CN221120379U

CN221120379U - Locomotive urban rail ventilation machine accessory

Info

Publication number: CN221120379U
Application number: CN202323137173.1U
Authority: CN
Inventors: 董传宝; 王继胜; 李连坡; 郑建国; 赵燕波; 刘凯; 杜兆新; 赵伟
Original assignee: Zaozhuang Mining Group Xin'an Coal Industry Co ltd
Current assignee: Zaozhuang Mining Group Xin'an Coal Industry Co ltd
Priority date: 2023-11-21
Filing date: 2023-11-21
Publication date: 2024-06-11
Anticipated expiration: 2033-11-21

Abstract

The utility model relates to the technical field of underground local ventilators of coal mines, in particular to a locomotive urban rail ventilator fitting, which comprises a ventilator and a fixed connection device, wherein the fixed connection device is arranged at the lower side of the ventilator, a damping device is arranged at the lower side of the fixed connection device, the damping device consists of two groups of damping mechanisms, and the two groups of damping mechanisms are symmetrically and fixedly arranged at the bottom of the fixed connection device. The device can block the noise transmission of the local ventilator caused by vibration, reduce the noise at the ventilator and meet the requirement of the noise limit value of the coal mine operation place, is simple to install, can consume the vibration energy of an input structure, meets the requirement of expected vibration absorption and noise reduction, effectively reduces the noise emitted by the machine during the use period, and is an active, effective and economic structural vibration absorption and noise reduction means.

Description

Locomotive urban rail ventilation machine accessory

Technical Field

The utility model relates to the technical field of underground local ventilators of coal mines, in particular to a locomotive urban rail ventilator fitting.

Background

The local ventilator for supplying air to the tunneling working face of the coal mine is generally composed of two fans of a main machine and a standby machine, normally, the main machine works to supply air to the tunneling working face, the standby machine is standby, and double fans, double power supplies and automatic switching can be realized. The local ventilator is generally installed and fixed by a bracket on site, and the bracket is made of an iron pipe or angle iron and has no damping device, so that during the operation of the ventilator, the sound value near the ventilator is large due to resonance generated between the ventilator and the contact surface of the bracket, and the requirement of the ventilator is not met.

The local ventilator is one of main noise sources of mines, and the sound value of the local ventilator is often 100-110 dB (A), which greatly exceeds the noise allowable standard specified by the state. Noise pollution of underground local ventilators is a problem which is difficult to solve all the time, and the problem that a large amount of manpower and material resources are spent on research and solution of coal mines is very little. Therefore, a device with convenient processing and obvious effect is needed to reduce the noise of the local ventilator.

Disclosure of utility model

Aiming at the defects of the prior art, the utility model aims to provide a locomotive urban rail ventilator accessory, so as to solve the problems that the local ventilator provided in the background art generates larger noise when running, greatly exceeds the national noise allowable standard and does not meet the requirement.

In order to achieve the above object, the present utility model is realized by the following technical scheme: the utility model provides a locomotive city rail ventilation blower accessory, includes ventilation blower and fixed connection device, the ventilation blower downside is provided with fixed connection device, the fixed connection device downside is provided with damping device, damping device has two sets of damper to constitute, two sets of damper symmetry sets firmly in the fixed connection device bottom.

Further, the fixed connection device comprises a vertical support plate and a fixed bottom plate, wherein a plurality of groups of vertical support plates are arranged, the vertical support plates are welded and fixed on the lower side of the ring surface of the ventilator, and the fixed bottom plate is welded and fixed on the bottom of the vertical support plate.

Further, the damping mechanism comprises damping air bags, hydraulic damping columns and a fixed support, the fixed support is arranged on the lower side of the fixed connection device, two groups of damping air bags are symmetrically arranged on the upper side of the fixed support, and four groups of hydraulic damping columns are symmetrically arranged on the periphery of each group of damping air bags.

Further, the hydraulic damping column comprises rubber buffer head, hydraulic stem, damping spring and hydraulic cylinder, the hydraulic stem is assembled in the hydraulic cylinder is inside, hydraulic cylinder bottom and fixed bolster fixed connection, the hydraulic stem upper end is provided with the rubber buffer head, hydraulic cylinder anchor ring upside cover is equipped with damping spring, just damping spring is located between rubber buffer head and the hydraulic cylinder.

Further, the fixed bolster is trapezoidal desk-top structure, the welding of fixed bolster left and right sides has the mounting panel, the multiunit through-hole has been seted up to the mounting panel inside.

Further, be provided with the connection clamp plate on the PMKD, be provided with the rubber backing plate between connection clamp plate and the PMKD, connection clamp plate and the inside multiunit fastening bolt that is provided with of rubber backing plate, multiunit fastening bolt pass through connection clamp plate and rubber backing plate and are connected with shock attenuation gasbag and hydraulic damping post through the screw thread.

By adopting the technical scheme, the utility model has the beneficial effects that:

The device can block the noise transmission of the local ventilator caused by vibration, reduce the noise at the ventilator and meet the requirement of the noise limit value of the coal mine operation place, is simple to install, can consume the vibration energy of an input structure, meets the requirement of expected vibration absorption and noise reduction, effectively reduces the noise emitted by the machine during the use period, and is an active, effective and economic structural vibration absorption and noise reduction means.

1. The device is simple to process, and the labor intensity of personnel is reduced.

2. The normal work of the local ventilator is not influenced by the convenient installation.

3. The fan is safe and reliable, and the displacement fan is reduced and is firmer during the operation of the fan.

4. The noise pollution of the local ventilator is treated, the silencing effect is obvious, and the standard requirement can be met.

5. After installation, the noise is reduced to below 75dB (A), the on-site working face environment is improved, and the requirements of occupational health are met.

Drawings

Other features, objects and advantages of the present utility model will become more apparent upon reading of the detailed description of non-limiting embodiments, given with reference to the accompanying drawings in which:

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a schematic structural view of a fixing and connecting device and a damping device according to the present utility model;

FIG. 3 is a schematic view of a shock absorbing mechanism according to the present utility model;

fig. 4 is a schematic structural view of a hydraulic damping column according to the present utility model.

In the figure: 1. a ventilator; 2. a fixed connection device; 21. a vertical support plate; 22. a fixed bottom plate; 23. connecting a pressing plate; 24. a rubber backing plate; 25. a fastening bolt; 3. a damping device; 31. a damping mechanism; 311. a shock absorbing air bag; 312. a hydraulic damping column; 3121. a rubber buffer head; 3122. a hydraulic rod; 3123. a damping spring; 3124. a hydraulic cylinder; 313. a fixed bracket; 314. a mounting plate; 3141. and a through hole.

Detailed Description

The utility model is further described in connection with the following detailed description, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the utility model easy to understand.

Referring to fig. 1-4, the present utility model provides a technical solution: the utility model provides a locomotive city rail ventilation blower accessory, includes ventilation blower 1 and fixed connection device 2, and ventilation blower 1 downside is provided with fixed connection device 2, and fixed connection device 2 downside is provided with damping device 3, and damping device 3 has two sets of damper 31 to constitute, and two sets of damper 31 symmetry set firmly in fixed connection device 2 bottoms, and the noise that produces when this design has solved colliery underground local ventilation blower 1 operation is great, has exceeded the noise permission standard of national regulation greatly, does not accord with the problem of regulation requirement.

The fixed connection device 2 comprises a vertical support plate 21 and a fixed bottom plate 22, wherein a plurality of groups of vertical support plates 21 are arranged, the vertical support plates are welded and fixed on the lower side of the annular surface of the ventilator 1, and the fixed bottom plate 22 is welded and fixed at the bottom of the vertical support plates 21. The fixed connection device 2 is used for fixedly connecting the ventilator 1. The vertical support plate 21 and the fixing base plate 22 are generally made of a metal material, and have sufficient strength and stability. The multiple sets of vertical support plates 21 can provide better supporting and fixing effects, and ensure the stability and safety of the ventilator 1. The welded fastening of the fastening plate 22 ensures the firmness and stability of the connecting device 2 against loosening or displacement.

The damping mechanism 31 comprises damping air bags 311, hydraulic damping columns 312 and a fixed support 313, the fixed support 313 is arranged on the lower side of the fixed connection device 2, two groups of damping air bags 311 are symmetrically arranged on the upper side of the fixed support 313, and four groups of hydraulic damping columns 312 are symmetrically arranged on the periphery of each group of damping air bags 311. Vibration and impact generated in the operation process of the ventilator 1 can be reduced through the damping mechanism 31, and the stability and the working effect of the ventilator can be improved. The damper air bag 311 is an elastic air bag for absorbing and reducing vibration and shock of the ventilator 1. The hydraulic damping column 312 can increase the damping effect and improve the stability and the operation efficiency of the ventilator 1.

The hydraulic damping column 312 is composed of a rubber buffer head 3121, a hydraulic rod 3122, a damping spring 3123 and a hydraulic cylinder 3124, wherein the hydraulic rod 3122 is assembled inside the hydraulic cylinder 3124, the bottom of the hydraulic cylinder 3124 is fixedly connected with the fixed support 313, the rubber buffer head 3121 is arranged at the upper end of the hydraulic rod 3122, the damping spring 3123 is sleeved at the upper side of the annular surface of the hydraulic cylinder 3124, and the damping spring 3123 is positioned between the rubber buffer head 3121 and the hydraulic cylinder 3124. The rubber buffer head 3121 has good elasticity and buffer performance, and is located at the upper end of the hydraulic rod 3122 for absorbing and damping vibration and impact generated from the ventilator 1. The hydraulic stem 3122 can provide a damping effect when the ventilator 1 vibrates, reducing vibration transmission, by being assembled inside the hydraulic cylinder 3124.

The fixing support 313 is of a trapezoid desk type structure, mounting plates 314 are welded on the left side and the right side of the fixing support 313, and a plurality of groups of through holes 3141 are formed in the mounting plates 314. The fixing bracket 313 of the trapezoidal table structure has good stability and bearing capacity, and can effectively support and fix the ventilator 1 and the damper mechanism 31. The fixing bracket 313 is easily installed and fixed by the installation plate 314 and the through hole 3141.

The connecting pressing plate 23 is arranged on the fixed bottom plate 22, the rubber base plate 24 is arranged between the connecting pressing plate 23 and the fixed bottom plate 22, a plurality of groups of fastening bolts 25 are arranged inside the connecting pressing plate 23 and the rubber base plate 24, and the plurality of groups of fastening bolts 25 penetrate through the connecting pressing plate 23 and the rubber base plate 24 and are connected with the damping air bags 311 and the hydraulic damping columns 312 through threads. Such a design and assembly effectively connects the shock absorbing bladder 311 and the hydraulic damping cylinder 312 with the fixed base plate 22 and provides additional shock absorbing effect through the rubber pad 24. The use of multiple sets of fastening bolts 25 ensures the firmness and stability of the connection so that the entire shock absorbing system can work effectively.

As an embodiment of the present utility model: when in actual use, the device is transported to a use place, then the fixing support 313 is fixed on the bottom surface through the expansion bolts, the fixing bottom plate 22 of the ventilator 1 is fixedly arranged on the damping mechanism 31 through the fastening bolts 25, vibration generated when the ventilator 1 operates can be absorbed and consumed through the plurality of groups of damping air bags and the hydraulic damping columns 312, vibration generated by the ventilator 1 is damped, noise generated when the ventilator 1 operates can be reduced due to the fact that noise is generated by vibration, noise transmission of the local ventilator 1 due to vibration is prevented, noise at the ventilator 1 is reduced, and the requirement of a noise limit value of a coal mine operation place is met.

While the fundamental and principal features of the utility model and advantages of the utility model have been shown and described, it will be apparent to those skilled in the art that the utility model is not limited to the details of the foregoing exemplary embodiments, but may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.

Claims

1. The utility model provides a locomotive city rail ventilation blower accessory, includes ventilation blower (1) and fixed connection device (2), its characterized in that: the ventilator is characterized in that a fixed connection device (2) is arranged on the lower side of the ventilator (1), a damping device (3) is arranged on the lower side of the fixed connection device (2), the damping device (3) is composed of two groups of damping mechanisms (31), and the two groups of damping mechanisms (31) are symmetrically and fixedly arranged at the bottom of the fixed connection device (2).

2. The locomotive urban rail ventilator accessory of claim 1, wherein: the fixed connection device (2) comprises vertical support plates (21) and a fixed bottom plate (22), wherein a plurality of groups of vertical support plates (21) are arranged, the vertical support plates are fixedly welded on the lower side of the annular surface of the ventilator (1), and the fixed bottom plate (22) is fixedly welded on the bottom of each vertical support plate (21).

3. The locomotive urban rail ventilator accessory of claim 1, wherein: the damping mechanism (31) comprises damping air bags (311), hydraulic damping columns (312) and a fixed support (313), the fixed support (313) is arranged on the lower side of the fixed connection device (2), two groups of damping air bags (311) are symmetrically arranged on the upper side of the fixed support (313), and four groups of hydraulic damping columns (312) are symmetrically arranged on the periphery of each damping air bag (311).

4. A locomotive urban rail ventilator accessory as defined in claim 3, wherein: the hydraulic damping column (312) is composed of a rubber buffer head (3121), a hydraulic rod (3122), a damping spring (3123) and a hydraulic cylinder (3124), wherein the hydraulic rod (3122) is assembled inside the hydraulic cylinder (3124), the bottom of the hydraulic cylinder (3124) is fixedly connected with a fixed support (313), the rubber buffer head (3121) is arranged at the upper end of the hydraulic rod (3122), the damping spring (3123) is sleeved on the upper side of the annular surface of the hydraulic cylinder (3124), and the damping spring (3123) is positioned between the rubber buffer head (3121) and the hydraulic cylinder (3124).

5. A locomotive urban rail ventilator accessory as defined in claim 3, wherein: the fixing support (313) is of a trapezoid desk type structure, and mounting plates (314) are welded on the left side and the right side of the fixing support (313).

6. The locomotive urban rail ventilator accessory of claim 2, wherein: the connecting pressing plate (23) is arranged on the fixed bottom plate (22), and a rubber backing plate (24) is arranged between the connecting pressing plate (23) and the fixed bottom plate (22).

7. The locomotive urban rail ventilator assembly of claim 6, wherein: the connecting pressing plate (23) and the rubber backing plate (24) are internally provided with a plurality of groups of fastening bolts (25), and the fastening bolts (25) penetrate through the connecting pressing plate (23) and the rubber backing plate (24) and are connected with the damping air bags (311) and the hydraulic damping columns (312) through threads.

8. The locomotive urban rail ventilator assembly of claim 5, wherein: a plurality of groups of through holes (3141) are formed in the mounting plate (314).