JP5929932B2 - Construction machinery - Google Patents

Description

  The present invention relates to a construction machine having a hydraulic pipe that connects between two hydraulic devices provided on an upper frame that can turn with respect to a lower traveling body.

  In a conventional construction machine, the hydraulic piping provided on the upper frame is prevented from coming into contact with the surrounding structure when the lower traveling body is traveling and when the upper frame is turned (hereinafter referred to as vibration of the construction machine). Therefore, the relative movement of the hydraulic piping with respect to the upper frame is restricted.

  Specifically, this type of construction machine includes a holding member that holds an intermediate portion of the hydraulic piping, and a support mechanism that supports the holding member on the upper frame.

  Here, as the support mechanism, a configuration for fixing the holding member to the upper frame so that movement of the holding member in all directions with respect to the upper frame is restricted may be employed.

  However, in this case, the external force applied to the hydraulic piping when the construction machine vibrates loses the escape space between the hydraulic device and the holding member, so that the external force acts on the hydraulic piping itself and increases the load on the hydraulic piping.

  In order to reduce the burden of such hydraulic piping, for example, it is conceivable to employ a piping clamp described in Patent Document 1.

  Specifically, the pipe clamp includes a clamp receiver (support mechanism) and a clamp body (holding member) installed horizontally in a state of being placed and supported on the clamp receiver. Pin holes are provided at two locations on the clamp body, and mounting pins project vertically from the clamp receiver at positions corresponding to both pin holes. Each mounting pin is inserted into each mounting hole from below.

  Thereby, since the upward movement with respect to the clamp receiver of a clamp main body is accept | permitted, the burden of hydraulic piping can be reduced.

JP 2012-87549 A

  However, in the construction machine described in Patent Document 1, the clamp body is placed on the upper surface of the clamp receiver.

  Therefore, when the middle part of the hydraulic piping hangs down between two hydraulic devices, the middle part of the hydraulic piping held by the clamp body contacts the upper surface of the clamp receiver when the construction machine vibrates. Otherwise, the hydraulic piping may be damaged.

  An object of the present invention is to provide a construction machine capable of suppressing the contact of the hydraulic piping with respect to the surrounding structure and reducing the damage of the hydraulic piping while reducing the load on the hydraulic piping during vibration of the construction machine. It is in.

In order to solve the above-described problems, the present invention provides a lower traveling body, an upper frame that is turnably provided on the lower traveling body, and a hydraulic pressure that connects two hydraulic devices provided on the upper frame. And a holding member that holds a middle portion of the hydraulic piping located below a connection portion of the hydraulic piping with respect to the two hydraulic devices, and is set in advance in the upper frame. A support mechanism for supporting the holding member on a support surface, the support mechanism being spaced apart from the support surface and moving the holding member in a specific direction relative to the upper frame while permitting the movement of the direction other than the specific direction while restraining the, the holding member supporting, the support mechanism is, on the support surface the hydraulic pipe over its entire length The hydraulic pipe having a length capable of connecting the two hydraulic devices in a state where the two hydraulic devices are connected to each other, and the holding member provided on the support surface and restraining the movement in the specific direction. And the engaging portion is a columnar engaging pin extending upward from the support surface. The engaging pin is configured such that the holding member is centered on the axis of the engaging pin. rotatable and becomes as, and, as the holding member is movable along the axis of the engaging pin, to have a insertable diameter engaging hole formed in the holding member, providing a construction machine To do.

  According to the present invention, the movement of the holding member in the specific direction with respect to the upper frame is restricted by the support mechanism. Therefore, it is possible to restrict the hydraulic piping from approaching the surrounding configuration adjacent to the hydraulic piping in a specific direction, and it is possible to suppress the hydraulic piping from contacting the surrounding configuration when the construction machine vibrates. .

  On the other hand, since the movement of the holding member in a direction other than the specific direction is allowed, the hydraulic pipe moves with an external force generated in the hydraulic pipe when the construction machine vibrates. Thereby, the external force which acts on hydraulic piping itself can be reduced.

  Further, according to the present invention, since the holding member is supported in a state of being separated upward from the support surface, the middle portion of the hydraulic piping held by the holding member can be floated from the support surface. Therefore, as described above, the movement of the holding member (hydraulic piping) is allowed in a direction other than the specific direction, and the middle portion of the hydraulic piping is positioned below the connecting portion of the hydraulic piping to the two hydraulic devices ( In a situation where the hydraulic piping hangs between two hydraulic devices), it is possible to suppress the middle portion of the hydraulic piping from contacting the support surface.

  Therefore, according to the present invention, it is possible to suppress the contact of the hydraulic piping with respect to the surrounding structure and reduce the damage to the hydraulic piping while reducing the burden on the hydraulic piping during the vibration of the construction machine.

The support mechanism is configured for supporting in a state of being spaced apart on the holding member from the support surface (e.g., hang the holding member holding member on the support surface structure for supporting from below, or on a support surface If the configuration) that have separately have for, the configuration of the construction machine is complicated.

Therefore, in the present invention, the support mechanism includes the hydraulic pipe having a length that allows connection between the two hydraulic devices in a state where the hydraulic pipe is disposed above the support surface over the entire length thereof, and together provided on the support surface is closed and an engaging portion for engaging the holding member so as to restrain the movement of the specific direction.

As a result , the length of the hydraulic piping is set so that the hydraulic piping is arranged above the support surface over the entire length thereof, so that the holding member is separated from the support surface upward using the tension of the hydraulic piping. Can be placed at the position. Therefore, it is not necessary to provide a special configuration for supporting the holding member in a state of being spaced upward from the support surface.

  The movement of the holding member in a specific direction can be restricted by the engagement between the holding member and the engaging portion arranged on the support surface in this way.

Specifically, in the present invention, the engaging portion is a columnar engaging pin extending upward from the support surface, and the engaging pin rotates the holding member around the axis of the engaging pin. possible and will, and the holding member is closed to the engagement so as to be movable along the axis of the pin, insertable diameter engaging hole formed in said holding member.

Thus , with a simple configuration in which the engagement pin is inserted into the engagement hole, the holding member moves in a specific direction (a rotation direction around the axis of the engagement pin and a direction along the axis of the engagement pin). And the movement in the other direction (direction orthogonal to the axis of the engagement pin) can be restricted.

  The construction machine includes a plurality of the hydraulic pipes, the holding member is capable of holding a middle portion of the plurality of hydraulic pipes, and the engagement hole is a part of the hydraulic pipe held by the holding member. It is preferable to extend in the direction orthogonal to the longitudinal direction of the two hydraulic pipes between two adjacent hydraulic pipes.

  According to this aspect, the rotation of the holding member is permitted between the two adjacent hydraulic pipes held by the holding member around the axis of the engaging pin perpendicular to the longitudinal direction of the hydraulic pipe.

  Therefore, when an external force in the opposite longitudinal direction is applied to the two adjacent hydraulic pipes, the external force acting on both hydraulic pipes themselves can be reduced by rotating the holding member.

  Further, according to the above aspect, since the engagement pin is inserted into the engagement hole in a direction orthogonal to the longitudinal direction of the hydraulic pipe, when tension is applied to the hydraulic pipe during vibration of the construction machine, the tension is adjusted. Thus, the holding member moves upward along the axis of the engagement pin. Thereby, the tension | tensile_strength which hydraulic piping itself bears can be reduced.

  The construction machine further includes a mounting device provided between the two hydraulic devices on the upper frame, and the support mechanism moves the holding member in a direction approaching and separating from the mounting device. In the restrained state, it is preferable that the holding member is supported on the support surface provided at a position adjacent to the mounted device.

  According to this aspect, it is possible to route the hydraulic piping between the two hydraulic devices through the adjacent position of the mounted device in a state where the movement of the holding member in the direction of approaching and separating from the mounted device is restrained.

  Therefore, it is possible to suppress the contact of the hydraulic piping with the mounted device while shortening the wiring route of the hydraulic piping connecting the two hydraulic devices.

  ADVANTAGE OF THE INVENTION According to this invention, the contact of hydraulic piping with respect to the surrounding structure can be suppressed, and damage to hydraulic piping can be suppressed, reducing the burden of hydraulic piping at the time of vibration of a construction machine.

1 is a left side view of a hydraulic excavator according to an embodiment of the present invention. It is a top view which shows the upper frame shown in FIG. 1, and the apparatus provided in this. It is a perspective view which expands and shows a part of structure shown in FIG. FIG. 3 is an enlarged plan view showing a part of the configuration shown in FIG. 2. It is the VV sectional view taken on the line of FIG. It is a side view which expands and shows the holding member 16 of FIG. It is the VII-VII sectional view taken on the line of FIG.

  Embodiments of the present invention will be described below with reference to the accompanying drawings. The following embodiments are examples embodying the present invention, and are not of a nature that limits the technical scope of the present invention.

  FIG. 1 is a left side view showing a hydraulic excavator 1 as an example of a construction machine according to an embodiment of the present invention.

  The hydraulic excavator 1 includes a self-propelled lower traveling body 2 having a crawler 2a, an upper revolving body 3 provided on the lower traveling body 2 so as to be pivotable about a revolving axis C1, and an upper revolving body 3 And the work attachment 4 attached to be displaceable. Hereinafter, a description will be given using the direction viewed from the operator of the excavator 1. The turning axis C1 is an axis along the vertical direction.

  The work attachment 4 includes a boom 5 that can be raised and lowered with respect to the upper swing body 3, an arm 6 that is rotatably attached to the distal end portion of the boom 5, and a rotation with respect to the distal end portion of the arm 6. And a bucket 7 that is movably mounted.

  The work attachment 4 also includes a boom cylinder 8 that raises and lowers the boom 5 relative to the upper swing body 3, an arm cylinder 9 that rotates the arm 6 relative to the boom 5, and a bucket 7 that rotates relative to the arm 6. The bucket cylinder 10 is provided.

  Referring to FIGS. 1 and 2, the upper swing body 3 includes an upper frame 11 provided on the lower traveling body 2 so as to be capable of turning about a turning axis C <b> 1, and a swing motor provided on the upper frame 11 ( Onboard equipment) 12, control valve (hydraulic equipment) 14 and swivel joint (hydraulic equipment) 15, and four hydraulic pipes T connecting the control valve 14 and swivel joint 15 (see FIG. 4: simplified in FIG. 2) 2 only) and a pair of holding members 16 that hold the middle part of the hydraulic pipe T.

  The upper frame 11 includes a bottom plate 17 attached to the lower traveling body 2, a pair of left and right vertical plates 18 erected on the bottom plate 17, and a right side frame fixed to the bottom plate 17 on the right side of the right vertical plate 18. 19, a left side frame 20 fixed to the bottom plate 17 on the left side of the left vertical plate 18, and a motor mounting mechanism 21 and a valve mounting mechanism 22 (see FIG. 3) provided on the bottom plate 17.

  The pair of vertical plates 18 oppose each other in the left-right direction and extend in the front-rear direction. Both the vertical plates 18 support the base end portion of the work attachment 4 (boom 5) between the front portions of the vertical plates 18.

  The swing motor 12, the control valve 14, and the swivel joint 15 are provided side by side in the front-rear direction between the vertical plates 18. Specifically, the swivel joint 15, the swing motor 12, and the control valve 14 are arranged in this order from the front. Hereinafter, these configurations will be described with reference to FIGS.

  The turning motor 12 is for driving the upper turning body 3 to turn relative to the lower traveling body 2. The turning motor 12 is mounted on the bottom plate 17 via a motor mounting mechanism 21. Specifically, the motor attachment mechanism 21 has an attachment plate 21 a fixed on the bottom plate 17. A plurality of unillustrated screw holes are formed in the mounting plate 21a. On the other hand, the turning motor 12 includes a motor body 12a and a mounting flange 12b that protrudes outward from the motor body 12a at the lower end of the motor body 12a. A plurality of through holes (not shown) are formed in the mounting flange 12b. In a state where the mounting flange 12b is placed on the mounting plate 21a, the turning motor 12 is mounted on the mounting plate 21a by screwing the bolt B1 inserted into the through hole of the mounting flange 12b into the screw hole of the mounting plate 21a. Mounted on top.

  The control valve 14 controls supply and discharge of hydraulic fluid between a hydraulic pump (not shown) and a hydraulic actuator (for example, the cylinders 8 to 10 and the turning motor 12). The control valve 14 is mounted on the bottom plate 17 via a valve mounting mechanism 22. Specifically, the valve mounting mechanism 22 includes a pair of front and rear pedestals 22a. The control valve 14 is fixed to both pedestals 22a in a state of being placed on both pedestals 22a.

  The swivel joint 15 supplies hydraulic oil from the control valve 14 to a travel motor (not shown) provided in the lower traveling body 2 and guides the hydraulic oil derived from the travel motor to the control valve 14. is there. The swivel joint 15 is fixed to the bottom plate 17 through the bottom plate 17 vertically through a through hole 17 a formed in the bottom plate 17.

  With reference to FIG. 4, two of the four hydraulic pipes T are disposed on the right side of the swing motor 12, and the remaining two are disposed on the left side of the swing motor 12. One of the two holding members 16 is provided on the right side of the turning motor 12, and the other is provided on the left side of the turning motor 12. Since the two hydraulic pipes T and the holding member 16 arranged on the right side and the two hydraulic pipes T and the holding member 16 arranged on the left side have the same configuration, the two hydraulic pipes arranged on the left side are arranged. Only the pipe T and the holding member 16 will be described.

  4 and 5, each of the two left hydraulic pipes T is connected to each of the two ports arranged in the left part of the swivel joint 15 and the left side surface of the control valve 14. Is connected to each of the two ports provided in.

  The holding member 16 holds a middle portion of the hydraulic pipe T located below the connection part T1 of the hydraulic pipe T to the control valve 14 and the connection part T2 of the hydraulic pipe T to the swivel joint 15.

  Referring to FIGS. 6 and 7, the holding member 16 surrounds the surrounding member 23 that surrounds the two hydraulic pipes T, and the surrounding member 23 from the outside in order to fix the surrounding member 23 and both the hydraulic pipes T. A fastening band 24 for fastening is provided.

  The surrounding member 23 includes an surrounding member main body 25 and a pair of retaining flanges 26 that protrude outward from the surrounding member main body 25 at both ends of the surrounding member main body 25.

  The surrounding member body 25 includes a pair of insertion holes 25a through which each of the two hydraulic pipes T passes, an engagement hole 25b provided between both the insertion holes 25a, and the surrounding member 23 through the insertion holes 25a. And a slit 25c extending to the outer peripheral surface.

  The insertion hole 25a has an inner diameter through which the hydraulic pipe T can be passed along its longitudinal direction. Here, the insertion hole 25a can be opened to the side (downward) by the slit 25c. Therefore, the hydraulic pipe T can be inserted into the insertion hole 25a through the slit 25c in a direction (upward) perpendicular to the longitudinal direction. The reason why the slit 25c is formed downward is to prevent foreign matter from entering the insertion hole 25a.

  The engagement hole 25 b extends in a direction orthogonal to the longitudinal direction of the hydraulic pipe T and penetrates the surrounding member body 25. The engagement hole 25b has an inner diameter into which an engagement pin 21b described later can be inserted.

  The pair of tightening bands 24 are provided on both sides (front side and rear side) of the engagement hole 25 b and inside the pair of retaining flanges 26. As a result, contact between an engagement pin 21b, which will be described later, inserted into the engagement hole 25b, and the two fastening bands 24 can be avoided, and the two fastening bands 24 can be removed from the surrounding member body 25 in the front-rear direction. Can be prevented.

  With reference to FIGS. 5 and 6, the holding member 16 is supported on the upper frame 11 in a state of being spaced upward from a support surface 21 c set on the mounting plate 21 a of the motor mounting mechanism 21.

  Specifically, the hydraulic pipe T has a length capable of connecting the control valve 14 and the swivel joint 15 in a state where the hydraulic pipe T is disposed above the support surface 21c over the entire length thereof. Therefore, the holding member 16 that holds the middle portion of the hydraulic pipe T is supported in a state of being separated upward from the support surface 21 c by the tension of the hydraulic pipe T.

  As a result, the hydraulic pipe T is connected to the support surface 21c and the longitudinal direction of the support surface 21c and the mounting plate 21a when the hydraulic excavator 1 travels and when the upper swing body 3 turns (hereinafter referred to as vibration of the hydraulic excavator 1). It can suppress that hydraulic piping T contacts the corner | angular part with the end surface of this.

  As shown in FIGS. 6 and 7, the holding member 16 is supported on the upper frame 11 in a state where movement in a specific direction with respect to the upper frame 11 is restricted and movement in a direction other than the specific direction is allowed. Has been.

  Specifically, the mounting plate 21a is provided with a cylindrical engagement pin (engagement portion) 21b extending upward from the support surface 21c. Here, the engaging pin 21b is held so that the holding member 16 can rotate around the axis of the engaging pin 21b and the holding member 16 can move along the axis of the engaging pin 21b. The member 16 has a diameter that can be inserted into the engagement hole 25 b of the member 16.

  Therefore, the movement of the holding member 16 in a direction (specific direction) orthogonal to the axis of the engagement pin 21b is restrained, and the rotation direction about the axis of the engagement pin 21b and the axis of the engagement pin 21b. The holding member 16 is allowed to move in the moving direction (direction other than the specific direction).

  Thereby, since the movement of the holding member 16 in the left-right direction with respect to the upper frame 11 is restricted, even if the support surface 21c is provided at the adjacent position in the left-right direction of the swing motor 12 as described above, the hydraulic pressure Contact between the pipe T and the turning motor 12 (particularly, the mounting flange 12b) can be suppressed. Further, since the holding member 16 is sandwiched in the left-right direction between the turning motor 12 and the vertical plate 18 (because the support surface 21c is provided at a position adjacent to the vertical plate 18), the holding member 16 and the vertical plate 18 are arranged vertically. Contact with the plate 18 can also be suppressed.

  In other words, the hydraulic pipe T and the engagement pin 21b are configured such that the holding member 16 is separated upward from the support surface 21c, and the movement of the holding member 16 in a specific direction with respect to the upper frame 11 is restricted and the movement in a direction other than the specific direction is performed. This corresponds to a support mechanism that supports the holding member 16 in a state in which the above-mentioned is allowed.

  As described above, the movement of the holding member 16 in the specific direction with respect to the upper frame 11 is restrained by the support mechanism (the hydraulic pipe T and the engagement pin 21b). Therefore, it is possible to restrict the hydraulic pipe T from approaching the swing motor 12 and the vertical plate 18 adjacent to the hydraulic pipe T in a specific direction, and the hydraulic pipe T contacts the surrounding structure when the hydraulic excavator 1 vibrates. Can be suppressed.

  On the other hand, since the movement of the holding member 16 in a direction other than the specific direction is allowed, the hydraulic pipe T moves with the external force generated in the hydraulic pipe T when the hydraulic excavator 1 vibrates. Thereby, the external force which acts on hydraulic piping T itself can be reduced.

  Further, since the holding member 16 is supported in a state of being separated upward from the support surface 21c, the middle portion of the hydraulic pipe T held by the holding member 16 can be floated from the support surface 21c. Therefore, the movement of the holding member 16 (hydraulic pipe T) is allowed in a direction other than the specific direction as described above, and the hydraulic pressure is lower than the connection portions T1 and T2 of the hydraulic pipe T with respect to the control valve 14 and the swivel joint 15. In a situation where the middle part of the pipe T is located (a situation where the hydraulic pipe T hangs down between two hydraulic devices), it is possible to prevent the middle part of the hydraulic pipe T from contacting the support surface 21c.

  Accordingly, it is possible to suppress the contact of the hydraulic pipe T with respect to the surrounding structure and reduce the damage of the hydraulic pipe T while reducing the load on the hydraulic pipe T when the hydraulic excavator 1 vibrates.

  Moreover, according to this embodiment, the following effects can be produced.

  According to the embodiment, since the length of the hydraulic pipe T is set so that the hydraulic pipe T is disposed above the support surface 21c over the entire length, the hydraulic pipe T is held using the tension of the hydraulic pipe T. The member 16 can be disposed at a position spaced upward from the support surface 21c. Therefore, it is not necessary to provide a special configuration for supporting the holding member 16 in a state of being spaced upward from the support surface 21c.

  According to the embodiment, with a simple configuration in which the engagement pin 21b is inserted into the engagement hole 25b, the specific direction of the holding member 16 (the rotation direction about the axis of the engagement pin 21b and the engagement pin 21b). Can be allowed to move in the other direction (direction perpendicular to the axis of the engagement pin 21b).

  According to the embodiment, the rotation of the holding member 16 about the axis line of the engaging pin 21b orthogonal to the longitudinal direction of the hydraulic pipe T between two adjacent hydraulic pipes T held by the holding member 16 is performed. Is acceptable.

  Therefore, when an external force in the opposite longitudinal direction is applied to two adjacent hydraulic pipes T, the external force acting on both hydraulic pipes T itself can be reduced by rotating the holding member 16. it can. Specifically, in the present embodiment, as shown in FIG. 4, the connecting portions T2 of the two hydraulic pipes T held by the holding member 16 with respect to the swivel joint 15 are circumferentially centered around the turning axis C1. Different. Therefore, when the swivel joint 15 rotates about the pivot axis C <b> 1 with respect to the upper frame 11 due to play in the assembly of the swivel joint 15 and the upper frame 11, one hydraulic pipe T is pulled from the holding member 16. May be subjected to an external force in a direction in which the other hydraulic pipe T is pressed against the holding member 16. In such a case, the external force acting on both hydraulic pipes T itself can be reduced by rotating the holding member 16.

  Furthermore, according to the embodiment, since the engagement pin 21b is inserted into the engagement hole 25b in a direction orthogonal to the longitudinal direction of the hydraulic pipe T, when tension is applied to the hydraulic pipe T when the excavator 1 vibrates. In addition, the holding member 16 moves upward along the axis of the engagement pin 21b according to the tension. Thereby, the tension | tensile_strength which hydraulic piping T itself bears can be reduced.

  According to the embodiment, between the control valve 14 and the swivel joint 15 through the adjacent position of the swing motor 12 in a state where the movement of the holding member 16 in the direction approaching and separating from the swing motor 12 (left and right direction) is constrained. The hydraulic pipe T can be routed.

  Therefore, the contact of the hydraulic pipe T with the swing motor 12 can be suppressed while shortening the wiring path of the hydraulic pipe T connecting the control valve 14 and the swivel joint 15.

  In the above-described embodiment, the holding member 16 is supported using the tension of the hydraulic pipe T. However, a configuration for supporting the holding member 16 in a state of being spaced upward from the support surface 21c (for example, the support surface). A configuration for supporting the holding member 16 from below on 21c or a configuration for hanging the holding member 16 on the support surface 21c) may be provided separately.

  In the embodiment, the two hydraulic pipes T are held by one holding member 16, but the number of the hydraulic pipes T held by the holding member 16 may be one or three or more.

  Furthermore, in the above-described embodiment, the movement of the holding member 16 in the direction orthogonal to the axis of the engagement pin 21b is restricted by inserting the engagement pin 21b into the engagement hole 25b. May be in any direction (left-right direction in the embodiment) that can suppress contact between the surrounding configuration (the turning motor 12 in the embodiment) and the holding member 16. For example, in the embodiment, a long hole extending in the front-rear direction can be formed instead of the engagement hole 25b, and the engagement pin 21b can be inserted into the long hole so as to be movable in the front-rear direction.

T Hydraulic piping T1, T2 (to hydraulic equipment) connection 1 Hydraulic excavator (an example of construction machinery)
2 Lower traveling body 3 Upper revolving body 11 Upper frame 12 Turning motor (an example of installed equipment)
14 Control valve (an example of hydraulic equipment)
15 Swivel joint (an example of hydraulic equipment)
16 Holding member 21b Engagement pin 21c Support surface 25b Engagement hole

Claims (3)

A construction machine comprising a lower traveling body, an upper frame provided on the lower traveling body so as to be capable of turning, and a hydraulic pipe connecting between two hydraulic devices provided on the upper frame,
A holding member that holds an intermediate portion of the hydraulic piping located below a connection portion of the hydraulic piping with respect to the two hydraulic devices;
A support mechanism for supporting the holding member on a support surface preset in the upper frame,
The support mechanism is in a state where the holding member is spaced apart from the support surface and restricts movement of the holding member in a specific direction with respect to the upper frame and allows movement in a direction other than the specific direction. Supporting the holding member ;
The support mechanism is provided on the support surface, the hydraulic pipe having a length capable of connecting between the two hydraulic devices in a state where the hydraulic pipe is disposed above the support surface over the entire length thereof. And an engaging portion that engages with the holding member so as to restrain movement in the specific direction.
The engaging portion is a cylindrical engaging pin extending upward from the support surface,
The engaging pin is formed on the holding member so that the holding member can rotate around the axis of the engaging pin and the holding member can move along the axis of the engaging pin. It is to have a insertable diameter was engaging holes, construction machinery. The construction machine includes a plurality of the hydraulic pipes,
The holding member is capable of holding intermediate portions of the plurality of hydraulic pipes,
The engagement hole extends in a direction perpendicular to the longitudinal direction of the two hydraulic pipes between adjacent two hydraulic pipes among the hydraulic pipes held by the holding member, according to claim 1 Construction machinery. The construction machine further includes a mounting device provided between the two hydraulic devices on the upper frame,
The support mechanism supports the holding member on the support surface provided at an adjacent position of the mounting device in a state in which movement of the holding member in a direction approaching and separating from the mounting device is constrained. The construction machine according to claim 1 or 2 .

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