CN110645295A

CN110645295A - Multistage damping leaf spring

Info

Publication number: CN110645295A
Application number: CN201910936484.3A
Authority: CN
Inventors: 杨子荣; 狄风君; 谢结苟
Original assignee: 杨子荣
Current assignee: ZHEJIANG JINBAWANG SPRING Co.,Ltd.
Priority date: 2019-09-29
Filing date: 2019-09-29
Publication date: 2020-01-03
Anticipated expiration: 2039-09-29
Also published as: CN110645295B

Abstract

The invention relates to the field of springs, in particular to a multi-stage damping steel plate spring, which comprises four steel plate springs, wherein a first fixing mechanism is arranged at the center of each of the four steel plate springs, a second fixing mechanism is arranged at the position, corresponding to the two ends of each of the other three steel plate springs, of each of the steel plate springs, the two far ends of each of the steel plate springs are fixedly connected with mounting mechanisms, the two mounting mechanisms are fixedly connected through a thread mechanism, when the multi-stage damping steel plate spring is mounted, a threaded rod is aligned with a first fixing hole at the bottom of a fixing groove, the threaded rod is pushed downwards until the fixing rod abuts against the bottom of the fixing groove, then the first nut is in threaded connection with the threaded rod, the first steel plate spring, the second steel plate spring, the third steel plate spring and the fourth steel plate spring are fixed, the first nut is rotated into a placing groove and abuts against the bottom of the placing groove, the structure is prevented from shaking and loosening in the bumping process.

Description

Multistage damping leaf spring

Technical Field

The invention relates to the field of springs, in particular to a multi-stage damping steel plate spring.

Background

The steel plate spring is formed by superposing a plurality of alloy spring pieces with different lengths to form a beam with approximate equal strength, and the steel plate spring is mainly used as an elastic element of an automobile suspension system to transmit force and moment acting between a frame and an automobile body bracket in all directions, relieve impact load transmitted to an automobile body by tires under the conditions of uneven road surface and different loads, and play roles in buffering, shock absorption, guiding and transmission.

In the gravity type goods shelves storage, because the goods receives gravity to influence, do accelerated motion in the storage slide of slope, if let its free motion, the goods striking goods shelves may cause the goods to damage, operating personnel potential safety hazard and the damage of goods shelves overall structure. For uneven roads, the damping steel plates not only bear longitudinal force, but also can generate transverse force, so that the damping steel plates are easy to loosen in bumping, and a fixing frame on the steel plate spring and the steel plate spring do not have a good fixing mode, so that the steel plate spring is easy to slide, and therefore a multistage damping steel plate spring is necessary to be provided.

Disclosure of Invention

Aiming at the problems in the prior art, the invention provides a multi-stage damping steel plate spring.

The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides a multistage damping leaf spring, includes four leaf spring, four leaf spring's center department all is provided with a second fixed establishment, one of them on the position that leaf spring and other three leaf spring's both ends correspond, all is provided with a second fixed establishment, one of them leaf spring is the equal fixedly connected with installation mechanism in both ends of keeping away from mutually, two through screw thread mechanism fixed connection between the installation mechanism.

The four leaf springs comprise a first leaf spring, a second leaf spring, a third leaf spring and a fourth leaf spring, the lower surface of the first leaf spring is abutted to the upper surface of the second leaf spring, the lower surface of the second leaf spring is abutted to the upper surface of the third leaf spring, and the lower surface of the third leaf spring is abutted to the upper surface of the fourth leaf spring.

Specifically, the first fixing mechanism comprises four first fixing holes, the four first fixing holes are vertically arranged at the centers of four leaf springs, the hole axes of the four first fixing holes are arranged in a coincident manner, a fixing groove is arranged on the upper surface of the first leaf spring corresponding to the first fixing hole, a placing groove is arranged on the lower surface of the fourth leaf spring corresponding to the first fixing hole, the four first fixing holes are connected with a threaded rod through common threads, the upper end of the threaded rod penetrates through the upper end orifice corresponding to the first fixing hole and extends into the fixing groove, one end of the threaded rod, which is positioned in the fixing groove, is fixedly connected with a fixing rod matched with the fixing groove, the lower end of the threaded rod penetrates through the lower end orifice corresponding to the first fixing hole and the notch of the placing groove in sequence and extends out of the leaf springs, a first nut is connected to the wall of the threaded rod in the placing groove in a threaded mode;

be equipped with three relative grooves of accomodating of group on the threaded rod lateral wall, accomodate the first telescopic link of inslot wall fixedly connected with, first telescopic link passes and accomodates the slot that corresponds on groove and first leaf spring, second leaf spring and the third leaf spring, the one end that first telescopic link is located the slot is connected with the gag lever post, the parcel has expanding spring on the first telescopic link, the expanding spring both ends respectively with first telescopic link and gag lever post fixed connection, the inside second telescopic link that is equipped with of gag lever post, the spacing locking head that second telescopic link lower extreme is connected is inserted and is established at the spacing inslot that second leaf spring, third leaf spring and fourth leaf spring correspond, the expanding spring who connects second telescopic link and spacing locking head has wrapped up equally on the second telescopic link.

Specifically, the plurality of second fixing mechanisms comprise a positioning groove, the plurality of positioning grooves are respectively arranged at two sides of the lower surfaces of the second steel plate spring, the third steel plate spring and the fourth steel plate spring, a positioning block is slidably connected in the grooves of the plurality of positioning grooves, the lower ends of the plurality of positioning blocks penetrate through the notches of the positioning grooves and extend outwards and are fixedly connected with a fixing frame, the upper ends of the plurality of fixing frames penetrate through the upper surface of the first steel plate spring and extend upwards, two first threaded holes are symmetrically formed in the two opposite side walls of the fixing frame on the first steel plate spring in a penetrating manner, a first bolt is connected with the two first threaded holes through a common thread, a fixing plate is sleeved on the first bolt rod wall between the two opposite side walls of the fixing frame, and a second fixing hole is formed in the side wall of the fixing plate corresponding to the position of the first bolt, the first bolt rod wall between the two opposite side walls of the fixing frame is sleeved in the second fixing hole, one end of the first bolt penetrates through the corresponding first threaded hole and extends out of the fixing frame, and one end of the first bolt, which is positioned outside the fixing frame, is in threaded connection with a second nut.

Specifically, installation mechanism includes that two are the first mount pad that the semicircle form set up, two first mount pad difference fixed connection is at first leaf spring's both ends, two the below of first mount pad all is provided with a second mount pad that is the setting of semicircle form, two first connecting block, two of the equal fixedly connected with of one end that first leaf spring was kept away from to first mount pad the second mount pad is two and corresponds a second connecting block of fixedly connected with on the double-phase outside wall.

Specifically, two the screw thread mechanism includes two second screw holes, four the second screw hole is seted up respectively on four second connecting blocks, corresponds four a second thread groove has all been seted up to the first connecting block of second screw hole position and first leaf spring lower surface, four common threaded connection has a bolt in the second thread groove that the second screw hole respectively and correspond.

Specifically, the length of the first leaf spring is longer than that of the second leaf spring, the length of the second leaf spring is longer than that of the third leaf spring, and the length of the third leaf spring is longer than that of the fourth leaf spring.

The invention has the beneficial effects that:

(1) according to the multi-stage damping leaf spring, the first leaf spring, the second leaf spring, the third leaf spring and the fourth leaf spring are fixed, and the first nut is rotated into the placing groove and abutted against the groove bottom of the placing groove, so that the structure is prevented from shaking and loosening in bumping.

(2) According to the multi-stage damping steel plate spring, the positioning block on the fixing frame is aligned with the positioning groove and pushed in, so that the upper end of the fixing frame passes through the upper surface of the first steel plate spring, the second fixing hole on the fixing plate is aligned with the first threaded hole, and the fixing device is fixed by the bolts penetrating through the two first threads and the second fixing hole, so that the fixing piece can be effectively limited, and the fixing piece can be prevented from sliding in use.

Drawings

The invention is further illustrated with reference to the following figures and examples.

FIG. 1 is a schematic structural view of a multi-stage damping leaf spring according to the present invention;

FIG. 2 is an enlarged view of FIG. 1 at C according to the present invention;

FIG. 3 is a sectional view of a second fixing mechanism of a multi-stage damping leaf spring according to the present invention;

FIG. 4 is a top view of a second fixing mechanism of a multi-stage damping leaf spring according to the present invention;

FIG. 5 is an enlarged schematic view of the multi-stage damping leaf spring shown in FIG. 1;

fig. 6 is an enlarged schematic view of the multistage damping steel plate spring at B in fig. 1.

In the figure: 1. a leaf spring; 11. a first leaf spring; 12. a second leaf spring; 13. a third leaf spring; 14. a fourth leaf spring; 2. a first fixing mechanism; 21. a first fixing hole; 22. fixing grooves; 23. a placement groove; 24. a threaded rod; 241. a receiving groove; 242. a first telescopic rod; 243. a limiting rod; 244. a second telescopic rod; 245. a tension spring; 246. a limiting groove; 247. a limiting locking head; 248. a slot; 25. fixing the rod; 26. a first nut; 3. a second fixing mechanism; 31. positioning a groove; 32. positioning blocks; 33. a fixed mount; 34. a first threaded hole; 35. a first bolt; 36. a fixing plate; 37. a second fixing hole; 38. a second nut; 4. an installation mechanism; 41. a first mounting seat; 42. a second mounting seat; 43. a first connection block; 44. a second connecting block; 5. a screw mechanism; 51. a second threaded hole; 52. a second thread groove; 53. and a second bolt.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

As shown in fig. 1-6, the multi-stage damping leaf spring of the present invention comprises four leaf springs 1, a first fixing mechanism 2 is disposed at the center of each of the four leaf springs 1, a second fixing mechanism 3 is disposed at the position of each of the leaf springs 1 corresponding to the two ends of the other three leaf springs 1, two ends of one leaf spring 1 away from each other are fixedly connected to mounting mechanisms 4, and the two mounting mechanisms 4 are fixedly connected to each other through a screw mechanism 5.

Specifically, the four leaf springs 1 include a first leaf spring 11, a second leaf spring 12, a third leaf spring 13 and a fourth leaf spring 14, the lower surface of the first leaf spring 11 is abutted to the upper surface of the second leaf spring 12, the lower surface of the second leaf spring 12 is abutted to the upper surface of the third leaf spring 13, and the lower surface of the third leaf spring 13 is abutted to the upper surface of the fourth leaf spring 14.

Specifically, the first fixing mechanism 2 includes four first fixing holes 21, the four first fixing holes 21 are vertically formed at the centers of the four leaf springs 1, the hole axes of the four first fixing holes 21 are overlapped, a fixing groove 22 is formed on the upper surface of the first leaf spring 11 corresponding to the position of the first fixing hole 21, a placement groove 23 is formed on the lower surface of the fourth leaf spring 14 corresponding to the position of the first fixing hole 21, a threaded rod 24 is commonly and threadedly connected to the four first fixing holes 21, the upper end of the threaded rod 24 penetrates through the upper end hole opening corresponding to the first fixing hole 21 and extends into the fixing groove 22, a fixing rod 25 matched with the fixing groove 22 is fixedly connected to one end of the threaded rod 24 located in the fixing groove 22, the lower end of the threaded rod 24 sequentially penetrates through the lower end hole opening corresponding to the first fixing hole 21 and the notch of the placement groove 22 and extends out of the leaf spring 1, a first nut 26 is connected to the rod wall of the threaded rod 24 in the placing groove 23 in a threaded manner, the threaded rod 24 is aligned with the first fixing hole 21 at the bottom of the fixing groove 22, the threaded rod is pushed downwards until the fixing rod 25 abuts against the bottom of the fixing groove 22, then the threaded rod 24 is in threaded connection with the first nut 26, the first steel plate spring 11, the second steel plate spring 12, the third steel plate spring 13 and the fourth steel plate spring 14 are fixed, the first nut 26 is rotated into the placing groove 23 and abuts against the bottom of the placing groove 23, and shaking and loosening of the structure in bumping are avoided;

three sets of opposite accommodating grooves 241 are arranged on the side wall of the threaded rod 24, a first telescopic rod 242 is fixedly connected to the inner wall of the accommodating groove 241, the first telescopic rod 242 penetrates through the accommodating groove 241 and the corresponding slots 248 on the first leaf spring 11, the second leaf spring 12 and the third leaf spring 13, one end, located at the slot 248, of the first telescopic rod 242 is connected with a limiting rod 243, a telescopic spring 245 is wrapped on the first telescopic rod 242, two ends of the telescopic spring 245 are respectively and fixedly connected with the first telescopic rod 242 and the limiting rod 243, a second telescopic rod 244 is arranged inside the limiting rod 243, a limiting locking head 247 connected with the lower end of the second telescopic rod 244 is inserted into a limiting groove 246 corresponding to the second leaf spring 12, the third leaf spring 13 and the fourth leaf spring 14, a telescopic spring 245 connected with the second telescopic rod 244 and the limiting locking head 247 is also wrapped on the second telescopic rod 244, three sets of six first telescopic rods 242 are contracted into the accommodating groove 241 when being inserted into the first fixing hole 21, when the accommodating groove 241 is in butt joint with the slot 248, the extension spring 245 expands to stretch the first telescopic rod 242, when the limit groove 246 is in butt joint with the slot 248, the second telescopic rod 244 extends and retracts under the action of the extension spring 245 to drive the limit locking head 247 to be locked in the limit groove 246, the reinforcing threaded rod 24, the first steel plate spring 11, the second steel plate spring 12, the third steel plate spring 13 and the fourth steel plate spring 14 are fastened and connected again, and the steel plate spring looseness caused by the transverse direction and the longitudinal direction is reduced and ignored.

Specifically, the plurality of second fixing mechanisms 3 include a positioning groove 31, the plurality of positioning grooves 31 are respectively disposed on two sides of the lower surfaces of the second leaf spring 12, the third leaf spring 13 and the fourth leaf spring 14, a positioning block 32 is slidably connected in the groove of the plurality of positioning grooves 31, the lower ends of the plurality of positioning blocks 32 respectively penetrate through the notch of the positioning groove 31 and extend outward and are fixedly connected with a fixing frame 33, the upper ends of the plurality of fixing frames 33 respectively penetrate through the upper surface of the first leaf spring 11 and extend upward, two first threaded holes 34 are symmetrically formed on two opposite side walls of the plurality of fixing frames 33 on the first leaf spring 11, a first bolt 35 is commonly threaded in the two first threaded holes 34, a fixing plate 36 is sleeved on the rod wall of the first bolt 35 between the two opposite side walls of the fixing frame 33, a second fixing hole 37 is formed on the side wall of the fixing plate 36 corresponding to the position of the first bolt 35, the first bolt 35 located between the two opposite side walls of the fixing frame 33 is sleeved in the second fixing hole 37, one end of the first bolt 35 penetrates through the corresponding first threaded hole 34 and extends out of the fixing frame 33, one end of the first bolt 35 located outside the fixing frame 33 is connected with a second nut 38 through threads, the positioning block 32 on the fixing frame 33 is aligned with the positioning groove 31 and pushed into the positioning groove 31, so that the upper end of the fixing frame 33 passes through the upper surface of the first leaf spring 11, at this time, the second fixing hole 37 on the fixing plate 36 is aligned with the first threaded hole 34, and the fixing plate 36 is fixed by the bolt 35 passing through the two first threaded holes 34 and the second fixing hole 37.

Specifically, installation mechanism 4 includes two first mount pads 41 that are the semicircular setting, two first mount pads 41 are fixed connection respectively at first leaf spring 11's both ends, the below of two first mount pads 41 all is provided with a second mount pad 42 that is the semicircular setting, the equal fixedly connected with of one end of first leaf spring 11 is kept away from to two first mount pads 41 is first connecting block 43, be corresponding second connecting block 44 of fixedly connected with on two double-phase outside lateral walls of two second mount pads 42, install leaf spring 1 jointly through first mount pad 41 and second mount pad 42.

Specifically, the two screw mechanisms 5 include two second screw holes 51, four second screw holes 51 are respectively provided on four second connecting blocks 44, a second thread groove 52 is respectively provided on the lower surfaces of the first connecting block 43 and the first leaf spring 11 corresponding to the positions of the four second screw holes 51, the four second screw holes 51 are respectively and commonly in-screw connected with a bolt 53 in the corresponding second thread groove 52, and a bolt 53 is commonly in-screw connected with the second thread groove 52 through the second screw holes 51 to be fixed between the first mounting seat 41 and the second mounting seat 42.

Specifically, the length of the first leaf spring 11 is longer than the length of the second leaf spring 12, the length of the second leaf spring 12 is longer than the length of the third leaf spring 13, and the length of the third leaf spring 13 is longer than the length of the fourth leaf spring 14.

When the fixing structure is installed, firstly, the threaded rod 24 is aligned with the first fixing hole 21 at the bottom of the fixing groove 22, and is pushed downwards until the fixing rod 25 is abutted against the bottom of the fixing groove 22, then the first nut 26 is in threaded connection with the threaded rod 24, the first steel plate spring 11, the second steel plate spring 12, the third steel plate spring 13 and the fourth steel plate spring 14 are fixed, the first nut 26 is rotated into the placing groove 23 and abutted against the bottom of the placing groove 23, so that the structure is prevented from shaking and loosening in bumping, then the positioning block 32 on the fixing frame 33 is aligned with the positioning groove 31 and pushed in, so that the upper end of the fixing frame 33 passes over the upper surface of the first steel plate spring 11, at the moment, the second fixing hole 37 on the fixing plate 36 is aligned with the first threaded hole 34, and then the fixing plate 36 is fixed by the bolt 35 penetrating through the two first threaded holes 34 and the second fixing hole 37, can effectually carry out spacingly to mount 33, can avoid it can slide when using, cause leaf spring 1's damage.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the embodiments and descriptions given above are only illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the claims. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a multistage damping leaf spring, includes four leaf springs (1), its characterized in that: four the center department of leaf spring (1) is through being provided with a first fixed establishment (2), one of them all is provided with a second fixed establishment (3) on the position that the both ends of leaf spring (1) and other three leaf springs (1) correspond, one of them leaf spring (1) the equal fixedly connected with in both ends installation mechanism (4) that keep away from mutually, two through screw thread mechanism (5) fixed connection between installation mechanism (4).

2. The multi-stage damping leaf spring of claim 1, wherein: the four leaf spring (1) comprises a first leaf spring (11), a second leaf spring (12), a third leaf spring (13) and a fourth leaf spring (14), the lower surface of the first leaf spring (11) is offset with the upper surface of the second leaf spring (12), the lower surface of the second leaf spring (12) is offset with the upper surface of the third leaf spring (13), and the lower surface of the third leaf spring (13) is offset with the upper surface of the fourth leaf spring (14).

3. The multi-stage damping leaf spring of claim 1, wherein: the first fixing mechanism (2) comprises four first fixing holes (21), the four first fixing holes (21) are vertically arranged at the centers of the four leaf springs (1), the hole axes of the four first fixing holes (21) are arranged in a coincident manner, the upper surface of the first leaf spring (11) corresponding to the first fixing hole (21) is provided with a fixing groove (22), the lower surface of the fourth leaf spring (14) corresponding to the first fixing hole (21) is provided with a placing groove (23), the four first fixing holes (21) are jointly in threaded connection with a threaded rod (24), the upper end of the threaded rod (24) penetrates through the upper end hole opening corresponding to the first fixing hole (21) and extends into the fixing groove (22), one end of the threaded rod (24) located in the fixing groove (22) is fixedly connected with a fixing rod (25) matched with the fixing groove (22), the lower end of the threaded rod (24) sequentially passes through the lower end hole of the corresponding first fixing hole (21) and the notch of the placing groove (22) and extends out of the steel plate spring (1), and a first nut (26) is connected to the rod wall of the threaded rod (24) in the placing groove (23) in a threaded mode;

the threaded rod (24) is provided with three groups of opposite accommodating grooves (241) on the side wall, the inner wall of each accommodating groove (241) is fixedly connected with a first telescopic rod (242), the first telescopic rod (242) penetrates through the accommodating grooves (241) and corresponding slots (248) in the first leaf spring (11), the second leaf spring (12) and the third leaf spring (13), one end, located at the slot (248), of the first telescopic rod (242) is connected with a limiting rod (243), the first telescopic rod (242) is wrapped with a telescopic spring (245), two ends of the telescopic spring (245) are respectively and fixedly connected with the first telescopic rod (242) and the limiting rod (243), a second telescopic rod (244) is arranged inside the limiting rod (243), a limiting locking head (247) connected with the lower end of the second telescopic rod (244) is inserted into a limiting groove (246) corresponding to the second leaf spring (12), the third leaf spring (13) and the fourth leaf spring (14), the second telescopic rod (244) is also wrapped with a telescopic spring (245) which is connected with the second telescopic rod (244) and the limiting locking head (247).

4. The multi-stage damping leaf spring of claim 1, wherein: the plurality of second fixing mechanisms (3) comprise a positioning groove (31), the plurality of positioning grooves (31) are respectively arranged at two sides of the lower surfaces of the second steel plate spring (12), the third steel plate spring (13) and the fourth steel plate spring (14), a positioning block (32) is respectively connected in the groove of each positioning groove (31) in a sliding manner, the lower ends of the plurality of positioning blocks (32) penetrate through the notch of the positioning groove (31) and extend outwards and are fixedly connected with a fixing frame (33), the upper ends of the plurality of fixing frames (33) penetrate through the upper surface of the first steel plate spring (11) and extend upwards, two first threaded holes (34) are symmetrically formed in two opposite side walls of the fixing frame (33) on the first steel plate spring (11) in a penetrating manner, and a first bolt (35) is connected in the two first threaded holes (34) in a common threaded manner, a fixing plate (36) is sleeved on a rod wall of a first bolt (35) located between two opposite side walls of the fixing frame (33), a second fixing hole (37) is formed in the side wall, corresponding to the position of the first bolt (35), of the fixing plate (36) in a penetrating mode, the rod wall of the first bolt (35) located between the two opposite side walls of the fixing frame (33) is sleeved in the second fixing hole (37), one end of the first bolt (35) penetrates through a corresponding first threaded hole (34) and extends to the outside of the fixing frame (33), and a second nut (38) is connected to one end, located outside the fixing frame (33), of the first bolt (35) in a threaded mode.

5. The multi-stage damping leaf spring of claim 1, wherein: installation mechanism (4) are first mount pad (41) that the semicircle shape set up, two including two first mount pad (41) fixed connection respectively is at the both ends of first leaf spring (11), two the below of first mount pad (41) all is provided with a second mount pad (42) that is the setting of semicircle shape, two the equal fixedly connected with of one end of first leaf spring (11) is kept away from in first mount pad (41) first connecting block (43), two be on the double-phase outside wall of second mount pad (42) and correspond second connecting block (44) of fixedly connected with.

6. The multi-stage damping leaf spring of claim 1, wherein: two screw mechanism (5) include two second screw hole (51), four second screw hole (51) are seted up respectively on four second connecting block (44), correspond four first connecting block (43) and first leaf spring (11) lower surface at second screw hole (51) position have all seted up one second thread groove (52), four second screw hole (51) respectively with correspond second thread groove (52) in common threaded connection have a bolt (53).

7. The multi-stage damping leaf spring of claim 2, wherein: the length of the first leaf spring (11) is longer than that of the second leaf spring (12), the length of the second leaf spring (12) is longer than that of the third leaf spring (13), and the length of the third leaf spring (13) is longer than that of the fourth leaf spring (14).