Engineering machinery seat suspension

Abstract

The utility model relates to the technical field of seat suspensions, in particular to an engineering machinery seat suspension, which improves the convenience for passengers with different weights to adjust different damping strengths and improves the use reliability. Comprising a first supporting seat and a plurality of damping rods, and the damping rods are installed at the top end of the first supporting seat; the device further comprises an adjusting device, a top plate, two first sliding blocks and two supporting arms, the top plate is installed at the moving ends of the multiple damping rods, a guide groove is formed in the first supporting base, the two first sliding blocks are slidably installed on the guide groove of the first supporting base, and the bottom ends of the two supporting arms are rotationally installed at the top ends of the two first sliding blocks correspondingly. The top ends of the two sets of supporting arms are rotationally installed at the bottom end of the top plate, the two sets of supporting arms are arranged to be inclined, and an adjusting device is arranged on the first supporting base and used for providing different elastic strength for the two sets of first sliding blocks.

Description

Technical Field

[0001] The utility model relates to the technical field of seat suspensions, in particular to an engineering machinery seat suspension. Background Art

[0002] In the field of construction machinery, the comfort of the driver's seat is one of the important considerations. As the engineering working environment becomes increasingly complex and harsh, drivers work for long periods of time in an environment with high vibration and impact, and the requirements for the seat suspension system are becoming higher and higher.

[0003] As described in the patent with the prior art authorization announcement number CN206383865U, the seat suspension includes a fixed substrate, a seat mounting plate, a scissor-type bracket, an electromagnetic force generator, a detector, an adjustable resistor, and a processor. The seat mounting plate is floatingly connected to the fixed substrate through the scissor-type bracket, the electromagnetic force generator is connected to the scissor-type bracket, the detector detects the displacement of the seat mounting plate and / or the acceleration of the seat mounting plate, the adjustable resistor is connected in series with the electromagnetic force generator to form an electrical connection loop, the processor is electrically connected to the adjustable resistor and the detector to form a control loop, the processor calculates the target resistance value of the adjustable resistor according to the displacement and / or acceleration, and adjusts the resistance value of the adjustable resistor to be equal to the target resistance value, thereby adjusting the reverse electromagnetic torque output by the electromagnetic force generator.

[0004] However, during the use of the suspension, it was found that the suspension is not convenient for adjusting the pre-stretch length of the spring, which reduces the convenience of passengers of different weights adjusting different shock absorption intensities, and the suspension uses current to control damping, which reduces the reliability of use. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides an engineering machinery seat suspension which improves the convenience for passengers of different weights to adjust different shock absorption strengths and improves the reliability of use.

[0006] The utility model discloses an engineering machinery seat suspension, comprising a first support seat and multiple groups of damping rods, wherein the multiple groups of damping rods are all mounted on the top of the first support seat; the utility model also comprises an adjusting device, a top plate, two groups of first sliding blocks and two groups of supporting arms, wherein the top plate is mounted on the movable ends of the multiple groups of damping rods, a guide groove is arranged on the first support seat, the two groups of first sliding blocks are all slidably mounted on the guide groove of the first support seat, the bottom ends of the two groups of supporting arms are respectively rotatably mounted on the top ends of the two groups of first sliding blocks, the top ends of the two groups of supporting arms are both rotatably mounted on the bottom end of the top plate, and the two groups of supporting arms are respectively set to an inclination angle, an adjusting device is arranged on the first support seat, and the adjusting device is used to adjust the two groups of first sliding blocks The blocks provide different elastic strengths; the seat is installed on the top of the top plate. When a person sits on the seat, the person's weight presses the top plate downward, so that the top plate pushes the two groups of first sliding blocks to slide outward and toward each other through the two groups of support arms. At this time, the two groups of first sliding blocks are provided with elastic support through the adjusting device, and at the same time, the movement of the top plate is damped by multiple groups of damping rods, so that the two groups of first sliding blocks shock-absorbently buffer the seat. The supporting elastic strength of the two groups of first sliding blocks is adjusted through the adjusting device, so that the two groups of first sliding blocks provide different supporting forces to the top plate, thereby improving the convenience of passengers of different weights to adjust different shock-absorbing strengths and improving the reliability of the suspension.

[0007] Preferably, the adjusting device comprises a second supporting seat, a guide column, two groups of springs, two groups of second sliding blocks, a bidirectional lead screw and a first motor, the second supporting seat being mounted on the bottom end of the first supporting seat, a slide groove being provided on the second supporting seat, the two groups of second sliding blocks being slidably mounted on the slide groove, the left and right ends of the guide column being mounted on the inner side wall of the guide groove, the two groups of first sliding blocks being slidably mounted on the guide column, the two groups of springs being respectively fitted on the outer side wall of the guide column, the upper parts of the two groups of second sliding blocks being respectively slidably mounted on the outer side wall of the guide column, and the two groups of second sliding blocks providing support for the two groups of springs respectively, the left and right ends of the bidirectional lead screw being rotatably mounted on the inner side wall of the slide groove, the two groups of second sliding blocks The lower part is respectively screwed on the left and right parts of the outer wall of the two-way screw, the first motor is installed on the outer wall of the second support seat, and the output end of the first motor is connected to the end of the two-way screw; the two-way screw is driven to rotate by turning on the first motor, and the two-way screw drives the two groups of second sliders to move closer to or away from each other after the rotation, and the compression strength of the two groups of springs is increased after the two groups of second sliders move closer to each other, and the compression strength of the two groups of springs is reduced after the two groups of second sliders move away from each other, so that the pre-stretching length of the two groups of springs is adjusted by the cooperation of the two groups of second sliders and the two groups of first sliders, and the different shock absorption strengths of the seat are adjusted, thereby improving the adjustment convenience and improving the reliability of the suspension use.

[0008] Preferably, it also includes a base, a turntable, a worm wheel, a worm and a second motor, the bottom end of the second support seat is connected to the top end of the turntable, the lower part of the turntable is rotatably mounted on the base, the worm wheel is mounted on the outer wall of the turntable, the worm is rotatably mounted on the inner wall of the base, the worm is meshed with the worm wheel, the second motor is mounted on the inner wall of the base, and the output end of the second motor is connected to the worm; the worm is driven to rotate by the second motor, so that the worm drives the turntable to rotate through the engagement with the worm wheel, and the turntable drives the second support seat to rotate and adjust, thereby improving the convenience and flexibility of seat orientation adjustment.

[0009] Preferably, it also includes multiple groups of fixed seats and multiple groups of limit rods, the multiple groups of fixed seats are all installed on the top of the first support seat, the lower parts of the multiple groups of limit rods are respectively slidably installed on the multiple groups of fixed seats, and the top ends of the multiple groups of limit rods are all connected to the bottom end of the top plate; when the top plate moves up and down, it drives the multiple groups of limit rods to slide up and down, and the movement of the limit rods is limited by the multiple groups of fixed seats, thereby improving the convenience of limiting the upward movement of the top plate.

[0010] Preferably, it also includes multiple groups of connecting parts, which are all installed on the outer side wall of the base; by providing multiple groups of connecting parts, the convenience of the installation operation of the seat suspension and the vehicle body is improved.

[0011] Preferably, it also includes multiple groups of bolts, which are respectively installed on multiple groups of connecting parts. By providing multiple groups of bolts, the convenience of loading and unloading the connecting parts and the vehicle body is improved, and the firmness of the seat suspension installation is improved.

[0012] Preferably, it also includes a mounting hole, which is arranged on the top plate; by providing the mounting hole, the convenience of installing the seat on the top plate is improved.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows: the seat is installed on the top of the top plate, and when a person sits on the seat, the weight of the person presses the top plate downward, so that the top plate pushes the two groups of first sliding blocks to slide outward and toward each other through the two groups of support arms. At this time, the two groups of first sliding blocks are provided with elastic support through the adjusting device, and at the same time, damping is provided to the movement of the top plate through multiple groups of damping rods, so that the two groups of first sliding blocks shock-absorbing and buffering the seat, and the supporting elastic strength of the two groups of first sliding blocks is adjusted through the adjusting device, so that the two groups of first sliding blocks provide different supporting forces to the top plate, thereby improving the convenience of passengers of different weights to adjust different shock-absorbing strengths and improving the reliability of the suspension. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the axonometric structure of the utility model;

[0015] Figure 2 It is a schematic diagram of the axonometric structure of the connection between the top plate and the mounting holes, etc.;

[0016] Figure 3is a schematic diagram of an axonometric partial structure of the connection between the first sliding block and the support arm, etc.;

[0017] Figure 4 It is a schematic diagram of the axonometric partial structure of the connection between the turntable and the worm gear, etc.;

[0018] Figure 5 It is a schematic diagram of the axonometric local structure of the connection between the first support seat and the damping rod, etc.

[0019] Markings in the attached drawings: 1. first support seat; 2. damping rod; 3. top plate; 4. first slider; 5. support arm; 6. second support seat; 7. guide column; 8. spring; 9. second slider; 10. bidirectional screw; 11. first motor; 12. base; 13. turntable; 14. worm gear; 15. worm; 16. second motor; 17. fixed seat; 18. limit rod; 19. connecting piece; 20. bolt; 21. mounting hole. DETAILED DESCRIPTION

[0020] In order to facilitate the understanding of the utility model, the utility model will be described more comprehensively below with reference to the relevant drawings. The utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and comprehensive. Example 1

[0021] like Figures 1 to 5 As shown, a construction machinery seat suspension of the utility model comprises a first support seat 1 and multiple groups of damping rods 2, and the multiple groups of damping rods 2 are all mounted on the top of the first support seat 1; it also comprises an adjusting device, a top plate 3, two groups of first sliders 4 and two groups of support arms 5, the top plate 3 is mounted on the moving ends of the multiple groups of damping rods 2, a guide groove is provided on the first support seat 1, the two groups of first sliders 4 are slidably mounted on the guide groove of the first support seat 1, the bottom ends of the two groups of support arms 5 are respectively rotatably mounted on the top ends of the two groups of first sliders 4, the top ends of the two groups of support arms 5 are rotatably mounted on the bottom ends of the top plate 3, and the two groups of support arms 5 are respectively set to an inclined angle, and an adjusting device is provided on the first support seat 1, and the adjusting device is used to provide different elastic strengths to the two groups of first sliders 4;

[0022] like Figure 3As shown, the adjusting device includes a second support seat 6, a guide column 7, two groups of springs 8, two groups of second sliders 9, a bidirectional lead screw 10 and a first motor 11. The second support seat 6 is mounted on the bottom end of the first support seat 1. A slide groove is provided on the second support seat 6. The two groups of second sliders 9 are both slidably mounted on the slide groove. The left and right ends of the guide column 7 are mounted on the inner side wall of the guide groove. The two groups of first sliders 4 are both slidably mounted on the guide column 7. The two groups of springs 8 are respectively fitted on the outer side wall of the guide column 7. The upper parts of the two groups of second sliders 9 are respectively slidably mounted on the outer side wall of the guide column 7, and the two groups of second sliders 9 provide support for the two groups of springs 8 respectively. The left and right ends of the bidirectional lead screw 10 are rotatably mounted on the inner side wall of the slide groove. The lower parts of the two groups of second sliders 9 are respectively screwed on the left and right parts of the outer side wall of the bidirectional lead screw 10. The first motor 11 is mounted on the outer side wall of the second support seat 6, and the output end of the first motor 11 is connected to the end of the bidirectional lead screw 10.

[0023] In this embodiment, the seat is installed on the top of the top plate 3. When a person sits on the seat, the person's weight presses the top plate 3 downward, so that the top plate 3 pushes the two groups of first sliders 4 to slide outward and toward each other through the two groups of support arms 5. At this time, the two groups of first sliders 4 are provided with elastic support through the adjusting device, and at the same time, the movement of the top plate 3 is damped by multiple groups of damping rods 2, so that the two groups of first sliders 4 shock-absorbing and buffering the seat. The supporting elastic strength of the two groups of first sliders 4 is adjusted through the adjusting device, so that the two groups of first sliders 4 provide different supporting forces to the top plate 3, thereby improving the convenience of passengers of different weights to adjust different shock-absorbing strengths and improving the reliability of the suspension. Example 2

[0024] On the basis of Example 1, Figure 4 As shown, a construction machinery seat suspension of the utility model also includes a base 12, a turntable 13, a worm wheel 14, a worm 15 and a second motor 16, the bottom end of the second support seat 6 is connected to the top of the turntable 13, the lower part of the turntable 13 is rotatably mounted on the base 12, the worm wheel 14 is sleeved on the outer wall of the turntable 13, the worm 15 is rotatably mounted on the inner wall of the base 12, the worm 15 is meshed with the worm wheel 14, the second motor 16 is mounted on the inner wall of the base 12, and the output end of the second motor 16 is connected to the worm 15;

[0025] like Figure 5 As shown, it also includes multiple groups of fixed seats 17 and multiple groups of limiting rods 18, the multiple groups of fixed seats 17 are all installed on the top of the first support seat 1, the lower parts of the multiple groups of limiting rods 18 are slidably installed on the multiple groups of fixed seats 17, and the top ends of the multiple groups of limiting rods 18 are connected to the bottom end of the top plate 3;

[0026] like Figure 2 As shown, it also includes multiple groups of connecting members 19, and the multiple groups of connecting members 19 are all installed on the outer side wall of the base 12;

[0027] like Figure 2 As shown, it also includes multiple groups of bolts 20, and the multiple groups of bolts 20 are respectively mounted on the multiple groups of connecting members 19;

[0028] like Figure 2 As shown, it also includes a mounting hole 21, which is arranged on the top plate 3;

[0029] In this embodiment, the bidirectional lead screw 10 is driven to rotate by turning on the first motor 11. After the bidirectional lead screw 10 rotates, it drives the two groups of second sliders 9 to move closer to or away from each other. After the two groups of second sliders 9 move closer to each other, the compression strength of the two groups of springs 8 is increased. After the two groups of second sliders 9 move away from each other, the compression strength of the two groups of springs 8 is reduced. Therefore, the pre-stretching length of the two groups of springs 8 is adjusted by the two groups of second sliders 9 in cooperation with the two groups of first sliders 4, and the different shock absorption strengths of the seat are adjusted, thereby improving the adjustment convenience and the reliability of the suspension. The worm 15 is driven to rotate by the second motor 16, so that the worm 15 drives the turntable 13 to rotate through the engagement with the worm wheel 14, and the turntable 13 drives the second support seat 6 to rotate and adjust, thereby improving the convenience and flexibility of seat orientation adjustment.

[0030] The utility model provides a construction machinery seat suspension, which, when working, installs the seat on the top of a top plate 3. When a person sits on the seat, the person's weight presses the top plate 3 downward, so that the top plate 3 pushes the two groups of first sliding blocks 4 to slide outwardly toward each other through the two groups of support arms 5. At this time, elastic support is provided to the two groups of first sliding blocks 4 through an adjusting device, and damping is provided to the movement of the top plate 3 through multiple groups of damping rods 2, so that the two groups of first sliding blocks 4 perform shock absorption and buffering on the seat, and the supporting elastic strength of the two groups of first sliding blocks 4 is adjusted through the adjusting device, so that the two groups of first sliding blocks 4 provide different supporting forces to the top plate 3.

[0031] The damping rod 2, the first motor 11 and the second motor 16 of the engineering machinery seat suspension of the utility model are purchased on the market, and technicians in the industry only need to install and operate them according to the accompanying instruction manual without the need for creative work by technicians in this field.

[0032] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A construction machinery seat suspension, comprising a first support seat (1) and a plurality of damping rods (2), wherein the plurality of damping rods (2) are all mounted on the top of the first support seat (1); characterized in that: The utility model also comprises an adjusting device, a top plate (3), two groups of first sliders (4) and two groups of support arms (5), wherein the top plate (3) is mounted on the movable ends of the plurality of groups of damping rods (2), a guide groove is provided on the first support seat (1), the two groups of first sliders (4) are both slidably mounted on the guide groove of the first support seat (1), the bottom ends of the two groups of support arms (5) are respectively rotatably mounted on the top ends of the two groups of first sliders (4), the top ends of the two groups of support arms (5) are both rotatably mounted on the bottom ends of the top plate (3), and the two groups of support arms (5) are respectively set to an inclined angle, and an adjusting device is provided on the first support seat (1), and the adjusting device is used to provide different elastic strengths to the two groups of first sliders (4).

2. The engineering machinery seat suspension according to claim 1, characterized in that: The adjusting device comprises a second support seat (6), a guide column (7), two groups of springs (8), two groups of second sliders (9), a bidirectional lead screw (10) and a first motor (11), wherein the second support seat (6) is mounted on the bottom end of the first support seat (1), a slide groove is provided on the second support seat (6), the two groups of second sliders (9) are both slidably mounted on the slide groove, the left and right ends of the guide column (7) are mounted on the inner side wall of the guide groove, the two groups of first sliders (4) are both slidably mounted on the guide column (7), and the two groups of springs (8) are respectively matched with the set On the outer wall of the guide column (7), the upper parts of the two groups of second sliders (9) are respectively slidably mounted on the outer wall of the guide column (7), and the two groups of second sliders (9) respectively provide support for the two groups of springs (8). The left and right ends of the bidirectional lead screw (10) are rotatably mounted on the inner wall of the slide groove. The lower parts of the two groups of second sliders (9) are respectively screwed on the left and right parts of the outer wall of the bidirectional lead screw (10). The first motor (11) is mounted on the outer wall of the second support seat (6), and the output end of the first motor (11) is connected to the end of the bidirectional lead screw (10).

3. The engineering machinery seat suspension according to claim 2, characterized in that: The invention also comprises a base (12), a rotating disk (13), a worm wheel (14), a worm (15) and a second motor (16), wherein the bottom end of the second support base (6) is connected to the top end of the rotating disk (13), the lower part of the rotating disk (13) is rotatably mounted on the base (12), the worm wheel (14) is sleeved on the outer wall of the rotating disk (13), the worm (15) is rotatably mounted on the inner wall of the base (12), the worm (15) is meshed with the worm wheel (14), the second motor (16) is mounted on the inner wall of the base (12), and the output end of the second motor (16) is connected to the worm (15).

4. The engineering machinery seat suspension according to claim 1, characterized in that: It also includes a plurality of sets of fixed seats (17) and a plurality of sets of limiting rods (18), wherein the plurality of sets of fixed seats (17) are all mounted on the top of the first support seat (1), the lower parts of the plurality of sets of limiting rods (18) are respectively slidably mounted on the plurality of sets of fixed seats (17), and the top ends of the plurality of sets of limiting rods (18) are all connected to the bottom end of the top plate (3).

5. The engineering machinery seat suspension according to claim 3, characterized in that: It also includes a plurality of groups of connecting members (19), and the plurality of groups of connecting members (19) are all mounted on the outer side wall of the base (12).

6. The engineering machinery seat suspension according to claim 5, characterized in that: It also includes a plurality of groups of bolts (20), which are respectively mounted on the plurality of groups of connecting members (19).

7. The engineering machinery seat suspension according to claim 1, characterized in that: It also includes a mounting hole (21), which is arranged on the top plate (3).

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