CN214118877U

CN214118877U - Ball screw with extension formula function

Info

Publication number: CN214118877U
Application number: CN202021622772.6U
Authority: CN
Inventors: 孟雷; 李政霖
Original assignee: Suzhou Enzhuoer Precision Machinery Co ltd
Current assignee: Suzhou Enzhuoer Precision Machinery Co ltd
Priority date: 2020-08-06
Filing date: 2020-08-06
Publication date: 2021-09-03
Anticipated expiration: 2030-08-06

Abstract

The utility model discloses a ball screw with extension formula function, concretely relates to ball screw technical field, including the lead screw axle, one side of lead screw axle is provided with the extension shaft, first cylinder hole has been seted up to one side of the relative extension shaft of lead screw axle, first through-hole has been seted up to one side that the lead screw axle is adjacent with first cylinder hole, the second cylinder hole has been seted up to one side of the relative lead screw axle of extension shaft, the second through-hole has been seted up to one side that the extension shaft is adjacent with first cylinder hole, and the second through-hole runs through to the other end of extension shaft, first through-hole all sets up to "ten" style of calligraphy with the perpendicular cross sectional shape of second through-hole, be provided with coupling mechanism between lead screw axle and the extension shaft. The utility model has the advantages of simple and reasonable design, be convenient for come ball screw extension as required, be difficult to take place moreover to drop, and is firm reliable, has increased ball screw's function, has improved ball screw's application range and practicality.

Description

Ball screw with extension formula function

Technical Field

The utility model relates to a ball screw technical field, more specifically says, the utility model relates to a ball screw with extension formula function.

Background

The ball screw is an ideal product for converting rotary motion into linear motion or converting linear motion into rotary motion, is the most commonly used transmission element on tool machinery and precision machinery, has the main function of converting rotary motion into linear motion or converting torque into axial repeated acting force, has the characteristics of high precision, reversibility and high efficiency, is widely applied to various industrial equipment and precision instruments due to small friction resistance, and consists of a screw, a nut, a steel ball, a prepressing piece, a reverser and a dust remover.

The ball screw is applied to a plurality of industries, some industries need short ball screws, some industries need long ball screws, the thread length is equal to effective stroke + nut length + design allowance, the ball screw produced by each company basically has own standard size, so that the stock is conveniently made, the goods are delivered in time, the ball screw with different sizes needs to be customized, the construction period is greatly prolonged, and the ball screw with the lengthening function is needed.

SUMMERY OF THE UTILITY MODEL

In order to overcome the above-mentioned defect of prior art, the embodiment of the utility model provides a ball screw with extension formula function, through setting up ball screw one end into can extend the long structure, structural design is simple reasonable, is difficult to drop to solve the problem of proposing in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a ball screw with a lengthening function comprises a screw shaft, wherein a lengthening shaft is arranged on one side of the screw shaft, a first cylindrical hole is formed in one side, opposite to the lengthening shaft, of the screw shaft, a first through hole is formed in one side, adjacent to the first cylindrical hole, of the screw shaft, a second cylindrical hole is formed in one side, opposite to the screw shaft, of the lengthening shaft, a second through hole penetrates through one side, adjacent to the first cylindrical hole, of the lengthening shaft, the vertical cross sections of the first through hole and the second through hole are both in a cross shape, a connecting mechanism is arranged between the screw shaft and the lengthening shaft, and the screw shaft and the lengthening shaft are connected through the connecting mechanism;

the connecting mechanism comprises a connecting rod, a first cylinder and a second cylinder are fixedly connected to the outer wall of the middle of the connecting rod, the first cylinder is fixedly connected with the second cylinder, the first cylinder is matched with the first cylinder in a structure mode, the second cylinder is matched with the second cylinder in a structure mode, the vertical cross section of the connecting rod is arranged to be in a cross shape, one end, close to the first cylinder, of the connecting rod is matched with the structure of the first through hole, one end, close to the second cylinder, of the connecting rod is matched with the structure of the second through hole, and two sets of clamping parts are fixedly arranged inside the first cylinder and the second cylinder.

In a preferred embodiment, two sets of chucking parts set up relatively, chucking parts includes solid fixed cylinder, gu fixed cylinder is fixed to be inlayed in the inside of first cylinder or second cylinder, gu fixed cylinder is inside fixed being provided with telescopic cylinder, telescopic cylinder's top is provided with the telescopic link, telescopic cylinder and telescopic link's structure phase-match, the middle part outer wall fixedly connected with of telescopic link removes the dish, the junction that removes dish and solid fixed cylinder inner wall is provided with a plurality of steel ball, it is provided with powerful spring to remove to fix between dish and the solid fixed cylinder.

In a preferred embodiment, the telescopic rod penetrates through the fixed cylinder, and the bottom ends of the first cylindrical hole and the second cylindrical hole are both provided with a clamping groove, and the clamping groove is matched with one end of the telescopic rod.

In a preferred embodiment, one end of the connecting rod, which is close to the second column body, is fixedly connected with a screw, one end of the screw is provided with a nut, the screw is matched with the nut in structure, and a rubber pad is arranged between the screw and the nut.

In a preferred embodiment, the end of the connecting rod near the second column has the same length as the second through hole.

In a preferred embodiment, a nut is rotatably connected to the middle of the screw shaft, and a rolling steel ball is arranged at the connection position of the nut and the screw shaft.

In a preferred embodiment, end caps are connected to both ends of the nut, and a sealing gasket is arranged between the nut and the end caps.

In a preferred embodiment, the top end of the nut is provided with an oil hole.

The utility model discloses a technological effect and advantage:

1. the connecting mechanism is arranged, the screw shaft and the lengthened shaft are connected through the connecting rod, the screw shaft and the lengthened shaft can be connected very tightly, the clamping component is arranged, the screw shaft and the lengthened shaft are fixedly connected, the use is not influenced due to the fact that lines on the outer surface of the screw shaft and the lengthened shaft are matched, then the screw cap and the screw rod are locked, the connecting rod can be locked by the screw cap due to the arrangement of the rubber pad, the connection mode of the lengthened shaft and the screw shaft is further enabled to be more tight and not to fall off easily, the lengthened shaft and the screw shaft cannot rotate due to the fact that the vertical cross section of the connecting rod is arranged in a cross shape, the use is not influenced, the structural design is simple, the operation is convenient, the effect of lengthening the ball screw is achieved, and the connecting rod is firm and reliable and is not prone to falling off;

2. the end covers and the sealing gaskets are arranged at the two ends of the nut, so that the interior of the nut is set to be a sealed environment, dust is prevented from entering the interior of the nut and easily damaging the ball screw, lubricating oil can be added into the oil holes, the nut and the screw shaft are convenient to rub more firmly, friction is reduced, use is convenient, and labor of an operator is reduced.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic view of the overall structure of the present invention.

Fig. 3 is a schematic structural diagram of a position a in fig. 1 according to the present invention.

Fig. 4 is a schematic structural diagram of the position B in fig. 1 according to the present invention.

Fig. 5 is a schematic structural diagram of the position C in fig. 1 according to the present invention.

Fig. 6 is a schematic structural view of the clamping member of the present invention.

The reference signs are: 1. a screw shaft; 2. lengthening a shaft; 3. a first cylindrical bore; 4. a second cylindrical bore; 5. A first through hole; 6. a second through hole; 7. a connecting rod; 8. a first column; 9. a second cylinder; 10. a fixed cylinder; 11. a telescopic cylinder; 12. a telescopic rod; 13. a movable tray; 14. a steel ball; 15. a strong spring; 16. A card slot; 17. a screw; 18. a nut; 19. a rubber pad; 20. a nut; 21. a sealing gasket; 22. an end cap; 23. rolling the steel ball; 24. and an oil hole.

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.

The ball screw with the lengthening function as shown in fig. 1-6 comprises a screw shaft 1, wherein a lengthening shaft 2 is arranged on one side of the screw shaft 1, a first cylindrical hole 3 is formed in one side of the screw shaft 1, which is opposite to the lengthening shaft 2, a first through hole 5 is formed in one side of the screw shaft 1, which is adjacent to the first cylindrical hole 3, a second cylindrical hole 4 is formed in one side of the lengthening shaft 2, which is opposite to the screw shaft 1, a second through hole 6 is formed in one side of the lengthening shaft 2, which is adjacent to the first cylindrical hole 3, in a penetrating manner, the vertical cross sections of the first through hole 5 and the second through hole 6 are both in a cross shape, a connecting mechanism is arranged between the screw shaft 1 and the lengthening shaft 2, and the screw shaft 1 is connected with the lengthening shaft 2 through the connecting mechanism;

coupling mechanism includes connecting rod 7, the first cylinder 8 of middle part outer wall fixedly connected with and the second cylinder 9 of connecting rod 7, first cylinder 8 and second cylinder 9 fixed connection, the structure phase-match of first cylinder 8 and first cylinder hole 3, the structure phase-match of second cylinder 9 and second cylinder hole 4, the perpendicular cross sectional shape of connecting rod 7 sets up to "ten" style of calligraphy, connecting rod 7 is close to the one end of first cylinder 8 and the structure phase-match of first through-hole 5, connecting rod 7 is close to the one end of second cylinder 9 and the structure phase-match of second through-hole 6, first cylinder 8 all is fixed with two sets of chucking parts with the inside of second cylinder 9.

Further, two sets of chucking parts set up relatively, the chucking part includes solid fixed cylinder 10, gu fixed cylinder 10 is fixed to be inlayed in the inside of first cylinder 8 or second cylinder 9, gu fixed cylinder 10 is inside fixed being provided with telescopic cylinder 11, telescopic cylinder 11's top is provided with telescopic link 12, telescopic cylinder 11 and telescopic link 12's structure phase-match, the middle part outer wall fixedly connected with shifting disk 13 of telescopic link 12, shifting disk 13 is provided with a plurality of steel ball 14 with the junction of solid fixed cylinder 10 inner wall, the fixed powerful spring 15 that is provided with between shifting disk 13 and the solid fixed cylinder 10, in order to make lead screw axle 1 be connected with extension shaft 2.

Further, the telescopic link 12 runs through to the outside of fixed section of thick bamboo 10, and draw-in groove 16 has all been seted up to the bottom in first cylinder hole 3 and second cylinder hole 4, the one end phase-match of draw-in groove 16 and telescopic link 12 to draw-in groove 16 just in time block with telescopic link 12 one end, make extension 2 and lead screw axle 1 zonulae occludens.

Further, one end of the connecting rod 7 close to the second column 9 is fixedly connected with a screw rod 17, one end of the screw rod 17 is provided with a nut 18, the screw rod 17 is matched with the nut 18 in structure, and a rubber pad 19 is arranged between the screw rod 17 and the nut 18, so that the extension shaft 2 is locked more, and the extension shaft 2 is connected with the screw rod shaft 1 more tightly.

Furthermore, one end of the connecting rod 7 close to the second column 9 is the same as the second through hole 6 in length, the nut 20 is rotatably connected to the middle of the screw shaft 1, and a rolling steel ball 23 is arranged at the joint of the nut 20 and the screw shaft 1, so that the screw 17 arranged at one end of the connecting rod 7 just completely extends out of the other end of the extension shaft 2.

Furthermore, both ends of the nut 20 are connected with end covers 22, a sealing washer 21 is arranged between the nut 20 and the end covers 22, and an oil hole 24 is formed in the top end of the nut 20, so that the interior of the nut 20 is set to be a sealed environment, dust is prevented from entering the interior of the nut 20, the ball screw is easy to damage, lubricating oil can be added into the oil hole 24, the nut 20 and the screw shaft 1 are more wear-resistant, friction is reduced, and the use is convenient.

The utility model discloses the theory of operation: by arranging the connecting mechanism, the screw rod shaft 1 is connected with the lengthened shaft 2 by the connecting rod 7, one end of the connecting rod 7 is firstly inserted into the screw rod shaft 1, the structure of the connecting rod is matched with that of the first cylinder 8 through the first cylindrical hole 3, one end of the connecting rod 7 is matched through the first through hole 5, the other end of the connecting rod 7 is inserted into the lengthened shaft 2, the structure of the connecting rod is matched with that of the second cylinder 9 through the second cylindrical hole 4, the other end of the connecting rod 7 is matched through the second through hole 6, the structural design is very precise, so that the connecting rod 7 is very tightly connected with the screw rod shaft 1 and the lengthened shaft 2, then the telescopic rod 12 is pressed down by arranging the clamping part, the strong spring 15 is stressed and compressed until one end of the telescopic rod 12 enters the clamping groove 16, the strong spring 15 releases pressure and is just clamped with the clamping groove 16, and the screw rod shaft 1 is tightly connected with the lengthened shaft 2, because the thread phase-match of the appearance of screw shaft 1 and extension shaft 2, so do not influence the use, after the assembly, because the connecting rod 7 is close to the one end of second cylinder 9 and is the same with the length of extension shaft 2, so the screw 17 of connecting rod 7 one end stretches out the other end of extension shaft 2 completely just, then lock through nut 18, the setting of rubber pad 19 can make nut 18 lock connecting rod 7 more, further fixed extension shaft 2, further make extension shaft 2 be connected inseparabler with screw shaft 1, owing to set up the vertical cross sectional shape of connecting rod 7 to "ten" style of calligraphy, can make extension shaft 2 and screw shaft 1 can not take place to rotate, do not influence the use.

The points to be finally explained are: first, in the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" should be understood broadly, and may be a mechanical connection or an electrical connection, or a communication between two elements, and may be a direct connection, and "upper," "lower," "left," and "right" are only used to indicate a relative positional relationship, and when the absolute position of the object to be described is changed, the relative positional relationship may be changed;

secondly, the method comprises the following steps: in the drawings of the disclosed embodiments of the present invention, only the structures related to the disclosed embodiments are referred to, and other structures can refer to the common design, and under the condition of no conflict, the same embodiment and different embodiments of the present invention can be combined with each other;

and finally: the above description is only for the preferred embodiment of the present invention and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A ball screw with an extended function, comprising a screw shaft (1), characterized in that: a lengthened shaft (2) is arranged on one side of the screw shaft (1), a first cylindrical hole (3) is formed in one side, opposite to the lengthened shaft (2), of the screw shaft (1), a first through hole (5) is formed in one side, adjacent to the first cylindrical hole (3), of the screw shaft (1), a second cylindrical hole (4) is formed in one side, opposite to the screw shaft (1), of the lengthened shaft (2), a second through hole (6) penetrates through one side, adjacent to the first cylindrical hole (3), of the lengthened shaft (2), the vertical cross sections of the first through hole (5) and the second through hole (6) are all in a cross shape, a connecting mechanism is arranged between the screw shaft (1) and the lengthened shaft (2), and the screw shaft (1) and the lengthened shaft (2) are connected through the connecting mechanism;

the connecting mechanism comprises a connecting rod (7), a first cylinder (8) and a second cylinder (9) are fixedly connected to the outer wall of the middle of the connecting rod (7), the first cylinder (8) is fixedly connected with the second cylinder (9), the first cylinder (8) is matched with the structure of the first cylinder hole (3), the second cylinder (9) is matched with the structure of the second cylinder hole (4), the vertical section of the connecting rod (7) is shaped like a cross, one end, close to the first cylinder (8), of the connecting rod (7) is matched with the structure of the first through hole (5), one end, close to the second cylinder (9), of the connecting rod (7) is matched with the structure of the second through hole (6), and two sets of clamping components are fixedly arranged inside the first cylinder (8) and the second cylinder (9).

2. The ball screw with the elongated function according to claim 1, wherein: two sets of the chucking part sets up relatively, the chucking part includes solid fixed cylinder (10), gu fixed cylinder (10) are fixed inlays in the inside of first cylinder (8) or second cylinder (9), gu fixed cylinder (10) are inside fixed to be provided with telescopic cylinder (11), the top of telescopic cylinder (11) is provided with telescopic link (12), telescopic cylinder (11) and the structure phase-match of telescopic link (12), the middle part outer wall fixedly connected with of telescopic link (12) removes dish (13), the junction that removes dish (13) and solid fixed cylinder (10) inner wall is provided with a plurality of steel ball (14), it is provided with powerful spring (15) to remove between dish (13) and solid fixed cylinder (10) fixed.

3. The ball screw with the elongated function according to claim 2, wherein: the telescopic rod (12) penetrates through the fixed cylinder (10) to the outside, clamping grooves (16) are formed in the bottom ends of the first cylindrical hole (3) and the second cylindrical hole (4), and the clamping grooves (16) are matched with one end of the telescopic rod (12).

4. The ball screw with the elongated function according to claim 1, wherein: one end fixedly connected with screw rod (17) that connecting rod (7) are close to second cylinder (9), the one end of screw rod (17) is provided with nut (18), the structure phase-match of screw rod (17) and nut (18), be provided with rubber pad (19) between screw rod (17) and nut (18).

5. The ball screw with the elongated function according to claim 1, wherein: and one end of the connecting rod (7) close to the second column body (9) is as long as the second through hole (6).

6. The ball screw with the elongated function according to claim 1, wherein: the middle part of the screw rod shaft (1) is rotatably connected with a nut (20), and a rolling steel ball (23) is arranged at the joint of the nut (20) and the screw rod shaft (1).

7. The ball screw with the elongated function according to claim 6, wherein: both ends of nut (20) all are connected with end cover (22), be provided with seal ring (21) between nut (20) and end cover (22).

8. The ball screw with the elongated function according to claim 6, wherein: the top end of the nut (20) is provided with an oil hole (24).