A type of semi-circular coupling drive shaft with replaceable bushings

Abstract

The invention discloses a semicircular coupling transmission shaft with a replaceable sleeve, comprising a semicircular connecting sleeve and a transmission shaft body, wherein the connecting sleeve is located at one end of the transmission shaft body, and the semicircular connecting sleeve comprises an outer shell and a semicircular replacement inner sleeve arranged inside the outer shell and replaceable. That is, by improving the existing bearing, a replaceable inner sleeve is arranged inside the semicircular sleeve of the bearing, and the inner sleeve can be directly replaced after being worn without replacing the entire bearing, which is convenient and fast, has low maintenance cost, and can ensure the performance of the bearing, and has very good practical value.

Description

Technical Field

[0001] The invention relates to a semicircular coupling transmission shaft with a replaceable shaft sleeve. Background Art

[0002] The coupling is also called a coupling. It is a mechanical component used to firmly connect the driving shaft and the driven shaft in different mechanisms to rotate together and transmit motion and torque. In the production process, due to long-term use, it is easy to cause the inner hole loss, especially the semicircular coupling, such as Figure 1 As shown in the figure, the wear diameter of the inner hole of the sleeve can reach 5 to 8 mm, causing the inner shaft to jump inside, which poses a safety hazard to the operator; at the same time, due to the jumping of the transmission shaft, it is easy to cause the end face of the produced product to be uneven, which brings difficulties to the next process. Therefore, it is often necessary to replace the coupling to solve the above problems. However, replacing the coupling is not only complicated and time-consuming, affecting production efficiency, but also the cost of replacing the entire bearing is high. The replaced bearing needs to be repaired by welding. Not only is the process complicated, but the strength of the repaired product is not enough, and the performance of the product cannot be guaranteed when it is put into use again. Summary of the invention

[0003] In view of the above problems, the present invention proposes a semicircular coupling transmission shaft with a replaceable sleeve, improves the existing bearing, and sets a replaceable gasket inside the semicircular sleeve of the bearing, which can be directly replaced after being worn without replacing the entire bearing, which is convenient and fast, with low maintenance cost, and can ensure the performance of the bearing. The specific technical solution is as follows:

[0004] A semicircular coupling transmission shaft with replaceable sleeves comprises a semicircular connecting sleeve and a transmission shaft body, wherein the connecting sleeve is located at one end of the transmission shaft body and comprises an outer shell and a semicircular replacement inner sleeve which is arranged inside the outer shell and is replaceable.

[0005] The aforementioned semicircular coupling transmission shaft with replaceable sleeve, the replaceable inner sleeve includes a semi-cylindrical sleeve pad and a semi-annular fixed ring portion, the fixed ring portion is arranged on the outer edge of one end of the sleeve pad, and the two are designed as one body.

[0006] The aforementioned semicircular coupling transmission shaft with replaceable sleeve, the fixing ring portion is provided with a first connecting through hole for fixing with the outer shell body.

[0007] The aforementioned semicircular coupling transmission shaft with replaceable sleeve, the inner surface of the outer sleeve shell is provided with a sleeve replacement area matching the outer profile of the replacement inner sleeve; the sleeve replacement area includes a fixing recess matching the shape of the semicircular annular fixing ring part and a sleeve shell for accommodating the sleeve pad part; the fixing recess is provided with a second connecting hole corresponding to the first connecting through hole on the fixing ring part.

[0008] Preferably, for the aforementioned semicircular coupling transmission shaft with replaceable sleeve, the exterior of the fixed recess is provided with an annular sleeve which is integral with the outer shell and serves to limit and protect the replacement inner sleeve.

[0009] Preferably, for the aforementioned semicircular coupling transmission shaft with replaceable sleeve, the ratio among the thickness dimension of the annular sleeve, the width dimension of the fixed ring portion and the thickness dimension of the sleeve pad portion is 1:1:1.

[0010] Preferably, in the aforementioned semicircular coupling transmission shaft with replaceable sleeve, there are three first connecting through holes and three second connecting holes, which are evenly distributed on the fixed ring part and the fixed recess respectively.

[0011] The aforementioned semicircular coupling transmission shaft with replaceable sleeve, the first connecting through hole and the second connecting hole correspond one to one, and the hole diameters are consistent.

[0012] The aforementioned semicircular coupling transmission shaft with replaceable sleeve, the sleeve shell side of the outer shell is provided with a fixing ear piece for connecting with other transmission shafts, the fixing ear piece is provided with a fixing through hole, and the fixing ear piece is arranged horizontally, and its span is equal to the sum of the thickness of the ring sleeve, the width of the fixed ring part and the thickness of the sleeve pad part.

[0013] The aforementioned semicircular coupling transmission shaft with replaceable sleeve has a positioning bayonet for positioning and connecting other transmission shafts in the middle of the outer ring sleeve of the outer shell.

[0014] The beneficial effects of the present invention are:

[0015] The present invention improves the existing bearing by arranging a replaceable inner sleeve inside the semicircular sleeve of the bearing, which can be directly replaced after being worn without replacing the entire bearing. The invention is convenient and fast, has low maintenance cost, can ensure the performance of the bearing, and has very good practical value. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of an existing semicircular coupling transmission shaft;

[0017] Figure 2 It is a structural schematic diagram of the transmission shaft of the semicircular coupling of the present invention.

[0018] In the figure: 1. connecting sleeve; 2. transmission shaft body; 3. outer sleeve shell; 4. replacement inner sleeve; 41. sleeve pad; 42. fixing ring; 5. sleeve replacement area; 51. sleeve shell; 52. fixing boss; 6. first connecting through hole; 7. second connecting hole; 8. ring sleeve; 9. fixing ear; 91. fixing through hole; 10. positioning bayonet. DETAILED DESCRIPTION

[0019] The technical solution of the present invention will be described clearly and completely below in conjunction with the embodiments and drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. The specific embodiments are as follows:

[0020] A semicircular coupling transmission shaft with replaceable sleeve, such as Figure 2 As shown, it includes a semicircular connecting sleeve 1 and a transmission shaft body 2, wherein the connecting sleeve 1 is located at one end of the transmission shaft body 2, and the semicircular connecting sleeve 1 includes an outer shell 3 and a semicircular replacement inner sleeve 4 which is arranged inside the outer shell 3 and can be replaced. That is, a replaceable inner sleeve is arranged inside the semicircular sleeve of the bearing, and it can be directly replaced after being worn without replacing the entire bearing, which is convenient and fast, with low maintenance cost, and can ensure the performance of the bearing, and has very good practical value.

[0021] In this embodiment, the replacement inner sleeve 4 includes a semi-cylindrical sleeve pad 41 and a semi-circular fixed ring 42. The fixed ring 42 is arranged on the outer edge of one end of the sleeve pad 41, and the two are designed as one. When in use, the replacement inner sleeve 4 contacts the connecting shaft, and the loss generated is also this part. Therefore, when repairing, only the inner sleeve needs to be replaced. In order to facilitate replacement, a screw connection method is adopted in this embodiment, and a first connecting through hole 6 is provided on the fixed ring 42 for fixing with the outer shell body 3. In other embodiments, other connection methods that can achieve the same effect can also be adopted.

[0022] At the same time, in order to facilitate the installation of the replacement inner sleeve 4 and ensure its installation stability, the inner surface of the outer sleeve shell 3 is provided with a sleeve replacement area 5 that matches the outer profile of the replacement inner sleeve 4; the sleeve replacement area 5 includes a fixing recess 52 that matches the shape of the semicircular fixing ring portion 42 and a sleeve shell 51 for accommodating the sleeve pad portion 41; the fixing recess 52 is provided with a second connecting hole 7 corresponding to the first connecting through hole 6 on the fixing ring portion 42, and the inner sleeve and the outer sleeve are fixed together by screws.

[0023] As a preferred solution, in this embodiment, the outside of the fixed recess 52 is provided with an annular sleeve 8 which is integrated with the outer sleeve shell 3 and is used to limit and protect the replacement inner sleeve 4. That is, it forms an entire installation groove with the sleeve replacement area 5, which is convenient for positioning and installing the replacement inner sleeve 4. At the same time, the annular sleeve 8 can also protect the replacement inner sleeve 4 to make it more stable during use.

[0024] In this embodiment, considering the wear of the sleeve during use and ensuring the use effect of the replacement inner sleeve 4, the thickness of the sleeve pad 41 is not less than 8 mm. In this embodiment, the ratio between the thickness of the annular sleeve 8, the width of the fixed ring part 42 and the thickness of the sleeve pad 41 is preferably 1:1:1. In other embodiments, it is not limited to this ratio and can be appropriately adjusted under the premise of ensuring the use performance.

[0025] As a preferred solution, in this embodiment, there are three first connecting through holes 6 and three second connecting holes 7, which are evenly arranged on the fixed ring part 42 and the fixed concave platform 52 respectively; and the first connecting through holes 6 and the second connecting holes 7 correspond to each other one by one, and the aperture size is consistent, which is convenient for fixed connection. In addition, the side of the shaft sleeve shell 51 of the outer shell body 3 is provided with a fixed ear piece 9 for connecting with other transmission shafts, and the fixed ear piece 9 is provided with a fixed through hole 91, and the fixed ear piece 9 is arranged horizontally, and its span is equal to the sum of the thickness of the ring sleeve 8, the width of the fixed ring part 42 and the thickness of the shaft sleeve pad 41. That is, the design of the inner sleeve does not affect the shape of the original semicircular coupling transmission shaft, and its size and specifications are consistent with the existing shape, which is convenient for matching and connecting with some existing products, and does not affect the use. The outer middle part of the outer ring sleeve 8 of the outer shell body 3 is also provided with a positioning bayonet 10, which is convenient for positioning and connecting with other transmission shafts.

[0026] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations within the meaning and scope of the elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0027] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A semicircular coupling transmission shaft with a replaceable sleeve, comprising a semicircular connecting sleeve (1) and a transmission shaft body (2), wherein the connecting sleeve (1) is located at one end of the transmission shaft body (2), and is characterized in that: The semicircular connecting sleeve (1) comprises an outer shell (3) and a semicircular replacement inner sleeve (4) which is arranged inside the outer shell (3) and is replaceable; The replacement inner sleeve (4) comprises a semi-cylindrical shaft sleeve pad portion (41) and a semi-circular fixing ring portion (42), wherein the fixing ring portion (42) is arranged on the outer edge of one end of the shaft sleeve pad portion (41), and the two are designed as an integral whole; The fixing ring portion (42) is provided with a first connecting through hole (6) for fixing to the outer shell body (3); The inner surface of the outer sleeve shell (3) is provided with a sleeve replacement area (5) matching the outer profile of the replacement inner sleeve (4); the sleeve replacement area (5) comprises a fixing recess (52) matching the shape of the semi-circular fixing ring portion (42) and a shaft sleeve shell (51) for accommodating the shaft sleeve pad portion (41); the fixing recess (52) is provided with a second connection hole (7) corresponding to the first connection through hole (6) on the fixing ring portion (42); The outside of the fixed recessed platform (52) is provided with a ring sleeve (8) which limits the protection of the replacement inner sleeve (4) and is integrated with the outer sleeve shell (3).

2. The semicircular coupling transmission shaft with replaceable sleeve according to claim 1, characterized in that: The ratio between the thickness dimension of the annular sleeve (8), the width dimension of the fixing ring portion (42), and the thickness dimension of the shaft sleeve pad portion (41) is 1:1:

1.

3. The semicircular coupling transmission shaft with replaceable sleeve according to claim 1, characterized in that: There are three first connection through holes (6) and three second connection holes (7), which are evenly distributed on the fixed ring portion (42) and the fixed recessed platform (52).

4. The semicircular coupling transmission shaft with replaceable sleeve according to claim 3 is characterized in that: The first connecting through holes (6) and the second connecting holes (7) correspond one to one and have the same hole diameter.

5. The semicircular coupling transmission shaft with replaceable sleeve according to claim 1, characterized in that: A fixing ear piece (9) for connecting to another transmission shaft is provided on the side of the shaft sleeve shell (51) of the outer shell body (3), and a fixing through hole (91) is provided on the fixing ear piece (9). The fixing ear piece (9) is arranged transversely, and its span is equal to the sum of the thickness of the annular sleeve (8), the width of the fixing ring part (42), and the thickness of the shaft sleeve pad part (41).

6. The semicircular coupling transmission shaft with replaceable sleeve according to claim 1, characterized in that: A positioning bayonet (10) for positioning and connecting other transmission shafts is provided in the middle of the outer side of the annular sleeve (8) of the outer shell body (3).

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