CN220151741U - Steering knuckle arm structure - Google Patents
Steering knuckle arm structure Download PDFInfo
- Publication number
- CN220151741U CN220151741U CN202321681164.6U CN202321681164U CN220151741U CN 220151741 U CN220151741 U CN 220151741U CN 202321681164 U CN202321681164 U CN 202321681164U CN 220151741 U CN220151741 U CN 220151741U
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- knuckle
- piston rod
- bearing
- transverse plate
- double
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- 230000008878 coupling Effects 0.000 claims description 2
- 238000010168 coupling process Methods 0.000 claims description 2
- 238000005859 coupling reaction Methods 0.000 claims description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
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- Steering-Linkage Mechanisms And Four-Wheel Steering (AREA)
Abstract
The utility model discloses a steering knuckle arm structure which comprises a steering axle body, a hub, a steering knuckle, a double-piston rod oil cylinder, a connecting rod assembly, a knuckle bearing and a pin shaft, wherein the upper end face and the lower end face of an outer ring of the knuckle bearing are respectively provided with integrally vulcanized bushings, and the bushings at the upper end and the lower end are respectively correspondingly positioned in gaps between the knuckle bearing and an upper transverse plate and a lower transverse plate of the connecting rod assembly and are used for limiting the knuckle bearing. According to the utility model, the joint bearing and the bushing are processed into an integrated structure to form an integrated part, and then the integrated part is pressed into the free end of the piston rod of the double-piston rod oil cylinder and the pin shaft hole at the end part of the extension arm, so that the problem of quality caused by distortion and falling easily occurs when the bushing is pressed alone is avoided, the joint bearing and the bushing are not required to be pressed separately, and the assembly efficiency is improved; moreover, the whole part is large in target, so that the manipulator can conveniently recognize and grasp, and intelligent assembly is realized.
Description
Technical Field
The utility model relates to the technical field of forklift steering axles, in particular to a steering knuckle arm structure.
Background
The knuckle arm is a key structure for realizing steering of the forklift steering knuckle, plays a role in connecting a piston rod of the double-piston rod oil cylinder with the steering knuckle, and influences the steering performance and the service life of the forklift steering axle due to the reliability of the knuckle arm structure. At present, the structure of a steering knuckle arm of a forklift steering axle mainly comprises a connecting rod assembly, a knuckle bearing, a bushing and a bolt, wherein the connecting rod assembly comprises an upper transverse plate, a lower transverse plate and a connecting block fixedly connected between the middle parts of the upper transverse plate and the lower transverse plate, the knuckle bearing is embedded in the free end of a piston rod of a double-piston rod oil cylinder and a vertical pin hole at the end part of an extension arm, and a pin shaft sequentially penetrates through the upper transverse plate, the knuckle bearing and the lower transverse plate from top to bottom.
Under normal conditions, bushings are required to be pressed at two ends of the knuckle bearing, so that the knuckle bearing can be centered, the knuckle bearing is prevented from being blocked due to interference, the knuckle bearing cannot move up and down, and the pin shaft is prevented from being worn.
In the press-fitting process of the bushing, the bushing is often distorted and deformed, the bushing is easy to fall off after deformation, so that the quality problem of the knuckle arm is caused, and the knuckle bearing and the bushing are both required to be press-fitted, so that the assembly efficiency is low; in addition, because the bush is less, cause the manipulator unable discernment to snatch to can not realize intelligent assembly.
Disclosure of Invention
The utility model aims to overcome the defects and the shortcomings in the prior art, and provides a steering knuckle arm structure which can not cause the quality problems caused by easy distortion and falling off when independently press-fitting a bushing, and can not separately press-fit a knuckle bearing and the bushing so as to improve the assembly efficiency; moreover, the whole part is large in target, so that the manipulator can conveniently recognize and grasp, and intelligent assembly can be realized.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
the utility model provides a knuckle arm structure, including fork truck's steering axle body, wheel hub, knuckle and double piston rod hydro-cylinder, have the extension arm of body coupling on the outer wall of knuckle, rotate between the free end of the piston rod of double piston rod hydro-cylinder and the tip of extension arm and be connected with link assembly, link assembly including last diaphragm, lower diaphragm and fixed connection in last diaphragm and the connecting block between the middle part of diaphragm down, the free end of the piston rod of double piston rod hydro-cylinder and the tip of extension arm all are equipped with the round pin axle hole that vertically runs through, round pin axle hole middling pressure have joint bearing, have round pin axle top-down to run through in proper order go up diaphragm, joint bearing and lower diaphragm, its characterized in that: the upper end face and the lower end face of the outer ring of the knuckle bearing are respectively provided with an integrally vulcanized bushing, and the bushings at the upper end and the lower end are respectively and correspondingly positioned in gaps between the knuckle bearing and the upper transverse plate and between the knuckle bearing and the lower transverse plate and are used for limiting the knuckle bearing.
Further, the free end of the piston rod of the double-piston-rod oil cylinder and the end part of the extension arm are respectively provided with a screw hole, the screw holes penetrate through the inner wall and the outer wall of the pin shaft hole along the radial direction of the pin shaft hole, a locking bolt is screwed in the screw holes, the locking bolt is screwed, and the screwed-in end of the locking bolt is abutted to the outer wall of the outer ring of the joint bearing.
Further, the upper transverse plate and the lower transverse plate are arc plates which are outwards bent.
Further, the upper surface of the upper transverse plate is fixedly provided with a positioning plate, and the positioning plate extends along the length direction of the upper transverse plate.
Further, a bayonet is arranged at one side of the upper end of the pin shaft, which faces the positioning plate, and the end part of the positioning plate is clamped in the bayonet.
Furthermore, a gap is formed between the free end of the piston rod of the connecting block and the double-piston rod oil cylinder and the end part of the extension arm.
Compared with the prior art, the utility model has the beneficial effects that:
according to the utility model, the joint bearing and the bushing are processed into an integrated structure to form an integrated part, and then the integrated part is pressed into the free end of the piston rod of the double-piston rod oil cylinder and the pin shaft hole at the end part of the extension arm, so that the problem of quality caused by distortion and falling easily occurs when the bushing is pressed alone is avoided, the joint bearing and the bushing are not required to be pressed separately, and the assembly efficiency is improved; moreover, the whole part is large in target, so that the manipulator can conveniently recognize and grasp, and intelligent assembly is realized.
Drawings
Fig. 1 is a schematic structural view of the present utility model.
Fig. 2 is a schematic view of a partial structure of the present utility model.
Fig. 3 is a partial structural cross-sectional view of the present utility model.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1-3, a steering knuckle arm structure comprises a steering axle body 1, a hub 2, a steering knuckle 3 and a double-piston-rod oil cylinder 4 of a forklift truck, an integrally connected extension arm 5 is arranged on the outer wall of the steering knuckle 3, a connecting rod assembly 6 is rotatably connected between the free end of a piston rod of the double-piston-rod oil cylinder 4 and the end part of the extension arm 5, the connecting rod assembly 6 comprises an upper transverse plate 61, a lower transverse plate 62 and a connecting block 63 fixedly connected between the middle parts of the upper transverse plate 61 and the lower transverse plate 62, pin shaft holes vertically penetrating through are respectively arranged at the free ends of the piston rods of the double-piston-rod oil cylinder 4 and the end parts of the extension arm 5, a joint bearing 7 is pressed in the pin shaft holes, a pin shaft 8 sequentially penetrates through the upper transverse plate 61, the joint bearing 7 and the lower transverse plate 62 from top to bottom, upper end surfaces and lower end surfaces of an outer ring of the joint bearing 7 are respectively provided with integrally vulcanized bushings 9, and the bushings 9 at the upper end and the lower end are respectively correspondingly positioned in gaps of the joint bearing 7 and the upper transverse plate 61 and the lower transverse plate 62 for limiting the joint bearing 7.
In the utility model, the free end of the piston rod of the double piston rod oil cylinder 4 and the end part of the extension arm are respectively provided with a screw hole, the screw holes penetrate through the inner wall and the outer wall of the pin shaft hole along the radial direction of the pin shaft hole, and a locking bolt 10 is screwed in the screw holes.
Thus, by screwing the lock bolt 10, the screwed end of the lock bolt 10 is abutted against the outer wall of the outer ring of the knuckle bearing 7, and the outer ring of the knuckle bearing 7 is locked in the pin hole.
In the present utility model, the upper cross plate 61 and the lower cross plate 62 are both arc plates which are curved outward.
Thus, by designing the upper cross plate 61 and the lower cross plate 62 as arc plates that are curved outward, interference with the end portion of the steering bridge 1 does not occur when the steering bridge is deflected by the drive of the double piston rod cylinder 4.
In the present utility model, the upper surface of the upper cross plate 61 is fixedly provided with the positioning plate 11, and the positioning plate 11 extends in the longitudinal direction of the upper cross plate 61.
Correspondingly, the upper end of the pin shaft 8 is provided with a bayonet at one side facing the positioning plate, and the end part of the positioning plate 11 is clamped in the bayonet.
Therefore, the positioning plate 11 and the bayonet are arranged, and the end part of the positioning plate 11 is clamped in the bayonet, so that the locking pin shaft 8 is realized, and the circumferential movement of the locking pin shaft is prevented.
In the utility model, a gap 12 is arranged between the connecting block 63 and the free end of the piston rod of the double piston rod oil cylinder 4 and the end of the extension arm 5, so that a sufficient abdication space is provided for changing the relative positions of the free end of the piston rod of the double piston rod oil cylinder 4, the extension arm 5 and the connecting rod assembly 6.
The utility model is further described below with reference to the accompanying drawings:
when the steering device works, the piston rods of the double-piston-rod oil cylinder 4 are controlled to stretch and retract, and the steering knuckle 3 is driven to deflect leftwards or rightwards through the connecting rod group 6 and the steering knuckle arm of the utility model, so that steering is realized.
Because the joint bearing 7 and the bush 9 are processed into an integral structure to form an integral part, and then the integral part is pressed into the free end of the piston rod of the double-piston rod oil cylinder 4 and the pin shaft hole of the end part 5 of the extension arm, on one hand, the problem that the bush 9 is easy to distort, deform and fall off to cause quality problems when being pressed independently is avoided; on the other hand, the joint bearing 7 and the bushing 9 do not need to be pressed separately, so that the assembly efficiency can be improved; on the other hand, the whole part has a large target, is convenient for the manipulator to recognize and grasp, and can realize intelligent assembly.
Although the present disclosure describes embodiments, not every embodiment is described in terms of a single embodiment, and such description is for clarity only, and one skilled in the art will recognize that the embodiments described in the disclosure as a whole may be combined appropriately to form other embodiments that will be apparent to those skilled in the art.
Therefore, the above description is not intended to limit the scope of the utility model; all changes which come within the meaning and range of equivalency of the claims are to be embraced within their scope.
Claims (6)
1. The utility model provides a knuckle arm structure, including fork truck's steering axle body, wheel hub, knuckle and double piston rod hydro-cylinder, have the extension arm of body coupling on the outer wall of knuckle, rotate between the free end of the piston rod of double piston rod hydro-cylinder and the tip of extension arm and be connected with link assembly, link assembly including last diaphragm, lower diaphragm and fixed connection in last diaphragm and the connecting block between the middle part of diaphragm down, the free end of the piston rod of double piston rod hydro-cylinder and the tip of extension arm all are equipped with the round pin axle hole that vertically runs through, round pin axle hole middling pressure have joint bearing, have round pin axle top-down to run through in proper order go up diaphragm, joint bearing and lower diaphragm, its characterized in that: the upper end face and the lower end face of the outer ring of the knuckle bearing are respectively provided with an integrally vulcanized bushing, and the bushings at the upper end and the lower end are respectively and correspondingly positioned in gaps between the knuckle bearing and the upper transverse plate and between the knuckle bearing and the lower transverse plate and are used for limiting the knuckle bearing.
2. A knuckle arm structure according to claim 1, characterized in that: the free end of the piston rod of the double-piston-rod oil cylinder and the end part of the extension arm are respectively provided with a screw hole, the screw holes penetrate through the inner wall and the outer wall of the pin shaft hole along the radial direction of the pin shaft hole, a locking bolt is screwed in the screw holes, the locking bolt is screwed, and the screwing-in end of the locking bolt is abutted to the outer wall of the outer ring of the joint bearing.
3. A knuckle arm structure according to claim 1, characterized in that: the upper transverse plate and the lower transverse plate are arc plates which are outwards bent.
4. A knuckle arm structure according to claim 1 or 3, characterized in that: the upper surface of the upper transverse plate is fixedly provided with a positioning plate, and the positioning plate extends along the length direction of the upper transverse plate.
5. A knuckle arm structure according to claim 4, characterized in that: the upper end of the pin shaft is provided with a bayonet at one side facing the positioning plate, and the end part of the positioning plate is clamped in the bayonet.
6. A knuckle arm structure according to claim 1, characterized in that: and gaps are formed between the free ends of the piston rods of the connecting block and the double-piston-rod oil cylinder and the end parts of the extension arms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321681164.6U CN220151741U (en) | 2023-06-29 | 2023-06-29 | Steering knuckle arm structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321681164.6U CN220151741U (en) | 2023-06-29 | 2023-06-29 | Steering knuckle arm structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220151741U true CN220151741U (en) | 2023-12-08 |
Family
ID=89008141
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321681164.6U Active CN220151741U (en) | 2023-06-29 | 2023-06-29 | Steering knuckle arm structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220151741U (en) |
-
2023
- 2023-06-29 CN CN202321681164.6U patent/CN220151741U/en active Active
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