A locking device for a clamping sleeve

Abstract

The present invention relates to the technical field of adapter sleeves, and discloses an adapter sleeve locking device, which includes a bushing, a locking washer, and a locking nut. A locking mechanism is sleeved outside the bushing. The locking mechanism includes a locking ring. A positioning mechanism is equidistantly arranged on the inner wall circumference of the bushing. The positioning mechanism includes a resisting rod that movably penetrates through the inner wall of the bushing. A resisting block is fixedly connected to the end of the resisting rod close to the outer side of the bushing. When the bushing is sleeved on the end of the connecting shaft in the present invention, by pressing a group of resisting blocks on the outside of the bushing, the resisting rod can move from the through groove towards the inner diameter. At this time, the positioning ring can squeeze the reset spring on the side, causing deformation. At the same time, the telescopic airbag is compressed, and the oil in the telescopic airbag flows into the inner diameter of the bushing through the connecting pipe and the oil injection hole, realizing lubrication of the inner diameter of the bushing. This facilitates the quick sliding adjustment of the installation position of the bushing in the adapter sleeve outside the connecting shaft.

Description

Technical Field

[0001] The present invention relates to the technical field of adapter sleeves, and particularly to an adapter sleeve locking device. Background Art

[0002] An adapter sleeve is the most commonly used component for positioning a bearing with a tapered hole on a cylindrical shaft. The main function of the adapter sleeve is to make the position of the bearing on the shaft more stable, avoid the offset of the bearing position due to vibration and other reasons, thereby protecting the bearing and extending its service life. It is widely used in industries such as textile, light industry, and papermaking. The use of the adapter sleeve greatly simplifies the bearing installation process and improves the maintenance efficiency of machinery.

[0003] However, in actual use of the above-mentioned adapter sleeve, the adapter sleeve locks the bush through a nut, and then tightly connects the connecting shaft and the bush in the adapter sleeve. When the bush and the connecting shaft are sleeved, during clearance fit, wear is likely to occur, and the sliding is not smooth after sleeving. Oil injection lubrication treatment is required. Moreover, after the bush and the connecting shaft are connected, water and dust enter the connection between the bush and the connecting shaft, which is likely to cause corrosion to the connection, and regular disassembly and maintenance are required later. Summary of the Invention

[0004] The purpose of the present invention is to provide an adapter sleeve locking device, which can achieve self-lubrication at the connection between the bush and the connecting shaft, facilitate the quick sliding adjustment and fixing of the position of the bush and the connecting shaft. Moreover, after fastening, an oil film can be sprayed on the connection between the bush and the connecting shaft to play a role in lubrication and anti-corrosion of the connection.

[0005] To achieve the above purpose, the present invention provides the following technical solution: An adapter sleeve locking device includes a bush, a locking washer, and a locking nut. A locking mechanism is sleeved outside the bush. The locking mechanism includes a locking ring. A contact ring is fixedly sleeved on the top of the locking ring. A positioning mechanism is arranged at equal intervals in the circumferential direction of the inner wall of the bush. The positioning mechanism includes a contact rod movably penetrating through the inner wall of the bush. A contact block is fixedly connected to the end of the contact rod close to the outside of the bush. A positioning ring is fixedly connected to the middle of the contact rod. A reset spring is fixedly installed at equal intervals in the circumferential direction on the side of the positioning ring away from the contact block. A telescopic airbag is fixedly installed at the top of one side of the positioning ring.

[0006] Preferably, through grooves are penetrated and opened at equal intervals in the circumferential direction of the inner wall of the bush, and an external thread groove is opened near the top of the periphery of the bush.

[0007] Preferably, the locking washer includes a locking ring sleeved outside the external thread groove. Resilient blocks are fixedly installed at equal intervals in the circumferential direction on the top of the locking ring. A toothed plate is integrally formed on the side of the resilient block close to the external thread groove.

[0008] Preferably, a tooth groove matching the toothed plate is formed on the outer circumference of the lock nut, and an internal thread groove is formed on the inner wall of the lock nut.

[0009] Preferably, a threaded ring is integrally formed on the inner diameter of the locking ring, and the threaded ring in the locking mechanism is connected to the external thread groove on the outer part of the bushing through thread fit.

[0010] Preferably, the side profile of the through groove is a cross structure, and the positioning ring in the middle of the contact rod is located in the inner wall of the through groove.

[0011] Preferably, the contact block is located on the outer circumference of the bushing, and the outer side surface of the contact block is an arc surface structure.

[0012] Preferably, one end of the return spring away from the positioning ring is fixedly connected to the other surface on the inner side of the through groove, and one end of the expansion airbag away from the positioning ring is fixedly connected to the other surface on the inner side of the through groove.

[0013] Preferably, one end of the connecting pipe away from the expansion airbag penetrates into the corresponding inner cavity of the contact rod, and an oil injection hole is formed through the end of the contact rod away from the contact block.

[0014] Preferably, a connecting pipe is connected through between the expansion airbags located at the top of the circumferential surface of the bushing.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] In the present invention, when the bushing is sleeved on the end of the connecting shaft, by pressing a group of contact blocks on the outside of the bushing, the contact rod can move from the through groove towards the inner diameter. At this time, the positioning ring can squeeze the return spring on the side, causing deformation. At the same time, the expansion airbag is also compressed, and then the oil in the expansion airbag flows into the inner diameter of the bushing through the connecting pipe and the oil injection hole, realizing the lubrication of the inner diameter of the bushing, which facilitates the quick sliding adjustment of the installation position of the bushing in the fastening sleeve on the outside of the connecting shaft;

[0017] In the present invention, by sleeving the bushing on the contact hole at the end of the connecting shaft, the contact rods correspond to the corresponding contact holes one by one. The locking gasket is sleeved on the external thread groove, and the bushing is locked on the outside through the lock nut. At this time, multiple groups of contact blocks on the outer circumference of the bushing are simultaneously squeezed. The positioning ring in the middle of the contact rod can resist the return spring, causing deformation. The oil injection hole at one end of the contact rod can discharge the oil in the expansion airbag into the connection part, forming an oil film, which can lubricate and prevent corrosion of the connection part. At the same time, the contact rod can resist and position the contact hole at the end of the connecting shaft. Then, the locking ring approaches the lock nut through threads, so that the contact ring can resist the resilient block, meshing the toothed plate on the resilient block with the tooth groove on the outside of the lock nut for fixation, further positioning the lock nut, and improving the connection stability between the bushing and the connecting shaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic three - dimensional structure diagram of the present invention;

[0019] Figure 2 is a schematic structure diagram of the bushing in the present invention;

[0020] Figure 3 is a schematic structure diagram of the contact rod in the present invention;

[0021] Figure 4 is a schematic structure diagram of the positioning ring in the present invention;

[0022] Figure 5 is a schematic side - sectional structure diagram of the bushing in the present invention;

[0023] Figure 6 is Figure 5 a partially enlarged structure diagram at position A in

[0024] In the figure: 1. Bushing; 2. Locking washer; 3. Locking nut; 4. Locking mechanism; 5. Positioning mechanism; 11. Through groove; 12. External thread groove; 21. Locking ring; 22. Toughness block; 23. Tooth plate; 31. Tooth groove; 32. Internal thread groove; 41. Locking ring; 42. Contact ring; 43. Thread ring; 51. Contact rod; 52. Contact block; 53. Positioning ring; 54. Return spring; 55. Telescopic airbag; 56. Connecting pipe; 57. Oil injection hole. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. The described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Embodiment 1:

[0026] This embodiment introduces a locking device for a locking sleeve. As Figures 1 - 6 shown, a locking device for a locking sleeve includes a bushing 1, a locking washer 2, and a locking nut 3. A locking mechanism 4 is sleeved outside the bushing 1. The locking mechanism 4 includes a locking ring 41, and a contact ring 42 is fixedly sleeved on the top of the locking ring 41. A positioning mechanism 5 is equidistantly arranged on the inner wall circumference of the bushing 1. The positioning mechanism 5 includes a contact rod 51 that movably penetrates the inner wall of the bushing 1;

[0027] In this embodiment, when the connecting shaft is connected to the bushing 1 in the locking sleeve, a contact hole matching the contact rod 51 can be set outside the connecting shaft. In this way, the ends of multiple contact rods 51 on the inner wall of the bushing 1 can tightly position the outer end of the connecting shaft;

[0028] In this embodiment, when the bushing 1 is sleeved on the end of the connecting shaft, a group of interference blocks 52 on the outside of the bushing 1 can be pressed to enable the interference rod 51 to move from the through groove 11 to the inner diameter. At this time, the positioning ring 53 can squeeze the return spring 54 on the side to produce deformation. At the same time, the telescopic airbag 55 is also compressed, and the oil in the telescopic airbag 55 flows through the connecting pipe 56 and the oil filling hole 57 into the inner diameter of the bushing 1, thereby achieving lubrication of the inner diameter of the bushing 1. This makes it convenient for the bushing 1 in the adapter sleeve to quickly slide and adjust the installation position on the outside of the connecting shaft.

[0029] Among them, the inner wall circumference of the bushing 1 is provided with through grooves 11 at equal intervals, the outer periphery of the bushing 1 is provided with an external thread groove 12 near the top, the locking washer 2 includes a locking ring 21 sleeved on the outside of the external thread groove 12, and the top circumference of the locking ring 21 is fixedly installed with toughness blocks 22 at equal intervals. The toughness block 22 is integrally formed with a tooth plate 23 on one side close to the external thread groove 12, and a tooth groove 31 matching the tooth plate 23 is provided on the outer circumference of the locking nut 3. An internal thread groove 32 is provided on the inner wall of the locking nut 3, and a threaded ring is integrally formed on the inner diameter of the locking ring 41. 43. The threaded ring 43 in the locking mechanism 4 is connected to the external thread groove 12 on the outside of the bushing 1 through threaded cooperation. After the bushing 1 is sleeved on the contact hole at the end of the connecting shaft in the adapter sleeve, the locking nut 3 is locked through the external thread groove 12 of the bushing 1. Then, the locking ring 41 is threaded close to the locking nut 3, so that the contact ring 42 can contact the toughness block 22, and the tooth plate 23 on the toughness block 22 and the external tooth groove 31 of the locking nut 3 are engaged and fixed, so that the locking nut 3 is further positioned, thereby improving the stability of the connection between the bushing 1 and the connecting shaft.

[0030] The outer side of the bushing 11 is an arc structure, and the return spring 54 is fixedly connected to the other side of the inner side of the through groove 11 away from one end of the positioning ring 53, and the telescopic airbag 55 is fixedly connected to the other side of the inner side of the through groove 11 away from one end of the positioning ring 53. When the bushing 1 is sleeved on the end of the connecting shaft, a group of friction blocks 52 outside the bushing 1 can be pressed to enable the friction rod 51 to move from the through groove 11 to the inner diameter. At this time, the positioning ring 53 can squeeze the return spring 54 on the side to produce deformation. At the same time, the telescopic airbag 55 is also compressed, and the oil in the telescopic airbag 55 flows into the inner diameter of the bushing 1 through the connecting pipe 56 and the oil filling hole 57 to achieve lubrication of the inner diameter of the bushing 1. This makes it convenient for the bushing 1 in the adapter sleeve to quickly slide and adjust the installation position outside the connecting shaft. Example 2:

[0031] Based on Example 1, this example introduces a locking device for an adapter sleeve, such as Figures 3 - 6As shown, a contact block 52 is fixedly connected to the outer end of the contact rod 51 close to the bushing 1. A positioning ring 53 is fixedly connected to the middle of the contact rod 51. A reset spring 54 is fixedly installed at equal intervals on the circumference of the side of the positioning ring 53 away from the contact block 52. A telescopic airbag 55 is fixedly installed at the top of one side of the positioning ring 53.

[0032] In this embodiment, by sleeving the bushing 1 on the contact hole at the end of the connecting shaft, the contact rod 51 corresponds to the corresponding contact hole one by one. The locking washer 2 is sleeved on the external thread groove 12. The outside of the bushing 1 is locked by the locking nut 3. At this time, multiple contact blocks 52 on the outer circumference of the bushing 1 are simultaneously squeezed. The positioning ring 53 in the middle of the contact rod 51 can resist the reset spring 54 and generate deformation. The oil injection hole 57 at one end of the contact rod 51 can drain the oil in the telescopic airbag 55 into the connection part to form an oil film, which can lubricate and prevent corrosion of the connection part. At the same time, the contact rod 51 can resist and position the contact hole at the end of the connecting shaft. Then, the locking ring 41 approaches the locking nut 3 through the thread, so that the contact ring 42 can resist the resilient block 22, and the toothed plate 23 on the resilient block 22 is meshed and fixed with the external tooth groove 31 of the locking nut 3, making the locking nut 3 further form a position, improving the connection stability between the bushing 1 and the connecting shaft.

[0033] Among them, one end of the connecting pipe 56 away from the telescopic airbag 55 penetrates into the corresponding inner cavity of the contact rod 51. An oil injection hole 57 is opened through the end of the contact rod 51 away from the contact block 52. The connecting pipes 56 are connected through between the telescopic airbags 55 on the top of the circumferential surface of the bushing 1. By sleeving the bushing 1 on the contact hole at the end of the connecting shaft, the contact rod 51 corresponds to the corresponding contact hole one by one. The locking washer 2 is sleeved on the external thread groove 12. The outside of the bushing 1 is locked by the locking nut 3. At this time, multiple contact blocks 52 on the outer circumference of the bushing 1 are simultaneously squeezed. The positioning ring 53 in the middle of the contact rod 51 can resist the reset spring 54 and generate deformation. The oil injection hole 57 at one end of the contact rod 51 can drain the oil in the telescopic airbag 55 into the connection part to form an oil film, which can lubricate and prevent corrosion of the connection part.

[0034] Working principle: When in use, when the connecting shaft is connected to the bushing 1 in the set screw sleeve, contact holes matching the contact rod 51 can be arranged on the outside of the connecting shaft, so that the ends of multiple contact rods 51 on the inner wall of the bushing 1 can resist and position the outer end of the connecting shaft.

[0035] When the bushing 1 is sleeved on the end of the connecting shaft, first, by pressing a set of abutting blocks 52 on the outside of the bushing 1, the abutting rod 51 can move inward from the through groove 11. At this time, the positioning ring 53 can squeeze the reset spring 54 on the side, causing deformation. At the same time, the telescopic airbag 55 is also compressed, and then the oil in the telescopic airbag 55 flows into the inner diameter of the bushing 1 through the connecting pipe 56 and the oil injection hole 57, realizing the lubrication of the inner diameter of the bushing 1, which facilitates the quick sliding adjustment of the installation position of the bushing 1 in the tight sleeve outside the connecting shaft;

[0036] Then, the lock washer 2 is sleeved on the external thread groove 12, and the bushing 1 is locked externally by the lock nut 3. At this time, multiple groups of abutting blocks 52 on the outer circumference of the bushing 1 are simultaneously squeezed. The positioning ring 53 in the middle of the abutting rod 51 can abut against the reset spring 54, causing deformation. The oil injection hole 57 at one end of the abutting rod 51 can discharge the oil in the telescopic airbag 55 into the connection, forming an oil film, which can lubricate and prevent corrosion at the connection. At the same time, the abutting rod 51 can abut and position the abutting hole at the end of the connecting shaft;

[0037] Finally, the locking ring 41 approaches the lock nut 3 through the thread, so that the abutting ring 42 can abut against the resilient block 22, meshing the toothed plate 23 on the resilient block 22 with the external tooth groove 31 of the lock nut 3 for fixation, further positioning the lock nut 3 and improving the connection stability between the bushing 1 and the connecting shaft.

[0038] Although the embodiments of the present invention have been shown and described, for those skilled in the art, it can be understood that various changes and modifications can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A locking device for a locking collar, comprising a bushing (1), a locking washer (2), a locking nut (3), and a connecting pipe (56), characterized in that: A locking mechanism (4) is sleeved outside the bushing (1). The locking mechanism (4) includes a locking ring (41). A resisting ring (42) is fixedly sleeved on the top of the locking ring (41). A positioning mechanism (5) is arranged at equal intervals on the inner wall circumference of the bushing (1). The positioning mechanism (5) includes a resisting rod (51) movably penetrating through the inner wall of the bushing (1). A resisting block (52) is fixedly connected to the end of the resisting rod (51) close to the outer side of the bushing (1). A positioning ring (53) is fixedly connected to the middle of the resisting rod (51). A reset spring (54) is fixedly installed at equal intervals on the circumference of the side of the positioning ring (53) away from the resisting block (52). A telescopic airbag (55) is fixedly installed at the top of one side of the positioning ring (53). Through grooves (11) are arranged at equal intervals and penetrate through the inner wall circumference of the bushing (1). An external thread groove (12) is formed near the top of the periphery of the bushing (1). The locking washer (2) includes a locking ring (21) sleeved outside the external thread groove (12). Resilient blocks (22) are fixedly installed at equal intervals on the top circumference of the locking ring (21). A toothed plate (2) is integrally formed on one side of the resilient block (22) close to the external thread groove (12). A tooth groove (31) matching the toothed plate (23) is formed on the outer circumference of the locking nut (3). An internal thread groove (32) is formed on the inner wall of the locking nut (3). One end of the connecting pipe (56) away from the telescopic airbag (55) penetrates into the corresponding inner cavity of the resisting rod (51). An oil injection hole (57) is formed by penetrating through the end of the resisting rod (51) away from the resisting block (52).

2. The locking device for a locking collar according to claim 1, wherein: A threaded ring (43) is integrally formed on the inner diameter of the locking ring (41). The threaded ring (43) in the locking mechanism (4) is in threaded fit connection with the external thread groove (12) outside the bushing (1).

3. The locking device for a locking collar according to claim 1, characterized in that: The side cross-section of the through groove (11) is a cross structure. The positioning ring (53) in the middle of the resisting rod (51) is located in the inner wall of the through groove (11).

4. A locking device for a locking sleeve according to claim 1, characterized in that: The resisting block (52) is located on the outer circumference of the bushing (1). The outer side surface of the resisting block (52) is an arc surface structure.

5. A locking device for a locking sleeve according to claim 1, characterized in that: One end of the reset spring (54) away from the positioning ring (53) is fixedly connected to the other surface on the inner side of the through groove (11). One end of the telescopic airbag (55) away from the positioning ring (53) is fixedly connected to the other surface on the inner side of the through groove (11).

6. The locking device for a locking sleeve according to claim 1, characterized in that: A connecting pipe (56) is connected through between the telescopic airbags (55) located at the top of the circumferential surface of the bushing (1).

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