Wrench special for barring of roots vacuum pump

Abstract

The utility model discloses a special wrench for a Roots vacuum pump barring, and relates to the technical field of dismounting tools, the special wrench comprises a temporary storage fermentation tank, a material level sensor and a controller, the temporary storage fermentation tank is provided with a feeding pipe and a discharging pipe, the feeding pipe and the discharging pipe are respectively provided with a feeding electromagnetic valve and a discharging electromagnetic valve, and the discharging electromagnetic valve is connected with the temporary storage fermentation tank. The feeding pipe is connected with a feeding pump, and the discharging pipe is connected with a discharging pump; the material level sensor is arranged at the top of the temporary storage fermentation tank; and the controller is connected with the feeding electromagnetic valve, the discharging electromagnetic valve, the discharging pump and the feeding pump. One-man operation is achieved in an automatic control mode, convenience is achieved, and pipe bursting and material overflowing can be effectively prevented.

Description

Technical Field

[0001] The present application relates to the technical field of disassembly tools, and in particular to a special wrench for a Roots vacuum pump turning machine. Background Art

[0002] Turning the rotor is a must-do for Roots vacuum pump repair, maintenance, coupling alignment, and startup inspections. Due to the large size, large coupling outer diameter, and heavy rotor of certain Roots vacuum pump models, maintenance personnel cannot turn the rotor with their bare hands, so they currently use a pipe wrench to turn the rotor.

[0003] During maintenance, a pipe clamp weighing 40 kilograms and 1.2 meters long is used for cranking inspection on a pump body mounting frame at a height of 1.5 meters. The pipe clamp is clamped to the coupling, and the pipe clamp needs to be adjusted several times for one circle of cranking, which affects work efficiency. The working space is small and extremely inconvenient to use. At the same time, the pipe clamp is large in size and heavy in weight, and the surface of the coupling will be damaged during the cranking process. Utility Model Content

[0004] The main purpose of this application is to provide a special wrench for Roots vacuum pump turning, aiming to solve the above technical problems.

[0005] The technical solutions adopted in this application are as follows:

[0006] A special wrench for a Roots vacuum pump turning gear comprises an arc-shaped wrench body and handles arranged on both sides of the arc-shaped wrench body. The arc-shaped wrench body is provided with a jaw for inserting a coupling. A fixed die is provided on one side of the jaw, and a locking mechanism is provided on the opposite side of the jaw. The locking mechanism comprises a locking plate and an adjustment assembly. The adjustment assembly is used to adjust the movement of the locking plate to move closer to and away from the fixed die, so that the locking plate and the fixed die can clamp and release the coupling.

[0007] Optionally, the locking plate includes a sliding sleeve, a clamping plate is integrally formed on the sliding sleeve, a locking die is provided on the side of the sliding sleeve and the clamping plate facing the fixed die, a guide slider is fixedly provided at the bottom of the handle, the guide slider is provided in a sliding fit with the sliding sleeve, and the clamping plate is clamped on both sides of the handle.

[0008] Optionally, the adjustment component includes:

[0009] A push slider, which is slidably disposed at the bottom of the handle and is fixedly connected to the sliding sleeve;

[0010] a spring, the spring being disposed in the sliding sleeve, with two ends of the spring respectively abutting against the guide slider and the push slider;

[0011] An adjusting handle is integrally formed with an eccentric wheel, and the eccentric wheel is rotatably arranged at the bottom of the handle. The rotation of the eccentric wheel can push the locking plate to move toward the side of the fixed die through the pushing slider.

[0012] Optionally, a cylindrical head is provided on the side of the push slider facing the sliding sleeve, the cylindrical head is inserted into the sliding sleeve, and the cylindrical head and the sliding sleeve are fixedly connected via a first pin.

[0013] Optionally, the top surface of the pushing slider is provided with a sliding groove that slides with the handle.

[0014] Compared with the prior art, the present invention has the following advantages:

[0015] The embodiment of the present application proposes a special wrench for turning a Roots vacuum pump. Compared with a turning pipe pliers, it is small and light and eliminates safety hazards for maintenance personnel during work. By clamping the fixed die on any tooth of the coupling, the adjustment component is used to adjust the locking plate close to the fixed die to bite the coupling. Since the arc-shaped wrench body occupies half of the coupling position, the two handles of the wrench can be simultaneously subjected to force to rotate the coupling left and right, and the wrench can be rotated around the coupling in a smaller space without adjusting the wrench position back and forth, which greatly improves maintenance efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic diagram of the structure of a special wrench for a Roots vacuum pump turning machine provided in an embodiment of the present application;

[0017] Figure 2 An exploded view of a special wrench for a Roots vacuum pump turning gear provided in an embodiment of the present application;

[0018] Figure 3 for Figure 2 Enlarged view of point A in the middle.

[0019] Description of the reference numerals in the accompanying drawings:

[0020] 1-arc wrench body, 101-guide slider, 2-handle, 3-locking plate, 301-sleeve, 302-clamping plate, 303-locking die, 4-spring, 5-pushing slider, 6-cylindrical head, 7-first pin, 8-adjusting handle, 9-eccentric wheel, 10-second pin, 11-fixed die. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0022] It should be noted that all directional indications in the embodiments of the present application (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0023] In this application, unless otherwise specified or limited, the terms "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can mean fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. For those skilled in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0024] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present application, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the meaning of "and / or" appearing throughout the text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme in which A and B are satisfied at the same time. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement it. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0025] Refer to the attached Figure 1 The present invention provides a special wrench for a Roots vacuum pump turning gear, comprising a curved wrench body 1 and handles 2 disposed on either side of the curved wrench body 1. The handles 2 are integrally cast with the curved wrench body 1. The curved wrench body 1 is semicircular, making it easier to insert a coupling. Jaws are provided on the non-arched side of the curved wrench body 1, through which the coupling is inserted into the curved wrench body 1.

[0026] At the same time Figure 1As shown, a fixed die 11 is integrally formed on one side of the jaws, and the fixed die 11 meshes with any tooth on the coupling. A locking mechanism is provided on the opposite side of the jaws, and the locking mechanism includes a locking plate 3 and an adjustment component. A locking die 303 is provided on the side of the locking plate 3 facing the fixed die 11, and the locking die 303 bites on the diagonal teeth of the fixed die 11 with respect to the coupling. The locking plate 3 is adjusted to move closer to and away from the fixed die 11 by using the adjustment component, so that the locking plate 3 and the fixed die 11 can clamp and release the coupling.

[0027] Specifically:

[0028] like Figure 2 and Figure 3 As shown, the locking plate 3 includes a sleeve 301 and a clamping plate 302. The clamping plate 302 is integrally formed on the outer wall of the sleeve 301 along the axis of the sleeve 301. The clamping plate 302 has a clamping groove. The handle 2 is placed in the clamping groove so that the clamping plate 302 slides along the bottom of the handle 2. A guide slider 101 is integrally formed at the bottom of the handle 2. The guide slider 101 is provided in a sliding fit with the sleeve 301.

[0029] The adjustment assembly includes a push slider 5, a spring 4, and an adjustment handle 8. The top of the push slider 5 is set in a slide slot, and the bottom of the handle 2 slides into the slide slot. The end of the push slider 5 facing the sliding sleeve 301 is integrally formed with a cylindrical head 6, which is inserted into the sliding sleeve 301. The sliding sleeve 301 and the cylindrical head 6 are fixedly connected by a first pin 7. The sliding sleeve 301 is equipped with a spring 4, and the two ends of the spring 4 respectively abut the guide slider 101 and the push slider 5. At the same time, the top of the adjustment handle 8 is integrally formed with an eccentric wheel 9. The eccentric wheel 9 is rotatably mounted to the bottom of the handle 2 via a second pin 10, and the eccentric wheel 9 remains in contact with the push slider 5.

[0030] It can be imagined that during use, when repairing the Roots vacuum pump and the motor centering turntable, the fixed die 11 is clamped on any tooth of the coupling, the adjusting handle 8 is gripped toward the side of the handle 2, and the locking principle of the eccentric wheel 9 is used to push the locking plate 3 toward the side of the fixed die 11, so that the locking die 303 is locked on the diagonal teeth of the coupling. The wrench is installed. At this time, the wrench occupies half of the position of the coupling. The two handles 2 of the wrench can be subjected to force at the same time to rotate the coupling left and right, realizing the force rotation of the coupling at various angles and improving maintenance efficiency.

[0031] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application should be included in the scope of protection of the present application.

Claims

1. A special wrench for Roots vacuum pump turning, characterized in that: It includes an arc-shaped wrench body and handles arranged on both sides of the arc-shaped wrench body, the arc-shaped wrench body is provided with a jaw for inserting a coupling, a fixed die is provided on one side of the jaw, and a locking mechanism is provided on the opposite side of the jaw, the locking mechanism includes a locking plate and an adjustment component, the adjustment component is used to adjust the locking plate to move closer to and away from the fixed die, so that the locking plate and the fixed die can clamp and release the coupling.

2. The special wrench for turning a Roots vacuum pump according to claim 1, characterized in that: The locking plate includes a sliding sleeve, a clamping plate is integrally formed on the sliding sleeve, and a locking die is provided on the side of the sliding sleeve and the clamping plate facing the fixed die. A guide slider is fixedly provided at the bottom of the handle, and the guide slider is provided in a sliding fit with the sliding sleeve, and the clamping plate is clamped on both sides of the handle.

3. The special wrench for turning a Roots vacuum pump according to claim 2, characterized in that: The adjustment component includes: A push slider, which is slidably disposed at the bottom of the handle and is fixedly connected to the sliding sleeve; a spring, the spring being disposed in the sliding sleeve, with two ends of the spring respectively abutting against the guide slider and the push slider; An adjusting handle is integrally formed with an eccentric wheel, and the eccentric wheel is rotatably arranged at the bottom of the handle. The rotation of the eccentric wheel can push the locking plate to move toward the side of the fixed die through the pushing slider.

4. The special wrench for turning a Roots vacuum pump according to claim 3, characterized in that: A cylindrical head is provided on the side of the push slider facing the sliding sleeve. The cylindrical head is inserted into the interior of the sliding sleeve. The cylindrical head and the sliding sleeve are fixedly connected via a first pin.

5. The special wrench for turning a Roots vacuum pump according to claim 3, characterized in that: The top surface of the pushing sliding block is provided with a sliding groove which is slidably matched with the handle.

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