CN216038497U - Hydraulic plunger oil cylinder structure with bearing rotating mechanism - Google Patents
Hydraulic plunger oil cylinder structure with bearing rotating mechanism Download PDFInfo
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- CN216038497U CN216038497U CN202122176664.1U CN202122176664U CN216038497U CN 216038497 U CN216038497 U CN 216038497U CN 202122176664 U CN202122176664 U CN 202122176664U CN 216038497 U CN216038497 U CN 216038497U
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Abstract
The utility model relates to a hydraulic plunger cylinder structure with a bearing rotating mechanism, which belongs to a part in a carrier. The utility model comprises an oil cylinder base welding part, a spring seat, an oil pump spring, a spring gland, a pump core, a steel ball, a plunger rod, a guide sleeve, an oil cylinder welding part, a tapered roller bearing and a deep groove ball bearing, wherein the steel ball is arranged at the upper end of the plunger rod, the spring seat, the oil pump spring, the spring gland and the pump core are sequentially sleeved on the oil cylinder base welding part, the oil cylinder welding part and the oil cylinder base welding part adopt a split structure, the oil cylinder welding part bears a load force through the axial thrust force of the tapered roller bearing, and the plunger rod and the guide sleeve adopt rolling friction through the tapered roller bearing and the deep groove ball bearing. The utility model has simple and reasonable structure design, stability and reliability, reduces the friction force, lightens the labor intensity of operators and meets the use requirement.
Description
Technical Field
The utility model relates to a structure, in particular to a hydraulic plunger cylinder structure with a bearing rotating mechanism, which belongs to a part in a carrier.
Background
Referring to fig. 1, the main structure of the carrier comprises a control handle 1-1, a hydraulic plunger oil cylinder 1-2, a driving assembly 1-3 and a pallet fork system 1-4, wherein the driving assembly 1-3 and the pallet fork system 1-4 are connected together through the hydraulic plunger oil cylinder 1-2, the hydraulic plunger oil cylinder 1-2 is connected with the pallet fork system through a steel ball, and an oil cylinder base is connected with the driving assembly 1-3 in a welded mode.
Because the driving assembly 1-3 has a steering function, the hydraulic plunger cylinder 1-2 and the pallet fork system 1-4 have relative steering movement when steering, and because the cylinder plunger rod is contacted with the pallet fork system 1-4 through the steel ball, the friction force is larger, so the plunger rod is static and non-rotating relative to the pallet fork system 1-4.
The oil cylinder welding and the oil cylinder base welding in the existing hydraulic plunger oil cylinder 1-2 structure are welded into a whole, so that the steering motion of the hydraulic plunger oil cylinder 1-2 and the pallet fork system 1-4 is actually the sliding friction between the plunger rod and the guide sleeve when the carrier steers, and the rotating friction force is very large under the action of gravity when the carrier is heavily loaded.
In order to improve the phenomenon of large rotating friction force, the hydraulic plunger oil cylinder 1-2 is provided, which can realize the defects and is particularly necessary.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects in the prior art, and provides the hydraulic plunger cylinder structure with the bearing rotating mechanism, which has simple and reasonable structural design, is stable and reliable, reduces the friction force and lightens the labor intensity of an operator.
The technical scheme adopted by the utility model for solving the problems is as follows: this take bearing rotary mechanism's hydraulic pressure plunger hydro-cylinder structure, including hydro-cylinder base welding, spring holder, oil pump spring, spring gland, pump heart, steel ball, plunger rod, uide bushing and hydro-cylinder welding, the upper end of plunger rod is provided with the steel ball, and spring holder, oil pump spring, spring gland and pump heart cup joint its characterized in that on hydro-cylinder base welding in proper order: the hydraulic cylinder welding and oil cylinder base welding adopt a split structure, the oil cylinder welding bears load force through axial thrust force of the tapered roller bearing, and rolling friction is adopted between the plunger rod and the guide sleeve through the tapered roller bearing and the deep groove ball bearing.
Preferably, the utility model also comprises an oil cylinder sleeve and a bearing cover, wherein the oil cylinder sleeve is axially and radially positioned through the bearing cover and the guide sleeve.
Preferably, the oil-sealed bearing further comprises a polyurethane dustproof ring, a first O-shaped sealing ring, a polyurethane oil seal for the UN shaft, a sealing gasket and a second O-shaped sealing ring, wherein the polyurethane dustproof ring, the first O-shaped sealing ring, the polyurethane oil seal for the UN shaft, the sealing gasket and the second O-shaped sealing ring are sequentially arranged between the oil cylinder sleeve and the guide sleeve.
Preferably, the present invention further includes a circlip for a shaft provided at a lower portion of the deep groove ball bearing.
Preferably, the oil cylinder further comprises an inner hexagonal cylindrical head bolt and a nut, wherein the inner hexagonal cylindrical head bolt penetrates through the oil cylinder base and is fixed through the nut in a welding mode.
Preferably, the utility model further comprises two round nuts arranged between the cylinder sleeve and the bearing cap.
Compared with the prior art, the utility model has the following advantages and effects: the integral structure is simple and reasonable in design, the original structure that the oil cylinder is welded and welded with the oil cylinder base is changed into a split structure which is connected through a bearing, and the oil cylinder is welded to bear the load force through the axial thrust force of the tapered roller bearing; the tapered roller bearing and the deep groove ball bearing change the sliding friction between the original plunger rod and the guide sleeve into rolling friction, so that the friction force is greatly reduced, and the labor intensity of an operator is reduced; the oil cylinder sleeve adopts an assembled structure, so that the internal mechanism of the oil cylinder is protected from being damaged easily.
Drawings
Fig. 1 is a main structural schematic diagram of a conventional carrier.
In fig. 1: the forklift comprises a control handle 1-1, a hydraulic plunger oil cylinder 1-2, a driving assembly 1-3 and a pallet fork system 1-4.
Fig. 2 is a schematic structural diagram of a hydraulic plunger cylinder structure according to an embodiment of the utility model.
Fig. 3 is a schematic structural diagram of a first state (plunger rod retracted) of the hydraulic plunger cylinder according to the embodiment of the present invention.
Fig. 4 is a schematic structural diagram of a second state (plunger rod extending) of the hydraulic plunger cylinder according to the embodiment of the utility model.
In fig. 2 to 4: the oil cylinder comprises an oil cylinder base welding 1, a spring seat 2, an oil pump spring 3, a spring gland 4, a pump core 5, a steel ball 6, a plunger rod 7, a guide sleeve 8, a polyurethane dustproof ring 9, a first O-shaped sealing ring 10, a polyurethane oil seal 11 for a UN shaft, a sealing gasket 12, a second O-shaped sealing ring 13, an oil cylinder sleeve 14, a round nut 15, a bearing cover 16, a tapered roller bearing 17, an oil cylinder welding 18, an inner hexagonal cylindrical head bolt 19, a deep groove ball bearing 20, a shaft elastic retainer ring 21 and a nut 22.
Detailed Description
The present invention will be described in further detail below by way of examples with reference to the accompanying drawings, which are illustrative of the present invention and are not to be construed as limiting the present invention.
Examples are given.
Referring to fig. 2 to 4, the hydraulic plunger cylinder structure with the bearing rotating mechanism in this embodiment mainly includes a cylinder base welding 1, a spring seat 2, an oil pump spring 3, a spring gland 4, a pump core 5, a steel ball 6, a plunger rod 7, a guide sleeve 8, a cylinder welding 18, a tapered roller bearing 17 and a deep groove ball bearing 20, the steel ball 6 is arranged at the upper end of the plunger rod 7, and the spring seat 2, the oil pump spring 3, the spring gland 4 and the pump core 5 are sequentially sleeved on the cylinder base welding 1.
In the embodiment, the oil cylinder welding 18 and the oil cylinder base welding 1 adopt a split structure, the oil cylinder welding 18 bears load force through axial thrust force of the tapered roller bearing 17, and rolling friction is adopted between the plunger rod 7 and the guide sleeve 8 through the tapered roller bearing 17 and the deep groove ball bearing 20.
The cylinder liner 14 of the present embodiment is axially and radially positioned by the bearing cap 16 and the guide sleeve 8.
In this embodiment, a polyurethane wiper 9, a first O-ring 10, a polyurethane oil seal 11 for the UN shaft, a seal 12, and a second O-ring 13 are sequentially disposed between the cylinder liner 14 and the guide sleeve 8.
The circlip 21 for the shaft of the present embodiment is provided at the lower portion of the deep groove ball bearing 20.
The hexagon socket head cap screw 19 of this embodiment is fixed by a nut 22 through the cylinder base welding 1.
Two round nuts 15 are provided between the cylinder liner 14 and the bearing cap 16 in this embodiment.
This embodiment has designed this kind of hydraulic pressure plunger hydro-cylinder with bearing in order to improve the big phenomenon of rotational friction: the original structure that the oil cylinder welding 18 and the oil cylinder base welding 1 are welded into a whole is changed into a split structure which is connected through a bearing, and the oil cylinder welding 18 bears the load force through the axial thrust force of the tapered roller bearing 17.
In the embodiment, the tapered roller bearing 17 and the deep groove ball bearing 20 change the sliding friction between the original plunger rod 7 and the guide sleeve 8 into rolling friction, so that the friction force is greatly reduced, and the labor intensity of an operator is reduced.
The cylinder sleeve 14 of the embodiment adopts an assembly type structure, and has the structural characteristics that: the oil cylinder sleeve 14 is axially and radially positioned through the bearing cover 16 and the guide sleeve 8, the internal mechanism of the oil cylinder is protected from being damaged easily due to the oil cylinder sleeve 14, the effect of hiding the internal structure is achieved in appearance, and the oil cylinder is unique from a common hydraulic oil cylinder in appearance.
In the embodiment, a hydraulic plunger cylinder is connected with a pallet fork system through a steel ball 6, a cylinder base welding 1 is connected with a driving assembly of a transport vehicle, the pallet fork system of the transport vehicle is lifted by the extension and contraction of a plunger rod 7 in the hydraulic plunger cylinder, and referring to fig. 3, when the plunger rod in the hydraulic plunger cylinder retracts, the pallet fork system of the transport vehicle is in a lowered state; referring to FIG. 4, the truck fork system is raised when the plunger rod in the hydraulic plunger cylinder is extended.
And will be apparent to those skilled in the art from the foregoing description.
In addition, it should be noted that the specific embodiments described in the present specification may be different in the components, the shapes of the components, the names of the components, and the like, and the above description is only an illustration of the structure of the present invention. Equivalent or simple changes in the structure, characteristics and principles of the utility model are included in the protection scope of the patent. Various modifications, additions and substitutions for the specific embodiments described may be made by those skilled in the art without departing from the scope of the utility model as defined in the accompanying claims.
Claims (6)
1. The utility model provides a tape spool holds rotary mechanism's hydraulic pressure plunger hydro-cylinder structure, includes hydro-cylinder base welding (1), spring holder (2), oil pump spring (3), spring gland (4), pump heart (5), steel ball (6), plunger rod (7), uide bushing (8) and hydro-cylinder welding (18), the upper end of plunger rod (7) is provided with steel ball (6), and spring holder (2), oil pump spring (3), spring gland (4) and pump heart (5) cup joint its characterized in that on hydro-cylinder base welding (1) in proper order: the hydraulic cylinder welding device is characterized by further comprising a tapered roller bearing (17) and a deep groove ball bearing (20), the oil cylinder welding (18) and the oil cylinder base welding (1) adopt a split structure, the oil cylinder welding (18) bears load force through axial thrust of the tapered roller bearing (17), and rolling friction is adopted between the plunger rod (7) and the guide sleeve (8) through the tapered roller bearing (17) and the deep groove ball bearing (20).
2. The hydraulic plunger cylinder structure with the bearing rotating mechanism according to claim 1, wherein: the oil cylinder sleeve (14) is axially and radially positioned through the bearing cover (16) and the guide sleeve (8).
3. The hydraulic plunger cylinder structure with the bearing rotating mechanism according to claim 1, wherein: still include polyurethane dust ring (9), O shape sealing washer (10), UN axle with polyurethane oil blanket (11), sealed pad (12) and O shape sealing washer two (13), polyurethane dust ring (9), O shape sealing washer (10), UN axle with polyurethane oil blanket (11), sealed pad (12), O shape sealing washer two (13) set gradually between cylinder liner (14) and uide bushing (8).
4. The hydraulic plunger cylinder structure with the bearing rotating mechanism according to claim 1, wherein: the deep groove ball bearing further comprises a shaft elastic retainer ring (21), and the shaft elastic retainer ring (21) is arranged at the lower part of the deep groove ball bearing (20).
5. The hydraulic plunger cylinder structure with the bearing rotating mechanism according to claim 1, wherein: the oil cylinder is characterized by further comprising an inner hexagonal cylindrical head bolt (19) and a nut (22), wherein the inner hexagonal cylindrical head bolt (19) penetrates through the oil cylinder base to be welded (1) and is fixed through the nut (22).
6. The hydraulic ram cylinder structure with a bearing rotating mechanism according to claim 2, characterized in that: the oil cylinder further comprises two round nuts (15), and the two round nuts (15) are arranged between the oil cylinder sleeve (14) and the bearing cover (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122176664.1U CN216038497U (en) | 2021-09-09 | 2021-09-09 | Hydraulic plunger oil cylinder structure with bearing rotating mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122176664.1U CN216038497U (en) | 2021-09-09 | 2021-09-09 | Hydraulic plunger oil cylinder structure with bearing rotating mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216038497U true CN216038497U (en) | 2022-03-15 |
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ID=80536270
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122176664.1U Active CN216038497U (en) | 2021-09-09 | 2021-09-09 | Hydraulic plunger oil cylinder structure with bearing rotating mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216038497U (en) |
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2021
- 2021-09-09 CN CN202122176664.1U patent/CN216038497U/en active Active
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