CN103707860A - Electric support leg - Google Patents
Electric support leg Download PDFInfo
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- CN103707860A CN103707860A CN201410024384.0A CN201410024384A CN103707860A CN 103707860 A CN103707860 A CN 103707860A CN 201410024384 A CN201410024384 A CN 201410024384A CN 103707860 A CN103707860 A CN 103707860A
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- gear
- supporting leg
- rocker
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- head
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Abstract
The invention relates to an electric support leg which comprises a support leg body as well as a gearbox and a motor arranged at the side part of one support leg assembly, wherein a main output shaft, a three-stage gear, a high-speed transmission gear, a low-speed transmission gear, an input bevel gear set, a shifting rod mechanism and a rocker plate are arranged inside a gearbox; the main output shaft is sleeved with the three-stage gear; the main output shaft is connected with a main gear transmission mechanism inside a left support leg assembly and a right support leg assembly; the input bevel gear set is driven by the motor; the high-speed transmission gear and the low-speed transmission gear are arranged on the rocker plate and are meshed with the input bevel gear set; the shifting rod mechanism is used for controlling the rocker plate to swing in three different shifts, so as to enable the three-stage gear to be meshed with the high-speed transmission gear, meshed with the low-speed transmission gear or dissociated from both the high-speed transmission gear and the low-speed transmission gear. The electric support leg has three options of manual control, electric high speed control and electric low speed control, and is reasonable in structure and labor-saving in operation.
Description
Technical field
The present invention relates to semi-trailer support technical field, especially electronic supporting leg.
Background technology
Semi-trailer support is the special-purpose member of various superimposed trailers, its left and right supporting leg is arranged on respectively the right and left of superimposed trailer front end, when superimposed trailer and tractor truck hook, semi-trailer support rises from ground, when superimposed trailer is placed separately, semi-trailer support is stretched to appropriate length and makes semi-mounted vehicle body maintenance level.The adjusting major part of existing supporting leg inner sleeve is to realize by manual mode, if China Patent No. 99236524.4 is in disclosed supporter of semi-trailer on June 28th, 2000, comprise left and right supporting leg and the intermediate connecting shaft thereof that can be arranged on superimposed trailer front end, two-speed gear transmission device, described supporting leg is closed internal and external double-layer structure; The lifting screw of inner sleeve is provided with micro-adjusting mechanism, and micro-adjusting mechanism is the Ball faced nut being arranged on the loading plate of inner sleeve top, and it can realize the movement of certain distance and the rotation of certain angle on loading plate.Described two-speed gear transmission device is provided with gear shift self-locking mechanism, it comprises big or small dual gear on input shaft and the big or small dual gear on bridge shaft, and the former axial dimension is greater than the axial dimension between the large miniature gears of the latter, make its in high, low speed shift process without room.But because the adjusting of supporting leg inner sleeve is to realize by manual mode, so it is relatively painstaking to operate when top gear, when bottom gear, operation is relatively time-consuming.
Summary of the invention
The technical problem to be solved in the present invention is, for semi-trailer support in prior art, can only pass through the existing technological deficiency of manual regulation, provide a kind of rational in infrastructure, operate time saving and energy saving, to there is independent current source electronic supporting leg, make semi-trailer support both can realize motorized adjustment, also manual regulation can be realized, and supporting leg can be when not having electric power to support, regulated.
The technical solution adopted for the present invention to solve the technical problems is: a kind of electronic supporting leg, comprise supporting leg, and described supporting leg comprises a left side, right supporting leg assembly, the tween drive shaft of connection left and right supporting leg assembly, on a left side, main gear transmission mechanism in right supporting leg assembly, also comprises the gear case and the motor that are arranged on one of them supporting leg assembly sidepiece, in described gear case, is provided with main output shaft, tertiary gear, high-speed drive gear, low gear, input bevel gear set, dead man mechanism, rocker, described tertiary gear is socketed on main output shaft, and described main output shaft connects left, main gear transmission mechanism in right supporting leg assembly, described input bevel gear set is driven by described motor, described high-speed drive gear, low gear is arranged on rocker and with input bevel gear set and meshes, and described dead man mechanism controls rocker swings on three different gears, and make described tertiary gear or mesh with high-speed drive gear, or and low gear, or with height, low gear all departs from.
Described rocker comprises front rocker, rear rocker, and described forward and backward rocker synchronously swings, and on described forward and backward rocker, is respectively arranged with fixed orifice, and described fixed orifice is arranged on respectively on the case lid of gear case, and the installation shaft of described input bevel gear set is through described fixed orifice.
Described input bevel gear set comprises chopped-off head bevel gear wheel, chopped-off head gear wheel shaft, described chopped-off head gear wheel shaft is fixedly mounted on the axis hole of chopped-off head bevel gear wheel, the flat tooth engaged transmission of described high-speed drive gear and chopped-off head bevel gear wheel, described low gear and chopped-off head gear wheel shaft engaged transmission, the cone tooth of described chopped-off head bevel gear wheel and bevel pinion engagement, described bevel pinion connects the output shaft of motor.
Described case lid comprises protecgulum and bonnet, described dead man mechanism is arranged on the top of protecgulum, it comprises gear shift operating rod cam, joystick, sliding sleeve, bolt, described bolt connects gear shift operating rod cam and joystick, the cam head of described gear shift operating rod cam is inserted in sliding sleeve, and described sliding sleeve is arranged in the pendulum hole of front rocker and can in pendulum hole, slides.
The inside sidewalls of described bonnet is provided with some reinforced ribs.
The sidewall edge of described bonnet is provided with seal groove, and seal ring is set in seal groove.
Also comprise the rubber pad that is arranged on bonnet back.
Also comprise power supply box, the driving power of described power supply box built-in motor.
Beneficial effect of the present invention is as follows:
(1) electronic supporting leg of the present invention has two kinds of selections of manual or electronic control, when the electronic control of needs, by rocker, the tertiary gear on transmission gear and power take-off shaft is in transmission connection, when needs are manually controlled, rocker separates two transmission gears and the tertiary gear on power take-off shaft, can shake power take-off shaft by handle and rotate, to be applicable to not having, in the situation of power supply, use;
(2) on rocker, be provided with high, low speed transmission gear, high, low speed transmission gear all meshes with the bevel gear set of input, when rocker swings, can select high-speed drive gear or low gear and tertiary gear engagement, thereby have while realizing electronic control, top gear drives or bottom gear drives;
(3) seal ring in the seal groove of bonnet can be eliminated because front and rear covers tolerance clearance prevents entering of dust and rainwater, the drive disk assembly in protection gear case.Rubber pad can be eliminated gear case inner cap and supporting leg tolerance clearance, plays shock-absorbing and effect and prevents that dust and rainwater from entering effect, protection gear case inner structure.
(4) independently driving power and fender guard, guarantee independence and the road-holding property of driving power.
Accompanying drawing explanation
Fig. 1 is the gear case inner body exploded view of the electronic supporting leg of the present invention.
Fig. 2 is the bonnet schematic perspective view of gear case.
Fig. 3 is the rear cover structure schematic diagram of the gear case of another angle.
Fig. 4 is the power supply box structural representation of electronic supporting leg.
The specific embodiment
Below in conjunction with drawings and Examples, the invention will be further described.
As Figure 1-4, a kind of electronic supporting leg, comprises supporting leg, and described supporting leg comprises a left side, right supporting leg assembly, the tween drive shaft of connection left and right supporting leg assembly, on a left side, main gear transmission mechanism in right supporting leg assembly, also comprises the gear case and the motor that are arranged on one of them supporting leg assembly sidepiece, is provided with main output shaft 19 in described gear case, tertiary gear 21, high-speed drive gear 15, low gear 18, input bevel gear set, dead man mechanism, rocker, described tertiary gear is socketed on main output shaft, and described main output shaft connects left, main gear transmission mechanism in right supporting leg assembly, described input bevel gear set is driven by described motor, described high-speed drive gear 15, low gear 18 is by locating dowel pin (16, 17) be arranged on rocker (8,9) above and mesh with input bevel gear set, described dead man mechanism controls rocker swings on three different gears, makes described tertiary gear or meshes with high-speed drive gear, or meshing with low gear, or with height, low gear all departs from.
Described rocker comprises front rocker 8, rear rocker 9, described forward and backward rocker synchronously swings, on described front rocker, be provided with front rocker fixed orifice 81, on rear rocker, be provided with rear rocker fixed orifice 91, described front rocker fixed orifice 81 is arranged on the protecgulum of gear case, rear rocker fixed orifice 91 is arranged on the bonnet of gear case, and the installation shaft of described input bevel gear set is through described fixed orifice.On front rocker 8, be provided with some holes, comprise front rocker fixed orifice 81, high speed gear mounting hole 82, low speed gear mounting hole 83, dodge hole 84, put hole 85.Rocker fixed orifice 91, high speed gear mounting hole 92, low speed gear mounting hole 93 after arranging on rear rocker 9.Locating dowel pin 16 is fixedly mounted on high-speed drive gear 15 on the high speed gear mounting hole 92 of the high speed gear mounting hole 82 of front rocker, rear rocker, locating dowel pin 17 is fixedly mounted on low gear 18 on the low speed gear mounting hole 93 of the low speed gear mounting hole 83 of front rocker, rear rocker, and high, low speed transmission gear is installed between two rockers.The split-type structural of forward and backward pair of rocker makes to process convenient.During manipulation, the space length of rotation is less, and the positional precision of rotation is higher, and sensitivity is more accurate.And at the centre hole rotating, increased powder metallurgy sleeve, the precision cooperatively interacting is better, and the precision of rotation is more accurate.
Described input bevel gear set comprises chopped-off head bevel gear wheel 3, chopped-off head gear wheel shaft 2, described chopped-off head gear wheel shaft is fixedly mounted on the axis hole of chopped-off head bevel gear wheel 3, the flat tooth engaged transmission of described high-speed drive gear 15 and chopped-off head bevel gear wheel 3, described low gear 18 and chopped-off head gear wheel shaft 2 engaged transmission, the cone tooth of described chopped-off head bevel gear wheel 3 and bevel pinion 35 engagements, described bevel pinion 35 connects the output shaft of motor.
Described case lid comprises protecgulum 45 and bonnet 38, described dead man mechanism is arranged on the top of protecgulum, it comprises gear shift operating rod cam 24, joystick 29, sliding sleeve 26, bolt 41, described joystick 29 is inserted in the mounting hole of gear shift operating rod cam 24 and by bolt 41, both is fixedly connected with, the cam head of described gear shift operating rod cam 24 is inserted in sliding sleeve 26, and described sliding sleeve 26 is arranged in the pendulum hole 85 of front rocker 8 and can be in the pendulum interior slip in hole 85.The front/rear cover of gear case, the processing mode that adopts essence to cast, obtains blank and carries out numerical control machining afterwards again, finally obtains the product that dimensional accuracy is higher.Adopt precision casting technology, after can guaranteeing that product is placed for a long time, its shape and structure is indeformable, thereby guarantees product design.Solve mould punching processing mode structure and be easily out of shape and be out of shape irregular vice proper.
The inside sidewalls of described bonnet is provided with some reinforced ribs 1, and the inside sidewalls of protecgulum is provided with some reinforced ribs 1 equally.When high-power transmission, structure has the ability of stronger resistance to deformation, guarantees the stability of transmission of power.
The sidewall edge of described bonnet is provided with seal groove 11, and seal ring 46 is set in seal groove.
Also comprise the rubber pad 44 that is arranged on bonnet back.
Also comprise power supply box 10, the driving power of described power supply box 10 built-in motors.
Its principle of work is: when dead man mechanism is allocated to when middle part in neutral position state, high-speed drive gear 15 in rocker, low gear 18 all separate with tertiary gear 21, now, even electric motor starting, the power of motor still cannot be delivered on main output shaft 19, now can implement the rotation of driven by shaking main output shaft, realize manual regulation.When joystick 29 pulls out to high gear, gear shift operating rod cam 24 is flapped toward a side by sliding sleeve by forward and backward rocker, make high-speed drive gear 15 and tertiary gear 21 engagements, power is delivered to main output shaft 19 through flat tooth, high-speed drive gear 15, the tertiary gear 21 of chopped-off head bevel gear wheel 3, realizes transmission of power.In like manner, when joystick 29 pulls out to low gear, power is delivered to main output shaft 19 through chopped-off head gear wheel shaft 2, low gear 18, tertiary gear 21, the number of teeth that is less than low gear 18 and low gear 18 due to the number of teeth of chopped-off head gear wheel shaft 2 is less than tertiary gear 21, therefore, realized weakening of speed.
Claims (8)
1. an electronic supporting leg, comprise supporting leg, described supporting leg comprises a left side, right supporting leg assembly, the tween drive shaft that connects left and right supporting leg assembly, on a left side, main gear transmission mechanism in right supporting leg assembly, it is characterized in that: also comprise the gear case and the motor that are arranged on one of them supporting leg assembly sidepiece, in described gear case, be provided with main output shaft, tertiary gear, high-speed drive gear, low gear, input bevel gear set, dead man mechanism, rocker, described tertiary gear is socketed on main output shaft, described main output shaft connects left, main gear transmission mechanism in right supporting leg assembly, described input bevel gear set is driven by described motor, described high-speed drive gear, low gear is arranged on rocker and with input bevel gear set and meshes, described dead man mechanism controls rocker swings on three different gears, make described tertiary gear or mesh with high-speed drive gear, or mesh with low gear, or with height, low gear all departs from.
2. electronic supporting leg according to claim 1, it is characterized in that: described rocker comprises front rocker, rear rocker, described forward and backward rocker synchronously swings, on described forward and backward rocker, be respectively arranged with fixed orifice, described fixed orifice is arranged on respectively on the case lid of gear case, and the installation shaft of described input bevel gear set is through described fixed orifice.
3. electronic supporting leg according to claim 2, it is characterized in that: described input bevel gear set comprises chopped-off head bevel gear wheel, chopped-off head gear wheel shaft, described chopped-off head gear wheel shaft is fixedly mounted on the axis hole of chopped-off head bevel gear wheel, the flat tooth engaged transmission of described high-speed drive gear and chopped-off head bevel gear wheel, described low gear and chopped-off head gear wheel shaft engaged transmission, the cone tooth of described chopped-off head bevel gear wheel and bevel pinion engagement, described bevel pinion connects the output shaft of motor.
4. electronic supporting leg according to claim 3, it is characterized in that: described case lid comprises protecgulum and bonnet, described dead man mechanism is arranged on the top of protecgulum, it comprises gear shift operating rod cam, joystick, sliding sleeve, bolt, described bolt connects gear shift operating rod cam and joystick, the cam head of described gear shift operating rod cam is inserted in sliding sleeve, and described sliding sleeve is arranged in the pendulum hole of front rocker and can in pendulum hole, slides.
5. electronic supporting leg according to claim 4, is characterized in that: the inside sidewalls of described bonnet is provided with some reinforced ribs.
6. electronic supporting leg according to claim 5, is characterized in that: the sidewall edge of described bonnet is provided with seal groove, and seal ring is set in seal groove.
7. electronic supporting leg according to claim 6, is characterized in that: also comprise the rubber pad that is arranged on bonnet back.
8. electronic supporting leg according to claim 7, is characterized in that: also comprise power supply box, the driving power of described power supply box built-in motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410024384.0A CN103707860A (en) | 2014-01-20 | 2014-01-20 | Electric support leg |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410024384.0A CN103707860A (en) | 2014-01-20 | 2014-01-20 | Electric support leg |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103707860A true CN103707860A (en) | 2014-04-09 |
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ID=50401327
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410024384.0A Pending CN103707860A (en) | 2014-01-20 | 2014-01-20 | Electric support leg |
Country Status (1)
| Country | Link |
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| CN (1) | CN103707860A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105128828A (en) * | 2015-09-09 | 2015-12-09 | 广东富华工程机械制造有限公司 | Novel electric supporting leg |
| CN109017712A (en) * | 2018-09-12 | 2018-12-18 | 广东富华重工制造有限公司 | The gearshift of electronic trailer supporting leg and electronic trailer supporting leg |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2384840Y (en) * | 1999-07-02 | 2000-06-28 | 顺德富华工程机械制造有限公司 | Semi-trailer support device |
| US7207599B2 (en) * | 2003-11-24 | 2007-04-24 | Joseph Michel Noel Belliveau | Cross shaft for semitrailer landing gear |
| WO2009011865A2 (en) * | 2007-07-16 | 2009-01-22 | Cequent Trailer Products | Jack assembly |
| CN102951132A (en) * | 2012-11-09 | 2013-03-06 | 广东富华工程机械制造有限公司 | Electric gearbox of semitrailer supporting leg |
| CN203713845U (en) * | 2014-01-20 | 2014-07-16 | 广东富华工程机械制造有限公司 | Electric support leg |
-
2014
- 2014-01-20 CN CN201410024384.0A patent/CN103707860A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2384840Y (en) * | 1999-07-02 | 2000-06-28 | 顺德富华工程机械制造有限公司 | Semi-trailer support device |
| US7207599B2 (en) * | 2003-11-24 | 2007-04-24 | Joseph Michel Noel Belliveau | Cross shaft for semitrailer landing gear |
| WO2009011865A2 (en) * | 2007-07-16 | 2009-01-22 | Cequent Trailer Products | Jack assembly |
| CN102951132A (en) * | 2012-11-09 | 2013-03-06 | 广东富华工程机械制造有限公司 | Electric gearbox of semitrailer supporting leg |
| CN203713845U (en) * | 2014-01-20 | 2014-07-16 | 广东富华工程机械制造有限公司 | Electric support leg |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105128828A (en) * | 2015-09-09 | 2015-12-09 | 广东富华工程机械制造有限公司 | Novel electric supporting leg |
| WO2017041351A1 (en) * | 2015-09-09 | 2017-03-16 | 吴志强 | Novel electric supporting leg |
| CN109017712A (en) * | 2018-09-12 | 2018-12-18 | 广东富华重工制造有限公司 | The gearshift of electronic trailer supporting leg and electronic trailer supporting leg |
| CN109017712B (en) * | 2018-09-12 | 2024-05-14 | 广东富华重工制造有限公司 | Gear shifting mechanism of electric trailer support leg and electric trailer support leg |
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Legal Events
| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20160714 Address after: 528322 Guangdong Province, Shunde District Leliu street village committee, one of the village of Port Road, No. 9 Applicant after: GUANGDONG FUHUA MACHINERY EQUIPMENT MANUFACTURING CO., LTD. Address before: 528323, three, Huanglian Industrial Road, Leliu Town, Shunde District, Guangdong, Foshan Applicant before: Guangdong Fuwa Engineering Manufacturing Co., Ltd. |
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20140409 |