CN111379836B - Multi-section flexible transmission mechanism of forklift and using method thereof - Google Patents
Multi-section flexible transmission mechanism of forklift and using method thereof Download PDFInfo
- Publication number
- CN111379836B CN111379836B CN202010166055.5A CN202010166055A CN111379836B CN 111379836 B CN111379836 B CN 111379836B CN 202010166055 A CN202010166055 A CN 202010166055A CN 111379836 B CN111379836 B CN 111379836B
- Authority
- CN
- China
- Prior art keywords
- transverse
- threaded rod
- transmission shaft
- driven wheel
- sleeve
- 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.)
- Active
Links
Images
Classifications
-
- 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
- F16H35/00—Gearings or mechanisms with other special functional features
- F16H35/10—Arrangements or devices for absorbing overload or preventing damage by overload
-
- 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
- B66F17/00—Safety devices, e.g. for limiting or indicating lifting force
- B66F17/003—Safety devices, e.g. for limiting or indicating lifting force for fork-lift trucks
-
- 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
- B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
- B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
- B66F9/075—Constructional features or details
- B66F9/07568—Steering arrangements
-
- 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
- B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
- B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
- B66F9/075—Constructional features or details
- B66F9/07572—Propulsion arrangements
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Transportation (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Steering-Linkage Mechanisms And Four-Wheel Steering (AREA)
Abstract
The invention relates to a multi-section flexible transmission mechanism of a forklift and a using method thereof, belonging to the technical field of forklift part equipment. The mechanism comprises a longitudinal transmission system and a transverse transmission system; one end of the longitudinal transmission system is connected with the transverse transmission system in a tooth structure matching mode; the transverse transmission system comprises a driven wheel which is fixedly arranged on a transverse transmission shaft, and a longitudinal transmission shaft, wherein one end of the longitudinal transmission shaft is connected with a threaded rod by adopting a universal joint, and the other end of the longitudinal transmission shaft is connected with a power source; a threaded rod; the inner frame is sleeved at two ends of the threaded rod; the shell is arranged at the periphery of the driven wheel and limits the threaded rod and the inner frame in the shell; the protruding part is a sunken structure formed on the inner wall of the shell, and a spring is arranged in the sunken structure.
Description
Technical Field
The invention relates to the technical field of forklift part equipment, in particular to a multi-section flexible transmission mechanism of a forklift and a using method thereof.
Background
On one hand, the forklift is used for forking, loading and transporting goods, in most cases, the goods carried by the forklift cannot shake, and for light goods, the shaking of the goods can cause the goods to swing, so that the goods are easy to topple; for heavy goods, the shaking of the goods can cause the unstable shaking of the goods and the forklift as a whole.
On the other hand, the power of the forklift is strong, a lot of control is not thorough to the vehicle, or the driver who estimates the goods weight of delivery is wrong controls the forklift, it is excessive to add the tank door more easily, lead to the vehicle to pause and feel and strengthen, the goods rocks seriously, the potential safety hazard increases.
In order to better solve the problems that the vehicle is strong in pause and frustrate, cargos shake seriously and the safety of cargos and personnel is influenced due to the fact that driving conditions are not thorough and accelerator brake control is not accurate, people urgently need a mechanism capable of overcoming the pause and frustration of a forklift.
Disclosure of Invention
1. Problems to be solved
Aiming at the problems of high vehicle pause and frustration and unstable goods caused by improper operation in the prior art, the invention provides a multi-section flexible transmission mechanism of a forklift and a use method thereof.
2. Technical scheme
In order to solve the above problems, the present invention adopts the following technical solutions.
A multi-section flexible transmission mechanism of a forklift comprises a longitudinal transmission system and a transverse transmission system; one end of the longitudinal transmission system is connected with the transverse transmission system in a tooth structure matching mode and is used for driving the transverse transmission system; the transverse transmission system comprises:
the driven wheel is fixedly arranged on the transverse transmission shaft and is used for driving the transverse steering system to act through the transverse transmission shaft;
one end of the longitudinal transmission shaft is connected with a threaded rod by adopting a universal joint, and the other end of the longitudinal transmission shaft is connected with a power source;
the threaded rod is used for driving the driven wheel to rotate;
the inner frame is sleeved at two ends of the threaded rod and used for supporting the threaded rod;
the shell is arranged at the periphery of the driven wheel and limits the threaded rod and the inner frame in the shell;
the protruding part is a sunken structure formed on the inner wall of the shell, and a spring is arranged in the sunken structure;
and one end of the spring is propped against the inner frame, and the other end of the spring is propped against the shell and is used for pressing the inner frame and the threaded rod on the driven wheel.
Preferably, the transverse transmission shaft penetrates through the axle center of the driven wheel and penetrates through the shell; two ends of the transverse transmission shaft are respectively provided with a transverse pulling mechanism group;
the transverse pulling mechanism group comprises an inner sleeve which is sleeved at the end part of the transverse transmission shaft in a thread matching mode; the periphery of the inner sleeve is provided with an outer sleeve in a thread matching mode; the length of the inner sleeve is shorter than that of the outer sleeve, so that the inner sleeve is positioned on one side of the inner structure of the outer sleeve after being completely screwed into the outer sleeve, and a cavity is reserved on the other side of the inner structure of the outer sleeve; one end of the inner sleeve is provided with a flange plate, the flange plate is provided with a through hole, and the end part of the outer sleeve is provided with a threaded hole corresponding to the through hole so as to fix the inner sleeve and the outer sleeve with bolts;
an end hole is formed in one end, close to the cavity, of the outer sleeve; the cavity is of a spherical structure, and a rotating ball head is arranged in the cavity; and a transverse pull rod is arranged on the rotating ball head and penetrates through the end hole to extend outwards.
Preferably, an end face, far away from the flange, of the inner sleeve is provided with a concave cambered surface, and the concave cambered surface is a part forming a cavity structure.
Preferably, the periphery of the rotating ball head is provided with a dustproof corrugated sleeve which is sleeved on the outer sleeve and the tie rod.
Preferably, the position where the longitudinal transmission shaft is connected with the threaded rod is positioned inside the shell;
the thread turning directions of the two ends of the transverse transmission shaft are the same.
Preferably, the inner frame is provided with a guide post, the spring is sleeved on the guide post, and the length of the guide post is shorter than the limit compression length of the spring.
Preferably, the driven wheel is a worm wheel; the threaded rod is a worm; the driven wheel and the threaded rod are connected with each other in a worm and gear connection mode.
Preferably, the threaded rod is a lead screw, and a ball screw sleeve is matched on the threaded rod; the ball screw housing is engaged with the driven wheel by means of a tooth structure provided on the outside thereof.
The use method of the multi-section flexible transmission mechanism of the forklift comprises the following steps:
s1, power source driving: the vehicle engine is used as a power source, the rotating power of the engine is output to the longitudinal transmission shaft, and then the longitudinal transmission shaft drives the threaded rod to rotate;
s2, transmission state adjustment: the longitudinal transmission shaft adopts a worm and gear driving mode or adopts a ball screw to push the driven wheel to rotate, and in the process, when the elastic coefficients of the springs are different, the meshing tightness between the threaded rod and the driven wheel is also different; when the elastic coefficient of the spring is small and the extrusion force of the spring on the threaded rod is insufficient, the threaded rod and the driven wheel are easy to disengage, so that the transmission overload is interrupted; the limit of different torque limits can be adapted by replacing springs with different elastic coefficients or adjusting the elastic force of the springs, so that the instantaneous overload of a transmission system is avoided;
s3, transverse power transmission: the driven wheel rotates through the transverse transmission shaft, so that the transverse pulling mechanism groups on the two sides respectively move to the same side, and the same-direction push-pull adjustment of the wheels is realized;
s4, adaptive rotation of a ball head: a spherical cavity matched with the shape and the size of the rotary ball head is formed between the concave cambered surface on the end surface of the inner sleeve and the inner cavity of the outer sleeve, in the push-pull process of the tie rod, the tie rod connected with the rotary ball head swings relative to the transverse transmission shaft to adapt to the movement of the wheels, and the rotary ball head rotates relative to the cavity to realize adaptive adjustment.
3. Advantageous effects
Compared with the prior art, the invention has the beneficial effects that:
(1) the invention utilizes the universal joint to convert the direct transmission of the straight rod into the flexible transmission capable of changing the transmission angle, and aims to realize different driving states of the threaded rod on the driven wheel and set different torque limits for the driving engagement of the threaded rod on the driven wheel; namely, when the elastic coefficient of the spring is extremely large, the threaded rod can be always meshed with the driven wheel, and the threaded rod can transmit extremely large torque to the driven wheel (on the premise that the tooth structure and the rod structure can bear the load); and after the elastic coefficient of the spring is reduced, the torque limit born by the transmission system is reduced, and when the transmission system is overloaded, the threaded rod can be disengaged from the driven wheel, so that the over-limit torque is prevented from being applied to the driven wheel, the impulse of the vehicle is avoided, and the smooth running of the vehicle is ensured under the preset limit.
(2) The invention applies the system to a steering system, namely a shaft provided with a driven wheel is a mechanism connected with a tie rod for controlling the steering of a vehicle, so that the technical scheme of the invention can provide limitation for the steering limit of the vehicle. Because the engineering vehicle does not have a vision sensor which is possessed by a traditional car, obstacles existing around wheels are difficult to find, a vehicle steering auxiliary system does not provide identification help for a driver, and in the use process of the engineering vehicle, the increase of the vehicle steering resistance is often caused by goods or waste articles existing nearby the vehicle.
(3) The transverse pulling mechanism group adopts a double-sleeve structure that an inner sleeve and an outer sleeve are matched for use, wherein the inner sleeve is screwed into the outer sleeve, the inner wall surface of the inner sleeve is provided with a thread structure, so that a transverse transmission rod rotates in the inner sleeve, and one end of the inner sleeve, which is far away from the transverse transmission rod, forms an inwards concave cambered surface to form a component part of a space for accommodating a rotating ball head; compared with the mode of directly screwing the transverse transmission rod in the outer sleeve, the cavity structure formed by the end surface of the inner sleeve is fixed, and the rotating ball head is ensured to have a stable action environment.
(4) In order to prevent the inner sleeve from falling off from the outer sleeve under the driving of the transverse transmission rod, the end part of the inner sleeve is fixedly arranged on the outer sleeve by adopting a flange plate, and is positioned at the end part relative to the fastening position, so that the functions and actions of the inner sleeve and the outer sleeve are not influenced.
(5) In order to realize convenient adjustment and replacement of the overload limit, the spring is sleeved in the protruding part on the shell, and the protruding part is screwed on the shell in a threaded connection mode, so that the protruding part can be flexibly opened as required to replace the spring.
Drawings
FIG. 1 is a schematic structural view of a longitudinal transmission system according to embodiment 1 of the present invention;
fig. 2 is a schematic structural view of a transverse transmission system according to embodiment 1 of the present invention.
In the figure:
1. a driven wheel; 2. a transverse transmission shaft; 3. a longitudinal drive shaft; 4. a universal joint; 5. a threaded rod; 6. an inner frame; 8. a spring; 9. a protrusion; 10. a transverse pulling mechanism group; 11. an inner sleeve; 12. a jacket; 13. a cavity; 14. a flange plate; 15. rotating the ball head; 16. a tie rod; 17. a dust-proof corrugated sleeve; 18. and (6) a guide pillar.
Detailed Description
In order to make the technical means, the creation features, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the embodiment.
Example 1
As shown in fig. 1 to 2, a multi-section flexible transmission mechanism of a forklift comprises a longitudinal transmission system and a transverse transmission system; one end of the longitudinal transmission system is connected with the transverse transmission system in a tooth structure matching mode and is used for driving the transverse transmission system; the transverse transmission system comprises:
the driven wheel 1 is fixedly arranged on the transverse transmission shaft 2 and used for driving a transverse steering system to act through the transverse transmission shaft 2, and the driven wheel is specifically a worm wheel in the embodiment;
one end of the longitudinal transmission shaft 3 is connected with a threaded rod 5 by adopting a universal joint 4, and the other end of the longitudinal transmission shaft 3 is connected with a power source, wherein the power source is a gearbox driven by a power supply or a fuel engine;
the threaded rod 5 is used for driving the driven wheel 1 to rotate, and in the embodiment, the driven wheel 1 adopts a worm wheel structure, so the threaded rod 5 matched with the driven wheel adopts a worm structure;
the inner frame 6 is in an inverted U shape and comprises a bottom plate and two supporting plates which are respectively arranged at two ends of the bottom plate, the supporting plates are respectively sleeved at two ends of the threaded rod 5 and used for supporting the threaded rod 5, and a bearing is arranged between each supporting plate and the threaded rod 5;
the shell is arranged on the periphery of the driven wheel 1 and used for limiting the threaded rod 5 and the inner frame 6 in the shell;
the protruding part 9 is a sunken structure integrally formed on the inner wall of the shell, and a spring 8 is arranged in the sunken structure;
one end of the spring 8 is abutted against the inner frame 6, and the other end of the spring is abutted against the shell and is used for pressing the inner frame 6 and the threaded rod 5 on the driven wheel 1; to provide guidance for the spring, guide posts 18 are provided on the inner frame 6. The spring 8 is sleeved on the guide post 18, and the length of the guide post 18 is shorter than the limit compression length of the spring 8, so that the guide post 18 is prevented from abutting against the inner wall of the shell after the spring 8 is compressed.
In order to apply the above technical solution to the field of vehicle steering control, the present application further provides the following technical solution:
the transverse transmission shaft 2 penetrates through the axle center of the driven wheel 1 and penetrates through the shell, and two ends of the transverse transmission shaft 2 are respectively provided with a transverse pulling mechanism group 10; wherein, all the structures that pass the casing all are equipped with the sealing washer in passing the position, and follow-up no longer gives details.
The transverse pulling mechanism group 10 comprises an inner sleeve 11 which is sleeved on the end part of the transverse transmission shaft 2 in a thread matching mode; the periphery of the inner sleeve 11 is provided with an outer sleeve 12 in a thread matching mode; the length of the inner sleeve 11 is shorter than that of the outer sleeve 12, so that the inner sleeve 11 is positioned at one side of the internal structure of the outer sleeve 12 after being completely screwed into the outer sleeve 12, and a cavity 13 is reserved at the other side of the internal structure of the outer sleeve 12; the end surface of the inner sleeve 11 far away from the flange plate 14 is provided with a concave cambered surface which is a part of a structure forming the cavity 13.
Further, in order to avoid the uncontrolled rotation of the inner sleeve relative to the outer sleeve caused by the nesting and screwing of the three parts, in the embodiment, one end of the inner sleeve 11 is provided with a flange 14, the flange 14 is provided with a through hole, and the end of the outer sleeve 12 is provided with a threaded hole corresponding to the through hole, so that the inner sleeve 11 and the outer sleeve 12 are fixed to each other by penetrating a bolt into the threaded hole through the through hole.
One end of the outer sleeve 12 close to the cavity 13 is provided with an end hole; the cavity 13 is a spherical structure, a rotating ball head 15 is arranged in the cavity, and an inward concave cambered surface arranged at the end part of the inner sleeve is an inner wall surface forming one side of the spherical cavity. And a tie rod 16 is arranged on the rotating ball head 15, and the tie rod 16 penetrates through the end hole and extends outwards to be used for a steering part on a push-pull wheel system and controlling the steering of the wheels. In order to realize the equidirectional adjustment of the tie rods 16 on the two sides, the thread directions of the two ends of the transverse transmission shaft 2 are the same.
The periphery of the rotating ball head 15 is provided with a dustproof corrugated sleeve 17 which is sleeved on the outer sleeve 12 and the tie rod 16.
In order to realize the swinging motion of the threaded rod 5 in the engaging and disengaging process relative to the driven wheel 1, in the embodiment, the position of the threaded rod 5 connected with the longitudinal transmission shaft 3 through the universal joint is arranged in the shell, the longitudinal transmission shaft 3 passes through the position supported by the shell, and a sealing bearing is arranged between the longitudinal transmission shaft 3 and the shell.
The use method of the multi-section flexible transmission mechanism of the forklift comprises the following steps:
s1, power source driving: the vehicle engine is used as a power source, the rotating power of the engine is output to the longitudinal transmission shaft 3, and then the longitudinal transmission shaft 3 drives the threaded rod 5 to rotate;
s2, transmission state adjustment: the longitudinal transmission shaft 3 adopts a worm and gear driving mode or adopts a ball screw to push the driven wheel 1 to rotate, and in the process, when the elastic coefficients of the springs 8 are different, the meshing tightness between the threaded rod 5 and the driven wheel 1 is also different; when the elastic coefficient of the spring 8 is small and the extrusion force of the spring 8 on the threaded rod 5 is insufficient, the threaded rod 5 and the driven wheel 1 are easy to disengage, so that the transmission overload is interrupted; the limit of different torque limits can be adapted by replacing the springs 8 with different elastic coefficients or adjusting the elastic force of the springs 8, so that the instantaneous overload of a transmission system is avoided;
s3, transverse power transmission: the driven wheel 1 rotates through the transverse transmission shaft 2, so that the transverse pulling mechanism groups 10 on the two sides respectively move to the same side, and the same-direction push-pull adjustment of the wheels is realized;
s4, adaptive rotation of a ball head: a spherical cavity 13 matched with the shape and size of the rotary ball head 15 is formed between the concave cambered surface on the end surface of the inner sleeve 11 and the inner cavity of the outer sleeve 12, in the push-pull process of the transverse pull rod 16, the transverse pull rod 16 connected with the rotary ball head 15 swings relative to the transverse transmission shaft 2 to adapt to the movement of wheels, and the rotary ball head 15 rotates relative to the cavity 13 to realize adaptability adjustment.
Example 2
On the basis that other technical schemes of the embodiment are kept unchanged, the difference is as follows: the protruding part is screwed in a threaded hole reserved on the shell in a threaded connection mode. In this embodiment, the guide pillar stretches out the casing, and the guide pillar passes casing department and sets up the sealing washer to the guide pillar is spacing for the spring provides complete direction, when avoiding guide pillar length to be shorter than spring length, and unexpected deformation takes place for the spring under certain circumstances, and the card leads to the transmission or turns to the malfunction in the position between guide pillar and casing.
The threaded rod 5 is a lead screw, and a ball screw sleeve is matched on the lead screw; the ball screw sleeve is meshed with the driven wheel 1 by utilizing a tooth structure arranged outside the ball screw sleeve, and when the screw rotates, the ball screw sleeve on the screw is driven to move, so that the driven wheel 1 meshed with the screw is pushed to rotate, and the transverse transmission shaft 2 is driven.
The position of the longitudinal transmission shaft 3 penetrating through the shell is internally provided with a universal bearing in a through hole of the shell so as to be suitable for the adjustment of the posture of the shell in the transmission process of the longitudinal transmission shaft 3 penetrating through the shell.
In this patent, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral connections; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in this patent may be understood by those of ordinary skill in the art as appropriate.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the invention, but that various changes and modifications may be made without departing from the spirit and scope of the invention, which shall fall within the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (8)
1. A multi-section flexible transmission mechanism of a forklift comprises a longitudinal transmission system and a transverse transmission system; one end of the longitudinal transmission system is connected with the transverse transmission system in a tooth structure matching mode and is used for driving the transverse transmission system; characterized in that said transversal transmission system comprises:
the driven wheel (1) is fixedly arranged on the transverse transmission shaft (2) and is used for driving the transverse steering system to act through the transverse transmission shaft (2);
one end of the longitudinal transmission shaft (3) is connected with a threaded rod (5) by adopting a universal joint (4), and the other end of the longitudinal transmission shaft (3) is connected with a power source;
the threaded rod (5) is used for driving the driven wheel (1) to rotate;
the inner frame (6) is sleeved at two ends of the threaded rod (5) and used for supporting the threaded rod (5);
the shell (7) is arranged on the periphery of the driven wheel (1) and limits the threaded rod (5) and the inner frame (6) in the shell (7);
the protruding part (9) is formed on a concave structure on the inner wall of the shell (7), and a spring (8) is arranged in the concave structure;
one end of the spring (8) is propped against the inner frame (6), and the other end of the spring is propped against the shell (7) and is used for pressing the inner frame (6) and the threaded rod (5) on the driven wheel (1);
the transverse transmission shaft (2) penetrates through the axis of the driven wheel (1) and penetrates through the shell (7); two ends of the transverse transmission shaft (2) are respectively provided with a transverse pulling mechanism group (10);
the transverse pulling mechanism group (10) comprises an inner sleeve (11) which is sleeved on the end part of the transverse transmission shaft (2) in a threaded matching mode; the periphery of the inner sleeve (11) is provided with an outer sleeve (12) in a threaded fit manner; the length of the inner sleeve (11) is shorter than that of the outer sleeve (12), so that the inner sleeve (11) is positioned on one side of the inner structure of the outer sleeve (12) after being completely screwed into the outer sleeve (12), and a cavity (13) is reserved on the other side of the inner structure of the outer sleeve (12); one end of the inner sleeve (11) is provided with a flange plate (14), the flange plate (14) is provided with a through hole, and the end part of the outer sleeve (12) is provided with a threaded hole corresponding to the through hole, so that a bolt can penetrate through the through hole and enter the threaded hole to mutually fix the inner sleeve (11) and the outer sleeve (12);
an end hole is formed in one end, close to the cavity (13), of the outer sleeve (12); the cavity (13) is of a spherical structure, and a rotating ball head (15) is arranged in the cavity; and a cross pull rod (16) is arranged on the rotating ball head (15), and the cross pull rod (16) penetrates through the end hole and extends outwards.
2. The multi-section flexible transmission mechanism of a forklift truck according to claim 1, characterized in that:
an end face, far away from the flange plate (14), of the inner sleeve (11) is provided with an inwards concave cambered surface which is a part of a structure forming the cavity (13).
3. The multi-section flexible transmission mechanism of a forklift truck according to claim 1, characterized in that:
the periphery of the rotating ball head (15) is provided with a dustproof corrugated sleeve (17) which is sleeved on the outer sleeve (12) and the tie rod (16).
4. The multi-section flexible transmission mechanism of a forklift truck according to claim 1, characterized in that:
the position where the longitudinal transmission shaft (3) is connected with the threaded rod (5) is positioned in the shell (7);
the thread turning directions of the two ends of the transverse transmission shaft (2) are the same.
5. The multi-section flexible transmission mechanism of a forklift truck according to claim 1, characterized in that:
the inner frame (6) is provided with a guide post (18), the spring (8) is sleeved on the guide post (18), and the length of the guide post (18) is shorter than the limit compression length of the spring (8).
6. The multi-section flexible transmission mechanism of a forklift truck according to claim 4, wherein:
the driven wheel (1) is a worm wheel; the threaded rod (5) is a worm; the driven wheel (1) and the threaded rod (5) are connected with each other in a worm and gear connection mode.
7. The multi-section flexible transmission mechanism of a forklift truck according to claim 1, characterized in that:
the threaded rod (5) is a lead screw, and a ball screw sleeve is matched on the threaded rod; the ball screw sleeve is meshed with the driven wheel (1) by means of a tooth structure arranged outside the ball screw sleeve.
8. Use of a multi-segment flexible transmission of a forklift truck according to any one of claims 1-7, comprising the steps of:
s1, power source driving: the vehicle engine is used as a power source, the rotating power of the engine is output to the longitudinal transmission shaft (3), and then the longitudinal transmission shaft (3) drives the threaded rod (5) to rotate;
s2, transmission state adjustment: the longitudinal transmission shaft (3) adopts a worm and gear driving mode or adopts a ball screw to push the driven wheel (1) to rotate, and in the process, when the elastic coefficients of the springs (8) are different, the meshing tightness between the threaded rod (5) and the driven wheel (1) is also different; when the elastic coefficient of the spring (8) is small and the extrusion force of the spring (8) to the threaded rod (5) is insufficient, the threaded rod (5) and the driven wheel (1) are easy to disengage, so that the transmission overload is interrupted; the limit of different torque limits can be adapted by replacing the springs (8) with different elastic coefficients or adjusting the elastic force of the springs (8), so that the instantaneous overload of a transmission system is avoided;
s3, transverse power transmission: the driven wheel (1) rotates through the transverse transmission shaft (2), so that the transverse pulling mechanism groups (10) on the two sides respectively move to the same side, and the same-direction push-pull adjustment of the wheels is realized;
s4, adaptive rotation of a ball head: a spherical cavity (13) matched with the shape and size of the rotary ball head (15) is formed between the concave cambered surface on the end surface of the inner sleeve (11) and the inner cavity of the outer sleeve (12), in the push-pull process of the transverse pull rod (16), the transverse pull rod (16) connected with the rotary ball head (15) swings relative to the transverse transmission shaft (2) to adapt to the movement of wheels, and the rotary ball head (15) rotates relative to the cavity (13) to realize adaptive adjustment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010166055.5A CN111379836B (en) | 2020-03-11 | 2020-03-11 | Multi-section flexible transmission mechanism of forklift and using method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010166055.5A CN111379836B (en) | 2020-03-11 | 2020-03-11 | Multi-section flexible transmission mechanism of forklift and using method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111379836A CN111379836A (en) | 2020-07-07 |
| CN111379836B true CN111379836B (en) | 2021-08-06 |
Family
ID=71218755
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010166055.5A Active CN111379836B (en) | 2020-03-11 | 2020-03-11 | Multi-section flexible transmission mechanism of forklift and using method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111379836B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102765418A (en) * | 2011-05-06 | 2012-11-07 | 豫北(新乡)汽车动力转向器有限公司 | Automatic clearance adjusting mechanism for worm and gear of automobile electric power steering gear |
| CN104943739A (en) * | 2014-03-24 | 2015-09-30 | 株式会社昭和 | Power steering apparatus |
| CN105008208A (en) * | 2013-03-06 | 2015-10-28 | 蒂森克虏伯普利斯坦股份公司 | Angularly movable bearing arrangement for pinions in reduction gears of electromechanical steering systems |
| CN208515668U (en) * | 2018-06-07 | 2019-02-19 | 富奥汽车零部件股份有限公司 | Rack of steering elongate support structure |
| CN110789609A (en) * | 2019-11-20 | 2020-02-14 | 国唐汽车有限公司 | Power-assisted steering mechanism of vehicle steering gear |
-
2020
- 2020-03-11 CN CN202010166055.5A patent/CN111379836B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102765418A (en) * | 2011-05-06 | 2012-11-07 | 豫北(新乡)汽车动力转向器有限公司 | Automatic clearance adjusting mechanism for worm and gear of automobile electric power steering gear |
| CN105008208A (en) * | 2013-03-06 | 2015-10-28 | 蒂森克虏伯普利斯坦股份公司 | Angularly movable bearing arrangement for pinions in reduction gears of electromechanical steering systems |
| CN104943739A (en) * | 2014-03-24 | 2015-09-30 | 株式会社昭和 | Power steering apparatus |
| CN208515668U (en) * | 2018-06-07 | 2019-02-19 | 富奥汽车零部件股份有限公司 | Rack of steering elongate support structure |
| CN110789609A (en) * | 2019-11-20 | 2020-02-14 | 国唐汽车有限公司 | Power-assisted steering mechanism of vehicle steering gear |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111379836A (en) | 2020-07-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2344372B1 (en) | Rotary-to-linear mechanism having an isolator | |
| CN110171472B (en) | Dual-mode rear wheel active steering device | |
| CN101830247B (en) | Steering mechanism of movable platform | |
| CN106995002A (en) | The decelerator of electric power-assisted steering apparatus | |
| CN111379836B (en) | Multi-section flexible transmission mechanism of forklift and using method thereof | |
| CN113602382A (en) | Large-scale heavy load AGV vehicle | |
| CN203318495U (en) | Hydraulic power assisted integral automobile power steering gear | |
| CN214296108U (en) | Steering switching system suitable for formula car of unmanned driving | |
| WO2020114470A1 (en) | Automobile steering transmission mechanism, automobile steering system, and long front suspension automobile | |
| CN201670261U (en) | Moving platform steering mechanism | |
| CN210728662U (en) | Bionic grapple robot | |
| CN108189021B (en) | Waist driving mechanism of single-drive dodging robot | |
| US20230145223A1 (en) | Dual-mode active rear-wheel steering device based on differential principle | |
| CN215666669U (en) | Arrangement structure of large-tonnage crane trolley running mechanism | |
| CN114802421B (en) | Coaxial double-motor drive-by-wire steering system and intelligent automobile without steering wheel | |
| CN210139894U (en) | Automatic steering refitting kit for electric golf cart | |
| CN220281043U (en) | Driving front axle with wheel side speed reducing disc brake | |
| CN113463453A (en) | Intelligent bolt stress diffusion vehicle | |
| CN218702690U (en) | AGV self-adaptation ground rudder wheel drive unit | |
| CN222005194U (en) | Transmission mechanism, steering device and vehicle | |
| CN201737032U (en) | Steering system of sightseeing bus with storage battery | |
| CN212861761U (en) | Steering gear of tricycle | |
| CN215663634U (en) | Formula car steering system | |
| CN219487551U (en) | Steering device of unmanned motorcycle | |
| CN110433504B (en) | Bionic combat robot |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |