CN208169391U - A kind of leaf spring of fatigue crack-resistant - Google Patents

Abstract

The utility model discloses a kind of leaf springs of fatigue crack-resistant, including leaf spring, traction device and pressurizing unit；The traction device of setting can make the breaking part of post-rift leaf spring fit together, and will not hang down, while can increase the stress of leaf spring；The pressurizing unit of setting can change the metal fatigue point of metal, prevent metal from causing to be broken due to long-term reciprocating motion.

Description

A kind of leaf spring of fatigue crack-resistant

Technical field

The utility model relates to leaf springs of car fields, and in particular to a kind of leaf spring of fatigue crack-resistant.

Background technique

Leaf spring is the main bearing mechanism of automobile and elastic body, and in leaf spring when automobilism, leaf spring is often Duplicate to move back and forth, when leaf spring moves back and forth, the bolt hole of every piece of reed is prolonged past in leaf spring In multiple movement, it is easy to produce metal fatigue, after generating metal fatigue, the bolt hole position of every piece of reed in leaf spring can generate disconnected It splits, is easy to happen safety accident.To prevent reed to be broken due to metal fatigue, someone is extended using the method for thickening reed The time that reed is broken due to metal fatigue, such mode is at high cost, quality weight, is unfavorable for carrying and install.

Summary of the invention

In view of the above shortcomings of the prior art, the utility model proposes a kind of leaf spring of fatigue crack-resistant, prolong convenient for leaf spring The long time being broken due to metal fatigue, the service life of leaf spring is increased, the cost of vehicle maintenance is saved.

In order to achieve the above object, the embodiment of the utility model：A kind of leaf spring of fatigue crack-resistant, including leaf spring, traction Device and pressurizing unit, leaf spring are formed by stacking wherein leaf spring by multi-disc reed and are provided with traction device, and traction device includes fixing Seat, adjusting rod and traction rope, wherein fixing seat is the fixing seat point at both ends that are multiple and being separately fixed at leaf spring and leaf spring both ends Not Wei Yu leaf spring front and rear sides, inserted with being threadedly engaged with fixing seat in each fixing seat on leaf spring wherein one end Adjusting rod is fixed with traction rope on one end of every adjusting rod, and it is other end of that the other end of traction rope is fixed on leaf spring In fixing seat；The center of leaf spring is provided with pressurizing unit, pressurizing unit includes tabletting, adjusts bolt, and wherein tabletting is Two panels and tabletting are U-shaped piece and underlying tabletting is fixedly connected with the reed of leaf spring bottom, are provided in two tablettings Through-hole on through-hole and two pieces of tablettings is corresponding above and below, and insertion adjusts bolt in through-hole.

Compared with prior art, the utility model has the advantage of：The traction device of setting can make post-rift leaf spring Breaking part fit together, will not hang down, while the stress of leaf spring can be increased；The pressurizing unit of setting can change The metal fatigue point of metal, prevents metal from causing to be broken due to long-term reciprocating motion.

Detailed description of the invention

Fig. 1 is the main view of the utility model.

Fig. 2 is the top view of the utility model.

Fig. 3 is the main view that the utility model removes tabletting.

Fig. 4 is the partial sectional view that the utility model is torn open.

Wherein, 1, leaf spring, 1.1, reed, 2, traction device, 2.1, fixing seat, 2.2, adjusting rod, 2.3, traction rope, 3, squeeze Pressure device, 3.1, tabletting, 3.2, through-hole, 3.3, adjusting bolt.

Specific embodiment

It is further elucidated above to the utility model now in conjunction with attached drawing.

As shown in Figs 1-4, a kind of leaf spring of fatigue crack-resistant, including leaf spring 1, traction device 2 and pressurizing unit 3, leaf spring 1 It is formed by stacking by multi-disc reed 1.1, traction device 2 is provided on leaf spring 1, traction device 2 includes fixing seat 2.1, adjusting rod 2.2 With traction rope 2.3, wherein fixing seat 2.1 is four, and the both ends of leaf spring 1 are respectively fixed with two fixing seats by welding 2.1 and two fixing seats 2.1 at the every end of leaf spring 1 be located at the front and rear sides of leaf spring 1, the two of 1 right end front and rear sides of leaf spring Inserted with an adjusting rod being threadedly engaged with fixing seat 2.1 2.2 and adjusting rod 2.2 is threaded rod in a fixing seat 2.1, Be fixed with by welding on the left end of every adjusting rod 2.2 traction rope 2.3 and traction rope 2.3 be a plurality of steel wire winding and At wirerope, left end one end of two traction ropes 2.3 is fixed on the two of 1 left end front and rear sides of leaf spring by welding In a fixing seat 2.1；In the center of leaf spring 1（That is 1 centre bolt hole site of leaf spring）It is provided with pressurizing unit 3, squeezes dress Setting 3 includes tabletting 3.1, adjusting bolt 3.3, and wherein tabletting 3.1 is two panels, and tabletting 3.1 is U-shaped piece and underlying tabletting 3.1 are fixedly connected by welding with the reed 1.1 of 1 bottom of leaf spring, be provided in two tablettings 3.1 through-hole 3.2 and Through-hole 3.2 in two pieces of tablettings 3.1 is upper and lower corresponding, and insertion adjusts bolt 3.3 in through-hole 3.2, for adjusting two pieces of tablettings Relative position between 3.1.

In use, can rotate adjusting rod 2.2 when the reed 1.1 of the monolithic of leaf spring 1 is broken, adjust Under the action of 2.2 stress of bar, traction rope 2.3 be leaf spring 1 pulling force is provided, prevent leaf spring 1 from continuing to be broken, at the same need through It crosses when shaking bigger road surface, adjusting rod 2.2 can be rotated, tense traction rope 2.3, prevent since stress is excessive, and lead Leaf spring 1 is caused to be broken；When leaf spring 1 is using overlong time, 1 center of leaf spring generates gold due to active force Belong to fatigue, can twist in this way adjust bolt 3.3, compress two pieces of tablettings 3.1 to leaf spring 1, prevent 1 center of leaf spring at after Supervention gives birth to flexure operation, is transferred to the metal fatigue point of leaf spring 1 on the leaf spring 1 at 3.1 both ends of tabletting, prevents leaf spring 1 due to gold Belong to fatigue to produce fracture, increases the service life of leaf spring 1.

Claims (1)

1. a kind of leaf spring of fatigue crack-resistant, including leaf spring, traction device and pressurizing unit, leaf spring are formed by stacking by multi-disc reed Wherein leaf spring is provided with traction device, which is characterized in that traction device includes fixing seat, adjusting rod and traction rope, wherein fixing Seat is located at the front and rear sides of leaf spring for the fixing seat at both ends that are multiple and being separately fixed at leaf spring and leaf spring both ends, in plate Spring is wherein in each fixing seat on one end inserted with the adjusting rod being threadedly engaged with fixing seat, on one end of every adjusting rod It is fixed with traction rope, the other end of traction rope is fixed in the other end of fixing seat of leaf spring；It is installed in the centre bit of leaf spring It is equipped with pressurizing unit, pressurizing unit includes tabletting, adjusts bolt, and wherein tabletting is two panels and tabletting is U-shaped piece and is located below Tabletting be fixedly connected with the reed of leaf spring bottom, the through-hole being provided in through-hole and two pieces of tablettings in two tablettings is upper and lower Corresponding, insertion adjusts bolt in through-hole.