Dustproof buffer type compression shaft

Abstract

The utility model discloses a dustproof buffer type compression shaft which comprises a compression shaft seat, a first compression shaft and a second compression shaft, the first compression shaft is inserted into the compression shaft seat, the upper portion of the second compression shaft is inserted into the first compression shaft, the lower portion of the second compression shaft protrudes out of the first compression shaft, a compression shaft cap is arranged on the upper portion of the first compression shaft, and an elastic piece is arranged between the compression shaft cap and the second compression shaft. The compression spring is arranged between the first pressing shaft and the second pressing shaft, so that a buffering effect can be achieved when the second pressing shaft is subjected to external impact or vibration, the influence of impact on equipment is reduced, parts of the equipment are protected, and the reliability and durability of the equipment are improved; and through the clamping design of the pressing shaft cap and the shaft sleeve, external dust and dirt are effectively prevented from entering the shaft, the sealing performance and the dustproof effect between the shaft sleeve and the shaft are improved, equipment parts are protected from being influenced by the external environment, and the service life is prolonged.

Description

Technical Field

[0001] The utility model belongs to the field of compression shafts, in particular to a dustproof buffer type compression shaft. Background Art

[0002] The compression shaft is one of the most common and important components in mechanical systems. Its function is to convert rotational motion into linear compression motion. Usually, the compression shaft consists of a shaft, bearings and compression devices to transmit and carry compression force.

[0003] The dustproof and buffered compression shaft is a specially designed compression shaft that aims to solve the problems of traditional compression shafts being easily contaminated under harsh environmental conditions and lacking effective buffering measures. It adopts dustproof and buffering technology to effectively reduce the impact of the external environment on the bearing and compression device, providing a more stable compression movement.

[0004] The use of dustproof buffer compression shaft is relatively simple. First, install it correctly in the mechanical system and ensure that the bearings are in good working condition. Then, start the compression device according to actual needs, and the shaft will begin to perform compression movement. During use, pay attention to regular cleaning and maintenance to ensure its normal operation.

[0005] The existence of dustproof and buffered compression shafts is of great significance. First, it can improve the stability and reliability of the mechanical system, reduce failures and damage caused by external environmental factors, and thus extend the service life of the equipment. Secondly, the use of dustproof and buffering technology can reduce maintenance costs, improve the operating efficiency of the system, and enhance the competitiveness of the product.

[0006] There are many types of dust-proof buffer compression shafts on the market, with different structures and working principles. Some products use sealing design and special materials to effectively prevent dust and foreign matter from entering the bearing and protect the normal operation of the bearing system; other products combine buffering technology, using springs or shock-absorbing materials to achieve buffering and smooth control of the compression process.

[0007] Although the existing dust-proof buffer compression shafts have solved the problems of environmental pollution and impact during the compression process to a certain extent, there are still some technical deficiencies. After long-term use, the sealing performance of some products gradually decreases, causing dust and impurities to invade the bearing system; other products have limitations in buffering effect and cannot meet the needs of high-intensity compression scenarios. Summary of the invention

[0008] In view of the above technical problems, the utility model provides a dustproof buffer type compression shaft, which has the advantage of good sealing performance, and at the same time plays a buffering role through elastic parts to improve the buffering effect.

[0009] The above technical objectives of the utility model are achieved through the following technical solutions:

[0010] A dustproof buffer compression shaft comprises a compression shaft seat, a first compression shaft and a second compression shaft. The first compression shaft is inserted into the compression shaft seat, the upper part of the second compression shaft is inserted into the first compression shaft, the lower part of the second compression shaft protrudes out of the first compression shaft, the upper part of the first compression shaft is provided with a compression shaft cap, and an elastic member is provided between the compression shaft cap and the second compression shaft.

[0011] By adopting the above technical solution, by setting an elastic member between the pressure cap and the second pressure shaft, it can play a buffering role when the second pressure shaft is subjected to external impact or vibration, reduce the impact of the impact on the equipment, protect the equipment parts, and improve the reliability and durability of the equipment. The buffering effect can effectively reduce the noise and vibration generated during mechanical movement, improve the comfort and stability of equipment operation, and reduce the impact on the surrounding environment and operators. Reduce the number of equipment shutdowns and maintenance caused by impact or vibration, improve the reliability and stability of the equipment, and thus improve work efficiency and production efficiency. The entire mechanism is in a closed state and can be isolated from external dust.

[0012] It is further configured that the diameter of the upper end of the second pressing shaft is larger than the diameter of the shaft body, and the outer wall of the upper end of the second pressing shaft contacts the inner wall of the first pressing shaft.

[0013] By adopting the above technical solution, the raised portion formed on the upper part of the second pressing shaft can increase the sealing performance of the shaft, effectively preventing external dust, dirt, etc. from entering the interior of the shaft, thereby further improving the dustproof effect and protecting the operation and life of the shaft. The first sleeve is sleeved on the lower part of the second pressing shaft to enhance the connection stability between the shaft and the sleeve, making the buffering effect more uniform and reliable, reducing vibration or noise caused by component friction or instability, and improving the operation stability of the equipment. By enhancing the connection stability between the shaft and the sleeve, the wear and damage of parts caused by friction or vibration can be effectively reduced, the service life of the sleeve and the shaft can be extended, and the maintenance cost of the equipment can be reduced.

[0014] It is further provided that the inner wall of the lower end of the second sleeve forms a first recessed portion along the circumferential direction, the first sleeve is inserted into the first recessed portion, and the first sleeve contacts the inner wall of the first recessed portion.

[0015] By adopting the above technical solution, the first recessed portion formed in the inner hole at one end of the first pressing shaft and the first sleeve are engaged, which can increase the connection stability between the sleeve and the shaft, effectively prevent the shaft from deflecting or shaking during operation, thereby ensuring the stability and reliability of the equipment. The engagement design makes the connection between the first pressing shaft and the first sleeve tighter, effectively preventing external dust and dirt from entering the interior of the shaft, further improving the dustproof effect, and extending the service life of the shaft and the sleeve.

[0016] It is further provided that the pressing shaft seat comprises a mounting plate and a second shaft sleeve, the second shaft sleeve is connected to the mounting plate, and the second shaft sleeve is used for inserting the first pressing shaft.

[0017] By adopting the above technical solution, by connecting the mounting plate and the second sleeve, the stability of the entire structure can be enhanced, loosening or friction between the sleeve and the mounting plate can be prevented, and the stability and reliability of the equipment during operation can be ensured.

[0018] It is further provided that the inner wall of the upper end of the second sleeve forms a second recessed portion, the third sleeve is inserted into the second recessed portion, and the third sleeve contacts the inner wall of the second recessed portion.

[0019] By adopting the above technical solution, the second recessed portion formed in the inner hole at one end of the second sleeve is engaged with the third sleeve, thereby enhancing the connection stability between the sleeve and the shaft, preventing the shaft from deflecting or shaking during operation, and ensuring the stability and reliability of the equipment. The engagement method makes the connection between the second sleeve and the third sleeve tighter, effectively preventing external dust and dirt from entering the interior of the shaft, further improving the dustproof effect, and extending the service life of the shaft and sleeve.

[0020] It is further provided that the mounting plate is square, and mounting holes are arranged at four corners, and the position of the compression shaft is fixed through the mounting holes.

[0021] It is further arranged that the elastic member is a compression spring.

[0022] In summary, the utility model has the following beneficial effects:

[0023] 1. The utility model effectively prevents external dust and dirt from entering the shaft through the clamping design of the shaft cap and the shaft sleeve, improves the sealing performance and dustproof effect between the shaft sleeve and the shaft, protects equipment parts from external environment, and prolongs service life.

[0024] 2. The utility model enhances the connection stability between the sleeve and the shaft through the engagement design of the raised portion and the recessed portion, and the first sleeve and the second recessed portion, effectively preventing the shaft from deflecting or shaking during operation, and improving the stability and reliability of the equipment.

[0025] 3. The utility model provides an elastic member and combines the engagement design of the upper protrusion of the first pressure shaft, the first sleeve and the first recessed portion, so as to play a buffering role when the second pressure shaft is subjected to external impact or vibration, reduce the impact of the impact on the equipment, and reduce the noise and vibration generated during mechanical movement, thereby improving the comfort and stability of the equipment operation and reducing the impact on the surrounding environment and operators. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1It is a structural schematic diagram of a dustproof buffer type compression shaft of a preferred embodiment;

[0027] Figure 2 is a front view of a dustproof buffer type compression shaft of a preferred embodiment;

[0028] Figure 3 is a cross-sectional view of a dustproof buffer type compression shaft of a preferred embodiment;

[0029] Figure 4 It is a schematic diagram of the structure of the second finale;

[0030] Figure 5 is a cross-sectional view of the first sleeve;

[0031] Figure 6 It is a schematic diagram of the structure of the finale cap;

[0032] Figure 7 is a front cross-sectional view of a dustproof buffer type compression shaft of a preferred embodiment;

[0033] Figure 8 It is a structural schematic diagram of the pressure seat;

[0034] Fig. 9 It is a cross-sectional view of the finale seat.

[0035] 1. The pressing shaft seat; 1-1. The mounting plate; 1-2. The second sleeve; 1-3. The second recess; 1-4. The mounting hole; 2. The first pressing shaft; 2-1. The first recess; 3. The pressing shaft cap; 4. The second pressing shaft; 4-1. The raised portion; 5. The elastic member; 6. The first sleeve; 7. The third sleeve. DETAILED DESCRIPTION

[0036] The preferred embodiments of the present utility model are described in detail below in conjunction with the accompanying drawings.

[0037] like Figure 1-3 , Figure 6 As shown, a dustproof buffer type compression shaft of a preferred embodiment includes a compression shaft seat 1, a first compression shaft 2, and a second compression shaft 4. The first compression shaft 2 is inserted into the compression shaft seat 1, the upper part of the second compression shaft 4 is inserted into the first compression shaft 2, and the lower part of the second compression shaft 4 protrudes out of the first compression shaft 2. A compression shaft cap 3 is provided on the upper part of the first compression shaft 2, and an elastic member 5 is provided between the compression shaft cap 3 and the second compression shaft 4. The first compression shaft 2 and the compression shaft cap 3 are integrally formed. The elastic member 5 is a compression spring.

[0038] like Figure 3 , Figure 4 , Figure 5 , Figure 7As shown, the diameter of the upper end 4-1 of the second pressing shaft 4 is larger than the diameter of the shaft body 4-2, and the outer wall of the upper end 4-1 of the second pressing shaft touches the inner wall of the first pressing shaft 2. The second pressing shaft 4 can move up and down on the inner wall of the first pressing shaft 2. The inner wall of the lower end of the second pressing shaft 2 forms a first recessed portion 2-1 along the circumferential direction, and the first recessed portion 2-1 is installed in the shaft sleeve 6, and the shaft sleeve 6 touches the inner wall of the first recessed portion 2-1.

[0039] like Figure 7-9 As shown, the pressure bearing seat 1 includes a mounting plate 1-1 and a first sleeve 1-2, the first sleeve 1-2 is connected to the mounting plate 1-1, and the first sleeve 1-2 is used to insert the first pressure bearing 2. The first pressure bearing 2 can move up and down in the first sleeve 1-2. The upper inner wall of the first sleeve 1-2 forms a second recessed portion 1-3, and the second recessed portion 1-3 is loaded with a third sleeve 7, and the third sleeve 7 is in contact with the inner wall of the second recessed portion 1-3. The mounting plate 1-1 is square, and mounting holes 1-4 are set at the four corners.

[0040] During operation, when a force is applied to the first pressing shaft 2, the first pressing shaft 2 is forced to move downward in the pressing shaft seat 1. When the second pressing shaft 4 contacts an object, the elastic member 5 will be compressed. At this time, the elastic member 5 provides a buffering effect, reducing the impact of the impact force on the overall structure. When the force applied to the first pressing shaft 2 disappears, the elastic member 5 will gradually stretch, the second pressing shaft 4 will return to its original position, and the entire system will return to its initial state.

[0041] This preferred embodiment can cooperate with the folding and raising of the fork frame to realize the retraction and opening of the pothole protection plate of the whole vehicle. When the top of the first pressure shaft 2 is subjected to the pressure of the fork frame, it moves downward, and at the same time, the internal elastic member 5 also moves downward. Since there is a compressed component at the bottom of the second pressure shaft 4, as the fork frame descends and resets, the first pressure shaft 2 is pressed and continues to move downward, and the elastic member 5 is compressed by the pressure. At this time, the maximum spring force of the maximum compression amount of the elastic member 5 is greater than the designed load force, so that the elastic member 5 will not be completely compressed, and the compression shaft will not form a rigid contact pressure. At this time, the elastic member 5 not only plays the role of buffering force, but also effectively avoids the rigid compression of the compression mechanism, thereby extending the service life of the compression shaft.

[0042] The above-mentioned implementation mode is merely an explanation of the present invention, and it is not a limitation of the present invention. After reading this specification, those skilled in the art can make non-creative modifications to the present implementation mode as needed, but as long as it is within the scope of the claims of the present invention, it is protected by the patent law.

Claims

1. A dustproof buffer compression shaft, characterized in that: The invention comprises a pressure bearing seat (1), a first pressure bearing (2), and a second pressure bearing (4), wherein the first pressure bearing (2) is inserted into the pressure bearing seat (1), the upper part of the second pressure bearing (4) is inserted into the first pressure bearing (2), the lower part of the second pressure bearing (4) protrudes out of the first pressure bearing (2), the upper part of the first pressure bearing (2) is provided with a pressure bearing cap (3), and an elastic member (5) is provided between the pressure bearing cap (3) and the second pressure bearing (4).

2. The dustproof buffer compression shaft according to claim 1, characterized in that: The diameter of the upper end (4-1) of the second pressing shaft (4) is greater than the diameter of the shaft body (4-2), and the outer wall of the upper end (4-1) of the second pressing shaft contacts the inner wall of the first pressing shaft (2).

3. The dustproof buffer compression shaft according to claim 2, characterized in that: The inner wall of the lower end of the second pressing shaft (4) forms a first recessed portion (2-1) along the circumferential direction, the first recessed portion (2-1) is inserted into a shaft sleeve (6), and the shaft sleeve (6) contacts the inner wall of the first recessed portion (2-1).

4. The dustproof buffer type compression shaft according to claim 1, characterized in that: The pressing shaft seat (1) comprises a mounting plate (1-1) and a first shaft sleeve (1-2), wherein the first shaft sleeve (1-2) is connected to the mounting plate (1-1), and the first shaft sleeve (1-2) is used for inserting the first pressing shaft (2).

5. The dustproof buffer type compression shaft according to claim 4, characterized in that: The inner wall of the upper end of the first shaft sleeve (1-2) forms a second recessed portion (1-3), the second recessed portion (1-3) is inserted into the third shaft sleeve (7), and the third shaft sleeve (7) contacts the inner wall of the second recessed portion (1-3).

6. The dustproof buffer type compression shaft according to claim 4, characterized in that: The mounting plate (1-1) is square in shape, and mounting holes (1-4) are arranged at four corners.

7. The dustproof buffer type compression shaft according to claim 1, characterized in that: The elastic member (5) is a compression spring.

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