CN219529527U - Round nut capable of being locked - Google Patents

Abstract

The utility model relates to the technical field of bearing locking, in particular to a lockable round nut which comprises a nut body and a locking mechanism, wherein the locking mechanism is arranged in the nut body and comprises a through hole, the surface of the through hole is formed in the nut body, threads are formed in the inner wall of the nut body, a self-locking groove is formed in one side, close to the through hole, of the nut body, the self-locking groove is communicated with the through hole, a countersunk head screw is inserted into the inner wall of the self-locking groove and is in threaded connection with the inner wall of the self-locking groove, and one end of the countersunk head screw penetrates through the through hole. The nut wrench matched with the scheme only occupies the axial space of the nut body, is suitable for the working conditions of compact space and inconvenient operation in the radial aspect of the nut, and meanwhile, the round nut in the scheme can be repeatedly used for a plurality of times, and the thread self-locking capability of the round nut is always maintained.

Description

Round nut capable of being locked

Technical Field

The utility model relates to the technical field of bearing locking, in particular to a lockable round nut.

Background

The round nut is usually matched with a stop washer for the round nut, when the round nut is assembled, the inner tongue of the washer is inserted into a groove on the shaft, the outer tongue of the washer is embedded into the groove of the round nut, the nut is locked, or the round nut is locked by adopting double nuts and is usually used as axial fixation of a rolling bearing, so that the round nut is put into use in a large amount.

The traditional common round nut is provided with four rectangular grooves in the circumferential direction of the outer circle, the nut is clamped in the grooves by a crescent wrench, but the crescent wrench needs to occupy the radial extra space of the nut and is not suitable for the working condition of compact space, and the nut has no self-locking capability and needs to be matched with a locking gasket for use, so that the nut needs to be improved.

Disclosure of Invention

The utility model aims to solve the defects that the prior common round nut is not suitable for the working condition of compact space, the nut has no self-locking capability and needs to be matched with a locking gasket in the prior art, and provides the round nut capable of being locked.

In order to achieve the above purpose, the present utility model adopts the following technical scheme: the utility model provides a round nut that can lock, includes nut body and locking mechanism, locking mechanism sets up the inside at the nut body, locking mechanism includes the through hole, the surface that runs through the hole in the nut body is seted up, the screw thread has been seted up to the inner wall of nut body, the self-locking groove has been seted up to one side that the nut body is close to the through hole, the self-locking groove is linked together with the through hole, and the nut spanner that this scheme was joined in marriage and is used only needs to occupy the axial space of nut body, is applicable to the inconvenient operating mode of compact space and nut radial aspect, and round nut in this scheme can repetitious usage simultaneously, and remains its screw thread self-locking ability throughout.

Preferably, the countersunk head screw is inserted into the inner wall of the self-locking groove, the countersunk head screw is in threaded connection with the inner wall of the self-locking groove, and one end of the countersunk head screw penetrates through the through hole.

Preferably, the number of the self-locking grooves is two, and the two self-locking grooves are symmetrically arranged.

Preferably, the positioning grooves are formed in the surface of the nut body, the number of the positioning grooves is four, the four positioning grooves are arranged at equal intervals, and through the arrangement of the locking mechanism, when the nut is used, a pin on a special nut spanner is inserted into the positioning groove on the nut body, the nut body is rotated to generate axial displacement while being rotated, so that the inner ring of the bearing is pressed, the bearing is pressed to eliminate play, after the bearing is locked, a countersunk screw is screwed into the self-locking groove, the upper half strength of the groove is lower than the lower half strength due to the existence of the side penetrating groove, deformation occurs under the pretightening force of the screw, the screw of the nut is meshed with the screw on the shaft, and therefore the self-locking and anti-loose functions of the screw are realized.

Preferably, the inner wall of the nut body is provided with an auxiliary mechanism, the auxiliary mechanism is located in the through hole, and the auxiliary mechanism is arranged, so that the auxiliary locking mechanism is convenient to use, and the stability of the locking mechanism is improved.

Preferably, the auxiliary mechanism comprises two sliding grooves, the two sliding grooves are respectively arranged on the inner top wall and the inner bottom wall of the through hole, the inner wall of the sliding groove is connected with a sliding block in a sliding mode, one side of the sliding block is fixedly connected with an extrusion block, the extrusion block is arranged in the through hole, and one end of the extrusion block is in a chamfer angle.

Preferably, one side fixedly connected with pull rod of slider, the one end fixedly connected with pull rod of slider is kept away from to the pull rod is through setting up assist mechanism, when the nut body is taken off to needs, unscrews countersunk screw, pulls the pull block afterwards, and the pull block drives slider and extrusion piece displacement through the pull rod afterwards, and the extrusion piece slides in the through-hole, and the chamfer department of extrusion piece can be with the partial support restoration of the slight deformation of nut body, can use the pin on the special nut spanner to insert in the constant head tank on the nut body and rotate, can take off the nut body.

Compared with the prior art, the utility model has the advantages and positive effects that:

1. according to the utility model, the locking mechanism is arranged, when the nut is used, the pin on the special nut spanner is inserted into the positioning groove on the nut body, the nut body is rotated to generate axial displacement while rotating, so that the inner ring of the bearing is pressed, the clearance of the bearing is eliminated, after the bearing is locked, the countersunk screw is screwed into the self-locking groove, the upper half part of the groove is lower in strength than the lower half part due to the existence of the side through groove, deformation occurs under the pretightening force of the screw, so that the threads of the nut are meshed with the threads on the shaft, and the self-locking and anti-loosening functions of the threads are realized.

2. According to the nut body locking mechanism, the auxiliary mechanism is arranged, when the nut body needs to be removed, the countersunk head screw is unscrewed, the pull block is pulled, the slide block and the extrusion block are driven to move by the pull rod, the extrusion block slides in the through hole, the part of the nut body slightly deformed can be supported and restored at the chamfer of the extrusion block, and the pin on the special nut spanner can be inserted into the positioning groove on the nut body and rotated, so that the nut body can be removed.

Drawings

Fig. 1 is a schematic perspective view of a lockable round nut according to the present utility model;

FIG. 2 is a schematic diagram of an explosion structure of a lockable round nut according to the present utility model;

FIG. 3 is a schematic cross-sectional view of a lockable round nut according to the present utility model;

FIG. 4 is a schematic view of the structure of the portion A of FIG. 3 in a lockable round nut according to the present utility model;

fig. 5 is a schematic structural view of an auxiliary mechanism in a lockable round nut according to the present utility model.

Legend description:

1. a nut body; 2. a locking mechanism; 21. a positioning groove; 22. countersunk head screws; 23. a self-locking groove; 24. a thread; 25. a through hole; 3. an auxiliary mechanism; 31. a chute; 32. extruding a block; 33. a slide block; 34. pulling blocks; 35. and (5) a pull rod.

Detailed Description

Referring to fig. 1-5, the present utility model provides a technical solution: a lockable round nut comprises a nut body 1 and a locking mechanism 2, wherein the locking mechanism 2 is arranged inside the nut body 1.

The specific arrangement and function of the locking mechanism 2 and the auxiliary mechanism 3 will be described in detail.

In this embodiment: the locking mechanism 2 comprises a through hole 25, the through hole 25 is arranged on the surface of the nut body 1, threads 24 are arranged on the inner wall of the nut body 1, a self-locking groove 23 is arranged on one side, close to the through hole 25, of the nut body 1, the self-locking groove 23 is communicated with the through hole 25, the nut wrench matched with the scheme only occupies the axial space of the nut body 1, is suitable for the working conditions of compact space and inconvenient operation in the radial aspect of the nut, and meanwhile, the round nut in the scheme can be repeatedly used for many times, and the self-locking capacity of the threads 24 is always kept.

Specifically, a countersunk head screw 22 is inserted into the inner wall of the self-locking groove 23, the countersunk head screw 22 is connected with the inner wall thread 24 of the self-locking groove 23, and one end of the countersunk head screw 22 penetrates through the through hole 25.

Specifically, the number of the self-locking grooves 23 is two, and the two self-locking grooves 23 are symmetrically arranged.

Specifically, the constant head tank 21 has been seted up on the surface of nut body 1, the quantity of constant head tank 21 is four, be equidistant setting between four constant head tanks 21, through setting up locking mechanism 2, when using, insert in the constant head tank 21 on the nut body 1 through the pin on the special nut spanner, the rotation takes place the rotation and produce axial displacement, thereby push down the inner circle of bearing, compress tightly the bearing and eliminate its play, after the bearing locking, screw countersunk head screw 22 in from the locked groove 23, the existence of side run-through groove makes the upper half part intensity of groove be less than the lower half part, deformation takes place under the pretightning force effect of screw, make the screw 24 of nut take place the interlock with epaxial screw 24, thereby realize the locking function of screw 24 auto-lock.

Specifically, the inner wall of the nut body 1 is provided with the auxiliary mechanism 3, and the auxiliary mechanism 3 is located in the through hole 25, so that the auxiliary locking mechanism 2 is convenient to use by arranging the auxiliary mechanism 3, and the stability of the locking mechanism 2 is improved.

In this embodiment: the auxiliary mechanism 3 comprises two sliding grooves 31, the number of the sliding grooves 31 is two, the two sliding grooves 31 are respectively arranged on the inner top wall and the inner bottom wall of the through hole 25, the inner wall of the sliding groove 31 is connected with a sliding block 33 in a sliding manner, one side of the sliding block 33 is fixedly connected with an extrusion block 32, the extrusion block 32 is arranged in the through hole 25, and one end of the extrusion block 32 is chamfered.

Specifically, one side fixedly connected with pull rod 35 of slider 33, the one end fixedly connected with pull rod 35 that slider 33 was kept away from to the pull rod 35 is through setting up assist mechanism 3, when the nut body 1 needs to be taken off, unscrews countersunk screw 22, pulls the pull rod 34 afterwards, and pull rod 34 drives slider 33 and extrusion piece 32 displacement through pull rod 35 afterwards, and extrusion piece 32 slides in through hole 25, and the chamfer department of extrusion piece 32 can be with the partial support restoration of the slight deformation of nut body 1, can use the pin on the special nut spanner to insert in the constant head tank 21 on the nut body 1 and rotate, can take off nut body 1.

Working principle: through the locking mechanism 2, when in use, the pin on the special nut spanner is inserted into the positioning groove 21 on the nut body 1, and the nut body 1 is rotated to generate axial displacement while rotating, so as to press the inner ring of the bearing, compress the bearing to eliminate the play of the bearing, after the bearing is locked, the countersunk screw 22 is screwed into the self-locking groove 23, the upper half part of the groove is lower in strength than the lower half part due to the existence of the side through groove, deformation is generated under the pretightening force of the screw, so that the thread 24 of the nut is meshed with the thread 24 on the shaft, thereby realizing the self-locking and anti-loosening functions of the thread 24, the nut spanner matched in the scheme only occupies the axial space of the nut body 1, is suitable for the working conditions of compact space and inconvenient operation of the nut in radial aspect, and the round nut in the scheme can be repeatedly used for a plurality of times, the self-locking capability of the screw thread 24 is always kept, the scheme can process the outer circle of the nut body 1, can cooperate with a sealing piece to realize the sealing environment of a bearing chamber, ensures the dustproof and lubricating effects of the bearing, does not need to reserve a section of shaft gear on a shaft specially for sealing, is convenient for the normal use of round nuts, and is convenient for the use of the auxiliary locking mechanism 2 by arranging the auxiliary mechanism 3, unscrewing the countersunk screw 22 and then pulling the pull block 34 when the nut body 1 needs to be taken down, the pull block 34 drives the sliding block 33 and the extrusion block 32 to displace through the pull rod 35, the extrusion block 32 slides in the through hole 25, the chamfer of the extrusion block 32 can support and restore the slightly deformed part of the nut body 1, namely, a pin on a special nut spanner can be used for inserting into the positioning groove 21 on the nut body 1 and rotating, the nut body 1 can be taken down, and the auxiliary locking mechanism 2 is convenient for use through arranging the auxiliary mechanism 3, the stability of the locking mechanism 2 is improved.

Claims (5)

1. The utility model provides a round nut that can lock, includes nut body (1) and locking mechanism (2), its characterized in that: the utility model provides a nut body, nut body (1) is located in the inside of locking mechanism (2), locking mechanism (2) are including perforating hole (25), perforating hole (25) are located the surface of nut body (1) and are seted up, screw thread (24) are seted up to the inner wall of nut body (1), self-locking groove (23) have been seted up to one side that nut body (1) is close to perforating hole (25), self-locking groove (23) are linked together with perforating hole (25), the inner wall of nut body (1) is provided with auxiliary mechanism (3), auxiliary mechanism (3) are located perforating hole (25), auxiliary mechanism (3) include spout (31), the quantity of spout (31) is two, two spout (31) are located the interior roof and the interior bottom wall of perforating hole (25) respectively, the inner wall sliding connection of spout (31) has slider (33), one side fixedly connected with extrusion piece (32) of slider (33), extrusion piece (32) are located perforating hole (25), extrusion piece (32) are chamfer one end that is.

2. A lockable round nut as defined in claim 1, further comprising: the inner wall of the self-locking groove (23) is inserted with a countersunk head screw (22), the countersunk head screw (22) is connected with an inner wall thread (24) of the self-locking groove (23), and one end of the countersunk head screw (22) penetrates through the through hole (25).

3. A lockable round nut as defined in claim 1, further comprising: the number of the self-locking grooves (23) is two, and the two self-locking grooves (23) are symmetrically arranged.

4. A lockable round nut as defined in claim 1, further comprising: positioning grooves (21) are formed in the surface of the nut body (1), the number of the positioning grooves (21) is four, and the four positioning grooves (21) are arranged at equal intervals.

5. A lockable round nut as defined in claim 1, further comprising: one side of the sliding block (33) is fixedly connected with a pull rod (35), and one end, far away from the sliding block (33), of the pull rod (35) is fixedly connected with a pull block (34).