CN213537086U

CN213537086U - Swing cylinder motor suitable for hoist

Info

Publication number: CN213537086U
Application number: CN202021401374.1U
Authority: CN
Inventors: 蔡国定; 何关清; 金鑫
Original assignee: Wuhu Zhongyi Hydraulic Technology Co ltd
Current assignee: Wuhu Zhongyi Hydraulic Technology Co ltd
Priority date: 2020-07-16
Filing date: 2020-07-16
Publication date: 2021-06-25
Anticipated expiration: 2030-07-16

Abstract

The utility model discloses a tilt cylinder motor suitable for hoist, including front cover and back cover, fixed connection between front cover and the back cover, front cover and back cover cooperate to form the casing of motor, be equipped with the oil-through disc on the back cover, fixed connection between oil-through disc and the back cover, be equipped with the cross axle between oil-through disc and the back cover, be equipped with the drive division between front cover and the back cover, the control system of drive division adopts hydraulic control system; by adopting the scheme of the utility model, the swing cylinder motor can be suitable for hoisting of the crane, the functions of the swing cylinder motor are more abundant, and the brake of the hoisting of the crane can be controlled; the heavy object is more steady to hoist and transfer, and this functional unit integration has reduced hydraulic line's installation on logical oil pan subassembly simultaneously, and the problem such as the motor internal wear seriously generates heat has been solved in the static pressure balance design, can make the motor work under the high-speed high-load condition of high pressure, has obviously promoted hoist operating efficiency, makes the tilt cylinder motor can extensively use on hoist.

Description

Swing cylinder motor suitable for hoist

Technical Field

The utility model belongs to the technical field of hydraulic pressure, more specifically says, the utility model relates to a tilt cylinder motor suitable for hoist.

Background

The swing cylinder motor is a connecting rod-free crankshaft low-speed high-torque hydraulic motor with oil distributed on the end surface, converts hydraulic energy into mechanical energy, is widely applied to a crane winch in the engineering machinery industry and is used for driving the winch to complete the hoisting and lowering of heavy objects; at present, the crane industry requires to promote the operating efficiency and the falling stability, and the hoist motor of the crane develops towards high speed and high load direction, and the defects of the common swing cylinder motor are exposed: firstly, an oilless bearing is embedded in a hole for installing a cylinder body in the rear cover of the shell to reduce friction, the oilless bearing has poor wear resistance under the condition of high speed and high load, and a motor is greatly leaked and cannot be used after being damaged; and secondly, an additional valve block is required to be installed to integrate the shuttle valve and the balance valve to control the brake and reduce the stability, so that the connecting pipeline and the installation volume are increased.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a tilt cylinder motor suitable for hoist that stability is strong is provided.

In order to realize the purpose, the utility model discloses the technical scheme who takes does: the utility model provides a tilt cylinder motor suitable for hoist, includes protecgulum and hou gai, fixed connection between protecgulum and the back lid, the protecgulum constitutes the casing of motor with the cooperation of back lid, after cover and be equipped with logical food tray, lead to fixed connection between food tray and the back lid, lead to and be equipped with the cross axle between food tray and the back lid, be equipped with transmission portion between protecgulum and the back lid, the control system of transmission portion adopts hydraulic control system.

The utility model discloses a tilt cylinder motor suitable for hoist, transmission portion includes cylinder body, bent axle, first roller bearing and second ball bearing, and first roller bearing and second ball bearing set up respectively in the bent axle both sides, wherein first roller bearing with fixed connection between the protecgulum, second roller bearing with fixed connection between the back lid, the bent axle is fixed to be set up on the cylinder body, swing joint between cylinder body and protecgulum and the back lid.

The utility model discloses a tilt cylinder motor suitable for hoist, the cylinder body both sides are equipped with first oil through hole and second oil through hole respectively, are equipped with the plunger body in the cylinder body, fixed connection between the plunger body and the cylinder body.

The utility model discloses a tilt cylinder motor suitable for hoist, hydraulic control system includes balanced valve, shuttle valve, tribit two-way switching-over valve and hoist stopper, and tribit two-way switching-over valve meso position is equipped with oil inlet P and oil return opening T, and the tilt cylinder motor is direct to be connected with tribit two-way switching-over valve, and the one end of shuttle valve is one-way inflow, and the other end is two-way inflow.

The utility model discloses a tilt cylinder motor suitable for hoist, lead to the food tray with carry out threaded connection through using first countersunk screw between the back lid, the back lid with carry out threaded connection through using second countersunk screw between the protecgulum.

By adopting the scheme of the utility model, the swing cylinder motor can be suitable for hoisting of the crane, the functions of the swing cylinder motor are more abundant, and the brake of the hoisting of the crane can be controlled; the heavy object is more steady to hoist and transfer, and this functional unit integration has reduced hydraulic line's installation on logical oil pan subassembly simultaneously, and the problem such as the motor internal wear seriously generates heat has been solved in the static pressure balance design, can make the motor work under the high-speed high-load condition of high pressure, has obviously promoted hoist operating efficiency, makes the tilt cylinder motor can extensively use on hoist.

The present invention will be described in more detail with reference to the accompanying drawings and examples.

Drawings

The contents of the description and the references in the drawings are briefly described as follows:

fig. 1 is a cross-sectional view of a tilt cylinder motor of the present invention;

fig. 2 is a top view of the tilt cylinder motor of the present invention;

FIG. 3 is a hydraulic schematic diagram of the tilt cylinder motor of the present invention;

fig. 4 is a partial cross-sectional view of the tilt cylinder of the present invention;

labeled as: 1. an oil through disc; 2.1, a first countersunk screw; 2.2, a second countersunk screw; 3. a cross shaft; 4. a rear cover; 5.1, a first ball bearing; 5.2, a second ball bearing; 6. a cylinder body; 6.1, a first oil through hole; 6.2, a second oil through hole; 7. a crankshaft; 8. a plunger body; 9. a front cover; 10. a shuttle valve; 11. a balancing valve; 12. a static pressure balancing tank; 13. a hoisting brake; 14. a tilt cylinder motor; 15. a three-position two-way reversing valve;

Detailed Description

The following description of the embodiments of the present invention, with reference to the accompanying drawings, will be made in further detail to explain, for example, the shapes and structures of the components, the mutual positions and connection relationships among the components, the functions and working principles of the components, the manufacturing process, and the operation and use method of the components, so as to help those skilled in the art to understand the concept and technical solutions of the present invention more completely, accurately and deeply.

Fig. 1 is a cross-sectional view of a tilt cylinder motor of the present invention; fig. 2 is a top view of the tilt cylinder motor of the present invention; fig. 4 is a partial cross-sectional view of the tilt cylinder of the present invention; as shown in fig. 1, 2 and 3, a tilt cylinder motor 14 suitable for hoisting a crane comprises a front cover 9 and a rear cover 4, the front cover 9 is fixedly connected with the rear cover 4, the front cover 9 and the rear cover 4 are matched to form a motor shell, an oil through disc 1 is arranged on the rear cover 4, the oil through disc 1 is fixedly connected with the rear cover 4, a cross shaft 3 is arranged between the oil through disc 1 and the rear cover 4, a transmission part is arranged between the front cover 9 and the rear cover 4, a control system of the transmission part adopts a hydraulic control system, the transmission part comprises a cylinder body 6, a crankshaft 7, a first roller bearing 5.1 and a second roller bearing 5.2, the first roller bearing 5.1 and the second roller bearing 5.2 are respectively arranged at two sides of the crankshaft 7, wherein the first roller bearing 5.1 is fixedly connected with the front cover 9, the second roller bearing 5.2 is fixedly connected with the rear cover 4, the crankshaft 7 is fixedly arranged on the cylinder body 6, and the cylinder body 6 is movably connected with the front cover 9 and the

rear cover

4, 6 both sides of cylinder body are equipped with first oil through hole and second oil through hole respectively, are equipped with plunger body 8 in the cylinder body 6, and fixed connection between plunger body 8 and the cylinder body 6 carries out threaded connection through using first countersunk screw 2.1 between logical food tray 1 and the back lid 4, carries out threaded connection through using second countersunk screw 2.2 between back lid 4 and the protecgulum 9.

FIG. 3 is a hydraulic schematic diagram of the tilt cylinder motor of the present invention; the hydraulic control system shown in fig. 3 includes a balance valve 11, a shuttle valve 10, a three-position two-way directional valve 15 and a hoisting brake 13, an oil inlet P and an oil return port T are provided in the middle of the three-position two-way directional valve 15, a tilt cylinder motor 14 is directly connected to the three-position two-way directional valve 15, one end of the shuttle valve 10 is in one-way inflow, and the other end is in two-way inflow.

When the oil pumping device is used, as shown in a hydraulic principle diagram of fig. 3, a shuttle valve 10 and a balance valve 11 are integrated on an oil passing disc 1 of a tilt cylinder motor 14, when a reversing valve moves rightwards, an oil inlet at a port B of the tilt cylinder motor 14 supplies oil to a hoisting brake 13 through the shuttle valve 10 to open the hoisting brake 13, the tilt cylinder motor 14 rotates forwards to drive a hoisting heavy object, when a three-position two-way reversing valve 15 moves to a middle position, the tilt cylinder motor 14 stops rotating, the hoisting brake 13 locks the tilt cylinder motor 14 under the action of an internal spring, and the heavy object is prevented from falling under the action of self gravity to drive the tilt cylinder motor 14 to rotate; when the three-position two-way reversing valve 15 moves leftwards, oil from an oil inlet A of the swing cylinder motor 14 is supplied to the winch brake 13 through the shuttle valve 10 to open the winch brake 13, the swing cylinder motor 14 drives the winch to lower a heavy object in a reverse rotation mode, the balance valve 11 starts to work at the moment to provide stable back pressure for an oil path, so that the falling is more stable, when the three-position two-way reversing valve 15 moves to the middle position, the swing cylinder motor 14 stops rotating, the winch brake 13 locks the swing cylinder motor 14 under the action of an internal spring, at the moment, the balance valve 11 can eliminate the inertia of the falling heavy object, and the impact force borne by the winch brake 13 is reduced.

The present invention has been described above with reference to the accompanying drawings, and it is obvious that the present invention is not limited by the above-mentioned manner, and various insubstantial improvements can be made without modification to the method and technical solution of the present invention, or the present invention can be directly applied to other occasions without modification, all within the scope of the present invention.

Claims

1. The utility model provides a tilt cylinder motor suitable for hoist, includes protecgulum and hou gai, fixed connection between protecgulum and the back lid, the protecgulum constitutes the casing of motor with the cooperation of back lid, its characterized in that: the oil-feeding device is characterized in that an oil feeding disc is arranged on the rear cover, the oil feeding disc is fixedly connected with the rear cover, a cross shaft is arranged between the oil feeding disc and the rear cover, a transmission part is arranged between the front cover and the rear cover, and a control system of the transmission part adopts a hydraulic control system.

2. The tilt cylinder motor for hoist of crane as claimed in claim 1, wherein the transmission part comprises a cylinder block, a crankshaft, a first roller bearing and a second ball bearing, the first roller bearing and the second ball bearing are respectively disposed at both sides of the crankshaft, wherein the first roller bearing is fixedly connected to the front cover, the second roller bearing is fixedly connected to the rear cover, the crankshaft is fixedly disposed on the cylinder block, and the cylinder block is movably connected to the front cover and the rear cover.

3. The tilt cylinder motor for hoist of crane according to claim 2, wherein the cylinder body is provided at both sides thereof with a first oil through hole and a second oil through hole, respectively, and the plunger body is provided in the cylinder body and fixedly connected to the cylinder body.

4. The tilt cylinder motor for hoist of crane as claimed in claim 1, wherein the hydraulic control system comprises a balance valve, a shuttle valve, a three-position two-way directional control valve and a hoist brake, the three-position two-way directional control valve has an oil inlet P and an oil return T at its middle position, the tilt cylinder motor is directly connected to the three-position two-way directional control valve, one end of the shuttle valve is one-way inflow, and the other end is two-way inflow.

5. The tilt cylinder motor for hoist of crane according to claim 1, wherein the oil pan is screw-coupled to the rear cover by using a first countersunk screw, and the rear cover is screw-coupled to the front cover by using a second countersunk screw.