Driving connecting device of stabilized soil stirring main machine

Abstract

The utility model relates to the field of engineering equipment, in particular to a driving connecting device of a stabilized soil stirring main machine, which comprises a chain wheel coupling and a cooling protective cover, the chain wheel coupling is connected between the stirring main machine and a driving unit, and the cooling protective cover is provided with a first cover body and a second cover body which can be spliced into a circular ring-shaped sleeve. The first cover body and the second cover body are each provided with a closed cavity, the first cover body and the second cover body are each provided with an air inlet pipe and an air blowing hole, the cooling protective cover is connected to the periphery of the chain wheel coupler in a sleeving mode, and a gap allowing air to flow is formed between the cooling protective cover and the chain wheel coupler. The air blowing holes in the cooling protective cover can blow cold air to the chain wheel coupler to cool the chain wheel coupler, and hot air generated when the chain wheel coupler is cooled can be exhausted outwards from the gap between the cooling protective cover and the chain wheel coupler. The driving connecting device of the stabilized soil stirring main machine is improved, so that the processing and mounting cost can be reduced, and the service life of equipment can be prolonged.

Description

Technical Field

[0001] The utility model relates to the field of engineering equipment, in particular to a driving connection device of a main machine for stabilizing soil mixing. Background Art

[0002] The stabilized soil mixing main unit is a key component used in road construction machinery and equipment for mixing stabilized soil. Since the mixing of stabilized soil is a high-power forced mixing, the mixing shaft requires a large driving torque and the working environment is harsh. Therefore, the current mixing main unit's mixing shaft and the reducer of the drive unit mostly use a direct connection by directly plugging the input end of the mixing shaft into the hollow output shaft of the reducer, and connecting the mixing main unit and the drive motor together through a direct connection without a coupling. Although the direct connection without a coupling can achieve high-power forced mixing, the direct connection without a coupling has high requirements for the concentricity between the center of the mixing shaft and the output shaft of the reducer, which will increase the difficulty of processing and installation and increase the manufacturing cost of the equipment; in addition, since there is no buffering and overload protection of the coupling, it is easy to cause drive failures and affect the life of the equipment. Although sprocket couplings are also used in mixing equipment in other fields to reduce the difficulty of processing and installation, most of them do not take into account the certain gap between the two sprockets of the sprocket coupling and between the sprocket and the chain. The influence of factors such as high-speed rotation, uneven impact and frequent start and stop when the mixing host is working, and dust and debris in harsh environments will cause the sprockets and chains to rub against each other and frequently impact, generating a large amount of heat, making the chain teeth easily deformed and ineffective due to heat. If they are not cooled down in time, their service life will be affected. Especially in stable soil mixing equipment with high-power forced mixing and harsh environment, if the connection method between the mixing host and the drive motor can be improved, if a sprocket coupling connection device with cooling and protection functions can be used for connection, to achieve buffer protection and heat dissipation, to improve the service life of the equipment and reduce processing and installation costs, it is a problem to be solved in this case. Utility Model Content

[0003] In order to overcome the deficiencies in the prior art, the utility model discloses a driving connection device for a stabilized soil mixing main machine, including a sprocket coupling and a cooling protective cover, the cooling protective cover is provided with a first cover body and a second cover body which can be assembled into an annular sleeve, the first cover body and the second cover body respectively have a closed cavity, an air inlet pipe and an air blowing hole are provided on the first cover body and the second cover body, the cooling protective cover is sleeved on the periphery of the sprocket coupling and a gap is provided between the cooling protective cover and the sprocket coupling to allow air to flow, the air blowing holes on the cooling protective cover can blow cold air to the sprocket coupling for cooling the sprocket coupling, and the hot air generated when the sprocket coupling is cooled can be discharged outwardly from the gap between the cooling protective cover and the sprocket coupling. The utility model improves the driving connection device of the stabilized soil mixing main machine, connects the sprocket coupling as a large torque transmission component between the mixing main machine and the driving unit, and is sleeved on the outer periphery of the sprocket coupling with a cooling protection cover which can continuously blow cold air thereto. The flexible buffer of the sprocket coupling can reduce the direct impact on the driving unit and the difficulty of installation during mixing, and the cold air and protection provided by the cooling protection cover can cool the sprocket coupling and resist the influence of harsh environment on the inside of the sprocket coupling, thereby reducing the processing and installation costs and increasing the service life of the equipment.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0005] A driving connection device for a stabilized soil mixing main machine comprises a sprocket coupling, the sprocket coupling is placed between the stabilized soil mixing main machine and the driving unit, and connects the mixing shaft of the mixing main machine with the output shaft of the reducer of the driving unit, and is characterized in that it also includes a cooling protective cover, the cooling protective cover is provided with a two-piece wind sleeve cover that can be assembled into a circular ring-shaped cover, the two-piece wind sleeve cover is correspondingly provided with a first cover body and a second cover body, the first cover body and the second cover body each have a closed cavity, an air inlet pipe and an air blowing hole are provided on the first cover body and the second cover body, the air inlet pipe can be connected to an external air cooler through a pipeline, the cooling protective cover is sleeved on the periphery of the sprocket coupling and a gap is provided between the cooling protective cover and the sprocket coupling to allow wind to flow, the air blowing hole on the cooling protective cover can blow cold air to the sprocket coupling for cooling the sprocket coupling, and the hot air generated when the sprocket coupling is cooled can be discharged outward from the gap between the cooling protective cover and the sprocket coupling.

[0006] The cooling protection cover comprises a first air sleeve cover and a second air sleeve cover locked on one side of the first air sleeve cover, and the first air sleeve cover and the second air sleeve cover are respectively provided with a first cover body and a second cover body.

[0007] The first cover body and the second cover body are two symmetrical semicircular cavities that are closed respectively. The first cover body and the second cover body are arranged opposite to each other, and the first cover body and the second cover body can be assembled into a complete annular sleeve.

[0008] The axial split surfaces of the first cover body and the second cover body are both concave-shaped, and a plurality of blowing holes are dispersedly provided on the walls of their respective grooves. The first cover body and the second cover body are each provided with an air inlet pipe, and each air inlet pipe is fixedly connected to the outer side walls of the first cover body and the second cover body respectively and is connected to the cavities of the first cover body and the second cover body respectively.

[0009] The first air sleeve cover is provided with a support at the bottom of the first cover body and an ear plate at the top. The support and the ear plate are both vertically fixed on the first cover body and are both flush with the side plane of the first cover body. The side plane is the joining surface when the first air sleeve cover and the second air sleeve cover are assembled. The support of the first air sleeve cover is fixed on the frame of the mixing main unit.

[0010] The second air sleeve is provided with ear plates at the bottom and top of the second cover body respectively. The ear plates are vertically fixed to the second cover body and flush with the side plane of the second cover body. The side plane is the joint surface when the second air sleeve is assembled with the first air sleeve.

[0011] The sprocket coupling comprises a first sprocket, a second sprocket and a chain. The shape, size and number of the sprocket teeth of the first sprocket and the second sprocket are the same. The first sprocket is concentric with the second sprocket and the sprocket teeth of the two are adjacent. The chain is a double-row roller chain, which is connected end to end to form a ring. The ring-shaped chain is tightly fitted on the sprocket teeth of the first sprocket and the second sprocket at the same time.

[0012] From the above description, it can be seen that the advantages of the driving connection device of the stabilized soil mixing main machine provided by the utility model are: first, the sprocket coupling is connected between the mixing main machine and the driving unit as a large torque transmission component, and the flexible buffer of the sprocket coupling can reduce the direct impact on the driving unit during mixing and the difficulty of installation; second, a cooling protective cover that can continuously blow cold air to the sprocket coupling is sleeved on the periphery of the sprocket coupling, and the cold air and protection provided by the cooling protective cover can be used to cool the sprocket coupling and resist the influence of harsh environment on the inside of the sprocket coupling. The utility model can reduce the processing and installation costs and increase the service life of the equipment by improving the driving connection device of the stabilized soil mixing main machine. The utility model has a reasonable design, a simple structure, low cost, and is easy to promote. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a general schematic diagram of a driving connection device of a soil stabilizing mixing main machine described in the utility model;

[0014] Figure 2 for Figure 1 AA schematic diagram in;

[0015] Figure 3 is an enlarged schematic diagram of the first wind cover;

[0016] Figure 4 is an enlarged schematic diagram of the second wind cover;

[0017] Figure 5 is an enlarged schematic diagram of the first sprocket;

[0018] Figure 6 This is a schematic diagram of the positional relationship of the connecting device installed between the mixing host and the driving unit.

[0019] Reference numerals:

[0020] 1 sprocket coupling; 11 first sprocket; 12 second sprocket; 13 chain; 2 cooling protection cover; 21 first air sleeve cover; 211 first cover body; 212 support; 01 air inlet pipe; 02 ear plate; 03 air blowing hole; 22 second air sleeve cover; second cover body; 800 mixing host; 900 driving unit. DETAILED DESCRIPTION

[0021] The present invention is further described below through specific implementation methods.

[0022] like Figures 1 to 6 As shown, the driving connection device of the stabilized soil mixing main machine described in the utility model comprises a sprocket coupling 1 and a cooling protective cover 2. The sprocket coupling 1 comprises a first sprocket 11, a second sprocket 12 and a chain 13. The shape, size and number of the sprocket teeth of the first sprocket 11 and the second sprocket 12 are the same. The first sprocket 11 and the second sprocket 12 are concentric and the sprocket teeth of the two are adjacent. The chain 13 is a double-row roller chain. The chain 13 is connected end to end to form a ring. The ring-shaped chain 13 is tightly sleeved on the sprocket teeth of the first sprocket 11 and the second sprocket 12 at the same time. The sprocket coupling 1 is placed between the stabilized soil mixing main machine 800 and the driving unit 900, and connects the mixing shaft of the mixing main machine 800 with the output shaft of the reducer of the driving unit 900. The cooling protective cover 2 includes a first air sleeve 21 and a second air sleeve 22 locked on one side of the first air sleeve 21. The first air sleeve 21 and the second air sleeve 22 are respectively provided with a first cover body 211 and a second cover body 221. The first cover body 211 and the second cover body 221 each have a closed cavity. The first cover body 211 and the second cover body 221 are both provided with an air inlet pipe 01 and a blowing hole 03. The air inlet pipe 01 can be connected with an external air cooler through a pipeline. The cooling protective cover 2 is sleeved on the periphery of the sprocket coupling 1 and a gap is provided between the cooling protective cover 2 and the sprocket coupling 1 to allow air to flow. The blowing hole 03 on the cooling protective cover 2 can blow cold air to the sprocket coupling 1 for cooling the sprocket coupling 1. The hot air generated when the sprocket coupling 1 is cooled can be discharged outward from the gap between the cooling protective cover 2 and the sprocket coupling 1.

[0023] like Figures 1 to 4As shown, the first cover body 211 and the second cover body 221 of the utility model are two symmetrical semicircular cavities that are closed respectively. The first cover body 211 and the second cover body 221 are arranged opposite to each other, and the first cover body 211 and the second cover body 221 can be assembled into a complete annular sleeve. The axial section surfaces of the first cover body 211 and the second cover body 221 are both concave, and a plurality of blowing holes 03 are dispersedly arranged on the walls of the respective grooves. The first cover body 211 and the second cover body 221 are each provided with an air inlet pipe 01, and the air inlet pipe 01 is fixedly connected to the outer side walls of the first cover body 211 and the second cover body 221 respectively and communicated with the cavities of the first cover body 211 and the second cover body 221 respectively. The first air sleeve 21 is provided with a support 212 at the bottom of the first cover body 211 and an ear plate 02 at the top. The support 212 and the ear plate 02 are both vertically fixed on the first cover body 211 and are flush with the side plane of the first cover body 211. The side plane is the joint surface when the first air sleeve 21 and the second air sleeve 22 are assembled. The support 212 of the first air sleeve 21 is fixed to the frame of the mixing host 800. The second air sleeve 22 is provided with ear plates 02 at the bottom and top of the second cover body 221 respectively. The ear plates 02 are vertically fixed on the second cover body 221 and are flush with the side plane of the second cover body 221. The side plane is the joint surface when the second air sleeve 22 and the first air sleeve 21 are assembled.

[0024] The utility model improves the driving connection device of the stabilized soil mixing main machine, connects the sprocket coupling 1 as a large torque transmission component between the mixing main machine 800 and the driving unit 900, and is sleeved on the outer periphery of the sprocket coupling 1 with a cooling protective cover 2 that can continuously blow cold air thereto. The flexible buffer of the sprocket coupling 1 can reduce the direct impact on the driving unit 900 and the difficulty of installation during mixing, and the cold air and protection provided by the cooling protective cover 2 can cool the sprocket coupling 1 and resist the influence of the harsh environment on the inside of the sprocket coupling 1, thereby reducing the processing and installation costs and increasing the service life of the equipment.

[0025] The above is only a specific embodiment of the present utility model, but the design concept of the present utility model is not limited to this. Any non-substantial changes to the present utility model using this concept shall be deemed as an infringement of the protection scope of the present utility model.

Claims

1. A driving connection device for a stabilized soil mixing main machine, comprising a sprocket coupling (1), the sprocket coupling (1) being disposed between the stabilized soil mixing main machine (800) and a driving unit (900), and connecting a mixing shaft of the mixing main machine (800) with an output shaft of a reducer of the driving unit (900), characterized in that: It also includes a cooling protective cover (2), wherein the cooling protective cover (2) is provided with two wind covers that can be assembled into a circular ring, and the two wind covers are respectively provided with a first cover body (211) and a second cover body (221), and the first cover body (211) and the second cover body (221) each have a closed cavity, and an air inlet pipe (01) and a blowing hole (03) are provided on the first cover body (211) and the second cover body (221), and the cooling protective cover (2) is sleeved on the periphery of the sprocket coupling (1) and a gap is provided between the cooling protective cover (2) and the sprocket coupling (1) to allow air to flow, and the blowing hole (03) on the cooling protective cover (2) can blow cold air to the sprocket coupling (1).

2. The driving connection device of the main machine for stabilizing soil mixing according to claim 1, characterized in that: The cooling protection cover (2) comprises a first air sleeve cover (21) and a second air sleeve cover (22) locked on one side of the first air sleeve cover (21), and the first air sleeve cover (21) and the second air sleeve cover (22) are respectively provided with a first cover body (211) and a second cover body (221).

3. The driving connection device of the main machine for stabilizing soil mixing according to claim 2, characterized in that: The first cover body (211) and the second cover body (221) are two symmetrical, semicircular cavities that are closed respectively. The first cover body (211) and the second cover body (221) are arranged opposite to each other. The first cover body (211) and the second cover body (221) can be assembled into a complete annular sleeve.

4. The driving connection device of the main machine for stabilizing soil mixing according to claim 3, characterized in that: The axial section surfaces of the first cover body (211) and the second cover body (221) are both in a concave shape, and a plurality of blowing holes (03) are dispersedly arranged on the walls of the respective grooves. The first cover body (211) and the second cover body (221) are each provided with an air inlet pipe (01), and the respective air inlet pipe (01) is fixedly connected to the outer side wall of the respective first cover body (211) and the second cover body (221) and is connected to the cavity of the respective first cover body (211) and the second cover body (221).

5. The driving connection device of the main machine for stabilizing soil mixing according to claim 4, characterized in that: The first wind sleeve cover (21) is provided with a support (212) at the bottom of the first cover body (211) and an ear plate (02) at the top; the support (212) and the ear plate (02) are both vertically fixed on the first cover body (211) and are both flush with the side plane of the first cover body (211); the side plane is the joint surface when the first wind sleeve cover (21) and the second wind sleeve cover (22) are assembled.

6. The driving connection device of the main machine for stabilizing soil mixing according to claim 5, characterized in that: The second air sleeve hood (22) is provided with ear plates (02) at the bottom and top of the second cover body (221), respectively. The ear plates (02) are vertically fixed to the second cover body (221) and are flush with the side plane of the second cover body (221), and the side plane is the joint surface when the second air sleeve hood (22) and the first air sleeve hood (21) are assembled.

7. The driving connection device of the main machine for stabilizing soil mixing according to claim 1, characterized in that: The sprocket coupling (1) comprises a first sprocket (11), a second sprocket (12) and a chain (13); the shape, size and number of the sprocket teeth of the first sprocket (11) and the second sprocket (12) are the same; the first sprocket (11) and the second sprocket (12) are concentric and the sprocket teeth of the two are adjacent; the chain (13) is a double-row roller chain; the chain (13) is connected end to end to form a ring; the ring-shaped chain (13) is tightly sleeved on the sprocket teeth of the first sprocket (11) and the second sprocket (12) at the same time.

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