed, pull-out rocking bar 14, 5th gear 155 is engaged with the 3rd gear 153, rocking bar 14 drives the first drive link 12 by the second drive link 13, now operation effort is few, can accurately domination set vanning lifting distance, reduce the handling difficulty of freight container, and gear laterally between distance shorter, application force needed for rocking bar 12 when reducing handling, extend the service life of equipment.
Hoist mechanism 2 by installing pinion stand 28 on stay bearing plate 211, the lifting of lifting body 21 is controlled by the transmission of the first cone gear 23 and the second cone gear 24, pinion stand 28 is installed on disc structure 251, the bottom of disc structure 251 is connected with lift-bolt 25 by stirrup 252, there is good stability, the intensity of lift-bolt 25 is high, the end of pinion stand 28 is provided with about the two pieces bearing plates distributed 281, between two pieces of bearing plates 281, shock ring 282 is installed, shock ring 282 can reduce lift-bolt 25 deformation suffered when landing, the service life of lift-bolt 25 is longer.
Above-described embodiment is to explanation of the present invention, is not limitation of the invention, anyly all belongs to protection scope of the present invention to the scheme after simple transformation of the present invention.
Claims (6)
1. the mechanical jack of a shift-variable, it is characterized in that: comprise gearshift transmission device (1) and hoist mechanism (2), described gearshift transmission device (1) is installed on the side of hoist mechanism (2), gearshift transmission device (1) comprises holder housing (11), first drive link (12), second drive link (13) and rocking bar (14), in described holder housing (11) to the first drive link (12) is installed successively, second drive link (13) and rocking bar (14), described first drive link (12) is provided with the first gear (151), second drive link (13) is provided with the second gear (153) and the 3rd gear (153), rocking bar (14) is provided with the 4th gear (154) and the 5th gear (155), first gear (151) engages with the second gear (152) and installs, second gear (152) engages with the 4th gear (154) and installs, 3rd gear (153) engages with the 5th gear (155) and installs, described 4th gear (154) offers internal spline (156), the size of internal spline (156) and the measure-alike of the 5th gear (155), first movable axle sleeve (16) is installed in described holder housing (11), one end of described rocking bar (14) is installed in the first movable axle sleeve (16), hoist mechanism (2) comprises lifting body (21), first cone gear (23), second cone gear (24), lift-bolt (25), upper stem nut (26) and base plate (27), described holder housing (11) is installed on lifting body (21) side, stay bearing plate (211) is installed in lifting body (21), described stay bearing plate (211) is provided with pinion stand (28), second cone gear (24) is installed on pinion stand (28), first cone gear (23) is installed on the first drive link (12), first cone gear (23) and the second cone gear (24) Vertical Meshing are installed, described lift-bolt (25) is installed on pinion stand (28) bottom, it is outside that upper stem nut (26) is set in lift-bolt (25), it is outside that lifting body (21) is installed on stem nut (26), upper stem nut (26) is installed on base plate (27).
2. the mechanical jack of a kind of shift-variable as claimed in claim 1, it is characterized in that: the second movable axle sleeve (111) is installed in described holder housing (11), one end of first drive link (12) is connected with the second movable axle sleeve (111), the other end of the first drive link (12) stretches out holder housing (11), and the two ends of the second drive link (13) are connected respectively at the second movable axle sleeve (111).
3. the mechanical jack of a kind of shift-variable as claimed in claim 1, it is characterized in that: the gear teeth quantity of described first gear (151), the 3rd gear (153) and the 4th gear (154) is 33, the gear teeth quantity of the second gear (152) and the 5th gear (155) is 12, and the spacing between the second gear (152) and the 3rd gear (153) is 11 ~ 15mm.
4. the mechanical jack of a kind of shift-variable as claimed in claim 1, it is characterized in that: the front end of described first movable axle sleeve (16) is provided with annular stop plate (161), the end of rocking bar (14) is provided with the annular stop projection (141) of integrative-structure, the internal diameter of annular stop plate (161) is less than the internal diameter of the first movable axle sleeve (16), the external diameter of annular stop projection (141) equals the internal diameter of the first movable axle sleeve (16), the degree of depth of the first movable axle sleeve (16) is more than or equal to the distance of the 5th gear (155) end to internal spline (156) bottom.
5. the mechanical jack of a kind of shift-variable as claimed in claim 1, it is characterized in that: the top of described lift-bolt (25) is provided with disc structure (251), pinion stand (28) is installed on disc structure (251), the bottom of described disc structure (251) is connected with lift-bolt (25) by stirrup (252), described lift-bolt (25) is provided with spacing plectane (253), spacing plectane (253) is positioned at the end of stirrup (252).
6. the mechanical jack of a kind of shift-variable as claimed in claim 1, it is characterized in that: described pinion stand (28) is through stay bearing plate (211), the end of pinion stand (28) is provided with about the two pieces bearing plates distributed (281), between two pieces of bearing plates (281), shock ring (282) is installed, described upper stem nut (26) bottom is provided with installation ring (261), described base plate (27) is symmetrically installed with two pieces of risers (271), upper stem nut (26) is installed on riser (271) by installation ring (261), the size of base plate (27) cross-sectional plane is greater than the size of lifting body (21) cross-sectional plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510305355.6A CN104891381A (en) | 2015-06-04 | 2015-06-04 | Shiftable mechanical jack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510305355.6A CN104891381A (en) | 2015-06-04 | 2015-06-04 | Shiftable mechanical jack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104891381A true CN104891381A (en) | 2015-09-09 |
Family
ID=54024429
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510305355.6A Pending CN104891381A (en) | 2015-06-04 | 2015-06-04 | Shiftable mechanical jack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104891381A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117754053A (en) * | 2024-02-20 | 2024-03-26 | 西安皓森精铸股份有限公司 | Cutting device is used in processing of stainless steel metal foundry goods |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB253071A (en) * | 1925-06-05 | 1926-07-08 | Duff Mfg Co | Self-lowering screw-jack |
| US4013267A (en) * | 1976-06-01 | 1977-03-22 | Kirk Norman W | Pendulum jack |
| US4923175A (en) * | 1989-05-19 | 1990-05-08 | Kysor Industrial Corporation | Constant mesh gear box landing gear |
| JPH08268239A (en) * | 1995-03-31 | 1996-10-15 | Kakuwa Seiki Kk | Vertical positioning device in lifting leg |
| CN101367486A (en) * | 2008-09-12 | 2009-02-18 | 合肥市华林模具有限公司 | Lifting mechanism |
| CN201240801Y (en) * | 2008-03-14 | 2009-05-20 | 上海若海实业有限公司 | Speed variable jack |
| CN201301195Y (en) * | 2008-11-17 | 2009-09-02 | 宁波天益齿轴齿轮有限公司 | Screw positioning mechanism of elevator |
| CN201458643U (en) * | 2009-05-22 | 2010-05-12 | 宁波天益齿轴齿轮有限公司 | jack |
| CN202251749U (en) * | 2011-09-14 | 2012-05-30 | 宁波天益齿轴齿轮有限公司 | Jack provided with transmission |
| CN203497993U (en) * | 2013-09-29 | 2014-03-26 | 扬州统一机械有限公司 | Two-shaft type gearbox screw jack |
| CN204752086U (en) * | 2015-06-04 | 2015-11-11 | 宁波天胜传动件有限公司 | Mechanical jack that can shift gears |
-
2015
- 2015-06-04 CN CN201510305355.6A patent/CN104891381A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB253071A (en) * | 1925-06-05 | 1926-07-08 | Duff Mfg Co | Self-lowering screw-jack |
| US4013267A (en) * | 1976-06-01 | 1977-03-22 | Kirk Norman W | Pendulum jack |
| US4923175A (en) * | 1989-05-19 | 1990-05-08 | Kysor Industrial Corporation | Constant mesh gear box landing gear |
| JPH08268239A (en) * | 1995-03-31 | 1996-10-15 | Kakuwa Seiki Kk | Vertical positioning device in lifting leg |
| CN201240801Y (en) * | 2008-03-14 | 2009-05-20 | 上海若海实业有限公司 | Speed variable jack |
| CN101367486A (en) * | 2008-09-12 | 2009-02-18 | 合肥市华林模具有限公司 | Lifting mechanism |
| CN201301195Y (en) * | 2008-11-17 | 2009-09-02 | 宁波天益齿轴齿轮有限公司 | Screw positioning mechanism of elevator |
| CN201458643U (en) * | 2009-05-22 | 2010-05-12 | 宁波天益齿轴齿轮有限公司 | jack |
| CN202251749U (en) * | 2011-09-14 | 2012-05-30 | 宁波天益齿轴齿轮有限公司 | Jack provided with transmission |
| CN203497993U (en) * | 2013-09-29 | 2014-03-26 | 扬州统一机械有限公司 | Two-shaft type gearbox screw jack |
| CN204752086U (en) * | 2015-06-04 | 2015-11-11 | 宁波天胜传动件有限公司 | Mechanical jack that can shift gears |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117754053A (en) * | 2024-02-20 | 2024-03-26 | 西安皓森精铸股份有限公司 | Cutting device is used in processing of stainless steel metal foundry goods |
| CN117754053B (en) * | 2024-02-20 | 2024-06-04 | 西安皓森精铸股份有限公司 | Cutting device is used in processing of stainless steel metal foundry goods |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150909 |
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| WD01 | Invention patent application deemed withdrawn after publication |