CN221020824U

CN221020824U - Belt pulley disassembly and assembly tool

Info

Publication number: CN221020824U
Application number: CN202322431921.0U
Authority: CN
Inventors: 宋成波; 张彩霞; 谢黎丽; 杨斌; 刘同帅; 刘涛
Original assignee: China Petroleum and Chemical Corp
Current assignee: China Petroleum and Chemical Corp
Priority date: 2023-09-07
Filing date: 2023-09-07
Publication date: 2024-05-28
Anticipated expiration: 2033-09-07

Abstract

The utility model provides a belt pulley dismounting tool, and belongs to the technical field of belt pulley dismounting and mounting tools. The belt pulley disassembly and assembly tool comprises a slide bar, wherein a sliding hammer is arranged on the slide bar, a crashed structure is arranged on the slide bar, at least two propping structures are arranged at the end part of the slide bar at intervals along the circumferential direction, each propping structure comprises a propping piece for propping the inner wall of a weight reduction groove of a belt pulley, each propping piece is provided with a propping station for propping the inner wall of the weight reduction groove after moving outwards along the radial direction, and a separating station for separating from the inner wall of the weight reduction groove after moving inwards along the radial direction; the crashed structure comprises a disassembling crashed structure arranged on one side of the sliding hammer, which is far away from the jacking structure, and the sliding hammer is impacted when the jacking piece is positioned at the jacking station, so that the belt pulley is disassembled. According to the utility model, the inner wall of the weight-reducing groove of the belt pulley is tightly propped by the propping piece, so that the belt pulley is tightly connected with the belt pulley, the mode can not damage the gear teeth outside the belt pulley, the shape of the groove can not be influenced, and the normal transmission of the belt and the service life of the belt pulley can be ensured.

Description

Belt pulley disassembly and assembly tool

Technical Field

The utility model relates to a belt pulley dismounting tool, and belongs to the technical field of belt pulley dismounting and mounting tools.

Background

The pumping unit is usually driven by a motor and a belt pulley, for example, a motor belt pulley structure which is easy to replace and disclosed in Chinese patent publication No. CN217271773U comprises a motor and a belt pulley arranged on a motor shaft, wherein the belt pulley is usually an iron casting and is provided with a concave inner cavity as a weight reducing groove. When the oil pumping well is in normal production, production parameters are required to be adjusted and a belt pulley is replaced due to the change of liquid amount, most of currently used belt pulley wheel pullers depend on the periphery of the belt pulley to pull wheels, and the currently used belt pulley wheel pullers only can pull wheels and cannot load the wheels due to the fact that the stress direction and the force applying mode are limited, the phenomena of slow and laborious wheel pulling, damage to the wheel and motor shell and the like are caused, the parameter adjustment time is too long, the well stopping time is long, and the crude oil production is influenced.

For example, the Chinese patent with the publication number of CN203818085U discloses an impact pulley wheel puller, which comprises a sliding rod, a jackscrew, a cross beam and a baffle plate, wherein the left end of the sliding rod is provided with a stop nut, the right end of the sliding rod is provided with an impact block, and a sliding hammer is sleeved on the sliding rod in a sliding way; the jackscrew is in threaded fit connection with the cross beam and is used for propping against the motor shaft, and the baffle is sleeved outside the motor shaft and is arranged at the rear side of the belt pulley so as to be in stop fit with the rear end surface of the belt pulley; the cross beam is fixedly connected with the baffle plate through a tension bolt. When the belt pulley is used, the sliding hammer slides along the sliding rod at a high speed to impact the impact block at the right end of the sliding rod, so that impact force is applied to the jackscrew, the jackscrew is screwed after the belt pulley is loosened, and the belt pulley can be detached by repeating the above operation.

The baffle in the pulley puller is in direct blocking contact with the rear end face of the pulley, namely in direct contact with the edge gear teeth of the pulley, and in the process that the sliding hammer knocks the impact block, the baffle directly applies force to the motor shaft through the jackscrew, but the baffle also applies reaction force to the end face of the pulley, so that deformation of the edge gear teeth of the pulley is easily caused, the shape of an outermost ring gear groove is influenced, and normal transmission of the belt and the service life of the pulley are influenced. Meanwhile, the wheel puller only has a pulley disassembly function, does not have a pulley installation function, needs to additionally carry installation tools, and has a plurality of carried tools, so that the problems of inconvenient carrying and time and labor waste in installation are caused.

Disclosure of utility model

The utility model aims to provide a belt pulley disassembly and assembly tool, which solves the problem that the shape of the outermost ring of wheel grooves is affected by deformation of wheel teeth at the edge of a belt pulley caused by direct force application to the end surface of the belt pulley by the existing wheel puller.

In order to achieve the above purpose, the belt pulley disassembly and assembly tool adopts the following technical scheme:

the pulley disassembly and assembly tool comprises a slide bar, wherein a slide hammer is slidably arranged on the slide bar, a crashed structure for the slide hammer to crash is further arranged on the slide bar, at least two propping structures are arranged at the end part of the slide bar at intervals along the circumferential direction, each propping structure comprises a propping piece for propping the inner wall of a weight reduction groove of a pulley, each propping piece is provided with a propping station for propping the inner wall of the weight reduction groove after moving outwards along the radial direction, and a disengaging station for disengaging the inner wall of the weight reduction groove after moving inwards along the radial direction; the crashed structure comprises a disassembly crashed structure arranged on one side, deviating from the jacking structure, of the sliding hammer, and the disassembly crashed structure is used for being impacted by the sliding hammer when the jacking piece is at the jacking station so as to realize disassembly of the belt pulley.

The beneficial effects of the technical scheme are that: the utility model provides an improved belt pulley disassembly and assembly tool, wherein at least two propping structures are arranged at the end part of a sliding rod at intervals along the circumferential direction, each propping structure comprises a propping piece for propping the inner wall of a weight reduction groove of a belt pulley, each propping piece is provided with two stations, the propping stations which are propped against the inner wall of the weight reduction groove after moving outwards along the radial direction can realize the fastening connection with the belt pulley, and then the belt pulley can be loosened by the sliding hammer to strike a disassembly and impacted structure arranged at one side of the sliding hammer, which is far away from the propping structure, so that the belt pulley is disassembled; the jacking piece is further provided with a disengaging station which is disengaged from the inner wall of the weight-reducing groove after moving inwards in the radial direction, so that the tool can be disassembled, and the jacking structures are convenient to enter the weight-reducing groove of the belt pulley on the other hand.

In summary, the inner wall of the weight-reducing groove of the belt pulley is propped up by the propping piece of the propping structure, so that the belt pulley is tightly connected with the belt pulley, the mode can not damage the gear teeth outside the belt pulley, the shape of the groove can not be influenced, and the normal transmission of the belt and the service life of the belt pulley can be ensured.

Further, the jacking structure further comprises a supporting rod which is fixed at the end part of the sliding rod and the axis of which extends along the radial direction of the sliding rod, at least two supporting rods are arranged at intervals along the circumferential direction of the sliding rod, and the jacking pieces are in one-to-one correspondence with the supporting rods and are connected through a threaded structure in a matched mode, so that the jacking pieces are switched between the jacking station and the separation station through rotating the jacking pieces.

The beneficial effects of the technical scheme are that: the supporting rod is arranged to enable the propping piece to be in threaded connection with the supporting rod, the propping piece can be enabled to move radially along the sliding rod through rotating the propping piece, so that the propping station is switched with the separating station, the structure is simple, the processing and the manufacturing are convenient, and the adjustment and the operation are convenient.

Further, the supporting rod comprises an external thread section, and the jacking piece is a jacking nut which is in threaded connection with the external part of the external thread section.

The beneficial effects of the technical scheme are that: the jacking nut is connected to the outside of the supporting rod, so that the adjustment operation is more convenient.

Further, the jacking structures are provided with more than three, and the jacking structures are uniformly distributed along the circumference.

The beneficial effects of the technical scheme are that: the belt pulley is more evenly stressed, and deformation is avoided.

Furthermore, the crashed structure further comprises a mounting crashed structure arranged on one side of the sliding hammer, which faces the propping structure, and the mounting crashed structure is used for being impacted by the sliding hammer when the propping piece is positioned at the propping station so as to realize the mounting of the belt pulley.

The beneficial effects of the technical scheme are that: the utility model can also realize the installation of the belt pulley, and one set of tool integrates two functions, thereby saving the cost and being convenient to carry and use.

Further, the mounting and dismounting of the bumped structure are both baffles fixed on the slide bar.

The beneficial effects of the technical scheme are that: the baffle is used as a crashed structure, the crashed area is ensured, and the device has simple structure and is convenient to process and manufacture.

Further, the bumped structure is removed as a baffle fixed to the slide bar.

Further, the end part of the sliding rod is provided with a threaded sleeve with internal threads through external threads, and each tightening structure is fixedly arranged on the threaded sleeve.

The beneficial effects of the technical scheme are that: during installation, the threaded sleeve and each tightening structure can be firstly arranged in the weight reduction groove of the belt pulley, and then the installation between the sliding rod and the threaded sleeve is carried out, so that the operation is more flexible and convenient.

Further, the belt pulley disassembly and assembly tool further comprises a fixed hoop used for being fixed on the belt pulley, and the fixed hoop comprises baffle rings used for being arranged on one side, facing the sliding hammer, of each jacking structure.

The beneficial effects of the technical scheme are that: through setting up fixed staple bolt to fixed staple bolt includes the backing ring, can block the tight structure of top when the tight structure of top and the heavy groove inner wall slippage of subtracting of belt pulley, avoid whole frock to take place great drunkenness and empty or injury operating personnel.

Further, the belt pulley disassembly and assembly tool further comprises a supporting frame which is matched with the sliding rod support to keep the sliding rod in a horizontal state.

The beneficial effects of the technical scheme are that: the sliding rod can be stably supported, and the belt pulley can be conveniently installed and disassembled smoothly.

Drawings

FIG. 1 is a view of a pulley assembly and disassembly tool according to the present utility model (not shown with a stationary anchor ear);

FIG. 2 is a schematic structural view of a fixed anchor ear of the pulley disassembly tool of the present utility model;

Fig. 3 is a view showing a state of use of the pulley dismounting tool of the present utility model (showing the fixing anchor ear).

In the figure: 1. a belt pulley; 1-1, a weight reducing groove; 2. a slide bar; 3. a slide hammer; 4. a handle; 5. disassembling the bumped baffle; 6. installing a crashed baffle; 7. a threaded sleeve; 8. a support rod; 9. tightly pushing the nut; 10. a support frame; 11. fixing the anchor ear; 11-1, a baffle ring.

Detailed Description

The features and capabilities of the present utility model are described in further detail below in connection with the examples.

Embodiment 1 of the pulley disassembly and assembly tool of the utility model:

According to the embodiment, the propping structure is arranged at the end part of the sliding rod and comprises the propping piece used for propping the inner wall of the weight-reducing groove of the belt pulley, the propping piece is provided with two stations, the fixing connection relationship with the belt pulley is established through the propping station of the propping piece, so that the belt pulley can be conveniently detached or installed through the cooperation of the sliding hammer and the crashed structure, in addition, the detachment of the tool is realized through the detachment station of the propping piece, or the propping structures are conveniently moved into the weight-reducing groove of the belt pulley. The utility model can not damage the external gear teeth of the belt pulley and can not influence the shape of the belt pulley groove by pushing the inner wall of the weight reducing groove of the belt pulley.

Specifically, as shown in fig. 1 and fig. 3, the belt pulley disassembly and assembly tool comprises a slide bar 2, a slide hammer 3 is slidably mounted on the slide bar 2, the extending direction of the slide bar 2 is defined as the front-back direction, and a handle 4 is arranged on the slide hammer 3 for conveniently controlling the front-back movement of the slide hammer 3.

The end (front end in this embodiment) of the slide bar 2 is provided with at least two propping structures at intervals along the circumferential direction, in this embodiment, four propping structures are all distributed along the circumferential direction, each propping structure comprises a propping piece for propping up the inner wall of the weight-reducing groove 1-1 of the belt pulley 1, the propping piece is provided with a propping station for propping up the inner wall of the weight-reducing groove 1-1 after moving outwards along the radial direction, and is also provided with a separating station for separating from the inner wall of the weight-reducing groove 1-1 after moving inwards along the radial direction. Specifically, the propping structure further comprises support rods 8 fixed at the end part of the slide rod 2 and the axis of which extends along the radial direction of the slide rod 2, wherein at least two (of course, four in the embodiment, the circumference is uniformly distributed, so that the propping structure is arranged in a cross shape) support rods 8 are arranged at intervals along the circumferential direction of the slide rod 2, and the propping pieces are in one-to-one correspondence with the support rods 8 and are connected through threaded structure cooperation.

Further, the supporting rod 8 comprises an external thread section, the tightening piece is a tightening nut 9 which is in threaded connection with the external part of the external thread section, and the tightening nut 9 can be radially moved along the sliding rod 2 by rotating, so that the structure is simple, the processing and the manufacturing are convenient, and the adjustment and the operation are convenient.

Further, the threaded sleeve 7 is installed at the end (front end in this embodiment) of the slide bar 2 through external threads, the threaded sleeve 7 is provided with internal threads, and each support bar 8 is welded and fixed on the threaded sleeve 7, so that when the belt pulley disassembly and assembly fixture is installed, the threaded sleeve 7 and each support bar 8 can be firstly installed in the weight-reducing groove 1-1 of the belt pulley 1, and then the installation between the slide bar 2 and the threaded sleeve 7 is performed, so that the operation is more flexible and convenient.

The slide bar 2 is further provided with a crashed structure for the sliding hammer 3 to crash, in this embodiment, the crashed structure comprises a disassembly crashed structure arranged on one side (i.e. the rear side) of the sliding hammer 3, which is away from the propping structure, and the disassembly crashed structure is used for the sliding hammer 3 to crash when the propping nut 9 is in the propping station so as to disassemble the belt pulley 1. Meanwhile, the crashed structure further comprises a mounting crashed structure arranged on one side (namely the front side) of the sliding hammer 3 facing the propping structure, and the mounting crashed structure is used for being impacted by the sliding hammer 3 when the propping nut 9 is in the propping station so as to realize the mounting of the belt pulley 1. In this embodiment, the installation is hit the structure and dismantle the baffle that is fixed on slide bar 2 by the structure, and the installation is hit the structure and is hit baffle 6 for the installation promptly, and the dismantlement is hit the structure and is hit baffle 5 for dismantling, utilizes the baffle as being hit the structure, is hit the area and has guaranteed, and simple structure, convenient processing manufacturing.

As shown in fig. 1 and 3, the belt pulley disassembly and assembly tool further comprises a support frame 10 which is in support fit with the slide rod 2 to keep the slide rod 2 in a horizontal state, wherein the support frame 10 is provided with a front support frame and a rear support frame, one of the support frames is positioned on the front side of the crashed baffle 6, the other support frame is positioned on the rear side of the crashed baffle 5, the two support frames 10 can stably support the slide rod 2, and the belt pulley disassembly and assembly operation can be smoothly carried out conveniently.

As shown in fig. 2 and 3, the belt pulley disassembly and assembly tool further comprises a fixed hoop 11 fixed on the belt pulley 1, the fixed hoop 11 comprises a baffle ring 11-1 arranged on one side (namely the rear side) of each tightening structure, which faces the sliding hammer 3, the fixed hoop 11 is arranged, and the fixed hoop 11 comprises the baffle ring 11-1, so that on one hand, a sliding rod 2 can pass through the fixed hoop, on the other hand, the tightening nut 9 can be blocked when the tightening nut 9 slips off the inner wall of the weight-reducing groove 1-1 of the belt pulley 1, and the whole belt pulley disassembly and assembly tool is prevented from larger movement to topple over or hurt operators.

The working principle of the belt pulley disassembly and assembly tool is as follows:

When the tightening structure is used, the tightening structure is installed in the weight-reducing groove 1-1 of the belt pulley 1, the tightening nut 9 on the supporting rod 8 is rotated by using a tool to tightly tighten the inner wall of the weight-reducing groove 1-1 to be in a tightening station, the tightening connection with the belt pulley 1 is realized, then the sliding rod 2 is connected with the threaded sleeve 7, the sliding rod 2 is supported by the supporting frame 10, and the fixed hoop 11 is installed for protection. When pulling out the pulley, only the handle 4 of the sliding hammer 3 is needed to be grasped by hands, the sliding hammer 3 is forcibly and rapidly impacted by the impact baffle 5 along the sliding rod 2 in a disassembly way, and the pulley 1 is pulled out by utilizing instantaneous loading force. When the belt pulley 1 is installed, the handle 4 of the sliding hammer 3 is grasped by hands, the sliding hammer 3 is impacted fast along the sliding rod 2 towards the installation crashed baffle 6, the belt pulley 1 is installed and fastened by utilizing instant loading force, and the purposes of time and labor saving, safety and high efficiency in pulling and installing the belt pulley are achieved. Meanwhile, the inner wall of the weight-reducing groove 1-1 is tightly pressed by the pressing nut 9, so that the mode can not damage the gear teeth outside the belt pulley, the shape of the groove can not be influenced, and the normal transmission of the belt and the service life of the belt pulley can be ensured.

Embodiment 2 of the pulley disassembly and assembly tool of the utility model: this embodiment provides different arrangement forms of the supporting frame, and is different from embodiment 1 in that only one supporting frame is arranged at the rear end of the sliding rod. In other embodiments, the connection relationship between the sliding rod and the threaded sleeve can be used for keeping the sliding rod horizontal without providing a supporting frame.

Embodiment 3 of the pulley disassembly and assembly tool of the utility model: the embodiment provides the different composition structure of belt pulley dismouting frock, and unlike embodiment 1, belt pulley dismouting frock no longer includes fixed staple bolt, and after tight spare in the time of pushing up and the slippage of subtracting heavy groove inner wall, the slide bar can take place the drunkenness.

Embodiment 4 of the pulley disassembly and assembly tool of the utility model: this embodiment provides a different arrangement of the slide bar end structure, unlike embodiment 1 in that the slide bar end is no longer provided with external threads, nor threaded sleeves, and each of the tightening structures is directly secured to the slide bar end.

Embodiment 5 of the pulley disassembly and assembly tool of the utility model: the present embodiment provides different setting forms of mounting the crashed structure and dismounting the crashed structure, unlike embodiment 1, the mounting crashed structure and the dismounting crashed structure are both stoppers, in other embodiments, step surfaces can also be processed on the slide bar, and the step surfaces are utilized as the crashed structure. In other embodiments, only the bumped structure may be mounted or only the bumped structure may be dismounted as a stop, the other being a stop or step surface.

Embodiment 6 of the pulley disassembly and assembly tool of the utility model: the present embodiment provides different arrangement forms of the crashed structure, unlike embodiment 1, the crashed structure only includes the disassembly of the crashed structure, and does not include the installation of the crashed structure, and at this time, the pulley disassembly tool is only used for the disassembly of the pulley.

Embodiment 7 of the pulley disassembly and assembly tool of the utility model: this embodiment provides the different setting forms of tight structure in top, and unlike embodiment 1, the tight structure in top is provided with three and along circumference equipartition, in other embodiments, the tight structure in top still can only set up two and along circumference equipartition, and the contained angle between two tight structures in top is 180 degrees this moment.

Embodiment 8 of the pulley disassembly and assembly tool of the utility model: the present embodiment provides different setting forms of the propping member and the supporting rod, unlike embodiment 1, in which an internal threaded hole is provided on the supporting rod, the propping member has external threads, and the propping member is a propping post screwed in the internal threaded hole of the supporting rod.

Embodiment 9 of the pulley disassembly and assembly tool of the utility model: the present embodiment provides different structural forms of the propping structure, unlike embodiment 1, in which the propping structure is a small hydraulic cylinder or a small air cylinder, and the propping member is a piston rod of the hydraulic cylinder or the air cylinder, and is switched between the propping station and the releasing station by controlling the action of the piston rod.

The above description is only a preferred embodiment of the present utility model, and the patent protection scope of the present utility model is defined by the claims, and all equivalent structural changes made by the specification and the drawings of the present utility model should be included in the protection scope of the present utility model.

Claims

1. The utility model provides a belt pulley dismouting frock, including slide bar (2), slidable mounting has slide hammer (3) on slide bar (2), still be provided with the structure that is strikeed that supplies slide hammer (3) to strike on slide bar (2), its characterized in that, the tip of slide bar (2) is provided with two at least tight structures in top along circumference interval, the tight structure in top is including the tight piece that is used for pushing up the heavy groove (1-1) inner wall of belt pulley (1), the tight piece in top has the tight station in top of heavy groove (1-1) inner wall after radially outwards moving, still have the disconnection station that breaks away from heavy groove (1-1) inner wall after radially inwards moving; the crashed structure comprises a dismounting crashed structure arranged on one side, deviating from the jacking structure, of the sliding hammer (3), and the dismounting crashed structure is used for being impacted by the sliding hammer (3) when the jacking piece is in the jacking station so as to realize the dismounting of the belt pulley (1).

2. The belt pulley disassembly and assembly tool according to claim 1, wherein the jacking structure further comprises support rods (8) fixed at the end part of the slide rod (2) and the axis of which extends along the radial direction of the slide rod (2), the support rods (8) are provided with at least two support rods along the circumferential direction of the slide rod (2) at intervals, the jacking pieces are in one-to-one correspondence with the support rods (8) and are connected through threaded structures in a matched mode, and the jacking pieces are switched between a jacking station and a separation station through rotation of the jacking pieces.

3. The belt pulley dismounting tool as claimed in claim 2, characterized in that the supporting rod (8) comprises an external thread section, and the tightening member is a tightening nut (9) screwed outside the external thread section.

4. A pulley disassembly and assembly tool according to any one of claims 1 to 3, wherein more than three jacking structures are provided and each jacking structure is circumferentially and uniformly distributed.

5. A belt pulley disassembly and assembly tool according to any one of claims 1 to 3, wherein the impacted structure further comprises an installation impacted structure arranged on one side of the sliding hammer (3) facing the tightening structure, and the installation impacted structure is used for enabling the sliding hammer (3) to impact when the tightening piece is in the tightening station so as to realize the installation of the belt pulley (1).

6. The pulley disassembly and assembly tool according to claim 5, wherein the mounting and disassembly of the bumped structure are both baffles fixed to the slide bar (2).

7. A pulley disassembly and assembly tool according to any one of claims 1 to 3, wherein the disassembly and assembly structure is a baffle plate fixed to the slide bar (2).

8. A pulley dismounting tool as claimed in any one of claims 1-3, characterized in that the end of the slide bar (2) is provided with a threaded sleeve (7) with an internal thread by means of an external thread, and that the respective tightening structure is fixedly mounted on the threaded sleeve (7).

9. A pulley dismounting tool as claimed in any one of claims 1-3, characterized in that the pulley dismounting tool further comprises a fixing anchor (11) for fixing to the pulley (1), the fixing anchor (11) comprising a stop ring (11-1) for arrangement on the side of each tightening structure facing the slide hammer (3).

10. A pulley disassembly and assembly tool according to any one of claims 1 to 3, further comprising a support frame (10) in supporting engagement with the slide bar (2) to maintain the slide bar (2) in a horizontal condition.