CN208826482U - Integral type roller slide core - Google Patents

Abstract

The utility model relates to integral type roller slide cores, belong to the force transferring part of torque spanner, including roller and slide core, wherein, the roller 4 at least part is fixed in slide core ontology by backing pin, and the rear end of slide core ontology makes the torque of the output of spanner keep homeostasis by spring compression.The slide core ontology of the utility model slides freely pulling in pipe, because roller and slide core ontology are one, reduce and avoids rigging error, improve the precision of spanner.

Description

Integral type roller slide core

Technical field

The utility model relates to integral type roller slide cores, belong to the force transferring part of torque spanner.

Background technique

Slide core in torque wrench is an important force value transferring element, and whether design is proper to directly affect torque wrench Precision.

The slide core ball-collecting rack of application number 200620046765.X torque spanner is related to the slide core roller press applied in torque spanner Structure.A kind of slide core ball-collecting rack of torque spanner, comprising: slide core and rolling mechanism, wherein the rolling mechanism includes ball-collecting rack and small Ball, the ball-collecting rack are radially evenly distributed with holes of two or more suit beads, in bead embedded hole, same radially-arranged bead It is one group, bead is arranged in parallel two groups or two groups or more in the axial direction of ball-collecting rack, is embedded in the small ball's diameter positioned in the hole and is greater than The wall thickness of ball-collecting rack, the slide core being sleeved in ball-collecting rack and ball-collecting rack inner wall have gap.Utility model has the advantages that positioning slide core It will not rotate, thus deviate spring will not, it is non-aging, sliding friction is replaced with rolling friction, keeps contact area small, Frictional resistance is reduced, the transmitting accuracy of spring is improved, torque value is light when setting, and required active force is small.

In addition, also having the structure of the roller being made of roller 4, rectangular guide way 5 and slide core 6 transmitting force value, such as Fig. 6 institute Show, the head 1 of torque spanner is fixed on through stub 2 pulls on pipe 3, and the tail end on head 1 has circle recessed, and roller 4, is slided rectangular guide way 5 Core 6 is compressed by spring 7.Because structural member disperses, easily there is rigging error.

Utility model content

The utility model aim is to provide a kind of integral type roller slide core, to reduce rigging error.

The utility model aim is realized by following proposal: integral type roller slide core is used for spanner, including roller and cunning Core, in which: the roller at least part is fixed in slide core ontology by backing pin, the rear end of slide core ontology by spring compression, The torque of the output of spanner is set to keep homeostasis.

The utility model is roller and the combined roller slide core of slide core, reduces and avoid the error in assembly, Improve the precision of spanner.

On the basis of above scheme, the slide core body portion has the socket concentric with roller, and roller is that seat is same at this In pit of the stomach slot, after roller stress, it can be moved together together with slide core ontology while own rotation.

On the basis of above scheme, there is spacing in the center of circle of the socket far from end face, makes roller will not be in the axis of slide core ontology To skidding off socket.

On the basis of above scheme, one side and the rolling friction of socket bottom of the roller, another side are blocked by backing pin.

The slide core ontology is high-strength plastic materials and parts, has several that can take the R slot of lubricating grease in its outer circle.

The working principle of the utility model is: torque wrench when reaching preset torque, can be overturn rapidly, formed larger Angle, operator i.e. can stop exerting a force, the torque of output and the precompression of spring are related.

The utility model is advantageous in that: slide core ontology slides freely pulling in pipe, because roller and slide core ontology are one Body reduces and avoids rigging error, improves the precision of spanner.

Detailed description of the invention

Fig. 1 the utility model structural representation main view diagrammatic cross-section；

Fig. 2 the utility model structural representation top cross-sectional view；

Fig. 3 the utility model structural representation side elevational cross-section schematic diagram；

Fig. 4 embodiment is used for the diagrammatic cross-section of spanner；

Fig. 5 embodiment spanner reaches diagrammatic cross-section when torque；

The existing commercially available spanner diagrammatic cross-section of Fig. 6；

Figure label explanation:

1 --- head；2 --- stub；

3 --- pull pipe；4 --- roller；

5 --- rectangular guide way；6 --- slide core；

7 --- spring；

8 --- slide core ontology；

81 --- socket；82 --- R slot；

9 --- backing pin.

On being fixed on, the tail end on head 1 has circle recessed, and the roller 4 of the utility model integral type roller slide core is recessed embedded in circle Interior, rear end is compressed by spring 7.

Specific embodiment

Fig. 1 the utility model structural representation main view diagrammatic cross-section, the signal of Fig. 2 the utility model structural representation top view cross section Shown in figure and Fig. 3 the utility model structural representation side elevational cross-section schematic diagram, integral type roller slide core is used for spanner, including roller 4 And slide core, in which: at least part is by backing pin 9 in slide core ontology 8 for the roller 4, and the rear end of slide core ontology 8 is by spring 7 compress, and as shown in Figures 4 and 5, the torque of the output of spanner are made to keep homeostasis.

As shown in Figures 1 to 3, there be the socket 81 concentric with roller 4 in 8 front of slide core ontology, and roller 4 is seat in the nest In slot 81, after 4 stress of roller, it can be moved together together with slide core ontology 8 while own rotation.

As shown in Fig. 2, there is spacing △ in the center of circle of the socket 81 far from end face, make roller 4 will not be in the axis of slide core ontology 10 To skidding off socket.

As shown in figs. 1 and 3, the 81 bottom rolling friction of one side with socket of the roller 4, another side are blocked by backing pin 9.

The slide core ontology 8 is high-strength plastic materials and parts, has several that can take the R slot 82 of lubricating grease in its outer circle.

As shown in figure 4, also having the structure of the roller being made of roller 4 and backing pin 9 transmitting force value, the head 1 of torque spanner It is fixed on and is pulled on pipe 3 through stub 2, the tail end on head 1 has circle recessed, and the roller 4 of its front end is embedded in head 1 after the utility model assembly Tail end have circle it is recessed in, rear end is compressed by spring 7.

As shown in figure 5, can be moved together together with slide core ontology 8 while own rotation after 4 stress of roller.When reaching It can be overturn rapidly when to torque value, form biggish angle, operator can stop exerting a force；This is practical new under 7 pressure of spring Type is returned to such as Fig. 4.

Claims (5)

1. integral type roller slide core is used for spanner, including roller and slide core, it is characterised in that: roller (4) at least portion Part is fixed in slide core ontology by backing pin, and the rear end of slide core ontology makes the torque of the output of spanner keep homeostasis by spring compression.

2. integral type roller slide core according to claim 1, it is characterised in that: the slide core body portion has and roller Concentric socket, roller are seats in the concentric socket, can be together with slide core ontology while own rotation after roller stress It moves together.

3. integral type roller slide core according to claim 2, it is characterised in that: between the center of circle of the socket has far from end face Away from making roller will not be in the axially sliding socket of slide core ontology (10).

4. integral type roller slide core according to claim 3, it is characterised in that: the one side and socket of the roller (4) Bottom rolling friction, another side are blocked by backing pin.

5. integral type roller slide core according to claim 1 or 2, it is characterised in that: the slide core ontology is high intensity Plastic part has several that can take the R slot of lubricating grease in its outer circle.