Combined powder metallurgy gear assembly

Abstract

The utility model discloses a combined powder metallurgy gear assembly. The combined powder metallurgy gear assembly comprises a combined gear, the combined gear comprises a first gear body and a second gear body, half-angle grooves are formed in the first gear body and the second gear body, and half-angle clamping blocks penetrate through the half-angle grooves in the first gear body and the second gear body; the half-angle clamping blocks are installed on the first shaft body and the second shaft body, square blocks are arranged in the half-angle clamping blocks, the half-angle clamping blocks are inserted into half-angle grooves in the first gear and the second gear, the half-angle clamping blocks are matched with the half-angle grooves, friction resistance exists, loosening or shaking caused by rotation of the first gear and the second gear is reduced, and the service life of the first gear and the second gear is prolonged. And through a fixing plate, a clamping bolt and a clamping groove, the half-angle clamping block is effectively prevented from moving, and therefore the rotation stability of the first gear and the second gear is further ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of combined powder metallurgy gear components, in particular to a combined gear. Background Art

[0002] Combined powder metallurgy gear assemblies are gears formed by powder metallurgy molding and firing, and through a gear transmission system composed of two or more different types of gears working together, they can achieve transmission requirements of different speeds, torques and directions. Combined gears are usually used in industrial machinery, automotive transmission systems, ships and other equipment that require complex transmissions. Through the combination of different types of gears, efficient energy transmission and conversion can be achieved.

[0003] The prior art discloses a technical solution for a combined powder metallurgy gear assembly with high stability, wherein a central groove coinciding with the axis line is provided inside the shaft body, an insert rod is slidably connected inside the central groove, a slot is provided on the surface of the shaft body, a trapezoidal rib with one end extending out of the slot is slidably connected inside the slot, a connecting rod is hinged on one side of the trapezoidal rib in the slot, for connecting the insert rod and the trapezoidal rib so that the trapezoidal rib can be driven into the shaft body by moving the insert rod, trapezoidal grooves for inserting the trapezoidal rib are provided at the upper and lower ends of the inner sides of gear one and gear two, for clipping and cooperating with the trapezoidal rib.

[0004] In this solution, the trapezoidal ribs are squeezed into the slots by the resilience of the spring and the connecting rod to fix multiple gear connections. When the gears rotate for a long time or are disassembled and installed, the springs may become fatigued during the repeated compression and release of the force. Once the spring fails, the trapezoidal ribs and the connecting rods may shake in the gear slots, thereby affecting the normal operation of the gears.

[0005] Therefore, it is necessary to provide a combined powder metallurgy gear assembly to solve the above technical problems. Utility Model Content

[0006] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides a combined powder metallurgy gear assembly that can combine multiple gears together through a shaft, and use buckles to assist the gears to be quickly and conveniently fixed on the shaft, so that the gears can rotate and work stably.

[0007] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0008] A combined powder metallurgy gear assembly comprises: a combined gear, wherein the combined gear comprises a first gear and a second gear, wherein a half-angle groove is provided inside the first gear and the second gear, and a half-angle block is penetrated through the internal half-angle groove of the first gear and the second gear, and the half-angle block is installed on the first shaft body and the second shaft body, and a square is provided inside the half-angle block, and a slot is provided inside the square block, and a fixing plate is provided at one end of the half-angle block, and a fixing column is fixedly installed inside the fixing plate, and a pressing plate is provided at one end of the fixing column, and a guide column is provided at the lower end of the pressing plate and penetrates inside the fixing column, and the guide column moves inside the fixing column, and a spring is provided on the outer side of the guide column, and one end of the spring is connected to a protrusion at one end of the guide column, and the spring penetrates inside the fixing column, and a movable column is provided inside the guide column, and bolts are connected to both sides of the movable column, and a base is provided at the lower end of the movable bolt.

[0009] Preferably, a gear sleeve wear-resistant plate is fixedly mounted on the outer side of the first gear and the second gear, and a half-angle slot is provided on the gear sleeve wear-resistant plate.

[0010] Preferably, a through hole is formed on one end side of the first gear and the second gear, and the first gear and the second gear are connected and fixed to the gear sleeve wear-resistant plate through a fixing bolt.

[0011] Preferably, a movable groove is provided inside the first shaft body and the second shaft body, a movable bar is provided inside the movable groove, a through hole groove is provided inside the first shaft body and the second shaft body, the first shaft body and the second shaft body are connected and fixed with the movable bar by hexagon socket bolts passing through the through hole groove, and the movable bar is installed on the first gear and the second gear.

[0012] Preferably, a half-angle clamping block is fixedly mounted on one end of the moving bar, and the half-angle clamping block and the moving bar are metal material frame structures.

[0013] Preferably, a connecting ring is fixedly mounted on one end of the first shaft, a threaded groove is provided inside the connecting ring, and a second shaft is mounted on one end of the connecting ring.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] (1) The utility model utilizes the half-angle block and the fixing plate, the bolt and the slot, the guide column and the spring on the first shaft body and the second shaft body, and inserts the half-angle block into the half-angle slot inside the first gear and the second gear. The half-angle block and the half-angle slot are matched and have friction resistance, thereby reducing the looseness or shaking of the first gear and the second gear during rotation, and at the same time ensuring that the transmission between the first shaft body and the second shaft body will not loosen due to the shaking of the half-angle block in the half-angle slot, thereby ensuring the stable operation of the gears. The fixing plate, the bolt and the slot can effectively prevent the half-angle block from moving, thereby further ensuring the rotation stability of the first gear and the second gear, helping the installer to conveniently assemble the gears for installation and disassembly, and shortening the maintenance or replacement and disassembly installation time.

[0016] (2) The utility model uses the wear-resistant plate of the gear sleeve to effectively reduce the wear between the gears, reduce the friction loss between the gears, extend the service life of the gears, and avoid waste of resources due to high replacement and maintenance costs of worn gears.

[0017] (3) The utility model utilizes a movable bar and a movable groove, a first shaft body and a second shaft body. By adjusting the position of the movable bar, the relative position of the first gear and the second gear can be changed, thereby adjusting the transmission. By changing the spacing between the gears, the meshing point of the gears can be changed, thereby changing the transmission. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic diagram of the structure of a combined powder metallurgy gear assembly provided by the utility model;

[0019] Figure 2 A schematic diagram of the structure of the first shaft and the second shaft of the combined powder metallurgy gear assembly provided by the utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the auxiliary buckle assembly of the combined powder metallurgy gear assembly provided by the utility model;

[0021] Figure 4 A cross-sectional view of a half-angle clamp block and an auxiliary buckle assembly of a combined powder metallurgy gear assembly provided by the utility model;

[0022] Figure 5 A schematic diagram of the connecting ring and shaft gear structure of the combined powder metallurgy gear assembly provided by the utility model;

[0023] Figure 6 A schematic diagram of the structure of the moving bar and the shaft body of the combined powder metallurgy gear assembly provided by the utility model;

[0024] Figure 7A schematic diagram of the structure of the gear sleeve wear-resistant sheet of the combined powder metallurgy gear assembly provided by the utility model;

[0025] Among them, the names corresponding to the figure numbers are: 100, combined gear; 101, first gear; 102, second gear; 103, first shaft; 104, connecting ring; 105, second shaft; 106, half-angle block; 107, through hole groove; 108, hexagon socket bolt; 109, gear sleeve wear plate; 110, fixing bolt; 111, threaded groove; 112, moving bar; 113, notch; 114, moving groove; 200, auxiliary buckle assembly; 201, fixing plate; 202, pressure plate; 203, fixing column; 204, guide column; 205, spring; 206, bolt; 207, base; 208, movable column; 209, block; 210, slot. DETAILED DESCRIPTION

[0026] The present invention is further described below in conjunction with the accompanying drawings and embodiments. The present invention includes but is not limited to the following embodiments.

[0027] First embodiment:

[0028] like Figure 1-4As shown, the combined powder metallurgy gear assembly provided by the utility model includes: the combined gear 100 includes a first gear 101 and a second gear 102, the first gear 101 and the second gear 102 have half-angle grooves formed inside, the first gear 101 and the second gear 102 have half-angle blocks 106 running through the half-angle grooves inside, the half-angle blocks 106 are made of metal material, the half-angle blocks 106 connect and fix the first shaft 103 and the second shaft 105 by welding, the inside of the half-angle blocks 106 connect and fix the block 209 by welding, the inside of the block 209 has a slot 210 formed inside, the bolt 206 is butt-jointed through the slot 210, and the bolt 206 is in the slot 210. 0, one end of the half-angle block 106 contacts the fixed plate 201, and the fixed plate 201 fixes the first gear 101 and the second gear 102 to the first shaft 103 and the second shaft 105 through the auxiliary bayonet assembly. The lower end of the pressure plate 202 is connected and fixed to the guide column 204 by welding, and passes through the interior of the fixed column 203. A through hole is provided inside the fixed column 203. The fixed column 203 is connected and fixed to the fixed plate 201 by welding, and the guide column 204 moves inside the fixed column 203. One end of the guide column 204 is connected and fixed to the pressure plate 202 by welding. A spring 205 is installed on the outside of the guide column 204, and one end of the spring 205 is connected to a convex block at one end of the guide column 204. The convex block is welded on On the outer side of the guide column 204, the spring 205 is moved downward by the guide column 204 moving protrusion to squeeze the clamping bolt 206 into the clamping slot 210, and the spring 205 runs through the inside of the fixed column 203. The movable column 208 is installed inside the guide column 204. The movable column 208 can move inside the guide column 204. The clamping bolts 206 are connected to both sides of the movable column 208. The lower end of the movable column 208 is connected and fixed to the base 207 by screws. In actual use, the half-angle clamping block 106 on the first shaft body 103 and the second shaft body 105 is inserted into the inner half-angle groove of the first gear 101 and the second gear 102. The half-angle clamping block 106 and the half-angle groove are consistent and have friction resistance, which can To prevent the half-angle block 106 from shaking in the half-angle groove, the fixing plate 201 and the fixing column 203 are connected to the half-angle block 106, and the fixing column 203 is inserted into the interior of the half-angle block 106. The installer presses the pressure plate 202 by hand, and the protrusion on the guide column 204 pushes the spring 205 to move inside the fixing column 203. The spring 205 moves the bolt 206 on the movable column 208 into the groove 210. Finally, the fixing plate 201 is fixed to the half-angle block 106, and the first gear 101, the second gear 102 and the shaft body rotate for a long time, which can prevent the half-angle block 106 from moving out of the half-angle groove inside the first gear 101 and the second gear 102.

[0029] In this embodiment, by utilizing the half-angle block 106 and the fixing plate 201, the bolt 206 and the slot 210, the guide column 204 and the spring 205 on the first shaft 103 and the second shaft 105, the half-angle block 106 is inserted into the half-angle groove inside the first gear 101 and the second gear 102. The half-angle block 106 and the half-angle groove are matched and have friction resistance, thereby reducing the looseness or shaking of the first gear 101 and the second gear 102 during rotation, and at the same time ensuring that the transmission between the first shaft 103 and the second shaft 105 will not loosen due to the shaking of the half-angle block 106 in the half-angle groove, thereby ensuring the stable operation of the gears. The fixing plate 201, the bolt 206 and the slot 210 can effectively prevent the half-angle block 106 from moving, thereby further ensuring the rotation stability of the first gear 101 and the second gear 102, helping the installer to conveniently assemble the gears for installation and disassembly, thereby shortening the maintenance or replacement and disassembly installation time.

[0030] Second embodiment:

[0031] like Figure 1 , Figure 5 , Figure 7 As shown, a sleeve wear plate 109 is installed on the outer side of the first gear 101 and the second gear 102. The sleeve wear plate 109 is made of high-strength and wear-resistant material. Common materials include cemented carbide, cast iron, carbon steel, etc. The material of the sleeve wear plate 109 usually has high hardness and wear resistance, which can effectively reduce the wear between gears and extend the service life of the gears. A half-angle slot is opened inside the sleeve wear plate 109, and the friction resistance of the half-angle block 106 is increased. A through hole is opened on one end side of the first gear 101 and the second gear 102, and the first gear 101 and the second gear 102 are connected and fixed to the sleeve wear plate 109 by a fixing bolt 110.

[0032] In this embodiment, the gear sleeve wear-resistant plate 109 is used to effectively reduce the wear between the gears, reduce the friction loss between the gears, extend the service life of the gears, and avoid wasting resources due to excessively high maintenance costs for replacement of worn gears.

[0033] Third embodiment:

[0034] like Figure 1-2 , Figure 6As shown, a moving groove 114 is provided inside the first shaft body 103 and the second shaft body 105, and a moving bar 112 passes through the moving groove 114. The moving bar 112 is made of metal material, and the moving bar 112 can move inside the moving groove 114. A through hole groove 107 is provided on the first shaft body 103 and the second shaft body 105. The first shaft body 103 and the second shaft body 105 are connected and fixed with the moving bar 112 by a hexagon socket bolt 108 passing through the through hole groove 107. The moving bar 112 is installed on the first gear 101 and the second gear 102, and the distance between the first gear 101 and the second gear 102 can be adjusted by the moving bar 112.

[0035] In this embodiment, by utilizing the moving bar 112 and the moving groove 114, the first shaft 103 and the second shaft 105, and by adjusting the position of the moving bar 112, the relative position of the first gear 101 and the second gear 102 can be changed, thereby adjusting the transmission, and by changing the spacing between the gears, the meshing point of the gears can be changed, thereby changing the transmission.

[0036] Fourth embodiment:

[0037] like Figure 2 , Figure 6 As shown, one end of the moving bar 112 is connected and fixed to the half-angle block 106 by welding, and the half-angle block 106 can be moved through the moving bar 112. The half-angle block 106 and the moving bar 112 are metal frame structures.

[0038] Fifth embodiment:

[0039] like Figure 1 , Figure 5 As shown, one end of the first shaft 103 is connected and fixed to the connecting ring 104 by screws, a threaded groove 111 is opened inside the connecting ring 104, one end of the connecting ring 104 is connected and fixed to the second shaft 105 by screws, and the first shaft 103 and the second shaft 105 are connected together through the connecting ring 104.

[0040] When in use, the half-angle block 106 on the first shaft body 103 and the second shaft body 105 is inserted into the inner half-angle groove of the first gear 101 and the second gear 102. The half-angle block 106 and the half-angle groove are matched and have friction resistance, which can prevent the half-angle block 106 from shaking in the half-angle groove to ensure firmness. By connecting the fixing plate 201 and the fixing column 203 to the half-angle block 106, the fixing column 203 will be inserted into the interior of the half-angle block 106. The installer can install the fixing plate 201 and the fixing column 203 to ensure firmness. By pressing the pressure plate 202 by hand, the protrusion on the guide column 204 pushes the spring 205 to move inside the fixed column 203, and the spring 205 moves the latch 206 on the movable column 208 into the slot 210, and finally the fixed plate 201 is fixed on the half-angle block 106. The first gear 101, the second gear 102 and the shaft rotate for a long time, which can prevent the half-angle block 106 from moving out of the half-angle slot inside the first gear 101 and the second gear 102.

[0041] The above embodiment is only one of the preferred implementation modes of the present utility model and should not be used to limit the protection scope of the present utility model. Any changes or modifications that are made to the main design concept and spirit of the present utility model without any substantive significance, as long as the technical problems solved are still consistent with the present utility model, should be included in the protection scope of the present utility model.

Claims

1. A combined powder metallurgy gear assembly, characterized in that: include: A combined gear (100), the combined gear (100) comprising a first gear (101) and a second gear (102), the first gear (101) and the second gear (102) having half-angle grooves therein, the half-angle grooves inside the first gear (101) and the second gear (102) having half-angle clamping blocks (106) running through them, the half-angle clamping blocks (106) being mounted on a first shaft (103) and a second shaft (105), the half-angle clamping blocks (106) having a square block (209) therein, the square block (209) having a clamping groove (210) therein, one end of the half-angle clamping blocks (106) having a fixing plate (201) therein, the fixing plate (201) having a fixing groove therein A fixed column (203) is fixedly installed, a pressure plate (202) is provided at one end of the fixed column (203), a guide column (204) is provided at the lower end of the pressure plate (202) and passes through the interior of the fixed column (203), and the guide column (204) moves inside the fixed column (203), a spring (205) is provided on the outer side of the guide column (204), one end of the spring (205) is connected to a protrusion at one end of the guide column (204), and the spring (205) passes through the interior of the fixed column (203), a movable column (208) is provided inside the guide column (204), bolts (206) are connected to both sides of the movable column (208), and a base (207) is provided at the lower end of the movable column (208).

2. The combined powder metallurgy gear assembly according to claim 1, characterized in that: A gear sleeve wear-resistant sheet (109) is fixedly mounted on the outer sides of the first gear (101) and the second gear (102), and a half-angle slot is provided on the gear sleeve wear-resistant sheet (109).

3. The combined powder metallurgy gear assembly according to claim 2, characterized in that: Through holes are provided on one end side of the first gear (101) and the second gear (102); the first gear (101) and the second gear (102) are connected and fixed to the gear sleeve wear-resistant plate (109) via a fixing bolt (110).

4. The combined powder metallurgy gear assembly according to claim 1, characterized in that: A moving groove (114) is provided inside the first shaft body (103) and the second shaft body (105), and a moving bar (112) is provided inside the moving groove (114). A through hole groove (107) is provided on the first shaft body (103) and the second shaft body (105). The first shaft body (103) and the second shaft body (105) are connected and fixed with the moving bar (112) by means of a hexagon socket bolt (108) passing through the through hole groove (107). The moving bar (112) is installed on the first gear (101) and the second gear (102).

5. The combined powder metallurgy gear assembly according to claim 4, characterized in that: A half-angle clamping block (106) is fixedly mounted on one end of the moving bar (112); the half-angle clamping block (106) and the moving bar (112) are metal frame structures.

6. The combined powder metallurgy gear assembly according to claim 4, characterized in that: A connecting ring (104) is fixedly mounted on one end of the first shaft (103), a thread groove (111) is provided inside the connecting ring (104), and a second shaft (105) is mounted on one end of the connecting ring (104).

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