CN211569892U - Hydraulic oil cylinder of truck-mounted crane - Google Patents

Abstract

The utility model discloses a truck-mounted crane hydraulic oil cylinder, which comprises an oil cylinder body, wherein a first fixing ring is fixedly connected on the extending end of a hydraulic rod of the oil cylinder body, a cleaning mechanism for cleaning the hydraulic rod is arranged between the first fixing ring and the oil cylinder body, the cleaning mechanism comprises two protective shells which are respectively clamped at the upper end and the lower end of the hydraulic rod, semicircular through grooves are respectively arranged at two sides of the two protective shells and close to one end of the hydraulic rod, the semicircular through grooves arranged on the two protective shells form a channel for the penetration of the liquid supply pressure rod, equal fixedly connected with sealing strip on the inside wall that the groove was led to the semicircle type, the inside wall of sealing strip all contacts with the lateral wall of hydraulic stem, two the inside splint that all are equipped with of protective housing, splint all are semicircle type structure, the equal joint of splint is on the lateral wall of hydraulic stem.

Description

Hydraulic oil cylinder of truck-mounted crane

Technical Field

The utility model relates to a hydraulic cylinder technical field specifically is a truck-mounted crane hydraulic cylinder.

Background

The lorry-mounted crane is a hoisting device, the hydraulic oil cylinder is one of components on the lorry-mounted crane, at present, when the hydraulic oil cylinder mounted on the lorry-mounted crane works, a hydraulic rod is pushed out of an oil cylinder body, air floating foreign matters are easily stuck on the outer side wall of the hydraulic rod, and when the hydraulic rod is withdrawn, the foreign matters are easily accumulated at an opening of the hydraulic oil cylinder to cause certain resistance to the movement of the hydraulic rod.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a can carry out clear lorry-mounted crane hydraulic cylinder to the hydraulic stem.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides a lorry-mounted crane hydraulic cylinder, includes the hydro-cylinder body, the first solid fixed ring of fixedly connected with on the extension end of the hydraulic stem of hydro-cylinder body, first solid fixed ring with be equipped with between the hydro-cylinder body and be used for carrying out clear clearance mechanism to the hydraulic stem, clearance mechanism includes two protective housing, two the protective housing joint is respectively at the upper and lower end of hydraulic stem, two the one end that the protective housing both sides are close to the hydraulic stem all is equipped with the logical groove of semicircle type, two the logical groove of semicircle type that sets up on the protective housing constitutes the passageway that supplies the liquid pressure pole to alternate, equal fixedly connected with sealing strip on the logical inside wall of groove of semicircle type, the inside wall of sealing strip all contacts with the lateral wall of hydraulic stem, two the inside splint that all is equipped with of protective housing, splint all are semicircle type structure, the.

Furthermore, two supporting plates are fixedly connected to one sides, far away from the hydraulic rod, of the outer portions of the two protective cases, bolts are inserted into the supporting plates, and the bolts penetrate through the supporting plates and are connected to the oil cylinder body in a threaded mode.

The equal fixedly connected with fixed block in one side that hydraulic stem was kept away from to splint, the first compression spring of the equal fixedly connected with in one side that the fixed block kept away from place splint, the equal fixedly connected with installation piece in one side that the fixed block was kept away from to first compression spring, the equal fixed connection in one side that the first compression spring in place was kept away from to the installation piece is inside homonymy protective housing.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses a set up clearance mechanism on neotype hydro-cylinder body, in operation, when the hydraulic stem is withdrawed hydro-cylinder body inside, clearance mechanism's sealing strip and splint can slide on the lateral wall of hydraulic stem, and scrape the foreign matter that glues on the hydraulic stem lateral wall, prevent that these foreign matters from hindering the motion of hydraulic stem, solved the hydraulic stem when being released the hydro-cylinder body, the showy foreign matter of air glues easily on the lateral wall of hydraulic stem, the hydraulic stem is when being withdrawn hydraulic cylinder, hydraulic cylinder's opening part is piled up easily to these foreign matters, the problem of certain resistance is caused to the motion of hydraulic stem.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of the cleaning mechanism of the present invention;

fig. 3 is a schematic structural view of a second fixing ring of the present invention.

In the figure: 1. an oil cylinder body; 2. a hydraulic lever; 3. a cleaning mechanism; 31. a protective shell; 32. a through groove; 33. a sealing strip; 34. mounting blocks; 35. a first compression spring; 36. a fixed block; 37. a splint; 38. a support plate; 39. a bolt; 4. a first retaining ring; 5. a second retaining ring; 6. a third fixing ring; 7. a limiting rod; 8. a second compression spring; 9. a limiting ring; 10. and (4) inserting the jack.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: the utility model provides a lorry-mounted crane hydraulic cylinder, including hydro-cylinder body 1, one side of hydro-cylinder body 1 is inserted and is equipped with hydraulic stem 2, fixedly connected with first solid fixed ring 4 on the lateral wall of hydraulic stem 2, one side of hydro-cylinder body 1 is equipped with clearance mechanism 3, clearance mechanism 3 is located between hydro-cylinder body 1 and first solid fixed ring 4, the solid fixed ring 5 of opposite side fixedly connected with second of hydro-cylinder body 1, the solid fixed ring 5 of second is close to all is equipped with jack 10 on one side at hydro-cylinder body 1 middle part, fixedly connected with third solid fixed ring 6 on the middle part lateral wall of hydro-cylinder body 1, the last lower extreme of third solid fixed ring 6 is all inserted and is equipped with gag lever post 7, gag lever post 7 all is parallel with hydro-cylinder body 1, the motion of gag lever post 7 of being convenient for, equal swing joint of gag lever post 7 is on third solid fixed ring 6, the equal fixed ring 5's of one end fixed ring 4 is kept away from to gag lever post 7 A spring 8.

The cleaning mechanism 3 comprises two protective shells 31, the two protective shells 31 are respectively clamped at the upper end and the lower end of the hydraulic rod 2, one ends of the two protective shells 31 close to the hydraulic rod 2 are respectively provided with a semicircular through groove 32, the through grooves 32 arranged on the two protective shells 31 are convenient to be same and corresponding in size, the inner side walls of the through grooves 32 are respectively and fixedly connected with a sealing strip 33, the inner side walls of the sealing strips 33 are respectively contacted with the outer side wall of the hydraulic rod 2 so as to be convenient for scraping off foreign matters on the outer side wall of the hydraulic rod 2, clamping plates 37 are respectively arranged inside the two protective shells 31, the clamping plates 37 are respectively in a semicircular structure, the clamping plates 37 are respectively clamped on the outer side wall of the hydraulic rod 2, one sides of the two protective shells 31, which are far away from the hydraulic rod 2, supporting plates 38 are respectively and are respectively inserted with bolts 39, the bolts 39 respectively penetrate, one side of the clamping plate 37, which is far away from the hydraulic rod 2, is fixedly connected with a fixed block 36, one side of the fixed block 36, which is far away from the clamping plate 37, is fixedly connected with a first compression spring 35, one side of the first compression spring 35, which is far away from the fixed block 36, is fixedly connected with an installation block 34, one side of the installation block 34, which is far away from the first compression spring 35, is fixedly connected inside the same-side protection shell 31, so that the clamping plate 37 is abutted against the outer side wall of the hydraulic rod 2, one side of the second compression spring 8, which is far away from the first fixing ring 4, is fixedly connected on a third fixing ring 6, one side of the second compression spring 8, which is far away from the third fixing ring 6, is fixedly connected on the first fixing ring 4, so that the second compression spring 8 can extrude the first fixing ring 4, the diameter of the limiting rod 7 is smaller than that of the same-side jack 10, so, the one end that first solid fixed ring 4 was kept away from to gag lever post 7 all inserts in the inside of homonymy jack 10, and the equal fixedly connected with spacing ring 9 of one end that first solid fixed ring 4 was kept away from to the gag lever post 7 lateral wall is convenient for fix the one end that first solid fixed ring 4 was kept away from to gag lever post 7.

Specifically, when the utility model is used, the utility model is arranged on a truck-mounted crane, one end of the hydraulic rod 2 is arranged with the pushed truck-mounted crane component, when the hydraulic rod 2 is pushed out of the oil cylinder body 1, the second compression spring 8 applies an acting force with the same direction as the moving direction of the hydraulic rod 2 to the first fixing ring 4 to push the hydraulic rod 2, thereby reducing the load of the internal elements of the oil cylinder body 1, because the cleaning mechanism 3 is arranged on the oil cylinder body 1, when the hydraulic rod 2 is withdrawn into the oil cylinder body 1, the sealing strip 33 and the clamping plate 37 of the cleaning mechanism 3 can slide on the outer side wall of the hydraulic rod 2, and scrape off the foreign matters stuck on the outer side wall of the hydraulic rod 2, thereby preventing the foreign matters from blocking the movement of the hydraulic rod 2, when cleaning, the bolt 39 is dismounted, and the two protective cases 31 are dismounted from the hydraulic rod 2, and clear up the foreign matter on sealing strip 33 and the splint 37, block two protective housing 31 respectively in the upper and lower extreme of hydraulic stem 2 again to be in the same place two protective housing 31 joint, and fix two protective housing 31 on hydro-cylinder body 1 through bolt 39 can.

In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second", "third", "fourth" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated, whereby the features defined as "first", "second", "third", "fourth" may explicitly or implicitly include at least one such feature.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "disposed," "connected," "fixed," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (3)

1. A hydraulic oil cylinder of a truck-mounted crane comprises an oil cylinder body (1) and is characterized in that a first fixing ring (4) is fixedly connected to the extending end of a hydraulic rod (2) of the oil cylinder body (1), a cleaning mechanism (3) for cleaning the hydraulic rod (2) is arranged between the first fixing ring (4) and the oil cylinder body (1), the cleaning mechanism (3) comprises two protective shells (31), the two protective shells (31) are respectively clamped at the upper end and the lower end of the hydraulic rod (2), semicircular through grooves (32) are respectively arranged at two ends of each protective shell (31) close to the hydraulic rod (2), the semicircular through grooves (32) arranged on the two protective shells (31) form a channel for inserting a liquid supply pressure rod, sealing strips (33) are fixedly connected to the inner side walls of the semicircular through grooves (32), the inner side walls of the sealing strips (33) are all contacted with the outer side walls of the hydraulic rod (2), two protective housing (31) inside all is equipped with splint (37), splint (37) all are semicircle type structure, the equal joint of splint (37) is on the lateral wall of hydraulic stem (2).

2. The truck mounted crane hydraulic oil cylinder according to claim 1, characterized in that: two equal fixedly connected with extension board (38) of one side of protective housing (31) outside keeping away from hydraulic stem (2), all insert on extension board (38) and be equipped with bolt (39), bolt (39) all run through place extension board (38) and equal threaded connection is on hydro-cylinder body (1).

3. The truck mounted crane hydraulic oil cylinder according to claim 1, characterized in that: the equal fixedly connected with fixed block (36) in one side that hydraulic stem (2) were kept away from in splint (37), the equal fixedly connected with first compression spring (35) in one side that place splint (37) were kept away from in fixed block (36), the equal fixedly connected with installation piece (34) in one side that place fixed block (36) were kept away from in first compression spring (35), the equal fixed connection in one side that place first compression spring (35) were kept away from in installation piece (34) is inside homonymy protective housing (31).

Images