Matching structure of hydraulic power take-off system and hydraulic tool

Abstract

The invention relates to the technical field of all-terrain vehicle hydraulic control, in particular to a hydraulic power take-off system and hydraulic tool matching structure which comprises a hydraulic power take-off assembly and a pressure control mechanism. The hydraulic power take-off assembly comprises a steering shaft assembly, a mechanism support, a steering shaft sleeve, a gas spring support, a steering limiting piece, a guide cylinder and a limiting assembly, the steering shaft sleeve is fixedly connected with the mechanism support, the steering shaft assembly is arranged on the mechanism support, and the steering shaft assembly is provided with a steering limiting part, a high-pressure limiting step and a low-pressure limiting step; the steering limiting piece is fixedly connected with the guide cylinder, the limiting assembly is arranged in the guide cylinder and used for limiting the steering shaft assembly, and the pressure control mechanism is used for controlling an engine throttle, so that the problems that in the prior art, when different hydraulic tools need to be used, a hydraulic system is often difficult to provide stable hydraulic flow and pressure, and the working efficiency is high are solved. Therefore, the working efficiency and the performance of the hydraulic tool are influenced.

Description

Technical Field

[0001] The invention relates to the technical field of hydraulic control of all-terrain vehicles, and in particular to a matching structure of a hydraulic power take-off system and a hydraulic tool. Background Art

[0002] As a multifunctional and highly adaptable means of transportation, all-terrain vehicles (ATVs) are widely used in off-road exploration, agricultural operations, forest management and other fields. With the advancement of technology, more and more all-terrain vehicles are equipped with advanced hydraulic systems, which usually provide power for vehicle steering, requiring variable hydraulic flow and pressure and no stuck steering wheel.

[0003] With the development of technology, hydraulic systems are not only used to provide power for vehicle steering, but also can provide power input for hydraulic tools. However, hydraulic tools have higher requirements on the stability and accuracy of hydraulic flow and pressure, and different hydraulic tools require different flow and pressure. The existing hydraulic system is mainly used for vehicle steering. As a result, in actual applications, when different hydraulic tools need to be used, the hydraulic system often finds it difficult to provide stable hydraulic flow and pressure, which affects the working efficiency and performance of the hydraulic tools. Summary of the invention

[0004] The purpose of the present invention is to provide a hydraulic power take-off system and hydraulic tool matching structure, aiming to solve the technical problem in the prior art that when different hydraulic tools need to be used, the hydraulic system often finds it difficult to provide stable hydraulic flow and pressure, thereby affecting the working efficiency and performance of the hydraulic tools.

[0005] To achieve the above-mentioned purpose, the present invention adopts a hydraulic power take-off system and a hydraulic tool matching structure, including a hydraulic power take-off component and a pressure control mechanism;

[0006] The hydraulic power take-off assembly includes a steering shaft assembly, a mechanism support, a steering shaft sleeve, a gas spring support, a steering limit plate, a guide cylinder and a limit assembly. The steering shaft sleeve is fixedly connected to the mechanism support. The steering shaft assembly is arranged on the mechanism support. The steering shaft assembly has a steering limit portion, a high-pressure limit step and a low-pressure limit step. The steering limit plate is fixedly connected to the guide cylinder. The limit assembly is arranged in the guide cylinder for limiting the steering shaft assembly. The pressure control mechanism is used to control the engine throttle. The gas spring support is arranged on the steering shaft sleeve.

[0007] Among them, the limit assembly includes a limit rod, a first nut, a first spring and a pressing piece, one end of the limit rod passes through the guide cylinder, the limit tube has a threaded portion, a limit rod limit step and a positioning ring groove, the first nut is arranged on the threaded portion, the two ends of the first spring are respectively fixedly connected to the first nut and the guide cylinder, and the pressing piece is arranged on the limit rod.

[0008] Wherein, the pressing member includes a second nut and a pressing plate, the pressing plate is sleeved on the limiting rod, and the second nut is tightened on the threaded portion to position the pressing plate.

[0009] Wherein, the steering shaft assembly comprises a steering shaft body and a steering wheel, the steering shaft body is arranged on the steering shaft sleeve through a bearing, and the steering wheel is fixedly connected to the steering shaft body.

[0010] Among them, the pressure control mechanism includes a bracket, a rotating shaft, a locking assembly, a throttle sensor, a force member, an adjustment block assembly, a first screw, a second screw and a clamping ring. The rotating shaft is rotatably connected to the bracket, the clamping ring is connected to the rotating shaft, the adjustment block assembly is installed on the rotating shaft through the first screw, the throttle sensor is installed on the bracket through the second screw, the adjustment block assembly is connected to the adjustment arm of the throttle sensor, the locking assembly is used to lock the rotating shaft, and the force member is connected to the rotating shaft.

[0011] Among them, the locking assembly includes a locking screw, a second spring and a steel ball, the rotating shaft has a plurality of locking grooves, limiting grooves and limiting ring grooves, the bracket has a through hole, the locking screw is arranged in the through hole, the two ends of the second spring are respectively connected to the locking screw and the steel ball, and the steel ball is placed in the corresponding locking groove.

[0012] Wherein, the force applying member includes a force applying block and a third screw, and the third screw passes through the force applying block and is tightened on the rotating shaft.

[0013] The hydraulic power take-off system and hydraulic tool matching structure of the present invention, when in use, the limit rod is installed from bottom to top into the guide rod and passes through the top, and then the first spring is installed to the threaded part of the limit rod, and positioned with the first nut to form a certain pre-compression state; then the pressure plate is sleeved to the threaded part of the limit rod and fastened with the second nut. After completing the above assembly, the steering shaft assembly is welded to the steering shaft sleeve through the bearing, sealing ring, shaft clamp ring, etc., and then the installation is completed;

[0014] When using a high-pressure tool, the steering wheel is rotated clockwise to the bottom, and the steering shaft assembly rotates accordingly, and the steering limit portion and the steering limit plate thereon are combined. At this time, the pressure plate is pressed downward, the first spring is compressed, and the lower part of the limit rod is extended until the positioning ring groove at the bottom is located between the steering limit portions. At this time, the steering wheel is released, and the steering shaft assembly rotates under the action of the hydraulic pressure. When the high-pressure limit step contacts the positioning ring groove of the limit rod, the pressure plate is released. Under the action of the first spring, the limit rod rebounds. Since the positioning ring groove of the limit rod has a step limit, the steering shaft assembly is limited to this angle and cannot rotate, forming a stable hydraulic pressure;

[0015] When the steering wheel needs to be unlocked to achieve free steering during land driving, the steering wheel is rotated rightward to disengage the positioning ring groove step of the limit rod from the high-pressure limit step, and the limit rod moves upward due to the action of the first spring, and the position is determined by the guide cylinder, thereby releasing the steering wheel lock;

[0016] When the low-pressure tool is used, first press the pressure plate until it can no longer be pressed, then slowly operate the steering wheel clockwise until the pressure plate is felt to sink, and the lower part of the limit rod extends until the positioning ring groove at the bottom is located at the low-pressure limit step. At this time, release the steering wheel, and the steering shaft assembly rotates under the action of the hydraulic pressure. When the low-pressure limit step contacts the positioning ring groove of the limit rod, release the pressure plate. Under the action of the first spring, the limit rod rebounds. Since the positioning ring groove of the limit rod has a step limit, the steering shaft assembly is limited to this angle and cannot rotate, forming a stable hydraulic pressure.

[0017] The engine throttle is controlled by the pressure control mechanism.

[0018] In this way, the technical problem in the prior art that when different hydraulic tools need to be used, the hydraulic system often has difficulty in providing stable hydraulic flow and pressure, thereby affecting the working efficiency and performance of the hydraulic tools is solved. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 It is a structural schematic diagram of the hydraulic power take-off assembly of the present invention.

[0021] Figure 2It is a partial structural schematic diagram of the hydraulic power take-off assembly of the present invention.

[0022] Figure 3 It is a structural schematic diagram of the steering shaft assembly of the present invention.

[0023] Figure 4 It is a structural schematic diagram of a steering wheel of the present invention.

[0024] Figure 5 It is a structural schematic diagram of the guide cylinder positioning step of the present invention.

[0025] Figure 6 It is a structural schematic diagram of the limiting rod of the present invention.

[0026] Figure 7 It is a schematic diagram of the matching structure of the positioning ring groove and the high-pressure limiting step of the present invention.

[0027] Figure 8 This is a schematic diagram of the matching structure of the positioning ring groove and the low-pressure limit step of the present invention.

[0028] Fig. 9 It is a structural schematic diagram of the pressure control mechanism of the present invention.

[0029] Fig.10 It is a schematic structural diagram of the rotating shaft of the present invention.

[0030] 1-mechanism support, 2-steering shaft sleeve, 3-gas spring support, 4-steering limit plate, 5-guide cylinder, 6-limit rod, 7-first nut, 8-first spring, 9-threaded part, 10-limit rod limit step, 11-positioning ring groove, 12-steering limit part, 13-high pressure limit step, 14-low pressure limit step, 15-second nut, 16-pressure plate, 17-steering shaft body, 18-steering wheel, 19-bracket , 20-rotating shaft, 21-throttle sensor, 22-adjusting block assembly, 23-first screw, 24-second screw, 25-clamping ring, 26-adjusting shaft, 27-swing arm, 28-locking screw, 29-second spring, 30-steel ball, 31-locking groove, 32-limiting groove, 33-limiting ring groove, 34-through hole, 35-force block, 36-third screw, 37-anti-slip pattern, 38-guide cylinder positioning step. DETAILED DESCRIPTION

[0031] Embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, but should not be construed as limiting the present invention.

[0032] See also Figures 1 to 10 ,in Figure 1 is a schematic structural diagram of the hydraulic power take-off assembly of the present invention, Figure 2 is a partial structural schematic diagram of the hydraulic power take-off assembly of the present invention, Figure 3 is a schematic structural diagram of a steering shaft assembly of the present invention, Figure 4 is a schematic structural diagram of a steering wheel of the present invention, Figure 5 It is a structural schematic diagram of the guide cylinder positioning step of the present invention, Figure 6 2 is a schematic structural diagram of the limit rod of the present invention. Figure 7 It is a schematic diagram of the matching structure of the positioning ring groove and the high-pressure limiting step of the present invention. Figure 8 This is a schematic diagram of the matching structure of the positioning ring groove and the low-pressure limit step of the present invention. Fig. 9 is a schematic structural diagram of the pressure control mechanism of the present invention, Fig.10 It is a schematic structural diagram of the rotating shaft of the present invention.

[0033] The present invention provides a hydraulic power take-off system and a hydraulic tool matching structure, including a hydraulic power take-off component and a pressure control mechanism;

[0034] The hydraulic power take-off assembly includes a steering shaft assembly, a mechanism support 1, a steering shaft sleeve 2, a gas spring support 3, a steering limit plate 4, a guide cylinder 5 and a limit assembly. The steering shaft sleeve 2 is fixedly connected to the mechanism support 1, and the steering shaft assembly is arranged on the mechanism support 1. The steering shaft assembly has a steering limit portion 12, a high-pressure limit step 13 and a low-pressure limit step 14. The steering limit plate 4 is fixedly connected to the guide cylinder 5. The limit assembly is arranged in the guide cylinder 5 and is used to limit the steering shaft assembly. The pressure control mechanism is used to control the engine throttle. The gas spring support 3 is arranged on the steering shaft sleeve 2.

[0035] The limiting assembly includes a limiting rod 6, a first nut 7, a first spring 8 and a pressing piece. One end of the limiting rod 6 passes through the guide cylinder 5. The limiting tube has a threaded portion 9, a limiting rod limiting step 10 and a positioning ring groove 11. The first nut 7 is arranged on the threaded portion 9. The two ends of the first spring 8 are fixedly connected to the first nut 7 and the guide cylinder 5 respectively. The pressing piece is arranged on the limiting rod 6.

[0036] With respect to this specific embodiment, when in use, the limiting rod 6 is installed from bottom to top into the guide rod and passes through the top, and then the first spring 8 is installed on the threaded portion 9 of the limiting rod 6, and positioned with the first nut 7 to form a certain pre-compression state; then the pressing piece is sleeved on the threaded portion 9 of the limiting rod 6, and fastened with the second nut 15. After the above assembly is completed, the steering shaft assembly is welded to the steering shaft sleeve through the bearing, sealing ring, shaft clamp 25, etc., and then the installation is completed;

[0037] When using a high-pressure tool, rotate the steering wheel clockwise to the bottom, the steering shaft assembly rotates accordingly, and the steering limit portion 12 thereon is combined with the steering limit plate 4. At this time, press the pressing piece downward, the first spring 8 is compressed, and the lower part of the limit rod 6 extends until the positioning ring groove 11 at the bottom is located between the steering limit portion 12. At this time, release the steering wheel, and the steering shaft assembly rotates under the action of the hydraulic pressure. When the high-pressure limit step 13 contacts the positioning ring groove 11 of the limit rod 6, release the pressing piece. Under the action of the first spring 8, the limit rod 6 rebounds. Since the positioning ring groove 11 of the limit rod 6 has a step limit, the steering shaft assembly is limited to this angle and cannot rotate, forming a stable hydraulic pressure;

[0038] When the steering wheel needs to be unlocked to achieve free steering when driving on land, the steering wheel is rotated rightward to disengage the step of the positioning ring groove 11 of the limiting rod 6 from the high-pressure limiting step 13, and the limiting rod 6 moves upward due to the action of the first spring 8, and the position is determined by the positioning step 38 of the guide cylinder, thereby releasing the steering wheel lock;

[0039] When the low-pressure tool is used, first press the pressing piece until it cannot be pressed anymore, then slowly operate the steering wheel clockwise until the pressing piece is felt to sink, and the lower part of the limiting rod 6 extends out until the positioning ring groove 11 at the bottom is located at the low-pressure limiting step 14. At this time, release the steering wheel, and the steering shaft assembly rotates under the action of the hydraulic pressure. When the low-pressure limiting step 14 contacts the positioning ring groove 11 of the limiting rod 6, release the pressing piece. Under the action of the first spring 8, the limiting rod 6 rebounds. Since the positioning ring groove 11 of the limiting rod 6 has a step limit, the steering shaft assembly is limited to this angle and cannot rotate, forming a stable hydraulic pressure.

[0040] The engine throttle is controlled by the pressure control mechanism.

[0041] In this way, the technical problem in the prior art that when different hydraulic tools need to be used, the hydraulic system often has difficulty in providing stable hydraulic flow and pressure, thereby affecting the working efficiency and performance of the hydraulic tools is solved.

[0042] The pressing member includes a second nut 15 and a pressing plate 16 . The pressing plate 16 is sleeved on the limiting rod 6 . The second nut 15 is tightened on the threaded portion 9 to position the pressing plate 16 .

[0043] According to this specific embodiment, the pressing plate 16 is positioned by the second nut 15 , and by pressing the pressing plate 16 , the pressing plate 16 drives the limiting rod 6 to move.

[0044] Secondly, the steering shaft assembly includes a steering shaft body 17 and a steering wheel 18 . The steering shaft body 17 is arranged on the steering shaft sleeve through a bearing, and the steering wheel 18 is fixedly connected to the steering shaft body 17 .

[0045] According to this specific embodiment, the steering shaft body 17 is disposed between the steering wheel and the steering wheel 18 .

[0046] At the same time, the pressure control mechanism includes a bracket 19, a rotating shaft 20, a locking assembly, a throttle sensor 21, a force member, an adjustment block assembly 22, a first screw 23, a second screw 24 and a clamping ring 25. The rotating shaft 20 is rotatably connected to the bracket 19, the clamping ring 25 is connected to the rotating shaft 20, the adjustment block assembly 22 is installed on the rotating shaft 20 through the first screw 23, the throttle sensor 21 is installed on the bracket 19 through the second screw 24, the adjustment block assembly 22 is connected to the adjustment arm of the throttle sensor 21, the locking assembly is used to lock the rotating shaft 20, and the force member is connected to the rotating shaft 20.

[0047] According to this specific embodiment, when operating the pressure control mechanism, hold the force member and rotate it clockwise (set the initial state to the engine idle state), the rotating shaft 20 drives the adjusting block assembly 22 to rotate together, and the adjusting shaft 26 of the adjusting block assembly 22 moves the swing arm of the throttle sensor 21 to rotate clockwise, that is, increase the throttle. Observe the engine speed display on the instrument panel, and when the required speed is obtained, stop the rotation operation, and the rotating shaft 20 stabilizes under the action of the locking assembly to form a stable engine speed.

[0048] In addition, the locking assembly includes a locking screw 28, a second spring 29 and a steel ball 30, the rotating shaft 20 has a plurality of locking grooves 31, a limiting groove 32 and a limiting ring groove 33, the bracket 19 has a through hole 34, the locking screw 28 is arranged in the through hole 34, the two ends of the second spring 29 are respectively connected to the locking screw 28 and the steel ball 30, and the steel ball 30 is placed in the corresponding locking groove 31.

[0049] According to this specific embodiment, when the rotating shaft 20 stops rotating after the rotating shaft 20 is required to complete its rotation, the second spring 29 drives the steel ball 30 to be placed in the corresponding locking groove 31, so that the rotating shaft 20 can be locked so that the rotating shaft 20 is stabilized to form a stable engine speed.

[0050] Again, the force applying member includes a force applying block 35 and a third screw 36 . The third screw 36 passes through the force applying block 35 and is tightened on the rotating shaft 20 .

[0051] According to this specific embodiment, by providing the force applying block 35 and the third screw 36 , the force applying block 35 is fixed to the rotating shaft 20 through the third screw 36 , and the force applying block 35 is used to drive the rotating shaft 20 to rotate.

[0052] Finally, the force applying block 35 has anti-skid patterns 37 , and the anti-skid patterns 37 can play an anti-skid effect when the force applying block 35 is used.

[0053] Using a hydraulic power take-off system and a hydraulic tool matching structure of this embodiment, when in use, the limit rod 6 is installed from bottom to top into the guide rod and passes through the top, and then the first spring 8 is installed to the threaded portion 9 of the limit rod 6, and positioned with the first nut 7 to form a certain pre-compression state; then the pressure plate 16 is sleeved onto the threaded portion 9 of the limit rod 6 and fastened with the second nut 15. After completing the above assembly, the steering shaft assembly is welded to the steering shaft sleeve through the bearing, sealing ring, shaft clamp 25, etc., and then the installation is completed;

[0054] When using a high-pressure tool, rotate the steering wheel clockwise to the bottom, the steering shaft assembly rotates accordingly, and the steering limit portion 12 thereon is combined with the steering limit plate 4. At this time, press the pressure plate 16 downward, the first spring 8 is compressed, and the lower part of the limit rod 6 extends until the positioning ring groove 11 at the bottom is located between the steering limit portion 12. At this time, release the steering wheel, and the steering shaft assembly rotates under the action of the hydraulic pressure. When the high-pressure limit step 13 contacts the positioning ring groove 11 of the limit rod 6, release the pressure plate 16. Under the action of the first spring 8, the limit rod 6 rebounds. Since the positioning ring groove 11 of the limit rod 6 has a step limit, the steering shaft assembly is limited to this angle and cannot rotate, forming a stable hydraulic pressure;

[0055] When the steering wheel needs to be unlocked to achieve free steering when driving on land, the steering wheel is rotated rightward to disengage the step of the positioning ring groove 11 of the limiting rod 6 from the high-pressure limiting step 13, and the limiting rod 6 moves upward due to the action of the first spring 8, and the position is determined by the guide cylinder 5, thereby releasing the steering wheel lock;

[0056] When the low-pressure tool is used, first press the pressure plate 16 until it can no longer be pressed, then slowly operate the steering wheel clockwise until the pressure plate 16 sinks and the lower part of the limit rod 6 extends until the positioning ring groove 11 at the bottom is located at the low-pressure limit step 14. At this time, release the steering wheel, and the steering shaft assembly rotates under the action of the hydraulic pressure. When the low-pressure limit step 14 contacts the positioning ring groove 11 of the limit rod 6, release the pressure plate 16. Under the action of the first spring 8, the limit rod 6 rebounds. Since the positioning ring groove 11 of the limit rod 6 has a step limit, the steering shaft assembly is limited to this angle and cannot rotate, forming a stable hydraulic pressure.

[0057] The engine throttle is controlled by the pressure control mechanism.

[0058] In this way, the technical problem in the prior art that when different hydraulic tools need to be used, the hydraulic system often has difficulty in providing stable hydraulic flow and pressure, thereby affecting the working efficiency and performance of the hydraulic tools is solved.

[0059] What is disclosed above is only a preferred embodiment of the present invention, and it certainly cannot be used to limit the scope of rights of the present invention. Ordinary technicians in this field can understand that all or part of the processes of the above embodiment and equivalent changes made according to the claims of the present invention still fall within the scope of the invention.

Claims

1. A matching structure of a hydraulic power take-off system and a hydraulic tool, characterized in that: Including hydraulic power take-off components and pressure control mechanisms; The hydraulic power take-off assembly includes a steering shaft assembly, a mechanism support, a steering shaft sleeve, a gas spring support, a steering limit plate, a guide cylinder and a limit assembly. The steering shaft sleeve is fixedly connected to the mechanism support. The steering shaft assembly is arranged on the mechanism support. The steering shaft assembly has a steering limit portion, a high-pressure limit step and a low-pressure limit step. The steering limit plate is fixedly connected to the guide cylinder. The limit assembly is arranged in the guide cylinder for limiting the steering shaft assembly. The pressure control mechanism is used to control the engine throttle. The gas spring support is arranged on the steering shaft sleeve.

2. The matching structure of the hydraulic power take-off system and the hydraulic tool according to claim 1, characterized in that: The limit assembly includes a limit rod, a first nut, a first spring and a pressing piece. One end of the limit rod passes through the guide cylinder. The limit tube has a threaded portion, a limit rod limit step and a positioning ring groove. The first nut is arranged on the threaded portion. The two ends of the first spring are respectively fixedly connected to the first nut and the guide cylinder. The pressing piece is arranged on the limit rod.

3. The matching structure of the hydraulic power take-off system and the hydraulic tool as claimed in claim 2, characterized in that: The pressing member includes a second nut and a pressing plate. The pressing plate is sleeved on the limiting rod. The second nut is tightened on the threaded portion to position the pressing plate.

4. The matching structure of the hydraulic power take-off system and the hydraulic tool as claimed in claim 3, characterized in that: The steering shaft assembly comprises a steering shaft body and a steering wheel. The steering shaft body is arranged on the steering shaft sleeve through a bearing, and the steering wheel is fixedly connected to the steering shaft body.

5. The matching structure of the hydraulic power take-off system and the hydraulic tool as claimed in claim 4, characterized in that: The pressure control mechanism includes a bracket, a rotating shaft, a locking assembly, a throttle sensor, a force member, an adjustment block assembly, a first screw, a second screw and a clamping ring. The rotating shaft is rotatably connected to the bracket, the clamping ring is connected to the rotating shaft, the adjustment block assembly is installed on the rotating shaft through the first screw, the throttle sensor is installed on the bracket through the second screw, the adjustment block assembly is connected to the adjustment arm of the throttle sensor, the locking assembly is used to lock the rotating shaft, and the force member is connected to the rotating shaft.

6. The matching structure of the hydraulic power take-off system and the hydraulic tool as claimed in claim 5, characterized in that: The locking assembly includes a locking screw, a second spring and a steel ball. The rotating shaft has a plurality of locking grooves, limiting grooves and limiting ring grooves. The bracket has a through hole. The locking screw is arranged in the through hole. The two ends of the second spring are respectively connected to the locking screw and the steel ball, and the steel ball is placed in the corresponding locking groove.

7. The matching structure of the hydraulic power take-off system and the hydraulic tool according to claim 6, characterized in that: The force applying member includes a force applying block and a third screw. The third screw passes through the force applying block and is tightened on the rotating shaft.

Images