Electric control rotary joint assembly with overflow function

Abstract

The utility model relates to a hydraulic oil way assembly, in particular to an electric control rotary joint assembly with overflow, which comprises an oil way block and a rotary joint rotationally arranged on the oil way block, the oil way block is provided with oil ports a1, b1, c1, d1, a2, b2, c2 and d2, a first oil port, a first auxiliary oil port, a second oil port, a second auxiliary oil port, an overflow valve and a throttle valve, and the rotary joint is provided with a front oil port and a rear oil port; according to the utility model, the leakage of hydraulic oil can be reduced, the service life of the device is prolonged, and the use efficiency of the device is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to hydraulic oil circuit assembly, concretely relates to a take overflow's electric control rotary joint assembly. BACKGROUND

[0002] The hydraulic rotary assembly has important application in engineering machinery, and the internal oil pressure depends on the pressure borne by the machinery, in the actual operation process, engineering machinery often appears the use scene of overloading, which makes the oil circuit in the rotary assembly often appear the condition that oil body extravasates, makes the outer surface of the part full of oil dirt, in combination with the harsh use environment of engineering machinery, causes the large amount of sand and gravel and other foreign matters to adhere to the part surface, influences the normal use of the device

[0003] Therefore, at present, a novel rotary joint assembly is urgently needed, which can reduce the condition that hydraulic oil body extravasates, prolong the service life of the device and improve the use efficiency of the device. UTILITY MODEL CONTENT

[0004] In order to solve the above technical problems, the utility model provides a take overflow's electric control rotary joint assembly, which can reduce the condition that hydraulic oil body extravasates, prolong the service life of the device and improve the use efficiency of the device.

[0005] The utility model adopts the following technical scheme:

[0006] A take overflow's electric control rotary joint assembly, including oil circuit block and the rotary joint that rotates on the oil circuit block, oil circuit block is equipped with oil port a1, b1, c1, d1, a2, b2, c2, d2, first oil port, first vice oil port, second oil port, second vice oil port, overflow valve and throttle valve, and is equipped with front oil port and rear oil port on the rotary joint, first oil port is communicated with a2 and overflow valve, and overflow valve is communicated with a1, b1 is communicated with rear oil port, c1 is communicated with front oil port, d1 is communicated with overflow valve and second oil port, and overflow valve is communicated with the cavity in the rotary joint, b2 is communicated with first vice oil port, c2 is communicated with second vice oil port, d2 is communicated with throttle valve, and throttle valve is communicated with second oil port.

[0007] Further, the overflow valve is a pilot operated overflow valve, and the throttle valve is an adjustable throttle valve.

[0008] Further, in order to improve the convenience of device installation, the oil circuit block is a square structure, and four mounting holes for mounting and fixing are symmetrically arranged on four side edges of the oil circuit block.

[0009] Preferably, four first fixing holes for fixing external devices are symmetrically arranged on the periphery of a1, b1, c1 and d1 of the oil circuit block, and four second fixing holes for fixing external devices are symmetrically arranged on the periphery of a2, b2, c2 and d2 of the oil circuit block.

[0010] From the above description of the structure of the utility model, compared with the prior art, the utility model has the following advantages: through the design of the oil passage inside the oil passage block, combined with the overflow valve and the throttle valve, if excessive load operation occurs and oil seepage occurs, the hydraulic oil seeps into the interior of the rotary joint, avoiding the seepage of the oil body to the outside of the device, avoiding the attachment of foreign matter to the outside of the device due to the external seepage of the oil body, prolonging the service life of the device and ensuring the use efficiency of the device. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 For the utility model three-dimensional schematic Figure 1 ;

[0012] Figure 2 For the utility model three-dimensional schematic Figure 2 ;

[0013] Figure 3 For the utility model three-dimensional schematic Figure 3 ;

[0014] Figure 4 For the utility model three-dimensional schematic Figure 4 ;

[0015] The meanings of the marks in the drawings are as follows:

[0016] The chain belt 1, the pull head 2, the pull head body 21, the intermediate piece 22, the pull tab 23, the first pull tab block 231, the second pull tab block 232, the first clamping mechanism 3, the clamping block 4, the clamping hole 41, the second clamping mechanism 5, the clamping body 6, the clamping groove 7, and the limiting block 8. DETAILED DESCRIPTION

[0017] The specific embodiments of the utility model will be described below with reference to the drawings.

[0018] Referring to Figures 1 to 4 , an electric control rotary joint assembly with overflow, comprising an oil passage block 1 and a rotary joint 2 rotatably arranged on the oil passage block 1, the oil passage block 1 is provided with oil ports a1, b1, c1, d1, a2, b2, c2, d2, a first oil port 3, a first auxiliary oil port 4, a second oil port 5, a second auxiliary oil port 6, an overflow valve 7 and a throttle valve 8, the rotary joint 2 is provided with a front oil port 21 and a rear oil port 22; the first oil port 3 is in communication with a2 and the overflow valve 7, the overflow valve 7 is in communication with a1; b1 is in communication with the rear oil port 22, c1 is in communication with the front oil port 21, d1 is in communication with the overflow valve 7 and the second oil port 5, the overflow valve 7 is in communication with the cavity in the rotary joint 2; b2 is in communication with the first auxiliary oil port 4, c2 is in communication with the second auxiliary oil port 6, d2 is in communication with the throttle valve 8, and the throttle valve 8 is in communication with the second oil port 5.

[0019] Referring to Figures 1 to 4, the overflow valve 7 is a pilot overflow valve, and the throttle valve 8 is an adjustable throttle valve; meanwhile, in order to improve the convenience of installation of the device, the oil passage block 1 is a square structure, and four mounting holes 11 for mounting and fixing are symmetrically arranged on four side edges of the oil passage block 1.

[0020] Referring to Figure 1 In order to improve the quickness of installation of the external device, four first fixing holes 12 for fixing the external device are symmetrically arranged on the periphery of the oil passage block 1 at a1, b1, c1 and d1, and four second fixing holes 13 for fixing the external device are symmetrically arranged on the periphery of the oil passage block 1 at a2, b2, c2 and d2.

[0021] Working principle: the utility model discloses a overflow valve 7 is arranged, and the overflow valve 7 is communicated with the swivel joint 2, and is combined with the design of each oil passage simultaneously, so that once the overloading condition appears, the oil passage pressure relief is to the inside of swivel joint 2, simultaneously, through the communication of swivel joint 2 and external device, make the hydraulic oil carry out internal recycling, solve the existing swivel joint assembly, once appear the technical problem of oil leakage, hydraulic oil leaks to the outside of device, thereby prolong the service life of device, improve device use efficiency.

[0022] The above is only the specific embodiment of the utility model, but the design concept of the utility model is not limited to this, and any non-essential change of the utility model by using the concept should belong to the act of infringing the protection scope of the utility model.

Claims

1. An electrically controlled rotary union assembly with spillage, comprising an oil passage block and a rotary union rotatably disposed on the oil passage block, characterized by: The oil passage block is provided with oil ports a1, b1, c1, d1, a2, b2, c2, d2, a first oil port, a first auxiliary oil port, a second oil port, a second auxiliary oil port, an overflow valve and a throttle valve, and the rotary joint is provided with a front oil port and a rear oil port; the first oil port is in communication with a2 and the overflow valve, the overflow valve is in communication with a1, b1 is in communication with the rear oil port, c1 is in communication with the front oil port, d1 is in communication with the overflow valve and the second oil port, the overflow valve is in communication with a cavity in the rotary joint; b2 is in communication with the first auxiliary oil port, c2 is in communication with the second auxiliary oil port, d2 is in communication with the throttle valve, and the throttle valve is in communication with the second oil port.

2. An electrically controlled rotary union assembly with overflow according to claim 1, characterized in that: The overflow valve is a pilot-operated overflow valve.

3. An electrically controlled rotary union assembly with overflow according to claim 1 or 2, characterized in that: The throttle valve is an adjustable throttle valve.

4. An electrically controlled rotary union assembly with overflow according to claim 1 or 2, characterized in that: The oil passage block is a square structure, and four mounting holes for mounting and fixing are symmetrically arranged on the four sides of the oil passage block.

5. An electrically controlled rotary union assembly with overflow according to claim 1 or 2, characterized in that: The oil passage block is symmetrically provided with four first fixing holes for fixing external devices around the periphery of a1, b1, c1 and d1.

6. An electrically controlled rotary union assembly with overflow according to claim 1 or 2, characterized in that: The oil passage block is symmetrically provided with four second fixing holes for fixing external devices around the periphery of a2, b2, c2 and d2.

Images