CN103482522B - Shock-proof wheel structure of jack - Google Patents
Shock-proof wheel structure of jack Download PDFInfo
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- CN103482522B CN103482522B CN201310426843.3A CN201310426843A CN103482522B CN 103482522 B CN103482522 B CN 103482522B CN 201310426843 A CN201310426843 A CN 201310426843A CN 103482522 B CN103482522 B CN 103482522B
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Abstract
The invention belongs to the technical field of hoisting facilities, and relates to a shock-proof wheel structure of a jack. The shock-proof wheel structure comprises a bolt, a wheel carrier seat, a ball bearing, a wheel carrier, a pin, a bushing and a wheel body, the wheel carrier seat is connected to the rear side of a jack base, the wheel carrier is provided with a base plate and a pair of wheel arms, pin holes are formed in the wheel arms in the pair, the bolt penetrates the base plate and the wheel carrier seat on the wheel carrier prior to locking, the ball bearing is disposed between the wheel carrier and the wheel carrier seat, the bushing is mounted in a center shaft hole of the wheel body, and the wheel body is disposed between the wheel arms of the wheel carrier. The shock-proof wheel structure is characterized in that an elongated hole is formed in the axial middle of the bushing, the section of the pin is non-circular, the pin is serially connected in the elongated hole and the pin holes in the pair, a positioning pin is mounted on one side hole wall of the elongated hole, a compression spring is sleeved on the positioning pin, and one end of the compression spring butts against the pin while the other end of the same butts against the bushing. The shock-proof wheel structure has excellent shock-proof effect, and is lower in noise, good in universality, wide in application range and more flexible and convenient to mount and demount.
Description
Technical field
The invention belongs to technical field of hoisting facility, be specifically related to a kind of Shock-proof wheel structure being applicable to Horizontal jack trailing wheel, is the improvement of the rear-wheel structure to existing Horizontal jack.
Background technology
At present, the rear-wheel structure being applied to Horizontal jack disclosed by Fig. 1, it comprises bolt 1, wheel stand 2, ball bearing of main shaft 3, wheel carrier 4, pin 5, lining 6 and wheel body 7, described wheel stand 2 is directly formed on jack pedestal, described bolt 1 is locked with bullet pad 12 and nut 11 after through wheel carrier 4 and wheel stand 2, thus described wheel carrier 4 is arranged on described wheel stand 2, described ball bearing of main shaft 3 be placed in wheel carrier 4 and and wheel stand 2 between, described wheel carrier 4 is made to do any rotation of 360 ° of scopes relative to wheel stand 2, described lining 6 is arranged in the central shaft hole of wheel body 7, manhole is offered in the middle of the axis of lining 6, described wheel body 7 is placed between a pair wheel arm of wheel carrier 4, described pin 5 is cylindrical pin, described wheel body 7 is pivotally connected on described wheel carrier 4 by this pin 5 after through the manhole in the middle of circular pegs nail corresponding in a pair wheel arm of wheel carrier 4 and lining 6.Above-mentioned rear-wheel structure, the phenomenon that is uneven is there will be unavoidably in the assembling process of jack, particularly jack can produce certain permanent deformation after long-term load-carrying uses, the rugged phenomenon of four-wheel can be caused equally, if once produce the uneven phenomenon of four-wheel, then jack is in the process pushing movement, and the impulsive force relatively giving ground also can increase, not only easily damage ground, and larger noise can be caused.
For above-mentioned existing problems, Chinese invention patent Authorization Notice No. CN101028914B discloses a kind of name and is called " the jack wheel installing structure with shock absorbing apparatus ", its formation mainly comprises a support, a d-axis, a Compress Spring and an axle sleeve, this axle sleeve is fixed on the trailing wheel top cover of jack in advance, Compress Spring is replanted after being inserted in d-axis into axle sleeve and is formed and fastens location, and d-axis and support are in fixing.By the compression variation of spring, make trailing wheel all the time with earth surface, thus ensure that jack four-wheel remains the state of landing.But this jack wheel installing structure needs to transform traditional wheel installing structure when mounted, and d-axis all adopts welding process and described support with trailing wheel top cover structure for being fixedly connected with axle sleeve, thus supporting alerting ability is lacked, also need again to spray paint to wheel after welding completes, troublesome poeration, can not transform existing product immediately.
In view of above-mentioned prior art, be necessary to be improved the rear-wheel structure of existing Horizontal jack, for this reason, the applicant has done useful design, and technical scheme described below produces under this background.
Summary of the invention
Task of the present invention is the Shock-proof wheel structure that will provide a kind of jack, be particularly suitable for the rear frame portion being arranged on Horizontal jack, it can not change the configuration of conventional wheel, without the need to welding and lacquer spraying technique wheel installing structure again, can use by directly conventional wheel being replaced as this wheel, and Assembly &Disassembly is flexible, convenient, there is good shock-proof effect simultaneously, no matter when unloaded or heavily loaded, all can guarantee that the four wheels of jack remains the state of landing, therefore in jack passing process, impact and destruction that wheel causes ground can be reduced, and reduce noise.
Task of the present invention has been come like this, a kind of Shock-proof wheel structure of jack, comprise bolt, wheel stand, ball bearing of main shaft, wheel carrier, pin, lining and wheel body, described wheel stand is connected to the rear side of jack pedestal, described wheel carrier has a chassis and the extension that corresponds to each other and is formed in a pair wheel arm on chassis, position corresponding in a pair wheel arm offers pin hole respectively, described bolt uses bullet pad and nut locking after through the chassis on wheel carrier and wheel stand, described ball bearing of main shaft is made up of ball retainer and the many pieces of steel balls be located on ball retainer, this ball bearing of main shaft is placed between wheel carrier and wheel stand, described lining is arranged in the central shaft hole of wheel body, described wheel body is placed between a pair wheel arm of wheel carrier, be characterized in: in the middle of the axis of lining, offer an elongated hole, the cross sectional shape of described pin is non-circular, pin be serially connected in elongated hole in the middle of lining with in pair of pin nail and with a pair wheel arm structure for being fixedly connected with, described lining is also provided with a locating dowel pin on the side hole wall of elongated hole, described locating dowel pin is arranged with a Compress Spring, conflict on described pin in one end of described Compress Spring, the other end of Compress Spring is conflicted on described lining.
In a specific embodiment of the present invention, the cross sectional shape of the wherein at least one pin hole in pair of pin nail is polygon.
In another specific embodiment of the present invention, described polygon is square.
In another specific embodiment of the present invention, the cross sectional shape of described pin is square.
The present invention is due to after employing said structure, by the adjustment compression degree of bush inside Compress Spring self-adapting type, the four-wheel of jack can be made to remain the state of landing, therefore the impact of jack wheel to ground can be reduced, there is good shock-proof effect, and reduce noise; Because this wheel contour structures is identical with the wheel contour structures on traditional jack, therefore change this Shock-proof wheel structure on traditional jack after, same technique effect can be realized, there is good commonality, expand Applicable scope; The Assembly &Disassembly of wheel more flexibly, conveniently.
Accompanying drawing explanation
Fig. 1 is the wheel structure schematic diagram of jack trailing wheel in prior art.
Fig. 2 is the planar structure cutaway view of shock-absorbing wheel of the present invention.
Fig. 3 is the spatial structure exploded drawings of shock-absorbing wheel of the present invention.
In figure: 1. bolt, 11. nuts, 12. bullet pads; 2. take turns stand; 3. ball bearing of main shaft, 31. steel balls, 32. ball retainers; 4. wheel carrier, 41. chassis, 42. wheel arm, 421. pin holes; 5. pin; 6. lining, 61. elongated holes; 7. wheel body, 71. central shaft holes; 8. locating dowel pin; 9. Compress Spring.
Detailed description of the invention
Technical spirit of the present invention and beneficial effect can be fully understood in order to make the public; applicant will describe in detail the specific embodiment of the present invention below by reference to the accompanying drawings; but applicant is not the restriction to technical scheme to the description of embodiment, any changing in the form rather than substance according to the present invention's design all should be considered as protection scope of the present invention.
Refer to Fig. 2 and composition graphs 3, the Shock-proof wheel structure of a kind of jack of the present invention, comprise bolt 1, wheel stand 2, ball bearing of main shaft 3, wheel carrier 4, pin 5, lining 6, wheel body 7, locating dowel pin 8 and Compress Spring 9.Described wheel stand 2 is known technology, and the direct rear side extension by jack pedestal forms usually.Described wheel carrier 4 has a chassis 41 and the extension that corresponds to each other and is formed in a pair wheel arm 42 on chassis 41, position corresponding in a pair wheel arm 42 offers pin hole 421 respectively, the cross sectional shape of the wherein at least one pin hole 421 in pair of pin nail 421 is polygon, in the present embodiment, described polygon is preferably square.Described bolt 1 is locked with bullet pad 12 and nut 11 after through the chassis 41 on wheel carrier 4 and wheel stand 2, is arranged on described wheel stand 2 by described wheel carrier 4.Described ball bearing of main shaft 3 is made up of ball retainer 32 and the many pieces of steel balls 31 be located on ball retainer 32, and this ball bearing of main shaft 3 is placed between wheel carrier 4 and wheel stand 2, makes described wheel carrier 4 do any rotation of 360 ° of scopes relative to wheel stand 2.Described lining 6 is arranged in the central shaft hole 71 of wheel body 7, and described central shaft hole 71 is circular, in the middle of the axis of lining 6, offer an elongated hole 61.The cross sectional shape of described pin 5 is non-circular, is preferably square in the present embodiment, for matching with the cross sectional shape of described pin hole 421.Described wheel body 7 is placed between a pair wheel arm 42 of wheel carrier 4, pin 5 be serially connected in elongated hole 61 in the middle of lining 6 with in pair of pin nail 421 and with a pair wheel arm 42 structure for being fixedly connected with.Described lining 6 is also provided with a locating dowel pin 8 on the side hole wall of elongated hole 61, described locating dowel pin 8 is arranged with a Compress Spring 9, conflict on described pin 5 in one end of described Compress Spring 9, the other end of Compress Spring 9 is conflicted on described lining 6.
Shock-proof wheel structure of the present invention in actual use, realize lining 6 by the expanding-contracting action of Compress Spring 9 under external force to slide up and down relative to pin 5 in the elongated hole 61 in the middle of it, thus drive the knee-action that wheel body 7 is relative, the outer rim so also just making wheel body 7 all the time with the contact on ground, ensure that the state that lands that the four wheels of Horizontal jack remains good.
Claims (4)
1.
a kind of Shock-proof wheel structure of jack, comprise bolt (1), wheel stand (2), ball bearing of main shaft (3), wheel carrier (4), pin (5), lining (6) and wheel body (7), described wheel stand (2) is connected to the rear side of jack pedestal, described wheel carrier (4) has a chassis (41) and the extension that corresponds to each other and is formed in a pair wheel arm (42) on chassis (41), pin hole (421) is offered respectively at a pair upper corresponding position of wheel arm (42), described bolt (1) is using bullet pad (12) and nut (11) locking afterwards through the chassis (41) on wheel carrier (4) and wheel stand (2), described ball bearing of main shaft (3) is made up of ball retainer (32) and the many pieces of steel balls (31) be located on ball retainer (32), this ball bearing of main shaft (3) is placed between wheel carrier (4) and wheel stand (2), described lining (6) is arranged in the central shaft hole (71) of wheel body (7), described wheel body (7) is placed between a pair wheel arm (42) of wheel carrier (4), it is characterized in that: in the middle of the axis of lining (6), offer an elongated hole (61), the cross sectional shape of described pin (5) is non-circular, pin (5) be serially connected in elongated hole (61) in the middle of lining (6) with in pair of pin nail (421) and with a pair wheel arm (42) structure for being fixedly connected with, described lining (6) is also provided with a locating dowel pin (8) on the side hole wall of elongated hole (61), described locating dowel pin (8) is arranged with a Compress Spring (9), conflict on described pin (5) in one end of described Compress Spring (9), the other end of Compress Spring (9) is conflicted on described lining (6).
2.
the Shock-proof wheel structure of jack according to claim 1, is characterized in that the cross sectional shape of the wherein at least one pin hole (421) in pair of pin nail (421) is polygon.
3.
the Shock-proof wheel structure of jack according to claim 2, is characterized in that described polygon is for square.
4.
the Shock-proof wheel structure of jack according to claim 1, is characterized in that the cross sectional shape of described pin (5) is for square.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310426843.3A CN103482522B (en) | 2013-09-18 | 2013-09-18 | Shock-proof wheel structure of jack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310426843.3A CN103482522B (en) | 2013-09-18 | 2013-09-18 | Shock-proof wheel structure of jack |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103482522A CN103482522A (en) | 2014-01-01 |
| CN103482522B true CN103482522B (en) | 2015-07-22 |
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ID=49823196
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310426843.3A Active CN103482522B (en) | 2013-09-18 | 2013-09-18 | Shock-proof wheel structure of jack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103482522B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108466965B (en) * | 2018-05-04 | 2024-03-12 | 温州升望气动工具有限公司 | Portable automatic horizontal jack |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101028914B (en) * | 2006-03-02 | 2011-04-06 | 信孚产业股份有限公司 | Jack wheel with shock absorber |
| JP5127970B1 (en) * | 2011-09-26 | 2013-01-23 | 栄喜 ▲高▼野 | Spring roller caster |
| CN102633201B (en) * | 2012-04-28 | 2013-09-25 | 常熟通润汽车零部件股份有限公司 | Wheel structure of jack |
| CN203461763U (en) * | 2013-09-18 | 2014-03-05 | 常熟通润汽车零部件股份有限公司 | Shock absorption wheel structure of jack |
-
2013
- 2013-09-18 CN CN201310426843.3A patent/CN103482522B/en active Active
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| Publication number | Publication date |
|---|---|
| CN103482522A (en) | 2014-01-01 |
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