CN209921279U

CN209921279U - Axial pressure universal joint, landing leg device, pile driver, crane or crane

Info

Publication number: CN209921279U
Application number: CN201920161733.1U
Authority: CN
Inventors: 魏伍强
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-01-30
Filing date: 2019-01-30
Publication date: 2020-01-10
Anticipated expiration: 2029-01-30

Abstract

The utility model discloses an axial pressure universal joint includes that the upper bearing seat, lower bearing press seat, primary shaft and secondary shaft, the primary shaft is connected to constitute non-cross axle structure with the secondary shaft, the both ends of primary shaft with the upper bearing seat rotates to be connected, the both ends of secondary shaft with the seat rotation is pressed to lower bearing is connected be equipped with on the upper bearing seat with the bearing surface that the primary shaft corresponds be equipped with on the lower bearing press seat with the bearing surface that the secondary shaft corresponds. The landing leg device comprises an oil cylinder and a landing leg, and further discloses a pile machine, a crane or a crane, and the landing leg device is used. The utility model discloses the universal joint only bears perpendicular axial pressure, under the condition of same materials, compares prior art and can bear bigger power, and is more reliable and more stable, practices thrift more materials, and it is more convenient to use, can also retrain the stabilizer blade simultaneously and rotate, especially can be more obvious to rectangle stabilizer blade application advantage effect.

Description

Axial pressure universal joint, landing leg device, pile driver, crane or crane

Technical Field

The utility model relates to an engineering machine tool technical field, concretely relates to axial pressure universal joint, landing leg device and stake machine, hoist or crane.

Background

The support legs are used as main parts for forming supports in engineering machinery, and are widely applied to the engineering machinery of concrete pump trucks, pile machines, overhead working trucks, truck-mounted cranes and the like so as to form stable supports during the operation of the engineering machinery.

The supporting leg ball head fixing device comprises a supporting body and a ball head seat, wherein a spherical hole is formed in the ball head seat, and one end of the supporting body is connected with a ball head matched with the spherical hole. The ball head is used for connecting, the service life is short, the support legs can fall off due to long-time abrasion, the operation safety can be affected when the support legs are serious, and the support legs can rotate freely and are not constrained, so that the use is inconvenient.

Further, chinese patent publication No. CN202358065U (publication date: 8/1/2012) discloses a leg mechanism of a working vehicle, comprising: the device comprises a vertical telescopic leg square box, a first pin shaft, a connecting block, a second pin shaft and support legs; the universal joint for the support legs is characterized in that the connecting block in the universal joint for the support legs is provided with two mutually perpendicular holes, namely an X shaft hole and a Y shaft hole, the connecting block is located in the vertical telescopic leg square box, the first pin shaft is hinged to the vertical telescopic leg square box through the X shaft hole of the connecting block, and the second pin shaft is hinged to the connecting block through the Y shaft hole of the connecting block. The existing support leg mechanism has the function of a universal joint, is installed on a movable support leg, supports a vehicle body through a square box support leg, completely contacts with the ground through the bottom surface of a circular support leg disc of the support leg mechanism, a support leg oil cylinder is not subjected to lateral force, so that the flexibility and the stability are improved, but a shear force can be received by a pin shaft during working, the size of the support leg connecting structure needs to be increased on some engineering machines with larger stress, the size of the support leg mechanism is increased, and the raw materials for production and manufacturing are increased.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a simple structure, material saving's axial pressure universal joint, landing leg device and stake machine, hoist or crane to the landing leg stabilizer blade connection structure who solves among the prior art uses inconveniently, poor stability, the short technical problem of life.

In order to solve the technical problem, the utility model adopts the following technical scheme:

the design is an axial pressure universal joint, which comprises an upper bearing seat, a lower bearing seat, a first shaft and a second shaft, wherein the first shaft and the second shaft are connected to form a non-crossed cross shaft structure, the two ends of the first shaft are rotatably connected with the upper bearing seat, the two ends of the second shaft are rotatably connected with the lower bearing seat, and a pressure bearing surface corresponding to the first shaft is arranged on the upper bearing seat and a pressure bearing surface corresponding to the second shaft is arranged on the lower bearing seat.

Further, in the above axial pressure universal joint, the upper bearing pressure seat and the lower bearing pressure seat are respectively formed by butt joint of two half-axle pressure seats.

Further, in the above axial pressure universal joint, the half-bearing pressing seat includes a connecting plate and an ear plate vertically connected to the connecting plate, a bearing hole is formed in the ear plate, two ends of the first shaft or the second shaft are rotatably connected to the bearing hole through bearings, a bearing portion is arranged on one side of the ear plate, and the bearing surface is a semi-cylindrical groove formed in the bearing portion and corresponding to the first shaft or the second shaft.

Further, in the above axial pressure universal joint, the first shaft and the second shaft are an integrally formed structure.

Further, in the above axial pressure universal joint, the first shaft and the second shaft are both stepped shafts.

Furthermore, in the above axial pressure universal joint, connecting holes are provided at both the top of the upper bearing pressure seat and the bottom of the lower bearing pressure seat.

Further, in the above axial pressure universal joint, mounting grooves are provided in the centers of the top surface of the upper bearing seat and the bottom surface of the lower bearing seat.

The supporting leg device comprises an oil cylinder, supporting legs and the axial pressure universal joint, wherein an upper bearing seat is connected with the oil cylinder, and a lower bearing seat is connected with the supporting legs.

Preferably, in the above-described leg device, the support surface of the leg is rectangular.

The support leg device of the pile machine, the crane or the crane is the support leg device.

Compared with the prior art, the utility model has the beneficial technical effects of:

the utility model has simple structure, simple production process and convenient assembly and disassembly, when in use, the universal joint only bears vertical axial pressure, and under the condition of the same material, compared with the prior art, the universal joint can bear larger force, is more stable and reliable and can save materials; the stabilizer blade can be around first axle and second axle rotation, can restrict the stabilizer blade and rotate, and especially to rectangle stabilizer blade application advantage effect can be more obvious, compares bulb connection use more convenient, reliable.

Drawings

Fig. 1 is a perspective view of an embodiment of an axial pressure universal joint of the present invention;

fig. 2 is an exploded view of an embodiment of the axial pressure joint of the present invention;

FIG. 3 is a perspective view of a half bearing pressure seat in an embodiment of the axial pressure gimbal according to the present invention;

fig. 4 is a schematic view of a partial connection structure in an embodiment of the leg device of the present invention.

In the figure, 10, a universal joint, 10a, an upper bearing seat, 10b, a lower bearing press seat, 100, an axle bearing seat, 101, an ear plate, 102, a connecting plate, 1021, a connecting hole, 1022, a mounting groove, 103, a bearing part, 1031, a semi-cylindrical groove, 10c, a first shaft, 10d, a second shaft, 20, an oil cylinder and 30 support legs.

Detailed Description

The following embodiments are only intended to illustrate the present invention in detail, and do not limit the scope of the present invention in any way.

The components, structures and the like in the following examples are all conventional commercially available products or conventional product structures unless otherwise specified.

Example (b): an axial pressure universal joint, see fig. 1 to 3, includes an upper bearing holder 10a, a lower bearing holder 10b, a first shaft 10c, and a second shaft 10d. The first shaft 10c and the second shaft 10d are fixedly connected in a vertically staggered manner to form a non-crossed cross shaft structure, and the first shaft 10c and the second shaft 10d are of an integrally formed structure and can be processed by precision casting.

The two ends of the first shaft 10c are rotatably connected with the upper bearing press seat 10a, the two ends of the second shaft 10d are rotatably connected with the lower bearing press seat 10b, the first shaft 10c and the second shaft 10d are both stepped shafts, axial positioning of the bearing is facilitated, a pressure bearing face corresponding to the first shaft 10c is arranged on the upper bearing press seat 10a, and a pressure bearing face corresponding to the second shaft 10d is arranged on the lower bearing press seat 10b.

The upper bearing press seat 10a is formed by butting two half bearing press seats 100, and the lower bearing press seat 10b is also formed by butting two half bearing press seats 100. The upper half bearing press seat 100 and the lower half bearing press seat 100 have the same specification and size and are beneficial to batch production.

The half bearing press seat 100 comprises a connecting plate 102 and an ear plate 101 vertically connected with the connecting plate 102, a bearing hole is formed in the ear plate 101, and two ends of the first shaft 10c and two ends of the second shaft 10d are respectively rotatably connected in the bearing hole through bearings. Be equipped with bearing portion 103 in otic placode 101 one side, the bearing surface is for establishing the semi-cylindrical recess 1031 on bearing portion 103, and semi-cylindrical recess 1031 matches with the face of cylinder of primary shaft 10c or secondary shaft 10d, bears the extrusion force through the bearing surface, makes and using the utility model discloses time, the utility model discloses only bear vertically axial pressure, compare with prior art, can bear bigger pressure, can material saving, more reliable and more stable. In addition, the connection between the first shaft 10c and the second shaft 10d and the half bearing press seat 100 can also restrain the rotation of the supporting feet, especially, the application advantage effect of the rectangular supporting feet is more obvious, the half bearing press seat 100 comprises a connecting plate 102, an ear plate 101, a bearing hole and a pressure-bearing portion 103 which can be formed in one step through precision casting, and the half bearing press seat is simple in production process and convenient to machine.

A connection hole 1021 is provided at the top of the upper bearing press seat 10a and the bottom of the lower bearing press seat 10b, i.e., the connection plate 102, for connection.

Mounting grooves 1022 are formed in the centers of the top surface of the upper bearing press seat 10a and the bottom surface of the lower bearing press seat 10b.

The utility model provides a landing leg device, see fig. 4, including hydro-cylinder 20 and stabilizer blade 30, still include foretell axial pressure universal joint 10, go up bearing housing 10a and lead to bolted connection through connecting hole 1021 and hydro-cylinder 20, lower bearing pressure seat 10b also passes through connecting hole 1021 and stabilizer blade 30 bolted connection, and the installation of being convenient for is dismantled, and the holding surface of stabilizer blade 30 is the rectangle.

Additionally, the utility model also provides a stake machine, hoist or crane, the landing leg device of stake machine, hoist or crane is foretell landing leg device.

The present invention has been described in detail with reference to the accompanying drawings and embodiments, but those skilled in the art will understand that various specific parameters in the above embodiments can be changed without departing from the spirit of the present invention to form a plurality of specific embodiments, which are the common variation ranges of the present invention and will not be described in detail herein.

Claims

1. The utility model provides an axial pressure universal joint, its characterized in that includes upper bearing pressure bearing seat, lower bearing pressure seat, primary shaft and secondary shaft, the primary shaft is connected with the secondary shaft and is constituteed non-crisscross cross axle structure, the both ends of primary shaft with upper bearing pressure bearing seat rotates to be connected, the both ends of secondary shaft with lower bearing pressure seat rotates to be connected be equipped with on the upper bearing pressure bearing seat with the bearing surface that the primary shaft corresponds be equipped with on the lower bearing pressure seat with the bearing surface that the secondary shaft corresponds.

2. The axial pressure joint according to claim 1, wherein the upper bearing shoe and the lower bearing shoe are each comprised of two half bearing shoes that are butted together, respectively.

3. The axial pressure universal joint according to claim 2, wherein the half-bearing pressure seat comprises a connecting plate and an ear plate vertically connected with the connecting plate, a bearing hole is formed in the ear plate, two ends of the first shaft or the second shaft are respectively and rotatably connected in the bearing hole through bearings, a bearing part is arranged on one side of the ear plate, and the bearing surface is a semi-cylindrical groove arranged on the bearing part and corresponding to the first shaft or the second shaft.

4. The axial pressure joint as recited in claim 3 wherein the first shaft and the second shaft are of a unitary construction.

5. The axial pressure joint as recited in claim 4, wherein the first shaft and the second shaft are stepped shafts.

6. The axial pressure gimbal according to claim 1, wherein connecting holes are provided at both the top of the upper bearing press and the bottom of the lower bearing press.

7. The axial pressure gimbal according to claim 1, wherein an installation groove is provided at the center of each of the top surface of the upper bearing holder and the bottom surface of the lower bearing holder.

8. A supporting leg device comprises an oil cylinder and supporting legs and is characterized by further comprising the axial pressure universal joint as claimed in any one of claims 1 to 7, wherein the upper bearing seat is connected with the oil cylinder, and the lower bearing seat is connected with the supporting legs.

9. The leg arrangement as claimed in claim 8, wherein the support surface of the foot is rectangular.

10. A pile machine characterized in that the leg device of the pile machine is the leg device of claim 9.

11. A crane, characterized in that the leg device of the crane is the leg device of claim 9.

12. A crane, wherein the crane leg assembly is the leg assembly of claim 9.