CN209725137U

CN209725137U - A kind of novel ball screw device

Info

Publication number: CN209725137U
Application number: CN201920137868.4U
Authority: CN
Inventors: 张贺兴
Original assignee: Shenzhen Rui Jian Electronics Co Ltd
Current assignee: Shenzhen Rui Jian Electronics Co Ltd
Priority date: 2019-01-25
Filing date: 2019-01-25
Publication date: 2019-12-03
Anticipated expiration: 2029-01-25

Abstract

The utility model discloses a kind of novel ball screw device, including motor, screw rod, nut, slide, latch assembly；Mounting hole is equipped in the middle part of the slide, nut is coaxially embedded in mounting hole；The screw rod passes through mounting hole and is spirally connected with nut；The slide top is equipped with first through hole, and nut side position corresponding with first through hole is equipped with pin hole；Nut for being fixedly connected by the latch assembly through first through hole, pin hole with slide；The slide is additionally provided with several oil storage tanks, several runners, and several runners are for being connected to several oil storage tanks to be passed through lubricating oil；The motor is for driving screw rod to drive slide sliding through nut.The utility model assembling aspect is convenient for lubrication, is compact-sized, saves cost, is practical.

Description

A kind of novel ball screw device

Technical field

The utility model relates to ball screw technical fields, more particularly to a kind of novel ball screw device.

Background technique

Ball-screw is actuated element most-often used on machine tool and precision machinery, and major function is will to rotate fortune Turn changes linear movement into, or torque is converted into axial repeated action power, while having both high-precision, invertibity and efficient Feature.Due to the frictional resistance with very little, ball-screw is widely used in various industrial equipments and precision instrument.

Currently, ball screw device in the market has the following disadvantages mostly:

1) ball screw installation is complex, needs certain machining accuracy and the technician of the ability of tune-up to install, installs Low efficiency；

2) nut seat connection has been needed between slide and screw rod, and needs then to carry out through several screws by flange arrangement It locks, when narrow installation space carries out locking operation to screw, easily leads to screw hole position inaccurate, need to be repeated Debugging；

3) it needs to be installed by flange arrangement plus several screws, causes whole device occupied space larger, having In the assembling space of limit, the actual internal mobile space of each part can be reduced, the operating of whole device is directly affected；

4) part substantially it is built-in in the device, to part carry out it is oily very inconvenient；And ball screw makes for a long time With, if lubricating oil can not be added, it will lead to components and be easy to produce hard friction, and screw rod and nut contact surface is made to generate scar, Lead to problems such as walking accuracy error, stability inhomogenous；

5) when production installation, the components needed are more, lead to that whole device volume is larger, clumsy, practicability is low.

In summary, there is inconvenience in practice, so it is necessary to be improved in the ball screw.

Utility model content

The purpose of the utility model is to provide a kind of novel ball screw device, device assembling aspect, convenient for lubrication, It is compact-sized, save cost, practical.

To achieve the above object, using following technical scheme:

A kind of novel ball screw device, including motor, screw rod, nut, slide, latch assembly；In the middle part of the slide Equipped with mounting hole, nut is coaxially embedded in mounting hole；The screw rod passes through mounting hole and is spirally connected with nut；The slide top Equipped with first through hole, nut side position corresponding with first through hole is equipped with pin hole；The latch assembly is used for through first Nut is fixedly connected by through-hole, pin hole with slide；The slide is additionally provided with several oil storage tanks, several runners, and several runners are used In several oil storage tanks of connection to be passed through lubricating oil；The motor is for driving screw rod to drive slide sliding through nut.

Further, the slide includes slide ontology, at least an end cap；The end cap and slide body end are detachable Formula connection, and end cap includes end cap ontology, the upper semi-circle cylinder with the first arc notch, the lower half with the second arc notch Cylindrical body, clamping mechanism；The second through-hole is offered in the middle part of the end cap ontology, upper semi-circle cylinder is embedded in lower half cylindrical body Second through-hole；The upper semi-circle cylinder and lower half cylindrical body engage to form the intermediate cylinder with third through-hole through clamping mechanism Body, and the third through-hole is coaxial with mounting hole and is connected to.

Further, slide ontology side is equipped with oil filler point, and end cap body upper part is equipped with the be connected to oil filler point One oil storage tank；The external circumferential of the upper semi-circle cylinder is equipped with the first arced flow path being connected to the first oil storage tank, upper half cylinder The both ends of body are respectively equipped with the first chute, and first chute one end is connected to the first arced flow path, and the other end is through to first Arc notch；The external circumferential of the lower half cylindrical body is equipped with the second arced flow path corresponding with the first arced flow path, lower half circle Cylinder both ends are respectively equipped with the second chute, and second chute one end is connected to the second arced flow path, and the other end is through to second Arc notch；First arced flow path engages that be formed can fuel feeding with the second arced flow path through upper semi-circle cylinder with lower half cylindrical body The circular flow channel of circulation；The first-class slot of first chute of the upper semi-circle cylinder and lower half cylindrical body is formed to be passed to for oil stream The third flow channel of third through-hole, the second chute of upper semi-circle cylinder are formed with the second slot of lower half cylindrical body and are passed to for oil stream 4th runner of third through-hole.

Further, the end cap is set as two, respectively with slide ontology both ends detachable connection；The slide sheet Two exterior bottom of body is respectively equipped with the first sliding groove for accommodating several balls along its length, and several balls are placed in first sliding groove It is interior；Two exterior bottom of end cap corresponds to first sliding groove and is respectively equipped with a protrusion, for ball to be limited in first sliding groove.

Further, the lower part both ends of the end cap ontology are respectively equipped with the second oil storage being connected to the second arced flow path The other end of slot, every one second oil storage tank connects one the 5th runner；The other end of 5th runner is through to respective protrusions End is connected to first sliding groove.

Further, the latch assembly includes latch body, packing screw；The latch body top is equipped with spiral Line, packing screw are spirally connected through spiral lamination and latch body.

Further, the clamping mechanism includes boss and the groove that can accommodate boss；The both ends of the upper semi-circle cylinder It is respectively equipped with a boss, a groove, the both ends of lower half cylindrical body are respectively corresponded equipped with a groove, a boss；The upper half cylinder Body sticks into groove through boss with lower half cylindrical body and is connected together.

Further, the novel ball screw device further includes pedestal, and pedestal includes base body, upper cover body；Institute Base body cross section is stated in convex structure, convex lower tip two sides are equipped with several screws, for locking pedestal In external equipment；The base body is equipped with the first cavity, and screw rod is built in the first cavity along base body length direction；It is described First cavity, two inside bottom is respectively equipped with first rail groove along its length；The slide is through several balls along the first guide rail Slot sliding；The U-shaped construction in top cross section of the slide, upper cover body passes through at the top of the U-shaped horizontal end of slide, for limiting slide In the first cavity.

Further, the slide further includes limited cover；End top is erected with U-shaped the two of slide respectively in the two sides of the limited cover Portion's detachable connection, limited cover is for upper cover body to be limited between slide top and limited cover.

Further, the novel ball screw device further includes two steel bars；The slide uses aluminium material, and every 1 the A steel bar is installed on the surface of one guide-track groove, is rolled for carrying ball.

Using the above scheme, the beneficial effects of the utility model are:

1) apparatus structure is simple, compact stabilization, easy to assembly, high lubricating effect；

2) device is easy for installation, need to only insert the nut into mounting hole, then be fixed with latch assembly, reduces flange The use of the components such as structure reduces assembly error rate, effectively shortens built-up time without proofreading debugging；

3) nut is embedded in slide ontology, can reduce slide machined surface, reduces slide cost, and without flange arrangement, reduces Purchase cost of parts；

4) slide and nut are integral type mounting structure, effectively reduce apparatus structure volume, room for promotion effective rate of utilization；

5) latch body and packing screw are in integral mechanism, when effectivelying prevent latch body that can not extract or extract pair Product structure damages；

6) circular flow channel integral structure is used, oil circuit is allowed to communicate, solves what more part oil circuits at present were independently difficult to maintain Problem；

7) multiple oil storage tanks are equipped with, oil reserve is sufficient, reduces oil-filled frequency；

8) pedestal cross section is in convex structure, is fixed on external equipment convenient for directly locking device, avoids locking When need to dismantle pedestal；

9) slide material is aluminium, convenient for production, and whole self weight is effectively reduced, and improves production ratio for self-manufactured content.

Detailed description of the invention

Fig. 1 is the perspective view of the utility model；

Fig. 2 is the explosive view of the utility model；

Fig. 3 is the explosive view of the slide of the utility model, upper cover body, limited cover；

Fig. 4 is the perspective view of the slide of the utility model；

Fig. 5 is the partial cutaway perspective view of the slide of the utility model, end cap；

Fig. 6 is the explosive view of the slide of the utility model, latch assembly, nut；

Fig. 7 is the end cap perspective view of the utility model；

Fig. 8 is the end cap explosive view of the utility model；

Fig. 9 is the end cap diagrammatic cross-section of the utility model；

Wherein, description of drawing identification:

1-motor；2-pedestals；

3-screw rods；4-latch assemblies；

5-slides；6-nuts；

21-base bodies；22-upper cover bodies；

23-first rail grooves；41-latch bodies；

42-packing screws；51-first sliding grooves；

52-first through hole；53-slide ontologies；

54-end caps；55-clamping mechanisms；

56-oil filler points；57-limited covers；

321-pin holes；541-end cap ontologies；

542-upper semi-circle cylinders；543-lower half cylindrical bodies；

544-protrusions；551-boss；

552-grooves；5411-the first oil storage tank；

5412-the second oil storage tank；5413-the five runner；

5421-the first arced flow path；5422-the first chute；

5423-circular flow channels；5431-the second arced flow path；

5432-the second chute；5433-third flow channels；

5434-the four runner.

Specific embodiment

Below in conjunction with the drawings and specific embodiments, the utility model is described in detail.

Shown in 9, the utility model provides a kind of novel ball screw device, including motor 1, screw rod 3, Nut 6, slide 5, latch assembly 4；Mounting hole is equipped in the middle part of the slide 5, nut 6 is coaxially embedded in mounting hole；The silk Bar 3 passes through mounting hole and is spirally connected with nut 6；First through hole 52,6 side of nut and first through hole 52 are equipped at the top of the slide 5 Corresponding position is equipped with pin hole 321；The latch assembly 4 through first through hole 52, pin hole 321 for by nut 6 and sliding Seat 5 is fixedly connected；The slide 5 is additionally provided with several oil storage tanks, several runners, and several runners are for being connected to several oil storage tanks with logical Enter lubricating oil；The motor 1 is for driving screw rod 3 to drive slide 5 to slide through nut 6.

Wherein, the slide 5 includes slide ontology 53, at least an end cap 54；The end cap 54 and 53 end of slide ontology Detachable connection, and end cap 54 includes end cap ontology 541, the upper semi-circle cylinder 542 with the first arc notch, has second The lower half cylindrical body 543 of arc notch, clamping mechanism 55；The second through-hole, upper half cylinder are offered in the middle part of the end cap ontology 541 Body 542 and lower half cylindrical body 543 are embedded in the second through-hole；The upper semi-circle cylinder 542 is with lower half cylindrical body 543 through engaging machine The engaging of structure 55 forms the intermediate cylindrical body with third through-hole, and the third through-hole is coaxial with mounting hole and is connected to.

53 side of slide ontology is equipped with oil filler point 56, and 541 top of end cap ontology is equipped with the be connected to oil filler point 56 One oil storage tank 5411；The external circumferential of the upper semi-circle cylinder 542 is equipped with the first arc stream being connected to the first oil storage tank 5411 Road 5421, the both ends of upper semi-circle cylinder 542 are respectively equipped with the first chute 5422, and 5422 one end of the first chute and the first arc Runner 5421 is connected to, and the other end is through to the first arc notch；The external circumferential of the lower half cylindrical body 543 is equipped with and the first arc Corresponding second arced flow path 5431 of shape runner 5421,543 both ends of lower half cylindrical body are respectively equipped with the second chute 5432, and Two chutes, 5432 one end is connected to the second arced flow path 5431, and the other end is through to the second arc notch；The first arc stream Road 5421 engages the circle for being formed and being led to for oil stream with the second arced flow path 5431 through upper semi-circle cylinder 542 with lower half cylindrical body 543 Shape runner 5423；First chute 5422 of the first chute 5422 and lower half cylindrical body of the upper semi-circle cylinder is formed for oil stream Pass to the third flow channel 5433 of third through-hole, the second chute 5432 of the second chute 5432 and lower half cylindrical body of upper semi-circle cylinder Form the 4th runner 5434 that third through-hole is passed to for oil stream.

The end cap 54 is set as two, respectively with 53 both ends detachable connection of slide ontology；The slide ontology 53 Two exterior bottoms are respectively equipped with the first sliding groove 51 for accommodating several balls along its length, and several balls are placed in first sliding groove 51 It is interior；54 liang of exterior bottoms of the end cap correspond to first sliding groove 51 and are respectively equipped with a protrusion 544, sliding for ball to be limited in first In slot 51；The lower part both ends of the end cap ontology 541 are respectively equipped with the second oil storage tank being connected to the second arced flow path 5431 5412, the other end of every one second oil storage tank 5412 connects one the 5th runner 5413；The other end of 5th runner 5413 passes through It wears to the end of respective protrusions 544, is connected to first sliding groove 51；The latch assembly 4 includes latch body 41, packing screw 42； 41 top of latch body is equipped with spiral lamination, and packing screw 42 is spirally connected through spiral lamination and latch body 41.

The clamping mechanism 55 includes boss 551 and the groove 552 that can accommodate boss 551；The upper semi-circle cylinder 542 Both ends be respectively equipped with a boss 551, a groove 552, the both ends of lower half cylindrical body 543 are respectively corresponded equipped with a groove 552, one Boss 551；The upper semi-circle cylinder 542 sticks into groove 552 through boss 551 with lower half cylindrical body 543 and is connected together；It is described new The ball screw device of type further includes pedestal 2, and pedestal 2 includes base body 21, upper cover body 22；21 cross section of base body In convex structure, convex lower tip two sides are equipped with several screws, for pedestal 2 to be attached to external equipment；It is described Base body 21 is equipped with the first cavity, and screw rod 3 is built in the first cavity along 21 length direction of base body；First cavity two Inside bottom is respectively equipped with first rail groove 23 along its length；The slide 5 is sliding along first rail groove 23 through several balls It is dynamic；The U-shaped construction in top cross section of the slide 5, upper cover body 22 are passed through at the top of the U-shaped horizontal end of slide 5, are used for slide 5 It is limited in the first cavity；The slide 5 further includes limited cover 57；The two sides of the limited cover 57 respectively with slide 5 U-shaped two Perpendicular end top side detachable formula connection, limited cover 57 are used to for upper cover body 22 being limited between 5 top of slide and limited cover 57；It is described Novel ball screw device further includes two steel bars；The slide 5 uses aluminium material, and the surface of each first rail groove 23 is installed In one steel bar, rolled for carrying ball.

Utility model works principle:

In the present embodiment, when being assembled to 3 device of ball screw, entire nut 6 directly can be fully recessed into slide 5 and pacified In dress hole (nut 6 is placed into certain angle, so that 52 face pin hole 321 of first through hole, nut 6 are placed in slide 5, 5 machined surface of slide can be reduced, seat of honour cost is reduced), then latch body 41 is inserted into pin hole 321 through first through hole 52, This latch body 41 will clamping nut 6 and slide 5 (stable structure), and lock a packing screw again in 41 tail end of latch body 42, latch body 41 can be made not to be detached from nut 6 and slide ontology 51 because of extraneous factor, improve the compact stability of device.

Latch assembly 4 can (packing by packing screw 42 when needing to dismantle device using integral structure Screw 42 and 41 integral structure of latch body by screwing packing screw 42, and then drive latch body 41 to rotate, make bolt It is opposite between ontology 41 and pin hole 321 to loosen, convenient for latch body 41 is extracted；If, can only be by work without packing screw 42 Then tool is extracted directly to punching at the top of latch body 41, be easy to damage device), without tool by bolt sheet Tool causes to damage to device when the extraction of body 41 can effectively prevent latch body 41 that can not extract or extract.

Mounting hole fuel feeding route: oil filler point the 56-the first oil storage tank 5421-third of the 5411-the first arced flow path (the 4th) 5433-mounting hole of runner.

51 fuel feeding route of first sliding groove: oil filler point the 56-the first oil storage tank the 5421-the second arc of the 5411-the first arced flow path 5412-the five 5413-first sliding groove of runner 51 of the 5431-the second oil storage tank of shape runner.

The specific feed lubrication step of the present embodiment are as follows:

1) use is for other fuel feeding tools such as oil gun, and by 56 lube oil injection of oil filler point, lubricating oil passes through pipeline (note Sealing pipeline is connected between oilhole 56 and the first oil storage tank 5411) it flows into the first oil storage tank 5411；

2) lubricating oil in the first oil storage tank 5411 flows down naturally along the first arced flow path 5421, flow to the first arced flow path When 5421 end, shunting can be generated；

3) a part of lubricating oil through third flow channel 5433, the 4th runner 5434 flow to mounting hole (lubricating oil first flow to third Through-hole, third through-hole is coaxial with mounting hole and penetrates through) in, mounting hole is equivalent to an oil storage cabin at this time, can store a large amount of lubrications Oil, screw mandrel 3 lubricate；

4) another part lubricating oil continues to flow down under the effect of gravity through the second arced flow path 5431, flow to the second oil storage tank 5412, using funnel structure, (opening close to 5431 one end of the second arced flow path is greater than the other end to the second oil storage tank 5412 Opening), this throat structure, it is ensured that lubricating oil continues to flow down and will not largely flow out to pollute；

5) lubricating oil in the second oil storage tank 5412 flow to first sliding groove 51 through the 5th runner 5413, for first sliding groove 51 Interior ball lubrication (funnel structure of the second oil storage tank 5412 can ensure that the oil mass of lubricated balls is sufficient), to guarantee slide 5 The fluency of sliding.

The lubricating oil runner design of integral type, allows oil circuit to communicate, and solve that multiple part oil circuits are independently difficult to maintain asks Topic.

The present apparatus is equipped with multiple oil storage tanks, calculates according to sump volume, about two to three months progress oil product supplements.

Slide 5 uses aluminium material, reduces cost, convenient for quantization production, steel bar is inserted in first rail groove 23, convenient for rolling Pearl rolls (aluminium material Lack of support is to support ball to roll) on steel bar.

2 cross section of pedestal is in convex structure, and the convex lower tip two sides of pedestal 2 are equipped with several screws, can be direct Pedestal 2 is attached to external equipment, and (2 cross section of pedestal of conventional ball lead screw device is rectangular configuration mostly, if device is locked It is attached to be fixed on external equipment, device can only be dismantled, device is attached to external equipment from chassis interior or sets outside Standby lock invests on ball screw device, complicated for operation).

The above is only the preferred embodiments of the present utility model only, is not intended to limit the utility model, all practical at this Made any modifications, equivalent replacements, and improvements etc., should be included in the guarantor of the utility model within novel spirit and principle Within the scope of shield.

Claims

1. a kind of novel ball screw device, which is characterized in that including motor, screw rod, nut, slide, latch assembly；It is described Mounting hole is equipped in the middle part of slide, nut is coaxially embedded in mounting hole；The screw rod passes through mounting hole and is spirally connected with nut；It is described Slide top is equipped with first through hole, and nut side position corresponding with first through hole is equipped with pin hole；The latch assembly is used In nut is fixedly connected with slide through first through hole, pin hole；The slide is additionally provided with several oil storage tanks, several runners, if Mainstream road is for being connected to several oil storage tanks to be passed through lubricating oil；The motor is for driving screw rod to drive slide sliding through nut.

2. novel ball screw device according to claim 1, which is characterized in that the slide include slide ontology, An at least end cap；The end cap and slide body end detachable connection, and end cap includes end cap ontology, has the first arc The upper semi-circle cylinder of notch, with the lower half cylindrical body of the second arc notch, clamping mechanism；It is offered in the middle part of the end cap ontology Second through-hole, upper semi-circle cylinder and lower half cylindrical body are embedded in the second through-hole；The upper semi-circle cylinder and lower half cylindrical body pass through Clamping mechanism engages to form the intermediate cylindrical body with third through-hole, and the third through-hole is coaxial with mounting hole and is connected to.

3. novel ball screw device according to claim 2, which is characterized in that slide ontology side is equipped with note Oilhole, end cap body upper part are equipped with the first oil storage tank being connected to oil filler point；The external circumferential of the upper semi-circle cylinder be equipped with First arced flow path of the first oil storage tank connection, the both ends of upper semi-circle cylinder are respectively equipped with the first chute, and the first chute one End is connected to the first arced flow path, and the other end is through to the first arc notch；The external circumferential of the lower half cylindrical body be equipped with Corresponding second arced flow path of first arced flow path, lower half cylindrical body both ends are respectively equipped with the second chute, and the second chute one End is connected to the second arced flow path, and the other end is through to the second arc notch；First arced flow path and the second arced flow path The circular flow channel to be formed and be led to for oil stream is engaged with lower half cylindrical body through upper semi-circle cylinder；First chute of the upper semi-circle cylinder The third flow channel that third through-hole is passed to for oil stream, the second chute of upper semi-circle cylinder are formed with the first-class slot of lower half cylindrical body The 4th runner that third through-hole is passed to for oil stream is formed with the second slot of lower half cylindrical body.

4. novel ball screw device according to claim 3, which is characterized in that the end cap is set as two, point Not with slide ontology both ends detachable connection；If two exterior bottom of slide ontology is respectively equipped with receiving along its length The first sliding groove of dry milling pearl, several balls are placed in first sliding groove；Two exterior bottom of end cap corresponds to first sliding groove and sets respectively There is a protrusion, for ball to be limited in first sliding groove.

5. novel ball screw device according to claim 4, which is characterized in that the lower part both ends of the end cap ontology It is respectively equipped with the second oil storage tank being connected to the second arced flow path, the other end of every one second oil storage tank connects one the 5th runner； The other end of 5th runner is through to the end of respective protrusions, is connected to first sliding groove.

6. novel ball screw device according to claim 1, which is characterized in that the latch assembly includes bolt sheet Body, packing screw；The latch body top is equipped with spiral lamination, and packing screw is spirally connected through spiral lamination and latch body.

7. novel ball screw device according to claim 2, which is characterized in that the clamping mechanism include boss, And the groove of boss can be accommodated；The both ends of the upper semi-circle cylinder are respectively equipped with a boss, a groove, the both ends of lower half cylindrical body It respectively corresponds and is equipped with a groove, a boss；The upper semi-circle cylinder sticks into groove through boss with lower half cylindrical body and is connected together.

8. novel ball screw device according to claim 4, which is characterized in that the novel ball screw device It further include pedestal, pedestal includes base body, upper cover body；The base body cross section is in convex structure, under convex Portion, two sides, top are equipped with several screws, for pedestal to be attached to external equipment；The base body is equipped with the first cavity, convex Font upper end is equipped with opening, and screw rod is built in the first cavity along base body length direction；First cavity, two inside Bottom is respectively equipped with first rail groove along its length；The slide is slided through several balls along first rail groove；The cunning The U-shaped construction in top cross section of seat, upper cover body passes through at the top of the U-shaped horizontal end of slide, for slide to be limited in the first cavity It is interior.

9. novel ball screw device according to claim 8, which is characterized in that the slide further includes limited cover； The two sides of the limited cover are erected end top side detachable formula with U-shaped the two of slide respectively and are connect, and limited cover is for limiting upper cover body Between slide top and limited cover.

10. novel ball screw device according to claim 8, which is characterized in that the novel ball screw dress Setting further includes two steel bars；The slide uses aluminium material, and a steel bar is installed on the surface of each first rail groove, for carrying ball It rolls.