CN112343921A - Sliding seat rolling system with multi-section rolling assembly - Google Patents
Sliding seat rolling system with multi-section rolling assembly Download PDFInfo
- Publication number
- CN112343921A CN112343921A CN202011201496.0A CN202011201496A CN112343921A CN 112343921 A CN112343921 A CN 112343921A CN 202011201496 A CN202011201496 A CN 202011201496A CN 112343921 A CN112343921 A CN 112343921A
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- Prior art keywords
- rolling
- rolling element
- spacing pieces
- spacing
- tensile
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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- 238000005096 rolling process Methods 0.000 title claims abstract description 108
- 125000006850 spacer group Chemical group 0.000 description 12
- 230000000694 effects Effects 0.000 description 3
- 238000001746 injection moulding Methods 0.000 description 3
- 230000004308 accommodation Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000002991 molded plastic Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Images
Classifications
-
- 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
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/30—Parts of ball or roller bearings
- F16C33/37—Loose spacing bodies
- F16C33/3706—Loose spacing bodies with concave surfaces conforming to the shape of the rolling elements, e.g. the spacing bodies are in sliding contact with the rolling elements
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bearings For Parts Moving Linearly (AREA)
Abstract
The invention discloses a sliding seat rolling system with a multi-section type rolling assembly, which comprises a rolling element circulating passage arranged in a sliding seat, a plurality of rolling elements connected in the rolling element circulating passage in a rolling way and a plurality of retainers, wherein the rolling elements are arranged in the rolling element circulating passage; the holder includes: the number of the anti-pulling strips is two and the anti-pulling strips are parallel; the spacing pieces are at least three in number and fixedly connected to the two tensile belts, the two ends of the rolling element positioned in the spacing pieces are limited by the two adjacent spacing pieces, the spacing pieces are provided with a first contact surface and a second contact surface which are in contact with the rolling element, the first contact surface is provided with a first anti-falling surface, and the second contact surface is provided with a second anti-falling surface. The device has simple structure and long service life.
Description
Technical Field
The invention relates to the field of guiding equipment, in particular to a sliding seat rolling system with a multi-section type rolling assembly.
Background
In the field of guide devices, in particular linear motion guides, comprising a linear slide and a slide that moves on the slide; in order to ensure the smoothness of the sliding seat moving on the sliding rail, balls are required to be installed in the sliding seat, so that a rolling element loading passage (loading area) and a rolling element returning passage (non-loading area) are arranged on the sliding seat, and the rolling element loading passage and the rolling element returning passage are connected through a rolling element transition passage arranged on an end cover, so that a rolling element circulating passage is formed. The ball moves in the rolling element circulation passage, and the sliding seat is kept in contact with the linear sliding rail through the ball, so that the friction resistance between the sliding seat and the linear sliding rail is reduced.
In order to prolong the life of rolling elements (such as balls, rollers, etc.), and reduce the collision and friction between the rolling elements and the rolling elements, or between the rolling elements and the sliding seat, it is common to place the rolling elements of the sliding seat in a retainer, and then place the retainer in the rolling element circulation path. The retainer is typically an injection molded plastic strip having a plurality of spaces for mounting the rolling elements.
In the use condition of the existing product, only one retainer is arranged in one rolling element circulation path (the retainer is usually as long as the whole rolling element circulation path), and in the sliding process of the sliding seat along the sliding rail, the rolling element generates pulling force on the retainer, and the gravity of the rolling element causes large stress on the connecting part of the retainer in a load area and a non-load area, so that the retainer is easy to break, and the service life of equipment is influenced.
Disclosure of Invention
In view of the above, there is a need for a sliding seat rolling system with multi-section rolling components, which has a simple structure, is not easily damaged, and has a long service life.
In order to solve the technical problems, the technical scheme of the invention is as follows: a sliding seat rolling system with a multi-section type rolling assembly comprises a rolling element circulating passage arranged in a sliding seat, a plurality of rolling elements connected in a rolling element circulating passage in a rolling way and a plurality of retainers; the holder includes:
the number of the anti-pulling strips is two and the anti-pulling strips are parallel;
the spacing pieces are at least three in number and fixedly connected to the two tensile belts, two adjacent spacing pieces limit two ends of the rolling element positioned in the spacing pieces, each spacing piece is provided with a first contact surface and a second contact surface which are in contact with the rolling element, the first contact surface is provided with a first anti-falling surface, the second contact surface is provided with a second anti-falling surface, the first anti-falling surface, the second anti-falling surface and the tensile belts on the same spacing piece are respectively positioned on different sides of the spacing piece, and in the two adjacent spacing pieces, the first anti-falling surface on one spacing piece and the second anti-falling surface on the other spacing piece are oppositely arranged and limit the other two ends of the rolling element.
Furthermore, the spacing pieces are fixedly connected with the tensile belts through connecting belts.
Furthermore, the spacing pieces are fixedly connected with the tensile belts through two connecting belts, and a gap is formed between the two connecting belts.
Furthermore, the connecting position between the connecting belt and the tensile belt is positioned at the midpoint between the tensile belt and two adjacent spacing pieces.
Further, the side wall of the connecting band facing to the space between two adjacent spacing pieces is arc-shaped.
Furthermore, the anti-pulling strip, the connecting belt and the spacing pieces are integrally formed.
Furthermore, the cross section of the anti-pulling strip is square.
Furthermore, two spacing pieces at two ends of the tensile belt are respectively provided with only one contact surface which is in contact with the rolling element, and the contact surfaces on the adjacent spacing pieces jointly limit two ends of the rolling element positioned in the contact surfaces.
Furthermore, two spacing pieces at two ends of the tensile belt are respectively provided with a convex part, so that when a plurality of retainers are positioned in the rolling element circulation passage, the adjacent spacing pieces between the adjacent retainers are in pushing contact through the convex parts.
Furthermore, a first accommodating groove is formed in the first contact surface, a second accommodating groove is formed in the second contact surface, one end of the first accommodating groove is located on the side wall of the spacing piece so that the rolling element can conveniently enter the first accommodating groove along the end of the first accommodating groove, and the first falling-preventing surface forms the inner side wall of the other end of the first accommodating groove; one end of the second containing groove is located on the side wall of the spacing piece so that the rolling element can enter the second containing groove along the end, and the second anti-falling surface forms the inner side wall of the other end of the second containing groove.
Further, the inner wall surface of the first accommodating groove has a shape that is fitted to the outer side wall of the rolling element, and the inner wall surface of the second accommodating groove has a shape that is fitted to the outer side wall of the rolling element.
Furthermore, the joints of the first accommodating groove and the second accommodating groove on the same spacer and the side wall of the spacer are respectively located at opposite ends of the spacer.
Compared with the prior art, the invention has the following beneficial effects:
1. the device reduces the acting force of the rolling element on the retainer by arranging the retainers in the rolling element circulation passage, so that the acting force applied to the retainer at the joint of a load area and a non-load area is reduced, the retainer is prevented from being broken by pulling, and the service life of the retainer is prolonged.
2. The structure of the retainer in the device can be demoulded and formed up and down during injection molding; meanwhile, the anti-falling function of the rolling elements on two sides is realized.
3. The anti-falling surfaces of the retainer are respectively positioned on the upper end surface and the lower end surface of the spacing piece and are respectively positioned on different sides of the upper end surface and the lower end surface so as to form the maximum anti-falling area and the maximum surface strength.
4. The square section anti-pulling belt and the single-side double-connecting belt design of the retainer enhance the friction resistance in the tensile belt groove and the flexibility function of the retainer belt during rotation.
In order to make the aforementioned and other objects, features and advantages of the invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Fig. 2 is a schematic structural view of a retainer according to an embodiment of the present invention.
Fig. 3 is a partial structural schematic view of a retainer in an embodiment of the present invention.
Fig. 4 is a top view of a retainer in an embodiment of the present invention.
Fig. 5 is a sectional view taken along line a-a in fig. 4.
In the figure: 1-slide, 11-rolling element circulation path, 2-retainer, 3-anti-pulling strip, 4-connecting strip, 5-spacing piece, 51-first containing groove, 52-first anti-falling surface, 53-second containing groove, 54-second anti-falling surface, 55-convex part and 6-rolling element.
Detailed Description
To further illustrate the technical means and effects of the present invention adopted to achieve the predetermined objects, the following detailed description of the embodiments, structures, features and effects according to the present invention will be made with reference to the accompanying drawings and preferred embodiments.
As shown in fig. 1, a sliding seat rolling system with a multi-sectional type rolling assembly includes a rolling element circulation path 11 provided in a sliding seat 1, a plurality of rolling elements 6 rollingly connected in the rolling element circulation path 11, and six retainers 2.
As shown in fig. 2-3, the holder includes a tension-resistant tape 3, a connecting tape 4, and a spacer 5.
Wherein, the tensile belt 3, the connecting belt 4 and the spacing pieces 5 are prepared by adopting an integral injection molding mode.
The quantity of resistance stretching strap 3 is two and parallel arrangement, and the cross section of resistance stretching strap 3 is square, and the quantity of space stop 5 is six, and the double-phase relative week lateral wall of space stop 5 is respectively through connecting band 4 and resistance stretching strap 3 fixed connection, and wherein, every junction between space stop 5 and the resistance stretching strap 3 all is connected through two connecting bands 4, leaves the clearance between two connecting bands 4 of same junction to increase elasticity. Through the design of the tensile belt 3 with the square section and the double-side double-connection belt 4, the retainer has remarkable functions of resisting abrasion in the groove and keeping the flexibility of the belt in rotation.
In this embodiment, the connection between the connecting band 4 and the tensile band 3 is located at the midpoint between the two adjacent spacing pieces connected by the tensile band. So that the curvature difference value of the anti-pulling belt 3 is small when rotating, and the anti-pulling belt is easy to keep a near-circular curve when the belt is kept circulating in the circulating channel of the sliding seat.
In this embodiment, the side wall of the connecting band 4 facing between two adjacent spacers is arc-shaped. The resistance to plastic deformation of the anti-pull strip 3 or the tie strip 4 is avoided when the rolling element 6 pushes the retainer momentarily.
The anti-pulling strip 3 and the connecting strip 4 limit the left end and the right end of the rolling element 6 between two adjacent spacing pieces.
In this embodiment, each of the two spacers at the two ends of the tensile tape has only one contact surface that is in contact with the rolling element, and the contact surfaces of the two spacers and the contact surfaces of the adjacent spacers together limit the two ends of the rolling element located therein.
The two spacers at both ends of the tensile band have a protrusion 55 so that when the retainers are located in the rolling element circulation path, the adjacent spacers between the adjacent retainers are in pushing contact with each other via the protrusion. Of course, a rolling element may also be placed between adjacent holders.
The two adjacent spacing pieces 5 limit the upper end and the lower end of the rolling element 6 positioned in the spacing pieces, each spacing piece 5 is provided with a first contact surface and a second contact surface which are in contact with the rolling element 6, each first contact surface is provided with a first anti-falling surface 52, each second contact surface is provided with a second anti-falling surface 54, the first anti-falling surfaces, the second anti-falling surfaces and the tensile belts on the same spacing piece are respectively positioned on different sides of the spacing piece, in the two adjacent spacing pieces, the first anti-falling surfaces on one spacing piece and the second anti-falling surfaces on the other spacing piece are oppositely arranged, and limit the other two ends of the rolling element in the spacing pieces; furthermore, the adjacent two spacing pieces, the two anti-falling surfaces on the spacing pieces, the anti-pulling strips and the connecting bands limit the upper, lower, left, right, front and rear ends of the rolling elements.
And the relative design of the first anti-falling surface 52 and the second anti-falling surface 54 in two adjacent spacing pieces makes the installation and the disassembly of the rolling elements relatively easy.
In this embodiment, as shown in fig. 4-5, the first contact surface has a first receiving groove 51 thereon, the second contact surface has a second receiving groove 53 thereon, one end of the first receiving groove 51 is located on the sidewall of the spacer so that the rolling element can enter the first receiving groove along the end, and the first anti-falling surface 52 forms the inner sidewall of the other end of the first receiving groove 51; one end of the second receiving groove 53 is located on the sidewall of the spacer so that the rolling element can enter the second receiving groove along the end, and the second anti-falling surface 54 forms the inner sidewall of the other end of the second receiving groove 53. The inner wall surface of the first accommodation groove 51 has a shape conforming to the outer wall of the rolling element, and the inner wall surface of the second accommodation groove 53 has a shape conforming to the outer wall of the rolling element.
The design of the containing groove with the circular arc-shaped cross section forms a semi-coating space for the rolling element between two adjacent spacing pieces, so that the retaining belt can not generate a clamping effect on the rolling element in a rotary area; the smoothness of rolling of the rolling element in the rolling device is ensured, and the rolling friction force borne by the rolling element is effectively reduced; meanwhile, the end part of the anti-falling surface is limited through the anti-falling surface; furthermore, the retainer can be prepared by a method of injection molding by demolding from top to bottom. The ejection demoulding is convenient, and the deformation of the demoulded product can not be caused.
The device reduces the acting force of the rolling element on the retainer by arranging the six retainers in the rolling element circulating passage, so that the acting force applied to the retainer at the connecting part of the loading area and the non-loading area is reduced, the retainer is prevented from being broken by pulling, and the service life of the retainer is prolonged.
Although the present invention has been described with reference to the preferred embodiments, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. A sliding seat rolling system with a multi-section type rolling assembly is characterized by comprising a rolling element circulating passage arranged in a sliding seat, a plurality of rolling elements connected in a rolling element circulating passage in a rolling way and a plurality of retainers; the holder includes: the number of the anti-pulling strips is two and the anti-pulling strips are parallel; the spacing pieces are at least three in number and fixedly connected to the two tensile belts, two adjacent spacing pieces limit two ends of the rolling element positioned in the spacing pieces, each spacing piece is provided with a first contact surface and a second contact surface which are in contact with the rolling element, the first contact surface is provided with a first anti-falling surface, the second contact surface is provided with a second anti-falling surface, the first anti-falling surface, the second anti-falling surface and the tensile belts on the same spacing piece are respectively positioned on different sides of the spacing piece, and in the two adjacent spacing pieces, the first anti-falling surface on one spacing piece and the second anti-falling surface on the other spacing piece are oppositely arranged and limit the other two ends of the rolling element.
2. The skate system of claim 1, wherein: the spacing pieces are fixedly connected with the tensile belts through connecting belts.
3. The skate system of claim 2, wherein: the spacing pieces are fixedly connected with the tensile belts through two connecting belts, and a gap is formed between the two connecting belts.
4. A skate rolling system with multi-section rolling assembly as defined in claim 3 wherein: the connecting position between the connecting belt and the tensile belt is positioned at the midpoint between the tensile belt and the two adjacent spacing pieces.
5. A skate rolling system with multi-section rolling assembly as defined in claim 3 wherein: the side wall of the connecting band facing to the space between two adjacent spacing pieces is arc-shaped.
6. The skate system of claim 1, wherein: the cross section of the anti-pulling strip is square.
7. The skate system of claim 1, wherein: the two spacing pieces at two ends of the tensile belt are respectively provided with only one contact surface which is in contact with the rolling element, and the contact surfaces on the adjacent spacing pieces jointly limit two ends of the rolling element positioned in the contact surfaces.
8. The skate system of claim 7, wherein: the two spacing pieces at two ends of the tensile belt are respectively provided with a convex part, so that when the retainers are positioned in the rolling element circulation passage, the adjacent spacing pieces between the adjacent retainers are in pushing contact through the convex parts.
9. A skate rolling system with multi-section rolling assembly as claimed in any one of claims 1-8, wherein: the first contact surface is provided with a first accommodating groove, the second contact surface is provided with a second accommodating groove, one end of the first accommodating groove is positioned on the side wall of the spacing piece so that the rolling element can conveniently enter the first accommodating groove along the end, and the first anti-falling surface forms the inner side wall of the other end of the first accommodating groove; one end of the second containing groove is located on the side wall of the spacing piece so that the rolling element can enter the second containing groove along the end, and the second anti-falling surface forms the inner side wall of the other end of the second containing groove.
10. The skate system of claim 9, wherein: the inner wall surface of the first accommodating groove has a shape which is attached to the outer side wall of the rolling element, and the inner wall surface of the second accommodating groove has a shape which is attached to the outer side wall of the rolling element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011201496.0A CN112343921A (en) | 2020-11-02 | 2020-11-02 | Sliding seat rolling system with multi-section rolling assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011201496.0A CN112343921A (en) | 2020-11-02 | 2020-11-02 | Sliding seat rolling system with multi-section rolling assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112343921A true CN112343921A (en) | 2021-02-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011201496.0A Pending CN112343921A (en) | 2020-11-02 | 2020-11-02 | Sliding seat rolling system with multi-section rolling assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112343921A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1048860A1 (en) * | 1999-04-30 | 2000-11-02 | Thk Co., Ltd. | Spacer for linear motion apparatus and linear motion apparatus provided with spacer |
| JP2001124075A (en) * | 1999-10-20 | 2001-05-08 | Nippon Thompson Co Ltd | Linear motion rolling guide unit |
| JP2007263305A (en) * | 2006-03-29 | 2007-10-11 | Ntn Corp | Bearing incorporating tool, tapered roller bearing, tapered roller bearing incorporating method, and main shaft supporting structure of wind power generator |
| CN201043568Y (en) * | 2007-05-14 | 2008-04-02 | 精浚科技股份有限公司 | Structure of rolling component keeper |
| JP2008138742A (en) * | 2006-11-30 | 2008-06-19 | Nsk Ltd | Rolling element holding spacer and linear guide |
| EP2461058A1 (en) * | 2006-03-10 | 2012-06-06 | NTN Corporation | Roller bearing, cage segment, spacer, and main-shaft support structure for wind-driven generator |
| WO2012146548A1 (en) * | 2011-04-29 | 2012-11-01 | Aktiebolaget Skf | Rolling body cage, rolling body holder and rolling body receptacle |
| JP2014219022A (en) * | 2013-05-02 | 2014-11-20 | Thk株式会社 | Motion guide device |
-
2020
- 2020-11-02 CN CN202011201496.0A patent/CN112343921A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1048860A1 (en) * | 1999-04-30 | 2000-11-02 | Thk Co., Ltd. | Spacer for linear motion apparatus and linear motion apparatus provided with spacer |
| JP2001124075A (en) * | 1999-10-20 | 2001-05-08 | Nippon Thompson Co Ltd | Linear motion rolling guide unit |
| EP2461058A1 (en) * | 2006-03-10 | 2012-06-06 | NTN Corporation | Roller bearing, cage segment, spacer, and main-shaft support structure for wind-driven generator |
| JP2007263305A (en) * | 2006-03-29 | 2007-10-11 | Ntn Corp | Bearing incorporating tool, tapered roller bearing, tapered roller bearing incorporating method, and main shaft supporting structure of wind power generator |
| JP2008138742A (en) * | 2006-11-30 | 2008-06-19 | Nsk Ltd | Rolling element holding spacer and linear guide |
| CN201043568Y (en) * | 2007-05-14 | 2008-04-02 | 精浚科技股份有限公司 | Structure of rolling component keeper |
| WO2012146548A1 (en) * | 2011-04-29 | 2012-11-01 | Aktiebolaget Skf | Rolling body cage, rolling body holder and rolling body receptacle |
| JP2014219022A (en) * | 2013-05-02 | 2014-11-20 | Thk株式会社 | Motion guide device |
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Application publication date: 20210209 |