CN204175942U - Ball-joint formula is card variable-speed manipulator assembly heavily - Google Patents
Ball-joint formula is card variable-speed manipulator assembly heavily Download PDFInfo
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- CN204175942U CN204175942U CN201420627817.7U CN201420627817U CN204175942U CN 204175942 U CN204175942 U CN 204175942U CN 201420627817 U CN201420627817 U CN 201420627817U CN 204175942 U CN204175942 U CN 204175942U
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Abstract
The utility model discloses one heavily card variable-speed manipulator assembly, particularly a kind of ball-joint formula heavily card variable-speed manipulator assembly, comprise U-shaped fork and cross Fang Xin, the upper end portion of described cross Fang Xin extends between a pair yoke to U-shaped fork, and be provided with the first horizontal through hole in the upper end portion of this cross Fang Xin, at this to yoke being arranged with two second horizontal through hole corresponding with above-mentioned first horizontal through hole, in described each second horizontal through hole, all lining is connected to plastic bushing, this each plastic bushing is formed with inner ball surface, above-mentioned cross Fang Xin and U-shaped fork are fixed by two ball studs, the pin member of described two ball studs is all plugged in the first horizontal through hole, its bulb part all extends into in corresponding plastic bushing, and with the inner ball surface Spielpassung of plastic bushing.Which solve the technical problem promoting heavily card variable-speed manipulator joint bearing strength, be conducive to extending its actual life.
Description
Technical field
The utility model relates to one heavily card variable-speed manipulator assembly, particularly a kind of ball-joint formula heavily card variable-speed manipulator assembly.
Background technique
Heavily card variable-speed manipulator assembly is the control system for truck, engineering truck, converts gear thus the effect obtaining the different speed of a motor vehicle by connecting to play from flexible axle.
As shown in Figure 1, existing heavy card variable-speed manipulator is primarily of bracket component 1, U-shaped fork 2, cross side's core 3 and swing arm unit 4 four major part composition, wherein the upper end portion grafting of swing arm unit 4 enters the underpart of cross side's core 3, and by an elastic cylindrical pin 5, both are fixed, the upper end portion of above-mentioned cross side core 3 extends between a pair yoke 2-1 to U-shaped fork 2, the first through hole 6 is also offered in the upper end portion of above-mentioned cross side core 3, on a pair yoke 2-1 of U-shaped fork 2, symmetry offers two second through holes 7 corresponding with above-mentioned first through hole 6, in each second through hole 7, all lining has established anti abrasive copper sheathing 8, above-mentioned cross side's core 3 and both U-shaped forks 2 run through corresponding copper sheathing 8 respectively by two and the straight pin 9 extended into the first through hole 6 is fixed.Above-mentioned heavily card variable-speed manipulator is due to structural design defect, there is following obviously technical problem in it: first, the radial load that can bear is too small, only in the scope of 1000N, copper sheathing 8 just can not be out of shape, and can normally use, when bearing load is excessive, copper sheathing 8 can deform, and causes wearing and tearing aggravation and makes product failure; Secondly, in said structure, the exterior edge face sealing of copper sheathing 8 is poor, and its pivot pin joint easily makes the fouls such as silt enter, and aggravates the wearing and tearing of copper sheathing 8 and straight pin and makes product failure.Therefore, be necessary to carry out further technological improvement.
Model utility content
The purpose of this utility model provides a kind of ball-joint formula heavily card variable-speed manipulator assembly to solve above-mentioned the deficiencies in the prior art.
To achieve these goals, a kind of ball-joint formula heavily card variable-speed manipulator assembly designed by the utility model, comprise U-shaped fork and cross Fang Xin, the upper end portion of described cross Fang Xin extends between a pair yoke to U-shaped fork, and be provided with the first horizontal through hole in the upper end portion of this cross Fang Xin, at this to yoke being arranged with two second horizontal through hole corresponding with above-mentioned first horizontal through hole, in described each second horizontal through hole, all lining is connected to plastic bushing, this each plastic bushing is formed with inner ball surface, above-mentioned cross Fang Xin and U-shaped fork are fixed by two ball studs, the pin member of described two ball studs is all plugged in the first horizontal through hole, its bulb part all extends into in corresponding plastic bushing, and with the inner ball surface Spielpassung of plastic bushing.
The preferred apparatus of material of above-mentioned plastic bushing has nontoxic, light weight, excellent mechanical strength, wear resistance and nylon material preferably.
Above-mentioned a kind of ball-joint formula heavily card variable-speed manipulator assembly, in its structure, ball stud matches with plastic bushing two parts thus constitutes the ball-joint that U-shaped fork is connected with cross Fang Xin between the two.Above-mentioned ball-joint is compared traditional pin, and its radial area of contact is larger, therefore bearing load also comparatively large (when plastic bushing selects nylon material, maximum 3KN and the nylon lining of bearing is without yield deformation).
Radial direction can locate accurately in the second horizontal through hole to realize plastic bushing, the outer ring of above-mentioned two plastic bushings is equipped with spacing back-up ring, and the back-up ring of each spacing back-up ring connects along all keeping off mutually with the internal surface of corresponding yoke.
In order to effectively prevent the fouls such as silt from entering above-mentioned ball-joint, realize effectively dust-proof object, thus reduce the heel and toe wear coefficient of ball-joint, in two above-mentioned the second horizontal through hole, all sealing plug is connected to a dust seal, and each dust seal is all positioned at the outside of the plastic bushing of same second horizontal through hole.
Preferred as one, the external port of above-mentioned two plastic bushings is reducing, and the longitudinal section of described two dust seals is " Contraband " shape, and the opening of this each dust seal is engaged on the reducing outer edge surface of corresponding plastic bushing.In this preferred version, the sealing and dustproof performance of ball-joint is good.
The ball-joint formula of said structure heavily card variable-speed manipulator assembly has accomplished the stability of product from root, being attached to by above-mentioned variable-speed manipulator assembly on automobile carries out in actual use, when automobile is at the road traveling that environment is poor, traditional variable-speed manipulator assembly of comparing generally can improve 30% its working life.
Accompanying drawing explanation
Fig. 1 is the structural representation of existing heavy card variable-speed manipulator assembly;
Fig. 2 be embodiment 1 the structural representation of the heavy card variable-speed manipulator assembly of a kind of ball-joint formula is provided;
Fig. 3 is the close-up schematic view at A place in Fig. 2;
Fig. 4 be embodiment 2 the partial enlargement structural representation of the heavy card variable-speed manipulator assembly of a kind of ball-joint formula is provided;
Fig. 5 be embodiment 3 the partial enlargement structural representation of the heavy card variable-speed manipulator assembly of a kind of ball-joint formula is provided.
In figure: along 15-1, dust seal 16, opening 16-1 on bracket component 1, U-shaped fork 2, yoke 2-1, cross side's core 3, swing arm unit 4, elastic cylindrical pin 5, first through hole 6, second through hole 7, copper sheathing 8, straight pin 9, first horizontal through hole 10, second horizontal through hole 11, nylon lining 12, reducing 12-1, inner ball surface 13, ball stud 14, pin member 14-1, bulb part 14-2, spacing back-up ring 15, back-up ring.
Embodiment
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Embodiment 1:
As shown in Figures 2 and 3, a kind of ball-joint formula heavily card variable-speed manipulator assembly provided in the present embodiment, comprise bracket component 1, U-shaped fork 2, cross side's core 3 and swing arm unit 4 four major part composition, the upper end portion grafting of wherein said swing arm unit 4 enters the underpart of cross side's core 3, and by an elastic cylindrical pin 5, both are fixed, the upper end portion of described cross side core 3 extends between a pair yoke 2-1 to U-shaped fork 2, and the first horizontal through hole 10 is provided with in the upper end portion of this cross side's core 3, at this to yoke 2-1 being arranged with two second horizontal through hole 11 corresponding with above-mentioned first horizontal through hole 10, in described each second horizontal through hole 11, all lining is connected to nylon lining 12, this each nylon lining 12 is formed with inner ball surface 13, above-mentioned cross side's core 3 is fixed by two ball studs 14 with both U-shaped forks 2, the pin member 14-1 of described two ball studs 14 is all plugged in the first horizontal through hole 10, its bulb part 14-2 all extends into in corresponding nylon lining 12, and with inner ball surface 13 Spielpassung of nylon lining 12.
In actual use, above-mentioned middle nylon lining 12 also can select other nylon linings 12 that are wear-resistant and high strength to replace, such as selects the lining of polymethylmethacrylate material to replace above-mentioned nylon lining 12.
Embodiment 2:
A kind of ball-joint formula heavily card variable-speed manipulator assembly provided in the present embodiment, its general structure is consistent with embodiment 1, but radial direction can locate accurately in the second horizontal through hole 11 to realize nylon lining 12, as shown in Figure 4, the outer ring of two nylon linings 12 in the present embodiment is equipped with spacing back-up ring 15, and the back-up ring of each spacing back-up ring 15 all keeps off with the internal surface of corresponding yoke 2-1 mutually along 15-1 connects.
Embodiment 3:
A kind of ball-joint formula heavily card variable-speed manipulator assembly provided in the present embodiment, its general structure is consistent with embodiment 2, but in order to effectively prevent the fouls such as silt from entering above-mentioned ball-joint, realize effectively dust-proof object, thus reduce the heel and toe wear coefficient of ball-joint, as shown in Figure 5, in two the second horizontal through hole 11 in the present embodiment, all sealing plug is connected to a dust seal 16, and each dust seal 16 is all positioned at the outside of the nylon lining 12 of same second horizontal through hole 11.
The external port of above-mentioned two nylon linings 12 is reducing 12-1, and the longitudinal section of described two dust seals 16 is " Contraband " shape, and the opening 16-1 of this each dust seal 16 is engaged on the reducing 12-1 outer edge surface of corresponding nylon lining 12.
Claims (4)
1. a ball-joint formula heavily card variable-speed manipulator assembly, comprise U-shaped fork (2) and cross Fang Xin (3), the upper end portion of described cross Fang Xin (3) extends between a pair yoke (2-1) to U-shaped fork (2), and be provided with the first horizontal through hole (10) in the upper end portion of this cross Fang Xin (3), at this to yoke (2-1) being arranged with two second horizontal through hole (11) corresponding with above-mentioned first horizontal through hole (10), it is characterized in that all lining is connected to plastic bushing in described each second horizontal through hole (11), this each plastic bushing is formed with inner ball surface (13), above-mentioned cross Fang Xin (3) is fixed by two ball studs (14) with both U-shaped fork (2), the pin member (14-1) of described two ball studs (14) is all plugged in the first horizontal through hole (10), its bulb part (14-2) all extends into in corresponding plastic bushing, and with inner ball surface (13) Spielpassung of plastic bushing.
2. a kind of ball-joint formula according to claim 1 heavily card variable-speed manipulator assembly, the outer ring that it is characterized in that described two plastic bushings is equipped with spacing back-up ring (15), and the back-up ring of each spacing back-up ring (15) all keeps off with the internal surface of corresponding yoke (2-1) mutually along (15-1) connects.
3. a kind of ball-joint formula according to claim 1 and 2 heavily card variable-speed manipulator assembly, it is characterized in that in two described the second horizontal through hole (11), all plug is connected to a dust seal (16), and each dust seal (16) is all positioned at the outside of the plastic bushing of same second horizontal through hole (11).
4. a kind of ball-joint formula according to claim 3 heavily card variable-speed manipulator assembly, it is characterized in that the external port of described two plastic bushings is reducing (12-1), the longitudinal section of described two dust seals (16) is " Contraband " shape, and the opening (16-1) of this each dust seal (16) is engaged on reducing (12-1) outer edge surface of corresponding plastic bushing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420627817.7U CN204175942U (en) | 2014-10-28 | 2014-10-28 | Ball-joint formula is card variable-speed manipulator assembly heavily |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420627817.7U CN204175942U (en) | 2014-10-28 | 2014-10-28 | Ball-joint formula is card variable-speed manipulator assembly heavily |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204175942U true CN204175942U (en) | 2015-02-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420627817.7U Active CN204175942U (en) | 2014-10-28 | 2014-10-28 | Ball-joint formula is card variable-speed manipulator assembly heavily |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204175942U (en) |
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2014
- 2014-10-28 CN CN201420627817.7U patent/CN204175942U/en active Active
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