CN108662017B - Linear guide rail - Google Patents
Linear guide rail Download PDFInfo
- Publication number
- CN108662017B CN108662017B CN201810879281.0A CN201810879281A CN108662017B CN 108662017 B CN108662017 B CN 108662017B CN 201810879281 A CN201810879281 A CN 201810879281A CN 108662017 B CN108662017 B CN 108662017B
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- Prior art keywords
- guide rail
- sliding block
- oil
- rolling
- positioning
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- 238000005096 rolling process Methods 0.000 claims abstract description 174
- 230000001050 lubricating effect Effects 0.000 claims abstract description 36
- 239000000428 dust Substances 0.000 claims abstract description 19
- 239000003921 oil Substances 0.000 claims description 128
- 230000004087 circulation Effects 0.000 claims description 78
- 239000010687 lubricating oil Substances 0.000 claims description 67
- 239000002861 polymer material Substances 0.000 claims description 11
- 210000002268 wool Anatomy 0.000 claims description 11
- 239000000314 lubricant Substances 0.000 claims description 9
- 238000002347 injection Methods 0.000 claims 2
- 239000007924 injection Substances 0.000 claims 2
- 238000005461 lubrication Methods 0.000 abstract description 20
- 238000012423 maintenance Methods 0.000 abstract description 10
- 230000014759 maintenance of location Effects 0.000 abstract description 5
- 239000002245 particle Substances 0.000 description 9
- 239000012535 impurity Substances 0.000 description 7
- 230000009286 beneficial effect Effects 0.000 description 6
- 239000000945 filler Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 238000010521 absorption reaction Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000011324 bead Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C29/00—Bearings for parts moving only linearly
- F16C29/04—Ball or roller bearings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C29/00—Bearings for parts moving only linearly
- F16C29/08—Arrangements for covering or protecting the ways
- F16C29/082—Arrangements for covering or protecting the ways fixed to the way
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N1/00—Constructional modifications of parts of machines or apparatus for the purpose of lubrication
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bearings For Parts Moving Linearly (AREA)
Abstract
The invention provides a linear guide rail, which comprises a sliding block, a guide rail, rolling bodies, a rolling body chain, two inner loops, two outer loops, a lubricating piece and two dust covers, wherein the sliding block can be arranged on the guide rail in a rolling way through the rolling body chain and the rolling bodies arranged in the sliding block, the inner loops are respectively and fixedly arranged at the left end and the right end of the sliding block, the rolling body chain is inserted into a circulating roller path formed between the sliding block and the guide rail through the inner loops, the outer ends of the inner loops are fixedly provided with the outer loops, the outer ends of the outer loops at the left end are fixedly provided with the dust covers, the outer ends of the outer loops at the right end are fixedly provided with the lubricating piece, and the outer ends of the lubricating piece are fixedly provided with the dust covers. The invention has compact and stable structure, stable running of the rolling bodies, high running speed and long lubrication time retention, thereby realizing long-time maintenance-free and reducing maintenance cost. The lubricating property between the sliding block and the guide rail is good, the linear guide rail can be lubricated no matter how placed due to the structure of the oil guide element, and the big and small head structure of the dustproof strip is convenient and correct to install.
Description
Technical Field
The invention relates to the technical field of machinery, in particular to a linear guide rail.
Background
The linear guide rail is also called a linear rail, a sliding rail, a linear guide rail and a linear sliding rail, is used for the occasion of linear reciprocating motion, can bear a certain torque, and can realize high-precision linear motion under the condition of high load. The linear guide rail is used for supporting and guiding the moving part to make reciprocating linear motion in a given direction. The linear guide rail is mainly used for a mechanical structure with higher precision requirement, and an intermediate medium is not used between a moving element and a fixed element of the linear guide rail, but rolling bodies are used.
At present, the conventional linear guide has the following drawbacks.
1. When the linear guide rail works, the sliding blocks circularly slide on the guide rail through the rolling bodies, the rolling bodies are contacted to form circular rolling, the moving directions of the positions where the rolling bodies are contacted are opposite, so that the rolling bodies are mutually rubbed, heat is easily generated by friction to influence the running speed of the rolling bodies, the rolling bodies are worn by long-time friction, the service life of the rolling bodies is shortened, the maintenance times are increased frequently, and the cost is increased.
2. According to different working occasions, the linear guide rail is installed in different directions, and because the installation of different directions is placed, the lubricating oil in the lubricating oil cavity cannot meet the requirements of oil supply and lubrication in each direction, so that the normal operation of the linear guide rail is influenced, when the lubricating oil only exists at the bottom, the lubricating oil cannot reach the upper part, and therefore cannot reach the circulating roller path between the guide rail and the sliding block, and the operation and lubrication of the linear guide rail are influenced.
3. Gaps are reserved between the sliding blocks and the guide rails in the linear guide rails, when the sliding blocks cover the guide rails, tiny particles outside the guide rails easily enter grooves on two sides of the guide rails during working, and when the sliding blocks cover the guide rails again for operation, the tiny particles enter the bead grooves, so that the rolling bodies between the sliding blocks and the guide rails are easily blocked.
Disclosure of Invention
In order to overcome the defects of the prior researches, the invention provides the linear guide rail which is compact and stable in structure, reasonable in design, stable in running of the rolling bodies, high in running speed and long in lubrication time retention, so that long-time maintenance-free is realized, and the maintenance cost is reduced. The lubricating property between the sliding block and the guide rail is good, and the arrangement of the oil guide element can realize good lubrication no matter how the linear guide rail is placed, so that the dustproof strip big-and-small-head structure is convenient and correct to install, and tiny impurity particles are prevented from entering the gap of the guide rail to influence the normal operation of the linear guide rail. In order to realize the functions, the technical problems of the invention are mainly solved by the following technical proposal:
the invention provides a linear guide rail, which comprises a sliding block, a guide rail, rolling bodies, a rolling body chain, two inner loops, two outer loops, a lubricating piece and two dust covers, wherein the sliding block can be arranged on the guide rail in a rolling way through the rolling body chain and the rolling bodies arranged in the sliding block, the inner loops are respectively and fixedly arranged at the left end and the right end of the sliding block, the rolling body chain is inserted into a circulating roller path formed between the sliding block and the guide rail through the inner loops, the outer ends of the inner loops are fixedly provided with the outer loops, the outer ends of the outer loops at the left end are fixedly provided with the dust covers, the outer ends of the outer loops at the right end are fixedly provided with the lubricating piece, and the outer ends of the lubricating piece are fixedly provided with the dust covers.
Further, an upper bracket, a middle bracket and a lower bracket are respectively fixed on the upper part, the middle part and the lower part between the sliding block and the guide rail, an upper dustproof strip is arranged between the upper bracket and the guide rail, a lower dustproof strip is arranged between the bottom of the lower bracket and the two sides of the guide rail, the two ends of the upper dustproof strip and the lower dustproof strip are fixedly connected with an inner circulation tenon-and-mortise structure and an outer circulation tenon-and-mortise structure, and a rolling body chain is arranged between the sliding block and the guide rail and is positioned in a circulation rollaway nest formed between the middle bracket and the upper bracket and the lower bracket respectively.
Further, the upper dustproof strip and the lower dustproof strip comprise a long rod and a clamping tenon, the clamping tenons are fixed at two ends of the long rod, the clamping tenons are raised heads, the raised heads at one end are large heads, and the raised heads at the other end are small heads;
the position of the upper bracket and the upper dustproof bar are provided with long bar grooves, and the position of the lower bracket and the lower dustproof bar are provided with long bar grooves.
Further, the middle part is provided with inner loop locating hole one on the slider, and the lower part is provided with the sleeve pipe through-hole, and lower part both sides are provided with locating hole one, install the sleeve pipe in the sleeve pipe through-hole, and the sleeve pipe both ends are provided with the setting element.
Further, an inner circulation positioning hole II is formed in the upper part of the inner circulation, an upper bracket positioning piece, a middle bracket positioning piece and a lower bracket positioning piece are respectively arranged on the upper part, the middle part and the lower part of the inner circulation, sleeve positioning pieces are arranged on two sides of the lower part, a positioning hole II is formed in the outermost side of the lower part, a rolling body chain supporting piece is arranged on one side, close to the outer circulation, of the inner circulation, and a rod groove is formed in the position, matched with the upper dustproof strip and the lower dustproof strip, of the inner circulation;
the inner circulations of upper bracket, well support, lower carriage both ends and both ends are through upper bracket setting element, well support setting element, lower carriage setting element mortise and tenon fourth of the twelve earthly branches structure fixed connection in proper order, and the setting element at sleeve pipe both ends passes through sleeve pipe setting element mortise and tenon fourth of the twelve earthly branches structure fixed connection with the inner circulations at its both ends, and the rolling element chain cover is on rolling element chain support piece, goes up the stock block of dustproof strip, lower dustproof strip in the pole inslot.
Further, the outer circulation upper portion both sides set up inner loop locating hole three, and upper portion central point puts and is provided with oil duct hole one, and the lower part is provided with rolling element chain cavity, and lower part both sides are provided with locating hole three, and the outer circulation is provided with the card tenon groove with the both ends cooperation setting of last dustproof strip, lower dustproof strip, goes up the trip block of dustproof strip down in the card tenon groove.
Further, the lubricating piece comprises a lubricating oil box and a lubricating oil cover, the lubricating oil box is fixedly connected with the lubricating oil cover to form a closed lubricating cavity, and an oil guide element is arranged in the lubricating cavity;
the center of the upper part of the lubricating oil cover is provided with an oil passage hole II, the lower part of the lubricating oil cover is provided with a positioning hole IV, and one side close to the lubricating oil box is provided with a positioning bulge;
the center of the upper part of the lubricating oil box is provided with an oil passage hole III, the lower part of the lubricating oil box is provided with a positioning hole V, and the lubricating oil box is provided with a positioning groove matched with the positioning protrusion;
the oil guiding element is of a three-dimensional structure matched with the lubricating cavity, and comprises an upper oil guiding piece and a lower oil guiding piece, wherein the upper oil guiding piece and the lower oil guiding piece are connected up and down, the middle part of the upper oil guiding piece is respectively folded into 90 degrees with the two end parts, and the oil guiding element is made of wool felt or high polymer materials.
Further, the middle part is provided with the oil filler point on the shield, and lower part both sides are provided with locating hole six, and lubricating oil passes through oil filler point, oil duct hole three, oil duct hole two, oil duct hole one gets into the circulation raceway that forms between slider and the guide rail.
Further, the sliding block is sequentially inserted into the third inner circulation positioning hole, the second inner circulation positioning hole and the first inner circulation positioning hole from outside to inside through bolts, and is fixedly connected with the first inner circulation positioning hole, the sliding block is sequentially inserted into the sixth positioning hole, the fifth positioning hole, the fourth positioning hole, the third positioning hole, the second positioning hole and the first positioning hole from outside to inside through bolts, so that the sliding block, the inner circulation, the outer circulation, the lubricating oil cover, the lubricating oil box and the dust cover are fixedly connected in pairs.
Further, the rolling body chains are formed by connecting rolling body cavities at intervals to form an open type elliptical ring structure, the rolling body cavities are cavities matched with the rolling bodies, and the rolling bodies are arranged in the rolling body cavities in a rolling way.
The working principle and the process of the invention.
When the linear guide rail works, the sliding block circularly slides on the guide rail through the rolling bodies arranged in the rolling body chain. Before working, the lubricating oil cavity in the lubricating piece is filled with lubricating oil through the oil filling hole III, and the lubricating oil enters a circulating track formed between the sliding block and the guide rail through the oil filling hole II and the oil passage hole I to lubricate the rolling body chain and the rolling body. According to different positions of the linear guide rail, the lubricating oil is led into the oil passage hole II through the oil guide element in the lubricating oil cavity, and then the rolling body chain and the rolling body are lubricated by the circulating track formed by the oil passage hole II entering the sliding block and the guide rail through the oil passage hole I, so that the sliding block slides on the guide rail more smoothly for a long time.
Because the rolling bodies are arranged in the rolling body chains, the rolling body chains are formed by connecting the rolling body cavities at intervals to form an open type elliptical ring-shaped structure, the rolling body cavities are cavities matched with the rolling bodies, and the rolling bodies are arranged in the rolling body cavities in a rolling way. The rolling bodies are mutually separated through the rolling body chains, so that the rolling bodies are uniformly arranged at intervals in the rolling body chains to perform circulating motion when working. The rolling bodies are evenly spaced by the rolling body chains, so that the rolling bodies can run more stably when working. When the rolling bodies do circulation motion, mutual friction does not exist between every two rolling bodies, lubricating oil stored between the rolling bodies and the rolling body chains can be applied to the surfaces of the rolling bodies along with the rotation of the rolling bodies, so that a layer of oil film is always kept on the surfaces of the rolling bodies for lubrication, the mutual friction and collision between the rolling bodies and between the rolling bodies and the rolling body chains are avoided, the damage of rolling noise between the rolling bodies and the rolling body chains and the impact force generated by the mutual collision to the rolling bodies is reduced, the running speed is improved, the lubrication time retention is long, the long-time maintenance is realized, and the maintenance cost is reduced.
The inner circulation and the outer circulation sequentially enable the rolling element chains to move circularly in the circulating roller path.
The inner loop at sleeve pipe both ends and both ends passes through mortise and tenon structure fixed connection, and upper bracket, well support, lower carriage both ends respectively with the inner loop at its both ends pass through mortise and tenon structure fixed connection, mortise and tenon structure fixed firm, and is reliable and stable, can restrict the twisting of each direction between sleeve pipe and the inner loop effectively, and the sleeve pipe has played the effect of location and support. The inner circulation at the left end and the right end of the sliding block plays a role in positioning through the sleeve, and plays a role in supporting through the upper bracket, the middle bracket and the lower bracket, so that the whole linear guide rail is compact in structure and high in stability.
The lubricating oil box is fixedly connected with the lubricating oil cover to form a closed lubricating cavity, and an oil guide element is arranged in the lubricating cavity. The oil guiding element is of a three-dimensional structure matched with the lubricating cavity and comprises an upper oil guiding piece and a lower oil guiding piece, the upper oil guiding piece and the lower oil guiding piece are connected up and down, the middle part of the upper oil guiding piece is respectively folded into 90 degrees with the two end parts, and the oil guiding element is made of wool felt or polymer materials. The linear guide rail is placed in any way, oil in the lubricating cavity can be sucked into the second oil passage hole through the oil guide element and then sent between the sliding block and the guide rail working surface, even if the lubricating oil is only used for the lower part of the lubricating oil cavity, the lubricating oil can be guided into the upper part of the oil guide part through the bottommost part of the oil guide element, and the wool felt or high polymer material is good in oil absorption. The middle part is provided with the oil filler point on the shield, makes things convenient for the oiling.
An upper dustproof strip is arranged between the upper bracket and the guide rail, and a lower dustproof strip is arranged between the bottom of the lower bracket and the two sides of the guide rail. The arrangement of the upper dustproof strip and the lower dustproof strip enables the linear guide rail to prevent tiny impurity particles from entering gaps of the guide rail to influence the normal operation of the linear guide rail when the slide block does not cover the guide rail during operation.
The long rods of the upper dustproof strip and the lower dustproof strip are fixedly connected with the upper bracket and the lower bracket through long rod grooves, and the two end parts of the upper dustproof strip and the lower dustproof strip are respectively fixedly connected with the inner circulation mortise and tenon structures and the outer circulation mortise and tenon structures through rod grooves and clamping tenon grooves. The mortise and tenon structure ensures that the dustproof strip is firmly fixed with the upper bracket, the lower bracket, the inner circulation and the outer circulation, and is accurate in positioning and convenient to install.
The upper dustproof strip and the lower dustproof strip comprise a long rod and a clamping tenon, the clamping tenons are fixed at two ends of the long rod, the clamping tenons are raised heads, the raised heads at one end of the clamping tenons are large heads, and the raised heads at the other end of the clamping tenons are small heads. The dustproof strip is relatively small compared with the whole linear guide rail, and the big and small head structure of the dustproof strip is beneficial to the correct assembly of the dustproof strip, so that the dustproof strip is prevented from being reworked due to misplacement during assembly.
The invention has the beneficial effects of.
1. In the linear guide rail, as the rolling bodies are arranged in the rolling body chains, the rolling bodies are uniformly spaced by the rolling body chains, so that the rolling bodies can run more stably when working; the rolling elements and the rolling elements are not rubbed and collided with each other, so that the damage of rolling noise between the rolling elements and the rolling element chain and impact force generated by the collision to the rolling elements is reduced, the running speed is improved, the lubrication time is long, and the long-time maintenance-free performance is realized, and the maintenance cost is reduced.
2. According to the linear guide rail, the two ends of the sleeve are fixedly connected with the inner circulation at the two ends of the sleeve through the mortise and tenon structures, the two ends of the upper bracket, the middle bracket and the lower bracket are respectively fixedly connected with the inner circulation at the two ends of the upper bracket, the middle bracket and the lower bracket through the mortise and tenon structures, the mortise and tenon structures are fixedly firm, the sleeve is stable and reliable, the twisting between the sleeve and the inner circulation in all directions can be effectively limited, and the sleeve plays a role in positioning and supporting. The inner circulation at the left end and the right end of the sliding block plays a role in positioning through the sleeve, and plays a role in supporting through the upper bracket, the middle bracket and the lower bracket, so that the whole linear guide rail is compact in structure and high in stability.
3. The oil guide element in the linear guide rail is of a three-dimensional structure matched with the lubricating cavity, and is made of wool felt or high polymer materials. The linear guide rail is placed in any way, oil in the lubrication cavity can be sucked into the second oil passage hole through the oil guide element and then sent between the sliding block and the guide rail working surface, even if the lubricating oil is only used for the lower part of the lubrication oil cavity, the lubricating oil can be guided into the upper part of the oil guide part through the bottommost part of the oil guide element, and the wool felt and the high polymer material have good oil absorption property. The middle part is provided with the oil filler point on the shield, makes things convenient for the oiling.
4. The arrangement of the upper dustproof strip and the lower dustproof strip in the linear guide rail ensures that tiny impurity particles are prevented from entering the gap of the guide rail to influence the normal operation of the linear guide rail when the linear guide rail works. The big-small head structure of the dustproof strip is beneficial to the correct assembly of the dustproof strip, so that the dustproof strip can be prevented from being reworked due to misplacement during assembly.
5. According to the linear guide rail, the upper dustproof strip and the lower dustproof strip are fixed with the upper support, the lower support, the inner circulation and the outer circulation through the mortise and tenon structures, so that the linear guide rail is firm in fixation, accurate in positioning and convenient to install.
6. The linear guide rail disclosed by the invention has the advantages of compact and stable structure, reasonable design, stable running of the rolling bodies, high running speed and long lubrication time retention, so that long-time maintenance-free is realized, and the maintenance cost is reduced. The lubricating property between the sliding block and the guide rail is good, the arrangement of the oil guiding element structure can realize good lubrication no matter how the linear guide rail is placed, the dustproof strip big-end and small-end structure is convenient and correct to install, and tiny impurity particles are prevented from entering the gap of the guide rail to influence the normal operation of the linear guide rail.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic view of a linear guide rail structure according to the present invention.
Fig. 2 is an exploded view of a linear guide assembly according to the present invention.
Fig. 3 is a schematic diagram of a rolling element chain structure in a linear guide according to the present invention.
Fig. 4 is a schematic diagram of an internal circulation structure in a linear guide rail according to the present invention.
Fig. 5 is a schematic diagram of an internal circulation structure in a linear guide rail according to the present invention.
Fig. 6 is a schematic diagram of an external circulation structure in a linear guide rail according to the present invention.
Fig. 7 is a schematic view of a lubricant structure in a linear guide according to the present invention.
Fig. 8 is a schematic view of a dust cover in a linear guide according to the present invention.
Fig. 9 is a schematic structural diagram of an oil guiding element in a linear guide rail according to the present invention.
Fig. 10 is a schematic view of a dust-proof strip in a linear guide rail according to the present invention.
Fig. 11 is a schematic view of the structure of a guide rail, a bracket and a dust-proof strip in a linear guide rail according to the present invention.
In the figure: 1. a slide block; 1.1, an internal circulation positioning hole I; 1.2, a sleeve through hole; 1.3, positioning holes I;
2. a guide rail;
3. a rolling element chain; 3.1, rolling the body cavity;
4. internal circulation; 4.1, an internal circulation positioning hole II; 4.2, upper bracket locating piece; 4.3, middle bracket locating piece; 4.4; a lower bracket positioning piece; 4.5, sleeve positioning piece; 4.6, positioning holes II; 4.7, rolling element chain support; 4.8, a rod groove;
5. an external circulation; 5.1, an internal circulation positioning hole III; 5.2, oil passage hole I; 5.3, rolling element chain cavity; 5.4, positioning holes III; 5.5, a clamping tenon groove;
6. a dust cover; 6.1, an oil filling hole; 6.2, positioning holes six;
7. a sleeve; 7.1, a positioning piece;
8. an upper bracket; 9. a middle bracket; 10. a lower bracket;
11. a dust-proof strip; 11.1, a dustproof strip is arranged on the upper part; 11.2, lower dustproof strips; 11.3, long rod; 11.4, clamping tenons;
12. a lubricating oil box; 12.1, oil passage holes III; 12.2, positioning holes; 12.3, positioning grooves;
13. a lubricant cover; 13.1, oil passage hole II; 13.2, positioning holes IV; 13.3, positioning the bulge;
14. an oil guiding element; 14.1, an oil guide piece is arranged on the upper part; 14.2, lower oil guide.
Detailed Description
The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making clear and defining the scope of the present invention.
As shown in fig. 1-11, the present invention provides a linear guide rail, which comprises a sliding block 1, a guide rail 2, rolling bodies, a rolling body chain 3, two inner loops 4, two outer loops 5, a lubricating piece and two dust covers 6, wherein the sliding block 1 is arranged on the guide rail 2 in a rolling way through the rolling body chain 3 and the rolling bodies arranged in the sliding block, the inner loops 4 are respectively and fixedly arranged at the left end and the right end of the sliding block 1, the rolling body chain 3 is inserted into a circulating roller path formed between the sliding block 1 and the guide rail 2 through the inner loops 4, the outer ends of the inner loops 4 are fixedly provided with the outer loops 5, the outer ends of the outer loops 5 at the left end are fixedly provided with the dust covers 6, the outer ends of the outer loops 5 at the right end are fixedly provided with the lubricating piece, and the outer ends of the lubricating piece are fixedly provided with the dust covers 6.
The upper, middle and lower parts between the sliding block 1 and the guide rail 2 are respectively fixed with an upper bracket 8, a middle bracket 9 and a lower bracket 10, an upper dustproof strip 11.1 is arranged between the upper bracket 8 and the guide rail 2, a lower dustproof strip 11.2 is arranged between the bottom of the lower bracket 10 and two sides of the guide rail 2, two ends of the upper dustproof strip 11.1 and the lower dustproof strip 11.2 are fixedly connected with an inner circulation 4 and an outer circulation 5 mortise-tenon-mortise structure, and a rolling body chain 3 is arranged between the sliding block 1 and the guide rail 2 and is positioned in a circulation raceway formed between the middle bracket 9 and the upper bracket 8 and the lower bracket 10 respectively.
The upper dustproof strip 11.1 and the lower dustproof strip 11.2 comprise a long rod 11.3 and a clamping tenon 11.4, the clamping tenon 11.4 is fixed at two ends of the long rod 11.3, the clamping tenon 11.4 is a convex head, one convex head at one end is a big head, and the other convex head at the other end is a small head;
the position of the upper bracket 8, which is clamped with the upper dustproof strip 11.1, is provided with a long rod groove, and the position of the lower bracket 9, which is clamped with the lower dustproof strip 11.2, is provided with a long rod groove.
The sliding block is characterized in that an inner circulation positioning hole I1.1 is formed in the upper middle of the sliding block 1, a sleeve through hole 1.2 is formed in the lower portion of the sliding block, positioning holes I1.3 are formed in the two sides of the lower portion of the sliding block, a sleeve 7 is installed in the sleeve through hole 1.2, and positioning pieces 7.1 are arranged at the two ends of the sleeve 7.
An inner circulation positioning hole II 4.1 is formed in the upper part of the inner circulation 4, an upper bracket positioning piece 4.2, a middle bracket positioning piece 4.3 and a lower bracket positioning piece 4.4 are respectively arranged near the upper part, the middle part and the lower part of the inner circulation 4, sleeve positioning pieces 4.5 are arranged on two sides of the lower part, a positioning hole II 4.6 is formed in the outermost side of the lower part, a rolling body chain supporting piece 4.7 is arranged on one side, close to the outer circulation 5, of the inner circulation 4, and a rod groove 4.8 is formed in the position, matched with the upper dustproof strip 11.1 and the lower dustproof strip 11.2, of the inner circulation 4;
the two ends of the upper bracket 8, the middle bracket 9 and the lower bracket 10 are fixedly connected with the inner circulation 4 at the two ends of the upper bracket positioning piece 4.2, the middle bracket positioning piece 4.3 and the lower bracket positioning piece 4.4 in sequence through the tenon-and-mortise structure, the positioning piece 7.1 at the two ends of the sleeve 7 is fixedly connected with the inner circulation 4 at the two ends of the sleeve through the sleeve positioning piece 4.5 tenon-and-mortise structure, the rolling body chain 3 is sleeved on the rolling body chain supporting piece 4.7, and the long rods 11.3 of the upper dustproof strip 11.1 and the lower dustproof strip 11.2 are clamped in the rod groove 4.8.
The outer loop 5 upper portion both sides are provided with inner loop locating hole three 5.1, and upper portion central point puts and is provided with oil duct hole one 5.2, and the lower part is provided with rolling element chain cavity 5.3, and lower part both sides are provided with locating hole three 5.4, and outer loop 5 is provided with the joint groove 5.5 with the position that the both ends cooperation of last dustproof strip 11.1, lower dustproof strip 11.2 set up, and the joint 11.4 block of last dustproof strip 11.1, lower dustproof strip 11.2 is in joint groove 5.5.
The lubricating piece comprises a lubricating oil box 12 and a lubricating oil cover 13, wherein the lubricating oil box 12 is fixedly connected with the lubricating oil cover 13 to form a closed lubricating cavity, and an oil guide element 14 is arranged in the lubricating cavity;
the center of the upper part of the lubricating oil cover 13 is provided with an oil passage hole II 13.1, the lower part of the lubricating oil cover is provided with a positioning hole IV 13.2, and one side close to the lubricating oil box 13 is provided with a positioning bulge 13.3;
the center of the upper part of the lubricating oil box 12 is provided with an oil passage hole III 12.1, the lower part of the lubricating oil box is provided with a positioning hole V12.2 on the left, and the lubricating oil box 12 is provided with a positioning groove 12.3 matched with the positioning protrusion 13.4;
the oil guiding element 14 is of a three-dimensional structure matched with the lubrication cavity, and comprises an upper oil guiding element 14.1 and a lower oil guiding element 14.2, wherein the upper oil guiding element 14.1 and the lower oil guiding element 14.2 are connected up and down, the middle part of the upper oil guiding element 14.1 is respectively folded into 90 degrees with the two end parts, and the oil guiding element 14 is made of wool felt or polymer materials.
The upper middle part of the dust cover 6 is provided with an oil filling hole 6.1, two sides of the lower part are provided with positioning holes six 6.2, and lubricating oil enters a circulating roller path formed between the sliding block 1 and the guide rail 2 through the oil filling hole 6.1, the oil passage hole III 12.1, the oil passage hole II 13.1 and the oil passage hole I5.2.
The sliding block 1 is sequentially inserted into an inner circulation positioning hole III 5.1, an inner circulation positioning hole II 4.1 and an inner circulation positioning hole I1.1 from outside to inside through bolts, and the sliding block 1 is sequentially inserted into a positioning hole six 6.2, a positioning hole five 12.2, a positioning hole four 13.2, a positioning hole III 5.4, a positioning hole II 4.6 and a positioning hole I1.3 from outside to inside through bolts to enable the sliding block 1, the inner circulation 4, the outer circulation 5, the lubricating oil cover 13, the lubricating oil box 12 and the dust cover 6 to be fixedly connected in pairs.
The rolling body chains 3 are formed by connecting spaced rolling body cavities 3.1 to form an open type elliptical ring structure, the rolling body cavities 3.1 are cavities matched with rolling bodies, and the rolling bodies are arranged in the rolling body cavities 3.1 in a rolling way.
The working principle and the process of the invention.
When the linear guide rail works, the sliding block 1 circularly slides on the guide rail 2 through rolling bodies arranged in the rolling body chain 3. Before working, the lubricating oil cavity in the lubricating piece is filled with lubricating oil through the oil filling hole 6.1 and the oil passage hole III 12.1, and the lubricating oil enters a circulating track formed between the sliding block 1 and the guide rail 2 through the oil passage hole II 13.1 and the oil passage hole I5.2 to lubricate the rolling body chain 3 and the rolling body. According to different positions of the linear guide rail, the lubricating oil is guided into the oil passage hole II 13.1 through the oil guide element 14 in the lubricating oil cavity, and then enters the circulating track formed between the sliding block 1 and the guide rail 2 through the oil passage hole I5.2 through the oil passage hole II 13.1 to lubricate the rolling body chain 3 and the rolling body, so that the sliding block 1 slides on the guide rail 2 more smoothly for a long time.
Because the rolling bodies are arranged in the rolling body chain 3, the rolling body chain 3 is formed by connecting the rolling body cavities 3.1 at intervals to form an open type elliptical ring-shaped structure, the rolling body cavities 3.1 are cavities matched with the rolling bodies, and the rolling bodies are arranged in the rolling body cavities 3.1 in a rolling way. The rolling bodies are mutually separated through the rolling body chain 3, so that the rolling bodies are uniformly arranged at intervals in the rolling body chain 3 to perform circulating motion when working. The rolling bodies are evenly spaced by the rolling body chains 3, so that the rolling bodies can run more stably when working. When the rolling bodies do circular motion, mutual friction does not exist between every two rolling bodies, lubricating oil stored between the rolling bodies and the rolling body chain 3 can be applied to the surfaces of the rolling bodies along with the rotation of the rolling bodies, so that a layer of oil film is always kept on the surfaces of the rolling bodies for lubrication, the mutual friction and collision between the rolling bodies and the rolling body chain 3 are avoided, the damage of rolling noise between the rolling bodies and the rolling body chain 3 and the impact force generated by the mutual collision to the rolling bodies is reduced, the running speed is improved, the lubrication time maintainability is long, and the long-time maintenance-free performance is realized, and the maintenance cost is reduced.
The inner circulation 4 and the outer sequence 5 enable the rolling element chain 3 to move cyclically in the circulation raceways.
The inner loop 4 at sleeve pipe 7 both ends and both ends pass through mortise and tenon structure fixed connection, and upper bracket 8, well support 9, lower carriage 10 both ends respectively and pass through mortise and tenon structure fixed connection with the inner loop 4 at both ends, and mortise and tenon structure is fixed firm, and is reliable and stable, can restrict the twisting of each direction between sleeve pipe 7 and the inner loop 4 effectively, and sleeve pipe 7 has played the effect of location and support. The inner circulation 4 at the left end and the right end of the sliding block 1 plays a role in positioning through the sleeve 7, and plays a role in supporting through the upper bracket 8, the middle bracket 9 and the lower bracket 10, so that the whole linear guide rail is compact in structure and high in stability.
The lubricating oil box 12 is fixedly connected with the lubricating oil cover 13 to form a closed lubricating cavity, and an oil guide element 14 is arranged in the lubricating cavity. The oil guiding element 14 is of a three-dimensional structure matched with the lubricating cavity, and comprises an upper oil guiding element 14.1 and a lower oil guiding element 14.2, wherein the upper oil guiding element 14.1 is connected with the lower oil guiding element 14.2 up and down, the middle part of the upper oil guiding element 14.1 is respectively folded into 90 degrees with the two end parts, and the oil guiding element 14 is made of wool felt or polymer materials. The linear guide rail 2 is placed in any way, oil in the lubricating cavity can be sucked into the oil passage holes II 13.1 through the oil guide element 14 and sent between the sliding block 1 and the working surface of the guide rail 2, even if the lubricating oil is only used in the lower part of the lubricating oil cavity, the lubricating oil can be guided into the upper part of the oil guide 14 through the bottommost part of the oil guide element 14 by the oil guide element 14, and the wool felt or polymer material has good oil absorption. The middle part is provided with oil filler point 6.1 on the shield 6, makes things convenient for the oiling.
An upper dustproof strip 11.1 is arranged between the upper bracket 8 and the guide rail 2, and a lower dustproof strip 11.2 is arranged between the bottom of the lower bracket 9 and the two sides of the guide rail 2. The arrangement of the upper dustproof strip 11.1 and the lower dustproof strip 11.2 ensures that when the linear guide rail works and the sliding block 1 does not cover the guide rail 2, tiny impurity particles are prevented from entering the gap of the guide rail to influence the normal operation of the linear guide rail.
The long rods 11.3 of the upper dustproof strip 11.1 and the lower dustproof strip 11.2 are fixedly connected with the upper bracket 8 and the lower bracket 10 through long rod grooves, and the two end parts of the upper dustproof strip 11.1 and the lower dustproof strip 11.2 are respectively fixedly connected with the inner circulation 4 and the outer circulation 5 mortise and tenon structures through rod grooves 4.8 and clamping mortise grooves 5.5. The mortise and tenon structure ensures that the dustproof strip 11 is firmly fixed with the upper bracket 8, the lower bracket 10, the inner circulation 4 and the outer circulation 5, and is accurate in positioning and convenient to install.
The upper dustproof strip 11.1 and the lower dustproof strip 11.2 comprise a long rod 11.3 and a clamping tenon 11.4, the clamping tenon 11.4 is fixed at two ends of the long rod 11.3, the clamping tenon 11.4 is a protruding head, the protruding head at one end is a big head, and the protruding head at the other end is a small head. The dustproof strip 11 is relatively small compared with the whole linear guide rail, and the big and small head structure of the dustproof strip 11 is beneficial to the correct assembly of the dustproof strip 11, so that the dustproof strip 11 can be prevented from being reworked due to assembly dislocation during assembly.
The invention has the beneficial effects of.
1. In the linear guide rail, as the rolling bodies are arranged in the rolling body chain 3, the rolling bodies are uniformly spaced by the rolling body chain 3, so that the rolling bodies can run more stably when working; the rolling elements and the rolling elements are not rubbed and collided with each other, the rolling noise between the rolling elements and the rolling element chain 3 and the damage of impact force generated by the collision to the rolling elements are reduced, the running speed is improved, the lubrication time is long, and therefore long-time maintenance-free is realized, and the maintenance cost is reduced.
2. According to the linear guide rail, the two ends of the sleeve 7 are fixedly connected with the inner loops 4 at the two ends of the sleeve through the mortise and tenon structures, the two ends of the upper bracket 8, the middle bracket 9 and the lower bracket 10 are respectively fixedly connected with the inner loops 4 at the two ends of the sleeve through the mortise and tenon structures, the mortise and tenon structures are fixedly firm, the linear guide rail is stable and reliable, the twisting of the sleeve 7 and the inner loops 4 in all directions can be effectively limited, and the sleeve 7 plays roles in positioning and supporting. The inner circulation 4 at the left end and the right end of the sliding block 1 plays a role in positioning through the sleeve 7, and plays a role in supporting through the upper bracket 8, the middle bracket 9 and the lower bracket 10, so that the whole linear guide rail is compact in structure and high in stability.
3. According to the linear guide rail, the oil guide element 14 is of a three-dimensional structure matched with the lubricating cavity, and the oil guide element 14 is made of wool felt or high polymer materials. The linear guide rail 2 is placed in any way, oil in the lubrication cavity can be sucked into the oil passage holes II 13.1 through the oil guide element 14 and fed between the sliding block 1 and the working surface of the guide rail 2, and even if the lubricating oil is only used in the lower part of the lubrication oil cavity, the oil guide element 14 can guide the lubricating oil into the upper part of the oil guide element 14 through the bottommost part of the oil guide element 14, so that the wool felt and the high polymer material have good oil absorption. The middle part is provided with oil filler point 6.1 on the shield 6, makes things convenient for the oiling.
4. The arrangement of the upper dustproof strip 11.1 and the lower dustproof strip 11.2 in the linear guide rail ensures that tiny impurity particles are prevented from entering gaps of the guide rail to influence the normal operation of the linear guide rail when the linear guide rail works. The big-and-small-head structure of the dustproof strip 11 is beneficial to the correct assembly of the dustproof strip 11, so that the dustproof strip 11 can prevent the reworking caused by the assembly dislocation during the assembly.
5. According to the linear guide rail, the upper dustproof strip 11.1 and the lower dustproof strip 11.2, the upper bracket 8, the lower bracket 10, the inner circulation 4 and the outer circulation 5 are fixed by adopting mortise and tenon structures, so that the linear guide rail is firm in fixation, accurate in positioning and convenient to install.
6. The linear guide rail disclosed by the invention has the advantages of compact and stable structure, reasonable design, stable running of the rolling bodies, high running speed and long lubrication time retention, so that long-time maintenance-free is realized, and the maintenance cost is reduced. The lubricating property between the sliding block 1 and the guide rail 2 is good, the arrangement of the oil guide element 14 structure can realize good lubrication no matter how the linear guide rail is arranged, the big end and small end of the dustproof strip 11 is convenient to install correctly, and tiny impurity particles are prevented from entering the gap of the guide rail 2 to influence the normal operation of the linear guide rail.
The foregoing is merely illustrative of specific embodiments of the present invention, and the scope of the invention is not limited thereto, but any changes or substitutions that do not undergo the inventive effort should be construed as falling within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope defined by the claims.
Claims (6)
1. The linear guide rail is characterized by comprising a sliding block (1), a guide rail (2), rolling bodies, a rolling body chain (3), two inner circulators (4), two outer circulators (5), a lubricating piece and two dust covers (6), wherein the sliding block (1) is arranged on the guide rail (2) in a rolling way through the rolling body chain (3) and the rolling bodies arranged in the sliding block, the inner circulators (4) are respectively fixedly arranged at the left end and the right end of the sliding block (1), the rolling body chain (3) is inserted into a circulating roller path formed between the sliding block (1) and the guide rail (2) through the inner circulators (4), the outer end of the inner circulators (4) is fixedly provided with the outer circulators (5), the outer end of the outer circulators (5) at the left end is fixedly provided with the dust covers (6), the outer end of the outer circulators (5) at the right end is fixedly provided with the lubricating piece, and the outer end of the lubricating piece is fixedly provided with the dust covers (6);
an upper bracket (8), a middle bracket (9) and a lower bracket (10) are respectively fixed on the upper part, the middle part and the lower part between the sliding block (1) and the guide rail (2), an upper dustproof strip (11.1) is arranged between the upper bracket (8) and the guide rail (2), a lower dustproof strip (11.2) is arranged between the bottom of the lower bracket (10) and the two sides of the guide rail (2), the two ends of the upper dustproof strip (11.1) and the lower dustproof strip (11.2) are fixedly connected with a tenon-and-mortise structure of the inner circulator (4) and a tenon-mortise structure of the outer circulator (5), and a rolling body chain (3) is arranged between the sliding block (1) and the guide rail (2) and is positioned in a circulating roller path formed between the middle bracket (9) and the upper bracket (8) and the lower bracket (10) respectively;
the upper dustproof strip (11.1) and the lower dustproof strip (11.2) comprise a long rod (11.3) and a clamping tenon (11.4), the clamping tenon (11.4) is fixed at two ends of the long rod (11.3), the clamping tenon (11.4) is a protruding head, one protruding head at one end is a big head, and the protruding head at the other end is a small head; a long rod groove is formed in the position where the upper bracket (8) is clamped with the upper dustproof strip (11.1), and a long rod groove is formed in the position where the lower bracket (10) is clamped with the lower dustproof strip (11.2);
the sliding block is characterized in that an inner circulation positioning hole I (1.1) is formed in the upper middle of the sliding block (1), a sleeve through hole (1.2) is formed in the lower portion of the sliding block (1), positioning holes I are formed in two sides of the lower portion of the sliding block (1), a sleeve (7) is arranged in the sleeve through hole (1.2), and positioning pieces (7.1) are arranged at two ends of the sleeve (7);
an inner circulation positioning hole II (4.1) is formed in the upper part of the inner circulator (4), an upper bracket positioning piece (4.2), a middle bracket positioning piece (4.3) and a lower bracket positioning piece (4.4) are respectively arranged near the upper part, the middle part and the lower part of the inner circulator (4), sleeve positioning pieces (4.5) are arranged on two sides of the lower part of the inner circulator (4), a positioning hole II (4.6) is formed in the outermost side of the lower part of the inner circulator (4), a rolling body chain supporting piece (4.7) is arranged on one side, close to the outer circulator (5), of the inner circulator (4), and rod grooves (4.8) are formed in the positions, matched with the upper dustproof strips (11.1) and the lower dustproof strips (11.2); the upper bracket (8), well support (9), lower carriage (10) both ends and inner circulator (4) at its both ends loop through upper bracket setting element (4.2), well support setting element (4.3), lower carriage setting element (4.4) mortise and tenon fourth of twelve earthly branches structure fixed connection, sleeve pipe (7) setting element (7.1) at both ends and inner circulator (4) at its both ends pass through sleeve pipe setting element (4.5) mortise and tenon fourth of twelve earthly branches structure fixed connection, rolling element chain (3) cover is on rolling element chain support element (4.7), go up telescopic link (11.1), telescopic link (11.3) block of telescopic link (11.2) down in pole groove (4.8).
2. The linear guide rail according to claim 1, wherein inner circulation positioning holes III (5.1) are formed in two sides of the upper portion of the outer circulator (5), an oil passage hole I (5.2) is formed in the center of the upper portion of the outer circulator (5), a rolling body chain cavity (5.3) is formed in the lower portion of the outer circulator (5), positioning holes III (5.4) are formed in two sides of the lower portion of the outer circulator (5), a clamping tenon groove (5.5) is formed in positions, matched with two ends of the upper dustproof strip (11.1) and the lower dustproof strip (11.2), of the outer circulator (5), and clamping tenons (11.4) of the upper dustproof strip (11.1) and the lower dustproof strip (11.2) are clamped in the clamping tenon groove (5.5).
3. A linear guide rail according to claim 1, characterized in that the lubricant comprises a lubricant box (12) and a lubricant cover (13), the lubricant box (12) and the lubricant cover (13) are fixedly connected to form a closed lubricant cavity, and an oil guiding element (14) is arranged in the lubricant cavity; the center of the upper part of the lubricating oil cover (13) is provided with a second oil passage hole (13.1), the lower part of the lubricating oil cover (13) is provided with a fourth positioning hole (13.2), and one side, close to the lubricating oil box (12), of the lubricating oil cover is provided with a positioning bulge (13.3); the center of the upper part of the lubricating oil box (12) is provided with an oil passage hole III (12.1), the lower part of the lubricating oil box (12) is provided with a positioning hole V (12.2), and the lubricating oil box (12) is provided with a positioning groove (12.3) matched with the positioning protrusion (13.3);
the oil guide element (14) is of a three-dimensional structure matched with the lubricating cavity, and comprises an upper oil guide piece (14.1) and a lower oil guide piece (14.2), wherein the upper oil guide piece (14.1) and the lower oil guide piece (14.2) are connected up and down, the middle part of the upper oil guide piece (14.1) is respectively folded into 90 degrees with the two end parts, and the oil guide element (14) is made of wool felt or polymer materials.
4. A linear guide rail according to claim 3, wherein the upper middle part of the dust cover (6) is provided with oil injection holes (6.1), and two sides of the lower part of the dust cover (6) are provided with positioning holes six (6.2), and lubricating oil enters the circulating roller path formed between the sliding block (1) and the guide rail (2) through the oil injection holes (6.1), the oil passage holes three (12.1), the oil passage holes two (13.1) and the oil passage holes one (5.2).
5. The linear guide rail according to claim 4, wherein the sliding block (1) is sequentially inserted into an inner circulation positioning hole III (5.1), an inner circulation positioning hole II (4.1) and an inner circulation positioning hole I (1.1) from outside to inside through bolts, the sliding block (1) is fixedly connected with the inner circulation device (4) through bolts, and the sliding block (1) is sequentially inserted into a positioning hole VI (6.2), a positioning hole V (12.2), a positioning hole IV (13.2), a positioning hole III (5.4), a positioning hole II (4.6) and a positioning hole I (1.3) from outside to inside, so that the sliding block (1), the inner circulation device (4), the outer circulation device (5), the lubricating oil cover (13), the lubricating oil box (12) and the dustproof cover (6) are fixedly connected in pairs.
6. A linear guide rail according to claim 1, characterized in that the rolling body chains (3) are connected with each other for the spaced rolling body cavities (3.1) to form an open oval ring structure, the rolling body cavities (3.1) are cavities matched with the rolling bodies, and the rolling bodies are arranged in the rolling body cavities (3.1) in a rolling way.
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| CN201810879281.0A CN108662017B (en) | 2018-08-03 | 2018-08-03 | Linear guide rail |
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| CN201810879281.0A CN108662017B (en) | 2018-08-03 | 2018-08-03 | Linear guide rail |
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| CN108662017B true CN108662017B (en) | 2023-12-29 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP6494692B2 (en) * | 2017-05-31 | 2019-04-03 | Thk株式会社 | Exercise guidance device |
| CN109185335A (en) * | 2018-11-09 | 2019-01-11 | 浙江凯晨工贸有限公司 | A kind of linear guide |
| CN111156250B (en) * | 2019-12-30 | 2021-05-04 | 宁波莱盟机器人有限公司 | Linear guide rail dustproof structure for discharging foreign matters at edge of countersunk hole on top surface of guide rail |
| CN113236726B (en) * | 2021-05-08 | 2022-04-08 | 丽水市杰祥科技有限公司 | Linear module and using method thereof |
| CN117072853A (en) * | 2023-10-18 | 2023-11-17 | 山东台稳精密机械有限公司 | Self-lubricating oil storage box and linear guide rail |
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