CN211145290U

CN211145290U - Power transmission mechanism for thread rolling machine

Info

Publication number: CN211145290U
Application number: CN201921620203.5U
Authority: CN
Inventors: 周乾; 张伟杰
Original assignee: Kunshan Zhongfa Hardware Technology Co Ltd
Current assignee: ZHEJIANG JINGYI STANDARD PARTS Co.,Ltd.
Priority date: 2019-09-26
Filing date: 2019-09-26
Publication date: 2020-07-31
Anticipated expiration: 2029-09-26

Abstract

The utility model discloses a power transmission mechanism for a thread rolling machine, which comprises a heat dissipation disc and a transmission shaft, wherein the transmission shaft is transversely arranged at the right end of the heat dissipation disc, the heat dissipation disc is provided with heat dissipation holes by the outer side and the inner side, the traditional integral belt disc is improved into a split type belt disc and is combined with two adjustable belt limiting devices by improving the belt disc on the power transmission mechanism for the thread rolling machine, the two novel adjustable belt blocking devices also have adjusting function on the original basis of ensuring the function of limiting a transmission belt, the clearance distance between the two adjustable belt limiting devices and the belt disc can be changed by adjusting the two adjustable belt limiting devices outwards or inwards, and once the clearance distance between the two adjustable belt limiting devices and the belt disc is changed, the belt disc can be sleeved with a plurality of transmission belts with different widths and sizes for transmission, therefore, the application range of the power transmission mechanism for the whole thread rolling machine can be enlarged.

Description

Power transmission mechanism for thread rolling machine

Technical Field

The utility model belongs to the technical field of the fastener processing is relevant, concretely relates to power transmission mechanism for thread rolling machine.

Background

The thread rolling machine is one kind of machining equipment for the outer surface of cylindrical workpiece, and its power transmission mechanism is one of the main working equipment of thread rolling machine.

The prior power transmission mechanism for the thread rolling machine has the following problems: when the power transmission mechanism for the existing thread rolling machine is used for transmission, a transmission belt on a transmission motor is required to be sleeved on a belt pulley on the transmission mechanism to be capable of transmission, the transmission belt belongs to a worn product, and when the transmission belt is broken due to excessive wear and needs to be replaced, if the transmission belt with the same model is not replaced at the moment, the whole transmission mechanism cannot be used for transmission, so that the use range of the power transmission mechanism for the whole thread rolling machine can be limited.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a power transmission mechanism for thread rolling machine to when the fracture needs to be changed because of wearing and tearing are excessive, if the drive belt who does not have the same model this moment will cause the problem that whole drive mechanism can not transmit work when solving and proposing in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a power transmission mechanism for a thread rolling machine comprises a heat dissipation disc and a transmission shaft, wherein the transmission shaft is transversely installed at the right end of the heat dissipation disc, heat dissipation holes are formed in the outer side of the heat dissipation disc and are transversely and internally provided with heat dissipation holes, a belt disc is sleeved outside the circumference of the heat dissipation disc, adjustable belt limiting devices are respectively arranged at the left end and the right end of the belt disc, a mounting bearing is sleeved outside the circumference of the middle section of the transmission shaft, the rightmost end of the transmission shaft is connected with a deflection transmission disc, a connecting shaft which transversely extends rightwards is connected to the outer wall of the right end of the deflection transmission disc, the connecting shaft and the deflection transmission disc are fixedly connected through welding, adjusting and fixing screw holes with outward openings are respectively formed in the inner parts of the circumference outer walls at the left end and the right end of the belt disc, belt limiting discs, the circumference internal connection of fixed jack has regulation fixing bolt, two the spacing dish of belt all is through adjusting fixing bolt and belt pulley fixed connection, two the subtend end of the regulation fixing bolt on the spacing dish of belt all sets up the circumference inside the regulation fixed screw at both ends about the belt pulley.

Preferably, a transverse prismatic shaft hole is formed in the center of the heat dissipation disc, the leftmost end of the transmission shaft is connected with a connecting rod, a blocking sleeve is sleeved outside the circumference of the connecting rod, the left end of the connecting rod is connected with a prismatic shaft rod, the prismatic shaft rod is arranged inside the circumference of the prismatic shaft hole, the left end of the prismatic shaft rod is connected with a fixing screw rod, the fixing screw rod is arranged outside the outer wall of the left end of the heat dissipation disc, the blocking sleeve is arranged outside the outer wall of the right end of the heat dissipation disc, a fixing threaded sleeve is sleeved outside the circumference of the fixing screw rod, a connecting sleeve with a left opening is connected to the left end of the deflection transmission disc close to the outer wall of the left end of the upper side, the connecting sleeve is sleeved outside the rightmost end.

Preferably, the adjustable belt limiting devices are provided with two adjustable belt limiting devices, the two adjustable belt limiting devices are identical in shape, size and structural composition, the two adjustable belt limiting devices keep a relatively parallel state at the left end and the right end of the belt pulley, and the maximum distance of the adjustable belt limiting devices outwards adjusted at the left end and the right end of the belt pulley through the adjusting and fixing bolts is one centimeter.

Preferably, both ends circumference outer wall is inside equallys divide about the belt pulley and do not is provided with six outside regulation fixed screw of opening, two the spacing dish of belt leans on outside circumference inside to be provided with six fixed jacks respectively, the inside each six regulation fixed screw in both ends all keeps horizontal coincidence, two with the centre of a circle of the inside each six fixed jacks in two spacing dishes of belt respectively about the belt pulley the circumference inner wall of the spacing dish of belt all keeps the parallel and level, two with belt pulley circumference inner wall the circumference outer wall of the spacing dish of belt all exceeds the circumference outer wall of belt pulley.

Preferably, the cross-sectional shapes of the prismatic shaft hole and the prismatic shaft lever are regular hexagons, and the prismatic shaft hole can be tightly sleeved outside the perimeter of the prismatic shaft lever in a threaded joint manner.

Preferably, the cross-sectional shapes of the fixed threaded sleeve and the blocking sleeve are respectively regular hexagon and circular, the maximum width of the cross section of the fixed threaded sleeve is opposite to the diameter of the cross section of the blocking sleeve, and the maximum width of the cross section of the fixed threaded sleeve and the diameter of the cross section of the blocking sleeve are both larger than the maximum width of the cross section of the prismatic shaft hole.

Compared with the prior art, the utility model provides a power transmission mechanism for thread rolling machine possesses following beneficial effect:

1. the utility model improves the belt pulley on the power transmission mechanism for the thread rolling machine, the traditional integral belt pulley is improved into a split type, namely the belt pulley is combined with two adjustable belt limiting devices, wherein, the novel belt pulley is also used for sleeving a belt to perform transmission action, the two adjustable belt limiting devices are respectively connected with the left end and the right end of the belt pulley to limit and block the transmission belt sleeved on the belt pulley, the two novel adjustable belt limiting devices also have adjusting action on the original basis of ensuring the limiting transmission belt action, the clearance distance between the two adjustable belt limiting devices and the belt pulley can be changed by adjusting the two adjustable belt limiting devices outwards or inwards, and once the clearance distance between the two adjustable belt limiting devices and the belt pulley is changed, the belt pulley can be sleeved with transmission belts with different width sizes to perform transmission action, therefore, the application range of the power transmission mechanism for the whole thread rolling machine can be enlarged, so that the power transmission mechanism for the thread rolling machine can use transmission belts with various types and widths by adjusting the two adjustable belt limiting devices;

2. this novel adjustable belt stop device concrete use as follows, when originally cup jointing when carrying out driven driving belt damage fracture on the belt pulley, if the driving belt who does not have this model replaces this moment, can use the driving belt of the different models of width to replace the use through adjusting two adjustable belt stop device, when the driving belt width who replaces the use is wider than the width of original fracture belt, just need make the clearance between the two increase to two adjustable belt stop device outwards regulation this moment, thereby make the substitute belt of width broad cup joint and carry out the transmission on the belt pulley completely, take the adjustable belt stop device of regulation belt pulley right-hand member as an example, only need cup joint the regulation fixing bolt regulation head outside and the counter-clockwise turning on the belt limit plate outer wall to the spanner in proper order this moment, and counter-clockwise turning's regulation fixing bolt is because its threaded end is fixed at the inside regulation of belt pulley right-hand member outer wall The threaded end of the adjusting and fixing bolt is slowly withdrawn from the inner part of the adjusting and fixing screw hole through the thread action of the joint and the fixing screw hole, thereby the gap between the belt limiting disc and the belt disc is enlarged when the belt limiting disc and the belt disc are fixedly connected, then the adjustable belt limiting devices at the left ends of the belt discs are adjusted in the same way, so that the gap distance between the belt limiting discs on the two adjustable belt limiting devices is opposite to the width of the substitute transmission belt with wider width, so that the substitute driving belt with wider width can be completely sleeved on the belt pulley for driving, meanwhile, the substitute transmission belt with wider width is blocked by the two belt limiting discs during transmission and cannot be separated from the belt discs, therefore, the purpose that the power transmission mechanism for the thread rolling machine can use transmission belts with various types and widths is achieved.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description, do not constitute a limitation of the invention, in which:

fig. 1 is a schematic view of a three-dimensional structure of a power transmission mechanism for a thread rolling machine according to the present invention;

FIG. 2 is a schematic view of a planar structure of a power transmission mechanism for a thread rolling machine according to the present invention;

fig. 3 is a schematic structural view of the adjustable belt limiting device of the present invention;

in the figure: 1. a belt pulley; 2. an adjustable belt limiting device; 3. heat dissipation holes; 4. a heat dissipation plate; 5. mounting a bearing; 6. a drive shaft; 7. a deflection drive plate; 8. a connecting shaft; 9. a prismatic shaft hole; 10. fixing the screw rod; 11. a prismatic shaft; 12. fixing the threaded sleeve; 13. a connecting rod; 14. a blocking sleeve; 15. connecting sleeves; 16. adjusting the fixed screw hole; 17. a belt limiting disc; 18. adjusting the fixing bolt; 19. and fixing the jack.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: a power transmission mechanism for a thread rolling machine comprises a heat dissipation disc 4 and a transmission shaft 6, wherein the transmission shaft 6 is transversely installed at the right end of the heat dissipation disc 4, heat dissipation holes 3 are transversely formed in the heat dissipation disc 4 close to the outer side and are transversely and internally provided with heat dissipation holes 3, a belt disc 1 is sleeved outside the circumference of the heat dissipation disc 4, the left end and the right end of the belt disc 1 are respectively provided with an adjustable belt limiting device 2, the clearance distance between the two adjustable belt limiting devices 2 and the belt disc 1 can be changed by outwards or inwards adjusting the two adjustable belt limiting devices 2, once the clearance distance between the two adjustable belt limiting devices 2 and the belt disc 1 is changed, the belt disc 1 can be sleeved with a plurality of transmission belts with different width sizes for transmission, the application range of the power transmission mechanism for the whole thread rolling machine can be increased, a mounting bearing 5 is sleeved outside the circumference of the middle section of the transmission shaft 6, a connecting shaft 8 which transversely extends rightwards is connected to the outer wall of the right end of the lower side of the deflection transmission disc 7, the connecting shaft 8 and the deflection transmission disc 7 are fixedly connected through welding, a transverse prismatic shaft hole 9 is formed in the center of the heat dissipation disc 4, the leftmost end of the transmission shaft 6 is connected with a connecting rod 13, a blocking sleeve 14 is sleeved outside the circumference of the connecting rod 13, the cross sections of the fixed screw sleeve 12 and the blocking sleeve 14 are respectively regular hexagon and circular, the maximum width of the cross section of the fixed screw sleeve 12 is opposite to the diameter of the cross section of the blocking sleeve 14, the maximum width of the cross section of the fixed screw sleeve 12 and the diameter of the cross section of the blocking sleeve 14 are both larger than the maximum width of the cross section of the prismatic shaft hole 9, so that when the fixed screw sleeve 12 is sleeved outside a fixing screw 10 at the left end of a prismatic shaft lever 11, the fixed screw sleeve 12 is firmly screwed, and the blocking sleeve 14 is firmly clamped and tightly, therefore, the heat dissipation disc 4 can be firmly fixed by the fixing thread sleeve 12 and the blocking sleeve 14, the left end of the connecting rod 13 is connected with the prismatic shaft rod 11, the prismatic shaft rod 11 is arranged inside the perimeter of the prismatic shaft hole 9, the cross-sectional shapes of the prismatic shaft hole 9 and the prismatic shaft rod 11 are both regular hexagons, the prismatic shaft hole 9 can be tightly sleeved outside the perimeter of the prismatic shaft rod 11 in a seaming manner, the prism can prevent the belt disc 1 from deflecting and slipping when driving the transmission shaft 6 to rotate at a high speed, so that the belt disc 1 can drive the transmission shaft 6 and a thread rolling mechanism on a thread rolling machine to work at a high speed and stably, the left end of the prismatic shaft rod 11 is connected with the fixing screw rod 10, the fixing screw rod 10 is arranged outside the outer wall of the left end of the heat dissipation disc 4, the blocking sleeve 14 is arranged outside the outer wall of the right end of the heat dissipation disc 4, the fixing, the outer wall of the left end, close to the upper side, of the deflection transmission disc 7 is connected with a connecting sleeve 15 with a left opening, the connecting sleeve 15 is sleeved outside the rightmost end of the transmission shaft 6, and the connecting sleeve 15 is fixedly connected with the transmission shaft 6 through a nut.

A power transmission mechanism for a thread rolling machine is characterized in that adjusting and fixing screw holes 16 with outward openings are respectively arranged inside the outer walls of the circumferences of the left end and the right end of a belt pulley 1, belt limiting discs 17 are respectively arranged on two adjustable belt limiting devices 2, fixing insertion holes 19 are respectively arranged inside the two belt limiting discs 17 close to the outer sides and the transverse direction, adjusting and fixing bolts 18 are connected inside the circumferences of the fixing insertion holes 19, the two belt limiting discs 17 are respectively fixedly connected with the belt pulley 1 through the adjusting and fixing bolts 18, the opposite ends of the adjusting and fixing bolts 18 on the two belt limiting discs 17 are respectively arranged inside the circumferences of the adjusting and fixing screw holes 16 at the left end and the right end of the belt pulley 1, the two adjustable belt limiting devices 2 are respectively provided, the shape, the size and the structure of the two adjustable belt limiting devices 2 are the same, the two adjustable belt limiting devices 2 are kept in, the maximum distance of the two adjustable belt limiting devices 2 which are outwards adjusted at the left end and the right end of the belt pulley 1 through the adjusting fixing bolts 18 is one centimeter, when in operation, a wrench only needs to be sequentially sleeved outside the adjusting fixing bolt 18 adjusting head on the outer wall of the belt limiting disc 17 and rotates anticlockwise, the adjusting fixing bolt 18 rotating anticlockwise is fixed inside the adjusting fixing screw hole 16 inside the outer wall of the right end of the belt pulley 1 through the screw thread action, so that the screw thread end of the adjusting fixing bolt 18 is slowly withdrawn from the inside of the adjusting fixing screw hole 16 through the screw thread action, the gap between the belt limiting disc 17 and the belt pulley 1 is increased while the two are fixedly connected, then the adjustable belt limiting devices 2 at the left end of the belt pulley 1 are adjusted in the same way, the gap distance between the belt limiting discs 17 on the two adjustable belt limiting devices 2 is opposite to the width of the substitute transmission belt with wider width at present, therefore, the substitute transmission belt with wide width at present can be completely sleeved on the belt pulley 1 for transmission, meanwhile, the substitute transmission belt with wide width is blocked by the two belt limiting discs 17 during transmission and cannot be separated from the belt pulley 1, six adjusting fixing screw holes 16 with outward openings are uniformly distributed inside the outer walls of the circumferences of the left end and the right end of the belt pulley 1 respectively, six fixing insertion holes 19 are formed inside the circumference of the outer side of each of the two belt limiting discs 17, the six adjusting fixing screw holes 16 inside the left end and the right end of the belt pulley 1 respectively keep transverse coincidence with the circle centers of the six fixing insertion holes 19 inside the two belt limiting discs 17, the inner walls of the circumferences of the two belt limiting discs 17 are kept parallel and level with the inner wall of the circumference of the belt pulley 1, and the outer walls of the circumferences of the two belt limiting discs 17 are higher than the outer wall.

The utility model discloses a theory of operation and use flow: after the utility model is installed, when in use, the transmission shaft 6 is firstly installed and fixed on a preset installation position on the thread rolling machine through the installation bearing 5 sleeved outside the transmission shaft 6, then the connecting sleeve 15 on the outer wall of the left end of the deflection transmission disc 7 is sleeved outside the circumference of the rightmost end of the transmission shaft 6, then the transmission shaft 6 is fixedly connected with the connecting sleeve 15 through the nut, then the thread rolling mechanism on the thread rolling machine is fixedly connected with the connecting shaft 8 on the outer wall of the right end of the deflection transmission disc 7, then the blocking sleeve 14 is firstly sleeved outside the circumference of the connecting rod 13 at the left end of the transmission shaft 6, then the prismatic shaft hole 9 inside the center of the heat dissipation disc 4 is sleeved outside the prismatic shaft 11 connected with the left end of the connecting rod 13, finally the fixed screw sleeve 12 is sleeved outside the fixed screw rod 10 at the left end of the prismatic shaft 11, and the fixed screw sleeve 12 needs to be firmly screwed, the fixed threaded sleeve 12 and the blocking sleeve 14 are firmly clamped and abutted to the outer walls of the left end and the right end of the heat dissipation disc 4 respectively, the heat dissipation disc 4 is firmly fixed, then the transmission belt on the external transmission motor is sleeved outside the circumference of the belt disc 1 outside the heat dissipation disc 4, so that the external transmission motor drives the belt disc 1 to rotate through the transmission belt, the belt disc 1 drives the thread rolling mechanism on the thread rolling machine to work through the transmission of the transmission shaft 6 and the deflection transmission disc 7, the belt disc 1 on the power transmission mechanism of the thread rolling machine is improved, the traditional integral belt disc 1 is improved into a split type belt disc 1 which is combined with two adjustable belt limiting devices 2, wherein the novel belt disc 1 is still used for sleeving a belt to perform transmission, and the two adjustable belt limiting devices 2 are respectively connected to the left end and the right end of the belt disc 1 to limit and block the transmission belt sleeved on the belt disc 1, and two adjustable belt stop device with adjustable neotype still have the regulating action on guaranteeing the original basis of restriction driving belt effect, can change the clearance distance between both and the belt pulley 1 through outwards or inwards adjusting two adjustable belt stop device 2, and in case the clearance distance between two adjustable belt stop device 2 and the belt pulley 1 changes just can be so that the belt pulley 1 goes up can be cup jointed the driving belt of multiple different width sizes and carry out the transmission effect, can increase whole range of application of power transmission mechanism for the machine of rubbing one's teeth with the hands like this.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a power transmission mechanism for thread rolling machine, includes heat dissipation dish (4) and transmission shaft (6), its characterized in that: the heat dissipation disc is characterized in that the transmission shaft (6) is transversely installed at the right end of the heat dissipation disc (4), heat dissipation holes (3) are arranged in the heat dissipation disc (4) close to the outer side of the heat dissipation disc in the transverse inner portion, a belt disc (1) is sleeved outside the circumference of the heat dissipation disc (4), adjustable belt limiting devices (2) are arranged at the left end and the right end of the belt disc (1), an installation bearing (5) is sleeved outside the circumference of the middle section of the transmission shaft (6), the rightmost end of the transmission shaft (6) is connected with a deflection transmission disc (7), the deflection transmission disc (7) is connected with a connecting shaft (8) transversely extending rightwards close to the outer wall of the lower right end of the transmission shaft, the connecting shaft (8) is fixedly connected with the deflection transmission disc (7) through welding, outward-opening adjusting fixing screw holes (16) are formed in the outer walls of the circumferences of the left end, two spacing dish of belt (17) leans on the horizontal inside in outside all to be provided with fixed jack (19), the circumference internal connection of fixed jack (19) has regulation fixing bolt (18), two spacing dish of belt (17) all through adjusting fixing bolt (18) and belt pulley (1) fixed connection, two the subtend end of regulation fixing bolt (18) on the spacing dish of belt (17) all sets up the circumference inside adjusting fixed screw (16) at both ends about belt pulley (1).

2. The power transmission mechanism for the thread rolling machine according to claim 1, wherein: a transverse prismatic shaft hole (9) is arranged inside the center of the heat dissipation disc (4), the leftmost end of the transmission shaft (6) is connected with a connecting rod (13), a blocking sleeve (14) is sleeved outside the circumference of the connecting rod (13), the left end of the connecting rod (13) is connected with a prismatic shaft rod (11), the prismatic shaft rod (11) is arranged inside the circumference of the prismatic shaft hole (9), the left end of the prismatic shaft rod (11) is connected with a fixing screw rod (10), the fixing screw rod (10) is arranged outside the outer wall of the left end of the heat dissipation disc (4), the blocking sleeve (14) is arranged outside the outer wall of the right end of the heat dissipation disc (4), a fixing threaded sleeve (12) is sleeved outside the circumference of the fixing screw rod (10), a connecting sleeve (15) with a left opening is connected to the outer wall of the left end of the upper side of the deflection transmission disc (7), and the connecting sleeve (15) is sleeved outside the rightmost end of, the connecting sleeve (15) is fixedly connected with the transmission shaft (6) through a nut.

3. The power transmission mechanism for the thread rolling machine according to claim 1, wherein: belt stop device (2) with adjustable are provided with two altogether, two the shape size and the structure of belt stop device (2) with adjustable constitute homoenergetic, two belt stop device (2) with adjustable keep relative parallel state, two at both ends about belt pulley (1) belt pulley (2) with adjustable is the maximum distance of both ends outside regulation about belt pulley (1) through adjusting fixing bolt (18) for one centimetre.

4. The power transmission mechanism for the thread rolling machine according to claim 1, wherein: belt pulley (1) is controlled inside both ends circumference outer wall and is equallyd divide and do not be provided with six openings outside regulation fixed screw (16), two spacing dish (17) of belt leans on outside circumference inside to be provided with six fixed jack (19) respectively, the inside each six regulation fixed screw (16) in both ends about belt pulley (1) all keep horizontal coincidence, two with the centre of a circle of two spacing dish (17) inside each six fixed jack (19) of belt respectively the circumference inner wall of the spacing dish (17) of belt all keeps the parallel and level, two with belt pulley (1) circumference inner wall the circumference outer wall of the spacing dish (17) of belt all exceeds the circumference outer wall of belt pulley (1).

5. The power transmission mechanism for the thread rolling machine according to claim 2, wherein: the cross-sectional shapes of the prismatic shaft hole (9) and the prismatic shaft lever (11) are regular hexagons, and the prismatic shaft hole (9) can be tightly sleeved outside the perimeter of the prismatic shaft lever (11) in a sewing mode.

6. The power transmission mechanism for the thread rolling machine according to claim 2, wherein: the cross-sectional shapes of the fixed threaded sleeve (12) and the blocking sleeve (14) are respectively regular hexagon and circular, the maximum width of the cross section of the fixed threaded sleeve (12) is opposite to the diameter of the cross section of the blocking sleeve (14), and the maximum width of the cross section of the fixed threaded sleeve (12) and the diameter of the cross section of the blocking sleeve (14) are both larger than the maximum width of the cross section of the prismatic shaft hole (9).