CN203175552U - Telescopic device for cutting part of heading machine - Google Patents

Telescopic device for cutting part of heading machine Download PDF

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Publication number
CN203175552U
CN203175552U CN 201320093754 CN201320093754U CN203175552U CN 203175552 U CN203175552 U CN 203175552U CN 201320093754 CN201320093754 CN 201320093754 CN 201320093754 U CN201320093754 U CN 201320093754U CN 203175552 U CN203175552 U CN 203175552U
Authority
CN
China
Prior art keywords
flexible
core
telescopic
main shaft
protection tube
Prior art date
Application number
CN 201320093754
Other languages
Chinese (zh)
Inventor
齐占波
穆松柏
高顺武
郭伟岩
Original Assignee
中传重型装备有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 中传重型装备有限公司 filed Critical 中传重型装备有限公司
Priority to CN 201320093754 priority Critical patent/CN203175552U/en
Application granted granted Critical
Publication of CN203175552U publication Critical patent/CN203175552U/en

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Abstract

The utility model relates to a telescopic device for a cutting part of a heading machine. The telescopic device comprises a main cutting shaft, a telescopic protective barrel, bearings, an inner telescopic barrel and an outer telescopic barrel. The telescopic device is characterized in that the top end of the inner telescopic barrel is provided with an end cover; a floating sealing seat is arranged on the combination surface of the end cover and the main cutting shaft; the end cover, the top end of the inner telescopic barrel and the end of the telescopic protective barrel are fixedly connected through bolts; the top end of the inner telescopic barrel is connected with the main cutting shaft through the two bearings; a water sealing sleeve and a shaft sleeve are arranged between the two bearings; the outer telescopic barrel is located in an interlayer arranged between the inner telescopic barrel and the telescopic protective barrel; the inner telescopic barrel and the telescopic protective barrel synchronously act; and a telescopic cylinder drives the inner telescopic barrel and the telescopic protective barrel to slide along the outer telescopic barrel.

Description

Tunneling machine cutting portion stretching device

Technical field

The utility model relates to a kind of tunneling machine cutting portion stretching device in the development machine.

Background technology

Stretching device is the chief component of tunneling machine cutting portion, and the basic structure of traditional tunneling machine cutting portion stretching device as shown in Figure 1.In this tunneling machine cutting portion stretching device; when cutting units tunnels forward; all driving power passes to self-aligning ball bearing 12 to flexible protection tube 9, inner core 11 and cut main shaft 1 stretch by bolt 3 under the effect of hydraulic jack; export cut driving power again; in this process; bolt 3 will bear very big power, and a self-aligning ball bearing 12 only is installed, and have to the ability to bear of axial force defectives such as the stablizing effect in the less and telescopic process is not good.

In view of above-mentioned defective, how improving tunneling machine cutting portion stretching device has become the technical problem that those skilled in the art press for solution.

The utility model content

The purpose of this utility model is; stressed excessive with the connecting bolt 3 of flexible inner core 11 joint portions at the flexible protection tube 9 that traditional tunneling machine cutting portion stretching device exists; there are to the ability to bear of axial force defectives such as the stablizing effect in the less and telescopic process is not good in self-aligning ball bearing 12, and a kind of new tunneling machine cutting portion stretching device is provided.

The purpose of this utility model is achieved in that a kind of tunneling machine cutting portion stretching device; comprise the cut main shaft; flexible protection tube; bearing; flexible inner core and outer telescopic tube; it is characterized in that: flexible inner core top is provided with end cap; the bonding surface of end cap and cut main shaft is provided with the floating seal seat; end cap; flexible inner core top and flexible protection tube end are bolted to connection; flexible inner core top is connected with the cut main shaft by two bearings; be provided with watertight big envelope and axle sleeve between two bearings; in the interlayer of outer telescopic tube between flexible inner core and flexible protection tube; flexible inner core and flexible protection tube synchronization action, telescopic oil cylinder drives them and slides along outer telescopic tube.

In the utility model: end cap, flexible inner core top and flexible protection tube end are bolted to connection and refer to; flexible inner core top and flexible protection tube end are respectively equipped with the shaft shoulder and seam, and the shaft shoulder on end cap, flexible inner core top and flexible protection tube end seam are bolted to connection.

In the utility model: two bearings are that two taper roll bearings cooperate in pairs, one in them between cut spindle nose bearing support and flexible inner core, another is between flexible inner core top and cut main shaft.

In the utility model: between the taper roll bearing between flexible inner core top and the cut main shaft and watertight big envelope, also be provided with the adjustment spacer ring.

In the utility model: the floating seal seat is positioned the bonding surface of end cap and cut main shaft by round nut.

The utility model advantage is: because flexible protection tube is that seam and the shaft shoulder cooperate with the end face of flexible inner core, the driving power that produces when telescopic oil cylinder stretches out forward directly acts on flexible protection tube, bolt does not bear driving power, make the cut stressing conditions better like this, reduced the fault rate of cutting units; The taper roll bearing that passes through two pairings owing to the cut main shaft is connected with flexible inner core, can bear to have stability preferably in bigger cut axial force and the telescopic process; Owing between the taper roll bearing between flexible inner core top and the cut main shaft and watertight big envelope, also be provided with the adjustment spacer ring, can install preceding according to the actual tolerance dimension of measuring floating seal seat, floating seal seat, watertight big envelope, play requirement in conjunction with taper roll bearing, guarantee that each parts is in optimum Working, the scene allotment workload when having reduced assembling.

Description of drawings

Fig. 1 is tunneling machine cutting portion stretching device structural representation commonly used at present.

Fig. 2 is a kind of example structure schematic diagram that the utility model relates to.

Among the figure: 1, cut main shaft, 2, floating seal, 3, bolt, 4, end cap, 5, adjust spacer ring, 6, the watertight big envelope, 7, axle sleeve, 8, round nut, 9, flexible protection tube, 10, bearing, 11, flexible inner core, 12, self-aligning ball bearing, 13, outer telescopic tube.

The specific embodiment

Fig. 2 discloses the concrete structure of the utility model embodiment without limitation, below in conjunction with accompanying drawing the utility model is done to describe further.

As seen from Figure 2; the utility model comprises cut main shaft 1; flexible protection tube 9; bearing 10; flexible inner core 11 and outer telescopic tube 13; in it is characterized in that: flexible inner core 11 tops are provided with end cap 4; end cap 4 is provided with floating seal seat 2 with the bonding surface of cut main shaft 1; end cap 4; fixedly connected by bolt 3 with flexible protection tube 9 ends in flexible inner core 11 tops; flexible inner core 11 tops are connected with cut main shaft 1 by two bearings 10; be provided with watertight big envelope 6 and axle sleeve 7 between two bearings 10; in the interlayer of outer telescopic tube 13 between flexible inner core 11 and flexible protection tube 9; flexible inner core 11 and flexible protection tube 9 synchronization actions, telescopic oil cylinder drives them and slides along outer telescopic tube 13.

In the present embodiment, flexible inner core 11 tops are provided with the shaft shoulder, and flexible protection tube 9 ends are provided with seam, and the shaft shoulder on end cap 4, flexible inner core 11 tops is fixedlyed connected by bolt 3 with flexible protection tube 9 end seams.Flexible inner core 11 tops are connected with cut main shaft 1 by the taper roll bearing of two pairings, one in them between cut main shaft 1 end axis bearing and flexible inner core 11, another is between flexible inner core 11 tops and cut main shaft 1.

In the present embodiment, also be provided with between the taper roll bearing between flexible inner core 11 tops and the cut main shaft 1 and watertight big envelope 6 and adjust spacer ring 5, described floating seal seat 2 is positioned the combination of end cap 4 and cut main shaft 1 by round nut 8 simultaneously.

Claims (5)

1. tunneling machine cutting portion stretching device; comprise the cut main shaft; flexible protection tube; bearing; flexible inner core and outer telescopic tube; it is characterized in that: flexible inner core top is provided with end cap; the bonding surface of end cap and cut main shaft is provided with the floating seal seat; end cap; flexible inner core top and flexible protection tube end are bolted to connection; flexible inner core top is connected with the cut main shaft by two bearings; be provided with watertight big envelope and axle sleeve between two bearings; in the interlayer of outer telescopic tube between flexible inner core and flexible protection tube; flexible inner core and flexible protection tube synchronization action, telescopic oil cylinder drives them and slides along outer telescopic tube.
2. tunneling machine cutting according to claim 1 portion stretching device; it is characterized in that: end cap, flexible inner core top and flexible protection tube end are bolted to connection and refer to; flexible inner core top and flexible protection tube end are respectively equipped with the shaft shoulder and seam, and the shaft shoulder on end cap, flexible inner core top and flexible protection tube end seam are bolted to connection.
3. tunneling machine cutting according to claim 1 portion stretching device, it is characterized in that: described two bearings are that two taper roll bearings cooperate in pairs, one in them between cut spindle nose bearing support and flexible inner core, another is between flexible inner core top and cut main shaft.
4. tunneling machine cutting according to claim 3 portion stretching device is characterized in that: also be provided with the adjustment spacer ring between the taper roll bearing between flexible inner core top and the cut main shaft and watertight big envelope.
5. according to the described tunneling machine cutting of one of claim 1 ~ 4 portion stretching device, it is characterized in that: described floating seal seat is positioned the bonding surface of end cap and cut main shaft by round nut.
CN 201320093754 2013-03-01 2013-03-01 Telescopic device for cutting part of heading machine CN203175552U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201320093754 CN203175552U (en) 2013-03-01 2013-03-01 Telescopic device for cutting part of heading machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201320093754 CN203175552U (en) 2013-03-01 2013-03-01 Telescopic device for cutting part of heading machine

Publications (1)

Publication Number Publication Date
CN203175552U true CN203175552U (en) 2013-09-04

Family

ID=49072267

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201320093754 CN203175552U (en) 2013-03-01 2013-03-01 Telescopic device for cutting part of heading machine

Country Status (1)

Country Link
CN (1) CN203175552U (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105114072A (en) * 2015-08-18 2015-12-02 潘啟国 Working head of mine excavating equipment
CN105114473A (en) * 2015-08-04 2015-12-02 上海创力集团股份有限公司 Tunneling machine stretching part structure
CN105401941A (en) * 2015-12-23 2016-03-16 林州重机集团股份有限公司 Telescoping structure of heading machine
WO2017101888A1 (en) * 2015-12-14 2017-06-22 刘素华 Multi-level protection sealing telescopic shaft sleeve reciprocating impact portion

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105114473A (en) * 2015-08-04 2015-12-02 上海创力集团股份有限公司 Tunneling machine stretching part structure
CN105114473B (en) * 2015-08-04 2018-08-07 上海创力集团股份有限公司 A kind of flexible part of heading machine structure
CN105114072A (en) * 2015-08-18 2015-12-02 潘啟国 Working head of mine excavating equipment
WO2017101888A1 (en) * 2015-12-14 2017-06-22 刘素华 Multi-level protection sealing telescopic shaft sleeve reciprocating impact portion
CN105401941A (en) * 2015-12-23 2016-03-16 林州重机集团股份有限公司 Telescoping structure of heading machine

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Date Code Title Description
GR01 Patent grant
C14 Grant of patent or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20130904

Termination date: 20180301

CF01 Termination of patent right due to non-payment of annual fee