Differential adjusting device

Abstract

The utility model discloses a differential adjusting device and relates to the technical field of transmission devices. The differential adjusting device comprises a driving shaft, a first belt wheel, a second belt wheel assembly, a first driving piece and a second driving piece. The two ends of the driving shaft are fixed through bearing seats respectively. The first belt wheel is fixedly connected with one end of the driving shaft. And the second belt wheel assembly is sleeved on the driving shaft through a bearing. The first driving part is used for driving the driving shaft to rotate so as to drive the first belt wheel to rotate. The second driving piece is used for driving the second belt wheel assembly to rotate. The speed difference output by the belt wheels can be directly adjusted when the belt wheels rotate, speed difference adjustment of the first belt wheel assembly and the second belt wheel assembly is achieved, disassembly is not needed, and working efficiency is high.

Description

Technical Field

[0001] The utility model relates to the technical field of transmission devices, and more specifically, to a differential speed adjusting device. Background Technique

[0002] The V-belt is one of the common transmission methods of the pre-arranged structure, and its main function is to realize the orderly arrangement of fruits and vegetables through differential speed adjustment.

[0003] Through research by the inventor, it is found that the existing differential speed adjustment structure is to coaxially arrange pulleys with different diameters. When the drive shaft rotates, the pulleys with different sizes output different speeds to achieve differential speed. Due to the limitation of its structure, during the transmission process, the speed difference output by the pulley is always fixed. To adjust the speed difference, only by changing the size of the pulley can it be achieved, which is troublesome to disassemble and cannot directly adjust the output speed difference. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a differential speed adjusting device, which can directly adjust the speed difference output when the pulley rotates, without disassembly, and has high working efficiency.

[0005] The embodiments of the utility model are implemented as follows:

[0006] In a first aspect, the utility model provides a differential speed adjusting device, including:

[0007] A driving shaft, both ends of which are respectively fixed through bearing seats;

[0008] A first pulley, which is fixedly connected to one end of the driving shaft;

[0009] A second pulley assembly, which is sleeved on the driving shaft through a bearing;

[0010] A first driving member, which is used to drive the driving shaft to rotate;

[0011] A second driving member, which is used to drive the second pulley assembly to rotate.

[0012] In an optional embodiment, the second pulley assembly includes a second pulley and a transmission connecting member, the transmission connecting member is fixed on both sides of the second pulley, and the transmission connecting member is used for transmission connection with the second driving member.

[0013] In an optional embodiment, the transmission connecting member is a pulley, a gear or a sprocket.

[0014] In an optional embodiment, a limiting baffle is arranged on one side of the bearing seat close to the end of the driving shaft, and the limiting baffle is sleeved on the driving shaft.

[0015] In an alternative embodiment, a bushing is further sleeved on the driving shaft, and the bushing abuts against the end of the second pulley assembly.

[0016] In an alternative embodiment, a first bearing and a second bearing are respectively arranged at two ends of the second pulley assembly. The second pulley assembly is sleeved on the driving shaft through the first bearing and the second bearing. The bushings are respectively arranged on two sides of the second pulley assembly, and the bushings respectively abut against the first bearing and the second bearing.

[0017] In an alternative embodiment, the bushing includes a first bushing and a second bushing. The first bushing is arranged close to the second pulley assembly, and the second bushing is arranged away from the second pulley assembly. The diameter of the first bushing is smaller than the diameter of the first bearing and smaller than the diameter of the second bearing.

[0018] In an alternative embodiment, a gap is provided between the second pulley assembly and the driving shaft.

[0019] In an alternative embodiment, the first pulley is a V-shaped pulley, and a V-shaped groove is provided on the first pulley.

[0020] In an alternative embodiment, one end of the driving shaft passes through the bearing seat, and the first pulley is connected to the end of the driving shaft passing through the bearing seat by a key.

[0021] The beneficial effects of the embodiments of the present utility model are as follows:

[0022] The differential adjustment device includes a driving shaft, a first pulley, a second pulley assembly, a first driving member and a second driving member. Both ends of the driving shaft are respectively fixed through bearing seats. The first pulley is fixedly connected to one end of the driving shaft. The second pulley assembly is sleeved on the driving shaft through a bearing. The first driving member is used to drive the driving shaft to rotate, and then drive the first pulley to rotate. The second driving member is used to drive the second pulley assembly to rotate. A bearing is arranged between the second pulley assembly and the driving shaft, so that the driving of the second pulley and the driving shaft can be separated. Thus, the first driving member indirectly drives the first pulley to rotate by driving the driving shaft to rotate, and the second driving member directly drives the second pulley assembly to rotate. When it is necessary to adjust the output speed difference between the first pulley and the second pulley assembly, only the output speeds of the first driving member and the second driving member need to be adjusted. The present utility model can directly adjust the output speed difference when the pulley rotates, realize the speed difference adjustment between the first pulley and the second pulley assembly, without disassembly, and has high working efficiency. Description of the Drawings

[0023] To more clearly illustrate the technical solutions of the embodiments of the present utility model, the accompanying drawings required for the embodiments will be briefly introduced below. It should be understood that the following accompanying drawings only show some embodiments of the present utility model and should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other related accompanying drawings can be obtained based on these drawings.

[0024] Figure 1 It is a schematic structural diagram of the differential adjustment device provided by the embodiment of the present utility model;

[0025] Figure 2 It is a cross-sectional view of the differential adjustment device provided by the embodiment of the present utility model.

[0026] Reference numerals: 100 - differential adjustment device; 10 - driving shaft; 11 - bearing seat; 12 - limit baffle; 20 - first pulley; 21 - V-shaped groove; 30 - second pulley assembly; 31 - second pulley; 32 - transmission connecting member; 33 - first bearing; 34 - second bearing; 40 - bushing; 41 - first bushing; 42 - second bushing. Specific embodiments

[0027] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. Usually, the components of the embodiments of the present utility model described and shown in the accompanying drawings here can be arranged and designed in various different configurations.

[0028] Therefore, the following detailed description of the embodiments of the present utility model provided in the accompanying drawings is not intended to limit the scope of the present utility model to be protected, but merely represents the selected embodiments of the present utility model. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present utility model.

[0029] It should be noted that: similar reference numerals and letters represent similar items in the following accompanying drawings. Therefore, once an item is defined in one accompanying drawing, it does not need to be further defined and explained in subsequent accompanying drawings.

[0030] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the present utility model is usually placed during use. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model. In addition, the terms "first", "second", "third", etc. are only used for differential description and should not be construed as indicating or implying relative importance.

[0031] In addition, terms such as "horizontal" and "vertical" do not mean that the components are required to be absolutely horizontal or hanging vertically, but can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0032] In the description of the present utility model, it should also be noted that unless otherwise clearly specified and defined, the terms "set", "installed", "connected", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0033] Please refer to Figure 1 and Figure 2 , this embodiment provides a differential adjustment device 100, which includes a driving shaft 10, a first pulley 20, a second pulley assembly 30, a first driving member and a second driving member. Both ends of the driving shaft 10 are respectively fixed by bearing seats 11. It can be understood that the driving shaft 10 can rotate within the bearing seats 11.

[0034] The first pulley 20 is fixedly connected to one end of the driving shaft 10. It can be understood that the first pulley 20 and the driving shaft 10 can rotate synchronously. Specifically, one end of the driving shaft 10 passes through the bearing seat 11. The first pulley 20 and the end of the driving shaft 10 passing through the bearing seat 11 are connected by a key. In this embodiment, the driving shaft 10 has a symmetrical structure and both ends pass through the bearing seats 11. The first pulley 20 can be optionally fixed to one end of the driving shaft 10 to enable the other end of the driving shaft 10 to be connected to a drive. The outside of the first pulley 20 is used to connect a transmission belt to drive the transmission belt to move.

[0035] The first driving member is used to drive the rotation of the driving shaft 10. Specifically, in this embodiment, the first driving member is a motor. The first driving member is drivingly connected to one end of the driving shaft 10 away from the first pulley 20 to drive the driving shaft 10 to rotate, thereby driving the first pulley 20 to rotate.

[0036] The second pulley assembly 30 is sleeved on the driving shaft 10 through a bearing. It can be understood that the second pulley assembly 30 is sleeved on the outer ring of the bearing, and the driving shaft 10 abuts against the inner ring of the bearing, and the transmission separation between the driving shaft 10 and the second pulley assembly 30 is realized through the bearing structure. When the first driving member drives the driving shaft 10 to rotate, the driving shaft 10 cannot drive the second pulley assembly 30 to rotate, but can only drive the first pulley 20 to rotate.

[0037] The second driving member in this embodiment is used to drive the rotation of the second pulley assembly 30.

[0038] Therefore, when it is necessary to adjust the output speed difference between the first pulley 20 and the second pulley assembly 30, only the output speeds of the first driving member and the second driving member need to be adjusted. It is possible to change the output speeds of the first driving member and the second driving member when the first pulley 20 and the second pulley assembly 30 are rotating, thereby changing the output speeds of the first pulley 20 and the second pulley assembly 30 and the output speed difference therebetween.

[0039] Specifically, the second output assembly includes a second pulley 31 and a transmission connecting member 32. The outer side of the second pulley 31 is used to connect a transmission belt to drive the transmission belt to move. The transmission connecting member 32 is fixed on both sides of the second pulley 31 and is used to be drivingly connected to the second driving member. When the second driving member drives the transmission connecting member 32 to rotate, the transmission connecting member 32 drives the second pulley 31 to rotate synchronously.

[0040] Furthermore, the transmission connecting member 32 is a pulley, a gear or a sprocket. When the transmission connecting member 32 is a pulley, the second driving member is a driving pulley, and the driving pulley is drivingly connected to the transmission connecting member 32 through a transmission belt; when the transmission connecting member 32 is a gear, the second driving member is a driving gear, the transmission connecting member 32 is a driven gear, and the driving gear is directly meshed with the driven gear to achieve transmission; when the transmission connecting member 32 is a sprocket, the second driving member is a driving sprocket, and the driving sprocket is drivingly connected to the transmission connecting member 32 through a chain.

[0041] In this embodiment, a limit baffle 12 is provided on one side of the bearing seat 11 close to the end of the driving shaft 10. The limit baffle 12 is sleeved on the driving shaft 10. Specifically, the limit baffle 12 is used to limit the axial position of the first pulley 20. During installation, first sleeve the limit baffle 12 on one side of the end of the driving shaft 10, make the limit baffle 12 abut against the bearing seat 11, then connect the first pulley 20 to the driving shaft 10 through a semi-circular flat key, and make the first pulley 20 abut against the limit baffle 12, so that the first pulley 20 is installed in place, preventing the first pulley 20 from abutting against the bearing seat 11. Further, a limit baffle 12 is also provided at the other end of the driving shaft 10 away from the first pulley 20 to prevent other structures from abutting against the bearing seat 11.

[0042] Further, a shaft sleeve 40 is also provided on the driving shaft 10. The shaft sleeve 40 abuts against the end of the second pulley assembly 30 and is used to limit the axial position of the second pulley assembly 30.

[0043] Specifically, a first bearing 33 and a second bearing 34 are respectively provided at both ends of the second pulley assembly 30. The second pulley assembly 30 is sleeved on the driving shaft 10 through the first bearing 33 and the second bearing 34. The shaft sleeves 40 are respectively arranged on both sides of the second pulley assembly 30. And the shaft sleeves 40 respectively abut against the first bearing 33 and the second bearing 34. Since the transmission between the second pulley assembly 30 and the driving shaft 10 is separated, the transmission between the second pulley assembly 30 and the shaft sleeve 40 is also separated. The shaft sleeve 40 abuts against the bearings of the second pulley assembly 30 to prevent the second pulley assembly 30 from contacting the shaft sleeve 40 and affecting the rotation of the second pulley assembly 30.

[0044] In this embodiment, the shaft sleeve 40 includes a first shaft sleeve 41 and a second shaft sleeve 42. The first shaft sleeve 41 is arranged close to the second pulley assembly 30. The second shaft sleeve 42 is arranged away from the second pulley assembly 30 and abuts against the first bearing 33. The diameter of the first shaft sleeve 41 is smaller than the diameter of the first bearing 33 and smaller than the diameter of the second bearing 34. It can be understood that when the first shaft sleeve 41 abuts against the first bearing 33 and the second bearing 34, the first shaft sleeve 41 does not contact the second pulley assembly 30, preventing the first shaft sleeve 41 from rubbing against the second pulley assembly 30 when the rotation speeds of the second pulley assembly 30 and the driving shaft 10 are different.

[0045] Further, in this embodiment, the second shaft sleeve 42 is axially fixed to the driving shaft 10 through a shaft shoulder on the driving shaft 10. Specifically, the second shaft sleeve 42 abuts against the shaft shoulder on the driving shaft 10. The first shaft sleeve 41 abuts between the second pulley assembly 30 and the first shaft sleeve 41, thereby axially fixing the second pulley assembly 30.

[0046] In order to prevent friction caused by different rotational speeds between the driving shaft 10 and the second pulley assembly 30, a gap is provided between the second pulley assembly 30 and the driving shaft 10. Specifically, the inner diameter of the second pulley assembly 30 is larger than the diameter of the driving shaft 10.

[0047] In this embodiment, both the first pulley 20 and the second pulley 31 are V-shaped pulleys, and the transmission belt is a V-shaped belt. In order to prevent the V-shaped belt from running off track, V-shaped grooves 21 are provided on the first pulley 20 and the second pulley 31.

[0048] The working principle of the differential speed adjustment device 100 provided by the embodiment of the present utility model is as follows:

[0049] When it is necessary to adjust the rotational speed of the first pulley 20, the output rotational speed of the first driving member is changed, thereby adjusting the rotational speed of the driving shaft 10, and the rotational speed of the first pulley 20 is adjusted through the driving shaft 10; when it is necessary to adjust the rotational speed of the second pulley 31, the output speed of the second driving member is changed, and the rotational speed of the second pulley 31 is directly adjusted through the second driving member. By respectively adjusting the rotational speeds of the first pulley 20 and the second pulley 31 through the first driving member and the second driving member, the rotational speed difference between the first pulley 20 and the second pulley 31 is adjusted.

[0050] The beneficial effects of the differential speed adjustment device 100 provided by the embodiment of the present utility model are as follows:

[0051] This differential speed adjustment device 100 includes a driving shaft 10, a first pulley 20, a second pulley assembly 30, a first driving member, and a second driving member. Both ends of the driving shaft 10 are respectively fixed through bearing seats 11. The first pulley 20 is fixedly connected to one end of the driving shaft 10. The second pulley assembly 30 is sleeved on the driving shaft 10 through a bearing. The first driving member is used to drive the driving shaft 10 to rotate, and then drive the first pulley 20 to rotate. The second driving member is used to drive the second pulley assembly 30 to rotate. A bearing is provided between the second pulley assembly 30 and the driving shaft 10, which can drive the separation between the second pulley 31 and the driving shaft 10. Thus, it is realized that the first driving member indirectly drives the first pulley 20 to rotate by driving the driving shaft 10 to rotate, and the second driving member directly drives the second pulley assembly 30 to rotate. When it is necessary to adjust the output speed difference between the first pulley 20 and the second pulley assembly 30, only the output speeds of the first driving member and the second driving member need to be adjusted. The present utility model can directly adjust the output speed difference when the pulley rotates, realize the speed difference adjustment between the first pulley 20 and the second pulley assembly 30, without disassembly, and has high working efficiency.

[0052] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. For those skilled in the art, various modifications and variations can be made to the present utility model. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A differential adjustment device, characterized in that, Comprising: A driving shaft, both ends of the driving shaft are fixed by bearing seats respectively; A first pulley, the first pulley is fixedly connected to one end of the driving shaft; A second pulley assembly, the second pulley assembly is sleeved on the driving shaft through a bearing; A first driving member, the first driving member is used to drive the driving shaft to rotate; A second driving member, the second driving member is used to drive the second pulley assembly to rotate.

2. The differential adjustment device according to claim 1, characterized in that The second pulley assembly includes a second pulley and a transmission connecting member, the transmission connecting member is fixed on both sides of the second pulley, and the transmission connecting member is used for driving connection with the second driving member.

3. The differential adjustment device according to claim 2, wherein, The transmission connecting member is a pulley, a gear or a sprocket.

4. The differential adjustment device according to claim 1, characterized in that A limiting baffle is arranged on one side of the bearing seat close to the end of the driving shaft, and the limiting baffle is sleeved on the driving shaft.

5. The differential adjustment device according to claim 1, characterized in that, A shaft sleeve is also sleeved on the driving shaft, and the shaft sleeve abuts against the end of the second pulley assembly.

6. The differential adjustment device according to claim 5, characterized in that, First bearings and second bearings are respectively arranged at both ends of the second pulley assembly, the second pulley assembly is sleeved on the driving shaft through the first bearings and the second bearings, the shaft sleeves are respectively arranged on both sides of the second pulley assembly, and the shaft sleeves respectively abut against the first bearings and the second bearings.

7. The differential adjustment device according to claim 6, wherein The shaft sleeve includes a first shaft sleeve and a second shaft sleeve, the first shaft sleeve is arranged close to the second pulley assembly, the second shaft sleeve is arranged away from the second pulley assembly, and the diameter of the first shaft sleeve is smaller than the diameters of the first bearing and the second bearing.

8. The differential adjustment device according to claim 1, characterized in that, A gap is provided between the second pulley assembly and the driving shaft.

9. The differential adjustment device according to claim 1, characterized in that The first pulley is a V-belt pulley, and a V-groove is arranged on the first pulley.

10. The differential adjustment device according to claim 1, characterized in that, One end of the driving shaft passes through the bearing seat, and the first pulley is key-connected to the end of the driving shaft passing through the bearing seat.

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