CN220317299U - Front frame and fork loader - Google Patents
Front frame and fork loader Download PDFInfo
- Publication number
- CN220317299U CN220317299U CN202321976884.5U CN202321976884U CN220317299U CN 220317299 U CN220317299 U CN 220317299U CN 202321976884 U CN202321976884 U CN 202321976884U CN 220317299 U CN220317299 U CN 220317299U
- Authority
- CN
- China
- Prior art keywords
- pin
- front frame
- shaft sleeve
- hole
- limiting pin
- 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
- 210000004907 gland Anatomy 0.000 claims description 14
- 239000003921 oil Substances 0.000 description 11
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 125000006850 spacer group Chemical group 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 239000004575 stone Substances 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- RKTYLMNFRDHKIL-UHFFFAOYSA-N copper;5,10,15,20-tetraphenylporphyrin-22,24-diide Chemical compound [Cu+2].C1=CC(C(=C2C=CC([N-]2)=C(C=2C=CC=CC=2)C=2C=CC(N=2)=C(C=2C=CC=CC=2)C2=CC=C3[N-]2)C=2C=CC=CC=2)=NC1=C3C1=CC=CC=C1 RKTYLMNFRDHKIL-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
Landscapes
- Forklifts And Lifting Vehicles (AREA)
Abstract
The utility model relates to a forklift, which aims to solve the problem that a shaft sleeve limiting pin in a movable arm oil cylinder hinging seat of an existing front frame is difficult to be matched with a pin shaft hole. In the utility model, the shaft sleeve limiting pin is arranged on the pressure cover in a threaded fit manner, and the length of the shaft sleeve limiting pin extending into the pin shaft hole is adjustable, so that the shaft sleeve limiting pin is matched with the position of the pin shaft hole.
Description
Technical Field
The present utility model relates to a forklift, and more particularly to a front frame and a forklift.
Background
Existing fork loaders typically use forks to replace buckets on a loader basis to effect the handling of large items such as stone. When the forklift is forklift for carrying stone, the required unloading height is low, and the rotating angle of the movable arm is small when the movable arm lifts. Based on the operation characteristics of the forklift, the movable arm cylinder of the forklift is generally arranged in a middle mode, namely, the hinge point of the movable arm cylinder and the front frame is arranged at a position, close to a cylinder cover (a position, where a piston rod extends out), of a cylinder barrel of the movable arm cylinder, a pin shaft used for being connected with the front frame is directly fixed with the cylinder barrel of the movable arm cylinder, and therefore a hinge seat used for being connected with the movable arm cylinder on the front frame needs to be designed into an assembly type, so that the pin shaft on the movable arm cylinder can be installed in a hinge hole on the hinge seat.
The movable arm oil cylinder hinging seat on the existing forklift comprises a base welded on a wing plate of a front frame and a gland fixed on the base through bolts, wherein a semicircular groove is respectively formed in the matching surface of the gland and the base, and the semicircular grooves form a pin shaft hole for accommodating a shaft sleeve. The shaft sleeve is sleeved on the pin shaft. In order to prevent the shaft sleeve from rotating in the pin shaft hole, a limiting pin mounting hole communicated with the pin shaft hole is formed in the gland, a shaft sleeve limiting pin is mounted in the limiting pin mounting hole, the lower end of the shaft sleeve limiting pin is inserted into a limiting hole in the shaft sleeve, a fixed lug plate is arranged at the upper end of the shaft sleeve limiting pin, and the lug plate is fixed on the gland through a bolt.
The existing fork loader is processed by welding the fork on the wing plate of the front frame, and then processing the pin shaft hole after installing the gland. When the pin shaft hole is machined, a datum plane on a front frame is used as a reference, the welding position of the base is in error during welding, so that the position of the pin shaft hole relative to the base is deviated from the design position, the length of the shaft sleeve limiting pin is determined according to the design position of the pin shaft hole on the base, the problem that the length of the shaft sleeve limiting pin is too long or too short relative to the pin shaft hole is caused, if the shaft sleeve limiting pin is too long, the lower end of the shaft sleeve limiting pin is inserted into the shaft hole of the shaft sleeve and is abutted with the pin shaft, and abnormal sound and damage to the pin shaft are caused when the pin shaft rotates; if the shaft sleeve limiting pin is too short, the lower end of the shaft sleeve limiting pin can not be inserted into the limiting hole of the shaft sleeve, and the anti-rotation limiting failure of the shaft sleeve is caused.
Disclosure of Invention
The utility model aims to solve the technical problem that a shaft sleeve limiting pin in a hinge seat of a movable arm oil cylinder of an existing front frame is difficult to be matched with a pin shaft hole, and provides a front frame and a forklift.
The technical scheme for achieving the purpose of the utility model is as follows: the front frame comprises a movable arm oil cylinder hinging seat, wherein the movable arm oil cylinder hinging seat comprises a base welded on a main body structure of the front frame and a gland fixed on the base through bolts, a shaft sleeve is arranged in a pin shaft hole of the movable arm oil cylinder hinging seat, a limiting pin mounting hole communicated with the pin shaft hole is formed in the gland, a shaft sleeve limiting pin is fixedly arranged in the limiting pin mounting hole through threaded fit, and the lower end of the shaft sleeve limiting pin is inserted into the limiting hole of the shaft sleeve.
In the utility model, the shaft sleeve limiting pin is arranged on the pressure cover in a threaded fit manner, and the length of the shaft sleeve limiting pin extending into the pin shaft hole is adjustable, so that the shaft sleeve limiting pin is matched with the position of the pin shaft hole.
In the front frame, the shaft sleeve limiting pin is provided with the locking nut which is in butt joint with the gland in a threaded fit manner.
In the front frame, the lower end of the shaft sleeve limiting pin is of a stepped structure, a small-diameter section of the shaft sleeve limiting pin is matched with the limiting hole of the shaft sleeve, and a large-diameter section of the shaft sleeve limiting pin is provided with external threads matched with the limiting pin mounting hole.
In the front frame, the cross section of the top end of the shaft sleeve limiting pin is regular hexagon or regular quadrilateral.
In the front frame, an axial through hole is formed in the shaft sleeve limiting pin, and an oil cup is arranged at the top end of the axial through hole.
The technical scheme for achieving the purpose of the utility model is as follows: the forklift is provided with the front frame, and a pin shaft on a cylinder barrel of the movable arm cylinder is connected with a hinge seat of the movable arm cylinder.
In the forklift, each side of the front frame main body structure is provided with two parallel wing plates which are arranged in pairs, the movable arm oil cylinder hinging seats are arranged in pairs, and the two movable arm oil cylinder hinging seats which are arranged in pairs are correspondingly fixed on the two parallel wing plates which are arranged in pairs.
In the fork loader, the movable arm cylinder hinging seats arranged on the outer side in pairs are arranged on the upper edge of the wing plate on the outer side, the side surface of the wing plate on the inner side, facing the wing plate on the outer side, is welded with a support, and the movable arm cylinder hinging seats on the inner side are arranged on the support.
In the forklift, the support is formed by channel steel with a notch welded with the wing plate on the inner side. The channel steel and the wing plates on the inner side form a box structure, so that the strength of the box structure is enhanced.
Compared with the prior art, in the utility model, the shaft sleeve limiting pin is arranged on the pressure cover in a threaded fit manner, and the length of the shaft sleeve limiting pin extending into the pin shaft hole is adjustable, so that the shaft sleeve limiting pin is matched with the position of the pin shaft hole.
Drawings
Fig. 1 is a schematic structural view of a front frame of the present utility model.
Fig. 2 is an exploded view of the articulated seat of the boom cylinder on the front frame of the present utility model.
Fig. 3 is a cross-sectional view of the articulated seat of the boom cylinder on the front frame of the present utility model.
Fig. 4 is a schematic view of the assembly of the front frame and boom connection of the present utility model.
Part names and serial numbers in the figure:
front frame 10, inside flange 11, outside flange 12, support 13, base 20, gland 21, axle sleeve 22, bolt 23, axle sleeve spacer pin 24, lock nut 25, oil cup 27, spacer pin mounting hole 28, spacing hole 29, spanner connecting portion 241, boom cylinder 30, boom 40.
Detailed Description
The following describes specific embodiments with reference to the drawings.
Fig. 1 to 3 show a front frame structure of a forklift in one embodiment of the present utility model.
As shown in fig. 1, each of the left and right sides of the main body structure of the front frame 10 has two parallel wing plates arranged in pairs, and a pair of boom cylinder hinge seats for hinge-connecting with one boom cylinder are arranged on the two wing plates arranged in pairs. The outside movable arm cylinder hinging seats among the paired movable arm cylinder hinging seats are arranged on the upper edge of the outer wing plate 12, the side surface of the inner wing plate 11 facing the outer wing plate 12 is welded with a support 13, and the inside movable arm cylinder hinging seats are arranged on the support 13. The support 13 is formed by a channel steel welded with the inner side wing plate 11. The channel steel and the wing plates on the inner side form a box structure, so that the strength of the box structure is enhanced.
As shown in fig. 2 and 3, the movable arm cylinder hinge seat comprises a base 20 welded on the main body structure of the front frame, and a gland 21 fixed on the base 20 through a bolt 23, a shaft sleeve 22 is installed in a pin shaft hole of the movable arm cylinder hinge seat, a limiting pin installation hole 28 communicated with the pin shaft hole is arranged on the gland 21, a shaft sleeve limiting pin 24 is fixedly installed in the limiting pin installation hole 28 through threaded fit, and the lower end of the shaft sleeve limiting pin 24 is inserted into a limiting hole 29 of the shaft sleeve 22.
A lock nut 25 which is abutted against the gland 21 is arranged on the shaft sleeve limiting pin 24 in a threaded fit manner. By providing the lock nut 25, the boss stopper pin 24 is prevented from being turned straight to fail.
The lower end of the shaft sleeve limiting pin 24 is of a stepped structure, a small-diameter section of the shaft sleeve limiting pin is matched with a limiting hole 29 of the shaft sleeve 22, and a large-diameter section of the shaft sleeve limiting pin is provided with external threads matched with a limiting pin mounting hole 28. The top end of the sleeve stopper pin 24 is a wrench connecting portion 241 having a regular hexagonal or regular tetragonal cross section. The wrench connecting portion 241 may be connected to a wrench for rotating the boss spacer pin to adjust its installation position.
The shaft sleeve limiting pin 24 is provided with an axial through hole, and an oil cup 27 is arranged at the top end of the axial through hole. Lubricating oil can be injected into the pin shaft hole of the shaft sleeve through the oil cup 27 and the axial through hole in the shaft sleeve limiting pin 24, so that the lubricating effect on the pin shaft is achieved.
The present embodiment also provides a forklift truck, which has the front frame 10, as shown in fig. 4, a pin on a cylinder of the middle-set boom cylinder 30 is connected with a boom cylinder hinging seat, and a head of the boom cylinder 30 is hinged with the boom 40.
Claims (9)
1. The front frame comprises a movable arm oil cylinder hinging seat, wherein the movable arm oil cylinder hinging seat comprises a base welded on a main body structure of the front frame and a gland fixed on the base through bolts, and a shaft sleeve is arranged in a pin shaft hole of the movable arm oil cylinder hinging seat.
2. The front frame of claim 1, wherein a lock nut acting against the gland is mounted in threaded engagement on the boss limit pin.
3. The front frame according to claim 1, wherein the lower end of the shaft sleeve limiting pin is of a stepped structure, a small diameter section of the shaft sleeve limiting pin is matched with the limiting hole of the shaft sleeve, and a large diameter section of the shaft sleeve limiting pin is provided with an external thread matched with the limiting pin mounting hole.
4. The front frame of claim 1, wherein the cross section of the top end of the boss restraint pin is regular hexagon or regular quadrilateral.
5. The front frame of claim 1, wherein the axle sleeve limit pin is provided with an axial through hole, and an oil cup is mounted at the top end of the axial through hole.
6. A forklift, characterized in that it has the front frame of any one of claims 1 to 5, and the pin on the cylinder of the boom cylinder is connected to the hinge seat of the boom cylinder.
7. The forklift of claim 6, wherein each side of said front frame body structure has two parallel wings arranged in pairs, said boom cylinder hinge seats are arranged in pairs, and said two boom cylinder hinge seats arranged in pairs are correspondingly fixed to said two parallel wings arranged in pairs.
8. The forklift of claim 7, wherein an outer one of said boom cylinder hinge seats arranged in pairs is arranged at an upper edge of an outer wing plate, a support is welded on a side of an inner wing plate facing the outer wing plate, and an inner one of said boom cylinder hinge seats is arranged on said support.
9. The forklift of claim 8, wherein said abutment is formed of a channel welded to an inboard wing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321976884.5U CN220317299U (en) | 2023-07-26 | 2023-07-26 | Front frame and fork loader |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321976884.5U CN220317299U (en) | 2023-07-26 | 2023-07-26 | Front frame and fork loader |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220317299U true CN220317299U (en) | 2024-01-09 |
Family
ID=89423226
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321976884.5U Active CN220317299U (en) | 2023-07-26 | 2023-07-26 | Front frame and fork loader |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220317299U (en) |
-
2023
- 2023-07-26 CN CN202321976884.5U patent/CN220317299U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |