CN210050267U

CN210050267U - Universal nut device for screw rod transmission

Info

Publication number: CN210050267U
Application number: CN201920697250.3U
Authority: CN
Inventors: 曹远刚
Original assignee: Pangang Group Jiangyou Changcheng Special Steel Co Ltd
Current assignee: Pangang Group Jiangyou Changcheng Special Steel Co Ltd
Priority date: 2019-05-14
Filing date: 2019-05-14
Publication date: 2020-02-11
Anticipated expiration: 2029-05-14

Abstract

The utility model discloses a be used for screw drive's universal nut device, including being used for the cover to be used for connecting the linking frame who treats drive disk assembly outside the lead screw, the last nut support that is equipped with of linking frame, install the nut on the nut support, the nut is used for being connected with the lead screw cooperation, the nut support can be relative the linking frame is in the perpendicular to remove in the axial plane of nut. When the lead screw is subjected to bending deformation, the nut support can move in the direction perpendicular to the axial direction of the nut relative to the frame, certain adjusting capacity is achieved, the lead screw cannot be blocked with driven equipment, the nut can smoothly pass through the lead screw, and normal operation of the equipment is guaranteed. Therefore, the utility model provides a drive relevant device that is used for various lead screws of lead screw drive's universal nut device mainly to solve and certain bending appears, also can be normal has greatly improved equipment uptime, reduces equipment trouble, raises the efficiency, simple structure, and it is very convenient to use.

Description

Universal nut device for screw rod transmission

Technical Field

The utility model relates to a screw drive technical field, more specifically say, relate to a be used for screw drive's universal nut device.

Background

The common lifting device and translation device of mechanical equipment are generally in screw nut transmission, and the nut is directly connected to the related equipment needing to be driven, so that the rotary motion is converted into linear motion, and the translation or lifting of the device is realized. For example, the driving of platforms such as a common planer and a planer milling machine, the lifting driving of an electrode bar of an electroslag furnace in the metallurgical industry, and various lifting platforms are driven by using a screw nut, but the transmission of the screw nut has higher precision requirement, the straightness and coaxiality of the screw nut, the verticality between the nut and the platform and other precision are ensured during installation, and particularly after the screw nut is used for a certain period, the screw rod can generate certain bending deformation, so that the phenomenon of operation jamming between the screw rod and a driven part is caused, and the normal operation of equipment is seriously influenced.

Therefore, how to solve the problem that running jamming is easy to occur in the screw rod transmission process is a problem to be solved urgently by technical personnel in the field at present.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims at providing a universal nut device for screw drive, this universal nut device can normal transmission and use after certain bending deformation appear in the lead screw, and have simple structure, simple to operate and use reliable characteristics.

In order to achieve the above object, the present invention provides the following technical solutions:

the utility model provides a be used for screw drive's universal nut device, is including being used for the cover to treat the linking frame of driver part in the connection outside the lead screw, be equipped with the nut support on the linking frame, install the nut on the nut support, the nut is used for being connected with the lead screw cooperation, the nut support can be relative the linking frame is in the perpendicular to the axial in-plane removal of nut.

Preferably, the connection frame is a rectangular tubular structure, two sides of the connection frame are provided with strip-shaped grooves for mounting the nut support and glands for covering the strip-shaped grooves, and the length direction of the strip-shaped grooves is perpendicular to the axial direction of the nuts.

Preferably, the nut support comprises a support body for mounting a nut and arm rods arranged on two sides of the support body, the arm rods are movably inserted into the strip-shaped grooves, the width of each arm rod is smaller than the length of each strip-shaped groove, and the width of the support body is smaller than the width of the connecting frame.

Preferably, the strip-shaped groove is a rectangular groove, and the arm rod is a cylindrical rod.

Preferably, the gland and the connecting frame are detachably connected through a connecting screw.

Preferably, the nut bracket is provided with a first through hole for the screw rod to pass through and a second through hole for mounting the nut, and the second through hole is perpendicular to the first through hole.

Preferably, the nut clamping device further comprises two movable clamps for clamping the nut, the two movable clamps are oppositely arranged to form an inner hole for clamping the nut and a cylindrical outer wall for being inserted into the second through hole, and the axial direction of the cylindrical outer wall is perpendicular to the axial direction of the inner hole.

Preferably, the nut comprises two half nuts with the same structure, and the two movable clamps are oppositely arranged to clamp and fix the two half nuts in the inner hole.

Preferably, the movable clamp is provided with a set screw for clamping the nut in the inner hole.

Preferably, the two movable clamps are fixedly connected through a connecting bolt.

The utility model provides an universal nut device for screw drive, including being used for the cover to treat the connected frame of drive disk assembly in the connection outside the lead screw and being used for connecting, the last nut support that is equipped with of connected frame, install the nut on the nut support, the nut is used for being connected with the lead screw cooperation, the nut support can be relative the connected frame is in the perpendicular to remove in the axial plane of nut.

In the working process, the nut is arranged on the screw rod, the screw rod drives the nut to rotate so as to enable the nut to move along the axial direction of the screw rod, the nut is arranged on the nut bracket, can drive the nut bracket to move together, the nut bracket drives the connecting frame to move, and then the connecting frame drives the equipment or the part to be driven to move together, during the moving process, when the bending deformation of the screw rod is met, because the nut bracket can move relative to the frame in the direction vertical to the axial direction of the nut, i.e. can move relative to the radial direction of the screw rod, has certain adjusting capacity, and the driven device is directly connected with the connecting frame, i.e., the driven member is spaced from the lead screw, so that, during movement of the nut to accommodate bending deformation of the lead screw, the screw rod can not be blocked with the driven equipment, so that the nut can smoothly pass through the screw rod, and the normal operation of the equipment is ensured.

Therefore, the utility model provides a when being used for various lead screws of lead screw drive universal nut device mainly solve lead screw bending deformation or machining precision not high after certain bending appears, use certain cycle, also can be normal drive relevant device, greatly improved equipment up-stream time, reduce equipment trouble, raise the efficiency, simple structure, it is very convenient to use.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

Fig. 1 is an assembly view of a specific embodiment of the universal nut device according to the present invention;

FIG. 2 is a schematic side view of FIG. 1;

FIG. 3 is a schematic top view of FIG. 1;

FIG. 4 is a schematic front view of the nut bracket;

FIG. 5 is a schematic top view of the nut bracket;

FIG. 6 is a side view of the nut bracket;

FIG. 7 is a front view of the removable clip;

FIG. 8 is a schematic top view of the removable clip;

fig. 9 is a schematic view of the movement of the nut bracket relative to the attachment frame.

The device comprises a connecting frame 1, a connecting bolt 2, a connecting interface 3, a nut 4, a connecting screw 5, a movable clamp 6, a set screw 7, a gland 8, a nut 9, a strip groove 10, an arm rod 11, a bracket body 12, a first through hole 13 and a second through hole 14.

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 core of the utility model is to provide a be used for screw drive's universal nut device, this universal nut device can be normal transmission and use after certain bending deformation appear at the lead screw, and has simple structure, simple to operate and use reliable characteristics.

Referring to fig. 1 to 9, fig. 1 is an assembly view of a universal nut device according to an embodiment of the present invention; FIG. 2 is a schematic side view of FIG. 1; FIG. 3 is a schematic top view of FIG. 1; FIG. 4 is a schematic front view of the nut bracket; FIG. 5 is a schematic top view of the nut bracket; FIG. 6 is a side view of the nut bracket; FIG. 7 is a front view of the removable clip; FIG. 8 is a schematic top view of the removable clip; fig. 9 is a schematic view of the movement of the nut bracket relative to the attachment frame.

The utility model provides a be used for screw drive's universal nut device, including being used for the cover to treat the connected frame 1 of drive disk assembly in the connection outside the lead screw and being used for connecting, be equipped with nut support 4 on the connected frame 1, install nut 9 on the nut support 4, nut 9 is used for being connected with the lead screw cooperation, but nut support 4 relative connected frame 1 removes in the axial plane of perpendicular to nut 9.

Wherein, the connection frame 1 can be a symmetrical tubular structure rolled by a steel plate with the thickness of 20 mm to ensure that the connection frame 1 has enough strength so as to be connected with a part or equipment which needs to be driven, of course, the connection frame 1 can also be formed by welding a plurality of steel plates, and the connection frame can be flexibly arranged according to actual needs. The nut bracket 4 is used for installing and setting the nut 9, and as the nut 9 needs to be matched and connected with the screw rod, a through hole for the screw rod to pass through is arranged at the position where the nut 9 is installed on the nut bracket 4, and the nut bracket 4 can move in a plane perpendicular to the axial direction of the nut 9 relative to the connecting frame 1 so as to drive the nut 9 to move in the connecting frame 1, so that the nut 9 has certain adjusting capacity relative to the connecting frame 1.

In order to facilitate the connection of the connection frame 1 to the components or devices to be driven, corresponding connection interfaces 3 may be provided on the connection frame 1 according to actual needs.

The utility model provides a be used for screw drive's universal nut device, in the in-process of work, install nut 9 on the lead screw, lead screw drive nut 9 is rotatory, so that nut 9 moves along the axial of lead screw, nut 9 installs on nut support 4, can drive nut support 4 and move together, nut support 4 drives linking frame 1 and moves, and then linking frame 1 drives the equipment or the part that need drive and moves together, in the process of moving, when meetting the lead screw and taking place bending deformation, because nut support 4 can move in the direction perpendicular to nut 9 axial relative to the frame, radial movement that can be relative to the lead screw, certain regulating power has, and driven equipment and linking frame 1 lug connection, namely driven piece and lead screw have certain interval, therefore, in the in-process that nut 9 moves in order to adapt to lead screw bending deformation, the screw rod can not be blocked with the driven equipment, so that the nut 9 can smoothly pass through the screw rod, and the normal operation of the equipment is ensured.

In one embodiment of the connection frame 1, it is preferable that the connection frame 1 may have a rectangular cylindrical structure, and a strip groove 10 for mounting the nut bracket 4 and a gland 8 for covering the strip groove 10 are provided at both sides of the connection frame 1, and a length direction of the strip groove 10 is perpendicular to an axial direction of the nut 9, so that the nut bracket 4 can move in the length direction of the strip groove 10 with respect to the connection frame 1. The connecting frame 1 adopting the rectangular cylindrical structure can be conveniently produced and processed, is convenient for connecting equipment needing to be driven,

in an embodiment of the nut bracket 4, preferably, the nut bracket 4 includes a bracket body 12 for mounting the nut 9 and arms 11 disposed on two sides of the bracket body 12, the arms 11 are movably inserted into the strip-shaped grooves 10, a width of the arms 11 is smaller than a length of the strip-shaped grooves 10, and a width of the bracket body 12 is smaller than a width of the connecting frame 1.

Wherein, the armed lever 11 can set up to the structure with bar groove 10 matched with, for example, the armed lever 11 can be the cylinder pole, bar groove 10 can be the rectangular channel, and set up the semicircular chamfer with cylinder pole matched with in the bottom in bar groove 10, because armed lever 11 needs to remove for bar groove 10, therefore, the diameter of armed lever 11 should slightly be less than the width in bar groove 10, at the in-process of installation, can be with 11 cartridge of armed lever of 12 both sides of support body on the bar groove 10 of connecting frame 1 both sides, then cover 8 the tip in bar groove 10 with gland, preferably, gland 8 can dismantle through connecting screw 5 with connecting frame 1 and be connected, with the dismouting of convenient nut support 4 and gland 8.

On the basis of any of the above-described embodiments, in consideration of the specific structural arrangement of the nut holder 4, it is preferable that the nut holder 4 is provided with a first through hole 13 for passing the lead screw therethrough and a second through hole 14 for mounting the nut 9, the second through hole 14 being orthogonal to the first through hole 13. The nut 9 can be set to be a cylindrical structure, the axial direction of the threaded hole of the nut 9 is arranged along the radial direction of the cylindrical nut, so that the cylindrical nut can be inserted into the second through hole 14, and since the nut 9 is connected and matched with the screw rod penetrating through the first through hole 13, and the second through hole 14 is perpendicular and orthogonal to the first through hole 13, the nut 9 can be fixed in the second through hole 14 by the first screw rod, namely the cylindrical nut cannot slide in the second through hole 14.

On the basis of the above embodiment, in order to facilitate the installation and processing of the nut 9, two movable clamps 6 for clamping the nut 9 may be provided, the two movable clamps 6 are oppositely arranged to form an inner hole for clamping the nut 9 and a cylindrical outer wall for being inserted into the second through hole 14, and the axial direction of the cylindrical outer wall is perpendicular to the axial direction of the inner hole. After the two movable clamps 6 are oppositely arranged and combined, the outer walls of the two movable clamps should match with the second through hole 14 so as to insert the movable clamps 6 into the second through hole 14, and the nuts 9 are clamped in the two movable clamps 6, namely, the two movable clamps and the movable clamps 6 can be inserted into the second through hole 14 of the nut bracket 4 together.

In this embodiment, the mode of clamping nut 9 through movable clamp 6 sets up nut 9 on nut support 4, can improve the convenience of nut 9 installation and dismantlement greatly.

On the basis of the above embodiment, in order to facilitate the installation and the disassembly between the nut 9 and the movable clamp 6, the nut 9 may include two half nuts with the same structure, and the two movable clamps 6 are oppositely arranged to clamp and fix the two half nuts in the inner hole. In the installation process, two half nuts are respectively installed on the two movable clamps 6, and then the two movable clamps 6 are fixedly connected, so that the efficiency of fixedly connecting the nuts 9 with the movable clamps 6 can be improved.

In addition to the above-described embodiments, in consideration of the manner of mounting the half nuts on the movable clamp 6, it is preferable that a set screw 7 for tightening the nut 9 in the inner hole be provided on the movable clamp 6. So that during mounting the nut 9 is tightened on the mobile clamp 6 by means of the set screw 7.

On the basis of the above embodiment, considering the fixing manner of the two movable clamps 6, preferably, the two movable clamps 6 can be fixedly connected through the connecting bolt 2, so that when the nut 9 is installed in the movable clamp 6, the two movable clamps 6 are fixedly connected through the connecting bolt 2, so as to firmly clamp the nut 9 in the inner hole formed by the two movable clamps 6, and then the movable clamp 6 is inserted into the second through hole 14 on the nut support 4, so as to achieve the purpose of installing the nut 9 on the nut support 4.

The utility model provides a be used for lead screw drive's universal nut device dismouting very convenient simple, 2 connecting bolt 2 demolishs that 2 activity presss from both sides 6 can unpack apart inner structure, still can unpack gland 8 apart, take out nut support 4 is whole from linking frame 1 translation to make installation, maintenance, change and maintenance all very simple and convenient.

In view of the specific size setting of the universal nut device for screw driving provided by the present invention, for example, the length, width and height of the connecting frame 1 can be 440 × 334 × 220 mm respectively, the internal width of the connecting frame 1 can be 274 mm for installing the nut bracket 4, the maximum width of the nut bracket 4 can be 260 mm, so that the nut bracket 4 can move ± 7 mm along the width direction (X direction) of the connecting frame 1, the width of the strip-shaped groove 10 disposed at both sides of the connecting frame 1 can be 80 mm, so that the moving range of the nut bracket 4 along the length direction (Y direction) of the strip-shaped groove 10 can be ± 40 mm, the above parameters are only used for reference, and the specific size can be flexibly selected according to actual conditions.

The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

It is right above that the utility model provides an universal nut device for screw drive has carried out detailed introduction. The principles and embodiments of the present invention have been explained herein using specific examples, and the above descriptions of the embodiments are only used to help understand the method and its core ideas of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.

Claims

1. The utility model provides a universal nut device for screw drive, its characterized in that, is including being used for the cover to treat the connected frame (1) of drive part in the connection outside the lead screw and being used for connecting, be equipped with nut support (4) on connected frame (1), install nut (9) on nut support (4), nut (9) are used for being connected with the lead screw cooperation, nut support (4) can be relative connected frame (1) is at the perpendicular to the axial in-plane removal of nut (9).

2. The universal nut device according to claim 1, characterized in that the connecting frame (1) is a rectangular cylinder structure, both sides of the connecting frame (1) are provided with a strip-shaped groove (10) for mounting the nut bracket (4) and a gland (8) for covering the strip-shaped groove (10), and the length direction of the strip-shaped groove (10) is perpendicular to the axial direction of the nut (9).

3. The universal nut device according to claim 2, characterized in that the nut support (4) comprises a support body (12) for mounting the nut (9) and arms (11) arranged on both sides of the support body (12), the arms (11) are movably inserted into the strip-shaped groove (10), the width of the arms (11) is smaller than the length of the strip-shaped groove (10), and the width of the support body (12) is smaller than the width of the connecting frame (1).

4. A universal nut device according to claim 3, characterized in that said strip-shaped groove (10) is a rectangular groove and said arm (11) is a cylindrical rod.

5. Universal nut device according to claim 4, characterized in that the gland (8) is detachably connected to the connection frame (1) by means of a connection screw (5).

6. The universal nut device according to any one of claims 1 to 5, characterized in that a first through hole (13) for passing a screw therethrough and a second through hole (14) for mounting the nut (9) are provided on the nut bracket (4), the second through hole (14) being perpendicular to the first through hole (13).

7. The universal nut device according to claim 6, further comprising two movable clamps (6) for clamping the nut (9), wherein the two movable clamps (6) are oppositely arranged to form an inner hole for clamping the nut (9) and a cylindrical outer wall for being inserted into the second through hole (14), and the axial direction of the cylindrical outer wall is perpendicular to the axial direction of the inner hole.

8. The universal nut device according to claim 7, characterized in that said nut (9) comprises two half nuts of the same structure, and two said movable clamps (6) are oppositely arranged to clamp and fix the two half nuts in said inner hole.

9. The universal nut device according to claim 8, characterized in that the movable clamp (6) is provided with a set screw (7) for clamping the nut (9) in the inner bore.

10. The universal nut device according to claim 9, characterized in that the two movable clamps (6) are fixedly connected by means of a connecting bolt (2).