Accessory drive belt tensioner

Abstract

The utility model belongs to the technical field of engines, and particularly relates to an accessory driving belt tensioner, which comprises a mounting seat, a limiting piece, a belt pulley, a quick connecting piece and an unlocking piece, the limiting piece is arranged in a cavity of the mounting seat in a matched manner, the quick connecting piece is arranged on the mounting seat in a matched and inserted manner, and the quick connecting piece is connected with the limiting piece in a matched manner. According to the accessory driving belt tensioner designed by the utility model, through the integral matching design, when the belt pulley is mounted on the mounting seat, bolts are not needed for connection and fixation, the belt pulley is more convenient to disassemble and assemble on the mounting seat, the later overhaul and maintenance use is improved, and through the matching connection design, the cost is reduced. By means of the belt pulley, the problems that bolts are loosened and fall off when the belt pulley rotates and vibrates due to a bolt connecting mode, stable rotation of the belt pulley is affected, and a belt is broken due to large jumping during transmission can be solved, and the connecting stability of the belt pulley on the tensioner is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of engines, in particular to an accessory drive belt tensioner. Background Art

[0002] In a typical internal combustion engine, the main drive belt system will experience tension fluctuations due to the influence of the camshaft and crankshaft torque signals. The belt tensioner is used to control the belt tension. When the existing accessory drive belt tensioner is in use, the pulley is generally fixed to the tensioning arm by bolts. This will cause inconvenience during the later maintenance, inspection and disassembly of the pulley, which increases the disassembly and assembly time. In addition, since the pulley is fixed with bolts, the bolts may become loose when the pulley rotates, affecting the stable operation and use of the belt tensioner. Utility Model Content

[0003] 1. Technical issues to be resolved

[0004] In view of the deficiencies of the prior art, the utility model provides an accessory drive belt tensioner, which solves the problems in the above background technology that the pulley of the accessory drive belt tensioner is inconvenient to disassemble and assemble and the pulley fixed by bolts may vibrate and loosen.

[0005] (II) Technical solution

[0006] In order to achieve the above-mentioned purpose, the utility model specifically adopts the following technical solutions:

[0007] The accessory drive belt tensioner comprises a mounting seat, a limit piece, a pulley, a quick connector and an unlocking piece. The limit piece is arranged inside the cavity of the mounting seat, and the mounting seat is provided with a quick connector for insertion. The quick connector is connected to the limit piece, and the quick connector is connected to the pulley. An unlocking piece is slidably inserted inside the quick connector, and the unlocking piece is provided for interference with the limit piece.

[0008] Furthermore, a through slot is provided on the mounting seat, a limiting block is symmetrically fixedly connected inside the through slot, and a convex ball is fixedly connected to the inner wall of the through slot above the limiting block.

[0009] Furthermore, the limiting member is composed of a plug-in column, a chassis, a slide groove and a first spring. The bottom of the plug-in column is fixedly connected to the chassis, the slide grooves are symmetrically arranged on the chassis, the chassis is slidably connected in the through groove, the slide groove is slidably connected to the limiting block, the bottom of the chassis is fixedly connected to the first spring, and the other end of the first spring is fixedly connected to the bottom of the through groove.

[0010] Furthermore, the central portion of the pulley is fixedly connected to the outer ring of the bearing.

[0011] Furthermore, the quick connector consists of a turntable, an insert rod, an L-shaped groove and a limit hole. The turntable is fixedly connected to one end of the insert rod, the insert rod is inserted in the inner ring of the bearing, the insert rod is symmetrically provided with L-shaped grooves, the insert rod is inserted in the through groove, the L-shaped groove is inserted in the convex ball, the insert rod is provided with a limit hole, and the limit hole is inserted in the plug column.

[0012] Furthermore, the unlocking member is composed of a connecting rod, a limit plate and a second spring. The connecting rod is inserted in the insertion rod, one end of the connecting rod is arranged to cooperate with the insertion column, the connecting rod is fixedly connected to the limit plate, the limit plate is slidably connected in the cavity of the insertion rod, the limit plate is fixedly connected to the second spring, the second spring is sleeved on the connecting rod, and the other end of the limit plate is in contact with the cavity of the insertion rod.

[0013] (III) Beneficial effects

[0014] Compared with the prior art, the utility model provides an accessory drive belt tensioner, which has the following beneficial effects:

[0015] The accessory driven belt tensioner designed by the utility model can, through the overall matching design, eliminate the need for bolts to connect and fix the pulley when it is installed on the mounting seat, and makes the disassembly and assembly of the pulley on the mounting seat more convenient, thereby improving the later inspection and maintenance use. Moreover, through the matching connection design, it can avoid the problem of the bolts loosening and falling off when the pulley rotates and vibrates due to the connection method using bolts, thereby affecting the stable rotation of the pulley and causing the belt to break due to large jumps during transmission, thereby improving the connection stability of the pulley on the tensioner. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the mounting seat of the utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the limiter of the utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the pulley and quick connector of the utility model;

[0020] Figure 5 This is a schematic diagram of the unlocking member structure of the utility model.

[0021] In the figure: 1. mounting seat; 101. through slot; 102. limiting block; 103. convex ball; 2. limiting member; 201. plug-in column; 202. chassis; 203. slide slot; 204. first spring; 3. pulley; 301. bearing; 4. quick connector; 401. rotary disk; 402. plug rod; 403. L-shaped slot; 404. limiting hole; 5. unlocking member; 501. connecting rod; 502. limiting disk; 503. second spring. 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] Example

[0024] like Figure 1-5As shown, an accessory drive belt tensioner proposed in an embodiment of the utility model comprises a mounting seat 1, a limiting member 2, a pulley 3, a quick connector 4 and an unlocking member 5. The accessory drive belt tensioner designed in this scheme can improve the convenience of disassembly and assembly of the pulley 3 on the tensioner, and is convenient for disassembly, assembly, maintenance and use. In addition, through design, it can avoid that the pulley 3 is affected by vibration during rotation due to the connection method of bolt fixing, which causes the bolts used to fix the pulley 3 to loosen, causing the pulley 3 to loosen. The cavity of the mounting seat 1 is provided with a limiting member 2, and the mounting seat 1 is provided with a quick connector 4 for insertion. The quick connector 4 is provided with a limiting member 2 for insertion, and the quick connector 4 is connected with the pulley 3. The quick connector 4 is provided with an unlocking member 5 which is slidably inserted inside. The unlocking member 5 is provided in a cooperative and abutting arrangement with the limiting member 2. When the pulley 3 is installed, the plug rod 402 is inserted into the inner part of the bearing 301, and then the plug rod 402 is inserted into the through groove 101. At this time, the L-shaped groove 403 is connected with the convex ball 103, and the limiting hole 404 at one end of the plug rod 402 is connected with the plug column 201. At this time, the rotation of the plug rod 402 can be limited. Then, by pushing the connecting rod 501, the connecting rod 501 is abutted against the plug column 201. At this time, the second spring 503 will shrink under the movement and extrusion of the limiting disk 502, and maintain the rebound force. The squeezing of 201 can cause the internal through slot 101 on the plug-in column 201 box mounting seat 1 to shrink, and can cause the first spring 204 to squeeze and shrink, and maintain the rebound force. At this time, the plug-in column 201 is disengaged from the plug-in with the limiting hole 404, and then the plug rod 402 is rotated by the buckling dial 401 to make the convex ball 103 slide to one end of the L-shaped slot 403, and then the connecting rod 501 is released, and the second spring 503 rebounds and resets. At this time, the plug-in column 201 is reset by the rebound of the first spring 204, and is slidably connected to the limiting block 102 through the sliding slot 203 set on the chassis 202, which can limit the vertical sliding of the limiting member 2. After the limiting member 2 is reset, the plug-in column 201 will be plugged in In the limiting hole 404, the rotation of the insertion rod 402 can be limited. Through the connection of the convex ball 103 to the L-shaped groove 403, the insertion rod 402 can be plugged into the mounting seat 1 and cannot be pulled out, which meets the requirements of convenient installation and use. The connection can make the pulley 3 installed on the mounting seat 1, and the mounting seat 1 is fixedly connected to the tensioning arm of the tensioner, which meets the requirements of convenient fixed connection and use. When disassembling, the reverse steps of installation can be performed, which meets the requirements of convenient disassembly and assembly, and can avoid the problem of the pulley 3 falling off due to loosening of the bolts due to vibration caused by the use of bolts to fix the pulley 3. The contents not described in detail in this specification belong to the existing technology known to professional and technical personnel in this field.

[0025] like Figure 2As shown, in some embodiments, a through groove 101 is opened on the mounting seat 1, and a limiting block 102 is symmetrically fixedly connected inside the through groove 101, and a convex ball 103 is fixedly connected to the inner wall of the through groove 101 above the limiting block 102. The design of the mounting seat 1 meets the installation and use of the pulley 3 and improves the convenience of disassembly and assembly.

[0026] like Figure 3 As shown, in some embodiments, the limit member 2 is composed of a plug-in column 201, a chassis 202, a slide groove 203 and a first spring 204. The bottom of the plug-in column 201 is fixedly connected to the chassis 202, and the slide groove 203 is symmetrically arranged on the chassis 202. The chassis 202 is slidably connected in the through groove 101, and the slide groove 203 is slidably connected to the limit block 102. The bottom of the chassis 202 is fixedly connected to the first spring 204, and the other end of the first spring 204 is fixedly connected to the bottom of the through groove 101. The design of the limit member 2 meets the use requirements and can be used to limit the quick connector 4.

[0027] like Figure 4 As shown, in some embodiments, the center portion of the pulley 3 is fixedly connected to the outer ring of the bearing 301, the pulley 3 satisfies the tension transmission of the belt, and the bearing 301 can ensure the normal rotation of the pulley 3.

[0028] like Figure 4 As shown, in some embodiments, the quick connector 4 is composed of a turntable 401, an insert rod 402, an L-shaped groove 403 and a limiting hole 404. The turntable 401 is fixedly connected to one end of the insert rod 402, and the insert rod 402 is inserted in the inner ring of the bearing 301. The insert rod 402 is symmetrically provided with L-shaped grooves 403, the insert rod 402 is inserted in cooperation with the through groove 101, the L-shaped groove 403 is inserted in cooperation with the convex ball 103, and a limiting hole 404 is provided on the insert rod 402, and the limiting hole 404 is inserted in cooperation with the plug-in column 201. The design of the quick connector 4 meets the use requirements and can enable the pulley 3 to be conveniently connected to the mounting base 1.

[0029] like Figure 5 As shown, in some embodiments, the unlocking member 5 is composed of a connecting rod 501, a limiting disk 502 and a second spring 503. The connecting rod 501 is inserted into the insertion rod 402, and one end of the connecting rod 501 is set to cooperate with the insertion column 201. The limiting disk 502 is fixedly connected to the connecting rod 501, and the limiting disk 502 is slidably connected in the cavity of the insertion rod 402. The limiting disk 502 is fixedly connected to the second spring 503, and the second spring 503 is sleeved on the connecting rod 501. The other end of the limiting disk 502 is in abutment with the cavity of the insertion rod 402. The unlocking member 5 can control the contraction of the limiting member 2, so that the quick connector 4 and the mounting seat 1 can be conveniently disassembled and assembled.

[0030] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. An accessory drive belt tensioner, comprising a mounting seat (1), a stopper (2), a pulley (3), a quick-connector (4) and an unlocking member (5), characterized in that: A limiting member (2) is provided in cooperation with the cavity of the mounting seat (1), a quick-connect member (4) is provided on the mounting seat (1) for plugging and cooperating, the quick-connect member (4) and the limiting member (2) are provided for plugging and cooperating connection, the quick-connect member (4) and the pulley (3) are provided for plugging and cooperating connection, an unlocking member (5) is provided inside the quick-connect member (4) for sliding connection, and the unlocking member (5) and the limiting member (2) are provided for plugging and cooperating contact.

2. The accessory drive belt tensioner according to claim 1, characterized in that: The mounting seat (1) is provided with a through slot (101), a limiting block (102) is symmetrically fixedly connected inside the through slot (101), and a convex ball (103) is fixedly connected to the inner wall of the through slot (101) above the limiting block (102).

3. The accessory drive belt tensioner according to claim 1, characterized in that: The limiting member (2) is composed of a plug-in column (201), a chassis (202), a slide groove (203) and a first spring (204); the bottom of the plug-in column (201) is fixedly connected to the chassis (202); the slide grooves (203) are symmetrically arranged on the chassis (202); the chassis (202) is slidably connected in the through groove (101); the slide groove (203) is slidably connected to the limiting block (102); the bottom of the chassis (202) is fixedly connected to the first spring (204); the other end of the first spring (204) is fixedly connected to the bottom of the through groove (101).

4. The accessory drive belt tensioner according to claim 1, characterized in that: The central part of the pulley (3) is fixedly connected to the outer ring of the bearing (301).

5. The accessory drive belt tensioner according to claim 1, characterized in that: The quick connector (4) is composed of a rotary disk (401), an insert rod (402), an L-shaped groove (403) and a limiting hole (404); the rotary disk (401) is fixedly connected to one end of the insert rod (402); the insert rod (402) is plugged into the inner ring of the bearing (301); the insert rod (402) is symmetrically provided with L-shaped grooves (403); the insert rod (402) is plugged into the through groove (101); the L-shaped groove (403) is plugged into the convex ball (103); the insert rod (402) is provided with a limiting hole (404); the limiting hole (404) is plugged into the plug column (201).

6. The accessory drive belt tensioner according to claim 1, characterized in that: The unlocking member (5) is composed of a connecting rod (501), a limiting plate (502) and a second spring (503); the connecting rod (501) is inserted into the insertion rod (402); one end of the connecting rod (501) is arranged to cooperate with the insertion column (201); the limiting plate (502) is fixedly connected to the connecting rod (501); the limiting plate (502) is slidably connected in the cavity of the insertion rod (402); the limiting plate (502) is fixedly connected to the second spring (503); the second spring (503) is sleeved on the connecting rod (501); and the other end of the limiting plate (502) is in contact with the cavity of the insertion rod (402).

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