A power take-off device for preventing belt loss

Abstract

The utility model relates to the technical field of power take-offs, and in particular to an anti-belt loss power take-off, comprising an anti-belt loss power take-off body, an input port and an output shaft, one end of the anti-belt loss power take-off body being fixedly mounted with a connection end, the output shaft being rotatably mounted inside the anti-belt loss power take-off body, the inner side of the anti-belt loss power take-off body being provided with an anti-belt loss structure, and the inner side of the anti-belt loss power take-off body being provided with an anti-belt loss limit structure. The anti-belt loss power take-off can preferentially play the role of squeezing and transmitting torque through a clamping rod, but as the piston pushes forward for too long, the clamping rod will be forced to slide in the reverse direction, and the limit block will fit onto the outer wall of the input shaft, at which time the clamping force of the front end of the clamping rod on the movement of the steel sheet and the friction plate will be weakened, protecting the elastic block from being easily deformed, and making the use effect of the anti-belt loss power take-off better.

Description

Technical Field

[0001] The utility model relates to the technical field of power take-offs, in particular to a belt-loss-proof power take-off. Background Art

[0002] A power take-off is a group or multiple groups of speed gears, also known as a power output device. It is generally composed of a gearbox, a clutch, and a controller. It is connected to the low-speed gear of the gearbox or the output shaft of the auxiliary box to output power to an external working device, such as a lifting pump. The power take-off is generally connected to the drive shaft or directly connected to the gear pump. In Europe and North America, due to the diverse designs and wide variety of power take-offs, power take-off manufacturers have designed different interfaces at the output end of the power take-off to meet different types of interface requirements.

[0003] For example, the authorization announcement number "CN219712124U" is named an anti-belt loss power take-off, in which pre-compressed elastic blocks are arranged between the steel plates to force the steel plates to separate, and the friction plates can move freely in the gaps between the steel plates; it can effectively prevent the generation of belt torque due to incomplete separation of the steel plates, which can not only reduce belt loss, but also reduce clutch wear and improve the working stability of the power take-off. However, the existing anti-belt loss power take-off uses the piston to push the steel plate and the friction plate to fit and rub to prevent the generation of belt torque, but the amplitude of the squeezing of the steel plate and the friction plate by the piston cannot be accurately controlled, which may cause the extrusion pressure between the steel plate and the friction plate pushed by the piston to be too large. At this time, the elastic block at the connection between the friction plate and the steel plate will be easily deformed or fall off due to the excessive extrusion pressure, which makes it difficult to reset the steel plate, affecting the use effect of the anti-belt loss power take-off.

[0004] Meanwhile, the existing anti-belt loss power take-off generally requires multiple bolts around to install the anti-belt loss power take-off on the outside of the vehicle output shaft to achieve the power output function. However, the existing anti-belt loss power take-off is difficult to adapt to more models of vehicles or mechanical installations. Therefore, when the anti-belt loss power take-off is installed on a mechanical vehicle of an inconsistent model, problems such as loose splicing or loose connection are prone to occur, thereby affecting the installation effect of the anti-belt loss power take-off. Summary of the invention

[0005] The utility model aims to solve the problem of poor use effect and poor installation effect of the belt-loss prevention power take-off, and proposes a belt-loss prevention power take-off.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A power take-off device for preventing belt loss is designed, comprising a power take-off device for preventing belt loss, an input port and an output shaft, wherein a connecting end is fixedly mounted on one end of the power take-off device for preventing belt loss, the output shaft is rotatably mounted inside the power take-off device for preventing belt loss, an anti-belt loss structure is arranged on the inner side of the power take-off device for preventing belt loss, an anti-belt loss limiting structure is arranged on the inner side of the power take-off device for preventing belt loss, and an external connecting structure is arranged on the outer side of the power take-off device for preventing belt loss.

[0008] Preferably, the anti-belt loss limiting structure includes a piston and a spring, the piston is fixedly installed on the inner side of the anti-belt loss power take-off body, the ends of the two pistons are movably connected to the outer side of the steel sheet, the insides of the two pistons are movably connected with a clamping rod, the rear side of the clamping rod is fixedly connected with a limiting block, the insides of the two pistons are fixedly installed with a spring sheet, the front ends of the two spring sheets are movably connected to the front ends of the clamping rod, the front ends of the two limiting blocks are movably connected to the front end of the input shaft, and the spring is fixedly sleeved on the outer side of the output shaft.

[0009] Preferably, the peripheral connection structure includes positioning blocks and mounting plates, and a plurality of the positioning blocks are fixedly installed on both sides of the outer wall of the anti-belt loss power take-off body, an arc-shaped plate is fixedly installed on the inner sides of two of the positioning blocks, and two cross bars are movably connected on the inner sides of the two arc-shaped plates, and two mounting plates are fixedly installed on both ends of the two cross bars, and a plurality of bolts are threadedly connected to the inner sides of the plurality of mounting plates, and a plurality of nuts are threadedly connected to the ends of the plurality of bolts.

[0010] Preferably, the peripheral connection structure includes positioning blocks and mounting plates, and a plurality of the positioning blocks are fixedly installed on both sides of the outer wall of the anti-belt loss power take-off body, an arc-shaped plate is fixedly installed on the inner sides of two of the positioning blocks, and two cross bars are movably connected on the inner sides of the two arc-shaped plates, and two mounting plates are fixedly installed on both ends of the two cross bars, and a plurality of bolts are threadedly connected to the inner sides of the plurality of mounting plates, and a plurality of nuts are threadedly connected to the ends of the plurality of bolts.

[0011] Preferably, the input port is fixedly mounted inside the upper end of the anti-belt loss power take-off body, the lower part of the input port is meshedly connected to the output shaft, and the rear side of the input shaft is fixedly connected to the end of the output shaft.

[0012] Preferably, a connecting end is fixedly mounted on the other end of the anti-belt loss power take-off body, and the interior of the connecting end is rotatably connected to the end of the output shaft.

[0013] The utility model proposes an anti-belt loss power take-off, which has the beneficial effect of: the clamping rod can preferentially play the role of squeezing and transmitting torque, but as the piston is pushed forward for too long, the clamping rod will be forced to slide in the opposite direction, and the limit block will fit against the outer wall of the input shaft. At this time, the clamping force of the front end of the clamping rod on the movement of the steel plate and the friction plate will be weakened, protecting the elastic block from deformation, thereby making the use of the anti-belt loss power take-off better.

[0014] The length of the left and right sliding of the cross bar can be adjusted according to the installation position until the ends of the cross bars on both sides can contact a beam or rod body that can be installed. At this time, the installation plate is fitted to the installation position, and the cross bar and the installation position are clamped and fixed by rotating the nut on the bolt. In this way, the anti-belt loss power take-off can be fixed. A structure that is easy to adjust the fixing form according to the installation position is adopted to improve the fixing effect of the anti-belt loss power take-off. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional schematic diagram of the utility model;

[0016] Figure 2 for Figure 1 A schematic diagram of the front view of

[0017] Figure 3 for Figure 1 A side cross-sectional schematic diagram of

[0018] Figure 4 for Figure 1 A front cross-sectional schematic diagram of

[0019] Figure 5 for Figure 4 Enlarged cross-sectional view of part A in the middle;

[0020] Figure 6 for Figure 3 Enlarged cross-sectional view of part B in the middle;

[0021] Figure 7 for Figure 2 Enlarged cross-sectional view of part C in the middle.

[0022] In the figure: 1. anti-belt loss power take-off body, 2. connecting end, 3. input port, 4. output shaft, 5. anti-belt loss structure, 51. input shaft, 52. pressure plate, 53. friction plate, 54. steel plate, 55. elastic block, 6. anti-belt loss limiting structure, 61. piston, 62. spring, 63. clamping rod, 64. spring sheet, 65. limiting block, 7. peripheral connection structure, 71. positioning block, 72. arc plate, 73. cross bar, 74. mounting plate, 75. nut, 76. bolt. DETAILED DESCRIPTION

[0023] The utility model is further described below in conjunction with the accompanying drawings: Example 1

[0024] See also Figure 1-6 In the present embodiment, a power take-off device for preventing belt loss includes a power take-off device for preventing belt loss, an input port 3 and an output shaft 4. A connecting end 2 is fixedly mounted on one end of the power take-off device for preventing belt loss, and the connecting end 2 is used for docking with an external shaft that needs to take power. The output shaft 4 is rotatably mounted inside the power take-off device for preventing belt loss, and an anti-belt loss structure 5 is provided on the inner side of the power take-off device for preventing belt loss, an anti-belt loss limiting structure 6 is provided on the inner side of the power take-off device for preventing belt loss, and an external connecting structure 7 is provided on the outer side of the power take-off device for preventing belt loss.

[0025] The anti-belt loss structure 5 includes an input shaft 51 and a pressure plate 52. The input shaft 51 is rotatably installed on the inner side of the anti-belt loss structure 5. The input shaft 51 is connected to the input port 3 on the outer side of the anti-belt loss power take-off body 1. The structure and working principle of the input port 3 are the same as those of the reference document with the publication number of the authorization announcement number "CN219712124U" and the name of an anti-belt loss power take-off, so no further description is made here. A plurality of elastic blocks 55 are fixedly connected to the inner side of the input shaft 51, a plurality of steel sheets 54 are movably connected to the inner side of the plurality of elastic blocks 55, a plurality of friction sheets 53 are movably connected to the inner side of the plurality of steel sheets 54, and one end of the plurality of friction sheets 53 is movably connected to the elastic block 55. The piston 61 has the same structural working principle as that in the reference document. When the piston 61 is started, it will push the steel sheet 54 to squeeze and fit tightly with the friction sheets 53 on both sides.

[0026] A plurality of steel sheets 54 and a plurality of friction sheets 53 are arranged alternately, and a pre-compressed elastic block 53 is arranged between two adjacent steel sheets 54. The driver is connected to the piston 61 in a transmission manner to drive the piston 61 to reciprocate between the first position and the second position. The driver can adopt a variety of structural forms, as long as it can drive the piston 61 to move. For example, a cylinder, an electric push rod, an electromagnetic switch, etc. can be adopted. The piston 61 can drive the steel sheets 54 and the friction sheets 53 to move during the movement. When the piston 6 is in the first position, the steel sheets 54 and the friction sheets 53 are arranged at intervals and cannot transmit torque. When the piston is in the second position, the steel sheets 54 and the friction sheets 53 are arranged close to each other and can transmit torque. The pressure plate 52 is fixedly sleeved on the outer side of the output shaft 4, and the outer wall of the pressure plate 52 is fixedly connected to the friction sheet 53.

[0027] The anti-belt loss limiting structure 6 includes a piston 61 and a spring 62. The piston 61 is fixedly installed on the inner side of the anti-belt loss power take-off body 1. The ends of the two pistons 61 are movably connected to the outer side of the steel sheet 54. The two pistons 61 are internally movably connected with a clamping rod 63. When the piston 61 moves forward to squeeze the steel sheet 54 and the movable friction sheet 53, the clamping rod 63 will first contact the steel sheet 54 and the friction sheet 53 under the push of the spring sheet 64. At this time, the clamping rod 63 can play a role in squeezing and transmitting torque first. However, as the piston 61 pushes forward for too long, the clamping rod 63 will be forced to slide in the opposite direction to limit the movement. The positioning block 65 will fit onto the outer wall of the input shaft 51, and the limiting block 65 will push the clamping rod 63 to the inside of the piston 61 to compress the spring sheet 64 to shrink. At this time, the clamping force of the front end of the clamping rod 63 on the movement of the steel sheet 54 and the friction plate 53 will be weakened, protecting the elastic block 55 from deformation. The rear side of the clamping rod 63 is fixedly connected to the limiting block 65, and the inside of the two pistons 61 is fixedly installed with spring sheets 64. The front ends of the two spring sheets 64 are movably connected to the front ends of the clamping rods 63, and the front ends of the two limiting blocks 65 are movably connected to the front ends of the input shaft 51. The spring 62 is fixedly sleeved on the outside of the output shaft 4.

[0028] When the piston 61 moves forward to squeeze the steel sheet 54 and the movable friction sheet 53, the clamping rod 63 will first contact the steel sheet 54 and the friction sheet 53 under the push of the spring sheet 64. At this time, the clamping rod 63 can preferentially play the role of squeezing and transmitting torque. However, as the piston 61 pushes forward for too long, the clamping rod 63 will be forced to slide in the opposite direction, and the limit block 65 will fit against the outer wall of the input shaft 51. The limit block 65 will push the clamping rod 63 in the opposite direction to the inside of the piston 61 to compress the spring sheet 64 to contract. At this time, the clamping force of the front end of the clamping rod 63 on the movement of the steel sheet 54 and the friction sheet 53 will be weakened, protecting the elastic block 55 from deformation, thereby improving the use effect of the anti-belt loss power take-off.

[0029] The peripheral connection structure 7 includes a positioning block 71 and a mounting plate 74. The multiple positioning blocks 71 are fixedly installed on both sides of the outer wall of the anti-belt loss power take-off body 1. The inner sides of the two positioning blocks 71 are fixedly installed with arc plates 72. The arc plates 72 are vertically installed on the inner sides of two opposite positioning blocks 71. The cross bars 73 inside the arc plates 72 can slide left and right to facilitate the adjustment of the installation position. The inner sides of the two arc plates 72 are movably connected with two cross bars 73. Two mounting plates 74 are fixedly installed at both ends of the two cross bars 73. When it is necessary to fix When the anti-belt loss power take-off is used, the length of the left and right sliding of the cross bar 73 can be adjusted according to the installation position until the ends of the cross bars 73 on both sides can contact a beam or rod body that can be installed. At this time, the installation piece 74 is attached to the installation position, and the cross bar 73 and the installation position are clamped and fixed by rotating the nut 75 on the bolt 76. In this way, the anti-belt loss power take-off can be fixed. The inner sides of the multiple installation pieces 74 are threadedly connected to multiple bolts 76, and the ends of the multiple bolts 76 are threadedly connected to multiple nuts 75;

[0030] The cross bar 73 inside the arc plate 72 can slide left and right to facilitate the adjustment of the installation position. When the anti-belt loss power take-off needs to be fixed, the sliding length of the cross bar 73 can be adjusted left and right according to the installation position until the ends of the cross bars 73 on both sides can contact a beam or rod body that can be installed. At this time, the mounting plate 74 is fitted to the installation position, and the cross bar 73 and the installation position are clamped and fixed by rotating the nut 75 on the bolt 76. In this way, the anti-belt loss power take-off can be fixed. A structure that is easy to adjust the fixing form according to the installation position is adopted to improve the fixing effect of the anti-belt loss power take-off.

[0031] Working principle:

[0032] When using the anti-belt loss power take-off, it is installed inside a car or special mechanical equipment to transfer power output:

[0033] Anti-belt loss structure of the power take-off:

[0034] The structure and working principle of the input port 3 are the same as those of the reference document with the publication number of the authorization announcement number "CN219712124U" and the name of a belt-loss-proof power take-off, so no further description is given here. The piston 61 has the same structural working principle as that in the reference document. When the piston 61 is started, it pushes the steel sheet 54 to squeeze and fit tightly with the friction sheets 53 on both sides. Multiple steel sheets 54 and multiple friction sheets 53 are arranged alternately, and a pre-compressed elastic block 53 is arranged between two adjacent steel sheets 54. The driver is connected to the piston 61 in a transmission manner to drive the piston 61 to reciprocate between the first position and the second position. The driver can adopt a variety of structural forms as long as it can drive the piston 61 to move, such as a cylinder, an electric push rod, an electromagnetic switch, etc.

[0035] The piston 61 can drive the steel plate 54 and the friction plate 53 to move during the movement. When the piston 6 is in the first position, the steel plate 54 and the friction plate 53 are arranged at intervals and cannot transmit torque. When the piston is in the second position, the steel plate 54 and the friction plate 53 are arranged close to each other and can transmit torque. The pressure plate 52 is fixedly sleeved on the outer side of the output shaft 4, and the outer wall of the pressure plate 52 is fixedly connected to the friction plate 53.

[0036] The piston push limit structure of the anti-belt loss power take-off:

[0037] When the piston 61 moves forward to squeeze the steel sheet 54 and the movable friction sheet 53, the clamping rod 63 will first contact the steel sheet 54 and the friction sheet 53 under the push of the spring sheet 64. At this time, the clamping rod 63 can play the role of squeezing and transmitting torque first. However, when the piston 61 is pushed forward for too long, the clamping rod 63 will be forced to slide in the reverse direction, and the limit block 65 will fit the outer wall of the input shaft 51. The limit block 65 will push the clamping rod 63 in the reverse direction to the inside of the piston 61 to compress the spring sheet 64 to shrink. At this time, the clamping force of the front end of the clamping rod 63 on the movement of the steel sheet 54 and the friction sheet 53 will be weakened, protecting the elastic block 55 from deformation.

[0038] Installation and fixing structure of anti-belt loss power take-off:

[0039] The cross bar 73 inside the arc plate 72 can slide left and right to facilitate the adjustment of the installation position. When the anti-belt loss power take-off needs to be fixed, the sliding length of the cross bar 73 can be adjusted according to the installation position until the ends of the cross bars 73 on both sides can contact a beam or rod body that can be installed. At this time, the mounting plate 74 is fitted to the installation position, and the cross bar 73 and the installation position are clamped and fixed by rotating the nut 75 on the bolt 76. In this way, the anti-belt loss power take-off can be fixed. Example 2

[0040] See also Figure 1-6 : In the present embodiment, a power take-off device for preventing belt loss also includes an input port 3 fixedly installed inside the upper end of the main body 1 of the power take-off device for preventing belt loss. The connection method between the input port 3 and the output shaft 4 has been fully and detailedly described in the comparative documents, so no further description is given here. The lower part of the input port 3 is meshed and connected with the output shaft 4. After the input port 3 receives the input of rotational force, the output shaft 4 below the meshed gear transmission will rotate. The rotating output shaft 4 can drive the input shaft 51 to rotate, and then the other section of the output shaft 4 is connected to the inside of the pressure plate 52. When the pressure plate 52 is driven to rotate by the friction of the input shaft 51, the other end of the other section of the output shaft 4 will also rotate to transmit the torque. The rear side of the input shaft 51 is fixedly connected to the end of the output shaft 4. The other end of the main body 1 of the power take-off device for preventing belt loss is fixedly installed with a connecting end 2, and the inside of the connecting end 2 is rotationally connected to the end of the output shaft 4.

[0041] Working principle:

[0042] The connection method between the input port 3 and the output shaft 4 has been fully and detailed in the comparative documents, so no further description is given here. The lower part of the input port 3 is meshed and connected with the output shaft 4. After the input port 3 receives the rotational force input, the output shaft 4 below will be rotated by the meshed gear transmission. The rotating output shaft 4 can drive the input shaft 51 to rotate, and then the other end of the output shaft 4 is connected to the inside of the pressure plate 52. When the pressure plate 52 is driven to rotate by the friction of the input shaft 51, the other end of the other end of the output shaft 4 will also rotate to transmit the torque.

[0043] Although the present invention has been shown and described with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein within the scope of the claims.

Claims

1. A belt-loss prevention power take-off, comprising a belt-loss prevention power take-off body (1), an input port (3) and an output shaft (4), characterized in that: A connecting end (2) is fixedly mounted on one end of the anti-belt loss power take-off body (1); the output shaft (4) is rotatably mounted inside the anti-belt loss power take-off body (1); an anti-belt loss structure (5) is provided on the inner side of the anti-belt loss power take-off body (1); an anti-belt loss limiting structure (6) is provided on the inner side of the anti-belt loss power take-off body (1); an external connecting structure (7) is provided on the outer side of the anti-belt loss power take-off body (1); the anti-belt loss structure (5) comprises an input shaft (51) and a pressure plate (52); the input shaft (51) is rotatably mounted on the anti-belt loss structure (5), the inner side of the input shaft (51) is fixedly connected with a plurality of elastic blocks (55), the inner sides of the plurality of elastic blocks (55) are movably connected with a plurality of steel sheets (54), the inner sides of the plurality of steel sheets (54) are movably connected with a plurality of friction plates (53), one end of the plurality of friction plates (53) is movably connected with the elastic blocks (55), the pressure plate (52) is fixedly sleeved on the outer side of the output shaft (4), the outer wall of the pressure plate (52) is fixedly connected with the friction plates (53), the anti-belt loss limiting structure (6) comprises a piston (61) and a spring (62), the piston (61) is fixedly mounted The invention is installed on the inner side of the anti-belt loss power take-off body (1), the ends of the two pistons (61) are movably connected to the outer side of the steel sheet (54), the inside of the two pistons (61) is movably connected to a clamping rod (63), the rear side of the clamping rod (63) is fixedly connected to a limiting block (65), the inside of the two pistons (61) is fixedly installed with a spring sheet (64), the front ends of the two spring sheets (64) are movably connected to the front ends of the clamping rod (63), the front ends of the two limiting blocks (65) are movably connected to the front ends of the input shaft (51), and the spring (62) is fixedly sleeved on the output shaft (4). On the outside, the peripheral connection structure (7) comprises a positioning block (71) and a mounting plate (74), a plurality of the positioning blocks (71) are fixedly mounted on both sides of the outer wall of the anti-belt loss power take-off body (1), an arc-shaped plate (72) is fixedly mounted on the inner sides of two of the positioning blocks (71), two cross bars (73) are movably connected on the inner sides of the two arc-shaped plates (72), two mounting plates (74) are fixedly mounted on both ends of the two cross bars (73), a plurality of bolts (76) are threadedly connected to the inner sides of the plurality of mounting plates (74), and a plurality of nuts (75) are threadedly connected to the ends of the plurality of bolts (76).

2. The anti-belt loss power take-off device according to claim 1, characterized in that: The input port (3) is fixedly mounted inside the upper end of the anti-belt loss power take-off body (1), the lower part of the input port (3) is meshedly connected to the output shaft (4), and the rear side of the input shaft (51) is fixedly connected to the end of the output shaft (4).

3. The anti-belt loss power take-off device according to claim 2, characterized in that: A connecting end (2) is fixedly mounted on the other end of the anti-belt loss power take-off body (1), and the interior of the connecting end (2) is rotatably connected to the end of the output shaft (4).

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