CN110451371B

CN110451371B - Prevent weighing down breaker tooth cover automatic switching control equipment

Info

Publication number: CN110451371B
Application number: CN201910684224.1A
Authority: CN
Inventors: 陈爱华; 穆铭豪; 宋达文; 应晔; 王健健
Original assignee: SCIENCE AND TECHNOLOGY DEVELOPMENT Co OF SRIBS
Current assignee: SCIENCE AND TECHNOLOGY DEVELOPMENT Co OF SRIBS
Priority date: 2019-07-26
Filing date: 2019-07-26
Publication date: 2021-02-05
Anticipated expiration: 2039-07-26
Also published as: CN110451371A

Abstract

The invention provides an automatic switching device for a tooth sleeve of an anti-falling safety device, which comprises an output shaft, wherein the axis of the output shaft extends left and right, the right end of the output shaft is provided with a spline shaft, the spline shaft is sleeved with a tooth sleeve which is matched with the spline shaft and can slide on the spline shaft, the tooth sleeve is sequentially provided with a first inner gear ring and a second inner gear ring along the axis direction of the tooth sleeve, the right end of the tooth sleeve is detachably connected with the second inner gear ring, the tooth sleeve is provided with a gear ring switching mechanism, and the gear ring switching mechanism is used for pushing the tooth sleeve to slide left. The anti-falling safety device can be suitable for anti-falling safety devices with different gear sizes, and has wider application range.

Description

Prevent weighing down breaker tooth cover automatic switching control equipment

Technical Field

The invention relates to the technical field of detection of anti-falling safers, in particular to an automatic switching device for tooth sleeves of an anti-falling safer.

Background

The anti-falling safety device is the most important safety protection device on the rack and pinion type construction hoist. According to the standard requirements of GB/T34025-2017 'progressive anti-falling safety device for gear for construction elevator', the anti-falling safety device needs to be subjected to factory inspection and periodic inspection in the using process.

The detection device needs to simulate the action of the elevator when the elevator descends and transmits the action to the anti-falling safety device through the output shaft. Because the anti-falling safety devices with different specifications exist in the market, the gears are different in size, and in order to be suitable for the anti-falling safety devices with different specifications, an output shaft assembly or a detection device needs to be replaced, so that time and labor are wasted. Therefore, there is a great need for an output shaft assembly that can accommodate fall arrestors of different gear sizes.

Disclosure of Invention

The invention aims to at least solve the technical problems in the prior art, and particularly provides an automatic switching device for a tooth sleeve of an anti-falling safety device, which can be suitable for anti-falling safety devices with different gear sizes and is convenient and quick to switch.

In order to achieve the purpose, the invention provides an automatic switching device for a tooth sleeve of an anti-falling safety device, which comprises an output shaft, wherein the axis of the output shaft extends leftwards and rightwards, the right end of the output shaft is provided with a spline shaft, the spline shaft is sleeved with a tooth sleeve which is matched with the spline shaft and can slide on the spline shaft, the tooth sleeve is sequentially provided with a first inner gear ring and a second inner gear ring along the axis direction of the tooth sleeve, the right end of the tooth sleeve is detachably connected with the second inner gear ring, the tooth sleeve is provided with a gear ring switching mechanism, and the gear ring switching mechanism is used for pushing the tooth sleeve to slide.

In the scheme, the method comprises the following steps: the gear ring switching mechanism comprises a shifting fork, and fork openings on two sides of the shifting fork are embedded into grooves in the neck of the gear sleeve through bearings or idler wheels respectively. The shifting fork can push the gear sleeve to slide left and right on the output shaft

In the scheme, the method comprises the following steps: the base is provided with a shifting fork seat used for fixing one end of a shifting fork, and the bottom end of a fork handle of the shifting fork is connected to the shifting fork seat through a pin shaft.

In the scheme, the method comprises the following steps: the gear ring switching mechanism comprises a pusher for controlling the position of a shifting fork, the pushing end of the pusher is connected to the shifting fork through a pin shaft, and the controlled end of the pusher is connected with the gear ring switching control end of the main control machine. The shifting fork is pushed by the pusher so as to push the gear sleeve to slide on the output shaft.

In the scheme, the method comprises the following steps: the output shaft is provided with a bearing seat used for supporting the output shaft, the bearing seat comprises a base, the base is provided with a shifting fork seat, and the bottom end of a fork handle of the shifting fork is connected to the shifting fork seat through a pin shaft.

In the scheme, the method comprises the following steps: the right-hand member of tooth cover is equipped with the holding ring, the internal diameter of holding ring equals with the external diameter of second ring gear, the outer lane of second ring gear evenly is equipped with a plurality of third connection journal stirrup along circumference, be equipped with the bayonet socket that supplies third connection journal stirrup card to go into on the holding ring to install the second ring gear on the tooth cover through the screw of connecting on the third connection journal stirrup. The inner gear ring replaced by the coupler can be quickly positioned through the positioning ring and the third connecting lug, and the installation time is saved.

In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that: can be applicable to the safety device that prevents weighing down of different gear sizes, application scope is wider, can also directly change the convenient simple internal tooth ring through telescopic pushing rod simultaneously.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

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

FIG. 2 is a cross-sectional view taken at A-A of FIG. 1;

fig. 3 is a right side view of fig. 1.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

The fall-preventing safety device gear sleeve automatic switching device shown in figures 1-3 comprises an output shaft 3 with an axis extending left and right and a bearing seat for supporting the output shaft 3. The bearing frame includes base 13, and base 13 top is equipped with antifriction bearing 5, and antifriction bearing 5 controls the support set-square 14 fixed connection that the interval set up in the top of base 13 through two. The left end of the output shaft 3 is provided with a bayonet 2 for connecting the coupler, the right end of the output shaft 3 is provided with a spline shaft 6, a gear sleeve 7 which is matched with the spline shaft 6 and can slide on the spline shaft 6 is sleeved outside the spline shaft, and the gear sleeve 7 is in spline connection with the spline shaft. The inner hole of the gear sleeve 7 is a step hole with the left inner diameter smaller than the right inner diameter. The right large-aperture section of the gear sleeve 7 is internally provided with internal teeth to form a first internal gear ring 8, the radius of the tooth crest of the first internal gear ring 8 is larger than that of the spline shaft 6, the right end of the gear sleeve 7 is detachably connected with a second internal gear ring 10, and the gear sleeve 7 is provided with a gear ring switching mechanism. The first inner gear ring 8 and the second inner gear ring 10 are formed by copying and processing output outer gears with different parameters of the anti-falling safety device, and the radius of the gear root of the second inner gear ring 10 corresponding to the anti-falling safety device is larger than the radius of the gear tooth top of the first inner gear ring 8 corresponding to the anti-falling safety device.

The gear ring switching mechanism comprises a shifting fork 9, fork openings 9a on two sides of the shifting fork 9 are respectively embedded into grooves on the neck of the gear sleeve 7 through bearings or idler wheels, and the gear sleeve 7 can be pushed to slide left and right on the output shaft 3 through the shifting fork 9. The base 13 is provided with a shifting fork seat 12 for fixing one end of the shifting fork 9, and the bottom end of a fork handle 9b of the shifting fork 9 is connected to the shifting fork seat 12 through a pin shaft.

The gear ring switching mechanism further comprises a pusher 11 for controlling the position of the shifting fork 9, the fork handle 9b comprises two vertically arranged connecting rods, and the push-out end 11a of the pusher 11 is positioned between the two connecting rods. The controlled end of the pusher 11 is connected with the gear ring switching control end of the main control machine, and the pusher 11 is driven by the main control machine to switch the first inner gear ring 8 or the second inner gear ring 10 to be connected with the anti-falling safety device according to the type of the anti-falling safety device.

Offer the mounting hole 17 that supplies impeller 11 to pass on two support set triangles 14, the left side of the support set triangle 14 that leans on the left side to set up is equipped with impeller support 1, impeller support 1 includes vertical connecting seat, vertical connecting seat fixed connection is in the left side of the support set triangle 14 that leans on the left side to set up, the right side of vertical connecting seat is equipped with the first connection journal stirrup 16 that passes from mounting hole 17, the left side of impeller 11 is equipped with second connection journal stirrup 15, the axis of rotation that first connection journal stirrup 16 and second connection journal stirrup 15 extend around through the axis is connected.

The right end of the gear sleeve 7 is provided with a positioning ring 7a, the inner diameter of the positioning ring 7a is equal to the outer diameter of the second inner gear ring 10, a plurality of third connecting lugs 10a are uniformly arranged on the outer ring of the second inner gear ring 10 along the circumferential direction, a bayonet for the third connecting lugs 10a to be clamped is arranged on the positioning ring 7, and the second inner gear ring 10 is installed on the gear sleeve 7 through screws connected to the third connecting lugs 10 a.

It will be appreciated by those skilled in the art that the above embodiments are only for illustrating the present invention and are not to be construed as limiting the present invention, and that changes, modifications, substitutions and variations of the above embodiments are within the scope of the appended claims as long as they are within the true spirit of the present invention.

Claims

1. The utility model provides a prevent weighing down breaker tooth cover automatic switching control equipment which characterized in that: the gear sleeve comprises an output shaft (3) with an axis extending left and right, wherein a spline shaft (6) is arranged at the right end of the output shaft (3), a gear sleeve (7) matched with the spline shaft and capable of sliding on the spline shaft is sleeved outside the spline shaft (6), a first inner gear ring (8) and a second inner gear ring (10) are sequentially arranged on the gear sleeve (92) along the axis direction of the gear sleeve, the right end of the gear sleeve (7) is detachably connected with the second inner gear ring (10), a gear ring switching mechanism is arranged on the gear sleeve (7), and the gear ring switching mechanism is used for pushing the gear sleeve (7) to slide left and right on the output shaft (3;

the gear ring switching mechanism comprises a shifting fork (9), and fork openings (9a) on two sides of the shifting fork (9) are respectively embedded into a groove on the neck of the gear sleeve (7) through bearings or rollers; be equipped with the bearing frame that is used for supporting output shaft (3) on output shaft (3), the bearing frame includes base (13), be equipped with fork seat (12) on base (13), the bottom of fork handle (9b) of shift fork (9) is through round pin hub connection on fork seat (12), base (13) top is equipped with antifriction bearing (5), antifriction bearing (5) are through two support set-square (14) fixed connection that control the interval and set up in the top of base (13), the left end of output shaft (3) is equipped with bayonet socket (2) that supply the coupling joint, be equipped with fork seat (12) that are used for fixed shift fork (9) one end on base (13), the bottom of fork handle (9b) of shift fork (9) is through round pin hub connection on fork seat (12).

2. The fall arrest safety gear sleeve automatic switching apparatus of claim 1, wherein: the gear ring switching mechanism comprises a pusher (11) for controlling the position of a shifting fork (9), wherein a pushing end (11a) of the pusher (11) is connected to the shifting fork (9) through a pin shaft, and a controlled end of the pusher (11) is connected with a gear ring switching control end of a main control machine.

3. The fall arrest safety gear sleeve automatic switching apparatus of claim 1, wherein: the right-hand member of tooth cover (7) is equipped with holding ring (7a), the internal diameter of holding ring (7a) equals with the external diameter of second ring gear (10), the outer lane of second ring gear (10) evenly is equipped with a plurality of third along circumference and connects journal stirrup (10a), be equipped with the bayonet socket that supplies third to connect journal stirrup (10a) card to go into on holding ring (7) to install second ring gear (10) on tooth cover (7) through connecting the screw on third connects journal stirrup (10 a).