Engine camshaft timing adjustment tool

Abstract

The utility model discloses an engine camshaft timing adjustment tool, which belongs to the technical field of camshaft disassembly and installation, including a mounting plate, a rack mechanism is installed on the mounting plate, the rack mechanism is connected with a handle mechanism, a bow-tie tool and a positioning mechanism; the rack mechanism includes a mounting block, an adjustment block, a fixing bolt, a gear one, a shaft guide sleeve, an adjustment block and a rack, a plurality of adjustment blocks are fixedly connected at equal intervals at the upper end of the mounting plate, an adjustment block is fixedly connected at the lower end of the adjustment block, a mounting block is fixedly connected at the lower end of the adjustment block, a pair of fixing bolts are slidably connected in the adjustment block, a rack is threadedly connected at the lower end of the fixing bolt, and the lower end of the rack is meshed with gear one. Through the above method, the two gears on the engine are prevented from moving left and right by limiting gear one, the position accuracy is improved, and the seat deviation is avoided to prevent the device installation accuracy from not meeting the standard, thereby increasing the wear of the device during operation.

Description

Technical Field

[0001] The utility model relates to the technical field of camshaft disassembly and installation, in particular to a timing adjustment tool for an engine camshaft. Background Art

[0002] The engine camshaft timing adjustment tool uses a bow tie tool to control the precise position of the camshaft timing. The camshaft timing tool is a critical component in the engine assembly line. In the prior art, the camshaft tool often has many problems. It has special requirements for design, is prone to errors, and the errors are not sure to be within the allowable range.

[0003] For example, Chinese utility model patent CN220622624U discloses an engine timing chain locking device, in which each camshaft sprocket is fixed to the camshaft by a bolt, and the camshaft sprocket is located in a cavity formed by a gear chamber, a flywheel housing and a flywheel.

[0004] However, it still has the following disadvantages: the device may not be firmly clamped during installation, which may cause the gear to move left and right during installation, resulting in the installed gear accuracy not meeting the standard.

[0005] Based on this, the utility model designs an engine camshaft timing adjustment tool to solve the above problems. Utility Model Content

[0006] In view of the above-mentioned shortcomings of the prior art, the utility model provides an engine camshaft timing adjustment tool.

[0007] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0008] An engine camshaft timing adjustment tool comprises a mounting plate, a rack mechanism is mounted on the mounting plate, and the rack mechanism is connected with a handle mechanism, a bow-tie tool and a positioning mechanism;

[0009] The rack mechanism comprises a mounting block, an adjusting block, a fixing bolt, a gear one, a shaft guide sleeve, an adjusting block and a rack, a plurality of adjusting blocks are fixedly connected at equal intervals on the upper end of the mounting plate, an adjusting block is fixedly connected at the lower end of the adjusting block, a mounting block is fixedly connected at the lower end of the adjusting block, a pair of fixing bolts are slidably connected in the adjusting block, a rack is threadedly connected at the lower end of the fixing bolt, and the lower end of the rack is meshed with the gear one;

[0010] A handle mechanism is installed on the mounting plate, and the handle mechanism is connected to gear one;

[0011] The mounting plate is provided with a positioning mechanism, a handle mechanism and an adjusting block;

[0012] A bow-tie tooling is installed on the installation plate, and the bow-tie tooling is connected with gear one.

[0013] Furthermore, the handle mechanism includes a spacer, a rotating shaft, a locking plate, a fixed plate, a handle seat, a movable block, a fixed seat, a handle rod, a connecting rod, a pin shaft, a fixing pin and a mounting block. The left and right ends of the mounting plate are rotatably connected with the rotating shaft, the right end rotating shaft passes through the mounting plate and is slidably connected with a gear, the rear end of the mounting plate is fixedly connected to a pair of fixing plates, the rear end outer wall of the rotating shaft is rotatably connected to the spacer and the mounting block, the rear end of the rotating shaft is fixedly connected to the handle seat, the handle seat is rotatably connected with a connecting rod, the outer wall of the connecting rod is fixedly connected to the fixed seat, the lower end of the fixed seat is fixedly connected to the handle rod, the left and right sides of the upper end of the fixed seat are fixedly connected to the fixing pins, the outer wall of the fixing pin is fixedly connected to the movable block, the lower end of the movable block is fixedly connected to the pin shaft, the outer wall of the pin shaft is fixedly connected to the locking plate, and the front end inner wall of the handle seat is slidably connected to the locking plate and the pin shaft.

[0014] Furthermore, the rotating shaft 1 is connected to a positioning mechanism.

[0015] Furthermore, the positioning mechanism includes a positioning device and a pressing device, the handle mechanism is connected to the positioning device, and the positioning device is connected to the pressing device.

[0016] Furthermore, the clamping device is connected to a rack mechanism.

[0017] Furthermore, the positioning device includes a positioning wheel, a positioning plate, a gear block, a shaft sleeve, a fixed plate and a movable block. The left and right sides of the front end of the mounting plate are respectively fixedly connected to the fixed plates, the outer wall of the left end rotating shaft is slidably connected to the positioning wheel, the positioning wheel is connected to the clamping device, the gear 1 and the positioning wheel are fixedly connected to the shaft sleeve through the shaft guide sleeve, the front end of the rotating shaft is fixedly connected to the positioning plate, the outer wall of the positioning plate is fixedly connected to a pair of gear blocks, and the rear end of the positioning plate is fixedly connected to the movable block.

[0018] Furthermore, the clamping device includes a fixing bolt, a roller mounting seat, a roller and a fixing pin. The fixing bolt is slidably connected in the adjusting block, the lower end of the fixing bolt passes through the mounting block and is threadedly connected to the roller mounting seat, the left end of the roller mounting seat is rotatably connected to the fixing pin, the outer wall of the fixing pin is fixedly connected to the roller, and the lower end of the roller is in contact with the positioning wheel.

[0019] Furthermore, the bow tie tooling includes a bow tie, a second rotating shaft and a second gear. The mounting plate fixes the bow tie to the mounting plate by bolts. The lower end of the bow tie is rotatably connected to the second rotating shaft. The second rotating shaft passes through the second rotating shaft and is fixedly connected to the second gear. The second gear is meshed with the first gear.

[0020] Compared with the prior art, the utility model has the following beneficial effects:

[0021] 1. The utility model supports the mounting block 2 through the adjusting block of the rack mechanism, and supports the mounting block 2 through the adjusting block. In order to avoid slight deviation when the device is installed, the gear 1 is meshed with the rack. When the gear 1 needs to adjust the angle, the rack is driven to move by the rotation of the gear 1, and the fixing bolt 1 is driven to slide on the adjusting block by the movement of the rack. By limiting the gear 1, the two gears on the engine are prevented from moving left and right, thereby improving the position accuracy and avoiding the installation accuracy of the device not meeting the standard due to seat deviation, thereby increasing the wear of the device during operation.

[0022] 2. The utility model drives the fixed seat and the handle seat to rotate by pulling the handle rod of the handle mechanism, and drives the rotating shaft 1 and the gear 1 to rotate and adjust the angle of the gear installation by the rotation of the handle seat. When the adjustment is completed, the fixed seat and the connecting rod are driven to rotate on the handle seat by rotating the handle rod, and the fixed pin 1 is driven to move by the rotation of the fixed seat, and the movable block 1 is driven to rotate by the movement of the fixed pin 1, and the pin shaft and the locking plate are driven to move on the handle seat by the rotation of the movable locking plate, and the handle seat and the mounting block 1 are synchronously locked by the movable locking plate being snapped into the opening of the mounting block 1. The function of the spacer is to separate the mounting block 1 from the handle seat, and the synchronous locking of the handle seat and the mounting block 1 enables the mechanism to quickly find the correct installation position of the adjacent teeth of the two camshaft timing gears on the camshaft, and at the same time avoid the inability of the gear to be adjusted synchronously with the handle seat during subsequent adjustment. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0024] Figure 1 The utility model is a three-dimensional tool for adjusting the timing of the engine camshaft Figure 1 ;

[0025] Figure 2 It is a front view of an engine camshaft timing adjustment tool of the utility model;

[0026] Figure 3 The utility model is a three-dimensional tool for adjusting the timing of the engine camshaft Figure 2 ;

[0027] Figure 4 The utility model is a three-dimensional tool for adjusting the timing of the engine camshaft Figure 3 ;

[0028] Figure 5The utility model is a three-dimensional tool for adjusting the timing of the engine camshaft Figure 4 ;

[0029] Figure 6 The utility model is a three-dimensional tool for adjusting the timing of the engine camshaft Figure 5 ;

[0030] Figure 7 The utility model is a three-dimensional tool for adjusting the timing of the engine camshaft Figure 6 .

[0031] The numbers in the figure represent:

[0032] 1. Mounting plate; 2. Handle mechanism; 24. Spacer; 26. Rotating shaft 1; 32. Locking plate; 33. Fixed plate 1; 34. Handle seat; 35. Movable block 1; 39. Fixed seat; 43. Handle rod; 44. Connecting rod; 46. Pin shaft; 48. Fixed pin 1; 49. Mounting block 1; 5. Rack mechanism; 11. Adjustment block; 6. Mounting block 2; 13. Fixed bolt 1; 19. Gear 1; 21. Shaft Guide sleeve; 28, adjustment block; 51, rack; 3, bow tie tooling; 52, bow tie; 53, rotating shaft 2; 54, gear 2; 4, positioning mechanism; 411, positioning device; 412, clamping device; 7, positioning wheel; 17, positioning plate; 18, gear block; 20, bushing; 29, fixing plate 2; 47, movable block 2; 8, fixing bolt 2; 9, roller mounting seat; 10, roller; 12, fixing pin 2. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of 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.

[0034] The terms “left”, “right”, “front”, “back”, “up” and “down” mentioned in the following description are oriented in the viewing direction of the front view.

[0035] Embodiment 1

[0036] In some embodiments, please refer to the attached instructions. Figure 1-7 , an engine camshaft timing adjustment tool, comprising a mounting plate 1;

[0037] The mounting plate 1 is provided with a rack mechanism 5, which is connected to the handle mechanism 2, the bow-tie tooling 3 and the positioning mechanism 4;

[0038] The rack mechanism 5 includes a mounting block 26, an adjusting block 11, a fixing bolt 13, a gear 19, a shaft guide sleeve 21, an adjusting block 28 and a rack 51. A plurality of adjusting blocks 28 are fixedly connected at equal intervals on the upper end of the mounting plate 1. The lower end of the adjusting block 28 is fixedly connected to the adjusting block 11. The adjusting block 11 is connected to the positioning mechanism 4. The lower end of the adjusting block 11 is fixedly connected to the mounting block 26. A pair of fixing bolts 13 are slidably connected in the adjusting block 11. The lower end of the fixing bolt 13 is threadedly connected to the rack 51. The lower end of the rack 51 is meshed with the gear 19. The gear 19 is connected to the handle mechanism 2 and the bow-tie tooling 3.

[0039] In the embodiment of the utility model, when the device starts to be installed, the mounting block 26 is supported by the adjustment block 28 of the rack mechanism 5, and the mounting block 26 is supported by the adjustment block 11. In order to avoid slight deviation when the device is installed, the gear 19 is meshed with the rack 51. When the gear 19 needs to adjust the angle, the rack 51 is moved by the rotation of the gear 19, and the fixing bolt 13 is driven to slide on the adjustment block 11 by the movement of the rack 51. By limiting the gear 19, the two gears on the engine are prevented from moving left and right, thereby improving the position accuracy and avoiding the seat deviation from causing the device installation accuracy to be substandard, thereby increasing the wear of the device during operation.

[0040] The mounting plate 1 is provided with a handle mechanism 2, which is connected to a rack mechanism 5 and a positioning mechanism 4;

[0041] The handle mechanism 2 includes a spacer 24, a rotating shaft 26, a locking plate 32, a fixing plate 33, a handle seat 34, a movable block 35, a fixing seat 39, a handle rod 43, a connecting rod 44, a pin 46, a fixing pin 48 and a mounting block 49. The left and right ends of the mounting plate 1 are both rotatably connected with the rotating shaft 26. The right end rotating shaft 26 passes through the mounting plate 1 and is slidably connected with a gear 19. The rotating shaft 26 is connected to the positioning mechanism 4. The rear end of the mounting plate 1 is fixedly connected with a pair of fixing plates 33. The outer wall of the rear end of the rotating shaft 26 is rotatably connected with the spacer 24. and mounting block 149, the rear end of rotating shaft 126 is fixedly connected with handle seat 34, the inner part of handle seat 34 is rotatably connected with connecting rod 44, the outer wall of connecting rod 44 is fixedly connected with fixing seat 39, the lower end of fixing seat 39 is fixedly connected with handle rod 43, the upper end of fixing seat 39 is fixedly connected with fixing pin 148 on both sides, the outer wall of fixing pin 148 is fixedly connected with movable block 135, the lower end of movable block 135 is fixedly connected with pin shaft 46, the outer wall of pin shaft 46 is fixedly connected with locking plate 32, the inner wall of front end of handle seat 34 is slidably connected with locking plate 32 and pin shaft 46;

[0042] In the embodiment of the utility model, when the device starts to prepare the locking device, the handle rod 43 of the handle mechanism 2 is pulled to drive the fixed seat 39 and the handle seat 34 to rotate, and the rotation of the handle seat 34 drives the rotating shaft 26 and the gear 19 to rotate and adjust the angle of the gear installation. When the adjustment is completed, the handle rod 43 is rotated to drive the fixed seat 39 and the connecting rod 44 to rotate on the handle seat 34, and the rotation of the fixed seat 39 drives the fixed pin 48 to move, and the movement of the fixed pin 48 drives the movable block 35 to rotate, and the movable block 35 is rotated by the movable block 35. The rotation of the moving block 35 drives the pin shaft 46 and the locking plate 32 to move on the handle seat 34, and the moving locking plate 32 is inserted into the opening of the mounting block 49 to synchronously lock the handle seat 34 and the mounting block 49. The function of the spacer 24 is to separate the mounting block 49 from the handle seat 34. Through the synchronous locking of the handle seat 34 and the mounting block 49, the mechanism can quickly find the correct installation position of the adjacent teeth of the two camshaft timing gears on the camshaft, and at the same time avoid the inability of the gears to be adjusted synchronously with the handle seat 34 during subsequent adjustments.

[0043] The mounting plate 1 is provided with a positioning mechanism 4, which is connected to the handle mechanism 2 and the rack mechanism 5;

[0044] The positioning mechanism 4 includes a positioning device 411 and a clamping device 412, the handle mechanism 2 is connected to the positioning device 411, the positioning device 411 is connected to the clamping device 412, and the clamping device 412 is connected to the rack mechanism 5;

[0045] The positioning device 411 includes a positioning wheel 7, a positioning plate 17, a tooth block 18, a shaft sleeve 20, a fixed plate 29 and a movable block 47. The left and right sides of the front end of the mounting plate 1 are respectively fixedly connected to the fixed plate 29, the outer wall of the left end rotating shaft 26 is slidably connected to the positioning wheel 7, the positioning wheel 7 is connected to the clamping device 412, the gear 19 and the positioning wheel 7 are fixedly connected to the shaft sleeve 20 through the shaft guide sleeve 21, the front end of the rotating shaft 26 is fixedly connected to the positioning plate 17, the outer wall of the positioning plate 17 is fixedly connected to a pair of tooth blocks 18, and the rear end of the positioning plate 17 is fixedly connected to the movable block 47;

[0046] The clamping device 412 includes a fixing bolt 28, a roller mounting seat 9, a roller 10 and a fixing pin 212. The fixing bolt 28 is slidably connected in the adjusting block 11. The lower end of the fixing bolt 28 passes through the mounting block 26 and is threadedly connected to the roller mounting seat 9. The left end of the roller mounting seat 9 is rotatably connected to the fixing pin 212. The outer wall of the fixing pin 212 is fixedly connected to the roller 10. The lower end of the roller 10 is in contact with the positioning wheel 7.

[0047] In the embodiment of the utility model, when the device starts to be installed, the positioning wheel 7 is pressed against the fixed plate 29 by the shaft guide sleeve 21 of the positioning device 411 of the positioning mechanism 4, and the camshaft to be installed is installed on the positioning plate 17. The support of the movable block 47 prevents the camshaft from falling during installation, and the camshaft is clamped and fixed by the tooth block 18. At the same time, the roller mounting seat 9 of the clamping device 412 is pulled to drive the fixing bolt 8 to slide on the adjusting block 11, and the roller 10 on the fixing pin 12 is driven by the movement of the roller mounting seat 9 to press the positioning wheel 7. By fixing the camshaft, the installation of the camshaft is facilitated, and at the same time, the positioning wheel 7 is pressed by the roller 10 to prevent the positioning wheel 7 from offset when it rotates.

[0048] The mounting plate 1 is provided with a bow-tie tool 3, which is connected to a rack mechanism 5;

[0049] The bow tie tooling 3 includes a bow tie 52, a second rotating shaft 53 and a second gear 54. The mounting plate 1 fixes the bow tie 52 on the mounting plate 1 by bolts. The lower end of the bow tie 52 is rotatably connected to the second rotating shaft 53. The second rotating shaft 53 passes through the second rotating shaft 53 and is fixedly connected to the second gear 54. The second gear 54 is meshed and connected with the first gear 19.

[0050] In the embodiment of the utility model, when the device starts to be installed, the bow tie 52 of the bow tie tooling 3 is used to fix the rotating shaft 53, and the rotation of the rotating shaft 53 drives the rotation of the gear 2 54, and the handle mechanism 2 of the gear 2 54 drives the gear 1 19 to rotate. When the device needs to fine-tune the gear installation angle, a small adjustment can be achieved by rotating the gear 2 54, thereby improving the installation accuracy of the device.

[0051] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An engine camshaft timing adjustment tool, comprising a mounting plate (1), characterized in that: The mounting plate (1) is provided with a rack mechanism (5), and the rack mechanism (5) is connected to the handle mechanism (2), the bow-tie tooling (3) and the positioning mechanism (4); The rack mechanism (5) comprises a second mounting block (6), an adjusting block (11), a fixing bolt (13), a gear (19), a shaft guide sleeve (21), an adjusting block (28) and a rack (51); a plurality of adjusting blocks (28) are fixedly connected at equal intervals on the upper end of the mounting plate (1); the lower end of the adjusting block (28) is fixedly connected to the adjusting block (11); the lower end of the adjusting block (11) is fixedly connected to the second mounting block (6); a pair of fixing bolts (13) are slidably connected in the adjusting block (11); the lower end of the fixing bolts (13) is threadedly connected to the rack (51); and the lower end of the rack (51) is meshedly connected to the gear (19); A handle mechanism (2) is mounted on the mounting plate (1), and the handle mechanism (2) is connected to gear one (19); The mounting plate (1) is provided with a positioning mechanism (4), the positioning mechanism (4) being connected to a handle mechanism (2) and an adjustment block (11); A bow-tie tool (3) is installed on the installation plate (1), and the bow-tie tool (3) is connected to gear one (19).

2. The engine camshaft timing adjustment tool according to claim 1, characterized in that: The handle mechanism (2) comprises a spacer (24), a rotating shaft (26), a locking plate (32), a fixing plate (33), a handle seat (34), a movable block (35), a fixing seat (39), a handle rod (43), a connecting rod (44), a pin (46), a fixing pin (48) and a mounting block (49); the left and right ends of the mounting plate (1) are both rotatably connected to the rotating shaft (26); the right end rotating shaft (26) passes through the mounting plate (1) and is slidably connected to a gear (19); the rear end of the mounting plate (1) is fixedly connected to a pair of fixing plates (33); the rear end outer wall of the rotating shaft (26) is rotatably connected to the spacer (24) and the mounting block (1). (49), the rear end of the rotating shaft 1 (26) is fixedly connected with a handle seat (34), the handle seat (34) is rotatably connected with a connecting rod (44), the outer wall of the connecting rod (44) is fixedly connected with a fixed seat (39), the lower end of the fixed seat (39) is fixedly connected with a handle rod (43), the upper end of the fixed seat (39) is fixedly connected with a fixing pin 1 (48) on both left and right sides, the outer wall of the fixing pin 1 (48) is fixedly connected with a movable block 1 (35), the lower end of the movable block 1 (35) is fixedly connected with a pin shaft (46), the outer wall of the pin shaft (46) is fixedly connected with a locking plate (32), and the inner wall of the front end of the handle seat (34) is slidably connected with the locking plate (32) and the pin shaft (46).

3. The engine camshaft timing adjustment tool according to claim 2, characterized in that: The rotating shaft 1 (26) is connected to the positioning mechanism (4).

4. The engine camshaft timing adjustment tool according to claim 3, characterized in that: The positioning mechanism (4) comprises a positioning device (411) and a pressing device (412); the handle mechanism (2) is connected to the positioning device (411), and the positioning device (411) is connected to the pressing device (412).

5. The engine camshaft timing adjustment tool according to claim 4, characterized in that: The pressing device (412) is connected to the rack mechanism (5).

6. The engine camshaft timing adjustment tool according to claim 5, characterized in that: The positioning device (411) comprises a positioning wheel (7), a positioning plate (17), a tooth block (18), a shaft sleeve (20), a second fixed plate (29) and a second movable block (47); the left and right sides of the front end of the mounting plate (1) are respectively fixedly connected to the second fixed plate (29); the outer wall of the left end rotating shaft (26) is slidably connected to the positioning wheel (7); the positioning wheel (7) is connected to the clamping device (412); the gear (19) and the positioning wheel (7) are fixedly connected to the shaft sleeve (20) via a shaft guide sleeve (21); the front end of the rotating shaft (26) is fixedly connected to the positioning plate (17); the outer wall of the positioning plate (17) is fixedly connected to a pair of tooth blocks (18); and the rear end of the positioning plate (17) is fixedly connected to the second movable block (47).

7. The engine camshaft timing adjustment tool according to claim 6, characterized in that: The clamping device (412) comprises a second fixing bolt (8), a roller mounting seat (9), a roller (10) and a second fixing pin (12); the second fixing bolt (8) is slidably connected inside the adjusting block (11); the lower end of the second fixing bolt (8) passes through the second mounting block (6) and is threadedly connected to the roller mounting seat (9); the left end of the roller mounting seat (9) is rotatably connected to the second fixing pin (12); the outer wall of the second fixing pin (12) is fixedly connected to the roller (10); and the lower end of the roller (10) is in contact with the positioning wheel (7).

8. The engine camshaft timing adjustment tool according to claim 7, characterized in that: The bow tie tooling (3) comprises a bow tie (52), a second rotating shaft (53) and a second gear (54); the mounting plate (1) fixes the bow tie (52) on the mounting plate (1) by means of bolts; the lower end of the bow tie (52) is rotatably connected to the second rotating shaft (53); the second rotating shaft (53) passes through the second rotating shaft (53) and is fixedly connected to the second gear (54); the second gear (54) is meshedly connected to the first gear (19).

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