Transmission shaft

Abstract

The utility model discloses a transmission shaft which comprises a cylindrical shaft body and is characterized in that the transmission shaft further comprises a gear, a flange plate, a first locking sleeve and a second locking sleeve, a first shaft shoulder piece and a second shaft shoulder piece are arranged on the shaft body, the first shaft shoulder piece and the second shaft shoulder piece are both integrally formed with the shaft body, and the first shaft shoulder piece and the second shaft shoulder piece are arranged on the gear. A first contact plane and a second contact plane are arranged on the shaft body, the gear is clamped on the shaft body in a sleeving manner through a through hole of the gear, and the flange plate is clamped on the shaft body in a sleeving manner through a through hole of the flange plate; and a gear plane is arranged on the hole wall of the through hole of the gear. The transmission shaft has the following beneficial effects that detachable installation of the flange plate and the gear on the shaft body is achieved, and replacement can be achieved only by disassembling the first locking sleeve or the second locking sleeve when replacement is needed.

Description

Technical Field

[0001] The utility model relates to the field of mechanical transmission equipment, in particular to a transmission shaft. Background Art

[0002] The shaft is the most common transmission component at present. Now some machines and equipment need to realize transmission between flanges and gears, and there is no contact between the flanges and gears. The commonly used method is to weld and fix a flange and a gear on a shaft. The flange and the gear are located at both ends of the shaft respectively. When docking, the gear on the shaft cooperates with the gear on the machine, and the flange on the shaft cooperates with the flange on the machine, so as to realize the transmission between the flange and the gear. There is a problem with this method of directly welding the flange and the gear on the shaft, that is, the gear will wear during use. So when the accuracy of the gear on the shaft does not meet the standard, the entire shaft, gear and flange must be replaced. Utility Model Content

[0003] Aiming at the above problems, the utility model provides a transmission shaft.

[0004] The technical solution adopted by the utility model is as follows:

[0005] A transmission shaft comprises a shaft body, the shaft body is cylindrical, and is characterized in that it also comprises a gear, a flange, a first locking sleeve and a second locking sleeve, the shaft body is provided with a first shoulder piece and a second shoulder piece, the first shaft shoulder piece and the second shoulder piece are both integrally formed with the shaft body, the shaft body is provided with a first contact plane and a second contact plane, the gear is clamped on the shaft body through its through hole sleeve, the flange is clamped on the shaft body through its through hole sleeve; a wheel plane is provided on the hole wall of the through hole of the gear A disk plane is arranged on the hole wall of the through hole of the flange plate, the wheel plane is close to the first contact plane, the disk plane is close to the second contact plane, the first locking sleeve and the second locking sleeve are both detachably arranged on the shaft body, the gear is clamped between the first shaft shoulder piece and the first locking sleeve, and the flange plate is clamped between the second shaft shoulder piece and the second locking sleeve; the shaft body is a shaft body made of 42CrMo material, the gear is a gear made of 42CrMo material, and the flange plate is a flange plate made of 42CrMo material.

[0006] In this solution, the gear is clamped on the shaft through its own through hole, and the flange is clamped on the shaft through its own through hole; a wheel plane is provided on the hole wall of the through hole of the gear, and a disk plane is provided on the hole wall of the through hole of the flange, the wheel plane is close to the first contact plane, and the disk plane is close to the second contact plane; with the help of the wheel plane close to the first contact plane and the disk plane close to the second contact plane, the gear and the flange can rotate together relative to the shaft, that is, the gear and the flange can rotate with the shaft, thereby realizing the linkage between the gear and the flange and the shaft.

[0007] At the same time, in this solution, since the flange is clamped by the second shoulder plate and the second locking sleeve, and the gear is clamped by the first shoulder plate and the first locking sleeve, when the flange and the gear rotate with the shaft, the flange and the gear will not move on the shaft.

[0008] In this solution, since the first locking sleeve and the second locking sleeve are both detachably mounted on the shaft body, when the flange or gear plate needs to be disassembled, only the first locking sleeve or the second locking sleeve needs to be removed to disassemble the gear or flange plate from the shaft body. When a new gear or flange plate is sleeved on the shaft body, the first locking sleeve or the second locking sleeve needs to be tightened again.

[0009] In summary, this transmission shaft realizes the detachable installation of the flange and the gear on the shaft body, and when replacement is needed, only the first locking sleeve or the second locking sleeve needs to be removed to achieve replacement.

[0010] It should be noted that this type of transmission shaft relies on the first locking sleeve and the second locking sleeve to hold the gear and the flange, so the stability of the gear and the flange on the shaft is weaker than that of the welding fixation method.

[0011] This type of transmission shaft, shaft body, flange and gear are all made of 42CrMo steel, which can ensure the strength of the entire transmission shaft.

[0012] Optionally, the first locking sleeve is detachably engaged with the shaft body via threads.

[0013] Specifically, a dedicated flat surface is provided on the first locking sleeve, and a wrench can use the dedicated flat surface (the wrench clamping flat surface) to unscrew and disassemble the first locking sleeve from the shaft body or install it on the shaft body.

[0014] Optionally, the second locking sleeve is sleeved on the shaft body, and the second locking sleeve is matched with the shaft body through a locking screw, and the locking screw is perpendicular to the shaft body.

[0015] The locking screw fixes the second locking sleeve and the shaft body together. The second locking sleeve can be disassembled from the shaft body by removing the locking screw.

[0016] Optionally, the first shoulder piece and the second shoulder piece are in a parallel and non-contacting state, and both the first shoulder piece and the second shoulder piece are perpendicular to the shaft body.

[0017] The first shoulder piece and the second shoulder piece are in a parallel and non-contacting state, and both the first shoulder piece and the second shoulder piece are perpendicular to the shaft body, so that the gear and the flange can be ensured to be in a parallel state.

[0018] The beneficial effect of the utility model is that the flange and the gear are detachably mounted on the shaft body, and when replacement is needed, only the first locking sleeve or the second locking sleeve needs to be removed to achieve replacement. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the transmission shaft structure;

[0020] Figure 2 It is a schematic diagram of the positional relationship between the flange and the gear;

[0021] Figure 3 It is a schematic diagram of the structure of the gear;

[0022] Figure 4 It is a schematic diagram of the structure of the flange.

[0023] The reference numerals in the figure are: 1. first locking sleeve; 2. gear; 201. wheel plane; 3. shaft body; 4. second shoulder plate; 5. flange plate; 501. disc plane; 6. first shoulder plate; 7. second locking sleeve; 8. locking screw. DETAILED DESCRIPTION

[0024] The utility model is described in detail below in conjunction with the accompanying drawings.

[0025] As attached Figure 1 , Attachment Figure 2 , Attachment Figure 3 And attached Figure 4As shown, a transmission shaft comprises a shaft body 3, the shaft body 3 is cylindrical, and is characterized in that it also comprises a gear 2, a flange 5, a first locking sleeve 1 and a second locking sleeve 7, a first shaft shoulder piece 6 and a second shaft shoulder piece 4 are arranged on the shaft body 3, the first shaft spacer and the second shaft shoulder piece 4 are integrally formed with the shaft body 3, a first contact plane (obstructed, so the reference numeral is not shown) and a second contact plane (obstructed, so the reference numeral is not shown) are arranged on the shaft body 3, the gear 2 is clamped on the shaft body 3 through its through hole sleeve, and the flange 5 is clamped on the shaft body 3 through its through hole sleeve; the gear 2 A wheel plane 201 is provided on the hole wall of the through hole, and a disk plane 501 is provided on the hole wall of the through hole of the flange 5. The wheel plane 201 is close to the first contact plane, and the disk plane 501 is close to the second contact plane. The first locking sleeve 1 and the second locking sleeve 7 are both detachably arranged on the shaft body 3. The gear 2 is clamped between the first shoulder piece 6 and the first locking sleeve 1, and the flange 5 is clamped between the second shoulder piece 4 and the second locking sleeve 7. The shaft body 3 is a shaft body 3 made of 42CrMo material, the gear 2 is a gear 2 made of 42CrMo material, and the flange 5 is a flange 5 made of 42CrMo material.

[0026] In this solution, since the gear 2 is clamped on the shaft body 3 through its own through-hole sleeve, and the flange 5 is clamped on the shaft body 3 through its own through-hole sleeve; a wheel plane 201 is provided on the hole wall of the through-hole of the gear 2, and a disk plane 501 is provided on the hole wall of the through-hole of the flange 5, the wheel plane 201 is close to the first contact plane, and the disk plane 501 is close to the second contact plane; with the help of the wheel plane 201 close to the first contact plane, and the disk plane 501 close to the second contact plane, the gear 2 and the flange 5 can rotate together relative to the shaft body 3, that is, the gear 2 and the flange 5 can rotate together with the shaft body 3, thereby realizing the linkage between the gear 2 and the flange 5 and the shaft body 3.

[0027] At the same time, in this solution, since the flange 5 is clamped by the second shoulder plate 4 and the second locking sleeve 7, and the gear 2 is clamped by the first shoulder plate 6 and the first locking sleeve 1, when the flange 5 and the gear 2 rotate with the shaft 3, the flange 5 and the gear 2 will not move on the shaft 3.

[0028] In this solution, since the first locking sleeve 1 and the second locking sleeve 7 are both detachably mounted on the shaft body 3, when it is necessary to disassemble the flange or the gear 2, it is only necessary to disassemble the first locking sleeve 1 or the second locking sleeve 7 to disassemble the gear 2 or the flange 5 from the shaft body 3. When a new gear 2 or flange 5 is sleeved on the shaft body 3, the first locking sleeve 1 or the second locking sleeve 7 can be tightened again.

[0029] In summary, this transmission shaft realizes the detachable installation of the flange 5 and the gear 2 on the shaft body 3, and when replacement is needed, only the first locking sleeve 1 or the second locking sleeve 7 needs to be removed to achieve replacement.

[0030] It should be noted that this transmission shaft relies on the first locking sleeve 1 and the second locking sleeve 7 to resist the gear 2 and the flange 5, so the stability of the gear 2 and the flange 5 on the shaft 3 is weaker than that of the fixing method such as welding.

[0031] In this transmission shaft, the shaft body 3, the flange 5 and the gear 2 are all made of 42CrMo steel, which can ensure the strength of the entire transmission shaft.

[0032] As attached Figure 1 , Attachment Figure 2 , Attachment Figure 3 And attached Figure 4 As shown, the first locking sleeve 1 is detachably matched with the shaft body 3 through threads.

[0033] Specifically, a dedicated flat surface is provided on the first locking sleeve 1 , and a wrench can use the dedicated flat surface (wrench clamping flat surface) to unscrew and disassemble the first locking sleeve 1 from the shaft body 3 or install it on the shaft body 3 .

[0034] As attached Figure 1 , Attachment Figure 2 , Attachment Figure 3 And attached Figure 4 As shown, the second locking sleeve 7 is sleeved on the shaft body 3 , and the second locking sleeve 7 is matched with the shaft body 3 through a locking screw 8 , and the locking screw 8 is perpendicular to the shaft body 3 .

[0035] The locking screw 8 fixes the second locking sleeve 7 and the shaft body 3 together. The second locking sleeve 7 can be disassembled from the shaft body 3 by removing the locking screw 8 .

[0036] As attached Figure 1 , Attachment Figure 2 , Attachment Figure 3 And attached Figure 4 As shown, the first shoulder piece 6 and the second shoulder piece 4 are in a parallel and non-contacting state, and the first shoulder piece 6 and the second shoulder piece 4 are both perpendicular to the shaft body 3 .

[0037] The first shoulder piece 6 and the second shoulder piece 4 are in a parallel and non-contact state, and both the first shoulder piece 6 and the second shoulder piece 4 are perpendicular to the shaft body 3, so that the gear 2 and the flange 5 can be ensured to be in a parallel state.

[0038] The above description is only a preferred embodiment of the present invention, and does not limit the patent protection scope of the present invention. Any equivalent transformations made using the contents of the present invention specification, directly or indirectly used in other related technical fields, are also included in the protection scope of the present invention.

Claims

1. A transmission shaft, comprising a shaft body, wherein the shaft body is cylindrical, characterized in that: The invention also includes a gear, a flange, a first locking sleeve and a second locking sleeve, the shaft body is provided with a first shoulder piece and a second shoulder piece, the first inter-shaft piece and the second shoulder piece are both integrally formed with the shaft body, the shaft body is provided with a first contact plane and a second contact plane, the gear is clamped on the shaft body through its through hole sleeve, and the flange is clamped on the shaft body through its through hole sleeve; a wheel plane is provided on the hole wall of the through hole of the gear, and a disc plane is provided on the hole wall of the through hole of the flange, the wheel plane is close to the first contact plane, and the disc plane is close to the second contact plane, the first locking sleeve and the second locking sleeve can be detachably arranged on the shaft body, the gear is clamped between the first shoulder piece and the first locking sleeve, and the flange is clamped between the second shoulder piece and the second locking sleeve; the shaft body is a shaft body made of 42CrMo material, the gear is a gear made of 42CrMo material, and the flange is a flange made of 42CrMo material.

2. The transmission shaft according to claim 1, characterized in that: The first locking sleeve is detachably matched with the shaft body through threads.

3. The transmission shaft according to claim 1, characterized in that: The second locking sleeve is sleeved on the shaft body, and the second locking sleeve is matched with the shaft body through a locking screw, and the locking screw is perpendicular to the shaft body.

4. The transmission shaft according to claim 1, characterized in that: The first shoulder piece and the second shoulder piece are in a parallel and non-contacting state, and both the first shoulder piece and the second shoulder piece are perpendicular to the shaft body.

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