CN105437867A - Telescopic mechanism with simple and detachable roller wheel device - Google Patents
Telescopic mechanism with simple and detachable roller wheel device Download PDFInfo
- Publication number
- CN105437867A CN105437867A CN201510969982.XA CN201510969982A CN105437867A CN 105437867 A CN105437867 A CN 105437867A CN 201510969982 A CN201510969982 A CN 201510969982A CN 105437867 A CN105437867 A CN 105437867A
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- China
- Prior art keywords
- rotating shaft
- bearing
- end cap
- sleeve
- fixed
- Prior art date
- 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.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B35/00—Axle units; Parts thereof ; Arrangements for lubrication of axles
- B60B35/02—Dead axles, i.e. not transmitting torque
- B60B35/10—Dead axles, i.e. not transmitting torque adjustable for varying track
- B60B35/1072—Dead axles, i.e. not transmitting torque adjustable for varying track by transversally movable elements
- B60B35/109—Dead axles, i.e. not transmitting torque adjustable for varying track by transversally movable elements the element is an axle part
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61F—RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; PREVENTING DERAILING OF RAIL VEHICLES; WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAIL VEHICLES
- B61F9/00—Rail vehicles characterised by means for preventing derailing, e.g. by use of guide wheels
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mounting Of Bearings Or Others (AREA)
- Rolling Contact Bearings (AREA)
Abstract
The invention discloses a telescopic mechanism with a simple and detachable roller wheel device. The telescopic mechanism comprises two wheel bodies and a middle connecting shaft body, wherein the outer wall of each wheel body is provided with a wheel groove; an axial through hole is formed in the middle of each wheel body; the middle lateral wall of each axial through hole is provided with a connecting protruding ring; the inner wall of each connecting protruding ring is provided with a plurality of protruding strips; a bearing is inserted into each connecting protruding ring; the protruding strips are inserted into corresponding strip-shaped grooves in the outer wall of outer rings of the corresponding bearings; a rotary shaft is fixed in the inner ring of each bearing, and the connecting end of each rotary shaft is provided with a spline shaft part; the two ends of the middle connecting shaft body are provided with spline holes, and the spline shaft parts are inserted into the corresponding spline holes; end covers are fixed at the two ends of the middle connecting shaft body, and the connecting ends of the rotary shafts are inserted into the end covers; a buffering spring is arranged between each spline shaft part and the bottom end of the corresponding spline hole. The telescopic mechanism with the simple and detachable roller wheel device can prevent derailing during running, and meanwhile the bearings in the wheel bodies are convenient to dismount and mount.
Description
Technical field:
The present invention relates to roller devices equipment technical field, relate to a kind of employing Simple detachable formula roller devices telescoping mechanism in particular.
Background technology:
Existing driving shaft mechanism is generally that the two ends fixed idler whell of axis body realizes rolling, and the spacing between its axis body and two rollers can not move, namely spacing is fixing, and track is between wheel in turning and can produces holding position, time like this with regard to making the dolly using this mechanism orbit, dolly is easy to derailing when turning, and causes accident.
And existing roller structure generally adopts is by interference fit holding fixed type bearing in the axially extending bore that has of the middle part of wheel body, then be fixed on bearing through rotating shaft, and namely roller consumable accessory is bearing, and due to bearing be fixed on wheel body by interference fit holding, make its dismounting bother very much like this, thus greatly reduce the effect of its maintenance maintenance, and the improper roller that also easily makes of bearing removal damages, so just need this roller to change, increase maintenance cost.
Summary of the invention:
The object of the invention is to overcome the deficiencies in the prior art, there is provided a kind of and adopt Simple detachable formula roller devices telescoping mechanism, the dolly that it can ensure to be provided with mechanism realizes the adjustment of spacing between two wheel bodys by recoil spring when turning, thus the generation of derailing when preventing from running, meanwhile, the bearing in this wheel body adopts plug bush type to fix, and is fixed by raised item and strip groove, make its bearing removal easy for installation, greatly improve its replacing speed and effect.
The scheme that the present invention solve the technical problem is:
A kind of employing Simple detachable formula roller devices telescoping mechanism, comprise two wheel bodys and be connected axis body with middle part, the lateral wall of described wheel body has race, the middle part of wheel body has axially extending bore, the middle part sidewall of axially extending bore has connection bump circle, the madial wall of connection bump circle has multiple raised item, bearing sleeve is in connection bump circle, in the strip groove of the correspondence that raised item sleeve has on the lateral wall of the outer ring of bearing, rotating shaft is fixed in the inner ring of bearing, the madial wall at the two ends of axially extending bore has negative thread, outer end cap and inner end cap are screwed onto in the negative thread of the end of corresponding axially extending bore respectively, the coupling end of rotating shaft stretches out inner end cap, the coupling end of described rotating shaft has spline shaft, the two ends that middle part connects axis body have splined hole, spline shaft sleeve is in the splined hole of correspondence, the two ends that middle part connects axis body are fixed with end cap, the coupling end sleeve of rotating shaft, in end cap, is provided with recoil spring between spline shaft and the bottom of splined hole, and the bottom of splined hole is put forth effort in one end of recoil spring, the other end of recoil spring puts forth effort on one end of spline shaft, and the other end of spline shaft is pressed against on end cap.
The diameter of the head end of described rotating shaft is greater than rotating shaft by the linkage section of interference fit holding at the inner ring of bearing, the head end of rotating shaft is pressed against on the outer face of the inner ring of bearing, between the linkage section of rotating shaft and coupling end, there is the section of being spirally connected, fixing swivel nut is screwed onto in the section of being spirally connected, and the outer face of fixing swivel nut is pressed against on the inner end surface of the inner ring of bearing.
The internal end surface of described outer end cap is fixed with self-lubricating abrasion-resistant layer, self-lubricating abrasion-resistant lamination leans against on the end face of the head end of rotating shaft.
The internal end surface of described inner end cap is fixed with self-lubricating abrasion-resistant circle, the inner end surface of fixing swivel nut is pressed against on self-lubricating abrasion-resistant circle.
Before the negative thread that the madial wall at the connection bump circle of described axially extending bore and the two ends of axially extending bore has, there is annular groove, the sidewall of annular groove sprinkles and is bolted with multiple bulb plunger, the steel ball of bulb plunger stretches out annular groove, outer end cap has the shrinkage pool corresponding with bulb plunger with on the lateral wall of inner end cap, and the steel ball of bulb plunger is nested in corresponding shrinkage pool.
One end of described spline shaft is fixed with protruding end, and the bottom of splined hole forms connection bump end, and one end sleeve of recoil spring is in protruding end, and the other end sleeve of recoil spring is in connection bump end.
The two ends lateral wall of described middle part connection axis body has the rib that outward radial extends, wheel body is fixed with multiple position-limited lever facing on an end face of rib, in the spacing hole that position-limited lever sleeve is corresponding on rib, the spacing head that the end of position-limited lever has is in the side place of baffle plate away from wheel body.
Outstanding effect of the present invention is:
Compared with prior art, the dolly that it can ensure to be provided with mechanism realizes the adjustment of spacing between two wheel bodys by recoil spring when turning, thus the generation of derailing when preventing from running, simultaneously, bearing in this wheel body adopts plug bush type to fix, be fixed by raised item and strip groove, make its bearing removal easy for installation, greatly improve its replacing speed and effect.
Accompanying drawing illustrates:
Fig. 1 is structural representation of the present invention;
Fig. 2 is the structural representation of wheel body of the present invention and dependency structure;
Fig. 3 is the part sectional view of Fig. 2.
Detailed description of the invention:
Embodiment, see as shown in Figure 1 to Figure 3, a kind of employing Simple detachable formula roller devices telescoping mechanism, comprise two wheel bodys 10 and be connected axis body 40 with middle part, the lateral wall of described wheel body 10 has race 11, the middle part of wheel body 10 has axially extending bore 12, the middle part sidewall of axially extending bore 12 has connection bump circle 13, the madial wall of connection bump circle 13 has multiple raised item 131, bearing 20 sleeve is in connection bump circle 13, in the strip groove 21 of the correspondence that raised item 131 sleeve has on the lateral wall of the outer ring of bearing 20, rotating shaft 30 is fixed in the inner ring of bearing 20, the madial wall at the two ends of axially extending bore 12 has negative thread, outer end cap 14 and inner end cap 15 are screwed onto in the negative thread of the end of corresponding axially extending bore 12 respectively, the coupling end of rotating shaft 20 stretches out inner end cap 15, the coupling end of described rotating shaft 20 has spline shaft 22, the two ends that middle part connects axis body 40 have splined hole 41, spline shaft 22 sleeve is in the splined hole 41 of correspondence, the two ends that middle part connects axis body 40 are fixed with end cap 42, the coupling end sleeve of rotating shaft 20 is in end cap 42, recoil spring 43 is provided with between the bottom of spline shaft 22 and splined hole 41, the bottom of splined hole 41 is put forth effort in one end of recoil spring 43, the other end of recoil spring 43 puts forth effort on one end of spline shaft 22, and the other end of spline shaft 22 is pressed against on end cap 42.
Further, the diameter of the head end of described rotating shaft 30 is greater than rotating shaft 30 by the linkage section of interference fit holding at the inner ring of bearing 20, the head end of rotating shaft 30 is pressed against on the outer face of the inner ring of bearing 20, there is between the linkage section of rotating shaft 30 and coupling end the section of being spirally connected 31, fixing swivel nut 32 is screwed onto in the section of being spirally connected 31, and the outer face of fixing swivel nut 32 is pressed against on the inner end surface of the inner ring of bearing 20.
Further, the internal end surface of described outer end cap 14 is fixed with self-lubricating abrasion-resistant layer 141, and self-lubricating abrasion-resistant layer 141 is pressed against on the end face of the head end of rotating shaft 30.
Further, the internal end surface of described inner end cap 15 is fixed with self-lubricating abrasion-resistant circle 151, the inner end surface of fixing swivel nut 32 is pressed against on self-lubricating abrasion-resistant circle 151.
Further, before the negative thread that the madial wall at the connection bump circle 13 of described axially extending bore 12 and the two ends of axially extending bore 12 has, there is annular groove 121, the sidewall of annular groove 121 sprinkles and is bolted with multiple bulb plunger 122, the steel ball of bulb plunger 122 stretches out annular groove 121, the lateral wall of outer end cap 14 and inner end cap 15 has the shrinkage pool 16 corresponding with bulb plunger 122, the steel ball of bulb plunger 122 is nested in corresponding shrinkage pool 16.
Further, one end of described spline shaft 22 is fixed with protruding end 221, and the bottom of splined hole 41 forms connection bump end 411, and one end sleeve of recoil spring 43 is in protruding end 221, and the other end sleeve of recoil spring 43 is in connection bump end 411.
Further, the two ends lateral wall of described middle part connection axis body 40 has the rib 44 that outward radial extends, wheel body 10 is fixed with multiple position-limited lever 45 facing on an end face of rib 44, in the spacing hole 441 that position-limited lever 45 sleeve is corresponding on rib 44, spacing 451 that the end of position-limited lever 45 has is in the side place of baffle plate 44 away from wheel body 10.
In use, by the buffering effect of recoil spring 43, wheel body 10 can be made to realize changing along with the change of the spacing between the track spacing that can realize between two wheel bodys 10, thus wheel body 10 can not be made to derail from track, namely also can not derail from track when turning, ensureing that it normally runs.
By unloading outer end cap 14 and inner end cap 15, then bearing 20 being unloaded from connection bump circle 13 and can change, very convenient.
Finally; above embodiment is only for illustration of the present invention; and be not limitation of the present invention; the those of ordinary skill of relevant technical field; without departing from the spirit and scope of the present invention; can also make a variety of changes and modification, therefore all equivalent technical schemes also belong to category of the present invention, and scope of patent protection of the present invention should be defined by the claims.
Claims (7)
1. one kind adopts Simple detachable formula roller devices telescoping mechanism, comprise two wheel bodys (10) and be connected axis body (40) with middle part, it is characterized in that: the lateral wall of described wheel body (10) has race (11), the middle part of wheel body (10) has axially extending bore (12), the middle part sidewall of axially extending bore (12) has connection bump circle (13), the madial wall of connection bump circle (13) has multiple raised item (131), bearing (20) sleeve is in connection bump circle (13), in the strip groove (21) of the correspondence that raised item (131) sleeve has on the lateral wall of the outer ring of bearing (20), rotating shaft (30) is fixed in the inner ring of bearing (20), the madial wall at the two ends of axially extending bore (12) has negative thread, outer end cap (14) and inner end cap (15) are screwed onto in the negative thread of the end of corresponding axially extending bore (12) respectively, the coupling end of rotating shaft (20) stretches out inner end cap (15), the coupling end of described rotating shaft (20) has spline shaft (22), the two ends that middle part connects axis body (40) have splined hole (41), spline shaft (22) sleeve is in the splined hole (41) of correspondence, the two ends that middle part connects axis body (40) are fixed with end cap (42), the coupling end sleeve of rotating shaft (20) is in end cap (42), recoil spring (43) is provided with between the bottom of spline shaft (22) and splined hole (41), the bottom of splined hole (41) is put forth effort in one end of recoil spring (43), the other end of recoil spring (43) puts forth effort on one end of spline shaft (22), the other end of spline shaft (22) is pressed against on end cap (42).
2. one according to claim 1 adopts Simple detachable formula roller devices telescoping mechanism, it is characterized in that: the diameter of the head end of described rotating shaft (30) is greater than rotating shaft (30) by the linkage section of interference fit holding at the inner ring of bearing (20), the head end of rotating shaft (30) is pressed against on the outer face of the inner ring of bearing (20), there is between the linkage section of rotating shaft (30) and coupling end the section of being spirally connected (31), fixing swivel nut (32) is screwed onto in the section of being spirally connected (31), the outer face of fixing swivel nut (32) is pressed against on the inner end surface of the inner ring of bearing (20).
3. one according to claim 2 adopts Simple detachable formula roller devices telescoping mechanism, it is characterized in that: the internal end surface of described outer end cap (14) is fixed with self-lubricating abrasion-resistant layer (141), self-lubricating abrasion-resistant layer (141) is pressed against on the end face of the head end of rotating shaft (30).
4. one according to claim 1 adopts Simple detachable formula roller devices telescoping mechanism, it is characterized in that: the internal end surface of described inner end cap (15) is fixed with self-lubricating abrasion-resistant circle (151), the inner end surface of fixing swivel nut (32) is pressed against on self-lubricating abrasion-resistant circle (151).
5. one according to claim 1 adopts Simple detachable formula roller devices telescoping mechanism, it is characterized in that: before the negative thread that the madial wall at the connection bump circle (13) of described axially extending bore (12) and the two ends of axially extending bore (12) has, there is annular groove (121), the sidewall of annular groove (121) sprinkles and is bolted with multiple bulb plunger (122), the steel ball of bulb plunger (122) stretches out annular groove (121), the lateral wall of outer end cap (14) and inner end cap (15) have the shrinkage pool (16) corresponding with bulb plunger (122), the steel ball of bulb plunger (122) is nested in corresponding shrinkage pool (16).
6. one according to claim 1 adopts Simple detachable formula roller devices telescoping mechanism, it is characterized in that: one end of described spline shaft (22) is fixed with protruding end (221), the bottom of splined hole (41) forms connection bump end (411), one end sleeve of recoil spring (43) is in protruding end (221), and the other end sleeve of recoil spring (43) is in connection bump end (411).
7. one according to claim 1 adopts Simple detachable formula roller devices telescoping mechanism, it is characterized in that: the two ends lateral wall of described middle part connection axis body (40) has the rib (44) that outward radial extends, the end face of wheel body (10) facing to rib (44) is fixed with multiple position-limited lever (45), position-limited lever (45) sleeve is in the upper corresponding spacing hole (441) of rib (44), and the spacing head (451) that the end of position-limited lever (45) has is in the side place of baffle plate (44) away from wheel body (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510969982.XA CN105437867B (en) | 2015-12-22 | 2015-12-22 | One kind uses Simple detachable formula roller devices telescoping mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510969982.XA CN105437867B (en) | 2015-12-22 | 2015-12-22 | One kind uses Simple detachable formula roller devices telescoping mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105437867A true CN105437867A (en) | 2016-03-30 |
| CN105437867B CN105437867B (en) | 2017-10-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510969982.XA Active CN105437867B (en) | 2015-12-22 | 2015-12-22 | One kind uses Simple detachable formula roller devices telescoping mechanism |
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| CN (1) | CN105437867B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106274291A (en) * | 2016-08-30 | 2017-01-04 | 湖北立晋钢铁集团有限公司 | A kind of axletree |
| CN107128659A (en) * | 2017-05-16 | 2017-09-05 | 广东海洋大学 | A kind of adaptive small rail car |
| CN108454320A (en) * | 2018-05-11 | 2018-08-28 | 吉林大学 | A kind of end face driving centering locking integral type gauge-changeable bogie gauge changing device |
| CN109846252A (en) * | 2019-01-23 | 2019-06-07 | 董文轩 | A kind of bed with height adjusting function |
| CN111301272A (en) * | 2020-04-14 | 2020-06-19 | 何良 | Large-scale pipe fitting transportation auxiliary device for building |
| CN112441052A (en) * | 2019-08-30 | 2021-03-05 | 比亚迪股份有限公司 | Rollover prevention device for railway vehicle and railway vehicle |
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| CN2605999Y (en) * | 2003-01-28 | 2004-03-10 | 刘方炎 | Distance adjustable axle |
| CN201761299U (en) * | 2010-03-22 | 2011-03-16 | 武小玉 | Wheel pitch adjusting mechanism |
| CN103231625A (en) * | 2013-04-08 | 2013-08-07 | 浙江吉利汽车研究院有限公司杭州分公司 | Telescopic device and vehicle provided with same |
| US20150210115A1 (en) * | 2012-07-19 | 2015-07-30 | Haulotte Group | Axle and vehicle comprising at least one such axle |
| CN205417027U (en) * | 2015-12-22 | 2016-08-03 | 苏州频发机电科技有限公司 | Adopt formula of simply dismantling telescopic machanism for roller device |
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2015
- 2015-12-22 CN CN201510969982.XA patent/CN105437867B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04252710A (en) * | 1990-03-26 | 1992-09-08 | Gps Spa | Module type amphibious vehicle |
| CN2605999Y (en) * | 2003-01-28 | 2004-03-10 | 刘方炎 | Distance adjustable axle |
| CN201761299U (en) * | 2010-03-22 | 2011-03-16 | 武小玉 | Wheel pitch adjusting mechanism |
| US20150210115A1 (en) * | 2012-07-19 | 2015-07-30 | Haulotte Group | Axle and vehicle comprising at least one such axle |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106274291A (en) * | 2016-08-30 | 2017-01-04 | 湖北立晋钢铁集团有限公司 | A kind of axletree |
| CN106274291B (en) * | 2016-08-30 | 2019-06-14 | 湖北立晋钢铁集团有限公司 | A kind of axle |
| CN107128659A (en) * | 2017-05-16 | 2017-09-05 | 广东海洋大学 | A kind of adaptive small rail car |
| CN108454320A (en) * | 2018-05-11 | 2018-08-28 | 吉林大学 | A kind of end face driving centering locking integral type gauge-changeable bogie gauge changing device |
| CN108454320B (en) * | 2018-05-11 | 2023-07-18 | 吉林大学 | End face driving centering locking integrated track gauge changing device for track gauge bogie |
| CN109846252A (en) * | 2019-01-23 | 2019-06-07 | 董文轩 | A kind of bed with height adjusting function |
| CN112441052A (en) * | 2019-08-30 | 2021-03-05 | 比亚迪股份有限公司 | Rollover prevention device for railway vehicle and railway vehicle |
| CN112441052B (en) * | 2019-08-30 | 2022-04-15 | 比亚迪股份有限公司 | Rollover prevention device for railway vehicle and railway vehicle |
| CN111301272A (en) * | 2020-04-14 | 2020-06-19 | 何良 | Large-scale pipe fitting transportation auxiliary device for building |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105437867B (en) | 2017-10-10 |
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