CN216426642U - Prevent fork track structure that portal rocked - Google Patents
Prevent fork track structure that portal rocked Download PDFInfo
- Publication number
- CN216426642U CN216426642U CN202122608698.3U CN202122608698U CN216426642U CN 216426642 U CN216426642 U CN 216426642U CN 202122608698 U CN202122608698 U CN 202122608698U CN 216426642 U CN216426642 U CN 216426642U
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- track
- roller
- fork
- front side
- portal
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Abstract
The utility model discloses a prevent fork track structure that portal rocked belongs to engineering machine tool technical field. The fork frame comprises a fork frame and a portal section bar; a row of rollers are symmetrically arranged on two sides of the fork frame; tracks are arranged on two sides of the portal frame section bar, and the rollers on two sides of the fork frame are correspondingly and slidably arranged in the tracks on two sides of the portal frame section bar; each row of rollers at least comprises an upper roller, a middle roller and a lower roller, and the upper roller, the middle roller and the lower roller are sequentially arranged from top to bottom; the upper end of the front side surface of the track is provided with a transition section extending forwards, and the transition section is smoothly connected with the front side surface of the track; when the lower roller contacts with the rear side face of the track and the upper roller contacts with one position in the transition section, the middle roller contacts with the front side face of the track. The utility model discloses well fork frame rises steadily, when the fork frame rises to the top, well gyro wheel and last gyro wheel smooth switch that can be smooth prevent that the fork frame from rocking suddenly, eliminate the potential safety hazard, reduce the impact that whole sliding structure received.
Description
Technical Field
The utility model relates to a fork of fork truck specifically is a fork track structure who prevents that portal from rocking belongs to engineering machine tool technical field.
Background
A forklift is a common engineering machine. Fork truck fork frames typically employ three single-sided rollers in sliding connection with the mast section bar, and when the fork frame moves to the uppermost end, the uppermost roller may exceed the track of the mast section bar. Because there is the clearance between middle gyro wheel and the portal section bar track, so when the gyro wheel of the top deviates from out the portal section bar track, under the action of gravity, the fork frame has the trend of leaning forward, and middle gyro wheel can contact suddenly with the portal section bar track, and this in-process can produce vibrations, leads to fork frame and portal section bar whole to rock, has the potential safety hazard, has also aggravated the wearing and tearing of gyro wheel, leads to fork life to reduce.
Disclosure of Invention
Obtain when having solved fork frame and move the top and rock the problem, the utility model provides a prevent fork track structure that portal rocked.
The utility model discloses a following technical scheme realizes: a fork track structure for preventing a portal from shaking comprises a fork frame and a portal section bar; a row of rollers are symmetrically arranged on two sides of the fork frame; tracks are arranged on two sides of the portal frame section bar, and rollers on two sides of the fork frame are correspondingly and slidably arranged in the tracks on two sides of the portal frame section bar; each row of rollers at least comprises an upper roller, a middle roller and a lower roller, and the upper roller, the middle roller and the lower roller are sequentially arranged from top to bottom; the upper end of the front side surface of the track is provided with a transition section extending forwards, and the transition section is smoothly connected with the front side surface of the track; when the lower roller is contacted with the rear side surface of the track and the upper roller is contacted with one position in the transition section, the middle roller is contacted with the front side surface of the track.
It further comprises the following steps: the transition section is an inclined plane extending towards the front side face of the track.
The transition section is a curved surface extending towards the front side surface of the track.
When the lower roller is in contact with the rear side face of the track and the upper roller is in contact with the front side face of the track, a gap is formed between the middle roller and the front side face of the track, and the middle roller is in contact with the rear side face of the track.
Compared with the prior art, the utility model discloses beneficial effect is: the fork frame rises stably, when the fork frame rises to the top end, the middle idler wheel and the upper idler wheel can be smoothly switched, the fork frame is prevented from suddenly shaking, and potential safety hazards are eliminated; smooth transition's sliding construction also can reduce the impact that whole sliding construction received, improves the life of gyro wheel and whole fork frame, improves production efficiency, reduce cost.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is an enlarged view of a portion of FIG. 1 at the location of the transition section
In the figure: the fork frame comprises a fork frame body 1, an upper roller body 2, a middle roller body 3, a portal frame section bar 4, a lower roller body 5, a track 6 and a transition section 7.
Detailed Description
The present invention will be further described with reference to the following specific embodiments.
Referring to fig. 1 and 2, the fork track structure for preventing the portal from shaking is provided with tracks 6 on two sides of a portal section bar 4. The fork carriage 1 is located in the middle of the mast section 4 with the two sides of the fork carriage 1 opposite the two rails 6. The fork carriage is characterized in that a row of rollers are symmetrically arranged on two side edges of the fork carriage 1, each row of rollers comprises an upper roller 2, a middle roller 3 and a lower roller 5 which are sequentially arranged from top to bottom, and the upper roller 2, the middle roller 3 and the lower roller 5 are arranged in a track 6 on the corresponding side in a rolling manner.
The upper end of the front side of the rail 6 has a transition section 7 extending forward, the transition section 7 being smoothly connected to the front side of the rail 6. The transition section 7 may be a slope extending in the direction of the front side of the rail 6 or a curved surface extending in the direction of the front side of the rail 6.
When the lower roller 5 is contacted with the rear side surface of the track 6 and the upper roller 2 is contacted with the front side surface of the track 6, a gap is formed between the middle roller 3 and the front side surface of the track 6, and the middle roller 3 is contacted with the rear side surface of the track 6;
when the lower roller 5 is in contact with the rear side of the rail 6 and the upper roller 2 moves to a position in the transition 7, the middle roller 3 is in contact with the front side of the rail 6.
The motion process is as follows:
when the upper roller 2 rolls upwards in the track 6 of the portal section bar 4, the upper roller 2 is contacted with the front side surface of the track 6, the middle roller 3 and the lower roller 5 have a gap with the front side surface of the track 6 of the portal section bar 4, and the middle roller 3 and the lower roller 5 are contacted with the rear side surface of the track 6;
when the upper roller 2 moves to the top of the track 6, the upper roller 2 smoothly enters the transition section 7, and the upper roller 2 starts to have a tendency of moving forwards slowly;
when the upper roller 2 moves forwards, the fork frame 1 slightly inclines forwards, and the middle roller 3 also starts to move forwards; when the upper roller 2 does not slide out of the transition section 7, the middle roller 3 gradually approaches the front side surface of the track 6 until the middle roller contacts the front side surface of the track 6; by this means, the smooth transition of the middle roller 3 from back to front is achieved, avoiding sudden shaking of the fork carriage.
The above description is only a preferred embodiment of the present invention, and it should be noted that: for those skilled in the art, without departing from the principle of the present invention, several improvements and modifications can be made, and these improvements and modifications should also be considered as the protection scope of the present invention.
Claims (4)
1. A fork track structure for preventing a mast from shaking comprises a fork frame (1) and a mast section bar (4); a row of rollers are symmetrically arranged on two sides of the fork frame (1); tracks (6) are arranged on two sides of the portal section bar (4), and rollers on two sides of the fork carrier (1) are correspondingly and slidably arranged in the tracks (6) on two sides of the portal section bar (4); the method is characterized in that: each row of rollers at least comprises an upper roller (2), a middle roller (3) and a lower roller (5), and the upper roller (2), the middle roller (3) and the lower roller (5) are sequentially arranged from top to bottom; the upper end of the front side surface of the track (6) is provided with a transition section (7) extending forwards, and the transition section (7) is smoothly connected with the front side surface of the track (6); when the lower roller (5) is in contact with the rear side face of the track (6) and the upper roller (2) is in contact with one position in the transition section (7), the middle roller (3) is in contact with the front side face of the track (6).
2. The fork track structure for preventing mast sway of claim 1, wherein: the transition section (7) is an inclined plane extending towards the front side face direction of the track (6).
3. The fork track structure for preventing mast sway of claim 1, wherein: the transition section (7) is a curved surface extending towards the front side surface of the track (6).
4. The fork track structure for preventing mast sway of claim 1, wherein: when the lower roller (5) is in contact with the rear side face of the track (6) and the upper roller (2) is in contact with the front side face of the track (6), a gap is formed between the middle roller (3) and the front side face of the track (6) and the middle roller (3) is in contact with the rear side face of the track (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122608698.3U CN216426642U (en) | 2021-10-28 | 2021-10-28 | Prevent fork track structure that portal rocked |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122608698.3U CN216426642U (en) | 2021-10-28 | 2021-10-28 | Prevent fork track structure that portal rocked |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216426642U true CN216426642U (en) | 2022-05-03 |
Family
ID=81332240
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122608698.3U Active CN216426642U (en) | 2021-10-28 | 2021-10-28 | Prevent fork track structure that portal rocked |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216426642U (en) |
-
2021
- 2021-10-28 CN CN202122608698.3U patent/CN216426642U/en active Active
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