CN221273195U - Steering main pin structure convenient for assembly and after-sales maintenance - Google Patents
Steering main pin structure convenient for assembly and after-sales maintenance Download PDFInfo
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- CN221273195U CN221273195U CN202323232516.2U CN202323232516U CN221273195U CN 221273195 U CN221273195 U CN 221273195U CN 202323232516 U CN202323232516 U CN 202323232516U CN 221273195 U CN221273195 U CN 221273195U
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- steering
- main pin
- kingpin
- lever arm
- assembly
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- 238000012423 maintenance Methods 0.000 title claims abstract description 21
- 238000007789 sealing Methods 0.000 claims description 23
- 210000001503 joint Anatomy 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims 1
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract description 24
- 239000007788 liquid Substances 0.000 abstract description 12
- 229910052757 nitrogen Inorganic materials 0.000 abstract description 12
- 238000000034 method Methods 0.000 abstract description 6
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
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- Steering-Linkage Mechanisms And Four-Wheel Steering (AREA)
Abstract
The utility model discloses a steering main pin structure convenient for assembly and after-sales maintenance, which comprises main pin sleeves fixedly connected with axle housings, an upper main pin and a lower main pin respectively inserted into two ends of the main pin sleeves, a steering knuckle respectively matched with the upper main pin and the lower main pin in a sleeved mode, an upper transverse pull rod arm connected with the steering knuckle, and a lower transverse pull rod arm connected with the lower main pin, wherein the lower main pin is detachably connected with the lower transverse pull rod arm and the steering knuckle, and the upper main pin is detachably connected with the top of the main pin sleeve. The utility model realizes that the upper main pin, the lower main pin and the main pin sleeve are tightly pressed by bolts, liquid nitrogen is not used in the assembly process, the assembly process is simplified, the corresponding main pin is only needed to be replaced after sale, and the replacement cost is greatly reduced.
Description
Technical Field
The utility model belongs to the technical field of axles, and particularly relates to a steering main pin structure convenient to assemble and maintain after sale.
Background
All-terrain cranes typically have a chassis designed for multi-axle drive, all-wheel steering, i.e., each axle requires an attendant steering structure. Therefore, the design is simple and reliable, and the cost of assembly and after-sales maintenance is reduced as much as possible. After the main pin is cooled by liquid nitrogen in the non-driving axle or driving axle, the main pin is arranged in a main pin sleeve or a shaft head (usually welded at two ends of an axle housing), and then the upper steering arm compresses the shaft sleeve to measure and select a proper adjusting gasket to adjust the clearance of the main pin, so that the steering torque of the main pin is ensured, and the main pin is shown in the figure 1. The upper main pin and the lower main pin are pressed into the main pin sleeve or the shaft head after being cooled by liquid nitrogen, the liquid nitrogen cannot be stored for a long time, each batch of liquid nitrogen needs to be filled, certain danger exists in the process of using the liquid nitrogen, and errors cannot occur in the assembly process, otherwise, the main pin cannot be taken out once being pressed wrong, and therefore, the liquid nitrogen has extremely high requirements on operators. In the above assembly mode, when the master pin is worn or fails, the axle housing assembly must be replaced integrally, and the after-sale cost is high.
Disclosure of utility model
The utility model aims to solve the technical problems, and provides a steering kingpin structure which is convenient to assemble and maintain after sale, so that the upper kingpin, the lower kingpin and kingpin sleeve are tightly pressed by bolts, liquid nitrogen is not used in the assembling process, the assembling process is simplified, the corresponding kingpin is only needed to be replaced after sale, and the replacement cost is greatly reduced. In order to achieve the above purpose, the technical scheme of the utility model is as follows:
The utility model provides a steering main pin structure convenient to assembly and after-sales maintenance, includes the main pin sleeve pipe of fixed connection axle housing, the last king pin and the lower king pin of cartridge respectively in main pin sleeve pipe both ends, respectively with last king pin and lower king pin suit matched knuckle, connect the horizontal pull upper lever arm of knuckle and connect the horizontal pull lower lever arm of king pin down, lower king pin can dismantle connection horizontal pull lower lever arm and knuckle, go up the king pin and can dismantle connection king pin sheathed tube top.
Specifically, the knuckle includes connecting portion, sets up in the last steering gear of connecting portion top, sets up in the lower steering gear of connecting portion bottom, and the upper end cover of being connected with last steering gear can dismantle.
Specifically, the upper steering part is provided with a first semicircular opening, the upper end cover is provided with a second semicircular opening, and the first semicircular opening is in butt joint with the second semicircular opening to form an upper steering hole.
Specifically, the tip of lower kingpin is provided with lower flange portion, be provided with down the steering hole in the steering portion down, be provided with down the lever arm hole in the lever arm under the horizontal-pulling, lower kingpin runs through lever arm hole and lower steering hole setting down.
Specifically, the lower kingpin is correspondingly inserted and matched with the bottom end of the kingpin sleeve, and a lower bushing is arranged between the lower kingpin and the kingpin sleeve.
Specifically, be provided with the suit in the outside lower oil blanket subassembly of lower kingpin between kingpin sheathed tube bottom and the lower steering unit.
Specifically, the lower flange portion is arranged in an abutting mode with the transverse lower lever arm, and the circumference of the lower flange portion penetrates through the transverse lower lever arm through a plurality of first bolts to be connected to the lower steering portion.
Specifically, the middle part of going up the kingpin is provided with upper flange portion, the circumference of upper flange portion is connected to kingpin sheathed tube top through a plurality of second bolts.
Specifically, a shaft sleeve is arranged between the upper main pin and the upper steering hole, and an upper bushing and an upper oil seal which are positioned outside the upper main pin are arranged on the inner ring press-fitting of the shaft sleeve; an adjusting gasket sleeved outside the upper main pin is arranged between the upper flange part and the upper steering part.
Specifically, be provided with the upper boom arm hole in the upper boom arm of horizontal stay, run through in the upper boom arm hole and be provided with the hydro-cylinder seat of detachable connection king-pin, the lower part of hydro-cylinder seat is provided with the seal groove of holding sealing washer, through sealing washer sealing fit between hydro-cylinder seat and the upper boom arm hole.
Compared with the prior art, the steering main pin structure convenient for assembly and after-sales maintenance has the following main beneficial effects:
The upper main pin is provided with an upper flange part which is in clearance fit with the main pin sleeve and can be positioned in a detachable and pressing mode, the lower main pin penetrates through the transverse lower lever arm and the knuckle to be assembled to the main pin sleeve, the lower flange part is used for positioning in a detachable and pressing mode, the traditional mode that the upper main pin and the lower main pin are assembled into the main pin sleeve after being cooled by liquid nitrogen is eliminated, the assembly step is simplified, the assembly cost is reduced, and the assembly, the disassembly and the maintenance are convenient; the upper pin, the lower pin and the main pin sleeve are arranged in a split mode, and when the upper pin and the lower pin are replaced, the whole axle housing does not need to be replaced; the sealing ring is arranged in the sealing groove of the oil cylinder seat, so that the sealing ring is favorable for being inserted into an upper lever arm hole of the upper lever arm of the transverse pull, the assembly difficulty is reduced, the assembly damage of the sealing ring is reduced, and the later maintenance is more convenient.
Drawings
FIG. 1 is a schematic diagram of a prior art structure of the present utility model;
FIG. 2 is a schematic view of the structure of the steering knuckle in the present embodiment;
FIG. 3 is a schematic front view in cross section of the steering kingpin configuration of the present embodiment;
FIG. 4 is an enlarged view of a portion of the upper kingpin in this embodiment;
the figures represent the numbers:
The device comprises a1 axle housing, a 11 main pin sleeve, a 12 lower oil seal assembly, a2 upper main pin, a 21 upper flange part, a 22 second bolt, a 23 shaft sleeve, a 24 adjusting gasket, a 3 lower main pin, a 31 lower flange part, a 32 lower bushing, a 33 first bolt, a 4 steering knuckle, a 41 connecting part, a 42 upper steering part, a 43 lower steering part, a 44 upper end cover, a 45 upper steering hole, a 46 lower steering hole, a 5 transverse upper lever arm, a 51 upper lever arm hole, a 52 first mounting piece, a 6 transverse lower lever arm, a 61 lower lever arm hole, a 7 oil cylinder seat, a 71 positioning pin, a 72 second mounting piece and a 73 sealing ring.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely, but is apparent to those skilled in the art in view of the present utility model.
Examples:
Referring to fig. 1 to 4, the present embodiment is a steering main pin structure for easy assembly and after-sales maintenance, comprising a main pin sleeve 11 fixedly connected with a bridge shell 1, an upper main pin 2 and a lower main pin 3 respectively inserted and installed at both ends of the main pin sleeve 11, a knuckle 4 respectively sleeved and matched with the upper main pin 2 and the lower main pin 3, a tie-down upper lever arm 5 connected with the knuckle 4, and a tie-down lower lever arm 6 connected with the knuckle 4 and the lower main pin 3; the lower kingpin 3 is detachably connected to the bottom of the tie-down lever arm 6 and knuckle 4, and the upper kingpin 2 is detachably connected to the top of the kingpin bushing 11.
The knuckle 4 includes a connecting portion 41, an upper steering portion 42 provided at the top end of the connecting portion 41, a lower steering portion 43 provided at the bottom end of the connecting portion 41, and an upper end cap 44 detachably connected to the upper steering portion 42. The connecting portion 41 is integrally connected to the lower steering portion 43. The upper steering part 42 is provided with a first semicircular opening, the upper end cover 44 is provided with a second semicircular opening, the upper steering part 42 and the upper end cover 44 are spliced and arranged through bolts, the first semicircular opening and the second semicircular opening are in butt joint to form an upper steering hole 45, and the upper steering hole 45 is a round hole.
The lower main pin 3 has a lower flange 31 at its end, a lower steering hole 46 in the lower steering portion 43, and a lower lever arm hole 61 in the tie rod lower lever arm 6. The lower kingpin 3 is disposed through the lower lever arm hole 61 and the lower steering hole 46, the lower kingpin 3 is correspondingly inserted and engaged with the bottom end of the kingpin bushing 11, and a lower bushing 32 is disposed between the lower kingpin 3 and the kingpin bushing 11. A lower oil seal assembly 12 sleeved outside the lower main pin 3 is arranged between the bottom end of the main pin sleeve 11 and the lower steering part 43, and the lower oil seal assembly 12 comprises a lower main pin gasket, a lower oil seal, a protective cover and a thrust bearing gasket. Such that a seal is formed between the kingpin bushing 11 and the lower deflector 43. The lower flange part 31 is arranged in an abutting mode with the lower transverse pulling lever arm 6, the circumference of the lower flange part 31 penetrates through the lower transverse pulling lever arm 6 through a plurality of first bolts 33 to be connected to the lower steering part 43, so that the lower kingpin 3 is stably installed on the steering knuckle 4, liquid nitrogen cooling treatment is not required to be carried out on the lower kingpin 3, the lower kingpin 3 is in clearance plug fit with the kingpin sleeve 11, the lower end of the lower transverse pulling lever arm 6 is tightly pressed by the lower flange part 31 and the plurality of first bolts 33, and the assembly is more convenient.
The middle part of the upper main pin 2 is provided with an upper flange part 21, and the circumference of the upper flange part 21 is connected to the top end of the main pin sleeve 11 through a plurality of second bolts 22, so that the upper main pin 2 is stably arranged on the knuckle 4, liquid nitrogen cooling treatment is not required to be carried out on the upper main pin 2, and the upper main pin 2 is in clearance plug fit with the main pin sleeve 11.
A shaft sleeve 23 is arranged between the upper main pin 2 and the upper steering hole 45, and an upper bushing and an upper oil seal which are positioned outside the upper main pin 2 are arranged on the inner ring press fit of the shaft sleeve 23, so that a seal is formed between the upper main pin 2 and the upper steering part 42. An adjusting washer 24 fitted around the upper kingpin 2 is provided between the upper flange portion 21 and the upper steering portion 42.
An upper lever arm hole 51 is arranged in the transverse upper lever arm 5, and the upper lever arm hole 51 is arranged corresponding to the upper main pin 2. The tie rod arm 5 is disposed against the upper deflector 42, and the tie rod arm 5 is fixedly connected to the upper end cap 44 by a first mounting member 52. The tie rod arm 5 is stably positioned at the knuckle 4.
The upper lever arm hole 51 is internally penetrated and provided with an oil cylinder seat 7 which is detachably connected with the upper main pin 2, and the top end of the upper main pin 2 is provided with a positioning pin 71 matched with the oil cylinder seat 7. The top end of the upper kingpin 2 is fixedly connected with the cylinder base 7 through a second mounting member 72. The first mounting member 52 and the second mounting member 72 are bolts in this embodiment. The lower part of the oil cylinder seat 7 is provided with a sealing groove for accommodating a sealing ring 73, and the oil cylinder seat 7 is in sealing fit with the upper lever arm hole 51 through the sealing ring.
When the embodiment is applied, the assembly sequence of the whole structure is as follows, the lower main pin 3 penetrates through the transverse lower lever arm 6 and the lower steering part 43, and the lower flange part 31 of the lower main pin 3 is in compression connection with the steering knuckle 4 through a plurality of first bolts 33; the lower bushing 32 is installed into the lower end hole of the main pin sleeve 11, the upper main pin 2 is installed in the upper end hole of the main pin sleeve 11, and the upper flange part 21 of the upper main pin 2 is connected to the main pin sleeve 11 in a pressing manner through a plurality of second bolts 22; the steering knuckle 4 assembled with the lower kingpin 3 and the tie rod lower lever arm 6 is integrally hoisted to the position of the kingpin sleeve 11 by using a special tool, and the lower kingpin 3 is arranged at the bottom end of the kingpin sleeve 11; the adjusting gasket 24 is installed into the upper main pin 2, the shaft sleeve 23 with the upper bushing and the upper oil seal is pressed into the upper main pin 2, namely, the upper main pin is installed into an upper steering hole 45 formed by the upper end cover 44 locked to the upper steering part 42; installing the upper transverse lever arm 5 to the upper steering part 42, locking the first installation piece 52, measuring the adjustment clearance of the upper main pin 2 after assembly, and adjusting and replacing the adjustment gasket 24 if necessary; a sealing ring 73 is arranged in a sealing groove of the oil cylinder seat 7, and the position of the oil cylinder seat 7 where the sealing ring 73 is arranged in the upper lever arm hole 51 to lock the second mounting piece 72.
In the embodiment, the upper main pin 2 is provided with the upper flange part 21, the upper flange part 21 is in clearance fit with the main pin sleeve 11 and is positioned in a detachable pressing mode, the lower main pin 3 penetrates through the transverse lower lever arm 6 and the knuckle 4 to be assembled to the main pin sleeve 11, and is positioned in a detachable pressing mode by utilizing the lower flange part 31, so that the traditional mode that the upper main pin and the lower main pin are assembled into the main pin sleeve 11 after being cooled by utilizing liquid nitrogen is eliminated, the assembly steps are simplified, the assembly cost is reduced, and the assembly, the disassembly and the maintenance are facilitated; the upper pin, the lower pin and the main pin sleeve are arranged in a split mode, and the whole axle housing 1 does not need to be replaced when the upper pin and the lower pin are replaced; the sealing ring 73 is arranged in the sealing groove of the oil cylinder seat 7, so that the sealing ring is beneficial to being inserted into the upper lever arm hole 51 of the transverse pull upper lever arm 5, the assembly difficulty is reduced, the assembly damage of the sealing ring 73 is reduced, and the later maintenance is more convenient.
In the description of the present specification, the term "particular embodiment" or "a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Although the embodiments of the present utility model are described above, the embodiments are only used for facilitating understanding of the present utility model, and are not intended to limit the present utility model. Any person skilled in the art can make any modification and variation in form and detail without departing from the spirit and scope of the present disclosure, but the scope of the present disclosure is to be determined by the appended claims.
Claims (10)
1. Steering king pin structure convenient to assembly and after-sales maintenance, including the king pin sleeve pipe of fixed connection axle housing, the spliced arrangement respectively in last king pin and the lower king pin at king pin sleeve pipe both ends, respectively with last king pin and the knuckle of lower king pin suit matching, connect the lever arm on the crossbeam of knuckle and connect the lever arm under the crossbeam of king pin, its characterized in that: the lower kingpin is detachably connected with the lower transverse lever arm and the knuckle, and the upper kingpin is detachably connected with the top of the kingpin sleeve.
2. The steering kingpin arrangement of claim 1, wherein the steering kingpin arrangement is adapted for ease of assembly and after-market maintenance, and wherein: the knuckle comprises a connecting part, an upper steering part arranged at the top end of the connecting part, a lower steering part arranged at the bottom end of the connecting part, and an upper end cover detachably connected with the upper steering part.
3. The steering kingpin arrangement of claim 2, wherein the steering kingpin arrangement is adapted for ease of assembly and after-market maintenance, and wherein: the upper steering part is provided with a first semicircular opening, the upper end cover is provided with a second semicircular opening, and the first semicircular opening is in butt joint with the second semicircular opening to form an upper steering hole.
4. The steering kingpin arrangement of claim 2, wherein the steering kingpin arrangement is adapted for ease of assembly and after-market maintenance, and wherein: the end part of the lower main pin is provided with a lower flange part, a lower steering hole is arranged in the lower steering part, a lower lever arm hole is arranged in the transverse pull lower lever arm, and the lower main pin penetrates through the lower lever arm hole and the lower steering hole.
5. The steering kingpin arrangement of claim 1, wherein the steering kingpin arrangement is adapted for ease of assembly and after-market maintenance, and wherein: the lower main pin is correspondingly spliced and matched with the bottom end of the main pin sleeve, and a lower bushing is arranged between the lower main pin and the main pin sleeve.
6. The steering kingpin arrangement of claim 2, wherein the steering kingpin arrangement is adapted for ease of assembly and after-market maintenance, and wherein: and a lower oil seal assembly sleeved outside the lower main pin is arranged between the bottom end of the main pin sleeve and the lower steering part.
7. The steering kingpin arrangement of claim 4, wherein the steering kingpin arrangement is adapted for ease of assembly and after-market maintenance, and wherein: the lower flange part is arranged in an abutting mode with the transverse lower lever arm, and the circumference of the lower flange part penetrates through the transverse lower lever arm through a plurality of first bolts to be connected to the lower steering part.
8. The steering kingpin arrangement of claim 2, wherein the steering kingpin arrangement is adapted for ease of assembly and after-market maintenance, and wherein: the middle part of going up the kingpin is provided with upper flange portion, the circumference of upper flange portion is connected to kingpin sleeve's top through a plurality of second bolts.
9. The steering kingpin arrangement of claim 8, wherein the steering kingpin arrangement is adapted for ease of assembly and after-market maintenance, and wherein: a shaft sleeve is arranged between the upper main pin and the upper steering hole, and an upper bushing and an upper oil seal which are positioned outside the upper main pin are arranged on the inner ring of the shaft sleeve in a pressing manner; an adjusting gasket sleeved outside the upper main pin is arranged between the upper flange part and the upper steering part.
10. The steering kingpin arrangement of claim 1, wherein the steering kingpin arrangement is adapted for ease of assembly and after-market maintenance, and wherein: the upper lever arm of the transverse pull is internally provided with an upper lever arm hole, an oil cylinder seat which can be detachably connected with an upper main pin is arranged in the upper lever arm hole in a penetrating mode, the lower portion of the oil cylinder seat is provided with a sealing groove for accommodating a sealing ring, and the oil cylinder seat is in sealing fit with the upper lever arm hole through the sealing ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323232516.2U CN221273195U (en) | 2023-11-29 | 2023-11-29 | Steering main pin structure convenient for assembly and after-sales maintenance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323232516.2U CN221273195U (en) | 2023-11-29 | 2023-11-29 | Steering main pin structure convenient for assembly and after-sales maintenance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221273195U true CN221273195U (en) | 2024-07-05 |
Family
ID=91692432
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323232516.2U Active CN221273195U (en) | 2023-11-29 | 2023-11-29 | Steering main pin structure convenient for assembly and after-sales maintenance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221273195U (en) |
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2023
- 2023-11-29 CN CN202323232516.2U patent/CN221273195U/en active Active
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