CN201354639Y - Press-in pick-shaped bit - Google Patents

Press-in pick-shaped bit Download PDF

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Publication number
CN201354639Y
CN201354639Y CNU2009200373247U CN200920037324U CN201354639Y CN 201354639 Y CN201354639 Y CN 201354639Y CN U2009200373247 U CNU2009200373247 U CN U2009200373247U CN 200920037324 U CN200920037324 U CN 200920037324U CN 201354639 Y CN201354639 Y CN 201354639Y
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CN
China
Prior art keywords
pick
bit
head
press
height
Prior art date
Application number
CNU2009200373247U
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Chinese (zh)
Inventor
陈智伟
Original Assignee
陈智伟
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Publication date
Application filed by 陈智伟 filed Critical 陈智伟
Priority to CNU2009200373247U priority Critical patent/CN201354639Y/en
Application granted granted Critical
Publication of CN201354639Y publication Critical patent/CN201354639Y/en

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Abstract

The utility model relates to a coal cutter easy-wearing component, in particular to a press-in pick-shaped bit. According to the technical solution provided by the utility model, the press-in pick-shaped bit comprises a bit head and a bit handle which are both integrally connected. The top end portion of a bit body is integrally connected with a bit seat, the bit head is mounted on the bit seat by the bit handle, a mounting cavity is arranged on the top end portion of the bit seat along the axis, the bit handle is mounted in interference fit in the mounting cavity, and the height of the bit head is 1/3-1/2 of the sum height of the bit head and the bit seat. The press-in pick-shaped bit has the advantages of substantially extending the service life, non-cracking, non-easy dropping and the like.

Description

压入式镐型截齿 Press-type pick Gao

技术领域 FIELD

本实用新型涉及一种采煤机易磨损部件,尤其是一种压入式镐型截齿。 The present invention relates to a miner wearing parts, in particular a push-type pick pick. 背景技术 Background technique

原先的采煤机截齿,其头部均为一小块硬质合金经高频焊接技术与齿体结合而成,其使用寿命有限,是因为其本身结构与加工工艺不可避免的缺陷 Original Shearer, which are a small head by high-frequency welding technique carbide body bonded with the teeth, its service life is limited, because of its own structure and inevitable process defect

所致。 Due. 其一,75度的一小块尖头是硬质合金材料,其硬度确实较高,但在煤层中碰上强度较大的石块如煤矸石等,就会自行爆裂。 First, a small piece 75 of tip material is cemented carbide, which is indeed a higher hardness, but greater intensity stones hit the like as gangue in the coal seam will burst itself. 其二,组合时因焊接温度较高,下齿体必然退火,自然影响整体强度,不耐磨。 Second, due to higher welding temperature combination, the tooth element necessarily annealing, affect the overall strength of the natural, do not wear. 经过几个班次连续工作,势必齿体磨损加快,导致硬质合金头子因无所依托而脱落。 After several shifts of continuous work, it is bound to accelerate tooth wear body, resulting in the head because the cemented carbide nothing to rely on but fall off. 发明内容 SUMMARY

本实用新型的目的是克服现有技术中存在的不足,提供一种使用寿命大大延长、不会裂、不易掉落的压入式镐型截齿。 The object of the present invention to overcome the disadvantages present in the prior art, to provide a greatly extended service life, does not crack, the press-type pick easy pick falling.

按照本实用新型提供的技术方案,所述压入式镐型截齿,包括呈一体连接的截齿头与截齿柄,截齿体顶端部一体连接有截齿座,截齿头通过截齿柄安装在截齿座上,在截齿座顶端部沿着其轴线开设有安装凹腔,截齿柄过盈配合安装在安装凹腔内,且截齿头的高度为截齿头与截齿座高度之和的1/3~1/2。 According to the aspect of the present invention provides a push-type pick cutter, comprising a truncated form of the pick head and the shank are integrally connected to the top portion of the cutting bit body is integrally connected to the pick holder, the pick through the pick head seat mounted on the shank pick, pick box in the top portion defines along its axis with a mounting cavity, the pick shank interference fit within the cavity in the mounting height, and the head of the pick and the pick head picks the seat height and 1/3 ~ 1/2.

本实用新型具有使用寿命大大延长、不会裂与不易掉落等优点。 The present invention has greatly extended service life, and does not crack easily fall advantages. 附图说明 BRIEF DESCRIPTION

图1是本实用新型的整体结构示意图。 FIG 1 is an overall schematic view of the new present invention. 具体实施方式 Detailed ways

下面结合具体附图和实施例对本实用新型作进一步说明。 The following specific embodiments in conjunction with the drawings and further explanation of the invention as. 本实用新型主要由截齿头1、截齿柄2、截齿体3、截齿座4与安装凹腔5等部件构成。 The present invention is mainly composed of a pick head, the pick shank 2, 3 picks, pick holder 4 with the mounting member 5 and the like constituting the cavity.

该压入式镐型截齿,包括呈一体连接的截齿头1与截齿柄2,截齿体3 顶端部一体连接有截齿座4,截齿头1通过截齿柄2安装在截齿座4上,在截齿座4顶端部沿着其轴线开设有安装凹腔5,截齿柄2过盈配合安装在安装凹腔5内,且截齿头1的高度为截齿头1与截齿座4高度之和的1/3~1/2。 The press-pick type cutter, comprising a truncated tooth head integrally connected to a pick shank 2, 3 to the top portion of the cutting bit body is integrally connected with a pick box 4, the pick head 1 by the pick shank 2 is attached to a truncated tooth holder 4, the tip portion of the pick holder 4 along its axis defines a mounting cavity 5, the pick shank 2 interference fit within the mounting cavity 5, and the height of the teeth cut the head of the pick head 1 1 and the sum of the height of the pick holder 4 1/3 ~ 1/2.

本实用新型的头部组合式采煤机截齿,其截齿头1与截齿柄2采用高强度特种钢材一体制成,经热处理后采用过盈配合压入截齿体3顶端部截齿座 The present invention combined shearer head, which cut the pick shank and a head 2 integrally formed using high strength special steel, after heat treatment using an interference fit into the press-3 truncated tip of the tooth pick body seat

4的安装凹腔5内,其截齿头l头部坚硬、抗磨且耐高温,经久耐用,使用 The mounting cavity 54, the head l pick head hard, wear and high temperature, durable, using

时效超过现有国内、国际同类产品水平。 Aging than the existing domestic and international level of similar products.

本实用新型因截齿头1本身强度高且耐高温、耐磨,而截齿头1高度h The present invention because of the high teeth cut head 1 itself and the intensity of high temperature, wear, pick head 1 and the height h

占截齿头1与截齿座4高度之和(整个截齿有效工作长度)的1/3~1/2,加上过盈配合整体性能好,故使用时间大大超过合金头截齿,而且不会裂、不易掉落。 Accounting pick head 1 and the pick holder 4 and the height (the effective working length of the entire pick) 1/3 ~ 1/2, together with an interference fit to have a good overall performance, so the use of much longer than head pick alloy, and It does not crack, easy to fall.

Claims (1)

1、一种压入式镐型截齿,包括呈一体连接的截齿头(1)与截齿柄(2),截齿体(3)顶端部一体连接有截齿座(4),截齿头(1)通过截齿柄(2)安装在截齿座(4)上,其特征是:在截齿座(4)顶端部沿着其轴线开设有安装凹腔(5),截齿柄(2)过盈配合安装在安装凹腔(5)内,且截齿头(1)的高度为截齿头(1)与截齿座(4)高度之和的1/3~1/2。 A press-type pick cutter, comprising a truncated tooth head (1) is integrally connected to the pick shank (2), the cutting bit body (3) is integrally connected to the top portion of the pick holder (4), the cross-sectional tooth head (1) by the pick shank (2) mounted on the pick holder (4), characterized in that: the pick holder (4) along its axis to the top portion defines a mounting cavity (5), pick the shank (2) an interference fit mounted in the mounting cavity (5), and a height of the pick head (1) of the pick head (1) and pick box (4) and a height of 1/3 ~ 1 / 2.
CNU2009200373247U 2009-01-21 2009-01-21 Press-in pick-shaped bit CN201354639Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNU2009200373247U CN201354639Y (en) 2009-01-21 2009-01-21 Press-in pick-shaped bit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNU2009200373247U CN201354639Y (en) 2009-01-21 2009-01-21 Press-in pick-shaped bit

Publications (1)

Publication Number Publication Date
CN201354639Y true CN201354639Y (en) 2009-12-02

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Family Applications (1)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102852520A (en) * 2012-05-15 2013-01-02 山东科技大学 Self-locking method of excavator cutting tooth cemented carbide bit
CN103009001A (en) * 2012-12-20 2013-04-03 河南省煤科院耐磨技术有限公司 Production method of cold assembly low-cutting-resistance wear-resistant conical bit

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102852520A (en) * 2012-05-15 2013-01-02 山东科技大学 Self-locking method of excavator cutting tooth cemented carbide bit
CN103009001A (en) * 2012-12-20 2013-04-03 河南省煤科院耐磨技术有限公司 Production method of cold assembly low-cutting-resistance wear-resistant conical bit
CN103009001B (en) * 2012-12-20 2015-06-10 河南省煤科院耐磨技术有限公司 Production method of cold assembly low-cutting-resistance wear-resistant conical bit

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