Self-adjusting lubricating power four-head screw rod

Abstract

The utility model discloses a self-adjusting lubricating power four-head screw rod, which relates to the technical field of mechanical transmission, and comprises a screw rod body and a nut cylinder nested on the outer side of the screw rod body, and further comprises a channel assembly, a piston adjusting assembly, a screw rod axial adjusting assembly and a coupler assembly. According to the self-adjusting lubricating structure, lubricating oil can be automatically supplemented and distributed according to the movement of the nut cylinder, the lubricating oil is evenly distributed, the service life is longer, it is guaranteed that the lead screw is well lubricated, the frequency of manual maintenance is reduced, the operation cost of equipment is reduced, and meanwhile the service life of the lead screw and the service life of the nut are effectively prolonged; the screw rod adopts a four-head screw rod structure, so that the linear motion speed of the nut cylinder is greatly improved under the same driving condition, and compared with a traditional single-head screw rod, the screw rod just meets the high-speed and high-efficiency mechanical transmission requirements.

Description

TECHNICAL FIELD

[0001] The utility model relates to mechanical drive technical field, concretely is a kind of self-regulating lubrication power four lead screws. BACKGROUND

[0002] In mechanical transmission structure, lead screw nut mechanism is widely used to realize the conversion of linear motion and rotary motion, the traditional lead screw in running process, often uneven lubrication, wear problem fast, need frequent artificial lubrication maintenance, not only increase the equipment operation cost, also can affect the normal operation of equipment;While traditional single-head lead screw transmission efficiency is poor, it is difficult to meet the needs of high-precision equipment. UTILITY MODEL CONTENTS

[0003] The utility model provides a kind of self-regulating lubrication power four lead screws, with the advantages of self-regulating lubrication and high transmission efficiency, to solve the problem of uneven equipment lubrication and low transmission efficiency.

[0004] To achieve the above object, the utility model provides the following technical scheme: a kind of self-regulating lubrication power four lead screws, including lead screw body and the nut cylinder nested in the outer side of the lead screw body, further including channel assembly, piston adjusting assembly, lead screw axial adjusting assembly and shaft coupling assembly, wherein:

[0005] The lead screw body is a rounded square structure and is provided with a lead screw thread at the rounded corner, and the inner side of the nut cylinder is provided with a plurality of spiral grooves;

[0006] The channel assembly includes a plurality of oil outlets, which are symmetrically arranged above and below the spiral groove, the oil outlet is connected with the lubricating oil channel, and the lubricating oil channel is connected with the oil cavity;

[0007] The piston adjusting assembly includes an annular piston, the annular piston is embedded in the oil cavity and is slidingly fitted, one side of the annular piston is fixed with a push rod, one end of the push rod is welded with a straight plate, the other end of the straight plate is welded with a guide rod, the guide rod is fixedly connected with an electric telescopic rod, the electric telescopic rod is electrically connected with a controller, and the controller is electrically connected with a displacement sensor.

[0008] As a preferred technical scheme of the utility model, the lubricating oil channel and the oil cavity are arranged inside the nut cylinder, and the push rod penetrates one side of the oil cavity and extends to the outside.

[0009] As a preferred technical scheme of the utility model, the nut cylinder is welded with a support frame on the outside, the electric telescopic rod is arranged on the inside of the support frame, and the guide rod is embedded in the support frame and is slidingly fitted.

[0010] As a preferred technical scheme of the utility model, the displacement sensor and the controller are fastened outside the support frame through screws, a plurality of mounting holes are arranged on one end of the nut cylinder, and the screw rod is threadedly embedded in the spiral groove and rotationally matched.

[0011] As a preferred technical scheme of the utility model, a plurality of protrusions are symmetrically arranged on one end of the screw rod body, and the protrusions are embedded in the bearing.

[0012] As a preferred technical scheme of the utility model, the bearing is embedded in the spiral rod at both ends of the bottom, and the spiral rod is rotationally matched, one end of the spiral rod is embedded in the limiting bottom plate and rotationally matched.

[0013] As a preferred technical scheme of the utility model, the shaft coupling assembly comprises a shaft coupling, a spring is connected to the outside of the shaft coupling, the spring is connected to a bolt, the bolt penetrates through one side of the shaft coupling and is slidingly matched, and one end of the bolt is embedded in the screw rod body.

[0014] Compared with the prior art, the utility model provides a self-adjusting lubrication dynamic four-head screw rod, which has the following beneficial effects: the self-adjusting lubrication structure of the utility model can automatically realize the supplement and distribution of lubricating oil according to the movement of the nut cylinder, the lubricating oil is uniformly distributed and has a longer service life, the screw rod is well lubricated, the frequency of manual maintenance is reduced, the equipment operation cost is reduced, and the service life of the screw rod and the nut is effectively prolonged; the four-head screw rod structure of the screw rod greatly improves the linear motion speed of the nut cylinder under the same driving condition, and more rigidly meets the demand of high-speed and efficient mechanical transmission compared with the traditional single-head screw rod. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a whole structure schematic view of the utility model;

[0016] Figure 2 It is a screw rod body structure view of the utility model;

[0017] Figure 3 It is a nut cylinder structure schematic view of the utility model;

[0018] Figure 4 It is a channel assembly structure view of the utility model;

[0019] Figure 5 It is a piston adjusting assembly structure schematic view of the utility model;

[0020] Figure 6 It is a screw rod axial adjusting assembly structure view of the utility model;

[0021] Figure 7 It is a shaft coupling assembly structure view of the utility model.

[0022] In the figure: 1, screw rod body; 2, nut barrel; 3, channel assembly; 4, piston adjusting assembly; 5, screw rod axial adjusting assembly; 6, shaft coupling assembly; 11, screw rod thread; 12, protruding block; 21, helical groove; 22, support frame; 23, mounting hole; 31, oil outlet hole; 32, lubricating oil channel; 33, oil cavity; 41, annular piston; 42, push rod; 43, straight plate; 44, guide rod; 45, electric telescopic rod; 46, controller; 47, displacement sensor; 51, bearing; 52, screw rod; 53, limiting bottom plate; 61, shaft coupling; 62, spring; 63, bolt. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model. Embodiment one

[0024] Please refer to Figures 1-7 The utility model discloses a kind of self-adjusting lubrication power four head screw rods, including screw rod body 1 and the nut barrel 2 nested in the outer side of screw rod body 1, still including channel assembly 3, piston adjusting assembly 4, screw rod axial adjusting assembly 5 and shaft coupling assembly 6, wherein:

[0025] Screw rod body 1 is rounded cube structure and is provided with screw rod thread 11 at rounded corner, and the inner side of nut barrel 2 is provided with a plurality of helical grooves 21;

[0026] Please refer to the attached Figure 4 Channel assembly 3 includes a plurality of oil outlet holes 31, and the oil outlet holes 31 are symmetrically arranged at the helical grooves 21, the oil outlet holes 31 are connected with the lubricating oil channels 32, the lubricating oil channels 32 are connected with the oil cavities 33, specifically, the lubricating oil in the oil cavity 3 is sprayed and sucked back from the oil outlet holes 31, the utilization efficiency and service life of the lubricating oil are improved, and the uneven distribution and deterioration caused by long-term static placement of the lubricating oil outside are avoided.

[0027] Please refer to the attached Figure 5 Piston adjusting assembly 4 includes an annular piston 41, the annular piston 41 is embedded in the oil cavity 33 and is in sliding fit, the push rod 42 is fixed on one side of the annular piston 41, one end of the push rod 42 is welded with the straight plate 43, the other end of the straight plate 43 is welded with the guide rod 44, the guide rod 44 is fixedly connected with the electric telescopic rod 45, the electric telescopic rod 45 is electrically connected with the controller 46, and the controller 46 is electrically connected with the displacement sensor 47.

[0028] The lubricating oil passage 32 and the oil cavity 33 are arranged inside the nut barrel 2, and the push rod 42 penetrates through one side of the oil cavity 33 and extends to the outside.

[0029] In the embodiment, the controller 46 controls the electric telescopic rod 45 to extend and contract according to the position signal of the nut barrel 2 fed back by the displacement sensor 47, the electric telescopic rod 45 drives the push rod 42 at the other end of the straight plate 43 to drive the annular piston 41 to slide in the oil cavity 33, so that the lubricating oil in the oil cavity 33 enters the lubricating oil passage 32 when being extruded, and is sprayed from the oil outlet hole 31 to the matching surface of the screw body 1 and the nut barrel 2, to realize uniform distribution of the lubricating oil; and when the oil cavity 33 loses pressure, the lubricating oil can also be sucked back and stored, to realize self-adjusting lubrication. Embodiment Two

[0030] Based on the above-mentioned embodiment 1, please refer to the attached Figure 3 , Figure 6 and Figure 7 , the support frame 22 is welded outside the nut barrel 2, the electric telescopic rod 45 is arranged inside the support frame 22, and the guide rod 44 is embedded in the support frame 22 and is in sliding fit.

[0031] The displacement sensor 47 and the controller 46 are fastened outside the support frame 22 by screws, and the nut barrel 2 is provided with a plurality of mounting holes 23 at one end, and the screw thread 11 is embedded in the helical groove 21 and is in rotating fit.

[0032] A plurality of protrusions 12 are symmetrically arranged at one end of the screw body 1, and the protrusions 12 are embedded in the bearings 51, specifically, the protrusions 12 are matched with the inner rings of the bearings 51, which can be quickly assembled, and the bearings 51 can improve the rotating efficiency of the screw body 1.

[0033] The helical rods 52 are embedded in the bottom of the bearings 51 and are in helical rotating fit, and the helical rods 52 are embedded in the limiting bottom plates 53 at one end and are in rotating fit.

[0034] The shaft coupling assembly 6 includes a shaft coupling 61, the shaft coupling 61 is connected with a spring 62 outside, the spring 62 is connected with a plug pin 63, the plug pin 63 penetrates through one side of the shaft coupling 61 and is in sliding fit, and the plug pin 63 is embedded in one end of the screw body 1, specifically, the plug pin 63 can freely slide in the shaft coupling 61 under the limitation of the spring 62, which facilitates the installation and disassembly of the screw body 1.

[0035] In the embodiment, the limiting bottom plates 53 below the bearings 51 can be fixed on the equipment by bolts to support the screw body 1, the helical rods 52 and the bottom of the bearings 51 can be relatively displaced by helical action, and then the axial position of the screw body 1 can be adjusted, to ensure the precision of the screw transmission.

[0036] The utility model discloses a working principle and use flow: when using screw rod, first fixed in motor shaft with coupling 61 one end, pull out the bolt 63 and make bolt 63 stretch spring 62, subsequently with screw rod body 1 one end inserts coupling 61, loosen bolt 63 and bind with motor shaft with screw rod body 1;

[0037] Subsequently utilize the protruding block 12 of screw rod body 1 one end and embed bearing 51, and bearing 51 below's spacing bottom plate 53 is fixed on the equipment with bolt and supports screw rod body 1, rotates helical rod 52, and helical rod 52 and bearing 51 bottom pass through helical action and occur relative displacement, and then can adjust the axial position of screw rod body 1, guarantees the precision of screw rod drive;

[0038] Screw rod is in work, and nut cylinder 2 is fixed with the external equipment of need screw rod drive through mounting hole 23, and screw rod body 1 is driven to rotate by motor, and through the interaction of screw rod thread 11 on screw rod body 1 and helical groove 21 of the inside of nut cylinder 2, and then make nut cylinder 2 displace, and the four -head screw rod structure of rounded square makes the linear motion speed of nut accelerate under the same driving condition, and improves transmission efficiency;

[0039] When nut cylinder 2 makes linear motion, displacement sensor 47 follows synchronous movement, and the real -time position signal is transmitted to controller 46, when nut cylinder 2 moves to the side away from oil cavity 33, and controller 46 controls electric telescopic rod 45 to contract, and electric telescopic rod 45 drives push rod 42 of straight plate 43 another end through guide rod 44 and pushes annular piston 41, and annular piston 41 extrudes lubricating oil into lubricating oil channel 32 in oil cavity 33, and finally from oil outlet hole 31 is sprayed to the cooperation surface of screw rod body 1 and nut cylinder 2, realizes the even distribution of lubricating oil, and when nut cylinder 2 moves to the side close to oil cavity 33, and electric telescopic rod 45 lengthens, and then drives piston 41 reverse motion, makes the internal pressure of oil cavity 33 reduce, and makes nut cylinder 2 can utilize oil outlet hole 31 and suck back the sprayed lubricating oil while displacing, avoids the problem that lubricating oil is exposed for a long time outside and needs long-term replacement and maintenance.

Claims

1. A self-adjusting lubricated power four-start screw comprising a screw body (1) and a nut barrel (2) nested outside the screw body (1), characterized in that, Also include channel components (3), piston adjusting components (4), screw axial adjusting components (5) and shaft coupling components (6), wherein: The screw body (1) is a square structure with rounded corners, and the rounded corners are provided with screw threads (11). The inner side of the nut barrel (2) is provided with a plurality of spiral grooves (21). The channel component (3) includes a plurality of oil outlet holes (31), which are symmetrically arranged on the spiral groove (21). The oil outlet hole (31) is connected with the lubricating oil channel (32), and the lubricating oil channel (32) is connected with the oil cavity (33). The piston adjusting component (4) includes an annular piston (41), which is embedded in the oil cavity (33) and is in sliding fit. The annular piston (41) is fixed with a push rod (42) on one side. The push rod (42) is welded with a straight plate (43) at one end. The other end of the straight plate (43) is welded with a guide rod (44). The guide rod (44) is fixedly connected with an electric telescopic rod (45). The electric telescopic rod (45) is electrically connected with a controller (46). The controller (46) is electrically connected with a displacement sensor (47).

2. A self-adjusting lubricated power four-start screw as defined in claim 1, wherein: The lubricating oil channel (32) and the oil cavity (33) are arranged inside the nut barrel (2). The push rod (42) penetrates one side of the oil cavity (33) and extends to the outside.

3. A self-adjusting lubricated power four-start screw as defined in claim 2 wherein: The nut barrel (2) is welded with a support frame (22) on the outside. The electric telescopic rod (45) is arranged inside the support frame (22). The guide rod (44) is embedded in the support frame (22) and is in sliding fit.

4. A self-adjusting lubricated power four-start screw as defined in claim 3 wherein: The displacement sensor (47) and the controller (46) are fastened on the outside of the support frame (22) by screws. One end of the nut barrel (2) is provided with a plurality of mounting holes (23). The screw thread (11) is embedded in the spiral groove (21) and is in rotating fit.

5. A self-adjusting lubricated power four-start screw as defined in claim 1 wherein: One end of the screw body (1) is symmetrically provided with a plurality of protrusions (12). The protrusions (12) are embedded in the bearings (51).

6. A self-adjusting lubricated power four-start screw as defined in claim 5 wherein: The bottom of the bearing (51) is embedded in the spiral rod (52) and is in spiral rotating fit. One end of the spiral rod (52) is embedded in the limiting bottom plate (53) and is in rotating fit.

7. A self-adjusting lubricated power four-start screw as defined in claim 1 wherein: The shaft coupling component (6) includes a shaft coupling (61). The shaft coupling (61) is connected with a spring (62) on the outside. The spring (62) is connected with a latch (63). The latch (63) penetrates one side of the shaft coupling (61) and is in sliding fit. The latch (63) is embedded in one end of the screw body (1).

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