Anti-fatigue pin shaft for engineering machinery

Abstract

The utility model discloses an anti-fatigue pin shaft for engineering machinery, which relates to the field of engineering machinery and comprises a body rod and a connector fixedly mounted on the right side of the body rod, a positioning block is fixedly mounted on the right side of the connector, a tensile layer is wrapped on the outer surface of the body rod, and an anti-fatigue corrosion mechanism is arranged on the outer side of the tensile layer. A pressing block is embedded in the positioning block, and sliding blocks are fixedly installed on the outer sides of the upper end and the lower end of the pressing block. According to the anti-fatigue pin shaft for the engineering machinery, the inclined radian interval capable of enabling the connected and installed engineering machinery to rotate more stably is arranged, after the main body rod is installed at a designated position through the installation plate, the engineering machinery needing to be installed is connected through the main body rod, and the engineering machinery can rotate more stably; and a positioning block installed through a connector is arranged on the right side of the main body rod, the installed engineering machinery can be limited through the positioning block, the engineering machinery is prevented from being separated from the main body rod, and normal operation of the device is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of engineering machinery, in particular to an anti-fatigue pin shaft for engineering machinery. Background Art

[0002] The pin in construction machinery refers to a shaft-shaped part used to connect and support mechanical parts. It usually plays an important role in transmitting torque, supporting loads and making mechanical parts rotate relative to each other. The material selection and design of the pin are crucial to the stability and reliability of construction machinery;

[0003] For example, the pin structure of a crawler engineering machinery with publication number CN109458386A comprises a pin body, a boss is arranged at one end of the pin body, a through hole is opened on the pin body, the through hole is arranged on a side away from the boss, the through hole is perpendicular to the central axis of the pin body, an annular groove is arranged on the pin body, the annular groove is arranged on a side of the through hole close to the boss, an oil groove is arranged on the side wall of the pin body in the annular groove, a plurality of oil filling holes are opened on the surface of one end of the boss away from the pin body, the oil filling holes are connected with an oil storage chamber, the oil storage chamber is arranged inside the pin body, and the oil storage chamber is kept horizontal with the central axis of the pin body, the oil storage chamber is connected to the oil groove through a plurality of oil outlet holes, the structure is simple, the design is reasonable, the pin has good structural strength, and the oil grooves are designed with reasonable distribution, and the service life of the pin is long;

[0004] The pin structure of the above-mentioned crawler engineering machinery is connected to the oil tank through the oil storage cavity through a plurality of oil outlet holes, and can have good structural strength. However, when using the pin, it is necessary to manually embed steel wire to fix it, and the staff needs to use greater force to assist in the installation of the pin. At the same time, if it needs to be replaced later, it is inconvenient to remove the installed pin. Utility Model Content

[0005] The purpose of the utility model is to provide an anti-fatigue pin for engineering machinery to solve the problem proposed in the above background technology that workers need to use greater force to assist in installing the pin, and at the same time, it is inconvenient to remove the installed pin if it needs to be replaced later.

[0006] To achieve the above object, the utility model provides the following technical solution: an anti-fatigue pin for engineering machinery, comprising a main rod and a connector fixedly installed on the right side of the main rod, and a positioning block is fixedly installed on the right side of the connector;

[0007] The outer surface of the main rod is wrapped with a tensile layer, and an anti-fatigue corrosion mechanism is arranged on the outer side of the tensile layer;

[0008] A pressing block is nested inside the positioning block, and sliding blocks are fixedly installed on the outer sides of the upper and lower ends of the pressing block. A sliding groove is opened on the inner wall of the positioning block, and the connection mode between the sliding block and the sliding groove is a sliding connection. An automatic expansion limit mechanism is arranged on the left side of the pressing block.

[0009] Furthermore, the left and right edge positions of the main body rod are provided with inclined arc intervals, and the shape of the inclined arc intervals is set in an arc shape.

[0010] Furthermore, the anti-fatigue corrosion mechanism is provided with an anti-corrosion layer, and the inner side of the anti-corrosion layer is fixedly mounted on the outer surface of the anti-tensile layer.

[0011] Furthermore, the anti-corrosion layer is wrapped on the surface of the anti-tensile layer, and the anti-corrosion layer is made of stainless steel, and the anti-tensile layer is made of aluminum alloy.

[0012] Furthermore, the automatic deployment limit mechanism is provided with a limit blocking rod, and the middle end of the limit blocking rod passes through the installation positioning block, and the inner side shape of the limit blocking rod is inclined, and the bottom position of the limit blocking rod corresponds to the inner side position of the pressing block.

[0013] Furthermore, a fixing plate is fixedly installed on the middle end of the limit blocking rod, and a return spring is fixedly installed on the outer side of the fixing plate, and the outer side of the return spring is fixedly installed on the positioning block, and the return spring is nested in the surface of the limit blocking rod.

[0014] Furthermore, the pressing block is provided with a card slot at both ends, and the card slot is arranged corresponding to the inner shape of the limit blocking rod, and an adjustment slot is provided inside the pressing block, and a shift plate is nested inside the adjustment slot, the shape of the shift plate is a "T" shape, and a push plate is fixedly installed on the upper left end of the shift plate, and the push plate is located inside the card slot.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. An inclined arc interval is provided to enable the connected and installed engineering machinery to rotate more stably. After the main rod is installed at the designated position through the mounting plate, the engineering machinery to be installed is connected through the main rod, which can rotate more stably;

[0017] Furthermore, a positioning block installed through a connecting head is provided on the right side of the main rod, and the positioning block can limit the installed engineering machinery to prevent it from being separated from the main rod, thereby ensuring the normal operation of the device;

[0018] Furthermore, a tensile layer is provided on the surface of the main rod, and the material of the tensile layer is made of aluminum alloy, which reduces the mass of the pin shaft while having higher toughness and structural strength, and prevents the device from being easily damaged. At the same time, an anti-corrosion layer is wrapped on the surface of the tensile layer, and the material of the anti-corrosion layer is made of stainless steel, which can make the surface of the pin shaft have an anti-corrosion effect, and prevent the surface of the pin shaft from being corroded under long-term use, thereby increasing the service life of the device and achieving an anti-fatigue effect.

[0019] 2. After the main rod is installed, the pressing block on the right side is installed, and the pressing block slides along the slide groove toward the inside of the positioning block through the slider. At this time, the left side of the pressing block squeezes the inclined position of the bottom of the limit blocking rod. As the pressing block is embedded, the limit blocking rod moves outward to squeeze the return spring through the fixing plate until the bottom of the limit blocking rod corresponds to the position of the slot. The limit blocking rod is engaged with the pressing block inside the slot, and the outside of the limit blocking rod extends outward, which can limit the construction machinery installed on the main body to prevent the construction machinery from falling during use. At the same time, there is no need for the staff to use a large force to limit and fix it, which saves the physical strength required by the staff.

[0020] Furthermore, when it is necessary to remove the pin shaft or the engineering machinery on its surface, the push plate inside the pressing block is pushed outward. The push plate slides outward along the inside of the adjusting groove, and a push plate is fixedly installed on its outside. The push plate pushes the limit blocking rod outward in the slot, so that the limit blocking rod disengages from the engagement of the slot. At this time, the pressing block can be pulled to the right until the limit blocking rod is reset and retracted into the positioning block under the elastic force of the reset spring itself, so that the limit can be cancelled, which is convenient for the staff to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the front cross-sectional structure of the utility model;

[0022] Figure 2 This is a schematic diagram of the side cross-sectional structure of the main rod of the utility model;

[0023] Figure 3 This is a schematic diagram of the front cross-sectional structure of the positioning block of the utility model;

[0024] Figure 4 This is a side view structural diagram of the positioning block of the utility model;

[0025] Figure 5 This is a schematic diagram of the three-dimensional structure of the position-limiting blocking rod of the utility model;

[0026] Figure 6 It is a schematic diagram of the sectional three-dimensional structure of the pressing block of the utility model.

[0027] In the figure: 1. main rod; 2. tilt arc interval; 3. connector; 4. positioning block; 5. tensile layer; 6. anti-corrosion layer; 7. pressing block; 8. slot; 9. limit blocking rod; 10. fixing plate; 11. reset spring; 12. slider; 13. slide groove; 14. adjustment groove; 15. dial plate; 16. push plate; 17. mounting plate. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] Embodiment 1:

[0030] like Figure 1 The technical solution shown, in order to solve the problem of unstable rotation of engineering machinery, discloses: a main rod 1 and a connector 3 fixedly installed on the right side of the main rod 1, and a positioning block 4 is fixedly installed on the right side of the connector 3, and an inclined arc interval 2 is set at the left and right edge positions of the main rod 1, and the shape of the inclined arc interval 2 is set in an arc shape;

[0031] In the embodiment, an inclined arc interval 2 is provided to enable the connected and installed engineering machinery to rotate more stably. After the main rod 1 is installed at the specified position through the mounting plate 17, the engineering machinery to be installed is connected through the main rod 1, and can rotate more stably. A positioning block 4 installed through the connecting head 3 is provided on the right side of the main rod 1. The positioning block 4 can limit the installed engineering machinery to prevent it from being separated from the main rod 1, thereby ensuring the normal operation of the device; Example

[0032] like Figure 1 and Figure 2 The technical solution shown, in order to solve the problem of poor anti-fatigue effect of the pin shaft and high cost, discloses: the outer surface of the main rod 1 is wrapped with a tensile layer 5, and the outer side of the tensile layer 5 is provided with an anti-fatigue corrosion mechanism, the anti-fatigue corrosion mechanism is provided with an anti-corrosion layer 6, and the inner side of the anti-corrosion layer 6 is fixedly installed on the outer surface of the tensile layer 5, the anti-corrosion layer 6 is wrapped on the surface of the tensile layer 5, and the material of the anti-corrosion layer 6 is made of stainless steel, and the material of the tensile layer 5 is made of aluminum alloy;

[0033] In the embodiment, a tensile layer 5 is provided on the surface of the main rod 1. The tensile layer 5 is made of aluminum alloy, which reduces the mass of the pin and has higher toughness and structural strength, preventing the device from being easily damaged. At the same time, a corrosion-resistant layer 6 is wrapped on the surface of the tensile layer 5. The corrosion-resistant layer 6 is made of stainless steel, which can make the surface of the pin have corrosion-resistant effect, avoiding corrosion of the pin surface under long-term use, and can increase the service life of the device and achieve anti-fatigue effect. Example

[0034] like Figure 1 , Figure 3 , Figure 4 , Figure 5 and Figure 6 The technical solution shown, in order to solve the problem that the installation requires manual labor and consumes a lot of force to limit, discloses: a pressing block 7 is nested inside the positioning block 4, and sliders 12 are fixedly installed on the outer sides of the upper and lower ends of the pressing block 7, and a slide groove 13 is provided on the inner wall of the positioning block 4, and the slider 12 is connected to the slide groove 13 in a sliding connection. An automatic expansion limit mechanism is provided on the left side of the pressing block 7, and the automatic expansion limit mechanism is provided with a limited blocking rod 9, and the middle end of the limited blocking rod 9 passes through the installed positioning block 4, and the inner side of the limited blocking rod 9 is inclined, and the bottom position of the limited blocking rod 9 is aligned with the inner side of the pressing block 7. Corresponding to the side position, a fixing plate 10 is fixedly installed on the middle end of the limit blocking rod 9, and a return spring 11 is fixedly installed on the outer side of the fixing plate 10, and the outer side of the return spring 11 is fixedly installed on the positioning block 4, and the return spring 11 is nested in the surface of the limit blocking rod 9, and the upper and lower ends of the pressing block 7 are provided with card slots 8, and the card slots 8 are arranged corresponding to the inner shape of the limit blocking rod 9, and an adjusting slot 14 is opened inside the pressing block 7, and a dial plate 15 is nested inside the adjusting slot 14, and the shape of the dial plate 15 is "T" shape, and a push plate 16 is fixedly installed on the upper left end of the dial plate 15, and the push plate 16 is located inside the card slot 8;

[0035] After the main rod 1 is installed, the pressing block 7 on the right side is installed, and the pressing block 7 slides toward the inside of the positioning block 4 along the sliding groove 13 through the sliding block 12. At this time, the left side of the pressing block 7 squeezes the inclined position of the bottom of the limiting blocking rod 9. As the pressing block 7 is embedded, the limiting blocking rod 9 moves outward to squeeze the return spring 11 through the fixing plate 10 until the bottom of the limiting blocking rod 9 corresponds to the position of the slot 8. The limiting blocking rod 9 is engaged with the pressing block 7 in the slot 8, and the outer side of the limiting blocking rod 9 extends outward, which can limit the engineering machinery installed on the main rod 1 to prevent the engineering machinery from falling during use. The staff needs to use a large force to limit and fix it, which saves the physical strength needed by the staff. When the pin shaft needs to be removed or the engineering machinery on its surface needs to be removed, the dial plate 15 inside the pressing block 7 is pushed outward. While the dial plate 15 slides outward along the inside of the adjusting groove 14, the push plate 16 is fixedly installed on its outside. The push plate 16 pushes the limit blocking rod 9 outward inside the slot 8, so that the limit blocking rod 9 is disengaged from the engagement of the slot 8. At this time, the pressing block 7 can be pulled to the right until the limit blocking rod 9 is reset and retracted into the positioning block 4 under the elastic force of the reset spring 11 itself, so that the limit can be cancelled, which is convenient for the staff to use.

[0036] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An anti-fatigue pin for engineering machinery, comprising a main rod (1) and a connecting head (3) fixedly mounted on the right side of the main rod (1), wherein a positioning block (4) is fixedly mounted on the right side of the connecting head (3); Features: The outer surface of the main rod (1) is wrapped with a tensile layer (5), and an anti-fatigue corrosion mechanism is provided on the outer side of the tensile layer (5); A pressing block (7) is nested inside the positioning block (4), and sliding blocks (12) are fixedly installed on the outer sides of the upper and lower ends of the pressing block (7), and a sliding groove (13) is provided on the inner wall of the positioning block (4), and the connection between the sliding block (12) and the sliding groove (13) is a sliding connection, and an automatic expansion limit mechanism is provided on the left side of the pressing block (7).

2. The anti-fatigue pin for engineering machinery according to claim 1, characterized in that: The left and right edge positions of the main body rod (1) are provided with an inclined arc section (2), and the shape of the inclined arc section (2) is set in an arc shape.

3. The anti-fatigue pin for engineering machinery according to claim 1, characterized in that: The anti-fatigue corrosion mechanism is provided with an anti-corrosion layer (6), and the inner side of the anti-corrosion layer (6) is fixedly mounted on the outer surface of the anti-tension layer (5).

4. The anti-fatigue pin for engineering machinery according to claim 3, characterized in that: The anti-corrosion layer (6) is wrapped around the surface of the anti-tensile layer (5), and the anti-corrosion layer (6) is made of stainless steel, and the anti-tensile layer (5) is made of aluminum alloy.

5. The anti-fatigue pin for engineering machinery according to claim 1, characterized in that: The automatic deployment limit mechanism is provided with a limit blocking rod (9), and the middle end of the limit blocking rod (9) penetrates the mounting positioning block (4), and the inner side of the limit blocking rod (9) is inclined, and the bottom position of the limit blocking rod (9) corresponds to the inner side position of the pressing block (7).

6. The anti-fatigue pin for engineering machinery according to claim 5, characterized in that: A fixing plate (10) is fixedly mounted on the middle end of the position-limiting blocking rod (9), and a return spring (11) is fixedly mounted on the outer side of the fixing plate (10), and the outer side of the return spring (11) is fixedly mounted on the positioning block (4), and the return spring (11) is nested in the surface of the position-limiting blocking rod (9).

7. The anti-fatigue pin for engineering machinery according to claim 6, characterized in that: The pressing block (7) is provided with a card slot (8) at both upper and lower ends, and the card slot (8) is arranged corresponding to the shape of the inner side of the limit blocking rod (9), and an adjustment slot (14) is provided inside the pressing block (7), and a dial plate (15) is nested inside the adjustment slot (14), the dial plate (15) is in a "T" shape, and a push plate (16) is fixedly mounted on the upper left end of the dial plate (15), and the push plate (16) is located inside the card slot (8).

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