Adjustable passenger car engine cooling fan transmission mounting seat

Abstract

The utility model belongs to the technical field of engine cooling, and particularly relates to an adjustable passenger car engine cooling fan transmission mounting seat which comprises a base, a pitching seat, a mounting seat, a frame, a horizontal adjusting assembly and a pitching adjusting assembly. The rear side of the base is rotationally connected to the frame, the horizontal adjusting assembly is installed on the frame, and the adjusting end of the horizontal adjusting assembly is connected with the front end of the base and used for adjusting the horizontal angle of the base. The pitching seat is installed on the base, and the pitching adjusting assembly is arranged at the front end of the pitching seat and used for adjusting the pitching angle of the pitching seat. According to the scheme, the installation difficulty of the transmission assembly can be effectively reduced, the assembly convenience is improved, and meanwhile the service life of a belt of an engine cooling fan can be prolonged.

Description

Technical Field

[0001] This utility model belongs to the field of engine cooling technology, and more specifically, it relates to an adjustable bus engine cooling fan drive mounting bracket. Background Technology

[0002] There are many ways to arrange the engine cooling system of a rear-mounted bus. Considering factors such as user purchase cost, usage habits, and maintenance capabilities, traditional fan drive devices (i.e. belt drive) are still widely used in buses.

[0003] Bus engine cooling fans are typically connected to the engine via a belt drive system, and the positioning accuracy of the mounting bracket directly affects the belt's lifespan. Traditional mounting brackets are mostly fixed structures, making fan pulley installation and adjustment difficult during normal assembly. During high-speed engine operation, the fan drive belt is prone to abnormal wear and breakage, causing the vehicle to malfunction and resulting in significant economic losses for users, while also negatively impacting bus manufacturers. Utility Model Content

[0004] To address the aforementioned technical problems, this utility model provides an adjustable bus engine cooling fan drive mounting bracket, which solves the problems of difficulty in installing and adjusting the fan pulley during normal assembly, and the tendency for the fan drive belt to experience abnormal wear and breakage during high-speed engine operation.

[0005] The purpose and effect of this utility model, an adjustable bus engine cooling fan drive mounting bracket, are achieved by the following specific technical means:

[0006] An adjustable bus engine cooling fan drive mounting bracket includes: a base, a pitch seat, a mounting bracket, a frame, a leveling adjustment assembly, and a pitch adjustment assembly;

[0007] The rear side of the base is rotatably connected to the frame, the horizontal adjustment component is mounted on the frame, and the adjustment end of the horizontal adjustment component is connected to the front end of the base for adjusting the horizontal angle of the base.

[0008] The pitch mount is mounted on the base, and the pitch adjustment component is located at the front end of the pitch mount for adjusting the pitch angle of the pitch mount.

[0009] The bottom of the mounting base is mounted on the pitch seat, and the mounting base is equipped with an engine belt tensioner and a fan belt tensioner.

[0010] Furthermore, it also includes a limiting component, which includes a limiting post and a limiting nut;

[0011] The base has a U-shaped block structure. The limiting post is located at the rear of the base. The lower end of the limiting post is fixedly connected to the frame. The rear of the base is rotatably sleeved on the limiting post. The upper end of the limiting post passes through the base and is threadedly connected to the limiting nut. The lower surface of the limiting nut can abut against the base.

[0012] Furthermore, the horizontal adjustment assembly includes a limiting block, a rotating sleeve, a horizontal adjustment screw, and a horizontal adjustment nut;

[0013] The limiting block is fixedly installed on the vehicle frame. A limiting hole is opened on the right side wall of the limiting block. The right end of the horizontal adjusting screw is fixedly connected to the rotating sleeve. The rotating sleeve is hinged to the front end of the base. The left end of the horizontal adjusting screw passes through the limiting hole and is threadedly connected to the horizontal adjusting nut. The horizontal adjusting screw can move within the limiting hole. The right end of the horizontal adjusting nut can abut against the left side wall of the limiting block.

[0014] Furthermore, the pitch seat has a U-shaped block structure, and the pitch seat is installed inside the base and located at the top of the base;

[0015] It also includes positioning components. Two sets of positioning components are provided on the left and right side walls of the pitch seat, and the two sets of positioning components are distributed at intervals along the front-back direction.

[0016] The positioning assembly includes a positioning bolt and a positioning nut;

[0017] The head of the positioning bolt is located inside the pitch seat. The screw portion of the positioning bolt passes outward through the side walls of the pitch seat and the base and is threadedly connected to the positioning nut. The screw portion of the positioning bolt is rotatably sleeved on the pitch seat and the base. The inner end of the positioning nut can abut against the outer side wall of the base.

[0018] Furthermore, the pitch adjustment assembly includes a pitch adjustment bolt, a pitch adjustment nut, and an abutment block;

[0019] The screw portion of the pitch adjustment bolt is threaded onto the pitch seat. The lower end of the screw portion of the pitch adjustment bolt passes through the bottom of the pitch seat and is threaded onto the pitch adjustment nut. The upper end face of the pitch adjustment nut can abut against the lower surface of the pitch seat. The abutment block is fixedly connected to the inner bottom wall of the base, and the lower end of the pitch adjustment bolt is used to abut against the upper surface of the abutment block.

[0020] Furthermore, it also includes a collision buffer assembly, which is provided in two sets and is respectively disposed on the left and right outer walls of the base;

[0021] The collision buffer assembly includes a hinged seat, a baffle, and a spring;

[0022] The two hinge seats are respectively fixedly installed on the left and right outer walls of the base. The baffle is hinged on the hinge seats and is vertically distributed. Several springs are arranged in an array along the front and back direction of the base. The two ends of the springs are fixedly connected to the inner wall of the baffle and the outer wall of the base, respectively. The springs are located below the hinge seats. The two baffles are located on the left and right sides of the mounting base, respectively.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] This invention improves assembly convenience through the synergistic action of the horizontal and vertical adjustment components, enabling bidirectional adjustment of the mounting base's horizontal and vertical angles. This ensures rapid alignment of the center plane of the fan belt tensioner's belt mounting groove with the center plane of the engine drive wheel's belt mounting groove, significantly reducing the risk of belt wear. The overall structure is compact and easy to adjust, effectively extending belt life and reducing maintenance frequency. Attached Figure Description

[0025] Figure 1 This is a partial structural schematic diagram of the present invention (first view).

[0026] Figure 2 This is a partial structural schematic diagram of the present invention (second view).

[0027] Figure 3 This is a schematic diagram of the connection structure between the base and the tilting seat in this utility model.

[0028] Figure 4 This is a partial exploded view of the base and tilting seat of this utility model.

[0029] Figure 5 This is a schematic diagram of the installation structure of this utility model.

[0030] In the diagram, the correspondence between component names and drawing numbers is as follows:

[0031] Base 1, Pitch Mount 2, Mounting Mount 3, Engine Belt Tensioner 31, Fan Belt Tensioner 32, Fan Belt 33, Engine Belt 34, Frame 4, Fan 41, Drive Wheel 42, Engine 43, Drive Wheel 44, Horizontal Adjustment Assembly 5, Limiting Block 51, Rotating Sleeve 52, Horizontal Adjustment Screw 53, Horizontal Adjustment Nut 54, Pitch Adjustment Assembly 6, Pitch Adjustment Bolt 61, Pitch Adjustment Nut 62, Abutment Block 63, Limiting Assembly 7, Limiting Post 71, Limiting Nut 72, Positioning Assembly 8, Positioning Bolt 81, Positioning Nut 82, Collision Buffer Assembly 9, Hinge Mount 91, Baffle 92, Spring 93. Detailed Implementation

[0032] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0033] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and 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, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0034] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0035] Example:

[0036] As attached Figure 1 To be continued Figure 5 As shown:

[0037] This utility model provides an adjustable bus engine cooling fan drive mounting bracket, including: a base 1, a pitch seat 2, a mounting seat 3, a frame 4, a horizontal adjustment component 5, and a pitch adjustment component 6;

[0038] The rear side of the base 1 is rotatably connected to the frame 4. The horizontal adjustment component 5 is mounted on the frame 4. The adjustment end of the horizontal adjustment component 5 is connected to the front end of the base 1 and is used to adjust the horizontal angle of the base 1.

[0039] The pitch seat 2 is mounted on the base 1, and the pitch adjustment component 6 is located at the front end of the pitch seat 2 for adjusting the pitch angle of the pitch seat 2.

[0040] The bottom of the mounting base 3 is mounted on the pitch base 2, and the mounting base 3 is equipped with an engine belt tensioner 31 and a fan belt tensioner 32.

[0041] In this embodiment, the engine belt tensioner 31 and the fan belt tensioner 32 are rotatably connected to the upper part of the mounting base 3 at intervals from front to back. An engine 43 is located on the right side of the mounting base 3, and a drive wheel 44 is connected to the drive end of the engine 43. The drive wheel 44 is connected to the engine belt tensioner 31 via the engine belt 34. A fan 41 is located on the left side of the mounting base 3, and a drive wheel 42 for rotating the fan 41 is connected to the fan belt tensioner 32 via the fan belt 33. Both the engine 43 and the fan 41 are mounted on the frame 4. The frame 4 is horizontally fixed inside the bus, and the bottom of the mounting base 3 is fixedly connected to the pitch seat 2 by bolts and nuts.

[0042] By using the horizontal adjustment component 5 and the pitch adjustment component 6, two degrees of freedom—horizontal and pitch—are achieved to quickly align the center plane of the belt mounting groove of the fan belt tensioner 32 with the center plane of the belt mounting groove of the engine 43 drive wheel 44, reducing the likelihood of belt breakage due to incorrect mounting position of the mounting seat 3. The center plane of the belt mounting groove refers to the center plane of the two opposing inclined groove surfaces of the belt mounting groove.

[0043] As a preferred embodiment, it also includes a limiting component 7, which includes a limiting post 71 and a limiting nut 72;

[0044] The base 1 has a U-shaped block structure. The limiting post 71 is located at the rear of the base 1. The lower end of the limiting post 71 is fixedly connected to the frame 4. The rear of the base 1 is rotatably sleeved on the limiting post 71. The upper end of the limiting post 71 passes through the base 1 and is threadedly connected to the limiting nut 72. The lower surface of the limiting nut 72 can abut against the base 1.

[0045] In this embodiment, the upper end of the limiting post 71 passes through the base 1 and is threadedly connected to the limiting nut 72. The upper part of the limiting post 71 has an external thread for threaded connection with the limiting nut 72. The length of the external thread on the upper part of the limiting post 71 is sufficient to allow the lower surface of the limiting nut 72 to abut against the base 1. Thus, by using the limiting nut 72, when adjusting the angle, the limiting nut 72 can be rotated upward so that the lower end of the limiting nut 72 disengages from the base 1, thereby allowing the base 1 to rotate horizontally around the limiting post 71. After the angle adjustment is completed, the limiting nut 72 is rotated downward so that the lower surface of the limiting nut 72 abuts against the base 1, thereby limiting and fixing the base 1.

[0046] By using the limit pin 71 and the limit nut 72, the rotational freedom of the base 1 is released during adjustment, and it is locked after adjustment to ensure the accuracy and stability of the horizontal angle adjustment and prevent the base 1 from loosening.

[0047] As a preferred embodiment, the horizontal adjustment assembly 5 includes a limiting block 51, a rotating sleeve 52, a horizontal adjustment screw 53, and a horizontal adjustment nut 54;

[0048] The limiting block 51 is fixedly installed on the frame 4. A limiting hole is opened on the right side wall of the limiting block 51. The right end of the horizontal adjusting screw 53 is fixedly connected to the rotating sleeve 52. The rotating sleeve 52 is hinged to the front end of the base 1. The left end of the horizontal adjusting screw 53 passes through the limiting hole and is threadedly connected to the horizontal adjusting nut 54. The horizontal adjusting screw 53 can move in the limiting hole. The right end of the horizontal adjusting nut 54 can abut against the left side wall of the limiting block 51.

[0049] In this embodiment, the limiting block 51 has a "U"-shaped block structure. The limiting hole is opened on the right side wall of the limiting block 51. The limiting hole is an elongated hole, and its length direction is distributed along the front-back direction of the limiting block 51. The horizontal adjusting screw 53 can move within the limiting hole, including moving back and forth and moving left and right. A rotating column is vertically fixed on the inner bottom wall of the base 1. The rotating sleeve 52 is rotatably connected to the rotating column, thereby realizing the hinge between the rotating sleeve 52 and the base 1. When adjusting horizontally, first loosen the limiting nut 72 so that the base 1 can rotate horizontally around the limiting column 71. Then rotate the horizontal adjusting nut 54 to the left so that the horizontal adjusting screw 53 can move within the limiting hole to adjust the horizontal angle of the base 1. After adjustment, tighten the horizontal adjusting nut 54 so that the right end of the horizontal adjusting nut 54 abuts against the left side wall of the limiting block 51. Then tighten the limiting nut 72 to complete the horizontal angle adjustment of the base 1.

[0050] The combination of a long strip-shaped limiting hole and a horizontal adjusting screw 53 allows the screw to move in multiple directions. With the hinge structure of the rotating sleeve 52, the base 1 can be adjusted steplessly. The locking design of the horizontal adjusting nut 54 further reinforces the position after adjustment and prevents springback.

[0051] As a preferred embodiment, the pitch seat 2 has a "U"-shaped block structure, and the pitch seat 2 is installed inside the base 1 and located at the upper part of the base 1;

[0052] It also includes positioning components 8. Two sets of positioning components 8 are provided on the left and right side walls of the pitch seat 2, and the two sets of positioning components 8 are distributed at intervals along the front and back direction.

[0053] The positioning component 8 includes a positioning bolt 81 and a positioning nut 82;

[0054] The head of the positioning bolt 81 is located inside the pitch seat 2. The screw portion of the positioning bolt 81 extends outward through the side walls of the pitch seat 2 and the base 1 and is threadedly connected to the positioning nut 82. The screw portion of the positioning bolt 81 is rotatably sleeved on the pitch seat 2 and the base 1. The inner end of the positioning nut 82 can abut against the outer side wall of the base 1.

[0055] In this embodiment, the axes of the two rear positioning bolts 81 are collinear. The rear of both the pitch seat 2 and the base 1 are provided with circular holes for the two rear positioning bolts 81 to pass through, allowing the pitch seat 2 to rotate around the rear positioning bolts 81. The front of the pitch seat 2 is provided with strip-shaped holes distributed in the front-rear direction for the screw portion of the front positioning bolt 81 to pass through. The front of the base 1 is provided with strip-shaped holes distributed in the vertical direction for the screw portion of the front positioning bolt 81 to pass through. The pitch adjustment assembly 6 can adjust the pitch angle of the pitch seat 2 through the strip-shaped holes distributed in the front-rear direction of the pitch seat 2 and the strip-shaped holes distributed in the vertical direction of the front of the base 1.

[0056] The pitch seat 2 is double-fixed by positioning bolts 81 and nuts distributed at the front and rear. The rear round hole provides a fulcrum for rotation, and the front strip hole accommodates displacement during pitch adjustment, ensuring that the pitch seat 2 is both flexible and adjustable as well as firm and reliable.

[0057] As a preferred embodiment, the pitch adjustment assembly 6 includes a pitch adjustment bolt 61, a pitch adjustment nut 62, and an abutment block 63;

[0058] The screw portion of the pitch adjusting bolt 61 is threadedly connected to the pitch seat 2. The lower end of the screw portion of the pitch adjusting bolt 61 passes through the bottom of the pitch seat 2 and is threadedly connected to the pitch adjusting nut 62. The upper end face of the pitch adjusting nut 62 can abut against the lower surface of the pitch seat 2. The abutment block 63 is fixedly connected to the inner bottom wall of the base 1. The lower end of the pitch adjusting bolt 61 is used to abut against the upper surface of the abutment block 63.

[0059] In this embodiment, when adjusting the pitch angle of the mounting base 3, the positioning nut 82 of the positioning component 8 is loosened to make the pitch seat 2 movable. According to the required pitch angle, the lower end of the pitch adjusting bolt 61 is abutted against the upper surface of the abutment block 63, and the pitch adjusting bolt 61 is rotated to adjust the distance between the bottom of the pitch seat 2 and the abutment block 63. After the adjustment is completed, the positioning nut 82 of the positioning component 8 is tightened to make the pitch seat 2 in a limited and fixed state, and the pitch adjusting nut 62 is rotated so that the upper end surface of the pitch adjusting nut 62 abuts against the lower surface of the pitch seat 2 to complete the pitch angle adjustment of the pitch seat 2.

[0060] The contact between the pitch adjusting bolt 61 and the abutment block 63 enables fine adjustment of the pitch angle, and the locking function of the pitch adjusting nut 62 prevents loosening after adjustment, thus improving the adjustment accuracy.

[0061] As a preferred embodiment, it also includes a collision buffer assembly 9, which is provided in two sets and is respectively disposed on the left and right outer walls of the base 1.

[0062] The collision buffer assembly 9 includes a hinge seat 91, a baffle 92, and a spring 93;

[0063] The two hinge seats 91 are respectively fixedly installed on the left and right outer walls of the base 1. The baffle 92 is hinged on the hinge seat 91 and is vertically distributed. Several springs 93 are arranged in an array along the front and back direction of the base 1. The two ends of the springs 93 are fixedly connected to the inner wall of the baffle 92 and the outer wall of the base 1, respectively. The springs 93 are located below the hinge seat 91. The two baffles 92 are respectively located on the left and right sides of the mounting base 3.

[0064] In this embodiment, the lower part of the baffle 92 is hinged to the hinge seat 91. When the engine belt 34 or the fan belt 33 breaks, the mounting seat 3 is affected and swings left and right. The baffle 92 provides buffer protection to avoid impact damage to the surrounding parts of the mounting seat 3.

[0065] The combination of the hinged baffle 92 and the spring 93 absorbs the impact of the swinging of the mounting base 3 when the belt breaks, disperses the stress, avoids hard collision damage to key components such as the engine 43 or the fan 41, and improves system safety.

[0066] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. An adjustable bus engine cooling fan drive mounting bracket, characterized in that, include: Base (1), pitch seat (2), mounting base (3), frame (4), leveling adjustment assembly (5) and pitch adjustment assembly (6); The rear side of the base (1) is rotatably connected to the frame (4), and the horizontal adjustment component (5) is mounted on the frame (4). The adjustment end of the horizontal adjustment component (5) is connected to the front end of the base (1) to adjust the horizontal angle of the base (1). The pitch seat (2) is mounted on the base (1), and the pitch adjustment component (6) is located at the front end of the pitch seat (2) for adjusting the pitch angle of the pitch seat (2); The bottom of the mounting base (3) is mounted on the pitch base (2), and the mounting base (3) is equipped with an engine belt tensioner (31) and a fan belt tensioner (32).

2. The adjustable bus engine cooling fan drive mounting bracket as described in claim 1, characterized in that: It also includes a limiting component (7), which includes a limiting post (71) and a limiting nut (72); The base (1) has a "U" shaped block structure. The limiting post (71) is located at the rear of the base (1). The lower end of the limiting post (71) is fixedly connected to the frame (4). The rear of the base (1) is rotatably sleeved on the limiting post (71). The upper end of the limiting post (71) passes through the base (1) and is threadedly connected to the limiting nut (72). The lower surface of the limiting nut (72) can abut against the base (1).

3. The adjustable bus engine cooling fan drive mounting bracket as described in claim 1, characterized in that: The horizontal adjustment assembly (5) includes a limiting block (51), a rotating sleeve (52), a horizontal adjustment screw (53), and a horizontal adjustment nut (54); The limiting block (51) is fixedly installed on the frame (4). A limiting hole is opened on the right side wall of the limiting block (51). The right end of the horizontal adjusting screw (53) is fixedly connected to the rotating sleeve (52). The rotating sleeve (52) is hinged to the front end of the base (1). The left end of the horizontal adjusting screw (53) passes through the limiting hole and is threadedly connected to the horizontal adjusting nut (54). The horizontal adjusting screw (53) can move in the limiting hole. The right end of the horizontal adjusting nut (54) can abut against the left side wall of the limiting block (51).

4. The adjustable bus engine cooling fan drive mounting bracket as described in claim 2, characterized in that: The pitch seat (2) has a "U" shaped block structure. The pitch seat (2) is installed inside the base (1) and located on the upper part of the base (1). It also includes positioning components (8), and two sets of positioning components (8) are provided on the left and right side walls of the pitch seat (2), and the two sets of positioning components (8) are distributed at intervals along the front and back direction; The positioning component (8) includes a positioning bolt (81) and a positioning nut (82); The head of the positioning bolt (81) is located inside the pitch seat (2). The screw portion of the positioning bolt (81) passes outward through the side walls of the pitch seat (2) and the base (1) and is threadedly connected to the positioning nut (82). The screw portion of the positioning bolt (81) is rotatably sleeved on the pitch seat (2) and the base (1). The inner end of the positioning nut (82) can abut against the outer side wall of the base (1).

5. An adjustable bus engine cooling fan drive mounting bracket as described in claim 4, characterized in that: The pitch adjustment assembly (6) includes a pitch adjustment bolt (61), a pitch adjustment nut (62), and an abutment block (63); The screw portion of the pitch adjusting bolt (61) is threaded onto the pitch seat (2). The lower end of the screw portion of the pitch adjusting bolt (61) penetrates the bottom of the pitch seat (2) and is threaded onto the pitch adjusting nut (62). The upper end face of the pitch adjusting nut (62) can abut against the lower surface of the pitch seat (2). The abutment block (63) is fixedly connected to the inner bottom wall of the base (1). The lower end of the pitch adjusting bolt (61) is used to abut against the upper surface of the abutment block (63).

6. The adjustable bus engine cooling fan drive mounting bracket as described in claim 1, characterized in that: It also includes a collision buffer assembly (9), which is provided in two sets and is respectively provided on the left and right outer walls of the base (1); The collision buffer assembly (9) includes a hinge seat (91), a baffle (92), and a spring (93); The two hinge seats (91) are fixedly installed on the left and right outer walls of the base (1), respectively. The baffle (92) is hinged on the hinge seat (91) and is vertically distributed. Several springs (93) are arranged in an array along the front and back direction of the base (1). The two ends of the spring (93) are fixedly connected to the inner wall of the baffle (92) and the outer wall of the base (1), respectively. The spring (93) is located below the hinge seat (91), and the two baffles (92) are located on the left and right sides of the mounting base (3), respectively.

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