JPH09206633A - Nozzle device and jet device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enhance the washing or peeling capacity of a portable water jet device by the jet of high pressure water from a revolving nozzle. SOLUTION: A plurality of revolving nozzles 22 are arranged in the axial direction of a pipe body 32 to be attached to the front of a nozzle holder 24 and integrated with the pipe body 32 and a columnar member 34 in the axial direction of the pipe body 32. The columnar member 34 is supported by a drive case 26 so as to be relatively and freely displaced in the axial direction by slide balls 42. A rotary member 56 has a peripheral groove 58 extending while bent in the axial direction provided to the peripheral part thereof and is rotationally driven by an air motor. A roller case 62 is supported in a relatively freely rotatable manner by the columnar member 34 through an annular roller row 60 and integrated with the columnar member 34 in the axial direction and a protruding rod 64 is fitted in the peripheral groove 58. The revolving nozzles 22 jet high pressure water while it is reciprocally moved in the axial direction by the entrainment of the roller case 62 by the peripheral groove 58 accompanied by the rotation of the rotary member 56.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a nozzle device used for cleaning work, peeling work, and the like and an injection device equipped with the same, and more particularly, to improving cleaning ability and peeling ability by a jet from a nozzle. The present invention relates to a nozzle device and an ejection device.

[0002]

2. Description of the Related Art In a nozzle device used for cleaning and peeling by injecting high-pressure water, a jet flow is made into a conical side surface or a jet flow is swirled (eg, Japanese Utility Model Publication No. 3-23314). We are trying to improve.

[0003]

In the conventional nozzle device, the nozzle only moves in a direction substantially at right angles to the jet direction, and there is a limit to further improvement in cleaning and peeling ability.

An object of the present invention is to provide a nozzle device capable of improving the cleaning and peeling ability by a jet flow, and an injection device equipped with the nozzle device. Another object of the present invention is to provide an injection device capable of guaranteeing nozzle movement for improving cleaning and peeling ability by a jet flow.

[0005]

In the nozzle device of the present invention, the nozzle (22) is reciprocated substantially in the direction of the jet flow from the nozzle (22).

In this nozzle device, the nozzle (22) reciprocates substantially in the jet direction from the nozzle (22). As a result, the jet velocity changes with respect to the object, and the jet collides with the object while changing the impact force. In this way, by vibrating the impact force of the jet flow that collides with the target object, cleaning the target object,
The ability of peeling and chipping can be enhanced.

The nozzle device of the present invention has the following (a)-
(C). (A) Nozzle (22) for injecting liquid (b) Nozzle equipment member equipped with nozzle (22) at the tip
(24,32,34) (c) Nozzle-equipped member almost in the jet direction from the nozzle (22)
Reciprocating means (56,58,62,70) to reciprocate (24,32,34)

In this nozzle device, the reciprocating means (56, 58, 6
2, 70) reciprocates the nozzle-equipped member (24, 32, 34) substantially in the direction of the jet from the nozzle (22). The nozzle (22) reciprocates almost in the jet direction along with the reciprocating movement of the nozzle equipment members (24, 32, 34), so the jet velocity from the nozzle (22) fluctuates with respect to the object, and the jet flow Collides with an object while varying the impact force. In this way, the target object is made to collide with the jet flow with vibrating impact force, so that the ability of the jet to clean, peel, and chip the target object is improved.

In the present specification, the term “substantially the jet flow direction” is used not only the “jet flow direction”, but not only when the reciprocating direction of the nozzle (22) exactly coincides with the jet flow direction. This is to include the case where it is slightly inclined with respect to the jet flow direction. For example, multiple nozzles (22)
Multiple nozzles (22) without aligning the directions of
May be arranged in an annular shape with its direction slightly outward, and the annular jet flow as a whole may be expanded toward the end to widen the impingement surface weir of the jet flow to the target object. Although the reciprocating direction of the nozzle (22) is the direction of the entire jet, it does not exactly match the direction of each jet.

The nozzle device of the present invention has the following (a)-
It has the element of (f). (A) Nozzle (22) for injecting liquid (b) Nozzle equipment member (24, 32, 34) (c) in which the nozzle (22) is equipped at the tip end with the direction of the jet from the nozzle (22) as the axial direction. ) Reciprocating support member (12, 26) for movably supporting the nozzle equipment member (24, 32, 34) in its axial direction (d) Rotatably supported by the reciprocating support member (12, 26) (46) Rotating member driven by (46) (e) Groove (58) circling around the periphery of the rotating member (56) while being displaced in the axial direction of the nozzle mounting member (24, 32, 34). (F) A fitting (62, 70) provided integrally with the nozzle equipment member (24, 32, 34) in the axial direction of the nozzle equipment member (24, 32, 34) and movably fitted in the groove (58).

In this nozzle device, the driving means (46) rotationally drives the rotating member (56). The inserts (62, 70) are rotating members.
Along with the rotation of (56), it moves in the groove (58) at the peripheral portion of the rotating member (56) and becomes a reciprocating support member (12, 26) in the axial direction of the nozzle equipment member (24, 32, 34). On the other hand, it reciprocates integrally with the nozzle equipment member (24, 32, 34). The nozzle (22) is connected to the nozzle equipment member (24,3
As the reciprocating motion of (2, 34) reciprocates almost in the jet direction, the jet velocity from the nozzle (22) oscillates. Thus,
Since the target object is made to collide with a jet flow having an oscillating impact force, the capability of cleaning, peeling, and chipping of the target object by the jet flow is improved.

The injection device (10) of the present invention is equipped with any of the nozzle devices described above.

The injection device (10) of the present invention further has the following elements (a) to (d). (A) A connecting pipe member (74) fixed to a reciprocating support member (12, 26) provided with a pressure-feeding liquid supply port (110) for supplying the pressure-feeding liquid on the upstream end side, and (b) a nozzle (22) Connection pipe member that can move freely in the reciprocating direction
(74) A pipe (76) which is disposed in (74) and faces the upstream end side to the pressure-feeding liquid supply port (110) (c) A connecting pipe member (74) and a pipe (in the reciprocating direction of the nozzle (22) 76) Sealing means (88, 90) for permitting relative displacement between the two while extending relative to the nozzle (22) approximately in the reciprocating direction and extending at both ends on the downstream end side of the tubular body (76), respectively. And a connecting hose (78) connected to the nozzle (22)

In this injection device (10), the connection hose (78)
Reciprocates in the reciprocating direction of the nozzle (22) as the nozzle (22) reciprocates, and the tube body (76) is also integrated with the connection hose (78) with respect to the connection tube member (74). It reciprocates in the reciprocating direction of (22). The pressure-feeding liquid at the pressure-feeding liquid supply port (110) is connected to the connecting pipe member (74).
Is supplied to the upstream end side of the pipe, flows into the pipe body (76), and
It is guided to the nozzle (22) through the connection hose (78) and the nozzle
It is injected from (22). Further, the sealing means (88, 90) is a pipe body for the connecting pipe member (74) in the reciprocating direction of the nozzle (22).
While allowing the displacement of (76), the connection pipe member (74) and the pipe body (76) are sealed, and the pipe body (76) is fed from the pressure-feeding liquid supply port (110).
Prevents leakage of the pumped liquid that has entered the outside of the. Due to the relative displacement structure between the connecting pipe member (74) and the pipe body (76), the reciprocating movement of the nozzle (22) can be guaranteed while preventing leakage of the pressure-fed liquid.

The injection device (10) of the present invention includes a connecting pipe member (7
It has a guide (82, 94) which is inserted into 4) and guides the tubular body (76) in the reciprocating direction of the nozzle equipment member (24, 32, 34).

In this injection device (10), the guides (82, 94)
However, while supporting the pipe body (76) with respect to the connection pipe member (74), the pipe body (76) is guided in the reciprocating direction of the nozzle (22). This can prevent uneven wear of the sealing means (88, 90).

In the injection device (10) of the present invention, the connecting pipe member
(74) has a fitting insertion hole (80) having a step (84) on the side of the pressure-feeding liquid supply port (110) which is open to the end opposite to the pressure-feeding liquid supply port (110). In the (80), a first part which is applied to the step part (84) and guides the tube body (76) in the reciprocating direction of the nozzle equipment member (24, 32, 34).
The seal case (8) holding the guide means (82), the sealing means (88, 90) for sealing between the pipe body (76) and the connecting pipe member (74).
6), a second guide (fixed to the connection pipe member (74) at the opening of the fitting insertion hole (80) for guiding the pipe body (76) in the reciprocating direction of the nozzle equipment member (24, 32, 34). 94) and a compression spring member (96) compressed between the first guide (82) and the second guide (94).
Is inserted.

In this injection device (10), the liquid that enters the outside of the pipe body (76) through the pressure feed liquid supply port (110) of the connection pipe member (74) is sealed by the sealing means (88, 88) of the seal case (86). 90) prevents leakage of the connecting pipe member (74) to the outside. First Guide (82)
The second guide (94) is arranged on both sides of the seal case (86) in the axial direction, and guides the pipe body (76) with respect to the connecting pipe member (74) in the reciprocating direction of the nozzle (22). . The pipe body (76) is accurately guided in the reciprocating direction of the nozzle (22) by the first guide (82) and the second guide (94) and is prevented from being displaced in the radial direction, so that the sealing means. Uneven wear of (88,90) can be suppressed.

In the nozzle device of the present invention, the second guide
The (94) is fastened to the connecting pipe member (74) by being screwed into the connecting pipe member (74).

In this nozzle device, the second guide (94)
Is for preventing the first guide (82) and the seal case (86) from coming off from the opening side of the fitting insertion hole (80).
Although it is required to be fastened to 4), it is fastened to the connecting pipe member (74) by being screwed into the fitting insertion hole (80). Therefore, the component for fastening the second guide (94) to the connecting pipe member (74) can be omitted.

[0021]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings. FIG. 8 is a schematic structural diagram of the entire portable injection device 10. The portable injection device 10 is carried by an operator while being carried over, and is used for operations such as cleaning, peeling, and chipping. The portable injection device 10 has a stretched portion 12 that extends linearly in the front-rear direction, and a nozzle drive device 14 and a pressure-feeding hose connection device 16 are attached to the front end portion and the rear end portion of the stretched portion 12, respectively. Both ends of the shoulder strap 18 are hung on the hook portions of the nozzle driving device 14 and the pressure-feeding hose connecting device 16 and passed through the shoulder of the operator. The grip 20 is attached to a position near the rear end of the swaging part 12 and hangs down. Multiple swirl nozzles
The nozzles 22 are attached to the front surface of the nozzle holder 24 in a circumferential arrangement.

FIG. 1 is a detailed structural diagram of the nozzle driving device 14. The drive case 26 includes front portions 2 arranged in order from the front side and fastened to each other by bolts (not shown).
8, middle part 29 and rear part 30 with rear part 3
0 is fixed to the front end of the swaging part 12. The cylindrical body 34 has a cylindrical hole 36 deviated from its center line, and the tube body 32 penetrates the cylindrical body 34 along the center line of the cylindrical hole 36. The pair of roller bearings 38 are separated from each other in the axial direction of the tubular body 32 by cylindrical holes.
It is fitted between the peripheral surface of 36 and the outer periphery of the tubular body 32, and supports the tubular body 32 relative to the columnar body 34 so as to be rotatable relative thereto. A pair of annular seals 40 are disposed on the outer side of the roller bearing 38 in the axial direction of the tubular body 32 and adjacent to the roller bearing 38, and have a cylindrical hole.
A seal is provided between the peripheral surface of 36 and the outer periphery of the tubular body 32.
The pair of slide balls 42 are fitted in annular grooves in the drive case 26 so as to contact the outer circumferences of both ends of the cylinder 34 in the axial direction. It is supported relative to each other. The air motor 46 (Fig. 8)
The output shaft 44 is fixed to the rear portion 30 of the drive case 26 so that the output shaft 44 is parallel to the center line of the cylindrical body 34. The rotation shaft 48 is rotatably supported in the drive case 26 by a pair of ball bearings 50 with its center line aligned with the output shaft 44, and is integrally connected to the output shaft 44 in the rotation direction by a key 51. The drive gear 52 and the driven gear 54 are
Also, they are integrally fitted in the circumferential direction of the cylindrical body 34 in the rotational direction and are meshed with each other. Despite the axial reciprocating movement of the cylindrical body 34 with respect to the drive case 26, the width of the driven gear 54 is
The width of the drive gear 52 is longer than that of the drive gear 52 so that the engagement of the drive gear 52 and the driven gear 54 is maintained.

FIG. 2 is a perspective view of the rotating body 56. In FIG. 1 and FIG. 2, the rotary body 56 has a key 57 at the front end of the rotary shaft 48.
Are integrally connected in the rotating direction via. The circumferential groove 58 is formed in the peripheral portion of the rotary body 56 so as to make one round while being displaced in the axial direction of the rotary body 56. FIG. 3 is a perspective view of the roller case 62. In FIGS. 1 and 3, the roller case 62 holds the annular roller row 60 on the inner peripheral side, and is integrated with the circumferential portion of the cylindrical body 34 in the axial direction via the annular roller row 60 so as to be relatively rotatable in the circumferential direction. Are supported, and the protruding bar 64 is suspended. The lower end of the protruding bar 64 is fitted into the circumferential groove 58 of the rotating body 56 so as to be movable in the circumferential groove 58. The protruding rod 64 of the roller case 62 is entrained in the axial direction of the cylindrical body 34 by the circumferential groove 58 of the rotating body 56 as the rotating body 56 rotates, whereby the tube body 32 and the cylindrical body 34 reciprocate in the axial direction. To do.

In FIG. 1, the straight passage 66 extends in the pipe 32 and the nozzle holder 24 along the center line of the pipe 32, and the distribution passage 68 is formed in the nozzle holder 24 to form the straight passage 66. It communicates with the swirling nozzle 22.

FIG. 4 is a structural view of a modified example of the reciprocating mechanism portion of the cylindrical body 34. Figure 1 shows the retainer ball 70 and retainer 72.
It is provided in place of the annular roller row 60 and the roller case 62, and the diameter of the rotating body 56 is larger than that in FIG. The retainer ball 70 is held on the inner peripheral side of the retainer 72, and is rotatable integrally with the cylindrical body 34 in the axial direction of the cylindrical body 34 and in the circumferential direction. The retainer ball 70 is partially exposed to the outer peripheral side of the retainer 72 at the lower end portion of the retainer 72, and this exposed portion is rollably fitted into the peripheral groove 58 of the rotating body 56. The lowermost retainer ball 70 is a rotating body.
Along with the rotation of 56, it is entrained in the axial direction of the cylindrical body 34 by the circumferential groove 58 of the rotating body 56, whereby the tubular body 32 and the cylindrical body 34 reciprocate in the axial direction.

FIG. 5 is a detailed structural diagram of the pressure-feeding hose connecting device 16. The connecting pipe 74 and the displacement pipe 76 are arranged so as to be relatively displaceable in the axial direction in the radial direction of the outer pipe and the inner pipe, respectively, and the high-pressure hose 78 is fitted to the front end portion of the displacement pipe 76 to connect the displacement pipe 76. It communicates with the straight passage 66 (Fig. 1). Connecting pipe
74 includes a large diameter portion 103 on the downstream side and a small diameter portion 104 on the upstream side, and the fitting insertion hole 80 is formed in the range of the large diameter portion 103 and opens to the front end side of the connecting pipe 74. The rear side guide 82 is fitted and inserted into the fitting insertion hole 80 from the front end of the connecting pipe 74 so as to hit the stepped portion 84 formed at the innermost side of the fitting insertion hole 80, and inside the fitting insertion hole 80, the rear side guide 82 is provided. The seal case 86, the compression coil spring 96, and the front guide 94 are fitted from the guide 82 side. The annular seals 88, 90 are fitted and inserted into the inner circumferences of both ends of the seal case 86 in the axial direction, and the connection pipe 74
Sealing is performed between the outer circumference of the displacement pipe 76 and the inner circumference of the seal case 86, while allowing relative displacement of the displacement pipe 76 in the axial direction with respect to. The O-ring 92 is fitted in an annular groove on the outer peripheral portion of the seal case 86 and seals the outer periphery of the seal case 86. The front guide 94 is screwed to the front end of the connecting pipe 74 to close the opening of the fitting insertion hole 80. The compression coil spring 96 is contracted between the seal case 86 and the front guide 94, and presses the rear guide 82 against the step portion 84 via the seal case 86.
The annular spacer 100 is spaced an appropriate distance from the step 98,
It is fixed to the outer peripheral portion of the large diameter portion 103. The connection pipe 74 is inserted into the baffle portion 12 with the front guide 94 on the back side until the annular spacer 100 is recessed. The nut 102 is screwed to the rear end of the swaging portion 12 and presses the annular spacer 100 into the swaging portion 12, whereby the front guide 94 is pressed to the step portion 98 in the swaging portion 12, and The connecting pipe 74 is prevented from coming off from the baffle portion 12. The connection port 110 is provided at the rear end of the small-diameter portion 104, a pressure feed hose that guides high-pressure water from the high-pressure pump to the portable injection device 10 is connected to the rear end of the connection port 110, and high-pressure water is supplied to the connection port 110. .

6 and 7 are a front view and a vertical sectional view of the rear guide 82. As shown in FIG. The circular hole 106 is formed in the central portion of the rear guide 82, and guides the displacement pipe 76 in the axial direction while sliding on the outer peripheral portion of the displacement pipe 76. The communication grooves 108 having four diameters are formed at intervals of 90 ° along the circumference of the circular hole 106, and the connection port 1
High pressure water from 10 is passed to the annular seal 88.

The operation of the portable injection device 10 will be described. The high-pressure water from the high-pressure pump is supplied to the connection port 110 at the rear end of the connection pipe 74 of the pressure-feeding hose connection device 16 via the pressure-feeding hose. Some high-pressure water enters the fitting insertion hole 80 from the connection port 110 through the gap between the displacement pipe 76 and the small diameter portion 104, but is blocked by the annular seals 88 and 90 in the fitting insertion hole 80. In rare cases, leakage to the outside of the fitting hole 80 is prevented. As a result, the entire amount of high-pressure water is sent to the swirling nozzle 22 via the displacement pipe 76, the high-pressure hose 78, the straight passage 66, and the distribution passage 68, and the swirling nozzle 22.
Ejected from 22.

While the high-pressure water is being jetted from the swirling nozzle 22, the rotary shaft 48 and the rotary body 56 are rotationally driven by the operation of the air motor 46. With the rotation of the rotating body 56, the lower end of the protruding bar 64 of the roller case 62 (FIG. 1) or the retainer ball 70 (FIG. 4).
Moves in the circumferential groove 58 and reciprocates in the axial direction of the rotating body 56, that is, in the axial direction of the cylindrical body 34, and the tube body 32 and the cylindrical body 34 reciprocate in the axial direction together with the swirling nozzle 22 and the nozzle holder 24. Move.

On the other hand, the drive gear 52 rotates in accordance with the rotation of the rotary shaft 48, and rotationally drives the driven gear 54. The tubular body 32 and the cylindrical body 34 rotate integrally with the driven gear 54 around the center line of the driven gear 54, that is, the center line of the cylindrical body 34. Since the center line of the tube body 32 is deviated from that of the cylinder body 34, the tube body 32 and the nozzle holder 24 revolve around the center line of the cylinder body 34.

In this way, the swirling nozzle 22 reciprocates in the axial direction of the tubular body 32 while revolving around the center line of the cylindrical body 34,
Inject high-pressure water. Due to the reciprocating motion of the swirling nozzle 22 in the axial direction of the pipe 32, the jet flow from the swirling nozzle 22 collides with the object while increasing or decreasing the speed. The jet collides with the object while vibrating the collision force, so that the ability of cleaning, peeling, chipping, etc. of the object increases.

[Brief description of drawings]

FIG. 1 is a detailed structural diagram of a nozzle driving device.

FIG. 2 is a perspective view of a rotating body.

FIG. 3 is a perspective view of a roller case.

FIG. 4 is a structural diagram of a modified example of a reciprocating mechanism portion of a cylindrical body.

FIG. 5 is a detailed structural diagram of a pressure feeding hose connecting device.

FIG. 6 is a front view of a rear guide.

FIG. 7 is a vertical sectional view of a rear guide.

FIG. 8 is a schematic structural diagram of an entire portable injection device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Portable injection device (injection device) 12 Baffle part (reciprocating support member) 22 Revolving nozzle (nozzle) 24 Nozzle holder (nozzle equipment member) 26 Drive case (reciprocating support member) 32 Pipe (nozzle equipment member) 34 Cylindrical body (nozzle equipment member) 46 Air motor (driving means) 56 Rotating body (reciprocating means rotating member) 58 Circumferential groove (reciprocating means, groove) 62 Roller case (reciprocating means, fitting element) 70 Retainer ball (reciprocating motion) Means Insertion element 74 Connection tube 76 Displacement tube (tubular body) 78 High pressure hose (connection hose) 80 Fitting hole 82 Rear guide (guide, first guide) 84 Step 86 Seal case 88 Annular seal (sealing means) 90 annular seal (seal means) 94 front guide (guide, second guide) 96 compression coil spring (compression spring member) 110 connection port (pressure) Liquid supply port)

Claims (8)

[Claims] 1. A nozzle device characterized in that the nozzle (22) is reciprocated in a substantially jet direction from the nozzle (22). 2. A nozzle (22) for ejecting a liquid (a),
(B) A nozzle mounting member (24, 32, 34) equipped with the nozzle (22) at its tip, and (c) the nozzle mounting member (24, 32, 34) in a substantially jet direction from the nozzle (22). A nozzle device comprising reciprocating means (56, 58, 62, 70) for reciprocating the (34). 3. A nozzle (22) for ejecting a liquid (a),
(B) Nozzle equipment member (2) equipped with the nozzle (22) at the tip end with the direction of the jet from the nozzle (22) as the axial direction.
4,32,34), (c) a reciprocating support member (12,26) for movably supporting the nozzle mounting member (24,32,34) in its axial direction,
(D) A rotating member (56) rotatably supported by the reciprocating support member (12, 26) and rotationally driven by a driving means (46),
(E) A groove (58) circling around the periphery of the rotary member (56) while being displaced in the axial direction of the nozzle equipment member (24, 32, 34),
And (f) the groove provided in the nozzle mounting member (24, 32, 34) integrally in the axial direction of the nozzle mounting member (24, 32, 34).
A nozzle device having fitting elements (62, 70) movably fitted into the (58). 4. An injection device equipped with the nozzle device according to claim 1. 5. (a) A pressure-feeding liquid supply port to which the pressure-feeding liquid is supplied.
(110) a connecting pipe member (74) provided on the upstream end side and fixed to the reciprocating motion supporting member (12, 26); and (b) the connecting pipe movably in the reciprocating direction of the nozzle (22). A tube body (7) which is disposed in the member (74) and faces the upstream end side to the pressure-feeding liquid supply port (110).
6), (c) Sealing means (88) for sealing the connecting pipe member (74) and the pipe body (76) while allowing relative displacement between the nozzle (22) in the reciprocating direction. , 90), and (d) a connecting hose (78) extending substantially in the reciprocating direction of the nozzle (22) and connected at both ends to the downstream end side of the pipe body (76) and the nozzle (22), respectively. The injection device according to claim 4, characterized in that it has. 6. The pipe body fitted and inserted in the connection pipe member (74)
The injection device according to claim 5, further comprising a guide (82, 94) for guiding the (76) in the reciprocating direction of the nozzle mounting member (24, 32, 34). 7. The pressure-feeding liquid supply port (110) is opened to the end opposite to the pressure-feeding liquid supply port (110) of the connection pipe member (74).
There is a fitting insertion hole (80) having a step (84) on the side, and the fitting insertion hole (80)
Inside, a first guide (82) that is applied to the stepped portion (84) and guides the pipe body (76) in the reciprocating direction of the nozzle mounting member (24, 32, 34), the pipe body ( A seal case (86) for holding the sealing means (88, 90) for sealing between the connection pipe member (74) and the connection pipe member (74), the connection pipe member (86) at the opening of the fitting insertion hole (80). A second guide (9) which is fixed to (74) and guides the tube body (76) in the reciprocating direction of the nozzle equipment member (24, 32, 34).
4), and the first guide (82) and the second guide (94)
The injection device according to claim 5, characterized in that a compression spring member (96) that is contracted between and is inserted therein. 8. The second guide (94) is the connecting pipe member.
The injection device according to claim 7, characterized in that the injection device is fastened to the connecting pipe member (74) by being screwed into the (74).