CN107237863B - Driving wheel with adjustable gear clearance - Google Patents
Driving wheel with adjustable gear clearance Download PDFInfo
- Publication number
- CN107237863B CN107237863B CN201710544423.3A CN201710544423A CN107237863B CN 107237863 B CN107237863 B CN 107237863B CN 201710544423 A CN201710544423 A CN 201710544423A CN 107237863 B CN107237863 B CN 107237863B
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- gear
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- wheel shaft
- driven gear
- port
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H1/00—Toothed gearings for conveying rotary motion
- F16H1/02—Toothed gearings for conveying rotary motion without gears having orbital motion
- F16H1/04—Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members
- F16H1/12—Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members with non-parallel axes
- F16H1/14—Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members with non-parallel axes comprising conical gears only
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/12—Arrangements for adjusting or for taking-up backlash not provided for elsewhere
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gear Transmission (AREA)
- General Details Of Gearings (AREA)
Abstract
The invention provides a driving wheel with adjustable gear clearance, comprising: a gear box; the driving gear is arranged in the gear box; the wheel axle is arranged in the gear box; the driven gear is arranged on the wheel shaft and meshed with the driving gear; the first adjusting module is arranged on the wheel shaft and axially moves on the wheel shaft to squeeze the driven gear, so that a gap between the driven gear and the driving gear is adjusted. The beneficial effects of the invention are as follows: the gap between the driving gear and the driven gear is adjusted, and machining errors can be eliminated during production and installation, so that the service life of the driving wheel is prolonged, and frequent damage is avoided.
Description
Technical Field
The invention belongs to the technical field of driving wheels of electric vehicles, and relates to a driving wheel with adjustable gear clearance.
Background
The drive wheel is the driving running part of the electric vehicle and the drive assembly drives the wheel in rotation to move the vehicle, and it is worth noting that the electric vehicle may preferably be an electric fork-lift truck, in particular a drive wheel on an electric fork-lift truck.
However, the existing driving wheel still has unreasonable gear clearance in production and installation, and the driving gear and the driven gear are inconvenient to install, so that errors can occur in production and installation, the service life of the driving wheel is reduced, and the driving wheel is also damaged frequently; there is a need for a drive wheel that eliminates machining errors during manufacturing and installation.
Disclosure of Invention
The invention aims to solve the problems in the prior art and provides a driving wheel with adjustable gear clearance.
The aim of the invention can be achieved by the following technical scheme: a drive wheel with adjustable gear lash comprising:
a gear box;
a drive gear disposed within the gearbox;
an axle disposed within the gearbox;
a driven gear provided on the wheel shaft, and meshed with the driving gear;
and a first adjusting module provided on the wheel shaft, and pressing the driven gear by moving axially on the wheel shaft, thereby adjusting a gap between the driven gear and the driving gear.
Preferably, the axle is further provided with a first bearing and a second bearing, two ends of the first bearing are in abutting connection with the driven gear and the first adjusting module, and the second bearing is located at the inner end of the axle.
Preferably, the gear box is internally provided with an inner port and an outer port corresponding to the inner port in parallel, the outer ring of the first bearing is arranged in the outer port, the inner ring is arranged at the outer end of the wheel shaft, and the outer ring of the second bearing is arranged in the inner port, and the inner ring is arranged at the outer ring of the wheel shaft.
Preferably, a second adjusting module capable of moving along the axial direction of the wheel shaft is arranged on the inner port, the second adjusting module is in abutting connection with the second bearing, and the second adjusting module presses the outer ring of the second bearing through axial movement so as to adjust the gap of the second bearing.
Preferably, the gear box is provided with a fixing screw corresponding to the outer port in a penetrating mode, and the fixing screw is abutted to the first adjusting module and used for limiting the movement of the first adjusting module.
Preferably, the first adjusting module is a first adjusting screw ring with external threads, the external port is provided with internal threads, and the first adjusting screw ring is in threaded connection with the external port and axially moves on the wheel shaft through threads.
Preferably, the second adjusting module is a second adjusting screw ring with external threads, the inner port is provided with internal threads, and the second adjusting screw ring is connected in the inner port in a threaded manner and moves along the axial direction of the wheel shaft through threads.
Preferably, a gear shaft is vertically arranged in the gear box, the gear shaft is horizontally arranged, and the driving gear and the driven gear are bevel gears.
Preferably, a fastening nut is sleeved on the inner end of the wheel shaft, and the fastening nut is abutted against the second bearing, so that the axial movement of the second bearing is limited.
Preferably, a spacer bush is further arranged on the wheel shaft, and two ends of the spacer bush are in abutting connection with the second bearing and the driven gear.
Compared with the prior art, the invention has the beneficial effects that:
1. the gap between the driving gear and the driven gear is adjusted, and machining errors can be eliminated during production and installation, so that the service life of the driving wheel is prolonged, and frequent damage is avoided.
2. The outer port downside is provided with set screw, and set screw can upwards remove through the screw thread to withstand first adjusting module, restrict its removal.
3. The first adjusting screw ring is screwed to move on the wheel shaft and extrude the driven gear, and the purpose is achieved in a threaded transmission mode, so that the adjusting precision can be further improved, the processing error is eliminated, and the operation is more simple and reliable.
4. When the second adjusting screw ring extrudes the second bearing, the driven gear is extruded by the spacer bush to move towards the direction of the first adjusting screw ring, so that the gap between the driven gear and the driving gear can be reduced, the gap between the driven gear and the driving gear can be increased, the adjusting function is more perfect, and the driving gear and the driven gear can be conveniently adjusted to the optimal gap, thereby eliminating the machining error; and the spacer bush can also transmit extrusion force to the first bearing during extrusion, so that the gap between the first bearing and the second bearing can be conveniently adjusted.
Drawings
FIG. 1 is a block diagram of a drive wheel of the present invention;
FIG. 2 is a schematic diagram of a gear box and a first and second adjustment modules according to the present invention;
fig. 3 is a schematic overall structure of the driving wheel of the present invention.
100, a gear box; 110. an outer port; 120. an inner port; 130. a fixing screw; 140. a gear shaft; 200. a drive gear; 300. a wheel axle; 310. a first bearing; 320. a second bearing; 330. a fastening nut; 340. a spacer bush; 400. a driven gear; 500. a first adjustment module; 600. and a second adjustment module.
Detailed Description
The following are specific embodiments of the present invention and the technical solutions of the present invention will be further described with reference to the accompanying drawings, but the present invention is not limited to these embodiments.
As shown in fig. 1, 2 and 3, a driving wheel with adjustable gear clearance is preferably applied to an electric vehicle, and particularly can be applied to an electric forklift, and comprises: gearbox 100, drive gear 200, axle 300, driven gear 400, and first adjustment module 500; compared with the traditional driving wheel, the gap between the driving gear 200 and the driven gear 400 can be adjusted, the adjusting steps are fewer, the operation is simpler, and the adjusting precision is higher.
The gear box 100 is a box-shaped object, and has an inner cavity, and the upper end of the gear box 100 is further connected with a driving device, in short, a driving motor is arranged on the gear box 100, and the driving motor drives the driving gear 200 in the gear box 100 to rotate, so that the functions of transmitting power and reducing speed are achieved.
In the present driving wheel, the gear case 100 is mainly used for installing the first adjusting module 500, the driving gear 200 and the driven gear 400, and the driving gear 200 and the driven gear 400 can be positioned at a proper position, so that the first adjusting module 500 can adjust the gap between the driving gear and the driven gear 400.
The driving gear 200 is a gear coupled to the driving motor and is disposed in the gear case 100.
In an actual product, the gear case 100 has a gear shaft 140 vertically disposed therein, an upper end of the gear shaft 140 has a gear engaged with a motor shaft gear of the driving motor, and a lower end of the gear shaft 140 has a driving gear 200; when the driving motor rotates, the gear drives the gear shaft 140 to rotate, thereby rotating the driving gear 200.
Preferably, tapered roller bearings may be provided between the gear shaft 140 and the gear case 100.
An axle 300 is disposed within the gearbox 100.
It should be noted here that the axle 300 is horizontally disposed, and both ends of the axle 300 are penetrated through the gear case 100, thereby achieving a rotating effect, and the axle 300 is actually a stepped shaft structure.
The driven gear 400 is a gear component driven by the driving gear 200, and is disposed on the axle 300, for driving the axle 300 to rotate, and the driven gear 400 is meshed with the driving gear 200; and the driven gear 400 is preferably keyed to the axle 300.
It should be noted that, when the driving gear 200 is meshed with the driven gear 400, a certain gap exists between the driving gear 200 and the driven gear 400, and in the conventional driving wheel, the gap is very difficult to adjust, which results in great assembly difficulty and thus causes machining errors, so that the driving gear 200 and the driven gear 400 are easy to be damaged during transmission, and the service life is reduced.
The first adjusting module 500 is a component capable of adjusting the position of the driven gear 400, and is disposed on the axle 300, and further, the first adjusting module 500 has a hole through which the axle 300 is inserted, so that the first adjusting module 500 is sleeved on the axle 300 and is located outside the driven gear 400.
And the first adjustment module 500 presses the driven gear 400 by axially moving on the axle 300, thereby adjusting a gap between the driven gear 400 and the driving gear 200.
In an actual structure, the outer end surface of the first adjustment module 500 may be inserted into the opening of the gear case 100, and it may be preferable to provide external threads on the first adjustment module 500 and internal threads on the opening of the gear case 100, and the external threads and the internal threads may be axially moved by the threads, or the external threads and the internal threads may be connected by interference, and the driven gear 400 may be pressed by pressing the first adjustment module 500.
Here, the clearance between the driven gear 400 and the driving gear 200 is preferably adjusted by axially moving the screw, and when the first adjustment module 500 is screwed during adjustment, the first adjustment module 500 can be moved toward the driven gear 400, so that the clearance between the driving gear 200 and the driven gear 400 is gradually adjusted, and the purpose of eliminating the machining error is achieved.
As shown in fig. 1 and 3, the axle 300 is further provided with a first bearing 310 and a second bearing 320, wherein the first bearing 310 and the second bearing 320 are actually located at two ends of the axle 300, respectively, and serve to fix the position of the axle 300 and enable the axle 300 and the gear box 100 to maintain relative rotation.
Further, the outer races of the first bearing 310 and the second bearing 320 are actually fixed to the gear case 100, and the inner race is fixed to the axle 300.
The two ends of the first bearing 310 are in interference connection with the driven gear 400 and the first adjusting module 500, and the second bearing 320 is located at the inner end of the wheel axle 300.
Since the first bearing 310 is located between the driven gear 400 and the first adjustment module 500, when the first adjustment module 500 moves toward the inside of the wheel shaft 300, the outer ring of the first bearing 310 is first pressed, and the first bearing 310 transmits the thrust to the driven gear 400, so that the first bearing 310 and the driven gear 400 move toward the driving gear 200 at the same time.
This structure is very reasonable, and when fine machining errors are adjusted, the errors of the first bearing 310 can be adjusted, so that the front end surfaces of the inner rings of the first bearing 310 and the driven gear 400 are tightly abutted against the rear end of the driven gear 400.
As shown in fig. 1 and 2, on the basis of the above embodiment, the gear box 100 is provided with an inner port 120 and an outer port 110 corresponding to the inner port 120 in parallel, the inner port 120 and the outer port 110 are preferably circular, the outer port 110 is matched with the outer ring of the first bearing 310 in shape and size, the inner port 120 is matched with the outer ring of the second bearing 320 in shape and size, so that the first bearing 310 and the second bearing 320 can be conveniently installed, and it is worth noting here that the outer port 110 and the center line of the inner port 120 are coaxially arranged. This enables smooth installation of the wheel axle 300.
The outer race of the first bearing 310 is disposed within the outer port 110 and the inner race is disposed on the outer end of the axle 300, and the outer race of the second bearing 320 is disposed within the inner port 120 and the inner race is disposed on the outer race of the axle 300.
As shown in fig. 1 and 2, in the above embodiment, the second adjustment module 600 is provided on the inner port 120 so as to be movable in the axial direction of the wheel axle 300, and the second adjustment module 600 is actually provided outside the second bearing 320.
The second adjustment module 600 is in interference connection with the second bearing 320, and the second adjustment module 600 presses the outer ring of the second bearing 320 by axial movement to adjust the gap of the second bearing 320.
Specifically, the second adjustment module 600 is capable of adjusting the spacing between the first bearing 310 and the second bearing 320 and the gap of the second bearing 320; the second adjustment module 600 may be preferably disposed in the inner port 120, and may be provided with an internal thread in the inner port 120, and an external thread is disposed on an outer circumference of the second adjustment module 600 to axially move by means of a screw connection, so that the second adjustment module 600 presses the second bearing 320 upon screwing the second adjustment module 600, thereby moving the second bearing 320, thus functioning to adjust a pitch.
It should be noted that a spacer 340 may be further disposed between the second bearing 320 and the driven gear 400, and when the second bearing 320 is pressed by the second adjusting module 600, the driven gear 400 can be pressed by the spacer 340 to move the driven gear 400 towards the outer side of the wheel axle 300, so that the adjusting gap is further optimized and the error is eliminated, and the overall adjusting function and structure are more perfect.
As shown in fig. 1, 2 and 3, in the actual installation and debugging process, the driven gear 400 and the first bearing 310 are first penetrated from one end of the wheel shaft 300 and fixed with the wheel shaft 300 by means of a key connection, at this time, the driven gear 400 is engaged with the driving gear 200, then the spacer 340 and the second bearing 320 are installed on the wheel shaft, and the fastening nut 330 is installed, so that the axial movement of the spacer 340 and the second bearing 320 is limited, and then the first adjusting module 500 and the second adjusting module 600 are screwed into both ends of the wheel shaft 300, so that the installation gap between the driven gear 400 and the driving gear 200 is adjusted, and the gap between the first bearing 310 and the second bearing 320 is also adjusted, and at the same time, the above components are clamped on the wheel shaft 330.
As shown in fig. 1 and 2, on the basis of the above embodiment, the gear case 100 is provided with the fixing screw 130 corresponding to the outer port 110, that is, the fixing screw 130 is simply disposed at the lower side of the outer port 110, and the fixing screw 130 can move upwards through threads, so as to support the first adjusting module 500, that is, the fixing screw 130 can play a role in preventing loosening of the first adjusting module 500.
The fixing screw 130 abuts against the first adjustment module 500 to limit the movement of the first adjustment module 500.
In the actual working process, when the gap between the driving gear 200 and the driven gear 400 needs to be adjusted, the fixing screw 130 can be unscrewed first, so that the fixing screw 130 is separated from the first adjusting module 500, then the first adjusting module 500 is screwed, so that the first adjusting module 500 extrudes the driven gear 400, and after eliminating the machining error, the fixing screw 130 is screwed again, so that the first adjusting module 500 is locked to avoid the movement.
As shown in fig. 2, based on the above embodiment, the first adjusting module 500 is a first adjusting screw with external threads, the outer ring surface of the first adjusting screw is sized and shaped to fit the outer port 110, and the inner ring surface is sized and shaped to fit the axle 300.
The outer port 110 has internal threads thereon, and the first adjuster screw is threadedly coupled within the outer port 110 and axially movable on the axle 300 by threads.
It should be noted that the first adjusting screw is further provided with an oil seal, the lower end surface of the oil seal abuts against the surface of the wheel axle 300, sundries are prevented from entering the gear box 100, and a sealing ring is further arranged inside the outer side of the first adjusting screw.
In the actual working process, the first adjusting screw ring is screwed to move on the wheel shaft 300 and extrude the driven gear 400, and the purpose is achieved in a threaded transmission mode, so that the adjusting precision can be further improved, the operation is simpler when the processing error is eliminated, and the operation is more reliable.
As shown in fig. 2, in the above embodiment, the second adjusting module 600 is a second adjusting screw with external threads, and the outer ring surface of the second adjusting screw is sized and shaped to be matched with the inner port 120.
The inner port 120 has an internal thread thereon, and the second adjusting screw is screw-coupled in the inner port 120 and is screw-moved in the axial direction of the wheel shaft 300.
It should be noted that the second adjusting screw is provided with a locking screw which abuts against the inner port 120, and the locking screw can prevent the second adjusting screw from loosening.
In the actual working process, the second adjusting screw is screwed to move along the axial direction of the wheel axle 300 on the inner port 120, the secondary bearing 320 is extruded, the gap of the bearing is adjusted, and the purpose is achieved in a threaded transmission mode, so that the adjusting precision can be further improved, the processing error is eliminated, and the operation is simpler and more reliable.
It should be noted that, the hub 300 is further provided with a spacer 340, and two ends of the spacer 340 are in abutting connection with the second bearing 320 and the driven gear 400, when the second adjusting screw is pressed against the second bearing 320, the driven gear 400 is pressed by the spacer 340, so that the driven gear 400 moves toward the first adjusting screw.
By the design, the gap between the driven gear 400 and the driving gear 200 can be reduced, the gap between the driven gear 400 and the driving gear 200 can be increased, the adjusting function is more perfect, the driving gear 200 and the driven gear 400 can be conveniently adjusted to the optimal gap, and therefore machining errors are eliminated.
Further, the spacer 340 can also transmit the extrusion force to the first bearing 310 during extrusion, so as to adjust the gap between the first bearing 310 and the second bearing 320.
As shown in fig. 1 and 3, in the above embodiment, a gear shaft 140 is vertically disposed in the gear box 100, the wheel shaft 300 is horizontally disposed, and the driving gear 200 and the driven gear 400 are bevel gears.
As shown in fig. 1 and 3, in the above embodiment, the fastening nut 330 is sleeved on the inner end of the axle 300, and the fastening nut 330 abuts against the second bearing 320, so as to limit the axial movement of the second bearing 320, that is, simply, the end of the innermost end of the axle 300 is provided with the fastening nut 330, so that the maximum stroke of the second bearing 320 during adjustment can be limited, and each component on the axle 300 can be locked axially.
The specific embodiments described herein are offered by way of example only to illustrate the spirit of the invention. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.
Claims (6)
1. A drive wheel with adjustable gear lash comprising:
a gear box;
a drive gear disposed within the gearbox;
an axle disposed within the gearbox;
a driven gear provided on the wheel shaft, and meshed with the driving gear;
a first adjustment module provided on the wheel shaft, and pressing the driven gear by moving axially on the wheel shaft, thereby adjusting a gap between the driven gear and the driving gear;
the wheel shaft is also provided with a first bearing and a second bearing, two ends of the first bearing are in abutting connection with the driven gear and the first adjusting module, and the second bearing is positioned at the inner end of the wheel shaft;
an inner port and an outer port which corresponds to the inner port in parallel are formed in the gear box, the outer ring of the first bearing is arranged in the outer port, the inner ring is arranged on the outer end of the wheel shaft, and the outer ring of the second bearing is arranged in the inner port, and the inner ring is arranged on the outer ring of the wheel shaft;
the inner port is provided with a second adjusting module capable of moving along the axial direction of the wheel shaft, the second adjusting module is in abutting connection with the second bearing, and the second adjusting module presses the outer ring of the second bearing through axial movement so as to adjust the gap of the second bearing;
the gear box is provided with a fixing screw corresponding to the outer port in a penetrating mode, and the fixing screw is abutted to the first adjusting module and used for limiting the first adjusting module to move.
2. The adjustable gear clearance drive wheel of claim 1, wherein: the first adjusting module is a first adjusting screw ring with external threads, the external port is provided with internal threads, and the first adjusting screw ring is in threaded connection with the external port and axially moves on the wheel shaft through threads.
3. The adjustable gear clearance drive wheel of claim 1, wherein: the second adjusting module is a second adjusting screw ring with external threads, the inner port is provided with internal threads, and the second adjusting screw ring is connected in the inner port in a threaded manner and moves along the axial direction of the wheel shaft through threads.
4. The adjustable gear clearance drive wheel of claim 1, wherein: the gear box is internally and vertically provided with a gear shaft, the gear shaft is horizontally arranged, and the driving gear and the driven gear are bevel gears.
5. The adjustable gear clearance drive wheel of claim 1, wherein: the inner end of the wheel shaft is sleeved with a fastening nut which is abutted against the second bearing, so that the axial movement of the second bearing is limited.
6. The adjustable gear clearance drive wheel of claim 1 or 5, wherein: and a spacer bush is further arranged on the wheel shaft, and two ends of the spacer bush are in abutting connection with the second bearing and the driven gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710544423.3A CN107237863B (en) | 2017-07-06 | 2017-07-06 | Driving wheel with adjustable gear clearance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710544423.3A CN107237863B (en) | 2017-07-06 | 2017-07-06 | Driving wheel with adjustable gear clearance |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107237863A CN107237863A (en) | 2017-10-10 |
| CN107237863B true CN107237863B (en) | 2023-10-20 |
Family
ID=59990287
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710544423.3A Active CN107237863B (en) | 2017-07-06 | 2017-07-06 | Driving wheel with adjustable gear clearance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107237863B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109538749A (en) * | 2018-11-26 | 2019-03-29 | 陕西海力特精密机械有限公司 | Adjustment structure for bevel gear back lash |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE9319187U1 (en) * | 1993-12-14 | 1995-01-19 | Hurth Getriebe und Zahnräder GmbH i.K., 80809 München | Drive unit for an industrial truck consisting of electric motor and gearbox |
| US5445237A (en) * | 1993-12-27 | 1995-08-29 | Nsk Ltd. | Electric power steering apparatus |
| CN2905529Y (en) * | 2006-05-24 | 2007-05-30 | 储吉旺 | Electric vertical driving wheel |
| DE102006021679A1 (en) * | 2006-05-10 | 2007-11-22 | Zf Friedrichshafen Ag | Industrial truck`s drive, has ring gear connected with driven shaft by gear tooth system in torque-proof manner, where inner rings of bearing are prestressed along axis of rotation of gear, and nut is secured over lock nut against rotation |
| DE102010062289A1 (en) * | 2010-12-01 | 2012-06-21 | Zf Friedrichshafen Ag | Steerable drive assembly e.g. traction drive, for fork-lift truck, has guidance rim connected with inner ring of bearing, and gearing that is arranged on driving-wheel at opposite side of horizontally aligned vehicle frame |
| CN103644291A (en) * | 2013-12-19 | 2014-03-19 | 方盛车桥（柳州）有限公司 | Method for adjusting axial endplay gap of closed main reducer driving gear |
| CN206889579U (en) * | 2017-07-06 | 2018-01-16 | 宁波如意股份有限公司 | A kind of driving wheel in adjustable gear gap |
-
2017
- 2017-07-06 CN CN201710544423.3A patent/CN107237863B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE9319187U1 (en) * | 1993-12-14 | 1995-01-19 | Hurth Getriebe und Zahnräder GmbH i.K., 80809 München | Drive unit for an industrial truck consisting of electric motor and gearbox |
| US5445237A (en) * | 1993-12-27 | 1995-08-29 | Nsk Ltd. | Electric power steering apparatus |
| DE102006021679A1 (en) * | 2006-05-10 | 2007-11-22 | Zf Friedrichshafen Ag | Industrial truck`s drive, has ring gear connected with driven shaft by gear tooth system in torque-proof manner, where inner rings of bearing are prestressed along axis of rotation of gear, and nut is secured over lock nut against rotation |
| CN2905529Y (en) * | 2006-05-24 | 2007-05-30 | 储吉旺 | Electric vertical driving wheel |
| DE102010062289A1 (en) * | 2010-12-01 | 2012-06-21 | Zf Friedrichshafen Ag | Steerable drive assembly e.g. traction drive, for fork-lift truck, has guidance rim connected with inner ring of bearing, and gearing that is arranged on driving-wheel at opposite side of horizontally aligned vehicle frame |
| CN103644291A (en) * | 2013-12-19 | 2014-03-19 | 方盛车桥（柳州）有限公司 | Method for adjusting axial endplay gap of closed main reducer driving gear |
| CN206889579U (en) * | 2017-07-06 | 2018-01-16 | 宁波如意股份有限公司 | A kind of driving wheel in adjustable gear gap |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107237863A (en) | 2017-10-10 |
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