Wear-resistant synchronous pulley

Abstract

The utility model relates to the field of synchronous belt wheels, in particular to a wear-resistant synchronous belt wheel. A mounting ring is fixedly connected to the surface of the connecting shaft, an outer driving wheel is arranged on one side of the mounting ring, and the outer driving wheel is in sliding connection with the surface of the mounting ring; the installation mechanism used for installing the device in a combined mode is arranged on one side of the installation ring, during installation, the installation ring is inserted into the outer driving wheel, the attachment driving assembly can tightly connect the installation ring with the outer driving wheel, and the connection attachment area and the connection effect during driving are increased; by means of the outer driving wheel, when the attaching driving assembly is spliced and connected, the attaching driving assembly does not operate and is unlocked automatically, splicing of the attaching driving assembly is more stable, the orientation assembly positions the mounting direction of the attaching driving assembly, and the mounting direction is convenient to confirm.

Description

Technical Field

[0001] The utility model relates to the field of synchronous pulleys, in particular to a wear-resistant synchronous pulley. Background Art

[0002] When synchronous belt transmission is used, the common transmission method in the prior art is generally composed of two synchronous pulleys and an annular synchronous belt. The two synchronous pulleys can be connected by the synchronous belt to rotate synchronously. There are many advantages such as no slipping during transmission and accurate transmission ratio. However, because there is no slipping during transmission, there is no protection effect. When the transmission exceeds the load, it will be directly damaged;

[0003] After searching, a Chinese patent discloses a wear-resistant synchronous pulley (publication number CN 215172039U). This patented technology only requires replacing the left plate and the right plate, which increases the scope of use and the effect of use. It has broad market value and is worthy of promotion. However, in the technical solution of the above patent document, the connection and fitting are only carried out by bolts. The contact area is small during transmission, which will produce a large side shear force on the protruding part of the connection, which is prone to wear and damage. At the same time, the bolt connection is easy to loosen after a period of use, causing horizontal sliding at the connection and causing wear.

[0004] Therefore, a wear-resistant synchronous pulley is proposed to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide a wear-resistant synchronous pulley in order to solve the above-mentioned problem, which improves the problem of connection and fitting only by bolts, where the contact area is small during transmission, a large side shear force will be generated on the protruding part of the connection, and wear and damage will easily occur. At the same time, the bolt connection will easily loosen after being used for a period of time, causing horizontal sliding at the connection and causing wear.

[0006] The utility model achieves the above-mentioned purpose through the following technical solutions. A wear-resistant synchronous pulley comprises: a connecting shaft, a mounting ring is fixedly connected to the surface of the connecting shaft, an outer driving wheel is arranged on one side of the mounting ring, and the outer driving wheel is slidably connected to the surface of the mounting ring; a mounting mechanism, the mounting mechanism for assembling and installing the device is arranged on one side of the mounting ring; a directional component, the directional component is arranged on one side of the mounting mechanism for positioning the mounting direction when the mounting mechanism is installed to prevent installation errors; wherein the mounting mechanism comprises a fitting drive component arranged on one side of the mounting ring to reduce wear through a fitting effect, and a locking component is arranged on one side of the fitting drive component.

[0007] Preferably, the fitting drive assembly includes a plurality of cylindrical head bolts threadedly connected to the inner wall of the mounting ring, the inner wall of the outer drive wheel is slidably connected to a first fitting disk, the circumferential surface of the mounting ring is fixedly connected to a plurality of forked drive columns, the plurality of forked drive columns are evenly distributed on the circumferential surface of the mounting ring, the angles between two adjacent forked drive columns are equal, the mounting ring is fitted to the inner wall of the outer drive wheel through the plurality of forked drive columns, the fitting drive assembly can stably push the outer drive wheel, and the larger pushing area can reduce the tangential force on the inner wall of the outer drive wheel during pushing, thereby reducing wear during transmission.

[0008] Preferably, one end of the mounting ring is fixedly connected to a second fitting disk, and the second fitting disk fits with the inner wall of the outer driving wheel. The second fitting disk can limit the installation depth and make the installation more stable.

[0009] Preferably, the locking components are provided in multiple groups, each group of the locking components includes a connecting groove opened on the surface of the cylindrical head bolt, the side end of the first fitting disk is provided with an installation groove, the surface of the cylindrical head bolt is sleeved with a locking ring, and the locking ring is slidably connected to the inner wall of the installation groove. The locking components can be used to lock the rotation of the cylindrical head bolt when the device is in use to prevent the cylindrical head bolt from rotating on its own and causing loosening and wear.

[0010] Preferably, a fixing protrusion is integrally formed on the surface of the locking ring, and a fixing groove is formed on the inner wall of the installation groove. The fixing protrusion fits with the inner wall of the fixing groove, and the locking ring can be made more stable in the installation groove through the fixing protrusion.

[0011] Preferably, a connecting pad is fixedly connected to the surface of the locking ring, a fixing groove is opened on the circumferential inner wall of the installation groove, and the connecting pad is fitted with the inner wall of the fixing groove. The connecting pad and the fixing groove ensure that the locking ring will not be detached during installation, and is more stable.

[0012] Preferably, a pull-out groove is provided at the side end of the locking ring, and the inner wall of the pull-out groove is "L"-shaped, so that the locking ring can be easily pulled out through the pull-out groove for easy disassembly.

[0013] Preferably, the orientation component includes positioning grooves opened on the circumferential surfaces of the second bonding disk and the first bonding disk, and the circumferential inner wall of the outer driving wheel is fixedly connected with a positioning protrusion, and the positioning groove is fitted with the positioning protrusion. The orientation component can be used to position the installation direction to prevent the installation direction from being wrong and affecting the splicing.

[0014] The beneficial effects of the utility model are:

[0015] 1. When installing, the mounting ring is inserted into the outer drive wheel. The fitting drive assembly can tightly connect the mounting ring with the outer drive wheel, increase the connection fitting area and connection effect during driving, and reduce the wear of the mounting ring and the outer drive wheel during use. The outer drive wheel can make the fitting drive assembly not automatically unlock when it is spliced ​​and connected, making the splicing of the fitting drive assembly more stable. The directional assembly locates the installation direction of the fitting drive assembly, which is convenient for confirming the installation direction;

[0016] 2. When disassembling the device, the existing curved-mouth circlip pliers can be inserted into the pull-out groove, and then the circlip pliers can be pulled to quickly remove the locking ring. Disassembly with special tools can also prevent non-staff from disassembling and damaging. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a main perspective view of the utility model;

[0018] Figure 2 It is a schematic diagram of the structure of the utility model;

[0019] Figure 3 For the utility model Figure 2 A magnified view of middle;

[0020] Figure 4 This is an exploded view of the present invention.

[0021] In the figure: 1. Mounting ring; 2. Outer drive wheel; 3. Connecting shaft; 4. Orienting assembly; 401. Positioning protrusion; 402. Positioning groove; 5. Mounting mechanism; 501. Fitting drive assembly; 5011. Cylindrical head bolt; 5012. First fitting disk; 5013. Second fitting disk; 5014. Forked drive column; 502. Locking assembly; 5021. Locking ring; 5022. Connecting groove; 5023. Fixing protrusion; 5024. Fixing groove; 5025. Connecting pad; 5026. Fixing groove; 5027. Mounting groove; 5028. Pull-out groove. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] When implementing: Figure 1-4As shown, a wear-resistant synchronous pulley comprises: a connecting shaft 3, a mounting ring 1 is fixedly connected to the surface of the connecting shaft 3, an outer driving wheel 2 is arranged on one side of the mounting ring 1, and the outer driving wheel 2 is slidably connected to the surface of the mounting ring 1; a mounting mechanism 5, which is used to assemble and install the device and is arranged on one side of the mounting ring 1; an orientation component 4, which is used to locate the installation direction when the mounting mechanism 5 is installed to prevent the orientation component 4 from being installed incorrectly and is arranged on one side of the mounting mechanism 5; wherein the mounting mechanism 5 comprises a fitting drive component 501 which is arranged on one side of the mounting ring 1 and reduces wear through the fitting effect, and a locking component 502 is arranged on one side of the fitting drive component 501, and when the device is assembled, the outer driving wheel 2 is inserted into the mounting ring 1 through the mounting ring 1. In the driving wheel 2, the mounting ring 1 is tightly connected to the outer driving wheel 2 through the fitting driving component 501, which increases the connection fitting area and connection effect during driving and reduces the wear of the mounting ring 1 and the outer driving wheel 2 during use. The outer driving wheel 2 can ensure that when the fitting driving component 501 is assembled and connected, the fitting driving component 501 will not unlock itself due to movement and shaking during operation, making the assembly of the fitting driving component 501 more stable. When the fitting driving component 501 is installed, the orientation component 4 locates the installation direction of the fitting driving component 501 to facilitate confirmation of the installation direction. The surface of the outer driving wheel 2 has multiple teeth, which can cooperate with the external synchronous belt for transmission, and the connecting shaft 3 can be connected to the external driving shaft.

[0024] like Figure 2 and Figure 3 As shown, the fitting drive assembly 501 includes a plurality of cylindrical head bolts 5011 threadedly connected to the inner wall of the mounting ring 1, and the inner wall of the outer drive wheel 2 is slidably connected to a first fitting disk 5012, and a plurality of forked drive columns 5014 are fixedly connected to the circumferential surface of the mounting ring 1, and the plurality of forked drive columns 5014 are evenly distributed on the circumferential surface of the mounting ring 1, and the angles between two adjacent forked drive columns 5014 are equal. The mounting ring 1 fits with the inner wall of the outer drive wheel 2 through the plurality of forked drive columns 5014, and the surface of the forked drive columns 5014 is square and has a certain contact area, which greatly disperses the shear force between the mounting ring 1 and the outer drive wheel 2 during drive output, and effectively reduces the shear force between the mounting ring 1 and the outer drive wheel 2 The wear at the connection between the wheel 2 is prevented, and a second fitting disk 5013 is fixedly connected to one end of the mounting ring 1, and the second fitting disk 5013 fits against the inner wall of the outer drive wheel 2. When assembled through this device, the outer drive wheel 2 is first pushed to fit into the forked drive column 5014 and the surface of the mounting ring 1 until they fit against one side of the second fitting disk 5013. At this time, the first fitting disk 5012 is fitted to the side of the outer drive wheel 2 away from the second fitting disk 5013, and the cylindrical head bolt 5011 is inserted into the inner wall of the forked drive column 5014 for threaded installation. At this time, the cylindrical head bolt 5011 pushes the first fitting disk 5012 and the outer drive wheel 2 to connect with the forked drive column 5014, and the installation is completed, which is more convenient.

[0025] like Figure 2 and Figure 3 As shown, the locking assembly 502 is provided with multiple groups, each group of locking assemblies 502 includes a connecting groove 5022 opened on the surface of the cylindrical head bolt 5011, a mounting groove 5027 is opened on the side end of the first fitting disk 5012, a locking ring 5021 is sleeved on the surface of the cylindrical head bolt 5011, and the locking ring 5021 is slidably connected with the inner wall of the mounting groove 5027. When the threaded installation of the cylindrical head bolt 5011 is completed, the locking ring 5021 fits the cylindrical head bolt 5011 and the surface of the connecting groove 5022, and the locking ring 502 The surface of the locking ring 5021 is integrally formed with a fixing protrusion 5023, and the inner wall of the mounting groove 5027 is provided with a fixing groove 5024. The fixing protrusion 5023 fits with the inner wall of the fixing groove 5024. At this time, the locking ring 5021 cannot rotate due to the combination of the fixing protrusion 5023 and the fixing groove 5024, and the cylindrical head bolt 5011 cannot rotate at the same time, which can prevent the cylindrical head bolt 5011 from rotating by itself during use, resulting in gap movement and wear at the connection. The surface of the locking ring 5021 is fixedly connected with a connecting pad 5025, and the locking ring 5021 is installed. A fixing groove 5026 is provided on the inner wall of the groove 5027, and the connecting pad 5025 is fitted with the inner wall of the fixing groove 5026. The connecting pad 5025 is made of rubber, and the circumference of the connecting pad 5025 is greater than the inner wall of the installation groove 5027 and fits with the inner wall of the fixing groove 5026. At this time, the locking ring 5021 is on the inner wall of the installation groove 5027 and is not easy to be separated. A pull-off groove 5028 is provided on the side end of the locking ring 5021, and the inner wall of the pull-off groove 5028 is "L" shaped. When disassembling the device, a curved-mouth circlip pliers can be inserted into the pull-off groove 5028. The locking ring 5021 can be quickly taken out and disassembled by special tools to prevent damage by non-staff. The directional assembly 4 includes a positioning groove 402 opened on the circumferential surface of the second bonding disk 5013 and the first bonding disk 5012. The circumferential inner wall of the outer driving wheel 2 is fixedly connected with a positioning protrusion 401, and the positioning groove 402 is fitted with the positioning protrusion 401. When the first bonding disk 5012 and the second bonding disk 5013 are installed, the installation direction can be quickly confirmed by the overlapping direction of the positioning groove 402 and the positioning protrusion 401.

[0026] When the utility model is in use, when the device is installed, first confirm the installation direction by the overlapping direction of the positioning protrusion 401 and the positioning groove 402, and at the same time push the outer drive wheel 2 to fit the forked drive column 5014 and the surface of the installation ring 1 until the outer drive wheel 2 fits against the side of the second fitting disk 5013, at this time, the first fitting disk 5012 is slid to fit the side of the outer drive wheel 2 away from the second fitting disk 5013, and at the same time, a plurality of cylindrical head bolts 5011 are inserted into the forked drive column 5014 in sequence for threaded installation. At this time, the first fitting disk 5012 is squeezed and pushed by the cylindrical head bolt 5011, so that the outer drive wheel 2 is connected to the forked drive column 5014. When the threaded installation of the cylindrical head bolt 5011 is completed, the locking ring 50 21 is inserted into the installation groove 5027, and the locking ring 5021 fits the surface of the cylindrical head bolt 5011 and the connecting groove 5022. The locking ring 5021 cannot rotate by the combination of the fixing protrusion 5023 and the fixing groove 5024. At the same time, the cylindrical head bolt 5011 cannot rotate, which can prevent the cylindrical head bolt 5011 from rotating by itself during use. When disassembling the device, it can be disassembled by bent-mouth circlip pliers. At this time, the assembly installation and disassembly process is completed. The shape and large contact area of ​​the forked drive column 5014 reduce the wear and tear during the transmission operation process. The locking component 502 prevents the cylindrical head bolt 5011 from self-rotation and loosening after installation, thereby preventing the connection gap after partial loosening, which causes parallel sliding wear of the outer drive wheel 2.

[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 wear-resistant synchronous pulley, characterized in that: include: A connecting shaft (3), a mounting ring (1) being fixedly connected to the surface of the connecting shaft (3), an outer driving wheel (2) being arranged on one side of the mounting ring (1), and the outer driving wheel (2) being slidably connected to the surface of the mounting ring (1); A mounting mechanism (5), which is used for mounting the device in combination and is arranged on one side of the mounting ring (1); An orientation component (4) is used to locate the installation direction when the installation mechanism (5) is installed to prevent installation errors, wherein the orientation component (4) is arranged on one side of the installation mechanism (5); The mounting mechanism (5) comprises a fitting drive component (501) arranged on one side of the mounting ring (1) to reduce wear through a fitting effect, and a locking component (502) is arranged on one side of the fitting drive component (501).

2. The wear-resistant synchronous pulley according to claim 1, characterized in that: The fitting drive assembly (501) comprises a plurality of cylindrical head bolts (5011) threadedly connected to the inner wall of the mounting ring (1); the inner wall of the outer drive wheel (2) is slidably connected to a first fitting disk (5012); the circumferential surface of the mounting ring (1) is fixedly connected to a plurality of forked drive columns (5014); the plurality of forked drive columns (5014) are evenly distributed on the circumferential surface of the mounting ring (1); the angles between two adjacent forked drive columns (5014) are equal; the mounting ring (1) fits the inner wall of the outer drive wheel (2) via the plurality of forked drive columns (5014).

3. The wear-resistant synchronous pulley according to claim 2, characterized in that: One end of the mounting ring (1) is fixedly connected to a second fitting disk (5013), and the second fitting disk (5013) fits against the inner wall of the outer driving wheel (2).

4. The wear-resistant synchronous pulley according to claim 2, characterized in that: The locking components (502) are provided in multiple groups, and each group of the locking components (502) includes a connecting groove (5022) opened on the surface of the cylindrical head bolt (5011), and the side end of the first fitting disk (5012) is opened with a mounting groove (5027), and the surface of the cylindrical head bolt (5011) is provided with a locking ring (5021), and the locking ring (5021) is slidably connected to the inner wall of the mounting groove (5027).

5. The wear-resistant synchronous pulley according to claim 4, characterized in that: The surface of the locking ring (5021) is integrally formed with a fixing protrusion (5023), the inner wall of the mounting groove (5027) is provided with a fixing groove (5024), and the fixing protrusion (5023) is fitted with the inner wall of the fixing groove (5024).

6. The wear-resistant synchronous pulley according to claim 4, characterized in that: A connection pad (5025) is fixedly connected to the surface of the locking ring (5021), a fixing groove (5026) is opened on the circumferential inner wall of the installation groove (5027), and the connection pad (5025) is fitted with the inner wall of the fixing groove (5026).

7. The wear-resistant synchronous pulley according to claim 4, characterized in that: A pull-out groove (5028) is provided at the side end of the locking ring (5021), and the inner wall of the pull-out groove (5028) is in an "L" shape.

8. The wear-resistant synchronous pulley according to claim 2, characterized in that: The orientation assembly (4) comprises positioning grooves (402) formed on the circumferential surfaces of the second bonding disk (5013) and the first bonding disk (5012); a positioning protrusion (401) is fixedly connected to the inner circumferential wall of the outer driving wheel (2); and the positioning grooves (402) are in contact with the positioning protrusion (401).

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