CN216306635U

CN216306635U - Copper nut structure with adjustable gap eliminating function

Info

Publication number: CN216306635U
Application number: CN202122320232.3U
Authority: CN
Inventors: 施小飞; 张明华
Original assignee: Guangzhou Defang Electromechanical Co ltd
Current assignee: Guangzhou Defang Electromechanical Co ltd
Priority date: 2021-09-24
Filing date: 2021-09-24
Publication date: 2022-04-15
Anticipated expiration: 2031-09-24

Abstract

The utility model discloses a copper nut structure with an adjustable anti-backlash function, which relates to the technical field of nuts and comprises a nut body, wherein a flange seat is arranged on the nut body, an adjusting nut is arranged on one side of the nut body, the adjusting nut and the nut body are connected through two fixing mechanisms, the fixing mechanisms are used for fixing the nut body and the adjusting nut, and two external thread sleeves are arranged between the nut body and the adjusting nut. Thereby being more convenient to use.

Description

Copper nut structure with adjustable gap eliminating function

Technical Field

The utility model relates to the technical field of nuts, in particular to a copper nut structure with an adjustable anti-backlash function.

Background

In precision machinery, a screw rod and nut pair is a frequently-used transmission and positioning mechanism, high-precision transmission and positioning are realized, gaps between nuts and screw rods are often required to be eliminated, an existing gap adjusting structure can only be automatically adjusted in the same direction when being adjusted, and therefore the contact surfaces of internal threads of the nuts and external threads of screw rod shafts are the same after being adjusted every time, abrasion is increased, use is inconvenient, and therefore a copper nut structure with an adjustable gap eliminating function is provided.

SUMMERY OF THE UTILITY MODEL

The utility model provides an aim at provides a copper nut structure with adjustable gap eliminating function to solve the current clearance adjustment structure that proposes in the above-mentioned background art when adjusting, only can carry out automatically regulated toward same direction, this just leads to the internal thread of adjusting back nut at every turn all to be the same with the external screw thread contact surface of lead screw axle, thereby the wearing and tearing of increaseing are not convenient for carry out the problem of using.

In order to achieve the above purpose, the present application provides the following technical solutions: a copper nut structure with an adjustable gap eliminating function comprises a nut body, wherein a flange seat is installed on the nut body, an adjusting nut is arranged on one side of the nut body, the adjusting nut and the nut body are connected through two fixing mechanisms, the fixing mechanisms are used for fixing the nut body and the adjusting nut, two external thread sleeves are arranged between the nut body and the adjusting nut, internal thread sleeves are sleeved on the two external thread sleeves in a threaded manner, a plurality of sliding grooves which are uniformly and circumferentially arranged are formed in one sides, far away from each other, of the two external thread sleeves, sliding shafts are slidably installed in the sliding grooves, one ends, far away from the internal thread sleeves, of the sliding shafts on two sides of the internal thread sleeves are respectively connected with the nut body and the side portions, close to each other, of the adjusting nut, and gap adjusting springs are sleeved on the sliding shafts, and one end of the clearance adjusting spring, which is close to the internal thread sleeve, is connected with the two side parts, which are far away from the external thread sleeve, and one end of the clearance adjusting spring, which is far away from the internal thread sleeve, is connected with the nut body and the side part, which is close to the adjusting nut, respectively.

Borrow by above-mentioned structure, rotate internal thread cover and reverse rotation thread cover through the forward to can be so that clearance adjustment spring is in tensile or compression state, when adjusting the clearance, can select arbitrary one side of nut body and adjusting nut both sides portion and the external screw thread contact of lead screw axle, thereby avoid adopting single regulation mode to make the condition emergence that the internal thread wearing and tearing of certain side of nut body and adjusting nut are serious, thereby be convenient for more use, can fix in the regulation through fixed establishment.

Preferably, the fixing mechanism comprises two fixed inner nuts, two fixed outer nuts and a fixed threaded shaft, two fixed grooves are formed in the side portion of the nut body, two matching grooves are formed in the side portion of the adjusting nut, the matching grooves correspond to the fixed grooves in position, connecting holes are formed in the inner wall, close to the matching grooves, of one side, of the fixed groove, the fixed threaded shaft is installed in the connecting holes, the fixed inner nuts and the fixed outer nuts are sleeved with the same threads of the fixed threaded shaft, the fixed inner nuts are close to the fixed inner nuts, the fixed groove is close to the inner wall, close to the matching grooves, of one side, the inner wall is in contact with the fixed groove, and the fixed outer nuts are far away from the fixed outer nuts, and the side portions of the fixed outer nuts are in contact with the nut body and the side portions of the adjusting nut, close to the fixed threaded shaft.

Through the arrangement of the fixing structure, the nut body and the adjusting nut can be fixed after the gap is adjusted by the nut body and the adjusting nut, so that the nut body and the adjusting nut can be stably driven by the screw rod shaft.

Preferably, the fixed slots and the included angle after the axis of the nut body is connected are degrees, and the matching slots and the included angle formed after the axis of the adjusting nut is connected are degrees.

This has the advantage of facilitating a more stable fixation.

Preferably, the diameters of the internal threads in the nut body and the adjusting nut are equal.

The advantage of setting up like this is, guarantees that nut body and adjusting nut can install on the screw shaft.

Preferably, the internal thread sleeve, the two external thread sleeves, the nut body and the central axis of the adjusting nut coincide.

The advantage of setting up like this does not influence nut body and adjusting nut and installs on the screw shaft, does not influence screw shaft and nut body, adjusting nut transmission simultaneously.

Preferably, the length of the sliding shaft inside the sliding groove is equal to the length of the sliding shaft outside the sliding groove.

The advantage of this arrangement is that the sliding shaft can slide back and forth.

Preferably, the sliding groove has a groove depth equal to a length of the sliding shaft.

This has the advantage that the sliding shaft has a space for entering the sliding groove.

In conclusion, the technical effects and advantages of the utility model are as follows:

according to the utility model, the clearance adjusting spring can be in a stretching or compressing state by rotating the internal thread sleeve in the forward direction and rotating the thread sleeve in the reverse direction, and any one of the two side parts of the nut body and the adjusting nut can be selected to be in contact with the external thread of the screw rod shaft when the clearance is adjusted, so that the situation that the internal threads on one side of the nut body and the adjusting nut are seriously abraded by adopting a single adjusting mode is avoided, and the use is more convenient.

According to the utility model, through the arrangement of the fixing structure, the nut body and the adjusting nut can be fixed after the gap between the nut body and the adjusting nut is adjusted, so that the nut body and the adjusting nut can be stably transmitted with the screw rod shaft.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings 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 some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative efforts.

Fig. 1 is a schematic view of a first-view perspective structure of a copper nut structure with an adjustable anti-backlash function in this embodiment;

FIG. 2 is a schematic perspective view of the copper nut structure without the internal thread bush with the gap eliminating function in this embodiment;

fig. 3 is a schematic view of a second perspective structure of the copper nut structure with the gap elimination function in this embodiment;

fig. 4 is an enlarged schematic view of a structure shown in fig. 3 in this embodiment.

In the figure: 1. a nut body; 2. adjusting the nut; 3. fixing grooves; 4. fixing the threaded shaft; 5. fixing the outer nut; 6. fixing the inner nut; 7. an external thread sleeve; 8. an internal thread sleeve; 9. a sliding groove; 10. a sliding shaft; 11. a gap adjusting spring; 12. A flange seat; 13. and (4) matching the groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example (b): referring to fig. 1-4, a copper nut structure with adjustable anti-backlash function comprises a nut body 1, a flange seat 12 is installed on the nut body 1, an adjusting nut 2 is installed on one side of the nut body 1, the adjusting nut 2 and the flange seat 12 can be any one of the prior art, and the diameters of internal threads in the nut body 1 and the adjusting nut 2 are equal, so that the advantage of the arrangement is that the nut body 1 and the adjusting nut 2 can be installed on a screw rod shaft, the adjusting nut 2 and the nut body 1 are connected through two fixing mechanisms, the fixing mechanisms are used for fixing the nut body 1 and the adjusting nut 2, two external thread sleeves 7 are arranged between the nut body 1 and the adjusting nut 2, internal thread sleeves 8 are sleeved on the two external thread sleeves 7, and the external thread sleeves 7 and the internal thread sleeves 8 can be any one of the prior art, the inner thread sleeve 8, the two outer thread sleeves 7, the nut body 1 and the adjusting nut 2 are overlapped on the central axis, so that the nut body 1 and the adjusting nut 2 are not influenced to be installed on the screw rod shaft, and the transmission of the screw rod shaft, the nut body 1 and the adjusting nut 2 is not influenced.

The sliding tray 9 that a plurality of even circumferences set up is all seted up to one side that two external screw thread covers 7 kept away from each other, equal slidable mounting has sliding shaft 10 in a plurality of sliding tray 9, sliding shaft 10 can be any one among the prior art, the length that sliding shaft 10 is located sliding tray 9 equals with the length that sliding shaft 10 is located sliding tray 9, the benefit that sets up like this, can let sliding shaft 10 make a round trip to slide, the groove depth of sliding tray 9 equals the length of sliding shaft 10, the benefit that sets up like this, can let sliding shaft 10 have a space that gets into in sliding tray 9.

One end of a plurality of sliding shafts 10 which are positioned on two sides of the internal thread sleeve 8 and are far away from the internal thread sleeve 8 respectively corresponds to the nut body 1, the side parts of the adjusting nut 2 which are close to each other are installed in a welding mode, gap adjusting springs 11 are sleeved on the sliding shafts 10, the gap adjusting springs 11 can be the side parts of any one of the plurality of gap adjusting springs 11 which are close to the internal thread sleeve 8 and are far away from the two external thread sleeves 7 in the prior art, one ends of the plurality of gap adjusting springs 11 which are far away from the internal thread sleeve 8 respectively correspond to the nut body 1, the side parts of the adjusting nut 2 which are close to each other are connected, and the connection mode of the gap adjusting springs 11 can be any one of the prior art, such as welding.

Borrow by above-mentioned structure, through positive rotation internal thread cover 8 and reverse rotation thread cover 8 to can be so that clearance adjustment spring 11 is in tensile or compression state, when adjusting the clearance, can select arbitrary one side of

nut body

1 and 2 both sides portions of adjusting nut and the external screw thread contact of lead screw axle, thereby avoid adopting single regulation mode to make the condition that the internal thread wearing and tearing of certain side of nut body 1 and adjusting nut 2 take place seriously, thereby be convenient for more use, can fix in the regulation through fixed establishment.

In this embodiment, referring to fig. 4, the fixing mechanism includes two fixed inner nuts 6, fixed outer nuts 5 and fixed threaded shafts 4, the fixed inner nuts 6, the fixed outer nuts 5 and the fixed threaded shafts 4 may be any one of the prior art, two fixing grooves 3 are formed on a side portion of the nut body 1, two mating grooves 13 are formed on a side portion of the adjusting nut 2, the two mating grooves 13 correspond to the two fixing grooves 3, the fixing grooves 3 and the mating grooves 13 are both formed with a connecting hole on one inner wall near each other, the fixed threaded shafts 4 are installed in the connecting holes, the two fixed inner nuts 6 and the two fixed outer nuts 5 are both screwed on the fixed threaded shafts 4, the side portions near each other of the two fixed inner nuts 6 are in contact with the inner walls on one sides of the fixing grooves 3 and the mating grooves 13, and the side portions far away from each other of the two fixed outer nuts 5 are respectively in contact with the nut body 1, The lateral parts that adjusting nut 2 is close to each other contact, through fixed knot structure's setting, can adjust the clearance back at nut body 1 and adjusting nut 2, fix nut body 1 and adjusting nut 2 to guarantee that nut body 1 and adjusting nut 2 can be stable carry out the transmission with the lead screw axle.

The contained angle after two fixed slots 3 are connected with the axis of nut body 1 is 180 degrees, and the contained angle of the formation after two cooperation grooves 13 are connected with the axis of adjusting nut 2 is 180 degrees, and the benefit that sets up like this is convenient for more stable fixing.

The working principle is as follows:

when the nut body 1 and the adjusting nut 2 are required to be installed on the screw shaft, when the nut body 1 and the screw shaft generate a clearance after long-term use, when the clearance is adjusted by adopting a method of mutually separating, the internal thread sleeve 8 is rotated to separate the two external thread sleeves 7 from each other, the two external thread sleeves 7 separate from each other, the plurality of sliding shafts 10 respectively enter the plurality of sliding grooves 9, so that the plurality of clearance adjusting springs 11 are compressed, then the four fixed internal nuts 6 are unscrewed, the nut body 1 and the adjusting nut 2 separate from each other under the reaction force of the plurality of clearance adjusting springs 11, so that the internal threads of the nut body 1 and the adjusting nut 2 are continuously contacted with the external threads on the screw shaft, after the contact, the four fixed external nuts 5 are continuously rotated to be respectively contacted with the side parts of the two nut bodies 1 and the two adjusting nuts 2, then reverse four fixed interior nuts 6 of screwing up can accomplish fixedly, when adopting the method of being close to each other to adjust the clearance, only need reverse rotation internal thread cover 8 to make two external screw thread cover 7 be close to each other to make a plurality of clearance adjustment springs 11 tensile, thereby adjust can, avoided adopting single regulation mode to make the serious condition of nut body 1 and adjusting nut 2's certain side internal thread wearing and tearing take place when adjusting, thereby more be convenient for use.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the utility model.

Claims

1. The utility model provides a copper nut structure with adjustable gap function that disappears, includes nut body (1), install flange seat (12) on nut body (1), its characterized in that: one side of nut body (1) is provided with adjusting nut (2), adjusting nut (2) with nut body (1) connects through two fixed establishment, fixed establishment be used for with nut body (1) with adjusting nut (2) are fixed, nut body (1) with be provided with two external screw thread cover (7) between adjusting nut (2), two internal thread cover (8) have been cup jointed to the screw thread on external screw thread cover (7), two sliding tray (9) that a plurality of even circumference set up are all seted up to one side that external screw thread cover (7) kept away from each other, and are a plurality of equal slidable mounting has sliding shaft (10) in sliding tray (9), is located a plurality of internal thread cover (8) both sides sliding shaft (10) are kept away from the one end of internal thread cover (8) respectively with nut body (1), The lateral parts that adjusting nut (2) are close to each other are connected, and are a plurality of all cup joint clearance adjustment spring (11) on sliding shaft (10), and are a plurality of clearance adjustment spring (11) are close to the one end and two of internal thread cover (8) the lateral part that keeps away from each other of external thread cover (7) is connected, and is a plurality of clearance adjustment spring (11) are kept away from the one end of internal thread cover (8) respectively with nut body (1), the lateral part that adjusting nut (2) are close to each other is connected.

2. The copper nut structure with the adjustable anti-backlash function according to claim 1, wherein: the fixing mechanism comprises two fixed inner nuts (6), two fixed outer nuts (5) and a fixed threaded shaft (4), two fixing grooves (3) are formed in the side portion of the nut body (1), two matching grooves (13) are formed in the side portion of the adjusting nut (2), the positions of the two matching grooves (13) correspond to the positions of the two fixing grooves (3), connecting holes are formed in the inner walls, close to each other, of the fixing grooves (3) and the matching grooves (13), the fixed threaded shaft (4) is installed in the connecting holes, the two fixed inner nuts (6) and the two fixed outer nuts (5) are in threaded sleeve connection with the fixed threaded shaft (4), the side portions, close to each other, of the two fixed inner nuts (6) are in contact with the inner walls, close to each other, of the fixing grooves (3) and the matching grooves (13), the two sides of the fixed outer nut (5) which are far away from each other are respectively contacted with the sides of the nut body (1) and the adjusting nut (2) which are close to each other.

3. The copper nut structure with the adjustable anti-backlash function according to claim 2, wherein: two fixed slot (3) with the contained angle after the axis of nut body (1) is connected is 180 degrees, two cooperation groove (13) with the contained angle of formation after the axis of adjusting nut (2) is connected is 180 degrees.

4. The copper nut structure with the adjustable anti-backlash function according to claim 1, wherein: the diameter of the internal thread in the nut body (1) is equal to that of the internal thread in the adjusting nut (2).

5. The copper nut structure with the adjustable anti-backlash function according to claim 1, wherein: the inner thread sleeve (8), the two outer thread sleeves (7), the nut body (1) and the central axis of the adjusting nut (2) are overlapped.

6. The copper nut structure with the adjustable anti-backlash function according to claim 1, wherein: the length of the sliding shaft (10) in the sliding groove (9) is equal to the length of the sliding shaft (10) outside the sliding groove (9).

7. The copper nut structure with the adjustable anti-backlash function according to claim 1, wherein: the groove depth of the sliding groove (9) is equal to the length of the sliding shaft (10).