CN211223646U - Device for connecting body and underframe of pure electric city bus - Google Patents
Device for connecting body and underframe of pure electric city bus Download PDFInfo
- Publication number
- CN211223646U CN211223646U CN201922497647.0U CN201922497647U CN211223646U CN 211223646 U CN211223646 U CN 211223646U CN 201922497647 U CN201922497647 U CN 201922497647U CN 211223646 U CN211223646 U CN 211223646U
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- Prior art keywords
- baffle
- fixedly connected
- rod
- nail cover
- underframe
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 230000003014 reinforcing effect Effects 0.000 claims description 6
- 230000002349 favourable effect Effects 0.000 abstract description 3
- 238000001125 extrusion Methods 0.000 abstract description 2
- 238000005457 optimization Methods 0.000 description 6
- 229910000838 Al alloy Inorganic materials 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 238000004458 analytical method Methods 0.000 description 3
- 238000009826 distribution Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
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Abstract
The utility model discloses a device that is used for electricelectric to move city passenger train automobile body and chassis to be connected, including screwhead, connecting rod, first screw thread, first dead lever, baffle, bracing piece, spliced pole, second screw thread, second dead lever, nail cover and shackle. The utility model has the advantages that: through the outer wall fixed connection baffle of first dead lever, the nail cover is cup jointed to the second dead lever, the inner wall fixed connection shackle of nail cover, and make the shackle on the nail cover by baffle card post in the removal, and when the nail cover continues to remove to the direction of screwhead, the baffle is being driven the kickup by the shackle, then make the baffle keep off the bottom at the nail cover, and utilize pneumatic annular riveter taut with the bracing piece, until the junction fracture of bracing piece and first dead lever, and when extrusion baffle, the baffle is more inseparable with the bottom of nail cover, thereby make the baffle keep off the nail cover, prevent to become flexible between automobile body and the chassis, thereby be favorable to better fixed between automobile body and the chassis.
Description
Technical Field
The utility model relates to a connecting device specifically is a device that is used for pure electric city passenger train automobile body and chassis to be connected, belongs to automotive technical field.
Background
Traditional passenger train automobile body skeleton mainly adopts steel material, and is less to the application of novel material on passenger train skeleton, along with the progress of technique, the proportion increases day by day on passenger train automobile body skeleton makes of aluminum alloy. Compared with steel materials, the pan alloy has larger lightweight potential, but the application of the aluminum alloy in the manufacture of finished cars is still limited by the problems of high wood manufacturing cost, high molding process requirement, complex connecting process requirement and the like. Through reasonable optimization design of a passenger car body, the mass of the passenger car body can be reduced by more than one third on the premise of ensuring that an aluminum alloy car body structure and a steel car body structure have the same rigidity and strength. Along with the development of the light-weight technology of the passenger car, the application of the aluminum alloy on the body of the passenger car is more and more extensive, and the aluminum alloy becomes the first choice material for light-weight of the passenger car.
However, the conventional passenger car body and the conventional passenger car underframe are riveted by bolts, so that the bolts are easily loosened when the passenger car runs, particularly when the passenger car runs on a bumpy road surface and the passenger car body and the passenger car underframe vibrate.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a device that is used for pure electric city passenger train automobile body and chassis to be connected in order to solve above-mentioned problem, fixing the in-process on the screw with the nail cover, can make the bottom of screw appear the baffle, further prevent that the nail cover breaks away from the screw to be favorable to making the better fixed of nail cover and screw, prevent that automobile body and chassis are not hard up.
The utility model discloses a following technical scheme realizes above-mentioned purpose, a device that is used for electricelectric moves city passenger train automobile body and chassis to be connected, including the screwhead, screwhead fixed connection connecting rod, the connecting rod deviates from the first dead lever of one end fixed connection of screwhead, be equipped with first screw thread on the first dead lever, first dead lever fixed connection bracing piece, the outer wall fixed connection baffle of first dead lever, the bracing piece deviates from the one end fixed connection spliced pole of first dead lever, spliced pole fixed connection second dead lever, the lateral wall of second dead lever is equipped with the second screw thread, the nail cover is cup jointed to the second dead lever, the inner wall fixed connection shackle of nail cover, the second screw thread with threaded connection between the nail cover.
Preferably, in order to enable the baffle to better abut against the nail sleeve and facilitate the fixation of the nail sleeve, four baffles are arranged and uniformly distributed on the side wall of the first fixing rod.
Preferably, in order to fix the baffle and facilitate the separation between the first fixing rod and the supporting column, the baffle is fixedly connected with a reinforcing rod, and the reinforcing rod is fixedly connected with the bottom end of the first fixing rod.
Preferably, in order to facilitate the hook ring to bend the baffle plate, so that the baffle plate blocks the bottom end of the nail sleeve, and the vehicle body and the underframe are better fixed, the cross section of the baffle plate is in an inverted L-shaped structure, and a gap is formed between the baffle plate and the connecting column.
Preferably, in order to increase the contact area with an object and thus facilitate better fixation of the vehicle body and the underframe, the top end of the nail sleeve is fixedly connected with a lug which is in an annular structure, and the outer diameter of the lug is larger than that of the nail sleeve.
Preferably, in order to prevent the shackle from striking the second thread, so that the shackle is damaged, and the cooperative use of the shackle and the baffle is affected, a supporting block is fixedly connected to the inner wall of the lug, and the supporting block abuts against the second thread.
The utility model has the advantages that: the utility model discloses when using, outer wall fixed connection's through first dead lever baffle, the nail cover is cup jointed to the second dead lever, the inner wall fixed connection shackle of nail cover, and thereby make the shackle on the nail cover by baffle card post when removing, and when the nail cover continues to remove to the direction of screwhead, the baffle is being driven the kickup by the shackle, then make the baffle keep off the bottom at the nail cover, and utilize pneumatic annular riveter taut with the bracing piece, until the junction fracture of bracing piece and first fixed bar, and in the extrusion baffle, the baffle is more inseparable with the bottom of nail cover, thereby make the baffle keep off the nail cover, prevent not hard up between automobile body and the chassis, thereby be favorable to better fixed between automobile body and the chassis.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic cross-sectional view of the baffle and support rods of FIG. 1;
FIG. 3 is a schematic view of the connection structure of the baffle, the support post and the reinforcing bar shown in FIG. 2;
fig. 4 is an enlarged view of the portion a shown in fig. 2.
In the figure: 1. the screw head, 2, the connecting rod, 3, the first thread, 4, the first fixing rod, 5, the baffle, 6, the supporting rod, 7, the connecting column, 8, the second thread, 9, the second fixing rod, 10, the lug, 11, the nail sleeve, 12, the reinforcing rod, 13, the supporting block, 14 and the shackle.
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.
Please refer to fig. 1-4, a device for connecting a body and a chassis of a pure electric city bus comprises a screw head 1, the screw head 1 is fixedly connected with a connecting rod 2, one end of the connecting rod 2 departing from the screw head 1 is fixedly connected with a first fixing rod 4, a first thread 3 is arranged on the first fixing rod 4, the first fixing rod 4 is fixedly connected with a supporting rod 6, an outer wall of the first fixing rod 4 is fixedly connected with a baffle 5, the supporting rod 6 deviates from one end of the first fixing rod 4 is fixedly connected with a connecting column 7, the connecting column 7 is fixedly connected with a second fixing rod 9, a side wall of the second fixing rod 9 is provided with a second thread 8, the second fixing rod 9 is sleeved with a nail sleeve 11, an inner wall of the nail sleeve 11 is fixedly connected with a shackle 14, and the second thread 8 is in threaded connection with the nail sleeve 11.
As a technical optimization scheme of the utility model, baffle 5 is equipped with four, four baffle 5 even distribution in the lateral wall of first dead lever 4.
As a technical optimization scheme of the utility model, 5 fixed connection anchor strut 12 of baffle, anchor strut 12 fixed connection the bottom of first dead lever 4.
As a technical optimization scheme of the utility model, the cross-section of baffle 5 is "L" structure of falling, baffle 5 with there is the gap between the spliced pole 7.
As a technical optimization scheme of the utility model, nail cover 11's top fixed connection lug 10, lug 10 is the loop configuration, lug 10's external diameter is greater than nail cover 11's external diameter.
As a technical optimization scheme of the utility model, the inner wall fixed connection supporting shoe 13 of lug 10, supporting shoe 13 is contradicted second screw thread 8.
The utility model discloses when using, at first, the passenger train adopts the full supporting body structure of mainstream, adopts abnormal shape round pin pipe as preceding, back enclose, left and right side encloses and top cap skeleton welding forms, adopts ordinary opposite-shaped steel pipe as chassis skeleton spring joint to form, and the automobile body passes through bolt riveting with the chassis, and has established contact analysis to last hundred bolts one by one with finite element analysis technique, has simulated passenger train automobile body and chassis riveting, calculates the local stress distribution of bolted connection region, and finite element analysis result bolt intensity satisfies the operation requirement; the second fixing rod 9 is penetrated through the mounting hole, so that the connecting rod 2 is positioned at the position of the mounting hole, the screw head 1 is abutted against the vehicle body, the nail sleeve 11 is sleeved on the second fixing rod 9, the nail sleeve 11 is moved to the position of the supporting rod 6, the hook ring 14 on the nail sleeve 11 is clamped by the baffle 5 when moving, the baffle 5 is driven by the hook ring 14 to bend upwards when the nail sleeve 11 continues to move towards the direction of the screw head 1, then the baffle 5 is abutted against the bottom end of the nail sleeve 11, then the muzzle of the pneumatic annular groove rivet gun is sleeved on the supporting rod 6 of the rivet and abutted against the baffle 5, the trigger on the gun is pulled, the rivet gun tightens the supporting rod 6 until the joint of the supporting rod 6 and the first fixing rod 4 is broken, the baffle 5 is abutted against the bottom end of the nail sleeve 11 when the baffle 5 is squeezed, and the lug 10 at the front end of the nail sleeve 11 is abutted against the underframe, thereby being beneficial to better fixing the vehicle body and the underframe.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (6)
1. The utility model provides a device that is used for electricelectric to move city passenger train automobile body and chassis to be connected, includes screwhead (1), its characterized in that: the screw head (1) is fixedly connected with a connecting rod (2), one end of the connecting rod (2) departing from the screw head (1) is fixedly connected with a first fixing rod (4), the first fixed rod (4) is provided with a first thread (3), the first fixed rod (4) is fixedly connected with a support rod (6), the outer wall of the first fixed rod (4) is fixedly connected with a baffle (5), one end of the support rod (6) departing from the first fixed rod (4) is fixedly connected with a connecting column (7), the connecting column (7) is fixedly connected with a second fixing rod (9), the side wall of the second fixing rod (9) is provided with a second thread (8), the second fixing rod (9) is sleeved with a nail sleeve (11), the inner wall of the nail sleeve (11) is fixedly connected with a hook ring (14), the second thread (8) is in threaded connection with the nail sleeve (11).
2. The device for connecting the body and the underframe of the pure electric city bus according to claim 1 is characterized in that: the number of the baffles (5) is four, and the baffles (5) are uniformly distributed on the side wall of the first fixing rod (4).
3. The device for connecting the body and the underframe of the pure electric city bus according to claim 1 is characterized in that: the baffle (5) is fixedly connected with a reinforcing rod (12), and the reinforcing rod (12) is fixedly connected with the bottom end of the first fixing rod (4).
4. The device for connecting the body and the underframe of the pure electric city bus according to claim 1 is characterized in that: the cross section of the baffle (5) is of an inverted L-shaped structure, and a gap exists between the baffle (5) and the connecting column (7).
5. The device for connecting the body and the underframe of the pure electric city bus according to claim 1 is characterized in that: the top end of the nail sleeve (11) is fixedly connected with the lug (10), the lug (10) is of an annular structure, and the outer diameter of the lug (10) is larger than that of the nail sleeve (11).
6. The device for connecting the body and the underframe of the pure electric city bus according to claim 5 is characterized in that: the inner wall of the lug (10) is fixedly connected with a supporting block (13), and the supporting block (13) is abutted against the second thread (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922497647.0U CN211223646U (en) | 2019-12-31 | 2019-12-31 | Device for connecting body and underframe of pure electric city bus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922497647.0U CN211223646U (en) | 2019-12-31 | 2019-12-31 | Device for connecting body and underframe of pure electric city bus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211223646U true CN211223646U (en) | 2020-08-11 |
Family
ID=71931823
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922497647.0U Expired - Fee Related CN211223646U (en) | 2019-12-31 | 2019-12-31 | Device for connecting body and underframe of pure electric city bus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211223646U (en) |
-
2019
- 2019-12-31 CN CN201922497647.0U patent/CN211223646U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200811 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |