Engine camshaft gear structure

Abstract

The utility model discloses an engine camshaft gear structure, and relates to the technical field of engines. The device comprises a cam shaft and a cam shaft gear, a mounting seat and a mounting baffle are fixedly mounted on the surface of the cam shaft, the mounting baffle is fixedly mounted by clinging to the surface of the mounting seat, a telescopic assembly and a pulling mechanism are arranged in the mounting seat, a connecting rod is hinged between the telescopic assembly and the pulling mechanism, and a friction gasket is fixedly mounted on the top surface of the telescopic assembly. The multiple friction gaskets are arranged, and a fixing mechanism is arranged on the surface of the cam shaft gear. The angle of the connecting rod is driven to deflect by pulling the pulling mechanism, then the telescopic assembly hinged to the connecting rod is driven to retract towards the interior of the installation base, and enough space is provided for installation of the cam shaft gear and the installation base; the telescopic assembly is driven by the elastic acting force in the telescopic assembly to move from the interior of the mounting base to the exterior.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of engine, concretely relates to a camshaft gear structure of engine. BACKGROUND

[0002] The camshaft is an important component of the piston engine, mainly bears the periodic impact load, the camshaft gear is the important component in the engine transmission system, the main function of the camshaft gear is control valve opening and closing action, thereby adjust the engine intake and exhaust process, through the coordination of work with the camshaft, the camshaft gear can ensure that the engine can inhale enough air and fuel mixture in each working cycle, and exhaust waste gas at the best time, and this function is crucial to improve the combustion efficiency and power output of the engine.

[0003] The existing engine camshaft gear is pressed to the camshaft through the pressing equipment, so that the gear and the camshaft can be closely matched, under the action of long-term mechanical friction, load change and environmental factors, the camshaft gear will inevitably produce wear, crack and even breakage and other damage conditions, when the camshaft gear needs to be disassembled and repaired or replaced, it is usually difficult to separate it directly by hand, the maintenance personnel often need to use external tools, through knocking, prying and other measures to exert enough force, so as to take down the damaged gear from the camshaft, the operation process is relatively cumbersome and inconvenient, which increases the workload of the maintenance personnel and is not conducive to the improvement of the maintenance work efficiency.

[0004] Therefore, the utility model provides a camshaft gear structure of engine. UTILITY MODEL CONTENTS

[0005] The utility model discloses a camshaft gear structure of engine.

[0006] The utility model discloses a camshaft gear structure of engine.

[0007] A camshaft gear structure of engine, including camshaft and camshaft gear, the camshaft surface fixed mounting has mounting seat and installation baffle, the installation baffle is fixedly installed closely mounting seat surface, the mounting seat inside is equipped with telescopic subassembly and pull mechanism, the telescopic subassembly and pull mechanism between hinged have connecting rod, the telescopic subassembly top surface fixedly installed have friction gasket, the quantity of friction gasket is several, the camshaft gear surface is equipped with fixed mechanism.

[0008] Further, the telescopic assembly comprises a fixed rod fixedly installed on the inner wall surface of the mounting seat, a mounting rod fixedly installed on the surface of the fixed rod, a plurality of mounting rods distributed as polar axes with the fixed rod as the axis, a fixed plate fixedly installed on the surface of the mounting rod, a sliding plate slidingly installed on the surface of the mounting rod, a spring fixedly connected between the opposite surfaces of the fixed plate and the sliding plate, the spring arranged outside the mounting rod, a sliding rod fixedly installed on the surface of the side away from the spring of the sliding plate, the sliding rod penetrating through the surface of the mounting seat and slidingly arranged relative to the mounting seat, and the friction pad fixedly installed on the surface of the sliding rod.

[0009] Further, the pulling mechanism comprises a sliding sleeve, a sliding groove is formed on the surface of the sliding sleeve, a limiting plate is fixedly installed on the front surface of the fixed rod, the limiting plate is slidingly installed on the inner wall surface of the sliding groove, and a pulling block is fixedly installed on the front surface of the sliding sleeve and slidingly arranged relative to the surface of the mounting seat.

[0010] Further, the connecting rod is hingedly connected to the surface of the sliding sleeve, and one end of the connecting rod away from the sliding sleeve is hingedly connected to the surface of the sliding plate.

[0011] Further, a groove is formed on the surface of the pulling block.

[0012] Further, the fixing mechanism comprises a fixing hole formed on the surface of the mounting baffle, a positioning hole is formed on the surface of the camshaft gear, the number and specifications of the fixing hole and the positioning hole are matched, and the inner wall surfaces of the fixing hole and the positioning hole are screwedly connected with the bolts.

[0013] The telescopic assembly is hingedly connected to the connecting rod, the telescopic assembly is retracted into the mounting seat, enough space is provided for the installation of the camshaft gear and the mounting seat, the telescopic assembly moves from the inside of the mounting seat to the outside under the driving of the elastic force in the telescopic assembly, the friction pad on the surface of the telescopic assembly is in close contact with the surface of the camshaft gear and generates extrusion force on the camshaft gear, the camshaft gear can be preliminarily fixed, the camshaft gear can be further fixed on the surface of the mounting baffle through the fixing mechanism, the telescopic assembly and the friction pad can be separated from the camshaft gear by removing the fixing mechanism from the surface of the camshaft gear and pulling the pulling mechanism, and then the camshaft gear can be disassembled and replaced, the installation and disassembly of the camshaft gear become more convenient, the workload of the staff is reduced, and the maintenance efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0014] Fig. 1Is the three-dimensional structure schematic diagram of the utility model;

[0015] Fig. 2 Is the utility model mounting seat side sectional view;

[0016] Fig. 3 Is the utility model pulling mechanism front view;

[0017] Reference numerals: 1, camshaft;2, camshaft gear;3, mounting seat;4, mounting baffle;5, telescopic assembly;501, fixed rod;502, mounting rod;503, fixed plate;504, sliding plate;505, spring;506, sliding rod;6, pulling mechanism;601, sliding sleeve;602, sliding groove;603, pulling block;604, limiting plate;7, connecting rod;8, friction gasket;9, fixing mechanism;901, fixed hole;902, positioning hole;903, bolt. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be described clearly and completely below in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. The components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0019] Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the claimed utility model, but only represents selected embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the utility model.

[0020] It should be noted that: similar signs and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. In addition, the terms "first", "second" and the like are only used to distinguish description, and cannot be understood as indicating or implying relative importance.

[0021] The electrical components appearing in the text are all connected with the main controller and 220V mains of the outside world, and the main controller can be a conventional known device such as a computer that can be controlled.

[0022] In the description of the embodiments of this utility model, it should be noted that the terms "inner", "outer", "upper", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the utility model product is usually placed when in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0023] like Figs. 1-3 As shown, an engine camshaft gear structure includes a camshaft 1 and a camshaft gear 2. A mounting base 3 and a mounting baffle 4 are fixedly mounted on the surface of the camshaft 1. The mounting baffle 4 is fixedly mounted close to the surface of the mounting base 3. The mounting base 3 is provided with a telescopic component 5 and a pulling mechanism 6 inside. A connecting rod 7 is hinged between the telescopic component 5 and the pulling mechanism 6. Friction pads 8 are fixedly mounted on the top surface of the telescopic component 5. The number of friction pads 8 is several. A fixing mechanism 9 is provided on the surface of the camshaft gear 2.

[0024] Specifically, the camshaft gear 2 is aligned with the mounting seat 3 on the surface of the camshaft 1. Pulling the pulling mechanism 6 causes the connecting rod 7 to deflect at an angle, thereby causing the telescopic assembly 5, hinged to the connecting rod 7, to retract into the mounting seat 3, providing sufficient space for the installation of the camshaft gear 2 and the mounting seat 3. Once the camshaft gear 2 is outside the mounting seat 3, the pulling mechanism 6 is released. Under the action of the elastic force inside the telescopic assembly 5, the telescopic assembly 5 moves from inside the mounting seat 3 to the outside, thereby causing the friction pad 8 on the surface of the telescopic assembly 5 to come into close contact with the surface of the camshaft gear 2. The camshaft gear 2 is subjected to a compressive force, which initially fixes the camshaft gear 2. Then, the fixing mechanism 9 can further fix the camshaft gear 2 to the surface of the mounting baffle 4. When the camshaft gear 2 needs to be disassembled, the fixing mechanism 9 is removed from the surface of the camshaft gear 2, and the pulling mechanism 6 is pulled to separate the telescopic component 5 and the friction pad 8 from the camshaft gear 2. Thus, the camshaft gear 2 can be disassembled and replaced. The installation and disassembly of the camshaft gear 2 becomes faster and more convenient, reducing the workload of the staff and improving the efficiency of maintenance work.

[0025] like Figs. 1-3As shown, the telescopic assembly 5 comprises a fixed rod 501 fixedly installed on the inner wall surface of the mounting seat 3, a plurality of mounting rods 502 fixedly installed on the surface of the fixed rod 501, a fixed plate 503 fixedly installed on the surface of the mounting rod 502, a sliding plate 504 slidingly installed on the surface of the mounting rod 502, a spring 505 fixedly connected between the opposite surfaces of the fixed plate 503 and the sliding plate 504, and the spring 505 being arranged outside the mounting rod 502, a sliding rod 506 fixedly installed on the surface of the side of the sliding plate 504 away from the spring 505, and the sliding rod 506 penetrating through the surface of the mounting seat 3 and being slidingly arranged relative to the mounting seat 3, and the friction pad 8 being fixedly installed on the surface of the sliding rod 506.

[0026] Specifically, after the angle of the connecting rod 7 is deflected by pulling the pulling mechanism 6, the angle of the connecting rod 7 is deflected to drive the sliding plate 504 to slide along the surface of the mounting rod 502 to the side of the fixed plate 503, and at the same time the spring 505 is extruded to be deformed, the sliding rod 506 slides along the surface of the mounting seat 3 to drive the friction pad 8 to shrink inward, thereby providing sufficient space for the installation and removal of the camshaft gear 2, and after the pulling mechanism 6 is released, the sliding rod 506 is driven to move outward of the mounting seat 3 by the elastic restoring force of the spring 505, thereby driving the friction pad 8 to extrude and fix the camshaft gear 2, so that the installation and removal of the camshaft gear 2 is more convenient, and the work efficiency is improved.

[0027] As shown in Figs. 1-3 , the pulling mechanism 6 comprises a sliding sleeve 601, a sliding groove 602 is formed in the surface of the sliding sleeve 601, a limiting plate 604 is fixedly installed on the front surface of the fixed rod 501 and slidingly installed on the inner wall surface of the sliding groove 602, a pulling block 603 is fixedly installed on the front surface of the sliding sleeve 601, and the pulling block 603 penetrates through the surface of the mounting seat 3 and is slidingly arranged relative to the surface of the mounting seat 3.

[0028] Specifically, the sliding sleeve 601 is moved outward of the mounting seat 3 by pulling the pulling block 603, and the limiting plate 604 slides along the inner wall surface of the sliding groove 602 during the movement, which is beneficial to the stability of the overall structure and facilitates the subsequent installation and removal of the camshaft gear 2.

[0029] As shown in Figs. 1-3 , the connecting rod 7 is hinged to the surface of the sliding sleeve 601, and one end of the connecting rod 7 away from the sliding sleeve 601 is hinged to the surface of the sliding plate 504.

[0030] Specifically, the connecting rod 7 is hinged to the surfaces of the sliding sleeve 601 and the sliding plate 504, so that the pulling of the pulling mechanism 6 can drive the telescopic movement of the telescopic assembly 5, thereby making the installation and removal of the camshaft gear 2 more convenient and improving the work efficiency.

[0031] AsFigs. 1-3 As shown, the surface of the pulling block 603 is provided with a groove.

[0032] Specifically, the setting of the groove facilitates the maintenance personnel to have a clear grip point when pulling the pulling block 603, which is not easy to slip, and helps the working experience of the maintenance personnel.

[0033] As shown, Figs. 1-3 The fixing mechanism 9 includes a fixing hole 901 provided on the surface of the mounting baffle 4, and a positioning hole 902 provided on the surface of the camshaft gear 2. The number and specifications of the fixing hole 901 and the positioning hole 902 are matched, and the inner wall surfaces of the fixing hole 901 and the positioning hole 902 are threadedly connected with a bolt 903.

[0034] Specifically, the positioning hole 902 on the surface of the camshaft gear 2 is aligned with the fixing hole 901 on the surface of the mounting baffle 4, and the bolt 903 is rotatably inserted into the inner wall surfaces of the positioning hole 902 and the fixing hole 901, so that the camshaft gear 2 can be fixed to the surface of the mounting baffle 4. The fixing mechanism 9 cooperates with the telescopic assembly 5 and the friction pad 8 to fix the camshaft gear 2 from multiple directions, which is beneficial to the stability of the overall structure.

[0035] In summary: align the camshaft gear 2 with the mounting seat 3 on the surface of the camshaft 1, pull the pulling mechanism 6 to drive the angle of the connecting rod 7 to deflect, and then drive the telescopic assembly 5 connected with the connecting rod 7 to retract into the mounting seat 3, providing enough space for the installation of the camshaft gear 2 and the mounting seat 3. When the camshaft gear 2 is located outside the mounting seat 3, loosen the pulling mechanism 6, and under the action of the elastic force inside the telescopic assembly 5, the telescopic assembly 5 moves from the inside to the outside of the mounting seat 3, and then drives the friction pad 8 on the surface of the telescopic assembly 5 to tightly contact the surface of the camshaft gear 2 and generate a pressing force on the camshaft gear 2, so that the camshaft gear 2 can be preliminarily fixed. Then, through the fixing mechanism 9, the camshaft gear 2 can be further fixed to the surface of the mounting baffle 4. When the camshaft gear 2 needs to be disassembled, the fixing mechanism 9 is removed from the surface of the camshaft gear 2, and the pulling mechanism 6 is pulled to drive the telescopic assembly 5 and the friction pad 8 to separate from the camshaft gear 2, and then the camshaft gear 2 can be disassembled and replaced. The installation and disassembly of the camshaft gear 2 become more convenient and fast, which reduces the workload of the workers and is beneficial to the improvement of the maintenance work efficiency.

[0036] The basic principle, main features and advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection required by the present application is defined by the appended claims and their equivalents.

Claims

1. An engine camshaft gear structure, characterized by, The utility model provides a camshaft (1) and camshaft gear (2) including, the camshaft (1) surface fixed mounting has mounting seat (3) and mounting baffle (4), the mounting baffle (4) is fixedly installed in close contact with mounting seat (3) surface, the inside of mounting seat (3) is equipped with telescopic subassembly (5) and pull mechanism (6), the hinged connection of telescopic subassembly (5) and pull mechanism (6) has connecting rod (7), the top surface fixed mounting of telescopic subassembly (5) has friction pad (8), the number of friction pad (8) is a plurality, the surface of camshaft gear (2) is equipped with fixed mechanism (9).

2. An engine camshaft gear structure according to claim 1, characterized in that The telescopic subassembly (5) includes fixed rod (501), the fixed rod (501) is fixedly installed in the inner wall surface of mounting seat (3), the surface fixed mounting of fixed rod (501) has mounting rod (502), the number of mounting rod (502) is a plurality of and is the polar axis distribution with fixed rod (501) as the axis, the surface fixed mounting of mounting rod (502) has fixed plate (503), the surface sliding of mounting rod (502) installs sliding plate (504), the opposite surface of fixed plate (503) and sliding plate (504) is fixedly connected with spring (505), the spring (505) is equipped with in mounting rod (502) outside, the surface fixed mounting of sliding plate (504) away from spring (505) one side has slide rod (506), the slide rod (506) penetrates the surface of mounting seat (3) and is slidably arranged opposite mounting seat (3), and the surface fixed mounting of friction pad (8) has slide rod (506).

3. An engine camshaft gear structure according to claim 2, characterised in that The pull mechanism (6) includes slide sleeve (601), the surface of slide sleeve (601) is equipped with sliding slot (602), the front surface fixed mounting of fixed rod (501) has limit stop (604), the limit stop (604) is slidingly installed on the inner wall surface of sliding slot (602), the front surface fixed mounting of slide sleeve (601) has pull block (603), and the pull block (603) penetrates the surface of mounting seat (3) and is slidably arranged opposite the surface of mounting seat (3).

4. An engine camshaft gear structure according to claim 3, characterized in that The connecting rod (7) is hinged to the surface of slide sleeve (601), and one end of the connecting rod (7) is hinged to the surface of the sliding plate (504) away from the slide sleeve (601).

5. An engine camshaft gear structure according to claim 3, wherein The surface of the pull block (603) is provided with a groove.

6. An engine camshaft gear structure according to claim 1, characterized in that The fixed mechanism (9) includes a fixed hole (901), the fixed hole (901) is provided on the surface of the mounting baffle (4), the camshaft gear (2) is provided with a positioning hole (902) on the surface, the number and specification of the fixed hole (901) and the positioning hole (902) are matched, and the inner wall surfaces of the fixed hole (901) and the positioning hole (902) are screwed with bolts (903).

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