CN208417256U

CN208417256U - A kind of roller line slideway auxiliary

Info

Publication number: CN208417256U
Application number: CN201821069701.0U
Authority: CN
Inventors: 李庆楠; 王守珏; 殷玲香
Original assignee: NANJING TECHNOLOGICAL EQUIPMENT MANUFACTURING Co Ltd
Current assignee: Nanjing Technology And Equipment Manufacturing Co ltd
Priority date: 2018-07-06
Filing date: 2018-07-06
Publication date: 2019-01-22
Anticipated expiration: 2028-07-06

Abstract

The utility model discloses a kind of roller line slideway auxiliaries, sliding block is connected on guide rail by roller slip, sliding block is equipped with sliding slot, the raceway for being used to support roller is equipped on the two sidewalls of sliding slot, track groove compatible with raceway is equipped on the side wall of guide rail, roller is placed between raceway and track groove, and the middle section of the bus of raceway is straightway on sliding block, and the length of the straightway is the 30 ~ 40% of raceway bus overall length, the both ends of raceway bus are divided into arc section.The middle section of the bus of track groove is straightway, and the length of the straightway is the 30 ~ 40% of track groove bus overall length, and the both ends of track groove bus are divided into arc section.Raceway bus in roller line slideway auxiliary is optimized for after logarithmic form effectively reducing the abrasion of sliding block and guide rail raceway by the utility model, improves the guideway service life.Especially when roller line slideway auxiliary high load, running at high speed, while extending in the raceway service life, guideway running stability also can be improved, reduce vibration and noise.

Description

A kind of roller line slideway auxiliary

Technical field:

The utility model relates to a kind of roller line slideway auxiliaries.

Background technique:

Roller line slideway auxiliary is that the roller in linear rolling guide is cylindrical roller, with high load, high rigidity The features such as, mainly it is made of guide rail, sliding block, roller, reverser, retainer, end cover etc..

At this stage, roller line slideway auxiliary load operating for a period of time after, can be stayed in sliding block raceway and guide rail raceway Lower roller runs trace.There are more apparent rollers to run trace in raceway, and at the corresponding raceway in roller both ends There are two apparent parallel trace lines, this is because raceway can be considered as without plane (i.e. raceway made of several Straight Combinations Bus is straight line), and roller bus is also straight line, and roller both ends are arc transition curve, at this point, contact of the roller with raceway its Stress distribution feature is as shown in Figure 1.

As seen from Figure 1, there is apparent edge effect in contact line both ends at this time, i.e., position is answered among contact line Power distribution is more average, but the stress abruptly increase at both ends, considerably beyond the stress numerical at intermediate position, to occur connecing The unusual distributed area of touch pressure is in particular in that sliding block raceway and guide rail raceway corresponding position can be because of the edge effects at roller both ends And there is raceway abrasion, i.e., occur two parallel running tracks on roller surface.

Summary of the invention:

The utility model is to provide a kind of roller line slideway auxiliary to solve the above-mentioned problems of the prior art.

Technical solution used by the utility model has: a kind of roller line slideway auxiliary, including sliding block, guide rail and roller, The sliding block is connected on guide rail by roller slip, the sliding block be equipped with sliding slot, the sliding slot along guide rail length direction Setting is equipped with the raceway for being used to support roller on the two sidewalls of sliding slot, is equipped on the side wall of guide rail and mutually fits with the raceway The track groove matched, roller are placed between raceway and track groove, and the middle section of the bus of raceway is straightway on the sliding block, and The length of the straightway is the 30 ~ 40% of raceway bus overall length, and the both ends of the raceway bus are divided into arc section.

Further, the middle section of the bus of the track groove is straightway, and the length of the straightway is track groove The both ends of the 30 ~ 40% of bus overall length, the track groove bus are divided into arc section.

The utility model has the following beneficial effects:

The utility model can effectively reduce sliding block after raceway bus in roller line slideway auxiliary is optimized for logarithmic form And the abrasion of guide rail raceway, improve the guideway service life.Especially when roller line slideway auxiliary high load, running at high speed, While the raceway service life extends, guideway running stability also can be improved, reduce vibration and noise.

Detailed description of the invention:

Fig. 1 is roller in the prior art and the stress envelope in sliding block when the contact of raceway.

Fig. 2 is the structure chart of sliding block in the utility model.

Fig. 3 is the enlarged drawing of raceway in Fig. 2 sliding block.

Fig. 4 is the schematic diagram of raceway bus in Fig. 2 sliding block.

Fig. 5 is the structure chart of guide rail in the utility model.

Fig. 6 is the enlarged drawing of track groove in Fig. 5 guide rail.

Fig. 7 is roller in the utility model and the stress envelope in sliding block when the contact of raceway.

Specific embodiment:

The utility model will be further described below with reference to the accompanying drawings.

Such as Fig. 2 to Fig. 7, a kind of roller line slideway auxiliary of the utility model, including sliding block 1, guide rail 2 and roller, sliding block 1 lead to Roller slip to be crossed to be connected on guide rail 2, sliding block 1 is equipped with sliding slot 11, which is arranged along the length direction of guide rail 2, The two sidewalls of sliding slot 11 are equipped with the raceway 12 for being used to support roller, are equipped on the side wall of guide rail 2 compatible with raceway 12 Track groove 21, roller are placed between raceway 12 and track groove 21.

The middle section of the bus of raceway 12 is straightway on sliding block 1, and the length of the straightway is that 12 bus of raceway is total The both ends of long 30 ~ 40%, 12 bus of raceway are divided into arc section.

The middle section of the bus of track groove 21 is straightway, and the length of the straightway is 21 bus overall length of track groove 30 ~ 40%, the both ends of 21 bus of track groove are divided into arc section.

The bus of track groove 21 in the bus of raceway 12 in sliding block 1 and guide rail 2 is optimized for logarithm mother by the utility model Line, feature are that the middle section of bus is straightway, and the length of the straightway is the 30 ~ 40% of bus overall length, the two of bus End is divided into arc section, and when bus is close to both ends, Curvature varying is accelerated, and specific bus equation is shown in formula (1),

(1)

In formula:

Q --- raceway load

E ' --- sliding block, guide material elasticity modulus

A --- raceway half is long

B --- radius of roller

Raceway is shown in Fig. 7 with stress distribution feature when roller contact at this time, by Fig. 7 it can be seen that when raceway bus is logarithm When bus, stress distribution is more uniform, does not occur the case where stress concentration.

Therefore sliding block and guide rail can effectively be reduced after raceway bus in roller line slideway auxiliary being optimized for logarithmic form The abrasion of raceway improves the guideway service life.Especially when roller line slideway auxiliary high load, running at high speed, in the raceway longevity While life extends, guideway running stability also can be improved, reduce vibration and noise.

The above is only the preferred embodiment of the utility model, it is noted that for the common skill of the art It for art personnel, can also make several improvements without departing from the principle of this utility model, these improvement also should be regarded as The protection scope of the utility model.

Claims

1. a kind of roller line slideway auxiliary, including sliding block (1), guide rail (2) and roller, the sliding block (1) is connected by roller slip It connecing on guide rail (2), the sliding block (1) is equipped with sliding slot (11), which is arranged along the length direction of guide rail (2), It is equipped with the raceway (12) for being used to support roller on the two sidewalls of sliding slot (11), is equipped with and the rolling on the side wall of guide rail (2) The compatible track groove (21) in road (12), roller are placed between raceway (12) and track groove (21), it is characterised in that: the sliding block (1) on the middle section of the bus of raceway (12) be straightway, and the length of the straightway be raceway (12) bus overall length 30 ~ 40%, the both ends of raceway (12) bus are divided into arc section.

2. roller line slideway auxiliary as described in claim 1, it is characterised in that: the middle part of the bus of the track groove (21) It is divided into straightway, and the length of the straightway is the 30 ~ 40% of track groove (21) bus overall length, track groove (21) bus Both ends are divided into arc section.