Transmission device, single-drive edge grinding machine and dual-drive edge grinding machine

Abstract

The utility model discloses a transmission device, a single-drive edge grinding machine and a dual-drive edge grinding machine, and relates to the technical field of edge grinding machines, the transmission device comprises a driving motor, a transmission shaft, a transmission shaft, a transmission shaft, a transmission shaft and a transmission shaft, the gear box comprises a gear box body, a driven shaft, a first cavity and a second cavity, and the transmission shaft sequentially penetrates through the gear box body and the first cavity and is connected with a main synchronous pulley of the edge grinding machine; one end of the driven shaft is located in the gearbox body, and the other end of the driven shaft penetrates through the second cavity and is connected with a driven synchronous belt wheel of the edge grinding machine. The peripheral wall of the transmission shaft and the peripheral wall of the driven shaft are each sleeved with one first shaft sleeve; the first bearing assemblies are arranged in the first cavity and the second cavity respectively; each first bearing assembly comprises at least two first bearings and at least one second bearing, and inner rings of the first bearings and inner rings of the second bearings are connected with the first shaft sleeves located in the same cavity.

Description

Technical Field

[0001] This utility model relates to the field of edge grinding machine technology, and in particular to a transmission device and a single-drive edge grinding machine and a double-drive edge grinding machine. Background Technology

[0002] The edge grinding machine clamps the brick blanks using two synchronous belts moving at equal speeds, and these belts move relative to the grinding wheels, causing the edges of the brick blanks to be ground. Due to the high hardness of ceramic materials and the large grinding resistance, the drive unit must overcome significant resistance when driving the upper and lower synchronous belts. This results in increased radial and axial alternating loads on the bearings, leading to fatigue spalling of the bearing raceways and shortening their service life. Therefore, the edge grinding line needs to be shut down periodically to replace the bearings in the main drive unit, which is detrimental to improving processing efficiency and stability. Utility Model Content

[0003] In order to overcome the shortcomings of the prior art, this utility model provides a transmission device and a single-drive edge grinding machine and a double-drive edge grinding machine, which can distribute the load force on the drive shaft and the driven shaft, and can significantly improve the durability of the transmission device.

[0004] To solve the above-mentioned technical problems, this utility model provides a transmission device for an edge grinding machine in a first aspect. The transmission device includes: a drive motor, the power output end of which is connected to a drive shaft; a gearbox, including a gearbox body, a driven shaft, a first cavity, and a second cavity, wherein the drive shaft passes sequentially through the gearbox body and the first cavity and is connected to the main synchronous pulley of the edge grinding machine; one end of the driven shaft is located inside the gearbox body, and the other end of the driven shaft passes through the second cavity and is connected to the driven synchronous pulley of the edge grinding machine; and a first bushing, wherein the outer peripheral walls of the drive shaft and the driven shaft are respectively fitted with a first bushing, and the two bushings are... The first end of the first bushing is connected to the gear set in the gearbox body, the second end of the first bushing sleeve fitted on the transmission shaft is connected to the main synchronous pulley, and the second end of the first bushing sleeve fitted on the driven shaft is connected to the driven synchronous pulley; a first bearing assembly is provided in the first cavity and the second cavity respectively; each first bearing assembly includes at least two first bearings and at least one second bearing, and the inner rings of the first bearings and the second bearings are respectively connected to the first bushing sleeve located in the same cavity; a positioning assembly is fitted on the first bushing and is used to axially position the first bushing sleeve.

[0005] As an improvement to the above solution, both the first cavity and the second cavity are provided with: a first mounting groove, which is located on the side of the first cavity or the second cavity near the drive motor, and a first bearing and / or a second bearing are fixed in the first mounting groove; and a second mounting groove, which is located on the side of the first cavity or the second cavity near the main synchronous pulley, and a first bearing and a second bearing are fixed in the second mounting groove.

[0006] As an improvement to the above solution, the first bearing is a deep groove ball bearing and the second bearing is a cylindrical roller bearing; or, both the first bearing and the second bearing are deep groove ball bearings; or, both the first bearing and the second bearing are cylindrical roller bearings.

[0007] As an improvement to the above solution, the positioning component includes end caps, with two end caps fitted on each of the first bushings, and the two end caps respectively disposed at the entrance and exit of the first cavity or the second cavity; the outer wall of the end cap in the circumferential direction abuts against the inner wall of the first cavity or the second cavity.

[0008] As an improvement to the above solution, the first bushing is provided with: a first bayonet for connecting the first bearing and the second bearing; a second bayonet for connecting the end cover; and a third bayonet for connecting the main synchronous pulley or the auxiliary synchronous pulley.

[0009] As an improvement to the above solution, the transmission device further includes a filling assembly; the filling assembly includes grease filled in the gap between the first cavity and the second cavity.

[0010] In a second aspect, this utility model provides a single-drive edge grinding machine, which includes a first main synchronous pulley, a second main synchronous pulley, a first driven synchronous pulley, and a second driven synchronous pulley. The single-drive edge grinding machine comprises: a support base, which has a third cavity and a fourth cavity; a transmission device, wherein the transmission shaft of the transmission device passes sequentially through the first main synchronous pulley and the second main synchronous pulley and is connected to the third cavity; and the driven shaft of the transmission device passes sequentially through the first driven synchronous pulley and the second driven synchronous pulley and is connected to the fourth cavity.

[0011] As an improvement to the above solution, the single-drive edge grinding machine further includes: a second bushing, respectively fitted onto the outside of the drive shaft and the driven shaft; one end of the second bushing abuts against the side wall of the third or fourth cavity, and the second end of the second bushing is connected to the second main synchronous pulley or the second driven synchronous pulley; a second bearing assembly, respectively disposed in the third and fourth cavities; each cavity is provided with at least two first bearings and at least one second bearing, the inner rings of the first bearings and the second bearings being respectively connected to the second bushing; a positioning assembly, fitted onto the second bushing, for axial positioning of the first bushing; and a filling assembly, disposed in the gap between the third and fourth cavities.

[0012] As an improvement to the above solution, both the third cavity and the fourth cavity are provided with: a third mounting groove, which is located on the side of the third cavity or the fourth cavity away from the second main synchronous pulley, and a first bearing and / or a second bearing are fixed in the third mounting groove; and a fourth mounting groove, which is located on the side of the third cavity or the fourth cavity close to the second main synchronous pulley, and a first bearing and a second bearing are fixed in the second mounting groove.

[0013] In a third aspect, this utility model provides a dual-drive edge grinding machine. The edge grinding machine is equipped with a first main synchronous pulley, a second main synchronous pulley, a first driven synchronous pulley, and a second driven synchronous pulley. The dual-drive edge grinding machine includes two transmission devices, namely a first transmission device and a second transmission device. The transmission shaft of the first transmission device is connected to the first main synchronous pulley, and the driven shaft of the first transmission device is connected to the first driven synchronous pulley. The transmission shaft of the second transmission device is connected to the second main synchronous pulley, and the driven shaft of the second transmission device is connected to the second driven synchronous pulley.

[0014] The beneficial effects of implementing this utility model are as follows:

[0015] The transmission device of this utility model, combined with the multi-chamber structure of the gearbox, significantly improves the durability of the transmission device by distributing the load force on the drive shaft and driven shaft by sleeved with two types of bearings on the drive shaft and driven shaft; by setting a positioning component to axially position the drive shaft and driven shaft, the sway during transmission is reduced, thereby reducing the wear of the bearings. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of a transmission device in this embodiment 1;

[0017] Figure 2 This is a partial structural schematic diagram of a transmission device in this embodiment 1;

[0018] Figure 3This is a schematic diagram of the transmission structure of a single-drive edge grinding machine in this embodiment;

[0019] Figure 4 This is a schematic diagram of the transmission structure of a dual-drive edge grinding machine in this embodiment;

[0020] Figure 5 This is an exploded view of the structure of a transmission device in Embodiment 2.

[0021] The reference numerals in the attached drawings are explained as follows: 100, drive motor; 110, transmission shaft; 210, gearbox body; 220, first cavity; 221, first a mounting groove; 2211, first groove wall; 222, second a mounting groove; 2221, second groove wall; 230, second cavity; 240, driven shaft; 310, first bushing; 320, second bushing; 410, first bearing; 420, second bearing; 510, end cover; 600, support seat; 610, third cavity; 620, fourth cavity; 630, third bushing; 710, main synchronous pulley; 711, first main synchronous pulley; 712, second main synchronous pulley; 720, driven synchronous pulley; 721, first driven synchronous pulley; 722, second driven synchronous pulley. Detailed Implementation

[0022] To make the objectives, technical solutions and advantages of this utility model clearer, the utility model will be described in further detail below with reference to the accompanying drawings.

[0023] Example 1:

[0024] See Figure 1 , Figure 1This is a schematic diagram of a transmission device in Embodiment 1. As shown in the figure, this device is used to drive an edge grinding machine, which can be applied to the processing of materials such as ceramics and glass. The transmission device includes: a drive motor 100, the power output end of which is connected to a drive shaft 110; a gearbox, including a gearbox body 210, a driven shaft 240, a first cavity 220, and a second cavity 230, the drive shaft 110 passing through the gearbox body 210 and the first cavity 220 in sequence and connected to the main synchronous pulley 710 of the edge grinding machine; one end of the driven shaft 240 is located inside the gearbox body 210, and the other end of the driven shaft 240 passes through the second cavity 230 and is connected to the driven synchronous pulley 720 of the edge grinding machine; and first bushings 310, each sleeved on the outer peripheral wall of the drive shaft 110 and the driven shaft 240, with the first ends of the two first bushings 310... The first bushing 310, which is sleeved on the drive shaft 110, is connected to the gear set in the gearbox body 210. The second end of the first bushing 310 is connected to the main synchronous pulley 710, and the second end of the first bushing 310, which is sleeved on the driven shaft 240, is connected to the driven synchronous pulley 720. The first bearing assembly is provided in the first cavity 220 and the second cavity 230 respectively. Each first bearing assembly includes at least two first bearings 410 and at least one second bearing 420. The inner rings of the first bearings 410 and the second bearings 420 are respectively connected to the first bushing 310 located in the same cavity. The positioning assembly is sleeved on the first bushing 310 and is used to axially position the first bushing 310. By fitting two types of bearings onto the drive shaft 110 and the driven shaft 240, the load force on the drive shaft 110 and the driven shaft 240 can be distributed, which can significantly improve the durability of the transmission device. By setting a positioning component to axially position the drive shaft 110 and the driven shaft 240, the sway during transmission is reduced, thereby reducing the wear of the bearings.

[0025] Specifically, the first cavity 220 and the second cavity 230 are arranged side by side and are located on the same side of the gearbox body 210. The drive shaft 110 and the driven shaft 240 are arranged in parallel. The first cavity 220 is connected to the main drive part of the gearbox body 210. The drive shaft 110 passes through the gearbox body 210 and the first cavity 220 in sequence and is connected to the main synchronous pulley 710 of the edge grinding machine. A first bushing 310 is sleeved on the drive shaft 110. One end of the first bushing 310 extends to connect with the main synchronous pulley 710, and the other end of the first bushing 310 is connected to the gear set (not shown in the figure) in the gearbox body 210. In the first cavity 220, the first bushing 310 is rotatably connected to the wall of the first cavity 220 through the first bearing 410 and the second bearing 420.

[0026] Specifically, the second cavity 230 is connected to the driven part of the gearbox, and the driven shaft 240 passes through the second cavity 230 and is connected to the driven synchronous pulley 720 of the edge grinding machine. A first bushing 310 is sleeved on the driven shaft 240. One end of the first bushing 310 extends to connect with the driven synchronous pulley 720, and the other end of the first bushing 310 is connected to the gear set (not shown in the figure) in the gearbox body 210. Inside the second cavity 230, the first bushing 310 is rotatably connected to the inner wall of the second cavity 230 through the first bearing 410 and the second bearing 420.

[0027] See Figure 1 and Figure 2 , Figure 2 This is a partial structural schematic diagram of a transmission device in this embodiment;

[0028] Furthermore, in this embodiment, both the first cavity 220 and the second cavity 230 are provided with a first mounting groove and a second mounting groove. For the first cavity 220, the first mounting groove is located at one of the inlet and outlet of the first cavity 220, and the second mounting groove is located at the other of the inlet and outlet of the first cavity 220; for the second cavity 230, the first mounting groove is located at one of the inlet and outlet of the second cavity 230, and the second mounting groove is located at the other of the inlet and outlet of the second cavity 230. Specifically, the first mounting groove located in the first cavity 220 includes a first a mounting groove 221, the second mounting groove located in the first cavity 220 includes a second a mounting groove 222, the first mounting groove located in the second cavity 230 includes a first b mounting groove, and the second mounting groove located in the second cavity 230 includes a second b mounting groove. That is, the first a mounting slot 221 and the second a mounting slot 222 are located inside the first cavity 220, and the first b mounting slot and the second b mounting slot are located inside the second cavity 230.

[0029] Specifically, the first cavity 220 is provided with a first a mounting groove 221 and a second a mounting groove 222. The first a mounting groove 221 is located on the side of the first cavity 220 near the drive motor 100, and a first bearing 410 and a second bearing 420 are fixedly installed in the first a mounting groove 221. The outer rings of the first bearing 410 and the second bearing 420 are fixedly connected to the groove wall of the first a mounting groove 221. The second a mounting groove 222 is located on the side of the first cavity 220 near the main synchronous pulley 710, and a first bearing 410 and a second bearing 420 are fixedly installed in the second a mounting groove 222. The outer rings of the first bearing 410 and the second bearing 420 are fixedly connected to the groove wall of the second a mounting groove 222.

[0030] Specifically, the second cavity 230 is provided with a first b mounting groove and a second b mounting groove. The first b mounting groove is located on the side of the second cavity 230 near the drive motor 100, and a first bearing 410 and a second bearing 420 are fixedly installed in the first b mounting groove. The outer rings of the first bearing 410 and the second bearing 420 are fixedly connected to the groove wall of the first b mounting groove. The second b mounting groove is located on the side of the second cavity 230 near the main synchronous pulley 710, and a first bearing 410 and a second bearing 420 are fixedly installed in the second b mounting groove. The outer rings of the first bearing 410 and the second bearing 420 are fixedly connected to the groove wall of the second b mounting groove.

[0031] See Figure 2 Preferably, the first a mounting groove 221 is formed by the first groove wall 2211 and the side wall of the first cavity 220 near the drive motor 100. In the first a mounting groove 221, the bearing near the drive motor 100 abuts against the end cover 510 on the same side, and the bearing near the inside of the first cavity 220 abuts against the first groove wall 2211. The second a mounting groove 222 is formed by the second groove wall 2221 and the side wall of the first cavity 220 away from the drive motor 100. In the second a mounting groove 222, the bearing near the main synchronous pulley 710 abuts against the end cover on the same side, and the bearing near the inside of the first cavity 220 abuts against the second groove wall 2221.

[0032] Furthermore, the structures of the first b mounting slot and the second b mounting slot are the same as those of the first a mounting slot 221 and the second a mounting slot 222.

[0033] Preferably, a first bearing 410 and a second bearing 420 are provided in the first mounting groove and the second mounting groove of the first cavity and the second cavity, respectively; the bearings in each mounting groove are symmetrically arranged along the transverse center line of the first cavity 220 or the second cavity 230; wherein the second bearing 420 is located on the side closer to the side wall of the first cavity 220 or the second cavity 230; the first bearing 410 is located on the side closer to the center of the first cavity 220 or the second cavity 230; the symmetrical arrangement allows the first bearing 410 and the second bearing 420 to evenly distribute the load generated on the first bearing 410; and avoids excessive wear of one bearing.

[0034] Preferably, the first bearing 410 is a deep groove ball bearing and the second bearing 420 is a cylindrical roller bearing. The deep groove ball bearing is used to bear the radial force generated on the first bushing 310; the cylindrical roller bearing, while bearing the radial force, can also better bear the load force generated when the edge grinding machine clamps the brick blank through the synchronous belt and moves relative to the grinding wheel, thereby reducing the wear between the bearings.

[0035] In other embodiments, the first bearing 410 and the second bearing 420 are both deep groove ball bearings; or, the first bearing 410 and the second bearing 420 are both cylindrical roller bearings.

[0036] Furthermore, in this embodiment, the positioning component includes end caps 510. Two end caps 510 are fitted onto each first bushing 310, and the two end caps 510 are respectively disposed at the entrance and exit of the first cavity 220 or the second cavity 230. The circumferential outer wall of the end cap 510 abuts against the inner wall of the first cavity 220 or the second cavity 230. During installation, the end cap 510 is fitted onto the first bushing 310 and abuts against the second bearing 420 on the outer side of the first bearing 410. By setting the end caps 510, the drive shaft 110 and the driven shaft 240 are axially positioned, reducing the sway during transmission and thus reducing bearing wear. At the same time, placing the end caps 510 at the entrance and exit can prevent dust from entering the cavity, further improving service life.

[0037] Furthermore, in this embodiment, the outer peripheral wall of the first bushing 310 is provided with: a first bayonet for connecting the first bearing 410 and the second bearing 420, the first bayonet being a stepped portion formed on the outer peripheral wall of the first bushing 310 and axially limiting the first bearing 410 and the second bearing 420; a second bayonet for connecting the end cover 510; and a third bayonet for connecting the main synchronous pulley 710 or the driven synchronous pulley 720. By providing bayonets, the first bushing 310 is tightly fitted with each bushing, improving the stability of the transmission.

[0038] Furthermore, in this embodiment, the transmission device also includes a filling component; the filling component includes grease filling the gap between the first cavity 220 and the second cavity 230; while maintaining lubrication in the first cavity 220 or the second cavity 230, it improves the sealing performance of the cavity and further improves the service life of the bearing.

[0039] As can be seen from the above, by fitting two types of bearings onto the drive shaft 110 and the driven shaft 240, the load force on the drive shaft 110 and the driven shaft 240 can be distributed, which can significantly improve the durability of the transmission device; by setting a positioning component to axially position the drive shaft 110 and the driven shaft 240, the swaying during transmission is reduced, thereby reducing the wear of the bearings; by setting a filling component, while maintaining lubrication in the first cavity 220 or the second cavity 230, the sealing performance of the cavity is improved, further improving the service life of the bearings.

[0040] See Figure 3 , Figure 3 This is a schematic diagram of the transmission structure of a single-drive edge grinding machine in this embodiment;

[0041] In a second aspect, this utility model provides a single-drive edge grinding machine. The edge grinding machine is provided with a first main synchronous pulley 711, a second main synchronous pulley 712, a first driven synchronous pulley 721, and a second driven synchronous pulley 722 to be driven. The single-drive edge grinding machine includes: a support base 600, in which a third cavity 610 and a fourth cavity 620 are provided; in the first embodiment of this invention, the transmission shaft 110 of the transmission device passes through the first main synchronous pulley 711 and the second main synchronous pulley 712 in sequence and is connected to the third cavity 610; the driven shaft 240 of the transmission device passes through the first driven synchronous pulley 721 and the second driven synchronous pulley 722 in sequence and is connected to the fourth cavity 620.

[0042] Furthermore, in this embodiment, the single-drive edge grinding machine further includes: a second bushing 320, which is respectively sleeved on the outside of the drive shaft 110 and the driven shaft 240; one end of the second bushing 320 abuts against the side wall of the third cavity 610 or the fourth cavity 620, and the second end of the second bushing 320 is connected to the second main synchronous pulley 712 or the second driven synchronous pulley 722; a second bearing 420 assembly, which is respectively disposed in the third cavity 610 and the fourth cavity 620; each cavity is provided with at least two first bearings 410 and at least one second bearing 420, and the inner rings of the first bearings 410 and the second bearings 420 are respectively connected to the second bushing 320; a positioning assembly, which is sleeved on the second bushing 320 and is used to axially position the first bushing 310; and a filling assembly, which is disposed in the gap between the third cavity 610 and the fourth cavity 620.

[0043] Preferably, the positioning and filling components in the third cavity 610 and the fourth cavity 620 are the same as those in the first cavity 220 and the second cavity 230.

[0044] As an improvement to the above solution, both the third cavity 610 and the fourth cavity 620 are provided with: a third mounting groove, which is located on the side of the third cavity 610 or the fourth cavity 620 away from the second main synchronous pulley 712, and a first bearing 410 and / or a second bearing 420 are fixed in the third mounting groove; and a fourth mounting groove, which is located on the side of the third cavity 610 or the fourth cavity 620 close to the second main synchronous pulley 712, and a first bearing 410 and a second bearing 420 are fixed in the second mounting groove.

[0045] As can be seen from the above, in this utility model, the transmission device in the embodiment drives the single-drive edge grinding machine. Two types of bearings are sleeved on the transmission shaft 110 and the driven shaft 240 to distribute the load force on the transmission shaft 110 and the driven shaft 240, which can significantly improve the durability of the transmission device and thus improve the service life of the edge grinding machine.

[0046] See Figure 4 , Figure 4This is a schematic diagram of the transmission structure of a dual-drive edge grinding machine in this embodiment;

[0047] In a third aspect, this utility model provides a dual-drive edge grinding machine. The edge grinding machine is equipped with a first main synchronous pulley 711, a second main synchronous pulley 712, a first driven synchronous pulley 721, and a second driven synchronous pulley 722 to be driven. The dual-drive edge grinding machine includes two transmission devices, namely a first transmission device and a second transmission device. The transmission shaft 110 of the first transmission device is connected to the first main synchronous pulley 711, and the driven shaft 240 of the first transmission device is connected to the first driven synchronous pulley 721. The transmission shaft 110 of the second transmission device is connected to the second main synchronous pulley 712, and the driven shaft 240 of the second transmission device is connected to the second driven synchronous pulley 722.

[0048] As can be seen from the above, in this utility model, the transmission device in the embodiment drives the dual-drive edge grinding machine. Two types of bearings are sleeved on the transmission shaft 110 and the driven shaft 240 to distribute the load force on the transmission shaft 110 and the driven shaft 240, which can significantly improve the durability of the transmission device and thus improve the service life of the edge grinding machine.

[0049] Example 2:

[0050] This embodiment is the same as Embodiment 1 except for the following distinguishing features.

[0051] See Figure 5 , Figure 5 This is an exploded view of the structure of a transmission device in Embodiment 2. As shown in the figure, in this embodiment, only the first bearing 410 is provided in the first mounting groove of the first cavity 220 and the second cavity 230; the first bearing 410 and the second bearing 420 are provided in the second mounting groove of the first cavity 220 and the second cavity 230. By reducing one second bearing 420, the production cost of the transmission device is reduced, and the second bearing 420 bears the load force generated when the edge grinding machine clamps the brick blank through the synchronous belt and moves relative to the grinding wheel, thereby reducing the wear between the first bearing 410 and the first bushing 310.

[0052] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications are also considered to be within the protection scope of this utility model.

Claims

1. A transmission for an edging machine, characterized in that, The transmission device includes: A drive motor, wherein the power output end of the drive motor is connected to a transmission shaft; A gearbox includes a gearbox body, a driven shaft, a first cavity, and a second cavity. The drive shaft passes through the gearbox body and the first cavity in sequence and is connected to the main synchronous pulley of the edge grinding machine. One end of the driven shaft is located inside the gearbox body, and the other end of the driven shaft passes through the second cavity and is connected to the driven synchronous pulley of the edge grinding machine. The first bushing is provided on the outer peripheral wall of the drive shaft and the driven shaft respectively. The first ends of the two first bushings are respectively connected to the gear set in the gearbox body. The second end of the first bushing on the drive shaft is connected to the main synchronous pulley. The second end of the first bushing on the driven shaft is connected to the driven synchronous pulley. A first bearing assembly is provided in the first cavity and the second cavity respectively; each first bearing assembly includes at least two first bearings and at least one second bearing, and the inner rings of the first bearings and the second bearings are respectively connected to the first bushing located in the same cavity. A positioning component is fitted onto the first bushing and is used to axially position the first bushing.

2. The transmission of claim 1, wherein Both the first cavity and the second cavity are equipped with: A first mounting slot is provided on the side of the first cavity or the second cavity near the drive motor, and a first bearing and / or a second bearing are fixed in the first mounting slot; The second mounting groove is located on the side of the first cavity or the second cavity near the main synchronous pulley, and the first bearing and the second bearing are fixed in the second mounting groove.

3. The transmission of claim 1, wherein The first bearing is a deep groove ball bearing, and the second bearing is a cylindrical roller bearing; or, both the first bearing and the second bearing are deep groove ball bearings; or, both the first bearing and the second bearing are cylindrical roller bearings.

4. The transmission of claim 1, wherein The positioning component includes end caps, with two end caps fitted on each of the first bushings. The two end caps are respectively located at the entrance and exit of the first cavity or the second cavity; the outer wall of the end cap circumferentially abuts against the inner wall of the first cavity or the second cavity.

5. The transmission of claim 4, wherein The first bushing is provided with: The first bayonet is used to connect the first bearing and the second bearing; The second bayonet is used to connect the end cap; The third bayonet is used to connect the main synchronous pulley or the auxiliary synchronous pulley.

6. The transmission of claim 1, wherein The transmission device also includes a filling assembly; The filling component includes grease that fills the gap between the first cavity and the second cavity.

7. A single drive edger, said edger being provided with a first master pulley, a second master pulley, a first slave pulley and a second slave pulley to be driven, characterized in that The single-drive edge grinding machine includes: A support base, wherein the support base is provided with a third cavity and a fourth cavity; The transmission device according to any one of claims 1 to 6, wherein the transmission shaft of the transmission device passes through the first main synchronous pulley and the second main synchronous pulley in sequence and is connected to the third cavity; the driven shaft of the transmission device passes through the first driven synchronous pulley and the second driven synchronous pulley in sequence and is connected to the fourth cavity.

8. The single drive edger of claim 7 wherein, The single-drive edge grinding machine also includes: The second bushing is respectively sleeved on the outside of the drive shaft and the driven shaft; one end of the second bushing abuts against the side wall of the third cavity or the fourth cavity, and the second end of the second bushing is connected to the second main synchronous pulley or the second driven synchronous pulley; The second bearing assembly is respectively disposed in the third cavity and the fourth cavity; each cavity is provided with at least two first bearings and at least one second bearing, and the inner rings of the first bearings and the second bearings are respectively connected to the second bushing. A positioning component, sleeved on the second bushing, is used to axially position the first bushing. A filling component is disposed within the gap between the third cavity and the fourth cavity.

9. The single drive edger of claim 8 wherein, Both the third and fourth cavities are equipped with: The third mounting groove is located on the side of the third or fourth cavity away from the second main synchronous pulley, and the first bearing and / or the second bearing are fixed in the third mounting groove; The fourth mounting groove is located on the side of the third or fourth cavity near the second main synchronous pulley, and the second mounting groove contains a first bearing and a second bearing.

10. A double drive edger, said edger being provided with a first master pulley, a second master pulley, a first slave pulley and a second slave pulley to be driven, characterized in that The dual-drive edge grinding machine includes: Two transmission devices as described in any one of claims 1 to 6, wherein the two transmission devices include a first transmission device and a second transmission device, wherein the drive shaft of the first transmission device is connected to the first main synchronous pulley, and the driven shaft of the first transmission device is connected to the first secondary synchronous pulley; the drive shaft of the second transmission device is connected to the second main synchronous pulley, and the driven shaft of the second transmission device is connected to the second secondary synchronous pulley.

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