Hydraulic device

Abstract

The utility model discloses a hydraulic device which comprises a chassis, a lifting device and a hydraulic device body, the lifting device is rotatably installed on the chassis, the hydraulic device body is rotatably installed on the chassis, and the output end of the hydraulic device body is rotatably connected with the lifting device. The telescopic supporting unit comprises a first supporting rod and a second supporting rod, one end of the first supporting rod is rotationally installed on the chassis, the other end of the first supporting rod is slidably connected with the second supporting rod in a sleeving mode, and the end of the second supporting rod is rotationally connected to the lifting device; the hydraulic device body pushes the lifting device to rotate on the chassis, so that the angle between the lifting device and the chassis reaches the optimal lifting position, and meanwhile, the second supporting rod slides in the first supporting rod, so that the first supporting rod and the second supporting rod provide auxiliary supporting for the lifting device; and the collection operation of the potato harvester on potatoes is not influenced.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic equipment, in particular to a hydraulic device. Background Art

[0002] As is known, hydraulic transmission uses liquid as the working medium and utilizes the pressure energy of the liquid to transmit power. It consists of five parts: hydraulic device energy device, actuator, control and adjustment device, auxiliary device and liquid medium. Hydraulics are widely used in industry and civil industries due to its high power transmission, easy transmission and configuration.

[0003] A potato harvester is a device for digging and collecting potatoes. A hydraulic device is provided between the chassis and the lifting device of the potato harvester. The lifting device is rotated by the hydraulic device to adjust the angle between the lifting device and the chassis so that the lifting device can better lift and transport potatoes.

[0004] For example, the patent with announcement number CN217950892U, publication date December 2, 2022, and name "A Hydraulic Device", this utility model relates to the technical field of hydraulic equipment, and discloses a hydraulic device, including a hydraulic device body, the outer edge sleeve of the hydraulic device body is provided with a cooling pipe, the hydraulic device body is fixedly connected with a mounting frame, a motor is installed on the mounting frame, the output shaft of the motor is equipped with a heat sink, a trigger assembly is provided in the oil storage tank of the hydraulic device body, and a water pump assembly is provided on the mounting frame. When the hydraulic device proposed by the utility model is in operation, there is no need for manual control of the motor, and the operation of the hydraulic device does not require human monitoring at all times, so that the heat sink and the water pump assembly can cool the oil in time to ensure the normal operation of the hydraulic device. Secondly, there is no need to set up an additional power source to realize the circulation of water, which reduces the production cost and operation cost of the device, and is conducive to the popularization and promotion of the device.

[0005] In the prior art, during the use of a potato harvester, when the hydraulic device pushes the lifting device to rotate and adjust the angle between the lifting device and the chassis, the hydraulic device always provides a supporting force for the lifting device. Since there is a lot of material (i.e., potatoes) on the lifting device, the pressure on the hydraulic device is relatively large, causing the hydraulic device to release pressure, thereby affecting the potato harvester's potato collection operation. Utility Model Content

[0006] The purpose of the utility model is to provide a hydraulic device to solve the above problems in the prior art.

[0007] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a hydraulic device, including a chassis, a lifting device and a hydraulic device body, the lifting device is rotatably installed on the chassis, the hydraulic device body is rotatably installed on the chassis, the output end of the hydraulic device body is rotatably connected to the lifting device, and also includes a telescopic support unit, the telescopic support unit includes a first support rod and a second support rod, one end of the first support rod is rotatably installed on the chassis, the other end of the first support rod is slidably sleeved with the second support rod, and the end of the second support rod is rotatably connected to the lifting device.

[0008] As mentioned above, a slide groove is provided on the first support rod, and the second support rod is slidably installed in the slide groove.

[0009] As mentioned above, the inner walls on both sides of the slide groove are symmetrical inclined surfaces, and the two symmetrical inclined surfaces of the slide groove are inclined downward from the end close to the lifting device to the end away from the lifting device.

[0010] As mentioned above, a plurality of semicircular grooves are evenly arranged on the two inclined surfaces of the slide groove along the linear direction thereof.

[0011] As mentioned above, the second support rod is symmetrically provided with two grooves on both sides of one end inside the slide slot, a clamping rod is slidably installed in each of the two grooves, and the two clamping rods and the corresponding grooves are connected via a first elastic member.

[0012] As mentioned above, the two abutting rods are in abutment with the semicircular grooves on their corresponding inclined surfaces.

[0013] As mentioned above, the two clamping rods are telescopic structures, and a flat groove is opened at one end of the two clamping rods close to the second support rod. The two clamping rods are slidably installed in the flat groove at one end away from the second support rod, and the end of the clamping rod away from the second support rod and the flat groove are connected by a second elastic member.

[0014] As mentioned above, a plurality of inclined plane blocks are evenly arranged on one side wall of the first support rod, and each of the inclined plane blocks is inclined downward from an end close to the lifting device to an end away from the lifting device.

[0015] As mentioned above, a supporting rod is rotatably mounted on one end of the second supporting rod located inside the sliding groove, and one end of the supporting rod and the inclined surface block are in abutment with each other.

[0016] As mentioned above, a driving member is installed on one side wall of the second support rod, and the output end of the driving member is connected to the other end of the supporting rod.

[0017] The beneficial effect of the utility model is that the lifting device is pushed to rotate on the chassis by the hydraulic device body, so that the angle between the lifting device and the chassis reaches the optimal lifting position. At the same time, the second support rod slides inside the first support rod, so that the first support rod and the second support rod provide auxiliary support for the lifting device, thereby preventing the lifting device from rotating back to its original position due to pressure relief from the hydraulic device body, causing a mechanical accident, and will not affect the potato harvester's potato collection operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0019] Figure 1 A schematic diagram of a partial cross-sectional structure of an embodiment provided by the utility model;

[0020] Figure 2 A schematic diagram of a partial cross-sectional structure of a telescopic support unit provided by an embodiment of the utility model;

[0021] Figure 3 For this utility model Figure 2 A schematic diagram of a partially enlarged cross-sectional structure at M;

[0022] Figure 4 A partial three-dimensional structural schematic diagram of another embodiment provided by the utility model;

[0023] Figure 5 Provided for the utility model Figure 4 A schematic cross-sectional structure diagram of a first perspective;

[0024] Figure 6 Provided for the utility model Figure 4 A schematic diagram of the cross-sectional structure from a second viewing angle.

[0025] Description of reference numerals:

[0026] 1. chassis; 2. lifting device; 3. hydraulic device body; 4. first support rod; 5. second support rod; 6. slide groove; 7. inclined surface; 8. semicircular groove; 9. groove; 10. clamping rod; 11. first elastic member; 12. flat groove; 13. second elastic member; 14. inclined surface block; 15. supporting rod; 16. driving member. DETAILED DESCRIPTION

[0027] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0028] like Figures 1 to 6 As shown, in an embodiment provided by the utility model, a hydraulic device includes a chassis 1, a lifting device 2 and a hydraulic device body 3, the lifting device 2 is rotatably installed on the chassis 1, the hydraulic device body 3 is rotatably installed on the chassis 1, the output end of the hydraulic device body 3 is rotatably connected to the lifting device 2, and also includes a telescopic support unit, the telescopic support unit includes a first support rod 4 and a second support rod 5, one end of the first support rod 4 is rotatably installed on the chassis 1, the other end of the first support rod 4 is slidably sleeved with the second support rod 5, and the end of the second support rod 5 is rotatably connected to the lifting device 2.

[0029] Specifically, the chassis 1 is a machine that drives the potato harvester to move freely, the lifting device 2 is a device that lifts and transports potatoes from the bottom to the top, and the hydraulic device body 3 is a device that provides driving force for the lifting device 2 to rotate on the chassis 1. When the potato harvester digs and collects potatoes, the lifting device 2 needs to be used to transport the potatoes from the ground to the collection box. At this time, it is necessary to adjust the angle between the lifting device 2 and the chassis 1 so that the potatoes can be better lifted. When it is necessary to adjust the angle between the lifting device 2 and the chassis 1, the hydraulic device body 3 is started to drive the lifting device 2 to rotate. In the process of the hydraulic device body 3 driving the lifting device 2 to rotate, the lifting device 2 drives the second support rod 5 to slide in the first support rod 4, so that the total length of the second support rod 5 and the first support rod 4 is adapted to the extension and contraction of the hydraulic device body 3, so that the second support rod 5 and the first support rod 4 as a whole provide certain auxiliary support to the lifting device 2 and the chassis 1, so as to prevent the hydraulic device body 3 from depressurizing when the load is large. The lifting device 2 rotates back to its original position, thereby causing a mechanical accident, and providing a stable working environment for the potato harvester to collect potatoes; in the prior art, during the use of the potato harvester, when the hydraulic device pushes the lifting device 2 to rotate and adjust the angle between the lifting device 2 and the chassis 1, the hydraulic device always provides a supporting force for the lifting device 2. Since there are more materials (that is, potatoes) on the lifting device 2, the pressure on the hydraulic device is relatively large, causing the hydraulic device to release pressure, thereby affecting the potato harvester to collect potatoes; in this embodiment, the lifting device 2 is pushed to rotate on the chassis 1 by the hydraulic device body 3, so that the angle between the lifting device 2 and the chassis 1 reaches the optimal lifting position. At the same time, the second support rod 5 slides in the first support rod 4, so that the first support rod 4 and the second support rod 5 provide auxiliary support for the lifting device 2, to prevent the lifting device 2 from rotating back to its original position when the hydraulic device body 3 releases pressure, causing a mechanical accident, and will not affect the potato harvester to collect potatoes.

[0030] Furthermore, a slide groove 6 is provided on the first support rod 4, and the second support rod 5 is slidably installed in the slide groove 6; the inner walls on both sides of the slide groove 6 are symmetrical inclined surfaces 7, and the two symmetrical inclined surfaces 7 of the slide groove 6 are inclined downward from the end close to the lifting device 2 to the end away from the lifting device 2; a plurality of semicircular grooves 8 are evenly provided on the two inclined surfaces 7 of the slide groove 6 along the linear direction thereof; two grooves 9 are symmetrically provided on both sides of one end of the second support rod 5 located inside the slide groove 6, and a stop is slidably installed in each of the two grooves 9 The tightening rod 10, the two tightening rods 10 and the corresponding grooves 9 are connected by a first elastic member 11; the two tightening rods 10 are in contact with each other between the semicircular grooves 8 on the corresponding inclined surfaces 7; the two tightening rods 10 are telescopic structures, and a flat groove 12 is provided at one end of the two tightening rods 10 close to the second support rod 5, and the two ends of the two tightening rods 10 away from the second support rod 5 are slidably installed in the flat groove 12, and the end of the tightening rod 10 away from the second support rod 5 and the flat groove 12 are connected by a second elastic member 13.

[0031] Specifically, in the process that the hydraulic device body 3 drives the lifting device 2 to rotate, the lifting device 2 drives the second support rod 5 to slide in the first support rod 4, and the second support rod 5 drives the clamping rod 10 to slide along the track of the slide groove 6. (1) When the first support rod 4 slides toward its outer end in the slide groove 6 on the second support rod 5, the distance between the clamping rod 10 and the inclined surface 7 gradually decreases. Since the first elastic member 11 (the first elastic member 11 is a component that can be telescopically reset, preferably a spring) has a certain telescopic effect, the first elastic member 11 gradually contracts, so that the elastic force of the first elastic member 11 gradually increases, so that the clamping force between the clamping rod 10 and the semicircular groove 8 also increases. At the same time, since the second elastic member 13 (the second elastic member 13 is a component that can be telescopically reset, preferably a spring) has a certain telescopic effect, the second elastic member 13 also gradually contracts, so that the length of the clamping rod 10 gradually decreases, adapting to the distance between the second support rod 5 and the inclined surface 7 (that is, the distance between the inclined surface 7 and the second support rod 5 gradually decreases). The contraction of the elastic member 13 and the first elastic member 11 gradually reduces the distance between the clamping rod 10 and the inclined surface 7, so that the length of the clamping rod 10 can adapt to the change in the distance between the inclined surface 7 and the second support rod 5), so that the elastic force of the second elastic member 13 gradually increases, further increasing the clamping force between the clamping rod 10 and the semicircular groove 8, so that the supporting force of the clamping rod 10 on the second support rod 5 also increases accordingly; (2) when the first support rod 4 slides in the slide groove 6 on the second support rod 5 toward its inner end, the clamping rod 10 and the inclined surface 7 are moved away from each other. The spacing between the surfaces 7 gradually increases. Since the first elastic member 11 has a certain telescopic effect, under the rebound effect of the first elastic member 11, the first elastic member 11 gradually rebounds, so that the elastic force of the first elastic member 11 gradually decreases, so that the clamping force between the clamping rod 10 and the semicircular groove 8 also decreases. At the same time, since the second elastic member 13 has a certain telescopic effect, the second elastic member 13 also gradually rebounds, so that the elastic force of the second elastic member 13 gradually decreases, so that the supporting force of the clamping rod 10 on the second supporting rod 5 also decreases accordingly;That is, when the overall length of the second support rod 5 and the first support rod 4 increases, the abutment force between the abutment rod 10 and the inclined surface 7 increases, so that the abutment rod 10 increases the supporting force between the second support rod 5 and the first support rod 4, so as to adapt to the greater pressure applied by the lifting device 2 to the hydraulic device body 3 when the lifting device 2 is at a higher height; when the overall length of the second support rod 5 and the first support rod 4 decreases, the abutment force between the abutment rod 10 and the inclined surface 7 decreases, so that the abutment rod 10 reduces the supporting force between the second support rod 5 and the first support rod 4, so as to adapt to the smaller pressure applied by the lifting device 2 to the hydraulic device body 3 when the lifting device 2 is at a lower height, so that the second support rod 5 and the first support rod 4 can provide a relatively stable auxiliary supporting force for the lifting device 2, and prevent the lifting device 2 from rotating back to its original position when the hydraulic device body 3 is depressurized. ;

[0032] In another embodiment provided by the utility model, a plurality of inclined blocks 14 are evenly arranged on the side wall of one side of the first support rod 4, and each of the inclined blocks 14 is inclined downward from the end close to the lifting device 2 to the end away from the lifting device 2; a supporting rod 15 is rotatably installed at one end of the second support rod 5 located inside the slide groove 6, and one end of the supporting rod 15 and the inclined block 14 are abutted and cooperated with each other; a driving member 16 is installed on the side wall of one side of the second support rod 5, and the output end of the driving member 16 is connected to the other end of the supporting rod 15.

[0033] Specifically, in the process of the hydraulic device body 3 driving the lifting device 2 to rotate, the lifting device 2 drives the second support rod 5 to slide inside the first support rod 4, and the second support rod 5 drives the supporting rod 15 to slide along the trajectory of the first support rod 4 (1) When the overall length of the first support rod 4 and the second support rod 5 increases (that is, the first support rod 4 and the second support rod 5 need to provide stable auxiliary support for the lifting device 2), the supporting rod 15 slides along the trajectory of the inclined block 14. When the hydraulic device body 3 drives the lifting device 2 to move to a suitable angle, the driving member 16 is started (the driving member 16 is a device for forward and reverse rotation at the driving end, preferably a motor) to drive the supporting rod 15 to rotate counterclockwise, so that the supporting rod 15 rotates into the gap between the two adjacent inclined blocks 14, so that the supporting rod 15 is pressed against the inclined block 14, so that The inclined plane block 14 provides a stable supporting force for the supporting rod 15 and the second supporting rod 5; (2) when the overall length of the first supporting rod 4 and the second supporting rod 5 is reduced (that is, the first supporting rod 4 and the second supporting rod 5 do not need to provide stable auxiliary support for the lifting device 2), the driving member 16 is started to drive the supporting rod 15 to rotate clockwise, so that the supporting rod 15 is rotated out from the gap between the two adjacent inclined plane blocks 14, so that the supporting rod 15 and the inclined plane block 14 are separated from each other, so that the inclined plane block 14 no longer provides a supporting force for the supporting rod 15 and the second supporting rod 5; through the change in the length between the first supporting rod 4 and the second supporting rod 5, the first supporting rod 4 and the second supporting rod 5 can provide a stable supporting force for the lifting device 2, thereby preventing the lifting device 2 from rotating back to its original position and causing a mechanical accident when the hydraulic device body 3 is depressurized.

[0034] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A hydraulic device, comprising a chassis, a lifting device and a hydraulic device body, wherein the lifting device is rotatably mounted on the chassis, the hydraulic device body is rotatably mounted on the chassis, and the output end of the hydraulic device body is rotatably connected to the lifting device, characterized in that: It also includes a telescopic support unit, which includes a first support rod and a second support rod. One end of the first support rod is rotatably mounted on the chassis, the other end of the first support rod is slidably sleeved with the second support rod, and the end of the second support rod is rotatably connected to the lifting device.

2. A hydraulic device according to claim 1, characterized in that: The first support rod is provided with a slide groove, and the second support rod is slidably installed in the slide groove.

3. A hydraulic device according to claim 2, characterized in that: The inner walls on both sides of the slide groove are symmetrical inclined surfaces, and the two symmetrical inclined surfaces of the slide groove are inclined downward from an end close to the lifting device to an end away from the lifting device.

4. A hydraulic device according to claim 3, characterized in that: A plurality of semicircular grooves are evenly arranged on the two inclined surfaces of the slide groove along the linear direction thereof.

5. A hydraulic device according to claim 4, characterized in that: The second support rod is symmetrically provided with two grooves on both sides of one end inside the slide slot, and a clamping rod is slidably installed in each of the two grooves. The two clamping rods and the corresponding grooves are connected via a first elastic member.

6. A hydraulic device according to claim 5, characterized in that: The two abutting rods are in abutment with the semicircular grooves on the corresponding inclined surfaces.

7. A hydraulic device according to claim 6, characterized in that: The two clamping rods are telescopic structures, and a flat groove is opened at one end of the two clamping rods close to the second support rod. The two clamping rods are slidably installed in the flat groove at one end away from the second support rod, and the end of the clamping rod away from the second support rod and the flat groove are connected by a second elastic member.

8. A hydraulic device according to claim 1, characterized in that: A plurality of inclined plane blocks are evenly arranged on a side wall of one side of the first support rod, and each of the inclined plane blocks is inclined downward from an end close to the lifting device to an end away from the lifting device.

9. A hydraulic device according to claim 8, characterized in that: A supporting rod is rotatably mounted on one end of the second supporting rod located inside the slide slot, and one end of the supporting rod and the inclined surface block are in abutment with each other.

10. A hydraulic device according to claim 9, characterized in that: A driving member is installed on one side wall of the second supporting rod, and the output end of the driving member is connected to the other end of the supporting rod.

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