Transmission device of milling machine

Abstract

The utility model discloses a transmission device of a milling machine, which belongs to the technical field of transmission devices and comprises a mounting seat, a base is mounted above the mounting seat, an L-shaped frame is mounted in the middle of the upper portion of the base, an engine is connected to the upper portion of the L-shaped frame through bolts, and a movable shaft is mounted on the inner side of the top of the L-shaped frame. Four damping assemblies are arranged on the two sides of the upper portion of a mounting base, firstly, a transmission device is mounted on a milling machine, then a tensioning assembly is mounted on the inner side of an L-shaped frame, at the moment, a connecting rod is shifted according to the use requirement, a wheel shaft is made to be matched with a tensioning wheel to abut against a transmission belt, and a first belt wheel, the transmission belt and a second belt wheel are driven by an engine to operate; and secondly, the second belt pulley drives the movable shaft to rotate, namely, the milling drum can be driven to rotate, the transmission device is provided with a tensioning structure, the transmission belt can be tensioned according to requirements, and the problem that when the milling machine continues to operate by means of inertia, the abrasion degree is large due to belt slipping is effectively solved.

Description

Technical Field

[0001] This utility model relates to the field of transmission device technology, and more specifically, to a milling machine transmission device. Background Technology

[0002] A milling machine is an important piece of machinery used in road construction, primarily for removing old asphalt or concrete pavement layers to allow for new paving work. The transmission system is one of the core components of a milling machine, responsible for transmitting power from the engine to all working parts.

[0003] Milling machines are typically driven by either hydraulic or mechanical methods, with mechanical methods being more commonly used. They mainly consist of an engine, a belt drive system, and a milling drum reducer.

[0004] Based on the above, the inventors have discovered that: currently, when using mechanical milling machines, traditional belt drive systems typically use simple pulleys and belts for operation, lacking a tensioning structure on the inside. As the milling machine continues to run due to inertia, belt slippage causes significant wear. Therefore, in view of this, the inventors have researched and improved the existing structure to provide a milling machine transmission device, aiming to achieve a more practical purpose. Utility Model Content

[0005] 1. Technical problems to be solved

[0006] In view of the problems existing in the prior art, the purpose of this utility model is to provide a milling machine transmission device, which can prevent the problem of excessive wear caused by belt slippage in traditional belt drive systems, which usually use simple pulleys and belts for operation and lack a tensioning structure on the inside. When the milling machine continues to run by inertia, the belt slips.

[0007] 2. Technical Solution

[0008] To solve the above problems, the present invention adopts the following technical solution.

[0009] A milling machine transmission device includes a mounting base, a base mounted on top of the mounting base, an L-shaped frame mounted at the center of the top of the base, an engine bolted to the top of the L-shaped frame, and a movable shaft mounted inside the top of the L-shaped frame. A pulley one is mounted on the left output end of the engine, a drive belt is driven to the outer side of the pulley one, a pulley two is mounted on the inner side of the drive belt away from the pulley one, a mounting disc one and a mounting disc two are mounted from left to right on the outer side of the movable shaft of the pulley one, a tensioning assembly is bolted to the inner side of the L-shaped frame near the drive belt, a shock-absorbing assembly is mounted at the connection between the mounting base and the base, and fastening bolts one are threaded to the four corners of the mounting base. Fastening bolts two are threaded to the top of the shock-absorbing assembly.

[0010] Furthermore, the mounting base and the base have the same thickness, and the mounting base, the base, and the L-shaped frame are all made of aluminum alloy.

[0011] Furthermore, the tensioning assembly comprises an L-shaped seat, a connecting rod, a mounting shaft, a tensioning wheel, and a wheel axle. The L-shaped seat is bolted to the inner side of the L-shaped frame. The connecting rod is mounted on one side of the L-shaped seat via the mounting shaft. A wheel axle is mounted on the inner side of the connecting rod. A tensioning wheel is mounted on one end of the wheel axle. The tensioning wheel is matched with the transmission belt.

[0012] Furthermore, the shock absorption assembly is provided in four groups, symmetrically arranged on both sides above the mounting base, and the structural composition of each group of shock absorption assemblies is identical.

[0013] Furthermore, the shock absorption assembly consists of two buffer plates and four shock absorption rods. The four shock absorption rods are symmetrically arranged between the two buffer plates. The upper part of the buffer plate is provided with an installation groove, which is connected to a fastening bolt by two threads. The shock absorption rod is composed of a shock absorption spring and a damping rod.

[0014] Furthermore, the second set of fastening bolts is provided in four types, and each set of fastening bolts is threaded through the base and connected to the shock absorption component.

[0015] Furthermore, one end of the movable shaft is connected to the second pulley, and the other end of the movable shaft is connected to the milling drum reducer.

[0016] 3. Beneficial effects

[0017] Compared with existing technologies, the advantages of this utility model are:

[0018] This solution involves installing four sets of shock-absorbing components on both sides of the upper part of the mounting base. First, the transmission device is installed on the milling machine, and then the tensioning component is installed on the inside of the L-shaped frame. At this point, the connecting rod is moved according to the usage requirements, so that the wheel axle and the tensioning wheel abut against the transmission belt. The engine drives pulley one, the transmission belt and pulley two to run. Then, pulley two drives the movable shaft to rotate, which in turn drives the milling drum to rotate. This transmission device has a tensioning structure, which can tighten the transmission belt as needed, effectively solving the problem of excessive wear caused by belt slippage when the milling machine continues to run by inertia. Attached Figure Description

[0019] Figure 1 This is a three-dimensional schematic diagram of the present invention;

[0020] Figure 2 This is a schematic diagram of the mounting base of this utility model;

[0021] Figure 3 This is a schematic diagram of the side view of the present invention;

[0022] Figure 4 This is a schematic diagram of the transmission mechanism of this utility model.

[0023] Explanation of the labels in the diagram:

[0024] 1. Mounting base; 2. Base; 3. L-shaped frame; 4. Engine; 5. Pulley 1; 6. Tensioning assembly; 61. L-shaped seat; 62. Connecting rod; 63. Mounting shaft; 64. Tensioning wheel; 65. Axle; 7. Pulley 2; 8. Drive belt; 9. Shock absorption assembly; 91. Buffer plate; 92. Mounting groove; 93. Shock absorption rod; 10. Fastening bolt 1; 11. Fastening bolt 2; 12. Mounting plate 1; 13. Mounting plate 2; 14. Movable shaft. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0026] Example:

[0027] Please see Figure 1-4A milling machine transmission device includes a mounting base 1, with a base 2 mounted on top of the mounting base 1. The mounting base 1 and base 2 are used to mount the transmission device. An L-shaped frame 3 is mounted at the center of the upper part of the base 2. An engine 4 is bolted to the upper part of the L-shaped frame 3, and the engine 4 drives a belt drive system. A movable shaft 14 is mounted inside the top of the L-shaped frame 3. A pulley 5 is mounted on the left output end of the engine 4. A drive belt 8 is driven to the outer side of the pulley 5. A pulley 7 is mounted on the inner side of the drive belt 8 away from the pulley 5. Mounting discs 12 and 13 are mounted from left to right on the outer side of the movable shaft 14 outside the pulley 5, respectively. Mounting discs 12 and 13 are used to mount a milling drum reducer. A tensioning assembly 6 is bolted to the inner side of the L-shaped frame 3 near the drive belt 8, and the tensioning assembly 6 is used to adjust the tension of the drive belt 8. A shock-absorbing assembly 9 is installed at the connection between the mounting base 1 and the base 2, and the shock-absorbing assembly 9 is used to increase the stability of the transmission device. Furthermore, fastening bolts 10 are threadedly connected to the four corners of the mounting base 1, and fastening bolts 21 are threadedly connected to the top of the shock absorption component 9.

[0028] See Figure 1 The mounting base 1 and the base 2 have the same thickness, and the mounting base 1, the base 2 and the L-shaped frame 3 are all made of aluminum alloy. By using aluminum alloy to make the mounting base 1, the base 2 and the L-shaped frame 3, the length can be extended.

[0029] See Figure 3 and Figure 4 The tensioning assembly 6 consists of an L-shaped seat 61, a connecting rod 62, a mounting shaft 63, a tensioning wheel 64, and a wheel axle 65. The L-shaped seat 61 is bolted to the inside of the L-shaped frame 3. The connecting rod 62 is mounted on one side of the L-shaped seat 61 via the mounting shaft 63. The wheel axle 65 is mounted on the inside of the connecting rod 62. The tensioning wheel 64 is mounted on one end of the wheel axle 65. The tensioning wheel 64 is matched with the transmission belt 8. By setting the connecting rod 62 and the wheel axle 65, the tension of the transmission belt 8 can be flexibly adjusted.

[0030] See Figure 1 and Figure 2 The shock absorber 9 is provided in four groups, symmetrically arranged on both sides above the mounting base 1, and the structure of each group of shock absorber 9 is the same. By setting the shock absorber 9, the stability of the transmission device can be increased.

[0031] See Figure 1 and Figure 2 The shock absorption assembly 9 is composed of two buffer plates 91 and four shock absorption rods 93. The four shock absorption rods 93 are symmetrically arranged between the two buffer plates 91. The upper part of the buffer plate 91 is provided with a mounting groove 92, which is threadedly connected to the fastening bolt 11. The shock absorption rod 93 is composed of a shock absorption spring and a damping rod. By setting the shock absorption rod 93, the amplitude generated during the operation of the transmission device can be reduced.

[0032] See Figure 1 and Figure 2 There are four types of fastening bolts 211. Each set of fastening bolts 211 passes through the base 2 and is threadedly connected to the shock absorber 9. The shock absorber 9 can be limited by setting fastening bolts 211.

[0033] See Figure 1 and Figure 4 One end of the movable shaft 14 is connected to the second pulley 7, and the other end of the movable shaft 14 is connected to the milling drum reducer. By setting the movable shaft 14, the milling drum reducer can be installed in conjunction with the first mounting plate 12 and the second mounting plate 13.

[0034] In use: First, install the transmission device on the milling machine, and then install the tensioning assembly 6 on the inside of the L-shaped frame 3. At this time, according to the usage requirements, move the connecting rod 62 so that the wheel axle 65 cooperates with the tensioning wheel 64 to abut against the transmission belt 8. The engine 4 drives the pulley 5, the transmission belt 8 and the pulley 7 to run. Then, the pulley 7 drives the movable shaft 14 to rotate, which in turn drives the milling drum to rotate. This transmission device has a tensioning structure, which can tension the transmission belt 8 as needed, effectively solving the problem of large wear caused by belt slippage when the milling machine continues to run by inertia.

[0035] Finally, it should be noted that in the description of this utility model, the terms "vertical," "upper," "lower," "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. 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.

[0036] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0037] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.

Claims

1. A milling machine transmission device, comprising a mounting base (1), a base (2) mounted above the mounting base (1), an L-shaped frame (3) mounted at the middle position above the base (2), an engine (4) bolted to the top of the L-shaped frame (3), and a movable shaft (14) internally mounted in the top of the L-shaped frame (3), characterized in that: A pulley 1 (5) is installed on the left output end of the engine (4). A transmission belt (8) is connected to the outer side of the pulley 1 (5). A pulley 2 (7) is installed on the inner side of the transmission belt (8) away from the pulley 1 (5). A mounting plate 1 (12) and a mounting plate 2 (13) are installed from left to right on the outer side of the movable shaft (14) on the outer side of the pulley 1 (5). A tensioning component (6) is bolted to the inner side of the L-shaped frame (3) near the transmission belt (8). A shock-absorbing component (9) is installed at the connection between the mounting base (1) and the base (2). Fastening bolts 1 (10) are threaded to the four corners of the mounting base (1). Fastening bolts 2 (11) are threaded to the top of the shock-absorbing component (9).

2. The milling machine transmission device according to claim 1, characterized in that: The mounting base (1) and the base (2) have the same thickness, and the mounting base (1), the base (2) and the L-shaped frame (3) are all made of aluminum alloy.

3. The milling machine transmission device according to claim 1, characterized in that: The tensioning assembly (6) consists of an L-shaped seat (61), a connecting rod (62), a mounting shaft (63), a tensioning wheel (64), and a wheel axle (65). The L-shaped seat (61) is bolted to the inside of the L-shaped frame (3). The connecting rod (62) is mounted on one side of the L-shaped seat (61) via the mounting shaft (63). The wheel axle (65) is mounted on the inside of the connecting rod (62). The tensioning wheel (64) is mounted on one end of the wheel axle (65). The tensioning wheel (64) is matched with the transmission belt (8).

4. A milling machine transmission device according to claim 1, characterized in that: The shock absorber assembly (9) is provided in four groups, symmetrically arranged on both sides above the mounting base (1), and the structure of each group of shock absorber assemblies (9) is the same.

5. A milling machine transmission device according to claim 1, characterized in that: The shock absorption assembly (9) is composed of two buffer plates (91) and four shock absorption rods (93). The four shock absorption rods (93) are symmetrically arranged between the two buffer plates (91). The upper part of the buffer plate (91) is provided with an installation groove (92). The installation groove (92) is threadedly connected to the fastening bolt (11). The shock absorption rod (93) is composed of a shock absorption spring and a damping rod.

6. A milling machine transmission device according to claim 1, characterized in that: There are four types of fastening bolts (11), and each set of fastening bolts (11) passes through the base (2) and is threadedly connected to the shock absorption assembly (9).

7. A milling machine transmission device according to claim 1, characterized in that: One end of the movable shaft (14) is connected to the second pulley (7), and the other end of the movable shaft (14) is connected to the milling drum reducer.

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