阅读说明：本技术 一种起重机伸缩装置 (Telescopic device of crane ) 是由 祝凤金 王晓慧 高剑 张俊杰 江峰 吕桂志 付守冲 张东方 王东峰 于 2020-05-11 设计创作，主要内容包括：本发明公开了一种起重机伸缩装置,涉及起重机领域。该起重机伸缩装置包括固定臂、伸缩臂和安装座,固定臂的顶部固定连接有安装台,安装座固定安装在安装台上,安装座的侧壁固定有支撑条,支撑条一端固定有导轨,两组导轨之间连接第一转轴,第一转轴中部固定抵紧滚轮,第一转轴上还固定有主动轮,安装座的顶部固定支撑板,支撑板侧壁转动连接有第二转轴,第二转轴固定有从动轮,主动轮和从动轮上套接有皮带,第二转轴固定控制滚轮,控制滚轮上设有凸块,安装座上连接有计数器,计数器上设有按钮。该起重机伸缩装置实现了便于使用者计算出伸缩臂的长度,从而便于了解伸缩臂的工作状态是否在正常范围内,满足使用者需求。(The invention discloses a crane telescoping device, and relates to the field of cranes. This hoist telescoping device includes the fixed arm, flexible arm and mount pad, the top fixedly connected with mount pad of fixed arm, mount pad fixed mounting is on the mount pad, the lateral wall of mount pad is fixed with the support bar, support bar one end is fixed with the guide rail, connect first pivot between two sets of guide rails, first pivot middle part is fixed to tight gyro wheel, still be fixed with the action wheel in the first pivot, the top fixed support board of mount pad, the backup pad lateral wall rotates and is connected with the second pivot, the second pivot is fixed with from the driving wheel, the belt has been cup jointed on action wheel and the driven wheel, second pivot fixed control gyro wheel, be equipped with the lug on the control gyro wheel, be connected with the counter on the mount pad, be equipped with. The crane telescopic device realizes that a user can conveniently calculate the length of the telescopic arm, so that whether the working state of the telescopic arm is in a normal range or not can be conveniently known, and the requirements of the user can be met.)

1. The utility model provides a hoist telescoping device, includes fixed arm (1), flexible arm (2) and mount pad (3), flexible arm (2) sliding connection is in the inside axle center department of fixed arm (1), its characterized in that: top fixedly connected with mount table (101) of fixed arm (1), mount pad (3) are through the upper surface of fixed establishment fixed mounting in mount table (101), the two sets of support bars (4) of lateral wall fixedly connected with of mount pad (3), one end fixedly connected with guide rail (5) of mount pad (3) are kept away from in support bar (4), and are two sets of sliding connection has first pivot (6) between guide rail (5), the middle part fixedly connected with of first pivot (6) supports tight gyro wheel (7), be equipped with on guide rail (5) and support tight mechanism corresponding to tight gyro wheel (7), go back fixedly connected with action wheel (8) on first pivot (6), action wheel (8) are located to support between tight gyro wheel (7) and guide rail (5), the top fixedly connected with two sets of backup pads (9) of mount pad (3), and are two sets of lateral wall upper end between backup pad (9) is connected with second pivot (10) through the bearing rotation The utility model discloses a safety belt, fixedly connected with and action wheel (8) position are corresponding from driving wheel (11) on second pivot (10), belt (801) have been cup jointed on action wheel (8) and from driving wheel (11), middle part fixedly connected with control gyro wheel (12) of second pivot (10), be equipped with lug (1201) on control gyro wheel (12), the last fixed surface of mount pad (3) is connected with counter (13), be equipped with button (1301) on counter (13), the top of button (1301) is laminated with the outer wall of control gyro wheel (12) mutually.

2. A crane reach as claimed in claim 1, wherein: when the mounting seat (3) is mounted on the mounting table (101), the lower surface of the abutting roller (7) is attached to the telescopic arm (2).

3. A crane reach as claimed in claim 1, wherein: the fixing mechanism comprises an inserting block (102) and a ratchet bar (301), the inserting block (102) is fixedly connected to the side wall of the mounting table (101), a slot (1021) corresponding to the ratchet bar (301) is formed in the upper surface of the inserting block (102), the ratchet bar (301) is fixedly connected to the side wall of the mounting base (3), and the ratchet bar (301) is movably inserted into the slot (1021).

4. A crane retraction device according to claim 3, wherein: the number of the insertion blocks (102) and the ratchet bars (301) is four, and the insertion blocks and the ratchet bars are symmetrically distributed on two sides of the mounting table (101) and the mounting base (3) in pairs.

5. A crane retraction device according to claim 3, wherein: the plug block (102) is far away from two sets of axle seats (103) of one side fixedly connected with of mount table (101), and is two sets of the lateral wall of axle seat (103) is pegged graft and is had round pin axle (1031), sleeve pipe (104) has been cup jointed on round pin axle (1031), one side fixedly connected with clamp plate (1041) of sleeve pipe (104), opposite side fixedly connected with pawl (1042) of sleeve pipe (104), the tooth's socket has been seted up on ratchet bar (301), pawl (1042) mesh with the tooth's socket on ratchet bar (301), fixedly connected with screens spring (105) between clamp plate (1041) and mount table (101), screens spring (105) are in compression state.

6. A crane reach as claimed in claim 1, wherein: the abutting mechanism comprises a sliding groove (501), the sliding groove (501) is formed in the guide rail (5) and is in the vertical direction, a sliding block (502) is connected in the sliding groove (501) in a sliding mode, the first rotating shaft (6) is rotatably connected to the side wall of the sliding block (502) through a bearing, and an abutting spring (503) is arranged in the sliding groove (501).

7. A crane reach as claimed in claim 6, wherein: the top of the abutting spring (503) abuts against the top wall of the sliding groove (501), the bottom of the abutting spring (503) abuts against the top wall of the sliding block (502), and the abutting spring (503) is in a compressed state.

8. A crane reach as claimed in claim 1, wherein: the number of the driving wheels (8) is two, and the two groups of driving wheels (8) are symmetrically distributed on two sides of the abutting roller (7).

9. A crane reach as claimed in claim 1, wherein: the number of the driven wheels (11) is two, the two driven wheels (11) are symmetrically distributed on two sides of the control roller (12), and the size of each driven wheel (11) is the same as that of the driving wheel (8).

10. A crane reach as claimed in claim 1, wherein: the cross section of the lug (1201) is in a semi-arc shape, and the height of the lug (1201) is the same as that of the button (1301).

Technical Field

The invention relates to the technical field of cranes, in particular to a telescopic device of a crane.

Background

The crane is a multi-action hoisting machine capable of vertically lifting and horizontally carrying heavy objects within a certain range, is common in life, and can play a great role in a critical time.

The crane generally comprises a telescopic device, the telescopic device comprises a fixed arm and a telescopic arm, the telescopic arm is generally slidably connected to the axis of the fixed arm and is extended and shortened through hydraulic pressure, in the prior art, the longest extension of the telescopic arm is too short and needs to be detected, the working state of the telescopic device can be reflected to a certain extent by the longest extension, the conventional telescopic device is inconvenient to measure the arm length of the telescopic arm, the arm length of the telescopic arm is generally inconvenient to measure when the telescopic arm is longer, and the telescopic device for the crane aims at overcoming the defects of the prior art.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention discloses a crane telescoping device to solve the problems in the background technology.

(II) technical scheme

In order to achieve the purpose, the invention is realized by the following technical scheme: a telescopic device of a crane comprises a fixed arm, a telescopic arm and a mounting seat, wherein the telescopic arm is connected to the inner axle center of the fixed arm in a sliding manner, the top of the fixed arm is fixedly connected with the mounting seat, the mounting seat is fixedly arranged on the upper surface of the mounting seat through a fixing mechanism, the side wall of the mounting seat is fixedly connected with two groups of supporting strips, one ends of the supporting strips, far away from the mounting seat, are fixedly connected with guide rails, a first rotating shaft is connected between the two groups of guide rails in a sliding manner, the middle part of the first rotating shaft is fixedly connected with a tightening roller, the guide rails are provided with tightening mechanisms corresponding to the tightening roller, the first rotating shaft is also fixedly connected with a driving wheel, the driving wheel is positioned between the tightening roller and the guide rails, the top of the mounting seat is fixedly connected with two groups of supporting plates, fixedly connected with and the action wheel position is corresponding from the driving wheel in the second pivot, the belt has been cup jointed on action wheel and the follow driving wheel, the middle part fixedly connected with control roller of second pivot, the last lug that is equipped with of control roller, the last fixed surface of mount pad is connected with the counter, be equipped with the button on the counter, the top of button is laminated with control roller's outer wall mutually.

Preferably, when the mounting seat is mounted on the mounting table, the lower surface of the abutting roller is attached to the telescopic arm.

Preferably, the fixing mechanism comprises an insertion block and a ratchet bar, the insertion block is fixedly connected to the side wall of the mounting table, an insertion groove corresponding to the ratchet bar is formed in the upper surface of the insertion block, the ratchet bar is fixedly connected to the side wall of the mounting seat, and the ratchet bar is movably inserted into the insertion groove.

Preferably, the number of the insertion blocks and the ratchet bars is four, and the insertion blocks and the ratchet bars are symmetrically distributed on two sides of the mounting table and the mounting seat in pairs.

Preferably, one side of the insertion block, which is far away from the mounting table, is fixedly connected with two sets of shaft seats, two sets of side walls of the shaft seats are inserted with pin shafts, the pin shafts are sleeved with sleeves, one side of each sleeve is fixedly connected with a pressing plate, the other side of each sleeve is fixedly connected with a pawl, tooth grooves are formed in ratchet bars, the pawls are meshed with the tooth grooves in the ratchet bars, clamping springs are fixedly connected between the pressing plates and the mounting table, and the clamping springs are in a compression state.

Preferably, the abutting mechanism comprises a sliding groove, the sliding groove is formed in the guide rail and is in the vertical direction, a sliding block is connected in the sliding groove in a sliding mode, the first rotating shaft is rotatably connected to the side wall of the sliding block through a bearing, and an abutting spring is arranged in the sliding groove.

Preferably, the top of the abutting spring abuts against the top wall of the sliding groove, the bottom of the abutting spring abuts against the top wall of the sliding block, and the abutting spring is in a compressed state.

Preferably, the number of the driving wheels is two, and the two groups of driving wheels are symmetrically distributed on two sides of the abutting roller.

Preferably, the number of the driven wheels is two, the two groups of driven wheels are symmetrically distributed on two sides of the control roller wheel, and the size of the driven wheels is the same as that of the driving wheel.

Preferably, the cross-sectional shape of the projection is a half arc, and the height of the projection is the same as the height of the button.

The invention discloses a crane telescoping device, which has the following beneficial effects:

1. this hoist telescoping device, through setting up the mount table, the mount pad, the support bar, a guide rail, first pivot, support tight gyro wheel, the action wheel, a supporting plate, the second pivot, from the driving wheel, control roller and counter, the mount pad has been realized being convenient for on the mount table, make to support tight gyro wheel and flexible arm counterbalance, and then be convenient for measure the length of flexible arm, when flexible arm extension, can drive to support tight gyro wheel and action wheel and rotate, and then drive from driving wheel and control roller rotation, control roller rotates the round at every turn and can realize pressing down the button count to the counter, convenient to use person calculates the length of flexible arm, thereby be convenient for know the operating condition of flexible arm whether in normal range, satisfy the user demand.

2. This hoist telescoping device, fixed establishment's simple structure, the operation is stable, and is not fragile, when the user installation mount pad, easy operation is convenient, labour saving and time saving, and also be convenient for dismantle the mount pad, the inserted block and the mutual block of ratchet bar that set up, and ratchet bar and pawl mesh mutually, realized fixed effectual to the mount pad, and then indirectly guaranteed the accuracy of measuring the arm length, satisfied user's demand.

3. This hoist telescoping device through the tight mechanism that supports that sets up, supports the reaction force of tight spring and has realized supporting the surface production pressure of tight gyro wheel and flexible arm and more laminating, has increased the frictional force that supports between tight gyro wheel and the flexible arm promptly, when avoiding flexible arm extension, supports the not enough and not pivoted condition of tight gyro wheel rather than surface friction, and then has guaranteed the measurement accuracy of device, satisfies the user demand.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the mount and mounting table of the present invention;

FIG. 3 is an enlarged view of portion A of FIG. 2 according to the present invention;

FIG. 4 is a perspective view of the present invention;

FIG. 5 is an enlarged view of portion B of FIG. 4 in accordance with the present invention;

FIG. 6 is a cross-sectional view of a mount of the present invention;

FIG. 7 is an enlarged view of portion C of FIG. 6 in accordance with the present invention;

FIG. 8 is a side view of the present invention;

fig. 9 is an enlarged view of portion D of fig. 8 according to the present invention.

In the figure: 1. a fixed arm; 101. an installation table; 102. inserting a block; 1021. a slot; 103. a shaft seat; 1031. a pin shaft; 104. a sleeve; 1041. pressing a plate; 1042. a pawl; 105. a clamping spring; 2. a telescopic arm; 3. a mounting seat; 301. a ratchet bar; 4. a supporting strip; 5. a guide rail; 501. a chute; 502. a slider; 503. the spring is tightly propped; 6. a first rotating shaft; 7. tightly supporting the roller; 8. a driving wheel; 801. a belt; 9. a support plate; 10. a second rotating shaft; 11. a driven wheel; 12. controlling the roller; 1201. a bump; 13. a counter; 1301. a button.

Detailed Description

The embodiment of the invention provides a crane telescoping device, which comprises a fixed arm 1, a telescopic arm 2 and a mounting base 3, wherein the telescopic arm 2 is connected to the inner axis of the fixed arm 1 in a sliding manner, the top of the fixed arm 1 is fixedly connected with the mounting base 101, the mounting base 3 is fixedly arranged on the upper surface of the mounting base 101 through a fixing mechanism, the side wall of the mounting base 3 is fixedly connected with two groups of supporting strips 4, one ends of the supporting strips 4, far away from the mounting base 3, are fixedly connected with guide rails 5, and a first rotating shaft 6 is connected between the two groups of guide rails 5 in a sliding manner.

The middle part fixedly connected with of first pivot 6 supports tight gyro wheel 7, is equipped with on the guide rail 5 with support tight mechanism corresponding with supporting tight gyro wheel 7, and last fixedly connected with action wheel 8 that still goes up of first pivot 6, action wheel 8 are located and support between tight gyro wheel 7 and the guide rail 5, and the top fixedly connected with of mount pad 3 has two sets of backup pads 9, and the lateral wall upper end between two sets of backup pads 9 rotates through the bearing and is connected with second pivot 10.

A driven wheel 11 corresponding to the driving wheel 8 is fixedly connected to the second rotating shaft 10, a belt 801 is sleeved on the driving wheel 8 and the driven wheel 11, a control roller 12 is fixedly connected to the middle of the second rotating shaft 10, a bump 1201 is arranged on the control roller 12, and a counter 13 is fixedly connected to the upper surface of the mounting base 3.

The counter 13 is provided with a button 1301, the top of the button 1301 is attached to the outer wall of the control roller 12, the counter 13 can adopt a key counting device in the prior art, the technology is mature, and therefore the detailed description is omitted, in addition, a software system or a signal transmitter can be integrated in the counter 13, the measurement data can be directly calculated and sent to a receiving end of a user, so that the measurement data can be more conveniently displayed, the installation of the installation base 3 on the installation base 101 is facilitated by arranging the installation base 101, the installation base 3, the supporting bar 4, the guide rail 5, the first rotating shaft 6, the abutting roller 7, the driving wheel 8, the supporting plate 9, the second rotating shaft 10, the driven wheel 11, the control roller 12 and the counter 13, so that the abutting roller 7 abuts against the telescopic arm 2, the length of the telescopic arm 2 can be conveniently measured, when the telescopic arm 2 is extended, the abutting roller 7 and the driving wheel 8 can be driven to, and then drive from driving wheel 11 and control roller 12 and rotate, control roller 12 rotates the round at every and can realize pressing button 1301 count to counter 13, and convenient to use person calculates the length of flexible arm 2 to whether the operating condition of understanding flexible arm 2 is in normal range, satisfies the user demand.

When the mounting seat 3 is mounted on the mounting table 101, the lower surface of the abutting roller 7 is attached to the telescopic arm 2.

The fixing mechanism comprises an inserting block 102 and a ratchet bar 301, the inserting block 102 is fixedly connected to the side wall of the mounting platform 101, a slot 1021 corresponding to the ratchet bar 301 is formed in the upper surface of the inserting block 102, the ratchet bar 301 is fixedly connected to the side wall of the mounting base 3, the ratchet bar 301 is movably inserted into the slot 1021, the fixing mechanism is simple in structure, stable in operation and not prone to damage, when a user mounts the mounting base 3, the fixing mechanism is simple and convenient to operate, time and labor are saved, the mounting base 3 is convenient to detach, the inserting block 102 and the ratchet bar 301 are clamped with each other, the ratchet bar 301 is meshed with a pawl 1042, good fixing effect on the mounting base 3 is achieved, accuracy of arm length measurement is indirectly guaranteed, and user requirements are met.

The number of the insert blocks 102 and the ratchet bars 301 is four, and the insert blocks 102 and the ratchet bars 301 are symmetrically distributed on two sides of the mounting platform 101 and the mounting base 3, and the four insert blocks 102 and the ratchet bars 301 are arranged to enable the mounting base 3 to be fixed and stable.

One side of the plug block 102, which is far away from the mounting table 101, is fixedly connected with two sets of shaft seats 103, the side walls of the two sets of shaft seats 103 are inserted with a pin 1031, the pin 1031 is sleeved with a sleeve 104, one side of the sleeve 104 is fixedly connected with a pressing plate 1041, the other side of the sleeve 104 is fixedly connected with a pawl 1042, a tooth groove is formed in the ratchet bar 301, the pawl 1042 is meshed with the tooth groove in the ratchet bar 301, a clamping spring 105 is fixedly connected between the pressing plate 1041 and the mounting table 101, the clamping spring 105 is in a compressed state, and the clamping spring 105 can ensure that the pawl 1042 is meshed with the.

Support tight mechanism and include spout 501, spout 501 sets up in the inside of guide rail 5 and is vertical direction, sliding connection has slider 502 in spout 501, first pivot 6 passes through the bearing and rotates the lateral wall of connection at slider 502, be equipped with in the spout 501 and support tight spring 503, support tight mechanism through setting up, the reaction force that supports tight spring 503 has realized supporting tight gyro wheel 7 and telescopic boom 2's surface production pressure and more laminating, frictional force between tight gyro wheel 7 and telescopic boom 2 has been increased promptly, when avoiding telescopic boom 2 to extend, support tight gyro wheel 7 and the not pivoted condition rather than enough of its surface friction, and then guaranteed the measurement accuracy of device, satisfy user's demand.

The top of the abutting spring 503 abuts against the top wall of the sliding chute 501, the bottom of the abutting spring 503 abuts against the top wall of the sliding block 502, the abutting spring 503 is in a compressed state, the number of the driving wheels 8 is two, and the two groups of driving wheels 8 are symmetrically distributed on two sides of the abutting roller 7.

The number of the driven wheels 11 is two, the two groups of driven wheels 11 are symmetrically distributed on two sides of the control roller 12, and the size of the driven wheels 11 is the same as that of the driving wheel 8.

The cross-sectional shape of the projection 1201 is a half arc, and the height of the projection 1201 is the same as the height of the button 1301.

The working principle is as follows: when the user uses the device, the mounting base 3 can be mounted on the mounting table 101, specifically, the mounting base 3 is firstly pressed downwards corresponding to the mounting table 101, then the ratchet bar 301 is inserted into the slot 1021, at this time, the pawl 1042 engages with the tooth grooves on the ratchet bar 301 on the side wall of the ratchet bar 301, so that four groups of ratchet bars 301 can only move downwards, the ratchet bar 301 is clamped upwards by the clamping force of the pawl 1042, when moving downwards, the pawl 1042 is pushed upwards to make the pawl 1042 drive the sleeve 104 to rotate along the pin 1031, the sleeve 104 further drives the pressing plate 1041 to move, the pressing plate 1041 compresses the clamping spring 105, when the ratchet bar 301 continues to move downwards, and the pawl 1042 corresponds to the next tooth groove, the clamping spring 105 stretches and drives the pressing plate 1041 to move, the pressing plate 1041 further drives the sleeve 104 to rotate along the pin 1031, the sleeve 104 drives the pawl 1042 to clamp into the tooth grooves, and the same is true until the mounting base 3 is attached to the mounting table 101, the mounting base 3 can not move downwards continuously, because the pawl 1042 is engaged with the ratchet bar 301, the mounting base 3 is fixed,

when the mounting base 3 needs to be taken down, only the pressing plate 1041 needs to be pressed, so that the pressing plate 1041 drives the sleeve 104 to rotate along the pin 1031, the pawl 1042 is tilted, the pawl 1042 is disengaged from the ratchet bar 301, then the mounting base 3 is directly pulled out upwards, so that the mounting base 3 drives the ratchet bar 301 to disengage from the plug 102 and the slot 1021, and the mounting base 3 can be detached.

Pressing down mount pad 3 towards mount table 101 when installing mount pad 3, can making to support tight gyro wheel 7 and flexible arm 2 and offset, continue to press down mount pad 3, mount pad 3 drives support strip 4 and guide rail 5 and continues downstream, support tight gyro wheel 7 this moment and flexible arm 2 and offset, support tight gyro wheel 7 and drive slider 502 through first pivot 6 and slide and compress on spout 501 and support tight spring 503, support the reaction force of tight spring 503 and realized supporting tight gyro wheel 7 and flexible arm 2's surface production pressure and more laminating.

When the length of the telescopic arm 2 needs to be detected, when the telescopic arm 2 extends, the resisting roller 7 is driven to rotate, the resisting roller 7 further drives the first rotating shaft 6 to rotate on the side wall of the sliding block 502, the first rotating shaft 6 drives the driving wheel 8 to rotate, the driving wheel 8 drives the driven wheel 11 to rotate through the belt 801, the driven wheel 11 drives the second rotating shaft 10 to rotate, the second rotating shaft 10 drives the control roller 12 to rotate, the control roller 12 further drives the lug 1201 to rotate, when the lug 1201 rotates to the bottom, the button 1301 on the counter 13 is pressed to realize one-time counting, the length of the telescopic arm 2 extends all the time, the control roller 12 is driven to rotate all the time, the lug 1201 presses the button 1301 to realize counting, when the length of the telescopic arm 2 rises to the top, a user can multiply the circumference of the resisting roller 7 through the number displayed on the counter 13 to obtain the length of the telescopic arm 2, and the length of the telescopic arm 2 can be regularly, and then whether the working state of the telescopic arm 2 is in the normal range is convenient to know.

This device is through setting up mount table 101, mount pad 3, support bar 4, guide rail 5, first pivot 6, support tight gyro wheel 7, action wheel 8, backup pad 9, second pivot 10, from driving wheel 11, control roller 12 and counter 13, it is convenient for mount pad 3 on mount table 101 to have realized, make to support tight gyro wheel 7 and flexible arm 2 to offset, and then be convenient for measure the length of flexible arm 2, when flexible arm 2 extends, can drive to support tight gyro wheel 7 and action wheel 8 and rotate, and then drive from driving wheel 11 and control roller 12 and rotate, control roller 12 rotates the round at every turn and can realize pressing the button 1301 count to counter 13, the person of facilitating the use calculates the length of flexible arm 2, thereby be convenient for know the operating condition of flexible arm 2 whether in normal range, satisfy user's demand.

The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.