Lead screw nut for transmission of projection platform

Abstract

The utility model discloses a lead screw nut for transmission of a projection platform, which comprises a sleeve and a nut, and the nut can be embedded on the inner wall of the sleeve. Three bearings are arranged on the end face, away from the nut, of the taper sleeve. The end cover is detachably mounted at the end part of the sleeve; a polished rod penetrates through the channel and sequentially penetrates through the nut, the taper sleeve and the end cover; the handle part penetrates through the sleeve and can be embedded in the nut; and the handle part presses the nut, and the taper sleeve can realize the locking and loosening actions of the bearing on the polish rod. The utility model has the following advantages: the polish rod can be quickly locked and loosened through the taper sleeve, the three bearings can be contacted with the polish rod, the polish rod is rotated to achieve the purpose of moving the platform, the locking and loosening formation is adjusted by adjusting the distance between the taper sleeve and the nut, the lead screw nut can flexibly and quickly move the platform, and the working efficiency is improved. And the return error of the threaded screw rod is effectively prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of lead screws, in particular to a lead screw nut used for transmission of a projection platform. Background Art

[0002] The description in this section merely provides background information related to the disclosure of the present utility model and does not constitute prior art.

[0003] Traditional screw drives will cause return errors due to wear of the screw threads over time. Traditional toothless nuts have a complex structure and do not have overload capacity.

[0004] It should be noted that the above introduction to the technical background is only for the convenience of providing a clear and complete description of the technical solutions of the utility model and for the convenience of understanding by those skilled in the art. It cannot be considered that the above technical solutions are well known to those skilled in the art simply because these solutions are described in the background technology section of the utility model. Utility Model Content

[0005] The technical problem to be solved by the utility model is that, in view of the deficiencies of the prior art, a lead screw nut for projection platform transmission is provided, which can flexibly and quickly move the platform and effectively prevent the return error of the threaded lead screw.

[0006] The embodiment of the present application discloses a lead screw nut for projection platform transmission, comprising:

[0007] a sleeve, wherein a passage is formed in the sleeve;

[0008] A nut, which can be embedded on the inner wall of the sleeve;

[0009] A cone sleeve, wherein three bearings are arranged on one end surface of the cone sleeve away from the nut;

[0010] an end cap, the end cap being detachably mounted on an end of the sleeve;

[0011] A polished rod, the polished rod passes through the passage and passes through the nut, the cone sleeve and the end cover in sequence;

[0012] A handle portion, wherein the handle portion passes through the sleeve and can be embedded in the nut;

[0013] The handle part presses the nut, and the tapered sleeve can realize the locking and loosening action of the bearing on the polished rod.

[0014] Furthermore, in the above-mentioned lead screw nut for projection platform transmission, the angle between the three bearings is 60°, and the three bearings are arranged around the outer wall of the polished rod.

[0015] Furthermore, the above-mentioned lead screw nut for transmission of the projection platform is provided with a screw hole.

[0016] Furthermore, in the above-mentioned lead screw nut for projection platform transmission, the sleeve is provided with an oblique groove, and the handle portion passes through the oblique groove and is embedded in the screw hole.

[0017] Furthermore, in the above-mentioned lead screw nut for projection platform transmission, a C-shaped hoop is provided between the tapered sleeve and the nut, the C-shaped hoop is wrapped around the outer wall of the light rod, and one end of the C-shaped hoop is embedded in the nut.

[0018] Furthermore, for the above-mentioned lead screw nut for projection platform transmission, when the handle portion presses the nut in a direction away from the end cover, the three bearings on the tapered sleeve can lock the optical rod; when the handle portion presses the nut in a direction close to the end cover, the three bearings on the tapered sleeve can loosen the optical rod.

[0019] In summary, the above structure adopted in the embodiment of the utility model has the following advantages:

[0020] The lead screw nut for projection platform transmission described in the utility model can quickly lock and loosen the light rod through the tapered sleeve, three bearings can contact the light rod, and the light rod is rotated to achieve the purpose of moving the platform. The locking and loosening formations are adjusted by adjusting the distance between the tapered sleeve and the nut. The lead screw nut can flexibly and quickly move the platform, and the return error of the threaded lead screw is effectively prevented.

[0021] To further understand the features and technical contents of the present invention, please refer to the following detailed description and drawings of the present invention. However, the drawings provided are only for reference and description and are not intended to limit the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of this specification or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this specification. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0023] Figure 1 It is a structural schematic diagram of an embodiment of the utility model.

[0024] The figure numbers of the above drawings are: 1. sleeve; 2. nut; 3. taper sleeve; 4. bearing; 5. end cover; 6. bare rod; 7. handle; 8. screw hole; 9. C-type clamp; 10. bevel groove. DETAILED DESCRIPTION

[0025] In order to enable those skilled in the art to better understand the technical solutions in this specification, the technical solutions in the embodiments of this specification will be clearly and completely described below in conjunction with the drawings in the embodiments of this specification. Obviously, the described embodiments are only part of the embodiments of this specification, not all of the embodiments. Based on the embodiments in this specification, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of this specification.

[0026] The following is an explanation of the implementation of the utility model through specific specific embodiments. Those skilled in the art can understand the advantages and effects of the utility model from the contents disclosed in this specification. The utility model can be implemented or applied through other different specific embodiments, and the details in this specification can also be modified and changed in various ways based on different viewpoints and applications without deviating from the concept of the utility model. In addition, the drawings of the utility model are only simple schematic illustrations and are not depicted according to actual dimensions. It is stated in advance. The following implementation methods will further explain the relevant technical contents of the utility model in detail, but the disclosed contents are not intended to limit the scope of protection of the utility model.

[0027] It should be understood that, although the terms "first", "second", "third", etc. may be used herein to describe various components or signals, these components or signals should not be limited by these terms. These terms are mainly used to distinguish one component from another component, or one signal from another signal. In addition, the term "or" used herein may include any one or more combinations of the associated listed items depending on the actual situation.

[0028] Reference Figure 1 As shown, the embodiment of the present application discloses a lead screw nut for projection platform transmission, comprising:

[0029] A sleeve 1, wherein the sleeve 1 has a passage therein;

[0030] A nut 2, which can be embedded on the inner wall of the sleeve 1;

[0031] A cone sleeve 3, wherein three bearings 4 are arranged on one end surface of the cone sleeve 3 which faces away from the nut 2;

[0032] An end cover 5, wherein the end cover 5 is detachably mounted on the end of the sleeve 1;

[0033] A polished rod 6, the polished rod 6 passes through the passage and passes through the nut 2, the cone sleeve 3 and the end cover 5 in sequence;

[0034] A handle portion 7, wherein the handle portion 7 passes through the sleeve 1 and can be embedded in the nut 2;

[0035] The handle portion 7 presses the nut 2 , and the tapered sleeve 3 can achieve the locking and loosening actions of the bearing 4 on the bare rod 6 .

[0036] Specifically, in this embodiment, the angle between the three bearings 4 is 60°, and the three bearings 4 are arranged around the outer wall of the polished rod 6 .

[0037] Specifically, in this embodiment, a screw hole 8 is provided on the nut 2 .

[0038] Specifically, in this embodiment, an inclined groove 10 is provided on the sleeve 1 , and the handle portion 7 passes through the inclined groove 10 and is embedded in the screw hole 8 .

[0039] Specifically, in the present embodiment, a C-shaped hoop 9 is provided between the cone sleeve 3 and the nut 2 , the C-shaped hoop 9 is wrapped around the outer wall of the bare rod 6 , and one end of the C-shaped hoop 9 is embedded in the nut 2 .

[0040] Specifically, in this embodiment, when the handle portion 7 presses the nut 2 in a direction away from the end cover 5, the three bearings 4 on the tapered sleeve 3 can lock the light rod 6; when the handle portion 7 presses the nut 2 in a direction close to the end cover 5, the three bearings 4 on the tapered sleeve 3 can loosen the light rod 6, thereby rotating the light rod to achieve the purpose of moving the platform.

[0041] By means of the above structure, on the C-shaped clamp 9, the three bearings 4 can contact the light rod 6, and the light rod 6 can be rotated to achieve the purpose of moving the platform. The force of the handle part is adjusted according to the distance between the tapered sleeve and the nut. If the distance between the tapered sleeve 3 and the nut 2 is small, a larger force of the handle part 7 is required for adjustment; if the distance between the tapered sleeve 3 and the nut 2 is large, a smaller force of the handle part 7 is required for adjustment. By adjusting the distance between the tapered sleeve and the nut, the locking and loosening are adjusted. The screw nut in this embodiment can move the platform flexibly and quickly, and effectively prevents the return error of the threaded screw.

[0042] The contents disclosed above are only preferred feasible embodiments of the present utility model, and are not intended to limit the scope of the patent application of the present utility model. Therefore, all equivalent technical changes made using the contents of the specification and drawings of the present utility model are included in the scope of the patent application of the present utility model.

[0043] The various embodiments in this specification are described in a progressive manner, and the same or similar parts between the various embodiments can be referenced to each other. Each embodiment focuses on the differences from other embodiments.

[0044] Although the present application has been described through embodiments, those skilled in the art will appreciate that there are many modifications and changes to the present application without departing from the spirit of the present application. It is intended that the attached embodiments include these modifications and changes without departing from the present application.

Claims

1. A lead screw nut for projection platform transmission, characterized in that: include: a sleeve, wherein a passage is formed in the sleeve; A nut, which can be embedded on the inner wall of the sleeve; A cone sleeve, wherein three bearings are arranged on one end surface of the cone sleeve away from the nut; an end cap, the end cap being detachably mounted on an end of the sleeve; A polished rod, the polished rod passes through the passage and passes through the nut, the cone sleeve and the end cover in sequence; A handle portion, wherein the handle portion passes through the sleeve and can be embedded in the nut; The handle part presses the nut, and the tapered sleeve can realize the locking and loosening action of the bearing on the polished rod.

2. The lead screw nut for projection platform transmission according to claim 1, characterized in that: The angle between the three bearings is 60°, and the three bearings are arranged around the outer wall of the polished rod.

3. The lead screw nut for projection platform transmission according to claim 1, characterized in that: The nut is provided with a screw hole.

4. The lead screw nut for projection platform transmission according to claim 3, characterized in that: The sleeve is provided with an oblique groove, and the handle passes through the oblique groove and is embedded in the screw hole.

5. The lead screw nut for projection platform transmission according to claim 4, characterized in that: A C-shaped hoop is provided between the cone sleeve and the nut. The C-shaped hoop is wrapped around the outer wall of the polished rod, and one end of the C-shaped hoop is embedded in the nut.

6. The lead screw nut for projection platform transmission according to claim 5, characterized in that: When the handle presses the nut in a direction away from the end cover, the three bearings on the tapered sleeve can lock the polished rod; when the handle presses the nut in a direction close to the end cover, the three bearings on the tapered sleeve can loosen the polished rod.

Images