CN221282956U - Vibration-damping anti-slip device for mounting heavy-mass motor - Google Patents

Abstract

The utility model discloses a vibration-damping and anti-slip device for installing a heavy-weight motor, which consists of an upper part, a middle part and a lower part, wherein the upper part structure consists of a connecting plate, the lower part structure consists of a base mounting plate, an anti-slip vibration-damping pad and a connecting cushion block, the middle part structure consists of two bidirectional cylinder type vibration dampers and vibration-damping springs sleeved outside the two bidirectional cylinder type vibration dampers, so that the vibration-damping effect on a high-power direct-current motor can be enhanced, and the practicability is higher; when the motor vibrates, the piston rod can be driven to move up and down, and then the piston can also move up and down, so that liquid filled in the cavity enters and exits the rod cavity through the respective damping holes, the rebound side effect of the damping spring is restrained, and the purposes of absorbing vibration and relieving impact can be achieved.

Description

Vibration-damping anti-slip device for mounting heavy-mass motor

Technical Field

The utility model relates to a passenger-cargo vehicle vibration damping device, in particular to a vibration damping and anti-slip device for installing a heavy-mass motor.

Background

In order to prevent a series of resonance and other problems caused by long-time vibration of a vehicle in running, an installation vibration-proof mechanism with a large motor is designed, a motor main body is arranged on a subframe or other assembly parts (a main reducer shell bracket), an integral electric reduction drive axle used on the passenger car and the freight car is arranged on a front-rear drive half shaft sleeve shell and is easy to be interfered by external severe environment changes, and the motor possibly causes the following changes:

Firstly, the vibration of the vehicle body (the vehicle frame) can directly damage the bearing at the motor, so that the abrasion of the motor bearing is quickened, the service life of the motor bearing is greatly shortened, and the efficiency of the motor is also reduced;

Secondly, vibration of a vehicle body (a vehicle frame) can cause looseness of magnetic poles of a motor rotor, so that the stator and the rotor are rubbed with each other, and the rotor can be bent or broken when serious;

Thirdly, the vibration of the vehicle body can lead to loosening of some mechanical parts, so that insulation resistance is reduced to a certain extent, and potential safety hazard problems can be generated for the motor. For a traditional fuel-powered vehicle, the engine is the heart of the vehicle, and the motor is of no doubt critical importance for a pure electric vehicle.

Therefore, the damage to the motor caused by frequent vibration from the road surface needs to be solved, and some vibration reduction technologies conventionally adopted at present are as follows:

1. Some utilize the elastic deformation effect of damping spring and buffer spring, realize the buffering and weakening to vibration. Although the method can reduce the vibration amplitude of the motor to a certain extent, the influence of the self resilience of the damping spring on the vibration of the frame and the motor is not considered.

2. There is the researcher to design a motor vibration damper, utilizes two damping plates that set up to cooperate a plurality of damping pad to reduce the produced vibration of motor body during operation to improve motor body job stabilization nature. However, the vibration damping plate and the vibration damping pad have limited functions for reducing the vibration of the motor, and may not meet the requirements under some working conditions.

3. The motor mounting seat is fixed on the mounting plate by adopting a detachable fixing plate, the fixing plate further reinforces the mounting seat of the motor through a first bolt and a second bolt, the contact stress area of the mounting seat and the mounting plate is increased, and the technical problems that vibration is easy to crack and the like caused by small stress points when a screw rod is fixed in the prior art are solved. The method is simple and the vibration reduction effect is not obvious.

The prior art generally aims at reducing the vibration of a motor by adding a certain number of vibration reduction pads, vibration reduction plates or by utilizing springs to absorb the vibration energy generated in the running process of the automobile, and slowly releasing the vibration energy during rebound. The mounting structure with strong pertinence is adopted, so that the motor is prevented from loosening to generate vibration. Although the motor vibration can be reduced to a certain extent by the methods, the vibration reduction effect is not obvious.

Disclosure of utility model

The utility model aims to overcome the defects in the prior art and provide a vibration damper for avoiding the new problem of rebound caused by the installation of a vibration damper spring.

In order to achieve the aim, the utility model provides a vibration reduction and anti-slip device for installing a heavy-weight motor, which comprises a base mounting plate, wherein an anti-slip rubber pad is embedded below the base mounting plate, a mounting groove connected with the motor is formed in the base mounting plate, the base mounting plate is provided with a bidirectional cylinder type vibration damper which is connected with the motor in a connecting mode, and the upper end of the bidirectional cylinder type vibration damper is sleeved with a vibration reduction spring and is connected with a frame through a connecting plate;

The bidirectional cylinder type shock absorber comprises a shock absorber cylinder body, a piston plate which is horizontally arranged is arranged in the shock absorber cylinder body, the piston plate divides the space in the shock absorber cylinder body into a rodless cavity and a rod cavity, a piston rod connected with the piston plate is arranged in the rod cavity, a shock absorption spring is sleeved outside the piston rod and is matched with the piston rod to be connected with a connecting plate, and an anti-slip rubber pad can reduce the vibration of the motor in the vertical direction and limit the relative movement amount of the whole transverse horizontal direction, reduce the friction between the piston plate and the piston rod, and improve the efficiency of the shock absorber.

According to the vibration reduction anti-slip device for installing the heavy-mass motor, which is described based on the scheme, further, the connecting cushion blocks connected with the motor installing support are embedded in the installing groove, two connecting cushion blocks are arranged and symmetrically arranged on two sides of the bidirectional cylinder type vibration damper, and the motor and the base installing plate are connected through the connecting cushion blocks.

According to the vibration reduction anti-slip device for installing the heavy-mass motor, which is described by the scheme, further, the connecting cushion block comprises a cushion block main body, a cavity is formed in the cushion block main body, high-viscosity silicone oil is fully distributed in the cavity, threaded holes for the connecting bolts to penetrate are formed in two ends of the cushion block main body, the cushion block main body is detachably fixed on the base mounting plate through the connecting bolts, and a part of vibration energy can be absorbed through the high-viscosity silicone oil when the motor and the vehicle body rotate.

According to the vibration reduction and anti-slip device for installing the heavy-mass motor, which is described based on the scheme, further, threads are engraved at the upper end of the piston rod, and the threads penetrate through holes formed in the connecting plates to be matched with nuts, so that the aim of limiting the maximum vibration displacement of the motor is achieved.

According to the vibration reduction and anti-slip device for mounting the heavy-mass motor, which is described based on the scheme, further, the rodless cavity is filled with silicone oil, the mixture of the silicone oil and the gas is filled in the rod cavity, specifically, the silicone oil with the damping and vibration absorption effects is stored in the rodless cavity, and a small amount of silicone oil and a certain amount of gas are stored in the rod cavity.

According to the vibration reduction and anti-slip device for installing the heavy-mass motor, further, the damping holes are symmetrically formed in the two ends of the piston plate, the piston rod and the piston are driven to move by up-and-down vibration of the vehicle body, and the rapid vibration of the piston is restrained due to the effect of the damping holes, so that the effect of absorbing vibration energy is achieved.

According to the vibration reduction and anti-slip device for installing the heavy-mass motor, which is described based on the scheme, further, the bottom of the shock absorber cylinder body is welded on the base mounting plate, and the end cover is arranged at the upper end part of the shock absorber cylinder body to play a role in sealing the cavity.

According to the vibration reduction anti-slip device for installing the heavy-mass motor, which is described by the scheme, further, the lower end of the anti-slip rubber pad is provided with the uniformly distributed groove structure, so that the anti-slip rubber pad is convenient to process and manufacture, can be strongly adsorbed on the surface of a frame to be installed, can generate tiny transverse movement along with the vibration of the motor main body, and can bear the shearing force in the horizontal direction.

The beneficial effects of the utility model are as follows:

1. The vibration-damping and anti-slip device for mounting the heavy-mass motor consists of an upper part, a middle part and a lower part, wherein the upper part structure consists of a connecting plate, the lower part structure consists of a base mounting plate, an anti-slip vibration-damping pad and a connecting cushion block, the middle part structure consists of two bidirectional cylinder type vibration dampers and vibration-damping springs sleeved on the two bidirectional cylinder type vibration dampers, the design can comprehensively strengthen the vibration-damping effect on the motor, and the practicability is higher;

2. When the motor vibrates, the piston rod is driven to move up and down, and then the piston also moves up and down, so that liquid filled in the cavity enters and exits the rod cavity through the respective damping holes, thereby inhibiting the rebound side effect of the damping spring, and simultaneously achieving the purposes of absorbing vibration and relieving impact;

3. The damping spring is sleeved on the outer side of the piston rod in the bidirectional cylinder type damper, so that the installation space can be reduced, the whole device is compact in arrangement, the upper end of the piston rod is connected with the connecting plate and integrally connected with the frame, and the damping spring can bear part of the weight of the motor and the damping device and transmit force and moment generated by vibration to the frame;

4. The device has simple structure, is convenient to detach, and the anti-skid pad and the connecting cushion block can be replaced at any time, thereby being beneficial to long-term use and being capable of reducing cost;

5. The device can bear external force in the vertical direction and also can bear external force in the horizontal direction, namely, can bear external force from all directions.

Drawings

FIG. 1 is a front view of a vibration damping and anti-slip device for mounting a heavy-weight motor provided by an embodiment of the present utility model;

FIG. 2 is a side view of a vibration damping and anti-slip device for mounting a heavy-weight motor according to an embodiment of the present utility model;

FIG. 3 is a schematic structural view of a two-way tube shock absorber;

Fig. 4 is a schematic structural view of the connection pad.

The components of the drawings are marked as follows:

1-a base mounting plate; 2-an anti-skid rubber pad; 3-connecting cushion blocks; 4-a bidirectional cylinder type shock absorber; 5-a vibration damping spring; 6-a motor; 7-connecting plates; 8-a frame; 9-a motor;

31-high viscosity silicone oil; 32-a connection block body; 33-connecting bolts;

41-a damper cylinder; 42-a piston plate; 43-rodless cavity; 44-a damping hole; 45-a rod cavity; 46-end caps; 47-piston rod.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present utility model more clear, the technical solutions of the embodiments 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. It will be apparent that the described embodiments are some, but not all, embodiments of the utility model. All other embodiments, which are obtained by a person skilled in the art based on the described embodiments of the utility model, fall within the scope of protection of the utility model.

Example 1

As shown in fig. 1 to 3, a vibration-damping anti-slip device for installing a heavy-weight motor comprises a base installation plate 1, wherein an anti-slip rubber pad 2 is embedded below the base installation plate 1, an installation groove connected with a motor 6 is formed in the base installation plate 1, a bidirectional cylinder type vibration damper 4 is installed on the base installation plate 1 to be connected, a vibration-damping spring 5 is sleeved at the upper end of the bidirectional cylinder type vibration damper 4, and the bidirectional cylinder type vibration damper is connected with a frame 8 through a connecting plate 7;

The bidirectional cylinder type shock absorber 4 comprises a shock absorber cylinder 41, a piston plate 42 horizontally arranged is arranged in the shock absorber cylinder 41, the piston plate 42 divides the space in the shock absorber cylinder 41 into a rodless cavity 43 and a rod cavity 45, a piston rod 47 connected with the piston plate 42 is arranged in the rod cavity 45, the piston rod 4 is prolonged, a shock absorption spring 5 is sleeved on the outer side of the piston rod 4, the piston rod 47 is connected with a connecting plate 7 after being matched, at the moment, the piston rod 47 also plays a role of a guide post, and a group of bidirectional cylinder type shock absorbers 4 can be arranged in front, back or left and right of the device and are symmetrically distributed, wherein the connecting plate 7 can move up and down along the piston rod 47.

It should be noted that, the upper end surface of the anti-slip rubber pad 2 must not exceed the height of one half of the base mounting plate, and the size of the anti-slip rubber pad 2 needs to be larger than the top projection area of the motor 6.

In this embodiment, as can be seen from fig. 1 and 4, the connecting cushion block 3 connected with the mounting bracket of the motor 6 is embedded in the mounting groove, the connecting cushion block 3 is provided with two connecting cushion blocks and symmetrically arranged at two sides of the bidirectional cylinder type shock absorber 4, the connecting cushion block 3 comprises a cushion block main body 32, a cavity is formed in the cushion block main body 32, high-viscosity silicone oil 31 is fully distributed in the cavity, a part of vibration energy can be absorbed when the vehicle body and the motor vibrate rotationally, and threaded holes for the connecting bolts 33 to pass through are formed in two ends of the cushion block main body 32.

In this embodiment, as shown in fig. 4, the upper end of the piston rod 47 is engraved with a thread, and passes through a through hole formed in the connecting plate 7 to be matched with a nut, so as to limit the maximum vibration displacement of the motor, the rodless cavity 43 is filled with silicone oil, the rod cavity 45 is filled with a mixture of silicone oil and gas, specifically, the rodless cavity 43 stores silicone oil with damping and vibration absorbing effects, and the rod cavity 45 above stores a small amount of silicone oil and a certain amount of gas.

Further, as shown in fig. 3, the two ends of the piston plate 42 are symmetrically provided with damping holes 44, the vehicle body vibrates up and down to drive the piston rod and the piston to move, the damping holes restrain the rapid vibration of the piston, so as to absorb vibration energy, the bottom of the damper cylinder 41 is welded on the base mounting plate 1, and the upper end of the damper cylinder 41 is provided with an end cover 46, so that the function of sealing a cavity can be achieved.

In this embodiment, evenly distributed's groove structure has been seted up to anti-skidding rubber pad 2 lower extreme, and the processing of being convenient for is manufactured, can strongly adsorb on the frame surface of installation, along with motor main part's vibration, can produce little lateral movement, can bear the shearing force of horizontal direction, so anti-skidding rubber pad 2 can reduce motor vertical direction's vibration, can restrict holistic horizontal direction relative movement again to reduce the friction between the two, improved this vibration damper's efficiency.

Example 2

In the embodiment, according to QC/T491-1991, a standard shock absorber with the smallest specification type of the cylinder type shock absorber for the automobile is selected, the bidirectional cylinder type shock absorber 4 is selected by adopting the standard shock absorber, and the double-acting cylinder type shock absorber with proper size is selected.

Example 3

In another preferred embodiment, as shown in FIG. 3, the relationship between the area of the rod chamber 45 and the two damping holes 44 is:

Assuming that the stretch condition is at the same speed (stretch speed = fluid movement speed towards lower part of rodless cavity): the stroke s=2 mm, the inner diameter d=50 mm of the rod cavity, the diameter d=15 mm of the rod, the radius of 2 damping holes is calculated, and the radius of the damping holes is about 33.72mm as a result.

Assuming the compression situation is at the same speed (compression speed = fluid movement speed towards the upper part of the rod chamber): the stroke s=2 mm has an inner diameter d=50 mm of the rod chamber, the radius of 2 damping holes is calculated, and the radius of the damping holes is calculated to be about 35.35mm.

If the speed of the liquid flowing through the damping hole is increased to be 2 times of the stretching speed or the compression speed compared with the stretching speed or the compression speed, the cross-sectional area of the damping hole can be reduced by 10 times.

Sealing scheme at this time: the sealing between the piston rod and the end cover adopts an O-shaped rubber sealing ring, and the sealing effect is realized by adopting an O-shaped rubber sealing ring or a skeleton-type rubber sealing structure between the end cover and the shock absorber cylinder body.

Example 4

On the basis of the embodiment 3, 4 damping valves are designed on the cross section of the piston, namely an extension valve, a compression valve, an extension valve and a compression valve in sequence, wherein the extension valve is opened in the extension state, and the compression valve is opened in the compression state, so that the cross section area of a damping hole is reduced by nearly half, and the bidirectional cylinder type vibration damping effect can be realized by setting the flow velocity.

Example 5

According to the technical scheme, the vibration reduction and anti-slip device for installing the heavy-mass motor has the following working principle: when the motor 6 vibrates, the piston rod 47 is driven to move up and down, and then the piston 42 moves up and down, so that the gas filled in the cavity is negligible, a small amount of silicone oil enters and exits the rod cavity through the respective damping holes, the rebound side effect of the damping spring 5 is restrained, and the purposes of absorbing vibration and relieving impact can be achieved; and secondly, as the damping spring 5 is sleeved on the outer side of the piston rod 47 in the bidirectional cylinder type damper 4, the installation space can be reduced, the upper end of the piston rod 47 is connected with the connecting plate 7 and is integrally connected with the frame 6, so that part of the weight of the motor and the damping device can be borne, and the force and the moment generated by vibration can be transmitted to the frame.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model 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.

The above embodiments are not intended to limit the present utility model, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present utility model should be included in the scope of the present utility model.

Claims (8)

1. The utility model provides a damping antiskid device for installing heavy mass motor, includes base mounting panel (1), base mounting panel (1) below is embedded to have anti-skidding rubber pad (2), is equipped with the mounting groove that links to each other with motor (6) on base mounting panel (1), its characterized in that: the base mounting plate (1) is provided with a bidirectional cylinder type shock absorber (4) which is connected, the outer side of the bidirectional cylinder type shock absorber (4) is sleeved with a shock absorption spring (5), and the bidirectional cylinder type shock absorber is connected with the frame (8) through a connecting plate (7);

The bidirectional cylinder type shock absorber (4) comprises a shock absorber cylinder body (41), a piston plate (42) horizontally arranged is arranged in the shock absorber cylinder body (41), a space in the shock absorber cylinder body (41) is divided into a rodless cavity (43) and a rod cavity (45) by the piston plate (42), a piston rod (47) connected with the piston plate (42) is arranged in the rod cavity (45), and a shock absorption spring (5) is sleeved outside the piston rod (47) and is matched with the piston rod to be connected with the connecting plate (7).

2. A vibration-damping and anti-slip device for mounting a heavy-weight motor as recited in claim 1, wherein: the connecting cushion blocks (3) connected with the motor (6) installing support are embedded in the installing grooves, and the connecting cushion blocks (3) are arranged at two sides of the bidirectional cylinder type shock absorber (4) symmetrically.

3. A vibration-damping and anti-slip device for mounting a heavy-weight motor as recited in claim 2, wherein: the connecting cushion block (3) comprises a cushion block main body (32), a cavity is formed in the cushion block main body (32), high-viscosity silicone oil (31) is fully distributed in the cavity, and threaded holes for connecting bolts (33) to penetrate through are formed in two ends of the cushion block main body (32).

4. A vibration-damping and anti-slip device for mounting a heavy-weight motor as recited in claim 1, wherein: the upper end of the piston rod (47) is engraved with threads, and the threads penetrate through holes formed in the connecting plates (7) to be matched with nuts.

5. A vibration-damping and anti-slip device for mounting a heavy-weight motor as recited in claim 4, wherein: the rodless cavity (43) is filled with silicone oil, and the rod cavity (45) is filled with a mixture of silicone oil and gas.

6. A vibration-damping and anti-slip device for mounting a heavy-weight motor as recited in claim 1, wherein: damping holes (44) are symmetrically formed in two ends of the piston plate (42).

7. A vibration-damping and anti-slip device for mounting a heavy-weight motor as recited in claim 1, wherein: the bottom of the shock absorber cylinder body (41) is welded on the base mounting plate (1), and an end cover (46) is arranged at the upper end part of the shock absorber cylinder body (41).

8. A vibration-damping and anti-slip device for mounting a heavy-weight motor as recited in claim 1, wherein: the lower end of the anti-skid rubber pad (2) is provided with groove structures which are uniformly distributed.