CN202162936U - Gear driving type straight arm - Google Patents
Gear driving type straight arm Download PDFInfo
- Publication number
- CN202162936U CN202162936U CN2011202609209U CN201120260920U CN202162936U CN 202162936 U CN202162936 U CN 202162936U CN 2011202609209 U CN2011202609209 U CN 2011202609209U CN 201120260920 U CN201120260920 U CN 201120260920U CN 202162936 U CN202162936 U CN 202162936U
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- China
- Prior art keywords
- main shaft
- bearing
- gear
- mandrel
- arm
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- Expired - Fee Related
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Abstract
The utility model discloses a gear driving type straight arm, which relates to the structure of a working arm in a rotational molding machine and mainly comprises a spindle, a central spindle, a reversing component and the like. In addition, a gear with straight teeth is disposed on the spindle, directly meshed with a motor gear and used for power transmission, accordingly, a chain transmission structure in a traditional straight arm structure is replaced, and the problem of pulsation when a spindle rotates due to the chain transmission structure is avoided. Simultaneously, an oil seal ring and an elastic retainer ring are respectively disposed on two sides of a bearing for supporting the central spindle during rotation, and accordingly, the bearing of the central spindle can be effectively sealed and lubricated even at the high temperature of 300 DEG C. Finally, one end of a reversing shaft is connected with a fixing disc provided with a disc bevel gear by a stepped shaft and a stepped hole which are fittingly welded, and accordingly operational stability of the reversing component is effectively guaranteed.
Description
Technical field
The utility model relates to the straight-arm structure in a kind of rotational moulding machinery, is meant gear drive formula straight-arm specifically.
Background technology
Working arm structure in the rotational moulding machinery is mainly used in installation mold and rotates rotational moulding work, and simultaneously, in the prior art, the working arm of rotational moulding machinery can also be designed to patterns such as straight-arm, L arm, U arm according to the demands of different of product.Present employed rotational moulding machine straight-arm mainly by the main shaft of bearing supporting and mandrel, and the assembly that commutates etc. constitute; Motor is used as power through chain, sprocket wheel and transmits and driving main shaft and mandrel rotation respectively; Thereby drive the switching-over assembly and carry out 360 ° of rotation rotational moulding around X axle and Z axle; Often there is following defective in actual use in this straight-arm structure: one, unstable through the main shaft working speed of chain, chain wheel drive by motor, pulsation phenomenon is often arranged; Two, under 300 ℃ of conditions of high temperature, the sealing and the lubrication problem of mandrel bearing are not well solved; Three, switching-over assembly job insecurity.
Summary of the invention
The utility model technical problem to be solved is to overcome the defective of prior art and a kind of main shaft is provided and the gear drive formula straight-arm of commutate assembly working stability, mandrel bearing seal and high lubricating effect.
The technical problem of the utility model realizes through following technical scheme:
A kind of gear drive formula straight-arm comprises the mandrel in main shaft and the main shaft, and described main shaft is rotated by motor-driven, and these main shaft two ends are bearing in respectively on the bearing in the bearing block, and main shaft one end also is equipped with the switching-over assembly; Described mandrel two ends are arranged in the main shaft through the bearing supporting respectively, and this mandrel one end stretches out main shaft and sprocket wheel is installed, and the mandrel other end stretches out main shaft and bevel gear is installed; Described switching-over assembly comprises the arm head that is connected spindle nose; Be provided with the reversing shaft that the vertical major axial line is provided with in this arm head, and this reversing shaft is again with the bearing supporting and be installed in the arm head, the two ends of reversing shaft are stretched out arm head and are separately installed with fixed disk; And a fixed disk is provided with the dish bevel gear therein; This dish bevel gear is meshed with bevel gear on the mandrel, and described main shaft is provided with straight-tooth gear, the transmission of directly meshing and be used as power of this straight-tooth gear and motor gear; The bearing both sides of described supporting mandrel are equipped with oil seal washer and circlip, and this oil seal washer, bearing and circlip all are enclosed in the main shaft by bearing cover.
Described reversing shaft one end and be equipped with between the fixed disk of dish bevel gear and be set to the equipped relation that is welded to connect of multidiameter and shoulder hole.
Be equipped with lubricating cup on described main shaft and the arm head.
Be provided with the connecting plate that is connected between described main shaft and the arm head, and on the main shaft of adjacent connecting plate, also be provided with stiffener.
Compared with prior art; The utility model mainly is to be provided with the straight-tooth gear that directly meshes and be used as power and transmit with motor gear on the main shaft of straight-arm structure in rotational moulding machinery; Thereby replace the chain drive structure in traditional straight-arm structure; Avoid adopting chain drive structure and cause the problem of main shaft existence pulsation when rotating; The bearing both sides of also supporting mandrel being rotated simultaneously are respectively equipped with oil seal washer and circlip, even like this under 300 ℃ of conditions of high temperature, the sealing of mandrel bearing and lubrication problem also can be well solved; Also with reversing shaft one end and be equipped with between the fixed disk of dish bevel gear and be set to the equipped relation that is welded to connect of multidiameter and shoulder hole, effectively guarantee the assembly job stability that commutates at last.
Description of drawings
Fig. 1 is the sectional structure sketch map of the utility model.
Fig. 2 is the A place enlarged drawing of Fig. 1.
Fig. 3 is the sectional structure sketch map of switching-over assembly.
The specific embodiment
To elaborate again to the utility model embodiment by above-mentioned accompanying drawing below.
Like Fig. 1～shown in Figure 3,1. sprocket wheel, 2. lining, 3. bearing cover, 4. bearing, 5. bearing block, 6. main shaft, 7. mandrel, 8. holding screw, 9. straight-tooth gear, 10. key, 11. stiffeners, 12. lubricating cups, 13. connecting plates, 14. arm heads, 15. fixed disks, 16. reversing shafts, 17. dish bevel gears, 18. bevel gears, 19. oil seal washers, 20. circlips.
Gear drive formula straight-arm belongs to and is used for the workpiece that mould rolls dress in the rotational moulding machinery, mainly is made up of main shaft 6, mandrel 7 and the switching-over assembly etc. that are arranged in the main shaft.
Described main shaft 6 is a hollow tubular structure; Its two ends are bearing in respectively on two bearings 4 that are installed in the bearing block 5; This bearing block is fixed on the workbench (not shown) of rotational moulding machinery, and the bearing in two bearing blocks 5 is connected in bearing cover 3 on the bearing block is enclosed in by screw respectively; Also be provided with straight-tooth gear 9 on the main shaft 6, be connected to form transmission of power through key 10 between this straight-tooth gear and the main shaft 6, and on straight-tooth gear 9, be provided with holding screw 8 and connect fixing.Simultaneously; This straight-tooth gear 9 directly meshes with the motor gear (not shown) again; Can receive motor-driven to drive main shaft 6 rotation works, because the working speed of straight-tooth gear 9 is stable, so can solve the problem that adopts the chain transmission in original straight-arm and cause main shaft 6 rotation existence pulsation through straight-tooth gear.
Described mandrel 7 two ends are supported and are arranged in the main shaft 6 through bearing 4; The bearing both sides of this supporting mandrel are equipped with oil seal washer 19 and circlip 20; And be fixed in bearing cover 3 on the main shaft 6 is enclosed in above-mentioned oil seal washer 19, bearing 4 and circlip 20 through screw; Also be provided with lubricating cup on the bearing cover 3 of Fig. 1 left end and can carry out oiling, this structure can guarantee under 300 ℃ of conditions of high temperature, to slowly run, and the sealing of mandrel bearing and lubrication problem can both be well solved.Mandrel 7 one ends in Fig. 1 left side stretch out main shaft 6 after round nut and stop washer are equipped with lining and sprocket wheel 1, are connected to form transmission of power through key between this sprocket wheel and the mandrel 7, and sprocket wheel 1 forms the chain transmission with motor shaft; Mandrel 7 other ends on Fig. 1 right side stretch out main shaft 6 and bevel gear 18 and lining 2 are installed, and are connected to form transmission of power through key between this bevel gear and the mandrel 7.
Described switching-over assembly is as shown in Figure 3 to have an arm head 14; Said main shaft 6 ends are connected fixing with this arm head bolt through connecting plate 13; On the main shaft 6 near connecting plate, also be provided with stiffener 11 and lubricating cup 12, this lubricating cup can be used for the bearing 4 of Fig. 1 right-hand member supporting mandrel 7 is carried out oil injecting lubricating; Be provided with an installing hole in the described arm head 14; Arm head is provided with two lubricating cups that communicate with installing hole 12; These two lubricating cups are respectively through type lubricating cup and joint type forced filling oil cup, are provided with the reversing shaft 16 that vertical major 6 axial lines are provided with in the installing hole, and this reversing shaft supports and is installed in the installing hole of arm head 14 with bearing again; The two ends of reversing shaft 16 are separately installed with fixed disk 15; One of them fixed disk connects fixing through nut, be mainly used in the installation Plastic Rolling Molds, and another fixed disk 15 is fitted on the multidiameter of reversing shaft 16 ends and welds fixing through shoulder hole; Also be provided with the dish bevel gear 17 that screw connects on this fixed disk, this dish bevel gear is meshed with bevel gear 18 on the mandrel 7.
Starter motor can be distinguished driving main shaft 6 and rotate with mandrel 7; The main shaft rotation can drive whole switching-over assembly and rotate around the X axle; And mandrel rotates through bevel gear 18 that is meshed and the reversing shaft 16 that dish bevel gear 17 drives in the switching-over assemblies and rotates around the Z axle, so can make the Plastic Rolling Molds that is installed on the fixed disk 15 realize two-way 360 ° of rotation rotational moulding of X axle and Z axle.
Claims (4)
1. a gear drive formula straight-arm comprises the mandrel (7) in main shaft (6) and the main shaft, and described main shaft is rotated by motor-driven, and this main shaft (6) two ends are bearing in respectively on the bearing (4) in the bearing block (5), and main shaft one end also is equipped with the switching-over assembly; Described mandrel (7) two ends are arranged in the main shaft (6) through bearing (4) supporting respectively, and this mandrel one end stretches out main shaft and sprocket wheel (1) is installed, and the mandrel other end stretches out main shaft and bevel gear (18) is installed; Described switching-over assembly comprises the arm head (14) that is connected main shaft (6) end; Be provided with the reversing shaft (16) that the vertical major axial line is provided with in this arm head; And this reversing shaft supports and is installed in the arm head (14) with bearing again, and the two ends of reversing shaft are stretched out arm head (14) and are separately installed with fixed disk (15), and a fixed disk is provided with dish bevel gear (17) therein; This dish bevel gear is meshed with bevel gear (18) on the mandrel (7), it is characterized in that:
A, described main shaft (6) are provided with straight-tooth gear (9), the transmission of directly meshing and be used as power of this straight-tooth gear and motor gear;
Bearing (4) both sides of b, described supporting mandrel (7) are equipped with oil seal washer (19) and circlip (20), and this oil seal washer (19), bearing (4) and circlip (20) all are enclosed in the main shaft (6) by bearing cover (3).
2. gear drive formula straight-arm according to claim 1 is characterized in that described reversing shaft (16) one ends and the equipped relation that is welded to connect that is set to multidiameter and shoulder hole between the fixed disk (15) that coils bevel gear (17) is installed.
3. gear drive formula straight-arm according to claim 1 is characterized in that being equipped with lubricating cup (12) on described main shaft (6) and the arm head (14).
4. gear drive formula straight-arm according to claim 1 is characterized in that being provided with the connecting plate (13) that is connected between described main shaft (6) and the arm head (14), and on the main shaft (6) of adjacent connecting plate, also is provided with stiffener (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202609209U CN202162936U (en) | 2011-07-22 | 2011-07-22 | Gear driving type straight arm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202609209U CN202162936U (en) | 2011-07-22 | 2011-07-22 | Gear driving type straight arm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202162936U true CN202162936U (en) | 2012-03-14 |
Family
ID=45798787
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202609209U Expired - Fee Related CN202162936U (en) | 2011-07-22 | 2011-07-22 | Gear driving type straight arm |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202162936U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104959977A (en) * | 2015-06-26 | 2015-10-07 | 天津市福臻机电工程有限公司 | Turning equipment for mechanical arm |
| CN112171985A (en) * | 2020-08-26 | 2021-01-05 | 温岭市旭日滚塑科技有限公司 | Straight arm assembly |
-
2011
- 2011-07-22 CN CN2011202609209U patent/CN202162936U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104959977A (en) * | 2015-06-26 | 2015-10-07 | 天津市福臻机电工程有限公司 | Turning equipment for mechanical arm |
| CN112171985A (en) * | 2020-08-26 | 2021-01-05 | 温岭市旭日滚塑科技有限公司 | Straight arm assembly |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120314 Termination date: 20120722 |