Heavy truck brake mounting structure

Abstract

The utility model relates to a heavy truck brake installation structure which comprises a brake assembly, an installation base and a brake drum, the installation base and the brake drum are installed on the inner side and the outer side of the brake assembly, a threaded piece connected with the installation base is arranged on the inner side of the brake drum, and inner notches which are annularly distributed at equal intervals are formed in the inner side of the brake drum. According to the brake drum, the inner notches and the sliding rails are matched with the clamping blocks and the spring pieces, the sliding rails and the spring pieces are arranged to limit the moving track of the clamping blocks, when the spring pieces support the clamping blocks in the natural state, the inclined faces of the clamping blocks are located in the outer notches, the clamping blocks are clamped in the outer notches, and the clamping blocks are clamped in the outer notches. The nut can be guided to extrude the clamping block in the installation process, the clamping block can automatically move to the inner notch, the inner wall of the outer notch is kept smooth, nut installation is convenient, and when the nut crosses the clamping block in the installation process, the clamping block can reset again under the supporting of the spring piece and is attached to the edge of the nut to form buckling.

Description

Technical Field

[0001] The utility model relates to the technical field of drum brakes, in particular to a heavy truck brake installation structure. Background Art

[0002] Drum brakes utilize a brake transmission mechanism to cause the brake shoe to press the brake friction pad against the inside of the brake drum, thereby generating braking force to slow down the wheels or stop the vehicle in the shortest distance as needed to ensure driving safety. Drum brakes are low in cost, can withstand heavy loads and frequent braking, and are suitable for heavy vehicles.

[0003] The brake drum of the drum brake can not only cooperate with the friction plate to form braking, but also can be installed and fixed to the wheel hub through the bolts integrated on the outside. The outside of the existing brake drum is provided with an outer notch that cooperates with the mounting seat for connection. Generally, a nut is installed in the outer notch and connected to the mounting seat for fixation. The fixing method of the nut is single, and the stability of the structure after connection is not high, and it is easily affected by the vibration of the vehicle. Utility Model Content

[0004] Based on the above description, the utility model provides a heavy truck brake installation structure to solve the problem that the existing brake drum is fixed by nuts, which has a single method and low structural stability.

[0005] The utility model provides a technical solution to the above-mentioned technical problems as follows: a heavy-duty truck brake mounting structure, comprising a brake assembly, a mounting seat mounted on both sides inside and outside the brake assembly, and a brake drum, the inner side of the brake drum is provided with a threaded member connected to the mounting seat, the inner side of the brake drum is provided with inner notches distributed in a circular shape and at equal distances, the inner notches are provided with fasteners for expanding and closing adjustment between the inner side of the brake drum and the inner notches, a spring sheet is provided between the inner notch and the fastener, the spring sheet supports the fastener to expand and fit the outer side of the threaded member.

[0006] On the basis of the above technical solution, the present invention can also be improved as follows.

[0007] Furthermore, the brake drum is installed on the outside of the brake assembly and fits with the top of the mounting seat. An outer slot is opened in the center of the top of the brake drum. Bolts are provided on the edge of the outer slot on the top of the brake drum. The bolts are distributed equidistantly in a circle with the center of the brake drum as the center.

[0008] Furthermore, a plug hole is provided at the center of the bottom of the inner wall of the outer slot, and a threaded column is provided at the center of the top of the mounting seat, which is inserted into the plug hole and extends into the outer slot.

[0009] Furthermore, the threaded part is composed of a nut, which is threadedly connected to the outside of the threaded column and fits against the bottom of the inner wall of the outer slot. The bottom end of the nut is cylindrical and fits against the bottom of the inner wall of the outer slot. The top of the nut is a regular hexagon, and a sealing cover is installed on the top of the inner wall of the outer slot.

[0010] Furthermore, arc-shaped slide rails are provided on two sides of the inner wall of the inner notch that are away from each other, and the slide rails are symmetrically distributed with the center of the brake drum as the origin.

[0011] Furthermore, the fastener is composed of a card block and a slider, the card block is triangular in shape, the two ends of the card block that are far away from each other are located in the inner slot, the other end of the card block extends into the outer slot and is located between the two ends that are far away from each other, and the top of the card block is installed between the tops of the two sides of the inner wall of the inner slot that are far away from each other.

[0012] Furthermore, the slider is arranged at the bottom of the block surface and is slidably connected in the slide rail. The spring sheet is installed between the block and the side of the inner wall of the inner slot away from the nut. The bottom of the block fits with the edge of the cylindrical end of the nut.

[0013] Compared with the prior art, the technical solution of this application has the following beneficial technical effects:

[0014] The utility model cooperates with the clamping block and the spring sheet through the inner notch and the slide rail, and the setting of the slide rail and the spring sheet limits the moving track of the clamping block. When the spring sheet supports the clamping block in a natural state, the inclined surface of the clamping block is located in the outer notch, which can guide the nut to squeeze the clamping block during the installation process, so that the clamping block can automatically move to the inner notch, keep the inner wall of the outer notch smooth, and facilitate the installation of the nut. When the nut passes over the clamping block during the installation process, the clamping block can be reset under the support of the spring sheet and fit with the edge of the nut to form a buckle connection. The process is fully automated, which increases the structural strength and structural stability of the connection between the nut and the threaded column, and the clamping block can be stored in the inner notch when the nut is removed, without affecting the removal of the nut. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A schematic cross-sectional view of a heavy truck brake installation structure provided by an embodiment of the utility model;

[0016] Figure 2 for Figure 1 A partial enlarged schematic diagram of the middle A area;

[0017] Figure 3 An exploded structural diagram of a heavy truck brake installation structure provided by an embodiment of the utility model;

[0018] Figure 4It is a structural schematic diagram of the connection relationship between the nut and the brake drum in the embodiment of the utility model;

[0019] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0020] 1. Brake assembly; 2. Mounting seat; 21. Threaded column; 3. Brake drum; 31. Bolt; 32. External notch; 33. Socket; 4. Internal notch; 41. Slide rail; 5. Nut; 6. Block; 61. Slider; 7. Spring sheet; 8. Sealing cover. DETAILED DESCRIPTION

[0021] In order to facilitate understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. Embodiments of the present application are provided in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0023] See also Figure 1-4 The utility model discloses a heavy truck brake mounting structure, comprising a brake assembly 1, a mounting seat 2 and a brake drum 3 mounted on both sides of the brake assembly 1, a threaded member connected to the mounting seat 2 is arranged on the inner side of the brake drum 3, inner grooves 4 distributed in an annular shape and at equal distances are arranged on the inner side of the brake drum 3, a fastener for adjusting the opening and closing between the inner side of the brake drum 3 and the inner groove 4 is arranged in the inner groove 4, a spring sheet 7 is arranged between the inner groove 4 and the fastener, and the spring sheet 7 supports the fastener to expand and fit on the outer side of the threaded member.

[0024] See also Figure 3 The brake drum 3 is installed on the outside of the brake assembly 1 and fits with the top of the mounting seat 2. An outer slot 32 is opened in the center of the top of the brake drum 3. Bolts 31 are arranged at the edge of the outer slot 32 on the top of the brake drum 3. The bolts 31 are used for installing and fixing the wheel hub. The bolts 31 are distributed in a circular shape with equal distances around the center of the brake drum 3. A socket 33 is opened in the center of the bottom of the inner wall of the outer slot 32. A threaded column 21 is inserted into the socket 33 and extends into the outer slot 32 and is arranged in the center of the top of the mounting seat 2.

[0025] See also Figure 1The threaded part is composed of a nut 5, which is threadedly connected to the outside of the threaded column 21 and fits the bottom of the inner wall of the outer slot 32. The bottom end of the nut 5 is cylindrical and fits the bottom of the inner wall of the outer slot 32. The top of the nut 5 is a regular hexagon. One end of the regular hexagon of the nut 5 does not fit the inner wall of the outer slot 32, and a gap is left between them. A sealing cover 8 is installed on the top of the inner wall of the outer slot 32. The setting that the cylindrical end of the nut 5 fits the inner wall of the outer slot 32 can reduce the vibration impact received by the nut 5 after installation and increase the stability after installation. One end of the regular hexagon of the nut 5 allows the nut 5 to still be used for removal and installation with instruments such as electric wrenches.

[0026] See also Figure 2 Arc-shaped slide rails 41 are provided on two sides of the inner wall of the inner groove 4 that are far away from each other. The slide rails 41 are symmetrically distributed with the center of the brake drum 3 as the origin. The setting of the slide rails 41 can cooperate with the slider 61 on the outside of the block 6 to form a movable connection, thereby increasing the stability of the block 6 during the movable rotation process of the inner groove 4.

[0027] See also Figure 2 The fastening member is composed of a card block 6 and a slider 61. The card block 6 is triangular in shape. The two ends of the card block 6 that are far away from each other are located in the inner notch 4. The other end of the card block 6 extends into the outer notch 32 and is located between the two ends that are far away from each other. The top of the card block 6 is installed between the tops of the two sides of the inner wall of the inner notch 4 that are far away from each other. The card block 6 is rotatably connected between the two sides of the inner wall of the inner notch 4. The slider 61 is set at the bottom of the surface of the card block 6 and is slidably connected in the slide rail 41. The spring sheet 7 is installed between the card block 6 and the side of the inner wall of the inner notch 4 that is away from the nut 5. The setting of the spring sheet 7 can support the inclined surface of the card block 6 to extend to the outer In the slot 32, when the nut 5 is installed, the inclined surface on the top of the block 6 can guide the nut 5 to press the block 6, so that the spring sheet 7 is compressed and the block 6 is received in the inner slot 4. When the nut 5 is installed, the block 6 can automatically reset under the rebound of the spring sheet 7, and form a buckle reinforcement for the nut 5 through the inclined surface at the bottom. The process is automatically continuous, and the bottom of the block 6 fits with the edge of the cylindrical end of the nut 5. The block 6 clamps and fixes the nut 5 to the bottom of the outer slot 32 without the influence of external force, thereby reducing the influence of the vehicle vibration on the nut 5 and increasing the stability and structural strength of the connection of the nut 5.

[0028] When it is necessary to install the nut 5, first insert the nut 5 into the outer slot 32 and threadably connect it with the threaded column 21. During the connection process, the nut 5 drops vertically until the nut 5 contacts the inclined surface at the top of the block 6. During the dropping process, the nut 5 fits the inclined surface at the top of the block 6 to squeeze the block 6, so that the block 6 rotates along the slide rail 41 toward the inner slot 4 through the slider 61, and squeezes the spring sheet 7 until the block 6 is completely received into the inner slot 4. When the nut 5 is installed, the cylindrical end of the nut 5 moves out from the outside of the block 6. At this time, the block 6 loses the external force of the nut 5 squeezing, and the spring sheet 7 resets and pushes the block 6 to move to its original position along the slide rail 41 toward the outer slot 32 through the rebound force. After resetting, the block 6 is buckled at the edge of the cylindrical end of the nut 5 through the inclined surface at the bottom to form a buckle reinforcement.

[0029] When used herein, the singular forms "a", "an", and "said / the" may also include plural forms, unless the context clearly indicates otherwise. It should also be understood that the terms "include / comprise" or "have" etc. specify the presence of stated features, wholes, steps, operations, components, parts or combinations thereof, but do not exclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts or combinations thereof.

[0030] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A heavy truck brake mounting structure, comprising a brake assembly (1), a mounting seat (2) mounted on both sides of the brake assembly (1), and a brake drum (3), characterized in that: The inner side of the brake drum (3) is provided with a threaded part connected to the mounting seat (2); the inner side of the brake drum (3) is provided with inner notches (4) distributed in a circular shape and at equal distances; the inner notches (4) are provided with fasteners for adjusting the opening and closing between the inner side of the brake drum (3) and the inner notches (4); a spring sheet (7) is provided between the inner notches (4) and the fasteners; the spring sheet (7) supports the fasteners to be opened and fitted on the outer side of the threaded part.

2. The heavy truck brake mounting structure according to claim 1, characterized in that: The brake drum (3) is installed on the outside of the brake assembly (1) and fits with the top of the mounting seat (2). An outer notch (32) is provided in the center of the top of the brake drum (3). Bolts (31) are provided at the edge of the outer notch (32) at the top of the brake drum (3). The bolts (31) are distributed in a circular shape with equal distances around the center of the brake drum (3).

3. The heavy truck brake mounting structure according to claim 2, characterized in that: A plug hole (33) is provided at the center of the bottom of the inner wall of the outer notch (32), and a threaded column (21) is provided at the center of the top of the mounting seat (2) and is inserted into the plug hole (33) and extends into the outer notch (32).

4. The heavy truck brake mounting structure according to claim 3 is characterized in that: The threaded member is composed of a nut (5), which is threadedly connected to the outer side of the threaded column (21) and fits the bottom of the inner wall of the outer notch (32). The bottom end of the nut (5) is cylindrical and fits the bottom of the inner wall of the outer notch (32). The top end of the nut (5) is a regular hexagon. A sealing cover (8) is installed on the top of the inner wall of the outer notch (32).

5. The heavy truck brake mounting structure according to claim 4, characterized in that: Arc-shaped slide rails (41) are provided on two sides of the inner wall of the inner notch (4) that are away from each other. The slide rails (41) are symmetrically distributed with the center of the brake drum (3) as the origin.

6. The heavy truck brake mounting structure according to claim 5, characterized in that: The fastening member is composed of a clamping block (6) and a sliding block (61); the clamping block (6) is triangular in shape; two ends of the clamping block (6) that are away from each other are located in the inner notch (4); the other end of the clamping block (6) extends into the outer notch (32) and is located between the two ends that are away from each other; the top of the clamping block (6) is installed between the tops of the two sides of the inner wall of the inner notch (4) that are away from each other.

7. The heavy truck brake mounting structure according to claim 6, characterized in that: The sliding block (61) is arranged at the bottom of the surface of the clamping block (6) and is slidably connected in the slide rail (41); the spring sheet (7) is installed between the clamping block (6) and a side of the inner wall of the inner notch (4) away from the nut (5); the bottom of the clamping block (6) is in contact with the edge of the cylindrical end of the nut (5).

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