Quick dismounting and mounting device for buffer block in air spring

Abstract

The utility model discloses a quick dismounting and mounting device for a buffer block in an air spring, the air spring comprises an upper air chamber, a piston and a leather bag, the leather bag is arranged between the upper air chamber and the piston in a sealing manner, top rubber is arranged in the upper air chamber, and the buffer block is arranged at the bottom of the upper air chamber; the device is characterized by comprising a dismounting rod, a guide rod and a push rod, the guide rod and the push rod are in sliding fit, and the dismounting rod is used for separating a buffer block from an upper air chamber and taking down the buffer block; the guide rod is used for being vertically inserted below the upper air chamber when the buffer block is mounted; the push rod is used for driving the buffer block to rise along the guide rod so that the buffer block is connected with the bottom of the upper air chamber; in the prior art, an upper air chamber and a leather bag cannot be directly detached due to a piston buckling ring, that is, only the whole set of structures such as a buffer block and the upper air chamber can be replaced, and the cost is high; the single part of the buffer block is taken out from the interior of the air spring from top to bottom through a plurality of dismounting rods, the replacement cost is reduced, and replacement is convenient.

Description

Technical Field

[0001] This utility model relates to the field of buffer block assembly and disassembly, specifically to a quick assembly and disassembly device for buffer blocks in air springs. Background Technology

[0002] In chassis design, the suspension system is a key part, and the buffer block is one of the important components of the suspension. The main function of the buffer block is to limit the suspension travel and absorb the impact force transmitted from the road surface to the vehicle body when the wheel encounters a bump or depression during driving.

[0003] Regarding the performance parameters of the buffer block, the parameters that affect the performance of the buffer block include density, height, and width of the reinforcing ring. Generally, in the early calibration stage, several sets of buffer blocks in different states will be made for real-vehicle verification to determine the final state of the buffer block.

[0004] In the initial calibration phase, the buffer block in the air spring needs to be disassembled and reassembled multiple times to determine the final required state of the buffer block. Since the buffer block is located inside the upper air chamber and the bladder, and the upper air chamber and the bladder are fixed by a clamping ring, if it is disassembled from the inside out, the bladder may be damaged due to opening the clamping ring, affecting the normal use of the bladder. In other words, the current method cannot disassemble and reassemble the buffer block separately, and the disassembly is inconvenient. Therefore, we propose a quick disassembly and reassembly device for the buffer block in the air spring. Utility Model Content

[0005] The purpose of this invention is to provide a quick assembly and disassembly device for a buffer block in an air spring, so as to solve the problems mentioned in the background art.

[0006] This utility model provides the following technical solution: a quick disassembly and assembly device for a buffer block in an air spring, the air spring including an upper air chamber, a piston, and a bladder, the bladder being sealed between the upper air chamber and the piston, the upper air chamber having a top rubber, and the bottom of the upper air chamber having a buffer block; characterized in that it includes a disassembly rod and a slidingly engaged guide rod and push rod, the disassembly rod being used to separate the buffer block from the upper air chamber and remove the buffer block; the guide rod being used to vertically insert below the upper air chamber when installing the buffer block; the push rod being used to drive the buffer block to rise along the guide rod to connect the buffer block to the bottom of the upper air chamber.

[0007] Preferably, the disassembly rod consists of a horizontal insert rod and a vertical rod; the horizontal insert rod is used to insert into the gap between the buffer block and the upper air chamber, and the vertical rod is used to drive the buffer block to move downward.

[0008] Preferably, the top of the push rod has a limiting groove for placing a buffer block, and the depth of the limiting groove is less than the height of the buffer block.

[0009] Preferably, a limiting channel is arranged in the middle of the push rod and communicated with the limiting groove, and the guide rod is slidable up and down relative to the limiting channel.

[0010] Preferably, a convex head is arranged on the top of the guide rod and matched with the top glue port.

[0011] Preferably, the disassembling rod is made of rigid material.

[0012] Preferably, the disassembling rod is at least two.

[0013] Compared with the prior art, the air spring of the utility model has the beneficial effects that:

[0014] (1) In the prior art, the piston pressing ring leads to that the upper air chamber and the air bag cannot be directly disassembled, and thus the buffer block in the air spring cannot be taken out from outside to inside, that is, only the buffer block and the upper air chamber and other structures can be replaced as a whole, and the cost is high; the utility model is characterized in that the buffer block is taken out from the air spring from top to bottom by the plurality of disassembling rods, and thus the replacement cost is reduced and the replacement is facilitated in the early vehicle adjustment stage.

[0015] (2) In the installation process of the buffer block, the push rod and the guide rod are used to ensure that the buffer block is stably moved upward and is prevented from being deviated, and the installation stability of the buffer block and the upper air chamber is ensured, that is, the buffer block is quickly installed, and the installation steps are simple. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is an overall sectional view of the air spring of the utility model;

[0017] Figure 2 It is a structure schematic view of the air spring after the shock absorber is disassembled in the specific embodiment of the utility model;

[0018] Figure 3 It is a structure schematic view of the air spring after the disassembling rod is inserted in the specific embodiment of the utility model;

[0019] Figure 4 It is a structure schematic view of the air spring after the buffer block is taken out in the specific embodiment of the utility model;

[0020] Figure 5 It is a structure schematic view of the air spring after the guide rod is inserted in the specific embodiment of the utility model;

[0021] Figure 6 It is a structure schematic view of the air spring after the buffer block is pushed upward in the specific embodiment of the utility model;

[0022] In the figure: 1, top cover; 2, upper air chamber; 3, nut; 4, buffer block; 5, piston rod; 6, shock absorber; 7, piston; 71, piston port; 8, dismounting rod; 9, guide rod; 10, top glue; 11, push rod; DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0024] Please refer to Figures 1-6 The utility model provides a kind of quick dismounting device for buffer block in air spring, the air spring includes upper air chamber 2, piston 7, skin bag, the skin bag is sealed between upper air chamber 2 and piston 7, top glue 10 is equipped in the upper air chamber 2, and buffer block 4 is detachably equipped in the bottom of the upper air chamber 2;Including dismounting rod 8 and slidingly matched guide rod 9, push rod 11, the dismounting rod 8 is used to separate buffer block 4 from upper air chamber 2 and take down buffer block 4;The guide rod 9 is used to be inserted vertically below upper air chamber 2 when installing buffer block 4;The push rod 11 is used to drive buffer block 4 to ascend along guide rod 9 to connect buffer block 4 with the bottom of upper air chamber 2.

[0025] In prior art, if forcibly dismounting is locked by buckling ring, it is easy to cause skin bag to be damaged, cannot achieve to take out buffer block in air spring from outside to inside, i.e. only can achieve to replace whole set of structure such as buffer block and upper air chamber, and cost is higher;And the utility model is taken out from top to bottom by piston by buffer block single component through dismounting rod 8, i.e. avoid in early stage of whole vehicle calibration stage, i.e. reduce replacement cost, and it is convenient to replace.

[0026] Further embodiment, the upper air chamber 2 is equipped with top cover 1, further including shock absorber 6, the shock absorber 6 is arranged in the piston 7, the shock absorber 6 upper piston rod 5 is sequentially through buffer block 4, top glue 10, the top glue 10 is equipped with nut 3 with the thread cooperation of piston rod 5, and the nut 3 is located between top glue 10 and top cover 1;

[0027] I.e. through shock absorber sequentially connect buffer block 4, top glue 10, i.e. realize when the vibration of vehicle body, can better improve the NVH performance of whole vehicle, through nut 3 to realize that piston rod 5 is locked in upper air chamber 2;

[0028] Further embodiments, the upper chamber 2 bottom is provided with a card slot, the buffer block 4 and the upper chamber 2 interference fit, the disassembly rod 8 is composed of horizontal plug rod and vertical rod, specifically in the "7" word type; The horizontal plug rod is used for inserting in the buffer block 4 and the upper chamber 2 gap, the vertical rod is used for driving the buffer block 4 to move down;

[0029] That is, when the buffer block 4 is disassembled, the horizontal plug rod can be inserted into the buffer block 4 and the upper chamber 2 gap, and then the vertical rod is pulled down to separate the buffer block 4 and the upper chamber 2;

[0030] Further embodiments, the top of the push rod 11 is provided with a limiting slot for placing the buffer block 4, and the depth of the limiting slot is less than the height of the buffer block 4; By setting the limiting slot on the top of the push rod 11, the buffer block 4 can be placed in the limiting slot, and the subsequent upward movement of the buffer block driven by the push rod 11 can be ensured to avoid the buffer block 4 from being offset or falling off, and the installation stability of the upper chamber 2 can be ensured; and the depth of the limiting slot is less than the height of the buffer block 4, so that the buffer block 4 extends out of the limiting slot and is clamped into the bottom card slot of the upper chamber 2 under the push of the push rod 11, thereby limiting.

[0031] Further embodiments, the push rod 11 is provided with a limiting channel communicated with the limiting slot, and the guide rod 9 can slide up and down relative to the limiting channel; That is, by setting the limiting channel in the push rod 11, the push rod 11 can pass through the guide rod 9 to stably push the buffer block 4 to rise to a specified position, so as to facilitate the installation of the buffer block.

[0032] Further embodiments, the top of the guide rod 9 is provided with a convex head matched with the top glue hole; That is, the guide rod 9 is stably inserted into the top glue hole to ensure the stable movement of the buffer block.

[0033] Further embodiments, the disassembly rod 8 is composed of a rigid material; The rigid material can be composed of aluminum alloy, stainless steel and the like; That is, the disassembly rod 8 is made of a rigid material to extrude the buffer block to deform, so as to be inserted into the gap between the buffer block and the upper chamber and to pull the buffer block and the upper chamber to stably separate.

[0034] Further embodiments, the disassembly rod 8 is at least two; A plurality of disassembly rods 8 can be provided to pull the buffer block 4 at different positions, so as to quickly separate the buffer block 4 from the upper chamber 2; At the same time, through the plurality of disassembly rods 8, the buffer block 4 is prevented from being subjected to large force at a single position, which affects the subsequent use of the buffer block 4.

[0035] The dismounting method for the buffer block in the air spring in the utility model comprises two steps of buffer block dismounting and installing;

[0036] The buffer block dismounting step comprises:

[0037] SA1, dismounting the shock absorber 6;

[0038] The step SA1 comprises:

[0039] SA11, press the top cover 1 to take it out from the top of the upper air chamber 2;

[0040] SA12, after the nut 3 is removed from the piston rod 5, the shock absorber 6 is taken out from the bottom of the piston 7;

[0041] That is, by pressing the top cover 1 and the torsion spring below the top cover 1, the top cover is taken out from the upper air chamber 2, and the shock absorber 6 is fixed in the air spring through the upper piston rod 5, that is, by removing the nut 3 to release the locking of the piston rod 5 in the air spring, and then the shock absorber 6 is taken out as a whole from the bottom of the piston 7, so as to facilitate the subsequent taking out of the buffer block from the bottom of the piston 7;

[0042] SA2, insert the disassembly rod 8 to take out the buffer block 4;

[0043] SA21, the disassembly rod 8 is inserted into the buffer block 4 and the gap between the upper air chamber 2 from the bottom of the piston 7, and the disassembly rod 8 is two;

[0044] SA22, and pull down the disassembly rod 8 to take out the buffer block 4 from the piston port 71;

[0045] Two disassembly rods 8 are respectively inserted into different positions of the gap between the buffer block 4 and the upper air chamber 2 from the bottom, and two disassembly rods 8 are pulled down to take out the buffer block 4 from the piston port 71;

[0046] Although the buffer block 4 and the upper air chamber 2 are interference fit, the buffer block 4 is made of rubber material, and two disassembly rods 8 are respectively inserted into different positions of the gap between the buffer block 4 and the upper air chamber 2, and two disassembly rods 8 are pulled down to drive the buffer block 4 and the upper air chamber 2 to separate, and the buffer block 4 is taken out from the bottom of the piston 7 through the piston port 71;

[0047] The buffer block installation step comprises:

[0048] SB1, the guide rod 9 is inserted into the upper air chamber 2 at the top rubber port;

[0049] SB2, the push rod 11 is pushed to drive the buffer block 4 to rise along the guide rod 9 until the buffer block 4 is fixedly connected with the upper air chamber 2;

[0050] SB3, the guide rod 9 and the push rod 11 are taken out in turn.

[0051] When the buffer block 4 is installed, the guide rod 9 is inserted into the upper air chamber 2 through the piston 7 to limit, so as to facilitate the subsequent installation of the buffer block 4 in the specified position of the upper air chamber 2;

[0052] In a further embodiment, in the step SB11, the guide rod 9 is first vertically inserted into the top glue 10 in the upper air chamber 2 through the piston port 71; that is, the guide rod 9 is inserted into the top glue port from bottom to top in the upper air chamber 2, so as to vertically fix the guide rod 9 in the upper air chamber 2 and the piston 7.

[0053] In a further embodiment, the step SB2 comprises:

[0054] SB21, the buffer block 4 is first placed in the limiting groove on the top of the push rod 11;

[0055] SB22, the push rod 11 drives the buffer block 4 to pass through the guide rod 9 and rise to below the clamping groove of the upper air chamber 2;

[0056] SB23, the push rod 11 is continuously pushed to move the buffer block 4 upward until the buffer block 4 is clamped with the clamping groove of the upper air chamber 2.

[0057] By placing the buffer block 4 in the limiting groove on the top of the push rod 11, then the push rod 11 drives the buffer block 4 to approach the bottom of the guide rod 9, so that the buffer block 4 and the push rod 11 pass through the guide rod 9 in sequence, until the push rod 11 is pushed to rise along the guide rod 9 to the position where the buffer block 4 is clamped with the clamping groove at the bottom of the upper air chamber 2, the buffer block 4 is continuously pushed to rise to extrude the buffer block 4 and the clamping groove to deform, so as to complete the clamping and fixing of the buffer block and the clamping groove, that is, the buffer block is quickly and accurately installed, and the operation steps are simple and have strong practicability.

[0058] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, the scope of the utility model is defined by the appended claims and equivalents.

Claims

1. A quick dismounting device for a bumper block in an air spring, the air spring comprising an upper air chamber (2), a piston (7), a bag, the bag being sealingly arranged between the upper air chamber (2) and the piston (7), the upper air chamber (2) being provided with a top rubber (10) therein, and the upper air chamber (2) being provided with the bumper block (4) at the bottom thereof; characterized in that, The device comprises a dismounting rod (8) and a slidingly fitted guide rod (9) and push rod (11), The dismounting rod (8) is used to separate the buffer block (4) from the upper air chamber (2) and remove the buffer block (4). The guide rod (9) is used to be vertically inserted under the upper air chamber (2) when the buffer block (4) is installed. The push rod (11) is used to drive the buffer block (4) to rise along the guide rod (9) to connect the buffer block (4) with the bottom of the upper air chamber (2).

2. A quick release device for a bump stop in an air spring as defined in claim 1, wherein: The dismounting rod (8) is composed of a horizontal insertion rod and a vertical rod, the horizontal insertion rod is used to be inserted at the gap between the buffer block (4) and the upper air chamber (2), and the vertical rod is used to drive the buffer block (4) to move downward.

3. A quick release device for a bump stop in an air spring as defined in claim 1, wherein: The push rod (11) is provided with a limiting slot at the top for placing the buffer block (4), and the depth of the limiting slot is less than the height of the buffer block (4).

4. A quick release device for a bump stop in an air spring as defined in claim 3, wherein: The push rod (11) is provided with a limiting channel in the middle which is communicated with the limiting slot, and the guide rod (9) can slide up and down relative to the limiting channel.

5. A quick release device for a bump stop in an air spring as defined in claim 1, wherein: The guide rod (9) is provided with a convex head at the top which is matched with the top glue port.

6. A quick release device for a bump stop in an air spring as defined in claim 1, wherein: The dismounting rod (8) is composed of a rigid material.

7. A quick release device for a bump stop in an air spring as defined in claim 1, wherein: The dismounting rod (8) is at least two.

8. A quick release device for a bump stop in an air spring as defined in claim 1, wherein: The upper air chamber (2) is provided with a top cover (1), and further comprises a shock absorber (6), the shock absorber (6) is arranged in the piston (7), the piston rod (5) on the shock absorber (6) sequentially passes through the buffer block (4) and the top glue (10), and the top glue (10) is provided with a nut (3) which is screwed with the piston rod (5).

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