CN221033406U - Hydraulic valve group for controlling grab bucket - Google Patents

Abstract

The application relates to the technical field of hydraulic devices, in particular to a hydraulic valve group for controlling a grab bucket, which comprises a valve group, a logic valve, a pressure measuring joint, an overflow valve, an electromagnetic valve and a plug, wherein an electromagnetic valve action rod is fixedly arranged on the electromagnetic valve; the application has the advantages of simple working principle and low failure rate by arranging the logic valve, the signal is transmitted to the electromagnetic valve when the grab bucket lifts the goods to the unloading point by arranging the electromagnetic valve, the logic valve is pushed by the pressure of the rod cavity of the oil cylinder, the unloading can be realized, the operation is simple, and the working efficiency is high by arranging the cooperation between all the components.

Description

Hydraulic valve group for controlling grab bucket

Technical Field

The application relates to the technical field of hydraulic devices, in particular to a hydraulic valve group for controlling a grab bucket.

Background

Hydraulic valves for fluid direction control or flow control in hydraulic systems are widely used and are of many kinds, and it is well known to use hydraulic systems for moving or lifting goods.

In the patent publication C N200949012Y, a hydraulic transmission for controlling a single rope grab is disclosed, characterized in that: three groups of hydraulic cylinders are arranged in the hydraulic transmission device, two groups of hydraulic cylinders are main cylinders, one group of hydraulic cylinders is a pullback cylinder, the pullback cylinder is connected with an energy accumulator, and the two groups of hydraulic cylinders are connected with the oil tank after being connected in parallel. When the grab bucket is used, two sides of the sliding seat of the grab bucket are fixedly connected with the tops of the piston rods of the two groups of main cylinders respectively, the bottoms of the two groups of main cylinders are fixedly connected with the lower bolster respectively, and the sliding seat is provided with a pulley block.

The working efficiency of the existing hydraulic grab valve sets is lower.

Therefore, the hydraulic valve group for controlling the grab bucket is designed to assist in completing work, and the problems are effectively solved.

Disclosure of utility model

Aiming at the problem that the working efficiency of the existing hydraulic grab valve sets in the prior art is low, the hydraulic valve set for controlling the grab is designed.

The technical scheme adopted for solving the technical problems is as follows: a hydraulic valve group for controlling grab bucket, including valves, logic valve, pressure measurement joint, overflow valve, solenoid valve and end cap, the solenoid valve is fixed to be provided with the solenoid valve action pole, and the solenoid valve action ring has been cup jointed to the one end of solenoid valve action pole, and movable groove has been seted up to the one end cross-section of solenoid valve action ring, and the solenoid valve action piece has been cup jointed at the middle part of solenoid valve action pole, and one side of solenoid valve action piece is provided with the working face, fixedly connected with solenoid valve interface on the working face, and the other end of solenoid valve action pole has cup jointed different solenoid valve auxiliary ring.

Preferably, the overflow valve is fixedly provided with an overflow action rod, the outside of the overflow action rod is of a spiral structure, one end of the overflow action rod is provided with an overflow auxiliary hole, the other end of the overflow action rod is fixedly connected with an overflow first action block, one side of the overflow first action block is fixedly connected with an overflow second action block, one side of the overflow second action block is fixedly connected with an overflow auxiliary block, and the outer periphery side of the overflow auxiliary block is of a threaded structure.

Preferably, one end of the overflow auxiliary block, which is provided with a threaded structure at the peripheral side, is fixedly connected with an overflow action column, a plurality of overflow auxiliary grooves are formed in the peripheral side surface of the overflow action column, the overflow auxiliary grooves penetrate through the overflow action column, and an auxiliary rod is fixedly connected to one side of the overflow action column.

Preferably, the pressure measuring joint is fixedly provided with a pressure measuring action rod, one end section of the pressure measuring action rod is fixedly connected with a connecting column, the pressure measuring joint is fixedly provided with a pressure measuring first connecting sheet, two ends of the pressure measuring first connecting sheet are respectively provided with a first fixing groove and a first connecting groove, and the connecting column is spliced in the first fixing groove.

Preferably, the other end cross-section fixedly connected with pressure measurement action piece of pressure measurement action bar, the one end periphery side that pressure measurement action piece was connected to the pressure measurement action bar has cup jointed pressure measurement first action ring and pressure measurement second action ring, be provided with pressure measurement second connection piece between pressure measurement first action ring and the pressure measurement second action ring, the second fixed slot has been seted up to the one end of pressure measurement second connection piece, and the second fixed slot cup joints the pressure measurement action bar, the second spread groove has been seted up to the other end of pressure measurement second connection piece, the pressure measurement connects fixedly to be provided with the pressure measurement chain, and the pressure measurement chain both ends are pegged graft respectively in the first spread groove of pressure measurement first connection piece and the second spread groove of pressure measurement second connection piece.

Preferably, the logic valve is fixedly provided with a logic action rod, the outer peripheral side of the middle part of the logic action rod is of a threaded structure, one end of the logic action rod is provided with a logic action groove, and the outer peripheral side of the end of the logic action rod provided with the logic action groove is provided with a plurality of logic action holes.

Preferably, the valve bank is fixedly provided with an action block, the upper end of the action block is provided with a logic valve plug-in groove, the upper side of the front end of the action block is provided with a pressure measuring connector plug-in groove, the lower end of the pressure measuring connector plug-in groove is provided with an electromagnetic valve plug-in groove, the lower end of the electromagnetic valve plug-in groove is provided with an overflow valve plug-in groove, and the lower end of the overflow valve plug-in groove is provided with a plug-in groove.

Preferably, the plug is fixedly provided with a plug acting block, and the plug acting block is fixedly connected with a plug acting column.

Preferably, the logic valve, the pressure measuring connector, the overflow valve, the electromagnetic valve and the plug are respectively inserted into a logic valve inserting groove, a pressure measuring connector inserting groove, an overflow valve inserting groove, an electromagnetic valve inserting groove and a plug inserting groove in the valve group, and all the components are connected with each other through hydraulic pipes.

The utility model has the beneficial effects that:

According to the hydraulic valve group for controlling the grab bucket, the logic valve is arranged, the logic valve is pushed under negative pressure, hydraulic oil enters the rod cavity from the oil tank, so that the grab bucket is closed to move upwards to reach the unloading point, and the hydraulic oil in the rod cavity is returned to the oil tank.

According to the hydraulic valve bank for controlling the grab bucket, the electromagnetic valve is arranged, when the grab bucket lifts cargoes to the unloading point, signals are transmitted to the electromagnetic valve, the electromagnetic valve is opened, the logic valve is pushed by the pressure of the rod cavity of the oil cylinder, unloading is achieved, and the hydraulic valve bank is simple in operation and convenient to use.

(3) According to the hydraulic valve group for controlling the grab bucket, various components are arranged to cooperate with each other, so that the working efficiency is high, and the application range is wider.

Drawings

The utility model will be further described with reference to the drawings and examples.

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a schematic diagram of a valve block according to the present utility model;

FIG. 3 is a schematic diagram of a logic valve structure according to the present utility model;

FIG. 4 is a side view of the pressure fitting of the present utility model;

FIG. 5 is a schematic view of the pressure tap of the present utility model;

FIG. 6 is a schematic diagram of the relief valve structure of the present utility model;

FIG. 7 is a schematic diagram of the solenoid valve of the present utility model;

Fig. 8 is a schematic diagram of the plug structure of the present utility model.

In the figure: 1. a valve group; 11. an action block; 12. a logic valve plug-in slot; 13. a pressure measuring joint plugging groove; 14. an overflow valve plug-in groove; 15. an electromagnetic valve inserting groove; 16. plug inserting grooves; 2. a logic valve; 21. a logic action lever; 211. a logic action groove; 212. a logic action hole; 3. a pressure measuring joint; 31. a pressure measuring action bar; 32. a connecting column; 33. a pressure measuring first connecting piece; 331. a first fixing groove; 332. a first connection groove; 34. a first active ring; 35. a second connecting piece for measuring pressure; 352. a second connecting groove; 35. measuring pressure of the second action ring; 37. a pressure measuring action block; 38. a pressure measuring chain; 4. an overflow valve; 41. an overflow action bar; 411. an overflow auxiliary hole; 42. overflowing the first action block; 43. overflowing the second action block; 44. an overflow auxiliary block; 45. an overflow action column; 451. an overflow auxiliary groove; 46. an auxiliary lever; 5. an electromagnetic valve; 51. an electromagnetic valve action rod; 511. a movable groove; 52. an electromagnetic valve action ring; 53. an electromagnetic valve action block; 531. an action surface; 532. an electromagnetic valve interface; 6. a plug; 61. a plug action block; 62. the plug acts as a column.

Detailed Description

The utility model is further described in connection with the following detailed description in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the utility model easy to understand.

Examples

Referring to fig. 1 and 5, the hydraulic valve group for controlling a grab bucket according to the present utility model includes a valve group 1, a logic valve 2, a pressure measuring joint 3, an overflow valve 4, an electromagnetic valve 5 and a plug 6, wherein the electromagnetic valve 5 is fixedly provided with an electromagnetic valve action rod 51, one end of the electromagnetic valve action rod 51 is sleeved with an electromagnetic valve action ring 52, a movable groove 511 is formed in a cross section of one end of the electromagnetic valve action ring 52, the middle part of the electromagnetic valve action rod 51 is sleeved with an electromagnetic valve action block 53, one side of the electromagnetic valve action block 53 is provided with an action surface 531, an electromagnetic valve interface 532 is fixedly connected to the action surface 531, the other end of the electromagnetic valve action rod 51 is sleeved with different electromagnetic valve auxiliary rings, the grab bucket locks a sliding seat and a lower bearing beam through an oil cylinder when the system is in operation, and loads and unloads the grab bucket valve is controlled by the extending and retracting of the oil cylinder, the grab bucket is opened and horizontally placed on the ground in an initial state, the electromagnetic valve is in a closed state, the grab bucket is lifted by using a crane, at the moment, the grab bucket is opened, the grab bucket is lifted to a position where goods are stacked, the grab bucket is put down to cover the goods, the lifting rope is released, the piston rod is completely retracted into the cylinder barrel under the weight of the upper cross beam, the oil cylinder is locked, hydraulic oil in the rodless cavity of the oil cylinder at the moment opens the back pressure one-way valve to return to the oil tank under the weight of the upper cross beam, the oil cylinder has a rod cavity to push the logic valve 2 to open under negative pressure, the hydraulic oil enters the rod cavity from the oil tank, the grab bucket is closed, the lifting rope is required to be pulled, the force of the closing rope is transmitted to the upper cross beam through the locked oil cylinder and then is transmitted to the bucket flap, the grab bucket starts to be closed and starts moving upwards, the closed grab bucket is lifted to a unloading point, the remote controller is started, and a signal is transmitted to the electromagnetic valve 5 of the valve group 1 to be opened, the pressure in the cylinder rod cavity enables the logic valve 2 to be opened, so that hydraulic oil in the rod cavity returns to the oil tank, the rodless cavity opens the back pressure one-way valve to absorb oil under the action of negative pressure, the cylinder piston rod extends out and acts on the cross beam and the bucket valve to enable the grab bucket to be opened for unloading.

Specifically, referring to fig. 6, the overflow valve 4 is fixedly provided with an overflow action rod 41, the outside of the overflow action rod 41 is of a spiral structure, one end of the overflow action rod 41 is provided with an overflow auxiliary hole 411, the other end of the overflow action rod 41 is fixedly connected with an overflow first action block 42, one side of the overflow first action block 42 is fixedly connected with an overflow second action block 43, one side of the overflow second action block 43 is fixedly connected with an overflow auxiliary block 44, and the outer circumferential side of the overflow auxiliary block 44 is of a threaded structure.

In the embodiment, the overflow valve 4 is inserted into the overflow valve insertion groove 14 of the valve group 1, so that the system pressure is stabilized and the system is protected when the system works.

In one embodiment, the relief valve 4 protects the system.

Specifically, referring to fig. 6, one end of the overflow auxiliary block 44 having a screw structure on the outer circumferential side is fixedly connected with an overflow action column 45, a plurality of overflow auxiliary grooves 451 are provided on the outer circumferential side of the overflow action column 45, the overflow auxiliary grooves 451 penetrate through the overflow action column 45, and an auxiliary rod 46 is fixedly connected to one side of the overflow action column 45.

In this embodiment, the overflow auxiliary grooves 451 are provided on the outer peripheral side of the overflow action column 45, so that the orifice action head is kept constant during the outflow process, and the outflow flow rate and flow rate do not change with time.

In one embodiment, the outflow flow rate and the flow rate are made constant over time.

Specifically, referring to fig. 5, the pressure measuring joint 3 is fixedly provided with a pressure measuring action rod 31, a connecting column 32 is fixedly connected to a section of one end of the pressure measuring action rod 31, the pressure measuring joint 3 is fixedly provided with a pressure measuring first connecting piece 33, two ends of the pressure measuring first connecting piece 33 are respectively provided with a first fixing groove 331 and a first connecting groove 332, and the connecting column 32 is inserted into the first fixing groove 331.

In the embodiment, the pressure measuring connector 3 is inserted into the pressure measuring connector inserting groove 13 of the valve group 1, and when the system works, the pressure of the system is detected.

In one embodiment, the pressure tap 3 may detect system pressure.

Specifically, referring to fig. 5, the other end section of the pressure measuring action rod 31 is fixedly connected with a pressure measuring action block 37, one end peripheral side of the pressure measuring action rod 31 connected with the pressure measuring action block 37 is sleeved with a pressure measuring first action ring 34 and a pressure measuring second action ring 36, a pressure measuring second connecting piece 35 is arranged between the pressure measuring first action ring 34 and the pressure measuring second action ring 36, one end of the pressure measuring second connecting piece 35 is provided with a second fixing groove, the second fixing groove is sleeved with the pressure measuring action rod 31, the other end of the pressure measuring second connecting piece 35 is provided with a second connecting groove 352, the pressure measuring joint 3 is fixedly provided with a pressure measuring chain 38, and two ends of the pressure measuring chain 38 are respectively spliced in the first connecting groove 332 of the pressure measuring first connecting piece 33 and the second connecting groove 352 of the pressure measuring second connecting piece 35.

In this embodiment, the pressure measuring joint 3 is connected completely.

In one of the embodiments, the pressure tap 3 is functional in the system.

Specifically, referring to fig. 3 and 4, the logic valve 2 is fixedly provided with a logic action rod 21, the outer peripheral side of the middle part of the logic action rod 21 is in a threaded structure, a logic action groove 211 is formed at one end of the logic action rod 21, and a plurality of logic action holes 212 are formed in the outer peripheral side surface of one end of the logic action rod 21 where the logic action groove 211 is formed.

In the embodiment, the logic valve 2 is inserted into the logic valve insertion groove 13 of the valve group 1, and when the system works, the hydraulic oil can enter the rod cavity from the oil tank by pushing the logic valve 2 under the negative pressure of the rod cavity of the oil cylinder.

In one embodiment, the logic valve 2 is a hydraulic oil flow direction control valve.

Specifically, referring to fig. 2, the valve block 1 is fixedly provided with an action block 11, a logic valve plugging groove 12 is formed at the upper end of the action block 11, a pressure measuring connector plugging groove 13 is formed at the upper side of the front end of the action block 11, an electromagnetic valve plugging groove 15 is formed at the lower end of the pressure measuring connector plugging groove 13, an overflow valve plugging groove 14 is formed at the lower end of the electromagnetic valve plugging groove 15, and a plug plugging groove 16 is formed at the lower end of the overflow valve plugging groove 14.

In this embodiment, each component is inserted into a corresponding slot as required, and the device can function in the system.

In one embodiment, the connection carrier of the components.

Specifically, referring to fig. 8, the plug 6 is fixedly provided with a plug acting block 61, and the plug acting block 61 is fixedly connected with a plug acting column 62.

In this embodiment, the plug 6 is inserted into the plug insertion groove 16 of the valve group 1, and the plug 6 plugs an unnecessary port in the pipeline to perform a sealing function.

In one embodiment, the plug 6 may seal the device.

Specifically, referring to fig. 1, a logic valve 2, a pressure measuring joint 3, an overflow valve 4, a solenoid valve 5 and a plug 6 are respectively inserted into a logic valve insertion groove 12, a pressure measuring joint insertion groove 13, an overflow valve insertion groove 14, a solenoid valve insertion groove 15 and a plug insertion groove 16 in a valve group 1, and all the components are connected with each other through hydraulic pipes.

In this embodiment, after the plugging of the components is completed, the components are connected to each other through the acting pipes and cooperate in the system.

In one embodiment, the components work cooperatively to function.

The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the foregoing examples, and that the foregoing description and description are merely illustrative of the principles of this utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims (9)

1. The utility model provides a hydraulic pressure valves for controlling grab bucket, includes valves (1), logic valve (2), pressure measurement joint (3), overflow valve (4), solenoid valve (5) and end cap (6), its characterized in that: solenoid valve (5) are fixed be provided with solenoid valve action pole (51), solenoid valve action ring (52) have been cup jointed to the one end of solenoid valve action pole (51), movable groove (511) have been seted up in the one end cross-section of solenoid valve action ring (52), solenoid valve action piece (53) have been cup jointed at the middle part of solenoid valve action pole (51), one side of solenoid valve action piece (53) is provided with action face (531), fixedly connected with solenoid valve interface (532) on action face (531), the other end of solenoid valve action pole (51) has cup jointed different solenoid valve auxiliary ring.

2. The hydraulic valve set for controlling a grapple of claim 1, wherein: the overflow valve is characterized in that an overflow action rod (41) is fixedly arranged on the overflow valve (4), the outside of the overflow action rod (41) is of a spiral structure, an overflow auxiliary hole (411) is formed in one end of the overflow action rod (41), an overflow first action block (42) is fixedly connected to the other end of the overflow action rod (41), an overflow second action block (43) is fixedly connected to one side of the overflow first action block (42), an overflow auxiliary block (44) is fixedly connected to one side of the overflow second action block (43), and the outer periphery side of the overflow auxiliary block (44) is of a threaded structure.

3. The hydraulic valve set for controlling a grapple of claim 2, wherein: the overflow auxiliary block is characterized in that one end of the overflow auxiliary block (44) with a threaded structure is fixedly connected with an overflow action column (45), a plurality of overflow auxiliary grooves (451) are formed in the outer circumferential side face of the overflow action column (45), the overflow auxiliary grooves (451) penetrate through the overflow action column (45), and an auxiliary rod (46) is fixedly connected to one side of the overflow action column (45).

4. The hydraulic valve set for controlling a grapple of claim 1, wherein: the pressure measuring joint (3) is fixedly provided with a pressure measuring action rod (31), one end section fixedly connected with spliced pole (32) of pressure measuring action rod (31), pressure measuring joint (3) is fixedly provided with pressure measuring first connecting piece (33), first fixed slot (331) and first connecting slot (332) have been seted up respectively at the both ends of pressure measuring first connecting piece (33), spliced pole (32) are pegged graft in first fixed slot (331).

5. The hydraulic valve set for controlling a grapple of claim 4, wherein: the utility model discloses a pressure measurement action bar, including pressure measurement action bar (31), pressure measurement action bar (31) are connected one end periphery side of pressure measurement action bar (37) has cup jointed pressure measurement first action ring (34) and pressure measurement second action ring (36), be provided with pressure measurement second connection piece (35) between pressure measurement first action ring (34) and pressure measurement second action ring (36), the second fixed slot has been seted up to the one end of pressure measurement second connection piece (35), and the second fixed slot cup joints pressure measurement action bar (31), second connecting slot (352) have been seted up to the other end of pressure measurement second connection piece (35), pressure measurement joint (3) are fixed and are provided with pressure measurement chain (38), and pressure measurement chain (38) both ends are pegged graft respectively in pressure measurement first connecting slot (332) of pressure measurement first connection piece (33) and pressure measurement second connection piece (35) second connecting slot (352).

6. The hydraulic valve set for controlling a grapple of claim 1, wherein: the logic valve (2) is fixedly provided with a logic action rod (21), the periphery side of the middle part of the logic action rod (21) is of a threaded structure, one end of the logic action rod (21) is provided with a logic action groove (211), and one end periphery side surface of the logic action rod (21) provided with the logic action groove (211) is provided with a plurality of logic action holes (212).

7. The hydraulic valve set for controlling a grapple of claim 1, wherein: the valve bank (1) is fixedly provided with an action block (11), a logic valve inserting groove (12) is formed in the upper end of the action block (11), a pressure measuring connector inserting groove (13) is formed in the upper side of the front end of the action block (11), an electromagnetic valve inserting groove (15) is formed in the lower end of the pressure measuring connector inserting groove (13), an overflow valve inserting groove (14) is formed in the lower end of the electromagnetic valve inserting groove (15), and a plug inserting groove (16) is formed in the lower end of the overflow valve inserting groove (14).

8. The hydraulic valve set for controlling a grapple of claim 1, wherein: the plug (6) is fixedly provided with a plug acting block (61), and the plug acting block (61) is fixedly connected with a plug acting column (62).

9. The hydraulic valve set for controlling a grapple of claim 1, wherein: the logic valve (2), the pressure measuring connector (3), the overflow valve (4), the electromagnetic valve (5) and the plug (6) are respectively inserted into a logic valve inserting groove (12), a pressure measuring connector inserting groove (13), an overflow valve inserting groove (14), an electromagnetic valve inserting groove (15) and a plug inserting groove (16) in the valve bank (1), and all the components are connected with each other through hydraulic pipes.