CN216975387U

CN216975387U - Oil pressure elevator piston rod capable of preventing breakage

Info

Publication number: CN216975387U
Application number: CN202220379301.XU
Authority: CN
Inventors: 葛玲玲; 范锋; 张婷
Original assignee: Liyang Mingfeng Machinery Co ltd
Current assignee: Liyang Mingfeng Machinery Co ltd
Priority date: 2022-02-24
Filing date: 2022-02-24
Publication date: 2022-07-15
Anticipated expiration: 2032-02-24

Abstract

The utility model relates to the technical field of piston rods and discloses an oil pressure lifter piston rod capable of preventing breakage, which comprises a cylinder barrel, wherein a piston is arranged in the cylinder barrel, the outer wall of the piston is in contact with the inner wall of the cylinder barrel, the piston is fixedly connected with a piston rod, one end of the piston rod, which is far away from the piston, penetrates through the cylinder barrel and extends to the outside of the cylinder barrel, one end of the piston rod, which is outside the cylinder barrel, is fixedly connected with a connecting sleeve, a reinforcing rib is arranged on the outer wall of the piston rod, one end of the cylinder barrel is fixedly connected with a first sleeve, a second sleeve is arranged in the first sleeve, a third sleeve is arranged in the second sleeve, and one end of the third sleeve is fixedly connected with the connecting sleeve. Through setting up three sets of sleeves, guarantee that piston rod and adapter sleeve remain the vertically relation of connection throughout for the piston rod can not take place distortion.

Description

Oil pressure elevator piston rod capable of preventing breakage

Technical Field

The utility model relates to the technical field of piston rods, in particular to a piston rod of an oil pressure lifter, which can prevent breakage.

Background

The piston rod is a connecting component for supporting the piston to do work, most of the piston rod is applied to the oil cylinder and the air cylinder movement executing component, and the piston rod is a moving component with frequent movement and high technical requirements. Taking a hydraulic oil cylinder as an example, the hydraulic oil cylinder comprises: the cylinder barrel, the piston rod, the piston and the end cover. The quality of the processing quality directly influences the service life and the reliability of the whole product. The piston rod has high processing requirement, the surface roughness requirement of the piston rod is Ra0.4-0.8 mu m, and the requirements on coaxiality and wear resistance are strict. The oil cylinder rod is basically characterized in that a slender shaft is machined, the machining difficulty is high, and the machining personnel are always puzzled, an original lifter uses a piston rod as a driving mechanism, so that the piston rod drives a hinged frame to rotate, the purpose of lifting is achieved, the piston rod is in an inclined state in the lifting process of the hinged frame, the stress of a telescopic rod on the piston rod is not vertical, the piston rod is very easy to break, and therefore safety accidents occur.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an oil pressure lifter piston rod capable of preventing breakage, and the aim of solving the problems is fulfilled.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides an oil pressure lift piston rod that can prevent rupture, includes the cylinder, the inside of cylinder is provided with the piston, the outer wall of piston and the inner wall contact of cylinder, piston fixedly connected with piston rod, the piston rod is kept away from the one end of piston and is run through the cylinder and extend to the outside of cylinder, the piston rod is at the outside one end fixedly connected with adapter sleeve of cylinder, be provided with the strengthening rib on the outer wall of piston rod, the first sleeve of one end fixedly connected with of cylinder, be provided with the second sleeve in the first sleeve, be provided with the third sleeve in the second sleeve, telescopic one end of third and adapter sleeve fixed connection.

Preferably, the number of the reinforcing ribs is four, the four reinforcing ribs are symmetrically and fixedly connected to the outer wall of the piston rod, and the four reinforcing ribs are arranged, so that the reinforcing ribs can overcome distortion caused by uneven stress.

Preferably, the diameter of the front end of the first sleeve is smaller than that of the rear end of the second sleeve, and the diameter of the front end of the first sleeve is smaller than that of the rear end of the second sleeve, so that the second sleeve cannot be separated from the first sleeve.

Preferably, the diameter of the front end of the second sleeve is smaller than that of the rear end of the third sleeve, and the diameter of the front end of the second sleeve is smaller than that of the rear end of the third sleeve, so that the third sleeve cannot be separated from the second sleeve.

Preferably, the first sleeve, the second sleeve and the third sleeve are equal in length.

Preferably, the first sleeve, the second sleeve and the third sleeve are all connected in a sliding manner.

The utility model provides a piston rod of an oil pressure lifter, which can prevent breakage. The method has the following beneficial effects:

(1) the three groups of sleeves are arranged, so that the piston rod and the connecting sleeve are always kept in a vertical connection relationship, and the piston rod is prevented from being distorted and deformed.

(2) The utility model can overcome the distortion caused by uneven stress by arranging the reinforcing ribs.

Drawings

FIG. 1 is a front view of a hydraulic lifter piston rod that is resistant to breakage in accordance with the present invention;

FIG. 2 is a side view of a hydraulic lifter piston rod that is resistant to breakage in accordance with the present invention;

fig. 3 is a side sectional view of a piston rod of an oil pressure lifter piston rod capable of preventing breakage according to the present invention.

In the figure: 1. a cylinder barrel; 2. a piston; 3. a piston rod; 4. connecting sleeves; 5. reinforcing ribs; 6. a first sleeve; 7. a second sleeve; 8. a third sleeve.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the utility model and are not to be construed as limiting the utility model.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the utility model and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the utility model.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

As shown in fig. 1-3, the present invention provides the technical solutions: a piston rod of an oil pressure elevator capable of preventing breakage comprises a cylinder barrel 1, a piston 2 is arranged inside the cylinder barrel 1, the outer wall of the piston 2 is in contact with the inner wall of the cylinder barrel 1, the piston 2 is fixedly connected with a piston rod 3, one end, far away from the piston 2, of the piston rod 3 penetrates through the cylinder barrel 1 and extends to the outside of the cylinder barrel 1, one end, outside the cylinder barrel 1, of the piston rod 3 is fixedly connected with a connecting sleeve 4, reinforcing ribs 5 are arranged on the outer wall of the piston rod 3, a first sleeve 6 is fixedly connected with one end of the cylinder barrel 1, a second sleeve 7 is arranged in the first sleeve 6, a third sleeve 8 is arranged in the second sleeve 7, one end of the third sleeve 8 is fixedly connected with the connecting sleeve 4, the number of the reinforcing ribs 5 is four, the four reinforcing ribs 5 are symmetrically and fixedly connected on the outer wall of the piston rod 3, and by arranging the four reinforcing ribs 5, the reinforcing ribs 5 can overcome distortion caused by uneven stress, the diameter of first sleeve 6 front end is less than the diameter of second sleeve 7 rear end, the diameter through setting up first sleeve 6 front end is less than the diameter of second sleeve 7 rear end, can make second sleeve 7 can not break away from being connected with first sleeve 6, the diameter of second sleeve 7 front end is less than the diameter of third sleeve 8 rear end, the diameter through setting up second sleeve 7 front end is less than the diameter of third sleeve 8 rear end, can make third sleeve 8 can not break away from being connected with second sleeve 7, first sleeve 6, the length of second sleeve 7 and third sleeve 8 equals, first sleeve 6, second sleeve 7 and third sleeve 8 are sliding connection.

When the connecting sleeve is used, the piston 2 is driven to move under the acting force of the oil cylinder, the piston 2 drives the piston rod 3 to move, the piston rod 3 drives the connecting sleeve 4 to move, the reinforcing ribs 5 on the piston rod 3 can overcome the distortion caused by uneven stress, and the connecting sleeve 4 can drive the first sleeve 6, the second sleeve 7 and the third sleeve 8 to move simultaneously.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising a reference structure" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

Claims

1. The utility model provides a can prevent oil pressure lift piston rod of rupture, includes cylinder (1), its characterized in that: the inside of cylinder (1) is provided with piston (2), the outer wall of piston (2) and the inner wall contact of cylinder (1), piston (2) fixedly connected with piston rod (3), the one end that piston (2) were kept away from in piston rod (3) runs through cylinder (1) and extends to the outside of cylinder (1), piston rod (3) are at the outside one end fixedly connected with adapter sleeve (4) of cylinder (1), be provided with strengthening rib (5) on the outer wall of piston rod (3), the first sleeve (6) of one end fixedly connected with of cylinder (1), be provided with second sleeve (7) in first sleeve (6), be provided with third sleeve (8) in second sleeve (7), the one end and adapter sleeve (4) fixed connection of third sleeve (8).

2. The oil pressure lifter piston rod that can prevent breakage according to claim 1, characterized in that: the number of the reinforcing ribs (5) is four, and the four reinforcing ribs (5) are symmetrically and fixedly connected to the outer wall of the piston rod (3).

3. The oil pressure lifter piston rod that can prevent breakage according to claim 2, characterized in that: the diameter of the front end of the first sleeve (6) is smaller than that of the rear end of the second sleeve (7).

4. The oil pressure lifter piston rod that can prevent breakage according to claim 3, characterized in that: the diameter of the front end of the second sleeve (7) is smaller than that of the rear end of the third sleeve (8).

5. The oil pressure lifter piston rod that can prevent breakage of claim 4, characterized in that: the first sleeve (6), the second sleeve (7) and the third sleeve (8) are equal in length.

6. The oil pressure lifter piston rod that can prevent breakage of claim 5, characterized in that: the first sleeve (6), the second sleeve (7) and the third sleeve (8) are all in sliding connection.