CN219198008U

CN219198008U - Pin sleeve with sealing element structure

Info

Publication number: CN219198008U
Application number: CN202222960861.7U
Authority: CN
Inventors: 李传海; 宋正健; 冯现卫; 闫光伟; 柳小龙
Original assignee: Xuzhou Fanglong Construction Machinery Co ltd
Current assignee: Xuzhou Fanglong Construction Machinery Co ltd
Priority date: 2022-11-08
Filing date: 2022-11-08
Publication date: 2023-06-16
Anticipated expiration: 2032-11-08

Abstract

The utility model provides a pin shaft sleeve with a sealing element structure, which comprises a pin shaft sleeve, wherein shaft grooves are formed in two ends of the pin shaft sleeve, sealing components are arranged in each shaft groove, annular end cover plates are connected to two ends of the pin shaft sleeve, a lubricating grease layer is coated on the inner annular wall of a bearing seat, an inner annular body is connected to the inner annular arm of the bearing seat, a connecting mechanism is arranged on the inner annular body, a sealing groove is arranged in an inner cavity of the inner annular body in a surrounding mode, and an inner sealing ring matched with the sealing groove is connected in the sealing groove. The application provides a take sealing member structure round pin axle sleeve, this round pin axle sleeve can carry out effectual sealed processing to being in the round pin axle sleeve and inserting the gap department between the round pin axle of locating inside the round pin axle sleeve to can effectively avoid dust and tiny particle impurity to invade the inside condition emergence that causes wearing and tearing to round pin axle sleeve inner wall and round pin axle outer wall of round pin axle sleeve, be favorable to promoting the life of round pin axle sleeve, guarantee the normal operating of the round pin axle of inserting in the round pin axle sleeve.

Description

Pin sleeve with sealing element structure

Technical Field

The utility model relates to the technical field of connecting pieces, and particularly discloses a pin shaft sleeve with a sealing piece structure.

Background

The pin bushing is part of a sealing system and is mainly used for protecting the main shaft from wear (replacing the bushing saves time and money compared with replacing the shaft-if the bushing is not used, the static pair of the mechanical seal directly abrades the main shaft, and the main shaft is damaged for a long time).

The caterpillar track assembly used for bulldozers, excavators and the like is formed by hinging a single caterpillar track section by section, and the assembly process of the caterpillar track assembly is as follows: the left and right caterpillar track links are connected into a group of caterpillar track links through pin sleeves, and then the group of caterpillar track links are connected with the other group of caterpillar track links through pin shafts.

In the prior art, the pin bush is mostly difficult to realize sealing treatment on the gap between the pin bush and the pin shaft, after an operator installs the pin shaft in the pin bush of the caterpillar link pin bush, when mechanical equipment such as a bulldozer works for a long time in a construction site with more dust, fine particle impurities and other dirt in the construction site easily invade the inside of the pin bush through the gap between the pin bush and the pin shaft, so that the abrasion on the inner wall of the pin bush and the outer wall of the pin shaft can be increased, the service life of the pin bush is reduced, and the normal operation of the pin shaft inserted in the pin bush is influenced.

Disclosure of Invention

In view of the above-mentioned defect or not enough among the prior art, this application aims at providing a take sealing member structure round pin axle sleeve, including the round pin axle sleeve, the axle groove has all been seted up at the both ends of round pin axle sleeve, all be equipped with seal assembly in every axle groove, the both ends of round pin axle sleeve all are connected with annular end cover plate, and one side that annular end cover plate is close to round pin axle sleeve tip is connected with the density packing ring, seal assembly includes the bearing frame with the internal diameter size looks adaptation of axle groove, the coating has the lubricating grease layer on the inner ring wall of bearing frame, the outer ring wall of bearing frame is connected with the lateral wall of axle groove inner chamber, be connected with the inscription ring body on the inner ring arm of bearing frame, be equipped with coupling mechanism on the inscription ring body, the inner chamber ring of inscription ring body is equipped with the seal groove, be connected with the interior sealing ring rather than looks adaptation in the seal groove.

Preferably, the outer annular wall of the bearing seat is uniformly connected with a plurality of positioning side convex blocks, the side wall of the shaft groove inner cavity is provided with a limiting slot matched with the positioning side convex blocks at the positions corresponding to the positioning side convex blocks, and each positioning side convex block is respectively and fixedly connected with the inside of the corresponding limiting slot.

Preferably, the inner diameter of the inner ring body is identical to the inner diameter of the pin sleeve.

Preferably, the inner diameter dimension of the annular end cover plate is consistent with the outer diameter dimension of the inner connecting ring body, the outer diameter dimension of the annular end cover plate is consistent with the outer diameter dimension of the pin shaft sleeve, and one end of the inner connecting ring body, which is far away from the pin shaft sleeve, penetrates through the inner cavity of the annular end cover plate.

Preferably, the connecting mechanism comprises two propping tight seats which are symmetrically arranged, the opposite surfaces of the two propping tight seats are respectively provided with a curved surface which can be attached to the outer wall of the inner ring body, the propping tight seats are respectively penetrated and inserted with a fixing screw, the fixing screw comprises a screw rod and a screw head, the screw head is provided with a cross groove which can be used for inserting a screwdriver bit and is provided with the fixing screw to rotate, one end of the screw head, which is close to the screw rod, is connected with an annular anti-slip sheet, and the annular anti-slip sheet is annularly arranged on the periphery of the screw rod.

Preferably, the inner ring body is arranged between the two abutting seats, the curved surface on the abutting seat is attached to the outer wall of the inner ring body, and one end of the screw rod, which is far away from the connected screw head, penetrates through the inner ring body and stretches into the inner ring body.

Preferably, the curved surface of the abutting seat is connected with a guide sliding block, an insertion groove matched with the guide sliding block is vertically formed in the position, corresponding to the guide sliding block, of the side wall of the inner ring body, and the guide sliding block is movably inserted into the corresponding insertion groove.

Preferably, the end of the bearing housing is flush with the end of the pin bushing.

The beneficial effects are that:

1. the application provides a take sealing member structure round pin axle sleeve, this round pin axle sleeve can carry out effectual sealed processing to being in the round pin axle sleeve and inserting the gap department between the round pin axle of locating inside the round pin axle sleeve to can effectively avoid dust and tiny particle impurity to invade the inside condition emergence that causes wearing and tearing to round pin axle sleeve inner wall and round pin axle outer wall of round pin axle sleeve, be favorable to promoting the life of round pin axle sleeve, guarantee the normal operating of the round pin axle of inserting in the round pin axle sleeve.

2. After inserting the round pin axle to the round pin axle sleeve inside, obtain the periphery at the round pin axle with the bearing frame through set screw, the grease layer through coating on the bearing frame inner ring wall is tentatively realized carrying out sealing treatment to the gap department between round pin axle sleeve and the round pin axle, avoid dirt such as dust to invade to the round pin axle sleeve inside through the gap between round pin axle sleeve and the round pin axle, still do not influence the normal deflection of round pin axle simultaneously, the inner seal ring that the rethread cover was located the round pin axle periphery and is hugged closely in the round pin axle outer wall realizes further sealing treatment to the gap department between round pin axle and the round pin axle sleeve, thereby can effectively avoid dust and tiny granule impurity to invade to the round pin axle sleeve inside, prevent that the foreign matter of invasion from causing wearing and tearing to the inner wall of round pin axle sleeve and the outer wall of round pin axle.

Drawings

Other features, objects and advantages of the present application will become more apparent upon reading of the detailed description of non-limiting embodiments, made with reference to the following drawings, in which:

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is an enlarged partial schematic view of the present utility model at A in FIG. 1;

FIG. 3 is an enlarged partial schematic view of the present utility model at B in FIG. 2;

fig. 4 is a perspective view of an embodiment of the present utility model, wherein the pin shaft is in a state of being inserted into the interior of the pin shaft sleeve.

In the figure:

1. a pin sleeve; 2. an annular end cover plate; 3. a density washer; 4. a bearing seat; 5. positioning the side bump; 6. an inner ring body; 9. a pressing seat; 10. a fixing screw; 11. an annular antislip sheet; 12. an inner seal ring; 13. and a guide sliding block.

Detailed Description

The present application is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting of the utility model. It should be noted that, for convenience of description, only the portions related to the utility model are shown in the drawings.

The drawings in the embodiments of the utility model: the different kinds of cross-sectional lines in the drawings are not marked according to national standards, and the material of the elements is not required, so that the cross-sectional views of the elements in the drawings are distinguished.

Referring to fig. 1 and 2, a pin shaft sleeve with a sealing element structure comprises a pin shaft sleeve 1, shaft grooves are formed in two ends of the pin shaft sleeve 1, sealing assemblies are arranged in each shaft groove, annular end cover plates 2 are connected to two ends of the pin shaft sleeve 1, a density gasket 3 is connected to one side, close to the end of the pin shaft sleeve 1, of each annular end cover plate 2, each sealing assembly comprises a bearing seat 4 matched with the inner diameter of each shaft groove in size, a lubricating grease layer is coated on the inner annular wall of each bearing seat 4, the outer annular wall of each bearing seat 4 is connected with the side wall of an inner cavity of each shaft groove, an inner annular arm of each bearing seat 4 is connected with an inner annular body 6, a connecting mechanism is arranged on each inner annular body 6, a sealing groove is arranged in an inner cavity ring of each inner annular body 6, and an inner sealing ring 12 matched with each sealing groove is connected in each sealing groove. Wherein the end of the bearing seat 4 is flush with the end of the pin sleeve 1. Wherein, evenly be connected with a plurality of location side lug 5 on the outer rampart of bearing frame 4, the spacing slot rather than looks adaptation has all been seted up to the position corresponding department with every location side lug 5 on the lateral wall of axle groove inner chamber, and every location side lug 5 is fixed connection respectively in the spacing slot inside that corresponds respectively. Wherein the inner diameter of the inner ring body 6 is consistent with the inner diameter of the pin sleeve 1. The inner diameter size of the annular end cover plate 2 is consistent with the outer diameter size of the inner connecting ring body 6, the outer diameter size of the annular end cover plate 2 is consistent with the outer diameter size of the pin shaft sleeve 1, and one end, far away from the pin shaft sleeve 1, of the inner connecting ring body 6 penetrates through the inner cavity of the annular end cover plate 2. After the pin shaft passes through the bearing seat 4, the sealing treatment of the gap between the pin shaft sleeve 1 and the pin shaft can be preliminarily realized through the lubricating grease layer coated on the inner annular wall of the bearing seat 4, and dirt such as dust is prevented from invading into the pin shaft sleeve 1 through the gap between the pin shaft sleeve 1 and the pin shaft.

Please refer to fig. 3, wherein the connecting mechanism includes two symmetrical supporting seats 9, the opposite surfaces of the two supporting seats 9 are respectively provided with a curved surface capable of being attached to the outer wall of the inner ring body 6, the supporting seats 9 are respectively penetrated and inserted with a fixing screw 10, the fixing screw 10 includes a screw rod and a screw head, the screw head is provided with a cross slot for inserting a screwdriver bit and driving the fixing screw 10 to rotate, one end of the screw head, which is close to the screw rod, is connected with an annular non-slip sheet 11, and the annular non-slip sheet 11 is annularly arranged on the periphery of the screw rod. The inner ring body 6 is disposed between the two abutting seats 9, and the curved surface on the abutting seat 9 is attached to the outer wall of the inner ring body 6, and one end of the screw rod, which is far away from the connected screw head, penetrates through the inner ring body 6 and extends into the inner ring body 6. The curved surface of the abutting seat 9 is connected with a guide sliding block 13, an insertion groove matched with the guide sliding block 13 is vertically formed in the position, corresponding to the guide sliding block 13, of the side wall of the inner ring body 6, and the guide sliding block 13 is movably inserted into the corresponding insertion groove. The bearing seat 4 is installed and fixed on the periphery of the pin shaft through the fixing screw 10, and further sealing treatment is realized on the gap between the pin shaft and the pin shaft sleeve 1 through the inner sealing ring 12 which is sleeved on the periphery of the pin shaft and clings to the outer wall of the pin shaft, so that dust and tiny particle impurities can be effectively prevented from invading into the pin shaft sleeve 1, and the invading foreign matters are prevented from wearing the inner wall of the pin shaft sleeve 1 and the outer wall of the pin shaft.

Referring to fig. 1 to 4, the present application provides a pin bushing with a seal structure, where the pin bushing can seal the gap between the pin bushing 1 and the pin shaft inserted in the pin bushing 1 effectively, so as to effectively avoid dust and fine particle impurities from invading the pin bushing 1 and causing abrasion to the inner wall of the pin bushing 1 and the outer wall of the pin shaft, which is beneficial to prolonging the service life of the pin bushing and ensuring the normal operation of the pin shaft inserted in the pin bushing.

The pin shaft is inserted into the pin shaft sleeve 1, a layer of lubricating grease is coated on the inner wall of the pin shaft sleeve 1 before the pin shaft is inserted into the pin shaft sleeve 1, friction force between the pin shaft and the inner wall of the pin shaft sleeve 1 is reduced through the lubricating grease, the bearing seat 4 is installed and fixed on the periphery of the pin shaft through the fixing screw 10, after the pin shaft passes through the inner part of the bearing seat 4, sealing treatment can be primarily achieved on a gap between the pin shaft sleeve 1 and the pin shaft through the lubricating grease layer coated on the inner annular wall of the bearing seat 4, dust and other dirt are prevented from invading into the pin shaft sleeve 1 through the gap between the pin shaft sleeve 1 and the pin shaft, normal deflection of the pin shaft is not affected, further sealing treatment is achieved on the gap between the pin shaft and the pin shaft sleeve 1 through the inner sealing ring 12 which is sleeved on the periphery of the pin shaft and clings to the outer wall of the pin shaft, and dust and tiny particle impurities can be effectively prevented from invading into the pin shaft sleeve 1, and abrasion caused by the invading foreign matters to the inner wall of the pin shaft sleeve 1 and the outer wall of the pin shaft is prevented.

It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other. The present application will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

The foregoing description is only of the preferred embodiments of the present application and is presented as a description of the principles of the technology being utilized. It will be appreciated by persons skilled in the art that the scope of the utility model referred to in this application is not limited to the specific combinations of features described above, but it is intended to cover other embodiments in which any combination of features described above or equivalents thereof is possible without departing from the spirit of the utility model. Such as the above-described features and technical features having similar functions (but not limited to) disclosed in the present application are replaced with each other.

Claims

1. The utility model provides a take sealing member structure round pin axle sleeve, includes round pin axle sleeve (1), its characterized in that: the novel sealing structure is characterized in that shaft grooves are formed in two ends of the pin shaft sleeve (1), sealing assemblies are arranged in each shaft groove, annular end cover plates (2) are connected to two ends of the pin shaft sleeve (1), one side, close to the end of the pin shaft sleeve (1), of each annular end cover plate (2) is connected with a density gasket (3), the sealing assemblies comprise bearing seats (4) which are matched with the inner diameter of each shaft groove in size, lubricating grease layers are coated on inner annular walls of the bearing seats (4), outer annular walls of the bearing seats (4) are connected with side walls of inner cavities of the shaft grooves, inner annular arms of the bearing seats (4) are connected with inner annular bodies (6), connecting mechanisms are arranged on the inner annular bodies (6), sealing grooves are formed in inner cavity rings of the inner annular bodies (6), and inner sealing rings (12) which are matched with the inner annular bodies are connected in the sealing grooves.

2. A pin bushing with seal structure according to claim 1, wherein: the outer annular wall of the bearing seat (4) is uniformly connected with a plurality of positioning side convex blocks (5), the side wall of the inner cavity of the shaft groove is provided with a limiting slot matched with each positioning side convex block (5) at the position corresponding to each positioning side convex block, and each positioning side convex block (5) is respectively and fixedly connected inside the corresponding limiting slot.

3. A pin bushing with seal structure according to claim 1, wherein: the inner diameter of the inner ring body (6) is consistent with the inner diameter of the pin shaft sleeve (1).

4. A pin bushing with seal structure according to claim 1, wherein: the inner diameter of the annular end cover plate (2) is consistent with the outer diameter of the inner connecting ring body (6), the outer diameter of the annular end cover plate (2) is consistent with the outer diameter of the pin shaft sleeve (1), and one end of the inner connecting ring body (6) far away from the pin shaft sleeve (1) penetrates through the inner cavity of the annular end cover plate (2).

5. A pin bushing with seal structure according to claim 1, wherein: the connecting mechanism comprises two propping tight seats (9) which are symmetrically arranged, the opposite surfaces of the propping tight seats (9) are respectively provided with a curved surface which can be attached to the outer wall of the inner ring body (6), fixing screws (10) are respectively inserted through the propping tight seats (9), the fixing screws (10) comprise screw rods and screw heads, cross grooves which are used for inserting screw driver heads and driving the fixing screws (10) to rotate are formed in the screw heads, one end of each screw head, which is close to the screw rod, is connected with an annular anti-slip sheet (11), and the annular anti-slip sheet (11) is annularly arranged on the periphery of the screw rod.

6. A pin bushing with seal structure according to claim 5, wherein: the inner ring body (6) is arranged between the two abutting seats (9), the curved surface on the abutting seats (9) is attached to the outer wall of the inner ring body (6), and one end of the screw, which is far away from the connected screw head, penetrates through the inner ring body (6) and stretches into the inner ring body (6).

7. A pin bushing with seal structure according to claim 6, wherein: the curved surface of the abutting seat (9) is connected with a guide sliding block (13), an insertion groove matched with the guide sliding block (13) is vertically formed in the position, corresponding to the guide sliding block, of the side wall of the inner ring body (6), and the guide sliding block (13) is movably inserted into the corresponding insertion groove.

8. A pin bushing with seal structure according to claim 1, wherein: the end part of the bearing seat (4) is flush with the end part of the pin shaft sleeve (1).