CN211280545U - Rear auxiliary spring with good safety - Google Patents
Rear auxiliary spring with good safety Download PDFInfo
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- CN211280545U CN211280545U CN201922450264.8U CN201922450264U CN211280545U CN 211280545 U CN211280545 U CN 211280545U CN 201922450264 U CN201922450264 U CN 201922450264U CN 211280545 U CN211280545 U CN 211280545U
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- connecting plate
- deformation
- buffer body
- bolt
- auxiliary spring
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Abstract
The utility model relates to a technical field of automobile parts especially relates to a back auxiliary spring that security is good, and it includes back auxiliary spring assembly, and back auxiliary spring assembly has seted up the bolt hole including buffering body and connecting plate on the connecting plate, wears to be equipped with fixing bolt in the bolt hole, sets up the bolt groove corresponding with fixing bolt on the buffering body, and the buffering body is connected with the connecting plate through vulcanization technology. The utility model discloses it is good to have the bolt parcel nature, and the bolt is difficult for droing, the good effect of security.
Description
Technical Field
The utility model belongs to the technical field of automobile parts's technique and specifically relates to a back auxiliary spring that security is good is related to.
Background
Heavy commercial vehicle self weight is great and the road conditions of going are comparatively complicated, so it can jolt through the circumstances such as the bumpy road surface in the road surface driving process, because the big keeping away from of its weight, jolt and can cause the automobile body to beat from top to bottom. Particularly, the rear axle has large jumping amplitude, and the problems of direct contact between the rear axle and a frame, shaking, noise and the like are easily caused under the limit condition. To improve the situation, a rear auxiliary spring is used to cushion the rear axle. The rear auxiliary spring is positioned between the frame and the rear axle, can bear and transmit vertical load, is used for buffering, inhibiting impact from a road surface, limiting the jumping quantity of the rear axle and preventing direct impact between metals, and plays a certain role in protecting a plate spring of a vehicle body.
The Chinese utility model patent with the publication number of CN207875329U discloses a novel rear overhang buffer block assembly, which comprises a buffer block assembly, wherein the buffer block assembly comprises a metal bottom plate and a rubber block, the metal bottom plate comprises a middle lower concave part and horizontal connection wing plates which are arranged at two ends of the middle lower concave part in an extending way, the horizontal connection wing plates are connected with a frame mounting bracket through bolts which are arranged in bolt holes in a penetrating way, and the bolt holes comprise round holes arranged on one horizontal connection wing plate and long holes arranged along the direction of a long shaft on the other horizontal connection wing plate; the rubber block is adhered to the lower surface of the middle lower concave part through a vulcanization process, a through hole parallel to the rear axle pipe is formed in the middle of the rubber block, and the bottom of the rubber block is of a cambered surface structure connected with the rear axle pipe.
The above prior art solutions have the following drawbacks: the metal bottom plate is connected with the frame mounting bracket through exposed bolts, and the exposed bolts are easy to age or fall off due to vibration, so that the safety is poor.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art exists, one of the purposes of the utility model is to provide a back auxiliary spring that security is good, it is good to bolt parcel nature to have, and the bolt is difficult for droing, the good effect of security.
The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:
the rear auxiliary spring with good safety comprises a rear auxiliary spring assembly, wherein the rear auxiliary spring assembly comprises a buffer body and a connecting plate, a bolt hole is formed in the connecting plate, a fixing bolt penetrates through the bolt hole, a bolt groove corresponding to the fixing bolt is formed in the buffer body, and the buffer body is connected with the connecting plate through a vulcanization process.
Through adopting above-mentioned technical scheme, fixing bolt wears to establish earlier on the connecting plate, then will cushion the body and place the connecting plate on contradict with the connecting plate, offer the bolt groove corresponding with fixing bolt on the buffering body simultaneously, the buffering body is placed the back fixing bolt upper end and is fallen into the bolt groove like this, and the bolt is wrapped up in wherein by the buffering body and is formed the protection, is difficult to ageing or because vibrations and drop, and the security is good.
The present invention may be further configured in a preferred embodiment as: the connecting plate is provided with a T-shaped positioning pin in a penetrating mode, and the positioning pin and the fixing bolt are arranged on the same horizontal line.
Through adopting above-mentioned technical scheme, the locating pin is used for the installation location of connecting plate and automobile body installing support, also can play the positioning action when placing the buffering body simultaneously.
The present invention may be further configured in a preferred embodiment as: the buffer body is provided with rhombic deformation holes, and two sides of the buffer body are provided with V-shaped deformation grooves.
Through adopting above-mentioned technical scheme, when bearing load, thereby deformation hole and deformation recess can take place deformation production compression, absorb load through deformation, avoid the beat of wheel directly to cause the impact to the automobile body.
The present invention may be further configured in a preferred embodiment as: the deformation holes are arranged in two and vertically.
Through adopting above-mentioned technical scheme, the bearing load that two deformation holes of vertical arranging can be better strengthens the buffering effect of the buffering body.
The present invention may be further configured in a preferred embodiment as: the inner cavity of the deformation hole close to one end of the connecting plate is larger than the inner cavity of the connecting hole far away from one end of the connecting plate.
Through adopting above-mentioned technical scheme, the deformation hole inner chamber that is close to connecting plate one end is great, can produce great deformation volume, plays the buffering guard action to the connecting plate, and the raw materials quantity of buffer board can be practiced thrift to the inner chamber in deformation hole simultaneously.
The present invention may be further configured in a preferred embodiment as: the deformation groove is arranged between the deformation holes.
Through adopting above-mentioned technical scheme, the deformation recess sets up between the deformation is empty, forms and sets up in turn, and the deformation recess also can produce deformation when bearing load, and the deformation recess further strengthens buffering effect with the hole combined action that deforms.
The present invention may be further configured in a preferred embodiment as: be provided with the ascending spacing diaphragm of horizontal direction in the buffering body, buffering body bottom surface is equipped with mated spacing riser along vertical direction.
Through adopting above-mentioned technical scheme, when the buffering body reachd the deformation limit, conflict can take place for spacing diaphragm and spacing riser to the deformation of restriction buffering body avoids the excessive automobile body that causes of deformation to bump with the rear axle.
The present invention may be further configured in a preferred embodiment as: one end of the buffer body, which is far away from the connecting plate, is provided with a sunken arc surface.
Through adopting above-mentioned technical scheme, the area of contact that can let buffer body and automobile body rear axle pipe increases, better plays the guard action to the rear axle pipe in the setting of arc surface.
To sum up, the utility model discloses a following at least one useful technological effect:
1. through wearing to establish fixing bolt in the connecting plate, offer the bolt groove on the buffering body simultaneously, the buffering body can be with fixing bolt parcel in after placing, plays protection and limiting displacement to fixing bolt. The fixing bolt is not easy to fall off due to aging or vibration, and the safety is good;
2. through the arrangement of the T-shaped positioning pin, the positioning pin plays a role in positioning the connection between the connecting plate and the vehicle body mounting bracket on one hand, and plays a role in limiting the placement of the buffer body on the other hand, so that the mounting of the rear auxiliary spring is more accurate and convenient;
3. through the setting of spacing diaphragm and spacing riser, avoid the buffering body to continue deformation when the deformation limit, when the protection automobile body leaf spring, the prevention automobile body bumps with the rear axle.
Drawings
FIG. 1 is a schematic structural view of a rear auxiliary spring according to the first embodiment;
FIG. 2 is a schematic cross-sectional view of the rear auxiliary spring according to the first embodiment;
fig. 3 is a partially enlarged schematic view of a portion a of fig. 2.
FIG. 4 is a schematic cross-sectional view of the rear auxiliary spring according to the second embodiment;
in the figure, 1, a rear auxiliary spring assembly; 2. a buffer body; 3. a connecting plate; 4. chamfering; 5. a deformation hole; 6. a deformation groove; 7. bolt holes; 8. a pin hole; 9. fixing the bolt; 10. positioning pins; 11. a bolt slot; 12. a pin slot; 13. a circular arc surface; 14. a transverse limiting plate; 15. and a limiting vertical plate.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Example one
Referring to fig. 1, for the utility model discloses a back auxiliary spring that security is good, including back auxiliary spring assembly 1, thereby back auxiliary spring assembly 1 is used for bearing load and takes place deformation and produce cushioning effect including the buffering body 2 and connecting plate 3, buffering body 2, and connecting plate 3 is used for being connected back auxiliary spring and frame installing support, and the buffering body 2 is linked together through vulcanization technology with connecting plate 3 bonding.
Referring to fig. 1 and 2, the buffer body 2 is made of polyurethane, and the polyurethane has high strength, wear resistance, oil resistance and good shock absorption performance, and is very suitable for the buffer body 2. The structure of the buffer body 2 is 8-shaped, the front and back end faces of the buffer body 2 and the side faces of the two sides are both arranged to be inclined planes slightly inclined, a certain drawing angle is formed, one end of each inclined plane close to the connecting plate 3 is higher than the other end of each inclined plane, and the buffer body 2 is more stable due to the arrangement of the inclined planes. The handing-over position of the terminal surface of buffer 2 and side sets up to chamfer 4, and chamfer 4 can prevent stress concentration, avoids the load to cause the damage to buffer 2.
Referring to fig. 1 and 2, the end face of the buffer body 2 is provided with two rhombic deformation holes 5 penetrating to the back face, and the inner cavities of the two deformation holes 5 close to one end of the connecting plate 3 are larger than the inner cavity of the other deformation hole 5. When the load is applied, the deformation hole 5 is pressed, and the entire cushion body 2 is compressed, thereby performing a cushioning effect.
Referring to fig. 1 and 2, V-shaped deformation grooves 6 are formed in two sides of the buffer body 2, and the deformation grooves 6 are disposed in the middle of the two deformation holes 5. The setting of deformation recess 6 is for when buffer 2 bears load, 6 positions of deformation recess produce the extrusion and take place deformation, also can play and alleviate the impact, slow down the effect of vibrations.
Referring to fig. 2 and 3, the rear auxiliary spring is connected with the frame mounting bracket by forming a bolt hole 7 at a position close to the center of the connecting plate 3, and simultaneously forming a pin hole 8 on the same horizontal line of the position where the bolt hole 7 is formed, a fixing bolt 9 is arranged at the position of the bolt hole 7, a T-shaped positioning pin 10 is arranged at the position of the pin hole 8, and the end of the positioning pin 10 close to the buffer body 2 is a square end. The positioning pin 10 is used for positioning with the frame mounting bracket, and the fixing bolt 9 connects the connecting plate 3 with the frame mounting bracket.
Referring to fig. 2 and 3, the buffer body 2 is provided with a bolt slot 11 adapted to the fixing bolt 9 and a square pin slot 12 adapted to the positioning pin 10. When carrying out the adhesion with buffer 2 and connecting plate 3, align bolt groove 11 and keyway 12 with the tip of 9 ends of fixing bolt and locating pin 10, then carry out the adhesion, can wrap up fixing bolt 9 and locating pin 10 inside buffer 2, form the protection to fixing bolt 9 bolt, avoid exposing and cause ageing and drop.
The implementation principle of the embodiment is as follows: fixing bolt 9 and locating pin 10 wear to establish respectively in bolt hole 7 and pinhole 8, aligns and places the bolt groove 11 and the keyway 12 of seting up on the buffer 2 and the tip of fixing bolt 9 and the tip of locating pin 10, and buffer 2 contradicts with connecting plate 3, uses vulcanization process to adhere buffer 2 and connecting plate 3 together, wraps up fixing bolt 9 wherein simultaneously, protects fixing bolt 9.
The fixing bolt 9 and the positioning pin 10 are aligned with and inserted into the through hole and the pin hole 8 on the frame mounting bracket, and the connecting plate 3 is connected with the vehicle body mounting bracket.
Example two
The difference between the present embodiment and the first embodiment is the structure of the buffer body 2.
Referring to fig. 4, one end of the buffer body 2 away from the connecting plate 3 is provided with a concave arc surface 13 so as to increase the contact area between the buffer body 2 and the rear axle tube. When the buffer body 2 is contacted with the rear axle tube, the rear axle tube just falls into the arc surface 13, and the contact area is increased.
Referring to fig. 4, two sides of the buffer body 2 are provided with a horizontal through groove between the two deformation holes 5, and a limit transverse plate 14 in interference fit with the through groove is inserted into the through groove. And meanwhile, two slots in the vertical direction are formed in the bottom surface, connected with the connecting plate 3, of the buffer body 2, and a limiting vertical plate 15 in interference fit with the slots is inserted into the slots. Spacing diaphragm 14 can conflict with spacing riser 15 when deformation reaches the limit, avoids buffer 2 deformation excessively.
The implementation principle of the embodiment is as follows:
after the buffer body 2 receives the load, deformation hole 5 takes place deformation with deformation recess 6, and buffer body 2 compresses along vertical direction, and the height step-down, in compression process, the distance between spacing diaphragm 14 and the spacing riser 15 is more and more littleer. When the buffer body 2 reaches the limit of approaching deformation, the limit transverse plate 14 is abutted against the limit vertical plate 15, and the buffer body 2 cannot deform any more, so that the collision between the frame and the rear axle caused by excessive deformation of the buffer body 2 is avoided.
The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.
Claims (8)
1. The utility model provides a back auxiliary spring that security is good, includes back auxiliary spring assembly (1), back auxiliary spring assembly (1) is including buffer body (2) and connecting plate (3), its characterized in that: the connecting plate is characterized in that a bolt hole (7) is formed in the connecting plate (3), a fixing bolt (9) penetrates through the bolt hole (7), a bolt groove (11) corresponding to the fixing bolt (9) is formed in the buffer body (2), and the buffer body (2) is connected with the connecting plate (3) through a vulcanization process.
2. A highly secure rear sub-spring as claimed in claim 1, wherein: the connecting plate (3) is provided with a T-shaped positioning pin (10) in a penetrating mode, a pin groove (12) matched with the end portion of the positioning pin (10) is formed in the buffering body (2), and the positioning pin (10) and the fixing bolt (9) are arranged on the same horizontal line.
3. A highly secure rear sub-spring as claimed in claim 1, wherein: the buffer body (2) is provided with rhombic deformation holes (5), and two sides of the buffer body (2) are provided with V-shaped deformation grooves (6).
4. A highly secure rear sub-spring as claimed in claim 3, wherein: the deformation holes (5) are arranged in two and vertically.
5. A safe rear auxiliary spring according to claim 4, wherein: the inner cavity of the deformation hole (5) close to one end of the connecting plate (3) is larger than the inner cavity of the connecting hole far away from one end of the connecting plate (3).
6. A safe rear auxiliary spring according to claim 4, wherein: the deformation grooves (6) are arranged between the deformation holes (5).
7. A highly secure rear sub-spring as claimed in claim 1, wherein: be provided with spacing diaphragm (14) on the horizontal direction in the buffer body (2), buffer body (2) bottom surface is equipped with mated spacing riser (15) along vertical direction.
8. A highly secure rear sub-spring as claimed in claim 1, wherein: one end of the buffer body (2) far away from the connecting plate (3) is provided with a sunken arc surface (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922450264.8U CN211280545U (en) | 2019-12-30 | 2019-12-30 | Rear auxiliary spring with good safety |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922450264.8U CN211280545U (en) | 2019-12-30 | 2019-12-30 | Rear auxiliary spring with good safety |
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| Publication Number | Publication Date |
|---|---|
| CN211280545U true CN211280545U (en) | 2020-08-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922450264.8U Active CN211280545U (en) | 2019-12-30 | 2019-12-30 | Rear auxiliary spring with good safety |
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| CN (1) | CN211280545U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022147640A1 (en) * | 2021-01-05 | 2022-07-14 | 德沃康科技集团有限公司 | Low-noise power device, noise reduction mechanism, and noise reduction method |
-
2019
- 2019-12-30 CN CN201922450264.8U patent/CN211280545U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022147640A1 (en) * | 2021-01-05 | 2022-07-14 | 德沃康科技集团有限公司 | Low-noise power device, noise reduction mechanism, and noise reduction method |
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