Hydraulic brake device of trailer bucket

Abstract

The utility model discloses a trailer bucket hydraulic brake device which is arranged on a trailer bucket main shaft and comprises a brake reverse lever, a hydraulic cylinder and a brake supporting rod. The left side and the right side of the brake reverse lever are sleeved with wear-resisting rotating sleeves, short pipes are fixed to the bottoms of the wear-resisting rotating sleeves, an oil cylinder supporting arm is fixed to the middle of the brake reverse lever, and brake supporting rod supports are fixed to the left end and the right end of the brake reverse lever respectively. The end of a piston rod of the hydraulic cylinder is hinged to the top of the oil cylinder supporting arm, the hydraulic cylinder support comprises a strip-shaped supporting plate, one end of the strip-shaped supporting plate can be connected with the trailer main shaft in a welded mode, and the other end of the strip-shaped supporting plate is fixedly connected with a base of the hydraulic cylinder through a supporting rod. One end of the brake supporting rod is an installation end and is connected with the top of the brake supporting rod support, and the other end of the brake supporting rod is a hinged end and can be connected with a connecting lug plate fixed to the adjusting arm in a hinged mode. After the tractor is applied, a hydraulic system on a tractor head in the prior art can be directly utilized, and an air pump assembly does not need to be additionally arranged.

Description

Technical Field

[0001] The utility model relates to a trailer bucket brake device, in particular to a trailer bucket hydraulic brake device. Background Art

[0002] Tractors are widely used in rural areas. Tractors include tractor heads. The tractor head can carry out corresponding agricultural production operations after mounting corresponding agricultural machinery. For example, the tractor head can carry out rotary tillage operations on farmland after mounting a rotary tiller, plowing operations can be carried out after mounting a tractor head, and harrowing operations can be carried out after mounting a tractor head. Usually, the tractor head is equipped with a hydraulic system to provide power for driving agricultural machinery such as rotary tillers, plows or harrows.

[0003] The tractor head also often needs to be mounted with a trailer bucket, and the tractor head can perform corresponding transportation tasks after mounting the trailer bucket. The bottom of the trailer bucket has a trailer bucket main shaft, and hubs are installed at both ends of the trailer bucket main shaft, and matching tires are installed on the hubs. The hubs are also equipped with matching brake discs, and the brake disc is connected to a brake eccentric rod, and an adjustment arm is fixed to one end of the brake eccentric rod, and a connecting ear plate is fixed to the adjustment arm. The brake eccentric rod is fixed to one side of the trailer main shaft through an eccentric rod bracket. Driving the adjustment arm to rotate can drive the brake eccentric rod to rotate accordingly, which can drive the eccentric rotation of the brake disc, and then the braking action can be performed.

[0004] In the prior art, in order to drive the brake disc to rotate eccentrically, an air pump assembly is added to the tractor head, and a driving wall is set to connect with the adjustment arm at one end of the brake eccentric rod, and the brake eccentric rod is driven to rotate pneumatically to perform the braking action. Adding an air pump assembly to the tractor head and setting a driving wall not only greatly increases the production cost, but also requires readjustment and optimization of the structural layout of the tractor head, which is labor-intensive and requires a high level of design. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide a trailer bucket hydraulic brake device. After the trailer bucket is applied with the utility model, the power provided by the hydraulic system on the tractor head can be directly used to perform braking action, and no air pump assembly needs to be added to the tractor head.

[0006] In order to solve the above technical problems, the utility model provides a trailer bucket hydraulic brake device, which is arranged on the trailer bucket main shaft, and wheel hubs are installed at both ends of the trailer bucket main shaft, and brake discs are installed on the wheel hubs, and the brake discs are connected to brake eccentric rods, and an adjusting arm is fixed to one end of the brake eccentric rod, and a connecting ear plate is fixed to the adjusting arm. The brake eccentric rod is fixed to one side of the trailer main shaft through an eccentric rod bracket, and is characterized in that: it includes a brake counter-bar, a hydraulic cylinder and a brake support rod; the left and right sides of the brake counter-bar are respectively provided with wear-resistant rotating sleeves, and the bottom of the wear-resistant rotating sleeve is fixed with a short tube that can be welded on the trailer bucket main shaft, a cylinder support arm is fixed to the middle position of the brake counter-bar, and brake support rods are respectively fixed to the left and right ends of the brake counter-bar Rod bracket; the hydraulic cylinder is provided with an oil inlet interface and an oil outlet interface, the end of the piston rod of the hydraulic cylinder is hingedly connected to the top of the cylinder support arm, and also includes a hydraulic cylinder bracket that fixedly supports the hydraulic cylinder, the hydraulic cylinder bracket includes a strip support plate one end of which can be welded to the trailer main shaft, and the other end of the strip support plate is fixedly connected to the base of the hydraulic cylinder through a fixedly connected support rod, the extension and retraction of the hydraulic cylinder piston rod can drive the rotation of the cylinder support arm, and then can drive the corresponding rotation of the brake counter bar; one end of the brake support rod is the mounting end, which is connected to the top of the brake support rod bracket, and the other end is the hinged end, which can be hingedly connected to the connecting ear plate fixed on the adjusting arm.

[0007] As an improvement of the present invention, a buffer spring is mounted on the brake support rod, a spring limiting nut is screwed onto the brake support rod near the hinged end, a strip spring limiting hole is opened on the top of the brake support rod bracket, the mounting end passes through the strip spring limiting hole, and a locking nut is screwed onto the end of the mounting end.

[0008] Furthermore, both sides of the strip support plate are connected with triangular reinforcing ribs which can be welded on the main shaft of the trailer.

[0009] The trailer bucket hydraulic brake device adopts the above-mentioned structure and is arranged on the trailer bucket main shaft when in use. After the application of the utility model, the hydraulic system on the tractor head in the prior art can be directly utilized without the need to newly install an air pump assembly. The extension and retraction of the hydraulic cylinder piston rod described in the utility model can drive the rotation of the oil cylinder support arm, and then drive the rotation of the brake counterbar. When the brake support rod bracket rotates under the drive of the brake counterbar, it can drive the brake support rod to promote the rotation of the adjustment arm, and then the braking action can be performed; after the brake support rod described in the utility model is provided with a buffer spring, it can prevent the occurrence of brake locking and is beneficial to the resetting of the brake support rod bracket; after the two sides of the strip support plate are connected with triangular reinforcing ribs, the installation strength of the strip support plate can be greatly improved.

[0010] In order to solve the above technical problems, the utility model of the trailer bucket hydraulic brake device is arranged on the trailer bucket main shaft, wheel hubs are installed at both ends of the trailer bucket main shaft, brake discs are installed on the wheel hubs, the brake discs are connected to brake eccentric rods, an adjusting arm is fixed to one end of the brake eccentric rod, a connecting ear plate is fixed to the adjusting arm, the brake eccentric rod is fixed to one side of the trailer main shaft through an eccentric rod bracket, and is characterized in that: it includes 2 short brake reverse bars, 2 hydraulic cylinders and 2 brake support rods; the 2 short brake reverse bars are respectively provided with wear-resistant rotating sleeves, the bottom of the wear-resistant rotating sleeves is fixed with a short tube that can be welded on the trailer bucket main shaft, the relative inner sides of the 2 short brake reverse bars are respectively fixed with oil cylinder support arms, and the relative outer sides of the 2 short brake reverse bars are respectively fixed with brake support rod support arms. Frame; each of the hydraulic cylinders is respectively provided with an oil inlet interface and an oil outlet interface, the piston rod end of each hydraulic cylinder is hingedly connected to the top of the cylinder support arm, and also includes a hydraulic cylinder bracket that fixedly supports each of the hydraulic cylinders, the hydraulic cylinder bracket includes a strip support plate that can be welded to the trailer main shaft at one end, and the other end of the strip support plate is fixedly connected to the base of the hydraulic cylinder through a fixedly connected support rod, the extension and retraction of the hydraulic cylinder piston rod can drive the rotation of the cylinder support arm, and then can drive the corresponding rotation of the brake short anti-bar 10; one end of each of the brake support rods is an installation end, which is connected to the top of the corresponding brake support rod bracket, and the other end is a hinged end, which can be hingedly connected to the connecting ear plate fixed on the corresponding adjusting arm.

[0011] The trailer bucket hydraulic brake device adopting the above structure is set on the trailer bucket main shaft when in use, and two short brake counter bars are installed at appropriate positions on both sides of the middle of the trailer bucket main shaft. The oil inlet and outlet pipes on the tractor head are connected to the oil inlet interface and oil outlet interface on the two hydraulic cylinders in the utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0013] Figure 1 It is a top view structural schematic diagram of a trailer bucket hydraulic brake device of the first embodiment of the utility model when it is arranged on the trailer bucket main shaft.

[0014] Figure 2 yes Figure 1 A-direction view.

[0015] Figure 3 is along Figure 1 Schematic diagram of the cross-sectional structure along line BB.

[0016] Figure 4 is along Figure 1 Schematic diagram of the cross-sectional structure along the CC line.

[0017] Figure 5It is a top view structural schematic diagram of a trailer bucket hydraulic brake device of a second embodiment of the utility model when it is arranged on the trailer bucket main shaft.

[0018] Figure 6 yes Figure 5 P-direction view.

[0019] Figure 7 is along Figure 5 Schematic diagram of the cross-sectional structure along the DD line.

[0020] Figure 8 is along Figure 5 Schematic diagram of the cross-sectional structure along line EE. DETAILED DESCRIPTION

[0021] See also Figure 1 - Figure 4The first embodiment of the utility model is a trailer bucket hydraulic brake device, which is installed on the trailer bucket main shaft 1 at the bottom of the trailer bucket when in use. Wheel hubs 2 are installed at both ends of the trailer bucket main shaft, and brake discs 3 are installed on the wheel hubs. The brake discs are connected to brake eccentric rods 4, and an adjusting arm 5 is fixed to one end of the brake eccentric rod, and a connecting ear plate 6 is fixed to the adjusting arm. The brake eccentric rod is fixed to one side of the trailer main shaft through an eccentric rod bracket 7, and the brake eccentric rod can rotate on the eccentric rod bracket. It is characterized in that: the trailer bucket hydraulic brake device includes a brake counter-bar 10, a hydraulic cylinder 20 and a brake support rod 30; the left and right sides of the brake counter-bar 10 are respectively covered with wear-resistant rotating sleeves 11, and the bottom of the wear-resistant rotating sleeve is fixed with a short tube 12 that can be welded on the trailer bucket main shaft, and a cylinder support arm 21 is fixed to the middle position of the brake counter-bar, and brake support rod brackets 31 are respectively fixed to the left and right ends of the brake counter-bar. ; The hydraulic cylinder 20 is provided with an oil inlet interface 22 and an oil outlet interface 23, the piston rod end of the hydraulic cylinder is hingedly connected to the top of the cylinder support arm, and also includes a hydraulic cylinder bracket 24 for fixedly supporting the hydraulic cylinder, the hydraulic cylinder bracket includes a strip support plate 241 of which one end can be welded to the trailer main shaft, and the other end of the strip support plate is fixedly connected to the base of the hydraulic cylinder through a fixedly connected support rod 242, the extension and retraction of the hydraulic cylinder piston rod can drive the rotation of the cylinder support arm 21, and then can drive the corresponding rotation of the brake counter bar 10; one end of the brake support rod 30 is the mounting end 301, which is connected to the top of the brake support rod bracket, and the other end is the hinged end 302, which can be hingedly connected to the connecting ear plate fixed on the adjusting arm, and when the brake support rod bracket 31 rotates driven by the brake counter bar 10, it can drive the brake support rod to promote the rotation of the adjusting arm. The brake support rod 30 is provided with a buffer spring 32, a spring limiting nut 33 is screwed on the brake support rod near the hinge end 302, a strip spring limiting hole 34 is provided on the top of the brake support rod bracket 31, the installation end 301 passes through the strip spring limiting hole, a locking nut 35 is screwed on the end of the installation end, and a washer 36 is installed between the top of the brake support rod bracket 31 and the locking nut. The two sides of the strip support plate 241 are connected with triangular reinforcing ribs 242 that can be welded on the main shaft of the trailer.

[0022] When the utility model is installed on the main shaft of the trailer bucket, the short tube 12 at the bottom of the wear-resistant rotating sleeve is first welded on the main shaft of the trailer bucket, and then one end of the strip support plate 241 is welded on the main shaft of the trailer bucket, and then the hinged end 302 of the brake support rod 30 is hingedly connected to the connecting ear plate 6 fixed on the adjusting arm. When the trailer bucket is mounted on the tractor head, the existing hydraulic system on the tractor head can be directly used to connect the oil inlet and outlet pipes on the tractor head to the oil inlet interface 22 and the oil outlet interface 23 on the hydraulic cylinder in the utility model.

[0023] See also Figure 5 - Figure 8 , Figure 5- Figure 8 The second embodiment of the trailer bucket hydraulic brake device of the utility model is shown. Compared with the trailer bucket hydraulic brake device of the first embodiment, the main differences are: it includes two short brake reversing bars 10' and two hydraulic cylinders; the two short brake reversing bars 10' are respectively provided with wear-resistant swivel sleeves 11, the bottom of the wear-resistant swivel sleeves is fixed with a short tube 12 that can be welded on the trailer bucket main shaft, the relative inner sides of the two short brake reversing bars are respectively fixed with cylinder support arms 21, and the relative outer sides of the two short brake reversing bars are respectively fixed with brake support rod brackets 31; other technical features are the same as those of the trailer bucket hydraulic brake device of the first embodiment. When the utility model is installed on the trailer main shaft, first install two brake short reverse bars 10' at appropriate positions on both sides of the middle of the trailer main shaft, then weld the short tubes 12 at the bottom of the wear-resistant rotating sleeves on the two brake short reverse bars to the trailer main shaft, then weld one end of the strip support plate 241 to the trailer main shaft, and then hinge the hinge end 302 of the brake support rod 30 to the connecting ear plate 6 fixed on the adjusting arm. When the trailer bucket is mounted on the tractor head, the existing hydraulic system on the tractor head can be directly used to connect the oil inlet and outlet pipes on the tractor head to the oil inlet interface 22 and the oil outlet interface 23 on the two hydraulic cylinders in the utility model.

[0024] It can be understood that the above specific description of the utility model is only used to illustrate the utility model and is not limited to the technical solution described in the embodiments of the utility model. Any modification or equivalent replacement of the utility model to achieve the same technical effect is within the protection scope of the utility model.

Claims

1. A trailer bucket hydraulic brake device is arranged on the trailer bucket main shaft, with hubs at both ends of the trailer bucket main shaft, brake discs on the hubs, brake eccentric rods connected to the brake discs, an adjustment arm fixed to one end of the brake eccentric rod, a connecting ear plate fixed to the adjustment arm, and the brake eccentric rod is fixed to one side of the trailer main shaft through an eccentric rod bracket, characterized in that: The brake lever comprises a brake counterbar, a hydraulic cylinder and a brake support rod; the left and right sides of the brake counterbar are respectively provided with wear-resistant swivel sleeves, the bottom of the wear-resistant swivel sleeve is fixed with a short tube which can be welded on the main shaft of the trailer, the middle position of the brake counterbar is fixed with a cylinder support arm, and the left and right ends of the brake counterbar are respectively fixed with brake support rod brackets; the hydraulic cylinder is provided with an oil inlet interface and an oil outlet interface, the piston rod end of the hydraulic cylinder is hingedly connected to the top of the cylinder support arm, and also comprises a hydraulic cylinder bracket which fixedly supports the hydraulic cylinder, the hydraulic cylinder bracket comprises a strip support plate which can be welded to the main shaft of the trailer, the other end of the strip support plate is fixedly connected to the base of the hydraulic cylinder through a fixedly connected support rod, the extension and retraction of the hydraulic cylinder piston rod can drive the rotation of the cylinder support arm, and then can drive the corresponding rotation of the brake counterbar; one end of the brake support rod is a mounting end which is connected to the top of the brake support rod bracket, and the other end is a hinged end which can be hingedly connected to the connecting ear plate fixed on the adjusting arm.

2. The trailer bucket hydraulic brake device according to claim 1, characterized in that: The brake support rod is provided with a buffer spring, a spring limiting nut is screwed on the brake support rod near the hinged end, a strip spring limiting hole is opened on the top of the brake support rod bracket, the installation end passes through the strip spring limiting hole, and a locking nut is screwed on the end of the installation end.

3. The trailer bucket hydraulic brake device according to claim 2, characterized in that: A washer is arranged between the top of the brake support rod bracket and the locking nut.

4. The trailer bucket hydraulic brake device according to claim 1, characterized in that: The two sides of the strip support plate are connected with triangular reinforcing ribs which can be welded on the main shaft of the trailer.

5. A trailer bucket hydraulic brake device is arranged on the trailer bucket main shaft, with hubs at both ends of the trailer bucket main shaft, brake discs on the hubs, brake eccentric rods connected to the brake discs, an adjustment arm fixed to one end of the brake eccentric rod, a connecting ear plate fixed to the adjustment arm, and the brake eccentric rod is fixed to one side of the trailer main shaft through an eccentric rod bracket, characterized in that: The invention comprises two brake short reverse bars, two hydraulic cylinders and two brake support rods; the two brake short reverse bars are respectively provided with wear-resistant swivel sleeves, the bottom of the wear-resistant swivel sleeves are fixed with short tubes which can be welded on the main shaft of the trailer, the relative inner sides of the two brake short reverse bars are respectively fixed with oil cylinder support arms, and the relative outer sides of the two brake short reverse bars are respectively fixed with brake support rod brackets; each of the hydraulic cylinders is respectively provided with an oil inlet interface and an oil outlet interface, the piston rod end of each hydraulic cylinder is hingedly connected to the top of the oil cylinder support arm, and also comprises a fixed support for each The cam is connected to the hydraulic cylinder by a spring, and the cam is connected to the hydraulic cylinder by a spring. The cam is connected to the hydraulic cylinder by a spring, and the cam is connected to the hydraulic cylinder by a spring. The cam is connected to the hydraulic cylinder by a spring.

6. The trailer bucket hydraulic brake device according to claim 5, characterized in that: The brake support rod is provided with a buffer spring, a spring limiting nut is screwed on the brake support rod near the hinged end, a strip spring limiting hole is opened on the top of the brake support rod bracket, the installation end passes through the strip spring limiting hole, and a locking nut is screwed on the end of the installation end.

7. The trailer bucket hydraulic brake device according to claim 6, characterized in that: A washer is arranged between the top of the brake support rod bracket and the locking nut.

8. The trailer bucket hydraulic brake device according to claim 5, characterized in that: The two sides of the strip support plate are connected with triangular reinforcing ribs which can be welded on the main shaft of the trailer.

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