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CN2751981Y - Special portable chest expander for belt pulley - Google Patents

Special portable chest expander for belt pulley Download PDF

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Publication number
CN2751981Y
CN2751981Y CN 200420096344 CN200420096344U CN2751981Y CN 2751981 Y CN2751981 Y CN 2751981Y CN 200420096344 CN200420096344 CN 200420096344 CN 200420096344 U CN200420096344 U CN 200420096344U CN 2751981 Y CN2751981 Y CN 2751981Y
Authority
CN
China
Prior art keywords
belt pulley
hole
clamping plates
tie
chest expander
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
CN 200420096344
Other languages
Chinese (zh)
Inventor
许忠江
张学臣
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Petrochina Co Ltd
Original Assignee
Petrochina Co Ltd
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 Petrochina Co Ltd filed Critical Petrochina Co Ltd
Priority to CN 200420096344 priority Critical patent/CN2751981Y/en
Application granted granted Critical
Publication of CN2751981Y publication Critical patent/CN2751981Y/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

The utility model relates to a be applied to maintenance technical field, follow the special chest expander of a portable belt pulley that takes off the belt pulley on the shaft, mainly constitute characterized by lead screw etc.: the screw rod is provided with a pulling plate, the pulling plate is provided with a central hole with screw threads, through holes are symmetrically arranged on two sides of the central hole of the pulling plate, the number of the through holes is 1-4 respectively on each side, connecting bolts are arranged on the through holes, the number of the bolts is 2-4, the bolts are connected with two clamping plates, the two clamping plates are symmetrical, the center of the two clamping plates is provided with a hole, the hole is opposite to the central hole of the pulling plate, through holes are symmetrically arranged on two sides of the hole, and the two clamping plates are. The two clamping plates are fixed and cannot slide down from the belt pulley. The draw claw type belt pulley taking tool overcomes the defect that the claw often slides down from the belt pulley in the existing draw claw type belt pulley taking tool.

Description

The special-purpose chest expander of a kind of portable belt pulley
Affiliated technical field
The utility model relates to a kind of maintenance tool, is the specific purpose tool of a kind of repair demolition motor pulley and miscellaneous equipment belt pulley, when being mainly used in maintenance of equipment, takes off the specific purpose tool of belt pulley from wheel shaft.
Background technology
At present, the specific purpose tool of existing dismounting motor pulley and miscellaneous equipment belt pulley is made up of leading screw, nut and the drawing claw that is connected on the nut.The drawing claw hangs over the outer of belt pulley, and leading screw end top withstands on the centre bore of belt shaft, rotating threaded shaft, and leading screw top belt shaft, claw draws belt pulley, and belt pulley is taken off from axle.Existing belt pulley extracting tool can take off belt pulley from axle.But its claw hangs over the edge of belt pulley, and is very unstable.When exerting oneself rotating threaded shaft, claw often slides from belt pulley, causes and gets the belt pulley failure.Bring a lot of difficulties to dismantlement work.
Summary of the invention
The purpose of this utility model is: for the maintenance operation personnel provide a kind of specific purpose tool---the special-purpose chest expander of a kind of portable belt pulley, change existing chest expander claw formula structure, make chest expander fixation on belt pulley, it is convenient and strength-saving to make the maintenance operation personnel take off belt pulley from axle.It is fixing insecure to overcome existing belt pulley extracting tool, brings the deficiency of difficulty for the work of dismounting belt pulley.
The technical scheme in the invention for solving the technical problem is: the special-purpose chest expander of a kind of portable belt pulley mainly is made up of institutes such as leading screws, and there is cylinder the end of leading screw, and through hole is arranged on the cylinder, can insert iron staff on the through hole, as rotary handle.It is characterized in that: have arm-tie, arm-tie that the centre bore of band screw thread is arranged on the leading screw.Arm-tie centre bore both sides symmetry has through hole.The quantity of through hole is each 1-4 of every limit.The symmetry through hole varies in size and designs in order to adapt to the dismounting diameter pulley.Connecting bolt is arranged on the through hole, and the quantity of bolt is 2-4.Bolt connects two clamping plates.Two clamping plates is symmetrical, and it is porose to lump together rear center, and the hole is relative with the arm-tie centre bore.The both sides symmetry in hole has through hole, and the quantity of through hole, diameter are identical with through hole on the arm-tie.Be fixed together at two clamping plates.Fixing means can be: there is cutting ferrule at the two ends at two clamping plates, also can adopt bolt, steel plate to fix.
Threads of lead screw can adopt standard thread, also can adopt T type screw thread.
The operating process that summary the utility model uses: two symmetrical clamping plate are opened, be buckled on the axle behind the belt pulley, symmetrical clamp is fixed with cutting ferrule.Leading screw end top withstands on the centre bore of belt shaft.Install rotating threaded shaft.Leading screw advances, and symmetrical clamping plate draw belt pulley, and belt pulley has been got from axle easily.
The beneficial effects of the utility model are: the operating process of using from above-mentioned the utility model as can be seen, the maintenance operation personnel utilize the utility model to take off belt pulley from axle, and are very convenient laborsaving.Two clamping plates is fixed by cutting ferrule, and in getting the belt pulley process, clamping plate can not slide from axle, more can not slide from belt pulley.Overcome existing drawing claw formula and got the belt pulley specific purpose tool, often caused claw to slide and cause the shortcoming of getting the belt pulley failure from belt pulley.
Description of drawings
What illustrations was represented is the structural representation of the special-purpose chest expander of a kind of portable belt pulley, is a stereogram.Represented among the figure is an embodiment of the present utility model, is not full content of the present utility model.
Among the figure, 1. leading screw, 2. arm-tie, 3. bolt, 4. cutting ferrule, 5. clamping plate A, 6. clamping plate B.
The specific embodiment
Embodiment 1: there is cylinder leading screw (1) end of the special-purpose chest expander of portable belt pulley, and through hole is arranged on the cylinder, can insert iron staff on the through hole, as rotary handle.Leading screw (1) is a T24 type screw thread.Arm-tie (2) on the leading screw (1) is wide 20 millimeters, 500 millimeters of length, 10 millimeters of thickness.Arm-tie (2) has centre bore, and T24 type screw thread is arranged in the centre bore.Arm-tie (2) centre bore both sides symmetry has through hole.The quantity of through hole is each 3 on every limit, and through-hole diameter is 19 millimeters.Connecting bolt (3) is arranged on the through hole, and the quantity of bolt (3) is 2, and bolt (3) diameter is 18 millimeters, and length is 400 millimeters.Bolt (3) connects two clamping plates, clamping plate A (5), clamping plate B (6).Two clamping plates (5) (6) symmetry, it is porose to lump together rear center, and the diameter in hole is 60 millimeters.The hole is relative with arm-tie (2) centre bore.The both sides symmetry in hole has through hole, and the quantity of through hole, diameter are identical with through hole on the arm-tie (2).Be fixed together at two clamping plates (5) (6).Fixing means is: at the two ends of two clamping plates (5) (6) cutting ferrule (4) is arranged.
Embodiment 2: basic identical with embodiment 1, difference is in the two ends of two clamping plates (5) (6) steel plate and bolting.
Embodiment 3: basic identical with embodiment 1,2, difference is that leading screw (1) screw thread adopts standard thread.

Claims (4)

1, the special-purpose chest expander of a kind of portable belt pulley, be applied to the maintenance technique field, take off belt pulley from wheel shaft, institutes such as (1) forms by leading screw, there is cylinder the end of leading screw (1), through hole is arranged on the cylinder, it is characterized in that: arm-tie (2) is arranged on the leading screw (1), and arm-tie (2) has the centre bore of band screw thread, and arm-tie (2) centre bore both sides symmetry has through hole, the quantity of through hole is each 1-4 of every limit, connecting bolt (3) is arranged on the through hole, and the quantity of bolt (3) is 2-4, and bolt (3) connects two clamping plates (5) (6), two clamping plates (5) (6) symmetry, the center that lumps together is porose, and the hole is relative with arm-tie (2) centre bore, and the both sides symmetry in hole has through hole, the quantity of through hole, diameter is identical with through hole on the arm-tie (2), is fixed together at two clamping plates.
2, the special-purpose chest expander of a kind of portable belt pulley as claimed in claim 1, it is characterized in that: leading screw (4) screw thread adopts standard thread.
3, the special-purpose chest expander of a kind of portable belt pulley as claimed in claim 1, it is characterized in that: leading screw (4) screw thread adopts T type screw thread.
4, as claim 1 or the special-purpose chest expander of 2 or 3 described a kind of portable belt pulleys, it is characterized in that: cutting ferrule (4) is arranged at the two ends of two clamping plates (5) (6).
CN 200420096344 2004-09-27 2004-09-27 Special portable chest expander for belt pulley Expired - Lifetime CN2751981Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 200420096344 CN2751981Y (en) 2004-09-27 2004-09-27 Special portable chest expander for belt pulley

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 200420096344 CN2751981Y (en) 2004-09-27 2004-09-27 Special portable chest expander for belt pulley

Publications (1)

Publication Number Publication Date
CN2751981Y true CN2751981Y (en) 2006-01-18

Family

ID=35913396

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 200420096344 Expired - Lifetime CN2751981Y (en) 2004-09-27 2004-09-27 Special portable chest expander for belt pulley

Country Status (1)

Country Link
CN (1) CN2751981Y (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102717361A (en) * 2012-06-14 2012-10-10 吴增明 Coupler detaching device
CN103302629A (en) * 2013-06-04 2013-09-18 国家电网公司 PT (potential transformer) fuse dismounting device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102717361A (en) * 2012-06-14 2012-10-10 吴增明 Coupler detaching device
CN103302629A (en) * 2013-06-04 2013-09-18 国家电网公司 PT (potential transformer) fuse dismounting device
CN103302629B (en) * 2013-06-04 2015-12-02 国家电网公司 PT insures replacer

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
C53 Correction of patent for invention or patent application
CB03 Change of inventor or designer information

Designer after: Xu Zhongjiang

Designer after: Zhang Xuechen

Designer after: Liu Yijiang

Designer before: Xu Zhongjiang

Designer before: Zhang Xuechen

COR Change of bibliographic data

Free format text: CORRECT: DESIGNER; FROM: XU ZHONGJIANG; ZHANG XUECHEN TO: XU ZHONGJIANG; ZHANG XUECHEN; LIU YIJIANG

C17 Cessation of patent right
CX01 Expiry of patent term

Expiration termination date: 20140927

Granted publication date: 20060118