Device for detecting strength of V-shaped belt of agricultural machine

Abstract

The invention discloses an agricultural machine V-shaped belt strength detection device, and relates to the technical field of agricultural machine belt detection, a protection mechanism comprises a fixing frame fixedly connected to a detection table, the fixing frame is fixedly connected with two upper sliding rails and two lower sliding rails, and the upper sliding rails and the lower sliding rails are arranged on the fixing frame. An upper moving plate is connected between the two upper sliding rails in a sliding mode, a lower moving plate is connected between the two lower sliding rails in a sliding mode, and the upper moving plate and the lower moving plate are both connected with mounting plates in a sliding mode. The pressing rollers are attached to the outer sides of the belts, the positions of the left and right adjacent belts are reasonably adjusted, in the process of detecting through the tension mechanism, when the belts are broken, the belts can be shielded and buffered through the pressing rollers, the belts are prevented from being thrown out towards the two sides, and injuries to workers are avoided.

Description

Technical Field

[0001] The invention relates to the technical field of agricultural machinery belt detection, in particular to an agricultural machinery V-belt strength detection device. Background Art

[0002] After searching, the Chinese patent publication number is CN221038444U, and the publication date is 2024-05-28. It discloses a strength detection device for agricultural machinery belts, including a device base and a belt to be tested. A fixed assembly plate is arranged on one side of the top of the device base, and an adjustment assembly plate is arranged on the side of the top of the device base away from the fixed assembly plate. A hydraulic telescopic rod is arranged inside the adjustment assembly plate, and a pull ring is arranged on the side of the hydraulic telescopic rod close to the fixed assembly plate. A tension gauge is arranged on the end of the pull ring away from the hydraulic telescopic rod. A fixed column is arranged on the side of the top of the device base close to the fixed assembly plate, and a mobile slide is arranged inside the device base. A sliding column is arranged above the mobile slide. A rotating shaft is arranged on one side of the sliding column and the fixed column, and a sleeve is arranged on the circumferential side wall surface of the rotating shaft. Both sleeves are plugged with the belt to be tested. The utility model sets a fixed column, a sliding column and a tension gauge, and the fixed column sleeve does not move. The sliding column sleeve and the tension gauge apply tensile force to the belt under the pull of the hydraulic telescopic rod to obtain accurate and effective strength detection data. However, when the device is in use, since the device is not equipped with corresponding protective measures, the belt will break under the action of tension. When the breaking part occurs between the two sleeves, the broken belt will be thrown to both sides. During the inspection process, there will be staff on site, and the broken belt will cause harm to the staff. Summary of the invention

[0003] The object of the present invention is to provide a V-belt strength detection device for agricultural machinery to solve the problems mentioned in the above background technology.

[0004] The purpose of the present invention can be achieved through the following technical solutions:

[0005] A V-belt strength testing device for agricultural machinery comprises a testing platform, wherein a first sleeve and a vertical plate are fixedly connected to the top of the testing platform, a horizontal plate is slidably connected to the vertical plate, a second sleeve is fixedly connected to the horizontal plate, a tension mechanism is arranged between the vertical plate and the horizontal plate, and a protection mechanism is arranged on the testing platform for protecting the belt when it breaks.

[0006] The protection mechanism includes a fixed frame fixedly connected to the detection table, an upper slide rail and a lower slide rail are respectively fixedly connected to the fixed frame, two of the upper slide rails and two of the lower slide rails are provided, an upper movable plate is slidably connected between the two upper slide rails, a lower movable plate is slidably connected between the two lower rails, a mounting plate is slidably connected to the upper movable plate and the lower movable plate, the two mounting plates are connected by a synchronization mechanism, the upper movable plate and the lower movable plate are connected by an adjustment mechanism, and a pressure roller is provided on the mounting plate.

[0007] As a further solution of the present invention: the adjustment mechanism includes a bidirectional screw rod rotatably connected to the fixed frame and a handle rotatably connected to the detection platform, the bidirectional screw rod is threadedly connected to the upper movable plate and the lower movable plate respectively, the bidirectional screw rod is rotatably connected to the detection platform, the bidirectional screw rod and the handle are fixedly connected with pulleys, and the two pulleys are connected by belt transmission.

[0008] As a further solution of the present invention: the synchronization mechanism includes a first through hole extending through the top of the mounting plate, an insertion rod is provided between two of the first through holes, and an anti-dropping block is fixedly connected to the top of the insertion rod.

[0009] As a further solution of the present invention: a second through hole is formed through the top of the mounting plate, a sliding rod is slidably connected in the second through hole, the sliding rod is fixedly connected to the pressure roller, and a first spring is sleeved on the outer surface of the sliding rod.

[0010] As a further solution of the present invention: one end of the slide rod is fixedly connected to a limiting block, the limiting block is fitted with the mounting plate, and the first spring is fixedly connected to the mounting plate and the pressure roller respectively.

[0011] As a further solution of the present invention: a first cylinder is fixedly connected to the vertical plate, a buffer plate is fixedly connected to the output end of the first cylinder, a second spring is fixedly connected to one side of the buffer plate, and a push plate used in conjunction with the second spring is fixedly connected to the bottom of the horizontal plate.

[0012] As a further solution of the present invention: the tension mechanism includes a second cylinder fixedly connected to the vertical plate, the output end of the second cylinder is connected to a connecting plate through a tension gauge, and the connecting plate is fixedly connected to the horizontal plate.

[0013] As a further solution of the present invention: one end of the bidirectional screw is rotationally connected to the detection platform, and a plurality of the second springs are provided.

[0014] The present invention provides a V-belt strength detection device for agricultural machinery. Compared with the prior art, it has the following beneficial effects:

[0015] (1) In the present application, after the belt to be tested is put on the first sleeve and the second sleeve, the position of the pressure roller is adjusted up, down, left and right so that the pressure roller fits the outside of the belt, and the positions of the adjacent belts on the left and right are reasonably adjusted. During the process of testing using a tension mechanism, when the belt breaks, the pressure roller can be used to shield and buffer the belt to prevent the belt from being thrown to both sides, thereby avoiding injuries to the staff.

[0016] (2) The present application uses the first cylinder, the buffer plate, the second spring and the push plate in combination to prevent the dynamometer and the horizontal plate from continuing to move to one side due to inertia when the belt breaks, thereby preventing a collision between the dynamometer and the vertical plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a first perspective stereogram of the present invention;

[0018] Figure 2 It is a second viewing angle stereogram of the present invention;

[0019] Figure 3 is a three-dimensional diagram of the protection mechanism of the present invention;

[0020] Figure 4 This is a disassembled view of the mounting plate, synchronization mechanism and pressure roller of the present invention.

[0021] In the figure: 1. test table; 2. first sleeve; 3. vertical plate; 4. horizontal plate; 5. second sleeve; 6. tension mechanism; 61. second cylinder; 62. dynamometer; 63. connecting plate; 7. protection mechanism; 71. fixing frame; 72. upper slide rail; 73. lower slide rail; 74. upper movable plate; 75. lower movable plate; 76. mounting plate; 77. synchronization mechanism; 771. first through hole; 772. plug rod; 773. anti-slip block; 78. adjustment mechanism; 781. bidirectional screw rod; 782. grip; 783. pulley; 784. belt; 79. pressure roller; 8. second through hole; 9. slide rod; 10. first spring; 11. limit block; 12. first cylinder; 13. buffer plate; 14. second spring; 15. push plate. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] Embodiment 1

[0024] See also Figure 1-4As shown, the present invention is a V-belt strength testing device for agricultural machinery, comprising a testing platform 1, wherein the top of the testing platform 1 is respectively fixedly connected with a first sleeve 2 and a vertical plate 3, wherein a horizontal plate 4 is slidably connected to the vertical plate 3, wherein a second sleeve 5 is fixedly connected to the horizontal plate 4, wherein a tension mechanism 6 is arranged between the vertical plate 3 and the horizontal plate 4, wherein the testing platform 1 is provided with a protection mechanism 7 for protecting the belt when it is broken; wherein the protection mechanism 7 comprises a fixed frame 71 fixedly connected to the testing platform 1, wherein an upper slide rail 72 and a lower slide rail 73 are respectively fixedly connected to the fixed frame 71, wherein two upper slide rails 72 and two lower slide rails 73 are each provided, wherein an upper movable plate 74 is slidably connected between the two upper slide rails 72, and an upper movable plate 74 is slidably connected between the two lower slide rails 73. A lower movable plate 75 is slidably connected, and mounting plates 76 are slidably connected to the upper movable plate 74 and the lower movable plate 75. The two mounting plates 76 are connected by a synchronization mechanism 77, and the upper movable plate 74 and the lower movable plate 75 are connected by an adjustment mechanism 78. A pressure roller 79 is provided on the mounting plate 76. After the belt to be tested is put on the first sleeve 2 and the second sleeve 5, the position of the pressure roller 79 is adjusted up, down, left and right, so that the pressure roller 79 fits the outside of the belt, and the positions of the adjacent belts on the left and right are reasonably adjusted. During the detection process using the tension mechanism 6, when the belt breaks, the pressure roller 79 can be used to shield and buffer the belt to prevent the belt from being thrown out to both sides and causing harm to the staff.

[0025] The adjusting mechanism 78 includes a bidirectional screw rod 781 rotatably connected to the fixed frame 71 and a handle 782 rotatably connected to the testing platform 1. The bidirectional screw rod 781 is threadedly connected to the upper movable plate 74 and the lower movable plate 75 respectively. The bidirectional screw rod 781 is rotatably connected to the testing platform 1. The bidirectional screw rod 781 and the handle 782 are fixedly connected with pulleys 783. The two pulleys 783 are connected by belts 784. By rotating the handle 782, the transmission of the pulleys 783 and the belt 784 drives the bidirectional screw rod 781 to rotate, thereby driving the upper movable plate 74 and the lower movable plate 75 to move closer to the belt to be tested, so that the upper movable plate 74 and the lower movable plate 75 drive the mounting plates 76 on each of them to move, so that the pressure roller 79 fits the outer side of the belt to be tested.

[0026] The synchronization mechanism 77 includes a first through hole 771 extending through the top of the mounting plate 76, an insertion rod 772 is provided between the two first through holes 771, and an anti-drop block 773 is fixedly connected to the top of the insertion rod 772. By moving the mounting plate 76, the mounting plates 76 in the horizontal direction are placed at equal intervals, and under the action of the synchronization mechanism 77, the adjacent mounting plates 76 in the vertical direction are moved synchronously.

[0027] A second through hole 8 is formed through the top of the mounting plate 76 , a slide rod 9 is slidably connected in the second through hole 8 , the slide rod 9 is fixedly connected to the pressure roller 79 , and a first spring 10 is sleeved on the outer surface of the slide rod 9 .

[0028] One end of the slide rod 9 is fixedly connected to a limit block 11 , and the limit block 11 is in contact with the mounting plate 76 . The first spring 10 is fixedly connected to the mounting plate 76 and the pressure roller 79 , respectively.

[0029] The tension mechanism 6 includes a second cylinder 61 fixedly connected to the vertical plate 3. The second cylinder 61 is electrically connected to an external power supply and is controlled by an external control program. The output end of the second cylinder 61 is connected to a connecting plate 63 through a dynamometer 62. The dynamometer 62 can be replaced by a sensor, and the sensor is connected to an external reading device, so that the tension change can be known more intuitively. The connecting plate 63 is fixedly connected to the cross plate 4, and the position of the second sleeve 5 is adjusted according to the length of the belt to be tested. When adjusting, the second cylinder 61 is turned on, and then the second cylinder 61 will push the connecting plate 63 through the dynamometer 62, and then drive the cross plate 4 to move, and then drive the push plate 15 to move, and the movement of the cross plate 4 will bring the second sleeve 5 to a suitable position. At the same time, the second cylinder 61 pulls the dynamometer 62, thereby pulling the belt to be tested to one side through the connecting plate 63, the cross plate 4 and the second sleeve 5, and the dynamometer 62 can display the strength of the applied tensile force in real time.

[0030] One end of the bidirectional screw rod 781 is rotatably connected to the detection platform 1 , and a plurality of second springs 14 are provided.

[0031] Embodiment 2

[0032] Based on Example 1, see Figure 1 and Figure 2 shown.

[0033] A first cylinder 12 is fixedly connected to the vertical plate 3, the first cylinder 12 is electrically connected to an external power supply and is controlled by an external control program, a buffer plate 13 is fixedly connected to the output end of the first cylinder 12, a second spring 14 is fixedly connected to one side of the buffer plate 13, and a push plate 15 used in conjunction with the second spring 14 is fixedly connected to the bottom of the horizontal plate 4. By using the first cylinder 12, the buffer plate 13, the second spring 14 and the push plate 15 in conjunction with each other, when the belt breaks, it can prevent the dynamometer 62 and the horizontal plate 4 from continuing to move to one side due to inertia, causing a collision between the dynamometer 62 and the vertical plate 3.

[0034] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0035] The working principle of the present invention is as follows: the position of the second sleeve 5 is adjusted according to the length of the belt to be tested. During the adjustment, the second cylinder 61 is turned on, and the second cylinder 61 pushes the connecting plate 63 through the dynamometer 62, and then drives the transverse plate 4 to move, and then drives the push plate 15 to move, and the movement of the transverse plate 4 brings the second sleeve 5 to a suitable position; then, the belt to be tested is put on the second sleeve 5 and the second sleeve 5, and then the second cylinder 61 is used to drive the second sleeve 5 to move back, so that the belt to be tested is in a taut state; then, the handle 782 is turned, and then the pulley 783 and the belt 783 are tightened. The transmission effect of 84 drives the bidirectional screw rod 781 to rotate, thereby driving the upper movable plate 74 and the lower movable plate 75 to move closer to the belt to be detected, so that the upper movable plate 74 and the lower movable plate 75 drive the mounting plates 76 on each of them to move, so that the pressure roller 79 fits the outer side of the belt to be detected; then, by moving the mounting plates 76, the mounting plates 76 in the horizontal direction are placed at equal intervals, and under the action of the synchronization mechanism 77, the adjacent mounting plates 76 in the vertical direction are moved synchronously; then, the first cylinder 12 is turned on, and the first cylinder 12 drives the buffer plate 13 to move, Thereby, the second spring 14 is moved to a suitable position; thereafter, the second cylinder 61 is turned on, and the dynamometer 62 is subjected to force, thereby pulling the belt to be tested to one side through the connecting plate 63, the cross plate 4 and the second sleeve 5, and the dynamometer 62 can display the applied tensile force strength in real time. When the belt to be tested reaches the limit and breaks (the part between the second sleeve 5 and the first sleeve 2), the belt to be tested will be thrown onto the pressure roller 79, and the pressure roller 79 can block the belt to be tested, and the belt to be tested is buffered by utilizing the second through hole 8, the slide bar 9 and the first spring 10, so that the belt to be tested can be effectively prevented from breaking. During the detection process using the tension mechanism 6, when the belt breaks, the pressure roller 79 can be used to block and buffer the belt to prevent the belt from being thrown to both sides and causing harm to the staff; thereafter, when the belt to be detected breaks, due to inertia, the second cylinder 61 will continue to drive the dynamometer 62 to move to one side, thereby causing contact between the push plate 15 and the second spring 14, and 14 is used to buffer the push plate 15, thereby buffering the cross plate 4, the connecting plate 63, the second sleeve 5 and the dynamometer 62, avoiding collision between the dynamometer 62 and the vertical plate 3, and protecting the dynamometer 62.

[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. A V-belt strength testing device for agricultural machinery, comprising a testing platform (1), characterized in that: The top of the detection platform (1) is respectively fixedly connected with a first sleeve (2) and a vertical plate (3); a horizontal plate (4) is slidably connected to the vertical plate (3); a second sleeve (5) is fixedly connected to the horizontal plate (4); a tension mechanism (6) is provided between the vertical plate (3) and the horizontal plate (4); and a protection mechanism (7) for protecting the belt when it breaks is provided on the detection platform (1); The protection mechanism (7) comprises a fixed frame (71) fixedly connected to the detection platform (1), an upper slide rail (72) and a lower slide rail (73) are respectively fixedly connected to the fixed frame (71), two of the upper slide rails (72) and two of the lower slide rails (73) are provided, an upper movable plate (74) is slidably connected between the two upper slide rails (72), a lower movable plate (75) is slidably connected between the two lower slide rails (73), a mounting plate (76) is slidably connected to the upper movable plate (74) and the lower movable plate (75), the two mounting plates (76) are connected via a synchronization mechanism (77), the upper movable plate (74) and the lower movable plate (75) are connected via an adjustment mechanism (78), and a pressure roller (79) is provided on the mounting plate (76).

2. The agricultural machinery V-belt strength detection device according to claim 1, characterized in that: The adjusting mechanism (78) comprises a bidirectional screw rod (781) rotatably connected to the fixing frame (71) and a handle (782) rotatably connected to the detection platform (1); the bidirectional screw rod (781) is threadedly connected to the upper movable plate (74) and the lower movable plate (75) respectively; the bidirectional screw rod (781) is rotatably connected to the detection platform (1); the bidirectional screw rod (781) and the handle (782) are both fixedly connected with pulleys (783); and the two pulleys (783) are connected by a belt (784).

3. The agricultural machinery V-belt strength detection device according to claim 1, characterized in that: The synchronization mechanism (77) comprises a first through hole (771) penetrating through the top of the mounting plate (76), an insertion rod (772) is provided between the two first through holes (771), and an anti-dropping block (773) is fixedly connected to the top of the insertion rod (772).

4. The agricultural machinery V-belt strength detection device according to claim 1, characterized in that: A second through hole (8) is formed through the top of the mounting plate (76), a slide rod (9) is slidably connected in the second through hole (8), the slide rod (9) is fixedly connected to the pressure roller (79), and a first spring (10) is sleeved on the outer surface of the slide rod (9).

5. The agricultural machinery V-belt strength detection device according to claim 4, characterized in that: One end of the slide rod (9) is fixedly connected to a limit block (11), the limit block (11) is in close contact with the mounting plate (76), and the first spring (10) is fixedly connected to the mounting plate (76) and the pressure roller (79) respectively.

6. The agricultural machinery V-belt strength detection device according to claim 2, characterized in that: A first cylinder (12) is fixedly connected to the vertical plate (3), a buffer plate (13) is fixedly connected to the output end of the first cylinder (12), a second spring (14) is fixedly connected to one side of the buffer plate (13), and a push plate (15) used in conjunction with the second spring (14) is fixedly connected to the bottom of the horizontal plate (4).

7. The agricultural machinery V-belt strength detection device according to claim 1, characterized in that: The tension mechanism (6) comprises a second cylinder (61) fixedly connected to the vertical plate (3); the output end of the second cylinder (61) is connected to a connecting plate (63) via a tension gauge (62); and the connecting plate (63) is fixedly connected to the horizontal plate (4).

8. The agricultural machinery V-belt strength detection device according to claim 6, characterized in that: One end of the bidirectional screw rod (781) is rotatably connected to the detection platform (1), and a plurality of the second springs (14) are provided.

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